JP2001021050A - Gas cock - Google Patents

Gas cock

Info

Publication number
JP2001021050A
JP2001021050A JP11196034A JP19603499A JP2001021050A JP 2001021050 A JP2001021050 A JP 2001021050A JP 11196034 A JP11196034 A JP 11196034A JP 19603499 A JP19603499 A JP 19603499A JP 2001021050 A JP2001021050 A JP 2001021050A
Authority
JP
Japan
Prior art keywords
valve
peripheral surface
pressing rod
gas
valve 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
JP11196034A
Other languages
Japanese (ja)
Other versions
JP3737320B2 (en
Inventor
Yoichiro Ishigaki
陽一郎 石垣
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.)
Rinnai Corp
Original Assignee
Rinnai Corp
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 Rinnai Corp filed Critical Rinnai Corp
Priority to JP19603499A priority Critical patent/JP3737320B2/en
Priority to CNB001200801A priority patent/CN1152196C/en
Priority to TW089113417A priority patent/TW455663B/en
Priority to KR10-2000-0039055A priority patent/KR100376821B1/en
Publication of JP2001021050A publication Critical patent/JP2001021050A/en
Application granted granted Critical
Publication of JP3737320B2 publication Critical patent/JP3737320B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52458—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a tap or cock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0457—Packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S251/00—Valves and valve actuation
    • Y10S251/90—Valves with o-rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Taps Or Cocks (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To ensure air tightness between a plug and a valve casing, to simplify the structure of a push-press rod and the like, and to reduce costs by mounting an O-ring in a longitudinal direction of the valve casing, and in the fore-and aft direction of a valve port. SOLUTION: A push-press rod 5 penetrating through a plug 3 opens the valve port 22 of an electromagnetic safety valve 2. A valve member disposed on the push-press rod 5 is composed of a flange part 41, and an O-ring 42 mounted on an outer peripheral surface of the flange part 41, and is formed so as to seat the O-ring 42 on a front end surface of the plug 3 in an extinction place. Two annular grooves 45 are formed on an outer peripheral surface of the push-press rod 4, and O-rings 43, 44 are mounted on the annular grooves 45. One O-ring 43 is disposed on a position movable between a large diameter part 35 and a small diameter part 36 of the plug 3, and the other O-ring 44 is positioned on a downstream part of a pilot valve port 15 at all times, and is disposed so as to be brought into tightly contact with an inner circumferential surface of the small diameter part 36 of the plug 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、ガスコンロ等のガ
ス器具に使用するガスコックに関する。The present invention relates to a gas cock used for gas appliances such as a gas stove.

【０００２】[0002]

【従来の技術】従来、この種のガスコックは、例えば実
公昭６１−３７９８６号公報から、バルブケーシング内
の閉子の収容室をテーパ状に形成し、この収容室にテー
パ形状の閉子を回動自在に設けたものが知られている
が、バルブケーシングや閉子の加工が複雑になるととも
に、バルブケーシングに閉子を組付ける際、擦り合わせ
を行って、バルブケーシングと閉子との間の気密性を確
保する必要があった。さらに、パイロットバーナーを使
用してメインバーナーを点火する場合、点火操作の後、
パイロットバーナーへの燃料ガスの供給を遮断する必要
があり、このため、閉子の内周面であってパイロットガ
ス出口の前後に、外周面に開口部を備えたスペーサを介
してＯリングを配設するとともに、押圧ロッドにくびれ
部を形成し、このくびれ部の位置によりパイロットガス
出口への燃料ガスの供給を制御するので、押圧ロッドの
加工が複雑であった。2. Description of the Related Art Conventionally, a gas cock of this type is disclosed in Japanese Utility Model Publication No. Sho 61-37986, for example, in which a closing chamber of a valve in a valve casing is formed in a tapered shape. Although it is known that the valve casing is freely movable, the processing of the valve casing and the closing piece becomes complicated, and when assembling the closing piece to the valve casing, rubbing is performed so that a gap between the valve casing and the closing piece is obtained. It was necessary to ensure airtightness. Furthermore, when the main burner is ignited using a pilot burner, after the ignition operation,
It is necessary to shut off the supply of fuel gas to the pilot burner. For this reason, an O-ring is provided on the inner peripheral surface of the closet and before and after the pilot gas outlet via a spacer having an opening on the outer peripheral surface. In addition, a constricted portion is formed in the pressing rod, and the supply of the fuel gas to the pilot gas outlet is controlled by the position of the constricted portion, so that the processing of the pressing rod is complicated.

