JPS626358Y2 - - Google Patents
Info
- Publication number
- JPS626358Y2 JPS626358Y2 JP1978103582U JP10358278U JPS626358Y2 JP S626358 Y2 JPS626358 Y2 JP S626358Y2 JP 1978103582 U JP1978103582 U JP 1978103582U JP 10358278 U JP10358278 U JP 10358278U JP S626358 Y2 JPS626358 Y2 JP S626358Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- valve
- ball
- groove
- seat ring
- 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 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- 230000006866 deterioration Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Description
【考案の詳細な説明】
本考案は、バルブの閉鎖時に二次側配管内及び
ボール弁孔内に残つた残留流体（主として気体）
を自動的に排出することができるボールバルブに
関する。[Detailed description of the invention] This invention deals with residual fluid (mainly gas) remaining in the secondary piping and ball valve hole when the valve is closed.
Concerning a ball valve that can automatically discharge.
一般に、配管系においてバルブを閉鎖すると、
二次側配管内部に流体が残留するため、残留流体
の変質を招いたり、コンプレツサー等に使用され
る場合は、残留圧力により事故を招き、不具合を
生じていた。現在、これらの欠点を除去する手段
として、ボールバルブ本体にドレン抜用プラグを
取り付け、残留流体を排出する方法がとられてい
る。 Generally, when a valve is closed in a piping system,
Fluid remains inside the secondary piping, which causes deterioration of the residual fluid, and when used in compressors, etc., the residual pressure causes accidents and problems. Currently, as a means to eliminate these drawbacks, a method is used in which a drain plug is attached to the ball valve body to drain the residual fluid.
その一考案として、実公昭51−30016号公報の
ように、貫通孔を設けたプラグを、ボールバルブ
本体下方にねじ込み又は溶接によつて弁室に固定
し、バルブ閉鎖時にボール弁体に設けられた透孔
又は凹状溝をこの貫通孔に連通することにより、
二次側あるいは弁室間隙の残留流体をバルブ本体
外へ排出するものがある。しかしこの場合、プラ
グとボール弁体が液密に接触する必要性から、プ
ラグ先端（弁体接触部）にパツキング等を装着し
ている。従つて、この密着性を高めるとバルブ自
体の操作トルクが非常に大きくなり、ボールバル
ブとしては致命的な欠点となる。逆にこれを恐れ
て密着性を小さくすれば、残留液の排出が不可能
となる。また、プラグという部品が増え、これを
ねじ込み又は溶接で固定することにより、加工並
びに組立作業が極めて煩雑となり、結果的には通
常のボールバルブと比してかなりのコストアツプ
となる。 As one idea, as in Japanese Utility Model Publication No. 51-30016, a plug with a through hole is fixed to the valve chamber by screwing or welding to the lower part of the ball valve body, and when the valve is closed, a plug with a through hole is attached to the ball valve body. By communicating a through hole or a concave groove with this through hole,
Some valves discharge residual fluid on the secondary side or in the valve chamber gap to the outside of the valve body. However, in this case, packing or the like is attached to the tip of the plug (valve body contact portion) because of the need for liquid-tight contact between the plug and the ball valve body. Therefore, if this tightness is increased, the operating torque of the valve itself becomes extremely large, which is a fatal drawback for ball valves. On the other hand, if the adhesion is reduced in fear of this, it will be impossible to drain the residual liquid. In addition, the number of parts called plugs increases, and as these parts are fixed by screwing or welding, processing and assembly operations become extremely complicated, resulting in a considerable increase in cost compared to ordinary ball valves.
更に付け加えれば、ボール弁体を中心保持する
のに必要な放射線状間隔位置が、この場合、一次
側シート、二次側シート、プラグの接触によつて
とれないので、ボール弁体を中心に保持し、かつ
上記三点が同時接触、液密を保つのは至難の技で
ある。万一可能としても、加工精度、並びに組立
精度が要求されるのでコストアツプは免れない。 Furthermore, since the radial spacing required to hold the ball valve body in the center cannot be achieved in this case due to the contact between the primary seat, the secondary seat, and the plug, the ball valve body cannot be held in the center. However, it is extremely difficult to keep the three points mentioned above in simultaneous contact and liquid-tight. Even if it were possible, high processing and assembly precision would be required, which would inevitably increase costs.
