CN220256650U

CN220256650U - Adjustable wheelchair

Info

Publication number: CN220256650U
Application number: CN202321837037.0U
Authority: CN
Inventors: 杜明秋; 杨金海; 王强
Original assignee: Sichuan Ast Medical Equipment Co ltd
Current assignee: Sichuan Ast Medical Equipment Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-12-29
Anticipated expiration: 2033-07-12

Abstract

The utility model provides an adjustable wheelchair, which comprises a base, a sitting plate frame, a backboard frame, a leg supporting plate frame and a foot supporting plate, wherein two brackets are symmetrically arranged on the base, the front end of the sitting plate frame is intersected with the front ends of the two brackets and hinged with the brackets at the intersection, the backboard frame is obliquely arranged, the lower end of the backboard frame is intersected with the sitting plate frame and hinged with the sitting plate frame at the intersection, one end of the leg supporting plate frame is hinged with the front end of the sitting plate frame, and the other end of the leg supporting plate frame is vertically connected with the foot supporting plate; also comprises a first telescopic driving piece and a second telescopic driving piece, two ends of the first telescopic driving piece are hinged with the rear ends of the base and the seat plate frame respectively; two ends of the second telescopic driving piece are respectively hinged with the rear end of the seat plate frame and the upper end of the back plate frame; the device also comprises a V-shaped connecting piece and a third telescopic driving piece; the angle of the surface of the seat, the backrest and the like can be adjusted according to the use requirement after the height is adjusted, and the user can adjust the sitting posture to be comfortable.

Description

Adjustable wheelchair

Technical Field

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

Background

The wheelchair mainly refers to a chair which is provided with wheels and can help to replace walking, is mainly used for home rehabilitation, turnover transportation, medical treatment and outgoing activities of wounded, patients and disabled persons, and is an important moving tool for wounded, patients and disabled persons.

The prior published patent name is a multifunctional wheelchair, the patent number is Chinese utility model patent No. CN215994536U, the patent discloses a multifunctional wheelchair, and specifically discloses the wheelchair which comprises a wheelchair frame and a seat assembly, the seat assembly comprises a seat and a seat support air spring, the seat is provided with a front end and a rear end, one end of the seat support air spring is pivoted on the wheelchair frame, the other end of the seat air spring is pivoted on the rear end, the multifunctional wheelchair further comprises a sitting height adjusting device, the sitting height adjusting device is fixed on the wheelchair frame, and the front end of the seat is pivoted with the sitting height adjusting device. According to the seat, the seat and the wheelchair frame are connected through the sitting height adjusting device, when the height of the seat needs to be adjusted, the adjustment of the height of the seat is realized by the sitting height adjusting device, the purpose that a user can conveniently adjust the sitting height according to needs is achieved, and the user can conveniently keep a comfortable or correct sitting posture.

However, when the height of the seat is adjusted, the bolt of the pivot shaft needs to be manually inserted into the adjusting hole corresponding to the height and then connected with the seat, so that the height and the angle can be adjusted.

Disclosure of Invention

The utility model aims to provide an adjustable wheelchair, which can adjust the angles of the surfaces of a seat, a backrest and the like according to the use requirement after the height is adjusted, and a user can adjust the wheelchair to a comfortable sitting posture.

The embodiment of the utility model is realized by the following technical scheme: the adjustable wheelchair comprises a base, a sitting plate frame, a back plate frame, leg supporting plate frames and foot supporting plates, wherein two brackets are symmetrically arranged on the base, the front ends of the sitting plate frame are intersected with the front ends of the two brackets and hinged with the brackets at the intersection, the back plate frame is obliquely arranged, the lower ends of the back plate frame are intersected with the sitting plate frame and hinged with the sitting plate frame at the intersection, one ends of the leg supporting plate frames are hinged with the front ends of the sitting plate frames, and the other ends of the leg supporting plate frames are vertically connected with the foot supporting plates;

the seat plate frame comprises a seat plate frame, a first telescopic driving piece and a second telescopic driving piece, wherein the seat plate frame is arranged on the seat plate frame;

and two ends of the second telescopic driving piece are respectively hinged with the rear end of the sitting plate frame and the upper end of the back plate frame.

