JP3075013B2 - Gas shut-off valve - Google Patents

Gas shut-off valve

Info

Publication number
JP3075013B2
JP3075013B2 JP05109234A JP10923493A JP3075013B2 JP 3075013 B2 JP3075013 B2 JP 3075013B2 JP 05109234 A JP05109234 A JP 05109234A JP 10923493 A JP10923493 A JP 10923493A JP 3075013 B2 JP3075013 B2 JP 3075013B2
Authority
JP
Japan
Prior art keywords
valve
sub
main
gas
spring
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 - Lifetime
Application number
JP05109234A
Other languages
Japanese (ja)
Other versions
JPH06323462A (en
Inventor
正樹 杉山
正樹 山口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP05109234A priority Critical patent/JP3075013B2/en
Publication of JPH06323462A publication Critical patent/JPH06323462A/en
Application granted granted Critical
Publication of JP3075013B2 publication Critical patent/JP3075013B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)
  • Magnetically Actuated Valves (AREA)

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、ガスメータに内蔵さ
れ、電子回路からの信号を受けてガス通路を遮断(閉
弁)・復帰(開弁)するガス遮断弁に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas shut-off valve which is built in a gas meter and receives a signal from an electronic circuit to shut off (close) or return (open) a gas passage.

【0002】[0002]

【従来の技術】現在すでに実用化されている、いわゆる
マイコンメータは、ガス使用量の計量・積算と共に、ガ
スの流量を常に監視し通常の使用状態と違う大量のガス
が流れたり、長時間ガスが連続して流れたり、あるいは
ガス漏れ警報器などの外部センサーからの信号を受ける
とマイコンが異常状態と判断し、ガス遮断弁に電流を流
してガスを遮断し危険を事前に防止する。ガス遮断弁が
遮断した後に安全が確認されて遮断弁を復帰(開弁)し
たい場合は、ガスメータに設けられた機構式復帰ボタン
を人が押して復帰するようになっている。
2. Description of the Related Art A so-called microcomputer meter, which has already been put into practical use, monitors the flow rate of a gas as well as measures and integrates the amount of gas used. When the microcomputer flows continuously or receives a signal from an external sensor such as a gas leak alarm, the microcomputer determines that the state is abnormal, and supplies a current to the gas shutoff valve to shut off gas to prevent a danger in advance. When safety is confirmed after the gas shut-off valve is shut off and the shut-off valve is to be returned (opened), a person presses a mechanical reset button provided on the gas meter to return.

【0003】従来、この種のガス遮断弁は正常時には永
久磁石で開弁状態に保持されており、異常が生じて遮断
する時は永久磁石の吸着力を減ずる方向にコイルに電流
を流してばねの力で遮断していた。ところが、近年では
復帰操作も屋内から遠隔操作したいというニーズが出て
きた。そして、この復帰時のコイル電流は遮断時より大
きく、乾電池の電源容量を増やさねばならず、小電力で
復帰できるガス遮断弁の開発が望まれている。
Conventionally, this type of gas shut-off valve is normally held open by a permanent magnet in a normal state. When an abnormality occurs and shuts off, a current is applied to the coil in a direction to reduce the attraction force of the permanent magnet and the spring is turned off. Was shut off with the power of However, in recent years, there has been a need to remotely control the return operation from indoors. Then, the coil current at the time of this return is larger than that at the time of cutoff, and the power supply capacity of the dry battery must be increased, and the development of a gas cutoff valve that can return with low power is desired.

【0004】例えば、特開平4−254084公報に示
されたような遮断弁がある。以下、従来の実施例を添付
図面に基づいて説明する。図は従来例のガス遮断弁の
閉止状態を示し、駆動部Kはプランジャ23を図の左右
に運動させる励磁力を与える中空のコイル21、磁気回
路を形成するヨーク24、吸引片22を励磁する永久磁
石25、ヨーク24がビス止めされていて主通路Sに気
密に固定されるベース26、プランジャ23が摺動する
ガイドパイプ27よりなっている。
[0004] For example, there is a shut-off valve as disclosed in Japanese Patent Application Laid-Open No. H4-254084. Hereinafter, a conventional example will be described with reference to the accompanying drawings. FIG. 6 shows a closed state of a conventional gas shut-off valve. A driving unit K excites a hollow coil 21 for applying an exciting force for moving a plunger 23 right and left in the drawing, a yoke 24 forming a magnetic circuit, and a suction piece 22. A permanent magnet 25, a yoke 24 is screwed and a base 26 is hermetically fixed to the main passage S, and a guide pipe 27 on which the plunger 23 slides.

