The hard coupling device for mine flatbed trucks is masterfully engineered to excel in the demanding and ever-changing conditions of underground tunnels. This advanced solution outperforms traditional soft couplings, effortlessly handling inclines, declines, and sharp turns with unmatched precision. It eradicates the risk of vehicle collisions during multi-vehicle transport operations, effectively addressing and resolving critical issues such as front lifting, rear compression, and operational accidents commonly encountered during ascent, descent, and turning maneuvers. This state-of-the-art device guarantees seamless and safe transportation, establishing a new benchmark for reliability and performance in the mining industry.