Pin insulator disconnecting switch

The invention relates to a pin insulator disconnecting switch which comprises a pin insulator, wherein a bracket is arranged at the middle part; a lower fixed contact of the disconnecting switch is mounted on the bracket; a moving contact is mounted on the lower fixed contact; the lower fixed contact is rotationally connected with the lower end of the moving contact; an upper bracket is fixedly designed at the top end of the pin insulator; an upper fixed contact of the disconnecting switch is fixedly mounted on the upper bracket; the upper fixed contact is movably buckled with the upper end of the moving contact; lower connecting terminals are fixedly connected onto the lower fixed contact; an upper connecting terminal is fixedly connected with the upper fixed contact; a brake separating limiting stopper is fixedly mounted on the lower fixed contact; and an operating ring is designed on the moving contact. The pin insulator disconnecting switch has the advantages that the pin insulator is not only taken as a