CN110074589A - Detachable sofa backrest assembly - Google Patents

Abstract

The invention discloses a detachable sofa back assembly, which comprises a middle module, a side module, a connection assembly and a spring assembly, the connection assembly includes a first component and a second component, the first component includes a base plate, and is arranged on the base plate The two guide rails and the limit mechanism; the second component includes a base and two guide strips arranged on the base, and the two guide strips are respectively slidingly engaged with the two guide rails; the spring assembly includes a bracket, a spring hook and a spring hook arranged on the spring hook Snake spring, spring hanger hooks on the bracket. The invention has a novel structure, the second member is plugged into the first member, and the two guide strips are engaged with the two guide rails, so that the firm insertion between the middle module and the side module can be realized; in addition, a detachable The spring hook realizes the installation of the snake spring on the backrest of the sofa, which simplifies the complicated assembly process and facilitates the disassembly and replacement of the spring.

Description

A detachable sofa backrest assembly

technical field

The invention relates to the sofa field, in particular to a detachable sofa backrest assembly.

Background technique

As a common household item, the sofa is an indispensable seat in a family's home life. However, the backrest and the main seat of sofas on the market are usually integrally formed, and the backrest and main seat cannot be disassembled, and the volume and weight of the sofa are usually relatively large and heavy. . In addition, the springs on the backrest of the existing sofa are generally welded or anchored on the spring support frame. When the spring is damaged, some parts of the sofa will be deformed, and in severe cases, the entire sofa can be scrapped; The overall frame causes damage, resulting in increased costs.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects in the prior art, the present invention provides a detachable sofa backrest assembly.

The technical scheme that the present invention adopts for solving its problem is:

A detachable sofa backrest assembly, comprising a middle module, side wing modules arranged on both sides of the middle module, a connection assembly for connecting the middle module and the side wing modules, and a spring assembly arranged on the middle module, in:

The connection assembly includes a first component and a second component, the first component includes a base plate, two guide rails arranged at intervals on the base plate and a limiting mechanism arranged on the base plate and below the two guide rails; the second component includes The base and two guide strips arranged at intervals on the base, the two guide strips are respectively slidingly engaged with the two guide rails;

The spring assembly includes a bracket fixedly installed on the middle module, a number of snake springs arranged on the bracket, and spring hooks separately arranged on both sides of the snake spring, and spring accommodation grooves are arranged on the spring hooks; The spring hook is hooked on the bracket.

Specifically, the middle module and the side wing modules are all blow molding parts.

In the detachable sofa back assembly of the present invention, when the second member is plugged into the first member, the two guide strips on the second member just slide and engage with the two guide rails on the first member, and the limit The positioning mechanism can abut against one end of the second component, avoiding the further sliding of the second component, thereby realizing the firm insertion between the first component and the second component, and further realizing the connection between the middle module and the side module. securely plugged in.

Further, the base plate is fixedly connected to the middle module, and the base is fixedly connected to the side module.

Further, the base is fixedly connected to the middle module, and the base plate is fixedly connected to the side module.

Further, the substrate is in the shape of a strip, the guide rail is a first bending structure formed by bending the side of the substrate toward the base, and the limiting mechanism is the side of the substrate near the end The second bending structure is formed by bending the side toward the same side direction as the first bending structure.

Specifically, the bending degree of the second bending structure is greater than that of the first bending structure, so as to achieve abutment with the guide bar, thereby preventing further sliding of the guide bar.

Further, the distance between the two guide rails gradually decreases along the length direction of the substrate.

Further, grooves are provided on the intermediate module at positions corresponding to the spring hooks.

By providing the groove, it is possible to prevent the spring hook from interfering with the intermediate module.

Furthermore, the cross-section of the base is in the shape of "ㄇ", and the guide bar is a third bending structure formed by bending the two side plates of the base towards the outside.

Further, the distance between the two guide strips gradually decreases along the length direction of the base.

In order to match the size between the two guide rails, the distance between the two guide strips is gradually reduced along the length direction of the base, so that when the two guide strips are clamped in the two guide rails, they can be clamped more tightly .

Further, a T-shaped protrusion is provided on the spring hook, and a first installation hole is provided on the bracket corresponding to the position of the spring hook, and the T-shaped protrusion passes through the first installation hole and is clamped and fixed.

Further, the T-shaped protrusion is provided with an arc structure, and the first installation hole is provided with an arc hole matching the arc structure.

Since the spring hook is provided with a T-shaped protrusion, part of the structure of the spring hook is similar to an "I" shape; when the T-shaped protrusion passes through the first installation hole, the arc structure set in the middle of the T-shaped protrusion surrounds the After the arc hole on the first installation hole is freely rotated and positioned, the two depressions of the "I" structure on the spring hook just abut against the bracket, thereby realizing the fixed connection of the spring hook and the bracket.

Compared with the prior art, the beneficial effects of the present invention are:

1. The detachable sofa backrest assembly of the present invention decomposes the backrest assembly into a plurality of modular parts with simple structure and reduced quantity, and uses specially designed connection assemblies to clamp and fix them without using fastening parts, which greatly simplifies the assembly process.

