Air cushion turning-over bed
By designing an air cushion turnover bed, using an air pump and a check valve to control the expansion and contraction of the airbag, the problem of existing nursing beds being difficult to assist bed resting users is solved, and the effect of no manpower turning over and improving safety is achieved.
Patent Information
- Application Number
- CN202421094845.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing nursing beds are difficult to assist bed restoring, especially those with large weight, which requires multiple people to cooperate, which increases the difficulty of nursing.
Design an air cushion turn-over bed, including a bed frame, a mattress, an air pump and an solenoid valve. The mattress consists of multiple airbags and a check valve. The expansion and contraction of the airbags are controlled through the air pump and check valve, forming a height difference to assist the turn-over .
Through the expansion and contraction of the airbag, unmanned assisted bed resting is achieved, reducing the difficulty of care, and improving safety through flexible airbags and mattresses.
Smart Images
Figure CN222444647U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of furniture, in particular to an air-cushion turning bed. Background Art
[0002] Bedridden people who need to use nursing beds (such as living patients, the elderly, or people with mobility problems due to other special reasons) are mostly people with limited mobility (or restrictions). Due to their limited mobility, their bodies are pressed on the bed for a long time, which can easily cause pressure sores on the pressure-bearing parts of the body, affecting the health of bedridden people. Therefore, it is necessary to turn the bed over regularly to change the pressure-bearing parts to avoid long-term pressure on a single part of the body; on the other hand, when performing physical therapy or wiping the body of bedridden people, it is also necessary to turn the patient over for the operation.
[0003] It is understandable that bedridden patients have mobility problems and are unable to turn over by themselves, so they need medical staff to help turn their bodies and use cushions to keep them in the turned position. That is, someone needs to lift their bodies, and other people need to fix the cushions (or other supports) on the bed. Especially for heavy patients, more people's cooperation is often needed to turn them over.
[0004] Therefore, how to make the nursing bed have the ability to assist bedridden people to turn over and reduce the difficulty of nursing is a problem that needs to be solved. Utility Model Content
[0005] The utility model aims to overcome the shortcomings of the prior art and provide an air-cushion turning bed.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] An air-cushion turning bed, comprising: a bed frame, a mattress, an air pump and a solenoid valve connected to the air pump;
[0008] The mattress comprises a bottom mattress, a plurality of air bags, and a plurality of on-off valves. The air bags are provided with an air inlet pipe and an exhaust pipe. The air pump delivers high-pressure gas to the air bags through the air inlet pipe to inflate the air bags. The on-off valve is provided at the end of each exhaust pipe.
[0009] The stop valve includes a valve body, a return spring, a valve core, a cover and a sealing ring. The cover is arranged on an end of the valve body away from the exhaust pipe. The valve core is slidably arranged in the valve body. The valve core includes an anti-leakage flange and a pressure relief rod. The pressure relief rod passes through the cover, and an exhaust groove is arranged on the outer wall of the pressure relief rod. An exhaust hole is opened on the anti-leakage flange. The return spring provides elastic force to make the anti-leakage flange and the cover abut against each other. The sealing ring is arranged on the side of the cover that contacts the anti-leakage flange. The sealing ring is used to separate the exhaust hole from the pressure relief rod.
[0010] In one embodiment, the plurality of air bags are parallel to each other, and each of the air bags extends along the long side direction of the bed frame.
[0011] In one embodiment, each of the airbags is in an expanded state.
[0012] In one embodiment, each of the airbags is in a deflated state.
[0013] In one of the embodiments, a groove for accommodating the airbag is provided on the bottom mattress.
[0014] In one embodiment, the mattress further includes a protective film, which closes the opening of the groove and covers the airbag.
[0015] In one of the embodiments, a plurality of elastic sheets are provided at the edge of each of the grooves, and intervals are provided between adjacent elastic sheets, and each of the elastic sheets is in contact with the outer wall of the protective film.
[0016] In one embodiment, a plurality of the exhaust holes are provided, and the plurality of the exhaust holes are distributed in a circular array with the pressure relief rod as the center, and the distance between each of the exhaust holes and the pressure relief rod is greater than the diameter of the sealing ring.
[0017] In one of the embodiments, a guardrail is provided at the edge of the bed frame.
[0018] In one embodiment, the pressure relief rod is partially exposed outside the cover, and a trigger button is provided at the exposed position of the pressure relief rod.
