Wheelchair and operation method thereof
An operation method and wheelchair technology, which can be used in the rescue of vehicles, patient chairs or special transportation tools, medical transportation, etc., can solve the problem of poor wrist force conversion effect, etc., and achieve the effect of convenient long-distance walking and convenient travel.
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[0019] exist figure 1 In the shown embodiment, a kind of wheelchair of the present invention removes the hand wheel rim of the traditional wheelchair, and installs the ratchet drive rod (11) on the hub of the wheel (3). Two ratchet driving rods (11) are left and right symmetrical, and are parallel in the same direction, and are installed on the left and right two wheels (3) hubs with the same inclination angle, and the wheels are installed on the axle shaft (2). The ratchet end (10) of the ratchet drive rod (11) is fixed on the wheel hub of the wheel (3), and the other end is a free end. The free end moves in a reciprocating circular arc around the axle (2). The elastic member in this embodiment is a tension spring (12), one end is fixed on the vehicle frame (1), and the other end is connected to the ratchet drive rod (11).
[0020] When needing to advance, the occupant pulls down the pull bar (14) in front of the seat, drives the ratchet wheel (3) through the shaft of the r...
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