CN210991256U

CN210991256U - Wheelchair bed

Info

Publication number: CN210991256U
Application number: CN201921485075.8U
Authority: CN
Inventors: 葛江宇; 林钟卫; 郑雄胜; 朱邦杰; 许明乐; 李松松
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-07-14
Anticipated expiration: 2029-09-06

Abstract

The utility model provides a wheelchair bed belongs to nursing equipment technical field. It has solved the wheelchair bed and has used inconvenient, the not strong technical problem of practicality etc.. The wheelchair bed comprises a bed body and a wheelchair, wherein one side of the bed body is provided with a notch; the wheelchair comprises a frame body, wherein universal wheels are arranged at the bottom of the front end of the frame body, a wheel hub assembly is arranged at a position, close to the rear end, of the frame body, a seat plate is fixedly arranged at the upper end of the frame body, the front end of the seat plate is hinged with a leg plate inclining downwards, the rear end of the seat plate is hinged with a back plate inclining upwards, the seat plate is as high as the notch of the bed body, a driving piece capable of positioning and driving the leg plate and the back plate to lift is arranged on the frame body, the wheelchair is positioned in the notch, and when the leg plate and the back plate are all level with the seat plate; the wheelchair is provided with a remote sensor which can drive the wheelchair and the driving piece to move. The utility model discloses well wheelchair can set up with bed body an organic whole, and the wheelchair also can the exclusive use, and the wheelchair is electronic wireless remote control, has improved the practicality and the convenience of wheelchair bed.

Description

Wheelchair bed

Technical Field

The utility model belongs to the technical field of the care implement, a wheelchair bed is related to.

Background

China is a country with the most disabled people in the world, and the Chinese population enters the old, for the old and the disabled, one common characteristic of the old and the disabled is inconvenient to move, and the popularization of a traffic auxiliary tool for the people with the inconvenient movement is particularly important; along with the development of society, intelligent wheelchairs appear, great convenience is brought to people who need auxiliary tools, and no matter special people use artificial wheelchairs or intelligent wheelchairs, the wheelchairs and the beds are very inconvenient and unsafe in mutual conversion.

Chinese patent (publication number: CN 201356724; publication date: 2009-12-09) discloses a combined wheelchair bed, wherein a portal-shaped integral bed frame is surrounded on three sides of the wheelchair bed, and the height of the bed frame is equal to that of the wheelchair bed when the wheelchair bed is flatly placed.

The combined wheelchair bed disclosed in the above patent document is a part of a wheelchair bed, and there is no conversion between the wheelchair and the bed for a user, but the folding or the extension of the wheelchair can be completed only by manual assistance, and the folding or the extension of the wheelchair can be performed only by manual assistance when going out, which is not very practical and very inconvenient.

Disclosure of Invention

The utility model discloses to the above-mentioned problem that prior art exists, provide a wheelchair bed, the utility model aims to solve the technical problem be: how to improve the practicability and the use convenience of the wheelchair bed.

The purpose of the utility model can be realized by the following technical proposal:

a wheelchair bed is characterized by comprising a bed body and a wheelchair, wherein one side of the bed body is provided with a notch; the wheelchair comprises a frame body, universal wheels are arranged at the bottom of the front end of the frame body, a wheel hub assembly is arranged at a position, close to the rear end, of the frame body, a seat plate is fixedly arranged at the upper end of the frame body, a leg plate inclining downwards is hinged to the front end of the seat plate, a back plate inclining upwards is hinged to the rear end of the seat plate, the seat plate is as high as a notch of the bed body, a driving piece capable of positioning and driving the leg plate and the back plate to ascend and descend is arranged on the frame body, the wheelchair is located in the notch, and when the leg plate and the back plate are all level to the seat plate, the leg plate, the seat plate and the back plate can be; the wheelchair is provided with a remote sensor which can drive the wheelchair and the driving piece to act.

