Novel piston rod sealing assembly

The utility model discloses a novel piston rod sealing assembly. The piston comprises a piston cylinder body, a mounting base is arranged at the top of the piston cylinder body, a piston rod is arranged at the center of the top of the mounting base, the bottom end of the piston rod extends into the piston cylinder body, a sealing ring body is arranged at the center of the top of the mounting base,and a sealing ring groove is formed in the non-circle-center position of the bottom of the sealing ring body. According to the utility model, the piston rod, the internal thread cover, the piston cylinder body, the fitting ring, the shielding ring, the sealing ring body, the sealing ring, the extrusion ring and the sealing ring groove are matched for use; the mutual clinging of the shielding ringand the extrusion ring can be realized; the joint of the internal thread cover and the mounting base is subjected to first-step sealing, then the sealing performance between the sealing ring body andthe mounting base is impro