Single-layer folding shed type windshield of railway vehicle

The utility model discloses a railway vehicle single-layer folding shed type windshield which comprises two butt joint frames, a folding connecting mechanism is arranged between the butt joint frames, the folding connecting mechanism comprises a plurality of annular folding pieces, vacuum cavities are formed in the folding pieces, a plurality of sliding structures are evenly distributed between the adjacent folding pieces along the circumference, and the vacuum cavities are communicated with the vacuum cavities. The folding piece can move up and down through the insertion connection of the T-shaped sliding groove and the T-shaped sliding block, so as to cope with some uneven rail conditions; a plurality of sliding reset structures are evenly distributed between the folding pieces along the periphery and comprise sleeve rods, sleeves, limiting plates and limiting grooves, when a train passes through the turning track, the folding pieces are extruded and deformed, the sleeve rods slide out of the sleeves, move