Transformer respirator replacing device

A transformer respirator replacing device comprises a main shaft, a fixing assembly transversely and rotationally arranged at the top end of the main shaft, and an overturning assembly longitudinallyand rotationally arranged at the bottom end of the main shaft. The overturning assembly comprises a longitudinal connecting plate, which is transversely provided with a transverse shaft; a second cantilever transversely extending from the top end of the longitudinal connecting plate, a second arc-shaped clamping groove being formed in the end, away from the top end of the longitudinal connecting plate, of the second cantilever, a second rotating hole and a second pivot hole being longitudinally formed in the left side and the right side of the second arc-shaped clamping groove respectively, and a second hollowed-out groove being transversely formed in the second cantilever; a second buckling piece, comprising a second main body, a second convex lug which is formed by extending from the right side of the second mai