Low-temperature-resistant electric actuating mechanism

The utility model belongs to the field of electric actuating, and particularly relates to a low-temperature-resistant electric actuating mechanism which comprises an electric telescopic rod and a connecting plate. The electric telescopic rod comprises a cylinder and a sliding rod, the sliding rod is slidably connected with the interior of the cylinder, the sliding rod is sleeved with a protective sleeve, two circular grooves are formed in the end, away from the cylinder, of the protective sleeve, one end of the connecting plate is fixedly connected with the cylinder, and the end, away from the cylinder, of the connecting plate is rotatably connected with a circular rod. The top end of the round rod is fixedly connected with a supporting plate; a round rod is sleeved with a protective sleeve, the protective sleeve is attached to a cylinder, then a supporting plate is rotated clockwise, an inserting rod moves to the position above a round groove, then the inserting rod is loosened, a first spring pulls a disc d