CN110693649A

CN110693649A - Multifunctional nursing wheelchair for old people

Info

Publication number: CN110693649A
Application number: CN201911007962.9A
Authority: CN
Inventors: 朱亚妮; 张玲玲; 高建建
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-01-17

Abstract

The invention discloses a multifunctional nursing wheelchair for the aged, which comprises a main body, wherein a bearing table is integrally connected to the main body, and a seat cushion is connected to the upper end of the bearing table through a bolt. According to the invention, the bearing table and the seat cushion are arranged on the wheelchair main body, and the temperature and humidity of the seat cushion are adjusted by the temperature and humidity controller, so that the comfort of the old in a long-term lying state is ensured; the toilet opening and the toilet passage are correspondingly formed in the seat cushion and the bearing table, and the air bag is driven by the guide plate to open and close the toilet opening, so that convenience is provided for the physiological convenience requirement of the old; the universal wheels driven by the driver are arranged on the wheelchair, so that four upright posts forming the main body are movably sleeved in the bearing sleeve, and the stressed main piston and the stressed auxiliary piston move relatively to provide stable support for the whole wheelchair; the adjustable pedals and the adjustable backrest are correspondingly arranged at the front end and the rear end of the main body, and the back cushion which can be adjusted in a telescopic mode is arranged on the backrest, so that the sitting and lying comfort of the old people can be conveniently adjusted according to the sitting and lying of the old people.

Description

Multifunctional nursing wheelchair for old people

Technical Field

The invention relates to the technical field of geriatric nursing, in particular to a multifunctional geriatric nursing wheelchair.

Background

As is well known, people all have old and weak people, and the development of the current society needs to make a large number of children not always accompany the old, and the old who is inconvenient to move lacks care, so that the old has great inconvenience. With the continuous development of science and technology, more and more old people begin to choose wheelchairs as transportation tools. Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The common wheelchair generally comprises a foldable frame, front and rear wheels, left and right kneepads, a pedal, left and right detachable armrests, a handle brake device and a seat.

Although the wheelchair manufactured by the traditional manufacturing process can provide certain convenience for the old, the wheelchair is limited by a simple structure and still has certain functional defects: firstly, the conventional wheelchair can only adjust the sitting and lying state by adjusting the backrest and the pedal at most, but the wheelchair has a serious humidity and heat imbalance problem due to long-term sitting and lying of the old, particularly high temperature and a large amount of humidity are easily generated, the high temperature and humidity are difficult to diffuse, the body of the old is seriously affected, and the old is extremely easy to catch a cold; secondly, when the old people need to solve the problem of physiological convenience, the traditional wheelchair is difficult to deal with, and only the old people can conveniently get off from the wheelchair, wherein the wheelchair has higher exercise intensity, needs to spend longer time and has great inconvenience; thirdly, for the old people, the most important thing is the safety and comfort of sitting and lying on the wheelchair, and the conventional wheelchair mostly adopts the ordinary mode to install the running gear for the wheelchair has vibrations of a relatively large amplitude in the process of moving, and the old people lack effective support, very easily fall from the wheelchair, have a relatively large threat to the personal safety.

Disclosure of Invention

The invention aims to solve the problem that a nursing wheelchair in the prior art is difficult to meet multiple living requirements of old people, and provides a multifunctional nursing wheelchair for the old people.

In order to achieve the purpose, the invention adopts the following technical scheme:

a multifunctional nursing wheelchair for the aged comprises a main body, wherein a bearing table is integrally connected to the main body, a seat cushion is connected to the upper end of the bearing table through a bolt, a temperature and humidity controller is installed in the bearing table, seepage holes communicated with the temperature and humidity controller are formed in the seat cushion at equal intervals, a defecation opening is formed in the middle of the seat cushion, a guide groove is horizontally formed in the upper end of the bearing table, a hollow guide plate is sleeved in the guide groove in a sliding mode, an air bag corresponding to the defecation opening is sleeved in the guide plate, an air pump connected with the air bag is installed at the tail end of the main body, a defecation channel connected with the defecation opening is formed in the lower end of the bearing table, and a defecation barrel matched with the defecation channel is installed;

