JPH0689856B2 - Self-holding gas cutoff valve - Google Patents
Self-holding gas cutoff valveInfo
- Publication number
- JPH0689856B2 JPH0689856B2 JP61009142A JP914286A JPH0689856B2 JP H0689856 B2 JPH0689856 B2 JP H0689856B2 JP 61009142 A JP61009142 A JP 61009142A JP 914286 A JP914286 A JP 914286A JP H0689856 B2 JPH0689856 B2 JP H0689856B2
- Authority
- JP
- Japan
- Prior art keywords
- pedestal
- yoke
- plunger
- pipe
- coil
- 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
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、ガスメータや燃焼器具等のガス通路中に設置
され、異常事態発生時に外部からの駆動電源により作動
し、ガスの通路を遮断する安全装置用の自己保持型ガス
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 safety device that is installed in a gas passage such as a gas meter or a combustion appliance, and is activated by an external drive power source when an abnormal situation occurs to shut off the gas passage. The present invention relates to a self-holding type gas shutoff valve for a vehicle.
従来の技術 一般に安全装置等に使用される自己保持型ガス遮断弁
（以下、遮断弁という）は第２図に示す様に、弁ゴム１
を装着したプランジャ２とヨーク３および吸着片４間を
永久磁石５による磁気回路６を形成し、吸着面７でプラ
ンジャ２と吸着片４を吸着保持している。また、磁気回
路６上の磁束の洩れを少なくして効率を上げるためサブ
ヨーク３′を使用することが多い。プランジャ２の外周
には電磁コイル８を設け、更に弁ゴム１の下部には圧縮
バネ９を備えており、そのセット荷重は、通常時、すな
わちプランジャ２が吸着片４に吸着保持されている時の
吸着保持力より小さくなっており、吸着保持状態が確保
されている。2. Description of the Related Art As shown in FIG. 2, a self-holding type gas shutoff valve (hereinafter referred to as shutoff valve) which is generally used in a safety device has a valve rubber 1
A magnetic circuit 6 is formed by a permanent magnet 5 between the plunger 2 mounted with, the yoke 3 and the attraction piece 4, and the attraction surface 7 attracts and holds the plunger 2 and the attraction piece 4. Further, the sub-yoke 3'is often used in order to reduce the leakage of the magnetic flux on the magnetic circuit 6 and improve the efficiency. An electromagnetic coil 8 is provided on the outer periphery of the plunger 2, and a compression spring 9 is provided below the valve rubber 1. The set load is normal, that is, when the plunger 2 is attracted and held by the attraction piece 4. It is smaller than the suction holding force of, and the suction holding state is secured.
一方、作動時には、コイル８にパルス状の電圧を印加さ
せたりして、磁気回路６の磁界とは逆方向の磁界を発生
させることにより、プランジャ２と吸着片４回の吸着保
持力を弱めることにより、圧縮バネ９の荷重以下になっ
た時プランジャ２が圧縮バネ９により上方に押し上げら
れる様になる。On the other hand, during operation, a pulsed voltage is applied to the coil 8 to generate a magnetic field in the direction opposite to the magnetic field of the magnetic circuit 6, thereby weakening the attraction holding force between the plunger 2 and the attraction piece 4 times. As a result, when the load of the compression spring 9 becomes less than or equal to the load, the plunger 2 is pushed upward by the compression spring 9.
一般に、弁ゴム１がガス通路10中に設けた弁座11に対抗
した位置にストロークｌ分を設けて遮断弁はセットされ
る。Generally, the shutoff valve is set by providing a stroke l at a position where the valve rubber 1 is opposed to the valve seat 11 provided in the gas passage 10.
この時、前述の様に作動時には電磁コイル８に通電され
電流が流れるため、安全対策上、前記コイル８の部分
は、ガス通路10中より隔離し、ガスの雰囲気にさらされ
ない様にする必要がある。At this time, as described above, since the electromagnetic coil 8 is energized and a current flows during operation, as a safety measure, it is necessary to isolate the coil 8 from the gas passage 10 so that it is not exposed to the gas atmosphere. is there.
このため、電磁コイル８の中央孔に設けたパイプ12の内
周の一部に吸着片４の外周との間にシールパッキン材13
を設けるとともに、ヨーク３等の構成部品の固定台を兼
ねた台座14に貫通孔を設け、その内周とパイプ12の外周
との間にシールパッキン材15を設けて、台座14およびパ
イプ12と吸着片４とにより、プランジャ２と電磁コイル
８間をガスシールしている。Therefore, a part of the inner circumference of the pipe 12 provided in the central hole of the electromagnetic coil 8 and the outer circumference of the suction piece 4 are covered with the seal packing material 13.
