Universal simple fastening plate structure for dust collection bags

The utility model relates to a universal simple fastening plate structure for dust collection bags. The universal simple fastening plate structure comprises a plastic member serving as a plate body, and is characterized in that at least one orifice sealing ring is covered on the plastic member, the plastic member is provided with three positioning stems, a metal mounting piece is fixed on the plastic member by the positioning stems, and a side-leak preventive sealing ring is arranged above the metal mounting piece. Tightness between the fastening plate and a dust collector accessory is guaranteed by the aid of the sealing rings, and the universal simple fastening plate can be firmly connected and fixed with a conventional fastening plate by the aid of the metal mounting piece.