JPH026950B2 - - Google Patents
Info
- Publication number
- JPH026950B2 JPH026950B2 JP56126265A JP12626581A JPH026950B2 JP H026950 B2 JPH026950 B2 JP H026950B2 JP 56126265 A JP56126265 A JP 56126265A JP 12626581 A JP12626581 A JP 12626581A JP H026950 B2 JPH026950 B2 JP H026950B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- valve stem
- stem
- casing
- 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
- 239000012530 fluid Substances 0.000 claims description 12
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 7
- 230000002411 adverse Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は弁の開閉時に弁体と弁座を摺接させる
ことなく作動させることができるストツプバタフ
ライ弁に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a stop butterfly valve that can be operated without sliding contact between the valve body and the valve seat when opening and closing the valve.
（従来の技術）
従来、この種バタフライ弁としては、例えば特
公昭46−014779号公報所載のものが存在する。(Prior Art) Conventionally, as this type of butterfly valve, there exists, for example, the one described in Japanese Patent Publication No. 46-014779.
この従来のものは、第６図の如く弁体９ａの下
端部５０をケーシング１ａ内で回転可能に支持さ
せて、該弁体９ａの上端側の筒状部５１をケーシ
ング１ａの上部に挿通された弁棒４ｅの下端に形
成された傾斜部３０にスライド自在に外嵌させた
ものである。当該バルブでは、弁棒４ｅをその上
部のハンドル３２の操作により昇降させることに
より該弁棒４ｅの傾斜部３０に筒状部５１が外嵌
された弁体９ａが弁座３ａと対面する方向に揺動
して該弁座３ａと着脱自在となる。また、該弁体
９ａが弁座３ａと離反した際に他のハンドル３１
の操作によつて弁棒４ｅを回転させることによ
り、弁体９ａを弁座３ａに接触させることなく回
転させることができる。よつて、弁開閉時の弁体
９ａの摩耗が防止でき、又操作性の向上が図れる
利点が得られる。 In this conventional device, as shown in FIG. 6, the lower end 50 of the valve body 9a is rotatably supported within the casing 1a, and the cylindrical portion 51 on the upper end side of the valve body 9a is inserted into the upper part of the casing 1a. The valve stem 4e is slidably fitted onto an inclined portion 30 formed at the lower end of the valve stem 4e. In this valve, by raising and lowering the valve stem 4e by operating the handle 32 on the upper part thereof, the valve body 9a, which has the cylindrical part 51 fitted onto the inclined part 30 of the valve stem 4e, faces the valve seat 3a. It swings and becomes detachable from the valve seat 3a. Also, when the valve body 9a separates from the valve seat 3a, the other handle 31
By rotating the valve stem 4e by the above operation, the valve body 9a can be rotated without coming into contact with the valve seat 3a. Therefore, it is possible to prevent the valve body 9a from being worn out when the valve is opened and closed, and there is an advantage that operability can be improved.
（発明が解決しようとする課題）
しかしながら、前記従来のものでは、弁体９ａ
の動作規制を行うための弁棒４ｅの傾斜部３０を
ケーシング１ａ内に配置させた状態で設けねばな
らいために、該傾斜部３０と弁体９ａの上端部の
筒状部５１との嵌合部分がケーシング１ａ内を流
通する流体の悪影響を受けて、弁開閉操作に障害
を来す虞れを有していた。即ち、ケーシング１ａ
内にスラリー状又は粉粒状の物質が流入する場合
には前記嵌合部分に噛み込みを生じて弁開閉操作
が不可能となる様な問題点を生じる。(Problem to be Solved by the Invention) However, in the conventional valve body 9a,
Since the inclined portion 30 of the valve stem 4e for regulating the operation must be provided within the casing 1a, the fitting between the inclined portion 30 and the cylindrical portion 51 at the upper end of the valve body 9a is difficult. There was a risk that the valve opening/closing operation would be hindered by the adverse effects of the fluid flowing within the casing 1a. That is, the casing 1a
If a slurry-like or powder-like substance flows into the valve, the fitting portion may become jammed, resulting in a problem that the valve cannot be opened or closed.
