CN113143629B - Bed-chair integrated device for assisting old people with inconvenient legs and feet and use method - Google Patents

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 the patient to do activities such as back lifting, leg bending and stretching and the like to prevent bedsore, can also reduce the times of getting off the bed of the patient, is convenient to clean, lightens nursing intensity, and can also allow the patient to move in a certain range.

Description

A bed-chair integrated device for assisting the elderly with handicapped legs and feet and its use method

technical field

The invention relates to a nursing appliance, in particular to a bed-chair integrated device for assisting elderly people with handicapped legs and a use method thereof.

Background technique

Self-care beds are a nursing product invented for the convenience of taking care of the disabled. At present, in related domestic enterprises and research institutes, research on the mechanical functions of self-care beds has been basically perfected, not weaker than in Europe and the United States and other countries. What is missing is intelligent control technology, human-computer interaction and sensor fusion technology. The lack of these key technologies has led to highly intelligent self-care bed technology being only in the hands of developed countries. However, it is difficult to find highly intelligent self-care beds in the domestic market or the price is unaffordable for most families in need. Self-care beds are very important for patients and families. It is very important to enhance nursing capabilities, reduce the burden on families and society, and help patients as soon as possible. return to society. 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, and can intelligently assist the patient to defecate, which is convenient for cleaning and reduces the intensity of nursing. Under normal circumstances, daily nursing tasks such as getting up, outdoor rehabilitation, bed conversion between departments, cleaning, and convenience are completed, which greatly reduces the labor intensity of nursing staff and improves work efficiency. At the same time, it reduces the psychological burden of the nursing staff and increases their comfort.

From a technical point of view, the current domestic R & D focus is more on the design based on Chinese ergonomics, while the development of self-care bed products by foreign companies includes technology, intelligence and other aspects. In addition, only a few enterprises in developed countries have developed and produced high-end intelligent self-care beds in large quantities, such as Stryker Medical Company in the United States, ArjoHuntleigh Company under GetingeAB Group in Sweden, and Paramountbed Company in Japan. Most of the high-intelligence self-care beds in China are still in the laboratory stage, such as the bed-chair integrated service robot of Beijing University of Aeronautics and Astronautics, and the multi-functional rehabilitation self-care bed robot of Shanghai University of Technology. The following describes several representative intelligent self-care beds and technical parameters.

(1) InTouch self-care bed: American Stryker Medical Company has developed an InTouch self-care bed. In addition to the functions of ordinary self-care beds such as lifting and lowering safety guardrails, it uniquely integrates clinical phrases that can be played in 24 languages, which is convenient Diagnose and treat patients from various countries, and can record the weight change chart of up to 50 patients, and nurses can adjust the nursing plan accordingly to help patients as much as possible. The self-care bed can also customize automatic cleaning and timing turning over to change the patient's position. The built-in pressure sore assessment scale BradenScale is convenient for doctors and nursing staff to understand the patient's condition and customize different rehabilitation plans. It can also play music and beautiful sounds from nature to relieve the stress of patients. Data synchronization can be realized by using the InTouch self-care bed in the ICU ward.

(2) TotalcareP500 self-care bed: The US Hill-rom company has developed a TotalcareP500 self-care bed, which supports functions such as lying flat, back lifting, and standing in structure, and integrates the Microclimate system developed by the company. Its digital functions include recording and storing information of multiple patients, and being able to detect pressure, temperature, friction and other information in the four areas of the bed surface, based on the patient's weight as a reference, to intelligently dry and dissipate the high-risk areas of bedsores treatment, reducing the possibility of decubitus, and this self-care bed supports hands-free CPR and 20 ° Trendelenburg position one-button conversion and reset, one-button alarm and other emergency rescue functions to protect the lives of users Safety.

(3) Enterprise9000 self-care bed: ArjoHuntleigh, Sweden has developed an Enterprise9000 self-care bed, which has very convenient self-cleaning and sterilization capabilities. All components of this self-care bed are modularized and can be disassembled and replaced for easy maintenance. This body care bed can measure the recorder's weight more accurately, the error is within 500g, and the maximum load capacity is 250kg. It can electrically adjust the height, inclination, back lifting, knee bending, leg raising and other functions of the bed surface. And these changing angle values can be displayed on the control board in digital form. In addition, considering the possibility of emergencies, this self-care bed supports automatic CPR and manual CPR on both sides. The self-care bed has an evaporative cleaning and sterilization system. This system can keep the self-care bed clean and improve the comfort of patients It also reduces the nursing intensity of nursing staff.

(4) QualitasGamma self-care bed: Japan's PARAMOUNTBED company has developed a QualitasGamma self-care bed. The design is based on the principles of safety, initiative, high efficiency, and high quality. The Deborahn can change the supine position, and the control methods include patient control and nursing staff control, and the operation is convenient. And according to the theory of ergonomics, all the keys have anti-mispress design to ensure the safety of users. Special materials are selected for processing, which can be compatible with X-rays. The foot board of this self-care bed can be automatically adjusted by sensing the position of the patient's feet. In addition, this self-care bed has interfaces for oxygen inhalers, CPR, and infusion stands, and a rack for muscle traction is also attached to ensure as much protection as possible. The life safety of the patient and improve the effect of rehabilitation treatment.

(5) Roboticbed self-care bed: Japan's Panasonic company has released a Roboticbed, which is designed according to ergonomics, so that the bed can drive the user to sit up and open the bed frame like a wheelchair, preventing bedsores and expanding the patient's life. At the same time, this self-care bed also contains an advanced home appliance controller and screen as well as third-party video monitoring equipment, which greatly reduces the work intensity of the nurses.

(6) Multifunctional rehabilitation self-care bed robot: In 2013, the Institute of Rehabilitation Engineering and Technology of Shanghai University of Science and Technology cooperated with enterprises to design a multifunctional rehabilitation self-care bed robot. This self-care bed has wheelchair-type automatic bed separation , Docking function, the main body of the wheelchair-type bed has nursing functions such as standing, turning over, urinating and defecating, and can control the barrier-free environment at home.

Therefore, it is necessary to improve the prior art.

