CN216439492U

CN216439492U - Radial artery puncture auxiliary fixing device

Info

Publication number: CN216439492U
Application number: CN202122781964.2U
Authority: CN
Inventors: 房以芹; 郭惠玲
Original assignee: Funing People's Hospital
Current assignee: Funing People's Hospital
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-06
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a radial artery puncture auxiliary fixing device which comprises a fixing component, a rotating component and an arm supporting component, wherein the fixing component is fixed on a sickbed, the rotating component is arranged on the fixing component, the rotating component is rotationally connected with the fixing component, the arm supporting component is arranged on the rotating component, a sliding groove is formed in the rotating component, the arm supporting component is arranged in the sliding groove, the arm supporting component can slide relative to the rotating component, the fixing component comprises a fixing component, a connecting seat and an adjusting component, the connecting seat is arranged on the fixing component, and the adjusting component is arranged on the fixing component. Has the advantages of simple fixing and rotating structure, simple and convenient operation and convenient puncture.

Description

Radial artery puncture auxiliary fixing device

Technical Field

The utility model relates to radial artery puncture, in particular to a radial artery puncture auxiliary fixing device.

Background

The cardiovascular diseases comprise angina pectoris, hypertension, sudden death, arrhythmia, heart failure, arrhythmia and other cardiovascular diseases, radial artery puncture is an emerging subject belonging to interventional therapy, under the guidance of an interventional imaging system DSA, therapeutic drugs and equipment directly act on a focus part, so that the system has the advantages of safety, minimal invasion, small side effect, low treatment cost, quick postoperative recovery and the like, has good curative effect on cardiovascular diseases, and the radial artery puncture is widely applied to clinic, the puncture position is positioned at the wrist, the arm of a patient is easy to shake due to the pain during puncture, meanwhile, the wrist of the patient can be lifted by the towel roll or other articles during puncture, the wrist lifting is favorable for finding the artery to facilitate puncture, the arm is not fixed well clinically, and the workload of nurses is increased by finding the towel roll or other articles.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem, a radial artery puncture auxiliary fixing device is provided; the method is realized by the following technical scheme: a radial artery puncture auxiliary fixing device comprises a fixing component, a rotating component and an arm supporting component, wherein the fixing component is fixed on a sickbed, the rotating component is arranged on the fixing component and is rotationally connected with the fixing component, the arm supporting component is arranged on the rotating component, a sliding groove is formed in the rotating component, the arm supporting component is arranged in the sliding groove and can slide relative to the rotating component, the fixing component comprises a fixing component, a connecting seat and an adjusting component, the connecting seat is arranged on the fixing component, the adjusting component is arranged on the fixing component, the rotating component comprises a rotating plate, a rotating cap and two first moving parts, the rotating plate is connected with the connecting seat, and the two first moving parts are arranged on the rotating plate; the arm supporting assembly comprises a supporting plate, a clamping assembly, a fixing plate and two second moving parts, the supporting plate is arranged on the rotating plate, and the clamping assembly, the fixing plate and the two second moving parts are arranged on the supporting plate.

The radial artery puncture auxiliary fixing device adopts the fixing component to be fixed on a sickbed, the rotating component is rotationally connected with the fixing component, the arm supporting component slides and moves relative to the rotating component, the arm supporting component is detachable relative to the rotating component, and the arm supporting component is provided with the clamping component for fixing an arm and the primary and secondary binding bands for fixing the arm and a hand.

According to the technical scheme, the fixing piece is C-shaped, the two surfaces of the fixing piece are defined as the top surface and the bottom surface, the connecting seat is arranged on the top surface of the fixing piece, the connecting seat is provided with a second hole, the bottom surface of the fixing piece is provided with a first hole, the adjusting assembly is arranged in the first hole and comprises a top plate, a screw rod and a rotating plate, the screw rod penetrates through the first hole, the top plate is arranged at the upper end of the screw rod, the rotating plate is arranged at the lower end of the screw rod, and the screw rod is in threaded connection with the first hole. The fixing component is fixed on the sickbed and is adjusted through the adjusting component, so that the fixing component is fixed on the sickbed.

