JPH11173430A - Fluid shut-off valve - Google Patents
Fluid shut-off valveInfo
- Publication number
- JPH11173430A JPH11173430A JP36203497A JP36203497A JPH11173430A JP H11173430 A JPH11173430 A JP H11173430A JP 36203497 A JP36203497 A JP 36203497A JP 36203497 A JP36203497 A JP 36203497A JP H11173430 A JPH11173430 A JP H11173430A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- lead shaft
- tubular body
- cylindrical body
- fluid
- 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.)
- Granted
Links
Landscapes
- Lift Valve (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ガスメータ等の
ガス機器や水道配管機器や空調機器等に使用される流体
遮断弁に関する。詳細には、リードシャフトを筒状体に
挿入してリードシャフトの雄ねじ部と筒状体の雌ねじ部
とを螺合させ、これらリードシャフトと筒状体とをモー
タやソレノイド等の電動アクチュエータにより相対的に
螺進させて、弁体を開閉動作させる流体遮断弁に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid shutoff valve used for gas equipment such as a gas meter, water supply piping equipment, air conditioning equipment and the like. In detail, the lead shaft is inserted into the tubular body, the male thread of the lead shaft and the female thread of the tubular body are screwed together, and the lead shaft and the tubular body are relatively moved by an electric actuator such as a motor or a solenoid. The present invention relates to a fluid shutoff valve that is screwed forward and opens and closes a valve body.
【０００２】[0002]
【従来の技術】この種の流体遮断弁には、次の２つのタ
イプがある。 （Ａ）リードシャフトが電動アクチュエータ側、筒状体
が弁体側に設けられ、電動アクチュエータによりリード
シャフトが回転されて筒状体が弁体と一体に移動される
タイプ（たとえば、特開平５−７１６５５号公報参
照）。2. Description of the Related Art There are the following two types of such fluid shutoff valves. (A) A type in which the lead shaft is provided on the electric actuator side and the tubular body is provided on the valve body side, and the lead shaft is rotated by the electric actuator to move the tubular body integrally with the valve body (for example, Japanese Patent Laid-Open No. 5-71655). Reference).
【０００３】（Ｂ）また、上記とは逆に、リードシャフ
トが弁体側、筒状体が電動アクチュエータ側に設けら
れ、電動アクチュエータにより筒状体が回転されてリー
ドシャフトが弁体と一体に移動されるタイプ（たとえ
ば、特開平６−１８５６５７号公報参照）。(B) Conversely, the lead shaft is provided on the valve body side and the tubular body is provided on the electric actuator side, and the tubular body is rotated by the electric actuator to move the lead shaft integrally with the valve body. (See, for example, JP-A-6-185657).
【０００４】図３は、上記（Ａ）のタイプの従来のガス
メータ用双方向遮断弁を示す。この遮断弁は、ガス流路
１の途中の流入側１ａと流出側１ｂとが直角に交わると
ころに設けられ、弁室２内の円盤状の弁体３を、弁室２
の外側からモータやソレノイド等の電動アクチュエータ
５にて往復動させて、流出側１ｂに設けられた弁座６の
弁口７を開閉する。電動アクチュエータ５の正逆回転を
弁体３の往復動に変換するために、電動アクチュエータ
５にて回転されるリードシャフト８を、弁体３の中央に
突設された筒状体９に挿入してリードシャフト８の雄ね
じ部８ａと筒状体９の雌ねじ部９ａとを螺合させてあ
る。FIG. 3 shows a conventional two-way shut-off valve for a gas meter of the type (A). This shut-off valve is provided at a position where the inflow side 1a and the outflow side 1b intersect at right angles in the middle of the gas flow path 1, and connects the disc-shaped valve element 3 in the valve chamber 2 to the valve chamber 2
Is reciprocated from outside by an electric actuator 5 such as a motor or a solenoid to open and close a valve port 7 of a valve seat 6 provided on the outflow side 1b. In order to convert the forward / reverse rotation of the electric actuator 5 into a reciprocating motion of the valve body 3, a lead shaft 8 rotated by the electric actuator 5 is inserted into a cylindrical body 9 protruding from the center of the valve body 3. The male screw 8a of the lead shaft 8 and the female screw 9a of the tubular body 9 are screwed together.
