Dedicated drilling protector of neurosurgery

The utility model discloses a dedicated drilling protector of neurosurgery, including transparent drilling safety cover, transparent bellows, watering device and negative pressure discharge pipe, the drilling safety cover appears for the radius frustum, and its tip is equipped with elastic ring, a port in the drilling safety cover lower part and the drilling safety cover intercommunication of negative pressure discharge pipe, transparent bellows is the loudspeaker form, and its both ends mouth department all sets up elastic ring, and elastic ring detachably and drilling safety cover main aspects sealing connection are passed through to its main aspects, and the tip is then through elastic ring and drill bit detachably sealing connection, watering device includes water injection pipe and transparent cyclic annular water distributor, cyclic annular water distributor is located the junction of drilling safety cover and bellows, and this ring -type water distributor is equipped with and moves towards decurrent se