Land-air vehicle locking deviceTechnical Field
The invention belongs to the field of unmanned aerial vehicles, and particularly relates to a land-air vehicle locking device.
Background
The land-air vehicle consists of a land vehicle body system and an aircraft system, wherein the passage performance of the land vehicle body system in general terrain is good, the land vehicle body system has certain climbing obstacle-surmounting capacity and is greatly influenced by environmental factors, the aircraft system is compact in structure and safe in carrying, the efficient passage of a complex environment can be realized, and the endurance time of the aircraft and the adaptability of an extreme environment are still insufficient. The land-air vehicle not only can adapt to two working conditions of flying and running on land, but also can overcome the respective defects of a land vehicle body system and an aircraft system. However, there is less domestic related research on locking devices for land vehicle systems and aircraft systems in land-air vehicles. At present, the traditional locking device has the problems of complex structure, difficult accurate matching under dynamic state, instability, low reliability, incapability of flexibly switching between land and air modes and the like. Therefore, the research and development of the land-air vehicle locking device are very significant.
Disclosure of Invention
The invention aims to provide a land-air vehicle locking device aiming at the defects, and aims to solve the problems that how to improve the land-air vehicle locking device that the structure is complex, the precise matching is difficult under the dynamic state, the instability and the reliability are low, the land-air mode cannot be flexibly switched and the like. In order to achieve the above purpose, the present invention provides the following technical solutions:
The land-air vehicle locking device comprises a first matching part 1 and a second matching part 2, wherein the first matching part 1 comprises a first funnel-shaped shell 11 and an axial locking device 12, at least one circumferential locking hole 13 is formed in the first funnel-shaped shell 11, an opening 14 is formed in the top of the first funnel-shaped shell 11, the axial locking device 12 is arranged on the opening 14, the second matching part 2 comprises a second funnel-shaped shell 21, an axial positioning part 22 and a circumferential locking device 23, an axial positioning part 22 is arranged on the top of the second funnel-shaped shell 21, the circumferential locking device 23 is arranged on the second funnel-shaped shell 21, the circumferential locking device 23 is used for being matched with the circumferential locking hole 13, the axial locking device 12 is used for being matched with the axial positioning part 22, and the axial positioning part 22 is axially locked when passing through the opening 14. As is apparent from the above structure, the first mating portion 1 and the second mating portion 2 are connected to a land vehicle body system and an aircraft system of a land-air vehicle, respectively. The first funnel type housing 11 and the second funnel type housing 21 are funnel type shapes, the shapes of the first funnel type housing 11 and the second funnel type housing 21 are gradually enlarged from the top to the bottom, when the second funnel type housing 21 approaches to the first funnel type housing 11, the top of the second funnel type housing 21 is easier to enter the inner side of the first funnel type housing 11, and the first funnel type housing 11 can play a guiding role on the second funnel type housing 21, so that the second funnel type housing 21 moves along the inner side of the first funnel type housing 11 to the top of the first funnel type housing 11, and the first funnel type housing 11 and the second funnel type housing 21 are accurately matched and connected under a moving state. Therefore, when the land vehicle body system and the aircraft system need to be matched, even if the centers of the second funnel type housing 21 and the first funnel type housing 11 are not completely overlapped, the accurate matching of the two is not affected, the matching accuracy of the vehicle body system and the aircraft system under dynamic state is improved, and the system is flexible. The first funnel type shell 11 and the second funnel type shell 21 are funnel type shapes, so the outer wall of the second funnel type shell 21 can be completely attached to the inner wall of the first funnel type shell 11, and the structure of the land-air vehicle locking device is simple and compact. the top of the first funnel type housing 11 is provided with an opening 14, the top of the second funnel type housing 21 is provided with an axial positioning part 22, so when the second funnel type housing 21 approaches the first funnel type housing 11, the axial positioning part 22 is positioned at the front end and can enter the first funnel type housing 11 preferentially, if the axial positioning part 22 is positioned at the center of the first funnel type housing 11 and moves forward, the axial positioning part 22 is directly inserted into the opening 14, if the axial positioning part 22 is not positioned at the center of the first funnel type housing 11 and moves forward, the axial positioning part is turned along the inner wall of the first funnel type housing 11, and finally, the axial positioning part 22 returns to the center of the first funnel type housing 11 and moves forward under the structure that the first funnel type housing 11 and the second funnel type housing 21 are mutually guided, and is inserted into the opening 14, so as long as the axial positioning part 22 enters the first funnel type housing 11, the opening 14 can be aligned, and a dynamic lower vehicle body system and a flying system can be accurately matched. When the axial positioning portion 22 is inserted into the opening 14, the axial locking device 12 disposed on the opening 14 automatically locks the axial positioning portion 22, so that the first funnel-shaped housing 11 and the second funnel-shaped housing 21 are not axially separated, i.e., the land vehicle body system and the aircraft system are not axially separated after being mated. The first funnel-shaped shell 11 is provided with at least one circumferential locking hole 13, the second funnel-shaped shell 21 is provided with a circumferential locking device 23, and the circumferential locking hole 13 and the circumferential locking device 23 are matched with each other, so that the second funnel-shaped shell 21 is circumferentially locked when being matched with the inner side of the first funnel-shaped shell 11. So that the first and second hopper shells 11, 21 do not rotate circumferentially, i.e. after the land vehicle body system and the aircraft system are mated. the stability and reliability of the cooperation of the land vehicle body system and the aircraft system are improved.
In the whole working process, when the land vehicle body system and the aircraft system are required to be connected, the land vehicle body system and the aircraft system move in opposite directions, the first matching part 1 and the second matching part 2 connected to the land vehicle body system and the aircraft system move in opposite directions, and the axial positioning part 22 at the top of the second funnel-shaped shell 21 enters the first matching part 1 and moves along the inner side of the first matching part 1 to the top of the first matching part 1. When the axial positioning portion 22 passes through the opening 14, the axial locking device 12 provided on the opening 14 automatically locks the axial positioning portion 22, thereby completing the axial locking of the first and second funnel housings 11 and 21. Then, the circumferential locking holes 13 on the first funnel type housing 11 and the circumferential locking means 23 on the second funnel type housing 21 are engaged with each other, so that the first and second funnel type housings 11 and 21 are automatically circumferentially locked. When the land vehicle body system and the aircraft system need to be separated, the circumferential locking of the first funnel type housing 11 and the second funnel type housing 21 is released through the circumferential locking device 23, and then the axial locking of the first funnel type housing 11 and the second funnel type housing 21 is released through the axial locking device 12, so that the locking of the land vehicle body system and the aircraft system is completely released. The land-air vehicle locking device provided by the invention has the advantages that the structure is simple and compact, accurate matching can be realized under dynamic conditions, the land-air vehicle locking device is flexible and convenient to use due to the automatic axial locking and automatic circumferential locking functions, the land-air vehicle system and the aircraft system are rapidly matched and separated, and the stability and reliability of the matching of the land-air vehicle system and the aircraft system are improved through the axial locking and the circumferential locking of the land-air vehicle locking device.
