Module sofa connecting structure and module sofa

Abstract

The utility model discloses a modular sofa connecting structure and a modular sofa. The modular sofa connecting structure comprises at least one armrest module, at least one backrest module and at least one first seat frame module, the armrest module is detachably connected with the at least one first seat frame module through an accessory connecting piece; a horizontal connecting table top is arranged on the side, close to the first seat frame module, of the armrest module, and the horizontal connecting table top is flush with the upper surface of the first seat frame module. Different first seat frame modules are detachably connected through accessory connecting pieces; the backrest modules are in one-to-one correspondence with the first seat frame modules and are detachably connected to the first seat frame modules. According to the combined sofa, the armrests, the backrest, the seat frame, the seat frame and other components and the same modules of the sofa can be quickly, simply and conveniently combined together, so that free combination and secondary matching of the sofa are realized, and diversified requirements in different scenes are met; meanwhile, the transportation cost can be reduced, and the service life and practicability of the sofa are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of furniture, in particular to a modular sofa connecting structure and a modular sofa. BACKGROUND

[0002] In modern home life, sofas have become an indispensable part of people's daily life as an important piece of furniture. It not only provides a comfortable resting place, but also serves to enhance the aesthetic and practicality of the home space. However, traditional sofa designs are mostly fixed in size, with their components pre-assembled during production and shipped as a complete unit. While this design ensures the stability and integrity of the sofa to some extent, it also has many limitations.

[0003] Firstly, fixed-size sofas cannot meet the individual needs of users in terms of sofa size, shape and functionality. In modern home environments, space layouts and usage needs vary greatly, and fixed-size sofas are difficult to adapt to various scenarios, such as small-sized homes, open-plan living rooms or multi-functional spaces. Secondly, fixed-size sofas also have many inconveniences during transportation and installation. Due to their large size, transportation costs are high, and they are difficult to move in narrow spaces or special passages. In addition, once users have new needs for the layout or functionality of the sofa, traditional fixed-size sofas cannot be adjusted or recombined, limiting their service life and practicality.

[0004] To solve the above problems, some modular combination sofas have appeared on the market. These sofas design each component of the sofa (such as armrests, backrests, seat frames, etc.) as independent modules, allowing users to freely combine them according to their needs, thus achieving personalized customization. However, existing modular sofas still have obvious shortcomings in terms of assembly. Most modular sofas use fasteners such as screws for connection. This connection method is not only complex to operate, requiring professional tools and installation skills, but also prone to loosening or damage after multiple disassembly and assembly, affecting the service life and stability of the sofa. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a modular sofa connecting structure and a modular sofa, which solves the technical problem that existing technology cannot meet users' individual needs for sofas due to the fixed size of traditional sofas, the large size during transportation and installation, and the complex assembly method of existing modular sofas, thereby affecting the stability and service life of the sofa.

[0006] In a first aspect, the application provides a modular sofa connecting structure, which comprises at least one armrest module, at least one backrest module, and at least one first seat frame module; the armrest module is detachably connected to at least one first seat frame module through a fitting connecting piece; the armrest module is provided with a horizontal connecting platform on the side close to the first seat frame module, and the height of the horizontal connecting platform is flush with the upper surface of the first seat frame module; different first seat frame modules are detachably connected through fitting connecting pieces; the backrest module corresponds to the first seat frame module one by one and is detachably connected to the first seat frame module.

[0007] In an embodiment of the application, the fitting connecting piece is connected between the horizontal connecting platform and the upper surface of the first seat frame module.

[0008] In an embodiment of the application, the fitting connecting piece comprises a connecting plate and at least two pin heads fixed to the bottom surface of the connecting plate; the upper surface of the first seat frame module and the horizontal connecting platform are respectively provided with a first pin hole and a second pin hole; the at least two pin heads are respectively inserted into the first pin hole and the second pin hole, so that the first seat frame module and the armrest module are detachably connected.

[0009] In an embodiment of the application, the horizontal connecting platform of each armrest module and the upper surface of the adjacent first seat frame module are provided with at least two groups of fitting connecting pieces.

[0010] In an embodiment of the application, it further comprises a sofa foot and a connecting gasket; the top of the sofa foot is provided with a stud; the bottom of the first seat frame module and the bottom of the armrest module are respectively provided with a first screw hole and a second screw hole; the connecting gasket is provided with a round hole corresponding to the first screw hole and the second screw hole; the studs on the top of two sofa feet pass through the round hole of the connecting gasket and are screwed into the first screw hole and the second screw hole.

