JPS6114389B2 - - Google Patents
Info
- Publication number
- JPS6114389B2 JPS6114389B2 JP5940777A JP5940777A JPS6114389B2 JP S6114389 B2 JPS6114389 B2 JP S6114389B2 JP 5940777 A JP5940777 A JP 5940777A JP 5940777 A JP5940777 A JP 5940777A JP S6114389 B2 JPS6114389 B2 JP S6114389B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- packing
- packing body
- valve body
- annular
- 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
- 238000012856 packing Methods 0.000 claims description 43
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000012779 reinforcing material Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
【発明の詳細な説明】
本発明は、複葉弁に係り、特に弁閉鎖時封止部
下流側に生ずる負圧によりパツキング体が弁体か
ら吸出されたりあるいは変形、破損したりするお
それがない複葉弁に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bi-leaflet valve, and more particularly to a bileaflet valve in which there is no risk that the packing body will be sucked out from the valve body or deformed or damaged due to the negative pressure generated downstream of the sealing part when the valve is closed. Regarding valves.
複葉弁は第１図に示すように内周面に環状の弁
座１を形成した筒状の弁胴２と、この弁胴２の軸
線に垂直な回動軸３を備え且つ、複数枚の板から
成る弁体４と、この弁体４の内の１枚の板５の外
周縁に装着された環状のパツキング体６とを有し
ており、弁閉鎖時このパツキング体６を上記弁座
１に圧接させて流体の流路を封止するものであ
る。 As shown in Fig. 1, a biplane valve has a cylindrical valve body 2 with an annular valve seat 1 formed on its inner peripheral surface, a rotation shaft 3 perpendicular to the axis of this valve body 2, and a plurality of valve bodies. It has a valve body 4 made of a plate, and an annular packing body 6 attached to the outer peripheral edge of one plate 5 of the valve body 4. When the valve is closed, the packing body 6 is attached to the valve seat. 1 to seal the fluid flow path.
ところで複葉弁閉鎖時に、流体の慣性により封
止部下流側に負圧が生じその真空吸引力によりパ
ツキング体６が、弁体４から引きはなされる方向
に力を受け、ときにはパツキング体６が塑性変形
したり破損したりして、弁の機能が停止する場合
がある。かかる事態を回避するため、パツキング
体６を構成しているゴムや合成樹脂の硬度を高く
すると前記弁座１とパツキング体６との密着性が
低下し流体の封止が完全でなくなるという欠点が
あつた。 By the way, when the biplane valve is closed, negative pressure is generated on the downstream side of the sealing part due to the inertia of the fluid, and due to the vacuum suction force, the packing body 6 receives a force in the direction of being pulled away from the valve body 4, and sometimes the packing body 6 is plastically deformed. The valve may stop functioning due to damage or damage. In order to avoid such a situation, if the hardness of the rubber or synthetic resin constituting the packing body 6 is increased, the adhesion between the valve seat 1 and the packing body 6 will be reduced, resulting in an incomplete sealing of the fluid. It was hot.
そこで本発明の目的は、パツキング体の弁座部
への密着性が良く、しかも弁閉止時に発生する真
空吸引力によつて、パツキング体が塑性変形した
り破損したりすることのない複葉弁を提供するこ
とにある。 Therefore, an object of the present invention is to provide a biplane valve in which the packing body has good adhesion to the valve seat, and the packing body is not plastically deformed or damaged by the vacuum suction force generated when the valve is closed. It is about providing.
上記目的は本発明によれば、パツキング体の内
部に、一枚又は複数枚の帆布又はナイロン布等に
よる補強材を埋設することにより達成される。 According to the present invention, the above object is achieved by embedding one or more reinforcing materials such as canvas or nylon cloth inside the packing body.
