JP2000193128A - Actuator for valve - Google Patents

Actuator for valve

Info

Publication number
JP2000193128A
JP2000193128A JP10376407A JP37640798A JP2000193128A JP 2000193128 A JP2000193128 A JP 2000193128A JP 10376407 A JP10376407 A JP 10376407A JP 37640798 A JP37640798 A JP 37640798A JP 2000193128 A JP2000193128 A JP 2000193128A
Authority
JP
Japan
Prior art keywords
valve
output shaft
motor
opening
casing
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
Application number
JP10376407A
Other languages
Japanese (ja)
Other versions
JP3488893B2 (en
Inventor
Makoto Uchiyama
眞 内山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECHNO BATSUGU KK
Kawaden Co Ltd
Original Assignee
TECHNO BATSUGU KK
Kawaden Co Ltd
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 TECHNO BATSUGU KK, Kawaden Co Ltd filed Critical TECHNO BATSUGU KK
Priority to JP37640798A priority Critical patent/JP3488893B2/en
Publication of JP2000193128A publication Critical patent/JP2000193128A/en
Application granted granted Critical
Publication of JP3488893B2 publication Critical patent/JP3488893B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

PROBLEM TO BE SOLVED: To keep a valve in an opened state even though a motor is not in a normal energization state, automatically close the valve in the service interruption and the like, and prevent an unexpected accident by using an opening and closing display board displaying the opening and the closing state of the valve, as an output shaft locking member. SOLUTION: When a motor 3 is driven in the closing of a valve V, an output shaft 2 is rotated through the deceleration gears 31, 32, a valve element starts its opening, and simultaneously a power spring 4 starts its winding-up. When the deceleration gear 32 is rotated by 90 deg. and contacted with a stopper, its rotation is stopped and the valve V is fully opened. When the energization to the motor 3 is cut in this state, the valve V is completely closed by the restoring force of the power spring 4 through the output shaft 2. On this occasion, the valve V is locked in an opened state through an opening and closing display board 5, when the opening and closing display board 5 is pressed against a spring 6 in the full-opened state of the valve V, and the projections 52, 52 are fitted in the recessed parts 11, 11 of a casing 1 to cut the power supply to the motor 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、モ−タの駆動によ
り出力軸を回転させてバルブを開放するときに、ゼンマ
イバネを巻き、モ−タへの通電を断ったときにゼンマイ
バネの復元力で出力軸をバルブ閉鎖方向に回転させてバ
ルブを開閉させるようにしたバルブ用アクチュエ−タに
関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring for winding a spring when an output shaft is rotated by driving a motor to open a valve, and a restoring force of the spring when power to the motor is cut off. The present invention relates to a valve actuator in which an output shaft is rotated in a valve closing direction to open and close a valve.

【0002】[0002]

【従来の技術】従来から、ケーシング内にバルブの駆動
に関わる出力軸並びに同出力軸をバルブが開放する方向
に回転させるモ−タを設け、バルブの開放動作時に巻か
れ、復元力が蓄えられるゼンマイバネを設けたクラッチ
を使用しない簡易型のバルブ用アクチュエータなるもの
はあった。
2. Description of the Related Art Conventionally, an output shaft for driving a valve and a motor for rotating the output shaft in a direction in which the valve is opened are provided in a casing, and the motor is wound when the valve is opened to store a restoring force. There has been a simple valve actuator that does not use a clutch provided with a mainspring.

【0003】[0003]

【発明が解決しようとする課題】従来のこの種の簡易型
のバルブ用アクチュエータにあっては、バルブを開放す
るときにはモータの駆動力を利用し、バルブを閉鎖する
ときにはゼンマイバネの復元力を利用するようにしたも
のであったが、バルブを開放状態に保持するためつまり
出力軸をロックしておくためには、モ−タの励磁コイル
に常時通電しておかなければならなかった。
In this type of conventional simple valve actuator, when the valve is opened, the driving force of the motor is used, and when the valve is closed, the restoring force of the mainspring is used. However, in order to keep the valve open, that is, to keep the output shaft locked, the excitation coil of the motor must be constantly energized.

