Well lid structure with high sealing performance

The utility model discloses a well lid structure with high sealing performance, which comprises a well body, a well lid body is arranged in the well body, the well lid body is connected with the well body, an installation bump is arranged on the outer side of the well lid body, and the installation bump is connected with the well lid body. According to the well lid structure with the high sealing performance, a telescopic rod and a water level detection rod are arranged, scale marks are arranged on the surface of the water level detection rod, the telescopic rod drives the water level detection rod to ascend and descend, the telescopic rod is installed on the inner side of an installation ring through a spring installation button, and a worker descends the water level detection rod to the alarm water level through the telescopic rod; when the well lid body is closed, once the water level in the well body exceeds the water level detected by the water level detection rod, an alarm signal transmits information t