JPH0589389A - Controller for interrupting fuel - Google Patents

Abstract

PURPOSE:To realize a fuel interruption controller where a fuel supply interruption operation at the time of fuel usage abnormality is workable during a specified time with high safety. CONSTITUTION:A battery 52 us separated from the battery 53, the switches 33, 54 of an opening and closing means 32 are closely formed so as to respectively turning on a closing valve circuit 56 and an opening valve circuit 60, the switched 57, 58, 61 and 62 are turned on so as to be respectively energized in the (a) direction and (b) direction of a coil 13 and the battery 52 us used as a power source opening and closing a self-holding type electromagnetic valve. An abnormality judging means 35 judges fuel supply abnormality by the detection signal of a sensor 5 and the coil 13 is energized in the (a) direction and interrupted so that the power source is particularly supplied from the battery 53. Since the battery means 32, the fuel supply interruption operation at the time of fuel usage abnormality continuous working for specified time.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、ガス流量の異常を検出
してガス供給を遮断する燃料遮断制御装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel cutoff control device for detecting abnormal gas flow rate to cut off gas supply.

【０００２】[0002]

【従来の技術】従来のこの種の燃料遮断装置は、図５に
示すように、本体１のガス入口と出口間に燃料供給の制
御弁としての自己保持型電磁弁２とガスの計量部３が接
続され、計量部３の流量に応じて回転する回転部４の回
転数をセンサ５で検出し、異常判定手段６で流量信号か
ら燃料使用の異常を判断し、異常の場合には駆動手段７
が自己保持型電磁弁２を閉成し、ガス供給を遮断するよ
うに構成されていた。遮断後、異常原因をとり除いて復
帰手段としての復帰ボタン８を押すことにより、駆動手
段７が自己保持型電磁弁２を復帰棒８ａで機械的に押し
上げて自己保持させガス供給を再開できるものであっ
た。また、開閉手段９を屋内に設置し、屋内から自己保
持型電磁弁２の開閉を駆動手段７を介して行えるように
し、異常遮断時の復帰作業のための操作容易化を図って
いた。2. Description of the Related Art A conventional fuel cutoff device of this type, as shown in FIG. 5, is a self-holding solenoid valve 2 as a fuel supply control valve between a gas inlet and an outlet of a main body 1 and a gas metering portion 3. Is connected, and the sensor 5 detects the number of revolutions of the rotating unit 4 that rotates according to the flow rate of the metering unit 3, and the abnormality determining unit 6 determines an abnormality in fuel use from the flow rate signal. 7
Was configured to close the self-holding solenoid valve 2 and shut off the gas supply. After shutting off, by removing the cause of the abnormality and pressing the return button 8 as the return means, the drive means 7 mechanically pushes up the self-holding solenoid valve 2 with the return rod 8a to self-hold and restart the gas supply. Met. Further, the opening / closing means 9 is installed indoors so that the self-holding solenoid valve 2 can be opened / closed from the inside via the driving means 7, thereby facilitating the operation for the recovery work at the time of abnormal shutoff.

【０００３】自己保持型電磁弁２は図４に示すように、
弁ゴム１０がバネ１１によって弁座１２側に付勢され、
閉成を維持する。また、開成時にはコイル１３に通電す
ることにより、ガイドパイプ１４内のプランジャ１５
が、ヨーク１６で構成される磁気回路によって上方へ吸
引され、弁１０を開成する構成になっていた。この時、
磁気回路中に設けられた永久磁石１７の作用により、コ
イル１３の通電をやめてもプランジャ１５は吸引され続
け、弁１０の開成を自己保持する。再度閉成する時には
コイル１３に逆通電することにより、永久磁石１７の吸
引力を打ち消し、プランジャ１５はバネ１１によって弁
座１２から離脱され、閉成状態に戻るものであった。こ
の場合、弁８を閉成する時の電力はそれ程大きい必要は
ないが、開成する時の電力はバネ１１の力と弁１０に印
加されるガス圧力に打ち勝ってプランジャ１５を吸引し
引き上げる必要があるため、相当大きくなり、電池の消
耗を進行させる。また、手動復帰用の復帰棒８ａを気密
に備えている。The self-holding solenoid valve 2 is, as shown in FIG.
The valve rubber 10 is biased toward the valve seat 12 by the spring 11,
Maintain closure. Further, by energizing the coil 13 at the time of opening, the plunger 15 in the guide pipe 14
However, the valve 10 is opened by being attracted upward by the magnetic circuit formed by the yoke 16. At this time,
Due to the action of the permanent magnet 17 provided in the magnetic circuit, the plunger 15 continues to be attracted even when the coil 13 is de-energized, and the valve 10 is kept open. When reclosing, the coil 13 is reversely energized to cancel the attractive force of the permanent magnet 17, and the plunger 15 is separated from the valve seat 12 by the spring 11 to return to the closed state. In this case, the electric power for closing the valve 8 does not need to be so large, but the electric power for opening the valve 8 must overcome the force of the spring 11 and the gas pressure applied to the valve 10 to suck and pull up the plunger 15. Therefore, it becomes considerably large, and the battery consumption is advanced. Further, a return rod 8a for manual return is airtightly provided.