Further, the axial positioning portion 22 includes an axial positioning rod 24 and an axial positioning head 25, the top of the second funnel-shaped housing 21 is provided with the axial positioning rod 24, the top of the axial positioning rod 24 is provided with the axial positioning head 25, and the axial positioning head 25 gradually increases from top to bottom. As is apparent from the above structure, the axial positioning rod 24 is attached to the top of the second funnel-shaped housing 21, and supports the axial positioning head 25. The axial positioning head 25 becomes progressively larger from top to bottom, enabling the axial positioning head 25 to be more easily guided inside the first funnel shaped housing 11 and aligned with the opening 14. The diameter of the bottom of the axial positioning head 25 is larger than that of the axial positioning rod 24, so that when the axial positioning rod 24 passes through the opening 14, the axial locking device 12 is clamped below the axial positioning head 25, the axial positioning head 25 cannot be separated from the opening 14 downwards, and after the first funnel-shaped shell 11 and the second funnel-shaped shell 21 are matched in place, the axial positioning head 25 cannot move upwards any more, and therefore the axial locking of the axial positioning part 22 is achieved, and the first funnel-shaped shell 11 and the second funnel-shaped shell 21 cannot be separated axially.
Further, the axial positioning portion 22 further includes a ball hinge 26, a first spring and a limiting plate 27, the axial positioning head 25 is hinged to the top of the axial positioning rod 24 through the ball hinge 26, the limiting plate 27 is arranged on the top of the axial positioning rod 24, the limiting plate 27 is used for limiting the overturning angle of the axial positioning head 25, and the first spring is used for enabling the axial positioning rod 24 to have a tendency of being ejected towards the top of the second funnel-shaped shell 21. As can be seen from the above structure, the axial positioning head 25 is hinged to the top of the axial positioning rod 24 by the spherical hinge 26, so that the axial positioning head 25 can freely turn over on the spherical hinge 26, and when the axial positioning head 25 touches the inner side of the first funnel-shaped housing 11 or the axial locking device 12, the position can be automatically adjusted, thereby facilitating the axial positioning head to quickly pass through the opening 14. The top of the axial positioning rod 24 is provided with a limiting plate 27, and the limiting plate 27 can limit the overturning angle of the axial positioning head 25 and prevent the positioning head 25 from being overturned excessively. The first spring enables the axial positioning rod 24 to be arranged at the top of the second funnel-shaped shell 21 in a telescopic way, when the axial positioning head 25 touches the inner side of the first funnel-shaped shell 11 or the axial locking device 12, the axial positioning head 25 can transmit axial impact to the axial positioning rod 24, so that the axial impact is absorbed by the first spring, the impact force of collision can be buffered to a certain extent, and the stability and the service life of the axial positioning part 22, the axial locking device and the first funnel-shaped shell 11 are improved. And the axial positioning part 22 is not located at the center of the first funnel-shaped shell 11 and moves forward, and then the axial positioning part can turn along the inner wall of the first funnel-shaped shell 11, and the first spring enables the axial positioning rod 24 to be telescopic, so that the first funnel-shaped shell 11 and the second funnel-shaped shell 21 are in guide fit with each other, the axial positioning part 22 returns to the center of the first funnel-shaped shell 11 to move forward quickly, and the axial positioning part is inserted into the opening 14, and quick and accurate positioning is realized.
Further, the axial locking device 12 comprises a bottom plate 15 and a plurality of blades 16, the blades 16 are rotatably arranged on the bottom plate 15 through a blade shaft, an opening 14 is arranged in the center of the bottom plate 15, the blades 16 uniformly encircle the opening 14, limiting parts corresponding to the blades 16 one by one are arranged on the bottom plate 15, torsion springs are arranged on the blade shaft and used for driving the blades 16 to abut against the limiting parts so that the blades 16 cover the opening 14, and one end of the bottom of each blade 16 is provided with a guide surface. According to the structure, the blades 16 are rotatably arranged on the bottom plate 15 through the blade shafts, the bottom plate 15 is arranged at the top of the first funnel-shaped shell 11, the torsion springs are arranged on the blade shafts, the blades 16 rotate under the action of the torsion springs, the limiting parts on the bottom plate 15 are used for limiting the rotation of the blades 16, and therefore the blades 16 are just blocked on the opening 14 under the combined action of the torsion springs and the limiting parts, and the opening 14 is made smaller. The blades 16 evenly surround the opening 14, conceal the opening 14 but do not completely cover the opening 14, facilitate passage of the axial positioning head 25 through the opening 14, and also lock the axial positioning portion 22 after it passes through the opening 14. One end of the bottom of the blade 16 is provided with a guide surface, when the axial positioning head 25 touches the guide surface of the bottom of the blade 16 to move upwards, thrust is generated on the guide surface, the blade 16 is pushed to rotate against the torsion force of the torsion spring, a passive opening state is formed, and the axial positioning head 25 is allowed to pass through the opening 14 in the center of the bottom plate 15. When the axial positioning head 25 passes through the opening 14, the blade 16 is rotated and reset under the action of the torsion spring, and is restored to a closed state, and is propped against the limiting part again, and is blocked under the axial positioning head 25 to form locking, so that automatic axial locking is completed.
