JPH035725Y2 - - Google Patents
Info
- Publication number
- JPH035725Y2 JPH035725Y2 JP1986040693U JP4069386U JPH035725Y2 JP H035725 Y2 JPH035725 Y2 JP H035725Y2 JP 1986040693 U JP1986040693 U JP 1986040693U JP 4069386 U JP4069386 U JP 4069386U JP H035725 Y2 JPH035725 Y2 JP H035725Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber sheet
- valve
- head
- plate
- valve body
- 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
- 239000012530 fluid Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、管路の開閉を行うバタフライ弁の
弁体に関し、特に２枚の弁板からなる弁体にゴム
シートを挟み込んで接合するようにしたバタフラ
イ弁の弁体に関する。[Detailed explanation of the invention] (Field of industrial application) This invention relates to the valve body of a butterfly valve that opens and closes a pipeline, and in particular, the invention is a valve body consisting of two valve plates that are joined by sandwiching a rubber sheet between them. This invention relates to a valve body for a butterfly valve.
（従来の技術）
従来、円筒状の本体内に円板状の弁体を回動自
在に軸支し、弁体の外周縁と本体内周面との密接
により流路を断続するようにしたバタフライ弁は
公知である。(Prior art) Conventionally, a disc-shaped valve body is rotatably supported in a cylindrical body, and the flow path is interrupted by the close contact between the outer circumferential edge of the valve body and the inner circumferential surface of the body. Butterfly valves are known.
かかるバタフライ弁にあつては、本体内周面か
若しくは弁体外周縁のいずれかにゴム製の環状密
封材を定着して、閉弁時の流体漏れ防止を図つて
いる。 In such butterfly valves, a rubber annular sealing material is fixed to either the inner peripheral surface of the main body or the outer peripheral edge of the valve body to prevent fluid leakage when the valve is closed.
従来公知の弁体に取り付けられるゴムシートの
一つは、第１６図に示すように、内周部の幅を外
周部の幅よりも大とした断面略三角形状のゴムシ
ート１を、その内周面において金属製のリング２
に焼付けて一体化し、弁体３の外周縁に形成され
た切欠溝４内に嵌め込んでシートリテーナ５で挟
持して弁体１に取り付けている。従来公知のゴム
シートの他の一つは、第１７，１８図に示すよう
にゴムシート７を断面三角形若しくは断面円形の
紐状のリング状に形成し、左右対称形の２枚の弁
体８，８′の先端部９，９′に挟み込んで２枚の弁
体８，８′を相互に固着して、ゴムシート７を取
り付けている。 As shown in FIG. 16, one of the conventionally known rubber sheets attached to a valve body is a rubber sheet 1 having a substantially triangular cross section with an inner circumference wider than an outer circumference. Metal ring 2 on the circumference
The valve body 1 is attached to the valve body 1 by being baked into one piece, fitted into a notched groove 4 formed on the outer peripheral edge of the valve body 3, and held by a seat retainer 5. Another conventionally known rubber sheet is a rubber sheet 7 formed into a string-like ring shape with a triangular or circular cross section, as shown in FIGS. 17 and 18, and two symmetrical valve bodies 8. , 8', and the two valve bodies 8, 8' are fixed to each other, and the rubber sheet 7 is attached.
（考案が解決しようとする問題点）
従来の第１６図に示す構造にあつては、ゴムシ
ート１の基部に金属リング２が一体化されシート
リテーナ５で強固に挟持されている為、高流速や
真空流体使用時に、ゴムシート１が弁体３から外
方へ引出されるおそれがない反面、部品点数が多
く高価であると共に、シートリテーナ５を本体に
取り付けるビス６が緩むとゴムシート１が弁体１
から外れたり、或は逆にビス６が錆付くと分解が
不可能となつてしまう欠点があつた。(Problems to be solved by the invention) In the conventional structure shown in FIG. 16, the metal ring 2 is integrated with the base of the rubber sheet 1 and is firmly held by the sheet retainer 5, so that high flow velocity can be achieved. While there is no risk that the rubber sheet 1 will be pulled out from the valve body 3 when vacuum fluid is used, it requires many parts and is expensive, and if the screws 6 that attach the seat retainer 5 to the main body loosen, the rubber sheet 1 Valve body 1
There was a drawback that if the screw 6 came off, or if the screw 6 rusted, it would be impossible to disassemble it.
