A bathing device suitable for community care of disabled and demented old people

Abstract

This invention discloses a bathing device suitable for community care of disabled and demented elderly people, including a mobile main unit and a foldable bathing mattress detachably connected to the mobile main unit; the bottom of the mobile main unit is equipped with universal locking wheels, and its side wall or back is equipped with a push handle for moving with caregivers to the side of the elderly person's bed; the mobile main unit is equipped with a water supply component. This invention, through the cooperation of the mobile main unit and the foldable bathing mattress, temporarily forms an open recessed bathing area next to a regular bed, allowing disabled elderly people to complete bathing care without having to be moved as a whole; the inflatable mattress body and the supporting airbag layer are independently controlled, taking into account the shaping of the enclosure, flexible support, posture stability and local pressure reduction; combined with the water supply, sewage discharge and warm air components, it achieves constant temperature rinsing, sewage recycling and post-wash drying, reducing the risk of injury during transport, cold water stimulation, and the risk of shock and resistance from demented elderly people, making it more suitable for community home bathing assistance and home bed care scenarios.

Description

Technical Field

[0001] This invention mainly relates to the field of elderly care equipment technology, specifically a bathing device suitable for community care of disabled and demented elderly people. Background Technology

[0002] With the development of home-based elderly care, community nursing, and in-home bathing services, the daily bathing and care needs of disabled, semi-disabled, and dementia-affected elderly people are gradually increasing. For elderly people who are bedridden for a long time, have poor limb mobility, or have cognitive decline, bathing is not just a matter of cleanliness, but also involves many factors such as body position transfer, body support, water temperature control, wastewater collection, nursing safety, and the physical burden on caregivers.

[0003] Existing elderly bathing facilities mainly include fixed bathtubs, sitz baths, split-type bathing pools, capsule-type bathing equipment, and bathing and care equipment with intelligent control functions. Among them, fixed bathtubs and capsule-type bathing equipment are usually large in size and have high installation costs. They also have high requirements for bathroom area, water supply and drainage conditions, and electrical installation conditions, making them difficult to adapt to the small and compact bathroom environments in some older residential buildings. If such large facilities are centrally located in community nursing stations or elderly care service centers, it is still necessary to transfer the elderly from their bedridden positions at home to the community or nursing station, and then to the bathing equipment, which cannot truly reduce the transportation steps before and after bathing for disabled elderly people.

[0004] While sitz bath chairs or portable bath chairs are relatively small, they typically require elderly individuals to maintain a certain sitting posture, making them unsuitable for severely disabled elderly, long-term bedridden elderly, and those unable to actively cooperate with transfers. For severely disabled elderly, most existing equipment still requires them to transfer from their bed to the bathing device, usually necessitating multiple caregivers to assist in lifting, carrying, or moving them. This not only easily leads to bumps, slips, skin strain, and joint discomfort for the elderly but also significantly increases the burden on the backs of caregivers. Furthermore, existing equipment often focuses on rinsing or spraying functions, with insufficient consideration given to spinal support, lateral limb restraint, heel and sacral decompression, and pressure sore prevention during bathing for bedridden elderly. This can easily result in unstable posture, localized skin pressure, and difficulty in exposing the areas to be cleaned.

[0005] For elderly people with dementia, unfamiliar environments, enclosed spaces, sudden water flow, temperature changes, and being moved by multiple people can all trigger tension, fear, agitation, or resistance. While some modular or intelligent bathing equipment can achieve centralized cleaning or programmed control, it still requires the elderly to enter the specific equipment and lacks open observation, flexible enclosure, and gradual operation design for the bathing process of elderly people with cognitive decline. In actual care, bathing is easily interrupted due to resistance from the elderly.

[0006] Therefore, for community care and home-based bathing scenarios, there is a greater need for a bathing device that can be pushed by caregivers to the bedside of elderly people. This device should be adaptable to typical family bedrooms, bedside spaces, and small bathrooms, creating a controllable bathing area on the bedside without requiring the elderly person to leave their original bed position. It should also address issues such as warm water supply, wastewater collection, inflation and deflation molding, flexible support, and post-use storage and cleaning. This would reduce the number of times elderly people need to be moved, decrease the workload of caregivers, and improve the safety, comfort, and sustainability of bathing for disabled and cognitively impaired elderly people. Summary of the Invention

[0007] The purpose of this invention is to provide a bathing device suitable for community care of disabled and demented elderly people, in order to solve the problems that existing bathing devices usually require transferring disabled elderly people to fixed devices, occupy a large space, and are difficult to adapt to home and community bedside care scenarios.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A bathing device suitable for community care of disabled and demented elderly people includes a mobile host and a foldable bathing mattress that is detachably connected to the mobile host.

[0009] The mobile host is equipped with universal locking wheels at the bottom and a push handle on its side or back for moving with caregivers to the side of the elderly person's bed. The mobile host is equipped with a water supply component, a sewage discharge component, an air inflation component, a heating component, and a control unit.

[0010] The foldable bathing mattress is used to lay on the bed surface and, after inflation, forms a recessed bathing area for the elderly to lie down. It includes an inflatable mattress body, a supporting airbag layer located inside the lying area of ​​the inflatable mattress body, a water-collecting pocket located on the outer side of the head end of the inflatable mattress body, and an inner lining pad that can be detachably connected to the surface of the inflatable mattress body.

[0011] The foldable bath mattress is provided with a mattress-side air passage connection part connected to the inflation / deflation assembly and a sewage discharge interface connected to the sewage discharge assembly. The mattress-side air passage connection part includes at least an outer air inlet interface and an outer air outlet interface connected to the inflatable mattress body, as well as an airbag inlet interface and an airbag deflation interface connected to the supporting airbag layer.

[0012] The inflatable mattress body includes an inflatable fabric layer and a segmented support plate covered within the inflatable fabric layer. The segmented support plate is formed by splicing together multiple sections of a base plate and four side panels. The inflatable fabric layer forms an internal inflation cavity that communicates with the outer air inlet and outer air outlet.

[0013] Furthermore, the segmented support plate includes multiple base plates laid along the bottom of the air mattress body and multiple surrounding plates arranged around the air mattress body. Folding gaps are reserved between adjacent base plates, between adjacent surrounding plates, and between base plates and surrounding plates. The folding gaps form bending avoidance areas between adjacent plates.

[0014] The inflatable fabric layer covers the outside of the segmented support plate. After the internal inflation cavity is inflated, the inflatable fabric layer expands and tensions and limits the segmented support plate, so that multiple bottom plates form a bottom support structure, and multiple side panels flip up or stand up relative to the bottom plates to form a protective edge. The bottom support structure and the protective edge together form the recessed bathing area.

[0015] Furthermore, the inflatable mattress body and the supporting airbag layer have independent air passages, and the mattress side air passage connection part is provided on the side wall of the inflatable mattress body.