【０００５】[0005]
【発明が解決しようとする課題】しかし、従来は、リー
ドシャフト８の雄ねじ部８ａ、およびそれと筒状体９の
雌ねじ部９ａとの螺合部分が、遮断時でも流路内（弁室
２内）で剥き出しになるため、螺合部分に異物が入り込
んで動作不良を起こす問題があった。このようなこと
は、上記特開平５−７１６５５号公報に開示の遮断弁の
みならず、特開平６−１８５６５７号公報に開示の遮断
弁でも同様であった。Conventionally, however, the male thread 8a of the lead shaft 8 and the threaded portion between the male thread 8a of the lead shaft 8 and the female thread 9a of the cylindrical body 9 remain in the flow path (in the valve chamber 2) even when the block is shut off. ), There is a problem that foreign matter enters the threaded portion and causes malfunction. The same is true not only for the shut-off valve disclosed in Japanese Patent Application Laid-Open No. Hei 5-71655, but also for the shut-off valve disclosed in Japanese Patent Application Laid-Open No. Hei 6-185657.
【０００６】この発明の目的は、リードシャフトの雄ね
じ部、およびそれと筒状体の雌ねじ部との螺合部分が、
流路内で常に剥き出しにならないようにして、異物の侵
入による動作不良を簡単に防止できるようにすることに
ある。An object of the present invention is to provide a male screw part of a lead shaft and a threaded part of the male screw part and a female screw part of a cylindrical body,
An object of the present invention is to make it possible to easily prevent a malfunction due to the invasion of a foreign substance by preventing the liquid from being always exposed in the flow path.
【０００７】[0007]
【課題を解決するための手段】この発明は、リードシャ
フト８を筒状体９に挿入してリードシャフト８の雄ねじ
部８ａと筒状体９の雌ねじ部９ａとを螺合させ、これら
リードシャフト８と筒状体９とをモータやソレノイド等
の電動アクチュエータ５により相対的に螺進させて、弁
体３を開閉動作させる流体遮断弁において、筒状体９の
開口端部をリードシャフト８の雄ねじ部８ａとともに内
包して異物侵入を防止する保護部材１１を備えたことを
特徴とする。According to the present invention, a lead shaft 8 is inserted into a tubular body 9 and a male thread 8a of the lead shaft 8 and a female thread 9a of the tubular body 9 are screwed together. 8 and the cylindrical body 9 are relatively screwed by an electric actuator 5 such as a motor or a solenoid to open and close the valve body 3, and the opening end of the cylindrical body 9 is connected to the lead shaft 8. It is characterized by including a protective member 11 that is included together with the male screw portion 8a to prevent foreign matter from entering.
【０００８】リードシャフト８が電動アクチュエータ５
側、筒状体９が弁体３側に設けられ、電動アクチュエー
タ５によりリードシャフト８が回転されて筒状体９が弁
体３と一体に移動されるようになっているタイプの流体
遮断弁の場合には、リードシャフト８の軸受部分から筒
状体９の開口端部までを保護部材１１で内包する構造と
する。この場合、筒状体９と保護部材１１とが同心円状
の円筒形で、筒状体９が保護部材１１に摺接しながら弁
体３と一体に移動する構造にすることが好ましい。ま
た、保護部材１１をリードシャフト８の軸受部材１０と
一体に設けると、部品点数の増加無しに、保護できる。The lead shaft 8 is electrically driven
A fluid shut-off valve of a type in which a tubular body 9 is provided on the valve body 3 side, and the lead shaft 8 is rotated by the electric actuator 5 to move the tubular body 9 integrally with the valve body 3. In this case, the structure from the bearing portion of the lead shaft 8 to the opening end of the tubular body 9 is included in the protective member 11. In this case, it is preferable that the tubular body 9 and the protection member 11 are concentric cylinders, and the tubular body 9 moves integrally with the valve body 3 while slidingly contacting the protection member 11. When the protection member 11 is provided integrally with the bearing member 10 of the lead shaft 8, the protection can be performed without increasing the number of parts.
【０００９】筒状体９が、リードシャフト８の雄ねじ部
８ａと筒状体９の雌ねじ部９ａとの螺合部分よりも延出
する延出部９ｂを有し、その延出部９ｂの開口端部が保
護部材１１に内包される構造とすれば、二重に保護でき
る。The cylindrical body 9 has an extension 9b extending beyond a threaded portion between the male thread 8a of the lead shaft 8 and the female thread 9a of the cylinder 9, and an opening of the extension 9b. With a structure in which the end is included in the protection member 11, double protection can be achieved.
【００１０】[0010]
【発明の実施の形態】次に、この発明の実施の形態を図
面に基づいて詳述する。Next, embodiments of the present invention will be described in detail with reference to the drawings.