And a through hole is provided in the pedestal 14 that also serves as a fixing base for the components such as the yoke 3, and a seal packing material 15 is provided between the inner periphery of the pedestal 14 and the outer periphery of the pipe 12 so that the pedestal 14 and the pipe 12 can be connected to each other. The attraction piece 4 provides a gas seal between the plunger 2 and the electromagnetic coil 8.
この場合、台座14の材質は磁気回路６への影響を少なく
するため非磁性体のアルミダイキャスト等が使われてい
る。In this case, the pedestal 14 is made of a non-magnetic material such as aluminum die-cast to reduce the influence on the magnetic circuit 6.
また台座14と、ガス通路10を形成しているガス配管部16
の間に、シールパッキン材17を介して、遮断弁が固定さ
れる。In addition, the pedestal 14 and the gas pipe portion 16 forming the gas passage 10
The shutoff valve is fixed between the two through the seal packing material 17.
発明が解決しようとする問題点 さて、この様な構成では、磁気回路６の磁束の洩れを少
なくし、効率を上げるため、ヨーク３以外にサブヨーク
３′が必要となる。ヨーク３とサブヨーク３′を一体型
で構成することは、遮断弁全体の構成上からもまた組立
工法的な点からも困難であり、おのずとサブヨーク３′
は別部品とならざるを得ないという問題がある。Problems to be Solved by the Invention Now, in such a configuration, in order to reduce the leakage of the magnetic flux of the magnetic circuit 6 and increase the efficiency, a sub-yoke 3'is required in addition to the yoke 3. It is difficult to form the yoke 3 and the sub-yoke 3'integrally from the viewpoint of the construction of the shutoff valve as a whole and from the viewpoint of the assembling method.
Has the problem that it must be a separate part.
問題点を解決するための手段 本発明の自己保持型遮断弁は、弁ゴムを装着したプラン
ジャと吸着片とヨークと永久磁石により磁気回路を形成
し、吸着片と前記プランジャの先端を吸着面で吸着保持
し、プランジャの外周には駆動用コイルを設け、その中
央孔部にパイプを設け、吸着片の外周とパイプの内周と
の間にシールパッキン材を設けるとともに、ヨーク等の
構成部品の固定台を兼ねた台座に貫通孔を設け、その貫
通孔の内周とパイプの外周との間にシールパッキン材を
設けて、台座およびパイプと吸着片により、プランジャ
と駆動用コイル間をガスシールし、台座を磁性材料の板
金プレス製にして、台座外周部に対面するようにヨーク
にフランジ部を設け、台座をシールパッキンを介してガ
ス配管部に当接し、かつ台座の上にヨークのフランジ部
を面接触させてねじ締結し、磁気回路の一部としたもの
である。Means for Solving the Problems The self-holding shutoff valve of the present invention forms a magnetic circuit by a plunger equipped with a rubber valve, a suction piece, a yoke, and a permanent magnet, and the suction piece and the tip of the plunger are arranged on the suction surface. Adsorption and holding, a drive coil is provided on the outer circumference of the plunger, a pipe is provided in the central hole, a seal packing material is provided between the outer circumference of the suction piece and the inner circumference of the pipe, and the components such as the yoke are A through hole is provided in the pedestal that also serves as a fixed base, and a seal packing material is provided between the inner circumference of the through hole and the outer circumference of the pipe, and the pedestal, the pipe, and the suction piece provide a gas seal between the plunger and the drive coil. Then, the pedestal is made of sheet metal press of magnetic material, the flange part is provided on the yoke so as to face the outer peripheral part of the pedestal, the pedestal is brought into contact with the gas pipe through the seal packing, and the yoke of the yoke is placed on the pedestal. The flange portion is brought into surface contact and screw-fastened to form a part of the magnetic circuit.
作 用 本発明の自己保持型ガス遮断弁は、ヨーク等の構成部品
の固定台を兼ねた台座を、磁性体の材料にしてその外周
部にヨークのフランジ部を面接触させているので、両者
の間の空気層の介在を極力減らしている。また磁気回路
の接続ロスを低減することによってコイル等が小型化に
なり、遮断弁全体としての小型化を可能にする。Operation The self-holding type gas cutoff valve of the present invention uses a magnetic material as a pedestal that also serves as a fixing base for components such as the yoke, and the flange portion of the yoke is in surface contact with the outer periphery of the pedestal. The interposition of the air layer between them is reduced as much as possible. Further, by reducing the connection loss of the magnetic circuit, the coil and the like can be downsized, and the shutoff valve as a whole can be downsized.
実施例 以下本発明の一実施例の自己保持型ガス遮断弁（以下遮
断弁という）を図面を参照にして説明する。EXAMPLE A self-holding type gas cutoff valve (hereinafter referred to as a cutoff valve) according to an embodiment of the present invention will be described below with reference to the drawings.