また、前記従来の手段では弁体９ａを水平方向
（矢印Ａ方向）に変移させて弁座３ａと着脱させ
るにも拘わらずこの動作は弁棒４ａの傾斜部３０
の上下方向（矢印Ｂ方向）の移動により行わせて
なるために、当該弁棒４ａの力の作用効率が非常
に悪く、弁体９ａを弁座３ａと着脱させる作業に
大きな力を要し、その操作性に於いて問題点を有
していた。これは、ケーシング１ａ内の流体圧が
高圧となればなる程深刻な問題となり、又弁開閉
操作を機械化させる場合には当該駆動機構の出力
を増大させる必要性からその大型化を招来する如
き不都合を生じていたのである。 Further, in the conventional means, although the valve body 9a is moved in the horizontal direction (in the direction of arrow A) to be attached to and detached from the valve seat 3a, this operation is not performed by the inclined portion 30 of the valve stem 4a.
Since this is done by moving the valve body 9a in the vertical direction (in the direction of arrow B), the efficiency of the force acting on the valve stem 4a is very poor, and a large amount of force is required to attach and detach the valve body 9a from the valve seat 3a. There were problems with its operability. This problem becomes more serious as the fluid pressure inside the casing 1a becomes higher, and when the valve opening/closing operation is mechanized, it is necessary to increase the output of the drive mechanism, resulting in an inconvenience such as an increase in the size of the drive mechanism. was occurring.
それ故、本発明はケーシング内の流体の悪影響
によつて弁開閉の操作性を悪化させず、又弁体操
作に要する力を減少可能なものとして、小さな力
でスムースな弁開閉操作を行わせることを、その
目的とする。 Therefore, the present invention does not deteriorate the operability of opening and closing the valve due to the adverse effects of the fluid in the casing, and can reduce the force required to operate the valve body, so that the valve can be opened and closed smoothly with a small force. That is its purpose.
（課題を解決するための手段）
本発明は弁座への弁体の着脱作業を該弁体の動
作方向と同方向の弁棒移動動作により行わせて、
その操作に要する力の作用効率を高め、又弁体と
弁棒とをケーシング内で複雑且つ精密な状態で連
結させる必要性を無くすることにより、上記従来
の課題を解決せんとするものである。(Means for Solving the Problems) The present invention allows the operation of attaching and detaching the valve body to the valve seat to be performed by moving the valve stem in the same direction as the operating direction of the valve body,
This invention aims to solve the above-mentioned conventional problems by increasing the efficiency of the force required for the operation and eliminating the need to connect the valve body and valve stem in a complicated and precise manner within the casing. .
すなわち、本発明は、ケーシング１の他端部側
に設けた軸受用孔２０に球面状膨出部７が形成さ
れた弁棒４を挿通して設けて、該弁棒４がその球
面状膨出部７を支点として揺動と回転との両動作
が自在となるべく前記球面状膨出部７を軸受用孔
２０内に介装された軸受部材５にて支持させ、し
かも前記弁棒４の先端部４ｂ側には、弁座３と離
反した状態の弁体９を弁棒４の回転動作により回
転可能とすべく弁体９の他端部９ｂ側に装着され
たピン１１を嵌入させて前記弁体９と弁棒４との
両者を連結するための長孔１６が穿設されてなる
と共に、該長孔１６は、弁体９と弁座３との対面
方向と同方向に沿う弁棒４の揺動動作により弁体
９を揺動させて弁座３に着脱可能とすべく弁棒４
の軸長方向と同方向に沿つた長孔として形成され
てなる、ストツプバタフライ弁である。 That is, the present invention provides a bearing hole 20 provided at the other end of the casing 1 by inserting the valve stem 4 in which the spherical bulge 7 is formed. The spherical bulge 7 is supported by a bearing member 5 inserted in the bearing hole 20 so that it can freely swing and rotate with the bulge 7 as a fulcrum. A pin 11 attached to the other end 9b of the valve body 9 is fitted into the tip 4b so that the valve body 9 separated from the valve seat 3 can be rotated by the rotational action of the valve stem 4. A long hole 16 for connecting both the valve body 9 and the valve stem 4 is bored, and the long hole 16 extends in the same direction as the direction in which the valve body 9 and the valve seat 3 face each other. The valve rod 4 is designed to swing the valve body 9 by the swinging action of the rod 4 so that it can be attached to and removed from the valve seat 3.
