Folding decomposition type sofa frame and sofa

Abstract

The utility model relates to the technical field of sofas, in particular to a folding decomposition type sofa frame and a sofa, which comprise a sofa seat frame, a spring frame and a backrest frame, the sofa seat frame comprises two main cross beams, two main longitudinal beams and a plurality of supporting legs, and an L-shaped connecting piece is fixed at the top of each supporting leg. The butt joint ends of the main cross beams and the main longitudinal beams are rotationally connected with the corresponding L-shaped connecting pieces, the spring frame covers a frame formed by the main cross beams and the main longitudinal beams, the backrest frame is detachably connected to the rear side of the sofa seat frame, a cushion bag is arranged on the top side of the spring frame, and a backrest bag is arranged on the inner side of the backrest frame. The multifunctional sofa is reasonable in structure, the cushion bag, the backrest bag, the sofa seat frame, the spring frame and the sofa back frame are assembled in a modularized mode, convenience and rapidness are achieved, the sofa seat frame and the sofa back frame can be folded and disassembled according to needs, storage and transportation are convenient, occupied storage and transportation space is reduced, and assembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a foldable and decomposable sofa frame and a sofa. Background Art

[0002] With the accelerating pace of modern life and increasingly compact living spaces, furniture versatility has become a key focus for consumers. Traditional sofa designs often limit the design to separate the cushions from the frame, while the frame is often integrated. This results in the frame taking up a large amount of space during storage and transportation, resulting in reduced transportation volume and increased transportation costs. This is particularly true for sofas intended for export, as container shipping has a strict tiered price schedule, making the integrated frame even more expensive.

[0003] In order to solve the above problems, the market urgently needs an innovatively designed sofa frame that can be disassembled or folded according to storage and transportation needs, and must ensure stability and durability in structural design, and pursue comfort and environmental protection in material selection, so as to enhance the user experience and quality of life. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a foldable and decomposable sofa frame and a sofa.

[0005] A foldable and decomposable sofa frame comprises a sofa seat frame and a spring frame. The sofa seat frame comprises two main cross beams, two main longitudinal beams and a plurality of supporting legs. An L-shaped connector is fixed on the top of each supporting leg.

[0006] The main cross beam and the main longitudinal beam are vertically connected, and the butt end is rotatably connected to the L-shaped connector on the top of the corresponding support leg, and the main cross beam and the main longitudinal beam can achieve a 90° turn;

[0007] The spring frame includes a frame plate covering the frame composed of the main cross beam and the main longitudinal beam, a plurality of springs are provided in the middle position of the frame plate, and a limiting rod is provided on the bottom side of the frame plate, which is located between the two main cross beams and parallel to the main longitudinal beams.

[0008] Furthermore, it also includes a sofa back frame, which includes a main straight beam parallel to the main crossbeam, and both ends of the main straight beam are connected to curved support rods through C-shaped connectors. The ends of the main straight beam are rotatably connected to the corresponding C-shaped connectors, and the top ends of the curved support rods are fixedly connected to the C-shaped connectors. The curved support rods can be detachably connected to the support legs on the rear side of the sofa seat frame.

[0009] Furthermore, the main crossbeam includes a plurality of sub-crossbeams in a straight line, each main longitudinal beam includes two sub-longitudinal beams in a straight line, and a support leg with a straight-line connector fixed on the top is provided between adjacent sub-crossbeams in a straight line, the straight-line connector is rotatably connected to the sub-crossbeam, and the straight-line connector is provided with a placement groove near the inner side of the sofa seat frame;

[0010] A support leg with a straight-line connector fixed on the top is also provided between adjacent sub-longitudinal beams on a straight line. The straight-line connector is rotatably connected to the sub-longitudinal beam, and the end of the sub-longitudinal beam away from the straight-line connector can be inserted into the placement slot.

[0011] Furthermore, the main straight beam includes several sub-straight beams on a straight line, and a curved support rod with a straight-line connector fixed on the top is provided between adjacent sub-straight beams on a straight line. The curved support rod can be detachably connected to the corresponding support leg on the rear side of the sofa seat frame.

