JPH0814440A - Active pipe branch take out method and interrupting method for fluid - Google Patents
Active pipe branch take out method and interrupting method for fluidInfo
- Publication number
- JPH0814440A JPH0814440A JP6145118A JP14511894A JPH0814440A JP H0814440 A JPH0814440 A JP H0814440A JP 6145118 A JP6145118 A JP 6145118A JP 14511894 A JP14511894 A JP 14511894A JP H0814440 A JPH0814440 A JP H0814440A
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- pipe
- neck portion
- branch
- attached
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
- F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、共同溝等内の本管のガ
スの流れを止めずに、分岐する延長管を接続してガスを
取出す流体の活管分岐取出し方法及び遮断方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for branching and taking out a live tube of a fluid for taking out a gas by connecting extension tubes for branching without stopping the flow of gas in a main tube in a common groove or the like.
【０００２】[0002]
【従来の技術】従来、共同溝等内の都市ガス配管等は、
布設した後使用中に、分岐する必要が生じる場合があ
る。これは、配管を布設して数年使用した後に、共同溝
等に隣接して建造物が建てられ、その建造物に都市ガス
等を導入しようとするときに発生する。2. Description of the Related Art Conventionally, city gas pipes and the like in common grooves are
It may be necessary to diverge during use after laying. This occurs when a building is built adjacent to a common groove or the like after the pipe is laid and used for several years, and city gas or the like is to be introduced into the structure.
【０００３】そこで、従来、図１６に平面図として示す
分岐方法が行われている。すなわち、建造物９５の建造
予定地に、予め分岐洞導９２を設け、共同溝９１内に布
設した本管１から分岐管９８を取出して、前記分岐洞導
９２内に導き、この分岐管９８の端末にバルブ９９を設
けて置き、建造物が建てられ建造物内に都市ガス等を導
入する必要が生じたときに、前記バルブ９９に延長管を
接続して都市ガス等を導入する方法である。Therefore, conventionally, a branching method shown in FIG. 16 as a plan view has been performed. That is, a branch conduit 92 is provided in advance at the planned site of the building 95, the branch pipe 98 is taken out from the main pipe 1 laid in the common groove 91, and is guided into the branch conduit 92. When a building is built and it is necessary to introduce city gas or the like into the terminal by installing a valve 99 at the terminal of the terminal, an extension pipe is connected to the valve 99 to introduce city gas or the like. is there.
【０００４】そして、前記バルブ９９の周囲のバルブ室
９３は、漏れたガスによる被害を防ぐため、コンクリー
ト製の隔壁９４を設けて強固な構造物とすることが、共
同溝配管指針（社団法人日本ガス協会編）で定められて
いる。The valve chamber 93 around the valve 99 is provided with a concrete partition wall 94 in order to prevent the damage due to the leaked gas so as to have a strong structure. Gas Association)).
【０００５】また、前記の従来例と同様に、本管のガス
の流れを停止せずに、分岐する延長管を接続してガスを
取出す流体の活管分岐取出し方法として、ホットタップ
工法がある。Also, as in the above-mentioned conventional example, there is a hot tap construction method as a method for branching and taking out a live tube for a fluid for taking out gas by connecting a branching extension tube without stopping the flow of gas in the main tube. .
【０００６】前記ホットタップ工法は、本管に穿孔機を
取付け、この穿孔機で本管の穿孔する部分を外部と遮断
した状態で穿孔して、分岐する延長管を接続する工法で
ある。The hot tap construction method is a method in which a perforator is attached to the main pipe, the perforation portion of the main pipe is perforated by the perforation device in a state where the main pipe is cut off from the outside, and an extension pipe for branching is connected.
【０００７】[0007]
【発明が解決しようとする課題】前記図１６に示す方法
は、バルブ９９に延長管を接続した後は、使用すること
がない高価なバルブ９９を必要とし、コストが高くなっ
た。The method shown in FIG. 16 requires an expensive valve 99 which is not used after connecting the extension pipe to the valve 99, resulting in high cost.
【０００８】また、ホットタップ工法は、共同溝内で実
施する場合には、狭い共同溝内における穿孔機等の機械
の移動及び操作が困難であり、さらに、本管に穿孔機等
を取付けるスペースが無く適用が困難な場合が多かっ
た。When the hot tap method is carried out in a common groove, it is difficult to move and operate a machine such as a punch in a narrow common groove, and a space for mounting the punch in the main pipe. In many cases, it was difficult to apply because it was not available.
【０００９】本発明は、前記事項に鑑みなされたもので
あり、高価なバルブを必要とせずコストが安くなり、共
同溝が狭くても実施が容易である流体の活管分岐取出し
方法及び遮断方法とすることを技術的課題とする。The present invention has been made in view of the above matters, does not require an expensive valve, is low in cost, and is easy to carry out even if the joint groove is narrow. Is a technical issue.
【００１０】[0010]
【課題を解決するための手段】本発明は、前記課題を解
決するために以下の手段を採用した。本管１の配管分岐
予定箇所に分岐口３を設け、この分岐口３は、本管１・
１の間に、ティー形管２を介挿して溶接して取付けて形
成しても、また、本管１に直接穿孔して分岐口３を形成
してもよい。The present invention adopts the following means in order to solve the above problems. A branch port 3 is provided at a planned branch point of the main pipe 1, and this branch port 3 is used for the main pipe 1.
The tee-shaped tube 2 may be interposed between the two to be welded to be attached thereto, or the main tube 1 may be directly perforated to form the branch port 3.
【００１１】そして、前記分岐口３に、分岐短管７の一
方の本管側口部に設けた基部ネック部９を接続して取付
け、前記分岐短管７の他方の本管側口部には先端ネック
部１０を設ける。そして、前記基部ネック部９は、分岐
口３に溶接して接続しても、また、フランジを設けてボ
ルトとナットで接続してもよい。A base neck portion 9 provided at one main pipe side opening of the branch short pipe 7 is connected and attached to the branch pipe 3 and is attached to the other main pipe side port of the branch short pipe 7. Provides a tip neck 10. The base neck portion 9 may be connected to the branch port 3 by welding, or may be provided with a flange and connected with a bolt and a nut.
【００１２】そして、前記基部ネック部９と先端ネック
部１０には、取付けた箇所を閉塞できるストッパ３０を
取付けられるように形成する。そして、前記基部ネック
部９と先端ネック部１０へのストッパ３０の取付手段
は、図８に示すように、環状の凹溝１１の如く形成する
ことも、図１４に示すように、止着用ねじ孔８６に止着
用ボルト８７を螺入したものとすることも可能である。Then, the base neck portion 9 and the tip neck portion 10 are formed so that a stopper 30 capable of closing the attached portion can be attached. The means for attaching the stopper 30 to the base neck portion 9 and the tip neck portion 10 may be formed as an annular groove 11 as shown in FIG. 8, or as shown in FIG. The fastening bolt 87 may be screwed into the hole 86.
【００１３】そして、基部ネック部９にストッパ３０を
取付けて分岐口３を閉塞する。そして、前記基部ネック
部９に対するストッパ３０の取付けは、ストッパ着脱機
６３を用いてもよく、また、まだ本管１に流体を通して
いないので、ストッパ着脱機６３は使わないでも取付け
ることができる。Then, a stopper 30 is attached to the base neck portion 9 to close the branch port 3. The stopper 30 can be attached to the base neck portion 9 by using the stopper attaching / detaching machine 63. Since the fluid has not yet passed through the main pipe 1, the stopper attaching / detaching machine 63 can be attached.
【００１４】そして、本管１に流体を通して本管１を使
用する。次に、本管１に、分岐する延長管２５を接続し
ようとするときは、キャップ１９等で密閉された分岐短
管７の分岐管側口部１３に延長管２５を接続する。そし
て、この延長管２５の接続は、分岐管側口部１３に溶接
した短管２２に、延長管２５を溶接２６して接続し、或
は延長管２５を分岐管側口部１３に直接溶接して接続す
る。Then, the main pipe 1 is used by passing a fluid through the main pipe 1. Next, when trying to connect the branching extension pipe 25 to the main pipe 1, the extension pipe 25 is connected to the branching pipe side opening 13 of the branching short pipe 7 sealed with the cap 19 or the like. The extension pipe 25 is connected to the short pipe 22 welded to the branch pipe side opening 13 by welding 26 to the extension pipe 25 or by directly welding the extension pipe 25 to the branch pipe side opening 13. And connect.
