Cylindrical insulating part

The utility model discloses a cylindrical insulating part, which comprises a device body, the device body comprises a bottom mounting base, a top sealing footstock and an insulating protective cylinder, the bottom mounting base is mounted at the bottom of the insulating protective cylinder, and the top sealing footstock is mounted at the top of the insulating protective cylinder; the outer side of the bottom mounting base and the outer side of the top sealing top seat are each provided with two sets of fixing feet which are annularly distributed at equal intervals, the fixing feet are of a triangular structure, fixing holes are formed in the tops of the fixing feet, the top of the bottom mounting base and the bottom of the top sealing top seat are each provided with a connecting threaded cylinder, and external threads are arranged on the surfaces of the connecting threaded cylinders; the bottom of the bottom mounting base is provided with a mounting opening, and the top and the bottom of the bottom mounting b