Modular sofa structure and combined sofa

Abstract

The utility model relates to the technical field of furniture, and discloses a modularized sofa structure which comprises a seat frame and at least one armrest piece, the armrest piece is arranged on any side surface of the seat frame, and the upper end of the armrest piece exceeds the top surface of the seat frame by a preset distance; a first connecting piece is arranged between the inner side face of the supporting piece and the top face of the seat frame, one end of the first connecting piece is connected with the side face of the supporting piece through a first component, and the other end of the first connecting piece is connected with the top face of the seat frame in an inserted mode through a second component. A second connecting piece is arranged between the lower end of the armrest piece and the lower end of the seat frame, and the two ends of the second connecting piece are detachably connected with the armrest piece and the seat frame through third components respectively. The utility model has the beneficial effects of convenient transportation, convenient assembly, and flexible assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a modular sofa structure and a combined sofa. Background Art

[0002] A sofa generally refers to a cushioned chair or a multi-seat chair. There are many types of sofas, including single-seat, double-seat, multi-seat, and multiple-seat sofas, with multiple combinations such as straight-line, L-shaped, and U-shaped. However, existing sofas are inconvenient to transport and assemble, and cannot be installed in a modular manner. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a modular sofa structure and a combined sofa which are convenient to transport and to assemble and disassemble.

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

[0005] A modular sofa structure comprises a seat frame and at least one support member, wherein the support member is arranged on any side surface of the seat frame, and the upper end of the support member exceeds the top surface of the seat frame by a preset distance; a first connecting member is provided between the inner side surface of the support member and the top surface of the seat frame, one end of the first connecting member is connected to the side surface of the support member through a first component, and the other end of the first connecting member is plug-connected to the top surface of the seat frame through a second component; a second connecting member is provided between the lower end of the support member and the lower end of the seat frame, and the two ends of the second connecting member are detachably connected to the support member and the seat frame through a third component.

[0006] By adopting the above technical solution, the support member can be used as both a backrest and an armrest, thereby optimizing the three components of the sofa, namely the seat frame, the armrest and the backrest, into two components, namely the seat frame and the support member, thereby making the combination of the sofa more flexible and maneuverable; the support member and the seat frame are connected by a first connecting member and a second connecting member, and one end of the first connecting member is plugged into the seat frame, so installation and disassembly are very convenient; during the transportation of the sofa, the support member and the seat frame are separated and stacked together for transportation, thereby reducing the transportation volume.

[0007] Preferably, the first component is configured as a bolt, the first connecting member is provided with a first connecting through hole through which the bolt can pass, and the inner side surface of the supporting member is preset with a first connecting hole or a first hole position mark that matches the bolt; the bolt passes through the first connecting through hole and is fastened to the first connecting hole on the supporting member. The bolt passes through the first connecting through hole and is connected to the first connecting hole, or the bolt is a screw, in which case it is only necessary to set a first hole position mark on the supporting member, and the screw can be aligned with the first hole position mark and then driven into the supporting member to achieve quick connection; at the same time, disassembly is also very convenient.

[0008] Preferably, the first component is configured as a stud and a nut threadedly connected to the stud, the first connecting member is provided with a first connecting through hole, the support member is provided with a first connecting hole, one end of the stud extends into the first connecting hole and is fastened to the support member, and the other end of the stud passes through the first connecting through hole and is locked by the nut.

[0009] Preferably, the first connecting member includes a vertical connecting part and a horizontal connecting part which are perpendicular to each other, the first connecting through hole is arranged on the vertical connecting part; the second member is fixed on the lower side of the horizontal connecting part. After the vertical connecting part is connected with the supporting member, the second member is inserted into the top surface of the seat frame, so that the installation is more convenient and stable.

[0010] Preferably, the second member is configured as a plug, which is vertically fixed on the lower side of the horizontal connection part, and the top surface of the seat frame is preset with a socket adapted to the plug, and the plug is inserted into the socket from top to bottom to form the plug connection. The plug and the socket are plugged together, and installation and removal are very convenient.

