Anti-blocking combined grid plate

The utility model discloses an anti-blocking combined grate plate which comprises a driving motor, a main belt pulley, a follow-up belt, a reduction gearbox body, a gear screw rod, a needle bearing, a carrier gear, a stable base, a fixed main pin, a supporting edge foot, a filtering grate plate, a rotating gear ring, a sweeping scraper, a main pin sleeve and a grate plate bearing. One end of the driving motor is fixedly connected with the middle of the main belt wheel, the follow-up belt is rotationally connected with the main belt wheel, the gear screw is rotationally connected with the reduction gearbox body through the needle bearing, and the driving motor sequentially drives the main belt wheel, the follow-up belt and the gear screw to rotate so as to drive the carrier gear and the rotating gear ring to rotate. And finally, the sweeping scraping plate is driven to do circular motion around the fixing main pin, then the upper surface of the filtering grid plate is swept and cleaned, the filtering grid plat