Folding bicycle

Abstract

The invention provides a foldable bicycle, relating to a bicycle, in particular to a foldable bicycle which has the advantages of simple structure, obviously shortened size after being folded, compaction and convenient taking as well as storing. The bicycle comprises a bicycle frame, a turning frame, a front wheel, a front wheel shaft, a back wheel, a back wheel shaft, a seating washer and a chainwheel drive mechanism. The bicycle is characterized in that the bicycle frame is provided with a front rod, a back rod and a connecting beam; the lower end of the front rod is connected with the front wheel shaft; the lower end of the back rod is connected with the back wheel shaft; the upper end of the front rod is rotatablely connected with the front end of the connecting beam; the upper end ofthe back rod is rotatablely connected with the back end of the connecting beam; the rotatable connection can be perpendicular to the ground; and at least one rotatable node which can be perpendicularto principal plane is arranged on the connecting beam.

Description

Technical field [0001] The invention involves a bicycle, especially a folding bicycle. Background technique [0002] Ordinary folding bicycles generally only fold the frame between the two wheels horizontally. Although the length and thickness are still too large, although the length and thickness are still too large, and the bumps are bumpy.Seriously affect carrying and storage.At present, there are also reports of some folding bicycle -related technologies. They each have advantages and disadvantages, but there are generally defects such as insufficient folding, not ideal effects and complicated structures. [0003] A practical new patent with a announcement number of 02228086.3 provides a compound folding bicycle. Set up a cover and clamping device on the two connecting rods of the front and rear frames of the bicycle.Formed, the outsourcing connector and the front frame connecting rod are fixed, the bond head is fixed in the cylindrical cavity of the outsourcing joint through...

AI Technical Summary

Problems solved by technology

[0002] Ordinary folding bicycles generally just fold the frame between the two wheels horizontally. Although the length is shortened after folding, the height and thickness are still too large, and They bump into each other, can't fit comfortably, and the folding effect is poor, which seriously affects carrying and storage

At present, some folding bicycle related technologies have been reported. They have their own advantages and disadvantages, but there are generally defects such as insufficient folding, unsatisfactory effect and complicated structure.

Images