CN112957190B

CN112957190B - Electric auxiliary wheelchair

Info

Publication number: CN112957190B
Application number: CN202110146978.9A
Authority: CN
Inventors: 何孟军; 曾连斌; 郑春祥; 张茂祥; 赵玉龙; 钱皓强
Original assignee: Jinhua Enjoycare Motive Technology Co ltd
Current assignee: Jinhua Enjoycare Motive Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-09-24
Anticipated expiration: 2041-02-03
Also published as: CN112957190A

Abstract

The invention discloses an electric auxiliary wheelchair, belonging to the technical field of medical care equipment, comprising a sitting stool and a main wheel arranged on the sitting stool, wherein the lower side wall of a supporting plate is fixedly connected with an inserting rod, a sealing plate is provided with inserting holes matched with the inserting rod, the inserting rod penetrates through the sitting stool and is inserted into the inserting holes, the lower side wall of the sitting stool is connected with a bed pan, the electric auxiliary wheelchair can be conveniently and independently used for a physically injured person to go to a toilet, is simple and convenient to operate, can be lifted and lowered simultaneously, is convenient for the physically injured person to take higher articles, reduces unnecessary troubles in life, can be used for adjusting a backrest of the wheelchair, can keep a normal sitting posture of the physically injured person, can enable the physically injured person to lie flat, can be unfolded, can avoid fatigue of the physically injured person due to a long-time sitting posture, can finish going downstairs independently, and solves the problem of single function of the existing wheelchair to a certain extent, the requirement on the terrain is high.

Description

Electric auxiliary wheelchair

Technical Field

The invention relates to the technical field of medical care equipment, in particular to an electric auxiliary wheelchair.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair not only meets the requirements of physical disabilities and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair.

The common wheelchair generally comprises a foldable frame, front and rear wheels, left and right kneepads, a pedal, left and right detachable armrests, a handle brake device, a seat, a backrest, a medical image data bag, a bedpan, a urine receiving bag hook, an electric stand and the like. The hand-operated wheelchair is added with a hand-operated device on the basis of a common wheelchair. The electric wheelchair is additionally provided with an electronic power assisting system on the basis of a common wheelchair, so that the physical consumption of a user is reduced. On the basis of the electric wheelchair, the intelligent wheelchair is additionally provided with positioning movement, standing movement, remote control movement and related Internet + assisted life.

However, the existing wheelchair still has many problems in use, for example, 1. for the physically disabled, it is very troublesome to go to the toilet, and it needs help of others to sit on the toilet conveniently, or needs to find a special toilet, thus causing inconvenience to life; 2. the existing wheelchair can not realize lifting, so that a person with limb injury is difficult to take higher articles; 3. the existing wheelchair has a fixed structure, and people can only keep a lasting sitting posture in the using process, so that the body is difficult to stretch in the sitting posture for a long time, and the people feel tired; 4. the existing wheelchair has a single function, has high requirements on the terrain, needs the help of other people when going down stairs, cannot go down the stairs by oneself, and easily causes potential safety hazards.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an electric auxiliary wheelchair which can be used for facilitating independent toilet taking of the physically injured person, is simple and convenient to operate, can be lifted and lowered to facilitate the physically injured person to take higher objects, reduces unnecessary troubles in life, can be used for adjusting a backrest of the wheelchair, enables the physically injured person to keep a normal sitting posture, enables the physically injured person to lie flat and can stretch the body, avoids the physical injury of the physically injured person caused by long-time sitting posture, can be used for independently finishing downstairs, and solves the problems that the existing wheelchair is single in function and high in requirements on terrain to a certain degree.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An electric auxiliary wheelchair comprises a stool and a main wheel installed on the stool, wherein a through hole is drilled in the stool, two sliding cavities are drilled on the right side of the through hole in the stool, sliding blocks are connected in the two sliding cavities in a sliding mode, the inner walls of the front side and the rear side of the through hole are connected with a sealing plate in a sliding mode, the sealing plate is fixedly connected with the sliding blocks, the other end of the sealing plate is inserted into the inner wall of the right side of the through hole, a U-shaped air bag is installed at the upper end of the stool, a supporting plate is fixedly connected to the upper end of the U-shaped air bag, an air pipe is installed at the tail end of the U-shaped air bag, an air cylinder fixedly connected with the stool is installed at the other end of the air pipe, a push-pull rod is fixedly connected to the upper end of the sliding block, an inserting rod is fixedly connected to the lower side wall of the supporting plate, an inserting hole matched with the inserting rod is drilled in the sealing plate, the inserting rod penetrates through the stool and is inserted into the inserting hole, a bedpan is connected to the lower side wall of the stool, an opening matched with the through hole is formed in the bedpan in a chiseled mode. It can be convenient for limbs wounded and disabled person independently go to lavatory, and easy and simple to handle, can rise to the wheelchair simultaneously and fall, the limbs wounded and disabled person of being convenient for takes the article of higher department, it is troublesome to have reduced unnecessary in the life, can adjust the back of wheelchair simultaneously, not only make limbs wounded and disabled person can keep normal position of sitting, can also make limbs wounded and disabled person lie flat, the health is extended, it leads to the fatigue because of long-time position of sitting to avoid limbs wounded and disabled person, and it can accomplish alone and go downstairs, the current wheelchair function singleness of solution of certain degree, the higher problem of topographic requirements.