【０００３】また、特開平９−１７０６６９号公報か
ら、内部のガス通路を貫通する押圧ロッドが一体成形さ
れた円筒状閉子を、それに対応する内面を有するバルブ
ケーシング内に収容し、その収容室内で閉子を回転自在
かつ前後方向に摺動自在としたガスコックが知られてい
る。このものでは、擦り合わせを行う必要はなく、ま
た、押圧ロッドを複雑に加工する必要がない。From Japanese Patent Application Laid-Open No. 9-170669, a cylindrical closing member integrally formed with a pressing rod penetrating an internal gas passage is accommodated in a valve casing having an inner surface corresponding to the cylindrical closing member. There is known a gas cock in which the closing member is rotatable and slidable in the front-rear direction. In this case, there is no need to perform rubbing, and there is no need to complicately process the pressing rod.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、閉子や
バルブケーシングの加工時に閉子の外周面やバルブケー
シングの内周面の真円度並びに真直度がずれると、閉子
のガス通路が常に開放されているので、消火位置で電磁
安全弁が誤動作して開弁状態のままとなったような場合
に、閉子の弁口を介してまたは閉子の外周面とバルブケ
ーシングの内周面との間の間隙を通ってバルブケーシン
グの外側に燃料ガスが漏洩する危険性がある。このた
め、閉子及びバルブケーシングを高精度に加工し、気密
性を確保する必要があり、却ってコスト高になる。ま
た、閉子を回動しかつ軸方向に移動させる際、閉子の弁
口から流出する燃料ガスが、閉子の外周面を伝ってバル
ブケーシングの外側に漏洩する場合があり、特に、パイ
ロットバーナーを使用してメインバーナーを点火する種
のガスコックでは、点火操作終了後に閉子を回動しかつ
軸方向に移動させて火力調節するため、燃料ガスがパイ
ロットガス出口を介してバルブケーシングの外側に漏洩
する場合がある。However, if the roundness and the straightness of the outer peripheral surface of the closing member and the inner peripheral surface of the valve casing are deviated during the processing of the closing member and the valve casing, the gas passage of the closing member is always opened. If the electromagnetic safety valve malfunctions at the fire extinguishing position and remains open, the outer peripheral surface of the valve or the inner peripheral surface of the valve There is a risk of fuel gas leaking out of the valve casing through the gap between them. For this reason, it is necessary to process the closing element and the valve casing with high precision to ensure airtightness, which increases the cost. Further, when rotating and axially moving the closing element, the fuel gas flowing out from the valve opening of the closing element may leak to the outside of the valve casing along the outer peripheral surface of the closing element, and in particular, the pilot In the case of a gas cock that ignites the main burner using a burner, the fuel gas is supplied to the outside of the valve casing through a pilot gas outlet in order to adjust the thermal power by rotating the closing member and moving it axially after the ignition operation is completed. May be leaked.

【０００５】さらに、上述のガスコックでは、操作ロッ
ドを最大限押圧すると、電磁安全弁が開弁するような構
造となっているため、ガス器具等の使用者が誤って操作
ロッドを押圧した時、電磁安全弁が開弁し、場合によっ
ては、燃料ガスがバルブケーシング外側に漏洩する危険
性があった。Further, the above-described gas cock has a structure in which the electromagnetic safety valve opens when the operating rod is pressed to the maximum, so that when a user such as a gas appliance presses the operating rod by mistake, the electromagnetic safety valve is opened. There was a risk that the safety valve would open, and in some cases, the fuel gas would leak out of the valve casing.

【０００６】そこで、本発明の課題は、上述の擦り合わ
せを不要にするとともに、ガスコック自体の構造を簡単
にするために、円筒状の閉子を使用する場合、閉子の外
周面やバルブケーシングの内周面を高精度に機械加工す
ることなしに、閉子とバルブケーシングとの間の気密性
が確保でき、それに加えて押圧ロッド等の構造を簡単に
してコストダウンを図ることができ、また、例えば、消
火位置で電磁安全弁が誤動作して開弁状態のままとなっ
たような場合または点火操作終了後に閉子を回動して火
力調節する場合に、燃料ガスがバルブケーシングの外側
に漏洩することが防止できるガスコックを提供すること
にある。さらに、ガス器具等の使用者が誤って操作ロッ
ドを押圧した時、電磁安全弁が開弁しないガスコックを
提供する。Therefore, an object of the present invention is to eliminate the need for the above-mentioned rubbing and to simplify the structure of the gas cock itself, when using a cylindrical closure, the outer peripheral surface of the closure and the valve casing. Without machining the inner peripheral surface with high precision, airtightness between the closer and the valve casing can be secured, and in addition to that, the structure of the pressing rod and the like can be simplified to reduce costs, Also, for example, when the electromagnetic safety valve malfunctions at the fire extinguishing position and remains open, or when the thermal power is adjusted by rotating the closet after the end of the ignition operation, the fuel gas is discharged to the outside of the valve casing. An object of the present invention is to provide a gas cock that can prevent leakage. Further, the present invention provides a gas cock in which an electromagnetic safety valve does not open when a user of a gas appliance or the like presses the operation rod by mistake.

【０００７】[0007]