For the technical scheme of the utility model, one end of a rotating plate is in a step arc shape, two surfaces of the rotating plate are defined as a top surface and a bottom surface, a first straight line chute is arranged on the top surface of the rotating plate, two grooves are arranged on two side surfaces of the rotating plate, a plurality of fourth holes are arranged on the first straight line chute and a partition plate between the two grooves, the number of the fourth holes is multiple, the fourth holes are symmetrically distributed on two sides, a third hole is arranged at the step arc-shaped end of the rotating plate, the third hole is connected with a connecting seat, two first moving parts are correspondingly arranged in the two grooves, each first moving part comprises a plurality of first moving pins, a first movable plate, two first baffle plates, two first springs and a pressing block, one ends of the first moving pins are arranged on one side of the first movable plate, the pressing block is arranged on the other side of the first movable plate, one ends of the two first springs and the first moving pins are arranged on the same side of the first movable plate, the two first springs are positioned at two ends of the first movable plate, one ends of the two first blocking pieces are arranged at the other ends of the two first springs, the other ends of the two first blocking pieces are connected with the groove, the plurality of first movable pins correspond to the plurality of four holes, and the other ends of the plurality of first movable pins are arc-shaped; the rotating cap comprises a cap body and a connecting body, and the connecting body is arranged on the cap body.

The rotating assembly is fixed with the fixed assembly through the rotating cap, the rotating assembly is rotated through adjusting the rotating cap, and when the rotating assembly is adjusted according to the situation during puncturing, the rotating assembly is fixed through the rotating cap and cannot rotate.

According to the technical scheme, the supporting plate comprises a plate body, a boss and a primary and secondary binding belt, two surfaces of the plate body are defined as a top surface and a bottom surface, the boss is arranged in the middle of the bottom surface of the plate body, fifth holes are formed in two ends of the boss, and the primary and secondary binding belt is arranged on one side of the plate body; the two second movable pieces are arranged in the fifth hole and comprise second movable pins, second movable rings, second springs and second blocking pieces, the second movable pins are connected with the second movable rings, one ends of the second springs are connected with the second movable rings, the other ends of the second springs are connected with the second blocking pieces, and the outer circles of the second blocking pieces are connected with the fifth hole in the boss; the clamping assembly comprises a lower clamping piece and an upper clamping piece, the lower clamping piece is arranged on the top surface of the plate body, one side of the lower clamping piece is rotatably connected with one side of the upper clamping piece, the other side of the upper clamping piece is buckled and locked with the other side of the lower clamping piece, a buckle is arranged on the upper clamping piece, a clamping groove matched with the buckle is formed in the lower clamping piece, a first air bag is arranged on the upper clamping piece, and a silica gel body is arranged in the lower clamping piece; the fixed plate is arranged on the top surface of the plate body, and the second air bag is arranged on the fixed plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the technical scheme, the fixed assembly is fixed on the sickbed, the rotating assembly is rotatably connected with the fixed assembly, the arm supporting assembly slides and moves relative to the rotating assembly, the arm supporting assembly is detachable relative to the rotating assembly, and the arm supporting assembly is provided with the clamping assembly for fixing the arm and the primary and secondary binding bands for fixing the arm and the hand.

2. According to the technical scheme, a simple fixing and rotating structure is adopted, the operation is simple and convenient, and the puncture is convenient.

Drawings

Fig. 1 is a schematic view of a fixture.

Fig. 2 is a schematic view of a fixing assembly.

FIG. 3 is a schematic view of a rotating plate and two first moveable members.

FIG. 4 is an axial view of the pivotal plate and the two first movable members.

FIG. 5 is a schematic view of the first movable member.

Fig. 6 is a schematic view of a spin cap.

Figure 7 is a schematic view of a hand support assembly.

FIG. 8 is an axial view of the support plate and the two second movable members.

Fig. 9 is a partial enlarged view of a in fig. 8.

FIG. 10 is an isometric view of the arm support assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to fig. 1 to 10 in the embodiments of the present invention.

It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other, so that the specific meaning of the terms in the utility model can be understood by those skilled in the art.

