| 摘要 |
1. A sealing valve for a pneumatic or hydraulic circuit movable inside a fluid-inlet cylinder, of the type comprising a body (4) with an axial bore (8) housing a rod (1), a joint (9) being interposed between the rod and the body in a bore (10) in order to co-operate with a stop (14) of the inlet cylinder, characterized in that the joint (9) has been compressed when assembled in a cone-shaped bore (7) both axially and radially, the axial compression being obtained by means of the shoulder (2) of the rod (3) and a convex annular swelling (7a) machined in the bottom of the bore (7), and the radial compression being obtained by the diameter difference between the inner diameter of the bore (7) and the outer diameter of the joint (5), on the one hand, and between the inner diameter of the joint hole (10) and the diameter of the rear portion (3) of the rod, on the other hand. |
