Sofa assembly and sofa

Abstract

A sofa assembly (100) comprises a main body structure (1), a first foot frame (2), a second foot frame (3), and a back panel (4). The first foot frame (2) and the second foot frame (3) are arranged on two sides of the main body structure (1), and the back panel (4) is arranged between the first foot frame (2) and the second foot frame (3); the first foot frame (2) is provided with a first support (21) and two first support legs (22a, 22b), and the first foot frame (2) is provided with at least one first connecting part (26); the second foot frame (3) is provided with a second support (31) and two second supporting legs (32a, 32b), and the second foot frame (3) is provided with at least one second connecting part (36). The first connecting part (26) and the second connecting part (36) are detachably connected, so that quick connection and disassembly between two adjacent sofa assemblies can be realized.

Description

Sofa components and sofas Technical Field

[0001] The invention relates to a sofa assembly and a sofa, in particular to a sofa assembly for a modular or spliced ​​sofa. Background Art

[0002] With the development of society, people's material living standards have gradually improved. Therefore, as an important part of furniture in daily life, people have put forward higher requirements for sofas.

[0003] Traditional sofas typically use a lot of wood. In particular, their support frames are often made of multiple wooden boards. These boards often come together to form a wooden support frame with an interior space, within which the main structure of the sofa is mounted and fixed. However, assembling a sofa requires a significant amount of specialized personnel using nail guns to connect and secure the multiple boards to form a complete wooden support frame, which is then attached to the main structure. This assembly process is cumbersome, time-consuming, and labor-intensive, resulting in low production efficiency and increased labor costs. Furthermore, because the multiple boards that make up the wooden support frame may have varying shapes, the production of each board requires individual drawings and layouts. This reduces processing efficiency and increases costs. Furthermore, for modular or spliced ​​sofas, the two wooden support frames of adjacent sofa components must be secured together, a task that typically requires specialized personnel and is a complex and tedious installation process.

[0004] Therefore, there is a need to improve the traditional sofa, especially to improve the wooden support frame of the traditional sofa, so as to simplify the structure of the components used to support the sofa on the ground, thereby simplifying the assembly process of the sofa, improving the aesthetics of the sofa, and improving production efficiency and reducing production costs.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide a sofa assembly to simplify the structure of components, improve the aesthetics of the sofa, and improve production efficiency and reduce production costs.

[0007] According to one aspect of the present invention, a sofa assembly is provided, which includes a main structure, a first leg, a second leg and a backboard, the first leg and the second leg are arranged on both sides of the main structure along the width direction and are respectively connected to the main structure, the backboard is arranged between the first leg and the second leg and is respectively connected to the rear end of the first leg and the rear end of the second leg; the first leg has a first bracket and two first supporting feet, the two first supporting feet are respectively arranged at both ends of the first bracket along the length direction, and the first leg is provided with at least one first connecting portion; the second leg has a second bracket and two second supporting feet, the two second supporting feet are respectively arranged at both ends of the second bracket along the length direction, and the second leg is provided with at least one second connecting portion.

[0008] According to the above solution, compared with the traditional wooden support frame, the sofa assembly has fewer parts and a simpler component structure, which simplifies the assembly process and can be automated by a robot or completed without the need for professionals.

[0009] By providing the first connecting portion and the second connecting portion on the first leg and the second leg on both sides of the sofa assembly, respectively, two adjacent sofa assemblies can be quickly connected and disassembled, thereby simplifying the sofa assembly process, improving production efficiency and reducing costs.

[0010] In one embodiment, the first leg and the second leg are selected from one or more of metal parts, blow-molded parts, injection-molded parts, extruded parts, and wood-plastic parts.

[0011] According to the above solution, the first leg and the second leg can be industrially and automatically produced by stamping, blow molding, injection molding, extrusion or wood-plastic molds, which avoids traditional wood board processing and can also improve the aesthetics of the product and ensure the quality rate of the product.

[0012] The first tripod and the second tripod can also be connected to the main structure as a whole by riveting, so that they can be used directly without the need for staff to assemble them, thereby further improving production efficiency and reducing labor costs.

[0013] In one embodiment, at least one first connecting portion is a notch.

[0014] In one embodiment, the notch has a slide-in section and a locking section.

[0015] In one embodiment, the recess further comprises a stop.

[0016] In one embodiment, the at least one second connecting portion is detachably mounted to the second leg.

[0017] In one embodiment, the at least one second connection portion is configured to be detachably connected to the at least one first connection portion of an adjacent sofa assembly.

[0018] In one embodiment, the first stand has at least one first fixing portion, and the second stand has at least one second fixing portion.

[0019] According to the above-described solutions, by providing detachably connected first and second connecting portions on the first and second legs of the sofa assembly, respectively, it is possible to quickly connect and disconnect two adjacent sofa assemblies. Thus, the connection between the two adjacent sofa assemblies can be easily completed by sliding the second connecting portion along the sliding section of the first connecting portion into the locking section. This can further simplify the sofa assembly process, improve production efficiency, and reduce costs.

[0020] Furthermore, when the second connecting portion is connected in place, the stopper in the first connecting portion can also prevent the second connecting portion from accidentally detaching from the first connecting portion, or limit the second connecting portion from moving upward in the height direction.

[0021] According to another aspect of the present invention, a first side sofa assembly is also provided, which includes a main structure, a first leg, a second leg and a back panel, the first leg and the second leg are arranged on both sides of the main structure along the width direction and are respectively connected to the main structure, the back panel is arranged between the first leg and the second leg and is respectively connected to the rear end of the first leg and the rear end of the second leg; the first leg has a first bracket and two first supporting feet, the two first supporting feet are respectively arranged at both ends of the first bracket along the length direction, and the first leg is also provided with at least one first connecting portion; the second leg has a second bracket and two second supporting feet, the two second supporting feet are respectively arranged at both ends of the second bracket along the length direction.

[0022] In one embodiment, at least one first connecting portion is a notch.

[0023] In one embodiment, the notch has a slide-in section and a locking section.

[0024] In one embodiment, the recess further comprises a stop.

[0025] In one embodiment, the first stand has at least one first fixing portion, and the second stand has at least one second fixing portion.

[0026] In one embodiment, at least one first connection portion is configured to be detachably connected to at least one second connection portion of an adjacent sofa assembly.

[0027] According to the above-described solutions, by providing a first connecting portion on one side of a first side sofa assembly, it is possible to quickly connect and disconnect it from the second connecting portion of an adjacent sofa assembly. Thus, the connection between two adjacent sofa assemblies can be easily completed by sliding the second connecting portion of the adjacent sofa assembly along the sliding section of the first connecting portion into the locking section. This can further simplify the sofa assembly process, improve production efficiency, and reduce costs.

[0028] Furthermore, when the second connecting portion is connected in place, the stopper in the first connecting portion can also prevent the second connecting portion from accidentally detaching from the first connecting portion, or limit the second connecting portion from moving upward in the height direction.

