Crank Star Of Stair-climbing Wheelchair

With the advent of an aging society and the increase number in the disabilities persons, the wheelchairs play a more important role in the living, the staircase can be seen everywhere in life limits the use of an ordinary wheelchair, the purpose of this study is to design affordable and reasonable, safe and reliable performance.When walking on level ground as an ordinary electric wheelchair, and in others on the stairs like a simple auxiliary function of electric stairs.Through a variety of research on climbing wheelchair in the world, in the summary of the advantages and disadvantages of various climb, we find an institutions that using a crank sprocket body as an electric stair climbing. When walking on level ground, the wheel hub electric motor drive as an ordinary wheelchair, electric wheelchair by two wheel motor controller to achieve differential movement so as to realize a small turning radius turn. When climbing stairs, in the back of the support caster in electric effect of putting away, climbing the motor will be powered by the harmonic gear transmission to the crank sprocket, two-wheel turn motion, in order to achieve down the stairs.Crank-wheel mechanism has straight path, take the bumps were not feeling up and down, but also has a wide range of sizes to adapt to the different stairs. Stair climbing wheelchair is new equipment. The wheelchairs can improve mobility of persons for disabilities and the elderly, and it can adapt to different conditions roads, be able to climb steps and stairs and other obstacles. As a new style of transport, the wheelchair can be applied not only to the hospital, community, nursing home and family environment, but also in the tourist attractions, streets, banks and shopping malls and other public places, and has broad market prospects.