CN2907609Y

CN2907609Y - Wheel chair driven by handlebar

Info

Publication number: CN2907609Y
Application number: CN 200620020693
Authority: CN
Inventors: 梁建福
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-29
Filing date: 2006-04-29
Publication date: 2007-06-06
Anticipated expiration: 2016-04-29

Abstract

This utility model directs to a handle-driven wheelchair which is pertained to a manpower wheelchair. The wheelchair is provided with two symmetric permanent seats at the right and left sides. Bearings are positioned on the permanent seats. A sprocket shaft that is positioned with the driving chain wheel is positioned in a internal bearing hole. A rocker lever with a handspike is positioned on the outer side surface of the driving chain wheel. A principal wheel axis is provides with unidirectional ratchet chain wheel assembly at two sides. A chain is positioned on the driving chain wheel and the unidirectional ratchet chain wheel assembly. The wheelchair is simple in the structure, convenient to be adjusted, flexible to be operated, suiting for persons with different constitutions.

Description

Handle drives wheel Wheel-chair

Technical field

This utility model belongs to human powered vehicle, relates generally to the wheel Wheel-chair that a kind of people with disability or weak patient use.

Background technology

At present, the wheel Wheel-chair that uses in hospital is not provided with power drive mechanism, and is how capable by nursing staff or families of patients promotion wheelchair Herba Plantaginis during use; When patient's physical ability takes a turn for the better to some extent, patient by bus can only with the hands directly promote the road wheel outer shroud forwards moves it, and not only operational motion is bigger, outside the waste sufferer muscle power, can't adjust its structure according to the crowd of different muscle power, vehicle uses the suitability relatively poor.

Summary of the invention

The purpose of this utility model is exactly problem and the defective at above-mentioned prior art existence, and design provides a kind of handle drives wheel Wheel-chair, reaches to save operator's muscle power, convenient adjusting, adaptation population purpose widely.

Basic design of the present utility model is, symmetry installs and fixes seat on the wheelchair vehicle main body left and right sides, bearing is packed on the holder, the sprocket shaft plug-in mounting that is installing drive sprocket is fixed on the brearing bore, the rocking arm that is provided with hand lever is fitted on the drive sprocket exterior lateral sides, and with drive sprocket off-centre, on the Wheel shaft of both sides, all fixedly mount single direction ratchet formula sprocket assemblies, chain is socketed on drive sprocket and the single direction ratchet formula sprocket assemblies, so far constitutes handle drives wheel Wheel-chair.

This utility model is simple in structure, easy to adjust, can change the master of different size according to the different physical ability situations of different personnel, by movable sprocket, change its gear ratio, change and adjust the long and short of rocking arm, increase or reduce driving moment, satisfy and adapt to various physical people's use needs, applied widely, adaptability is strong, uses flexibly.

Description of drawings

Fig. 1 is a handle drives wheel Wheel-chair assembly structure sketch map;

Fig. 2 is bowing to view of Fig. 1.

Piece number explanation among the figure:

1, Wheel shaft, 2, single direction ratchet formula sprocket assemblies, 3, chain, 4, holder, 5, drive sprocket, 6, sprocket shaft, 7, rocking arm, 8, hand lever, 9, wheelchair vehicle main body, 10, bearing.

The specific embodiment

Below in conjunction with accompanying drawing this utility model optimum implementation is described in detail.Handle drives wheel Wheel-chair comprises wheelchair vehicle main body 9, symmetry installs and fixes seat 4 on wheelchair vehicle main body 9 left and right sides, bearing 10 is packed on the holder 4, sprocket shaft 6 plug-in mountings that installing drive sprocket 5 are fixed on bearing 10 endoporus, the rocking arm 7 that is provided with hand lever 8 is fitted on drive sprocket 5 exterior lateral sides, and with drive sprocket 5 off-centre, all fixedly mount single direction ratchet formula sprocket assemblies 2 on the Wheel shaft 1 of both sides, chain 3 is socketed on drive sprocket 5 and the single direction ratchet formula sprocket assemblies 2.Rocking arm 7 is pull bar telescopic structure or hinge accordion structure.

During use, the hand lever 8 of the corresponding side of each autorotation of occupant's both hands drives the wheel chair wheel rotation and moves ahead through rocking arm 7, drive sprocket 5, chain 3, single direction ratchet formula sprocket assemblies 2.Both sides hand lever 8 is rotatably assorted mutually, realizes that wheel the left and right of Wheel-chair turns to.

Claims

1, a kind of handle drives wheel Wheel-chair, comprise wheelchair vehicle main body (9), it is characterized in that symmetry installs and fixes seat (4) on wheelchair vehicle main body (9) left and right sides, bearing (10) is packed on the holder (4), sprocket shaft (6) plug-in mounting that is installing drive sprocket (5) is fixed on bearing (10) endoporus, the rocking arm (7) that is provided with hand lever (8) is fitted on drive sprocket (5) exterior lateral sides, and with drive sprocket (5) off-centre, all fixedly mount single direction ratchet formula sprocket assemblies (2) on the Wheel shaft (1) of both sides, chain (3) is socketed on drive sprocket (5) and the single direction ratchet formula sprocket assemblies (2).

2, handle drives wheel Wheel-chair according to claim 1 is characterized in that rocking arm (7) is pull bar telescopic structure or hinge accordion structure.