【００１５】次に、ストッパ着脱機６３で、ストッパ３
０を基部ネック部９より取り外して、先端ネック部１０
に取付け、先端ネック部１０を閉塞する。そして、前記
ストッパ着脱機６３をストッパ３０より取外し、ゲート
バルブ７８を先端ネック部１０より外し、キャップ１９
を先端ネック部１０に取付ければ、本管１の流れを止め
ずに分岐が可能となる。Next, the stopper attaching / detaching machine 63 is used to stop the stopper 3
0 from the base neck 9 to remove the tip neck 10
And the front neck portion 10 is closed. Then, the stopper attaching / detaching machine 63 is removed from the stopper 30, the gate valve 78 is removed from the tip neck portion 10, and the cap 19
If is attached to the tip neck portion 10, branching is possible without stopping the flow of the main pipe 1.
【００１６】同様にして、延長管２５より流れがあると
きに、ストッパ着脱機６３を分岐短管７にゲートバルブ
７８を介して取付け、先端ネック部１０に取付けてある
ストッパ３０を、基部ネック部９に移動して取付けて、
その流れを止める遮断が可能となる。Similarly, when there is a flow from the extension pipe 25, the stopper attaching / detaching machine 63 is attached to the branch short pipe 7 through the gate valve 78, and the stopper 30 attached to the tip neck portion 10 is attached to the base neck portion. Move to 9 and attach,
It is possible to shut off the flow.
【００１７】[0017]
【作用】本発明は、本管１の配管分岐予定箇所に分岐口
３に、分岐短管７の一方の本管側口部に設けた基部ネッ
ク部９を接続し、分岐短管７の他方の本管側口部には先
端ネック部１０を設け、前記基部ネック部９と先端ネッ
ク部１０には、取付けた箇所を閉塞できるストッパ３０
を取付けられるように形成している。In the present invention, the branch neck 3 provided at one main pipe side opening of the branch short pipe 7 is connected to the branch port 3 at the planned branching point of the main pipe 1, and the other end of the branch short pipe 7 is connected. A tip neck portion 10 is provided at the main-side opening of the stopper, and the base neck portion 9 and the tip neck portion 10 have stoppers 30 capable of closing the attached positions.
Are formed so that they can be attached.
【００１８】したがって、ストッパ３０を基部ネック部
９に取付けると、本管１に流体を流してもストッパ３０
の外側へ流体が漏れない。そして、本管１より流体を分
岐し取出しが必要となったときに、分岐管側口部１３の
先の短管２２の先に、延長管２５を接続し、ストッパ着
脱機６３で、ストッパ３０を基部ネック部９より取り外
して、先端ネック部１０に取付け、先端ネック部１０を
ストッパ３０で閉塞する。Therefore, if the stopper 30 is attached to the base neck portion 9, even if a fluid is made to flow into the main pipe 1, the stopper 30 will be provided.
Does not leak to the outside of the. When the fluid is branched from the main pipe 1 and needs to be taken out, the extension pipe 25 is connected to the tip of the short pipe 22 at the tip of the branch pipe side opening 13, and the stopper 30 Is removed from the base neck portion 9, attached to the tip neck portion 10, and the tip neck portion 10 is closed by the stopper 30.
【００１９】そうすると、本管１の流体は延長管２５に
流れる。そして、前記基部ネック部９を閉塞するストッ
パ３０は、単に流れを止め、そして、取り外して流路を
開くものであるので、バルブに比較してコストの安いも
のとなる。Then, the fluid in the main pipe 1 flows into the extension pipe 25. Further, the stopper 30 for closing the base neck portion 9 simply stops the flow and then removes it to open the flow path, so that the cost is lower than that of the valve.
【００２０】又、逆に本管１の流体が延長管２５に流れ
ている状態で、ストッパ３０を、ストッパ着脱機６３を
用いて、先端ネック部１０より基部ネック部９へ移すこ
とにより流れを遮断することができる。On the contrary, while the fluid in the main pipe 1 is flowing in the extension pipe 25, the stopper 30 is moved from the tip neck portion 10 to the base neck portion 9 by using the stopper attaching / detaching machine 63, so that the flow can be improved. Can be shut off.
【００２１】[0021]
【実施例】以下図に基づいて、本発明の実施例の説明を
する。図１乃至図１３は、本発明の一実施例の説明用の
図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 13 are diagrams for explaining one embodiment of the present invention.
【００２２】この実施例で使用される分岐短管７は、図
８に示すように、ティー形管の本管方向に、基部ネック
部９と先端ネック部１０を溶接して設けてあり、この基
部ネック部９と先端ネック部１０の内面には、円周方向
に環状の凹溝１１が設けてあり、この凹溝１１は、後記
するストップ板４３の先端が係合する凹溝１１に形成さ
れている。As shown in FIG. 8, the branch short pipe 7 used in this embodiment is provided by welding a base neck portion 9 and a tip neck portion 10 in the main pipe direction of the tee pipe. An annular groove 11 is provided on the inner surfaces of the base neck portion 9 and the tip neck portion 10 in the circumferential direction. The groove 11 is formed in the groove 11 with which the tip of a stop plate 43 described later engages. Has been done.
【００２３】そして、前記先端ネック部１０の端面に
は、数個のねじ孔１２が設けてあり、また、分岐短管７
には、分岐管側口部１３が設けてある。前記分岐短管７
の基部ネック部９と先端ネック部１０に取付けられるこ
とのできるストッパ３０は、図９乃至図１３に示され、
大きく分けて、シール本体３２、本体Ｏリング３４、ス
トップ板４３、回転軸５３からなっている。The end surface of the tip neck portion 10 is provided with several screw holes 12, and the branch short pipe 7 is provided.
A branch pipe side opening 13 is provided in the. The branch short pipe 7
A stopper 30 that can be attached to the base neck 9 and the tip neck 10 of the is shown in FIGS.
The seal main body 32, the main body O-ring 34, the stop plate 43, and the rotary shaft 53 are roughly classified.
【００２４】前記シール本体３２は、金属製で円板状に
形成され、外周に環状溝３３が設けてあり、この環状溝
３３には、前記基部ネック部９及び先端ネック部１０の
内側に嵌入して密閉する本体Ｏリング３４が嵌入されて
いる。The seal main body 32 is made of metal and has a disc shape, and an annular groove 33 is provided on the outer periphery thereof. The annular groove 33 is fitted inside the base neck portion 9 and the tip neck portion 10. A main body O-ring 34 that is then sealed is fitted.
【００２５】そして、シール本体３２の上面には、ばね
４８の入る円形の凹所３５が設けてあり、この凹所３５
の中央には、回転軸５３の螺入される雌ねじ孔３６が設
けてあり、この雌ねじ孔３６の上部は、雌ねじ孔３６よ
り大径の円形に形成されたＯリング挿入部３７に形成さ
れている。さらに、前記シール本体３２の上面の周縁部
には、小ねじ孔３８が４箇所に設けてある。A circular recess 35 into which the spring 48 is inserted is provided on the upper surface of the seal body 32.
A female screw hole 36 into which the rotary shaft 53 is screwed is provided at the center of the, and the upper portion of the female screw hole 36 is formed in an O-ring insertion portion 37 formed in a circular shape having a larger diameter than the female screw hole 36. There is. Further, small screw holes 38 are provided at four positions on the peripheral portion of the upper surface of the seal body 32.
