A cushion for facilitating posture adjustment

Abstract

The application relates to a human body supporting device, in particular to a cushion facilitating posture adjustment, which comprises a flexible supporting part, a first air charging part, a second air charging part and an air source. The flexible supporting part comprises a first supporting position and a second supporting position. The first air charging part is arranged on the first supporting position, and the second air charging part is arranged on the second supporting position. The first air charging part comprises a first air bag and a structural member. The structural member is arranged between the first supporting position and the first air bag. The first air charging part and the second air charging part are alternately charged and discharged, the ischial tuberosity area is periodically lifted / lower thigh support, or the reverse operation is performed, the dynamic adjustment of the sitting posture is realized, the design actively changes the hip pressure distribution, the continuous pressure on the ischial tuberosity or the thigh root is avoided, the risk of soft tissue injury is significantly reduced, and blood circulation is improved.

Description

Technical Field

[0001] This application relates to a human body support device, specifically to a seat cushion that can be adjusted to provide dynamic posture support through inflation. Background Technology

[0002] Traditional seat cushions mostly have a fixed filling structure, which cannot dynamically adjust the distribution of support according to the user's sitting posture. Prolonged sitting can easily lead to problems such as concentrated pressure on the buttocks and uneven stress on the lumbar spine. Although existing inflatable seat cushions can be height adjusted, they lack independent support structures for different areas of the buttocks, making it difficult to achieve scientific pressure alternation and release.

[0003] Patent CN201920570374.5 discloses an airbag seat cushion designed to change the habit of prolonged sitting. It includes a sponge core pad, a PVC sealing cloth, and a honeycomb mesh breathable sandwich fabric arranged from the inside out. The PVC sealing cloth is airtightly covering the sponge core pad, and its sides have air inlets and outlets. Each air inlet and outlet has a one-way valve. The sponge core pad has several holes, and a base is fixedly mounted on the sponge core pad at each hole. A conical protrusion is provided on the base within each hole. The drawback of this design is that using the conical protrusion for guidance can be jarring for users. While it may slightly improve posture, it is not ergonomic.

[0004] In summary, the existing technology has the following problems that urgently need to be solved: First, the existing seat cushions cause continuous pressure on local areas of the buttocks (such as the ischial tuberosities), which can easily lead to poor blood circulation, soft tissue damage or fatigue; Second, the existing inflatable seat cushions, although the overall height can be adjusted, cannot provide differentiated support for different anatomical areas of the buttocks (such as the left and right ischial tuberosities and the root of the thigh); Third, relying on "conical protrusions" to forcibly change sitting posture can easily cause discomfort. Utility Model Content

[0005] This application is made in view of the above and other ideas.

[0006] One of the purposes of this application is to provide a seat cushion with dynamically adjustable support areas, which can achieve fine-tuning of sitting posture and improve blood circulation by alternating inflation and deflation.

[0007] The objective of this utility model is achieved through the following solution:

[0008] A seat cushion that is easy to adjust posture includes a flexible support part, a first inflatable part, a second inflatable part, and an air source. The flexible support part includes a first support and a second support. The first inflatable part is disposed on the first support, and the second inflatable part is disposed on the second support. Furthermore, the first inflatable part includes a first airbag and a structural member, and the structural member is disposed between the first support and the first airbag.

[0009] The objective of this application can also be further achieved through the following technical solutions:

[0010] In one embodiment, the flexible support includes two first supports and two second supports, and a hollow area is provided between adjacent first supports, the hollow area being located on the center line of the flexible support.

[0011] In one embodiment, the flexible support is made of memory foam or an elastic polymer.

[0012] In one embodiment, the first support is used to support the ischial tuberosity region, and the second support is used to support the posterior thigh near the buttock region.

[0013] In one embodiment, the flexible support portion is provided with two first support positions (left and right ischial regions) and two second support positions (left and right thigh support regions).

[0014] In one embodiment, a hollow area (such as a long strip-shaped through hole) is provided between the two first supports, extending longitudinally along the center line of the seat cushion to reduce perineal pressure.

[0015] In one embodiment, there is no memory foam above the hollowed-out area.

[0016] In one embodiment, the first inflation part includes two first airbags and two structural members, and the first airbags are double-layered airbags.

[0017] In one embodiment, the second inflation part includes two second airbags, which are inflated or deflated individually or simultaneously.

[0018] In one embodiment, the second airbag is a double-layered airbag.

[0019] In another embodiment, the second airbag is a single-layer airbag.

[0020] In one embodiment, a protrusion is provided between adjacent second supports, the protrusion being higher than the second supports.

