JP2976873B2 - A device for fixing a dive sensor to the bottom wall of a channel - Google Patents
A device for fixing a dive sensor to the bottom wall of a channelInfo
- Publication number
- JP2976873B2 JP2976873B2 JP8050024A JP5002496A JP2976873B2 JP 2976873 B2 JP2976873 B2 JP 2976873B2 JP 8050024 A JP8050024 A JP 8050024A JP 5002496 A JP5002496 A JP 5002496A JP 2976873 B2 JP2976873 B2 JP 2976873B2
- Authority
- JP
- Japan
- Prior art keywords
- fixing member
- sensor
- fixing
- flow path
- bottom wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、自由水面をもって流れ
る流路（例えば工場排水や雨水、下水等）の底壁に固定
され、流量の測定に用いられる潜水式センサの固定装置
の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a fixing device for a submersible sensor which is fixed to the bottom wall of a flow path (for example, factory drainage, rainwater, sewage, etc.) flowing with a free water surface and used for measuring the flow rate. It is.
【０００２】[0002]
【従来の技術】水位変動のない流路においては流速を検
出するセンサを用いて流速を測定すれば、水位をもとに
しての水流の断面積と流速とによって流量が計測でき、
あるいは水位が変動する流路においては、その流路に堰
やフリュームを設置してこれの上流側の水位を水位検出
用潜水センサで測定すればその水位をもとにして流量を
計測できる。2. Description of the Related Art In a flow path having no water level fluctuation, if the flow velocity is measured using a sensor that detects the flow velocity, the flow rate can be measured by the cross-sectional area and the flow velocity of the water flow based on the water level.
Alternatively, in a flow path in which the water level fluctuates, if a weir or flume is installed in the flow path and the water level on the upstream side is measured by a water level detection diving sensor, the flow rate can be measured based on the water level.
【０００３】従って従来は、流路底壁にベースを設け
て、このベースに前記潜水式センサを直接固定すること
が行われていた。しかしながら、この方法は流水が流れ
ている状態での設置に際して、センサ設置位置の上流側
を止水すると共に、止水部の下流側においてポンプ排水
を行い、その間にセンサの取付（若しくは取外し）を行
うもので、工数を要すると共に止水装置や排水用ポンプ
が必要である。また流水の遮断時間とセンサ設置の時間
が長くかかり、排水や下水から発生する有毒ガスに晒さ
れる時間が長くなり、人身事故につながるという恐れも
あった。Therefore, conventionally, a base was provided on the bottom wall of the flow channel, and the diving sensor was directly fixed to the base. However, this method stops the water upstream of the sensor installation position and drains the pump downstream of the water stop section during installation in a state where flowing water is flowing, and during this time the sensor is attached (or removed). This requires a lot of man-hours and requires a water stop device and a drainage pump. In addition, it takes a long time to shut off the flowing water and set up the sensor, which increases the time to be exposed to toxic gas generated from drainage and sewage, which may lead to personal injury.
【０００４】上記の問題点を解決する装置として図５
（ａ，縦断面側面図），（ｂ，ａ図の正面図）に示す実
公平１−３６０８６号公報に記載された技術が知られて
いる。この従来例について簡単に説明する。図５
（ａ），（ｂ）において、１は自由水面Ｓをもって流れ
かつ水位が変動する円形の流路、２は円形流路１に設置
されたフリューム、３は水位検出用の潜水式センサ、４
は潜水式センサ３を流路１の底壁Ａに設置するためのセ
ンサ固定装置で、円形流路１の外周の長さよりもやや短
い弧長を有する部分円形状の弧状部材５と流路内壁を反
力点とする突っ張り作用で円弧状部材５を流路底壁Ａに
押接固定させる径変更装置６とからなっている。径変更
装置６は円弧状部材５に蝶番により接続された基板９，
９と、この基板を矢印Ｚ方向に広げ（若しくは縮め）る
ねじ棒１３で構成されている。３１はセンサへの電源の
供給や出力を取り出すためのリード線の保護チューブで
ある。FIG. 5 shows an apparatus for solving the above problems.
