JPS5825915B2 - Rotary valve opening/closing device - Google Patents
Rotary valve opening/closing deviceInfo
- Publication number
- JPS5825915B2 JPS5825915B2 JP13774279A JP13774279A JPS5825915B2 JP S5825915 B2 JPS5825915 B2 JP S5825915B2 JP 13774279 A JP13774279 A JP 13774279A JP 13774279 A JP13774279 A JP 13774279A JP S5825915 B2 JPS5825915 B2 JP S5825915B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- lift nut
- valve body
- protrusion
- stopper
- 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
Landscapes
- Taps Or Cocks (AREA)
- Mechanically-Actuated Valves (AREA)
Description
【発明の詳細な説明】
本発明は弁筒体内で回転する弁体により通路を開閉する
回転弁の開閉操作装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing device for a rotary valve that opens and closes a passage using a valve body rotating within a valve cylinder body.
従来のこの種回転弁には、古くから広く使用されている
コックのように、弁と弁座を圧着したまま弁体を回転さ
せる形式のものと、−量弁と弁座との圧接をゆるめてか
ら弁体な回転させることにより通路を開閉するもの（□
Ｕえば実公昭５３−２５２２９号）との二種類がある。Conventional rotary valves of this type include those that rotate the valve body while keeping the valve and valve seat pressed together, like cocks that have been widely used for a long time, and those that rotate the valve body while keeping the valve and valve seat pressed together, and those that rotate the valve body while the pressure contact between the valve and valve seat is loosened. A device that opens and closes a passage by rotating a valve body (□
There are two types: Utility Model Publication No. 53-25229).
しかして前者は弁体を回転させる場合に、弁と弁座との
圧接面の摩擦抵抗により弁の開閉トルクが大きくなる上
に、弁と弁座との接合面が損傷したり摩耗する結果、長
期にわたって弁と弁座との密着を保つことが困難である
という欠点があった。However, in the former case, when rotating the valve body, the opening and closing torque of the valve increases due to the frictional resistance of the pressure contact surface between the valve and the valve seat, and as a result, the contact surface between the valve and the valve seat is damaged or worn out. The drawback is that it is difficult to maintain close contact between the valve and the valve seat over a long period of time.
これに対して後者は、弁体を回転させる前に弁を弁座か
ら離すか、あるいは弁と弁座との圧接をゆるめるため、
前記のような不具合を生ずることは殆どない。On the other hand, the latter involves separating the valve from the valve seat or loosening the pressure between the valve and the valve seat before rotating the valve body.
The above-mentioned problems rarely occur.
しかしながら弁体の回転前後に弁体を離着座させる機構
としては、従来種々の装置が提案されているが、それら
はいずれも構造が複雑で、構成部品数が多く、加工およ
び組立に多くの手数がかかるという欠点があった。However, various devices have been proposed in the past as mechanisms for separating and seating the valve body before and after rotation, but all of them have complex structures, have a large number of components, and require many steps to process and assemble. The disadvantage was that it took a lot of time.
本発明は上述の欠点を解消するためになされたもので、
弁体の回転前後に弁体な離着座させる装置を少ない構成
部品で簡単な構造で形成すると共に、弁体の回転と離着
座操作を単一の操作軸の操作により容易かつ確実に行え
るようにすることを目的とするものである。The present invention has been made to solve the above-mentioned drawbacks.
