A sectional sofa

CN224791972UActive Publication Date: 2026-09-25ZHONGSHAN GAINWELL FURNITURE CO LTD
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Patent Information

Application Number
CN202522021700.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-09-25
Estimated Expiration
2035-09-19

AI Technical Summary

Technical Problem

当传统单体结构沙发被用作临时床铺时,由于其靠背与底座为固定一体的,无法将靠背拆卸,导致沙发充当临时卧具时,其宽度受限,舒适性差,难以满足单人舒适睡眠的需求

Benefits of technology

[0014]综上,本拼接式沙发具有靠背可以拆卸,以满足坐靠、临时睡觉等需求,舒适性高,便于清洁和搬运的优点。

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224791972U_ABST
    Figure CN224791972U_ABST
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Abstract

The utility model discloses a spliced sofa, including a plurality of sofa monomer along the transverse arrangement, the sofa monomer includes base, backrest, back pad and cushion, its characterized in that, the base includes seat board and seat frame, the seat frame is U-shaped and the opening is towards the front side, the seat frame is fixedly connected with seat board, the backrest includes backboard, the rear side fixed mounting of backboard has the limit stop, the part of backboard at limit stop lower extreme is the insertion end, the seat board is provided with the insertion end and is inserted with the insertion end and is inserted with the cooperation of the mouth, the limit stop and seat board are pasted when the insertion end and the mouth are inserted with the cooperation, the back pad's rear side is sewed and has the pocket, the pocket is set in the upper end outside of backboard, the cushion is placed on the seat board, and the spliced sofa has the backrest that can dismantle to meet the sitting and leaning, temporary sleeping demand etc.
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Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a modular sofa. Background Technology

[0002] As a core piece of furniture in living rooms and leisure spaces, sofas are increasingly valued by consumers for their functionality and spatial adaptability. Currently, mainstream sofa products on the market consist of multiple individual sofa units, each including a base, a backrest fixedly connected to the base, and a seat cushion placed on the base. Multiple sofa units are arranged horizontally to form a long, narrow sofa.

[0003] However, with the increasing demand for diversified use of living spaces, users have placed higher demands on the multifunctionality of sofas, especially in small and medium-sized apartments where sofas often need to serve the dual functions of seating and temporary sleeping. When traditional single-unit sofas are used as temporary beds, the fixed backrest and base prevent the backrest from being disassembled, resulting in limited width and poor comfort, making it difficult to meet the needs of a single person for comfortable sleep. Furthermore, the integrated base and backrest of these sofas can trap debris and other impurities in the gaps between the base and backrest, making them difficult to clean. In addition, these sofas are bulky, heavy, and inconvenient to move. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a modular sofa with a detachable backrest to meet the needs of sitting, leaning, and temporary sleeping, which is highly comfortable and easy to clean and move.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A modular sofa comprises several sofa units arranged horizontally, each sofa unit including a base, a backrest, a back cushion, and a seat cushion, characterized in that...

[0007] The base includes a seat plate and a seat frame. The seat frame is U-shaped with its opening facing forward, and the seat frame is fixedly connected to the seat plate. The backrest includes a back panel, and a limiting plate is fixedly installed on the rear side of the back panel. The portion of the back panel located below the limiting plate is an insertion end. The seat plate is provided with an insertion port that engages with the insertion end. When the insertion end engages with the insertion port, the limiting plate fits against the seat panel. A pocket is sewn onto the rear side of the back cushion. The pocket is fitted over the upper outer side of the back panel, and the seat cushion is placed on the seat plate.

[0008] This detachable design of the base and backrest allows for versatile use. When needed as temporary sleeping space, the backrest and back cushion can be removed, as can the seat cushion and an additional long cushion. Removing the backrest maximizes the use of the sofa's space, enhancing comfort. It also makes cleaning and moving easier.

[0009] Preferably, the lower end of the back cushion is fixedly installed with three spaced hook-and-loop fasteners, and the lower end of the seat cushion is fixedly installed with three spaced loop fasteners. When the opening of the back cushion is fitted onto the upper outer side of the back panel, the hook-and-loop fasteners are placed on the seat panel, and the loop fasteners of the seat cushion are connected to the hook-and-loop fasteners.

[0010] Preferably, a number of reinforcing ribs are fixed between the back plate and the limiting plate.

[0011] Preferably, a number of cross braces are fixedly installed inside the seat frame, and the cross braces are spaced apart from the seat plate.

[0012] Preferably, the backrest can be inserted into the gap between the back panel and the cross brace.

[0013] Preferably, the two sides of the seat plate are located on the outer side of the seat frame.

[0014] In summary, this modular sofa features a detachable backrest to meet needs such as sitting, leaning, and temporary sleeping, offering high comfort and ease of cleaning and moving. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a modular sofa according to the present invention.

[0016] Figure 2 for Figure 1 A structural diagram of the individual sofa unit.

[0017] Figure 3 for Figure 2 A schematic diagram of the back structure.

[0018] Figure 4 This is a schematic diagram of the base structure.

[0019] Figure 5 for Figure 4 A schematic diagram of the bottom structure of the central base.

[0020] Figure 6 This is a schematic diagram of the backrest structure.

[0021] Figure 7 This is a schematic diagram of the back pad structure.

[0022] Figure 8 This is a schematic diagram of the bottom structure of the seat cushion.

[0023] Figure 9 This is a schematic diagram of the temporary bedding. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] like Figure 1-9 As shown, a modular sofa includes several sofa units arranged horizontally. Each sofa unit includes a base, a backrest, a back cushion 1, and a seat cushion 11. Its characteristic is that...