【００２６】前記シール本体３２に装着されるストップ
板４３は、図９、図１１及び図１２に示されるように、
半月状の金属製の円弧状板２枚で一対となるようにして
形成されている。このストップ板４３には、それぞれ円
弧状切欠部４９の近くに、上方に突出する部分が設けて
あり、この突出部分の内側は、下方が内側に突出する傾
斜面４６に形成されている。The stop plate 43 mounted on the seal body 32 is, as shown in FIGS. 9, 11 and 12,
Two half-moon metal arc-shaped plates are formed so as to form a pair. Each of the stop plates 43 is provided with a portion projecting upward in the vicinity of the arcuate notch 49, and the inside of the projecting portion is formed as an inclined surface 46 whose lower portion projects inward.
【００２７】そして、前記ストップ板４３には、それぞ
れ、２個１組の長孔４４が設けてあり、さらに、ストッ
プ板４３の下面には、図９及び図１２に示すように、そ
れぞれ２個のピン４７が設けてある。Each of the stop plates 43 is provided with a pair of long holes 44, and the bottom surface of the stop plate 43 has two holes as shown in FIGS. 9 and 12. Pins 47 are provided.
【００２８】前記２枚のストップ板４３は、図９及び図
１３に示すように、シール本体３２の上面に小ねじ４５
によって保持され、そして、前記２枚のストップ板４３
は、ピン４７間に張設されたばね４８によって、それぞ
れ内側に引っ張られ、前記長孔４４の長手方向に長孔４
４の長さ分だけ摺動でき、さらに、前記小ねじ４５を締
め付けることによって、固定されるように形成されてい
る。As shown in FIGS. 9 and 13, the two stop plates 43 have small screws 45 on the upper surface of the seal body 32.
Held by the two stop plates 43
Are pulled inward by springs 48 stretched between the pins 47, and the long holes 4 are extended in the longitudinal direction of the long holes 44.
It is slidable by the length of 4 and is fixed by tightening the machine screw 45.
【００２９】そして、前記シール本体３２の雌ねじ孔３
６には、図９及び図１３に示すように、回転軸５３が螺
合されている。この回転軸５３は、上端部に連結用雄ね
じ５８が設けてあり、そして、回転軸５３の上部近くに
は、両側方に突出するアーム５７が設けてあり、回転軸
５３の前記アーム５７を設けた部分の下方には、下方が
小径となる逆円錐状部５６が設けてあり、この逆円錐状
部５６は、前記ストップ板４３の傾斜面４６に当接する
ように形成してある。Then, the female screw hole 3 of the seal body 32 is formed.
As shown in FIG. 9 and FIG. 13, a rotary shaft 53 is screwed onto the shaft 6. The rotating shaft 53 is provided with a connecting male screw 58 at the upper end thereof, and an arm 57 projecting to both sides is provided near the upper part of the rotating shaft 53, and the arm 57 of the rotating shaft 53 is provided. An inverted conical portion 56 having a smaller diameter on the lower side is provided below the open portion, and the inverted conical portion 56 is formed so as to contact the inclined surface 46 of the stop plate 43.
【００３０】また、前記回転軸５３の逆円錐状部５６の
下方の外周には、凹溝が設けられ、Ｏリング５５が装着
されている。そして、前記回転軸５３の、前記連結用雄
ねじ５８と同一巻き方向に形成した雄ねじ５４が、シー
ル本体３２の雌ねじ孔３６にねじ込まれ、逆円錐状部５
６が傾斜面４６に当接して、ストップ板４３を押し広げ
た位置で、前記Ｏリング５５が、シール本体３２の前記
Ｏリング挿入部３７に押込まれ、この部分を密封するよ
うに形成してある。A concave groove is formed on the outer periphery of the inverted conical portion 56 of the rotary shaft 53, and an O-ring 55 is attached to the groove. Then, the male screw 54 of the rotary shaft 53 formed in the same winding direction as the male screw 58 for connection is screwed into the female screw hole 36 of the seal body 32, and the inverted conical portion 5 is formed.
The O-ring 55 is pushed into the O-ring insertion portion 37 of the seal main body 32 at a position where the stop ring 43 is pushed open by contacting the inclined surface 46 with the stopper 6 and is formed to seal this portion. is there.
【００３１】前記ストッパ３０を分岐短管７に着脱する
ストッパ着脱機６３は、図１３に示すように、ハウジン
グ６４を備え、このハウジング６４は、ゲートバルブ７
８を介して分岐短管７にハウジング６４を取付けるとき
使用するボルト等の挿通孔６５を設け、そして、ハウジ
ング６４の中央部には、外嵌軸７３が回動及び上下動可
能に嵌挿され、そして、この外嵌軸７３とハウジング６
４は、Ｏリングで密封されている。A stopper attaching / detaching machine 63 for attaching / detaching the stopper 30 to / from the branch short pipe 7 is provided with a housing 64, as shown in FIG.
An insertion hole 65 such as a bolt used when the housing 64 is attached to the branch short pipe 7 via 8 is provided, and an outer fitting shaft 73 is fitted in the central portion of the housing 64 so as to be rotatable and vertically movable. , And the external fitting shaft 73 and the housing 6
4 is sealed with an O-ring.
【００３２】そして、前記外嵌軸７３の下端には、前記
回転軸５３のアーム５７が上下摺動可能に挿入される一
対の縦溝７４が設けてある。そして、前記外嵌軸７３に
は、中心軸６８が回動及び上下動可能に挿入され、この
中心軸６８と外嵌軸７３の間は、Ｏリングで密封されて
いる。そして、前記中心軸６８の下端には、連結用雌ね
じ６９が設けてあり、この連結用雌ねじ６９に、回転軸
５３の雄ねじ５８が螺合するように形成されている。そ
して、前記連結用雄ねじ５８と連結用雌ねじ６９は、い
ずれの側を雄ねじとしてもよい。A pair of vertical grooves 74, into which the arm 57 of the rotary shaft 53 is vertically slidable, is provided at the lower end of the outer fitting shaft 73. A center shaft 68 is rotatably and vertically movable into the outer fitting shaft 73, and an O-ring is sealed between the center shaft 68 and the outer fitting shaft 73. A female screw 69 for connection is provided at the lower end of the central shaft 68, and a male screw 58 of the rotary shaft 53 is screwed onto the female screw 69 for connection. Further, either side of the connecting male screw 58 and the connecting female screw 69 may be a male screw.
【００３３】前記ストッパ着脱機６３でストッパ３０
を、分岐短管７の基部ネック部９又は先端ネック部１０
に取付けるには、図１３に示すように、中心軸６８を回
転させて、連結用雄ねじ５８に連結用雌ねじ６９を螺合
したあと、ストッパ３０の回転軸５３に設けたアーム５
７を、外嵌軸７３の縦溝７４に挿入する。The stopper attaching / detaching machine 63 is used for the stopper 30.
Is the base neck portion 9 or the tip neck portion 10 of the branch short pipe 7.
13, the central shaft 68 is rotated, the connecting male screw 58 is screwed into the connecting female screw 69, and then the arm 5 provided on the rotating shaft 53 of the stopper 30 is mounted.
7 is inserted into the vertical groove 74 of the outer fitting shaft 73.
【００３４】そして、前記ストッパ３０を取付けたスト
ッパ着脱機６３を、図２又は図６に示すように、分岐短
管７の先端ネック部１０に、図示してないボルト又はボ
ルトとナットにより、ゲートバルブ７８を介して取付け
る。Then, as shown in FIG. 2 or 6, the stopper attaching / detaching machine 63 to which the stopper 30 is attached is attached to the tip neck portion 10 of the branch short pipe 7 by a bolt or bolt and nut (not shown). Attach via valve 78.
【００３５】そして、ストップ板４３の先端が基部ネッ
ク部９又は先端ネック部１０の環状の凹溝１１の内側に
ある位置まで、中心軸６８と外嵌軸７３を押し込み、シ
ール本体３２の環状溝３３に嵌合した本体Ｏリング３４
を、基部ネック部９又は先端ネック部１０に密嵌する。Then, the center shaft 68 and the outer fitting shaft 73 are pushed until the tip of the stop plate 43 is located inside the annular recessed groove 11 of the base neck portion 9 or the tip neck portion 10, and the annular groove of the seal body 32 is pushed. Body O-ring 34 fitted to 33
Is tightly fitted to the base neck portion 9 or the tip neck portion 10.