【0005】プランジャー23の一端には、副弁28が
形成され、さらにその副弁28の先にはピン29が突出
し、ばね受け30が係止されている。31は主弁体で、
主通路Sの主弁座32に当接する主弁部31aと副弁2
8と当接する副弁座31bが形成され、さらに副通路3
3が形成されている。
[0005] A sub-valve 28 is formed at one end of the plunger 23, and a pin 29 protrudes from the sub-valve 28, and a spring receiver 30 is locked. 31 is a main valve body,
A main valve portion 31a abutting on a main valve seat 32 of the main passage S and an auxiliary valve 2;
8 is formed, and a sub-valve seat 31b is formed.
3 are formed.

【0006】ベース26と主弁31間には主スプリング
34が、またばね受け30と主弁31間には副スプリン
グ35が各々圧縮荷重を受けて介設されている。
A main spring 34 is interposed between the base 26 and the main valve 31, and a sub-spring 35 is interposed between the spring receiver 30 and the main valve 31 by receiving a compressive load.

【0007】こうして、コイル21にプランジャ23を
駆動部K側へ運動させる電流を流すと、プランジャ23
が運動してまず副弁28を開き、次に主弁31が副スプ
リング35により駆動部K側に運動し、主弁31が主弁
座32より離れガスの流通が復帰していた。
[0007] When a current for moving the plunger 23 toward the driving section K is supplied to the coil 21, the plunger 23 is moved.
Moves, first opens the sub-valve 28, then moves the main valve 31 to the drive section K side by the sub-spring 35, the main valve 31 is separated from the main valve seat 32, and the flow of gas is restored.

【0008】[0008]

【発明が解決しようとする課題】しかしながら上記のよ
うな構成では、図にその開弁状態を示したように、プ
ランジャ23の一端に取り付けられたばね受け30と副
スプリング35がガスの主通路S内部に大きく突出して
おり、主弁31が開いた開弁状態においてガス流通の障
害となり大きなガス圧力損失が生じるという課題があっ
た。
However, in the above-described configuration, as shown in FIG. 7 , the valve-opening state is shown, the spring receiver 30 and the auxiliary spring 35 attached to one end of the plunger 23 are connected to the main passage S of the gas. There is a problem in that it protrudes largely inside, and when the main valve 31 is opened, the gas flow is obstructed and a large gas pressure loss occurs.

【0009】また図に示したように、主弁31が閉弁
状態から復帰して開弁するとき、プランジャ23が副ス
プリング35の反力に抗して吸引され副弁28が副弁座
31bより離脱し、副通路33が開放されガスが主通路
Sの下流側に流れる。そして主弁31の両面に印加され
たガスの差圧が小さくなり主弁31が開放される。しか
しこの時ばね受け30が副通路33を覆いふさぐ形とな
り、副通路33のガス流通の妨げとなり、主弁31に印
加された差圧の減少を妨げる。そのため開弁に要する時
間が長くなり、コイル21に通電する時間が多く必要と
なるため、結果として開弁により大きな電気エネルギー
が必要となっていた。
As shown in FIG. 8 , when the main valve 31 returns from the closed state and opens, the plunger 23 is sucked against the reaction force of the sub spring 35 and the sub valve 28 is set in the sub valve seat. The sub-passage 33 is opened and the gas flows downstream of the main passage S. Then, the differential pressure of the gas applied to both surfaces of the main valve 31 decreases, and the main valve 31 is opened. However, at this time, the spring receiver 30 has a shape that covers the sub-passage 33, hinders the gas flow in the sub-passage 33, and prevents a decrease in the differential pressure applied to the main valve 31. Therefore, the time required for opening the valve is prolonged, and the time for energizing the coil 21 is required much. As a result, a large amount of electric energy is required for opening the valve.

