Oil gas antidetonation changeover contact ware

The utility model discloses an oil gas antidetonation changeover contact ware, belong to changeover contact ware technical field, surface at the hollow shaft, be equipped with 3 pipeline opening with the axis vertical direction of hollow shaft, be equipped with the intake pipe in hollow axial wall, advance oil pipe, go out oil pipe, be connected with 3 pipeline opening respectively, the both ends of hollow shaft are equipped with the spring holder respectively, the damping spring of shock attenuation cushioning effect has been installed in the spring holder, be equipped with the passageway along the axis direction in the hollow axial wall, soft material's sealing member and spacer ring set up in the passageway in turn, the sealing member and the spring holder contact of passageway both ends department, the centre bore of hollow shaft supports whole oil gas antidetonation changeover contact ware. The utility model discloses design the transmission of compressed air and these two kinds of power supplies of hydr