Introducing the hard coupling device for mine flatbed trucks, a masterpiece engineered to excel in the challenging and dynamic conditions of underground tunnels. Whether you're navigating steep inclines, sharp declines, or intricate turns, this groundbreaking solution outperforms traditional soft couplings. It eradicates vehicle collisions during multi-vehicle transport operations and addresses crucial issues such as front lifting, rear compression, and operational accidents during ascent, descent, and turning. This revolutionary device guarantees seamless and safe transportation, establishing an unparalleled standard of reliability in the mining industry.