JP5896330B2 - Flange opening jig - Google Patents
Flange opening jig Download PDFInfo
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- JP5896330B2 JP5896330B2 JP2013119256A JP2013119256A JP5896330B2 JP 5896330 B2 JP5896330 B2 JP 5896330B2 JP 2013119256 A JP2013119256 A JP 2013119256A JP 2013119256 A JP2013119256 A JP 2013119256A JP 5896330 B2 JP5896330 B2 JP 5896330B2
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- wedge
- arm
- tip
- flange
- gasket
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Description
本発明は、配管のフランジ接続部のガスケット交換、仕切り板の着脱等の作業に使用するもので、並列になった楔の間にもう一つの楔を入れ、これらを回転可能に一体化した楔をフランジの間に打ち込み、押しボルトを回転させて、「はさみ」のように楔を開拡してフランジを開口する冶具に関するものである。 The present invention is used for exchanging gaskets at flange connection portions of pipes, attaching and detaching partition plates, etc., and inserts another wedge between parallel wedges, and these are integrated in a rotatable manner. The jig is driven between the flanges, the push bolt is rotated, and the wedge is widened like “scissors” to open the flange.
従来、配管のフランジ接続部のガスケット交換、仕切り板の着脱等の作業におけるフランジの開口作業は、楔をガスケット面の掃除、点検等に必要な間隔を確保するまで打ち込むと、楔の先端部がガスケット面にかかり、その部分の掃除、点検等ができないと共に、ガスケット、仕切り板の挿入の障害となっていた。そのため、開口したフランジの間に、ガスケット面にかからないようにかまし物を入れて楔を取り外したり、先端部がガスケット面にかからない二つ目の楔を打ち込んで、一つ目の楔を外したりして作業を行っていた。掃除、点検等の終了後は、本来なら、再度楔を打ち込んで、かまし物や二つ目の楔を取り外し、ガスケット、仕切り板が挿入できるまで楔を後退させ、それらを挿入し、楔を取り外さなければならないが、この作業に手間がかかるため、多くは再度楔を打ち込まず、そのまま無理矢理取り外し、ガスケット等に衝撃を与えていた。また、仕切り板の取り外しは、楔の先端が、ガスケット、仕切り板に当たって打ち込めないため、楔をフランジの接線方向に打ち込んだり、先端部に工具等を重ねて打ち込んだりして、ガスケット、仕切り板を取り外し、ガスケット等の挿入後は、上記と同じように行われていた。遊合形フランジの場合は、フランジが動くため、楔による開口はできず、配管をチエンブロック等で引っ張って開口していた。(仕切り板:配管、機器等のテストや縁切りのために、フランジとフランジの間に入れるガスケットと同径の板) Conventionally, flange opening operations such as gasket replacement of piping flange connection parts and attachment / detachment of partition plates are performed by driving the wedge until the gap necessary for cleaning and inspection of the gasket surface is secured. It covered the gasket surface, which could not be cleaned or inspected, and was an obstacle to the insertion of the gasket and partition plate. Therefore, insert a bite between the open flanges so that it does not touch the gasket surface and remove the wedge, or drive a second wedge whose tip does not touch the gasket surface and remove the first wedge. And was working. After cleaning, inspection, etc., normally, drive the wedge again, remove the bite and the second wedge, retract the wedge until the gasket and partition plate can be inserted, insert them, and insert the wedge. Although it has to be removed, this work takes time, and many do not drive the wedge again, forcibly removing it as it is, and impacting the gasket or the like. Also, when removing the partition plate, since the tip of the wedge hits the gasket and the partition plate and cannot be driven in, the wedge is driven in the tangential direction of the flange, or the tip or the like is overlaid with a tool or the like. After removal and insertion of a gasket or the like, it was performed in the same manner as described above. In the case of a loose-type flange, since the flange moves, the opening by the wedge cannot be made, and the pipe is opened by pulling it with a chain block or the like. (Partition plate: A plate with the same diameter as the gasket placed between the flanges for testing pipes, equipment, etc. and cutting edges)
これらは次のような欠点があった。
(イ)楔による開口は、先端部がガスケット面にかかり、その部分の掃除、点検等ができないと共に、ガスケットや仕切り板の挿入の障害となっていた。
(ロ)かまし物の挿入、二つ目の楔を打ち込み、およびそれらの取り外しには手間がかかっていた。
(ハ)前項(イ)のため、楔の先端部がかかったところのガスケット面の掃除、点検等が省略されることもあり、施工品質に問題があった。
(ニ)楔のフランジの接線方向の打ち込み、先端部に工具等を重ねての打ち込みは、困難であり、楔が外れて飛び、けがをする危険があった。
(ホ)二つ目の楔を打ち込んで一つ目の楔を外す方法は、二つ目の楔を打ち込んだ時、一つ目の楔が外れて落下する危険があり、高所における作業の安全性に問題があった。
(ヘ)かまし物や二つ目の楔のそのままでの取り外しは、ガスケット等への衝撃が大きく損傷することもあった。
(ト)遊合形フランジの開口は、配管をチエンブロック等で引っ張るための段取り、片付けに多くの手間がかかっていた。These have the following drawbacks.
