Semi-automatic digestive endoscope diagnosis and treatment auxiliary deviceTechnical Field
The invention relates to the technical field of medical equipment, in particular to a semi-automatic digestive endoscope diagnosis and treatment auxiliary device.
Background
A set of devices for the diagnosis and treatment of digestive system diseases by obtaining images directly through the digestive tract or by obtaining ultrasonic or X-ray images of the digestive tract and the digestive organs through devices with ultrasonic and X-rays. However, when the digestive endoscope is used, when the right hand of a doctor holding the endoscope leaves the endoscope body to carry out accessory operation, the endoscope body is easy to deviate from, change the position and the rotation direction, and the accuracy and the safety of endoscope diagnosis and treatment are greatly influenced.
The Chinese patent No. CN208876680U discloses auxiliary traction forceps for the digestive endoscopes, which structurally comprises a traction part, a hose, a handheld part, a control clamp head opening and closing part and a control clamp head rotating part, wherein one end of the hose is provided with the traction part, the other end of the hose is provided with the handheld part, and the control clamp head opening and closing part and the control clamp head rotating part are both arranged on the hose; the traction part consists of a clamp head, a connecting rod and a pin shaft; the control clamp head opening and closing component consists of a sliding handle, a spring tube, a spring, a limiting plate and a inhaul cable; the control clamp head rotating part consists of a large knob, a small knob, four fixed blocks, two turntables and a steel wire. The traction forceps can also draw lesions while clamping the lesion parts, so that the lesion parts to be stripped are better close to the electrotome, the stripping space is exposed, the difficulty of endoscopic treatment is reduced, and the efficiency of endoscopic treatment is improved. Chinese patent No. CN204427995U discloses a digestive endoscope support, which belongs to the field of medical equipment and comprises a base, be provided with the pillar on the base, the pillar is kept away from the one end of base is provided with the endoscope and presss from both sides, the endoscope presss from both sides including first arm lock and second arm lock, first arm lock and second arm lock all are semicircle annular and both cooperate and form endoscope clamping portion. The digestive endoscope support adopts the endoscope clamp to clamp and fix the insertion part of the endoscope, can be suitable for digestive endoscopes of different models and sizes, is simple and convenient to operate and good in fixing effect, and effectively overcomes the defect that the existing digestive endoscopes need to be fixed in an auxiliary mode by multiple persons.
The above-mentioned two patents all play the supporting role to the digestion scope through universal soft pole, and the doctor directly pulls universal soft pole when using the digestion scope makes its deformation can, supports and adjusts the digestion scope fast, facilitates the use, need not the handheld digestion scope of doctor. But there are the following insufficient supports during actual use. Firstly, though convenient, its fastness exists not enough in the regulation mode of universal soft pole, in case receive external force interference or the unstable accident that appears of centre gripping, very big to patient's influence, there is certain potential safety hazard, and the second, doctor is handheld digestion scope all the time in the use, and its treatment is long-duration, and long-time use digestion scope can lead to the arm to expand, and then influences going on of treatment, and digestion scope diagnosis and treat auxiliary device function singleness in above-mentioned two patents, can't help doctor alleviate the burden.
Disclosure of Invention
The invention aims to provide a semi-automatic digestive endoscope diagnosis and treatment auxiliary device, which aims to solve the technical problems that the digestive endoscope diagnosis and treatment auxiliary device in the prior art is not firmly fixed and has single function.
The invention provides a semi-automatic digestive endoscope diagnosis and treatment auxiliary device which comprises a fixing mechanism, a lifting mechanism, a rotating mechanism, an adjusting mechanism and a control mechanism, wherein the lifting mechanism is arranged at the upper end of the fixing mechanism, the rotating mechanism is arranged at the upper end of the lifting mechanism, the adjusting mechanism is arranged at the end part of the rotating mechanism, the control mechanism is arranged at the side of the adjusting mechanism, the lifting mechanism comprises a lifting assembly and a fixing assembly, the fixing assembly is arranged at the upper end of the lifting assembly, a first locking assembly and a second locking assembly are respectively arranged in the rotating mechanism and the adjusting mechanism, and the first locking assembly and the second locking assembly are both connected with the control mechanism.
