A right-angle closing component for a concave-convex background wall

By designing right-angle closing components for concave and convex background walls, the problems of cumbersome installation of traditional background walls and the easy damage to the TV installation holes are solved, and the effect of stable installation and adaptation to different TV thicknesses is achieved.

CN114658180BActive Publication Date: 2025-07-11ZHEJIANG YASHA DECORATION
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Patent Information

Application Number
CN202210323337.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-30
Publication Date
2025-07-11
Estimated Expiration
2042-03-30

AI Technical Summary

Technical Problem

The installation of traditional background walls is cumbersome and time-consuming, the integrated structure is inconvenient to disassemble and replace, and the function is single. The TV installation hole is easy to be damaged and has no load-bearing structure, which poses a risk of falling off.

Method used

The right-angle closing assembly designed for concave and convex background walls, including mounting strips and closing frames, enables stable installation of the wall panels through fixings and adjustments, and adapts to different distances through insertion slots and insertion strips, combining the bearing plate and stop bumps to improve stability and flushness.

Benefits of technology

It realizes stable installation of wall panels, closes splicing gaps, and adapts to different TV thicknesses, avoids material waste and cutting accuracy issues, and improves installation convenience and safety.

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Abstract

The present invention relates to the technical field of assembled background walls, and in particular to a right-angle closing assembly for concave-convex background walls. The concave-convex background wall includes a plurality of wall panels, and the right-angle closing assembly includes four mounting strips and a closing frame. The four mounting strips are fixedly connected to the wall, and the four mounting strips are spliced ​​to form a rectangular frame. The closing frame is arranged in the rectangular frame, and the wall panel is arranged outside the rectangular frame; the closing frame is formed by connecting four side panels end to end, and one end of the mounting strip abuts against the end face of the wall panel, and the other end abuts against the side panel of the closing frame. In the present application, the mounting strip is designed to receive the wall panel, thereby ensuring the installation stability of the wall panel on the wall; at the same time, the closing frame is designed to close the splicing gap of the mounting strip, thereby achieving the effect of closing the gap and preventing dust from entering the splicing gap.
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Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated background walls, and particularly to a right-angle closing component for a concave-convex background wall. Background Art

[0002] Background walls have good decorative properties for walls and can also play a role in protecting the walls, and are deeply loved by people. Traditional background walls are a kind of home decoration art for decorating the TV, sofa, entrance, bedroom, etc. in the living room of a family. With its novel concept and advanced technology, it not only meets the needs of consumers for decoration, but also reflects the unique artistic aesthetic style of the owner, making it a perfect combination of commerce and art.

[0003] For traditional background walls, some are treated with overhead using wooden strips and base plates. First, the wooden strips need to be fireproof and anticorrosive treated, then the base is leveled with wooden strips, and then the base plate is sealed, resulting in an overhead layer on the wall. This installation method is cumbersome, time-consuming and laborious, and tests the manual ability of on-site workers, which is not conducive to prefabricated decoration; there are also many background walls with an integral structure, which are very inconvenient for transportation and disassembly. The integral background walls are not convenient for replacement. Moreover, the existing background walls are mostly for decorative purposes, with relatively single functions and cannot meet people's needs; when large boards need to be hung on the background wall, the base is often built into an overhead base in the form of a welded steel frame. This method has high labor and material costs, and requires special workers for construction, and is difficult to customize, making it difficult to meet the needs of the owner.

[0004] Televisions are usually installed on background walls. The patent document with the publication number of CN113266119A discloses such an assembled large-board TV background wall, including a back structure, a large-board ceramic and a frame assembly; the back structure and the large-board ceramic are both arranged in the frame and are arranged from back to front; a first installation groove for accommodating the TV can be opened on the large-board ceramic.

[0005] In this application, the installation holes for installing the TV are obtained by opening holes in the large board. Opening holes in the large board is likely to cause cracking and damage to the large board, and there are also problems such as inaccurate hole opening and rough cutting, which are likely to cause harm to people and the TV. At the same time, after opening the holes, the large board above the installation hole is suspended on the wall, and there is no structure to support it below, making it prone to falling off. Summary of the Invention

[0006] The present invention aims to solve the above problems and provides a right-angle closing component for a concave-convex background wall.