【０００４】駆動手段７等は図６に示すように、電池Ｂ
を電源とする。センサ５の流量信号が異常の場合には異
常判定手段６の信号により駆動手段７はスイッチ１８，
１９を瞬時閉成し、コイル１３のａ方向に逆通電して自
己保持型電磁弁２を閉成し、ガス供給を遮断するもので
あった。また開閉手段９の閉スイッチ２０を閉成するこ
とによっても異常遮断手段６に閉止信号を出力して自己
保持型電磁弁２を閉成する。一方、開スイッチ２１を閉
成することによって開弁回路２２を動作し、スイッチ２
３，２４を瞬時閉成してコイル１３のｂ方向に通電し、
自己保持型電磁弁２を開成し、ガス供給を再開できるも
のであった。As shown in FIG. 6, the driving means 7 etc. is a battery B.
Power source. When the flow rate signal of the sensor 5 is abnormal, the drive means 7 is switched by the signal of the abnormality determination means 6 and the switch 18,
19 is instantaneously closed, the coil 13 is reversely energized in the a direction, and the self-holding solenoid valve 2 is closed to cut off the gas supply. Also, by closing the closing switch 20 of the opening / closing means 9, a closing signal is output to the abnormal shutoff means 6 to close the self-holding solenoid valve 2. On the other hand, by closing the open switch 21, the valve opening circuit 22 is operated and the switch 2
3, 24 are instantly closed and the coil 13 is energized in the b direction,
The self-holding solenoid valve 2 was opened and the gas supply could be restarted.

【０００５】電源として電池Ｂが使用される理由は、本
装置が屋外設置機器であり、配線工事が嫌われるためで
ある。このため、省電力化が図られて駆動回路７の開弁
回路２２の出力はパルス状になっているとともに、その
出力でガスの遮断・復帰が行われるように、制御弁には
自己保持型電磁弁２が採用されているものである。The reason why the battery B is used as a power source is that this device is an outdoor equipment and the wiring work is disliked. For this reason, power saving is achieved, and the output of the valve opening circuit 22 of the drive circuit 7 is pulsed, and the control valve is a self-holding type so that the output shuts off and restores the gas. The solenoid valve 2 is adopted.

【０００６】[0006]

【発明が解決しようとする課題】しかしながら、上記従
来の構成では、異常が頻繁に発生するものではなく、異
常判定手段７が作動して消耗する電力量はわずかで、電
池寿命の推測に大きな影響を与えるものではない。とこ
ろが、開閉手段９を予測外の使用としてガス元栓代わり
に操作する事例が発生し、電池Ｂが早期に消耗するとい
う問題点が発生した。つまり、開閉手段９の使用頻度が
大きいときには、ガス使用に異常が起っても電池Ｂが既
に消耗されているため、ガス供給を遮断してガス使用を
禁止する処置が取れなくなるという不具合いを招いた。However, in the above-described conventional configuration, the abnormality does not occur frequently, and the amount of power consumed by the operation of the abnormality determining means 7 is small, which greatly affects the estimation of the battery life. Does not give. However, there was a case in which the opening / closing means 9 was operated as an unexpected use instead of the gas main valve, and the battery B was consumed early. That is, when the opening / closing means 9 is used frequently, the battery B is already exhausted even if an abnormality occurs in gas use, so that the measure for interrupting gas supply and prohibiting gas use cannot be taken. invited.

