ELECTRIC WHEELCHAIR CAPABLE OF CLIMBING STAIRS AND METHOD FOR USING SAME TO ASCEND AND DESCEND STEPS

Title:

ELECTRIC WHEELCHAIR CAPABLE OF CLIMBING STAIRS AND METHOD FOR USING SAME TO ASCEND AND DESCEND STEPS

Document Type and Number:

WIPO Patent Application WO/2020/252759

Kind Code:

A1

Abstract:

An electric wheelchair capable of climbing stairs and a method for using same to ascend and descend steps, the electric wheelchair consisting of a seat body (1), universal wheels (6), driving wheels (5), a battery, a main control module (11), an operating lever (13), a support frame (7), pin shafts (4), distance measuring sensor modules (10), a seat angle adjuster (12), chair wheel support rods (2/3/9) and chair wheel lifting devices (8). Two rows containing four universal wheels (6) in total are arranged at the front end of the wheelchair, and two rows containing four driving wheels (5) in total are arranged at the rear end of the wheelchair, wherein each row of universal wheels (6) and driving wheels (5) may be retracted to thus achieve the function of climbing stairs. The electric wheelchair has a novel design and a simple structure, and may safely and steadily go ascend and descend steps. At the same time, the wheelchair may adapt well to flat ground conditions without requiring a user to change the operation state of the wheelchair. The electric wheelchair is convenient to use and is beneficial for people having difficulty moving their lower limbs to move around and participate in social activities.

More Like This:

WO/2011/101422	VEHICLE HAVING A LEVEL COMPENSATION SYSTEM
WO/2018/031533	SELF-BALANCING WHEELCHAIR
WO/2018/163084	A STAIR-CLIMBING DEVICE FOR A WHEELCHAIR, A WHEELCHAIR SUITABLE FOR INSTALLING SUCH A STAIR-CLIMBING DEVICE AND A WHEELCHAIR EQUIPPED WITH SUCH A STAIR-CLIMBING DEVICE

Inventors:

ZENG ZHAOYI (CN)

Application Number:

PCT/CN2019/092197

Publication Date:

December 24, 2020

Filing Date:

June 21, 2019

Export Citation:

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Assignee:

ZENG ZHAOYI (CN)

International Classes:

A61G5/06; A61G5/10

Foreign References:

KR20190056350A	2019-05-24
CN202191423U	2012-04-18
CN101836922A	2010-09-22
CN106176075A	2016-12-07
CN204863728U	2015-12-16
US3592282A	1971-07-13
DE3343463A1	1985-06-13
GB2201926A	1988-09-14

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