the lower end of the bearing table is provided with a driver, the lower ends of four limbs of the main body are movably sleeved with bearing sleeves, a middle cavity and side cavities distributed circumferentially are respectively formed in the bearing sleeves, one end, sleeved in the middle cavity, of the main body is connected with a main piston, a primary spring is fixedly connected in the upper end of each side cavity, the lower end of each primary spring is fixedly connected with an auxiliary piston, and the lower end of each bearing sleeve is integrally connected with a universal wheel;

the utility model discloses a safe and convenient chair, including main part front end, second grade spring and sliding sleeve, sliding sleeve and lifter, the round pin hub connection has the footboard on the main part front end, and the perpendicular welding of main part front end has the guide bar, overlap respectively on the guide bar and establish second grade spring and sliding sleeve, and be connected with branch between sliding sleeve and the footboard, be connected with the cylinder between the branch of main part front end, the equal perpendicular welding in main part both sides has hollow structure's sleeve pipe, and slides in the sleeve pipe and overlap and be equipped with the lifter, horizontal installation has the arm board on the lifter, set up the spout in the arm board lower extreme, and the sliding sleeve of lifter upper end locates in the spout, and the round pin hub connection has the flat board on one of them arm board, the.

Preferably, the infiltration holes are evenly distributed in the circumferential direction, the toilet opening is positioned among the plurality of infiltration holes, the toilet way is obliquely arranged, the upper end of the toilet way vertically corresponds to the toilet opening, the oblique lower end of the toilet way is connected with the toilet, and the toilet is detachable.

Preferably, the driver is electrically connected with the universal wheel, the main body comprises four vertical rods which are vertically arranged, the bottom ends of the vertical rods are vertically sleeved in the middle cavity of the bearing sleeve in a sliding manner, the middle cavity is communicated with the bottom ends of the side cavities, and flowable liquid is filled in the middle cavity and the side cavities between the main piston and the auxiliary piston.

Preferably, the footboard is the L type, and the footboard upper end is connected with two pole setting upper ends of main part front end, guide bar, branch and cylinder all are located the footboard below.

Preferably, the fixed cover of second grade spring one end is located the guide bar lower extreme, and locates the guide bar upper end with the sliding sleeve of second grade spring other end looks welded, the branch both ends are connected with sliding sleeve and footboard round pin axle respectively, the cylinder round pin axle is installed between two pole settings of main part front end, and the cylinder output is connected with the branch pole round pin axle.

Preferably, the flat plate is arranged at the position of one arm plate at the front end of the main body, and the free end of the flat plate is movably abutted against the other arm plate in a horizontal state.

Preferably, the back lower extreme is connected with two pole setting upper ends at the tail end of main part, and the back cushion mechanism includes following structure: the utility model discloses a safe and convenient chair backrest, including back, back upper end, intracavity vertical sliding sleeve is accomodate to the back, set up the L type in the back upper end and accomodate the chamber, and the L type accomodates intracavity vertical sliding sleeve and is equipped with flexible back cushion, the intracavity horizontal sliding sleeve is accomodate to the L type is equipped with the cotter, and fixed cover is equipped with tertiary spring on the cotter.

Preferably, the horizontal position of the L-shaped accommodating cavity sleeved with the pin bolt is provided with a limit flange which is abutted against the tertiary spring, and one end of the pin bolt, which is positioned in the L-shaped accommodating cavity, is movably abutted against the telescopic back cushion.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the bearing table and the seat cushion are arranged on the main body, and the temperature and humidity controller is arranged in the bearing table, so that the seat cushion provided with the seepage holes can regulate and control the temperature and humidity of an old person who lies on the wheelchair for a long time, and a comfortable sitting and lying environment is provided for the old person; through corresponding in seatpad and bearing platform set up just mouthful and just saying, and through set up the guide way in the bearing platform, utilize the guide plate that scalable accomodate to drive the cylinder and carry out horizontal migration to open and close just mouthful under different demand circumstances, provide the convenience for old man's physiology demand.