又、第１７，１８図に示す構造にあつては、弁
体８，８′を板金で作ることが出来るためコスト
低下を図ることが出来る反面、高流速や真空流体
の使用時にゴムシート７が引き出され易く、又ゴ
ムシート７が細い紐状態で柔軟であるため、成形
時のバリ除去がきわめて面倒となり自動化が困難
であつた。 In addition, in the structure shown in FIGS. 17 and 18, the valve bodies 8 and 8' can be made of sheet metal, which can reduce costs, but the rubber sheet 7 can be used at high flow rates or when using vacuum fluid. Since it is easy to pull out and the rubber sheet 7 is flexible in the form of a thin string, removing burrs during molding is extremely troublesome and automation is difficult.
そこで、この考案は部品点数が少なく安価に製
造出来、ビス止めのような方法によることなくゴ
ムシートを弁体に固着出来、しかも高流速や真空
流体で引き出されるおそれがなく、又成形時のバ
リ取りを容易に行うことが出来るようにせんとす
るものである。 Therefore, this idea has a small number of parts and can be manufactured at low cost, the rubber sheet can be fixed to the valve body without using methods such as screws, there is no risk of it being pulled out by high flow velocity or vacuum fluid, and there is no burr during molding. The purpose is to make it easy to remove.
（問題点を解決するための手段）
バタフライ弁の本体内周面に密着する頭部１１
と、該頭部１１から中心に向かつて延びる板状部
１２を有し、板状部１２に間隔を存して複数の貫
通孔１５を円周方向に沿つて形成すると共に、直
径方向対向位置に弁軸孔１３を貫通したゴムシー
ト１０と、
対称的な形状を有し一体的に接合される２枚の
弁板１９，１９′からなり、弁体１９，１９′の外
周部には、接合されるとき前記ゴムシート１０の
頭部１１と板状部１２を受け入れて挟持し得るス
ペース２２，２３となる凹部２０，２１が形成さ
れ、第１のスペース２２は外方へ向かつて開放さ
れゴムシート１０の頭部１１の先端が外方へ突出
するのを許容しており、第２のスペース２３には
内方へ向かつて突出し板状部１２の貫通孔１５内
にピン状に係入する突起２４が形成され、更に直
径方向対向位置には、弁棒を受け入れるスペース
２６となる凹部２５が形成された弁体１８と、
から構成され、弁板１９，１９′にゴムシート１
０を挟み込んで一体に接合するようにしたことを
特徴とする。(Means for solving the problem) Head 11 that closely contacts the inner circumferential surface of the butterfly valve body
It has a plate-shaped part 12 extending from the head 11 toward the center, and a plurality of through holes 15 are formed along the circumferential direction at intervals in the plate-shaped part 12, and diametrically opposed positions are formed in the plate-shaped part 12 at intervals. It consists of a rubber sheet 10 that passes through the valve stem hole 13, and two valve plates 19, 19' having symmetrical shapes and integrally joined, and the outer periphery of the valve body 19, 19' has a When joined, recesses 20 and 21 are formed that serve as spaces 22 and 23 that can receive and hold the head 11 and plate-shaped portion 12 of the rubber sheet 10, and the first space 22 is opened outward. The tip of the head 11 of the rubber sheet 10 is allowed to protrude outward, and the tip of the head 11 of the rubber sheet 10 is allowed to protrude outward, and the end of the head 11 of the rubber sheet 10 is allowed to protrude inwardly into the second space 23 and engage in the through hole 15 of the plate-shaped portion 12 in the shape of a pin. A valve element 18 is formed with a protrusion 24 to accommodate the valve rod, and a recess 25 is formed at a diametrically opposing position to serve as a space 26 for receiving the valve stem.
0 is sandwiched and joined together.
（作用）
２枚の弁板でゴムシートを挟持し接合によりピ
ン状となる弁体の突起をゴムシートの孔に係入し
て、ゴムシートを掴持するようにしてあるので、
ゴムシートが高流速や真空の流体で引き出される
おそれがなくなる。又、ゴムシートは頭部に連続
して板状の環状部を一体に形成してあるので、剛
性が高く成形バリの除去を容易に行うことが出来
る。(Function) Since the rubber sheet is sandwiched between two valve plates and the protrusion of the valve body, which becomes pin-shaped by joining, is inserted into the hole in the rubber sheet to grip and hold the rubber sheet,
There is no risk that the rubber sheet will be pulled out by high flow velocity or vacuum fluid. Further, since the rubber sheet has a plate-shaped annular portion integrally formed continuous with the head, the rubber sheet has high rigidity and molding burrs can be easily removed.
