JPH0213198B2 - - Google Patents
Info
- Publication number
- JPH0213198B2 JPH0213198B2 JP58099686A JP9968683A JPH0213198B2 JP H0213198 B2 JPH0213198 B2 JP H0213198B2 JP 58099686 A JP58099686 A JP 58099686A JP 9968683 A JP9968683 A JP 9968683A JP H0213198 B2 JPH0213198 B2 JP H0213198B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- flow path
- container
- fluid
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Description
【発明の詳細な説明】
本発明は、空油圧等の流体装置に使用する流路
開閉弁に関連し、大口径の弁に対して比較的小さ
な作用力での制御を可能としたり、あるいは弁の
開閉動作を円滑に行なうことを容易にしたりする
弁構造の改良に関するもので、特に高圧流体路の
開閉弁に適用するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flow path opening/closing valve used in a fluid device such as a pneumatic hydraulic system, and is capable of controlling a large diameter valve with a relatively small acting force. This invention relates to improvements in valve structures that facilitate smooth opening and closing operations, and is particularly applicable to on-off valves for high-pressure fluid paths.
第１図は、従来の流路開閉弁を示す断面図であ
る。同図において１は弁体であり２は弁体１を支
え、流路３から４を形成する容器である。また、
流体路３から４は、弁体１と容器２に形成される
シール座５により任意に連通または閉止される。 FIG. 1 is a sectional view showing a conventional flow path opening/closing valve. In the figure, 1 is a valve body, and 2 is a container that supports the valve body 1 and forms channels 3 to 4. Also,
The fluid passages 3 to 4 are arbitrarily communicated or closed by a seal seat 5 formed on the valve body 1 and the container 2.
このような構造をもつ流路開閉弁に於て、その
動作は、弁体１の面積S1面に作用する流体圧力Ｐ
や、他端面、面積S2面に作用する弁体シール力
F1を変化させることにより流体路３から４を開
閉することが可能となる。すなわち、弁体１の上
方向に働く力Ｆ＝S1Pが弁体シール力F1との間
に、Ｆ〉F1なる関係を満たす時、弁体１は上方
向にストロークＬだけ移動する為流路３から４は
連通し、流体路が形成される。一方、Ｆ〈F1なる
関係が存在する場合には、弁体１は、シール座５
に押圧され流路３から４を閉止する。 In a flow path opening/closing valve having such a structure, its operation is based on the area S of the valve body 1 and the fluid pressure P acting on one surface.
, the other end face, and the valve body sealing force acting on the area S 2 surface
By changing F 1 , it becomes possible to open and close the fluid paths 3 to 4. In other words, when the force F=S 1 P acting upward on the valve body 1 and the valve sealing force F 1 satisfy the relationship F>F 1 , the valve body 1 moves upward by a stroke L. The flow paths 3 and 4 communicate with each other to form a fluid path. On the other hand, if the relationship F<F 1 exists, the valve body 1
is pressed to close flow paths 3 and 4.
このような構造を有しおよび動作を行う従来の
流路開閉弁においては、流体路３から４に多量な
流体を流す場合、弁体１の弁座径や弁体のストロ
ークＬを大きくすることにより対拠しているが、
弁体の大型化に伴い弁動作を円滑に行うことがで
きなくなつたり、あるいはシール力F1が大きく
なつたりする問題が生じ開閉弁の設計が困難とな
る場合が起きる。特にこの傾向は近年の流体圧の
高圧化に伴い顕著となつてきている。 In a conventional flow path opening/closing valve that has such a structure and operates, when a large amount of fluid flows from the fluid paths 3 to 4, the valve seat diameter of the valve body 1 and the stroke L of the valve body must be increased. Although it is countered by
As the size of the valve body increases, problems arise in that the valve cannot operate smoothly or the sealing force F 1 increases, making it difficult to design an on-off valve. In particular, this tendency has become remarkable as fluid pressure has become higher in recent years.
本発明はこの様な事情に鑑みてなされたもの
で、大口径の弁に対してその制御を小さな作用力
で可能とし、又、弁動作も円滑に行うことが可能
な流路開閉弁を提供することにある。 The present invention has been made in view of the above circumstances, and provides a flow path opening/closing valve that can control a large-diameter valve with a small acting force and also allows smooth valve operation. It's about doing.
以下、本発明の実施例を図により説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第２図は本発明の基本原理を示す断面図であ
り、同図において１〜５及びS1，S2，Ｌは、第１
図における従来形の流路開閉弁と同様である。６
は本発明の意図する弁動作に無関係な固定物であ
り断面積S3，S4をもつ。 FIG. 2 is a sectional view showing the basic principle of the present invention, and in the same figure, 1 to 5 and S 1 , S 2 , L are the first
This is the same as the conventional flow path opening/closing valve shown in the figure. 6
are fixed objects unrelated to the valve operation intended by the present invention, and have cross-sectional areas S 3 and S 4 .
図においては固定物が２つ設けてあるが、固定
物の数はこの限りでなく、その形状も任意でよ
い。 Although two fixed objects are provided in the figure, the number of fixed objects is not limited to this, and the shape of the fixed objects may be arbitrary.
