Alternating seat air cushion

Abstract

The utility model relates to the technical field of air cushions, in particular to an alternating type seat air cushion which comprises an air cushion body, and the air cushion body comprises an outer cavity and an inner cavity. The miniature air pump is connected with the first air valve to inflate the outer cavity of the air cushion, when the inner cavity needs to be inflated, the miniature air pump needs to be connected with the second air valve through the first connecting pipe to pump out air in the outer cavity, then the second connecting pipe is connected with the third air valve, and the pumped-out air passes through the second connecting pipe to inflate the inner cavity. When the outer cavity needs to be inflated, conversely, when the air pressure in the outer cavity is insufficient or too large, the air in the outer cavity is pumped in or pumped out by adjusting the first air valve, then the air pressure of the inner cavity and the air pressure of the outer cavity can be adjusted according to the requirements of a patient, the pressure can be effectively dispersed, and local continuous pressure can be reduced; more comfortable sitting posture experience is provided for a patient, so that the comfort of the seat air cushion is greatly improved, and the risk of pressure sores is prevented.

Description

Technical Field

[0001] The utility model relates to a seat air cushion, in particular to an alternating seat air cushion, belonging to the technical field of air cushions. Background Art

[0002] Seat cushions are mainly used to provide patients with a more comfortable sitting experience and a certain degree of decompression. They usually include a cushion body, which is generally made of durable and soft materials and can be inflated and deflated to adjust the hardness and height; there are also air valves for controlling the inflation and deflation of the cushions; and connecting pipes for connecting to the inflation device. This type of seat cushion can help patients who are bedridden or sitting for a long time to reduce local pressure and prevent the formation of pressure sores. It can also improve the comfort and stability of patients on the seat, making it easier for them to carry out some daily activities or receive treatment.

[0003] Traditional seat air cushions need to be inflated manually or with the help of tools when in use, and it may be difficult to accurately adjust to the pressure value that is most suitable for the patient. Traditional air cushions cannot effectively disperse pressure and cannot provide a more comfortable sitting experience. They may cause patients to sit for long periods of time, causing discomfort. In addition, the parts of the patient that are in contact with the seat are continuously under pressure, which may also lead to poor blood circulation and easily cause ischemia and hypoxia of the skin and subcutaneous tissue, which in turn may lead to pressure sores. This greatly reduces the comfort of the seat air cushion and makes patients more susceptible to pressure sores.

[0004] Therefore, there is an urgent need to improve the alternating seat air cushion to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an alternating seat air cushion, which inflates the outer cavity of the air cushion by connecting the first valve valve through a micro air pump. When the inner cavity needs to be inflated, the micro air pump needs to be connected to the second valve valve through the first connecting pipe to extract the gas in the outer cavity, and then rely on the second connecting pipe to connect the third valve valve to draw the extracted gas into the inner cavity through the second connecting pipe. When the outer cavity needs to be inflated, on the contrary, when the air pressure in the outer cavity is insufficient or too high, the gas in the outer cavity is drawn in or out by adjusting the first valve valve, and then the air pressure in the inner and outer cavities of the gas can be adjusted according to the needs of the patient, which can effectively disperse the pressure, reduce local continuous pressure, and provide patients with a more comfortable sitting experience, thereby greatly improving the comfort of the seat air cushion and preventing the risk of pressure sores.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] An alternating seat air cushion comprises an air cushion, wherein the air cushion comprises an outer cavity and an inner cavity, a first valve is fixedly installed on one side of the outer cavity, a second valve is fixedly installed on the other side of the outer cavity, an end of the second valve valve away from the outer cavity is detachably connected to a first connecting pipe, an end of the first connecting pipe away from the second valve valve is fixedly connected to a micro air pump, a second connecting pipe is provided on one side of the first connecting pipe, the second connecting pipe is fixedly connected to the micro air pump, and an end of the second connecting pipe away from the micro air pump is detachably connected to a third valve valve, and an end of the third valve valve away from the second connecting pipe is fixedly connected to the inner cavity.

[0008] Preferably, the third valve is communicated with the inner cavity.