（考案の効果）
この考案によれば、弁体は２枚の板金製のもの
とし、ゴムシートを挟持しているためコストの低
減を計ることが出来ると共に、高流速や真空流体
によつて引き出されるおそれがない為、使用する
流体に制限がなく、長期に亙つて、安定した流体
漏れを達成出来る。更に、成形時のバリ取りを容
易に行うことが出来るため、ゴムシートの製造を
自動化することが容易となる等の効果がある。(Effects of the invention) According to this invention, the valve body is made of two sheet metal sheets and a rubber sheet is sandwiched between them, which reduces costs. Since there is no risk of leakage, there are no restrictions on the fluid that can be used, and stable fluid leakage can be achieved over a long period of time. Furthermore, since it is possible to easily remove burrs during molding, there are effects such as ease of automating the production of rubber sheets.
（実施例）
以下に図面を参照しつつこの考案の好しい実施
例を説明する。図において１０はこの考案に係る
ゴムシートであつて、環状の頭部１１と、該頭部
１１から中心に向つて延びる環状の板状部１２と
からなり、ゴムの加硫により一体に成形される。
ゴムシート１０の中心を通る対称位置に弁棒を挿
通するため弁軸孔１３を貫穿する。板状部１２
は、弁軸孔１３の部分において不連続とする。し
かしながら、第４，５図に示すように、弁軸孔１
３から中心に向つて弁棒の外周を囲繞する大径の
弁軸挿通部１４を形成しても良い。(Embodiment) A preferred embodiment of this invention will be described below with reference to the drawings. In the figure, reference numeral 10 denotes a rubber sheet according to this invention, which is composed of an annular head 11 and an annular plate-shaped part 12 extending from the head 11 toward the center, and is integrally formed by vulcanization of rubber. Ru.
The valve stem hole 13 is penetrated in order to insert the valve stem at a symmetrical position passing through the center of the rubber sheet 10. Plate portion 12
is discontinuous at the valve stem hole 13. However, as shown in FIGS. 4 and 5, the valve stem hole 1
A valve shaft insertion portion 14 having a large diameter may be formed to surround the outer periphery of the valve stem from 3 toward the center.
板状部１２には適宜の間隔をおいて複数の貫通
孔１５が形成される。頭部１１は板状部１２より
も肉厚に形成されると共に、後述する弁体で挟持
したときに、弁体からの抜け出しを阻止するため
に、断面円形若しくは楕円形に形成する。しかし
ながら、これに限られるものではなく、第６図に
示すように断面三角形状としても良い。シール性
を向上させるために、第７図に示すように頭部１
１の外周面に多数の突条１６を形成しても良い。
又、第８図に示すように頭部１１の両側面に凹溝
１７を形成して、弁体に形成した突条を係入し、
ゴムシート１０の抜け出し防止性を向上させても
良いであろう。 A plurality of through holes 15 are formed in the plate portion 12 at appropriate intervals. The head 11 is formed thicker than the plate-like portion 12, and has a circular or elliptical cross section in order to prevent it from slipping out from the valve body when it is held between the valve bodies, which will be described later. However, it is not limited to this, and may have a triangular cross section as shown in FIG. In order to improve the sealing performance, the head 1 is
A large number of protrusions 16 may be formed on the outer peripheral surface of one.
Further, as shown in FIG. 8, grooves 17 are formed on both sides of the head 11, into which the protrusions formed on the valve body are inserted.
The ability to prevent the rubber sheet 10 from coming off may be improved.
又、突起１１に連続する板状部１２は第１〜３
図に示すドーナツツ形状に限られないものであ
り、第９図に示すように、中心まで連続した円板
状に形成しても良いことは勿論である。 Further, the plate-like portions 12 that are continuous with the protrusions 11 are the first to third plate portions.
It is needless to say that it is not limited to the donut shape shown in the figure, and may be formed in a continuous disk shape to the center as shown in FIG. 9.