[0029] According to another aspect of the present invention, a second side sofa assembly is also provided, which includes a main structure, a first leg, a second leg and a back panel, the first leg and the second leg are arranged on both sides of the main structure along the width direction and are respectively connected to the main structure, the back panel is arranged between the first leg and the second leg and is respectively connected to the rear end of the first leg and the rear end of the second leg; the first leg has a first bracket and two first supporting feet, the two first supporting feet are respectively arranged at both ends of the first bracket along the length direction; the second leg has a second bracket and two second supporting feet, the two second supporting feet are respectively arranged at both ends of the second bracket along the length direction, and the second bracket is also provided with at least one second connecting portion.

[0030] In one embodiment, the at least one second connecting portion is detachably mounted to the second leg.

[0031] In one embodiment, the at least one second connection portion is configured to be detachably connected to the at least one first connection portion of an adjacent sofa assembly.

[0032] In one embodiment, the first stand has at least one first fixing portion, and the second stand has at least one second fixing portion.

[0033] According to the above-described solutions, by providing a second connecting portion on one side of the second side sofa assembly, it is possible to quickly connect and disconnect it from the first connecting portion of the adjacent sofa assembly. Thus, the connection between two adjacent sofa assemblies can be easily completed by sliding the second connecting portion along the sliding section of the first connecting portion of the adjacent sofa assembly into the locking section. This can further simplify the sofa assembly process, improve production efficiency, and reduce costs.

[0034] According to another aspect of the present invention, a sofa is also provided, which includes the above-mentioned first side sofa component and second side sofa component; the first side sofa component and the second side sofa component are arranged side by side and closely along the width direction, and the first connecting part of the first side sofa component is detachably connected to the second connecting part of the second side sofa component.

[0035] In one embodiment, the above-mentioned sofa assembly is also included between the first side sofa assembly and the second side sofa assembly; the first side sofa assembly, one or more sofa assemblies and the second side sofa assembly are arranged side by side in sequence along the width direction, and each sofa assembly is detachably connected by a first connecting part and a second connecting part.

[0036] According to the above two solutions, the first connecting portion or the second connecting portion on the side sofa component can enable it to be quickly connected to the adjacent sofa component, thereby completing the assembly of the entire sofa. This can effectively simplify the sofa assembly process, improve production efficiency and reduce labor costs.

[0037] In addition, since a variety of sofa components with different structures are provided, the type and quantity of sofa components can be selected according to different needs, and then multiple sofa components can be combined into sofas of different lengths to meet different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] To better understand the above and other objects, features, advantages, and functions of the present invention, reference may be made to the preferred embodiments shown in the accompanying drawings. Like reference numerals in the accompanying drawings refer to like components. Those skilled in the art should understand that the accompanying drawings are intended to illustrate preferred embodiments of the present invention by way of illustration and are not intended to limit the scope of the present invention. The components in the drawings are not drawn to scale.

[0039] FIG1 shows a left perspective view of a sofa assembly according to an exemplary embodiment of the present invention;

[0040] FIG2 shows a right side perspective view of a sofa assembly according to an exemplary embodiment of the present invention;

[0041] FIG3 shows a left perspective view of a first tripod according to an exemplary embodiment of the present invention;

[0042] FIG4 shows a right perspective view of a first tripod according to an exemplary embodiment of the present invention;

[0043] FIG5 shows a right side perspective view of a second tripod according to an exemplary embodiment of the present invention;

[0044] FIG6 shows a left perspective view of a second tripod according to an exemplary embodiment of the present invention;

[0045] FIG7 shows a right side perspective view of a second leg with a second connecting portion according to an exemplary embodiment of the present invention;

[0046] FIG8 shows a perspective view of a second connecting portion of a second tripod according to an exemplary embodiment of the present invention;

[0047] FIG9 shows a front view of a back panel fixing member according to an exemplary embodiment of the present invention;

[0048] FIG10 shows a perspective view of a back panel fixing member according to an exemplary embodiment of the present invention;

[0049] FIG11 shows a left perspective view of a first side sofa assembly according to an exemplary embodiment of the present invention;

[0050] FIG12 shows a right perspective view of a first side sofa assembly according to an exemplary embodiment of the present invention;

[0051] FIG13 shows a front view of another back panel fixing member according to an exemplary embodiment of the present invention;

[0052] FIG14 shows a perspective view of another back panel fixing member according to an exemplary embodiment of the present invention;

[0053] FIG15 shows a front view of a decorative member according to an exemplary embodiment of the present invention;

[0054] FIG16 shows a perspective view of a decorative member according to an exemplary embodiment of the present invention;

[0055] FIG17 shows a left perspective view of the second side sofa assembly of an exemplary embodiment of the present invention;

[0056] FIG. 18 illustrates a right perspective view of the second side sofa assembly according to an exemplary embodiment of the present invention.

[0057] Explanation of the reference numerals: 100 – sofa assembly 200 – first side sofa assembly 300 – second side sofa assembly 1 – main structure 2 – first leg 21 – first bracket 22a, 22b – first supporting leg 23 – first fixing portion 23a – first upper fixing portion 23b – first lower fixing portion 24a – first leg upper edge 24b – first leg lower edge 25a, 25b, 25c – reinforcement 26 – first connecting portion 261 – sliding section rib 262 – locking section 263 – stop portion 27 – mounting hole 28 – fixing hole 3 – second leg 31 – second bracket 32a, 32b – second supporting leg 33 – second fixing portion 33a – first upper fixing portion 33b – first lower fixing portion 34a – second leg upper edge 34b – second leg lower edge 35a, 35b, 35c – reinforcement 36 – second connecting portion 3 61 – Head Rib 362 – First Rod 363 – Second Rod 364 – Step 37a, 37b, 37c – Mounting 38 – Fixing Hole 39 – Fixing Hole 4 – Back Panel 5, 5' – Back Panel Fixing 51 – Middle Portion 511 – Horizontal Section 512 – Inclined Section 513 – Tripod Mounting Hole 514 – Reinforcing Rib 52 – First Bent Section 521 – Main Structure Mounting Hole 53 – Second Bent Section 531 – Back Panel Mounting Holes 6, 6' – Back Panel Fixing 61 – Main Body 611 – Vertical Section 612 – Inclined Section 613 – Tripod Mounting Hole 614 – Reinforcing Rib 62 – Bent Section 621 – Back Panel Mounting Holes 7, 7' – Decorative Part 71 – Horizontal Section 72 – Vertical Section 73 – Tripod Mounting Hole B – Rear of the Main Structure F – Front of the Main Structure D1 – Length D2 – Width D3 – Height DETAILED DESCRIPTION

[0058] Now referring to the accompanying drawings, the specific embodiments of the present invention will be described in detail. What is described here is only the preferred embodiment of the present invention. Those skilled in the art can think of other ways to implement the present invention based on the preferred embodiment, and the other ways also fall within the scope of the present invention.

