A drive mechanism includes a housing, a stationary shaft, at least one acceleration gear assembly, a rotation plate, and at least two centrifugal blades. The acceleration gear assembly having a plurality of acceleration gears is disposed inside the housing and pivots on the stationary shaft, and skewed teeth of the housing engage with the acceleration gears to force the acceleration gears to rotate as the housing rotates. The rotation plate is disposed inside the housing and pivots on the stationary shaft, and is actuated by the acceleration gear assembly and has a first end surface, a second end surface, and a first annular surface connected with the first and the second end surfaces. The centrifugal blades are disposed on the second end surface, and one side of the centrifugal blades has a unidirectional rotatable element engaging with the skewed teeth when the rotation direction of the housing reverses.