JP2001221355A - Air valve with built-in repairing valve - Google Patents
Air valve with built-in repairing valveInfo
- Publication number
- JP2001221355A JP2001221355A JP2000033860A JP2000033860A JP2001221355A JP 2001221355 A JP2001221355 A JP 2001221355A JP 2000033860 A JP2000033860 A JP 2000033860A JP 2000033860 A JP2000033860 A JP 2000033860A JP 2001221355 A JP2001221355 A JP 2001221355A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- repair
- air
- valve body
- air valve
- 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.)
- Pending
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Details Of Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は水道管路の高所に
取付けて管路内の空気を吸排する空気弁、特にその補修
の際に使用する補修弁を備えた空気弁に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air valve mounted at a high position in a water pipe for sucking and discharging air in the pipe, and more particularly to an air valve having a repair valve used for repairing the air.
【０００２】[0002]
【従来の技術】水道管路の高所に取付けられる空気弁の
分解整備、部品取替えなどの補修時には、水道管路と空
気弁とを遮断して、管路内の水が外部へ流出することを
防止する必要があるため、管路と空気弁との間に止水を
行うための補修弁が設けられる。2. Description of the Related Art When disassembling and repairing an air valve installed at a high place in a water pipe or performing repairs such as replacement of parts, the water pipe and the air valve are shut off, and water in the pipe flows out. Therefore, a repair valve for stopping water is provided between the pipeline and the air valve.
【０００３】従来、マンホール内への据え付けスペース
を小さくして据え付けに伴う工事を簡略化し、止水作業
を容易にし、また、地下浅層埋設を可能とするなどの観
点から、空気弁と前記補修弁を一体化した補修弁付き空
気弁が知られている。Conventionally, air valves and the above-mentioned repairs have been made from the standpoint of reducing installation space in manholes, simplifying the work involved in installation, facilitating water stoppage work, and enabling shallow underground burial. A pneumatic valve with a repair valve in which a valve is integrated is known.
【０００４】例えば、特開平１０ー３１８３９３号公報
においては、水道管路に補修弁を介して接続した空気弁
の弁箱の下部に前記補修弁に連通する接続口が形成され
るとともに、前記弁箱の上部に大空気孔が形成され、前
記弁箱内に弁室を構成する案内筒体が配設され、該案内
筒体内に、大空気孔を開閉するための遊動弁体と、該遊
動弁体の中央部に形成した小空気孔を開閉するためのフ
ロートとが昇降可能に設けられ、前記接続口を開閉する
ための水平方向にスライド可能な円形又は扇形の板状弁
体を有する補修弁付き空気弁が示されている。また、特
開平１０ー３１８３９６号公報においては、前記板状弁
体が矩形状である補修弁付き空気弁が示されている。For example, in Japanese Patent Application Laid-Open No. 10-318393, a connection port communicating with the repair valve is formed below a valve box of an air valve connected to a water pipe via a repair valve. A large air hole is formed in the upper part of the box, a guide cylinder forming a valve chamber is disposed in the valve box, and a floating valve body for opening and closing the large air hole is provided in the guide cylinder. A float for opening and closing a small air hole formed at the center of the valve body is provided so as to be able to move up and down, and has a horizontally or slidable circular or fan-shaped plate-shaped valve body for opening and closing the connection port. A valved pneumatic valve is shown. Japanese Patent Application Laid-Open No. 10-318396 discloses an air valve with a repair valve in which the plate-shaped valve body is rectangular.
【０００５】また、特開平１０ー２９９９２７号公報で
は、有底円筒状でその底板の外周部と周壁上部に通孔を
有する弁箱と、この弁箱の外周面との間に流体流路を形
成する外筒と、弁箱の上部開口を覆うように設けた中央
部に大径通気孔を有する弁体部とからなり、前記弁箱に
フロート弁体及び中央に小通気孔を有する遊動弁体を上
下動可能に収容した補修弁機能を有する空気弁が示され
ている。In Japanese Patent Application Laid-Open No. 10-299927, a fluid flow path is provided between a valve box having a bottomed cylindrical shape having an outer peripheral portion of a bottom plate and a through hole in an upper peripheral wall, and an outer peripheral surface of the valve case. A floating valve body having a large-diameter vent hole at a central portion provided to cover an upper opening of the valve box, and having a float valve body and a small vent hole at the center. An air valve having a repair valve function in which a body is vertically movably accommodated is shown.
【０００６】この空気弁では、前記外筒の上端に形成さ
れたフランジの上面に雌ねじ部が突設され、また、弁箱
の上面に形成されたフランジの外周面に雄ねじ部が設け
られ、このフランジに前記弁体部がボルトで固定されて
いる。前記ボルトのヘッド部に係合する操作ハンドルで
弁箱を回動させて前記雄ねじ部をねじ込むと前記弁箱が
回動しながら下降する。この弁箱の底板下面に取付けら
れたシール部材が前記外筒の底板上面に圧接され、管路
と前記弁箱・外筒間の流体流路とが遮断され、補修弁と
して機能するようになっている。In this pneumatic valve, a female thread is provided on the upper surface of a flange formed on the upper end of the outer cylinder, and a male screw is provided on the outer peripheral surface of the flange formed on the upper surface of the valve box. The valve body is fixed to the flange with bolts. When the valve box is turned by the operation handle engaging with the head portion of the bolt and the male screw portion is screwed, the valve box is lowered while turning. A seal member attached to the lower surface of the bottom plate of the valve box is pressed against the upper surface of the bottom plate of the outer cylinder, so that the pipeline and the fluid flow path between the valve box and the outer cylinder are cut off, so that the valve functions as a repair valve. ing.
【０００７】[0007]
【発明が解決しようとする課題】しかし、前記の特開平
１０ー３１８３９３号公報、特開平１０ー３１８３９６
号公報に示された水平方向にスライド可能な前記板状弁
体を有する補修弁付き空気弁では、補修弁の据付けスペ
ースが大きくなるため、実用上大きなピットが必要とな
り、据付け工事に多くの手間と費用を要し、合理的では
ない。However, Japanese Patent Application Laid-Open Nos. Hei 10-318393 and Hei 10-318396 describe the above.