Example 1

As shown in fig. 1, a radial artery puncture auxiliary fixing device comprises a fixing component 1, a rotating component 2 and an arm supporting component 3, wherein the fixing component 1 is fixed on a sickbed, the rotating component 2 is arranged on the fixing component 1, the rotating component 2 is rotatably connected with the fixing component 1, the arm supporting component 3 is arranged on the rotating component 2, a sliding groove is formed in the rotating component 2, the arm supporting component 3 is arranged in the sliding groove, and the arm supporting component 3 can slide relative to the rotating component 2.

As shown in fig. 1, 2 and 6, the fixing assembly 1 includes a fixing member 11, a connecting seat 12 and an adjusting assembly, the connecting seat 12 is disposed on the fixing member 11, the adjusting assembly is disposed on the fixing member 11, the rotating assembly 2 includes a rotating plate 21, a rotating cap 22 and two first movable members, the rotating plate 21 is connected with the connecting seat 12, and the two first movable members are disposed on the rotating plate 21; the arm supporting assembly 3 includes a supporting plate 31, a clamping assembly, a fixing plate 32 and two second moving members 33, the supporting plate 31 is disposed on the rotating plate 21, and the clamping assembly, the fixing plate 32 and the two second moving members 33 are disposed on the supporting plate 31.

As shown in fig. 2, the fixing member 11 is C-shaped, two surfaces defining the fixing member 11 are a top surface and a bottom surface, the connecting seat 12 is disposed on the top surface of the fixing member 11, the connecting seat 12 is provided with a second hole, the bottom surface of the fixing member 11 is provided with a first hole, the adjusting assembly is disposed in the first hole, the adjusting assembly includes a top plate 13, a screw rod 14 and a rotating plate 15, the screw rod 14 penetrates through the first hole, the top plate 13 is disposed at the upper end of the screw rod 14, the rotating plate 15 is disposed at the lower end of the screw rod 14, and the screw rod 14 is in threaded connection with the first hole.

Fixing piece 11 adopts C type channel steel, connecting seat 12 adopts the steel sheet preparation, fixing piece 11 and connecting seat 12 welded fastening, the adjustment subassembly adopts the metalwork, the first hole on the fixing piece 11 bottom surface is the screw hole, first hole and 14 threaded connection of screw rod, the second hole on connecting seat 12 is the screw hole, during the use, adjust the subassembly earlier and adjust to maximum position, block fixing piece 11 on the bedside of sick bed, to the rotation of adjustment subassembly, make top piece 13 support the sick bed, realize fixedly.

As shown in fig. 3, one end of the rotating plate 21 is arc-shaped, two faces of the rotating plate 21 are defined as a top face and a bottom face, a first linear chute 23 is formed on the top face of the rotating plate 21, two grooves 24 are formed on two side faces of the rotating plate 21, a plurality of fourth holes 231 are formed in a partition plate between the first linear chute 23 and the two grooves 24, the number of the fourth holes 231 is multiple, the fourth holes are symmetrically distributed on two sides, a third hole is formed in the arc-shaped end of the step of the rotating plate 21, the third hole is connected with the connecting base 12, and two first moving members are correspondingly arranged in the two grooves 24.

The rotating plate 21 is made of medical hard plastic, one end of the rotating plate 21 is provided with a step and is arc-shaped, a third hole at the arc end of the rotating plate 21 is sleeved on the connecting seat 12 and is fixed through the rotating cap 22, the rest part of the rotating plate 21 is provided with a first linear sliding groove 23, two side edges of the rotating plate 21 are provided with two grooves 24, a plurality of fourth holes 231 are formed in a partition plate between the first linear sliding groove 23 and the two grooves 24, and the fourth holes 231 are communicated with the two grooves 24 and the first linear sliding groove 23.

As shown in fig. 3 and 4, the first movable member includes a plurality of first movable pins 25, a first movable plate 26, two first blocking plates 27, two first springs 28 and a pressing block 29, one end of each of the plurality of first movable pins 25 is disposed on one side of the first movable plate 26, the pressing block 29 is disposed on the other side of the first movable plate 26, one end of each of the two first springs 28 and the plurality of first movable pins 25 are disposed on the same side of the first movable plate 26, the two first springs 28 are disposed at two ends of the first movable plate 26, one end of each of the two first blocking plates (27) is disposed at the other end of each of the two first springs 28, the other ends of the two first blocking plates 27 are connected to the groove 24, the plurality of first movable pins 25 correspond to the plurality of four holes, the other ends of the plurality of first movable pins 25 are arc-shaped, and the arc ends have smooth surfaces for being inserted into the holes.

