A type of anti-collapse cushion structure

Abstract

This utility model discloses an anti-collapse cushion structure, belonging to the field of cushion technology. It includes a cushion cover with an internal cavity containing filling material. A support mechanism is also located within the cavity, comprising an inflation component, an elastic component, a support plate, and a support airbag. The inflation component and the support plate are both located within the cavity, and the support airbag is fixed to one side of the support plate. When a user leans against the cushion, the pressure is transmitted sequentially through three layers: the filling material (surface dispersion), the support airbag (secondary buffer to dissipate impact), and the elastic component (deep buffer to absorb remaining pressure). Each layer absorbs some pressure, preventing pressure concentration in a single area of ​​the back or waist, resulting in a more even pressure distribution, effectively reducing local muscle tension, and improving comfort during prolonged use.

Description

Technical Field

[0001] This utility model relates to the field of cushion technology, specifically to an anti-collapse cushion structure. Background Technology

[0002] Backrest cushions, as common accessories for enhancing the comfort of chairs, sofas, and other furniture, primarily function to provide support for the back and waist through their structure, distributing body pressure to alleviate fatigue from prolonged sitting. Most traditional backrest cushions on the market employ a single-structure design, mainly consisting of a cushion cover and internal filling materials (such as cotton, down, synthetic fibers, memory foam, etc.). The support principle of these cushions relies on the fluffiness and elasticity of the filling material itself. When a person leans against them, the filling material absorbs pressure through compression and deformation, thus forming basic support.

[0003] However, the support performance of traditional back cushions relies entirely on the physical properties of the filling material. During long-term use, the filling material (such as cotton or synthetic fibers) gradually loses its fluffiness after repeated compression, resulting in a "compacted" phenomenon. This causes the overall shape of the cushion to collapse, failing to maintain its initial support height and curvature. This collapse is particularly pronounced in the core areas that the body leans against for extended periods (such as the lumbar region), and in severe cases, it can even lose its support function. The filling material directly bears all the pressure of the body leaning against it, and during repeated compression and rebound, the fiber structure is prone to irreversible damage, with a rapid decline in fluffiness and elasticity. This results in existing back cushions having significant deficiencies in pressure distribution, anti-collapse properties, durability, and self-adjustment due to their simple structural design and reliance on the properties of the filling material itself. Consequently, they cannot meet users' needs for long-term comfortable support. Therefore, a collapse-resistant back cushion structure is needed to solve the problems existing in current technologies. Utility Model Content

[0004] The purpose of this invention is to provide an anti-collapse cushion structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-collapse cushion structure, comprising a cushion cover, wherein the cushion cover has an internal receiving chamber, the receiving chamber of the cushion cover is filled with filling material, and a support mechanism is provided in the receiving chamber of the cushion cover. The support mechanism includes an inflation component, an elastic component, a lifting plate, and a lifting airbag. The inflation component is disposed in the receiving chamber of the cushion cover, the lifting plate is disposed in the receiving chamber of the cushion cover, the lifting airbag is fixed to one side surface of the lifting plate, and the elastic component is disposed between the inflation component and the lifting plate.

[0006] Preferably, the inflatable assembly includes a fixed back plate, which is fixed to the inner rear wall of the cushion cover. A main ventilation pipe is provided in the inner cavity of the fixed back plate, and a branch ventilation pipe is fixed to the surface of the main ventilation pipe.

[0007] Preferably, the elastic component includes a piston sleeve, a piston rod is slidably connected inside the piston sleeve, and a piston head is fixed at one end of the piston rod that extends into the piston sleeve.

[0008] Preferably, a return spring is provided at the part of the piston rod that extends into the piston sleeve. One end of the return spring is fixed to the inner end wall of the piston sleeve, and the other end of the return spring is fixed to the end face of the piston head.

[0009] Preferably, the piston slide rod is fixed to the back of the lifting plate, a vent hole is provided on one end face of the piston sleeve, and one end of the piston sleeve is fixed to the front end face of the fixed back plate.

[0010] Preferably, the vent is connected to the vent branch pipe, and one end of the vent main pipe is fixed to the vent portion of the support airbag.

[0011] This utility model provides an anti-collapse cushion structure, which has the following advantages compared with the prior art:

[0012] (1) Multi-layer buffering disperses pressure and improves the comfort of leaning: When the user leans, the pressure will be transmitted through the three-layer structure of the filling material (surface dispersion), the lifting airbag (secondary buffer to dissipate the impact), and the elastic component (deep buffering of the remaining pressure); each layer can absorb part of the pressure, avoid the pressure being concentrated in a single part of the back or waist, make the pressure distribution more even, effectively reduce local muscle tension, and improve the comfort of leaning for a long time.