次に、弁体１８は対称的な形状を有する２枚の
弁板１９，１９′を一体的に接合して形成される。
弁板１９，１９′には対称的な形状において、外
周部にゴムシート１０の頭部１１と板状部１２と
を受け入れる凹部２０，２１が連続して形成され
る。凹部２０，２１は２枚の弁体１９，１９′を
接合したとき、ゴムシート１０の頭部１１と板状
部１２とを受け入れて挟持し得るスペース２２，
２３となる。第１のスペース２２は外方へ向つて
開放し、ゴムシート１０の頭部１１の先端が外方
へ突出する。又、第２のスペース２３には内方へ
向つて突出する突起２４が形成され、該突起２４
は２枚の弁板１９，１９′が接合されたときゴム
シート１０の板状部１２の貫通孔１５にピン状に
係入してゴムシート１０の抜け出しを阻止する。
突起２４は貫通孔１５と整合して複数形成される
と共に、２枚の弁板１９，１９′を接合するとき
スポツト溶接により連結されてピン状となる。第
１１図は弁体１８の弁軸部を通る断面を示し、弁
棒を受け入れる凹部２５が形成され、接合された
とき大径のスペース２６となる。そして一方のス
ペース２６の内端には弁棒の先端の角柱部を受け
入れて弁体１８と弁棒とを結合する角孔２７が形
成される。 Next, the valve body 18 is formed by integrally joining two valve plates 19, 19' having symmetrical shapes.
Concave portions 20 and 21 are continuously formed on the outer periphery of the valve plates 19 and 19' in a symmetrical shape to receive the head portion 11 and the plate-like portion 12 of the rubber sheet 10. The recesses 20 and 21 are spaces 22 that can receive and hold the head 11 and the plate-shaped portion 12 of the rubber sheet 10 when the two valve bodies 19 and 19' are joined together.
It will be 23. The first space 22 opens outward, and the tip of the head 11 of the rubber sheet 10 projects outward. Further, a protrusion 24 protruding inward is formed in the second space 23, and the protrusion 24
When the two valve plates 19, 19' are joined together, they engage in the through hole 15 of the plate-like portion 12 of the rubber sheet 10 like a pin to prevent the rubber sheet 10 from slipping out.
A plurality of protrusions 24 are formed in alignment with the through holes 15, and are connected by spot welding to form a pin shape when the two valve plates 19, 19' are joined. FIG. 11 shows a cross section through the valve stem of the valve body 18, in which a recess 25 for receiving the valve stem is formed, and a large diameter space 26 is formed when the valve stem is joined. A square hole 27 is formed at the inner end of one of the spaces 26 to receive a square column at the tip of the valve stem and connect the valve body 18 and the valve stem.
第１２，１３図はゴムシート１０を２枚の弁板
１９，１９′で挟持しつつ接合して弁体１８とし
た状態を示し、弁体１８の弁軸孔１３に上下から
弁棒２８，２９が挿着される。一方の弁棒２８は
その先端の角柱部３０を弁体１８の角孔２７に係
入する。弁体１８を構成する２枚の弁板１９，１
９′は板金をプレス加工して成形するが、これに
限られずロストワツクスで作つた鋳物や、プラス
チツクの成型物であつても良いことは勿論であ
る。 12 and 13 show a state in which the rubber sheet 10 is sandwiched and joined between two valve plates 19, 19' to form a valve body 18, and the valve stem 28, 29 is inserted. One of the valve rods 28 has a square column portion 30 at its tip inserted into a square hole 27 of the valve body 18 . Two valve plates 19, 1 forming the valve body 18
9' is formed by pressing a sheet metal, but is not limited to this, and of course may be a cast product made of lost wax or a molded product of plastic.
第１図はこの考案に係るゴムシートの斜視図、
第２図は同一部を断面した斜視図、第３図は同正
面図、第４図はゴムシートの更に他の変形を示す
斜視図、第５図は同一部を断面した斜視図、第６
〜８図は頭部の一変形例を示す断面図、第９図は
ゴムシートの他の変形を示す断面図、第１０，１
１図は弁体の断面図、第１２図は弁体とゴムシー
トとを組み立てた状態の正面図、第１３図は同一
部を断面した斜視図、第１４，１５図は同縦断面
図、第１６〜１８図は従来のゴムシートと弁体と
を示す一部の拡大断面図である。
１０……ゴムシート、１１……頭部、１２……
板状部、１３……弁軸孔、１５……貫通孔。
Figure 1 is a perspective view of a rubber sheet according to this invention.
