JPS60249773A - Butterfly valve - Google Patents
Butterfly valveInfo
- Publication number
- JPS60249773A JPS60249773A JP10700784A JP10700784A JPS60249773A JP S60249773 A JPS60249773 A JP S60249773A JP 10700784 A JP10700784 A JP 10700784A JP 10700784 A JP10700784 A JP 10700784A JP S60249773 A JPS60249773 A JP S60249773A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve plate
- plate
- stopper
- shaft
- 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.)
- Pending
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/24—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、小さなトルクで確実な開閉ができて漏れが
なく、長期に使用できるバタフライ弁に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a butterfly valve that can be opened and closed reliably with a small torque, has no leakage, and can be used for a long period of time.
（従来の技術）
従来のバタフライ弁は第６図に示すように弁板の中心に
弁軸が一体的に固定して設けられて弁胴内周の弾性体よ
りなる弁座パツキンに弁板の周囲が喰い込むようにした
ものが一般的である。(Prior art) As shown in Fig. 6, in a conventional butterfly valve, a valve stem is integrally fixed at the center of a valve plate, and the valve plate is attached to a valve seat packing made of an elastic body on the inner periphery of the valve body. It is common for the surrounding area to dig into the area.
この麺式のものはＷ造簡単であるが、弁の開閉に大きな
トルクが必要であり、弁座パツキンが損じ易いのが欠点
である・
また、第７図に示す弁軸が弁板から流れの方向に偏心（
：ｔ）シ、直径方向に偏心（ｖ）シた位置にある二重偏
心型のものもあり、このものは、（ｒ）の方向の偏心鰍
を大きくするとパツキンへの接触に無理が掛らなくなる
点に特徴があるが、弁軸に対して°流体圧力が左右不均
等に掛ることから弁の開閉に大きなトルクが必要となる
逆効果が発生するため、実際的に（Ｆ）方向の偏心屋は
大きくできず、その効果もあまり期待できないとともに
、二重偏心のために加工が離かしく、シかも高い加工精
度が必要となり、加工費が高価となる欠点があった。Although this noodle-type type is easy to make with double-wound construction, it requires a large torque to open and close the valve, and the disadvantage is that the valve seat gasket is easily damaged.In addition, the valve stem shown in Figure 7 does not flow away from the valve plate. Eccentricity in the direction of (
:t) There is also a double eccentric type which is located eccentrically (v) in the diametrical direction, and with this type, increasing the eccentric gill in the direction (r) makes contact with the seal more difficult. However, since fluid pressure is applied unevenly to the left and right sides of the valve stem, the opposite effect occurs in that a large torque is required to open and close the valve, so in practice eccentricity in the (F) direction The center cannot be made large, and its effectiveness cannot be expected to be very great.Due to the double eccentricity, machining is difficult, requiring high machining accuracy, and machining costs are high.
（発明が解決しようとする問題点）
以上の如き従来品の持つ欠点であるパツキンに掛る過大
な無理や、パツキンの短寿命、大きな開閉トルク、高い
加工精度によるコスト高専の問題点を解決して、長寿命
、小トルク開閉、製作容易なバタフライ弁を提供しよう
とするものである。(Problems to be Solved by the Invention) The above-mentioned drawbacks of conventional products such as excessive force applied to the gasket, short life of the gasket, large opening/closing torque, and high machining accuracy have been solved. The present invention aims to provide a butterfly valve that has a long life, low torque opening/closing, and is easy to manufacture.
（問題点を解決するための手段）
の直径方向または直径方向に平行に弁軸を設けたバタフ
ライ弁において、弁軸から離れた位置に、弁軸と平行に
設けた弁板を、エラストマやスプリングの如き弾性材料
からなる弾性連結部材を介して弁軸に連結するとともに
、弁胴の内周に、弁板位置決め用のストッパを設けたバ
タフライ弁であ乏。(Means for solving the problem) In a butterfly valve with a valve shaft installed in the diametrical direction or parallel to the diametrical direction, a valve plate installed parallel to the valve shaft at a position away from the valve shaft is made of elastomer or spring. The butterfly valve is connected to the valve shaft via an elastic connecting member made of an elastic material such as, and is provided with a stopper for positioning the valve plate on the inner periphery of the valve body.
