Zipper type assembled sofa
The zipper-style assembly design solves the problems of transporting assembled sofas and the misalignment of sofa covers, enabling convenient disassembly and stable connection of sofa covers and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-03
AI Technical Summary
One-piece sofas take up a lot of space and are inconvenient to transport, while the covers of assembled sofas are difficult to disassemble and are prone to shifting, affecting the user experience.
Design a zipper-type assembled sofa with a detachable back cover and back support frame that are stably fixed by Velcro and zipper structure. The base module and armrest module are connected by clips and Velcro for easy disassembly and assembly.
It enables easy removal, washing, and replacement of sofa covers, enhances the connection stability between the sofa cover and the frame, prevents the sofa cover from shifting during use, and improves the user experience.
Smart Images

Figure CN224070084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sofa technology, and in particular to a zipper-assembled sofa. Background Technology
[0002] One-piece sofas take up a lot of space and are inconvenient to transport, while modular sofas, which are usually divided into base modules, armrest modules, and backrest modules, are easier to transport and assemble on-site. If the sofa covers for the base, armrest, and backrest modules cannot be disassembled, it is inconvenient to remove and wash them as needed. If the sofa covers can be disassembled, they may not be securely fixed to the support frame, and over time, the sofa covers may shift, especially the backrest and base covers, affecting the user experience. Utility Model Content
[0003] This utility model proposes a zipper-type assembled sofa, in which the back cover and the back support are detachably connected, and the back cover is not prone to shifting during use.
[0004] The technical solution of this utility model is implemented as follows: A zipper-type assembled sofa includes a base module, detachable armrest modules on both the left and right sides of the base module, and a detachable backrest module at the rear end of the base module. The backrest module includes a backrest support and a backrest cover. A fitting cavity is provided on the rear side of the backrest cover. A first extension piece is provided on the front side of the lower end of the fitting cavity, and a second extension piece is provided on the rear side. The backrest support is placed inside the fitting cavity. The end of the first extension piece passes around the bottom end of the backrest support and is fixed to the inside of the first extension piece by an end Velcro fastener. The second extension piece is fixed to the rear end of the base module by a connecting Velcro fastener.
[0005] Furthermore, the backrest support includes an outer frame, within which crossbars are fixed at intervals, and elastic bands are also fitted at intervals on the outer frame. A first extension piece wraps around the outside of the lowest crossbar of the backrest support. The elastic bands enhance the comfort of the backrest support.
[0006] Furthermore, the left end of the backrest cover has a first receiving cavity, and the right end has a second receiving cavity. Both the first and second receiving cavities are equipped with second zippers, and both the first and second receiving cavities are filled with back pads. This structure facilitates the removal, washing, and replacement of the back pads.
[0007] Furthermore, the base module includes a base bracket and a base sleeve. The base sleeve includes a seat cushion, with a soft pad at the upper end of the seat cushion, a bending pad at the front end of the soft pad, and a connecting piece at the lower side of the front end of the seat cushion. The seat cushion is fixedly connected to the upper end of the base bracket by a first Velcro fastener, the connecting piece is fixedly connected to the upper side of the front end of the base bracket by a second Velcro fastener, and the bending pad is fixed to the front end of the base bracket by a third Velcro fastener, with the third Velcro fastener located below the second Velcro fastener.
[0008] Furthermore, the handrail module includes a handrail frame and a handrail cover. The handrail cover has an assembly cavity, and the handrail frame is placed inside the assembly cavity. A retaining cloth is provided inside the assembly cavity, and the front, back, and lower ends of the retaining cloth are connected to the handrail cover via a first zipper. This structure allows the handrail frame to be easily placed inside the assembly cavity by opening the first zipper.
[0009] Furthermore, a first card plate is fixed at intervals on the inner side of the armrest frame, and a through hole is provided on the armrest sleeve at the position corresponding to the first card plate. A second card plate is fixed on the base module and is engaged with the first card plate. Both the first card plate and the second card plate are U-shaped metal plates with a narrower lower end.
