CN114224626A

CN114224626A - Wheel chair

Info

Publication number: CN114224626A
Application number: CN202111646125.8A
Authority: CN
Inventors: 陈王丽; 韩瑞璋; 施丽华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-03-25

Abstract

The invention discloses a wheelchair, and relates to the technical field of medical instruments. The chair comprises a chair and a moving part arranged at the lower part of the chair, wherein the chair comprises a bearing part, a backrest and armrests, the armrests and the backrest are arranged on the bearing part, and the armrests are arranged to rotate around the bearing part; the handrail is provided with a guide groove, the bearing part is further provided with a cushion piece, the bottom of the cushion piece is provided with a movable limiting piece, and when the handrail is unfolded, the cushion piece can move out of the bearing part along the direction of the guide groove. The wheelchair can meet the daily use requirements of the paralyzed patient on the wheelchair, the wheelchair can also facilitate the paralyzed patient to get on or off the vehicle, and a caregiver can directly push the wheelchair cushion onto the seat in the vehicle or push the paralyzed patient and the wheelchair cushion onto the wheelchair of the invention from the inside of the vehicle so as to facilitate the paralyzed patient to get on or off the vehicle.

Description

Wheel chair

Technical Field

The invention relates to the technical field of medical instruments, in particular to a wheelchair which is convenient for a paralyzed patient to sit or get to bed.

Background

The patients with the hemiparalysis and the lower limb paralysis need to use the wheelchair to meet the requirements of daily activities and trips. However, the patients with hemiplegia or paraplegia have poor mobility, so that the patients need the help of accompanying personnel or family members when sitting on a car, going to bed and having a rest, and the accompanying personnel or family members generally hold the patients with paralysis to transfer the patients to the bed or the car, which is laborious, and the patients with hemiplegia easily bump into the top of the car or the edge of the bed body, so that the patients receive secondary injuries.

Patent No. CN201910699515.8 discloses a patent of the same day invention named as a safety wheelchair capable of easily performing the operation of transferring human body between beds or family cars, the armrest and backrest of the device can both rotate to make the whole wheelchair spread out, and the armrest backrest and the wheelchair seat are both equipped with rolling bars to reduce the resistance when the human body is pushed to transfer, thereby reducing the difficulty of getting on or getting on the bed for the paralyzed patient.

However, the wheelchair device is still very inconvenient for the paralyzed patient to use when the paralyzed patient is sitting in the vehicle. Firstly, when a paralyzed patient is transferred between a vehicle and a wheelchair, the paralyzed patient needs to lie flat and enter the vehicle in a head entering mode, the posture of the patient is adjusted to lie flat before getting on the vehicle, the posture of the patient is adjusted to a sitting posture again after getting on the vehicle, the patient is adjusted back and forth between the lying posture and the sitting posture, the difficulty of adjusting the posture of the patient by a caregiver in the vehicle is high, and the operation is complicated. Secondly, when the paralyzed patient is pushed on the unfolded wheelchair, the position of the wheelchair relative to the vehicle needs to be further fixed by using a human body safety belt, the fixing mode of the belt is not firm enough, the wheelchair can still move, and the patient still collides with the frame edge in the process of pushing the patient to move into the vehicle on the wheelchair, so that the safety is low. Thirdly, the whole structure of the wheelchair is complex, for example, the device uses a plurality of rolling bars as supporting bars in the moving process of the human body to reduce the pushing resistance of the patient, but the arrangement of the rolling bars on the wheelchair makes the structure of the wheelchair complex, and the weight of the wheelchair becomes large, so that the wheelchair is inconvenient to carry and the comfort level is reduced, and the discomfort is obvious when the patient is pushed to move on the rolling bars.

Disclosure of Invention

The invention provides a wheelchair which is used for facilitating getting on and off of a paralyzed patient, and a caregiver can directly push a wheelchair cushion onto a seat in a vehicle or push the paralyzed patient and the wheelchair cushion onto the wheelchair of the invention from the inside of the vehicle so as to facilitate getting on or off of the paralyzed patient and solve the problems.

