Roller brush for decoration

The roller brush for decoration comprises a brush rod and a coating barrel, the top of an inner cavity of the brush rod is fixedly connected with a sliding groove plate, a sliding block is installed in the sliding groove plate in a sliding mode, a liquid guide frame is fixedly installed at the bottom of the sliding block, one end of the liquid guide frame penetrates through the brush rod and extends to the outside of the brush rod, and the other end of the liquid guide frame is fixedly connected with the coating barrel. L-shaped rods are fixedly connected to the upper portion and the lower portion of the surface of the liquid guide frame and located outside the brush rod through connecting blocks. According to the roller brush for decoration, a handle is pulled out from the inner side of a movable opening and drives a push rod, so that a liquid guide frame moves forwards under the action of a sliding groove plate and a sliding block, the painting distance of a painting roller is lengthened, and therefore the