A compressed sponge sofa base structure and a sofa thereof

Abstract

The utility model belongs to sofa technical field especially relates to a kind of compressed sponge sofa base structure and sofa thereof, it includes: lower connecting structure, at least two settings, located the upper portion of the base;Including positioning boss and the annular groove being set at the periphery of the positioning boss, the cross section of the positioning boss is non-circular, the inside of the annular groove is equipped with the annular antiskid strip compatible with it;Upper connecting structure, with the same number of lower connecting structure and position corresponding, located the bottom of cushion;Including positioning hole and annular clamping block, the shape of the positioning hole is compatible with the cross section shape of the positioning boss, to cooperate with the positioning boss and realize anti-rotation;The annular clamping block is embedded in the annular groove, and its bottom and the antiskid strip contact extrusion friction is generated.

Description

Technical Field

[0001] This utility model belongs to the field of sofa technology, and in particular relates to a compressed sponge sofa base structure and the sofa thereof. Background Technology

[0002] With the increasing popularity of modular furniture, sofas using compressible foam have become an important development direction due to their extreme convenience in transportation and storage. Currently, some detachable sofas have appeared on the market, with the seat cushions and bases connected by simple interlocking holes and Velcro. However, simple interlocking holes cannot effectively prevent the seat cushions from rotating and sliding horizontally during use, resulting in poor stability; Velcro connections are prone to failure due to fiber aging after long-term use, and their anti-slip ability is weak, failing to meet the dual requirements of compressible foam sofas for a stable and convenient connection structure. Utility Model Content

[0003] The purpose of this utility model is to provide a compressed sponge sofa base structure to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A compressed foam sofa base structure, comprising: The lower connecting structure, at least two in number, is located on the upper part of the base; it includes a positioning boss and an annular groove around the positioning boss. The positioning boss has a non-circular cross-section, and the annular groove has an annular anti-slip strip that fits it. The upper connecting structure, which has the same number and corresponding position as the lower connecting structure, is located at the bottom of the seat cushion; it includes a positioning hole and an annular locking block. The shape of the positioning hole is adapted to the cross-sectional shape of the positioning boss, so as to cooperate with the positioning boss to achieve anti-rotation; the annular locking block is embedded in the annular groove, and its bottom contacts the anti-slip strip to generate squeezing friction.

[0005] As a further improvement of this utility model, the cross-section of the positioning boss is cross-shaped, and the positioning hole is a cross-shaped hole adapted to the positioning boss.

[0006] As a further improvement of this utility model, the bottom of the anti-slip strip is bonded to the bottom of the annular groove.

[0007] As a further improvement of this utility model, a sealing strip is provided on the inner wall of the positioning hole.

[0008] As a further improvement of this utility model, the lower connecting structure also includes a magic female buckle, which is disposed at the corner of the upper part of the base; The upper connecting structure also includes a magic female buckle that mates with the magic female buckle, and the magic female buckle is located at the corner of the bottom of the seat cushion.

[0009] As a further improvement of this utility model, the upper connecting structure and the lower connecting structure are arranged in three groups, distributed in a triangular pattern.

[0010] A sofa includes a compressed foam sofa base structure as described above, as well as a base, backrest, side seats, and seat cushions; The sofa base is fixedly connected to the side seats on both sides, the backrest is connected to the rear, and the seat cushion is connected to the upper part through the sofa base structure.

[0011] The beneficial effects of adopting the above technical solution are as follows: This invention reduces the possibility of horizontal rotation of the seat cushion by using a non-circular positioning boss that fits tightly with the positioning hole. Simultaneously, the annular locking block embeds into the groove with anti-slip strips, generating continuous compression friction to provide resistance against horizontal slippage and vertical tilting, resulting in a more stable connection than simple plug-in or easily aging Velcro methods. The connection and separation processes require no auxiliary tools or complex operations. During installation, simply align the positioning hole of the seat cushion with the positioning boss on the base and lower it; the weight of the components is sufficient for positioning and friction locking. During disassembly, simply lift the seat cushion vertically upwards to overcome friction and separate it. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is another angular structural schematic diagram of Embodiment 1 of this utility model; Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention; The markings in the diagram are as follows: 1. Base, 2. Positioning boss, 3. Annular groove, 4. Anti-slip strip, 5. Seat cushion, 6. Positioning hole, 7. Annular locking block, 8. Magic female buckle, 9. Magic male buckle, 10. Backrest, 11. Side seat. Detailed Implementation

[0013] To better understand the purpose, structure, and function of this utility model, a clear and complete description of this utility model will be provided below in conjunction with the accompanying drawings. Example

[0014] like Figures 1-2The illustrated compressed foam sofa base structure includes a lower connecting structure and an upper connecting structure for connecting the sofa base 1 and the seat cushion 5. The base 1 is the main supporting structure of the sofa, made of a wooden frame, metal profile, or high-strength engineering plastic; the seat cushion 5 is a high-resilience compressed foam module, which can be independently compressed to reduce volume during transportation and unfolded to restore its original shape when in use.

[0015] At least two lower connecting structures are provided, located on the upper part of the base 1, including a positioning boss 2 and an annular groove 3 disposed around the positioning boss 2. The cross-section of the positioning boss 2 is non-circular, and the interior of the annular groove 3 is provided with a matching annular anti-slip strip 4. As a preferred embodiment with excellent anti-rotation effect, the cross-section of the positioning boss 2 in this embodiment is cross-shaped. The anti-slip strip 4 is preferably made of a material with a high coefficient of friction and good elasticity, such as rubber or silicone. To ensure that the anti-slip strip 4 does not fall out of the groove during long-term use, its bottom can be glued and fixed to the bottom of the annular groove 3 with adhesive.

