CN113143628B

CN113143628B - Bed and chair integrated device for assisting old people with inconvenient legs and feet to care and use method

Info

Publication number: CN113143628B
Application number: CN202110230320.6A
Authority: CN
Inventors: 罗文�; 何朝通; 华志康; 屠晨昊; 劳陈均; 杨赞
Original assignee: China Jiliang University
Current assignee: China Jiliang University
Priority date: 2020-11-09
Filing date: 2021-03-02
Publication date: 2023-05-09
Anticipated expiration: 2041-03-02
Also published as: CN216168393U; CN113143629B; CN113143627A; CN216148384U; CN113143628A; CN113143629A; CN216628950U

Abstract

The invention provides a bed and chair integrated device for assisting in full self-care of old people with inconvenient legs and feet, which comprises a bed frame, a base, a bed lifting connecting piece, a short electric push rod, a bed lifting connecting piece, a first long electric push rod, a bed lifting second connecting piece, a leg bending and stretching piece, a foot supporting plate, a second long electric push rod, a back lifting connecting piece and a wheelchair, wherein the bed lifting connecting piece is arranged on the bed frame; the invention also provides a using method of the bed-chair integrated device for assisting the old with inconvenient legs and feet to fully care, which is mainly applied to families and hospitals and can be used for caring the old with inconvenient actions and patients. The labor required to care for them can be reduced while improving their life. The device can help the patient to do activities such as back lifting, leg bending and leg stretching and the like to prevent bedsores, can also reduce the times of the patient getting out of the bed, is convenient for cleaning, lightens nursing intensity, and can also enable the patient to move within a certain range.

Description

Bed and chair integrated device for assisting old people with inconvenient legs and feet to care and use method

Technical Field

The invention relates to a nursing tool, in particular to a bed and chair integrated device for assisting the nursing of old people with inconvenient legs and feet and a use method.

Background

The self-care bed is a nursing product invented by handicapped people for facilitating the care, and the mechanical function of the self-care bed is basically well studied in related enterprises and research institutions in China at present and is not weaker than countries such as Europe and America. Lacking are intelligent control technologies, man-machine interaction and sensor fusion technologies, the lack of these key technologies results in highly intelligent self-care bed technologies being known only in developed countries. The high-intelligent self-care bed on the domestic market is difficult to find out and trace or the price makes most of needed families difficult to bear, so that the self-care bed is very important for patients and families, the nursing capability is enhanced, the family and social burden is lightened, and the patients are helped to return to society early. The intelligent self-care bed can intelligently assist the patient to turn over, lift the back, bend and stretch the legs and other activities to prevent bedsores, can intelligently assist the patient to relieve the bowels, is convenient to clean, lightens the nursing intensity, can also enable a nursing person to complete the daily nursing work such as lifting, outdoor rehabilitation, conversion of sickbeds between departments, cleaning, convenience and the like under the condition that the nursing person does not need to be in contact with the body of the nursing person, greatly lightens the labor intensity of the nursing person, and improves the working efficiency. Meanwhile, the psychological burden of the cared staff is lightened, and the comfort of the cared staff is improved.

Technically, the current research and development of China focuses more on the design based on Chinese ergonomics, and foreign companies develop self-care bed products in aspects of technology, intelligence and the like. In addition, high-end intelligent self-care beds are only developed in mass production by enterprises in a few developed countries, such as Stryker Medical company in the United states, arjohuntleigh company in Getinge AB group in Sweden, paramountbed company in Japan, and the like. Most of the high-intelligent self-care beds in China still stay in a laboratory stage at present, such as a bed-chair integrated service robot of Beijing aviation aerospace university, a multifunctional rehabilitation self-care bed robot of Shanghai university and the like. Several representative intelligent self-care beds and technical parameters are described below.

(1) InTouch self-care bed: the stroker Medical company in the united states develops an InTouch self-care bed, has functions of lifting a back of a patient, lifting a safety barrier and the like of a common self-care bed, is uniquely integrated with a clinical phrase of 24 languages which can be played, is convenient for diagnosing and treating patients in various countries, can record weight change diagrams of up to 50 patients, and can adjust a nursing plan according to the weight change diagrams, so that the nursing bed is helpful for the patients to the greatest extent. The self-care bed can also customize automatic cleaning and timed turning over to change the position of a patient, and the built-in pressure sore evaluation Scale Braden Scale is convenient for doctors and nursing staff to know the condition of the patient and customize different rehabilitation plans. Can play music and natural wonderful sound, and relieve the pressure of patients. Data synchronization can be achieved using an inouch self-care bed in an ICU ward.

(2) Totalcar eP500 self-supporting bed: the Hill-rom company in the United states developed a Totalcare 500 self-care bed that structurally supported functions of lying down, lifting back, standing, etc., which integrated the microminate system developed by the company. The digital part of the functions of the self-care bed comprise the functions of recording and storing information of a plurality of patients, detecting the pressure, temperature, friction and other information of four areas of the bed surface, intelligently drying and radiating the high-risk area where bedsores occur based on the weight of the patients as a reference, reducing the possibility of bedsores, and supporting the emergency rescue functions of one-key conversion and reset of the hand-free CPR and 20-degree Telenb lying position, one-key alarm and the like of the self-care bed, so that the life safety of a user is ensured.

(3) Enterprise9000 self-care bed: the company ArjoHuntleigh, sweden developed an Enterprise9000 self-care bed which had very convenient self-cleaning, degerming capabilities. All components of the self-protection bed are designed in a modularized mode, and can be detached and replaced, so that the self-protection bed is convenient to maintain. The body protecting bed can accurately measure the weight of a recorder, the error is within 500g, the maximum bearing weight is 250kg, and the functions of adjusting the height, tilting, lifting back, bending knee, lifting legs and the like of the bed surface can be electrically adjusted. And these varying angle values can be displayed in digital form on the control panel. In addition, considering the possibility of emergency, the self-care bed supports automatic CPR and manual CPR on two sides, and the evaporative cleaning and sterilizing system is arranged on the self-care bed, so that the self-care bed can be kept clean, the nursing intensity of nursing staff is reduced by improving Shu Du of patients.

(4) QualitasGamma self-care bed: the Japanese Paramoutbed company develops a QualitasGamma self-care bed, is designed on the basis of safety, initiative, high efficiency and high quality, realizes back lifting, leg lifting, height adjustment and Telender lying position transformation on the mechanical function, has two control modes of patient control and nursing staff control, and is convenient to operate. Moreover, the keys are designed to be prevented from being pressed by mistake according to the theory of human engineering, so that the safety of users is ensured. Special materials are selected for processing in the manufacturing process, and the X-ray compatible material can be used for X-ray compatibility. The foot bed tail plate of the self-care bed can be automatically adjusted by sensing the position of the feet of a patient, and in addition, the self-care bed is provided with an oxygen inhaler, CPR and infusion support interfaces and a rack for muscle traction, so that the life safety of the patient is ensured as much as possible and the rehabilitation effect is improved.

(5) Roboticbed self-care bed: the Japanese Panasonic company developed a Roboticbed, which according to the design of human engineering, allows the bed body to drive the user to sit up and open the bed frame like a wheelchair, and also expands the activity space of the patient for preventing bedsores, and meanwhile, the self-care bed also comprises an advanced home appliance controller and screen and a third-party video monitoring device, so that the working intensity of the care personnel is greatly reduced.

(6) Multifunctional rehabilitation self-care bed robot: the rehabilitation engineering and technical research institute of Shanghai university cooperates with enterprises in 2013 to design a multifunctional rehabilitation self-care bed robot, the self-care bed has the functions of wheelchair type self-care bed body separation and butt joint, and the wheelchair type bed main body has the nursing functions of standing, turning over, relieving bowels and the like, and can perform household barrier-free environmental control.

Accordingly, improvements in the art are needed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a high-efficiency bed-chair integrated device for assisting the aged with inconvenient legs and feet to fully care.