In the air valve with a repair valve having the plate-shaped valve body slidable in the horizontal direction shown in Japanese Patent Application Laid-Open Publication No. H11-129, a large installation space for the repair valve is required, and a large pit is practically required. And costly and not reasonable.
【０００８】また、前記の特開平１０ー２９９９２７号
公報に示された空気弁では、前記のように弁箱を回動さ
せながら押し付けるため、シール材としてゴムシールを
用いた場合には、ゴムシールが円滑に摺動せず、また、
押し付け具合の調節も容易とは言えず、負荷がかかりす
ぎれば、シール寿命も短くなる。一方、メタルシールを
用いるとゴムシールよりもシール性が劣る。その結果、
前記流体流路の遮断が不十分となり、完全に止水ができ
ない。In the air valve disclosed in Japanese Patent Application Laid-Open No. 10-299927, since the valve box is pressed while being rotated as described above, when a rubber seal is used as a seal material, the rubber seal is smooth. Does not slide on
Adjusting the degree of pressing is not easy, and if too much load is applied, the life of the seal is shortened. On the other hand, when a metal seal is used, the sealing property is inferior to that of a rubber seal. as a result,
Blockage of the fluid flow path becomes insufficient, and water cannot be completely stopped.
【０００９】そこで、この発明の課題は、急速空気弁と
して所要の排気量を満足し、空気弁の補修時に完全止水
ができ、据え付けスペースが少なくて済むコンパクトな
補修弁内蔵型空気弁を提供することである。It is an object of the present invention to provide a compact air valve with a built-in repair valve which satisfies a required displacement as a quick air valve, can completely stop water when repairing the air valve, and requires less installation space. It is to be.
【００１０】[0010]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明では以下の構成を採用したのである。In order to solve the above-mentioned problems, the present invention employs the following constitution.
【００１１】即ち、弁箱の内部に設けた弁室に前記弁箱
下部の管路接続口に連通した連通口を設け、前記弁室上
部に空気弁孔を設け、前記弁室内に収納した上下動自在
のフロート弁により前記空気弁孔を開閉するようにした
空気弁において、前記管路接続口と弁室下部との間に補
修弁収納部を設け、該補修弁収納部に補修弁体を上下動
自在に収納し、前記補修弁収納部上端と上記弁室下面と
の間に前記連通口に連通した流路入口を設け、前記補修
弁体を所要の駆動装置により駆動することにより前記流
路入口を開閉するようにしたのである。That is, a communication port is provided in the valve chamber provided inside the valve box, the communication port communicating with the conduit connection port at the lower part of the valve box, an air valve hole is provided in the upper part of the valve chamber, In the air valve configured to open and close the air valve hole by a movable float valve, a repair valve housing is provided between the pipe connection port and a lower portion of the valve chamber, and a repair valve body is provided in the repair valve housing. The repair valve body is housed movably up and down, and a flow path inlet communicating with the communication port is provided between the upper end of the repair valve housing portion and the lower surface of the valve chamber. The entrance was opened and closed.
【００１２】上記の構成により、補修弁体は上方に移動
して前記流路入口を閉じるため作動が確実で作動不良や
振動を生じにくく、補修時に完全に止水ができる。ま
た、空気弁全体の高さをより低くでき、水道管路の地下
浅層埋設にも対応可能であり、据付けに要するスペース
も少なくて済む。With the above structure, the repair valve body moves upward to close the inlet of the flow passage, so that the operation is reliable, operation failure and vibration hardly occur, and water can be completely stopped at the time of repair. In addition, the height of the entire air valve can be reduced, and it is possible to cope with a shallow underground burial of a water pipe, which requires less space for installation.
【００１３】前記連通口が弁室下部に設けられた小連通
口と弁室上部に設けられた大連通口からなり、前記のフ
ロート弁が遊動弁体とその下部のスカート内に収納され
たフロートからなり、前記の遊動弁体が前記の空気弁孔
を開閉すべくその下方に配置され、該遊動弁体に前記フ
ロートにより開閉される小空気弁孔が設けられ、前記小
連通口と大連通口が前記の流路入口に通じた流路に連通
されたことが望ましい。The communication port comprises a small communication port provided at a lower portion of the valve chamber and a dalian communication port provided at an upper portion of the valve chamber, wherein the float valve is accommodated in a floating valve body and a skirt at a lower portion thereof. The floating valve body is disposed below the air valve hole to open and close the air valve hole, and the floating valve body is provided with a small air valve hole opened and closed by the float, and the small communication port and the large communication It is desirable that the mouth be communicated with a flow path that leads to the flow path inlet.
【００１４】上記の構成により、管路内に初めて通水す
るときに多量に存在する空気は、前記の流路入口から大
連通口を経て前記弁室上部の空気弁孔から排出されるた
め、急速排気が可能である。また、定常時には前記遊動
弁体は前記弁室上部の空気弁孔を閉じているため、管路
内の水流から分離した空気は前記フロートの作用によ
り、前記の流路入口から前記小連通口を経て前記小空気
弁孔から排気される。このように急速排気が可能な空気
弁についても、前述のように、補修時には、前記補修弁
体は前記の流路入口を閉じるため、完全止水が可能であ
り、地下浅層埋設にも対応可能で、据付けに要するスペ
ースも少なくて済む。According to the above configuration, a large amount of air that flows when water is first passed through the pipe is discharged from the air valve hole above the valve chamber through the Dalian communication port from the flow path inlet. Rapid evacuation is possible. In addition, since the floating valve element closes the air valve hole in the upper part of the valve chamber during a steady state, the air separated from the water flow in the pipeline passes the small communication port from the flow path inlet by the action of the float. After that, the air is exhausted from the small air valve hole. As described above, since the repair valve body closes the flow path entrance during repair, the water valve capable of rapid exhaust can be completely shut off as described above. Possible and requires less installation space.
【００１５】前記流路入口を形成する前記弁室下面に前
記補修弁体に対向した弁座を設けることが望ましい。It is preferable that a valve seat facing the repair valve is provided on the lower surface of the valve chamber forming the flow path inlet.
