JPH0351599A - Water stop construction for pipe body such as water supply pipe and water stopping fitting used therefor - Google Patents
Water stop construction for pipe body such as water supply pipe and water stopping fitting used thereforInfo
- Publication number
- JPH0351599A JPH0351599A JP1187909A JP18790989A JPH0351599A JP H0351599 A JPH0351599 A JP H0351599A JP 1187909 A JP1187909 A JP 1187909A JP 18790989 A JP18790989 A JP 18790989A JP H0351599 A JPH0351599 A JP H0351599A
- Authority
- JP
- Japan
- Prior art keywords
- water
- pipe
- pipe body
- hole
- annular seal
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 238000010276 construction Methods 0.000 title claims description 12
- 238000005553 drilling Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 abstract description 12
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Domestic Plumbing Installations (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は水道管等の既設配管の修繕，分岐配管の追加作
業等を行う場合にその上流側の位置で止水を図るための
止水工法と、それに使用される止水用器具ｊこ関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention is a water stopper for stopping water at an upstream position when repairing existing pipes such as water pipes or adding branch pipes. Concerning the construction method and the water stop equipment used for it.
（従来の技術）
従来、この種止水工法としては、第８図に示す手段が存
在する。(Prior Art) Conventionally, as this type of water stop construction method, there is a means shown in FIG. 8.
この従来の手段は、同図（イ）の如く既設の管体１７日
を切断した後に、その切断開口部４ｏから所定構造の止
水用器具１６ｅを挿入し、その後同図（口）の如く止水
用器具１６ｅの環状シール体１２ｅを半径方向に拡張さ
せて、管体１７８の止水を図るものである。ここに、前
記止水用器具１６ｅは、固定軸４１に螺合された移動軸
４２を回転させて環状シール体１２ｅの前後両側の挟圧
片４３， ４３ａ間の距離を縮めることにより環状シー
ル体１２ｅがその半径方向に拡張する様に構成されたも
のである。This conventional means involves cutting the existing pipe 17 as shown in the figure (a), inserting a water stopper 16e of a predetermined structure through the cut opening 4o, and then The annular seal body 12e of the water stop device 16e is expanded in the radial direction to stop water from the pipe body 178. Here, the water stopping device 16e rotates the movable shaft 42 screwed onto the fixed shaft 41 to reduce the distance between the pressure pieces 43, 43a on both the front and rear sides of the annular seal body 12e. 12e is configured to expand in its radial direction.
一方、前記以外の他の手段として、従来、特公昭５１−
３３６号，或いは特開昭５７− １８６６９４号公報所
載のものも存在する。On the other hand, as other means other than the above, conventionally,
There are also those published in No. 336 or Japanese Patent Application Laid-open No. 186694/1983.
当該手段は、第９図（イ）の如く管体＋７ｆにＴ字状の
外側カバー管４４を取付けてカッター２５ｓを挿入させ
て、同図（口）の如く管体１７ｆの上壁に孔２２を穿設
し、その後同図（ハ）の如く該孔２２から弾性シール材
４５を備えた弁体４６を管体１７ｆ内に挿入して、管体
内流路と前記孔２２を同時に閉塞させるものである。This means attaches the T-shaped outer cover tube 44 to the tube body +7f as shown in FIG. A valve body 46 equipped with an elastic sealing material 45 is then inserted into the tube body 17f from the hole 22 as shown in FIG. It is.
（発明か解決しようとする課題）
しかしながら、前記前者の第８図に示す手段では、管体
１７ｅの内周の全面に環状シール体１２ｅを圧接させる
ことができて優れた辻水性が得られるものの、実用面で
次の様な問題点を生じていた。(Problems to be Solved by the Invention) However, in the former method shown in FIG. 8, the annular seal body 12e can be brought into pressure contact with the entire inner circumference of the pipe body 17e, and excellent water leakage properties can be obtained. However, in practical terms, the following problems have arisen.
即ち、この前者の手段では、管体１７ｅを完全に切断し
てその切断開口部の一端側から止水用器具１６ｅを挿入
させるために、該止水用器具１６ｅを管体１７ｓの前方
位置に配置させて操作するためのスペースを確保する必
要がある。従って、管体１７Ｂが地中に埋設されている
場合に地面の掘削面積を非常に大きくせねばならず、係
る作業性で難点を生じていた。That is, in the former method, in order to completely cut the tube 17e and insert the water stop device 16e from one end side of the cutting opening, the water stop device 16e is placed in the front position of the tube 17s. It is necessary to secure space for placement and operation. Therefore, when the pipe body 17B is buried underground, the excavation area of the ground must be made very large, which causes problems in workability.
また、管体１７ｅを完全に切断させる手段では、工事終
了後、管体の止水の必要性が無くなって該管体を元の状
態に修復させるには、管体１７ｅを他の下流側の管体１
７８’と連結させる必要がある。ここに、両管体の連結
を行うには該管体１７Ｂ，Ｔγｅ′の端部に管継手を接
続するためのネジ部を加工する様な必要がある。従って
、管体の修復作業が煩雑で長時間を要するものとなって
いた。In addition, with the means of completely cutting the pipe body 17e, in order to restore the pipe body to its original state after the construction is completed and there is no longer a need to stop the water in the pipe body, it is necessary to cut the pipe body 17e to another downstream side. Tube 1
It is necessary to connect it with 78'. Here, in order to connect both tube bodies, it is necessary to process threaded portions for connecting pipe joints to the ends of the tube bodies 17B and Tγe'. Therefore, repair work for the pipe body has become complicated and takes a long time.
しかも、前記前者の手段では、管体１７ｅを切断してか
らその内部を止水用器具ＩＢｅで止水する迄の期間中に
於いて、管体の切断開口部４０から大量の漏水が発生す
るが、従来ではこれを適切に解消できる適当な手段は開
発されていないのが実情である。従って、上記前者の手
段では、漏水に原因する水の無駄が多い他、作業現場が
水浸しとなって作業環境を悪化させ、又大量の水を吐出
する管体開口部４０から止水用器具１６ｅをその内部に
挿入させる作業性も悪くなるという問題点をも有してい
た。Moreover, in the former method, a large amount of water leaks from the cutting opening 40 of the pipe during the period from cutting the pipe 17e to stopping water inside the pipe using the water stop device IBe. However, the reality is that no suitable means to solve this problem has been developed so far. Therefore, in the former method, not only is there a lot of water wasted due to water leakage, but also the work site is flooded with water, deteriorating the work environment, and a large amount of water is discharged from the water stopper 16e from the pipe opening 40. Another problem was that the workability of inserting the material into the inside of the material was also poor.
