JPH02309081A - Device for partially repairing bent pipeline from inner face - Google Patents
Device for partially repairing bent pipeline from inner faceInfo
- Publication number
- JPH02309081A JPH02309081A JP1128460A JP12846089A JPH02309081A JP H02309081 A JPH02309081 A JP H02309081A JP 1128460 A JP1128460 A JP 1128460A JP 12846089 A JP12846089 A JP 12846089A JP H02309081 A JPH02309081 A JP H02309081A
- Authority
- JP
- Japan
- Prior art keywords
- protector
- repair
- end member
- rear end
- repair tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008439 repair process Effects 0.000 claims abstract description 99
- 230000001012 protector Effects 0.000 claims abstract description 44
- 210000000078 claw Anatomy 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 26
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 21
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002775 capsule Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000003677 Sheet moulding compound Substances 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は地中に埋設されたガス導管、水道管或いはその
他の曲管を含む管路をその内面から部分的に補修する装
置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for partially repairing underground pipes, including gas pipes, water pipes, and other curved pipes, from the inside thereof. be.
ガス導管等において、その一部に腐食が発生したり、漏
洩原因等が発生した場合の補修装置として、既設管ジヨ
イント部の補修装置（実開昭６Ｏ−１４２３８９）が公
知である。2. Description of the Related Art A repair device for an existing pipe joint (Japanese Utility Model Application Laid-Open No. 6O-142389) is known as a repair device for repairing a gas pipe or the like when corrosion occurs in a part thereof or a cause of leakage occurs.
この公知例は第１３図に示すように装置本体１００の外
周に、カプセル１０１，１０２を外装し、該カプセル１
０１，１０２は、本体１００内に形成されたシリンダー
室１０６．１０７とカプセル１０１．１０２の外端より
内方に向けて延出されたピストンロッド１０８．１０９
の内端に形成されたピストン１１０．１１１によって前
後方向に開閉自在に構成されており、該カプセル１０１
゜１０２内にシーリング材１０３を保持し、流体圧によ
って膨張、収縮可能な保持体１０４とから構成され、こ
の補修装置はカプセル１０１，１０２を閉じてシーリン
グ材１（１３を保護しながら管路内に挿入され、補修箇
所においてシリンダー室１０６．１０７内に流体を供給
してカプセル１０１．１０２を開き、保持体１０４を膨
張させてシーリング材１０３を管路の内面に密着させる
構成である。In this known example, as shown in FIG.
01 and 102 are cylinder chambers 106 and 107 formed within the main body 100 and piston rods 108 and 109 extending inward from the outer ends of the capsules 101 and 102.
Capsule 101
102, and a holder 104 that can be expanded and contracted by fluid pressure. The structure is such that fluid is supplied into the cylinder chambers 106, 107 at the repair location to open the capsules 101, 102, expand the holder 104, and bring the sealing material 103 into close contact with the inner surface of the conduit.
しかし、この公知例においてはカプセル１０１ 、１０
２の開閉にシリンダー室１０６．１０７及びピストン１
１０．１１１をもちいているため、本体１００自身金属
等剛性のある材質で構成しなければならなく、補修管路
内に曲管が含まれている場合、本体１００は湾曲するこ
とができない為、曲管部分を経由しての挿通は不可能で
ある。また、曲管部分を通過させる為に本体１００の筒
長方向の長さを短くした場合には、当然使用するシーリ
ング材１０３の筒長方向の長さも短くなり、よって補修
長が短くなって十分な補修ができなくなってしまう。However, in this known example, the capsules 101, 10
Cylinder chamber 106,107 and piston 1 for opening and closing of 2
10.111, the main body 100 itself must be made of a rigid material such as metal, and if a bent pipe is included in the repair pipeline, the main body 100 cannot be bent. Insertion through the bent pipe section is not possible. In addition, when the length of the main body 100 in the cylinder length direction is shortened in order to pass through the curved pipe portion, the length of the sealing material 103 used in the cylinder length direction is also shortened, and therefore the repair length is shortened and is sufficient. Repairs may no longer be possible.
本発明は以上の点に海みてなされるものであって、その
目的は管路をその内面から部分補修する装置において、
管長方向の長さを十分に確保しながら曲管部分をスムー
ズに挿通可能に構成した補修装置を提案することである
。The present invention has been made in view of the above points, and its object is to provide an apparatus for partially repairing a pipe from its inner surface.
It is an object of the present invention to propose a repair device configured to allow smooth insertion through a curved pipe portion while ensuring a sufficient length in the longitudinal direction of the pipe.
本発明は上記目的を達成する手段として、次の如き構成
の曲がり部を含む管路をその内面から部分補修する装置
を提案する。As a means for achieving the above object, the present invention proposes an apparatus for partially repairing a pipe line including a bent portion having the following configuration from its inner surface.
