Flexible waist protection cushion with pressure dispersion structure

Abstract

The utility model relates to a flexible waist support seat cushion with a pressure dispersion structure, which comprises a seat cushion body, the seat cushion body is divided into a seat cushion part, a waist support part and a backrest part, a first soft cushion is arranged at the top of the seat cushion part, a first cavity, a second cavity and a third cavity are sequentially arranged on the first soft cushion, an inflation inlet is arranged on the right side of the third cavity, a sealing piece is arranged in the inflation inlet, and the sealing piece is arranged in the inflation inlet. Pressure sensors are symmetrically arranged on the front side of the cushion part, and a second soft cushion is installed on the front side of the backrest part. The cushion part is provided with the first cavity and the second cavity which are filled with the cloth cotton and the third cavity filled with the gas, so that the pressure of different parts is effectively dispersed, when a user sits on the cushion, the third cavity can buffer thighs and disperse the pressure under the elastic action of the gas, local pressure concentration is reduced, and the comfort of the user is improved. Discomfort caused by long-time sitting posture is reduced, and the problems of unsmooth blood circulation, nerve compression and the like caused by overlarge pressure are effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of seat cushion technology, specifically relating to a flexible lumbar support seat cushion with a pressure dispersion structure. Background Technology

[0002] With the fast pace of life and increasing work pressure, maintaining a seated posture for long periods of time while working or studying has become the norm. However, prolonged poor posture can easily lead to fatigue and damage in the lower back and other areas, resulting in various health problems such as lumbar disc herniation and cervical spondylosis. To alleviate these problems, various lumbar support cushion products have appeared on the market, with fillings mostly made of materials such as sponge and gel. Although these materials can provide support and cushioning to a certain extent, they are prone to deformation and collapse after prolonged use, affecting their support effect and lifespan. For users with different body types and sitting habits, their pressure distribution effect gradually becomes less than ideal. Utility Model Content

[0003] The purpose of this invention is to provide a flexible lumbar support cushion with a pressure dispersion structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flexible lumbar support cushion with a pressure dispersion structure, comprising a cushion body, the cushion body being divided into a seat cushion portion, a lumbar support portion, and a backrest portion, a first soft pad being installed on the top of the seat cushion portion, the first soft pad being provided with a first cavity, a second cavity, and a third cavity in sequence, an air inlet being provided on the right side of the third cavity, a sealing element being provided inside the air inlet, pressure sensors being symmetrically arranged on the front side of the seat cushion portion, and a second soft pad being installed on the front side of the backrest portion.

[0005] Preferably, the first and second cavities are filled with cotton fabric, and the third cavity is filled with gas.

[0006] Preferably, the sealing element includes: a valve cylinder installed on the air inlet through a first sealing ring, a fixing plate provided on the right side inside the valve cylinder, a conical block slidably installed on the left side of the fixing plate through a fixing rod, and a first spring connecting the conical block and the fixing plate.

[0007] Preferably, a conical groove is provided on the left side of the valve cylinder, the conical block is located in the conical groove, and a second sealing ring is provided on the conical block at a position inside the conical groove.

[0008] Preferably, the fixing plate has multiple ventilation slots on its side.

[0009] Preferably, a second spring is connected inside the first pad at a position above the pressure sensor.

[0010] Preferably, it further includes a first pressure regulating component or a second pressure regulating component that cooperates with the sealing component. The first pressure regulating component includes a screw cap that is threaded onto the outer right side wall of the valve cylinder.

[0011] Preferably, the waist support has symmetrically arranged heat dissipation holes, and the waist support has symmetrically arranged reinforcing ribs on the rear side;

[0012] Preferably, a carrying hole is provided between the backrest and the second cushion.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention effectively disperses pressure in different areas by setting a first and second cavity filled with cotton fabric and a third cavity filled with gas in the seat cushion. When the user sits down, the third cavity can cushion and disperse pressure on the thigh under the elastic action of the gas, reduce local pressure concentration, reduce discomfort caused by prolonged sitting, and effectively prevent problems such as poor blood circulation and nerve compression caused by excessive pressure.

[0015] The seat cushion of this invention is symmetrically equipped with pressure sensors on the front side, which can detect the pressure data brought by the user and transmit it to the mobile terminal for calculation. The user can adjust the amount of gas filling in the airbag according to their own situation through the first pressure regulating component and the second pressure regulating component, so as to realize the pressure adjustment required by different user groups, meet personalized needs, and make the seat cushion better adapt to users with different body shapes and sitting habits, providing a more comfortable user experience.

