CN112336509A

CN112336509A - Multifunctional fixing device for neck fracture

Info

Publication number: CN112336509A
Application number: CN202011228370.2A
Authority: CN
Inventors: 冯延冰; 李春雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-02-09

Abstract

A multifunctional fixing device for neck fracture is characterized in that the lower ends of a rear supporting plate and a front supporting plate are respectively hinged with a lower supporting plate with an adjustable angle, and the surface of a through hole is fixedly connected with a fixing device; a detachable upper support plate is arranged on the lower side of the lower support plate on the rear side, a lower support plate capable of moving up and down is connected to the lower side of the upper support plate in a sliding mode, third binding belts are fixedly connected to the upper sides of the surfaces of the left end and the right end of the upper support plate respectively, and a relieving box is fixedly connected to the other ends of the third binding belts respectively; when the device is used, the back supporting plate and the front supporting plate can be detached and directly connected when the head of a patient is fixed, so that the head of the patient can be conveniently supported and fixed, the operation steps of fixing the head of the patient are reduced, the distance between the back supporting plate and the front supporting plate can be adjusted according to the thickness of the neck of the patient during connection, and the application range is enlarged; the relieving box is used for relieving the muscles of the back side of the shoulder and the back of the patient and preventing the muscles of the shoulder and the back of the patient from being too stiff to influence the recovery of the neck.

Description

Multifunctional fixing device for neck fracture

Technical Field

The invention relates to the field of medical equipment, in particular to a multifunctional fixing device for neck fracture.

Background

Neck fracture patient need brake the patient usually in the treatment process, through fixing supplementary neck to patient's neck and head and recovering, prevent that the patient from rotating when the neck has not recovered yet and causing secondary damage, support and fix patient's head at present when supporting with fixed patient's neck and head and use the neck brace commonly, and pull patient's head through the neck brace, promote patient's neck recovery, but the neck brace simple structure who uses at present, the function is single relatively, and it is more troublesome to operate when using and adjusting, the phenomenon that muscle stiffness and local pain appear easily in the shoulder back when the patient wears the neck brace for a long time to support with fixed head, produce the discomfort to the patient easily, and do not do benefit to the recovery of patient's neck.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a multifunctional fixing device for neck fracture, which is simple in operation and multiple in function, and effectively solves the problems that the existing neck support is simple in structure, relatively single in function, relatively troublesome in operation and adjustment, and the phenomena of muscle stiffness and local pain easily occur on the shoulder and back when the neck support is worn for a long time to support and fix the head.

In order to solve the problems, the invention adopts the technical scheme that:

a multifunctional fixing device for neck fracture comprises a rear supporting plate and a front supporting plate, wherein lower ends of the rear supporting plate and the front supporting plate are respectively hinged with a lower supporting plate with an adjustable angle, the rear supporting plate is detachably connected with the front supporting plate, a through hole is formed in the middle of the front end of the front supporting plate, and a fixing device is fixedly connected to the surface of the through hole; a detachable upper support plate is mounted on the lower side of the lower support plate on the rear side, a lower support plate capable of moving up and down is connected to the lower side of the upper support plate in a sliding mode, third binding belts are fixedly connected to the upper sides of the surfaces of the left end and the right end of the upper support plate respectively, and a relieving box is fixedly connected to the other ends of the third binding belts respectively;

the inside of the box of releiving installs multiunit massage structure respectively, massage structure includes fixed connection respectively the built-in plate of the box inner wall of releiving, the left and right sides on built-in plate surface sliding connection has the spline section of thick bamboo that can move to the inboard in step respectively, the inside splined connection of spline section of thick bamboo has the integral key shaft that can reciprocate, works as the spline section of thick bamboo can constitute when moving to the inboard the structure that the integral key shaft moved down, the lower extreme fixedly connected with of integral key shaft goes up the rotor plate, the lower extreme of going up the rotor plate rotates and is connected with down the cooperation box, the inside lower extreme sliding connection of cooperation box has a plurality of massage axles that can reciprocate down, works as can constitute a plurality ofly when the spline section of thick.

Preferably, the fixing device comprises a fixing box fixedly connected to the surface of the through hole, the front end of the fixing box is provided with an accommodating hole corresponding to the through hole, the inner wall of the accommodating hole is respectively provided with a plurality of fixing plates capable of moving towards the inner side synchronously, the outer end surfaces of the fixing plates are respectively and fixedly connected with a braking plate, the braking plates are respectively and slidably connected with the inner wall of the fixing box, and the outer side of the upper end of each braking plate is respectively and fixedly connected with a toggle pin shaft; the upper end of the inside of the fixed box is rotatably connected with a linkage large gear, the edge of the linkage large gear is respectively engaged with a plurality of linkage gears, the linkage gears are respectively rotatably connected with the inside of the fixed box, the rear sides of the linkage gears are respectively and coaxially fixedly connected with a poking plate, the surfaces of the poking plates are respectively provided with a pushing chute, and a poking pin shaft is respectively connected with the inner wall of the pushing chute in a sliding manner;

the surface of the brake plate is fixedly connected with an installation shaft, the surface of the installation shaft is respectively sleeved with a fixed spring, the inner side of the surface of the installation shaft is respectively connected with a second spring baffle in a sliding manner, and the second spring baffles are respectively fixedly connected with the inner wall of the fixed box;

a stopping ratchet wheel is coaxially and fixedly connected between the linkage gear and the shifting plate respectively, a stopping ratchet block is meshed on the surface of the stopping ratchet wheel respectively, the stopping ratchet blocks are connected with the inner wall of the fixed box in a sliding mode respectively, a first return spring is fixedly connected to the surface of the inner end of each stopping ratchet block, and the other end of each first return spring is fixedly connected with the inner wall of the fixed box respectively; the surface of the stop ratchet block is respectively provided with a displacement chute, the inner wall of the displacement chute is respectively connected with a displacement shaft in a sliding manner, the other end of the displacement shaft is respectively fixedly connected with a control rod capable of moving back and forth, when the control rod moves back, the displacement shaft is matched with the displacement chute to form a structure that the stop ratchet block is disengaged from the stop ratchet block, the front end of the control rod respectively penetrates through the fixing box, and the upper end of the control rod is jointly and fixedly connected with a control ring.