[0013] (2) The lifting airbag and the elastic component together form an "elastic support skeleton": even if the filling material is slightly compacted due to long-term use, the natural rebound characteristics of the lifting airbag and the restoring force of the return spring in the elastic component can still maintain the overall shape of the cushion; this structure greatly delays the collapse problem caused by the compaction of the filling material in traditional cushions and extends the effective service life of the cushion.

[0014] (3) The lifting airbag and elastic components bear most of the long-term pressure when the user leans on it, reducing the direct stress loss of the filling material (cotton, chemical fiber, etc.); reducing the rate at which the fluffiness of the filling material decreases due to repeated compression, so that it can maintain its initial fluffiness for a longer time, indirectly extending the overall service life of the cushion.

[0015] (4) It has an "adaptive force adjustment" function: When the user leans more forcefully (such as leaning back forcefully), the squeezing force pushes the piston head into the piston sleeve, pressurizing air into the lifting airbag, causing it to expand in volume and increase in hardness, thus increasing the support force; when the leaning force decreases (such as leaning forward), the return spring drives the piston head back to its original position, the lifting airbag deflates, and the support force weakens accordingly; this dynamic response characteristic can adapt to different users' body types and postures (such as light support when sitting for a long time, deep leaning when relaxing, etc.), ensuring that it can provide appropriate support strength in various scenarios.

[0016] (5) During the inflation process, the support airbag will fit the user's back / waist curve more closely with the change of the leaning force, forming a "dynamic filling" effect; effectively reducing the gap between the body and the cushion, improving the fit under different body types and postures, and further optimizing the support experience.

[0017] In summary, this anti-collapse cushion structure, through the synergistic design of "multi-layer buffering + elastic support + dynamic adjustment", demonstrates significant advantages in improving comfort, delaying collapse, and extending lifespan, and is suitable for various leaning scenarios such as chairs and sofas. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the cushion cover of this utility model;

[0020] Figure 3 This is a three-dimensional cross-sectional view of the fixed back plate structure of this utility model;

[0021] Figure 4 This is a three-dimensional cross-sectional view of the piston sleeve structure of this utility model.

[0022] In the diagram: 1. Cushion cover; 2. Receiving chamber; 3. Support mechanism; 4. Inflatable assembly; 5. Elastic assembly; 6. Lifting plate; 7. Lifting airbag; 8. Fixed back plate; 9. Main ventilation pipe; 10. Branch ventilation pipe; 11. Piston sleeve; 12. Piston slide rod; 13. Piston head; 14. Return spring; 15. Vent hole. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides an anti-collapse cushion structure, including a cushion cover 1. The cushion cover 1 has an internal receiving chamber 2. The receiving chamber 2 of the cushion cover 1 is filled with filling material. The receiving chamber 2 of the cushion cover 1 is provided with a support mechanism 3. The support mechanism 3 includes an inflation component 4, an elastic component 5, a lifting plate 6, and a lifting airbag 7. The inflation component 4 is disposed in the receiving chamber 2 of the cushion cover 1. The lifting plate 6 is disposed in the receiving chamber 2 of the cushion cover 1. The lifting airbag 7 is fixed on one side surface of the lifting plate 6. The elastic component 5 is disposed between the inflation component 4 and the lifting plate 6.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the inflatable assembly 4 includes a fixed back plate 8, which is fixed to the inner rear wall of the cushion cover 1. A main ventilation pipe 9 is provided in the inner cavity of the fixed back plate 8, and a branch ventilation pipe 10 is fixed to the surface of the main ventilation pipe 9.

[0026] Further as Figure 3 As shown, it is worth noting that the elastic component 5 includes a piston sleeve 11, a piston rod 12 is slidably connected inside the piston sleeve 11, and a piston head 13 is fixed at one end of the piston rod 12 that extends into the piston sleeve 11.

[0027] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that a return spring 14 is fitted at the part of the piston slide rod 12 that extends into the piston sleeve 11. One end of the return spring 14 is fixed to the inner end wall of the piston sleeve 11, and the other end of the return spring 14 is fixed to the end face of the piston head 13.

[0028] Further as Figure 4 As shown, it is worth noting that the piston slide rod 12 is fixed to the back of the lifting plate 6, and a vent hole 15 is provided on one end face of the piston sleeve 11. One end of the piston sleeve 11 is fixed to the front end face of the fixed back plate 8.

[0029] Further as Figure 1 As shown, it is worth noting that the vent 15 is connected to the vent branch pipe 10, and one end of the vent main pipe 9 is fixed to the vent of the lifting airbag 7.