This is a stop butterfly valve formed as a long hole along the same direction as the axial direction of the stop butterfly valve.
（作用）
上記構成のバタフライ弁に於いては、弁棒４を
その球面状膨出部７を支点として揺動させること
により弁体９を弁座３に着脱でき、又その離反状
態で弁棒４を回転させることにより弁体９を弁座
３に摺接させることなく開口部２の開口面積を増
減させることができる。(Function) In the butterfly valve configured as described above, the valve body 9 can be attached to and detached from the valve seat 3 by swinging the valve stem 4 using its spherical bulge 7 as a fulcrum, and in the separated state, the valve stem By rotating the valve 4, the opening area of the opening 2 can be increased or decreased without the valve body 9 coming into sliding contact with the valve seat 3.
而して、弁棒４の球面状膨出部７はケーシング
１の側壁の軸受用孔２０内の軸受部材５にて支持
されてケーシング１内に配置されていないから、
ケーシング１内の流体の悪影響を直接受けること
が回避される。よつて、ケーシング１内の流体が
スラリーや粉粒体であつてもこれらによつて弁棒
４の動作に支障が生じない。また、弁棒４の先端
部４ｂと弁体９との連結に際しては何ら精密な連
結手段を採用する必要性がないから、当該連結部
位に於いては粉粒状の流体の噛み込み等に原因す
る動作不良を適切に解消できることとなる。 Since the spherical bulge 7 of the valve stem 4 is supported by the bearing member 5 in the bearing hole 20 in the side wall of the casing 1 and is not disposed inside the casing 1,
Direct adverse effects of the fluid within the casing 1 are avoided. Therefore, even if the fluid in the casing 1 is slurry or powder, the operation of the valve stem 4 will not be hindered by these. In addition, since there is no need to employ any precise connection means when connecting the tip 4b of the valve stem 4 and the valve body 9, there is no need to use any precise connection means, so particles or particles of fluid may get caught in the connection area. Malfunctions can be appropriately resolved.
更に、弁体９は弁座３との着脱を弁棒４の揺動
方向と同方向に沿う揺動動作により行うために、
弁棒４の操作力は弁体９の弁座３への圧接力とし
て有効に作用し、その操作力の作用方向に無駄が
生じない。しかも、弁体９を揺動させるための弁
棒４の揺動は球面状膨出部７を支点として行われ
るために、この弁棒の揺動動作に必要な力はテコ
の原理により小さくできることとなる。よつて、
弁体の開閉を行う際の弁棒４の操作力は小さくて
済み、非常にスムースに行え、又弱い操作力で弁
体９を弁座３に対して強固に圧接させることがで
きてその密封シール性を良好にできるのである。 Furthermore, since the valve body 9 is attached to and detached from the valve seat 3 by a swinging motion along the same direction as the swinging direction of the valve stem 4,
The operating force of the valve stem 4 acts effectively as a pressing force of the valve body 9 against the valve seat 3, and there is no waste in the acting direction of the operating force. Moreover, since the valve stem 4 swings to swing the valve body 9 using the spherical bulge 7 as a fulcrum, the force required for swinging the valve stem can be reduced by the lever principle. becomes. Then,
The operating force of the valve stem 4 when opening and closing the valve body is small and can be done very smoothly, and the valve body 9 can be firmly pressed against the valve seat 3 with a small operating force, resulting in a tight seal. This allows for good sealing performance.
