The application relates to a self-cleaning seed
sowing device and a design method thereof, which comprises a front shell, a seed
sowing disc, a sealing ring, a driving shaft, a bottom shell and an air inlet
pipe, wherein the front shell is connected with the bottom shell, a cavity is formed between the front shell and the bottom shell, the seed
sowing disc, the sealing ring and the driving shaft are arranged in the cavity, the seed sowing disc is connected with the driving shaft, the back surface of the seed sowing disc is tightly attached to the sealing ring, the air inlet
pipe is fixed on the bottom shell, and the air inlet
pipe is sealingly connected with the bottom shell. The self-cleaning seed sowing device and the design method thereof can guide the design of the seed sowing device, shorten the development cycle of the seed sowing device, reduce the development cost, reduce the dust accumulation in the seed sowing device, automatically
discharge the dust of the seed sowing device, reduce the maintenance cost, improve the reliability and service life of the seed sowing device.