Stable support seat bag structure and sofa seat bag

Abstract

The utility model relates to the field of furniture technology provides a stable seat bag structure and sofa seat bag of support, seat bag structure includes base, support sponge layer and return support unit, support sponge layer is located the upside of base, return support unit is located the upside of support sponge layer, return support unit includes the layer and multiple sets of elastic support layer, along the up and down direction of seat bag structure, the layer is arranged between two adjacent sets of elastic support layer, wherein a set of elastic support layer and support sponge layer are abutted, each set of elastic support layer includes a plurality of elastic members, a plurality of elastic members are arrayed, wherein the elastic member orthographic projection of two adjacent sets of elastic support layer is set in horizontal direction and is staggered.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a stable support seat cushion structure and a sofa seat cushion. Background Technology

[0002] Traditional sofa seat cushions generally use foam as the core filling material. While this approach has the advantages of low cost and easy processing, its support system has significant shortcomings: on the one hand, foam is prone to irreversible collapse and deformation after long-term pressure, causing the seating feel to gradually harden over time; on the other hand, conventional foam has weak resilience and performs poorly in dynamic support scenarios, making it difficult to achieve adaptive support adjustment for different user sitting postures. Utility Model Content

[0003] This invention provides a stable support seat cushion structure to solve the problem that traditional sofa seat cushions, which use foam filling as a support structure, have poor comfort.

[0004] This utility model provides a stable support seat structure, including: Base; A supporting sponge layer is located on the upper side of the base; A return support unit is provided on the upper side of the support sponge layer. The return support unit includes a partition and multiple sets of elastic support layers. Along the vertical direction of the seat structure, the partition is arranged between two adjacent sets of elastic support layers, and one set of elastic support layers abuts against the support sponge layer. Each set of elastic support layers includes multiple elastic elements, which are arranged in an array. The elastic elements of adjacent sets of elastic support layers are staggered in the horizontal direction when projected onto each other.

[0005] According to the present invention, a stable support seat structure is provided, wherein the elastic element is a columnar structure.

[0006] According to the stable support seat structure provided by this utility model, in the plurality of elastic support layers, the elastic element of at least one set of elastic support layers is a cylindrical spring.

[0007] According to the present invention, a stable support seat structure is provided, wherein the partition layer is a latex layer.

[0008] According to the present invention, a stable support seat structure is provided, the seat structure further includes a support limiting unit, the support limiting unit is disposed on the upper side of the support sponge layer, the support limiting unit and the support sponge layer form a receiving cavity, the receiving cavity is used to receive and limit the displacement of the return support unit relative to the support sponge layer; Along the vertical direction of the seat structure, at least the upper wall of the receiving cavity is configured as a deformable structure and can act on the return support unit, wherein the return support unit can drive the upper wall of the receiving cavity to reset.

[0009] According to the stable support seat structure provided by this utility model, the support limiting unit includes: Two sets of limiting sponge layers are arranged at intervals on the upper side of the supporting sponge layer, and the return support unit is located between the two sets of limiting sponge layers; The horsehair layer has its two ends abutting against the upper surfaces of the two sets of limiting sponge layers, and the lower surface of the horsehair layer abutting against the upper surface of the return support unit.

[0010] According to the present invention, a stable support seat structure is provided, wherein the support limiting unit further includes a cotton layer located on the upper side of the horsehair layer, and the cross-sectional area of ​​the cotton layer and the horsehair layer are equal.

[0011] According to the present invention, a stable support seat structure is provided, wherein the base includes a support frame and an elastic structure, the support frame has a cavity, and the elastic structure is disposed in the cavity; The elastic structure abuts against the supporting sponge layer.

[0012] According to the present invention, a stable support seat structure is provided, wherein the elastic structure is one of a spring layer or an arched elastic plate.

[0013] This utility model also provides a sofa seat cushion, including an outer layer and the aforementioned stable support seat cushion structure, wherein the outer layer covers the seat cushion structure.

[0014] The stable support seat structure provided by this utility model has a base that provides a solid support foundation to prevent structural collapse and deformation and improve overall durability. By providing a return support unit, multiple elastic elements of the elastic support layer are arranged in an array, and the corresponding elastic elements of two adjacent groups of elastic support layers are arranged with staggered orthographic projection to disperse pressure and form dynamic support, avoid local collapse and improve the uniformity of sitting comfort.

