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Single-arm wheelchair

A wheelchair and one-arm technology, which can be used in patient chairs or special transportation tools, vehicle ambulance, medical transportation, etc., can solve problems such as difficult manufacturing, laborious manipulation, complex structure, etc., and achieve extended force arm, reliable structure, motion smoothing effect

Active Publication Date: 2013-08-14
卫美恒(苏州)医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional common manual wheelchairs are generally suitable for users with sound hands. For some hemiplegic patients or patients with upper limb disabilities, their special signs are not considered. They cannot control the wheelchair with one hand, and the manipulation is laborious.
In addition, there are currently wheelchairs for hemiplegic patients on the market, such as the patent No. 200620119282.8, which uses two shafts, a main shaft and a secondary shaft, and then sets bearings and gear structures on the main shaft and the sub shaft to realize transmission. control, but the method is complex in structure and difficult to manufacture and the transmission efficiency is not high

Method used

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, wherein the "front" mentioned in this specification refers to the attached figure 1 Middle left, "rear" refers to the attached figure 1 The right side shown in , the positional relationship of "upper" and "lower" described in this manual and the attached figure 1 Corresponds to the upper and lower positional relationships shown in:

[0028] A single-arm wheelchair, comprising: a pair of left-right symmetrical frames 500, front wheels 400 rotatably arranged on the pair of frames 500, and front wheels 400 that can be rotated synchronously on the pair of frames 500. The rear wheels 401 and one of the front wheels 402 are connected to the vehicle frame through the universal swivel joint 200 to help the wheelchair complete steering and other actions. The frame 500 is fixedly provided with a rear wheel mount 505 for fixing the rear wheel 401 . The vehicle fr...

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Abstract

The invention discloses a single-arm wheelchair, which comprises a pair of frames, front wheels and a pair of synchronously rotating back wheels, wherein a reversing locking mechanism is rotationally connected to a back wheel installation seat of one frame; the back wheel installation seat comprises an installation bottom plate which is rotationally connected to a back wheel revolving shaft, a first one-way gear and a second one-way gear which are movably arranged on the bottom plate and are parallel to the revolving shaft, and a transmission gear which is coaxially fixed on a back wheel hub;the rotating directions of the first one-way gear and the second one-way gear are opposite; the reversing locking mechanism has three working states: 1, the second one-way gear is separated from the transmission gear, and the first one-way gear is meshed with the transmission gear; 2, the first one-way gear is separated from the transmission gear, and the second one-way gear is meshed with the transmission gear; and 3, both the first one-way gear and the second one-way gear are separated from the transmission gear; a swinging rod is rotationally connected to the frame; one end part of a connecting rod is rotationally connected to the swinging rod; and the other end part of the connecting rod is rotationally connected to the installation bottom plate.

Description

technical field [0001] The invention relates to a wheelchair, in particular to a manual wheelchair which can be operated with one hand. Background technique [0002] The common manual wheelchairs currently on the market that are suitable for disabled people, patients or the elderly usually have a single structure, and most of them are operated by the user's hands or pushed forward by the nursing staff. A common manual wheelchair has a main structure: a vehicle frame, pedals respectively arranged on the vehicle frame, a push handle, a backrest, a seat cushion, a pair of front universal wheels and a pair of rear wheels. Described rear wheel is directly installed on the vehicle frame by wheel axle. Traditional common manual wheelchairs are generally suitable for users with sound hands. For some hemiplegic patients or patients with upper limb disabilities, their special signs are not considered. They cannot control the wheelchair with one hand, and the manipulation is laborious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61G5/00A61G5/10
Inventor 王仰昆
Owner 卫美恒(苏州)医疗器械有限公司
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