[0019] The above technical solution has the following beneficial effects:
[0020] 1. The airbag can be controlled to expand or contract through the air pump and the on / off valve, so that a height difference is formed between adjacent airbags, allowing the body of the person lying on the bed to tilt, replacing human assistance to complete the turning action of the bedridden person, reducing the difficulty of nursing;
[0021] 2. The airbag is made of flexible material, and there is a bottom mattress under the airbag, which can prevent the bedridden person from getting hurt when turning over, and it is highly safe;
[0022] 3. The airbag will be exhausted only when the check valve is triggered. After the external force is removed, the check valve will block the exhaust pipe again, so that the exhaust volume can be controlled according to actual needs and the turning angle of the bedridden person can be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 This is a structural diagram of an air-cushion turning bed;
[0025] Figure 2 is a schematic diagram of the structure of a mattress;
[0026] Figure 3 is a schematic cross-sectional view of a single airbag;
[0027] Figure 4 is a schematic cross-sectional view of a mattress when all air cells are in an expanded state;
[0028] Figure 5 This is a schematic diagram of the status of each air bag on the mattress during turning over operation;
[0029] Figure 6 is a schematic cross-sectional view of a mattress when all air cells are in a contracted state;
[0030] Figure 7 The figure is a schematic diagram of the disassembly of the stop valve;
[0031] Figure 8 It is a schematic diagram of the internal structure when the stop valve is not triggered;
[0032] Fig. 9 It is a schematic diagram of the internal structure after the stop valve is triggered;
[0033] Fig.10 It is a structural diagram of the valve core. DETAILED DESCRIPTION
[0034] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.
[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0037] See also Figure 1 The utility model provides an air-cushion turning bed 10 , which includes: a bed frame 100 , a mattress 200 , an air pump 300 and a solenoid valve 400 connected to the air pump 300 .
[0038] See also Figure 2 and Figure 3 The mattress 200 includes a base 210, a plurality of airbags 220, and a plurality of stop valves 230. The airbags 220 are parallel to each other, and each airbag 220 extends along the long side direction of the bed frame 100, that is, the airbag 220 extends from the head of the bed to the foot of the bed. The airbag 220 is provided with an air inlet pipe 221 and an exhaust pipe 222. The air pump 300 delivers high-pressure gas to the airbag 220 through the air inlet pipe 221, so as to expand the airbag 220; a stop valve 230 is provided at the end of each exhaust pipe 222, and the stop valve 230 is in a normally closed state to prevent the gas in the airbag 220 from being discharged. When the stop valve 230 is triggered, the gas in the airbag 220 can be discharged from the exhaust pipe 222.
[0039] Among them, the solenoid valve 400 is connected to the air pump 300, and the solenoid valve 400 is an automated basic component that uses electromagnetic control to control the flow direction of the fluid. In the present application, the gas output by the air pump 300 is controlled by the solenoid valve 400 to guide the gas toward the target airbag 220. Specifically, the above-mentioned nursing bed 10 with auxiliary turning function controls the expansion or contraction of multiple airbags 220 to form a height difference between adjacent airbags 220, thereby tilting the body of the person lying on the bed, thereby achieving the purpose of assisting turning. Since it is necessary to make some airbags 220 in an expanded state and the remaining airbags 220 in a contracted state, a solenoid valve 400 is set at the output end of the air pump 300, and the solenoid valve 400 guides the high-pressure gas into the target airbag 220, instead of making all airbags 220 expand (or contract) synchronously.
[0040] See also Figure 7 and Fig.10 The stop valve 230 includes a valve body 231, a return spring 232, a valve core 233, a cover 234 and a sealing ring 235. The cover 234 is arranged on the end of the valve body 231 away from the exhaust pipe 222. The valve core 233 is slidably arranged in the valve body 231. The valve core 233 includes a leak-proof flange 21 and a pressure relief rod 22. The pressure relief rod 22 passes through the cover 234, and an exhaust groove 2 is arranged on the outer wall of the pressure relief rod 22. An exhaust hole 1 is opened on the leak-proof flange 21. The return spring 232 provides elastic force to make the leak-proof flange 21 and the cover 234 abut against each other. The sealing ring 235 is arranged on the side of the cover 234 that contacts the leak-proof flange 21. The sealing ring 235 is used to separate the exhaust hole 1 from the pressure relief rod 22.