【課題を解決するための手段】この課題を解決するため
に本発明は、バルブケーシング内に、回動自在な閉子と
電磁安全弁とを収容し、前記閉子が、内部にガス通路を
備える円筒形状に形成されるとともに、外周面に前記ガ
ス通路に連通する弁口を備えたガスコックであって、バ
ルブケーシングの端部に設けられた操作ロッドを押圧回
動して点火操作する際、閉子を開き側に回動するととも
に、この操作ロッドに連結されかつバルブケーシング内
を軸方向に移動自在な押圧ロッドを前進させることで電
磁安全弁を押圧開弁するように構成したものにおいて、
円筒形状の閉子の外周面に、バルブケーシングの長手方
向であって弁口の前後に、バルブケーシングの内周面に
密接するＯリングが装着され、押圧ロッドが弁部材を備
え、消火位置では、この弁部材が閉子と協働して閉子の
ガス通路を密閉し、押圧ロッドが前進させられると、弁
部材がガス通路を開放することを特徴とする。これによ
り、閉子の弁口の前後に備えられたＯリングがバルブケ
ーシングの内周面に密接するので、閉子の外周面やバル
ブケーシングの内周面を高精度に機械加工することなし
に、閉子とバルブケーシングとの間の気密性が確保でき
るとともに、コストダウンを図ることができ、また、例
えば、消火位置において、電磁安全弁が誤動作して開弁
状態のままとなったような場合であっても、前記閉子と
バルブケーシングとの間の気密性が確保されるととも
に、押圧ロッドに備えられた弁部材が閉子と協働して閉
子のガス通路を密閉するので、バルブケーシングの外側
に燃料ガスが漏洩しない。SUMMARY OF THE INVENTION In order to solve this problem, the present invention accommodates a rotatable closure and an electromagnetic safety valve in a valve casing, and the closure has a gas passage therein. A gas cock which is formed in a cylindrical shape and has a valve port communicating with the gas passage on the outer peripheral surface, and is closed when an operation rod provided at an end of a valve casing is pressed and rotated to perform an ignition operation. The electromagnetic safety valve is configured to be opened by pushing the armature to the opening side and advancing a pushing rod connected to the operating rod and movable in the valve casing in the axial direction.
On the outer peripheral surface of the cylindrical closing member, an O-ring is attached in close proximity to the inner peripheral surface of the valve casing in the longitudinal direction of the valve casing and before and after the valve port, and the pressing rod includes a valve member. The valve member cooperates with the closing member to seal the gas passage of the closing member, and when the pressing rod is advanced, the valve member opens the gas passage. As a result, the O-rings provided before and after the valve opening of the closing member come into close contact with the inner peripheral surface of the valve casing, so that the outer peripheral surface of the closing member and the inner peripheral surface of the valve casing can be machined with high precision. In addition, when the airtightness between the closet and the valve casing can be ensured, the cost can be reduced, and, for example, in a case where the electromagnetic safety valve malfunctions in the fire extinguishing position and the valve remains open. However, since the airtightness between the closet and the valve casing is ensured, and the valve member provided on the pressing rod cooperates with the closet to seal the gas passage of the closet, the valve is closed. No fuel gas leaks outside the casing.

【０００８】パイロットバーナーを使用してメインバー
ナーの点火を行う種のガスコックでは、バルブケーシン
グに、閉子の収容室に連通するメインバーナー用のメイ
ンガス出口とパイロットバーナー用のパイロットガス出
口とが前記閉子の弁口の位置に対応して開設され、閉子
の内周面が電磁安全弁側の大径部から小径部に連なる段
付形状に形成され、この段部がメインガス出口とパイロ
ットガス出口との間に位置し、閉子のガス通路内を移動
する押圧ロッドの外周面に少なくとも１個のＯリングが
備えられ、このＯリングが、点火操作の際、大径部の領
域に位置して閉子の内周面に当接しないが、点火操作が
終了し、押圧ロッドが後退すると、前記小径部を閉鎖す
るように配設されることを特徴とする。これにより、押
圧ロッド等の構造を簡単にできるとともに、部品点数を
少なくしてコストダウンを図ることができ、また、点火
操作が終了し、パイロットバーナーのみを消火する場合
に、それに伴って移動させられる押圧ロッドのＯリング
がパイロット弁口の手前でガス通路を閉鎖するので、パ
イロットガス出口への燃料ガスの供給が止められ、火力
調整の間に燃料ガスがバルブケーシングの外側に漏れな
い。In a gas cock of the type in which a main burner is ignited by using a pilot burner, a main gas outlet for the main burner and a pilot gas outlet for the pilot burner are connected to the valve casing by the aforementioned valve. It is opened corresponding to the position of the valve opening of the closet, and the inner peripheral surface of the closet is formed in a stepped shape that continues from the large-diameter portion to the small-diameter portion on the side of the electromagnetic safety valve. At least one O-ring is provided on the outer peripheral surface of the pressing rod which moves between the outlet and the gas passage of the closing member, and which is located in the region of the large-diameter portion during the ignition operation. However, the small diameter portion is disposed so as to close the small-diameter portion when the ignition operation is completed and the pressing rod retreats, but does not come into contact with the inner peripheral surface of the closing member. As a result, the structure of the pressing rod and the like can be simplified, the number of parts can be reduced, and the cost can be reduced.In addition, when the ignition operation is completed and only the pilot burner is extinguished, the pilot burner is moved accordingly. Since the O-ring of the pressing rod to be closed closes the gas passage just before the pilot valve port, the supply of the fuel gas to the pilot gas outlet is stopped, and the fuel gas does not leak outside the valve casing during the thermal power adjustment.

【０００９】さらに、本発明は、バルブケーシングの後
端に、カム溝を画成するように案内手段が備えられ、こ
の案内手段内部を貫通する操作ロッドに、前記カム溝内
を移動可能なピン部材が突設されており、操作ロッドを
押圧すると、押圧ロッドが電磁安全弁を開弁する前に、
ピン部材が前記案内手段のカム溝と当接して操作ロッド
の前進が止められるが、この位置から操作ロッドを回動
すると、前記ピン部材がカム溝内をさらに移動するとと
もに、押圧ロッドが電磁安全弁を開弁するように、前記
カム溝が構成されることを特徴とする。これにより、操
作ロッドを誤って押圧したとしても、電磁安全弁が開弁
しない。Further, according to the present invention, a guide means is provided at a rear end of the valve casing so as to define a cam groove, and an operation rod passing through the guide means has a pin movable in the cam groove. The member is protruding, and when the operating rod is pressed, before the pressing rod opens the electromagnetic safety valve,
The advancement of the operating rod is stopped by the pin member abutting on the cam groove of the guide means. When the operating rod is rotated from this position, the pin member moves further in the cam groove, and the pressing rod is moved by the electromagnetic safety valve. The cam groove is configured to open the valve. Thus, even if the operation rod is erroneously pressed, the electromagnetic safety valve does not open.

