Double-layer soft cushion sleeving sofa

By using a double-layered upholstered sofa design, combined with components such as Velcro, serpentine springs, and an anti-static layer, the issues of sofa comfort and static electricity adsorption are resolved, resulting in better support and anti-static performance, and enhancing the user experience.

CN223830685UActive Publication Date: 2026-01-27HENAN BOXUAN FURNITURE CO LTD
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Patent Information

Application Number
CN202520502371.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-01-27
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing sofa cushions offer poor comfort, fail to effectively support and adapt to the body's curves, and are prone to attracting dust and other contaminants due to static electricity.

Method used

Featuring a double-layer structure, including a soft protective cover, Velcro, serpentine springs, a sponge support layer, and an anti-static layer, it provides elastic support, anti-static properties, and breathability, ensuring the seat cushion stays firmly in place and doesn't slip.

Benefits of technology

It improves seating comfort, enhances sofa support and adaptability, prevents static electricity from attracting dust, and keeps the sofa clean and aesthetically pleasing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sofas, and discloses a double-layer soft cushion sleeving sofa, which comprises a sofa, two hook-and-loop fastener mother surfaces are fixedly mounted on the upper surface of the sofa, and a protection mechanism is arranged on the sofa. The protection mechanism comprises a soft cushion protection sleeve, a zipper, a magic tape sub-surface, a bandage, a serpentine spring, a sponge supporting layer, a piston rod, a damper, a spring, an outer protection layer, an anti-static layer, a conductive fiber layer, a waterproof layer and a heat preservation layer, and the soft cushion protection sleeve is arranged on the upper surface of the sofa; according to the sofa with the double-layer soft cushion, the soft cushion protection sleeve can be detached for cleaning in a pulling force mode, the serpentine spring and the bandage are arranged in the soft cushion protection sleeve, elastic deformation can be made according to body pressure when a person sits down, basic supporting and buffering are provided, adjustment can be further carried out along with actions and postures of the human body, and the sofa with the double-layer soft cushion is convenient to use. The matching of the two can better fit the curve of the human body, reduce the pressure points of the body and make people feel more comfortable.
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Description

Technical Field

[0001] This utility model relates to the field of sofa technology, specifically to a double-layered upholstered sofa. Background Technology

[0002] A sofa is a type of upholstered furniture, a multi-seat chair with armrests on both sides. Originating in Western countries, it was later introduced to Asia and became a key element of Western-style decoration or modern home design. The frame is made of wood or steel, lined with cotton and other foam materials, making it generally comfortable.

[0003] Soft cushions are as convenient and lightweight as ordinary chairs, and have the comfort of sofas, making them popular and well-received. They generally consist of a fabric cover and filling particles or foam materials inside the cover to ensure softness and comfort. However, when in use, if the interior is only filled with foam materials such as sponge, it cannot guarantee softness and comfort. Therefore, a double-layer soft cushion sofa is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a double-layered cushioned sofa, which solves the problem of poor seating comfort of sofa cushions.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-layered upholstered sofa, comprising a sofa, wherein two Velcro fasteners are fixedly installed on the upper surface of the sofa;

[0008] The sofa is equipped with a protective mechanism, which includes a soft cushion cover, zipper, Velcro surface, webbing, serpentine spring, sponge support layer, piston rod, damper, spring, outer protective layer, antistatic layer, conductive fiber layer, waterproof layer, and heat insulation layer.

[0009] Preferably, the cushion cover is disposed on the upper surface of the sofa, and two Velcro fasteners are fixedly installed on the lower surface of the cushion cover;

[0010] The zipper is located on the front surface of the padded protective cover.

[0011] Preferably, a plurality of the bandages are fixedly installed in the inner wall of the soft pad protective cover, and a plurality of serpentine springs are fixedly installed in the inner wall of the soft pad protective cover;

[0012] The sponge support layer is located inside the inner wall of the cushioned protective cover.