[0012] Furthermore, a spring rack is provided between two adjacent main longitudinal beams.

[0013] Furthermore, an L-shaped accessory is disposed inside the L-shaped connector.

[0014] A sofa with the above-mentioned foldable and decomposable sofa frame, wherein a seat cushion bag is provided on the top side of the sofa seat frame, a sofa cover is provided on the upper side of the sofa back frame, and a backrest bag is provided on the side of the sofa cover close to the sofa seat frame.

[0015] Advantages of the utility model: the utility model has a reasonable structure, and the cushion bag, backrest bag, sofa seat frame, spring frame, and sofa back frame are modularly assembled, which is convenient and quick, and the sofa seat frame and sofa back frame can be folded and disassembled as needed, which is convenient for storage and transportation, reduces the space occupied by storage and transportation, and is also convenient for assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a first embodiment of a sofa frame of the present invention;

[0017] Figure 2 yes Figure 1 The first type of sofa frame and cushion combination diagram shown;

[0018] Figure 3 It is a schematic diagram of a second embodiment of a sofa frame of the present invention;

[0019] Figure 4 yes Figure 3 The second type of sofa frame and cushion combination diagram shown;

[0020] Figure 5 This is a schematic diagram of a third embodiment of a sofa frame of the present invention;

[0021] Figure 6 yes Figure 5 The third type of sofa frame and cushion combination diagram shown;

[0022] Figure 7 It is a schematic diagram of a fourth embodiment of a sofa frame of the present invention;

[0023] Figure 8 yes Figure 7 The fourth type of sofa frame and cushion combination diagram shown;

[0024] Figure 9 This is an exploded schematic diagram of the main crossbeam, main longitudinal beam, L-shaped connector, and L-shaped accessories of the utility model;

[0025] Figure 10 This is an exploded schematic diagram of the curved support rod, main straight beam and C-shaped connecting member of the utility model;

[0026] Figure 11 This is an exploded schematic diagram of two sub-crossbeams, one sub-longitudinal beam and a straight-line connector of the utility model;

[0027] Figure 12 yes Figure 1 、 Figure 3 Schematic diagram of the folding of the middle main beam and the supporting legs at both ends;

[0028] Figure 13 yes Figure 5 、 Figure 7 Schematic diagram of the folding of the two sub-beams and three supporting legs;

[0029] Figure 14 yes Figure 5 、 Figure 7 Schematic diagram of the folding of the two middle longitudinal beams and the middle supporting leg;

[0030] Figure 15 yes Figure 3 Schematic diagram of the folding of a main straight beam and two curved support rods;

[0031] Figure 16 yes Figure 7 Schematic diagram of the folding of the two straight beams and three curved support rods.

[0032] As shown in the figure: 1. Main crossbeam; 2. Main longitudinal beam; 3. Support leg; 4. L-shaped connector; 5. Frame plate; 6. Spring; 7. Limit rod; 8. Main straight beam; 9. C-shaped connector; 10. Curved support rod; 11. I-shaped connector; 12. Placement slot; 13. L-shaped accessory; 14. Clearance gap; 15. Cushion bag; 16. Sofa cover; 17. Backrest bag; 101. Sub-crossbeam; 201. Sub-longitudinal beam; 801. Sub-straight beam. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0035] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected" or "installed" on another feature, it can be directly set, fixed or connected on the other feature, or it can be indirectly set, fixed, connected or installed on the other feature.

[0036] In the description of the embodiments of this utility model, if the word "several" is mentioned, it means more than one; if the word "plurality" is mentioned, it means more than two; if the word "greater than," "less than," or "exceeds," it should be understood as excluding the number itself; if the word "above," "below," or "within" is mentioned, it should be understood as including the number itself. If the word "first" or "second" is mentioned, it should be understood as distinguishing technical features and should not be understood as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0037] The present invention will be described in further detail below with reference to the accompanying drawings.

[0038] A foldable and decomposable sofa frame includes a sofa seat frame and a spring frame. The sofa seat frame includes two main cross beams 1, two main longitudinal beams 2 and a plurality of support legs 3. An L-shaped connector 4 is fixed on the top of each support leg 3.