【００１０】[0010]

【発明の実施の形態】図１は、消火位置にある本発明の
ガスコック１を示す断面図である。このガスコック１
は、２個の収容室１１と１２を有する、例えばアルミダ
イカスト製のバルブケーシング１０を備えている。一方
の収容室１１には電磁安全弁２が、他方の収容室１２に
は冷間鍛造等で円筒形状に形成された黄銅製の閉子３が
収容される。これらの収容室は電磁安全弁２用の弁材１
３によって区画される。また、閉子３が収容された収容
室１２には、メインバーナ用のメインガス出口１４とパ
イロットバーナー用のパイロットガス出口１５とが相互
に間隔をおいて開設されている。FIG. 1 is a sectional view showing a gas cock 1 of the present invention in a fire extinguishing position. This gas cock 1
Is provided with a valve casing 10 made of, for example, aluminum die-casting having two accommodation chambers 11 and 12. One of the accommodation chambers 11 accommodates the electromagnetic safety valve 2, and the other of the accommodation chambers 12 accommodates a brass closure 3 formed into a cylindrical shape by cold forging or the like. These storage chambers are provided with valve material 1 for electromagnetic safety valve 2.
3 are defined. Further, a main gas outlet 14 for a main burner and a pilot gas outlet 15 for a pilot burner are opened at an interval from each other in the accommodation room 12 in which the closing element 3 is accommodated.

【００１１】電磁安全弁２はマグネットケース２０を備
え、このマグネットケースには、バーナーの着火時に、
例えばガスバーナーの炎口の近傍に配設された熱電対等
の火炎検知素子からの信号に基づいて励磁される電磁石
とこれに吸着される吸着片とが収容され、吸着片に連結
された弁体２１によって弁座１３に形成した弁口２２を
開閉するように構成されている。ばね２３は、消火位置
において、電磁安全弁を閉弁状態に付勢保持する役割を
果たす。The electromagnetic safety valve 2 is provided with a magnet case 20. When the burner ignites, the magnet case 20
For example, an electromagnet that is excited based on a signal from a flame detecting element such as a thermocouple disposed near a gas outlet of a gas burner and a suction piece adsorbed by the magnet are housed, and a valve body connected to the suction piece is accommodated. The valve port 22 formed in the valve seat 13 is opened and closed by 21. The spring 23 urges the electromagnetic safety valve to a closed state in the fire extinguishing position.

【００１２】閉子３は、内部にガス通路を備えた円筒形
状に形成されるとともに、同様に円筒状に形成されたバ
ルブケーシング１０の収容室１２内で回動自在である。
図１（ｂ）及び図１（ｃ）に示すように、閉子３の外周
面には、バルブケーシング１０に開設されたメインガス
出口１４及びパイロットガス出口１５の位置に対応して
メイン弁口３１とパイロット弁穴３２とが形成されてい
る。また、閉子の外周面には、閉子の長手方向であって
各弁口３１と３２を挟むように３個の環状溝３３が形成
され、この環状溝に、バルブケーシングに密接するＯリ
ング３４がそれぞれ装着されている。また、閉子３の内
周面は、電磁安全弁２側の大径部３５から小径部３６に
連なる段付形状に形成され、段部３７がメインガス出口
１４とパイロットガス出口１５との間のほぼ中央部に位
置する。大径部の内径は、後述する押圧ロッドのＯリン
グ４３の外径より大きく、小径部の内径は、押圧ロッド
のＯリング４４の外周面がこの小径部の内周面と密接す
るが、この押圧ロッドの軸方向の移動を妨げない大きさ
に定められている。The closing member 3 is formed in a cylindrical shape having a gas passage therein, and is rotatable in a housing chamber 12 of a valve casing 10 also formed in a cylindrical shape.
As shown in FIGS. 1B and 1C, the outer peripheral surface of the closing member 3 has a main valve port corresponding to the positions of the main gas outlet 14 and the pilot gas outlet 15 opened in the valve casing 10. 31 and a pilot valve hole 32 are formed. In addition, three annular grooves 33 are formed on the outer peripheral surface of the closet so as to sandwich each of the valve ports 31 and 32 in the longitudinal direction of the closet. 34 are mounted respectively. The inner peripheral surface of the closing member 3 is formed in a stepped shape that continues from the large-diameter portion 35 to the small-diameter portion 36 on the side of the electromagnetic safety valve 2, and the step 37 is formed between the main gas outlet 14 and the pilot gas outlet 15. It is located almost in the center. The inner diameter of the large-diameter portion is larger than the outer diameter of the O-ring 43 of the pressing rod described later, and the inner diameter of the small-diameter portion is such that the outer peripheral surface of the O-ring 44 of the pressing rod is in close contact with the inner peripheral surface of the small-diameter portion. The size is set so as not to hinder the axial movement of the pressing rod.

