| 摘要 |
PURPOSE:To make it easy to position a flange in the axial direction thereof to a cylindrical body by projecting the cylindrical body from the end face of the flange for sealing it, providing a projected end face with an engaging part and engaging a lock ring in the engaging part to rotate the ring. CONSTITUTION:A sealing device is equipped with an O-ring 5 between the inner peripheral surface of a cylindrical body 1 and the outer peripheral surface of a flange 2 for sealing the cylindrical body 1. In this case, the cylindrical body 1 is projected outwardly from the end face of the flange 2, and the end face of the cylindrical body 1 is provided with a plurality of notches 11 and projections 12 formed by the notches 11. The inner peripheral surface thereof is further provided with an annular groove 13 communicated with the notches 11. Taper liners 14 are mounted to the projections 12 on the side of the annular groove 13 by means of fastening means 15 and 16. The lock ring 7 is then inserted in the cylindrical body 1 along the inner peripheral surface thereof through the notches 11, and protruding portions 7a of the lock ring 7 are fitted into the annular groove 13. The lock ring 7 is thus rotated to the peripheral direction thereof along the annular groove 13 so that the flange 2 is positioned for fixation in the axial direction thereof to the cylindrical body 1. |
