1简介目前国内集装箱一般都用于铁路、公路、港口等地，由于集装箱很重，达24t、30t左右，各装卸地点均采用大型钢丝绳起吊机械或专用集装箱起吊车进行装卸。上述机械体积庞大，造价高昂，而且仅在一定范围内工作，不能随集装箱运输装卸来携带，因而造成集装箱运输拖车到达某地 1 Introduction Domestic containers are generally used for railways, highways, ports and other places. Due to heavy containers, about 24t and 30t, all loading and unloading locations adopt large wire rope lifting machines or special container cranes for loading and unloading. These machines are bulky, expensive, and work only within a certain range and can not be carried along with the container’s handling, resulting in a container trailer reaching somewhere