Adjustable chain type mute structure of sofa

Abstract

The utility model relates to the technical field of bending parts, in particular to an adjustable chain type mute structure of a sofa, which comprises two pairs of upper fixing pieces and lower fixing pieces, mounting holes are formed in the outer walls of the upper fixing pieces and the lower fixing pieces, and the upper fixing pieces and the lower fixing pieces are fixedly mounted at backrest parts or armrest mounting parts of the sofa through screws. An upper extension piece is arranged between the pair of upper fixing pieces, rivet holes are formed in the outer walls of the upper fixing pieces and the outer wall of the upper extension piece, a lower extension piece is arranged between the pair of lower fixing pieces, rivet holes are formed in the outer walls of the lower fixing pieces and the outer wall of the lower extension piece, rivets are inserted into the rivet holes, and an upper connecting piece is connected between each pair of rivets. Angles of a plurality of independent sofas or headrests and backrests of the sofas can be adjusted, the structure is simple, and noise is basically avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bending components, in particular to an adjustable chain type silent structure for a sofa. Background Art

[0002] Sofas have become essential furniture in many families. Generally, the sofas sold on the market include low-back sofas, high-back sofas, and combined sofas spliced together. For example, a combined sofa as described in the patent (CN221060127U) which is easy to assemble quickly. By installing connecting components on the support base on the right side of the single sofa, after aligning the single sofa and the reclining sofa side by side, operations can be carried out at the front end of the sofa, making the assembly of the sofa faster. However, its connecting components can only combine sofas and cannot rotate and bend well, with limited scope of application. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the defects existing in the prior art, and a sofa adjustable chain type silent structure is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Design an adjustable chain type silent structure for a sofa, including two pairs of upper fixing pieces and lower fixing pieces. Mounting holes are opened on the outer walls of the upper fixing pieces and the lower fixing pieces, and they are fixedly installed at the sofa backrest part or the armrest installation part by screws. An upper extension piece is arranged between a pair of the upper fixing pieces. Rivet holes are opened on the outer walls of the upper fixing pieces and the upper extension piece. A lower extension piece is arranged between a pair of the lower fixing pieces. Rivet holes are opened on the outer walls of the lower fixing pieces and the lower extension piece. Rivets are inserted into the rivet holes, and an upper connecting piece is connected between each pair of rivets.

[0006] Preferably, a limiting hole is opened on the outer wall of the lower fixing piece, and a limiting block is integrally formed on the outer wall of the upper fixing piece. The limiting block is inserted into the limiting hole.

[0007] Preferably, bending parts are arranged on the outer walls of the upper fixing pieces, the lower fixing pieces, the upper extension pieces, and the lower extension pieces.

[0008] Preferably, a convex block is arranged on one side of the upper extension piece and the lower extension piece, and a clamping groove is opened on the other side of the upper extension piece and the lower extension piece. The convex block abuts against the clamping groove.

[0009] Preferably, the convex blocks on the upper extension piece and the lower extension piece are staggered with the convex blocks not on the upper extension piece and the lower extension piece.

[0010] The adjustable chain type silent structure for a sofa proposed by the utility model has the following beneficial effects:

[0011] 1. Adopt a chain-like combined splicing structure, which can be adjusted according to the actual length of the sofa and the connection spacing, with a wider scope of application;

[0012] 2. The entire bending component can be bent, enabling multiple individual sofas, or the headrests and backrest components of the sofa, to be adjusted in angle;

[0013] 3. The entire bending component has no gear components. After rotating to the appropriate angle, it relies on the damping effect between the components and cannot rotate independently, with basically no noise during rotation. Description of the Drawings

[0014] Figure 1 An isometric view of an adjustable chain-type silent structure for a sofa proposed by the present utility model;

[0015] Figure 2 An exploded view of an adjustable chain-type silent structure for a sofa proposed by the present utility model;

[0016] Figure 3 A structural schematic diagram of an adjustable chain-type silent structure for a sofa proposed by the present utility model;

[0017] Figure 4 A structural schematic diagram of the connection structure of the upper extension piece of an adjustable chain-type silent structure for a sofa proposed by the present utility model.

