CN113143629A

CN113143629A - Bed-chair integrated device for assisting old people with inconvenient legs and feet and use method

Info

Publication number: CN113143629A
Application number: CN202110230348.XA
Authority: CN
Inventors: 罗文�; 何朝通; 屠晨昊; 华志康; 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: 2021-07-23
Anticipated expiration: 2041-03-02
Also published as: CN216148384U; CN113143629B; CN216628950U; CN216168393U; CN113143627A; CN113143628A; CN113143628B

Abstract

The invention provides a bed-chair integrated device for assisting the old with inconvenient legs and feet, which comprises a bedstead, a base, a bed body lifting connecting piece, a short electric push rod, a bed body under-bed lifting connecting piece, a first long electric push rod, a bed body lifting second connecting piece, a leg bending and stretching piece, a foot supporting plate, a second long electric push rod, a back rising connecting piece and a wheelchair; the invention also provides a use method of the bed-chair integrated device for assisting the old with inconvenient legs and feet, which is mainly applied to families and hospitals and can be used for caring the old and patients with inconvenient actions. The labor required for caring for them can be reduced while improving their lives. The device can help a patient to do activities such as raising the back, bending and stretching legs and the like to prevent bedsores, can also reduce the times of getting off the bed of the patient, is convenient to clean, reduces nursing intensity, and can also enable the patient to move within a certain range.

Description

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

Technical Field

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

Background

The self-nursing bed is a nursing product invented for taking care of the disabled conveniently, and the mechanical function research of the self-nursing bed is basically complete and not weaker than countries in Europe and America in related enterprises and research institutes in China at present. What is lacking is an intelligent control technology, a human-computer interaction technology and a sensor fusion technology, and the lack of the key technologies causes the highly intelligent self-care bed technology to be mastered only in the developed countries. The high-intelligent self-nursing bed on the domestic market is difficult to find the trail of the shadow or the price makes most of the required families difficult to bear the self-nursing bed, which is very important for patients and families, enhances the nursing ability, lightens the burden of the families and the society, and helps the patients to return to the society as soon as possible. The intelligent self-nursing bed can intelligently assist a patient to turn over, back up, bend and stretch legs and other activities to prevent bedsores, intelligently assist the patient to defecate, facilitate cleaning, reduce nursing intensity, and enable a nursing person to finish the conversion of sickbeds among rising, outdoor rehabilitation and various departments and daily nursing work such as cleaning and convenience without being in contact with the body of the nursing person, so that the labor intensity of the nursing person is greatly reduced, and the working efficiency is improved. Meanwhile, the psychological burden of the nursed personnel is reduced, and the comfort of the nursed personnel is improved.

Technically, the current research and development in China focuses more on the design based on Chinese ergonomics, and the research and development of self-nursing bed products by foreign companies include the aspects of process, intellectualization and the like. In addition, the high-end intelligent self-nursing bed is developed and produced in large quantities only by a few enterprises in developed countries, such as Stryker medical company in the United states, Arjo Huntleigh company under GetingeAB group in Sweden, Paramoutbed company in Japan, and the like. Most of domestic high-intelligent self-nursing beds still stay at the laboratory stage at present, such as bed-chair integrated service robots of Beijing aerospace university, multifunctional rehabilitation self-nursing bed robots of Shanghai worker university and the like. Several representative intelligent self-care beds and technical parameters are described below.

(1) InTouch self-care bed: the inventor of Stryker medical in America develops an InTouch self-care bed, and the InTouch self-care bed has the functions of lifting the back of a user and lifting a safety guard rail of a common self-care bed and the like, and is uniquely integrated with playable 24-language clinical phrases, so that patients in various countries can be conveniently diagnosed and treated, weight change maps of up to 50 patients can be recorded, and nursing staff can adjust a nursing plan according to the weight change maps and help the patients to the greatest extent. The self-nursing bed can also customize automatic cleaning and turn over at regular time to change the body position of a patient, and is internally provided with a pressure sore evaluation scale BradenScale, so that doctors and nursing staff can conveniently know the condition of the patient and customize different rehabilitation plans. Can also play music and beautiful sound in nature, and relieve the pressure of patients. Data synchronization can be realized by using an InTouch self-care bed in an ICU ward.

