Wear-resistant hydraulic oil cylinder

The utility model relates to the technical field of hydraulic oil cylinders, and discloses a wear-resistant hydraulic oil cylinder which comprises a hydraulic oil cylinder body, a sliding groove is formed in the middle of the right side of the hydraulic oil cylinder body, a piston is slidably connected to the left side in the sliding groove in a sleeved mode, and a sealing base is in threaded connection with the right side in the sliding groove. A piston rod is movably inserted in the center of the sealing seat, and the left side of the piston rod is fixedly connected to the center of the right side of the piston. Mixed substances of dust and oil attached to the outer wall of the piston rod can be scraped off and flow into the containing sleeve through the gathering groove, dismounting andcleaning are convenient, external impurities are prevented from entering the hydraulic oil cylinder to cause intense abrasion, and therefore the service life of the hydraulic oil cylinder is prolonged. A user can filter out