Engineered to withstand the rigorous and ever-changing environment of underground tunnels, the hard coupling device for mine flatbed trucks is a game-changer. It navigates inclines, declines, and sharp turns with ease, outshining traditional soft couplings. This groundbreaking solution eliminates vehicle collisions during multi-vehicle transport operations, effectively addressing and resolving critical issues such as front lifting, rear compression, and operational accidents that commonly occur during ascent, descent, and turning. With this device, seamless and safe transportation is guaranteed, establishing a new benchmark for reliability and safety in the mining industry.