Double-beam sliding piece linkage folding up-down treading type portable bicycle

Abstract

The invention discloses a double-beam sliding piece linkage folding up-down treading type portable bicycle which comprises double beams, a folding piece, a sliding piece, two groove-shaped connecting pieces, a front frame, a front fork, pedals, a lower connecting rod, an upper connecting rod, a saddle pipe, a saddle, a V-shaped folding handle, a front wheel, a rear wheel and a driving mechanism. The double beams are formed by welding two flat pipes, two crosspieces, a bearing seat, a connecting pipe, a positioning shaft, a left rear fork piece and a right rear fork piece. The folding piece is connected with the front ends of the double beams and the rear end of the front frame, the sliding piece is connected with the middles of the double beams in a sliding mode, the groove-shaped connecting pieces are welded to the front frame and the saddle pipe respectively, the rear wheel is installed on the left rear fork piece and the right rear fork piece, the sliding piece is connected with the lower connecting rod and the upper connecting rod, the lower connecting rod and the upper connecting rod are then connected with the groove-shaped connecting pieces on the front frame and the saddle pipe, a double-beam folding piece is connected with the front end of the saddle pipe, the saddle is connected with the rear end of the saddle pipe, the front fork is connected with the front frame, the front wheel is connected to the front fork, the V-shaped folding handle is connected with the front fork, and the driving mechanism comprises a left crankshaft, a right crankshaft, a chain wheel, two foot bars, the two pedals, a flywheel and a chain.

Description

technical field [0001] The invention relates to a folding bicycle, in particular to a double-beam sliding part linkage folding up and down stepping type portable bicycle. Background technique [0002] Folding three-wheeled electric vehicles on the market do not have fast folding speed and relatively small folding three-wheeled electric vehicles. This is due to reasons such as structure, and the satisfactory effect of box type cannot be achieved after folding. Contents of the invention [0003] The purpose of the invention: to provide a double-beam slider linkage folding up and down stepping type portable bicycle which adopts the slider to slide in the double beam and the linkage connecting rod structure as the folding method. [0004] Technical solution: double-beam slider linkage folding up and down stepping type portable bicycle, including double beams, folding parts, sliders, two-slot connectors, front frame, front fork, pedals, lower link, upper link, seat tube , sadd...

AI Technical Summary

Problems solved by technology

[0002]There are no foldable three-wheeled electric vehicles on the market that can be folded fast and folded relatively small. This is due to structural reasons and other reasons. , the satisfactory effect of the box type cannot be achieved after folding

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