Further, the lifting assembly comprises a base, a lifting column and a lifting rod, wherein the base is fixedly connected with a fixing mechanism, the lifting column is vertically arranged at the upper end of the base, the upper end of the lifting column is provided with a lifting groove, the lower part of the lifting rod is inserted into the lifting groove and is in sliding fit with the lifting groove, both sides of the middle part of the lifting rod are respectively provided with a limiting groove, and two limiting edges which are in sliding fit with the limiting grooves are arranged on the inner side wall of the lifting groove.
Further, fixed subassembly includes mounting groove, lifting rack, lift axle and lifting gear, the mounting groove is vertical setting at the middle part of lifter, lifting rack sets up in the mounting groove, the lift axle is the level setting and all rotates with the lifting column at the upper end side of lifting column and the both ends of lift axle to be connected, lifting gear cover is established on the lift axle and lifting gear and lifting rack meshing, the both ends of lifting axle all overlap and are equipped with the tight pulley, and the side of two tight pulleys all is equipped with the impeller, the upper end of lifting column is equipped with two pushing grooves, and two impeller are located two pushing grooves respectively and between the two sliding fit, every the inboard of impeller all is equipped with the friction disc with the tight pulley block.
Further, the rotating mechanism comprises a rotating arm, one end of the rotating arm is rotatably connected with the upper end of the lifting rod, and a bump is arranged on the side wall of the other end of the rotating arm.
Further, the first locking assembly comprises a locking block, a locking wheel and a locking spring, the locking wheel is sleeved at the upper end of the lifting rod, a locking groove is formed in the rotating arm, the locking block is arranged in the locking groove and is in sliding fit with the locking groove, and the locking spring is arranged in the locking groove, and two ends of the locking spring are respectively abutted against the side wall of the locking groove and one end of the locking block.
Further, friction convex lines are arranged on the side wall of the locking wheel, and clamping convex lines matched with the friction convex lines are arranged at one end of the locking block.
Further, adjustment mechanism includes bulb, ball seat and regulating block, the bulb sets up the front end at the lug, the ball seat cover is established on the bulb, regulating block and ball seat fixed connection, the middle part of regulating block is equipped with the fixed slot that is used for the block digestion scope, be equipped with the breach with the fixed slot intercommunication on the lateral wall of regulating block, be equipped with on the lateral wall of regulating block rather than screw-thread fit's fastening axle, the one end of fastening axle is equipped with fastening gasket, the other end of fastening axle is equipped with fastening knob.
Further, the second locking assembly comprises an inner groove, a limiting block and a limiting spring, the inner groove is arranged in the ball seat and the adjusting block, the limiting block is located in the inner groove and is in sliding fit with the inner groove, and the limiting spring is arranged in the inner groove, and two ends of the limiting spring are respectively abutted against the side wall of the inner groove and one end of the limiting block.
Further, control mechanism includes the control lever, the control lever is installed in the side of regulating block, the upper end of control lever is equipped with first pressing block and second pressing block, first pressing block and second pressing block's middle part all is equipped with the axis of rotation, first pressing block and second pressing block rotate with the control lever through two axes of rotation respectively and are connected, first pressing block and second pressing block's one end all extends to the outside of control lever, first pressing block and second pressing block's the other end is equipped with first connecting wire and second connecting wire respectively, locking spring's middle part and with locking block fixed connection are run through to first connecting wire's one end, limiting spring's middle part and with limiting block fixed connection are run through to second connecting wire's one end, first connecting wire and second connecting wire's outside all is equipped with the rubber silk cover.