【００３６】次に、中心軸６８と外嵌軸７３を回転させ
ると、シール本体３２は環状溝３３に嵌合した本体Ｏリ
ング３４が、基部ネック部９等に密嵌され押さえられて
いるので、回転軸５３の雄ねじ５４は、シール本体３２
の雌ねじ孔３６にねじ込まれて押し込まれる。Next, when the center shaft 68 and the outer fitting shaft 73 are rotated, the main body O-ring 34 fitted in the annular groove 33 of the seal main body 32 is tightly fitted and held by the base neck portion 9 and the like. , The male screw 54 of the rotary shaft 53 is the seal main body 32.
It is screwed into the female screw hole 36 of and is pushed in.
【００３７】そうすると、回転軸５３の逆円錐状部５６
が、ストップ板４３の傾斜面４６を押して、ストップ板
４３を外側に押し出し、ストップ板４３の先端を前記基
部ネック部９又は先端ネック部１０の環状の凹溝１１に
嵌入して、ストッパ３０が上下方向に移動しないように
固定する。Then, the inverted conical portion 56 of the rotary shaft 53 is formed.
However, the inclined surface 46 of the stop plate 43 is pushed to push the stop plate 43 outward, and the tip of the stop plate 43 is fitted into the annular recessed groove 11 of the base neck portion 9 or the tip neck portion 10 to make the stopper 30 Fix it so that it does not move vertically.
【００３８】そうすると、シール本体３２の環状溝３３
に嵌入した本体Ｏリング３４が、シール本体３２と基部
ネック部９又は先端ネック部１０との間を密封する。そ
して、回転軸５３の凹溝に嵌入したＯリング５５が、シ
ール本体３２の雌ねじ孔３６の上部に設けたＯリング挿
入部３７に挿入され、雌ねじ孔３６と雄ねじ５４の螺合
部を密封する。Then, the annular groove 33 of the seal body 32 is formed.
A body O-ring 34 fitted in the seal seals between the seal body 32 and the base neck portion 9 or the tip neck portion 10. Then, the O-ring 55 fitted in the groove of the rotary shaft 53 is inserted into the O-ring insertion portion 37 provided above the female screw hole 36 of the seal body 32 to seal the screwed portion of the female screw hole 36 and the male screw 54. .
【００３９】次に、外嵌軸７３を回動しないように保持
し、中心軸６８を脱方向に回転させて連結用雄ねじ５８
から連結用雌ねじ６９を螺脱し、ストッパ着脱機６３と
ゲートバルブ７８を分岐短管７より取外す。Next, the outer fitting shaft 73 is held so as not to rotate, and the central shaft 68 is rotated in the releasing direction to connect the male screw 58 for connection.
The connecting female screw 69 is unscrewed from, and the stopper attaching / detaching machine 63 and the gate valve 78 are removed from the branch short pipe 7.
【００４０】そして、小ねじ４５をねじ込むと、ストッ
プ板４３は、回転軸５３の逆円錐状部５６と、前記小ね
じ４５によって２箇所で固定される。前記ストッパ着脱
機６３でストッパ３０を、分岐短管７の基部ネック部９
又は先端ネック部１０から取り外すには、例えば、図３
に示すように、基部ネック部９にストッパ３０が固定さ
れているとき、分岐短管７の先端ネック部１０からフラ
ンジ付閉塞板１８などを取り除くと共に、ストップ板４
３を固定している小ねじ４５を緩める。Then, when the small screw 45 is screwed in, the stop plate 43 is fixed at the two positions by the inverted conical portion 56 of the rotary shaft 53 and the small screw 45. The stopper attaching / detaching machine 63 is used to attach the stopper 30 to the base neck portion 9 of the branch short pipe 7.
Alternatively, for removing from the tip neck portion 10, for example, as shown in FIG.
As shown in FIG. 3, when the stopper 30 is fixed to the base neck portion 9, the flanged closing plate 18 and the like are removed from the tip neck portion 10 of the branch short pipe 7, and the stop plate 4 is removed.
Loosen the machine screw 45 fixing 3 in place.
【００４１】そして、先端ネック部１０に、図５に示す
ように、ゲートバルブ７８を介して、ストッパ着脱機６
３を取付ける。そして、外嵌軸７３と中心軸６８を押し
込み、外嵌軸７３の縦溝７４に回転軸５３のアーム５７
を挿入して回転軸５３を外嵌軸７３で回動しないように
保持し、回転軸５３の連結用雄ねじ５８に、中心軸６８
の連結用雌ねじ６９を螺合して連結し、外嵌軸７３と中
心軸６８を脱方向に回転させると、回転軸５３は周方向
に回転する。Then, as shown in FIG. 5, the stopper attaching / detaching machine 6 is attached to the tip neck portion 10 via a gate valve 78.
Install 3. Then, the outer fitting shaft 73 and the central shaft 68 are pushed in, and the arm 57 of the rotary shaft 53 is inserted into the vertical groove 74 of the outer fitting shaft 73.
Is inserted to hold the rotary shaft 53 against rotation by the outer fitting shaft 73, and the connecting male screw 58 of the rotary shaft 53 is attached to the central shaft 68.
When the female screw 69 for connection is screwed and connected, and the outer fitting shaft 73 and the central shaft 68 are rotated in the releasing direction, the rotating shaft 53 rotates in the circumferential direction.
【００４２】そうすると、回転軸５３は、シール本体３
２から少し抜け出し、逆円錐状部５６がストップ板４３
の傾斜面４６から離れる向きに移動し、ストップ板４３
はばね４８に引き寄せられて、環状の凹溝１１から抜け
出すが、回転軸５３の連結用雄ねじ５８は中心軸６８の
連結用雌ねじ６９に螺着されており、シール本体３２の
雌ねじ孔３６に回転軸５３の雄ねじ５４が螺合している
ので、中心軸６８を引き出すことによって、ストッパ３
０を基部ネック部９又は先端ネック部１０から取り外す
ことができる。Then, the rotary shaft 53 is attached to the seal body 3
A little out of 2 and the inverted conical portion 56 is the stop plate 43.
Of the stop plate 43.
Is pulled out of the annular groove 11 by the spring 48, but the connecting male screw 58 of the rotary shaft 53 is screwed to the connecting female screw 69 of the central shaft 68, and is rotated in the female screw hole 36 of the seal body 32. Since the male screw 54 of the shaft 53 is screwed, the stopper 3 is pulled out by pulling out the central shaft 68.
0 can be removed from the base neck 9 or the tip neck 10.
【００４３】図１４と図１５は、分岐短管７とストッパ
３０の別の例を示すものである。そして、さきの例と同
様の部分は同一の符号を用い説明を省略した。この例の
分岐短管７は、基部ネック部９と先端ネック部１０のそ
れぞれ２箇所に、止着用ねじ孔８６を設け、この止着用
ねじ孔８６に止着用ボルト８７を螺合したものである。
そして、前記止着用ねじ孔８６は、それぞれ、３箇所以
上に設けてもよい。なお前記止着用ボルト８７には密封
構造がとられ、外部とシールされている（図省略）。14 and 15 show another example of the branch short pipe 7 and the stopper 30. The same parts as those in the previous example are designated by the same reference numerals and the description thereof is omitted. In the branched short pipe 7 of this example, fastening screw holes 86 are provided at two positions each of the base neck portion 9 and the tip neck portion 10, and fastening bolts 87 are screwed into the fastening screw holes 86. .
The fastening screw holes 86 may be provided at three or more locations, respectively. The fastening bolt 87 has a sealing structure, which is sealed from the outside (not shown).