The working principle is as follows: the wheelchair on the wheelchair bed among this technical scheme passes through remote sensor wireless remote control, make the wheelchair can oneself advance, the backset, the turn, it is very convenient to go on a journey, remote sensor wireless remote control driving piece drive leg board is around the pin joint luffing motion of leg board with the bedplate, also can drive the backplate around the pin joint luffing motion of bedplate with the backplate, make the backplate, leg board and bedplate parallel and fill up the breach of the bed body, and the joint is in the breach of the bed body, make the bed body and wheelchair integration set up, this whole process does not need artifical supplementary just can go on, the practicality of wheelchair bed has been improved, and driving piece drive leg board and backplate swing all comparatively slowly, can not hinder the people too greatly because of the action yet, the driving piece can fix a position after the action is accomplished, the security is guaranteed.

In the wheelchair bed, the driving part comprises a first electric hydraulic rod, a second electric hydraulic rod and a third electric hydraulic rod, the first electric hydraulic rod is vertically arranged, the side face of the first electric hydraulic rod is fixedly connected with the middle part of the rear end of the wheelchair frame body, the middle part of the back face of the back plate is fixedly provided with a first connecting seat, and a piston rod of the first electric hydraulic rod is hinged with the first connecting seat; the second electric hydraulic rod and the third electric hydraulic rod are fixedly arranged on the frame body below the seat plate at intervals in a parallel mode, the second electric hydraulic rod and the third electric hydraulic rod incline towards the back face direction of the leg plate, the back face of the leg plate is correspondingly and fixedly provided with a second connecting seat and a third connecting seat, a piston rod of the second electric hydraulic rod is hinged to the second connecting seat, and a piston rod of the third electric hydraulic rod is hinged to the three connecting seat. The electric hydraulic rod is a transmission device driven by a direct current motor, an internal motor is driven by a reduction gear, the stroke is about 250mm, when the electric hydraulic rod reaches the maximum stroke or the minimum stroke, a power supply is automatically cut off, and the electric hydraulic rod is low in manufacturing cost, long in service life and strong in maintainability.

In the wheelchair bed, the hub assembly comprises a first hub and a second hub which are arranged in parallel at intervals, a connecting plate is arranged between the first hub and the second hub, a first driving motor is arranged on the inner side of the first hub, an output shaft of the first driving motor is fixedly connected with the center of the first hub, a second driving motor is arranged on the inner side of the second hub, an output shaft of the second driving motor is fixedly connected with the center of the second hub, and two ends of the connecting plate are fixedly arranged on the upper side surfaces of the first driving motor and the second driving motor respectively. The movement of the hub component is driven by the driving motor, and the remote controller can control the rotating speeds of the first driving motor and the second driving motor to realize the free travel of the wheelchair, so that special people can conveniently go out by using the wheelchair in the wheelchair bed.

In the wheelchair bed, the upper end face of the connecting plate is fixedly provided with the audible and visual alarm, and the wheelchair is provided with an alarm button for triggering the audible and visual alarm to give an alarm. The audible and visual alarm is powered by a power supply and is controlled by an alarm button, when the alarm button is pressed down in danger, the audible and visual alarm gives out alarm and calls for help, red light flickers to attract the attention of surrounding people, the emergency crisis is resolved, and the safety of special people who go out or go out independently with the wheelchair is improved.

In the wheelchair bed, the remote sensor controls the actions of the driving motor I, the driving motor II, the electric hydraulic rod I, the electric hydraulic rod II and the electric hydraulic rod III through the wireless control module, and the wireless control module is respectively and electrically connected with the driving motor I, the driving motor II, the electric hydraulic rod I, the electric hydraulic rod II and the electric hydraulic rod III; the alarm button is used for controlling the operation of the audible and visual alarm through the wireless control module, and the wireless control module is electrically connected with the audible and visual alarm. Realize the wireless serial port communication of two Arduino chips through the wireless serial port module of 2.4G, send data to control turning to of wheel and the flexible of rotational speed and electronic hydraulic stem, wireless design makes the device outward appearance neatly more pleasing to the eye, avoids the data line of overlength to influence special crowd's use body and feels.

