JPS63198880U - - Google Patents
Info
- Publication number
- JPS63198880U JPS63198880U JP8899787U JP8899787U JPS63198880U JP S63198880 U JPS63198880 U JP S63198880U JP 8899787 U JP8899787 U JP 8899787U JP 8899787 U JP8899787 U JP 8899787U JP S63198880 U JPS63198880 U JP S63198880U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- solenoid
- coil
- valve
- reed switch
- 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.)
- Pending
Links
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims 2
- 230000005347 demagnetization Effects 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Description
第１図はこの考案に係る常開接点型リードスイ
ツチを実装した遮断弁の断面図、第２図は同Ａ矢
視図、第３図はソレノイドとガス洩れ警報器との
接続関係を示すブロツク図、第４図は作動状態に
おけるタイムチヤート、第５図、第６図は従来の
常閉接点形リードスイツチを用いた遮断弁の作動
検出機構を示す実装説明図である。
１０……遮断弁本体、１２……ソレノイド、１
８……マグネツト、２２……ソレノイドコイル、
２６……プランジヤ、２８……ノズル部、３０…
…弁体、３８……常開接点形リードスイツチ。
Fig. 1 is a sectional view of a shutoff valve equipped with a normally open contact type reed switch according to this invention, Fig. 2 is a view taken in the direction of arrow A, and Fig. 3 is a block diagram showing the connection relationship between a solenoid and a gas leak alarm. 4 are time charts in an operating state, and FIGS. 5 and 6 are implementation explanatory diagrams showing an operation detection mechanism of a shutoff valve using a conventional normally closed contact type reed switch. 10...Shutoff valve body, 12...Solenoid, 1
8...Magnet, 22...Solenoid coil,
26... Plunger, 28... Nozzle section, 30...
...Valve body, 38...Normally open contact type reed switch.
Claims (1)
イドプランジヤに設けた弁をガス流路に形成され
たノズル部に押し付けて流路遮断する遮断弁にお
いて、 前記ソレノイドはマグネツトと、マグネツトの
磁界を打ち消すべく逆方向に励磁されるコイルお
よび前記マグネツトの吸引力により、弁開放側に
付勢され、コイルの励磁によつて突出方向に作動
するプランジヤとを備えたものであつて、前記マ
グネツトの外周部にマグネツトからの漏洩磁束に
よつて接点を閉じる常開接点形リードスイツチを
近接配置し、前記コイルの励磁状態で漏洩磁束の
消磁状態を前記リードスイツチで検出し、検知信
号として取り出すようにしたことを特徴とする遮
断弁の作動検出機構。[Scope of Claim for Utility Model Registration] A cutoff valve that drives a solenoid by an external input and presses a valve provided on a solenoid plunger against a nozzle portion formed in a gas flow path to shut off the flow path, wherein the solenoid is connected to a magnet. , comprising a coil that is excited in the opposite direction to cancel the magnetic field of the magnet, and a plunger that is urged toward the valve opening side by the attraction force of the magnet and operates in the projecting direction by the excitation of the coil. , a normally open contact type reed switch that closes the contact by the leakage magnetic flux from the magnet is placed close to the outer circumference of the magnet, and the reed switch detects the demagnetization state of the leakage magnetic flux while the coil is energized, and a detection signal is generated. An operation detection mechanism for a shutoff valve, characterized in that the shutoff valve is taken out as
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8899787U JPS63198880U (en) | 1987-06-11 | 1987-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8899787U JPS63198880U (en) | 1987-06-11 | 1987-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63198880U true JPS63198880U (en) | 1988-12-21 |
Family
ID=30947579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8899787U Pending JPS63198880U (en) | 1987-06-11 | 1987-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63198880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09133244A (en) * | 1995-11-09 | 1997-05-20 | Rinnai Corp | Self-holding type solenoid valve |
| JPH1038123A (en) * | 1996-07-25 | 1998-02-13 | Tokyo Gas Co Ltd | Bidirectional cutoff valve |
-
1987
- 1987-06-11 JP JP8899787U patent/JPS63198880U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09133244A (en) * | 1995-11-09 | 1997-05-20 | Rinnai Corp | Self-holding type solenoid valve |
| JPH1038123A (en) * | 1996-07-25 | 1998-02-13 | Tokyo Gas Co Ltd | Bidirectional cutoff valve |
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