JPH074545A - Exhaust valve - Google Patents
Exhaust valveInfo
- Publication number
- JPH074545A JPH074545A JP16973993A JP16973993A JPH074545A JP H074545 A JPH074545 A JP H074545A JP 16973993 A JP16973993 A JP 16973993A JP 16973993 A JP16973993 A JP 16973993A JP H074545 A JPH074545 A JP H074545A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- exhaust
- port
- exhaust valve
- hole
- 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.)
- Granted
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は水配管に混入している空
気のみを自動的に排出する排気弁に関し、特に、どのよ
うな圧力状態であっても必要とする大きさの弁口を開口
して排気することのできるものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust valve for automatically discharging only air mixed in a water pipe, and particularly, to open a valve opening of a required size under any pressure condition. And what can be exhausted.
【０００２】通常排気弁には、水配管への送水初期のみ
に排気弁口を開口して低圧大量の空気を排出する初期急
速排気弁と呼ばれるものと、送水初期のみならず空気が
来れば開口し水が来れば閉口する自動排気弁と呼ばれる
ものの２種類がある。Usually, an exhaust valve is called an initial rapid exhaust valve that opens an exhaust valve port to discharge a large amount of low-pressure air only when water is initially supplied to a water pipe. There are two types of so-called automatic exhaust valves that close when water comes in.
【０００３】[0003]
【従来の技術】従来の排気弁としては例えば実公平４−
５４３８０号公報に示されているものが用いられてい
た。これは、フロ―トとレバ―機構により大弁口と小弁
口とを同時に開閉させるものであり、大弁口で初期の大
量の空気を排出する初期急速排気弁の機能を果し、小弁
口で空気が来れば開口する自動排気弁の機能を果すもの
である。2. Description of the Related Art A conventional exhaust valve is, for example,
The one disclosed in Japanese Patent No. 54380 was used. This is to open and close the large valve opening and the small valve opening at the same time by the float and lever mechanism.The large valve opening functions as an initial rapid exhaust valve that discharges a large amount of initial air. It functions as an automatic exhaust valve that opens when air comes in at the valve opening.
【０００４】[0004]
【発明が解決しようとする課題】上記従来のものでは、
初期急速排気弁と自動排気弁の２つの機能を１つの弁で
果すことができるが、フロ―トとレバ―と大小２つの弁
口を必要とするために、構造が複雑になる問題があっ
た。SUMMARY OF THE INVENTION In the above conventional one,
The two functions of the initial rapid exhaust valve and the automatic exhaust valve can be achieved by a single valve, but there is a problem that the structure becomes complicated because it requires a float, a lever, and two large and small valve openings. It was
【０００５】また上記従来のものでは、自動排気弁とし
ての機能を果す場合の小弁口の弁口面積が小さく、従っ
て多量の空気が流入してきた場合に排出しきれなくなる
問題があった。これは、一定の浮力と重力を有するフロ
―トで開口することのできる弁口面積は、弁口前後の圧
力差により決まり、それ以上の圧力差では開口できなく
なるからである。Further, in the above-mentioned conventional type, there is a problem that the valve opening area of the small valve opening when functioning as an automatic exhaust valve is small, so that when a large amount of air has flowed in, it cannot be exhausted. This is because the area of the valve opening that can be opened by the float having a constant buoyancy and gravity is determined by the pressure difference before and after the valve opening, and cannot be opened by a pressure difference larger than that.
【０００６】また上記従来のものでは、入口から水と空
気の混合流体が勢いよく流入してきた場合に、空気のみ
ならず本来排出すべきでない一部の水も弁口から排出し
てしまい、排気弁周辺を排出水により汚してしまう問題
があった。Further, in the above-mentioned conventional apparatus, when a mixed fluid of water and air is vigorously flowing in from the inlet, not only the air but also a part of the water which should not be discharged is discharged from the valve opening, and exhausted. There was a problem that the area around the valve was polluted by the discharged water.
