JP5183234B2 - Water control body installation device - Google Patents

Water control body installation device Download PDF

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JP5183234B2
JP5183234B2 JP2008028136A JP2008028136A JP5183234B2 JP 5183234 B2 JP5183234 B2 JP 5183234B2 JP 2008028136 A JP2008028136 A JP 2008028136A JP 2008028136 A JP2008028136 A JP 2008028136A JP 5183234 B2 JP5183234 B2 JP 5183234B2
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water control
control body
flange
pipe
sealing flange
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JP2009185952A (en
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直樹 金田
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Cosmo Koki Co Ltd
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Description

本発明は、水密に密封した筐体内において、既設流体管の所定箇所を管切除手段により不断水状態で切除し、既設流体管の切断面側に配置されるフランジを備えた制水体を所定箇所に設置して、制水体と既設流体管との間を、継手リングにより水密に接続する制水体設置装置に関する。   According to the present invention, a water control unit having a flange disposed on a cut surface side of an existing fluid pipe is cut off at a predetermined position in a water-tightly sealed case by cutting a predetermined position of the existing fluid pipe in an indefinite water state by a pipe cutting means. It is related with the water control body installation apparatus which installs in a watertight connection between a water control body and an existing fluid pipe | tube with a coupling ring.

従来の制水体設置装置では、制水体における流体の管路を形成する管路部に、管路部の外周に沿って管軸方向に移動可能なスリーブ部を備え、制水体の設置後においてスリーブ部が管軸方向に移動して、継手リングと水密に接続している（例えば、特許文献１参照）。   In a conventional water control body installation device, a pipe portion that forms a fluid conduit in the water control body is provided with a sleeve portion that is movable in the direction of the pipe axis along the outer periphery of the pipe portion, and the sleeve after the water control body is installed The part moves in the tube axis direction and is connected to the joint ring in a watertight manner (see, for example, Patent Document 1).

特開２００７−４６６８０号公報（第６頁、第５図）Japanese Unexamined Patent Publication No. 2007-46680 (page 6, FIG. 5)

しかしながら、特許文献１にあっては、制水体の管路部が、管軸方向に外径が変化しない筒型形状であるため、この管路部の外周に沿ってスリーブ部が管軸方向に移動可能に機能するが、制水体のタイプとしては、従来、管路部の端部に径方向に膨出したフランジを備えたフランジ付タイプの制水体も存在しており、このタイプの制水体では、スリーブ部がその移動をフランジで遮られて機能しないため、このタイプの制水体を既設流体管との水密な接続に用いることが困難であった。   However, in Patent Document 1, since the pipe portion of the water control body has a cylindrical shape whose outer diameter does not change in the tube axis direction, the sleeve portion extends in the tube axis direction along the outer periphery of the pipe portion. Although it functions so that it can move, conventionally, there is also a flanged type water control body with a flange bulging in the radial direction at the end of the pipe section, and this type of water control body Then, since the sleeve portion does not function because its movement is blocked by the flange, it is difficult to use this type of water control body for watertight connection with the existing fluid pipe.

本発明は、このような問題点に着目してなされたもので、フランジを備えた制水体と既設流体管とを水密に接続出来る制水体設置装置を提供することを目的とする。   The present invention has been made paying attention to such problems, and an object of the present invention is to provide a water control body installation device capable of watertightly connecting a water control body having a flange and an existing fluid pipe.

上記課題を解決するために、本発明の請求項１に記載の制水体設置装置は、
水密に密封した筐体内において、既設流体管の所定箇所を管切除手段により不断水状態で切除し、前記既設流体管の切断面側に配置されるフランジを備えた制水体を前記所定箇所に設置して、前記制水体と前記既設流体管との間を、継手リングにより水密に接続する制水体設置装置であって、
前記制水体のフランジの側端面との間に介在する第１のシール部材と、前記継手リングとの間に介在する第２のシール部材とを備えた密封フランジが、前記制水体のフランジに接続され、
前記密封フランジは、前記第２のシール部材が、前記継手リングの管軸方向に延びる案内部に対向する周端面と、前記継手リングの側端部に対向する側端面とに、それぞれ設けられていることを特徴としている。
この特徴によれば、筐体内において、管切除手段により切除した既設流体管の所定箇所に設置した制水体と、既設流体管との間に接続される継手リングが、既設流体管の外周に沿って管軸方向に移動し、第１のシール部材により制水体のフランジに水密に接続された密封フランジに対して、第２のシール部材により水密に接続されることで、結果として制水体のフランジに水密に接続した密封フランジを介在させるだけで、フランジを備えた制水体と既設流体管とを水密的に接続出来ることに成る。
また、密封フランジの周端面と側端面とに設けられた第２のシール部材が、それぞれ継手リングの案内部、及び側端部との間に介在してシール部材を２重にシールすることになり、密封フランジと継手リングとの水密性を高めることができる。 In order to solve the above-described problem, a water control body installation device according to claim 1 of the present invention provides:
Within a watertight sealed housing, a predetermined portion of the existing fluid pipe is excised in an undisturbed state by a tube excision means, and a water control body having a flange disposed on the cut surface side of the existing fluid pipe is installed at the predetermined location A water control body installation device for connecting the water control body and the existing fluid pipe in a watertight manner by a joint ring,
A sealing flange including a first seal member interposed between the side end surfaces of the flange of the water control body and a second seal member interposed between the joint rings is connected to the flange of the water control body. It is,
In the sealing flange, the second seal member is provided on each of a peripheral end surface facing a guide portion extending in a pipe axis direction of the joint ring and a side end surface facing a side end portion of the joint ring. It is characterized by being.
According to this feature, in the housing, the water control body installed at a predetermined position of the existing fluid pipe cut by the pipe cutting means and the joint ring connected between the existing fluid pipe are provided along the outer periphery of the existing fluid pipe. The seal flange that is moved in the pipe axis direction and is watertightly connected to the flange of the water control body by the first seal member is connected to the flange of the water control body by the second seal member. Therefore, the water control body having the flange and the existing fluid pipe can be connected in a watertight manner simply by interposing a sealing flange connected in a watertight manner.
Further, the second seal members provided on the peripheral end surface and the side end surface of the sealing flange are interposed between the guide portion and the side end portion of the joint ring, respectively, to double seal the seal member. Thus, the watertightness between the sealing flange and the joint ring can be enhanced.