A technique described in Japanese Utility Model Publication No. 1-36086 shown in (a, vertical sectional side view) and (b, a front view in FIG. A) is known. This conventional example will be briefly described. FIG.
1 (a) and 1 (b), reference numeral 1 denotes a circular flow path having a free water surface S and varying in water level, 2 denotes a flume installed in the circular flow path 1, 3 denotes a diving sensor for detecting a water level, 4
Is a sensor fixing device for installing the submersible sensor 3 on the bottom wall A of the flow path 1, and a partially circular arc-shaped member 5 having an arc length slightly shorter than the outer circumference of the circular flow path 1 and a flow path inner wall. And a diameter changing device 6 that presses and fixes the arc-shaped member 5 to the flow path bottom wall A by a tensioning action with the point of reaction as a force. The diameter changing device 6 includes a substrate 9 connected to the arc-shaped member 5 by a hinge,
9 and a screw rod 13 for expanding (or contracting) the substrate in the direction of arrow Z. Reference numeral 31 denotes a lead protection tube for supplying power to the sensor and extracting output.
【０００５】上記の構成において、ねじ棒１３の中央部
を回転操作具としてこれを回転させると、この回転運動
がねじ部ｅとナット１２との間で直線運動に変換されて
一方の基板９に伝達され、従ってねじ部ｅとナット１２
とを回転操作することによって両方の基板９，９が相対
的に離れ、これに伴って円弧状部材５が拡径変形する。
その結果円形流路１の内壁を反力点とする突っ張り作用
で円弧状部材５を流路底壁Ａに押接固定される。このよ
うな構成によれば水流を止めることなくセンサの設置や
交換を行うことができる。In the above arrangement, when the screw rod 13 is rotated by using the central portion of the screw rod 13 as a rotary operation tool, the rotational motion is converted into a linear motion between the screw portion e and the nut 12 and is transferred to one of the substrates 9. And thus the thread e and the nut 12
The two substrates 9, 9 are relatively separated by the rotation operation of, so that the arc-shaped member 5 is expanded and deformed.
As a result, the arc-shaped member 5 is pressed and fixed to the bottom wall A of the flow channel by a stretching action using the inner wall of the circular flow channel 1 as a reaction force point. According to such a configuration, the sensor can be installed or replaced without stopping the water flow.
【０００６】ｃ1，ｃ2，ｃ3はセンサ３を中心にして左
右振り分け箇所に設けられた複数個の水平確認用目盛り
で、左右で対応する目盛り例えばｃ3，ｃ3に水糸を張っ
てこれの水平を出すことにより、センサ３を流路１の最
底部に位置させるようになっている。[0006] c 1, c 2, c 3 are a plurality of horizontal confirmation graduations provided on the right and left distribution locations around the sensor 3, pitched Mizuito the corresponding graduation example c 3, c 3 with the left and right By making the lever horizontal, the sensor 3 is positioned at the bottom of the flow path 1.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上記従
来の固定装置においては、径変更のための径変更装置や
サポート部分が流路内に存在しているため、ここに異物
が引っ掛かり流量測定に支障をきたしたり、またわずか
な回転操作具の緩みがセンサの固定不良になるという問
題がある。また、センサの設置や交換に際しては固定装
置の取付け取外しに回転操作が必要なため手間がかかる
という問題があった。更に、一旦取外した固定装置をも
とどうりに固定する場合に位置合わせに時間がかかると
いう問題があった。However, in the above-described conventional fixing device, since the diameter changing device for changing the diameter and the support portion are present in the flow path, foreign matter is caught here and hinders the flow rate measurement. And a slight loosening of the rotary operation tool causes a fixing failure of the sensor. In addition, when installing or replacing the sensor, there is a problem in that a rotation operation is required for attaching and detaching the fixing device, which is troublesome. Further, there is a problem that it takes a long time to perform positioning when the fixing device is fixed once removed.
