Folding insulation device

The invention relates to the technical field of power construction equipment, in particular to a folding insulation device. The invention provides a folding insulation device which comprises a main insulation plate, a left insulation plate and a right insulation plate, the left insulation plate is rotationally connected with the main insulation plate, the right insulation plate is rotationally connected with the main insulation plate, and the left insulation plate and the right insulation plate can rotate to be flush with the main insulation plate in an unfolded state or a folded state. In the detection and maintenance operation process, by unfolding the left insulating plate and the right insulating plate, an operation area isolated from an electrified body can be provided for workers, personal injury caused by accidental touch of the electrified body is avoided, and the risk of electric shock is reduced. By folding the left insulating plate and the right insulating plate, the size of the foldable insulating