The device for separating and seating the valve body before and after rotation of the valve body is formed with a simple structure using a small number of components, and the rotation and seating/seating operations of the valve body can be easily and reliably performed by operating a single operating shaft. The purpose is to
すなわち本発明においては、弁筒体内で回転する弁体に
より通路を開閉する回転弁において、中空円筒体の上端
部にねじ孔を形成すると共に、その外周部に鍔を突設し
、この鍔の外周に外方突起を設けると共に鍔の下面に下
方突起を設けてリフトナツトを形成し、このリフトナツ
トの円筒部と嵌合するリングの上面に前記リフトナツト
の下方突起と嵌合する凹陥部を設けると共に、前記外方
突起と係合することによりリフトナツトの回動角度を所
定の範囲に限定する突起を設けてストッパーを形成し、
このストッパーを固定ケースに固着し、このストッパー
と嵌合したリフトナツトの１端部を弁軸に嵌着し、この
リフトナツトのねじ孔と螺合するねじを有する開閉操作
軸を固定ケースに対して軸方向には移動しないように回
転自在に設けることにより回転弁の開閉操作を単一の操
作軸の操作により容易かつ確実に行えるようにしたもの
である。That is, in the present invention, in a rotary valve that opens and closes a passage by a valve body rotating within a valve body, a screw hole is formed at the upper end of the hollow cylinder, and a flange is provided protruding from the outer periphery of the hollow cylindrical body. A lift nut is formed by providing an outward protrusion on the outer periphery and a downward protrusion on the lower surface of the flange, and providing a concave portion on the upper surface of a ring that fits with the cylindrical portion of the lift nut, and that fits with the downward protrusion of the lift nut; a stopper is formed by providing a protrusion that engages with the outer protrusion to limit the rotation angle of the lift nut to a predetermined range;
This stopper is fixed to the fixed case, one end of the lift nut fitted with this stopper is fitted to the valve shaft, and the opening/closing operation shaft having a screw that engages with the threaded hole of this lift nut is pivoted relative to the fixed case. By providing the rotary valve so as to be rotatable without moving in any direction, the rotary valve can be opened and closed easily and reliably by operating a single operating shaft.
以下図面について本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
図中１はプラグバルブの弁匣体、１ａはその通路、１ｂ
は弁座、２は回転式の弁体、２ａはその開口、３は弁体
２とピン４により結合した弁軸、５は弁体１の上蓋、６
はパツキン、７はパツキン押え、８は上蓋５上にボルト
（図示せず）により結合した固定ケースである。In the figure, 1 is the valve casing of the plug valve, 1a is its passage, and 1b
is a valve seat, 2 is a rotary valve body, 2a is its opening, 3 is a valve shaft connected to the valve body 2 by a pin 4, 5 is a top cover of the valve body 1, 6
7 is a packing, 7 is a packing holder, and 8 is a fixed case connected to the top cover 5 by bolts (not shown).
本発明においては中空円筒体９ａの上端部にねじ孔９ｂ
を形成すると共に、その外周部に鍔９ｃを突設し、この
鍔９ｃの外周の両側方に１８０°の位相で外方突起９ｄ
をそれぞれ設けると共に、鍔９ｃの下面に外方突起９ｄ
と同位相でそれぞれ下方突起９ｅを設けてリフトナツト
９を形成する。In the present invention, a screw hole 9b is provided at the upper end of the hollow cylindrical body 9a.
At the same time, a flange 9c is provided on the outer periphery of the flange 9c, and outward projections 9d are formed on both sides of the outer periphery of the flange 9c at a phase of 180°.
are provided respectively, and the outer protrusion 9d is provided on the lower surface of the collar 9c.
The lift nut 9 is formed by providing a lower projection 9e in the same phase as the lower projection 9e.
またリフトナツト９の円筒部９ａと嵌合するリングの上
面１０ａにリフトナツト９の下方突起９ｅと嵌合する凹
陥部１０ｂを１８０°位相で設けると共に、前記外方突
起９ｄと係合することによりリフトナツト９の回動角度
を凹陥部１０ｂを起点として９０°の範囲に限定する突
起？Ｏｃを設けてストッパー１０を形成する。Further, the upper surface 10a of the ring that fits into the cylindrical portion 9a of the lift nut 9 is provided with recessed portions 10b that fit with the lower protrusion 9e of the lift nut 9 at a 180° phase, and by engaging with the outer protrusion 9d, the lift nut 9 A protrusion that limits the rotation angle to a range of 90° from the concave portion 10b as a starting point? Oc is provided to form the stopper 10.
そしてこのストッパー１０をパツキン１１を介して固定
ケース８にボルト（図示せず）により固着し、このスト
ッパー１０と嵌合したリフトナツト９の下端部を弁軸３
の上端部に嵌合してからピン１２を介して固定し、この
リフトナツト９のねじ孔９ｂと螺合するねじ１３ａを有
する開閉操作軸１３を固定ケース８の上蓋１４に対して
軸方向には移動しないように回転自在に設ける。This stopper 10 is fixed to the fixed case 8 with a bolt (not shown) through the packing 11, and the lower end of the lift nut 9 fitted with this stopper 10 is connected to the valve shaft 3.