Preferably, the middle part inside the relieving box is fixedly connected with a motor, the output end of the motor is fixedly connected with a driving gear, the upper end of the built-in plate is respectively and rotatably connected with a first driving gear and a second driving gear which are mutually meshed, and the front side and the rear side of the driving gear are respectively meshed with the adjacent second driving gears; the lower ends of the second driving gears are respectively and coaxially and fixedly connected with linkage belt wheels, and the linkage belt wheels at the lower ends of the second driving gears on the two sides of the driving gear are respectively connected through a transmission belt; first drive gear with second drive gear's non-center punishment do not articulates there is the hinge bar, the upper end rotation of spline section of thick bamboo is connected with the installation slide, the installation slide surface with built-in board sliding connection, the outer end of hinge bar respectively with the upper end of installation slide is articulated, both sides are the spacing axle of fixedly connected with respectively around the installation slide lower extreme, the surface of spacing axle sliding connection respectively has the limiting plate, the lower extreme of limiting plate respectively with cooperation box fixed connection down.

Preferably, the upper sides of the surfaces of the spline cylinders are respectively and fixedly connected with a vibration gear, the edges of the vibration gears are respectively meshed with a vibration rack, and the vibration racks are respectively and fixedly connected with the surface of the built-in plate; the left side and the right side of the surface of the built-in plate are respectively provided with a downward moving chute which inclines inwards, the lower side of the surface of the spline shaft is respectively and rotatably connected with a downward moving limiting plate, the upper side of the downward moving limiting plate is fixedly connected with a downward moving pin shaft, and the downward moving pin shaft is in sliding connection with the downward moving chute; the lower end of the upper rotating plate is provided with a plurality of matching grooves, the upper end of the massage shaft is meshed with the corresponding matching grooves respectively, the surface of the massage shaft is fixedly connected with a first spring baffle, the outer side of the first spring baffle is connected with a spring barrel in a sliding mode, the spring barrel is fixedly connected with the inner wall of the lower matching box, a vibration spring is arranged inside the spring barrel, and the vibration spring is sleeved on the surface of the massage shaft respectively.

Preferably, the lower sides of the left sides of the front supporting plate and the rear supporting plate are respectively and fixedly connected with a mounting box, the interior of each mounting box is respectively provided with a matching gear, the left side surface of the lower supporting plate is respectively and fixedly connected with an arc-shaped matching rack, the upper end of each matching rack respectively penetrates through the mounting box, and the matching racks are respectively meshed with the matching gears; an inner shaft is fixedly connected to the middle of the matching gear, and two ends of the inner shaft are respectively rotatably connected with the inner wall of the mounting box; the right side of the matching gear is coaxially and fixedly connected with a reset coil spring, and the outer end of the reset coil spring is fixedly connected with the inner wall of the mounting box; the left end of the inner shaft is fixedly connected with a first end face gear, the right side of the first end face gear is engaged with a second end face gear, the middle part of the second end face gear is connected with the surface of the inner shaft in a sliding manner, two sides corresponding to the surface of the second end face gear are respectively and fixedly connected with an elongated plate, the surface of each elongated plate is respectively connected with a limiting rod in a sliding manner, the surface of each limiting rod is respectively sleeved with an engagement spring, and two ends of each engagement spring are respectively and fixedly connected with the surface of each limiting rod and the surface of each elongated plate; the upper side and the lower side of the left end surface of the lengthened plate are respectively and fixedly connected with a connecting rod, the surface of the connecting rod is in sliding connection with the surface of the left end of the mounting box, and the left end of the connecting rod is fixedly connected with a separation plate.

Preferably, the left side and the right side of the rear supporting plate are respectively fixedly connected with a connecting box, the inside of each connecting box is respectively connected with a connecting plate in a sliding manner, the front end of each connecting plate is respectively fixedly connected with the surface of the front supporting plate, the upper end and the lower end of the inside of each connecting box are respectively fixedly connected with a spring rod, the spring rods are respectively connected with the surfaces of the upper end and the lower end of each connecting plate in a sliding manner, the surface of each spring rod is sleeved with a pushing spring, and the rear end of each pushing spring is fixedly connected with the inner wall of the corresponding; the surface of the connecting plate is fixedly connected with a connecting ratchet bar respectively, the upper end of the connecting ratchet bar is meshed with a one-way ratchet block respectively, the one-way ratchet block is connected with the inner wall of the connecting box in a sliding manner respectively, the upper end of the one-way ratchet block is fixedly connected with a second return spring respectively, and the upper end of the second return spring is fixedly connected with the inner wall of the connecting box respectively; the front end of the one-way ratchet block is fixedly connected with a second protruding block respectively, the outer end surface of the connecting box is connected with a release button respectively in a sliding mode, and the inner end of the release button is fixedly connected with a first protruding block corresponding to the second protruding block respectively.

Preferably, the lower end of the lower supporting plate at the lower side of the rear supporting plate is hinged with a mounting plate, the left end and the right end of the rear side of the hinged part of the rear supporting plate and the lower supporting plate are respectively hinged with a parallel rod, and the lower end of the parallel rod is hinged with the left end and the right end of the rear side of the mounting plate; the upper end of the upper support plate is fixedly connected with a connecting screw rod, the middle part of the mounting plate is provided with a mounting hole, the connecting screw rod is mounted in the mounting hole, and the upper end of the connecting screw rod is in threaded connection with a connecting knob; the rear end surface of the upper support plate is provided with a mounting groove, the upper end of the lower support plate is connected inside the mounting groove in a sliding manner, the left sides of the lower support plate are respectively and fixedly connected with connecting slide rods, and the surfaces of the connecting slide rods are respectively connected to the left side and the right side of the upper support plate in a sliding manner; the upper side of the upper support plate is connected with a lengthening knob through threads; the left side and the right side of the upper support plate and the lower support plate are respectively and fixedly connected with a first binding belt.

