Pinch Valve

摘要

A pinch valve with an axially extending tube guide, a clamping jaw (12) which displaces perpendicularly to the axial direction, and an abutment (12; 21) which is opposite the clamping jaw in the jaw displacement direction. The tube guide, the clamping jaw and the abutment are disposed relative to one another such that a flexible tube (18) laid in the tube guide (18) is pinched by the advancing clamping jaw against the abutment. The clamping jaw has a displaceable support element (14) and two claws (16a, 16b) located opposite one another and engaging around the tube guide at least in some regions. The claws are articulated on the support element (14) by the respective rear ends thereof such as to pivot about pivot pins oriented parallel to the axial direction and forming a mouth which opens as the clamping jaw advances and closes as the clamping jaw retracts.

主权项

1. A pinch valve, comprising
a tube guide extending in an axial direction, a clamping jaw configured to advance and retract in displacement directions that extend perpendicular to the axial direction, and an abutment arranged opposing the clamping jaw in one of the displacement directions of the clamping jaw, wherein the tube guide, the clamping jaw and the abutment are arranged in mutual relation such that a flexible tube in the tube guide is pinched against the abutment by the advance of the clamping jaw, and wherein the clamping jaw comprises at least one displaceable support element and at least two claws which are arranged opposing one another, which have respective rear ends, which engage at least partly around the tube guide, and which, with the respective rear ends, are articulated on the support element so as to pivot about pivot axes oriented parallel to the axial direction, thereby forming a mouth which opens as the clamping jaw advances and which closes as the clamping jaw retracts.