(A) The opening by the wedge has a tip portion that is applied to the gasket surface, and that portion cannot be cleaned, inspected, etc., and has become an obstacle to insertion of the gasket and partition plate.
(B) It took time and effort to insert the bitten pieces, drive the second wedge, and remove them.
(C) for the item (i), cleaning of the gasket surface where the tip of the wedge is applied, sometimes and inspection is omitted, there is a problem in the construction quality.
(D) Driving in the tangential direction of the flange of the wedge and driving with a tool or the like piled on the tip is difficult and there is a risk that the wedge will come off and injure.
(E) The method of driving the second wedge and removing the first wedge has the risk that the first wedge will come off and fall when the second wedge is driven. There was a problem with safety.
(F) Removal of the bitten piece or the second wedge as it is may cause a significant damage to the gasket or the like.
(G) The opening of the loose-type flange took a lot of work to set up and clean up the piping with a chain block.
上記の欠点を除くため、柄(5)の先端の二股アーム(1)に、フランジ開口用の片方である形成された並列な楔(2),(2)を設け、後端には打撃部(6)を設けるとともに、後端部に斜めに穿設された貫通ネジ穴(7)を設ける。先端にもう片方の楔(13) が形成され、その反対側に柄(5)に密着可能な延長アーム(14)が設けられたアーム(12)が二股アーム(1)の間に、延長アーム(14)が柄(5)に密着する状態では 、三つの楔(2),(2),(13)に段差が無いように挿入されて、二股アーム(1) とアーム(12)がピン(3)で回転可能に結合されている、上記の貫通ネジ穴(7)に螺着された押しボルト(9)の先端が延長アーム(14)に当接するフランジ開口治具。 In order to eliminate the above drawbacks, the tip of the handle (5)Bifurcated arm (1)In,One for flange openingBeen formedParallel wedges (2) and (2) are provided, the rear end is provided with a striking part (6), and the rear end is obliqueWas drilled inThrough screw hole (7)Provide. At the tipThe other wedge (13) FormedClose contact with the handle (5) on the other sidePossibleExtension arm (14)Was providedArm (12)ButBetween the bifurcated arm (1),When the extension arm (14) is in close contact with the handle (5) ,Insert the three wedges (2), (2), and (13) without any step.Been,twocrotchArm (1) And arm (12)It is rotatably connected with the pin (3)IsA flange opening jig in which the tip of the push bolt (9) screwed into the through screw hole (7) contacts the extension arm (14).
