Hydrodynamic coupling oil drain pressure relief bolt

Abstract

The utility model relates to pressure relief bolt technical field especially relates to hydraulic coupler oil discharge pressure relief bolt. Including: bolt body, for installing on the oil cavity pressure relief hole of coupler, exhaust hole, set up in bolt body, and the ground and the side surface close to upper end of bolt body intercommunication, self locking closing device, set up in the inside of the part of exhaust hole and bolt body side wall intercommunication, with the screwing in of bolt body and close exhaust hole, with the unscrewing of bolt body and open exhaust hole. After bolt body completely twists and turns into pressure relief hole, self locking closing device will exhaust hole mechanical lock, avoid hydraulic coupler to appear leakage phenomenon in the operation process. When bolt body is dismantled, self locking closing device opens and makes exhaust hole through, at this moment, bolt body most still twists and turns in pressure relief hole, and the bolt body is not caused by the top out of the gas leakage, and the gas that leaks from bolt body side side spouts and comes out, has realized the purpose of gradually pressure relief, and has improved the security of dismantling.

Images