Further, the axial locking device 12 further comprises a driving motor, a driving gear 17 and a driving ring 18, wherein the driving ring 18 is rotatably arranged on the bottom plate 15, a plurality of inner arc racks 19 which are spaced mutually are arranged on the inner periphery of the driving ring 18, driven wheels 31 are arranged on the blade shafts, a section of first arc racks 32 are arranged on the outer periphery of the driven wheels 31, the first arc racks 32 are in one-to-one correspondence with the inner arc racks 19, outer arc racks 33 meshed with the driving gear 17 are arranged on the outer periphery of the driving ring 18, and the driving motor is used for driving the driving gear 17 to enable the driving ring 18 to rotate positively and negatively. According to the structure, the annular groove is formed in the bottom plate 15, the driving ring 18 is arranged in the annular groove and can rotate on the bottom plate 15, the outer arc-shaped rack 33 meshed with the driving gear 17 is arranged on the periphery of the driving ring 18, and when the driving motor drives the driving gear 17 to rotate positively and negatively, the driving gear 17 drives the driving ring 18 to rotate positively and negatively. The inner circumference of the driving ring 18 is provided with a plurality of inner arc racks 19 spaced apart from each other, for example, 6 inner arc racks 19 are provided on the inner circumference of the driving ring 18, and the 6 inner arc racks 19 are spaced apart from each other, and no tooth portion is provided in the interval. The driven wheels 31 are arranged on the blade shafts, the first arc-shaped racks 32 which are in one-to-one correspondence with the inner arc-shaped racks 19 are arranged on the outer circumferences of the driven wheels 31, the number of the driven wheels 31 and the number of the inner arc-shaped racks 19 are in one-to-one correspondence, 6 inner arc-shaped racks 19 are arranged on the inner circumferences of the driving rings 18, and then the number of the driven wheels 31 is 6. The driven wheel 31 periphery is equipped with one section first arc rack 32, and when driven wheel 18 rotation in-process, driven wheel 31 is located between two interior arc racks 19, and driven wheel 31 rotation can not be driven through first arc rack 32 to drive the driven wheel 18, and when driven wheel 31 is located corresponding interior arc rack 19, driven wheel 18 can be through interior arc rack 19 meshing corresponding first arc rack 32 drive driven wheel 31 rotation. The axial locking device 12 has an axial automatic locking state and an axial active unlocking state, when the axial automatic locking state is adopted, the driven wheel 31 is positioned between the two inner arc racks 19, when the axial positioning head 25 touches the guide surface at the bottom of the blade 16 to move upwards continuously, thrust is generated on the guide surface, the blade 16 is pushed to overcome the torsion rotation of the torsion spring, the blade 16 rotates anticlockwise with the blade shaft as the center to form a passive opening state, the axial positioning head 25 is allowed to pass through the opening 14 in the center of the bottom plate 15, and the driven wheel 31 is positioned between the two inner arc racks 19, so that the blade 16 rotates to drive the blade shaft and the driven wheel 31 to rotate, the first arc rack 32 of the driven wheel 31 cannot contact the inner arc racks 19, and the driving ring 18 cannot be interfered, thereby realizing automatic axial locking. When in an axial active unlocking state, the driving motor drives the driving gear 17, the driving gear 17 drives the driving ring 18 to rotate anticlockwise, the first arc-shaped rack 32 is meshed with the corresponding inner arc-shaped rack 19, and accordingly the driving ring 18 rotates to drive the driven wheel 31 to rotate anticlockwise, so that the plurality of blades 16 rotate anticlockwise, the opening 14 is actively opened, and the axial positioning head 25 is unlocked. The axial locking device 12 can realize automatic locking and active unlocking of the axial positioning part 22, and realizes flexible switching of the air-ground mode.
Further, the circumferential locking device 23 comprises at least one circumferential locking mechanism 28, the circumferential locking mechanism 28 comprises circumferential locking blocks 29 and second springs 41, through holes 42 corresponding to the circumferential locking holes 13 one by one are formed in the second funnel-shaped shell 21, the circumferential locking blocks 29 are hinged to the through holes 42, and the second springs 41 are used for driving the circumferential locking blocks 29 to cover the through holes 42 from the inner side, so that the circumferential locking blocks 29 protrude out of the outer surface of the second funnel-shaped shell 21. As can be seen from the above structure, one end of the circumferential locking piece 29 is hinged to the through hole 42 and connected to the second funnel-shaped housing 21, and the other end is connected to the edge of the through hole 42 through the second spring 41 and protrudes from the outer surface of the second funnel-shaped housing 21 through the through hole 42 under the tensile force of the second spring 41. When the through hole 42 on the second funnel type housing 21 is not rotated to overlap with the circumferential locking hole 13 on the first funnel type housing 11, the inner wall of the first funnel type housing 11 presses the circumferential locking block 29, the circumferential locking block 29 overcomes the tensile force of the second spring 41 and cannot protrude out of the through hole 42, when the through hole 42 on the second funnel type housing 21 is rotated to overlap with the circumferential locking hole 13 on the first funnel type housing 11, the circumferential locking block 29 ejects out under the action of the second spring 41, and the circumferential locking block 29 is clamped on the through hole 42 and the circumferential locking hole 13, so that the second funnel type housing 21 and the first funnel type housing 11 cannot rotate relatively in the circumferential direction, and the circumferential automatic locking is completed.
Further, the circumferential locking device 23 further comprises a central shaft 43 and an up-down driving mechanism, the central shaft 43 is fixed at the center of the second funnel-shaped shell 21, a movable sleeve 44 is sleeved on the central shaft 43, the movable sleeve 44 is driven by the up-down driving mechanism to move up and down along the central shaft 43, the circumferential locking mechanism 28 further comprises a connecting rod 45 and a connecting sleeve 46, one end of the connecting rod 45 is hinged to the movable sleeve 44, the other end of the connecting rod 45 is sleeved with the connecting sleeve 46, a telescopic allowance is reserved between the connecting sleeve 46 and the connecting rod 45, and the connecting sleeve 46 is hinged to the circumferential locking block 29. As can be seen from the above structure, the movable sleeve 44 is sleeved on the central shaft 43, and the up-and-down driving mechanism can drive the movable sleeve 44 to move up and down along the central shaft 43. One end of the connecting rod 45 is hinged to the moving sleeve 44, and when the moving sleeve 44 moves up and down along the central shaft 43, one end of the connecting rod 45 moves up and down. The other end of the connecting rod 45 is sleeved with a connecting sleeve 46, and a telescopic allowance is arranged between the connecting sleeve 46 and the connecting rod 45, so that the other end of the connecting rod 45 can move back and forth inside the connecting sleeve 46. The circumferential locking device 23 has a circumferential automatic locking state and a circumferential active unlocking state, when the circumferential automatic