JP3808158B2 - Switching display adjuster with holding function - Google Patents

Switching display adjuster with holding function Download PDF

Info

Publication number
JP3808158B2
JP3808158B2 JP04583597A JP4583597A JP3808158B2 JP 3808158 B2 JP3808158 B2 JP 3808158B2 JP 04583597 A JP04583597 A JP 04583597A JP 4583597 A JP4583597 A JP 4583597A JP 3808158 B2 JP3808158 B2 JP 3808158B2
Authority
JP
Japan
Prior art keywords
gas pressure
display
arm
fulcrum shaft
diaphragm
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
Application number
JP04583597A
Other languages
Japanese (ja)
Other versions
JPH10238651A (en
Inventor
誠吾 岩本
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.)
ITO KOKI CO., LTD.
Original Assignee
ITO KOKI 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 ITO KOKI CO., LTD. filed Critical ITO KOKI CO., LTD.
Priority to JP04583597A priority Critical patent/JP3808158B2/en
Priority to KR1019970059682A priority patent/KR100222516B1/en
Publication of JPH10238651A publication Critical patent/JPH10238651A/en
Application granted granted Critical
Publication of JP3808158B2 publication Critical patent/JP3808158B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は、ガス供給ボンベのガス切れによるガス圧低下状態を表示（報知）するとともに、ボンベの接続状態を表示する調整器であって、一旦表示されたガス圧低下状態が逆戻りしない機能を付加した保持機能付き切替え表示調整器に関する。
【０００２】
【従来の技術】
液化石油ガス（以下、単にガスという）の供給は、通常複数本、例えば二本のボンベから高圧ガス管を導出して切替え表示調整器のガス流入口に接続し、ボンベのガスを交互に消費してゆくようにしている。ここで使用される切替え表示調整器は、例えば実願昭５６−１０５８３９号（実公昭６０−６６９７号公報）に記載のように、ダイヤフラム室に流入するガス圧の変化によって変位するダイヤフラム、このダイヤフラムと共動し回転可能な変位伝達棒、上記変位伝達棒の下部に取り付けられた弁体切替えカム、片端が上記弁体切替えカムに当接し他端が弁棒に当接する揺動リンク、上記弁棒と共動し弁口を常閉に付勢された弁体、上記ダイヤフラムと共動する変位伝達棒の下降によってガス圧低下を表示するガス圧低下表示部、上記変位伝達棒と共に弁体切替えカムを回転させる切替えハンドルからなる構成をしたものである。
【０００３】
【発明が解決しようとする課題】
上記構成のものでは、ボンベのガス圧低下状態になると一旦は、ガス圧低下状態を表示するが、ガス消費ラインでの消費が停まったり、外気温の上昇や太陽熱などの原因でダイヤフラム室の内圧が上昇してガス圧低下の表示が消えてしまい、ボンベのガス切れ状態を正確に把握できなくなる問題がある。
【０００４】
上記問題に鑑みこの発明は、一旦ガス圧低下状態を表示すると、その状態を保持し、確実にボンベのガス切れ状態を報知する保持機能付き切替え表示調整器を提供することを課題とする。
【０００５】
【課題を解決するための手段】
上記課題を解決するためにこの発明は、ダイヤフラム室１のガス圧変化によって変位するダイヤフラム２、このダイヤフラム２の中心を貫通し回転可能、かつ気密に取り付けられ軸方向に共動する変位伝達棒３、上記変位伝達棒３の下部に固着された弁体切替えカム４に、その片端が上記弁体切替えカム４に、他端が弁棒５に当接した揺動リンク６、上記弁棒５と共動し弁口７を常閉に付勢された弁体８、上記ダイヤフラム２と共動する変位伝達棒３の下降によってガス圧低下を表示するガス圧低下表示部９、上記変位伝達棒３とともに弁体切替えカム４を回転させる弁体切替えハンドル１０を備え、上記ガス圧低下表示部９を、表示板１１を有するアーム１２を固着した支点軸１３を軸受け１４で支承し、変位伝達棒３の頂部に設けた掛合部１５を上記アーム１２の力点Ｐに掛合させ、ダイヤフラム２の変位によって、上記掛合部１５がアーム１２の力点Ｐを掛け下げて該アーム１２を回動させ、表示板１１のガス圧低下表示を保持状態とし、上記弁体切替えハンドル１０を回すことにより、上記保持状態を解除されるようにし、上記支点軸１３に押し・捩じりバネ１６を装着し、表示板１１がガス圧低下表示状態に至ると、押し・捩じりバネ１６の押し付勢により、軸受け１４と支点軸１３またはアーム１２との間に支点軸１３の回転を阻止する嵌め合いが生じてガス圧低下表示状態を保持するとともに、支点軸１３が軸方向に移動してその先端が軸受け１４から突出するようにしたものである。
【０００６】
また必要ならば、弁体切替えハンドル１０が回されるとき、弁体切替えハンドル１０の基板１７に設けられた円弧状立て壁１８が、軸受け１４から突出した支点軸１３の先端を押し戻し、押し・捩じりバネ１６の捩じり付勢により表示板１１を有するアーム１２を倒伏させる機構を付加してなるものである。
【０００７】
上記の如く構成する各発明は、ボンベのガス切れ状態になって表示板がガス圧低下表示状態になると、その表示の保持機能が働き、その後、環境条件が変化してダイヤフラム室の内圧が上昇しても、ガス圧低下表示状態が逆戻りすることがなく、確実にボンベのガス切れ状態を把握することが可能となる。
【０００８】
【発明の実施の形態】
次に、この発明に係る第一実施形態を図面を参照しながら説明する。２４ａは第一流入口、２４ｂは第二流入口で、２５は流出口である。いま、第一、第二流入口２４ａ、２４ｂに接続されているボンベには、ガスが充填された状態であるとし、弁体切替えカム４は、第一流入口２４ａ側に切替えられていて、揺動リンク６を介して弁棒５が押され弁体８が後退して、弁口７が開いた状態にある。
【０００９】
流出口２５からガスが消費されて第一流入口２４ａに接続されたボンベのガスがなくなると、ダイヤフラム室１の内圧が低下し、ダイヤフラム２は、その上部に装着されたバネ２６の押し下げ付勢によって次第に下降する。ダイヤフラム２が下降すると、それと共に変位伝達棒３も下降する。ここで変位伝達棒３は、軸方向に共動するが回転可能、かつ気密にダイヤフラム２に取り付けられている。
【００１０】
ダイヤフラム大気室２７の上には、弁体切替えハンドル１０の基盤１７が嵌まっていて、その中心を変位伝達棒３が貫通し、基盤１７のボス２８の内形を６角形の長孔２９とし、その部分に嵌まる変位伝達棒３の外形を６角として、軸方向に摺動可能にして互いに空回りしないようになっている。
【００１１】
変位伝達棒３の上端には、小円形の掛合部１５が形成され、この掛合部１５は、ダイヤフラム大気室２７の上面から立ち上げた軸受け１４、１４’に支承された支点軸１３に固着されたアーム１２の力点Ｐに掛合している。アーム１２の端には表示板１１がＬ字状に曲がって一体に設けられ、支点軸１３には、押し・捩じりバネ１６が装着されている。アーム１２が振り上ると表示板１１はカバー３０の表示窓３１の内側で一致するようになっている。なお、カバー３０は必要に応じ外せるように弁体切替えハンドル１０の基盤１７に嵌め合わされている。ここで、弁体切替えハンドルの基盤に、二個の円弧状の長孔４０，４１が設けられているが、ダイヤフラム大気室２７の上面から立ち上がった軸受け１４、１４’が貫通するためのものである。