[0011] In an embodiment of the application, the upper surfaces of adjacent first seat frame modules are respectively provided with the first pin hole and the second pin hole; the at least two pin heads are respectively inserted into the first pin hole and the second pin hole, so that the adjacent first seat frame modules are detachably connected.

[0012] In an embodiment of the application, it further comprises a second seat frame module; the first seat frame module and the second seat frame module are detachably connected through the fitting connecting piece; the upper surface of the first seat frame module and the upper surface of the second seat frame module are respectively provided with the first pin hole and the second pin hole; the at least two pin heads are respectively inserted into the first pin hole and the second pin hole, so that the first seat frame module and the second seat frame module are detachably connected.

[0013] In an embodiment of the present application, the backrest module is detachably connected to the first seat frame module through a double-toothed screw and a nut.

[0014] In an embodiment of the present application, the double-toothed screw is fixedly arranged on a vertical plane of the backrest module close to one side of the first seat frame module; a threaded hole is arranged at a vertical side wall position of the first seat frame module corresponding to the backrest module; and the double-toothed screw is inserted into the threaded hole to connect the backrest module and the first seat frame module.

[0015] In an embodiment of the present application, the bottom of the first seat frame module and the bottom of the backrest module are each provided with a sofa foot and a connecting gasket; the top of the sofa foot is provided with a threaded stud; the bottom of the first seat frame module and the bottom of the backrest module are each provided with a third threaded hole and a fourth threaded hole; the connecting gasket is provided with a round hole corresponding to the third threaded hole and the fourth threaded hole; and the threaded studs on the top of the two sofa feet pass through the round hole of the connecting gasket and are screwed into the third threaded hole and the fourth threaded hole to detachably connect the bottom of the first seat frame module and the bottom of the backrest module.

[0016] In a second aspect, the present application provides a sofa comprising the modular sofa connecting structure according to any one of the first aspect of the present application.

[0017] As described above, the modular sofa connecting structure and the modular sofa according to the present application have the following beneficial effects:

[0018] The modular sofa connecting structure according to the present application can quickly and conveniently combine the components of a sofa such as an armrest, a backrest, a seat frame, a seat frame and the same modules together while ensuring the stability and reliability of the connection. Through this innovative connecting structure, users can easily realize the free combination and secondary collocation of the sofa, meet the diversified needs in different scenarios, reduce transportation costs, improve the service life and practicality of the sofa, and the versatility of the modular sofa connecting structure and the accessory connecting piece is strong, and the applicable range is wide. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 An exploded view of each module structure of the modular sofa connecting structure and the modular sofa according to the embodiments of the present application is shown.

[0020] Figure 2 A perspective view of each module of the modular sofa connecting structure and the modular sofa according to the embodiments of the present application after assembly is shown.

[0021] Figure 3 An exploded view of an armrest module and a first seat frame module in the modular sofa connecting structure and the modular sofa according to the embodiments of the present application is shown.

[0022] Figure 4 An exploded view of a handrail module and a first seat frame module in a modular sofa according to an embodiment of the present application.

[0023] Figure 5A A perspective view of a U-shaped accessory connector in a modular sofa according to an embodiment of the present application.

[0024] Figure 5B A front view of a U-shaped accessory connector in a modular sofa according to an embodiment of the present application.

[0025] Figure 5C A side view of a U-shaped accessory connector in a modular sofa according to an embodiment of the present application.

[0026] Figure 5D A top view of a U-shaped accessory connector in a modular sofa according to an embodiment of the present application.

[0027] Figure 6 An exploded view of a backrest module and a first seat frame module in a modular sofa according to an embodiment of the present application.

[0028] Figure 7 A perspective view of a backrest module and a first seat frame module in a modular sofa according to an embodiment of the present application.

[0029] Figure 8 A connection diagram among a handrail module, a backrest module, and a bottom of a first seat frame module in a modular sofa according to an embodiment of the present application.

[0030] Figure 9 A structure diagram among a handrail module, a backrest module, and a bottom of a first seat frame module in a modular sofa according to an embodiment of the present application.

