The turnbuckle scaffold is a new type of scaffold, which was introduced from Europe in the 1980s. It is an upgraded product after the bowl buckle scaffold. It is also known as chrysanthemum disc scaffold system, plug-in disc scaffold system, wheel disc scaffold system, buckle disc scaffold, layer frame and Leia frame, because the basic principle of the scaffold is invented by layher company in Germany and is also called "Leia frame" by people in the industry. It is mainly used for lighting frame and background frame of large-scale concert.), The socket of this kind of scaffold is a disk with a diameter of 133mm and a thickness of 10mm. 8 holes are set on the disk φ 48 * 3.2mm, Q345A steel pipe is used as the main component. The vertical rod is welded with a disc every 0.60m on a certain length of steel pipe. This novel and beautiful disc is used to connect the cross rod with a connecting sleeve at the bottom. The cross bar is made of a plug with a pin welded on both ends of the steel pipe.