[0021] In one embodiment, a protrusion (such as an arc-shaped raised strip) is provided between the two second supports, the height of which is higher than the surface of the second support, to guide the thigh positioning and disperse the femoral pressure.

[0022] In one embodiment, the outer periphery of the structural member approximates the shape of the first airbag; the structural member includes a strip-shaped region that is hollowed out to facilitate the passage of an air tube.

[0023] In one embodiment, the strip-shaped perforated area has an air supply pipe running through it to connect the airbag to the air source.

[0024] In one embodiment, the structural member is a rigid plastic sheet or a reinforcing fiber layer, used to enhance support stability.

[0025] In one embodiment, the structural member is a baffle.

[0026] In one embodiment, the air source is a miniature air pump.

[0027] In one embodiment, the first inflation part and the second inflation part are respectively connected to the air source via air tubes; and the two air tubes connected to the two first airbags converge at one point and are then connected to the air source.

[0028] In one embodiment, the area below the hollowed-out region is higher than the lowest point of the first airbag.

[0029] In one embodiment, the first inflation part and the second inflation part are inflated and deflated sequentially. When the first inflation part is inflated, the second inflation part is deflated, and when the first inflation part is deflated, the second inflation part is inflated.

[0030] In one embodiment, the air source is fixed to the side of the flexible support; and it also includes an outer cover that completely covers the flexible support, the first inflation part, and the second inflation part.

[0031] In one embodiment, when the first inflation part is inflated, the second inflation part deflates, raising the ischial region and lowering the thigh support; when the first inflation part deflates, the second inflation part inflates, lowering the ischial region and raising the thigh support, thereby achieving periodic positional changes and relieving local pressure.

[0032] In one embodiment, the flexible support is made of a medical-grade elastic polymer (hardness 40 Asker C) with an ergonomic profile. The first support is a deepened bowl-shaped structure (12cm in diameter) with an inner wall that conforms to the shape of the ischium. The hollow area is widened to 5cm and tapered at the bottom to ensure a distance of at least 2cm from the upper surface of the first airbag (to avoid inflation interference). The protrusion is upgraded to a deformable silicone column array with height adaptive to thigh pressure.

[0033] In one embodiment, the outer casing is detachable.

[0034] In one implementation, the left and right first airbags can be inflated differently (e.g., the left airbag is inflated to 10 kPa and the right airbag to 7 kPa) to correct pelvic tilt; the left and right second airbags can be inflated and deflated separately to accommodate patients with leg mobility impairments; air source: intelligent air pump with integrated pressure sensor, which automatically adjusts the cycle according to the sitting posture (adjustable from 5 to 15 minutes).

[0035] In one implementation, the left and right airbags in the ischial region are inflated alternately (the right airbag is deflated while the left airbag is inflated) to promote blood circulation; the thigh airbags maintain a baseline pressure (4 kPa) to stabilize the lower limbs.

[0036] In one implementation, all airbags are partially inflated (5 kPa) to provide static support to the sacrococcygeal region and prevent pressure sores.

[0037] Compared with the prior art, the advantages of the technical solution of this application include at least the following:

[0038] 1. Unlike existing technologies, this application achieves dynamic pressure regulation to relieve local fatigue. Specifically, by alternately inflating and deflating the first and second inflation parts, the ischial tuberosity is periodically raised / the thigh support is lowered, or vice versa, to achieve micro-dynamic adjustment of sitting posture. This design actively changes the pressure distribution of the buttocks, avoids continuous pressure on the ischial tuberosity or the root of the thigh, significantly reduces the risk of soft tissue injury, and improves blood circulation.

[0039] 2. Unlike existing technologies, this application provides independent zone support to adapt to individual needs. It features two independent first airbags (ischial area) and two independent second airbags (thigh area), supporting independent inflation and deflation on one or both sides. This allows for flexible adaptation to asymmetrical sitting postures (such as crossing legs or tilting to the side), achieving precise zone support and improving comfort.

[0040] 3. Unlike existing technologies, this application has optimized the ergonomic structure to reduce physiological pressure. The first support has a central hollow area, and the bottom of the hollow area is higher than the lowest point of the first airbag to ensure zero pressure on the perineum. The second support has a high protrusion to guide the thigh to abduct naturally and disperse the pressure on the femur, which can avoid nerve and blood vessel compression. It is especially suitable for long-term driving and office scenarios.

[0041] 4. Unlike existing technologies, this application enhances structural stability and durability by adding a structural component between the first airbag and the flexible support, the outline of which matches the shape of the airbag and provides rigid support; the first airbag adopts a double-layer design to improve compressive strength and deformation controllability, prevent airbag displacement and collapse, extend service life, and make the load-bearing capacity more stable.

