(57) A hydraulic connection device for a dishwasher rack which can be positioned at two
different heights includes a sprinkler feed duct (1), integral with the rack and extending
upto the outlet (7) of the supply pipe, said duct (1) being provided with an enlarged
end chamber (2, 2', 2") divided into an upper inlet (3) and a lower inlet (3') suitable
to be alternately fit onto said outlet (7), as well as with shutter means moving inside
said chamber (2, 2', 2") under the action of the water flow coming from the outlet
(7) so as to open that inlet (3, 3') which is in use and close the one which is not
in use. The shutter means may consist of a vane (4) rotatable around a horizontal
pivot (5) located between the two inlets (3, 3'), or a ball (11) slidable along a
guide rim (12), or a pair vanes (4', 4") arranged one on each inlet (3, 3'). The result
is a simple, cheap and reliable device with no problems of tightness or high flow
resistance.
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