The utility model relates to the technical field of anti -
icing outdoor bolt, specifically relates to a kind of anti -
icing outdoor bolt, comprising: fire hydrant mechanism, the fire hydrant mechanism is equipped with anti -
icing mechanism, the lower of fire hydrant mechanism is equipped with sealing mechanism;The fire hydrant mechanism includes fire hydrant shell, the upper end of fire hydrant shell is fixed with sealing top cover, and fire hydrant shell is fixed with fire hydrant inner shell inside.This utility model can remove the plugging of water outlet hole by sealing sleeve moving with heat preservation cover, make residual water in fire hydrant inner shell
discharge quickly through water outlet hole, reduce the possibility of icing from source, the cooperation of sealing ring and movable rod can also quickly plug water outlet hole when using, ensure normal water outlet function, and the outer surface of the connecting shell of sealing mechanism is embedded with heating ring, can continuously heat the connecting place with
underground pipeline, avoid the connecting part icing rigid under low temperature, ensure that device can still be normally opened and operated in severe cold environment, guarantee emergency use demand.