In order to solve the technical problems, the invention provides a bed and chair integrated device for assisting the nursing of old people with inconvenient legs and feet, which comprises a bed frame, a base, a bed lifting connecting piece, a short electric push rod, a bed lifting connecting piece, a first long electric push rod, a bed lifting second connecting piece, a leg bending and stretching piece, a foot supporting plate, a second long electric push rod, a back lifting connecting piece and a wheelchair;

the lower surface of the bed frame is provided with a first bed frame fixing bracket, a second bed frame fixing bracket, a third bed frame fixing bracket and a fourth bed frame fixing bracket in sequence from the head end to the tail end; the lower surface of the bedstead is also provided with a bedstead fifth fixing bracket which is positioned at one side of the bedstead near the tail end;

Four rollers are arranged at the bottom of the base, and a first base fixing bracket and a second base fixing bracket which are vertically upwards arranged are sequentially arranged on the upper surface of the base from the head end to the tail end;

the bed body bed lifting connecting piece comprises a bed body bed lifting connecting piece first connecting rod, a bed body bed lifting connecting piece second connecting rod and a bed body bed lifting connecting piece folding rod, the tail end of the bed body bed lifting connecting piece first connecting rod is fixedly connected with the middle position of the bed body bed lifting connecting piece second connecting rod, the tail end of the bed body bed lifting connecting piece first connecting rod is vertical to the middle position of the bed body bed lifting connecting piece second connecting rod, and the two ends of the bed body bed lifting connecting piece second connecting rod are fixedly connected with the head end of the bed body bed lifting connecting piece folding rod;

the bed body lifting connecting piece comprises a bed body lifting connecting piece rotating shaft, a bed body lifting connecting piece connecting rod and a bed body lifting connecting piece folding rod, wherein the bed body lifting connecting piece rotating shaft is fixedly connected with the bed body lifting connecting piece connecting rod and is mutually vertical to the bed body lifting connecting piece connecting rod, and the folding point of the bed body lifting connecting piece folding rod is fixedly connected with the bed body lifting connecting piece rotating shaft;

the bed body lifting second connecting piece comprises a bed body lifting second connecting piece rotating shaft and a bed body lifting second connecting piece folding rod, and the folding point of the bed body lifting second connecting piece folding rod is fixedly connected with the bed body lifting second connecting piece rotating shaft;

The leg flexor comprises a leg flexor rotating shaft, a leg flexor connecting plate and a leg flexor connecting rod, the head end of the leg flexor connecting plate is fixedly connected with the leg flexor rotating shaft and is mutually perpendicular, and the leg flexor connecting rod is fixedly connected with the leg flexor rotating shaft and is mutually perpendicular;

the foot support plate is sequentially provided with a first connecting rod of the foot support plate and a second connecting rod of the foot support plate from bottom to top;

the back lifting connecting piece comprises a back lifting connecting piece rotating shaft, a back lifting connecting piece first connecting rod and a back lifting connecting piece second connecting rod, the head end of the back lifting connecting piece first connecting rod is fixedly connected with the back lifting connecting piece rotating shaft and is mutually perpendicular, the tail end of the back lifting connecting piece second connecting rod is fixedly connected with the back lifting connecting piece rotating shaft and is mutually perpendicular, and the head end of the back lifting connecting piece second connecting rod extends towards the head end of the bedstead;

the first fixed support of the bed frame is hinged with the rotating shaft of the lifting connecting piece of the bed body, the connecting rod of the lifting connecting piece of the bed body is hinged with the fixed support of the first base, one end of the folding rod of the lifting connecting piece of the bed body is hinged with the head end of the short electric push rod, the other end of the folding rod of the bed lifting connecting piece is hinged with the head end of the first connecting rod of the bed lifting connecting piece of the bed body, and the tail end of the short electric push rod is hinged with the tail end of the first connecting rod of the bed lifting connecting piece of the bed body;

The third fixed bracket of the bedstead is hinged with the rotating shaft of the lifting second connecting piece of the bed body; the tail end of the bed lifting connecting piece folding rod of the bed body is hinged with one end of the bed lifting second connecting piece folding rod, and the other end of the bed lifting second connecting piece folding rod is hinged with the second base fixing bracket;

the second fixed support of the bedstead is hinged with the head end of the first long electric push rod, the fourth fixed support of the bedstead is hinged with the rotating shaft of the leg bending and stretching piece, the tail end of the first long electric push rod is hinged with the connecting rod of the leg bending and stretching piece, the tail end of the connecting plate of the leg bending and stretching piece is hinged with the first connecting rod of the foot supporting plate, the second connecting rod of the foot supporting plate is hinged with the tail end of the second leg connecting piece, and the head end of the second leg connecting piece is hinged with the tail end of the bedstead;

the second leg connecting piece is provided with a leg connecting piece electromagnetic fixing device;

the rotating shaft of the back lifting connecting piece is hinged with the middle position of the bedstead; the tail end of the first connecting rod of the back lifting connecting piece is hinged with the head end of the second long electric push rod, and the tail end of the second long electric push rod is hinged with the fifth fixed bracket of the bedstead;

the bed frame is of a frame structure, and a placing opening communicated with the tail end of the bed frame is formed in the bed frame; the seat back fixing part is arranged at a position close to the head end of the seat back placing opening, a seat back placing rod is arranged on the seat back fixing part, and a seat back fixing part fixing device is also arranged on the seat back fixing part; the placement opening is provided with a handrail supporting rod and a baffle rod at a position close to the tail end of the placement opening, and a bed frame pin hole is formed on one side wall of the bed frame facing the placement opening;

The wheelchair comprises a wheelchair backrest, wheelchair armrests, a wheelchair cushion, a wheelchair support, a first wheelchair leg member, a second wheelchair leg member, a wheelchair foot member, wheelchair front wheels and wheelchair rear wheels;

the first wheelchair leg component, the second wheelchair leg component and the wheelchair foot component together form the legs of the wheelchair;

the wheelchair supporting piece is of a frame structure, the head end of the wheelchair supporting piece is hinged with the bottom of the wheelchair backrest, the left side and the right side of the wheelchair supporting piece are hinged with the bottom of the wheelchair armrests, and a excrement collecting system is arranged in the wheelchair supporting piece;

the wheelchair backrest is provided with a backrest detachable fixing piece at a position close to the bottom, the head end of the top of each wheelchair armrest is provided with an armrest detachable fixing piece, and the wheelchair backrest is detachably connected with the wheelchair armrests through the backrest detachable fixing piece and the armrest detachable fixing piece;

the top and the head end of the wheelchair armrest are provided with armrest pin holes which are matched with the bedstead pin holes;

the left side wall and the right side wall of the backrest of the wheelchair are provided with backrest fixing devices, and the backrest fixing devices are matched with the backrest fixing piece fixing devices for use;

the first wheelchair leg component is provided with a wheelchair leg component electromagnetic fixing device which is matched with the leg connecting piece electromagnetic fixing device for use;

The wheelchair front wheel is arranged at the tail end of the bottom of the wheelchair supporting piece, the wheelchair rear wheel is arranged at the head end of the bottom of the wheelchair supporting piece,

the top of the head end of the wheelchair foot component is fixedly provided with a first wheelchair foot component fixing frame, and the bottom of the head end of the wheelchair foot component is fixedly provided with a second wheelchair foot component fixing frame;

the tail end of the wheelchair support piece is hinged with the head end of the first wheelchair leg part, and the tail end of the first wheelchair leg part is hinged with the first fixing frame of the wheelchair leg part;

the wheelchair support fixing frame is fixedly arranged at the tail end of the wheelchair support and is hinged with the head end of the second wheelchair foot part fixing frame;

the excrement collecting system comprises a water pump, a water tank, a vacuum generator, a high-pressure air source, a urinal, a transfer box and a sewage box;

the urinal is embedded into the wheelchair cushion, and the top of the urinal is provided with a valve which can be opened and closed;

the urinal is communicated with the transfer box through a pipeline provided with a first pneumatic ball valve, the transfer box is communicated with the sewage box through a pipeline provided with a second pneumatic ball valve and a steering engine, and the steering engine is positioned in the sewage box;

the water tank is communicated with the water pump through a second water valve, the outlet of the water pump is divided into two paths, one path is communicated with the transfer box through a third water valve through the position, close to the top, of the side wall of the urinal and the first water valve;

The transfer box is communicated with the vacuum generator through the first air valve, the vacuum generator is communicated with the high-pressure air source through the second air valve, and the high-pressure air source is communicated with the transfer box through the third air valve.

