Radiographic detection device for pipeline

The invention relates to the technical field of ray detection equipment, and provides ray detection equipment which comprises a rail assembly arranged on a to-be-detected pipeline, a bottom frame arranged on the rail assembly in a sliding mode, an imaging assembly arranged on the bottom frame, a driving mechanism and a plurality of transmission assemblies arranged on the bottom frame at intervals. The transmission assembly comprises a transmission shaft arranged on the bottom frame, one end of the transmission shaft is connected with the output end of the driving mechanism, a driven chain wheel is rotationally arranged on the transmission shaft, a connecting fluted disc is arranged at one end of the driven chain wheel, a boss is arranged at one end of the connecting fluted disc, and a connecting tooth groove is slidably formed in the end, close to the connecting fluted disc, of the transmission shaft and provided with a through hole. The boss is slidably arranged in the through hole, and the two ends of the f