The robust hard coupling device for mine flatbed trucks is masterfully designed to excel in the demanding and ever-changing environments of underground tunnels. Whether maneuvering through inclines, declines, or tight corners, this cutting-edge solution outperforms conventional soft couplings. It effectively eradicates vehicle collisions during multi-vehicle transport operations, tackling and resolving pivotal issues such as front lifting, rear compression, and operational accidents that often arise during ascent, descent, and turning. This device guarantees flawless and secure transportation, establishing a new benchmark for reliability and safety in the mining industry.