JP2013040660A

JP2013040660A - Exhaust valve

Info

Publication number: JP2013040660A
Application number: JP2011179038A
Authority: JP
Inventors: Tetsuo Asada; 哲夫浅田
Original assignee: TLV Co Ltd
Current assignee: TLV Co Ltd
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2013-02-28
Anticipated expiration: 2031-08-18
Also published as: JP5756369B2

Abstract

PROBLEM TO BE SOLVED: To prevent leakage of water by allowing a float to promptly rise up to the surface upon inlet of water to turn a valve port closed.SOLUTION: A casing is provided consisting of a body 1 and a cover 2, having a valve chamber 4 formed therein. An inlet 5 is formed at the lower part of the valve chamber 4 at a position eccentric from the center axis line of the valve chamber 4, while a valve seat 7 is formed, with a valve port 8 opened therein, in communication with an exit 6, to the upper side direction of the valve chamber 4 opposite the inlet 5 from through the center axis line of the valve chamber 4. A globular float 9 that directly opens and closes the valve port 8 with its outer surface is disposed within the valve chamber 4 in an free state. A slope surface 11 that keeps the side part of the outer periphery of the globular float 9 at the upper part of a part of the inlet 5 in order for the globular float 9 at a descended position not to be pushed up by an air flow is formed within the valve chamber 4. Above the inlet 5, a partitioning member 12 is allocated to separate the upper part of the valve chamber 4 between a right side upper part of the valve chamber 4a which is the side to which the globular float 9 is allocated and a left side upper part of the valve chamber 4b which is located opposite thereof.

Description

本発明は、冷水や温水等の水配管に取り付けて、水配管内の空気を排出する排気弁に関する。 The present invention relates to an exhaust valve that is attached to a water pipe such as cold water or hot water and discharges air in the water pipe.

従来の排気弁は、例えば特許文献１に開示されている。これは、ケーシングで内部に弁室を形成し、弁室の下部に弁室の中心軸上から偏心させて入口を形成し、弁室の中心軸上から入口とは反対側の弁室の上部側方に出口に通じる弁口を形成し、弁口を外表面で直接開閉する球形のフロートを弁室内に自由状態で配置し、降下位置にあるフロートが空気流で押し上げられないようにフロート外周の側部を入口の一部の上方に位置せしめる傾斜面を弁室内に形成したものである。 A conventional exhaust valve is disclosed in Patent Document 1, for example. This is because the valve chamber is formed inside the casing, and the inlet is formed in the lower portion of the valve chamber by being eccentric from the central axis of the valve chamber, and the upper portion of the valve chamber on the opposite side of the inlet from the central axis of the valve chamber. A spherical float that opens to the side is formed on the side, and a spherical float that opens and closes directly on the outer surface is placed in the valve chamber in a free state so that the float in the lowered position cannot be pushed up by the air flow. An inclined surface is formed in the valve chamber so as to position the side portion above the part of the inlet.

特開特開２００５−６１５２３号公報JP, 2005-61523, A

上記従来の排気弁は、降下位置にあるフロートが空気流で押し上げられないようにフロート外周の側部を入口の上方に位置せしめたものであるが、空気の排出完了後、水の殆どが入口から弁室内を上方に直進し、弁室の天井壁に衝突して跳ね返りフロートを下方に押し下げるために、フロートの浮上が遅れ、水漏れを生じる問題点があった。 In the conventional exhaust valve, the side of the outer periphery of the float is positioned above the inlet so that the float in the lowered position is not pushed up by the air flow. In this case, the valve chamber goes straight upward, collides with the ceiling wall of the valve chamber, bounces back, and pushes the float downwards.

したがって本発明が解決しようとする課題は、水が流入してくればフロートが迅速に浮上して弁口を閉じ、水漏れを生じないようにすることである。 Therefore, the problem to be solved by the present invention is to prevent the water from leaking by causing the float to rise quickly and close the valve opening when water flows in.