【００１３】閉子３内部を貫通する押圧ロッド４は、後
述する操作ロッド５によって移動させられ、電磁安全弁
２の弁口２２を開放する役割を果たす。この押圧ロッド
４には弁部材が設けられている。この弁部材は、押圧ロ
ッド４に形成されたつば部４１とこのつば部の外周面に
装着されたＯリング４２とからなり、消火位置では、Ｏ
リング４２が閉子３の前端面に着座するように形成され
ている。また、押圧ロッド４の外周面には２個の環状溝
４５が形成され、この環状溝に、Ｏリング４３、４４が
それぞれ装着されている。一方のＯリング４３は、押圧
ロッド４が軸方向に移動させられた時、閉子３の大径部
３５と小径部３６との間を移動できるような位置に配置
され、他方のＯリング４４は、押圧ロッドが移動させら
れたとしても、常にパイロット弁口１５の下流側に位置
して、閉子３の小径部３６の内周面と密接するように配
置されている。The pressing rod 4 penetrating through the inside of the closet 3 is moved by an operation rod 5 described later, and plays a role of opening the valve port 22 of the electromagnetic safety valve 2. The pressing rod 4 is provided with a valve member. The valve member includes a flange 41 formed on the pressing rod 4 and an O-ring 42 mounted on the outer peripheral surface of the flange.
The ring 42 is formed so as to be seated on the front end face of the closet 3. Further, two annular grooves 45 are formed on the outer peripheral surface of the pressing rod 4, and O-rings 43 and 44 are mounted in the annular grooves, respectively. One O-ring 43 is arranged at a position where it can move between the large-diameter portion 35 and the small-diameter portion 36 of the closing member 3 when the pressing rod 4 is moved in the axial direction. Is always located downstream of the pilot valve port 15 even if the pressing rod is moved, and is disposed so as to be in close contact with the inner peripheral surface of the small diameter portion 36 of the closer 3.

【００１４】操作ロッド５は押圧ロッド４に連結され、
バルブケーシング１０の電磁安全弁２と反対側に突設さ
れている。この操作ロッド５は、バルブケーシング１０
の端部に取付けられた蓋部５０と、この蓋部に取付けら
れた門形のブラケット５１とに、回転自在かつ前後方向
に移動自在に挿通支持されている。また、操作ロッド５
には、蓋部５０に設けられた圧電点火ユニット（図示せ
ず）を駆動するためのレバー５２が備えられ、このレバ
ー５２と門形ブラケット５１の内側に設けられた操作ロ
ッドのフランジ５３との間にはばね５４が設けられてい
る、このばね５４は、操作ロッド５をブラケット方向に
付勢する役割を果たす。操作ロッド５の一方の端部付近
には、後述する案内手段のカム溝内を案内されるピン部
材７が長手方向軸に対して垂直に突設されている。この
操作ロッド５は押圧ロッド４と一体的に形成することも
できる。The operating rod 5 is connected to the pressing rod 4,
The valve casing 10 protrudes from the side opposite to the electromagnetic safety valve 2. This operating rod 5 is connected to a valve casing 10.
Are inserted and supported by a lid 50 attached to the end of the bracket and a gate-shaped bracket 51 attached to the lid so as to be rotatable and movable in the front-rear direction. In addition, the operating rod 5
Is provided with a lever 52 for driving a piezoelectric ignition unit (not shown) provided on the lid 50, and the lever 52 is connected to a flange 53 of an operation rod provided inside the portal bracket 51. A spring 54 is provided between them. The spring 54 plays a role of urging the operation rod 5 in the bracket direction. In the vicinity of one end of the operating rod 5, a pin member 7, which is guided in a cam groove of a guide means described later, projects perpendicularly to a longitudinal axis. The operation rod 5 can be formed integrally with the pressing rod 4.

