CN210530198U - Aluminum-wood composite wallboard - Google Patents

Abstract

The utility model relates to an aluminum-wood composite wallboard, which is characterized by comprising an aluminum plate, a wood plate, a left elastic positioning component and a right elastic positioning component, wherein the aluminum plate is provided with a left convex strip part, a right convex strip part, a left embedded groove, an embedded groove, a left baffle strip, a right baffle strip and a plurality of through holes; the wood board is provided with a left inserting strip, a right inserting strip, an embedding hole and an operating hole; the left elastic positioning assembly comprises a left spring and a left positioning strip, the left positioning strip can be transversely and movably embedded in the left embedded groove, and the left spring is arranged in the left embedded groove and elastically acts on the left positioning strip; the right elastic positioning assembly comprises a right spring and a right positioning strip, the right positioning strip can be transversely and movably embedded in the right embedded groove, and the right spring is arranged in the right embedded groove and elastically acts on the right positioning strip; the left insertion strip is inserted between the left positioning strip and the left retaining strip, and the right insertion strip is inserted between the right positioning strip and the right retaining strip. The utility model has the advantages of easy dismounting, high reliability, low maintenance cost, etc.

Description

Aluminum-wood composite wallboard

Technical Field

The utility model relates to a panel field, especially an aluminum-wood composite wall panel.

Background

At present, more and more people adopt wood boards to decorate wall surfaces. Wherein current plank adopts glue to fix on the wall mostly, in order to make the plank fix firmly, need often to use a large amount of glue. Because the glue contains formaldehyde, the installation mode is not environment-friendly and easily affects the health of human body. Meanwhile, the wood board is firmly fixed on the wall surface through glue, so that the wood board is difficult to detach from the wall surface when the wood board needs to be replaced, and the convenience of wood board maintenance is reduced; and generally requires the replacement of the object by engaging a professional, which leads to an increase in maintenance cost for the user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem and not enough, provide an aluminum-wood composite wall panel, this aluminum-wood composite wall panel has easy dismounting, reliability height, maintenance cost low grade advantage.

The technical scheme of the utility model is realized like this:

an aluminum-wood composite wallboard is characterized by comprising an aluminum plate, a wood plate, a left elastic positioning assembly and a right elastic positioning assembly, wherein the aluminum plate is vertically arranged, a left convex strip portion and a right convex strip portion are respectively arranged on the left side edge and the right side edge of the front surface of the aluminum plate, the left convex strip portion and the right convex strip portion are vertically arranged, a left embedding groove is formed in the right surface of the left convex strip portion, the left embedding groove is vertically extended to the upper end face and the lower end face of the left convex strip portion, a first limiting convex strip and a second limiting convex strip which are oppositely arranged are respectively arranged on the front groove wall and the rear groove wall of the left embedding groove, the first limiting convex strip and the second limiting convex strip are vertically arranged, the width of the first limiting convex strip is equal to that of the second limiting convex strip, a right embedding groove is formed in the left surface of the right convex strip portion, and the right embedding groove is vertically extended to the upper end face and the, the front and rear groove walls of the right embedding groove are respectively provided with a third limiting convex strip and a fourth limiting convex strip which are oppositely arranged, the third limiting convex strip and the fourth limiting convex strip are vertically arranged, the width of the third limiting convex strip is equal to that of the fourth limiting convex strip, the front surface of the aluminum plate is also provided with a left barrier strip and a right barrier strip which are arranged side by side from left to right, the left barrier strip and the right barrier strip are vertically arranged, the front surface of the aluminum plate between the left barrier strip and the right barrier strip is also provided with a plurality of through holes, and the through holes penetrate through the rear surface of the aluminum plate; the wood board is vertically arranged, a left inserting strip and a right inserting strip which are arranged side by side from left to right are arranged on the rear surface of the wood board, the left inserting strip and the right inserting strip are vertically arranged, an embedding hole is formed in the rear surface of the wood board, a metal ring is embedded in the embedding hole, the central line of the metal ring is parallel to the central line of the embedding hole, an operation hole is formed in the hole bottom of the embedding hole, the operation hole is communicated with the inner hole of the metal ring in a butt joint mode, the operation hole penetrates through the front surface of the wood board, and a detachable covering cap is embedded in the orifice of the operation hole in the front surface of the wood board; the left elastic positioning component comprises a left spring and a left positioning strip, the left positioning strip is vertically arranged, the front surface and the rear surface of the left positioning strip are respectively provided with a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove vertically extend, the first limiting groove and the second limiting groove extend to the upper end surface and the lower end surface of the left positioning strip, the width of the first limiting groove is equal to that of the second limiting groove, the width of the first limiting groove is larger than that of the first limiting raised strip, the right side edge of the front surface of the left positioning strip is provided with a left guide inclined plane, the left positioning strip can be transversely and movably embedded in the left embedded groove, the right wall of the left positioning strip is arranged outside the notch of the left embedded groove, the first limiting groove is covered on the first limiting raised strip, the second limiting groove is covered on the second limiting raised strip, the left spring is arranged in the left embedded groove, two ends of the left spring respectively act on the bottom of the left embedding groove and the left surface of the left positioning strip in an elastic manner; the right elastic positioning component comprises a right spring and a right positioning strip, the right positioning strip is vertically arranged, the front surface and the rear surface of the right positioning strip are respectively provided with a third limiting groove and a fourth limiting groove, the third limiting groove and the fourth limiting groove vertically extend, the third limiting groove and the fourth limiting groove extend to the upper end surface and the lower end surface of the right positioning strip, the width of the third limiting groove is equal to that of the fourth limiting groove, the width of the third limiting groove is larger than that of the third limiting raised strip, the left side edge of the front surface of the right positioning strip is provided with a right guide inclined surface, the right positioning strip can be transversely and movably embedded in the right embedded groove, the left wall of the right positioning strip is arranged outside the notch of the right embedded groove, the third limiting groove is covered on the third limiting raised strip, the fourth limiting groove is covered on the fourth limiting raised strip, the right spring is arranged in the right embedded groove, two ends of the right spring respectively act on the bottom of the right embedded groove and the right surface of the right positioning strip in an elastic manner; the left insertion strip is inserted between the left positioning strip and the left barrier strip, the left positioning strip is tightly pressed on the left surface of the left insertion strip, the left insertion strip is also tightly pressed on the left wall of the left barrier strip, the right insertion strip is inserted between the right positioning strip and the right barrier strip, the right positioning strip is tightly pressed on the right surface of the right insertion strip, and the right insertion strip is also tightly pressed on the right wall of the right barrier strip.

