A kind of power-driven mechanism,Include a flower-drum,One first driving wheel,Second driving wheel of one coaxially connected first driving wheel,The rocking bar of one the first driving wheel of connection,One first unidirectional driven wheel,One second unidirectional driven wheel,And a transmission component,The first,One end of the second unidirectional coaxially connected flower-drum of driven wheel,Transmission component has one first driving member and one second driving member,First driving member connects the first driving wheel and the first unidirectional driven wheel,Make the first driving wheel and the first unidirectional driven wheel driving direction having the same,Second driving member connects the second driving wheel and the second unidirectional driven wheel,Make the second driving wheel that there is opposite driving direction with the second unidirectional driven wheel. Thereby, as long as repetitiousness operates rocking bar in a manner of being pushed forward Hou and draw, flower-drum can be driven to rotate and reach powerdriven effect.一種動力驅動機構，包含有一花鼓、一第一驅動輪、一同軸連接第一驅動輪之第二驅動輪、一連接第一驅動輪之搖桿、一第一單向從動輪、一第二單向從動輪，以及一傳動組件，第一、第二單向從動輪同軸連接花鼓之一端，傳動組件具有一第一傳動件及一第二傳動件，第一傳動件連接第一驅動輪及第一單向從動輪，使第一驅動輪及第一單向從動輪具有相同的驅動方向，第二傳動件連接第二驅動輪與第二單向從動輪，使第二驅動輪與第二單向從動輪具有相反的驅動方向。藉此，只要以前推後拉的方式反覆操作搖桿，即可帶動花鼓轉動而達到動力傳動的效果。
