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Pinch valve

A technology for extruding valves and valve assemblies, applied in the field of extruding valves, can solve the problems of easy wear, damage to braking measures, and no stepless adjustment of flow cross-section, and achieve the effect of fine operation movement.

Active Publication Date: 2014-01-15
FESTO AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the intermediate position of the plunger is only ensured by means of a braking measure which leads to a certain inertia of the actuating movement, does not allow the desired stepless adjustment of the flow cross-section and is relatively prone to wear in the end. cause of damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The squeeze valve, designated as a whole by the reference numeral 1 , is designed in such a way that the flow cross section available for the flow medium when flowing through the valve channel 2 can be variably predetermined.

[0044] The squeeze valve 1 of this embodiment achieves a closed position that completely prevents flow in this respect ( Figure 7 to Figure 10 ), an open position that provides the maximum flow cross-section ( Figure 1 to Figure 6 ) and in particular steplessly any intermediate position between the open position and the closed position in which the flow cross-section lies between zero and the largest possible flow cross-section.

[0045] The flow medium to be controlled is generally a gas or a liquid. Naturally, it is also possible to influence the flow rate of gas-flowable media by means of the squeeze valve 1 , wherein in particular powdery or granular substances are considered here.

[0046] The squeeze valve 1 has a hose-shaped valve asse...

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PUM

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Abstract

Proposed is a pinch valve (1) which has a hose-like valve element (3), an actuating element (18) arranged on the outer circumference of the valve element (3), and at least one radially movable plunger (33a, 33b) arranged between the actuating element (18) and the valve element (3). On the inner side (39) of the actuating element (18) there is situated at least one actuating surface which extends in the circumferential direction and at the same time axially and which bears against a plunger (33a, 33b). By way of guide means (28a, 28b), it is ensured that, in the event of rotation of the actuating element (18), the actuating surface slides on the at least one plunger (33a, 33b) and pushes the latter radially inward, because the spacing of the actuating surface to the valve element (3) varies over the longitudinal profile thereof.

Description

technical field [0001] The invention relates to a squeeze valve comprising a hose-shaped valve unit with a longitudinal axis and a valve unit arranged in the region of the outer circumference of the valve unit and relative to the The valve assembly is rotatable along its circumferential direction, and the squeeze valve further includes at least one valve assembly arranged between the valve assembly and the operation assembly, for the valve assembly to be perpendicular to the valve The longitudinal axis of the assembly co-presses to a greater or lesser extent a plunger which is selectively inwardly towards said valve assembly or outwardly in the opposite direction during the execution of the work movement, wherein said operating assembly is in its On the inner side facing the valve assembly there is at least one actuating surface for the inwardly directed pressing action of the at least one plunger and which leads out on the at least one plunger when performing an actuating mov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K7/04
CPCF16K7/045F16K7/065F16K31/05F16K7/04
Inventor J.贝尔万格M.赫里希
Owner FESTO AG & CO KG