上記の課題を解決するために、本発明の排気弁は、ケーシングで内部に弁室を形成し、弁室の下部に弁室の中心軸上から偏心させて入口を形成し、弁室の中心軸上から入口とは反対側の弁室の上部側方に出口に通じる弁口を形成し、弁口を外表面で直接開閉する球形のフロートを弁室内に自由状態で配置し、フロートの外周の側部を入口の一部の上方に位置せしめる傾斜面を弁室内に形成したものにおいて、入口の上方に弁室上部をフロートが配置された側である右弁室上部とその反対側である左弁室上部に隔てる仕切部材を配置したことを特徴とするものである。 In order to solve the above problems, the exhaust valve of the present invention forms a valve chamber inside the casing, and forms an inlet at a lower portion of the valve chamber from the central axis of the valve chamber to form an inlet. A spherical float that opens and closes the valve port directly on the outer surface is placed in the valve chamber in a free state, and the outer periphery of the float is formed. In the valve chamber, an inclined surface is formed in the valve chamber, which is positioned above a part of the inlet. The upper portion of the valve chamber is above the inlet and is on the opposite side to the upper right valve chamber, which is the side where the float is disposed. A partition member separated from the upper part of the left valve chamber is arranged.

本発明によれば、入口の上方に弁室上部をフロートが配置された側である右弁室上部とその反対側である左弁室上部に隔てる仕切部材を配置したものであるので、入口から左弁室上部を直進して弁室の天井壁に衝突して跳ね返る水を仕切部材に衝突させることにより、フロートを下方に付勢する水を少なくすることができる。そのため、空気の排出を完了して入口から弁室内に水が流入してくると、フロートが迅速に浮上して弁口を閉じることができ、水漏れを生じることがないという優れた効果を生じる。 According to the present invention, the partition member separating the upper part of the valve chamber above the inlet into the upper part of the right valve chamber which is the side where the float is arranged and the upper part of the left valve chamber which is the opposite side is arranged. The water that urges the float downward can be reduced by causing the partition member to collide with water that rebounds by colliding with the ceiling wall of the valve chamber by going straight through the upper part of the left valve chamber. For this reason, when the air discharge is completed and water flows into the valve chamber from the inlet, the float can quickly rise to close the valve port, resulting in an excellent effect of preventing water leakage. .

本発明の実施の形態に係わる排気弁の断面図である。It is sectional drawing of the exhaust valve concerning embodiment of this invention.

以下、本発明の実施の形態について、図１を参照して説明する。本体１に蓋２をボルトで締結してケーシングを形成し、内部に弁室４を形成する。弁室４の下部に入口５を上部に出口６を形成する。蓋２に弁座７をねじ結合する。弁座７は弁室４の上部側方に位置している。弁座７に出口通路３を介して弁室４と出口６を連通する弁口８を開ける。入口５と出口６は弁室４の中心軸上から左側に偏心し、弁口８は弁室４の中心軸上から右側に偏心している。 Hereinafter, an embodiment of the present invention will be described with reference to FIG. A lid 2 is fastened to the main body 1 with a bolt to form a casing, and a valve chamber 4 is formed inside. An inlet 5 is formed in the lower part of the valve chamber 4 and an outlet 6 is formed in the upper part. The valve seat 7 is screwed to the lid 2. The valve seat 7 is located on the upper side of the valve chamber 4. A valve port 8 communicating the valve chamber 4 and the outlet 6 through the outlet passage 3 is opened in the valve seat 7. The inlet 5 and the outlet 6 are eccentric from the central axis of the valve chamber 4 to the left, and the valve port 8 is eccentric from the central axis of the valve chamber 4 to the right.

弁室４内に中空球形のフロート９を自由状態で配置する。フロート９はその外表面で弁口８を直接開閉する。浮上して弁口８を閉じたフロート９を保持する二条のフロート座１０を弁座７に溶接して取り付ける。降下位置にあるフロート９が空気流で押し上げられないようにフロート９外周の側部を入口５の一部の上方に位置せしめる傾斜面１１を弁室４の底壁に形成する。入口５の上方に弁室４上部をフロート９が配置された側である右弁室上部４ａとその反対側である左弁室上部４ｂに隔てる仕切部材１２を配置する。仕切部材１２の下端は降下位置にあるフロート９の中心と概略同じ高さに形成する。入口５から左弁室上部４ｂを直進して弁室の天井壁に衝突して跳ね返る水を仕切部材１２に衝突させることにより、フロート９を下方に付勢する水を少なくする。 A hollow spherical float 9 is disposed in the valve chamber 4 in a free state. The float 9 directly opens and closes the valve port 8 at its outer surface. Two float seats 10 holding the float 9 that has floated and closed the valve port 8 are welded to the valve seat 7. An inclined surface 11 is formed on the bottom wall of the valve chamber 4 such that the side of the outer periphery of the float 9 is positioned above a part of the inlet 5 so that the float 9 in the lowered position cannot be pushed up by the air flow. A partition member 12 is disposed above the inlet 5 to separate the upper portion of the valve chamber 4 into a right valve chamber upper portion 4a on the side where the float 9 is disposed and a left valve chamber upper portion 4b on the opposite side. The lower end of the partition member 12 is formed at substantially the same height as the center of the float 9 in the lowered position. The water which urges the float 9 downward is reduced by causing the partition member 12 to collide with the partition member 12 with water which bounces back from the inlet valve 5 through the left valve chamber upper part 4b.