[0007] The technical solution for the present invention to solve the problem is to provide a right-angle closing component for a concave-convex background wall. The concave-convex background wall includes several wall panels. The right-angle closing component includes four mounting strips and a closing frame. All four mounting strips are fixedly connected to the wall, and the four mounting strips are spliced to form a rectangular frame. The closing frame is arranged inside the rectangular frame, and the wall panels are arranged outside the rectangular frame. The closing frame is formed by connecting the four side plates end to end. One end of the mounting strip abuts against the end face of the wall panel, and the other end abuts against the side plate of the closing frame.

[0008] As a preference of the present invention, the mounting strip includes a fixing part and an adjusting part. The fixing part is fixedly connected to the wall and is provided with an insertion groove. The adjusting part includes an insertion strip for inserting into the insertion groove in a direction non-parallel to the wall, and a receiving plate connected to the insertion strip. The receiving plate is parallel to the wall. One end of the receiving plate abuts against the end face of the wall panel, and the other end abuts against the side plate of the closing frame.

[0009] As a preference of the present invention, the insertion strip inserts into the insertion groove in a direction perpendicular to the wall.

[0010] As a preference of the present invention, the inner wall of the insertion groove or / and the outer wall of the insertion strip are provided with friction lines.

[0011] As a preference of the present invention, the fixing part includes a bottom plate connected to the wall, a first side plate non-parallelly connected to the bottom plate, and a second side plate non-parallelly connected to the bottom plate. The insertion groove is formed among the bottom plate, the first side plate, and the second side plate. The outer side face of the first side plate away from the insertion groove is flush with the end face of the receiving plate.

[0012] As a preference of the present invention, the end of the receiving plate abutting against the wall panel is provided with a stop bump, and the stop bump abuts against the side of the wall panel close to the wall.

[0013] As a preference of the present invention, it further includes fixing screws for connecting the first side plate, the insertion strip, and the second side plate.

[0014] As a preference of the present invention, the first side plate, the second side plate, and the insertion strip are all hollow inside.

[0015] As a preference of the present invention, the bottom plate includes a glue connection part glued to the wall and a nail connection part connected to the wall through connection screws.

[0016] As a preference of the present invention, the nail connection part is hollow inside and is provided with a reinforcement plate. The reinforcement plate includes a reinforcement part for the connection screw to pass through.

[0017] The beneficial effects of the present invention:

[0018] 1. In this application, an installation strip is designed to support the wall panel, ensuring the installation stability of the wall panel on the wall. At the same time, a closing frame is designed to close the splicing gap of the installation strip, achieving the effects of closing and preventing dust from entering the splicing gap.

[0019] 2. In this application, the installation strip includes a fixing member and an adjusting member. By adjusting the depth of insertion of the adjusting insertion strip into the fixing insertion groove, the distance between the receiving plate and the wall can be adjusted to adapt to wall panels with different installation distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an installation schematic diagram of a right-angle closing component for a concave-convex background wall;

[0021] Figure 2 is an exploded view of the structure of a right-angle closing component for a concave-convex background wall;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] In the figure: installation strip 1, insertion groove 111, bottom plate 112, first side plate 113, second side plate 114, reinforcement plate 115, insertion strip 121, receiving plate 122, stop protrusion 123, closing frame 2, wall panel 3. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following are the specific embodiments of the present invention, and in conjunction with the drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0025] A right-angle closing component for a concave-convex background wall, as Figure 1 and Figure 2 shown, such a concave-convex background wall includes a wall panel 3 and a connection structure for installing the wall panel 3 to the original wall.

[0026] The wall panel 3 is divided into a main wall panel and a secondary wall panel. The main wall panel and the secondary wall panel are parallel to each other. The main wall panel serves as the main TV background panel and is provided with TV mounting holes. To avoid problems such as material waste and poor cutting accuracy caused by traditional hole-cutting processes, the main wall panel is assembled by a number of sub-panels. Specifically, the main wall panel includes a number of upper sub-panels, a number of lower sub-panels, and two edge-sealing plates. A TV mounting hole is formed between the upper sub-panels, the lower sub-panels, and the two edge-sealing plates. The secondary wall panel serves as a decorative panel and does not need to be perforated. It can be directly made of a whole large panel or assembled by a number of sub-panels. In actual decoration, generally, the TV is installed in the center. Therefore, the concave-convex background wall includes a main wall panel and two secondary wall panels respectively arranged on both sides of the main wall panel. Considering the thickness of the TV and the occupied area of the background wall panel, the main wall panel is farther away from the wall than the secondary wall panel, so that the main wall panel and the secondary wall panel jointly form a concave-convex structure. Generally, the secondary wall panel is installed against the wall, and the main wall panel is installed on the wall through a support assembly. At the same time, since the main wall panel and the secondary wall panel are not in the same plane, there is a gap between the main wall panel and the secondary wall panel. Therefore, a side-sealing plate is usually designed between the main wall panel and the secondary wall panel to close the gap.