In the wheelchair bed, the frame body comprises two parallel U-shaped rods arranged at intervals and an X-shaped fixing plate, the front end of each U-shaped rod is an open end, the rear end of each U-shaped rod is a closed end, and two ends of each fixing plate are fixedly arranged at the rear end of each U-shaped rod respectively; a plurality of vertical support rods are fixedly arranged between the open end and the closed end of each U-shaped rod in parallel at intervals; every U-shaped pole upper portion front end all sets firmly the decurrent connecting rod of slope, the universal wheel has two and sets firmly respectively through set screw in two the bottom of connecting rod, the connecting plate with two the lower extreme looks rigid coupling of U-shaped pole. Due to the design of the frame body, the seat plate and the hub component are buffered when interacting with each other, and the comfort of the wheelchair bed for special people is improved.

In the wheelchair bed, the middle parts of the two sides of the seat board are provided with a first handrail and a second handrail, the remote sensor and the alarm button are fixedly arranged on the upper end surface of the first handrail at intervals, one side of the notch in the bed body is provided with a first groove for embedding the lower end of the second handrail, the middle part of the upper end of the back plate is provided with a neck plate, and one end of the notch in the bed body is provided with a second groove for embedding the neck plate. The first handrail is fixedly arranged on one side of the seat board, and the remote sensor and the alarm button are arranged on the upper surface of the first handrail, so that the wheelchair can be conveniently operated; the second handrail can be hinged with the seat board, and is fixed on the seat board through the clamping piece when going out, and when the wheelchair needs to be integrated with the bed body, the second handrail can be put down around the hinged point, so that a user can have a larger range of motion; the neck plate is embedded in the second groove, so that the firmness of connection between the bed body and the wheelchair can be improved.

In the wheelchair bed, two sides of the lower end of the upper surface of each leg plate are provided with a third groove, a foot placing plate is embedded in each third groove, and the two foot placing plates are hinged with the leg plates through a first pin shaft; the seat board is hinged with the leg board and the seat board is hinged with the back board through pin shafts. The foot placing plate is arranged, so that the comfort of a wheelchair bed user is improved.

In the wheelchair bed, the first hub and the second hub are respectively provided with a plurality of lightening holes with the same size, the lightening holes on the first hub are circumferentially distributed around the center of the first hub at intervals, and the lightening holes on the second hub are circumferentially distributed around the center of the second hub at intervals. The arrangement of the lightening holes enables the wheelchair bed to be more portable and save electricity.

In the wheelchair bed, the bed body comprises a rectangular bed frame and a bed plate fixedly arranged at the upper end of the bed frame, bed baffles are arranged at two ends of the bed plate, the bed plate is as high as the seat plate on the wheelchair, a bed handrail is arranged on one side of the bed plate opposite to the notch, and a plurality of trundles are arranged at the bottom of the bed frame. The arrangement of the wheelchair bed upper bed baffle and the bed handrail ensures the safety of a user; the arrangement of the caster wheels on the wheelchair bed improves the practicability of the wheelchair bed and makes the application range of the wheelchair bed wider.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses well wheelchair bed's wheelchair is intelligent wheelchair and for wireless control, and the appearance is pleasing to the eye, does not need artifical supplementary, and the user of wheelchair bed just can go out alone or with the integration setting of the wheelchair and the bed body, has improved the practicality and the convenience of use of this wheelchair bed.

2. The design of the wheelchair frame body and the arrangement of the foot plate arranged on the wheelchair of the utility model improves the comfort level of the wheelchair bed.

3. The wheelchair on the bed of the middle wheelchair of the utility model is provided with the audible and visual alarm, thereby improving the safety of special people who go out or go out independently with the wheelchair.