【0010】本発明はかかる従来の課題を解決するもの
で、小型で流通ガスの圧力損失が小さく、かつ小電力で
遮断(閉弁)と復帰(開弁)ができるガス遮断弁を実現
することを目的とする。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and realizes a gas shut-off valve which is small in size, has a small pressure loss of flowing gas, and can shut off (close) and return (open) with small electric power. With the goal.

【0011】[0011]

【課題を解決するための手段】上記課題を解決するため
本発明の第一の手段は、突出したプランジャを電磁力と
スプリングの付勢力とのバランスで連動させる駆動部
と、プランジャの対向面に主弁座を有した気体の主通路
と、プランジャの突出端に設けた副弁と、この副弁に当
接する副弁座と、この副弁座を裏面に有した主弁と、こ
の主弁の副弁座に穿孔した気体の副通路と、副弁から突
出して副通路を貫通し、副弁に一体的に保持されたばね
受けと、駆動部と主弁間に介設して主弁を主弁座側に付
勢する主スプリングと、主弁とばね受け間に介設し、副
弁を副弁座に当接する副スプリングを備え、前記主弁の
副スプリングの当接部を主弁内に凹設させたものであ
る。
According to a first aspect of the present invention, there is provided a driving unit for interlocking a protruding plunger with a balance between an electromagnetic force and a biasing force of a spring.
When a main gas passage having a main valve seat facing surface of the plug Nja, and auxiliary valve provided on the projecting end of the plunger, abutting the sub valve seat to the auxiliary valve, the auxiliary valve seat on the back Yes A main valve, a gas sub-passage perforated in a sub-valve seat of the main valve, a spring receiver projecting from the sub-valve and penetrating the sub-passage and integrally held by the sub-valve; A main spring interposed between the main valve and the main valve seat side, and a sub-spring interposed between the main valve and the spring receiver to contact the sub-valve with the sub-valve seat. The contact portion of the spring is recessed in the main valve.

【0012】また、本発明の第の手段は、通気孔を設
けたばね受けを備えたものである。
A second means of the present invention comprises a spring receiver provided with a vent.

【0013】[0013]

【作用】そして上記した第一の手段により本発明のガス
遮断弁は、主弁の副スプリングとの当接部を主弁内に凹
設させた構造をとっているため、主通路内にばね受けが
突出する長さを小さくでき、主弁が開弁状態において主
通路を流通する気体の障害となりにくいため、ガス流の
圧力損失を小さくすることができる。
According to the first means, the gas shut-off valve of the present invention has a structure in which the contact portion of the main valve with the auxiliary spring is recessed in the main valve. The length of the protruding receiver can be reduced, and the gas flowing through the main passage is less likely to be obstructed when the main valve is open, so that the pressure loss of the gas flow can be reduced.

【0014】また、上記した第の手段により本発明の
遮断弁は、ばね受けに通気孔を設けているため、第一及
び第二の手段と同様に、主弁が開弁状態において主通路
を流通するガス流の抵抗を下げる働きをするため、ガス
流の圧力損失を小さくすることができる。加えて、ガス
遮断弁の開弁動作時の副通路のガス流通を容易にし、主
弁に印加される差圧の緩和を促進するため、主弁の復帰
が短時間で行えるため、コイルに通電する時間が短縮で
き、結果として開弁がより小電力でおこなえる。
Further, shut-off valve of the present invention by the second means described above, since the provided vents into the receiving spring, similarly to the first and second means, the main main valve is in the open state the passage Since it acts to lower the resistance of the gas flow flowing through the gas, the pressure loss of the gas flow can be reduced. In addition, the main valve can be returned in a short time to facilitate gas flow in the sub-passage at the time of opening the gas shut-off valve and to ease the differential pressure applied to the main valve. Time can be reduced, and as a result, the valve can be opened with less power.

