JP2000088123A - Check valve structure - Google Patents

Check valve structure

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Publication number
JP2000088123A
JP2000088123A JP10279458A JP27945898A JP2000088123A JP 2000088123 A JP2000088123 A JP 2000088123A JP 10279458 A JP10279458 A JP 10279458A JP 27945898 A JP27945898 A JP 27945898A JP 2000088123 A JP2000088123 A JP 2000088123A
Authority
JP
Japan
Prior art keywords
valve
case
water
check valve
check
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
Application number
JP10279458A
Other languages
Japanese (ja)
Other versions
JP3486766B2 (en
Inventor
Shunji Masuo
俊二 増尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inax Corp
Original Assignee
Inax Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inax Corp filed Critical Inax Corp
Priority to JP27945898A priority Critical patent/JP3486766B2/en
Publication of JP2000088123A publication Critical patent/JP2000088123A/en
Application granted granted Critical
Publication of JP3486766B2 publication Critical patent/JP3486766B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Check Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To display an excellent check function, even if pressure of back flow water is slight by forming a valve element arranged so as to be movable within a case into a reverse umbrella shape that an outer periphery is sprung up in a thin shape by a soft material such as rubber and forming a projection projecting upward at the center part. SOLUTION: In a check valve 56 having a valve case 72 communicated with a water discharge path 71 of a longitudinal direction, an opening leg 74 is stood on a bottom side of the valve case 72 and flow of water is allowed by abutting a valve element 1 on the opening leg 74 when water is flowed down from an upper side to a lower side. As for back flow water back flow is prevented by closely adhering the valve element 1 to a ceiling part 72a. In this case, the valve element 1 is formed by a soft part 2 made of a soft material such as rubber curved upward and is formed at a tip thin part 2a on the outer peripheral side. A conical center projection 3 rising to an upper side is integrally formed at a center of the soft part 2, a hollow buoyancy body is installed at a lower surface center part of the soft part 2 and check performance is improved.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、逆止弁の構造に関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a check valve structure.

【0002】[0002]

【従来の技術及びその課題】例えば図8に示すように、
浴槽51の側壁面に循環金具52を取り付けて、これに
追焚き装置54の追焚き配管53を接続し、接続部から
の漏水を受けるために水受け55を設けて、この水受け
55で集めた水を排水トラップへ排水する排水管内に設
けられた逆止弁56とか、また、図9に示すような洗面
台61において、洗面器62からの排水を流す排水管6
3内に設けられた逆止弁56のように、縦方向に水が流
れる水路内に設けられた従来の逆止弁56においては、
例えば図10及び図11に示すような平型の弁体73で
構成されたものが存在し、図10において、縦方向の排
水路71内に設けられた弁ケース72内に平型の弁体7
3が内装されて、弁ケース72の底側には開口脚74が
立設され、図10の状態では、排水路71を上方から流
下する排水は良好に下方側へ流すことができ、逆に図1
1に示すように、下から上に向かって逆流する排水に対
しては弁体73が弁ケース72の天井部72aに当接し
て逆流を防止するように構成されている。
2. Description of the Related Art For example, as shown in FIG.
A circulation fitting 52 is attached to the side wall surface of the bathtub 51, a reheating pipe 53 of a reheating apparatus 54 is connected to the circulation fitting 52, and a water receiver 55 is provided for receiving water leakage from the connection part, and collected by the water receiver 55. A check valve 56 provided in a drain pipe for draining the drained water to a drain trap, and a drain pipe 6 for draining drain water from a basin 62 in a wash basin 61 as shown in FIG.
In a conventional check valve 56 provided in a water channel in which water flows vertically, like a check valve 56 provided in
For example, there is a flat valve body 73 as shown in FIGS. 10 and 11. In FIG. 10, a flat valve body 73 is provided in a valve case 72 provided in a vertical drain 71. 7
3, and an opening leg 74 is erected on the bottom side of the valve case 72. In the state of FIG. 10, the drainage flowing down the drainage channel 71 from above can be satisfactorily flowed downward, and conversely. FIG.
As shown in FIG. 1, the valve body 73 is configured to abut against the ceiling portion 72 a of the valve case 72 to prevent backflow with respect to drainage flowing backward from the bottom upward.

