Oil supply device of Roots blower

The oil supply device of the Roots blower comprises a clamping seat, an oil supply unit, a piston unit and a pressure intensity unit, the oil supply unit is arranged on the clamping seat, the piston unit is arranged on the oil supply unit, the pressure intensity unit is arranged on the piston unit, and the oil supply unit comprises an oil inlet pipe, a connecting plate, an oil tank, an oil filling pipe and an air suction pipe. The utility model relates to the technical field of Roots blowers, in particular to an oil supply device of a Roots blower, which effectively solves the problems that an oil tank of an oil supply device of a traditional Roots blower can not be detached, and the internal pressure of the oil tank is not easy to keep consistent with the outside. In addition, the oil tank is communicated with the water tank, when the pressure in the oil tank is reduced, the water tank can filter air from water to enter the water tank, and the purpose that the pressure in the oil tank is balanced is achieved