CN213250560U - Wheelchair bed for helping old people - Google Patents

Abstract

The utility model relates to an old-helping wheelchair bed, belonging to the technical field of old-helping machines, in particular to a wheelchair bed; the bed body comprises a bed body and a wheelchair body, wherein the bed body comprises a bed body framework, a movable bed board and a bed tail bed board, the bed body framework is of a T-like structure, a guide rail is arranged on one side of the bed body framework, which is in contact with the movable bed board, the guide rail is L-shaped, the movable bed board is in sliding connection with the guide rail, and the movable bed board can perform lifting motion along the guide rail; two bed tail bed boards are oppositely arranged at one end of the bed body framework far away from the guide rail, and the bed tail bed boards are rotationally connected with the bed body framework; the wheelchair body is clamped between the movable bed board and the bed tail bed board, the movable bed board is clamped with one end of the wheelchair body, and the wheelchair body, the movable bed board and the bed tail bed board form a horizontal bed surface together. The utility model discloses wheelchair bed when changeing, the process is easy and simple to handle, need not other people and helps, uses manpower resources sparingly.

Description

Wheelchair bed for helping old people

Technical Field

The utility model belongs to the technical field of help old machine, especially, relate to a wheelchair bed.

Background

At present, to the old person who has old inconvenient legs and feet, when wanting to go out the activity, often need the help of wheelchair, but from the bed to ground, from the process of ground seat wheelchair again, the old person can not accomplish by oneself, still needs someone around to nurse, consumes manpower resources to a certain extent to there is certain dangerous possibility.

Among the prior art of similarity, mostly being used for the nursing field, the design is the security and the agility in the improvement nursing process for the convenience nursing staff operation, but still needs other people except the old man to operate, can not make above-mentioned old man have the ability of independently going out the activity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an old-person-assisting wheelchair bed which can realize the mutual conversion between a bed mode and a wheelchair mode and enable the old to go out and have a rest independently; form conversion operation is convenient, and the safety factor is high.

In order to achieve the above purpose, the utility model discloses a specific technical scheme of helping old wheelchair bed as follows:

an old-aged-people-assisting wheelchair bed comprises a bed body and a wheelchair body, wherein the bed body comprises a bed body framework, a movable bed board and a bed tail bed board, the bed body framework is of a T-like structure, a guide rail is arranged on one side of the bed body framework, which is in contact with the movable bed board, the guide rail is L-shaped, the movable bed board is in sliding connection with the guide rail, and the movable bed board can perform lifting motion along the guide rail;

two bed tail bed boards are oppositely arranged at one end of the bed body framework, which is far away from the guide rail, and the bed tail bed boards are rotationally connected with the bed body framework;

the wheelchair comprises a movable bed board, a bed tail bed board and a wheelchair body, wherein the wheelchair body is clamped between the movable bed board and the bed tail bed board, the movable bed board is clamped with one end of the wheelchair body, and the wheelchair body, the movable bed board and the bed tail bed board form a horizontal bed surface together.

Furthermore, at least two groups of roller groups are oppositely arranged on the movable bed board, the sliding directions of the two groups of roller groups are mutually vertical, and the two groups of roller groups are sleeved in the guide rail and slide along the guide rail;

a brake device is arranged between the movable bed board and the bed body framework.

Furthermore, arresting gear is including setting up annular lug on the activity bed board, and setting are in the annular groove of roller train one side, annular lug and annular groove shape are the same, the size matches, the edges and corners of annular groove and annular lug along the direction of rotation all is provided with the chamfer.

Further, the wheelchair body comprises a backrest bed board, a seat bed board, a leg protection bed board and a pedal bed board which are sequentially and rotatably connected, wherein hand protection bed boards are rotatably arranged on two sides of the seat bed board, and the backrest bed board, the seat bed board, the leg protection bed board, the pedal bed board, the hand protection bed board, the movable bed board and the bed tail bed board form a horizontal bed surface together;

the wheelchair comprises a bed body and is characterized in that a wheelchair framework is fixedly arranged under the seat bed board, a driving wheel set is arranged under the wheelchair framework, the driving wheel set is electrically connected with a controller, and the controller is arranged on the bed body or is handheld.