2. The invention sets a driver for driving the universal wheel in the main body, the bearing sleeve is movably connected on the four upright posts forming the main body, the middle cavity and the side cavity which are communicated are arranged in the bearing sleeve, the upright posts sleeved in the middle cavity are connected with the main piston, the primary spring in the side cavity is connected with the auxiliary piston, the main piston and the auxiliary piston are stressed to enable liquid to flow in the middle cavity and the side cavity in two directions, so as to improve the stability of the universal wheel when moving and being stressed and maintain the overall stability of the wheelchair, thereby ensuring the sitting and lying safety and comfort of the old

3. According to the invention, the pedal and the backrest are respectively connected on the front end and the tail end of the main body through the pin shafts, the cylinder, the sliding sleeve and the support rod which are elastically supported by the secondary spring are arranged at the front end of the main body, and the cylinder is used for driving the pedal to be dragged, supported and limited through the support rod, so that the pedal can be stably debugged according to actual needs to provide comfortable support for the two feet of the old; through different angle adjustment backs, the flexible back cushion of scalable regulation of installation on the back for the old man provides comfortable leaning on, satisfies the demand of difference under the state of lying of sitting.

In conclusion, the bearing table and the seat cushion are arranged on the wheelchair main body, and the temperature and humidity of the seat cushion are adjusted by the temperature and humidity controller, so that the comfort of the old in a long-term lying state is ensured; the toilet opening and the toilet passage are correspondingly formed in the seat cushion and the bearing table, and the air bag is driven by the guide plate to open and close the toilet opening, so that convenience is provided for the physiological convenience requirement of the old; the universal wheels driven by the driver are arranged on the wheelchair, so that four upright posts forming the main body are movably sleeved in the bearing sleeve, and the stressed main piston and the stressed auxiliary piston move relatively to provide stable support for the whole wheelchair; the adjustable pedals and the adjustable backrest are correspondingly arranged at the front end and the rear end of the main body, and the back cushion which can be adjusted in a telescopic mode is arranged on the backrest, so that the sitting and lying comfort of the old people can be conveniently adjusted according to the sitting and lying of the old people.

Drawings

Fig. 1 is a schematic structural diagram of a multifunctional nursing wheelchair for the aged provided by the invention;

FIG. 2 is an enlarged view of a part A of the multifunctional wheelchair for nursing aged people in accordance with the present invention;

FIG. 3 is an enlarged view of a part B of the multifunctional wheelchair for nursing aged people in accordance with the present invention;

FIG. 4 is a side view of a multifunctional geriatric nursing wheelchair according to the present invention;

fig. 5 is a schematic structural view of a main body of a multifunctional nursing wheelchair for the aged;

FIG. 6 is a schematic view of a cushion structure of a multifunctional wheelchair for nursing aged people according to the present invention;

FIG. 7 is a schematic view of a connection structure of a guide groove and a guide plate of the multifunctional wheelchair for nursing aged people according to the present invention;

fig. 8 is a schematic structural view of a lifting rod, an arm plate and a flat plate of the multifunctional wheelchair for nursing old people.

