Wheelchair
A wheelchair and backrest technology is applied in the field of wheelchairs with the function of assisting the transfer between beds and chairs, and can solve the problems of the bed body cannot be used normally, the wheelchair structure is wide, and the dismantling and other problems can be solved.
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[0026] Embodiment one: see figure 1 Shown, a kind of wheelchair comprises vehicle frame 1, wheel 2, seat cushion 3, backrest 4, front curtain board 5, pedal 6 and armrest 7, is provided with deformation driving device, and described deformation driving device drives described backrest and The front curtain board lifts and descends to make the wheelchair change between the chair shape and the lying state.
[0027] See attached figure 2 , the deformation driving device is composed of a backrest driving device and a front curtain driving device, the backrest 4 is arranged on the backrest bracket, and the backrest driving device includes a first connecting rod 8 and a first push rod 9, the first connecting rod The rotation fulcrum 10 is connected with the vehicle frame 1, one end of the first connecting rod 8 is connected with the backrest bracket in rotation, and the other end of the first connecting rod 8 is connected with the end of the first push rod 9; the front curtain pla...
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