The technical scheme for solving the problems is as follows: the wheelchair comprises a seat and a moving part arranged at the lower part of the seat, wherein the seat comprises a bearing part, a backrest and armrests, the armrests and the backrest are arranged on the bearing part, and the armrests are arranged to rotate around the bearing part; the handrail is provided with a guide groove, the bearing part is further provided with a cushion piece, the bottom of the cushion piece is provided with a movable limiting piece, and when the handrail is unfolded, the cushion piece can move out of the bearing part along the direction of the guide groove.

Further, the handrail includes railing subassembly and hand rest baffle, the guide spout is seted up on the railing subassembly, hand rest baffle installs on the railing subassembly. The hand support baffle can support hands so as to reduce the use fatigue of the wheelchair and improve the use comfort of the wheelchair; in addition, after the armrests are laid down and tiled, the hand support baffle can be hung on the inner side of the seat in the automobile to form a hook claw-shaped structure, so that the wheelchair is prevented from moving when a wheelchair user is transferred.

Further, still including the universal joint, the universal joint includes universal bulb and bulb groove spare, bulb groove spare is fixed to be set up in supporting portion limit portion position, universal bulb sets firmly on the handrail, universal bulb sets up in bulb groove spare. The universal joint connection structure can guarantee that the handrail can swing to any direction around the supporting part, and after a patient sits on the seat in the vehicle, the user can swing the handrail in the horizontal plane to move out from between the seat cushion piece and the seat in the vehicle, so that a caregiver can conveniently store the wheelchair.

Furthermore, a plurality of armrests are symmetrically arranged on two sides of the backrest, a plurality of fixing structures are arranged on the backrest, and the armrests rotate to the positions which are in contact with the backrest in the opposite direction and are fixed by the fixing structures so as to form a protection structure on the bearing part. When the armrests are erected, the fixed structure can be fixedly connected with the armrests and the backrest, so that the armrests and the backrest are combined to form a three-surface enclosure structure to protect the safety of patients on the wheelchair.

Furthermore, the fixing structure comprises a first fixing hole formed in the armrest, a second fixing hole formed in the backrest, a fixing screw rod and a fixing nut, when the armrest rotates to abut against the back, the first fixing hole and the second fixing hole are overlapped, and the fixing screw rod penetrates through the two fixing holes to fixedly connect the backrest and the armrest; the fixing nut and the fixing screw are of detachable fixing structures, and therefore nursing staff can conveniently adjust the position and the posture of the handrail.

Furthermore, the bearing part is further provided with a containing groove used for containing the movable limiting part, and the containing groove is communicated with the guide groove. When the cushion piece is positioned on the supporting part, the movable limiting piece is contained in the containing groove to limit the cushion piece and the supporting part, so that the cushion piece is prevented from sliding relative to the supporting part and influencing patients on the wheelchair.

Further, the moving part comprises an I-shaped moving bracket and a plurality of supporting rollers arranged on the moving bracket; still install scalable support column on the movable support, seat fixed mounting is in the upper end department of scalable support column. The seat is adjustable in height through the telescopic support columns so as to adapt to the height of the seat in the vehicle, and therefore a caregiver can conveniently push the cushion piece.

Further, scalable support column sets up to electric telescopic handle, the power supply of scalable support column is portable power source, the power supply installation sets up on the movable support. The telescopic support column can be supported to extend or shorten a power source to be a power source, the energy is clean, and the telescopic support column is convenient to control.

Furthermore, a rack is further installed in the guide groove, and the movement limiting part is correspondingly arranged as a gear. When the cushion part slides along the direction of the guide groove, the movable limiting part of the gear structure at the bottom of the cushion part can be meshed with the rack in the guide groove to be connected, so that the sliding abrasion is reduced, and the movable limiting part can be prevented from slipping in the guide groove to influence the safety of a patient on the cushion part.

Further, the railing assembly comprises a first railing and a second railing inserted on the first railing, and the second railing moves relative to the first railing to adjust and change the overall height of the railing assembly; the overall height of the railing assembly is adjustable so that a caregiver can conveniently lean the handrail on seats of different sizes in different types of vehicles.