locking state is in, the first funnel type shell 11 and the second funnel type shell 21 are in transition from separation to matching, the circumferential locking block 29 passes through the through hole 42 under the action of the tension force of the second spring 41 and protrudes out of the outer surface of the second funnel type shell 21, because the connecting sleeve 46 is hinged to the circumferential locking block 29, and at the moment, the circumferential locking block 29 drives the connecting sleeve 46 to be far away from the connecting rod 45. When the first funnel type housing 11 overlaps the second funnel type housing 21 but the through hole 42 on the second funnel type housing 21 does not overlap the circumferential locking hole 13 on the first funnel type housing 11, the inner wall of the first funnel type housing 11 presses the circumferential locking piece 29, the circumferential locking piece 29 is retracted inward toward the second funnel type housing 21 by the pressure of the first funnel type housing 11, and the connecting sleeve 46 is pushed to approach the connecting rod 45, and the connecting sleeve 46 is not pushed to approach the connecting rod 45 due to the expansion margin between the connecting sleeve 46 and the connecting rod 45. When the through hole 42 on the second funnel type housing 21 rotates to overlap with the circumferential locking hole 13 on the first funnel type housing 11, the circumferential locking block 29 pops up under the action of the second spring 41 and drives the connecting sleeve 46 to be far away from the connecting rod 45, and as the expansion allowance exists between the connecting sleeve 46 and the connecting rod 45, the connecting rod 45 is not pulled when the connecting sleeve 46 is close to the connecting rod 45, free retraction and ejection of the circumferential locking block 29 are realized, the circumferential locking block 29 is clamped on the through hole 42 and the circumferential locking hole 13, and the second funnel type housing 21 and the first funnel type housing 11 cannot rotate relatively in the circumferential direction, so that circumferential automatic locking is completed. At this time, the circumferential active locking state can be started, that is, the up-down driving mechanism drives the moving sleeve 44 to move downwards and drives the connecting rod 45 to move, the other end of the connecting rod 45 does not apply force to the connecting sleeve 46 due to the expansion allowance, the moving sleeve 44 continues to move downwards until the expansion allowance is insufficient, at this time, the connecting rod 45 props against the circumferential locking block 29 through the connecting sleeve 46, the circumferential locking block 29 is ensured not to trip, and the stability and reliability of the circumferential locking of the land vehicle body system and the aircraft system are improved. When the movable sleeve 44 is in the circumferential active unlocking state, the up-down driving mechanism drives the movable sleeve 44 to move upwards and drives the connecting rod 45 to move, the connecting rod 45 can not drive the connecting sleeve 46 at first due to the expansion allowance, the movable sleeve 44 continues to move upwards until the expansion allowance is insufficient, at this time, the connecting sleeve 46 is pulled by the connecting rod 45, and then the circumferential locking block 29 is driven, when the connecting sleeve 46 generates a pulling force on the circumferential locking block 29 which is larger than that of the second spring 41, the circumferential locking block 29 retracts into the second funnel-shaped shell 21, and thus the circumferential locking is released. The present circumferential locking device 23 can realize automatic locking and active unlocking of the first and second funnel type housings 11 and 21, and flexible switching of the air-ground mode.
Further, the circumferential locking device 23 further comprises a rotating motor for driving the central shaft 43 to rotate. As is clear from the above-described structure, when the first and second funnel housings 11 and 21 are circumferentially locked, the first and second funnel housings 11 and 21 are close to each other, but the circumferential locking hole 13 in the first funnel housing 11 and the through hole 42 in the second funnel housing 21 do not necessarily overlap exactly. The rotating motor drives the central shaft to rotate, drives the second matching part 2 to integrally rotate until the circumferential locking hole 13 on the first funnel-shaped shell 11 is overlapped with the through hole 42 on the second funnel-shaped shell 21, and the circumferential locking block 29 pops up under the action of the second spring 41, so that the circumferential automatic locking is realized.
Further, the first funnel-shaped shell 11 is provided with at least two layers of circumferential locking holes 13 at different height positions, each layer of circumferential locking holes 13 is provided with a plurality of circumferential locking holes 13, and the circumferential locking holes 13 of different layers are staggered. As can be seen from the above structure, the first funnel-shaped housing 11 is provided with at least two layers of circumferential locking holes 13 at different height positions, and each layer has a plurality of circumferential locking holes 13, so that when the first fitting portion 1 integrally rotates, the circumferential locking holes 13 on the first funnel-shaped housing 11 can be aligned and overlapped with the through holes 42 on the second funnel-shaped housing 21 rapidly. The circumferential locking holes 13 of different layers are staggered, and after the first funnel type shell 11 and the second funnel type shell 21 are locked in the circumferential direction, the stress distribution of the first funnel type shell 11 and the second funnel type shell 21 is more uniform due to multi-point locking, so that the stability of the locking device is improved.
Further, the first matching portion 1 further includes a fixing base 51 and a plurality of telescopic rods 52, the first funnel-shaped housing 11 includes a plurality of curved surface units 53, the curved surface units 53 and the telescopic rods 52 are in one-to-one correspondence, the tops of the curved surface units 53 are hinged to the fixing base 51, one end of the telescopic rods 52 are hinged to the fixing base 51, and the other end of the telescopic rods 52 are hinged to the corresponding curved surface units 53. As can be seen from the above structure, the first funnel-shaped housing 1 is formed by a plurality of curved surface units 53, one end of each curved surface unit 53 is hinged on the fixing seat 51, the other end of each curved surface unit 53 is hinged with the corresponding telescopic rod 52, and the curved surface units 53 can be driven to turn over when the telescopic rod 52 stretches. When the first funnel-shaped shell 11 and the second funnel-shaped shell 21 need to be connected in a matched mode, the telescopic rod 52 is contracted to drive the curved surface unit 53 to open, so that the bottom of the first funnel-shaped shell 11 presents a larger matching area, when the second funnel-shaped shell 21 approaches the first funnel-shaped shell 11, the top of the second funnel-shaped shell 21 enters the inner side of the first funnel-shaped shell 11 more easily, and then the telescopic rod 52 is stretched to drive the curved surface unit 53 to close, and connection is completed. The first funnel type housing 11 can play a guiding role on the second funnel type housing 21, so that the second funnel type housing 21 moves along the inner side of the first funnel type housing 11 to the top of the first funnel type housing 11, and the first funnel type housing 11 and the second funnel type housing 21 are accurately matched and connected in a moving state.