【0004】この種のバルブ用アクチュエータに使用さ
れるモータは、ロ−タの回転が停止している状態で通電
されていても励磁コイルが焼損するようなことのないイ
ンピ−ダンス型のモ−タであるから、電気系統が正常に
作動している限り何ら問題はないが、バルブを開放状態
に保持しておかなければならないときに停電等の事故が
発生したときは、モータによる出力軸のロックが解除さ
れ、自動的にバルブが閉鎖してしまい、不測の事故を招
く虞があり、また、バルブを開放状態に保持している間
は常時励磁コイルに通電しておく必要があるため、不必
要な電力を消費するという問題点があった。
The motor used in this type of valve actuator is an impedance type motor in which the exciting coil does not burn out even when the rotor is stopped and the power is supplied. There is no problem as long as the electric system is operating normally.However, if an accident such as a power failure occurs when the valve must be kept open, Since the lock is released and the valve automatically closes, an unexpected accident may occur.Also, it is necessary to keep the excitation coil energized while the valve is kept open. There is a problem that unnecessary power is consumed.

【0005】[0005]

【発明の目的】本発明は、上記従来技術の問題点を解消
するために、バルブを開放状態に保持するときには手動
で出力軸をロックするようにして停電等の電気系統の事
故が発生しても安全で且つ経済的なバルブ用アクチュエ
−タを提供することを目的とするものである。
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art by manually locking the output shaft when the valve is kept open to prevent an electric system accident such as a power failure. It is another object of the present invention to provide a safe and economical valve actuator.

【0006】[0006]

【課題を解決するための手段】本発明に係るバルブ用ア
クチュエ−タは、ケーシング内にバルブの駆動に関わる
出力軸並びに同出力軸をバルブが開放する方向に回転さ
せるモ−タを設け、バルブの開放動作時に巻かれ、復元
力が蓄えられるゼンマイバネを設けたバルブ用アクチュ
エータにおいて、ケーシングから突出する前記出力軸の
端部にスプリングを介して出力軸に沿って摺動し得るバ
ルブの開閉表示板を設け、同開閉表示板のケーシングに
対向する面側に突起を形成すると共に、ケーシングの一
部に前記突起が嵌合する突起の径よりも僅かに大きい径
の凹部を形成し、バルブの開放時に前記開閉表示板をケ
ーシング側に押して開閉表示板の突起をケーシングの前
記凹部に嵌合させて出力軸のバルブ閉鎖方向への回転を
阻止するようにしたことを特徴とするものである。
An actuator for a valve according to the present invention is provided with an output shaft for driving the valve in a casing and a motor for rotating the output shaft in a direction in which the valve is opened. In a valve actuator provided with a mainspring that is wound at the time of the opening operation and stores a restoring force, a valve opening / closing display plate that can slide along an output shaft via a spring at an end of the output shaft protruding from a casing via a spring. A projection is formed on the surface of the opening / closing display panel facing the casing, and a recess having a diameter slightly larger than the diameter of the projection fitted with the projection is formed in a part of the casing to open the valve. Sometimes, the open / close display plate is pushed toward the casing so that the protrusion of the open / close display plate is fitted into the recess of the casing so as to prevent the output shaft from rotating in the valve closing direction. It is characterized in.

【0007】[0007]

【発明の作用】開閉表示板の突起をケ−シングの凹部の
側壁に係合させて出力軸のバルブ閉鎖方向への回転を阻
止する。
The projection of the open / close display plate is engaged with the side wall of the concave portion of the casing to prevent the output shaft from rotating in the valve closing direction.

【0008】[0008]

【発明の実施の形態】本発明アクチュエ−タの実施の形
態を図面について具体的に説明する。図1は、本発明ア
クチュエ−タの平面図、図2は、図1のA−A線におけ
る縦断側面図、図3は、出力軸ロック状態の同縦断側面
図、図4は、出力軸の駆動機構を表す概略平面図であ
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the actuator of the present invention will be specifically described with reference to the drawings. 1 is a plan view of the actuator of the present invention, FIG. 2 is a vertical sectional side view taken along the line AA of FIG. 1, FIG. 3 is a vertical sectional side view of the output shaft locked state, and FIG. It is a schematic plan view showing a drive mechanism.

【0009】1は、ケーシング、2は、同ケーシング1
内にバルブVの弁体の回転軸に連結される出力軸、3
は、同出力軸2を減速用ギヤ31、32を介して一定方
向に回転させてバルブAを開放するためのモ−タ、4
は、モ−タ3のバルブ開放方向への回転により巻かれ、
復元力で出力軸2を逆回転させてバルブAを閉鎖させる
出力軸2に巻かれたゼンマイバネであって、これら部材
によりアクチュエータが構成されている。
1 is a casing, 2 is a casing 1
An output shaft connected to the rotation shaft of the valve body of the valve V;
Are motors for rotating the output shaft 2 in a fixed direction via reduction gears 31 and 32 to open the valve A;
Is wound by rotation of the motor 3 in the valve opening direction,
A spring is wound around the output shaft 2 for closing the valve A by rotating the output shaft 2 in reverse by the restoring force, and these members constitute an actuator.

