CN214696548U - Background wall - Google Patents

Abstract

The utility model discloses a background wall, X including a plurality of shingles that have arbitrary length width, a plurality of linear type is to the Y of concatenation subassembly, a plurality of linear type to the concatenation subassembly, it is a plurality of the shingles step is for rectangular plate-like total wall body, and is two adjacent the relative limit of shingles has along the splice groove that relative limit length direction extends, X cooperates with the splice groove joint on the relative limit of two adjacent shingles respectively to concatenation subassembly/Y to concatenation subassembly. The beneficial effects of the utility model reside in that, combine together the structure of Mondrian grid with the wall, improved the ornamental value and the third dimension of wall.

Description

Background wall

Technical Field

The utility model relates to a background wall mainly uses the technical field at indoor device.

Background

The background wall is a home decoration art decorated on a television, a sofa, a vestibule, a bedroom wall and the like of a home living room, has various styles, not only needs the decoration requirement of a consumer, but also embodies the ornamental value, and can meet the market demand and improve the profit if having a certain artistic value.

Most of background walls have repetitive patterns or styles, and even if the patterns or styles are fine, the visual fatigue is easily caused. The Mondrian grid painting has certain influence on the building, furniture, decoration art and printing industry, has high artistic appreciation value, and the Mondrian grid painting is brushed on the wall surface of a background wall at present to improve the appreciation value of the background wall, but the Mondrian grid painting brushed on the background wall is more rigid and has poor stereoscopic impression.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a wall combines together the structure of Mondrian grid drawing and wall, has improved the ornamental value and the third dimension of wall.

The utility model discloses a realize through following technical scheme.

The utility model provides a background wall, includes a plurality of shingles that have arbitrary length width, a plurality of linear type X to splicing assembly, a plurality of linear type Y to splicing assembly, it is a plurality of the shingles are built up and are into rectangular plate-like total wall, and are two adjacent the relative limit of shingles has along the splice groove that extends relative limit length direction, X is to splice assembly Y to splicing assembly respectively with the splice groove joint cooperation on the relative limit of two adjacent shingles.

The utility model discloses regard as the grid unit of Mondrian check with the shingle nail, regard X to concatenation subassembly Y to the lines of concatenation subassembly as Mondrian check, combine together the structure of wall and Mondrian check ingeniously, both can improve the ornamental value of wall, still get Mondrian check in addition and have had the third dimension.

As a further improvement of the utility model, the positive colour of shingle nail is arbitrary monochromatic.

As the utility model discloses a further improvement, one or more are located same extension sharp X to splicing assembly Y constitute X to splicing assembly Y to splicing assembly to X intersects splicing assembly Y to splicing assembly Y's both ends and the edge of above-mentioned total wall body or is the T shape to splicing assembly X with Y to splicing assembly.

As the utility model discloses a further improvement, arbitrary two are crossing X is to concatenation assembly and Y to concatenation assembly, and the short X of length cuts off into two X to concatenation subassembly Y to concatenation assembly Y with the longer Y of length to concatenation assembly X to concatenation assembly in crossing department to concatenation assembly to two X respectively to the tip of concatenation subassembly Y to concatenation assembly with Y intersects to concatenation assembly X to concatenation assembly T shape.

As a further improvement of the utility model, X is including all being linear type installed part, caulking strip to concatenation subassembly Y to concatenation subassembly, the installed part has the body portion that is located two relative limits of shingle nail gap, two connections and respectively with the relative side of two shingle nails splice groove joint complex inlay portion, connect the first end at body portion and laminate the portion of pasting at two shingle nails backs, the second end of body portion is equipped with the inserting groove that extends along installed part length direction, the caulking strip has with inserting groove grafting complex grafting portion, connect the first end of grafting portion and seal the portion of sealing in the gap between the relative limit of two shingle nails.

The thickness of the wall portion of installed part is greater than the caulking strip, if installed part and caulking strip structure as an organic whole, X like splicing assembly and Y can appear the problem of wall portion mutual interference to the crossing department of splicing assembly T shape, consequently still need follow X to splicing assembly Y to the length direction cutting of splicing assembly part wall portion of falling, thereby increased the construction steps, and the utility model discloses with installed part and caulking strip components of a whole that can function independently setting, then can solve this problem, the components of a whole that can function independently setting can carry out secondary processing such as anodic oxidation or wire drawing with the caulking strip alone in addition, and need not to carry out the same processing to the installed part, has reduced the processing cost.

