CN210384234U

CN210384234U - Portable folding wheelchair

Info

Publication number: CN210384234U
Application number: CN201821921700.4U
Authority: CN
Inventors: 陆钊鸿
Original assignee: Foshan Mengwei Trading Co ltd; Foshan Any Home Care Medical Technology Co ltd
Current assignee: Foshan Mengwei Trading Co ltd; Foshan Any Home Care Medical Technology Co ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2020-04-24
Anticipated expiration: 2028-11-21

Abstract

The utility model discloses a portable folding wheelchair. The portable folding wheelchair comprises a seat board, a backrest and two crossed folding frames, wherein the two crossed folding frames are symmetrically arranged on two sides of the seat board, and each crossed folding frame comprises a first support, a second support and a folding mechanism. The utility model provides a portable folding wheelchair's simple structure, weight is lighter, and the preparation is convenient, makes things convenient for old person or disabled's use, and the wheelchair adopts foldable design, folds and opens and controls through folding mechanism, has promoted the flexibility ability that the wheelchair used, and the volume ratio of wheelchair after folding is less, and the space that occupies is less, convenient transport, and the practicality is good, has fine marketing prospect.

Description

Portable folding wheelchair

Technical Field

The utility model relates to a tool technical field that rides instead of walk, in particular to portable folding wheelchair.

Background

Along with the development of social welfare and the improvement of living standards of people, disabled people increasingly use rehabilitation wheelchairs, the wheelchairs become necessary travel tools for disabled people with lower limbs and people with old and weak bodies, the labor of caregivers is saved, the wheelchair is convenient to transfer in hospitals and can meet the requirement of self-movement in real life, the common wheelchairs in the market at present consist of four parts, namely a wheelchair frame, wheels, a brake device and a seat rest, the electric wheelchair is powered by a storage battery, an electronic device controls a driven power wheelchair, a user can automatically drive the wheelchair to move forward through a control device, the operation flexibility of the wheelchair is enhanced, and the defect that the common wheelchair is pushed by hands to move forward is overcome.

However, although the electric wheelchair can be driven to move forward by itself, most wheelchairs are heavy and inflexible during transportation, the wheelchairs in the market are generally large in space, all parts of the wheelchairs need to be disassembled during movement, and the wheelchair needs to be assembled after transportation is completed.

In view of the above, there is a need for an ultra-light foldable wheelchair to overcome the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable folding wheelchair to solve the not enough of prior art.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a portable folding wheelchair comprises a seat board, a backrest and two crossed folding frames, wherein the two crossed folding frames are symmetrically arranged on two sides of the seat board and comprise a first support, a second support and a folding mechanism, the first support and the second support are crossed and rotatably connected, the lower end of the first support is provided with a front wheel, the lower end of the second support is provided with a rear wheel, and the upper end of the first support is detachably connected with one side of the backrest; a first fixing block is arranged on the left side wall of the first support, a second fixing block is arranged on the right side wall of the second support, and the first fixing block and the second fixing block are located at the same height; the folding mechanism comprises a folding handle, a folding connecting line and a connecting assembly, one end of the folding handle is rotatably connected with the second support through a pin shaft, and the other end of the folding handle is fixedly connected with the folding connecting line; the connecting assembly comprises a first connecting piece, a second connecting piece and a connecting rod, wherein a groove matched with the second connecting piece is formed in the first connecting piece, one end of the first connecting piece is rotatably connected with the first fixing block through a first pin shaft, the other end of the first connecting piece extends into the groove of the second connecting piece and is rotatably connected with the second connecting piece through a second pin shaft, and the second connecting piece is rotatably connected with the second fixing block through a third pin shaft; and connecting rings are arranged at two ends of the connecting rod, one of the two connecting rings is sleeved on the second pin shaft, and the other connecting ring is fixedly connected with the folding connecting wire.

Preferably, a handle is arranged at the upper end of the first bracket.

Preferably, the lower end of the handle is provided with a telescopic assembly, the telescopic assembly comprises a telescopic pipe and a telescopic adjusting assembly, and the telescopic pipe is fixed on the first support through the telescopic adjusting assembly.

Preferably, the portable folding wheelchair further comprises a brake device, the brake device comprises a brake handle, a brake cable and a brake, the brake handle is arranged on the handle, the brake is arranged at the right end of the lower part of the crossed folding frame, the upper end of the brake cable is connected with the brake handle, and the lower end of the brake cable is connected with the brake.

Preferably, the seat plate is made of canvas materials.

Preferably, the backrest is made of canvas materials.

Preferably, the first support and the second support of the cross folding frame are both hollow steel tube structures.

Preferably, the second brackets of the two cross folding legs are fixedly connected through a connecting pipe.

Preferably, the backrest is detachably connected with the first bracket through a backrest clip.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a portable folding wheelchair's simple structure, weight is lighter, and the preparation is convenient, makes things convenient for old person or disabled's use, and the wheelchair adopts foldable design, folds and opens and controls through folding mechanism, has promoted the flexibility ability that the wheelchair used, and the volume ratio of wheelchair after folding is less, and the space that occupies is less, convenient transport, and the practicality is good, has fine marketing prospect.

