JPH0325482Y2 - - Google Patents
Info
- Publication number
- JPH0325482Y2 JPH0325482Y2 JP3044886U JP3044886U JPH0325482Y2 JP H0325482 Y2 JPH0325482 Y2 JP H0325482Y2 JP 3044886 U JP3044886 U JP 3044886U JP 3044886 U JP3044886 U JP 3044886U JP H0325482 Y2 JPH0325482 Y2 JP H0325482Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- main valve
- pilot
- pilot valve
- coil 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
Links
- 239000012530 fluid Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は流路を開閉する主弁体の背室に入口側
流体を導入蓄積し或いはこれより出口側へ放出す
る動作を電磁駆動のパイロツト弁で行なうことに
より主弁体に開閉動作を行なわせるパイロツト式
電磁弁に関するものであつて、各種流体用機器、
配管に使用される。[Detailed description of the invention] Industrial application field This invention uses an electromagnetically driven pilot valve to introduce and accumulate fluid on the inlet side into the back chamber of the main valve body that opens and closes the flow path, and to discharge it from there to the outlet side. This relates to pilot type solenoid valves that open and close the main valve body by
Used for piping.
従来技術とその問題点
流体の入口および出口の間に主弁の主弁座を形
成し、この主弁座と協働して流路を開閉する主弁
体にパイロツト弁のパイロツト弁座を設けて電磁
石のプランジヤに設けたパイロツト弁体によりパ
イロツト弁口を開閉することによつて主弁体の背
室を出口側と連通または遮断し、このパイロツト
弁の開閉により入口側流体を背室から出口側へ放
出しまたはここに導入蓄積して主弁の開閉を行な
わせる形式のパイロツト式電磁弁において、入口
側と出口側との差圧力が小さくても主弁を確実に
開弁させることができるように、パイロツト弁体
と主弁体(パイロツト弁座)とをコイルばねで連
結することが、例えば米国特許第3208716号明細
書、実開昭58−187676号公報に提案されている。Prior art and its problems A main valve seat of the main valve is formed between the inlet and outlet of the fluid, and the pilot valve seat of the pilot valve is provided on the main valve body that cooperates with the main valve seat to open and close the flow path. By opening and closing the pilot valve port using the pilot valve body provided on the plunger of the electromagnet, the back chamber of the main valve body is communicated with or disconnected from the outlet side, and by opening and closing this pilot valve, the fluid on the inlet side is communicated with the outlet side from the back chamber. In a pilot-type solenoid valve that opens and closes the main valve by releasing it to the side or introducing and accumulating it here, the main valve can be opened reliably even if the differential pressure between the inlet side and the outlet side is small. It has been proposed, for example, in U.S. Pat. No. 3,208,716 and U.S. Pat.
しかしながら、これらにおいてはコイルばねの
両端をパイロツト弁体側および対向する主弁体側
に設けたフランジに係合させたものであり、係合
装着時にコイルばねの両端を拡げるなどしてフラ
ンジをくぐらせねばならないので特別な工具を必
要とし面倒である。また、特に実開昭58−187676
号公報のものは図面で判るようにコイルばねが締
りばね構造であるので、パイロツト弁の開弁時に
背室からパイロツト弁口へ流体が流れる際に流れ
の邪魔となつて主弁に速やかな開弁を行なわせる
ことができないという欠点があり、コイルばねの
ピツチを拡げて流れの抵抗を少なくするにはパイ
ロツト弁体の揚程を大きくしなければならないと
いう問題がある。 However, in these systems, both ends of the coil spring are engaged with flanges provided on the pilot valve body side and the opposing main valve body side, and when the coil spring is engaged, the both ends of the coil spring must be expanded or passed through the flanges. This requires special tools and is troublesome. Also, especially Utsukai Showa 58-187676
As can be seen in the drawing, the coil spring in the publication has a tight spring structure, so when the pilot valve is opened, when the fluid flows from the back chamber to the pilot valve port, it becomes an obstruction to the flow and prevents the main valve from opening quickly. There is a disadvantage that the valve cannot be operated, and there is a problem that the lift height of the pilot valve body must be increased in order to widen the pitch of the coil spring and reduce the flow resistance.