【００１２】
片方の軸受け１４’には、支点軸１３と平行な貫通孔３２が設けられ、アーム１２の軸受け１４’側には表示板１１がガス圧低下状態を表示したときに押し・捩じりバネ１６の押し付勢によって上記貫通孔３２に嵌まり合う凸部２０が設けられていて、凸部２０が貫通孔３２に嵌まり合ったとき支点軸１３の先端が軸受け１４’の外側面から突き出し状態３３になるようにしている。
【００１３】
弁体切替えハンドル１０の基盤１７の上面には、変位伝達棒３が貫通している孔を中心とする円弧状立て壁１８が設けられていて、その両端は外側に開いてアプローチを形成し、弁体切替えハンドル１０を回したとき支点軸１３の先端突き出し３３をスムーズに押し込み得るようにしている。
【００１４】
一端に表示板１１を有するアーム１２の中間位置には永久磁石３４が取り付けられ、表示板１１がガス圧低下状態を表示した時点でブラケット３５に取り付けられたリードスイッチ３６が作動するようにしてある。なお、永久磁石とリードスイッチに代えて光ファイバーコード３８により光を誘導し、表示板１１の裏に反射板４３を設け、表示板１１の位置を光センサー３９で検出して警報機を作動させることもできる。
【００１５】
断面Ｈ形をした弁体８は、その後方にバネ座４２で支持され弁体８の後方に嵌まり込んでいる押しバネ３７によって弁口７が常閉になる方向に付勢されるように装着されている。
【００１６】
上記実施形態では、ガス圧低下表示の保持機構として、表示板１１がガス圧低下状態を表示したときに押し・捩じりバネ１６の押し付勢によって軸受け１４’に設けた貫通孔３２に、アーム１２の側面に設けた凸部２０が嵌まり合うようにしたが、次のような機構を採用することができる。
【００１７】
即ち、図８に示すように、軸受け１４’の軸孔２２に溝２１を設け支点軸１３に軸方向の凸条２３を設けて、表示板１１がガス圧低下状態を表示したとき凸条２３が溝に嵌まるようにする。なお、軸孔２２の溝２１及び支点軸１３の凸条２３を単数にしてもよい。
【００１８】
次にこの実施形態の機能について説明する。図において、弁体切替えハンドル１０は第一流入口２４ａに向けられている。即ち、弁体切替えカム４は、揺動リンク６を介して第一流入口２４ａの弁体８と共動する弁棒５を押し込み、弁口７を開きダイヤフラム室１の内圧はボンベから供給されるガスによって所定の圧力になっている。
【００１９】
ボンベのガスが消費されガス切れになると、ダイヤフラム室１の内圧が低下するが、この状態になるとダイヤフラム大気室２７のバネの付勢によりダイヤフラム２が下降する。ダイヤフラム２が下降すると、変位伝達棒３が共に下降して、その上端にある掛合部１５が、端部に表示板１１を有するアーム１２の力点Ｐに掛合して引き下げる。力点Ｐが引き下げられるとアーム１２は、支点軸１３を軸にして回動しアーム１２の端に設けた表示板１１が振り上がりカバー３０の頂部に設けた表示窓３１の位置に重なり、ガス圧低下を表示する。
【００２０】
ガス圧低下状態を表示すると、アーム１２の側面に設けた凸部２０が、軸受け１４’に設けた貫通孔３２に嵌まり、支点軸１３の先端が軸受け１４’の外側に突出しその状態が保持される。従って、ガスの消費が停まったり、その他の環境の変化でダイヤフラム室１の内圧が上昇しても表示は逆戻りしない。
【００２１】
ガス圧低下状態を示すと、アーム１２の中程に取り付けられた永久磁石３４によりリードスイッチ３６が作動して管理室等に設置された警報機がボンベのガス切れを報知する。
【００２２】
ガス切れ報知を受けて、弁体切替えハンドル１０を第二流入口２４ｂ側に切替えると揺動リンク６を介して弁棒５が押し込まれ、弁体８も共動して弁口７が開かれ、ボンベからガスが供給されダイヤフラム室１の内圧が上昇する。弁体切替えハンドル１０が第一流入口２４ａ側から第二流入口２４ｂ側に切替えられるとき、弁体切替えハンドル１０の基盤１７に設けられた円弧状立て壁１８が、軸受１４’の外側に突出した支点軸１３の先端３３を押し込み、貫通孔３２に嵌まっていた凸部２０が抜けて、押し・捩じりバネの捩じり付勢によって表示板を有するアーム１２が倒伏する。
【００２３】
弁体切替えハンドル１０が切替えられると、弁体切替えカム４もその位置を変更し、第一流入口２４ａの弁体８は、押しバネ３７の付勢によって弁口７を閉塞する。ガス切れになった第一流入口２４ａ側のボンベは、ガスが充填された新しいボンベと取り替えられるが、第一流入口２４ａの弁体８が弁口７を閉塞しているので、取り替えられたボンベのガスは消費されず、弁体切替えハンドル１０が切替えられるまでその状態を維持する。
【００２４】
【発明の効果】
以上説明した如く、この発明によれば一旦ガス圧低下状態を表示すると、その状態を保持し、確実にボンベのガス切れ状態を報知することができる。
【図面の簡単な説明】
【図１】この発明に係る実施形態の横断面図
【図２】同縦断面図
【図３】同上面図
【図４】（ａ） 弁体切替えハンドルの斜視図
（ｂ） 同上面図
（ｃ） 同下面図
【図５】（ａ） 図４（ａ）のＡ−Ａ断面図
（ｂ） 図４（ａ）のＢ−Ｂ断面図
【図６】（ａ） ガス圧低下表示動作説明の縦断面図
（ｂ） ガス圧低下表示動作説明の横断面図
【図７】（ａ） ガス圧低下表示保持状態説明の縦断面図
（ｂ） ガス圧低下表示保持状態説明の横断面図
【図８】他の実施形態におけるガス圧低下表示保持状態説明の横断面図
【符号の説明】
１ ダイヤフラム室
２ ダイヤフラム
３ 変位伝達棒
４ 弁体切替えカム
５ 弁棒
６ 揺動リンク
７ 弁口
８ 弁体
９ ガス圧低下表示部
１０ 弁体切替えハンドル
１１ 表示板
１２ アーム
１３ 支点軸
１４，１４’ 軸受け
１５ 掛合部
１６ 押し・捩じりバネ
１７ 基盤
１８ 円弧状立て壁
１９ 軸受け孔
２０ 凸部
２１ 溝
２２ 軸孔
２３ 凸条
２４ａ 第一流入口
２４ｂ 第二流入口
２５ 流出口
２６ バネ（ダイヤフラムの）
２７ ダイヤフラム大気室
２８ ボス
２９ 長孔
３０ カバー
３１ 表示窓
３２ 貫通孔
３３ 突き出た支点軸の先端
Ｐ 力点（アームの）[0001]
BACKGROUND OF THE INVENTION
This invention displays (informs) the gas pressure drop state due to the gas supply cylinder running out of gas and also displays the connection state of the cylinder, and adds a function to prevent the gas pressure drop state once displayed from reversing. The present invention relates to a switching display adjuster with a holding function.
[0002]
[Prior art]
