Sofa backrest corner device with optimized structure

Abstract

The utility model discloses a sofa backrest corner device with an optimized structure. The sofa backrest corner device comprises a corner bracket, the extending part comprises a first fluted disc, second fluted discs, a moving groove, a supporting strip, a moving block and a cross-shaped support, the first fluted disc is installed on the top of the corner support, the second fluted discs are distributed on the outer surface of the first fluted disc, the cross-shaped support is arranged on the upper surfaces of the second fluted discs, the moving groove is formed in the cross-shaped support, and the supporting strip is arranged on the moving groove. The supporting strip is installed on the top of the cross-shaped support, and the moving block is fixed to the bottom of the supporting strip. The sofa corner device commonly used in the current market mostly adopts a fixed structure design, the corner device is generally and directly supported at the bottom of the sofa, the size and the shape of a fixed bracket of the corner device are determined during production, necessary adjustability is lacked, different series of sofas are obviously different in size specification, and the sofa corner device is difficult to adjust. The length or width of the fixed bracket may be insufficient to cover a support area at the bottom of the sofa, causing scratches or collisions when the sofa is moved or used.

Description

Technical Field

[0001] This utility model relates to the field of sofa accessories technology, specifically to a sofa backrest corner swivel with optimized structure. Background Technology

[0002] In modern home life, sofas are important pieces of furniture for rest and entertainment, and their comfort and functionality are receiving increasing attention from consumers. The adjustability of the sofa backrest is one of the key factors in improving the sofa user experience, and the sofa backrest corner swivel is the core component to achieve this function.

[0003] Most sofa corner brackets currently on the market use a fixed structure design. The corner bracket is usually directly supported at the bottom of the sofa, and the size and shape of its fixed bracket are determined during production, lacking the necessary adjustability. However, due to the significant differences in size and specifications between different brands and series of sofas, whether it is a small single sofa, a medium-sized double sofa, or a large corner sofa or sectional sofa, their adaptation requirements for corner brackets are different. The length or width of the fixed bracket may not be sufficient to cover the support area at the bottom of the sofa, causing the sofa to wobble and become unstable during use. If the fixed bracket is too long or too wide, it will extend beyond the bottom of the sofa, causing scratches or collisions when moving or using the sofa. Utility Model Content

[0004] The purpose of this utility model is to provide a structurally optimized sofa backrest corner adjuster to solve the problems mentioned in the background section. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a structurally optimized sofa backrest corner adjuster, comprising:

[0006] Corner bracket;

[0007] The extension component includes a first gear, a second gear, a moving groove, a support bar, a moving block, and a cross bracket. The first gear is installed on the top of the corner bracket, the second gears are distributed on the outer surface of the first gear, the cross bracket is set on the upper surface of multiple second gears, the moving groove is opened inside the cross bracket, the support bar is installed on the top of the cross bracket, and the moving block is fixed to the bottom of the support bar and movably connected inside the moving groove.

[0008] Furthermore, the outer wall of the first gear disc is provided with a tooth groove, and a tooth block is fixed on the outer wall of the second gear disc, with the tooth block meshing and connected inside the tooth groove.

[0009] Furthermore, a rubber sleeve is bonded to the outer surface of the movable block, and the rubber sleeve is located on the inner surface of the movable groove.

[0010] Furthermore, it also includes a rotating component, which includes a turntable, a rotating shaft, and a column. The turntable is driven at the top and bottom of the first gear disc and is located at the top of the corner bracket. The rotating shaft is driven at the top of the second gear disc, and the column is fixed at the middle of the top of the rotating shaft.

[0011] Furthermore, the rotating component also includes a fixing groove, a rubber ring, and a limiting ring. The fixing groove is opened in the middle of the support bar, the rubber ring is embedded in the inner surface of the fixing groove, and the limiting ring is fixed to the top and bottom of the rubber ring.

[0012] Furthermore, it also includes a support component, which includes a drive shaft, a support plate one, and a support plate two. The support plate one and the support plate two are respectively disposed on the outer surface of the cross bracket, and the two support plates one intersect each other. The drive shaft drives between the two support plates one.

[0013] Furthermore, a telescopic plate is provided between the first support plate and the second support plate.