【００１５】また、蓋部５０の内側であって、バルブケ
ーシング１０の後端部には、案内手段６が備えられてい
る。この案内手段６は、例えば樹脂等を射出形成するこ
とにより一体的に形成されるとともに、バルブケーシン
グの後端部に回動自在に装着されたカム部材から構成さ
れている。該カム部材６は、その内部を操作ロッドが貫
通できるように中空形状に形成されるとともに、長手方
向軸に対して垂直に突設した操作ロッド５のピン部材７
に対応してカム溝６０が形成されている。図５の（ａ）
及び（ｂ）に示すように、カム溝６０は長手軸方向の縦
溝６１とその端面から周方向に傾斜して屈曲された横溝
６２とから構成されている。尚、カム溝６０の横溝６２
を、カム部材６とバルブケーシング１０に形成した突起
部との間で形成することもできる。縦溝６１の長さは、
消火位置から操作ロッド５を押圧した場合、そのピン部
材７が該縦溝６１から連なる横溝６２の始端面に当接
し、押圧ロッドが電磁安全弁を開弁する手前で操作ロッ
ドの前進を止めるように、定められている。傾斜して屈
曲された横溝６２は、該押圧位置から操作ロッド５を回
動した場合、ピン部材７がカム部材の該横溝６２内に侵
入でき、そのため、操作ロッド５をさらに前進させる役
割を果たす。これにより、押圧ロッド４が前進して電磁
安全弁を開弁することができる。また、ピン部材７が横
溝６２の終端面に当接した時、カム部材は回動させられ
るが、カム部材６の外周には２個の突出部６３が形成さ
れており、この突起部がバルブケーシング１０に形成さ
れた停止部１６に当接することによって、カム部材６、
即ち操作ロッド５の回動範囲を制限できる。A guide means 6 is provided inside the lid 50 and at the rear end of the valve casing 10. The guide means 6 is integrally formed by, for example, injection-molding a resin or the like, and is constituted by a cam member rotatably mounted on the rear end of the valve casing. The cam member 6 is formed in a hollow shape so that the operation rod can pass through the inside thereof, and the pin member 7 of the operation rod 5 protruding perpendicular to the longitudinal axis.
A cam groove 60 is formed corresponding to. (A) of FIG.
As shown in (b), the cam groove 60 is composed of a longitudinal groove 61 in the longitudinal axis direction and a lateral groove 62 which is bent from the end face in the circumferential direction. The lateral groove 62 of the cam groove 60
May be formed between the cam member 6 and the protrusion formed on the valve casing 10. The length of the vertical groove 61 is
When the operating rod 5 is pressed from the fire extinguishing position, the pin member 7 comes into contact with the starting end face of the lateral groove 62 connected to the vertical groove 61, and the forward movement of the operating rod is stopped before the pressing rod opens the electromagnetic safety valve. Stipulated. When the operating rod 5 is rotated from the pressed position, the pin groove 7 can enter the horizontal groove 62 of the cam member, and thus the operating groove 5 serves to further advance the operating rod 5. . Thereby, the pressing rod 4 moves forward to open the electromagnetic safety valve. When the pin member 7 comes into contact with the terminal end surface of the lateral groove 62, the cam member is rotated. However, two projecting portions 63 are formed on the outer periphery of the cam member 6, and this projecting portion is By contacting the stop 16 formed in the casing 10, the cam member 6,
That is, the rotation range of the operation rod 5 can be limited.

【００１６】次に、図面を参照して本発明のガスコック
の動作を説明する。Next, the operation of the gas cock of the present invention will be described with reference to the drawings.

【００１７】図１に示す消火位置から操作ロッド５を押
圧すると、この操作ロッド５に連結されかつ閉子３内を
前後方向に移動可能な押圧ロッド４は、ばね８の力に抗
して電磁安全弁方向に移動させられ、操作ロッド５のピ
ン部材７が横溝６２の始端に当接した時、図２に示す状
態になる。この状態では、押圧ロッドのつば部４１に設
けられたＯリング４２は閉子３の端部から解放されると
ともに、押圧ロッド４に装着された２個のＯリングのう
ち、前側のＯリング４３が閉子の大径部３５に移動させ
られるが、電磁安全弁２の弁体２１は未だ開弁されな
い。When the operating rod 5 is pressed from the fire extinguishing position shown in FIG. 1, the pressing rod 4 connected to the operating rod 5 and movable in the front-rear direction in the closet 3 causes electromagnetic force against the force of the spring 8. When it is moved in the direction of the safety valve and the pin member 7 of the operation rod 5 comes into contact with the start end of the lateral groove 62, the state shown in FIG. In this state, the O-ring 42 provided on the flange portion 41 of the pressing rod is released from the end of the closing member 3 and, of the two O-rings mounted on the pressing rod 4, the front O-ring 43 Is moved to the large diameter portion 35 of the closing member, but the valve body 21 of the electromagnetic safety valve 2 is not yet opened.

【００１８】この押圧位置から操作ロッドを回動する
と、ピン部材７がカム部材６の傾斜して屈曲された横溝
６２を移動するので、操作ロッド５及び押圧ロッド４が
さらに前進し、図３に示す状態になる。この状態では、
押圧ロッド４が電磁安全弁２の弁体２１を開弁し、これ
により、閉子３内部のガス通路に燃料ガスが流入すると
ともに、操作ロッド５の回動によって閉子３が回動され
られ、閉子の各弁口３１と３２がメインガス出口１４と
パイロットガス出口１５と連通する。その結果、パイロ
ットバーナー並びにメインバーナーに燃料ガスが供給さ
れ、それに伴ってレバー５２により圧電ユニットが駆動
されてパイロットバーナーが点火される。When the operating rod is rotated from the pressing position, the pin member 7 moves in the inclined groove 62 of the cam member 6, so that the operating rod 5 and the pressing rod 4 are further advanced, and FIG. State shown. In this state,
The pressing rod 4 opens the valve element 21 of the electromagnetic safety valve 2, whereby fuel gas flows into a gas passage inside the closing element 3, and the closing element 3 is turned by turning of the operation rod 5, Each of the closing valve ports 31 and 32 communicates with the main gas outlet 14 and the pilot gas outlet 15. As a result, fuel gas is supplied to the pilot burner and the main burner, and accordingly, the lever 52 drives the piezoelectric unit to ignite the pilot burner.