As an improvement on the bed-chair integrated device for assisting the aged with inconvenient legs and feet in full self-care, the invention comprises the following steps:

the first water valve and the second water valve are vacuum valves, and the third air valve is a one-way air valve;

the excrement collecting box is internally provided with a liquid level monitoring instrument, and the transfer box is internally provided with a negative pressure monitoring device.

the length of the first fixing frame of the wheelchair foot part is smaller than that of the second fixing frame of the wheelchair foot part, and the wheelchair foot part is horizontally arranged;

the length of the first connecting rod of the foot supporting plate is greater than that of the second connecting rod of the foot supporting plate, and the foot supporting plate is horizontally arranged.

the leg flexor connecting plate and the leg flexor connecting rod form a certain included angle;

and a certain included angle is formed between the first connecting rod of the back lifting connecting piece and the second connecting rod of the back lifting connecting piece.

Armrests are arranged on two sides of the bedstead, the armrests are hinged with the bedstead, and locking bolts are arranged at the joints of the armrests and the bedstead.

the diameter of the rear wheel of the wheelchair is larger than that of the front wheel of the wheelchair.

The invention also provides a method for using the bed-chair integrated device for assisting the aged with inconvenient legs and feet to care, which comprises the following steps:

1) The bed and chair combination comprises:

the short electric push rod is contracted to the minimum value, the bed body lifting connecting piece is pulled to move towards the head end, the bed body lifting second connecting piece folding rod of the bed body lifting second connecting piece is driven to rotate anticlockwise, and meanwhile, the bed body lifting connecting piece drives the bed body lifting connecting piece and the bed body lifting second connecting piece folding rod to rotate anticlockwise synchronously, so that the height of the bed frame is lowered;

the first long electric push rod is contracted to the minimum value, and drives the leg flexing and extending piece to rotate clockwise until the leg flexing and extending piece connecting plate is vertically arranged;

the second long electric push rod is contracted to the minimum value, so that the back lifting connecting piece rotates anticlockwise until the head end of the second connecting rod of the back lifting connecting piece is obliquely downwards arranged;

the wheelchair is pushed towards the placing opening of the bedstead until the wheelchair supporting piece is abutted with the baffle rod, and at the moment, the wheelchair leg part electromagnetic fixing device corresponds to the leg part connecting piece electromagnetic fixing device; the wheelchair leg part electromagnetic fixing device and the leg part connecting piece electromagnetic fixing device are electrified to enable the wheelchair leg part electromagnetic fixing device and the leg part connecting piece electromagnetic fixing device to be electromagnetically fixed;

The first long electric push rod stretches to the maximum value, the leg bending and stretching piece is driven to rotate anticlockwise, the second leg connecting piece rotates anticlockwise along with the first long electric push rod, and therefore the first wheelchair leg piece is driven to rotate anticlockwise until the legs of the wheelchair are horizontally arranged;

opening the backrest detachable fixing piece and the armrest detachable fixing piece to separate the wheelchair backrest from the wheelchair armrest; the wheelchair armrests are folded onto the armrests supporting rods and pass through the armrests pin holes and the bedstead pin holes through the bolts so as to fix the wheelchair armrests; the wheelchair backrest is folded onto the backrest placing rod, and is fixed by the backrest fixing device and the backrest fixing piece fixing device; at the moment, the wheelchair armrests and the wheelchair backrest are horizontally arranged, and the wheelchair armrests, the wheelchair backrest, the chair back fixing piece, the bedstead, chair feet of the wheelchair, the second leg connecting piece and the foot supporting plate form a plane together;

the short electric push rod stretches to the maximum value, the bed body lifting connecting piece is pulled to move towards the tail end, the bed body lifting second connecting piece folding rod of the bed body lifting second connecting piece is driven to rotate clockwise, and meanwhile, the bed body lifting connecting piece drives the bed body lifting connecting piece and the bed body lifting second connecting piece folding rod to rotate clockwise synchronously, so that the height of the bed frame rises; the plane is used as a bed surface;

2) The bed and chair separation comprises:

the wheelchair leg part electromagnetic fixing device and the leg part connecting piece electromagnetic fixing device are powered off, so that the wheelchair leg part electromagnetic fixing device and the leg part connecting piece electromagnetic fixing device are separated; the first long electric push rod is contracted to the minimum value, and drives the leg flexing and extending piece to rotate clockwise until the leg flexing and extending piece connecting plate is vertically arranged;

opening the backrest fixing device and the backrest fixing member fixing device to separate the backrest fixing member from the wheelchair backrest; the second long electric push rod stretches to the maximum value, so that the back lifting connecting piece rotates clockwise, and the back lifting connecting piece is abutted with the wheelchair backrest and then drives the wheelchair backrest to rotate together until the wheelchair backrest is approximately vertically arranged;

the short electric push rod stretches to the minimum value, the bed body lifting connecting piece is pulled to move towards the tail end, the bed body lifting second connecting piece folding rod of the bed body lifting second connecting piece is driven to rotate clockwise, and meanwhile, the bed body lifting connecting piece drives the bed body lifting connecting piece and the bed body lifting second connecting piece folding rod to rotate clockwise synchronously, so that the height of the bed frame rises; the plane is used as a bed surface;

Pulling out the bolt from the armrest pin hole and the bedstead pin hole, and turning over the wheelchair armrest upwards until the wheelchair armrest is arranged vertically; the wheelchair backrest and the wheelchair armrest are fixed through the backrest detachable fixing piece and the armrest detachable fixing piece.

The invention also provides a excrement collecting method, which comprises the following steps:

1) Vacuumizing the transfer box:

in this state, the whole excrement collecting system is in a preparation state; firstly, opening a first water valve and a second water valve under the condition that all valves are kept closed, and simultaneously, keeping a high-pressure air source to continuously output stable high-pressure air; the high-pressure gas generates negative pressure through the vacuum generator, air in the transfer box is pumped, and the air pressure in the transfer box is reduced; when the negative pressure monitoring device monitors the rated pressure value, the first water valve and the second water valve are closed, the high-pressure air source is closed, and the transfer box is in a negative pressure state at the moment;

2) The transfer box extracts dirt:

in this state, the whole excrement collecting system is in a first working state; the transfer box is kept in a negative pressure preparation state by the work of the vacuum generator and the high-pressure air source in advance; after the dirt is accumulated in the urinal, the second water valve is opened and the water pump is started under the state that all valves are kept closed, and water is extracted from the water tank; after a certain delay time, the water pressure in the water pipeline rises, the first water valve is opened, the first pneumatic ball valve is opened at the same time, and high-pressure water is poured from the top of the urinal to break up dirt in the urinal and flush the dirt into the transfer box; meanwhile, the transfer box in the negative pressure state is opened by the first pneumatic ball valve, dirt is sucked into the transfer box under the suction effect formed by the valve port, and after a certain delay time, the water pump is closed by the first water valve, the second water valve, the first pneumatic ball valve and the water pump; thus, the dirt pumping action is completed, and the dirt pumping state is finished;

3) The sewage is discharged into the excrement collecting box from the transfer box:

in this state, the excrement collecting system starts the last action in the cycle; after the sewage pumping action is finished, opening a high-pressure air source and a third air valve under the condition that all valves are kept closed, enabling the high-pressure air source to generate high-pressure air to enter a transfer box, opening a steering engine and a second pneumatic ball valve after the air pressure in the transfer box is increased for a certain time, and pressing sewage into a excrement collecting box from the transfer box by the high-pressure air; stopping after a certain time, closing the high-pressure air source, and closing all valves.

As an improvement on the excrement collecting method of the invention:

when the liquid level monitoring instrument in the excrement collecting box monitors a rated value, under the condition that all valves are kept closed, a second water valve is opened, a water pump is started, and water is extracted from the water tank; after a certain delay time, the water pressure in the water pipeline rises, a third water valve is opened, and a steering engine and a second pneumatic ball valve are opened at the same time; the high-pressure water forms water circulation in the transfer box to clean the transfer box, residual dirt in the transfer box is flushed into the excrement collecting box, the action is finished after a certain time delay, the water pump is closed, and all valve closing systems enter a closed state.