【0003】しかし、このような平型の弁体73で逆止
弁56が形成されている場合には、下から上へ流れる逆
流水の圧力が微圧の場合には、天井部72aへの弁体7
3の押し付け力が小さく、完全に排水路71を密閉する
ことができにくく、微圧がダラダラと続く場合には水が
逆流し続けてしまうという問題点があり、弁体73と弁
ケース72間に精度が必要となり、また、上から汚水が
流下すると弁体73の上面に汚物が残り、逆止性に影響
を与えてしまうという問題点があった。
[0003] However, when the check valve 56 is formed of such a flat valve body 73, when the pressure of the backflow water flowing from the bottom to the top is a very small pressure, the check valve 56 is applied to the ceiling 72a. Valve element 7
3 is small, it is difficult to completely seal the drainage channel 71, and there is a problem that the water continues to flow backward when the minute pressure continues to flow, and between the valve body 73 and the valve case 72. In addition, there is a problem that if the sewage flows down from above, sewage remains on the upper surface of the valve body 73, which affects the checkability.

【0004】また、従来、図12及び図13に示すよう
な球型の弁体75で構成される逆止弁56が存在し、こ
の球型の弁体75を有するものにおいては、弁体75に
上方からの汚物は溜まりにくいものであるが、下方側か
ら微圧が働く場合には弁体75の押し付け力が小さく、
完全に密封できないという問題点があり、弁体75と弁
ケース72間の精度が必要となるという問題点がある。
Conventionally, there has been a check valve 56 composed of a spherical valve element 75 as shown in FIGS. 12 and 13. In a valve having this spherical valve element 75, a valve element 75 is provided. The dirt from above is difficult to collect, but when a small pressure acts from below, the pressing force of the valve body 75 is small,
There is a problem that it cannot be completely sealed, and a problem that accuracy between the valve body 75 and the valve case 72 is required.

【0005】また、さらに図14及び図15に示すよう
な傘型の弁体76を備えた逆止弁56においても、上方
からの汚物は溜まりにくいが、下方側からの微圧に対し
て良好な逆止機能を果たすことができないという問題点
がある。即ち、図14及び図15の弁体76は、上端に
断面三角形状のゴム部76aを有し、下部に中空浮き部
76bを有するものである。
Further, in the check valve 56 having an umbrella-shaped valve body 76 as shown in FIGS. 14 and 15, it is difficult to collect dirt from above, but it is good against minute pressure from below. However, there is a problem that it is not possible to perform a proper check function. That is, the valve body 76 shown in FIGS. 14 and 15 has a rubber portion 76a having a triangular cross section at the upper end and a hollow floating portion 76b at the lower portion.

【0006】次に、従来の逆傘型の弁体77を備えた逆
止弁56を、図16及び図17に示すが、この従来の逆
傘型の弁体77は、外周側が上方へ湾曲したゴム部77
aの下部に中空浮き部77bが一体化されたものであ
り、下方側からの逆流水の圧力が微圧の場合にも、図1
7に示すように、ゴム部77aの外周側が良好に弁ケー
ス72の天井部に密着して、逆流水を良好に遮断するこ
とができるものであるが、上方側から汚水が流れ込む
と、ゴム部77aの上面に汚物が溜まりやすく、逆止性
能に影響を与えてしまうという問題点があった。
Next, a check valve 56 provided with a conventional inverted umbrella type valve body 77 is shown in FIGS. 16 and 17. The conventional inverted umbrella type valve body 77 has an outer peripheral side curved upward. Rubber part 77
a is integrated with the hollow floating portion 77b at the lower part of FIG.
As shown in FIG. 7, the outer peripheral side of the rubber portion 77a can be satisfactorily adhered to the ceiling of the valve case 72 and can block the backflow water satisfactorily. There is a problem that dirt easily accumulates on the upper surface of 77a, which affects the check performance.

【0007】[0007]

【課題を解決するための手段】本発明は上記従来の問題
点に鑑み案出したものであって、逆流水の圧力が微圧の
場合にも良好な逆止機能を発揮することができ、かつ汚
物が溜まりにくく、メンテナンスが容易となる逆止弁構
造を提供せんことを目的とし、その第1の要旨は、ケー
ス内に移動可能に配設された弁体は、ゴム等の軟質材で
外周が薄肉状に跳ね上がった逆傘状に形成され、中央部
に上方へ突出した突起が形成されていることである。ま
た、第2の要旨は、前記ケースは縦方向の水路内に設け
られ、前記弁体は、前記水路を上から下へ流れる水は流
すが、下から上へ流れる水は遮断するように前記ケース
内で作用することである。また、第3の要旨は、前記弁
体は、下部に浮力体が付設されていることである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and can exhibit a good check function even when the pressure of the backflow water is very small. The first gist of the present invention is to provide a check valve structure in which dirt does not easily accumulate and maintenance is easy. The first gist is that the valve body movably disposed in the case is made of a soft material such as rubber. The outer periphery is formed in the shape of an inverted umbrella that is jumped up in a thin shape, and a protrusion that protrudes upward is formed in the center. A second gist is that the case is provided in a vertical waterway, and the valve element is configured to flow water flowing from the top to the bottom in the waterway, but to shut off water flowing from the bottom to the top. It works in the case. A third gist is that the valve body is provided with a buoyant body at a lower portion.

