A multi-seat modular compression sofa
The modular design of the multi-seat combination compression sofa solves the problem of large space occupation of multi-seat sofas, increases packing capacity and reduces transportation costs, and allows for flexible combination of seating units.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-04
AI Technical Summary
Multi-seat modular sofas take up a lot of space, resulting in low packing volume and increased transportation costs.
It adopts a modular design, including seat frame, side support frame, extension component, backrest frame and power unit, which are packaged in modular form. The seat unit can be detached and connected, and the extension component is driven to unfold or retract by the power unit.
It greatly reduces packing space, increases packing capacity, lowers transportation costs, and can be combined into sofas with different seating arrangements as needed.
Smart Images

Figure CN224584452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of home furnishing manufacturing, and in particular to a multi-seat combination compression sofa. Background Technology
[0002] Sofas take up a lot of space after assembly, especially multi-seat sectional sofas, which take up even more space, seriously affecting the amount of product that can be packed and increasing transportation costs. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-seat combination compression sofa that can increase the packing capacity and thus reduce transportation costs.
[0004] To achieve the above objectives, the technical solution adopted by this utility model of a multi-seat combination compression sofa is as follows:
[0005] A multi-seat combination compression sofa includes several seat units that can be assembled side by side. Each seat unit includes a seat frame, side support frames that are detachably connected to both sides of the seat frame, extension components located below the seat frame that are detachably connected to the inner side of the side support frames, a backrest frame that is detachably connected between the tail ends of two extension components, and a power device for driving the extension components to unfold or retract that is detachably connected between two side support frames.
[0006] Preferably, the bottom of the side support frame is detachably connected to multiple support legs.
[0007] Preferably, the support feet at the bottom of the side support frame on the side are inclined support feet, each including an inclined tube. The top surface of the inclined tube is provided with a narrow groove bracket, which is clamped on the outside of the side support frame and detachably connected by a bolt assembly. The support feet at the bottom of the adjacent side support frame are straight support feet, each including a straight tube. The top surface of the straight tube is provided with a wide groove bracket, which is clamped on the outside of two adjacent side support frames and detachably connected by a bolt assembly.
[0008] Preferably, the side support frame located on the side is detachably connected to a handrail frame.
[0009] Preferably, the inner wall of the handrail frame is provided with multiple male buckles, and the outer wall of the side support frame located on the side is provided with multiple female buckles. The male and female buckles are inserted one-to-one to quickly install the handrail frame on the outer side of the side support frame located on the side.
[0010] Preferably, the extension assembly includes a front mounting plate and a rear mounting plate. The front mounting plate is detachably mounted on the front side of the top of the side support frame. A leg mechanism is provided on the front mounting plate. The leg mechanism includes a leg link one and a leg link two. The rear end of leg link one is pivotally connected to the front side of the front mounting plate, the front end of leg link one is pivotally connected to leg link three, the rear end of leg link two is pivotally connected to the rear side of the front mounting plate, the front end of leg link two is pivotally connected to leg link four, the middle part of leg link four is pivotally connected to the middle part of leg link one, the front end of leg link four is pivotally connected to leg link five, and the middle part of leg link five is pivotally connected to... The middle part of the leg link three is connected to the front end of the leg link five, which is pivotally connected to the leg link six. The front end of the leg link six is pivotally connected to the footrest mounting plate. The middle part of the footrest mounting plate is pivotally connected to the leg link six, and the rear end of the footrest mounting plate is pivotally connected to the front end of the leg link three. The rear mounting plate is detachably installed on the rear side of the top of the side support frame. The rear mounting plate is provided with a backrest mechanism, which includes a backrest mounting plate pivotally connected to the rear mounting plate. The bottom of the backrest mounting plate is pivotally connected to a backrest linkage rod, the rear end of the backrest linkage rod is pivotally connected to the backrest mounting plate, and the front end of the backrest linkage rod is pivotally connected to the rear part of the leg link two.
[0011] Preferably, the backrest frame is provided with snap fasteners on both sides for quick connection with the backrest mounting plate.
[0012] Preferably, the power unit includes a support rod located between two side supports. The two ends of the support rod are detachably connected to the corresponding side supports by bolts. A push rod motor is provided in the middle of the support rod. The housing of the push rod motor is hinged to the support rod. The telescopic rod of the push rod motor is hinged to a drive rod. The two ends of the drive rod are detachably connected to the corresponding leg connecting rods.
[0013] Compared with the prior art, this utility model has the following advantages:
[0014] 1. The seat frame, side support frame, extension assembly, backrest frame, and power unit are all packaged in a modular form, which greatly reduces the packing space, thereby increasing the packing volume and reducing transportation costs.
[0015] 2. Seating units can be combined as needed to form single seats, double seats, triple seats, etc. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of the multi-seat combination compression sofa of this utility model.
[0017] Figure 2 This is a schematic diagram of the installation of the extension assembly and side support frame.
[0018] Figure 3 This is a schematic diagram of the extension component.