As a further improvement, the both sides of grafting portion grafting in the inserting groove part have a plurality ofly extend and the first protruding structure that sets up side by side along installed part length direction, two cell walls of inserting groove have the second protruding structure that extends along installed part length direction side by side of an adjacent notch or a plurality of adjacent notches, when relative displacement takes place along the grafting direction with the inserting groove grafting portion and inserting groove the protruding structure of second can be extruded by the first protruding structure of process in proper order, the second end of grafting portion with when the tank bottom of inserting groove offsets the protruding structure of second is crisscross with first protruding structure.

As a further improvement of the utility model, as the utility model discloses a further improvement, first protruding structure has the first domatic of the first end of near grafting portion, is close to the second of grafting portion second end domatic, connects first curved surface between them, the protruding structure of second has the third that is close to the inserting groove notch domatic, is close to the fourth domatic of inserting groove tank bottom, connects second curved surface between them, first domatic has roughly the same gradient with the fourth, the second is domatic has roughly the same gradient with the third.

As a further improvement, the tank bottom of inserting groove and two cell wall junctions all have the sunk structure that extends along installed part length direction, the first protruding structure that grafting portion both sides are closest to the second end cooperates with the sunk structure joint that corresponds.

The utility model has the advantages that:

the utility model discloses combine together the structure of Mondrian check and wall, both can improve the ornamental value of wall, still have Mondrian check to have more the third dimension moreover, in addition, X sets up the technical problem of pasting wall portion interference to splicing assembly Y through with installed part and caulking strip components of a whole that can function independently to splicing assembly, and the component of a whole that can function independently structure still can carry out secondary treatment alone with the caulking strip moreover, has practiced thrift the cost.

Drawings

The preferred embodiments of the present invention will hereinafter be described in detail to facilitate an understanding of the objects and advantages of the invention, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic sectional view of a wall panel splicing assembly shown disassembled;

FIG. 2 is a schematic cross-sectional view of a shingle splicing assembly being spliced to two adjacent shingles;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 is a front view of a wall;

fig. 5 is an installation sequence diagram of fig. 4.

Detailed Description

The invention is explained in more detail below with reference to the drawings and exemplary embodiments.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.

Example 1:

referring to fig. 1-3, a shingle splicing assembly includes a mounting member 1 and a caulking strip 2, the mounting member 1 and the caulking strip 2 are both in a linear structure, the mounting member 1 has a body portion 11, two snap-fit portions 12 and a wall-attaching portion 13, and the mounting member 1 is used to connect two adjacent spliced shingles 3.

The section of the body 11 is slender with a certain width and extends along the thickness direction of the wall panel 3, the body 11 is located in the gap between two adjacent wall panels 3, one end of the body 11 facing the back of the wall panel 3 is defined as a first end 1-a, one end facing the front of the wall panel 3 is defined as a second end 1-B, the first end of the body 11 is integrally connected with the middle of the wall pasting part 13, the wall pasting part 13 is in a flat structure and is divided into two parts by the body 11, which are respectively designated as a first side part 131 and a second side part 132, the first side part 131 and the second side part 132 are respectively pasted on the back of two adjacent spliced wall panels 3, the second side part 132 is provided with a groove 133 of a fastener, the fastener can fixedly connect the wall panel 3 with the wall body, the end of the first side part 131 bends towards the direction far away from the back of the wall panel 3, the included angle that makes this tip and shingle nail 3's the back have certain to be the acute angle, and the tip of should buckling can play certain space cushioning effect, can release the space that this included angle was stored when shingle nail 3 and wall body fixed connection to avoid pasting wall portion 13 and receive the extrusion wearing and tearing of transition.