本発明の請求項２に記載の制水体設置装置は、請求項１に記載の制水体設置装置であって、
前記密封フランジの前記第１のシール部材と前記第２のシール部材が周方向に亘って設けられていることを特徴としている。
この特徴によれば、密封フランジの周端面と両側端面とに設けられた前記第１のシール部材と前記第２のシール部材が周方向に亘って設けられているので、密封フランジと継手リングとの水密性を高めることができる。 The water control body installation device according to claim 2 of the present invention is the water control body installation device according to claim 1,
The first sealing member and the second sealing member of the sealing flange are provided in a circumferential direction.
According to this feature, since the said first sealing member provided on the peripheral surface of the sealing flange and the two side end faces the second seal member is provided over the circumferential direction, the sealing flange and the joint ring And can improve water tightness.

本発明の請求項３に記載の制水体設置装置は、請求項１または２に記載の制水体設置装置であって、
前記密封フランジは、前記制水体のフランジに管軸方向に形成されたボルト孔に略同軸に穿設された雌ネジ凹部を有していることを特徴としている。
この特徴によれば、制水体のフランジのボルト孔と密封フランジの雌ネジ凹部とに、略同軸にボルトを螺挿するだけで、制水体のフランジの既存のボルト孔を利用して密封フランジを容易に取り付けることができる。また、雌ネジ凹部が密封フランジを継手リング側まで貫通していないため、密封フランジの継手リングとの接続について、雌ネジ凹部に螺挿するボルトが邪魔になる虞や、流体が密封リングの両端面を通じて漏出してしまう虞を回避できる。 The water control body installation device according to claim 3 of the present invention is the water control body installation device according to claim 1 or 2,
The sealing flange has a female screw recess formed substantially coaxially in a bolt hole formed in the pipe axis direction in the flange of the water control body.
According to this feature, the sealing flange can be installed using the existing bolt hole of the water control body flange by simply screwing the bolt into the bolt hole of the water control body flange and the female thread recess of the sealing flange. Easy to install. In addition, since the female thread recess does not penetrate the sealing flange to the joint ring side, the bolts screwed into the female thread recess may interfere with the connection of the sealing flange to the joint ring, or the fluid may be at both ends of the sealing ring. The risk of leaking through the surface can be avoided.

本発明の請求項４に記載の制水体設置装置は、請求項１ないし３のいずれかに記載の制水体設置装置であって、
前記密封フランジは、前記制水体のフランジに管軸方向に形成されたボルト孔と前記継手リングに管軸方向に形成されたボルト孔とに略同軸に貫通したボルト孔を有していることを特徴としている。
この特徴によれば、制水体のフランジのボルト孔と密封フランジのボルト孔、及び継手リングのボルト孔に、略同軸にボルトを一体的に螺挿するだけで、制水体のフランジ及び継手リングに密封フランジを取り付けるための加工を別途施すことがなく、制水体のフランジ及び継手リングにボルト孔が既に設けられている場合に、それらボルト孔を利用して、密封フランジを介して制水体と継手リングとを接続することができる。 The water control body installation device according to claim 4 of the present invention is the water control body installation device according to any one of claims 1 to 3,
The sealing flange has a bolt hole penetrating substantially coaxially with a bolt hole formed in the pipe axis direction in the flange of the water control body and a bolt hole formed in the pipe ring direction in the joint ring. It is a feature.
According to this feature, the bolts on the flange of the water control body, the bolt holes of the sealing flange, and the bolt holes of the joint ring are simply screwed into the bolt holes of the water control body in a coaxial manner. When bolt holes are already provided in the flange and joint ring of the water control body without any additional processing for attaching the sealing flange, the bolts are used to connect the water control body and the joint through the sealing flange. Ring can be connected.

本発明の請求項５に記載の制水体設置装置は、請求項４に記載の制水体設置装置であって、
前記制水体のフランジ、前記密封フランジ、そして前記継手リングに略同軸に配置されたボルト孔に、水密性を有するボルト部材が取付けられていることを特徴としている。
この特徴によれば、制水体のフランジ、密封フランジ、そして継手リングに略同軸に配置されたボルト孔に螺挿された水密性を有するボルト部材により三者を一体化するとともに、管内の流体がこれらボルト孔を通じて外部に漏出してしまう虞を回避できる。 The water control body installation device according to claim 5 of the present invention is the water control body installation device according to claim 4,
A bolt member having watertightness is attached to a bolt hole disposed substantially coaxially with the flange of the water control body, the sealing flange, and the joint ring.
According to this feature, the three members are integrated by the watertight bolt member screwed into the bolt hole disposed substantially coaxially with the flange of the water control body, the sealing flange, and the joint ring, and the fluid in the pipe is The possibility of leaking outside through these bolt holes can be avoided.

本発明の実施例を以下に説明する。   Examples of the present invention will be described below.