The utility model has the advantages that: through the perforated setting, can be convenient for fix aluminum plate on the wall through the screw, can avoid the use of glue like this, its ten minutes environmental protection to avoid it to cause the influence to people's health. Can know through foretell structural design, can make left location strip, right location strip homoenergetic realize transverse motion, and left spring can give right effort of left location strip, right spring can give left effort of right location strip, the cartridge of left side cartridge strip, right cartridge strip of can being convenient for like this, can play fine effect of compressing tightly to left cartridge strip, right cartridge strip again, this convenience that can not only improve the plank installation can also improve the reliability of plank installation. Through the arrangement of the left blocking strip, the left insertion strip can be blocked, so that the left insertion strip can be prevented from being damaged by the jacking of the left positioning strip; similarly, the right insertion strip can be resisted by the right blocking strip, so that the right insertion strip can be prevented from being damaged by the right positioning strip; therefore, the reliability of the aluminum-wood composite wallboard can be effectively improved. Through opening out the handle hole and embedding the hole on the plank, can make things convenient for people to put the instrument with the hook and hook the plank to guarantee that the plank dismantlement has higher convenience. Therefore, when the wood board needs to be replaced, the aluminum plate does not need to be replaced, and the accuracy and the reliability of the installation and the positioning of the wood board are ensured; and the disassembly and the assembly of the wood board are very simple, and the user can finish the disassembly and the assembly by himself, so that the convenience of maintaining the wood board is improved, and the cost of maintaining the wood board is reduced. The metal ring is embedded in the embedding hole, so that the hooking tool can be prevented from being directly hooked on the wood board, and the wood board is prevented from being damaged by hooking; therefore, when the wood board is disassembled and maintained, the wood board can be prevented from being damaged in the disassembling process. Through the setting that hides the block, can play the effect that shields to the handle hole, both can avoid like this that the dust enters into between plank and the aluminum plate, can also avoid the aesthetic property of aluminum-wood composite wall panel to receive the influence. The arrangement of the left guide inclined plane is beneficial to improving the convenience of the insertion of the left insertion strip; the arrangement of the right guide inclined plane is beneficial to improving the convenience of the insertion of the right insertion strip; this further improves the convenience of installation of the wooden board.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the aluminum plate of the present invention.