[0010] The beneficial effects of this utility model are:
[0011] The backrest cover and backrest bracket of this utility model are detachable, making it easy to clean or replace the backrest cover. Furthermore, the backrest cover is connected to the lower end of the backrest bracket via a first extension piece and an end Velcro fastener, increasing the stability and strength of the connection between the backrest cover and the backrest bracket. The second extension piece is fixedly connected to the rear end of the base module via a connecting Velcro fastener, further increasing the stability of the connection between the backrest cover and the base module and preventing the backrest cover from shifting during use.
[0012] The base sleeve and base bracket of this utility model are detachably connected. The cushion is fixed to the base bracket by the first Velcro. Although the bent cushion is a flexible structure, it is not easy to connect with the base bracket at the bend. Here, a connecting piece is added to fix it to the base bracket by the second Velcro, which increases the stability of the cushion and makes it less likely to shift. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a front view of the assembled sofa according to this utility model;
[0015] Figure 2 Left view of the base module;
[0016] Figure 3 This is the right view of the handrail module;
[0017] Figure 4 This is the right view of the armrest frame;
[0018] Figure 5 This is the front view of the backrest cover;
[0019] Figure 6 This is the rear view of the backrest cover;
[0020] Figure 7 This is the front view of the backrest support.
[0021] Base module 1, base bracket 2, seat cushion 3, soft cushion 4, bending cushion 5, connecting piece 6, first hook and loop fastener 7, second hook and loop fastener 8, third hook and loop fastener 9, armrest module 10, armrest frame 11, armrest cover 12, assembly cavity 13, first zipper 14, backrest module 15, backrest cover 16, first extension piece 17, second extension piece 18, outer frame 19, crossbar 20, elastic band 21, end hook and loop fastener 22, connecting hook and loop fastener 23, first receiving cavity 24, second receiving cavity 25, second zipper 26, first retaining plate 27, through hole 28, second retaining plate 29, third retaining plate 30. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In this utility model, the terms "front," "rear," "left," and "right" are relative to... Figure 1 The positional relationship is shown.
[0024] like Figure 1 and 2 As shown, a zipper-type assembled sofa includes a base module 1, which includes a base support 2 and a base cover. The base cover includes a seat cushion 3, with a soft pad 4 at the upper end of the seat cushion 3 and a bending pad 5 at the front end of the soft pad 4. A connecting piece 6 is fixed to the lower side of the front end of the seat cushion 3. The seat cushion 3 is fixedly connected to the upper end of the base support 2 by a first Velcro 7, and the connecting piece 6 is fixedly connected to the upper side of the front end of the base support 2 by a second Velcro 8. The bending pad 5 is fixed to the front end of the base support 2 by a third Velcro 9, which is located below the second Velcro 8.
[0025] like Figure 1 , 3As shown in Figure 4, detachable armrest modules 10 are provided on both the left and right sides of the base module 1. Each armrest module 10 includes an armrest frame 11 and an armrest cover 12. An assembly cavity 13 is provided inside the armrest cover 12, and the armrest frame 11 is placed within the assembly cavity 13. A cover is provided inside the assembly cavity 13, with its upper end fixedly connected to the armrest cover 12. The front, rear, and lower ends of the cover are connected to the armrest cover via a first zipper 14. To zip up the armrest, open the first zipper 14, place the armrest frame 11 into the assembly cavity 13 through the open end, and then zip up the first zipper 14.
[0026] like Figure 1 , 5 As shown in Figure 7, a detachable backrest module 15 is provided at the rear end of the base module 1. The backrest module 15 includes a backrest bracket and a backrest sleeve 16. A fitting cavity is provided on the rear side of the backrest sleeve 16. A first extension piece 17 is provided on the front side of the lower end of the fitting cavity, and a second extension piece 18 is provided on the rear side. The backrest bracket is placed inside the fitting cavity. The backrest bracket includes an outer frame 19. Crossbars 20 are fixed at intervals inside the outer frame 19. Elastic bands 21 are also fitted at intervals on the outer frame 19. The end of the first extension piece 17 passes around the bottom end of the backrest bracket and is fixed to the inside of the first extension piece 17 by end Velcro 22. For example, the hook side of the end Velcro 22 is fixed to the end of the first extension piece 17, and the rough side is fixed to the inside of the first extension piece 17. After the end of the first extension piece 17 loops around the bottom crossbar 20, its hook side and rough side are fixedly connected. The second extension piece 18 is fixedly connected to the rear end of the base module 1 by connecting Velcro 23.
