| 摘要 |
<p>The application is concerned with a device (2) for indicating the state of opening of a valve (1), comprising a rotary control member (4) which is intended to be fixed to the control stem (3) of the valve (1) and which includes at least one viewing window (5), a rotary indicating member (6) arranged below the rotary control member (4) and able to be seen through the viewing window (5), and a member (7) which is generally fixed with respect to the body of the valve (1) and arranged below the rotary indicating member (6), wherein the control member (4) comprises at least one stop (8), and the indicating member (6) comprises a first stop (10) and a second stop (9), each being intended to engage with the stop (8) or, respectively, with one of the stops (8) of the control member (4), the second stop (9) being constructed in such a way as to move with respect to the indicating member (6) when the indicating member turns with respect to the generally fixed member (7) in order to engage with or disengage from the corresponding stop (8) of the control member (4).</p> |
