| 摘要 |
An arrangement (4) for a drip irrigation emitter, including a flow-regulating element consisting of a body (2) attachable to or integral with the emitter arrangement (4), in which body (2) there is provided a set of meandering, interconnected recesses defining in conjunction with an elastically deformable diaphragm (10) a flow-regulating labyrinth (6) having inlet and outlet means (14, 16), recesses in the body being defined by toothlike baffles (8) projecting in a staggered arrangement from two opposite walls of the labyrinth (6), which baffles (8) have a top surface defining a position of rest of the elastically deformable diaphragm (10), each of the toothlike baffles (8) ending in a relatively narrow edge, wherein the edge extends from the bottom of the recesses to a point at a height lower then the height of the top surface (12), at least one surface extending from each of the points towards the top surface (12), and intersecting therewith, above which at least one surface the diaphragm (10), in its position of rest, is freely suspended, and wherein, during operation of the emitter, flow regulation is at any instant carried out along the entire usable length of the flow-regulating labyrinth (6).
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