JPS5826108A - Movable dam - Google Patents

Abstract

PURPOSE:To easily raise and bring down the door plate of a dam by a method in which an expandible bag of a pillow shape is attached to the downstream side of the door plate pivotally attached to the river bed and air is sent into or discharged from the bag for expansion or shrinkage. CONSTITUTION:When raising a bag 7 by sending air into it, a door plate 3 is erected at its lower end as a supporting point and overflow water is flowed down from the upper end of the door plate. When discharging the air of the bag 7, the bag is flattened and the door plate 3 is fallen down and lapped on the flattened bag, whereby permitting river water to flow.

Description

【発明の詳細な説明】 本ＩＩａＩｌｌ！は鋼製扉体の下端を川底に枢着させ、
該扉体を水位に応じて起倒自在に調整するようにした可
動式の堰堤に関するものである。[Detailed Description of the Invention] Book IIaIll! The lower end of the steel door body is pivoted to the riverbed,
This invention relates to a movable dam in which the door body can be raised and lowered according to the water level.

従来、この種の堰堤では一般に扉体な下流側から油圧シ
リンダーで支持させ、皺油圧シリンダーの作動で扉体の
起倒角度を調節するようにしている。このために例えば
転石や堆砂（石）、さらには地震や地盤沈下等の地盤変
動により、油圧シリンダーの摺動部等に歪みや湾曲が生
じて扉体の起倒を円滑に行なえなくするといった欠点が
あった。また、油圧シリンダーは構造的に複雑で設備費
が高額になり、さらに操作の面でも煩雑でかつ熟練を必
要とするといったように多（の離点な持つものであった
。Conventionally, in this type of dam, the gate body is generally supported from the downstream side by a hydraulic cylinder, and the tilting angle of the gate body is adjusted by operating the wrinkle hydraulic cylinder. For this reason, for example, the sliding parts of the hydraulic cylinder may become distorted or curved due to boulders, sedimentation (stones), or even ground movements such as earthquakes or ground subsidence, making it difficult to raise and lower the door body smoothly. There were drawbacks. In addition, hydraulic cylinders had many disadvantages, such as being structurally complex and requiring high equipment costs, as well as being complicated to operate and requiring skill.

本発明はこのような従来欠点を解消した可動堰を提供す
るためのものであり、油圧シリンダー等を使用すること
なく、扉体の下流＠に膨張収縮自在に形成された袋体な
杭状に取付け、咳袋体の膨張収縮に応じて扉板を起倒さ
せるように構成したものであ石。The purpose of the present invention is to provide a movable weir that eliminates such conventional drawbacks, and is designed to provide a movable weir in the form of a bag-shaped pile that is expandable and deflated downstream of the gate without using a hydraulic cylinder or the like. The structure is such that the door plate can be raised and lowered according to the expansion and contraction of the cough bag body.

以下に本発明を一実施例により図面と共に説明する。川
底１には第７図に示すように横断方向に段差！を設けて
下流側に低床部１ａを形成す為、３は川幅に合わせた長
さを持つ鋼製扉体であり、下端に軸筒４を一体に設けで
ある。ｌは低床部１ａの段差鵞位置寄りに列設したアン
カーボルトであり、各アンカーボルトＳの頂部に前記軸
筒４に摺動自在に挿通させる支持軸・を設けゐ、１は扉
体３の長さと噂しくしかも金体が岡−直ＩＩに形成され
た可撓性を有すゐゴム質調の袋体であり、長早方崗の一
側縁に取付片部ｉを設け、さらに誼取付片部３に前記ア
ンカーポル）器に挿通させる取付孔（図示せず）を列設
する。なお、該袋体ｌの一端に注排気管（Ｉｌｌ承せず
）を袋体内部に連通させて接続する。The present invention will be explained below by way of one embodiment with reference to the drawings. As shown in Figure 7, there are steps in the river bed 1 in the transverse direction! In order to form a low floor part 1a on the downstream side, 3 is a steel door body having a length matching the width of the river, and a shaft cylinder 4 is integrally provided at the lower end. 1 is an anchor bolt arranged in a row near the step position of the low floor part 1a, and a support shaft is provided at the top of each anchor bolt S to be slidably inserted into the shaft tube 4; It is rumored to have a long length, and the metal body is made of Oka-Nao II, making it a flexible rubber-like bag. Mounting holes (not shown) through which the anchor hole device is inserted are provided in the mounting piece 3 in a row. In addition, an inlet/exhaust pipe (Ill not included) is connected to one end of the bag I so as to communicate with the inside of the bag.

そして１図示をしない夏付孔を夫々アンカーポル）Ｉに
挿通させ、該アンカーポル）墨の頂部に設けた支持軸６
に軸筒４を挿通させて扉体３を順付けることにより、袋
体１は上面な軸筒４に押さえられたマ付片部３の下面が
川底（低床部１ｍ）に接した状態に厭付けられる。1. The anchor holes (not shown) are inserted through the respective anchor holes (I), and a support shaft 6 is provided at the top of the anchor hole (I).
By inserting the stem tube 4 through and aligning the door body 3, the bag body 1 is brought into a state where the lower surface of the mating piece 3 pressed by the upper stem tube 4 is in contact with the riverbed (low floor part 1 m). Disliked.

