Alternative polish rod maintenance device

The utility model discloses a replacement type polish rod maintenance device. When the rough surface needs to be replaced or the maintenance liquid agent needs to be replaced; two standby box bodies replace two original box body maintenance polish rods and comprise clamps fixedly connected with the outer edge of a packing box, two original box bodies with semicircular cross sections symmetricallyarranged on the upper portions of the clamps, an original box body I and an original box body II, positioning plates with fixed positions are arranged on the upper portions of the clamps, and movablerods are arranged on the upper portions of the positioning plates. Wherein one side of one movable rod is fixedly provided with the original box body I, the other side of the movable rod is fixedly provided with the alternative box body I, one side of the other movable rod is provided with the original box body II, and the other side of the movable rod is fixedly provided with the alternative boxbody II; the original box b