[0059] It should be noted that the directional terms "up", "down", "left", "right", "front", "back", "above", "below", "front", "back", "front end", "back end", "left side" and "right side" used in this document only refer to relative directions, and their purpose is to more clearly describe the various exemplary embodiments provided by the present invention, and are not intended to limit or restrict the present invention.

[0060] 1 and 2 show perspective views of a sofa assembly 100 according to an exemplary embodiment of the present invention. The sofa assembly 100 includes a main body structure 1 , a first leg frame 2 , a second leg frame 3 , and a backboard 4 .

[0061] The first and second legs 2 and 3 can be made of one or more of metal, blow-molded, injection-molded, extruded, and wood-plastic parts. When the first and second legs 2 and 3 are metal, they can be made from one or more metal materials such as iron, aluminum, and alloys thereof, through a stamping process. When the first and second legs 2 and 3 are non-metallic, they can be made from one or more thermoplastic materials such as polyethylene, polyvinyl chloride, polypropylene, and polyester, through blow molding, injection molding, extrusion, or wood-plastic molding.

[0062] To facilitate description of exemplary embodiments of the present invention, the length, width, and height of the sofa assembly 100 are labeled D1, D2, and D3, respectively. Furthermore, the length of the main structure 1, the first leg 2, and the second leg 3 are parallel to the length D1 of the sofa assembly 100, the width of the main structure 1 is parallel to the width D2 of the sofa assembly 100, and the height of the main structure 1, the first leg 2, and the second leg 3 is parallel to the height D3 of the sofa assembly 100.

[0063] As shown in the figure, if viewed from above the sofa assembly 100, the main structure 1 is generally rectangular in shape. Along the length direction D1, the main structure 1 has a front F and a rear B. The first leg 2 and the second leg 3 are respectively arranged on both sides of the main structure 1 along the width direction D2 and are connected to the main structure 1. The back panel 4 is arranged between the first leg 2 and the second leg 3 and is located at the rear B of the main structure 1, and the back panel 4 is respectively connected to the rear end of the first leg 2 and the rear end of the second leg 3. The front end of the first leg 2 and the front end of the second leg 3 are both close to the front F of the main structure 1, while the rear end of the first leg 2 and the rear end of the second leg 3 are both close to the rear B of the main structure 1. The above-mentioned front, rear, front and rear end all refer to the directions recognized by the user when sitting on the sofa assembly 100, and the same applies to the left and right sides mentioned in this specification.

[0064] Preferably, the first leg 2 and the second leg 3 can be connected to the main structure 1 as a whole by riveting.

[0065] Compared to traditional wooden support frames, the sofa assembly 100 provided by the present invention has fewer components and a simpler structure, which simplifies the assembly process and allows for automated robotic assembly or the removal of specialized personnel. Furthermore, the first and second legs 2 and 3 can be industrially and automatically produced using stamping, blow molding, injection molding, extrusion, or wood-plastic molds, eliminating the need for traditional wood processing, improving the product's aesthetics, and ensuring a high yield. This reduces costs, improves production efficiency, and enhances product quality.

[0066] At the same time, the first leg 2 and the second leg 3 are connected to the main structure 1 as a whole by riveting, and can be used directly without the need for staff to assemble them, thereby further improving production efficiency and reducing labor costs.

[0067] Now referring to Figures 3 and 4, the first tripod 2 includes a first bracket 21 and two first support legs 22a and 22b. The first bracket 21 and the two first support legs 22a and 22b are preferably formed integrally using metal parts. The first bracket 21 extends along the length direction D1. The two first support legs 22a and 22b are located at the front and rear ends of the first bracket 21 along the length direction D1, respectively. Along the height direction D3, the upper edge of the first bracket 21 is aligned with the upper edges of the two first support legs 22a and 22b, and the heights of the two first support legs 22a and 22b are equal to and greater than the height of the first bracket 21. Therefore, when the first tripod 2 is placed vertically on the ground, the two first support legs 22a and 22b first contact the ground, allowing the first bracket 21 to be suspended above the ground.

[0068] The first leg 2 may also have at least one first fixing portion 23. The first fixing portion 23 is configured to fix the first leg 2 to the main structure 1. In an exemplary embodiment of the present invention, the first leg 2 has two first fixing portions 23 arranged on the first bracket 21 at intervals along the length direction D1. The first fixing portion 23 is recessed from the outside of the first leg 2 to the inside thereof along the width direction D2, forming a recess on the outside and a protrusion on the inside. The outside of the first leg 2 refers to the side of the first leg 2 away from the main structure 1 along the width direction D2. The inside of the first leg 2 refers to the side of the first leg 2 closer to the main structure 1 along the width direction D2. Preferably, the outline of the first fixing portion 23 may be rectangular.

[0069] As shown in the figure, the two first fixing portions 23 are a first upper fixing portion 23a located near the first supporting leg 22a, and a first lower fixing portion 23b located near the first supporting leg 22b. The first upper fixing portion 23a intersects with the upper edge 24a of the first leg 2, thereby forming an opening at the upper edge 24a. Similarly, the first lower fixing portion 23b intersects with the lower edge 24b of the first leg 2, thereby also forming an opening at the lower edge 24b. The first upper fixing portion 23a and the first lower fixing portion 23b may each be provided with at least one through-hole for securing them to the main structure 1.

[0070] The first leg 2 may also be provided with at least one reinforcing rib. This rib is recessed from the outside of the first leg 2 toward the inside along the width direction D2, forming a concave portion on the outside and a convex portion on the inside. Furthermore, the rib may extend along at least a portion of the first leg 2 along the length direction D1, along the height direction D3, or along a direction at an angle to the length direction D1. The shape of the rib may be linear, bent, curved, triangular, rectangular, polygonal, or other shapes.

[0071] As shown in the figure, the first leg 2 has reinforcing ribs 25a, 25b, and 25c. The reinforcing rib 25a is located at the junction of the first bracket 21 and the first support leg 22a, and extends from the first support leg 22a to the first bracket 21 at an angle to the longitudinal direction D1. The reinforcing rib 25b extends along a portion of the first bracket 21 along the longitudinal direction D1. Preferably, the reinforcing rib 25b extends from a position near the first upper fixing portion 23a to near the first support leg 22b. Furthermore, the reinforcing rib 25b is located on a side of the first lower fixing portion 23b near the upper edge 24a. The reinforcing rib 25c is located at the junction of the first bracket 21 and the first support leg 22b, and extends from the first support leg 22b to the first bracket 21 at an angle to the longitudinal direction D1.

[0072] Preferably, at least one of the two first supporting legs 22a, 22b may also be provided with reinforcing ribs.

