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Wheel and crawler type dual-purpose wheelchair for both roads and stairs

A road ladder and dual-purpose technology, which is applied to patient chairs or special transportation tools, vehicle ambulance, medical transportation, etc., can solve the problems of instability, real-time adjustment of seats, and proper center of gravity of the overall mechanism. Adjustment and other issues to achieve the effect of high integration

Inactive Publication Date: 2014-05-07
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent with the patent application number 200910154542.3 uses a wheel-track composite mechanism to realize the function of going up and down stairs, but it does not consider the real-time adjustment of the seat position and posture during the up and down stairs, nor does it consider the center of gravity of the overall mechanism during the up and down stairs. Proper adjustment, especially in the process of transitioning from flat ground to stairs, the wheelchair may turn quickly or become unstable

Method used

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  • Wheel and crawler type dual-purpose wheelchair for both roads and stairs
  • Wheel and crawler type dual-purpose wheelchair for both roads and stairs
  • Wheel and crawler type dual-purpose wheelchair for both roads and stairs

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Embodiment Construction

[0078] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0079] Such as Figure 1 to Figure 7 As shown, this embodiment provides a wheel-track type road-ladder dual-purpose wheelchair, which includes a vehicle frame 100, a seat 103, a front wheel 111, a rear wheel 115, a DC reduction motor 411, a gear transmission system, a crawler belt transmission mechanism, The posture adjustment mechanism for going up and down the stairs and the leveling mechanism for realizing that the seat 103 is always horizontal. Wherein, the DC deceleration motor 411 is detachably connected with the vehicle frame 100 through bolts, and drives the front wheel 111 and the rear wheel 115 to move through the transmission connection of the gear transmission system and the crawler belt transmission mechanism. The leveling mechanism is arranged on both sides of the front end of the seat 103 and h...

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Abstract

The invention relates to the technical field of wheelchairs, particularly to a wheel and crawler type dual-purpose wheelchair for both roads and stairs. The wheelchair comprises a frame, a seat, front wheels, rear wheels, a direct-current gear motor, a gear transmission system, a crawler transmission mechanism, posture adjusting mechanisms and leveling mechanisms, wherein the direct-current gear motor drives the front and rear wheels to move through transmission connection of the gear transmission system and the crawler transmission mechanism; the leveling mechanisms are arranged on two sides of the front end of the seat, adopt symmetrical structures and are formed by movable hinge of a plurality of connecting rods; the posture adjusting mechanisms are arranged on two sides of the lower part of the seat, adopt symmetrical structures and are formed by movable hinge of a plurality of connecting rods; and both the crawler transmission mechanism and the gear transmission system are arranged on two sides of the lower part of the seat and adopt symmetrical structures, the crawler transmission mechanism is formed by rotating connection of a plurality of crawler wheels and connecting shafts, and the gear transmission system is formed by rotating connection of a plurality of gears. The wheelchair can be moved on the flat ground quickly and is safe in going upstairs and downstairs, comfortable, stable, high in practicability and high in operability.

Description

technical field [0001] The invention relates to the technical field of wheelchairs, in particular to a wheel-track type road-ladder dual-purpose wheelchair. Background technique [0002] Wheelchairs are an indispensable means of transportation for the elderly, the infirm and those with lower limb disabilities. However, with the increase of stair-like buildings, their range of activities is greatly reduced, which seriously affects the breadth of their participation in society; in addition, due to their lack of independent mobility sex, need to be accompanied by a special person, which has brought great pressure to the domestic nursing and medical care, and also brought a serious burden to the country's economic development. Therefore, in order to improve the quality of life of these people and relieve social pressure, in addition to increasing their In addition to the barrier-free design of the living environment, it will be necessary to develop wheelchairs that can go up and...

Claims

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Application Information

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IPC IPC(8): A61G5/06
Inventor 李辉张建华赵夺张小俊
Owner HEBEI UNIV OF TECH
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