Dedicated railway container flat car

A dedicated railway container flat car comprises a bottom frame, an air brake device, a manual brake device, a container locking device, a bogie and a car coupler damping device. The container locking device is arranged on the bottom frame, the locking device adopts a full-automatic spin lock, and the bottom frame is of a full-steel welded structure borne by a fishbone type middle beam and comprises an end beam, a sleeper beam, a middle beam, a double-lock-bracket beam, a single-lock-bracket beam, a safety fence, an upper side bearing, an integrated impact seat, a side beam, a cast-steel upper center plate and an auxiliary longitudinal beam. The integrated impact seat is arranged at the cross position between the middle beam and the end beam, and the cast-steel upper center plate is arranged at the cross position between the middle beam and the sleeper beam. The dedicated flat car is reasonable in whole structure, can effectively reduces self weight, enables a car to have large bearing capacity, can be used f