Contents of the invention

The technical problem to be solved by the present invention is to provide an efficient bed-chair integrated device for assisting the self-care of the elderly with handicapped legs.

In order to solve the above technical problems, the present invention provides an integrated bed and chair device for assisting the elderly with handicapped legs, including a bed frame, a base, a bed lifting connector, a short electric push rod, a bed lifting connector, the first long electric push rod Rod, bed lift second connector, leg flexion and extension, foot support plate, second long electric push rod, back-lifting connector and wheelchair;

The lower surface of the bed frame is sequentially installed with the first fixed bracket of the bed frame, the second fixed bracket of the bed frame, the third fixed bracket of the bed frame and the fourth fixed bracket of the bed frame from the head end to the tail end; The fifth fixed bracket of the bed frame is installed, and the fifth fixed bracket of the bed frame is located on the side near the end of the bed frame;

Four rollers are installed on the bottom of the base, and the upper surface of the base is sequentially installed with a first base fixing bracket and a second base fixing bracket arranged vertically upward from the head end to the tail end;

The bed lifting connector includes the first connecting rod of the bed lifting connector, the second connecting rod of the bed lifting connector and the folding rod of the bed lifting connector, the first connecting rod of the bed lifting connector The tail end is fixedly connected to the middle position of the second connecting rod of the lifting connector under the bed body and the two are perpendicular to each other, and the two ends of the second connecting rod of the lifting connector under the bed body are fixedly connected to the first end of the folding rod of the lifting connector under the bed body ;

The bed lifting connector includes a bed lifting connector shaft, a bed lifting connector connecting rod and a bed lifting connector folding rod, the bed lifting connector rotating shaft is fixedly connected to the bed lifting connector connecting rod and both are perpendicular to each other, and the inflection point of the folding rod of the bed lifting connector is fixedly connected with the rotating shaft of the bed lifting connector;

The second bed lifting connector includes a rotating shaft of the second bed lifting connector and a folding rod of the second bed lifting connector. The shaft is fixedly connected;

The leg flexors and extensions include the shafts of the leg flexors and extensions, the connecting plates of the leg flexors and extensions and the connecting rods of the leg flexors and extensions. The connecting rod of the leg is fixedly connected with the rotating shaft of the flexion and extension part of the leg and is perpendicular to each other;

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 connector includes a back-lifting connector shaft, a first connecting rod of the back-lifting connector and a second connecting rod of the back-lifting connector, the head end of the first link of the back-lifting connector is fixedly connected to the rotating shaft of the back-lifting connector are perpendicular to each other, the tail end of the second link of the back-lifting connector is fixedly connected with the rotating shaft of the back-lifting connector and is perpendicular to each other, and the head end of the second link of the back-lifting connector extends toward the head end of the bed frame;

The first fixed bracket of the bed frame is hinged with the rotating shaft of the bed lifting connector, the connecting rod of the bed lifting connector is hinged with the first base fixing bracket, and one end of the folding rod of the bed lifting connector is hinged with the head end of the short electric push rod. The other end of the folding rod of the body lifting connector is hinged with the head end of the first connecting rod of the lifting connector under 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 lifting connector under the bed body;

The third fixed bracket of the bed frame is hinged with the rotating shaft of the second bed lifting connector; The other end of the folding rod is hinged to the second base fixing bracket;

The second fixed bracket of the bed frame is hinged to the head end of the first long electric push rod, the fourth fixed bracket of the bed frame is hinged to the shaft of the leg flexor and extension member, and the tail end of the first long electric push rod is hinged to the connecting rod of the leg flexor and extension member. The tail end of the connecting plate of the leg flexion and extension part 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 part, and the head end of the second leg connecting part is connected with the The end of the bed frame is hinged;

An electromagnetic fixing device for leg connectors is installed on the second leg connectors;

The rotating shaft of the back-lifting connector is hinged with the middle position of the bed frame; the tail end of the first connecting rod of the back-lifting connector is hinged with the first end of the second long electric push rod, and the tail end of the second long electric push rod is connected with the fifth fixed bracket of the bed frame hinged;

The bed frame is a frame structure, and the bed frame is provided with a placement opening connected to its tail end; the placement opening is equipped with a seat back fixing part near its head end, and a backrest placement rod is installed on the seat back fixing part, and the seat back is fixed There is also a fixing device for the back of the seat on the part; a handrail support rod and a gear bar are installed near the tail end of the placement port, and a bed frame pin hole is provided on the side wall facing the placement port on the bed frame;

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

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

The wheelchair support is a frame structure, the head end of the wheelchair support is hinged to the bottom of the wheelchair backrest, and the left and right sides of the wheelchair support are hinged to the bottom of the wheelchair armrest;

The wheelchair backrest is provided with a backrest detachable fixing part near the bottom, and the top end 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 top end of the wheelchair armrest is provided with an armrest pin hole, and the armrest pin hole is used in conjunction with the bed frame pin hole;

The left and right side walls of the backrest of the wheelchair are provided with a backrest fixing device, and the backrest fixing device is used in conjunction with the chair back fixing member fixing device;

The first wheelchair leg part is equipped with an electromagnetic fixing device for the wheelchair leg part, and the electromagnetic fixing device for the wheelchair leg part is used in conjunction with the electromagnetic fixing device for the leg connector;

The front wheel of the wheelchair is installed at the tail end of the bottom of the wheelchair support, and the rear wheel of the wheelchair is installed at the head end of the bottom of the wheelchair support.

The top of the first end of the wheelchair foot part is fixedly provided with a first fixed frame of the wheelchair foot part, and the bottom of the head end of the wheelchair foot part is fixedly provided with a second fixed frame of the wheelchair foot part;

The tail end of the wheelchair support is hinged to the head end of the first wheelchair leg part, and the tail end of the first wheelchair leg part is hinged to the first fixing frame of the wheelchair foot part;

The tail end of the wheelchair support is fixedly provided with a wheelchair support fixing frame extending vertically downward, and the wheelchair support fixing frame is hinged to the first end of the second fixing frame of the wheelchair foot part.

