Scraper is a kind of mechanical equipment used to clean livestock feces in the breeding industry. Track type V, urinary catheter type V, plate type, track type V and urinary catheter type V belong to the dry cleaning system, the class and urine are separated in the class ditch, the urine is transported to the sewage treatment system through the pipeline, the dry class is trans-ported by the scraper and the dragon to the class car, and then transported to the class pollution treatment area for treatment. The plate type belongs to the mixed system, which does not carry out the urine-like separation. The urine-like mixture is transported to the collecting pool by the scraper, and then transferred to the manure cart by the lifting wrangle-dragon. The general term of scraping system, including scraping machine, corner wheel,driving host, wire rope, travel switch, control box, etc. Livestock and poultry through the leakage of the class plate into the class ditch, scraper these classes through a class and two class channel to collect the class pool, and then through the lift of the dragon to the class truck.