The beneficial effects of the invention are as follows:
The invention discloses a land-air vehicle locking device, which comprises a first funnel-shaped shell and an axial locking device, wherein at least one circumferential locking hole is formed in the first funnel-shaped shell, an opening is formed in the top of the first funnel-shaped shell, the axial locking device is arranged on the opening, a second matching part comprises a second funnel-shaped shell, an axial positioning part and the circumferential locking device, the axial positioning part is arranged on the top of the second funnel-shaped shell, the circumferential locking device is arranged on the second funnel-shaped shell, the circumferential locking device is used for matching with the circumferential locking hole to enable the second funnel-shaped shell to be circumferentially locked when being matched with the inner side of the first funnel-shaped shell, and the axial locking device is used for matching with the axial positioning part to enable the axial positioning part to be axially locked when passing through the opening. The land-air vehicle locking device is simple and compact in structure, the vehicle body system and the flight system can be accurately matched under dynamic conditions, the device is flexible and dynamic, the stability and the reliability are high, the flexible switching of the land-air modes is realized, and the trafficability of a complex environment of the land-air vehicle is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the first mating portion and the second mating portion of the present invention in a close-facing configuration;
FIG. 3 is a schematic view of the first mating portion and the second mating portion of the present invention shown in close-up facing relationship;
FIG. 4 is a schematic view of the structure of the present invention after the first mating portion and the second mating portion are fully mated without circumferential locking;
FIG. 5 is a schematic view of the circumferential lock configuration of the present invention after the first mating portion and the second mating portion are fully mated;
FIG. 6 is a schematic view of the locking arrangement of the first and second mating portions of the present invention;
FIG. 7 is a schematic view of the axial positioning portion structure of the present invention;
FIG. 8 is a schematic view of the circumferential locking device of the present invention;
FIG. 9 is a schematic top view of a first funnel housing structure of the present invention;
FIG. 10 is a schematic top view of the axial locking device of the present invention;
FIG. 11 is a schematic view of the axial locking device of the present invention in a bottom view;
FIG. 12 is a schematic view of the three-dimensional structure of the axial locking device of the present invention;
FIG. 13 is a schematic view of the open structure of the first funnel housing of the present invention;
FIG. 14 is a schematic view of a first funnel housing closure structure of the present invention;
in the drawing, a first matching part, a second matching part, a first 11-funnel-shaped shell, a second 12-axial locking device, a circumferential 13-locking hole, a first 14-opening, a second 15-bottom plate, a first 16-blade, a second 17-driving gear, a first 18-driving ring, a second 19-inner arc-shaped rack, a second 21-funnel-shaped shell, a second 22-axial positioning part, a first 23-circumferential locking device, a second 24-axial positioning rod, a first 25-axial positioning head, a second 26-spherical hinge, a first 27-limiting plate, a second 28-circumferential locking mechanism, a first 29-circumferential locking block, a second 31-driven wheel, a first 32-arc-shaped rack, a second 33-outer arc-shaped rack, a second 41-spring, a second 42-through hole, a second 43-central shaft, a second 44-moving sleeve, a second 45-connecting rod, a second 46-connecting sleeve, a first 51-fixing seat, a second 52-telescopic rod and a curved unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and the detailed description, but the present invention is not limited to the following examples.
Embodiment one:
See fig. 1-14. The land-air vehicle locking device comprises a first matching part 1 and a second matching part 2, wherein the first matching part 1 comprises a first funnel-shaped shell 11 and an axial locking device 12, at least one circumferential locking hole 13 is formed in the first funnel-shaped shell 11, an opening 14 is formed in the top of the first funnel-shaped shell 11, the axial locking device 12 is arranged on the opening 14, the second matching part 2 comprises a second funnel-shaped shell 21, an axial positioning part 22 and a circumferential locking device 23, an axial positioning part 22 is arranged on the top of the second funnel-shaped shell 21, the circumferential locking device 23 is arranged on the second funnel-shaped shell 21, the circumferential locking device 23 is used for being matched with the circumferential locking hole 13, the axial locking device 12 is used for being matched with the axial positioning part 22, and the axial positioning part 22 is axially locked when passing through the opening 14. As is apparent from the above structure, the first mating portion 1 and the second mating portion 2 are connected to a land vehicle body system and an aircraft system of a land-air vehicle, respectively. The first funnel type housing 11 and the second funnel type housing 21 are funnel type shapes, the shapes of the first funnel type housing 11 and the second funnel type housing 21 are gradually enlarged from the top to the bottom, when the second funnel type housing 21 approaches to the first funnel type housing 11, the top of the second funnel type housing 21 is easier to enter the inner side of the first funnel type housing 11, and the first funnel type housing 11 can play a guiding role on the second funnel type housing 21, so that the second funnel type housing 21 moves along the inner side of the first funnel type housing 11 to the top of the first funnel type housing 11, and the first funnel type housing 11 and the second funnel type housing 21 are accurately matched and connected under a moving state. Therefore, when the land vehicle body system and the aircraft system need to be matched, even if the centers of the second funnel type housing 21 and the first funnel type housing 11 are not completely overlapped, the accurate matching of the two is not affected, the matching accuracy of the vehicle body system and the aircraft system under dynamic state is improved, and the system is flexible. The first funnel type shell 11 and the second funnel type shell 21 are funnel type shapes, so the outer wall of the second funnel type shell 21 can be completely attached to the inner wall of the first funnel type shell 11, and the structure of the land-air vehicle locking device is simple and compact. the top of the first funnel type housing 11 is provided with an opening 14, the top of the second funnel type housing 21 is provided with an axial positioning part 22, so when the second funnel type housing 21 approaches the first funnel type housing 11, the axial positioning part 22 is positioned at the front end and can enter the first funnel type housing 11 preferentially, if the axial positioning part 22 is positioned at the center of the first funnel type housing 11 and moves forward, the axial positioning part 22 is directly inserted into the opening 14, if the axial positioning part 22 is not positioned at the center of the first funnel type housing 11 and moves forward, the axial positioning part is turned along the inner wall of the first funnel type housing 11, and finally, the axial positioning part 22 returns to the center of the first funnel type housing 11 and moves forward under the structure that the first funnel type housing 11 and the second funnel type housing 21 are mutually guided, and is inserted into the opening 14, so as long as the axial positioning part 22 enters the first funnel type housing 11, the opening 14 can be aligned, and a dynamic lower vehicle body system and a flying system can be accurately matched. When the axial positioning portion 22 is inserted into the opening 14, the axial locking device 12 disposed on the opening 14 automatically locks the axial positioning portion 22, so that the first funnel-shaped housing 11 and the second funnel-shaped housing 21 are not axially separated, i.e., the land vehicle body system and the aircraft system are not axially separated after being mated. The first funnel-shaped shell 11 is provided with at least one circumferential locking hole 13, the second funnel-shaped shell 21 is provided with a circumferential locking device 23, and the circumferential locking hole 13 and the circumferential locking device 23 are matched with each other, so that the second funnel-shaped shell 21 is circumferentially locked when being matched with the inner side of the first funnel-shaped shell 11. So that the first and second hopper shells 11, 21 do not rotate circumferentially, i.e. after the land vehicle body system and the aircraft system are mated. the stability and reliability of the cooperation of the land vehicle body system and the aircraft system are improved.