The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:

1. when the device is used, the back supporting plate and the front supporting plate can be detached and directly connected when the head of a patient is fixed, so that the head of the patient can be conveniently supported and fixed, the fixing efficiency is improved, the operation steps of fixing the head of the patient are reduced, the distance between the back supporting plate and the front supporting plate can be adjusted according to the thickness of the neck of the patient when the device is connected, and the application range is enlarged; after the fixation is finished, the angle of the lower supporting plate can be adjusted according to the traction height required by the patient, the height for supporting the head of the patient is adjusted by adjusting the height of the lower supporting plate, the head of the patient can be conveniently pulled, and the neck can be assisted to heal; the upper support plate and the lower support plate are matched to support the back of a patient, so that the back of the patient is straightened and is matched with the head of the patient, the neck of the patient is prevented from being damaged secondarily when the back of the patient is bent, the upper support plate and the lower support plate can be disassembled according to the state of illness of the patient, the upper support plate and the lower support plate can be disassembled when the patient does not need to use the upper support plate and the lower support plate, and the comfort of the patient in use is enhanced;

2. the box of releiving is used for the muscle of patient's shoulder rear side and back of releiving, prevent that the muscle of patient's shoulder and back is too stiff and influence the recovery of neck, the integral key shaft can move to the downside when using the box of releiving to massage patient's shoulder back and move the shoulder back through the massage axle to patient's shoulder application of force gradually, play and press the effect of holding between the fingers, and still can last reciprocating at the in-process massage axle of application of force shakes patient's shoulder back, play the muscle of the patient shoulder back of fully releiving, promote blood circulation, the effect of the recovery of supplementary patient's neck, can dismantle along with last extension board and lower extension board when not needing, and easy operation is convenient.

Drawings

Fig. 1 is a first schematic view of the overall structure of a multifunctional cervical fracture fixation device of the present invention.

Fig. 2 is a second schematic view of the overall structure of a multifunctional cervical fracture fixation device of the present invention.

Fig. 3 is a third schematic view of the overall structure of a multifunctional cervical fracture fixation device of the present invention.

Fig. 4 is a first schematic view of a fixing device of the multifunctional fixing device for cervical fracture according to the present invention.

Fig. 5 is a schematic view showing the engagement of the stopping ratchet wheel and the stopping ratchet block of the multifunctional cervical fracture fixation device of the present invention.

Fig. 6 is an exploded view of the displacement chute and displacement shaft cooperating structure of the multifunctional cervical fracture fixation device of the present invention.

Fig. 7 is a second view illustrating a fixing device of the multi-functional fixing device for cervical fracture according to the present invention.

Fig. 8 is a schematic view of the connection structure of the striking plate and the braking plate of the multifunctional cervical fracture fixation device of the present invention.

Fig. 9 is a first schematic view of the internal structure of the mounting box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 10 is a second schematic view of the internal structure of the mounting box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 11 is a first schematic view showing the internal structure of a connection box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 12 is a second schematic view showing the internal structure of a connection box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 13 is a schematic view of a parallel rod mounting structure of the multifunctional cervical fracture fixation device of the present invention.

Fig. 14 is a first schematic view of the internal structure of the relaxation box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 15 is a second schematic view of the internal structure of the relaxation box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 16 is a schematic view of the fitting structure of the downward moving chute and the downward moving pin of the multifunctional cervical fracture fixation device of the present invention.

Fig. 17 is a schematic view of a spline cylinder and spline shaft fitting structure of the multifunctional cervical fracture fixation device of the present invention.

Fig. 18 is a first schematic view showing the internal structure of a lower fitting box of the multifunctional cervical fracture fixation device of the present invention.

Fig. 19 is a second schematic view showing the inner structure of a lower fitting box of the multifunctional fixing device for cervical fracture according to the present invention.

FIG. 20 is a schematic view of the second driving gear transmission structure of the multifunctional cervical fracture fixation device of the present invention

Reference numbers in the figures: 1-rear supporting plate, 2-front supporting plate, 3-upper supporting plate, 4-lower supporting plate, 5-relieving box, 6-first binding belt, 7-second binding belt, 8-hook, 9-lower supporting plate, 10-fixing box, 11-fixing plate, 12-fixing spring, 13-braking plate, 14-shifting plate, 15-stopping ratchet wheel, 16-linkage gear, 17-shifting pin shaft, 18-linkage large gear, 19-first reset spring, 20-stopping ratchet block, 21-control rod, 22-displacement shaft, 23-displacement chute, 24-mounting box, 25-matching rack, 26-matching gear, 27-resetting coil spring, 28-inner shaft, 29-first end face gear, 30-second end face gear, 31-limiting rod, 32-meshing spring, 33-disengaging plate, 34-connecting rod, 35-connecting plate, 36-connecting box, 37-pushing spring, 38-connecting ratchet bar, 39-second return spring, 40-one-way ratchet block, 41-disengaging button, 42-first protruding block, 43-second protruding block, 44-mounting plate, 45-parallel rod, 46-connecting knob, 47-connecting sliding rod, 48-motor, 49-driving gear, 50-first driving gear, 51-second driving gear, 52-hinged rod, 53-mounting sliding plate, 54-built-in plate, 55-downward moving chute, 56-downward moving pin shaft, 57-spline shaft, 58-downward moving limiting plate, 59-vibrating gear, 60-spline cylinder, 61-upper rotating plate, 62-lower matching box, 63-matching groove, 64-spring cylinder, 65-massage shaft, 66-vibration spring, 67-first spring baffle, 68-third binding belt, 69-lengthening knob, 70-second spring baffle, 71-control ring, 72-linkage pulley and 73-vibration rack.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-20, the invention provides a multifunctional fixing device for neck fracture, which comprises a rear supporting plate 1 and a front supporting plate 2, wherein the lower ends of the rear supporting plate 1 and the front supporting plate 2 are respectively hinged with a lower supporting plate 9 with an adjustable angle, the rear supporting plate 1 is detachably connected with the front supporting plate 2, the middle part of the front end of the front supporting plate 2 is provided with a through hole, and the surface of the through hole is fixedly connected with a fixing device; a detachable upper support plate 3 is mounted on the lower side of the lower support plate 9 on the rear side, a lower support plate 4 capable of moving up and down is connected to the lower side of the upper support plate 3 in a sliding manner, third binding belts 68 are fixedly connected to the upper sides of the surfaces of the left end and the right end of the upper support plate 3 respectively, and a relieving box 5 is fixedly connected to the other ends of the third binding belts 68 respectively;

the massage structure comprises built-in plates 54 fixedly connected to the inner wall of the relaxation box 4, spline cylinders 60 capable of synchronously moving inwards are slidably connected to the left and right sides of the surfaces of the built-in plates 54 respectively, spline shafts 57 capable of moving up and down are splined to the inner portions of the spline cylinders 60, the spline shafts 57 can move down when the spline cylinders 60 move inwards, upper rotating plates 61 are fixedly connected to the lower ends of the spline shafts 57, lower matching boxes 62 are rotatably connected to the lower ends of the upper rotating plates 61, a plurality of massage shafts 65 capable of moving up and down are slidably connected to the lower inner ends of the lower matching boxes 62, and the plurality of massage shafts 65 can move up and down synchronously when the spline cylinders 60 move.

