CN215740839U - Dialysis catheter fixing device - Google Patents

Abstract

The utility model provides a dialysis catheter fixing device, and relates to the technical field of dialysis auxiliary equipment. Wherein, this kind of dialysis catheter fixing device contains clip subassembly and fixed subassembly. The clip assembly includes a body. The main body comprises a first clamping part and a second clamping part arranged on the first clamping part. A clamping gap for accommodating an external object is arranged between the first clamping part and the second clamping part. The fixing component comprises a fixing seat configured on the clamp component. The fixing seat is provided with a pipe groove for accommodating the guide pipe. The clamp assembly can clamp an external object in the clamping gap so that the dialysis catheter fixing device is fixed to the external object. The tube slots can grip the conduit to secure the conduit. The dialysis catheter fixing device can fix the dialysis tubing on an external object, thereby fixing the dialysis catheter. Prevent at long-time dialysis in-process, the dialysis catheter flagging has further prevented that medical personnel from stumbling the dialysis catheter, causes the injury to patient, has fine practical meaning.

Description

Dialysis catheter fixing device

Technical Field

The utility model relates to the technical field of dialysis auxiliary equipment, in particular to a dialysis catheter fixing device.

Background

When a patient is dialyzed, the blood of the patient needs to be conveyed to a dialysis machine by a catheter, and then the blood is conveyed to the body of the patient after dialysis. Due to the long dialysis time, the catheter needs to stay on the human body for a long time during dialysis. Therefore, there is a risk of being pulled out. Once pulled, the patient may be detached from the patient and hurt.

In the prior art, the adhesive tape is usually directly stuck and fixed on the human body. The fixing mode is not only not beautiful, but also can not be stuck and fixed on materials such as quilts, clothes and the like generally, and can only be stuck on the skin, thereby bringing poor treatment experience to patients.

In view of the above, the applicant has specifically proposed the present application after studying the existing technologies.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a dialysis catheter fixing device.

The dialysis catheter fixing device comprises a clamp component and a fixing component.

The clip assembly includes a body. The main body comprises a first clamping part and a second clamping part arranged on the first clamping part. A clamping gap for accommodating an external object is arranged between the first clamping part and the second clamping part. The fixing component comprises a fixing seat configured on the clamp component. The fixing seat is provided with a pipe groove for accommodating the guide pipe. The clamp assembly can clamp an external object in the clamping gap so that the dialysis catheter fixing device is fixed to the external object. The tube slots can grip the conduit to secure the conduit.

In an alternative embodiment, the clip assembly further includes a clip member movably disposed on the body. The clamping piece is used for clamping an external object in the clamping gap.

In an alternative embodiment, the first clamping portion and/or the second clamping portion is provided with a plurality of anti-slip grooves and/or anti-slip protrusions to prevent the foreign object in the clamping gap from being removed.

In an alternative embodiment, the clamping member comprises an abutment portion and a driving portion arranged at the abutment portion. The abutting part is rotatably arranged on the first clamping part so as to switch between a clamping state and a releasing state. The first clamping part is provided with a clamping hole for the abutting part to pass through. The abutting part can penetrate through the clamping hole and extend into the clamping gap in the clamping state so as to clamp an external object. The driving part can be positioned on one side of the first clamping part, which is far away from the clamping gap, in the clamping state so as to drive the abutting part.

In an alternative embodiment, the abutment portion is hinged at one end to the first clamping portion and at the other end to the driving portion. The middle is provided with a tip used for abutting against an external object.

In an alternative embodiment, the side wall of the tube channel is provided with a plurality of clamping grooves and/or clamping protrusions.

In an alternative embodiment, the retaining assembly further includes a protective cover movably disposed over the clip assembly or the retaining base. The protective cover can span the duct slot to catch objects in the duct slot.

In an alternative embodiment, one end of the protective cover is rotatably disposed on the clip assembly or the fixing base, and the other end is fastened to the clip assembly or the fixing base through a fastening structure.

In an alternative embodiment, the fixing assembly includes a first fixing seat configured to the clip assembly. The first fixing seat is provided with a first pipe groove. The first pipe chase includes a first straight segment and a first arcuate segment.

In an alternative embodiment, the fixing assembly includes a third fixing seat disposed on the clip assembly. The first fixing seat is provided with a third pipe groove. The first pipe chase includes a third straight segment and a third arcuate segment.

In an alternative embodiment, the fixing assembly includes a second fixing seat configured to the clip assembly. The first fixing seat is provided with a second pipe groove. The first pipe chase includes a second straight segment and a second arcuate segment. The axis of the second arc-shaped section and the axis of the first arc-shaped section are positioned on the same arc line.

