The hard coupling device for mine flatbed trucks is meticulously engineered to flourish in the demanding and ever-changing conditions of underground tunnels. Whether it’s tackling inclines, declines, or sharp turns, this groundbreaking solution shines where conventional soft couplings falter. It dramatically reduces the risk of vehicle collisions during multi-vehicle transport operations, effectively addressing and resolving pivotal issues such as front lifting, rear compression, and operational mishaps during ascent, descent, and maneuvering. This device not only ensures seamless and safe transportation but also sets a new benchmark for reliability and safety in the mining industry, making it an indispensable asset for enhancing operational efficiency and safeguarding workers.