A connecting rod type stair climbing wheelchair

A stair-climbing wheelchair and link-type technology, which can be used in patient chairs or special transportation tools, vehicle ambulance, medical transportation, etc., can solve the problems of increasing labor load and reducing the stability of stair climbing

Active Publication Date: 2020-07-14
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing wheelchairs used by the elderly need to be manually pushed to climb stairs, and the relative heights of the front wheels and rear wheels of the wheelchair need to be constantly changed, thereby increasing the workload and reducing the stability of climbing stairs

Method used

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  • A connecting rod type stair climbing wheelchair
  • A connecting rod type stair climbing wheelchair

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0019] see figure 1 , figure 2 As shown, a connecting rod type stair climbing wheelchair of the present invention includes a wheelchair seat 1, a front wheel drive module and a rear wheel set installed at the bottom of the wheelchair seat 1, and a front wheel wheel set installed on the front wheel drive module. Group.

[0020] see figure 1 , figure 2 As shown, the front-wheel drive module includes a lead screw 21 and a linear guide rail 26 arranged parallel to each other on the wheelchair base 1, and a nut slide block 22 that engages with the lead screw 21 and can slide linearly along the linear guide rail 26. Its output shaft is connected to the The motor 25 connected to the right end of...

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Abstract

The invention discloses a connecting rod type climbing wheelchair, and belongs to the field of household wheelchairs. The connecting rod type climbing wheelchair comprises a wheelchair seat, a front wheel drive module and a back wheel set which are arranged at the bottom of the wheelchair seat, and a front wheel set arranged on the front wheel drive module; the front wheel drive module comprises alead screw, a linear guide rail, a nut sliding block and a motor, the front wheel set comprises a connecting rod C, a connecting rod D, a friction slab and a roller, the connecting rod A, the connecting rod B, the connecting C and the connecting rod D share the same plane, the included angle formed between the connecting rod C and the connecting rod D is larger than 90 degrees, and due to combination of the lead screw and the connecting rod mechanism, alternate climbing motions of the friction slab and the roller in the front wheel set are achieved; four son rollers capable of freely rotatingare evenly arranged at the periphery of the back wheel A, and climbing motions can be achieved under the drive of the front wheel set. The wheelchair connecting rod type climbing is simple and reasonable in structure, and the connecting rods synchronously drive the front wheels to achieve lifting interactive wandering step climbing and drive the back wheels to achieve passive rolling type step climbing.

Description

technical field [0001] The invention relates to a connecting rod type wheelchair for climbing stairs, which belongs to the technical field of household wheelchairs. Background technique [0002] The existing wheelchairs used by the elderly all need to be manually pushed to climb stairs, and the relative heights of the front wheels and rear wheels of the wheelchair need to be constantly changed, thereby increasing the workload and reducing the stability of climbing stairs. In order to imitate people's stair-climbing action and realize walking and climbing stairs, it is necessary to design a wheelchair with higher stability for climbing stairs. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a connecting rod stair climbing wheelchair with a simple and reasonable structure, a connecting rod synchronously driving the front wheel to lift, interactively stroll and climb steps, and the rear wheel passively rolling to cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61G5/06A61G5/10
CPCA61G5/061A61G5/065A61G5/10
Inventor 班书昊李晓艳何云松蒋学东
Owner CHANGZHOU UNIV
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