The two embedded parts 12 are integrally connected to two sides of the body part 11, and the structure is symmetrical about the body part 11, specifically, the embedded parts 12 are connected to two sides of the body part 11 adjacent to the second end 1-B, the opposite sides 31 of the wall panels 3 are provided with splicing grooves 32 extending along the length direction of the opposite sides 31, the two embedded parts 12 are respectively matched with the splicing grooves 32 of two adjacent wall panels 3 in a clamping way, the splicing grooves 32 are provided with a first groove wall 321 close to the front surface of the wall panel 3, a second groove wall 322 close to the back surface of the wall panel 3 and a groove bottom 323, the embedded parts 12 are provided with an embedded part first end surface 121 facing the first groove wall 321, an embedded part second end surface 122 facing the second groove wall 322 and an embedded part third end surface 123 facing the groove bottom, wherein the embedded part first end surface 121 is flush with the second end 1-B of the body part 11, even if the body part 11 and the two embedded parts 12 form a T-shaped structure, the structural strength of the installation part 1 along the width direction of the gap is enhanced, a gap is formed between the third end face 123 of the clamping and embedding part and the groove bottom 323 of the splicing groove 32, therefore, the clamping and embedding part 12 has a certain assembling gap when being in clamping and matching with the splicing groove 32, so that the situation that the aging and the even fracture are aggravated by the extrusion of the groove bottom 323 when the installation part 1 is used for a long time and has the problems of aging and deformation and the like is avoided, and the second end face 122 of the clamping and embedding part is a bending face after being bent for multiple times.

The clamping part 12 is wrapped with a layer of flexible member matched with the shape of the clamping part, and preferably made of rubber. Based on the structure of the engaging portion 12, the flexible member 4 has a first flexible member portion 41, a second flexible member portion 42, and a third flexible member portion 43 that are integrally connected to each other, and the three portions respectively cover the first engaging portion end 121, the second engaging portion end 122, and the third engaging portion end 123 of the engaging portion 12, and since the first engaging portion end 121 is a flat surface, the first flexible member portion 41 is in frictional contact with the first groove wall 321 as a whole, and the second engaging portion end 122 is a bent surface, the second flexible member portion 42 is in frictional contact with the second groove wall 322, and the rest portions have a gap with the second groove wall 322. Generally, the first end surface 121 of the clamping portion and the first portion 41 of the flexible member play a role in mainly preventing the clamping portion 12 from relatively moving with the splicing groove 32 along the length direction thereof, and then the first end surface 121 of the clamping portion and the structural feature of the second end 1-B of the body portion 11 are flush with each other, so that the clamping portion has a good clamping matching performance, the second end surface 122 of the clamping portion and the second portion 42 of the flexible member play a role in partially preventing the clamping portion 12 from relatively moving with the splicing groove 32, and more play a role in supporting the clamping portion 12, so that the force of the first portion 41 of the flexible member attaching to the first groove wall 321 is improved, and in addition, since the second flexible member is only partially in frictional contact with the second groove wall 322, damping can be reduced when the clamping portion 12 is clamped into the clamping groove, and the assembly difficulty is simplified.

The second end of the main body 11 is provided with an insertion groove 113 extending along the length direction of the mounting piece 1, the insertion groove 113 extends from the notch to the groove bottom 1132 along the length direction of the section of the main body 11, the caulking strip 2 is provided with an insertion part 21 and a sealing part 22, the section of the insertion part 21 is in a slender structure, one end of the insertion part facing the back surface of the wall panel 3 is defined as a first end 2-A, one end of the insertion part facing the front surface of the wall panel 3 is defined as a second end 2-B, the sealing part 22 is in a flat structure, the middle part of the sealing part is integrally connected with the second end 2-B of the insertion part 21, the two caulking strips 2 in a T-shaped structure are formed, and the sealing part 22 is used for sealing the gap between the opposite edges 31 of the two wall panels 3.

The insertion part 21 includes two parts, one part is inserted and matched with the insertion groove 113 to be recorded as an insertion part second part 212, the other part is exposed outside the insertion groove 113 to be recorded as an insertion part first part 211, two sides of the insertion part second part 212 are provided with a plurality of first protruding structures S extending along the length direction of the mounting part 1 and arranged side by side, two groove walls 1131 of the insertion groove 113 are provided with one or a plurality of second protruding structures P extending along the length direction of the mounting part 1 and arranged next to the groove opening, and two second protruding structures P are arranged side by side along the position next to the groove opening on the groove wall of the insertion groove 113 in the present embodiment.

