| 摘要 |
<p>1. Drop irrigation device which comprises a cylindrical base (10) in the form of a rigid male element provided with a first pressure-drop circuit (24) comprising axial grooves, a cylindrical cap (12) in the form of a rigid female element, which comes into engagement over said base and which comprises a similar second pressure-drop circuit (44) and a membrane (14) in the form of a flat cylindrical part inserted between the two pressure-drop circuits in order to separate one from the other on their biggest portion, a passageway for enabling the two circuits to communicate with each other, characterized in that the two pressure-drop circuits (24, 44) communicate with each ether through ring-shaped zones (32, 52) which are respectively located at the periphery of each circuit, the inflow or the outflow of the water in the two circuits taking place at their respective centers (22, 42) and in that the membrane (14) which is inserted between the two pressure-drop circuits consists of a flexible and resilient material so as to ensure the tightness between both pressure-drop circuits and the self-regulation by deformation and application on the non-peripheral ring-shaped zones of the pressure-drop circuits (24, 44) of the base (10) and the cap (12).</p> |