Further, fixed establishment includes fixed cardboard, fixed card strip, fixed axle and fixed knob, the transversal L type that personally submits of fixed cardboard, fixed card strip is the level setting in the upper end of fixed cardboard, the lower part of fixed cardboard is equipped with the fixed orifices, the fixed axle is located the fixed orifices and screw-thread fit between the two, fixed knob sets up the lower extreme at the fixed axle, the upper end of fixed axle is equipped with the fixed block rather than rotating the connection, the upper end of fixed block is equipped with fixed gasket.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the lifting mechanism, the rotating mechanism and the adjusting mechanism are adopted to replace a universal soft rod in the prior art for adjustment, when the lifting mechanism is adjusted, the height of the lifting mechanism is adjusted in advance, then in the use process, when the rotating arm is required to be adjusted, one end of the first pressing block is pressed, the other end of the first pressing block drives the first connecting wire to pull the locking block, so that the locking spring is contracted, the locking block is separated from the locking wheel, the rotating arm can be freely rotated, when the adjusting mechanism is required to be adjusted, one end of the second pressing block is pressed, the other end of the second pressing block drives the second connecting wire to pull the limiting block to be separated from the ball head, and the adjusting mechanism can be adjusted; the adjusting mode is simple, the use of the digestive endoscope cannot be influenced, in addition, the rotating mechanism and the adjusting mechanism can be automatically fixed when the fixing rod is loosened, the use is convenient, the position of the control mechanism is reasonable, the adjusting process only needs to be pressed by fingers, the effects of controlling the endoscope body and assisting in operation can be ensured in the treatment process, and the accuracy and safety of diagnosis and treatment of the endoscope are improved.
Secondly, in the use process, the rotating arm can play a role in supporting the arm of a doctor, so that the burden of the doctor can be reduced, and the problem that the arm of the doctor is suspended for a long time and is acid-inflated to influence treatment is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a partially exploded view of the present invention;
FIG. 4 is a schematic diagram of the structure of the adjusting mechanism and the control mechanism of the present invention;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
fig. 7 is a cross-sectional view taken along line B-B of fig. 5.
Reference numerals:
The fixing mechanism 1, the fixing clamping plate 11, the fixing clamping strip 12, the fixing shaft 13, the fixing clamping plate 14, the fixing block 15, the fixing gasket 16, the lifting mechanism 2, the lifting assembly 21, the base 211, the lifting column 212, the lifting rod 213, the lifting groove 55, the limiting groove 215, the limiting rib 216, the fixing assembly 22, the lifting rack 222, the lifting shaft 223, the lifting gear 225, the pushing block 226, the pushing groove 227, the friction plate 228, the rotating mechanism 3, the rotating arm 31, the protruding block 32, the adjusting mechanism 4, the ball head 41, the ball seat 42, the adjusting block 43, the fixing groove 44, the notch 45, the fastening shaft 46, the fastening gasket 47, the fastening knob 48, the control mechanism 5, the control rod 51, the first pressing block 52, the second pressing block 53, the rotating shaft 54, the first connecting wire 55, the second connecting wire 56, the rubber sleeve 57, the first locking assembly 6, the locking block 61, the wheel 62, the locking spring 63, the second locking assembly 7, the inner groove 71, the limiting block 72, the limiting spring 73 and the friction relief 8.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 7, an embodiment of the present invention provides a semi-automatic endoscope diagnosis and treatment auxiliary device, which includes a fixing mechanism 1, a lifting mechanism 2, a rotating mechanism 3, an adjusting mechanism 4 and a control mechanism 5, wherein the lifting mechanism 2 is installed at the upper end of the fixing mechanism 1, the rotating mechanism 3 is installed at the upper end of the lifting mechanism 2, the adjusting mechanism 4 is installed at the end of the rotating mechanism 3, the control mechanism 5 is disposed beside the adjusting mechanism 4, the lifting mechanism 2 includes a lifting assembly 21 and a fixing assembly 22, the fixing assembly 22 is installed at the upper end of the lifting assembly 21, a first locking assembly 6 and a second locking assembly 7 are respectively provided in the rotating mechanism 3 and the adjusting mechanism 4, and the first locking assembly 6 and the second locking assembly 7 are both connected with the control mechanism 5; when the invention is used, the invention is fixed at the edge of a sickbed through the fixing mechanism 1, then the digestive endoscope is clamped through the adjusting mechanism 4, the digestive endoscope is moved to a designated position by the rotating mechanism 3, then the invention is used, the digestive endoscope is driven to rotate through the control mechanism 5, meanwhile, the adjusting mechanism 4 and the rotating mechanism 3 can be adjusted through the control mechanism 5, after the control mechanism 5 is released, the rotating mechanism 3 and the adjusting mechanism 4 can be respectively locked through the first locking component 6 and the second locking component 7, so that the digestive endoscope is firmly fixed, the firmness is improved, the potential safety hazard is reduced, and in the use process, the rotating mechanism 3 can be used for supporting the arm of a doctor, and the burden of the doctor can be lightened in the long-time treatment process.
