JPH0725374U - Check valve device - Google Patents

Check valve device

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Publication number
JPH0725374U
JPH0725374U JP061139U JP6113993U JPH0725374U JP H0725374 U JPH0725374 U JP H0725374U JP 061139 U JP061139 U JP 061139U JP 6113993 U JP6113993 U JP 6113993U JP H0725374 U JPH0725374 U JP H0725374U
Authority
JP
Japan
Prior art keywords
valve
flow path
outlet
ball valve
cage
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.)
Pending
Application number
JP061139U
Other languages
Japanese (ja)
Inventor
亨 大野
Original Assignee
東京部品工業株式会社
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 東京部品工業株式会社 filed Critical 東京部品工業株式会社
Priority to JP061139U priority Critical patent/JPH0725374U/en
Priority to KR1019940006387A priority patent/KR100243893B1/en
Priority to US08/220,715 priority patent/US5609474A/en
Publication of JPH0725374U publication Critical patent/JPH0725374U/en
Pending legal-status Critical Current

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  • Check Valves (AREA)

Abstract

(57)【要約】 【目的】流体抵抗の小さい広い流出口を確保しつつボー
ル弁を円滑に作動し得る弁制御ケージを備えた逆止弁装
置を提供すること。 【構成】垂直流路7から水平流路8へと変化する空間9
に、円筒の内部下方に弁座2を、また上方側面に流出口
3を各々形成するとともに、内径よりやや小径で前記弁
座2に着座して流路を閉じるボール弁5を内装した弁制
御用ケージ1を設置し、該ケージ1はその前記流出口3
のほぼ中央に垂直ガイド4を形成し、該ガイド4を制御
流体の流出通路11に向けて配設したことにより、殊に
正常圧の制御流体が垂直流路7に流れてボール弁5を押
し上げるとき、該ボール弁5は片寄ることなく垂直ガイ
ド4に案内され、流出口3にも引っかからず円滑に上昇
せしめることができ、また前記流出口3も細かいスリッ
トではないので、時間当りの流量を大きく且つ流体抵抗
を小さくできる。
(57) [Abstract] [PROBLEMS] To provide a check valve device including a valve control cage capable of smoothly operating a ball valve while ensuring a wide outlet having a small fluid resistance. [Structure] Space 9 that changes from vertical flow path 7 to horizontal flow path 8
A valve control in which a valve seat 2 is formed below the inside of the cylinder and an outlet 3 is formed on the upper side surface, and a ball valve 5 seated on the valve seat 2 with a diameter slightly smaller than the inner diameter to close the flow path is installed. A cage 1 is installed, and the cage 1 has the outlet 3
Since the vertical guide 4 is formed substantially at the center of the control fluid and the guide 4 is arranged toward the outflow passage 11 for the control fluid, the normal pressure control fluid flows into the vertical flow path 7 to push up the ball valve 5. At this time, the ball valve 5 is guided by the vertical guide 4 without being biased and can be smoothly raised without being caught by the outlet 3, and since the outlet 3 is not a fine slit, the flow rate per hour is large. In addition, the fluid resistance can be reduced.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、エンジン潤滑装置に使用される逆止弁装置に関するものである。 The present invention relates to a check valve device used in an engine lubrication device.

【0002】[0002]

【従来の技術】[Prior art]

前記逆止弁装置としてはボール弁を使用したものが多用されており、これは正 常圧の流れに対しては前記ボール弁が弁座から離れて流路を確保し、減圧または 逆流のあったときはボール弁が弁座に着座して流路を遮断し、逆止弁装置より下 流側のオイルを確保し、また空気の混入等を防ぐよう作動するものである。 しかし、オイル等の流動に伴い上記ボール弁の弁座からの離脱、着座が不円滑 となることがあり、これを防ぐため、例えば実開昭61−32680号や実開昭 63−62674号の各公報に開示されているような、開口またはスリットをも つボール弁の案内筒(管)が用いられている。これによって、ボール弁が弁座か ら離脱して逆止弁を開き、或いは着座して該弁を閉じるとき、ボール弁が前記案 内筒(管)に案内されて円滑に昇降するとされている。 As the check valve device, a device using a ball valve is often used. This is because when the pressure is normal or normal, the ball valve separates from the valve seat to secure a flow path, and there is a reduction or a reverse flow. In this case, the ball valve sits on the valve seat, shuts off the flow path, secures oil on the downstream side of the check valve device, and operates to prevent air from entering. However, due to the flow of oil or the like, the ball valve may become disengaged from the valve seat or become unsatisfactory in seating. To prevent this, for example, see Japanese Utility Model Publication No. 61-32680 and Japanese Utility Model Publication No. 63-62674. A guide cylinder (tube) of a ball valve having an opening or a slit as disclosed in each publication is used. As a result, when the ball valve is separated from the valve seat and the check valve is opened or seated to close the valve, the ball valve is guided by the inner cylinder (pipe) and smoothly moves up and down. .