【００１９】点火後に、操作ロッド５から手を離すと、
操作ロッドのフランジ５３を付勢するばね５４バネの復
帰力によって、操作ロッドのピン７がカム溝６０を案内
されて縦溝まで後退し、図４に示す状態になる。この状
態では、押圧ロッドの前側のＯリング４３は、閉子３の
小径部３６を閉鎖する位置まで後退させられ、該小径部
３６の内周面に密接するので、パイロットガス出口１５
への燃料ガスの供給が止められる。また、この位置で
は、もはや押圧ロッド４が電磁安全弁２を押圧してない
が、メインバーナーが失火しない限り、電磁安全弁２の
電磁石が励磁されて開弁状態に保持される。After the ignition, when the hand is released from the operating rod 5,
Due to the return force of the spring 54 that urges the flange 53 of the operating rod, the pin 7 of the operating rod is guided in the cam groove 60 and retreats to the vertical groove, as shown in FIG. In this state, the O-ring 43 on the front side of the pressing rod is retracted to a position where the small-diameter portion 36 of the closet 3 is closed, and comes into close contact with the inner peripheral surface of the small-diameter portion 36.
The supply of fuel gas to is stopped. In this position, the pressing rod 4 no longer presses the electromagnetic safety valve 2, but as long as the main burner does not misfire, the electromagnet of the electromagnetic safety valve 2 is excited and held in the open state.

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

【図１】（ａ）は、消火位置にある、本発明のガスコッ
ク１を示す断面図。（ｂ）は、（ａ）図のＡ−Ａ線に沿
った断面図。（ｃ）は、（ａ）図のＢ−Ｂ線に沿った断
面図。FIG. 1A is a sectional view showing a gas cock 1 of the present invention in a fire extinguishing position. FIG. 2B is a cross-sectional view taken along line AA in FIG. (C) is a sectional view taken along line BB of (a).

【図２】操作ロッドを押圧した状態を示す、本発明のガ
スコック１を示す断面図。FIG. 2 is a cross-sectional view showing the gas cock 1 of the present invention, showing a state where the operation rod is pressed.

【図３】操作ロッドを押圧し、開き側に回動した状態を
示す、本発明のガスコック１を示す断面図。FIG. 3 is a cross-sectional view showing the gas cock 1 of the present invention, showing a state in which the operating rod is pressed and turned to the open side.

【図４】点火後の、本発明のガスコック１を示す断面
図。FIG. 4 is a sectional view showing the gas cock 1 of the present invention after ignition.

【図５】（ａ）は、図１のＣ−Ｃ線に沿った断面図。
（ｂ）は、カム部材の断面図。FIG. 5A is a sectional view taken along the line CC of FIG. 1;
(B) is sectional drawing of a cam member.

【符号の説明】[Explanation of symbols]

１ ガスコック １０ バルブケーシング ２ 電磁安全弁 ２０ マグネットケース ３ 閉子 ４ 押圧ロッド ５ 操作ロッド ６ カム部材 DESCRIPTION OF SYMBOLS 1 Gas cock 10 Valve casing 2 Electromagnetic safety valve 20 Magnet case 3 Closer 4 Push rod 5 Operation rod 6 Cam member

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 バルブケーシング内に、回動自在な閉子
と電磁安全弁とを収容し、前記閉子が、内部にガス通路
を備える円筒形状に形成されるとともに、外周面に前記
ガス通路に連通する弁口を備えたガスコックであって、
バルブケーシングの端部に設けられた操作ロッドを押圧
回動して点火操作する際、閉子を開き側に回動するとと
もに、この操作ロッドに連結されかつバルブケーシング
内を軸方向に移動自在な押圧ロッドを前進させることで
電磁安全弁を押圧開弁するように構成したものにおい
て、 円筒形状の閉子の外周面に、バルブケーシングの長手方
向であって弁口の前後に、バルブケーシングの内周面に
密接するＯリングが装着され、押圧ロッドが弁部材を備
え、消火位置では、この弁部材が閉子と協働して閉子の
ガス通路を密閉し、押圧ロッドが前進させられると、弁
部材がガス通路を開放することを特徴とするガスコッ
ク。1. A valve casing containing a rotatable closing element and an electromagnetic safety valve, wherein the closing element is formed in a cylindrical shape having a gas passage therein, and has an outer peripheral surface formed with the gas passage. A gas cock provided with a communicating valve port,
When the operating rod provided at the end of the valve casing is pressed and rotated to perform the ignition operation, the closure is rotated to the open side, and is connected to the operating rod and is movable in the axial direction in the valve casing. The electromagnetic safety valve is configured to be pressed and opened by advancing the pressing rod, wherein the inner peripheral surface of the valve casing is provided on the outer peripheral surface of the cylindrical shaped closing member in the longitudinal direction of the valve casing and before and after the valve port. When an O-ring close to the surface is mounted, the pressing rod includes a valve member, and in the fire-extinguishing position, the valve member cooperates with the closing member to seal the gas passage of the closing member, and when the pressing rod is advanced, A gas cock, wherein the valve member opens a gas passage. 【請求項２】 バルブケーシングに、閉子の収容室に連
通するメインバーナー用のメインガス出口とパイロット
バーナー用のパイロットガス出口とが前記閉子の弁口の
位置に対応して開設され、閉子の内周面が電磁安全弁側
の大径部から小径部に連なる段付形状に形成され、この
段部がメインガス出口とパイロットガス出口との間に位
置し、閉子のガス通路内を移動する押圧ロッドの外周面
に少なくとも１個のＯリングが備えられ、このＯリング
は、点火操作の際、大径部の領域に位置して閉子の内周
面に当接しないが、点火操作が終了し、押圧ロッドが後
退すると、前記小径部を閉鎖するように配設されること
を特徴とする請求項１記載のガスコック。2. A main gas outlet for a main burner and a pilot gas outlet for a pilot burner, which communicate with a storage chamber of a valve, are opened in a valve casing corresponding to the position of the valve port of the valve. The inner peripheral surface of the valve is formed in a stepped shape that continues from the large-diameter portion to the small-diameter portion on the side of the electromagnetic safety valve, and this step is located between the main gas outlet and the pilot gas outlet. At least one O-ring is provided on the outer peripheral surface of the moving pressing rod, and this O-ring is located in the area of the large diameter portion and does not abut against the inner peripheral surface of the closet during ignition operation. 2. The gas cock according to claim 1, wherein the small diameter portion is closed when the operation is completed and the pressing rod is retracted. 【請求項３】 バルブケーシングの後端に、カム溝を画
成するように案内手段が備えられ、この案内手段内部を
貫通する操作ロッドに、前記カム溝内を移動可能なピン
部材が突設されており、操作ロッドを押圧すると、押圧
ロッドが電磁安全弁を開弁する前に、ピン部材が前記案
内手段のカム溝と当接して操作ロッドの前進が止められ
るが、この位置から操作ロッドを回動すると、前記ピン
部材がカム溝内をさらに移動するとともに、押圧ロッド
が電磁安全弁を開弁するように、前記カム溝が構成され
ることを特徴とする請求項１または請求項２記載のガス
コック。3. A guide means is provided at a rear end of the valve casing so as to define a cam groove, and an operation rod penetrating the guide means is provided with a pin member movable in the cam groove. When the operating rod is pressed, before the pressing rod opens the electromagnetic safety valve, the pin member contacts the cam groove of the guide means to stop the advancement of the operating rod. 3. The cam groove according to claim 1, wherein the pin groove further moves in the cam groove when the pivot member rotates, and the cam groove is configured such that the pressing rod opens the electromagnetic safety valve. Gas cock.
JP19603499A 1999-07-09 1999-07-09 Gas cock Expired - Fee Related JP3737320B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP19603499A JP3737320B2 (en) 1999-07-09 1999-07-09 Gas cock
CNB001200801A CN1152196C (en) 1999-07-09 2000-07-03 Gas burning tap
TW089113417A TW455663B (en) 1999-07-09 2000-07-06 Gas cock
KR10-2000-0039055A KR100376821B1 (en) 1999-07-09 2000-07-08 A gas cock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19603499A JP3737320B2 (en) 1999-07-09 1999-07-09 Gas cock