（作用）
このバタフライ弁は弁軸と弁板とが一体的でなくミエラ
ストマやスプリングの如き弾性材料からなる弾性連結部
材によって連結され、この弾性連結部材が弁軸の回転を
弁仮に伝達するものであり、弾性連結部材の弾性によっ
て弁軸と弁板とは若干ずれた動きをすることができる点
が従来品と異る特徴であって１弁軸の回動力で弁板を弁
座に押し付ける時、ずれ得る範囲で弁板がストッパに当
った後の或程度自由な動きが、自動−心的な機能を発揮
して、弁板を弁座に密着させることができるものである
。(Function) In this butterfly valve, the valve stem and valve plate are not integral, but are connected by an elastic connecting member made of an elastic material such as myelastomer or a spring, and this elastic connecting member temporarily transmits the rotation of the valve stem to the valve. It is different from conventional products in that the valve stem and valve plate can move slightly out of alignment due to the elasticity of the elastic connecting member, and when the valve plate is pressed against the valve seat by the rotational force of one valve stem. After the valve plate hits the stopper, the valve plate can move freely to a certain extent within the range of possible deviation, and the valve plate can be brought into close contact with the valve seat by exerting a self-centering function.
従って若干の加工誤差があっても弁板は弁座に全周はぼ
均一な圧力で接するため漏れがなく１バタフライ弁の機
能を満足することができる。Therefore, even if there is a slight manufacturing error, the valve plate contacts the valve seat with almost uniform pressure all around, so there is no leakage and the function of a single butterfly valve can be satisfied.
（実施例）
以下図面にもとづいて本発明の詳細な説明する◎
実施例１
第１図および第２図において、（１）は弁胴で１円筒の
両端にフランジ（２） （２）を有し、内周に円錐形の
当り面を有する弁座（３ンを設けである。(Example) The present invention will be described in detail below based on the drawings. ◎ Example 1 In Figures 1 and 2, (1) is a valve body having flanges (2) (2) at both ends of one cylinder. The valve seat (3) has a conical contact surface on its inner periphery.
（４）は弁軸で弁１１１４ （１）を直径方向に頁通し
、両端を弁胴外で軸受（５バ５）によって支持し、弁軸
（４）の一端は軸受（５）より突出してアクチェータ取
付部（４＆）としである。(4) is a valve shaft that passes through the valve 1114 (1) in the diametrical direction, and both ends are supported by bearings (5 bars) outside the valve body, and one end of the valve shaft (4) protrudes from the bearing (5). This is the actuator mounting part (4&).
（６）は弁板で、弁軸（４）に平行して弁軸より適当な
間隔をもって位置し、弁軸（４）から細心に対して直角
方向に並んで突設した２個の突起（７バ７）との間に為
合成ゴムの如きエラストマからなる弾性連結部材＜８）
（８）を介して弁軸（４）と連結しである〇（９）は
ストッパで弁ｊｏｉｎ （１）の内周の２ケ所に突設し
たストッパ受金９０に螺合して位置の調節をした後ｐツ
クナツト（ロ）によって固定されて、弁板（６）が閉じ
る時の位置決めを果すものである。このストッパ（９ン
を２個所設けたのは弁板（句を安定的に位置決めするた
めで２個所以上であってもよく、また他の条件によって
は１個所であっても機能を果すことができる場合もある
。(6) is a valve plate, which is located parallel to the valve stem (4) at an appropriate distance from the valve stem, and has two protrusions ( 7) An elastic connecting member made of elastomer such as synthetic rubber between bar 7) <8)
It is connected to the valve stem (4) through (8), and (9) is a stopper that screws into the stopper holder 90 protruding from two places on the inner circumference of the valve join (1) to adjust the position. After doing so, it is fixed with a p-nut (b) to position the valve plate (6) when it is closed. This stopper (9) is provided in two places on the valve plate (in order to stably position the phrase, it may be placed in two or more places, and depending on other conditions, even one place may function. In some cases it is possible.