[0014] This utility model has the following beneficial effects:

[0015] This utility model features a corner bracket with a toothed disc, a toothed disc, a cross bracket, and a support bar at its top. The corner bracket is mounted on top of multiple toothed discs via the cross bracket. The movable block can move freely within the movable groove, flexibly extending the position of the support bar. This allows for precise adjustment of the structure to suit different sofa models, from small, minimalist sofas to large, luxurious corner sofas, and various custom-sized sofas. The corner bracket can perfectly adapt to any size by adjusting the position of the support bar, greatly improving the product's versatility and applicability. The cross bracket fits snugly against the bottom of the sofa, providing stable support. This stable connection effectively reduces swaying and displacement during daily use, enhancing the overall stability of the sofa. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the corner bracket of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-shaped support of this utility model;

[0019] Figure 3 This is a schematic diagram of the support strip of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 100. Corner bracket;

[0022] 200. Gear Disc One; 201. Gear Groove; 202. Gear Disc Two; 203. Gear Block; 204. Moving Groove; 205. Support Bar; 206. Moving Block; 207. Rubber Sleeve; 208. Cross Bracket;

[0023] 300. Turntable; 301. Rotating shaft; 302. Column; 303. Fixing groove; 304. Rubber ring; 305. Limiting ring;

[0024] 400. Drive shaft; 401. Support plate one; 402. Telescopic plate; 403. Support plate two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this utility model is a structurally optimized sofa backrest corner adjuster, comprising:

[0028] Corner bracket 100;

[0029] The extension component includes a first gear 200, a second gear 202, a moving groove 204, a support bar 205, a moving block 206, and a cross bracket 208. The first gear 200 is installed on the top of the corner bracket 100, the second gear 202 is distributed on the outer surface of the first gear 200, the cross bracket 208 is disposed on the upper surface of the multiple second gears 202, the moving groove 204 is opened inside the cross bracket 208, the support bar 205 is installed on the top of the cross bracket 208, and the moving block 206 is fixed to the bottom of the support bar 205 and movably connected inside the moving groove 204.

[0030] This corner bracket 100 is installed on top of multiple toothed discs 202 via a cross bracket 208. The movable block 206 can move freely inside the movable groove 204, thereby flexibly extending the position of the support bar 205. This allows for precise adjustment of its structure according to the specific model of different sofas. The cross bracket 208 can fit tightly against the bottom of the sofa, providing stable support and enhancing the overall stability of the sofa.

[0031] The outer wall of the first gear disk 200 is provided with a tooth groove 201, and the outer wall of the second gear disk 202 is fixed with a tooth block 203, which is engaged with the inside of the tooth groove 201.

[0032] By rotating, the second gear disk 202 causes the tooth blocks 203 to correspond sequentially inside the tooth grooves 201, thereby driving the second gear disk 202 to rotate.

[0033] A rubber sleeve 207 is bonded to the outer surface of the movable block 206, and the rubber sleeve 207 is located on the inner surface of the movable groove 204;

[0034] When the moving block 206 moves, the rubber sleeve 207 contacts the inner wall of the moving groove 204, which can play a damping role.

[0035] It also includes a rotating component, which includes a turntable 300, a rotating shaft 301 and a column 302. The turntable 300 is driven at the top and bottom of the first gear disk 200 and is located at the top of the corner bracket 100. The rotating shaft 301 is driven at the top of the second gear disk 202 and the column 302 is fixed at the middle of the top of the rotating shaft 301.

[0036] The motor runs, driving the turntable 300 and the rotating shaft 301 to rotate, which in turn drives the gear disc 200 and the gear disc 202 to rotate.

[0037] The rotating component also includes a fixing groove 303, a rubber ring 304, and a limiting ring 305. The fixing groove 303 is opened in the middle of the support bar 205, the rubber ring 304 is embedded in the inner surface of the fixing groove 303, and the limiting ring 305 is fixed to the top and bottom of the rubber ring 304.

[0038] The fixing screw can be inserted into the rubber ring 304, so that the cross bracket 208 can be fixed to the bottom of the sofa.

[0039] Working principle: First, the corner bracket 100 is installed on top of multiple toothed discs 202 via a cross bracket 208. The moving block 206 can move freely within the moving groove 204, thereby flexibly extending the position of the support bar 205. This allows for precise adjustment of its structure according to the specific model of different sofas. Whether it's a small, minimalist sofa, a large, luxurious corner sofa, or a sofa of various custom sizes, this corner bracket can perfectly adapt by adjusting the position of the support bar 205, greatly improving the product's versatility and applicability. The cross bracket 208 can fit tightly against the bottom of the sofa, providing stable support. This stable connection method can effectively reduce the sofa's... The shaking and displacement during daily use enhance the overall stability of the sofa. Then, when the motor is turned on, the motor outputs power, which drives the connected turntable 300 to start rotating. The power is then transmitted in an orderly manner to the rotating shaft 301 connected to it on the same axis, so that the rotating shaft 301 starts to rotate synchronously. The rotation of the turntable 300 will directly drive the gear disc 200 to perform a circular motion. The gear disc 200 and the gear disc 202 are meshed with each other through the tooth block 203 and the tooth groove 201, which efficiently transmits the rotational power of the gear disc 200 to the gear disc 202, thereby causing the gear disc 202 to start rotating as well. When the gear disc 202 rotates, it will drive the sofa fixed to it to rotate together.

