Helical finned tube energy saver

The utility model relates to the technical field of spiral finned tubes, and discloses a spiral finned tube energy saver which comprises a box body, an installation mechanism is arranged in the box body and comprises a spiral fin, positioning rods are fixedly connected to the bottom and the top of the spiral fin, an installation groove is formed in the surface of the positioning rod at the bottom, and the spiral fin is arranged in the installation groove. A positioning groove is formed in the surface of the box body, a sliding hole is formed in the surface of the positioning groove, a sliding rod is slidably connected into the sliding hole, a sliding groove is formed in the surface of the sliding rod, a first spring is fixedly connected to the surface of the sliding groove, and a sliding block is fixedly connected to the surface of the first spring. And an embedding groove for embedding the sliding block is formed in the surface of the mounting groove. According to the spiral finned tube energy saver, through