【００１６】上記の構成により、前記補修弁体は前記弁
座に確実に押し付けられるため、完全に止水が可能であ
る。According to the above configuration, since the repair valve body is securely pressed against the valve seat, it is possible to completely stop water.
【００１７】前記の流路入口が前記弁室下部の全周にわ
たり環状に形成され、前記の補修弁体が筒状に形成され
ることが望ましい。It is preferable that the flow passage inlet is formed in a ring shape over the entire periphery of the lower part of the valve chamber, and the repair valve body is formed in a cylindrical shape.
【００１８】上記の構成により、前記の流路入口が周方
向に一様に形成されているため、前記流路入口を通過す
る流体の流れに偏りを生じることがなく、また、前述の
ように作動不良や振動を生じにくいため、前記管路内の
空気の急速排気が支障なく行われる。また、補修弁体は
筒状に形成されているため、前記流路入口を完全に閉じ
ることができる。さらに、軸対象形状であるため、作動
や前記管路内の水圧の作用に対して、歪みや曲がりなど
の変形が生じにくい。According to the above configuration, since the flow passage inlet is formed uniformly in the circumferential direction, the flow of the fluid passing through the flow passage inlet is not biased. Since the operation failure and the vibration hardly occur, the rapid exhaust of the air in the pipeline is performed without any trouble. Further, since the repair valve body is formed in a tubular shape, the inlet of the flow passage can be completely closed. Further, since the shape is symmetrical with the axis, deformation such as distortion or bending is less likely to occur with respect to the operation or the action of the water pressure in the pipeline.
【００１９】前記駆動装置が、前記補修弁収納部の内側
面と補修弁体外側面との間に形成された圧力室と、前記
圧力室を上下に仕切るべく前記補修弁体の外側面に設け
た突縁部と、前記上下の圧力室に接続され、そのいずれ
か一方に所要の水圧を供給するとともに他方を大気に開
放する切替え弁により構成されることが望ましい。The driving device is provided on a pressure chamber formed between an inner surface of the repair valve housing and an outer surface of the repair valve body, and an outer surface of the repair valve body to partition the pressure chamber up and down. It is desirable that the protruding portion and a switching valve connected to the upper and lower pressure chambers to supply a required water pressure to one of them and open the other to the atmosphere are provided.
【００２０】上記の構成により、前記切替え弁の操作を
ピット外で行うようにすれば、ピットの蓋を開けること
なく補修弁体を駆動して前記流路入口を開閉でき、ま
た、切替装置を電動式又は空気圧式とすれば、遠隔操作
も可能であり、止水が極めて容易である。According to the above configuration, if the switching valve is operated outside the pit, the repair valve can be driven to open and close the flow passage inlet without opening the pit lid. If it is an electric type or a pneumatic type, remote operation is also possible, and water stoppage is extremely easy.
【００２１】前記圧力が前記弁箱の管路接続口から取出
された水圧であることが望ましい。It is preferable that the pressure is a water pressure taken out from a pipe connection port of the valve box.
【００２２】上記の構成により、圧力室への水圧の供給
が容易になり、駆動装置が簡単なもので済む。According to the above configuration, the supply of the water pressure to the pressure chamber is facilitated, and the driving device can be simplified.
【００２３】前記駆動装置が、前記補修弁体の外側面に
上下方向に設けたラックと、前記ラックにかみ合うピニ
オンと、前記ピニオンの駆動手段により構成されること
が望ましい。It is desirable that the driving device is constituted by a rack provided on an outer surface of the repair valve body in a vertical direction, a pinion meshing with the rack, and a driving means of the pinion.
【００２４】前記補修弁内蔵型空気弁は地下浅層埋設が
可能なため、操作工具を用いて前記ピニオンの支軸を回
転させれば、ピット内に入らなくても前記補修弁体を確
実に駆動して前記流路入口を開閉でき、止水が容易であ
る。Since the air valve having the built-in repair valve can be buried in a shallow underground layer, if the support shaft of the pinion is rotated using an operating tool, the repair valve body can be securely inserted without entering the pit. It can be driven to open and close the flow path inlet, making it easy to stop water.
【００２５】前記駆動装置が、前記補修弁体の外側面に
突設され前記弁箱外部に突き出した駆動アームと、前記
駆動アームの回り止め手段と、前記駆動アームとねじ結
合されこれを上下動させる駆動手段により構成されるこ
とが望ましい。A drive arm protruding from an outer surface of the repair valve body and protruding outside the valve box; a rotation-stopping means for the drive arm; It is desirable to be constituted by a driving means for driving.
【００２６】前述と同様に、操作工具を用いて前記支軸
を回転させれば、ピット内に入らなくても補修弁体を確
実に駆動して前記流路入口を開閉でき、止水が容易であ
る。As described above, if the support shaft is rotated by using an operating tool, the repair valve can be reliably driven to open and close the flow passage inlet without entering the pit, and water can be easily stopped. It is.
【００２７】前記駆動装置が、前記補修弁体に設けた傾
斜したカム溝と、前記補修弁体の回り止め手段と、前記
カム溝に挿入され前記弁箱外部に突き出した揺動レバー
と、前記揺動レバーを水平方向に揺動させる駆動手段に
より構成されることが望ましい。The drive device includes an inclined cam groove provided in the repair valve body, a rotation preventing means for the repair valve body, a swing lever inserted into the cam groove and protruding outside the valve box; It is desirable that the driving mechanism be configured to drive the swing lever horizontally.
【００２８】揺動レバーを単に揺動するだけで補修弁体
を確実に駆動して前記流路入口を開閉でき、止水操作が
極めて容易である。By simply swinging the swing lever, the repair valve body can be reliably driven to open and close the flow passage inlet, and the water stopping operation is extremely easy.
