JPS6119243Y2 - - Google Patents
Info
- Publication number
- JPS6119243Y2 JPS6119243Y2 JP4130481U JP4130481U JPS6119243Y2 JP S6119243 Y2 JPS6119243 Y2 JP S6119243Y2 JP 4130481 U JP4130481 U JP 4130481U JP 4130481 U JP4130481 U JP 4130481U JP S6119243 Y2 JPS6119243 Y2 JP S6119243Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- rubber
- periphery
- lining
- metal sheet
- 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
- 239000011162 core material Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 206010040844 Skin exfoliation Diseases 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
【考案の詳細な説明】
本考案は、周縁に金属シートを備えると共に、
弁体主部の両側面に、その側面を被覆するゴムを
ライニングさせた弁体の構造に関する。[Detailed description of the invention] The invention includes a metal sheet on the periphery, and
This invention relates to the structure of a valve body in which both sides of the main part of the valve body are lined with rubber that covers the sides.
上記の弁体構造において、中間開度の弁体の直
下流側に生じる負圧現象や、輸送流体が弁体表面
を流動するときに生じる負圧現象により、前記ラ
イニングゴムの周縁にそれを弁体主部から離間さ
せる力が作用し、前記金属シート及び弁体主部に
対するライニングゴムの結合力が弱いと、前記ラ
イニングゴムがその周縁部から部分的に離反する
と共に、それの増長によつて短期間で剥離してし
まう危険性が大であつた。 In the above valve body structure, due to the negative pressure phenomenon that occurs immediately downstream of the valve body at an intermediate opening degree or the negative pressure phenomenon that occurs when the transport fluid flows on the valve body surface, it is applied to the periphery of the lining rubber. If a force is applied to separate the lining rubber from the main part of the valve body, and the bonding force of the lining rubber to the metal sheet and the main part of the valve body is weak, the lining rubber will partially separate from its peripheral edge, and due to its extension. There was a high risk of peeling off in a short period of time.
本考案は、上述の実情に鑑みて、極めて簡単な
改造によつて、前記ライニングゴムの剥離を防止
できるようにする事を目的とする。そこで、例え
ば実開昭50−82727号公報などにおいて、弁体主
部の外周側面に沿つて凹溝を形成し、この凹溝内
にゴムライニングを施し、凹溝内のゴムを押え板
とボルトとで確実に固定した後、この凹溝内のゴ
ムと接着するようにゴムを弁体主部の側面にライ
ニングさせた技術が提案された。すなわち、この
従来技術では、ゴムとゴムとの接着でその接合を
強固にして前記の剥離を防ごうとしたものであつ
たが、凹溝の形成や凹溝のゴムライニング、更に
は押え板の止め付けなど、製作性に劣るという欠
点があつて、簡単な構造の弁体が望されていた。 In view of the above-mentioned circumstances, it is an object of the present invention to make it possible to prevent the lining rubber from peeling off by extremely simple modification. Therefore, for example, in Japanese Utility Model Application Publication No. 50-82727, a groove is formed along the outer circumferential side of the main part of the valve body, a rubber lining is applied inside the groove, and the rubber in the groove is used to connect the holding plate and bolts. A technique has been proposed in which the main part of the valve body is securely fixed in place with rubber lining on the side surface of the main part of the valve body so as to adhere to the rubber in the groove. In other words, in this prior art, the above-mentioned peeling was tried to be prevented by strengthening the bond by bonding rubber to rubber. However, there was a need for a valve body with a simple structure due to the disadvantages of poor manufacturing efficiency, such as fastening.
本考案は、以上の従来欠点を解消し、構造が簡
単で、しかもライニングゴムの剥離を防止できる
弁体の構造を提供せんとするものである。 The present invention aims to eliminate the above-mentioned conventional drawbacks, provide a valve body structure that is simple in structure, and can prevent the lining rubber from peeling off.
次に、本考案の実施例を図面に基いて詳述す
る。 Next, embodiments of the present invention will be described in detail based on the drawings.