【０００７】そこで、本発明は開閉手段の使用頻度が大
きくても燃料使用に異常が生じたとき、長期間において
燃料供給を遮断できる安全性の高い燃料遮断制御装置の
提供を目的とする。Therefore, an object of the present invention is to provide a highly safe fuel shutoff control device capable of shutting off the fuel supply for a long period of time when the fuel is abnormally used even if the opening / closing means is used frequently.

【０００８】[0008]

【課題を解決するための手段】そして、上記目的を達成
するために、本発明の燃料遮断制御装置の第１手段は、
燃料の供給を制御する自己保持型の制御弁と、燃料の流
量を検出するセンサと、センサの検出信号を受信して燃
料使用の異常を判定する異常判定手段と、手動操作によ
り制御弁開閉の手動信号を出力する開閉手段と、前記検
出信号と前記手動信号を受信して制御弁を開閉する駆動
手段および閉成する電源用の閉止電池と、前記手動信号
を受信して制御弁を開成する電源供給装置を備えたもの
である。In order to achieve the above object, the first means of the fuel cutoff control device of the present invention is:
A self-holding control valve that controls the supply of fuel, a sensor that detects the flow rate of fuel, an abnormality determination unit that receives a detection signal of the sensor to determine an abnormality in fuel use, and a control valve that opens and closes manually. An opening / closing means for outputting a manual signal, a driving means for receiving / closing the detection signal and the manual signal to open / close the control valve, a closing battery for the power supply to be closed, and a receiving / receiving the manual signal for opening the control valve. It is equipped with a power supply device.

【０００９】また、本発明の第２手段は、燃料の供給を
制御する自己保持型の制御弁と燃料の流量を検出するセ
ンサと、センサの検出信号を受信して燃料使用の異常を
判定する異常判定手段と、手動操作により制御弁開閉の
手動信号を出力する開閉手段と、前記検出信号と前記手
動信号を受信して制御弁を開閉する駆動手段と、前記手
動信号を受信して制御弁を開閉する電源供給装置と、前
記検出信号を受信して制御弁を少くとも閉止する電源用
の閉止電池を備えたものである。A second means of the present invention is a self-holding type control valve for controlling the supply of fuel, a sensor for detecting the flow rate of fuel, and a detection signal of the sensor to determine an abnormality in fuel use. Abnormality determining means, opening / closing means for outputting a manual signal for opening / closing the control valve by manual operation, driving means for opening / closing the control valve by receiving the detection signal and the manual signal, and control valve for receiving the manual signal And a closing battery for a power supply that receives the detection signal and closes the control valve at least.

【００１０】さらに、本発明の第３手段は、開弁電流が
閉弁電流より大きい前記自己保持型の制御弁と、電源供
給装置に用いた電池と、手動操作により制御弁開放の手
動信号を出力する復帰手段を備えたものである。Further, the third means of the present invention is such that the self-holding type control valve having a valve opening current larger than the valve closing current, a battery used in the power supply device, and a manual signal for opening the control valve by a manual operation. It is provided with a returning means for outputting.

【００１１】[0011]

【作用】上記した第１手段により、本発明の燃料遮断制
御装置は、開閉手段の使用頻度が大きくても閉止電池が
開閉手段による制御弁の開閉一対動作の内で閉止動作の
ための閉弁電力のみを供給し、開放動作のための開弁電
力を合わせて供給する場合に比べて電力消費が少くな
る。この電力消費の低減量に相当して燃料供給の異常使
用時における遮断動作を長期間継続できる。According to the above-mentioned first means, the fuel cutoff control device of the present invention is such that even if the frequency of use of the opening / closing means is large, the closing battery causes the closing valve to perform the closing operation within the pair of opening / closing operations of the control valve by the opening / closing means. The power consumption is smaller than the case where only the electric power is supplied and the valve opening power for the opening operation is also supplied. Corresponding to this reduction in power consumption, the shutoff operation during abnormal use of fuel supply can be continued for a long period of time.

【００１２】また本発明の第２手段は、閉止電池が開閉
手段の使用の有無とは無関係になり、設定された所定の
長期間に及び燃料供給の異常使用時における遮断動作を
継続できる。In the second means of the present invention, the closing battery is independent of whether or not the opening / closing means is used, and the shut-off operation can be continued for a set predetermined long period and during abnormal use of fuel supply.

