CN219423172U - Adjustable wheelchair - Google Patents

Abstract

The utility model relates to the technical field of medical tools, and provides an adjustable wheelchair which is convenient for adjusting the width of the wheelchair according to the body shape of a patient, has higher comfort and higher use flexibility, and comprises a fixing frame, wherein a plurality of sliding rods are fixedly connected to the fixing frame, chair backs are connected between every two adjacent sliding rods in a sliding way, and telescopic mechanisms are arranged on the two chair backs; the telescopic mechanism comprises a plurality of first fixed blocks, the plurality of first fixed blocks are fixedly connected to one chair back close to the right end, a first electric cylinder is arranged on each of the plurality of first fixed blocks, a plurality of second fixed blocks are fixedly connected to one chair back close to the left end, and the output ends of the plurality of first electric cylinders are fixedly connected with the plurality of second fixed blocks respectively; lifting mechanisms are arranged on the two chair backs, the bottom end of the fixing frame is fixedly connected with a moving mechanism, the lifting mechanisms comprise sliding blocks, the sliding blocks are slidably connected onto the chair backs, hand supports are fixedly connected onto the sliding blocks, and lifting screws are rotatably connected onto the chair backs.

Description

Adjustable wheelchair

Technical Field

The utility model relates to the technical field of medical tools, in particular to an adjustable wheelchair.

Background

In 2002, the population of elderly people over 80 years of age worldwide reaches 6.06 billions, and is increasing at a faster rate than the general population, estimated to reach 10 billions in united nations in 2020. Zhao Yanchao the general population of disabled people and various disabled people of different grades in China at the end of 2010 are calculated in the national disabled population of over 8500 ten thousand, the specific data are 8502 ten thousand, wherein the limb disabled is 2472 ten thousand, most of the people need a wheelchair when going out, the wheelchair is an important tool for medical rehabilitation, and the wheelchair is not only a riding-assisting tool for disabled people, but also enables the disabled people to perform physical exercise and participate in social activities by means of the wheelchair. The common wheelchair generally mainly comprises a wheelchair frame, wheels, a brake device and a seat and backrest, and the most important consideration factor when the wheelchair is selected is the size of the wheelchair;

the existing wheelchair has the folding function, is convenient to store and store, but the folding wheelchair usually uses a cloth bag to support a human body, so that the comfort of a patient in long-term use is poor, the width adjustment is inconvenient to carry out according to the body shape of the patient, and the use flexibility is low.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the adjustable wheelchair which is convenient for adjusting the width of the wheelchair according to the body shape of a patient, has higher comfort and higher use flexibility.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: an adjustable wheelchair comprises a fixed frame, wherein a plurality of sliding rods are fixedly connected to the fixed frame, a chair back is connected between each two adjacent sliding rods in a sliding manner, and telescopic mechanisms are arranged on the two chair backs;

the telescopic mechanism comprises a plurality of first fixed blocks, the first fixed blocks are fixedly connected to one chair back close to the right end, a first electric cylinder is arranged on the first fixed blocks, a plurality of second fixed blocks are fixedly connected to one chair back close to the left end, and the output ends of the first electric cylinders are fixedly connected with the second fixed blocks respectively;

lifting mechanisms are arranged on the two chair backs and used for supporting arms of patients, and the bottom ends of the fixing frames are fixedly connected with moving mechanisms and used for supporting the chair backs to move.

In order to support the arm of the patient, preferably, the lifting mechanism comprises a sliding block, the sliding block is slidably connected to the chair back, a hand rest is fixedly connected to the sliding block, a lifting screw is rotatably connected to the chair back, and a screw hole is formed in the sliding block and is in threaded connection with the lifting screw.

In order to support the chair back to move, further, the moving mechanism comprises a moving frame, the moving frame is fixedly connected to the bottom end of the fixing frame, two moving wheels and two universal wheels are rotatably connected to the moving frame, and driving mechanisms are arranged on the two moving wheels.

In order to drive the chair back to move by the patient himself, the driving mechanism comprises a rotating gear, a driving rod is rotatably connected to the moving wheel, a pushing frame is rotatably connected to the driving rod, and the pushing frame is meshed with the rotating gear.

