Two-wheel/three-wheel bicycle frame steered by means of buttocks

Abstract

The invention discloses a two-wheel / three-wheel bicycle frame steered by means of buttocks. When the two-wheel / three-wheel bicycle frame stretches, front and back wheels are arranged more reasonably, and a saddle pipe extends into a front fork pipe. When folded, the two-wheel / three-wheel bicycle frame becomes smaller. Direction is controlled through buttocks, so that various smaller foldable frames adapting to various persons can be manufactured.

Description

Technical field [0001] The invention relates to a two-wheel and three-wheel bicycle frame whose direction is controlled by the buttocks. Background technique [0002] At present, the known foldable bicycle racks all rely on hands to grasp the direction, so they are folded between the two wheels when they are folded, and the area is large. And they all drive the rear wheels, which is complex, heavy and inconvenient. Contents of the invention [0003] The present invention can be folded smaller, and can drive the front wheel to grasp the direction by the buttocks. A steel pipe with a diameter of 100mm-200mm in diameter is made into the front tube of the bicycle, and one upper and lower tubes are welded on the front of the front tube. Base, each side of the base has a round hole corresponding to 8mm, the folding tube of the handrail is a steel pipe with a diameter of 28.6mm or 25.4mm, and there are also two bases, the lower base of the folding tube of the handrail is fixed o...

AI Technical Summary

Problems solved by technology

[0002] At present, the known foldable bicycle racks all rely on the hand to grasp the direction, so when folding, they are folded between the two wheels, and the area is large.

And they all drive the rear wheels, which is complicated, heavy and inconvenient

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