配管のフランジ接続部のガスケット交換、仕切り板の着脱等の作業における本発明を使用したフランジの開口作業は、楔を打ち込みフランジの間にかまし物を入れて、その楔を外したり、二つ目の楔を打ち込んで一つ目の楔を外したりする必要がなく、楔の打ち込みは、あまり力がいらない最初のみで、押しボルトを回転させることによって、楔の先端部はガスケット面にかからず、テコの原理、ネジの作用によって小さい力で短時間に十分な開口ができる。これにより、ガスケット面の全面の掃除、点検等が確実に行うことができ、楔の先端は挿入するガスケットや仕切り板に当たらないようになっている。特に、狭所、および仕切り板の着脱作業には有効である。また、遊合形フランジの開口は、配管をチエンブロック等で引っ張る必要が無く、ラップジョイントにバンドを固定するだけで同様に開口することができ、リングジョイントのフランジ接続部にも適用できる。
以上により、作業時間の短縮、施工品質、および安全性の向上を図ることができる。Flange opening work using the present invention in operations such as replacing gaskets at the flange connection of piping and attaching / detaching partition plates is performed by inserting a wedge between the flanges and removing the wedge. It is not necessary to drive the wedge of the eye and remove the first wedge, and the wedge is driven only at the first time when less force is required. By rotating the push bolt, the tip of the wedge is not applied to the gasket surface. First, a sufficient opening can be made in a short time with a small force by the lever principle and the action of the screw. As a result, cleaning, inspection, etc. of the entire gasket surface can be performed reliably, and the tip of the wedge is prevented from hitting the gasket or partition plate to be inserted. In particular, this is effective for narrow spaces and for attaching / detaching partition plates. The opening of the loose flange does not need to be pulled by a chain block or the like, and can be similarly opened only by fixing the band to the lap joint, and can also be applied to the flange joint of the ring joint.
As described above, the working time can be shortened, the construction quality, and the safety can be improved.
以下、本発明を実施するための最良の形態について説明する。
柄(5)の先端の二股アーム(1)に、フランジ開口用の片方である形成された並列な楔(2),(2)を設け、後端には打撃部(6)を設けるとともに、後端部に打撃部(6)の方向に、斜めに穿設された貫通ネジ穴(7)を設ける。この貫通ネジ穴(7)にはぬすみ(8)が設けられ、押しボルト(9)の先端は、多少、変形しても柄(5)の内部に収納できる。先端にもう片方の楔(13)が形成され、その反対側に柄(5)に密着可能な延長アーム(14)が設けられたアーム(12)が二股アーム(1)の間に、延長アーム (14)が柄(5)に密着する状態では、三つの楔(2),(2),(13)に段差が無いように挿入されて、二股アーム(1)とアーム(12)がピン(3)で回転可能に結合されている。このピン(3)は両側にピン止め(4),(4)が取り付けられている。上記の貫通ネジ穴(7)に螺着された押しボルト(9)は、ナット(10)及び工具止め(11)が取り付けられ、先端が延長アーム(14)に当接するフランジ開口治具である。
Hereinafter, the best mode for carrying out the present invention will be described.
The bifurcated arm (1) at the front end of the handle (5) is provided with formed parallel wedges (2) and (2) which are one side for opening the flange, and provided with a striking part (6) at the rear end, A through screw hole (7) drilled obliquely is provided in the direction of the striking part (6) at the rear end . The penetration screw hole (7) is provided with a relief (8), and the tip of the push bolt (9) can be accommodated inside the handle (5) even if it is somewhat deformed. The other wedge (13) is formed at the tip, while arms adherable extension arm (14) is provided on the handle (5) on the opposite side (12) of the bifurcated arm (1), the extension arm in a state in which (14) comes into close contact with the handle (5), the three wedge (2), (2), (13) to be inserted as a step is not, a two crotch arm (1) and arm (12) A pin (3) is rotatably connected . This pin (3) is provided with pin stops (4) and (4) on both sides. The push bolt (9) screwed into the through screw hole (7) is a flange opening jig to which the nut (10) and the tool stopper (11) are attached and the tip abuts against the extension arm (14). .
本発明は以上のような構造で、一例として、配管(B),(B)に取り付けられたフランジ(A),(A)のガスケット交換作業について説明する。
押しボルト(9)を回し、柄(5)と延長アーム(14)が接した状態にして(図2参照)、フランジの間に楔(2),(2),(13)の先端を差し込み、打撃部(6)をハンマーでフランジ(A),(A)の側面の角に楔(2),(2),(13)の根元が当たるまで打ち込む(図5参照)。工具でナット(10)をフランジ(A),(A)の間がガスケット面の掃除、点検等に必要な間隔になるまで、回転させてフランジの開口を行う(図6参照)。挿入されていたガスケットを取り出し、ガスケット面の掃除、点検等を行い、新しいガスケットを挿入して、ナット(10)を工具で、柄(5)と延長アーム(14)が接するまで逆回転させる。打撃部(6)の左右をハンマーで交互に軽く打撃しながら、フランジ(A),(A)の間から抜き取る。なお、フランジ(A),(A)の間が楔(2),(2),(13)の根元より大きい場合は打ち込みを省略して開口する。また、(図7)に示す遊合形フランジのガスケット交換作業は、フランジ(A),(A)が移動するのを防止するため、バンド(E)をフランジ(A)に接触させながら、ラップジョイント(C)に固定する。この時、バンド(E)が溶接(D)にかからないようにし、もう一方も遊合形フランジであれば同じ作業を行って、上記と同様に開口してガスケット交換を行う。The present invention has the structure as described above. As an example, the gasket replacement work of the flanges (A) and (A) attached to the pipes (B) and (B) will be described.
