Radioactive contamination protection structure

The utility model discloses a radioactive contamination protection structure, and relates to the technical field of medical auxiliary instruments, the radioactive contamination protection structure comprises a protection cap body and a fixing ring, the other end of a second connecting rod is connected with a shoulder rest assembly, and a fixing assembly is arranged on the outer side of the shoulder rest assembly. The structure has the effect of flexibly adjusting the vertical distance between the protective cap body and the shoulder rest assembly, the flexibility of the protective structure in the using process is improved, the attaching effect of the shoulder rest assembly and the shoulder of a medical worker is guaranteed, the positioning assembly can lock and limit a piston block, and the safety of the medical worker is improved. The stability of a second connecting rod in the using process of the structure is improved, a limiting rod is arranged, the situation that the using effect of the shoulder rest as