【０００７】従って本発明の技術的課題は、簡単な構造
で初期急速排気弁と自動排気弁の相方の機能を果し、ど
のような圧力状態であっても大量の空気を排出すること
ができると共に、水の排出を確実に防止できる排気弁を
得ることである。Therefore, the technical problem of the present invention is that a simple structure fulfills the functions of both sides of the initial rapid exhaust valve and the automatic exhaust valve, and a large amount of air can be exhausted under any pressure condition. At the same time, it is to obtain an exhaust valve that can reliably prevent the discharge of water.
【０００８】[0008]
【課題を解決するための手段】上記の技術的課題を解決
するために講じた本発明の技術的手段は、弁ケ―シング
で弁室を形成し、弁室の下部に流入口を上部に排気口を
設け、排気口と弁室の間の両者を連通する連通孔を開け
た弁座部材を取り付け、該連通孔内に摺動自在に筒状の
排気弁体を配置し、該排気弁体の弁室内部分に直接にま
たは間接的にフロ―トを取り付け、排気弁体に貫通孔を
形成して、該貫通孔の一方をフロ―ト上部の弁室内に開
口し、他方を出口側弁ケ―シングに形成した孔部に開口
して、フロ―ト上部の一方の開口の周囲に円筒壁をフロ
―トと固着して配置すると共に、排気弁体の側部であっ
て、フロ―ト下降時には排気口と連通しフロ―ト上昇時
には上記孔部と連通する位置に、上記貫通孔と連通する
排気弁孔を設けたものである。The technical means of the present invention taken to solve the above technical problems is to form a valve chamber by valve casing, and have an inflow port in the lower part of the valve chamber in the upper part. An exhaust port is provided, and a valve seat member having a communication hole for communicating both the exhaust port and the valve chamber is attached, and a cylindrical exhaust valve body is slidably arranged in the communication hole. A float is attached directly or indirectly to the valve chamber part of the body, a through hole is formed in the exhaust valve body, one of the through holes is opened in the valve chamber above the float, and the other is on the outlet side. An opening is formed in the hole formed in the valve casing, and a cylindrical wall is fixedly attached to the float around one opening in the upper part of the float. -An exhaust valve hole that communicates with the through hole is provided at a position that communicates with the exhaust port when the float descends and communicates with the hole when the float rises. Than it is.
【０００９】[0009]
【作用】上記の技術的手段の作用は下記の通りである。
弁室内の水位が低くフロ―トが下降している場合、筒状
弁体に設けた排気弁孔は排気口と連通する位置にあり、
流入口から弁室内に流入してきた空気は、弁室内の開口
と貫通孔と排気弁孔を経て排気口から排出される。流入
口から弁室内へ水が流入してくるとフロ―トはその浮力
により上昇する。フロ―トの上昇と共に筒状の排気弁体
も上昇して、排気弁体に設けた排気弁孔は孔部と連通す
ることとなり、排気口と連通することがなくなり、水の
排出を防止すると共に空気の排出を停止する。弁室内へ
再度空気が流入して水位が低下するとフロ―トも低下し
て、排気弁孔が排気口と再度連通して空気を排出する。
弁室内の水位に応じてこの作動を繰り返す。The operation of the above technical means is as follows.
When the water level in the valve chamber is low and the float is descending, the exhaust valve hole provided in the tubular valve element is in a position communicating with the exhaust port,
The air flowing into the valve chamber through the inflow port is discharged from the exhaust port through the opening in the valve chamber, the through hole, and the exhaust valve hole. When water flows from the inlet into the valve chamber, the float rises due to its buoyancy. As the float rises, the cylindrical exhaust valve body also rises, and the exhaust valve hole provided in the exhaust valve body communicates with the hole, so it does not communicate with the exhaust port and prevents water discharge. At the same time, the discharge of air is stopped. When air again flows into the valve chamber and the water level drops, the float also drops, and the exhaust valve hole communicates with the exhaust port again to discharge air.
This operation is repeated depending on the water level in the valve chamber.