[0040] Please see Figure 1 , Figure 3 As shown, this embodiment, based on the above embodiment, further includes:

[0041] The support component includes a drive shaft 400, a first support plate 401 and a second support plate 403. The first support plate 401 and the second support plate 403 are respectively disposed on the outer surface of the cross bracket 208, and the two first support plates 401 intersect. The drive shaft 400 is driven between the two first support plates 401.

[0042] Support plate 1 401 and support plate 2 403 are supported between the cross bracket 208. When the support bar 205 moves, the drive shaft 400 rotates, driving support plate 1 401 and support plate 2 403 to move and support the support bar 205.

[0043] A telescopic plate 402 is provided between support plate 1 401 and support plate 2 403.

[0044] Working principle: First, when the position of the support bar 205 needs to be adjusted according to the specific model of the sofa, the support bar 205 will move within the corresponding track. The drive shaft 400 is manually adjusted and rotates under the drive of manual adjustment. The drive shaft 400 is located between the two support plates 401. It transmits the rotation to the support plates 401, causing them to rotate synchronously. The connected support plate 403 will also move accordingly. During the movement, the support plates 401 and 403 always maintain close contact with the support bar 205 and provide reliable support for it. They firmly clamp and support the support bar 205 from both sides, ensuring that the support bar 205 will not wobble, shift or other unstable phenomena during the movement.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A structurally optimized sofa backrest corner adjuster, characterized in that, include: Corner bracket (100); The extension component includes a first gear disc (200), a second gear disc (202), a moving groove (204), a support bar (205), a moving block (206), and a cross bracket (208). The first gear disc (200) is installed on the top of the corner bracket (100), the second gear discs (202) are distributed on the outer surface of the first gear disc (200), the cross bracket (208) is set on the upper surface of the multiple second gear discs (202), the moving groove (204) is opened inside the cross bracket (208), the support bar (205) is installed on the top of the cross bracket (208), and the moving block (206) is fixed to the bottom of the support bar (205) and movably connected inside the moving groove (204).

2. The sofa backrest corner adjuster with optimized structure according to claim 1, characterized in that: The outer wall of the first gear disc (200) is provided with a tooth groove (201), and a tooth block (203) is fixed on the outer wall of the second gear disc (202). The tooth block (203) is engaged and connected inside the tooth groove (201).

3. The sofa backrest corner adjuster with optimized structure according to claim 1, characterized in that: A rubber sleeve (207) is bonded to the outer surface of the movable block (206), and the rubber sleeve (207) is located on the inner surface of the movable groove (204).

4. The sofa backrest corner adjuster with optimized structure according to claim 1, characterized in that: It also includes a rotating component, which includes a turntable (300), a rotating shaft (301), and a column (302). The turntable (300) is driven at the top and bottom of the first gear disc (200) and is located at the top of the corner bracket (100). The rotating shaft (301) is driven at the top of the second gear disc (202), and the column (302) is fixed at the middle of the top of the rotating shaft (301).

5. A sofa backrest corner adjuster with optimized structure according to claim 4, characterized in that: The rotating component also includes a fixing groove (303), a rubber ring (304), and a limiting ring (305). The fixing groove (303) is opened in the middle of the support bar (205), the rubber ring (304) is embedded in the inner surface of the fixing groove (303), and the limiting ring (305) is fixed to the top and bottom of the rubber ring (304).

6. The sofa backrest corner adjuster with optimized structure according to claim 1, characterized in that: It also includes a support component, which includes a drive shaft (400), a support plate one (401) and a support plate two (403). The support plate one (401) and the support plate two (403) are respectively disposed on the outer surface of the cross bracket (208), and the two support plates one (401) intersect, and the drive shaft (400) is driven between the two support plates one (401).

7. A sofa backrest corner adjuster with optimized structure according to claim 6, characterized in that: A telescopic plate (402) is provided between the first support plate (401) and the second support plate (403).

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