A one-way pulse diaphragm backflush valve

Abstract

This invention discloses a one-way pulse diaphragm backflush valve, comprising a backflush valve body, an air inlet pipe on the left side of the backflush valve body, an air outlet pipe connected to the bottom of the backflush valve body, a diaphragm installed inside the backflush valve body, a recessed ring formed on the outer wall of the diaphragm, a corrugated ring fixedly connected to the recessed ring, and an airbag recessed layer formed at the bottom of the diaphragm. This invention uses a conical diaphragm structure to completely block the air outlet pipe, and the atmospheric pressure at the top of the diaphragm can also improve the fit between the diaphragm and the air outlet pipe. Furthermore, it designs two different airbag structures formed by the recessed ring, the corrugated ring, the airbag recessed layer, and the airbag diaphragm. The gas in both spaces is the same and does not come into contact with the outside. When the connecting rod is moved upward by the electromagnet, the upper surface of the airbag recessed layer can be pulled, causing the airbag recessed layer to bulge upward and the airbag diaphragm to bulge downward, thus increasing the internal space and creating a vacuum pumping effect.

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