Patent ID: 9254419
Filing Date: 2016-02-09
CPC Classification: A63B,B63H

Claim Text:
1. An underwater man-powered mechanical propeller, comprising a screw propeller shaft having a one-way flywheel thereon, a screw propeller arranged on the screw propeller shaft, a first bevel gear on the screw propeller shaft, a concentric protective ring encircling the screw propeller, a supporting plate on one side of the protective ring, a first gear and a second gear meshed with each other on the supporting plate, a transitional gear forming a meshing pair together with the second gear on the supporting plate with a drive shaft of the transitional gear passing through the supporting plate, and a second bevel gear provided at one end of the drive shaft which forms a meshing pair together with the first bevel gear; wherein the first gear is connected to a first connecting rod, and the second gear is connected to a second connecting rod.