Furthermore, the bedpan and the stool are clamped, so that the bedpan can be cleaned conveniently.

Further, a driving box is fixedly connected to the lower side wall of the sitting stool, a transverse plate is fixedly connected to the interior of the driving box, a first square lifting rod is rotatably connected to the transverse plate, a lead screw is fixedly connected to the lower end of the first square lifting rod, a sleeve is fixedly connected to the lower side wall of the driving box, the lead screw is in threaded connection with the sleeve, a base is fixedly connected to the lower end of the lead screw, two limiting rods are fixedly connected to the upper side wall of the base and arranged to penetrate through the lower side wall of the driving box, a crawler wheel is mounted at the lower end of the base, the first square lifting rod penetrates through the transverse plate and is fixedly connected with a first bevel gear, a motor is fixedly connected to the right side wall of the driving box, a rotating shaft is fixedly connected to the output end of the motor, a second bevel gear penetrates through the driving box and is meshed with the first bevel gear, can automatically lift and lower the wheelchair, and avoid the disabled to take the higher articles.

Further, sit bench upper end fixedly connected with horizontal pole, the first disc of the equal fixedly connected with in horizontal pole both ends, the cover is equipped with the rotation sleeve pipe on the horizontal pole, fixedly connected with back on the back, the equal fixedly connected with second disc in rotation sleeve pipe both ends, two all pegging graft on the second disc has the kelly, the kelly is kept away from first disc one end fixedly connected with spring board, the first extension spring of fixedly connected with between spring board and the second disc, it has two sockets with the kelly to open the chisel on the first disc, can adjust the back of wheelchair, not only makes limbs hinder the disabled and can keep normal position of sitting, can also make limbs hinder disabled's lying.

Furthermore, two the socket uses first disc to be 90 degrees settings as the centre of a circle, not only is convenient for other people to promote the wheelchair, can also further strengthen the stability of back when lying.

Furthermore, a pushing handle is fixedly connected to the backrest and is perpendicular to the backrest, and the length of the pushing handle is matched with the height of the wheelchair, so that the wheelchair is in a horizontal state when in a lying state.

Further, sit the bench side wall and install two and hold in the palm hand racks, two hold in the palm the square lifter of the equal fixedly connected with second in hand rack upper end, the square lifter upper end fixedly connected with L shape pole of second, the L shape pole other end rotates and is connected with the cutting ferrule, the equal threaded connection in cutting ferrule left and right sides has the bolt, two the bolt is located the inside one end of cutting ferrule and rotates and be connected with the pulley, and the cutting ferrule and the staircase joint of being convenient for avoids the cutting ferrule to take place to drop when sliding on the staircase simultaneously for the wheelchair is more stable when downstairs.

Furthermore, the inner wall of the upper side of the clamping sleeve is fixedly connected with a non-slip mat, so that the friction force of the escalator is further increased, the speed of the wheelchair going downstairs is effectively reduced, and potential safety hazards are avoided.

Furthermore, two front wheels are installed at the bottom end of the stool, so that the movement and downstairs stability of the wheelchair are improved.