[0016] The mattress side air passage connection includes an exposed port of an outer air inlet pipe, an outer air outlet pipe, an airbag inlet pipe, and an airbag outlet pipe. The outer air inlet pipe and the outer air outlet pipe are connected to the internal inflation chamber of the inflatable fabric layer. The airbag inlet pipe and the airbag outlet pipe pass through the inflatable mattress body and are connected to the supporting airbag layer.

[0017] Furthermore, the inflation / deflation assembly includes an inflation pump, an inflation valve group, and a deflation valve group located inside the mobile host, as well as a first inflation port, a second inflation port, a first deflation return port, and a second deflation return port located outside the mobile host.

[0018] The first inflation port and the second inflation port are respectively connected to the inflation pump through the inflation valve group, and are respectively connected to the peripheral air inlet pipe and the airbag air inlet pipe.

[0019] The first and second vent return ports are respectively connected to the air inlet of the vent valve assembly and to the peripheral vent pipe and the airbag vent pipe. The exhaust port of the vent valve assembly is connected to the external environment of the mobile host.

[0020] Furthermore, the supporting airbag layer includes lateral rib areas located near the left and right sides of the elderly person's torso within the recessed bathing area, a central supporting area located between the two lateral rib areas and extending along the spine to the lower leg, a neck support area located at the corresponding position of the neck, a foot end area located at the corresponding position of the feet, and a headrest area located on the head end surface of the inflatable mattress body.

[0021] The airbag inlet pipe and airbag deflation pipe branch out into multiple inlet branches and multiple deflation branches within the supporting airbag layer, respectively. These multiple inlet branches and multiple deflation branches are respectively connected to the side rib area, central support area, neck support area, and foot area.

[0022] The headrest area is located on the surface of the inflatable mattress and is higher than other areas supporting the airbag layer.

[0023] Furthermore, the water supply assembly includes a clean water tank, an inlet filter, a water supply pump, an electric water heater, a pre-heating chamber, an electrically controlled three-way valve, and a temperature detector.

[0024] The mobile host is equipped with a handheld shower head mounted on its outer wall. The water outlet pipe of the electric water heater is connected to the handheld shower head pipe and the pre-heating tank via an electrically controlled three-way valve. The pre-heating tank is connected to the clean water tank via a return pipe. The control unit controls the switching of the electrically controlled three-way valve based on the detection signal from the temperature detector located at the inlet end of the pre-heating tank, so that the initial cold water or water that has not reached the set temperature discharged from the electric water heater enters the pre-heating tank and returns to the clean water tank.

[0025] Furthermore, the inflatable mattress body has a drainage hole in the area near the foot end, and the lower end of the drainage hole is fixedly connected to the first drainage corrugated pipe, which extends to the outside of the inflatable mattress body.

[0026] The water-collecting pocket is fixed to one side of the air mattress body near the headrest area. The water-collecting pocket includes a semi-circular support ring and a waterproof pocket body covering the outside of the semi-circular support ring. The bottom of the waterproof pocket body is provided with a second drainage corrugated pipe.

[0027] Furthermore, the sewage discharge assembly includes a three-way sewage discharge valve, a hair filter box, a sewage pump, and a sewage tank.

[0028] The two inlet ends of the drain valve are connected to the first drain bellows and the second drain bellows, respectively.

[0029] The hair filter box is located between the drain three-way valve and the drain pump. The hair filter box contains a filter basket bracket and a detachable hair filter basket mounted in the filter basket bracket.

[0030] Furthermore, the warm air assembly includes a warm air fan and a heating air box located inside the mobile host, and an oscillating fan head located outside the mobile host. The heating air box is connected to the air outlet side of the warm air fan, and the oscillating fan head is connected to the heating air box through a warm air output hose.

[0031] The swing head is connected to a bidirectional drive mechanism, which is used to drive the swing head to swing horizontally and tilt vertically.

[0032] Furthermore, the surface of the inflatable mattress body is provided with fasteners along the periphery of the recessed bathing area, and the inner liner is detachably connected to the surface of the inflatable mattress body through the fasteners and covers the recessed bathing area. The inner liner is provided with a drainage avoidance opening at the corresponding drainage hole.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention includes a mobile host and a foldable bathing mattress detachably connected to the mobile host. The inflatable mattress contains segmented support panels formed by splicing multiple sections of panels, including a base plate and four side panels. When the inflatable fabric layer is inflated, it tensions and limits the segmented support panels, allowing the multiple base plates to form a bottom support structure and the multiple side panels to fold up or stand up to form protective edges. This temporarily creates a recessed bathing area for the elderly to lie on a regular bed surface. This structure allows caregivers to complete bathing preparation and rinsing procedures beside the elderly person's bed without having to transport them entirely to a fixed bathtub, sitz bath chair, or cabin-type bathing equipment. This reduces the need for carrying, changing sitting or lying positions, and the process of moving the elderly person while they are wet, lowering the risk of bumps, slips, skin abrasions, and chills, while also reducing the physical burden on caregivers.

[0034] 2. This invention also includes independent air passages for the inflatable mattress body and the supporting airbag layer, separating the shaping and protective functions of the inflatable mattress body from the human body support function of the supporting airbag layer. Through this structure, caregivers can first perform low-pressure pre-shaping and peripheral shaping of the inflatable mattress body, gradually forming the recessed bathing area. Then, based on the elderly person's physical condition, weight, skin pressure, and bathing posture, the support pressure of the supporting airbag layer can be adjusted. This avoids the forming pressure of the protective edge and the human body support pressure from interfering with each other, resulting in insufficient support of the protective edge, excessively hard support surface, or localized pressure. Simultaneously, the lateral rib area 221, central support area 222, neck support area 223, foot area 224, and headrest area 225 in the supporting airbag layer can provide zoned flexible support for the elderly person's sides of the torso, from the spine to the lower legs, neck, and feet, which helps maintain a stable bathing posture and reduces localized pressure injuries.

[0035] 3. This invention also includes a water supply component, a sewage discharge component, and a warm air component. The water supply component, comprising an electric water heater, an electrically controlled three-way valve, a pre-heating chamber, and a temperature detector, works together to ensure that the initial cold water or water not yet at the set temperature discharged during the initial startup of the electric water heater first enters the pre-heating chamber and flows back to the clean water tank. Once the water temperature reaches the set range, it switches to the handheld shower head pipeline. The sewage discharge component, comprising a sewage discharge three-way valve, a hair filter box, a sewage pump, and a sewage tank, collects and discharges wastewater from body washing in the recessed bathing area and wastewater from head washing in the water collection bag. The warm air component provides preheating before bathing, heat preservation during bathing, and auxiliary drying after bathing. These structures work together to allow the device to complete warm water rinsing, wastewater recovery, and warm air drying at the bedside, reducing the burden of cold water stimulation, wastewater overflow, post-wash chilling, and repeated drying.