[0019] Figure 4This is a diagram showing the installation of the mounting frame.
[0020] Figure 5 This is a schematic diagram of the power unit installation.
[0021] Figure 6 This is a schematic diagram of the installation of the diagonal brace.
[0022] Figure 7 This is a schematic diagram of the installation of the straight support leg.
[0023] Figure 8 This is a diagram illustrating the installation of the handrail frame.
[0024] Figure 9 This is a diagram showing the installation of the backrest frame.
[0025] Figure 10 This is a diagram showing the transition from a three-person to a two-person seating arrangement.
[0026] Figure 11 This is a diagram showing the state of a two-person seat changing to a one-person seat.
[0027] The components include: 1. Seat frame; 2. Side support frame; 21. Female snap fastener; 3. Support leg; 31. Inclined tube fitting; 32. Narrow slot bracket; 33. Straight tube fitting; 34. Wide slot bracket; 4. Handrail frame; 41. Male snap fastener; 5. Extension assembly; 51. Front mounting plate; 52. Rear mounting plate; 53. Leg mechanism; 531. Leg link one; 532. Leg link two; 533. Leg link three; 534. Leg link four; 535. Leg link five; 536. Leg link six; 537. Footrest mounting plate; 54. Backrest mechanism; 541. Backrest mounting plate; 542. Backrest linkage rod; 6. Backrest frame; 61. Snap fastener; 7. Power unit; 71. Support rod; 72. Push rod motor; 73. Drive rod. Detailed Implementation
[0028] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.
[0029] like Figure 1-11As shown, a multi-seat modular compression sofa includes three seat units that can be assembled side by side. Each seat unit includes a seat frame 1. Side support frames 2 are detachably connected to the left and right sides of the seat frame 1 via bolts. Support legs 3 are installed on the front and rear sides of the bottom of the side support frames 2. The support legs at the bottom of the side support frames 2 on the side are inclined support legs, each including an inclined tube 31. A narrow groove bracket 32 is welded to the top surface of the inclined tube, clamping the narrow groove bracket 32 to the outside of the side support frame 2 and detachably connected via bolt assemblies. The support legs at the bottom of adjacent side support frames 2 are straight support legs, each including a straight tube 33. A wide groove bracket 34 is welded to the top surface of the straight tube, clamping the wide groove bracket 34 to the outside of two adjacent side support frames 2 and detachably connected via bolt assemblies. The straight tube connects the two adjacent side support frames 2... The support frame 2 is connected as a whole. The side support frame 2 located on the side is detachably connected to the handrail frame 4. Two male buckles 41 are installed on the inner wall of the handrail frame, and two female buckles 21 are installed on the outer wall of the side support frame 2 located on the side. The male buckles 41 and female buckles 21 are inserted one-to-one to quickly install the handrail frame 4 on the outer side of the side support frame 2 located on the side. The inner side of the side support frame 2 is detachably connected to the extension assembly 5 located below the seat frame 1. The extension assembly 5 includes a front mounting plate 51 and a rear mounting plate 52. The front mounting plate is detachably installed on the front side of the top of the side support frame 2 by bolts. The leg mechanism 53 is installed on the front mounting plate. The leg mechanism 53 includes a leg link 1 531 and a leg link 2 532. The rear end of the leg link 1 531 is pivotally connected to the front side of the front mounting plate 51. The front end of rod 1 531 is pivotally connected to leg link 3 533; the rear end of leg link 2 532 is pivotally connected to the rear side of the front mounting plate 51; the front end of leg link 2 532 is pivotally connected to leg link 4 534; the middle part of leg link 4 534 is pivotally connected to the middle part of leg link 1 531; the front end of leg link 4 534 is pivotally connected to leg link 535; the middle part of leg link 535 is pivotally connected to the middle part of leg link 3 533; the front end of leg link 535 is pivotally connected to leg link 6 536; the front end of leg link 6 536 is pivotally connected to footrest mounting plate 537; the middle part of footrest mounting plate 537 is pivotally connected to leg link 6 536; the rear end of footrest mounting plate 537 is pivotally connected to the front end of leg link 3 533; and the rear mounting plate 52 is connected by bolts. A backrest mechanism 54 is detachably mounted on the rear side of the top of the side support frame 2. The backrest mechanism 54 includes a backrest mounting plate 541 pivotally connected to the rear mounting plate 52. A backrest linkage rod 542 is pivotally connected to the bottom of the backrest mounting plate 541. The rear end of the backrest linkage rod 542 is pivotally connected to the backrest mounting plate 541, and the front end of the backrest linkage rod 542 is pivotally connected to the rear of the leg link 532. A backrest frame 6 is detachably connected between the tops of the two backrest mounting plates 541. Plug-in buckles 61 that quickly connect to the backrest mounting plates 541 are mounted on both sides of the backrest frame 6. A power unit 7 for driving the extension assembly 5 to unfold or retract is detachably connected between the two side support frames 2. The power unit 7 includes a support rod 71 located between the two side support frames 2.Both ends of the support rod 71 are detachably connected to the corresponding side support frame 2 via bolts. A push rod motor 72 is installed in the middle of the support rod 71. The housing of the push rod motor is hinged to the support rod. The telescopic rod of the push rod motor is hinged to a drive rod 73. Both ends of the drive rod are detachably connected to the corresponding leg connecting rod 2.