【００１３】さらに本発明の第３手段は、開閉手段の使
用頻度が大きくて電源供給装置に用いた電池が消耗後、
燃料使用の異常が検出されて制御弁が閉成したとき、閉
止電池は復帰手段の手動信号により制御弁の開放動作を
する。このとき閉止電池が開弁電力より大きいが閉弁電
力より小さい電力供給能力まで消耗すると、次の異常発
生時に遮断不能となる。この危険を本手段は回避でき
る。Further, according to the third means of the present invention, after the frequency of use of the opening / closing means is high and the battery used in the power supply device is exhausted,
When the control valve is closed due to an abnormality in fuel usage being detected, the closed battery operates to open the control valve by a manual signal from the returning means. At this time, if the shut-down battery is consumed up to a power supply capacity that is larger than the valve-opening power but smaller than the valve-closing power, it becomes impossible to shut off when the next abnormality occurs. This measure can avoid this danger.

【００１４】[0014]

【実施例】以下、本発明の燃料遮断制御装置の実施例に
ついて、添付図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the fuel cutoff control device of the present invention will be described below with reference to the accompanying drawings.

【００１５】図２は本発明の一実施例を示し、従来例と
同一符号を付した部品は同一名称と同一機能を有するの
で詳細な説明を省略する。この実施例では駆動手段３０
が異なっており、装置の制御回路３１を図１に示して説
明する。開閉手段３２はガス供給を手動操作して遮断す
るスイッチ３３および流通するスイッチ３４を有し、手
動信号を出力する。センサ５の検出信号を受信する異常
判定手段としての閉弁回路３５はスイッチ３３の手動信
号も受信する。駆動回路３０は閉弁回路３５の信号によ
りスイッチ３６，３７をオンし、またスイッチ３４の手
動信号を開弁回路３８で受信するとスイッチ３９，４０
をオンする。スイッチ３６，３７のオン時には制御弁と
しての自己保持型電磁弁２のコイル１３に閉弁電流ａを
通電し、またスイッチ３９，４０のオン時にはコイル１
３に開弁電流ｂを通電する。自己保持型電磁弁２の閉弁
電流ａの通電は閉止電池４１より供給し、開弁電流ｂの
通電は電源供給装置としての電池４２から供給する。両
電池４１，４２は所定使用条件のとき１０年間の寿命を
有するように、リチウム電池等のコンパクトで高級なも
のを用いる。また、コイル１３の開弁電流ｂは閉弁電流
ａより大きいため、寿命のバランスを図って電池４２の
方が容量を大きくしておく。両電池４１，４２の容量は
寿命と推定使用頻度により決定する。FIG. 2 shows an embodiment of the present invention, in which parts given the same reference numerals as those of the conventional example have the same names and the same functions, and therefore a detailed description thereof will be omitted. In this embodiment, the drive means 30
However, the control circuit 31 of the apparatus will be described with reference to FIG. The opening / closing means 32 has a switch 33 that manually operates and cuts off the gas supply and a switch 34 that circulates, and outputs a manual signal. The valve closing circuit 35 as the abnormality determining means for receiving the detection signal of the sensor 5 also receives the manual signal of the switch 33. The drive circuit 30 turns on the switches 36 and 37 by the signal of the valve closing circuit 35, and when the manual signal of the switch 34 is received by the valve opening circuit 38, the switches 39 and 40 are turned on.
Turn on. When the switches 36 and 37 are turned on, a coil closing current a is applied to the coil 13 of the self-holding solenoid valve 2 as a control valve, and when the switches 39 and 40 are turned on, the coil 1 is turned on.
The valve-opening current b is applied to 3. The closing current a of the self-holding solenoid valve 2 is supplied from a closed battery 41, and the opening current b is supplied from a battery 42 as a power supply device. For both batteries 41, 42, a compact and high-grade battery such as a lithium battery is used so as to have a life of 10 years under a predetermined use condition. Further, since the valve opening current b of the coil 13 is larger than the valve closing current a, the battery 42 has a larger capacity in order to balance the life. The capacities of both batteries 41, 42 are determined by the service life and the estimated usage frequency.