（実施例） 以下本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
第１図及び第２図中、１は上面部に開設された
開口部２の周縁に弁座３を設けてなるケーシング
を示す。９は前記開口部２を開閉するための弁体
で、その背面側にはボス１０，１４が突設されて
いる。１２はケーシング１の側壁の一端部側に回
転可能に装着されたシヤフトで、その先端部には
弁体９の一端部９ａ側のボス１４がピン１５にて
軸着されている。 In FIGS. 1 and 2, reference numeral 1 designates a casing in which a valve seat 3 is provided around the periphery of an opening 2 formed in the upper surface. Numeral 9 is a valve body for opening and closing the opening 2, and bosses 10 and 14 are provided protruding from the back side of the valve body. Reference numeral 12 denotes a shaft rotatably mounted on one end of the side wall of the casing 1, and a boss 14 on the one end 9a side of the valve body 9 is pivotally attached to the tip of the shaft with a pin 15.
４はケーシング１の他端側の壁面に形成された
軸受用孔２０内に挿通された球面状膨出部７を有
する弁棒で、該弁棒４はその球面状膨出部７が軸
受用孔２０内に別途介装されたグランドシール５
に嵌装され、又シール用Ｏリング８にて軸シール
された状態で該球面状膨出部７を支点として偏芯
揺動並びに回転可能である。１１は弁体９の他端
部９ｂ側のボス１０に支持装着されたピンで、該
ピン１１は弁棒４の先端部４ｂに弁棒４の軸長方
向に沿つて穿設された長孔１６に移動可能に嵌入
され、これによつて弁棒４と弁体９とは相互に連
結されている。 Reference numeral 4 denotes a valve stem having a spherical bulge 7 inserted into a bearing hole 20 formed in the wall surface on the other end side of the casing 1; A gland seal 5 separately installed in the hole 20
The spherical bulge 7 is fitted into the spherical bulge 7 as a fulcrum and can eccentrically swing and rotate while being shaft-sealed with a sealing O-ring 8. Reference numeral 11 denotes a pin that is supported and attached to a boss 10 on the other end 9b side of the valve body 9, and the pin 11 is a long hole bored in the tip 4b of the valve stem 4 along the axial direction of the valve stem 4. 16 so that the valve stem 4 and the valve body 9 are connected to each other.
６は弁棒４の外端部４ａに連結して設けられた
アクチユエータで、これは弁棒４の回転及び外端
部４ａ側の昇降を行う機能を具備するものであ
る。当該アクチユエータ６の具体例としては、例
えば特開昭51−57377号公報所載のものがその一
例として適用できる。これは第５図の様に、シリ
ンダ４０内に円筒カム４１を空気圧の導入によつ
て往復動自在となるべく設けて、円筒カム４１の
一方の螺旋状のカム溝４２にはピン４３を固定さ
せて円筒カム４１の往復動の際には回転動作を伴
う様にし、又他方の直接部と屈曲部を連接したカ
ム溝４４には弁棒４と直接又は間接的に連結され
たロツド４５のカムフオロア４６を嵌入係止させ
たものである。当該アクチユエータ６では、同図
イの如くカムフオロア４６がカム溝４４の直線部
に位置する際にはロツド４５及び弁棒４を回転さ
せるが、同図ロの如くカム溝４４の屈曲部に位置
する際にはロツド４５及び弁棒４を偏芯揺動させ
るのである。 An actuator 6 is connected to the outer end 4a of the valve stem 4, and has the function of rotating the valve stem 4 and moving the outer end 4a up and down. As a specific example of the actuator 6, the one disclosed in Japanese Patent Application Laid-Open No. 51-57377 can be applied. As shown in FIG. 5, a cylindrical cam 41 is provided in a cylinder 40 so as to be able to reciprocate as much as possible by introducing air pressure, and a pin 43 is fixed to one spiral cam groove 42 of the cylindrical cam 41. The reciprocating movement of the cylindrical cam 41 is accompanied by a rotational movement, and a cam follower of a rod 45 connected directly or indirectly to the valve stem 4 is provided in the cam groove 44 connecting the other direct part and the bent part. 46 is fitted and locked. In this actuator 6, when the cam follower 46 is located in the straight part of the cam groove 44 as shown in FIG. In this case, the rod 45 and the valve stem 4 are eccentrically swung.