Fig. 3 is a schematic structural view of the middle wood board of the present invention.

Fig. 4 is a schematic structural view of the middle left elastic positioning assembly of the present invention.

Fig. 5 is a schematic structural view of the middle right elastic positioning assembly of the present invention.

Fig. 6 is a schematic view of the usage state of the present invention.

Detailed Description

It should be noted that all the directional indicators (such as left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1, the aluminum-wood composite wall panel of the present invention comprises an aluminum plate 1, a wood plate 2, a left elastic positioning assembly 3, and a right elastic positioning assembly 4, wherein, as shown in fig. 2, the aluminum plate 1 is vertically disposed, the left and right sides of the front surface of the aluminum plate 1 are respectively provided with a left convex portion 11 and a right convex portion 12, and the left convex portion 11 and the right convex portion 12 are both vertically disposed, the right surface of the left convex portion 11 is provided with a left embedding groove 111, and the left embedding groove 111 vertically extends to the upper and lower end surfaces of the left convex portion 11, the front and rear groove walls of the left embedding groove 111 are respectively provided with a first limiting convex strip 112 and a second limiting convex strip 113 which are oppositely disposed, and the first limiting convex strip 112 and the second limiting convex strip 113 are both vertically disposed, the width of the first limiting convex strip 112 is equal to the width of the second limiting convex strip 113, the left surface of the right convex portion 12 is provided with a right embedding groove 121, a right embedded groove 121 vertically extends to the upper end face and the lower end face of the right convex strip portion 12, a third limiting convex strip 122 and a fourth limiting convex strip 123 which are oppositely arranged are respectively arranged on the front groove wall and the rear groove wall of the right embedded groove 121, the third limiting convex strip 122 and the fourth limiting convex strip 123 are vertically arranged, the width of the third limiting convex strip 122 is equal to that of the fourth limiting convex strip 123, a left barrier strip 13 and a right barrier strip 14 which are arranged side by side left and right are also arranged on the front surface of the aluminum plate 1, the left barrier strip 13 and the right barrier strip 14 are vertically arranged, a plurality of through holes 15 are further formed in the front surface of the aluminum plate 1 between the left barrier strip 13 and the right barrier strip 14, and the through holes 15 penetrate through the rear surface of the aluminum plate 1; as shown in fig. 3, the wood board 2 is vertically arranged, a left insertion strip 21 and a right insertion strip 22 which are arranged side by side from left to right are arranged on the rear surface of the wood board 2, the left insertion strip 21 and the right insertion strip 22 are vertically arranged, an embedding hole 23 is formed in the rear surface of the wood board 2, a metal ring 24 is embedded in the embedding hole 23, the central line of the metal ring 24 is parallel to the central line of the embedding hole 23, an operation hole 25 is formed in the bottom of the embedding hole 23, the operation hole 25 is communicated with the inner hole of the metal ring 24 in a butt joint manner, the operation hole 25 penetrates through the front surface of the wood board 2, and a detachable shielding cap 26 is embedded in the opening of the operation hole 25 on the front surface of the wood board 2; as shown in fig. 4, the left elastic positioning assembly 3 includes a left spring 31 and a left positioning bar 32, the left positioning bar 32 is vertically disposed, the front and rear surfaces of the left positioning bar 32 are respectively provided with a first limiting groove 321 and a second limiting groove 322, the first limiting groove 321 and the second limiting groove 322 are both vertically extended, the first limiting groove 321 and the second limiting groove 322 are also extended to the upper and lower end surfaces of the left positioning bar 32, the width of the first limiting groove 321 is equal to that of the second limiting groove 322, the width of the first limiting groove 321 is greater than that of the first limiting convex strip 112, and the right side edge of the front surface of the left positioning bar 32 is provided with a left guiding inclined plane 323; as shown in fig. 1, the left positioning bar 32 is transversely movably embedded in the left embedding groove 111, the right wall of the left positioning bar 32 is arranged outside the notch of the left embedding groove 111, the first limiting groove 321 is covered on the first limiting convex strip 112, and the second limiting groove 322 is covered on the second limiting convex strip 113, the left spring 31 is arranged in the left embedding groove 111, and two ends of the left spring 31 respectively elastically act on the groove bottom of the left embedding groove 111 and the left surface of the left positioning bar 32; as shown in fig. 