Further, the wheelchair framework comprises a support frame, a seat bed board is fixedly arranged at the top end of the support frame, connecting strips are oppositely arranged on two sides of the leg protection bed board, and one ends of the connecting strips, far away from the leg protection bed board, are rotatably connected with pedal bed boards;

one end of each L-shaped supporting block extends out of the supporting frame to be abutted against the leg protection bed plate, so that an included angle is formed between the leg protection bed plate and the seat bed plate;

the bottom of pedal bed board and support frame is connected and is provided with the parallelogram mechanism of can locking.

Further, but locking parallelogram mechanism is including fixed first fixed block, the fixed second fixed block that sets up in pedal bed board bottom that sets up in the support frame bottom, be connected through two sets of linkage strips between first fixed block and second fixed block, the one end of first fixed block is provided with the locking device, it is fixed that the locking device can carry out the joint to the linkage strip.

Further, the locking device comprises a third fixed block connected with the first fixed block, a guide sleeve is arranged at one end, far away from the linkage strip, of the third fixed block, a positioning rod is sleeved in the guide sleeve, limiting clamping blocks are integrally formed at two ends of the positioning rod, a telescopic spring is sleeved between the two limiting clamping blocks, and a positioning hole matched with the positioning rod is formed in one side, facing the guide sleeve, of the linkage strip.

Further, be provided with first stop device between seat bed board and wheelchair body, first stop device is including fixed setting up the spacing piece of seat bed board one side and the fixed spacing grip block that sets up on the wheelchair body, be provided with on the spacing grip block with spacing piece assorted clearance, spacing grip block one side threaded connection has the tight double-screw bolt of clamp, the tight double-screw bolt of clamp passes spacing grip block and inconsistent with spacing piece.

Further, be provided with second stop device between hand protector bed board and wheelchair body, second stop device is including fixed setting up the stopper of wheelchair body one side is in with the slip setting first spacing and the spacing of second in the hand protector bed board, first spacing and the spacing rotation of second are connected, hand protector bed board top be provided with the spacing assorted recess of placing of second, the stopper orientation one side of first spacing is provided with the spacing groove that holds first spacing.

Furthermore, at least one group of guardrail components are oppositely arranged at two ends of the bed body framework, a supporting block is fixedly arranged above the bed body framework, a first rotating shaft is arranged in the supporting block, the guardrail components are sleeved outside the first rotating shaft, and the guardrail components can rotate around the first rotating shaft by 0-180 degrees.

The utility model discloses a help old wheelchair bed has following advantage: according to the wheelchair bed for the old people, the bed body is spliced with the wheelchair, so that the old people can have independent outgoing capacity; meanwhile, in the process of mode conversion through an ingenious mechanical structure, except for manpower, all energy is provided by the wheelchair, so that the energy consumption is reduced; the whole process is simple and convenient to operate, does not need assistance of others, and saves human resources.

Drawings

Fig. 1 is a first usage state diagram of the wheelchair bed for old people of the present invention.

Fig. 2 is a second usage state diagram of the wheelchair bed for old people of the present invention.

Fig. 3 is a third usage state diagram of the wheelchair bed for old people of the present invention.

Fig. 4 is a first usage state diagram of the wheelchair bed for old people of the present invention.

Fig. 5 is a first usage state diagram of the wheelchair bed for old people of the present invention.

Fig. 6 shows a first usage state of the movable bed board and the bed frame of the wheelchair bed for helping the aged.

Fig. 7 shows a second usage state of the movable bed board and the bed frame of the wheelchair bed for helping the aged to cooperate with each other.

Fig. 8 is a partial enlarged view of fig. 7 at a.

Fig. 9 is a partial enlarged view of fig. 7 at B.

Fig. 10 is a schematic view of a wheelchair body and a lockable parallelogram mechanism of an old-person-assisted wheelchair bed in embodiment 2.

FIG. 11 is a first view of the locking parallelogram mechanism of the wheelchair bed of embodiment 2.

FIG. 12 is a second diagram of the locking parallelogram mechanism of the wheelchair bed of embodiment 2.

