| 摘要 |
<p>Disclosed is a stopcock mechanism (200), comprising a stopcock blade main body (210) and a stopcock blade spindle (220). The stopcock blade main body (210) comprises a rotating part located in the centre thereof and N stopcock blades thereabout, wherein N = 2; and a gauge hole running through the core of the rotating part. The stopcock blade spindle (220) is able to pass through the gauge hole to clamp the stopcock blade main body (210); and the stopcock blades comprise a protruding part (214), the protruding part (214) protruding radially with respect to the rotating part. Also disclosed is a planetary rotation-type rotation device having said stopcock mechanism. In a workflow the stopcock mechanism can equalize fluid pressure torque to which it is subjected, thereby avoiding the influence of fluid backpressure, the stopcock mechanism opening/closing easily; a roller planetary piston wheel can pass through a critical area easily; and, at the same time as the stopcock mechanism is activated, the next closing operation can immediately be completed, thereby meeting the requirement of a high switching rate.</p> |