The plurality of first movable pins 25, the first movable plate 26 and the two first blocking plates 27 are made of medical hard plastics, the first spring 28 is made of a compression spring, the compression spring is deformed under pressure and recovers after pressure is removed, the first movable plate 26 is connected with the plurality of first movable pins 25 in a hot melting mode, the two first springs 28 are connected with the first movable plate 26 in a hot melting mode, the two first blocking plates 27 are connected with the two first springs 28 in a hot melting mode, and the pressing block 29 is connected with the first movable plate 26 in a hot melting mode.

In use, the pressing block 29 is pressed, the plurality of first movable pins 25 move along with the first movable plate 26, the first spring 28 is deformed by the force, the plurality of first movable pins 25 extend into the fourth holes 231, and the supporting plate 31 can be moved or removed.

As shown in fig. 5, the rotating cap 22 includes a cap body 221 and a connection body 222, and the connection body 222 is disposed on the cap body 221. The cap body 221 and the connector 222 are made of medical hard plastics, the cap body 221 and the connector 222 are connected in a hot melting mode, an external thread is arranged on the connector 222, and the connector 222 is in threaded connection with a second hole in the connecting base 12.

When the fixing device is used, the rotating plate 21 is sleeved on the connecting seat 12, the rotating plate 21 and the fixing component 1 are fixed through the matching of the rotating cap 22 and the connecting seat 12, and the rotating angle of the rotating plate 21 is adjusted through the rotating cap 22.

As shown in fig. 6, 7 and 8, the supporting plate 31 includes a plate body 311, a boss 312 and a primary and secondary binding belt 313, two faces of the plate body 311 are defined as a top face and a bottom face, the boss 312 is disposed at a central position of the bottom face of the plate body 311, fifth holes are disposed at two ends of the boss 312, and the primary and secondary binding belt 313 is disposed at one side of the fixing plate 32; the two second movable members 33 are disposed in the fifth hole, each second movable member 33 includes a second movable pin 331, a second movable ring 332, a second spring 333 and a second stopper 334, the second movable pin 331 is connected to the second movable ring 332, one end of the second spring 333 is connected to the second movable ring 332, the other end of the second spring is connected to the second stopper 334, and an outer circle of the second stopper 334 is connected to the fifth hole on the boss 312.

The supporting plate 31 is made of medical hard plastic, the plate body 311 and the boss 312 are integrally formed, one end of the primary and secondary bandage 313 is in hot-melt connection with the plate body 311, the other end of the primary and secondary bandage 313 is adhered through a magic tape, the second movable pin 331, the second movable ring 332 and the second baffle 334 are made of medical hard plastic, the second spring 333 is made of a pressure spring, one end of the second movable pin 331 is an arc end, the other end of the second movable pin 331 is a plane, the arc end is provided with a smooth surface which is convenient to insert into the hole, the plane of the other end of the second movable pin 331 is in hot-melt connection with the second movable ring 332 and the second baffle 334, two ends of the second spring 333 are respectively in hot-melt connection with the second movable ring 332 and the second baffle 334, when the second movable member 33 is installed into the fifth hole, the excircle of the second baffle 334 is in contact with the bottom surface of the fifth hole, and the excircle of the second baffle is in hot-melt connection with the inner circle of the fifth hole.

When the device is used, the second movable pin 331 is stressed, the second spring 333 is pressed to deform, the second movable pin 331 moves into the fifth hole, the support plate 31 is separated from the first linear sliding groove 23 of the rotating plate 21, when the support plate 31 is installed in the first linear sliding groove 23 of the rotating plate 21, one side edge of the support plate 31 is rotated in, the second movable pin 331 on the other side edge is pressed down, the other side edge of the support plate 31 is also installed in the first linear sliding groove 23, when the boss 312 of the support plate 31 is installed in the first linear sliding groove 23, the second movable pin 331 in the second movable member 33 automatically extends under the action of the second spring 333, the second movable pin 331 is located in the groove 24, and the support plate 31 slides relative to the rotating plate 21.

