JPH0443659Y2 - - Google Patents
Info
- Publication number
- JPH0443659Y2 JPH0443659Y2 JP6152289U JP6152289U JPH0443659Y2 JP H0443659 Y2 JPH0443659 Y2 JP H0443659Y2 JP 6152289 U JP6152289 U JP 6152289U JP 6152289 U JP6152289 U JP 6152289U JP H0443659 Y2 JPH0443659 Y2 JP H0443659Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- electrodes
- operation confirmation
- valve body
- 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
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000012790 confirmation Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 5
- 239000012777 electrically insulating material Substances 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
- Magnetically Actuated Valves (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、弁体による弁座の開閉動作を確認で
きる、弁の動作確認機構に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a valve operation confirmation mechanism that can confirm the opening/closing operation of a valve seat by a valve body.
［従来の技術］
マニホールドベース上に複数個の電磁弁を設置
して、弁を集中管理する場合等においては、動作
不良の弁を速やかに発見するために、弁の開閉動
作を確認できる確認機構を設ける必要がある。[Prior art] When multiple solenoid valves are installed on a manifold base and the valves are centrally managed, a confirmation mechanism that can check the opening and closing operations of the valves is needed to quickly discover malfunctioning valves. It is necessary to provide
従来、上記動作確認機構として、励磁コイルへ
の通電により点灯する表示灯を設けたもの、或い
はコイルの磁路を構成する磁気枠にリードスイツ
チを設けたものが知られている。 Conventionally, as the above-mentioned operation confirmation mechanism, one is known that is provided with an indicator light that lights up when the excitation coil is energized, or one that is provided with a reed switch on a magnetic frame that constitutes the magnetic path of the coil.
しかしながら、これらの確認機構は、可動鉄心
が異物の噛込み等によつて摺動しない場合でも表
示が切替わるので、弁の開閉動作を正確に確認す
ることができない。 However, in these confirmation mechanisms, the display changes even when the movable core does not slide due to foreign matter being caught, etc., so it is not possible to accurately confirm the opening/closing operation of the valve.
この問題を解決するものとして、可動鉄心と一
体に動作する操作棒によつてスイツチを動作させ
る動作確認機構が、実開昭55−165166号公報に提
案されている。 As a solution to this problem, an operation confirmation mechanism has been proposed in Japanese Utility Model Application Publication No. 165166/1983 in which a switch is operated by an operating rod that operates integrally with a movable iron core.
上記既提案の電磁弁は、第５図に示すように、
ポート間の流路中に弁座３を設けた弁部１と、電
磁部２とを備え、電磁部２における可動鉄心５
に、弁座３を開閉する弁体６と操作棒７とをそれ
ぞれ設け、電磁部２外に気密に突出する上記操作
棒７によつて、電磁部２に取付けたスイツチ８を
動作させるものである。 As shown in Fig. 5, the previously proposed solenoid valve is as follows:
A movable iron core 5 in the electromagnetic part 2 is provided, and a valve part 1 has a valve seat 3 in a flow path between ports, and an electromagnetic part 2.
A valve body 6 and an operating rod 7 are provided to open and close the valve seat 3, respectively, and a switch 8 attached to the electromagnetic section 2 is operated by the operating rod 7 that protrudes airtightly outside the electromagnetic section 2. be.
この動作確認機構は、弁体６と一体的に動作す
る操作棒７によつてスイツチ８を動作させるた
め、弁体６の動作不良の場合には操作棒７が動作
しないので、スイツチ８の開閉によつて弁の動作
不良を確認することができる。 In this operation confirmation mechanism, the switch 8 is operated by the operation rod 7 that operates integrally with the valve body 6, so if the valve body 6 malfunctions, the operation rod 7 does not operate, so the switch 8 cannot be opened or closed. Malfunction of the valve can be confirmed by
しかしながら、操作棒７が電磁部２を貫通して
いるために、流体が外部にリークするシール不良
や、操作棒７の固着による動作不良という新たな
問題がある。 However, since the operating rod 7 penetrates the electromagnetic part 2, there are new problems such as a seal failure in which fluid leaks to the outside and malfunction due to the operating rod 7 sticking.
