Electric power tube with sealing structure

The utility model discloses an electric power tube with a sealing structure, which relates to the technical field of electric power tubes and comprises a first electric power tube and a second electric power tube, the inner diameter of the first electric power tube is larger than the outer diameter of the second electric power tube, and a first connecting disc is arranged on the connecting end face of the first electric power tube. A second connecting disc is arranged on the outer side, close to the connecting end face, of the second power pipe, an annular limiting block matched with the second power pipe is arranged on the inner side, close to the connecting end face, of the first power pipe, and an annular groove is formed in the position, between the limiting block and the connecting end face, of the inner side of the first power pipe. An annular groove is formed in the first connecting disc, a first sealing ring matched with the outer side of the second power pipe is connected into the annular groove, a s