[0011] Preferably, the first connecting through hole and the second member are both located at the lower side of the horizontal connecting part. During installation, the horizontal connecting part is located at the upper end of the vertical connecting part, so that after the first member connects the first connecting part with the support member, the tail end of the first member is completely covered by the first connecting part, and the upper side of the horizontal connecting part faces upward and is smooth, thereby effectively preventing the tail end of the first member from being exposed and causing contact and friction with the sofa cushion to cause damage, and also preventing the human hand from being inserted into the position between the support member and the seat frame and being scratched by the tail end of the first member.

[0012] Preferably, the second connecting member is a sheet-like structure, and both ends of the second connecting member are provided with second connecting through holes, and the third member is configured as any one of bolts, screws, and studs; the bottom of the support member and the bottom of the seat frame are both preset with second connecting holes or second hole position marks that are compatible with the third member. Bolts and screws are very convenient to connect and disassemble.

[0013] Preferably, the bottom of the seat frame and the bottom of the support member are both preset with a plurality of third connection holes, and the third connection holes are both provided with support feet, and the support feet are detachably connected to the third connection holes. The support feet support the seat frame and the support member, so that a preset distance is formed between the bottom of the seat frame and the ground, and the height can be fine-tuned to meet assembly requirements.

[0014] Preferably, the thickness of the lower end of the inner side surface of the support member is greater than the thickness of the upper end, so that an upward step surface is formed on the inner side surface of the support member, the step surface is flush with the top surface of the seat frame, and the bottom surface of the support member is flush with the bottom surface of the seat frame. Since a cushion needs to be installed on the seat frame, the edge of the cushion is on the step surface, so that the gap between the support member and the seat frame is completely covered by the cushion, which can prevent hands from being injured by reaching into the gap on the one hand, and prevent debris from falling into the bottom of the sofa through the gap on the other hand.

[0015] A modular sofa comprises at least two seat frames and several support members, wherein the seat frames are rectangular parallelepiped structures, the sides of two adjacent seat frames are butted, and the top edges of two adjacent seat frames are connected by a third connecting member; the support members are arranged on any outer side of the seat frames, and the support members are connected to the seat frames by the first connecting member and the second connecting member; the support members can be configured as armrests and / or backrests. By configuring more than two seat frames, the seat frames are connected by a third connecting member, thereby expanding to form a modular sofa, and the corresponding number of seat frames and support members can be selected according to the actual scene requirements, and the combination is very flexible.

[0016] Preferably, both ends of the third connector are fixed with plug rods on the same side, and the plug rods are plug-connected with the sockets on the adjacent seat frames. The third connector uses the sockets on the seat frames to achieve detachable connection between the seat frames, so that the production and installation of the modular sofa are also very convenient.

[0017] Preferably, the length of the long side of the seat frame is set to L1, the length of the short side of the seat frame is set to L2, and the long sides of two adjacent seat frames are assembled by butting against each other or by butting against each other; the length of the support member is set to S1, the width of the support member is set to S2, and the gap between the support member and the seat frame after being connected is K; wherein, L1=S1, L2+S2+K=L2. When the support member is installed with the long side of the seat frame, both ends of the support member are aligned with the seat frame, and when the support member is connected with the short side of the seat frame, one end of the support member is aligned with the side of the seat frame. This method can expand the convenience and aesthetics of the combination.

[0018] Therefore, the utility model has the beneficial effects of convenient transportation and convenient assembly and disassembly; at the same time, it can also be expanded and combined into various modular sofas in different forms according to actual scene requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of Example 1.

[0020] Figure 2 for Figure 1 Another perspective of the picture.

[0021] Figure 3 It is a schematic diagram of a first connection between the support member and the first connecting member.

[0022] Figure 4 It is a schematic diagram of the second connection between the support member and the first connecting member.

[0023] Figure 5 This is a schematic diagram of the third connection between the support member and the first connecting member.

[0024] Figure 6 It is a schematic diagram of the connection between the second connecting member, the support member and the seat frame.

[0025] Figure 7 for Figure 1 Left view of .

[0026] Figure 8 It is a schematic diagram of the stacking state after the support member and the seat frame are separated.

[0027] Fig. 9 This is a schematic diagram of the structure of Example 2.

[0028] Fig.10 for Fig. 9 Top view of the .

[0029] Fig.11 This is a schematic diagram of the structure of Example 3.