また、スイツチ８を電磁部２外に設けているた
め、弁が大形になるという問題もある。 Furthermore, since the switch 8 is provided outside the electromagnetic section 2, there is also the problem that the valve becomes large.
［考案が解決しようとする課題］
本考案が解決しようとする課題は、流体のリー
クや固着による動作不良のない、弁の動作確認機
構を提供することにある。[Problem to be solved by the invention] The problem to be solved by the invention is to provide a valve operation confirmation mechanism that is free from malfunctions due to fluid leakage or sticking.
［課題を解決するための手段］
上記課題を解決するため、本考案は、複数のポ
ート及びこれらのポートを連通させる流路中の弁
座を有する弁部と、上記弁座を開閉する弁体を駆
動する駆動部とを備えた弁において、上記弁部
を、電気絶縁性の素材で形成するとともに、弁部
に設けた複数の電極の先端を弁座のシール面に露
出させ、上記弁体を導電性弾性体で形成したこと
を特徴としている。[Means for Solving the Problems] In order to solve the above problems, the present invention provides a valve portion having a plurality of ports and a valve seat in a flow path that communicates these ports, and a valve body that opens and closes the valve seat. In the valve, the valve part is formed of an electrically insulating material, and the tips of the plurality of electrodes provided on the valve part are exposed on the sealing surface of the valve seat, and the valve part is made of an electrically insulating material. It is characterized by being made of a conductive elastic material.
また、同様の課題を解決するため、複数の電極
の電気的接続により動作する表示機構を設けると
よい。 Further, in order to solve the same problem, it is preferable to provide a display mechanism that operates by electrically connecting a plurality of electrodes.
［作用］
弁体が弁座を閉鎖しているときは、先端が弁座
のシール面に露出している複数の電極が、導電性
弾性体の弁体によつて電気的に接続し、弁体が弁
座を開放すると、複数の電極間が電気的に絶縁す
る。したがつて、電極によつて弁の開閉動作を確
認することができる。[Operation] When the valve body closes the valve seat, the plurality of electrodes whose tips are exposed to the sealing surface of the valve seat are electrically connected by the valve body made of conductive elastic material, and the valve body closes the valve seat. When the body opens the valve seat, there is electrical isolation between the plurality of electrodes. Therefore, the opening and closing operations of the valve can be confirmed using the electrodes.
この場合、複数の電極は弁部に固定されて摺動
しないので、シール不良による流体のリークや、
摺動部の固着による動作不良を確実に防止するこ
とができる。 In this case, the multiple electrodes are fixed to the valve part and do not slide, resulting in fluid leakage due to poor sealing,
Malfunctions due to sticking of the sliding part can be reliably prevented.
また、電極の電気的接続により動作する表示機
構を設けると、弁の動作不良を視認することがで
きる。 Further, if a display mechanism operated by electrical connection of the electrodes is provided, malfunction of the valve can be visually recognized.
［実施例］
第１図ないし第３図は本考案の第１実施例を示
し、この２ポート電磁弁は、弁部１１、電磁部１
２、及び後記する動作確認機構１３を備え、弁部
１１と電磁部１２は、電磁部１２に固着した取付
金具１４を弁部１１に螺着させることにより、一
体に連結されている。[Embodiment] Figures 1 to 3 show a first embodiment of the present invention, and this 2-port solenoid valve has a valve part 11, an electromagnetic part 1
The valve part 11 and the electromagnetic part 12 are integrally connected by screwing a mounting fitting 14 fixed to the electromagnetic part 12 onto the valve part 11.
上記弁部１１は、合成樹脂等の電気絶縁性の素
材で形成され、入力ポートＰと出力ポートＡ、及
びこれらのポートを連通させる流路中の弁座１６
を備え、一対の電極１７，１７が、モールドによ
つて気密にかつ一体に埋設されている。 The valve portion 11 is made of an electrically insulating material such as synthetic resin, and has an input port P, an output port A, and a valve seat 16 in a flow path that communicates these ports.
A pair of electrodes 17, 17 are embedded airtightly and integrally with a mold.