【００１０】排気弁体に貫通孔を設けてその一方を弁室
内に開口すると共に、他方を出口側弁ケ―シングに形成
した孔部に開口したことにより、フロ―ト上昇時に排気
弁体内は出口側においても弁室内圧力が作用することと
なり、排気弁体には弁室内圧力と出口側の圧力差に相当
する差圧が生じず、従って低圧から高圧までどのような
圧力状態であっても、小さなフロ―ト浮力でもって大き
な排気弁孔を開弁することができ、大量の空気を排出す
ることができる。By providing a through hole in the exhaust valve body, one of which is opened in the valve chamber and the other of which is opened in a hole formed in the outlet side valve casing, the inside of the exhaust valve body is increased when the float is raised. Since the pressure in the valve chamber acts on the outlet side as well, a pressure difference corresponding to the pressure difference between the valve chamber pressure and the outlet side does not occur in the exhaust valve body, so that no matter what the pressure state from low pressure to high pressure, With a small float buoyancy, a large exhaust valve hole can be opened, and a large amount of air can be discharged.
【００１１】フロ―ト上部の一方の開口の周囲に円筒壁
を配置したことにより、流入口から水と空気の混合流体
が弁室内へ勢いよく流入してきても、円筒壁によって水
が一方の開口内に流入することが防止され、従って排気
口から水が外部に排出されることがない。By arranging the cylindrical wall around one opening in the upper part of the float, even if the mixed fluid of water and air is vigorously flowing into the valve chamber through the inlet, the water can be circulated in one opening by the cylindrical wall. It is prevented from flowing into the inside, so that no water is discharged to the outside through the exhaust port.
【００１２】[0012]
【実施例】上記の技術的手段の具体例を示す実施例を説
明する（図１参照）。流入口１を形成した下本体２と、
排気口３を形成した上本体４と、上下本体２，４とで弁
室５を形成する円筒体６で弁ケ―シングを構成する。下
本体２に弁室５と区画する壁７を設け、壁７に流入口１
と弁室５を連通する複数の穴８，９を設ける。EXAMPLE An example showing a concrete example of the above technical means will be described (see FIG. 1). A lower body 2 having an inflow port 1,
A valve casing is configured by an upper body 4 having an exhaust port 3 and a cylindrical body 6 that forms a valve chamber 5 with the upper and lower bodies 2, 4. The lower body 2 is provided with a wall 7 that separates from the valve chamber 5, and the wall 7 has an inlet 1
And a plurality of holes 8 and 9 communicating with the valve chamber 5.
【００１３】弁室５の上部であって上本体４の下部中央
にガスケット１０を介して弁座部材１１をねじ結合す
る。弁座部材１１の中心部に弁室５と排気口３とを連通
する連通孔１２を開け、その連通孔１２内に摺動自在に
長尺で筒状の排気弁体１３を摺動リング３０を介して配
置する。従って連通孔１２の内径は排気弁体１３の外径
よりも僅かに大きなものとする。A valve seat member 11 is screwed to the upper part of the valve chamber 5 and the center of the lower part of the upper body 4 via a gasket 10. A communication hole 12 that communicates the valve chamber 5 and the exhaust port 3 is formed in the center of the valve seat member 11, and a long and long cylindrical exhaust valve body 13 is slidably slidable in the communication hole 12 in a sliding ring 30. Place through. Therefore, the inner diameter of the communication hole 12 is made slightly larger than the outer diameter of the exhaust valve body 13.
