Modularized seat

Modular seating with modular design and welded iron frame structure solves the problems of inconvenient transportation and limited functionality of one-piece sofas, achieving a lightweight, environmentally friendly and multifunctional seating experience.

CN223640416UActive Publication Date: 2025-12-09ANJI XINZHAN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520095171.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-09
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

Existing single or multi-seat sofas are of a single-piece structure, which is inconvenient to move, takes up a lot of space, is heavy, is not environmentally friendly, has limited functionality, and cannot place personal belongings.

Method used

The modular seating design features detachable seat, backrest, and armrest modules, assembled via connecting interfaces. It utilizes a welded iron frame structure and includes a tabletop and pockets, replacing traditional sofa side tables.

Benefits of technology

The modular design reduces storage space, makes it easy to move, is environmentally friendly and lightweight, increases functionality, and provides storage space for items on the table and in pockets, making it suitable for a wide range of applications.

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Abstract

The utility model relates to a modularized seat which comprises a seat cushion module, a backrest module and an armrest module, wherein the backrest module and the armrest module are detachably arranged on the seat cushion module; wherein the seat cushion module comprises a seat frame, the backrest module comprises a back frame, and the armrest module comprises two armrest frames; the back frame is arranged at the upper end of the rear side of the seat frame, and a plurality of first connecting interfaces are correspondingly formed in the seat frame and the back frame; the armrest frames are attached to the two sides of the seat frame and the back frame, and a plurality of second connecting ports are formed in the seat frame and the armrest frames; the lower end of the armrest frame is lower than the lower end of the seat frame, so that the armrest frame can be supported on the ground, or the lower end of the armrest frame is flush with the lower end of the seat frame, a plurality of supporting legs are detachably arranged at the bottom of the seat frame, and a plurality of third connecting ports are correspondingly formed in the supporting legs and the seat frame. According to the scheme, the modularized seat is configured into a plurality of modules, so that the storage space is reduced, and carrying and transportation are very convenient; and the connecting pieces are inserted into the corresponding connecting interfaces among the plurality of modules to connect the modules, so that the disassembly and assembly are convenient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to furniture technical field especially relates to a modular seating. BACKGROUND

[0002] The existing single or multi-person seat sofa is a whole structure, the sofa interior is a wooden frame, and the outside is coated with fabric, such as a Chinese utility model patent with publication number CN221750030U discloses a strong stable sofa wooden frame, which comprises a main frame body and side supports arranged on both sides of the surface of the main frame body, the surface of the main frame body and the side supports is jointly installed with a backrest frame, and the surface of the backrest frame and the main frame body is provided with a weight reduction groove; the lower surface of the main frame body is provided with a support stabilizing assembly at each corner, and the plurality of support stabilizing assemblies are connected to the bottom of the main frame body through a reinforcing plate, the support stabilizing assembly comprises two oppositely arranged connecting seats one and two, and the surface of the connecting seat one and the connecting seat two is respectively hinged with a support column and an adjusting arm. The support stabilizing assembly is arranged to retain the traditional single support foot support, and the adjusting arm is used to form a triangular support state of the main frame body, the adjusting arm and the support column, thereby improving the support effect of the sofa frame as a whole and making it more stable in actual use.

[0003] The shelf in the sofa is integrated, which makes the overall transportation of the sofa inconvenient, increases the transportation cost, and occupies a large storage space. In addition, the wooden frame structure is heavy, which further increases the difficulty of transportation, consumes wood, is not environmentally friendly, and the formaldehyde content in the wooden frame cannot be removed, which has certain safety hazards.

[0004] In addition, the existing sofa is only used as a seating device, and cannot place personal items or laptops when working, lacking certain functionality. SUMMARY

[0005] In order to solve the above problems, the utility model aims at providing a modular seating, which is configured as multiple modules and can be easily disassembled, transported and transported through corresponding connecting interfaces. In addition, the module adopts an iron frame welding structure, which is more portable, environmentally friendly, and has improved structural strength. In addition, the table board and pocket design on the seating replace the function of the traditional sofa side table, and have good functionality.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A modular seating arrangement, characterized in that it includes a seat cushion module, and a backrest module and an armrest module detachably mounted on the seat cushion module; wherein the seat cushion module includes a seat frame, the backrest module includes a back frame, and the armrest module includes two armrest frames; the back frame is located at the upper rear side of the seat frame, and the seat frame and back frame are respectively provided with multiple first connection interfaces; the armrest frames are attached to both sides of the seat frame and back frame, and the seat frame and armrest frames are respectively provided with multiple second connection interfaces; the lower end of the armrest frame is lower than the lower end of the seat frame, so that the armrest frame can be supported on the ground, or the lower end of the armrest frame is flush with the lower end of the seat frame, and the bottom of the seat frame is detachably provided with multiple support legs, and the support legs and the seat frame are respectively provided with multiple third connection interfaces.

