JP2001146977A - Diaphragm valve of high-speed opening and closing type - Google Patents
Diaphragm valve of high-speed opening and closing typeInfo
- Publication number
- JP2001146977A JP2001146977A JP33240399A JP33240399A JP2001146977A JP 2001146977 A JP2001146977 A JP 2001146977A JP 33240399 A JP33240399 A JP 33240399A JP 33240399 A JP33240399 A JP 33240399A JP 2001146977 A JP2001146977 A JP 2001146977A
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- ball
- cam
- valve
- cam groove
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、急速開閉型のダイ
ヤフラム弁に関する。The present invention relates to a quick opening and closing type diaphragm valve.
【０００２】[0002]
【従来の技術】従来の急速開閉型のダイヤフラム弁は、
上面に開口部を有し内部の流路が弁座によって二分され
た弁体と、弁体の開口部を覆うダイヤフラムと、ダイヤ
フラムの上方に配設されてダイヤフラムを弁体に固定す
るボンネットと、ボンネットに回動可能に軸支された弁
軸と、この弁軸にカム機構を介在して軸方向に往復可能
に接続され、下部がダイヤフラムの中央上部に取り付け
られたコンプレッサとを備えている。2. Description of the Related Art A conventional quick opening and closing type diaphragm valve is
A valve body having an opening on the upper surface and an internal flow path bisected by a valve seat, a diaphragm covering the opening of the valve body, a bonnet disposed above the diaphragm and fixing the diaphragm to the valve body, A valve shaft rotatably supported by the bonnet, and a compressor connected to the valve shaft so as to be able to reciprocate in the axial direction via a cam mechanism and having a lower portion attached to an upper central portion of the diaphragm.
【０００３】カム機構は、弁軸に直交方向に取り付けら
れたカムピンと、弁軸を軸方向に摺動可能にかつ周方向
に回動可能に外嵌するカム筒とから形成される。カム筒
は、そのガイドピンがボンネットのガイド溝に係合する
ことにより周方向に回動不能である。カム筒の下部に
は、コンプレッサの上部が掛け止めされる。カム筒には
カムピンに係合するカム溝が配設され、カム溝は、軸心
との直交面に対し斜めに延びる斜行域と、この斜行域の
下端及び上端にそれぞれ配設された全開域及び全閉域と
から成る。[0003] The cam mechanism is formed of a cam pin attached to the valve shaft in a direction perpendicular to the valve shaft, and a cam cylinder fitted on the valve shaft so as to be slidable in the axial direction and rotatable in the circumferential direction. The cam cylinder cannot rotate in the circumferential direction because its guide pin engages with the guide groove of the bonnet. The upper part of the compressor is hung on the lower part of the cam cylinder. The cam cylinder is provided with a cam groove that engages with a cam pin, and the cam groove is disposed at a lower end and an upper end of the oblique area extending obliquely to a plane orthogonal to the axis. It consists of a fully open area and a fully closed area.
【０００４】全開時には、弁軸のカムピンがカム溝の全
開域まで移動しする．これにより、カム筒がコンプレッ
サを介してダイヤフラムを引き上げて、ダイヤフラム弁
を開弁させる。また、全閉時には弁軸のカムピンがカム
溝の全閉域まで移動し、カム筒がコンプレッサを介して
ダイヤフラムを押し下げて、ダイヤフラム弁を閉弁させ
る。When fully opened, the cam pin of the valve shaft moves to the fully open area of the cam groove. Thereby, the cam cylinder pulls up the diaphragm via the compressor, and opens the diaphragm valve. Also, when fully closed, the cam pin of the valve shaft moves to the fully closed area of the cam groove, and the cam cylinder pushes down the diaphragm via the compressor to close the diaphragm valve.