[0042] 5. Unlike existing technologies, the two first airbag tubes of this application converge into a single pipeline to connect to the air source, simplifying the layout; on the other hand, the structural components have reserved strip-shaped hollow channels, which facilitates the concealed passage of the air tubes, avoids bending and blockage, reduces the failure rate, and makes maintenance convenient.

[0043] 6. Unlike existing technologies, this design optimizes sitting posture through seamless dynamic adjustment, avoiding abrupt discomfort; it solves the core pain points of traditional seat cushions that cannot be adjusted independently in sections and inflatable seat cushions that lack scientific pressure alternation.

[0044] The embodiments of this application can achieve other advantageous technical effects not listed one by one, which may be partially described below; and these other technical effects can be expected and understood by those skilled in the art after reading this application. Attached Figure Description

[0045] The above-described features and advantages of these embodiments, as well as other features and advantages, and the ways in which they are implemented, will become more apparent from the following description in conjunction with the accompanying drawings; and embodiments of this application can be better understood, in which:

[0046] Figure 1 This is a schematic diagram of the overall internal structure of the seat cushion of this utility model.

[0047] Figure 2 This is a schematic diagram of the structural components of this utility model and a schematic diagram of the strip area facilitating the passage of the airway.

[0048] The features represented by the numbers in the attached diagram are as follows:

[0049] 1- Flexible support part, 11- First support position, 12- Second support position, 13- Hollowed-out area, 14- Protrusion, 2- First inflation part, 21- First airbag, 22- Structural component, 221- Strip area, 3- Second inflation part, 31- Second airbag, 4- Air source, 5- Air tube. Detailed Implementation

[0050] The details of one or more embodiments of this application will be set forth in the following description of the accompanying drawings and specific embodiments. Other features, objects, and advantages of this application will become clear from these descriptions, drawings, and claims.

[0051] It should be understood that the phrases and terms used in this document are for descriptive purposes and should not be considered restrictive. The use of “including,” “contains,” or “has,” and their variations, in this document is intended to include, in an open-ended manner, the items listed thereafter, their equivalents, and any additional items.

[0052] The present application will now be described in more detail with reference to various embodiments and examples of several aspects thereof. Example

[0053] The present invention relates to a seat cushion for use in office chairs. The illustration shows an embodiment of a seat cushion for easy posture adjustment, comprising a flexible support part 1, a first inflatable part 2, a second inflatable part 3, and an air source 4. The flexible support part 1 includes a first support 11 and a second support 12. The first inflatable part 2 is disposed on the first support 11, and the second inflatable part 3 is disposed on the second support 12. Furthermore, the first inflatable part 2 includes a first airbag 21 and a structural member 22, the structural member 22 being disposed between the first support 11 and the first airbag 21. Figure 1 As shown.

[0054] The objective of this application can also be further achieved through the following technical solutions:

[0055] In this first embodiment, the flexible support part 1 includes two first support positions 11 and two second support positions 12, and a hollow area 13 is provided between adjacent first support positions 11, the hollow area 13 being located on the center line of the flexible support part 1.

[0056] In this first embodiment, the flexible support part 1 is made of memory foam or elastic polymer.

[0057] In this embodiment, the first support 11 is used to support the ischial tuberosity region, and the second support 12 is used to support the posterior thigh near the buttock region.

[0058] In this first embodiment, the flexible support part 1 is provided with two first support positions 11 (left and right ischial regions) and two second support positions 12 (left and right thigh support regions).

[0059] In this first embodiment, the bottom of the first support 11 is circular.

[0060] In this first embodiment, a hollow area 13 is provided between the two first support positions 11. There is no memory foam above the hollow area 13, which extends longitudinally along the center line of the seat cushion to reduce perineal pressure.

[0061] In this first embodiment, the first inflation part 2 includes two first airbags 21 and two structural members 22, and the first airbag 21 is a double-layer airbag.

[0062] In this first embodiment, the first airbag 21 is a double-layer TPU airbag.

[0063] In this first embodiment, the four corners of the first airbag 21 are rounded.

[0064] In this first embodiment, the four corners of the second airbag 31 are rounded.

[0065] In this first embodiment, the second inflation part 3 includes two second airbags 31, which can be inflated or deflated individually or simultaneously.

[0066] In this first embodiment, a protrusion 14 is provided between adjacent second support positions 12, and the protrusion 14 is higher than the second support position 12.

