Protective plate structure of excavator bucket

The utility model relates to the related technical field of excavator buckets, and provides a protective plate structure of an excavator bucket, which comprises a bucket main body, a protective plate assembly capable of automatically removing adhered materials is mounted in the bucket main body, the protective plate assembly comprises a protective plate, and one side, close to an opening of the bucket main body, of the protective plate is hinged to the inner wall of the bucket main body; the protection plate assembly further comprises a limiting shaft rod, one end of the limiting shaft rod is fixedly connected with the inner wall of the bucket body, the side face of the protection plate is connected with the limiting shaft rod in an inserted mode through a hole, and a limiting block is integrally arranged at the end, away from the inner wall of the bucket body, of the limiting shaft rod. The deflection range of the protection plate is limited by the limiting shaft rod. Through cooperative use of all the devic