JPS6159431B2 - - Google Patents
Info
- Publication number
- JPS6159431B2 JPS6159431B2 JP12575879A JP12575879A JPS6159431B2 JP S6159431 B2 JPS6159431 B2 JP S6159431B2 JP 12575879 A JP12575879 A JP 12575879A JP 12575879 A JP12575879 A JP 12575879A JP S6159431 B2 JPS6159431 B2 JP S6159431B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve chamber
- water
- float
- inlet
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 2
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Check Valves (AREA)
- Float Valves (AREA)
Description
【発明の詳細な説明】
多層の建物の給水系統等に於いて、給水ポンプ
が停止したときに逆流が起こり、湯沸器や電気温
水器内の水がサビ等と共に、あるいはトイレの水
槽に貯溜された水が投入薬剤と共に給水管を逆流
し、食器洗い場にサビを含んだ赤水や薬剤を含ん
だ青水が出てきて困まることがある。湯沸器等の
手前に逆止弁が取り付けられるが、逆止弁に完全
な逆流防止を望むことは出来ない。[Detailed description of the invention] In the water supply system of a multi-story building, backflow occurs when the water supply pump stops, causing water in the water heater or electric water heater to accumulate with rust, etc., or in the toilet water tank. The water, along with the chemicals, can back up through the water supply pipes, causing problems such as red water containing rust or blue water containing chemicals coming out into the dishwashing area. A check valve is installed in front of a water heater, etc., but it cannot be expected that the check valve will completely prevent backflow.
本発明は上記の様な不都合を解消せんとするも
ので、本発明による逆流防止形空気弁の構成は、
弁筐体で弁室と、流入口と、流出口と、排気口と
を形成し、流入口は弁室の下部に流出口は弁室の
側部に開口せしめ、弁室の上部に弁孔を開口せし
め、その弁孔を通して弁室と排気口を連通し、弁
室内にフロートを配置し、弁孔の弁室側端にフロ
ートが当接して弁孔を塞ぐ弁座を設けたものであ
る。 The present invention aims to solve the above-mentioned disadvantages, and the structure of the non-return air valve according to the present invention is as follows:
The valve housing forms a valve chamber, an inlet, an outlet, and an exhaust port, with the inlet opening at the bottom of the valve chamber, the outlet opening at the side of the valve chamber, and a valve hole at the top of the valve chamber. is opened, the valve chamber and exhaust port are communicated through the valve hole, a float is placed inside the valve chamber, and a valve seat is provided where the float abuts against the end of the valve hole on the valve chamber side and closes the valve hole. .
本発明は実施態様として、流入口をフロートが
塞ぐことを防止する部材を弁室内に設けたもの
と、流入口の弁室側端にフロートが当接して流入
口を塞ぐ逆止弁座を設けたものを含む。 As an embodiment of the present invention, a member is provided in the valve chamber to prevent the float from blocking the inlet, and a check valve seat is provided at the end of the inlet on the valve chamber side where the float abuts and blocks the inlet. including
作用を説明すると、給水ポンプで汲上げられた
水が流入口から弁室に入つてきたとき、フロート
は水面に浮いて上昇して弁座に当接して弁孔を塞
ぐ。従つて、弁室の水は流出口に流れ出る。 To explain how it works, when water pumped up by the water supply pump enters the valve chamber from the inlet, the float floats on the water surface, rises, comes into contact with the valve seat, and closes the valve hole. The water in the valve chamber therefore flows out to the outlet.
給水ポンプが停止すると弁室の水は流入口の方
に流れ落ちる。すると、フロートが弁座から離れ
て下降するので弁孔が開き、空気が弁室内に吸込
まれるので、流出口の水が流入口の方に引き込ま
れて逆流することが防止される。 When the water pump stops, the water in the valve chamber flows down toward the inlet. Then, the float moves away from the valve seat and descends, opening the valve hole and sucking air into the valve chamber, thereby preventing water from the outflow port from being drawn toward the inflow port and flowing back.
従つて、本発明の空気弁を給水系統の逆Ｕ字形
状になつた部分に取り付ければ、その逆Ｕ字形状
部分に於けるサイフオン作用による水の逆流が空
気の導入によつて確実に破壊される。 Therefore, if the air valve of the present invention is attached to an inverted U-shaped portion of a water supply system, the backflow of water due to the siphon action in the inverted U-shaped portion will be reliably destroyed by the introduction of air. Ru.