【００１４】排気弁体１３の内部には貫通孔１５を形成
して、一方を弁室５内に孔１６を介して開口し、他方を
上本体４に設けた孔部１９に上端の孔２０を介して開口
する。排気弁体１３の弁室５内部に中空の球形フロ―ト
２１を溶接により取り付ける。孔１６の周囲には、上端
開放の円筒壁１７をフロ―ト２１の上部に溶接により取
り付ける。円筒壁１７の上端全周には、弁座部材１１の
下端面と当接して連通孔１２を気密にシ―ルする合成ゴ
ム製のシ―ルリング１８を取り付ける。また円筒壁１７
の下部にはオリフィス孔２５を設ける。排気弁体１３の
下端部２２は下本体２の壁７上に戴置する。A through hole 15 is formed in the exhaust valve body 13, one of which is opened in the valve chamber 5 through a hole 16, and the other of which is formed in a hole portion 19 provided in the upper body 4 and has an upper end hole 20. Open through. A hollow spherical float 21 is attached to the inside of the valve chamber 5 of the exhaust valve body 13 by welding. Around the hole 16, a cylindrical wall 17 having an open upper end is attached to the upper portion of the float 21 by welding. A synthetic rubber seal ring 18 which is in contact with the lower end surface of the valve seat member 11 and seals the communication hole 12 in an airtight manner is attached to the entire circumference of the upper end of the cylindrical wall 17. Also, the cylindrical wall 17
An orifice hole 25 is provided in the lower part of the. The lower end portion 22 of the exhaust valve body 13 is placed on the wall 7 of the lower body 2.
【００１５】上本体４の孔部１９も排気弁体１３が摺動
できるように、その内径を排気弁体１３の外径より僅か
に大きなものとすると共に、摺動リング３１を配置す
る。図１に示すようにフロ―ト２１が下降している場合
に、排気口３と連通する位置に、排気弁孔２３を設け
る。排気弁孔２３は貫通孔１５と連通すると共に、フロ
―ト２１が上昇すると孔部１９内に位置する箇所に設け
る。排気弁孔２３の大きさや形状や数は、排気弁の排出
流量特性に応じて適宜、円形や矩形や扇形等を選定する
ことができる。In order to allow the exhaust valve body 13 to slide also in the hole portion 19 of the upper body 4, the inner diameter thereof is made slightly larger than the outer diameter of the exhaust valve body 13 and the sliding ring 31 is arranged. As shown in FIG. 1, when the float 21 is descending, an exhaust valve hole 23 is provided at a position communicating with the exhaust port 3. The exhaust valve hole 23 communicates with the through hole 15 and is provided at a position located inside the hole portion 19 when the float 21 rises. The size, shape, and number of the exhaust valve holes 23 can be appropriately selected from a circular shape, a rectangular shape, a fan shape, or the like according to the exhaust flow rate characteristics of the exhaust valve.
【００１６】次に作用を説明する。排気弁は図示しない
水配管に流入口１を接続して、水配管内の空気のみを自
動的に排出するものであり、図１に示すように弁室５内
のフロ―ト２１が下降している場合は、排気弁体１３は
壁７上に位置し、排気弁孔２３は排気口３と連通する。
従って、流入口１から流入してきた空気は穴８，９と孔
１６と貫通孔１５と排気弁孔２３とを経て排気口３から
排出される。Next, the operation will be described. The exhaust valve connects the inflow port 1 to a water pipe (not shown) and automatically discharges only the air in the water pipe. As shown in FIG. 1, the float 21 in the valve chamber 5 is lowered. In this case, the exhaust valve body 13 is located on the wall 7, and the exhaust valve hole 23 communicates with the exhaust port 3.
Therefore, the air flowing in from the inflow port 1 is exhausted from the exhaust port 3 through the holes 8 and 9, the hole 16, the through hole 15, and the exhaust valve hole 23.
【００１７】流入口１から弁室５内に水が流入してくる
と、弁室５内の水位が上昇し、フロ―ト２１もその浮力
により上昇する。フロ―ト２１の上昇と共に排気弁体１
３も上昇し、排気弁孔２３が孔部１９内に位置すると、
排気弁孔２３は孔部１９により閉止されることとなり、
水の排気口３への排出が防止されると共に、空気の排出
も停止される。When water flows into the valve chamber 5 from the inlet 1, the water level in the valve chamber 5 rises and the float 21 also rises due to its buoyancy. Exhaust valve body 1 as the float 21 rises
3 also rises, and the exhaust valve hole 23 is located in the hole portion 19,
The exhaust valve hole 23 is closed by the hole portion 19,
The discharge of water to the exhaust port 3 is prevented, and the discharge of air is stopped.