(2) TotalcareP500 self-care bed: the american Hill-rom company developed a TotalcareP500 self-care bed that structurally supports the functions of lying down, back up, standing, etc., which integrates the microclizate system developed by the company. The digital part of the bed has the functions of recording and storing information of a plurality of patients, detecting pressure, temperature, friction and other information of four areas of the bed surface, intelligently drying and radiating high-risk areas with bedsores based on the weight of the patients as reference, reducing the possibility of bedsores, supporting hands-free CPR, and emergency rescue functions of 20-degree trendelenburg position one-key conversion and reset, one-key alarm and the like, and guaranteeing the life safety of users.

(3) Enterprise9000 self-care bed: ArjoHuntleigh, Sweden developed an Enterprise9000 self-care bed which possessed very convenient self-cleaning, sterilizing capabilities. All components of the self-nursing bed are in modular design and can be detached and replaced, and maintenance is facilitated. The body protection bed can accurately measure the weight of a recorder, has an error within 500g and a maximum bearing weight of 250kg, and can electrically adjust the height, inclination, back rising, knee bending, leg lifting and other functions of the bed surface. And these varying angle values can be displayed in numerical form on the control panel. In addition, in consideration of the possibility of emergency, the self-nursing bed supports automatic CPR and is provided with an evaporative cleaning and sterilizing system on the two manual CPR self-nursing beds, and the system can keep the self-nursing bed in a clean state, improve the comfort of a patient and reduce the nursing intensity of nursing staff.

(4) Qualitas gamma self-care bed: the Japanese Paramount bed company develops a qualitas Gamma self-nursing bed, the design takes the principles of safety, initiative, high efficiency and high quality as the principle, the back lifting, the leg lifting, the height adjustment and the trendelenburg position conversion are realized on the mechanical function, the control mode comprises two types of patient control and nursing personnel control, and the operation is convenient. And the keys are designed to prevent mistaken pressing according to the theory of ergonomics, so that the safety of a user is guaranteed. The special material processing is selected for manufacturing, and the X-ray compatible material can be compatible with X-ray. The foot bed tail plate of the self-nursing bed can be automatically adjusted by sensing the position of the feet of a patient, and in addition, the self-nursing bed is provided with an oxygen inhalation machine, interfaces of a CPR (cardio pulmonary resuscitation) device and an infusion support, and a frame for muscle traction, so that the life safety of the patient is guaranteed as much as possible, and the rehabilitation treatment effect is improved.

(5) Robotibed self-care bed: japan Panasonic company has sent a roboticed, and it is according to the design of ergonomic, lets the bed body can drive the user to sit up and drive out of the bed frame like the wheelchair, prevents the bedsore and has also expanded patient's activity space, and this kind of self-care bed also contains an advanced household electrical appliances controller and screen and the video guardianship equipment of third party simultaneously, and this kind of bed has significantly reduced nursing personnel's working strength.

(6) Multifunctional rehabilitation self-nursing bed robot: the rehabilitation engineering and technology institute of Shanghai university cooperates with enterprises in 2013, and a multifunctional rehabilitation self-nursing bed robot is designed, wherein the self-nursing bed has wheelchair type automatic bed body separation and butt joint functions, and a wheelchair type bed main body has nursing functions of standing, turning over, defecation treatment and the like, and can be used for home barrier-free environmental control.

Accordingly, there is a need for improvements in the art.

Disclosure of Invention

The invention aims to provide a bed-chair integrated device which is efficient and assists the legs and feet to be inconvenient for the elderly to take care of the elderly.

In order to solve the technical problems, the invention provides a bed-chair integrated device for assisting the old with inconvenient legs and feet, which comprises a bed frame, a base, a bed body lifting connecting piece, a short electric push rod, a bed body under-bed lifting connecting piece, a first long electric push rod, a bed body 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;

a first bedstead fixing support, a second bedstead fixing support, a third bedstead fixing support and a fourth bedstead fixing support are sequentially arranged on the lower surface of the bedstead from the head end to the tail end; the lower surface of the bedstead is also provided with a fifth bedstead fixing support, and the fifth bedstead fixing support is positioned on one side of the bedstead, which is close to the tail end;