考案の目的
本考案はパイロツト弁体と主弁体とがコイルば
ねで連結されているパイロツト式電磁弁がもつ前
述のような問題点を解決し、コイルばねを特別な
工具を必要としないできわめて簡単に係合装着し
或いは離脱させることができるとともにパイロツ
ト弁の開弁時に小さい揚程で流れの抵抗が小さい
パイロツト式電磁弁を提供することを目的として
いる。Purpose of the invention The present invention solves the above-mentioned problems of pilot-type solenoid valves in which the pilot valve body and the main valve body are connected by a coil spring, and allows the coil spring to be easily connected without the need for special tools. It is an object of the present invention to provide a pilot type solenoid valve that can be easily engaged and disengaged, and has a small lift and low flow resistance when the pilot valve is opened.
考案の構成
本考案は、流体の入口および出口との間に形成
された主弁座と、前記流体の入口と出口とを前記
主弁座と協働して連通または遮断する主弁体と、
この主弁体に設けられたパイロツト弁座と、前記
主弁体の背部に形成され前記流体の入口側と連通
している背室と前記流体の出口側とを前記パイロ
ツト弁座と協働して連通または遮断するため電磁
石のプランジヤに設けられたパイロツト弁体とを
具え、前記パイロツト弁体と主弁体とがコイルば
ねにより連結されているパイロツト式電磁弁にお
いて;前記コイルばねは両端部分が締りばね構造
であるとともに中間部分が開きばね構造であり、
且つ前記主弁体およびパイロツト弁体は対向部分
に前記コイルばねの両端部分の内径およびピツチ
よりも大きい山径およびピツチのねじが形成さ
れ、前記両端部分が前記ねじにねじ込まれて結合
されている構成とした。Composition of the Invention The present invention includes: a main valve seat formed between a fluid inlet and an outlet; a main valve body that cooperates with the main valve seat to communicate or block communication between the fluid inlet and the outlet;
A pilot valve seat provided on the main valve body, a back chamber formed at the back of the main valve body and communicating with the fluid inlet side, and a fluid outlet side cooperate with the pilot valve seat. A pilot type solenoid valve is provided with a pilot valve body provided on a plunger of an electromagnet for communicating or cutting off communication, and the pilot valve body and the main valve body are connected by a coil spring; It has a tight spring structure and an open spring structure in the middle,
Further, the main valve body and the pilot valve body are formed with threads having a diameter and a pitch larger than the inner diameter and pitch of both end portions of the coil spring at opposing portions, and the both end portions are screwed into the threads to be connected. The structure is as follows.
実施例
本考案の実施例を図面に基いて説明すると、第
1図において1は主弁、2はパイロツト弁、3は
電磁石を示しており、主弁1は流体の入口4およ
び出口5を有しそれらの間に主弁座6を形成した
弁本体7と、ダイヤフラム8およびダイヤフラム
受9からなる主弁体10とを有しており、ダイヤ
フラム8が主弁座6に接触し着座したとき入口4
と出口5とが遮断される。ダイヤフラム8の周縁
部は弁本体7とその上に重ねたふた11との間に
挟み固定され、この主弁体10とふたとに囲まれ
た空間によつて形成された背室12はダイヤフラ
ム受9が緩く嵌込まれているとともにダイヤフラ
ム8に設けた導入口13およびダイヤフラム受9
の周縁との隙間によつて入口4と常時連通してい
る。Embodiment An embodiment of the present invention will be explained based on the drawings. In FIG. 1, 1 is a main valve, 2 is a pilot valve, and 3 is an electromagnet. The main valve 1 has an inlet 4 and an outlet 5 for fluid. It has a valve body 7 with a main valve seat 6 formed therebetween, and a main valve element 10 consisting of a diaphragm 8 and a diaphragm receiver 9. When the diaphragm 8 contacts and seats on the main valve seat 6, the inlet is closed. 4
and exit 5 are blocked. The peripheral edge of the diaphragm 8 is sandwiched and fixed between the valve body 7 and the lid 11 stacked on it, and the back chamber 12 formed by the space surrounded by the main valve body 10 and the lid serves as a diaphragm receiver. 9 is loosely fitted into the inlet 13 provided in the diaphragm 8 and the diaphragm receiver 9.
It is constantly in communication with the inlet 4 through a gap with the periphery of the inlet.
