Mechanism for cleaning wall of cement barrel

The invention discloses a mechanism for cleaning the wall of a cement barrel. The mechanism comprises a connecting shaft and two scraper blades, wherein the scraper blades take the shapes of right trapezoids; the right-angled parts close to the bottoms of the scraper blades are hinged and then hinged to the side wall of the connecting shaft; the scraper blades are centrosymmetrically arranged on the connecting shaft along the axis of the connecting shaft; a guiding component is arranged between the scraper blades and comprises a moving shaft and a sleeve which are connected in sequence; the end, away from the sleeve, of the side wall of the moving shaft is connected with one of the scraper blades; the end, away from the moving shaft, of the side wall of the sleeve is connected with the other scraper blade; the other end of the moving shaft is inserted into the sleeve; the moving shaft and the sleeve are bent to be arc-shaped; and the axes of the moving shaft and the sleeve and the axisat the hinged part coinc