In the whole working process, when the land vehicle body system and the aircraft system are required to be connected, the land vehicle body system and the aircraft system move in opposite directions, the first matching part 1 and the second matching part 2 connected to the land vehicle body system and the aircraft system move in opposite directions, and the axial positioning part 22 at the top of the second funnel-shaped shell 21 enters the first matching part 1 and moves along the inner side of the first matching part 1 to the top of the first matching part 1. When the axial positioning portion 22 passes through the opening 14, the axial locking device 12 provided on the opening 14 automatically locks the axial positioning portion 22, thereby completing the axial locking of the first and second funnel housings 11 and 21. Then, the circumferential locking holes 13 on the first funnel type housing 11 and the circumferential locking means 23 on the second funnel type housing 21 are engaged with each other, so that the first and second funnel type housings 11 and 21 are automatically circumferentially locked. When the land vehicle body system and the aircraft system need to be separated, the circumferential locking of the first funnel type housing 11 and the second funnel type housing 21 is released through the circumferential locking device 23, and then the axial locking of the first funnel type housing 11 and the second funnel type housing 21 is released through the axial locking device 12, so that the locking of the land vehicle body system and the aircraft system is completely released. The land-air vehicle locking device provided by the invention has the advantages that the structure is simple and compact, accurate matching can be realized under dynamic conditions, the land-air vehicle locking device is flexible and convenient to use due to the automatic axial locking and automatic circumferential locking functions, the land-air vehicle system and the aircraft system are rapidly matched and separated, and the stability and reliability of the matching of the land-air vehicle system and the aircraft system are improved through the axial locking and the circumferential locking of the land-air vehicle locking device.
Embodiment two:
See fig. 1-14. On the basis of the first embodiment, the axial positioning part 22 comprises an axial positioning rod 24 and an axial positioning head 25, the top of the second funnel-shaped shell 21 is provided with the axial positioning rod 24, the top of the axial positioning rod 24 is provided with the axial positioning head 25, and the axial positioning head 25 gradually increases from top to bottom. As is apparent from the above structure, the axial positioning rod 24 is attached to the top of the second funnel-shaped housing 21, and supports the axial positioning head 25. The axial positioning head 25 becomes progressively larger from top to bottom, enabling the axial positioning head 25 to be more easily guided inside the first funnel shaped housing 11 and aligned with the opening 14. The diameter of the bottom of the axial positioning head 25 is larger than that of the axial positioning rod 24, so that when the axial positioning rod 24 passes through the opening 14, the axial locking device 12 is clamped below the axial positioning head 25, the axial positioning head 25 cannot be separated from the opening 14 downwards, and after the first funnel-shaped shell 11 and the second funnel-shaped shell 21 are matched in place, the axial positioning head 25 cannot move upwards any more, and therefore the axial locking of the axial positioning part 22 is achieved, and the first funnel-shaped shell 11 and the second funnel-shaped shell 21 cannot be separated axially.
Embodiment III:
See fig. 1-14. On the basis of the second embodiment, the axial positioning portion 22 further comprises a spherical hinge 26, a first spring and a limiting plate 27, the axial positioning head 25 is hinged to the top of the axial positioning rod 24 through the spherical hinge 26, the limiting plate 27 is arranged on the top of the axial positioning rod 24, the limiting plate 27 is used for limiting the overturning angle of the axial positioning head 25, and the first spring is used for enabling the axial positioning rod 24 to have a tendency of being ejected towards the top of the second funnel-shaped shell 21. As can be seen from the above structure, the axial positioning head 25 is hinged to the top of the axial positioning rod 24 by the spherical hinge 26, so that the axial positioning head 25 can freely turn over on the spherical hinge 26, and when the axial positioning head 25 touches the inner side of the first funnel-shaped housing 11 or the axial locking device 12, the position can be automatically adjusted, thereby facilitating the axial positioning head to quickly pass through the opening 14. The top of the axial positioning rod 24 is provided with a limiting plate 27, and the limiting plate 27 can limit the overturning angle of the axial positioning head 25 and prevent the positioning head 25 from being overturned excessively. The first spring enables the axial positioning rod 24 to be arranged at the top of the second funnel-shaped shell 21 in a telescopic way, when the axial positioning head 25 touches the inner side of the first funnel-shaped shell 11 or the axial locking device 12, the axial positioning head 25 can transmit axial impact to the axial positioning rod 24, so that the axial impact is absorbed by the first spring, the impact force of collision can be buffered to a certain extent, and the stability and the service life of the axial positioning part 22, the axial locking device and the first funnel-shaped shell 11 are improved. And the axial positioning part 22 is not located at the center of the first funnel-shaped shell 11 and moves forward, and then the axial positioning part can turn along the inner wall of the first funnel-shaped shell 11, and the first spring enables the axial positioning rod 24 to be telescopic, so that the first funnel-shaped shell 11 and the second funnel-shaped shell 21 are in guide fit with each other, the axial positioning part 22 returns to the center of the first funnel-shaped shell 11 to move forward quickly, and the axial positioning part is inserted into the opening 14, and quick and accurate positioning is realized.
The axial locking device 12 comprises a bottom plate 15 and a plurality of blades 16, wherein the blades 16 are rotatably arranged on the bottom plate 15 through a blade shaft, an opening 14 is formed in the center of the bottom plate 15, the blades 16 uniformly encircle the opening 14, limiting parts corresponding to the blades 16 one by one are arranged on the bottom plate 15, torsion springs are arranged on the blade shaft and used for driving the blades 16 to abut against the limiting parts so that the blades 16 cover the opening 14, and one end of the bottom of each blade 16 is provided with a guide surface. According to the structure, the blades 16 are rotatably arranged on the bottom plate 15 through the blade shafts, the bottom plate 15 is arranged at the top of the first funnel-shaped shell 11, the torsion springs are arranged on the blade shafts, the blades 16 rotate under the action of the torsion springs, the limiting parts on the bottom plate 15 are used for limiting the rotation of the blades 16, and therefore the blades 16 are just blocked on the opening 14 under the combined action of the torsion springs and the limiting parts, and the opening 14 is made smaller. The blades 16 evenly surround the opening 14, conceal the opening 14 but do not completely cover the opening 14, facilitate passage of the axial positioning head 25 through the opening 14, and also lock the axial positioning portion 22 after it passes through the opening 14. One end of the bottom of the blade 16 is provided with a guide surface, when the axial positioning head 25 touches the guide surface of the bottom of the blade 16 to move upwards, thrust is generated on the guide surface, the blade 16 is pushed to rotate against the torsion force of the torsion spring, a passive opening state is formed, and the axial positioning head 25 is allowed to pass through the opening 14 in the center of the bottom plate 15. When the axial positioning head 25 passes through the opening 14, the blade 16 is rotated and reset under the action of the torsion spring, and is restored to a closed state, and is propped against the limiting part again, and is blocked under the axial positioning head 25 to form locking, so that automatic axial locking is completed.