Furthermore, the non-slip mat is made of rubber, and a plurality of non-slip lines are carved on the lower side wall of the non-slip mat.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that

(1) It can be convenient for limbs wounded and disabled person independently go to lavatory, and easy and simple to handle, can rise to the wheelchair simultaneously and fall, the limbs wounded and disabled person of being convenient for takes the article of higher department, it is troublesome to have reduced unnecessary in the life, can adjust the back of wheelchair simultaneously, not only make limbs wounded and disabled person can keep normal position of sitting, can also make limbs wounded and disabled person lie flat, the health is extended, it leads to the fatigue because of long-time position of sitting to avoid limbs wounded and disabled person, and it can accomplish alone and go downstairs, the current wheelchair function singleness of solution of certain degree, the higher problem of topographic requirements.

(2) The bedpan and the stool are clamped, so that the bedpan can be cleaned conveniently.

(3) The lower side wall of the stool is fixedly connected with a driving box, the interior of the driving box is fixedly connected with a transverse plate, the transverse plate is rotatably connected with a first square lifting rod, the lower end of the first square lifting rod is fixedly connected with a screw rod, the lower side wall of the driving box is fixedly connected with a sleeve, the screw rod is connected with the sleeve by screw thread, the lower end of the screw rod is fixedly connected with a base, the upper side wall of the base is fixedly connected with two limiting rods, two limiting rods are arranged by penetrating through the lower side wall of the driving box, a crawler wheel is arranged at the lower end of the base, a first square lifting rod is fixedly connected with a first bevel gear by penetrating through a transverse plate, the right side wall of the driving box is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft, the rotating shaft penetrates through the driving box and is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear, so that the wheelchair can be automatically lifted and lowered, and the limbs of the disabled can be prevented from taking articles at a higher position.

(4) Sit bench upper end fixedly connected with horizontal pole, the first disc of the equal fixedly connected with in horizontal pole both ends, the cover is equipped with the rotating sleeve pipe on the horizontal pole, fixedly connected with back on the back, the equal fixedly connected with second disc in rotating sleeve pipe both ends, all peg graft on two second discs and have the kelly, the kelly is kept away from first disc one end fixedly connected with spring plate, the first extension spring of fixedly connected with between spring plate and the second disc, it has two sockets with the kelly to open the chisel on the first disc, can adjust the back of wheelchair, not only make limbs hinder the disabled person and can keep normal position of sitting, can also make limbs hinder the disabled person and lie flat.

(5) Two sockets use first disc to be 90 degrees settings as the centre of a circle, not only be convenient for other people promote the wheelchair, can also further strengthen the stability of back when lying.

(6) The backrest is fixedly connected with a push handle which is vertically arranged with the backrest, and the length of the push handle is matched with the height of the wheelchair, so that the wheelchair is in a horizontal state when lying.

(7) Sit the bench side wall and install two and hold in the palm the hand rack, the square lifter of the equal fixedly connected with second in two support hand racks upper end, the square lifter upper end fixedly connected with L shape pole of second, the L shape pole other end rotates and is connected with the cutting ferrule, the equal threaded connection in cutting ferrule left and right sides has the bolt, two bolts are located the inside one end of cutting ferrule and rotate and be connected with the pulley, the cutting ferrule and the staircase joint of being convenient for avoids the cutting ferrule to take place to drop when sliding on the staircase simultaneously for the wheelchair is more stable when downstairs.

(8) The inner wall of the upper side of the clamping sleeve is fixedly connected with the anti-slip mat, so that the friction force of the escalator is further increased, the descending speed of the wheelchair is effectively reduced, and potential safety hazards are avoided.

(9) Two front wheels are arranged at the bottom end of the stool, so that the movement and downstairs stability of the wheelchair are improved.

(10) The non-slip mat is made of rubber materials, and a plurality of anti-slip lines are carved on the lower side wall of the non-slip mat.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is an enlarged view of the invention at B in fig. 3.

FIG. 5 is a side cross-sectional view of the present invention;

FIG. 6 is a schematic view of the structure of the ferrule of the present invention;

fig. 7 is a working state diagram of the invention when going down stairs.

