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Lever driven variable-speed wheelchair and working method thereof

A working method, technology of driving gears, applied in the patient's chair or special transport, vehicle ambulance, medical transport, etc.

Inactive Publication Date: 2015-04-08
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem to be solved by this wheelchair is to provide a new type of wheelchair with self-help, labor-saving, adjustable intermittent transmission and continuous transmission, and adjustable speed, so that it can meet the requirements of the disabled for self-help, labor-saving, suitable for complex terrain and large slope conditions, and adjustable speed. needs

Method used

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  • Lever driven variable-speed wheelchair and working method thereof
  • Lever driven variable-speed wheelchair and working method thereof
  • Lever driven variable-speed wheelchair and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A lever-driven variable-speed wheelchair, including a body part, a driving part and a transmission part;

[0055] Wherein, the car body part includes wheels 17, wheel axles 6, vehicle frame 19 and seat 16;

[0056] The driving part includes a driving handle 1, a first driving sprocket 2 and a second driving sprocket 3 coaxially installed;

[0057] The transmission part includes a chain 11, a chain 12, a reversing mechanism, a first driven ratchet 4 and a second driven ratchet 8; the reversing mechanism includes a first drive gear 14 and a second drive gear connected externally. 15. The first drive gear 14 is installed coaxially with the first driven ratchet 4, and the second drive gear 15 is coaxially driven with the second driven ratchet 8 to drive the wheel shaft 6; The installation directions of the first driven ratchet 4 and the second driven ratchet 8 are opposite;

[0058] The first driving sprocket 2 drives the first driven ratchet 4 through the chain 11, and d...

Embodiment 2

[0061] A lever-driven variable-speed wheelchair as described in Embodiment 1, the difference is that the first driving sprocket 2 is also fixed and coaxially provided with an adjusting ring 5, and the second driving sprocket 3 is also fixedly provided with an adjusting disc 10. A second non-intermittent drive adjustment tooth groove 10-1 is provided on the outer edge of the adjustment disc 10, the adjustment ring 5 is sleeved on the outer edge of the adjustment disc 10, and the adjustment ring 5 is hollowed out The first non-intermittent drive adjustment cog 5-1 and the intermittent drive adjustment cog 5-2 are provided, the first non-intermittent drive adjustment cog 5-1 and the second non-intermittent drive adjustment cog 10 -1 Punch setting; the drive handle 1 is inserted into the intermittent drive adjustment cog 5-2 or inserted through the first non-intermittent drive adjustment cog 5-1 and the second non-intermittent drive adjustment cog 10 ‐1 in.

Embodiment 3

[0063] A lever-driven variable-speed wheelchair as described in Embodiments 1 and 2, the difference is that the wheelchair includes two independent wheel axles: a first wheel axle 6-1 and a second wheel axle 6-2, and the first wheel axle A wheel shaft 6-1 is used to drive the right wheel, and the second wheel shaft 6-2 is used to drive the left wheel; the wheelchair also includes two sets of independent drive parts and transmission parts: the first drive Part 1-1, the first transmission part 1-3, the second drive part 1-2 and the second transmission part 1-4; the first drive part 1-1 and the first transmission part 1-3 are used to drive the first A wheel shaft 6-1 further drives the right wheel, and the second driving part 1-2 and the second transmission part 1-4 are used to drive the second wheel shaft 6-2 so as to drive the left wheel.

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Abstract

A lever driven variable-speed wheelchair comprises a body portion, a drive portion and a transmission portion. The drive portion comprises a drive handle, a first driving sprocket and a second driving sprocket, the first driving sprocket and the second driving sprocket are coaxially mounted, the transmission portion comprises a chain, a reversing mechanism, a first driven ratchet wheel and a second driven ratchet wheel, the reversing mechanism comprises a first drive gear and a second drive gear which are connected with each other in an externally meshed manner, the first drive gear and the first driven ratchet wheel are coaxially mounted, the second drive gear and the second driven ratchet wheel coaxially drive a wheel axle, and the mounting direction of the first driven ratchet wheel is opposite to that of the second driven ratchet wheel. The drive handle individually drives the first driving sprocket or simultaneously drives the first driving sprocket and the second driving sprocket, and the wheel axle is continuously and indirectly driven by the aid of the first driven ratchet wheel and the second driven ratchet wheel.

Description

Technical field: [0001] The invention relates to a lever-driven variable-speed wheelchair and a working method thereof, belonging to the technical field of auxiliary medical equipment. Background technique: [0002] Disabled persons are a group of widespread concern in the society, and wheelchairs are an important branch of handicapped aids. Since wheelchairs are closely related to disabled persons, it is necessary to design a wheelchair with simple structure, low cost, high efficiency, labor-saving, and easy adjustment. It is of great significance for the disabled to improve their self-care ability. [0003] There are many types of wheelchairs, but they are mainly divided into two categories: ordinary wheelchairs and special wheelchairs. Ordinary wheelchairs are generally composed of a frame, a seat, wheels, brakes, and armrests; they have the characteristics of simple structure and low cost. However, ordinary wheelchairs have the disadvantages of single function, laborio...

Claims

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Application Information

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IPC IPC(8): A61G5/04A61G5/10
Inventor 陈修龙孙建滨蒋德玉栾兴贺陈天祥杨青坤颜飞
Owner SHANDONG UNIV OF SCI & TECH