以下、本発明の一実施例を添付図を参照して説
明する。 Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
第２図に於て、符号５は弁体４を構成する１枚
の板を示しこの板５の外周部にパツキング体６が
装着されている。すなわち、上記板５の外周縁に
は段部が形成されており、この段部に環状のパツ
キング体６が嵌装され、さらに弁体４の板５の段
部形成片７とほぼ同形のパツキング押え８および
複数の取付ボルト９により上記段部形成片７に固
定されている。そしてパツキング体６の内部に
は、このパツキング体６の中心軸線に対して円板
状にかつ、パツキング体６の周縁より離間した内
側に略等間隔に補強材１０を埋設している。 In FIG. 2, reference numeral 5 designates one plate constituting the valve body 4, and a packing body 6 is attached to the outer circumference of this plate 5. That is, a stepped portion is formed on the outer peripheral edge of the plate 5, and an annular packing body 6 is fitted into this stepped portion, and a packing member having approximately the same shape as the stepped portion forming piece 7 of the plate 5 of the valve body 4 is fitted. It is fixed to the step forming piece 7 with a presser foot 8 and a plurality of mounting bolts 9. Reinforcing materials 10 are embedded inside the packing body 6 in a disc shape with respect to the central axis of the packing body 6 and at approximately equal intervals on the inner side away from the periphery of the packing body 6.
上記補強材１０の材料としては帆布やナイロン
布などが適当である。又、補強材１０を全円周に
渡りエンドレス構造にすることも可能である。な
お、パツキング体６の横断面形状と前記段部形成
片７およびパツキング押え８により形成される溝
部の横断面形状とは共に同形の凸字形であり、パ
ツキング体６は上記溝部と結合しているので、パ
ツキング体６の板５への装着はより強固なものと
なつている。また、パツキング体６の外周縁部
は、上記段部形成片７およびパツキング押え８に
より形成される溝部より外方に突出していること
はもちろんである。 Suitable materials for the reinforcing material 10 include canvas and nylon cloth. Further, it is also possible to form the reinforcing material 10 into an endless structure over the entire circumference. Note that the cross-sectional shape of the packing body 6 and the cross-sectional shape of the groove formed by the step forming piece 7 and the packing presser 8 are both the same convex shape, and the packing body 6 is connected to the groove. Therefore, the packing body 6 is more firmly attached to the plate 5. It goes without saying that the outer peripheral edge of the packing body 6 projects outward from the groove formed by the step forming piece 7 and the packing presser 8.
上記のように構成された本考案による複葉弁は
パツキング体６の内部に補強材１０を埋設するこ
とにより、パツキング体６の内部強度が飛躍的に
向上する。特に、補強材１０を全円周に渡りエン
ドレス構造にすれば、より強度が向上する。その
ため、弁座１との密着性を高めるために、パツキ
ング体６の材質を硬度が低い柔軟なものにした場
合でもパツキング体６の補強材１０を埋設された
範囲は、硬度が高い材質のパツキング体と同様に
強度および剛性が大きい。従つて、弁閉止時、封
止部下流側に生ずる真空吸引力がパツキング体６
に作用した時、補強材１０が埋設されている部分
はほとんど変形せずにしつかりと弁体４の板５に
固定され、その代りにその他の部分が、弾性変形
して上記真空吸引力を吸収する。この真空吸引力
が消滅すれば、パツキング体６はもとの形状に復
帰することはもちろんである。また、補強材１０
はパツキング体６の中心軸線に対し円環状に埋設
したので、パツキング押え８の押圧方向に直交す
る方向の拘束をなくすことができ、パツキング押
え８の押圧力によつてパツキング体６を弁座１側
へ均一に膨出させることができる。そのためパツ
キング体６と弁座１との密着圧力が摩耗等により
低下したとしても容易にその密着圧力を調整する
ことができる。 In the biplane valve according to the present invention constructed as described above, the internal strength of the packing body 6 is dramatically improved by embedding the reinforcing material 10 inside the packing body 6. In particular, if the reinforcing material 10 has an endless structure over the entire circumference, the strength will be further improved. Therefore, even if the material of the packing body 6 is made of a flexible material with low hardness in order to improve the adhesion with the valve seat 1, the area where the reinforcing material 10 of the packing body 6 is buried is made of a material with high hardness. Like the body, it has great strength and rigidity. Therefore, when the valve is closed, the vacuum suction force generated on the downstream side of the sealing portion is applied to the packing body 6.
