Dirt monitoring drainage ring as well as drainage ring ground potential installation device and installation method

The invention discloses a dirt monitoring drainage ring as well as a drainage ring ground potential installation device and installation method. The drainage ring ground potential installation device comprises a gear frame, a gear shaft A, a gear shaft B, a drainage ring fixing rod, a small bevel gear and a large bevel gear, wherein the small bevel gear and the large bevel gear are arranged in the gear frame, and the large bevel gear and the small bevel gear are meshed with each other to complete right-angle transmission; one end of the gear shaft A is fixedly connected with the small bevel gear, and the other end of the gear shaft A penetrates through the gear frame and is connected with one end of a universal joint shaft through a universal joint; one end of the gear shaft B is fixedly connected with the large bevel gear, and the other end of the gear shaft B penetrates through the gear frame and is fixedly connected with a concentric-square-shaped clamping block; the drainage ring fixing rod is arranged ou