JPS5932763Y2 - ball pulp - Google Patents
ball pulpInfo
- Publication number
- JPS5932763Y2 JPS5932763Y2 JP1977152026U JP15202677U JPS5932763Y2 JP S5932763 Y2 JPS5932763 Y2 JP S5932763Y2 JP 1977152026 U JP1977152026 U JP 1977152026U JP 15202677 U JP15202677 U JP 15202677U JP S5932763 Y2 JPS5932763 Y2 JP S5932763Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- seat
- annular
- auxiliary
- main
- 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
Landscapes
- Taps Or Cocks (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は、ボールバルブの改良に関する。[Detailed explanation of the idea] Industrial applications The present invention relates to improvements in ball valves.
ボールバルブは、弁箱の内部に横方向に貫通する流体通
路を有するボール状弁体を備え、このボール状弁体の対
称位置にシートリングが設けられ、弁箱には前記のボー
ル状弁体に貫通された流体通路と同一径の管が装置され
、弁箱の上方より前記ボール状弁体を操作して９０回動
せしめることによってバルブを開閉するようにされ、こ
のバルブ開閉位置において流体が直線状に流れるように
されている。A ball valve includes a ball-shaped valve body having a fluid passage passing through the valve body in a lateral direction, and a seat ring is provided at a symmetrical position of the ball-shaped valve body. A pipe having the same diameter as the fluid passage passed through the valve body is installed, and the valve is opened and closed by operating the ball-shaped valve body from above the valve box and rotating it 90 times, and in this valve opening and closing position, the fluid is It is made to flow in a straight line.
従来技術
一般に配管用に設けられるボールバルブにおいては、流
体中の異物等によってシートの弁体衝当面に傷ができ、
このため流体が漏洩することがあり、このような漏洩が
あった場合、これを防止するために例えば実開昭５１−
１２０５３１号公報に示されるように、弁箱内部に介装
したボールにシートリングを接当して設け、更に前記シ
ートリングに併設して加圧装置を備えた弾性体リングを
設けたものがある。BACKGROUND TECHNOLOGY Generally, in ball valves installed for piping, foreign objects in the fluid can cause scratches on the valve body contacting surface of the seat.
For this reason, the fluid may leak, and if such a leak occurs, in order to prevent this, for example,
As shown in Japanese Patent No. 120531, there is a valve in which a seat ring is provided in contact with a ball interposed inside the valve box, and an elastic ring equipped with a pressure device is attached to the seat ring. .
そして、前記装置はシートリング又はボールの表面が流
体中の異物等によって傷が生じてもこれに併設された加
圧装置を備えた弾性体リングによって容易に閉止できる
もので有効な手段であるが、前記の弾性体リングは環状
体の中心に向って撓み変形するもので抵抗が大きくリン
グ先端とボールとの衝当は多少不均斉なものになるので
ある。The device described above is an effective means because even if the surface of the seat ring or ball is damaged by foreign matter in the fluid, it can be easily closed by an elastic ring equipped with a pressure device attached to it. The above-mentioned elastic ring flexes and deforms toward the center of the annular body, so the resistance is large and the impact between the tip of the ring and the ball becomes somewhat asymmetrical.
考案が解決しようとする問題点
本考案は、前記した従来装置を改良したもので、主シー
トと弁体衝当面に流体中の異物等によって傷等ができた
りして流体の洩れが発生した場合、洩れの程度に応じて
主シートのボール状弁体面に対する衝当圧を高めて洩れ
を最小限に止め、この主シートの衝当のみでは間に合わ
ない場合には、主シートと隣接する補助シートの衝当圧
を高めて完全に閉止することを目的とするものであり、
主シートと補助シートとを相関連させて作動せしめると
ともに主シート並びに補助シートのバルブボディに対す
る嵌装を容易にするものである。Problems to be Solved by the Invention The present invention is an improvement on the conventional device described above, and can be used in cases where fluid leakage occurs due to damage caused by foreign matter in the fluid between the main seat and the valve body abutment surface. Depending on the degree of leakage, the contact pressure of the main seat against the ball-shaped valve body surface is increased to minimize leakage, and if the main seat's contact alone is not enough, the main seat and the adjacent auxiliary seat are The purpose is to increase the impact pressure and completely close the door.
The main seat and the auxiliary seat are operated in relation to each other, and the main seat and the auxiliary seat are easily fitted into the valve body.