As an improvement to a bed-chair integrated device for assisting elderly people with handicapped legs and feet according to the present invention:

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

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

As an improvement to a bed-chair integrated device for assisting elderly people with handicapped legs and feet according to the present invention:

There is a certain angle between the connecting plate of the leg flexor and extension member and the connecting rod of the leg flexor and extension member;

There is a certain angle between the first link of the back-lifting connector and the second link of the back-lifting connector.

As an improvement to a bed-chair integrated device for assisting elderly people with handicapped legs and feet according to the present invention:

Handrails are installed on both sides of the bed frame, and the armrests are hinged with the bed frame and locking bolts are installed at the joints.

As an improvement to a bed-chair integrated device for assisting elderly people with handicapped legs and feet according to the present invention:

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

The present invention also provides a method for using an integrated bed and chair device for assisting elderly people with handicapped legs, including the following steps:

1) The combination of bed and chair includes:

The short electric push rod shrinks to the minimum value, and pulls the lifting and lowering connecting piece under the bed body to move to the head end, driving the folding rod of the second lifting and lowering connecting piece of the second connecting piece of the bed body to rotate counterclockwise, and at the same time, the lifting and lowering connecting piece under the bed body Drive the bed lifting connecting piece and the folding rod of the bed lifting second connecting piece to rotate counterclockwise synchronously, so that the height of the bed frame will drop;

The first long electric push rod shrinks to the minimum value, and drives the leg flexion and extension piece to rotate clockwise until the leg flexion and extension piece connecting plate is vertically set;

The second long electric push rod shrinks to the minimum value, so that the back-lifting connecting piece rotates counterclockwise until the head end of the second connecting rod of the back-lifting connecting piece is set obliquely downward;

The wheelchair is pushed toward the opening of the bed frame until the wheelchair support and the gear bar are in contact. At this time, the electromagnetic fixing device of the wheelchair leg part corresponds to the electromagnetic fixing device of the leg connecting part; the electromagnetic fixing device of the wheelchair leg part is connected with the leg The electromagnetic fixing device of the piece is energized, so that the two are electromagnetically fixed;

The first long electric push rod is stretched to the maximum value, driving the leg flexion and extension parts to rotate counterclockwise, and the second leg connecting part accordingly rotates counterclockwise, thereby driving the first wheelchair leg parts to rotate counterclockwise until the legs of the wheelchair until the level is set;

Open the detachable fixing part of the backrest and the detachable fixing part of the armrest to separate the backrest of the wheelchair from the armrest of the wheelchair; fold the armrest of the wheelchair onto the armrest support rod, and pass the pin through the pin hole of the armrest and the pin hole of the bed frame to fix the armrest of the wheelchair; The wheelchair backrest is folded onto the backrest placement rod, and the wheelchair backrest is fixed by the backrest fixing device and the chair back fixing member fixing device; The chair feet of the wheelchair, the second leg connector and the foot support plate together form a plane;

The short electric push rod is stretched to the maximum value, pulling the lifting connector under the bed body to move to the tail end, driving the folding rod of the second connector of the bed lifting second connector to rotate clockwise, and at the same time, the lowering of the bed body The connecting piece drives the bed lifting connecting piece and the folding rod of the bed lifting second connecting piece to rotate clockwise synchronously, so that the height of the bed frame rises; the plane serves as the bed surface;

2), bed and chair separation includes:

The short electric push rod shrinks to the minimum value, and pulls the lifting and lowering connecting piece under the bed body to move to the head end, driving the folding rod of the second lifting and lowering connecting piece of the second connecting piece of the bed body to rotate counterclockwise, and at the same time, the lifting and lowering connecting piece under the bed body Drive the bed lifting connecting piece and the folding rod of the bed lifting second connecting piece to rotate counterclockwise synchronously, so that the height of the bed frame will drop;

The electromagnetic fixing device of the wheelchair leg part and the electromagnetic fixing device of the leg connecting part are powered off to separate the two; the first long electric push rod shrinks to the minimum value, driving the leg flexion and extension parts to rotate clockwise until the leg flexion and extension parts connect the plate until vertically set;

Open the backrest fixing device and the backrest fixing part fixing device, so that the backrest fixing part is separated from the wheelchair backrest; the second longest electric push rod is extended to the maximum value, so that the backrest connecting part rotates clockwise, and the backrest connecting part and the wheelchair backrest After abutting, drive them to rotate together until the backrest of the wheelchair is nearly vertically set;

The first long electric push rod shrinks to the minimum value, and drives the leg flexion and extension piece to rotate clockwise until the leg flexion and extension piece connecting plate is vertically set;

The second long electric push rod shrinks to the minimum value, so that the back-lifting connecting piece rotates counterclockwise until the head end of the second connecting rod of the back-lifting connecting piece is set obliquely downward;

The wheelchair is pushed toward the opening of the bed frame until the wheelchair support and the gear bar are in contact. At this time, the electromagnetic fixing device of the wheelchair leg part corresponds to the electromagnetic fixing device of the leg connecting part; the electromagnetic fixing device of the wheelchair leg part is connected with the leg The electromagnetic fixing device of the piece is energized, so that the two are electromagnetically fixed;

The first long electric push rod is stretched to the maximum value, driving the leg flexion and extension parts to rotate counterclockwise, and the second leg connecting part accordingly rotates counterclockwise, thereby driving the first wheelchair leg parts to rotate counterclockwise until the legs of the wheelchair until the level is set;

Open the detachable fixing part of the backrest and the detachable fixing part of the armrest to separate the backrest of the wheelchair from the armrest of the wheelchair; fold the armrest of the wheelchair onto the armrest support rod, and pass the pin through the pin hole of the armrest and the pin hole of the bed frame to fix the armrest of the wheelchair; The wheelchair backrest is folded onto the backrest placement rod, and the wheelchair backrest is fixed by the backrest fixing device and the chair back fixing member fixing device; The chair feet of the wheelchair, the second leg connector and the foot support plate together form a plane;

The short electric push rod is stretched to the minimum value, pulling the lifting connector under the bed body to move to the tail end, driving the folding rod of the second connector of the bed lifting second connecting part to rotate clockwise, and at the same time, the lowering of the bed body The connecting piece drives the bed lifting connecting piece and the folding rod of the bed lifting second connecting piece to rotate clockwise synchronously, so that the height of the bed frame rises; the plane serves as the bed surface;

Pull out the pin from the pin hole of the armrest and the pin hole of the bed frame, and fold up the armrest of the wheelchair until it is vertically set; fix the backrest of the wheelchair and the armrest of the wheelchair through the detachable fixing part of the backrest and the detachable fixing part of the armrest.