【０００５】[0005]
【発明が解決しようとする課題】上述した従来の急速開
閉型ダイヤフラム弁は、カムピンが全開時にカム溝の全
開域に入り込み、全閉時には全閉域に入り込むことによ
り、弁がそれぞれ全開位置及び全閉位置に保持される。
また、全閉時にはダイヤフラムが弁体の弁座に押圧され
るため、ダイヤフラムの弾性反発力により、カムピンと
カム溝との間に摩擦力が発生し、ダイヤフラム弁は全閉
位置に比較的安定した形で保持される。しかしながら、
全開時には、カムピンがカム溝の全開域から閉弁方向に
動きだすことがあり、ダイヤフラム弁を全開位置に安定
的に保持することができないという問題がある。In the conventional quick opening / closing diaphragm valve described above, the cam pin enters the fully open area of the cam groove when fully opened and enters the fully closed area when fully closed, so that the valve is fully opened and fully closed, respectively. Held in position.
Also, when the diaphragm is fully closed, the diaphragm is pressed against the valve seat of the valve body, so that the elastic repulsion of the diaphragm generates a frictional force between the cam pin and the cam groove, and the diaphragm valve is relatively stable at the fully closed position. Held in shape. However,
When fully opened, the cam pin may start to move from the fully open area of the cam groove in the valve closing direction, and there is a problem that the diaphragm valve cannot be stably held at the fully open position.
【０００６】本発明はこのような問題を解決するために
なされたもので、その課題は、全開時にダイヤフラム弁
を全開位置に安定的に保持することができる急速開閉型
ダイヤフラム弁を提供することである。The present invention has been made to solve such a problem, and an object of the present invention is to provide a quick opening / closing type diaphragm valve capable of stably holding a diaphragm valve at a fully open position when fully opened. is there.
【０００７】[0007]
【課題を解決するための手段】上述の課題を解決するた
めに、本発明が採用する手段は、ボンネットに回動可能
に軸支された弁軸と、この弁軸に直交方向に取り付けら
れたカムピンと、カムピンに係合するカム溝が設けられ
ると共に弁軸を軸方向に摺動可能にかつ周方向に回動可
能に外嵌するカム筒と、このカム筒の下部に上部が掛け
止めされたコンプレッサと、コンプレッサに中央上部が
取り付けられたダイヤフラムとを備えたダイヤフラム弁
において、弁軸に直交方向に延びるボール収容孔を全開
時にカム溝の全閉域に開口するように穿設し、部分的に
突出可能なボールとボールを半径方向外方に付勢するば
ねとをボール収容孔に内設し、全開時にボールをカム溝
の全閉域側の端部に突出させて当接させたことにある。
このように、ボールをばね力によりカム溝の全閉域側の
端部に当接させて、全開時にカムピンがカム溝の全開域
から閉弁方向に容易に動きださないようにする。In order to solve the above-mentioned problems, the present invention employs a valve shaft rotatably supported by a bonnet, and a valve shaft mounted orthogonally to the valve shaft. A cam pin, a cam groove provided with a cam groove to be engaged with the cam pin, and a cam cylinder externally fitted to the valve shaft so as to be slidable in the axial direction and rotatable in the circumferential direction, and an upper portion is latched at a lower portion of the cam cylinder. In a diaphragm valve comprising a compressor having a compressor and a diaphragm having a central upper portion attached to the compressor, a ball receiving hole extending in a direction perpendicular to the valve shaft is bored so as to be opened in a fully closed area of the cam groove when fully opened. A ball that can protrude into the ball and a spring that urges the ball radially outward are installed in the ball receiving hole, and when the ball is fully opened, the ball protrudes from the end on the fully closed area side of the cam groove and makes contact with it. is there.
In this manner, the ball is brought into contact with the end of the cam groove on the side of the fully closed area by the spring force so that the cam pin does not easily move from the fully open area of the cam groove in the valve closing direction when fully opened.
