Protective cover for isolating switch of steel strut

The utility model discloses a protective cover for a steel strut isolating switch, which comprises a frame, the side surface of which is connected with a revolving door; first supports are fixedly connected to the interior of the frame, a second support is connected between the first supports, a threaded groove is formed in the surface of the second support, the threaded groove is in threaded fit with a threaded rod, and the threaded rod is rotationally connected with a sliding plate. The sliding plate is connected with the clamping plate through a clamping mechanism, and a groove matched with the surface of the steel supporting column is formed in the inner side of the clamping plate, so that the fastening strength is improved. The anti-rotation bases at the top and the bottom of the isolating switch of the protective cover for the steel strut isolating switch are supported and reinforced through angle steel, the upper base and the lower base are connected into a whole, and the stability, the safety and the