気密性と保形性を有する可撓管の前端には前端部材を、
後端には後端部材を取り付けると共に前記可撓管の外側
に気密空間を置いて同心に膨張膜を配し、この膨張膜の
両端を前記前端部材と後端部材に夫々固定して前記気密
空間内には外部から流体を圧入したり排除したりするた
めの流体流入孔を開孔すると共に前記膨張膜には発熱手
段を構成して成る補修具本体と、
前記補修具本体を前端部材側から内部に同心的にそして
、先端部材側をフリーに挿入することができる可撓性を
有し、かつ所要の箇所に移動用の車輪を取り付けて成る
鞘状の保護体と、前記保護体の挿入口と前記補修具本体
の後端部材間を結合したり、遠隔操作によりこの結合関
係を解除したりするための固定手段と、
補修具本体の後端部材の外周から遠隔操作により放射状
に突出する固定脚と、
から成る曲がりを含む管路をその内面から部分補修する
装置。A front end member is attached to the front end of the flexible tube that has airtightness and shape retention.
A rear end member is attached to the rear end, an airtight space is placed outside the flexible tube, and an inflatable membrane is arranged concentrically, and both ends of the inflatable membrane are fixed to the front end member and the rear end member respectively to form the airtight space. The space has a fluid inlet hole for pressurizing fluid from the outside and expelling it, and the expansion membrane has a repair tool main body that constitutes a heat generating means, and the repair tool main body is placed on the front end member side. A sheath-like protector having flexibility that allows the distal end member to be inserted concentrically and freely into the interior of the protector, and having wheels for movement attached at required locations; a fixing means for coupling the insertion port and the rear end member of the repair tool main body, and for releasing this coupling relationship by remote control; A device for partially repairing a conduit including a bend from its inner surface, consisting of a fixed leg that is fixed to the side, and a bent pipe.
上記装置において、補修具本体は保護体内に組み込まれ
た状態で管路内の所定の位置まで挿入され、所定の位置
において保護体内から抜き出されることが必要である。In the above device, it is necessary that the repair tool main body is inserted into the conduit to a predetermined position while being incorporated into the protector, and then extracted from the protector at the predetermined position.
このためには補修具本体と保護体とを管路内においてそ
の結合関係を遠隔操作で切り離すことが必要となる。こ
の手段としては保護体の挿入口側の外に係合部を形成し
、補修具本体側の後端部材の外に遠隔操作で前記係合部
に係合していた爪が解除される係合爪を設けてお（こと
が考えられる。この係合爪は例えば流体圧で作動して解
除されるようにしてもよいし、電気的な磁界の形成手段
で解除されるようにしてもよい。For this purpose, it is necessary to separate the connection between the repair tool main body and the protector within the conduit by remote control. As a means for this, an engaging part is formed outside the insertion opening side of the protector, and an engaging part is formed outside the rear end member on the repair tool main body side, and the claw that has been engaged with the engaging part is released by remote control. It is conceivable that a mating pawl is provided. This mating pawl may be actuated and released by fluid pressure, for example, or may be released by electric magnetic field forming means. .
保護体は管路内をスムーズに移動（走行）することが必
要である。このためには保護体の外側に移動用の車輪を
前後２ケ所以上に亘って取り付ける必要がある。又、保
護体が回転しても支障がないように車輪は円周方向に少
なくとも３ケ所以上取り付けることが必要である。次に
、膨張膜は、流体圧がかけられたとき、均一に膨張する
必要があり、このためにその外形は円筒状である。又、
膨張膜はそれ自体が通電により発熱する素材で作られて
いてもよいし、内外の何れかに発熱層を構成したもので
もよい。The protector needs to move (run) smoothly within the pipe. For this purpose, it is necessary to attach moving wheels to the outside of the protector at two or more locations, front and rear. Further, it is necessary to attach the wheels at at least three locations in the circumferential direction so that there is no problem even when the protector rotates. Second, the inflatable membrane must inflate uniformly when fluid pressure is applied, and for this reason its outer shape is cylindrical. or,
The inflatable membrane itself may be made of a material that generates heat when energized, or may have a heat generating layer either inside or outside.
〔作用］
本発明の装置は管路内を移動するさい牽引ワイヤーによ
って保護体が牽引される形になる。これに対して、補修
具本体はその胴体部が保護体内に収容されている。そし
て補修具本体の後端部と保護体の後端は固定手段で固定
されている（着脱可能に）。[Function] In the device of the present invention, the protector is pulled by a pulling wire when moving inside the pipe. On the other hand, the main body of the repair tool is housed within the protective body. The rear end of the repair tool body and the rear end of the protector are fixed (removably) by a fixing means.
従って、保護体を牽引すると、補修具本体も追動する。Therefore, when the protector is towed, the repair tool body also follows.
このさい、保護体の胴体部は、牽引にともなって、ある
程度伸張・収縮いづれの状態もとりうるようになってい
る。At this time, the body portion of the protector is designed to be able to expand or contract to some extent as it is towed.