In an alternative embodiment, the fixing assembly includes a fourth fixing seat disposed on the clip assembly. The first fixing seat is provided with a fourth pipe groove. The first pipe chase includes a fourth straight segment and a fourth arcuate segment. The axis of the third arc-shaped section and the axis of the fourth arc-shaped section are positioned on the same arc line.

In an alternative embodiment, the first and third straight segments are parallel. The second straight section and the fourth straight section are parallel.

In an alternative embodiment, the dialysis catheter securement device further comprises a connection hub. The connecting seat comprises a connecting part and a clamping groove part, wherein the connecting part is used for being fixed on an external object, and the clamping groove part is arranged on the connecting part and used for fixing the clamp assembly. A clamping gap is arranged between the connecting part and the clamping groove part for embedding the clamp assembly.

In an alternative embodiment, the driving portion is plate-shaped and extends outward from the end of the abutting portion to be inserted into the clamping gap.

In an alternative embodiment, the slot portion is provided with a receiving groove for receiving the abutting portion, and the opening of the receiving groove is gradually enlarged outwards.

In an alternative embodiment, a magic buckle or adhesive sticker is arranged on one side of the connecting part away from the clamping groove part.

By adopting the technical scheme, the utility model can obtain the following technical effects:

the dialysis catheter fixing device is fixed on an external object (such as a quilt or clothes) through the clamp component, and then the dialysis catheter is fixed on the dialysis catheter fixing device through the fixing component, so that the dialysis catheter is fixed. Prevent at long-time dialysis in-process, the dialysis catheter flagging has further prevented that medical personnel from stumbling the dialysis catheter, causes the injury to patient, has fine practical meaning.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an isometric view of a dialysis catheter securement device from a first perspective.

Fig. 2 is an isometric view of a dialysis catheter securement device from a second perspective (with the protective cover in an open state).

Fig. 3 is an isometric view of a dialysis catheter securement device from a second perspective (with the dialysis catheter hidden).

Fig. 4 is a top view of a dialysis catheter fixing device.

Fig. 5 is a sectional view of the holder.

Fig. 6 is an isometric view of a sixth perspective of a dialysis catheter securement device.

Fig. 7 is an isometric view of a sixth perspective of a dialysis catheter securement device (with the clip assembly in an open state).

Fig. 8 is an isometric view of a seventh perspective of a dialysis catheter securement device.

Fig. 9 is an isometric view of a clamp of the dialysis catheter securement device disposed on the hub.

The labels in the figure are: 1-a fixing component, 2-a clip component, 3-a conduit, 4-a protective cover, 5-a second fixed seat, 6-a second pipe groove, 7-a third pipe groove, 8-a third fixed seat, 9-a fourth pipe groove, 10-a fourth fixed seat, 11-a first pipe groove, 12-a first fixed seat, 13-a clamping bulge, 14-a second clamping part, 15-a clamping gap, 16-a first clamping part, 17-a clamping part, 18-a driving part, 19-an abutting part, 20-a clamping hole, 21-a main body, 22-a connecting seat, 23-a connecting part, 24-an accommodating groove and 25-a clamping groove part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 to 9, the embodiment of the present invention provides a dialysis catheter fixing device, which comprises a clip assembly 2 and a fixing assembly 1.

The clip assembly 2 includes a body 21. The main body 21 includes a first clamping portion 16 and a second clamping portion 14 disposed at the first clamping portion 16. A clamping gap 15 for accommodating an external object is provided between the first clamping portion 16 and the second clamping portion 14. The fixing component 1 comprises a fixing seat arranged on the clamp component 2. The fixing base is provided with a pipe groove for accommodating the guide pipe 3. The clamp assembly 2 is capable of clamping an external object to the clamping gap 15 to secure the dialysis catheter 3 fixation device to the external object. The socket is capable of gripping the conduit 3 to secure the conduit 3.

Specifically, the dialysis catheter 3 is fixed by fixing the dialysis catheter 3 fixing means to an external object (for example, a quilt or clothes) by the clip assembly 2 and then fixing the dialysis catheter 3 to the dialysis catheter 3 fixing means by the fixing assembly 1. Prevent at long-time dialysis in-process, dialysis catheter 3 flagging has further prevented that medical personnel from stumbling on dialysis catheter 3, causes the injury to patient, has fine practical meaning.

