Coil steel tray suitable for railway open wagon

The utility model relates to the technical field of railway transportation, in particular to a coil steel tray suitable for a railway open wagon. In the process that the coil steel tray falls into the railway open wagon from top to bottom, the clamping tongue is firstly pushed by a side wall cross beam of the railway open wagon to rotate upwards from the natural position to the first receding position, so that the clamping and blocking assembly can cross the side wall cross beam, and when the clamping and blocking assembly crosses the side wall cross beam, the clamping tongue is reset to the natural position from the first receding position; in the process that the coil steel tray is moved out of the railway open wagon from bottom to top, the clamping tongue is firstly pushed by the side wall cross beam to rotate downwards from the natural position to the second receding position so that the clamping and blocking assembly can cross the side wall cross beam, and when the clamping and blocking assembly crosses