[0073] Furthermore, the first leg 2 may also have at least one first connecting portion 26 for removably connecting to an adjacent leg. For example, as shown, the first leg 2 has two first connecting portions 26 spaced apart along the length direction D1. One first connecting portion 26 is located at the first supporting leg 22a, and the other first connecting portion 26 is located at the first supporting leg 22b. The first connecting portion 26 extends from the outside of the first leg 2 to the inside thereof, intersecting with the upper edge 24a of the first leg 2 to form an opening at the upper edge 24a. Thus, the first connecting portion 26 forms a notch extending through the first leg 2 along the width direction D2.

[0074] As an exemplary embodiment of the present invention, the first connecting portion 26 may have a sliding section 261 and a locking section 262. The sliding section 261 extends from the opening at the upper edge 24a toward the interior of the first supporting leg 22a or the first supporting leg 22b in a direction at an angle relative to the height direction D3, and after extending for a certain distance, it changes to continue extending along the height direction D3, thereby forming a locking section 262 located below the sliding section 261. The sliding section 261 and the locking section 262 are connected to each other. In addition, the width of the notch formed by the sliding section 261 may be greater than the width of the notch formed by the locking section 262, so that the portion of the adjacent tripod that cooperates with the first connecting portion 26 can more easily enter the sliding section 261.

[0075] Preferably, the first connecting portion 26 may further include a stopper 263. The stopper 263 may be disposed in the transition region between the sliding section 261 and the locking section 262. As shown in the figure, the stopper 263 may be a protrusion extending along the length direction D1 and configured to reduce the width of the gap in the transition region between the sliding section 261 and the locking section 262.

[0076] Referring now to Figures 5 to 7 , the second tripod 3 includes a second bracket 31 and two second supporting legs 32a and 32b. The second bracket 31 and the two second supporting legs 32a and 32b are preferably integrally formed using metal components. The second bracket 31 extends along the length direction D1. The two second supporting legs 32a and 32b are located at the front and rear ends of the second bracket 31, respectively, along the length direction D1. Along the height direction D3, the upper edge of the second bracket 31 is aligned with the upper edges of the two second supporting legs 32a and 32b, and the heights of the two second supporting legs 32a and 32b are equal to and greater than the height of the second bracket 31. Therefore, when the second tripod 3 is placed vertically on the ground, the two second supporting legs 32a and 32b first contact the ground, allowing the second bracket 31 to be suspended above the ground.

[0077] Therefore, when the assembled sofa assembly 100 is placed vertically on the ground, the two first supporting legs 22a, 22b of the first leg 2 and the two second supporting legs 32a, 32b of the second leg 3 will first contact the ground, thereby allowing the main structure 1 to be suspended above the ground.

[0078] Continuing with reference to Figures 5 to 7, the second leg 3 may further include at least one second fixing portion 33. The second fixing portion 33 is configured to fix the second leg 3 to the main structure 1. In an exemplary embodiment of the present invention, the second leg 3 includes two second fixing portions 33 arranged on the second bracket 31 at intervals along the length direction D1. The second fixing portions 33 are recessed from the outer side of the second leg 3 to the inner side thereof along the width direction D2, forming a recess on the outer side and a protrusion on the inner side. The outer side of the second leg 3 refers to the side of the second leg 3 away from the main structure 1 along the width direction D2. The inner side of the second leg 3 refers to the side of the second leg 3 closer to the main structure 1 along the width direction D2. Preferably, the outline of the second fixing portion 33 may be rectangular.

[0079] Furthermore, the two second fixing portions 33 are respectively a second upper fixing portion 33a near the second supporting leg 32a and a second lower fixing portion 33b near the second supporting leg 32b. The second upper fixing portion 33a intersects with the upper edge 34a of the second leg 3, thereby forming an opening at the upper edge 34a. Similarly, the second lower fixing portion 33b intersects with the lower edge 34b of the second leg 3, thereby also forming an opening at the lower edge 34b. The second upper fixing portion 33a and the second lower fixing portion 33b may also be provided with at least one through-hole for securing them to the main structure 1.

[0080] Preferably, the second fixing portion 33 may be disposed opposite to the first fixing portion 23 in the width direction D2.

[0081] The second leg 3 may also be provided with at least one reinforcing rib. This rib is recessed from the outside of the second leg 3 toward the inside along the width direction D2, forming a concave portion on the outside and a convex portion on the inside. Furthermore, the rib may extend along at least a portion of the second leg 3 along the length direction D1, along the height direction D3, or along a direction at an angle to the length direction D1. The shape of the rib may be linear, curved, bent, triangular, rectangular, polygonal, or other shapes.

[0082] As shown in the figure, the second leg 3 has reinforcing ribs 35a, 35b, and 35c. The reinforcing rib 35a is located at the junction of the second bracket 31 and the second support leg 32a, extending from the second support leg 32a to the second bracket 31 at an angle to the longitudinal direction D1. The reinforcing rib 35b extends along a portion of the second bracket 31 along the longitudinal direction D1. Preferably, the reinforcing rib 35b extends from a position near the second upper fixing portion 33a to near the second support leg 32b. Furthermore, the reinforcing rib 35b is located on a side of the second lower fixing portion 33b near the upper edge 34a. The reinforcing rib 35c is located at the junction of the second bracket 31 and the second support leg 32b, and extends substantially along the longitudinal direction D1 from the second support leg 32b to the second bracket 31.

[0083] Preferably, at least one of the two second supporting legs 32a, 32b may also be provided with reinforcing ribs.

[0084] 2 and 7 , the second leg 3 may further include at least one second connection portion 36 disposed along the width direction D2 opposite to the first connection portion 26. The first connection portion 26 and the second connection portion 36 may be configured to match in number and be detachably connected to each other.

[0085] For example, the second leg 3 may have two second connection parts 36 spaced apart along the length direction D1, one of the second connection parts 36 being located at the second supporting foot 32a, and the other second connection part 36 being located at the second supporting foot 32b.

[0086] As shown in Figure 8, the second connecting portion 36 comprises a head 361, a first rod 362, and a second rod 363, arranged in sequence along its length. The head 361, the first rod 362, and the second rod 363 can all be cylindrical. Furthermore, the diameter of the head 361 is larger than the diameter of the first rod 362. The diameter of the first rod 362 can also be larger than the diameter of the second rod 363, thereby forming a step 364 between the first and second rods 362, 363. The second rod 363 can also be provided with external threads (not shown) to mate with the fixing holes 39 on the second leg 3, thereby securing the second connecting portion 36 to the second leg 3. Preferably, the diameter of the head 361 of the second connecting portion 36 is larger than the width of the notch in the locking section 262 of the first connecting portion 26, to prevent the head 361 from passing through the locking section 262 along the width direction D2.

[0087] To facilitate understanding of the detachable connection between the first connecting portion 26 and the second connecting portion 36 , the process of connecting the second connecting portion 36 to the first connecting portion 26 and the process of removing the second connecting portion 36 from the first connecting portion 26 are exemplarily described below.

