Disclosure of Invention
The invention aims to provide a rogowski coil electric energy meter and a limiting mechanism thereof so as to solve the technical problems.
In order to achieve the above purpose, the limiting mechanism of the Rogowski coil electric energy meter comprises a driving base, wherein a puncture sensor is arranged in the middle of the driving base, a limiting ring used for fixing a cable to be tested is arranged on the upper end face of the driving base, the limiting ring is arranged in a C shape, a winding mechanism is embedded in the inner wall of the limiting ring in a rotating mode, the puncture sensor penetrates through the limiting ring and extends to the inside of the limiting ring, and a sealing mechanism used for winding the surface of the cable to be tested is arranged on the winding mechanism.
Further, the front end face of the driving base is provided with a detection coil, and the cable to be tested is fixedly limited at the center of the detection coil through the driving base.
As a further scheme of the invention, the winding mechanism comprises two groups of movable rings and connecting sheets, wherein the movable rings are arranged in a C shape, the two groups of movable rings are connected through the connecting sheets, a puncture groove matched with the puncture sensor is formed between the movable rings, the connecting sheets are provided with inclined surface parts abutted against the puncture sensor, and the movable rings are driven to rotate by a driving base.
As a further scheme of the invention, the sealing mechanism comprises a laminating pressing plate and an insulating adhesive tape, wherein the laminating pressing plate is fixedly connected to the inner wall of the movable ring, one end of the laminating pressing plate, which is away from the movable ring, is elastically laminated with the cable to be tested, one end of the insulating adhesive tape is wound inside the movable ring, and one end of the insulating adhesive tape, which is away from the movable ring, extends between the laminating pressing plate and the cable to be tested.
As a further scheme of the invention, two groups of the laminating pressing plates are arranged, the two groups of the laminating pressing plates are symmetrically arranged at the bottom of the inner wall of the movable ring, and one side of the laminating pressing plate is fixedly provided with a cutting blade.
Further, the spacing ring includes upper seal ring, lower seal ring and rotation connecting piece, lower seal ring fixed connection is at the up end of drive base, upper seal ring rotates the up end of connecting at lower seal ring through rotating the connecting piece, the terminal surface of expansion ring is equipped with spacing slide bar, upper seal ring and lower seal ring are equipped with the groove with spacing slide bar looks adaptation, through being equipped with upper seal ring and lower seal ring, rotate the connecting piece and can be the elastic hinge for the upper seal ring can be opened and be convenient for wait to survey the placing of cable, makes the spacing ring can remove the limit that the spacing ring breach was treated the cable diameter, and the expansion ring also can be along with upper seal ring and lower seal ring disconnection setting, and the disconnection department is through the magnetic structure actuation.
As a further scheme of the invention, a winding rod for winding the insulating adhesive tape is arranged in the movable ring, the laminating pressing plate comprises a fixed base and a supporting plate, the fixed base is fixedly connected to the inner wall of the movable ring, and the supporting plate is elastically embedded in the supporting plate.
As a further scheme of the invention, the driving base comprises a driving base main body, a driving rotating rod and driving rollers, wherein the driving base main body is fixedly connected to the bottom of the limiting ring, the driving rotating rod is rotatably arranged in the driving base main body, the driving rollers are rotatably arranged in the driving base main body and are attached to the edges of the movable ring, and the driving rotating rod drives the driving rollers to rotate through a driving mechanism.
As a further scheme of the invention, the driving rollers are provided with two groups of symmetrically arranged inside the driving base body, the driving rollers are transmitted through the driving belt, and the driving belt is attached to the outer end face of the movable ring.
Further, a driving wheel matched with the driving belt is arranged on the side end face of the driving roller and used for limiting the driving belt.
As a further scheme of the invention, the driving mechanism comprises a first bevel gear, a driving rod, a coil spring, a rotating ring and a second bevel gear, wherein the first bevel gear is fixedly connected to the end part of the driving rotating rod, the second bevel gear is meshed with the first bevel gear, the second bevel gear drives the driving rod to rotate, the driving rod is connected with the rotating ring, and the rotating ring drives the driving roller to rotate through a transmission piece.
Further, a driving wheel matched with a driving part is arranged at the top of the driving roller, and the driving part can be a driving belt or a chain and the like.
As a further scheme of the invention, a sleeve joint groove is formed in the driving rotating rod, the puncture sensor is in sliding sleeve joint with the sleeve joint groove, a limiting block is arranged on the side end face of the puncture sensor, and a sliding groove matched with the limiting block is formed in the inner wall of the driving base body.