In the figure: the device comprises a main body 1, a bearing table 2, a seat cushion 3, a temperature and humidity controller 4, a seepage hole 5, a stool port 6, a guide groove 7, a guide plate 8, an air bag 9, an air pump 10, a stool passage 11, a stool barrel 12, a driver 13, a bearing sleeve 14, a middle cavity 15, a side cavity 16, a main piston 17, a primary spring 18, a secondary piston 19, a universal wheel 20, a pedal 21, a guide rod 22, a secondary spring 23, a sliding sleeve 24, a support rod 25, an air cylinder 26, a sleeve 27, a lifting rod 28, an arm plate 29, a sliding chute 30, a flat plate 31, a limit bolt 32, a backrest 33, a 34L-shaped accommodating cavity 35, a telescopic headrest 36 and a tertiary spring 37.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-8, a multifunctional wheelchair for nursing old people comprises a main body 1, specifically referring to fig. 1 and 4 for illustration, a bearing table 2 is integrally connected to the main body 1, a seat cushion 3 is bolted to the upper end of the bearing table 2, a temperature and humidity controller 4 is installed in the bearing table 2, the temperature and humidity controller 4 is TB02-serie, a seepage hole 5 communicated with the temperature and humidity controller 4 is formed in the seat cushion 3 at a certain distance, a defecation port 6 is formed in the middle of the seat cushion 3, a guide groove 7 is horizontally formed in the upper end of the bearing table 2, a hollow guide plate 8 is slidably sleeved in the guide groove 7, an air bag 9 corresponding to the defecation port 6 is sleeved in the guide plate 8, the air bag 9 seals the defecation port 6 in a filling state so as to fill the vacancy of the defecation port 6 and prevent odor from diffusing, the air bag 9 is accommodated in the guide plate 8 when contracting so as to horizontally move the guide plate 8, an air pump 10 connected with the air bag 9 is arranged at the tail end of the main body 1, a toilet passage 11 connected with the toilet opening 6 is arranged at the lower end of the bearing table 2, and a toilet bowl 12 matched with the toilet passage 11 is arranged at the tail end of the main body 1;

the lower end of the bearing table 2 is provided with a driver 13, the model of the driver 13 is SCD2-B, the lower ends of four limbs of the main body 1 are movably sleeved with bearing sleeves 14, middle cavities 15 and side cavities 16 distributed circumferentially are respectively arranged in the bearing sleeves 14, further, the number of the side cavities 16 can be set to 3-5, one end of the main body 1 sleeved in the middle cavity 15 is connected with a main piston 17, the upper end of the side cavity 16 is internally and fixedly connected with a primary spring 18, the lower end of the primary spring 18 is fixedly connected with an auxiliary piston 19, and the lower end of the bearing sleeve 14 is integrally connected with a universal wheel 20;

the front end of the main body 1 is connected with a pedal 21 through a pin shaft, referring to the figure 1 for the specific description, the pedal 21 is L-shaped, the front end of the main body 1 is vertically welded with a guide rod 22, the guide rod 22 is respectively sleeved with a secondary spring 23 and a sliding sleeve 24, a support rod 25 is connected between the sliding sleeve 24 and the pedal 21, a cylinder 26 is connected between the support rods 25 at the front end of the main body 1, the model of the cylinder 26 is SCD50x100-100-LB, it needs to be described that the cylinder 26 can also be replaced by an electric telescopic rod, both sides of the main body 1 are vertically welded with a sleeve 27 with a hollow structure, a lifting rod 28 is slidably sleeved in the sleeve 27, an arm plate 29 is horizontally installed on the lifting rod 28, a chute 30 is arranged in the lower end of the arm plate 29, the upper end of the lifting rod 28 is slidably sleeved in the chute 30, one arm plate 29 is connected with a flat plate 31 through a pin shaft, so as to adjust the positions of the arm plate 29 and the flat plate 31, the two sides of the main body 1 are horizontally provided with a limit bolt 32 which is movably abutted against the lifting rod 28, the tail end of the main body 1 is connected with a backrest 33 through a pin shaft, and the upper end of the backrest 33 is provided with a headrest mechanism.

Referring to the accompanying drawing 6 for specific description, the seepage holes 5 are circumferentially and uniformly distributed, the excrement opening 6 is positioned among the seepage holes 5, the excrement passage 11 is obliquely arranged, the upper end of the excrement passage 11 vertically corresponds to the excrement opening 6, the oblique lower end of the excrement passage 11 is connected with the excrement barrel 12, the excrement barrel 12 is detachable, and the excrement barrel 12 which collects excrement and urine is detached and cleaned, so that any diffusion of dirt is avoided.