【００２９】[0029]
【発明の実施の形態】この発明の実施の形態を添付の図
１から図５に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
【００３０】図１はこの発明の第１の実施形態を示した
ものであり、弁箱１の内部に設けた有底円筒形状の案内
部材２の内部に弁室３が形成され、前記案内部材２に弁
箱１の下部の管路接続口４に連通した大連通口５とその
下方に小連通口６が設けられ、弁室３の上部には環状の
スペーサ７がガスケット８を介して弁箱１に取付けられ
ている。前記スペーサ７に蓋９がその中央部に設けた空
気弁孔１０の周縁部を前記スペーサ７の内周面に嵌め込
んで取付けられ、前記周縁部の下端にはゴム弁座１１が
設けられ、前記スペーサ７の内周面にはシールパッキン
１２が装着されている。蓋９の上部には保護カバー１３
が設けられている。FIG. 1 shows a first embodiment of the present invention, in which a valve chamber 3 is formed inside a bottomed cylindrical guide member 2 provided inside a valve box 1. 2 is provided with a Dalian communication port 5 communicating with a pipe connection port 4 at a lower part of the valve box 1 and a small communication port 6 below the Dalian communication port 5. An annular spacer 7 is provided above the valve chamber 3 via a gasket 8. It is attached to box 1. A lid 9 is attached to the spacer 7 by fitting a peripheral portion of an air valve hole 10 provided at a central portion thereof to an inner peripheral surface of the spacer 7, and a rubber valve seat 11 is provided at a lower end of the peripheral portion. A seal packing 12 is mounted on the inner peripheral surface of the spacer 7. A protective cover 13 is provided on the top of the lid 9.
Is provided.
【００３１】弁室３には前記の空気弁孔１０を開閉すべ
く遊動弁体１４とその下部のスカート部１５内にフロー
ト１６が収容され、遊動弁体１４とフロート１６はフロ
ート弁１７を構成している。遊動弁体１４には小空気弁
孔１８を有するゴム弁座１９が設けられ、前記ゴム弁座
１９は中央に通気孔２０を有するねじ部材２１により固
定されている。In the valve chamber 3, a floating valve body 14 and a float 16 are accommodated in a skirt portion 15 thereunder to open and close the air valve hole 10, and the floating valve body 14 and the float 16 constitute a float valve 17. are doing. The floating valve element 14 is provided with a rubber valve seat 19 having a small air valve hole 18, and the rubber valve seat 19 is fixed by a screw member 21 having a vent hole 20 in the center.
【００３２】なお、水道管路の新設時や断水後などに初
めて通水するときには、前記フロート弁１７は自重によ
り弁室３の下端まで下降している。When water is supplied for the first time, for example, when a new water pipe is installed or after water is cut off, the float valve 17 is lowered to the lower end of the valve chamber 3 by its own weight.
【００３３】前記案内部材２の下端と管路接続口４の間
の弁箱１の部分には補修弁収納部２２が設けられ、補修
弁収納部２２には、筒状の補修弁体２３が収納され、こ
の補修弁収納部２２と補修弁体２３との間隙を閉塞する
ためのシールリング２４が装着されている。シールリン
グ２４と案内部材２の下面との間に全周にわたり環状の
流路入口２５が形成されて、案内部材２の下部の小連通
口６の内側には弁座２６が形成されている。前記補修弁
体２３は補修弁収納部２２の内部に上下動自在に収納さ
れており、補修弁体２３の外周には突縁部２７が形成さ
れている。補修弁体２３の上端にはシールパッキン２８
ａが、補修弁体２３の突縁部２７の外周面にはシールパ
ッキン２８ｂが、補修弁体２３の下部外周面にはシール
パッキン２８ｃがそれぞれ装着されている。シールリン
グ２４の内周面にはシールパッキン２８ｄが装着されて
いる。A repair valve housing portion 22 is provided in a portion of the valve box 1 between the lower end of the guide member 2 and the pipeline connection port 4, and a cylindrical repair valve body 23 is provided in the repair valve housing portion 22. A seal ring 24 for closing the gap between the repair valve housing portion 22 and the repair valve body 23 is mounted. An annular channel inlet 25 is formed over the entire circumference between the seal ring 24 and the lower surface of the guide member 2, and a valve seat 26 is formed inside the small communication port 6 below the guide member 2. The repair valve body 23 is housed in the repair valve housing part 22 so as to be vertically movable, and a protruding edge 27 is formed on the outer periphery of the repair valve body 23. A seal packing 28 is provided on the upper end of the repair valve body 23.
a, a seal packing 28b is mounted on the outer peripheral surface of the protruding edge portion 27 of the repair valve body 23, and a seal packing 28c is mounted on the lower outer peripheral surface of the repair valve body 23, respectively. A seal packing 28d is mounted on the inner peripheral surface of the seal ring 24.
【００３４】補修弁収納部２２の内側面、補修弁体２３
の外側面、前記シールリング２４及び補修弁収納部２２
の下部に設けた段差部２９により圧力室３０が形成さ
れ、この圧力室３０は前記突縁部２７により上部圧力室
３０ａと下部圧力室３０ｂ（図２参照）に仕切られてい
る。圧力室３０の上部圧力室３０ａ及び下部圧力室３０
ｂに連通した配管３１ａ、３１ｂがそれぞれ４ポートの
切替え弁３２にポート３３ａ、３３ｂで接続され、前記
管路接続口４に連通された配管３１ｃが前記４ポートの
切替え弁３２にポート３３ｃで接続され、大気に開放さ
れた配管３１ｄがポート３３ｄで接続されている。この
ように圧力室３０、圧力室３０を上下に仕切る前記突縁
部２７、切替え弁３２、及び前記の配管系統により補修
弁体２３の駆動装置が構成されている。The inner surface of the repair valve housing 22 and the repair valve body 23
Outer surface of the seal ring 24 and the repair valve housing portion 22
A pressure chamber 30 is formed by a stepped portion 29 provided at a lower portion of the pressure chamber 30. The pressure chamber 30 is partitioned by the projection 27 into an upper pressure chamber 30a and a lower pressure chamber 30b (see FIG. 2). Upper pressure chamber 30a and lower pressure chamber 30 of pressure chamber 30
The pipes 31a and 31b connected to b are connected to the four-port switching valve 32 at ports 33a and 33b, respectively, and the pipe 31c connected to the pipeline connection port 4 is connected to the four-port switching valve 32 at port 33c. The pipe 31d opened to the atmosphere is connected to the port 33d. As described above, the driving device of the repair valve body 23 is configured by the pressure chamber 30, the protruding edge portion 27 that partitions the pressure chamber 30 up and down, the switching valve 32, and the piping system.