パイロツト弁2は主弁体10の中心部に固着さ
れたパイロツト弁座14と電磁石3のプランジヤ
24に装着されたパイロツト弁体15とを有して
おり、パイロツト弁体15がパイロツト弁座14
に着座したときパイロツト弁口16を閉塞して背
室12と出口5側とが遮断される。尚、パイロツ
ト弁体15はプランジヤ24にばね17によつて
弾性的に装着されており、またパイロツト弁座1
4に円筒状の案内18が固着されていてふた11
の背室12の上方へ延びる筒部19の支持部片2
0によつて傾かないようになつている。 The pilot valve 2 has a pilot valve seat 14 fixed to the center of the main valve body 10 and a pilot valve body 15 attached to the plunger 24 of the electromagnet 3.
When seated, the pilot valve port 16 is closed and the back chamber 12 and the outlet 5 side are cut off. The pilot valve body 15 is elastically attached to the plunger 24 by a spring 17, and the pilot valve seat 1
A cylindrical guide 18 is fixed to the lid 11.
Support piece 2 of the cylindrical part 19 extending upward of the back chamber 12 of
It is set to 0 so that it does not tilt.
電磁石3はふた11に載せられたコイルケース
21に内蔵されている電磁コイル22と、その中
心の案内筒23に嵌装されたプランジヤ24と、
戻しばね25とを有しており、電磁コイル22へ
の電流を断つて消磁したときプランジヤ24が下
降してパイロツト弁2を閉弁し、通電して励磁し
たときプランジヤ24が上昇してパイロツト弁2
を開弁する。 The electromagnet 3 includes an electromagnetic coil 22 built in a coil case 21 placed on the lid 11, a plunger 24 fitted in a guide tube 23 at the center thereof,
When the current to the electromagnetic coil 22 is cut off and demagnetized, the plunger 24 descends and closes the pilot valve 2. When the electromagnetic coil 22 is energized and energized, the plunger 24 rises and closes the pilot valve 2. 2
Open the door.
パイロツト弁2が閉弁したとき入口4の流体が
導入口13からダイヤフラム受9の周囲を通つて
背室11に導入され、更に案内18の周囲を経て
パイロツト弁体15の附近に達する。主弁体10
は背室11の流体圧力に自重、戻しばね25の弾
性力、プランジヤ24およびパイロツト弁体15
の重量が加わつて下降し主弁座6に着座するので
ある。また、パイロツト弁2が開弁したとき背室
11の流体が出口5側へ放出され、主弁体10は
ダイヤフラム8に作用する入口4側と出口5側と
の差圧力および後述する連結用のコイルばね26
の弾性力によつて上昇し主弁座6から離れ入口4
と出口5とを連通するのである。 When the pilot valve 2 is closed, the fluid in the inlet 4 is introduced into the back chamber 11 from the inlet 13 through the diaphragm receiver 9, and further passes around the guide 18 to reach the vicinity of the pilot valve body 15. Main valve body 10
are the fluid pressure in the back chamber 11, its own weight, the elastic force of the return spring 25, the plunger 24 and the pilot valve body 15.
The weight of the main valve seat 6 is added to the main valve seat 6, causing it to descend and sit on the main valve seat 6. Furthermore, when the pilot valve 2 is opened, the fluid in the back chamber 11 is released to the outlet 5 side, and the main valve body 10 controls the differential pressure between the inlet 4 side and the outlet 5 side that acts on the diaphragm 8, and the connection coil spring 26
due to the elastic force of the inlet 4 and away from the main valve seat 6.
and the exit 5 are communicated with each other.
連結用のコイルばね26はパイロツト弁体15
を装着したプランジヤ24と主弁体10に固着さ
れたパイロツト弁座14とに結合されてパイロツ
ト弁体15と主弁体10とを連結している。 The coil spring 26 for connection is connected to the pilot valve body 15.
The pilot valve element 15 and the main valve element 10 are connected to each other by being connected to a plunger 24 equipped with a pilot valve element 15 and a pilot valve seat 14 fixed to the main valve element 10.
コイルばね26は第3図に示すように両端部分
27,28がコイル巻きされた線が互いに接して
いる締りばね構造であるとともに、中間部分29
がコイル巻きされた線が互いに離れている開きば
ね構造となつている。また、同じく第3図に示す
ようにプランジヤ24の下端部外側周面およびパ
イロツト弁座14の上端部外側周面には前記両端
部分27,28の内径およびピツチよりも大きい
山径およびピツチのねじ30,31がそれぞれ形
成されている。このねじ30,31のピツチは両
端部分27,28のピツチの約1.5倍となつてい
る。 As shown in FIG. 3, the coil spring 26 has a tight spring structure in which both end portions 27 and 28 are in contact with coiled wires, and an intermediate portion 29
It has an open spring structure in which the coiled wires are separated from each other. Also, as shown in FIG. 3, the outer circumferential surface of the lower end of the plunger 24 and the outer circumferential surface of the upper end of the pilot valve seat 14 have threads with a thread diameter and pitch larger than the inner diameter and pitch of the end portions 27 and 28. 30 and 31 are formed, respectively. The pitch of the screws 30, 31 is approximately 1.5 times the pitch of the end portions 27, 28.