[0018] In the figure: 1 upper fixing piece, 2 lower fixing piece, 3 limiting hole, 4 rivet hole, 5 upper connecting piece, 6 rivet, 7 bending part, 8 upper extension piece, 9 lower extension piece, 10 lower connecting piece, 11 convex block, 12 clamping groove. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Refer to Figure 1 、 2 , an adjustable chain-type silent structure for a sofa, including two pairs of upper fixing pieces 1 and lower fixing pieces 2. Mounting holes are opened on the outer walls of the upper fixing pieces 1 and lower fixing pieces 2, and they are fixedly installed at the sofa backrest part or the armrest installation part by screws. Both ends of the bending component are arranged at the sofa connection part or the backrest connection part to push the backrest or one side of the sofa to achieve the bending function. An upper extension piece 8 is arranged between a pair of upper fixing pieces 1. Rivet holes 4 are opened on the outer walls of the upper fixing pieces 1 and the upper extension piece 8. A lower extension piece 9 is arranged between a pair of lower fixing pieces 2. Rivet holes 4 are opened on the outer walls of the lower fixing pieces 2 and the lower extension piece 9. Rivets 6 are inserted into the rivet holes 4, and an upper connecting piece 5 is connected between each pair of rivets 6.

[0021] Refer toFigure 2 , 3 , a limiting hole 3 is formed in the outer wall of the lower fixing piece 2, a limiting block is integrally formed on the outer wall of the upper fixing piece 1, the limiting block is inserted into the limiting hole 3, and bending parts 7 are arranged on the outer walls of the upper fixing piece 1, the lower fixing piece 2, the upper extension piece 8 and the lower extension piece 9. The arranged bending parts 7 make there be a certain distance between the upper fixing piece 1, the lower fixing piece 2, the upper extension piece 8 and the lower extension piece 9. After being fixed by rivets 6, two mutual acting forces are maintained between the upper fixing piece 1, the lower fixing piece 2, the upper extension piece 8 and the lower extension piece 9, and a certain tightness is achieved to realize the damping effect.

[0022] Referring to Figure 4 , a convex block 11 is arranged on one side of the upper extension piece 8 and the lower extension piece 9, a clamping groove 12 is formed on the other side of the upper extension piece 8 and the lower extension piece 9, the convex block 11 abuts in the clamping groove 12, and the convex blocks 11 on the upper extension piece 8 and the lower extension piece 9 are staggered with the convex blocks 11 not on the upper extension piece 8 and the lower extension piece 9. Under the action of the structure of the convex block 11 cooperating with the clamping groove 12, the rivets 6 and the upper connecting piece 5, the rotation angle is limited, such as 90° - 180°, which conforms to the rotation angle of the sofa backrest or the pillow.

[0023] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An adjustable chain-type silent structure for a sofa, comprising two pairs of upper fixing pieces (1) and lower fixing pieces (2). Mounting holes are formed in the outer walls of the upper fixing pieces (1) and the lower fixing pieces (2), and they are fixedly installed at the sofa backrest part or the armrest installation part by screws. It is characterized in that: An upper extension piece (8) is arranged between a pair of the upper fixing pieces (1). Rivet holes (4) are formed in the outer walls of the upper fixing pieces (1) and the upper extension piece (8). A lower extension piece (9) is arranged between a pair of the lower fixing pieces (2). Rivet holes (4) are formed in the outer walls of the lower fixing pieces (2) and the lower extension piece (9). Rivets (6) are inserted into the rivet holes (4), and an upper connecting piece (5) is connected between each pair of the rivets (6).

2. The adjustable chain-type silent structure of a sofa according to claim 1, wherein: A limiting hole (3) is formed in the outer wall of the lower fixing piece (2), and a limiting block is integrally formed on the outer wall of the upper fixing piece (1) and inserted into the limiting hole (3).

3. The adjustable chain-type silent structure of a sofa according to claim 1, wherein: Bending parts (7) are arranged on the outer walls of the upper fixing piece (1), the lower fixing piece (2), the upper extension piece (8) and the lower extension piece (9).

4. A sofa adjustable chain type silent structure according to claim 1, characterized in that: A convex block (11) is arranged on one side of the upper extension piece (8) and the lower extension piece (9), and a clamping groove (12) is formed on the other side of the upper extension piece (8) and the lower extension piece (9). The convex block (11) abuts against the clamping groove (12).

5. The adjustable chain type silent structure of a sofa according to claim 4, wherein: The positions of the convex blocks (11) on the upper extension piece (8) and the lower extension piece (9) are staggered with the positions of the convex blocks (11) not on the upper extension piece (8) and the lower extension piece (9).

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