The opening/closing operation shaft 13, which has a screw 13a that is fitted into the upper end portion and then fixed via the pin 12, and that is screwed into the screw hole 9b of the lift nut 9, is axially connected to the upper cover 14 of the fixed case 8. It is installed so that it can rotate freely so that it does not move.
すなわち１３ｂは軸１３に設けた大径部、１５はこの大
径部１３ｂの上下部に設けたスラストベアリング、１６
はベアリング押え、１７．１８はブツシュ、１３ｃは軸
１３の上端部に形成した角筒部、１９はこの角筒部１３
ｃに嵌合したバンドルである。That is, 13b is a large diameter portion provided on the shaft 13, 15 is a thrust bearing provided at the upper and lower portions of this large diameter portion 13b, and 16
17.18 is a bushing, 13c is a square tube formed at the upper end of the shaft 13, and 19 is a square tube formed on this square tube 13.
This is the bundle fitted to c.
つぎに上述のように構成した本発明装置の作用を説明す
る。Next, the operation of the apparatus of the present invention constructed as described above will be explained.
第１図および第２図はこのバルブの全閉状態を示すもの
で、この場合はリフトナンド９の下方突起９ｅがストッ
パー１０の凹陥ｍｏｂと嵌合しており、弁体２は弁軸３
と共に弁匣体１に対して下降しているため、弁座１ｂと
密着している。1 and 2 show the fully closed state of this valve. In this case, the lower protrusion 9e of the lift nand 9 is fitted into the concave mob of the stopper 10, and the valve body 2 is connected to the valve shaft 3.
Since it is also lowered with respect to the valve casing 1, it is in close contact with the valve seat 1b.
この状態からバルブを開くには、バンドル１９を上方よ
りみて反時計方向に回転させる。To open the valve from this state, rotate the bundle 19 counterclockwise when viewed from above.
なお本実施では前記のねじ孔９ｂおよびねじ１３ａは左
ねじ（逆ねじ）を形成しであるものとする。In this embodiment, it is assumed that the screw hole 9b and the screw 13a have a left-hand thread (reverse thread).
したがって軸１３が反時計方向に回転すると、リフトナ
ツト９がねじ１３ａとねじ孔９ｂとの作用によって第２
図の状態から第３図に示すように上昇し、弁軸３の上端
面３ａが開閉操作軸１３の下端面１３ｂと衝合した位置
で停止する。Therefore, when the shaft 13 rotates counterclockwise, the lift nut 9 is moved to the second position by the action of the screw 13a and the screw hole 9b.
It rises from the state shown in the figure as shown in FIG. 3, and stops at a position where the upper end surface 3a of the valve shaft 3 abuts the lower end surface 13b of the opening/closing operation shaft 13.
この場合リフトナツト９の上昇に伴って軸３を介して弁
体２も上昇するため、弁体２は弁座１ｂかられずかなが
ら離間している。In this case, since the valve body 2 also rises via the shaft 3 as the lift nut 9 rises, the valve body 2 is slightly separated from the valve seat 1b.
しかしてこの時リフトナツト９の下方突起９ｅはストッ
パー１０の凹陥部１０ｂから抜は出しているから、バン
ドル１９をさらに反時計方向に回転させると、今度はリ
フトナツト９が軸３および弁体２と共に開閉操作軸１３
と共に回動し、リフトナツト９の外方突起９ｂがストッ
パー１０の突起１０ｃの端面と衝合するまで約９０°回
転してバルブを開く。However, at this time, the lower protrusion 9e of the lift nut 9 has come out of the concave portion 10b of the stopper 10, so when the bundle 19 is further rotated counterclockwise, the lift nut 9 opens and closes together with the shaft 3 and the valve body 2. Operation axis 13
The lift nut 9 rotates approximately 90 degrees until the outer protrusion 9b of the lift nut 9 abuts the end surface of the protrusion 10c of the stopper 10, thereby opening the valve.
この場合前記したように弁体２は弁座１ｂかられずかに
離間しているため、回転トルクは小さく、また弁座１ｂ
と弁体２との接合面を傷つげたり摩耗させることはない
。In this case, as described above, since the valve body 2 is slightly spaced apart from the valve seat 1b, the rotational torque is small, and the valve body 2 is slightly spaced apart from the valve seat 1b.