[0067] In this first embodiment, the outer periphery of the structural component 22 approximates the shape of the first airbag 21; the structural component 22 includes a strip-shaped region 221, which is hollowed out to facilitate the passage of the air tube 5, such as... Figure 2 As shown.

[0068] In this first embodiment, the strip-shaped hollow area air supply pipe 5 passes through to connect the airbag and the air source 4.

[0069] In this first embodiment, the structural component 22 is a rigid plastic plate or a reinforcing fiber layer, used to enhance the support stability.

[0070] In this first embodiment, the structural component 22 is a baffle.

[0071] In this first embodiment, the air source 4 is a miniature air pump.

[0072] In this first embodiment, the first inflation part 2 and the second inflation part 3 are respectively connected to the air source 4 through air pipes 5; and the two air pipes 5 connected to the two first airbags 21 converge at one point and are then connected to the air source 4.

[0073] In this first embodiment, the area below the hollowed-out region 13 is higher than the bottom of the first airbag 21.

[0074] In this first embodiment, the first inflation part 2 and the second inflation part 3 are inflated and deflated sequentially. When the first inflation part 2 is inflated, the second inflation part 3 is deflated, and when the first inflation part 2 is deflated, the second inflation part 3 is inflated.

[0075] In this first embodiment, the air source 4 is fixed to the side of the flexible support part; and it also includes an outer cover, which completely covers the flexible support part 1, the first inflation part 2 and the second inflation part 3.

[0076] In this first embodiment, when the first inflation part 2 is inflated, the second inflation part 3 is deflated, raising the ischial region and lowering the thigh support; when the first inflation part 2 is deflated, the second inflation part 3 is inflated, lowering the ischial region and raising the thigh support, thereby achieving periodic body position changes and relieving local pressure.

[0077] In this embodiment, the dynamic adjustment process of the seat cushion is as follows: Stage 1 (lasts 3 minutes): The air pump inflates the two first airbags 21 (pressure rises to 8 kPa), raising the ischial tuberosity area by 3 cm; simultaneously, the two second airbags 31 deflate to flatten, reducing thigh support; Stage 2 (lasts 3 minutes): The first airbag 21 deflates to 2 kPa, lowering the ischial tuberosity area; the two second airbags 31 inflate simultaneously (pressure 6 kPa), raising the thigh support area by 2 cm. This cyclical switching forces the center of pressure on the buttocks to alternate between the ischial tuberosities and thighs, relieving continuous pressure on the ischial tuberosities.

[0078] The foregoing description of several embodiments of this application has been provided for illustrative purposes. This foregoing description is not intended to be exhaustive, nor is it intended to limit the application to the precise configurations, constructions, and / or steps disclosed; obviously, many modifications and variations can be made in light of the teachings above. The scope of this invention and all its equivalents are intended to be defined by the appended claims.

Claims

1. A seat cushion that is easy to adjust in posture, characterized in that, It includes a flexible support part, a first inflatable part, a second inflatable part, and an air source. The flexible support part includes a first support position and a second support position. The first inflatable part is disposed on the first support position, and the second inflatable part is disposed on the second support position. Furthermore, the first inflatable part includes a first airbag and a structural component, and the structural component is disposed between the first support position and the first airbag.

2. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The flexible support includes two first supports and two second supports, and a hollow area is provided between adjacent first supports, the hollow area being located on the center line of the flexible support.

3. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The first inflation part includes two first airbags and two structural members, and the first airbag is a double-layered airbag.

4. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The second inflation part includes two second air bladders, which can be inflated or deflated individually or simultaneously.

5. The seat cushion for easy posture adjustment according to claim 1, characterized in that, A protrusion is provided between adjacent second supports, the protrusion being higher than the second supports.

6. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The outer periphery of the structural component approximates the shape of the first airbag; the structural component includes a strip-shaped area, which is hollowed out to facilitate the passage of the air tube.

7. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The first inflation part and the second inflation part are respectively connected to the air source through air tubes; and the two air tubes connected to the two first airbags converge at one point and are then connected to the air source.

8. The seat cushion for easy posture adjustment according to claim 2, characterized in that, The area below the hollowed-out region is higher than the bottom of the first airbag.

9. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The first inflation part and the second inflation part are inflated and deflated in sequence. When the first inflation part is inflated, the second inflation part is deflated, and when the first inflation part is deflated, the second inflation part is inflated.

10. The seat cushion for easy posture adjustment according to claim 1, characterized in that, The air source is fixed to the side of the flexible support; and it also includes an outer cover that completely covers the flexible support, the first inflation part, and the second inflation part.

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