【0015】[0015]

【実施例】(実施例1) 以下、本発明の実施例を添付図面に基づいて説明する。
図1〜図3は実施例1の遮断弁の開閉状態を示し、駆動
部Kはプランジャ3を図の左右に運動させる励磁力を与
える中空のコイル1、磁気回路を形成するヨーク4、吸
引片2を励磁する永久磁石5、ヨーク4がカシメ止めさ
れていて主通路Sに気密に固定されるベース6、プラン
ジャ3が摺動するガイドパイプ7、流通気体であるガス
をシールするOリング8、8aよりなっている。
(Embodiment 1) An embodiment of the present invention will be described below with reference to the accompanying drawings.
1 to 3 show the open / closed state of the shut-off valve according to the first embodiment. A drive unit K is a hollow coil 1 for applying an exciting force for moving the plunger 3 right and left in the drawing, a yoke 4 forming a magnetic circuit, and a suction piece. A permanent magnet 5 for exciting the magnet 2, a base 6 in which the yoke 4 is caulked and airtightly fixed to the main passage S, a guide pipe 7 on which the plunger 3 slides, an O-ring 8 for sealing a gas as a flowing gas, 8a.

【0016】プランジャー3の一端には、副弁9が形成
され、さらにその副弁9の先にはピン10が突出し、ば
ね受け11が係止されている。12は主弁体で、主通路
Sの主弁座13に当接する主弁12aと副弁9と当接す
る副弁座12bが形成され、さらに副通路14が形成さ
れている。
A sub-valve 9 is formed at one end of the plunger 3, and a pin 10 projects from the sub-valve 9, and a spring receiver 11 is locked. Reference numeral 12 denotes a main valve body, which has a main valve 12a in contact with the main valve seat 13 in the main passage S, a sub-valve seat 12b in contact with the sub-valve 9, and a sub-passage 14 formed therein.

【0017】ベース6と主弁12間には主スプリング1
5が、またバネ受け11と主弁12間には副スプリング
16が各々圧縮荷重を受けて介設されている。ここで、
主弁12の副スプリング16との当接部は主弁12の主
弁座13との当接面より右方向にオフセットされ、副ス
プリング16が主弁12体内に沈み込んで位置した構造
をとっている。コイル1には図示していない電子回路か
ら主弁12を開閉させる電力が供給される。
A main spring 1 is provided between the base 6 and the main valve 12.
A sub spring 16 is interposed between the spring receiver 11 and the main valve 12 by receiving a compressive load. here,
The contact portion of the main valve 12 with the sub-spring 16 is offset to the right from the contact surface of the main valve 12 with the main valve seat 13, and the sub-spring 16 is sunk into the main valve 12. ing. Electric power for opening and closing the main valve 12 is supplied to the coil 1 from an electronic circuit (not shown).

【0018】上記構成に基づいて、図1に示すガス遮断
弁の閉止状態を説明する。主弁12は主スプリング15
の圧縮力により主弁座13に圧接されて主通路Sを閉止
している。このとき、プランジャ3は副スプリング16
の圧縮力に引かれて副弁9が副弁座12bに圧接されて
副通路14を閉止し、ガスは主通路Sは勿論のこと、副
通路14でも流通を遮断されている。プランジャ3は吸
引片2とピッチLの距離により減じられ、副スプリング
16の付勢力が勝るのでこの状態が自己保持して続けら
れる。
The closed state of the gas shut-off valve shown in FIG. 1 will be described based on the above configuration. Main valve 12 is main spring 15
And presses against the main valve seat 13 to close the main passage S. At this time, the plunger 3 is
The sub-valve 9 is pressed against the sub-valve seat 12b by the compression force of the sub-valve 12b to close the sub-passage 14, and the flow of the gas is shut off not only in the main passage S but also in the sub-passage 14. The plunger 3 is reduced by the distance of the pitch L from the suction piece 2, and the biasing force of the sub-spring 16 prevails, so that this state is maintained by itself.

