Track board buckling and limiting device in railway ballastless track

The utility model discloses a track board buckling and limiting device in a railway ballastless track. The track board buckling and limiting device comprises a track board on a base board, and is characterized in that an upper pressing board located on the upper end face of the track board and a lower pressing board on the upper end face of the base board are included, a pull rod connected with the upper pressing board and the lower pressing board is further included, the upper end of the pull rod penetrates through the upper pressing board and is fastened on the upper pressing board through a nut, and the lower end of the pull rod penetrates through the lower pressing board and is anchored in the base board. Through the upper pressing board, the lower pressing board, the pull rod and other structures, the synergistic effect between the track board and the base board is guaranteed, an original reinforcement and reconstruction mode is changed by the use of the buckling and limiting device, the limiting device is arranged outside the structure, the track structure is not damaged, stress is clear, and the components can be mounted, inspected and replaced conveniently. After the arch disease of the ballastless track structure is restored, the limiting device can be dismounted, and the original state of the ballastless track structure is restored. The safety smoothness of a high-speed railway and transverse line stability are guaranteed.