JPS62233571A - Slide valve - Google Patents
Slide valveInfo
- Publication number
- JPS62233571A JPS62233571A JP7496186A JP7496186A JPS62233571A JP S62233571 A JPS62233571 A JP S62233571A JP 7496186 A JP7496186 A JP 7496186A JP 7496186 A JP7496186 A JP 7496186A JP S62233571 A JPS62233571 A JP S62233571A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- seat
- seat surface
- sliding
- 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.)
- Granted
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、シール性を上げるために、流路を開閉する摺
動弁体の上流側シート面に対する弁座を、前記シート面
に対して遠近移動自在に弁箱に設け、前記流路の流体圧
を受けて、前記弁座を閉弁時の前記シート面に圧接する
ための受圧部を、前記弁座に形成してある摺動弁に関す
る。Detailed Description of the Invention [Field of Industrial Application] In order to improve sealing performance, the present invention provides a valve seat for an upstream seat surface of a sliding valve body that opens and closes a flow path, which A sliding valve that is movably provided in a valve box and has a pressure receiving part formed on the valve seat for receiving fluid pressure in the flow path and pressing the valve seat against the seat surface when the valve is closed. Regarding.
従来の上記摺動弁では、シート面及び弁座を、偏平面に
形成してあるだけであった。In the conventional sliding valve, the seat surface and the valve seat are simply formed into flat surfaces.
しかし、閉弁状態では、弁座が受圧部で流体圧を受けて
、シート面に圧接しているために、摺動弁体を開弁しよ
うとした時に、弁座が抵抗となって弁体の摺動操作が困
難になったり、弁体がこじれて動かなくなる危険性があ
った。However, when the valve is closed, the valve seat receives fluid pressure at the pressure receiving part and is in pressure contact with the seat surface, so when the sliding valve body tries to open the valve, the valve seat acts as resistance and the valve body There was a risk that the sliding operation of the valve would become difficult, or that the valve body would become distorted and become stuck.
本発明の目的は、閉弁時のシール性を高く維持しながら
、開弁操作時には、摺動弁体がスムーズに開弁できるよ
うにする点にある。An object of the present invention is to enable a sliding valve body to smoothly open a valve during a valve opening operation while maintaining high sealing performance when the valve is closed.
本発明の摺動弁護の特徴構成は、弁座に凹部を形成し、
開弁初期にｎｉｌ屹凹部と流路を連通させる接続溝を、
シート面に形成してあることにあり、その作用効果は、
次の通りである。The characteristic configuration of the sliding valve of the present invention is that a recess is formed in the valve seat,
A connecting groove that connects the nil recess and the flow path at the initial stage of opening the valve.
It is formed on the sheet surface, and its effects are as follows.
It is as follows.
つまり、摺動弁体を開弁操作すると、開弁初期に弁座に
形成した四部が、シート面に形成してある接続溝によっ
て、流路と連通する之めに、流路の流体圧を凹部が受け
て、弁座をシート面から離間させる方向の力に変え、受
圧部で受けたシート面に対する弁座の圧接力は弱まる。In other words, when the sliding valve body is opened, the four parts formed on the valve seat at the initial stage of valve opening communicate with the flow path through the connection grooves formed on the seat surface, thereby reducing the fluid pressure in the flow path. The force received by the concave portion is converted into a force that moves the valve seat away from the seat surface, and the pressure force of the valve seat against the seat surface, which is received by the pressure receiving portion, is weakened.
従って、閉弁時にけ受圧部によってシート面に対する弁
座の圧接力を強めてシール性を高く維持しながら、開弁
操作時には、軽い操作力でスムーズに弁体を弁座に対し
て摺動δせながら開弁させることができ、結局、摺動弁
の性能及得操作性を、簡単な構造で向上きせることかで
きた。Therefore, when the valve is closed, the pressure receiving part strengthens the pressure contact force of the valve seat against the seat surface to maintain high sealing performance, and when the valve is opened, the valve body slides smoothly against the valve seat with a light operating force. As a result, the performance and operability of the sliding valve could be improved with a simple structure.
次に、本発明の実施例を、図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第３図に示すように、流路孔（ｆ）を形成した板状弁体
（１１を摺動自在に弁箱（２）に内装し、弁箱的流路（
Ｆ）が弁体（１）の流路孔（ｆ）を介して連通ずる開弁
位置と弁箱的流路（Ｆ）が弁体（１）によって遮断され
る閉弁位置とにわたって弁体ｆｉｌ ｆ：摺動操作する
弁体（３）を設け、更に、弁体（１１の表裏面に対して
各別に接触シール作用する一対の環状弁座（４）を、弁
箱内における流路開口部に内嵌装備し、もって、ゲート
弁を構成してある。As shown in FIG. 3, a plate-shaped valve body (11) having a flow passage hole (f) is slidably installed inside the valve box (2), and a valve box-like flow passage (
The valve body fil extends between the open position where F) communicates through the flow passage hole (f) of the valve body (1) and the closed position where the valve box-like flow passage (F) is blocked by the valve body (1). f: A sliding valve body (3) is provided, and a pair of annular valve seats (4) that individually contact and seal the front and back surfaces of the valve body (11) are installed at the flow passage opening in the valve box. It is equipped with an internal fitting, and constitutes a gate valve.