本発明の実施例を図面に基づいて説明すると、先ず図１は、本発明の実施例における不断水状態で制水体を設置する際に使用される筐体及び継手リングが既設流体管に備えられた状態を示す平面図である。図２は、制水体を示す正面図である。図３（ａ）は、密封フランジを示す側面図であり、（ｂ）は、密封フランジを示す図３（ａ）のＡ−Ａ断面図である。図４（ａ）は、制水体の挿入終了状態を示す一部断面図であり、（ｂ）は、挿入終了状態の制水体を継手リングにより固定された状態を示す一部断面図である。図５は、図４（ｂ）の拡大断面図である。図６（ａ）は、既設流体管を切断する管切除手段を示した概略図であり、（ｂ）は、管切除手段と既設流体管との連結状態を示す概略図である。以下、図４の紙面手前側を流体管の正面側とし、図４の紙面左右側を既設流体管の左右側とし、図４の紙面上下側を既設流体管の上下側として説明する。   An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 shows that an existing fluid pipe is provided with a casing and a joint ring that are used when installing a water control body in a non-continuous water state in the embodiment of the present invention. It is a top view which shows the state. FIG. 2 is a front view showing the water control body. Fig.3 (a) is a side view which shows a sealing flange, (b) is AA sectional drawing of Fig.3 (a) which shows a sealing flange. FIG. 4A is a partial cross-sectional view showing a state where the insertion of the water control body is completed, and FIG. 4B is a partial cross-sectional view showing a state where the water control body in the insertion completion state is fixed by a joint ring. FIG. 5 is an enlarged cross-sectional view of FIG. FIG. 6A is a schematic diagram showing a tube excision means for cutting an existing fluid pipe, and FIG. 6B is a schematic diagram showing a connection state between the pipe excision means and the existing fluid pipe. 4 will be described as the front side of the fluid pipe, the left and right sides of FIG. 4 are the left and right sides of the existing fluid pipe, and the upper and lower sides of FIG. 4 are the upper and lower sides of the existing fluid pipe.

図１に示されるように、本実施例の継手リング３０，３０は、上水管である既設流体管１を後述のように切除する所定箇所Ｋの上流側及び下流側近傍において、既設流体管１の外面に周方向に沿って夫々取付けられる。   As shown in FIG. 1, the coupling rings 30, 30 of the present embodiment include the existing fluid pipe 1 in the vicinity of the upstream side and the downstream side of a predetermined location K where the existing fluid pipe 1 that is a water pipe is cut as described later. Are attached to the outer surface of each of the outer peripheral surfaces along the circumferential direction.

また、この所定箇所Ｋ及び継手リング３０，３０を含めた既設流体管１の一部が、筐体７により水密に密封されている。この筐体７内において、平面視略円形状の穿孔刃６２ａを有する管切除手段６０（図６（ａ）参照）により、所定箇所Ｋにおける既設流体管１を切断するとともに、この切断により既設流体管１から分断された管片１’を、筐体７内から取り除く。図で一点鎖線部は、穿孔刃６２ａの軌跡を示している。   In addition, a part of the existing fluid pipe 1 including the predetermined portion K and the joint rings 30 and 30 is sealed in a watertight manner by the housing 7. In this casing 7, the existing fluid pipe 1 at a predetermined location K is cut by a pipe cutting means 60 (see FIG. 6A) having a perforated blade 62a having a substantially circular shape in plan view. The tube piece 1 ′ separated from the tube 1 is removed from the housing 7. In the figure, the alternate long and short dash line indicates the locus of the drilling blade 62a.

図６（ａ）、（ｂ）に示されるように、管切除手段６０は、上方開口部７ｄの内径と略同径の内径を有する胴体６１と、胴体６１の内部空間に収納される穿孔用カッタ６２と、穿孔用カッタ６２を既設流体管１の所定箇所Ｋに向けて移動可能であって穿孔用カッタ６２を軸回りに回転可能な穿孔機６３と、から構成されている。   As shown in FIGS. 6A and 6B, the tube excision means 60 includes a body 61 having an inner diameter substantially the same as the inner diameter of the upper opening 7d, and a drilling hole accommodated in the inner space of the body 61. The cutter 62 and the punching cutter 62 which can move the punching cutter 62 toward the predetermined location K of the existing fluid pipe 1 and can rotate the punching cutter 62 around its axis are configured.

更に、穿孔用カッタ６２は、既設流体管１の外径よりも大なる内径及び高さを有し、下端周縁に下向きに配設された穿孔刃６２ａと、穿孔刃６２ａと同じ中心軸を有し穿孔刃６２ａよりも下方の位置に下向きに配設されたセンタードリル６２ｂと、穿孔刀６２ａの先方に設けられた掛止片６２ｃと、を有する内空円筒状に形成されている。   Further, the perforating cutter 62 has an inner diameter and a height that are larger than the outer diameter of the existing fluid pipe 1, and has a perforating blade 62a disposed downward on the periphery of the lower end and the same central axis as the perforating blade 62a. It is formed in an inner cylindrical shape having a center drill 62b disposed downward at a position lower than the punching blade 62a and a hooking piece 62c provided at the tip of the punching blade 62a.

次に、既設流体管１の切断工程について説明すると、開閉弁６４を閉状態とし、円筒状の穿孔用カッタ６２の中心軸がほぼ鉛直方向を向き、かつ筐体７内の既設流体管１の中心軸とほぼ直交方向に交差する位置に配設するように、胴体６１を開閉弁６４の上方に水密的に連通接続する。   Next, the cutting process of the existing fluid pipe 1 will be described. The on-off valve 64 is closed, the central axis of the cylindrical piercing cutter 62 is substantially in the vertical direction, and the existing fluid pipe 1 in the housing 7 is closed. The body 61 is connected in a watertight manner above the on-off valve 64 so as to be disposed at a position substantially perpendicular to the central axis.