When the device is used, the back supporting plate 1 and the front supporting plate 2 can be detached and directly connected when the head of a patient is fixed, so that the head of the patient can be conveniently supported and fixed, the fixing efficiency is improved, the operation steps of fixing the head of the patient are reduced, the distance between the back supporting plate 1 and the front supporting plate 2 can be adjusted according to the thickness of the neck of the patient when the device is connected, and the application range is enlarged; after the fixation is finished, the angle of the lower supporting plate 9 can be adjusted according to the traction height required by the patient, the height for supporting the head of the patient is adjusted by adjusting the height of the lower supporting plate 9, the head of the patient can be conveniently pulled, and the neck can be assisted to heal; the upper support plate 3 and the lower support plate 4 are matched to support the back of a patient, so that the back of the patient is straightened and is matched with the head of the patient, the neck of the patient is prevented from being damaged secondarily when the back of the patient is bent, the upper support plate 3 and the lower support plate 4 can be disassembled according to the state of illness of the patient, the upper support plate 3 and the lower support plate 4 can be disassembled when the patient does not need to use the upper support plate 3 and the lower support plate 4, and the comfort of the patient in use is enhanced; the relieving box 5 is used for relieving the muscles of the back side and the back of the shoulders of the patient and preventing the muscles of the shoulders and the back of the patient from being too stiff and influencing the recovery of the neck, the lower ends of the relieving box 5 are respectively fixedly connected with elastic reinforcing bands, the other ends of the reinforcing bands are respectively fixedly connected with the upper support plate 3 and used for enhancing the firmness of the relieving box 5 in the fixing process, the upper ends of the relieving box 5 are respectively and fixedly connected with a hanging buckle, the lower ends of the relieving box 5 are respectively and fixedly connected with an elastic second restraining band 7, the other ends of the second restraining bands 7 are respectively and fixedly connected with a hook 8, the hook 8 is connected with the hanging buckle, the second restraining band 7 can penetrate through the armpits of the patient to fix the relieving box 5 on the back of the shoulders of the patient, and the third restraining band 68 can also be made of elastic materials and used for restraining the relieving box 5 and enhancing the firmness of the relieving box 5 in the; when the relieving box 5 is used, the two corresponding spline cylinders 60 can be moved to the inner side and the outer side repeatedly, the spline shaft 57 repeatedly moves up and down while the spline cylinders 60 move, the massage shaft 65 is used for pressing and pinching the shoulder and back of a patient, when the two spline cylinders 60 move to the inner side simultaneously, the spline shaft 57 can move to the lower side while moving to the inner side simultaneously, the massage shaft 65 is used for applying force to the shoulder and back of the patient, the pressing and pinching effect is achieved, the massage shaft 65 can continuously move up and down to vibrate the shoulder and back of the patient in the force applying process, muscles on the shoulder and back of the patient are fully relieved, blood circulation is promoted, the recovery effect of the neck of the patient is assisted, the relieving box can be detached along with the upper support plate 3 and the lower support plate 4 when not needed, and the operation is simple and convenient; the lower extreme surface of the box of releiving 5 is the arc structure to the lower extreme surface of the box of releiving 5 can adopt the soft material that the gas permeability is good to make, can conveniently releive the inside massage device effect of box 5 and patient's shoulder back, and the travelling comfort when strengthening the use.

As shown in fig. 5, the fixing device includes a fixing box 10 fixedly connected to the surface of the through hole, the front end of the fixing box 10 is provided with an accommodating hole corresponding to the through hole, the inner walls of the accommodating hole are respectively provided with a plurality of fixing plates 11 capable of moving synchronously inward, the outer end surfaces of the fixing plates 11 are respectively fixedly connected with a braking plate 13, the braking plates 13 are respectively slidably connected with the inner walls of the fixing box 10, and the outer sides of the upper ends of the braking plates 13 are respectively fixedly connected with toggle pins 17; an interlocking large gear 18 is rotatably connected to the upper end inside the fixed box 10, a plurality of interlocking gears 16 are respectively meshed with the edge of the interlocking large gear 18, the interlocking gears 16 are respectively rotatably connected with the inside of the fixed box 10, a toggle plate 14 is respectively and coaxially and fixedly connected to the rear side of each interlocking gear 16, pushing sliding grooves are respectively formed in the surfaces of the toggle plates 14, and toggle pin shafts 17 are respectively connected with the inner walls of the pushing sliding grooves in a sliding manner;

the surface of the brake plate 13 is fixedly connected with an installation shaft, the surface of the installation shaft is respectively sleeved with a fixed spring 12, the inner side of the surface of the installation shaft is respectively connected with a second spring baffle 70 in a sliding manner, and the second spring baffle 70 is respectively fixedly connected with the inner wall of the fixed box 10;

a stop ratchet wheel 15 is coaxially and fixedly connected between the linkage gear 16 and the toggle plate 14 respectively, a stop ratchet block 20 is meshed on the surface of the stop ratchet wheel 15 respectively, the stop ratchet blocks 20 are connected with the inner wall of the fixed box 10 in a sliding manner respectively, a first return spring 19 is fixedly connected to the surface of the inner end of each stop ratchet block 20, and the other end of each first return spring 19 is fixedly connected with the inner wall of the fixed box 10 respectively; the surface of the stop ratchet block 20 is respectively provided with a displacement chute 23, the inner wall of the displacement chute 23 is respectively connected with a displacement shaft 22 in a sliding manner, the other end of the displacement shaft 22 is respectively fixedly connected with a control rod 21 capable of moving back and forth, when the control rod 21 moves backwards, the stop ratchet block 20 and the stop ratchet block 20 are separated from each other and meshed by matching the displacement shaft 22 and the displacement chute 23, the front end of the control rod 21 respectively penetrates through the fixed box 10, and the upper end of the control rod 21 is jointly and fixedly connected with a control ring 71.

