The hard coupling device for mine flatbed trucks is masterfully engineered to conquer the challenging and dynamic conditions of underground tunnels. Whether navigating steep inclines, sharp declines, or tight turns, this revolutionary solution excels where traditional soft couplings falter. It effectively eliminates vehicle collisions during multi-vehicle transport operations, adeptly addressing and resolving critical issues such as front lifting, rear compression, and operational accidents that can occur during ascent, descent, and turning. This state-of-the-art device ensures seamless and safe transportation, establishing a new benchmark for reliability in the mining industry.