The axial locking device 12 further comprises a driving motor, a driving gear 17 and a driving ring 18, wherein the driving ring 18 is rotatably arranged on the bottom plate 15, a plurality of inner arc racks 19 which are spaced mutually are arranged on the inner periphery of the driving ring 18, driven wheels 31 are arranged on the blade shafts, a section of first arc racks 32 are arranged on the outer periphery of the driven wheels 31, the first arc racks 32 are in one-to-one correspondence with the inner arc racks 19, outer arc racks 33 meshed with the driving gear 17 are arranged on the outer periphery of the driving ring 18, and the driving motor is used for driving the driving gear 17 to enable the driving ring 18 to rotate positively and negatively. According to the structure, the annular groove is formed in the bottom plate 15, the driving ring 18 is arranged in the annular groove and can rotate on the bottom plate 15, the outer arc-shaped rack 33 meshed with the driving gear 17 is arranged on the periphery of the driving ring 18, and when the driving motor drives the driving gear 17 to rotate positively and negatively, the driving gear 17 drives the driving ring 18 to rotate positively and negatively. The inner circumference of the driving ring 18 is provided with a plurality of inner arc racks 19 spaced apart from each other, for example, 6 inner arc racks 19 are provided on the inner circumference of the driving ring 18, and the 6 inner arc racks 19 are spaced apart from each other, and no tooth portion is provided in the interval. The driven wheels 31 are arranged on the blade shafts, the first arc-shaped racks 32 which are in one-to-one correspondence with the inner arc-shaped racks 19 are arranged on the outer circumferences of the driven wheels 31, the number of the driven wheels 31 and the number of the inner arc-shaped racks 19 are in one-to-one correspondence, 6 inner arc-shaped racks 19 are arranged on the inner circumferences of the driving rings 18, and then the number of the driven wheels 31 is 6. The driven wheel 31 periphery is equipped with one section first arc rack 32, and when driven wheel 18 rotation in-process, driven wheel 31 is located between two interior arc racks 19, and driven wheel 31 rotation can not be driven through first arc rack 32 to drive the driven wheel 18, and when driven wheel 31 is located corresponding interior arc rack 19, driven wheel 18 can be through interior arc rack 19 meshing corresponding first arc rack 32 drive driven wheel 31 rotation. The axial locking device 12 has an axial automatic locking state and an axial active unlocking state, when the axial automatic locking state is adopted, the driven wheel 31 is positioned between the two inner arc racks 19, when the axial positioning head 25 touches the guide surface at the bottom of the blade 16 to move upwards continuously, thrust is generated on the guide surface, the blade 16 is pushed to overcome the torsion rotation of the torsion spring, the blade 16 rotates anticlockwise with the blade shaft as the center to form a passive opening state, the axial positioning head 25 is allowed to pass through the opening 14 in the center of the bottom plate 15, and the driven wheel 31 is positioned between the two inner arc racks 19, so that the blade 16 rotates to drive the blade shaft and the driven wheel 31 to rotate, the first arc rack 32 of the driven wheel 31 cannot contact the inner arc racks 19, and the driving ring 18 cannot be interfered, thereby realizing automatic axial locking. When in an axial active unlocking state, the driving motor drives the driving gear 17, the driving gear 17 drives the driving ring 18 to rotate anticlockwise, the first arc-shaped rack 32 is meshed with the corresponding inner arc-shaped rack 19, and accordingly the driving ring 18 rotates to drive the driven wheel 31 to rotate anticlockwise, so that the plurality of blades 16 rotate anticlockwise, the opening 14 is actively opened, and the axial positioning head 25 is unlocked. The axial locking device 12 can realize automatic locking and active unlocking of the axial positioning part 22, and realizes flexible switching of the air-ground mode.
The circumferential locking device 23 comprises at least one circumferential locking mechanism 28, the circumferential locking mechanism 28 comprises circumferential locking blocks 29 and second springs 41, through holes 42 which are in one-to-one correspondence with the circumferential locking holes 13 are formed in the second funnel-shaped shell 21, the circumferential locking blocks 29 are hinged to the through holes 42, and the second springs 41 are used for driving the circumferential locking blocks 29 to cover the through holes 42 from the inner side so that the circumferential locking blocks 29 protrude out of the outer surface of the second funnel-shaped shell 21. As can be seen from the above structure, one end of the circumferential locking piece 29 is hinged to the through hole 42 and connected to the second funnel-shaped housing 21, and the other end is connected to the edge of the through hole 42 through the second spring 41 and protrudes from the outer surface of the second funnel-shaped housing 21 through the through hole 42 under the tensile force of the second spring 41. When the through hole 42 on the second funnel type housing 21 is not rotated to overlap with the circumferential locking hole 13 on the first funnel type housing 11, the inner wall of the first funnel type housing 11 presses the circumferential locking block 29, the circumferential locking block 29 overcomes the tensile force of the second spring 41 and cannot protrude out of the through hole 42, when the through hole 42 on the second funnel type housing 21 is rotated to overlap with the circumferential locking hole 13 on the first funnel type housing 11, the circumferential locking block 29 ejects out under the action of the second spring 41, and the circumferential locking block 29 is clamped on the through hole 42 and the circumferential locking hole 13, so that the second funnel type housing 21 and the first funnel type housing 11 cannot rotate relatively in the circumferential direction, and the circumferential automatic locking is completed.