In an alternative embodiment of the present invention, as shown in fig. 6 and 7, the clip assembly 2 further includes a movable clip member 17 disposed on the main body 21. The clamping member 17 is used to clamp an external object to the clamping gap 15. Specifically, the dialysis catheter 3 fixing device can be more firmly fixed to an external object by the holding member 17 to hold a flexible object such as clothes or a quilt. In other embodiments, the first clamping portion 16 and the second clamping portion 14 may be made of an elastic material and configured to always have a tendency to approach each other, so as to directly lean against the first clamping portion 16 and the second clamping portion 14 to clamp an external object, which has a simple structure, a smaller volume and a good practical significance. The present invention is not particularly limited in this regard.

As shown in fig. 6 and 7, in an alternative embodiment of the present invention based on the above-mentioned embodiments, the holder 17 includes an abutting portion 19 and a driving portion 18 disposed on the abutting portion 19. The contact portion 19 is rotatably disposed in the first clamping portion 16 to be switched between a clamped state and a released state. The first clamping portion 16 is provided with a clamping hole 20 through which the abutment portion 19 passes. The abutting portion 19 can pass through the clamping hole 20 and protrude into the clamping gap 15 in the clamped state to clamp the external object. The driving portion 18 can be located on a side of the first clamping portion 16 away from the clamping gap 15 in the clamped state to drive the abutting portion 19. Preferably, the abutment portion 19 is hinged at one end to the first clamping portion 16 and at the other end to the driving portion 18. The middle is provided with a tip used for abutting against an external object.

Specifically, the clamping hole 20 is formed in the first clamping portion 16, so that the integrity between the inner side walls of the clamping gap 15 can be maintained, and therefore, an external object can better enter the clamping gap 15. The abutting portion 19 is hinged to the first clamping member 17 and passes through the clamping hole 20, thereby firmly clamping the external object in the clamping gap 15. The abutting portion 19 is provided to have a certain elasticity to apply an abutting force to an external object. Preferably, the abutting portion 19 is composed of two arcs, so as to form an hollowed-out structure, and a tip for abutting against the external object is formed at a joint of the two arcs, so as to ensure that the external object is better clamped in the clamping gap 15. It is of practical significance to provide the driving portion 18 at the end of the abutting portion 19 so as to drive the abutting portion 19 to switch between the clamping position and the open position.

In an alternative embodiment of the present invention, as shown in fig. 6 and 7, on the basis of the above-mentioned embodiments, the first clamping portion 16 and/or the second clamping portion 14 are provided with a plurality of anti-slip grooves and/or anti-slip protrusions to prevent the foreign objects in the clamping gap 15 from being removed. Preferably, in the present embodiment, a stud is provided on the second clamping portion 14. So as to cooperate with a clamping member 17 arranged on the first clamping portion 16. In other embodiments, either or both of the first clamping portion 16 and the second clamping portion 14 may be provided, or an anti-slip groove may be used to prevent foreign objects from falling out of the clamping gap 15.

As shown in fig. 5, on the basis of the above embodiment, in an alternative embodiment of the present invention, the side wall of the pipe groove is provided with a plurality of clamping grooves and/or clamping protrusions 13. Specifically, in the present embodiment, the cross section of the tube groove is a circular arc with an angle exceeding 180 degrees. The fixing seat is arranged to have certain elasticity so as to clamp the conduit 3 in the pipe groove. In order to further improve the stability of the conduit 3 in the conduit groove, a clamping groove or a clamping protrusion 13 is arranged on the side wall of the conduit groove to increase the clamping force of the fixing seat, so that the conduit 3 is prevented from being easily separated from the conduit groove, the function of the clamping groove or the clamping groove is the same as that of the anti-skid protrusion or the anti-skid groove, and the clamping groove or the clamping groove has good practical significance. Preferably, in the present embodiment, a clamping protrusion 13 is provided on the side wall of the pipe groove.

As shown in fig. 1 to 3, on the basis of the above embodiments, in an alternative embodiment of the present invention, the fixing assembly 1 further includes a protective cover 4 movably disposed on the clip assembly 2 or the fixing base. The protective cover 4 can be placed across the channel to retain the object in the channel of the catheter 3. Preferably, one end of the protection cover 4 is rotatably disposed on the clip component 2 or the fixing seat, and the other end is fastened to the clip component 2 or the fixing seat through a fastening structure.