The invention relates to a bed and chair integrated device for assisting the full self-care of the old with inconvenient legs and feet, which has the technical advantages that:

1) The design effectively combines the toilet, the self-care bed and the wheelchair together. The full-automatic toilet can be realized by one key, and the separation of the self-care bed and the wheelchair can be realized by one key.

2) The embedded wheelchair is added on the basis of the self-protection bed, so that the bed and the wheelchair can be separated by one key. Is convenient for the elderly and patients with inconvenient movement. Simplifying the complex process of moving the patient from bed to wheelchair.

3) The vacuum excrement collector greatly reduces the use of water in the flushing process.

4) The bed and chair separation automatic resetting function is safe and convenient, and the operation is simple.

5) The use of the toilet becomes a simple button-pressing process, and the toilet can be cleaned, dried, deodorized and the like by remote control.

The invention is mainly applied to families and hospitals, and can be used for caring old people and patients with inconvenient actions. The labor required to care for them can be reduced while improving their life. The device can help the patient to do activities such as back lifting, leg bending and leg stretching and the like to prevent bedsores, can also reduce the times of the patient getting out of the bed, is convenient for cleaning, lightens nursing intensity, and can also enable the patient to move within a certain range. The invention can enable the elderly to enjoy late years and enable the patients to keep good mind. The device is easy to operate and has low difficulty in the hand.

Drawings

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of the combination of the bed and chair integrated device for assisting the elderly with leg and foot inconvenience in full-automatic care according to the present invention;

FIG. 2 is a schematic view of the structure of the integrated device for assisting the legs and feet in the full self-care of the aged, when forming a bed surface;

FIG. 3 is a schematic view of the structure of the bed;

fig. 4 is a schematic structural view of the frame 1;

fig. 5 is a schematic structural view of the bed lifting link 3;

fig. 6 is a schematic view of the structure of the leg flexor 8;

FIG. 7 is a schematic view of the structure of the bed lifting link 5;

FIG. 8 is a schematic view of the structure of the back-up connection 18;

fig. 9 is a schematic structural view of the bed lifting second connecting member 7;

FIG. 10 is a schematic view of the wheelchair;

fig. 11 is a schematic structural view of the excrement collecting system 130;

fig. 12 is a schematic block diagram of the excrement collecting system 130.

Detailed Description

The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.

Embodiment 1, a bed and chair integrated device for assisting in full self-care of old people with inconvenient legs and feet, as shown in fig. 1-12, comprises a bedstead 1, a base 2, a bed body lifting connecting piece 3, a short electric push rod 4, a bed body lower lifting connecting piece 5, a first long electric push rod 6, a bed body lifting second connecting piece 7, a leg bending and stretching piece 8, a foot supporting plate 9, a second long electric push rod 17, a back lifting connecting piece 18 and a wheelchair.

The lower surface of the bedstead 1 is provided with a first bedstead fixing bracket 101, a second bedstead fixing bracket 102, a third bedstead fixing bracket 103 and a fourth bedstead fixing bracket 104 from the head end to the tail end. The lower surface of the bedstead 1 is also provided with a bedstead fifth fixed bracket 105, and the bedstead fifth fixed bracket 105 is positioned at one side of the bedstead 1 close to the tail end.

Four rollers 203 are installed at the bottom of the base 2, and a first base fixing support 201 and a second base fixing support 202 which are vertically arranged upwards are sequentially installed on the upper surface of the base 2 from the head end to the tail end.

The bed lifting connecting piece 5 comprises a bed lifting connecting piece first connecting rod 51, a bed lifting connecting piece second connecting rod 52 and a bed lifting connecting piece folding rod 53, wherein the tail end of the bed lifting connecting piece first connecting rod 51 is fixedly connected with the middle position of the bed lifting connecting piece second connecting rod 52 and is mutually perpendicular to the middle position of the bed lifting connecting piece second connecting rod 52, and the two ends of the bed lifting connecting piece second connecting rod 52 are fixedly connected with the head end of the bed lifting connecting piece folding rod 53.

The bed lifting connecting piece 3 comprises a bed lifting connecting piece rotating shaft 301, a bed lifting connecting piece connecting rod 302 and a bed lifting connecting piece folding rod 303, wherein the bed lifting connecting piece rotating shaft 301 is fixedly connected with the bed lifting connecting piece connecting rod 302 and is mutually perpendicular to the bed lifting connecting piece connecting rod 302, and the folding point of the bed lifting connecting piece folding rod 303 is fixedly connected with the bed lifting connecting piece rotating shaft 301.

The second connecting piece 7 for lifting the bed body comprises a second connecting piece rotating shaft 701 for lifting the bed body and a second connecting piece folding rod 702 for lifting the bed body, and the folding point of the second connecting piece folding rod 702 for lifting the bed body is fixedly connected with the second connecting piece rotating shaft 701 for lifting the bed body.

The leg flexor 8 comprises a leg flexor rotating shaft 801, a leg flexor connecting plate 803 and a leg flexor connecting rod 802, wherein the head end of the leg flexor connecting plate 803 is fixedly connected with the leg flexor rotating shaft 801 and is mutually perpendicular, the leg flexor connecting rod 802 is fixedly connected with the leg flexor rotating shaft 801 and is mutually perpendicular, and a certain included angle is formed between the leg flexor connecting plate 803 and the leg flexor connecting rod 802.

The foot support plate 9 is provided with a foot support plate first link 901 and a foot support plate second link 902 in order from bottom to top. The length of the foot support plate first link 901 is greater than the length of the foot support plate second link 902, ensuring that the foot support plate 9 is always disposed horizontally.

The back lifting connector 18 comprises a back lifting connector rotating shaft 1801, a back lifting connector first connecting rod 1802 and a back lifting connector second connecting rod 1803, wherein the head end of the back lifting connector first connecting rod 1802 is fixedly connected with the back lifting connector rotating shaft 1801 and is mutually perpendicular, the tail end of the back lifting connector second connecting rod 1803 is fixedly connected with the back lifting connector rotating shaft 1801 and is mutually perpendicular, and a certain included angle is formed between the back lifting connector first connecting rod 1802 and the back lifting connector second connecting rod 1803. The head end of the second link 1803 of the back lifting connector extends toward the head end of the frame 1.

The first fixed support 101 of bedstead is articulated with bed body lift connecting piece pivot 301, and bed body lift connecting piece connecting rod 302 is articulated with first base fixed support 201, and bed body lift connecting piece rolls over the pole 303 one end and is articulated with short electric putter 4 head end, and the other end of bed body lift connecting piece rolls over the pole 303 and is articulated with the head end of bed body bed lift connecting piece first connecting rod 51, and short electric putter 4 tail end is articulated with bed body bed lift connecting piece first connecting rod 51 tail end.

The third fixed support 103 of the bedstead is hinged with the rotating shaft 701 of the lifting second connecting piece of the bed body. The tail end of the bed lifting connecting piece folding rod 53 is hinged with one end of the bed lifting second connecting piece folding rod 702, and the other end of the bed lifting second connecting piece folding rod 702 is hinged with the second base fixing bracket 202.

The second fixing bracket 102 of the bedstead is hinged with the head end of the first long electric push rod 6, the fourth fixing bracket 104 of the bedstead is hinged with the leg bending and stretching piece rotating shaft 801, the tail end of the first long electric push rod 6 is hinged with the leg bending and stretching piece connecting rod 802, the tail end of the leg bending and stretching piece connecting plate 803 is hinged with the first connecting rod 901 of the foot supporting plate 9, the second connecting rod 902 of the foot supporting plate is hinged with the tail end of the second leg connecting piece 10, and the head end of the second leg connecting piece 10 is hinged with the tail end of the bedstead 1.

The second leg link 10 has a leg link electromagnetic fixing device 1011 mounted thereon.

The back lifting connecting piece rotating shaft 1801 is hinged with the middle position of the bedstead 1. The tail end of the first connecting rod 1802 of the back lifting connecting piece is hinged with the head end of the second long electric push rod 17, and the tail end of the second long electric push rod 17 is hinged with the fifth fixed bracket 105 of the bedstead.

