Rubber-coated roller with locking structure

The utility model discloses a rubber coating roller with a locking structure, which comprises a roller body, a fixing ring is fixedly mounted on one side of the roller body, extension plates are fixedly mounted at two ends of the fixing ring, a vertical rod is fixedly mounted at the top of each extension plate, a sliding chute is formed in one side of each vertical rod, a round rod is fixedly mounted in each sliding chute, and a locking structure is arranged on the round rod. The surface of the round rod is movably sleeved with a sliding block, a transverse rod is fixedly installed at the top of the vertical rod, and a strip-shaped groove is formed in the top of the transverse rod. According to the rubber-coated roller with the locking structure, in the daily use process, an operator starts a motor, the motor runs to enable a lead screw to rotate, due to the limiting effect of a round rod and a sliding block, a sliding sleeve is driven to slide in a strip-shaped groove at the moment, and then the sliding bloc