Drawings

FIG. 1 is a right side view of the portable folding wheelchair;

FIG. 2 is a front view of the portable folding wheelchair;

FIG. 3 is a schematic view of a connecting assembly;

fig. 4 is a schematic connection diagram of the telescopic tube, the telescopic adjustment assembly and the first bracket.

In the figure, 1-seat board, 2-backrest, 21-backrest clamp, 3-cross folding rack, 31-first support, 32-second support, 33-front wheel, 34-rear wheel, 35-first fixing block, 36-second fixing block, 37-connecting pipe, 4-folding mechanism, 41-folding handle, 42-folding connecting line, 43-first connecting piece, 44-second connecting piece, 45-connecting rod, 46-first pin shaft, 47-second pin shaft, 48-third pin shaft, 5-handle, 6-telescoping mechanism, 61-telescoping pipe, 611-limiting hole, 62-telescoping adjusting component, 621-limiting seat, 622-plug pin, 623-spring, 624-reset rod, 625-layering, 626-spring mounting groove, 627-pressing strip mounting groove, 628-first connecting shaft, 629-second connecting shaft, 7-brake device, 71-brake handle and 72-brake cable.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 4, the utility model provides a portable folding wheelchair, which comprises a seat plate 1, a backrest 2 and two cross folding frames 3, wherein the two cross folding frames 3 are symmetrically arranged at two sides of the seat plate 1, the cross folding frames 3 comprise a first bracket 31, a second bracket 32 and a folding mechanism 4, the first bracket 31 and the second bracket 32 are connected in a cross rotating manner through a rotating shaft, the lower end of the first bracket 31 is provided with a front wheel 33, the lower end of the second bracket 32 is provided with a rear wheel 34, and the upper end of the first bracket 31 is detachably connected with one side of the backrest 2; a first fixing block 35 is arranged on the left side wall of the first bracket 31, a second fixing block 36 is arranged on the right side wall of the second bracket 32, and the first fixing block 35 and the second fixing block 36 are positioned at the same height; the folding mechanism 4 comprises a folding handle 41, a folding connecting line 42 and a connecting assembly, wherein one end of the folding handle 41 is rotatably connected with the second bracket 32 through a pin shaft, and the other end of the folding handle 41 is fixedly connected with the folding connecting line 42; the connecting assembly comprises a first connecting piece 43, a second connecting piece 44 and a connecting rod 45, wherein a groove matched with the second connecting piece 44 is formed in the first connecting piece 43, one end of the first connecting piece 43 is rotatably connected with the first fixing block 35 through a first pin shaft 46, the other end of the first connecting piece 43 extends into the groove of the second connecting piece 44 and is rotatably connected with the second connecting piece 44 through a second pin shaft 47, and the second connecting piece 44 is rotatably connected with the second fixing block 36 through a third pin shaft 48; two ends of the connecting rod 45 are provided with connecting rings, one of the two connecting rings is sleeved on the second pin shaft 47, and the other connecting ring is fixedly connected with the folding connecting line 42.

Furthermore, the seat board 1 is made of canvas material.

Furthermore, the backrest 2 is made of canvas.

Further, the backrest 2 is detachably connected to the first bracket 31 by the backrest clip 21.

Further, the first bracket 31 and the second bracket 32 of the cross folding leg 3 are both hollow steel tube structures.

Further, the second supports 32 of the two cross-folding legs 3 are fixedly connected with each other by a connecting pipe 37.

Further, a handle 5 is provided at the upper end of the first bracket 31.

Further, the first support 31 is a hollow tubular structure, the lower end of the handle 5 is provided with a telescopic mechanism 6, the telescopic mechanism comprises a telescopic tube 61 and a telescopic adjusting assembly 62, one end of the telescopic tube 61 is inserted into the first support 31, and is fixedly connected with the first support 31 through the telescopic adjusting assembly 62.

The tube wall of the telescopic tube 61 in the height direction of the telescopic tube 61 is provided with a limiting hole 611.

The telescopic adjusting assembly 62 comprises a limiting seat 621, a pin 622, a spring 623, a reset rod 624, a pressing bar 625, the limiting seat 621 is welded on the first support 31, a spring mounting groove 626 is arranged in the limiting seat 621, one side of the limiting seat 621 far away from the first support 31 is provided with a pressing bar mounting groove 627, one end of the pin 622 is movably inserted in the spring mounting groove 626, the spring 623 is sleeved on the pin 622, one end of the spring 623 is connected with the inner wall of the spring mounting groove 626, the other end of the spring 623 is connected with the reset rod 624, the spring 623 and the reset rod 624 are both arranged in the spring mounting groove 626, the pressing bar 625 is connected with the pin 622 through a first connecting shaft 628, and the pressing bar 625 is fixed in the pressing bar mounting groove 627 through a second connecting.

