Filtering anti-blocking mechanism of bridge well lid

The utility model relates to a filtering anti-blocking mechanism of a bridge well lid. The filtering anti-blocking mechanism of the bridge well lid comprises a well lid body, an anti-blocking assembly is arranged in a filter cover and comprises a motor arranged below the filter cover, a rotating rod with one end extending into the filter cover is fixedly installed at the output end of the motor, and a mounting block is fixedly installed on the surface of the side, located in the filter cover, of the rotating rod; first mounting frames are fixedly mounted on the left side and the right side of the mounting block correspondingly, cleaning brushes are fixedly mounted at the bottoms of the first mounting frames, a lead screw is fixedly mounted on the top of the rotating rod, a threaded block is mounted on the surface of the lead screw in a threaded mode, and second mounting frames are fixedly mounted on the left side and the right side of the threaded block correspondingly. And through the arranged anti-blocking