The supply of liquefied petroleum gas (hereinafter simply referred to as gas) is usually derived from high pressure gas pipes from multiple cylinders, for example, two cylinders, connected to the gas inlet of the switching display regulator, and the cylinder gas is consumed alternately. I try to do it. The switching display adjuster used here is, for example, a diaphragm that is displaced by a change in gas pressure flowing into the diaphragm chamber, as described in Japanese Utility Model Publication No. 56-105839 (Japanese Utility Model Publication No. 60-6697), and this diaphragm. A displacement transmission rod that can rotate together with the valve, a valve body switching cam attached to a lower portion of the displacement transmission rod, a swing link in which one end abuts the valve body switching cam and the other end abuts the valve rod, the valve A valve body that is cooperated with the rod and the valve port is normally urged, a gas pressure drop display unit that displays a gas pressure drop by lowering of the displacement transmission rod that cooperates with the diaphragm, and a valve body switching with the displacement transmission rod It is composed of a switching handle for rotating the cam.
[0003]
[Problems to be solved by the invention]
In the case of the above configuration, once the gas pressure in the cylinder is lowered, the gas pressure lowered state is displayed, but the consumption in the gas consumption line stops, the internal pressure of the diaphragm chamber is increased due to an increase in outside air temperature, solar heat, etc. As a result, the indication of gas pressure drop disappears, and there is a problem that it is impossible to accurately grasp the gas out condition of the cylinder.
[0004]
In view of the above problems, an object of the present invention is to provide a switching display adjuster with a holding function that once displays a gas pressure reduction state, holds the state, and reliably notifies the gas exhaust state of the cylinder.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention includes a diaphragm 2 that is displaced by a change in gas pressure in the diaphragm chamber 1 , a displacement transmission rod 3 that passes through the center of the diaphragm 2 , is rotatable, is airtightly attached, and coacts in the axial direction. , the cam 4 switching valve body secured to the lower portion of the displacement transmission rod 3, the cam 4 the one end is the valve body switching, swing link 6 and the other end is in contact with the valve stem 5, with the valve stem 5 A valve body 8 that is cooperated and urges the valve port 7 to be normally closed, a gas pressure decrease display portion 9 that displays a gas pressure decrease by the downward movement of the displacement transmission rod 3 that cooperates with the diaphragm 2, and the displacement transmission rod 3. a valve body switching handle 10 to rotate the cam 4 switching valve body with, the gas pressure decrease display unit 9, the fulcrum shaft 13 which is fixed an arm 12 having a display panel 11 and supported by the bearing 14, the displacement transmission rod 3 Provided on top of The engaging portion 15 is engaged to the force point P of the arm 12, the displacement of the diaphragm 2, the engaging portion 15 is lowered over the force point P of the arm 12 is rotated to the arm 12, the gas pressure decrease display of the display panel 11 The holding state is released by turning the valve body switching handle 10 , the push / torsion spring 16 is attached to the fulcrum shaft 13 , and the display plate 11 displays a gas pressure drop display. When the state is reached, the pushing / torsion spring 16 is biased to cause a fitting that prevents the rotation of the fulcrum shaft 13 between the bearing 14 and the fulcrum shaft 13 or the arm 12, and the gas pressure reduction display state is displayed. In addition to being held, the fulcrum shaft 13 moves in the axial direction so that its tip protrudes from the bearing 14 .