[0039] The main cross beam 1 and the main longitudinal beam 2 are vertically connected, and the butt ends are rotatably connected to the L-shaped connector 4 on the top of the corresponding support leg 3, so that the main cross beam 1 and the main longitudinal beam 2 can achieve a 90° turn;

[0040] The spring frame includes a frame plate 5 covering the frame composed of the main cross beam 1 and the main longitudinal beam 2. A plurality of springs 6 are provided in the middle position of the frame plate 5. A limiting rod 7 is provided on the bottom side of the frame plate 5 and is located between the two main cross beams 1 and parallel to the main longitudinal beam 2.

[0041] It also includes a sofa back frame, which includes a main straight beam 8 parallel to the main crossbeam 1, and both ends of the main straight beam 8 are connected to a curved support rod 10 through a C-shaped connector 9. The end of the main straight beam 8 is rotatably connected to the corresponding C-shaped connector 9, and the top of the curved support rod 10 is fixedly connected to the C-shaped connector 9. The curved support rod 10 can be detachably connected to the support leg 3 on the rear side of the sofa seat frame.

[0042] The main crossbeam 1 includes a plurality of sub-crossbeams 101 in a straight line, and each main longitudinal beam 2 includes two sub-longitudinal beams 201 in a straight line. A support leg 3 with a straight-line connector 11 fixed on the top is provided between adjacent sub-crossbeams 101 in a straight line. The straight-line connector 11 is rotatably connected to the sub-crossbeams 101, and the straight-line connector 11 is provided with a placement groove 12 near the inner side of the sofa seat frame.

[0043] A support leg 3 with a straight-line connector 11 fixed on the top is also provided between adjacent sub-longitudinal beams 201 on a straight line. The straight-line connector 11 is rotatably connected to the sub-longitudinal beam 201 at this position, and the end of the sub-longitudinal beam 201 away from the straight-line connector 11 at this position can be inserted into the placement slot 12.

[0044] The main straight beam 8 includes several sub-straight beams 801 on a straight line. A curved support rod 10 with a straight-line connector 11 fixed on the top is provided between adjacent sub-straight beams 801 on a straight line. At this position, the curved support rod 10 can be disassembled and connected to the corresponding support leg 3 on the rear side of the sofa seat frame.

[0045] A spring bracket is provided between two adjacent main longitudinal beams 2 .

[0046] An L-shaped fitting 13 is disposed inside the L-shaped connector 4 .

[0047] Both ends of the main crossbeam 1, main longitudinal beam 2, main straight beam 8, sub-crossbeam 101, sub-longitudinal beam 201 and sub-straight beam 801 are provided with a clearance gap 14, the size of which is set according to actual needs, and the main purpose is to make way when rotating and folding.

[0048] A sofa with a foldable and decomposable sofa frame, wherein a seat cushion bag 15 is provided on the top side of the sofa seat frame, a sofa cover 16 is provided on the sofa back frame, and a backrest bag 17 is provided on the sofa cover 16 near the sofa seat frame.

[0049] Example 1, sofa 1

[0050] like Figure 1 and 2 As shown, sofa 1 includes a sofa seat frame and a spring frame;

[0051] The sofa seat frame includes two main cross beams 1, two main longitudinal beams 2 and four supporting legs 3. An L-shaped connector 4 is fixed to the top of each supporting leg 3;

[0052] The main cross beam 1 and the main longitudinal beam 2 are vertically connected, and the butt ends are rotatably connected to the L-shaped connector 4 on the top of the corresponding support leg 3, so that the main cross beam 1 and the main longitudinal beam 2 can achieve a 90° turn;

[0053] The L-shaped connector 4 is provided with an L-shaped fitting 13 on the inner side. The L-shaped connector 4 and the L-shaped fitting 13 are connected to the main crossbeam 1 and the main longitudinal beam 2 by means of a screw-nut assembly. When the screw-nut is loosened, the main crossbeam 1 and the main longitudinal beam 2 can rotate. When the screw-nut is loosened or tightened, the main crossbeam 1 and the main longitudinal beam 2 do not rotate.

