Pillar anti-collision device

The utility model relates to an abutment anti-collision device. The abutment anti-collision device comprises a main energy consumption structure, a main energy consumption structure and an auxiliary energy consumption structure, wherein the main energy consumption structure comprises a steel jacket box capable of surrounding the periphery of an abutment and an isolation assembly arranged on the outer wall face of the inner side of the steel jacket box; the auxiliary energy dissipation structure comprises a flexible bag body surrounding the periphery of the steel jacket box, energy dissipation particles filled in an inner cavity of the flexible bag body, and a diffusion block tightly attached to the surface, back on to the steel jacket box, in the flexible bag body; and the locking device is used for fixing the steel jacket box on the abutment. According to the abutment anti-collision device, the auxiliary energy dissipation structure is used for coping with small-tonnage ship collision, and the auxiliary ener