Drawings

Fig. 1 is a schematic perspective view of the wheelchair bed.

FIG. 2 is a schematic perspective view of the bed of FIG. 1.

Fig. 3 is a perspective view of the wheelchair in a folded state in the present wheelchair bed.

Fig. 4 is a front view of the present wheelchair bed in a folded state.

Fig. 5 is a partially enlarged schematic view of fig. 4.

Figure 6 is a front view of the present wheelchair bed with the wheelchair in a flat position.

Fig. 7 is a left side view of the wheelchair bed in a flat state.

Fig. 8 is a schematic diagram of a partial enlarged structure in fig. 7.

Fig. 9 is a schematic diagram of a partially enlarged structure in fig. 7.

Fig. 10 is a schematic perspective view of the first electro-hydraulic rod in the wheelchair bed.

Fig. 11 is a perspective view of the hub assembly of the present wheelchair bed.

Figure 12 is a front view of the frame of the wheelchair of the present wheelchair bed.

Figure 13 is a left side view of the frame of the wheelchair of the present wheelchair bed.

In the figure, 1, bed body; 11. a notch; 12. a first groove; 13. a second groove; 14. a bed frame; 15. a bed board; 16. a bed baffle; 17. a bed armrest; 18. a caster wheel; 2. a wheelchair; 21. A frame body; 211. a U-shaped rod; 211a, open end; 211b, closed end; 212. a fixing plate; 213. a support bar; 214. a connecting rod; 22. a universal wheel; 23. a hub assembly; 231. a first hub; 232. a second hub; 233. a connecting plate; 234. lightening holes; 24. A seat plate; 25. a leg plate; 25a and a third groove; 26. a back plate; 26a, a neck plate; 27. a first handrail; 28. a second handrail; 29. placing a foot plate; 3. a drive member; 31. an electric hydraulic rod I; 31a, a first connecting seat; 32. a second electric hydraulic rod; 32a and a second connecting seat; 33. an electric hydraulic rod III; 33a and a connecting seat III; 4. a remote sensor; 5. driving a motor I; 6. a second driving motor; 7. an audible and visual alarm; 8. an alarm button; 9. a set screw; 10. a first pin shaft; 10a and a second pin shaft.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the wheelchair bed in this embodiment includes a bed body 1 and a wheelchair 2, one side of the bed body 1 has a notch 11, the bed body 1 includes a rectangular bed frame 14, a bed board 15 is disposed on the bed frame 14, a plurality of casters 18 are disposed at the bottom of the bed frame 14, two ends of the bed board 15 are provided with bed baffles 16, and a bed handrail 17 is fixedly disposed on one side surface of the bed board 15 without the notch 11; the wheelchair 2 comprises a frame body 21, two universal wheels 22 are arranged at the bottom of the front end of the frame body 21, a wheel hub assembly 23 is arranged at a position, close to the rear end, on the frame body 21, a seat plate 24 is arranged at the upper end of the frame body 21, a leg plate 25 inclining downwards is hinged at the lower end of the seat plate 24, a back plate 26 inclining upwards is hinged at the upper end of the seat plate 24, the seat plate 24 is as high as a bed plate 15 of the bed body 1, a driving piece 3 for driving the back plate 26 and the leg plate 25 to ascend or descend and enabling the back plate 26 and the leg plate 25 to be flush with the seat plate 24 is further arranged on the wheelchair 2, when the back plate 26 and the leg plate 25 are flush with the seat plate 24 and fill up a gap 11 of the bed body 1, the bed body 1 and the wheelchair 2 are integrally arranged, an audible and visual alarm 7 is further arranged on the wheelchair 2, a first handrail 27 is fixedly arranged on, the remote sensor 4 is used for remotely controlling the wheelchair 2 to move through the wireless control module and combining the bed body 1 and the wheelchair 2 into a whole, the alarm button 8 is also used for controlling the audible and visual alarm 7 to alarm through the wireless control module, and the audible and visual alarm 7 is electrically connected with the wireless control module.