Handrails 11 are arranged on two sides of the bedstead 1, the handrails 11 are hinged with the bedstead 1, and locking bolts 1101 are arranged at the joints of the handrails 11 and the bedstead 1.

The bedstead 1 is of a frame structure, and a placing opening 2102 communicated with the tail end of the bedstead 1 is formed in the bedstead. The placement opening 2102 is provided with a back fixing piece 12 near the head end of the placement opening 2102, the back fixing piece 12 is positioned at the left side and the right side of the placement opening 2102, a back placement rod 2106 is arranged on the back fixing piece 12, and a back fixing piece fixing device 1211 is also arranged on the back fixing piece 12; the placement opening 2102 is provided with a handrail support rod 2103 and a baffle rod 2104 near the tail end thereof, and a bed frame pin hole 2105 is also provided on the bed frame 1 on a side wall facing the placement opening 2102.

The wheelchair comprises a wheelchair backrest 507, wheelchair armrests 503, a wheelchair cushion 502, wheelchair supports 501, a first wheelchair leg member 5041, a second wheelchair leg member 5042, wheelchair foot members 505, wheelchair front wheels 5062 and wheelchair rear wheels 5061.

The first wheelchair leg member 5041, the second wheelchair leg member 5042 and the wheelchair foot member 505 together comprise the legs of the wheelchair.

The wheelchair support 501 is of a frame structure, the head end of the wheelchair support 501 is hinged with the bottom of the wheelchair backrest 507, the left side and the right side of the wheelchair support 501 are hinged with the bottom of the wheelchair armrests 503, and the wheelchair support 501 is internally provided with a excrement collecting system 130.

The wheelchair backrest 507 is provided with a backrest detachable fixing member 5072 at a position close to the bottom, the top head end of the wheelchair armrest 503 is provided with an armrest detachable fixing member 5032, and the wheelchair backrest 507 is detachably connected with the wheelchair armrest 503 through the backrest detachable fixing member 5072 and the armrest detachable fixing member 5032.

The top end of the wheelchair armrest 503 is provided with an armrest pin hole 5031, and the armrest pin hole 5031 is matched with the bedstead pin hole 2105 for use and is fixed by a bolt.

The left and right side walls of the wheelchair backrest 507 are provided with backrest fixing means 5071, and the backrest fixing means 5071 is used in cooperation with the backrest fixing means 1211.

The first wheelchair leg 5041 has a wheelchair leg electromagnetic attachment 50411 mounted thereto, and the wheelchair leg electromagnetic attachment 50411 cooperates with the leg connector electromagnetic attachment 1011.

The wheelchair front wheel 5062 is arranged at the tail end of the bottom of the wheelchair support 501, the wheelchair rear wheel 5061 is arranged at the head end of the bottom of the wheelchair support 501, and the diameter of the wheelchair rear wheel 5061 is larger than that of the wheelchair front wheel 5062, so that the stability of the wheelchair structure can be ensured as much as possible, and the subsequent combination of the wheelchair and a bed can be facilitated.

The top of the head end of the wheelchair foot member 505 is fixedly provided with a first wheelchair foot member fixing bracket 5051, and the bottom of the head end of the wheelchair foot member 505 is fixedly provided with a second wheelchair foot member fixing bracket 5052. The length of the wheelchair foot member first mount 5051 is less than the length of the wheelchair foot member second mount 5052, ensuring that the wheelchair foot member 505 remains horizontal at all times.

The wheelchair support 501 is hinged at its trailing end to the first wheelchair leg 5041 head end and the first wheelchair leg 5041 trailing end to the wheelchair foot first mount 5051.

The wheelchair support 501 is fixedly provided with a vertically downwardly extending wheelchair support mount 5021 at the rear end thereof, the wheelchair support mount 5021 being hinged to the head end of the wheelchair foot member second mount 5052.

The use process of the bed and chair combination of the invention comprises the following steps:

the short electric push rod 4 is contracted to the minimum value, the lower lifting connecting piece 5 of the bed body is pulled to move towards the head end, the folding rod 702 of the second connecting piece 7 of the bed body lifting is driven to rotate anticlockwise, and meanwhile, the lower lifting connecting piece 5 of the bed body drives the folding rod 702 of the second connecting piece 3 of the bed body lifting to rotate anticlockwise synchronously, so that the height of the bed frame 1 is lowered.

The first long electric push rod 6 is contracted to the minimum value, so that the leg flexing piece 8 is driven to rotate clockwise until the leg flexing piece connecting plate 803 is vertically arranged;

The second long electric push rod 17 is retracted to a minimum value, so that the back lifting connecting piece 18 rotates anticlockwise until the head end of the back lifting connecting piece second connecting rod 1803 is obliquely arranged downwards.

The wheelchair is pushed towards the placement opening 2102 of the bed frame 1 until the wheelchair support 501 abuts against the lever 2104, at which time the wheelchair leg electromagnetic fixing means 50411 corresponds to the leg connector electromagnetic fixing means 1011; the wheelchair leg component electromagnetic fixing device 50411 and the leg connecting piece electromagnetic fixing device 1011 are electrified to enable the wheelchair leg component electromagnetic fixing device 50411 and the leg connecting piece electromagnetic fixing device 1011 to be electromagnetically fixed;

the first long electric push rod 6 stretches to the maximum value, and drives the leg bending and stretching piece 8 to rotate anticlockwise, and the second leg connecting piece 10 rotates anticlockwise along with the first long electric push rod, so that the first wheelchair leg piece 5041 is driven to rotate anticlockwise until the legs of the wheelchair are horizontally arranged.

The backrest detachable fixing 5072 and the armrest detachable fixing 5032 are opened to separate the wheelchair backrest 507 from the wheelchair armrest 503; the wheelchair armrest 503 is folded onto the armrest support rod 2103, and the wheelchair armrest 503 is fixed by inserting pins through the armrest pin holes 5031 and the bedstead pin holes 2105; the wheelchair backrest 507 is folded onto the backrest placing rod 2106, and the wheelchair backrest 507 is fixed by the backrest fixing device 5071 and the backrest fixing member fixing device 1211; at this time, the wheelchair armrest 503 and the wheelchair backrest 507 are all horizontally arranged, and the wheelchair armrest 503, the wheelchair backrest 507, the chair back fixing member 12, the bed frame 1, the chair feet of the wheelchair, the second leg connecting members 10 and the foot supporting plate 9 together form a plane.

The short electric push rod 4 stretches to the maximum value, the lower lifting connecting piece 5 of the bed body is pulled to move towards the tail end, the folding rod 702 of the second connecting piece 7 of lifting of the bed body is driven to rotate clockwise, and meanwhile, the lifting connecting piece 5 of the bed body drives the folding rod 702 of the second connecting piece 3 of lifting of the bed body to rotate clockwise synchronously, so that the height of the bed frame 1 rises. The plane is used as a bed surface.

The use process of the bed and chair separation comprises the following steps:

The wheelchair leg electromagnetic fixing device 50411 and the leg connector electromagnetic fixing device 1011 are powered off to separate the two; the first long electric push rod 6 is contracted to the minimum value, so that the leg flexing piece 8 is driven to rotate clockwise until the leg flexing piece connecting plate 803 is vertically arranged;

opening the back fixation device 5071 and the back fixation device 1211 such that the back fixation 12 is separated from the wheelchair back 507; the second long electric push rod 17 stretches to the maximum value, so that the back lifting connecting piece 18 rotates clockwise, and the back lifting connecting piece 18 is abutted with the wheelchair backrest 507 and then drives the wheelchair backrest 507 to rotate together until the wheelchair backrest 507 is approximately vertically arranged;

The short electric push rod 4 stretches to the minimum value, the lower lifting connecting piece 5 of the bed body is pulled to move towards the tail end, the folding rod 702 of the second connecting piece 7 of lifting of the bed body is driven to rotate clockwise, and meanwhile, the lifting connecting piece 5 of the bed body drives the folding rod 702 of the second connecting piece 3 of lifting of the bed body to rotate clockwise synchronously, so that the height of the bed frame 1 rises. The plane is used as a bed surface.

The bolts are pulled out from the armrest pin holes 5031 and the bedstead pin holes 2105, and the wheelchair armrest 503 is turned upwards until being vertically arranged; the wheelchair backrest 507 and wheelchair armrest 503 are fixed by the backrest detachable fixing 5072 and the armrest detachable fixing 5032.