[0088] When connecting the second connecting portion 36 to the first connecting portion 26, the second connecting portion 36 is first placed above the first connecting portion 26. At this time, the first rod 362 of the second connecting portion 36 is aligned with the notch of the first connecting portion 26, and the head 361 of the second connecting portion 36 is located on the inner side of the first tripod 2; then, the first rod 362 is passed through the notch into the sliding section 261 and slides obliquely downward along the sliding section 261; finally, the first rod 362 is slid into the locking section 262, thereby completing the connection between the second connecting portion 36 and the first connecting portion 26.

[0089] The process of removing the second connecting portion 36 from the first connecting portion 26 is opposite to the above-mentioned connecting process, and will not be described again here.

[0090] By providing detachably connected first and second connecting portions 26, 36 on the first and second legs 2, 3 of the sofa assembly 100, respectively, adjacent sofa assemblies can be quickly connected and disconnected. Thus, the connection between two adjacent sofa assemblies can be easily completed by sliding the second connecting portion 36 into the first connecting portion 26. This simplifies the sofa assembly process, improves production efficiency, and reduces costs.

[0091] Furthermore, when the second connection portion 36 is connected in place, the stopper 263 in the first connection portion 26 can also prevent the second connection portion 36 from accidentally detaching from the first connection portion 26 or limit the second connection portion 36 from moving upward along the height direction D3 .

[0092] At the same time, when the first connecting portion 26 and the second connecting portion 36 are connected in place, the head portion 361 of the second connecting portion 36 is located inside the first leg 2. Because the diameter of the head portion 361 is larger than the size of the locking section 262, the head portion 361 can also limit the movement of the second connecting portion 36 relative to the first connecting portion 26 along the width direction D2. Thus, a secure connection between two adjacent sofa assemblies is ensured. Furthermore, the first leg 2 may further include at least one fixing hole 28, and the second leg 3 may further include at least one fixing hole 38 disposed opposite the at least one fixing hole 28 along the width direction D2. The fixing holes 28 and 38 are used to respectively connect the first leg 2 and the second leg 3 to the main structure 1. Preferably, the first leg 2 and the second leg 3 are connected to the anti-torsion tube of the main structure 1 via the fixing holes 28 and 38, respectively, to prevent the sofa assembly 100 from twisting.

[0093] Returning to Figures 1 to 6 , the sofa assembly 100 further includes a pair of back panel fixing members 5 and 5 '. The back panel fixing member 5 is secured to the inner side of the rear end of the first leg 2 via the mounting hole 27 provided on the first support leg 22b of the first leg 2, while the back panel fixing member 5 ' is secured to the inner side of the rear end of the second leg 3 via the mounting hole 37a provided on the second support leg 32b of the second leg 3. The back panel 4 is connected to the pair of back panel fixing members 5 and 5 ' at both ends along the width direction D2.

[0094] As shown in Figures 9 and 10, the back panel fixing member 5 comprises a middle portion 51 and a first bent section 52 and a second bent section 53 located at either end of the middle portion. The middle portion 51 is generally L-shaped. Specifically, the middle portion 51 comprises a horizontal section 511 and an inclined section 512. The horizontal section 511 may extend along the longitudinal direction D1 or at an angle to the longitudinal direction D1, while the inclined section 512 may extend along the height direction D3 or at an angle to the height direction D3. The inclined section 512 is located above or diagonally above the horizontal section 511. One end of the inclined section 512 is connected to one end of the horizontal section 511 to form an L-shape. The first bent section 52 is located at the other end of the horizontal section 511 and extends from this end along the width direction D2 for a distance. The second bent section 53 is located at the other end of the inclined section 512 and extends from this end along the width direction D2 for a distance in the same direction as the first bent section 52. Furthermore, the angle between the horizontal section 511 and the inclined section 512 of the middle portion 51 can be equal to or greater than 90 degrees. As shown in the figure, as an example, the horizontal section 511 extends in a direction forming an acute angle with the longitudinal direction D1, and the inclined section 512 extends in a direction forming an obtuse angle with the longitudinal direction D1. Furthermore, the angle between the horizontal section 511 and the inclined section 512 is greater than 90 degrees.

[0095] The middle portion 51 is also provided with at least one tripod mounting hole 513 for connecting the back panel fixing member 5 to the first tripod 2. The tripod mounting hole 513 can correspond one-to-one with the mounting hole 27 on the first tripod 2. As shown in the figure, there are two tripod mounting holes 513, located respectively on the horizontal section 511 and the inclined section 512 of the middle portion 51.

[0096] The middle portion 51 may also be provided with at least one reinforcing rib 514. The reinforcing rib 514 is recessed from the outside of the back panel fixing member 5 toward the inside thereof along the width direction D2, forming a recess on the outside and a protrusion on the inside. Furthermore, the reinforcing rib 514 may extend along at least a portion of the middle portion 51 along the length direction D1, along the height direction D3, or along a direction at an angle to the length direction D1. The shape of the reinforcing rib 514 may be linear, bent, curved, triangular, rectangular, polygonal, or other shapes. As shown in the figure, as an example, the middle portion 51 has a reinforcing rib 514 disposed on the inclined section 512. The reinforcing rib 514 is triangular in shape.

[0097] The backplate fixing member 5 further has at least one main structure mounting hole 521 disposed on the first bent section 52 and at least one backplate mounting hole 531 disposed on the second bent section 53. The main structure mounting hole 521 is used to connect the backplate fixing member 5 to the main structure 1. The backplate mounting hole 531 is used to connect the backplate fixing member 5 to the backplate 4. Consequently, the backplate fixing member 5 integrally connects the main structure 1, the first leg 2, and the backplate 4. As shown in the figure, in an exemplary embodiment of the present invention, there is one main structure mounting hole 521. There are two backplate mounting holes 531, spaced apart on the second bent section 53.

[0098] The back panel fixing member 5' has a similar structure and shape to the back panel fixing member 5, and the two are symmetrical or mirror images of each other in the width direction D2. The back panel fixing member 5' connects the main structure 1, the second leg 3, and the back panel 4 into a single unit. It should be understood that all features and variations described above for the back panel fixing member 5 are also applicable to the back panel fixing member 5'. Therefore, they will not be described in detail here.

[0099] The first side sofa assembly 200 and the second side sofa assembly 300 provided by the present invention will be described below by way of example. Those skilled in the art should understand that all features and variations thereof described in the exemplary embodiment of the sofa assembly 100 described above can be applied to the first side sofa assembly 200 and the second side sofa assembly 300 to be described below. As shown in Figures 11 and 12, the present invention also provides a first side sofa assembly 200, which includes a main body structure 1, a first leg 2, a second leg 3 and a back panel 4. The first side sofa assembly 200 has a similar structure to the above-mentioned sofa assembly 100. The main difference between the two is that the second connecting portion 36 is not provided on the second leg 3 of the first side sofa assembly 200, as shown in Figures 5, 6 and 12.