The fixing device is used for helping patients with neck fracture seriously unable to breathe actively and needing a tracheal cannula to fix the trachea, the accommodating hole is used for accommodating the tracheal cannula, and the trachea can be fixed through the fixing plate 11 when the trachea is inserted, so that the trachea is prevented from falling off accidentally; when in use, one of the poking plates 14 is poked to enable the plurality of fixed plates 11 to simultaneously move inwards to fix the trachea; as shown in fig. 8, the stopper plate 13 is pushed to move by pressing the toggle plate 14 through the engagement of the toggle pin 17 with the push slide groove, the fixing spring 12 is pressed by the second spring stopper 70 when the braking plate 13 moves, and when the poking plate 14 rotates, all the interlocking gears 16 are driven to rotate in the same direction through the interlocking gear 18 under the meshing of the interlocking gear 16 and the interlocking gear 18, all the poking plates 14 rotate simultaneously to push the braking plate 13 inwards, so that the fixing plate 11 can move inwards simultaneously to fix the air pipe, and when the brake plate 13 moves, the brake plate 13 has the effect of moving in one direction under the matching of the stop ratchet 15 and the stop ratchet block 20, so that the brake plate 13 can only move inwards, the air pipe can not move outwards under the rebound of the fixed spring 12, and the effect of conveniently fixing the air pipe by the operation of a user is achieved; when the trachea needs to be drawn out, as shown in fig. 5, 6 and 7, the surface of the control rod 21 is in sliding connection with the surface of the fixed box 10, the control ring 71 is pressed downwards to drive the control rod 21 to move backwards, the stop ratchet block 20 can be pushed to be disengaged from the stop ratchet wheel 15 through the matching of the displacement shaft 22 and the displacement chute 23, the first return spring 19 is used for pushing the stop ratchet block 20 to be engaged with the stop ratchet wheel 15, when the control ring 71 is loosened, the stop ratchet block 20 can be engaged with the stop ratchet wheel 15 again under the pushing of the first return spring 19, and the control ring 71 is pushed to reset under the linkage action.

As shown in fig. 14 and 15, a motor 48 is fixedly connected to the middle inside the soothing box 5, a driving gear 49 is fixedly connected to an output end of the motor 48, a first driving gear 50 and a second driving gear 51 which are engaged with each other are respectively rotatably connected to the upper end of the built-in plate 54, and the front side and the rear side of the driving gear 49 are respectively engaged with the adjacent second driving gear 51; the lower ends of the second driving gears 51 are coaxially and fixedly connected with linkage belt wheels 72 respectively, and the linkage belt wheels 72 at the lower ends of the second driving gears 51 on the two sides of the driving gear 49 are connected through transmission belts respectively; first drive gear 50 with the non-center punishment of second drive gear 51 articulates respectively has articulated rod 52, the upper end rotation of spline section of thick bamboo 60 is connected with installation slide 53, installation slide 53 surface with built-in plate 54 sliding connection, the outer end of articulated rod 52 respectively with installation slide 53's upper end is articulated, both sides are the spacing axle of fixedly connected with respectively around the installation slide 53 lower extreme, the surface of spacing axle sliding connection respectively has the limiting plate, the lower extreme of limiting plate respectively with cooperate box 62 fixed connection down.

The upper sides of the surfaces of the spline cylinders 60 are respectively and fixedly connected with a vibration gear 59, the edges of the vibration gears 59 are respectively engaged with a vibration rack 73, and the vibration racks 73 are respectively and fixedly connected with the surfaces of the built-in plates 54; downward moving chutes 55 which are inclined inwards are respectively formed in the left side and the right side of the surface of the built-in plate 54, downward moving limiting plates 58 are respectively connected to the lower sides of the surface of the spline shaft 57 in a rotating mode, downward moving pins 56 are fixedly connected to the upper sides of the downward moving limiting plates 58, and the downward moving pins 56 are connected with the downward moving chutes 55 in a sliding mode; a plurality of cooperation recesses 63 have been seted up to the lower extreme of last rotation plate 61, the upper end of massage axle 65 respectively with corresponding cooperation recess 63 meshes, the fixed surface of massage axle 65 is connected with first spring baffle 67, the outside sliding connection of first spring baffle 67 has spring cartridge 64, spring cartridge 64 with cooperate box 62 inner wall fixed connection down, the inside of spring cartridge 64 is provided with vibrations spring 66, vibrations spring 66 overlaps respectively on massage axle 65 surface.

When the motor 48 is started, the driving gear 49 is meshed with two adjacent second driving gears 51 and the connecting belt wheel 72 and the transmission belt are used for driving the first driving gear 50 and the second driving gear 51 to be meshed and rotated relatively at the same time, when the first driving gear 50 and the second driving gear 51 are rotated, the mounting sliding plates 53 on the left side and the right side of each built-in plate 54 can be repeatedly moved inwards and outwards by pulling the hinge rod 52, and further, the devices connected with the mounting sliding plates 53 are driven to move synchronously; the matching of the limiting rod 31 and the limiting plate is used for limiting the lower matching box 62, so that the lower matching box 62 can only move up and down and cannot rotate, when the spline cylinder 60 moves along with the installation sliding plate 53, the lower matching box 62 is meshed with the vibration rack 73 through the vibration gear 59 and then rotates, when the spline cylinder 60 moves and rotates, the spline shaft 57 moves and rotates simultaneously, as shown in fig. 16, when the spline shaft 57 moves, the spline shaft 57 can be driven to move up and down while moving under the matching of the downward moving chute 55 and the downward moving pin shaft 56, and the upper matching plate 61 and the lower matching plate are driven to move up and down, so that the shoulder and back of a patient can be pressed and pinched, the force is gradually increased when the patient is pinched, the massage effect is enhanced, and the spline shaft 57 can also drive the upper matching plate 61 to rotate when the upper rotating plate 61 rotates, because the lower matching box 62 cannot, the massage shaft 65 inside the lower matching box 62 is continuously ejected out of the matching groove by the upper rotating plate 61 and then meshed with the matching groove 63, so that the massage shaft 65 can continuously move up and down to vibrate the shoulder and back of the patient, the massage effect is enhanced, and the blood circulation of the shoulder and back of the patient is promoted.