【0003】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら、前記案内筒(管)を垂直から水平へ直角に流路が変化する空間 に配設する場合には、オイル等の流れによってボール弁が水平流路側に押圧され るので、前記実開昭61−32680号公報に開示された案内筒では、開口が大 きいためボール弁が開口に引っ掛かってかえつてその円滑な作動が妨げられ、ま た、実開昭63−62674号公報に開示された案内管ではスリットが細かいの でボール弁が引っ掛かることはないが、スリットが細かいことによって時間当り の流量が小さく、流体抵抗が大きいという問題がある。 本考案は上記に鑑み、流体抵抗の小さい広い流出口を確保しつつボール弁を円 滑に作動し得る前記案内筒(管)に相当する弁制御ケージを備えた逆止弁装置を 提供することを目的として案出されたものである。 However, when the guide tube (pipe) is arranged in a space where the flow passage changes from vertical to horizontal at a right angle, the ball valve is pressed toward the horizontal flow passage by the flow of oil, etc. In the guide cylinder disclosed in Japanese Patent No. 61-32680, the ball valve is caught in the opening due to its large opening, which hinders its smooth operation, and is disclosed in Japanese Utility Model Laid-Open No. 63-62674. The guide valve does not catch the ball valve because the slit is fine, but there is a problem that the flow rate per hour is small and the fluid resistance is large due to the fine slit. In view of the above, the present invention provides a check valve device including a valve control cage corresponding to the guide cylinder (pipe) that can smoothly operate a ball valve while ensuring a wide outlet with low fluid resistance. It was devised for the purpose.

【0004】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

上記目的を達成するための本考案逆止弁装置は、垂直から水平へ直角に流路が 変化する空間に、円筒の内部下方に弁座を、また上方側面に流出口を各々形成す るとともに、内径よりやや小径で前記弁座に着座して流路を閉じるボール弁を内 装した弁制御用ケージを設置し、該ケージはその前記流出口のほぼ中央に垂直ガ イドを形成し、該ガイドを制御流体の流出通路に向けて配設したことを特徴とす る。 The check valve device of the present invention for achieving the above object has a valve seat formed in the lower part of the inside of the cylinder and an outlet port in the upper part of the space in the space where the flow path changes from vertical to horizontal at a right angle. A valve control cage with a ball valve that is slightly smaller than the inner diameter and seats on the valve seat to close the flow passage is installed, and the cage forms a vertical guide at approximately the center of the outlet. It is characterized in that the guide is arranged toward the outflow passage of the control fluid.

【0005】[0005]

【作 用】[Work]

上記構成の本考案逆止弁装置では、正常圧の制御流体が前記垂直流路に流れる ときは、弁座に着座しているボール弁を押し上げて流出口から流出通路に流れる が、この際制御流体は2つの流出口から均等量が流出して水平流路を経て流出通 路に流れるから、ボール弁は上記のように流れる制御流体に押されて、片寄るこ となく垂直ガイドの内面に案内され、流出口に引っかかることなく円滑に上昇す ることになる。 制御流体の圧力が減圧し、或いは逆流するときはボール弁は弁制御用ケージの 前記垂直ガイド及び内壁に案内されて弁座に着座し、逆止弁を閉じる。 In the check valve device of the present invention having the above configuration, when the normal pressure control fluid flows in the vertical flow path, the ball valve seated on the valve seat is pushed up to flow from the outflow port to the outflow passage. Since the fluid flows out from the two outlets in equal amounts and flows into the outflow passage through the horizontal flow passage, the ball valve is pushed by the control fluid flowing as described above and guided to the inner surface of the vertical guide without being biased. It will rise smoothly without getting caught in the outlet. When the pressure of the control fluid is reduced or flows back, the ball valve is guided by the vertical guide and the inner wall of the valve control cage, seats on the valve seat, and closes the check valve.