Further, as shown in fig. 4 to 13, the frame body 21 includes two U-shaped rods 211 arranged in parallel at intervals, the front end of each U-shaped rod 211 is an open end 211a, the rear end of each U-shaped rod 211 is a closed end 211b, the frame body 21 further includes an X-shaped fixing plate 212, two ends of the fixing plate 212 are fixedly arranged on the closed ends 211b of the two U-shaped rods 211, the front end of the upper side of each U-shaped rod 211 is provided with a connecting rod 214 inclined downward, the bottom of each connecting rod 214 is provided with a universal wheel 22 through a fixing screw 9, a plurality of vertical supporting rods 213 are arranged between the open end 211a and the closed end 211b of each U-shaped rod 211, the number of the supporting rods 213 is two, one supporting rod 213 is close to the open end 211a, and the other is; the wheel hub assembly 23 on the wheel chair 2 comprises a first wheel hub 231 and a second wheel hub 232 which are arranged in parallel at intervals, a plurality of lightening holes 234 are respectively arranged on the first wheel hub 231 and the second wheel hub 232, the lightening holes 234 are arranged on the first wheel hub 231 and the second wheel hub 232 and can lighten the weight of the wheel hub assembly 23, the lightening holes 234 on the first wheel hub 231 are circumferentially distributed around the center of the first wheel hub 231, the lightening holes 234 on the second wheel hub 232 are circumferentially distributed around the center of the second wheel hub 232, a first driving motor 5 is arranged on the inner side of the first wheel hub 231, an output shaft of the first driving motor 5 is fixedly connected with the center of the first wheel hub 231, a second driving motor 6 is arranged on the inner side of the second wheel hub 232, an output shaft of the second driving motor 6 is fixedly connected with the center of the second wheel hub 232, a connecting plate 233 is arranged between the first wheel hub 231 and the second wheel hub 232, lower side surfaces, the lower side surface of each U-shaped rod 211 is abutted and fixedly connected with the upper side surface of the connecting plate 233; the driving member 3 of the wheelchair 2 comprises an electro-hydraulic lever one 31, the electric hydraulic rod II 32 and the electric hydraulic rod III 33 are vertically arranged, the side face of the lower end of the electric hydraulic rod I31 is fixedly arranged at the center of the fixing plate 212 of the frame body 21, the middle part of the back face of the backup plate is fixedly provided with a connecting seat I31 a, the end part of a piston rod of the electric hydraulic rod I31 is hinged with the connecting seat I31 a, the end parts of the electric hydraulic rod II 32 and the electric hydraulic rod III 33 are respectively fixedly arranged on the U-shaped rods 211 at two sides of the frame body 21, the electric hydraulic rod II 32 and the electric hydraulic rod III 33 are distributed in parallel at intervals and are obliquely arranged facing the back of the leg plate 25, the connecting seat II 32a and the connecting seat III 33a are transversely and fixedly arranged at intervals in parallel, the end part of a piston rod of the electric hydraulic rod II 32 is hinged with the connecting seat II 32a, and the end part of; the wireless control module is respectively and electrically connected with the first driving motor 5, the second driving motor 6, the first electric hydraulic rod 31, the second electric hydraulic rod 32 and the third electric hydraulic rod 33.