[0031] BRIEF DESCRIPTION OF THE DRAWINGS

[0032] REFERENCE SIGNS

[0033] 100 modular sofa connection structure

[0034] 110 handrail module

[0035] 120 backrest module

[0036] 130 first seat frame module

[0037] 140 second seat frame module

[0038] 111 horizontal connection deck

[0039] 200 accessory connector

[0040] 210 connection plate

[0041] 220 pin head

[0042] 230 pin hole

[0043] 231 first pin hole

[0044] 232 second pin hole

[0045] 300 sofa leg

[0046] 310 threaded post

[0047] 320 first threaded hole

[0048] 330 second threaded hole

[0049] 340 third threaded hole

[0050] 350 fourth threaded hole

[0051] 400 connection spacer

[0052] 410 circular hole

[0053] 500 double-threaded screw

[0054] 510 threaded opening

[0055] 520 nut DETAILED DESCRIPTION

[0056] The present application is further described by the following non-limiting examples with reference to the accompanying drawings.

[0057] The present application is further described by the following non-limiting examples with reference to the accompanying drawings.

[0058] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the diagrams, not the number, shape and size of the components when actually implemented. The actual implementation of each component may be a random change in type, number and proportion, and the component layout may also be more complex.

[0059] The module sofa connecting structure and the module sofa provided in the following embodiments of the present application solve the technical problems that in the existing traditional sofa connecting structure, the conventional fixed specification sofa cannot meet the personalized needs of users for the sofa, the volume is large during transportation and installation, and the existing module sofa assembly method is complex, thereby affecting the stability and service life of the sofa.

[0060] The module sofa connecting structure and the module sofa provided in the embodiments of the present application adopt a modular combination structure design. This structure can quickly and simply combine the components such as the armrest, backrest, seat frame and seat frame of the sofa and between the same modules, while ensuring the stability and reliability of the connection. Through this innovative connecting structure, users can easily realize the free combination and secondary collocation of the sofa, meet the diversified needs in different scenarios, reduce the transportation cost, and improve the service life and practicality of the sofa.

[0061] The principle of the module sofa connecting structure and the module sofa of the present embodiment will be described in detail below with reference to the accompanying drawings.

[0062] Please refer to Figure 1 , Figure 2 , which respectively show the exploded view of each module structure of the module sofa connecting structure and the module sofa according to the embodiments of the present application and the three-dimensional structure schematic diagram of the module sofa connecting structure and the module sofa after assembly according to the embodiments of the present application. As shown in Figure 1 , Figure 2 , the module sofa connecting structure 100 comprises at least one armrest module 110, at least one backrest module 120, and at least one first seat frame module 130.

[0063] In an embodiment, the armrest module 110 is detachably connected to at least one first seat frame module 130 through a fitting connecting piece 200. The armrest module 110 is provided with a horizontal connecting table 111 on the side close to the first seat frame module 130, and the height of the horizontal connecting table 111 is flush with the upper surface of the first seat frame module 130. Different first seat frame modules 130 are detachably connected through a fitting connecting piece 200. The backrest module 120 corresponds to the first seat frame module 130 one by one and is detachably connected to the first seat frame module 130.

[0064] Please refer toFigure 3 , Figure 4 , respectively show the exploded view of the module sofa connecting structure and the armrest module and the first seat frame module in the module sofa, the combined perspective structure appearance schematic diagram of the module sofa connecting structure and the armrest module and the first seat frame module in the module sofa.

[0065] The accessory connector 200 is connected to the upper surface of the horizontal connecting table top 111 and the first seat frame module 130.

[0066] In some implementations, the accessory connector 200 can adopt a variety of structural forms (such as: buckle structure, screw, nut, connecting plate, etc.) for connecting different sofa modules. Different accessory structures can be selected according to different module docking methods or connection positions. For example, the connection between the armrest module 110 and the first seat frame module 130, and the connection between adjacent first seat frame modules 130 can preferably adopt a U-shaped buckle structure (the U-shaped buckle can preferably adopt a 2-hole plastic U-shaped buckle); the connection between the backrest module 120 and the corresponding first seat frame module 130 can preferably adopt a combination of a screw and a nut 520, etc.

[0067] The following describes the U-shaped buckle structure as the accessory connector.