【0019】次に、図2に示すガス遮断弁を開放する初
期動作について説明する。まず、コイル1にプランジャ
3を右方向に運動させる電流を流すと、プランジャ3は
右方向に距離L運動して吸引片2に吸着される。そし
て、副スプリング16が圧縮されて副弁9が副弁座12
bから離脱し、副通路14が開放されてガスが主通路S
の下流側(副スプリング16の位置する側)に流入す
る。
Next, the initial operation of opening the gas shutoff valve shown in FIG. 2 will be described. First, when a current for moving the plunger 3 in the right direction is supplied to the coil 1, the plunger 3 moves rightward by a distance L and is attracted to the suction piece 2. Then, the sub-spring 16 is compressed and the sub-valve 9 is moved to the sub-valve seat 12.
b, the sub-passage 14 is opened and the gas is released from the main passage S.
Downstream (the side where the sub-spring 16 is located).

【0020】最後に、図3に示すガス遮断弁の開放状態
を説明する。図2の状態になってガスが副通路14より
流入すると、主弁12を上流側と下流側のガスが有する
各圧力の差圧で主弁座13に圧接していた差圧力が下流
側の圧力上昇により小さくなる。そして、この差圧力に
よる圧接力を主スプリング15の付勢力に加えた主弁1
2を主弁座13に圧接する力が、プランジャ3が右方向
に距離L運動して生じた副スプリング16の付勢力より
小さくなり、主弁12が主弁座13より離脱する。主弁
12はプランジャ3の右端が吸引片2に吸着され、閉止
時より距離Lの位置で停止する。この後、コイル1への
通電が停止されてもプランジャ3は吸引片2に接触して
強い吸引力で吸着され、主弁12はこの状態で自己保持
され、主通路Sが開放される。
Finally, the open state of the gas shut-off valve shown in FIG. 3 will be described. When the gas flows from the sub-passage 14 in the state of FIG. 2, the differential pressure that has pressed the main valve 12 against the main valve seat 13 with the differential pressure of each pressure of the gas on the upstream side and the downstream side is changed to the downstream side. Decreases due to pressure increase. The main valve 1 is obtained by adding the pressure contact force due to the differential pressure to the urging force of the main spring 15.
The force that presses the main valve 2 against the main valve seat 13 becomes smaller than the urging force of the auxiliary spring 16 generated by the plunger 3 moving the distance L to the right, and the main valve 12 is separated from the main valve seat 13. The right end of the plunger 3 is attracted to the suction piece 2 of the main valve 12, and stops at a position of a distance L from the time of closing. Thereafter, even when the power supply to the coil 1 is stopped, the plunger 3 comes into contact with the suction piece 2 and is sucked by a strong suction force, the main valve 12 is self-held in this state, and the main passage S is opened.

【0021】ここで、小型で小電力のガス遮断弁を実現
する上で重要なことは第1に、前提条件として、開弁状
態で弁体が流通気体であるガスの流れの障害にならず、
ガスの通過抵抗を小さいこと、第2にガス遮断弁の復帰
運動性がよく遮断状態から開放までの時間が短くコイル
の通電時間が短いことが挙げられる。
Here, what is important in realizing a small, low-power gas shut-off valve is, firstly, as a precondition, it does not obstruct the flow of gas in which the valve body is flowing gas when the valve is open. ,
Secondly, the gas passage resistance is small, and secondly, the return movement of the gas shutoff valve is good, the time from the shutoff state to the opening is short, and the energization time of the coil is short.

【0022】そして本発明のガス遮断弁は、主弁12の
副スプリング16との当接部を主弁12内に凹設した構
造をとっているため、副スプリング16は右方向にオフ
セットする事ができる。そのため副スプリング16を受
けるばね受け11の位置も右方向にオフセットする事が
でき、主通路S内のばね受け11や副スプリング16の
突出する体積が小さくなる。結果として、主弁12が開
弁状態において主通路Sを流通する気体の障害となりに
くくなるため、ガス流の圧力損失を小さくすることがで
き、ガス遮断弁を小型化する事ができる。
Since the gas shut-off valve of the present invention has a structure in which the contact portion of the main valve 12 with the sub-spring 16 is recessed in the main valve 12, the sub-spring 16 is offset rightward. Can be. Therefore, the position of the spring receiver 11 that receives the sub-spring 16 can also be offset to the right, and the volume of the spring receiver 11 and the sub-spring 16 in the main passage S protruding is reduced. As a result, the gas flowing through the main passage S is less likely to become an obstacle when the main valve 12 is open, so that the pressure loss of the gas flow can be reduced and the gas shutoff valve can be downsized.