本考案はこのような欠点を除去するため、種々
研究を重ねた結果、プラグ装着による無益な操作
トルクの増大、製品コストの増大を排して、バル
ブの閉鎖時にのみ二次側及びボールの弁孔内の残
留流体を排出することができるボールバルブを提
供したものである。 In order to eliminate these drawbacks, the present invention was developed as a result of various researches, eliminating the useless increase in operating torque and increase in product cost due to plug installation, and eliminating the need for the secondary side and ball valve only when the valve is closed. The present invention provides a ball valve capable of discharging residual fluid within the hole.
以下、本考案の一実施例に基づき詳細に説明す
る。第１図においてボールバルブの本体１，２
は、弁室３と流体流通孔４，５とから成り、弁室
３には、ボール６が回転自在に内装されている。 Hereinafter, an embodiment of the present invention will be described in detail. In Figure 1, the ball valve bodies 1 and 2
consists of a valve chamber 3 and fluid communication holes 4 and 5, and a ball 6 is rotatably housed in the valve chamber 3.
ボール６は、通常球形であり、該ボール６を貫
通した弁孔７は、水平状態でバルブに配管され、
かつ流通孔４，５の内径と実質的に等しい直径を
有する。このため、ボール６の弁孔７は、バルブ
の開放時には、流通孔４，５と連通し、バルブの
閉鎖時には、該流通孔を閉鎖することになる。
（第３図参照）ボール６の弁孔７と、流通孔４，
５との接触個所は、本体１，２に設けられた段部
にシートリング８，９を嵌着する。又、シートリ
ング９には、通孔１０を設け、なおかつ本体１と
の接触面には、通孔１０と連通した溝１１を設け
てある。（第５図参照）該シートリング９は、通
孔１０が、本体１の真横に来るように嵌着し、全
閉時の状態にのみ弁孔入口１３に開口する。（第
４図参照）さらに、ボール６には、その外表面か
ら弁孔７に貫通する通孔１２を二次側に設け、該
通孔１２は、閉時の状態に流通孔５に開口し、シ
ートリング９の通孔１０、及び溝１１を連通さ
せ、更に、本体１には、シートリング９の溝１１
に連通する貫通孔１４を設けて成る。なお、ボー
ル６の上部にスピンドル１５を接続し、かつ該ス
ピンドル１５を回転するハンドル１６がバルブ上
部に設置される。 The ball 6 is normally spherical, and the valve hole 7 passing through the ball 6 is horizontally piped to the valve.
Moreover, it has a diameter substantially equal to the inner diameter of the communication holes 4 and 5. Therefore, the valve hole 7 of the ball 6 communicates with the communication holes 4 and 5 when the valve is opened, and closes the communication holes when the valve is closed.
(See Figure 3) The valve hole 7 of the ball 6, the flow hole 4,
Seat rings 8 and 9 are fitted into step portions provided on the main bodies 1 and 2 at the contact points with the seat rings 5 and 5, respectively. Further, the seat ring 9 is provided with a through hole 10, and a groove 11 communicating with the through hole 10 is provided on the contact surface with the main body 1. (See FIG. 5) The seat ring 9 is fitted so that the through hole 10 is located directly beside the main body 1, and opens to the valve hole inlet 13 only in the fully closed state. (See FIG. 4) Furthermore, the ball 6 is provided with a through hole 12 on the secondary side that penetrates from the outer surface to the valve hole 7, and the through hole 12 opens into the communication hole 5 in the closed state. , the through hole 10 of the seat ring 9 and the groove 11 are communicated with each other, and the main body 1 further includes the groove 11 of the seat ring 9.
A through hole 14 is provided which communicates with the. In addition, a spindle 15 is connected to the upper part of the ball 6, and a handle 16 for rotating the spindle 15 is installed at the upper part of the valve.