電磁部１２は、励磁コイル１９を巻回したボビ
ン２０に磁気枠２１を装着し、ボビン２０と磁気
枠２１の中心孔に非磁性体よりなる案内管２２を
嵌着し、案内管２２の一端に固定鉄心２３が固定
されている。上記案内管２２に沿つて摺動する可
動鉄心２４は、先端に上記弁座１６を開閉する弁
体２５を備え、固定鉄心２３との間に縮設した復
帰ばね２６によつて、弁座１６の閉鎖方向にに付
勢されている。 The electromagnetic section 12 includes a magnetic frame 21 mounted on a bobbin 20 around which an excitation coil 19 is wound, a guide tube 22 made of a non-magnetic material fitted into the center hole of the bobbin 20 and the magnetic frame 21, and one end of the guide tube 22. A fixed iron core 23 is fixed to. The movable core 24 that slides along the guide tube 22 has a valve body 25 at its tip that opens and closes the valve seat 16, and a return spring 26 that is compressed between the movable core 24 and the fixed core 23 allows the valve seat 16 to open and close. is biased in the closing direction.
上記電極１７，１７は、一端が弁座１６のシー
ル面から僅かに突出するとともに（第３図参照）、
他端が弁部１１の外部に突出し、弁体２５は、ゴ
ムの中にカーボンブラツクや金属粉末等の導電性
フイラーを分散させた。100〜104Ω・cmの体積固
有抵抗を有する導電性ゴム等の導電性弾性体で形
成され、これらあの電極１７，１７と弁体２５に
よつて、上記動作確認機構１３が構成される。 The electrodes 17, 17 have one end slightly protruding from the sealing surface of the valve seat 16 (see FIG. 3),
The other end protrudes to the outside of the valve portion 11, and the valve body 25 has a conductive filler such as carbon black or metal powder dispersed in rubber. It is made of a conductive elastic material such as conductive rubber having a volume resistivity of 10 0 to 10 4 Ω·cm, and these electrodes 17, 17 and the valve body 25 constitute the operation confirmation mechanism 13. .
次に、上記第１実施例の動作を述べる。 Next, the operation of the first embodiment will be described.
第１図及び第２図は、電磁部１２に非通電の状
態を示し、弁体２５は復帰ばね２６の付勢力によ
り弁座１６を閉鎖して、ポートＰとＡ間の流路が
遮断されている。 1 and 2 show a state in which the electromagnetic section 12 is not energized, and the valve body 25 closes the valve seat 16 by the biasing force of the return spring 26, so that the flow path between ports P and A is blocked. ing.
この状態においては、導電性弾性体よりなる弁
体２５が、弁座１６のシール面から僅かに突出し
ている電極１７，１７の先端に圧接しているの
で、電極１７，１７は、弁体２５を介して電気的
に接続している。 In this state, the valve body 25 made of a conductive elastic body is in pressure contact with the tips of the electrodes 17, 17 that slightly protrude from the sealing surface of the valve seat 16, so that the electrodes 17, 17 are in contact with the valve body 25. electrically connected via.
励磁コイル１９に通電すると、固定鉄心２３が
復帰ばね２６の付勢力に抗して可動鉄心２４を吸
引して、弁体２５が弁座１６を開放するので、ポ
ートＰとＡ間の流路が連通して圧縮空気が入力ポ
ートＰから出力ポートＡに流出し、同時に電極１
７，１７間が電気的に絶縁する。 When the excitation coil 19 is energized, the fixed core 23 attracts the movable core 24 against the urging force of the return spring 26, and the valve body 25 opens the valve seat 16, so that the flow path between ports P and A is closed. The compressed air flows out from the input port P to the output port A, and at the same time the electrode 1
7 and 17 are electrically insulated.
したがつて、電極１７，１７によつて、弁体２
５による弁座１６の開閉動作を確認することがで
きる。 Therefore, by the electrodes 17, 17, the valve body 2
5 can be confirmed to open and close the valve seat 16.