【0023】なお、主弁12はゴム質等の弾性体を使用
し、両スプリング15、16の当接箇所を金属や樹脂等
で保護すれば、副弁9と主弁12の各弁座12b、13
との閉止性能も更に良化され、かつ両スプリング15、
16の付勢力を更に低減してガス遮断弁をより一層の小
電力化が期待できる。
The main valve 12 is made of an elastic material such as rubber, and if the abutting portions of the springs 15 and 16 are protected by metal or resin, the valve seat 12b of the sub valve 9 and the main valve 12 is formed. , 13
And the closing performance with the two springs 15,
It is expected that the urging force of the gas shut-off valve 16 will be further reduced and the power of the gas shut-off valve will be further reduced.

【0024】なお、圧力損失を防ぐために主弁12の開
弁状態から閉弁状態までの移動ストロークLを大きく
し、ばね受け11や副スプリング16の主通路S内への
突出長を小さくする方法や主弁12の径を大きくする方
法も考えられる。しかしこれらの方法は、主弁12の開
放時に要する、プランジャ3を吸引するためにコイル1
に与える電気エネルギーの飛躍的増加を招き、小電力に
反する。
In order to prevent pressure loss, a method of increasing the movement stroke L of the main valve 12 from the open state to the closed state and reducing the length of the spring receiver 11 and the auxiliary spring 16 projecting into the main passage S is reduced. Alternatively, a method of increasing the diameter of the main valve 12 is also conceivable. However, these methods require the coil 1 to suck the plunger 3 which is required when the main valve 12 is opened.
Causes a dramatic increase in the amount of electrical energy applied to the vehicle, contrary to low power.

【0025】(実施例) 最後に、本発明の第の実施例を図〜図に基づいて
説明する。本実施例のガス遮断弁の構成および動作は、
上記第一実施例と弁体構造のみ異なる以外は略同一であ
り、同じ部品については同一符号を付して同じ名称と動
作を有するものとし、詳細な説明は省略し異なる部分の
み説明する。
[0025] (Example 2) Finally, the second embodiment of the present invention will be described with reference to FIGS. 4-5. The configuration and operation of the gas shutoff valve of the present embodiment are as follows:
Approximately the same as the first embodiment except that only the valve structure is different.
Therefore, the same components are denoted by the same reference numerals and have the same names and operations, and detailed description will be omitted, and only different portions will be described.

【0026】図は実施例3のガス遮断弁の開放状態
を、図はガス遮断弁を開放する初期動作状態を示して
いる。本発明のガス遮断弁は図に示したように、ばね
受け17に通気孔Hを設けているため、第一実施例と同
様に、主弁12が開弁状態において主通路Sを流通する
ガス流の抵抗を下げる働きをするため、ガス流の圧力損
失を小さくすることができる。加えてガス遮断弁の開弁
の初期動作時の、副通路14のガス流通を容易にし、主
弁12を閉止する方向に印加されている差圧力の緩和を
促進する。よって主弁12の復帰がより短時間で行える
ため、コイル1に通電する時間が短縮でき、結果として
開弁がより小電力でおこなえる。
FIG. 4 shows an open state of the gas shut-off valve of the third embodiment, and FIG. 5 shows an initial operating state of opening the gas shut-off valve. Gas shut-off valve of the present invention as is shown in FIG. 4, since the provided vents H in the spring receiving 17, the first real 施例same <br/> like, main valve 12 is in the open state Since it functions to reduce the resistance of the gas flow flowing through the main passage S, the pressure loss of the gas flow can be reduced. In addition, at the time of the initial operation of opening the gas shut-off valve, the gas flow in the auxiliary passage 14 is facilitated, and the relaxation of the differential pressure applied in the direction to close the main valve 12 is promoted. Accordingly, the return of the main valve 12 can be performed in a shorter time, so that the time for energizing the coil 1 can be shortened, and as a result, the valve can be opened with less power.

