Buried door opener output shaft sealing device

The utility model discloses a buried type door opener output shaft sealing device, which relates to the technical field of buried type automatic door openers, and comprises a sealing sleeve, a first sealing ring, a second sealing ring and a third sealing ring, the sealing sleeve is sleeved on the periphery of an output shaft, and the sealing sleeve penetrates through a casing cover plate and can be fixed on the casing cover plate; the periphery of the output shaft is sleeved with the first sealing ring, the first sealing ring is sealed between the lower end of the inner ring of the sealing sleeve and the outer wall of the output shaft, the second sealing ring is sealed between the lower end face of the machine shell cover plate and the upper end face of the sealing sleeve, and the third sealing ring is sealed in a gap of the output shaft. The sealing effect of the output shaft can be improved, and effective water prevention is achieved. 本实用新型公开了一种地埋式开门机输出轴密封装置，涉及地埋式自动开门机技术领域，包括密封套、第一密封圈、第二密封圈和第三密封圈，密封套套设于输出轴的