JPH0314620Y2 - - Google Patents
Info
- Publication number
- JPH0314620Y2 JPH0314620Y2 JP6862987U JP6862987U JPH0314620Y2 JP H0314620 Y2 JPH0314620 Y2 JP H0314620Y2 JP 6862987 U JP6862987 U JP 6862987U JP 6862987 U JP6862987 U JP 6862987U JP H0314620 Y2 JPH0314620 Y2 JP H0314620Y2
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- gate valve
- fitted
- alarm device
- closing
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は仕切弁の破損事故防止装置に関する。[Detailed explanation of the idea] Industrial applications The present invention relates to a device for preventing damage to gate valves.
従来の技術とその問題点
上下水道の管路に備えられている仕切弁は長年
放置され老朽化していることが多いが、大きなト
ルクを加えれば殆んどの場合は、支障なく開閉で
きる。ところがなかには老朽化のために既に開閉
機能を失つているものがあり、このような仕切弁
は無理に開閉しようとすると、弁そのものが破損
してしまう。而して仕切弁の開閉操作に際しては
老朽化の診断が必要となり、従来では作業者の経
験によつて行なわれていたが、これでは判断を誤
ることがあり、弁破損事故につながつていた。Conventional technology and its problems Gate valves installed in water and sewage pipelines are often left unused for many years and have deteriorated, but in most cases they can be opened and closed without any problem if a large torque is applied. However, some gate valves have already lost their opening and closing functions due to age, and if you try to forcefully open or close such gate valves, the valve itself will be damaged. Therefore, when opening and closing gate valves, it is necessary to diagnose aging, and conventionally this was done based on the experience of the operator, but this could lead to errors in judgment and lead to valve breakage accidents. .
本考案はこのような従来の問題点を一層するこ
とを目的としてなされたものである。 The present invention has been made with the aim of further resolving these conventional problems.
問題点を解決するための手段
本考案は、下端部に、仕切弁の開閉操作用凸部
に嵌着結合されるソケツト部を、又上端部に、回
動操作用具下端のソケツト部に嵌着結合される凸
部を有するトルク伝達軸と、該軸に装着されたス
トレインゲージと、該ゲージにより送出される電
気信号の出力が所定設定値を越えると作動して警
報を発する警報装置を具備していることを特徴と
する仕切弁の破損事故防止装置に係る。Means for Solving the Problems The present invention has a socket portion fitted into the lower end portion of the gate valve to be fitted into the convex portion for opening/closing the gate valve, and a socket portion fitted into the upper end portion of the gate valve, which is fitted into the socket portion of the lower end of the rotation operating tool. The present invention includes a torque transmission shaft having a convex portion to be coupled, a strain gauge attached to the shaft, and an alarm device that is activated to issue an alarm when the output of an electric signal sent by the gauge exceeds a predetermined set value. This invention relates to a gate valve breakage accident prevention device characterized by:
実施例
以下に本考案の１実施例を添附図面にもとづき
説明すると、次の通りである。Embodiment An embodiment of the present invention will be described below based on the accompanying drawings.
本考案による破損事故防止装置は、トルク伝達
軸１、ストレインゲージ２及び警報装置３を、具
備している。 The damage accident prevention device according to the present invention includes a torque transmission shaft 1, a strain gauge 2, and an alarm device 3.
トルク伝達軸１は、下端部に、仕切弁ａの開閉
操作用凸部a1に嵌着結合されるソケツト部１１
を、また上端部に、回動操作用具ｂ下端のソケツ
ト部b1に嵌着結合される凸部１２をそれぞれ有
し、上端部のフランジ部１３と下端部のソケツト
部１１との間の中間軸部１４に、ストレインゲー
ジ２が装着されている。 The torque transmission shaft 1 has a socket portion 11 at its lower end that is fitted and connected to a convex portion a1 for opening/closing the gate valve a.
It also has a convex part 12 at its upper end that is fitted into the socket part b1 at the lower end of the rotating operation tool b, and has a convex part 12 fitted into the socket part b1 at the lower end of the rotating operation tool b, and an intermediate part between the flange part 13 at the upper end and the socket part 11 at the lower end. A strain gauge 2 is attached to the shaft portion 14.
ストレインゲージ２は、トルク伝達時に生ずる
軸１の歪みを電気信号に変換するためのものであ
り、電気信号の出力はひずみ値ひいては伝達トル
ク値と略々比例する。このようなストレインゲー
ジ２、そのものは公知であり、市販品として容易
に入手できる。 The strain gauge 2 is for converting the strain of the shaft 1 that occurs during torque transmission into an electric signal, and the output of the electric signal is approximately proportional to the strain value and thus the transmitted torque value. Such a strain gauge 2 itself is well known and can be easily obtained as a commercial product.
警報装置３は、上記ゲージ２より送出される電
気信号の出力が、所定設定値を越えると作動して
警報を発するような構成になつている。警報装置
３は上記伝達軸１上に設置固定されていても或い
は図示のように伝達軸１と別になつていてもよ
く、別にする場合は伝達軸１上に、ストレインゲ
ージ２よりの電気信号を送信するための送信器４
が、又警報装置３側に同受信器５（第２図参照）
が備えられる。 The alarm device 3 is configured to operate and issue an alarm when the output of the electrical signal sent from the gauge 2 exceeds a predetermined set value. The alarm device 3 may be installed and fixed on the transmission shaft 1, or it may be separate from the transmission shaft 1 as shown in the figure. If it is separate, the electric signal from the strain gauge 2 is transmitted onto the transmission shaft 1. Transmitter 4 for transmitting
However, there is also a receiver 5 on the alarm device 3 side (see Figure 2).
will be provided.
