Bucket elevator and material return prevention structure thereof

The utility model discloses a bucket elevator and a material return prevention structure thereof, the material return prevention structure comprises a first material receiving assembly arranged between a head box body and a belt, and the first material receiving assembly comprises a pair of first material receiving plates obliquely arranged in the head box body; the upper end of the first material receiving plate points to the belt conveying stroke and the lower end linear belt return stroke. The outer side edge, in the inclined direction, of the first material receiving plate is fixedly connected to the side wall of the head box, and the inner side edge, in the inclined direction, of the first material receiving plate is in clearance fit with the belt. The first material receiving plates are installed in the two gaps between the belt and the head box body respectively, the materials rebound on the first material receiving plates and slide to the bottom wall of the head box body or the discharging port under