The hard coupling device for mine flatbed trucks is meticulously engineered to excel in the most challenging and dynamic conditions of underground tunnels. Designed to navigate inclines, declines, and sharp turns with unparalleled efficiency, this innovative solution outperforms traditional soft couplings in every aspect. By effectively eliminating 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 state-of-the-art device ensures seamless and safe transportation, setting a new benchmark for reliability and operational excellence in the mining industry.