[0006]
Further, if necessary, when the valve body switching handle 10 is turned, the arcuate standing wall 18 provided on the base plate 17 of the valve body switching handle 10 pushes back the tip of the fulcrum shaft 13 protruding from the bearing 14 , A mechanism for causing the arm 12 having the display plate 11 to fall down by the torsional bias of the torsion spring 16 is added.
[0007]
In each of the inventions configured as described above, when the cylinder is out of gas and the display plate is in a gas pressure lowering display state, the display holding function works, and then the environmental conditions change and the internal pressure of the diaphragm chamber increases. Even in this case, the gas pressure reduction display state does not reverse, and it is possible to reliably grasp the gas exhaust state of the cylinder.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, a first embodiment according to the present invention will be described with reference to the drawings. Reference numeral 24a denotes a first inlet, 24b denotes a second inlet, and 25 denotes an outlet. Now, the cylinders connected to the first and second inlets 24a and 24b are assumed to be filled with gas, and the valve body switching cam 4 is switched to the first inlet 24a side, The valve rod 5 is pushed through the moving link 6 so that the valve body 8 is retracted and the valve port 7 is open.
[0009]
When the gas from the outlet 25 is consumed and the gas in the cylinder connected to the first inlet 24a is exhausted, the internal pressure of the diaphragm chamber 1 is reduced, and the diaphragm 2 is pressed by the spring 26 attached to the upper part thereof. Gradually descend. When the diaphragm 2 is lowered, the displacement transmission rod 3 is also lowered at the same time. Here, the displacement transmission rod 3 is attached to the diaphragm 2 so as to be rotatable and airtight while co-operating in the axial direction.
[0010]
The base 17 of the valve body switching handle 10 is fitted on the diaphragm atmosphere chamber 27, the displacement transmission rod 3 passes through the center thereof, and the inner shape of the boss 28 of the base 17 is a hexagonal long hole 29. The outer shape of the displacement transmitting rod 3 that fits in the portion is made into six corners, and is slidable in the axial direction so as not to idle.
[0011]
A small circular hook 15 is formed at the upper end of the displacement transmission rod 3, and this hook 15 is fixed to a fulcrum shaft 13 supported by bearings 14, 14 ′ raised from the upper surface of the diaphragm atmosphere chamber 27. The arm 12 is engaged with the power point P of the arm 12. A display plate 11 is bent in an L shape and is integrally provided at an end of the arm 12, and a push / torsion spring 16 is attached to the fulcrum shaft 13. When the arm 12 is swung up, the display plate 11 coincides with the inside of the display window 31 of the cover 30. The cover 30 is fitted on the base 17 of the valve body switching handle 10 so that it can be removed as necessary. Here, two arc-shaped elongated holes 40 and 41 are provided in the base of the valve body switching handle, and the bearings 14 and 14 ′ rising from the upper surface of the diaphragm atmosphere chamber 27 are penetrated. is there.
[0012]
A through-hole 32 parallel to the fulcrum shaft 13 is provided in one of the bearings 14 ′, and a push / torsion spring 16 is displayed on the bearing 14 ′ side of the arm 12 when the display plate 11 displays a gas pressure drop state. The convex portion 20 that fits into the through hole 32 is provided by the pressing force of, and the tip of the fulcrum shaft 13 protrudes from the outer surface of the bearing 14 ′ when the convex portion 20 fits into the through hole 32. 33.