The guide grooves are formed in the first handrail and the second handrail and are axially arranged on the handrails and communicated with each other.

The invention has the beneficial effects that:

according to the wheelchair, the paralyzed patient uses the device to perform daily activities, and particularly when the patient sits on the wheelchair, the paralyzed patient can be conveniently transferred between the wheelchair and the seat.

When a paralyzed patient using the wheelchair needs to sit, a caregiver only needs to unlock the armrest on one side of the wheelchair at the getting-on position of the patient, swing the armrest to lean against the seat in the vehicle, and then push the cushion piece to move to the seat in the vehicle along the armrest by a single person. On the premise that the upper limbs of the paralyzed patient have the mobility, the patient can even push the patient to move to the seat in the vehicle by himself, and a nursing person only needs to store the folding wheelchair.

When a paralyzed patient uses the wheelchair to sit, the difficulty in sitting the wheelchair is greatly reduced, a caregiver does not need to hold the patient to transfer the patient into the wheelchair, and the posture of the patient does not need to be adjusted for many times.

In addition, the wheelchair with the device has a relatively simple structure and is very convenient to operate and maintain.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

FIG. 1 is a schematic view of the overall structure of a wheelchair according to an embodiment of the present invention;

FIG. 2 is a schematic view of a handrail structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of a universal connection structure between the armrest and the supporting portion according to an embodiment of the present invention (an enlarged view of a portion of FIG. 1);

FIG. 4 is a schematic view of a supporting portion according to an embodiment of the present invention;

FIG. 5 is an enlarged partial schematic view of FIG. 2;

FIG. 6 is a schematic view of a cushion member according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a fixing structure according to an embodiment of the present invention;

1-seat, 2-moving part, 3-bearing part, 4-backrest, 5-handrail, 6-guide groove, 7-cushion part, 8-moving limiting part, 9-railing component, 10-hand rest baffle, 11-universal joint, 11A-universal ball head, 11B-ball head groove part, 12-fixing structure, 13-first fixing hole, 14-second fixing hole, 15-fixing screw rod, 16-fixing nut, 17-accommodating groove, 18-moving bracket, 19-supporting roller, 20-telescopic supporting column, 21-power supply, 22-rack, 23-first railing and 24-second railing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Referring to fig. 1, a wheelchair according to an embodiment of the present invention includes a seat 1, a moving member 2 disposed at a lower portion of the seat 1; the wheelchair comprises a supporting part 3, a backrest 4 and armrests 5, and the moving part 2 comprises a moving bracket 18, a supporting roller 19 and a telescopic supporting column 20. In this embodiment, the supporting portion 3 is a main platform for supporting the paralyzed patient on the chair 1, the backrest 4 and the armrest 5 are both rotatably connected to the edge of the supporting portion 3, the backrest 4 is only hinged to the edge of the supporting portion 3, and the armrest 5 is connected to the supporting portion 3 through the universal joint 11. The supporting part 3 is provided with a cushion piece 7, and the handrail 5 can swing; when the armrests 5 are swung to a position flush with the rest 3, the cushion member 7 can be pushed along the armrests 5 to leave the wheelchair of the device in the direction of the armrests 5, and the sprung patient sitting on the cushion member 7 can follow the cushion member 7. When the paralyzed patient sits on the wheelchair, the paralyzed patient can completely follow the operation mode by moving the paralyzed patient from the wheelchair to the seat 1 in the vehicle, and the nursing personnel does not need to hold the paralyzed patient from the wheelchair and transfer the paralyzed patient into the vehicle.

When the backrest 4 and the armrests 5 swing to contact with each other, the backrest 4 and the armrests 5 are fixedly connected through the fixing structures 12, so that a stable enclosing protection structure can be formed on the seat 1, and the armrests 5 and the backrest 4 in normal use of the wheelchair can be formed.