[0013] Preferably, a plurality of piston rods are fixedly installed on the lower surface of the sponge support layer, and a plurality of springs are fixedly installed on the lower surface of the sponge support layer;

[0014] Multiple dampers are fixedly installed on the lower surface of multiple springs, and multiple dampers are slidably sleeved on the outer surface of multiple piston rods.

[0015] Preferably, the outer protective layer is disposed on the outer surface of the soft pad protective cover. The outer protective layer is composed of base warp and base weft. The base warp and base weft material is a twill woven fabric, which is woven by interlacing and floating the base warp and base weft. After weaving in this way, the surface of the base layer of the fabric has a grid-like twill pattern, which has the characteristics of being wrinkle-resistant, wear-resistant, soft to the touch, elastic, and warm.

[0016] Preferably, the antistatic layer is connected to the lower surface of the outer protective layer. The antistatic layer is composed of conductive fibers, which are chemical fibers, metal fibers, carbon fibers, etc. spun from polymers mixed with conductive media, thereby preventing the outer protective layer from adsorbing dust and other pollutants due to static electricity.

[0017] The lower surface of the antistatic layer is connected to a conductive fiber layer. The conductive fiber layer is made of chemical fibers, metal fibers, carbon fibers, etc., spun from polymers mixed with conductive media. It has superior static elimination and prevention properties compared to antistatic fibers.

[0018] Preferably, the lower surface of the conductive fiber layer is connected to a waterproof layer. The waterproof layer has vent holes with a pore size larger than the diameter of a gas molecule and smaller than the diameter of a water molecule. The presence of vent holes helps to enhance the breathability of the fabric, and the pore size of the vent holes is smaller than the diameter of a water molecule, ensuring the stability of the waterproof performance.

[0019] The waterproof layer is connected to the insulation layer on the lower surface. The insulation layer is composed of a double-layered diagonal mesh and a down filling layer. The double-layered diagonal mesh is woven in a grid pattern, and the intersection of the grid is provided with air holes to facilitate the ventilation of the sofa cover and prevent it from becoming stuffy.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a double-layered upholstered sofa, which has the following beneficial effects:

[0022] 1. This double-layered upholstered sofa allows for easy removal and cleaning of the upholstery cover via a tension setting. Inside the upholstery cover, serpentine springs and bandages provide elastic deformation based on body pressure when a person sits down, offering basic support and cushioning. Furthermore, the upholstery can be adjusted according to the body's movements and postures. Together, these features better conform to the body's curves, reducing pressure points and making the user feel more comfortable.

[0023] 2. This double-layered upholstered sofa uses Velcro front and Velcro back to provide precise fixing points for the seat cushions, ensuring that the seat cushions remain in a specific position on the sofa, preventing them from sliding around, making it convenient for users to sit on, and also making the sofa look neater and more beautiful overall.

[0024] 3. This double-layer upholstered sofa uses chemical fibers, metal fibers, carbon fibers, etc., spun with conductive media mixed into the antistatic layer and conductive fiber layer to prevent the base layer of the fabric from adsorbing dust and other pollutants due to static electricity. It has excellent static elimination and prevention properties, improving the antistatic performance of the sofa. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a double-layered upholstered sofa structure according to the present invention;

[0026] Figure 2 This is a schematic diagram of the sofa structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the soft pad protective cover of this utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the soft pad protective cover of this utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the soft pad protective cover of this utility model;

[0030] Figure 6 This utility model Figure 5 Enlarged view of the structure at point A in the middle;

[0031] Figure 7 This utility model Figure 5 Enlarged view of the structure at point B in the middle.

[0032] In the picture: 1. Sofa; 2. Cushion cover; 3. Zipper; 4. Hook and loop fastener front; 5. Hook and loop fastener back; 6. Webbing; 7. Snake spring; 8. Sponge support layer; 9. Piston rod; 10. Damper; 11. Spring; 12. Outer protective layer; 13. Antistatic layer; 14. Conductive fiber layer; 15. Waterproof layer; 16. Insulation layer. Detailed Implementation

[0033] 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.

