Bicycle power assist crank

Abstract

The utility model discloses a bicycle force increasing crank, including the crank body that is bent to and fro by a rod, still including the bending type reinforcing rib and the decorative sheet, the crank body includes the upper rod, the middle transition arc rod, the lower straight rod of integrative constitution, the end of upper rod is provided with the pedal axle hole, the end of lower straight rod is provided with the middle axle hole, the axis of upper rod, the axis of middle transition arc rod, the axis of lower straight rod are located on the same plane, the axis of pedal axle hole is parallel with the axis of middle axle hole, the both ends of bending type reinforcing rib are fixedly connected with upper rod and lower straight rod respectively, the bending direction of bending type reinforcing rib is opposite with the bending direction of crank body, and the decorative sheet is fixed between upper rod, bending type reinforcing rib and lower straight rod. The utility model discloses bicycle force increasing crank, simple structure, and the power is saved when riding.

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