Grille cleaner

The utility model discloses a bar screen machine, which belongs to the field of screen machines, and comprises a bar screen machine body, an arranged anti-blocking mechanism is matched with the bar screen machine body for use, when the bar screen machine body fished pollutants and falls into a deslagging shell, a driving motor drives an output end to drive a large belt wheel to rotate, and the large belt wheel is driven to rotate. A large belt wheel drives a small belt wheel to rotate through a tensioning belt, the small belt wheel drives a second smashing roller to rotate through a rotating rod, a second gear drives a first gear to synchronously and relatively rotate in the rotating process of the rotating rod, and the first gear drives a first smashing roller to rotate through the rotating rod; the first smashing roller and the second smashing roller rotate relatively in the slag discharging shell, pollutants falling into the slag discharging shell are smashed through the smashing blades which are arranged