Rainproof and windproof isolation switch mechanism convenient for fixation

The invention provides a rainproof and windproof isolation switch mechanism convenient for fixation. A vertical rod is provided with a protection body, and an upper part of the protection body is provided with an upper cover. An upper through hole is arranged in the upper cover. The vertical rod successively penetrates through a bottom of the protection body and passes through the upper cover through the upper through hole. A horizontal through hole and an opening and closing door are arranged on a side wall of the protection body. A horizontal rod penetrates through the protection body through the horizontal through hole. An isolation switch is arranged on a bottom plate of the protection body. By using the mechanism, the isolation switch can be installed in the protection body, long-timewind blowing and rain drenching of the isolation switch are avoided, an isolation plate can be used for isolating inter-phase arc discharge, accidents are avoided, and power supply reliability is improved. And a problem that