Bevel gears driving bicycle through forward and backward rotation of pedals

Abstract

The invention discloses bevel gears driving a bicycle through forward and backward rotation of pedals and relates to bevel gears. The bevel gears driving the bicycle through forward and backward rotation of the pedals are characterized in that bevel teeth are arranged on the outer circle of a fluted disk; a bevel tooth protecting edge is arranged at the outer ends of the bevel teeth; a center hole is formed in the center of the fluted disk; connection holes are formed in the fluted disk; the bevel tooth protecting edge is annular; the bevel tooth protecting edge, the bevel teeth and the outer ends are connected into a whole; and the height of the bevel tooth protecting edge is equal to that of the bevel teeth. The bevel gears driving the bicycle through forward and backward rotation of the pedals are steady and do not swing when fixed to a one-way bearing pedestal, because of engagement of the two bevel gears driving the bicycle through forward and backward rotation of the pedals and a bridge crossing bevel gear, tooth disengagement is avoided, the engagement effect is greatly improved, transmission of the bicycle is guaranteed, no pollutants are thrown out during engagement of the bevel gears and the bridge crossing bevel gear, trouser legs of a bicycle rider are not contaminated, the trouser legs of the bicycle rider are not clamped at the engagement positions of the bevel gears and the bridge crossing bevel gear, and the popularization value is achieved.

Description

technical field [0001] The present invention relates to a bevel gear, and more specifically relates to a bevel gear for pedals to drive bicycles in forward and reverse rotations. Background technique [0002] A bicycle is mainly composed of a frame, a central axis, a rear wheel, a front wheel, a chain, a chain plate, a flywheel, pedals, brakes and other components. At present, general-purpose bicycles are all one-way clockwise drive bicycles, that is, drive bicycles when the left and right feet step forward. On February 19, 2012, the inventor applied for a bicycle driven by the forward and reverse rotation of the pedals. A bevel gear is installed on the left and right of the central axis of the bicycle driven by the forward and reverse rotation of the plate, and a bridge bevel gear is meshed between the two bevel gears. Because the bevel gear has a large chainring, the two The meshing effect of the first bevel gear and the bridge bevel gear is greatly reduced, and it is ea...

AI Technical Summary

Problems solved by technology

On February 19, 2012, the inventor applied for a bicycle driven by the forward and reverse rotation of the pedals. A bevel gear is installed on the left and right of the central axis of the bicycle driven by the forward and reverse rotation of the plate, and a bridge bevel gear is meshed between the two bevel gears. Because the bevel gear has a large chainring, the two The meshing effect of the first bevel gear and the bridge bevel gear is greatly reduced, and it is easy to lose teeth, and the bicycle cannot be driven. It is easy to pinch the rider's trousers at the meshing place with the bridge bevel gear. For this reason, new pedals are to be explored to drive the bevel gear of the bicycle in reverse rotation.

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