Small high-voltage isolation switch

The utility model relates to a miniature high-voltage isolating switch, which comprises a mounting base, a rotating shaft, a connecting pin shaft, an insulating crank arm, an electric control element,an insulating upright post, a busbar plate, a moving contact knife and a static contact piece, the rotating shaft is arranged in the middle of the mounting base; the connecting shaft pin is arrangedon the rotating shaft and is positioned on the outer side of the mounting base; the insulating crank arm is fixedly connected with the connecting pin shaft; the electric control element is arranged onthe mounting base, and is positioned at one end far away from the insulating crank arm; wherein the insulating upright post is fixedly arranged on the mounting base; the busbar plate is arranged on the top end face of the insulating stand column. The moving contact knife is fixedly connected with the busbar plate; and the bottom of the static contact piece is fixedly connected with the busbar plate. The high-voltage isolat