Specifically, the lifting assembly 21 includes a base 211, a lifting column 212 and a lifting rod 213, the base 211 is fixedly connected with the fixing mechanism 1, the lifting column 212 is vertically disposed at the upper end of the base 211, the upper end of the lifting column 212 is provided with a lifting groove 214, the lower part of the lifting rod 213 is inserted into the lifting groove 214 and is in sliding fit with the lifting groove 214, both sides of the middle part of the lifting rod 213 are provided with limiting grooves 215, and the inner side wall of the lifting groove 214 is provided with two limiting ribs 216 in sliding fit with the limiting grooves 215; through with lifter 213 along lifter post 212 removal can drive the rotary mechanism 3 who installs in lifter 213 upper end and reciprocate to carry out altitude mixture control, can be applicable to the doctor of different heights and use, the setting of spacing groove 215 and spacing arris 216 can prevent that lifter 213 from taking place to rotate in the removal in-process, thereby influences the use of fixed subassembly 22.
Specifically, the fixing assembly 22 includes a mounting groove, a lifting rack 222, a lifting shaft 223 and a lifting gear 224, the mounting groove is vertically disposed in the middle of the lifting rod 213, the lifting rack 222 is disposed in the mounting groove, the lifting shaft 223 is horizontally disposed at the side of the upper end of the lifting column 212, two ends of the lifting shaft 223 are rotationally connected with the lifting column 212, the lifting gear 224 is sleeved on the lifting shaft 223 and the lifting gear 224 is meshed with the lifting rack 222, two ends of the lifting shaft 223 are sleeved with fixing wheels 225, pushing blocks 226 are disposed at the sides of the two fixing wheels 225, two pushing grooves 227 are disposed at the upper end of the lifting column 212, the two pushing blocks 226 are respectively disposed in the two pushing grooves 227 and are in sliding fit with each other, and friction plates 228 engaged with the fixing wheels 225 are disposed at the inner sides of the pushing blocks 226; the two pushing blocks 226 can be connected together, as shown in fig. 2, when pushing, the two pushing blocks 226 can be used for synchronous operation, the friction plate 228 is abutted against the fixed wheel 225 through the movement of the pushing blocks 226, at this time, since the force applied to the lifting rod 213 after adjustment is downward, the fixed wheel 225 can drive the friction plate 228 to move upward when rotating through transmission, at this time, the pushing blocks 226 are positioned at the uppermost part of the pushing groove 227, and then the fixed wheel 225 can be fixed, so that the lifting rod 213 cannot move downward, wherein in order to avoid the pushing blocks 226 from moving downward under the action of gravity, thereby driving the fixed wheel 225 to be unable to be fixed, a potential safety hazard exists, a magnet can be arranged in the upper ends of the two pushing blocks 226 and the upper side wall of the pushing groove 227, and when the pushing blocks 226 are positioned at the uppermost part, the lifting rod is adsorbed by the magnet to prevent the lifting rod 213 from moving downward.
