DRIP IRRIGATION TUBE HAVING DOSING ELEMENTS INSERTED THEREIN

摘要

In the case of a drip irrigation tube the dosing elements which are inserted therein and are connected to the walling of the drip irrigation tube each comprise inlet regions, dosing regions and outlet regions, through which the water issues out of the drip irrigation tube via outlet openings installed in the tube walling. The outlet openings are in the form of a slit, the edge regions of the slit are supported by supporting means in such a manner as to limit bending of the edge regions of the slit towards the dosing elements. As a consequence, when negative pressure prevails in the tube contaminants are prevented from being able to penetrate through the slits into the dosing elements and block same.

主权项

1. A drip irrigation tube, comprising:
a drip irrigation tube wall having at least one outlet opening slit; and at least one dosing element connected to an inner surface of the drip irrigation tube wall at a location of the at least one outlet opening slit, wherein the at least one dosing element comprises:
an inlet region, through which water passes from the drip irrigation tube into the dosing element;a dosing region in fluid communication with the inlet region, wherein the dosing region is configured to reduce a pressure of the water flowing into it from the inlet region;an outlet region in fluid communication with the dosing region and located around the at least one outlet opening slit in the drip irrigation tube wall; andat least one support member in the outlet region for supporting edge regions of the at least one outlet opening slit to limit inward bending of the edge regions toward the dosing element, wherein the water that flows into the outlet region from the dosing region issues out of the drip irrigation tube via the at least one outlet opening slit in the drip irrigation tube wall.