Further, as shown in fig. 1 to 3 and 6, the other side of the seat plate 24 fixedly connected with the first handrail 27 is provided with the second handrail 28, the second handrail 28 is hinged with the seat plate 24 and provided with a clamping member for positioning the second handrail 28 on the seat plate 24, when the wheelchair 2 is used for going out, the second handrail 28 can swing to be parallel to and opposite to the first handrail 27 and is fixed by the clamping member, when the wheelchair 2 is required to be arranged in the gap 11 of the bed body 1, the upper end of the second handrail 28 can be rotated to be below the bed plate 15, the inner side of the gap 11 of the bed body 1 is provided with the first groove 12 for embedding the lower end part of the second handrail 28, the integrity of the wheelchair bed can be ensured, one end of the gap 11 of the bed body 1 is provided with the second groove 13, the upper middle part of the back plate 26 is provided with the neck plate 26a, the neck plate 26a can be embedded in the second groove 13, the wheelchair 2 and the bed body 1 are connected in a clamping groove manner, the connection, the connecting device can be a hook and the like, and the hook is manually buckled and connected after the wheelchair 2 is tiled, so that the connection between the wheelchair and the hook is firmer, and the method is simple and easy to operate; two sides of the lower end of the upper surface of each leg plate 25 are provided with a groove III 25a, each groove III 25a is internally provided with a foot placing plate 29, each leg plate 25 is hinged with each foot placing plate 29 through a pin I10, and the back plate 26 and the leg plate 25 are hinged with the seat plate 24 through a pin II 10 a.

The remote sensor 4 can also be made into a push rod or other shapes convenient for remote control, because the wheelchair 2 is electric, the wheelchair 2 can be taken out of a charger placed in an upper box of the wheelchair 2 after being connected with the bed body 1 and is connected with the bed body 1 for charging, the power failure of the wheelchair 2 in the use process is avoided, and the wheelchair can be continuously used as a common wheelchair 2 even if the wheelchair 2 is powered off, so that the wheel can not be blocked, and the safety of the user in travelling is guaranteed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A wheelchair bed is characterized by comprising a bed body (1) and a wheelchair (2), wherein one side of the bed body (1) is provided with a notch (11); the wheelchair (2) comprises a frame body (21), universal wheels (22) are arranged at the bottom of the front end of the frame body (21), a hub component (23) is arranged on the frame body (21) near the rear end, a seat plate (24) is fixedly arranged at the upper end of the frame body (21), the front end of the seat board (24) is hinged with a leg board (25) which inclines downwards and the rear end is hinged with a back board (26) which inclines upwards, the seat board (24) is as high as the gap (11) of the bed body (1), the frame body (21) is provided with a driving piece (3) which can be positioned and drive the leg plate (25) and the back plate (26) to lift, the wheelchair (2) is positioned in the gap (11), when the leg plate (25) and the back plate (26) are both flush with the seat plate (24), the leg plate (25), the seat plate (24) and the back plate (26) can be embedded in the gap (11) of the bed body (1); the wheelchair (2) is provided with a remote sensor (4) which can drive the wheelchair (2) and the driving piece (3) to act.

2. The wheelchair bed of claim 1, wherein the driving member (3) comprises a first electro-hydraulic rod (31), a second electro-hydraulic rod (32) and a third electro-hydraulic rod (33), the first electro-hydraulic rod (31) is vertically arranged, the side surface of the first electro-hydraulic rod is fixedly connected with the middle part of the rear end of the frame body (21) of the wheelchair (2), a first connecting seat (31a) is fixedly arranged in the middle part of the back surface of the back plate (26), and a piston rod of the first electro-hydraulic rod (31) is hinged to the first connecting seat (31 a); two (32) and three (33) parallel intervals of electric hydraulic stem set firmly on support body (21) of bedplate (24) below, two (32) and three (33) of electric hydraulic stem all face the back direction slope of leg plate (25), the correspondence at leg plate (25) back has set firmly connecting seat two (32a) and connecting seat three (33a), the piston rod of two (32) of electric hydraulic stem is articulated mutually with connecting seat two (32a), the piston rod of three (33) of electric hydraulic stem is articulated mutually with connecting seat three (33 a).

