The hard coupling device for mine flatbed trucks is meticulously engineered to excel in the demanding and ever-changing conditions of underground tunnels. With superior performance on inclines, declines, and sharp turns, this revolutionary solution surpasses traditional soft couplings, offering unmatched reliability and efficiency. It meticulously eradicates vehicle collisions during multi-vehicle transport operations, effectively addressing critical issues such as front lifting, rear compression, and operational accidents that commonly occur during ascent, descent, and turning. This device not only ensures seamless and safe transportation but also sets a new benchmark for reliability and operational excellence in the mining industry.