The reference numbers in the figures illustrate:

1 seat, 2 through holes, 3 sliding cavities, 4 sliding blocks, 5 sealing plates, 6U-shaped air bags, 7 supporting plates, 8 air pipes, 9 air cylinders, 10 push-pull rods, 11 inserted rods, 12 bed pans, 13 driving boxes, 14 first square lifting rods, 15 lead screws, 16 sleeves, 17 bases, 18 limiting rods, 19 track wheels, 20 first bevel gears, 21 motors, 22 second bevel gears, 23 cross rods, 24 first round plates, 25 rotating sleeves, 26 backrests, 27 second round plates, 28 clamping rods, 29 spring plates, 30 hand supports, 31 second square lifting rods, 32L-shaped rods, 33 clamping sleeves, 34 bolts, 35 pulleys, 36 main wheels, 37 anti-skidding pads, 38 pushers, 39 front wheels and 40 transverse plates.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, an electric auxiliary wheelchair comprises a seat 1 and a main wheel 36 mounted on the seat 1, wherein a through hole 2 is drilled on the seat 1, two sliding cavities 3 are drilled on the right side of the through hole 2 of the seat 1, sliding blocks 4 are slidably connected in the two sliding cavities 3, a sealing plate 5 is slidably connected to the inner walls of the front and rear sides of the through hole 2, the sealing plate 5 is fixedly connected with the sliding blocks 4, the other end of the sealing plate 5 is inserted into the inner wall of the right side of the through hole 2, a U-shaped airbag 6 is mounted at the upper end of the seat 1, a supporting plate 7 is fixedly connected to the upper end of the U-shaped airbag 6, an air tube 8 is mounted at the tail end of the U-shaped airbag 6, an air tube 9 fixedly connected with the seat 1 is mounted at the other end of the air tube 8, a push-pull rod 10 is fixedly connected to the upper end of the sliding block 4, an inserting rod 11 is fixedly connected to the lower side wall of the supporting plate 7, an inserting hole matched with the inserting rod 11 is drilled in the sealing plate 5, and the inserting rod 11 penetrates through the inserting hole of the seat 1, the lower side wall of the stool 1 is connected with a bedpan 12, and the bedpan 12 is clamped with the stool 1, so that the bedpan 12 can be cleaned conveniently. The bedpan 12 is provided with an opening matched with the through hole 2.

Referring to fig. 1, a driving box 13 is fixedly connected to a lower side wall of a stool 1, a transverse plate 40 is fixedly connected to an inside of the driving box 13, a first square lifting rod 14 is rotatably connected to the transverse plate 40, a lead screw 15 is fixedly connected to a lower end of the first square lifting rod 14, a sleeve 16 is fixedly connected to a lower side wall of the driving box 13, the lead screw 15 is in threaded connection with the sleeve 16, a base 17 is fixedly connected to a lower end of the lead screw 15, two limit rods 18 are fixedly connected to an upper side wall of the base 17, the two limit rods 18 are arranged to penetrate through a lower side wall of the driving box 13, a track wheel 19 is mounted at a lower end of the base 17, a first bevel gear 20 is fixedly connected to the first square lifting rod 14, a motor 21 is fixedly connected to a right side wall of the driving box 13, the motor 21 is a dc motor having a model of Z4-132-1, the structure and principle of the motor 21 are prior art, and will not be described herein again, and an output end of the motor 21 is fixedly connected to a rotating shaft, the rotating shaft penetrates through the driving box 13 and is fixedly connected with a second bevel gear 22, and the second bevel gear 22 is meshed with the first bevel gear 20, so that the wheelchair can be automatically lifted and lowered, and the limbs of the disabled can be prevented from taking articles at a higher position.

Referring to fig. 3-4, a cross bar 23 is fixedly connected to the upper end of the stool 1, first disks 24 are fixedly connected to both ends of the cross bar 23, a rotary sleeve 25 is sleeved on the cross bar 23, a backrest 26 is fixedly connected to the backrest 26, second disks 27 are fixedly connected to both ends of the rotary sleeve 25, clamping rods 28 are inserted into the two second disks 27, the clamping rods 28 are far away from one end of the first disk 24 and fixedly connected to a spring plate 29, a first extension spring is fixedly connected between the spring plate 29 and the second disks 27, two sockets of the clamping rods 28 are formed in the first disk 24, and the two sockets are arranged at 90 degrees with the first disk 24 as a circle center, so that not only is the wheelchair conveniently pushed by other people, but also the stability of the backrest when the user lies down can be further enhanced. The backrest of the wheelchair can be adjusted, so that the physical injury can keep a normal sitting posture, and the physical injury can lie flat.

