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Single-hand control device of hand-cranked wheelchair

A wheelchair and hand-operated technology, applied in the field of parts and components, can solve the problems of high manufacturing cost and complex structure, and achieve the effects of low manufacturing cost, simple operation and reasonable design

Active Publication Date: 2015-09-09
TIANJIN RES INST FOR ADVANCED EQUIP TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of complex structure and high manufacturing cost in the hand-operating mechanism of the hand-operated wheelchair disclosed in the prior art, the present invention provides a single-handed hand-operated wheelchair with simple structure, reasonable design, easy operation and low manufacturing cost. control device

Method used

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  • Single-hand control device of hand-cranked wheelchair
  • Single-hand control device of hand-cranked wheelchair

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] like figure 1 As shown, a single-hand control device for a hand-operated wheelchair includes a crank handle 3 and a front wheel 18, wherein the crank handle 3 is a U-shaped handle.

[0014] exist figure 1 Among them, the one-hand control device of this manual wheelchair also includes a steering shaft 14, a front wheel frame 15, a first threaded sleeve 10, a second threaded sleeve 11, a first support screw 4, a second support screw 5, The first driving pulley 1, the second driving pulley 2, a driven pulley 17, the first transmission belt 8, and the second transmission belt 9.

[0015] like figure 1 As shown, the steering shaft 14 is vertically arranged, and one end of the steering shaft 14 can be rotatably assembled with the vehicle frame through the bearing, and the other end is welded and fixed with the front wheel frame 15 .

[0016] exist figure 1 Among them, a front wheel shaft 16 is forked on the front wheel frame 15, and the driven pulley 17 is rotatably suppo...

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Abstract

The invention discloses a single-hand control device of hand-cranked wheelchair. The single-hand control device comprises a crank handle and a front wheel, and is characterized by further comprising a steering shaft, a front wheel frame, two threaded casings, two supporting screws, two driving belt pulleys, a driven belt pulley and two transmission belts assembled on the driving belt pulleys and the driven belt pulley in a surrounding manner, wherein the crank handle is a U-shaped crank handle; the steering shaft is arranged vertically, and the lower end of the steering shaft is fixedly connected with the front wheel frame; the driven belt pulley is rotationally supported on the front wheel frame, and rotates along with the front wheel coaxially and synchronously; the two threaded casings are vertically and symmetrically connected to the front wheel frame; the lower ends of the two supporting screws are in threaded connection with the threaded casings, respectively; supporting seats are arranged at the upper ends of the supporting screws, respectively; both ends of the U-shaped crank handle arranged inside the two threaded casings are transversely and rotationally supported in the supporting seats, respectively; the driving belt pulleys are assembled on the end parts of both ends of the U-shaped crank handle arranged outside the two threaded casings in a non-rotating manner, and rotate along with the U-shaped crank handle coaxially and synchronously. The single-hand control device is reasonable in structure, low in production cost and easy to control.

Description

technical field [0001] The invention relates to parts of a chair specially suitable for disabled persons, in particular to a single-hand control device for a hand-operated wheelchair. Background technique [0002] We know that wheelchairs are an important tool for rehabilitation, and hand-operated wheelchairs are based on ordinary wheelchairs, adding hand-operated devices. The traditional common hand-operated wheelchair is generally suitable for users with sound hands. For some hemiplegic patients or patients with upper limb disabilities, it is impossible to control the wheelchair with one hand. For this reason, the majority of technicians have developed a one-handed control mechanism for hand-operated wheelchairs. For example, CN103029782A Chinese Invention Patent Application Specification published on April 10, 2013 discloses a "tricycle for the disabled with one-handed operation", which includes a frame, brake pads, a driving mechanism and two driven rear wheels, The fra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G5/02A61G5/10
Inventor 张艺炜张德仁
Owner TIANJIN RES INST FOR ADVANCED EQUIP TSINGHUA UNIV
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