[0030] Fig.12 for Fig.11 Another perspective of the picture.

[0031] Fig.13 This is a schematic diagram of the structure of Example 4.

[0032] Fig.14 It is a schematic structural diagram of the third connecting member.

[0033] Fig.15 This is a schematic diagram of the structure of Example 5.

[0034] Fig.16 This is a schematic diagram of the structure of Example 6.

[0035] Fig.17 This is a schematic diagram of the structure of Example 7.

[0036] Fig.18 This is a schematic diagram of the structure of Example 8.

[0037] Fig.19 This is a schematic diagram of the structure of Example 9.

[0038] Fig. 20 This is a schematic structural diagram of Example 10.

[0039] Fig.21This is a schematic diagram of the structure of Example 11.

[0040] Fig. 22 This is a schematic diagram of the structure of Example 12.

[0041] Fig.23 This is a schematic diagram of the structure of Example 13. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0043] It should be understood that, in this document, the expressions "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0044] Embodiment 1:

[0045] like Figure 1-Figure 7 A modular sofa structure shown in the figure includes a seat frame 10 and a backrest member 20, wherein the backrest member 20 is arranged on any side surface of the seat frame 10, and the upper end of the backrest member 20 exceeds the top surface of the seat frame 10 by a preset distance; a first connecting member 30 is arranged between the inner side surface of the backrest member 20 and the top surface of the seat frame 10, one end of the first connecting member 30 is connected to the side surface of the backrest member 20 through a first component 31, and the other end of the first connecting member 30 is plug-connected to the top surface of the seat frame 10 through a second component 32; a second connecting member 40 is arranged between the lower end of the backrest member 20 and the lower end of the seat frame 10, and the two ends of the second connecting member 40 are detachably connected to the backrest member 20 and the seat frame 10 through a third component 41 respectively.

[0046] The first connecting member 30 includes a vertical connecting portion 300 and a horizontal connecting portion 301 which are arranged perpendicular to each other. The vertical connecting portion 300 is connected to the supporting member 20 through the first member 31 and is fixed to the lower side of the horizontal connecting portion 301 through the second member 32. Figure 3 As shown, the first component 31 is configured as a bolt 310, and a first connecting through hole 302 that can be passed by the bolt 310 is provided on the vertical connecting portion 300 of the first connecting member 30, and the inner side surface of the support member 20 is preset with a first connecting hole 21 or a first hole position mark that is compatible with the bolt 310; the bolt 310 passes through the first connecting through hole 302 and is fastened to the first connecting hole 21 on the support member 20; if the bolt 310 is a screw, the screw passes through the first connecting through hole 302 and then strikes into the first hole position mark.

[0047] like Figure 4 The figure shows another embodiment of the first component 31, specifically: the first component 31 is configured as a stud 311 and a nut 312 threadedly connected to the stud 311, a first connecting through hole 302 is provided on the first connecting member 30, a first connecting hole 21 is provided on the support member 20, the first connecting hole 21 is configured as a threaded hole or a threaded bushing is preset in the first connecting hole 21, one end of the stud 311 is connected to the first connecting hole 21 (or the threaded bushing), and one end of the stud 311 passes through the first connecting through hole 302 and is locked by the nut 312.

[0048] like Figure 5 The figure shows another embodiment of the first component 31. Specifically, the first component 31 is configured as a three-in-one connector 313, which includes a screw 3130, an eccentric wheel 3131, and a nut 312. One end of the screw 3130 passes through the first connecting through hole 302 and is locked by the nut. The other end of the screw 3130 is provided with a limiting convex ring. Usually, a mounting hole for installing the eccentric wheel 3131 is provided on the inner end side of the first connecting hole 21. The eccentric wheel 3131 is placed in the mounting hole, and the end of the screw 3130 with the limiting convex ring is inserted into the first connecting hole 21 and into the notch on the side of the eccentric wheel 3131. The eccentric wheel 3131 is rotated to tighten the screw 3130, thereby realizing the connection between the first connecting component 30 and the support member 20.

[0049] In some embodiments, the first connection through hole 302 is configured as a slot, so that when installing the first connection member 30, the installation height of the first connection member 30 can be finely adjusted. In order to further improve the connection reliability, in some embodiments, the number of the first connection through holes 302 is set to two or more.