2. The detachable sofa backrest assembly of the present invention adopts a specific spring hook to realize the detachable installation of the snake spring on the sofa backrest, which simplifies the complicated assembly process and facilitates the disassembly and replacement of the snake spring.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;

Fig. 2 is a partial enlarged view of part A in Fig. 1;

Fig. 3 is a partial enlarged view of part B in Fig. 1;

Fig. 4 is a partial enlarged view of part C in Fig. 1;

Fig. 5 is a schematic structural view of the intermediate module in Fig. 1;

Fig. 6 is a schematic structural view of the first member in Fig. 2;

Fig. 7 is a schematic structural view of the second member in Fig. 3;

Fig. 8 is a schematic structural view of the spring hook in Fig. 4;

FIG. 9 is a schematic structural diagram of the bracket in FIG. 4 .

Among them, the reference signs have the following meanings:

Middle module 1, groove 11, side module 2, first member 31, base plate 311, guide rail 312, limit mechanism 313, accommodation groove 314, second mounting hole 3141, second member 32, base 321 , guide bar 322, third mounting hole 323, bracket 41, first mounting hole 411, fourth mounting hole 412, arc hole 4111, spring hook 42, T-shaped protrusion 421, arc structure 4211, snake spring 43, The protruding portion 422 and the hook portion 423 .

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

Referring to Figures 1-8, the present invention discloses a detachable sofa backrest assembly, comprising a middle module 1 and side wing modules 2 respectively arranged on both sides of the middle module 1, the middle module 1 and the side wing modules 2 are both For blow molded parts. Among them, the middle module 1 is in the shape of a long plate and has a hollow structure, and at least one gourd-shaped groove is arranged at the hollow structure. Compared with the traditional solid new sofa backrest, it has light weight, low cost and relatively high strain resistance. Advanced advantages. The middle module 1 and the side module 2 are connected through a connection assembly. The connection assembly includes a first member 31 and a second member 32, the first member 31 includes a base plate 311, in this embodiment, the base plate 311 is fixedly connected to the middle module 1, and the base plate 311 is in the shape of a strip and An accommodating groove 314 is provided, and a second mounting hole 3141 is provided at the bottom of the accommodating groove 314, so that the heads of other types of fasteners such as screws and bolts or riveting parts are conveniently accommodated in the accommodating Set in the groove 314. In order to fix the first member 31 and the intermediate module 1 more firmly, the base plate 311 is also provided with a plurality of second mounting holes 3141 arranged at intervals along the length direction of the base plate 311 . Two guide rails 312 are arranged at intervals on the base plate 311. In this embodiment, the two guide rails 312 are the first bending structure formed by bending the sides of the base plate 311 toward the inside. The first bending structure and the base plate 311 One piece. It should be pointed out that, without departing from the concept of the present invention, various changes can be made to the position and shape of the guide rail 312. The guide rail 312 can also be an inverted L-shaped rib plate, and it can be fixed on the on the substrate 311.

Referring to Fig. 3, the second member 32 includes a base 321. In this embodiment, the base 321 is fixedly connected to the wing module 2. The third installation hole 323 for the fixed connection of the side wing module 2; two guide strips 322 are arranged at intervals on the base 321, and the two guide strips 322 are respectively slidingly engaged with the two guide rails 312; in this embodiment, the guide strips 322 The third bending structure is formed by bending the two side plates of the base 321 toward the outside. In other embodiments, various changes can be made to the position and shape of the guide bar 322 as long as the sliding engagement with the guide rail 312 can be realized.

Referring to Fig. 2 again, the first member 31 is also provided with a limit mechanism 313, which is fixedly mounted on the base plate 311 and located below the two guide rails 312; in this embodiment, the limit mechanism 313 is the base plate 311 The side near the end is bent toward the same side direction as the first bent structure to form a second bent structure, and the bent degree of the second bent structure is greater than that of the first bent structure. The function of the limiting mechanism 313 is that when the second member 32 is plugged into the first member 31 , the limiting mechanism 313 can abut against one end of the second member 32 to avoid further sliding of the second member 32 . It should be pointed out that without departing from the concept of the present invention, various changes can be made to the position and shape of the limit mechanism 313, and the limit mechanism 313 can also be a stopper arranged under the guide rail 312, as long as it can satisfy It is sufficient to prevent further sliding of the second member 32 after being engaged.

Referring to Fig. 6 and Fig. 7, the distance between the two guide rails 312 on the base plate 311 gradually decreases along the length direction of the base plate 311. The distance between the guide strips 322 also decreases gradually along the length direction of the base 321 , so that the two guide strips 322 are just locked in the two guide rails 312 , so that the sliding engagement is more secure.