[0041] The principle of the on-off valve 230 controlling the exhaust pipe 222 is as follows:
[0042] The valve core 233 is mainly composed of an anti-leakage flange 21 and a pressure relief rod 22. The cross-sectional shape of the anti-leakage flange 21 is consistent with the inner cavity contour of the valve body 231. The pressure relief rod 22 is located at the center of the anti-leakage flange 21, and a sealing cover 234 is passed through one end of the valve core 233, that is, the valve core 233 and the inner cavity of the valve body 231 form a piston-like structure.
[0043] The return spring 232 provides elastic force to drive the valve core 233 to move toward the side where the sealing cover 234 is located, so that the anti-leakage flange 21 and the sealing cover 234 are abutted against each other, and at this time, the sealing ring 235 is deformed under pressure and tightly adheres to the anti-leakage flange 21. The sealing ring 235 is squeezed and deformed to form a barrier, separating the exhaust hole 1 from the pressure relief rod 22, so that the gas in the exhaust pipe 222 cannot be discharged. Figure 8 shown.
[0044] It should be noted that the diameter of the sealing ring 235 is D1, the diameter of the pressure relief rod 22 is D2, and the distance from the exhaust hole 1 to the center of the pressure relief rod 22 is L, L>D1>D2, so when the anti-leakage flange 21 and the cover 234 are against each other, the sealing ring 235 can be used as a boundary to separate the pressure relief rod 22 and the exhaust hole 1. Preferably, there are multiple exhaust holes 1, and the multiple exhaust holes 1 are distributed in a circular array with the pressure relief rod 22 as the center, and the distance between each exhaust hole 1 and the pressure relief rod 22 is greater than the diameter of the sealing ring 235.
[0045] Pressing the pressure relief rod 22 and pushing the valve core 233 can separate the anti-leakage flange 21 from the sealing cover 234. As the anti-leakage flange 21 is separated from the sealing cover 234, and as the pressure relief rod 22 extends into the inner cavity of the valve body 231, the exhaust groove 2 on the outer wall thereof also extends into the valve body 231. One end of the exhaust groove 2 extends into the valve body 231, and the other end is located outside the valve body 231, forming a channel for gas exhaust. Fig. 9As shown, the gas in the exhaust pipe 222 passes through the exhaust hole 1 and is discharged through the exhaust groove 2.
[0046] When the bedridden person needs to be assisted to turn over, the lying position of the bedridden person is first identified, and which airbags 220 are under pressure are determined, and then which airbags 200 should be ventilated or exhausted. Specifically, there are two types:
[0047] In the first embodiment, when the air-cushion turning bed 10 is in use, each air bag 220 is in an expanded state. When the bedridden person lies on the bed, the air bag 220 bears the pressure.
[0048] After confirming the position of the target airbag 200, the pressure relief rod 22 on the target airbag 200 is pressed to change the target airbag 200 from an expanded state to a contracted state, while the other airbags 200 adjacent to it are still in an expanded state. Figure 4 The status shown changes to Figure 5 In the state shown, a height difference is formed between adjacent airbags 200, and the body of the bedridden person tilts toward the side where the target airbag 200 is located, thereby completing the turning over.
[0049] In the second embodiment, when the air-cushion turning bed 10 is in use, each air bag 220 is in a contracted state. When the bedridden person lies on the bed, the bottom mattress 210 bears the pressure.
[0050] After confirming the position of the target airbag 200, the air pump 300 starts to operate, and the high pressure generated by it is guided into the target airbag 200 through the solenoid valve 400, so that the target airbag 200 changes from a contracted state to an expanded state, while the other airbags 200 adjacent to it remain in a contracted state. In this way, the height difference between the adjacent airbags 200 can also be formed. Figure 6 The status shown changes to Figure 5 In the state shown, the bedridden person's body presses against one side of the target airbag 200 and is lifted up (tilted toward the side away from the target airbag 200), completing the turning over.
[0051] The above technical solution has the following beneficial effects:
[0052] 1. The air pump 300 and the on / off valve 230 can be used to control the airbag 220 to expand or contract, so that a height difference is formed between adjacent airbags 220, so that the body of the person lying on the bed can be tilted, thereby replacing human assistance to complete the turning action of the bedridden person and reducing the difficulty of nursing;
[0053] 2. The airbag 220 is made of flexible material, and a bottom mattress 210 is provided under the airbag 220, which can prevent the bedridden person from getting hurt when turning over, and is highly safe;
[0054] 3. The airbag 220 is exhausted only when the check valve 230 is triggered. After the external force is removed, the check valve 230 blocks the exhaust pipe 222 again, so that the exhaust volume can be controlled according to actual needs, and the turning angle of the bedridden person can be flexibly adjusted.