Specifically, the rotation mechanism 3 includes a rotation arm 31, one end of the rotation arm 31 is rotatably connected with the upper end of the lifting rod 213, and a bump 32 is disposed on a sidewall of the other end of the rotation arm 31; the function of the bump 32 is to set the adjusting mechanism 4 to the right, so that the control mechanism 5 can be mounted at the front end of the rotating arm 31, and when the doctor's arm is placed on the rotating arm 31, the control mechanism 5 is located at the finger position, so that the discomfort of the posture is not caused.
Specifically, the first locking assembly 6 includes a locking block 61, a locking wheel 62 and a locking spring 63, the locking wheel 62 is sleeved at the upper end of the lifting rod 213, a locking groove is formed on the rotating arm 31, the locking block 61 is installed in the locking groove and is in sliding fit with the locking groove, the locking spring 63 is arranged in the locking groove, and two ends of the locking spring 63 respectively abut against the side wall of the locking groove and one end of the locking block 61; the locking spring 63 is used to press one end of the locking block 61 against the locking wheel 62, so that the rotating arm 31 is prevented from rotating continuously by friction force between the locking block and the locking wheel, and is fixed.
Specifically, the side wall of the locking wheel 62 is provided with a friction convex line 8, and one end of the locking block 61 is provided with a clamping convex line matched with the friction convex line 8; the friction force between the locking block 61 and the locking wheel 62 can be increased by the arrangement of the friction convex lines 8 and the clamping convex lines, so that the stability of the locking block is improved.
Specifically, the adjusting mechanism 4 comprises a ball head 41, a ball seat 42 and an adjusting block 43, the ball head 41 is arranged at the front end of the protruding block 32, the ball seat 42 is sleeved on the ball head 41, the adjusting block 43 is fixedly connected with the ball seat 42, a fixing groove 44 for clamping the digestive endoscope is formed in the middle of the adjusting block 43, a notch 45 communicated with the fixing groove 44 is formed in the side wall of the adjusting block 43, a fastening shaft 46 in threaded fit with the side wall of the adjusting block 43 is arranged on the side wall of the adjusting block 43, a fastening gasket 47 is arranged at one end of the fastening shaft 46, and a fastening knob 48 is arranged at the other end of the fastening shaft 46; the fixed slot 44 is used for being inserted into the grab handle of the lower part of the digestion endoscope, the notch 45 is used for facilitating the connecting line at the lower end of the digestion endoscope to enter the fixed slot 44, the fastening shaft 46 is rotated by rotating the fastening knob 48, the digestion endoscope is fixed by being pressed by the fastening gasket 47, and the friction force between the fastening shaft 46 and the digestion endoscope can be increased by the fastening gasket 47, so that the digestion endoscope is protected from being damaged.
Specifically, the second locking assembly 7 includes an inner groove 71, a limiting block 72 and a limiting spring 73, the inner groove 71 is disposed in the ball seat 42 and the adjusting block 43, the limiting block 72 is disposed in the inner groove 71 and is in sliding fit with the inner groove 71, the limiting spring 73 is mounted in the inner groove 71, and two ends of the limiting spring 73 respectively abut against a side wall of the inner groove 71 and one end of the limiting block 72; one end of the restriction block 72 is pressed against the ball 41 by the elastic force of the restriction spring 73, and the adjustment mechanism 4 is fixed by the frictional force therebetween.