次に、開閉弁６４を開状態とし、穿孔用カッタ６２を回転動作させながら、穿孔刃６２ａが、既設流体管１の全断面を通過するように進退移動させる穿孔機６３により、穿孔用カッタ６２を下降動作させる。穿孔用カッタ６２の回転動作及び下降動作により、既設流体管１は穿孔用カッタ６２の下端周縁の直径寸法分離間した２箇所の切断面２６ａ，２６ｂで、既設流体管１上面の外周面から下方に徐々に切断され、穿孔刃６２ａが既設流体管１の全断面を通過するように下降動作した地点で、２箇所の切断面２６ａ，２６ｂで既設流体管１が切断され、２箇所の切断面２６ａ，２６ｂの間で管片１’が、既設流体管１の管路から分断される。   Next, the opening / closing valve 64 is opened and the punching cutter 62 is moved by the punching machine 63 in which the punching blade 62a moves forward and backward so as to pass through the entire cross section of the existing fluid pipe 1 while rotating the punching cutter 62. Move down. By rotating and lowering the drilling cutter 62, the existing fluid pipe 1 is lowered from the outer peripheral surface of the upper surface of the existing fluid pipe 1 by two cut surfaces 26 a and 26 b between the diameters of the lower end periphery of the drilling cutter 62. The existing fluid pipe 1 is cut at the two cut surfaces 26a and 26b at the point where the perforated blade 62a is lowered so as to pass through the entire cross section of the existing fluid pipe 1, and the two cut surfaces are cut. The pipe piece 1 ′ is separated from the pipe line of the existing fluid pipe 1 between 26 a and 26 b.

上述の既設流体管１の切断動作において、既設流体管１は不断水状態であるため、本実施例の既設流体管１内は水圧が加わった満水状態であり、穿孔用カッタ６２による切断動作において、センタードリル６２ｂが既設流体管１上面の外周面から既設流体管１の内部に達した時点で、既設流体管１の内部の流体が管外に漏出し、筐体７の内空間及び上方に連通接続した胴体６１内部を満たすようになる。ただし、既設流体管１の内部から漏出した流体が、筐体７の外部に漏出することはない。したがって、既設流体管１内の流体を不断水状態のまま、切断動作が可能となる。   In the cutting operation of the existing fluid pipe 1 described above, since the existing fluid pipe 1 is in an undisrupted water state, the existing fluid pipe 1 of the present embodiment is in a full water state with water pressure applied, and in the cutting operation by the perforating cutter 62. When the center drill 62b reaches the inside of the existing fluid pipe 1 from the outer peripheral surface of the upper surface of the existing fluid pipe 1, the fluid inside the existing fluid pipe 1 leaks outside the pipe, The inside of the fuselage 61 connected in communication is filled. However, the fluid leaking from the inside of the existing fluid pipe 1 does not leak to the outside of the housing 7. Accordingly, the cutting operation can be performed while the fluid in the existing fluid pipe 1 remains in an undisrupted state.

また、既設流体管１の切断の際に発生する切り粉は、筐体７の所定箇所Ｋ近傍の下部に開閉自在に設けられた排出口７ｃにより、既設流体管１内の流体と共に排出できるようになっている。   Further, the chips generated when the existing fluid pipe 1 is cut can be discharged together with the fluid in the existing fluid pipe 1 through the discharge port 7c provided in the lower portion in the vicinity of the predetermined location K of the housing 7 so as to be opened and closed. It has become.

次に、既設流体管１の切断動作後に、胴体６１の内部に配設した穿孔用カッタ６２と、センタードリル６２ｂの掛止片６２ｃに掛止した切断後の管片１’と、を同時に筐体７の外部に搬出する。   Next, after the cutting operation of the existing fluid pipe 1, the piercing cutter 62 disposed inside the body 61 and the cut pipe piece 1 'hooked on the hook piece 62c of the center drill 62b are simultaneously encased. Carry it out of the body 7.

また、筐体７内からの搬出工程は、搬出物（管片１’と既設管切除手段）を胴体６１内部へ引き上げた後に、開閉弁６４を閉じることにより、既設流体管１内の流体は筐体７外部に漏れず、不断水状態での搬出作業が可能となる。   In addition, the step of carrying out from the inside of the housing 7 is such that the fluid in the existing fluid pipe 1 is closed by closing the on-off valve 64 after pulling out the discharged goods (tube piece 1 ′ and existing pipe cutting means) into the body 61. It is possible to carry out the work in an indefinite water state without leaking outside the housing 7.

尚、本発明における管切除手段６０は、必ずしも上述の構成に限られるものではなく、筐体７内における既設流体管１の所定箇所Ｋを水密的に切除するものであれば、例えば既設流体管１の周方向に切削刃が回転することにより、既設流体管１を切断するものであってもよい。   Note that the tube excision means 60 in the present invention is not necessarily limited to the above-described configuration. For example, an existing fluid tube may be used as long as the predetermined portion K of the existing fluid tube 1 in the casing 7 is excised in a watertight manner. The existing fluid pipe 1 may be cut by rotating the cutting blade in the circumferential direction 1.

次に、制水体２と既設流体管１との接続について説明する。   Next, the connection between the water control body 2 and the existing fluid pipe 1 will be described.

