High voltage insulator of static class air purification equipment

The utility model belongs to the technical field of the air purification technique and specifically relates to a high voltage insulator of static class air purification equipment. It includes the insulating cylinder by polytetrafluoroethylene or epoxy or ceramic grinding, insulating cylinder includes that a perisporium is for the closed end of smooth cambered surface with one make the open tip that forms after the axial extension by closed end's leeward end, it expands the board to be provided with the ring -type that two slice at least mutual axial direction along open tip are interval distribution on the open tip, two adjacent ring -types expand and are formed with a cyclic annular deep trouth between the board, the first blind hole that an axis of following open tip distributes is setedup to the opposite side that just is located closed end on the open tip. The utility model discloses a to the institutional advancement of insulating cylinder, the emergence probability of troubles such as the flashover disc