In order to support the head of the patient, as a further proposal of the proposal, a headrest is fixedly connected on one chair back close to the left end, and the right end of the headrest is connected on one chair back close to the right end in a sliding way.

In order to increase the stability of the sliding block during sliding, as a still further scheme of the scheme, a sliding groove is formed in the chair back, and the sliding block is in sliding connection with the sliding groove.

In order to drive the lifting screw rod to rotate, on the basis of the scheme, the top end of the lifting screw rod penetrates through the chair back and is fixedly connected with a knob.

In order to increase the stability of the connection of the movable frame, the movable frame is welded at the bottom end of the fixed frame on the basis of the scheme.

(III) beneficial effects

Compared with the prior art, the utility model provides an adjustable wheelchair, which has the following beneficial effects:

according to the adjustable wheelchair, the telescopic mechanisms arranged on the chair backs are used for adjusting the width of the two chair backs so as to adjust the width of the chair backs according to the body type of a patient, the lifting mechanisms arranged on the chair backs are used for lifting and adjusting the arms of the patient, and the moving mechanisms arranged on the fixing frames are used for driving the fixing frames and the chair backs to move, so that the adjustable wheelchair is convenient for adjusting the width of the wheelchair according to the body type of the patient, and is high in comfort and use flexibility.

Drawings

FIG. 1 is a schematic perspective view of the whole structure of the present utility model;

FIG. 2 is a schematic perspective view of another angle of the present utility model;

FIG. 3 is a schematic exploded perspective view of the utility model showing the cooperation of the mount, slide bar and chair back;

fig. 4 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present utility model.

In the figure:

1. a fixing frame; 2. a slide bar; 3. a chair back; 4. a headrest; 5. a knob;

100. a telescoping mechanism; 101. a first fixed block; 102. a first electric cylinder; 103. a second fixed block;

200. a lifting mechanism; 201. a slide block; 202. a hand support; 203. lifting screw rods;

300. a moving mechanism; 301. a moving rack; 302. a moving wheel; 303. a universal wheel;

400. a driving mechanism; 401. rotating the gear; 402. a driving rod; 403. pushing the frame.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an adjustable wheelchair comprises a fixed frame 1, wherein a plurality of sliding rods 2 are fixedly connected to the fixed frame 1, a chair back 3 is slidably connected between each adjacent plurality of sliding rods 2, a sliding groove is formed in the chair back 3, a sliding block 201 is slidably connected in the sliding groove so as to increase the stability of the sliding block 201 during sliding, a headrest 4 is fixedly connected to one chair back 3 close to the left end, the right end of the headrest 4 is slidably connected to one chair back 3 close to the right end so as to support the head of a patient, and a telescopic mechanism 100 is arranged on the two chair backs 3;

referring to fig. 2, the telescopic mechanism 100 includes a plurality of first fixing blocks 101, wherein the plurality of first fixing blocks 101 are fixedly connected to one backrest 3 near the right end, a first electric cylinder 102 is mounted on the plurality of first fixing blocks 101, a plurality of second fixing blocks 103 are fixedly connected to one backrest 3 near the left end, and output ends of the plurality of first electric cylinders 102 are respectively fixedly connected with the plurality of second fixing blocks 103;

referring to fig. 1, two chair backs 3 are provided with lifting mechanisms 200 for supporting arms of a patient, the lifting mechanisms 200 comprise sliding blocks 201, the sliding blocks 201 are slidably connected to the chair backs 3, hand supports 202 are fixedly connected to the sliding blocks 201, lifting screws 203 are rotatably connected to the chair backs 3, the top ends of the lifting screws 203 penetrate through the chair backs 3 and are fixedly connected with knobs 5 so as to drive the lifting screws 203 to rotate, and screw holes are formed in the sliding blocks 201 and are in threaded connection with the lifting screws 203 so as to support arms of the patient;

referring to fig. 1, a moving mechanism 300 is fixedly connected to a bottom end of a fixing frame 1, and is used for supporting a chair back 3 to move, the moving mechanism 300 includes a moving frame 301, the moving frame 301 is welded to the bottom end of the fixing frame 1, so that connection is simple, service life is long, the moving frame 301 is fixedly connected to the bottom end of the fixing frame 1, two moving wheels 302 and two universal wheels 303 are rotatably connected to the moving frame 301, and a driving mechanism 400 is mounted on each of the two moving wheels 302, so that a patient is supported to move.

