CN219148257U

CN219148257U - Electric adjusting device for wheelchair backrest

Info

Publication number: CN219148257U
Application number: CN202223401457.2U
Authority: CN
Inventors: 陈建国; 陈新; 侯晓波
Original assignee: Jerry Medical Instrument Shanghai Co ltd
Current assignee: Jerry Medical Instrument Shanghai Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-09
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses an electric wheelchair backrest adjusting device, which comprises a wheelchair main body and a backrest, wherein the backrest is a door-shaped frame body, the end part of the frame body is provided with an outwards bent bending part, the rear end of the wheelchair main body is provided with a vertical upright post, the bending part is provided with a transversely arranged sleeve, the upright post is rotationally connected with the sleeve through a transversely arranged rotating shaft, the back side of the backrest is provided with a connecting frame, the rear end of the wheelchair main body is provided with a reinforcing frame, and an electric telescopic push rod is arranged between the reinforcing frame and the connecting frame. According to the utility model, the backrest of the door-shaped frame body is arranged, so that the bottom of the backrest is free of a frame, and discomfort caused by the contact of the bottom frame and the back of a human body is avoided when the backrest is in use; and through and the tip of the frame body is equipped with the bending part of outwards buckling for the frame body can not take place to push against with the human body, the fish tail human body, and accomodate back and wheelchair main part in the dorsal part and lean on the upper portion, eliminate the potential safety hazard of clamp injury people.

Description

Electric adjusting device for wheelchair backrest

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to an electric wheelchair backrest adjusting device.

Background

In the prior art, the main structure of the back inclination angle adjustment of the wheelchair backrest is that the bottom end of a backrest rod is connected with a chair frame shaft, an armrest frame is fixed with the chair frame, and the main defect of the adjustment mechanism is that the backrest is inclined backwards, and the back of a human body is uncomfortable in direct contact with a metal tube at the bottom end of the backrest. Therefore, we make improvements to this and propose an electric wheelchair backrest adjustment device.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to an electric wheelchair backrest adjusting device, which comprises a wheelchair main body and a backrest, wherein the backrest is a door-shaped frame body, the end part of the frame body is provided with an outwards bent part, the rear end of the wheelchair main body is provided with a vertical upright post, the bent part is provided with a transversely arranged sleeve, the upright post is rotationally connected with the sleeve through a transversely arranged rotating shaft, the back side of the backrest is provided with a connecting frame, the rear end of the wheelchair main body is provided with a reinforcing frame, and an electric telescopic push rod is arranged between the reinforcing frame and the connecting frame.

As a preferable technical scheme of the utility model, the first hinging block is arranged on the reinforcing frame, the second hinging block is arranged on the connecting frame, one end of the electric telescopic push rod is hinged with the first hinging block, and the other end of the electric telescopic push rod is hinged with the second hinging block.

As a preferable technical scheme of the utility model, the backrest is sleeved with a grid cloth layer.

As a preferable technical scheme of the utility model, the upright post is integrally welded with the wheelchair main body.

As a preferable technical scheme of the utility model, the backrest is made of a pipe with a circular section.

As a preferable technical scheme of the utility model, a buffer gap is formed between the connecting frame and the back surface of the backrest.

The beneficial effects of the utility model are as follows:

according to the electric wheelchair backrest adjusting device, the backrest of the door-shaped frame body is arranged, so that the bottom of the backrest is free of frames, and discomfort caused by the fact that the bottom frames are abutted against the back of a human body is avoided when the electric wheelchair backrest adjusting device depends on the backrest; and through and the tip of the frame body is equipped with the bending part of outwards buckling for the frame body can not take place to push against with the human body, and fish tail human body, and accomodate back and wheelchair main part in the dorsal part and lean on the upper portion, eliminate the potential safety hazard of clamp injury people.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of an electric wheelchair backrest adjustment mechanism;

fig. 2 is a schematic structural view of a sleeve of an electric wheelchair backrest adjusting mechanism.