[0015] One group of elastic support layers has multiple elastic elements that abut against the support sponge layer, which retains the softness and wrapping properties of the sponge while enhancing the support through the rebound force of the elastic elements. The partition layer separates the adjacent elastic support layers to avoid the impact caused by hard contact, making the force more gentle, while maintaining the independent deformation capacity of each layer. Compared with related technologies, this utility model adds a return support unit on the basis of the support sponge layer, which increases the service life, is not easy to collapse, and improves the overall support and dynamic comfort through reasonable distribution. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the sofa seat cushion provided by this utility model, wherein the elastic structure is a spring layer.

[0018] Figure 2 A schematic diagram of another embodiment of the sofa seat cushion provided by this utility model is shown, wherein the elastic structure is an arched elastic plate.

[0019] Figure label: 100. Base; 110. Support frame; 111. Support feet; 120. Spring layer; 130. Arched elastic plate; 140. Linkage belt; 200, Supporting sponge layer; 300, Returning support unit; 310, Partition layer; 320, Elastic support layer; 321, Elastic element; 400, Support limiting unit; 410, Limiting sponge layer; 420, Horsehair layer; 430, Cotton layer; 500, Outer layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The following is combined Figures 1-2 This invention describes a stable support seat cushion structure and a sofa seat cushion. The seat cushion structure includes a base 100, a support sponge layer 200, and a return support unit 300. The support sponge layer 200 is located on the upper side of the base 100, and the return support unit 300 is located on the upper side of the support sponge layer 200. The return support unit 300 includes a partition 310 and multiple sets of elastic support layers 320. Along the vertical direction of the seat cushion structure, i.e., the sofa seat cushion, a partition 310 is arranged between two adjacent sets of elastic support layers 320, and one set of elastic support layers 320 abuts against the support sponge layer 200. Each set of elastic support layers 320 includes multiple elastic elements 321, which are arranged in an array. The orthographic projections of the elastic elements 321 of two adjacent sets of elastic support layers 320 are staggered in the horizontal direction.

[0022] The stable support seat structure provided by this utility model has a base 100 that provides a solid support foundation to prevent structural collapse and deformation and improve overall durability. By providing a return support unit 300, multiple elastic elements 321 of the elastic support layer 320 are arranged in an array, and the corresponding elastic elements 321 of two adjacent groups of elastic support layers 320 are arranged with staggered orthographic projections to disperse pressure and form dynamic support, avoid local collapse and improve the uniformity of sitting comfort.

[0023] One group of elastic support layers 320 has multiple elastic elements 321 that abut against the support sponge layer 200, which retains the soft wrapping properties of the sponge and enhances the support through the rebound force of the elastic elements 321; the partition layer 310 separates the adjacent elastic support layers 320 to avoid the impact caused by hard contact, making the force more gentle, while maintaining the independent deformation capacity of each layer. Compared with related technologies, this utility model adds a return support unit 300 to the support sponge layer 200, which increases the service life, is not easy to collapse, and improves the overall support and dynamic comfort through reasonable distribution.

[0024] It should be noted that, referring to Figure 1 and Figure 2 In some examples of this utility model, the sofa seat cushion includes an outer layer 500 and a seat cushion structure, with the outer layer 500 covering the seat cushion structure.

[0025] By adopting the above structure, the rigidity of the overall structure is enhanced through physical encapsulation, the relative displacement between components is reduced, and delamination and loosening caused by external impact or vibration are avoided, thereby improving the long-term durability of the seat.

[0026] It should be noted that in this embodiment, the outer layer 500 is a leather fabric layer. Leather itself has certain wear resistance, stain resistance and tear resistance (especially high-quality coated leather). As an outer layer, it can reduce the damage to the internal structure caused by friction and scratches during daily use.

[0027] Understandably, referring to Figure 1 and Figure 2 In some examples of this utility model, the base 100 includes a support frame 110 and an elastic structure. The support frame 110 has a cavity, and the elastic structure is disposed in the cavity. The elastic structure abuts against the supporting sponge layer 200.