【００１８】フロ―ト２１の上昇時に、上本体４の孔部
１９は、孔２０と貫通孔１５と孔１６及びオリフィス孔
２５とを介して弁室５と連通しており、孔部１９内の圧
力は弁室５内の圧力と等しいものとなる。従って、排気
弁体１３が下動する場合に、弁室５内圧力と排気口３圧
力との圧力差に相当する差圧が作用することがなくな
り、弁室５内圧力すなわち流入口１側の圧力が低圧から
高圧までどのような圧力であっても、一定のフロ―ト浮
力により排気弁孔２３を開閉することが可能となる。When the float 21 rises, the hole portion 19 of the upper body 4 communicates with the valve chamber 5 through the hole 20, the through hole 15, the hole 16 and the orifice hole 25, and the inside of the hole portion 19 Is equal to the pressure inside the valve chamber 5. Therefore, when the exhaust valve body 13 moves downward, the pressure difference corresponding to the pressure difference between the valve chamber 5 internal pressure and the exhaust port 3 pressure does not act, and the valve chamber 5 internal pressure, that is, the inlet 1 side Regardless of the pressure from low pressure to high pressure, the exhaust valve hole 23 can be opened and closed by a constant float buoyancy.
【００１９】流入口１から水と空気の混合流体が勢いよ
く流入してきても、排気口３に通じる一方の孔１６の周
囲には円筒壁１７が配置されており、混合流体を孔１６
から排気口３へ通過させることを防止して水の排出を防
止することができる。本実施例においては、円筒壁１７
の上端全体を開放としたが少しの隙間を残して上端の一
部を覆うこともできる。Even if the mixed fluid of water and air is vigorously flowing in from the inflow port 1, a cylindrical wall 17 is arranged around one hole 16 leading to the exhaust port 3 to allow the mixed fluid to flow through the hole 16.
It is possible to prevent water from passing through the exhaust port 3 to prevent water from being discharged. In this embodiment, the cylindrical wall 17
Although the entire upper end of the above is opened, it is possible to cover a part of the upper end with a small gap left.
【００２０】本実施例においては、フロ―ト２１を排気
弁体１３に直接に取り付けた例を示したが、フロ―トを
レバ―フロ―ト構造として、レバ―のフロ―トとは反対
側部に排気弁体１３を連結することもできる。In this embodiment, an example in which the float 21 is directly attached to the exhaust valve body 13 has been shown, but the float has a lever-float structure and is opposite to the lever's float. The exhaust valve body 13 may be connected to the side portion.
【００２１】[0021]
【発明の効果】本発明は下記の特有の効果を生じる。筒
状の排気弁体とフロ―トによる簡単な構造で、低圧から
高圧までどのような圧力状態であっても差圧に関係なく
大きな排気弁孔を開けることができ、初期急速排気弁と
自動排気弁の２つの機能を１つの弁でもって果すことが
できると共に、水が排気口から排出されることを防止す
ることができ、排出水による汚れを防止することができ
る。The present invention produces the following unique effects. With a simple structure consisting of a cylindrical exhaust valve and a float, it is possible to open a large exhaust valve hole regardless of the pressure difference from low pressure to high pressure. The two functions of the exhaust valve can be fulfilled by one valve, and it is possible to prevent water from being discharged from the exhaust port, and it is possible to prevent contamination by the discharged water.
【図１】本発明の排気弁の実施例の断面図である。FIG. 1 is a cross-sectional view of an embodiment of an exhaust valve of the present invention.