The technical advantages of the bed and chair integrated device for assisting the self-care of the elderly with handicapped legs and feet in the present invention are as follows:

1) This design effectively combines toilet, self-care bed and wheelchair. It can realize the function of fully automatic toilet sitting with one button, and can also realize the separation of self-care bed and wheelchair with one button.

2), This design adds an embedded wheelchair on the basis of the self-care bed, which can realize the separation of the bed and the wheelchair with one button. It facilitates the activities of the elderly and patients with limited mobility. Simplify the complex process of moving a patient from bed to wheelchair.

3), the vacuum toilet greatly reduces the use of water in the process of flushing.

4) The bed and chair are separated and automatically reset, which is safe, convenient and easy to operate.

5) The use of the toilet turns the process of going to the toilet into a simple matter of pressing a button, and multiple steps including cleaning, drying, and deodorization can be completed with just one remote control.

The invention is mainly used in families and hospitals, and can be used to take care of the elderly and patients with handicap. While improving their lives, it can reduce the labor required to care for them. The device can help patients do activities such as back bending and stretching to prevent bedsores, and can also reduce the number of times patients get out of bed, facilitate cleaning, reduce nursing intensity, and allow patients to perform activities within a certain range. The invention can allow the elderly to enjoy their old age peacefully and keep the patients in a good state of mind. The device is easy to operate and less difficult to use.

Description of drawings

The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of the bed-chair integrated device of the present invention assisting the full self-care of the elderly with inconvenient legs and feet;

Fig. 2 is a structural schematic view of the bed-chair integrated device for assisting the self-care of the elderly with inconvenient legs and feet when the bed surface is formed;

Fig. 3 is the structural representation of bed body;

Fig. 4 is the structural representation of bed frame 1;

Fig. 5 is a schematic structural view of the bed lifting connector 3;

Fig. 6 is a schematic structural view of the leg flexor and extension member 8;

Fig. 7 is a structural schematic diagram of the lifting connector 5 under the bed body;

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

Fig. 9 is a schematic structural view of the second bed body lifting connector 7;

Fig. 10 is a structural schematic diagram of the wheelchair.

Detailed ways

The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

Embodiment 1. An integrated bed and chair device for assisting the self-care of the elderly with inconvenient legs and feet, as shown in Figure 1-10, including a bed frame 1, a base 2, a bed lifting connector 3, a short electric push rod 4, and a bed lifting under the bed Connector 5, first long electric push rod 6, bed lifting second connector 7, leg flexion and extension part 8, foot support plate 9, second long electric push rod 17, back connector 18 and wheelchair.

The bed frame 1 lower surface is successively installed with the first fixed support 101 of the bed frame, the second fixed support 102 of the bed frame, the third fixed support 103 of the bed frame and the fourth fixed support 104 of the bed frame from the head end to the tail end. The bottom surface of the bed frame 1 is also equipped with the fifth fixed bracket 105 of the bed frame, and the fifth fixed bracket 105 of the bed frame is located at the side of the bed frame 1 near the tail end.

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

The lifting connector 5 under the bed body bed includes the first connecting rod 51 of the lifting connector 51 under the bed body, the second connecting rod 52 of the lifting connector 52 under the bed body and the folding rod 53 of the lifting connector 53 under the bed body bed, and the first lifting connector 53 of the lifting connector under the bed body bed. The tail end of the connecting rod 51 is fixedly connected with the middle position of the second connecting rod 52 of the lifting connector 52 under the bed body bed and the two are perpendicular to each other. The head end of the rod 53 is fixedly connected.

The bed body lifting connector 3 comprises the bed body lifting connector rotating shaft 301, the bed body lifting connector connecting rod 302 and the bed body lifting connector folding rod 303, the bed body lifting connector rotating shaft 301 is fixed with the bed body lifting connector connecting rod 302 They are connected and the two are perpendicular to each other, and the inflection point of the folding rod 303 of the bed lifting connector is fixedly connected with the rotating shaft 301 of the bed lifting connector.

The second bed lifting connector 7 includes a second bed lifting second connecting piece rotating shaft 701 and a bed lifting second connecting piece folding rod 702. The connecting member rotating shaft 701 is fixedly connected.

The leg flexion and extension piece 8 includes the leg flexion and extension piece rotating shaft 801, the leg flexion and extension piece connecting plate 803 and the 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 perpendicular to each other , the connecting rod 802 of the leg flexor and extension member is fixedly connected with the rotating shaft 801 of the leg flexor and extension member and is perpendicular to each other, and there is a certain angle between the leg flexor and extension member connecting plate 803 and the leg flexor and extension member connecting rod 802 .

The foot support plate 9 is sequentially provided with a first foot support plate link 901 and a foot support plate second link 902 from bottom to top. The length of the first link 901 of the foot support plate is greater than the length of the second link 902 of the foot support plate, so as to ensure that the foot support plate 9 is always arranged horizontally.

The back link 18 includes a back link shaft 1801, a first link 1802 of the back link and a second link 1803 of the back link. The first link 1802 of the back link is connected to the back link shaft. 1801 are fixedly connected and perpendicular to each other, the tail end of the second link 1803 of the back-lifting connector is fixedly connected with the rotating shaft 1801 of the back-lifting connector and are perpendicular to each other, the first link 1802 of the back-lifting connector and the second link 1803 of the back-lifting connector There is a certain angle between them. The head end of the second connecting rod 1803 of the back-lifting connector extends toward the head end of the bed frame 1 .

The first fixed bracket 101 of the bed frame is hinged with the rotating shaft 301 of the bed lifting connector, the connecting rod 302 of the bed lifting connector is hinged with the first base fixing bracket 201, one end of the folding rod 303 of the bed lifting connector is connected with 4 short electric push rods The ends are hinged, the other end of the folding rod 303 of the bed lifting connector is hinged with the first end of the first connecting rod 51 of the lifting connector under the bed, and the tail end of the short electric push rod 4 is connected with the first connecting rod 51 of the lifting connector under the bed. End hinged.