【0027】[0027]

【発明の効果】以上のように本発明のガス遮断弁によれ
ば次の効果が得られる。
As described above, according to the gas shut-off valve of the present invention, the following effects can be obtained.

【0028】請求項1では、主弁の副スプリングとの当
接部を主弁内に凹設した構造をとっているため、主通路
内のばね受けや副スプリングの突出する長さが小さくな
る。結果、主弁が開弁状態において主通路を流通する気
体の障害となりにくくなるため、ガス流の圧力損失を小
さくすることができ、ガス遮断弁を小型化することがで
きる。
According to the first aspect of the present invention, the contact portion of the main valve with the sub-spring is configured to be recessed in the main valve, so that the lengths of the spring receiver and the sub-spring in the main passage are reduced. . As a result, the gas flowing through the main passage is less likely to become an obstacle when the main valve is open, so that the pressure loss of the gas flow can be reduced and the gas shutoff valve can be downsized.

【0029】請求項では、ばね受けに通気孔を設けて
いるため、請求項1のガス遮断弁と同様の効果に加え
て、ガス遮断弁の開弁の初期動作時の、主弁を閉止する
方向に印加されている差圧力の緩和を促進することによ
り、主弁の復帰がより短時間で行えるためコイルに通電
する時間が短縮でき、開弁のより小電力化が可能とな
る。
[0029] In claim 2, since the provided vents into the receiving spring, in addition to the same effect as gas shut-off valve according to claim 1, in the initial operation of the opening of the gas shut-off valve, the main valve By accelerating the mitigation of the differential pressure applied in the closing direction, the main valve can be returned in a shorter time, so that the time for energizing the coil can be shortened, and the electric power for opening the valve can be reduced.

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

【図1】本発明の第1の実施例におけるガス遮断弁の閉
止状態を示した断面図
FIG. 1 is a sectional view showing a closed state of a gas shutoff valve according to a first embodiment of the present invention.

【図2】同遮断弁の開放動作の初期時を示した断面図FIG. 2 is a cross-sectional view showing an initial state of an opening operation of the shut-off valve.

【図3】同遮断弁の開放状態を示した断面図FIG. 3 is a sectional view showing an open state of the shut-off valve.

【図4】本発明の第の実施例におけるガス遮断弁の閉
止状態を示した断面図
FIG. 4 is a sectional view showing a closed state of a gas shutoff valve according to a second embodiment of the present invention.

【図5】同遮断弁の開放動作の初期時を示した断面図FIG. 5 is a sectional view showing an initial state of an opening operation of the shut-off valve.

【図6】従来のガス遮断弁の閉止状態を示した断面図FIG. 6 is a sectional view showing a closed state of a conventional gas shut-off valve.

【図7】同遮断弁の開放状態を示した断面図FIG. 7 is a sectional view showing the open state of the shut-off valve.

【図8】同遮断弁の開放動作の初期時を示した断面図FIG. 8 is a cross-sectional view showing an initial state of an opening operation of the shut-off valve.

【符号の説明】[Explanation of symbols]

3 プランジャ 9 副弁 11,18,19 ばね受け 12 主弁 12a 主弁部 12b 副弁座 13 主弁座 14 副通路 15 主スプリング 16 副スプリング K 駆動部 S 主通路 H 通気孔 Reference Signs List 3 plunger 9 sub-valve 11, 18, 19 spring receiver 12 main valve 12a main valve portion 12b sub-valve seat 13 main valve seat 14 sub-passage 15 main spring 16 sub-spring K drive portion S main passage H ventilation hole

フロントページの続き (58)調査した分野(Int.Cl.7,DB名) F16K 31/06 - 31/11 F16K 17/36 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) F16K 31/06-31/11 F16K 17/36