問題点を解決する手段
本考案は、ボール状弁体の周面上を取り捲いてバルブボ
ディ内に環状の凹所を形成し、該凹所内に外周に凹溝を
形成した主シートを嵌装し、前記主シート外側の前半部
に隣接して弾性材製の環状の補助シートを設け、該環状
補助シートは、その外周面の前部がバルブボディに、ま
た内周面の後部が主シートにそれぞれ係合して前記した
バルブボディの凹所の内周面に内接するように嵌装せし
められ、前記補助シートの前面上半部を覆うように環状
の押え板をバルブボディに固設し、前記主シートの後半
部外周面と主シートに係合隣接される前記補助シートの
背面との両面に臨んだ室を圧力流体が流入する保圧流体
室に形成したものである。Means for Solving the Problems The present invention involves forming an annular recess in the valve body by wrapping around the circumferential surface of a ball-shaped valve body, and fitting a main seat having a groove formed on the outer periphery into the recess. An annular auxiliary seat made of an elastic material is provided adjacent to the outer front half of the main seat, and the front part of the outer peripheral surface of the annular auxiliary seat is connected to the valve body, and the rear part of the inner peripheral surface is connected to the main seat. An annular presser plate is fixed to the valve body so as to be engaged with each other and inscribed in the inner peripheral surface of the recess of the valve body, and to cover the upper front half of the auxiliary seat. A chamber facing both sides of the outer circumferential surface of the rear half of the main seat and the back surface of the auxiliary seat which is engaged with and adjacent to the main seat is formed as a pressure-holding fluid chamber into which the pressure fluid flows.
作用
ボールバルブの主シートの外側に環状の補助シートを係
合して隣設する如（に設げ、主シートの弁体衝当面に傷
ができたり等して突然流体の漏洩が発生するという緊急
事態に当り、洩れの程度に応じて、前記主シートの後半
部外周面と主シートに係合隣接する前記補助シートの背
面との両面に臨んだ室に圧力流体を流入せしめて、主シ
ートのボール状弁体に対する衝当圧を高めて洩れを最小
限に止め、あるいは同時に前記の圧力流体によって補助
シートをも押圧するが、補助シートの前面上半部を覆う
ように環状の押え板がバルブボディに固設されているの
で、前記した圧力流体によって押圧された補助シートは
押え板により、下方に誘導されボール状弁体に衝当して
前記主シートと相関連して漏洩を防止するものである。If an annular auxiliary seat is installed adjacent to the outside of the main seat of the ball valve, it may cause sudden fluid leakage due to scratches on the surface of the main seat that abuts the valve body. In an emergency situation, depending on the degree of leakage, pressurized fluid is caused to flow into a chamber facing both sides of the outer peripheral surface of the rear half of the main seat and the back surface of the auxiliary seat that engages and adjoins the main seat. The impact pressure against the ball-shaped valve body is increased to minimize leakage, or at the same time the auxiliary seat is also pressed by the pressure fluid. Since the auxiliary seat is fixed to the valve body, the auxiliary seat pressed by the pressure fluid is guided downward by the holding plate and hits the ball-shaped valve body to prevent leakage in conjunction with the main seat. It is something.
実施例
本考案の一実施例を図面について説明すると、１はバル
ブの弁体のボールで、周知のように横方向に貫通する流
体通路が設けられており、バルブボディ２の上方から操
作することによって９０回動してバルブを開閉するよう
になされている。Embodiment One embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a ball of a valve body of a valve. As is well known, a fluid passage passing through the valve body 2 is provided in the lateral direction, and the ball can be operated from above the valve body 2. The valve rotates 90 times to open and close the valve.
３は四弗化エチレン製の主シートで該主シートの外周に
係合用凹溝９を形成し、また前面上側を曲面としである
。Reference numeral 3 denotes a main sheet made of tetrafluoroethylene, which has an engaging groove 9 formed on its outer periphery, and has a curved upper front surface.
４はブタジェンとアクリロニトリルの共重合体から塑成
された環状の補助シートで、該補助シート４は、その外
周面の前部に先端が円形状とされた突条６を外方に向け
て突設するとともに内周面の後部にも同様に先端が円形
状とされた突条７を突設し、更に、弁体への衝当面１７
の中央に断面三角形状の突条１３を突設して設けである
。Reference numeral 4 denotes an annular auxiliary sheet made of a copolymer of butadiene and acrylonitrile, and the auxiliary sheet 4 has a protrusion 6 with a circular tip protruding outward on the front part of its outer peripheral surface. At the same time, a protrusion 7 with a circular tip is similarly protruded from the rear of the inner circumferential surface, and a contact surface 17 against the valve body is provided.
A protrusion 13 having a triangular cross section is provided protruding from the center.