[0054] The spring frame includes a frame plate 5 covering the frame formed by the main cross beam 1 and the main longitudinal beam 2. A plurality of springs 6 are provided in the middle of the frame plate 5. A limit rod 7 is provided on the bottom side of the frame plate 5 and is located between the two main cross beams 1 and parallel to the main longitudinal beams 2.

[0055] A cushion bag 15 is provided on the top side of the spring frame, and a sofa fabric can be covered on the frame plate 5 of the spring frame. The cushion bag 15 and the sofa fabric of the frame plate 5 can be connected by Velcro;

[0056] The sofa seat frame of this embodiment can be used as follows Figure 12 In the folding variation shown, the support legs 3 at both ends of the main crossbeam 1 can be folded together with the main longitudinal beam 2 to the lower side of the main crossbeam 3 to facilitate subsequent storage and transportation.

[0057] Example 2, sofa with sofa back

[0058] like Figure 3 and 4 As shown, based on Example 1, a sofa back frame is provided on the rear side of the sofa 1, and the sofa back frame includes a main straight beam 8, and both ends of the main straight beam 8 are connected to a curved support rod 10 through a C-shaped connector 9. The curved support rod 10 is installed on the support leg 3 on the rear side of the sofa 1 through a screw and nut assembly. A sofa cover 16 is provided on the sofa back frame, and a backrest bag 17 is provided on the side of the sofa cover 16 near the sofa seat frame. The sofa cover 16 and the backrest bag 17 can be connected by Velcro;

[0059] The sofa back frame of this embodiment can be Figure 15 In the folding shown, the curved support rods 10 at both ends of the main straight beam 8 are folded at the C-shaped connecting piece.

[0060] Example 3, Sofa 2

[0061] like Figure 5 and 6 As shown, based on Example 1, the main crossbeam 1 is composed of two sub-main beams 101. The two sub-main beams 101 are connected at the butt joint by a straight-line connector 11. The bottom side of the straight-line connector 11 is fixedly connected to the support leg 3. The straight-line connector 11 is connected to the two sub-main beams 101 by a screw and nut assembly. The two sub-main beams 101 and the middle support leg 3 can be as follows Figure 13 As shown in the folding, the folding angle of the sub-main beam 101 cannot reach 90° because there are two supporting legs 3 at the bottom end;

[0062] The main longitudinal beam 2 is composed of two sub-longitudinal beams 201. The two sub-longitudinal beams 201 are connected at the butt joint by a straight-line connector 11. The bottom side of the straight-line connector 11 is fixedly connected to the support leg 3. The straight-line connector 11 is connected to the two sub-longitudinal beams 201 by a screw and nut assembly. The two sub-longitudinal beams 201 and the middle support leg 3 can be connected as follows. Figure 14 As shown in the folding, the end of the outer sub-longitudinal beam 201 away from the I-shaped connector 11 is connected to the corresponding L-shaped connector 4, and the end of the inner sub-longitudinal beam 201 away from the I-shaped connector 11 is placed in the placement groove 12, and a screw and nut assembly can also be provided between the sub-longitudinal beam 201 and the placement groove 12;

[0063] This embodiment forms a location where two spring racks can be placed and is provided with two cushion bags 17 .

[0064] Example 4, sofa with sofa back frame

[0065] like Figure 7 and 8 As shown, on the basis of Example 3, a sofa back frame is set on the back side of the sofa 2, and the sofa back frame includes two sub-straight beams 801, and a curved support rod 10 with a straight connector 11 fixed on the top is provided between the two sub-straight beams 801. The sub-straight beams 801 and the straight connector 11 are connected by a screw and nut assembly. One end of each sub-straight beam 801 away from the straight connector 11 is connected to the C-shaped connector 9 by a screw and nut assembly. The bottom side of the C-shaped connector 9 is fixed with a curved support rod 10. The three curved support rods 10 are connected to the three support legs 3 on the back side of the sofa 2 by a screw and nut assembly.

