Coupling-free multi-sealing special threaded sleeve

The utility model relates to the technical field of threaded sleeves, and discloses a coupling-free multi-sealing special threaded sleeve which comprises a connecting pipe, a connecting ring is fixedly connected to the outer surface of the connecting pipe, a sealing layer is fixedly connected to the right side of the connecting ring, threads are formed in the outer surface of the connecting pipe, and the connecting pipe is fixedly connected with the connecting ring. The outer portion of the connecting pipe is in threaded connection with a threaded sleeve, the threaded sleeve is internally provided with a threaded groove, the threaded groove is also in a semicircular shape, the movable plate is blocked by the inner wall of the groove through the bottom of the movable plate, and then the movable plate stops reverse rotation of the connecting block. And therefore, the tightness of threaded connection of the threaded sleeve and the connecting pipe is effectively guaranteed, the situation that in the long-term use