Water supply and drainage well lid protective net device

The utility model relates to the technical field of well lid protective nets, and discloses a water supply and drainage well lid protective net device which comprises a drainage well lid, a drainage through hole is formed in the upper surface of the drainage well lid, a light-emitting warning strip is arranged on the outer side of the upper surface of the drainage well lid, and a hinge is fixedlyconnected to the right side of the upper surface of the drainage well lid. And a trapezoidal well wall is arranged on the outer surface of the drainage well lid. According to the protective net deviceof the water supply and drainage well lid, through cooperation of the fixed blocks, the concave grooves, the movable protruding blocks and the protective net steel rings, the protective net can be firmly installed on the well wall and has high bearing capacity, safety is improved, travel safety is guaranteed, the light-emitting warning strips are powered on to emit light, and the service life ofthe light-emitting warning