輸送管接続用フランジを備えた弁箱１に、弁体
２を連設した弁棒３を回転自在に軸架すると共
に、閉じ状態において前記弁体２のほぼ全周にわ
たつて接触するシート４を前記弁箱１の内周部に
付設して、バタフライ型式の弁を構成してある。 A valve stem 3 with a valve body 2 connected thereto is rotatably mounted on a valve body 1 equipped with a flange for connecting a transport pipe, and a seat 4 contacts almost the entire circumference of the valve body 2 in the closed state. is attached to the inner periphery of the valve box 1 to constitute a butterfly type valve.
前記弁体２を構成するに、第２図に示すよう
に、弁棒３を連設した円盤状の弁体主部５の周縁
に、その周縁部の両側を抱き込む状態の湾曲形状
のステンレス鋼等の耐食性に富む金属シート６
を、弁棒３を囲繞するシート７，７にわたつて肉
盛りによつて設け、かつ、その金属シート６の内
端面を、それと弁体主部５との間にクサビ状空間
を形成するように傾斜させると共に、そのクサビ
状空間に入り込ませる状態で前記金属シート６，
６と弁棒シート７，７によつて囲まれた前記弁体
主部５の両側面に、前記金属シート６の外表面に
連ねる状態で軟質のゴム８をライニングし、か
つ、そのライニングゴム８の内部に、その周縁に
沿わせる状態で周縁保形用の芯材９を埋め込んで
ある。 As shown in FIG. 2, the valve body 2 is made of a curved stainless steel whose peripheral edge is hugged on both sides of the disc-shaped valve body main part 5 to which the valve stem 3 is connected. Metal sheet with high corrosion resistance such as steel 6
is provided by overlaying over the sheets 7, 7 surrounding the valve stem 3, and the inner end surface of the metal sheet 6 is arranged so as to form a wedge-shaped space between it and the main portion 5 of the valve body. The metal sheets 6,
6 and valve stem seats 7, 7 are lined with soft rubber 8 in a state that is continuous with the outer surface of the metal sheet 6, and the lining rubber 8 A core material 9 for maintaining the shape of the peripheral edge is embedded inside the core material 9 along the peripheral edge.
前記保形用芯材９をライニングゴム８に埋設さ
せるに、第３図に示すように、棒状の生ゴム１０
の中心部に金属製の芯材９を位置させて、芯基材
１１を形成し、この芯基材１１を、第４図に示す
ように、ライニングゴム周縁相当箇所つまり前記
クサビ状空間に湾曲させて位置させ、そして、前
記弁体主部５の側面を被覆する状態でゴム８を前
記生ゴム１０と共に加硫させる事により、第５図
に示すように、ライニングゴム８の周縁に芯材９
を位置させるようにしてある。 To embed the shape-retaining core material 9 in the lining rubber 8, as shown in FIG.
A core base material 11 is formed by positioning a metal core material 9 in the center of the core base material 11. As shown in FIG. By vulcanizing the rubber 8 together with the raw rubber 10 while covering the side surface of the valve body main portion 5, a core material 9 is formed around the periphery of the lining rubber 8, as shown in FIG.
It is arranged so that it is positioned.
尚、前記芯材９を弁体半径方向に複数本を並設
するも良く、また湾曲成型させた硬質樹脂製のも
のに変更する等、各種の材質のものを選択でき、
かつ、その芯材９の埋設手段も各種変形可能であ
る。 In addition, a plurality of core materials 9 may be arranged in parallel in the radial direction of the valve body, or materials made of various materials can be selected, such as changing to a material made of curved hard resin.
Moreover, the means for embedding the core material 9 can also be modified in various ways.
また、前記ライニングゴム８を硬質のものにす
るも良く、更に本考案を、前記金属シート６及び
保形用芯材９を環状にする事のできる偏芯型のバ
タフライ弁やその他各種の弁に装備可能である。 Further, the lining rubber 8 may be made of a hard material, and the present invention can be applied to an eccentric butterfly valve and other various valves in which the metal sheet 6 and the shape-retaining core material 9 can be made into an annular shape. Can be equipped.