Referring to fig. 4, the driving mechanism 400 includes a rotating gear 401, a driving rod 402 is rotatably connected to the moving wheel 302, a pushing frame 403 is rotatably connected to the driving rod 402, and the pushing frame 403 is meshed with the rotating gear 401, so that the patient can drive the moving wheel 302 to rotate by himself.

In summary, when the adjustable wheelchair is used, the first electric cylinder 102 is started, the first electric cylinder 102 installed on the first fixed block 101 drives the second fixed block 103 to stretch out and draw back, so that the chair back 3 slidingly connected on the sliding rod 2 is driven to move relatively, the width of the wheelchair is adjusted, a patient can sit on the chair back 3 after the width adjustment, the lifting screw 203 is driven to rotate by the rotating knob 5, the sliding block 201 slidingly connected in the sliding groove is driven to lift, the hand rest 202 rotationally connected on the sliding block 201 is driven to lift and adjust, the hand rest 202 is regulated to a comfortable height of the patient, the arm of the patient is supported, the comfort of the patient is improved, when the wheelchair is required to be moved, the patient can repeatedly push the driving rod 402 rotationally connected on the moving wheel 302 to move in an arc shape, so that the pushing frame 403 rotationally connected on the driving rod 402 is meshed with the rotating gear 401 fixedly connected on the moving wheel 302, and the wheelchair 302 is pushed forward, and moving operation is achieved, and time and labor are saved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The adjustable wheelchair is characterized by comprising a fixed frame (1), wherein a plurality of sliding rods (2) are fixedly connected to the fixed frame (1), a chair back (3) is connected between each two adjacent sliding rods (2) in a sliding manner, and a telescopic mechanism (100) is arranged on each two chair backs (3);

the telescopic mechanism (100) comprises a plurality of first fixed blocks (101), wherein the first fixed blocks (101) are fixedly connected to one chair back (3) close to the right end, a plurality of first electric cylinders (102) are arranged on the first fixed blocks (101), a plurality of second fixed blocks (103) are fixedly connected to one chair back (3) close to the left end, and the output ends of the first electric cylinders (102) are fixedly connected with the second fixed blocks (103) respectively;

the two chair backs (3) are provided with lifting mechanisms (200) for supporting arms of patients, and the bottom ends of the fixing frames (1) are fixedly connected with moving mechanisms (300) for supporting the chair backs (3) to move.

2. An adjustable wheelchair according to claim 1, characterized in that the lifting mechanism (200) comprises a slider (201), the slider (201) is slidably connected to the chair back (3), a hand rest (202) is fixedly connected to the slider (201), the chair back (3) is rotatably connected to a lifting screw (203), and the slider (201) is provided with a screw hole and is in threaded connection with the lifting screw (203).

3. An adjustable wheelchair according to claim 2, characterized in that the moving mechanism (300) comprises a moving frame (301), the moving frame (301) is fixedly connected to the bottom end of the fixed frame (1), two moving wheels (302) and two universal wheels (303) are rotatably connected to the moving frame (301), and the driving mechanism (400) is mounted on both moving wheels (302).

4. An adjustable wheelchair according to claim 3, characterized in that the drive mechanism (400) comprises a rotary gear (401), a drive lever (402) is rotatably connected to the mobile wheel (302), a pushing frame (403) is rotatably connected to the drive lever (402), and the pushing frame (403) is meshed with the rotary gear (401).

5. An adjustable wheelchair according to claim 4, characterized in that a headrest (4) is fixedly connected to one of the seat backs (3) near the left end, and the right end of the headrest (4) is slidably connected to one of the seat backs (3) near the right end.

6. An adjustable wheelchair according to claim 5, characterised in that the chair back (3) is provided with a chute, and the slider (201) is slidingly connected in the chute.

7. An adjustable wheelchair according to claim 6, characterized in that the top end of the lifting screw (203) penetrates the chair back (3) and is fixedly connected with a knob (5).

8. An adjustable wheelchair according to claim 7, characterized in that the mobile frame (301) is welded to the bottom end of the fixed frame (1).