このように構成された本発明の可動堰は、袋体！内に空
気を圧入し該袋体１を膨張起立させればその起立に応じ
て扉体畠は下端を支点に起立し、その匍立状鯵を軸持さ
せることができて、扉体３の上端から越流水を放流させ
る。そして、上流水位は袋体Ｔの膨張起立の状態に応じ
た扉体３の起立高さで自由にＷＩｋｙＩ！する二之がで
きるから、袋体１の空気の圧入量により自在に調整が竹
なえる。また、堰として使用する必要のないとぎは％鋳
体７内部の空気を排出してやれば第２図に示したように
袋体マは偏平となり、その上に扉体３が重なって、金体
が低床部１１で段差３内に収まり、川床に接していて流
れを妨げるこ上な（、また、袋体テは扉体３により覆わ
れていて損傷を受けるようなこともない。The movable weir of the present invention configured in this way has a bag body! When air is forced into the bag body 1 and the bag body 1 is expanded and erected, the door body 1 will be erected using its lower end as a fulcrum in response to the erecting of the bag body 1. Overflow water is discharged from the top. Then, the upstream water level can be adjusted freely according to the rising height of the door body 3 according to the state of expansion and standing of the bag body T! Since it is possible to do this, the amount of air injected into the bag body 1 can be freely adjusted. In addition, for sharpeners that do not need to be used as a weir, if the air inside the casting body 7 is exhausted, the bag body becomes flat as shown in Figure 2, and the door body 3 is overlapped on top of it, and the metal body becomes flat. The low floor part 11 fits within the step 3 and is in contact with the riverbed, so it does not impede the flow (also, the bag body is covered by the door body 3 and will not be damaged.

以上、実施例によって説明したことより明らかなように
本発明の可動堰は、その下端を川底で枢支させた鋼製扉
体を下流側から膨張収縮自在の袋体で杭状に支持させ、
該袋体の膨張起立の度合に応じて扉体を起立させるよう
にしたものであゐから、この袋体は従来の油圧シリンダ
ーとは異なり地盤変動等によって障害を受けることはな
い、さらに扉体はその長苧方崗の全体を袋体で支持され
るから流水の水圧で局部的に変浄をするようなこともな
く、長期間にわたり安置よく使用することができる。さ
らにまた、構造ｍ皐で設備費も経済的であり、操作も春
易であるといったように多くの利点を有するものである
。As is clear from the above-described embodiments, the movable weir of the present invention has a steel door body whose lower end is pivoted on the river bed, supported in the form of a pile by a bag body that can be expanded and contracted from the downstream side.
Since the door body is erected according to the degree of expansion and erecting of the bag body, unlike conventional hydraulic cylinders, this bag body will not be disturbed by ground movement etc. Because the whole of the Nagajiga is supported by the bag, there is no local deterioration due to the water pressure of running water, and it can be stored and used for a long period of time. Furthermore, it has many advantages, such as having a compact structure, economical equipment costs, and easy operation.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明の一実施例に係わるもので第１図は流れ方向
で切断して示す使用状態図、第一図は同上不使用状態を
示すものであゐ。 １・・・・川底、３・・・・鋼製扉体、４・・・・軸筒
。 ６・・・・支持軸、マ・・・・ゴム質Ｉ！！１体。 特許出願人　　小　林　　　清The drawings relate to one embodiment of the present invention, and FIG. 1 is a diagram showing a state in which it is used, cut in the direction of flow, and FIG. 1 is a diagram showing a state in which it is not in use. 1...River bottom, 3...Steel door body, 4...Shaft cylinder. 6...Support shaft, M...Rubber I! ! 1 body. Patent applicant Kiyoshi Kobayashi

Claims (1)

【特許請求の範囲】[Claims] 鋼製扉体の下端にヒンジ部を形成して該ヒンジ部を川底
に枢着させて流れを横断する方向に夏付け、諌扉体の下
流側に膨張収縮自在に形成されたゴム質Ｉｌ１ｇＲ体を
該扉体に杭状に取付け、該袋体内部に空做を送り込んで
膨張、収縮させることにより扉体の起立、倒伏状態を維
持させるように構成してなる可動堰。A hinge part is formed at the lower end of the steel door body, the hinge part is pivotally attached to the river bed, and the hinge part is attached in a direction that crosses the flow, and the rubber Il1gR body is formed on the downstream side of the steel door body so as to be expandable and contractible. is attached to the door body in the form of a stake, and the movable weir is configured to maintain the upright and collapsed states of the door body by sending air into the inside of the bag body to inflate and contract.