１５は弁体のボール１の周面を取り捲いたバルブボディ
２内に形成された環状凹所であり、この環状凹所１５の
内周面に凹状溝８を穿設する。Reference numeral 15 denotes an annular recess formed in the valve body 2 surrounding the circumferential surface of the ball 1 of the valve body, and a concave groove 8 is bored in the inner circumferential surface of the annular recess 15.
５は前記補助シート４の前面側に位置して設けた環状の
押え板で、紋押え板５はその外周近傍でボルト１４によ
りバルブボディ２に固設されるとともにその内周端側は
弁体の表面近（まで延びて表面は前記補助シート４の前
面１２に接当するように構成される。Reference numeral 5 denotes an annular holding plate located on the front side of the auxiliary seat 4. The holding plate 5 is fixed to the valve body 2 by bolts 14 near its outer periphery, and its inner periphery end is attached to the valve body. , and the surface is configured to be in contact with the front surface 12 of the auxiliary sheet 4.
バルブボディ２内に形成された環状凹所１５に主シート
３を設定した後、補助シート４の外周面に突設された突
条６をバルブボディ２内に形成された環状凹所１５の内
周面に穿設した凹状溝８に嵌入させるとともに、補助シ
ート４の内周面の後部に突設した突条７を主シートの外
周に形成した係合用凹溝９に嵌入して仮止めし、次いで
、補助シート４の前面上半部を覆うように環状押え板５
をバルブボディ２に固定することによって主シート３に
補助シート４を係合して前記環状凹所１５に嵌装せしめ
られる。After setting the main seat 3 in the annular recess 15 formed in the valve body 2, the protrusion 6 protruding from the outer peripheral surface of the auxiliary seat 4 is inserted into the annular recess 15 formed in the valve body 2. At the same time, the auxiliary sheet 4 is fitted into a concave groove 8 formed on its circumferential surface, and a protrusion 7 protruding from the rear of the inner circumferential surface of the auxiliary sheet 4 is fitted into an engaging groove 9 formed on the outer circumference of the main sheet for temporary fixation. Then, an annular presser plate 5 is attached so as to cover the upper front half of the auxiliary sheet 4.
By fixing the main seat 3 to the valve body 2, the auxiliary seat 4 is engaged with the main seat 3 and fitted into the annular recess 15.
１０は前記環状凹所１５に嵌装された主シート３の外周
とバルブボディ２との間に形成される環状の保圧流体室
であって、該保圧流体室１０の前面側は補助シート４の
背面１１に面し、底面側は主シート３の外周面に面して
いる。10 is an annular pressure-retaining fluid chamber formed between the outer periphery of the main seat 3 fitted in the annular recess 15 and the valve body 2, and the front side of the pressure-retaining fluid chamber 10 is an auxiliary seat. 4, and the bottom side faces the outer peripheral surface of the main sheet 3.
したがって、前記環状の保圧流体室１０にグリース等の
流体を注入すると、保圧流体室１０の底面側は主シート
３の外周面に面しているので、注入されたグリースによ
って主シート３は弁体１面に対する衝当性を高め、更に
グリース圧を上昇せしめると、弁体１の表面より僅かな
間隙を有して嵌装されている補助７−ト４は（第１図参
照）背面より押圧されて弁体１と対面している補助シー
ト４の下半部１６は、補助シート４の前面側は押え板５
によって押えられており、更に、主シート３の前面上側
が曲面とされているので、前記の押え板５と主シート３
の前記曲面とに両側より誘導されて弁体１面に向ってせ
り出す状態になり、補助シート４の弁体への衝当面１７
の中央部に設けられた断面三角形状の突条１３の尖端は
弁体１面に圧接され気密側基作用をする（第２図参照）
。Therefore, when a fluid such as grease is injected into the annular pressure-holding fluid chamber 10, since the bottom side of the pressure-holding fluid chamber 10 faces the outer peripheral surface of the main seat 3, the main sheet 3 is heated by the injected grease. When the impact against the surface of the valve body 1 is increased and the grease pressure is further increased, the auxiliary 7-toe 4, which is fitted with a slight gap from the surface of the valve body 1 (see Fig. The lower half 16 of the auxiliary seat 4 facing the valve body 1 is pressed by the pressure plate 5 on the front side of the auxiliary seat 4.
Furthermore, since the upper front side of the main sheet 3 is curved, the above-mentioned holding plate 5 and the main sheet 3
It is guided from both sides by the curved surfaces of
The tip of the protrusion 13, which has a triangular cross section and is provided in the center of the valve body, is pressed against the surface of the valve body and acts as an airtight side base (see Fig. 2).