[0016] The lumbar support in this invention is symmetrically reinforced with reinforcing ribs on the rear side, which can effectively prevent the cushion from deforming or being damaged due to long-term load-bearing, and enhance the structural stability and durability of the cushion.

[0017] The sealing element design in this invention ensures the airtightness of the gas inside the airbag, prevents gas leakage, ensures the pressure dispersion effect during long-term use of the seat cushion, and extends the product's service life. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is an enlarged view of point a;

[0021] Figure 4 This is an exploded view of part of the structure of this utility model;

[0022] Figure 5This is a three-dimensional structural diagram of the second pressure regulating component in this utility model.

[0023] The diagram is labeled as follows: 1-Seat body, 101-Seat part, 102-Lumbar support part, 103-Backrest part, 2-First soft pad, 201-First cavity, 202-Second cavity, 203-Third cavity, 3-Inflation port, 4-Sealing element, 401-First sealing ring, 402-Valve cylinder, 403-Fixing plate, 404-Fixing rod, 405-Conical block, 406-First spring, 5-Pressure sensor, 6-Second soft pad, 7-Conical groove, 8-Second sealing ring, 9-Ventilation groove, 11-First pressure regulating element, 111-Thread, 112-Screw cap, 12-Second pressure regulating element, 13-Heat dissipation hole, 14-Reinforcing rib, 15-Carrying hole. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figures 1 to 5The flexible lumbar support cushion with a pressure dispersion structure shown includes a cushion body 1, which is divided into a cushion portion 101, a lumbar support portion 102, and a backrest portion 103. A first soft pad 2 is installed on the top of the cushion portion 101. A first cavity 201, a second cavity 202, and a third cavity 203 are sequentially provided on the first soft pad 2. An air inlet 3 is provided on the right side of the third cavity 203, and a sealing element 4 is provided inside the air inlet 3. Pressure sensors 5 are symmetrically arranged on the front side of the cushion portion 101, and a second soft pad 6 is installed on the front side of the backrest portion 103. The first cavity 201 and the second cavity 202 are filled with cotton fabric, and the third cavity 203 is filled with gas. The sealing element 4 includes: a valve cylinder 402 installed on the air inlet 3 through a first sealing ring 401; a fixing plate 403 is provided on the right side of the valve cylinder 402; and a fixing rod 40 is provided on the left side of the fixing plate 403. A conical block 405 is slidably installed, and a first spring 406 is connected between the conical block 405 and the fixed plate 403; a conical groove 7 is opened on the left side of the valve cylinder 402, the conical block 405 is located in the conical groove 7, and a second sealing ring 8 is provided on the conical block 405 at the position in the conical groove 7; multiple ventilation grooves 9 are opened on the side of the fixed plate 403; a second spring is connected in the first soft pad 2 at the position above the pressure sensor 5; it also includes a first pressure regulating component 11 or a second pressure regulating component 12 that cooperates with the valve cylinder 402. The first pressure regulating component 11 includes: a cap 112 installed on the outer right side of the valve cylinder 402 through a thread 111; heat dissipation holes 13 are symmetrically opened on the waist support 102, and reinforcing ribs 14 are symmetrically provided on the rear side of the waist support 102; a carrying hole 15 is opened between the backrest 103 and the second soft pad 6.

[0027] This invention effectively disperses pressure in different areas by providing a first cavity 201 and a second cavity 202 filled with cotton fabric, and a third cavity 203 filled with gas in the seat cushion 101. When the user sits down, the third cavity 203 cushions and disperses pressure on the thighs under the elastic action of the gas, reducing local pressure concentration and alleviating discomfort caused by prolonged sitting. It also effectively prevents problems such as poor blood circulation and nerve compression caused by excessive pressure. The seat cushion 101 in this invention is symmetrically equipped with pressure sensors 5 on the front side, which can detect the pressure data brought by the user and transmit it to a mobile terminal for calculation. The user can then adjust the pressure according to their own situation. The first pressure regulating component 11 and the second pressure regulating component 12 adjust the amount of gas filling in the airbag, realizing the pressure adjustment required by different user groups, meeting personalized needs, and enabling the seat cushion to better adapt to users with different body types and sitting habits, providing a more comfortable user experience; the lumbar support part 102 in this utility model is symmetrically provided with reinforcing ribs 14 on the rear side, which can effectively prevent the seat cushion from deforming or being damaged due to long-term weight-bearing, and enhance the structural stability and durability of the seat cushion; the design of the sealing component 4 in this utility model ensures the airtightness of the gas in the airbag, avoids gas leakage, ensures the pressure dispersion effect during long-term use of the seat cushion, and extends the service life of the product.