The seat 1 is installed above the moving part 2, the upper end of the retractable support column 20 is fixedly connected to the supporting part 3, the lower end of the retractable support column 20 is fixedly connected to the center of the moving bracket 18, and the retractable support column 20 is vertically installed. The telescopic supporting column 20 is an electric telescopic rod, the electric telescopic rod can extend or shorten under the support of a power supply, and a power supply 21 provided for the telescopic supporting column 20 is detachably mounted on the movable support 18. The moving bracket 18 is integrally I-shaped, and four supporting rollers 19 are uniformly arranged at the bottom of the moving bracket 18, so that a caregiver can push the wheelchair or the wheelchair can move conveniently.

The nursing person electrically controls the retractable support column 20 to extend or shorten, so that the support part 3 is flush with the seat 1 in the vehicle, the nursing person can push the cushion part 7 and paralyzed patients on the cushion part 7 to move in parallel between the support part 3 and the seat 1 in the vehicle, and the physical strength is saved.

In addition, the conventional wheelchair has large wheels, that is, wheels for the paralyzed patient to push the wheelchair to move, but the embodiment and the corresponding drawings show the same, and the related technical means can be understood by the conventional technical means or the prior art, and the embodiment is not described too much.

Referring to fig. 2, in the present embodiment, specifically, the handrail 5 includes a handrail assembly 9 and a hand rest baffle 10, and two handrails 5 are disposed on two sides of the backrest 4 respectively in the present embodiment; furthermore, each handrail 5 is composed of two balustrade assemblies 9 and a hand rest board 10, and the two balustrade assemblies 9 are connected side by side to the hand rest board 10. Each balustrade assembly 9 comprises a first balustrade 23 and a second balustrade 24, the second balustrade 24 is inserted into the first balustrade 23, and the second balustrade 24 moves axially relative to the first balustrade 23 to adjust the overall height of the handrail 5.

The hand support baffle 10 is used for supporting the arm of the paralytic, and the hand support baffle 10 is arranged at the upper end part of the first railing 23; the hand-held baffle 10 can be provided with a socket for inserting one end of the first rail 23 therein, so as to achieve the purpose of detachably mounting and connecting the hand-held baffle 10 and the rail assembly 9. The diameter of the insertion hole seat is smaller than that of the first handrail 23, so that the first handrail 23 can be tightly connected with the hand holding baffle 10 when inserted into the insertion hole seat, and the hand holding baffle 10 can be taken away from the handrail assembly 9 if necessary. For example, when the seat cushion member 7 is moved to the vehicle seat 1, the hand rest board 10 is detached, and the caregiver can directly pull the armrest 5 out from between the seat cushion member 7 and the vehicle seat 1.

In addition, the first railing 23 and the second railing 24 are both provided with guide grooves 6, and the guide grooves 6 are axially formed in the first railing 23 and the second railing 24; and the guide groove 6 on the first rail 23 is also used for accommodating the body of the second rail 24, which is equivalent to the insertion channel.

The handrail 5 includes railing unit 9 and hand rest baffle 10, the guide spout is seted up on railing unit 9, hand rest baffle 10 demountable installation is on railing unit 9, just hand rest baffle 10 sets up the one side of portion 3 that holds in the palm on railing unit 9 dorsad.

To this end, referring to fig. 6, the bottom of the cushion member 7 is also provided with a movement limiting member 8, when the caregiver pushes the cushion member 7 to move on the armrest 5, the movement limiting member 8 moves in the guide groove 6, so as to limit the cushion member 7 to move out of the armrest 5, thereby improving the safety of the cushion member 7 moving on the balustrade assembly 9.

Based on the above features, when the armrest 5 swings to a position parallel to the support portion 3, the caregiver or the paralyzed patient can manually adjust the overall length of the balustrade assembly 9 to ensure that the hand-held baffle 10 of the armrest 5 can be overlapped on the seat 1 in the vehicle, or even the hand-held baffle 10 can extend to the inner side of the seat 1 in the vehicle. After the armrest 5 is leaned on the vehicle seat 1, the hand rest baffle plate 10 is used as a limiting structure, so that the armrest 5 is hung on the vehicle seat 1 and cannot slide on the seat 1, and at the moment, a caregiver can push the cushion piece 7 on the supporting part 3 and a paralyzed patient sitting on the cushion piece 7 to move together along the armrest 5 to the vehicle seat 1. And in the moving process of the cushion piece 7 and the paralytic, the wheelchair can keep the distance from the wheelchair to the vehicle body unchanged through the limit structures of the armrests 5 and the hand support baffle plates 10, and the safety of the paralytic is further improved.