上記動作確認機構１３は、弁部１１や電磁部１
２を貫通する摺動部分がないので、シール不良
や、固着による動作不良を確実に防止することが
できる。 The operation confirmation mechanism 13 includes the valve section 11 and the electromagnetic section 1.
Since there is no sliding part that penetrates through 2, it is possible to reliably prevent seal failures and malfunctions due to sticking.
また、弁部１１のモールド時に複数の電極１
７，１７を取付けることができるので、動作確認
機構１３の構成が極めて簡単である。 Moreover, when molding the valve part 11, a plurality of electrodes 1
7 and 17, the configuration of the operation confirmation mechanism 13 is extremely simple.
さらに、別個にスイツチを設ける必要がないの
で、弁全体を小形にすることができる。 Furthermore, since there is no need to provide a separate switch, the entire valve can be made smaller.
第４図は、動作確認機構１３によつて表示灯
（発光ダイオード）３１を点灯させる表示機構３
０を有する本考案の第２実施例を示し、動作確認
機構１３と抵抗器Ｒ、並びに抵抗器ｒ、表示灯３
１及びトランジスタＴが、それぞれ直列に接続さ
れ、トランジスタＴのベースは動作機構１３に接
続されている。 FIG. 4 shows a display mechanism 3 that lights up an indicator light (light emitting diode) 31 by an operation confirmation mechanism 13.
0, the operation confirmation mechanism 13, the resistor R, the resistor r, and the indicator light 3 are shown.
1 and a transistor T are each connected in series, and the base of the transistor T is connected to the operating mechanism 13.
上記第２実施例は、弁体２５が弁座１６を閉鎖
するし、動作確認機構１３によつて表示灯３１が
点灯し、弁体２５が弁座１６を開放すると、動作
確認機構によつて表示灯が３１が消灯するので、
弁の開閉動作を視覚によつて確認することができ
る。 In the second embodiment, the valve body 25 closes the valve seat 16, the indicator light 31 is turned on by the operation confirmation mechanism 13, and when the valve body 25 opens the valve seat 16, the operation confirmation mechanism closes the valve seat 16. As the indicator light 31 goes out,
The opening and closing operations of the valve can be visually confirmed.
なお、上記実施例は電磁弁であるが、本考案の
弁は電磁弁に限定されるものではなく、パイロツ
ト流体圧等によつて弁体を駆動するものでもよ
い。 Although the above embodiment is a solenoid valve, the valve of the present invention is not limited to a solenoid valve, and may be one in which the valve body is driven by pilot fluid pressure or the like.
［考案の効果］
本考案における弁の動作確認機構は、先端が弁
座のシール面に露出する複数の電極と、導電性弾
性体よりなる弁体とで構成したことにより、動作
確認機構に弁部及び駆動部を貫通する摺動部がな
いので、弁の開閉動作を確認できるものでありな
がら、流体のリークや確認機構の動作不良を確実
に防止することができる。[Effects of the invention] The valve operation confirmation mechanism of the present invention is composed of a plurality of electrodes whose tips are exposed to the sealing surface of the valve seat and a valve body made of a conductive elastic material. Since there is no sliding part that penetrates the drive part and the drive part, it is possible to check the opening and closing operation of the valve, and it is also possible to reliably prevent fluid leaks and malfunctions of the checking mechanism.
また、弁部に複数の電極を設けるのみでよいの
で、構成が簡単であり、しかも別個にスイツチを
取付ける必要がないので、弁を小形にすることが
できる。 Further, since it is only necessary to provide a plurality of electrodes on the valve portion, the structure is simple, and since there is no need to separately attach a switch, the valve can be made compact.
さらに、複数の電極の電気的接続によつて動作
する表示機構を設けたので、弁の開閉動作を視認
することができる。 Furthermore, since a display mechanism operated by electrical connection of a plurality of electrodes is provided, the opening/closing operation of the valve can be visually confirmed.