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

the bed body under-bed lifting connecting piece comprises a bed body under-bed lifting connecting piece first connecting rod, a bed body under-bed lifting connecting piece second connecting rod and a bed body under-bed lifting connecting piece folding rod, the tail end of the bed body under-bed lifting connecting piece first connecting rod is fixedly connected with the middle position of the bed body under-bed lifting connecting piece second connecting rod and the two are mutually vertical, and two ends of the bed body under-bed lifting connecting piece second connecting rod are fixedly connected with the head end of the bed body under-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, the bed body lifting connecting piece rotating shaft and the bed body lifting connecting piece connecting rod are fixedly connected and are mutually vertical, 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 flexion and extension piece comprises a leg flexion and extension piece rotating shaft, a leg flexion and extension piece connecting plate and a leg flexion and extension piece connecting rod, the head end of the leg flexion and extension piece connecting plate is fixedly connected with the leg flexion and extension piece rotating shaft and is mutually vertical, and the leg flexion and extension piece connecting rod is fixedly connected with the leg flexion and extension piece rotating shaft and is mutually vertical;

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

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

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

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

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

a leg connecting piece electromagnetic fixing device is arranged on the second leg connecting piece;

the rotating shaft of the back rising connecting piece is hinged with the middle position of the bedstead; the tail end of a first connecting rod of the back lifting connecting piece is hinged with the head end of a second long electric push rod, and the tail end of the second long electric push rod is hinged with a fifth fixed support 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 placing opening is provided with a chair back fixing piece at a position close to the head end of the placing opening, the chair back fixing piece is provided with a chair back placing rod, and the chair back fixing piece is also provided with a chair back fixing piece fixing device; the placing opening is provided with a handrail supporting rod and a blocking rod at the position close to the tail end of the placing opening, and a bedstead pin hole is formed in one side wall of the bedstead facing the placing opening;

the wheelchair comprises a wheelchair backrest, a wheelchair armrest, a wheelchair cushion, a wheelchair support, a first wheelchair leg part, a second wheelchair leg part, a wheelchair foot part, a wheelchair front wheel and a wheelchair rear wheel;

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

the head end of the wheelchair supporting piece is hinged with the bottom of the wheelchair backrest, and the left side and the right side of the wheelchair supporting piece are hinged with the bottoms of the wheelchair armrests;

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

the head end of the top of the wheelchair armrest is provided with an armrest pin hole, and the armrest pin hole is matched with a bedstead pin hole for use;

the left side wall and the right side wall of the wheelchair backrest are provided with backrest fixing devices, and the backrest fixing devices are matched with the backrest fixing part 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 part, the wheelchair rear wheel is arranged at the head end of the bottom of the wheelchair supporting part,

a first fixing frame of the wheelchair foot part is fixedly arranged at the top of the head end of the wheelchair foot part, and a second fixing frame of the wheelchair foot part is fixedly arranged at the bottom of the head end of the wheelchair foot part;

the tail end of the wheelchair supporting part 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 foot part;

the tail end of the wheelchair supporting piece is fixedly provided with a vertical wheelchair supporting piece fixing frame extending downwards, and the wheelchair supporting piece fixing frame is hinged with the head end of the second wheelchair foot part fixing frame.

As an improvement of the bed-chair integrated device for assisting the old with inconvenient legs and feet, the invention comprises the following steps:

the length of the first fixing frame of the wheelchair foot component is smaller than that of the second fixing frame of the wheelchair foot component, and the wheelchair foot component 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.

a certain included angle is formed between the leg bending and extending piece connecting plate and the leg bending and extending piece connecting rod;

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.

the handrail is all installed to the bedstead both sides, and the handrail is articulated with the bedstead and the junction installs locking bolt.

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 use method of the bed-chair integrated device for assisting the old with inconvenient legs and feet, which comprises the following steps:

1) the bed chair combination comprises:

when the short electric push rod is contracted to the minimum value, the bed body under-bed 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 under-bed lifting connecting piece drives the bed body lifting connecting piece and the bed body lifting second connecting piece folding rod to rotate anticlockwise and synchronously, so that the height of the bed frame is reduced;

the first long electric push rod contracts to the minimum value to drive the leg bending and stretching piece to rotate clockwise until the leg bending and stretching 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 arranged downwards;

the wheelchair is pushed towards the placing opening of the bedstead until the wheelchair supporting piece is abutted against the stop lever, and at the moment, the electromagnetic fixing device of the wheelchair leg component corresponds to the electromagnetic fixing device of the leg connecting piece; the electromagnetic fixing device of the wheelchair leg part and the electromagnetic fixing device of the leg connecting piece are electrified to electromagnetically fix the wheelchair leg part and the leg connecting piece;