【００１６】この構成によると、依然として開閉手段３
２がガス元栓４３の代用使用されたとき、従来よりは電
池４２の容量を増やしてはいるが、所定寿命以内で早期
に消耗する。そして、開閉手段３２のスイッチ３４をオ
ンしても自己保持型電磁弁２が開成しないので、復帰ボ
タン８を手動操作して開成し、ガス供給を再開する。こ
の時点で最早や開閉手段３２をガス元栓４３代わりに使
用できないため、スイッチ３３を日常的にオンすること
がなく、閉止電池４１の消耗が停止される。閉止電池４
１は電力消費の小さい閉弁電流ａだけを供給し、電池４
２が消耗した時点では寿命に余裕が出るように設定さ
れ、まだ長期間に及び閉弁電流ａを供給できる。こうし
て、電池４２の消耗に係らず、ガス使用の異常時にガス
遮断を継続して実行できる。According to this structure, the opening / closing means 3 is still used.
When 2 is used in place of the gas tap 43, the capacity of the battery 42 is increased as compared with the conventional one, but it is consumed early within a predetermined life. Since the self-holding solenoid valve 2 does not open even when the switch 34 of the opening / closing means 32 is turned on, the return button 8 is manually operated to open it, and gas supply is restarted. At this point, the opening / closing means 32 can no longer be used in place of the gas main plug 43, so that the switch 33 is not turned on daily and the exhaustion of the closed battery 41 is stopped. Closed battery 4
1 supplies only the valve closing current a with low power consumption, and the battery 4
When 2 is consumed, the life is set to have a margin, and the valve closing current a can be supplied for a long time. In this way, regardless of exhaustion of the battery 42, the gas cutoff can be continuously executed when the gas is abnormally used.

【００１７】図３は本発明の他の実施例を示し、従来例
および上記実施例と同一符号を付した部品は同一名称と
同一機能を有するので説明を省略する。この制御回路は
開閉手段３２の手動信号により自己保持型電磁弁２を開
閉制御する駆動回路５０と、異常判定手段としての閉弁
回路３５の異常判定信号により自己保持型電磁弁２を閉
成制御する駆動回路５１を備える。電源供給装置として
の電池５２は駆動回路５０に、閉止電池５３は駆動回路
５１へ各々個別に電源供給する。駆動回路５１は異常判
定信号を出力してスイッチ５４，５５をオンし、コイル
１３に閉弁電流ａを通電する。駆動回路５０はスイッチ
３３の信号を受信する閉弁回路５６がスイッチ５７，５
８をオンしてコイル１３に閉弁電流ａを通電する。ま
た、スイッチ３４の信号を受信する開弁回路６０は、ス
イッチ６１，６２をオンしてコイル１３に開弁電流ｂを
通電する。FIG. 3 shows another embodiment of the present invention, in which the components having the same reference numerals as those of the conventional example and the above-mentioned examples have the same names and the same functions, and therefore the description thereof will be omitted. This control circuit controls the closing of the self-holding solenoid valve 2 by the drive circuit 50 that controls the opening / closing of the self-holding solenoid valve 2 by the manual signal of the opening / closing means 32 and the abnormality determination signal of the valve closing circuit 35 as the abnormality determination means. The driving circuit 51 is provided. The battery 52 as a power supply device supplies power to the drive circuit 50, and the closed battery 53 supplies power to the drive circuit 51 individually. The drive circuit 51 outputs an abnormality determination signal, turns on the switches 54 and 55, and energizes the coil 13 with the valve closing current a. The drive circuit 50 receives the signal from the switch 33, and the valve closing circuit 56 includes the switches 57 and 5
8 is turned on to apply the valve closing current a to the coil 13. Further, the valve opening circuit 60 which receives the signal of the switch 34 turns on the switches 61 and 62 to supply the valve opening current b to the coil 13.

【００１８】この構成では開閉手段３２でガス元栓４３
の代用使用されると、閉弁電流ａも開弁電流ｂも電池５
２から供給される。そして、電池５２が寿命になるとガ
ス供給が遮断される。一方、閉止電池５３は開閉手段３
２とは係りがなく、設計時に想定した電池寿命を維持
し、前実施例より改善されている。もし、駆動回路５０
をガス元栓４３の代用手段として使用するときには、電
池５２を適切なタイミングで交換すればよく、また電池
５２に代えて商用電源を利用した電源供給装置にすれば
開閉手段を積極的に活用できる。In this structure, the gas main plug 43 is opened by the opening / closing means 32.
When the valve closing current a and the valve opening current b are used instead of the battery 5
Supplied from 2. Then, when the battery 52 reaches the end of its life, the gas supply is cut off. On the other hand, the closing battery 53 is the opening / closing means 3
It has nothing to do with 2, and maintains the battery life assumed at the time of design, which is an improvement over the previous embodiment. If the drive circuit 50
When using as a substitute for the gas main plug 43, the battery 52 may be replaced at an appropriate timing, and if the battery 52 is replaced with a power supply device using a commercial power source, the opening / closing means can be positively utilized.