As shown in fig. 9, the clamping assembly includes a lower clamping piece 34 and an upper clamping piece 35, the lower clamping piece 34 is disposed on the top surface of the plate 311, one side of the lower clamping piece 34 is rotatably connected with one side of the upper clamping piece 35, the other side of the upper clamping piece 35 is locked with the other side of the lower clamping piece 34 in a snap fit manner, a buckle 351 is disposed on the upper clamping piece 35, a clamping groove 341 is disposed on the lower clamping piece 34 in a snap fit manner, a first air bag 352 is disposed on the upper clamping piece 35, and a silicone body is disposed on the lower clamping piece 34.

Lower folder 34 adopts medical rigid plastic, the lower extreme and the plate body 311 hot melt of lower folder 34 are connected, go up folder 35 and adopt medical rigid plastic, the one side of going up folder 35 rotates with one side of lower folder 34 and is connected, be equipped with buckle 351 on the opposite side of going up folder 35, buckle 351 is the shape like the hook, buckle 351 has elasticity, extrusion little hook department inserts draw-in groove 341, press little hook department and deviate from draw-in groove 341, draw-in groove 341 of seting up on the opposite side of lower folder 34, the shape of draw-in groove 341 is L type groove, the both ends in L type groove all communicate with each other with the outside, buckle 351 inserts from an opening, press down from another opening part, buckle 351 pops out, go up folder 35 and open.

As shown in fig. 6, the fixing plate 32 is disposed on the top surface of the plate body 311, the second air cell 321 is disposed on the fixing plate 32, and the elastic body 36 is disposed on one side of the supporting plate 31.

The fixing plate 32 is made of medical hard plastic, the bottom surface of the fixing plate 32 is connected with the plate body 311 in a hot melting mode, the upper end face of the fixing plate 32 is an arc-shaped face, and the second air bag 321 is connected with the upper end face of the fixing plate 32 in a hot melting mode.

During the use, go up folder 35 and open, place the arm on folder 34 down, close folder 35, make buckle 351 and draw-in groove 341 cooperation, the wrist is placed on fixed plate 32, through adjusting first gasbag 352, the colloidal silica on folder 34 down, the colloidal silica has the effect that increases frictional force, improves the comfort level, it is fixed with the arm with folder 34 down to go up folder 35, adjust second gasbag 321, the position that makes the wrist is adjusted to suitable position, fix the palm position through primary and secondary bandage 313, through bed hedgehopping wrist, the puncture of the radial artery of being convenient for.

The radial artery puncture auxiliary fixing device of the embodiment is used as follows: the user fixes fixed subassembly 1 on the bedside of sick bed earlier, according to the circumstances during concrete operation, adjustment swivel cap 22, make runner assembly 2 rotate to suitable angle, press two first moving parts, backup pad 31 slides in first straight line spout 23, get rid of the power on two first moving parts, two second moving parts in backup pad 31 insert in fourth hole 231, backup pad 31 and rotor plate 21 are spacing through the second moving part, open folder 35, place the arm on folder 34 down, the wrist is placed on fixed plate 32, close folder 35, the fixed palm position of primary and secondary bandage 313, be convenient for through bed hedgehopping wrist, be convenient for the puncture of radial artery.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.

Claims

1. The utility model provides a radial artery puncture auxiliary fixture which characterized in that: comprises a fixed component (1), a rotating component (2) and an arm supporting component (3), the fixed component (1) is fixed on a sickbed, the rotating component (2) is arranged on the fixed component (1), the rotating component (2) is rotationally connected with the fixed component (1), the arm supporting component (3) is arranged on the rotating component (2), a chute is arranged on the rotating component (2), the arm supporting component (3) is arranged in the chute, the arm supporting component (3) can slide relative to the rotating component (2), the fixed component (1) comprises a fixed part (11), a connecting seat (12) and an adjusting component, the connecting seat (12) is arranged on the fixed part (11), the adjusting component is arranged on the fixed part (11), the rotating component (2) comprises a rotating plate (21), a rotating cap (22) and two first moving parts, the rotating plate (21) is connected with the connecting seat (12), the two first movable pieces are arranged on the rotating plate (21); the arm supporting assembly (3) comprises a supporting plate (31), a clamping assembly, a fixing plate (32) and two second moving parts (33), the supporting plate (31) is arranged on the rotating plate (21), and the clamping assembly, the fixing plate (32) and the two second moving parts (33) are arranged on the supporting plate (31).