[0036] 4. Simultaneously, the foldable bathing mattress, when deflated, is easily placed under the elderly person's body. When inflated, it forms an open, flexible, recessed bathing area. The mobile unit provides water supply, wastewater drainage, inflation / deflation, heating, and control support for the foldable bathing mattress. Together, these features address the issues of high cost, large footprint, demanding installation requirements, and difficulty in integrating fixed or large-scale intelligent bathing equipment into home settings. For elderly people with dementia, the open, flexible, recessed bathing area, combined with a headrest and water collection bag, keeps the elderly person's head and face exposed. Caregivers can continuously observe the elderly person's expression, breathing, and cooperation, reducing tension or resistance caused by enclosed spaces, sudden transfers, and unfamiliar equipment. This improves the operability of community care and home-based bathing assistance.

[0037] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the foldable bath mattress of the present invention after it has been inflated and formed. Figure 3 This is a schematic diagram of the overall structure of the inner liner of the present invention after disassembly; Figure 4 This is a schematic diagram of the partitioned layout structure of the airbag layer of the present invention; Figure 5 This is an exploded view of the segmented support plate structure of the inflatable mattress body of the present invention; Figure 6 This is a schematic diagram of the internal cross-sectional structure of the mobile host of the present invention; Figure 7 This is a schematic diagram of the internal cross-sectional structure of the hair filter box of the present invention.

[0039] Numbering on the map: 1. Mobile host; 11. Water supply assembly; 111. Clean water tank; 112. Inlet water filter; 113. Electric water heater; 114. Pre-filter thermostat; 12. Sewage discharge assembly; 121. Sewage tank; 122. Hair filter box; 1221. Filter basket bracket; 1222. Hair filter basket; 13. Air inflation / deflation assembly; 131. First air inflation port; 132. Second air inflation port; 133. First air deflation return port; 134. Second air deflation return port; 14. Heating assembly; 141. Heating fan; 142. 1. Heating air box; 143. Oscillating fan head; 15. Control unit; 2. Foldable bath mattress; 21. Inflatable mattress body; 211. Inflatable fabric layer; 212. Segmented support plate; 2111. Peripheral air inlet pipe; 2112. Peripheral air outlet pipe; 22. Supporting airbag layer; 2211. Airbag inlet pipe; 2212. Airbag outlet pipe; 221. Side rib area; 222. Central support area; 223. Neck support area; 224. Foot area; 225. Headrest area; 23. Water catcher; 24. Inner lining. Detailed Implementation

[0040] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0042] Please refer to the appendix carefully. Figure 1-7 A bathing device suitable for community care of disabled and demented elderly people includes a mobile host 1 and a foldable bathing mattress 2 that is detachably connected to the mobile host 1.

[0043] The bottom of the mobile host 1 is equipped with universal locking wheels, and the side wall or back is equipped with a push handle for moving with the caregiver to the side of the elderly person's bed. The mobile host 1 is equipped with a water supply component 11, a sewage discharge component 12, an air inflation component 13, a warm air component 14 and a control unit 15.

[0044] The control unit 15 includes a control circuit board, a display operation panel, a pump drive module, a valve group drive module, and a sensor input module. The control unit 15 is electrically connected to the water supply pump, sewage pump, air pump, electric three-way valve, nozzle solenoid valve, air inflation valve group, air deflation valve group, warm air fan 141, and heating air box 142, and receives detection signals from temperature detectors, pressure detectors, and liquid level detectors.

[0045] The foldable bathing mattress 2 is used to be laid on the bed surface and forms a recessed bathing area for the elderly to lie on after inflation. It includes an inflatable mattress body 21, a supporting airbag layer 22 located in the lying area inside the inflatable mattress body 21, a water-collecting pocket 23 located on the outer side of the head end of the inflatable mattress body 21, and an inner lining pad 24 that can be detachably connected to the surface of the inflatable mattress body 21.

[0046] The foldable bath mattress 2 is provided with a mattress-side air passage connection part connected to the inflation / deflation assembly 13 and a sewage discharge interface connected to the sewage discharge assembly 12. The mattress-side air passage connection part includes at least an outer air inlet interface and an outer air deflation interface connected to the inflatable mattress body 21, as well as an airbag inlet interface and an airbag deflation interface connected to the supporting airbag layer 22.

[0047] The air mattress body 21 includes an air-filled fabric layer 211 and a segmented support plate 212 covered within the air-filled fabric layer 211. The segmented support plate 212 is formed by splicing together multiple sections of the bottom plate and the four side panels. The air-filled fabric layer 211 forms an internal air-filled cavity that is connected to the external air inlet and external air outlet.

[0048] Preferred options are shown in the appendix. Figure 1 and Figure 5 As shown, the segmented support plate 212 includes multiple base plates laid along the bottom of the air mattress body 21 and multiple surrounding plates arranged around the air mattress body 21. Folding gaps are reserved between adjacent base plates, between adjacent surrounding plates, and between base plates and surrounding plates. The folding gaps form bending avoidance areas between adjacent plates.

[0049] The inflatable fabric layer 211 covers the outside of the segmented support plate 212. After the internal inflation chamber is inflated, the inflatable fabric layer 211 expands and tensions and limits the segmented support plate 212, so that multiple bottom plates form a bottom support structure and multiple side panels flip up or stand up relative to the bottom plates to form a protective edge. The bottom support structure and the protective edge together form a recessed bathing area.

[0050] To further ensure the stability of the segmented support plate 212 during folding and inflation, in one embodiment, a flexible connecting strip is provided at the folding gap between the base plate and the surrounding plate. The flexible connecting strip is heat-pressed or sewn to the inflatable fabric layer 211, allowing the surrounding plate to fold up relative to the base plate along the folding gap when the internal inflation chamber is inflated. A limiting strap can also be provided between the side of the surrounding plate away from the base plate and the inflatable fabric layer 211. The limiting strap is used to limit the maximum angle after the surrounding plate folds up, so that the surrounding plate maintains its protective edge shape when inflated. The edges of the segmented support plate 212 can be rounded, coated with an adhesive layer, or have soft edge protection to reduce wear on the inflatable fabric layer 211 during folding and inflation.

[0051] In this embodiment, the peripheral air inlet pipe 2111 and peripheral air outlet pipe 2112 are connected to the internal inflation chamber of the inflatable fabric layer 211, used to control the overall shaping of the inflatable mattress body 21, the erection of the protective edges, and the deflation and retraction. The airbag inlet pipe 2211 and airbag deflation pipe 2212 are inserted into the inflatable mattress body 21 and connected to the supporting airbag layer 22, used to independently control the supporting pressure of the supporting airbag layer 22 under the elderly person's body. Thus, caregivers can first deploy the inflatable mattress body 21 with low pressure to form a recessed bathing area, and then adjust the firmness of the supporting airbag layer 22 according to the elderly person's physical condition, weight, skin pressure, and bathing posture.