【００４４】そして、図１５に示すストッパ３０は、ス
トッパ３０の上面に直接に連結用ねじ８３を設け、スト
ッパ３０の外周には、前記分岐短管７の止着用ボルト８
７の先端が挿入される止着用凹溝８２が設けてある。The stopper 30 shown in FIG. 15 is provided with a connecting screw 83 directly on the upper surface of the stopper 30, and the fastening bolt 8 for the branch short pipe 7 is provided on the outer periphery of the stopper 30.
A fastening groove 82 into which the tip of 7 is inserted is provided.
【００４５】そして、このストッパ３０は、図１３に示
されるストッパ着脱機６３から外嵌軸７３を除いた形状
のストッパ着脱機６３で基部ネック部等に取付けること
ができるものである。The stopper 30 can be attached to the base neck portion or the like by the stopper attaching / detaching machine 63 shown in FIG. 13 having a shape obtained by removing the external fitting shaft 73.
【００４６】すなわち、ハウジング６４と中心軸６８を
備えたストッパ着脱機６３の中心軸６８に設けた連結用
雌ねじ６９に、ストッパ３０の連結用ねじ８３を螺合
し、このストッパ着脱機６３を、前記図１４に示す分岐
短管７の先端ネック部１０に取付け、中心軸６８を分岐
短管７に押し込み、ストッパ３０を基部ネック部９等に
嵌入し、分岐短管７の外側から止着用ボルト８７をねじ
込んで、先端をストッパ３０の止着用凹溝８２に挿入し
て、ストッパ３０を基部ネック部９等に上下動不能に止
着する。That is, the connecting screw 83 of the stopper 30 is screwed into the connecting female screw 69 provided on the center shaft 68 of the stopper attaching / detaching device 63 having the housing 64 and the central shaft 68, and the stopper attaching / detaching device 63 is 14 is attached to the tip neck portion 10 of the branch short pipe 7, the central shaft 68 is pushed into the branch short pipe 7, the stopper 30 is fitted into the base neck portion 9 and the like, and the fastening bolt is attached from the outside of the branch short pipe 7. 87 is screwed in, the tip is inserted into the fastening groove 82 of the stopper 30, and the stopper 30 is fastened to the base neck 9 and the like so as not to move vertically.
【００４７】次に、本発明の一実施例の流体の活管分岐
取出し方法について述べる。この実施例は、共同溝内に
都市ガス用の本管１を布設する。そして、この本管１の
配管分岐予定箇所に、図１に示すように、分岐口３を備
えたティー形管２を挿入して溶接し、分岐口３を形成す
る。なお、前記分岐口３は、ティー形管２を使わずに、
本管１に穿孔し、この穿孔した孔に短かい管を溶接する
などしても形成できるものである。Next, a method for branching and taking out a live tube of a fluid according to an embodiment of the present invention will be described. In this embodiment, the main pipe 1 for city gas is laid in the common groove. Then, as shown in FIG. 1, a tee-shaped pipe 2 having a branch port 3 is inserted into the main pipe 1 at a planned pipe branching position and welded to form the branch port 3. The branch port 3 does not use the tee tube 2
It can also be formed by boring the main pipe 1 and welding a short pipe to the bored hole.
【００４８】そして、前記分岐口３に、図８に示す分岐
短管７の一方の本管側口部に溶接して設けた基部ネック
部９を溶接して取付ける。そして、前記分岐短管７の他
方の本管側口部には、先端ネック部１０を溶接して取付
ける。Then, a base neck portion 9 provided by welding to one main pipe side opening portion of the branch short pipe 7 shown in FIG. 8 is attached to the branch port 3 by welding. Then, the tip neck portion 10 is attached by welding to the other main pipe side opening portion of the branch short pipe 7.
【００４９】そして、前記基部ネック部９と先端ネック
部１０の内周には、環状の凹溝１１を設け、ストッパ３
０を取付けた箇所を閉塞できるストッパ３０を取付けら
れるように形成する。An annular groove 11 is provided in the inner circumference of the base neck portion 9 and the tip neck portion 10, and the stopper 3
The stopper 30 that can close the position where 0 is attached is formed so that it can be attached.
【００５０】そして、前記分岐短管７の分岐管側口部１
３は、前記分岐口３をストッパ３０で閉塞するので、開
放状態のままとすることも可能である。しかしながら、
ガス漏れの虞れをなくし、より安全にするためには、前
記分岐管側口部１３に短管２２を溶接して接続し、この
短管２２の他端にキャップ１９を溶接して閉塞する。The branch pipe side opening portion 1 of the branch short pipe 7 is provided.
Since the branch opening 3 is closed by the stopper 30, the branch opening 3 can be left open. However,
In order to eliminate the risk of gas leakage and make it safer, a short pipe 22 is welded and connected to the branch pipe side opening 13, and a cap 19 is welded to the other end of the short pipe 22 to close it. .
【００５１】そして、前記基部ネック部９と先端ネック
部１０へのストッパ３０の取付けは、図１４，図１５に
示すように、基部ネック部９と先端ネック部１０のそれ
ぞれの部分の少なくとも２箇所に、止着用ねじ孔８６を
設け、この止着用ねじ孔８６に止着用ボルト８７を螺入
し、この止着用ボルト８７の先端をストッパ３０の止着
用凹溝８２に挿入して、ストッパ３０を取付けるように
してもよい。As shown in FIGS. 14 and 15, the stoppers 30 are attached to the base neck portion 9 and the tip neck portion 10 at least at two positions on each of the base neck portion 9 and the tip neck portion 10. Is provided with a fastening screw hole 86, a fastening bolt 87 is screwed into the fastening screw hole 86, the tip of the fastening bolt 87 is inserted into the fastening groove 82 of the stopper 30, and the stopper 30 is fixed. It may be attached.
【００５２】そして、前記基部ネック部９に図９に示す
ストッパ３０を取付けて分岐口３を閉塞する。そして、
前記基部ネック部９に対するストッパ３０の取付けは、
ストッパ着脱機６３を用いてもよく、また、まだ本管１
に都市ガスを通していないので、ストッパ着脱機６３を
使わないでも取付けることもできる。Then, a stopper 30 shown in FIG. 9 is attached to the base neck portion 9 to close the branch port 3. And
The stopper 30 is attached to the base neck portion 9 by
The stopper attachment / detachment machine 63 may be used, and the main tube 1 is still used.
Since city gas is not passed through, it can be attached without using the stopper attaching / detaching machine 63.
【００５３】そして、ストッパ着脱機６３の取付けは、
まず、分岐短管７の先端ネック部１０に、図示してない
ボルト又はボルトとナットで、ゲートバルブ７８を取付
け、このゲートバルブ７８に前記ストッパ着脱機６３
を、図示してないボルト又はボルトとナットで取付け
る。そして、ストッパ着脱機６３をゲートバルブ７８に
取付けるとき、ゲートバルブ７８を閉塞しておくと、ス
トッパ着脱機６３の中心軸６８に取付けたストッパ３０
を、閉塞したゲートバルブ７８の上に載置してストッパ
着脱機６３の取付けができて便利である。The stopper attaching / detaching machine 63 is attached as follows.
First, a gate valve 78 is attached to the tip neck portion 10 of the branch short pipe 7 with a bolt or a bolt and a nut (not shown), and the stopper attaching / detaching machine 63 is attached to the gate valve 78.
With bolts or bolts and nuts not shown. Then, when the stopper attaching / detaching machine 63 is attached to the gate valve 78, if the gate valve 78 is closed, the stopper 30 attached to the central shaft 68 of the stopper attaching / detaching machine 63.
Can be mounted on the closed gate valve 78 to attach the stopper attaching / detaching machine 63, which is convenient.
【００５４】また、前記ストッパ着脱機６３は、直接分
岐短管７の先端ネック部１０に取付けることも可能であ
る。そして、図１３に示すように、ストッパ着脱機６３
の外嵌軸７３の縦溝７４に、回転軸５３のアーム５７を
挿入し、中心軸６８に設けた連結用雌ねじ６９に、スト
ッパ３０の回転軸５３に設けた連結用雄ねじ５８を螺合
して、ストッパ着脱機６３にストッパ３０を取付ける。Further, the stopper attaching / detaching machine 63 can be directly attached to the tip neck portion 10 of the branch short pipe 7. Then, as shown in FIG.