尚前記弁板（６）の外周には、合成ゴムの如きエラスト
マや合成樹脂等からなる弁パツキン（６ａ）を取り付け
て、弁座（３）に密着し易くしたものを図示したが、弁
板（６）は一体の金属とし、弁座’＜ｓ）をパ、ツキン
材で構成してもよく、またパツキンを使用せず、弁座（
３）と弁板（６）の両方を金属とする場合もあり、これ
ら材質の選択は流体の腐蝕性等の性質や温度条件によっ
て決定されるものである。Note that a valve packing (6a) made of elastomer such as synthetic rubber or synthetic resin is attached to the outer periphery of the valve plate (6) to make it easier to adhere to the valve seat (3). (6) may be made of one piece of metal, and the valve seat '<s) may be made of packing material, or the valve seat (6) may be made of a packing material without using a packing material.
3) and the valve plate (6) may be made of metal, and the selection of these materials is determined by the corrosivity and other properties of the fluid and temperature conditions.
図中Ｑ、矢印は原則的な流れの方向を示すものである。The arrow Q in the figure indicates the general direction of flow.
このバタフライ弁は、アクチェータ取付部（４ｍ）に適
当なアクチェータを取り付けて動力または人力により弁
板（６）を開閉するもので、図面は弁板（６）を閉じた
状態を示しており、弁軸（４）を囲動して弁板（６）を
一点ａｍで示す方向に開いて流体を通すものである。This butterfly valve opens and closes the valve plate (6) by power or human power by attaching an appropriate actuator to the actuator mounting part (4 m).The drawing shows the valve plate (6) in a closed state. The valve plate (6) is opened in the direction indicated by a point am by moving the shaft (4) to allow fluid to pass through.
また、エラストマからなる弾性連結部材（８）は、円筒
状のものを２個使用したものを図示したが、形状や数は
限定されることなく、たとえば長方形の板状のものを１
個使用してもよい。In addition, the elastic connecting member (8) made of elastomer is shown using two cylindrical members, but the shape and number are not limited, and for example, one rectangular plate-like member is used.
May be used separately.
弁板（６）を閉じる場合、弁軸（４ンの回転トルクは、
弾性連結部材（８ンによって弁板（６］に伝達され、弁
板（６）がまずストッパ（９）に当るが、この時弁ｊｕ
ｌ （３）と弁板（６）は僅かに隙間を残して未だ接触
しておらず、更に弁軸（４）が囲動すると第５図に示す
ように、弾性連結部材（８）が軸心（４）を中心として
円弧を画き、円弧の接線方向に−く力（Ｐ）の分力（Ｐ
ｌ）および（Ｐ２）が弁板（６）をストッパ（９）に接
したまま分力（Ｐりおよび（Ｐ２）の方向に弁座（３）
に押し付ける。この時弁板（６ノとストッパ（９）との
間に分力（Ｐ２）の方向の移動による滑りが生じる。When closing the valve plate (6), the rotational torque of the valve stem (4) is
It is transmitted to the valve plate (6) by the elastic connecting member (8), and the valve plate (6) first hits the stopper (9), but at this time the valve ju
l (3) and the valve plate (6) are still not in contact with each other with a slight gap left, and when the valve shaft (4) further moves around, the elastic connecting member (8) will close to the shaft as shown in Figure 5. Draw a circular arc centered on the center (4), and calculate the component force (P) of the force (P) in the tangential direction of the circular arc.
l) and (P2) are applied to the valve seat (3) in the direction of component force (P and (P2)) while keeping the valve plate (6) in contact with the stopper (9).
to press against. At this time, slippage occurs between the valve plate (6) and the stopper (9) due to movement in the direction of component force (P2).