[0030] This solution has the following working process: Before use, the receiving chamber 2 of the cushion cover 1 is filled with filling materials such as cotton and chemical fibers. When the cushion cover 1 is compressed during use, because there is filling material between the support airbag 7 and the inner front wall of the cushion cover 1, the user's back first compresses this part of the filling material. Then, the pressure generated by the user's back leaning against it is transmitted to the support airbag 7. After being buffered by the support airbag 7, it is transmitted to the support plate 6. An elastic component 5 is provided between the support plate 6 and the fixed back plate 8. When the piston slide rod 12 in the elastic component 5 is compressed, it will drive the piston head 13 to move along the piston sleeve 11. When the piston head 13 slides, it will stretch the return spring 14. Through the piston movement of the piston head 13 and the piston sleeve 11 and the stretching of the return spring 14, the pressure of the user's back against the cushion can be further buffered when leaning against it. When a user leans against the cushion, the pressure is transmitted sequentially through the initial cushioning filling material, the secondary cushioning support airbag 7, and the tertiary cushioning elastic component 5. Each layer of the structure absorbs a portion of the pressure, preventing pressure from concentrating in a single area. Specifically, the filling material first conforms to the body's curves to disperse surface pressure, the support airbag 7 further dissipates the impact force through deformation, and the piston movement of the elastic component 5 and the stretching of the return spring 14 deeply cushion the remaining pressure, ultimately resulting in a more even distribution of pressure on the back and waist, reducing local muscle tension. Furthermore, the support airbag 7 and elastic component 5 provide an "elastic support skeleton" during cushion use. Even if the filling material is slightly compacted, the rebound of the support airbag 7 and the return of the elastic component 5 can maintain the overall shape of the cushion, significantly delaying the time it takes for it to collapse. The support airbag 7 and elastic component 5 bear most of the long-term pressure, reducing the rate of wear and tear on the filling material and extending the time it retains its fluffiness.

[0031] When the user leans back more forcefully (e.g., leaning backward), the squeezing force pushes the piston head 13 into the piston sleeve 11, forcing air into the support airbag 7. This causes the support airbag 7 to expand in volume and increase in firmness, thus simultaneously increasing the support force. Conversely, when the user leans back less forcefully (e.g., leaning slightly forward), the return spring 14 drives the piston head 13 back to its original position. The air in the support airbag 7 can then flow back through the air passage (or the airbag itself contracts elastically), and the support force weakens accordingly. This dynamic response of "greater pressure → more air → stronger support" allows the cushion to adjust according to user needs. The support intensity is automatically adjusted according to the user's real-time movements. When the support airbag 7 inflates, it fits more closely to the user's back / waist curve. This "dynamic filling" effect reduces the gap between the body and the cushion under different body types and postures, and can adapt to the support needs of different postures (such as light support when sitting for a long time and deep leaning when relaxing), avoiding the problem of insufficient or excessive support. The way the support airbag 7 automatically expands to support the cushion when the user leans more can also alleviate the situation of the cushion collapsing due to excessive compression of the filling material.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A collapse-resistant cushion structure comprising a cushion cover (1), characterized in that: The cushion cover (1) has an internal receiving chamber (2), and the receiving chamber (2) of the cushion cover (1) is filled with filling material. The receiving chamber (2) of the cushion cover (1) is provided with a support mechanism (3). The support mechanism (3) includes an inflation component (4), an elastic component (5), a support plate (6) and a support airbag (7). The inflation component (4) is disposed in the receiving chamber (2) of the cushion cover (1). The support plate (6) is disposed in the receiving chamber (2) of the cushion cover (1). The support airbag (7) is fixed on one side surface of the support plate (6). The elastic component (5) is disposed between the inflation component (4) and the support plate (6).

2. A collapse resistant cushion structure according to claim 1, wherein: The inflation assembly (4) includes a fixed back plate (8), which is fixed to the inner rear wall of the cushion cover (1). A ventilation main pipe (9) is provided in the inner cavity of the fixed back plate (8), and a ventilation branch pipe (10) is fixed on the surface of the ventilation main pipe (9).

3. The anti-collapse cushion structure according to claim 2, characterized in that: The elastic component (5) includes a piston sleeve (11), and a piston rod (12) is slidably connected inside the piston sleeve (11). A piston head (13) is fixed at one end of the piston rod (12) that extends into the piston sleeve (11).

4. A collapse resistant cushion structure according to claim 3, wherein: A return spring (14) is fitted into the part of the piston slide rod (12) that extends into the piston sleeve (11). One end of the return spring (14) is fixed to the inner end wall of the piston sleeve (11), and the other end of the return spring (14) is fixed to the end face of the piston head (13).

5. A collapse resistant cushion structure according to claim 4, wherein: The piston slide rod (12) is fixed to the back of the lifting plate (6), and a vent hole (15) is provided on one end face of the piston sleeve (11). One end of the piston sleeve (11) is fixed to the front end face of the fixed back plate (8).

6. A collapse resistant cushion structure according to claim 5, wherein: The ventilation hole (15) is connected to the ventilation branch pipe (10), and one end of the ventilation main pipe (9) is fixed to the air hole of the lifting airbag (7).

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