[0028] Example 2

[0029] like Figures 1 to 5 The flexible lumbar support cushion with a pressure-dispersing structure shown includes a cushion body 1, which, from bottom to top, comprises a seat cushion portion 101, a lumbar support portion 102, and a backrest portion 103. These three components are integrally injection molded to provide support for the human body. The seat cushion portion 101 supports the thighs and part of the buttocks, the lumbar support portion 102 supports the buttocks and part of the lumbar spine, and the backrest portion 103 supports the back. In addition, multiple reinforcing ribs 14 are vertically and symmetrically arranged on the rear side of the lumbar support portion 102. Considering that the lumbar support portion 102 is the main support point when the body is seated, adding reinforcing ribs 14 on its rear side can effectively prevent the cushion from deforming or being damaged due to prolonged weight-bearing. It also helps the lumbar support portion 102 better conform to the curve of the human waist, reducing pressure and discomfort in the lower back when seated, thus helping to improve posture and reduce the burden on the lumbar spine.

[0030] The side of the seat cushion body 1 is rounded and curved in an L shape. When sitting down, the user's thighs, buttocks and waist can fit closely with the seat cushion body 1. At the same time, the backrest 102 is recessed to fix the buttocks and legs and to contract the pelvis to keep the ischial bones upright. In addition, the left and right sides of the seat cushion 101 are raised and have an arc shape to wrap the buttocks and thighs. The seat cushion 101 extends inward and bulges upward to separate the two thighs and prevent the user from developing bad sitting postures such as crossing their legs.

[0031] The shape of the seat cushion body 1 is designed to fit closely to the user, relieving the pressure of prolonged sitting and gradually cultivating good posture. In addition, a first soft cushion 2 and a second soft cushion 6 are provided. The first soft cushion 2 is installed on the top of the seat cushion part 101, and the second soft cushion 6 is installed on the front side of the backrest part 103. When the user sits down, the first soft cushion 2 and the second soft cushion 6 will come into contact with the thighs and back, and will take shape when pressure is applied, thus better conforming to the user's body contours.

[0032] The first soft pad 2 and the second soft pad 6 can be filled with various materials, including but not limited to sponges wrapped in elastic mesh, airbags, gels, cotton fabrics and other soft and elastic materials.

[0033] Example 3

[0034] like Figures 1 to 5The flexible lumbar support cushion with a pressure dispersion structure shown includes a cushion body 1. The cushion body 1 specifically includes a seat cushion portion 101, a lumbar support portion 102, and a backrest portion 103 from bottom to top. It is also provided with a first soft pad 2 and a second soft pad 6. The first soft pad 2 is installed on the top of the seat cushion portion 101, and the second soft pad 6 is installed on the front side of the backrest portion 103. That is, after the user sits down, the first soft pad 2 and the second soft pad 6 will come into contact with the thighs and back, and will take shape when pressure is received, so as to better conform to the user's body contour.

[0035] The first soft cushion 2 has a first cavity 201 located closest to the lumbar support 102. The first cavity 201 extends forward in sequence to install the second cavity 202 and the third cavity 203. The three cavities gradually enclose each other, and two channels are formed between the three cavities, which can be used for heat transfer when the human body sits down, keeping the body cool after sitting for a long time. The same design is also presented on the second soft cushion 6, which will not be elaborated on here.

[0036] In this embodiment, to effectively distribute pressure for most users, the first cavity 201 and the second cavity 202 are filled with cotton fabric, while the third cavity 203 is an air-filled bladder. An inflation port 3 is located on the right side of the third cavity 203, allowing adjustment of the amount of gas filling the third cavity 203. It is known that when a person sits down, the thighs contain numerous blood vessels and nerves. Prolonged contact with the seat can cause pressure buildup in the thighs, which may affect blood circulation and nerve conduction, leading to discomfort.