このように２方向に弁板（りの押し付けを可能にするの
が、ストッパ（９）および弾性連結部材（８）の弾力で
あり、この弾力が成程度弁板（６）に自白性を付与する
ことにより、自動調心的な機能を発揮させることになっ
て、弁板（６）を弁座（３）に緊密な密着を可能にする
ものであり、この密着は弁座（３ンに弁板（りを単に押
し付けるものであるから、従来の弁板が弁座パツキンを
こすりながら、無理矢理に弁座パツキンに喰い込ませる
ような厳しい作用が無いから、弁パツキン（６ａ）が損
傷せず、長期の使用に耐えるとともに、開閉に必要なト
ルクも小さくて済むものである。It is the elasticity of the stopper (9) and the elastic connecting member (8) that allows the valve plate (6) to be pressed in two directions in this way, and this elasticity gives the valve plate (6) self-explanatory properties. By doing so, a self-aligning function is achieved and the valve plate (6) is brought into close contact with the valve seat (3). Since the valve plate (6a) is simply pressed against the valve plate, there is no harsh action such as the conventional valve plate rubbing against the valve seat seal and forcing it into the valve seat seal, so the valve seal (6a) is not damaged. It can withstand long-term use and requires less torque for opening and closing.
また弁軸（４）の僅かの回転で弁板（６）の全周が同時
に弁座（３）に接したり離れたりするので、弁の早閉め
、早開きが可能となりバタフライ弁の杢米の機能を満足
し得るものである。In addition, with a slight rotation of the valve stem (4), the entire circumference of the valve plate (6) simultaneously contacts and separates from the valve seat (3), making it possible to close and open the valve quickly. The function can be satisfied.
実施例２
第８図および第４図は、別の実施例を示すもので、前記
した第１図、第２図に示す実施例１のエラストマかうな
る弾性連結部材（つ（８）に代って板スプリングからな
る弾性連結部材（８ａ）を使用したもので、作用・効果
は、実施例１・とほとんど同様であるが、使用する流体
がｗｔｍの場合、エラストマ製の弾性連結部材では熱に
耐えられず使用できないような場合に、この板スプリン
グ製の弾性連結部材が使用される。Embodiment 2 FIGS. 8 and 4 show another embodiment, in which the elastic connecting member (8) made of the elastomer of Embodiment 1 shown in FIGS. 1 and 2 was replaced. The elastic connecting member (8a) made of a plate spring is used, and the operation and effect are almost the same as in Example 1. However, when the fluid used is wtm, the elastic connecting member made of elastomer is not sensitive to heat. This elastic connection member made of a plate spring is used in cases where it cannot be used due to unbearable conditions.
この場合も第１図、第２図と同様にストツバ（９）を２
個所設けたものを図示したが、板スプリングの弾性は一
方向のみと見做すことができるから、ストッパ（９ンは
１個所であってもよし）。In this case as well, as in Figures 1 and 2, set the stopper (9) to 2.
Although the illustration shows a plate spring provided at several locations, it can be assumed that the elasticity of the plate spring is only in one direction, so the stopper may be provided at one location.
（発明の効果）
本発明は以上説明した通り１自動調心的な機能により、
シール性が良好となって漏れがなく、弁の開閉に無理が
ないため開閉トルクも小さくて済み、パツキンの損傷も
少くて長期の使用に耐え１従来過大な負荷によって使用
できなかったパツキン材も使用可能となり、さらに製作
上も高い加工精度の必要がないため加工費も廉価となる
等、多くの使用上並びに経済的な効果を奏するものであ
る０(Effects of the Invention) As explained above, the present invention has the following features:
The sealing properties are good, there is no leakage, the opening and closing of the valve is easy, so the opening/closing torque is small, and there is little damage to the packing, making it durable for long-term use. It has many usable and economical effects, such as being able to use it, and also reducing processing costs because it does not require high processing precision in manufacturing.