[0034] Please see Figure 1-7 This utility model provides a new technical solution: a double-layered upholstered sofa, including a sofa 1, with two Velcro fasteners 4 fixedly installed on the upper surface of the sofa 1;

[0035] The sofa 1 is equipped with a protective mechanism, which includes a soft cushion cover 2, a zipper 3, a Velcro surface 5, a webbing 6, a serpentine spring 7, a sponge support layer 8, a piston rod 9, a damper 10, a spring 11, an outer protective layer 12, an antistatic layer 13, a conductive fiber layer 14, a waterproof layer 15, and a heat insulation layer 16.

[0036] Furthermore, the cushion cover 2 is set on the upper surface of the sofa 1, and the two Velcro sides 5 are fixedly installed on the lower surface of the cushion cover 2.

[0037] The zipper 3 is located on the front surface of the soft pad protective cover 2.

[0038] Furthermore, multiple bandages 6 are fixedly installed in the inner wall of the soft pad protective cover 2, and multiple serpentine springs 7 are fixedly installed in the inner wall of the soft pad protective cover 2;

[0039] The sponge support layer 8 is disposed in the inner wall of the soft pad protective cover 2.

[0040] Furthermore, multiple piston rods 9 are fixedly installed on the lower surface of the sponge support layer 8, and multiple springs 11 are fixedly installed on the lower surface of the sponge support layer 8;

[0041] Among them, multiple dampers 10 are fixedly installed on the lower surface of multiple springs 11, and multiple dampers 10 are slidably sleeved on the outer surface of multiple piston rods 9.

[0042] Furthermore, the outer protective layer 12 is set on the outer surface of the soft pad protective cover 2. The outer protective layer 12 is composed of base warp and base weft. The base warp and base weft material is a twill woven fabric, which is woven by interlacing the base warp and base weft and making them rise and fall. After weaving in this way, the surface of the base layer of the fabric has a grid-like twill pattern, which has the characteristics of being wrinkle-resistant, wear-resistant, soft to the touch, elastic, and warm.

[0043] Furthermore, the antistatic layer 13 is connected to the lower surface of the outer protective layer 12. The antistatic layer 13 is composed of conductive fibers. Conductive fibers refer to chemical fibers, metal fibers, carbon fibers, etc., spun by mixing conductive media into polymers, thereby preventing the outer protective layer 12 from adsorbing dust and other pollutants due to static electricity.

[0044] The lower surface of the antistatic layer 13 is connected to the conductive fiber layer 14. The conductive fiber layer 14 is a chemical fiber, metal fiber, carbon fiber, etc., spun from a polymer mixed with a conductive medium. It has a much better performance in eliminating and preventing static electricity than antistatic fibers.

[0045] Furthermore, the lower surface of the conductive fiber layer 14 is connected to the waterproof layer 15. The waterproof layer 15 is provided with vent holes. The vent holes have a diameter larger than the diameter of gas molecules and smaller than the diameter of water molecules. The presence of vent holes helps to enhance the breathability of the fabric, and the vent holes have a diameter smaller than the diameter of water molecules, ensuring the stability of the waterproof performance.

[0046] Among them, the lower surface of the waterproof layer 15 is connected to the insulation layer 16. The insulation layer 16 is composed of a double-layered diagonal mesh and a down layer filling. The double-layered diagonal mesh is woven in a grid pattern, and the intersection of the grid is provided with air holes to facilitate the sofa cover to be breathable and not stuffy.