[0028] With the above structure, the support frame 110 is flexibly connected to the upper support sponge layer 200 through its built-in elastic structure in the cavity. The elastic structure generates appropriate deformation and accurately transmits it to the support sponge layer 200, forming a soft and elastic support feeling - like stepping on slightly rebounding memory foam, while having a stable support base. The sitting feeling is comfortable and layered, which can effectively relieve pressure and maintain the stability and durability of the overall structure.

[0029] It should be noted that a certain distance is maintained between the outer wall of the support frame 110 and the inner wall of the chamber, thus naturally forming an annular support surface between them. This annular support surface can effectively support the outer periphery of the support sponge layer 200 located on it, not only providing stable support and positioning for the support sponge layer 200 and preventing it from shifting, slipping or excessively compressing and deforming when under force, but also guiding and dispersing the load from above, so that the outer periphery and the central part of the sponge layer are stressed together, thereby improving the uniformity and reliability of the overall buffering and support.

[0030] Specifically, in this embodiment, the support frame 110 is made of wood substrate (i.e., wooden frame). The materials are usually solid wood (such as pine, fir and other light hardwoods) or artificial boards (such as plywood and MDF). The specific type can be flexibly selected according to the actual load-bearing requirements, environmental adaptability and cost control requirements.

[0031] From a functional perspective, wooden frames, as a supporting foundation, can provide uniform mechanical support through the natural texture and toughness of wood (e.g., distributing the pressure of the load above and avoiding localized stress concentration). Furthermore, their moderate density and processing flexibility (e.g., easy cutting, drilling, and splicing) allow them to adapt to diverse structural design needs (e.g., shelves, frames, irregular supports). In addition, to further enhance performance, moisture-proofing treatments (e.g., applying wood wax oil, varnish, or environmentally friendly waterproof coatings), anti-corrosion treatments (e.g., impregnation with preservatives), or reinforcement treatments (e.g., embedding internal metal connectors or adding triangular structures) can be applied to the wooden frame surface, thereby expanding its applicability in humid environments, high-load scenarios, or long-term use conditions.

[0032] Of course, in other examples, the support frame 110 can also be made of other materials, such as a metal frame, which is not limited here.

[0033] More specifically, refer to Figure 1 In some examples of this utility model, the elastic structure is a spring layer 120. It can be understood that the elastic structure is composed of multiple cylindrical springs, one end of which is connected to one side wall of the chamber, and the other end is connected to the opposite side wall of the chamber; wherein, the base 100 also includes a linkage belt 140, which passes through the multiple cylindrical springs so that the multiple cylindrical springs move synchronously.

[0034] This design ensures that when any cylindrical spring is subjected to force and deforms, the deformation is transmitted to other cylindrical springs through the linkage belt 140, thereby enabling multiple cylindrical springs to generate the same or coordinated deformation response synchronously. The above structural design not only enhances the synergy and stability of the overall structure of the sofa seat, but also effectively improves the consistency of the elastic system's response to external stimuli, thereby achieving a more uniform energy absorption, buffering, or feedback effect, and further improving the user's comfort.

[0035] Of course, in other examples, the elastic structure can also be a thin metal sheet with an elastic modulus, storing and releasing elastic potential energy through bending, arching, or wave-like structures; or the elastic structure can also be an elastic rod, etc. Therefore, refer to Figure 2 In some other examples of this utility model, the elastic structure is an arched elastic plate 130, which is bent upwards and abuts against the supporting sponge layer 200. There can be one or more arched elastic plates 130 to provide dynamic support and pressure dispersion effects.

[0036] Understandably, referring to Figure 1 and Figure 2 In some examples of this utility model, the elastic element 321 has a columnar structure. The columnar elastic element 321, through its rigid structure in the vertical direction, can effectively distribute sitting pressure, providing uniform and stable downward pressure support, reducing the feeling of buttocks sinking, and making long-term sitting less tiring. It can quickly return to its original shape after being compressed, and in conjunction with the deformation characteristics of the elastic material, it dynamically responds to body movements (such as getting up or moving), maintaining a close fit and support while avoiding stiffness.

[0037] Reference Figure 1 and Figure 2 In some examples of this utility model, among the multiple sets of elastic support layers 320, at least one set of elastic support layers 320 has a cylindrical spring as its elastic element 321.