【０００８】本発明は上記従来技術の問題点を解決する
ためになされたもので、第１固定部材に設けられた挿入
孔から、流路の内壁に沿う様に形成された第２固定部材
を挿入し、この第２固定部材の一端に固定された第３固
定部材を第１固定部材に固定することにより取付け取外
しが簡単なセンサの固定装置を提供することを目的とす
るものである。The present invention has been made to solve the above-mentioned problems of the prior art. A second fixing member formed along an inner wall of a flow passage from an insertion hole provided in the first fixing member. It is an object of the present invention to provide a sensor fixing device that can be easily attached and detached by inserting and fixing a third fixing member fixed to one end of the second fixing member to the first fixing member.
【０００９】[0009]
【課題を解決するための手段】この目的を達成するため
に、本発明は、断面が円筒状の流路の底壁に潜水式セン
サを固定する装置であって、前記流路の外周に設けられ
た挿入孔を有する第１固定部材と、前記流路の内壁に沿
う様に半円状に形成された第２固定部材と、この第２固
定部材の先端付近に固定された潜水式センサと、前記第
２部固定部材の他端に設けられた第３固定部材からな
り、前記第１固定部材に設けられた挿入孔から前記第２
固定部材を挿入し前記第３固定部材を第１固定部材に固
定することにより、前記第２固定部材を前記流路の内壁
に沿って固定すると共に前記センサを流路の底壁に位置
させるように構成したことを特徴とするものである。以
下、発明の実施の形態に基づき詳細に説明する。SUMMARY OF THE INVENTION To achieve this object, the present invention is an apparatus for fixing a diving sensor to the bottom wall of a channel having a cylindrical cross section, provided on the outer periphery of the channel. A first fixing member having an inserted hole, a second fixing member formed in a semicircular shape along the inner wall of the flow path, and a diving sensor fixed near a tip of the second fixing member. A third fixing member provided at the other end of the second part fixing member, wherein the second fixing member is inserted through an insertion hole provided in the first fixing member.
By inserting a fixing member and fixing the third fixing member to the first fixing member, the second fixing member is fixed along the inner wall of the flow path and the sensor is located on the bottom wall of the flow path. It is characterized by having comprised in. Hereinafter, the present invention will be described in detail based on embodiments.
【００１０】[0010]
【発明の実施の形態】図１は本発明の実施の形態の一例
を示す構成説明図である。この例ではフロント部５０、
スロート部５１、リア部５２に３分割された構造の流路
１を示しており、潜水式センサ（例えば圧力センサ）は
フロント部５０に設置される。なお、従来例で示したフ
リューム２はここではスロート部５１に相当する。５１
ａはスロート部を覆うスロートカバーである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram showing an example of an embodiment of the present invention. In this example, the front part 50,
The flow path 1 has a structure divided into three parts, a throat part 51 and a rear part 52, and a diving sensor (for example, a pressure sensor) is installed in the front part 50. The flume 2 shown in the conventional example corresponds to the throat portion 51 here. 51
“a” is a throat cover that covers the throat portion.
【００１１】図において５５はフロント部５０の外周に
形成された第１固定部材である。この第１固定部材５５
は筒体５６の一端にドーナツ状のフランジ５７を固定し
た構成とされ、筒体５６の外周がフロント部５０に形成
された穴の周りに位置するとともにフランジ５７が水平
になるように固定されている（筒体５６とフランジ５７
で挿入穴７０が形成される）。なお、フランジ５７には
ボルト穴６０が形成されている。５８は第２固定部材、
５９は第３固定部材、６１は第２固定部材５８に固定さ
れた圧力センサである。In FIG. 1, reference numeral 55 denotes a first fixing member formed on the outer periphery of the front portion 50. This first fixing member 55
Has a configuration in which a donut-shaped flange 57 is fixed to one end of a cylindrical body 56, and the outer periphery of the cylindrical body 56 is positioned around a hole formed in the front portion 50, and is fixed so that the flange 57 is horizontal. (The cylinder 56 and the flange 57
To form an insertion hole 70). Note that a bolt hole 60 is formed in the flange 57. 58 is a second fixing member,
Reference numeral 59 denotes a third fixing member, and 61 denotes a pressure sensor fixed to the second fixing member 58.