[0047] This double-layered upholstered sofa features a removable protective cover 2 for cleaning via a tension setting 3. Inside the protective cover, a serpentine spring 7 and webbing 6 elastically deform according to body pressure when a person sits, providing basic support and cushioning. These elements further adjust to the body's movements and postures, working together to better conform to the body's curves, reducing pressure points and enhancing comfort. The double-layered upholstered sofa uses Velcro front and back panels to provide precise anchor points for the seat cushions, ensuring they remain in a specific position and preventing slippage, facilitating user seating and making the sofa look cleaner and more aesthetically pleasing. The double-layered upholstered sofa incorporates conductive media into its anti-static and conductive fiber layers, using chemical fibers, metal fibers, or carbon fibers to prevent the fabric base layer from attracting dust and other contaminants due to static electricity. This provides excellent anti-static properties, improving the sofa's overall anti-static performance.

[0048] Structural Description:

[0049] Sofa 1: As the main supporting structure of the entire anti-static sofa, it provides a basic platform for users to sit and lean back, and supports the weight of the seat cushion, backrest and other components as well as the human body.

[0050] Soft cushion cover 2: Protects the internal structure of the sofa, such as the serpentine springs and sponge support layer, from external wear, stains and moisture; provides a certain degree of decoration, and can be matched with the home environment by choosing different colors, materials and styles.

[0051] Zipper 3: Makes it easy to remove the cushion cover from the sofa for cleaning or replacement, and also facilitates the inspection and maintenance of the sofa's interior.

[0052] Velcro side 4: This allows the cushion cover to be securely fixed to the sofa, preventing it from shifting during use and ensuring its stability and fit.

[0053] Webbing 6: Assists the serpentine springs in supporting the sponge support layer, distributing pressure, making the sofa's stress distribution more even, and improving the sofa's durability and comfort.

[0054] Snake spring 7: It provides the main support for the sofa in a rebound manner, bears the weight of the human body, releases pressure, and allows the sofa to return to its original shape after use, thus extending the service life of the sofa.

[0055] Sponge support layer 8: Provides a soft and comfortable seating experience, cushions the pressure of the human body on the sofa, further disperses the force transmitted by the serpentine springs, and maintains the shape of the sofa, making the sofa surface smoother.

[0056] Piston rod 9: In conjunction with the damper and spring, it serves as a connector and guide, ensuring that the sponge support layer can move smoothly up and down when under force, and to a certain extent limiting its range of motion to ensure the stability of the structure.

[0057] Damper 10: Slows down the movement speed of the foam support layer, absorbs and dissipates vibration energy, and allows the sofa to slowly return to its original shape after being subjected to pressure, avoiding discomfort caused by the spring rebounding too quickly, and improving the comfort and stability of the sofa.

[0058] Spring 11: Similar to a serpentine spring, it provides additional elastic support to the foam support layer, enhancing the overall elasticity and resilience of the sofa, allowing it to better adapt to different pressures and weights.

[0059] Outer protective layer 12: As the outermost layer of the sofa, it is in direct contact with the outside world, playing a role in preventing wrinkles and wear, and protecting the internal structure of the sofa from physical damage; it has a soft feel and good elasticity, enhancing the touch and texture of the sofa; it has strong heat retention, which helps to maintain the indoor temperature and provides a more comfortable user experience.

[0060] Antistatic layer 13: Composed of conductive fibers, it can conduct static electricity generated on the sofa surface in a timely manner, prevent static electricity accumulation, avoid attracting dust and other pollutants due to static electricity, keep the sofa clean, and at the same time prevent users from being shocked by static electricity when touching the sofa.

[0061] Conductive fiber layer 14: It has superior static elimination and prevention performance compared to antistatic fibers, further enhancing the antistatic ability of the sofa and ensuring that the sofa will not generate static electricity problems during use.

[0062] Waterproof layer 15: It has ventilation holes with a pore size larger than the diameter of gas molecules and smaller than the diameter of water molecules. This ensures that the sofa has good breathability, allowing air to circulate inside and outside the sofa, while preventing moisture from penetrating into the sofa and avoiding mold and damage caused by dampness, thus extending the service life of the sofa.