The arm 57 of the rotating shaft 53 is inserted into the vertical groove 74 of the outer fitting shaft 73 of the above, and the connecting male screw 58 provided on the rotating shaft 53 of the stopper 30 is screwed to the connecting female screw 69 provided on the central shaft 68. Then, the stopper 30 is attached to the stopper attaching / detaching machine 63.
【００５５】前記のようにしてストッパ３０を取付けた
ストッパ着脱機６３を、先端ネック部１０に直接に、或
はゲートバルブ７８を介して取付け、このストッパ着脱
機６３の中心軸６８と外嵌軸７３を、図２に示すように
押し込み、ストッパ３０の本体Ｏリング３４を基部ネッ
ク部９の内側に密嵌する。The stopper attaching / detaching machine 63 to which the stopper 30 is attached as described above is attached to the tip neck portion 10 directly or via the gate valve 78, and the central axis 68 of this stopper attaching / detaching machine 63 and the external fitting shaft. 73 is pushed in, and the main body O-ring 34 of the stopper 30 is tightly fitted inside the base neck portion 9.
【００５６】そして、図１３に示すストップ板４３の先
端が、基部ネック部９の環状の凹溝１１の内側に位置す
るように合わせる。そして、中心軸６８と外嵌軸７３を
回転させると、ストッパ３０の回転軸５３も回転する。Then, the tip end of the stop plate 43 shown in FIG. 13 is aligned so as to be located inside the annular recessed groove 11 of the base neck portion 9. When the center shaft 68 and the outer fitting shaft 73 are rotated, the rotation shaft 53 of the stopper 30 also rotates.
【００５７】そして、ストッパ３０のシール本体３２に
嵌着した本体Ｏリング３４により、前記シール本体３２
は押さえられているので、前記回転軸５３はシール本体
３２にねじ込まれ、回転軸５３の逆円錐状部５６がスト
ップ板４３の傾斜面４６に当接して、ストップ板４３を
押し広げ、ストップ板４３の先端が基部ネック部９の環
状の凹溝１１に挿入され、ストッパ３０が内外の圧力差
により、縦方向に移動するのを防止する。The seal body 32 is fitted into the seal body 32 of the stopper 30 by the body O-ring 34.
Since the rotary shaft 53 is screwed into the seal main body 32, the inverted conical portion 56 of the rotary shaft 53 abuts the inclined surface 46 of the stop plate 43 to push the stop plate 43 apart to spread the stop plate. The tip of 43 is inserted into the annular groove 11 of the base neck 9 to prevent the stopper 30 from moving vertically due to the pressure difference between the inside and the outside.
【００５８】そして、本体Ｏリング３４がシール本体３
２と基部ネック部９との間を密封し、回転軸５３の凹溝
に嵌入したＯリング５５がＯリング挿入部３７に挿入さ
れ、雌ねじ孔３６と雄ねじ５４との螺合部を密封する。The main body O-ring 34 is the seal main body 3
The O-ring 55 that seals between the 2 and the base neck portion 9 and is fitted into the groove of the rotary shaft 53 is inserted into the O-ring insertion portion 37, and seals the threaded portion between the female screw hole 36 and the male screw 54.
【００５９】次に、外嵌軸７３を回動しないように保持
し、中心軸６８を前記と逆方向に回転させると、回転軸
５３の連結用雄ねじ５８から中心軸６８の連結用雌ねじ
６９が螺脱する。そこで、前記中心軸６８と外嵌軸７３
を引出し、ストッパ３０は基部ネック部９に止着された
状態で残る。Next, when the outer fitting shaft 73 is held so as not to rotate and the central shaft 68 is rotated in the opposite direction, the connecting male screw 58 of the rotating shaft 53 to the connecting female screw 69 of the central shaft 68 is changed. Unscrew. Therefore, the central shaft 68 and the external fitting shaft 73
And the stopper 30 remains attached to the base neck portion 9.
【００６０】そこで、ゲートバルブ７８とストッパ着脱
機６３を分岐短管７から外す。そうすると、この状態で
も本管１にガスを通すことができるが、図９に示す小ね
じ４５を締め付けると、ストップ板４３は、さらに確実
に固定される。Therefore, the gate valve 78 and the stopper attaching / detaching machine 63 are removed from the branch short pipe 7. Then, gas can be passed through the main pipe 1 even in this state, but the stop plate 43 is more securely fixed by tightening the machine screw 45 shown in FIG.
【００６１】そして、すでに述べたように、分岐口３
は、ストッパ３０で密封されているが、分岐短管７の先
端ネック部１０に図３に示すようにフランジ付閉塞板１
８を、図示してないパッキンを介してボルトで取付ける
と、分岐口３はさらに密封される。Then, as described above, the branch port 3
Is sealed by the stopper 30, but the flanged closing plate 1 is attached to the tip neck portion 10 of the branch short pipe 7 as shown in FIG.
When 8 is attached with a bolt through a packing (not shown), the branch port 3 is further sealed.
【００６２】そして、本管１に接続する分岐短管７は、
一般に図４に示すように多数設ける。前記の状態で本管
１に都市ガスを通して使用する。The branch short pipe 7 connected to the main pipe 1 is
Generally, a large number are provided as shown in FIG. In the above state, city gas is passed through the main pipe 1 for use.
【００６３】そして、本管１に都市ガスを通していると
き、分岐短管７に延長管２５を接続して、この延長管２
５にも都市ガスを通そうとするには、図５に示すよう
に、まず、短管２２からキャップ１９を除き、この短管
２２に延長管２５を溶接２６して接続する。When the city gas is being passed through the main pipe 1, the extension pipe 25 is connected to the branch short pipe 7 and the extension pipe 2 is connected.
In order to pass the city gas also through 5, as shown in FIG. 5, first, the cap 19 is removed from the short pipe 22, and the extension pipe 25 is connected to the short pipe 22 by welding 26.
【００６４】そして、分岐短管７の先端ネック部１０か
らフランジ付閉塞板１８（図３）などを除き、ストップ
板４３を固定していた小ねじ４５を緩め、先端ネック部
１０にストッパ着脱機６３を直接に、或はゲートバルブ
７８を介して取付ける。Then, the flanged closing plate 18 (FIG. 3) and the like are removed from the tip neck portion 10 of the branch short pipe 7, and the machine screws 45 fixing the stop plate 43 are loosened, and the stopper attaching / detaching machine is attached to the tip neck portion 10. 63 is attached directly or via a gate valve 78.
【００６５】次に、外嵌軸７３と中心軸６８を押し込ん
で、外嵌軸７３の縦溝７４にストッパ３０の回転軸５３
に設けたアーム５７を挿入して係合し（図５，図１
３）、中心軸６８の連結用雌ねじ６９を、回転軸５３の
連結用雄ねじ５８に螺合する。Next, the outer fitting shaft 73 and the central shaft 68 are pushed in, and the rotary shaft 53 of the stopper 30 is inserted into the vertical groove 74 of the outer fitting shaft 73.
The arm 57 provided on the
3) The connecting female screw 69 of the central shaft 68 is screwed into the connecting male screw 58 of the rotary shaft 53.
【００６６】そして、中心軸６８と外嵌軸７３を、回転
軸５３の雄ねじ５４の螺脱する向きに回転させる。そう
すると、回転軸５３はシール本体３２から少し抜け出
し、逆円錐状部５６がストップ板４３の傾斜面４６から
離れる向きに移動する。そして、ストップ板４３はばね
４８で内側に引き寄せられ、前記環状の凹溝１１から抜
け出す。Then, the central shaft 68 and the external fitting shaft 73 are rotated in a direction in which the male screw 54 of the rotary shaft 53 is unscrewed. Then, the rotary shaft 53 slightly slips out of the seal body 32, and the inverted conical portion 56 moves in a direction away from the inclined surface 46 of the stop plate 43. Then, the stop plate 43 is pulled inward by the spring 48 and slips out of the annular groove 11.