[0052] To reduce the possibility of nurses misconnecting the air lines, the exposed ports of the peripheral air inlet pipe 2111, peripheral air outlet pipe 2112, airbag inlet pipe 2211, and airbag air outlet pipe 2212 can be distinguished by different colors and diameters, and correspond one-to-one with the first inflation port 131, the first deflation return port 133, the second inflation port 132, and the second deflation return port 134 on the exterior of the mobile host 1. This allows nurses to easily distinguish between the peripheral shaping air lines and the support adjustment air lines when quickly connecting the foldable bath mattress 2 and the mobile host 1 at the bedside, reducing the risk of reversing the inflation and deflation lines and improving the safety and convenience of using the equipment.

[0053] Furthermore, the foldable bathing mattress 2 has a relatively small overall thickness when not inflated, and the segmented support plate 212 can be folded or bent along with the inflatable fabric layer 211, making it easy for caregivers to gradually lay it onto the bed from the side of the elderly person's body. After inflation, the segmented support plate 212 forms a bottom support structure and a surrounding protective edge under the tension and limiting effect of the inflatable fabric layer 211, temporarily creating a recessed bathing area on a normal bed surface.

[0054] The aforementioned foldable bathing mattress 2 can form an open, recessed bathing area next to the bed, allowing the elderly to complete the process of laying, inflating, adjusting support, rinsing, draining, drying, and deflating the mattress while in or near their original sleeping position. This reduces the need for carrying, changing sitting or lying positions, and moving the elderly while they are wet, thus lowering the risk of bumps, slips, and skin abrasions, and also reducing the physical burden on caregivers.

[0055] For elderly people with dementia, the recessed bathing area adopts an open and flexible enclosure structure. The headrest area 225 and the water collection bag 23 keep the elderly's head and face exposed, making it easier for caregivers to observe the elderly's condition and reducing the resistance of elderly people with dementia to enclosed spaces and unfamiliar equipment. The foldable bathing mattress 2 is easy to roll up, transport and clean after deflation, making it more suitable for community home bathing assistance and home bedside care scenarios.

[0056] Preferred options are shown in the appendix. Figure 4 As shown, the air mattress body 21 and the supporting airbag layer 22 have independent air passages, and the air passage connection part on the side of the mattress body 21 is provided on the side wall of the air mattress body 21.

[0057] The mattress side air passage connection includes an exposed port of an outer air inlet pipe 2111, an outer air outlet pipe 2112, an airbag inlet pipe 2211, and an airbag outlet pipe 2212. The outer air inlet pipe 2111 and the outer air outlet pipe 2112 are connected to the internal inflation chamber of the inflatable fabric layer 211. The airbag inlet pipe 2211 and the airbag outlet pipe 2212 pass through the inflatable mattress body 21 and are connected to the supporting airbag layer 22.

[0058] Preferred options are shown in the appendix. Figure 4 and Figure 6 As shown, the inflation / deflation assembly 13 includes an inflation pump, an inflation valve group, and a deflation valve group located inside the mobile host 1, as well as a first inflation port 131, a second inflation port 132, a first deflation return port 133, and a second deflation return port 134 located outside the mobile host 1.

[0059] The first inflation port 131 and the second inflation port 132 are respectively connected to the inflation pump through the inflation valve group, and are respectively connected to the peripheral air inlet pipe 2111 and the airbag air inlet pipe 2211.

[0060] The first vent return port 133 and the second vent return port 134 are respectively connected to the air inlet end of the vent valve assembly, and are respectively connected to the peripheral vent pipe 2112 and the airbag vent pipe 2212. The exhaust end of the vent valve assembly is connected to the external environment of the mobile host 1.

[0061] In this embodiment, the inflation / deflation assembly 13 uses an inflation pump in conjunction with an inflation valve assembly and a deflation valve assembly to achieve separate control of the inflatable mattress body 21 and the supporting airbag layer 22. Specifically, the first inflation port 131 and the second inflation port 132 are respectively connected to the inflation pump through the inflation valve assembly, and are respectively connected to the peripheral air inlet pipe 2111 and the airbag air inlet pipe 2211, so that the internal inflation chamber of the inflatable mattress body 21 and the supporting airbag layer 22 can be inflated independently. The first deflation return port 133 and the second deflation return port 134 are respectively connected to the air inlet end of the deflation valve assembly, and are respectively connected to the peripheral deflation pipe 2112 and the airbag deflation pipe 2212. The exhaust end of the deflation valve assembly is connected to the external environment of the mobile host 1, so that the inflatable mattress body 21 and the supporting airbag layer 22 can be deflated separately. Therefore, the shaping and support functions of the inflatable mattress body 21 and the adjustment and support functions of the airbag layer 22 are independent of each other. Caregivers can first create a recessed bathing area with the inflatable mattress body 21, and then adjust the airbag layer 22 to provide flexible support for the elderly person's body. After bathing, the height of the protective edge formed by the inflatable mattress body 21 can be lowered first, and then the air pressure of the airbag layer 22 can be released, making it easier for the elderly person to adjust their body, remove the mattress, and fold it for storage. This structure eliminates the need for a separate external air pump interface for each airbag section, reducing the number of external pipes and the risk of misconnection, while still meeting the needs of mattress shaping, body support, and post-bath storage.

[0062] In a further embodiment, the first inflation port 131, the second inflation port 132, the first deflation return port 133, and the second deflation return port 134 can be separately configured or integrated into a single four-channel quick-connect air circuit. Pressure detection devices can also be installed in the air circuits corresponding to the first inflation port 131 and the second inflation port 132. The control unit 15 controls the opening and closing of the inflation pump, inflation valve group, and deflation valve group based on the detection signal from the pressure detection devices, ensuring that the air mattress body 21 and the supporting airbag layer 22 are maintained within preset pressure ranges. One-way valves and waterproof and breathable components can also be installed on the deflation paths corresponding to the first deflation return port 133 and the second deflation return port 134 to reduce the reverse entry of bathing water vapor or liquid into the mobile host 1 along the deflation path.

[0063] Preferred options are shown in the appendix. Figure 3 and Figure 4 As shown, the airbag layer 22 includes a lateral rib area 221 located in the recessed bathing area near the left and right sides of the elderly person's torso, a central support area 222 located between the two lateral rib areas 221 and extending along the spine to the lower leg, a neck brace area 223 located at the corresponding position of the neck, a foot area 224 located at the corresponding position of the feet, and a headrest area 225 provided on the head end surface of the air mattress body 21.

[0064] The airbag inlet pipe 2211 and the airbag deflation pipe 2212 branch out into multiple inlet pipes and multiple deflation pipes within the supporting airbag layer 22, respectively. The multiple inlet pipes and multiple deflation pipes are respectively connected to the side rib area 221, the central support area 222, the neck support area 223 and the foot area 224.

[0065] The headrest area 225 is located on the surface of the air mattress body 21 and is higher than other areas of the supporting airbag layer 22.

[0066] In one embodiment, the central support area 222 extends along the elderly person's spine to the lower leg, providing continuous and flexible support for the back, lumbosacral region, buttocks, thighs, and lower legs.

