| 摘要 |
A power generating device for a bicycle comprises a seat vertical tube device (10) and a power generating device (70). The seat vertical tube (10) device comprises a seat tube (20), a fixture block (30), an upper clamping piece (40) and a lower clamping piece (50). The top side of the seat tube is provided with an urging portion (21) and first screw holes (22). The fixture block (30) is provided with first bow-shaped grooves (31) and second screw holes (32) opposite to the first screw holes (22). The upper clamping piece (40) is provided with second bow-shaped grooves (41) opposite to the first bow-shaped grooves (31), the upper clamping piece (40) is provided with a pressing surface (42) downward, and the pressing surface (42) is provided with an axial recess (43). The lower clamping piece (50) is provided with an urging surface (51) and an axial protrusion (52) respectively opposite to the pressing surface (42) and the axial recess (43). The power generating device is provided with piezoelectric power generating pieces (71) located on the urging surface (51) and power output bus ports (72) electrically connected to the piezoelectric power generating pieces (71). Each piezoelectric power generating piece (71) generates power by means of vertical vibration produced by the seat during riding of a rider and outputs the power via the power output bus port (72) for use by peripherals on a bicycle. |