The joint surface between the valve body 2 and the valve body 2 will not be damaged or worn.
つぎにこのバルブを閉じるには、バンドル１９を上方よ
り見て時計方向に回転させる。Next, to close this valve, bundle 19 is rotated clockwise when viewed from above.
その結果軸１３のねじ１３ａはねじ孔９ｂを介してリフ
トナツト９を下方へ押し下げようとするが、この場合下
方突起９ｅの下面とストッパー１０の上面１０ａとの間
にはほとんど隙き間がないため、突起９ｅはストッパー
１０の上面ＴＯａとすぐに接合し、その後はリフトナツ
ト９は軸１３と共に回動し、外方突起９ｄがストッパー
１０の突起１０′ｃの端面と衝合した位置（９０°回転
した位置）で停止する。As a result, the screw 13a of the shaft 13 tries to push the lift nut 9 downward through the screw hole 9b, but in this case, there is almost no gap between the lower surface of the lower projection 9e and the upper surface 10a of the stopper 10. , the protrusion 9e is immediately joined to the top surface TOa of the stopper 10, and thereafter the lift nut 9 rotates together with the shaft 13 until the outer protrusion 9d abuts the end surface of the protrusion 10'c of the stopper 10 (rotated by 90 degrees). stop at the position).
このリフトナツト９が回転すると弁軸３を介して弁体２
も９０°回転してバルブ閉止状態となる。When this lift nut 9 rotates, the valve body 2 is moved through the valve shaft 3.
The valve is also rotated 90 degrees and the valve is closed.
この弁体２の回転中も弁体２と弁座１ｂとの間にはわず
かな間隙があるため回転トルクは小さく、かつ弁座１ｂ
と弁体２との接合面が損傷したり摩耗するおそれはない
。Even during this rotation of the valve body 2, there is a slight gap between the valve body 2 and the valve seat 1b, so the rotational torque is small, and the valve seat 1b
There is no risk of damage or wear to the joint surface between the valve body 2 and the valve body 2.
ついでバンドル１９をさらに時計方向に回転すると、今
度はリフトナツト９は回転しないから、ねじ１３ａと９
ｂの作用によってリフトナツト９は下降し、下方突起９
ｅが凹陥部１０ｂ内に嵌入する。Next, when the bundle 19 is further rotated clockwise, the lift nut 9 does not rotate, so the screws 13a and 9
The lift nut 9 is lowered by the action of b, and the lower protrusion 9
e fits into the recessed portion 10b.
リフトナツト９が下降すれば弁軸３を介して弁体２も下
降するから、この下降によって弁体２が弁座１ｂに圧接
し、パルプを完全に閉じる。When the lift nut 9 descends, the valve body 2 also descends via the valve shaft 3, and this descent brings the valve body 2 into pressure contact with the valve seat 1b, completely closing the pulp.
すなわち第１図に示す状態に戻る。That is, the state returns to the state shown in FIG.
本発明装置は上述のようにストッパー１０とリフトナツ
ト９と付加するだけの簡単な構造であるから、弁体の回
転前後に弁体を離着塵させる装置を少ない構成部品で形
成できると共に、弁体の回転と離着塵操作を単一の操作
軸の操作により容易かつ確実に行うことができるという
効果がある。As described above, the device of the present invention has a simple structure that only requires the addition of the stopper 10 and the lift nut 9. Therefore, the device for separating and depositing dust on the valve body before and after rotation of the valve body can be formed with a small number of components. The effect is that the rotation and dust removal operations can be easily and reliably performed by operating a single operating shaft.