[0067] The two lateral rib areas 221 are located on the left and right sides of the elderly man's torso, respectively. After inflation, they can be higher than the adjacent area of ​​the central support area 222 to reduce the body's lateral slippage.

[0068] The neck support area 223 is used to improve the transition support between the head and neck and the shoulders and back, and the foot area 224 is used to limit the foot from sliding to the toes and reduce local pressure on the heel.

[0069] The airbag inlet tube 2211 and airbag deflation tube 2212 are connected to the lateral rib area 221, central support area 222, neck brace area 223, and foot area 224 through multiple branch tubes, respectively. Meanwhile, the headrest area 225 can be an independent inflatable headrest, a flexible foam pad, or a raised pad integrally formed with the inflatable mattress body 21, used to support the elderly's head and keep the head and face above the bottom of the recessed bathing area, making it easier for caregivers to observe the elderly's facial condition and perform head washing.

[0070] With the above settings, the supporting airbag layer 22 is no longer a single flat air cushion, but can form zoned support by combining with the body curves of the bedridden elderly. During the bathing process, it can simultaneously support the body, prevent lateral slippage, support the neck and feet, and relieve local pressure, which helps to reduce the discomfort caused by the elderly due to unstable posture, local pressure, or turning over for care.

[0071] Preferred options are shown in the appendix. Figure 6 As shown, the water supply assembly 11 includes a clean water tank 111, an inlet filter 112, a water supply pump, an electric water heater 113, a pre-heating chamber 114, an electrically controlled three-way valve, and a temperature detector.

[0072] A handheld showerhead is mounted on the outer wall of the mobile host 1. The water outlet pipe of the electric water heater 113 is connected to the handheld showerhead pipe and the pre-heating tank 114 through an electrically controlled three-way valve. The pre-heating tank 114 is connected to the clean water tank 111 through a return pipe. The control unit 15 controls the switching of the electrically controlled three-way valve according to the detection signal of the temperature detector set at the water inlet end of the pre-heating tank 114, so that the initial cold water or water that has not reached the set temperature discharged by the electric water heater 113 enters the pre-heating tank 114 and returns to the clean water tank 111.

[0073] In one embodiment, the electric water heater 113 is an instantaneous small water heater, specifically any one of the Skyworth D885, Skyworth D886, or Skyworth D898 models. Alternatively, a small water heater with similar installation size, heating power, and water output capacity can be used. A temperature detector is installed inside the pre-heating tank 114. The temperature detector is preferably a waterproof NTC 10K temperature probe or a DS18B20 packaged temperature probe. The temperature detector is located at the inlet end of the pre-heating tank 114 and is situated in the detection area at the front end of the dripping water flow after the water from the electric water heater 113 enters the pre-heating tank 114. This allows the probe end of the temperature detector to preferentially contact the water output from the electric water heater 113 that has just entered the pre-heating tank 114, rather than detecting the average temperature of the mixed water at the bottom of the pre-heating tank 114. Therefore, the control unit 15 can more timely and accurately determine whether the current output water temperature of the electric water heater 113 has reached the set bathing temperature range, and control the switching of the electronically controlled three-way valve accordingly. This allows the initial cold water or water that has not reached the set temperature to first enter the pre-heating tank 114 and then return to the clean water tank 111 through the return pipe. Once the output water temperature reaches the set range, the control unit switches to the handheld shower head pipe. This reduces the direct contact between cold water or water with temperature fluctuations and the elderly person's skin, thereby reducing the risk of fright, resistance, or discomfort caused by water temperature stimulation in disabled or cognitively impaired elderly people and improving the safety and comfort of the bedside bathing process.

[0074] Preferred options are shown in the appendix. Figure 2 , Figure 3 and Figure 4 As shown, the air mattress body 21 has a drainage hole in the area near the foot area 224. The lower end of the drainage hole is fixedly connected to a first drainage corrugated pipe, which extends to the outside of the air mattress body 21.

[0075] The water collection pocket 23 is fixed to the side of the air mattress body 21 near the headrest area 225. The water collection pocket 23 includes a semi-circular support ring and a waterproof pocket body covering the outside of the semi-circular support ring. A second drainage corrugated pipe is provided at the bottom of the waterproof pocket body.

[0076] With the above structure, the first drainage corrugated pipe extends to the outside of the air mattress body 21 and communicates with the sewage discharge component 12, so that sewage in the recessed bathing area can be discharged in a timely manner; the second drainage corrugated pipe is used to guide the head washing sewage collected in the water receiving pocket 23 into the sewage discharge component 12. A removable filter cover can be installed at the drainage through hole, and a heat-pressed sealing ring or a flexible sealing pressure ring can be installed around the drainage through hole. The first drainage corrugated pipe and the drainage through hole are sealed and connected by a crimping ring, threaded joint or snap-fit ​​joint to reduce leakage at the drainage through hole.

[0077] The water collection pocket 23 is fixed to the side of the air mattress body 21 near the headrest area 225. The semi-circular support ring can be made of elastic plastic strip, elastic TPU strip, or elastic metal strip covered with soft rubber. The waterproof pocket body can be made of TPU waterproof cloth, PVC mesh cloth, silicone coated cloth, or flexible medical waterproof membrane. The second drainage corrugated pipe is used to guide the head washing wastewater collected in the water collection pocket 23 into the sewage discharge component 12. Based on the above components, body bathing wastewater and head washing wastewater can be collected separately and discharged into the sewage discharge component 12 in a unified manner, which facilitates the completion of full body and head washing at the bedside and helps to keep the environment around the bed dry.

[0078] Preferred options are shown in the appendix. Figure 6 and Figure 7 As shown, the sewage discharge assembly 12 includes a sewage discharge three-way valve, a hair filter box 122, a sewage pump, and a sewage tank 121.

[0079] The two inlet ends of the drain valve are connected to the first drain bellows and the second drain bellows, respectively.

[0080] The hair filter box 122 is located between the drain three-way valve and the drain pump. The hair filter box 122 contains a filter basket bracket 1221 and a detachable hair filter basket 1222 mounted in the filter basket bracket 1221.

[0081] With the above structure, the bathing wastewater generated in the recessed bathing area and the head washing wastewater collected by the water receiving bag 23 can enter the drain three-way valve through the first drain corrugated pipe and the second drain corrugated pipe respectively, and then enter the hair filter box 122 after being collected at the drain three-way valve.

[0082] The detachable hair filter basket 1222 is used to intercept hair, dander, and cleaning residue before sewage enters the sewage pump, thereby reducing the risk of sewage pump blockage and facilitating quick disassembly and cleaning by caregivers after bathing. The filtered sewage is pumped to the sewage tank 121 or an external drainage pipe. A final drain outlet is installed on the sewage tank 121. When there are available drainage facilities such as floor drains, toilets, or sewage buckets, sewage can be directly discharged through the final drainage corrugated pipe. When external discharge is inconvenient, sewage can be temporarily stored in the sewage tank 121. Thus, sewage generated during bedside bathing can be collected and discharged promptly, reducing water accumulation in the recessed bathing area, preventing contamination of the bed surface and surrounding environment, and reducing the difficulty of subsequent cleaning.

