Fixing device of vacuum circuit breaker

The utility model discloses a fixing device of a vacuum circuit breaker, which comprises a fixing table and a vacuum circuit breaker body, a positioning assembly is arranged in the fixing table, a fixing mechanism is arranged at the bottom of the fixing table, the fixing mechanism comprises a fixing box arranged at the bottom of the fixing table, the inner wall of the fixing box is fixedly connected with a fixing cylinder, and the fixing cylinder is fixedly connected with the positioning assembly. One side of the fixed cylinder is in sliding connection with a sliding toothed bar, the surface of the sliding toothed bar is in sliding connection with a limiting block, one side of the limiting block is fixedly connected with the inner wall of the fixed box, and one side of the sliding toothed bar enables the fixed plate to slide through a linkage assembly. According to the fixing device of the vacuum circuit breaker, under the driving of the fixing air cylinder, the vacuum circuit breaker body is fixed and instal