[0027] In this application, since a TV mounting opening is formed between the upper sub-panels, the lower sub-panels, and the two edge-sealing plates of the main wall panel, in order to support the upper sub-panels and close the joints of the upper sub-panels, the lower sub-panels, and the two edge-sealing plates, a corresponding right-angle closing component is designed in this application.

[0028] As Figure 2 shown, the right-angle closing component includes four mounting strips 1 and a closing frame 2. The four mounting strips 1 are all fixedly connected to the wall, and the four mounting strips 1 are assembled to form a rectangular frame. The closing frame 2 is formed by connecting the four side plates end to end. The closing frame 2 is directly inserted into the rectangular frame, so that the side plates of the closing frame 2 are in contact with the inner side surfaces (the surfaces close to the inside of the rectangular frame) of the mounting strips 1. The main wall panel is distributed outside the rectangular frame, and its end faces are in contact with the outer side surfaces (the surfaces far from the inside of the rectangular frame) of the mounting strips 1. That is, the upper sub-panels in the main wall panel are located above the rectangular frame, and their lower end faces are in contact with the upper mounting strips 1; the lower sub-panels in the main wall panel are located below the rectangular frame, and their upper end faces are in contact with the outer side surfaces of the lower mounting strips 1; the two edge-sealing plates in the main wall panel are respectively located on both sides of the rectangular frame, and their side end faces are in contact with the outer side surfaces of the mounting strips 1.

[0029] During installation, in order to ensure the integrity of the background wall, the front surface of the main wall panel (hereinafter, the surface of each component far from the wall is collectively referred to as the front surface, and correspondingly, the surface close to the wall is collectively referred to as the back surface) is preferably flush with the front surface of the mounting strip 1. Of course, an extension plate can also be added to the end of the main wall panel. The extension plate is thinner than the main wall panel. The front surface of the extension plate is flush with the front surface of the main wall panel, and the back surface is in contact with the front surface of the mounting strip to cover the mounting strip 1.

[0030] Considering that in a concave-convex background wall, in order to adapt to TVs of different thicknesses, the distance between the main wall panel and the wall needs to be adjustable, and an adjustable support component is used to connect the main wall panel and the wall. In order to adapt to main wall panels at different distances, in this embodiment, the width of the installation strip 1 (hereinafter, the direction perpendicular to the wall is denoted as the width direction) is also designed to be adjustable accordingly. As Figure 3 shown, the installation strip 1 includes a fixing member and an adjusting member.

[0031] Among them, the fixing member includes a bottom plate 112 connected to the wall, a first side plate 113 non-parallelly connected to the bottom plate 112, and a second side plate 114 non-parallelly connected to the bottom plate 112. At this time, an insertion slot 111 can be formed among the bottom plate 112, the first side plate 113, and the second side plate 114. The bottom plate 112, the first side plate 113, and the second side plate 114 are integrally formed. The bottom plate 112, the first side plate 113, and the second side plate 114 are preferably structures with hollow interiors and provided with support plates, so as to reduce material costs while ensuring strength. The bottom plate 112 can be connected to the wall in any way. In this application, the bottom plate 112 includes an adhesive connection part and a nail connection part. The adhesive connection part and the above-mentioned first side plate 113 and second side plate 114 form the above-mentioned insertion slot 111. A glue groove is provided on the side of the adhesive connection part close to the wall for filling an adhesive to bond the bottom plate 112 to the wall, while the nail connection part is connected to the wall through a connection screw. In order to improve the connection strength of the connection screw, preferably, a reinforcement plate 115 is provided in the hollow nail connection part. The reinforcement plate 115 only needs to be non-perpendicular to the wall. When the connection screw is fixed, the connection screw sequentially passes through the front plate of the nail connection part away from the wall, the reinforcement plate 115, and the back plate of the nail connection part close to the wall and then inserts into the wall. Among them, the connection part between the reinforcement plate 115 and the connection screw is the reinforcement part for the connection screw to pass through.