[0068] Please refer to Figures 5A to 5D , respectively show the combined perspective structure appearance schematic diagram of the module sofa connecting structure and the U-shaped accessory connector in an embodiment of the module sofa, the front view of the U-shaped accessory connector in an embodiment of the module sofa connecting structure and the module sofa, the side view of the U-shaped accessory connector in an embodiment of the module sofa connecting structure and the module sofa, and the top view of the U-shaped accessory connector in an embodiment of the module sofa connecting structure and the module sofa.

[0069] In an embodiment, the accessory connector 200 includes a connecting plate 210 and at least two pin heads 220 fixed to the bottom surface of the connecting plate 210. The upper surface of the first seat frame module 130 and the horizontal connecting table top 111 are respectively provided with a first pin hole 231 and a second pin hole 232. The at least two pin heads 220 are respectively inserted into the first pin hole 231 and the second pin hole 232, so that the first seat frame module 130 and the armrest module 110 can be detachably connected.

[0070] The horizontal connecting table top 111 of each armrest module 110 and the upper surface of the adjacent first seat frame module 130 are provided with at least two groups of accessory connectors 200.

[0071] Specifically, two sets of accessory connectors 200 are preferably arranged on the upper surface of the armrest module 110 and the first seat frame module 130 corresponding thereto (the number of accessory connectors 200 can be selected according to the size of the sofa, and the number of accessory connectors 200 can be increased if the size is large). The horizontal connecting table of the armrest module 110 and the upper surface of the corresponding first seat frame module 130 are flush, and the first pin hole 231 and the second pin hole 232 are arranged on the horizontal connecting table 111 and the upper surface of the first seat frame module 130, and the two pin heads 220 of the U-shaped accessory connector 200 are respectively inserted into the first pin hole 231 and the second pin hole 232, so as to connect the armrest module 110 and the first seat frame module 130. According to the requirement, the stability of the connection between the armrest module 110 and the first seat frame module 130 can be improved by increasing the accessory connector 200.

[0072] At the same time, after ensuring the fixation of the upper surfaces of the armrest module 110 and the first seat frame module 130, the bottom of the armrest module 110 and the first seat frame module 130 can also be connected.

[0073] Please refer to Figures 6 to 9 , respectively showing the exploded view of the modular sofa connection structure and the backrest module and the first seat frame module in the modular sofa described in the embodiment of the application, the perspective structure appearance schematic diagram of the combination of the modular sofa connection structure and the backrest module and the first seat frame module in the modular sofa described in the embodiment of the application, the connection schematic diagram between the armrest module, the backrest module, the first seat frame module and the bottom of the modular sofa connection structure and the modular sofa described in the embodiment of the application, and the structure schematic diagram of the combination between the armrest module, the backrest module, the first seat frame module and the bottom of the modular sofa connection structure and the modular sofa described in the embodiment of the application.

[0074] In the embodiment, the modular sofa connection structure further comprises a sofa leg 300 and a connecting gasket 400. The top of the sofa leg 300 is provided with a stud 310; the bottom of the first seat frame module 130 and the bottom of the armrest module 110 are respectively provided with a first screw hole 320 and a second screw hole 330. The connecting gasket 400 is provided with a round hole corresponding to the first screw hole 320 and the second screw hole 330. The studs 310 at the top of the two sofa legs 300 pass through the round holes of the connecting gasket 400 and are screwed into the first screw hole 320 and the second screw hole 330.

[0075] Specifically, the sofa feet 300 are arranged at the edge positions of the bottom of each module, and the top of each sofa foot 300 is provided with a threaded stud 310. The bottom of the first seat frame module 130 and the bottom of the armrest module 110 are respectively provided with a first threaded hole 320 and a second threaded hole 330. The connecting gasket 400 is provided with at least two round holes, and the distance between the two round holes can meet the installation requirements of the gasket. During installation, the threaded stud 310 on the sofa foot 300 is inserted through the round hole on the connecting gasket 400, and then the threaded stud 310 is screwed into the first threaded hole 320; at the same time, the other sofa foot 300 is inserted through the other round hole of the connecting gasket 400 in the same way, and the threaded stud 310 is screwed into the second threaded hole 330.

[0076] Similarly, the upper surfaces of the adjacent first seat frame modules 130 are respectively provided with the first pin hole 231 and the second pin hole 232. The at least two pin heads 220 are respectively inserted into the first pin hole 231 and the second pin hole 232, so that the adjacent first seat frame modules 130 can be detachably connected.