In addition, the posture of the paralyzed patient is maintained in a sitting posture in the whole process of transferring the paralyzed patient from the wheelchair into the vehicle or moving the paralyzed patient from the vehicle to the wheelchair without excessive adjustment.

Referring to fig. 3 and 4, in the present embodiment, specifically, a universal ball 11A of the universal joint 11 is integrally disposed at a lower end of the second balustrade 24, a ball recess 11B of the universal joint 11 is correspondingly and fixedly disposed at an edge of the support portion 3, and the ball recess 11B is obliquely disposed at the edge of the support portion 3, so as to ensure that a swing range of the second balustrade 24, the balustrade assembly 9, and the handrail 5 includes two positions, i.e., a state perpendicular to the support portion 3 and a state parallel to the support portion 3.

The universal ball 11A at the lower end of the second rail 24 is disposed in the ball recess 11B to form a universal joint 11 structure at the edge of the support portion 3. The universal joint 11 connection enables the railing assembly 9 to be freely swung in the spatial range, in particular also in the horizontal plane in which the support 3 is located. Then, after the cushion member 7 moves to the seat 1 in the vehicle, the caregiver can press down the rail assembly 9 to separate the movement limiting member 8 at the bottom of the cushion member 7 from the guide groove 6, and then push the rail assembly 9 to swing in the horizontal plane, so that the rail assembly 9 can be separated from the area between the cushion member 7 and the seat 1 in the vehicle in the lateral direction.

The above-described method of operation may correspond to the case where the hand rest baffle 10 is hingedly connected to the balustrade assembly 9. At this moment, the hand support baffle 10 is hinged with the upper end of the first railing 23 of the railing assembly 9, and the railing assembly 9 can swing freely in the horizontal plane of the bearing part 3 to form any quadrangle in cooperation with the hand support baffle 10. The hand rest baffle 10 cannot be separated from the balustrade assembly 9, and the armrest 5 cannot be pulled out directly from between the cushion member 7 and the vehicle seat 1.

The position of the supporting part 3 corresponding to the moving limiting part 8 is provided with a containing groove 17, when the cushion part 7 is positioned on the supporting part 3, the moving limiting part 8 is contained in the containing groove 17, and the cushion part 7 is tightly attached to the upper part of the supporting part 3 so as to prevent the moving limiting part 8 from being damaged due to extrusion.

In addition, the receiving groove 17 is communicated with the guide groove 6 on the second handrail 24, a corresponding guide channel is formed on the universal joint 11 when the receiving groove 17 is communicated with the guide groove 6, and when the cushion member 7 moves from the bearing part 3 to the handrail 5, the movement limiting member 8 can smoothly and transitionally move into the guide groove 6 of the second handrail 24 without any obstruction.

Referring to fig. 5 and 6, a rack 22 is further integrally disposed in the guide groove 6 of the balustrade assembly 9, and corresponding to this structure, the movement limiting member 8 in this embodiment is configured as a gear. When the cushion member 7 moves along the rail along the direction of the guide groove 6, the movement limiting member 8 is positioned in the guide groove 6 and meshed with the rack 22, and at the moment, the movement limiting member 8 can limit the cushion member 7 to ensure the accuracy of the movement path of the cushion member 7, and can prevent the movement limiting member 8 from sliding in the guide groove 6 to cause unnecessary wear.

Referring to fig. 7, since the armrests 5 and the backrest 4 can rotate relative to the supporting portion 3, and the armrests 5 and the backrest 4 are not fixed during the normal use of the wheelchair, a surrounding structure is formed around the supporting portion 3 to protect the paralyzed patient sitting on the wheelchair.

