CN210672774U

CN210672774U - Detachable sofa backrest assembly

Info

Publication number: CN210672774U
Application number: CN201920665613.5U
Authority: CN
Inventors: 张艳召; 杨雪鹏; 杨文兵
Original assignee: Man Wah Furniture Manufacturing Huizhou Co Ltd
Current assignee: Man Wah Furniture Manufacturing Huizhou Co Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-06-05
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses a detachable sofa backrest component, which comprises a middle module part, a side wing module part, a connecting component and a spring component, wherein the connecting component comprises a first component and a second component; the second component comprises a base and two guide strips arranged on the base, and the two guide strips are respectively clamped with the two guide rails in a sliding manner; the spring assembly comprises a support, a spring hook and a serpentine spring arranged on the spring hook, and the spring hook is hooked on the support. The utility model has novel structure, the second component is inserted into the first component, the two guide strips are clamped with the two guide rails, and the firm insertion between the middle module piece and the side wing module piece can be realized; in addition, the installation of the serpentine spring on the sofa backrest is realized by adopting the detachable spring hook, the complicated assembly process is simplified, and the disassembly, assembly and replacement of the spring are convenient.

Description

Detachable sofa backrest assembly

Technical Field

The utility model relates to a sofa field, concretely relates to detachable sofa backrest assembly.

Background

As a common household article, the sofa is an essential seat for family household life. However, the backrest and the main seat of the sofa in the market are usually integrally formed, the backrest and the main seat cannot be disassembled, and the volume and the weight of the sofa are usually larger and heavier, so that much inconvenience is brought to carrying and loading the sofa, and the transportation cost is increased. In addition, the spring on the existing sofa backrest is generally welded or anchored on the spring support frame, when the spring is damaged, part of the sofa is deformed, and the whole sofa can be scrapped when the part is serious; the disassembly also results in damage to the overall frame of the sofa backrest, resulting in increased costs.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a detachable sofa backrest component.

The utility model discloses a solve the technical scheme that its problem adopted and be:

the utility model provides a detachable sofa backrest assembly, includes middle module spare, divide the flank module spare of establishing in middle module spare both sides, be used for connecting the coupling assembling of middle module spare and flank module spare and set up the spring unit on middle module spare, wherein:

the connecting assembly comprises a first member and a second member, wherein the first member comprises a base plate, two guide rails arranged on the base plate at intervals and a limiting mechanism arranged on the base plate and positioned below the two guide rails; the second component comprises a base and two guide strips arranged on the base at intervals, and the two guide strips are respectively clamped with the two guide rails in a sliding manner;

the spring assembly comprises a support fixedly mounted on the middle module piece, a plurality of serpentine springs arranged on the support and spring hooks respectively arranged on two sides of the serpentine springs, and spring accommodating grooves are formed in the spring hooks; the spring hook is hooked on the support.

Specifically, the middle module and the side wing module are all blown parts.

The utility model discloses a detachable sofa backrest subassembly works as when the second component is pegged graft in first component, two guide strips on the second component just with two guide rail slip joints on the first component, moreover stop gear can with the one end looks butt of second component, avoided the further slip of second component to realized firmly pegging graft between first component and the second component, and then realized the firm grafting between middle module spare and the flank module spare.

Further, the base plate is fixedly connected with the middle module piece, and the base is fixedly connected with the side wing module piece.

Further, the base is fixedly connected with the middle module piece, and the substrate is fixedly connected with the side wing module piece.

Further, the base plate is of a long strip plate shape, the guide rail is of a first bending structure formed by bending one side of the base plate towards one surface of the base, and the limiting mechanism is of a second bending structure formed by bending the side of the base plate close to the end part towards the same side direction as the first bending structure.

Specifically, the degree of buckling of the second bending structure is greater than that of the first bending structure, so that the second bending structure can be abutted against the guide strip, and further sliding of the guide strip is prevented.

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

Furthermore, a groove is formed in the middle module piece corresponding to the spring hook.

Through setting up the recess, can prevent that spring hook from producing with middle module spare and interfering.

Furthermore, the cross section of the base is n-shaped, and the guide strip is a third bending structure formed by bending two side plates of the base towards the outside.

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

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

Further, it is protruding to be equipped with T type on the spring hook, the position that corresponds spring hook on the support is equipped with first mounting hole, first mounting hole and joint are fixed are passed to T type arch.

Furthermore, an arc structure is arranged on the T-shaped protrusion, and an arc hole matched with the arc structure is arranged on the first mounting hole.

Because the spring hook is provided with the T-shaped bulge, part of the structure of the spring hook is similar to an I shape; after the T type arch passed first mounting hole, the circular arc structure that sets up department in the middle of the T type arch carries out the free rotation location back round the circular arc hole on the first mounting hole, two sunken departments of "worker" type structure on the spring hanger just with the support butt to the realization is with the fixed connection of spring hanger and support.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a detachable sofa backrest subassembly decomposes the backrest subassembly into a plurality of module spare that simple structure, quantity retrencied to it is fixed to adopt special design's coupling assembling to carry out the joint with it, need not to adopt fastening part, has simplified assembly process greatly.

