Fixing device for switch in power distribution cabinet

A fixing device for a switch in a power distribution cabinet comprises a fixing frame and clamping grooves in the bottom of the switch, the clamping grooves comprise the clamping groove I and the clamping groove I, a fixing part I and a fixing part II which are clamped in the clamping groove I and the clamping groove II are arranged on the fixing frame, a protruding part and a concave part are arranged in the middle, towards the outer side of the clamping groove I, of the fixing part I and the middle, towards the outer side of the clamping groove II, of the fixing part II respectively, two limiting blocks are arranged at the two ends of the side wall of the clamping groove I respectively, inclined faces are arranged on the limiting blocks so that the fixing part II can be fixed in a space defined by the inclined faces and the bottom of the clamping groove I, the two ends of the protruding part are clamped between the limiting blocks, an installing hole is formed in the side wall of the clamping groove II, a fixing piece is arranged in the installing hole, blocking pieces are arranged on the two sides of the head of the fixing piece, and the blocking pieces are provided with right-angle notches and inclined sides. According to the fixing device, the fixing part I is clamped in the clamping groove I, the inclined sides of the fixing piece push the fixing piece to move under the pressure of the switch so that the fixing part II can be clamped in the right-angle notches of the fixing piece, and the switch can be fast installed on the fixing frame.