方、上記後者の第９図の手段では、管体＋７ｆの外周壁
面に孔２２を穿設する手段であるから、同図の如く孔２
２の穿孔作業及び弁体４６の挿入作業の際に漏水防止用
の弁付カバ一体２３ｅを利用することにより、一連の作
業中に孔２２からの漏水防止が図れ、又地面の掘削面積
の減少が図れる。On the other hand, in the latter method shown in FIG. 9, since the hole 22 is bored in the outer circumferential wall surface of the tube body +7f, the hole 22 is formed as shown in the same figure.
By using the integral valve cover 23e for water leakage prevention during the drilling work and the insertion work of the valve body 46 in step 2, it is possible to prevent water from leaking from the hole 22 during the series of work, and also to reduce the excavated area of the ground. can be achieved.
しかるに、当該後者の手段は弁体４６を管体内周面に圧
接させるだけではその止水が充分ではなく、孔２２の開
口位置をも閉塞せねばならないが、該孔２２は同図（二
）の如くその開口内周縁Ａ， Ａの位置が非常に鋭利な
状態で形成されている。従って、当該鋭利な部位Ａに弁
体４６の弾性シール材４５を圧接させたのでは、当該シ
ール材４５に亀裂が発生して損傷し、当該部位から漏水
を生じて、確実な止水が図れなくなる様な問題点を生じ
ていた。However, with the latter means, simply pressing the valve body 46 against the inner circumferential surface of the tube is not sufficient to stop the water, and the opening position of the hole 22 must also be closed. The inner peripheral edges A, A of the opening are formed in a very sharp position as shown in FIG. Therefore, if the elastic sealing material 45 of the valve body 46 is brought into pressure contact with the sharp portion A, cracks will occur in the sealing material 45 and damage will occur, causing water to leak from the portion, making it impossible to ensure water stoppage. This caused problems that seemed to disappear.
それ故、本発明は既設管体への一連の止水作業性を容易
なものとすることは勿論のこと、その後の管体の修復作
業を容易なものにさせると同時に、管体の止水状態時に
於いて止水シール不良を生じさせずに適切な止水シール
性を確保して不当な漏水を生じさせない様にすることを
、その目的とする。Therefore, the present invention not only facilitates a series of water-stopping operations for existing pipe bodies, but also facilitates the subsequent repair work of the pipe bodies. The purpose is to ensure appropriate water-stop sealing performance without causing water-stop seal failure in the state, and to prevent undue water leakage.
（課題を解決するための手段）
本発明は上記従来の前者の手段に採用されていた止水性
に優れた止水用器具を改良して、この止水用器具を切断
管体の側部から管体内の良好な止水が図れる位置へ挿入
させることにより、上記従来の課題を解決せんとして構
戊されたものである。(Means for Solving the Problems) The present invention improves the water-stopping device with excellent water-stopping properties employed in the former conventional means, and the water-stopping device is installed from the side of the cutting pipe body. This structure was designed to solve the above-mentioned conventional problems by inserting the tube into a position where good water stoppage can be achieved within the tube.
すなわち、第１に本発明は、止水対象管体１７の側壁に
孔２２を穿設した後に、半径方向に拡縮変形自在な環状
シール体１２が支持杆１の先端部に該支持杆１の長手方
向と相違する横方向に屈曲回転変移可能に設けられた止
水用器具１６を、前記孔２２から管体１７内に挿入させ
て、該止水用器具１６の環状シール体１２を前記孔２２
の開口位置から離れて該孔２２が穿設されていない管体
内部位置に配置させ、その後該止水用器具１６の環状シ
ール体１２をその半径方向に拡張させて管体１７の内周
面に圧接させることにより該管体１７内の止水を行う、
水道配管等の管体の止水玉法である。That is, firstly, in the present invention, after the hole 22 is bored in the side wall of the water stop target pipe body 17, the annular seal body 12, which can be expanded and contracted in the radial direction, is attached to the tip of the support rod 1. The water-stopping device 16, which is provided so as to be able to bend and rotate in a lateral direction different from the longitudinal direction, is inserted into the tube body 17 through the hole 22, and the annular seal body 12 of the water-stopping device 16 is inserted into the tube body 17 through the hole 22. 22
The annular seal body 12 of the water-stopping device 16 is expanded in the radial direction, and the annular seal body 12 of the water-stopping device 16 is expanded in the radial direction, and the inner circumferential surface of the tube body 17 is The water in the pipe body 17 is stopped by bringing it into pressure contact with the pipe body 17.
This is a water stop bead method for pipes such as water pipes.
第２に本発明は、上記構成の止水工法に於いて、孔２２
の穿設作業を行う以前に、止水用の弁１９を備えた弁付
ケーシング２３を連設してなる補助管１８を予め管体１
７の外側面部に該管体Ｉ７に対して傾斜状態で装着させ
て、管体１７の側壁への孔２２の穿設作業を弁付ケーシ
ング２３及び補助管１８内に挿入した穿孔具２５で行い
、且つ管体１７内への止水用器具１６の挿入作業を前記
弁付ケーシング２３及び補助管１８内に止水用器具１６
を挿入させて行う、水道配管等の管体の止水工法である
。Second, the present invention provides a water stop construction method having the above structure, in which the hole 22
Before carrying out the drilling work, an auxiliary pipe 18 consisting of a valved casing 23 equipped with a water stop valve 19 is installed in advance in the pipe body 1.
The hole 22 is drilled in the side wall of the tube body 17 using a punching tool 25 inserted into the valved casing 23 and the auxiliary tube 18. , and inserting the water stop device 16 into the pipe body 17 into the valved casing 23 and the auxiliary pipe 18.
This is a water-stopping construction method for pipe bodies such as water pipes, which is performed by inserting water pipes.
第３に本発明は、上記第１又は第２の止水工法を行うた
めの止水用器具として、止水対象管体１γ内に挿入され
て該管体１７内の流水路を閉塞するための拡縮変形自在
な環状シール体１２が支持杆１の先端側に設けられてな
る水道配管等の管体の止水用器具に於いて、前記支持杆
１は、環状シール体１２を支持杆１の長手方向と相違す
る横方向に屈曲回転変移可能とすべく少なくともその先
端側の一箇所以上の部位が屈曲自在に形成されてなる、
水道配管等の管体の止水用器具である。Thirdly, the present invention is a water stopping device for performing the above-mentioned first or second water stopping method, which is inserted into the pipe body 1γ to block water flow in the pipe body 17. In a water stop device for a pipe body such as a water pipe, in which an annular seal body 12 that can be expanded and contracted is provided at the distal end side of a support rod 1, the support rod 1 has an annular seal body 12 attached to the support rod 1. At least one or more portions on the distal end thereof are formed to be bendable so as to be able to bend and rotate in a lateral direction different from the longitudinal direction.