Fig. 13 is a schematic structural view of a wheelchair body and a second limiting device of an old-person-assisted wheelchair bed in embodiment 3.

Figure 14 is a top view of a wheelchair body with a second limiting device in embodiment 3 of an assisted-aging wheelchair bed.

Fig. 15 is a sectional view in the direction a-a of fig. 14.

Fig. 16 is a schematic structural view of a second limiting device in an old-person-assisted wheelchair bed in embodiment 3.

Fig. 17 is a schematic structural view of a first limiting device matched with a wheelchair body in an embodiment 4 of an assisted wheelchair bed.

Fig. 18 is a schematic structural view of a first limiting device in an assisted wheelchair bed in embodiment 4.

The notation in the figure is: 1. a bed body; 101. a bed body framework; 102. a movable bed board; 103. bed board at the tail of bed; 2. a wheelchair body; 201. a backrest bed plate; 202. a chair bed board; 203. a leg protection bed plate; 204. A pedal bed board; 205. a bed board is protected; 206. a wheelchair frame; 20601. a support frame; 20602. a roller sleeve; 20603. an L-shaped support block; 207. a driving wheel set; 2071. a driving roller; 2072. a driven roller; 208. a connecting strip; 209. a control box; 300. a supporting strip; 3. a guide rail; 4. a guardrail assembly; 5. a support block; 6. a first limiting device; 601. a limiting sheet; 602. a limiting clamping block; 603. a gap; 604. clamping the stud; 7. a baffle plate; 8. a roller set; 9. a braking device; 91. an annular projection; 92. An annular groove; 10. a second limiting device; 1001. a limiting block; 1002. a first limit strip; 1003. a second limit strip; 1004. placing a groove; 1005. a limiting groove; 11. the parallelogram mechanism can be locked; 111. A first fixed block; 112. a second fixed block; 113. a linkage bar; 114. a locking device; 1141. a third fixed block; 1142. a guide sleeve; 1143. positioning a rod; 1144. a tension spring; 115. and (7) positioning the holes.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description will be made in detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-9, the utility model relates to an old-person-assisting wheelchair bed, which comprises a bed body 1 and a wheelchair body 2, wherein the bed body 1 comprises a bed body frame 101, a movable bed board 102 and a bed tail bed board 103, the bed body frame 101 is of a type T configuration, a guide rail 3 is arranged on one side of the bed body frame 101 contacting with the movable bed board 102, the guide rail 3 is of an L shape, the movable bed board 102 is slidably connected with the guide rail 3, and the movable bed board 102 can move up and down along the guide rail 3, so as to control the included angle between the movable bed board 102 and the bed body frame 101, and adapt to the needs of patients or old people sitting or lying on the bed;

two bed tail bed plates 103 are oppositely arranged at one end, far away from the guide rail 3, of the bed body framework 101, the bed tail bed plates 103 are rotatably connected with the bed body framework 101, and the two bed tail bed plates 103 which are oppositely arranged rotate around the bed body framework 101 so as to facilitate the exit of the wheelchair;

the wheelchair body 2 is clamped between the movable bed board 102 and the bed tail board 103, the movable bed board 102 is clamped with one end of the wheelchair body 2, in the embodiment, the backrest board 201 and the movable bed board 102 can be clamped with each other as mentioned below, the specific scheme is that a clamping block is arranged at the top end of the backrest board 201, a groove is arranged at one end of the movable bed board 102, which is contacted with the backrest board 201, and the clamping block and the groove are matched to realize the clamping connection of the backrest board 201 and the movable bed board 102, the wheelchair body 2, the movable bed board 102 and the bed tail board 103 together form a horizontal bed surface, at least one group of guardrail assemblies 4 are oppositely arranged at two ends of the bed body framework 101, a supporting block 5 is fixedly arranged above the bed body framework 101, a first rotating shaft is arranged in the supporting block 5, the guardrail assemblies 4 are sleeved outside the first rotating shaft, and the guardrail assemblies 4 can rotate around the first rotating shaft by 0, through this kind of mode, change the position of guardrail subassembly 4 on bed body skeleton 101 to satisfy the different demand of patient, the outside of bed body skeleton 101 still is provided with baffle 7, baffle 7 highly be less than guardrail subassembly 4's height far away blocks the skew bed body skeleton 101 of guardrail subassembly 4 through baffle 7.

