CN201333139Y

CN201333139Y - Hand-cranking wheelchair

Info

Publication number: CN201333139Y
Application number: CNU200820199305XU
Authority: CN
Inventors: 杨瑞祥
Original assignee: Kenstone Metal Kunshan Co Ltd
Current assignee: Kenstone Metal Kunshan Co Ltd
Priority date: 2008-11-27
Filing date: 2008-11-27
Publication date: 2009-10-28
Anticipated expiration: 2018-11-27

Abstract

The utility model relates to a hand-cranking wheelchair which comprises a carriage main-body, a universal wheel and wheels, wherein the universal wheel is arranged at the lower part of the carriage main-body. Small handwheels are respectively arranged beside handrails on two sides of the carriage main-body; driving wheels are fixedly connected to the small handwheels in a coaxial manner; driven wheels are coaxially and fixedly connected on the wheels; and the driving wheels and the driven wheels are connected through driving members in a transmission manner. The hand-cranking wheelchair has the advantages as follows: a hand-cranking manner is adopted, the magnitude of the acting force for driving the wheelchair is changed through an actuating mechanism, and the hand-cranking wheelchair is more labor-saving as compared with the driving manner of a traditional wheelchair that wheel hand rings are pushed by hand; the small handwheels are arranged on the two sides of the handrails, thereby being more convenient and comfortable in rotation; the small handwheels are adopted, so that hands are clean and sanitary during the moving process, and arms and a waist feel more comfortable when moving for a long time; and when the hand-cranking wheelchair is used, control cranks are continuously rotated by two hands rather than the hand rings which are rotated intermittently, thereby relieving and facilitating the outgoing difficulties of an operator. The hand-cranking wheelchair provides an effective tool for the walking of the handicapped.

Description

Hand wheelchair

Technical field

This utility model relates to a kind of manpower transportation of bicycle class, belongs to a kind of hand wheelchair.

Background technology

At present, the wheelchair of selling on the market various for disabled persons, its basic comprising are vehicle frame, universal wheel, wheel, medicated cushion, back pad, handrail and a hands circle that is installed on the axletree.When the operator rotated the hands circle of both sides forward, wheelchair travelled forward.When the operator turns round when starting to enclose, wheelchair moves backward.The wheelchair of this structure is because the hands circle can be subjected to the pollution on ground easily near ground when rotating, and operator's easy handle in rotation process is made dirty.In addition, because this type of drive is to realize moving ahead or retreating of wheelchair by directly shaking axletree, so the operator needs the cooperation ability normal running of bigger arm strength and waist, this all is inapplicable for a lot of arms and the unable people with disability of waist.Because the position of hands circle is arranged on operator's the back lower place, the arm and the waist that promote hands ring manipulation people for a long time can not feel well; The hands circle rotates to intermittently rotating operation inconvenience.

The utility model content

The purpose of this utility model is to have overcome deficiency of the prior art, and a kind of more comfortable, hand wheelchair in labour-saving is provided, and its handwheel separates with wheel, and adopts chain transmission or band transmission to carry out transmission.

In order to reach above purpose, this utility model adopts following technical scheme: a kind of hand wheelchair comprises: main body of vehicle frame, be arranged on the universal wheel and the wheel of described main body of vehicle frame below, two side handrail limits of described main body of vehicle frame respectively are provided with small handwheel, the coaxial drivewheel that is fixedly connected with on the described small handwheel, the coaxial follower that is fixedly connected with is in transmission connection by driving member between described drivewheel and the follower on the described wheel.

Described drivewheel and follower are sprocket wheel or synchronous pulley, and described driving member is chain or the synchronous band that is stretched on described drivewheel and the follower.

The gear ratio of described drivewheel and follower is greater than 1.

On the wheel rim of described small handwheel crank is installed.

Described crank can radially fold.

Described small handwheel is installed in the front portion of two side handrails of described main body of vehicle frame.

Because this utility model has adopted above technical scheme, its advantage is:

1, small handwheel is set separately, and, makes this utility model more laborsaving than traditional push chairs by suitable gear ratio being set for drivewheel and follower.

2, small handwheel is arranged on the place ahead, and also more convenient, more comfortable when not only clean hygiene more, and user rotates, under the situation of advancing for a long time, it is very tired that the arm of user and waist can not felt.

Description of drawings

Accompanying drawing 1 is a perspective view of the present utility model;

Accompanying drawing 2 is the small handwheel perspective view;

Wherein: 1, universal wheel; 2, crossbar; 3, medicated cushion; 4, driving member; 5, small handwheel; 6, back pad; 7, handrail; 8, vehicle frame; 9, drivewheel; 10, crank; 11, follower; 12, wheel.

The specific embodiment

Below in conjunction with the drawings and specific embodiments utility model is described in further detail:

As shown in Figure 1, hand wheelchair comprises main body of vehicle frame, is arranged on the universal wheel 1 and the wheel 12 of described main body of vehicle frame below, and main body of vehicle frame comprises vehicle frame 8, medicated cushion 3, handrail 7, back pad 6 and crossbar 2.Two side handrails, 7 limits of described main body of vehicle frame respectively are provided with small handwheel 5, the coaxial drivewheel 9 that is fixedly connected with on the small handwheel 5, and the coaxial follower 11 that is fixedly connected with is in transmission connection by driving member 4 between drivewheel 9 and the follower 11 on the wheel 12.What present embodiment used is the chain sprocket transmission.As shown in Figure 2, crank 10 is connected with small handwheel 5, and is when not using crank 10, radially folding crank 10.Small handwheel 5 is connected with drive sprocket, and drive sprocket is connected with chain, chain be connected by movable sprocket, be connected with wheel 12 by movable sprocket.When rotating small handwheel 5 by crank 10, driving force is sent to wheel 12 by chain sprocket, drives wheel 12 and advances.When the operator rotated small handwheel 5 forward, wheelchair travelled forward, otherwise wheelchair is motion backward then.In proceeding slowly, left hand can be realized turning right relative to firmly rotating the left side small handwheel, otherwise opposite.

Claims

1, a kind of hand wheelchair, comprise: main body of vehicle frame, be arranged on the universal wheel (1) and the wheel (12) of described main body of vehicle frame below, it is characterized in that: two side handrails (7) limit of described main body of vehicle frame respectively is provided with small handwheel (5), described small handwheel (5) is gone up the coaxial drivewheel (9) that is fixedly connected with, described wheel (12) is gone up the coaxial follower (11) that is fixedly connected with, and is in transmission connection by driving member (4) between described drivewheel (9) and the follower (11).

2, hand wheelchair according to claim 1 is characterized in that: described drivewheel (9) and follower (11) are sprocket wheel, and described driving member (4) is for being stretched in the chain on described drivewheel (9) and the follower (11).

3, hand wheelchair according to claim 1 is characterized in that: described drivewheel (9) and follower (11) are synchronous pulley, and described driving member (4) is for being stretched in the synchronous band of (11) on described drivewheel (9) and the follower.

4, hand wheelchair according to claim 1 is characterized in that: the gear ratio of described drivewheel (9) and follower (11) is greater than 1.

5, hand wheelchair according to claim 1 is characterized in that: crank (10) is installed on the wheel rim of described small handwheel (5).

6, hand wheelchair according to claim 5 is characterized in that: described crank (10) can radially fold.

7, hand wheelchair according to claim 1 is characterized in that: described small handwheel (5) is installed in the front portion of two side handrails (7) of described main body of vehicle frame.