以上要するに本考案は、冒記した弁体の構造に
おいて、前記金属シート６の内端面を傾斜させて
この内端面と弁体主部５の側面とで断面クサビ状
の周部空間を形成し、このクサビ状空間に前記ラ
イニングゴムの周縁を入り込ませると共に、ライ
ニングゴム８の内部に、その周縁に沿わせる状態
で保形用の硬質芯材９を埋込んである事を特徴と
するもので、以下の作用効果を得られる。 In summary, the present invention, in the above-described structure of the valve body, inclines the inner end surface of the metal sheet 6 and forms a circumferential space with a wedge-shaped cross section between this inner end surface and the side surface of the valve body main part 5, The periphery of the lining rubber is inserted into this wedge-shaped space, and a shape-retaining hard core material 9 is embedded inside the lining rubber 8 along the periphery. You can obtain the following effects.
すなわち、ライニングゴム８の周縁を硬質芯材
９によつて保形させる事と、この保形部分をクサ
ビ状空間に入り込ませていることとの相乗によつ
て、構造は簡単でありながら、ライニングゴム８
周縁の部分的な剥離と、それの増長によるライニ
ングゴム８全体の剥離を抑制できるようになり、
簡単な改造によつて長期にわたつてライニングゴ
ム８の剥離防止を行なわせられるようになつた。 In other words, the structure is simple, but the lining can be rubber 8
It becomes possible to suppress partial peeling of the peripheral edge and peeling of the entire lining rubber 8 due to the increase of peeling,
By simple modification, it has become possible to prevent the lining rubber 8 from peeling off over a long period of time.
図面は本考案に係る弁体の構造の実施例を示
し、第１図はバタフライ弁の断面図、第２図は弁
体の要部の断面図、第３図は芯基材の破断斜視図
である。第４図及び第５図は、芯基材の取付け状
態、並びに、芯材の埋込み状態を示す弁体要部の
斜視図である。
５……弁体主部、６……金属シート、８……ラ
イニングゴム、９……保形用芯材。
The drawings show an embodiment of the structure of the valve body according to the present invention, and FIG. 1 is a sectional view of the butterfly valve, FIG. 2 is a sectional view of the main part of the valve body, and FIG. 3 is a cutaway perspective view of the core base material. It is. FIGS. 4 and 5 are perspective views of the main parts of the valve body, showing the state in which the core base material is attached and the state in which the core material is embedded. 5... Valve body main part, 6... Metal sheet, 8... Lining rubber, 9... Shape-retaining core material.
Claims (1)
５の両側面に、その側面を被覆するゴム８をライ
ニングさせた弁体の構造であつて、前記金属シー
ト６の内端面を傾斜させてこの内端面と弁体主部
５の側面とで断面クサビ状の周部空間を形成し、
このクサビ状空間に前記ライニングゴムの周縁を
入り込まると共に、ライニングゴム８の内部に、
その周縁に沿わせる状態で保形用の硬質芯材９を
埋込んである事を特徴とする弁体の構造。 The valve body has a structure in which a metal sheet 6 is provided on the periphery, and rubber 8 is lined on both sides of the valve body main portion 5 to cover the side surfaces, and the inner end surface of the metal sheet 6 is inclined. A peripheral space having a wedge-shaped cross section is formed by the inner end surface and the side surface of the valve body main portion 5,
The periphery of the lining rubber is inserted into this wedge-shaped space, and inside the lining rubber 8,
The structure of the valve body is characterized by having a shape-retaining hard core material 9 embedded along its periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4130481U JPS6119243Y2 (en) | 1981-03-20 | 1981-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4130481U JPS6119243Y2 (en) | 1981-03-20 | 1981-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57153856U JPS57153856U (en) | 1982-09-27 |
| JPS6119243Y2 true JPS6119243Y2 (en) | 1986-06-10 |
Family
ID=29838379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4130481U Expired JPS6119243Y2 (en) | 1981-03-20 | 1981-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6119243Y2 (en) |
-
1981
- 1981-03-20 JP JP4130481U patent/JPS6119243Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57153856U (en) | 1982-09-27 |
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