FIG. 2 is a perspective view of the same section, FIG. 3 is a front view of the same, FIG. 4 is a perspective view of another modification of the rubber sheet, FIG. 5 is a perspective view of the same section, and FIG. 6 is a perspective view of the same section.
8 is a sectional view showing one modification of the head, FIG. 9 is a sectional view showing another modification of the rubber sheet, and 10th and 1st
Fig. 1 is a sectional view of the valve body, Fig. 12 is a front view of the valve body and rubber sheet assembled, Fig. 13 is a perspective view of the same part in section, Figs. 14 and 15 are longitudinal sectional views of the same, 16 to 18 are partially enlarged sectional views showing a conventional rubber sheet and a valve body. 10...Rubber sheet, 11...Head, 12...
Plate-shaped portion, 13... Valve shaft hole, 15... Through hole.
Claims (1)
と、該頭部１１から中心に向かつて延びる板状部
１２を有し、板状部１２に間隔を存して複数の貫
通孔１５を円周方向に沿つて形成すると共に、直
径方向対向位置に弁軸孔１３を貫通したゴムシー
ト１０と、 対称的な形状を有し一体的に接合される２枚の
弁板１９，１９′からなり、弁体１９，１９′の外
周部には、接合されるとき前記ゴムシート１０の
頭部１１と板状部１２を受け入れて挟持し得るス
ペース２２，２３となる凹部２０，２１が形成さ
れ、第１のスペース２２は外方へ向かつて開放さ
れゴムシート１０の頭部１１の先端が外方へ突出
するのを許容しており、第２のスペース２３には
内方へ向かつて突出し板状部１２の貫通孔１５内
にピン状に係入する突起２４が形成され、更に直
径方向対向位置には、弁棒を受け入れるスペース
２６となる凹部２５が形成された弁体１８と、 から構成され、弁板１９，１９′にゴムシート１
０を挟み込んで一体に接合するようにしたことを
特徴とするバタフライ弁の弁体。[Claims for Utility Model Registration] Head 11 that is in close contact with the inner circumferential surface of the butterfly valve main body
It has a plate-shaped part 12 extending from the head 11 toward the center, and a plurality of through holes 15 are formed along the circumferential direction at intervals in the plate-shaped part 12, and diametrically opposed positions are formed in the plate-shaped part 12 at intervals. It consists of a rubber sheet 10 that passes through the valve stem hole 13, and two valve plates 19, 19' having symmetrical shapes and integrally joined, and the outer periphery of the valve body 19, 19' has a When joined, recesses 20 and 21 are formed that serve as spaces 22 and 23 that can receive and hold the head 11 and plate-shaped portion 12 of the rubber sheet 10, and the first space 22 is opened outward. The tip of the head 11 of the rubber sheet 10 is allowed to protrude outward, and the tip of the head 11 of the rubber sheet 10 is allowed to protrude outward, and the tip of the head 11 of the rubber sheet 10 is allowed to protrude inwardly into the second space 23 and engages in the through hole 15 of the plate-shaped portion 12 in the shape of a pin. A valve body 18 is formed with a protrusion 24 to accommodate the valve stem, and a recess 25 is formed at a diametrically opposed position to serve as a space 26 for receiving a valve stem.
A valve body for a butterfly valve characterized by being integrally joined by sandwiching 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986040693U JPH035725Y2 (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986040693U JPH035725Y2 (en) | 1986-03-20 | 1986-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62153464U JPS62153464U (en) | 1987-09-29 |
| JPH035725Y2 true JPH035725Y2 (en) | 1991-02-14 |
Family
ID=30855001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986040693U Expired JPH035725Y2 (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035725Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5010644B2 (en) * | 2009-07-07 | 2012-08-29 | 株式会社栗本鐵工所 | Butterfly valve |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012763B2 (en) * | 1977-04-20 | 1985-04-03 | 日立マクセル株式会社 | Manufacturing method of ferromagnetic powder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012763U (en) * | 1983-07-05 | 1985-01-28 | 株式曾社 栗本鉄工所 | butterfly valve |
-
1986
- 1986-03-20 JP JP1986040693U patent/JPH035725Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012763B2 (en) * | 1977-04-20 | 1985-04-03 | 日立マクセル株式会社 | Manufacturing method of ferromagnetic powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62153464U (en) | 1987-09-29 |
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