【００１２】図２は第２固定部材５８に第３固定部材５
９を固定した状態を示す構成図である。図に示すように
第２固定部材５８はフロント部５０の内壁に沿うように
例えば厚さ３ｍｍ程度の帯状の板が半円状に形成されて
おり、この第２固定部材５８の先端付近には圧力センサ
６１がサポータ６２及びねじ６３等により固定されてい
る。３１はセンサ６１から延長されるリード線の保護チ
ューブであり、第２固定部材５８の内周に設けられた複
数の止め金具６４で規制されて流路外に取り出される。
なお、圧力センサ６１から延長される保護チューブ３１
は水密構造とされ、外径が太くなる傾向となる。従っ
て、保護チューブ３１の引き出し方向は流路に対し直角
方向（即ち、第２固定部材５８の半円に沿う側）に形成
しておけば取出しが容易となる。FIG. 2 shows the third fixing member 5 attached to the second fixing member 58.
FIG. 9 is a configuration diagram showing a state in which 9 is fixed. As shown in the figure, the second fixing member 58 is formed, for example, in a semicircular band-like plate having a thickness of about 3 mm along the inner wall of the front part 50. The pressure sensor 61 is fixed by a supporter 62 and a screw 63 or the like. Reference numeral 31 denotes a lead protection tube extending from the sensor 61, which is regulated by a plurality of stoppers 64 provided on the inner periphery of the second fixing member 58 and taken out of the flow path.
The protection tube 31 extended from the pressure sensor 61
Has a watertight structure, and the outer diameter tends to be large. Therefore, if the drawing direction of the protection tube 31 is formed in a direction perpendicular to the flow path (that is, on the side along the semicircle of the second fixing member 58), the removal becomes easy.
【００１３】第３固定部材５９はフランジ５７の一部を
覆うと共に２つのボルト穴６０ａを有する取付板５９ａ
と、この取付板５９ａと第２固定部材５８の一端を接続
する連結部材５９ｂにより構成されている。なお、上記
各部材は流路の材質にもよるが例えばステンレス鋼等の
ように錆にくい部材であることが望ましく、流路がプラ
スチックである場合には同じくプラスチック材であって
もよい。A third fixing member 59 covers a part of the flange 57 and has a mounting plate 59a having two bolt holes 60a.
And a connecting member 59b for connecting the mounting plate 59a and one end of the second fixing member 58. Although the above-mentioned members depend on the material of the flow path, they are preferably rust-resistant members such as stainless steel, for example. When the flow path is made of plastic, it may be made of plastic.
【００１４】そして、第２，第３固定部材の形状は図３
の断面図に示すように、第３固定部材５９を第１固定部
材５５に固定したときに第２固定部材５８が流路（フロ
ント部５０）の内壁に押付けられるように取付板５９ａ
と連結部材５９ｂの取り付け角度θが僅かに鋭角になる
ように形成した方が望ましい。The shapes of the second and third fixing members are shown in FIG.
As shown in the cross-sectional view of FIG. 7, the mounting plate 59a is pressed so that the second fixing member 58 is pressed against the inner wall of the flow path (front portion 50) when the third fixing member 59 is fixed to the first fixing member 55.
And the connecting member 59b are desirably formed at a slightly acute angle.