【００３５】なお、前記切替え弁３２は手動方式、電気
や空気圧を利用した自動式のいずれをも用いることがで
きる。The switching valve 32 may be of a manual type or an automatic type using electricity or air pressure.
【００３６】上記駆動装置において、切替え弁３２の手
動又は自動操作により、通常時は、ポート３３ａとポー
ト３３ｃが通じるとともに、ポート３３ｂとポート３３
ｄが通じており、上部圧力室３０ａには水道管路３４の
水圧が導入され、下部圧力室３０ｂは大気に開放されて
いるので、前記水圧により補修弁体２３は駆動され補修
弁体収納部２２の下端の位置まで下降している。このと
き、前記流路入口２５は開かれた状態にある。In the above driving device, the port 33a and the port 33c are normally connected and the port 33b and the port 33c are normally operated by the manual or automatic operation of the switching valve 32.
d, the water pressure of the water pipe 34 is introduced into the upper pressure chamber 30a, and the lower pressure chamber 30b is open to the atmosphere. 22 to the position of the lower end. At this time, the channel inlet 25 is in an open state.
【００３７】この状態において、流路入口２５から案内
部材２の外側を通り大連通口５を経て弁室３の上部の空
気弁孔１０へ至る排気流路が形成されるため、水道管路
３４の新設時や断水後などに初めて通水するときに水道
管路３４内に多量に存在する空気を急速に排気すること
ができる。In this state, an exhaust passage is formed from the passage inlet 25 through the outside of the guide member 2 to the air valve hole 10 in the upper part of the valve chamber 3 through the Dalian passage 5, so that the water pipe 34 A large amount of air existing in the water pipe line 34 can be quickly exhausted when water is first passed after a new installation or after the water supply is cut off.
【００３８】前記管路内の空気の排気に伴い、図３
（ａ）に示すように、前記フロート弁１７は弁室２に流
入した水により上昇し、遊動弁体１４が弁室３の上部の
空気弁孔１０を閉じる。この状態において、流路入口２
５から小連通口６を経て弁室３に空気が流入すると弁室
３の水位が下がり、フロート１６が下降して小空気弁孔
１８を開く。これにより、前記流路入口２５から小空気
弁孔１８に至る排気流路が形成されるため、水道管路３
４内の空気が外部に排気される。As the air in the pipeline is exhausted, FIG.
As shown in (a), the float valve 17 rises due to the water flowing into the valve chamber 2, and the floating valve element 14 closes the air valve hole 10 in the upper part of the valve chamber 3. In this state, the flow path inlet 2
When air flows into the valve chamber 3 from 5 through the small communication port 6, the water level of the valve chamber 3 drops, and the float 16 descends to open the small air valve hole 18. As a result, an exhaust passage extending from the passage inlet 25 to the small air valve hole 18 is formed.
The air in 4 is exhausted to the outside.
【００３９】次に、補修時には、図２に示すように、切
替え弁３２の前記操作により、ポート３２ｂと３２ｃが
通じるとともに、ポート３３ａと３２が通じ、下部圧力
室３０ｂには前記水道管路３４の水圧が導入され、上部
圧力室３０ａは大気に開放されるので、補修弁体２２は
上方へ駆動され、その上端に装着されたシールパッキン
２８ａが弁座２６に押し付けられ、流路入口２５が閉じ
る。Next, at the time of repair, as shown in FIG. 2, the operation of the switching valve 32 allows the ports 32b and 32c to be connected, the ports 33a and 32 to be connected, and the lower pressure chamber 30b to be connected to the water pipe 34. Is introduced and the upper pressure chamber 30a is opened to the atmosphere, so that the repair valve body 22 is driven upward, the seal packing 28a mounted on the upper end thereof is pressed against the valve seat 26, and the flow path inlet 25 is closed. close.
【００４０】これにより、前記水道管路３４内の水流が
流路入口２５の位置で完全に止水され、前記空気弁の補
修が可能となる。As a result, the water flow in the water pipe 34 is completely stopped at the position of the channel inlet 25, and the air valve can be repaired.
【００４１】図３（ａ）及び（ｂ）はこの発明の第２の
実施形態を示したもので、空気弁部及び補修弁部の構造
は第１の実施形態と同様であるが、前記補修弁体２３の
駆動装置において相違している。後述の第３の実施形
態、第４の実施形態についても同様である。FIGS. 3 (a) and 3 (b) show a second embodiment of the present invention. The structures of the air valve portion and the repair valve portion are the same as those of the first embodiment. The driving device for the valve body 23 is different. The same applies to a third embodiment and a fourth embodiment described later.
【００４２】この第２実施形態の補修弁体２３の外側面
には上下方向にラック３５が設けられ、これにかみ合う
ピニオン３６とピニオン３６を駆動するシャフト３７が
内周面及び外周面にシールパッキン３８、３８’を装着
したスリーブ３９に支持されて補修弁収納部２２に設け
られ、前記シャフト３７は補修弁収納部２２の外方へ延
び、その先端部に操作工具に係合する角軸部４０が設け
られている。A rack 35 is provided vertically on the outer surface of the repair valve body 23 of the second embodiment. A pinion 36 meshing with the rack 35 and a shaft 37 for driving the pinion 36 are provided with seal packing on the inner and outer peripheral surfaces. The shaft 37 extends outward of the repair valve housing 22 and is supported at the repair valve housing 22 by a sleeve 39 fitted with 38, 38 '. 40 are provided.
【００４３】上記の駆動装置において、角軸部４０に係
合した操作工具を用いて手動でシャフト３７を回転させ
ることにより補修弁体２３は上下方向に昇降する。In the above-described driving device, the repair valve 23 is moved up and down by manually rotating the shaft 37 using the operating tool engaged with the square shaft portion 40.