This is a water stop device for pipe bodies such as water pipes.
（作用）
上記第１及び第２の構戊の止水工法では、止水用器具１
６として環状シール体１２を支持杆１の長手方向と相違
する横方向に屈曲回転変移可能に設けたものを用いたた
めに、止水対象管体１７の側壁に穿設した孔２２から管
体１７内に挿入させた止水用器具１６の環状シール体１
２を管体１７内で屈曲回転させて孔２２が穿設されてい
ない所定の管体内部位置に配置させることができ、これ
によって該管体１７内の止水が図れることとなった。(Function) In the first and second structural water stop construction methods described above, the water stop equipment 1
6, the annular seal body 12 is provided so as to be able to bend and rotate in a lateral direction different from the longitudinal direction of the support rod 1. Annular seal body 1 of water stop device 16 inserted inside
2 can be bent and rotated within the tubular body 17 to be placed at a predetermined position inside the tubular body where the hole 22 is not bored, thereby making it possible to stop water in the tubular body 17.
而して、止水用器具１６を管体１７の側壁に穿設した孔
２２から挿入させてなるために、咳管体１７内への止水
用器具１６の挿入作業は管体１７の上方等の位置から簡
易に行え、止水用器具１６を操作するための作業スペー
スを孔２２の穿設作業用のスペースとは別に大きくとる
必要がない。又、止水対象管体１７を完全に切断するも
のではないから、その修復作業に際しては管体１７を煩
雑な作業で連結させる様な必要性がなくなる。更に、環
状シール体１２を孔２２が穿設されていない位置で拡張
させる手段では、環状シール体１２で孔２２をシールす
る必要性も無い。管体１７の止水は環状シール体１２と
管体１７の９
内周面とを圧接させるだけて賄えることとなる。Since the water stop device 16 is inserted through the hole 22 formed in the side wall of the tube body 17, the work of inserting the water stop device 16 into the cough tube body 17 is performed at the upper part of the tube body 17. This can be easily carried out from any position such as, and there is no need to provide a large work space for operating the water stop device 16 in addition to the space for drilling the holes 22. Further, since the pipe body 17 to be water-stopped is not completely cut off, there is no need to connect the pipe bodies 17 through complicated work during repair work. Further, by expanding the annular seal body 12 at a position where the hole 22 is not formed, there is no need to seal the hole 22 with the annular seal body 12. The water stoppage of the tube body 17 can be achieved by simply bringing the annular seal body 12 and the inner circumferential surface of the tube body 17 into pressure contact.
更に、上記第２の構戊の弁付ケーシング２３を連設した
補助管１８を管体１７の外側面部に傾斜状に装着させた
状態で所定の一連の作業を行う手段に於いては、孔２２
の穿設並びに止水用器具１６の挿入作業の何れの作業を
行う場合にも弁付ケーシング２３の外端開口部又は弁１
９の位置の止氷状態を維持させておくことにより、管体
１７内の水流が管体外部に不当に漏水することを適切に
防止できることとなる。又、補助管１Ｂは傾斜状態てあ
るから、止水用器具１６を管体１７内に挿入させる際に
管体１７に対して斜め方向から挿入できることとなり、
環状シール体１２を孔２２の非穿設位置まで挿入させる
作業が容易となる。これによって孔２２を大面積に穿設
する必要性も無くなる。Furthermore, in the means for carrying out a predetermined series of operations with the auxiliary pipe 18 having the valve-equipped casing 23 of the second structure connected thereto installed in an inclined manner on the outer surface of the pipe body 17, a hole is provided. 22
The outer end opening of the valve-equipped casing 23 or the valve 1 is
By maintaining the frozen state at position 9, it is possible to appropriately prevent the water flow inside the tube body 17 from unduly leaking to the outside of the tube body. Further, since the auxiliary pipe 1B is inclined, when inserting the water stop device 16 into the pipe body 17, it can be inserted from an oblique direction to the pipe body 17.
This facilitates the operation of inserting the annular seal body 12 into the hole 22 to the non-drilling position. This also eliminates the need to drill holes 22 over a large area.
更に、上記第３の構成の環状シール体１２が支持杆１の
長平方向とは相違する横方向に屈曲回転変移自在に形成
された止水用器具１６では、止水対象管体１７の側壁に
穿設された孔２２から止水用器具１６を挿入させる際に
、環状シール体１２を屈曲回転さ１０
せ得て、孔２２の穿設位置に止まらず、該孔２２から離
れた所定の位置に適切に配置挿入させることができ、上
記第１及び第２の工法を適切に実施できることとなる。Furthermore, in the water stop device 16 in which the annular seal body 12 of the third configuration is formed so as to be able to bend and rotate freely in a lateral direction different from the longitudinal direction of the support rod 1, the annular seal body 12 is formed to be able to bend and rotate freely in a lateral direction different from the longitudinal direction of the support rod 1. When the water stop device 16 is inserted through the drilled hole 22, the annular seal body 12 can be bent and rotated 10, so that the annular seal body 12 does not stay at the drilled position of the hole 22, but moves to a predetermined position away from the hole 22. can be appropriately placed and inserted, and the first and second construction methods described above can be appropriately implemented.
（実施例） 以下、本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
第１図中、１は複数本の支持パイブｌａ， ｌｂ， Ｉ
ｃを連結部２７， ２７ａを介して一連に連結して構戊
された中空状の支持杆で、各支持パイプＩａ， ｌｂ，
ｌｃの各連結端には相互に球面摺動自在に嵌合する膨
出球面部２ａ， ２ｂ・・・２ｄが形成されている。３
ａ， ３ｂ・・・３ｄは相互に嵌合した膨出球面部２ａ
， ２ｂ及び２Ｃ， ２ｄどうしの抜止用フランジで、
各膨出球面部２ａ＋ ２ｂ・・・２ｄの位置に係合すべ
く外嵌されてボルトナット４・・・により二個一対で締
着されている。係る連結構造により前記支持杆１の先端
側の支持パイブ１ａ＋１ｂは他の最長の支持パイプＩＣ
の長手方向に対して屈曲自在である。又、各膨出球面部
２ａ・・・２ｄの内面又は外面には同図（口）の如く相
互に咬合するスプライン溝５・・・ｒ ５ａ・・・が刻
設され、これによって各支持パイプＪａｒ Ｉｂ＋ ｌ
ｃは相対回転不能な状態に設定されている。６は支持杆
１の一端に設けられたレバーハンドルである。In Fig. 1, 1 indicates a plurality of support pipes la, lb, I
Each support pipe Ia, lb,
Each connecting end of the lc is formed with bulging spherical portions 2a, 2b, . . . , 2d that are slidably fitted into each other. 3
a, 3b...3d are mutually fitted bulging spherical parts 2a
, 2b, 2C, 2d with a retaining flange,
The bulging spherical portions 2a+, 2b, . . . , 2d are externally fitted to engage with each other, and are fastened in pairs with bolts and nuts 4, . Due to this connection structure, the support pipes 1a+1b on the tip side of the support rod 1 are connected to the other longest support pipes IC.