【００１１】図１に、この発明による流体遮断弁の一実
施形態を示す。この遮断弁は、ガス流路１の途中の流入
側１ａと流出側１ｂとが直角に交わるところに設けら
れ、弁室２内の円盤状の弁体３を、弁室２の外側からモ
ータやソレノイド等の電動アクチュエータ５にて往復動
させて、流出側１ｂに設けられた弁座６の弁口７を開閉
する。電動アクチュエータ５の正逆回転を弁体３の往復
動に変換するために、電動アクチュエータ５にて回転さ
れるリードシャフト８を、弁体３の中央に突設された筒
状体９に挿入してリードシャフト８の雄ねじ部８ａと筒
状体９の雌ねじ部９ａとを螺合させてある。このような
構造については図３の従来例と同じであるが、図１の実
施形態では次の構造が追加されている。FIG. 1 shows an embodiment of a fluid shut-off valve according to the present invention. This shut-off valve is provided at a point where the inflow side 1a and the outflow side 1b intersect at right angles in the middle of the gas flow path 1. The valve 7 is reciprocated by an electric actuator 5 such as a solenoid to open and close a valve port 7 of a valve seat 6 provided on the outflow side 1b. In order to convert the forward / reverse rotation of the electric actuator 5 into a reciprocating motion of the valve body 3, a lead shaft 8 rotated by the electric actuator 5 is inserted into a cylindrical body 9 protruding from the center of the valve body 3. The male screw 8a of the lead shaft 8 and the female screw 9a of the tubular body 9 are screwed together. Such a structure is the same as the conventional example of FIG. 3, but the following structure is added in the embodiment of FIG.
【００１２】リードシャフト８を弁室２内で軸受けして
いる軸受部材１０に、その軸受部分から筒状体９の開口
端部までを内包する保護部材１１が一体に突設されてい
る。この保護部材１１は、筒状体９と同心円状の円筒形
となっており、電動アクチュエータ５によりリードシャ
フト８が正逆回転すると、筒状体９は、保護部材１１の
内周面に摺接しながら弁体３と一体に往復動するように
なっている。A bearing member 10 bearing the lead shaft 8 in the valve chamber 2 is integrally provided with a protective member 11 which covers from the bearing portion to the opening end of the tubular body 9. The protection member 11 has a cylindrical shape concentric with the cylindrical member 9. When the lead shaft 8 rotates forward and reverse by the electric actuator 5, the cylindrical member 9 comes into sliding contact with the inner peripheral surface of the protection member 11. While reciprocating integrally with the valve body 3.
【００１３】このような構造によると、リードシャフト
８の雄ねじ部８ａ、およびそれと筒状体９の雌ねじ部９
ａとの螺合部分は、保護部材１１により保護されて流路
内で常に剥き出しにならないので、異物の侵入が防止さ
れる。According to such a structure, the male screw portion 8a of the lead shaft 8 and the female screw portion 9 of the tubular body 9 are formed.
Since the screwed portion with a is protected by the protection member 11 and is not always exposed in the flow path, entry of foreign matter is prevented.
【００１４】図２は、この発明の変形例で、弁体３に突
設された筒状体９が、リードシャフト８の雄ねじ部８ａ
と筒状体９の雌ねじ部９との螺合部分よりも延出する延
出部９ｂを有し、その延出部９ｂの開口端部までが、リ
ードシャフト８とともに保護部材１１に内包されてい
る。FIG. 2 shows a modification of the present invention, in which a cylindrical body 9 protruding from a valve body 3 is provided with a male thread 8 a of a lead shaft 8.
And an extension portion 9b extending beyond a threaded portion of the cylindrical member 9 and the female screw portion 9, and up to the opening end of the extension portion 9b is included in the protection member 11 together with the lead shaft 8. I have.
【００１５】このような構造によると、電動アクチュエ
ータ５によりリードシャフト８が正逆回転すると、筒状
体９が、その外周面を保護部材１１の内周面に摺接させ
ると同時に、内周面をリードシャフト８に摺接させなが
ら弁体３と一体に往復動するので、リードシャフト８の
雄ねじ部８ａ、およびそれと筒状体９の雌ねじ部９ａと
の螺合部分を二重に保護できる。According to this structure, when the electric actuator 5 rotates the lead shaft 8 in the forward and reverse directions, the cylindrical body 9 slides the outer peripheral surface thereof against the inner peripheral surface of the protection member 11 and simultaneously rotates the inner peripheral surface. Is reciprocated integrally with the valve body 3 while sliding on the lead shaft 8, so that the male screw portion 8 a of the lead shaft 8 and the threaded portion between the male screw portion 8 a of the lead shaft 8 and the female screw portion 9 a of the tubular body 9 can be double protected.