As a further scheme of the invention, the second bevel gear is driven in one direction with the driving rod through the one-way limiting mechanism, the driving rod is elastically connected with the rotating ring through the coil spring, the bottom of the rotating ring is elastically embedded with the clamping plate, and the side end face of the puncture sensor is provided with a limiting clamping groove matched with the clamping plate.
A rogowski coil electric energy meter comprises the limiting structure for limiting a cable to be tested.
When the device is used, the cable to be tested is placed in the middle of the limiting ring and limited through the limiting ring, so that the cable to be tested penetrates into the center of the detection coil, the puncture sensor is arranged on the driving base and stretches out of the inside of the limiting ring to puncture the insulating layer of the cable to be tested for detection, after detection, the puncture sensor withdraws and the surface of the cable to be tested is damaged, a winding mechanism is arranged for avoiding the subsequent influence of the damaged position on the cable to be tested, and the winding mechanism is used for winding the surface of the cable to be tested by driving the closing mechanism to close the damaged position of the surface of the cable to be tested while rotating around the inner wall of the limiting ring under the driving of the driving base.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the invention with the detection coil removed;
FIG. 3 is a schematic view of the winding mechanism of the present invention;
FIG. 4 is a schematic view of the movable ring structure of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4A in accordance with the present invention;
FIG. 6 is a schematic view of the drive base structure of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6B in accordance with the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 6C in accordance with the present invention;
FIG. 9 is a schematic view of the driving roller structure of the present invention;
FIG. 10 is a schematic view of the internal structure of the drive pawl of the present invention;
FIG. 11 is an enlarged schematic view of the structure of FIG. 10D in accordance with the present invention;
FIG. 12 is a schematic view of a rotating ring structure of the present invention;
Fig. 13 is a schematic cross-sectional view of a drive turning rod according to the present invention.
The device comprises a1, a limiting ring, a2, a closing mechanism, a3, a winding mechanism, a 4, a puncture sensor, a 5, a driving base, a 6, a detection coil, a7, an upper sealing ring, an 8, a puncture groove, a 9, a connecting sheet, a10, a movable ring, a 11, a lower sealing ring, a 12, a rotary connecting piece, a 13, a laminating pressing plate, a 14, an insulating adhesive tape, a 16, a limiting slide rod, a 17, a bevel part, a 18, a cutting blade, a 19, a piece to be tested, a 20, a driving base body, a 21, a driving rotating rod, a 22, a driving roller, a 23, a winding rod, a 24, a fixed base, a 25, a supporting plate, a 26, a driving belt, a 27, a first bevel gear, a 28, a driving rod, a 29, a coil spring, a 30, a rotary ring, a 31, a driving piece, a 32, a driving wheel, a 33, a driving wheel, a 34, a limiting clamping groove, a 35, a sleeve groove, a 36, a second bevel gear, a 37, a unidirectional limiting mechanism, a 38, a clamping plate, a 39 and a limiting block.
Detailed Description
Example 1
As shown in fig. 1-2, a spacing mechanism of rogowski coil electric energy meter comprises a driving base 5, wherein a puncture sensor 4 is arranged in the middle of the driving base 5, a spacing ring 1 for fixing a cable 19 to be tested is arranged on the upper end surface of the driving base 5, the spacing ring 1 is arranged in a 'C' -shape, a winding mechanism 3 is embedded in the inner wall of the spacing ring 1 in a rotating manner, the puncture sensor 4 penetrates through the spacing ring 1 and extends to the inside of the spacing ring 1, and a sealing mechanism 2 for winding the surface of the cable 19 to be tested is arranged on the winding mechanism 3.
Further, the front end face of the driving base 5 is provided with a detection coil 6, and the cable 19 to be tested is fixedly limited at the center of the detection coil 6 through the driving base 5.
When the device is used, the cable 19 to be tested is placed in the middle of the limiting ring 1, the cable 19 to be tested is limited through the limiting ring 1, so that the cable 19 to be tested penetrates into the center of the detection coil 6, the puncture sensor 4 is arranged in the driving base 5, the puncture sensor 4 stretches out from the inside of the limiting ring 1 to puncture the insulating layer of the cable 19 to be tested, after detection, the surface of the cable 19 to be tested is damaged when the puncture sensor 4 withdraws, the winding mechanism 3 is arranged to avoid the subsequent influence of the damaged part to be tested 19, and the winding mechanism 3 is used for winding the surface of the cable 19 to be tested while driving the sealing mechanism 2 to rotate around the inner wall of the limiting ring 1 under the driving of the driving base 5, so that the damaged part on the surface of the cable 19 to be tested is sealed.