When the inserting part 21 and the inserting groove 113 are relatively displaced along the inserting direction, the second protrusion structures P may be pressed by the first protrusion structures S passing through in sequence, where the relative displacement is a process of inserting the inserting part 21 into the inserting groove 113 along the inserting direction. When inserting grafting portion 21, two first protruding structures S of the adjacent grafting portion 21 first end in grafting portion second portion 212 both sides contact with two second protruding structures P of adjacent notch at first, first protruding structure S extrudees second protruding structure P along the side direction, because notch position is far away from the tank bottom position and is compared other positions more easily and appear warping under the extrusion, thereby be located the interval grow between two second protruding structures P, the groove width of notch position is increased promptly, then improved the smooth degree that grafting portion second portion 212 inserted inserting grafting groove 113. It is worth noting that certain deformation can also occur to the first protruding structure S and the second protruding structure P in the extrusion process, and the thickness of the second part 212 of the insertion part is relatively narrow, so that the rigidity of the first protruding structure S integrated with the first protruding structure S is stronger, and the deformation degree of the first protruding structure S is smaller than that of the second protruding structure P, which is beneficial to the insertion of the insertion part 21, so that the caulking strip 2 can be made of a material with stronger rigidity than that of the installation part 1, so as to increase the deformation difference between the first protruding structure S and the second protruding structure P, and further improve the smoothness of insertion.

With the depth of the second part 212 inserted into the insertion groove 113 increasing, the first protrusion structures S on both sides of the second part 212 sequentially pass through the second protrusion structures P and exert a squeezing action on the second protrusion structures P, so that the groove width of the insertion groove 113 is intermittently increased and restored. Of course, when the second end of the insertion portion 21 abuts against the bottom of the insertion groove 113, that is, when the insertion portion 21 is completely inserted into the insertion groove 113, the second protrusion structure P and the first protrusion structure S are staggered and not extruded, and the insertion groove 113 is in a normal state and maintains a tight insertion fit with the second portion 212 of the insertion portion.

Further, the groove width of the insertion groove 113 is gradually reduced along the direction from the groove opening to the groove bottom, i.e. the insertion part second part 212 is more and more tightly matched with the insertion of the insertion groove 113 along with the insertion process, so as to improve the connection strength between the installation part 1 and the caulking strip 2, if there is no first protruding structure S and second protruding structure P, the damping during insertion is very large, not only the operation difficulty of the insertion fit is improved, even the second end of the insertion part 21 can not be abutted to the groove bottom of the insertion groove 113, but also the phenomenon that the insertion part 21 is broken off can be easily caused in the insertion process. Therefore, on the premise of providing the first protrusion structure S and the second protrusion structure P, the solution of gradually reducing the groove width of the insertion groove 113 can be implemented.

The first protrusion structure S has three continuous surfaces, i.e., a first slope surface S1 near the first end of the insertion portion 21, a second slope surface S2 near the second end of the insertion portion 21, and a first curved surface S3 connecting the two, wherein the first slope surface S1 and the second slope surface S2 may have a certain curvature. Correspondingly, the second protrusion structure P has three continuous surfaces, namely a third slope surface P1 close to the bottom of the insertion groove 113, a fourth slope surface P2 close to the notch of the insertion groove 113, and a second curved surface P3 connecting the third slope surface P1 and the fourth slope surface P2, wherein the third slope surface P1 and the fourth slope surface P2 may also have a certain curvature. In fact, the first and second convex structures S, P are structurally both centrosymmetric, so the first and fourth slope surfaces S1, P2 have substantially the same inclination, and the second and third slope surfaces S2, P1 have substantially the same inclination.

In addition, the inclination of the first slope surface S1 is smaller than that of the second slope surface S2, when the second portion 212 of the inserting part is inserted into the inserting groove 113, the first slope surface S1 and the fourth slope surface P2 are relatively displaced until the first curved surface S3 and the second curved surface P3 are pressed, and the inclination of the first slope surface S1 and the fourth slope surface P2 is smaller, so that the resistance during insertion is smaller. On the contrary, when the second portion 212 of the insertion part is separated from the insertion groove 113, the second slope surface S2 and the third slope surface P1 are relatively displaced, and the inclination of the second slope surface S2 and the third slope surface P1 is relatively large, so that the caulking strip 2 is not easily separated from the mounting piece 1 in the non-manual operation of the insertion part 21.