【0008】[0008]

【実施例】以下、本発明の実施例を図面に基づいて説明
する。図1は、前述した図8及び図9に示すような、縦
方向に水が流れる水路内に配設された逆止弁56の断面
拡大図を示すものであり、図1において、縦方向の排水
路71内に弁ケース72が形成されており、この弁ケー
ス72の底側には開口脚74が立設されて、上方側から
下方側へ水が流下する時にはこの開口脚74上に弁体1
が当接して、良好に上方側から下方側へ水を流すことが
できるように構成され、また逆に、下方側から上方側へ
向かう逆流水に対しては、弁体1が弁ケース72内で浮
上し、弁ケース72の天井部72aに弁体1が当接状に
密着して、逆流を防ぐように構成されており、弁ケース
72内に設けられる弁体1は、ゴム等の軟質材で形成さ
れた軟質部2の外周側は上方へ向かって湾曲し、外周側
は極めて薄い薄肉状の先端薄肉部2aを形成しており、
また、軟質部2の中心には上方側へ一体状に立ち上がっ
て錐形状の中央突起3が一体形成されたものとなってお
り、また、軟質部2の下面中央部には中空状の浮力体4
が付設されたものとなっている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged cross-sectional view of a check valve 56 disposed in a water channel in which water flows vertically, as shown in FIGS. 8 and 9 described above. A valve case 72 is formed in the drainage channel 71, and an opening leg 74 is erected on the bottom side of the valve case 72, and when water flows from the upper side to the lower side, a valve is provided on the opening leg 74. Body 1
Is contacted to allow water to flow from the upper side to the lower side in a favorable manner. The valve element 1 comes into close contact with the ceiling portion 72a of the valve case 72 in a contact state to prevent backflow. The valve element 1 provided in the valve case 72 is made of a soft material such as rubber. The outer peripheral side of the soft portion 2 formed of a material is curved upward, and the outer peripheral side forms a very thin thin tip thin portion 2a.
In the center of the soft portion 2, a conical central projection 3 is integrally formed to rise integrally upward, and a hollow buoyant body is provided at the center of the lower surface of the soft portion 2. 4
Is attached.

【0009】このような構成の弁体1においては、逆流
水の圧力が微圧の場合にも、逆流水により弁ケース72
内で弁体1が浮き上がり、弁ケース72の天井部72a
内面に先端薄肉部2aが密着状に当接して、良好に逆止
機能を果たすことができるものとなり、上方から下方側
へ向かって排水が流下する際には、図3の矢印で示すよ
うに、排水は中央突起3に沿って軟質部2の上面に当接
状に流下するが、軟質部2は湾曲されており、排水は中
央突起3の下端から外側へ弾かれて、良好に排水が弁体
1の外側に回り込んで流下されることとなり、入浴剤等
の汚水が流下する時にも、このような排水の流れが形成
されるため、軟質部2の上面に汚物が残ることが少なく
なり、汚物は良好に弁体1の外側に弾かれて排出される
こととなる。
In the valve element 1 having such a configuration, even when the pressure of the backflow water is a slight pressure, the valve case 72 is formed by the backflow water.
The valve element 1 rises up inside, and the ceiling portion 72a of the valve case 72
The thin-walled end portion 2a comes into close contact with the inner surface, so that the check function can be satisfactorily performed. When drainage flows downward from above, as shown by arrows in FIG. However, the drainage flows down along the central protrusion 3 in an abutting manner on the upper surface of the soft portion 2, but the soft portion 2 is curved, and the drainage is repelled outward from the lower end of the central protrusion 3, so that the drainage is excellent Since the wastewater flows around the outside of the valve body 1 and flows down, and when wastewater such as a bath agent flows down, such a flow of drainage is formed. Thus, the waste is satisfactorily flipped out of the valve body 1 and discharged.

