| 摘要 |
Improvements to a hydraulic drive device for raising and lowering the lid and seat of toilettes, characterized by a left and right modules comprising a casing with a central transverse shaft whose ends protrude, each said casing is divided into three recesses; the left shaft end is attached to the lid and the right shaft end to the seat, the opposite end of each shaft being fixed to a drive plate of three flaps, one of each flap housed in each recess of the casing, with each recess also housing a cylindrical diaphragm, which when filled with water press simultaneously against the flaps to cause a partial rotation of the shafts, to raise or lower the lid and seat together or separately by rotary displacement; said diaphragms are fed through a check valve that allows the passage of feed water to fill the diaphragms and to discharge the water from the diaphragms through a duct into the toilet tank when the toilet flush button is actuated; the left and right floor actuation valves are connected to a general water distributor element connected to the water supply duct.
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