As shown in fig. 9 and 10, the lower sides of the left sides of the front supporting plate 2 and the rear supporting plate 1 are fixedly connected with mounting boxes 24 respectively, the insides of the mounting boxes 24 are provided with matching gears 26 respectively, the left side surface of the lower supporting plate 9 is fixedly connected with arc-shaped matching racks 25 respectively, the upper ends of the matching racks 25 penetrate through the mounting boxes 24 respectively and the matching racks 25 are engaged with the matching gears 26 respectively; an inner shaft 28 is fixedly connected to the middle of the matching gear 26, and two ends of the inner shaft 28 are respectively rotatably connected with the inner wall of the mounting box 24; a reset coil spring 27 is coaxially and fixedly connected to the right side of the matching gear 26, and the outer end of the reset coil spring 27 is fixedly connected to the inner wall of the mounting box 24; a first end face gear 29 is fixedly connected to the left end of the inner shaft 28, a second end face gear 30 is meshed to the right side of the first end face gear 29, the middle of the second end face gear 30 is connected with the surface of the inner shaft 28 in a sliding manner, two sides of the surface of the second end face gear 30, which correspond to the surfaces, are respectively and fixedly connected with an elongated plate, the surfaces of the elongated plates are respectively and slidably connected with a limiting rod 31, engaging springs 32 are respectively sleeved on the surfaces of the limiting rods 31, and two ends of each engaging spring 32 are respectively and fixedly connected with the surfaces of the limiting rods 31 and the elongated plates; the upper side and the lower side of the left end surface of the lengthened plate are respectively fixedly connected with a connecting rod 34, the surface of the connecting rod 34 is in sliding connection with the left end surface of the mounting box 24, and the left end of the connecting rod 34 is fixedly connected with a separation plate 33.

When the angle of the lower supporting plate 9 is adjusted, the matching rack 25 and the matching gear 26 are meshed to drive the inner shaft 28 to rotate, the return coil spring 27 is contracted, when the first end face gear 29 and the second end face gear 30 are meshed, the matching gear 26 cannot rotate, the matching rack 25 cannot move, and the lower supporting plate 9 is fixed; a press button is fixedly connected to the left end of the releasing plate 33, when the angle of the lower supporting plate 9 needs to be adjusted, the press button can be pressed to drive the second end face gear 30 to be disengaged from the first end face gear 29 and extrude the meshing spring 32, the matching gear 26 can be restored to rotate after the first end face gear 29 is disengaged from the second end face gear 30, the lower supporting plate 9 can be reset or adjusted in angle under the action of the reset coil spring 27, the press button is released after the adjustment is completed, the first end face gear 29 and the second end face gear 30 can be re-meshed under the pushing of the meshing spring 32, and the lower supporting plate 9 is fixed; a plurality of air holes are respectively formed in the surfaces of the lower support plate, the rear support plate 1 and the front support plate 2, and are used for the ventilation of the neck of a patient, so that the comfort in use is enhanced.

As shown in fig. 11 and 12, the left and right sides of the rear supporting plate 1 are fixedly connected with a connecting box 36 respectively, the inside of the connecting box 36 is connected with a connecting plate 35 respectively in a sliding manner, the front end of the connecting plate 35 is fixedly connected with the surface of the front supporting plate 2 respectively, the upper and lower ends of the inside of the connecting box 36 are fixedly connected with spring rods respectively, the spring rods are connected with the surfaces of the upper and lower ends of the connecting plate 35 respectively in a sliding manner, the surface of each spring rod is sleeved with a pushing spring 37, and the rear end of each pushing spring 37 is fixedly connected with the inner wall of the connecting box 36; the surfaces of the connecting plates 35 are fixedly connected with connecting ratchet bars 38 respectively, the upper ends of the connecting ratchet bars 38 are engaged with one-way ratchet blocks 40 respectively, the one-way ratchet blocks 40 are connected with the inner wall of the connecting box 36 in a sliding manner respectively, the upper ends of the one-way ratchet blocks 40 are fixedly connected with second return springs 39 respectively, and the upper ends of the second return springs 39 are fixedly connected with the inner wall of the connecting box 36 respectively; the front ends of the one-way ratchet blocks 40 are fixedly connected with second convex blocks 43 respectively, the outer end surfaces of the connecting boxes 36 are slidably connected with disengaging buttons 41 respectively, and the inner ends of the disengaging buttons 41 are fixedly connected with first convex blocks 42 corresponding to the second convex blocks 43 respectively.

When the front supporting plate 2 and the rear supporting plate 1 are connected, the connecting plate 35 is inserted into the connecting box 36, the connecting plate 35 has a one-way movement effect when entering the connecting box 36 under the meshing action of the connecting ratchet bar 38 and the one-way ratchet block 40, when the front supporting plate 2 and the rear supporting plate 1 are connected, the front supporting plate 2 and the rear supporting plate 1 can be connected according to the thickness of the neck of a patient, the front supporting plate 2 and the rear supporting plate 1 can be loosened after matching is completed, the operation is simple and convenient, and the pushing spring 37 is extruded through the connecting plate 35 when the connection is performed; when the rear supporting plate 1 and the front supporting plate 2 are separated, the front supporting plate 2 and the rear supporting plate 1 can be separated under the pushing of the pushing spring 37 by pressing the separation button 41, so that the separation of the front supporting plate 2 and the rear supporting plate 1 is realized, and the operation is simple and convenient; when the disengaging button 41 is pressed, the first convex block 42 jacks up the second convex block 43, so that the one-way ratchet block 40 can be simultaneously pushed up, the one-way ratchet block 40 is disengaged from the connecting ratchet plate, the front support plate 2 can be pushed out by pushing the spring 37 without the limitation of the one-way ratchet block 40, and the second return spring 39 is used for pushing the one-way ratchet block 40 to be engaged with the connecting ratchet 38.

As shown in fig. 13, the lower end of the lower supporting plate 9 at the lower side of the rear supporting plate 1 is hinged to a mounting plate 44, the left and right ends of the rear side of the hinge of the rear supporting plate 1 and the lower supporting plate 9 are respectively hinged to parallel rods 45, and the lower end of each parallel rod 45 is hinged to the left and right ends of the rear side of the mounting plate 44; the upper end of the upper support plate 3 is fixedly connected with a connecting screw rod, the middle part of the mounting plate 44 is provided with a mounting hole, the connecting screw rod is mounted in the mounting hole, and the upper end of the connecting screw rod is in threaded connection with a connecting knob 46; the rear end surface of the upper support plate 3 is provided with a mounting groove, the upper end of the lower support plate 4 is connected inside the mounting groove in a sliding manner, the left sides of the lower support plate 4 are respectively and fixedly connected with connecting slide rods 47, and the surfaces of the connecting slide rods 47 are respectively connected to the left side and the right side of the upper support plate 3 in a sliding manner; the upper side of the upper support plate 3 is connected with a lengthening knob 69 through threads; the left side and the right side of the upper support plate 3 and the lower support plate 4 are respectively fixedly connected with a first binding belt 6.