[0083] In one embodiment, a liquid level detection device can be installed in the sewage tank 121. The control unit 15 prompts the nursing staff to empty the sewage tank 121 or switch to external discharge mode based on the detection signal of the liquid level detection device. A check structure can be installed on the outlet side of the sewage pump or the inlet side of the sewage three-way valve to reduce sewage backflow.

[0084] Preferred options are shown in the appendix. Figure 6 As shown, the heating air assembly 14 includes a heating air fan 141 and a heating air box 142 located inside the mobile host 1, and an oscillating fan head 143 located outside the mobile host 1. The heating air box 142 is connected to the air outlet side of the heating air fan 141, and the oscillating fan head 143 is connected to the heating air box 142 through a heating air output hose.

[0085] The swing head 143 is connected to a bidirectional drive mechanism, which is used to drive the swing head 143 to swing horizontally and pitch vertically.

[0086] With the above structure, in winter or home care environments with low room temperature, the warm air component 14 can preheat the bedside space, recessed bathing area, and mattress surface before the elderly person undresses and takes a formal shower, reducing discomfort when the elderly person comes into contact with cold air and a cold mattress. During the shower, the heating fan box 142 reduces heat loss by using a low airflow and a bidirectional drive mechanism to oscillate the oscillating fan head 143. After the shower, it can help dry the elderly person's body and mattress surface, reducing the risk of catching a cold after showering and reducing the intensity of repeated drying operations for caregivers. At the same time, this oscillation method makes the warm air coverage more even, avoiding the warm air being concentrated on a single area of ​​the elderly person's body for a long time.

[0087] Preferred options are shown in the appendix. Figure 2 and Figure 3 As shown, the surface of the inflatable mattress body 21 is provided with fasteners along the periphery of the recessed bathing area. The inner liner 24 is detachably connected to the surface of the inflatable mattress body 21 through the fasteners and covers the recessed bathing area. The inner liner 24 is provided with a drainage avoidance opening at the corresponding drainage hole.

[0088] With the above structure, fasteners are provided along the perimeter of the recessed bathing area, so that the inner liner 24 can stably cover the recessed bathing area and is not easily displaced, wrinkled or rolled up during the bathing process due to water flow, slight turning of the elderly or washing actions of caregivers. The inner liner 24 can be made of skin-friendly and waterproof composite material to reduce discomfort caused by direct contact between the elderly's skin and the air mattress body 21, and is easy to disassemble, replace, clean or disinfect after a single use.

[0089] The specific operating procedure of this invention is as follows: In use, caregivers can push the mobile host 1 to the side of the elderly person's bed when the water tank 111 is empty or at a low water level to reduce the weight of pushing. After the mobile host 1 is in place, its external interface area is oriented toward the predetermined placement position of the foldable bath mattress 2, and the universal locking wheels are locked.

[0090] After the mobile host 1 is positioned, the nursing staff replenishes water to the clean water tank 111 according to the on-site conditions. The clean water tank 111 can be connected to a faucet or shower head interface via an external water supply hose, or it can be manually replenished through the clean water inlet. The clean water tank 111 can be equipped with a water level observation window, capacity scale, and maximum water level line. Its capacity is preferably 6L to 12L, and the timely replenishment of water during use reduces the weight of pushing the tank when it is full.

[0091] The sewage discharge method is selected based on site conditions: if site conditions permit sewage discharge, the caregiver will extend the final drainage corrugated pipe to the floor drain, toilet, or sewage tank, allowing the sewage to be directly discharged by the sewage pump; if site conditions do not permit discharge, the sewage will be temporarily collected by the sewage tank 121. The sewage tank 121 is preferably used as a temporary storage or buffer container with a capacity of 5L to 10L.

[0092] Subsequently, the caregiver unfolds the deflated foldable bath mattress 2, aligning its head end with the elderly person's head and neck, and its foot end with the elderly person's feet, with the tubing collection area facing the mobile unit 1. For elderly people who can cooperate slightly when turning over, the mattress can be placed under their body by slightly turning them to the left or right; for severely disabled elderly people who cannot actively cooperate, the deflated foldable bath mattress 2 can be gradually placed under their body using a transfer cloth, sheet, or mattress edge traction straps to reduce the need for carrying them.

[0093] After the foldable bathing mattress 2 is laid in place, the caregiver adjusts the elderly person's body position so that the head, neck, torso, lumbosacral region, lower limbs and feet correspond to the headrest area 225, neck support area 223, side rib area 221, central support area 222 and foot area 224 respectively. The water catcher 23 is located on the outer side of the head end of the inflatable mattress body 21 and is used to catch water when washing the head.

[0094] After the mattress is positioned, the caregiver connects the external air inlet, external air outlet, airbag inlet, and airbag deflation inlet to the first inflation port 131, the first deflation return port 133, the second inflation port 132, and the second deflation return port 134, respectively. At the same time, the first and second drainage corrugated pipes are connected to the sewage discharge assembly 12, so that sewage from the recessed bathing area and sewage from head washing can enter the sewage discharge pipes in the mobile host 1.

[0095] After the piping is connected, the caregiver starts the mattress forming process through the control unit 15. The control unit 15 first controls the air pump to work in a low output state and opens the air valve corresponding to the first air port 131, allowing air to enter the internal air chamber of the air mattress body 21; the air volume in this pre-forming stage is controlled at 20%-40% of the rated air volume, so that the foldable bath mattress 2 slowly flattens under the elderly person's body, avoiding sudden inflation that could cause the elderly person's body to be pushed or subjected to local pressure.

[0096] After the pre-forming stage is completed, the control body 15 stops inflation or closes the corresponding inflation valve. The caregiver confirms and fine-tunes the position of the elderly person's body and the mattress under low pressure. After confirming that the position is correct, the control body 15 enters the outer forming stage and continues to replenish air into the inner inflation chamber, causing the inflatable fabric layer 211 to expand and tension the segmented support plate 212. This causes multiple base plates to form a bottom support structure, and multiple side plates to flip up or stand up to form a protective edge. Together, they form a recessed bathing area support structure and a protective edge that together form a recessed bathing area.

[0097] During the outer molding stage, the control body 15 detects the pressure of the internal inflation chamber through the pressure detection device in the air path of the first inflation port 131, and controls the start and stop of the inflation pump and inflation valve group according to the pressure detection value. The molding pressure of the internal inflation chamber can be set to 8kPa-18kPa, so that the enclosure edge can remain upright without forming an excessively hard feel; when the pressure is lower than the allowable lower limit, the control body 15 performs short-term air replenishment.

[0098] After the air mattress body 21 is formed, the control body 15 opens the inflation valve corresponding to the second inflation port 132, allowing gas to enter the support airbag layer 22. The support airbag layer 22 first performs basic support inflation, so that the central support area 222, the neck support area 223 and the foot area 224 form low-pressure flexible support; then the side rib areas 221 on both sides are gradually inflated to form flexible restraint on the left and right sides of the elderly's torso, so as to prevent the side rib areas 221 from bulging too early and compressing the elderly's torso.

