JPH0340263B2 - - Google Patents
Info
- Publication number
- JPH0340263B2 JPH0340263B2 JP62092166A JP9216687A JPH0340263B2 JP H0340263 B2 JPH0340263 B2 JP H0340263B2 JP 62092166 A JP62092166 A JP 62092166A JP 9216687 A JP9216687 A JP 9216687A JP H0340263 B2 JPH0340263 B2 JP H0340263B2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- contact
- bending
- box
- 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
- 238000005452 bending Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
この発明はバタフライバルブに関し、より詳し
くは弁体の構造に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Application> The present invention relates to a butterfly valve, and more particularly to the structure of a valve body.
＜従来技術および問題点＞
従来よりバタフライバルブは液体、気体、粉粒
体等各種の流体用に広く用いられているが、特に
メタルタツチ方式のものにあつては、デイスク状
弁体およびこれが接する弁箱ともに一定形状に仕
上げられて、圧接作用にて弁閉塞を果すものゆ
え、弁体外周と、弁箱の当接個所については非常
に高い加工精度が要求されるもので、製造上手数
であつた。また当接部分の精度を緩和すべく弁体
および弁箱の少なくとも当接面にゴム質体を加味
する構造のものもあるが、メタルタツチ方式のも
のに比べはるかに耐用年数の点で劣る欠点があつ
た。<Prior art and problems> Butterfly valves have traditionally been widely used for various fluids such as liquids, gases, and powder and granular materials.In particular, in the case of metal touch type butterfly valves, the disc-shaped valve body and the valve in contact with it are Since both the box and the box are finished in a certain shape and the valve is closed by pressure contact, extremely high processing precision is required for the outer periphery of the valve body and the contact area between the valve body and the manufacturing efficiency. Ta. In addition, there is a structure in which a rubber body is added to at least the contact surface of the valve body and valve body to reduce the accuracy of the contact part, but this has the disadvantage that it has a much inferior service life compared to the metal touch method. It was hot.
更に板金製弁板であつて、閉塞時に発生する上
流側の高い圧力を緩和させる為、弁体周縁近傍に
凹条を形成したものが実開昭55−112156号公報で
開示されているが、このものは上記作用によつて
弁の円滑な閉塞を行なうものであつて、凹条部分
の厚さは弁体のうち他部分の厚さより薄い構造と
なつているから、閉塞時凹条部分が反復屈曲によ
り折損するおそれがある。 Furthermore, Japanese Utility Model Application No. 55-112156 discloses a sheet metal valve plate having grooves formed near the periphery of the valve body in order to relieve the high pressure on the upstream side that occurs when the valve is closed. This device closes the valve smoothly through the above action, and since the thickness of the grooved portion is thinner than the thickness of other parts of the valve body, the grooved portion closes when closed. There is a risk of breakage due to repeated bending.
＜発明の目的＞
そこで、この発明において、弁箱内面に当接す
る弁体外周の加工精度を従来品程必要とせず、弁
体の開閉が円滑になされている外かつ長期にわた
り開閉反復使用しても弁体が折損することはない
板状体弁板を提供するものである。<Purpose of the invention> Therefore, in this invention, the processing accuracy of the outer periphery of the valve body that contacts the inner surface of the valve body is not required as much as conventional products, and the valve body can be opened and closed smoothly and can be repeatedly opened and closed over a long period of time. To provide a plate-shaped valve plate in which the valve body does not break.
＜問題点を解決するための手段＞
上記発明目的を達成するため、この発明のバタ
フライバルブの構成については、デイスク状弁板
の外周縁寄りに、断面波形の凹凸をリング状に形
成した屈撓部を備え、この屈撓部の屈撓作用によ
つて、弁箱内周の当接部への弁体外周部の当接及
び離間を弾性自在に行なえるようにしたことを特
徴としている。<Means for Solving the Problems> In order to achieve the above-mentioned object of the invention, the butterfly valve of the present invention has a flexible structure in which unevenness with a corrugated cross section is formed in a ring shape near the outer periphery of the disc-shaped valve plate. The outer periphery of the valve body can be elastically brought into contact with and separated from the contact portion on the inner periphery of the valve body by the bending action of the bending portion.