１ 流入口 ３ 排気口 ５ 弁室 １１ 弁座部材 １２ 連通孔 １３ 排気弁体 １５ 貫通孔 １７ 円筒壁 １９ 孔部 ２１ フロ―ト ２３ 排気弁孔 1 Inlet 3 Exhaust Outlet 5 Valve Chamber 11 Valve Seat Member 12 Communication Hole 13 Exhaust Valve Disc 15 Through Hole 17 Cylindrical Wall 19 Hole 21 Float 23 Exhaust Valve Hole
Claims (1)
部に流入口を上部に排気口を設け、排気口と弁室の間に
両者を連通する連通孔を開けた弁座部材を取り付け、該
連通孔内に摺動自在に筒状の排気弁体を配置し、該排気
弁体の弁室内部分に直接にまたは間接的にフロ―トを取
り付け、排気弁体に貫通孔を形成して該貫通孔の一方を
フロ―ト上部の弁室内に開口し他方を出口側弁ケ―シン
グに形成した孔部に開口して、フロ―ト上部の一方の開
口の周囲に円筒壁をフロ―トと固着して配置すると共
に、排気弁体の側部であって、フロ―ト下降時には排気
口と連通しフロ―ト上昇時には上記孔部と連通する位置
に、上記貫通孔と連通する排気弁孔を設けたことを特徴
とする排気弁。1. A valve seat in which a valve chamber is formed by valve casing, an inflow port is provided at a lower part of the valve chamber, an exhaust port is provided at an upper part thereof, and a communication hole is formed between the exhaust port and the valve chamber to communicate the two. A member is attached, a cylindrical exhaust valve body is slidably arranged in the communication hole, and a float is directly or indirectly attached to the valve chamber portion of the exhaust valve body, and a through hole is formed in the exhaust valve body. And one of the through holes is opened in the valve chamber in the upper part of the float, and the other is opened in the hole formed in the valve casing on the outlet side, and a cylinder is formed around one opening in the upper part of the float. The wall is fixedly attached to the float, and the through hole is located on the side of the exhaust valve body so as to communicate with the exhaust port when the float descends and communicate with the hole when the float rises. An exhaust valve having an exhaust valve hole communicating with the exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16973993A JP2835683B2 (en) | 1993-06-15 | 1993-06-15 | Exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16973993A JP2835683B2 (en) | 1993-06-15 | 1993-06-15 | Exhaust valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH074545A true JPH074545A (en) | 1995-01-10 |
| JP2835683B2 JP2835683B2 (en) | 1998-12-14 |
Family
ID=15891953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16973993A Expired - Lifetime JP2835683B2 (en) | 1993-06-15 | 1993-06-15 | Exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2835683B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4841477B2 (en) * | 2007-03-22 | 2011-12-21 | クボタシーアイ株式会社 | Air valve for water pipe |
-
1993
- 1993-06-15 JP JP16973993A patent/JP2835683B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2835683B2 (en) | 1998-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5949381B2 (en) | wash valve | |
| JPH09287533A (en) | Gas exhausting device for fuel tank | |
| JP2835683B2 (en) | Exhaust valve | |
| JP2835680B2 (en) | Exhaust valve | |
| JP2001193108A (en) | Fire hydrant with air valve | |
| JPH074546A (en) | Exhaust valve | |
| JPH074598A (en) | Float valve | |
| JP2004278573A (en) | Air vent device for conduit | |
| JPH07253194A (en) | Trap capable of closing at failure | |
| JPH0544893A (en) | Float valve | |
| JPH06323495A (en) | Float valve | |
| JPH0544896A (en) | Float valve | |
| JP2961344B2 (en) | Float valve | |
| JPH085093A (en) | Air conditioner drain valve | |
| JP3476254B2 (en) | Float trap | |
| JPH02300600A (en) | Pilot type steam trap | |
| JP2961342B2 (en) | Pilot type steam trap | |
| JPH06323494A (en) | Float valve | |
| JPH0638221Y2 (en) | Gas / liquid fluid switching valve | |
| JPS59113383A (en) | Quick suction air valve with exhaust quantity control valve | |
| JP2961343B2 (en) | Pilot type steam trap | |
| JPS5922368Y2 (en) | gaskotok | |
| JP2005121085A (en) | Exhaust valve | |
| JPH02240468A (en) | Exhaust valve | |
| JP2928899B2 (en) | Float valve |