The intersection of the groove bottom 1132 of the insertion groove 113 and the two groove walls 1131 is provided with a recessed structure Q extending along the length direction of the mounting part 1, the cross section of the recessed structure Q is a circular arc line and has a certain accommodating space, and therefore, the two sides of the insertion part 21 are in clamping fit with the first protruding structures S closest to the first end and the corresponding recessed structures Q. Combining first protruding structure S, second protruding structure P, body portion 11 takes place elastic deformation when grafting portion second portion 212 inserts, and the increase of groove width intermittent type nature, finally the cooperation of pegging graft completely resets after both are connected inseparabler, difficult not hard up drops, recessed structure Q then can alleviate the stress that grafting portion second portion 212 produced when inserting to the mechanical destruction that prevents grafting portion second portion 212 appearance or the inelasticity irreversible deformation that causes easily. A gap is formed between the part of the concave structure Q corresponding to the groove bottom and the first end 2-A of the inserting part 21, and particularly, the first end of the inserting part 21 is of a plane structure, so that the concave structure Q and the second end can be absorbed due to processing errors, deformation caused by expansion with heat and contraction with cold, deformation stress during inserting and the like, and the wall panel 3 is prevented from arching and deforming.

The main body 11 is divided into two parts, the part with the insertion groove 113 is marked as a first main body part 111, the part extending from the first main body part 111 to the first end 1-A of the main body 11 is marked as a second main body part 112, the width of the first main body part 111 is greater than that of the second main body part 112, therefore, when the second insertion part 212 is inserted into the insertion groove 113, the first main body part 111 and the insertion groove 113 are intermittently deformed, and the deformation of the second main body part 112 is very small, therefore, the wall pasting part 13 connected with the second main body part will not be displaced relative to the back surfaces of the two wall panels 3, and the local stability of the structure is improved. In addition, the flexible piece also has a flexible piece fourth part 44 which extends to the gap between the opposite edges 31 of the two wall panels 3, the flexible piece fourth part 44 covers the body part first part 111 and is attached to the corresponding opposite edge 31 of the wall panel 3, and the protection effect on the body part 11 can be achieved, so that the mounting piece 1 has elastic buffering performance between the gaps of the two adjacent wall panels 3.

Example 2:

referring to fig. 4, the background wall comprises a plurality of wall panels a, a plurality of linear X-direction splicing assemblies M and a plurality of linear Y-direction splicing assemblies N, wherein the wall panels a have lengths and widths of any sizes, and the front surface of the wall panels a is in any single color. A plurality of shingle nail A bond to be rectangular plate-like total wall, and two are adjacent shingle nail A has along the splice groove that extends relative limit length direction relative to the limit, X is to splice component M Y to splice component n respectively with the splice groove joint cooperation on the relative limit of two adjacent shingle nail A.

The X-direction splicing assembly M/Y-direction splicing assembly N is composed of one or more X-direction splicing assemblies M/Y-direction splicing assemblies N, and two end parts of the X-direction splicing assemblies M/Y-direction splicing assemblies N are intersected with the edge of the main wall body or are intersected with the Y-direction splicing assemblies/X-direction splicing assemblies M in a T shape. For the partition of the X-direction splicing assembly M/Y-direction splicing assembly N, the shorter one is partitioned by the longer one when the X-direction splicing assembly M/Y-direction splicing assembly N is intersected, namely, any two X-direction splicing assemblies M and Y-direction splicing assemblies N are intersected, the X-direction splicing assembly M/Y-direction splicing assembly N with the shorter length and the Y-direction splicing assembly N/X-direction splicing assembly M with the longer length are partitioned into two X-direction splicing assemblies M/Y-direction splicing assemblies N at the intersection, and the partitioned end parts of the two X-direction splicing assemblies M/Y-direction splicing assemblies N are respectively intersected with the Y-direction splicing assembly N/X-direction splicing assembly MT in an MT shape.

Under the partition scheme of the X-direction splicing general piece M/Y-direction splicing general piece N, the integrity of the longer X-direction splicing general piece M/Y-direction splicing general piece N can be kept as much as possible.

In the present embodiment, the X-direction splicing assemblies M/Y-direction splicing assemblies n are all the wall panel a splicing assemblies of embodiment 1.