【００１６】なお、図１および図２の例は、リードシャ
フト８が電動アクチュエータ５側、筒状体９が弁体３側
に設けられ、電動アクチュエータ５によりリードシャフ
ト８が回転されて筒状体９が弁体３と一体に移動される
タイプの場合であるが、この発明は、リードシャフト８
が弁体３側、筒状体９が電動アクチュエータ５側に設け
られ、電動アクチュエータ５により筒状体９が回転され
てリードシャフト８が弁体３と一体に移動されるタイプ
の流体遮断弁に対しても同様に適用できる。1 and 2, the lead shaft 8 is provided on the electric actuator 5 side, and the tubular body 9 is provided on the valve body 3 side. 9 is a type in which the lead shaft 8 is moved integrally with the valve body 3.
Is provided on the valve body 3 side and the cylindrical body 9 is provided on the electric actuator 5 side, and the cylindrical body 9 is rotated by the electric actuator 5 so that the lead shaft 8 is moved integrally with the valve body 3. The same can be applied to this.
【００１７】[0017]
【発明の効果】以上説明したように、請求項１ないし３
に記載の発明によれば、筒状体の開口端部をリードシャ
フトの雄ねじ部とともに保護部材で内包して、リードシ
ャフトの雄ねじ部、およびそれと筒状体の雌ねじ部との
螺合部分が常に流路内で剥き出しにならないようにした
ので、これらの部分への異物の侵入による動作不良を簡
単に防止できる。As described above, claims 1 to 3 are described.
According to the invention described in the above, the opening end of the cylindrical body is included in the protective member together with the male thread of the lead shaft, and the male thread of the lead shaft, and the threaded portion between the male thread of the lead shaft and the female thread of the cylindrical body are always Since it is prevented from being exposed in the flow channel, it is possible to easily prevent a malfunction due to invasion of foreign matter into these portions.
【００１８】請求項４に記載の発明によれば、保護部材
をリードシャフトの軸受部材と一体に設けたので、部品
点数の増加無しに、保護できる。According to the fourth aspect of the present invention, since the protection member is provided integrally with the bearing member of the lead shaft, protection can be performed without increasing the number of parts.
【００１９】請求項５に記載の発明によれば、筒状体
が、リードシャフトの雄ねじ部と筒状体の雌ねじ部との
螺合部分よりも延出する延出部を有し、その延出部の開
口端部が保護部材に内包される構造としたので、リード
シャフトの雄ねじ部、およびそれと筒状体の雌ねじ部と
の螺合部分を二重に保護できる。According to the fifth aspect of the present invention, the tubular body has an extending portion that extends beyond a threaded portion between the male thread portion of the lead shaft and the female thread portion of the tubular body. Since the opening end of the protruding portion is included in the protective member, the male screw portion of the lead shaft and the threaded portion of the male screw portion of the lead shaft and the female screw portion of the cylindrical body can be double protected.
【図１】この発明の一実施形態を示す流体遮断面の部分
断面図である。FIG. 1 is a partial sectional view of a fluid blocking surface showing one embodiment of the present invention.
【図２】この発明の変形例を示す流体遮断面の部分断面
図である。FIG. 2 is a partial sectional view of a fluid blocking surface showing a modification of the present invention.
【図３】従来例を示す流体遮断面の部分断面図である。FIG. 3 is a partial sectional view of a fluid blocking surface showing a conventional example.