【０００８】又は、カム溝は、軸心との直交面に対し斜
めに延びる斜行域と、この斜行域の下端及び上端からそ
れぞれ相反する方向に延びる全開域及び全閉域とから成
り、この全開域を軸心との直交面に対し０．１０ｒａｄ
（６°）以上０．１７ｒａｄ（１０°）以下の角度だけ
上方に傾斜させ、全閉域を軸心との直交面に対し０．０
５ｒａｄ（３°）以上０．１２ｒａｄ（７°）以下の角
度だけ下方に傾斜させたことにある。このように、カム
溝の全開域及び全閉域に斜行域とは反対方向の傾斜を設
けて、カムピンがカム溝の山を乗り越えない限り、全開
域及び全閉域からそれぞれ閉弁及び開弁方向に動きだせ
ないようにする。ここで、全開域及び全閉域の傾斜角度
がそれぞれ０．１０ｒａｄ（６°）及び０．０５ｒａｄ
（３°）未満の場合には、カムピンに対する押え効果が
期待できず、傾斜角度がそれぞれ０．１７ｒａｄ（１０
°）及び０．１２ｒａｄ（７°）を超える場合には、ダ
イヤフラムを全開及び全閉位置からさらに大きくそれぞ
れ開弁及び閉弁方向に動かすことになり、ダイヤフラム
の耐久性を損なう。[0008] Alternatively, the cam groove includes an oblique area extending obliquely to a plane perpendicular to the axis, and a fully open area and a fully closed area extending in opposite directions from a lower end and an upper end of the oblique area, respectively. 0.10 rad for the fully open area with respect to the plane perpendicular to the axis
(6 °) or more and an angle of 0.17 rad (10 °) or less, and the total closed area is set at 0.0 to a plane orthogonal to the axis.
That is, it is inclined downward by an angle of 5 rad (3 °) or more and 0.12 rad (7 °) or less. In this manner, the cam groove is provided with an inclination in the direction opposite to the skewed area in the fully open area and the fully closed area, and the valve closing direction and the valve opening direction are respectively set from the fully open area and the fully closed area as long as the cam pin does not climb over the cam groove. To prevent movement. Here, the inclination angles of the fully open area and the fully closed area are 0.10 rad (6 °) and 0.05 rad, respectively.
If the angle is less than (3 °), the pressing effect on the cam pin cannot be expected, and the inclination angles are each 0.17 rad (10 °).
°) and 0.12 rad (7 °), the diaphragm is moved farther from the fully open and fully closed positions in the valve opening and valve closing directions, respectively, which impairs the durability of the diaphragm.
【０００９】好ましくは、上記２つの手段を併せて実施
する。Preferably, the above two means are implemented together.
【００１０】[0010]
【発明の実施の形態】本発明に係る急速開閉型ダイヤフ
ラム弁を、図１ないし図３を参照して詳細に説明する。
図１に示すように、ダイヤフラム弁は、弁体１、ダイヤ
フラム５、ボンネット７、コンプレッサ９、弁軸１０等
から構成される。弁体１は、上部に開口部２を有し、弁
座３によって内部の流路が二分される。ダイヤフラム５
は、弾性素材により形成され、ダイヤフラム５の上方に
配設されたボンネット７により、弁体１に固定される。
弁軸１０は、スラストワッシャ３０、閉位置調整ねじ３
１、Ｃ形止め輪３２等により、ボンネット７に回動可能
に軸支される。ボンネット７の上部にはキャップ８が取
り付けられ、弁軸１０の上部にはハンドル３３が取り付
けられる。コンプレッサ９は、弁軸１０にカム筒２３を
介在して軸方向に往復可能に接続される。コンプレッサ
９の下部には、ダイヤフラム５の中央上部が係止され
る。カムピン２１が弁軸１０を直交方向に貫通し、この
カムピン２１の両端部に、カム機構の作動をスムーズに
するためのローラ２２を回動可能に取り付ける。カムピ
ン２１とローラ２２は、ボンネット７により直径方向へ
の飛び出しが抑えられる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A quick opening / closing diaphragm valve according to the present invention will be described in detail with reference to FIGS.
As shown in FIG. 1, the diaphragm valve includes a valve body 1, a diaphragm 5, a bonnet 7, a compressor 9, a valve shaft 10, and the like. The valve element 1 has an opening 2 at an upper part, and an internal flow path is divided into two by a valve seat 3. Diaphragm 5
Is fixed to the valve body 1 by a bonnet 7 disposed above the diaphragm 5.
The valve shaft 10 has a thrust washer 30, a closing position adjusting screw 3
1, is rotatably supported on the bonnet 7 by a C-shaped retaining ring 32 or the like. A cap 8 is attached to an upper portion of the hood 7, and a handle 33 is attached to an upper portion of the valve shaft 10. The compressor 9 is connected to the valve shaft 10 via a cam cylinder 23 so as to be able to reciprocate in the axial direction. A central upper portion of the diaphragm 5 is locked to a lower portion of the compressor 9. A cam pin 21 penetrates the valve shaft 10 in the orthogonal direction, and rollers 22 for smooth operation of a cam mechanism are rotatably attached to both ends of the cam pin 21. The cam pin 21 and the roller 22 are prevented from projecting in the diameter direction by the bonnet 7.