Example two
On the basis of the first embodiment, as shown in fig. 1-4, the winding mechanism 3 comprises two groups of movable rings 10 and connecting pieces 9, the movable rings 10 are arranged in a C shape, the two groups of movable rings 10 are connected through the connecting pieces 9, a puncture groove 8 matched with the puncture sensor 4 is formed between the movable rings 10, the connecting pieces 9 are provided with inclined surface parts 17 abutted against the puncture sensor 4, and the movable rings 10 are driven to rotate by the driving base 5.
During the use, in order to avoid waiting to survey cable 19 to deviate from the breach of spacing ring 1 in the puncture process, and then be equipped with expansion ring 10, expansion ring 10 is "C" shape setting, expansion ring 10 is equipped with the same breach with spacing ring 1, and then make the middle part convenient operation that waiting to survey cable 19 accessible breach department directly put into spacing ring 1, stretch out the inside that gets into puncture groove 8 and support with connection piece 9 at puncture sensor 4 by the inside of driving base 5, under the effect of inclined plane portion 17, along with the stretching out of puncture sensor 4 will make expansion ring 10 rotate one section, and then seal the breach department of spacing ring 1 through expansion ring 10, avoid waiting to survey the removal of cable 19 in the puncture in-process.
As shown in fig. 1-5, the closing mechanism 2 includes a laminating pressing plate 13 and an insulating tape 14, the laminating pressing plate 13 is fixedly connected to the inner wall of the movable ring 10, one end of the laminating pressing plate 13, which is away from the movable ring 10, is elastically laminated with the cable 19 to be tested, one end of the insulating tape 14 is wound inside the movable ring 10, and one end of the insulating tape 14, which is away from the movable ring 10, extends between the laminating pressing plate 13 and the cable 19 to be tested.
When the puncture sensor 4 is used, the insulating tape 14 is arranged between the laminating pressing plate 13 and the cable 19 to be tested and is adhered to the surface of the cable 19 to be tested, the movable ring 10 extends out of the puncture sensor 4 to rotate around the part of the cable 19 to be tested, so that the insulating tape 14 is adhered to the bottom of the cable 19 to be tested, meanwhile, the insulating tape 14 is further fixed with the cable 19 to be tested along with the puncture of the puncture sensor 4, when the detection is completed, after the puncture sensor 4 is withdrawn, the movable ring 10 rotates around the cable 19 to be tested under the drive of the drive base 5, and then the insulating tape 14 is wound around the surface of the cable 19 to be tested rapidly, so that the damaged part caused by the puncture of the puncture sensor 4 is closed rapidly.
As shown in fig. 1-7, two groups of laminating pressing plates 13 are provided, the two groups of laminating pressing plates 13 are symmetrically arranged at the bottom of the inner wall of the movable ring 10, and a cutting blade 18 is fixedly arranged at one side of the laminating pressing plate 13.
When the device is used, the laminating pressing plates 13 are provided with two groups and are oppositely and symmetrically arranged, so that the laminating pressing plates 13 can laminate part of the insulating adhesive tape 14 to the bottom of the cable 19 to be tested when being attached to the cable 19 to be tested, the insulating adhesive tape 14 can be arranged on the cable 19 to be tested, which can keep the penetrating part in the penetrating process of the penetrating sensor 4, the end part of the insulating adhesive tape 14 is further fixed between the end part of the insulating adhesive tape 14 and the cable 19 to be tested, one side of the laminating pressing plates 13 is provided with the cutting blade 18, the cable 19 to be tested is conveniently separated from the insulating adhesive tape 14, after the movable ring 10 rotates to wind the cable 19 to be tested, the cable 19 to be tested moves towards the cutting blade 18 through pressing, and the insulating adhesive tape 14 wound on the surface of the cable 19 to be tested is cut off under the action of the cutting blade 18, so that the cable 19 to be tested can be conveniently taken out after being closed.