It is flexible in the longitudinal direction. In addition, spline grooves 5...r5a... which engage with each other as shown in the figure (opening) are carved on the inner or outer surface of each of the bulging spherical portions 2a...2d, thereby allowing each support pipe to Jar Ib+ l
c is set in a state in which relative rotation is not possible. 6 is a lever handle provided at one end of the support rod 1.
７は支持杆１の内部に比較的緩い状態で挿入された回転
操作ロツドで、支持杆１の支持バイブ１ａ．１ｂ・・・
に対応する複数の軸体７ａ＋ ７ｂ，７ｃを支持杆１の
屈曲変移に伴って屈曲する様に連結したものである。連
結手段の一例としては、同図（ハ）の如く、各軸体７ａ
＋ ７ｂ＋ ７ｃの連結端部に刻設された凹溝８，８ａ
・・・に連結用リンク２８， ２８８を挿入してピン７
０． １０・・・で各軸体の軸長方向の相対回転を阻止
した連結手段を採用すればよい。１１は回転操作ロッド
７のレバーハンドルである。Reference numeral 7 denotes a rotary operation rod that is inserted into the support rod 1 in a relatively loose state, and is connected to the support vibrations 1a. 1b...
A plurality of shaft bodies 7a+7b, 7c corresponding to the support rod 1 are connected so as to be bent as the support rod 1 is bent. As an example of the connecting means, as shown in FIG.
+ Concave grooves 8, 8a carved in the connecting end of 7b + 7c
... Insert the connecting links 28, 288 into the pin 7.
0. 10... may employ a connecting means that prevents relative rotation of each shaft body in the axial direction. 11 is a lever handle of the rotary operating rod 7.
１２は回転操作ロツド７の先端に螺着されたネジ軸部１
４に外嵌装着された環状シール体で、合或ゴムの如き弾
性部材から形成されている。１３． １３ａは該環状シ
ール体１２の両側に配された挾圧板で、支持パイブ１ａ
の先端部に固定された一方の挟圧板１３にはネジ軸部１
４が螺合状態で貫通し、該ネジ軸１ｌ
部１４の先端部に他方の挟圧板１３１が固着されている
。これによって、該他方の挾圧板１３ａは回転操作ロツ
ド７の軸体７ａの正逆両回転により矢印ｂ方向に往復自
在となり、環状シール体１２はその軸長方向に圧縮及び
圧縮解除されることにより半径方向に拡縮自在である。Reference numeral 12 denotes a screw shaft portion 1 screwed onto the tip of the rotation operation rod 7.
4 is an annular seal body that is fitted onto the outside of the ring and is made of an elastic member such as rubber. 13. Reference numeral 13a denotes clamping pressure plates arranged on both sides of the annular seal body 12, and the supporting pipe 1a
One clamping plate 13 fixed to the tip of the screw shaft 1
4 passes through the screw shaft 1l in a screwed state, and the other clamping plate 131 is fixed to the tip of the screw shaft 1l portion 14. As a result, the other clamping pressure plate 13a can freely reciprocate in the direction of arrow b by the forward and reverse rotation of the shaft body 7a of the rotary operation rod 7, and the annular seal body 12 is compressed and decompressed in its axial direction. It can be expanded and contracted in the radial direction.
１５は一方の可動側挟圧板Ｉ３ａの先端側に形成された
円錐状のガイド部を示す。Reference numeral 15 indicates a conical guide portion formed on the tip side of one of the movable pressure plates I3a.
本実施例に係る止水用器具１６は以上の構成からなる。The water stop device 16 according to this embodiment has the above configuration.
〔止水工法の実施例）
次に、上記止水用器具１６を用いた既設の水道用管体１
７の止水工法の一例について説明する。[Example of water stop construction method] Next, the existing water pipe body 1 using the water stop device 16 described above will be explained.
An example of water stoppage construction method No. 7 will be explained.
先ず、第２図の如く、止水対象管体１７に補助管１８を
傾斜状態で装着させる。ここに、補助管１８は二つ割り
円筒形状の一対のホルダー１９． １９８の一方側の部
材１９に傾斜状態で一体的に連設されたもので、前記ホ
ルダー１９． １９ａで管体１７の上下両面面を挟んで
ボルトナット２０． ２０ａで両者を締付けることによ
り、該ホルダー１９， １９ａと補助管１８とを前記管
体１７へ固定装着できる。２１． ２１は漏水防１３
止用の０リング状のシール用パッキンである。First, as shown in FIG. 2, the auxiliary pipe 18 is attached to the pipe body 17 to be water-stopped in an inclined state. Here, the auxiliary tube 18 is connected to a pair of holders 19 in the shape of a two-split cylinder. 198, which is integrally connected to the member 19 on one side of the holder 19. Bolts and nuts 20.19a sandwich both upper and lower surfaces of the tube body 17. By tightening both with 20a, the holders 19, 19a and the auxiliary tube 18 can be fixedly attached to the tube body 17. 21. 21 is an O-ring-shaped sealing packing for preventing water leakage 13 .
次に、補助管１８の装着後は、第３図の如く補助管１８
の中空内部に対峙する管体１７の外壁面に孔２２の穿孔
作業を行う。当該穿孔作業は、先ず補助管１８の先端側
に開閉操作自在な例えばバタフライ弁の如き弁１９を具
備した弁付ケーシング２３を螺着して、その外端開口部
２６を閉塞するキャップ２４を具備する穿孔具２５を弁
付ケーシング２３に装着する。Next, after installing the auxiliary tube 18, as shown in FIG.
