SANITARY CLEANING DEVICE AND CLEANING WATER SUPPLY STRUCTURE IN SAME DEVICE

PURPOSE:To freely arrange a pump and a sub-tank, and make the whole compact by omitting an opening-closing valve, by arranging a housing by putting two gears of a gear pump in a vertically juxtaposed posture, and always soaking almost all of the lower side gear in cleaning water. CONSTITUTION:A cleaning water tank 1 and a sub-tank 3 are provided, and cleaning water is supplied to a nozzle device 2 from the sub-tank 3 through a gear pump 4. In the gear pump 4, a housing 4a is arranged by putting a pair of gears in a vertically juxtaposed posture, and almost all of the lower side gear 4e is always soaked in the cleaning water, and thereby, at restarting time, priming operation becomes possible by using the cleaning water remaining in the housing 4a as priming water, and the cleaning water is sucked from the upstream sub-tank 3, and can be supplied to the nozzle device 2 side. By making it unnecessary to add a water supply head to the gear pump 4 or to supply the cleaning water after pressurization, a layout is set in such a way as arranging the sub-tank 3 on a lower level than the gear pump 4, and the cleaning water can be supplied.