In this embodiment, at least two sets of roller groups 8 are oppositely arranged on the movable bed board 102, the sliding directions of the two sets of roller groups 8 are perpendicular to each other, and the two sets of roller groups 8 are sleeved in the guide rail 3 and slide along the guide rail 3;

a brake device 9 is also arranged between the movable bed plate 102 and the bed body framework 101.

In this embodiment, the braking device 9 includes an annular protrusion 91 disposed on the movable bed plate 102, and an annular groove 92 disposed on one side of the roller set 8, the annular protrusion 91 and the annular groove 92 have the same shape and are matched in size, and corners of the annular groove 92 and the annular protrusion 91 along the rotation direction are both provided with chamfers, so that when the movable bed plate 102 moves upward under the driving of the wheelchair body 2, the movable bed plate 102 rotates around the roller set 8, and at this time, the annular protrusion 91 and the annular groove 92 rotate in a meshing manner, so that when the assistance is applied to the wheelchair body 2, the annular protrusion 91 rotates around the annular groove 92, and the movable bed plate 102 moves upward or downward, when the wheelchair body 2 stops acting force, due to the meshing of the annular cam and the annular groove 92, the movable bed plate 102 is stabilized at the angle, can not slide down under the action of gravity.

In the present embodiment, the wheelchair body 2 includes a backrest bed plate 201, a seat bed plate 202, a leg protection bed plate 203 and a pedal bed plate 204 which are rotatably connected in sequence, hand protection bed plates 205 are rotatably arranged on two sides of the seat bed plate 202, and the backrest bed plate 201, the seat bed plate 202, the leg protection bed plate 203, the pedal bed plate 204 and the hand protection bed plates 205, the movable bed plate 102 and the tailstock bed plate 103 form a horizontal bed surface together;

fixed wheelchair skeleton 206 that is provided with under seat bed board 202, be provided with drive wheelset 207 under wheelchair skeleton 206, drive wheelset 207 and controller electric connection, the controller sets up on bed body 1 or handheld.

In this embodiment, two hand guard bed boards 205 are inconsistent with bed body skeleton 101, the one end that guide rail 3 was kept away from to bed body skeleton 101 is provided with second pivot 10, it is provided with tailstock bed board 103 to rotate on the second pivot 10.

In this embodiment, the wheelchair frame 206 includes a support frame 20601, a seat bed plate 202 is fixedly disposed at the top end of the support frame 20601, connecting bars 208 are oppositely disposed at two sides of the leg guard bed plate 203, and a pedal bed plate 204 is rotatably connected to one end of each connecting bar 208 far away from the leg guard bed plate 203;

a roller sleeve 20602 is arranged on one side below the supporting frame 20601, a pair of L-shaped supporting blocks 20603 is oppositely arranged at the other end of the supporting frame 20601, and one end of each L-shaped supporting block 20603 extends out of the supporting frame 20601 to be abutted against the leg protection bed plate 203, so that an included angle is formed between the leg protection bed plate 203 and the seat bed plate 202;

in this embodiment, the bottom end of the connecting bar 208 is provided with a supporting bar 300, the supporting bar 300 abuts against the bed-tail bed board 103, and the supporting bar 300 is integrally formed at the bottom end of the connecting bar 208; or the bottom end of the connecting bar 208 is hinged with the supporting bar 300 through a hinge.

In this embodiment, a driving roller 2071 is sleeved in the roller sleeve 20602, the driving roller 2071 rotates in the roller sleeve 20602, and a driven roller 2072 is rotatably connected to the positions right below the two L-shaped supporting blocks 20603.

Example 2:

as shown in fig. 10-12, the bottom ends of the pedal plate 204 and the supporting frame 20601 are connected to each other to form a lockable parallelogram mechanism 11, the bottom end of the supporting frame 20601 is further provided with a control box 209, and the control box 209 is provided with a driving device for driving a driving roller 2071 to rotate or lock.