[0063] Insulation layer 16: It consists of a double-layered diagonal mesh and a down layer. The double-layered diagonal mesh is woven in a grid pattern, and the intersection of the grid is provided with air holes to facilitate the sofa cover to breathe and not be stuffy. At the same time, it plays a role in heat preservation, making users feel warmer and more comfortable when sitting or lying on the sofa in winter.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-layered upholstered sofa, comprising a sofa (1), characterized in that: Two Velcro fasteners (4) are fixedly installed on the upper surface of the sofa (1); The sofa (1) is equipped with a protective mechanism, which includes a soft cushion cover (2), a zipper (3), a Velcro surface (5), a bandage (6), a serpentine spring (7), a sponge support layer (8), a piston rod (9), a damper (10), a spring (11), an outer protective layer (12), an antistatic layer (13), a conductive fiber layer (14), a waterproof layer (15), and a heat insulation layer (16).

2. A double-layered upholstered sofa according to claim 1, characterized in that: The cushion cover (2) is set on the upper surface of the sofa (1), and the two Velcro sides (5) are fixedly installed on the lower surface of the cushion cover (2); The zipper (3) is located on the front surface of the soft protective cover (2).

3. A double-layered upholstered sofa according to claim 1, characterized in that: Multiple bandages (6) are fixedly installed in the inner wall of the soft pad protective cover (2), and multiple serpentine springs (7) are fixedly installed in the inner wall of the soft pad protective cover (2); The sponge support layer (8) is located in the inner wall of the soft pad protective cover (2).

4. A double-layered upholstered sofa according to claim 1, characterized in that: Multiple piston rods (9) are fixedly installed on the lower surface of the sponge support layer (8), and multiple springs (11) are fixedly installed on the lower surface of the sponge support layer (8); Among them, multiple dampers (10) are fixedly installed on the lower surface of multiple springs (11), and multiple dampers (10) are slidably sleeved on the outer surface of multiple piston rods (9).

5. A double-layered upholstered sofa according to claim 1, characterized in that: The outer protective layer (12) is set on the outer surface of the soft pad protective cover (2). The outer protective layer (12) is composed of the base warp and the base weft. The base warp and the base weft are made of twill woven fabric, which is woven by interlacing the base warp and the base weft and making them float up and down. After weaving in this way, the surface of the base layer of the fabric is a grid-like twill weave, which has the characteristics of being wrinkle-resistant, wear-resistant, soft to the touch, elastic, and warm.

6. A double-layered upholstered sofa according to claim 1, characterized in that: The antistatic layer (13) is connected to the lower surface of the outer protective layer (12). The antistatic layer (13) is composed of conductive fibers. Conductive fibers refer to chemical fibers or metal fibers, carbon fibers, etc., spun by mixing conductive media into polymers, thereby preventing the outer protective layer (12) from adsorbing dust and other pollutants due to static electricity. Among them, the lower surface of the antistatic layer (13) is connected to the conductive fiber layer (14). The conductive fiber layer (14) is a chemical fiber or metal fiber, carbon fiber, etc. spun by mixing conductive medium into polymer. It has excellent static elimination and prevention performance far superior to that of antistatic fiber.

7. A double-layered upholstered sofa according to claim 1, characterized in that: The lower surface of the conductive fiber layer (14) is connected to the waterproof layer (15). The waterproof layer (15) is provided with vent holes. The vent holes have a diameter larger than the diameter of gas molecules and smaller than the diameter of water molecules. The presence of vent holes helps to enhance the breathability of the fabric. Furthermore, the vent holes have a diameter smaller than the diameter of water molecules, which ensures the stability of the waterproof performance. Among them, the lower surface of the waterproof layer (15) is connected to the insulation layer (16), which is composed of a double-layered diagonal mesh and a down layer. The double-layered diagonal mesh is woven in a grid pattern, and the intersection of the grid pattern is provided with air holes to facilitate the sofa cover to be breathable and not stuffy.