【００４４】図４（ａ）から図４（ｄ）に示す第３の実
施形態では、補修弁体２３の外側面に弁箱１の外部に突
き出した駆動アーム４１が設けられ、前記駆動アーム４
１は弁箱１の補修弁収納部２２に設けた案内溝４２によ
り上下方向に案内され、その先端部には雌ねじ部材４３
が取付けられ、操作軸４４の先端部に形成した雄ねじ部
４５とねじ結合している。弁箱１の外側面には支持アー
ム４６が設けられ、その先端部には操作軸４４に取付け
られたブッシュ４７と軸受部４８が設けられている。操
作軸４４は前記軸受部４８により回転自在に縦方向に支
持され一定の位置で回転が可能であり、その先端部には
操作工具に係合する角軸部４０’が設けられている。補
修弁体２３の前記駆動アーム４１の反対側には案内溝４
２’が形成され、この案内溝４２’にはピン４９が差し
込まれている。In the third embodiment shown in FIGS. 4 (a) to 4 (d), a drive arm 41 projecting out of the valve box 1 is provided on the outer surface of the repair valve body 23, and the drive arm 4 is provided.
1 is vertically guided by a guide groove 42 provided in the repair valve storage portion 22 of the valve box 1, and a female screw member 43 is provided at the tip thereof.
Is attached, and is screw-connected to a male screw portion 45 formed at the tip of the operation shaft 44. A support arm 46 is provided on the outer surface of the valve box 1, and a bush 47 attached to the operation shaft 44 and a bearing portion 48 are provided at a distal end thereof. The operating shaft 44 is rotatably supported in the vertical direction by the bearing portion 48 and can rotate at a fixed position, and a tip portion is provided with a square shaft portion 40 'that engages with the operating tool. The guide groove 4 is provided on the opposite side of the repair arm 23 from the drive arm 41.
2 'is formed, and a pin 49 is inserted into the guide groove 42'.
【００４５】上記の駆動装置において、角軸部４０’に
係合する操作工具を用いて手動で操作軸４６を回転させ
ると、前記のねじ結合により、駆動アーム４１が前記案
内溝４２により上下方向に案内されるため回ることなく
昇降し、案内溝４２、４２’により補修弁体２３が円滑
に上下に駆動される。In the above-described drive device, when the operation shaft 46 is manually rotated using the operation tool engaged with the square shaft portion 40 ', the drive arm 41 is vertically moved by the guide groove 42 by the screw connection. The repair valve body 23 is smoothly driven up and down by the guide grooves 42 and 42 '.
【００４６】図５（ａ）から図５（ｃ）に示す第４の実
施形態では、補修弁体２３の外側面に傾斜したカム溝５
０が設けられ、補修弁収納部２２に扇形のガイドボック
ス５１が設けられている。揺動レバー５２が前記ガイド
ボックス５１の下部に設けた円弧状の案内溝５３を介し
て二つのローラ５４、５４によって揺動自在に支持さ
れ、その一端がこのカム溝５０に挿入され他端がガイド
ボックス５１に形成された案内溝５２’を貫通して弁箱
１の外部に突き出している。また、補修弁体２３の揺動
レバー５２の反対側の位置には、回り止め溝が５５が設
けられ、この回り止め溝５５にピン４９’が差し込まれ
ている。In the fourth embodiment shown in FIGS. 5 (a) to 5 (c), the inclined cam groove 5 is formed on the outer surface of the repair valve body 23.
0 is provided, and a fan-shaped guide box 51 is provided in the repair valve storage section 22. A swing lever 52 is swingably supported by two rollers 54, 54 via an arc-shaped guide groove 53 provided at a lower portion of the guide box 51, one end of which is inserted into the cam groove 50 and the other end thereof. It protrudes outside the valve box 1 through a guide groove 52 ′ formed in the guide box 51. A detent groove 55 is provided at a position on the opposite side of the swing lever 52 of the repair valve body 23, and a pin 49 ′ is inserted into the detent groove 55.
【００４７】上記の駆動装置において、揺動レバー５２
を案内溝５３に沿って揺動させると、揺動レバー５２の
先端部が前記傾斜したカム溝５０に沿って一定の高さで
移動するため、補修弁体２３は回ることなく上下方向に
駆動される。In the above driving device, the swing lever 52
Is swung along the guide groove 53, the tip of the swing lever 52 moves at a constant height along the inclined cam groove 50, so that the repair valve body 23 is driven vertically without rotating. Is done.
【００４８】[0048]
【発明の効果】以上のように、この発明によれば、空気
弁の弁箱内に筒状の補修弁体を内蔵したので、補修弁体
を別個に設ける必要がなく、空気弁の全高さも低くな
り、前述のように、水圧方式又は手動方式によって補修
弁体が上下方向に駆動されて前記流路入口を開閉する構
成であるため、前記空気弁はコンパクトなものとなり、
管路への取付けに広いスペースを必要としない。As described above, according to the present invention, since the cylindrical repair valve is built in the valve box of the air valve, there is no need to provide a separate repair valve and the overall height of the air valve is reduced. As described above, since the repair valve body is driven vertically by a hydraulic or manual method to open and close the flow path inlet, the air valve becomes compact,
Does not require large space for installation in pipelines.
【００４９】また、補修弁体は、通常時は補修弁収納部
の下端の位置まで下降しているため前述の排気流路を妨
げず、管路内の多量の空気を急速に排気することができ
る。Since the repair valve body is normally lowered to the lower end position of the repair valve housing, the repair valve body does not obstruct the above-described exhaust flow path and can rapidly exhaust a large amount of air in the pipeline. it can.
【００５０】さらに、弁室下面に設けた弁座に補修弁体
が上方に駆動されて確実に押し付けられるため、完全に
止水できる。Further, since the repair valve element is driven upward and securely pressed against the valve seat provided on the lower surface of the valve chamber, the water can be completely stopped.
【図１】第１の実施形態の断面図FIG. 1 is a sectional view of a first embodiment.
【図２】同上の断面図FIG. 2 is a sectional view of the above.
【図３】（ａ）第２の実施形態の断面図 （ｂ）（ａ）図のＡーＡ線における断面図3A is a cross-sectional view of the second embodiment. FIG. 3B is a cross-sectional view taken along line AA in FIG.
【図４（ａ）】第３の実施形態の断面図FIG. 4 (a) is a sectional view of a third embodiment.