Further, the folding seat further comprises a V-shaped connecting piece and a third telescopic driving piece, wherein the folding angle of the V-shaped connecting piece is hinged to the front end of the seat frame, one side of the V-shaped connecting piece is connected with one end of the leg support plate frame, which is far away from the foot support plate, the other end of the V-shaped connecting piece is hinged to the third telescopic driving piece, and one end of the third telescopic driving piece, which is far away from the V-shaped connecting piece, is hinged to the lower end of the back plate frame.

Further, the foot supporting plates comprise U-shaped rods and pedals, the U-shaped rods are vertically connected with the leg supporting plate frames, two ends of the U-shaped rods extend forwards, and the two foot supporting plates are symmetrically arranged at two ends of the U-shaped rods.

Further, one end of one pedal far away from the other pedal is rotationally connected with the U-shaped rod, a stop block is arranged at the bottom of the U-shaped rod, the stop block is abutted against the bottom of the pedal when the pedal is in a horizontal state, and the rotation range of the pedal is 0-270 degrees.

Further, limiting bars are arranged on two sides of the backboard frame, a soft filling piece is arranged between the two limiting bars, a head limiting groove and a shoulder limiting groove are formed in the soft filling piece, and the head limiting groove is communicated with the shoulder limiting groove;

the bottom of the head limiting groove is arc-shaped.

Further, the tops of the two brackets are both provided with hand supports.

Further, the back plate frame upper end is provided with the holding rod, base bottom array is provided with a plurality of universal casters.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

1. when a user sits on the sitting plate frame of the wheelchair and backs the wheelchair on the back plate frame, if the user feels uncomfortable in sitting posture or needs to sit up or lie down and the like to adjust the sitting posture, the sitting posture of the buttocks is adjusted through adjusting the first telescopic driving piece, the sitting plate frame can be leveled or slightly leaned forward when looking forward, and the sitting plate frame can be leaned forward to a larger extent when needing to rise up, so that the wheelchair is convenient to get up; simultaneously, the angle between the back plate frame and the sitting plate frame can be adjusted through the second telescopic driving piece, and the back plate frame and the sitting plate frame can be adjusted to a comfortable leaning posture according to the needs of a user; the angle of the leg supporting plate frame and the sitting plate frame can be adjusted through the third telescopic driving piece, the legs of a user can be supported, most of the legs are used when the user lies on the back for rest, and the specific use mode is also to see the requirements of the user and is adjusted electrically.

2. The head limit groove and the shoulder limit groove on the soft filling piece can assist in limiting a user, prevent the user from tilting left and right to cause secondary injury, and facilitate the transfer of the user under the condition that the user cannot control the upper body; the bottom of the head limiting groove is arc-shaped, can be attached to the head of a user to a greater extent, and has a better auxiliary limiting effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an adjustable wheelchair according to the present utility model;

FIG. 2 is a schematic diagram of an adjustable wheelchair according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

icon: 1. base, 11, support, 12, universal castor, 2, seat grillage, 3, backplate frame, 31, spacing fence, 32, soft filler, 321, head spacing groove, 322, shoulder spacing groove, 33, holding rod, 4, leg grillage, 5, foot rest, 51, U-shaped pole, 52, footboard, 53, dog, 6, first telescopic driving piece, 7, second telescopic driving piece, 8, V-shaped connecting piece, 9, third telescopic driving piece, 10, hand rest.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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 to 3, the present embodiment provides an adjustable wheelchair, which comprises a base 1, a sitting plate frame 2, a backboard frame 3, a leg support frame 4 and a foot support plate 5, wherein two brackets 11 are symmetrically arranged on the base 1, the front ends of the sitting plate frame 2 are intersected with the front ends of the two brackets 11 and hinged with the brackets 11 at the intersection, the backboard frame 3 is obliquely arranged, the lower end of the backboard frame 3 is intersected with the sitting plate frame 2 and hinged with the sitting plate frame 2 at the intersection, one end of the leg support frame 4 is hinged with the front end of the sitting plate frame 2, and the other end of the leg support frame 4 is vertically connected with the foot support plate 5;

the seat comprises a seat frame 2, a base 1 and a seat frame 1, and also comprises a first telescopic driving piece 6 and a second telescopic driving piece 7, wherein the two ends of the first telescopic driving piece 6 are respectively hinged with the rear ends of the base 1 and the seat frame 2;

the two ends of the second telescopic driving piece 7 are respectively hinged with the rear end of the seat plate frame 2 and the upper end of the back plate frame 3.

