Closed type ring lock scaffold cross rod and galvanized hanging tool

The utility model relates to the technical field of scaffolds, in particular to a closed type ring lock scaffold cross rod and a galvanized hanging tool. The product structure is more reasonable, the internal erosion speed is slowed down, raw material consumption in the galvanization process is effectively reduced, labor is saved, and the galvanization efficiency is improved. Comprising a cross bar body which is a hollow metal tube; the two lock heads are symmetrically arranged at the two ends of the cross rod body, each lock head comprises a connecting body and a straight lock plate arranged on the connecting body, and a pin hole is formed in each straight lock plate; ports at two ends of the cross rod body are closed and blocked by the connecting bodies through welding; a conical inclined part is arranged on the connecting body; the tip end of the conical inclined part is far away from the cross rod body; the conical inclined part is of a solid integrated structure; a columnar socket part is arranged on the