【図４（ｂ）】図４（ａ）のＡーＡ線における断面図FIG. 4 (b) is a cross-sectional view taken along line AA of FIG. 4 (a).
【図４（ｃ）】図４（ｂ）のＢーＢ線における断面図FIG. 4 (c) is a cross-sectional view taken along line BB of FIG. 4 (b).
【図４（ｄ）】図４（ｂ）における左側面図FIG. 4 (d) is a left side view in FIG. 4 (b).
【図５（ａ）】第４の実施形態の断面図FIG. 5 (a) is a sectional view of a fourth embodiment.
【図５（ｂ）】図５（ａ）のＡーＡ線における断面図FIG. 5 (b) is a cross-sectional view taken along line AA of FIG. 5 (a).
【図５（ｃ）】図５（ｂ）の一部省略右側面図FIG. 5 (c) is a partially omitted right side view of FIG. 5 (b).
１ 弁箱 ２ 案内部材 ３ 弁室 ４ 管路接続口 ５ 大連通口 ６ 小連通口 ７ スペーサ ８ ガスケット ９ 蓋 １０ 空気弁孔 １１ ゴム弁座 １２ シールパッキン １３ 保護カバー １４ 遊動弁体 １５ スカート部 １６ フロート １７ フロート弁 １８ 小空気弁孔 １９ ゴム弁座 ２０ 通気孔 ２１ ねじ部材 ２２ 補修弁収納部 ２３ 補修弁体 ２４ リング ２５ 流路入口 ２６ 弁座 ２７ 突縁部 ２８ａ、２８ｂ、２８ｃ、２８ｄ シールパッキン ２９ 段差部 ３０ 圧力室 ３０ａ 上部圧力室 ３０ｂ 下部圧力室 ３１ａ、３１ｂ、３１ｃ、３１ｄ 配管 ３２ 切替え弁 ３３ａ、３３ｂ、３３ｃ、３３ｄ ポート ３４ 水道管路 ３５ ラック ３６ ピニオン ３７ シャフト ４０、４０’ シールパッキン ３９ スリーブ ４０、４０’ 角軸部 ４１ 駆動アーム ４２、４２’ 案内溝 ４３ 雌ねじ部材 ４４ 操作軸 ４５ 雄ねじ部 ４６ 支持アーム ４７ ブッシュ ４８ 軸受部 ４９、４９’ ピン ５０ カム溝 ５１ ガイドボックス ５２ 揺動レバー ５３、５３’ 案内溝 ５４ ローラ ５５ 回り止め溝 DESCRIPTION OF SYMBOLS 1 Valve box 2 Guide member 3 Valve room 4 Pipe connection port 5 Dalian communication port 6 Small communication port 7 Spacer 8 Gasket 9 Lid 10 Air valve hole 11 Rubber valve seat 12 Seal packing 13 Protective cover 14 Floating valve body 15 Skirt part 16 Float 17 Float valve 18 Small air valve hole 19 Rubber valve seat 20 Vent hole 21 Screw member 22 Repair valve storage part 23 Repair valve body 24 Ring 25 Flow path inlet 26 Valve seat 27 Protrusion 28a, 28b, 28c, 28d Seal packing 29 Step section 30 Pressure chamber 30a Upper pressure chamber 30b Lower pressure chamber 31a, 31b, 31c, 31d Piping 32 Switching valve 33a, 33b, 33c, 33d Port 34 Water pipe 35 Rack 36 Pinion 37 Shaft 40, 40 'Seal packing 39 Sleeve 40, 40 'Square shaft 41 Drive arm 42, 42 Guide grooves 43 internally threaded member 44 the operating shaft 45 externally threaded portion 46 supporting arm 47 the bush 48 bearing part 49, 49 'the pin 50 the cam groove 51 guides box 52 swing lever 53, 53' guide groove 54 roller 55 anti-rotation groove
Claims (9)
の管路接続口に連通した連通口を設け、前記弁室上部に
空気弁孔を設け、前記弁室内に収納した上下動自在のフ
ロート弁により前記空気弁孔を開閉するようにした空気
弁において、前記管路接続口と弁室下部との間に補修弁
収納部を設け、該補修弁収納部に補修弁体を上下動自在
に収納し、前記補修弁収納部上端と上記弁室下面との間
に前記連通口に連通した流路入口を設け、前記補修弁体
を所要の駆動装置により駆動することにより前記流路入
口を開閉するようにしたことを特徴とする補修弁内蔵型
空気弁。1. A valve chamber provided inside a valve box, a communication port communicating with a pipe connection port at a lower portion of the valve box is provided, an air valve hole is provided at an upper portion of the valve chamber, and an upper and lower part accommodated in the valve chamber is provided. In the air valve configured to open and close the air valve hole by a movable float valve, a repair valve housing is provided between the pipe connection port and a lower portion of the valve chamber, and a repair valve body is provided in the repair valve housing. The repair valve body is housed movably up and down, and a flow path inlet communicating with the communication port is provided between the upper end of the repair valve housing portion and the lower surface of the valve chamber. An air valve with a built-in repair valve characterized by opening and closing the road entrance.
通口と弁室上部に設けられた大連通口からなり、前記の
フロート弁が遊動弁体とその下部のスカート内に収納さ
れたフロートからなり、前記の遊動弁体が前記の空気弁
孔を開閉すべくその下方に配置され、該遊動弁体に前記
フロートにより開閉される小空気弁孔が設けられ、前記
小連通口と大連通口が前記の流路入口に通じた流路に連
通されたことを特徴とする請求項１に記載の補修弁内蔵
型空気弁。2. The communication port comprises a small communication port provided at a lower portion of the valve chamber and a large communication port provided at an upper portion of the valve chamber, and the float valve is housed in an idle valve body and a skirt at a lower portion thereof. The floating valve body is disposed below the air valve hole so as to open and close the air valve hole, and the small air valve hole that is opened and closed by the float is provided in the floating valve body, and the small communication port is provided. The air valve with a built-in repair valve according to claim 1, wherein a Dalian communication port is communicated with a flow path communicating with the flow path inlet.
