LOCK GATE WITH GROUNDWATER LEVEL REGULATION FUNCTION FOR FIELD

PROBLEM TO BE SOLVED: To provide a lock gate with a groundwater level regulatory function for a field, with which the used amount of piping is reduced, an installation space is saved and an installation operation is simplified. SOLUTION: The lock gate with a groundwater level regulatory function for...

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Bibliographic Details
Main Author MIYAJIMA MASAAKI
Format Patent
LanguageEnglish
Published 12.10.2006
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Summary:PROBLEM TO BE SOLVED: To provide a lock gate with a groundwater level regulatory function for a field, with which the used amount of piping is reduced, an installation space is saved and an installation operation is simplified. SOLUTION: The lock gate with a groundwater level regulatory function for a field has a rising pipe part 5 stood on a branch pipe 4 equipped with a drainage part 4A communicating with a culvert pipe 3, is furnished with a water stop valve 6 for preventing drainage to a drainage part 4A, a first operation part 7 for opening and closing operation of the water stop valve 6, an inlet pipe conduit 8 during a water stop, with which a flowing water from the culvert pipe 3 during a water stop by the water stop valve 6 is introduced into the rising pipe part 5, a drainage pipe conduit 9 for draining the flowing water introduced into the rising pipe part 5 during a water stop to a drainage channel 2 and with a water level regulation pipe 10 for regulating extension and contraction in the vertical direction in the rising pipe part 5. A second operation part 11 for inserting and arranging the first operation part 7 of the water stop valve 6 in the water level regulation pipe 10 and operating extension and contraction of the water level regulation pipe 10 is installed, the second operation part 11 is operational by the upper opening part 5A of the rising pipe part 5 and an overflow from the top of the water level regulation pipe 10 regulated in extension and contraction by the second operation part 11 is drained from the drainage pipe conduit 9 to the drainage channel 2. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050098868