The driver 13 is electrically connected to the universal wheel 20, and referring to fig. 5 for specific description, the main body 1 includes four vertical rods vertically disposed, bottom ends of the vertical rods are vertically slidably sleeved in the middle cavity 15 of the bearing sleeve 14, the middle cavity 15 is communicated with bottom ends of the side cavities 16, and the middle cavity 15 and the side cavities 16 between the main piston 17 and the auxiliary piston 19 are filled with a flowable liquid, it should be noted that, under normal conditions, the auxiliary piston 19 is squeezed by tension of the primary spring 18, so that the liquid flows into the middle cavity 15, and the main piston 17 is squeezed to provide a stable support for the main body 1.

The pedal 21 is L-shaped, the upper end of the pedal 21 is connected with the upper ends of two vertical rods at the front end of the main body 1, and the guide rod 22, the support rod 25 and the cylinder 26 are all positioned below the pedal 21.

The fixed cover of second grade spring 23 one end is located the lower extreme of guide bar 22, and with the sliding sleeve 24 sliding sleeve of second grade spring 23 other end welded locate the guide bar 22 upper end, branch 25 both ends are respectively with sliding sleeve 24 and footboard 21 round pin hub connection, cylinder 26 round pin axle is installed between two pole settings of main part 1 front end, and cylinder 26 output and branch 25 round pin hub connection, refer to description attached drawing 1 specifically, support branch 25 through cylinder 26, make the branch 25 of atress drive sliding sleeve 24 vertical motion on guide bar 22, thereby provide the spacing supporting role that can deflect from top to bottom for footboard 21.

The flat plate 31 is mounted on one of the arm plates 29 at the front end of the main body 1, and the free end of the flat plate 31 is movably abutted against the other arm plate 29 in a horizontal state, in which state, the old can provide a supporting function for the arm through the arm plate 29, and meanwhile, the flat plate 31 can be used as a desktop.

Further, when the backrest 33 and the pedals 21 are laid flat and the elderly lie on the wheelchair, the raised arm plate 29 can be used to limit the position of the elderly, thereby preventing the elderly from falling off the wheelchair.

The lower end of the backrest 33 is connected with the upper ends of two vertical rods at the tail end of the main body 1, and the headrest mechanism comprises the following structures: the L-shaped storage cavity 34 is formed in the upper end of the backrest 33, the telescopic back cushion 35 is sleeved on the L-shaped storage cavity 34 in a vertical sliding mode, the pin bolt 36 is sleeved on the L-shaped storage cavity 34 in a horizontal sliding mode, the pin bolt 36 is fixedly sleeved with the three-level spring 37, the telescopic back cushion 35 can move according to the requirement of the old people for lying, and support is provided for the neck and the head of the old people.

A limit flange which is propped against the tertiary spring 37 is arranged at the horizontal position of the L-shaped accommodating cavity 34, which is sleeved with the pin bolt 36, and one end of the pin bolt 36, which is positioned in the L-shaped accommodating cavity 34, is movably propped against the telescopic back cushion 35.

The invention can be illustrated by the following operating modes:

when an elderly person is seated in a wheelchair, with particular reference to the accompanying illustrations 1-4,

firstly, the backrest 33 is pushed to a near vertical state, the telescopic back cushion 35 is extended by pulling the pin bolt 36 outwards and simultaneously pulling the telescopic back cushion 35 upwards from the L-shaped accommodating cavity 34, the pin bolt 36 is released, and under the tension of the tertiary spring 37, the pin bolt 36 is abutted against the telescopic back cushion 35;

secondly, the cylinder 26 is opened, the output shaft of the cylinder 26 extends upwards to jack and support the strut 25, the strut 25 drives the sliding sleeve 24 to move upwards by taking the guide rod 22 as a force point, and simultaneously, the strut 25 which gradually becomes vertical jacks up the pedal 21 gradually under the elastic support of the secondary spring 23.