In this embodiment, the lockable parallelogram mechanism 11 includes a first fixed block 111 fixedly disposed at the bottom end of the supporting frame 20601, and a second fixed block 112 fixedly disposed at the bottom end of the pedal bed board 204, the first fixed block 111 and the second fixed block 112 are connected via two sets of linkage bars 113, one end of the first fixed block 111 is provided with a locking device 114, and the locking device 114 can clamp and fix the linkage bars 113.

In this embodiment, the locking device 114 includes a third fixed block 1141 connected to the first fixed block 111, a guide sleeve 1142 is disposed at one end of the third fixed block 1141 away from the linkage bar 113, a positioning bar 1143 is sleeved in the guide sleeve 1142, two ends of the positioning bar 1143 are integrally formed with a limiting clamping block 602, a telescopic spring 1144 is sleeved between the two limiting clamping blocks 602, and a positioning hole 115 matched with the positioning bar 1143 is disposed at one side of the linkage bar 113 facing the guide sleeve 1142; when the sickbed needs to be deformed into a wheelchair, one hand holds one end of the positioning rod 1143 and pulls the positioning rod outwards, so that the other end of the positioning rod 1143 is separated from the positioning hole 115, under the action of gravity and the action of the lockable parallelogram mechanism 11, the pedal bed plate 204 and the second fixing block 112 move downwards, and meanwhile, the leg protection bed plate 203 also moves downwards under the driving of the connecting strip 208, and finally the sickbed is deformed into a wheelchair; when the wheelchair needs to be transformed into a sickbed, the pedal bed plate 204 is held by hand and lifted to be at the same level with the movable bed plate 102, meanwhile, one end of the positioning rod 1143 is held by hand and pulled outwards until the linkage bar 113 rotates to the horizontal position, and when the positioning hole 115 is close to the positioning rod 1143, the hand is released, the spring restores to deform, and the other end of the positioning rod 1143 is driven to be clamped in the positioning hole 115 so as to limit the linkage bar 113 to be kept in the horizontal direction.

Example 3:

as shown in fig. 13-16, a first limiting device 6 is disposed between the seat bed plate 202 and the wheelchair body 2, the first limiting device 6 includes a limiting piece 601 fixedly disposed on one side of the seat bed plate 202, and a limiting clamping block 602 fixedly disposed on the wheelchair body 2, a gap 603 matched with the limiting piece 601 is disposed on the limiting clamping block 602, a clamping stud 604 is connected to one side of the limiting clamping block 602 by a thread, the clamping stud 604 passes through the limiting clamping block 602 and contacts with the limiting piece 601, in this embodiment, two first limiting devices 6 are disposed oppositely; when the wheelchair is changed into a bed, the clamping stud 604 is manually loosened, the clamping stud 604 is unlocked, the limiting piece 601 is unlocked, the backrest bed plate 201 is held by hand to rotate downwards until the backrest bed plate 201 and the seat bed plate 202 are positioned on the same horizontal plane; when the bed needs to be changed into a wheelchair, the backrest bed plate 201 is held by hand to move upwards, the limiting piece 601 slides in the gap 603 at the moment, and when the backrest bed plate 201 and the seat bed plate 202 are at a proper clamping angle, the clamping stud 604 is screwed, so that the clamping stud 604 locks the limiting piece 601, and the backrest bed plate 201 is kept stable at a specified position.

Example 4:

as shown in fig. 17 to 18, a second limiting device 10 is arranged between the hand guard bed board 205 and the wheelchair body 2, the second limiting device 10 includes a limiting block 1001 fixedly arranged on one side of the wheelchair body 2, and a first limiting strip 1002 and a second limiting strip 1003 slidably arranged in the hand guard bed board 205, the first limiting strip 1002 and the second limiting strip 1003 are rotatably connected, a placing groove 1004 matched with the second limiting strip 1003 is arranged at the top end of the hand guard bed board 205, a limiting groove 1005 for accommodating the first limiting strip 1002 is arranged on one side of the limiting block facing the first limiting strip 1002, the top end of the limiting block 1001 is abutted against the bottom end of the hand guard bed board 205, and the hand guard bed board 205 and the seat bed board 202 are at the same level; when the bed is changed into a wheelchair, the hand-held hand guard bed plate 205 rotates upwards to the vertical direction, the second limiting strip 1003 is pulled upwards, at the moment, the first limiting strip 1002 and the second limiting strip 1003 slide downwards under the action of gravity, and one end of the first limiting strip 1002 is clamped into the limiting groove 1005 so as to stabilize the hand guard bed plate 205 in the vertical direction; when the wheelchair becomes a bed, the second limiting strip 1003 is held by the hand, the chair is lifted upwards, the top end of the first limiting strip 1002 is further driven to be separated from the limiting groove 1005, so that locking between the first limiting strip 1002 and the limiting groove 1005 is removed, the hand guard bed board 205 can rotate downwards at the moment until the bottom end of the hand guard bed board 205 is abutted to the top end of the limiting block 1001, and the hand guard bed board 205 and the chair bed board 202 are on the same horizontal plane.