【００１９】次に、図示はしない別の実施例として、復
帰手段を本体に備えた復帰スイッチとこの操作信号によ
り開弁電流ｂを閉止電池から供給される開弁回路を有す
ると、閉止電池が消耗したときの安全性を高めることが
できる。今もし、制御弁の開弁電流ｂが閉弁電流ａより
小さい逆の場合を想定し、閉止電池が開弁電流ｂと閉弁
電流ａの中間電流ｃを供給できる電力まで消耗し、この
とき電源供給装置としての電池が既に消耗していたと
き、開弁された制御弁が異常時に閉弁しない危険な状態
を発生する。しかし、この実施例では閉弁電池が制御弁
の開弁電流ｂを供給する電力以下の中間電力まで消耗す
ると、制御弁は最早や開弁しないから前記危険な状態を
回避できる優れた安全性を発揮する。また、制御弁が開
閉手段の手動信号により開閉できるので、復帰ボタン８
に代えて復帰スイッチと復帰棒８ａに代えて信号線と
し、駆動手段を開閉手段３２と共用して自己保持型電磁
弁２の構成の簡略化と、この簡略化による自己保持型電
磁弁２のガス等の燃料漏洩の防止性能も向上できる。な
お、開弁電流ｂが閉弁電流ａより小さい制御弁は、この
実施例では採用が好ましくはないが、その他の実施例に
自己保持型電磁弁２と同様に用いてもよい。Next, as another embodiment (not shown), if a reset switch having a restoring means in the main body and a valve opening circuit for supplying a valve opening current b from the closing battery by this operation signal are provided, the closing battery is The safety at the time of exhaustion can be improved. Assuming now that the valve opening current b of the control valve is smaller than the valve closing current a, the closing battery consumes enough power to supply the intermediate current c between the valve opening current b and the valve closing current a. When the battery as the power supply device is already exhausted, a dangerous state occurs in which the opened control valve does not close when abnormal. However, in this embodiment, when the valve closing battery consumes an intermediate electric power equal to or lower than the electric power that supplies the valve opening current b of the control valve, the control valve no longer opens, so that it is possible to avoid the dangerous state. Demonstrate. Further, since the control valve can be opened / closed by a manual signal from the opening / closing means, the return button 8
Instead of the return switch and the return rod 8a, a signal line is used, and the drive means is also used as the opening / closing means 32 to simplify the configuration of the self-holding solenoid valve 2 and the simplification of the self-holding solenoid valve 2 The performance of preventing leakage of fuel such as gas can also be improved. A control valve having a valve opening current b smaller than the valve closing current a is not preferably used in this embodiment, but may be used in other embodiments in the same manner as the self-holding solenoid valve 2.

【００２０】[0020]

【発明の効果】以上説明したように、本発明の燃料遮断
制御装置の請求項１は、開閉手段の使用頻度が大きくて
も閉止電池が開閉手段による制御弁の開閉動作の内で閉
弁電力のみを供給し、開弁電力を合わせて供給する場合
に比べて電力消費を抑制でき、この電力消費の低減量に
相当して燃料供給の異常使用時における遮断動作を長期
間継続できる。As described above, according to the first aspect of the fuel cutoff control device of the present invention, the closing battery causes the closing power to be controlled by the opening / closing means even if the opening / closing means is used frequently. It is possible to suppress the power consumption as compared with the case where only the valve opening power is supplied and the valve opening power is also supplied, and the cutoff operation at the abnormal use of the fuel supply can be continued for a long period of time corresponding to the reduction amount of the power consumption.

【００２１】また、本発明の請求項２は、閉止電池が開
閉手段の使用の有無とは無関係になり、設定された所定
の長期間に及び燃料供給の異常使用時における遮断動作
を継続できる。なお、電源供給装置を商用電源から電力
供給を受けるようにすれば、開閉手段をガス元栓代わり
に積極的に使用できる。According to the second aspect of the present invention, the closed battery is independent of whether or not the opening / closing means is used, and the shut-off operation can be continued for a set predetermined long period and during abnormal use of fuel supply. If the power supply device receives power from a commercial power source, the opening / closing means can be positively used instead of the gas main plug.