[0030] The specific working process and principle of this multi-seat modular compression sofa are as follows: The seat frame, side support frame, extension assembly, backrest frame, power unit, support legs, and armrest frame are all packaged in a modular form, which greatly reduces the packing space, thereby increasing the packing capacity and reducing transportation costs. After receiving the goods, the customer can first install the extension assembly on the inside of the side support frame, then install the power unit between the two side support frames, and install the seat frame on the top of the side support frame. Straight support legs are used to fix two adjacent side support frames together, and diagonal support legs are installed at the bottom of the side support frames to ensure the stability of the sofa. Finally, the armrest frame and backrest frame are installed. The operation is very convenient.
[0031] This embodiment is a three-seater sofa. Based on this sofa, it can also be assembled into a single-seater or double-seater sofa as needed. Similarly, as the number of seating units increases, it can be combined into a sofa with more seats, making it flexible and versatile.
Claims
1. A multi-seat combination compression sofa, characterized in that: It includes several seat units that can be assembled side by side. Each seat unit includes a seat frame, with side supports detachably connected to both sides of the seat frame. An extension component located below the seat frame is detachably connected to the inside of the side supports. A backrest frame is detachably connected between the tail ends of two extension components. A power device for driving the extension components to unfold or retract is detachably connected between the two side supports.
2. The multi-seat combination compression sofa according to claim 1, characterized in that: The bottom of the side support frame is detachably connected to multiple support legs.
3. The multi-seat combination compression sofa according to claim 2, characterized in that: The support legs at the bottom of the side support frame located on the side are inclined support legs. The inclined support legs include inclined tubes. The top surface of the inclined tubes is provided with narrow groove brackets. The narrow groove brackets are clamped on the outside of the side support frame and are detachably connected by bolt assemblies. The support legs at the bottom of the adjacent side support frames are straight support legs. The straight support legs include straight tubes. The top surface of the straight tubes is provided with wide groove brackets. The wide groove brackets are clamped on the outside of the two adjacent side support frames and are detachably connected by bolt assemblies.
4. The multi-seat combination compression sofa according to claim 3, characterized in that: The side support frame located on the side is detachably connected to the handrail frame.
5. The multi-seat combination compression sofa according to claim 4, characterized in that: The inner wall of the handrail frame is provided with multiple male buckles, and the outer wall of the side support frame located on the side is provided with multiple female buckles. The male and female buckles are inserted one by one to quickly install the handrail frame on the outside of the side support frame located on the side.
6. The multi-seat combination compression sofa according to claim 1, characterized in that: The extension assembly includes a front mounting plate and a rear mounting plate. The front mounting plate is detachably mounted on the front side of the top of the side support frame. A leg mechanism is provided on the front mounting plate. The leg mechanism includes a leg link one and a leg link two. The rear end of leg link one is pivotally connected to the front side of the front mounting plate, the front end of leg link one is pivotally connected to leg link three, the rear end of leg link two is pivotally connected to the rear side of the front mounting plate, the front end of leg link two is pivotally connected to leg link four, the middle part of leg link four is pivotally connected to the middle part of leg link one, the front end of leg link four is pivotally connected to leg link five, and the middle part of leg link five is pivotally connected to... The middle part of leg link three and the front end of leg link five are pivotally connected to leg link six. The front end of leg link six is pivotally connected to a footrest mounting plate. The middle part of the footrest mounting plate is pivotally connected to leg link six. The rear end of the footrest mounting plate is pivotally connected to the front end of leg link three. The rear mounting plate is detachably installed on the rear side of the top of the side support frame. The rear mounting plate is provided with a backrest mechanism. The backrest mechanism includes a backrest mounting plate pivotally connected to the rear mounting plate. The bottom of the backrest mounting plate is pivotally connected to a backrest linkage rod. The rear end of the backrest linkage rod is pivotally connected to the backrest mounting plate. The front end of the backrest linkage rod is pivotally connected to the rear part of leg link two.
7. The multi-seat combination compression sofa according to claim 6, characterized in that: The backrest frame is provided with snap-fit fasteners on both sides for quick connection with the backrest mounting plate.
8. The multi-seat combination compression sofa according to claim 6, characterized in that: The power unit includes a support rod located between two side supports. The two ends of the support rod are detachably connected to the corresponding side supports by bolts. A push rod motor is installed in the middle of the support rod. The housing of the push rod motor is hinged to the support rod. The telescopic rod of the push rod motor is hinged to a drive rod. The two ends of the drive rod are detachably connected to the corresponding leg connecting rods.