2. The utility model discloses a detachable sofa backrest subassembly adopts specific spring hook to realize that the snake spring is installed on the sofa backrest detachablely, has simplified numerous and diverse assembly process, makes things convenient for the dismouting replacement of snake spring.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partial enlarged view of portion B of FIG. 1;

FIG. 4 is an enlarged view of a portion C of FIG. 1;

FIG. 5 is a schematic view of the construction of the middle modular member of FIG. 1;

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

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

FIG. 8 is a schematic view of the spring hanger of FIG. 4;

fig. 9 is a schematic structural view of the stent of fig. 4.

Wherein the reference numerals have the following meanings:

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

Detailed Description

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

Unless defined otherwise, 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 terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1-8, the utility model discloses a detachable sofa backrest assembly, including middle module 1 and the flank module 2 that sets up respectively in middle module 1 both sides, this middle module 1 and flank module 2 are the blow-moulding piece. The middle module piece 1 is in a long plate shape and has a hollow structure, and at least one gourd-shaped groove is further arranged at the hollow structure, so that compared with the traditional new sofa backrest, the middle module piece has the advantages of light weight, low cost, high strain resistance and the like. The middle module piece 1 and the side wing module piece 2 are connected through a connecting component. The connecting 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, the base plate 311 is in a long plate shape and is provided with an accommodating groove 314, and a second mounting hole 3141 is further provided at the bottom of the accommodating groove 314, so as to facilitate the head of a threaded fastener such as a screw, a bolt, or other types of fasteners such as a rivet, to be accommodated in the accommodating groove 314. In order to fix the first member 31 and the intermediate module 1 more firmly, the base plate 311 is further provided with a plurality of second mounting holes 3141 spaced along the length direction of the base plate 311. The substrate 311 is further provided with two guide rails 312 at intervals, in this embodiment, the two guide rails 312 are a first bending structure formed by bending the side edge of the substrate 311 toward the inside, and the first bending structure and the substrate 311 are integrally formed. It should be noted that, without departing from the concept of the present invention, the position and shape of the guide rail 312 may be changed, and the guide rail 312 may also be an inverted L-shaped rib plate, and is fixed on the base plate 311 by welding.

Referring to fig. 3, the second component 32 includes a base 321, in the embodiment, the base 321 is fixedly connected to the wing module 2, and the cross section of the base 321 is n-shaped and is provided with a plurality of third mounting holes 323 for fixedly connecting to the wing module 2; two guide bars 322 are further arranged on the base 321 at intervals, and the two guide bars 322 are respectively in sliding clamping connection with the two guide rails 312; in this embodiment, the guiding bar 322 is a third bending structure formed by bending two side plates of the base 321 towards the outside. In other embodiments, the position and shape of the guide strip 322 may be changed, as long as the sliding engagement with the guide rail 312 is achieved.

Referring to fig. 2, the first member 31 is further provided with a position-limiting mechanism 313, and the position-limiting mechanism 313 is fixedly mounted on the substrate 311 and located below the two guide rails 312; in this embodiment, the position-limiting mechanism 313 is a second bending structure formed by bending the side of the substrate 311 near the end toward the same side as the first bending structure, and the bending degree of the second bending structure is greater than that of the first bending structure. The limiting mechanism 313 is used for abutting against one end of the second member 32 when the second member 32 is inserted into the first member 31, so that the second member 32 is prevented from further sliding. It should be noted that, without departing from the concept of the present invention, the position and shape of the position-limiting mechanism 313 may be changed in various ways, and the position-limiting mechanism 313 may also be a stopper disposed below the guide rail 312, as long as the purpose of preventing the second member 32 from further sliding after being clamped is achieved.

Referring to fig. 6 and 7, the distance between the two guide rails 312 on the base 311 gradually decreases along the length direction of the base 311, and meanwhile, in order to match the size between the two guide rails 312, the distance between the two guide bars 322 on the base 321 also gradually decreases along the length direction of the base 321, so that the two guide bars 322 are exactly clamped in the two guide rails 312, and the sliding clamping is more tightly clamped.