And (5) separating the bed and the chair.

The excrement collection system 130 includes a water pump 1301, a water tank 1302, a vacuum generator 1303, a high pressure air source 1304, a urinal 1305, a transfer box 1306, and a dirt box 1307.

A urinal 1305 is embedded in the wheelchair cushion 502, and an openable and closable valve is provided at the top of the urinal 1305.

Urinal 1305 is communicated with transfer box 1306 through a pipeline provided with a first pneumatic ball valve 1401, transfer box 1306 is communicated with dirt box 1307 through a pipeline provided with a second pneumatic ball valve 1402 and a steering engine 1601, and steering engine 1601 is positioned in dirt box 1307;

The water tank 1302 is communicated with the water pump 1301 through the second water valve 1502, the outlet of the water pump 1301 is divided into two paths, one path is communicated with the transfer tank 1306 through the first water valve 1501 and the position, close to the top, of the side wall of the urinal 1305, and the other path is communicated with the transfer tank 1306 through the third water valve 1503;

the transfer box 1306 is communicated with the vacuum generator 1303 through a first air valve 1201, the vacuum generator 1303 is communicated with the high-pressure air source 1304 through a second air valve 1202, and the high-pressure air source 1304 is communicated with the transfer box 1306 through a third air valve 1203.

The first water valve 1501 and the second water valve 1502 are vacuum valves and the third air valve 1203 is a one-way air valve.

A liquid level monitoring instrument is arranged in the excrement collecting tank 1307, and a negative pressure monitoring device is arranged in the transfer tank 1306.

The excrement collecting system 130 is used in three steps including vacuum pumping of the transfer box, dirt drawing of the transfer box and draining of the dirt from the transfer box into the excrement collecting box.

1) Vacuumizing the transfer box:

in this state, the whole excrement collecting system 130 is in a ready state. First, the first water valve 1501 and the second water valve 1502 are opened while all valves are kept closed, while the high pressure gas source 1304 keeps continuously outputting stable high pressure gas. The high-pressure gas generates negative pressure by the vacuum generator 1303, and starts to draw air from the transfer box 1306, and the air pressure in the transfer box 1306 decreases. Until the negative pressure monitoring device monitors the rated pressure value, the first water valve 1501 and the second water valve 150 are closed, the high pressure air source 1304 is closed, and the transfer box 1306 is in a negative pressure state.

2) The transfer box extracts dirt:

in this state, the whole excrement collecting system 130 is in the first working state. The transfer case 1306 has been previously kept in a negative pressure preparation state by the operation of the vacuum generator 1303 and the high-pressure air source 1304. After the accumulation of dirt in the bowl 1305, with all valves closed, the second water valve 1502 is opened and the water pump 1301 is activated, water is drawn from the water tank 1302. After a certain delay time the water pressure in the water line rises, opening the first water valve 1501 and simultaneously opening the first air ball valve 1401, the high pressure water is poured from the top of the urinal 1305 to break up the dirt in the urinal 1305 and flush it into the transfer box 1306. Meanwhile, the transfer box 1306 in the negative pressure state is opened by the first pneumatic ball valve 1401, dirt is sucked into the transfer box 1306 under the suction effect formed by the valve port, the water pump 1301 is closed after a certain time delay, and the first water valve 1501, the second water valve 1502, the first pneumatic ball valve 1401 and the water pump 1301 are closed. Thus, the dirt extraction is completed, and the dirt extraction state is finished.

in this state, the excrement collecting system 130 starts the last action in the cycle. After the dirt pumping action is finished, the high-pressure air source 1304 and the third air valve 1203 are opened under the condition that all valves are kept closed, the high-pressure air source 1304 generates high-pressure air to enter the transfer box 1306, the steering engine 1601 and the second pneumatic ball valve 1402 are opened after the air pressure in the transfer box 1306 is increased for a certain time, and dirt is pressed into the excrement collecting box 1307 from the interior of the transfer box 1306 by the high-pressure air; after a certain time, the high pressure gas source 1304 is turned off and all valves are closed. Thus, the sewage discharge action is completed, the excrement collecting process is finished, and the preparation work for the next excrement collecting is started.

In addition, there is an additional step:

when the level monitoring instrument in the toilet 1307 detects the rated value, the second water valve 1502 is opened and the water pump 1301 is started under the condition that all valves are kept closed, and water is extracted from the water tank 1302. After a certain delay time the water pressure in the water line rises, opening the third water valve 1503, simultaneously opening the steering engine 1601 and the second pneumatic ball valve 1402. The high pressure water forms water circulation in the transfer tank 1306 to clean the transfer tank 1306, the residual dirt in the transfer tank 1306 is flushed into the excrement collection tank 1307, the action is finished after a certain time delay, the water pump 1301 is closed, and all the valve closing systems enter a closed state. The excrement collecting box 1307 is disassembled and cleaned and then is assembled again.

Finally, it should also be noted that the above list is merely a few specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.

Claims

1. An integrative device of bed chair of inconvenient old man's nursing of auxiliary leg and foot, its characterized in that: the wheelchair comprises a bedstead (1), a base (2), a bed body lifting connecting piece (3), a short electric push rod (4), a bed body lifting connecting piece (5), a first long electric push rod (6), a bed body lifting second connecting piece (7), a leg bending and stretching piece (8), a foot supporting plate (9), a second long electric push rod (17), a back lifting connecting piece (18) and a wheelchair;

The lower surface of the bedstead (1) is provided with a first bedstead fixing bracket (101), a second bedstead fixing bracket (102), a third bedstead fixing bracket (103) and a fourth bedstead fixing bracket (104) in sequence from the head end to the tail end; the lower surface of the bedstead (1) is also provided with a bedstead fifth fixed bracket (105), and the bedstead fifth fixed bracket (105) is positioned at one side of the bedstead (1) close to the tail end;

four rollers (203) are arranged at the bottom of the base (2), and a first base fixing bracket (201) and a second base fixing bracket (202) which are vertically upwards arranged are sequentially arranged on the upper surface of the base (2) from the head end to the tail end;

the bed body and bed lifting connecting piece (5) comprises a bed body and bed lifting connecting piece first connecting rod (51), a bed body and bed lifting connecting piece second connecting rod (52) and a bed body and bed lifting connecting piece folding rod (53), the tail end of the bed body and bed lifting connecting piece first connecting rod (51) is fixedly connected with the middle position of the bed body and bed lifting connecting piece second connecting rod (52) and is mutually perpendicular, and the two ends of the bed body and bed lifting connecting piece second connecting rod (52) are fixedly connected with the head end of the bed body and bed lifting connecting piece folding rod (53);

The bed body lifting connecting piece (3) comprises a bed body lifting connecting piece rotating shaft (301), a bed body lifting connecting piece connecting rod (302) and a bed body lifting connecting piece folding rod (303), wherein the bed body lifting connecting piece rotating shaft (301) is fixedly connected with the bed body lifting connecting piece connecting rod (302) and is mutually perpendicular to the bed body lifting connecting piece connecting rod (302), and the folding point of the bed body lifting connecting piece folding rod (303) is fixedly connected with the bed body lifting connecting piece rotating shaft (301);

the bed body lifting second connecting piece (7) comprises a bed body lifting second connecting piece rotating shaft (701) and a bed body lifting second connecting piece folding rod (702), and the folding point of the bed body lifting second connecting piece folding rod (702) is fixedly connected with the bed body lifting second connecting piece rotating shaft (701);

the leg flexor (8) comprises a leg flexor rotating shaft (801), a leg flexor connecting plate (803) and a leg flexor connecting rod (802), wherein the head end of the leg flexor connecting plate (803) is fixedly connected with the leg flexor rotating shaft (801) and is mutually perpendicular, and the leg flexor connecting rod (802) is fixedly connected with the leg flexor rotating shaft (801) and is mutually perpendicular;

the foot support plate (9) is sequentially provided with a first foot support plate connecting rod (901) and a second foot support plate connecting rod (902) from bottom to top;