[0009] Preferably, the first valve and the second valve are both connected to the outer cavity.

[0010] Preferably, the first valve valve includes a valve body, the internal thread of the valve body is connected to a valve barrel, the valve barrel is slidably connected to a valve core, the valve core passes through the valve barrel and extends to one side of the valve barrel, one end of the valve core is fixedly connected to a limiting block, a return spring is provided on the outer side of the valve core, one end of the return spring is fixedly connected to the limiting block, and the other end of the return spring is fixedly connected to the inner bottom surface of the valve barrel.

[0011] Preferably, a blocking disk is provided at the lower end of the valve cylinder, the blocking disk is fixedly mounted on the valve core, a sealing ring is fixedly mounted on the blocking disk, and the blocking disk is in contact with the lower end of the valve cylinder.

[0012] Preferably, the first valve, the second valve and the third valve have the same structure.

[0013] Preferably, the inner cavity is located inside the outer cavity, and the inner cavity is fixedly connected to the outer cavity.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. The utility model connects the first valve valve to inflate the outer cavity of the air cushion through a micro air pump. When the inner cavity needs to be inflated, the micro air pump needs to be connected to the second valve valve through the first connecting tube to extract the gas in the outer cavity, and then rely on the second connecting tube to connect to the third valve valve to pump the extracted gas into the inner cavity through the second connecting tube. When the outer cavity needs to be inflated, on the contrary, when the air pressure in the outer cavity is insufficient or too high, the gas in the outer cavity can be pumped in or out by adjusting the first valve valve, and then the air pressure in the inner and outer cavities can be adjusted according to the needs of the patient, which can effectively disperse the pressure, reduce local continuous pressure, and provide patients with a more comfortable sitting experience, thereby greatly improving the comfort of the seat air cushion and preventing the risk of pressure sores.

[0016] 2. The utility model provides a first valve, a second valve and a third valve. When the air cushion needs to be inflated, the micro air pump is connected to the valve body through a connecting pipe, and the valve core slides downward on the valve tube. The return spring is squeezed, the blocking disk is away from the valve tube, and the gas enters the interior of the air cushion through the valve tube. When the air cushion needs to be deflated, the valve core is moved to drive the valve core and the blocking disk to move downward, and the gas is discharged outward through the valve tube. The valve core is released, and the return spring rebounds by elastic force, driving the valve core and the blocking disk to move upward. The blocking disk is against the valve tube, and the sealing ring can effectively prevent the gas from flowing out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 The overall structural diagram provided by the utility model;

[0019] Figure 2 A cross-sectional view of the first valve structure provided by the utility model;

[0020] Figure 3 An exploded view of the first valve structure provided by the utility model;

[0021] Figure 4 This is a partial structural exploded diagram provided by the utility model.

[0022] In the figure, 1, air cushion; 2, outer cavity; 3, inner cavity; 4, first valve; 401, valve body; 402, valve cylinder; 403, valve core; 404, limit block; 405, return spring; 406, blocking disk; 407, sealing ring; 5, second valve; 6, first connecting pipe; 7, micro air pump; 8, second connecting pipe; 9, third valve. DETAILED DESCRIPTION