[0013]
On the upper surface of the base 17 of the valve body switching handle 10, an arcuate standing wall 18 centering on a hole through which the displacement transmitting rod 3 passes is provided, and both ends thereof are opened outward to form an approach, When the valve body switching handle 10 is turned, the tip protrusion 33 of the fulcrum shaft 13 can be pushed in smoothly.
[0014]
A permanent magnet 34 is attached to an intermediate position of the arm 12 having the display plate 11 at one end, and the reed switch 36 attached to the bracket 35 is activated when the display plate 11 displays a gas pressure drop state. . It is to be noted that light is guided by an optical fiber cord 38 instead of a permanent magnet and a reed switch, a reflection plate 43 is provided on the back of the display plate 11, and the position of the display plate 11 is detected by a light sensor 39 to activate an alarm device. You can also.
[0015]
The valve body 8 having an H-shaped cross section is urged in a direction in which the valve port 7 is normally closed by a push spring 37 supported by a spring seat 42 on the rear side and fitted on the rear side of the valve body 8. It is installed.
[0016]
In the above embodiment, as a holding mechanism for the gas pressure drop display, in the through hole 32 provided in the bearing 14 ′ by the pressing force of the push / torsion spring 16 when the display plate 11 displays the gas pressure drop state, Although the convex portions 20 provided on the side surfaces of the arms 12 are fitted to each other, the following mechanism can be employed.
[0017]
That is, as shown in FIG. 8, when the groove 21 is provided in the shaft hole 22 of the bearing 14 'and the axial ridge 23 is provided on the fulcrum shaft 13, the ridge 23 is displayed when the display plate 11 displays the gas pressure drop state. To fit in the groove. The groove 21 of the shaft hole 22 and the ridge 23 of the fulcrum shaft 13 may be singular.
[0018]
Next, functions of this embodiment will be described. In the figure, the valve body switching handle 10 is directed to the first inflow port 24a. That is, the valve body switching cam 4 pushes the valve rod 5 that cooperates with the valve body 8 of the first inflow port 24a through the swing link 6, opens the valve port 7, and the internal pressure of the diaphragm chamber 1 is supplied from the cylinder. The gas is at a predetermined pressure.
[0019]
When the gas in the cylinder is consumed and the gas runs out, the internal pressure of the diaphragm chamber 1 decreases. In this state, the diaphragm 2 is lowered by the bias of the spring of the diaphragm atmospheric chamber 27. When the diaphragm 2 is lowered, the displacement transmission rods 3 are both lowered, and the engaging portion 15 at the upper end engages with the force point P of the arm 12 having the display plate 11 at the end portion and pulls it down. When the force point P is lowered, the arm 12 rotates about the fulcrum shaft 13, and the display plate 11 provided at the end of the arm 12 overlaps the position of the display window 31 provided at the top of the cover 30, and the gas pressure is increased. Display a drop.
[0020]