この様に構成された流路開閉弁においては弁体
１の開動作時の開口面積は第１図の従来形と同じ
であるのに対し、弁体１の閉状態におけるシール
座５に押圧するシール力F2は、F2＝（S1−（S3＋
S4））Ｐ以上の値であれば良く従来形の作用力F1
＝S1Pと比較すると、△Ｆ＝F1−F2＝（S3＋S4）
Ｐ分だけ小さな作用力により弁の開閉動作を制御
することが可能になる。 In the flow path opening/closing valve configured in this way, the opening area of the valve body 1 during the opening operation is the same as that of the conventional type shown in FIG. The sealing force F 2 is F 2 = (S 1 − (S 3 +
S 4 )) A value greater than or equal to P is sufficient as the conventional acting force F 1
=S 1 Compared to P, △F=F 1 −F 2 = (S 3 +S 4 )
It becomes possible to control the opening/closing operation of the valve with a smaller acting force by P.
第３図は、第２図におけるシール力F2の制御
を切換弁７によりシール力作用面の流体圧力を高
圧PHあるいは低圧PLと連通することにより行う
形のものである。これは、第２図で説明したと同
様の効果をもつほかに、弁動作の開閉に伴うシー
ル力F2作用面での流体の流入あるいは流出量を
従来形のものに比較して、△Ｑ＝（S3＋S4）Ｌ分
だけ減少させることができ、弁動作を円滑に行う
ことが可能とする効果もあわせもつ。 In FIG. 3, the sealing force F2 in FIG. 2 is controlled by communicating the fluid pressure on the sealing force acting surface with the high pressure P H or the low pressure P L using the switching valve 7. In addition to having the same effect as explained in Fig. 2, this has the effect of reducing the inflow or outflow amount of fluid at the sealing force F2 action surface due to opening and closing of the valve operation compared to the conventional type. =(S 3 +S 4 )L can be reduced, and it also has the effect of making it possible to smoothly operate the valve.
第４図は、弁体１として円筒形状弁を用い、そ
の同軸内部に固定物６を１つ設けた流路開閉弁の
他の実施例である。この様な構成の流路開閉弁に
おいては、その構成及び構造が簡易となり本発明
の意図を容易に達成できる利点をもつ。 FIG. 4 shows another embodiment of a flow path opening/closing valve in which a cylindrical valve is used as the valve body 1 and one fixed object 6 is provided coaxially inside the cylindrical valve. The flow path opening/closing valve having such a configuration has the advantage that its configuration and structure are simple and the intention of the present invention can be easily achieved.
また、第４図において弁体１と固定物６の間に
一定のスキマＨを設けることにより、弁一端面か
ら他端面に流体路を設け、流路３の圧力Ｐと切換
弁７によつて選択可能な圧力PHあるいはPLと感
応させることができ弁の機能や動作を種々の形で
制御することが可能な構造となる。 In addition, by providing a certain clearance H between the valve body 1 and the fixed object 6 in FIG. The structure can be made sensitive to selectable pressure P H or P L , and the function and operation of the valve can be controlled in various ways.
この発明は以上説明したとおり、流路開閉弁の
弁体内部に弁動作に無関係な固定物を設ける簡単
な構造で、弁動作の開閉を制御する作用力を小さ
くしたり、弁動作の開閉を円滑に行うことができ
る。 As explained above, this invention has a simple structure in which a fixed object unrelated to valve operation is provided inside the valve body of a flow path opening/closing valve. It can be done smoothly.
第１図は、従来の流路開閉弁を示す断面図、第
２図及び第３図は本発明の基本原理を示す断面
図、第４図は本発明の実施例を示す断面図であ
る。
図において、１は弁体、２は容器、３及び４は
流体路、６は弁体内部の固定物である。
FIG. 1 is a sectional view showing a conventional flow path opening/closing valve, FIGS. 2 and 3 are sectional views showing the basic principle of the present invention, and FIG. 4 is a sectional view showing an embodiment of the present invention. In the figure, 1 is a valve body, 2 is a container, 3 and 4 are fluid paths, and 6 is a fixed object inside the valve body.
Claims (1)
一端面側で前記容器を貫く流体流路中の弁座開口
を開閉可能にすると共に前記弁体の他面側にて前
記容器内に圧力室を形成し、該圧力室内の流体圧
力を外部制御することにより前記弁体の摺動を行
わせて前記弁座開口の開閉を行うようにした流路
開閉弁において、 前記弁体の両端面間を前記摺動方向に沿つて貫
通する貫通穴と、 前記容器の前記圧力室内の内壁面から延びて前
記弁体の前記貫通穴に挿し通された固定物、 とを備えたことを特徴とする流路開閉弁。[Scope of Claims] 1. A valve body is slidably arranged in a container so that a valve seat opening in a fluid flow path passing through the container can be opened and closed on one end surface side of the valve body, and the valve body is slidably disposed in a container. A flow path in which a pressure chamber is formed in the container on the other side, and the fluid pressure in the pressure chamber is externally controlled to cause the valve body to slide and open and close the valve seat opening. In the on-off valve, a through hole passing through between both end faces of the valve body along the sliding direction; and a fixing member extending from an inner wall surface in the pressure chamber of the container and inserted into the through hole of the valve body. A flow path opening/closing valve comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9968683A JPS59226783A (en) | 1983-06-03 | 1983-06-03 | Flow passage opening and closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9968683A JPS59226783A (en) | 1983-06-03 | 1983-06-03 | Flow passage opening and closing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59226783A JPS59226783A (en) | 1984-12-19 |
| JPH0213198B2 true JPH0213198B2 (en) | 1990-04-03 |
Family
ID=14253918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9968683A Granted JPS59226783A (en) | 1983-06-03 | 1983-06-03 | Flow passage opening and closing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59226783A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6113819Y2 (en) * | 1978-10-20 | 1986-04-28 |
-
1983
- 1983-06-03 JP JP9968683A patent/JPS59226783A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59226783A (en) | 1984-12-19 |
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