Research and design of one kind of adjustably assistive walking wheelchair with multi-posture
10.3969/j.issn.1672-8270.2025.11.030
- VernacularTitle:一种多姿态可调助行轮椅的研究与设计
- Author:
Zuojia LI
1
;
Bo WANG
;
Chunlei YU
;
Yuan XU
Author Information
1. 南方医科大学生物医学工程学院 广州 510515
- Publication Type:Journal Article
- Keywords:
Wheelchair with multi postures;
Kinematic simulation;
Static analysis;
Reachable range
- From:
China Medical Equipment
2025;22(11):189-194
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To design one kind of adjustably assistive walking wheelchair with multi postures,so as to improve the quality of life of people with motion disorders,disabilities or semi disabilities on lower limbs.Methods:The adjustably assistive walking wheelchair with multi postures composed of walking mechanism,mechanism of adjusting posture,and chair,which can achieve five postures,including sitting,low sitting,high sitting,standing and lying.One kinematic model of the wheelchair mechanism was established,and Admas software was used to conduct kinematic simulation.Aimed at key components,the statics simulation was analyzed.The test for adjustment of 5 kinds of postures,the test for the reachable range of hands and the test for the stability of adjusted postures were conducted on the physical prototype of the wheelchair.Results:The results of kinematic simulation showed that the method and formula derivation of motion analysis were correct.Static simulation showed that the seat cushion bracket of key load-bearing component did not affect the normal use of wheelchair under the effect of 100 kg load on seat posture.Experimental tests showed that all parameters of posture transformation were consistent with the design objectives and theoretical analysis.The reachable range of hands was between 500 mm and 2300 mm.The tested results of transformation between sitting and lying postures showed that the stability of the system of adjusting posture of wheelchair was favorable.Conclusion:The adjustably assistive walking wheelchair with multi postures can meet the requirement of user in getting things at low and high position through adjusts the height of sitting posture,which can suit the requirement of user at different home scenarios with larger difference at height,such as table,stove and cabinet.