第１図に示す様に弁ゴム１を装着したプランジャ２とヨ
ーク３および吸着片４間を永久磁石５による磁気回路６
を形成し、吸着面７でプランジャ２と吸着片４を吸着保
持している。プランジャ２の外周には駆動コイル８を設
け、更に弁ゴム１の下部には圧縮バネ９を備えており、
そのセット荷重は通常時、すなわち、プランジャ２が吸
着片４に吸着保持されている時の吸着保持力より小さく
なっており、吸着保持状態が確保される。As shown in FIG. 1, a magnetic circuit 6 including a permanent magnet 5 is provided between the plunger 2 having the valve rubber 1 mounted thereon, the yoke 3 and the attraction piece 4.
And the suction surface 7 holds the plunger 2 and the suction piece 4 by suction. A drive coil 8 is provided on the outer circumference of the plunger 2, and a compression spring 9 is provided below the valve rubber 1.
The set load is smaller than the suction holding force at the normal time, that is, when the plunger 2 is held by the suction piece 4, and the suction holding state is secured.
次に、弁ゴム１がガス通路10中に設けた弁座11に対抗し
た位置にストロークｌ分を設けて、遮断弁はセットされ
て使用する。Next, the valve rubber 1 is provided with a stroke l at a position opposed to the valve seat 11 provided in the gas passage 10, and the shutoff valve is set and used.
この作動時に駆動コイル８に通電するため、安全対策
上、駆動コイル８の部分を、ガス通路10中より隔離し、
ガスの雰囲気にさされない様にする必要がある。Since the drive coil 8 is energized during this operation, the portion of the drive coil 8 is isolated from the gas passage 10 for safety reasons,
It is necessary to avoid being exposed to the gas atmosphere.
このため、駆動コイル８の中央孔に設けたパイプ12の内
周の一部に吸着片４の外周との間にシールパッキン材13
を設けるとともに、ヨーク３等の構成部品の固定台を兼
ねた台座14を、磁性材料板金プレス製にして、貫通孔を
設け、その内周とパイプ12の外周との間にシールパッキ
ン材15を設けて、台座14およびバイプ12と吸着片４とに
より、プランジャ２と駆動コイル８間をガスシールして
いる。Therefore, a part of the inner circumference of the pipe 12 provided in the central hole of the drive coil 8 is provided between the outer circumference of the suction piece 4 and the seal packing material 13.
And a pedestal 14 which also serves as a fixing base for the components such as the yoke 3 is made of a magnetic material sheet metal press to form a through hole, and a seal packing material 15 is provided between the inner circumference and the outer circumference of the pipe 12. The pedestal 14 and the vip 12 and the suction piece 4 provide a gas seal between the plunger 2 and the drive coil 8.
また台座14と、ガス通路10を形成しているガス配管部16
の間に、シールパッキン材17を介して、ヨーク３に台座
14の外周部と対面するフランジ18を設け、台座14のねじ
孔19へフランジ18のねじ貫通孔20を介してねじ21で締結
した遮断弁は、このねじ21とは異なる位置で他のねじ
（図示していない）で固定される。In addition, the pedestal 14 and the gas pipe portion 16 forming the gas passage 10
The pedestal on the yoke 3 through the seal packing material 17 between
The shutoff valve is provided with a flange 18 facing the outer peripheral portion of 14 and is fastened to the screw hole 19 of the pedestal 14 with the screw 21 through the screw through hole 20 of the flange 18. (Not shown).
この様な構成では、台座14は磁性材料板金プレス製であ
るため、従来例でいうところの、サブヨーク３′を兼ね
ることにより、図に矢印の閉曲線で示したように、台座
14とフランジ18の接触面22が磁路の広面積な接続面とな
り、かつ単なる部品のはめ込みとは異なりねじ21で締結
されるからエア層の介在による磁気伝導の悪化を少なく
でき、磁気回路６の一部となるのである。In such a configuration, since the pedestal 14 is made of a magnetic material sheet metal press, the pedestal 14 also serves as the sub-yoke 3'as in the conventional example, so that the pedestal is closed as shown by the closed curve of the arrow in the figure.
The contact surface 22 between the flange 14 and the flange 18 serves as a large-area connection surface of the magnetic path, and unlike the simple fitting of the parts, it is fastened with the screw 21, so that the deterioration of the magnetic conduction due to the interposition of the air layer can be reduced, and the magnetic circuit 6 Becomes a part of.
