| 摘要 |
<p>Stop valve for metering and regulating multiple fluid flows and volumes. It consists of a displaceable obturator unit 8 controlled by a spindle 7 axially threaded to a toothed wheel 6 whose rotary force (torque) it receives by means of a reducing gear set of pinions and toothed wheels 5. The displacement of the obturator unit gives rise to a pressure in a very elastic and flexible tube of rubber or the like 20, running between lateral guides as far as a front elastic stop 26, carrying, at the end of its two- way path, end-of-path microswitches 9 and 10, one fixed and the other mounted on the actual displaceable unit, with external regulating means composed of a wheel 12 which displaces a spindle 14 which acts as a stop on the displaceable microswitch.</p> |