前記補修弁体に対向した弁座を設けたことを特徴とする
請求項１又は２に記載の補修弁内蔵型空気弁。3. A repair valve built-in type air valve according to claim 1, wherein a valve seat facing the repair valve body is provided on a lower surface of the valve chamber forming the flow passage inlet.
たり環状に形成され、前記の補修弁体が筒状に形成され
たことを特徴とする請求項１から３のいずれかに記載の
補修弁内蔵型空気弁。4. The repair valve body according to claim 1, wherein the flow path inlet is formed in a ring shape over the entire circumference of the lower part of the valve chamber, and the repair valve body is formed in a cylindrical shape. Air valve with built-in repair valve.
側面と補修弁体外側面との間に形成された圧力室と、前
記圧力室を上下に仕切るべく前記補修弁体の外側面に設
けた突縁部と、前記上下の圧力室のいずれか一方に所要
の圧力を供給するとともに他方を大気に開放する切替え
弁により構成されたことを特徴とする請求項１から４の
いずれかに記載の補修弁内蔵型空気弁。5. The repair device according to claim 1, wherein the driving device includes a pressure chamber formed between an inner surface of the repair valve housing and an outer surface of the repair valve body, and an outer surface of the repair valve body for vertically partitioning the pressure chamber. 5. The switch according to claim 1, further comprising: a protruding edge provided by the switch and a switching valve that supplies a required pressure to one of the upper and lower pressure chambers and opens the other to the atmosphere. Pneumatic valve with built-in repair valve as described.
出された水圧であることを特徴とする請求項５に記載の
補修弁内蔵型空気弁。6. The air valve according to claim 5, wherein the pressure is a water pressure taken out from a pipe connection port of the valve box.
に上下方向に設けたラックと、前記ラックにかみ合うピ
ニオンと、前記ピニオンの駆動手段により構成されたこ
とを特徴とする請求項１から４のいずれかに記載の補修
弁内蔵型空気弁。7. The drive device according to claim 1, wherein the drive device comprises a rack provided on an outer surface of the repair valve body in a vertical direction, a pinion that meshes with the rack, and a drive unit for the pinion. 5. The air valve with a built-in repair valve according to any one of items 1 to 4.
に突設され前記弁箱外部に突き出した駆動アームと、前
記駆動アームの回り止め手段と、前記駆動アームとねじ
結合されこれを上下動させる駆動手段により構成された
ことを特徴とする請求項１から４のいずれかに記載の補
修弁内蔵型空気弁。8. A drive arm protruding from an outer surface of the repair valve body and protruding outside the valve box, a detent means for the drive arm, and screw-connected to the drive arm. 5. The repair valve built-in type air valve according to claim 1, wherein the air valve is configured by driving means for vertically moving.
に設けた傾斜したカム溝と、前記補修弁体の回り止め手
段と、前記カム溝に挿入され前記弁箱外部に突き出した
揺動レバーと、前記揺動レバーを水平方向に揺動させる
駆動手段により構成されたことを特徴とする請求項１か
ら４のいずれかに記載の補修弁内蔵型空気弁。9. The repair device according to claim 1, wherein the drive device includes a sloped cam groove provided on an outer peripheral surface of the repair valve body, a rotation preventing means for the repair valve body, and a swinging member inserted into the cam groove and protruding outside the valve box. The repair valve built-in type air valve according to any one of claims 1 to 4, comprising a moving lever and a driving means for horizontally swinging the swing lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000033860A JP2001221355A (en) | 2000-02-10 | 2000-02-10 | Air valve with built-in repairing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000033860A JP2001221355A (en) | 2000-02-10 | 2000-02-10 | Air valve with built-in repairing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001221355A true JP2001221355A (en) | 2001-08-17 |
Family
ID=18558282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000033860A Pending JP2001221355A (en) | 2000-02-10 | 2000-02-10 | Air valve with built-in repairing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001221355A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015155749A (en) * | 2014-01-20 | 2015-08-27 | 株式会社清水合金製作所 | Flow rate control structure of air valve and repair valve |
| JP5991607B1 (en) * | 2016-02-29 | 2016-09-14 | 山川 裕朗 | Valve device with air valve |
| JP6093082B1 (en) * | 2016-08-04 | 2017-03-08 | 山川 裕朗 | Valve device |
-
2000
- 2000-02-10 JP JP2000033860A patent/JP2001221355A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015155749A (en) * | 2014-01-20 | 2015-08-27 | 株式会社清水合金製作所 | Flow rate control structure of air valve and repair valve |
| JP5991607B1 (en) * | 2016-02-29 | 2016-09-14 | 山川 裕朗 | Valve device with air valve |
| JP6093082B1 (en) * | 2016-08-04 | 2017-03-08 | 山川 裕朗 | Valve device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2001221355A (en) | Air valve with built-in repairing valve | |
| JPH10299927A (en) | Air valve | |
| KR20110125536A (en) | The bellows valve | |
| KR101848858B1 (en) | drive assembly of valve | |
| KR100954698B1 (en) | Water control valve of multiple functions with the flow water information means | |
| JP3897619B2 (en) | Automatic water supply device | |
| KR20140083576A (en) | Valve | |
| JP2714892B2 (en) | Float valve | |
| JP4547651B2 (en) | Valve device | |
| JP3365863B2 (en) | Auto drain device | |
| CN220622831U (en) | Reversing valve | |
| US5435340A (en) | Pipe coupling apparatus | |
| JPH10318395A (en) | Air valve | |
| JP2004027581A (en) | Underground hydrant | |
| CN217519245U (en) | Energy storage type hydraulic control slow-closing butterfly valve | |
| CN210510443U (en) | Angle-shaped plug valve | |
| JP2986408B2 (en) | 4-way switching valve | |
| KR100585206B1 (en) | Sluice valve with safety gasket | |
| JP4391678B2 (en) | Water drain antifreeze faucet | |
| KR100308910B1 (en) | Air valve for water service pipe | |
| KR200237464Y1 (en) | Air valve that consists of the maintenance valve as a whole | |
| JPH057610Y2 (en) | ||
| JPH0213815Y2 (en) | ||
| JPH0213813Y2 (en) | ||
| CN111219524A (en) | Pilot-operated stop valve |