A sofa backrest ear
By designing sofa backrest lugs with reinforcing ribs and mounting holes, the problems of fragile sofa structure and unstable connections were solved, enabling flexible disassembly and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LINGCHUANG SHENGYU OPTOELECTRONICS TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-14
AI Technical Summary
Conventional sofas have a fragile structure, making them difficult to disassemble and move, and the connection between the backrest and armrests is unstable.
Design a sofa backrest lug, including a lug plate with reinforcing ribs and mounting holes for a stable connection between the backrest and armrests.
It achieves a stable connection for the sofa, making it easy to disassemble and move, and adapting to installation needs at different angles.
Smart Images

Figure CN224483485U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities, and in particular to a sofa backrest lug. Background Technology
[0002] Conventional sofas are usually made of a single piece, which is not only structurally fragile but also not flexible enough for situations requiring easy moving and adjustment. Nowadays, modular sofas have emerged, consisting of armrests connected to the backrest on both sides. However, the backrest and armrests often require additional structural elements, such as backrest lugs, to achieve a stable connection. Utility Model Content
[0003] To address the aforementioned issues, this utility model provides a sofa backrest lug, which can be used to stably connect the backrest and armrests to form a sofa, thus meeting the needs of sofas for flexible disassembly, transportation, and adjustment.
[0004] According to one aspect of the present invention, a sofa backrest lug is provided, including a lug plate. A recessed and vertically extending reinforcing rib is provided on the front side of the lug plate. Two through mounting holes are provided at the upper and lower ends of the rear side of the lug plate. The upper and lower ends of the left and right sides of the lug plate are provided with slots, and each mounting hole is located in the slot.
[0005] In some embodiments, the ear plate is rectangular. It is advantageous that the shape of the ear plate is described.
[0006] In some embodiments, the left and right sides of the ear plate are inclined. This is advantageous because it allows for easy adaptation to the installation angle between the sofa backrest and armrests.
[0007] In some embodiments, the lower portion of the ear plate is wider on the left and right than the upper portion. This has the advantage of providing considerable stability during placement and installation.
[0008] In some embodiments, the lower portion of the reinforcing rib is wider on the left and right than the upper portion. This is advantageous because the shape of the reinforcing rib can be matched to the shape of the ear plate.
[0009] In some embodiments, the two ends of the upper two mounting holes are respectively located in the two upper slots, and the two ends of the lower two mounting holes are respectively located in the two lower slots. The advantage is that it describes the specific manner in which each mounting hole is installed in its respective slot.
[0010] In some embodiments, the two mounting holes at the top or bottom are arranged vertically. The advantage is that the arrangement of each mounting hole is further described.
[0011] In some embodiments, the rear side of each of the slots extends onto the rear side of the aforementioned ear plate. Advantageously, the arrangement of each slot is further described. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a sofa backrest lug according to one embodiment of the present invention. Figure 1 ;
[0013] Figure 2 for Figure 1 The diagram shows the structure of a sofa backrest lug. Figure 2 ;
[0014] Figure 3 for Figure 1 The diagram shows a partial structural diagram of the backrest lugs of a sofa.
[0015] In the diagram: Ear plate 1, reinforcing rib 2, mounting hole 3, slot 4. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings.
[0017] like Figure 1-3 As shown, the backrest lug of the sofa mainly includes a lug plate 1, which is roughly rectangular in shape. The two vertical surfaces of the lug plate 1 are the left and right sides, and the side facing the armrest is the front side and the opposite side is the rear side.
[0018] Preferably, the left and right sides of the ear plate 1 can be set not to be vertical, but to be tilted at a certain angle, so as to accommodate the installation angle between the sofa back and the armrest.
[0019] More preferably, both sides of the ear plate 1 are inclined from bottom to top towards the middle, that is, the width of the lower part of the ear plate 1 is greater than that of the upper part, which can make the ear plate 1 have considerable stability when placed and installed.
[0020] A recessed and vertically extending reinforcing rib 2 is provided on the front side of the ear plate 1. The reinforcing rib 2 can improve the structural strength of the ear plate 1.
[0021] Preferably, when the left and right widths of the upper and lower parts of the ear plate 1 are inconsistent, the left and right widths of the upper and lower parts of the reinforcing rib 2 can also be inconsistent, as shown in the attached figure. When the left and right width of the lower part of the ear plate 1 is greater than that of the upper part, the left and right width of the reinforcing rib 2 is also greater than that of the upper part.
[0022] At both the upper and lower ends of the rear side of the ear plate 1, there are two mounting holes 3 that penetrate the left and right sides of the ear plate 1, resulting in a total of four mounting holes 3. Additionally, at both the upper and lower ends of the left and right sides of the ear plate 1, there are also four slots 4, with each mounting hole 3 located within one of these slots.
[0023] Preferably, the two ends of the two upper mounting holes 3 are respectively located in the two upper slots 4, and the two ends of the two lower mounting holes 3 are respectively located in the two lower slots 4.
[0024] In a further preferred embodiment, the two mounting holes 3 at the top or bottom are arranged vertically within the slot 4.
[0025] Preferably, the rear side of each slot 4 extends to the rear side of the ear plate 1.
[0026] When in use, the two ear plates 1 can be placed on the left and right sides of the backrest and fixedly connected by screws or other corresponding connectors through the mounting holes 3 on the ear plates 1. Then, the armrests can be flexibly connected and disassembled through the ear plates 1 as needed. Corresponding connection holes are also provided on the backrest and armrests.
[0027] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.
Claims
1. A sofa backrest lug, characterized in that: It includes an ear plate (1), on the front side of the ear plate (1) there is a recessed and vertically extending reinforcing rib (2), and the upper and lower ends of the rear side of the ear plate (1) are provided with two through mounting holes (3), and the upper and lower ends of the left and right sides of the ear plate (1) are provided with slots (4), and each mounting hole (3) is located in each slot (4).
2. The sofa backrest lug according to claim 1, characterized in that: The ear plate (1) is rectangular.
3. A sofa backrest lug according to claim 1, characterized in that: The left and right sides of the ear plate (1) are inclined.
4. A sofa backrest lug according to claim 3, characterized in that: The lower part of the ear plate (1) is wider on the left and right than the upper part.
5. A sofa backrest lug according to claim 4, characterized in that: The lower part of the reinforcing rib (2) is wider on the left and right than the upper part.
6. A sofa backrest lug according to claim 1, characterized in that: The two ends of the two upper mounting holes (3) are respectively located in the two upper slots (4), and the two ends of the two lower mounting holes (3) are respectively located in the two lower slots (4).
7. A sofa backrest lug according to claim 6, characterized in that: The two mounting holes (3) at the top or bottom are set vertically.
8. A sofa backrest lug according to claim 1, characterized in that: The rear side of each of the aforementioned slots (4) extends to the rear side of the aforementioned ear plate (1).