[0100] Specifically, the first leg 2 and the second leg 3 are disposed on either side of the main structure 1 along the width direction D2 and are respectively connected to the main structure 1. The back plate 4 is disposed between the first leg 2 and the second leg and is located at the rear B of the main structure 1, and is respectively connected to the rear ends of the first leg 2 and the second leg 3.

[0101] Referring to Figures 3 to 6 , the first leg 2 includes a first bracket 21 extending along the longitudinal direction D1 and two first supporting legs 22a and 22b located at the front and rear ends of the first bracket 21, respectively, along the longitudinal direction D1. The first leg 2 also includes two first fixing portions 23 spaced apart along the longitudinal direction D1 on the first bracket 21. Also disposed along the longitudinal direction D1 are two first connecting portions 26 configured to be detachably connected to the second connecting portions 36 of adjacent sofa components.

[0102] The second leg 3 includes a second bracket 31 extending along the longitudinal direction D1 and two second supporting legs 32a and 32b located at the front and rear ends of the second bracket 31 along the longitudinal direction D1. The second leg 3 also includes two second fixing portions 33 provided on the second bracket 31 at intervals along the longitudinal direction D1.

[0103] Each of the first and second legs 2 and 3 may also be provided with at least one reinforcing rib. This rib is recessed from the outside of the first or second legs 2 or 3 toward the inside along the width direction D2, forming a concave portion on the outside and a convex portion on the inside. Furthermore, the rib may extend along at least a portion of the first or second legs 2 or 3 along the length direction D1, along the height direction D3, or along a direction at an angle to the length direction D1. The rib may be linear, bent, curved, triangular, rectangular, polygonal, or other shapes.

[0104] The first connecting portion 26 includes a slide-in section 261 and a locking section 262. The slide-in section 261 extends from the opening at the upper edge 24a toward the interior of the first supporting leg 22a or the first supporting leg 22b at an angle relative to the height direction D3. After extending for a certain distance, it changes direction and continues to extend along the height direction D3, thereby forming a locking section 262 located below the slide-in section 261. The slide-in section 261 and the locking section 262 are connected to each other. Furthermore, the width of the notch formed by the slide-in section 261 can be larger than the width of the notch formed by the locking section 262, so that the second connecting portion 36 of the adjacent sofa assembly can more easily enter the slide-in section 261.

[0105] The first connecting portion 26 may further include a stopper 263. The stopper 263 may be disposed in the transition region between the slide-in section 261 and the locking section 262. The stopper 263 may be a protrusion extending along the length direction D1 and configured to reduce the width of the gap in the transition region between the slide-in section 261 and the locking section 262.

[0106] By providing a first connecting portion 26 on one side of the first side sofa assembly 200, it can be quickly connected and disconnected from the second connecting portion 36 of the adjacent sofa assembly. Thus, the connection between the two adjacent sofa assemblies can be easily completed by sliding the second connecting portion 36 along the sliding section 261 of the first connecting portion 26 into the locking section 262. This simplifies the sofa assembly process, improves production efficiency, and reduces costs.

[0107] Furthermore, when the second connection portion 36 is connected in place, the stopper 263 in the first connection portion 26 can also prevent the second connection portion 36 from accidentally detaching from the first connection portion 26 or limit the second connection portion 36 from moving upward along the height direction D3 .

[0108] The first side sofa assembly 200 may further include other back panel fixing members having shapes different from the above-mentioned back panel fixing members 5 and 5 ′.

[0109] For example, as shown in the figure, the first side sofa assembly 200 includes a back panel fixing member 6 and a back panel fixing member 5 as described in the exemplary embodiment of sofa assembly 100. The back panel fixing member 5 is fixed to the inner side of the rear end of the first leg 2 via the mounting hole 27 provided on the first support leg 22b of the first leg 2, while the back panel fixing member 6 is fixed to the outer side of the rear end of the second leg 3 via the mounting holes 37a and 37b provided on the second support leg 32b of the second leg 3. The back panel 4 is connected to the back panel fixing member 5 and the back panel fixing member 6 at both ends along the width direction D2, respectively. The back panel fixing member 6 not only serves to connect the back panel 4 but also enhances the aesthetics of the sofa when the sofa assembly 200 is arranged at the outermost side of the entire sofa.

[0110] As shown in Figures 13 and 14, the back panel fixture 6 comprises a main body 61 and a bent section 62. The main body 61 is generally flat, and the bent section 62 is connected to a portion of the main body 61's profile and extends a distance along the width direction D2. The main body 61 comprises a vertical section 611 extending generally along the height direction D3, and an inclined section 612 arranged at an angle relative to the vertical section 611. One end of the vertical section 611 is connected to one end of the inclined section 612. The bent section 62 is located at least partially along the other end of the inclined section 612.

[0111] The main body 61 is also provided with at least one tripod mounting hole 613 for connecting the backplate fixing member 6 to the second tripod 3. The tripod mounting hole 613 can correspond one-to-one with the mounting holes 37a and 37b on the second tripod 3. The main body 61 can also be provided with at least one reinforcing rib 614. The reinforcing rib 614 is recessed from the outer side of the backplate fixing member 6 to the inner side along the width direction D2, forming a recess on the outer side and a protrusion on the inner side. Furthermore, the reinforcing rib 614 can extend along at least a portion of the main body 61 along the length direction D1, along the height direction D3, or along a direction at an angle to the length direction D1. The shape of the reinforcing rib 614 can be straight, bent, curved, triangular, rectangular, polygonal, or other shapes. As shown in the figure, as an example, one reinforcing rib 614 extends from the vertical section 611 of the main body 61 to the inclined section 612 along a direction at an angle to the height direction D3. The reinforcing rib 614 is straight. Preferably, the extending direction of the reinforcing rib 614 is consistent with the inclination direction of the inclined section 612 relative to the vertical section 611 .

[0112] The backplate fixing member 6 also has at least one backplate mounting hole 621 disposed on the bent section 62. This backplate mounting hole 621 is used to connect the backplate fixing member 6 to the backplate 4, thereby integrally connecting the second leg 3 and the backplate 4. As shown, there are two backplate mounting holes 621, spaced apart on the bent section 62.

[0113] Returning to Figure 12 , the first side sofa assembly 200 may include, in addition to the back panel fixing members 5 and 6, a decorative member 7. The decorative member 7 is secured to the front outer side of the second leg 3 via the mounting hole 37c provided on the second support leg 32a of the second leg 3. The decorative member 7 can be used to conceal the fixing hole 39 when the second leg 3 is not provided with the second connecting portion 36, thereby enhancing the aesthetics of the sofa assembly.