the first long electric push rod extends to the maximum value to drive the leg flexion-extension piece to rotate anticlockwise, and the second leg connecting piece rotates anticlockwise along with the first leg flexion-extension piece, so that the first wheelchair leg part is driven to rotate anticlockwise until the leg of the wheelchair is 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 armrest is folded onto the armrest supporting rod, and the bolt penetrates through the armrest pin hole and the bedstead pin hole so as to fix the wheelchair armrest; the wheelchair backrest is folded onto the backrest placing rod, and the wheelchair backrest is fixed through the backrest fixing device and the chair back fixing device; at the moment, the armrests and the wheelchair backrest are both horizontally arranged, and the armrests, the wheelchair backrest, the chair back fixing piece, the bedstead, the chair legs of the wheelchair, the second leg connecting pieces and the foot supporting plates form a plane together;

the short electric push rod extends to the maximum value, the bed body under-bed 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 under-bed 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 is raised; the plane is used as a bed surface;

2) the bed-chair separation comprises:

the electromagnetic fixing device of the wheelchair leg part and the electromagnetic fixing device of the leg connecting piece are powered off to separate the two; the first long electric push rod contracts to the minimum value to drive the leg bending and stretching piece to rotate clockwise until the leg bending and stretching piece connecting plate is vertically arranged;

opening the backrest fixing device and the chair back fixing device to separate the chair back fixing device from the wheelchair backrest; the second long electric push rod extends 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;

when the short electric push rod extends to the minimum value, the bed body under-bed 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 under-bed 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 is raised; the plane is used as a bed surface;

the bolt is pulled out from the handrail pin hole and the bedstead pin hole, and the handrail of the wheelchair is turned upwards until the handrail is vertically arranged; the backrest and the armrest of the wheelchair are fixed through the backrest detachable fixing piece and the armrest detachable fixing piece.

The bed-chair integrated device for assisting the inconvenient legs and feet of the old in full self nursing has the technical advantages that:

1) the design effectively combines the closestool, the self-protection bed and the wheelchair together. The full-automatic pedestal pan can be realized by one key, and the separation of the self-nursing bed and the wheelchair can also be realized by one key.

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

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

4) The bed and chair are separated from each other and automatically reset, so that the bed and chair are safe and convenient and are simple to operate.

5) The use of the toilet bowl changes the process of going to the toilet into a simple button pressing matter, and can complete a plurality of steps including cleaning, drying, deodorizing and the like by only remotely controlling.

The invention is mainly applied to families and hospitals and can be used for caring the old and patients with inconvenient actions. The labor required for caring for them can be reduced while improving their lives. The device can help a patient to do activities such as raising the back, bending and stretching legs and the like to prevent bedsores, can also reduce the times of getting off the bed of the patient, is convenient to clean, reduces nursing intensity, and can also enable the patient to move within a certain range. The invention can lead the old to enjoy the late years and lead the patient to keep good mind. The device is simple to operate and low in hand-in difficulty.

Drawings

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

FIG. 1 is a schematic structural view of the bed and chair combination of the bed and chair integrated device for assisting the disabled legs and feet to perform the self-nursing for the elderly;

FIG. 2 is a schematic structural view of a bed and chair integrated device for assisting the self-nursing of the elderly with the legs and feet;

FIG. 3 is a schematic structural diagram 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 connector 3;

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

FIG. 7 is a schematic structural view of the bed lower lifting connector 5;

FIG. 8 is a schematic structural view of back connector 18;

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

figure 10 is a schematic view of the structure of the wheelchair.

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 the elderly with inconvenient leg and foot care, as shown in fig. 1-10, comprises a bed frame 1, a base 2, a bed body lifting connecting piece 3, a short electric push rod 4, a bed body bed 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.

A first bedstead fixing support 101, a second bedstead fixing support 102, a third bedstead fixing support 103 and a fourth bedstead fixing support 104 are sequentially mounted on the lower surface of the bedstead 1 from the head end to the tail end. The lower surface of the bedstead 1 is further provided with a bedstead fifth fixing support 105, and the bedstead fifth fixing support 105 is positioned on 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 and upwards arranged are sequentially installed on the upper surface of the base 2 from the head end to the tail end.