[0032] Matched with the insertion slot 111, the adjusting member includes an insertion strip 121. As long as the insertion strip 121 can be inserted into the insertion slot 111 in a direction non-parallel to the wall, the distance between the main wall panel and the wall can be adjusted. In order to increase the contact area between the insertion strip 121 and the insertion slot 111 to improve the connection strength between the two, preferably, the insertion strip 121 is selected as a straight plate. Correspondingly, the first side plate 113 and the second side plate 114 of the fixing member are arranged in parallel. At the same time, considering the convenience of adjustment, in this application, the insertion strip 121 is inserted into the insertion slot 111 in a direction perpendicular to the wall. Therefore, both the first side plate 113 and the second side plate 114 of the fixing member are perpendicularly connected to the bottom plate 112.

[0033] At this time, by adjusting the depth of the insertion bar 121 inserted into the insertion slot 111, the overall width of the installation bar 1 can be adjusted. Of course, only connecting the fixing member and the adjusting member by plugging has the problem of low connection strength. Therefore, a fixing screw is also included. After adjusting the depth of the adjusting member inserted into the fixing member, the fixing screw is sequentially passed through the first side plate 113, the first insertion bar 121, and the second side plate 114. At the same time, in order to prevent the adjusting member with the adjusted insertion depth from moving under external force, friction lines are provided on the inner wall of the insertion slot 111 or / and the outer wall of the insertion bar 121. The friction lines can be concave-convex lines, which can increase the friction force between the inner wall of the insertion slot 111 and the insertion bar 121.

[0034] When installing the main wall panel and the closing frame 2, the main wall panel and the side panel can respectively abut against the inner and outer sides of the part of the insertion bar 121 outside the insertion slot 111. However, if the depth of the insertion bar 121 inserted into the insertion slot 111 is too deep and the width of the part outside the insertion slot 111 is small, after the main wall panel abuts against it, the front surface of the main wall panel may protrude from the front surface of the insertion bar 121, and it is impossible to ensure the flatness of the main wall panel and the installation bar 1. Therefore, the adjusting member further includes a receiving plate 122 connected to the insertion bar 121; the receiving plate 122 is parallel to the wall, the outer side surface of the receiving plate 122 abuts against the end surface of the main wall panel, and the inner side surface abuts against the side panel of the closing frame 2.

[0035] In this embodiment, the first side plate 113 of the fixing member is close to the inside of the rectangular frame, and the second side plate 114 is far from the inside of the rectangular frame. Considering that the width of the side plate of the closing frame 2 is usually large, the outer side surface of the first side plate 113 is set to be flush with the outer side surface of the receiving plate 122, so that the side plate abuts against both the receiving plate 122 and the first side plate 113, improving the fixing strength of the installation bar 1 to the closing frame 2.

[0036] In addition, in order to further strengthen the abutting strength between the adjusting member and the main wall panel, a stop protrusion 123 is provided on the outer side surface of the receiving plate 122, and the stop protrusion 123 abuts against the back surface of the wall panel. Taking the upper sub-panel in the main wall panel as an example, if there is no stop protrusion 123, the left and right ends of the upper sub-panel are connected to the wall through the support assembly, and the lower end abuts against the receiving plate 122. At this time, if the lower end of the lower sub-panel is subjected to a force towards the wall, the lower end part of the lower sub-panel is likely to rotate towards the wall, affecting the flatness of the background wall, while the stop protrusion 123 effectively stops this movement trend of the lower sub-panel.