＜作用＞
弁体が回動して外周部が弁箱の当接部と当接す
るとき、弁体外周部の回動軌跡は弁箱当接部の内
径よりも大きいが、断面波形の凹凸をリング状に
複数条形成した屈撓部の屈撓作用によつて収縮す
るから弁箱の当接部に進入し易く、当接位置では
同じく伸張して圧接することになり弁の閉塞性能
が高めるられることになる。<Operation> When the valve body rotates and its outer circumference comes into contact with the abutting part of the valve box, the rotation locus of the outer circumference of the valve body is larger than the inner diameter of the abutting part of the valve body, but it does not change the unevenness of the cross-sectional waveform. It contracts due to the bending action of the bending part formed in multiple ring shapes, so it easily enters the abutting part of the valve box, and at the abutting position, it also expands and presses against it, improving the valve's closing performance. It will be done.
＜実施例＞
次いで、この発明の実施例について図を参照し
ながら以下に説明する。<Example> Next, an example of the present invention will be described below with reference to the drawings.
図において、１０は弁箱、１１は弁箱１０の当
接部、２０はデイスク状の弁体でステンレス鋼等
剛性の高い金属材からなるものが好ましい。弁体
２０は弁軸３０がｘおよびｙの距離を偏心させた
二重偏心による回転作用をなすよう設置する場合
（第２図）と、偏心させず弁軸３０が弁体２０の
中心にある場合（第３図）とがあり、上下で他部
分と異なる当接構造を採用する必要があり、また
弁箱１０の当接部１１となる週面も左右に分離さ
れる後者よりは、当接部１１となる周面が一連に
なる前者による実施がより好ましい。 In the figure, 10 is a valve box, 11 is a contact portion of the valve box 10, and 20 is a disc-shaped valve body, which is preferably made of a highly rigid metal material such as stainless steel. The valve body 20 can be installed so that the valve stem 30 is eccentric by a distance of x and y and rotates due to double eccentricity (Fig. 2), and when the valve stem 30 is installed at the center of the valve body 20 without eccentricity. (Fig. 3), it is necessary to adopt a different abutment structure for the upper and lower parts from the other parts, and the surface that becomes the abutment part 11 of the valve body 10 is also separated into left and right parts. The former method, in which the peripheral surface forming the contact portion 11 is continuous, is more preferable.
特にこの発明では、デイスク状の弁体２０の外
周縁寄りに、弁箱１０の当接部１１に当接する外
周部２１が当接部１１と当接するとき収縮するよ
うにリング状の断面波形状の屈撓部２２を形成し
ておき、弁箱１０の当接部１１への進入を容易に
しかつ進入後は逆に伸張作用によつて密に圧接で
きるように弾性自在に形成している。 In particular, in this invention, the disk-shaped valve body 20 has a ring-shaped cross-sectional wave shape so that the outer circumferential part 21 that contacts the abutting part 11 of the valve body 10 contracts when it comes into contact with the abutting part 11. A bending portion 22 is formed so that the valve body 10 can easily enter the abutment portion 11, and after the valve body 10 enters the contact portion 11, it is elastically formed so that it can be tightly pressed by the stretching action.
即ち、弁箱１０の当接部１１内径よりも弁体２
０の外周部２１の回動軌跡直径をやや大きくする
ことが望ましく、リング状波形は複数条設けてい
もよい。 That is, the inner diameter of the abutting portion 11 of the valve body 10 is
It is desirable that the diameter of the rotation locus of the outer circumferential portion 21 of 0 is slightly larger, and a plurality of ring-shaped waveforms may be provided.
なお、実施上、弁体２０および弁箱１０ともに
ステンレス等金属製でメタルタツチ方式のものの
ほか、弁体２０を金属に近い剛性を有する合成樹
脂材にて形成したり、弁箱１０のうち当接部１１
を同様の合成樹脂材で部分的に形成したりしてセ
ミメタル的なタツチ方式になる構造にして実施す
ることも可能である。さらに弁体２０の屈撓部２
２形状についても図示する形状に限定されず種々
実施できる。 In addition, in practice, both the valve body 20 and the valve box 10 may be made of metal such as stainless steel, and may be of the metal touch type. Part 11
It is also possible to partially form the same synthetic resin material to create a semi-metal touch type structure. Furthermore, the bending portion 2 of the valve body 20
The two shapes are not limited to the shapes shown in the drawings, and can be implemented in various ways.
