The hard coupling device for mine flatbed trucks is meticulously engineered to excel in the demanding and ever-changing conditions of underground tunnels. Whether it's maneuvering through inclines, declines, or sharp turns, this cutting-edge solution outperforms traditional soft couplings. By effectively eliminating vehicle collisions during multi-vehicle transport operations, it tackles and resolves critical issues such as front lifting, rear compression, and operational accidents during ascents, descents, and turns. This device guarantees smooth and safe transportation, establishing a new benchmark for reliability in the mining industry.