Vertical transmission structure and mini-tiller

The utility model discloses a vertical transmission structure and a mini-tiller, the vertical transmission structure comprises an eccentric shaft, a driving gear and a gear ring, the driving gear is rotatably installed on the eccentric shaft, the driving gear and the gear ring fixedly connected on a reduction gearbox shell are installed in a non-coaxial mode, and the eccentric shaft is connected with the eccentric shaft. When rotating, the driving gear is meshed with the inner teeth of the gear ring to form a small-tooth-difference transmission pair, at least one transmission hole is formed in the driving gear, and power is transmitted to the output disc through the transmission hole. The mini-tiller comprises the vertical transmission structure. And a balance block is mounted on the eccentric shaft. By arranging the eccentric shaft and utilizing the eccentric effect of the eccentric shaft, the diameter of a circular track generated by the rotation of the driving gear mounted on the eccentric shaft along with