The third fixed bracket 103 of the bed frame is hinged to the rotating shaft 701 of the second connecting piece for lifting the bed body. The tail end of the lifting connector folding rod 53 under the bed body is hinged with one end of the second lifting connector folding rod 702 of the bed body, and the other end of the second connecting part folding rod 702 of the bed body is hinged with the second base fixed bracket 202 .

The second fixed bracket 102 of the bed frame is hinged with the head end of the first long electric push rod 6, the fourth fixed bracket 104 of the bed frame is hinged with the rotating shaft 801 of the leg flexor and extension member, and the tail end of the first long electric push rod 6 is connected with the leg flexor and extension member. The rod 802 is hinged, the tail end of the leg flexion and extension member connecting plate 803 is hinged with the first connecting rod 901 of the foot support plate 9, the second connecting rod 902 of the foot support plate is hinged with the tail end of the second leg connector 10 , the head end of the second leg connector 10 is hinged to the tail end of the bed frame 1 .

An electromagnetic fixing device 1011 for the leg connector is installed on the second leg connector 10 .

The rotating shaft 1801 of the back-lifting connector is hinged to the middle position of the bed frame 1 . The tail end of the first connecting rod 1802 of the back-lifting connector 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 bed frame.

Handrails 11 are installed on both sides of the bed frame 1, and the armrests 11 are hinged with the bed frame 1 and locking bolts 1101 are installed at the joints.

The bed frame 1 is a frame structure, and the bed frame 1 is provided with a placement opening 2102 communicating with its tail end. The placement port 2102 is provided with a seat back fixing part 12 near its head end, and the seat back fixing part 12 is positioned at the left and right sides of the placement port 2102. The chair back fixing part fixing device 1211 is provided; the placement port 2102 is equipped with an armrest support rod 2103 and a gear bar 2104 near its tail end, and the bed frame 1 is also provided with a bed frame pin on the side wall facing the placement port 2102 Hole 2105.

The wheelchair comprises a wheelchair back 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, a wheelchair front wheel 5062 and a wheelchair rear wheel 5061.

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

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

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

The top end of the wheelchair armrest 503 is provided with an armrest pin hole 5031, and the armrest pin hole 5031 is used in conjunction with the bed frame pin hole 2105, and is fixed by a latch.

The left and right side walls of the wheelchair backrest 507 are provided with a backrest fixing device 5071, and the backrest fixing device 5071 is used in conjunction with the chair back fixing member fixing device 1211.

The first wheelchair leg part 5041 is equipped with a wheelchair leg part electromagnetic fixing device 50411, and the wheelchair leg part electromagnetic fixing device 50411 is used in conjunction with the leg connector electromagnetic fixing device 1011.

The wheelchair front wheel 5062 is installed at the tail end of the wheelchair support 501 bottom, and the wheelchair rear wheel 5061 is installed at the head end of the wheelchair support 501 bottom. The diameter of the wheelchair rear wheel 5061 is greater than the wheelchair front wheel 5062, so that the wheelchair structure can be guaranteed It is stable and can facilitate the subsequent combination of the wheelchair and the bed.

The top of the wheelchair foot part 505 is fixedly provided with a first wheelchair foot part fixing frame 5051 , and the wheelchair foot part 505 is fixedly provided with a wheelchair foot part second fixing frame 5052 at the bottom of the head end. The length of the first fixing frame 5051 of the wheelchair foot part is less than the length of the second fixing frame 5052 of the wheelchair foot part, so as to ensure that the wheelchair foot part 505 is always kept level.

The tail end of the wheelchair support member 501 is hinged with the head end of the first wheelchair leg part 5041, and the tail end of the first wheelchair leg part 5041 is hinged with the first wheelchair foot part first fixing frame 5051.

The tail end of the wheelchair support 501 is fixedly provided with a wheelchair support fixing frame 5021 extending vertically downwards, and the wheelchair support fixing frame 5021 is hinged to the first end of the second wheelchair foot component fixing frame 5052 .

The combined use process of bed and chair of the present invention comprises:

The short electric push rod 4 shrinks to the minimum value, and pulls the lower bed lift connector 5 to move toward the head end, driving the bed lift second connector folding rod 702 of the bed lift second connector 7 to rotate counterclockwise, while the bed body The lifting connector 5 under the bed drives the lifting connector 3 of the bed body and the folding rod 702 of the second lifting connector of the bed body to rotate counterclockwise synchronously, so that the height of the bed frame 1 is lowered.

The first long electric push rod 6 shrinks to the minimum value, and drives the leg flexion and extension member 8 to rotate clockwise until the leg flexion and extension member connecting plate 803 is vertically set;

The second long electric push rod 17 shrinks to the minimum value, so that the back-lifting connector 18 rotates counterclockwise until the head end of the second connecting rod 1803 of the back-lifting connector is set obliquely downward.

The wheelchair is pushed toward the placement opening 2102 of the bed frame 1 until the wheelchair support 501 abuts against the gear lever 2104. At this time, the electromagnetic fixing device 50411 of the wheelchair leg part corresponds to the electromagnetic fixing device 1011 of the leg connecting part; The fixing device 50411 is energized with the electromagnetic fixing device 1011 of the leg connector, so that the two are electromagnetically fixed;

The first long electric push rod 6 stretches to the maximum value, driving the leg flexion and extension part 8 to rotate counterclockwise, and the second leg connecting part 10 rotates counterclockwise accordingly, thereby driving the first wheelchair leg part 5041 to rotate counterclockwise until The legs of the wheelchair are set up horizontally.

Open the backrest detachable fixing part 5072 and the armrest detachable fixing part 5032 to separate the wheelchair backrest 507 from the wheelchair armrest 503; fold the wheelchair armrest 503 onto the armrest support rod 2103, pass the pin through the armrest pin hole 5031 and the bed frame pin The wheelchair armrest 503 is fixed through the hole 2105; the wheelchair backrest 507 is folded onto the backrest placement rod 2106, and the wheelchair backrest 507 is fixed through the backrest fixing device 5071 and the chair back fixing member fixing device 1211; at this time, the wheelchair armrest 503 and the wheelchair backrest 507 are all horizontal Set, the wheelchair armrest 503, the wheelchair backrest 507, the chair back fixing part 12, the bed frame 1, the chair foot of the wheelchair, the second leg connecting part 10 and the foot support plate 9 form a plane together.

