Oil inlet device

The utility model discloses an oil inlet device, including screw thread push rod, transmission ring sum locking ring set up on the locking ring and screw up the piece, set up the lacing wire at locking ring and transmission interannular set up the rotating member on the screw thread push rod, screw thread push rod and transmission interannular adopt threaded connection, set up the oil resistant rubber stopper at the screw thread push rod between oil pipe with advancing, and screw thread push rod and oil resistant rubber stopper are provided with the centre bore. The utility model has the advantages that: the cone that be based on oil resistant rubber stopper both ends matcing with the pipeline hole and middle structure for the sealing washer that matches with the pipeline, the anticlockwise rotation handle makes the screw thread push rod be close to to advancing oil pipe, with the oil resistant rubber stopper into oil pipe that impresses, makes the oil resistant rubber stopper and advances oil pipe and say that inner wall and end face seal cooperate to realize sealed effect. The utility model discloses an each part raw materials is simple, it is simple to make, and the part is small in quantity, therefore its simple structure, installs and removes convenience, with low costs.