Reverse rake type bar screen machine

The utility model relates to a reverse rake type bar screen machine which comprises a machine frame, a driving wheel shaft and a driven wheel shaft are installed on the machine frame, a driving wheel is installed on the driving wheel shaft, a driven wheel is installed on the driven wheel shaft and at the position opposite to the driving wheel shaft, a chain is sleeved outside the driving wheel and the driven wheel, and the chain is connected with the driving wheel and the driven wheel. At least one scraper assembly is mounted on the chain, and a sieve plate is mounted at the lower part of the rack; the driving wheel shaft is further connected with a power device, and the power device rotates to drive the scraper assembly to move in the water entering direction so that solid residues intercepted on the sieve plate can be scraped away from bottom to top in the reverse direction. The slag blocking device is high in slag blocking efficiency, large in water passing area, reasonable in equipment structure, safe and