Safe filling oil valve is used to multiple unit valve

The utility model relates to a safe filling oil valve is used to multiple unit valve. It includes first valve barrel, be equipped with a main valve core rather than sliding connection in first valve barrel front portion, position corresponding to first annular boss rear side on first valve barrel is equipped with a radial hole, be equipped with second annular boss on the main valve core who is just corresponding with a radial hole, be equipped with first orifice along its axial on the guiding valve, front end at the pilot valve core is equipped with the second orifice along its axial, be equipped with first elastic component between main valve core and pilot valve core print seat, cup joint with second valve barrel front portion mutually at first valve barrel rear portion, be equipped with a fixing base in the second valve barrel, be equipped with the second elastic component between fixing base and guide's case, be equipped with the 2nd radial hole at second valve barrel front end, the 2nd radial hole is linked together through a horizontal channel and a radial hole who establishes on first valve barrel. The utility model discloses not only have the function of safe overflow, prevent that actuating mechanism from transshipping, still have the function of mending oil, prevent that actuating mechanism from inhaling the vacuum.