The hard coupling device for mine flatbed trucks is meticulously engineered to not just survive but thrive in the challenging and dynamic conditions of underground tunnels. Whether it’s navigating steep inclines, sharp declines, or tight turns, this state-of-the-art solution outperforms traditional soft couplings. It decisively eliminates vehicle collisions during multi-vehicle transport operations, effectively addressing and resolving critical issues such as front lifting, rear compression, and operational accidents that are common during ascent, descent, and turning. This advanced device ensures seamless and safe transportation, setting an unparalleled new standard for reliability and efficiency in the mining industry.