The back lifting connecting piece (18) comprises a back lifting connecting piece rotating shaft (1801), a back lifting connecting piece first connecting rod (1802) and a back lifting connecting piece second connecting rod (1803), the head end of the back lifting connecting piece first connecting rod (1802) is fixedly connected with the back lifting connecting piece rotating shaft (1801) and is mutually perpendicular, the tail end of the back lifting connecting piece second connecting rod (1803) is fixedly connected with the back lifting connecting piece rotating shaft (1801) and is mutually perpendicular, and the head end of the back lifting connecting piece second connecting rod (1803) extends towards the head end of the bedstead (1);

the bed frame comprises a bed frame body, a bed frame body lifting connecting piece rotating shaft (301), a bed body lifting connecting piece connecting rod (302), a bed body lifting connecting piece folding rod (303), a short electric push rod (4) and a bed body lifting connecting piece connecting rod (51), wherein the bed frame body lifting connecting piece rotating shaft (301) is hinged, the bed body lifting connecting piece connecting rod (302) is hinged to the first base fixing support (201), one end of the bed body lifting connecting piece folding rod (303) is hinged to the head end of the short electric push rod (4), the other end of the bed body lifting connecting piece folding rod (303) is hinged to the head end of the bed body bed lifting connecting piece connecting rod (51), and the tail end of the short electric push rod (4) is hinged to the tail end of the bed body bed lifting connecting piece (51);

the third fixed bracket (103) of the bed frame is hinged with the rotating shaft (701) of the lifting second connecting piece of the bed body; the tail end of the bed body bed lifting connecting piece folding rod (53) is hinged with one end of a bed body lifting second connecting piece folding rod (702), and the other end of the bed body lifting second connecting piece folding rod (702) is hinged with a second base fixing bracket (202);

The second fixed support (102) of the bedstead is hinged with the head end of the first long electric push rod (6), the fourth fixed support (104) of the bedstead is hinged with the leg bending and stretching piece rotating shaft (801), the tail end of the first long electric push rod (6) is hinged with the leg bending and stretching piece connecting rod (802), the tail end of the leg bending and stretching piece connecting plate (803) is hinged with the first connecting rod (901) of the foot supporting plate (9), the second connecting rod (902) of the foot supporting plate is hinged with the tail end of the second leg connecting piece (10), and the head end of the second leg connecting piece (10) is hinged with the tail end of the bedstead (1);

the second leg connecting piece (10) is provided with a leg connecting piece electromagnetic fixing device (1011);

the back lifting connecting piece rotating shaft (1801) is hinged with the middle position of the bedstead (1); the tail end of a first connecting rod (1802) of the back lifting connecting piece is hinged with the head end of a second long electric push rod (17), and the tail end of the second long electric push rod (17) is hinged with a fifth fixed bracket (105) of the bedstead;

the bed frame (1) is of a frame structure, and a placing opening (2102) communicated with the tail end of the bed frame is formed in the bed frame (1); the placement opening (2102) is provided with a chair back fixing piece (12) at a position close to the head end of the placement opening, a chair back placement rod (2106) is arranged on the chair back fixing piece (12), and a chair back fixing piece fixing device (1211) is further arranged on the chair back fixing piece (12); the placement opening (2102) is provided with a handrail supporting rod (2103) and a baffle rod (2104) at a position close to the tail end of the placement opening, and a bed frame pin hole (2105) is formed on one side wall of the bed frame (1) facing the placement opening (2102);

The wheelchair comprises a wheelchair backrest (507), wheelchair armrests (503), a wheelchair cushion (502), a wheelchair support (501), a first wheelchair leg member (5041), a second wheelchair leg member (5042), a wheelchair foot member (505), wheelchair front wheels (5062) and wheelchair rear wheels (5061);

the first wheelchair leg member (5041), the second wheelchair leg member (5042) and the wheelchair foot member (505) together form a wheelchair leg;

the wheelchair support piece (501) is of a frame structure, the head end of the wheelchair support piece (501) is hinged with the bottom of the wheelchair backrest (507), the left side and the right side of the wheelchair support piece (501) are hinged with the bottom of the wheelchair armrest (503), and the wheelchair support piece (501) is internally provided with a excrement collecting system (130);

the wheelchair backrest (507) is provided with a backrest detachable fixing piece (5072) at a position close to the bottom, the head end of the top of the wheelchair armrest (503) is provided with an armrest detachable fixing piece (5032), and the wheelchair backrest (507) is detachably connected with the wheelchair armrest (503) through the backrest detachable fixing piece (5072) and the armrest detachable fixing piece (5032);

the top and the radical end of the wheelchair armrest (503) are provided with armrest pin holes (5031), and the armrest pin holes (5031) are matched with the bedstead pin holes (2105);

The left side wall and the right side wall of the wheelchair backrest (507) are provided with backrest fixing devices (5071), and the backrest fixing devices (5071) are matched with the backrest fixing piece fixing devices (1211);

the first wheelchair leg component (5041) is provided with a wheelchair leg component electromagnetic fixing device (50411), and the wheelchair leg component electromagnetic fixing device (50411) is matched with the leg connecting piece electromagnetic fixing device (1011);

the wheelchair front wheel (5062) is arranged at the tail end of the bottom of the wheelchair support (501), the wheelchair rear wheel (5061) is arranged at the head end of the bottom of the wheelchair support (501),

the top of the head end of the wheelchair foot component (505) is fixedly provided with a first wheelchair foot component fixing frame (5051), and the bottom of the head end of the wheelchair foot component (505) is fixedly provided with a second wheelchair foot component fixing frame (5052);

the tail end of the wheelchair support (501) is hinged with the head end of the first wheelchair leg component (5041), and the tail end of the first wheelchair leg component (5041) is hinged with the first fixing frame (5051) of the wheelchair foot component;

the tail end of the wheelchair support (501) is fixedly provided with a wheelchair support fixing frame (5021) which extends downwards vertically, and the wheelchair support fixing frame (5021) is hinged with the head end of a second fixing frame (5052) of the wheelchair foot part;

The excrement collecting system (130) comprises a water pump (1301), a water tank (1302), a vacuum generator (1303), a high-pressure air source (1304), a urinal (1305), a transfer box (1306) and an excrement collecting box (1307);

the urinal (1305) is embedded into the wheelchair cushion (502), and the top of the urinal (1305) is provided with an openable and closable valve;

the urinal (1305) is communicated with the transfer box (1306) through a pipeline provided with a first pneumatic ball valve (1401), the transfer box (1306) is communicated with the excrement collecting box (1307) through a pipeline provided with a second pneumatic ball valve (1402) and a steering engine (1601), and the steering engine (1601) is positioned in the excrement collecting box (1307);

the water tank (1302) is communicated with the water pump (1301) through the second water valve (1502), the outlet of the water pump (1301) is divided into two paths, one path is communicated with the side wall of the urinal (1305) at a position close to the top through the first water valve (1501), and the other path is communicated with the transfer tank (1306) through the third water valve (1503);

the transfer box (1306) is communicated with the vacuum generator (1303) through a first air valve (1201), the vacuum generator (1303) is communicated with the high-pressure air source (1304) through a second air valve (1202), and the high-pressure air source (1304) is communicated with the transfer box (1306) through a third air valve (1203);

1) The bed and chair combination comprises:

the short electric push rod (4) is contracted to the minimum value, the bed body lifting connecting piece (5) is pulled to move towards the head end, the bed body lifting second connecting piece folding rod (702) of the bed body lifting second connecting piece (7) is driven to rotate anticlockwise, meanwhile, the bed body lifting connecting piece (5) drives the bed body lifting connecting piece (3) and the bed body lifting second connecting piece folding rod (702) to rotate anticlockwise synchronously, and the height of the bed frame (1) is lowered;

the first long electric push rod (6) is contracted to the minimum value to drive the leg flexing piece (8) to rotate clockwise until the leg flexing piece connecting plate (803) is vertically arranged;

the second long electric push rod (17) is contracted to the minimum value, so that the back lifting connecting piece (18) rotates anticlockwise until the head end of the second connecting rod (1803) of the back lifting connecting piece is obliquely downwards arranged;

the wheelchair is pushed towards the placement opening (2102) of the bed frame (1) until the wheelchair support (501) is abutted against the baffle rod (2104), and at the moment, the wheelchair leg part electromagnetic fixing device (50411) corresponds to the leg part connecting piece electromagnetic fixing device (1011); the wheelchair leg component electromagnetic fixing device (50411) and the leg connecting piece electromagnetic fixing device (1011) are electrified to enable the wheelchair leg component electromagnetic fixing device and the leg connecting piece electromagnetic fixing device to be electromagnetically fixed;

