CN216091115U

CN216091115U - Folding structure of portable wheelchair

Info

Publication number: CN216091115U
Application number: CN202122288269.2U
Authority: CN
Inventors: 刘泽华; 张明兴; 程从海
Original assignee: Tianjin Taikang Sunshine Technology Development Co ltd
Current assignee: Tianjin Taikang Sunshine Technology Development Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-22
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to the technical field of wheelchairs, in particular to a folding structure of a portable wheelchair. The technical scheme comprises the following steps: the back frame, the back frame articulates through locking mechanism has the seat frame, the preceding wheel carrier is installed to one side of sitting the frame, one side of preceding wheel carrier articulates there is folding pull rod opposite side to articulate there is the motor chassis, the motor chassis is connected with the back frame, folding swivel mount is passed through to the one end of folding pull rod and back frame is articulated, the hole of the intermediate position of back frame is connected with the hole articulated formula of back frame afterbody, the hole of sitting the frame front end is articulated with the hole of motor chassis front end, and meanwhile the hole of this position still is connected with the hole articulated formula on preceding wheel carrier top, the hole in the middle of the preceding wheel carrier is articulated with the hole of folding pull rod front end, the hole of folding pull rod tail end is articulated with the hole in the middle of the folding swivel mount. The folding type folding chair can achieve the purpose of reducing the volume by folding, and meanwhile, the overall strength can be improved to the maximum by utilizing a smart structure.

Description

Folding structure of portable wheelchair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a folding structure of a portable wheelchair.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair is an important mobile tool for home rehabilitation, turnover transportation, treatment and outgoing activities of wounded persons, patients and disabled persons, not only meets the requirements of physically disabled persons and persons with mobility disabilities for riding instead of walk, 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.

At present, a wheelchair is a tool for special people to ride instead of walk, and the main function of the wheelchair is the folding of a frame of a wheelchair main body. The defects that the folding operation of the wheelchair is complicated, the folded wheelchair is large and small enough after being folded, and the problem that the whole frame is broken and welded easily due to insufficient strength caused by the limitation of a folding structure after the wheelchair is unfolded are overcome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a portable wheelchair folding structure which is convenient for folding a wheelchair and can improve the strength of the wheelchair.

The technical scheme of the utility model is as follows: a portable wheelchair folding structure comprising: the back frame, the back frame articulates through locking mechanism has the frame of sitting, sit one side of frame and install preceding wheel carrier, one side of preceding wheel carrier articulates there is folding pull rod opposite side and articulates there is the motor chassis, the motor chassis is connected with the back frame, the one end of folding pull rod is articulated through folding swivel mount and back frame.

Preferably, the hole at the middle position of the backrest frame is in hinged connection with the hole at the tail part of the backrest frame.

Preferably, the hole at the front end of the seat frame is hinged with the hole at the front end of the motor underframe, and meanwhile, the hole at the position is hinged with the hole at the top end of the front wheel frame.

Preferably, the hole in the middle of the front wheel frame is hinged with the hole at the front end of the folding pull rod.

Preferably, the hole at the tail end of the folding pull rod is hinged with the hole in the middle of the folding rotary frame.

Preferably, the hole at the upper end of the folding rotary frame is in hinged connection with the hole at the lower end of the backrest frame.

Preferably, the hole at the lower end of the folding rotating frame is hinged with the hole at the tail part of the motor underframe.

Compared with the prior art, the utility model has the following beneficial technical effects:

1: when the bicycle is in a stretched state, the backrest frame is carried on the motor underframe to form a high-strength geometric triangular rigid body, and the overall strength is improved to the maximum by utilizing an ingenious structure;

2: when the backrest frame is pushed forwards, the folding rotary frame is pulled to rotate backwards, the folding rotary frame drives the backrest frame and the seat frame to simultaneously move downwards, meanwhile, the folding rotary frame also pulls the folding pull rod to move backwards, the folding pull rod pulls the front wheel frame to rotate backwards while moving backwards, and all devices are synchronously linked to achieve the purpose of folding and reducing the volume.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic structural diagram of the working principle of fig. 2.