The short electric push rod 4 is stretched to the maximum value, and the lower lifting connector 5 of the bed body is pulled to move to the tail end, and the folding rod 702 of the second lifting connector 7 of the bed lifting second connector 7 is driven to rotate clockwise, and at the same time The under-bed lifting connector 5 of the bed body drives the lifting connector 3 of the bed body and the folding rod 702 of the second lifting connector of the bed body to rotate clockwise synchronously, so that the height of the bed frame 1 rises. The plane serves as the bed surface.

The use process of bed and chair separation of the present invention comprises:

The short electric push rod 4 shrinks to the minimum value, and pulls the lower bed lift connector 5 to move toward the head end, driving the bed lift second connector folding rod 702 of the bed lift second connector 7 to rotate counterclockwise, while the bed body The lifting connector 5 under the bed drives the lifting connector 3 of the bed body and the folding rod 702 of the second lifting connector of the bed body to rotate counterclockwise synchronously, so that the height of the bed frame 1 is lowered.

The electromagnetic fixing device 50411 of the wheelchair leg part and the electromagnetic fixing device 1011 of the leg connecting part are powered off to separate the two; the first long electric push rod 6 shrinks to the minimum value, and drives the leg flexion and extension part 8 to rotate clockwise until the leg until the flexion and extension member connecting plate 803 is vertically set;

Open the backrest fixing device 5071 and the chair back fixing part fixing device 1211, so that the chair back fixing part 12 is separated from the wheelchair backrest 507; After the back connector 18 abuts against the wheelchair backrest 507, it drives them to rotate together until the wheelchair backrest 507 is nearly vertically arranged;

The first long electric push rod 6 shrinks to the minimum value, and drives the leg flexion and extension member 8 to rotate clockwise until the leg flexion and extension member connecting plate 803 is vertically set;

The second long electric push rod 17 shrinks to the minimum value, so that the back-lifting connector 18 rotates counterclockwise until the head end of the second connecting rod 1803 of the back-lifting connector is set obliquely downward.

The wheelchair is pushed toward the placement opening 2102 of the bed frame 1 until the wheelchair support 501 abuts against the gear lever 2104. At this time, the electromagnetic fixing device 50411 of the wheelchair leg part corresponds to the electromagnetic fixing device 1011 of the leg connecting part; The fixing device 50411 is energized with the electromagnetic fixing device 1011 of the leg connector, so that the two are electromagnetically fixed;

The first long electric push rod 6 stretches to the maximum value, driving the leg flexion and extension part 8 to rotate counterclockwise, and the second leg connecting part 10 rotates counterclockwise accordingly, thereby driving the first wheelchair leg part 5041 to rotate counterclockwise until The legs of the wheelchair are set up horizontally.

Open the backrest detachable fixing part 5072 and the armrest detachable fixing part 5032 to separate the wheelchair backrest 507 from the wheelchair armrest 503; fold the wheelchair armrest 503 onto the armrest support rod 2103, pass the pin through the armrest pin hole 5031 and the bed frame pin The wheelchair armrest 503 is fixed through the hole 2105; the wheelchair backrest 507 is folded onto the backrest placement rod 2106, and the wheelchair backrest 507 is fixed through the backrest fixing device 5071 and the chair back fixing member fixing device 1211; at this time, the wheelchair armrest 503 and the wheelchair backrest 507 are all horizontal Set, the armrest wheelchair 503, the wheelchair backrest 507, the chair back fixing member 12, the bed frame 1, the chair feet of the wheelchair, the second leg connector 10 and the foot support plate 9 form a plane together.

The short electric push rod 4 is stretched to the minimum value, and the lifting and lowering connecting piece 5 under the bed is pulled to move toward the tail end, driving the folding rod 702 of the second lifting and lowering connecting piece 7 of the second connecting piece 7 to rotate clockwise, and at the same time The under-bed lifting connector 5 of the bed body drives the lifting connector 3 of the bed body and the folding rod 702 of the second lifting connector of the bed body to rotate clockwise synchronously, so that the height of the bed frame 1 rises. The plane serves as the bed surface.

Pull out the pin from the pin hole 5031 of the armrest and the pin hole 2105 of the bed frame, and fold up the armrest 503 of the wheelchair until it is set up vertically; fix the backrest 507 and the armrest of the wheelchair by the detachable fixing part 5072 of the backrest and the detachable fixing part 5032 of the armrest 503.

Complete bed and chair separation.

Finally, it should be noted that the above examples are only some specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All deformations that can be directly derived or associated by those skilled in the art from the content disclosed in the present invention should be considered as the protection scope of the present invention.

Claims (4)

