JP2006300103A

JP2006300103A - Exhaust valve

Info

Publication number: JP2006300103A
Application number: JP2005118588A
Authority: JP
Inventors: Tetsuo Asada; 哲夫浅田
Original assignee: TLV Co Ltd
Current assignee: TLV Co Ltd
Priority date: 2005-04-15
Filing date: 2005-04-15
Publication date: 2006-11-02
Anticipated expiration: 2025-04-15
Also published as: JP4602824B2

Abstract

<P>PROBLEM TO BE SOLVED: To prevent water from leaking by closing a valve port by a float rapidly rising when water flows therein. <P>SOLUTION: A valve chamber 4 is formed in a casing comprising a body 1 and a cover 2. An inlet 5 is formed in the lower part of the valve chamber 4 eccentrically to the center axis of the valve chamber 4. A valve seat 7 having, therein, the valve port 8 communicating with an outlet 6 is formed from the center axis of the valve chamber 4 to the upper side of the valve chamber 4 on the opposite side of the inlet 5. A spherical float 9 directly opened and closed on the outer surface of the valve port 8 is disposed in the valve chamber 4 in a free state. A tilted surface 11 positioning the outer peripheral side part of the float 9 at the upper part of a part of the inlet 5 is formed in the valve chamber 4 so that the float 9 at the lowered position is not pushed up by an air flow. A baffle plate 12 changing the flow in the lateral direction by the collision of a part of a fluid straightly advancing from the inlet 5 upward in the valve chamber 4 is installed on the side of the float 9 at the upper part of a part of the inlet 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

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、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。 In the conventional exhaust valve, a valve chamber is formed inside by a casing, an inlet is formed at a lower portion of the valve chamber by being eccentric from the central axis of the valve chamber, and the valve on the opposite side of the inlet from the central axis of the valve chamber is formed. A valve port leading to the outlet is formed on the upper side of the chamber, and 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 so that the float in the lowered position cannot be pushed up by the airflow. In addition, an inclined surface is formed in the valve chamber to position the side of the outer periphery of the float above a part of the inlet.

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。
特開２００５−６１５２３ 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.
JP-A-2005-61523

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。 The problem to be solved is to prevent the water from leaking by causing the float to rise quickly and close the valve opening when water flows in.

本発明は、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、入口から弁室内を上方に直進する流体の一部が衝突して流れを横方向に変換する衝突板を入口の一部の上方のフロートの横に設けたことを特徴とする。 In the present invention, a valve chamber is formed inside the casing, an inlet is formed at a lower portion of the valve chamber from the central axis of the valve chamber, and an inlet is formed on the opposite side of the valve chamber from the central axis of the valve chamber. Form a valve port leading to the outlet on the upper side, a spherical float that opens and closes the valve port directly on the outer surface is placed in a free state in the valve chamber, and the outer peripheral side of the float is positioned above a part of the inlet In the case where an inclined surface is formed in the valve chamber, a collision plate that converts a part of the fluid that travels straight upward from the inlet into the valve chamber and converts the flow to the lateral direction is placed next to the float above the part of the inlet. It is provided.

本発明は、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。 In the present invention, 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 exhausted. 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.

本発明の排気弁は、入口から弁室内を上方に直進する流体の一部が衝突して流れを横方向に変換させる衝突板を入口の一部の上方のフロートの横に設けたものであるので、入口から弁室内を上方に直進する流体の一部が衝突板に衝突して流れを横方向に変換し、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。 The exhaust valve of the present invention is provided with a collision plate beside a float above a part of the inlet, which collides with a part of the fluid that travels straight upward from the inlet into the valve chamber and converts the flow into a lateral direction. Therefore, a part of the fluid traveling straight upward from the inlet into the valve chamber collides with the collision plate to convert the flow to the lateral direction and press 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.

上記の技術的手段の具体例を示す実施例を説明する（図１と図２参照）。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。 An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 and 2). 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から弁室４内を上方に直進する流体の一部が衝突して流れを横方向に変換する断面コ文字状の衝突板１２をビス１３，１４でフロート９の横の弁室４の側壁に固定する。参照番号１５，１６はビス孔である。 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 collision plate 12 having a U-shaped cross section that converts a part of the fluid that travels straight in the valve chamber 4 from the inlet 5 into the lateral direction collides with the screws 13 and 14 in the valve chamber 4 next to the float 9. Secure to the side wall. Reference numerals 15 and 16 are screw holes.

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に当たり、入口５の左部から流入し衝突板１２に衝突して流れを横方向に変換した空気の一部がフロート９に当たる。空気は水よりも比重量が小さいので、また入口５の中央から流入しフロート９に当たらずに弁室４の天井壁に衝突して跳ね返る空気がフロート９を下方に押圧するので、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。 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 in from the inlet 5 and rising up the valve chamber 4 is that the air flowing in from the right part of the inlet 5 hits the float 9, flows in from the left part of the inlet 5 and collides with the collision plate 12 to convert the flow into the lateral direction. Part of the air hits the float 9. Since the specific weight of air is smaller than that of water, air that flows in from the center of the inlet 5 and does not hit the float 9 and collides with the ceiling wall of the valve chamber 4 and rebounds presses the float 9 downward. Without being blown up, it is discharged from the valve port 8 through the outlet passage 3 to the outlet.

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、入口５の左部から流入し衝突板１２に衝突して流れを横方向に変換した水の一部がフロート９に当たる。水は空気よりも比重量が大きいので、また衝突板１２を設けたことにより、入口５から流入しフロート９に当たらずに弁室４の天井壁に衝突して跳ね返りフロート９を下方に押圧する水の量が少ないので、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, flows in from the left part of the inlet 5 and collides with the collision plate 12 to convert the flow into the lateral direction. Part of the water hits float 9. Since the specific weight of water is larger than that of air, the collision plate 12 is provided, so that the water flows from the inlet 5 and does not hit the float 9 and collides with the ceiling wall of the valve chamber 4 to rebound and press the float 9 downward. Since the amount of water is small, the float 9 rises quickly and closes the valve port 8.

本発明の排気弁の断面図。Sectional drawing of the exhaust valve of this invention. 図１の衝突板１２の右側面図。The right view of the collision board 12 of FIG.

符号の説明Explanation of symbols

１本体
２蓋
３出口通路
４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衝突板
DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Outlet passage 4 Valve chamber 5 Inlet 6 Outlet 7 Valve seat 8 Valve port 9 Float 10 Float seat 11 Inclined surface 12 Colliding plate

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、入口から弁室内を上方に直進する流体の一部が衝突して流れを横方向に変換する衝突板を入口の一部の上方のフロートの横に設け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 a free state in the valve chamber, 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 collision plate that converts a part of the fluid that travels straight upward from the inlet into the valve chamber and converts the flow to the lateral direction is provided beside the float above a part of the inlet. Features an exhaust valve.