Introducing our cutting-edge hard coupling device for mine flatbed trucks, specifically designed to excel in the rigorous and ever-changing environments of underground tunnels. In the face of steep inclines, sharp declines, and tight turns, this groundbreaking solution surpasses the limitations of traditional soft couplings. It proficiently eliminates the risk of vehicle collisions during multi-vehicle transport operations, effectively addressing and mitigating critical challenges such as front lifting, rear compression, and operational accidents that frequently arise during ascension, descension, and turning maneuvers. Our device guarantees smooth and secure transportation, establishing a new benchmark for dependability and safety in the mining sector.