The working principle is as follows:

the wheelchair can be also provided with a remote controller, and the remote controller is used for controlling the wheelchair to move forwards or backwards;

the wheelchair body 2 is controlled to move towards the direction close to the bed body framework 101, so that the backrest bed plate 201 and the bed head bed plate can slide along the fixed guide rail 3 together, and the sitting function is achieved;

the hand guard bed plate 205 is put down and fixed with the bed body framework 101, the bed tail bed plate 103 is rotated to be horizontal, the position of the wheelchair body 2 is controlled, the angle of the movable bed plate 102 is adjusted, after the wheelchair runs to a specified position, the wheelchair driving device is stopped through remote control, and the wheelchair is in a bed mode for the old to rest and sleep;

the conversion between the bed mode and the wheelchair mode is realized through the series of operations, and the operation is convenient for the old to use. During the form transformation, the method does not need the side assistance of others, is independently completed, and does not have complicated operation. The wheelchair bed for the old can help the old to be physically inconvenient and psychologically help the old to a certain extent.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (10)

1. The wheelchair bed for helping the old is characterized by comprising a bed body (1) and a wheelchair body (2), wherein the bed body (1) comprises a bed body framework (101), a movable bed board (102) and a bed tail bed board (103), the bed body framework (101) is of a T-like structure, a guide rail (3) is arranged on one side, in contact with the movable bed board (102), of the bed body framework (101), the guide rail (3) is of an L shape, the movable bed board (102) is in sliding connection with the guide rail (3), and the movable bed board (102) can perform lifting motion along the guide rail (3);

two bed tail bed plates (103) are oppositely arranged at one end, far away from the guide rail (3), of the bed body framework (101), and the bed tail bed plates (103) are rotatably connected with the bed body framework (101);

the wheelchair is characterized in that a wheelchair body (2) is clamped between the movable bed board (102) and the bed tail bed board (103), the movable bed board (102) is clamped with one end of the wheelchair body (2), and the wheelchair body (2), the movable bed board (102) and the bed tail bed board (103) jointly form a horizontal bed surface.

2. The elderly-assisting wheelchair bed as claimed in claim 1, wherein the movable bed board (102) is relatively provided with at least two groups of roller sets (8), the sliding directions of the two groups of roller sets (8) are perpendicular to each other, and the two groups of roller sets (8) are sleeved in the guide rail (3) and slide along the guide rail (3);

a brake device (9) is also arranged between the movable bed plate (102) and the bed body framework (101).

3. The elderly-assisting wheelchair bed as claimed in claim 2, wherein the brake device (9) comprises an annular projection (91) arranged on the movable bed board (102) and an annular groove (92) arranged on one side of the roller set (8), the annular projection (91) and the annular groove (92) have the same shape and are matched in size, and corners of the annular groove (92) and the annular projection (91) in the rotation direction are provided with chamfers.

4. The wheelchair bed for helping the aged according to any one of claims 1-3, wherein the wheelchair body (2) comprises a backrest bed plate (201), a seat bed plate (202), a leg protection bed plate (203) and a foot bed plate (204) which are rotatably connected in sequence, the hand protection bed plate (205) is rotatably arranged on two sides of the seat bed plate (202), and the backrest bed plate (201), the seat bed plate (202), the leg protection bed plate (203), the foot bed plate (204) and the hand protection bed plate (205) form a horizontal bed surface together with the movable bed plate (102) and the tailstock bed plate (103);

the wheelchair is characterized in that a wheelchair framework (206) is fixedly arranged under the seat bed plate (202), a driving wheel set (207) is arranged under the wheelchair framework (206), the driving wheel set (207) is electrically connected with the controller, and the controller is arranged on the bed body (1) or is handheld.