[0099] During the inflation of the supporting airbag layer 22, the control unit 15 detects the air pressure through the pressure detection device in the air path of the second inflation port 132 and controls the working pressure of the supporting airbag layer 22 between 4 kPa and 12 kPa. For elderly people with lighter weight or a higher risk of pressure sores, a lower pressure can be used; for elderly people with heavier weight or who are prone to slipping during bathing, the supporting pressure can be appropriately increased. The pressure in the lateral rib areas 221 can be slightly higher than that in the central supporting area 222, but it should not compress the elderly person's ribs, upper arms, and armpits.

[0100] In one embodiment, the airbag layer 22 may be equipped with a partitioned branch valve, an air distribution valve, or a flow-limiting branch, so that the side rib area 221, the central support area 222, the neck support area 223, and the foot area 224 can be inflated or deflated in a partitioned manner or with differential pressure adjustment based on the same airbag inlet pipe 2211 and airbag deflation pipe 2212, thereby improving the partitioned support effect without increasing the number of external interfaces of the mobile host 1.

[0101] After inflation, caregivers observe the formation of the recessed bathing area and the elderly person's posture. The control unit 15 can adjust the inflation mattress 21 or the supporting airbag layer 22 by adding or deflating air as needed. After the recessed bathing area and the flexible supporting surface are stable, the warm air preheating and water flushing steps are started.

[0102] In winter, caregivers can activate the heating unit 14 to preheat the bedside area according to the room temperature, and direct the oscillating fan head 143 towards the upper part of the recessed bathing area or the sides of the elderly person's torso. During the bathing process, the oscillating fan head 143 avoids the elderly person's face and the area to be directly rinsed, and directs the air towards the sides of the body or the foot area to reduce heat loss from the body surface.

[0103] Subsequently, the caregiver activates the water supply assembly 11. The clean water in the clean water tank 111, after being filtered by the inlet filter 112, is pumped into the electric water heater 113 for heating. Initially, the cold water or water not reaching the set temperature discharged from the electric water heater 113 during startup first enters the pre-heating chamber 114 via an electrically controlled three-way valve. When the temperature detector detects that the water temperature has reached the set range, the control unit 15 controls the electrically controlled three-way valve to switch to the handheld shower head pipeline and allows the shower head solenoid valve to open, enabling the handheld shower head to output warm water within the set temperature range, thus reducing the stimulation caused by cold water or water temperature fluctuations to the elderly.

[0104] When nursing staff bathe, they can first pre-wet areas such as arms, calves, or shoulders and back using a low flow rate, and then wash in sections according to areas such as head, torso, back and buttocks, perineum, lower limbs, and feet. The water used for head washing is discharged through the water collection pocket 23 and the second drainage corrugated pipe, while the wastewater used for body washing enters the sewage discharge assembly 12 through the recessed bathing area, the drainage hole, and the first drainage corrugated pipe.

[0105] During the bathing process, if it is necessary to clean the elderly person's back, buttocks, or perineum, the caregiver can adjust the supporting airbag layer 22 in sections using the control unit 15. Under normal conditions, the central supporting area 222 maintains basic supporting pressure, while the lateral rib areas 221 on both sides maintain a support height slightly higher than the central supporting area 222 to reduce lateral slippage of the elderly person's body. When cleaning one side of the back or buttocks, the adjacent supporting parts of the corresponding lateral rib area 221 and the central supporting area 222 can be appropriately raised, while the other lateral rib area 221 is kept at low pressure or appropriately deflated, allowing the elderly person's body to form a small lateral tilt of 10°–25° under the caregiver's support, thereby exposing the area to be cleaned. When cleaning the buttock crease, perineum, or groin area, the lateral rib areas 221 on both sides can be moderately inflated, and the supporting pressure under the corresponding buttocks in the central supporting area 222 can be reduced to facilitate low-flow local rinsing and wiping. After local cleaning is completed, the control unit 15 controls the supporting airbag layer 22 to return to the normal bathing state.

[0106] The sewage discharge assembly 12 can operate continuously during bathing or intermittently depending on the water level in the recessed bathing area. Sewage in the recessed bathing area and sewage in the water collection bag 23 enter the sewage discharge three-way valve through the first and second drainage corrugated pipes, respectively, and then enter the hair filter box 122. The filtered sewage is then pumped to the sewage tank 121 by the sewage pump, or discharged to the bathroom floor drain, toilet, or sewage bucket through the final drainage corrugated pipe. If the sewage tank 121 reaches the preset level, the caregiver can stop the water supply and empty the sewage tank 121 or switch to external discharge mode through the operation interface on the mobile host 1. If the water level in the clean water tank 111 is insufficient, water can be added in time.

[0107] After the bath, the caregiver turns off the handheld shower head and continues to run the sewage pump for a period of time to drain the residual sewage in the recessed bathing area and the water collection bag 23; then the drying mode of the warm air component 14 is activated, and the elderly person's body and mattress surface are wiped with an absorbent towel.

[0108] After drying is complete, the caregiver initiates the deflation procedure. The control unit 15 first releases the gas in the inflation chamber inside the air mattress body 21 through the deflation valve corresponding to the first deflation return port 133, lowering the perimeter. Then, it releases the gas in the supporting airbag layer 22 through the deflation valve corresponding to the second deflation return port 134, restoring the supporting airbag layer 22 to its thin state. Depending on the care needs, the perimeter height can also be lowered first while maintaining partial pressure on the supporting airbag layer 22, and then the entire mattress can be deflated after the elderly person has dried, dressed, or had their sheets tidied.

[0109] After deflation, the caregiver releases the fasteners between the inner liner 24 and the inflatable mattress body 21, removes and replaces or washes the inner liner 24, and pulls the foldable bath mattress 2 out from under the elderly person's body and rolls it up. After each use, the caregiver cleans the wastewater tank 121, the final drainage corrugated pipe, the wastewater discharge assembly 12, and the foldable bath mattress 2.

[0110] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A bathing device suitable for community care of disabled and demented elderly people, characterized in that: Includes a mobile host (1) and a foldable bath mattress (2) detachably connected to the mobile host (1); The bottom of the mobile host (1) is equipped with universal locking wheels, and its side wall or back is equipped with a push handle for moving with the caregiver to the side of the elderly bed. The mobile host (1) is equipped with a water supply component (11), a sewage discharge component (12), an air inflation component (13), a warm air component (14), and a control body (15). The foldable bathing mattress (2) is used to be laid on the bed surface and forms a recessed bathing area for the elderly to lie down after inflation. It includes an inflatable mattress body (21), a supporting airbag layer (22) located in the lying area inside the inflatable mattress body (21), a water-collecting pocket (23) located on the outer side of the head end of the inflatable mattress body (21), and an inner lining pad (24) that can be detachably connected to the surface of the inflatable mattress body (21). The foldable bath mattress (2) is provided with a mattress-side air passage connection part connected to the inflation and deflation assembly (13) and a sewage discharge interface connected to the sewage discharge assembly (12). The mattress-side air passage connection part includes at least an outer air inlet interface and an outer air outlet interface connected to the inflatable mattress body (21), and an air bag inlet interface and an air bag deflation interface connected to the supporting air bag layer (22). The inflatable mattress body (21) includes an inflatable fabric layer (211) and a segmented support plate (212) covering the inflatable fabric layer (211). The segmented support plate (212) is formed by splicing multiple sections of the bottom plate and the four side panels. The inflatable fabric layer (211) forms an internal inflation cavity that is connected to the outer air inlet and outer air outlet.

