Insulating sleeve device for overhead line

The utility model discloses an overhead line insulating sleeve device. The overhead line insulating sleeve device comprises a sleeve; the pipe sleeve comprises an insulating layer, a first connecting edge is arranged on one side of the insulating layer, a second connecting edge is arranged on the other side of the insulating layer, the first connecting edge and the second connecting edge are close to each other and enable the insulating layer to form a cylindrical structure, a bottom plate is fixedly connected along the first connecting edge, a supporting plate is fixedly connected along the second connecting edge, and the cross section of the supporting plate is in a C shape. A containing groove with an opening facing the bottom plate is formed in the supporting plate, the supporting plate is fixedly connected with a first clamping edge and a second clamping edge, a clamping groove is formed between the first clamping edge and the second clamping edge, a connecting protruding strip is fixedly connected along