Sealing mechanism of hydraulic pump

The utility model discloses a sealing mechanism of a hydraulic pump, which relates to the technical field of hydraulic pumps and comprises a sealing mechanism main body of the hydraulic pump, the sealing mechanism main body of the hydraulic pump comprises a hydraulic pump body and a rotating shaft, a pump body inner sealing structure is arranged inside the hydraulic pump body, and a rotating shaft sealing structure is arranged outside the rotating shaft. The pump body inner sealing structure comprises a lining unit and a pump body sealing unit, the lining unit is arranged on the inner side surface of the hydraulic pump body, and the pump body sealing unit is arranged outside the lining unit. The inner sealing ring is clamped and installed through the inner installation groove in the rotating shaft, the outer surface of the inner sealing ring makes contact with the inner surface of the end cover of the hydraulic pump body to seal the end cover of the hydraulic pump body, and the annular pipe sealing protruding