Turn the push bolt (9) to bring the handle (5) into contact with the extension arm (14) (see Fig. 2), and insert the tips of the wedges (2), (2), (13) between the flanges. The hammering portion (6) is driven with a hammer until the roots of the wedges (2), (2), (13) hit the corners of the flanges (A), (A) (see FIG. 5). With the tool, the nut (10) is rotated until the gap between the flanges (A) and (A) is necessary for cleaning, inspection, etc. of the gasket surface to open the flange (see FIG. 6). The inserted gasket is taken out, the gasket surface is cleaned, inspected, etc., a new gasket is inserted, and the nut (10) is rotated with a tool until the handle (5) and the extension arm (14) contact each other. Pull out from between the flanges (A) and (A) while lightly striking the left and right of the striking part (6) alternately with a hammer. When the gap between the flanges (A) and (A) is larger than the roots of the wedges (2), (2), and (13), the opening is omitted. In addition, the gasket replacement operation of the loose flange shown in FIG. 7 is performed by wrapping the band (E) while contacting the flange (A) to prevent the flanges (A) and (A) from moving. Fix to the joint (C). At this time, the band (E) is prevented from being welded (D), and if the other is also a loose flange, the same operation is performed, and the gasket is exchanged by opening as described above.
1…二股アーム
2…並列な楔
3…ピン
4…ピン止め
5…柄
6…打撃部
7…貫通ネジ穴
8…ぬすみ
9…押しボルト
10…ナット
11…工具止め
12…アーム
13…楔
14…延長アーム
A…フランジ
B…配管
C…ラップジョイント
D…溶接
E…バンドDESCRIPTION OF
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2013119256A JP5896330B2 (en) | 2013-05-20 | 2013-05-20 | Flange opening jig |
Applications Claiming Priority (1)
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JP2013119256A JP5896330B2 (en) | 2013-05-20 | 2013-05-20 | Flange opening jig |
Publications (2)
Publication Number | Publication Date |
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JP2014226774A JP2014226774A (en) | 2014-12-08 |
JP5896330B2 true JP5896330B2 (en) | 2016-03-30 |
Family
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JP2013119256A Expired - Fee Related JP5896330B2 (en) | 2013-05-20 | 2013-05-20 | Flange opening jig |
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JP (1) | JP5896330B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6373136B2 (en) * | 2013-09-19 | 2018-08-15 | コヴィディエンジャパン株式会社 | Medical removal tool |
CN107053076B (en) * | 2017-05-11 | 2019-08-13 | 广西桂冠电力股份有限公司大化水力发电总厂 | Hydrogenerator brakes the disassembly of air lock, installation method |
RU195777U1 (en) * | 2019-12-13 | 2020-02-05 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Flange Expander |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02160480A (en) * | 1988-12-07 | 1990-06-20 | Power Reactor & Nuclear Fuel Dev Corp | Opening jig for flange |
US5678293A (en) * | 1995-10-10 | 1997-10-21 | George A. Sturdevant, Inc. | Tool for spreading opposed members apart |
AUPQ543100A0 (en) * | 2000-02-04 | 2000-02-24 | Banko, Dinko | Flange splitting device |
US8266774B1 (en) * | 2008-02-19 | 2012-09-18 | Doty Walter M | Lever action pipe flange spreader |
JP2011174599A (en) * | 2010-02-24 | 2011-09-08 | Toshio Makita | Flange opening tool of piping |
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