5, the right elastic positioning assembly 4 includes a right spring 41 and a right positioning bar 42, the right positioning bar 42 is vertically disposed, the front and rear surfaces of the right positioning bar 42 are respectively provided with a third limiting groove 421 and a fourth limiting groove 422, the third limiting groove 421 and the fourth limiting groove 422 vertically extend, the third limiting groove 421 and the fourth limiting groove 422 extend to the upper and lower end surfaces of the right positioning bar 42, the width of the third limiting groove 421 is equal to the width of the fourth limiting groove 422, the width of the third limiting groove 421 is greater than the width of the third limiting protrusion 122, and the left side of the front surface of the right positioning bar 42 is provided with a right guiding inclined surface 423; as shown in fig. 1, the right positioning bar 42 is transversely movably embedded in the right embedding groove 121, the left wall of the right positioning bar 42 is arranged outside the notch of the right embedding groove 121, the third limiting groove 421 is covered on the third limiting convex strip 122, and the fourth limiting groove 422 is covered on the fourth limiting convex strip 123, the right spring 41 is arranged in the right embedding groove 121, and two ends of the right spring 41 respectively elastically act on the groove bottom of the right embedding groove 121 and the right surface of the right positioning bar 42; as shown in fig. 1, the left insertion strip 21 is inserted between the left positioning strip 32 and the left barrier strip 13, the left positioning strip 32 is tightly pressed on the left surface of the left insertion strip 21, the left insertion strip 21 is also tightly pressed on the left wall of the left barrier strip 13, the right insertion strip 22 is inserted between the right positioning strip 42 and the right barrier strip 14, the right positioning strip 42 is tightly pressed on the right surface of the right insertion strip 22, and the right insertion strip 22 is also tightly pressed on the right wall of the right barrier strip 14. Through the setting of perforation 15, can be convenient for fix aluminum plate 1 on the wall through the screw, can avoid the use of glue like this, its ten minutes environmental protection to avoid it to cause the influence to people's health. Through the structural design, the left positioning strip 32 and the right positioning strip 42 can both move transversely, the left spring 31 can provide a right acting force for the left positioning strip 32, and the right spring 41 can provide a left acting force for the right positioning strip 42, so that the left insertion strip 21 and the right insertion strip 22 can be conveniently inserted, the left insertion strip 21 and the right insertion strip 22 can be well compressed, the convenience for installing the wood boards 2 can be improved, and the reliability for installing the wood boards 2 can be improved. Through the arrangement of the left barrier strip 13, the left insertion strip 21 can be resisted, so that the left insertion strip 21 can be prevented from being damaged by the jacking of the left positioning strip 32; similarly, the right insertion strip 22 can be resisted by the right barrier strip 14, so that the right insertion strip 22 can be prevented from being damaged by the right positioning strip 42; therefore, the reliability of the aluminum-wood composite wallboard can be effectively improved. By arranging the operation hole 25 and the embedding hole 23 on the wood board 2, people can hook the wood board 2 by using a hooking tool conveniently, so that the wood board 2 is guaranteed to be detached conveniently. Therefore, when the wood board 2 needs to be replaced, the aluminum plate 1 does not need to be replaced, and the accuracy and the reliability of the installation and the positioning of the wood board 2 are ensured; and the disassembly and the assembly of the wood board 2 are very simple, and the user can finish the disassembly and the assembly by himself, which not only is beneficial to improving the convenience of the maintenance of the wood board 2, but also is beneficial to reducing the cost of the maintenance of the wood board 2. The metal ring 24 is embedded in the embedding hole 23, so that a hooking tool can be prevented from being directly hooked on the wood board 2, and the wood board 2 is prevented from being damaged by hooking; therefore, when the wood board 2 is disassembled and maintained, the wood board 2 can be prevented from being damaged in the disassembling process. Through the setting that hides lid 26, can play the effect of shielding to handle hole 25, so both can avoid the dust to enter into between plank 2 and aluminum plate 1, can also avoid the aesthetic property of aluminum-wood composite wall panel to receive the influence. The arrangement of the left guide inclined plane 323 is beneficial to improving the convenience of the insertion of the left insertion strip 21; the right guide inclined surface 423 is arranged, so that convenience in insertion of the right insertion strip 22 is improved; this can further improve the convenience of installation of the wood board 2.