When the gas pressure reduction state is displayed, the convex portion 20 provided on the side surface of the arm 12 is fitted into the through hole 32 provided in the bearing 14 ', and the tip of the fulcrum shaft 13 protrudes to the outside of the bearing 14' and the state is maintained. Is done. Therefore, the display does not reverse even if the gas consumption stops or the internal pressure of the diaphragm chamber 1 increases due to other environmental changes.
[0021]
When the gas pressure reduction state is indicated, the reed switch 36 is operated by the permanent magnet 34 attached in the middle of the arm 12 and an alarm device installed in the management room or the like notifies the gas out of the cylinder.
[0022]
When the valve element switching handle 10 is switched to the second inlet 24b side upon receiving the gas outage notification, the valve stem 5 is pushed in via the swing link 6, and the valve element 8 is also cooperated to open the valve port 7. The gas is supplied from the cylinder and the internal pressure of the diaphragm chamber 1 is increased. When the valve body switching handle 10 is switched from the first inflow port 24a side to the second inflow port 24b side, the arcuate standing wall 18 provided on the base 17 of the valve body switching handle 10 protrudes outside the bearing 14 '. The tip 33 of the fulcrum shaft 13 is pushed in, the convex part 20 fitted in the through hole 32 is removed, and the arm 12 having the display plate is laid down by the torsional bias of the push / torsion spring.
[0023]
When the valve body switching handle 10 is switched, the position of the valve body switching cam 4 is also changed, and the valve body 8 of the first inflow port 24 a closes the valve port 7 by the urging of the push spring 37. The cylinder on the side of the first inlet 24a that has run out of gas is replaced with a new cylinder filled with gas. However, since the valve body 8 of the first inlet 24a closes the valve port 7, the cylinder of the replaced cylinder The gas is not consumed, and the state is maintained until the valve body switching handle 10 is switched.
[0024]
【The invention's effect】
As described above, according to the present invention, once the gas pressure drop state is displayed, the state can be maintained and the gas out-of-gas state of the cylinder can be reliably notified.
[Brief description of the drawings]
FIG. 1 is a transverse sectional view of an embodiment according to the present invention. FIG. 2 is a longitudinal sectional view. FIG. 3 is a top view. FIG. 4 is a perspective view of a valve body switching handle. c) Bottom view [FIG. 5] (a) AA sectional view of FIG. 4 (a) (b) BB sectional view of FIG. 4 (a) [FIG. 6] (a) Gas pressure drop display operation description (B) Cross-sectional view of gas pressure drop display operation explanation [FIG. 7] (a) Vertical cross-sectional view of gas pressure drop display hold state explanation (b) Cross-sectional view of gas pressure drop display hold state explanation [ FIG. 8 is a cross-sectional view of a gas pressure drop display holding state explanation in another embodiment.
DESCRIPTION OF SYMBOLS 1 Diaphragm chamber 2 Diaphragm 3 Displacement transmission rod 4 Valve body switching cam 5 Valve rod 6 Swing link 7 Valve port 8 Valve body 9 Gas pressure drop display unit 10 Valve body switching handle 11 Display plate 12 Arm 13 Support shafts 14, 14 ' Bearing 15 Engagement portion 16 Push / torsion spring 17 Base 18 Arc-like standing wall 19 Bearing hole 20 Protrusion portion 21 Groove 22 Shaft hole 23 Projection 24a First inflow port 24b Second inflow port 25 Outlet port 26 Spring (of diaphragm)
27 Diaphragm atmosphere chamber 28 Boss 29 Long hole 30 Cover 31 Display window 32 Through hole 33 Tip of projecting fulcrum shaft P Force point (of arm)