[0037] Continuing from above, the third chamber 203 is a gas-filled airbag, and an inflation port 3 is provided on the right side of the third chamber 203. The airbag is filled through the inflation port 3 at the factory. A sealing element 4 is provided inside the inflation port 3, which seals the inflation port 3, i.e., the gas-filled airbag, ensuring that the gas in the airbag does not leak and guaranteeing the inflation volume. Specifically, the sealing element 4 includes:

[0038] The inflation port 3 is fitted with a valve cylinder 402 via a first sealing ring 401. It is understood that after the valve cylinder 402 is installed via injection molding, glue, or other methods, the inflation port 3 further seals the valve cylinder 402 by adding a first sealing ring 401 to prevent gas leakage through the valve cylinder 402. A fixing plate 403 is located on the inner right side of the valve cylinder 402. Specifically, the fixing plate 403 is a plate-shaped structure with three ventilation slots 9 on its outer side. The fixing plate 403 is fixedly installed on the inner right side of the valve cylinder 402. Simultaneously, a conical block 405 is slidably mounted on the left side of the fixing plate 403 via a fixing rod 404. That is, the conical block 405 can slide on the left side of the fixing plate 403 and interact with the fixing plate 403. The spring connecting the valve cylinder 402 is reset. It should be noted that the valve cylinder 402 is divided into two areas. The right side of the inner wall of the valve cylinder 402 is cylindrical, while the left side is conical, forming a conical groove 7. The conical groove 7 is connected to the right side of the inner wall of the valve cylinder 402, and the conical block 405 is located in the conical groove 7. That is, the conical block 405 can move left and right in the conical groove 7 under the action of the spring. Specifically, when the conical block 405 moves to the left, it no longer blocks the connecting hole between the conical groove 7 and the valve cylinder 402, and the entire valve cylinder 402 is in an open state. At this time, the spring is compressed. When the conical block 405 moves to the right under the reset force of the spring, it blocks the connecting hole again, and the valve cylinder 402 is in a closed state.

[0039] Therefore, after the installation of the seal 4, the gas filled into the airbag will no longer leak out. This means that after the airbag is compressed, the gas will gather at the inflation port 3 and exert force outward, pushing the cone block 405 to the right within the valve cylinder 402, further strengthening the closure of the valve cylinder 402 and preventing gas leakage. Considering that there will still be gaps after the hard materials come into contact with each other, a second sealing ring 8 is also provided on the cone block 405 at the position within the cone groove 7. The second sealing ring 8 strengthens the sealing of the connecting hole, preventing the airbag from leaking when the human body applies pressure to the airbag while using the seat cushion body 1, thus losing the effect of dispersing pressure.

[0040] Example 4

[0041] like Figures 1 to 5 The flexible lumbar support cushion with a pressure dispersion structure shown also includes a first pressure regulating component 11 or a second pressure regulating component 12 that cooperates with the valve cylinder 402. The first pressure regulating component 11 is used for secondary sealing of the valve cylinder 402, while the second pressure regulating component 12 is used for opening and regulating the pressure of the valve cylinder 402. Simply put, the user can open the valve cylinder 402 through the second pressure regulating component 12 to adjust the amount of gas filling in the airbag, thereby achieving pressure adjustment required by different user groups.

[0042] Pressure sensors 5 are symmetrically arranged on the front side of the seat cushion 101. The pressure sensors 5 are all located below the first soft cushion 2, specifically in the recess on the front side of the seat cushion 101, that is, where the user's two thighs are placed after sitting down. At the same time, a second spring (not shown in the figure) is connected in the third cavity 203 above the pressure sensors 5. After the user sits down, the thighs will directly squeeze the third cavity 203, and the pressure will be transmitted to the pressure sensors 5 through the second spring. The pressure sensors 5 detect the pressure data brought by the user and transmit it to the mobile terminal for calculation.

[0043] Understandably, users with different weights and body fat percentages require different levels of pressure relief for their thighs. However, the inflation volume of the seat cushion 1 is fixed at the factory. For different users' needs, over-inflation of the airbag will increase the firmness of the seat cushion, resulting in greater discomfort. On the other hand, if the air pressure in the airbag is too low, the support of the seat cushion 101 will be insufficient and will not be able to effectively support the user's thighs. Furthermore, an overly soft airbag will cause uneven distribution of force in the user's thigh muscles, which will increase local pressure. Therefore, users need to perform a test and adaptation when they sit down for the first time, calculate the pressure state required by the user, and then adjust the airbag to an appropriate inflation volume.