The first long electric push rod (6) stretches to the maximum value, the leg bending and stretching piece (8) is driven to rotate anticlockwise, the second leg connecting piece (10) rotates anticlockwise along with the first long electric push rod, and therefore the first wheelchair leg part (5041) is driven to rotate anticlockwise until the legs of the wheelchair are horizontally arranged;

opening the backrest detachable fixing member (5072) and the armrest detachable fixing member (5032) to separate the wheelchair backrest (507) from the wheelchair armrest (503); the wheelchair armrest (503) is folded onto the armrest support rod (2103), and the wheelchair armrest (503) is fixed by inserting pins through the armrest pin holes (5031) and the bedstead pin holes (2105); the wheelchair backrest (507) is folded onto the backrest placing rod (2106), and the wheelchair backrest (507) is fixed through the backrest fixing device (5071) and the backrest fixing piece fixing device (1211); at the moment, the wheelchair armrests (503) and the wheelchair backrest (507) are horizontally arranged, and the wheelchair armrests (503), the wheelchair backrest (507), the chair back fixing piece (12), the bedstead (1), chair feet of the wheelchair, the second leg connecting piece (10) and the foot supporting plate (9) form a plane together;

the short electric push rod (4) stretches to the maximum value, the bed body lifting connecting piece (5) is pulled to move towards the tail end, the bed body lifting second connecting piece folding rod (702) of the bed body lifting second connecting piece (7) is driven to rotate clockwise, and meanwhile, the bed body lifting connecting piece (5) drives the bed body lifting connecting piece (3) and the bed body lifting second connecting piece folding rod (702) to rotate clockwise synchronously, so that the height of the bed frame (1) rises; the plane is used as a bed surface;

2) The bed and chair separation comprises:

the first long electric push rod (6) is contracted to the minimum value, the leg bending and extending piece (8) is driven to rotate clockwise until the leg bending and extending piece connecting plate (803) is vertically arranged, and the wheelchair leg part electromagnetic fixing device (50411) and the leg connecting piece electromagnetic fixing device (1011) are powered off, so that the two parts are separated;

opening the back fixation device (5071) and the back fixation device (1211) so that the back fixation (12) is separated from the wheelchair back (507); the second long electric push rod (17) stretches to the maximum value, so that the back lifting connecting piece (18) rotates clockwise, and the back lifting connecting piece (18) is abutted with the wheelchair backrest (507) to drive the wheelchair backrest (507) to rotate together until the wheelchair backrest (507) is approximately vertically arranged;

pulling out the bolts from the armrest pin holes (5031) and the bedstead pin holes (2105) and turning over the wheelchair armrest (503) upwards until the wheelchair armrest is vertically arranged; the wheelchair backrest (507) and the wheelchair armrest (503) are fixed by the backrest detachable fixing piece (5072) and the armrest detachable fixing piece (5032).

2. The bed and chair integrated device for assisting in nursing of old people with inconvenient legs and feet according to claim 1, wherein:

the first water valve (1501) and the second water valve (1502) are vacuum valves, and the third air valve (1203) is a one-way air valve;

the excrement collecting box (1307) is internally provided with a liquid level monitoring instrument, and the transfer box (1306) is internally provided with a negative pressure monitoring device.

3. The bed and chair integrated device for assisting in nursing of old people with inconvenient legs and feet according to claim 2, wherein:

the length of the first fixing frame (5051) of the wheelchair foot part is smaller than that of the second fixing frame (5052) of the wheelchair foot part, and the wheelchair foot part (505) is horizontally arranged;

The length of the first connecting rod (901) of the foot supporting plate is larger than that of the second connecting rod (902) of the foot supporting plate, and the foot supporting plate (9) is horizontally arranged.

4. A bed chair integrated device for assisting in the nursing of elderly people with inconvenient legs and feet according to claim 3, characterized in that:

the leg flexor connecting plate (803) and the leg flexor connecting rod (802) form a certain included angle;

an included angle is formed between the back lifting connecting piece first connecting rod (1802) and the back lifting connecting piece second connecting rod (1803).

5. The bed and chair integrated device for assisting in nursing of old people with inconvenient legs and feet according to claim 4, wherein:

armrests (11) are arranged on two sides of the bedstead (1), the armrests (11) are hinged with the bedstead (1), and locking bolts (1101) are arranged at the joints of the armrests (11) and the bedstead (1).

6. The bed and chair integrated device for assisting in nursing of old people with inconvenient legs and feet according to claim 5, wherein:

the wheelchair rear wheel (5061) has a larger diameter than the wheelchair front wheel (5062).

7. A method for collecting feces using a bed-chair integrated device for assisting the nursing of old people with inconvenient legs and feet according to any one of claims 1-6, characterized in that: the method comprises the following steps:

1) Vacuumizing the transfer box:

in this state, the whole excrement collecting system (130) is in a preparation state; first, the first water valve (1501) and the second water valve (1502) are opened under the condition that all valves are kept closed, and meanwhile, the high-pressure gas source (1304) keeps continuously outputting stable high-pressure gas; the high-pressure gas generates negative pressure through the vacuum generator (1303), air in the transfer box (1306) is pumped, and the air pressure in the transfer box (1306) is reduced; the first water valve (1501) and the second water valve (1502) are closed until the negative pressure monitoring device monitors the rated pressure value, the high-pressure air source (1304) is closed, and the transfer box (1306) is in a negative pressure state;

2) The transfer box extracts dirt:

in this state, the whole excrement collecting system (130) is in a first working state; the transfer box (1306) is kept in a negative pressure preparation state by the operation of the vacuum generator (1303) and the high-pressure air source (1304) in advance; after dirt is accumulated in the urinal (1305), the second water valve (1502) is opened and the water pump (1301) is started under the state that all valves are kept closed, and water is extracted from the water tank (1302); after a certain delay time, the water pressure in the water pipeline rises, the first water valve (1501) is opened, the first pneumatic ball valve (1401) is opened at the same time, and high-pressure water is poured from the top of the urinal (1305) to break up dirt in the urinal (1305) and flush the dirt into the transfer box (1306); meanwhile, after the first pneumatic ball valve (1401) is opened, the transfer box (1306) in the negative pressure state forms a suction effect on the valve port to suck dirt into the transfer box (1306), and after a certain time delay, the water pump (1301) is closed, and the first water valve (1501), the second water valve (1502), the first pneumatic ball valve (1401) and the water pump (1301) are closed; thus, the dirt pumping action is completed, and the dirt pumping state is finished;

in this state, the excrement collecting system (130) starts the last action in the cycle; after the sewage pumping action is finished, a high-pressure air source (1304) and a third air valve (1203) are opened under the condition that all valves are kept closed, the high-pressure air source (1304) generates high-pressure air to enter a transit box (1306), a steering engine (1601) and a second pneumatic ball valve (1402) are opened after the air pressure in the transit box (1306) is increased for a certain time, and sewage is pressed into a excrement collecting box (1307) from the interior of the transit box (1306) by the high-pressure air; after a certain time, the high pressure air source (1304) is closed and all valves are closed.

8. The excrement collecting method according to claim 7, wherein: the method also comprises the following steps:

when the liquid level monitoring instrument in the excrement collection box (1307) monitors a rated value, under the condition that all valves are kept closed, a second water valve (1502) is opened, a water pump (1301) is started, and water is extracted from a water tank (1302); after a certain delay time, the water pressure in the water pipeline rises, a third water valve (1503) is opened, and a steering engine (1601) and a second pneumatic ball valve (1402) are simultaneously opened; the high-pressure water forms a circulation cleaning transfer box (1306) of water in the transfer box (1306), residual dirt in the transfer box (1306) is flushed into a excrement collecting box (1307), the action is finished after a certain time delay, the water pump (1301) is closed, and all valve closing systems enter a closed state.