Claims (2)

ダイヤフラム室（１）のガス圧変化によって変位するダイヤフラム（２）、このダイヤフラム（２）の中心を貫通し回転可能、かつ気密に取り付けられ軸方向に共動する変位伝達棒（３）、上記変位伝達棒（３）の下降によってガス圧低下を表示するガス圧低下表示部（９）を備え、上記ガス圧低下表示部（９）を、表示板（１１）を有するアーム（１２）を固着した支点軸（１３）を軸受け（１４）で支承し、変位伝達棒（３）の頂部に設けた掛合部（１５）を上記アーム（１２）の力点（Ｐ）に掛合させ、ダイヤフラム（２）の変位によって、上記掛合部（１５）がアーム（１２）の力点（Ｐ）を掛け下げて該アーム（１２）を回動させ、表示板（１１）がガス圧低下表示状態に至ると、その状態を保持する構成とした保持機能付き切替え表示調整器において、上記支点軸（１３）に押し・捩じりバネ（１６）を装着し、表示板（１１）がガス圧低下表示状態に至ると、押し・捩じりバネ（１６）の押し付勢により、軸受け（１４）と支点軸（１３）またはアーム（１２）との間に支点軸（１３）の回転を阻止する嵌め合いが生じてガス圧低下表示状態を保持するとともに、支点軸（１３）が軸方向に移動してその先端が軸受け（１４）から突出する構成としたことを特徴とする保持機能付き切替え表示調整器。 A diaphragm (2) that is displaced by a change in gas pressure in the diaphragm chamber (1) , a displacement transmission rod (3) that is rotatable and airtightly mounted through the center of the diaphragm (2) , and that moves in the axial direction. A gas pressure drop display unit (9) for displaying a gas pressure drop by lowering of the transmission rod (3) is provided , and the arm (12) having a display plate (11 ) is fixed to the gas pressure drop display unit (9) . The fulcrum shaft (13) is supported by the bearing (14) , and the engaging portion (15) provided on the top of the displacement transmission rod (3 ) is engaged with the force point (P) of the arm (12) , so that the diaphragm (2) the displacement, the engaging portion (15) rotates the power point the arm (12) is lowered over the (P) of the arm (12), the panel (11) reaches the gas pressure drop display state, the state switching with configuration as the holding function of holding the In the display adjuster, when the push / torsion spring (16) is mounted on the fulcrum shaft (13) and the display plate (11) reaches the gas pressure drop display state, the push / torsion spring (16). As a result of the urging force, a fitting that prevents the rotation of the fulcrum shaft (13) occurs between the bearing (14) and the fulcrum shaft (13) or the arm (12), and the gas pressure reduction display state is maintained. A switching display adjuster with a holding function, characterized in that the fulcrum shaft (13) moves in the axial direction and its tip protrudes from the bearing (14). 上記保持機能付き切替え表示調整器において、弁体切替えハンドル（１０）が回されるとき、弁体切替えハンドル（１０）の基板（１７）に設けられた円弧状立て壁（１８）が、軸受け（１４）から突出した支点軸（１３）の先端（３３）を押し戻し、押し・捩じりバネ（１６）の捩じり付勢により表示板（１１）を有するアーム（１２）を倒伏させる機構を付加してなることを特徴とする請求項１に記載の保持機能付き切替え表示調整器。In the switching display adjuster with a holding function, when the valve body switching handle (10) is rotated, the arcuate vertical wall (18) provided on the substrate (17) of the valve body switching handle (10 ) is provided with a bearing ( 14) A mechanism that pushes back the tip (33) of the fulcrum shaft (13) protruding from 14) and lies down the arm (12) having the display plate (11) by the torsional bias of the push / torsion spring (16). The switching display adjuster with a holding function according to claim 1, which is added.
JP04583597A 1997-02-28 1997-02-28 Switching display adjuster with holding function Expired - Lifetime JP3808158B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP04583597A JP3808158B2 (en) 1997-02-28 1997-02-28 Switching display adjuster with holding function
KR1019970059682A KR100222516B1 (en) 1997-02-28 1997-11-13 Change-over display controller with holding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04583597A JP3808158B2 (en) 1997-02-28 1997-02-28 Switching display adjuster with holding function