A hole 22 is drilled in the outer wall surface of the tube body 17 facing the hollow interior of the tube body 17. In the drilling operation, first, a valved casing 23 equipped with a valve 19, such as a butterfly valve, which can be opened and closed, is screwed onto the tip side of the auxiliary pipe 18, and a cap 24 is installed to close the outer end opening 26 of the casing 23. A drilling tool 25 is attached to the valved casing 23.
尚、穿孔具２５の一例としては高圧水噴射ノズルが適用
できる。Note that, as an example of the drilling tool 25, a high-pressure water jet nozzle can be applied.
また、その後は弁１９を開放させた状態で穿孔具２５を
補助管１日内の奥部に挿入させて穿孔具２５から高圧水
を吐出させて管体１７の外壁面に円状の孔２２を穿設で
きる。高圧水噴射による穿孔作業では、管体１７に対す
る斜め方向の穿孔が容易に行える。After that, with the valve 19 open, the drilling tool 25 is inserted deep into the auxiliary pipe, and high-pressure water is discharged from the drilling tool 25 to form a circular hole 22 in the outer wall surface of the pipe body 17. Can be drilled. In the drilling operation using high-pressure water jet, the pipe body 17 can be easily drilled in an oblique direction.
尚、管体１７内を流通する水道水は孔２２の穿孔により
補助管１８及び弁付ケーシング２３内に流入するが、当
該流水はキャップ２４によって適切に止水され、外部に
漏水することはない。穿孔具２５を取り外す作業は、該
穿孔具２５の先端部を弁１９の上部位置ま１４
で引き上げて該弁１９を閉じた状態で行えばよい。Note that tap water flowing through the pipe body 17 flows into the auxiliary pipe 18 and the valved casing 23 through the perforation of the hole 22, but the flowing water is appropriately stopped by the cap 24 and does not leak to the outside. . The operation for removing the punch 25 can be carried out with the tip of the punch 25 pulled up to the upper position 14 of the valve 19 and with the valve 19 closed.
これによって、補助管１８から外部への漏水を弁１９に
よって阻止できる。Thereby, water leakage from the auxiliary pipe 18 to the outside can be prevented by the valve 19.
上記穿孔作業終了後は、上記第１図の止水用器具１６を
第４図の如く弁付ケーシング２３の外端開口部２６から
補助管１８内に挿入し、更に孔２２を介して管体１７内
に挿入させる。又、係る挿入作業時にはキャップ２４ａ
で外端開口部２６を閉塞して弁１９を開放することによ
り外部への漏水を生じさせることなく適切に行える。After completing the above-mentioned drilling work, insert the water stop device 16 shown in FIG. 1 into the auxiliary pipe 18 from the outer end opening 26 of the valve casing 23 as shown in FIG. 17. Also, during such insertion work, the cap 24a
By closing the outer end opening 26 and opening the valve 19, this can be done appropriately without causing water leakage to the outside.
而して、止水用器具１６の先端部は只単に孔２２の開口
位置に止めるのではなく、第５図の様に孔２２から適当
な寸法Ｌだけ離れた管体１７内の奥部に配置させる。止
水用器具１６の支持杆１が単なる棒状の如きものであれ
ば上記挿入作業は極めて困難であるが、本発明に係る止
水用器具１６の支持杆１及びその内部の回転操作ロツド
７は屈曲変移自在なものであるから、上記作業が適切に
行える。また、止水用器具１６の挿入作業は管体１７の
上方から行うために、該止水用器具１６の挿入作業の特
別なスぺ１
５
一スを別途確保する必要性がない。よって、地面の掘削
面積を大きくとる必要性はない。Therefore, the tip of the water stopper 16 is not simply stopped at the opening position of the hole 22, but is placed deep inside the tube body 17 at an appropriate distance L from the hole 22, as shown in FIG. have it placed. If the support rod 1 of the water stop device 16 is a simple rod-shaped one, the above-mentioned insertion operation is extremely difficult, but the support rod 1 of the water stop device 16 and the rotation operation rod 7 inside thereof according to the present invention Since it is bendable, the above operations can be performed appropriately. Furthermore, since the water-stopping device 16 is inserted from above the tube body 17, there is no need to separately secure a special space for inserting the water-stopping device 16. Therefore, there is no need to increase the excavation area of the ground.
上記の如くして、止水用器具１６の環状シール体１２を
孔２２が穿設されていない位置に配置させた後には、レ
バーハンドル１１を操作して回転操作ロツド７を回転さ
せればよい。これによって、第６図の如く環状シール体
１２は一対の挟持板１３． １３ａで挟圧されて、半径
方向に拡張して管体１７の内周面の全面に圧接する。こ
こに、該環状シール体１２は孔２２の存在しない位置で
その全周が管体１７の内周面に圧接するために、その止
水シール性は非常に良好となる。管体１７の内面にスラ
ッジが存在したり、或いは管体１７が楕円状に多少変形
している場合であっても、それに原因するシール不良は
非常に生じ難いものとなる。よって、管体１７を止水用
器具１６によって略完全な止水状態を維持でき、下流側
で行われる修繕作業等に何ら不都合を生じさせない。After the annular seal body 12 of the water stop device 16 is placed in a position where the hole 22 is not bored as described above, the lever handle 11 may be operated to rotate the rotation operating rod 7. . As a result, as shown in FIG. It is compressed by the tube 13a, expands in the radial direction, and comes into pressure contact with the entire inner circumferential surface of the tube body 17. Here, since the entire circumference of the annular seal body 12 is in pressure contact with the inner circumferential surface of the tube body 17 at a position where the hole 22 is not present, its watertight sealing performance is very good. Even if sludge exists on the inner surface of the tubular body 17 or the tubular body 17 is slightly deformed into an elliptical shape, sealing failures caused by this are extremely unlikely to occur. Therefore, the pipe body 17 can be maintained in a substantially completely water-tight state by the water-stopping device 16, and no inconvenience will be caused in the repair work performed on the downstream side.
また、上記止水状態を解除して管体１７を修復させる場
合には、前記とは逆に止水用器具１６の回転１
６
操作ロツド７の操作により環状シール体１２を縮小させ
て補助管１８及び弁付ケーシング２３から抜き取ればよ
い。環状シール体１２を弁１９の上方に引き上げた後に
該弁１９を閉じて、止水用器具１６全体を抜き取れば、
やはり不当な漏水を生じさせない。In addition, when the above-mentioned water stop state is released and the pipe body 17 is repaired, the annular seal body 12 is contracted by rotating the water stop device 16 by operating the operating rod 7, contrary to the above, and the auxiliary pipe is 18 and the valved casing 23. If the annular seal body 12 is pulled up above the valve 19, the valve 19 is closed, and the entire water stop device 16 is removed.