なお、弁軸３０の駆動の仕方については、ロツ
クレバー式、ギヤ式、シリンダ式および電動式等
既知の連結駆動方式を採用できる。 As for the method of driving the valve shaft 30, known coupling drive methods such as a lock lever type, gear type, cylinder type, and electric type can be adopted.
上記のごときこの発明によるバタフライバルブ
では、弁体２０を閉じるべく回動させると、この
弁体２０は外周部２１が伸縮可能な屈撓部２２を
備えているから、弁箱１０の当接部１１との当接
時進入が容易で密に圧接できることになるもので
ある。 In the butterfly valve according to the present invention as described above, when the valve body 20 is rotated to close, the outer circumferential portion 21 of the valve body 20 is provided with the flexible portion 22 that can be expanded and contracted. 11, it is easy to enter and press tightly.
従つて、弁体２０によるバルブ閉塞性能が高め
られる。 Therefore, the valve closing performance of the valve body 20 is improved.
＜発明の効果＞
この発明によると、上述の如く断面波形の凹凸
をリング状にした屈撓部による弾性にて弁箱当接
部に対して弁体の外周部は大きな回転力を要せず
に進入しかつ密に圧接するから流体閉塞が確実に
なり、弁箱の当接部と弁体の外周部についての高
い加工精度を必要とせず、繰返し使用しても伸縮
する屈撓部は、前記の凹条を形成したものの如く
折損のおそれもなく良好な圧接状態を長きにわた
つて維持できる点でもすぐれたバタフライバルブ
を提供できる。<Effects of the Invention> According to the present invention, as described above, the outer peripheral portion of the valve body does not require a large rotational force with respect to the valve box abutting portion due to the elasticity of the bending portion in which the unevenness of the cross-sectional waveform is formed into a ring shape. The valve body enters the valve body and presses tightly, ensuring fluid occlusion, and does not require high machining precision for the abutting part of the valve body and the outer circumference of the valve body.The flexible part expands and contracts even after repeated use. It is possible to provide a butterfly valve that is superior in that it can maintain a good pressure contact state for a long time without fear of breakage, unlike the above-described grooved valve.
第１図は概要正面図、第２図は−線横断平
面図、第３図は変更例の横断平面図である。
１０……弁箱、１１……当接部、２０……弁
体、２１……弁体の外周部、２２……屈撓部、３
０……弁軸。
FIG. 1 is a schematic front view, FIG. 2 is a cross-sectional plan view along the - line, and FIG. 3 is a cross-sectional plan view of a modified example. DESCRIPTION OF SYMBOLS 10...Valve box, 11...Abutting part, 20...Valve body, 21...Outer peripheral part of the valve body, 22...Bending part, 3
0...Valve stem.
Claims (1)
凹凸をリング状に形成した屈撓部を備え、この屈
撓部の屈撓作用によつて、弁箱内周の当接部への
弁体外周部の当接及び離間を弾性自在に行なえる
ようにしたことを特徴とするバタフライバルブ。1. A bending part in which unevenness with a corrugated cross section is formed in a ring shape is provided near the outer periphery of the disc-shaped valve plate, and the bending action of this bending part causes the valve to contact the contact part on the inner periphery of the valve box. A butterfly valve characterized by being able to elastically bring the outer periphery of the body into contact with and away from the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9216687A JPS63259274A (en) | 1987-04-15 | 1987-04-15 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9216687A JPS63259274A (en) | 1987-04-15 | 1987-04-15 | Butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63259274A JPS63259274A (en) | 1988-10-26 |
| JPH0340263B2 true JPH0340263B2 (en) | 1991-06-18 |
Family
ID=14046845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9216687A Granted JPS63259274A (en) | 1987-04-15 | 1987-04-15 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63259274A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0564576U (en) * | 1992-02-07 | 1993-08-27 | 株式会社巴技術研究所 | Butterfly valve disc |
| DE10136936A1 (en) * | 2001-07-28 | 2003-02-06 | Mann & Hummel Filter | Closure element, in particular for a suction channel of an internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55112156U (en) * | 1979-02-02 | 1980-08-07 |
-
1987
- 1987-04-15 JP JP9216687A patent/JPS63259274A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63259274A (en) | 1988-10-26 |
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