[0038] Specifically, refer to Figure 1 and Figure 2 In some examples of this utility model, the elastic support layer 320 consists of two sets, and the elastic element 321 of both sets of elastic support layers 320 is a cylindrical spring. Utilizing its axial directional elastic deformation characteristics, it can provide precise directional support and stable load-bearing capacity for the structure. At the same time, by combining with other elastic elements 321 to form a differentiated stiffness distribution, it optimizes the mechanical response of the overall seat structure, which not only enhances the compressive and buffering performance in key directions, but also improves the stability and durability of the system under dynamic loads.

[0039] Of course, in some other examples, the elastic element 321 of one set of elastic support layers 320 is a cylindrical spring, and the elastic element 321 of the other set of elastic support layers 320 is a rubber column. The combination of the two can give full play to the advantages of directional support and multi-directional buffering: the cylindrical spring provides precise axial stiffness and stable load bearing capacity, ensuring structural strength and compressive resistance in critical directions; the rubber column absorbs multi-directional vibration and impact through anisotropic elastic deformation, while using its damping characteristics to suppress high-frequency oscillations and reduce noise; the two work together to enhance the stability and durability of the overall support, and can adapt to multi-directional loads and dynamic disturbances, achieving complementary optimization of precise support and efficient vibration reduction.

[0040] Reference Figure 1 and Figure 2 In some examples of this utility model, the partition 310 is a latex layer. The partition 310, which is made of latex and is disposed between two sets of elastic support layers 320, can effectively buffer the hard contact between the elastic support layers 320, improve the softness and fit of the seating, and optimize pressure distribution and rebound performance, thereby enhancing the overall comfort experience.

[0041] Understandably, referring to Figure 1 and Figure 2 In some examples of this utility model, the seat structure also includes a support limiting unit 400, which is disposed on the upper side of the support sponge layer 200. The support limiting unit 400 and the support sponge layer 200 form a receiving cavity, which is used to receive and limit the displacement of the return support unit 300 relative to the support sponge layer 200. Along the vertical direction of the seat cushion structure, i.e. the sofa seat cushion, at least the upper wall of the receiving cavity is configured as a deformable structure and can act on the return support unit 300, wherein the return support unit 300 can drive the upper wall of the receiving cavity to reset.

[0042] With the above arrangement, the support limiting unit 400 and the support sponge layer 200 enclose a receiving cavity, confining the return support unit 300 within a specific space. This prevents excessive displacement or loosening under pressure, ensuring the overall stability and consistent response of the seat structure. At least the upper wall of the receiving cavity employs a deformable structure (such as flexible material or elastic design), which can moderately deform with the compression of the return support unit 300, thereby better conforming to the human body's sitting pressure distribution and improving the local fit and smooth transition comfort.

[0043] When the external force disappears, the return support unit 300 can drive the deformable upper wall to reset through its own elastic restoring force, causing the overall structure to return to its original position, ensuring that the sofa seat can maintain a stable support shape and resilience after multiple uses, extending its service life and maintaining a comfortable experience.

[0044] Understandably, referring to Figure 1and Figure 2 In some examples of this utility model, the support limiting unit 400 includes two sets of limiting sponge layers 410 and horsehair layers 420, which are arranged at intervals on the upper side of the support sponge layer 200, and the return support unit 300 is located between the two sets of limiting sponge layers 410. The two ends of the horsehair layer 420 abut against the upper surfaces of the two sets of limiting sponge layers 410, and the lower surface of the horsehair layer 420 abuts against the upper surface of the return support unit 300.

[0045] With the above arrangement, two sets of limiting sponge layers 410 are spaced apart on the upper side of the supporting sponge layer 200, with the return support unit 300 placed in the middle, forming an upper and lower limiting structure. This effectively prevents the return support unit 300 from shifting laterally or becoming loose as a whole when under pressure, ensuring that the seat structure is stable and responds consistently. The horsehair layer 420 abuts against the limiting sponge layer 410 at both ends and is attached to the return support unit 300 on the lower surface. It not only utilizes the natural elasticity and anti-compression properties of horsehair to provide a soft intermediate buffer layer, but also helps to disperse pressure, making the force more even and the touch more delicate.