[0114] Referring now to Figures 15 and 16 , the decorative member 7 is flat and generally L-shaped. It includes a horizontal section 71 extending along a lengthwise direction D1 and a vertical section 72 extending generally along a heightwise direction D3 or at an angle to the heightwise direction D3. The angle between the horizontal section 71 and the vertical section 72 can be less than 90 degrees, equal to 90 degrees, or greater than 90 degrees. Preferably, the angle between the horizontal section 71 and the vertical section 72 is less than 90 degrees.

[0115] The decorative member 7 is provided with at least one stand mounting hole 73 for connecting the decorative member 7 to the second stand 3. As shown in the figure, the decorative member 7 has three stand mounting holes 73 that can correspond one-to-one with the mounting holes 37c of the second stand 3.

[0116] As shown in Figures 17 and 18 , the present invention further provides a second side sofa assembly 300, which includes a main body structure 1, a first leg 2, a second leg 3, and a back panel 4. The second side sofa assembly 300 has a similar structure to the aforementioned sofa assembly 100, the main difference between the two being that the first leg 2 of the second side sofa assembly 300 does not have the first connecting portion 26.

[0117] Specifically, the first leg 2 and the second leg 3 are disposed on both sides of the main structure 1 along the width direction D2 and are respectively connected to the main structure 1. The back plate 4 is disposed between the first leg 2 and the second leg 3 and is located at the rear B of the main structure 1, and the back plate 4 is respectively connected to the rear ends of the first leg 2 and the rear ends of the second leg 3.

[0118] Referring to Figures 3 to 7 simultaneously, the first tripod 2 includes a first bracket 21 extending along the longitudinal direction D1 and two first supporting legs 22a and 22b located at the front and rear ends of the first bracket 21, respectively, along the longitudinal direction D1. The first tripod 2 also includes two first fixing portions 23 disposed on the first bracket 21 at intervals along the longitudinal direction D1. The second tripod 3 includes a second bracket 31 extending along the longitudinal direction D1 and two second supporting legs 32a and 32b located at the front and rear ends of the second bracket 31, respectively, along the longitudinal direction D1. The second tripod 3 also includes two second fixing portions 33 disposed on the second bracket 31 at intervals along the longitudinal direction D1.

[0119] Each of the first and second legs 2 and 3 may also be provided with at least one reinforcing rib. This rib is recessed from the outside of the first or second legs 2 or 3 toward the inside along the width direction D2, forming a concave portion on the outside and a convex portion on the inside. Furthermore, the rib may extend along at least a portion of the first or second legs 2 or 3 along the length direction D1, along the height direction D3, or along a direction at an angle to the length direction D1. The rib may be linear, bent, curved, triangular, rectangular, polygonal, or other shapes.

[0120] Preferably, the first tripod 2 may have a structure and shape similar to that of the second tripod 3. For example, the first tripod 2 is symmetrical or mirror-imaged relative to the second tripod 3 in the width direction D2.

[0121] Along the length direction D1, the second leg 3 is further provided with two second connecting portions 36 configured to be detachably connected to the first connecting portions 26 of adjacent sofa components. As shown in Figure 8, the second connecting portion 36 comprises a head 361, a first rod 362, and a second rod 363, arranged in sequence along its length. The head 361, the first rod 362, and the second rod 363 can all be cylindrical in shape. Furthermore, the diameter of the head 361 is larger than that of the first rod 362. The diameter of the first rod 362 can also be larger than that of the second rod 363, thereby forming a step 364 between the first and second rods 362, 363. The second rod 363 can also be provided with external threads to mate with the fixing holes 39 on the second leg 3, thereby securing the second connecting portion 36 to the second leg 3. The diameter of the head portion 361 of the second connecting portion 36 is greater than the width of the notch of the locking section 262 of the first connecting portion 26 to prevent the head portion 361 from passing through the locking section 262 along the width direction D2. The second side sofa assembly 300 may also include a backboard fixing member 5' as described in the exemplary embodiment of the sofa assembly 100, which is disposed on the second supporting leg 32b of the second leg frame 3 and is used to connect the main structure 1 and the backboard 4.

[0122] The second side sofa assembly 300 may also include a back panel fixing member 6' and a decorative member 7'. The back panel fixing member 6' and the decorative member 7' may have structures and shapes similar to the back panel fixing member 6 and the decorative member 7 described in the exemplary embodiment of the first side sofa assembly 200, respectively. The main differences are that the back panel fixing member 6' is symmetrical or a mirror image of the back panel fixing member 6 along the width direction D2, and the decorative member 7' is symmetrical or a mirror image of the decorative member 7 along the width direction D2.

[0123] By providing a second connecting portion 36 on one side of the second side sofa assembly 300, it can be quickly connected and disconnected from the first connecting portion 26 of the adjacent sofa assembly. Thus, the connection between two adjacent sofa assemblies can be easily completed by sliding the second connecting portion 36 along the sliding section 261 of the first connecting portion 26 of the adjacent sofa assembly into the locking section 262. This simplifies the sofa assembly process, improves production efficiency, and reduces costs.

[0124] In addition, the present invention also provides a sofa, which includes a first side sofa component 200 and a second side sofa component 300 .

[0125] The first side sofa assembly 200 and the second side sofa assembly 300 are arranged side by side and closely together along the width direction D2. The first connecting portion 26 of the first side sofa assembly 200 and the second connecting portion 36 of the second side sofa assembly 300 are detachably connected to install the first side sofa assembly 200 and the second side sofa assembly 300 together.

[0126] Preferably, the sofa may further include at least one sofa component 100 .

[0127] The first side sofa assembly 200, the at least one sofa assembly 100, and the second side sofa assembly 300 are arranged side by side and closely together along the width direction D2. The first connecting portion 26 of the first side sofa assembly 200 is detachably connected to the second connecting portion 36 of the sofa assembly 100, and the second connecting portion 36 of the second side sofa assembly 300 is detachably connected to the first connecting portion 26 of the sofa assembly 100. Thus, the first side sofa assembly 200, the at least one sofa assembly 100, and the second side sofa assembly 300 are mounted together along the width direction D2.

[0128] When the sofa comprises a plurality of sofa assemblies 100, the plurality of sofa assemblies 100 are sequentially connected side by side and arranged between the first side sofa assembly 200 and the second side sofa assembly 300. Among them, in two adjacent sofa assemblies 100, the first connecting portion 26 of one sofa assembly 100 is detachably connected to the second connecting portion 36 of the other sofa assembly 100.

[0129] By providing a first connecting portion 26 or a second connecting portion 36 on a side sofa assembly, it can be connected to the central sofa assembly 100, thereby forming a complete sofa. The first connecting portion 26 or the second connecting portion 36 on the first side sofa assembly 200 or the second side sofa assembly 300 allows them to be quickly connected to the adjacent sofa assembly 100, thereby completing the assembly of the entire sofa. This effectively simplifies the sofa assembly process, improves production efficiency, and reduces labor costs.