[0008] Preferably, the seat frame is a square frame with a storage space inside; the frame includes two symmetrically arranged side support iron frames, and two upper support iron pipes and two lower support iron pipes welded between the two side support iron frames. A mounting platform is welded to the upper support iron pipes and side support iron frames on the upper rear side of the seat frame, and the upper end of the mounting platform is provided with multiple first connection interfaces; the back frame includes a base plate and multiple back support beams welded to the upper sides of the base plate, and fixing rods are welded to the upper ends of the multiple back support beams. The base plate is mounted on the mounting platform, and multiple first connection interfaces are correspondingly provided on the base plate.

[0009] Preferably, a connecting iron pipe is welded between the two side support iron frames on the upper inner side of the seat frame, and the connecting iron pipe is arranged at the same horizontal level as the upper support iron pipe; the upper support iron pipe away from the connecting iron pipe and the upper and lower ends of the connecting iron pipe are provided with multiple fixing holes, and an elastic component is connected between them. The elastic component includes multiple serpentine springs, and hooks are connected to both ends of the serpentine springs. The upper and lower sides of the inner wall of the hooks are provided with protrusions that cooperate with the fixing holes.

[0010] Preferably, PVC fixing frame strips and PVC fixing straight strips are laid below the multiple serpentine springs, and the PVC fixing frame strips and PVC fixing straight strips are tied and fixed to the multiple serpentine springs by fixing sleeves.

[0011] Preferably, the side support iron frame and the handrail frame are provided with a plurality of second connection interfaces.

[0012] Preferably, the lower end of the armrest frame is lower than the lower end of the seat frame. A horizontal beam is welded inside the armrest frame to form two assembly through holes. The second connection interface is provided on the horizontal beam. Two vertical beams are welded longitudinally inside the upper assembly through hole. The two vertical beams are respectively hinged to a table board. The lower end of the armrest frame is supported on the ground.

[0013] Preferably, the lower end of the armrest frame is flush with the lower end of the seat frame, and an assembly through hole is formed inside the armrest frame. Two vertical beams are longitudinally welded into the assembly through hole, and the two vertical beams are respectively hinged to a tabletop. The lower end of the armrest frame is flush with the lower end of the seat frame.

[0014] Preferably, at least one side of the tabletop has multiple pockets on its outer surface.

[0015] Preferably, the support leg includes a connecting piece and a support body welded to the bottom of the connecting piece; the connecting piece is provided with the plurality of third connection interfaces, the plurality of third connection interfaces including a connecting round hole and two oblong holes.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] ① Modular seating is configured into multiple modules, reducing storage space and making handling and transportation much more convenient; connectors (pins, bolts, etc.) are inserted into the corresponding connection interfaces between multiple modules to connect the modules, making disassembly and assembly convenient; and different shaped parts (backrests, armrests) can be assembled on each set of interfaces, making it widely applicable.

[0018] ② Each module adopts a welded iron frame structure, replacing wood, which is lighter and more environmentally friendly, and the structural strength is also improved.

[0019] ③ A tabletop is hinged to the armrest. When not in use, the tabletop can be folded up to save space. When in use, it can be quickly unfolded to replace a side table, reducing the cost of purchasing one. It allows for work while relaxing, such as using a laptop. Pockets can be added to the tabletop to hold a laptop, books, or snacks for use during leisure time. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the first type of modular seating.

[0021] Figure 2 This is a schematic diagram of the folding table and pocket arrangement on the first type of modular seating.

[0022] Figure 3 This is an exploded structural diagram of the first type of modular seating.

[0023] Figure 4 This is a three-dimensional structural diagram of the second type of modular seating.

[0024] Figure 5 This is a schematic diagram of the folding table and pocket arrangement on the second type of modular seating.

[0025] Figure 6 This is a schematic diagram showing the exploded structure of the second type of modular seating.