After all, it does not cause unnecessary water leakage.
尚、上記実施例の止水用器具１６は、回転操作ロッド７
の回転で一対の挟圧板１３． １３ａ間の寸法を増減さ
せて環状シール体１２が拡縮自在となる様に構戒されて
いるが、本発明では係る構成に決して限定されない。It should be noted that the water stop device 16 of the above embodiment has a rotary operation rod 7.
The rotation of the pair of pressure plates 13. Although the annular seal body 12 is designed to be able to expand and contract by increasing and decreasing the dimensions between the sections 13a, the present invention is by no means limited to such a configuration.
例えば、第７図（イ）の如く、弾性部材からなる環状シ
ール体１２の先端側に該環状シール体１２の内径Ｏａよ
りも外径ｏｂの大きいガイド体２８を操作レバー２９の
操作によって往復前後動自在となる様に設けたものでも
よい。当該手段では、ガイド体２８が矢印Ｃ方向に引っ
張られて環状シール体１２の内側に強制的に嵌入される
ことにより、環状シール体１２の外径が拡張し、前記と
同様な止水機能が得られる。また、同図（口）の様に、
環状シール体１７
１２をチューブ状に形成して、該環状シール体１２内に
工７又は水等の流体を可撓性のある耐圧ホース等で供給
させて拡張させる様な手段を適用してもよい。本発明に
係る止水用器具の環状シール体１２は、要はその半径方
向に拡縮変形自在に構戊されていればよい。For example, as shown in FIG. 7(a), a guide body 28 having an outer diameter ob larger than the inner diameter Oa of the annular seal body 12 is reciprocated back and forth by operating a control lever 29 on the distal end side of the annular seal body 12 made of an elastic member. It may be provided so that it can move freely. In this means, the guide body 28 is pulled in the direction of arrow C and is forcibly fitted inside the annular seal body 12, thereby expanding the outer diameter of the annular seal body 12 and achieving the same water stop function as described above. can get. Also, as shown in the same figure (mouth),
It is also possible to apply means such as forming the annular seal body 17 and 12 into a tube shape and supplying a fluid such as water or water into the annular seal body 12 with a flexible pressure-resistant hose or the like to expand the annular seal body 17. good. The annular seal body 12 of the water stop device according to the present invention needs only to be able to expand and contract in the radial direction.
また、支持杆１の構成も上記の如く限定されず、要は環
状シール体１２を支持杆１の長手力向と相違する横方向
に屈曲回転変移可能とすべく少なくともその先端側の一
箇所以上の部位が屈曲自在に形成されていればよい。連
結部２７の具体的な構或は上記実施例の膨出球面部２ａ
， ２ｂの嵌合連結手段に決して限定されず、例えば複
数の支持部材を蛇腹を介して連結して屈曲自在にしても
よい。また、環状シール体１２が屈曲回転する具体的な
角度等も問わない。これは使用条件に対応して決定すれ
ばよい。Furthermore, the configuration of the support rod 1 is not limited as described above, and the point is that the annular seal body 12 can be bent and rotated in a lateral direction different from the longitudinal force direction of the support rod 1 at least at one or more locations on the tip side thereof. It suffices if the portion is formed to be bendable. Specific structure of the connecting portion 27 or the bulged spherical portion 2a of the above embodiment
, 2b. For example, a plurality of support members may be connected via bellows to be flexible. Further, the specific angle at which the annular seal body 12 bends and rotates does not matter. This may be determined depending on the conditions of use.
この様に、本発明に係る止水用器具の各部の具体的な構
或は任意に設計変更自在である。In this way, the specific structure or design of each part of the water stop device according to the present invention can be changed as desired.
（止水工法の他の実施例）
１８
本発明は止水工法の具体的な構成も上記実施例の如く限
定されない。(Other Examples of Water Stopping Method) 18 The specific structure of the water stopping method of the present invention is not limited to the above embodiments.
上記実施例では、高圧水を用いて孔２２の穿設作業を行
ったがこれに代えてカッター刃を備えた穿孔具を用いた
穿孔作業を行ってもよく、又該孔２２の形状等は一切特
定されない。In the above embodiment, the holes 22 were drilled using high-pressure water, but instead of this, the holes 22 may be drilled using a drilling tool equipped with a cutter blade, and the shape of the holes 22 may be Nothing is specified.
また、本発明は辻水用器具１６の環状シール体１２を穿
設した孔２２が開口していない管体内部位置に配置させ
た上で、環状シール体１２を拡張させて止水を行えばよ
いものであって、止水用器具１６の具体的な配置位置が
特定されないことは言う迄もないＯ
更に、上記実施例では止水対象管体１７に取付けた補助
管１８を利用して孔２２の穿設作業並びに止水用器具１
６の挿入作業を行わせて、その一連の作業中に管体１７
の外部への不当な漏水を一切生しさせ様にした場合につ
いて説明したが、第１請求項に記載の本発明では必ずし
も係る手段を採用する必要はない。Further, the present invention provides that the annular seal body 12 of the water supply device 16 is placed in a position inside the tube where the drilled hole 22 is not open, and then the annular seal body 12 is expanded to stop water. It goes without saying that the specific placement position of the water-stopping device 16 is not specified.Furthermore, in the above embodiment, the auxiliary pipe 18 attached to the pipe body 17 to be water-stopped is used to close the hole. 22 drilling work and water stop equipment 1
6, and during the series of operations, the tube body 17 is inserted.
Although a case has been described in which no unreasonable leakage of water to the outside is allowed to occur, it is not necessary to employ such means in the present invention as set forth in the first claim.
その他、本発明は各作業工程の具体的な構成に任意に変
更自在である。また、本発明は主として水道管の補修，
分岐配管の追加作業等に利用されるものであるが、係る
用途に限定されず、その他様々な配管の止水作業に適用
できることは言う迄もない。In addition, the present invention can be freely modified in the specific configuration of each work step. In addition, the present invention is mainly used for repairing water pipes,
Although it is used for additional work on branch piping, etc., it goes without saying that it is not limited to such use and can be applied to various other types of water shutoff work on piping.
