| 摘要 |
PROBLEM TO BE SOLVED: To provide a wash water tank device capable of automatically supplying wash water to a wash water tank during a power failure.SOLUTION: A wash water tank device 18 capable of storing wash water to a wash water tank during a power failure includes: a wash water tank 20; water supply flow passages 42, 52 for supplying wash water from a water supply source to a feed port part 62; a solenoid valve device 46 for electrically opening/closing the water supply flow passages; and a mechanical on-off valve device 48 for mechanically opening/closing the water supply flow passages. The solenoid valve device 46 and the mechanical on-off valve device 48 are mounted in the water supply flow passages so that water supply to the feed port part 62 is performed when at least any one of these valve devices opens the water supply flow passages. The mechanical on-off valve device 48 includes: a valve body 70 opening/closing the water supply flow passages; a float 72 vertically moving depending on the fluctuation of the water level of wash water in the wash water tank 20; and a swing member 74 having one side connected to the float 72 and the other side connected to the valve body 70 and swinging by vertical movement of the float 72 to make the valve body 70 mechanically perform opening/closing operation. |