It should be noted that the drawings are only schematic structural diagrams of the design scheme of the application, and are used for expressing the design principle of the design scheme. In a specific manufacturing process, the length, width and height ratio of each component in the schematic diagram can be correspondingly modified; and the relative distances of the various components may also be varied somewhat without departing from the design principles of the present application.

As shown in fig. 6, when the aluminum-wood composite wallboard is installed, the screw 10 is locked on the wall 20 after passing through the through hole 15, so that the installation and fixation of the aluminum plate 1 can be realized; then the left insertion strip 21 and the right insertion strip 22 on the wood board 2 are respectively inserted into the corresponding positions of the aluminum plate 1, and the installation of the aluminum-wood composite wallboard can be completed. When replacing the wood board 2, the aluminum plate 1 does not need to be disassembled.

By having the perforations 15 between the left and right bars 13, 14, the space on the aluminum-wood composite wall panel can be quite reasonably utilized, and the design is quite ingenious.

As shown in fig. 2, the front surface of the left barrier strip 13 and the front surface of the right barrier strip 14 are both arc-shaped, so that a guiding function can be achieved, and the convenience of assembling the wood board 2 and the aluminum board 1 is improved.

The left convex strip portion 11, the right convex strip portion 12, the left barrier strip 13, the right barrier strip 14 and the aluminum plate 1 are of an integral structure and are made of aluminum profiles. In the actual manufacturing process, the height of the aluminum plate 1 can be made smaller than that of the wood plate 2, which can reduce the application of raw materials, thereby contributing to the reduction of the manufacturing cost of the aluminum-wood composite wallboard.

As shown in fig. 3, the left and right side edges of the rear surface of the left insertion strip 21 are chamfered; the left side and the right side of the rear surface of the right insertion strip 22 are chamfered; this can improve the convenience of installation of the wood board 2.

The left insertion strip 21, the right insertion strip 22 and the wood board 2 are of an integral structure.

The metal ring 24 can be embedded into the embedding hole 23 in an interference fit manner, and can also be fixed in the embedding hole 23 by bonding with glue.

When the wood plate 2 is disassembled, the rod hooking tool with the hook body at the front end can penetrate into the inner hole of the metal ring 24 through the operation hole 25, the hook body is hooked on the inner side of the metal ring 24, and then the rod hooking tool is pulled outwards, so that the wood plate 2 can be pulled away from the aluminum plate 1.

In the actual manufacturing process, a plurality of embedding holes 23 can be formed in the wood board 2, metal rings 24 are embedded in the embedding holes 23, operation holes 25 are formed in the bottoms of the embedding holes 23, and shielding caps 26 are embedded in the operation holes 25; this facilitates pulling the wooden board 2 from different positions.

In the actual manufacturing process, a plurality of left springs 31 may be arranged vertically side by side in the left insertion groove 111, and each left spring 31 is made to elastically act on the left positioning strip 32, which helps to further improve the reliability of the elastic action of the left positioning strip 32.

In the actual manufacturing process, a plurality of right springs 41 may be arranged vertically side by side in the right insertion groove 121, and each right spring 41 is elastically acted on the right positioning bar 42, which contributes to further improving the reliability of the elastic action of the right positioning bar 42.

Claims (1)