上記した平面視略円形状の穿孔刃６２ａにより切断された図１で示す既設流体管１の切断面２６ａ，２６ｂは、平面視管軸側が窪んだ凹形状で、側面視管軸側が膨出した凸形状を成す様に、互いに対向する一対に形成されており、これら切断面２６ａ，２６ｂの対向面間に、制水体２が設置される。   The cut surfaces 26a and 26b of the existing fluid pipe 1 shown in FIG. 1 cut by the above-described substantially circular perforated blade 62a in plan view have a concave shape in which the plan view tube axis side is recessed, and the side view tube axis side bulges. It forms in a pair so that it may form convex shape, and the water control body 2 is installed between the opposing surfaces of these cut surfaces 26a and 26b.

この制水体２について説明すると、図２に示されるように、制水体２は、弁体の上下動で管路を仕切る仕切弁であって、汎用のフランジ付タイプの制水体本体に、後述する密封フランジ３１をボルト２９で接続して構成されており、更に制水体本体は、既設流体管１と略同径であって筒状に両端が連通した管路部３９ｂと、この管路部３９ｂの両端で径方向に膨出した環状のフランジＦａ、及び管路部３９ｂ内を開閉する弁体（図示略）に連結して回動可能な弁軸３５と、から主として成る。   The water control body 2 will be described below. As shown in FIG. 2, the water control body 2 is a gate valve that partitions the pipe by the vertical movement of the valve body, and is described later in a general-purpose flanged water control body body. A sealing flange 31 is connected by a bolt 29, and the body of the water control body is substantially the same diameter as the existing fluid pipe 1 and has a pipe line part 39b having both ends communicating in a cylindrical shape, and this pipe line part 39b. And an annular flange Fa bulging in the radial direction at both ends, and a valve shaft 35 that is rotatable by being connected to a valve body (not shown) that opens and closes the inside of the pipe line portion 39b.

密封フランジ３１は、図３に示されるように、フランジＦａと略同径の外径、及び内径を備えた環状に形成されている。また、フランジＦａに接続される側の側端面３１ａに環状に形成された凹溝３１ｃに第１のシール部材４５が設けられ、同様に、継手リング３０に接続される側の側端面３１ｂ、及び周端面３１ｄに、それぞれ環状に形成された凹溝３１ｅ、３１ｆに第２のシール部材４６、４９が設けられている。   As shown in FIG. 3, the sealing flange 31 is formed in an annular shape having an outer diameter and an inner diameter that are substantially the same as the flange Fa. Further, a first seal member 45 is provided in a concave groove 31c formed in an annular shape on the side end surface 31a on the side connected to the flange Fa, and similarly, the side end surface 31b on the side connected to the joint ring 30; Second seal members 46 and 49 are provided in the annular grooves 31e and 31f, respectively, on the circumferential end surface 31d.

また、密封フランジ３１は、その側端面３１ａにおいて周方向に所定間隔に、内側面に雌ネジが螺設された雌ネジ凹部４２を有しているとともに、両側端面３１ａ、３１ｂを貫通するボルト孔４１を有している。   Further, the sealing flange 31 has a female screw recess 42 in which a female screw is screwed on the inner surface at predetermined intervals in the circumferential direction on the side end surface 31a, and a bolt hole penetrating the side end surfaces 31a and 31b. 41.

この密封フランジ３１は、図５に示されるように、制水体本体の両端のフランジＦａ，Ｆａそれぞれに、制水体２の弁軸３５側から管軸方向に挿入されたボルト２９が雌ネジ凹部４２に螺挿されることにより、第１のシール部材４５を介して水密に接続されている。このように、フランジＦａのボルト孔４４と密封フランジ３１の雌ネジ凹部４２とに、略同軸にボルト２９を螺挿するだけで、フランジＦａの既存のボルト孔４４を利用して密封フランジ３１を容易に取り付けることができる。   As shown in FIG. 5, the sealing flange 31 includes bolts 29 inserted in the pipe axis direction from the valve shaft 35 side of the water control body 2 to the flanges Fa, Fa at both ends of the water control body main body 42. By being screwed in, the first seal member 45 is connected in a watertight manner. Thus, the sealing flange 31 can be formed using the existing bolt hole 44 of the flange Fa simply by screwing the bolt 29 into the bolt hole 44 of the flange Fa and the female screw recess 42 of the sealing flange 31. Easy to install.

上述した構成の制水体２は、筐体７の上方開口部７ｄを通じて図示しない吊下手段により吊下され、図４（ａ）に示されるように、管路部３９ｂの軸を流体管１の管軸に合わせた向き、及び高さ位置において、受け台７ｂに載置され支持されるように成っている。尚、この状態で、密封フランジ３１の側端面３１ｂ側と既設流体管１の切断面２６ａ，２６ｂとは、所定の間隔離間している。   The water control body 2 having the above-described configuration is suspended by a suspension means (not shown) through the upper opening 7d of the casing 7, and the shaft of the conduit 39b is connected to the fluid pipe 1 as shown in FIG. It is configured to be placed on and supported by the cradle 7b in a direction and a height position according to the tube axis. In this state, the side end surface 31b side of the sealing flange 31 and the cut surfaces 26a and 26b of the existing fluid pipe 1 are separated by a predetermined distance.