Reference numerals: 1. a backrest frame; 2. a seat frame; 3. a front wheel carrier; 4. folding the pull rod; 5. folding the rotating frame; 6. a motor chassis; 7. and (4) a locking mechanism.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-3, the folding structure of a portable wheelchair provided by the utility model comprises a backrest frame 1, wherein the backrest frame 1 is hinged with a seat frame 2 through a locking mechanism 7, a front wheel frame 3 is installed at one side of the seat frame 2, a folding pull rod 4 is hinged at one side of the front wheel frame 3, a motor underframe 6 is hinged at the other side of the front wheel frame 3, the motor underframe 6 is connected with the backrest frame 1, and one end of the folding pull rod 4 is hinged with the backrest frame 1 through a folding rotating frame 5.

In this embodiment, the backrest frame 1 is mounted on the motor underframe 6 in the vehicle-open state to form a high-strength geometric triangular rigid body, and the overall strength is improved to the maximum by using an ingenious structure.

Example two

As shown in fig. 2 and 3, the folding structure of the portable wheelchair according to the present invention further includes a hole at the middle of the backrest frame 1 and a hole at the rear of the backrest frame 1, which are hinged to each other, compared to the first embodiment.

Preferably, the hole at the front end of the seat frame 2 is hinged with the hole at the front end of the motor underframe 6, meanwhile, the hole at the position is hinged with the hole at the top end of the front wheel frame 3, the hole in the middle of the front wheel frame 3 is hinged with the hole at the front end of the folding pull rod 4, the hole at the tail end of the folding pull rod 4 is hinged with the hole in the middle of the folding rotating frame 5, the hole at the upper end of the folding rotating frame 5 is hinged with the hole at the lower end of the backrest frame 1, and the hole at the lower end of the folding rotating frame 5 is hinged with the hole at the tail end of the motor underframe 6.

In this embodiment, when the backrest frame 1 is pushed forward, the folding rotary frame 5 is pulled to rotate backward, the folding rotary frame 5 drives the backrest frame 1 and the seat frame 2 to move downward at the same time, meanwhile, the folding rotary frame 5 also pulls the folding pull rod 4 to move backward, the folding pull rod 4 pulls the front wheel frame 3 to rotate backward at the same time of moving backward, and the devices are linked synchronously to achieve the purpose of folding and reducing the volume.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.

Claims

1. A folding structure of a portable wheelchair, comprising: the backrest frame (1), the backrest frame (1) is articulated to have a seat frame (2) through locking mechanism (7), sit one side of frame (2) and install preceding wheel carrier (3), one side of preceding wheel carrier (3) is articulated to have folding pull rod (4) opposite side to articulate to have motor chassis (6), motor chassis (6) are connected with backrest frame (1), the one end of folding pull rod (4) is articulated with backrest frame (1) through folding swivel mount (5).

2. The folding structure of portable wheelchair as claimed in claim 1, wherein the hole of the middle of the back frame (1) is hinged with the hole of the rear of the back frame (1).

3. A folding structure of a portable wheelchair in accordance with claim 1, characterized in that the holes in the front end of the seat frame (2) are hinged to the holes in the front end of the motor chassis (6), and at the same time the holes in this position are also hinged to the holes in the top end of the front wheel frame (3).

4. The folding structure of a portable wheelchair as claimed in claim 1, wherein the holes in the middle of the front wheel frame (3) are hinged with the holes in the front end of the folding tie (4).

5. The folding structure of a portable wheelchair as claimed in claim 1, characterised in that the holes at the end of the folding tie (4) are hinged to the holes in the middle of the folding swivel (5).

6. The folding structure of a portable wheelchair as claimed in claim 1, wherein the hole of the upper end of the folding swivel frame (5) is hingedly connected to the hole of the lower end of the back frame (1).

7. The folding structure of a portable wheelchair as claimed in claim 1, wherein the holes at the lower end of the folding swivel frame (5) are hingedly connected with the holes at the rear of the motor chassis (6).