Referring to FIG. 4 , FIG. 8 and FIG. 9 , the detachable sofa back assembly also includes a spring assembly, which is composed of a bracket 41 , a spring hook 42 and a snake spring 43 . The bracket 41 is provided with a fourth installation hole 412 , so that it is convenient to fix and install it on the middle module 1 by using fasteners such as screws and bolts. The spring hook 42 is provided with a T-shaped protrusion 421, and an arc structure 4211 is arranged in the middle of the T-shaped protrusion; due to the T-shaped protrusion 421, the partial structure of the spring hook 42 is similar to "work". font; the bracket 41 is provided with a first mounting hole 411 for assembling with the spring hook 42 , in this embodiment, there are a plurality of first mounting holes 411 evenly distributed along the length direction of the bracket 41 . In addition, the first mounting hole 411 is provided with an arc hole 4111 matched with the arc structure 4211 . When it is necessary to hook the spring hook 42 to the bracket 41, first the T-shaped protrusion 421 on the spring hook 42 passes through the first installation hole 411, and the arc structure 4211 arranged on the T-shaped protrusion 421 surrounds the first installation hole 411. After the arc hole 4111 on a mounting hole 411 is freely rotated and positioned, the left and right depressions of the "I"-shaped structure on the spring hook 42 just abut against the bracket 41, thereby realizing the connection between the spring hook 42 and the bracket 41. fixed connection between. In addition, the end of the spring hook 42 facing away from the T-shaped protrusion 421 is also provided with a protruding portion 422 and a hook portion 423, and a spring accommodating groove is formed between the protruding portion 422 and the crotch portion 423; the snake spring 43 Spring hooks 42 are respectively provided at both ends of the two ends, and the ends thereof are respectively fixed through the spring accommodating grooves, so that the snake spring 43 can be detachably installed on the bracket 41 .

Referring to FIG. 5 , grooves 11 are provided on the intermediate module 1 corresponding to the spring hooks 42 , so as to prevent the T-shaped protrusion 421 from interfering with the intermediate module 1 after passing through the first installation hole 411 .

To sum up, the present invention provides a detachable sofa backrest assembly, which decomposes the backrest assembly into a plurality of modular parts with simple structure and reduced quantity, and adopts specially designed connection assemblies to clamp and fix them without using Fastening parts, greatly simplifying the assembly process. In addition, the sofa adopts a specific spring hook 42 to realize the detachable installation of the snake spring on the backrest of the sofa, which simplifies the complicated assembly process and facilitates the disassembly and replacement of the snake spring.

The technical means disclosed in the solutions of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims (10)

1. a kind of detachable sofa backrest module including intermediate die block part (1) and sets up separately in the side of intermediate die block part (1) two sides Wing modular member (2), which is characterized in that further include for connect the connection component of intermediate die block part (1) and flank modular member (2) with And the spring assembly being arranged on intermediate die block part (1), in which:

The connection component includes first component (31) and second component (32), the first component (31) include substrate (311), Two guide rails (312) being arranged at intervals on substrate (311) and setting on substrate (311) and are located at below two guide rails (312) Position-limit mechanism (313)；The second component (32) includes pedestal (321) and two gib blocks that are arranged at intervals on pedestal (321) (322), two gib block (322) is slided with two guide rails (321) be clamped respectively；

The spring assembly includes the bracket (41) being fixedly mounted on the intermediate die block part (1), is arranged on bracket (41) Several snake springs (43) and set up spring carrier arm (42) in snake spring (43) two sides separately, the spring carrier arm (42) is equipped with Spring mounting groove；The spring carrier arm (42) is hooked on the bracket (41).

2. detachable sofa backrest module according to claim 1, which is characterized in that the substrate (311) and centre Modular member (1) is fixedly connected, and the pedestal (321) is fixedly connected with flank modular member (2).

3. detachable sofa backrest module according to claim 1, which is characterized in that the pedestal (321) and centre Modular member (1) is fixedly connected, and the substrate (311) is fixedly connected with flank modular member (2).

4. detachable sofa backrest module according to claim 2 or 3, which is characterized in that the substrate (311) is length Plate, the guide rail (312) are that the one side bending of side towards the pedestal (321) of substrate (311) is formed by first Bending structure, the position-limit mechanism (313) are substrate (311) by the side of close end direction and the same side of the first bending structure The second bending structure is formed by bending.

5. detachable sofa backrest module according to claim 4, which is characterized in that between two guide rail (312) Spacing be gradually reduced along the length direction of substrate (311).

6. detachable sofa backrest module according to claim 5, which is characterized in that on the intermediate die block part (1) The position of the corresponding spring carrier arm (42) is equipped with groove (11).

7. detachable sofa backrest module according to claim 2 or 3, which is characterized in that the pedestal (321) is cut Face is in " ㄇ " shape, and the gib block (322) is formed by third bending structure towards bend external for pedestal (321) both side plate.

8. detachable sofa backrest module according to claim 7, which is characterized in that two gib block (322) it Between spacing be gradually reduced along the length direction of pedestal (321).

9. detachable sofa backrest module according to claim 1, which is characterized in that (42) are set on the spring carrier arm There is T-type raised (421), the position that spring carrier arm (42) is corresponded on the bracket (41) is equipped with the first mounting hole (411), the T Type protrusion (421) passes through the first mounting hole (411) and connects and fixes.

10. detachable sofa backrest module according to claim 9, which is characterized in that on the T-type raised (421) Equipped with arc structure (4211), first mounting hole (411) is equipped with the circular hole matched with the arc structure (4211) (4111)。