【００１５】上記の構成において、圧力センサ６１を第
２固定部材５８にサポータ６２、ねじ６３等により取り
付け、保護チューブ３１を止め金具６４で固定する。そ
して、圧力センサ６１を取り付けた側を第１固定部材５
５に形成された挿入穴７０から挿入して取付板５９ａを
フランジ５７の上部に配置して、第２固定金具５８を流
路の壁面に沿わせ取付板５９ａをフランジ５７の上面に
ボルト・ナットを用いて固定する。In the above configuration, the pressure sensor 61 is attached to the second fixing member 58 with the supporter 62, the screw 63 and the like, and the protective tube 31 is fixed with the stopper 64. Then, the side on which the pressure sensor 61 is mounted is connected to the first fixing member 5.
5, the mounting plate 59a is disposed on the upper portion of the flange 57 by inserting the mounting plate 59a along the wall surface of the flow path, and the mounting plate 59a is mounted on the upper surface of the flange 57 by bolts and nuts. Fix using.
【００１６】図４はフロント部５０の内壁に第２固定部
材５８の円周方向の動きを規制する円周ストッパ７２及
びサイドストッパ７３を設けたもので、このようなスト
ッパを設けることにより、圧力センサ６１の保守・点検
に際しての位置決めを容易に行うことが出来る。FIG. 4 shows a state in which a circumferential stopper 72 and a side stopper 73 are provided on the inner wall of the front portion 50 for restricting the movement of the second fixing member 58 in the circumferential direction. Positioning for maintenance and inspection of the sensor 61 can be easily performed.
【００１７】なお、このようなフリューム型の流量測定
として、圧力センサを用いずに超音波センサを用いて水
面の高さの変位を検出して流量を測定するものがある。
その場合、超音波センサはフロント部５０の上方にフラ
ンジを用いて固定される。従って本発明で使用するフラ
ンジ５７は超音波センサの取付用として利用することが
でき、また従来フランジに固定していた超音波センサを
取外して本発明の第２，第３固定部材により圧力センサ
を取付ることも可能である。As such a flume type flow rate measurement, there is a method in which the displacement of the height of the water surface is detected using an ultrasonic sensor without using a pressure sensor to measure the flow rate.
In that case, the ultrasonic sensor is fixed above the front part 50 using a flange. Therefore, the flange 57 used in the present invention can be used for mounting an ultrasonic sensor, and the ultrasonic sensor conventionally fixed to the flange is removed, and the pressure sensor is mounted by the second and third fixing members of the present invention. It is also possible to attach.
【００１８】[0018]
【発明の効果】以上説明したように、本発明の構成によ
れば、第１固定部材に設けられた挿入穴から第２固定部
材を挿入し、第３固定部材を第１固定部材に固定するこ
とにより、第２固定部材の半円部を流路の内壁に沿って
固定すると共に前記センサを流路の底壁に位置させるよ
うにしたので、センサの保守が簡単にできる。また、従
来例では保守時にねじを緩めて装置全体を取外さなけれ
ばならず、更に装置の取付けの際も位置決めに時間がか
かったが、本発明では単に第３固定部材を第１固定部材
に固定するだけで良いので設置及び保守が簡単になる。As described above, according to the structure of the present invention, the second fixing member is inserted through the insertion hole provided in the first fixing member, and the third fixing member is fixed to the first fixing member. Thus, since the semicircular portion of the second fixing member is fixed along the inner wall of the flow path and the sensor is located on the bottom wall of the flow path, maintenance of the sensor can be simplified. Further, in the conventional example, it was necessary to loosen the screw at the time of maintenance to remove the entire apparatus, and it took time to position the apparatus at the time of mounting. However, in the present invention, the third fixing member was simply replaced with the first fixing member. Installation and maintenance are simplified because only fixing is required.
【図１】本発明の実施の形態の一例を示す構成説明図で
ある。FIG. 1 is a configuration explanatory diagram showing an example of an embodiment of the present invention.
【図２】第２固定部材に第３固定部材を固定した状態を
示す構成図である。FIG. 2 is a configuration diagram illustrating a state in which a third fixing member is fixed to a second fixing member.
