Steel structure hoisting device

The utility model discloses a steel structure hoisting device which comprises a telescopic arm, the telescopic arm is fixedly installed on a rotating disc, the lower end of the rotating disc is connected to a sliding rail in a sliding mode, the sliding rail is arranged on a supporting platen, and the supporting platen comprises a first platen body and a third platen body. The first table plate and the third table plate are both connected into a sliding way in a sliding mode, and the sliding way is arranged on the lower side of the second table plate. The device is simple in structure, high in safety performance, economical and practical. 本实用新型公开了一种钢结构起重吊装装置，包括伸缩臂，所述伸缩臂固定安装在转动盘上，所述转动盘下端滑动连接在滑轨上，所述滑轨设置在支撑台板上，所述支撑台板包括第一台板和第三台板，所述第一台板和第三台板均滑动连接在滑道内，所述滑道设置在第二台板下侧。本实用新型结构简单，安全性能高，且经济实用。