Introducing the revolutionary hard coupling device for mine flatbed trucks, meticulously crafted to perform in the rigorous and ever-changing environments of underground tunnels. Whether you are maneuvering through steep inclines, declines, or navigating sharp turns, this state-of-the-art solution surpasses the capabilities of conventional soft couplings. It proficiently prevents vehicle collisions during multi-vehicle transport operations, effectively addressing and resolving critical issues like front lifting, rear compression, and operational mishaps that typically occur during ascents, descents, and turns. With this device, seamless and secure transportation is not just a promise but a reality, setting an unprecedented benchmark for reliability in the mining industry.