【００１１】図２に示すように、弁軸１０に、直交方向
に延びるボール収容孔１１を穿設し、このボール収容孔
１１にばね１２とボール１３とを内設する。ばね１２と
ボール１３をこの順に挿入した後、ボール収容孔１１の
入口をかしめて、ボール１３の脱落を防止する。ボール
１３は、ばね１２により半径方向外方に付勢され、ボー
ル収容孔１１内において摺動自在であると共に、ボール
収容孔１１から部分的に突出可能である。図１に示すよ
うに、カム筒２３は、上部が円筒状に形成されて、弁軸
１０を軸方向に摺動可能にかつ周方向に回動可能に外嵌
する。カム筒２３の下部には、コンプレッサ９の上部が
掛け止めされる。カム筒２３は、その外周面から突出す
るガイドピン２５がボンネット７の図示しない上下方向
に延びるガイド溝に係合することにより、軸方向に摺動
可能にかつ周方向に回動不能である。As shown in FIG. 2, a ball receiving hole 11 extending in the orthogonal direction is formed in the valve shaft 10, and a spring 12 and a ball 13 are provided in the ball receiving hole 11. After inserting the spring 12 and the ball 13 in this order, the entrance of the ball receiving hole 11 is swaged to prevent the ball 13 from dropping off. The ball 13 is urged radially outward by a spring 12 and is slidable in the ball receiving hole 11 and partially protrudes from the ball receiving hole 11. As shown in FIG. 1, the upper part of the cam cylinder 23 is formed in a cylindrical shape, and externally fits the valve shaft 10 so as to be slidable in the axial direction and rotatable in the circumferential direction. The upper part of the compressor 9 is hooked on the lower part of the cam cylinder 23. The cam cylinder 23 is slidable in the axial direction and non-rotatable in the circumferential direction when the guide pin 25 projecting from the outer peripheral surface thereof engages with a vertically extending guide groove (not shown) of the bonnet 7.
【００１２】図３に示すように、カム筒２３にカム溝２
６を直径方向に２つ配設する。このカム溝２６は、軸心
との直交面に対し斜めに延びる斜行域２７と、斜行域２
７の下端及び上端からそれぞれ相反する方向に延びる全
開域２８及び全閉域２９とから成る。全開域２８は、軸
心との直交面に対して０．１４ｒａｄ（８°）の角度だ
け上方に傾斜し、全閉域２９は０．０９ｒａｄ（５°）
の角度だけ下方に傾斜する。このカム溝２６にカムピン
２１のローラ２２が摺動可能に嵌合する。As shown in FIG. 3, the cam cylinder 23 has
6 are arranged two in the diameter direction. The cam groove 26 has a skew area 27 extending obliquely to a plane perpendicular to the axis, and a skew area 2.
7 comprises a fully open area 28 and a fully closed area 29 extending in opposite directions from the lower end and the upper end, respectively. The fully open area 28 is inclined upward by an angle of 0.14 rad (8 °) with respect to a plane orthogonal to the axis, and the fully closed area 29 is 0.09 rad (5 °).
At an angle of. The roller 22 of the cam pin 21 is slidably fitted in the cam groove 26.