[0130] In addition, since a variety of sofa components with different structures are provided, the type and quantity of sofa components can be selected according to different needs, and then multiple sofa components can be combined into sofas of different lengths to meet different needs.

[0131] The above description of various embodiments of the present invention is provided for the purpose of description to one of ordinary skill in the relevant art. It is not intended to exclude or limit the present invention to a single disclosed embodiment. As above, a person of ordinary skill in the field of the above teachings will understand the various substitutions and variations of the present invention. Therefore, although some alternative embodiments are specifically described, a person of ordinary skill in the art will understand or relatively easily develop other embodiments. The present invention is intended to include all substitutions, modifications and variations of the present invention described herein, as well as other embodiments that fall within the spirit and scope of the present invention described above.

Claims

1. A sofa assembly (100), characterized in that: The sofa assembly (100) comprises a main structure (1), a first leg frame (2), a second leg frame (3) and a backboard (4); the first leg frame (2) and the second leg frame (3) are arranged on both sides of the main structure (1) along a width direction (D2) and are respectively connected to the main structure (1); the backboard (4) is arranged between the first leg frame (2) and the second leg frame (3) and is respectively connected to the rear end of the first leg frame (2) and the rear end of the second leg frame (3); The first tripod (2) comprises a first bracket (21) and two first supporting legs (22a, 22b), the two first supporting legs (22a, 22b) are respectively arranged at two ends of the first bracket (21) along a length direction (D1), and the first tripod (2) is provided with at least one first connecting portion (26); And wherein the second tripod (3) comprises a second bracket (31) and two second supporting legs (32a, 32b), the two second supporting legs (32a, 32b) being respectively arranged at two ends of the second bracket (31) along a length direction (D1), and the second tripod (3) is provided with at least one second connecting portion (36).

2. The sofa assembly (100) according to claim 1, characterized in that: The first leg frame (2) and the second leg frame (3) are selected from one or more of metal parts, blow-molded parts, injection-molded parts, extruded parts, and wood-plastic parts.

3. The sofa assembly (100) according to claim 1 or 2, characterized in that: The at least one first connecting portion (26) is a notch.

4. The sofa assembly (100) according to claim 3, characterized in that: The notch has a sliding section (261) and a locking section (262).

5. The sofa assembly (100) according to claim 4, characterized in that: The notch also has a stopper (263).

6. The sofa assembly (100) according to claim 1 or 2, characterized in that: The at least one second connecting portion (36) is detachably mounted on the second stand (3).

7. The sofa assembly (100) according to claim 6, characterized in that: The at least one second connection portion (36) is configured to be detachably connected to at least one first connection portion (26) of an adjacent sofa assembly.

8. The sofa assembly (100) according to claim 1 or 2, characterized in that: The first tripod (2) has at least one first fixing portion (23), and the second tripod (3) has at least one second fixing portion (33).

9. A first side sofa assembly (200), characterized in that: The first side sofa assembly (200) comprises a main body structure (1), a first leg frame (2), a second leg frame (3) and a backboard (4); the first leg frame (2) and the second leg frame (3) are arranged on both sides of the main body structure (1) along a width direction (D2) and are respectively connected to the main body structure (1); the backboard (4) is arranged between the first leg frame (2) and the second leg frame (3) and is respectively connected to the rear end of the first leg frame (2) and the rear end of the second leg frame (3); The first tripod (2) comprises a first bracket (21) and two first supporting legs (22a, 22b), wherein the two first supporting legs (22a, 22b) are respectively arranged at two ends of the first bracket (21) along a length direction (D1), and the first tripod (2) is also provided with at least one first connecting portion (26); And wherein the second tripod (3) comprises a second bracket (31) and two second supporting legs (32a, 32b), and the two second supporting legs (32a, 32b) are respectively arranged at two ends of the second bracket (31) along the length direction (D1).

10. The first side sofa assembly (200) according to claim 9, characterized in that: The at least one first connecting portion (26) is a notch.

11. The first side sofa assembly (200) according to claim 10, characterized in that: The notch has a sliding section (261) and a locking section (262).

12. The first side sofa assembly (200) according to claim 11, characterized in that: The notch also has a stopper (263).

13. The first side sofa assembly (200) according to any one of claims 9 to 12, characterized in that: The first tripod (2) has at least one first fixing portion (23), and the second tripod (3) has at least one second fixing portion (33).

14. The first side sofa assembly (200) according to any one of claims 9 to 12, characterized in that: The at least one first connection portion (26) is configured to be detachably connected to at least one second connection portion (36) of an adjacent sofa assembly.

15. A second side sofa assembly (300), characterized in that: The second side sofa assembly (300) comprises a main body structure (1), a first leg frame (2), a second leg frame (3) and a backboard (4); the first leg frame (2) and the second leg frame (3) are arranged on both sides of the main body structure (1) along a width direction (D2) and are respectively connected to the main body structure (1); the backboard (4) is arranged between the first leg frame (2) and the second leg frame (3) and is respectively connected to the rear end of the first leg frame (2) and the rear end of the second leg frame (3); The first tripod (2) comprises a first bracket (21) and two first supporting legs (22a, 22b), wherein the two first supporting legs (22a, 22b) are respectively arranged at two ends of the first bracket (21) along a length direction (D1); And wherein the second tripod (3) comprises a second bracket (31) and two second supporting legs (32a, 32b), the two second supporting legs (32a, 32b) are respectively arranged at two ends of the second bracket (32) along the length direction (D1), and the second bracket (32) is also provided with at least one second connecting portion (36).

16. The second side sofa assembly (300) according to claim 15, characterized in that: The at least one second connecting portion (36) is detachably mounted on the second stand (3).

17. The second side sofa assembly (300) according to claim 15 or 16, characterized in that: The at least one second connection portion (36) is configured to be detachably connected to at least one first connection portion (26) of an adjacent sofa assembly.

18. The second side sofa assembly (300) according to claim 15 or 16, characterized in that: The first tripod (2) has at least one first fixing portion (23), and the second tripod (3) has at least one second fixing portion (33).

19. A sofa, characterized in that: The sofa comprises a first side sofa component (200) according to any one of claims 9 to 14 and a second side sofa component (300) according to any one of claims 15 to 18; The first side sofa assembly (200) and the second side sofa assembly (300) are arranged side by side and closely together along the width direction (D2), and the first connecting portion (26) of the sofa assembly (200) is detachably connected to the second connecting portion (36) of the second side sofa assembly (300).

20. The sofa according to claim 19, characterized in that: One or more sofa assemblies (100) according to any one of claims 1 to 8 are further included between the first side sofa assembly (200) and the second side sofa assembly (300); The first side sofa assembly (200), one or more sofa assemblies (100) and the second side sofa assembly (300) are arranged side by side in sequence along the width direction (D2), and each sofa assembly is detachably connected via a first connecting portion (26) and a second connecting portion (36).

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