Wheel-track combined wheelchair capable of climbing stairs
A wheel-foot combination and stair-climbing technology is used in patient chairs or special transportation tools, vehicle rescue, medical transportation, etc. It can solve the problems of high cost and cannot be driven by human power, and achieve low cost and improve space utilization. The effect of convenient switching of rate and wheel track
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[0034] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0035] combine Figure 1 to Figure 9 , the present invention includes seat 1, track 13, wheel set (rear wheel 4, front wheel 9), seat leveling mechanism (leveling small hand wheel 22, leveling worm gear box 24, screw 12), wheel track switching mechanism (Wheel-track switching small handwheel 19, wheel-track switching worm gear box 18, wheel-track switching screw 2, front wheel rocker 17, rear wheel rocker 20), wheel-track hybrid box 36, track manual electric switching mechanism 30, control System 21 et al. The present invention has three sets of worm gear box structures, and the specific structures are the same. image 3 The specific structural formula given takes the wheel-track switching mechanism part as an example.
[0036] combine figure 1 , image 3 The wheel-track switching device is located on both sides of the wheelchair. ...
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