【００１３】次に、上述した急速開閉型ダイヤフラム弁
の作動を、図１ないし図５を参照して説明する。図３に
示すように、ダイヤフラム弁の全開時には、カムピン２
１のローラ２２がカム溝２６の全開域２８に入り込み、
図１に示すように、カム筒２３はその最上点近くまで引
き上げられる。このため、ダイヤフラム５も弁体１の弁
座３から引き離されて、ダイヤフラム弁は全開状態とな
る。図２に示すように、このとき、弁軸１０内のボール
１３は、ばね１２により半径方向外方に付勢されてボー
ル収容孔１１から部分的に突出し、カム溝２６の全閉域
２９側の端部に当接する。このように、ダイヤフラム弁
の全開時に、ボール１３がばね力によりカム溝２６の全
閉域２９側の端部に突出して当接するから、カムピン２
１がカム溝２６の全開域２８から閉弁方向に容易に動き
だすことはない。従って、全開時に、ダイヤフラム弁を
全開位置に安定的に保持することができる。Next, the operation of the above-described quick opening / closing diaphragm valve will be described with reference to FIGS. As shown in FIG. 3, when the diaphragm valve is fully opened, the cam pin 2
The first roller 22 enters the fully open area 28 of the cam groove 26,
As shown in FIG. 1, the cam barrel 23 is pulled up near its uppermost point. Therefore, the diaphragm 5 is also separated from the valve seat 3 of the valve body 1, and the diaphragm valve is fully opened. As shown in FIG. 2, at this time, the ball 13 in the valve shaft 10 is urged radially outward by the spring 12 to partially protrude from the ball housing hole 11, and the cam groove 26 on the fully closed area 29 side of the cam groove 26. Abut the end. As described above, when the diaphragm valve is fully opened, the ball 13 projects and comes into contact with the end of the cam groove 26 on the side of the fully closed area 29 due to the spring force.
1 does not easily move from the fully open area 28 of the cam groove 26 in the valve closing direction. Therefore, when fully opened, the diaphragm valve can be stably held at the fully opened position.
【００１４】図３に示すように、カム溝２６の全開域２
８は、軸心との直交面に対して０．１４ｒａｄ（８°）
だけ上方に傾斜するから、カムピン２１は全開位置から
一旦カム溝２６の山を乗り越えない限り閉弁方向に動く
ことはできない。カム溝２６のこの複雑形状により、カ
ムピン２１がカム溝２６の全開域２８から閉弁方向に容
易には動かず、これによっても全開時にダイヤフラム弁
を全開位置に安定的に保持することができる。As shown in FIG. 3, the fully open area 2 of the cam groove 26
8 is 0.14 rad (8 °) with respect to a plane orthogonal to the axis.
The cam pin 21 cannot move in the valve closing direction unless it climbs over the peak of the cam groove 26 from the fully open position. Due to this complicated shape of the cam groove 26, the cam pin 21 does not easily move in the valve closing direction from the fully open area 28 of the cam groove 26, and thus the diaphragm valve can be stably held at the fully open position when fully opened.
【００１５】次に、ダイヤフラム弁を全閉させるとき
は、図５に示すように、ハンドル３３を全閉位置まで回
転する。図４に示すように、このとき、弁軸１０内のボ
ール１３がカム筒２３によって、図２のばね１２のばね
力に抗してボール収容孔１１内に押し込まれる。これと
共に、カムピン２１のローラ２２が、カム筒２３を全開
位置から一旦上昇させてカム溝２６の山を乗り越え、カ
ム溝２６の斜行域２７を通過して、カム溝２６の全閉域
２９に入り込む。図５に示すように、これにより、カム
筒２３が下降し、ダイヤフラム５を押し下げて弁体１の
弁座３に押圧して、ダイヤフラム弁を閉弁させる。Next, when fully closing the diaphragm valve, the handle 33 is rotated to the fully closed position as shown in FIG. As shown in FIG. 4, at this time, the ball 13 in the valve shaft 10 is pushed into the ball housing hole 11 by the cam cylinder 23 against the spring force of the spring 12 in FIG. At the same time, the roller 22 of the cam pin 21 once raises the cam cylinder 23 from the fully open position, gets over the mountain of the cam groove 26, passes through the sloping area 27 of the cam groove 26, and returns to the fully closed area 29 of the cam groove 26. Get in. As a result, as shown in FIG. 5, the cam cylinder 23 is lowered, and the diaphragm 5 is pushed down and pressed against the valve seat 3 of the valve body 1 to close the diaphragm valve.