第１図に於いて、本体１に気密保持用のガスケ
ツト２を介して蓋３がユニオンナツト状部材４で
取り付けられて弁筐体が構成されている。弁筐体
内には縦長のほぼ円柱状空間の弁室５が形成され
ている。弁室５の底部には流入口６が開口し、弁
室５の下部側壁には流出口７が開口している。弁
室５の天井には気密保持用のガスケツト８を介し
て弁座部材９が螺着され、排気口１０に連通する
弁孔１１が弁室５の上部に開口している。弁孔１
１の弁室５側端を成す弁口は合成ゴム製の弁座１
２で形成されている。弁室５内には複数のリブ１
３にフロートケージ１４がスナツプリング１５で
取り付けられている。ケージ１４と弁室５内壁の
間には流体が通過できる空間が形成されている。
ケージ１４には上端開口から球形のフロート１７
が配されている。ケージ１４の底壁には小孔１６
が形成され、流入通路６からの気体流でフロート
１６が吹き上げられることなく、かつ水が流入し
てきたら遅れることなく浮上するようになつてい
る。 In FIG. 1, a valve housing is constructed by attaching a lid 3 to a main body 1 with a union nut-like member 4 via a gasket 2 for airtightness. A vertically long, substantially cylindrical valve chamber 5 is formed within the valve housing. An inlet 6 is opened at the bottom of the valve chamber 5, and an outlet 7 is opened at the lower side wall of the valve chamber 5. A valve seat member 9 is screwed onto the ceiling of the valve chamber 5 via an airtight gasket 8, and a valve hole 11 communicating with an exhaust port 10 opens at the upper part of the valve chamber 5. Valve hole 1
The valve port forming the side end of the valve chamber 5 of 1 is a valve seat 1 made of synthetic rubber.
It is formed by 2. A plurality of ribs 1 are provided in the valve chamber 5.
A float cage 14 is attached to 3 with a snap spring 15. A space through which fluid can pass is formed between the cage 14 and the inner wall of the valve chamber 5.
A spherical float 17 is inserted into the cage 14 from the upper opening.
are arranged. A small hole 16 is provided in the bottom wall of the cage 14.
is formed so that the float 16 is not blown up by the gas flow from the inflow passage 6 and floats up without delay when water flows in.
第２図は本発明による空気弁の使用例を示す給
水系統の概略図である。水源の水は給水ポンプ１
８で揚水され、立ち上がり本管１９を通つて建物
の高層階へ送られ、横配管２０′，２０，２０″で
各階へ送られる。第１図の如き本発明による空気
弁２１は、横配管２０からの立ち上がり分岐管２
２が流入口６に連結され、流出口７からは水平及
び立ち下がりの引き込み管２３を通して、例えば
水槽２４に連結される。水槽２４の代わりに湯沸
器、電気温水器、トイレの水槽等が連結されるこ
ともある。 FIG. 2 is a schematic diagram of a water supply system showing an example of the use of the air valve according to the present invention. The water source is water supply pump 1
8, and is sent to the upper floors of the building through a rising main pipe 19, and is sent to each floor through horizontal pipes 20', 20, and 20''.The air valve 21 according to the present invention as shown in FIG. Rising branch pipe 2 from 20
2 is connected to the inlet 6, and the outlet 7 is connected to, for example, a water tank 24 through horizontal and downward lead-in pipes 23. Instead of the water tank 24, a water heater, an electric water heater, a toilet water tank, etc. may be connected.
この様な取り付け配管に於いて、給水管系統に
水が無いとき、空気弁２１は第１図の如く弁室５
内は空で、フロート１７はケージ１４の底に降下
しており、弁孔１１は開弁状態にある。ここで給
水ポンプ１８を駆動して揚水を行うと、給水管系
統内の空気は空気弁２１の弁孔１１を通つて外部
へ排出される。そして水が流入通路６から弁室５
内に進入してくると、フロート１７は水と共に浮
上し、球面の外表面が弁座１２に着座して弁孔１
１を完全に閉塞する。従つて流入口６から弁室５
に入つた水は流出口７に向い引き込み管２３から
水槽２４に給水される。次に給水ポンプ１８が停
止すると本管１９内に下降流が起こり横配管２
０′，２０，２０″の水が本管１９側へ引き戻され
る。このとき空気弁２１の弁室５内の水は流入通
路６側へ逆流し、弁室５内の圧力は降下するから
フロート１７は弁座１２から離れて弁孔１１を開
き、排気口１０側の空気は弁孔１１を通つて弁室
５内に引き込まれる。従つて、水槽２４の水が引
き込み通路２３を通つて流出口７へ逆流すること
はない。 In such installation piping, when there is no water in the water supply pipe system, the air valve 21 is connected to the valve chamber 5 as shown in FIG.