When it is desired to use the arm plate 29 and the plate 31,

firstly, the lifting rod 28 is pulled upwards in the sleeve 27, so that the lifting rod 28 drives the arm plate 29 to ascend synchronously, and then the limit bolt 32 is pushed horizontally, so that the limit bolt 32 is abutted against the lifting rod 28;

secondly, the arm plate 29 is horizontally pushed by taking the lifting rod 28 as a fulcrum, so that the arm plate 29 horizontally moves on the lifting rod 29 through the chute 30, and then the flat plate 31 is turned over on the arm plate 29, so that the free end of the flat plate is abutted against the other arm plate 29 in the horizontal state, thereby providing convenience for the drinking or eating of the old.

When the toilet is needed to be convenient, the air pump 10 releases air in the air bag 9, the air bag 9 is contracted into the guide plate 8, the guide plate 8 is pulled towards the tail end of the main body 1, the toilet opening 6 is vertically connected with the upper end of the toilet way 11, after the toilet is convenient to use, the toilet way 11 is used for collecting in the toilet bowl 12, the guide plate 8 is pushed to the original position, the inflated air bag 9 is used for sealing the toilet opening 6, and when the odor is blocked, the position of the toilet opening 6 can be filled for the old to sit or lie.

In the process, the temperature and humidity controller 4 is opened, so that the high-temperature or low-temperature gas and the humidifying mist enter the seat cushion 3 through the seepage holes 5 to adjust the temperature and humidity state of the seat cushion 3.

When the position of the wheelchair needs to be moved, the universal wheel 20 is driven to roll through the driver 13, in the process, the whole wheelchair drives the main piston 17 to move downwards in the middle cavity 15 through four vertical rods, the main piston 17 extrudes liquid in the middle cavity 15 to the side cavity 16 in the downward moving process, and the liquid extrudes the auxiliary piston 19 again, so that the auxiliary piston 19 moves upwards to extrude the first-stage spring 18, and meanwhile, under the action of tension of the first-stage spring 18, the liquid flows back to the middle cavity 15, and under the combined action of the first-stage spring 18 and the liquid, the stability of the universal wheel 20 is maintained, and the whole stability of the wheelchair is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A multifunctional nursing wheelchair for the aged comprises a main body (1) and is characterized in that a bearing table (2) is integrally connected onto the main body (1), a seat cushion (3) is connected to the upper end of the bearing table (2) through a bolt, a temperature and humidity controller (4) is installed in the bearing table (2), a seepage hole (5) communicated with the temperature and humidity controller (4) is formed in the seat cushion (3) at a medium distance, a defecation opening (6) is formed in the middle of the seat cushion (3), a guide groove (7) is horizontally formed in the upper end of the bearing table (2), a hollow guide plate (8) is sleeved in the guide groove (7) in a sliding mode, an air bag (9) corresponding to the defecation opening (6) is sleeved in the guide plate (8), an air pump (10) connected with the air bag (9) is installed at the tail end of the main body (1), a defecation passage (11) connected with the defecation opening (6) is formed in the lower end, and the end of the main body (1) is provided with a chamber pot (12) matched with the chamber pot (11);

the lower end of the bearing table (2) is provided with a driver (13), the lower ends of four limbs of the main body (1) are movably sleeved with bearing sleeves (14), a middle cavity (15) and side cavities (16) distributed in the circumferential direction are respectively formed in the bearing sleeves (14), one end, sleeved in the middle cavity (15), of the main body (1) is connected with a main piston (17), a primary spring (18) is fixedly connected into the upper end of the side cavity (16), an auxiliary piston (19) is fixedly connected to the lower end of the primary spring (18), and the lower end of each bearing sleeve (14) is integrally connected with a universal wheel (20);