【図３】第１固定部材と第３固定部材の固定状態を示す
説明図である。FIG. 3 is an explanatory view showing a fixed state of a first fixing member and a third fixing member.
【図４】フロント部の内壁に第２固定部材の動きを規制
するストッパを設けた状態を示す説明図である。FIG. 4 is an explanatory view showing a state in which a stopper for restricting the movement of a second fixing member is provided on the inner wall of the front part.
【図５】従来より一般に使用されている従来例の構成説
明図である。FIG. 5 is an explanatory diagram of a configuration of a conventional example generally used in the related art.
１…流路 ２、５１…フリューム（スロート部） ５０…フロント部 ５２…リア部 ５５…第１固定部材 ５８…第２固定部材 ５９…第３固定部材 ６１…潜水式センサ（圧力センサ） ７２…円周ストッパ ７３…サイドストッパ DESCRIPTION OF SYMBOLS 1 ... Flow path 2, 51 ... Flume (throat part) 50 ... Front part 52 ... Rear part 55 ... 1st fixing member 58 ... 2nd fixing member 59 ... 3rd fixing member 61 ... Diving sensor (pressure sensor) 72 ... Circumferential stopper 73 ... Side stopper
Claims (3)
を固定する装置であって、前記流路の外周に設けられた
挿入孔を有する第１固定部材と、前記流路の内壁に沿う
様に半円状に形成された第２固定部材と、この第２固定
部材の先端付近に固定された潜水式センサと、前記第２
部固定部材の他端に設けられた第３固定部材からなり、
前記第１固定部材に設けられた挿入孔から前記第２固定
部材を挿入し前記第３固定部材を第１固定部材に固定す
ることにより、前記第２固定部材を前記流路の内壁に沿
って固定すると共に前記センサを流路の底壁に位置させ
るように構成したことを特徴とする流路底壁への潜水式
センサの固定装置。An apparatus for fixing a diving sensor to a bottom wall of a channel having a cylindrical cross section, comprising: a first fixing member having an insertion hole provided on an outer periphery of the channel; A second fixing member formed in a semicircular shape along the inner wall, a diving sensor fixed near a tip of the second fixing member,
A third fixing member provided at the other end of the portion fixing member,
By inserting the second fixing member from an insertion hole provided in the first fixing member and fixing the third fixing member to the first fixing member, the second fixing member is moved along the inner wall of the flow path. An apparatus for fixing a submersible sensor to a bottom wall of a flow path, wherein the apparatus is configured to be fixed and the sensor is positioned on a bottom wall of the flow path.
形成されたことを特徴とする請求項１記載の流路底壁へ
の潜水式センサの固定装置。2. An apparatus according to claim 1, wherein said second fixing member and said third fixing member are integrally formed.
行うためのストッパを設けたことを特徴とする請求項１
記載の流路底壁への潜水式センサの固定装置。3. The apparatus according to claim 1, wherein a stopper for positioning the second fixing member is provided in the flow path.
An apparatus for fixing a diving sensor to a bottom wall of a flow passage according to the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8050024A JP2976873B2 (en) | 1996-03-07 | 1996-03-07 | A device for fixing a dive sensor to the bottom wall of a channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8050024A JP2976873B2 (en) | 1996-03-07 | 1996-03-07 | A device for fixing a dive sensor to the bottom wall of a channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09243420A JPH09243420A (en) | 1997-09-19 |
| JP2976873B2 true JP2976873B2 (en) | 1999-11-10 |
Family
ID=12847441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8050024A Expired - Fee Related JP2976873B2 (en) | 1996-03-07 | 1996-03-07 | A device for fixing a dive sensor to the bottom wall of a channel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2976873B2 (en) |
-
1996
- 1996-03-07 JP JP8050024A patent/JP2976873B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09243420A (en) | 1997-09-19 |
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