The inside is empty, the float 17 has descended to the bottom of the cage 14, and the valve hole 11 is in an open state. When the water supply pump 18 is driven to pump water, the air within the water supply pipe system is discharged to the outside through the valve hole 11 of the air valve 21. Then, water flows from the inflow passage 6 to the valve chamber 5.
When the float 17 enters the inside, the float 17 rises together with the water, and the spherical outer surface seats on the valve seat 12 and closes the valve hole 1.
1 completely occluded. Therefore, from the inlet 6 to the valve chamber 5
The water that has entered is directed toward the outlet 7 and is supplied to the water tank 24 from the lead-in pipe 23. Next, when the water supply pump 18 stops, a downward flow occurs in the main pipe 19 and the horizontal pipe 2
0', 20, 20'' water is drawn back to the main pipe 19 side. At this time, the water in the valve chamber 5 of the air valve 21 flows back to the inflow passage 6 side, and the pressure in the valve chamber 5 decreases, so the float 17 separates from the valve seat 12 and opens the valve hole 11, and the air on the exhaust port 10 side is drawn into the valve chamber 5 through the valve hole 11. Therefore, water in the water tank 24 flows through the drawing passage 23. There is no backflow to outlet 7.
第３図に示すものに於いて、本体２５に蓋２６
を気密的に螺着して弁筐体が形成される。弁筐体
で縦長のほぼ円柱状空間の弁室２７が形成され
る。流入口２８は弁室２７の底部に開口し、その
開口端には合成ゴム製の環状の逆止弁座２９が固
着されている。本体２５の側壁には流出口３０が
開口している。弁室２７内には多円筒部材３１に
案内されて球形のフロート３２が収容されてい
る。弁室２７の天井には弁室２７の上部を排気口
３３に連通する弁孔３４を形成する合成ゴム製の
弁座３５が固着されている。この空気弁３６は第
１図に示した空気弁２１と同様の動作をするが、
それは上記説明に明らかであるから省略する。第
３図にはフロート３２が弁座３５に着座して弁孔
３４を閉塞しており、流入口２８から弁室２７に
入つた水が流出口３０へ流れている状態が示され
ている。ここで弁室２７内の水が流入口２８側へ
引き戻されて弁室２７内の圧力が低下すると、フ
ロート３２は弁室３５から離れて弁孔３４を開く
だけではなく、降下して細線３７で示す如く逆止
弁座２９に着座することになり、上記両作用によ
つて流出口３０側の水が流入口２８側へ逆流する
ことを確実に防止する。 In the case shown in FIG. 3, a lid 26 is attached to the main body 25.
are screwed together airtight to form a valve housing. The valve chamber 27 is a vertically elongated, substantially cylindrical space. The inlet 28 opens at the bottom of the valve chamber 27, and an annular check valve seat 29 made of synthetic rubber is fixed to the open end. An outlet 30 is opened in the side wall of the main body 25. A spherical float 32 is accommodated in the valve chamber 27 and guided by a multi-cylindrical member 31 . A synthetic rubber valve seat 35 is fixed to the ceiling of the valve chamber 27 and forms a valve hole 34 that communicates the upper part of the valve chamber 27 with the exhaust port 33 . This air valve 36 operates in the same way as the air valve 21 shown in FIG.
Since it is clear from the above explanation, it will be omitted. FIG. 3 shows a state in which the float 32 is seated on the valve seat 35 and closes the valve hole 34, and water entering the valve chamber 27 from the inlet 28 is flowing to the outlet 30. When the water in the valve chamber 27 is drawn back toward the inlet 28 and the pressure in the valve chamber 27 decreases, the float 32 not only moves away from the valve chamber 35 and opens the valve hole 34, but also descends and closes the thin wire 37. The check valve seat 29 is seated on the check valve seat 29 as shown in FIG.
第１図と第３図は本発明の実施例の空気弁の断
面図であり、第２図は本発明による空気弁の使用
例を示す給水配管系統の概略図である。
５：弁座、６：流入口、７：流出口、１０：排
気口、１１：弁孔、１７：フロート、１８：給水
ポンプ、２１：空気弁、２４：水槽、２７：弁
室、２８：流入口、２９：逆止弁座、３０：流出
口、３２：フロート、３３：排気口、３４：弁
孔、３６：空気弁。
1 and 3 are cross-sectional views of an air valve according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a water supply piping system showing an example of use of the air valve according to the present invention. 5: Valve seat, 6: Inlet, 7: Outlet, 10: Exhaust port, 11: Valve hole, 17: Float, 18: Water pump, 21: Air valve, 24: Water tank, 27: Valve chamber, 28: Inflow port, 29: Check valve seat, 30: Outflow port, 32: Float, 33: Exhaust port, 34: Valve hole, 36: Air valve.
