Inverted fast door

The utility model relates to the technical field of inverted roller shutter doors, in particular to an inverted quick door, which comprises an outer frame fixed on a wall, a bearing seat mounted at the bottom end of the outer frame, an electromagnet and a driving motor. According to the inverted quick door, the inverted inserting type design is adopted, the lateral elastic sealing covers controlled by the electromagnets are elastically assembled on the two sides of the PVC curtain cloth and located in the lateral guide rails, the inverted quick door is automatically unfolded in the stop state through the magnetic control design, and the outer side openings of the lateral guide rails are closed by matching with the necking sealing frames; therefore, the sealing performance of the two sides of the whole inverted door is greatly improved; the lateral overturning extrusion plate of an L-shaped structure is inserted into the lateral edge covering sleeve to be connected with the lateral cover cloth, so that assembl