Further, the spacing ring 1 includes upper seal ring 7, lower seal ring 11 and rotation connecting piece 12, lower seal ring 11 fixed connection is at the up end of driving base 5, upper seal ring 7 rotates the up end of connecting at lower seal ring 11 through rotation connecting piece 12, the terminal surface of expansion ring 10 is equipped with spacing slide bar 16, upper seal ring 7 and lower seal ring 11 are equipped with the groove with spacing slide bar 16 looks adaptation, through being equipped with upper seal ring 7 and lower seal ring 11, rotation connecting piece 12 can be the elastic hinge, make upper seal ring 7 openable be convenient for wait to survey the placing of cable 19, make spacing ring 1 can relieve spacing ring 1 breach and wait to survey the restriction of cable 19 diameter, and expansion ring 10 also can be along with upper seal ring 7 and lower seal ring 11 disconnection setting, the disconnection department is through the suction of magnetism structure.
As shown in fig. 1-7, the movable ring 10 is provided with a winding rod 23 for winding the insulating tape 14, the laminating pressing plate 13 comprises a fixed base 24 and an abutting plate 25, the fixed base 24 is fixedly connected to the inner wall of the movable ring 10, and the abutting plate 25 is elastically embedded in the abutting plate 25.
When the insulation tape 14 is used, the abutting plate 25 is elastically embedded in the fixed base 24, the cable 19 to be tested is abutted and limited through the elastic force between the abutting plate and the fixed base 24, the winding rod 23 can be arranged in the movable ring 10 and the connecting sheet 9 in an assembled mode, the insulation tape 14 can be conveniently replaced after being used up, and the width of the insulation tape 14 is flush with the edges of the two groups of movable rings 10, so that the insulation tape 14 can be more comprehensively covered on the damaged part of the cable 19 to be tested.
As shown in fig. 1-8, the driving base 5 includes a driving base main body 20, a driving rotating rod 21 and a driving roller 22, the driving base main body 20 is fixedly connected to the bottom of the limiting ring 1, the driving rotating rod 21 is rotatably arranged in the driving base main body 20, the driving roller 22 is rotatably arranged in the driving base main body 20 and is attached to the edge of the movable ring 10, and the driving rotating rod 21 drives the driving roller 22 to rotate through a driving mechanism.
When the cable 19 winding device is used, the driving rotating rod 21 drives the driving roller 22 to rotate through the driving mechanism, the edge of the driving roller 22 is attached to the outer end face of the movable ring 10, and accordingly the movable ring 10 can be driven to rotate in the limiting ring 1 through the rotation of the driving roller 22, and the movable ring 10 can drive the closing mechanism 2 to wind the cable 19.
As shown in fig. 1-6 and fig. 8-9, the driving rollers 22 are provided with two groups of symmetrically arranged inside the driving base main body 20, the driving rollers 22 are driven by the driving belt 26, and the driving belt 26 is attached to the outer end surface of the movable ring 10.
Further, the side end surface of the driving roller 22 is provided with a driving wheel 33 adapted to the driving belt 26 for limiting the driving belt 26.
When the movable ring 10 is in use, because the movable ring 10 is of a C-shaped structure, a single driving roller 22 at a notch is difficult to drive, so that the movable ring 10 cannot continuously rotate, the movable ring 10 is driven to rotate by friction of the driving belt 26 through the driving belt 26 arranged between the two groups of driving rollers 22, and the problem of power shortage at the notch can be avoided due to the fact that the contact surface of the driving belt 26 is large, and further the movable ring 10 can continuously rotate under the driving of the driving rollers 22.
As shown in fig. 1 to 8 and fig. 10 to 12, the driving mechanism comprises a first bevel gear 27, a driving rod 28, a coil spring 29, a rotating ring 30 and a second bevel gear 36, wherein the first bevel gear 27 is fixedly connected to the end part of the driving rotating rod 21, the second bevel gear 36 is meshed with the first bevel gear 27, the second bevel gear 36 drives the driving rod 28 to rotate, the driving rod 28 is connected with the rotating ring 30, and the rotating ring 30 drives the driving roller 22 to rotate through a transmission piece 31.
Further, a driving wheel 32 adapted to the driving member 31 is disposed on top of the driving roller 22, and the driving member 31 may be a driving belt or a chain.
When in use, the driving rotary rod 21 synchronously drives the driving rod 28 to drive the rotating ring 30 to rotate through the first bevel gear 27 and the second bevel gear 36 while rotating, and synchronously drives the driving roller 22 to rotate through the transmission piece 31, so that the driving rotary rod 21 rotates to realize the rotation driving of the driving roller 22.