1. A bed and chair integrated device for assisting the elderly with inconvenient legs and feet, characterized in that it includes a bed frame (1), a base (2), a bed lifting connector (3), a short electric push rod (4), and a bed body under the bed Lifting connecting piece (5), first long electric push rod (6), second connecting piece for bed lifting (7), leg flexion and extension piece (8), foot support plate (9), second long electric push rod (17), the back connector (18) and the wheelchair; The lower surface of the bed frame (1) is sequentially installed with the first bed frame fixing bracket (101), the bed frame second fixing bracket (102), the bed frame third fixing bracket (103) and the bed frame The fourth fixed bracket (104); the fifth fixed bracket (105) of the bed frame is also installed on the lower surface of the bed frame (1), and the fifth fixed bracket (105) of the bed frame is located on the side near the end of the bed frame (1) ; Four rollers (203) are installed on the bottom of the base (2), and the upper surface of the base (2) is sequentially installed with a first base fixing bracket (201) and a second base fixing bracket vertically upward from the head end to the tail end (202); The under-bed lift connector (5) includes the first link (51) of the under-bed lift connector of the bed body, the second link (52) of the under-bed lift connector of the bed body, and the folding rod (53) of the under-bed lift connector of the bed body. ), the tail end of the first connecting rod (51) of the lifting connector under the bed body is fixedly connected with the middle position of the second connecting rod (52) of the lifting connector (52) of the bed body and the two are perpendicular to each other, and the second connecting rod of the lifting connector under the bed body The two ends of the connecting rod (52) are fixedly connected with the first end of the folding rod (53) of the lifting connector under the bed body; The bed lifting connector (3) includes the bed lifting connector shaft (301), the bed lifting connector connecting rod (302) and the bed lifting connector folding rod (303), the bed lifting connector shaft ( 301) is fixedly connected with the connecting rod (302) of the bed lifting connector and the two are perpendicular to each other, and the inflection point of the folding rod (303) of the bed lifting connector is fixedly connected with the rotating shaft (301) of the bed lifting connector; The second bed lifting connector (7) includes a rotating shaft (701) of the second bed lifting connector and a folding rod (702) of the second bed lifting connector, and a folding rod (702) of the second bed lifting connector The inflection point of the bed body is fixedly connected with the rotating shaft (701) of the second connecting piece for lifting the bed body; The leg flexor (8) includes the leg flexor shaft (801), the leg flexor connecting plate (803) and the leg flexor connecting rod (802), and the head end of the leg flexor connecting plate (803) It is fixedly connected with the rotating shaft of the leg flexor (801) and perpendicular to each other, and the connecting rod of the leg flexor (802) is fixedly connected with the rotating shaft of the leg flexor (801) and perpendicular to each other; The foot support plate (9) is sequentially provided with a first foot support plate connecting rod (901) and a foot support plate second connecting rod (902); The back-lifting connector (18) includes a back-lifting connector shaft (1801), a first link (1802) and a second link (1803) of the back-lifting connector. The head end of the rod (1802) is fixedly connected to the rotating shaft (1801) of the back-lifting connector and is perpendicular to each other. The head end of the second connecting rod (1803) of the back connector extends toward the head end of the bed frame (1); The first fixed bracket (101) of the bed frame is hinged with the rotating shaft (301) of the bed lifting connector, the connecting rod (302) of the bed lifting connector is hinged with the first base fixing bracket (201), and the bed lifting connector is folded One end of the rod (303) is hinged with the head end of the short electric push rod (4), and the other end of the folding rod (303) of the bed lifting connector is hinged with the first end of the first connecting rod (51) of the bed lifting connector. The tail end of the push rod (4) is hinged with the tail end of the first connecting rod (51) of the lifting connector under the bed body; The third fixed bracket (103) of the bed frame is hinged with the rotating shaft (701) of the second lifting connector of the bed body; ) is hinged at one end, and the other end of the folding rod (702) of the second connecting piece for lifting the bed body is hinged with the second base fixing bracket (202); The second fixed bracket (102) of the bed frame is hinged with the head end of the first long electric push rod (6), the fourth fixed bracket (104) of the bed frame is hinged with the shaft of the leg flexion and extension parts (801), and the first long electric push rod is hinged. The tail end of the rod (6) is hinged with the connecting rod (802) of the leg flexor and extension member, and the tail end of the leg flexor and extension member connecting plate (803) is hinged with the first connecting rod (901) of the foot support plate (9), The second connecting rod (902) of the foot support plate is hinged to the tail end of the second leg connector (10), and the head end of the second leg connector (10) is hinged to the tail end of the bed frame (1); An electromagnetic fixing device (1011) for the leg connector is installed on the second leg connector (10); The rotating shaft (1801) of the back-lifting connector is hinged with the middle position of the bed frame (1); The tail end of the electric push rod (17) is hinged with the fifth fixed bracket (105) of the bed frame; The bed frame (1) is a frame structure, and the bed frame (1) is provided with a placement opening (2102) connected to its tail end; the placement opening (2102) is equipped with a seat back fixing member (12) near its head end , a backrest placing rod (2106) is installed on the backrest fixing part (12), and a backrest fixing part fixing device (1211) is also arranged on the backrest fixing part (12); the placement opening (2102) is near its tail end A handrail support rod (2103) and a gear rod (2104) are installed, and a bed frame pin hole (2105) is opened on the side wall facing the placement opening (2102) on the bed frame (1); The wheelchair is used in conjunction with the bed frame (1) There is a certain angle between the leg flexor and extension member connecting plate (803) and the leg flexor and extension member connecting rod (802); There is a certain angle between the first link (1802) of the back-lifting connector and the second link (1803) of the back-lifting connector; The wheelchair comprises a wheelchair backrest (507), a wheelchair armrest (503), a wheelchair cushion (502), a wheelchair support (501), a first wheelchair leg part (5041), a second wheelchair leg part (5042), a wheelchair Foot parts (505), wheelchair front wheels (5062) and wheelchair rear wheels (5061); The first wheelchair leg part (5041), the second wheelchair leg part (5042) and the wheelchair foot part (505) together form the legs of the wheelchair; The wheelchair support (501) is a frame structure, the head end of the wheelchair support (501) is hinged to the bottom of the wheelchair backrest (507), and the left and right sides of the wheelchair support (501) are hinged to the bottom of the wheelchair armrest (503); The wheelchair backrest (507) is provided with a backrest detachable fixing part (5072) near the bottom, and the top end of the wheelchair armrest (503) is provided with a handrail detachable fixing part (5032), and the wheelchair backrest (507) can be moved through the backrest. The detachable fixing part (5072) and the detachable fixing part (5032) of the armrest are detachably connected