The meticulously engineered hard coupling device for mine flatbed trucks is designed to excel in the demanding and dynamic environments of underground tunnels. Whether tackling inclines, declines, or navigating sharp turns, this cutting-edge solution outperforms traditional soft couplings. By effectively preventing vehicle collisions during multi-vehicle transport operations, it addresses and resolves critical issues such as front lifting, rear compression, and operational accidents that can occur during ascent, descent, and turning. This device guarantees seamless and safe transportation, establishing a new benchmark for reliability and efficiency in the mining industry.