Publications (2)

Publication Number Publication Date
JPH10238651A JPH10238651A (en) 1998-09-08
JP3808158B2 true JP3808158B2 (en) 2006-08-09

Family

ID=12730289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04583597A Expired - Lifetime JP3808158B2 (en) 1997-02-28 1997-02-28 Switching display adjuster with holding function

Country Status (2)

Country Link
JP (1) JP3808158B2 (en)
KR (1) KR100222516B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100490489B1 (en) * 2000-03-14 2005-05-17 가부시키가이샤 기츠 Electric actuator and fixing structure of the actuator
JP7156853B2 (en) * 2018-08-10 2022-10-19 矢崎エナジーシステム株式会社 gas switching device

Also Published As

Publication number Publication date
JPH10238651A (en) 1998-09-08
KR100222516B1 (en) 1999-10-01
KR19980070090A (en) 1998-10-26

Similar Documents

Publication Publication Date Title
DE69423879T2 (en) Plate valve
JP3808158B2 (en) Switching display adjuster with holding function
JP3235642U (en) Flow monitoring device for liquefied gas tank
BE1002366A3 (en) THERMAL CONTROL VALVE.
US3284061A (en) Carburetor
WO2003033949A1 (en) A rotatory magnet valve
US3987679A (en) Valve actuating mechanism
JP2009041299A (en) Hinge with thermoelement
KR101017319B1 (en) Apparatus for controlling heating power of burner
JP2559806Y2 (en) Manual operation device for valve device
KR940005175Y1 (en) Controller of boiler
KR100796324B1 (en) Pressure gauge
CN219441756U (en) Flip structure of test tube seal box
JPH0716160Y2 (en) Float type drain trap
CN219932011U (en) Clean door frame structure
NO910910D0 (en) LOW FRICTION STORAGE TAPE AND HEEY PRESSURE Gasket.
JPS5855316Y2 (en) Capacity switching device for instantaneous water heaters
CN216590008U (en) Novel bypass valve
CN214664902U (en) Air-conditioning fan convenient for opening and closing water tank
JPS6039775Y2 (en) gas meter
JP3080596U (en) Solenoid water valve
JP3645011B2 (en) Manufacturing method of double seat valve
JPS643976Y2 (en)
JPH053890Y2 (en)
JP3236531B2 (en) Membrane gas meter

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060203

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060228

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060322

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060418

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060517

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100526

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110526

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110526

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120526

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120526

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130526

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130526

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140526

Year of fee payment: 8

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term