The bed body bed lower lifting connecting piece 5 comprises a bed body bed lower lifting connecting piece first connecting rod 51, a bed body bed lower lifting connecting piece second connecting rod 52 and a bed body bed lower lifting connecting piece folding rod 53, the tail end of the bed body bed lower lifting connecting piece first connecting rod 51 is fixedly connected with the middle position of the bed body bed lower lifting connecting piece second connecting rod 52 and the two are mutually perpendicular, and the two ends of the bed body bed lower lifting connecting piece second connecting rod 52 are fixedly connected with the head end of the bed body bed lower 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, the bed body lifting connecting piece rotating shaft 301 is fixedly connected with the bed body lifting connecting piece connecting rod 302, the bed body lifting connecting piece rotating shaft and the bed body lifting connecting piece connecting rod 302 are perpendicular to each other, 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 lifting second connecting piece 7 comprises a bed lifting second connecting piece rotating shaft 701 and a bed lifting second connecting piece folding rod 702, and the folding point of the bed lifting second connecting piece folding rod 702 is fixedly connected with the bed lifting second connecting piece rotating shaft 701.

The leg flexion and extension piece 8 comprises a leg flexion and extension piece rotating shaft 801, a leg flexion and extension piece connecting plate 803 and a leg flexion and extension piece connecting rod 802, the head end of the leg flexion and extension piece connecting plate 803 is fixedly connected with and perpendicular to the leg flexion and extension piece rotating shaft 801, the leg flexion and extension piece connecting rod 802 is fixedly connected with and perpendicular to the leg flexion and extension piece rotating shaft 801, and a certain included angle is formed between the leg flexion and extension piece connecting plate 803 and the leg flexion and extension piece 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 this order from the bottom up. 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 horizontally disposed.

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 perpendicular to the back-lifting connecting piece first connecting rod 1802, 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 perpendicular to the back-lifting connecting piece second connecting rod 1803, and a certain included angle is formed between the back-lifting connecting piece first connecting rod 1802 and the back-lifting connecting piece second connecting rod 1803. The head end of the back-up connector second link 1803 extends toward the head end of the frame 1.

The first bedstead fixing support 101 is hinged to the bed body lifting connecting piece rotating shaft 301, 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 first 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 first connecting rod 51.

The bed frame third fixing support 103 is hinged with the bed body lifting second connecting piece rotating shaft 701. The tail end of the bed body bed lower 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 the second base fixing support 202.

The second bedstead fixing support 102 is hinged with the head end of the first long electric push rod 6, the fourth bedstead fixing support 104 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 foot supporting plate connecting rod 901 of the foot supporting plate 9, the second foot supporting plate connecting rod 902 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.

A leg connector electromagnetic fixing means 1011 is mounted on the second leg connector 10.

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 fixing bracket 105 of the bedstead.

Handrails 11 are installed on both sides of the bedstead 1, and the handrails 11 are hinged with the bedstead 1 and the connection part is provided with locking bolts 1101.

The bedstead 1 is a frame structure, and a placing opening 2102 communicated with the tail end of the bedstead 1 is arranged in the bedstead 1. A chair back fixing piece 12 is arranged at the position close to the head end of the placing opening 2102, the chair back fixing piece 12 is arranged at the left side and the right side of the placing opening 2102, a backrest placing 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 placing port 2102 is provided with an armrest support rod 2103 and a stopper rod 2104 at a position near the rear end thereof, and a bed frame pin hole 2105 is formed in a side wall of the bed frame 1 facing the placing port 2102.

The wheelchair includes a wheelchair back 507, a wheelchair armrest 503, a wheelchair seat 502, a wheelchair support 501, a first wheelchair leg 5041, a second wheelchair leg 5042, a wheelchair foot 505, a wheelchair front wheel 5062, and a wheelchair rear wheel 5061.

The first wheelchair leg member 5041, the second wheelchair leg member 5042 and the wheelchair foot member 505 collectively comprise a wheelchair leg.

The wheelchair support 501 is of a frame structure, the head end of the wheelchair support 501 is hinged to the bottom of the wheelchair backrest 507, and the left side and the right side of the wheelchair support 501 are hinged to the bottoms of the wheelchair armrests 503.

The wheelchair backrest 507 is provided with a backrest detachable fixing part 5072 near the bottom, the head end of the top of the wheelchair armrest 503 is provided with an armrest detachable fixing part 5032, and the wheelchair backrest 507 is detachably connected with the wheelchair armrest 503 through the backrest detachable fixing part 5072 and the armrest detachable fixing part 5032.

The head end of the top of the wheelchair armrest 503 is provided with armrest pin holes 5031, and the armrest pin holes 5031 are matched with the bedstead pin holes 2105 for use and fixed through bolts.

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.