with the wheelchair armrest (503); The top end of the wheelchair armrest (503) is provided with an armrest pin hole (5031), and the armrest pin hole (5031) is used in conjunction with the bed frame pin hole (2105); The left and right side walls of the wheelchair backrest (507) are provided with a backrest fixing device (5071), and the backrest fixing device (5071) is used in conjunction with the chair back fixing member fixing device (1211); The first wheelchair leg part (5041) is equipped with a wheelchair leg part electromagnetic fixing device (50411), and the wheelchair leg part electromagnetic fixing device (50411) is used in conjunction with the leg connector electromagnetic fixing device (1011); The wheelchair front wheels (5062) are installed at the tail end of the bottom of the wheelchair support (501), and the wheelchair rear wheels (5061) are installed at the head end of the bottom of the wheelchair support (501), The top of the wheelchair foot part (505) is fixed with a first wheelchair foot part fixing frame (5051), and the wheelchair foot part (505) is fixed with a wheelchair foot part second fixing frame (5052) at the bottom of the head end; The tail end of the wheelchair support (501) is hinged to the head end of the first wheelchair leg part (5041), and the tail end of the first wheelchair leg part (5041) is hinged to the first wheelchair foot part fixing frame (5051); The tail end of the wheelchair support (501) is fixed with a wheelchair support fixture (5021) extending vertically downward, and the wheelchair support fixture (5021) is hinged to the first end of the second wheelchair foot component fixture (5052) ; 1) The combination of bed and chair includes: The short electric push rod (4) shrinks to the minimum value, pulls the lower bed lift connector (5) to move to the head end, and drives the bed lift second connector folding rod (702) of the bed lift second connector (7) ) rotates counterclockwise, and at the same time, the bed lift connector (5) drives the bed lift connector (3) and the bed lift second connector folding rod (702) to rotate counterclockwise synchronously, so that the height of the bed frame (1) decline; The first long electric push rod (6) shrinks to the minimum value, and drives the leg flexion and extension piece (8) to rotate clockwise until the leg flexion and extension piece connecting plate (803) is vertically set; The second long electric push rod (17) shrinks to the minimum value, so that the back-lifting connector (18) rotates counterclockwise until the head end of the second connecting rod (1803) of the back-lifting connector is set obliquely downward; Push the wheelchair toward the opening (2102) of the bed frame (1) until the wheelchair support (501) touches the gear bar (2104), at this time the wheelchair leg part electromagnetic fixing device (50411) and the leg connecting part electromagnetic The fixing device (1011) corresponds; the wheelchair leg part electromagnetic fixing device (50411) is energized with the leg connecting part electromagnetic fixing device (1011), so that the two are electromagnetically fixed; The first long electric push rod (6) stretches to the maximum value, driving the leg flexion and extension part (8) to rotate counterclockwise, and the second leg connecting part (10) rotates counterclockwise accordingly, thereby driving the first wheelchair leg part (5041) Turn counterclockwise until the legs of the wheelchair are set horizontally; Open the backrest detachable fixing part (5072) and the armrest detachable fixing part (5032), so that the wheelchair backrest (507) is separated from the wheelchair armrest (503); fold the wheelchair armrest (503) onto the armrest support rod (2103), Pass the pin through the armrest pin hole (5031) and the bed frame pin hole (2105) to fix the wheelchair armrest (503); fold the wheelchair backrest (507) onto the backrest placement rod (2106), and pass the backrest fixing device (5071) Fix the wheelchair backrest (507) with the chair back fixture fixing device (1211); at this time, the wheelchair armrest (503) and the wheelchair backrest (507) are all set horizontally, and the wheelchair armrest (503), wheelchair backrest (507), and chair back fixture (12), the bed frame (1), the chair foot of the wheelchair, the second leg connector (10) and the foot support plate (9) together form a plane; The short electric push rod (4) is stretched to the maximum value, pulling the lifting and lowering connecting piece (5) of the bed body to move to the tail end, driving the folding rod of the second lifting and lowering connecting piece (7) of the bed body (702) rotates clockwise, and at the same time, the lifting connector (5) under the bed body drives the lifting connector (3) of the bed body and the folding rod (702) of the second lifting connector of the bed body rotates clockwise synchronously, so that the bed frame (1) The height rises; the plane serves as the bed surface; 2), bed and chair separation includes: The short electric push rod (4) shrinks to the minimum value, pulls the lower bed lift connector (5) to move to the head end, and drives the bed lift second connector folding rod (702) of the bed lift second connector (7) ) rotates counterclockwise, and at the same time, the bed lift connector (5) drives the bed lift connector (3) and the bed lift second connector folding rod (702) to rotate counterclockwise synchronously, so that the height of the bed frame (1) decline; The first long electric push rod (6) shrinks to the minimum value, driving the leg flexion and extension piece (8) to rotate clockwise until the leg flexion and extension piece connecting plate (803) is vertically set, the wheelchair leg part electromagnetic fixing device (50411 ) and the electromagnetic fixing device (1011) of the leg connector are de-energized to separate the two; Open the backrest fixing device (5071) and the backrest fixing part fixing device (1211), so that the backrest fixing part (12) is separated from the wheelchair backrest (507); the second long electric push rod (17) is extended to the maximum value, so that The back-lifting connector (18) rotates clockwise, and the back-lifting connector (18) abuts against the wheelchair backrest (507) to drive it to rotate together until the wheelchair backrest (507) is nearly vertically set; The second long electric push rod (17) shrinks to the minimum value, so that the back-lifting connector (18) rotates counterclockwise until the head end of the second connecting rod (1803) of the back-lifting connector is set obliquely downward; Pull out the pins from the armrest pin holes (5031) and the bed frame pin holes (2105), and fold up the wheelchair armrest (503) until it is vertical; through the backrest detachable fixing part (5072) and the armrest detachable fixing part (5032) Secure wheelchair backrest (507) and wheelchair armrests (503). 2. A bed-chair integrated device for assisting elderly people with handicapped legs according to claim 1, characterized in that: The length of the first fixing frame (5051) of the wheelchair foot part is less than the length of the second fixing frame (5052) of the wheelchair foot part, and the wheelchair foot part (505) is arranged horizontally; The length of the first link (901) of the foot support plate is greater than the length of the second link (902) of the foot support plate, and the foot support plate (9) is arranged horizontally. 3. A bed-chair integrated device for assisting elderly people with handicapped legs according to claim 2, characterized in that: Handrails (11) are installed on both sides of the bed frame (1), and the armrests (11) are hinged to the bed frame (1) and locking bolts (1101) are installed at the joints. 4. A bed-chair integrated device for assisting elderly people with handicapped legs according to claim 3, characterized in that: The diameter of the wheelchair rear wheel (5061) is larger than that of the wheelchair front wheel (5062).

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