【００６７】そこで、中心軸６８と外嵌軸７３を引き出
すと、ストッパ３０も基部ネック部９から引き出され
る。そこで、このストッパ３０のストップ板４３の先端
が、分岐短管７の先端ネック部１０の環状の凹溝１１の
内側に位置するようにして、ストッパ３０の本体Ｏリン
グ３４を、先端ネック部１０の内側に密嵌する。Then, when the central shaft 68 and the external fitting shaft 73 are pulled out, the stopper 30 is also pulled out from the base neck portion 9. Therefore, the end of the stop plate 43 of the stopper 30 is positioned inside the annular concave groove 11 of the tip neck portion 10 of the branch short pipe 7, and the main body O-ring 34 of the stopper 30 is attached to the tip neck portion 10. Fit tightly inside.
【００６８】そして、中心軸６８と外嵌軸７３を、回転
軸５３の雄ねじ５４がねじ込まれる向きに回転させ、回
転軸５３の逆円錐状部５６でストップ板４３の傾斜面４
６を押し、ストップ板４３の先端を先端ネック部１０の
環状の凹溝１１に挿入し固定する（図６）。Then, the central shaft 68 and the external fitting shaft 73 are rotated in a direction in which the male screw 54 of the rotary shaft 53 is screwed in, and the inclined surface 4 of the stop plate 43 is rotated by the inverted conical portion 56 of the rotary shaft 53.
6 is pressed to insert and fix the tip of the stop plate 43 into the annular groove 11 of the tip neck portion 10 (FIG. 6).
【００６９】そうすると、都市ガスは本管１から分岐短
管７を通って、延長管２５に流れる。そこで、外嵌軸７
３を回動しないように保持し、中心軸６８を連結用雌ね
じ６９の螺脱する向きに回転させて、回転軸５３の連結
用雄ねじ５８から中心軸６８の連結用雌ねじ６９を螺脱
させ、外嵌軸７３と中心軸６８を抜き出し、ストッパ着
脱機６３とゲートバルブ７８を分岐短管７から取り外
す。Then, the city gas flows from the main pipe 1 through the branch short pipe 7 to the extension pipe 25. Therefore, the external fitting shaft 7
3 is held so as not to rotate, the central shaft 68 is rotated in a direction in which the connecting female screw 69 is unscrewed, and the connecting female screw 69 of the central shaft 68 is unscrewed from the connecting male screw 58 of the rotating shaft 53. The outer fitting shaft 73 and the central shaft 68 are extracted, and the stopper attaching / detaching machine 63 and the gate valve 78 are removed from the branch short pipe 7.
【００７０】そして、ストッパ３０の小ねじ４５を締め
付けてストップ板４３を固定し、先端ネック部１０にキ
ャップ１９を溶接して閉塞する。この実施例の流体の活
管分岐取出し方法は、本管１に設けた分岐口３に分岐短
管７を溶接し、この分岐短管７に設けた基部ネック部９
と先端ネック部１０に、ストッパ３０を取付けて、その
部分を閉塞するので、独立したバルブを必要とせずコス
トが安く実施できる。Then, the small screw 45 of the stopper 30 is tightened to fix the stop plate 43, and the cap 19 is welded to the tip neck portion 10 to close it. In the method for extracting a fluid from a live pipe according to this embodiment, a short branch pipe 7 is welded to a branch port 3 provided in a main pipe 1, and a base neck portion 9 provided in the short branch pipe 7.
Since the stopper 30 is attached to the distal end neck portion 10 and the portion is closed, an independent valve is not required and the cost can be reduced.
【００７１】そして、分岐短管７の分岐管側口部１３と
先端ネック部１０を閉塞して、本管１に流体を通す方法
は、さらに、基部ネック部９をストッパ３０で閉塞する
と共に、先端ネック部１０と分岐管側口部１３も閉塞
し、二重に閉塞しているので、本管１にガスを通しても
分岐短管７側からのガス漏れを確実に防止でき、分岐短
管７側を隔壁を設けた強固な構造物で囲う必要がなく、
コストが安く実施できる。そして、狭い場所でも実施で
きる。The method of closing the branch pipe side opening 13 and the tip neck portion 10 of the branch short pipe 7 to pass the fluid through the main pipe 1 further includes closing the base neck portion 9 with the stopper 30. Since the tip neck portion 10 and the branch pipe side opening portion 13 are also closed and doubly closed, gas leakage from the branch short pipe 7 side can be reliably prevented even when gas is passed through the main pipe 1, and the branch short pipe 7 There is no need to enclose the side with a strong structure with a partition,
Can be implemented at low cost. And it can be carried out in a narrow place.
【００７２】[0072]
【発明の効果】本発明は、本管１に設けた分岐口３に分
岐短管７を接続し、この分岐短管７に設けた基部ネック
部９と先端ネック部１０に、ストッパ３０を取付けて、
その部分を閉塞するので、独立したバルブを必要とせ
ず、安いコストで流体の活管分岐取出し方法が実施でき
る。According to the present invention, the branch short pipe 7 is connected to the branch port 3 provided in the main pipe 1, and the stopper 30 is attached to the base neck portion 9 and the tip neck portion 10 provided in the branch short pipe 7. hand,
Since that part is closed, an independent valve is not required, and the method for branching and taking out the live tube of the fluid can be implemented at a low cost.
【００７３】そして、流体の活管分気遮断方法は、さら
に、延長管２５に流体を流した後に、延長管２５への流
れを遮断して、延長管２５の先に別の管等の取付けがで
きる。Further, in the method for shutting off the active tube of the fluid, the fluid is further passed through the extension tube 25, then the flow to the extension tube 25 is shut off, and another tube or the like is attached to the end of the extension tube 25. You can
【００７４】そして狭い場所でも実施でき便利である。It is convenient because it can be carried out even in a narrow space.
【図１】本発明の一実施例の実施状態を示す図FIG. 1 is a diagram showing an implementation state of an embodiment of the present invention.
【図２】本発明の一実施例のストッパの取付け状態を示
す図FIG. 2 is a diagram showing a mounting state of a stopper according to an embodiment of the present invention.
【図３】本発明の一実施例のストッパを取付けた状態を
示す図FIG. 3 is a view showing a state in which a stopper according to an embodiment of the present invention is attached.
【図４】本発明の一実施例の実施状態を示す図FIG. 4 is a diagram showing an implementation state of an embodiment of the present invention.
【図５】本発明の一実施例の延長管の接続状態を示す図FIG. 5 is a diagram showing a connection state of extension pipes according to an embodiment of the present invention.
【図６】本発明の一実施例の延長管の接続状態を示す図FIG. 6 is a diagram showing a connected state of the extension pipe according to the embodiment of the present invention.
【図７】本発明の一実施例の延長管の接続状態を示す図FIG. 7 is a diagram showing a connection state of extension tubes according to an embodiment of the present invention.
【図８】本発明の一実施例で使用する分岐短管の断面図FIG. 8 is a sectional view of a branched short pipe used in one embodiment of the present invention.
【図９】本発明の一実施例で使用するストッパの断面図FIG. 9 is a sectional view of a stopper used in one embodiment of the present invention.
【図１０】本発明の一実施例で使用するシール本体の斜
視図FIG. 10 is a perspective view of a seal body used in an embodiment of the present invention.
【図１１】本発明の一実施例で使用するストップ板の表
面の斜視図FIG. 11 is a perspective view of the surface of a stop plate used in one embodiment of the present invention.
【図１２】本発明の一実施例で使用するストップ板の裏
面の斜視図FIG. 12 is a perspective view of the back surface of a stop plate used in one embodiment of the present invention.
【図１３】本発明の一実施例で使用するストッパとスト
ッパ着脱機の断面図FIG. 13 is a sectional view of a stopper and a stopper attaching / detaching machine used in an embodiment of the present invention.
【図１４】本発明の他の実施例で使用する分岐短管の断
面図FIG. 14 is a sectional view of a branched short pipe used in another embodiment of the present invention.
