| 摘要 |
<p>A hydraulic connection device for a dishwasher rack which can be positioned at two different heights comprises a sprinkler feed duct (1), integral with the rack and extending upto the outlet (2) of the supply pipe provided with a nozzle (3). Said duct (1) has at its end a chamber (1a) of gradually increasing section which is divided into an upper inlet (7a) and a lower inlet (7b), capable of alternately being the seat wherein said nozzle (3) is tight-inserted. The passage between said chamber (1a) and each inlet (7a, 7b) is usually shut by an upper vane (5a) and a lower vane (5b), respectively, capable of opening under the action of the water flow coming from the outlet (2) as well as under the mechanical action exerted by the nozzle (3), while the other vane, not connected to the nozzle (3), remains closed. The lower vane (5b) is connected along its lower end to the edge of the chamber (1a), capable of rotating with respect thereto thanks to its flexibility. <IMAGE></p> |