そして、本実施例では第2図に示すように両端
部分27,28がそれぞれねじ30,31にねじ
込み結合されることによつてパイロツト弁体15
と主弁体10とが連結され、従つてコイルばね2
6は両端部分27,28が引伸ばされてねじ3
0,31に圧着した状態で結合され、且つパイロ
ツト弁体15と主弁体10とを引張つて互いに接
近させるように働く。また、パイロツト弁2の閉
弁時にコイルばね26の中間部分29は圧縮され
ることなく開きばね構造を維持している。このよ
うな構成は、例えば両端部分27,28の一方2
7をプランジヤ24のねじ30にねじ込み、次に
もう一方28をパイロツト弁座14のねじ31に
プランジヤ24を回転させながらねじ込むことに
よつて得られる。 In this embodiment, as shown in FIG.
and the main valve body 10 are connected, so that the coil spring 2
6 has both end portions 27 and 28 stretched and the screw 3
The pilot valve body 15 and the main valve body 10 are connected in a crimped state at 0 and 31, and act to pull the pilot valve body 15 and the main valve body 10 toward each other. Further, when the pilot valve 2 is closed, the intermediate portion 29 of the coil spring 26 is not compressed and maintains an open spring structure. Such a configuration, for example, allows one of the end portions 27 and 28 to
7 into the thread 30 of the plunger 24, and then the other end 28 is threaded into the thread 31 of the pilot valve seat 14 while rotating the plunger 24.
尚、コイルばね26をねじ込むねじ30,31
はパイロツト弁体15および主弁体10に直接設
ける場合があること、および主弁体10はピスト
ンで構成される場合があることは言うまでもな
い。 In addition, the screws 30 and 31 into which the coil spring 26 is screwed
It goes without saying that the valve body 10 may be provided directly on the pilot valve body 15 and the main valve body 10, and that the main valve body 10 may be constituted by a piston.
考案の効果
本考案によると、主弁体とパイロツト弁体との
対向部分に直接または間接にねじを形成し、コイ
ルばねの締りばね構造の両端部分を引伸ばされた
状態でねじにねじ込み結合したので、コイルば
ね、パイロツト弁体、主弁体のいずれかを回転さ
せるとにより図示実施例のように案内がパイロツ
ト弁体を囲んで設けられいても特殊な工具を用い
ることなくきわめて簡単に結合でき或いは反対に
分解できるものであり、且つコイルばねの締りば
ね構造の両端部分が引伸ばされてねじに圧着した
状態でねじ込まれているので緩み或いは外れる心
配なく強固に連結されるのである。また、コイル
ばねの中間部分は開きばね構造であり、パイロツ
ト弁の開弁時にそのピツチが更に拡げられること
によつて背室から出口側へ放出される流体に対す
る抵抗が小さく、従つてパイロツト弁体の揚程を
小さくしても主弁に速やかな開弁を行なわせるこ
とができるものである。Effects of the invention According to the invention, a thread is formed directly or indirectly in the opposing parts of the main valve body and the pilot valve body, and both ends of the tension spring structure of the coil spring are screwed into the screw in a stretched state and connected. Therefore, by rotating either the coil spring, the pilot valve body, or the main valve body, even if the guide is provided surrounding the pilot valve body as in the illustrated embodiment, it can be connected very easily without using any special tools. Or, on the contrary, it can be disassembled, and both ends of the tight spring structure of the coil spring are stretched and screwed onto the screws in a crimped state, so they are firmly connected without worrying about loosening or coming off. In addition, the middle part of the coil spring has an opening spring structure, and when the pilot valve is opened, the pitch is further expanded, so there is little resistance to the fluid discharged from the back chamber to the outlet side. Even if the lift height of the main valve is made small, the main valve can be opened quickly.
