通过考虑轮椅使用人群的要求，对前脚板和背板结构的研究，最终决定在前脚板使用齿条机构，背板使用曲柄滑块机构，从而达到轮椅与床之间的转换。通过设计一系列的机械机构，能使用较小的人力将其转换成机械动力，从而完成轮椅到床，床到轮椅的转变，减少轮椅使用人群在轮椅与床之间转变而带来的麻烦，真正实现了轮椅床的作用。%This paper researches on the front foot and back structure according to the demands for the users of wheelchairs and de-cides to use the rack mechanism in forefoot plate and slider-crank mechanism in backplane, so as to transfer the wheelchair and the bed with each other. By using a series of mechanical mechanism, lesser human force can be used to convert it into power, so as to change the wheelchair into the bed. It can remove the users' trouble of transfering the wheelchair to the bed and truly achieve the function.
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