本実施例は以上の構成からなり、次にその使用
例並びに作用について説明する。 The present embodiment has the above configuration, and next, an example of its use and operation will be explained.
先ず、第１図の弁閉状態からアクチユエータ６
を作動させて弁棒４の外側端部４ａを矢印イ方向
に上昇させると、弁棒４は球面状膨出部７を支点
として上下方向に揺動し、その先端部４ｂが矢印
ロ方向に下降する。その結果、弁体９が第３図の
如くピン１５を支点として揺動下降し、弁座３か
ら離脱する。次に、前記弁体９の離脱状態に於い
てアクチユエータ６の作動により弁棒４を例えば
90度回転させれば、前記弁体９は弁座３とは何ら
摺接することなく第４図の如く回転し、これによ
つて開口部２が開口する。弁閉作業は前記一連の
弁開放操作とは逆の弁棒操作を行えばよい。 First, from the valve closed state shown in FIG.
When the outer end 4a of the valve stem 4 is raised in the direction of arrow A, the valve stem 4 swings vertically about the spherical bulge 7 as a fulcrum, and its tip 4b moves in the direction of arrow B. descend. As a result, the valve body 9 swings downward using the pin 15 as a fulcrum, as shown in FIG. 3, and separates from the valve seat 3. Next, in the detached state of the valve body 9, the actuator 6 is operated to move the valve stem 4, for example.
When rotated by 90 degrees, the valve body 9 rotates as shown in FIG. 4 without making any sliding contact with the valve seat 3, thereby opening the opening 2. The valve closing operation may be performed by operating the valve stem in the opposite manner to the series of valve opening operations described above.
而して、上記弁棒４の揺動動作に追随する弁体
９は、弁棒４の先端部４ｂの上下揺動方向と同方
向に移動して弁座３に着脱するために、該弁棒４
の移動方向と弁体９との移動方向に無駄がなく、
力の伝達効率がよい。よつて、弁棒４の操作には
さほど大きな力を要しない。 The valve body 9, which follows the swinging motion of the valve stem 4, moves in the same direction as the vertical swing direction of the tip portion 4b of the valve stem 4, and is attached to and detached from the valve seat 3. stick 4
There is no waste in the moving direction of the valve body 9 and the moving direction of the valve body 9.
Good power transmission efficiency. Therefore, operating the valve stem 4 does not require much force.
また、球面状膨出部７の中心位置からピン１１
迄の寸法よりも、球面状膨出部７からアクチユエ
ータ６の力が作用する弁棒４の外側端部４ａ迄の
寸法を大きくすれば、該弁棒４の外側端部４ａに
作用する操作力をテコの原理により増幅させた状
態で弁棒４の先端部４ｂ側に作用させ得ることと
なる。よつて、弁体９を弁座３に着脱させる作業
は弁棒４の弱い操作力で一層スムースに行え、又
弁座３への弁体９の圧接力も非常に大きくできて
その弁閉が確実に行えるのである。 Also, from the center position of the spherical bulge 7 to the pin 11
If the dimension from the spherical bulge 7 to the outer end 4a of the valve stem 4 on which the force of the actuator 6 acts is made larger than the previous dimension, the operating force acting on the outer end 4a of the valve stem 4 can be increased. can be applied to the tip 4b of the valve stem 4 in an amplified state based on the lever principle. Therefore, the operation of attaching and detaching the valve body 9 to the valve seat 3 can be performed more smoothly with a weak operating force of the valve stem 4, and the pressure of the valve body 9 against the valve seat 3 can be made very large, so that the valve can be closed reliably. It can be done.