【００２２】さらに、本発明の請求項３は、開閉手段の
使用頻度が大きくて電源供給装置に用いた電池が消耗
後、閉止電池が閉弁電流と開弁電流の中間電流を供給す
るまで消耗し、燃料供給の異常使用発生時に制御弁を閉
弁不能状態の発生を防止でき、安全性を更に高めること
ができる。Further, according to claim 3 of the present invention, after the battery used in the power supply device is exhausted due to the frequent use of the opening / closing means, the closing battery is consumed until the intermediate current between the valve closing current and the valve opening current is supplied. However, when the abnormal use of the fuel supply occurs, the control valve cannot be closed and the safety can be further improved.

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

【図１】本発明の燃料遮断制御装置の一実施例を示す制
御回路図FIG. 1 is a control circuit diagram showing an embodiment of a fuel cutoff control device of the present invention.

【図２】同全体構成図[Fig. 2] Overall configuration diagram

【図３】本発明の他の実施例を示す制御回路図FIG. 3 is a control circuit diagram showing another embodiment of the present invention.

【図４】自己保持型電磁弁の断面図FIG. 4 is a sectional view of a self-holding solenoid valve.

【図５】従来の燃料遮断制御装置の全体構成図FIG. 5 is an overall configuration diagram of a conventional fuel cutoff control device.

【図６】同制御回路図FIG. 6 is a control circuit diagram of the same.

【符号の説明】[Explanation of symbols]

２ 自己保持型電磁弁 ５ センサ ８ 復帰ボタン ３０，５０，５１ 駆動手段 ３２ 開閉手段 ３５ 閉弁回路 ４１，５３ 閉止電池 ４２，５２ 電池 2 Self-holding type solenoid valve 5 Sensor 8 Return button 30, 50, 51 Driving means 32 Opening / closing means 35 Valve closing circuit 41, 53 Closing battery 42, 52 Battery

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】燃料の供給を制御する自己保持型の制御弁
と、燃料の流量を検出するセンサと、センサの検出信号
を受信して燃料使用の異常を判定する異常判定手段と、
手動操作により制御弁開閉の手動信号を出力する開閉手
段と、前記検出信号と前記手動信号を受信して制御弁を
開閉する駆動手段および閉成する電源用の閉止電池と、
前記手動信号を受信して制御弁を開成する電源供給装置
を備えた燃料遮断制御装置。1. A self-holding type control valve for controlling fuel supply, a sensor for detecting a flow rate of fuel, and an abnormality determining means for receiving a detection signal of the sensor to determine an abnormality in fuel use.
An opening / closing means for outputting a manual signal for opening / closing the control valve by a manual operation, a driving means for opening / closing the control valve by receiving the detection signal and the manual signal, and a closing battery for closing the power source,
A fuel cutoff control device comprising a power supply device that receives the manual signal and opens a control valve. 【請求項２】燃料の供給を制御する自己保持型の制御弁
と、燃料の流量を検出するセンサと、センサの検出信号
を受信して燃料使用の異常を判定する異常判定手段と、
手動操作により制御弁開閉の手動信号を出力する開閉手
段と、前記検出信号と前記手動信号を受信して制御弁を
開閉する駆動手段と、前記手動信号を受信して制御弁を
開閉する電源供給装置と前記検出信号を受信して制御弁
を少くとも閉止する電源用の閉止電池を備えた燃料遮断
制御装置。2. A self-holding type control valve for controlling fuel supply, a sensor for detecting a flow rate of fuel, and an abnormality determining means for receiving a detection signal of the sensor to determine an abnormality in fuel use.
Opening / closing means for outputting a manual signal for opening / closing the control valve by manual operation, driving means for receiving / opening the control signal by receiving the detection signal and the manual signal, and power supply for opening / closing the control valve by receiving the manual signal A fuel cutoff control device comprising a device and a closing battery for a power supply which receives the detection signal and closes a control valve at least. 【請求項３】開弁電流が閉弁電流より大きい自己保持型
の制御弁と、前記電源供給装置に用いた電池と、手動操
作により制御弁開放の手動信号を出力する復帰手段を備
えた請求項１または請求項２記載の燃料遮断制御装置。3. A self-holding type control valve having a valve opening current larger than the valve closing current, a battery used for the power supply device, and a restoring means for outputting a manual signal for opening the control valve by manual operation. The fuel cutoff control device according to claim 1 or 2.