【図面の簡単な説明】
第１図は本発明装置を付したプラグバルブの縦断面図、
第２図はその部分詳細図、第３図はその作動説明図、第
４図はリフトナツトの側面図、第５図はリフトナツトと
ストッパーの一部を切欠して示した斜視図である。
１・・・プラグバルブの弁匣体、２・・・弁体、３・・
・弁軸、４・・ピン、５・・・上蓋、６・・・パツキン
、７・・・パツキン押え、８・・・固定ケース、９・・
・リフトナツト、９ａ・・・中空円筒体、９ｂ・・・ね
じ孔、９ｃ・・・鍔、９ｄ・・・外方突起、９ｅ・・・
下方突起、１０・・・ストッパー、１０ａ・・・リング
上面、１０ｂ・・・凹陥部、１０ｃ・・・突起、１１・
・・パツキン、１２・・・ピン、１３・・・開閉操作軸
、１３ａ・・・ねじ、１４・・・固定ケース８の上蓋、
１５・・・スラストベアリング、１６・・・ベアリング
押え、１７．１８・・・ブツシュ、１９・・・バンドル
。[Brief explanation of the drawings] Fig. 1 is a longitudinal sectional view of a plug valve equipped with the device of the present invention;
FIG. 2 is a detailed view of a portion thereof, FIG. 3 is an explanatory view of its operation, FIG. 4 is a side view of the lift nut, and FIG. 5 is a partially cut away perspective view of the lift nut and stopper. 1... Valve body of plug valve, 2... Valve body, 3...
・Valve stem, 4... Pin, 5... Top cover, 6... Packing, 7... Packing holder, 8... Fixed case, 9...
・Lift nut, 9a...Hollow cylindrical body, 9b...Screw hole, 9c...Brim, 9d...Outward projection, 9e...
Lower projection, 10...Stopper, 10a...Ring top surface, 10b...Concave portion, 10c...Protrusion, 11.
...Packskin, 12...Pin, 13...Opening/closing operation shaft, 13a...Screw, 14...Top lid of fixed case 8,
15... Thrust bearing, 16... Bearing holder, 17.18... Bush, 19... Bundle.
Claims (1)
弁において、中空円筒体の上端部にねじ孔を形成すると
共に、その外周部に鍔を突設し、この鍔の外周に外方突
起を設けると共に鍔の下面に下方突起を設けてリフトナ
ツトを形成し、このリフトナツトの円筒部と嵌合するリ
ングの上面に前記リフトナツトの下方突起と嵌合する凹
陥部を設けると共に、前記外方突起と係合することによ
りリフトナツトの回動角度を所定の範囲に限定する突起
を設けてストッパーを形成し、このスト、ツバ−を固定
ケースに固着し、このストッパーと嵌合したリフトナツ
トの下端部を弁軸に嵌着し、このリフトナツトのねじ孔
と螺合するねじを有する開閉操作軸を固定ケースに対し
て軸方向には移動しないように回転自在に設けてなる回
転弁の開閉操作装置。1. In a rotary valve that opens and closes a passage by a valve body that rotates within a valve cylinder, a screw hole is formed at the upper end of the hollow cylinder, and a flange is provided on the outer periphery of the cylindrical body, and an outward projection is provided on the outer periphery of the cylindrical body. A lift nut is formed by providing a downward protrusion on the lower surface of the flange, and a recessed portion that engages with the lower protrusion of the lift nut is provided on the upper surface of a ring that fits into the cylindrical portion of the lift nut, and a recess that fits with the downward protrusion of the lift nut. A stopper is formed by providing a protrusion that limits the rotation angle of the lift nut to a predetermined range by engagement, and the stopper and collar are fixed to a fixed case, and the lower end of the lift nut fitted with the stopper is used as a valve. An opening/closing operation device for a rotary valve, comprising an opening/closing operation shaft that is fitted onto a shaft and has a screw that engages with a threaded hole of a lift nut, and is rotatably provided so as not to move in the axial direction with respect to a fixed case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13774279A JPS5825915B2 (en) | 1979-10-26 | 1979-10-26 | Rotary valve opening/closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13774279A JPS5825915B2 (en) | 1979-10-26 | 1979-10-26 | Rotary valve opening/closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5663175A JPS5663175A (en) | 1981-05-29 |
| JPS5825915B2 true JPS5825915B2 (en) | 1983-05-30 |
Family
ID=15205760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13774279A Expired JPS5825915B2 (en) | 1979-10-26 | 1979-10-26 | Rotary valve opening/closing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5825915B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322536B (en) * | 2011-09-05 | 2012-11-07 | 上海鸿润科技有限公司 | Valve core assembly and valve using same |
-
1979
- 1979-10-26 JP JP13774279A patent/JPS5825915B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5663175A (en) | 1981-05-29 |
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