更に、上記弁棒４の球面状膨出部７は弁開閉動
作を行う上で重要な動作性が要求されるものであ
るが、当該部位はグランドシール５及びＯリング
８で完全なシール状態にあり適切に保護されてい
る。また、ケーシング１内の流体は弁体９の支持
を行うためのピン１１，１５等には接触するが、
該ピン１１，１５は只単に弁体９をシヤフト１２
及び弁棒４に対して回転可能に連結させればよい
だけであるから、仮に該ピン１１，１５に粉粒体
等の詰まりを生じてもこれによつて弁開閉操作に
支障が生じる程の実害はないのである。 Furthermore, the spherical bulge 7 of the valve stem 4 requires important operability when opening and closing the valve, and this part is completely sealed with the gland seal 5 and O-ring 8. Yes, and properly protected. Furthermore, the fluid inside the casing 1 comes into contact with the pins 11, 15, etc. for supporting the valve body 9;
The pins 11 and 15 simply connect the valve body 9 to the shaft 12.
Since it is only necessary to connect the pins 11 and 15 rotatably to the valve stem 4, even if the pins 11 and 15 become clogged with powder or granules, there is no need to prevent the pins 11 and 15 from being clogged to the extent that they interfere with the valve opening/closing operation. There is no actual harm caused.
尚、上記実施例では、弁棒４を揺動及び回転さ
せる手段として複合アクチユエータを使用した
が、本発明はこれに限定されず、例えば手動操作
でも何ら構わない。弁棒４の具体的な操作手段は
問わない。 In the above embodiment, a composite actuator is used as a means for swinging and rotating the valve stem 4, but the present invention is not limited to this, and manual operation may also be used. The specific operating means for the valve stem 4 does not matter.
また、上記実施例ではケーシング１を水平に設
けて流体を上下方向に流動させてなるが、本発明
はケーシング１の取付姿勢等は問わない。例えば
前記実施例とは直交する姿勢状態に設ける等して
もよい。 Further, in the above embodiment, the casing 1 is provided horizontally and the fluid is caused to flow in the vertical direction, but the present invention does not limit the mounting orientation of the casing 1. For example, it may be provided in a posture orthogonal to that of the above embodiment.
その他、本発明は弁棒、弁体、球面状膨出部を
支持する軸受部材、及びこれらの連結手段等、各
部の具体的な構成は全て本発明の意図する範囲内
で任意に設計変更自在である。 In addition, the present invention allows the design of the specific configuration of each part, such as the valve stem, the valve body, the bearing member that supports the spherical bulge, and the means for connecting these parts, to be freely changed within the scope of the present invention. It is.
（発明の効果）
叙上の様に、本発明は球面状膨出部を有する弁
棒を揺動自在に設けて、該弁棒に連結させた弁体
を弁棒の揺動方向と同方向に揺動させることによ
り該弁体を弁座に着脱させる様にしたために、従
来の弁棒の移動方向と弁体との移動方向が異なる
動作手段と比較すると、その操作力の伝達効率が
非常に良好で弁開閉時の弁棒の操作に要する力を
小さくできて、その操作作業をスムースにできる
という格別な効果を有するに至つた。(Effects of the Invention) As described above, the present invention provides a valve stem having a spherical bulge so as to be swingable, and a valve body connected to the valve stem is moved in the same direction as the swinging direction of the valve stem. Since the valve body is attached to and removed from the valve seat by swinging the valve body, the operating force transmission efficiency is extremely high compared to conventional operating means in which the direction of movement of the valve stem and the direction of movement of the valve body are different. This has resulted in a special effect in that the force required to operate the valve stem when opening and closing the valve can be reduced and the operation work can be performed smoothly.