In the figure: 1. a wheelchair main body; 2. a backrest; 3. a column; 4. a bending part; 6. a connecting frame; 7. a reinforcing frame; 8. a first hinge block; 9. a second hinge block; 10. an electric telescopic push rod; 11. a sleeve.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1-2, the electric wheelchair backrest adjusting device comprises a wheelchair main body 1 and a backrest 2, wherein the backrest 2 is a door-shaped frame body, a bending part 4 which is bent outwards is arranged at the end part of the frame body, a vertical upright post 3 which is upwards vertically arranged is arranged at the rear end of the wheelchair main body 1, a sleeve 11 which is transversely arranged is arranged on the bending part 4, the upright post 3 is rotationally connected with the sleeve 11 through a transversely arranged rotating shaft, a connecting frame 6 is arranged at the back side of the backrest 2, a reinforcing frame 7 is arranged at the rear end of the wheelchair main body 1, and an electric telescopic push rod 10 is arranged between the reinforcing frame 7 and the connecting frame 6. The backrest 2 of the door-shaped frame body is arranged, so that the bottom of the backrest 2 is free of frames, and discomfort caused by the collision of the underframe and the back of a human body is avoided when the backrest is in use; and through and the tip of the frame body is equipped with the bending part 4 of outwards buckling for the frame body can not take place to push against with the human body, and fish tail human body, and accomodate back 2 and wheelchair main part 1 in the back and lean on the position, eliminate the potential safety hazard of clamp injury people.

The reinforcing frame 7 is provided with a first hinging block 8, the connecting frame 6 is provided with a second hinging block 9, one end of the electric telescopic push rod 10 is hinged with the first hinging block 8, and the other end of the electric telescopic push rod 10 is hinged with the second hinging block 9.

The backrest 2 is sleeved with a grid cloth layer, and has the characteristic of good ventilation.

The upright post 3 and the wheelchair main body 1 are welded integrally, and the wheelchair has the characteristic of high connection strength.

The backrest 2 is made of a pipe with a circular section.

A buffer gap is formed between the connecting frame 6 and the back of the backrest 2, so that discomfort caused by collision with the back of a human body when the backrest is reclined is avoided.

Working principle: the backrest 2 of the door-shaped frame body is arranged, so that the bottom of the backrest 2 is free of frames, and discomfort caused by the collision of the underframe and the back of a human body is avoided when the backrest is in use; and through and the tip of the frame body is equipped with the bending part 4 of outwards buckling for the frame body can not take place to push against with the human body, and fish tail human body, and accomodate back 2 and wheelchair main part 1 in the back and lean on the position, eliminate the potential safety hazard of clamp injury people.

Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made 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 electric wheelchair backrest adjusting device is characterized in that: including wheelchair main part (1) and back (2), back (2) are the frame body of door type, and the tip of frame body is equipped with the portion of bending (4) of outwards buckling, just the rear end of wheelchair main part (1) is equipped with vertical ascending stand (3), be equipped with sleeve (11) of horizontal setting on the portion of bending (4), just rotate through the axis of rotation that transversely sets up between stand (3) and sleeve (11) and be connected, just the back side of back (2) is equipped with link (6), just the rear end of wheelchair main part (1) is equipped with strengthening frame (7), install electric telescopic push rod (10) between strengthening frame (7) and link (6).

2. The wheelchair backrest electric adjustment device according to claim 1, characterized in that the reinforcement frame (7) is provided with a first hinging block (8), the connection frame (6) is provided with a second hinging block (9), one end of the electric telescopic push rod (10) is hinged with the first hinging block (8), and the other end of the electric telescopic push rod (10) is hinged with the second hinging block (9).

3. The electric wheelchair backrest adjusting device according to claim 1, characterized in that the backrest (2) is sleeved with a mesh cloth layer.

4. A wheelchair backrest electric adjustment device according to claim 3, characterized in that the upright (3) is welded integrally with the wheelchair body (1).

5. The electric wheelchair backrest adjustment device according to claim 1, characterized in that the backrest (2) is made of a tube with a circular cross section.

6. An electric wheelchair backrest adjustment device according to claim 1, characterized in that a buffer gap is formed between the connection frame (6) and the back of the backrest (2).