[0066] A sofa cover 16 is provided on the sofa back frame, and a backrest bag 17 is provided on the side of the sofa cover 16 close to the sofa seat frame. The sofa cover 16 and the backrest bag 17 can be connected by Velcro;

[0067] The sofa back frame of this embodiment can be Figure 16 In the folding shown, the two sub-straight beams 801 and the three curved support rods 10 are folded under the action of the C-shaped connector and the I-shaped connector 11.

[0068] Through the above embodiments of the present invention, it can be known that the structure of the present invention can realize the lengthening change of the sofa seat frame and the sofa back frame, has strong expandability, and the sofa seat frame and the sofa back frame can be disassembled and folded as needed, which is convenient for storage, transportation and assembly.

[0069] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0070] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A foldable and decomposable sofa frame, characterized by: The sofa seat frame comprises a sofa seat frame and a spring frame, wherein the sofa seat frame comprises two main cross beams (1), two main longitudinal beams (2) and a plurality of supporting legs (3), and an L-shaped connecting piece (4) is fixed to the top of each supporting leg (3). The main cross beam (1) and the main longitudinal beam (2) are vertically connected, and the butted ends are rotatably connected to the L-shaped connecting pieces (4) on the tops of the corresponding support legs (3), so that the main cross beam (1) and the main longitudinal beam (2) can achieve a 90° turn; The spring frame comprises a frame plate (5) covering a frame formed by a main cross beam (1) and a main longitudinal beam (2); a plurality of springs (6) are provided in the middle of the frame plate (5); and a limiting rod (7) is provided on the bottom side of the frame plate (5) and is arranged between the two main cross beams (1) and parallel to the main longitudinal beam (2); The sofa back frame also includes a sofa back frame, the sofa back frame includes a main straight beam (8) parallel to the main cross beam (1), both ends of the main straight beam (8) are connected to a curved support rod (10) via a C-shaped connecting piece (9), the end of the main straight beam (8) is rotatably connected to the corresponding C-shaped connecting piece (9), the top end of the curved support rod (10) is fixedly connected to the C-shaped connecting piece (9), and the curved support rod (10) can be detachably connected to the support leg (3) at the rear side of the sofa seat frame; The main crossbeam (1) includes a plurality of sub-crossbeams (101) on a straight line, each main longitudinal beam (2) includes two sub-longitudinal beams (201) on a straight line, and a support leg (3) with a straight-line connecting piece (11) fixed on the top is provided between adjacent sub-crossbeams (101) on a straight line, the straight-line connecting piece (11) is rotatably connected to the sub-crossbeams (101), and the straight-line connecting piece (11) is provided with a placement groove (12) near the inner side of the sofa seat frame; A support leg (3) with a straight-lined connecting piece (11) fixed on the top is also provided between adjacent sub-longitudinal beams (201). The straight-lined connecting piece (11) is rotatably connected to the sub-longitudinal beam (201) at this position, and an end of the sub-longitudinal beam (201) away from the straight-lined connecting piece (11) at this position can be inserted into the placement groove (12).

2. The foldable and decomposable sofa frame according to claim 1, characterized in that: The main straight beam (8) includes a plurality of sub-straight beams (801) on a straight line. A curved support rod (10) with a straight-line connector (11) fixed on the top is provided between adjacent sub-straight beams (801) on the straight line. The curved support rod (10) at this position can be detachably connected to the corresponding support leg (3) on the rear side of the sofa seat frame.

3. The foldable and decomposable sofa frame according to claim 1, characterized in that: A spring frame is provided between two adjacent main longitudinal beams (2).

4. The foldable and decomposable sofa frame according to claim 1, characterized in that: An L-shaped fitting (13) is arranged inside the L-shaped connecting piece (4).

5. A sofa having a foldable and decomposable sofa frame according to any one of claims 1 to 4, characterized in that: A cushion bag (15) is provided on the top side of the sofa seat frame, a sofa cover (16) is provided on the sofa back frame, and a backrest bag (17) is provided on the side of the sofa cover (16) close to the sofa seat frame.

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