[0050] The second member 32 is configured as a latch 320, which is vertically fixed on the lower side of the horizontal connection portion 301. The top surface of the seat frame 10 is preset with a socket 11 adapted to the latch. After the first connection member 30 is connected to the support member 20, the latch is inserted from top to bottom into the socket 11 on the top surface of the seat frame 10 to form a plug connection. In order to improve the connection stability between the second member 32 and the seat frame 10, two latches are configured in some embodiments.

[0051] like Figure 6As shown, the second connecting member 40 is a sheet-like structure, and the second connecting through holes 400 are provided at both ends of the second connecting member 40. The third member 41 is configured as any one of a bolt, a screw, and a stud. The bottom of the support member 20 and the bottom of the seat frame 10 are both preset with a second connecting hole 22 or a second hole position mark that matches the third member 41. When the third member 41 is configured as a bolt, the second connecting hole 22 is configured as a threaded hole (or a threaded bushing is provided in the second connecting hole 22), and the bolt directly passes through the second connecting through hole 400 and is fastened to the second connecting hole 22 or the threaded bushing; when the third member 41 is configured as a screw, the second hole position mark is directly preset at the bottom of the support member 20 and the bottom of the seat frame 10, and the screw is automatically tapped into the second hole position mark; when the third member 41 is configured as a stud, one end of the stud is connected to the second connecting hole 22, and the other end of the stud passes through the second connecting through hole 400 and is locked with a nut.

[0052] In some embodiments, the first connecting through hole 302 and the second member 32 are both located at the lower side of the horizontal connecting portion 301; the thickness of the lower end of the inner side surface of the support member 20 is greater than the thickness of the upper end, so that an upward step surface 200 is formed on the inner side surface of the support member 20, and the step surface 200 is flush with the top surface of the seat frame 10, and the bottom surface of the support member 20 is flush with the bottom surface of the seat frame 10. Figure 7 As shown in the figure, the dotted line shows the state where the seat cushion 70 is placed on the seat frame 10. The presence of the step surface 200 allows the edge of the seat cushion 70 to extend to the step surface 200, so that the edge of the seat cushion 70 completely blocks the gap between the seat frame 10 and the support member 20, preventing the user from inserting their hands into the gap and causing injuries, and also preventing debris from falling into the gap, thereby improving the safety of use. At the same time, because the first connecting through hole 302 is located at the lower side of the horizontal connecting portion 301,

[0053] The first component 31 is completely isolated from the seat cushion 70 , and no contact or friction occurs between the two, thereby protecting the seat cushion 70 .

[0054] A plurality of third connection holes 12 are preset at the bottom of the seat frame 10 and the bottom of the support member 20 . Support legs 50 are provided at the third connection holes 12 . The support legs 50 are detachably connected to the third connection holes 12 .

[0055] Embodiment 2:

[0056] like Fig. 9 and Fig.10As shown, a seat frame 10 is equipped with two support members 20, and the two support members 20 are arranged on two adjacent side surfaces of the seat frame 10, one support member 20 is used as an armrest, and the other support member 20 is used as a backrest. The length of the long side of the seat frame 10 is set to L1, and the length of the short side of the seat frame 10 is set to L2; the length of the support member 20 is set to S1, the width of the support member 20 is set to S2, and the gap between the support member 20 and the seat frame 10 after connection is K; wherein, L1=S1, L2+S2+K=L2, so that after the two support members 20 are connected to a seat frame 10, the overall projection on the ground is a rectangle, which is more beautiful as a whole, and also makes the subsequent seat frame 10 combination more flexible.

[0057] There are two groups of insertion holes 11 on the short side of the seat frame 10. No matter which group of insertion holes 11 the latch 320 on the first connector 30 is matched with, one end of the support member 20 will be flush with one side surface of the seat frame.

[0058] Embodiment 3:

[0059] like Fig.11 and Fig.12 As shown, a seat frame 10 is configured with three support members 20, one of which is arranged on the side where the long side of the seat frame 10 is located to form a backrest, and the other two support members 20 are arranged on the side where the short side of the seat frame 10 is located to form two armrests.