The hinged points at the two ends of the parallel rod 45 are mutually parallel to the hinged point of the mounting plate 44 and the lower supporting plate 9 and the hinged point of the lower supporting plate 9 and the rear supporting plate 1, the mounting plate 44 can be always kept in a planar state under the action of the parallel rod 45 when the lower supporting plate 9 is adjusted in angle, the connecting screw rod is in threaded connection with the connecting knob 46 and is used for mounting the upper supporting plate 3, and the connecting knob 46 is detached when the upper supporting plate 3 and the lower supporting plate 4 are detached; the lengthening knob 69 is used for fixing the lower support plate 4, the length of the lower support plate 4 can be adjusted according to the height of the back of a patient, and the lengthening knob 69 is rotated for fixing, so that the application range is wide; first constraint area 6 is used for fixing upper bracket 3 and lower support plate 4 on one's body the patient, and the surface of first constraint area 6 fixedly connected with magic subsides respectively for realize the connection between first constraint area 6, and convenient the dismantlement.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a multi-functional fixing device of neck fracture, includes back layer board (1) and preceding layer board (2), its characterized in that: the lower ends of the rear supporting plate (1) and the front supporting plate (2) are respectively hinged with a lower supporting plate (9) with an adjustable angle, the rear supporting plate (1) is detachably connected with the front supporting plate (2), the middle part of the front end of the front supporting plate (2) is provided with a through hole, and the surface of the through hole is fixedly connected with a fixing device; a detachable upper support plate (3) is mounted on the lower side of the lower supporting plate (9) on the rear side, a lower support plate (4) capable of moving up and down is connected to the lower side of the upper support plate (3) in a sliding mode, third binding belts (68) are fixedly connected to the upper sides of the surfaces of the left end and the right end of the upper support plate (3) respectively, and relieving boxes (5) are fixedly connected to the other ends of the third binding belts (68) respectively;

a plurality of groups of massage structures are respectively arranged in the relieving box (5), the massage structures respectively comprise an internal plate (54) fixedly connected with the inner wall of the relieving box (4), the left side and the right side of the surface of the built-in plate (54) are respectively connected with spline cylinders (60) which can synchronously move inwards in a sliding way, the spline shaft (57) which can move up and down is connected with the internal spline of the spline cylinder (60), when the spline cylinder (60) moves inwards, the spline shaft (57) can move downwards, the lower end of the spline shaft (57) is fixedly connected with an upper rotating plate (61), the lower end of the upper rotating plate (61) is rotatably connected with a lower matching box (62), the lower end of the interior of the lower matching box (62) is connected with a plurality of massage shafts (65) which can move up and down in a sliding way, when the spline cylinder (60) moves, a structure that a plurality of massage shafts (65) synchronously move up and down can be formed.

2. The multifunctional cervical fracture fixation device of claim 1, wherein: the fixing device comprises a fixing box (10) fixedly connected to the surface of the through hole, the front end of the fixing box (10) is provided with an accommodating hole corresponding to the through hole, the inner wall of the accommodating hole is respectively provided with a plurality of fixing plates (11) capable of moving towards the inner side synchronously, the outer end surface of each fixing plate (11) is respectively and fixedly connected with a brake plate (13), the brake plates (13) are respectively and slidably connected with the inner wall of the fixing box (10), and the outer side of the upper end of each brake plate (13) is respectively and fixedly connected with a toggle pin shaft (17); the upper end of the inside of the fixed box (10) is rotatably connected with a linkage large gear (18), the edges of the linkage large gear (18) are respectively meshed with a plurality of linkage gears (16), the linkage gears (16) are respectively rotatably connected with the inside of the fixed box (10), the rear sides of the linkage gears (16) are respectively and coaxially fixedly connected with a toggle plate (14), the surfaces of the toggle plates (14) are respectively provided with a pushing chute, and toggle pin shafts (17) are respectively connected with the inner wall of the pushing chute in a sliding manner;

the surface of the brake plate (13) is fixedly connected with a mounting shaft, the surface of the mounting shaft is respectively sleeved with a fixed spring (12), the inner side of the surface of the mounting shaft is respectively connected with a second spring baffle (70) in a sliding manner, and the second spring baffle (70) is respectively and fixedly connected with the inner wall of the fixed box (10);

a stop ratchet wheel (15) is coaxially and fixedly connected between the linkage gear (16) and the poking plate (14) respectively, a stop ratchet block (20) is meshed on the surface of the stop ratchet wheel (15) respectively, the stop ratchet blocks (20) are connected with the inner wall of the fixed box (10) in a sliding mode respectively, a first return spring (19) is fixedly connected to the surface of the inner end of each stop ratchet block (20), and the other end of each first return spring (19) is fixedly connected with the inner wall of the fixed box (10) respectively; the surface of the stopping ratchet block (20) is respectively provided with a displacement chute (23), the inner wall of each displacement chute (23) is respectively connected with a displacement shaft (22) in a sliding mode, the other end of each displacement shaft (22) is respectively fixedly connected with a control rod (21) capable of moving back and forth, when the control rods (21) move back, the displacement shafts (22) are matched with the displacement chutes (23) to form a structure that the stopping ratchet block (20) is disengaged from the stopping ratchet block (20), and the front ends of the control rods (21) respectively penetrate through the fixed box (10) and the upper end of each control rod (21) is jointly and fixedly connected with a control ring (71).

3. The multifunctional cervical fracture fixation device of claim 1, wherein: the middle part of the interior of the relieving box (5) is fixedly connected with a motor (48), the output end of the motor (48) is fixedly connected with a driving gear (49), the upper end of the built-in plate (54) is respectively and rotatably connected with a first driving gear (50) and a second driving gear (51) which are mutually meshed, and the front side and the rear side of the driving gear (49) are respectively meshed with the adjacent second driving gear (51); the lower ends of the second driving gears (51) are respectively and coaxially and fixedly connected with linkage belt wheels (72), and the linkage belt wheels (72) at the lower ends of the second driving gears (51) at the two sides of the driving gear (49) are respectively connected through a transmission belt; first drive gear (50) with the non-center department of second drive gear (51) articulates respectively has hinge bar (52), the upper end rotation of spline section of thick bamboo (60) is connected with installation slide (53), installation slide (53) surface with built-in plate (54) sliding connection, the outer end of hinge bar (52) respectively with the upper end of installation slide (53) is articulated, both sides difference fixedly connected with is spacing axle around installation slide (53) lower extreme, the surface difference sliding connection of spacing axle has the limiting plate, the lower extreme of limiting plate respectively with cooperate box (62) fixed connection down.

