JP2012127431A

JP2012127431A - Exhaust valve

Info

Publication number: JP2012127431A
Application number: JP2010279927A
Authority: JP
Inventors: Tetsuo Asada; 哲夫浅田
Original assignee: TLV Co Ltd
Current assignee: TLV Co Ltd
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2012-07-05
Anticipated expiration: 2030-12-15
Also published as: JP5728219B2

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of water leakage by closing a valve port by an effect that a float is promptly floated when water flows in.SOLUTION: A valve chamber 4 is formed in an exhaust valve by using a casing formed of a body 1 and a lid 2. An inlet 5 is formed at the lower part of the valve chamber 4 by being made eccentric from above the center axis of the valve chamber 4, and a valve seat 7 opened with the valve port 8 communicating with an outlet 6 at the upper side of the valve chamber 4 opposite to the side of the inlet 5 is formed from the center axis of the valve chamber 4. The spherical float 9 which directly opens and closes the valve port 8 on the outside surface is arranged in the valve chamber 4 in a free state. An inclination face 11 which positions the side of the external periphery of the float 9 in the upper part of a portion of the inlet 5 is formed in the valve chamber 4 so that the float 9 in a descending position may not be pushed up by an air flow. A partitioning member 12 which partitions the inside of the valve chamber 4 into a right valve chamber 4a and a left valve chamber 4b is arranged at the upper part of the inlet 5, a plurality of through holes 13 which make the right valve chamber 4a and the left valve chamber 4b communicate with each other are formed at the partitioning member 12, and fluids which upwardly linearly progress in the left valve chamber 4b from the inlet 5 flow into the right valve chamber 4a from the through holes 13, and press the float 8 in a valve port direction.

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、入口の上方に弁室内をフロートを配置した右弁室とその反対側の左弁室に隔てる仕切部材を配置し、仕切部材に右弁室と左弁室を連通する複数の貫通孔を設けて入口から左弁室内を上方に直進する流体が複数の貫通孔から右弁室に流入してフロートを弁口方向に押圧する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 that positions the side portion of the valve is positioned above a part of the inlet, and a partition member that divides the valve chamber above the inlet into a right valve chamber in which a float is arranged and a left valve chamber on the opposite side The partition member is provided with a plurality of through holes communicating with the right valve chamber and the left valve chamber, and the fluid that goes straight upward from the inlet into the left valve chamber flows into the right valve chamber through the plurality of through holes. It is characterized by pressing in the valve opening direction.

本発明によれば、入口の上方に弁室内をフロートを配置した右弁室とその反対側の左弁室に隔てる仕切部材を配置し、仕切部材に右弁室と左弁室を連通する複数の貫通孔を設けて入口から左弁室内を上方に直進する流体が複数の貫通孔から右弁室に流入してフロートを弁口方向に押圧するものであるので、入口から左弁室内を上方に直進する流体が複数の貫通孔から右弁室に流入してフロートを弁口方向に押圧する。空気は水よりも比重量が小さくフロートを弁口方向に押圧する力が小さいので、入口から弁室内に流入する空気流でフロートが吹き上げられることがない。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、水は空気よりも比重量が大きくフロートを弁口方向に押圧する力が大きいので、フロートが迅速に浮上して弁口を閉じる。そのため、入口から弁室内に流入する空気流でフロートが吹き上げられることがないので、空気を排出し終わらないうちに閉弁してしまうことがない。また、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ので、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 right valve chamber in which the float is disposed above the inlet and the left valve chamber on the opposite side thereof is disposed, and the partition member is connected to the right valve chamber and the left valve chamber. The fluid that goes straight through the left valve chamber from the inlet flows into the right valve chamber from the plurality of through holes and presses the float in the valve opening direction. The fluid that goes straight to the right flows into the right valve chamber from the plurality of through holes and presses the float in the valve opening direction. Since air has a smaller specific weight than water and a small force to press the float in the valve opening direction, the float is not blown up by the air flow flowing into the valve chamber from the inlet. When the air discharge is completed and water flows into the valve chamber from the inlet, the water has a higher specific weight than air and has a greater force to push the float toward the valve opening. Close your mouth. Therefore, since the float is not blown up by the air flow flowing into the valve chamber from the inlet, the valve is not closed before the air is completely discharged. Further, when the air discharge is completed and water flows into the valve chamber from the inlet, the float quickly rises and closes the valve opening, so that an excellent effect of preventing water leakage is produced.

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内をフロート９を配置した右弁室４ａとその反対側の左弁室４ｂに隔てる仕切部材１２を配置し、仕切部材１２に右弁室４ａと左弁室４ｂを連通する複数の貫通孔１３を設ける。入口５から左弁室４ｂ内を上方に直進する流体が複数の貫通孔１３から右弁室４ａに流入してフロート９を弁口８方向に押圧する。 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 separating the right valve chamber 4a in which the float 9 is disposed in the valve chamber 4 and the left valve chamber 4b on the opposite side of the valve chamber 4 is disposed above the inlet 5, and the right valve chamber 4a and the left valve chamber 4b are separated in the partition member 12. A plurality of through holes 13 that communicate with each other are provided. A fluid that travels straight upward from the inlet 5 in the left valve chamber 4 b flows into the right valve chamber 4 a from the plurality of through holes 13 and presses the float 9 toward the valve port 8.

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の右部から右弁室４ａに流入した空気がフロート９に当たり、入口５の左部から左弁室４ｂに流入し複数の貫通孔１３から右弁室４ａに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. The air flowing into the valve chamber 4 from the inlet 5 flows into the right valve chamber 4a from the right portion of the inlet 5, hits the float 9, flows into the left valve chamber 4b from the left portion of the inlet 5, and has a plurality of through holes. The air flowing from 13 into the right valve chamber 4 a 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の右部から右弁室４ａに流入した水がフロート９に当たり、入口５の左部から左弁室４ｂに流入し複数の貫通孔１３から右弁室４ａに流入した水がフロート９に当たりフロート９を弁口８方向に押圧する。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 that flows in from the inlet 5 and rises in the valve chamber 4 hits the float 9 from the right part of the inlet 5 and flows into the left valve chamber 4b from the left part of the inlet 5 and has a plurality of through holes. Water flowing into the right valve chamber 4a from 13 hits the float 9 and presses the float 9 toward the valve port 8. 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
４ｂ左弁室
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
１３貫通孔 DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Outlet passage 4 Valve chamber 4a Right valve chamber 4b Left valve chamber 5 Inlet 6 Outlet 7 Valve seat 8 Valve port 9 Float 10 Float seat 11 Inclined surface 12 Partition member 13 Through-hole

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、入口の上方に弁室内をフロートを配置した右弁室とその反対側の左弁室に隔てる仕切部材を配置し、仕切部材に右弁室と左弁室を連通する複数の貫通孔を設けて入口から左弁室内を上方に直進する流体が複数の貫通孔から右弁室に流入してフロートを弁口方向に押圧する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 In the one formed in the valve chamber, a partition member separating the right valve chamber in which the float is disposed above the inlet and the left valve chamber on the opposite side is disposed, and the right valve chamber and the left valve chamber are communicated with the partition member. An exhaust valve characterized in that a plurality of through holes are provided, and fluid that moves straight upward from the inlet into the left valve chamber flows into the right valve chamber from the plurality of through holes and presses the float in the valve opening direction.