【００１６】図３に示すように、カム溝２６の全閉域２
９は、軸心との直交面に対して０．０９ｒａｄ（５°）
だけ下方に傾斜するから、カムピン２１は全閉位置から
一旦カム溝２６の山を乗り越えない限り開弁方向に動く
ことはできない。全閉時には、ダイヤフラム５が弁体１
の弁座３に押圧されて、上方への弾性反発力を発生させ
ているから、この反発力を超える押下げ力がカム筒２３
に作用しない限り、カム筒２３が開弁方向に動きだすこ
とはできない。従って、カムピン２１がカム溝２６の全
閉域２９から開弁方向に容易に動きだすことはなく、全
閉時にダイヤフラム弁を確実に全閉位置に保持すること
ができる。図４に示すように、弁軸１０内のボール１３
は、ボール収容孔１１内に押し込まれた状態で、ばね１
２によりカム筒２３の内周面に当接している。このた
め、ボール１３とカム筒２３との間の摩擦力によって
も、ダイヤフラム弁を全閉位置に安定的に保持すること
ができる。[0016] As shown in FIG.
9 is 0.09 rad (5 °) with respect to a plane perpendicular to the axis.
Therefore, the cam pin 21 cannot move in the valve opening direction from the fully closed position unless it climbs over the peak of the cam groove 26 once. When fully closed, the diaphragm 5 is
Is pressed by the valve seat 3 to generate an upward elastic repulsive force.
, The cam cylinder 23 cannot start moving in the valve opening direction. Therefore, the cam pin 21 does not easily move from the fully closed area 29 of the cam groove 26 in the valve opening direction, and the diaphragm valve can be reliably held at the fully closed position when fully closed. As shown in FIG.
Is pressed into the ball receiving hole 11 and the spring 1
2 makes contact with the inner peripheral surface of the cam cylinder 23. Therefore, the diaphragm valve can be stably held at the fully closed position also by the frictional force between the ball 13 and the cam cylinder 23.
【００１７】ダイヤフラム弁を再び全開させるときは、
図１に示すように、ハンドル３３を全開位置まで閉弁時
とは逆方向に回転する。図３に示すように、このとき、
カムピン２１のローラ２２が、カム筒２３を全閉位置か
ら一旦下降させてカム溝２６の山を乗り越え、カム溝２
６の斜行域２７を通過してカム溝２６の全開域２８に入
り込み、上述した全開時の状態に戻る。When fully opening the diaphragm valve again,
As shown in FIG. 1, the handle 33 rotates to the fully open position in the direction opposite to the direction when the valve is closed. At this time, as shown in FIG.
The roller 22 of the cam pin 21 once lowers the cam cylinder 23 from the fully closed position to get over the peak of the cam groove 26,
6 and enters the fully open area 28 of the cam groove 26 to return to the above-described fully opened state.
【００１８】なお、全開時に係合するボールとボール収
容孔は、必ずしも１組に限定されるものではなく、２組
以上設けてもよい。It should be noted that the number of balls and ball receiving holes engaged when fully opened is not necessarily limited to one set, and two or more sets may be provided.
【００１９】[0019]
【発明の効果】以上詳細に説明したように、本発明の急
速開閉型ダイヤフラム弁は、弁軸に直交方向に延びるボ
ール収容孔を全開時にカム溝の全閉域に開口するように
穿設し、部分的に突出可能なボールとボールを半径方向
外方に付勢するばねとをボール収容孔に内設し、全開時
にボールをカム溝の全閉域側の端部に突出させて当接さ
せたから、全開時にダイヤフラム弁を全開位置に安定的
に保持することができるという優れた効果を奏する。。As described above in detail, the quick opening / closing type diaphragm valve of the present invention is provided with a ball receiving hole extending in a direction perpendicular to the valve shaft so as to open in a fully closed area of the cam groove when fully opened. Because a ball that can partially protrude and a spring that biases the ball radially outward are provided in the ball receiving hole, and when the ball is fully opened, the ball protrudes from the end of the cam groove on the fully closed area side and abuts the ball. In addition, when the diaphragm valve is fully opened, the diaphragm valve can be stably held at the fully opened position. .