[0026] The base includes a seat plate 12 and a seat frame 13. The seat frame is U-shaped with its opening facing forward, and the seat frame is fixedly connected to the seat plate. The backrest includes a back panel 14. A limiting plate 15 is fixedly installed on the rear side of the back panel. The portion of the back panel located below the limiting plate is an insertion end. The seat plate is provided with an insertion port 16 that engages with the insertion end. When the insertion end engages with the insertion port, the limiting plate is in contact with the seat plate. A pocket 17 is sewn onto the rear side of the back cushion. The pocket is fitted onto the upper outer side of the back panel, and the seat cushion is placed on the seat plate.

[0027] This detachable design of the base and backrest allows for versatile use. When needed as temporary sleeping space, the backrest and back cushion can be removed, as can the seat cushion and an additional long cushion. Removing the backrest maximizes the use of the sofa's space, enhancing comfort. It also makes cleaning and moving easier.

[0028] In practice, three spaced hook-and-loop fasteners 18 are fixedly installed at the lower end of the back cushion, and three spaced loop fasteners 19 are fixedly installed at the lower end of the seat cushion. When the opening of the back cushion is fitted onto the upper outer side of the back panel, the hook-and-loop fasteners are placed on the seat panel, and the loop fasteners of the seat cushion are connected to the hook-and-loop fasteners.

[0029] In this way, by setting hook-and-loop fasteners at the bottom of the back cushion and loop fasteners at the bottom of the seat cushion, a detachable connection between the back cushion and the seat cushion is achieved. This structure prevents the seat cushion from shifting during normal sofa use, ensuring seating stability; when converting it into a bed, the quick-release feature of the fasteners simplifies disassembly and improves the efficiency of scene transformation. At the same time, the fastener connection method is simple in structure, low in cost, and easy to repeatedly disassemble and reuse, balancing practicality and economy.

[0030] During implementation, several reinforcing ribs 2 are fixed between the back panel and the limiting plate. These reinforcing ribs enhance the overall structural strength of the backrest. During installation or disassembly of the backrest, the reinforcing ribs distribute the stress, preventing deformation or breakage at the connection between the back panel and the limiting plate due to frequent insertion and removal, thus extending the lifespan of the backrest and ensuring the structural stability of the sofa during long-term use.

[0031] In practice, several cross braces 21 are fixedly installed inside the seat frame, and the cross braces are spaced apart from the seat plate. The backrest can be inserted into the gap between the back plate and the cross braces.

[0032] By incorporating cross braces within the seat frame, spaced apart from the seat panel, the load-bearing capacity of the frame is enhanced, preventing the seat panel from bending under excessive stress. This also provides a foundation for storing the backrest. The cross braces make the seat frame more stable, supporting a bed-like structure formed by multiple interlocking bases, ensuring the user's safety and comfort while lying down. When the sofa is converted into temporary sleeping space, no extra space is needed to store the backrest, saving space and preventing damage or loss due to careless placement, thus improving the product's ease of use.

[0033] In practice, the two sides of the seat panel are located on the outer side of the seat frame. Extending the two sides of the seat panel to the outer side of the seat frame allows the sides of adjacent seat panels to fit seamlessly when multiple sofa units are joined laterally, reducing the splicing gap and facilitating handling.

[0034] The detachable backrest and base, along with the Velcro connection between the back cushion and seat cushion, allow for easy switching between a sofa and temporary sleeping area, effectively addressing the issues of low space utilization and limited functionality inherent in traditional single-unit sofas. Furthermore, compared to sofas with an integrated base and backrest, removing the backrest improves the comfort of using the temporary sleeping area. When switching from sofa to temporary sleeping area, simply remove the back cushion, separate the insert from the socket, and place the backrest on the crossbar. The back cushion includes its packaging and contents; pockets are sewn into the packaging for easy connection between the back cushion and the back panel, minimizing cushion shifting and enhancing user comfort.

[0035] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A modular sofa, comprising a plurality of sofa units arranged laterally, each sofa unit comprising a base, a backrest, a back cushion (1), and a seat cushion (11), characterized in that, The base includes a seat plate (12) and a seat frame (13). The seat frame (13) is U-shaped and the opening faces forward. The seat frame (13) is fixedly connected to the seat plate (12). The backrest includes a back panel (14). A limiting plate (15) is fixedly installed on the back side of the back panel (14). The part of the back panel (14) located at the lower end of the limiting plate (15) is an insertion end. The seat plate (12) is provided with an insertion port (16) that is inserted and engaged with the insertion end. When the insertion end is inserted and engaged with the insertion port (16), the limiting plate (15) is in contact with the seat plate (12). A pocket (17) is sewn on the back side of the back cushion (1). The pocket (17) is fitted on the upper outer side of the back panel (14). The seat cushion (11) is placed on the seat plate (12).

2. The modular sofa according to claim 1, characterized in that, The lower end of the back cushion (1) is fixedly installed with three spaced hook-and-loop fasteners (18), and the lower end of the seat cushion (11) is fixedly installed with three spaced loop fasteners (19). When the opening of the back cushion (1) is fitted onto the upper outer side of the back panel (14), the hook-and-loop fasteners (18) are placed on the seat panel (12), and the loop fasteners (19) of the seat cushion (11) are connected to the hook-and-loop fasteners (18).

3. A modular sofa according to claim 2, characterized in that, Several reinforcing ribs (2) are fixed between the back plate (14) and the limiting plate (15).

4. A modular sofa according to claim 3, characterized in that, Several cross braces (21) are fixedly installed inside the seat frame (13), and the cross braces (21) are spaced apart from the seat plate (12).

5. A modular sofa according to claim 4, characterized in that, The backrest can be inserted into the gap between the back panel (14) and the cross brace (21).

6. A modular sofa according to claim 1, characterized in that, The two sides of the seat plate (12) are located on the outside of the seat frame (13).