（発明の効果）
叙上の様に、本発明は環状シール体を支持杆の先端部に
屈曲回転変移可能に設けた止水用器具を止水対象管体の
側壁に穿設した孔から管体内に挿入させて、環状シール
体を前記孔の開口位置から離れた管体内部位置に配置さ
せた上で、環状シール体をその半径方向に拡張させて管
体内周面に圧接させて止水を行うために、従来の止水対
象管体を完全に切断してその先端開口部から止水用器具
を挿入させる手段の如く、該止水用器具を管体の前方で
操作するための大きな作業スペースを必要とせず、地中
に埋設された水道管等をその止水対象とする場合には地
面の掘削面積を大きくとる必要がなく、又止水終了後の
管体修復作業を行う場合にも管体を大掛かりな作業で連
結し直す様な必要性もなく、一連の且水作業並ひに北本
終了後の修復作業の容易化が図れる効果がある。(Effects of the Invention) As described above, the present invention provides a water stop device in which a ring-shaped seal body is provided at the tip of a support rod so that it can be bent and rotated. After the annular seal is inserted into the body and placed at a position inside the tube away from the opening position of the hole, the annular seal is expanded in the radial direction and brought into pressure contact with the inner circumferential surface of the tube to stop water. In order to do this, a large piece of equipment is used to operate the water-stopping device in front of the pipe, such as the conventional method of completely cutting off the water-stopping target pipe and inserting the water-stopping device through the opening at its tip. No work space is required, when water pipes etc. buried underground are to be stopped, there is no need to take a large excavation area of the ground, and when pipe repair work is to be performed after the water has been stopped. In addition, there is no need to reconnect the pipe bodies through large-scale work, and this has the effect of facilitating a series of water works as well as repair work after the completion of the Kitamoto project.
しかも、本発明の環状シール体を孔が穿設されていない
位置で拡張させる手段では、従来の管体側壁の孔から弁
体を挿入させて該孔の鋭利な開口周縁部に弁体のシール
材を圧接させていた手段の如く弁体に不当な損傷を生じ
させることもなく、止水用器具の環状シール体を管体内
周面に的確に圧接させて管体の止水を略完全な状態に行
える効果をも得られる。Furthermore, in the method of expanding the annular seal body of the present invention at a position where no hole is formed, the valve body is inserted through the conventional hole in the side wall of the pipe body, and the seal of the valve body is applied to the sharp opening periphery of the hole. The annular sealing body of the water stop device is accurately pressed against the inner circumferential surface of the tube, without causing undue damage to the valve body unlike the method of press-fitting materials, and almost completely shutting off water in the tube body. You can also obtain effects that can be applied to certain states.
この様に、本発明は一連の作業性を向上させるに限らず
、管体の止水をも確実なものに設定できて、従来の手段
に於いて同時に解消できなかった二つの問題点を一挙に
解決できるに至ったもので、その実用的価値は多大であ
る。In this way, the present invention not only improves a series of work efficiency, but also ensures water stoppage of the pipe body, and solves two problems that could not be solved at the same time with conventional means. The practical value of this solution is enormous.
また、本発明の弁付ケーシングを連設した補助管を管体
の外側面部に傾斜状に装着させた状態で所定の一連の作
業を行う手段に於いては、一連の止水作業作業を行う場
合に弁付ケーシングの外端開口部又は弁の位置での止水
状態を維持させてお２１
４ど（ノ
くことにより、管体内の水流が管体外部に不当に漏水す
ることを適切に防止でき、作業性の一層の向上が図れる
という優れた効果がある。In addition, in the method of carrying out a series of predetermined operations with the auxiliary pipe in which the casing with a valve of the present invention is attached in an inclined manner to the outer surface of the pipe body, a series of water shutoff operations may be carried out. In some cases, by maintaining a water stop state at the outer end opening of the valved casing or at the position of the valve, it is possible to properly prevent the water flow inside the pipe from improperly leaking to the outside of the pipe. This has the excellent effect of preventing this problem and further improving work efficiency.
しかも、補助管を傾斜状態にしたために、止水用器具を
管体内に挿入させる際に管体に対して斜め方向から挿入
できて、環状シール体を孔の非穿設位置まで挿入させる
作業が容易となり、又これによって孔を大面積に穿設す
る必要性も無くなる利点がある。Moreover, since the auxiliary pipe is in an inclined state, when inserting the water stop device into the pipe body, it can be inserted from an oblique direction to the pipe body, making it easier to insert the annular seal body into the hole where it is not drilled. This has the advantage that it is easy to do so, and it also eliminates the need to drill holes over a large area.
更に、本発明の止水用器具の止水用器具を支持杆に対し
て屈曲回転変移自在に形或した手段によれば、止水対象
管体の側壁に穿設された孔から止水用器具を管体内に挿
入させて該孔の非穿設位置に環状シール体を配置させる
作業が適切に行え、本発明に且木工法の実施に寄与し利
便である。Furthermore, according to the means of the water-stopping device of the present invention in which the water-stopping device is shaped so as to be able to bend and rotate freely with respect to the support rod, the water-stopping device can be inserted through the hole drilled in the side wall of the pipe body to be water-stopped. The operation of inserting the instrument into the tube body and arranging the annular seal body in the non-drilling position of the hole can be performed appropriately, which contributes to the present invention and to the implementation of the woodworking method and is convenient.
第１図は本発明に係る止水用器具の一実施例を示し、同
図（イ）は正面断面図、同図（口）は同図（イ）の×一
×線拡大断面図、同図（ハ）は要部平面図。
２２
第２図（イ），（口）．第３図，第４図，第５図，及び
第６図は本発明に係る止水工法の一連の作業工程を示す
要部断面図。
第７図（イ），（口）は止水用器具の他の実施例を示す
要部断面図。
第８図（イ），（口）及び第９図（イ），（口），（ハ
）． （二）は従来例を示す断面図。
１・・・支持杆 １２・・・環状シール体
１６・・・止水用器具 １７・・・止水対象管
体１８・・・補助管 １９・・・弁２２・
・・孔 ２３・・・弁付ケーシング２
５・・・穿孔具 ２６・・・外端開口部２
７． ２７ａ・・・連結部FIG. 1 shows an embodiment of the water-stopping device according to the present invention, in which (A) is a front sectional view, the opening (opening) is an enlarged sectional view along the x1x line in FIG. Figure (c) is a plan view of the main part. 22 Figure 2 (a), (mouth). FIG. 3, FIG. 4, FIG. 5, and FIG. 6 are main part sectional views showing a series of work steps of the water stop method according to the present invention. FIGS. 7(A) and 7(B) are sectional views of main parts showing other embodiments of the water stopping device. Figure 8 (a), (mouth) and Figure 9 (a), (mouth), (c). (2) is a sectional view showing a conventional example. 1... Support rod 12... Annular seal body 16... Water stop device 17... Water stop target pipe body 18... Auxiliary pipe 19... Valve 22.