2. A bathing device suitable for community care of disabled and demented elderly people according to claim 1, characterized in that: The segmented support plate (212) includes multiple bottom plates laid along the bottom of the air mattress body (21) and multiple surrounding plates arranged around the air mattress body (21). Folding gaps are reserved between adjacent bottom plates, between adjacent surrounding plates, and between bottom plates and surrounding plates. The folding gaps form a bending avoidance area between adjacent plates. The inflatable fabric layer (211) covers the outside of the segmented support plate (212). After the internal inflation chamber is inflated, the inflatable fabric layer (211) expands and tensions and limits the segmented support plate (212), so that multiple bottom plates form a bottom support structure, and multiple side panels flip up or stand up relative to the bottom plates to form a protective edge. The bottom support structure and the protective edge together form the recessed bathing area.

3. A bathing device suitable for community care of disabled and demented elderly people according to claim 2, characterized in that: The inflatable mattress body (21) and the supporting airbag layer (22) have independent air passages, and the mattress side air passage connection part is provided on the side wall of the inflatable mattress body (21). The mattress side air passage connection includes the exposed openings of the peripheral air inlet pipe (2111), peripheral air outlet pipe (2112), airbag inlet pipe (2211), and airbag air outlet pipe (2212). The peripheral air inlet pipe (2111) and peripheral air outlet pipe (2112) are connected to the internal inflation chamber of the inflatable fabric layer (211). The airbag inlet pipe (2211) and airbag air outlet pipe (2212) are inserted into the inflatable mattress body (21) and are connected to the supporting airbag layer (22).

4. A bathing device suitable for community care of disabled and demented elderly people according to claim 3, characterized in that: The inflation / deflation assembly (13) includes an inflation pump, an inflation valve group and an deflation valve group located inside the mobile host (1), and a first inflation port (131), a second inflation port (132), a first deflation return port (133) and a second deflation return port (134) located outside the mobile host (1). The first inflation port (131) and the second inflation port (132) are respectively connected to the inflation pump through the inflation valve group, and are respectively connected to the peripheral air inlet pipe (2111) and the airbag air inlet pipe (2211). The first vent return port (133) and the second vent return port (134) are respectively connected to the air inlet end of the vent valve group, and respectively connected to the peripheral vent pipe (2112) and the airbag vent pipe (2212). The exhaust end of the vent valve group is connected to the external environment of the mobile host (1).

5. A bathing device suitable for community care of disabled and demented elderly people according to claim 3, characterized in that: The airbag layer (22) includes a lateral rib area (221) located in the recessed bathing area near the left and right sides of the elderly torso, a central support area (222) located between the two lateral rib areas (221) and extending along the spine to the lower leg, a neck support area (223) located at the corresponding position of the neck, a foot end area (224) located at the corresponding position of the feet, and a headrest area (225) provided on the head end surface of the air mattress body (21). The airbag inlet pipe (2211) and airbag deflation pipe (2212) branch out into multiple inlet pipes and multiple deflation pipes within the supporting airbag layer (22), respectively. The multiple inlet pipes and multiple deflation pipes are respectively connected to the side rib area (221), the central support area (222), the neck brace area (223), and the foot area (224). The headrest area (225) is located on the surface of the air mattress body (21) and above other areas of the supporting airbag layer (22).

6. A bathing device suitable for community care of disabled and demented elderly people according to claim 1, characterized in that: The water supply assembly (11) includes a clean water tank (111), an inlet filter (112), a water supply pump, an electric water heater (113), a pre-heating chamber (114), an electrically controlled three-way valve, and a temperature detector; The mobile host (1) is equipped with a handheld shower head on its outer wall. The water outlet pipe of the electric water heater (113) is connected to the handheld shower head pipe and the pre-heating tank (114) through an electrically controlled three-way valve. The pre-heating tank (114) is connected to the clean water tank (111) through a return pipe. The control unit (15) controls the electrically controlled three-way valve to switch according to the detection signal of the temperature detector set at the water inlet end of the pre-heating tank (114), so that the initial cold water or water that has not reached the set temperature discharged by the electric water heater (113) enters the pre-heating tank (114) and flows back to the clean water tank (111).

7. A bathing device suitable for community care of disabled and demented elderly people according to claim 5, characterized in that: The air mattress body (21) has a drainage hole in the area near the foot area (224), and the lower end of the drainage hole is fixedly connected to a first drainage corrugated pipe, which extends to the outside of the air mattress body (21). The water-collecting pocket (23) is fixed to the side of the air mattress body (21) near the headrest area (225). The water-collecting pocket (23) includes a semi-circular support ring and a waterproof pocket body covering the outside of the semi-circular support ring. The bottom of the waterproof pocket body is provided with a second drainage corrugated pipe.

8. A bathing device suitable for community care of disabled and demented elderly people according to claim 7, characterized in that: The sewage discharge assembly (12) includes a sewage discharge three-way valve, a hair filter box (122), a sewage pump, and a sewage tank (121). The two inlet ends of the drain valve are respectively connected to the first drain bellows and the second drain bellows. The hair filter box (122) is located between the drain three-way valve and the drain pump. The hair filter box (122) is fixed with a filter basket bracket (1221) and a detachable hair filter basket (1222) mounted in the filter basket bracket (1221).

9. A bathing device suitable for community care of disabled and demented elderly people according to claim 1, characterized in that: The warm air assembly (14) includes a warm air fan (141) and a heating air box (142) located inside the mobile host (1), and an oscillating fan head (143) located outside the mobile host (1). The heating air box (142) is connected to the air outlet side of the warm air fan (141), and the oscillating fan head (143) is connected to the heating air box (142) through a warm air output hose. The swing head (143) is connected to a bidirectional drive mechanism, which is used to drive the swing head (143) to swing horizontally and pitch vertically.

10. A bathing device suitable for community care of disabled and demented elderly people according to claim 7, characterized in that: The surface of the inflatable mattress body (21) is provided with fasteners along the periphery of the recessed bathing area. The inner liner (24) is detachably connected to the surface of the inflatable mattress body (21) through the fasteners and covers the recessed bathing area. The inner liner (24) is provided with a drainage avoidance port at the corresponding drainage through hole.

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