Switch cabinet with multi-stage protection

The utility model discloses a switch cabinet with multistage protection, which comprises a base, a box body is fixedly mounted on the upper surface of the base, the top of the box body is communicated with a pipe body, a limiting ring is fixedly mounted in the box body, an annular groove is formed in the upper surface of the limiting ring, and a positioning ring is arranged in the annular groove. A vertical pipe is fixedly installed on the inner top wall of the box body, a lead screw is inserted into one side of the vertical pipe, the end, located in the vertical pipe, of the lead screw is rotationally connected with a sliding plate through a bearing, an anti-sliding block is fixedly installed on one side of the sliding plate, and the top of the vertical pipe communicates with the bottom of the pipe body. According to the switch cabinet with multi-stage protection, the screw rod is loosened, then the screw rod is separated from the limiting ring and the positioning ring, and then the screen plate can be disas