[0060] Embodiment 4:

[0061] like Fig.13 and Fig.14 A combination sofa shown in the figure includes two seat frames 10 and a support member 20. The seat frames 10 are of a rectangular structure. The side surfaces of two adjacent seat frames 10 are butted against each other, and the top edges of the two adjacent seat frames 10 are connected by a third connecting member 60. The support member 20 is arranged on any outer side surface of the seat frame 10. The support member 20 and the seat frame 10 are connected by a first connecting member 30 and a second connecting member 40. The support member 20 can be configured as an armrest and / or a backrest. When the support member 20 is connected to the long side of the seat frame 10, it serves as a backrest, and when the support member 20 is connected to the short side of the seat frame 10, it serves as an armrest. Insertion rods 61 are fixedly provided on the same side of both ends of the third connecting member 60, and the insertion rods 61 are plug-connected to the insertion holes 11 on the adjacent seat frames 10.

[0062] Embodiment 5:

[0063] like Fig.15As shown, two seat frames 10 are configured, two support members 20 are configured, the two support members 20 are installed on two adjacent sides of the same seat frame 10, the length of the long side of the seat frame 10 is set to L1, the length of the short side of the seat frame 10 is set to L2, the long sides of the two adjacent seat frames 10 are butt-jointed and assembled with the long sides or the short sides are butt-jointed and assembled with the short sides; the length of the support member 20 is set to S1, the width of the support member 20 is set to S2, and the gap after the support member 20 is connected to the seat frame 10 is K; wherein, L1=S1, L2+S2+K=L2.

[0064] Embodiment 6:

[0065] like Fig.16 As shown, two seat frames 10 are configured, and two support members 20 are configured. The difference from Example 5 is that the support members 20 are arranged side by side at the long sides of the same side of the two seat frames 10. As shown in 16, the combination sofa is formed by combining two sofas in Example 1.

[0066] like Fig.17 In the embodiment 7 shown, a support member 20 is added on the basis of the embodiment 5 or the embodiment 6. The sofa in the embodiment 1 can be directly combined with the sofa in the embodiment 2.

[0067] like Fig.18 In the embodiment 8 shown, a support member 20 is added on the basis of the embodiment 7; the sofa can be directly assembled by combining two sets of sofas in the embodiment 2.

[0068] Fig.19 In the shown embodiment 9, three seat frames 10 are provided and five support members 20 are provided, and the sofas in two groups of embodiment 2 and one group of embodiment 1 can be directly combined to form the sofas.

[0069] Fig. 20 In the illustrated embodiment 10, three seat frames 10 are provided and two support members 20 are provided, and the sofa in the embodiment 6 can be combined with one seat frame 10.

[0070] Fig.21 In the illustrated embodiment 11, four seat frames 10 are provided and two support members 20 are provided, and the sofa of embodiment 10 can be obtained by adding one seat frame 10.

[0071] Fig. 22 In the illustrated embodiment 12, four seat frames 10 are provided, and four support members 20 are provided, so that the two sets of sofas in the embodiment 5 can be combined.

[0072] Fig.23 In the illustrated embodiment 13, five seat frames 10 are provided and seven support members 20 are provided, so that the sofas in the embodiments 1, 5 and 8 can be combined.

[0073] The above embodiments only show some of the combination methods. In the above embodiments, the seat frame 10 and the support member 20 are used as basic modules, different numbers of basic modules are selected, and the basic modules are assembled according to preset rules using the first connecting member 30, the second connecting member 40, and the third connecting member 60, so that various different combination methods can be formed to adapt to various scene requirements. The overall assembly is convenient and flexible.

[0074] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0075] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A modular sofa structure, characterized in that: It comprises a seat frame (10) and at least one support member (20), wherein the support member (20) is arranged on any side surface of the seat frame (10), and the upper end of the support member (20) protrudes from the top surface of the seat frame (10) by a preset distance; A first connecting member (30) is provided between the inner side surface of the support member (20) and the top surface of the seat frame (10); one end of the first connecting member (30) is connected to the side surface of the support member (20) via a first component (31); and the other end of the first connecting member (30) is plug-connected to the top surface of the seat frame (10) via a second component (32); A second connecting member (40) is provided between the lower end of the support member (20) and the lower end of the seat frame (10), and both ends of the second connecting member (40) are detachably connected to the support member (20) and the seat frame (10) via third components (41).

