Waterproof top structure of wingspan compartment door

The utility model discloses a wingspan carriage door waterproof type top structure which comprises waterproof curtain cloth and two waterproof top plates, the two waterproof top plates are symmetrically laid and fixed on the tops of carriage doors on the two sides, the ends, facing the middle of a wingspan carriage, of the two waterproof top plates are respectively provided with a bent water retaining part, and each bent water retaining part comprises a vertical plate and a flat plate. The flat plate is arranged on the top of the vertical plate, the two side portions of the waterproof curtaincloth are laid on the flat plates of the two bent water blocking portions respectively, and a pressing plate is fixed to each flat plate so as to press and fix the corresponding side portions of the waterproof curtain cloth. And waterproof sealant layers are respectively coated between the upper surface of the side part of the waterproof curtain cloth and the pressing plate and between the lower surface of the side part o