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A platform for research: civil engineering, architecture and urbanism
WATER LEVEL ADJUSTMENT DEVICE FOR PADDY FIELD
To provide a water level adjustment device for paddy field which can set a water level of a paddy field with a simple operation, and can suppress unexpected displacement of a set position of the water level.SOLUTION: The water level adjustment device for paddy field at least includes: a movable pipe having a cylindrical tube shape; a cylindrical body to which the movable pipe is inserted to the inside in a movable manner along a central axis direction; a lid body which covers the outer peripheral surface biased to one end of the cylindrical body and has a first opening that is formed so as to have a covering region covering the peripheral edge portion of an opening on one end side of the cylindrical body and allows the movable pipe to be inserted; an annular member which is arranged inside of the lid body and has a second opening that allows the movable pipe to be inserted; and an annular elastic member which is sandwiched between the covering region of the lid body and the annular member inside the lid body and has a third opening that can slide the movable pipe, in which an opening diameter of the third opening is equal to or smaller than an outer diameter of the movable pipe and an opening diameter of the third opening is smaller than an opening diameter of the first opening and an opening diameter of the second opening.SELECTED DRAWING: Figure 3
【課題】水田の水位を簡易な操作で設定でき、しかも設定した水位の位置が予期せず変位することを抑制できる水田用水位調節装置を提供する。【解決手段】円筒管状の可動管と、該可動管が中心軸方向に沿って移動可能に内部に挿通される筒状体と、筒状体の一端寄りの外周面を覆い、かつ筒状体の一端側の開口の周縁部分を覆う被覆領域を有するように形成され、可動管を挿通可能な第１開口を備えた蓋体と、蓋体の内側に配され、可動管を挿通可能な第２開口を備えた環状部材と、蓋体の内側において蓋体の被覆領域および環状部材の間に挟持され、可動管を摺動可能な第３開口を備えた環状の弾性部材と、少なくとも備え、第３開口の開口径は可動管の外径と同じかそれよりも小さく、かつ、第３開口の開口径は第１開口の開口径および第２開口の開口径よりも小さい。【選択図】図３
WATER LEVEL ADJUSTMENT DEVICE FOR PADDY FIELD
To provide a water level adjustment device for paddy field which can set a water level of a paddy field with a simple operation, and can suppress unexpected displacement of a set position of the water level.SOLUTION: The water level adjustment device for paddy field at least includes: a movable pipe having a cylindrical tube shape; a cylindrical body to which the movable pipe is inserted to the inside in a movable manner along a central axis direction; a lid body which covers the outer peripheral surface biased to one end of the cylindrical body and has a first opening that is formed so as to have a covering region covering the peripheral edge portion of an opening on one end side of the cylindrical body and allows the movable pipe to be inserted; an annular member which is arranged inside of the lid body and has a second opening that allows the movable pipe to be inserted; and an annular elastic member which is sandwiched between the covering region of the lid body and the annular member inside the lid body and has a third opening that can slide the movable pipe, in which an opening diameter of the third opening is equal to or smaller than an outer diameter of the movable pipe and an opening diameter of the third opening is smaller than an opening diameter of the first opening and an opening diameter of the second opening.SELECTED DRAWING: Figure 3
【課題】水田の水位を簡易な操作で設定でき、しかも設定した水位の位置が予期せず変位することを抑制できる水田用水位調節装置を提供する。【解決手段】円筒管状の可動管と、該可動管が中心軸方向に沿って移動可能に内部に挿通される筒状体と、筒状体の一端寄りの外周面を覆い、かつ筒状体の一端側の開口の周縁部分を覆う被覆領域を有するように形成され、可動管を挿通可能な第１開口を備えた蓋体と、蓋体の内側に配され、可動管を挿通可能な第２開口を備えた環状部材と、蓋体の内側において蓋体の被覆領域および環状部材の間に挟持され、可動管を摺動可能な第３開口を備えた環状の弾性部材と、少なくとも備え、第３開口の開口径は可動管の外径と同じかそれよりも小さく、かつ、第３開口の開口径は第１開口の開口径および第２開口の開口径よりも小さい。【選択図】図３
WATER LEVEL ADJUSTMENT DEVICE FOR PADDY FIELD
水田用水位調節装置
KAWAKAMI NAOSATO (author) / YAJIMA TOMOYUKI (author)
2019-12-26
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
WATER STORAGE AMOUNT ADJUSTMENT DEVICE OF PADDY FIELD AND WATER LEVEL ADJUSTMENT PLATE
| European Patent Office | 2016
| European Patent Office | 2017