第２図及び第３図に示すように、弁体ｆ１）を、各弁座
（４）に対して各別に接触する一つの部分ＣＩＡ） 、
（ＩＢ）に分割形成すると共に、それら分割部分ＣＩ
Ａ） 、 （ＩＢ）どうしの接触面を弁体摺動操作方向
においてカム作用する凹凸保合状の傾斜カム面（ａ）・
（ｂ）に形成し、凹状のカム面（ａ）を形成した分割部
分（ＩＡ）に対して弁棒（３）を連動連結してある。As shown in FIGS. 2 and 3, one part CIA) contacts the valve body f1) separately with respect to each valve seat (4),
(IB), and those divided parts CI
A), (IB) An inclined cam surface (a) with a concave and convex shape that acts as a cam on the contact surface between them in the direction of sliding operation of the valve body.
(b), and a valve stem (3) is interlocked and connected to a divided portion (IA) formed with a concave cam surface (a).
そして、それら分割部分（ＩＡ）・（ＩＢ）どうしを接
近させる側に弾性付勢するスプリング（Ａ）を付設する
七共に、凸状カム面（ｂ）を形成した分割部分（ＩＢ）
の摺動範囲を規制するストンパー（６）を設け、もって
、中間開度状態に診ける弁体ｆｉｌ摺動操作過程におい
ては、第２図（イ）に示すように、スプリング（６）の
付勢力により面分割部分（ＩＡ）Ｉ（ＩＢ）どうしを接
近させた状態、換言すれば、弁体（１）の表裏面夫々を
対応する弁座（４）から離間させた状態で、面分割部分
（ＬＡ）、（ＩＢ）を、それらの凹凸状カム面（ａ）・
（ｂ）の係合作用によシ一体内に摺動きせるように、又
、＠２図（ロ）に示すように、弁全開位置近く並びに船
開位置近くにおいてストンパー（６）を作用させ、凸状
カム面（ｂ）を形成した分割部分（ＩＢ）の摺動を阻止
した状態で、凹状カム面（ａ）を形成した分割部分（Ｉ
Ａ）のみを引き続き摺動操作することに伴ないカム面（
ａ）Ｉ（ｂ）のカム作用により面分割部分（ＩＡ）ＩＣ
ＩＢ）をスプリング（６）に抗して離間させ、弁全閉位
置及び弁全開位置において弁体（１）の表裏面を対応す
る弁座（４）に対して各別に圧接するように構成してあ
る。A spring (A) that elastically urges the divided parts (IA) and (IB) to approach each other is attached to the divided part (IB), both of which form a convex cam surface (b).
A stomper (6) is provided to restrict the sliding range of the valve body, and as shown in Fig. 2 (A), during the sliding operation process of the valve body fil, which can check the intermediate opening state, the spring (6) is attached. The surface-divided portions (IA) I (IB) are brought closer to each other by force, in other words, the front and back surfaces of the valve body (1) are separated from the corresponding valve seat (4). (LA) and (IB), their uneven cam surfaces (a) and
The stomper (6) is actuated near the valve fully open position and near the ship open position so that it can be slid into the body by the engagement action in (b), and as shown in Figure 2 (b), With the divided part (IB) forming the convex cam surface (b) prevented from sliding, the divided part (IB) forming the concave cam surface (a)
As the sliding operation of only A) continues, the cam surface (
a) The surface dividing part (IA) IC by the cam action of I(b)
IB) are spaced apart against the spring (6), and the front and back surfaces of the valve body (1) are respectively pressed against the corresponding valve seats (4) in the valve fully closed position and the valve fully open position. There is.
つまり、上述の如き弁体［１１の拡縮機能によシ、弁体
（１）の摺動操作性を高く維持しながら極めて高いシー
ル性を発揮できるように構成してある。In other words, due to the expansion/contraction function of the valve body (11) as described above, the valve body (1) is configured to exhibit extremely high sealing performance while maintaining high sliding operability.
前記環状弁座（４）の内、第１図（イ）＋（ロ）に示す
ように、弁体（１）の上流側シート面（Ａ）に対する弁
座（４）を、シート面（Ａ）に対して遠近移動自在に弁
箱（２）に設け、流路（Ｆ）の流体圧を受けて、弁座（
４）を閉弁時のシート面（Ａ）に圧接するための受圧部
（７）を、前記弁座（４）に形成し、前記弁座（４）に
凹部（８）を形成し、開弁初期に凹部（８）と流路（Ｆ
）を連通δせる接続溝（９）を、シート面（Ａ）に形−
成してある。Of the annular valve seats (4), as shown in FIGS. ), and is installed in the valve box (2) so as to be able to move near and far with respect to the valve seat (2).
4) is formed in the valve seat (4) with a pressure receiving part (7) for pressing against the seat surface (A) when the valve is closed, and a recess (8) is formed in the valve seat (4). At the initial stage of the valve, the recess (8) and the flow path (F
) on the seat surface (A).
It has been completed.