Claims (1)
口とを形成し、流入口は弁室の下部に流出口は弁
室の側部に開口せしめ、弁室の上部に弁孔を開口
せしめ、その弁孔を通して弁室と排気口を連通
し、弁室内に水位と共に浮上降下するフロートを
配置し、弁孔の弁室側端にフロートが当接して弁
孔を塞ぐ弁座を設けた逆流防止形空気弁。 ２ 流入口をフロートが塞ぐことを防止する部材
を弁室内に設けた特許請求の範囲第１項記載の逆
流防止形空気弁。 ３ 流入口の弁室側端にフロートが当接して流入
口を塞ぐ逆止弁座を設けた特許請求の範囲第１項
記載の逆流防止形空気弁。[Scope of Claims] 1. A valve chamber, an inflow port, an outflow port, and an exhaust port are formed in the valve casing, and the inflow port is opened at the bottom of the valve chamber and the outflow port is opened at the side of the valve chamber, A valve hole is opened in the upper part of the valve chamber, the valve chamber and the exhaust port are communicated through the valve hole, a float is placed inside the valve chamber that rises and falls with the water level, and the float is brought into contact with the end of the valve hole on the valve chamber side. A backflow prevention air valve with a valve seat that blocks the valve hole. 2. A backflow prevention type air valve according to claim 1, wherein a member is provided in the valve chamber to prevent the float from blocking the inlet. 3. The non-return air valve according to claim 1, further comprising a check valve seat that is provided with a float that abuts against the end of the inlet on the valve chamber side to block the inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12575879A JPS5649466A (en) | 1979-09-28 | 1979-09-28 | Nonreturn air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12575879A JPS5649466A (en) | 1979-09-28 | 1979-09-28 | Nonreturn air valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5649466A JPS5649466A (en) | 1981-05-06 |
| JPS6159431B2 true JPS6159431B2 (en) | 1986-12-16 |
Family
ID=14918081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12575879A Granted JPS5649466A (en) | 1979-09-28 | 1979-09-28 | Nonreturn air valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5649466A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972265A (en) * | 2016-06-22 | 2016-09-28 | 浙江胜华波电器股份有限公司 | Automatic venting type universal water shut-off valve |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58116631U (en) * | 1982-01-09 | 1983-08-09 | 東急車輌製造株式会社 | Flow meter idling prevention device |
| JPS58127264U (en) * | 1982-02-23 | 1983-08-29 | 松下冷機株式会社 | Check valve for refrigeration equipment |
| JPS61170778U (en) * | 1985-04-12 | 1986-10-23 | ||
| JP2916733B2 (en) * | 1992-12-16 | 1999-07-05 | 株式会社テイエルブイ | Check valve for liquid |
| JP4906215B2 (en) * | 2000-04-28 | 2012-03-28 | 株式会社横田製作所 | Valve device and pipeline system |
| US7469551B2 (en) * | 2005-01-18 | 2008-12-30 | Isothermal Systems Research, Inc. | Globally cooled computer system |
| JP4859017B2 (en) * | 2005-03-28 | 2012-01-18 | 愛知時計電機株式会社 | Water meter system |
| JP2008128508A (en) * | 2006-11-17 | 2008-06-05 | Toshiba Electric Appliance Co Ltd | Hot water supply system |
| JP2009126086A (en) * | 2007-11-26 | 2009-06-11 | Canon Inc | Fluid ejecting apparatus and recording head |
| CN102606794A (en) * | 2012-02-29 | 2012-07-25 | 山东圣威新能源有限公司 | Novel automatic exhaust valve for heating process systems |
| KR101504453B1 (en) * | 2014-02-20 | 2015-03-19 | 방병훈 | Backflow prevention system |
| CN104015892A (en) * | 2014-06-03 | 2014-09-03 | 中国海洋石油总公司 | Stabilization water chamber and air valve drainage pipe of stabilization water chamber |
| EP3565991A1 (en) * | 2017-01-06 | 2019-11-13 | Hebmüller SRS Technik GmbH | Valve arrangement |
-
1979
- 1979-09-28 JP JP12575879A patent/JPS5649466A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972265A (en) * | 2016-06-22 | 2016-09-28 | 浙江胜华波电器股份有限公司 | Automatic venting type universal water shut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5649466A (en) | 1981-05-06 |
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