The invention provides a portable quick folding bicycle. The portable quick folding bicycle comprises a main folding part, a front frame, a rear fork, a five-way tube, a saddle tube, a saddle, a front fork, a V-shaped folding handle, a front wheel, a rear wheel and a driving mechanism, wherein the main folding part comprises a folding box and a connecting rod; the front frame comprises a front beam, a front head tube and a locking mechanism; the front beam is that the front head tube is welded at the front end, the locking mechanism is mounted in the middle part, the connecting rod is connected to the rear end, and the folding box is connected to the rear part; the front fork is connected with the front head tube and the front wheel; the locking mechanism is locked to the folding box; the rear fork mounted to the rear wheel is welded to the folding box and the five-way tube; the saddle tube is rotatably connected with the folding box and the connecting rod; the saddle is connected to the top part of the saddle tube; the V-shaped folding handle is mounted into a straight circular tube on the front fork; the driving mechanism comprises an intermediate shaft, crankshafts, a chain wheel, pedals, a flywheel and a chain, wherein the intermediate shaft is connected into the five-way tube; two crankshafts are mounted at two ends of the intermediate shaft; the chain wheel is fixedly connected to the crankshaft at the right side; the flywheel is connected to the right side of the rear wheel; the chain coils the chain wheel and the flywheel.
Portable quick folding bicycle
2015-12-23
Patent
Electronic Resource
English
IPC: | B62K Fahrräder , CYCLES |
Quick-folding magnetic-positioning portable vertical bicycle
European Patent Office | 2020
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