次に、継手リング３０を後述のように既設流体管１の管軸に沿って移動させ、制水体２に接続する（図４（ｂ）参照）。継手リング３０は、既設流体管１の外径よりも僅かに大径の内径を有する略筒形状の汎用のリングであって、内周面に形成された凹部に周方向に亘ってシール部材４８が設けられている。また、制水体２側の端部は、径方向に膨出して密封フランジ３１の側端面３１ｂに対向する側端部３０ａと、この側端部３０ａに連続して管軸方向に延び密封フランジ３１の周端面３１ｄに対向する案内部３０ｃとを有している。更に側端部３０ａには、管軸方向にボルト孔４７が形成されている。   Next, the joint ring 30 is moved along the tube axis of the existing fluid pipe 1 as described later, and connected to the water control body 2 (see FIG. 4B). The joint ring 30 is a general cylindrical ring having an inner diameter slightly larger than the outer diameter of the existing fluid pipe 1, and a seal member 48 extending in the circumferential direction in a recess formed on the inner peripheral surface. Is provided. Further, the end portion on the water control body 2 side bulges in the radial direction and faces the side end surface 31b of the sealing flange 31, and extends in the tube axis direction continuously to the side end portion 30a, and the sealing flange 31. And a guide portion 30c facing the peripheral end surface 31d. Furthermore, a bolt hole 47 is formed in the side end portion 30a in the tube axis direction.

また、筐体７の側方開口部７ａ寄りにおける継手リング３０の外面には、径方向に向かって凸部に形成される凸型部３０ｂが、周方向に沿って設けられており、筐体７の側面に管軸方向に軸支される送りねじ５１に螺合され、管軸方向に移動可能に形成される凹型片５２に嵌合されている。従って、筐体７の側方外部に突出した送りねじ５１の端部５１ａを正逆回動することにより、凹型片５２の移動と共に、継手リング３０が管軸方向に移動可能となる。   Further, on the outer surface of the joint ring 30 near the side opening 7a of the housing 7, a convex portion 30b formed as a convex portion in the radial direction is provided along the circumferential direction. 7 is screwed into a feed screw 51 pivotally supported in the tube axis direction, and is fitted into a concave piece 52 formed to be movable in the tube axis direction. Accordingly, by rotating the end 51a of the feed screw 51 protruding to the outside of the casing 7 forward and backward, the joint ring 30 can move in the tube axis direction along with the movement of the concave piece 52.

次に、継手リング３０と制水体２との接続について説明すると、図４（ｂ）に示されるように、筐体７内の所定箇所Ｋに制水体２が設置された状態において、筐体７の側方外部に突出した送りねじ５１の端部５１ａを正転回動することにより、凹型片５２を介して、継手リング３０が、既設流体管１の外面に沿って密封フランジ３１に向かって移動する。   Next, the connection between the joint ring 30 and the water control body 2 will be described. As shown in FIG. 4B, in the state where the water control body 2 is installed at a predetermined location K in the housing 7, the housing 7. The joint ring 30 moves toward the sealing flange 31 along the outer surface of the existing fluid pipe 1 through the concave piece 52 by rotating the end 51a of the feed screw 51 projecting outward from the side of the feed screw 51 in the normal direction. To do.

継手リング３０の案内部３０ｃは、図５に示されるように、その内周面が管軸方向の先端に向かって拡径する形状に成っており、継手リング３０は、管軸方向に移動するとともに、案内部３０ｃの内周側が密封フランジ３１の周端面３１ｄに全周に亘って係合することで、制水体２に対し位置決めされる。   As shown in FIG. 5, the guide portion 30 c of the joint ring 30 has a shape in which the inner peripheral surface expands toward the tip in the tube axis direction, and the joint ring 30 moves in the tube axis direction. At the same time, the inner circumferential side of the guide portion 30 c is engaged with the circumferential end surface 31 d of the sealing flange 31 over the entire circumference, thereby being positioned with respect to the water control body 2.

そして、継手リング３０の案内部３０ｃが、図５に示されるように、密封フランジ３１の周端面３１ｄとの間で第２のシール部材４９を周方向に亘って押圧し、同様に側端部３０ａが、密封フランジ３１の側端面３１ｂとの間で第２のシール部材４６を周方向に亘って当接する。   And the guide part 30c of the joint ring 30 presses the 2nd seal member 49 over the circumferential direction between 31 d of peripheral edges of the sealing flange 31, as FIG. 30 a abuts the second seal member 46 in the circumferential direction between the side end face 31 b of the sealing flange 31.

次に、水密性を有するボルト部材５８を構成するボルト２８を、フランジＦａのボルト孔４３、密封フランジ３１のボルト孔４１、そして継手リング３０のボルト孔４７に、略同軸に一体的に挿通してナット２７にて螺挿して締付ける。このようにするだけで、フランジＦａ及び継手リング３０に密封フランジ３１を取り付けるための加工を別途施すことがない。また、フランジＦａ及び継手リング３０に既存のボルト孔４３、４７が形成されていれば、ボルト孔４３、４７を利用して、密封フランジ３１を介して制水体２と継手リング３０とを容易に接続することができる。   Next, the bolt 28 constituting the bolt member 58 having water tightness is integrally inserted substantially coaxially into the bolt hole 43 of the flange Fa, the bolt hole 41 of the sealing flange 31 and the bolt hole 47 of the joint ring 30. And tighten with the nut 27. Only by doing in this way, the process for attaching the sealing flange 31 to the flange Fa and the joint ring 30 is not separately performed. Further, if the existing bolt holes 43 and 47 are formed in the flange Fa and the joint ring 30, the water control body 2 and the joint ring 30 can be easily connected via the sealing flange 31 using the bolt holes 43 and 47. Can be connected.