【００２０】又は、カム溝は、軸心との直交面に対し斜
めに延びる斜行域と、この斜行域の下端及び上端からそ
れぞれ相反する方向に延びる全開域及び全閉域とから成
り、この全開域を軸心との直交面に対し０．１０ｒａｄ
（６°）以上０．１７ｒａｄ（１０°）以下の角度だけ
上方に傾斜させ、全閉域を軸心との直交面に対し０．０
５ｒａｄ（３°）以上０．１２ｒａｄ（７°）以下の角
度だけ下方に傾斜させたから、全開時にダイヤフラム弁
を全開位置に安定的に保持することができるという優れ
た効果を奏する。Alternatively, the cam groove includes an oblique area extending obliquely with respect to a plane orthogonal to the axis, and a fully open area and a fully closed area extending in opposite directions from a lower end and an upper end of the oblique area. 0.10 rad for the fully open area with respect to the plane perpendicular to the axis
(6 °) or more and an angle of 0.17 rad (10 °) or less, and the total closed area is set at 0.0 to a plane orthogonal to the axis.
Since the diaphragm valve is inclined downward by an angle of 5 rad (3 °) or more and 0.12 rad (7 °) or less, an excellent effect that the diaphragm valve can be stably held at the fully open position when fully opened is achieved.
【図１】本発明に係る急速開閉型ダイヤフラム弁を示す
縦断面図であり、全開位置の状態である。FIG. 1 is a longitudinal sectional view showing a quick opening / closing type diaphragm valve according to the present invention, in a fully opened position.
【図２】図１のII−II線矢視図である。FIG. 2 is a view taken along the line II-II in FIG.
【図３】カム筒の外周面を示す展開図であり、カムピン
が全開位置にある状態を示す。FIG. 3 is a development view showing an outer peripheral surface of the cam cylinder, showing a state where a cam pin is at a fully open position.
【図４】図３と同様の図であり、カムピンが全閉位置に
ある状態を示す。FIG. 4 is a view similar to FIG. 3, showing a state in which a cam pin is in a fully closed position.
【図５】図１と同様の図であり、全閉位置の状態を示
す。FIG. 5 is a view similar to FIG. 1, showing a state of a fully closed position.
１ 弁体、２ 開口部、３ 弁座、５ ダイヤフラム、
７ ボンネット、８キャップ、９ コンプレッサ、１０
弁軸、１１ ボール収容孔、１２ ばね、１３ ボー
ル、２１ カムピン、２２ ローラ、２３ カム筒、２
５ ガイドピン、２６ カム溝、２７ 斜行域、２８
全開域、２９ 全閉域、３０ スラストワッシャ、３１
閉位置調整ねじ、３２ Ｃ形止め輪、３３ ハンドル1 valve body, 2 opening, 3 valve seat, 5 diaphragm,
7 bonnet, 8 caps, 9 compressor, 10
Valve shaft, 11 ball receiving hole, 12 spring, 13 ball, 21 cam pin, 22 roller, 23 cam cylinder, 2
5 guide pin, 26 cam groove, 27 sloping area, 28
Fully open area, 29 Fully closed area, 30 Thrust washer, 31
Closing position adjusting screw, 32 C retaining ring, 33 handle
Claims (3)
（１０）と、前記弁軸に直交方向に取り付けられたカム
ピン（２１）と、前記カムピンに係合するカム溝（２
６）が設けられると共に前記弁軸を軸方向に摺動可能に
かつ周方向に回動可能に外嵌するカム筒（２３）と、前
記カム筒の下部に上部が掛け止めされたコンプレッサ
（９）と、前記コンプレッサに中央上部が取り付けられ
たダイヤフラム（５）とを備えたダイヤフラム弁におい
て、前記弁軸に直交方向に延びるボール収容孔（１１）
を全開時に前記カム溝の全閉域（２９）に開口するよう
に穿設し、部分的に突出可能なボール（１３）と前記ボ
ールを半径方向外方に付勢するばね（１２）とを前記ボ
ール収容孔に内設し、全開時に前記ボールを前記カム溝
の前記全閉域側の端部に突出させて当接させたことを特
徴とする急速開閉型ダイヤフラム弁。1. A valve shaft (10) rotatably supported by a bonnet, a cam pin (21) mounted in a direction orthogonal to the valve shaft, and a cam groove (2) engaged with the cam pin.