[0046] The limiting foam layer 410 provides basic soft wrapping, the horsehair layer 420 enhances dynamic adaptability, and the return support unit 300 ensures support and rebound. The combination of the three achieves a composite function of "soft limiting + medium buffer + hard support", so that the sofa seat can be stably limited and gently responsive when under pressure, improving the comfort and structural durability of sitting for a long time.

[0047] Of course, in other examples, the aforementioned limiting sponge layer 410 can also be replaced with a limiting wooden board, etc., which is not limited here.

[0048] Reference Figure 1 and Figure 2 In some examples of this utility model, the support and limiting unit 400 further includes a cotton layer 430 located above the horsehair layer 420, and the cross-sectional areas of the cotton layer 430 and the horsehair layer 420 are equal. Adding a cotton layer 430 with a cross-sectional area equal to that of the horsehair layer 420 improves the fit and comfort, and also works in conjunction with the horsehair layer 420 to distribute pressure, enhancing the smooth transition and overall comfort of the seat structure.

[0049] It should also be noted that, referring to Figure 1 and Figure 2 In some examples of this utility model, the support frame 110 of the base 100 is provided with a support foot pad 111 at the bottom. The support foot pad 111 is usually made of rubber, silicone or plastic and is in direct contact with the ground. By increasing the contact area, the pressure is distributed to prevent the base 100 from sliding or the contact surface from being worn. If the foot pad has an anti-slip texture design, it can further improve the stability of the sofa seat in use.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stable supporting seat structure, characterized in that, include: Base (100); A supporting sponge layer (200) is located on the upper side of the base (100); A return support unit (300) is disposed on the upper side of the support sponge layer (200). The return support unit (300) includes a partition (310) and multiple sets of elastic support layers (320). Along the vertical direction of the seat structure, the partition (310) is arranged between two adjacent sets of elastic support layers (320), and one set of elastic support layers (320) abuts against the support sponge layer (200). Each set of elastic support layers (320) includes a plurality of elastic elements (321), which are arranged in an array, wherein the elastic elements (321) of two adjacent sets of elastic support layers (320) are offset in the horizontal direction by their orthographic projections.

2. The stable support seat structure according to claim 1, characterized in that, The elastic element (321) has a columnar structure.

3. The stable support seat structure according to claim 2, characterized in that, In the multiple sets of elastic support layers (320), the elastic element (321) of at least one set of elastic support layers (320) is a cylindrical spring.

4. The stable support seat structure according to claim 1, characterized in that, The partition (310) is a latex layer.

5. The stable support seat structure according to any one of claims 1 to 4, characterized in that, The seat structure also includes a support limiting unit (400), which is disposed on the upper side of the support sponge layer (200). The support limiting unit (400) and the support sponge layer (200) form a receiving cavity, which is used to receive and limit the displacement of the return support unit (300) relative to the support sponge layer (200). Along the vertical direction of the seat structure, at least the upper wall of the receiving cavity is configured as a deformable structure and can act on the return support unit (300), wherein the return support unit (300) can drive the upper wall of the receiving cavity to reset.

6. The stable support seat structure according to claim 5, characterized in that, The support limiting unit (400) includes: Two sets of limiting sponge layers (410) are arranged at intervals on the upper side of the supporting sponge layer (200), and the return support unit (300) is located between the two sets of limiting sponge layers (410); The horsehair layer (420) has its two ends abutting against the upper surfaces of the two sets of limiting sponge layers (410), and the lower surface of the horsehair layer (420) abutting against the upper surface of the return support unit (300).

7. The stable support seat structure according to claim 6, characterized in that, The support limiting unit (400) also includes a cotton layer (430) located on the upper side of the horsehair layer (420), and the cross-sectional areas of the cotton layer (430) and the horsehair layer (420) are equal.

8. The stable support seat structure according to claim 1, characterized in that, The base (100) includes a support frame (110) and an elastic structure. The support frame (110) has a cavity, and the elastic structure is disposed in the cavity. The elastic structure abuts against the supporting sponge layer (200).

9. The stable support seat structure according to claim 8, characterized in that, The elastic structure is either a spring layer (120) or an arched elastic plate (130).

10. A sofa seat cushion, characterized in that, It includes an outer layer (500) and a seat cushion structure with stable support as described in any one of claims 1 to 9, wherein the outer layer (500) covers the seat cushion structure.

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