更に、前記シート面（Ａ）には、閉弁時に凹部（８）と
弁箱（２）内の空間（Ｓ＞とを連通させて、凹部（８）
内の圧力を低下させるためのバイパス溝（ｌＯ）を形成
してある。Further, the seat surface (A) is provided with a recess (8) that communicates the recess (8) with the space (S> in the valve box (2) when the valve is closed).
A bypass groove (lO) is formed to reduce the internal pressure.
従って、閉弁時には、第１図（イ）に示すように、受圧
部（７）が流体圧を受けて弁座（４）をシート面（Ａ）
期には、第１図（ロ）に示すように、開弁操作に伴って
シート面（Ａ）の接続溝（９）が、凹部（８）と接続し
間きせる方向の力に変化させて、受圧５（７）による弁
座（４）のシート面（Ａ）に対する圧接力を弱め、弁体
ｆｉ＋の摺動を容易にきせる。Therefore, when the valve is closed, the pressure receiving part (7) receives fluid pressure and moves the valve seat (4) toward the seat surface (A), as shown in FIG. 1(A).
During the period, as shown in Fig. 1 (b), as the valve is opened, the force changes in the direction in which the connecting groove (9) on the seat surface (A) connects with the recess (8) and creates a gap. , the pressure applied by the receiving pressure 5 (7) against the seat surface (A) of the valve seat (4) is weakened, and the sliding of the valve body fi+ is facilitated.
図中（１１）は弁箱（２）と弁座（４）との開音シール
するＯリングであり、０２）はグリス供給−路である。In the figure, (11) is an O-ring that seals the valve box (2) and the valve seat (4), and 02) is a grease supply path.
前記弁体（１）を、２分割した部分（ＬＡ） 、 （Ｉ
Ｂ）から成るもの以外に、一つの弁体から成るものであ
っても良く、それらを単に摺動弁体と総称する。The valve body (1) is divided into two parts (LA) and (I
In addition to the one consisting of B), it may also consist of one valve body, and these are simply referred to as a sliding valve body.
図面は本発明に係る摺動弁の実施例を示し、第１図（イ
）・（ロ）は夫々要部作用説明図、第２図（イ）Ｔ（ロ
）は要部作用説明図、第３図は摺動弁の全体縦断面図で
ある。
（１）・・・・・・ｍ動弁体、（２）・・・・・・弁箱
、（４）・・・・・・弁座、（７）・・・・・・受圧部
、（８）・・・・・・凹部、（９）・・・・・接続溝、
囚・・・・ソート面、ＣＦ）−・・・・流路。
代理人 弁理士 北 村 修
第１
（イ）
ヒ
（ロ）
（イ）
？ １
第２図
中）The drawings show an embodiment of the sliding valve according to the present invention, and FIGS. 1(a) and 2(b) are diagrams explaining the operation of the main parts, respectively, and FIGS. FIG. 3 is an overall vertical sectional view of the slide valve. (1)...m valve body, (2)...valve box, (4)...valve seat, (7)...pressure receiving part, (8)... recess, (9)... connection groove,
Prisoner... Sort plane, CF) -... Channel. Agent Patent attorney Osamu Kitamura 1 (a) Hi (b) (a) ? 1 (in Figure 2)
Claims (1)
（Ａ）に対する弁座（４）を、前記シート面（２）に対
して遠近移動自在に弁箱（２）に設け、前記流路（Ｆ）
の流体圧を受けて、前記弁座（４）を閉弁時の前記シー
ト面（２）に圧接するための受圧部（７）を、前記弁座
（４）に形成してある摺動弁であって、前記弁座（４）
に凹部（８）を形成し、開弁初期に前記凹部（８）と流
路（Ｆ）を連通させる接続溝（９）を、前記シート面（
Ａ）に形成してある摺動弁。A valve seat (4) for the upstream seat surface (A) of the sliding valve body (1) that opens and closes the flow path (F) is attached to the valve box (2) so as to be movable near and far with respect to the seat surface (2). provided, the flow path (F)
A sliding valve having a pressure receiving part (7) formed in the valve seat (4) for receiving fluid pressure of the valve seat and pressing the valve seat (4) against the seat surface (2) when the valve is closed. The valve seat (4)
A recess (8) is formed in the seat surface (
The sliding valve formed in A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7496186A JPS62233571A (en) | 1986-03-31 | 1986-03-31 | Slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7496186A JPS62233571A (en) | 1986-03-31 | 1986-03-31 | Slide valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62233571A true JPS62233571A (en) | 1987-10-13 |
| JPH033099B2 JPH033099B2 (en) | 1991-01-17 |
Family
ID=13562415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7496186A Granted JPS62233571A (en) | 1986-03-31 | 1986-03-31 | Slide valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62233571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012139504A1 (en) * | 2011-04-14 | 2012-10-18 | Zhang Wei | Sliding plate valve |
-
1986
- 1986-03-31 JP JP7496186A patent/JPS62233571A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012139504A1 (en) * | 2011-04-14 | 2012-10-18 | Zhang Wei | Sliding plate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033099B2 (en) | 1991-01-17 |
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