次に、本考案に係るボールバルブが、例えば、
圧縮空気の配管系統に介在されている場合の作動
について説明する。この配管系統で、一般に、コ
ンプレツサーによる圧縮空気源は、一次側流通孔
４にあり、水平もしくは鉛直に配管される。該ボ
ールバルブが開放していると、圧縮空気は、流通
孔４からボール６の弁孔７を経て、流通孔５の二
次側に流通する。そして、流通孔４、及び５と弁
孔７の接続個所には、シートリング８，９が気密
を保持し、且つ、弁孔７に貫通した通孔１２を通
つて弁室３に満たされた圧縮空気は、シートリン
グ９の通孔１０がボール外表面で封止されている
ので、本体の外部に排出されことはない。（第２
図参照）ボールを閉鎖する場合、ハンドル１６に
よつてスピンドル１５を介してボール６を90゜回
転して、該ボールを第３図に示す位置に移動させ
る。この位置にすれば、流通孔４、及び５は、ボ
ール６によつて閉鎖され、その時シートリング９
に設けられた通孔１０が弁孔入口１３に開口す
る。（第４図参照）一方、弁孔７に貫通した通孔
１２は、二次側流通孔５に開通するため、二次側
の残留圧縮空気は、通孔１２を経て、弁孔７内に
流入し、かつ該弁孔７と弁室３に満さたれた圧縮
空気は、シートリング９の通孔１０を通り、溝１
１を経て、本体１の貫通孔１４よりボールバルブ
の外に排出される。 Next, the ball valve according to the present invention, for example,
The operation when interposed in a compressed air piping system will be explained. In this piping system, the compressed air source by the compressor is generally located in the primary side flow hole 4 and is piped horizontally or vertically. When the ball valve is open, compressed air flows from the flow hole 4 through the valve hole 7 of the ball 6 to the secondary side of the flow hole 5. Seat rings 8 and 9 maintain airtightness at the connection points between the flow holes 4 and 5 and the valve hole 7, and the valve chamber 3 is filled through the through hole 12 penetrating the valve hole 7. Since the through hole 10 of the seat ring 9 is sealed by the outer surface of the ball, the compressed air is not discharged to the outside of the main body. (Second
When closing the ball, the handle 16 rotates the ball 6 through 90 DEG via the spindle 15 to move it to the position shown in FIG. In this position, the flow holes 4 and 5 are closed by the balls 6, and the seat ring 9 is then closed.
A through hole 10 provided in the valve hole inlet 13 opens into the valve hole inlet 13 . (See Fig. 4) On the other hand, since the through hole 12 penetrating the valve hole 7 opens into the secondary side circulation hole 5, residual compressed air on the secondary side passes through the through hole 12 and flows into the valve hole 7. The compressed air flowing in and filling the valve hole 7 and the valve chamber 3 passes through the through hole 10 of the seat ring 9 and enters the groove 1.
1, and is discharged to the outside of the ball valve through the through hole 14 of the main body 1.
ボールとシートリングの通孔１０について、さ
らにその構造を詳述すると次のようになる。通孔
１０の入口１０ａは、バルブの閉鎖時にのみ弁孔
入口１３と連通し、一般にその内径は小径であ
る。そして、バルブの開放時にボール６が回転さ
れると瞬間にボールの外表面は、通孔の入口１０
ａに密着し、該ボールが中間のどのような回転位
置にあつても、通孔１０は弁孔７及び弁室に連通
しないことを要し、また、通孔１２は、一般に、
弁孔７の軸線と直角で小径で設けられ、該通孔１
２のボールの表面上の入口は、スピンドル軸線で
90゜回転してもシートリング９の通孔１０とは一
致しない高さ関係にある（第５図参照）
このように本考案に係るボールバルブは、貫通
孔を有するプラグを排し、従来のプラグに相当す
る役割をシートリングに持たせた簡単な構造によ
り形成されている。従つて、従来のこの種のボー
ルバルブが有していた操作トルクの増大は、通常
のボールバルブと全く同程度にまで押さえられ、
弁本体やボール弁体の加工も従来のものに比べて
飛躍的に容易になると同時に、組立コストのアツ
プが全くなくなるので結果的には極めて安価なボ
ールバルブが提供される。このバルブは開閉操作
によつて任意に流体の流通、閉鎖を行なうと共
に、バルブの閉鎖時に二次側及び弁孔内の残留流
体を自動的に排出できるため、残留流体の変質を
防止し、残留圧力による破裂等のトラブルが解消
でき、更にドレン弁を開く必要がない。従つて従
来のこの種のバルブ以上に操作性に優れた、安価
なボールバルブを提供する本考案は大変有用であ
る。 The structure of the through hole 10 between the ball and the seat ring will be described in detail as follows. The inlet 10a of the through hole 10 communicates with the valve hole inlet 13 only when the valve is closed, and generally has a small inner diameter. Then, when the ball 6 is rotated when the valve is opened, the outer surface of the ball is instantly exposed to the entrance 10 of the through hole.
a, and no matter what intermediate rotational position the ball is in, the through hole 10 must not communicate with the valve hole 7 or the valve chamber, and the through hole 12 is generally
The through hole 1 is provided with a small diameter at right angles to the axis of the valve hole 7.
The inlet on the surface of the ball in 2 is at the spindle axis.