【0010】尚、出力軸2に固着の減速ギヤ32は図4
のように扇形をしており、ケ−シング1の一部に固着さ
れるストッパ−3a、3bによって90°の範囲で回転
できるようになっている。
The reduction gear 32 fixed to the output shaft 2 is shown in FIG.
The stoppers 3a and 3b are fixed to a part of the casing 1 so as to be rotatable within a range of 90 degrees.

【0011】5は、ケ−シング1から上方に突出してい
る前記出力軸2の上端からスプリング6を介して上下摺
動自在となるように中央の孔51が嵌合される開閉表示
板で、出力軸2の上端から抜け落ちないようにリテイナ
−で止められ、且つ,手で押し下げたときに出力軸2の
上端で手を傷めないように保護キャップ51が一体的に
被せられている。
Reference numeral 5 denotes an open / close display plate into which a central hole 51 is fitted so as to be slidable up and down via a spring 6 from an upper end of the output shaft 2 projecting upward from the casing 1. The upper end of the output shaft 2 is stopped by a retainer so as not to fall off, and a protective cap 51 is integrally covered with the upper end of the output shaft 2 so as not to hurt the hand when pressed down by hand.

【0012】開閉表示板5の下面には下向きの突起5
2、52が埋め込まれており、開閉表示板5をスプリン
グ6に抗して押し下げたときに、この突起52、52の
下端がケ−シング1上面の肉厚部に形成された凹部1
1、11に嵌合するようになっている。
A downward projection 5 is provided on the lower surface of the open / close display panel 5.
When the open / close display panel 5 is pressed down against the spring 6, the lower ends of the projections 52, 52 are formed in the thick portion of the upper surface of the casing 1.
1 and 11 are fitted.

【0013】前記凹部11、11は、開閉表示板5の突
起52、52の径よりもやや大きい径に形成され、バル
ブVが全開放したときの突起52、52の中心とその凹
部11、11の中心が一致する位置に形成されている。
The recesses 11, 11 are formed to have diameters slightly larger than the diameters of the projections 52, 52 of the open / close display panel 5, and the centers of the projections 52, 52 when the valve V is fully opened and the recesses 11, 11 thereof. Are formed at positions where the centers of the.

【0014】次に、本発明の上記構成に従い、図示する
実施例について本発明アクチェ−タの作動を説明する。
Next, the operation of the actuator of the present invention will be described with reference to the illustrated embodiment in accordance with the above-described structure of the present invention.

【0015】図2のバルブVの閉鎖状態において、モ−
タ3に通電してモ−タ3を駆動させると、減速用ギヤ3
1、32を介して出力軸2が回転してバルブVの弁体が
開放し始めると同時にゼンマイバネ4が巻かれ始める。
In the closed state of the valve V shown in FIG.
When the motor 3 is energized to drive the motor 3, the reduction gear 3
At the same time as the output shaft 2 is rotated via 1 and 32 to open the valve body of the valve V, the mainspring 4 starts to wind.

【0016】減速ギヤ32が90°回転したところでス
トッパ−3aに当接して回転が停止し、バルブVは全開
放状態となる。
When the reduction gear 32 rotates by 90 degrees, it comes into contact with the stopper -3a to stop the rotation, and the valve V is fully opened.

【0017】このときは未だモ−タ3には通電されてい
るので、この全開放状態は保持されている。
At this time, since the motor 3 is still energized, this fully open state is maintained.

【0018】この状態でモ−タ3への通電を断つと、モ
−タによるロックが解除されて出力軸2は蓄圧されたゼ
ンマイバネ4の復元力で減速用ギヤ32がストッパ−3
bに当接する位置迄逆回転し、バルブVが閉鎖する。
In this state, when the power supply to the motor 3 is cut off, the lock by the motor is released, and the output shaft 2 is driven by the restoring force of the accumulated spring 4 so that the reduction gear 32 is moved to the stopper-3.
The valve V rotates backward until it comes into contact with the position b, and the valve V closes.