【0010】なお、軟質部2は図2に示すように、その
中央部に上方へ***した中央段部2bを一体形成し、中
央段部2bの中央に上方へ突出させて中央突起3を一体
形成させたものであっても、同様に上方からの排水を良
好に外側へ弾き出して、上面側に汚物が残ることを良好
に防ぐことができるものとなる。
As shown in FIG. 2, the soft portion 2 is integrally formed with a central step 2b protruding upward at the center thereof, and is protruded upward at the center of the center step 2b to integrally form the central projection 3. Even if it is formed, similarly, drainage from above can be satisfactorily pushed out to the outside, so that it is possible to satisfactorily prevent filth from remaining on the upper surface side.

【0011】なお、このような中央突起3を一体形成し
た弁体1においては、逆止弁56をメンテナンスする際
にも図4に示すように、この中央突起3を指で摘んで弁
体1を弁ケース72から良好に引き上げて取り出すこと
ができ、弁体1のメンテナンスとか交換等を容易に行う
ことができるものとなる。なお、参考のために図5に示
すように、従来の逆傘型の弁体77は、弁ケース72の
ケース蓋72bを取り外して内部から取り出そうとする
時に、弁ケース72に指が当たって、摘み出すことが困
難となり、メンテナンス性が悪いものであった。
In the valve body 1 integrally formed with such a central projection 3, when the check valve 56 is maintained, as shown in FIG. Can be satisfactorily pulled up from the valve case 72 and taken out, so that maintenance or replacement of the valve element 1 can be easily performed. As shown in FIG. 5 for reference, when the conventional inverted umbrella type valve body 77 is to be removed from the inside by removing the case lid 72b of the valve case 72, a finger hits the valve case 72, It was difficult to pick it out and maintenance was poor.

【0012】次に、図6に示すものは、弁ケース72の
底側に立設される開口脚74を省略した構成の逆止弁5
6であり、この逆止弁56では、弁ケース72は箱状に
形成され、その内部に内装される弁体1は、図7の斜視
図で示すような構造に形成されたものである。
FIG. 6 shows a check valve 5 having a configuration in which an opening leg 74 provided on the bottom of a valve case 72 is omitted.
In this check valve 56, the valve case 72 is formed in a box shape, and the valve element 1 provided therein is formed in a structure as shown in the perspective view of FIG.

【0013】即ち、弁体1は、外周側が上方側へ跳ね上
がった薄肉状の先端薄肉部2aを形成している軟質部2
の中央に、中央突起3が一体状に立設されており、この
軟質部2の下面に、円筒状の中空浮力体4が固着されて
おり、この中空浮力体4の外周には、間隔をおいて外側
へ突出する外周羽根部5,5,5が一体形成されたもの
で、この外周羽根部5,5,5及び中空浮力体4は硬質
樹脂で形成することができるものであり、このような外
周羽根部5,5,5を有する円筒状の中空浮力体4を付
設したことにより、弁ケース72内で弁体1が上下動す
る際に、横方向へのガタつきが外周羽根部5,5,5に
より防がれて、軟質部2は左右方向にガタつくことなく
良好に上下動することができ、弁体1の弁ケース72内
での納まりが良好なものとなる。
That is, the valve element 1 has a soft portion 2 which forms a thin-walled tip thin portion 2a whose outer peripheral side is jumped upward.
A central projection 3 is integrally provided upright at the center of the body, and a hollow hollow buoyant body 4 is fixed to the lower surface of the soft portion 2. In this case, the outer peripheral blades 5, 5, 5 and the hollow buoyant body 4 are integrally formed. The outer peripheral blades 5, 5, 5 and the hollow buoyant body 4 can be formed of hard resin. By providing the cylindrical hollow buoyant body 4 having the outer peripheral blade portions 5, 5, 5 as described above, when the valve body 1 moves up and down in the valve case 72, rattling in the lateral direction is reduced. The flexible portion 2 can be moved up and down satisfactorily without rattling in the left-right direction, and the fitting of the valve element 1 in the valve case 72 becomes good.

【0014】この図6及び図7に示すような弁体1を備
えた逆止弁56においても、上からの汚物が溜まりにく
く、また、逆流水が微圧の時にも良好に逆止機能を果た
すことができ、しかもメンテナンス時等に取り出しやす
くなり、メンテナンス等が容易となるものである。
In the check valve 56 having the valve element 1 as shown in FIGS. 6 and 7, it is difficult to collect dirt from above, and the check valve has a good check function even when the backflow water has a slight pressure. This can be achieved, and it can be easily taken out at the time of maintenance or the like, so that maintenance or the like becomes easy.