A wheelchair leg electromagnetic fixture 50411 is attached to the first wheelchair leg 5041, and the wheelchair leg electromagnetic fixture 50411 is used in cooperation with the leg link electromagnetic fixture 1011.

The wheelchair front wheel 5062 is mounted at the tail end of the bottom of the wheelchair support 501, the wheelchair rear wheel 5061 is mounted 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 guaranteed as much as possible, and the subsequent wheelchair and bed can be conveniently combined.

A first fixing frame 5051 of the wheelchair foot component is fixedly arranged at the top of the head end of the wheelchair foot component 505, and a second fixing frame 5052 of the wheelchair foot component is fixedly arranged at the bottom of the head end of the wheelchair foot component 505. The length of the first wheelchair foot member mount 5051 is less than the length of the second wheelchair foot member mount 5052, ensuring that the wheelchair foot member 505 remains level at all times.

The trailing end of the wheelchair support 501 is hinged to the leading end of a first wheelchair leg 5041, and the trailing end of the first wheelchair leg 5041 is hinged to a first wheelchair foot 5051.

A wheelchair support fixing frame 5021 extending vertically and downwards is fixedly arranged at the tail end of the wheelchair support 501, and the wheelchair support fixing frame 5021 is hinged with the head end of a second wheelchair foot component fixing frame 5052.

The combined using process of the bed and the chair comprises the following steps:

the short electric push rod 4 is contracted to the minimum value, the bed body under-bed 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 under-bed 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 reduced.

The first long electric push rod 6 contracts to the minimum value to drive the leg flexion-extension piece 8 to rotate clockwise until the leg flexion-extension piece connecting plate 803 is vertically arranged;

the second long electric push rod 17 is contracted to the minimum value, so that the back-up connecting piece 18 rotates counterclockwise until the head end of the back-up connecting piece second connecting rod 1803 is arranged obliquely downwards.

The wheelchair is pushed toward the placing port 2102 of the bed frame 1 until the wheelchair support 501 abuts against the stopper rod 2104, and at this time, the electromagnetic fixing device 50411 of the wheelchair leg component corresponds to the electromagnetic fixing device 1011 of the leg connector; the electromagnetic fixing device 50411 of the wheelchair leg component and the electromagnetic fixing device 1011 of the leg connecting piece are electrified, so that the two are electromagnetically fixed;

the first long electric push rod 6 extends to the maximum value to drive the leg flexion-extension piece 8 to rotate anticlockwise, and the second leg connecting piece 10 rotates anticlockwise, so that the first wheelchair leg component 5041 is driven to rotate anticlockwise until the leg of the wheelchair is horizontally arranged.

The backrest detachable fixing piece 5072 and the armrest detachable fixing piece 5032 are opened to separate the wheelchair backrest 507 from the wheelchair armrest 503; the wheelchair armrest 503 is folded over the armrest support rod 2103, and the pin passes through the armrest pin hole 5031 and the bedstead pin hole 2105 to fix the wheelchair armrest 503; folding the wheelchair backrest 507 over the backrest placement rod 2106, and fixing the wheelchair backrest 507 by the backrest fixing means 5071 and the backrest fixing means 1211; at this time, the armrest 503 and the wheelchair backrest 507 are both horizontally arranged, and the armrest 503, the wheelchair backrest 507, the backrest fixing member 12, the bed frame 1, the wheelchair legs, the second leg connecting member 10 and the leg supporting plate 9 form a plane together.

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

The use process of the bed-chair separation of the invention comprises:

The electromagnetic fixing device 50411 of the wheelchair leg component and the electromagnetic fixing device 1011 of the leg connecting piece are powered off, so that the two are separated; the first long electric push rod 6 contracts to the minimum value to drive the leg flexion-extension piece 8 to rotate clockwise until the leg flexion-extension piece connecting plate 803 is vertically arranged;

opening the back fixture 5071 and the back fixture 1211 to separate the back fixture 12 from the wheelchair back 507; the second long electric push rod 17 extends to the maximum value, so that the back-up connecting piece 18 rotates clockwise, and the back-up 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 extends to the minimum value, pulls the bed body bed lifting connecting piece 5 to move towards the tail end, drives the bed body lifting second connecting piece folding rod 702 of the bed body lifting second connecting piece 7 to rotate clockwise, and simultaneously the bed body bed lifting connecting piece 5 drives the bed body lifting connecting piece 3 to rotate clockwise synchronously with the bed body lifting second connecting piece folding rod 702, so that the height of the bed frame 1 is raised. The plane is used as a bed surface.