第１図は本発明の一実施例を示す正面図、第２図は第１
図Ａ−Ａ線断面図、第８図は別の実施例を示す正面図、
第４図は第８図Ｂ−Ｂｍ断面図、第５図は弁板が閉じる
時の状態を説明するための第２図を拡大した図、第６図
、第７図は従来品の例を示す第２図と同様の断面図であ
る。
１・・弁胴 ２・・フランジ ８・・弁座４・・アクチ
ェータ取付部 ５・・軸受６・・弁板 ６ａ・・弁パツ
キン ７・・突起８．８ａ・・弾性連結部材 ９・・ス
トッパ１０・・ストッパ受金 １１・・ロックナツト特
許出願人 ダイニー技研株式会社
第１図
第３図
第４図
第５図
第６図
メ
第７図FIG. 1 is a front view showing one embodiment of the present invention, and FIG. 2 is a front view showing one embodiment of the present invention.
A sectional view taken along the line A-A, FIG. 8 is a front view showing another embodiment,
Figure 4 is a sectional view taken along line B-Bm in Figure 8, Figure 5 is an enlarged view of Figure 2 to explain the state when the valve plate is closed, and Figures 6 and 7 are examples of conventional products. FIG. 2 is a cross-sectional view similar to FIG. 2 shown in FIG. 1. Valve body 2. Flange 8. Valve seat 4. Actuator mounting portion 5. Bearing 6. Valve plate 6a. Valve seal 7. Protrusion 8.8a. Elastic connection member 9. Stopper 10... Stopper receiver 11... Lock nut patent applicant Dyney Giken Co., Ltd. Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7
Claims (1)
と、弁胴の外周を貫通する方向に弁軸を設けたバタフラ
イ弁において、弁軸から離れた位置に、弁軸と平行に設
けた弁板を、エラストマやスプリングの如き弾性材料か
らなる弾性連結部材を介して弁軸に連結するとともに、
弁胴の内周に、弁板位置決め用のストッパを設けたこと
を特徴とする、バタフライ弁。A butterfly valve has a valve seat on the inner periphery of the valve body that has an inner circumferential surface that is not parallel to the valve body axis, and a valve stem that runs through the outer periphery of the valve body. A valve plate provided parallel to the shaft is connected to the valve shaft via an elastic connecting member made of an elastic material such as an elastomer or a spring, and
A butterfly valve characterized by having a stopper for positioning the valve plate on the inner circumference of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10700784A JPS60249773A (en) | 1984-05-25 | 1984-05-25 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10700784A JPS60249773A (en) | 1984-05-25 | 1984-05-25 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60249773A true JPS60249773A (en) | 1985-12-10 |
Family
ID=14448128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10700784A Pending JPS60249773A (en) | 1984-05-25 | 1984-05-25 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60249773A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101456010B1 (en) * | 2014-03-31 | 2014-11-04 | 박정준 | A butterfly valve for transformer |
| WO2017208603A1 (en) * | 2016-06-01 | 2017-12-07 | 愛三工業株式会社 | Double eccentric valve |
| JP2017219191A (en) * | 2016-06-01 | 2017-12-14 | 愛三工業株式会社 | Double eccentric valve |
| JP2018066386A (en) * | 2016-10-17 | 2018-04-26 | 愛三工業株式会社 | Double-eccentric valve |
| JP2021102982A (en) * | 2019-12-25 | 2021-07-15 | 愛三工業株式会社 | Valve device |
-
1984
- 1984-05-25 JP JP10700784A patent/JPS60249773A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101456010B1 (en) * | 2014-03-31 | 2014-11-04 | 박정준 | A butterfly valve for transformer |
| WO2017208603A1 (en) * | 2016-06-01 | 2017-12-07 | 愛三工業株式会社 | Double eccentric valve |
| JP2017219191A (en) * | 2016-06-01 | 2017-12-14 | 愛三工業株式会社 | Double eccentric valve |
| CN109196256A (en) * | 2016-06-01 | 2019-01-11 | 爱三工业株式会社 | Double eccentric valves |
| US20190136981A1 (en) * | 2016-06-01 | 2019-05-09 | Aisan Kogyo Kabushiki Kaisha | Double eccentric valve |
| JP2018066386A (en) * | 2016-10-17 | 2018-04-26 | 愛三工業株式会社 | Double-eccentric valve |
| JP2021102982A (en) * | 2019-12-25 | 2021-07-15 | 愛三工業株式会社 | Valve device |
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