[0016] The upper connecting structure corresponds one-to-one with the lower connecting structure in terms of quantity and position. Located at the bottom of the seat cushion, it includes positioning holes 6 and annular locking blocks 7. The positioning holes 6 are located at the bottom of the seat cushion 5, and their shape matches the cross-sectional shape of the positioning boss 2 in the lower connecting structure. For example, corresponding to the cross-shaped positioning boss 2, the positioning hole 6 is a cross-shaped hole that matches the positioning boss 2. To ensure a tighter positioning fit, eliminate gaps, and buffer vibrations, a sealing strip (not shown in the figure) is provided on the inner wall of the positioning hole 6. This sealing strip can be made of rubber or foam material. The annular locking block 7 is precisely aligned with the annular groove 3 on the base 1 and is embedded in the annular groove 3.

[0017] When the cushion 5 needs to be installed onto the base 1, the operator simply aligns the positioning hole 6 on the bottom of the cushion 5 with the positioning protrusion 2 on the base 1, and then lowers it vertically. During this process, the non-circular, cross-shaped positioning protrusion 2 engages with the corresponding positioning hole 6. Due to the interlocking effect of the geometric shapes, the cushion 5 is effectively prevented from rotating in the horizontal plane. Simultaneously, the annular locking block 7 on the bottom of the cushion 5 engages with the annular groove 3 of the base 1. The lower surface of the annular locking block 7 contacts and presses against the anti-slip strip 4 in the groove. The elastic deformation of the anti-slip strip 4 generates a large static friction force between them. This friction force provides resistance against the horizontal sliding and back-and-forth tilting of the cushion 5, thus firmly holding the cushion 5 on the base 1.

[0018] When cleaning or transportation is required, the user can simply lift the seat cushion 5 vertically upwards. Once the lifting force overcomes the maximum static friction between the annular locking block 7 and the anti-slip strip 4, the seat cushion 5 can be separated from the base 1. The entire process requires no tools, enabling quick assembly and disassembly. The separated seat cushion 5 and base 1 can be compressed and packaged as independent modules, greatly optimizing storage and transportation space.

[0019] In this embodiment, the upper connecting structure and the lower connecting structure are arranged in three groups in a triangular distribution to achieve the most stable surface support with the fewest connection points, preventing local warping of the seat cushion 5.

[0020] In addition, this embodiment may also include auxiliary connectors: the lower connecting structure further includes a magic female buckle 8, which is located at the corner of the upper part of the base 1; the upper connecting structure further includes a magic male buckle 9 that cooperates with the magic female buckle 8, which is located at the corner of the bottom of the cushion 5. In the daily use of the sofa, the stable connection of the cushion 5 mainly relies on the aforementioned positioning boss 2 and anti-slip strip 4 structure, with the adhesive force of the magic buckle serving as an auxiliary. During transportation and storage, the cushion 5 and the base 1 are pre-fixed by adhesive using the magic buckle to prevent internal components from being misaligned or damaged due to shaking or impact during logistics. Example

[0021] like Figure 3 The sofa shown includes a compressed sponge sofa base structure as described in Embodiment 1, and also includes a base 1, a backrest 10, a side seat 11, and a cushion 5; The sofa base 1 is fixedly connected to the side seats 11 on both sides, the backrest 10 is connected to the rear, and the seat cushion 5 is connected to the upper part through the sofa base structure.

[0022] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A compressed sponge sofa base structure, characterized in that: It includes: The lower connection structure is provided in at least two parts, located on the upper part of the base (1); including a positioning boss (2) and an annular groove (3) provided on the periphery of the positioning boss (2). The cross-section of the positioning boss (2) is non-circular, and the interior of the annular groove (3) is provided with an annular anti-slip strip (4) adapted to it. The upper connecting structure, which has the same number and position as the lower connecting structure, is located at the bottom of the seat cushion (5); it includes a positioning hole (6) and an annular locking block (7). The shape of the positioning hole (6) is adapted to the cross-sectional shape of the positioning boss (2) to cooperate with the positioning boss (2) to achieve anti-rotation; the annular locking block (7) is embedded in the annular groove (3), and its bottom contacts the anti-slip strip (4) to generate squeezing friction.

2. The compressed sponge sofa base structure according to claim 1, characterized in that: The cross-section of the positioning boss (2) is cross-shaped, and the positioning hole (6) is a cross-shaped hole that is adapted to the positioning boss (2).

3. The compressed sponge sofa base structure according to claim 1, characterized in that: The bottom of the anti-slip strip (4) is adhered to the bottom of the annular groove (3).

4. The compressed sponge sofa base structure according to claim 1, characterized in that: A sealing strip is provided on the inner wall of the positioning hole (6).

5. The compressed sponge sofa base structure according to claim 1, characterized in that: The lower connecting structure also includes a magic female buckle (8), which is located at the corner of the upper part of the base (1); The upper connecting structure also includes a magic female buckle (9) that cooperates with the magic female buckle (8), and the magic female buckle (9) is located at the corner of the bottom of the cushion (5).

6. The compressed sponge sofa base structure according to claim 1, characterized in that: The upper connecting structure and the lower connecting structure are arranged in three groups, forming a triangular distribution.

7. A sofa, characterized in that: Includes a compressed sponge sofa base structure as described in any one of claims 1-6, and a base (1), a backrest (10), a side seat (11), and a seat cushion (5); the side seats (11) are fixedly connected to both sides of the base (1), the backrest (10) is connected to the rear, and the seat cushion (5) is connected to the upper part through the sofa base structure.

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