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

The bed and chair separation is completed.

Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.

Claims

1. The utility model provides an integrative device of bed chair of inconvenient old man of supplementary leg foot which characterized in that: comprises a bedstead (1), a base (2), a bed body lifting connecting piece (3), a short electric push rod (4), a bed body under-bed 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;

a first bedstead fixing support (101), a second bedstead fixing support (102), a third bedstead fixing support (103) and a fourth bedstead fixing support (104) are sequentially arranged on the lower surface of the bedstead (1) from the head end to the tail end; the lower surface of the bedstead (1) is also provided with a fifth bedstead fixing support (105), and the fifth bedstead fixing support (105) is positioned on 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 and upwards arranged are sequentially installed on the upper surface of the base (2) from the head end to the tail end;

the bed body bed lower lifting connecting piece (5) comprises a bed body bed lower lifting connecting piece first connecting rod (51), a bed body bed lower lifting connecting piece second connecting rod (52) and a bed body bed lower lifting connecting piece folding rod (53), the tail end of the bed body bed lower lifting connecting piece first connecting rod (51) is fixedly connected with the middle position of the bed body bed lower lifting connecting piece second connecting rod (52) and the two ends are mutually vertical, and the two ends of the bed body bed lower lifting connecting piece second connecting rod (52) are fixedly connected with the head end of the bed body bed lower 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), the bed body lifting connecting piece rotating shaft (301) is fixedly connected with the bed body lifting connecting piece connecting rod (302) and 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 flexion and extension piece (8) comprises a leg flexion and extension piece rotating shaft (801), a leg flexion and extension piece connecting plate (803) and a leg flexion and extension piece connecting rod (802), the head end of the leg flexion and extension piece connecting plate (803) is fixedly connected with the leg flexion and extension piece rotating shaft (801) and is mutually vertical, and the leg flexion and extension piece connecting rod (802) is fixedly connected with the leg flexion and extension piece rotating shaft (801) and is mutually vertical;

the foot supporting plate (9) is sequentially provided with a foot supporting plate first connecting rod (901) and a foot supporting plate second 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 vertical, 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 vertical, 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 first fixing support (101) is hinged with a bed body lifting connecting piece rotating shaft (301), a bed body lifting connecting piece connecting rod (302) is hinged with a first base fixing support (201), one end of a bed body lifting connecting piece folding rod (303) is hinged with the head end of a short electric push rod (4), the other end of the bed body lifting connecting piece folding rod (303) is hinged with the head end of a bed body bed lower lifting connecting piece first connecting rod (51), and the tail end of the short electric push rod (4) is hinged with the tail end of the bed body bed lower lifting connecting piece first connecting rod (51);

the bed frame third fixed support (103) is hinged with the bed body lifting second connecting piece rotating shaft (701); the tail end of a bed body bed lower 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 support (202);

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

a leg connecting piece electromagnetic fixing device (1011) is arranged on the second leg connecting piece (10);

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 fixing support (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 (1) is formed in the bed frame; a chair back fixing piece (12) is arranged at the position of the placing opening (2102) close to the head end of the placing opening, a backrest placing rod (2106) is arranged on the chair back fixing piece (12), and a chair back fixing piece fixing device (1211) is also arranged on the chair back fixing piece (12); the placing opening (2102) is provided with an armrest support rod (2103) and a baffle rod (2104) at a position close to the tail end of the placing opening, and a bedstead pin hole (2105) is formed in one side wall of the bedstead (1) facing the placing opening (2102);

the wheelchair is matched with the bedstead (1) for use

A certain included angle is formed between the leg flexion and extension piece connecting plate (803) and the leg flexion and extension piece connecting rod (802);

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

2. The device of claim 1 for assisting the elderly with handicapped legs and feet, comprising:

the wheelchair comprises a wheelchair backrest (507), a wheelchair armrest (503), a wheelchair cushion (502), a wheelchair support (501), a first wheelchair leg (5041), a second wheelchair leg (5042), a wheelchair foot (505), a wheelchair front wheel (5062) and a wheelchair rear wheel (5061);

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

the wheelchair supporting piece (501) is of a frame structure, the head end of the wheelchair supporting piece (501) is hinged to the bottom of the wheelchair backrest (507), and the left side and the right side of the wheelchair supporting piece (501) are hinged to the bottoms of the wheelchair armrests (503);

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 front end of the top of the wheelchair armrest (503) is provided with an armrest pin hole (5031), and the armrest pin hole (5031) is matched with a bedstead pin hole (2105) for use;

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 part fixing devices (1211) for use;

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) for use;

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),

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

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

a wheelchair supporting part fixing frame (5021) which extends vertically and downwards is fixedly arranged at the tail end of the wheelchair supporting part (501), and the wheelchair supporting part fixing frame (5021) is hinged with the head end of a second fixing frame (5052) of the wheelchair foot part.