【0006】[0006]

【実施例】【Example】

図において、1は円筒形の弁制御用ケージで、図4、図5に示すように、その 内径下方をやや縮径して後記ボール弁5が着座する弁座2を形成するとともに、 中間部側面に潤滑油等の制御流体の流出口3を開口し、該流出口3の中央に垂直 ガイド4を設けて同一開口面積の2つの流出口3a、3bを形成している。尚、 弁制御用ケージ1の上方端部は開放されている。 前記垂直ガイド4は、この実施例においては内側が巾広く外側が細い断面が扇 形をしているが、これは前記流出口3a、3bを垂直ガイド4を残して両側から 対称的に同径のフライスカッタで削り込んで形成したためで、垂直ガイド4の内 側が巾広故、後記のようにボール弁5の上下動を円滑に案内する。 5は弁制御用ケージ1に内装される鋼製のボール弁で、前記弁制御用ケージ1 の内径よりやや小径とし、且つ前記弁座2に密接に着座するよう精密に形成され ている。 In the figure, reference numeral 1 is a cylindrical valve control cage, and as shown in FIGS. 4 and 5, the lower inner diameter thereof is slightly reduced to form a valve seat 2 on which a ball valve 5 described later is seated, and an intermediate portion is formed. An outlet 3 for a control fluid such as lubricating oil is opened on the side surface, and a vertical guide 4 is provided at the center of the outlet 3 to form two outlets 3a and 3b having the same opening area. The upper end of the valve control cage 1 is open. In the present embodiment, the vertical guide 4 has a fan-shaped cross section with a wide inner side and a narrow outer side. This is because the outlets 3a and 3b have the same diameter symmetrically from both sides except the vertical guide 4. The vertical guide 4 has a wide inner side, so that the vertical movement of the ball valve 5 is smoothly guided as will be described later. Reference numeral 5 denotes a steel ball valve installed in the valve control cage 1, which has a diameter slightly smaller than the inner diameter of the valve control cage 1 and is precisely formed so as to be closely seated on the valve seat 2.

【0007】 上記のようにボール弁5を内装した弁制御用ケージ1は図1、図2に示すよう に、ケース6内の垂直流路7から水平流路8に直角に変化する空間9に、前記弁 座2を下に、且つ前記流出口3を水平流路8に面するよう配設され、小ねじ10 によりケース6に固定されるが、このとき図3に示すように弁制御用ケージ1の 中心と前記垂直ガイド4を結んだ線の延長上に制御流体の流出通路11があるよ うに配設する。As shown in FIGS. 1 and 2, the valve control cage 1 in which the ball valve 5 is installed as described above is provided in a space 9 that changes from a vertical flow path 7 in a case 6 to a horizontal flow path 8 at a right angle. It is arranged so that the valve seat 2 is on the lower side and the outlet port 3 faces the horizontal flow path 8, and is fixed to the case 6 by a machine screw 10. At this time, as shown in FIG. The control fluid outflow passage 11 is arranged on an extension of a line connecting the center of the cage 1 and the vertical guide 4.

【0008】 以上のような構成になる本考案の逆止弁装置では、正常圧の制御流体が垂直流 路7に流れるときは、弁座2に着座しているボール弁5を押し上げて流出口3か ら流出通路11に流れるが、この際制御流体は流出口3a、3bから均等量が流 出して水平流路8を経て流出通路11に流れるから、ボール弁5は上記のように 流れる制御流体に押されて、片寄ることなく垂直ガイド4の内面の巾広面に案内 され、流出口3a、3bのいずれにも引っかからず円滑に上昇することになる。 制御流体の圧力が減圧し、或いは逆流するときはボール弁5は弁制御用ケージ 1の前記垂直ガイド4及び内壁に案内されて弁座2に着座し、逆止弁を閉じる。In the check valve device of the present invention having the above-described structure, when the normal pressure control fluid flows in the vertical flow path 7, the ball valve 5 seated on the valve seat 2 is pushed up to the outlet port. 3 flows into the outflow passage 11, but at this time, the control fluid flows out from the outflow ports 3a, 3b in an equal amount and flows into the outflow passage 11 through the horizontal flow path 8, so that the ball valve 5 is controlled to flow as described above. The fluid is pushed by the fluid and guided to the wide inner surface of the vertical guide 4 without being biased, and is smoothly lifted without being caught by any of the outlets 3a and 3b. When the pressure of the control fluid is reduced or flows back, the ball valve 5 is guided by the vertical guide 4 and the inner wall of the valve control cage 1 and seated on the valve seat 2 to close the check valve.