このボルト２８頭部におけるナット２７側の面と、ナット２７におけるボルト２８頭部側の面とに、ボルト孔４３、４７よりも大径のＯリング５９，５９がそれぞれ配設されており、ボルト２８、ナット２７の締付けにより押圧されることで、ボルト孔４１、４３、４７からの流体の漏出が防止される。このように、フランジＦａ、密封フランジ３１、そして継手リング３０に略同軸に配置されたボルト孔４１、４３、４７に螺挿された水密性を有するボルト部材５８により、管内の流体がこれらボルト孔４１、４３、４７を通じて外部に漏出してしまう虞を回避できる。   O-rings 59 and 59 having a diameter larger than that of the bolt holes 43 and 47 are respectively disposed on a surface of the bolt 28 head on the nut 27 side and a surface of the nut 27 on the head side of the bolt 28. 28, the fluid is prevented from leaking from the bolt holes 41, 43, 47 by being pressed by tightening the nut 27. As described above, the bolts 58 having the watertightness screwed into the bolt holes 41, 43, and 47 disposed substantially coaxially with the flange Fa, the sealing flange 31, and the joint ring 30 allow fluid in the pipe to be transferred to the bolt holes. The possibility of leaking outside through 41, 43, 47 can be avoided.

また、ボルト２８、ナット２７の締付けで、密封フランジ３１と、継手リング３０とが互いに密接し、これらの間に介在する第２のシール部材４６、４９が押圧されることで、第２のシール部材であるこのシール部材４６及び前記したシール部材４９により、密封フランジ３１と継手リング３０との間からの流体の漏出が２重に防止される。   Further, when the bolt 28 and the nut 27 are tightened, the sealing flange 31 and the joint ring 30 are brought into close contact with each other, and the second seal members 46 and 49 interposed therebetween are pressed, whereby the second seal. The seal member 46 and the above-described seal member 49, which are members, prevent double leakage of fluid from between the seal flange 31 and the joint ring 30.

このように、密封フランジ３１の周端面３１ｄと側端面３１ｂとに設けられたシール部材４６、４９が、それぞれ継手リング３０の案内部３０ｃ、及び側端部３０ａとの間に介在して２重にシールすることになり、密封フランジ３１と継手リング３０との水密性を高めることができる。   As described above, the seal members 46 and 49 provided on the peripheral end surface 31d and the side end surface 31b of the sealing flange 31 are interposed between the guide portion 30c and the side end portion 30a of the joint ring 30, respectively. Thus, the watertightness between the sealing flange 31 and the joint ring 30 can be improved.

更に、前述した雌ネジ凹部４２が密封フランジ３１を継手リング３０側まで貫通していないため、密封フランジ３１の継手リング３０との接続について、雌ネジ凹部４２に螺挿するボルト２９が邪魔になる虞や、流体が密封フランジ３１の両端面を通じて漏出してしまう虞を回避できる。   Furthermore, since the female screw recess 42 does not penetrate the sealing flange 31 to the joint ring 30 side, the bolt 29 screwed into the female screw recess 42 is an obstacle to the connection of the sealing flange 31 to the joint ring 30. It is possible to avoid fears and the risk of fluid leaking through both end faces of the sealing flange 31.

上述したように、筐体７内において、管切除手段６０により切除した既設流体管１の所定箇所Ｋに設置した制水体２と、既設流体管１との間に接続される継手リング３０が、既設流体管１の外周に沿って管軸方向に移動し、第１のシール部材４５によりフランジＦａに水密に接続された密封フランジ３１に対して、第２のシール部材４６、４９により水密に接続されることで、結果としてフランジＦａに水密に接続した密封フランジ３１を介在させるだけで、フランジＦａを備えた制水体２と既設流体管１とを水密的に接続出来ることに成る。   As described above, the joint ring 30 connected between the water control body 2 installed at the predetermined location K of the existing fluid pipe 1 cut by the pipe cutting means 60 and the existing fluid pipe 1 in the housing 7 is as follows. It moves in the direction of the pipe axis along the outer periphery of the existing fluid pipe 1 and is connected in a watertight manner by the second seal members 46 and 49 to the sealing flange 31 that is connected in a watertight manner to the flange Fa by the first seal member 45. As a result, the water control body 2 provided with the flange Fa and the existing fluid pipe 1 can be connected in a watertight manner only by interposing the sealing flange 31 connected in a watertight manner to the flange Fa.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。   Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

例えば、上記実施例では、密封フランジ３１は、継手リング３０の案内部３０ｃに対向する周端面３１ｄと、継手リング３０の側端部３０ａに対向する側端面３１ｂとの両面に、第２のシール部材４６、４９が周方向に亘ってそれぞれ設けられているが、例えば第２のシール部材は、密封フランジの周端面若しくは側端面のいずれかの面のみに設けられていてもよい。   For example, in the above-described embodiment, the sealing flange 31 has the second seal on both the circumferential end surface 31 d facing the guide portion 30 c of the joint ring 30 and the side end surface 31 b facing the side end portion 30 a of the joint ring 30. The members 46 and 49 are respectively provided in the circumferential direction. For example, the second seal member may be provided only on either the peripheral end surface or the side end surface of the sealing flange.

また例えば、上記実施例では、制水体２を、弁体の上下動で管路を開閉する仕切弁として説明しているが、制水体の用途や構成についてはこれに限らず、例えばバタフライ弁や回転弁や分岐弁等の制水弁であってもよいし、あるいは流量計や発電機等の設置体であってもよく、その類型は特定されない。   Further, for example, in the above-described embodiment, the water control body 2 is described as a gate valve that opens and closes a pipe line by the vertical movement of the valve body. However, the use and configuration of the water control body are not limited to this, for example, a butterfly valve, It may be a water control valve such as a rotary valve or a branch valve, or may be an installation body such as a flow meter or a generator, and its type is not specified.