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the seat frame.

[0027] Figure 8 This is a schematic diagram showing the arrangement of the protrusions on the hook.

[0028] Figure 9 A three-dimensional structural diagram of PVC fixed frame strips and PVC fixed straight strips.

[0029] Figure 10 This is a schematic diagram of the three-dimensional structure of the hinge.

[0030] Figure 11 A side view of the structure when the hinge is open.

[0031] Figure 12 This is a schematic diagram of the three-dimensional structure of the support leg. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] like Figure 1 A modular seating system is characterized by comprising a seat cushion module, and a backrest module and an armrest module detachably mounted on the seat cushion module; wherein the seat cushion module includes a seat frame 1, the backrest module includes a back frame 2, and the armrest module includes two armrest frames 3; the back frame 2 is mounted on the upper rear side of the seat frame 1, and the seat frame 1 and the back frame 2 are respectively provided with multiple first connection interfaces 4; the armrest frames 3 are attached to the sides of the seat frame 1 and the back frame 2, and the seat frame 1 and the armrest frames 3 are respectively provided with multiple second connection interfaces 5; the lower end of the armrest frame 3 is lower than the lower end of the seat frame 1, so that the armrest frame 3 can be supported on the ground, or the lower end of the armrest frame 3 is flush with the lower end of the seat frame 1, and the bottom of the seat frame 1 is detachably provided with multiple support legs 6, and the support legs 6 are respectively provided with multiple third connection interfaces 7 on the seat frame 1.

[0038] In the above technical solution, the modular seating is divided into at least a seat cushion module, a backrest module, and an armrest module. There are four first connection interfaces between the seat frame and the back frame, and four second connection interfaces between the seat frame and the armrest frame. The support part is directly supported by the armrest frame, or by multiple detachable legs. There are three third connection interfaces between the seat frame and the legs. The modules can be connected by inserting pins or bolts into these connection interfaces, which is convenient for disassembly and assembly. The modular seating is configured into multiple modules, which reduces storage space and is very convenient for handling and transportation. Different shaped parts (backrest, armrest) can be assembled on each set of interfaces, making it widely applicable.

[0039] Furthermore, the seat frame 1 is a square frame with a storage space 100 inside; the frame includes two symmetrically arranged side support iron frames 8, and two upper support iron pipes 9 and two lower support iron pipes 10 welded between the two side support iron frames 8. A mounting platform 11 is welded to the upper support iron pipes 9 and the side support iron frames 8 on the upper rear side of the seat frame 1. The upper end of the mounting platform 11 is provided with multiple first connection interfaces 4; the back frame 2 includes a base plate 12 and multiple back support beams welded to both sides of the upper end of the base plate 12. The upper ends of the multiple back support beams are welded with fixing rods 14. The base plate 12 is mounted on the mounting platform 11, and the base plate 12 is provided with multiple first connection interfaces 4.

[0040] In the above technical solution, the seat frame is made of welded iron frames, forming an internal storage space. During packaging, accessories such as the back frame, armrests, and legs can be placed inside the seat frame simultaneously, greatly reducing packaging volume, significantly reducing transportation costs, increasing container capacity, and improving space utilization. The welded iron frame manufacturing process is simpler and replaces wood, making it lighter and more environmentally friendly, while also improving structural strength. Furthermore, it avoids the problems of moisture, mold, and insect infestation common with traditional wooden frames.

[0041] It should be noted that the back support beam includes a first back support beam 13.1 and a second back support beam 13.2. The second back support beam 13.2 has an arc-shaped design, which better fits the curve of the backrest and is more in line with the principles of ergonomics.

[0042] like Figures 7-9 The upper inner side of the seat frame 1, as shown, is welded with a connecting iron pipe 15 between the two side support iron frames 8. The connecting iron pipe 15 and the upper support iron pipe 9 are arranged at the same horizontal level. Multiple fixing holes 16 are provided at the upper and lower ends of the upper support iron pipe 9, away from the connecting iron pipe 15, and elastic components are connected between them. The elastic components include multiple serpentine springs 17, with hooks 18 connected to both ends of the serpentine springs 17. The upper and lower sides of the inner wall of the hooks 18 have protrusions 19 that mate with the fixing holes 16. In this technical solution, the elastic components play a shock-absorbing and rebounding role, making the seating more comfortable. The protrusions on the hooks, in conjunction with the fixing holes on the seat frame, allow the elastic components to be firmly fixed to the seat frame, reducing wobbling and preventing them from easily coming loose.

[0043] Furthermore, PVC fixing frame strips 20 and PVC fixing straight strips 22 are laid below the multiple serpentine springs 17. The PVC fixing frame strips 20 and PVC fixing straight strips 22 are bundled and fixed to the multiple serpentine springs 17 by fixing sleeves. In this technical solution, the PVC fixing frame strips and PVC fixing straight strips can reinforce multiple serpentine springs. In addition, the existing frame strips use traditional paper-wrapped steel wire, which is prone to moisture, resulting in the product not being firmly fixed and falling off. The paper is bonded to the steel wire with glue, which contains formaldehyde. The PVC fixing frame strips and PVC fixing straight strips are PVC plastic-wrapped steel wire, which wraps the steel wire with melted plastic, without the use of glue. At the same time, they will not be affected by moisture, fall off, and extend the service life. In addition, the entire frame strip adopts a ring design, which connects multiple serpentine springs into one, and the reinforcement effect is more obvious during use, improving the performance of the serpentine springs and making the sitting feel more comfortable.

[0044] Furthermore, the side support frame 8 and the armrest frame 3 are respectively provided with multiple second connection interfaces 5. In this technical solution, the multiple second connection interfaces can not only be used to assemble armrest frames of different shapes, but also to install multiple seat frames side by side to expand into two-person and three-person seats, which has a wide range of applications.

[0045] like Figure 5 and Figure 6 As shown, the lower end of the armrest frame 3 is lower than the lower end of the seat frame 1. A horizontal beam 23 is welded inside the armrest frame 3 to form two mounting through holes 24. The second connection interface 5 is provided on the horizontal beam 23. Two vertical beams 25 are welded longitudinally inside the upper mounting through hole 24. The two vertical beams 25 are respectively hinged to a tabletop 27 via hinges 26. The lower end of the armrest frame 3 is supported on the ground. In this technical solution, the lower end of the armrest frame is directly supported on the ground, eliminating the need for support legs, which is more convenient. It also increases the support area, providing better support for the seat and improving the overall stability of the seat.

[0046] Furthermore, the lower end of the armrest frame 3 is flush with the lower end of the seat frame 1. An assembly through-hole 24 is formed within the armrest frame 3, and two vertical beams 25 are longitudinally welded within the assembly through-hole 24. The two vertical beams 25 are respectively hinged to a tabletop 27 via hinges 26. In this technical solution, the lower end of the armrest frame is flush with the lower end of the seat frame, maintaining the overall aesthetics of the seating. The bottom of the seat frame is supported by detachable legs, and the vertical beams within the armrest frame improve its structural strength.

[0047] Both types of seating feature hinged tabletops on their armrest frames. These tabletops can be folded out relative to the vertical beams to maintain a horizontal position, allowing users to place items or work, thus replacing the function of traditional sofa side tables, saving space and reducing configuration costs. Lowering the tabletop vertically close to the armrests maintains the overall aesthetic appeal of the seating arrangement, without taking up design space, which is very convenient.

[0048] It should be noted here that, as Figures 10-11 As shown, the hinge in this case is this component, which includes a first connecting section 200 and a second connecting section 300 that are hinged together. By fixing one of these two connecting sections to the vertical beam and the other to the table, the table can be flipped. The hinge is also equipped with a locking device to keep the table in the flipped-up state for easy use.

[0049] like Figure 2 and Figure 5 As shown, at least one side of the tabletop 27 has multiple pockets 28 on its outer surface. In this design, the multiple pockets include a large pocket, which can be used to store not only a laptop, but also books and snacks for leisure use; and a smaller pocket for storing a mobile phone, preventing it from easily falling out.

[0050] like Figure 12 As shown, the support leg 6 includes a connecting piece 29 and a support body welded below the connecting piece 29; the connecting piece 29 has a plurality of third connection interfaces 7, each including a connecting round hole 30 and two oblong holes 31. In this technical solution, the third connection interface includes a connecting round hole and two oblong holes, so that the support leg can be more reliably fixed to the frame, providing good support, and the oblong holes have a large range, facilitating the installation of the support leg.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A modular seating arrangement, characterized in that: The system includes a seat cushion module, a backrest module and an armrest module that are detachably mounted on the seat cushion module; wherein, the seat cushion module includes a seat frame (1), the backrest module includes a back frame (2), and the armrest module includes two armrest frames (3); the back frame (2) is mounted on the upper rear side of the seat frame (1), and the seat frame (1) and the back frame (2) are provided with a plurality of first connection interfaces (4); the armrest frame (3) is attached to both sides of the seat frame (1) and the back frame (2), and the seat frame (1) and the armrest frame (3) are provided with a plurality of second connection interfaces (5); the lower end of the armrest frame (3) is lower than the lower end of the seat frame (1), so that the armrest frame (3) can be supported on the ground, or the lower end of the armrest frame (3) is flush with the lower end of the seat frame (1), and the bottom of the seat frame (1) is provided with a plurality of detachable feet (6), and the feet (6) and the seat frame (1) are provided with a plurality of third connection interfaces (7).

2. A modular seating arrangement according to claim 1, characterized in that: The seat frame (1) is a square frame with a storage space (100) inside. The frame includes two symmetrically arranged side support iron frames (8), and two upper support iron pipes (9) and two lower support iron pipes (10) welded between the two side support iron frames (8). A mounting platform (11) is welded to the upper support iron pipes (9) and the side support iron frames (8) on the upper rear side of the seat frame (1). The upper end of the mounting platform (11) is provided with multiple first connection interfaces (4). The back frame (2) includes a base plate (12) and multiple back support beams welded to the upper sides of the base plate (12). The upper end of the multiple back support beams is welded with fixing rods (14). The base plate (12) is mounted on the mounting platform (11). The base plate (12) is provided with multiple first connection interfaces (4).

3. A modular seating arrangement according to claim 2, characterized in that: The upper inner side of the seat frame (1) is welded with a connecting iron pipe (15) between two side support iron frames (8). The connecting iron pipe (15) and the upper support iron pipe (9) are arranged at the same level. The upper support iron pipe (9) away from the connecting iron pipe (15) and the upper and lower ends of the connecting iron pipe (15) are provided with multiple fixing holes (16). The elastic component is connected between them. The elastic component includes multiple serpentine springs (17). The two ends of the serpentine springs (17) are connected with hooks (18). The upper and lower sides of the inner wall of the hooks (18) are provided with protrusions (19) that cooperate with the fixing holes (16).

4. A modular seating arrangement according to claim 3, characterized in that: Below the multiple serpentine springs (17), PVC fixing frame strips (20) and PVC fixing straight strips (22) are laid. The PVC fixing frame strips (20) and PVC fixing straight strips (22) are fixed to the multiple serpentine springs (17) by fixing sleeves.

5. A modular seating arrangement according to claim 2, characterized in that: The side support iron frame (8) and the handrail frame (3) are respectively provided with a plurality of second connection interfaces (5).

6. A modular seating arrangement according to claim 5, characterized in that: The lower end of the armrest frame (3) is lower than the lower end of the seat frame (1). A horizontal beam (23) is welded inside the armrest frame (3) to form two assembly through holes (24) inside the armrest frame (3). The second connection interface (5) is opened on the horizontal beam (23). Two vertical beams (25) are welded in the upper assembly through hole (24). The two vertical beams (25) are respectively hinged to a table board (27) through hinges (26). The lower end of the armrest frame (3) is supported on the ground.

7. A modular seating arrangement according to claim 5, characterized in that: The lower end of the armrest frame (3) is flush with the lower end of the seat frame (1). An assembly through hole (24) is formed in the armrest frame (3). Two vertical beams (25) are welded longitudinally in the assembly through hole (24). The two vertical beams (25) are respectively hinged to a table board (27) through hinges (26). The lower end of the armrest frame (3) is flush with the lower end of the seat frame (1).

8. A modular seating arrangement according to claim 6 or 7, characterized in that: The outer surface of at least one side of the tabletop (27) has multiple pockets (28).

9. A modular seating arrangement according to claim 7, characterized in that: The support leg (6) includes a connecting piece (29) and a support body welded to the bottom of the connecting piece (29); the connecting piece (29) is provided with the plurality of third connection interfaces (7), the plurality of third connection interfaces (7) including a connecting round hole (30) and two waist-shaped holes (31).

Citation Information

Patent Citations

  • Strong-stability wooden sofa frame

    CN221750030U