Specifically, the control mechanism 5 includes control rod 51, control rod 51 installs the side at regulating block 43, the upper end of control rod 51 is equipped with first pressing block 52 and second pressing block 53, the middle part of first pressing block 52 and second pressing block 53 all is equipped with axis of rotation 54, first pressing block 52 and second pressing block 53 are respectively through two axis of rotation 54 and control rod 51 swivelling joint, the one end of first pressing block 52 and second pressing block 53 all extends to the outside of control rod 51, the other end of first pressing block 52 and second pressing block 53 is equipped with first connecting wire 55 and second connecting wire 56 respectively, the one end of first connecting wire 55 runs through locking spring 63's middle part and with locking piece 61 fixed connection, the one end of second connecting wire 56 runs through limiting spring 73's middle part and with limiting block 72 fixed connection, the outside of first connecting wire 55 and second connecting wire 56 all is equipped with rubber silk cover 57, when pressing first pressing block 52's one end, the other end of first pressing block 52 all extends to the outside of control rod 51, the other end of first pressing block 52 and second pressing block 53 is equipped with first connecting wire 55 and second connecting wire 55 respectively, the other end of first pressing block 52 and second pressing block 53 can be broken away from first connecting wire 55 and locking wire 53, thereby the setting up the swing arm 31 can be rotated at the moment when the regulating block 53, and the other end of first pressing block 53 is convenient for the moment is rotated, and the control rod is rotated and thereby set up at the regulating block 53, and can be conveniently, and can be rotated by the first end 31, and can be rotated and conveniently, and moved, and can be rotated and conveniently by a control rod 31, and can be rotated and conveniently by a control rod and moved, and can control rod and a control rod, and a control rod is rotated.
Specifically, the fixing mechanism 1 comprises a fixing clamping plate 11, a fixing clamping strip 12, a fixing shaft 13 and a fixing knob 14, wherein the cross section of the fixing clamping plate 11 is L-shaped, the fixing clamping strip 12 is horizontally arranged at the upper end of the fixing clamping plate 11, a fixing hole is formed in the lower portion of the fixing clamping plate 11, the fixing shaft 13 is positioned in the fixing hole and is in threaded fit with the fixing hole, the fixing knob 14 is arranged at the lower end of the fixing shaft 13, a fixing block 15 in rotary connection with the fixing shaft 13 is arranged at the upper end of the fixing shaft 13, and a fixing gasket 16 is arranged at the upper end of the fixing block 15; the fixed clamping plate 11 is inserted at the lower end of the edge of the sickbed, the fixed clamping strip 12 is inserted at the upper end of the edge of the sickbed, the fixed shaft 13 is driven to rotate by rotating the fixed knob 14, the fixed shaft 13 drives the fixed block 15 and the fixed gasket 16 to move upwards to be tightly pressed with the edge of the sickbed, the fixation is further completed, and the fixed gasket 16 plays a role in protecting, so that abrasion between the fixed block 15 and the sickbed is avoided.
The working principle of the invention is as follows: the fixed clamping plate 11 is inserted at the lower end of the edge of a sickbed, the fixed clamping strip 12 is inserted at the upper end of the edge of the sickbed, the fixed shaft 13 is driven to rotate by rotating the fixed knob 14, the fixed shaft 13 drives the fixed block 15 and the fixed gasket 16 to move upwards to be tightly pressed with the edge of the sickbed, the digestion endoscope is inserted in the fixed groove 44, the fastening shaft 46 is rotated by rotating the fastening knob 48, the digestion endoscope is fixedly pressed by the fastening gasket 47, the lifting rod 213 is pulled upwards until the lifting rod 213 moves to a proper height, the two pushing blocks 226 are pushed upwards to press the friction plate 228 against the fixed wheel 225, at the moment, the friction plate 228 is driven to move upwards by the transmission of the force received by the lifting rod 213 after adjustment, at this time, the pushing block 226 is located at the uppermost part of the pushing groove 227, so that the fixed wheel 225 can be fixed, the lifting rod 213 cannot move downwards, a doctor is carried on the rotating arm 31, holds the control rod 51 at the front end, presses one end of the first pressing block 52 when the rotating arm 31 needs to be adjusted, the other end of the first pressing block 52 drives the first connecting wire 55 to pull the locking block 61, the locking spring 63 is contracted, the locking block 61 is separated from the locking wheel 62, the rotating arm 31 can be freely rotated, when the adjusting mechanism 4 needs to be adjusted, one end of the second pressing block 53 is pressed, the other end of the second pressing block 53 drives the second connecting wire 56 to pull the limiting block 72 to be separated from the ball 41, and the adjusting mechanism 4 can be adjusted.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.