本発明の実施例における不断水状態で制水体を設置する際に使用される筐体及び継手リングが既設流体管に備えられた状態を示す平面図である。It is a top view which shows the state with which the housing | casing and joint ring which are used when installing a water control body in the unrestricted water state in the Example of this invention were equipped with the existing fluid pipe | tube. 制水体を示す正面図である。It is a front view which shows a water control body. （ａ）は、密封フランジを示す側面図であり、（ｂ）は、密封フランジを示す図３（ａ）のＡ−Ａ断面図である(A) is a side view which shows a sealing flange, (b) is AA sectional drawing of Fig.3 (a) which shows a sealing flange. （ａ）は、制水体の挿入終了状態を示す一部断面図であり、（ｂ）は、挿入終了状態の制水体を継手リングにより固定された状態を示す一部断面図である。(A) is a partial cross section figure which shows the insertion completion state of a water control body, (b) is a partial cross section figure which shows the state which fixed the water control body of the insertion completion state by the coupling ring. 図４（ｂ）の拡大断面図である。FIG. 5 is an enlarged cross-sectional view of FIG. （ａ）は、既設流体管を切断する管切除手段を示した概略図であり、（ｂ）は、管切除手段と既設流体管との連結状態を示す概略図である。(A) is the schematic which showed the tube excision means which cut | disconnects an existing fluid pipe | tube, (b) is the schematic which shows the connection state of a pipe excision means and an existing fluid pipe | tube.

符号の説明Explanation of symbols

１ 既設流体管
１’ 管片
２ 制水体
７ 筐体
２６ａ，２６ｂ 切断面
３０ 継手リング
３０ｂ 凸型部
３０ｃ 案内部
３１ 密封フランジ
３１ｂ 側端面
３１ｄ 周端面
４１ ボルト孔
４２ 雌ネジ凹部
４３ ボルト孔
４４ ボルト孔
４５ 第１のシール部材
４６ 第２のシール部材
４７ ボルト孔
４９ 第２のシール部材
５８ ボルト部材
６０ 管切除手段
Ｋ 所定箇所
Ｆａ フランジ DESCRIPTION OF SYMBOLS 1 Existing fluid pipe 1 'Pipe piece 2 Water control body 7 Housing | casing 26a, 26b Cut surface 30 Joint ring 30b Convex part 30c Guide part 31 Sealing flange 31b Side end surface 31d Peripheral end surface 41 Bolt hole 42 Female screw recessed part 43 Bolt hole 44 Bolt Hole 45 First seal member 46 Second seal member 47 Bolt hole 49 Second seal member 58 Bolt member 60 Pipe cutting means K Predetermined portion Fa Flange

Claims (5)

水密に密封した筐体内において、既設流体管の所定箇所を管切除手段により不断水状態で切除し、前記既設流体管の切断面側に配置されるフランジを備えた制水体を前記所定箇所に設置して、前記制水体と前記既設流体管との間を、継手リングにより水密に接続する制水体設置装置であって、
前記制水体のフランジの側端面との間に介在する第１のシール部材と、前記継手リングとの間に介在する第２のシール部材とを備えた密封フランジが、前記制水体のフランジに接続され、
前記密封フランジは、前記第２のシール部材が、前記継手リングの管軸方向に延びる案内部に対向する周端面と、前記継手リングの側端部に対向する側端面とに、それぞれ設けられていることを特徴とする制水体設置装置。 Within a watertight sealed housing, a predetermined portion of the existing fluid pipe is excised in an undisturbed state by a tube excision means, and a water control body having a flange disposed on the cut surface side of the existing fluid pipe is installed at the predetermined location A water control body installation device for connecting the water control body and the existing fluid pipe in a watertight manner by a joint ring,
A sealing flange including a first seal member interposed between the side end surfaces of the flange of the water control body and a second seal member interposed between the joint rings is connected to the flange of the water control body. It is,
In the sealing flange, the second seal member is provided on each of a peripheral end surface facing a guide portion extending in a pipe axis direction of the joint ring and a side end surface facing a side end portion of the joint ring. The water control body installation apparatus characterized by being. 前記密封フランジの前記第１のシール部材と前記第２のシール部材が周方向に亘って設けられていることを特徴とする請求項１に記載の制水体設置装置。 The water control body installation device according to claim 1, wherein the first seal member and the second seal member of the sealing flange are provided in a circumferential direction . 前記密封フランジは、前記制水体のフランジに管軸方向に形成されたボルト孔に略同軸に穿設された雌ネジ凹部を有していることを特徴とする請求項１または２に記載の制水体設置装置。   The said sealing flange has the internal thread recessed part drilled substantially coaxially in the bolt hole formed in the pipe-axis direction at the flange of the said water control body, The control of Claim 1 or 2 characterized by the above-mentioned. Water body installation device. 前記密封フランジは、前記制水体のフランジに管軸方向に形成されたボルト孔と前記継手リングに管軸方向に形成されたボルト孔とに略同軸に貫通したボルト孔を有していることを特徴とする請求項１ないし３のいずれかに記載の制水体設置装置。   The sealing flange has a bolt hole penetrating substantially coaxially with a bolt hole formed in the pipe axis direction in the flange of the water control body and a bolt hole formed in the pipe ring direction in the joint ring. The water control body installation device according to any one of claims 1 to 3. 前記制水体のフランジ、前記密封フランジ、そして前記継手リングに略同軸に配置されたボルト孔に、水密性を有するボルト部材が取付けられていることを特徴とする請求項４に記載の制水体設置装置。   5. The water control body installation according to claim 4, wherein a bolt member having water tightness is attached to a bolt hole disposed substantially coaxially with the flange of the water control body, the sealing flange, and the joint ring. apparatus.
JP2008028136A 2008-02-07 2008-02-07 Water control body installation device Expired - Fee Related JP5183234B2 (en)

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