[0027] The backrest cover 16 has a first receiving cavity 24 at the left end and a second receiving cavity 25 at the right end. A second zipper 26 is fixed to both the first receiving cavity 24 and the second receiving cavity 25. Both the first receiving cavity 24 and the second receiving cavity 25 are filled with back pads. By opening the second zipper 26, the back pads are filled into the corresponding receiving cavities.
[0028] like Figure 2-4 As shown, a first clip plate 27 is fixed at intervals on the inner side of the armrest frame. A through hole 28 is provided on the armrest sleeve 12 at the position corresponding to the first clip plate 27. A second clip plate 29 is fixed on the base module 1 to be engaged with the first clip plate 27. Both the first clip plate 27 and the second clip plate 29 are U-shaped metal plates with a narrower lower end. The first clip plate 27 is inserted into the second clip plate 29 to realize the assembly of the armrest module 10 and the base module 1.
[0029] like Figure 7 As shown, a third card plate 30 is fixed on both sides of the lower end of the backrest bracket, and a fourth card plate is fixed on the base module 1 to be engaged with the third card plate 30. The third card plate 30 and the fourth card plate have the same structure as the first card plate 27 and the second card plate 29.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A zipper-type assembled sofa, comprising a base module, characterized in that: The base module has detachable armrest modules on both the left and right sides, and a detachable backrest module at the rear end. The backrest module includes a backrest bracket and a backrest cover. The backrest cover has a fitting cavity at the rear. A first extension piece is provided on the front side of the lower end of the fitting cavity, and a second extension piece is provided on the rear side. The backrest bracket is placed inside the fitting cavity. The end of the first extension piece passes around the bottom of the backrest bracket and is fixed to the inside of the first extension piece by end Velcro. The second extension piece is fixed to the rear end of the base module by connecting Velcro.
2. The zipper-type assembled sofa according to claim 1, characterized in that: The backrest support includes an outer frame, with crossbars fixed at intervals inside the outer frame, and elastic bands also fitted at intervals on the outer frame. The first extension piece is wrapped around the outside of the crossbar at the bottom of the backrest support.
3. A zipper-type assembled sofa according to claim 1 or 2, characterized in that: The backrest cover has a first receiving cavity on the left end and a second receiving cavity on the right end. Both the first and second receiving cavities are equipped with a second zipper, and both the first and second receiving cavities are filled with back pads.
4. A zipper-type assembled sofa according to claim 1, characterized in that: The base module includes a base bracket and a base sleeve. The base sleeve includes a seat cushion with a soft pad at the top and a bending pad at the front end. A connecting piece is located on the lower side of the front end of the seat cushion. The seat cushion is fixedly connected to the top end of the base bracket by a first Velcro fastener. The connecting piece is fixedly connected to the upper side of the front end of the base bracket by a second Velcro fastener. The bending pad is fixed to the front end of the base bracket by a third Velcro fastener, which is located below the second Velcro fastener.
5. A zipper-type assembled sofa according to claim 1, characterized in that: The handrail module includes a handrail frame and a handrail cover. The handrail cover has an assembly cavity, and the handrail frame is placed inside the assembly cavity. A baffle is provided on the inside of the assembly cavity. The front and back sides and the lower end of the baffle are connected to the handrail cover by a first zipper.
6. A zipper-type assembled sofa according to claim 5, characterized in that: The inner side of the armrest frame is fixed with a first card plate at intervals. The armrest sleeve is provided with a through hole at the position corresponding to the first card plate. The base module is fixed with a second card plate that is snapped into the first card plate. Both the first card plate and the second card plate are U-shaped metal plates with a narrower lower end.