In the present embodiment, the fixing base is disposed on a side of the first clamping portion 16 away from the clamping gap 15. One end of the protective cover 4 is rotatably hinged to one side of the second clamping portion 14 away from the clamping gap 15, and the other end of the protective cover is buckled to one side of the second clamping portion 14 away from the clamping gap 15 through a buckling structure. Through the mode of the rotatory other end buckle of one end, not only convenient operation can prevent moreover that visor 4 from losing, has fine practical meaning. In other embodiments, both ends of the second clamping portion 14 may be fastened to a side of the second clamping portion 14 away from the clamping gap 15, which is not limited in the present invention.

As shown in fig. 2 to 4, on the basis of the above embodiments, in an alternative embodiment of the present invention, the fixing assembly 1 includes a first fixing seat 12 disposed on the clip assembly 2. The first fixing seat 12 is provided with a first pipe groove 11. The first pipe chase 11 includes a first straight section and a first arcuate section. In particular, the first pipe groove 11 is arranged in a manner of an arc-shaped section and a straight section, so that the stability of the dialysis catheter 3 fixed in the pipe groove can be further increased. Preventing the guide tube 3 from falling off from the tube groove.

Preferably, the fixing assembly 1 comprises a third fixing seat 8 arranged on the clip assembly 2. The first fixing seat 12 is provided with a third pipe groove 7. The first pipe chase 11 includes a third straight section and a third arcuate section. And the first straight section and the third straight section are parallel. Specifically, during dialysis, there are generally two catheters 3, one for transporting blood from the body to the dialysis machine, and the other for transporting blood from the dialysis machine back to the body. Therefore, two fixing seats are arranged on one side, far away from the clamping gap 15, of the second clamping part 14, so that the two guide pipes 3 can be better fixed together, and the clamping device has a good practical significance.

As shown in fig. 2 to 4, on the basis of the above embodiments, in an alternative embodiment of the present invention, the fixing assembly 1 includes a second fixing seat 5 disposed on the clip assembly 2. The first fixing seat 12 is provided with a second pipe groove 6. The first pipe chase 11 includes a second straight section and a second arcuate section. The axis of the second arc-shaped section and the axis of the first arc-shaped section are positioned on the same arc line. The fixing unit 1 includes a fourth fixing base 10 disposed on the clip unit 2. The first holder 12 is provided with a fourth duct 9. The first pipe chase 11 includes a fourth straight section and a fourth arc-shaped section. The axis of the fourth arc-shaped section and the axis of the third arc-shaped section are positioned on the same arc line. The second straight section and the fourth straight section are parallel.

It can be understood that, first fixing base 12 and second fixing base 5, the interval sets up for pipe 3 can be the fixed of certain angle at dialysis pipe 3 fixing device, and be in unsettled state in the turning department, can not receive the extrusion, under the condition of the stability of further improvement pipe 3 fixing in the chase, guarantees pipe 3's smooth and easy, has fine practical meaning.

As shown in fig. 8 and 9, on the basis of the above embodiments, in an alternative embodiment of the present invention, the dialysis catheter 3 fixing device further comprises a connection seat 22. The connecting base 22 includes a connecting portion 23 for fixing to an external object, and a slot portion 25 disposed on the connecting portion 23 for fixing the clip assembly 2. A clamping gap is arranged between the connecting part 23 and the clamping groove part 25 for embedding the clamp assembly 2. In the embodiment, the connecting seat 22 is substantially in the shape of a thin plate, and a hook-and-loop fastener or an adhesive sticker is disposed on a side of the connecting portion 23 away from the slot portion 25 for fixing to an external device.

Preferably, the driving portion 18 is plate-shaped and extends outward from an end of the abutting portion 19 to be inserted into the clamping gap. In the present embodiment, the latching portion 25 is substantially plate-shaped, and is disposed in parallel on the connecting portion 23, and has a certain latching gap with the connecting portion 23, so that the driving portion 18 can be inserted into the latching gap. It can be understood that, when the driving portion 18 is inserted into the clamping gap, the clamping groove portion 25 abuts against the side of the first clamping portion 16 away from the clamping gap 15, so that the clamping member 17 cannot rotate, thereby forming a structure for hooking and fixing the clip assembly 2 on the connecting seat 22. At this time, the contact portion 19 abuts on the notch portion 25.