5. The elderly-assisting wheelchair bed as claimed in claim 4, wherein the wheelchair frame (206) comprises a supporting frame (20601), a seat bed plate (202) is fixedly arranged at the top end of the supporting frame (20601), connecting strips (208) are oppositely arranged at two sides of the leg protection bed plate (203), and a pedal bed plate (204) is rotatably connected to one end, far away from the leg protection bed plate (203), of each connecting strip (208);

one side below the supporting frame (20601) is provided with a roller sleeve (20602), the other end of the supporting frame is oppositely provided with a pair of L-shaped supporting blocks (20603), one end of each L-shaped supporting block (20603) extends out of the supporting frame (20601) to be abutted against the leg guard bed plate (203), and an included angle is formed between the leg guard bed plate (203) and the seat bed plate (202);

the bottom ends of the pedal bed plate (204) and the supporting frame (20601) are connected with a lockable parallelogram mechanism (11).

6. The old-helping wheelchair bed as claimed in claim 5, wherein the lockable parallelogram mechanism (11) comprises a first fixed block (111) fixedly arranged at the bottom end of the supporting frame (20601) and a second fixed block (112) fixedly arranged at the bottom end of the pedal bed plate (204), the first fixed block (111) and the second fixed block (112) are connected through two sets of linkage bars (113), one end of the first fixed block (111) is provided with a locking device (114), and the locking device (114) can clamp and fix the linkage bars (113).

7. The old-helping wheelchair bed as claimed in claim 6, wherein the locking device (114) comprises a third fixing block (1141) connected with the first fixing block (111), a guide sleeve (1142) is arranged at one end of the third fixing block (1141) far away from the linkage bar (113), a positioning bar (1143) is sleeved in the guide sleeve (1142), limiting clamping blocks (602) are integrally formed at two ends of the positioning bar (1143), a telescopic spring (1144) is sleeved between the two limiting clamping blocks (602), and a positioning hole (115) matched with the positioning bar (1143) is arranged at one side of the linkage bar (113) facing the guide sleeve (1142).

8. The elderly-assisting wheelchair bed as claimed in claim 4, wherein a first limiting device (6) is arranged between the seat bed board (202) and the wheelchair body (2), the first limiting device (6) comprises a limiting piece (601) fixedly arranged on one side of the seat bed board (202) and a limiting clamping block (602) fixedly arranged on the wheelchair body (2), a gap (603) matched with the limiting piece (601) is arranged on the limiting clamping block (602), a clamping stud (604) is in threaded connection with one side of the limiting clamping block (602), and the clamping stud (604) penetrates through the limiting clamping block (602) and is abutted against the limiting piece (601).

9. The elderly-assisting wheelchair bed as claimed in claim 4, wherein a second limiting device (10) is arranged between the hand-guard bed plate (205) and the wheelchair body (2), the second limiting device (10) comprises a limiting block (1001) fixedly arranged on one side of the wheelchair body (2), a first limiting strip (1002) and a second limiting strip (1003) which are slidably arranged in the hand-guard bed plate (205), the first limiting strip (1002) and the second limiting strip (1003) are rotatably connected, a placing groove (1004) matched with the second limiting strip (1003) is arranged at the top end of the hand-guard bed plate (205), and a limiting groove (1005) for accommodating the first limiting strip (1002) is arranged on one side of the limiting block (1001) facing the first limiting strip (1002).

10. The wheelchair bed for helping the aged according to claim 1, wherein at least one set of guardrail components (4) are oppositely arranged at two ends of the bed body framework (101), a supporting block (5) is fixedly arranged above the bed body framework (101), a first rotating shaft is arranged in the supporting block (5), the guardrail components (4) are sleeved outside the first rotating shaft, and the guardrail components (4) can rotate around the first rotating shaft by 0-180 degrees.

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