第１図は第２図のＡ−Ａ断面図、第２図は本考
案の第１実施例の縦断正面図、第３図は第１図の
要部拡大図、第４図は表示機構の一例を示す回路
図、第５図は公知の動作確認機構の縦断正面図で
ある。
１１……弁部、１２……電磁部、１６……弁
座、１７……電極、２５……弁体、Ｐ，Ａ……ポ
ート。
Fig. 1 is a sectional view taken along line A-A in Fig. 2, Fig. 2 is a longitudinal sectional front view of the first embodiment of the present invention, Fig. 3 is an enlarged view of the main parts of Fig. 1, and Fig. 4 is a view of the display mechanism. FIG. 5, a circuit diagram showing an example, is a longitudinal sectional front view of a known operation confirmation mechanism. DESCRIPTION OF SYMBOLS 11... Valve part, 12... Electromagnetic part, 16... Valve seat, 17... Electrode, 25... Valve body, P, A... Port.
Claims (1)
る流路中の弁座を有する弁部と、上記弁座を開
閉する弁体を駆動する駆動部とを備えた弁にお
いて、 上記弁部を、電気絶縁性の素材で形成すると
ともに、弁部に設けた複数の電極の先端を弁座
のシール面に露出させ、 上記弁体を導電性弾性体で形成した、 ことを特徴とする弁の動作確認機構。 ２ 複数の電極の電気的接続により動作する表示
機構を設けた、 ことを特徴とする請求項１に記載した弁の動作
確認機構。[Claims for Utility Model Registration] 1. A valve comprising a valve part having a plurality of ports and a valve seat in a flow path that communicates these ports, and a driving part that drives a valve element that opens and closes the valve seat. , the valve portion is formed of an electrically insulating material, the tips of the plurality of electrodes provided on the valve portion are exposed on the sealing surface of the valve seat, and the valve body is formed of a conductive elastic material. Features a valve operation confirmation mechanism. 2. The valve operation confirmation mechanism according to claim 1, further comprising a display mechanism operated by electrical connection of a plurality of electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6152289U JPH0443659Y2 (en) | 1989-05-26 | 1989-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6152289U JPH0443659Y2 (en) | 1989-05-26 | 1989-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03383U JPH03383U (en) | 1991-01-07 |
| JPH0443659Y2 true JPH0443659Y2 (en) | 1992-10-15 |
Family
ID=31589843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6152289U Expired JPH0443659Y2 (en) | 1989-05-26 | 1989-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443659Y2 (en) |
-
1989
- 1989-05-26 JP JP6152289U patent/JPH0443659Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03383U (en) | 1991-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4341241A (en) | Position indicating valve means | |
| US5032812A (en) | Solenoid actuator having a magnetic flux sensor | |
| US4534381A (en) | Electromagnetic valve | |
| US4610428A (en) | Hermetically sealed electromagnetic solenoid valve | |
| US4251051A (en) | Solenoid structure having a relatively unrestrained generally flat armature member | |
| US20170254435A1 (en) | Solenoid valve | |
| US4130745A (en) | Differential pressure threshold detector | |
| US4107492A (en) | Pneumatic operated switch having movable flag, switch actuator mounted thereon, and switch in chamber displaced from measured flow path | |
| CN101225888A (en) | A Bistable Pulse Solenoid Valve and Its Driving Circuit | |
| JPH10196488A (en) | Electromagnetic fuel injection valve | |
| CN108868959B (en) | A fault detection device for a solenoid valve and an oil pan for an engine | |
| JPH0443659Y2 (en) | ||
| US4283040A (en) | Pressure operated pilot control shut-off valve | |
| US4114852A (en) | Miniature reed-type valve | |
| US4832313A (en) | Solenoid valve | |
| JPS6327227B2 (en) | ||
| JP2025010288A (en) | Solenoid valve | |
| JPS6256679A (en) | Solenoid controlled valve | |
| KR0170176B1 (en) | Safety valve of combustion device | |
| CN219796110U (en) | Pulse type gas emergency cut-off valve | |
| JP2001200949A (en) | Solenoid valve | |
| JP2530857B2 (en) | Shut-off valve unit with nozzle | |
| JP2587537Y2 (en) | solenoid valve | |
| JPH0616172Y2 (en) | Grounding structure of electromagnetic actuator | |
| JPH03172694A (en) | Valve opening closing detecting device for solenoid valve |