上記実施例の作動を説明する。入口５から弁室４内に空気が流入する場合、フロート９は図１に示すように、傾斜面１１によりその外周の側部が入口５の一部の上方に位置した降下位置にある。入口５から流入し弁室４を上昇する空気は、入口５の右部から流入した空気がフロート９に当たる。空気は水よりも比重量が小さいので、フロート９を吹き上げることがなく、弁口８から出口通路３を介して出口に排出される。 The operation of the above embodiment will be described. When air flows into the valve chamber 4 from the inlet 5, the float 9 is in a lowered position where the outer peripheral side is located above a part of the inlet 5 by the inclined surface 11, as shown in FIG. 1. As for the air flowing in from the inlet 5 and rising up the valve chamber 4, the air flowing in from the right part of the inlet 5 hits the float 9. Since the specific weight of air is smaller than that of water, air does not blow up the float 9 and is discharged from the valve port 8 to the outlet through the outlet passage 3.

空気の排出を完了すると入口５から弁室４内に水が流入してくる。入口５から流入し弁室４を上昇する水は、入口５の右部から流入した水がフロート９に当たり、フロート９を弁口８方向に押圧し、入口５の左部から流入し左弁室上部４ｂを直進して弁室の天井壁に衝突して跳ね返る水が仕切部材１２に衝突することにより、フロート９を下方に殆ど付勢しない。水は空気よりも比重量が大きいので、フロート９は迅速に浮上して弁口８を閉じる。 When the discharge of air is completed, water flows into the valve chamber 4 from the inlet 5. The water flowing in from the inlet 5 and rising up the valve chamber 4 hits the float 9 from the right part of the inlet 5, presses the float 9 toward the valve port 8, flows in from the left part of the inlet 5 and flows into the left valve chamber. The water that travels straight through the upper portion 4b and collides with the ceiling wall of the valve chamber collides with the partition member 12, so that the float 9 is hardly urged downward. Since water has a greater specific weight than air, the float 9 rises quickly and closes the valve port 8.

本発明は、冷水や温水等の水配管に取り付けて、水配管内の空気を排出する排気弁に利用することができる。 The present invention can be used for an exhaust valve that is attached to a water pipe such as cold water or hot water and discharges air in the water pipe.

１本体
２蓋
３出口通路
４弁室
４ａ右弁室上部
４ｂ左弁室上部
５入口
６出口
７弁座
８弁口
９フロート
１０フロート座
１１傾斜面
１２仕切部材 DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Outlet channel | path 4 Valve chamber 4a Right valve chamber upper part 4b Left valve chamber upper part 5 Inlet 6 Outlet 7 Valve seat 8 Valve port 9 Float 10 Float seat 11 Inclined surface 12 Partition member

Claims

ケーシングで内部に弁室を形成し、弁室の下部に弁室の中心軸上から偏心させて入口を形成し、弁室の中心軸上から入口とは反対側の弁室の上部側方に出口に通じる弁口を形成し、弁口を外表面で直接開閉する球形のフロートを弁室内に自由状態で配置し、フロートの外周の側部を入口の一部の上方に位置せしめる傾斜面を弁室内に形成したものにおいて、入口の上方に弁室上部をフロートが配置された側である右弁室上部とその反対側である左弁室上部に隔てる仕切部材を配置したことを特徴とする排気弁。 A valve chamber is formed inside the casing, and an inlet is formed in the lower portion of the valve chamber by being eccentric from the central axis of the valve chamber. From the central axis of the valve chamber to the upper side of the valve chamber opposite to the inlet. A spherical float that forms a valve port that leads to the outlet, opens and closes the valve port directly on the outer surface, is placed in the valve chamber in a free state, and an inclined surface that positions the outer peripheral side of the float above a part of the inlet What is formed in the valve chamber is characterized in that a partition member separating the upper part of the valve chamber above the inlet into the upper part of the right valve chamber which is the side where the float is arranged and the upper part of the left valve chamber which is the opposite side is arranged. Exhaust valve.