Publications (2)

Publication Number Publication Date
JP2001021050A true JP2001021050A (en) 2001-01-26
JP3737320B2 JP3737320B2 (en) 2006-01-18

Family

ID=16351113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19603499A Expired - Fee Related JP3737320B2 (en) 1999-07-09 1999-07-09 Gas cock

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JP (1) JP3737320B2 (en)
KR (1) KR100376821B1 (en)
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TW (1) TW455663B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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CN1302231C (en) * 2004-04-23 2007-02-28 湖南迅达集团有限公司 Control valve for high power kitchen range
GB2469091A (en) * 2009-04-01 2010-10-06 Diamond H Controls Ltd Thermostatic control device for gas appliances
KR101048239B1 (en) 2009-02-02 2011-07-08 린나이코리아 주식회사 Gas stove double sided grill valve
JP2011226673A (en) * 2010-04-16 2011-11-10 Rinnai Corp Rotary gas valve device
CN103615749A (en) * 2013-09-03 2014-03-05 杨永生 Multifunctional gas stove
CN111981500A (en) * 2019-05-24 2020-11-24 林内株式会社 Fire regulating valve

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CN100436907C (en) * 2007-04-28 2008-11-26 中山利特隆瓦斯器材有限公司 Two gases shared gas valve
CN100516607C (en) * 2007-11-08 2009-07-22 李雪亚 Cock valve capable of transfering two gas sources
CN105318028B (en) * 2014-06-13 2019-02-12 林内株式会社 Gas cock
CN108518501B (en) * 2018-06-15 2024-03-22 林科宇 Gas plug valve
CN110030396B (en) * 2019-03-15 2023-11-10 四川大学 Completely friction-free ball valve for sealing surface in opening and closing process
CN110145875B (en) * 2019-05-30 2021-01-26 朱锦龙 Quick heating water heater with halogen lamp tube
KR102541606B1 (en) * 2023-04-05 2023-06-08 김민이 Valve for gas heater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302231C (en) * 2004-04-23 2007-02-28 湖南迅达集团有限公司 Control valve for high power kitchen range
KR101048239B1 (en) 2009-02-02 2011-07-08 린나이코리아 주식회사 Gas stove double sided grill valve
GB2469091A (en) * 2009-04-01 2010-10-06 Diamond H Controls Ltd Thermostatic control device for gas appliances
JP2011226673A (en) * 2010-04-16 2011-11-10 Rinnai Corp Rotary gas valve device
CN103615749A (en) * 2013-09-03 2014-03-05 杨永生 Multifunctional gas stove
CN111981500A (en) * 2019-05-24 2020-11-24 林内株式会社 Fire regulating valve

Also Published As

Publication number Publication date
CN1152196C (en) 2004-06-02
KR100376821B1 (en) 2003-03-19
KR20010049743A (en) 2001-06-15
CN1280274A (en) 2001-01-17
TW455663B (en) 2001-09-21
JP3737320B2 (en) 2006-01-18

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