3. The wheelchair bed as claimed in claim 2, wherein the hub assembly (23) comprises a first hub (231) and a second hub (232) which are arranged in parallel at intervals, a connecting plate (233) is arranged between the first hub (231) and the second hub (232), a first driving motor (5) is arranged on the inner side of the first hub (231), an output shaft of the first driving motor (5) is fixedly connected with the center of the first hub (231), a second driving motor (6) is arranged on the inner side of the second hub (232), an output shaft of the second driving motor (6) is fixedly connected with the center of the second hub (232), and two ends of the connecting plate (233) are fixedly arranged on the upper side surfaces of the first driving motor (5) and the second driving motor (6) respectively.

4. The wheelchair bed as claimed in claim 3, wherein an audible and visual alarm (7) is fixedly arranged on the upper end surface of the connecting plate (233), and an alarm button (8) for triggering the audible and visual alarm (7) to give an alarm is arranged on the wheelchair (2).

5. The wheelchair bed of claim 4, wherein the remote sensor (4) controls the action of the first driving motor (5), the second driving motor (6), the first electro-hydraulic rod (31), the second electro-hydraulic rod (32) and the third electro-hydraulic rod (33) through a wireless control module, and the wireless control module is electrically connected with the first driving motor (5), the second driving motor (6), the first electro-hydraulic rod (31), the second electro-hydraulic rod (32) and the third electro-hydraulic rod (33) respectively; the alarm button (8) controls the operation of the audible and visual alarm (7) through the wireless control module, and the wireless control module is electrically connected with the audible and visual alarm (7).

6. The wheelchair bed as claimed in claim 5, wherein the frame body (21) comprises two parallel U-shaped rods (211) and an X-shaped fixing plate (212), the U-shaped rods (211) are arranged at intervals, the front end of each U-shaped rod (211) is an open end (211a), the rear end of each U-shaped rod is a closed end (211b), and two ends of each fixing plate (212) are fixedly arranged at the rear end of each U-shaped rod (211); a plurality of vertical support rods (213) are fixedly arranged between the open end (211a) and the closed end (211b) of each U-shaped rod (211) at intervals in parallel; every U-shaped pole (211) upper portion front end all sets firmly slope decurrent connecting rod (214), universal wheel (22) have two and set firmly respectively through set screw (9) two the bottom of connecting rod (214), connecting plate (233) with two the lower extreme looks rigid coupling of U-shaped pole (211).

7. The wheelchair bed as claimed in claim 6, wherein a first handrail (27) and a second handrail (28) are arranged in the middle of two sides of the seat plate (24), the remote sensor (4) and the alarm button (8) are fixedly arranged on the upper end surface of the first handrail (27) at intervals, a first groove (12) for embedding the lower end of the second handrail (28) is formed in one side of a notch (11) in the bed body (1), a neck plate (26a) is arranged in the middle of the upper end of the back plate (26), and a second groove (13) for embedding the neck plate (26a) is formed in one end of the notch (11) in the bed body (1).

8. The wheelchair bed as claimed in claim 7, wherein two sides of the lower end of the upper surface of the leg plate (25) are provided with three grooves (25a), each groove (25a) is embedded with a foot placing plate (29), and the two foot placing plates (29) are hinged with the leg plate (25) through a first pin shaft (10); the seat plate (24) is hinged with the leg plates (25) through a second pin shaft (10a), and the seat plate (24) is hinged with the back plate (26).

9. The wheelchair bed as claimed in claim 3 or 8, wherein the first hub (231) and the second hub (232) are provided with a plurality of lightening holes (234) with the same size, the lightening holes (234) on the first hub (231) are circumferentially distributed around the center of the first hub (231), and the lightening holes (234) on the second hub (232) are circumferentially distributed around the center of the second hub (232).

10. The wheelchair bed as claimed in claim 1 or 8, wherein the bed body (1) comprises a rectangular bed frame (14) and a bed board (15) fixed on the upper end of the bed frame (14), both ends of the bed board (15) are provided with bed baffles (16), the bed board (15) is as high as a seat board (24) on the wheelchair (2), a bed handrail (17) is arranged on the side of the bed board (15) opposite to the gap (11), and a plurality of casters (18) are arranged at the bottom of the bed frame (14).