しかも、本発明では弁体と弁座との着脱を弁棒
の球面状膨出部を支点とする揺動動作により行え
るために、該弁棒の揺動操作はテコの原理により
弁棒と弁体との連結位置に必要な力よりも小さい
力で行えることとなり、弁開閉操作性を従来に比
して一層良好にできて、弁開閉操作の機械化を図
る様な場合には当該駆動源の小型化が図れる他、
弱い力で弁体を弁座に強固に圧接させることがで
きて弁の閉塞シールを確実なものにできる効果が
ある。 Moreover, in the present invention, since the valve body and the valve seat can be attached and detached by a swinging motion using the spherical bulge of the valve stem as a fulcrum, the swinging operation of the valve stem is performed by the lever principle. This means that the valve can be opened and closed with a smaller force than required for the connection position with the body, and the operability of the valve opening and closing can be improved compared to the conventional method. In addition to being smaller,
The valve body can be firmly pressed against the valve seat with a weak force, which has the effect of ensuring the valve is closed and sealed.
また、本発明では弁棒に設けた球面状膨出部を
ケーシングの軸受用孔内に介装された軸受部材で
支持させて、弁体を操作する上で重要な支点とな
る球面状膨出部をケーシング内の流体と遮断でき
る様にしたために、何ら従来の如く弁体の動作制
御を行うための重要な部分が流体に触れて錆びを
生じたり或いは粉粒体等が噛み込みを生じてその
操作性を悪化させる様なことがなく、流体の影響
による弁棒の操作性及び弁体の開閉性の悪化も適
切に解消できる優れた効果を有するに至つた。 In addition, in the present invention, the spherical bulge provided on the valve stem is supported by a bearing member inserted in the bearing hole of the casing, and the spherical bulge serves as an important fulcrum when operating the valve body. Since the part can be isolated from the fluid in the casing, there is no possibility that the important part for controlling the operation of the valve body will come into contact with the fluid and rust, or particles etc. will get caught. There is no deterioration in the operability, and it has an excellent effect of appropriately eliminating deterioration in the operability of the valve stem and the opening/closing performance of the valve body due to the influence of fluid.
第１図及び第２図は本発明に係るバタフライ弁
の一実施例を示し、第１図は弁閉状態の平面図、
第２図はその要部断面図。第３図及び第４図は弁
の作動状態を示し、第３図は弁体が弁座から離脱
した状態の要部断面図、第４図は弁開口状態の平
面図。第５図イ，ロはアクチユエータの一例を示
す要部断面図。第６図は従来例を示す断面図。
１……ケーシング、３……弁座、４……弁棒、
５……軸受部材、９……弁体、２０……軸受用
孔。
1 and 2 show an embodiment of the butterfly valve according to the present invention, and FIG. 1 is a plan view of the valve in the closed state;
Figure 2 is a sectional view of the main part. 3 and 4 show the operating state of the valve, FIG. 3 is a sectional view of the main part with the valve body removed from the valve seat, and FIG. 4 is a plan view of the valve in the open state. FIGS. 5A and 5B are sectional views of essential parts showing an example of an actuator. FIG. 6 is a sectional view showing a conventional example. 1...Casing, 3...Valve seat, 4...Valve stem,
5... Bearing member, 9... Valve body, 20... Bearing hole.
