Flap sliding rail cover plate connecting structure

The utility model belongs to the technical field of aircraft trailing edge flaps, and particularly relates to a flap sliding rail cover plate connecting structure which comprises a sliding rail cover plate, a flap sliding rail and a wing trailing edge supporting structure. The flap slide rail part exceeds the rear edge of the wing; the wing trailing edge supporting structure is located above the flap sliding rail, the front end of the wing trailing edge supporting structure is fixed to the wing trailing edge, and a box-shaped cavity with a backward opening is formed in the rear end of the wing trailing edge supporting structure; the sliding rail cover plate is fixed to the upper surface of the flap sliding rail, the front end of the sliding rail cover plate is inserted into the box-shaped cavity, the spanwise and heading freedom degrees of the sliding rail cover plate connecting structure are effectively released, additional stress on the sliding rail cover plate can be remarkably reduced, and the structural