Pan-button scaffold is a new type of scaffold, which was introduced from Europe in 1980s and is an upgraded product after bowl-button scaffold. Also known as chrysanthemum pallet scaffold system, pin pallet scaffold system, wheel pallet scaffold system, fastener pallet scaffold, layer scaffold (layer scaffold, Rhea scaffold), because the basic principle of this scaffold was invented by Germany's layer(Rhea) company, and people in the industry also called it "Rhea scaffold". Mainly used for lighting frames and background frames of large-scale concerts. ), buckle type multifunctional scaffold. The socket of this scaffold is a disc with a diameter of 133mm and a thickness of 10 mm. There are 8 holes in the disc, and the main components are φ48*3.2mm and Q345A steel pipes. Weld a disc on a certain length of steel pipe every 0.60 meters, and connect the crossbar with this novel and beautiful disc, with a connecting sleeve at the bottom. The crossbar is welded by plugs with pins at both ends of the steel pipe.