【0019】モ−タ3への通電、遮断を繰り返す毎に上
記作動を反復するものであるが、バルブVが全開放した
状態において、モ−タ3への通電状態で開閉表示板5を
スプリング6の復元力に抗して押し、突起52、52を
ケ−シング1の凹部11、11に嵌合させ、その状態の
儘モ−タ3への通電を断つと、出力軸2はバルブ閉鎖方
向に回転し、開閉表示板5も一体に回転して突起52、
52がケ−シング1の凹部11、11の側壁に係合して
出力軸2の回転が停止する。
The above operation is repeated each time the energization and cutoff of the motor 3 is repeated. When the valve V is fully opened, the open / close display plate 5 is spring-loaded when the motor 3 is energized. 6 against the restoring force, the projections 52, 52 are fitted into the recesses 11, 11 of the casing 1, and when the power supply to the motor 3 is cut off in this state, the output shaft 2 closes the valve. , The open / close display plate 5 also rotates integrally, and the projection 52,
52 engages with the side walls of the recesses 11, 11 of the casing 1 to stop the rotation of the output shaft 2.

【0020】突起52の凹部側壁に対する当接力は極め
て大きく、摩擦抵抗がスプリング6の復元力よりも極め
て大きいため、突起52、52は凹部11、11から外
れることができず、開閉表示板5から手を離してもこの
回転停止状態が保持され、図3のバルブ開放状態にロッ
クされる。
Since the contact force of the projection 52 against the side wall of the concave portion is extremely large and the frictional resistance is much larger than the restoring force of the spring 6, the projections 52, 52 cannot come off from the concave portions 11, 11, and This rotation stop state is maintained even when the hand is released, and the valve is locked in the valve open state in FIG.

【0021】バルブ開放状態にロックされた状態におい
て、モ−タ3へ再び通電してやると、出力軸2はバルブ
開放方向に回転し、開閉表示板5がバルブ全開放位置に
戻って突起53、52と凹部側壁との摩擦係合が解除さ
れるので、開閉表示板5かスプリング6の復元力で元の
位置に戻り、突起53、52が凹部11、11から外れ
る。
When the motor 3 is energized again in the locked state with the valve open, the output shaft 2 rotates in the valve opening direction, and the open / close display plate 5 returns to the fully open position of the valve and the projections 53, 52. The frictional engagement between the opening and the side wall of the recess is released, so that the opening / closing display plate 5 or the spring 6 returns to the original position by the restoring force, and the projections 53 and 52 come off the recesses 11 and 11.

【0022】この状態でモ−タ3への通電を断つと、上
述と同じくモ−タによるロックが解除されてバルブVは
閉鎖する。
When the energization of the motor 3 is stopped in this state, the lock by the motor is released and the valve V is closed as described above.

【0023】[0023]

【発明の効果】本発明に係るバルブ用アクチュエ−タに
よれば、バルブを開放するときにはモータの駆動力を利
用し、バルブを閉鎖するときにはゼンマイバネの復元力
を利用するようにしたバルブ用アクチュエータにおい
て、バルブが開放乃至閉鎖したことを表示する開閉表示
板を出力軸のロック部材として使用するようにしたもの
であるから、モ−タへ常時通電しておかなくてもバルブ
を開放状態に保持しておくことができ、停電等の事故が
発生してもバルブが自動的に閉鎖して不測の事故を招く
ようなことを防ぐことができ、また、バルブ開放中はモ
−タへの電力供給はしなくてもよいので、不必要な電力
を消費するということがなく、経済的且つ省エネルギ−
に役立つものである。
According to the actuator for a valve according to the present invention, a valve actuator which utilizes the driving force of a motor when opening a valve and utilizes the restoring force of a mainspring when closing a valve. Since the open / close display plate for indicating that the valve is open or closed is used as a lock member for the output shaft, the valve can be kept open even if the motor is not constantly energized. This prevents accidental accidents such as power failure due to the valve automatically closing even if an accident such as a power failure occurs. Also, while the valve is open, power is supplied to the motor. It is not necessary to consume unnecessary power, and it is economical and energy saving.
It is useful for.

【0024】尚、本実施例にあっては、開閉表示板は円
盤状のものを使用したが、停電時手動でバルブを開放で
きるようにレバ−ハンドル式のものを使用してもよいも
のである。
In this embodiment, the open / close display plate is a disk-shaped display plate. However, a lever-handle display plate may be used so that the valve can be manually opened in the event of a power failure. is there.

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

【図1】本発明アクチュエ−タの平面図である。FIG. 1 is a plan view of an actuator according to the present invention.

【図2】図1のA−A線における縦断側面図である。FIG. 2 is a longitudinal sectional side view taken along line AA of FIG.

【図3】出力軸ロック状態の同縦断側面図である。FIG. 3 is a vertical sectional side view of the output shaft in a locked state.