Claims (1)
部２を開閉するための弁体９が該開口部２の周縁
に設けられた弁座３に対面して配置されて、該弁
体９の一端部９ａ側が該弁体９を回転並びに揺動
可能とすべくケーシング１の一端部側に支持され
てなるストツプバタフライ弁に於いて、前記ケー
シング１の他端部側に設けられた軸受用孔２０に
は球面状膨出部７を形成してなる弁棒４が挿通し
て設けられ、且つ該弁棒４はその球面状膨出部７
を支点とする揺動と回転との両動作が自在となる
べく軸受用孔２０内に介装された軸受部材５に支
持され、しかも前記弁棒４の先端部４ｂ側には、
弁座３と離反した状態の弁体９を弁棒４の回転動
作により回転可能とすべく弁体９の他端部９ｂ側
に装着されたピン１１を嵌入させて前記弁体９と
弁棒４との両者を連結するための長孔１６が突設
されてなると共に、該長孔１６は、弁体９と弁座
３との対面方向と同方向に沿う弁棒４の揺動動作
により弁体９を揺動させて弁座３に着脱可能とす
べく弁棒４の軸長方向と同方向に沿つた長孔とし
て形成されてなることを特徴とするストツプバタ
フライ弁。1 A valve body 9 for opening and closing an opening 2 for fluid circulation provided in the casing 1 is arranged facing a valve seat 3 provided at the periphery of the opening 2, and one end of the valve body 9 In a stop butterfly valve in which the portion 9a side is supported on one end side of the casing 1 so that the valve body 9 can rotate and swing, a bearing hole provided on the other end side of the casing 1 is provided. A valve stem 4 having a spherical bulge 7 formed therein is inserted through the valve 20, and the valve stem 4 has a spherical bulge 7 formed therein.
It is supported by a bearing member 5 inserted in the bearing hole 20 so as to be able to freely swing and rotate with the valve stem 4 as a fulcrum.
In order to make the valve body 9 separated from the valve seat 3 rotatable by the rotational movement of the valve stem 4, a pin 11 attached to the other end 9b of the valve body 9 is inserted to connect the valve body 9 and the valve stem. A long hole 16 is protruded to connect the valve body 9 and the valve seat 3, and the long hole 16 is opened by the swinging movement of the valve stem 4 in the same direction as the direction in which the valve body 9 and the valve seat 3 face each other. A stop butterfly valve characterized in that the valve body 9 is formed as a long hole extending in the same direction as the axial direction of the valve stem 4 so that the valve body 9 can be attached to and detached from the valve seat 3 by swinging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12626581A JPS5828061A (en) | 1981-08-11 | 1981-08-11 | No-slide stop butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12626581A JPS5828061A (en) | 1981-08-11 | 1981-08-11 | No-slide stop butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5828061A JPS5828061A (en) | 1983-02-18 |
| JPH026950B2 true JPH026950B2 (en) | 1990-02-14 |
Family
ID=14930899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12626581A Granted JPS5828061A (en) | 1981-08-11 | 1981-08-11 | No-slide stop butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5828061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424468A (en) * | 1990-05-18 | 1992-01-28 | Rinnai Corp | Bath boiler |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5886959U (en) * | 1981-12-07 | 1983-06-13 | 吉池 勝 | putterfly valve device |
| JPS60118070U (en) * | 1984-01-20 | 1985-08-09 | 大阪機器製造株式会社 | butterfly valve |
| JPH081338Y2 (en) * | 1988-08-05 | 1996-01-17 | 大阪機器製造株式会社 | Butterfly valve |
| DE68917661T2 (en) * | 1988-08-05 | 1994-12-22 | Osaka Kikiseizo K K | Flap valve and actuator for the rotary movement and up and down movement of the flap. |
| JP5490642B2 (en) * | 2010-07-28 | 2014-05-14 | 株式会社パウレック | Disk member reversing mechanism |
| CN106030089B (en) * | 2014-06-30 | 2018-09-11 | 爱三工业株式会社 | Double eccentric valves |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5157377A (en) * | 1974-11-14 | 1976-05-19 | Katsuo Narumi | AKUCHUEETA |
-
1981
- 1981-08-11 JP JP12626581A patent/JPS5828061A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5157377A (en) * | 1974-11-14 | 1976-05-19 | Katsuo Narumi | AKUCHUEETA |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424468A (en) * | 1990-05-18 | 1992-01-28 | Rinnai Corp | Bath boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5828061A (en) | 1983-02-18 |
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