第1図は本考案の実施例の縦断面図、第2図は
その拡大部分図、第3図はコイルばねとねじとの
分解断面図である。
1……主弁、2……パイロツト弁、3……電磁
石、4……入口、5……出口、6……弁座、7…
…弁本体、10……主弁体、12……背室、14
……パイロツト弁座、15……パイロツト弁体、
24……プランジヤ、26……コイルばね、2
7,28……両端部分、29……中間部分、3
0,31……ねじ。
FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is an enlarged partial view thereof, and FIG. 3 is an exploded sectional view of a coil spring and a screw. 1... Main valve, 2... Pilot valve, 3... Electromagnet, 4... Inlet, 5... Outlet, 6... Valve seat, 7...
... Valve body, 10 ... Main valve body, 12 ... Back chamber, 14
...Pilot valve seat, 15...Pilot valve body,
24...Plunger, 26...Coil spring, 2
7, 28... Both ends, 29... Middle part, 3
0,31...screw.
Claims (1)
主弁座6と、前記流体の入口4と出口5とを前記
主弁座6と協働して連通または遮断する主弁体1
0と、この主弁体10に設けられたパイロツト弁
座14と、前記主弁体10の背部に形成され前記
流体の入口4側と連通している背室12と前記流
体の出口5側とを前記パイロツト弁座14と協働
して連通または遮断するため電磁石3のプランジ
ヤ24に設けられたパイロツト弁体15とを具
え、前記主弁体10とパイロツト弁体15とがコ
イルばね26により連結されているパイロツト式
電磁弁において; 前記コイルばね26は両端部分27,28が締
りばね構造であるとともに中間部分29が開きば
ね構造であり、且つ前記主弁体10およびパイロ
ツト弁体15は対向部分に前記コイルばね26の
両端部分27,28の内径およびピツチよりも大
きい山径およびピツチのねじ30,31が形成さ
れ、前記両端部分27,28が前記ねじ30,3
1にねじ込まれて結合されているパイロツト式電
磁弁。[Claims for Utility Model Registration] A main valve seat 6 formed between a fluid inlet 4 and an outlet 5, and a fluid inlet 4 and an outlet 5 that cooperate with the main valve seat 6 to communicate or communicate with each other. Main valve body 1 to shut off
0, a pilot valve seat 14 provided on the main valve body 10, a back chamber 12 formed at the back of the main valve body 10 and communicating with the fluid inlet 4 side, and a fluid outlet 5 side. A pilot valve body 15 is provided on the plunger 24 of the electromagnet 3 to cooperate with the pilot valve seat 14 to communicate or cut off the valve, and the main valve body 10 and the pilot valve body 15 are connected by a coil spring 26. In the pilot type solenoid valve, the coil spring 26 has both end portions 27 and 28 of a tight spring structure, and an intermediate portion 29 of an open spring structure, and the main valve body 10 and the pilot valve body 15 have opposing portions. Threads 30, 31 are formed in the inner diameter and pitch of both end portions 27, 28 of the coil spring 26, and the threads 30, 31 have a thread diameter and pitch larger than the inner diameter and pitch of the end portions 27, 28 of the coil spring 26, and the end portions 27, 28 are
A pilot-type solenoid valve that is screwed into and connected to 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3044886U JPH0325482Y2 (en) | 1986-03-03 | 1986-03-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3044886U JPH0325482Y2 (en) | 1986-03-03 | 1986-03-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62141978U JPS62141978U (en) | 1987-09-08 |
JPH0325482Y2 true JPH0325482Y2 (en) | 1991-06-03 |
Family
ID=30835265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3044886U Expired JPH0325482Y2 (en) | 1986-03-03 | 1986-03-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0325482Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007278408A (en) * | 2006-04-07 | 2007-10-25 | Ben:Kk | Solenoid valve with pilot valve |
JP2011038603A (en) * | 2009-08-12 | 2011-02-24 | Yoshitake Inc | Spring for connecting plunger and main valve element in pilot type solenoid valve and connecting structure using the spring |
-
1986
- 1986-03-03 JP JP3044886U patent/JPH0325482Y2/ja not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007278408A (en) * | 2006-04-07 | 2007-10-25 | Ben:Kk | Solenoid valve with pilot valve |
JP2011038603A (en) * | 2009-08-12 | 2011-02-24 | Yoshitake Inc | Spring for connecting plunger and main valve element in pilot type solenoid valve and connecting structure using the spring |
Also Published As
Publication number | Publication date |
---|---|
JPS62141978U (en) | 1987-09-08 |
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