3. The device of claim 2, which is used as a bed and chair for the elderly with the leg and foot inconvenient, wherein:

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

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

4. The device of claim 3 for assisting the elderly with handicapped legs and feet, comprising:

the novel bed is characterized in that handrails (11) are installed on two sides of the bed frame (1), the handrails (11) are hinged with the bed frame (1), and locking bolts (1101) are installed at the connecting positions of the handrails (11) and the bed frame (1).

5. The device of claim 4 for assisting the elderly with handicapped legs and feet, comprising:

the wheelchair rear wheel (5061) is larger in diameter than the wheelchair front wheel (5062).

6. A method of using a bed-chair integrated device for assisting an elderly person with handicapped legs, which uses the bed-chair integrated device for assisting an elderly person with handicapped legs according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:

1) the bed chair combination comprises:

when the short electric push rod (4) is contracted to the minimum value, the bed body under-bed 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, and meanwhile, the bed body under-bed lifting connecting piece (5) drives the bed body lifting connecting piece (3) and the bed body lifting second connecting piece folding rod (702) to synchronously rotate anticlockwise, so that the height of the bed frame (1) is reduced;

the first long electric push rod (6) contracts to the minimum value to drive the leg bending and stretching piece (8) to rotate clockwise until the leg bending and stretching 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 arranged downwards;

the wheelchair is pushed towards the placing opening (2102) of the bedstead (1) until the wheelchair supporting piece (501) is abutted with the blocking rod (2104), and at the moment, the electromagnetic fixing device (50411) of the wheelchair leg component corresponds to the electromagnetic fixing device (1011) of the leg connecting piece; the electromagnetic fixing device (50411) of the wheelchair leg component and the electromagnetic fixing device (1011) of the leg connecting piece are electrified, so that the two are electromagnetically fixed;

the first long electric push rod (6) extends to the maximum value to drive the leg bending and extending 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 part (5041) is driven to rotate anticlockwise until the leg of the wheelchair is horizontally arranged;

opening the backrest detachable fixing piece (5072) and the armrest detachable fixing piece (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 a bolt passing through the armrest pin hole (5031) and the bedstead pin hole (2105); turning over the wheelchair backrest (507) onto the backrest placing rod (2106), and fixing the wheelchair backrest (507) through a backrest fixing device (5071) and a backrest fixing part fixing device (1211); at the moment, the armrests (503) and the wheelchair backrest (507) are both horizontally arranged, and the armrests (503), the wheelchair backrest (507), the chair back fixing piece (12), the bedstead (1), the chair legs of the wheelchair, the second leg connecting pieces (10) and the leg supporting plates (9) jointly form a plane;

the short electric push rod (4) extends to the maximum value, the bed body under-bed 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 under-bed 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) is increased; the plane is used as a bed surface;

2) the bed-chair separation comprises:

the electromagnetic fixing device (50411) of the wheelchair leg component and the electromagnetic fixing device (1011) of the leg connecting piece are powered off, so that the wheelchair leg component and the leg connecting piece are separated; the first long electric push rod (6) contracts to the minimum value to drive the leg bending and stretching piece (8) to rotate clockwise until the leg bending and stretching piece connecting plate (803) is vertically arranged;

opening the backrest fixture (5071) and the back fixture (1211) such that the back fixture (12) is separated from the wheelchair backrest (507); the second long electric push rod (17) extends to the maximum value, so that the back lifting connecting piece (18) rotates clockwise, and the back lifting connecting piece (18) is abutted against 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) extends to the minimum value, the bed body under-bed 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 under-bed 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) is increased; the plane is used as a bed surface;

the bolt is pulled out from the armrest pin hole (5031) and the bedstead pin hole (2105), and the wheelchair armrest (503) is turned upwards until the wheelchair armrest is vertically arranged; the backrest (507) and the armrest (503) of the wheelchair are fixed by the backrest detachable fixing piece (5072) and the armrest detachable fixing piece (5032).