一种通过滚筒传动的输送设备，应用于机场货运站UL打板，UL集装箱承载于滚筒上，由滚筒转动向前运动。末端设计有电动阻挡。

A conveying device driven by a roller, applied to UL boarding at an airport freight station. The UL container is carried on the roller and moves forward by the rotation of the roller. Electric blocking at the end.