【0015】[0015]

【発明の効果】本発明の逆止弁構造は、ケース内に移動
可能に配設された弁体は、ゴム等の軟質材で外周が薄肉
状に跳ね上がった逆傘状に形成され、中央部に上方へ突
出した突起が形成されていることにより、軟質部の上面
に汚物が溜まりにくくなり、しかも逆流水が微圧の場合
にも良好に浮上して、ケースに密着して良好な逆止機能
を発揮することができ、しかも中央部の突起を摘んで容
易にケースから取り出すことができ、メンテナンス性が
向上する効果を有する。
According to the check valve structure of the present invention, the valve element movably disposed in the case is formed of a soft material such as rubber and formed in an inverted umbrella shape having a thin outer periphery and a central portion. The projections that project upwards make it difficult for dirt to collect on the upper surface of the soft part. The function can be exhibited, and the protrusion at the center can be easily picked out of the case by gripping, thereby improving the maintainability.

【0016】また、前記ケースは縦方向の水路内に設け
られ、前記弁体は、前記水路を上から下へ流れる水は流
すが、下から上へ流れる水は遮断するように前記ケース
内で作用するため、上方から流下する水を軟質部の外周
側へ弾き出して汚物が溜まることを良好に防ぎ、また、
下方側から上方へ向かう逆流水が作用した時には軟質部
の外周の薄肉状の部分がケースの内周面に密着状に当接
されて、逆流水が微圧の場合でも良好な逆止機能を果た
すことができる効果を有する。
Further, the case is provided in a vertical waterway, and the valve element is provided in the case so that water flowing from the top to the bottom flows through the waterway, but water flowing from the bottom to the top is shut off. Because it acts, water flowing down from above is blown out to the outer peripheral side of the soft part to prevent scum from accumulating well.
When backflow water acts upward from the lower side, the thin part of the outer periphery of the soft part is in close contact with the inner peripheral surface of the case, providing a good check function even when the backflow water is weak pressure. Has effects that can be achieved.

【0017】また、前記弁体は、下部に浮力体が付設さ
れていることにより、逆流水が作用した時に浮力体が良
好に軟質部を押し上げて、逆流水が微圧の場合にも良好
な逆止機能を発揮することができる効果を有する。
Further, the valve body has a buoyancy member attached to the lower portion, so that the buoyancy body satisfactorily pushes up the soft portion when the backflow water acts, so that even when the backflow water is a small pressure, the buoyancy body is good. It has the effect that the check function can be exhibited.

【図面の簡単な説明】[Brief description of the drawings]

【図1】縦方向の排水路内に設けられた逆止弁の拡大断
面図である。
FIG. 1 is an enlarged sectional view of a check valve provided in a vertical drainage channel.

【図2】弁体の変更例を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing a modified example of a valve body.

【図3】上方側からの排水の流れを示す作用説明図であ
る。
FIG. 3 is an operation explanatory view showing a flow of drainage from above.

【図4】メンテナンス時等に中央突起を摘んで弁ケース
から弁体を取り出す状態の作用説明図である。
FIG. 4 is an operation explanatory view of a state in which a central projection is picked out and a valve body is taken out of a valve case during maintenance or the like.

【図5】従来の逆傘型の弁体を弁ケースから取り出そう
とする状態の作用説明図である。
FIG. 5 is an operation explanatory view in a state where a conventional inverted umbrella type valve body is about to be taken out of a valve case.

【図6】改良型の弁体を内装した逆止弁の断面拡大構成
図である。
FIG. 6 is an enlarged cross-sectional configuration diagram of a check valve including an improved valve body.

【図7】図6の弁体の斜視構成図である。FIG. 7 is a perspective configuration diagram of the valve body of FIG. 6;

【図8】逆止弁が設けられる場面の一例を示す概略配管
構成図である。
FIG. 8 is a schematic piping configuration diagram showing an example of a scene where a check valve is provided.

【図9】洗面台に逆止弁を設けた配管構成図である。FIG. 9 is a piping configuration diagram in which a check valve is provided in a wash basin.

【図10】従来の平型の逆止弁の断面拡大構成図であ
る。
FIG. 10 is an enlarged cross-sectional view of a conventional flat check valve.