4. A multi-functional cervical fracture fixation device as claimed in claim 3, wherein: the upper sides of the surfaces of the spline cylinders (60) are respectively and fixedly connected with a vibration gear (59), the edges of the vibration gears (59) are respectively meshed with a vibration rack (73), and the vibration racks (73) are respectively and fixedly connected with the surfaces of the built-in plates (54); downward moving chutes (55) which are inclined inwards are respectively formed in the left side and the right side of the surface of the built-in plate (54), downward moving limiting plates (58) are respectively connected to the lower sides of the surface of the spline shaft (57) in a rotating mode, downward moving pins (56) are fixedly connected to the upper sides of the downward moving limiting plates (58), and the downward moving pins (56) are connected with the downward moving chutes (55) in a sliding mode; go up the lower extreme of rotation plate (61) and seted up a plurality of cooperation recesses (63), the upper end of massage axle (65) respectively with corresponding cooperation recess (63) meshing, the fixed surface of massage axle (65) is connected with first spring baffle (67), the outside sliding connection of first spring baffle (67) has spring cylinder (64), spring cylinder (64) with cooperation box (62) inner wall fixed connection down, the inside of spring cylinder (64) is provided with vibrations spring (66), vibrations spring (66) overlap respectively massage axle (65) surface.

5. The multifunctional cervical fracture fixation device of claim 1, wherein: the lower sides of the left sides of the front supporting plate (2) and the rear supporting plate (1) are respectively and fixedly connected with a mounting box (24), the interior of each mounting box (24) is respectively provided with a matching gear (26), the left side surface of the lower supporting plate (9) is respectively and fixedly connected with an arc-shaped matching rack (25), the upper end of each matching rack (25) penetrates through the mounting box (24) respectively, and the matching racks (25) are respectively meshed with the matching gears (26); an inner shaft (28) is fixedly connected to the middle of the matching gear (26), and two ends of the inner shaft (28) are respectively in rotating connection with the inner wall of the mounting box (24); the right sides of the matching gears (26) are respectively and coaxially fixedly connected with a return coil spring (27), and the outer ends of the return coil springs (27) are respectively and fixedly connected with the inner wall of the mounting box (24); a first end face gear (29) is fixedly connected to the left end of the inner shaft (28), a second end face gear (30) is meshed to the right side of the first end face gear (29), the middle of the second end face gear (30) is connected with the surface of the inner shaft (28) in a sliding mode, two sides, corresponding to the surface of the second end face gear (30), of the two sides are fixedly connected with lengthening plates respectively, limiting rods (31) are connected to the surfaces of the lengthening plates in a sliding mode respectively, meshing springs (32) are sleeved on the surfaces of the limiting rods (31) respectively, and two ends of each meshing spring (32) are fixedly connected with the surfaces of the limiting rods (31) and the surfaces of the lengthening plates respectively; the upper side and the lower side of the left end surface of the lengthened plate are respectively and fixedly connected with a connecting rod (34), the surface of the connecting rod (34) is in sliding connection with the left end surface of the mounting box (24), and the left end of the connecting rod (34) is fixedly connected with a separation plate (33).

6. The multifunctional cervical fracture fixation device of claim 1, wherein: the left side and the right side of the rear supporting plate (1) are fixedly connected with connecting boxes (36) respectively, the inside of each connecting box (36) is connected with a connecting plate (35) in a sliding mode respectively, the front end of each connecting plate (35) is fixedly connected with the surface of the front supporting plate (2) respectively, the upper end and the lower end of the inside of each connecting box (36) are fixedly connected with spring rods respectively, the spring rods are connected with the surfaces of the upper end and the lower end of each connecting plate (35) in a sliding mode respectively, a pushing spring (37) is sleeved on the surface of each spring rod, and the rear end of each pushing spring (37) is fixedly connected with the inner wall of each connecting; the surface of the connecting plate (35) is fixedly connected with a connecting ratchet bar (38) respectively, the upper end of the connecting ratchet bar (38) is meshed with a one-way ratchet block (40) respectively, the one-way ratchet block (40) is connected with the inner wall of the connecting box (36) in a sliding manner respectively, the upper end of the one-way ratchet block (40) is fixedly connected with a second return spring (39) respectively, and the upper end of the second return spring (39) is fixedly connected with the inner wall of the connecting box (36) respectively; the front end of the one-way ratchet block (40) is fixedly connected with a second protruding block (43) respectively, the outer end surface of the connecting box (36) is connected with a disengaging button (41) in a sliding mode respectively, and the inner end of the disengaging button (41) is fixedly connected with a first protruding block (42) corresponding to the second protruding block (43) respectively.

7. The multifunctional cervical fracture fixation device of claim 1, wherein: the lower end of the lower supporting plate (9) on the lower side of the rear supporting plate (1) is hinged with a mounting plate (44), the left end and the right end of the rear side of the hinged position of the rear supporting plate (1) and the lower supporting plate (9) are respectively hinged with a parallel rod (45), and the lower end of the parallel rod (45) is hinged with the left end and the right end of the rear side of the mounting plate (44); the upper end of the upper support plate (3) is fixedly connected with a connecting screw rod, the middle part of the mounting plate (44) is provided with a mounting hole, the connecting screw rod is mounted in the mounting hole, and the upper end of the connecting screw rod is in threaded connection with a connecting knob (46); the rear end surface of the upper support plate (3) is provided with a mounting groove, the upper end of the lower support plate (4) is connected inside the mounting groove in a sliding manner, the left sides of the lower support plate (4) are respectively and fixedly connected with connecting slide rods (47), and the surfaces of the connecting slide rods (47) are respectively connected to the left side and the right side of the upper support plate (3) in a sliding manner; the upper side of the upper support plate (3) is connected with a lengthening knob (69) through threads; the left side and the right side of the upper support plate (3) and the lower support plate (4) are respectively and fixedly connected with a first binding belt (6).