In this respect, in this embodiment, as the fixing structure 12 for fixedly connecting the armrest 5 and the backrest 4, the fixing structure 12 includes a first fixing hole 13, a second fixing hole 14, a fixing screw 15, and a fixing nut 16, wherein the first fixing hole 13 is formed on the hand rest baffle 10 of the armrest 5, the second fixing hole 14 is formed at the edge of the backrest 4, and when the armrest 5 swings to a position vertically contacting the support portion 3 and the backrest 4, the first fixing hole 13 and the second fixing hole 14 should completely overlap, and at this time, the fixing screw 15 simultaneously passes through the first fixing hole 13 and the second fixing hole 14, and the fixing nut 16 is screwed on the fixing bolt, thereby fixedly connecting the armrest 5 and the backrest 4.

The fixing structure 12 can be disassembled, and the handrail 5 can swing along with the back 4 after the fixing structure 12 is disassembled.

As another embodiment of the invention, the backrest 4 can be arranged in a backrest 4 structure with an adjustable angle, so as to adjust the sitting posture of the paralyzed patient, in particular the back inclination angle of the sitting posture, and improve the comfort of the wheelchair.

Where not mentioned above, all are applicable to the prior art.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A wheelchair, characterized by: the chair comprises a chair (1) and a moving part (2) arranged at the lower part of the chair (1), wherein the chair (1) comprises a bearing part (3), a backrest (4) and armrests (5), the armrests (5) and the backrest (4) are arranged on the bearing part (3), and the armrests (5) are arranged to rotate around the bearing part (3); guide groove (6) have been seted up on handrail (5), still be equipped with cushion spare (7) on bearing portion (3), move locating part (8) are installed to cushion spare (7) bottom, work as handrail (5) expand, cushion spare (7) can be followed guide groove (6) direction and shifted out bearing portion (3).

2. The wheelchair of claim 1 wherein: handrail (5) are including railing subassembly (9) and hand rest baffle (10), the guide spout is seted up on railing subassembly (9), hand rest baffle (10) are installed on railing subassembly (9).

3. The wheelchair of claim 1 wherein: still including universal joint (11), universal joint (11) are including universal bulb (11A) and bulb groove spare (11B), bulb groove spare (11B) are fixed to be set up in supporting portion (3) limit portion position, universal bulb (11A) set firmly on handrail (5), universal bulb (11A) set up in bulb groove spare (11B).

4. The wheelchair of claim 1 wherein: the armrests (5) are symmetrically arranged on two sides of the backrest (4), the backrest (4) is provided with a plurality of fixing structures (12), and the armrests (5) rotate to the positions which are in contact with the backrest (4) and are fixed by the fixing structures (12) to form a protection structure on the bearing part (3).

5. The wheelchair of claim 4 wherein: fixed knot constructs (12) including offering first fixed orifices (13) on handrail (5), offering second fixed orifices (14), clamping screw (15) and fixation nut (16) on back (4), just handrail (5) rotate when hugging closely back (4), first fixed orifices (13) and second fixed orifices (14) overlap, clamping screw (15) pass two fixed orifices with fixed connection back (4) and handrail (5).

6. The wheelchair of claim 1 wherein: the bearing part (3) is further provided with an accommodating groove (17) used for accommodating the movable limiting part (8), and the accommodating groove (17) is communicated with the guide groove (6).

7. The wheelchair of claim 1 wherein: the moving part (2) comprises an I-shaped moving bracket (18) and a plurality of supporting rollers (19) arranged on the moving bracket (18); still install scalable support column (20) on movable support (18), seat (1) fixed mounting is in the upper end department of scalable support column (20).

8. The wheelchair of claim 7 wherein: scalable support column (20) set up to electric telescopic handle, power supply (21) of scalable support column (20) are portable power source, power supply (21) installation sets up on movable support (18).

9. The wheelchair of claim 1 wherein: a rack (22) is further installed in the guide groove (6), and the movable limiting part (8) is correspondingly arranged as a gear.

10. The wheelchair of claim 2 wherein: the railing assembly (9) comprises a first railing (23) and a second railing (24) inserted on the first railing (23), and the second railing (24) moves relative to the first railing (23) to adjust and change the overall height of the railing assembly (9).