【0009】[0009]

【考案の効果】[Effect of device]

本考案逆止弁装置は、垂直から水平へ直角に流路が変化する空間に、円筒の内 部下方に弁座を、また上方側面に流出口を各々形成するとともに、内径よりやや 小径で前記弁座に着座して流路を閉じるボール弁を内装した弁制御用ケージを設 置し、該ケージはその前記流出口のほぼ中央に垂直ガイドを形成し、該ガイドを 制御流体の流出通路に向けて配設したことを特徴とするので、殊に正常圧の制御 流体が垂直流路に流れてボール弁を押し上げるとき、該ボール弁は片寄ることな く垂直ガイドに案内され、流出口に引っかからず円滑に上昇せしめることができ 、また前記流出口も細かいスリットではないので、時間当りの流量を大きく且つ 流体抵抗を小さくできる効果もある。 The check valve device of the present invention has a valve seat formed in the lower part of the inner part of the cylinder and an outlet port in the upper part in the space where the flow path changes from vertical to horizontal at a right angle, and has a diameter slightly smaller than the inner diameter. A valve control cage, which is equipped with a ball valve that sits on the valve seat and closes the flow path, is installed in the cage, and a vertical guide is formed approximately at the center of the outlet, and the guide is used as the control fluid outflow passage. Since the control valve of the normal pressure flows into the vertical flow path to push up the ball valve, the ball valve is guided by the vertical guide without deviation and is prevented from being caught in the outflow port. It is possible to smoothly raise the flow rate, and since the outlet is not a fine slit, the flow rate per unit time can be increased and the fluid resistance can be reduced.

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

【図1】本考案逆止弁装置の縦断面図FIG. 1 is a longitudinal sectional view of a check valve device of the present invention.

【図2】図1のA方向矢視図FIG. 2 is a view in the direction of arrow A in FIG.

【図3】本考案逆止弁装置の平面図FIG. 3 is a plan view of the check valve device of the present invention.

【図4】本考案逆止弁装置の弁制御用ケージの正面図FIG. 4 is a front view of a valve control cage of the check valve device of the present invention.

【図5】本考案逆止弁装置の弁制御用ケージの部分的に
断面で示した平面図 1;弁制御用ケージ 2;弁座 3;流出口 4;垂直ガイド 5;ボール弁 6;ケース 7;垂直流路 8;水平流路 9;空間 10;小ねじ 11;流出通路。
FIG. 5 is a partial cross-sectional plan view of a valve control cage of the check valve device of the present invention 1; valve control cage 2; valve seat 3; outlet 4; vertical guide 5; ball valve 6; case 7; vertical flow path 8; horizontal flow path 9; space 10; machine screw 11; outflow passage.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 垂直から水平へ直角に流路が変化する空
間に、円筒の内部下方に弁座を、また上方側面に流出口
を各々形成するとともに、内径よりやや小径で前記弁座
に着座して流路を閉じるボール弁を内装した弁制御用ケ
ージを設置し、該ケージはその前記流出口のほぼ中央に
垂直ガイドを形成し、該ガイドを制御流体の流出通路に
向けて配設したことを特徴とする逆止弁装置。
1. A valve seat is formed in a lower part of a cylinder and an outflow port is formed in an upper side surface in a space where a flow path changes from a vertical direction to a horizontal direction at a right angle, and the valve seat is seated with a diameter slightly smaller than an inner diameter. A valve control cage having a ball valve installed therein to close the flow path is installed, and the cage has a vertical guide formed substantially at the center of the outlet, and the guide is arranged toward the outflow passage of the control fluid. A check valve device characterized by the above.
JP061139U 1993-09-30 1993-10-18 Check valve device Pending JPH0725374U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP061139U JPH0725374U (en) 1993-10-18 1993-10-18 Check valve device
KR1019940006387A KR100243893B1 (en) 1993-09-30 1994-03-29 Gear pump
US08/220,715 US5609474A (en) 1993-09-30 1994-03-31 Gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP061139U JPH0725374U (en) 1993-10-18 1993-10-18 Check valve device

Publications (1)

Publication Number Publication Date
JPH0725374U true JPH0725374U (en) 1995-05-12

Family

ID=13162468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP061139U Pending JPH0725374U (en) 1993-09-30 1993-10-18 Check valve device

Country Status (1)

Country Link
JP (1) JPH0725374U (en)

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