第２図は警報装置３の作動説明図であり、警報
装置３の電気回路３１に補助的に備えられた電磁
スイツチ３２に、コンパレータ６が接続されてい
る。コンパレータ６には、予め基準トルク値（安
全基準）に見合うデータ信号が入力されており、
ストレインゲージ２より送られてくる検出信号の
出力が上記データ信号のそれを越えると、上記電
磁スイツチ３２を入（又は切）の指令を出し、も
つて上記回路３１を閉成（又は開成）して、警報
装置３を作動し、警報を発するような構成になつ
ている。 FIG. 2 is an explanatory diagram of the operation of the alarm device 3, in which a comparator 6 is connected to an electromagnetic switch 32 auxiliaryly provided in the electric circuit 31 of the alarm device 3. A data signal corresponding to a reference torque value (safety standard) is input in advance to the comparator 6.
When the output of the detection signal sent from the strain gauge 2 exceeds that of the data signal, a command is issued to turn on (or turn off) the electromagnetic switch 32, thereby closing (or opening) the circuit 31. The alarm device 3 is activated to issue an alarm.
第３図は本考案装置の一使用状況を示し、回動
操作用具ｂより仕切弁ａに与えられるトルク値
は、トルク伝達軸１上のストレインゲージ２によ
り検出され、この検出信号の出力が安全基準値以
下の場合は警報装置３は作動せず、この間は仕切
弁ａの破損の危険性がなく安全に作業を行い得
る。一方検出信号の出力が安全基準値を越える
と、警報装置３が作動して警報を発するので、こ
の警報を合図に作業を中止することにより、弁の
破損事故を防止できる。ちなみに開閉できなかつ
た仕切弁は、既に開閉機能を消失してるものと判
断でき、例えば開閉機能を復元するための補修が
行なわれる。 Fig. 3 shows one usage situation of the device of the present invention, in which the torque value applied to the gate valve a from the rotating operation tool b is detected by the strain gauge 2 on the torque transmission shaft 1, and the output of this detection signal is safely If the value is below the reference value, the alarm device 3 will not operate, and during this time, there is no risk of damage to the gate valve a, and work can be carried out safely. On the other hand, when the output of the detection signal exceeds the safety standard value, the alarm device 3 is activated and issues an alarm, and by using this alarm as a signal to stop the work, it is possible to prevent valve breakage accidents. Incidentally, if a gate valve cannot be opened or closed, it can be determined that the valve has already lost its opening/closing function, and, for example, repairs are performed to restore the opening/closing function.
効 果
本考案装置によれば警報の発生の有無を基準に
して仕切弁の開閉装置の続行又は中止を判断で
き、仕切弁の開閉操作を弁破損などのトラブルの
発生なしに、安全確実に行うことができる。Effects According to the device of the present invention, it is possible to determine whether to continue or stop the gate valve opening/closing device based on whether or not an alarm is generated, and the gate valve opening/closing operation can be performed safely and reliably without causing problems such as valve damage. be able to.
第１図は本考案の１実施例を示す一部切欠き正
面図、第２図は警報装置の作動説明図、第３図は
本考案装置の１使用状況を示す一部縦断正面図で
ある。
図に於て、１はトルク伝達軸、２はストレイン
ゲージ、３は警報装置である。
Fig. 1 is a partially cutaway front view showing one embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the alarm device, and Fig. 3 is a partially longitudinal front view showing one usage situation of the device of the present invention. . In the figure, 1 is a torque transmission shaft, 2 is a strain gauge, and 3 is an alarm device.
Claims (1)
されるソケツト部を、又上端部に、回動操作用具
下端のソケツト部に嵌着結合される凸部を有する
トルク伝達軸と、該軸に装着されたストレインゲ
ージと、該ゲージにより送出される電気信号の出
力が所定設定値を越えると作動して警報を発する
警報装置を具備していることを特徴とする仕切弁
の破損事故防止装置。 a torque transmitting shaft having a socket portion at its lower end that is fitted into a convex portion for opening/closing the gate valve; and a torque transmission shaft having a convex portion at its upper end which is fitted into a socket portion at the lower end of a rotating operation tool; A breakage accident of a gate valve characterized by being equipped with a strain gauge attached to the shaft and an alarm device that activates and issues an alarm when the output of an electric signal sent by the gauge exceeds a predetermined set value. Prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6862987U JPH0314620Y2 (en) | 1987-05-07 | 1987-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6862987U JPH0314620Y2 (en) | 1987-05-07 | 1987-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63177370U JPS63177370U (en) | 1988-11-17 |
| JPH0314620Y2 true JPH0314620Y2 (en) | 1991-04-02 |
Family
ID=30908624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6862987U Expired JPH0314620Y2 (en) | 1987-05-07 | 1987-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314620Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6298717B2 (en) * | 2013-05-31 | 2018-03-20 | 株式会社フジキン | Valve load detection device and valve device provided with the same |
| JP6427370B2 (en) * | 2013-09-30 | 2018-11-21 | 株式会社フジキン | Rotary valve |
-
1987
- 1987-05-07 JP JP6862987U patent/JPH0314620Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63177370U (en) | 1988-11-17 |
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