1. An aluminum-wood composite wallboard is characterized in that: the aluminum plate comprises an aluminum plate (1), a wood plate (2), a left elastic positioning component (3) and a right elastic positioning component (4), wherein the aluminum plate (1) is vertically arranged, the left side edge and the right side edge of the front surface of the aluminum plate (1) are respectively provided with a left convex strip portion (11) and a right convex strip portion (12), the left convex strip portion (11) and the right convex strip portion (12) are vertically arranged, the right surface of the left convex strip portion (11) is provided with a left embedding groove (111), the left embedding groove (111) vertically extends to the upper end surface and the lower end surface of the left convex strip portion (11), the front groove wall and the rear groove wall of the left embedding groove (111) are respectively provided with a first limiting convex strip (112) and a second limiting convex strip (113) which are oppositely arranged, the first limiting convex strip (112) and the second limiting convex strip (113) are vertically arranged, the width of the first limiting convex strip (112) is equal to the width of the second limiting convex, the left surface of the right convex strip part (12) is provided with a right embedding groove (121), and the right embedding groove (121) vertically extends to the upper end surface and the lower end surface of the right convex strip part (12), the front and rear groove walls of the right embedding groove (121) are respectively provided with a third limit convex strip (122) and a fourth limit convex strip (123) which are oppositely arranged, and the third limit convex strip (122) and the fourth limit convex strip (123) are vertically arranged, the width of the third limiting convex strip (122) is equal to that of the fourth limiting convex strip (123), the front surface of the aluminum plate (1) is also provided with a left barrier strip (13) and a right barrier strip (14) which are arranged side by side from left to right, and the left barrier strip (13) and the right barrier strip (14) are both arranged vertically, a plurality of through holes (15) are formed in the front surface of the aluminum plate (1) between the left baffle strip (13) and the right baffle strip (14), and the through holes (15) penetrate through the rear surface of the aluminum plate (1); the wood board (2) is vertically arranged, left inserting strips (21) and right inserting strips (22) which are arranged side by side from left to right are arranged on the rear surface of the wood board (2), the left inserting strips (21) and the right inserting strips (22) are vertically arranged, an embedded hole (23) is formed in the rear surface of the wood board (2), a metal ring (24) is embedded in the embedded hole (23), the central line of the metal ring (24) is parallel to the central line of the embedded hole (23), an operating hole (25) is formed in the hole bottom of the embedded hole (23), the operating hole (25) is communicated with the inner hole of the metal ring (24) in a butt joint mode, the operating hole (25) penetrates through the front surface of the wood board (2), and a detachable covering cap (26) is embedded in the orifice of the operating hole (25) located in the front surface of the wood board (2); the left elastic positioning component (3) comprises a left spring (31) and a left positioning strip (32), the left positioning strip (32) is vertically arranged, the front surface and the rear surface of the left positioning strip (32) are respectively provided with a first limiting groove (321) and a second limiting groove (322), the first limiting groove (321) and the second limiting groove (322) vertically extend, the first limiting groove (321) and the second limiting groove (322) extend to the upper end surface and the lower end surface of the left positioning strip (32), the width of the first limiting groove (321) is equal to that of the second limiting groove (322), the width of the first limiting groove (321) is larger than that of the first limiting convex strip (112), the right side edge of the front surface of the left positioning strip (32) is provided with a left guide inclined surface (323), the left positioning strip (32) can be transversely and movably embedded in the left embedded groove (111), and the right wall of the left positioning strip (32) is arranged at the outer side of the notch of the left embedded groove (111), the first limiting groove (321) is covered on the first limiting convex strip (112), the second limiting groove (322) is covered on the second limiting convex strip (113), the left spring (31) is arranged in the left embedded groove (111), and two ends of the left spring (31) respectively act on the groove bottom of the left embedded groove (111) and the left surface of the left positioning strip (32) in an elastic mode; the right elastic positioning component (4) comprises a right spring (41) and a right positioning strip (42), the right positioning strip (42) is vertically arranged, the front surface and the rear surface of the right positioning strip (42) are respectively provided with a third limiting groove (421) and a fourth limiting groove (422), the third limiting groove (421) and the fourth limiting groove (422) vertically extend, the third limiting groove (421) and the fourth limiting groove (422) extend to the upper end surface and the lower end surface of the right positioning strip (42), the width of the third limiting groove (421) is equal to that of the fourth limiting groove (422), the width of the third limiting groove (421) is larger than that of the third limiting convex strip (122), the left side edge of the front surface of the right positioning strip (42) is provided with a right guide inclined surface (423), the right positioning strip (42) can be transversely and movably embedded in the right embedded groove (121), and the left wall of the right positioning strip (42) is arranged at the outer side of the right notch embedded groove (121), a third limiting groove (421) is covered on the third limiting convex strip (122), a fourth limiting groove (422) is covered on the fourth limiting convex strip (123), the right spring (41) is arranged in the right embedded groove (121), and two ends of the right spring (41) respectively act on the groove bottom of the right embedded groove (121) and the right surface of the right positioning strip (42) in an elastic manner; the left inserting strip (21) is inserted between the left positioning strip (32) and the left retaining strip (13), the left positioning strip (32) is tightly pressed on the left surface of the left inserting strip (21), the left inserting strip (21) is also attached to the left wall of the left retaining strip (13), the right inserting strip (22) is inserted between the right positioning strip (42) and the right retaining strip (14), the right positioning strip (42) is tightly pressed on the right surface of the right inserting strip (22), and the right inserting strip (22) is also attached to the right wall of the right retaining strip (14).

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