... Hole 23 ... Casing with valve 2
5... Punching tool 26... Outer end opening 2
7. 27a...Connection part
Claims (1)
半径方向に拡縮変形自在な環状シール体１２が支持杆１
の先端部に該支持杆１の長手方向と相違する横方向に屈
曲回転変移可能に設けられた止水用器具１６を、前記孔
２２から管体１７内に挿入させて、該止水用器具１６の
環状シール体１２を前記孔２２の開口位置から離れて該
孔２２が穿設されていない管体内部位置に配置させ、そ
の後該止水用器具１６の環状シール体１２をその半径方
向に拡張させて管体１７の内周面に圧接させることによ
り該管体１７内の止水を行うことを特徴とする水道配管
等の管体の止水工法。 ２ 特許請求の範囲第１項記載の水道配管等の管体の止
水工法に於いて、孔２２の穿設作業を行う以前に、止水
用の弁１９を備えた弁付ケーシング２３を連設してなる
補助管１８を予め管体１７の外側面部に該管体１７に対
して傾斜状態で装着させて、管体１７の側壁への孔２２
の穿設作業を弁付ケーシング２３及び補助管１８内に挿
入した穿孔具２５で行い、且つ管体１７内への止水用器
具１６の挿入作業を前記弁付ケーシング２３及び補助管
１８内に止水用器具１６を挿入させて行うことを特徴と
する水道配管等の管体の止水工法。 ３ 止水対象管体１７内に挿入されて該管体１７内の流
水路を閉塞するための拡縮変形自在な環状シール体１２
が支持杆１の先端側に設けられてなる水道配管等の管体
の止水用器具に於いて、前記支持杆１は、環状シール体
１２を支持杆１の長手方向と相違する横方向に屈曲回転
変移可能とすべく少なくともその先端側の一箇所以上の
部位が屈曲自在に形成されてなることを特徴とする水道
配管等の管体の止水用器具。[Claims] 1. After drilling a hole 22 in the side wall of the pipe body 17 to be water stopped,
An annular seal body 12 that can expand and contract in the radial direction is attached to the support rod 1.
A water-stopping device 16, which is provided at the distal end of the support rod 1 so as to be bendable and rotationally movable in a lateral direction different from the longitudinal direction of the support rod 1, is inserted into the pipe body 17 through the hole 22. 16 annular seal bodies 12 are placed away from the opening position of the hole 22 to a position inside the tube where the hole 22 is not bored, and then the annular seal body 12 of the water stop device 16 is moved in the radial direction. A water stop construction method for pipe bodies such as water pipes, characterized in that water is stopped within the pipe body 17 by expanding it and bringing it into pressure contact with the inner circumferential surface of the pipe body 17. 2. In the water shutoff construction method for pipe bodies such as water pipes described in claim 1, before drilling the hole 22, a valved casing 23 equipped with a water shutoff valve 19 is connected. The auxiliary pipe 18 is installed in advance on the outer surface of the tube body 17 in an inclined state with respect to the tube body 17, and the hole 22 in the side wall of the tube body 17 is inserted.
The drilling work is performed using the drilling tool 25 inserted into the casing 23 with a valve and the auxiliary pipe 18, and the work of inserting the water stop device 16 into the pipe body 17 is performed into the casing 23 with a valve and the auxiliary pipe 18. A water-stopping method for pipe bodies such as water pipes, which is performed by inserting a water-stopping device 16. 3 An annular seal body 12 that can be expanded and contracted to be inserted into the pipe body 17 to be water-stopped to block the flow channel within the pipe body 17
In a water stop device for a pipe body such as a water pipe, in which a support rod 1 is provided at the distal end side of the support rod 1, the support rod 1 has an annular seal body 12 in a lateral direction different from the longitudinal direction of the support rod 1. A water stop device for a pipe body such as a water pipe, characterized in that at least one or more portions on the distal end thereof are formed to be bendable so as to be able to bend and rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1187909A JPH0351599A (en) | 1989-07-19 | 1989-07-19 | Water stop construction for pipe body such as water supply pipe and water stopping fitting used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1187909A JPH0351599A (en) | 1989-07-19 | 1989-07-19 | Water stop construction for pipe body such as water supply pipe and water stopping fitting used therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351599A true JPH0351599A (en) | 1991-03-05 |
Family
ID=16214329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1187909A Pending JPH0351599A (en) | 1989-07-19 | 1989-07-19 | Water stop construction for pipe body such as water supply pipe and water stopping fitting used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351599A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170527A (en) * | 2005-12-21 | 2007-07-05 | Cosmo Koki Co Ltd | Method of mounting/demounting pipe connection member |
| JP2010533829A (en) * | 2007-07-16 | 2010-10-28 | ゲ ミョン エンジニアリング シーオー エルティディ | Fluid flow blocking device inside piping and bypass forming system using the same |
| JP2017075685A (en) * | 2015-10-16 | 2017-04-20 | 大喜工業株式会社 | Water cutoff method and water cutoff tool set |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5524591B2 (en) * | 1975-04-16 | 1980-06-30 | ||
| JPS6317393B2 (en) * | 1983-09-30 | 1988-04-13 | Nippon Denki Hoomu Erekutoronikusu Kk | |
| JPS6483995A (en) * | 1987-09-26 | 1989-03-29 | Osaka Gas Co Ltd | Bag for interrupting fluid condit |
-
1989
- 1989-07-19 JP JP1187909A patent/JPH0351599A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5524591B2 (en) * | 1975-04-16 | 1980-06-30 | ||
| JPS6317393B2 (en) * | 1983-09-30 | 1988-04-13 | Nippon Denki Hoomu Erekutoronikusu Kk | |
| JPS6483995A (en) * | 1987-09-26 | 1989-03-29 | Osaka Gas Co Ltd | Bag for interrupting fluid condit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170527A (en) * | 2005-12-21 | 2007-07-05 | Cosmo Koki Co Ltd | Method of mounting/demounting pipe connection member |
| JP2010533829A (en) * | 2007-07-16 | 2010-10-28 | ゲ ミョン エンジニアリング シーオー エルティディ | Fluid flow blocking device inside piping and bypass forming system using the same |
| JP4754034B2 (en) * | 2007-07-16 | 2011-08-24 | ゲ ミョン エンジニアリング シーオー エルティディ | Fluid flow blocking device inside piping |
| JP2017075685A (en) * | 2015-10-16 | 2017-04-20 | 大喜工業株式会社 | Water cutoff method and water cutoff tool set |
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