Even when rotated by 90 degrees, the height relationship does not match the through hole 10 of the seat ring 9 (see Figure 5).As described above, the ball valve according to the present invention eliminates the plug having the through hole and is different from the conventional one. It has a simple structure in which the seat ring has the role of a plug. Therefore, the increase in operating torque that conventional ball valves of this type had has been suppressed to the same level as normal ball valves.
Machining of the valve body and ball valve body is also much easier than in the past, and at the same time there is no increase in assembly costs, resulting in an extremely inexpensive ball valve. This valve allows fluid to flow through and close as desired by opening and closing operations, and when the valve is closed, it can automatically discharge residual fluid on the secondary side and in the valve hole, preventing deterioration of the residual fluid and preventing residual fluid from remaining in the valve. Problems such as bursting due to pressure can be solved, and there is no need to open the drain valve. Therefore, the present invention, which provides an inexpensive ball valve that has better operability than conventional valves of this type, is very useful.
図面はいずれも本考案からなる一実施例を示
し、第１図は縦断面図、第２図は開放時の横断面
図、第３図は閉鎖時の横断面図、第４図はシート
リングの横断面図、第５図はシートリングとボー
ルの斜視図である。
１…本体、２…本体、３…弁室、４…流通孔、
５…流通孔、６…ボール、７…弁孔、８…シート
リング、９…シートリング、１０…通孔、１０ａ
…通孔の入口、１１…溝、１２…通孔、１３…弁
孔入口、１４…貫通孔、１５…スピンドル、１６
…ハンドル。
The drawings all show one embodiment of the present invention, and Fig. 1 is a longitudinal cross-sectional view, Fig. 2 is a cross-sectional view when opened, Fig. 3 is a cross-sectional view when closed, and Fig. 4 is a seat ring. FIG. 5 is a perspective view of the seat ring and ball. 1... Main body, 2... Main body, 3... Valve chamber, 4... Distribution hole,
5...Flow hole, 6...Ball, 7...Valve hole, 8...Seat ring, 9...Seat ring, 10...Through hole, 10a
...Entrance of the through hole, 11...Groove, 12...Through hole, 13...Valve hole inlet, 14...Through hole, 15...Spindle, 16
…handle.
Claims (1)
流通孔４，５の側より押えるシートリング８，９
を組込み、どちらか一方のシートリングに弁体６
による全閉時の状態にのみ弁孔入口１３に開口す
る通孔１０を設けると共に本体１との接触面に通
孔１０と連通した溝１１を形成し、かつ弁体６の
二次側外表面から弁孔７に貫通する通孔１２を設
け、更に本体１には溝１１に連通する貫通孔１４
を設けてバルブの閉鎖時に二次側の流通孔５を通
孔１２，弁孔７，弁孔入口１３，通孔１０，溝１
１次いで貫通孔１４を経て外部に連通することに
より、二次側配管内及び弁孔７内部の残留流体を
排出することを特徴とするボールバルブ。 The valve body 1 includes a ball-shaped valve body 6 and seat rings 8, 9 that hold it down from the communication holes 4, 5 on both sides.
Insert the valve body 6 into either seat ring.
A through hole 10 that opens to the valve hole inlet 13 only in the fully closed state is provided, and a groove 11 communicating with the through hole 10 is formed on the contact surface with the main body 1. A through hole 12 is provided in the main body 1 to communicate with the groove 11.
When the valve is closed, the secondary side circulation hole 5 is connected to the through hole 12, the valve hole 7, the valve hole inlet 13, the through hole 10, and the groove 1.
1. A ball valve characterized in that residual fluid inside the secondary side piping and inside the valve hole 7 is discharged by communicating with the outside through the through hole 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978103582U JPS626358Y2 (en) | 1978-07-27 | 1978-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978103582U JPS626358Y2 (en) | 1978-07-27 | 1978-07-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5520737U JPS5520737U (en) | 1980-02-09 |
| JPS626358Y2 true JPS626358Y2 (en) | 1987-02-13 |
Family
ID=29044225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978103582U Expired JPS626358Y2 (en) | 1978-07-27 | 1978-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS626358Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5528046B2 (en) * | 2009-10-01 | 2014-06-25 | 旭有機材工業株式会社 | Ball valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130016U (en) * | 1974-08-26 | 1976-03-04 |
-
1978
- 1978-07-27 JP JP1978103582U patent/JPS626358Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130016U (en) * | 1974-08-26 | 1976-03-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5520737U (en) | 1980-02-09 |
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