When the telescopic tube 61 is used, one end of the pressing bar 625 is pressed firstly, the pressing bar 625 rotates by taking the second connecting shaft 629 as a central line, the other end of the pressing bar 625 drives the bolt 622 through the first connecting shaft 628, the bolt 622 leaves the limiting hole 611, then the telescopic tube 61 slides upwards or downwards along the first support 31, the pressing bar 625 is released, the bolt 622 presses the outer wall surface of the telescopic tube 61, and the telescopic tube 61 slides upwards or downwards along the first support 31 until the bolt 622 enters the other limiting hole 611. The telescopic adjusting assembly 62 can prevent the telescopic tube 61 from shaking, and the stability of the wheelchair is improved.

Furthermore, the portable folding wheelchair also comprises a brake device 7, the brake device 7 comprises a brake handle 71, a brake cable 72 and a brake, the brake handle 71 is arranged on the handle 5, the brake is arranged at the right end of the lower part of the cross folding frame 3, the upper end of the brake cable 72 is connected with the brake handle 71, and the lower end of the brake cable 72 is connected with the brake for reducing the speed of the wheelchair and also stopping the wheelchair.

The utility model provides a portable folding wheelchair's theory of operation as follows:

when the portable folding wheelchair is in the state shown in fig. 1, the front end of the folding handle 41 is manually pulled to enable the folding handle 41 to rotate by taking the pin shaft as the axis, and the first connecting sheet 43 and the second connecting sheet 44 are folded under the driving of the folding connecting line 42, so that the first bracket 31 and the second bracket 32 are folded, and the whole framework is completely folded; when the framework is turned up, the front end of the folding handle 41 is manually pulled, so that the folding handle 41 rotates by taking the pin shaft as the axis, the first connecting piece 43 and the second connecting piece 44 are unfolded under the driving of the folding connecting line 42, and the first support 31 and the second support 32 are unfolded to complete the fixation of the whole framework. The utility model provides a portable folding wheelchair's simple structure, weight is lighter, and the preparation is convenient, makes things convenient for old person or disabled's use, and the wheelchair adopts foldable design, folds and opens and controls through folding mechanism 4, has promoted the flexibility ability that the wheelchair used, and the volume ratio of wheelchair after folding is less, and the space that occupies is less, convenient transport, and the practicality is good, has fine marketing prospect.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A portable folding wheelchair is characterized in that: the folding seat comprises a seat board, a backrest and two crossed folding frames, wherein the two crossed folding frames are symmetrically arranged on two sides of the seat board and comprise a first support, a second support and a folding mechanism, the first support and the second support are in crossed rotary connection, the lower end of the first support is provided with a front wheel, the lower end of the second support is provided with a rear wheel, and the upper end of the first support is detachably connected with one side of the backrest; a first fixing block is arranged on the left side wall of the first support, a second fixing block is arranged on the right side wall of the second support, and the first fixing block and the second fixing block are located at the same height; the folding mechanism comprises a folding handle, a folding connecting line and a connecting assembly, one end of the folding handle is rotatably connected with the second support through a pin shaft, and the other end of the folding handle is fixedly connected with the folding connecting line; the connecting assembly comprises a first connecting piece, a second connecting piece and a connecting rod, wherein a groove matched with the second connecting piece is formed in the first connecting piece, one end of the first connecting piece is rotatably connected with the first fixing block through a first pin shaft, the other end of the first connecting piece extends into the groove of the second connecting piece and is rotatably connected with the second connecting piece through a second pin shaft, and the second connecting piece is rotatably connected with the second fixing block through a third pin shaft; and connecting rings are arranged at two ends of the connecting rod, one of the two connecting rings is sleeved on the second pin shaft, and the other connecting ring is fixedly connected with the folding connecting wire.

2. The portable folding wheelchair as claimed in claim 1, wherein: the upper end of the first support is provided with a handle.

3. The portable folding wheelchair as claimed in claim 2, wherein: the lower extreme of handle is equipped with flexible subassembly, flexible subassembly includes flexible pipe and flexible adjusting part, flexible pipe is fixed through flexible adjusting part on the first support.

4. The portable folding wheelchair as claimed in claim 2, wherein: the portable folding wheelchair further comprises a brake device, the brake device comprises a brake handle, a brake cable and a brake, the brake handle is arranged on the handle, the brake is arranged at the right end of the lower part of the crossed folding frame, the upper end of the brake cable is connected with the brake handle, and the lower end of the brake cable is connected with the brake.

5. The portable folding wheelchair as claimed in claim 1, wherein: the seat board is made of canvas materials.

6. The portable folding wheelchair as claimed in claim 1, wherein: the backrest is made of canvas materials.

7. The portable folding wheelchair as claimed in claim 1, wherein: the first support and the second support of the cross folding frame are both hollow steel tube structures.

8. The portable folding wheelchair as claimed in claim 1, wherein: the second brackets of the two crossed folding frames are fixedly connected through a connecting pipe.

9. The portable folding wheelchair as claimed in claim 1, wherein: the backrest is detachably connected with the first support through a backrest clamp.