In specific implementation, when a user sits on the seat plate frame 2 of the wheelchair and backs on the back plate frame 3, if sitting postures are uncomfortable or sitting postures are required to be adjusted by rising or lying, the sitting postures of the buttocks are adjusted by adjusting the first telescopic driving piece 6, the seat plate frame 2 can be leveled or slightly tilted forwards when looking forwards, and when the user needs to rise, the seat plate frame 2 can be tilted forwards to a greater extent, so that the wheelchair is convenient to get up; simultaneously, the angle between the back plate frame 3 and the sitting plate frame 2 can be adjusted through the second telescopic driving piece 7, and the back plate frame can be adjusted to a comfortable leaning posture according to the needs of a user.

More specifically, as shown in fig. 2, the folding angle of the V-shaped connecting piece 8 and the third telescopic driving piece 9,V is hinged to the front end of the seat frame 2, one side of the V-shaped connecting piece 8 is connected with one end of the leg support frame 4 away from the foot support plate 5, the other end of the V-shaped connecting piece 8 is hinged with the third telescopic driving piece 9, one end of the third telescopic driving piece 9 away from the V-shaped connecting piece 8 is hinged with the lower end of the backboard frame 3, the V-shaped connecting piece 8 indirectly serves as a force arm, and the third telescopic driving piece 9 is convenient to drive the leg support frame 4 while the third telescopic driving piece 9 is convenient to install.

In a specific implementation, the angle between the leg support plate frame 4 and the seat plate frame 2 can be adjusted through the third telescopic driving piece 9, so that the legs of a user can be supported, and the user can mostly use the chair when lying on the back for rest, and the specific use mode is still to see the requirements of the user.

It should be noted that the first telescopic driving piece 6, the second telescopic driving piece 7 and the third telescopic driving piece 9 can be similar linear driving type objects such as an electric push cylinder and an air cylinder, and are two, and are symmetrically arranged about the left and right center axes of the wheelchair, so that the wheelchair has the advantages of being strong in structural stability, good in driving effect and the like, meanwhile, according to the specific use of the telescopic driving pieces, the wheelchair is also required to be provided with matched facilities such as a storage battery or an air cylinder and a control circuit, and the wheelchair is also required to be provided with a control panel, and a user and a nursing staff can both conveniently operate the control panel.

As shown in fig. 1 to 3, the foot rest 5 includes a U-shaped bar 51 and a pedal 52, the U-shaped bar 51 is vertically connected to the leg rest 4, both ends of the U-shaped bar 51 extend forward, and two foot rest 5 are symmetrically disposed at both ends of the U-shaped bar 51.

In specific implementation, one end of one pedal 52 far away from the other pedal 52 is rotationally connected with the U-shaped rod 51, the bottom of the U-shaped rod 51 is provided with a stop block 53, the stop block 53 is abutted against the bottom of the pedal 52 when the pedal 52 is in a horizontal state, the stop block 53 enables the rotation range of the pedal 52 to be 0-270 degrees, the pedal is mainly used for facilitating a user to get on and off a wheelchair, a nursing staff can firstly turn the pedal 52 upwards by 180-270 degrees so as to facilitate the user to get close to the seat plate frame 2, after the user sits down, the nursing staff slightly lifts the feet of the user, turns the pedal 52 back, then places the feet of the user on the pedal, and when the wheelchair is in a lower wheelchair, the pedal is turned over, and the user with partial inconvenience of legs needs to use according to the state of the user can be implemented in this way, and the user can sit on the seat plate frame 2 directly without adjusting the pedal 52 conveniently.

As shown in fig. 1 and 2, two sides of the backboard frame 3 are provided with limiting bars 31, a soft filling piece 32 is arranged between the two limiting bars 31, a head limiting groove 321 and a shoulder limiting groove 322 are formed in the soft filling piece 32, and the head limiting groove 321 is communicated with the shoulder limiting groove 322; the head limiting groove 321 and the shoulder limiting groove 322 on the soft filling piece 32 can assist in limiting a user, prevent the user from tilting left and right to cause secondary injury, and are also convenient for a nursing staff to transfer the user under the condition that the user cannot control the upper body.