As shown in fig. 1-13, a sleeve groove 35 is formed in the driving rotating rod 21, the puncture sensor 4 is sleeved in the sleeve groove 35 in a sliding manner, a limiting block 39 is arranged on the side end face of the puncture sensor 4, a sliding groove matched with the limiting block 39 is formed in the inner wall of the driving base main body 20, and a spiral groove matched with the limiting block 39 is formed in the sleeve groove 35.
When the puncture sensor is used, the rotation of the driving rotating rod 21 is driven by the spiral groove to the limiting block 39, and meanwhile, the inner wall of the driving base main body 20 is provided with a sliding groove for limiting the rotation of the puncture sensor 4, so that the puncture sensor 4 gradually extends out of the driving rotating rod 21 and finally punctures the cable 19 to be tested.
As shown in fig. 1-13, the second bevel gear 36 is driven unidirectionally with the driving rod 28 through the unidirectional limiting mechanism 37, the driving rod 28 is elastically connected with the rotating ring 30 through the coil spring 29, a clamping plate 38 is elastically embedded in the bottom of the rotating ring 30, and a limiting clamping groove 34 matched with the clamping plate 38 is formed in the side end face of the puncture sensor 4.
When the puncture sensor 4 is extended, the clamping plate 38 and the limiting clamping groove 34 are used for clamping the rotating ring 30, the clamping plate 38 is in a straight line structure, so that the rotating ring 30 stops rotating in the extending process of the puncture sensor 4 to avoid influencing the puncture sensor 4, after the puncture sensor 4 is retracted, the limiting clamping groove 34 and the clamping plate 38 are clamped and separated along with the retraction of the puncture sensor 4, the rotating ring 30 can continuously rotate to drive the driving roller 22 to rotate to wind the moving ring 10, the second bevel gear 36 drives the driving rod 28 through the one-way limiting mechanism 37, the driving rod 28 can only rotate unidirectionally, the driving rod 28 rotates when the puncture sensor 4 is extended or retracted and is fixed due to the rotating ring 30, and then elastic potential energy of the rotating ring 29 is increased until the clamping plate 38 and the limiting clamping groove 34 are clamped and separated under the elastic force of the coil spring 29 to drive the rotating ring 30, the rotating ring 10 is driven to rotate through the rotation of the driving rod 21, and the work of the extending rotating ring 30 is completed, and the driving of the winding mechanism 2 is further completed.
A rogowski coil electric energy meter comprises the limiting structure for limiting a cable to be tested.
Working principle: the cable 19 to be tested is arranged in the middle of the limiting ring 1, the cable 19 to be tested is limited through the limiting ring 1, so that the cable 19 to be tested penetrates into the center of the detecting coil 6, the driving base 5 is further provided with the puncture sensor 4, the puncture sensor 4 stretches out from the inside of the limiting ring 1 to puncture the insulating layer of the cable 19 to be tested, after detection, the puncture sensor 4 withdraws and the surface of the cable 19 to be tested is damaged, in order to avoid the subsequent influence of the cable 19 to be tested at the damaged position, the winding mechanism 3 is provided, the winding mechanism 3 is driven to wind the surface of the cable 19 to be tested while rotating around the inner wall of the limiting ring 1 under the driving of the driving base 5, so that the damaged position of the surface of the cable 19 to be tested is sealed, in order to avoid the cable 19 to be tested from being separated from the notch of the limiting ring 1 in the puncture process, the movable ring 10 is further provided, the movable ring 10 is in a C shape, the movable ring 10 is provided with a notch which is the same as the limiting ring 1, so that the cable 19 to be tested can be directly placed in the middle of the limiting ring 1 through the notch to facilitate operation, the puncture sensor 4 stretches out of the driving base 5 into the puncture groove 8 and is propped against the connecting sheet 9, under the action of the inclined surface part 17, the movable ring 10 rotates for a section along with the stretching of the puncture sensor 4, the notch of the limiting ring 1 is further sealed through the movable ring 10, the movement of the cable 19 to be tested in the puncture process is avoided, the insulating adhesive tape 14 is arranged between the laminating pressing plate 13 and the cable 19 to be tested and is adhered to the surface of the cable 19 to be tested, the movable ring 10 rotates around the part of the cable 19 to be tested along with the stretching of the puncture sensor 4, so that the insulating adhesive tape 14 is adhered to the bottom of the cable 19 to be tested, and simultaneously the puncture sensor 4 punctures the cable 19, the