6), a cam cylinder (23) externally fitted to the valve shaft so as to be slidable in the axial direction and rotatable in the circumferential direction, and a compressor (9) having an upper portion hooked to a lower portion of the cam cylinder. ) And a diaphragm (5) having a central upper part attached to the compressor, wherein the ball receiving hole (11) extends in a direction orthogonal to the valve shaft.
The cam groove is drilled so as to open to the fully closed area (29) of the cam groove when fully opened, and a partially protruding ball (13) and a spring (12) for urging the ball radially outward are provided. A quick opening / closing diaphragm valve provided in a ball receiving hole, wherein the ball projects and abuts on an end of the cam groove on the side of the fully closed area when fully opened.
（１０）と、前記弁軸に直交方向に取り付けられたカム
ピン（２１）と、前記カムピンに係合するカム溝（２
６）が設けられると共に前記弁軸を軸方向に摺動可能に
かつ周方向に回動可能に外嵌するカム筒（２３）と、前
記カム筒の下部に上部が掛け止めされたコンプレッサ
（９）と、前記コンプレッサに中央上部が取り付けられ
たダイヤフラム（５）とを備えたダイヤフラム弁におい
て、前記カム溝は、斜めに延びる斜行域（２７）と、前
記斜行域の下端及び上端からそれぞれ相反する方向に延
びる全開域（２８）及び全閉域（２９）とから成り、前
記全開域を軸心との直交面に対し０．１０ｒａｄ（６
°）以上０．１７ｒａｄ（１０°）以下の角度だけ上方
に傾斜させ、前記全閉域を軸心との直交面に対し０．０
５ｒａｄ（３°）以上０．１２ｒａｄ（７°）以下の角
度だけ下方に傾斜させたことを特徴とする急速開閉型ダ
イヤフラム弁。2. A valve shaft (10) rotatably supported by a bonnet, a cam pin (21) mounted in a direction orthogonal to the valve shaft, and a cam groove (2) engaged with the cam pin.
6), a cam cylinder (23) externally fitted to the valve shaft so as to be slidable in the axial direction and rotatable in the circumferential direction, and a compressor (9) having an upper portion hooked to a lower portion of the cam cylinder. ) And a diaphragm (5) having a central upper part attached to the compressor, wherein the cam groove has a sloping area (27) extending obliquely and a lower end and an upper end of the sloping area, respectively. It comprises a fully open area (28) and a fully closed area (29) extending in opposite directions, and the fully open area is 0.10 rad (6) with respect to a plane orthogonal to the axis.
°) and 0.17 rad (10 °) or less, and the entire closed area is shifted by 0.0 with respect to a plane orthogonal to the axis.
A quick opening / closing diaphragm valve characterized by being inclined downward by an angle of 5 rad (3 °) or more and 0.12 rad (7 °) or less.
ール収容孔（１１）を全開時に前記カム溝（２６）の全
閉域（２９）に開口するように穿設し、部分的に突出可
能なボール（１３）と前記ボールを半径方向外方に付勢
するばね（１２）とを前記ボール収容孔に内設し、全開
時に前記ボールを前記カム溝の前記全閉域側の端部に突
出させて当接させたことを特徴とする、請求項２に記載
の急速開閉型ダイヤフラム弁。3. A ball receiving hole (11) extending in a direction orthogonal to the valve shaft (10) is formed so as to open to a fully closed area (29) of the cam groove (26) when fully opened, and partially protrudes. A possible ball (13) and a spring (12) for urging the ball outward in the radial direction are provided in the ball receiving hole, and when the ball is fully opened, the ball is placed at the end of the cam groove on the fully closed area side. 3. The quick opening / closing diaphragm valve according to claim 2, wherein the diaphragm valve protrudes and abuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33240399A JP3570620B2 (en) | 1999-11-24 | 1999-11-24 | Rapid opening / closing type diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33240399A JP3570620B2 (en) | 1999-11-24 | 1999-11-24 | Rapid opening / closing type diaphragm valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001146977A true JP2001146977A (en) | 2001-05-29 |
| JP3570620B2 JP3570620B2 (en) | 2004-09-29 |
Family
ID=18254589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33240399A Expired - Lifetime JP3570620B2 (en) | 1999-11-24 | 1999-11-24 | Rapid opening / closing type diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3570620B2 (en) |
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