[0023] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] like Figure 1-Figure 4 As shown, the alternating seat air cushion provided in this embodiment includes an air cushion 1, which includes an outer cavity 2 and an inner cavity 3. The inner cavity 3 is located on the inner side of the outer cavity 2, and the inner cavity 3 is fixedly connected to the outer cavity 2. A first valve 4 is fixedly installed on one side of the outer cavity 2, and a second valve 5 is fixedly installed on the other side of the outer cavity 2. The first valve 4 and the second valve 5 are both connected to the outer cavity 2. The end of the second valve 5 away from the outer cavity 2 is detachably connected to a first connecting pipe 6, and the end of the first connecting pipe 6 away from the second valve valve 5 is fixedly connected to a micro air pump 7. A second connecting pipe 8 is provided on one side of the first connecting pipe 6, and the second connecting pipe 8 is fixedly connected to the micro air pump 7. The end of the second connecting pipe 8 away from the micro air pump 7 is detachably connected to a third valve valve 9, and the end of the third valve valve 9 away from the second connecting pipe 8 is fixedly connected to the inner cavity 3. It is connected to the inner cavity 3 and the first valve valve 4 is connected to the micro air pump 7 to inflate the outer cavity 2 of the air cushion 1. When the inner cavity 3 needs to be inflated, the micro air pump 7 needs to be connected to the second valve valve 5 through the first connecting pipe 6 to extract the gas in the outer cavity 2, and then rely on the second connecting pipe 8 to connect to the third valve valve 9 to draw the extracted gas into the inner cavity 3 through the second connecting pipe 8. When the outer cavity 2 needs to be inflated, on the contrary, when the air pressure in the outer cavity 2 is insufficient or too high, the gas in the outer cavity 2 can be drawn in or out by adjusting the first valve valve 4, and then the air pressure in the gas inner cavity 3 and the outer cavity 2 can be adjusted according to the patient's needs, which can effectively disperse the pressure, reduce local continuous pressure, and provide patients with a more comfortable sitting experience, thereby greatly improving the comfort of the seat air cushion 1 and preventing the risk of pressure sores.

[0025] Further, such as Figure 1-Figure 4As shown, the first valve valve 4 includes a valve body 401, the internal thread of the valve body 401 is connected to a valve cylinder 402, and a valve core 403 is slidably connected to the valve cylinder 402, the valve core 403 penetrates the valve cylinder 402 and extends to one side of the valve cylinder 402, one end of the valve core 403 is fixedly connected to a limiting block 404, a return spring 405 is sleeved on the outer side of the valve core 403, and one end of the return spring 405 is fixedly connected to the limiting block 404, and the other end of the return spring 405 is fixedly connected to the inner bottom surface of the valve cylinder 402, and a blocking disk 406 is provided at the lower end of the valve cylinder 402, and the blocking disk 406 is fixedly installed on the valve core 403, and a sealing ring 407 is fixedly installed on the blocking disk 406, and the blocking disk 406 fits with the lower end of the valve cylinder 402, and is provided The first valve valve 4, the second valve valve 5 and the third valve valve 9, when the air cushion 1 needs to be inflated, the micro air pump 7 is connected to the valve body 401 through the connecting pipe, the valve core 403 slides downward on the valve cylinder 402, the return spring 405 is squeezed, the blocking disk 406 is away from the valve cylinder 402, and the gas enters the interior of the air cushion 1 through the valve cylinder 402. When the air cushion 1 needs to be deflated, the valve core 403 is moved to drive the valve core 403 and the blocking disk 406 to move downward, and the gas is discharged outward through the valve cylinder 402, and the valve core 403 is released. The return spring 405 rebounds by elastic force, driving the valve core 403 and the blocking disk 406 to move upward, and the blocking disk 406 is against the valve cylinder 402, and then the sealing ring 407 can effectively prevent the gas from flowing out.

[0026] Further, if Figure 1 , Figure 4 As shown, the first valve valve 4, the second valve valve 5 and the third valve valve 9 have the same structure, and are respectively connected to the first connecting pipe 6 and the second connecting pipe 8 through a micro air pump 7, and then the inner cavity 3 and the outer cavity 2 of the air cushion 1 are alternately pumped and inflated through the second valve valve 5 and the third valve valve 9. The first valve valve 4 can pump in or out the gas inside the outer cavity 2, thereby facilitating the adjustment of the air pressure in the outer cavity 2.