[0037] In addition, in the above-mentioned concave-convex background wall, the wall-attaching component for attaching the secondary wallboard to the wall includes a trimming and installing component. The trimming and installing component includes a connecting plate connected to the wall, and the connecting plate is fixedly connected to the wall by screws. Therefore, a screw groove for accommodating the screw head can also be provided on the connecting plate. At the same time, the trimming and installing component also includes a secondary insertion plate connected to the connecting plate through an extension plate. Based on this structure, a secondary groove for inserting the secondary insertion plate can be provided at the end of the secondary wallboard, and thus the secondary wallboard can be installed on the wall through the trimming and installing component. Considering that the setting of the connecting plate will cause a gap between the secondary wallboard and the wall, and the middle part of the secondary wallboard cannot be supported and is thus prone to collapse under external force, a semi-groove for accommodating the connecting plate is provided on the side of the secondary wallboard close to the wall. When the secondary wallboard is inserted into the trimming and installing component, the connecting plate of the trimming and installing component is exactly inserted into the semi-groove, so that the back surface of the secondary wallboard is flush with the back surface of the connecting plate, and the secondary wallboard can be attached to the wall to obtain the support of the wall. Generally, the bottom end of the secondary wallboard directly abuts against the ground. Therefore, only secondary grooves need to be opened at the left and right ends of the secondary wallboard and the secondary wallboard can be installed on the wall through the trimming and installing component respectively. If the secondary wallboard needs to be hung and installed, corresponding secondary grooves can also be opened at the bottom end of the secondary wallboard at this time and the secondary wallboard can be installed on the wall through the trimming and installing component. In addition, since the wall is usually not completely flat, the connecting plate can be connected to the wall through a leveling component. The leveling component includes a plurality of keels and adjusting screws for connecting the keels and the wall. The keel is preferably a keel with a smaller thickness; the adjusting screw is the same as an ordinary screw and includes a head and a screw rod part for being driven into the wall. However, in this application, the head of the adjusting screw is provided with an external thread. Correspondingly, at least two thread adjusting holes for connecting with the adjusting screw are provided along the length direction of the keel. For example, thread adjusting holes are respectively provided at both ends of the keel; the thread adjusting hole includes a through hole part for the screw rod part to pass through and an internal thread part for threadedly connecting with the head. During use, after connecting the keel and the adjusting screw through the internal thread part and the head, the part of the screw rod part of the adjusting screw protruding from the back surface of the keel is driven into the wall, and the leveling can be achieved by adjusting the depth of the adjusting screws at both ends of the keel driven into the wall. Then the connecting plate can be connected to the keel through ordinary screws. At this time, based on the structure of the semi-groove of the secondary wallboard, the back surface of the secondary wallboard abuts against the keel to provide support through the keel.