[0077] Specifically, in addition to a single-seat sofa, there is also a multi-seat sofa, that is, when a plurality of first seat frame modules 130 are included, the first seat frame module 130 and the first seat frame module 130 can also be connected by using the accessory connector 200 of this structure. That is, the junctions of the upper surfaces of the adjacent first seat frame modules 130 are respectively provided with at least two groups of accessory connectors 200; the junctions of the bottoms of the adjacent first seat frame modules 130 are respectively provided with sofa feet 300 fixedly connected to the gaskets 400.

[0078] Similarly, the bottoms of the adjacent first seat frame modules 130 are respectively provided with the first threaded hole 320 and the second threaded hole 330; the threaded studs 310 on the tops of the two sofa feet 300 are inserted through the round holes of the connecting gasket 400 and screwed into the first threaded hole 320 and the second threaded hole 330, so that the bottoms of the adjacent first seat frame modules 130 can be detachably connected.

[0079] In an embodiment, the module sofa connecting structure can further include a second seat frame module 140. The first seat frame module 130 and the second seat frame module 140 are detachably connected by the accessory connector 200.

[0080] Specifically, the upper surface of the first seat frame module 130 and the upper surface of the second seat frame module 140 have the same height. The upper surface of the first seat frame module 130 and the upper surface of the second seat frame module 140 are respectively provided with the first pin hole 231 and the second pin hole 232. The at least two pin heads 220 are respectively inserted into the first pin hole 231 and the second pin hole 232, so that the first seat frame module 130 and the second seat frame module 140 can be detachably connected.

[0081] The bottom of the first seat frame module 130 and the bottom of the second seat frame module 140 are respectively provided with a first screw hole 320 and a second screw hole 330; the studs 310 on the top of the two sofa feet 300 pass through the round holes of the connecting gaskets 400 and are screwed into the first screw hole 320 and the second screw hole 330, so that the bottom of the first seat frame module 130 and the bottom of the second seat frame module 140 can be detachably connected.

[0082] In this embodiment, the connection between adjacent first seat frame modules 130 and between the first seat frame module 130 and the second seat frame module 140 preferably adopts the same mounting method.

[0083] Please continue to refer to Figures 8 to 9 .

[0084] In an embodiment, the backrest module 120 is detachably connected to the first seat frame module 130 by means of double-toothed screws 500 and nuts 520.

[0085] In this embodiment, the double-toothed screws 500 are fixedly arranged on the vertical plane of the side of the backrest module 120 close to the first seat frame module 130; the vertical side wall of the first seat frame module 130 corresponding to the backrest module 120 is provided with a threaded opening 510; the double-toothed screws 500 are inserted into the threaded opening 510 to connect the backrest module 120 and the first seat frame module 130.

[0086] Specifically, preferably, four double-toothed screws 500 and four nuts 520 are provided; four openings are provided on the side wall of the first seat frame module 130 corresponding to the double-toothed screws 500. During installation, the four double-toothed screws 500 are simultaneously inserted into the corresponding threaded openings 510, and the connection is completed.

[0087] In an embodiment, the bottom of the first seat frame module 130 and the bottom of the backrest module 120 are both provided with sofa feet 300 and connecting gaskets 400.

[0088] The top of the sofa feet 300 is provided with a stud 310. The bottom of the first seat frame module 130 and the bottom of the backrest module 120 are both provided with a third screw hole 340 and a fourth screw hole 350; the connecting gasket 400 is provided with a round hole corresponding to the third screw hole 340 and the fourth screw hole 350; the studs 310 on the top of the two sofa feet 300 pass through the round holes of the connecting gasket 400 and are screwed into the third screw hole 340 and the fourth screw hole 350, so that the bottom of the first seat frame module 130 and the bottom of the backrest module 120 can be detachably connected.

[0089] Specifically, the bottom of the first seat frame module 130 and the bottom of the backrest module 120 are also connected and fixed by the structure of the sofa foot 300 fixedly connecting the gasket 400.

[0090] As can be seen from the above, the application can connect the armrest module and the first seat frame module, the first seat frame module, the first seat frame module and the second seat frame module, and the backrest module and the first seat frame module (including the connection of the upper surface and the bottom) by using different structures of the accessory connecting piece according to different user needs, so as to realize the structure mode of free combination of each module. This structure can quickly and simply combine the components such as the armrest, backrest, seat frame, and seat frame of the sofa, while ensuring the stability and reliability of the connection.

