Automatic excrement scraper for cattle barn

The utility model discloses an automatic excrement scraper for a cattle barn, which is used for excrement cleaning in cattle barns or the sheds of other livestock in husbandry industry. The automatic excrement scraper comprises a power and main transmission mechanism, an adjustable scrapping plate, and a connecting mechanism connecting the power and main transmission mechanism and the adjustable scrapping plate. The adjustable scrapping plate mainly comprises a scrapping plate body connected with the connecting mechanism, a movable scrapping plate and lateral scrapping plates, wherein a sliding chute is formed at the front part of the scrapping plate body; the movable scrapping plate is movably connected into the sliding chute through a revolving shaft; the lateral scrapping plates are movably arranged at two ends of the scrapping plate body and certain angles are formed between the lateral scrapping plates and the scrapping plate body; the lateral scrapping plates are connected with the scrapping plate body