.
考案の効果
本考案によると、主シート３と補助シート４とは互いに
係合して連続状態のま呈で容易に装置することができ、
その固定も取外しも環状の押え板５の着脱により簡単に
でき、使用に当っては作用流体が主シートの外周面と補
助シートの背面との両面に作用して事故の犬／ト何れに
も緊急に応え得るようにしたものであり、補助シートの
弁体に対する圧着もスムーズに作動が期待できる等の実
用的な効果がある。Effects of the invention According to the invention, the main sheet 3 and the auxiliary sheet 4 can be easily assembled in a continuous state by engaging each other,
It can be easily fixed and removed by attaching and detaching the annular holding plate 5, and during use, the working fluid acts on both the outer circumferential surface of the main seat and the back surface of the auxiliary seat, preventing any accidents. It is designed to be able to respond to emergencies, and has practical effects such as smooth press-fitting of the auxiliary seat to the valve body.
図面は本考案のボールバルブの要部を示すもので、第１
図（半補助シートが作用しないときの縦断面図、第２図
は補助シートが作用し弁体に圧着したときの縦断面図、
第３図はバルブボディのシート装填個所とシートを固定
する環状押え板の縦断面図である。
１：弁体、２：バルブボディ、３：主シート、４：補助
シート、５：環状押え板、１０：保圧流体室、１５：シ
ート装填用凹所。The drawing shows the main parts of the ball valve of the present invention.
Figure (Longitudinal cross-sectional view when the semi-auxiliary seat does not act, Figure 2 is a vertical cross-sectional view when the auxiliary sheet acts and presses against the valve body,
FIG. 3 is a longitudinal sectional view of the seat loading portion of the valve body and the annular holding plate that fixes the seat. 1: Valve body, 2: Valve body, 3: Main seat, 4: Auxiliary seat, 5: Annular presser plate, 10: Pressure retention fluid chamber, 15: Seat loading recess.
Claims (1)
形成し、該凹所内に外周に係合用凹溝を形成した環状の
主シートを嵌装し、前記主シートの外側の前半部に隣接
して弾性材製の環状の補助シートを設け、該補助シート
は、その外周面の前部がバルブボディに、また補助シー
トの内周面の後部が主シートにそれぞれ係合して前記し
たバルブボディの凹所の内周面に内接するように嵌装せ
しめられ、前記補助シートの前面上半部を覆うように環
状の押え板をバルブボディに固設し、前記主シートの後
半外周面と該主シートに係合隣接された前記補助シート
の背面との両面に臨んだ室を圧力流体の流入する作圧流
体室に形成したことを特徴とするボールバルブ。An annular recess is formed in the valve body surrounding the circumferential surface of the valve body, and an annular main seat having an engagement groove formed on the outer periphery is fitted into the recess, and the outer front half of the main seat is fitted into the recess. An annular auxiliary seat made of an elastic material is provided adjacent to the auxiliary seat. An annular press plate is fixed to the valve body so as to be inscribed in the inner peripheral surface of the recess of the valve body and cover the upper half of the front surface of the auxiliary seat, and the second half of the main seat A ball valve characterized in that a chamber facing both sides of the outer peripheral surface and the back surface of the auxiliary seat which is engaged and adjacent to the main seat is formed as a pressure fluid chamber into which pressurized fluid flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977152026U JPS5932763Y2 (en) | 1977-11-12 | 1977-11-12 | ball pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977152026U JPS5932763Y2 (en) | 1977-11-12 | 1977-11-12 | ball pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5478937U JPS5478937U (en) | 1979-06-05 |
| JPS5932763Y2 true JPS5932763Y2 (en) | 1984-09-13 |
Family
ID=29137845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977152026U Expired JPS5932763Y2 (en) | 1977-11-12 | 1977-11-12 | ball pulp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5932763Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3208718A (en) * | 1963-03-15 | 1965-09-28 | Baldwin Lima Hamilton Corp | Spherical valve |
| US3380708A (en) * | 1965-04-12 | 1968-04-30 | Balon Corp | Body pressure relieving valve and seals therefor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5313075Y2 (en) * | 1975-03-28 | 1978-04-08 |
-
1977
- 1977-11-12 JP JP1977152026U patent/JPS5932763Y2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3208718A (en) * | 1963-03-15 | 1965-09-28 | Baldwin Lima Hamilton Corp | Spherical valve |
| US3380708A (en) * | 1965-04-12 | 1968-04-30 | Balon Corp | Body pressure relieving valve and seals therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5478937U (en) | 1979-06-05 |
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