With the constant progress of science and technology, Small transport facilities were widely used in mine enterprise. based on how to improve the reliability of the transportation facilities can maximum limit problem, Hengjian Mining Industry Corporation transformed transport buffer device for integrity, unified management standards, optimized the gear arrangement, maximized stability, flexibility, practicality, improved the wrong operation and illegal operation difficulty, even if the wrong operation, remedy and insurance could be done, achieved the realization of intrinsically safe.