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】突出したプランジャを電磁力とスプリング
の付勢力とバランスで連動させる駆動部と、プランジャ
の対向面に主弁座を有した気体の主通路と、プランジャ
の突出端に設けた副弁と、この副弁に当接する副弁座
と、この副弁座を裏面に有した主弁と、この主弁の副弁
座に穿孔した気体の副通路と、副弁から突出して副通路
を貫通し、副弁に一体的に保持されたばね受けと、駆動
部と主弁間に介設して主弁を主弁座側に付勢する主スプ
リングと、主弁とばね受け間に介設して副弁を副弁座に
当接する副スプリングを備え、前記主弁の副スプリング
の当接部を主弁内に凹設させてなるガス遮断弁。
And 1. A driving unit for interlocking the protruding plunger force and balance with the electromagnetic force and the spring, the main gas passage having a main valve seat facing surface of the plug Nja, provided in the projecting end of the plunger A sub-valve, a sub-valve seat in contact with the sub-valve, a main valve having the sub-valve seat on the back surface, a sub-passage for gas perforated in the sub-valve seat of the main valve, and a sub-valve protruding from the sub-valve. A spring receiver that penetrates the passage and is integrally held by the sub-valve, a main spring interposed between the drive unit and the main valve to urge the main valve toward the main valve seat, and between the main valve and the spring receiver. A gas shut-off valve comprising a sub-spring interposed between the sub-valve and a sub-valve seat, wherein a contact portion of the main valve with the sub-spring is recessed in the main valve.
【請求項2】通気孔を設けたばね受けを備えた請求項1
記載のガス遮断弁。
2. The apparatus according to claim 1, further comprising a spring receiver provided with a ventilation hole.
A gas shut-off valve as described.
JP05109234A 1993-05-11 1993-05-11 Gas shut-off valve Expired - Lifetime JP3075013B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05109234A JP3075013B2 (en) 1993-05-11 1993-05-11 Gas shut-off valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05109234A JP3075013B2 (en) 1993-05-11 1993-05-11 Gas shut-off valve

Publications (2)

Publication Number Publication Date
JPH06323462A JPH06323462A (en) 1994-11-25
JP3075013B2 true JP3075013B2 (en) 2000-08-07

Family

ID=14505020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05109234A Expired - Lifetime JP3075013B2 (en) 1993-05-11 1993-05-11 Gas shut-off valve

Country Status (1)

Country Link
JP (1) JP3075013B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6339952B2 (en) * 2015-03-10 2018-06-06 本田技研工業株式会社 PCV valve and PCV passage provided with the PCV valve

Also Published As

Publication number Publication date
JPH06323462A (en) 1994-11-25

Similar Documents

Publication Publication Date Title
US6526951B2 (en) Electromagnetic valve for ORVR system
WO1994010487A1 (en) Electromagnetic valve
EP2115336B1 (en) Solenoid valve having a two piece moving valve element
EP0222223B1 (en) Inline solenoid operated slide valve
US6700232B2 (en) Solenoid valve having a clapper armature with yoke pins at the end, remote from the sealing element
JPH10281310A (en) Valve
JP3075013B2 (en) Gas shut-off valve
JP2761424B2 (en) Electric actuated valve and its assembly process
JPS6159428B2 (en)
US20040035472A1 (en) Valve arrangement having electromagnetic actuation
JP2833228B2 (en) Shut-off valve
JP2998926B2 (en) High pressure solenoid valve
EP1092106B1 (en) Electrically actuated reed valve
US6722626B2 (en) Valve providing increase in flow for increase in power level
JP2001041340A (en) Solenoid valve
JPH07243542A (en) Check valve with electromagnetic operating function
JP2998358B2 (en) Shut-off valve
JPS5924306B2 (en) fluid circuit breaker
CN219975563U (en) Small-size solenoid valve of accurate control of gassing fills
JPH085428Y2 (en) Gas shutoff valve
JP2559679Y2 (en) Shut-off valve
JPH10122419A (en) Shut-off valve
US20100313960A1 (en) High Performance Transducer
JP3800701B2 (en) Gas proportional control device
JPH09303601A (en) Shut-off valve

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080609

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090609

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100609

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100609

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110609

Year of fee payment: 11

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120609

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120609

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130609

Year of fee payment: 13

EXPY Cancellation because of completion of term