2. The radial artery puncture assisting fixture device of claim 1, wherein: fixing piece (11) are the C type form, two faces that define fixing piece (11) are top surface and bottom surface, connecting seat (12) set up the top surface on fixing piece (11), set up the second hole on connecting seat (12), set up first hole on the bottom surface of fixing piece (11), the setting of adjustment subassembly is in first hole, the adjustment subassembly includes top piece (13), screw rod (14) and rotor plate (15), screw rod (14) run through first hole, top piece (13) set up the upper end at screw rod (14), rotor plate (15) set up the lower extreme at screw rod (14), screw rod (14) and first hole threaded connection.

3. The radial artery puncture assisting fixture device of claim 1, wherein: one end of the rotating plate (21) is in a step arc shape, two faces of the rotating plate (21) are defined as a top face and a bottom face, a first linear sliding groove (23) is formed in the top face of the rotating plate (21), two grooves (24) are formed in two side faces of the rotating plate (21), a plurality of fourth holes (231) are formed in a partition plate between the first linear sliding groove (23) and the two grooves (24), the number of the fourth holes (231) is multiple, the fourth holes are symmetrically distributed on two sides, a third hole is formed in the step arc-shaped end of the rotating plate (21), the third hole is connected with the connecting seat (12), two first movable parts are correspondingly arranged in the two grooves (24), each first movable part comprises a plurality of first movable pins (25), a first movable plate (26), two first blocking pieces (27), two first springs (28) and a pressing block (29), one end of each first movable pin (25) is arranged on one side of the first movable plate (26), the pressing block (29) is arranged on the other side of the first movable plate (26), one ends of the two first springs (28) and the plurality of first movable pins (25) are arranged on the same side of the first movable plate (26), the two first springs (28) are positioned at two ends of the first movable plate (26), one ends of the two first blocking pieces (27) are arranged at the other ends of the two first springs (28), the other ends of the two first blocking pieces (27) are connected with the groove (24), the plurality of first movable pins (25) correspond to the plurality of four holes, and the other ends of the plurality of first movable pins (25) are arc-shaped; the rotating cap (22) comprises a cap body (221) and a connecting body (222), and the connecting body (222) is arranged on the cap body (221).

4. The radial artery puncture assisting fixture device of claim 1, wherein: the supporting plate (31) comprises a plate body (311), a boss (312) and a primary-secondary binding band (313), two surfaces of the plate body (311) are defined as a top surface and a bottom surface, the boss (312) is arranged in the center of the bottom surface of the plate body (311), fifth holes are formed in two ends of the boss (312), and the primary-secondary binding band (313) is arranged on one side of the plate body (311); the two second movable pieces (33) are arranged in the fifth hole, each second movable piece (33) comprises a second movable pin (331), a second movable ring (332), a second spring (333) and a second blocking piece (334), the second movable pin (331) is connected with the second movable ring (332), one end of the second spring (333) is connected with the second movable ring (332), the other end of the second spring is connected with the second blocking piece (334), and the excircle of the second blocking piece (334) is connected with the fifth hole in the boss (312); the clamping assembly comprises a lower clamping piece (34) and an upper clamping piece (35), the lower clamping piece (34) is arranged on the top surface of the plate body (311), one side of the lower clamping piece (34) is rotatably connected with one side of the upper clamping piece (35), the other side of the upper clamping piece (35) is locked with the other side of the lower clamping piece (34) in a snap fit manner, a buckle (351) is arranged on the upper clamping piece (35), a clamping groove (341) matched with the buckle is formed in the lower clamping piece (34), a first air bag (352) is arranged on the upper clamping piece (35), and a silica gel body is arranged in the lower clamping piece (34); the fixing plate (32) is arranged on the top surface of the plate body (311), the fixing plate (32) is close to the primary and secondary binding bands (313), and the fixing plate (32) is provided with a second air bag (321).