Piston rod of slurry pump

The utility model relates to the related technical field of slurry pumps, in particular to a slurry pump piston rod which comprises a piston rod body, a piston, a fastening screw and an anti-loosening assembly, a mounting groove is formed in the front side end face of the piston rod body, a limiting groove is formed in the edge of a groove opening of the mounting groove, and a limiting seat is integrally formed on the rear side end face of the piston. A threaded hole is formed in the limiting seat, and first-stage anti-loosening clamping teeth are arranged on the end face of the limiting seat; the mud pump piston rod formed by combining the piston rod, the piston, the fastening screw and the anti-loosening assembly is arranged, the piston rod is provided with the mounting groove, the limiting seat is arranged on the end face of the rear side of the piston, the threaded hole and the first-stage anti-loosening clamping tooth are arranged on the limiting seat, and the anti-loosening assembly is arranged to be fo