the lifting device is characterized in that a pedal (21) is connected to the front end of the main body (1) through a pin shaft, a guide rod (22) is vertically welded to the front end of the main body (1), a secondary spring (23) and a sliding sleeve (24) are respectively sleeved on the guide rod (22), a supporting rod (25) is connected between the sliding sleeve (24) and the pedal (21), a cylinder (26) is connected between the supporting rods (25) at the front end of the main body (1), sleeves (27) of a hollow structure are vertically welded to the two sides of the main body (1), a lifting rod (28) is slidably sleeved in the sleeves (27), an arm plate (29) is horizontally installed on the lifting rod (28), a sliding groove (30) is formed in the lower end of the arm plate (29), the upper end of the lifting rod (28) is slidably sleeved in the sliding groove (30), a flat plate (31) is connected to the upper pin shaft of one arm plate (29), and a limit bolt (32) movably abutted to the lifting rod, the back rest mechanism is characterized in that a back rest (33) is connected to the tail end of the main body (1) through a pin shaft, and a back rest mechanism is arranged at the upper end of the back rest (33).

2. The multifunctional wheelchair for nursing old people according to claim 1, wherein the seeping holes (5) are evenly distributed in the circumferential direction, the toilet openings (6) are located among the seeping holes (5), the toilet passage (11) is obliquely formed, the upper end of the toilet passage (11) vertically corresponds to the toilet openings (6), the oblique lower end of the toilet passage (11) is connected with the toilet bowl (12), and the toilet bowl (12) is detachable.

3. The multifunctional wheelchair for nursing old people as claimed in claim 1, wherein the driver (13) is electrically connected to the universal wheel (20), the main body (1) comprises four vertical rods, the bottom ends of the vertical rods are vertically slidably sleeved in the middle cavity (15) of the bearing sleeve (14), the middle cavity (15) is communicated with the bottom ends of the side cavities (16), and the middle cavity (15) and the side cavities (16) between the main piston (17) and the auxiliary piston (19) are filled with a flowable liquid.

4. The multifunctional nursing wheelchair for the aged as claimed in claim 3, wherein the pedal (21) is L-shaped, the upper end of the pedal (21) is connected with the upper ends of two vertical rods at the front end of the main body (1), and the guide rod (22), the support rod (25) and the cylinder (26) are all positioned below the pedal (21).

5. The multifunctional wheelchair for nursing old people as claimed in claim 4, wherein one end of the secondary spring (23) is fixedly sleeved on the lower end of the guide rod (22), and a sliding sleeve (24) welded to the other end of the secondary spring (23) is slidably sleeved on the upper end of the guide rod (22), two ends of the support rod (25) are respectively pin-connected with the sliding sleeve (24) and the pedal (21), the cylinder (26) is pin-mounted between two vertical rods at the front end of the main body (1), and the output end of the cylinder (26) is pin-connected with the support rod (25).

6. The multifunctional wheelchair for nursing old people as claimed in claim 1, wherein the plate (31) is mounted on one of the arm plates (29) at the front end of the main body (1), and the free end of the plate (31) is in horizontal position to movably abut against the other arm plate (29).

7. The multifunctional wheelchair for nursing old people as claimed in claim 3, wherein the lower end of the backrest (33) is connected with the upper ends of two vertical rods at the tail end of the main body (1), and the headrest mechanism comprises the following structures: the utility model discloses a safe and convenient chair backrest, it accomodates chamber (34) to have seted up the L type in back (33) upper end, and the L type accomodates chamber (34) in the perpendicular slip cover be equipped with flexible back cushion (35), the L type is accomodate chamber (34) interior horizontal sliding sleeve and is equipped with cotter (36), and fixed cover is equipped with tertiary spring (37) on cotter (36).

8. The multifunctional wheelchair for nursing old people as claimed in claim 7, wherein a limit flange abutting against a tertiary spring (37) is arranged at a horizontal position of the L-shaped accommodating cavity (34) where the pin (36) is sleeved, and one end of the pin (36) located in the L-shaped accommodating cavity (34) movably abuts against the telescopic back cushion (35).