Referring to fig. 1, a push handle 38 is fixedly connected to the backrest 26, and the length of the push handle 38 matches the height of the wheelchair, so that the wheelchair is in a horizontal state when lying down.

Referring to fig. 5-7, two hand supporting frames 30 are installed on the upper side wall of the sitting stool 1, the upper ends of the two hand supporting frames 30 are fixedly connected with a second square lifting rod 31, the upper end of the second square lifting rod 31 is fixedly connected with an L-shaped rod 32, the other end of the L-shaped rod 32 is rotatably connected with a clamping sleeve 33, the left side and the right side of the clamping sleeve 33 are both in threaded connection with bolts 34, one end of the two bolts 34 in the clamping sleeve 33 is rotatably connected with a pulley 35, the clamping sleeve 33 is conveniently clamped with the escalator, and meanwhile, the clamping sleeve 33 is prevented from falling off when sliding on the escalator, so that the wheelchair is more stable when going downstairs.

Referring to fig. 6, the upper inner wall of the ferrule 33 is fixedly connected with a non-slip pad 37, the non-slip pad 37 is made of rubber, and a plurality of non-slip lines are engraved on the lower side wall of the non-slip pad 37. The friction force of the escalator is further increased, the speed of the wheelchair going downstairs is effectively reduced, and potential safety hazards are avoided.

Referring to fig. 1, two front wheels 39 are installed at the bottom of the stool 1 to improve the stability of the wheelchair moving and going downstairs.

When the device is used, a user presses the air cylinder 9, air enters the U-shaped air bag 6 through the air pipe 8 to expand the U-shaped air bag, the hip of the user is separated from the sealing plate 5 under the supporting effect of the U-shaped air bag 6, meanwhile, the U-shaped air bag 6 pushes the supporting plate 7 to separate the insertion rod 11 from the sealing plate 5, then the user can push the push-pull rod 10 to slide the sealing plate 5 into the sliding cavity 3, at the moment, the bedpan 12 is communicated with the through hole 2, and the user can defecate.

When a user needs to lie down, please refer to fig. 1, the user pulls the two spring plates 29 to separate the clamping rod 28 from the first disc 24, pushes the backrest 26, then inserts the clamping rod 28 into the other socket of the first disc 24 to fix the backrest 26, and supports the backrest 26 by the pushing handle 38.

When a user needs to lift the wheelchair, firstly, the user starts the motor 21, the motor 21 drives the second bevel gear 22 to rotate, the first bevel gear 20 drives the screw rod 15 to rotate through the first square lifting rod 14, the screw rod 15 drives the base 17 to move downwards under the action of the threads, the crawler wheel 19 supports the wheelchair, and therefore the lifting purpose is achieved.

When a user goes down stairs, please refer to fig. 7, firstly, the user lifts the clamping sleeve 33 upwards, then the clamping sleeve 33 is placed on the staircase, the staircase is clamped through the rotating bolt 34, then the user starts the motor, the limiting rod 18 is enabled to slide downwards slowly under the action of friction after supporting the wheelchair, the device can facilitate independent toilet use by the physically injured person, is simple and convenient to operate, can lift and lower the wheelchair, is convenient for the physically injured person to take higher objects, reduces unnecessary troubles in life, can adjust the backrest of the wheelchair, not only enables the physically injured person to keep normal sitting posture, but also enables the physically injured person to lie down, can stretch the body, avoids fatigue of the physically injured person due to long-time sitting posture, can finish going down stairs independently, and solves the problem of single function of the existing wheelchair to a certain degree, the requirement on the terrain is high.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. An electric auxiliary wheelchair comprises a stool (1) and a main wheel (36) arranged on the stool (1),

the method is characterized in that: the stool (1) is provided with a through hole (2), and the stool (1) is positioned in the through hole (2)

Two sliding cavities (3) are chiseled on the right side, sliding blocks (4) are connected in the two sliding cavities (3) in a sliding way,

the inner walls of the front side and the rear side of the through hole (2) are connected with the same sealing plate (5) in a sliding way, and the sealing plates (5)

Is fixedly connected with the sliding block (4), the other end of the sealing plate (5) is inserted into the inner wall of the right side of the through hole (2),

the upper end of the stool (1) is provided with a U-shaped air bag (6), and the upper end of the U-shaped air bag (6) is fixedly connected