【図4】出力軸の駆動機構を表す概略平面図である。FIG. 4 is a schematic plan view illustrating a driving mechanism of an output shaft.

【符号の説明】[Explanation of symbols]

1 ケーシング 11 凹部 2 出力軸 3 モ−タ 31 減速用ギヤ 32 減速用ギヤ 4 ゼンマイバネ 5 開閉表示板 52 突起 6 スプリング REFERENCE SIGNS LIST 1 casing 11 concave portion 2 output shaft 3 motor 31 reduction gear 32 reduction gear 4 mainspring 5 open / close display plate 52 projection 6 spring

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3H062 BB04 BB33 CC01 CC29 DD11 FF05 FF10 FF30 3H063 BB43 BB50 DA14 DB39 DB50 EE12 3H065 BA01 BB02 BC03  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H062 BB04 BB33 CC01 CC29 DD11 FF05 FF10 FF30 3H063 BB43 BB50 DA14 DB39 DB50 EE12 3H065 BA01 BB02 BC03

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ケーシング内にバルブの駆動に関わる出
力軸並びに同出力軸をバルブが開放する方向に回転させ
るモ−タを設け、バルブの開放動作時に巻かれ、復元力
が蓄えられるゼンマイバネを設けたバルブ用アクチュエ
ータにおいて、ケーシングから突出する前記出力軸の端
部にスプリングを介して出力軸に沿って摺動し得るバル
ブの開閉表示板を設け、同開閉表示板のケーシングに対
向する面側に突起を形成すると共に、ケーシングの一部
に前記突起が嵌合する突起の径よりも僅かに大きい径の
凹部を形成し、バルブの開放時に前記開閉表示板をケー
シング側に押して開閉表示板の突起をケーシングの前記
凹部に嵌合させて出力軸のバルブ閉鎖方向への回転を阻
止するようにしたことを特徴とするバルブ用アクチュエ
−タ。
An output shaft for driving a valve and a motor for rotating the output shaft in a direction in which the valve is opened are provided in a casing, and a spring for winding the valve when the valve is opened and storing a restoring force is provided. In the valve actuator, an open / close display plate of a valve slidable along the output shaft via a spring is provided at an end of the output shaft protruding from the casing, and the open / close display plate is provided on a surface side facing the casing. A projection is formed, and a recess having a diameter slightly larger than the diameter of the projection to which the projection is fitted is formed in a part of the casing. Characterized by being fitted in the recess of the casing to prevent the output shaft from rotating in the valve closing direction.
JP37640798A 1998-12-22 1998-12-22 Actuator for valve Expired - Fee Related JP3488893B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP37640798A JP3488893B2 (en) 1998-12-22 1998-12-22 Actuator for valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP37640798A JP3488893B2 (en) 1998-12-22 1998-12-22 Actuator for valve

Publications (2)

Publication Number Publication Date
JP2000193128A true JP2000193128A (en) 2000-07-14
JP3488893B2 JP3488893B2 (en) 2004-01-19

Family

ID=18507091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP37640798A Expired - Fee Related JP3488893B2 (en) 1998-12-22 1998-12-22 Actuator for valve

Country Status (1)

Country Link
JP (1) JP3488893B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005233383A (en) * 2004-02-23 2005-09-02 Keihin Corp Full-open holding device in motor-operated valve
JP2009250313A (en) * 2008-04-03 2009-10-29 Yazaki Corp Gas shutoff valve
KR101318100B1 (en) * 2011-05-02 2013-10-15 유선진 Electronic gastimer using a restoring spring
KR101779654B1 (en) * 2015-01-08 2017-09-19 (주)와이케이티 Vacuum gate valve
KR20200110974A (en) * 2019-03-18 2020-09-28 주식회사 아이토크콘트롤즈 Actuator for valve opening and closing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005233383A (en) * 2004-02-23 2005-09-02 Keihin Corp Full-open holding device in motor-operated valve
JP2009250313A (en) * 2008-04-03 2009-10-29 Yazaki Corp Gas shutoff valve
KR101318100B1 (en) * 2011-05-02 2013-10-15 유선진 Electronic gastimer using a restoring spring
KR101779654B1 (en) * 2015-01-08 2017-09-19 (주)와이케이티 Vacuum gate valve
KR20200110974A (en) * 2019-03-18 2020-09-28 주식회사 아이토크콘트롤즈 Actuator for valve opening and closing
KR102602257B1 (en) 2019-03-18 2023-11-16 주식회사 아이토크콘트롤즈 Actuator for valve opening and closing

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