insulating tape 14 is further fixed with the cable 19 to be tested along with puncture, when detection is completed, after the puncture sensor 4 exits, the movable ring 10 rotates around the cable 19 to be tested under the drive of the drive base 5, so that the insulating tape 14 is rapidly wound around the surface of the cable 19 to be tested, further, the damaged part caused by the puncture of the puncture sensor 4 is rapidly sealed, two groups of laminating press plates 13 are arranged, and the two groups of laminating press plates are symmetrically arranged relatively, so that part of the insulating tape 14 can be laminated to the bottom of the cable 19 to be tested when the laminating press plates 13 are laminated with the cable 19 to be tested, the insulating tape 14 can be arranged on the cable 19 to be tested which can keep the puncture part in the puncture process of the puncture sensor 4, the end part of the insulating tape 14 is further fixed with the cable 19 to be tested, one side of the laminating press plates 13 is provided with a cutting blade 18, in order to facilitate separation of the cable 19 to be tested from the insulating tape 14, after the movable ring 10 rotates to-be-measured cable 19 is wound, the to-be-measured cable 19 is pressed to move towards the cutting blade 18, so that the insulating adhesive tape 14 wound on the surface of the to-be-measured cable 19 is cut off under the action of the cutting blade 18, the to-be-measured cable 19 can be conveniently taken out after being closed, the abutting plate 25 is elastically embedded in the fixed base 24, the to-be-measured cable 19 is abutted and limited by the elastic force between the abutting plate and the fixed base 24, the winding rod 23 can be arranged in the movable ring 10 and the connecting sheet 9 in an assembling manner, the to-be-measured cable can be conveniently replaced after the insulating adhesive tape 14 is used up, the width of the insulating adhesive tape 14 is flush with the edges of the two groups of movable rings 10, the insulating adhesive tape 14 can be more comprehensively covered on the damaged part of the to-be-measured cable 19, the driving rotary rod 21 is driven by the driving mechanism to rotate the driving roller 22, the edge of the driving roller 22 is attached to the outer end face of the movable ring 10, the movable ring 10 can be driven to rotate in the limiting ring 1 through the rotation of the driving rollers 22, so that the movable ring 10 can drive the closing mechanism 2 to wind the cable 19, the movable ring 10 is in a C-shaped structure, the single driving roller 22 at the notch is difficult to drive, the movable ring 10 cannot rotate continuously, the driving belt 26 is arranged between the two groups of driving rollers 22, the friction of the driving belt 26 drives the movable ring 10 to rotate, the problem of power shortage at the notch can be avoided due to the large contact surface of the driving belt 26, the movable ring 10 can rotate continuously under the driving of the driving rollers 22, the driving rod 21 synchronously drives the driving rod 28 to drive the rotating ring 30 to rotate through the first bevel gear 27 and the second bevel gear 36 while rotating, and synchronously drives the driving rollers 22 to rotate through the transmission piece 31, the rotation of the driving roller 22 is realized by the rotation of the driving rotating rod 21, the puncture sensor 4 gradually extends out of the driving rotating rod 21 under the driving of the limit block 39 by the rotation of the driving rotating rod 21, the cable 19 to be tested is finally pierced, when the puncture sensor 4 extends out, the rotating ring 30 is clamped with the limit clamping groove 34 by the clamping plate 38, the clamping plate 38 adopts a straight-line structure, the rotating ring 30 stops rotating in the extending process of the puncture sensor 4 to avoid influencing the movable ring 10 on the puncture sensor 4, after the puncture sensor 4 is retracted, the limit clamping groove 34 is clamped with the clamping plate 38 along with the retraction of the puncture sensor 4, so that the rotating ring 30 can continuously rotate to drive the driving roller 22 to drive the movable ring 10 to rotate for winding, the second bevel gear 36 drives the driving rod 28 by the unidirectional limiting mechanism 37, the driving rod 28 can only rotate unidirectionally, when the puncture sensor 4 extends or retracts, the driving rod 28 rotates and is fixed by the rotating ring 30, so that the elastic potential energy of the coil spring 29 is increased until the clamping plate 38 is clamped and separated from the limiting clamping groove 34 under the elastic action of the coil spring 29 to drive the rotating ring 30 to rotate, thereby realizing the energy storage and the driving of the rotating ring 30 when the puncture sensor 4 extends through the rotation of the driving rotating rod 21, and further completing the winding work of the movable ring 10 driving the closing mechanism 2.