[0027] like Figure 1-Figure 4 As shown, the principle of the alternating seat air cushion provided in this embodiment is as follows:

[0028] The air cushion 1 includes an outer cavity 2 and an inner cavity 3, the inner cavity 3 is located on the inner side of the outer cavity 2, and the inner cavity 3 is fixedly connected to the outer cavity 2, a first valve 4 is fixedly installed on one side of the outer cavity 2, and a second valve 5 is fixedly installed on the other side of the outer cavity 2, the first valve 4 and the second valve 5 are both connected to the outer cavity 2, the end of the second valve 5 away from the outer cavity 2 is detachably connected to a first connecting pipe 6, the end of the first connecting pipe 6 away from the second valve 5 is fixedly connected to a micro air pump 7, a second connecting pipe 8 is provided on one side of the first connecting pipe 6, the second connecting pipe 8 is fixedly connected to the micro air pump 7, and the end of the second connecting pipe 8 away from the micro air pump 7 is detachably connected to a third valve 9, the end of the third valve 9 away from the second connecting pipe 8 is fixedly connected to the inner cavity 3, the third valve 9 is connected to the inner cavity 3, and the micro air pump 7 is connected to the inner cavity 3. The air pump 7 is connected to the first valve valve 4 to inflate the outer cavity 2 of the air cushion 1. When the inner cavity 3 needs to be inflated, the micro air pump 7 needs to be connected to the second valve valve 5 through the first connecting tube 6 to extract the gas in the outer cavity 2, and then rely on the second connecting tube 8 to connect to the third valve valve 9 to draw the extracted gas into the inner cavity 3 through the second connecting tube 8. When the outer cavity 2 needs to be inflated, on the contrary, when the air pressure in the outer cavity 2 is insufficient or too high, the first valve valve 4 is adjusted to draw in or out the gas in the outer cavity 2, and then the air pressure in the gas inner cavity 3 and the outer cavity 2 can be adjusted according to the patient's needs, which can effectively disperse the pressure, reduce local continuous pressure, and provide patients with a more comfortable sitting experience, thereby greatly improving the comfort of the seat air cushion 1 and preventing the risk of pressure sores.

[0029] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0030] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0031] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An alternating seat air cushion, comprising an air cushion (1), characterized in that: The air cushion (1) comprises an outer cavity (2) and an inner cavity (3); a first valve (4) is fixedly mounted on one side of the outer cavity (2); a second valve (5) is fixedly mounted on the other side of the outer cavity (2); an end of the second valve (5) away from the outer cavity (2) is detachably connected to a first connecting pipe (6); an end of the first connecting pipe (6) away from the second valve (5) is fixedly connected to a micro air pump (7); a second connecting pipe (8) is provided on one side of the first connecting pipe (6); the second connecting pipe (8) is fixedly connected to the micro air pump (7); and an end of the second connecting pipe (8) away from the micro air pump (7) is detachably connected to a third valve (9); an end of the third valve (9) away from the second connecting pipe (8) is fixedly connected to the inner cavity (3).

2. The alternating seat air cushion according to claim 1, characterized in that: The third air gate valve (9) is in communication with the inner cavity (3).

3. The alternating seat air cushion according to claim 1, characterized in that: The first air valve (4) and the second air valve (5) are both connected to the outer cavity (2).

4. The alternating seat air cushion according to claim 3, characterized in that: The first valve (4) comprises a valve body (401), the internal thread of the valve body (401) is connected to a valve barrel (402), the valve barrel (402) is slidably connected to a valve core (403), the valve core (403) passes through the valve barrel (402) and extends to one side of the valve barrel (402), one end of the valve core (403) is fixedly connected to a limit block (404), a return spring (405) is sleeved on the outer side of the valve core (403), one end of the return spring (405) is fixedly connected to the limit block (404), and the other end of the return spring (405) is fixedly connected to the inner bottom surface of the valve barrel (402).

5. The alternating seat air cushion according to claim 4, characterized in that: A blocking disk (406) is provided at the lower end of the valve cylinder (402), and the blocking disk (406) is fixedly mounted on the valve core (403). A sealing ring (407) is fixedly mounted on the blocking disk (406), and the blocking disk (406) is in contact with the lower end of the valve cylinder (402).

6. The alternating seat air cushion according to claim 1, characterized in that: The first air valve (4), the second air valve (5) and the third air valve (9) have the same structure.

7. The alternating seat air cushion according to claim 1, characterized in that: The inner cavity (3) is located on the inner side of the outer cavity (2), and the inner cavity (3) is fixedly connected to the outer cavity (2).

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