2. A modular sofa structure according to claim 1, characterized in that: The first component (31) is configured as a bolt (310); the first connecting member (30) is provided with a first connecting through hole (302) through which the bolt (310) can pass; the inner side surface of the support member (20) is preset with a first connecting hole (21) or a first hole position mark that matches the bolt; the bolt (310) passes through the first connecting through hole (302) and is fastened to the first connecting hole (21) on the support member (20).

3. A modular sofa structure according to claim 1, characterized in that: The first component (31) is configured as a stud (311) and a nut (312) threadedly connected to the stud (311); the first connecting member (30) is provided with a first connecting through hole (302); the supporting member (20) is provided with a first connecting hole (21); one end of the stud (311) is connected to the first connecting hole (21); and one end of the stud (311) passes through the first connecting through hole (302) and is locked by the nut (312).

4. A modular sofa structure according to claim 2 or 3, characterized in that: The first connecting member (30) comprises a vertical connecting portion (300) and a horizontal connecting portion (301) which are arranged perpendicular to each other, the first connecting through hole (302) being arranged on the vertical connecting portion (300); and the second member (32) being fixedly arranged on the lower side of the horizontal connecting portion (301).

5. A modular sofa structure according to claim 4, characterized in that: The second component (32) is configured as a latch (320), the latch (320) being vertically fixed on the lower side of the horizontal connection portion (301), the top surface of the seat frame (10) being pre-set with a socket (11) matching the latch (320), the latch (320) being inserted into the socket (11) from top to bottom to form the plug connection.

6. A modular sofa structure according to claim 4, characterized in that: The first connecting through hole (302) and the second component (32) are both located at the lower side of the horizontal connecting portion (301).

7. A modular sofa structure according to any one of claims 1 to 3, characterized in that: The second connecting member (40) is in a sheet-like structure, and both ends of the second connecting member (40) are provided with second connecting through holes (400), and the third member (41) is configured as any one of a bolt, a screw, and a stud; The bottom of the support member (20) and the bottom of the seat frame (10) are both preset with a second connection hole (22) or a second hole position mark that matches the third component (41).

8. The modular sofa structure according to claim 1, characterized in that: A plurality of third connection holes (12) are preset at the bottom of the seat frame (10) and the bottom of the support member (20), and support feet (50) are provided at the third connection holes (12). The support feet (50) are detachably connected to the third connection holes (12).

9. The modular sofa structure according to claim 1, characterized in that: The thickness of the lower end of the inner side surface of the support member (20) is greater than the thickness of the upper end, so that an upward stepped surface (200) is formed on the inner side surface of the support member (20), the stepped surface (200) is flush with the top surface of the seat frame (10), and the bottom surface of the support member (20) is flush with the bottom surface of the seat frame (10).

10. A modular sofa, characterized in that: The invention comprises at least two seat frames (10) as described in any one of claims 1 to 9 and a plurality of support members (20), wherein the seat frames (10) are in a rectangular parallelepiped structure, the side surfaces of two adjacent seat frames (10) are butted, and the top surface edges of two adjacent seat frames are connected by a third connecting member (60); The support member (20) is arranged on any outer side surface of the seat frame (10), and the support member (20) and the seat frame (10) are connected via the first connecting member (30) and the second connecting member (40); the support member (20) can be configured as an armrest and / or a backrest.

11. A modular sofa according to claim 10, characterized in that: Insertion rods (61) are fixedly provided on the same side of both ends of the third connecting member (60), and the insertion rods (61) are plug-connected to the insertion holes (11) on the adjacent seat frame (10).

12. The modular sofa according to claim 10, characterized in that: The length of the long side of the seat frame (10) is set to L1, the length of the short side of the seat frame (10) is set to L2, and the long sides of two adjacent seat frames (10) are butt-jointed and assembled or the short sides are butt-jointed and assembled; the length of the support member is set to S1, the width of the support member is set to S2, and the gap between the support member (20) and the seat frame (10) after connection is K; wherein L1=S1, L2+S2+K=L2.

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