Single track hangs extension ladder device

The utility model belongs to the coal mine equipment field especially discloses a single track hangs extension ladder device. The utility model discloses a technical scheme do: a single track hangs extension ladder device, includes support, telescoping device and ladder, the support includes horizon bar and the portal trestle of fixing with the horizon bar, the telescoping device upper end is fixed with the support, and lower extreme and ladder fixed connection drive the ladder and slide from top to bottom along door type support. The utility model has the characteristics of be convenient foroperating personnel from top to bottom and convenient to use. 本实用新型属于煤矿设备领域，尤其是公开了种单轨吊伸缩梯装置。本实用新型采用的技术方案为：种单轨吊伸缩梯装置，包括支架、伸缩装置和梯子；所述支架包括水平杆和与水平杆固定的门形支架；所述伸缩装置上端与支架固定，下端与梯子固定连接，带动梯子沿门型支架上下滑动。本实用新型具有便于操作人员上下且使用方便的特点。