[0091] In summary, the module sofa connecting structure and the module sofa provided by the application can easily realize the free combination and secondary collocation of the sofa by the innovative connecting structure, meet the diversified needs in different scenes, reduce the transportation cost, improve the service life and practicality of the sofa, and have high practical value. At the same time, the module sofa connecting structure and the module sofa and the accessory connecting piece have strong universality, wide application range, and high practical value.

[0092] The above embodiments only illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the application should be covered by the claims of the application.

Claims

1. A modular sofa connection structure, characterized in that, The modular sofa connection structure includes: at least one armrest module, at least one backrest module, and at least one first seat frame module; The armrest module is detachably connected to at least one of the first seat frame modules via accessory connectors; The armrest module is provided with a horizontal connecting platform on the side near the first seat frame module, and the height of the horizontal connecting platform is flush with the upper surface of the first seat frame module. Different first frame modules can be detachably connected via accessory connectors; The backrest module corresponds one-to-one with the first seat frame module and is detachably connected to the first seat frame module.

2. The modular sofa connection structure according to claim 1, characterized in that, The accessory connector is connected to the horizontal connecting platform and the upper surface of the first seat frame module.

3. The modular sofa connection structure according to claim 1, characterized in that, The accessory connector includes: a connecting plate and at least two pins fixed to the bottom surface of the connecting plate; The upper surface of the first seat frame module and the horizontal connecting platform are respectively provided with a first pin hole and a second pin hole; The at least two pins are respectively inserted into the first pin hole and the second pin hole, so that the first seat frame module and the armrest module can be detachably connected.

4. The modular sofa connection structure according to claim 3, characterized in that, Each of the armrest modules has at least two sets of accessory connectors on its horizontal connecting platform and the upper surface of the adjacent first seat frame module.

5. The modular sofa connection structure according to claim 3, characterized in that, Also includes: Sofa legs, connecting pads; The top of the sofa leg is provided with a stud; The bottom of the first seat frame module and the bottom of the armrest module are respectively provided with a first screw hole and a second screw hole; The connecting gasket has a round hole corresponding to the first screw hole and the second screw hole; The two studs at the top of the sofa legs pass through the round holes of the connecting pads and are screwed into the first and second screw holes.

6. The modular sofa connection structure according to claim 3, characterized in that, The upper surfaces of adjacent first seat frame modules are respectively provided with the first pin hole and the second pin hole; The at least two pins are respectively inserted into the first pin hole and the second pin hole to make the adjacent first seat frame modules detachably connected.

7. The modular sofa connection structure according to claim 3, characterized in that, Also includes: Second frame module; The first seat frame module and the second seat frame module are detachably connected via the accessory connector; The upper surface of the first seat frame module and the upper surface of the second seat frame module are respectively provided with the first pin hole and the second pin hole; The at least two pins are respectively inserted into the first pin hole and the second pin hole, so that the first seat frame module and the second seat frame module can be detachably connected.

8. The modular sofa connection structure according to claim 1, characterized in that, The backrest module is detachably connected to the first seat frame module via a double-threaded screw and a nut.

9. The modular sofa connection structure according to claim 8, characterized in that, The double-threaded screw is fixedly mounted on the vertical plane of the backrest module near the first seat frame module; A threaded opening is provided at the vertical side wall position of the first seat frame module corresponding to the backrest module; The double-threaded screw is inserted into the threaded opening to connect the backrest module and the first seat frame module.

10. The modular sofa connection structure according to claim 8, characterized in that, Both the bottom of the first seat frame module and the bottom of the backrest module are provided with sofa legs and connecting pads; The top of the sofa leg is provided with a stud; The bottom of the backrest module at the bottom of the first seat frame module is provided with a third screw hole and a fourth screw hole; The connecting gasket has a round hole corresponding to the third screw hole and the fourth screw hole; The studs at the top of the two sofa legs pass through the round holes of the connecting pads and are screwed into the third and fourth screw holes, so that the bottom of the backrest module at the bottom of the first seat frame module is detachably connected.

11. A sofa, characterized in that, include: The modular sofa connection structure according to any one of claims 1 to 10.

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