発明の効果 以上の様に、本発明の自己保持型ガス遮断弁は、ヨーク
等の構成部品の固定台を兼ねた台座を磁性材料の板金プ
レス製にし、かつヨークのフランジ部を台座の外周に面
接触させてねじ締結することにより、磁気回路の接続箇
所の１つを前記面接触部分のエア層の介在を極力少なく
し、磁気伝導効率を高めることができる。そして、コイ
ルの小型化等が可能になって遮断弁全体の小型化も期待
できる。As described above, in the self-holding type gas cutoff valve of the present invention, the pedestal that also serves as the fixed base for the components such as the yoke is made of a magnetic material sheet metal press, and the flange portion of the yoke is on the outer periphery of the pedestal. By making surface contact and screw-fastening, it is possible to minimize the interposition of an air layer in the surface contact portion of one of the connection points of the magnetic circuit, and improve the magnetic conduction efficiency. Then, the coil can be downsized and the downsizing of the entire shutoff valve can be expected.
第１図は、本発明の一実施例における自己保持型ガス遮
断弁の断面図、第２図は、従来例の断面図である。 ２……プランジャ、３……ヨーク、４……吸着片、５…
…永久磁石、６……磁気回路、12……パイプ、14……台
座。FIG. 1 is a sectional view of a self-holding type gas cutoff valve according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional example. 2 ... Plunger, 3 ... Yoke, 4 ... Suction piece, 5 ...
… Permanent magnets, 6 ... Magnetic circuit, 12 ... Pipes, 14 ... Pedestal.
Claims (1)
ークと永久磁石により磁気回路を形成し、前記吸着片と
前記プランジャの先端を吸着面で吸着保持し、前記プラ
ンジャの外周には駆動用コイルを設け、その中央孔部に
パイプを設け、前記吸着片の外周と前記パイプの内周と
の間にシールパッキン材を設けるとともに、前記ヨーク
等の構成部品の固定台を兼ねた台座に貫通孔を設け、そ
の貫通孔の内周と前記パイプの外周との間にシールパッ
キン材を設けて、前記台座およびパイプと吸着片によ
り、前記プランジャと前記コイル間をガスシールし、前
記台座を磁性材料の板金プレス製にして、台座外周部に
対面するようにヨークにフランジ部を設け、台座をシー
ルパッキンを介してガス配管部に当接し、かつ台座の上
にヨークのフランジ部を面接触させてねじ締結し、前記
磁気回路の一部とした自己保持型ガス遮断弁。1. A magnetic circuit is formed by a plunger equipped with a valve rubber, a suction piece, a yoke, and a permanent magnet, and the suction piece and the tip of the plunger are suction-held by a suction surface, and the outer periphery of the plunger is for driving. A coil is provided, a pipe is provided in the central hole of the coil, a seal packing material is provided between the outer circumference of the suction piece and the inner circumference of the pipe, and the coil penetrates the pedestal that also serves as a fixing base for the components such as the yoke. A hole is provided, and a seal packing material is provided between the inner circumference of the through hole and the outer circumference of the pipe, and the pedestal, the pipe and the suction piece are used to gas seal between the plunger and the coil, and the pedestal is made magnetic. Made of sheet metal press material, flange is provided on the yoke so as to face the outer periphery of the pedestal, the pedestal is in contact with the gas pipe through the seal packing, and the flange of the yoke is placed on the pedestal. Was allowed to face contact with the screw fastening, the self-holding gas shutoff valve to which a part of the magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61009142A JPH0689856B2 (en) | 1986-01-20 | 1986-01-20 | Self-holding gas cutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61009142A JPH0689856B2 (en) | 1986-01-20 | 1986-01-20 | Self-holding gas cutoff valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62167988A JPS62167988A (en) | 1987-07-24 |
| JPH0689856B2 true JPH0689856B2 (en) | 1994-11-14 |
Family
ID=11712376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61009142A Expired - Lifetime JPH0689856B2 (en) | 1986-01-20 | 1986-01-20 | Self-holding gas cutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689856B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5301243B2 (en) * | 2008-11-14 | 2013-09-25 | カヤバ工業株式会社 | solenoid |
| US20100140519A1 (en) * | 2008-12-04 | 2010-06-10 | General Electric Company | Electromagnetic actuators |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869174U (en) * | 1981-11-04 | 1983-05-11 | 厚木自動車部品株式会社 | solenoid valve |
| JPS58178578U (en) * | 1982-05-25 | 1983-11-29 | 株式会社ウオルブロ−フア−イ−スト | dc solenoid valve |
| JPS6037674U (en) * | 1983-08-22 | 1985-03-15 | シ−ケ−ディコントロ−ルズ株式会社 | gas shutoff valve |
-
1986
- 1986-01-20 JP JP61009142A patent/JPH0689856B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62167988A (en) | 1987-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |