JP2505936Y2 - Ball valve with flow rate adjustment mechanism - Google Patents
Ball valve with flow rate adjustment mechanismInfo
- Publication number
- JP2505936Y2 JP2505936Y2 JP1991031401U JP3140191U JP2505936Y2 JP 2505936 Y2 JP2505936 Y2 JP 2505936Y2 JP 1991031401 U JP1991031401 U JP 1991031401U JP 3140191 U JP3140191 U JP 3140191U JP 2505936 Y2 JP2505936 Y2 JP 2505936Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball valve
- flow rate
- opening
- flow path
- rate adjusting
- 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.)
- Expired - Lifetime
Links
Landscapes
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Description
【考案の詳細な説明】[Detailed description of the device]
【０００１】[0001]
【産業上の利用分野】本考案は、流体流路中に取付けら
れる流量調整機構付ボール弁に関し、さらに詳しくは、
ボール弁の改善技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball valve with a flow rate adjusting mechanism mounted in a fluid passage, and more specifically,
Ball valve improvement technology.
【０００２】[0002]
【従来の技術】ボール弁は、全閉全開が容易で且つ短時
間に確実に行えるが、流量調整が難しいために、全閉
後、再度流路を開き全閉前の流量に再現するのに時間を
要していた。これを解決する技術として、例えば、バル
ブを直列に２台流路に取り付け、１台は流路の開閉専用
に、他の１台は流量調整専用に使用していた。2. Description of the Related Art A ball valve can be fully closed and fully opened easily and reliably in a short time. However, since it is difficult to adjust the flow rate, it is necessary to reopen the flow path after full closing and reproduce the flow rate before full closing. It took time. As a technique for solving this, for example, two valves are installed in series in a flow path, one is used only for opening and closing the flow path, and the other one is used for adjusting flow rate.
【０００３】[0003]
【考案が解決しようとする課題】従来のボール弁は、ボ
ール状の弁を９０°程度回転することにより、容易に全
閉全開が可能であるが、少しの回転でも開度が大きく変
化する為、一般の仕切弁・玉形弁などに比べると流量調
整が難しく、且つ、水撃が発生しやすいという問題があ
った。又、ボール弁は、仕切弁・玉形弁などと同様に、
弁部の開度で流量調整を行い長年使用していると、シー
ル部分にキャビテーションによるエロージョンが発生
し、シール部分の機能が低下することにより全閉時に漏
れが発生するという問題もあった。The conventional ball valve can be easily fully closed and fully opened by rotating the ball valve by about 90 °, but the opening greatly changes even with a slight rotation. However, compared to general sluice valves and globular valves, there is a problem that flow rate adjustment is difficult and water hammer is likely to occur. In addition, the ball valve, like the sluice valve and globular valve,
When the flow rate is adjusted by the opening degree of the valve section and the valve has been used for many years, there is a problem that erosion occurs due to cavitation in the seal portion and the function of the seal portion is deteriorated, resulting in leakage at the time of fully closing.
【０００４】本考案は、流量調整の容易化、及び、全閉
後再度流路を開いた時の流量再現性の確保、並びに、水
撃作用の防止、又エロージョンによるボール弁シール機
能の低下を防止して弁の長寿命化を図る流量調整機構付
ボール弁を提供することを課題とするものである。The present invention facilitates flow rate adjustment, ensures flow rate reproducibility when the flow path is reopened after full closure, prevents water hammer action, and reduces the ball valve sealing function due to erosion. It is an object of the present invention to provide a ball valve with a flow rate adjusting mechanism for preventing it and extending the life of the valve.
【０００５】[0005]
【課題を解決するための手段】本考案は、流路と交差す
る方向に該流路まで通じる孔が穿設されてなる流路開閉
用ボール弁と、前記孔内に挿入量自在に挿着された、前
記流路の開口を制限する流量調整部材とを備えた流量調
整機構付ボール弁において、前記流路開閉用ボール弁
の、前記流量調整部材が挿入される前記孔が丸孔であっ
て、前記流量調整部材が、前記流路開閉用ボール弁を回
動させるボール弁開閉軸の、前記流路を挟んだ反対側に
備えられるとともに該ボール弁開閉軸とは独立して固定
された、前記孔内に挿入された側の先端が半球形状を有
する棒状部材であることを特徴とする。SUMMARY OF THE INVENTION The present invention provides a flow path opening / closing ball valve having a hole communicating with the flow path in a direction intersecting with the flow path, and a ball valve for inserting and inserting the ball valve in the hole so as to be freely inserted. And a flow rate adjusting member for restricting the opening of the flow path, the ball valve for opening and closing the flow path.
The hole into which the flow rate adjusting member is inserted is a round hole.
The flow rate adjusting member is provided on the opposite side of the ball valve opening / closing shaft that rotates the flow path opening / closing ball valve with the flow path interposed therebetween, and is fixed independently of the ball valve opening / closing shaft. The distal end on the side inserted into the hole is a rod-shaped member having a hemispherical shape.
【０００６】[0006]
【作用】本考案のボール弁は上述のように構成されてい
るので、ボール弁自体の流路開閉機能と、流路の開口の
大きさを定める流量調整機能とが互いに独立となり、こ
れにより次のような作用がある。 （ａ）きめの細かい流量の調節ができる。 （ｂ）ボール弁のシ−ル部分での開度を変えることなく
流量調整部材のみで流量調整が可能となるので、エロー
ジョンが発生するのはボール弁のシ−ル機構部ではなく
なり、長年使用してもボール弁シ−ル機能の長期確保を
図ることができる。 （ｃ）ボール弁を急に開閉しても給水系への水撃作用が
発生しない範囲に流量を調整することが可能となる。Since the ball valve of the present invention is constructed as described above, the flow path opening / closing function of the ball valve itself and the flow rate adjusting function for determining the size of the opening of the flow path are independent of each other. There is an action like. (A) The flow rate can be finely adjusted. (B) Since the flow rate can be adjusted only by the flow rate adjusting member without changing the opening of the ball valve at the seal portion, the erosion does not occur at the ball valve seal mechanism portion, and it has been used for many years. Even so, the ball valve seal function can be secured for a long period of time. (C) It is possible to adjust the flow rate within a range where the water hammer effect on the water supply system does not occur even if the ball valve is suddenly opened and closed.
【０００７】また、本考案の流量調整部材は、棒状部材
であって、その棒状部材の、流路に挿入される側の先端
が半球状をなしているため、従来知られていた舌状の流
量調整部材と比べ乱流を発生させることが少なく、安定
した流れを得ることができる。Further, the flow rate adjusting member of the present invention is a rod-shaped member, and the tip of the rod-shaped member on the side to be inserted into the flow path has a hemispherical shape. Compared with the flow rate adjusting member, turbulent flow is less likely to occur, and a stable flow can be obtained.
【０００８】[0008]
【実施例】本考案の実施例を、図面を参照して説明す
る。図１に、本考案の一実施例を示す。流路を開閉する
流路開閉用ボール弁１２の上部に、この流路開閉用ボー
ル弁１２を回動させるボール弁開閉軸２４ａが備えられ
ており、ハンドル２２ａを操作することによりボール弁
開閉軸２４ａが回動し、それに伴ってボール弁１２が回
動し、流路が開閉される。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention. A ball valve opening / closing shaft 24a for rotating the flow path opening / closing ball valve 12 is provided above the flow path opening / closing ball valve 12 for opening / closing the flow path. The ball valve opening / closing shaft 24a is operated by operating the handle 22a. 24a rotates, the ball valve 12 rotates accordingly, and the flow path is opened and closed.
【０００９】また、このボール弁１２の下方には流量調
整棒１０ａが設けられている。この流量調整棒１０ａ
は、ハンドル２２ａを操作しボール弁開閉軸２４ａを介
してボール弁１２を回動させても回動しないような構造
になっている。すなわち、流量調整棒１０ａはボール弁
１２の回動とは独立している。流量調整棒１０ａは、固
定ナット１６ａを緩めておき流量調整棒１０ａを回動さ
せることによって、ネジ１８ａの作用によりボール弁１
２とは独立して上下に移動し、これにより流量を調整す
ることができる。なお、２８ａ及び４２ａは配管継手
部、３０ａはボール弁シール用ガスケット、４０ａはＯ
リングである。A flow rate adjusting rod 10a is provided below the ball valve 12. This flow rate adjusting rod 10a
Has a structure that does not rotate even if the ball valve 12 is rotated via the ball valve opening / closing shaft 24a by operating the handle 22a. That is, the flow rate adjusting rod 10a is independent of the rotation of the ball valve 12. In the flow rate adjusting rod 10a, by loosening the fixing nut 16a and rotating the flow rate adjusting rod 10a, the ball valve 1 is operated by the action of the screw 18a.
It moves up and down independently of 2, which allows the flow rate to be adjusted. 28a and 42a are pipe joint parts, 30a is a ball valve seal gasket, and 40a is O.
It is a ring.
【００１０】本実施例においては、ボール弁１２は、流
量調整棒１０ａによる流路の開度とは関係なく開閉が可
能である。また、この流量調整棒１０ａの、ボール弁１
２に挿入された側の先端は半球状をなしている。このた
め、流体がこの流路を通過する際の乱流の発生が防止な
いし低減され、安定した流れを得ることができる。In the present embodiment, the ball valve 12 can be opened and closed regardless of the opening of the flow passage by the flow rate adjusting rod 10a. In addition, the ball valve 1 of the flow rate adjusting rod 10a
The tip on the side inserted into 2 has a hemispherical shape. Therefore, the occurrence of turbulent flow when the fluid passes through this flow path is prevented or reduced, and a stable flow can be obtained.
【００１１】[0011]
【考案の効果】本考案は、上述のように構成されている
ので、次のような優れた効果を奏する。ボール弁には流
量調整棒を取付けることにより流量調整は、流量調整棒
で行うことが可能であり且つ、ボール弁を全閉全開で使
用すれば、全開時の、流量調整棒による流路の開度は常
に一定に確保出来る為、流路を開いた後の流量調整が不
要となる。従って、流量再現性がある。又、流量調整棒
を、ボール弁の中央部に取り付けることにより、ボール
弁のシール部分での開度を変える事なく流量調整が可能
となり、エロージョンが発生するのは、流量調整棒とボ
ール弁の中央部になるため、ボール弁シール機構を痛め
ることなく長期にわたりシール性を確保することがで
き、弁の長寿命化を図ることができる。Since the present invention is constructed as described above, it has the following excellent effects. The flow rate can be adjusted with the flow rate adjusting rod by attaching the flow rate adjusting rod to the ball valve, and if the ball valve is used with the ball valve fully closed and fully opened, the flow channel can be opened by the flow rate adjusting rod when fully opened. Since the degree can be always kept constant, there is no need to adjust the flow rate after opening the flow path. Therefore, there is flow rate reproducibility. Also, by mounting the flow rate adjusting rod in the center of the ball valve, the flow rate can be adjusted without changing the opening of the ball valve at the seal portion, and erosion is caused by the flow rate adjusting rod and the ball valve. Since it is located in the central portion, the sealing performance can be secured for a long period of time without damaging the ball valve sealing mechanism, and the life of the valve can be extended.
【００１２】又、流量調整棒により、ボール弁を急激に
開閉しても水撃作用が発生しない範囲に流量を調整する
ことが可能となる。さらに、流量調整棒の先端を半球状
にしたことにより、乱流の発生を防止ないし低減するこ
とが可能となる。Further, the flow rate adjusting rod makes it possible to adjust the flow rate within a range in which the water hammer action does not occur even if the ball valve is suddenly opened and closed. Further, by making the tip of the flow rate adjusting rod hemispherical, it becomes possible to prevent or reduce the occurrence of turbulence.
【図１】図１は本考案の一実施例の側面の断面図であ
る。FIG. 1 is a side sectional view of an embodiment of the present invention.