【図11】図10の平型の逆止弁の逆止状態の作用説明
図である。
FIG. 11 is an operation explanatory view of the flat check valve of FIG. 10 in a check state.

【図12】従来の球型の逆止弁の断面拡大構成図であ
る。
FIG. 12 is a cross-sectional enlarged configuration diagram of a conventional spherical check valve.

【図13】図12の逆止状態の作用説明図である。FIG. 13 is an operation explanatory view of the check state in FIG. 12;

【図14】従来の傘型の逆止弁の断面拡大構成図であ
る。
FIG. 14 is an enlarged sectional view of a conventional umbrella type check valve.

【図15】図14の傘型逆止弁の逆止状態の作用説明図
である。
FIG. 15 is an operation explanatory view of the umbrella type check valve of FIG. 14 in a check state.

【図16】従来の逆傘型の逆止弁の断面拡大構成図であ
る。
FIG. 16 is an enlarged sectional view of a conventional inverted umbrella check valve.

【図17】図16の逆止弁の逆止状態の作用説明図であ
る。
FIG. 17 is an operation explanatory view of the check valve in FIG. 16 in a check state.

【符号の説明】[Explanation of symbols]

1 弁体 2 軟質部 2a 先端薄肉部 2b 中央段部 3 中央突起 4 浮力体(中空浮力体) 5 外周羽根部 56 逆止弁 71 排水路 72 弁ケース 72a 天井部 74 開口脚 DESCRIPTION OF SYMBOLS 1 Valve body 2 Soft part 2a Tip thin part 2b Center step part 3 Center protrusion 4 Floating body (hollow buoyant body) 5 Outer peripheral blade part 56 Check valve 71 Drainage channel 72 Valve case 72a Ceiling part 74 Open leg

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 ケース内に移動可能に配設された弁体
は、ゴム等の軟質材で外周が薄肉状に跳ね上がった逆傘
状に形成され、中央部に上方へ突出した突起が形成され
ていることを特徴とする逆止弁構造。
1. A valve body movably disposed in a case is formed of a soft material such as rubber and has an inverted umbrella shape whose outer periphery is bounced up in a thin shape, and a projection protruding upward is formed in a central portion. A check valve structure.
【請求項2】 前記ケースは縦方向の水路内に設けら
れ、前記弁体は、前記水路を上から下へ流れる水は流す
が、下から上へ流れる水は遮断するように前記ケース内
で作用することを特徴とする請求項1に記載の逆止弁構
造。
2. The case is provided in a vertical waterway, and the valve element is provided in the case so that water flowing from top to bottom flows through the waterway, but water flowing from bottom to top is shut off. The check valve structure according to claim 1, wherein said check valve operates.
【請求項3】 前記弁体は、下部に浮力体が付設されて
いることを特徴とする請求項1に記載の逆止弁構造。
3. The check valve structure according to claim 1, wherein the valve body has a buoyancy member attached to a lower portion thereof.
JP27945898A 1998-09-14 1998-09-14 Check valve structure Expired - Fee Related JP3486766B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27945898A JP3486766B2 (en) 1998-09-14 1998-09-14 Check valve structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27945898A JP3486766B2 (en) 1998-09-14 1998-09-14 Check valve structure

Publications (2)

Publication Number Publication Date
JP2000088123A true JP2000088123A (en) 2000-03-31
JP3486766B2 JP3486766B2 (en) 2004-01-13

Family

ID=17611360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27945898A Expired - Fee Related JP3486766B2 (en) 1998-09-14 1998-09-14 Check valve structure

Country Status (1)

Country Link
JP (1) JP3486766B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010286086A (en) * 2009-06-15 2010-12-24 Denso Corp Fluid valve
CN109431352A (en) * 2018-12-12 2019-03-08 广州市欧碧宝科技有限公司 A kind of soap dispenser fluid stopping check valve
KR101994923B1 (en) * 2018-03-27 2019-07-03 현대강전(주) Valve assembly having a plurality of inlet and outlet ports

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010286086A (en) * 2009-06-15 2010-12-24 Denso Corp Fluid valve
KR101994923B1 (en) * 2018-03-27 2019-07-03 현대강전(주) Valve assembly having a plurality of inlet and outlet ports
CN109431352A (en) * 2018-12-12 2019-03-08 广州市欧碧宝科技有限公司 A kind of soap dispenser fluid stopping check valve
CN109431352B (en) * 2018-12-12 2024-03-29 广州市欧碧宝科技有限公司 Check valve for soap dispenser

Also Published As

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