[0044] In most states, the first pressure regulating component 11 is installed on the right side of the valve cylinder 402 to achieve secondary sealing of the valve cylinder 402 and prevent gas leakage. Specifically, a cap 112 is installed on the outer right side wall of the valve cylinder 402 via a thread 111. That is, the outer right side of the valve cylinder 402 has a thread 111, and under normal conditions, the valve cylinder 402 can be sealed secondary by rotating the cap 112. When pressure regulation is required, the first pressure regulating component 11 needs to be removed and the second pressure regulating component 12 needs to be installed. The second pressure regulating component 12 has the same shape as the cap 112, but its inner wall is equipped with a third rubber ring. The third rubber ring is inclined, meaning that the second pressure regulating component 12 is fixed to each other only by the engagement of the rubber ring and the thread 111. Furthermore, a pushing block is provided on the left side of the inner wall of the second pressure regulating component 12. The pushing block cooperates with the three ventilation slots 9 of the fixing plate 403. When the second pressure regulating component 12 is installed on the valve... When the valve cylinder 402 is on the right side, the cone block 405 is pushed to the left through the ventilation slot 9, opening the valve cylinder 402. At this time, the first spring 406 is compressed. The second pressure regulating component 12 is also connected to an air regulating pipe through a through hole on its right side. The other side of the air regulating pipe is connected to the fan. That is, after the second pressure regulating component 12 is installed, it will open the valve cylinder 402. At this time, the air bag is opened. The user selects the operating mode of the fan according to the pressure regulation needs. Blowing air is achieved by inflating the air bag through the air regulating pipe, and inhaling air is achieved by deflating the air bag through the air regulating pipe. In this way, the adjustment of the third chamber 203 is completed, so as to achieve pressure distribution and adaptation for different users when they sit down.

[0045] After adjustment, pull out the second pressure regulating component 12. The conical block 405 will no longer be squeezed and will move to the right under the restoring force of the first spring 406 to close the valve cylinder 402. Then tighten the first pressure regulating component 11 to complete the secondary sealing of the valve cylinder 402.

[0046] Example 5

[0047] like Figures 1 to 5 The flexible lumbar support cushion shown has a pressure-dispersing structure. The backrest 103 and the second cushion 6 are connected by a carrying hole 15, which allows the user to easily lift or move the entire cushion body 1 by passing their fingers or hands through the carrying hole 15, whether moving it from home to the office or carrying it during outdoor activities.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A flexible lumbar support cushion with a pressure dispersion structure, comprising a cushion body, said cushion body being divided into a seat cushion portion, a lumbar support portion, and a backrest portion, characterized in that, The top of the seat cushion is equipped with a first soft pad, and the first soft pad is provided with a first cavity, a second cavity and a third cavity in sequence. An air inlet is provided on the right side of the third cavity, and a sealing element is provided inside the air inlet. Pressure sensors are symmetrically arranged on the front side of the seat cushion, and a second soft pad is installed on the front side of the backrest.

2. The flexible lumbar support cushion with a pressure dispersion structure according to claim 1, characterized in that, The first and second cavities are filled with cotton cloth, and the third cavity is filled with gas.

3. A flexible lumbar support cushion with a pressure dispersion structure according to claim 1, characterized in that, The sealing element includes: a valve cylinder installed on the air inlet through a first sealing ring; a fixing plate provided on the right side inside the valve cylinder; a conical block slidably installed on the left side of the fixing plate through a fixing rod; and a first spring connecting the conical block and the fixing plate.

4. A flexible lumbar support cushion with a pressure dispersion structure according to claim 3, characterized in that, A conical groove is provided on the left side of the valve cylinder, the conical block is located in the conical groove, and a second sealing ring is provided on the conical block at the position inside the conical groove.

5. A flexible lumbar support cushion with a pressure dispersion structure according to claim 3, characterized in that, The fixing plate has multiple ventilation slots on its side.

6. A flexible lumbar support cushion with a pressure dispersion structure according to claim 3, characterized in that, It also includes a first pressure regulating component or a second pressure regulating component that cooperates with the sealing component. The first pressure regulating component includes a screw cap that is threaded onto the outer wall of the right side of the valve cylinder.

7. A flexible lumbar support cushion with a pressure dispersion structure according to claim 1, characterized in that, The waist support has symmetrical ventilation holes, and the rear side of the waist support has symmetrical reinforcing ribs.

8. A flexible lumbar support cushion with a pressure dispersion structure according to claim 1, characterized in that, A carrying hole is provided between the backrest and the second soft pad.

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