When the reinforcing material 10 is embedded, the part where the reinforcing material 10 is buried is firmly fixed to the plate 5 of the valve body 4 with almost no deformation, and the other parts instead elastically deform and absorb the vacuum suction force. do. Of course, when this vacuum suction force disappears, the packing body 6 returns to its original shape. In addition, reinforcing material 10
is embedded in an annular shape with respect to the central axis of the packing body 6, so that the restraint in the direction perpendicular to the pressing direction of the packing presser 8 can be eliminated, and the packing body 6 is pressed against the valve seat 1 by the pressing force of the packing presser 8. It can be made to bulge out evenly to the sides. Therefore, even if the contact pressure between the packing body 6 and the valve seat 1 decreases due to wear or the like, the contact pressure can be easily adjusted.
以上の説明から明らかなように、真空吸引力は
パツキング体の外周部の弾性変形によつて吸収さ
れるので、パツキング体の塑性変形や破損は生じ
ない。 As is clear from the above explanation, the vacuum suction force is absorbed by the elastic deformation of the outer circumferential portion of the packing body, so that no plastic deformation or breakage of the packing body occurs.
また、パツキング体の材質を硬度の低い柔軟な
ものとすることができるので弁座への密着性が向
上し、高い水密度を得ることができる等の効果を
奏する。 Further, since the material of the packing body can be made of a soft material with low hardness, the adhesion to the valve seat is improved, and a high water density can be obtained.
第１図は、複葉弁の一般的な構造を示す要部断
面図、第２図は、本発明による複葉弁の封止部の
実施例を示す要部断面図。
１……弁座、２……弁胴、３……回転軸、４…
…弁体、６……パツキング体、８……パツキング
押え、９……ボルト、１０……補強材。
FIG. 1 is a sectional view of a main part showing the general structure of a bileaflet valve, and FIG. 2 is a sectional view of a main part showing an embodiment of a sealing part of a bileaflet valve according to the present invention. 1... Valve seat, 2... Valve body, 3... Rotating shaft, 4...
... Valve body, 6 ... Packing body, 8 ... Packing presser, 9 ... Bolt, 10 ... Reinforcement material.
Claims (1)
と、この弁胴内に収納されその中心軸に垂直な回
動軸を備え且つ、複数枚の板から成る弁体と、こ
の弁体の複数枚の内の１枚の板の外周縁に形成さ
れた段部に嵌装される環状のパツキング体と、こ
のパツキング体を弁体の複数枚の内の１枚の板に
取付ボルトで押圧して固定するパツキング押えと
を有するものにおいて、前記パツキング体の内部
にパツキング体の中心軸線に対して円環状の補強
材を１枚以上埋設したことを特徴とする複葉弁。1. A cylindrical valve body with an annular valve seat formed on its inner circumferential surface, a valve body housed within the valve body and equipped with a rotating shaft perpendicular to its central axis, and consisting of a plurality of plates; An annular packing body that is fitted into a step formed on the outer peripheral edge of one of the plurality of plates of the valve body, and this packing body is attached to one of the plurality of plates of the valve body. What is claimed is: 1. A biplane valve having a packing holder that is fixed by pressing with a bolt, characterized in that one or more annular reinforcing members are embedded inside the packing body with respect to the center axis of the packing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5940777A JPS53145126A (en) | 1977-05-24 | 1977-05-24 | Plural leaves valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5940777A JPS53145126A (en) | 1977-05-24 | 1977-05-24 | Plural leaves valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53145126A JPS53145126A (en) | 1978-12-18 |
| JPS6114389B2 true JPS6114389B2 (en) | 1986-04-18 |
Family
ID=13112384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5940777A Granted JPS53145126A (en) | 1977-05-24 | 1977-05-24 | Plural leaves valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53145126A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5599638B2 (en) * | 2010-04-06 | 2014-10-01 | 株式会社オーケーエム | Butterfly ring seat ring and butterfly valve |
-
1977
- 1977-05-24 JP JP5940777A patent/JPS53145126A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53145126A (en) | 1978-12-18 |
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