Preferably, the catching groove portion 25 is provided with a receiving groove 24 for receiving the abutting portion 19, and the receiving groove 24 is gradually enlarged toward the outside. Be provided with holding tank 24, carry on spacingly to butt joint portion 19, can effectual reduction clip subassembly 2 take place to rock on connecting seat 22. The hanging structure is more stable, and has good practical significance.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A dialysis catheter securement device, comprising:

a clip assembly (2) comprising a body (21); the main body (21) comprises a first clamping part (16) and a second clamping part (14) arranged on the first clamping part (16); a clamping gap (15) for accommodating an external object is arranged between the first clamping part (16) and the second clamping part (14);

a fixing component (1) comprising a fixing seat configured on the clamp component (2); the fixed seat is provided with a pipe groove for accommodating the guide pipe (3);

the clamp assembly (2) can clamp an external object to the clamping gap (15) so as to fix the dialysis catheter fixing device to the external object; the pipe groove can clamp the conduit (3) to fix the conduit (3).

2. The dialysis catheter fixing device according to claim 1, wherein the clip assembly (2) further comprises a clamp member (17) movably disposed on the main body (21); the clamping piece (17) is used for clamping an external object to the clamping gap (15).

3. A dialysis catheter fixing device according to claim 2, wherein the first clamping portion (16) and/or the second clamping portion (14) is provided with a plurality of anti-slip grooves and/or anti-slip protrusions to prevent foreign objects in the clamping gap (15) from escaping;

the holder (17) comprises an abutting part (19) and a driving part (18) arranged on the abutting part (19); the contact part (19) is rotatably arranged on the first clamping part (16) so as to switch between a clamping state and a releasing state; the first clamping portion (16) is provided with a clamping hole (20) through which the abutting portion (19) passes; the abutting part (19) can pass through the clamping hole (20) and extend into the clamping gap (15) in a clamping state so as to clamp an external object; the driving part (18) can be positioned on one side of the first clamping part (16) far away from the clamping gap (15) in a clamping state so as to drive the abutting part (19);

one end of the abutting part (19) is hinged to the first clamping part (16), and the other end of the abutting part is connected to the driving part (18); the middle is provided with a tip used for abutting against an external object.

4. A dialysis catheter fixing device according to claim 1, wherein the side wall of the channel is provided with a plurality of holding grooves and/or holding protrusions (13).

5. A dialysis catheter fixing device according to claim 1, wherein said fixing member (1) further comprises a protective cover (4) movably arranged on said clip member (2) or said fixing base; the protective cover (4) can cross the pipe groove to buckle objects in the groove of the catheter (3);

one end of the protective cover (4) is rotatably arranged on the clip component (2) or the fixed seat, and the other end of the protective cover is buckled on the clip component (2) or the fixed seat through a buckle structure.

6. A dialysis catheter fixing device according to claim 1, wherein the fixing member (1) comprises a first fixing base (12) provided to the clip member (2); the first fixed seat (12) is provided with a first pipe groove (11); the first pipe groove (11) comprises a first straight section and a first arc-shaped section.

7. A dialysis catheter fixing device according to claim 6, wherein the fixing member (1) comprises a second fixing seat (5) provided to the clip member (2); the first fixed seat (12) is provided with a second pipe groove (6); the first pipe groove (11) comprises a second straight section and a second arc-shaped section; the axis of the second arc-shaped section and the axis of the first arc-shaped section are positioned on the same arc line.

8. The dialysis catheter fixing device according to claim 7, wherein the fixing member (1) comprises a third fixing seat (8) provided to the clip member (2); the first fixed seat (12) is provided with a third pipe groove (7); the first pipe groove (11) comprises a third straight section and a third arc-shaped section;

the fixing component (1) comprises a fourth fixing seat (10) configured on the clamp component (2); the first fixed seat (12) is provided with a fourth pipe groove (9); the first pipe groove (11) comprises a fourth straight section and a fourth arc-shaped section; the axis of the third arc-shaped section and the axis of the fourth arc-shaped section are positioned on the same arc line; the first straight section and the third straight section are parallel; the second straight section and the fourth straight section are parallel.

9. A dialysis catheter fixing device according to claim 3, further comprising a connection seat (22); the connecting seat (22) comprises a connecting part (23) for fixing to an external object and a clamping groove part (25) which is arranged on the connecting part (23) and is used for fixing the clamp component (2); connecting portion (23) with be provided with the joint clearance between draw-in groove portion (25), be used for supplying clip subassembly (2) embedding.

10. The dialysis catheter fixing device according to claim 9, wherein the driving portion (18) has a plate shape and extends outward from an end of the abutting portion (19) to fit into the engagement gap;

the clamping groove part (25) is provided with an accommodating groove (24) for accommodating the abutting part (19), and the opening of the accommodating groove (24) is gradually enlarged outwards;

one side of the connecting part (23) far away from the clamping groove part (25) is provided with a magic buckle or adhesive sticker.

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