１ ガス流路 １ａ ガス流路の流入側 １ｂ ガス流路の流出側 ２ 弁室 ３ 弁体 ５ 電動アクチュエータ ６ 弁座 ７ 弁口 ８ リードシャフト ８ａ リードシャフトの雄ねじ部 ９ 筒状体 ９ａ 筒状体の雌ねじ部 ９ｂ 筒状体の延出部 １０ 軸受部材 １１ 保護部材 DESCRIPTION OF SYMBOLS 1 Gas flow path 1a Inflow side of gas flow path 1b Outflow side of gas flow path 2 Valve chamber 3 Valve body 5 Electric actuator 6 Valve seat 7 Valve port 8 Lead shaft 8a Male screw part of lead shaft 9 Cylindrical body 9a Cylindrical body Female thread portion 9b cylindrical portion extending portion 10 bearing member 11 protective member
Claims (5)
ドシャフトの雄ねじ部と筒状体の雌ねじ部とを螺合さ
せ、これらリードシャフトと筒状体とをモータやソレノ
イド等の電動アクチュエータにより相対的に螺進させ
て、弁体を開閉動作させる流体遮断弁において、前記筒
状体の開口端部を前記リードシャフトの雄ねじ部ととも
に内包して異物侵入を防止する保護部材を備えたことを
特徴とする、流体遮断弁。1. A lead shaft is inserted into a tubular body, and a male thread of the lead shaft and a female thread of the tubular body are screwed together, and the lead shaft and the tubular body are connected by an electric actuator such as a motor or a solenoid. A fluid shut-off valve that is relatively screwed and opens and closes a valve body, comprising a protective member that includes an open end of the cylindrical body together with a male screw portion of the lead shaft to prevent foreign matter from entering. Characterized by a fluid shutoff valve.
エータ側に設けられ、前記保護部材が、前記リードシャ
フトの軸受部分から前記筒状体の開口端部までを内包
し、また前記筒状体が前記弁体側に設けられ、前記電動
アクチュエータにより前記リードシャフトが回転されて
前記筒状体が前記弁体と一体に移動されるようになって
いる、請求項１に記載の流体遮断弁。2. The lead shaft is provided on the electric actuator side, the protection member includes a portion from a bearing portion of the lead shaft to an opening end of the tubular body, and the tubular body includes the valve. The fluid shutoff valve according to claim 1, wherein the fluid shutoff valve is provided on a body side, and the tubular body is moved integrally with the valve body by rotating the lead shaft by the electric actuator.
の円筒形で、前記筒状体が前記保護部材に摺接しながら
前記弁体と一体に移動する、請求項２、または３に記載
の流体遮断弁。3. The method according to claim 2, wherein the tubular body and the protection member are concentric cylinders, and the tubular body moves integrally with the valve body while slidingly contacting the protection member. The fluid shut-off valve according to any of the preceding claims.
軸受部材に一体に設けられている、請求項２、または３
に記載の流体遮断弁。4. The lead member according to claim 2, wherein the protection member is provided integrally with a bearing member of the lead shaft.
3. The fluid shut-off valve according to claim 1.
ねじ部と前記筒状体の雌ねじ部との螺合部分よりも延出
する延出部を有し、その延出部の開口端部が前記保護部
材に内包されている、請求項２、３、または４に記載の
流体遮断弁。5. The cylindrical body has an extension that extends beyond a threaded portion between a male thread of the lead shaft and a female thread of the cylinder, and an open end of the extension. 5. The fluid shut-off valve according to claim 2, wherein the fluid shut-off valve is included in the protection member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36203497A JP4082630B2 (en) | 1997-12-11 | 1997-12-11 | Fluid shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36203497A JP4082630B2 (en) | 1997-12-11 | 1997-12-11 | Fluid shut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11173430A true JPH11173430A (en) | 1999-06-29 |
| JP4082630B2 JP4082630B2 (en) | 2008-04-30 |
Family
ID=18475690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36203497A Expired - Fee Related JP4082630B2 (en) | 1997-12-11 | 1997-12-11 | Fluid shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4082630B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046641A (en) * | 2004-06-12 | 2006-02-16 | Borgwarner Inc | Valve having countermeasure for contamination |
| EP2843277A1 (en) * | 2013-09-02 | 2015-03-04 | Johnson Electric S.A. | Gas shut-off valve |
| CN105258748A (en) * | 2015-10-30 | 2016-01-20 | 成都兴联宜科技有限公司 | Built-in valve of photoelectric-direct-reading wired remote transmission valve-controlled gas meter and method for forced closing of valve |
-
1997
- 1997-12-11 JP JP36203497A patent/JP4082630B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046641A (en) * | 2004-06-12 | 2006-02-16 | Borgwarner Inc | Valve having countermeasure for contamination |
| EP2843277A1 (en) * | 2013-09-02 | 2015-03-04 | Johnson Electric S.A. | Gas shut-off valve |
| US9784382B2 (en) | 2013-09-02 | 2017-10-10 | Johnson Electric S.A. | Gas shut-off valve |
| CN105258748A (en) * | 2015-10-30 | 2016-01-20 | 成都兴联宜科技有限公司 | Built-in valve of photoelectric-direct-reading wired remote transmission valve-controlled gas meter and method for forced closing of valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4082630B2 (en) | 2008-04-30 |
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