The circumferential locking device 23 further comprises a central shaft 43 and an up-down driving mechanism, the central shaft 43 is fixed at the center of the second funnel-shaped shell 21, a movable sleeve 44 is sleeved on the central shaft 43, the movable sleeve 44 is driven by the up-down driving mechanism to move up and down along the central shaft 43, the circumferential locking mechanism 28 further comprises a connecting rod 45 and a connecting sleeve 46, one end of the connecting rod 45 is hinged to the movable sleeve 44, the other end of the connecting rod is sleeved with the connecting sleeve 46, a telescopic allowance is reserved between the connecting sleeve 46 and the connecting rod 45, and the connecting sleeve 46 is hinged to the circumferential locking block 29. As can be seen from the above structure, the movable sleeve 44 is sleeved on the central shaft 43, and the up-and-down driving mechanism can drive the movable sleeve 44 to move up and down along the central shaft 43. One end of the connecting rod 45 is hinged to the moving sleeve 44, and when the moving sleeve 44 moves up and down along the central shaft 43, one end of the connecting rod 45 moves up and down. The other end of the connecting rod 45 is sleeved with a connecting sleeve 46, and a telescopic allowance is arranged between the connecting sleeve 46 and the connecting rod 45, so that the other end of the connecting rod 45 can move back and forth inside the connecting sleeve 46. The circumferential locking device 23 has a circumferential automatic locking state and a circumferential active unlocking state, when the circumferential automatic locking state is in, the first funnel type shell 11 and the second funnel type shell 21 are in transition from separation to matching, the circumferential locking block 29 passes through the through hole 42 under the action of the tension force of the second spring 41 and protrudes out of the outer surface of the second funnel type shell 21, because the connecting sleeve 46 is hinged to the circumferential locking block 29, and at the moment, the circumferential locking block 29 drives the connecting sleeve 46 to be far away from the connecting rod 45. When the first funnel type housing 11 overlaps the second funnel type housing 21 but the through hole 42 on the second funnel type housing 21 does not overlap the circumferential locking hole 13 on the first funnel type housing 11, the inner wall of the first funnel type housing 11 presses the circumferential locking piece 29, the circumferential locking piece 29 is retracted inward toward the second funnel type housing 21 by the pressure of the first funnel type housing 11, and the connecting sleeve 46 is pushed to approach the connecting rod 45, and the connecting sleeve 46 is not pushed to approach the connecting rod 45 due to the expansion margin between the connecting sleeve 46 and the connecting rod 45. When the through hole 42 on the second funnel type housing 21 rotates to overlap with the circumferential locking hole 13 on the first funnel type housing 11, the circumferential locking block 29 pops up under the action of the second spring 41 and drives the connecting sleeve 46 to be far away from the connecting rod 45, and as the expansion allowance exists between the connecting sleeve 46 and the connecting rod 45, the connecting rod 45 is not pulled when the connecting sleeve 46 is close to the connecting rod 45, free retraction and ejection of the circumferential locking block 29 are realized, the circumferential locking block 29 is clamped on the through hole 42 and the circumferential locking hole 13, and the second funnel type housing 21 and the first funnel type housing 11 cannot rotate relatively in the circumferential direction, so that circumferential automatic locking is completed. At this time, the circumferential active locking state can be started, that is, the up-down driving mechanism drives the moving sleeve 44 to move downwards and drives the connecting rod 45 to move, the other end of the connecting rod 45 does not apply force to the connecting sleeve 46 due to the expansion allowance, the moving sleeve 44 continues to move downwards until the expansion allowance is insufficient, at this time, the connecting rod 45 props against the circumferential locking block 29 through the connecting sleeve 46, the circumferential locking block 29 is ensured not to trip, and the stability and reliability of the circumferential locking of the land vehicle body system and the aircraft system are improved. When the movable sleeve 44 is in the circumferential active unlocking state, the up-down driving mechanism drives the movable sleeve 44 to move upwards and drives the connecting rod 45 to move, the connecting rod 45 can not drive the connecting sleeve 46 at first due to the expansion allowance, the movable sleeve 44 continues to move upwards until the expansion allowance is insufficient, at this time, the connecting sleeve 46 is pulled by the connecting rod 45, and then the circumferential locking block 29 is driven, when the connecting sleeve 46 generates a pulling force on the circumferential locking block 29 which is larger than that of the second spring 41, the circumferential locking block 29 retracts into the second funnel-shaped shell 21, and thus the circumferential locking is released. The present circumferential locking device 23 can realize automatic locking and active unlocking of the first and second funnel type housings 11 and 21, and flexible switching of the air-ground mode.
The circumferential locking means 23 further comprises a rotating electric machine for driving the central shaft 43 in rotation. As is clear from the above-described structure, when the first and second funnel housings 11 and 21 are circumferentially locked, the first and second funnel housings 11 and 21 are close to each other, but the circumferential locking hole 13 in the first funnel housing 11 and the through hole 42 in the second funnel housing 21 do not necessarily overlap exactly. The rotating motor drives the central shaft to rotate, drives the second matching part 2 to integrally rotate until the circumferential locking hole 13 on the first funnel-shaped shell 11 is overlapped with the through hole 42 on the second funnel-shaped shell 21, and the circumferential locking block 29 pops up under the action of the second spring 41, so that the circumferential automatic locking is realized.
The first funnel-shaped shell 11 is provided with at least two layers of circumferential locking holes 13 at different height positions, each layer of circumferential locking holes 13 is provided with a plurality of circumferential locking holes 13, and the circumferential locking holes 13 of different layers are staggered. As can be seen from the above structure, the first funnel-shaped housing 11 is provided with at least two layers of circumferential locking holes 13 at different height positions, and each layer has a plurality of circumferential locking holes 13, so that when the first fitting portion 1 integrally rotates, the circumferential locking holes 13 on the first funnel-shaped housing 11 can be aligned and overlapped with the through holes 42 on the second funnel-shaped housing 21 rapidly. The circumferential locking holes 13 of different layers are staggered, and after the first funnel type shell 11 and the second funnel type shell 21 are locked in the circumferential direction, the stress distribution of the first funnel type shell 11 and the second funnel type shell 21 is more uniform due to multi-point locking, so that the stability of the locking device is improved.
The first matching part 1 further comprises a fixed seat 51 and a plurality of telescopic rods 52, the first funnel-shaped shell 11 comprises a plurality of curved surface units 53, the curved surface units 53 are in one-to-one correspondence with the telescopic rods 52, the tops of the curved surface units 53 are hinged with the fixed seat 51, one end of each telescopic rod 52 is hinged with the fixed seat 51, and the other end of each telescopic rod is hinged with the corresponding curved surface unit 53. As can be seen from the above structure, the first funnel-shaped housing 1 is formed by a plurality of curved surface units 53, one end of each curved surface unit 53 is hinged on the fixing seat 51, the other end of each curved surface unit 53 is hinged with the corresponding telescopic rod 52, and the curved surface units 53 can be driven to turn over when the telescopic rod 52 stretches. When the first funnel-shaped shell 11 and the second funnel-shaped shell 21 need to be connected in a matched mode, the telescopic rod 52 is contracted to drive the curved surface unit 53 to open, so that the bottom of the first funnel-shaped shell 11 presents a larger matching area, when the second funnel-shaped shell 21 approaches the first funnel-shaped shell 11, the top of the second funnel-shaped shell 21 enters the inner side of the first funnel-shaped shell 11 more easily, and then the telescopic rod 52 is stretched to drive the curved surface unit 53 to close, and connection is completed. The first funnel type housing 11 can play a guiding role on the second funnel type housing 21, so that the second funnel type housing 21 moves along the inner side of the first funnel type housing 11 to the top of the first funnel type housing 11, and the first funnel type housing 11 and the second funnel type housing 21 are accurately matched and connected in a moving state.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.