【図１５】本発明の他の実施例で使用するストッパの断
面図FIG. 15 is a sectional view of a stopper used in another embodiment of the present invention.
【図１６】従来例の説明用の図FIG. 16 is a diagram for explaining a conventional example.
１ 本管 ３ 分岐口 ７ 分岐短管 ９ 基部ネック部 １０ 先端ネック部 １３ 分岐管側口部 ２５ 延長管 ３０ ストッパ ６３ストッパ着脱機 1 Main pipe 3 Branch port 7 Branch short pipe 9 Base neck part 10 Tip neck part 13 Branch pipe side mouth part 25 Extension pipe 30 Stopper 63 Stopper detaching machine
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤巻 輝明 神奈川県横浜市金沢区並木３丁目９−３− 404 (72)発明者 比留間 悟 千葉県柏市亀甲台１−18−12 (72)発明者 高椋 陽男 東京都千代田区九段南３−３−17豊田イン ターナショナルセールス株式会社内 (72)発明者 石川 昌巳 東京都千代田区丸の内１丁目１番２号日本 鋼管株式会社内 (72)発明者 根本 実 神奈川県大和市南林間７−８−15 (72)発明者 畝本 康生 神奈川県厚木市岡田２−13−18 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Teruaki Fujimaki 3-9-3-404 Namiki, Kanazawa-ku, Yokohama, Kanagawa Prefecture (72) Inventor Satoru Hiruma 1-18-12, Kamikodai, Kashiwa-shi, Chiba (72) Invention Yoshio Takagura 3-3-17 Kudan Minami, Chiyoda-ku, Tokyo Toyota International Sales Co., Ltd. (72) Inventor Masami Ishikawa 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. Minoru Nemoto 7-8-15 Minamirinma, Yamato City, Kanagawa Prefecture (72) Inventor, Yasuo Unemoto 2-13-18 Okada, Atsugi City, Kanagawa Prefecture
Claims (2)
設け、この分岐口３に、分岐短管７の一方の本管側口部
に設けた基部ネック部９を接続し、前記分岐短管７の他
方の本管側口部には先端ネック部１０を設け、前記基部
ネック部９と先端ネック部１０には、取付けた箇所を閉
塞できるストッパ３０を取付けられるように形成して、
前記基部ネック部９にストッパ３０を取付けて閉塞し、
本管１に流体を通した後、 分岐短管７の分岐管側口部１３に延長管２５を接続し、
次にストッパ着脱機６３で、ストッパ３０を基部ネック
部９より取外して、先端ネック部１０に取付け、先端ネ
ック部１０を閉塞して、本管１の流体を延長管２５に流
す流体の活管分岐取出し方法。1. A branch port 3 is provided at a planned branch point of the main pipe 1, and a base neck portion 9 provided at one main pipe side opening of a branch short pipe 7 is connected to the branch port 3, A tip neck portion 10 is provided at the other main pipe side opening portion of the branch short pipe 7, and a stopper 30 that can close the attached portion can be attached to the base neck portion 9 and the tip neck portion 10. ,
A stopper 30 is attached to the base neck portion 9 to close it,
After passing the fluid through the main pipe 1, connect the extension pipe 25 to the branch pipe side opening 13 of the branch short pipe 7,
Next, the stopper attaching / detaching machine 63 removes the stopper 30 from the base neck portion 9, attaches it to the tip neck portion 10, closes the tip neck portion 10, and causes the fluid of the main pipe 1 to flow into the extension pipe 25. Branch extraction method.
設け、この分岐口３に、分岐短管７の一方の本管側口部
に設けた基部ネック部９を接続し、前記分岐短管７の他
方の本管側口部には先端ネック部１０を設け、前記基部
ネック部９と先端ネック部１０には、取付けた箇所を閉
塞できるストッパ３０を取付けられるように形成して、
前記基部ネック部９にストッパ３０を取付けて閉塞し、
本管１に流体を通した後、 分岐短管７の分岐管側口部１３に延長管２５を接続し、
次にストッパ着脱機６３で、ストッパ３０を基部ネック
部９より取外して、先端ネック部１０に取付け、先端ネ
ック部１０を閉塞して、本管１の流体を延長管２５に流
した後、ストッパ着脱機６３を用いてストッパ３０を先
端ネック部１０より取外して、基部ネック部９に移動し
て取付け、延長管２５への流れを止める流体の活管分岐
遮断方法。2. A branch port 3 is provided at a planned branch point of the main pipe 1, and a base neck portion 9 provided at one main pipe side opening of the branch short pipe 7 is connected to the branch port 3, A tip neck portion 10 is provided at the other main pipe side opening portion of the branch short pipe 7, and a stopper 30 that can close the attached portion can be attached to the base neck portion 9 and the tip neck portion 10. ,
A stopper 30 is attached to the base neck portion 9 to close it,
After passing the fluid through the main pipe 1, connect the extension pipe 25 to the branch pipe side opening 13 of the branch short pipe 7,
Next, the stopper attaching / detaching machine 63 removes the stopper 30 from the base neck portion 9, attaches it to the tip neck portion 10, closes the tip neck portion 10 and causes the fluid of the main pipe 1 to flow into the extension pipe 25, and then the stopper. A method for disconnecting a live tube branch of a fluid, in which the stopper 30 is detached from the tip neck portion 10 by using the attaching / detaching machine 63, moved to the base neck portion 9 and attached, and the flow to the extension pipe 25 is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14511894A JP3264584B2 (en) | 1994-06-27 | 1994-06-27 | Method of extracting and shutting off fluid from active pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14511894A JP3264584B2 (en) | 1994-06-27 | 1994-06-27 | Method of extracting and shutting off fluid from active pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0814440A true JPH0814440A (en) | 1996-01-16 |
| JP3264584B2 JP3264584B2 (en) | 2002-03-11 |
Family
ID=15377816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14511894A Expired - Fee Related JP3264584B2 (en) | 1994-06-27 | 1994-06-27 | Method of extracting and shutting off fluid from active pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3264584B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100473859B1 (en) * | 2001-08-24 | 2005-03-08 | 이우각 | Plug for pipe's fitting |
| JP2010019328A (en) * | 2008-07-10 | 2010-01-28 | Cosmo Koki Co Ltd | Opening and closing valve removing means |
| JP2010025164A (en) * | 2008-07-16 | 2010-02-04 | Cosmo Koki Co Ltd | On-off valve removing means and method for the same |
| JP2011144843A (en) * | 2010-01-13 | 2011-07-28 | Jfe Pipe Fitting Mfg Co Ltd | Branching out method from primary pipe |
| JP2012233590A (en) * | 2012-08-02 | 2012-11-29 | Waterworks Technology Development Organization Co Ltd | Method of removing branch pipe and stopper device for branch opening |
| CN107838568A (en) * | 2017-12-19 | 2018-03-27 | 江苏北人机器人系统股份有限公司 | Anti-splashing device |
-
1994
- 1994-06-27 JP JP14511894A patent/JP3264584B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100473859B1 (en) * | 2001-08-24 | 2005-03-08 | 이우각 | Plug for pipe's fitting |
| JP2010019328A (en) * | 2008-07-10 | 2010-01-28 | Cosmo Koki Co Ltd | Opening and closing valve removing means |
| JP2010025164A (en) * | 2008-07-16 | 2010-02-04 | Cosmo Koki Co Ltd | On-off valve removing means and method for the same |
| JP2011144843A (en) * | 2010-01-13 | 2011-07-28 | Jfe Pipe Fitting Mfg Co Ltd | Branching out method from primary pipe |
| JP2012233590A (en) * | 2012-08-02 | 2012-11-29 | Waterworks Technology Development Organization Co Ltd | Method of removing branch pipe and stopper device for branch opening |
| CN107838568A (en) * | 2017-12-19 | 2018-03-27 | 江苏北人机器人系统股份有限公司 | Anti-splashing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3264584B2 (en) | 2002-03-11 |
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