[0055] In one embodiment, please refer to Figure 2 The bottom mattress 210 is provided with a groove 211 for accommodating the airbag 220. The groove depth of the groove 211 is less than the thickness of the airbag 220 when it is inflated.
[0056] See also Figure 2 and Figure 3 The mattress 200 further includes a protective film 240, which closes the opening of the groove 211 and covers the airbag 220. The protective film 240 is made of breathable fabric, which covers the airbag 220, separates the airbag 220 from the bedridden person, and can form a protection outside the airbag 220 to prevent clothing or other hard objects from scratching the airbag 220. Since the protective film 240 does not need to be sealed, it can be made of a material with good softness to improve the comfort of the user.
[0057] In one embodiment, please refer to Figure 2 and Figure 3 A plurality of elastic sheets 212 are provided at the edge of each groove 211, and there are intervals between adjacent elastic sheets 212, and each elastic sheet 212 is in contact with the outer wall of the protective film 240. When the airbag 220 contracts, the elastic sheet 212 turns into the groove 211 under its own elastic action, and at the same time drives the protective film 240 to fold into the groove 211; when the airbag 220 expands, the protective film 240 is propped up by the airbag 220, and the elastic sheet 212 guides the protective film 240 to unfold outward.
[0058] Preferably, see Figure 1 The edge of the bed frame 100 is provided with a guardrail 110. On the one hand, the guardrail 110 can be used as a limit to prevent the bedridden person from accidentally falling off the bed when turning over. On the other hand, the guardrail 110 also forms a fulcrum that can be held, and the bedridden person can hold the guardrail 110 to turn over.
[0059] In one embodiment, please refer to Figure 8 and Fig. 9 The pressure relief rod 22 is partially exposed outside the cover 234, and a trigger button 236 is provided at the exposed position on the pressure relief rod 22. The trigger button 236 is used as a gripping part to increase the gripping area and facilitate the application of force to push and pull the pressure relief rod 22.
[0060] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An air-cushion turning bed, characterized in that: include: A bed frame, a mattress, an air pump, and a solenoid valve connected to the air pump; The mattress comprises a bottom mattress, a plurality of air bags, and a plurality of on-off valves. The air bags are provided with an air inlet pipe and an exhaust pipe. The air pump delivers high-pressure gas to the air bags through the air inlet pipe to inflate the air bags. The on-off valve is provided at the end of each exhaust pipe. The stop valve includes a valve body, a return spring, a valve core, a cover and a sealing ring. The cover is arranged on an end of the valve body away from the exhaust pipe. The valve core is slidably arranged in the valve body. The valve core includes an anti-leakage flange and a pressure relief rod. The pressure relief rod passes through the cover, and an exhaust groove is arranged on the outer wall of the pressure relief rod. An exhaust hole is opened on the anti-leakage flange. The return spring provides elastic force to make the anti-leakage flange and the cover abut against each other. The sealing ring is arranged on the side of the cover that contacts the anti-leakage flange. The sealing ring is used to separate the exhaust hole from the pressure relief rod.
2. The air-cushion turning bed according to claim 1, characterized in that: The plurality of air bags are parallel to each other, and each of the air bags extends along the long side direction of the bed frame.
3. The air-cushion turning bed according to claim 1, characterized in that: Each of the airbags is in an expanded state.
4. The air-cushion turning bed according to claim 1, characterized in that: Each of the airbags is in a contracted state.
5. The air-cushion turning bed according to claim 1, characterized in that: The bottom mattress is provided with a groove for accommodating the airbag.
6. The air-cushion turning bed according to claim 5, characterized in that: The mattress further comprises a protective film, which closes the opening of the groove and covers the airbag.
7. The air-cushion turning bed according to claim 6, characterized in that: A plurality of elastic sheets are arranged at the edge of each of the grooves, and intervals are arranged between adjacent elastic sheets. Each of the elastic sheets is in contact with the outer wall of the protective film.
8. The air-cushion turning bed according to claim 1, characterized in that: There are a plurality of exhaust holes, which are distributed in a circular array with the pressure relief rod as the center, and the distance between each exhaust hole and the pressure relief rod is greater than the diameter of the sealing ring.
9. The air-cushion turning bed according to claim 1, characterized in that: A guardrail is arranged at the edge of the bed frame.
10. The air-cushion turning bed according to claim 1, characterized in that: The pressure relief rod is partially exposed outside the cover, and a trigger button is arranged at the exposed position of the pressure relief rod.