[0038] After the secondary wall panel is installed against the wall, the main wall panel is installed through the support assembly. According to the different thicknesses of the TV, the distance between the main wall panel and the wall usually needs to be adjusted correspondingly. The support assembly includes a first fixing member connected to the wall and a first adjusting member connected to the main wall panel. The structures of the first fixing member and the first insertion strip are basically the same as those of the above-mentioned right-angle closing structure. The first fixing member is provided with a first insertion groove, and the first adjusting member includes a first insertion strip. The first adjusting member further includes a main insertion plate connected to the first insertion strip and parallel to the wall. At this time, the first adjusting member is in a T shape, and the end of the main wall panel is provided with a main groove for the main insertion plate to insert. In use, main grooves are respectively provided at both ends of the upper sub-board and the lower sub-board, and the main grooves at both ends of the sub-board are respectively inserted into the main insertion plates of the two first adjusting members. The edge closing plate only needs to be provided with a main groove at one end and inserted into the main insertion plate, and the other end can be fixed by any other means. For example, a side plate is vertically connected to the free end of the edge closing plate. During installation, the main groove at its end is inserted into the main insertion plate. At this time, a stop block is added to the wall so that the side plate of the edge closing plate abuts against the left side surface of the stop block. This stop block can refer to the structure of the support assembly and also includes a fixing member and an insertion strip. The difference is that a stop plate is connected to the insertion strip, and the side plate of the edge closing plate abuts against the side end surface of the stop plate. At the same time, the stop plate can also be used as the installation base of the lamp. In addition, a side sealing plate can be used. One end of the side sealing plate abuts against the edge closing plate, and the other end abuts against the secondary board 2. The side sealing plate not only provides support for the edge closing plate, but also plays a role in covering the support assembly between the sub-board and the wall. In this embodiment, the stop block and the side sealing plate are used in combination, and the side sealing plate abuts against the stop plate. Since in this application, in order to ensure the support strength, the first insertion strip is designed to be relatively thick. If the main insertion plate is directly connected to the first insertion strip, there will be a large gap between the two sub-boards and between the sub-board and the edge closing plate. Therefore, in this embodiment, the first adjusting member further includes a slotted plate with a smaller width. The slotted plate is parallel to the first insertion strip, one end of which is connected to the first insertion strip, and the other end is perpendicularly connected to the main insertion plate. After installing the main wall panel in the above manner, there is still a problem that the middle parts of the upper and lower sub-boards and the edge closing plate are not supported and are prone to collapse under force. Therefore, in this embodiment, the support assembly further includes a flattening member. The flattening member includes a plurality of base plates. The base plates are arranged between adjacent two first adjusting members and abut against the main wall panel to provide support through the base plates. The base plates can be connected to the first adjusting member in any way, preferably a fixed connection. In this embodiment, in order to facilitate the connection of the base plates, the first adjusting member further includes a support plate. The support plate is arranged between the first insertion strip and the slotted plate and is perpendicular to the first insertion strip. When installing the base plate, the end of the base plate is overlapped with the support plate and fixed by a screw. The support plate is also preferably made of a relatively thick hollow plate to improve the fixing effect on the base plate.Considering that both the first insertion bar and the support plate require relatively thick plates, while the slot plate and the main insertion plate require relatively thin plates, it is preferably to integrally form the first insertion bar and the support plate, integrally form the slot plate and the main insertion plate, and then connect the slot plate and the support plate. At this time, considering the connection problem between the two, a fixing plate parallel to the main insertion plate is also connected to the slot plate, so that the fixing plate, the slot plate and the main insertion plate form an I-shaped part. During use, the fixing plate and the support plate can be connected by screws.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A right-angle closing component for a concave-convex background wall, the concave-convex background wall comprising a plurality of wall panels (3), characterized in that: The right-angle closing component includes four mounting bars (1) and a closing frame (2). The four mounting bars (1) are all fixedly connected to the wall, and the four mounting bars (1) are spliced to form a rectangular frame. The closing frame (2) is arranged inside the rectangular frame, and the wall panel (3) is arranged outside the rectangular frame. The closing frame (2) is formed by connecting the four side plates end to end. One end of the mounting bar (1) abuts against the end face of the wall panel (3), and the other end abuts against the side plate of the closing frame (2). The mounting bar (1) includes a fixing part and an adjusting part. The fixing part is fixedly connected to the wall and is provided with an insertion groove (111). The adjusting part includes an insertion bar (121) for inserting into the insertion groove (111) in a direction non-parallel to the wall, and a receiving plate (122) connected to the insertion bar (121). The receiving plate (122) is parallel to the wall. One end of the receiving plate (122) abuts against the end face of the wall panel (3), and the other end abuts against the side plate of the closing frame (2). The fixing part includes a bottom plate (112) connected to the wall, a first side plate (113) non-parallelly connected to the bottom plate (112), and a second side plate (114) non-parallelly connected to the bottom plate (112). The insertion groove (111) is formed among the bottom plate (112), the first side plate (113), and the second side plate (114). The outer side face of the first side plate (113) away from the insertion groove (111) is flush with the end face of the receiving plate (122). One end of the receiving plate (122) abutting against the wall panel is provided with a stop bump (123), and the stop bump (123) abuts against the side of the wall panel close to the wall.

2. The right-angle closing component for the concave-convex background wall according to claim 1, characterized in that: The insertion bar (121) is inserted into the insertion groove (111) in a direction perpendicular to the wall.

3. The right-angle closing component for the concave-convex background wall according to claim 1, wherein: The inner wall of the insertion groove (111) or / and the outer wall of the insertion bar (121) is provided with friction lines.

4. The right-angle closing component for a concave-convex background wall according to claim 1, characterized in that: It also includes fixing screws for connecting the first side plate (113), the insertion bar (121), and the second side plate (114).

5. The right-angle closing component for a concave-convex background wall according to claim 1, characterized in that: The first side plate (113), the second side plate (114), and the insertion bar (121) are all hollow inside.

6. The right-angle closing component for the concave-convex background wall according to claim 1, characterized in that: The bottom plate (112) includes a glue connection part glued to the wall and a screw connection part connected to the wall by connection screws.

7. A right-angle closing component for a concave-convex background wall according to claim 6, characterized in that: The screw connection part is hollow inside and is provided with a reinforcement plate (115). The reinforcement plate (115) includes a reinforcement part through which the connection screw passes.

Citation Information

Patent Citations

  • Fabricated large-board television background wall

    CN113266119A

  • Right-angle closing-up assembly for concave-convex background wall

    CN217353290U