Referring to fig. 4, 8 and 9, the detachable sofa backrest assembly further includes a spring assembly, which is composed of a bracket 41, a spring hook 42 and a coil spring 43. The bracket 41 is provided with a fourth mounting hole 412, so that the bracket can be conveniently and fixedly mounted on the middle module member 1 by using fasteners such as screws, bolts and the like. The spring hook 42 is provided with a T-shaped bulge 421, and the middle of the T-shaped bulge is provided with an arc structure 4211; due to the T-shaped projection 421, the part of the spring hook 42 is similar to the I shape; the bracket 41 is provided with a first mounting hole 411 for mounting with the spring hook 42, and in this embodiment, a plurality of first mounting holes 411 are uniformly distributed along the length direction of the bracket 41. Further, the first mounting hole 411 is provided with an arc hole 4111 which is fitted to the arc structure 4211. When the spring hook 42 needs to be hooked on the support 41, the T-shaped protrusion 421 on the spring hook 42 firstly passes through the first mounting hole 411, and after the circular arc structure 4211 arranged on the T-shaped protrusion 421 rotates freely around the circular arc hole 4111 on the first mounting hole 411 to be positioned, the left and right concave parts of the i-shaped structure on the spring hook 42 are just abutted to the support 41, so that the spring hook 42 and the support 41 are fixedly connected. In addition, one end of the spring hook 42, which faces away from the T-shaped protrusion 421, is further provided with a protrusion 422 and a hook portion 423, and a spring accommodating groove is formed between the protrusion 422 and the hook portion 423; the two ends of the serpentine spring 43 are respectively provided with spring hooks 42, and the end portions thereof respectively penetrate through the spring receiving grooves to be fixed, thereby realizing that the serpentine spring 43 is detachably mounted on the bracket 41.

Referring to fig. 5, a groove 11 is formed in the middle module 1 at a position corresponding to the spring hook 42, so as to prevent the T-shaped protrusion 421 from interfering with the middle module 1 after passing through the first mounting hole 411.

To sum up, the utility model provides a pair of detachable sofa backrest subassembly decomposes the backrest subassembly into a plurality of module spare that simple structure, quantity retrencied to it is fixed to adopt specially designed's coupling assembling to carry out the joint with it, need not to adopt fastening part, has simplified assembly process greatly. In addition, the sofa adopts the specific spring hook 42 to realize that the serpentine spring is detachably arranged on the backrest of the sofa, thereby simplifying complicated assembly procedures and facilitating the disassembly, assembly and replacement of the serpentine spring.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a detachable sofa backrest assembly, includes middle module spare (1) and divides flank module spare (2) of establishing in middle module spare (1) both sides, its characterized in that still includes the coupling assembling that is used for connecting middle module spare (1) and flank module spare (2) and sets up the spring unit on middle module spare (1), wherein:

the connecting assembly comprises a first member (31) and a second member (32), wherein the first member (31) comprises a substrate (311), two guide rails (312) arranged on the substrate (311) at intervals and a limiting mechanism (313) arranged on the substrate (311) and positioned below the two guide rails (312); the second component (32) comprises a base (321) and two guide strips (322) arranged on the base (321) at intervals, and the two guide strips (322) are respectively in sliding clamping connection with the two guide rails (312);

the spring assembly comprises a support (41) fixedly mounted on the middle module piece (1), a plurality of serpentine springs (43) arranged on the support (41) and spring hooks (42) respectively arranged on two sides of the serpentine springs (43), and spring accommodating grooves are formed in the spring hooks (42); the spring hook (42) is hooked on the support (41).

2. The removable sofa backrest assembly according to claim 1, wherein the base plate (311) is fixedly connected to the middle module piece (1) and the base (321) is fixedly connected to the side flap module piece (2).

3. The removable sofa backrest assembly according to claim 1, wherein the base (321) is fixedly connected to the middle module piece (1) and the base plate (311) is fixedly connected to the side flap module piece (2).

4. The detachable sofa backrest assembly according to claim 2 or 3, wherein the base plate (311) is in the shape of a long strip, the guide rail (312) is a first bending structure formed by bending a side edge of the base plate (311) towards one side of the base (321), and the limiting mechanism (313) is a second bending structure formed by bending a side edge of the base plate (311) close to the end towards the same side direction as the first bending structure.

5. The removable sofa backrest assembly according to claim 4, wherein the distance between the two guide rails (312) is gradually decreased along the length direction of the base plate (311).

6. Detachable sofa backrest assembly according to claim 5, characterised in that the middle module piece (1) is provided with a groove (11) in the position corresponding to the spring hook (42).

7. The detachable sofa backrest assembly according to claim 2 or 3, wherein the base (321) has a "n" shape in cross section, and the guiding strip (322) is a third bending structure formed by bending two side plates of the base (321) towards the outside.

8. The removable sofa backrest assembly according to claim 7, wherein the distance between the two guide strips (322) is gradually decreased along the length direction of the base (321).

9. The detachable sofa backrest assembly according to claim 1, wherein the spring hook (42) is provided with a T-shaped protrusion (421), the bracket (41) is provided with a first mounting hole (411) corresponding to the spring hook (42), and the T-shaped protrusion (421) passes through the first mounting hole (411) and is fastened and fixed.

10. The detachable sofa backrest assembly according to claim 9, wherein the T-shaped protrusion (421) is provided with a circular arc structure (4211), and the first mounting hole (411) is provided with a circular arc hole (4111) matched with the circular arc structure (4211).