Example 3:

a method for installing a background wall of embodiment 2 comprises the following steps:

(S1) determining the partition position according to the length of each X-direction splicing assembly M, Y to the splicing assembly N of the background wall, and cutting the linear type mounting pieces and the caulking strips into X-direction splicing assemblies M/Y-direction splicing assemblies N;

(2) taking an X-direction splicing assembly M/Y-direction splicing assembly N formed by a single X-direction splicing assembly M/Y-direction splicing assembly N as a reference, and clamping and splicing the wall panel A and the Y-direction splicing assembly/X-direction splicing assembly M which are positioned at two sides by one end of the X-direction splicing assembly M/Y-direction splicing assembly N along the length direction of the X-direction splicing assembly M/Y-direction splicing assembly N;

(3) and (4) clamping and splicing the rest wall panels A, X to the splicing assembly M/Y to the splicing assembly n in a diffusion mode, and finally splicing and assembling into the background wall.

Example 4:

referring to fig. 5, the installation order is according to reference numeral 1-reference numeral 23.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments can be modified, or some technical features can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides a background wall, its characterized in that, includes a plurality of shingles that have arbitrary length width, the X of a plurality of linear types to concatenation subassembly, the Y of a plurality of linear types to concatenation subassembly, it is a plurality of the shingles is built up and is closed to rectangular plate's total wall body, and is two adjacent the relative limit of shingles has along the splice groove that extends relative limit length direction, X cooperates with the splice groove joint on the relative limit of two adjacent shingles respectively to concatenation subassembly/Y.

2. The background wall according to claim 1, wherein one or more of the X-direction splicing assembly/the Y-direction splicing assembly located on the same extension line constitute an X-direction splicing assembly/a Y-direction splicing assembly, and both ends of the X-direction splicing assembly/the Y-direction splicing assembly intersect with an edge of the above-mentioned total wall body or intersect with the Y-direction splicing assembly/the X-direction splicing assembly in a T shape.

3. The background wall of claim 2, wherein any two of the X-direction splicing assemblies and the Y-direction splicing assemblies that intersect each other, the X-direction splicing assembly/the Y-direction splicing assembly that is shorter in length and the Y-direction splicing assembly/the X-direction splicing assembly that is longer in length are separated into two X-direction splicing assemblies/Y-direction splicing assemblies at the intersection, and the ends of the two X-direction splicing assemblies/the Y-direction splicing assemblies intersect the Y-direction splicing assembly/the X-direction splicing assembly in a T-shape.

4. The wall of claim 1, wherein the X-direction/Y-direction splicing assembly comprises a mounting member and a caulking strip, the mounting member comprises a body portion located in a gap between the opposite edges of the two wall panels, two clamping and embedding portions connected to two sides of the body portion and respectively clamped and matched with the splicing grooves of the opposite edges of the two wall panels, and a wall attaching portion connected to a first end of the body portion and attached to the back surfaces of the two wall panels, the second end of the body portion is provided with a plugging groove extending along the length direction of the mounting member, and the caulking strip comprises a plugging portion connected to the plugging groove and matched with the plugging portion, and a sealing portion connected to the first end of the plugging portion and sealing the gap between the opposite edges of the two wall panels.

5. A background wall according to claim 4, wherein the part of the insertion part which is inserted into the insertion groove has on both sides a plurality of first protruding structures which extend in the longitudinal direction of the mounting part and are arranged side by side, and the two groove walls of the insertion groove have one or more second protruding structures which extend in the longitudinal direction of the mounting part and are arranged next to each other and next to each other, and the second protruding structures can be pressed by the first protruding structures which pass through the second protruding structures when the insertion part and the insertion groove are displaced relative to each other in the insertion direction, and the second protruding structures are staggered when the second end of the insertion part abuts against the groove bottom of the insertion groove.

6. The wall of claim 5, wherein the first protrusion has a first slope surface adjacent to the first end of the insertion portion, a second slope surface adjacent to the second end of the insertion portion, and a first curved surface connecting the first and second slope surfaces, the second protrusion has a third slope surface adjacent to the notch of the insertion groove, a fourth slope surface adjacent to the bottom of the insertion groove, and a second curved surface connecting the first and second slope surfaces, the first and fourth slope surfaces have substantially the same inclination, and the second and third slope surfaces have substantially the same inclination.

7. The wall of claim 5, wherein the bottom of the insertion groove and the intersection of the two groove walls have a concave structure extending along the length of the mounting member, and the first convex structures on the two sides of the insertion portion closest to the second end are engaged with the corresponding concave structures.

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