１０ａ 流量調整用棒 １２ 流路開閉用ボール弁 １６ａ 固定ナット １８ａ ネジ ２２ａ ボール弁開閉ハンドル ２４ａ ボール弁開閉軸 ２８ａ 配管継手部 ３０ａ ボール弁シール用ガスケット ４０ａ Ｏリング ４２ａ 配管継手部 10a Flow rate adjusting rod 12 Flow path opening / closing ball valve 16a Fixed nut 18a Screw 22a Ball valve opening / closing handle 24a Ball valve opening / closing shaft 28a Piping joint section 30a Ball valve sealing gasket 40a O ring 42a Piping joint section
Claims (1)
孔が穿設されてなる流路開閉用ボール弁（１２）と、前
記孔内に挿入量自在に挿着された、前記流路の開口を制
限する流量調整部材（１０ａ）とを備えた流量調整機構
付ボール弁において、前記流路開閉用ボール弁（１２）の、前記流量調整部材
（１０ａ）が挿入される前記孔が丸孔であって、 前記流量調整部材（１０ａ）が、前記流路開閉用ボール
弁（１２）を回動させるボール弁開閉軸（２４ａ）の、
前記流路を挟んだ反対側に備えられるとともに該ボール
弁開閉軸とは独立して固定された、前記孔内に挿入され
た側の先端が半球形状を有する棒状部材であることを特
徴とする流量調整機構付ボール弁。1. A flow path opening / closing ball valve (12) having a hole communicating with the flow path in a direction intersecting with the flow path, and the flow valve inserted into the hole in a freely insertable manner. A ball valve with a flow rate adjusting mechanism, comprising: a flow rate adjusting member (10a) for limiting an opening of a passage, wherein the flow rate adjusting member of the flow path opening / closing ball valve (12).
The hole into which (10a) is inserted is a round hole, and the flow rate adjusting member (10a) includes a ball valve opening / closing shaft (24a) that rotates the flow path opening / closing ball valve (12).
It is characterized in that it is a rod-shaped member provided on the opposite side across the flow path and fixed independently of the ball valve opening / closing shaft, and the tip on the side inserted into the hole has a hemispherical shape. Ball valve with flow rate adjustment mechanism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991031401U JP2505936Y2 (en) | 1990-12-03 | 1991-05-08 | Ball valve with flow rate adjustment mechanism |
| EP91119670A EP0489296A1 (en) | 1990-12-03 | 1991-11-18 | Ball valve assembly with flow regulating mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40152090 | 1990-12-03 | ||
| JP2-401520 | 1990-12-03 | ||
| JP1991031401U JP2505936Y2 (en) | 1990-12-03 | 1991-05-08 | Ball valve with flow rate adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0538472U JPH0538472U (en) | 1993-05-25 |
| JP2505936Y2 true JP2505936Y2 (en) | 1996-08-07 |
Family
ID=26369854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991031401U Expired - Lifetime JP2505936Y2 (en) | 1990-12-03 | 1991-05-08 | Ball valve with flow rate adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505936Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5220364B2 (en) * | 2007-08-06 | 2013-06-26 | 高砂熱学工業株式会社 | Compound valve |
| JP2014101988A (en) * | 2012-11-22 | 2014-06-05 | Kitz Corp | Flow rate adjustment type rotary valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3860032A (en) * | 1972-10-27 | 1975-01-14 | Chemetron Corp | Ball valve with flow control |
| JPS59132955U (en) * | 1983-02-25 | 1984-09-06 | 株式会社川電機器製作所 | valve |
| JPS6052472U (en) * | 1983-09-20 | 1985-04-12 | 日邦バルブ工業株式会社 | Ball valve type water stop valve with adjustable flow rate |
| JPH03157571A (en) * | 1989-11-15 | 1991-07-05 | Maezawa Kiyuusou Kogyo Kk | Ball stop cock |
-
1991
- 1991-05-08 JP JP1991031401U patent/JP2505936Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538472U (en) | 1993-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960319 |