More specifically, the bottom of the head limiting groove 321 is arc-shaped, can be attached to the head of a user to a greater extent, and has a better auxiliary limiting effect.

As shown in fig. 1 and 2, the top of each of the two brackets 11 is provided with a hand rest 10, which is convenient for a user to get up and place and hold the hands, and the height of the two brackets can be adjusted up and down, the distance and the mode of adjustment are consistent with the mode of adjusting armrests in the multifunctional wheelchair mentioned in the background art, and meanwhile, the seat plate frame 2, the front end height adjusting mode and principle are also consistent with the same.

More specifically, as shown in fig. 2, a holding rod 33 is arranged at the upper end of the back plate frame 3, so that a nursing staff can conveniently move the wheelchair, a plurality of universal casters 12 are arranged at the bottom of the base 1 in an array, so that the wheelchair can conveniently move, and meanwhile, a brake and a hand brake are arranged on pages of the universal casters 12.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An adjustable wheelchair is characterized in that: the seat comprises a base (1), seat frames (2), back plate frames (3), leg supporting frames (4) and foot supporting plates (5), wherein two brackets (11) are symmetrically arranged on the base (1), the front ends of the seat frames (2) are intersected with the front ends of the two brackets (11) and hinged with the brackets (11) at the intersection, the back plate frames (3) are obliquely arranged, the lower ends of the back plate frames are intersected with the seat frames (2) and hinged with the seat frames (2) at the intersection, one ends of the leg supporting frames (4) are hinged with the front ends of the seat frames (2), and the other ends of the leg supporting frames (4) are vertically connected with the foot supporting plates (5);

the seat plate frame also comprises a first telescopic driving piece (6) and a second telescopic driving piece (7), wherein two ends of the first telescopic driving piece (6) are respectively hinged with the rear ends of the base (1) and the seat plate frame (2);

the two ends of the second telescopic driving piece (7) are respectively hinged with the rear end of the seat plate frame (2) and the upper end of the back plate frame (3).

2. An adjustable wheelchair according to claim 1, further comprising a V-shaped connecting member (8) and a third telescopic driving member (9), wherein the folded corner of the V-shaped connecting member (8) is hinged to the front end of the sitting plate frame (2), one side of the V-shaped connecting member (8) is connected to one end of the leg support frame (4) away from the foot support plate (5), the other end of the V-shaped connecting member (8) is hinged to the third telescopic driving member (9), and the end of the third telescopic driving member (9) away from the V-shaped connecting member (8) is hinged to the lower end of the back plate frame (3).

3. An adjustable wheelchair according to claim 1, characterized in that the foot rest (5) comprises a U-shaped bar (51) and a pedal (52), the U-shaped bar (51) is vertically connected with the leg rest (4), both ends of the U-shaped bar (51) extend forward, and two foot rests (5) are symmetrically arranged at both ends of the U-shaped bar (51).

4. An adjustable wheelchair according to claim 3, characterized in that one end of one pedal (52) remote from the other pedal (52) is rotatably connected to the u-shaped rod (51), the bottom of the u-shaped rod (51) is provided with a stopper (53), the stopper (53) is abutted against the bottom of the pedal (52) when the pedal (52) is in a horizontal state, and the rotation range of the pedal (52) is 0 ° -270 °.

5. An adjustable wheelchair according to any one of claims 1-4, characterized in that two sides of the backboard frame (3) are provided with limiting bars (31), a soft filling member (32) is arranged between the two limiting bars (31), a head limiting groove (321) and a shoulder limiting groove (322) are formed in the soft filling member (32), and the head limiting groove (321) is communicated with the shoulder limiting groove (322);

the bottom of the head limiting groove (321) is arc-shaped.

6. An adjustable wheelchair according to claim 5, characterised in that the tops of both brackets (11) are provided with hand rests (10).

7. An adjustable wheelchair according to claim 6, characterized in that the upper end of the back plate frame (3) is provided with a grip lever (33), and the bottom array of the base (1) is provided with a plurality of casters (12).