The tail end of the U-shaped air bag (6) is provided with an air pipe (8), and the air pipe (8)

The other end is provided with an air cylinder (9) fixedly connected with the stool (1), and the upper end of the sliding block (4) is fixedly connected with

A push-pull rod (10) is connected, the lower side wall of the supporting plate (7) is fixedly connected with an insert rod (11), and the density is high

The closing plate (5) is provided with a jack matched with the inserted link (11) in a chiseling way, and the inserted link (11) passes through the stool (1)

Is inserted into the jack, the lower side wall of the stool (1) is connected with a bedpan (12), and the bedpan (12)

An opening matched with the through hole (2) is chiseled on the upper opening, and two supporting hands are arranged on the side wall of the stool (1)

The upper ends of the two hand supporting frames (30) are fixedly connected with a second square lifting rod (31),

the upper end of the second square lifting rod (31) is fixedly connected with an L-shaped rod (32), and the L-shaped rod (32)

The other end is rotationally connected with a clamping sleeve (33), the left side and the right side of the clamping sleeve (33) are both in threaded connection with bolts

(34) One end of each of the two bolts (34) positioned in the clamping sleeve (33) is rotatably connected with a pulley (35),

the upper inner wall of the cutting sleeve (33) is fixedly connected with a non-slip pad (37), and the non-slip pad (37) is made of rubber

The rubber material is made, and a plurality of anti-skid lines are carved on the lower side wall of the anti-skid pad (37).

2. An electrically-assisted wheelchair as claimed in claim 1, wherein: the bedpan

(12) Is clamped with the stool (1).

3. An electrically-assisted wheelchair as claimed in claim 1, wherein: the stool

(1) The lower side wall is fixedly connected with a driving box (13), and the inside of the driving box (13) is fixedly connected with a transverse rod

A plate (40), a first square lifting rod (14) is rotationally connected on the transverse plate (40), and the first square lifting rod

The lower end of the square lifting rod (14) is fixedly connected with a screw rod (15), and the lower side wall of the driving box (13) is fixed

Fixedly connected with sleeve (16), and lead screw (15) and sleeve (16) threaded connection, lead screw (15) lower extreme fixedly connected with base (17), lateral wall fixedly connected with two gag lever posts on base (17)

(18) And two limit rods (18) penetrate through the lower side wall of the driving box (13), and the base (17)

The lower end of the crawler belt wheel (19) is provided with the first square lifting rod (14) which penetrates through the transverse plate (40) for fixation

A first conical gear (20) is connected, the right side wall of the driving box (13) is fixedly connected with a motor (21),

the output end of the motor (21) is fixedly connected with a rotating shaft, and the rotating shaft penetrates through the driving box (13) to be fixedly connected

A second bevel gear (22) is connected with the first bevel gear (20)

And (4) meshing.

4. An electrically-assisted wheelchair as claimed in claim 1, wherein: the stool

(1) The upper end of the horizontal rod (23) is fixedly connected with a horizontal rod, and the two ends of the horizontal rod (23) are fixedly connected with first circles

A plate (24), wherein a rotary sleeve (25) is sleeved on the cross rod (23), and the rotary sleeve (25)

An upper fixedly connected with backrest (26), and two ends of the rotating sleeve (25) are fixedly connected with second discs

(27) Two clamping rods (28) are inserted into the second round discs (27), and the clamping rods (28)

A spring plate (29) is fixedly connected to one end far away from the first disc (24), and the spring plate (29) and the second disc

A first extension spring is fixedly connected between the two discs (27), and the first disc (24) is provided with a chisel

Two sockets with the clamping rod (28).

5. An electrically-assisted wheelchair as claimed in claim 4, wherein: two of

The socket is arranged in 90 degrees by taking the first disc (24) as a circle center.

6. An electrically-assisted wheelchair as claimed in claim 4, wherein: the backrest

(26) A push handle (38) is fixedly connected with the upper part and is vertically arranged with the upper part, and the length of the push handle (38) and the wheel

The heights of the chairs are matched.

7. An electrically-assisted wheelchair as claimed in claim 1, wherein: the stool

(1) Two front wheels (39) are mounted at the bottom end.