そして本発明の装置が曲管部を移動するさい、牽引ワイ
ヤーによって保護体前端部の方向転換が生ぜしめられる
。この時保護体の胴体部は、その背で伸び、その腹で縮
み、保護体全体が円曲して方向転換を容易にする。When the device according to the invention moves through the bend, the pulling wire causes the front end of the protector to change direction. At this time, the body of the protector stretches at its back and contracts at its abdomen, making the entire protector curved to facilitate direction changes.
尚、保護体は、その後端のみで補修具本体の後端部と着
脱可能に固定され、先端部側はフリーすなわちスライド
可能になっている。The protector is removably fixed to the rear end of the repair tool body only at its rear end, and is free, ie, slidable, at its distal end.
従って、保護体の曲がりを、補修具本体の胴体部がじゃ
ますることがない。このため、曲管部において、保護体
の曲がりがスムーズに行われる。Therefore, the body portion of the repair tool body does not interfere with the bending of the protector. Therefore, the protective body can be smoothly bent in the bent pipe portion.
又、補修具本体の胴体部には、膨張膜が張られているた
め、先のスライドしない構造であれば、膨張膜の背も張
られることになり、保護体の曲がりをじゃますることに
なるが本発明の装置ではこれも防げる。Also, since the body of the repair tool is covered with an inflatable membrane, if the tip does not slide, the back of the inflatable membrane will also be stretched, which will interfere with the bending of the protector. However, this can also be prevented with the device of the present invention.
さらに、保護体の胴体部と、補修具本体の胴体部をくら
べた場合、補修具本体の方は気密を必要として、曲がり
にくいことが理解される。Furthermore, when comparing the body part of the protector and the body part of the repair tool main body, it is understood that the repair tool main body requires airtightness and is difficult to bend.
保護体は転勤しやすくしておくと尚、効果的である。そ
の場合、車輪で保護体を管の中心に保持しておくと尚良
い。It is even more effective to make the protector easy to transfer. In that case, it is better to use wheels to hold the protector in the center of the tube.
以下具体的な作用について説明する。The specific effects will be explained below.
先ず、補修装置には、あらかじめ膨張膜外周にシートモ
ールディングコンパウンド等で構成したシート状の補修
材を装着しておき、補修具本体に保護体を外装して固定
した状態で、管路内に挿入される。補修装置は牽引手段
、例えばワイヤーで管路内を移動可能である。First, a sheet-shaped repair material made of sheet molding compound or the like is attached to the outer periphery of the inflatable membrane in advance on the repair device, and the repair device is inserted into the pipe with a protective body attached to the exterior and fixed. be done. The repair device can be moved within the conduit by means of traction, for example a wire.
補修管路両端間にはあらかじめワイヤー等を通線してお
き、補修装置の牽引手段と接続したのち、補修装置の前
端部から管路内に挿入し、通線用ワイヤーをウィンチ等
の引取手段で引くことにより補修箇所まで移動させる。A wire or the like is run between both ends of the repair pipe in advance, and after connecting it to the traction means of the repair equipment, it is inserted into the pipe from the front end of the repair equipment, and the wire is passed through a pulling means such as a winch. Move it to the repair area by pulling it.
補修箇所は予めその位置が検索されており、このデータ
に基づいて補修装置は管路を移動する。The location of the repair location has been searched in advance, and the repair device moves along the pipeline based on this data.
補修装置が補修箇所の位置に定まると、先ず補修具本体
のシリンダー内に流体が圧入され、固定手段が管路内面
に密着し、補修装置を管路の中心に合わせる。同時に、
保護体の係合部から係合爪が外れる。When the repair device is located at the location to be repaired, fluid is first injected into the cylinder of the repair tool body, the fixing means is brought into close contact with the inner surface of the pipe, and the repair device is aligned with the center of the pipe. at the same time,
The engagement claw comes off from the engagement part of the protector.
次いで、保護体と補修具本体を夫々反対方向に引き、補
修具本体を止るまで引き抜く。そして、気密空間内に操
作流体を圧入し、膨張膜及びこの外に巻きつけたシート
状の補修材をラップした部分においてスライドさせて拡
径し、補修箇所に補修材を密着させる。次に給電装置か
ら通電発熱ゴムで構成された膨張膜に通電して、この膨
張膜を発熱させ、補修材を硬化させる。Next, the protector and the repair tool main body are pulled in opposite directions, and the repair tool main body is pulled out until it stops. Then, an operating fluid is pressurized into the airtight space, and the expanded membrane and the sheet-shaped repair material wound around the outside are slid to expand the diameter of the wrapped portion, thereby bringing the repair material into close contact with the repaired area. Next, electricity is applied from the power supply device to the expansion membrane made of energized heat-generating rubber, causing the expansion membrane to generate heat and hardening the repair material.
補修材が硬化したならば、給電装置からの通電を止め、
気密空間内から操作流体を排除して膨張膜を収径させる
。その後、牽引手段をその後退方向に、補修具本体に保
護体が作業前の状態になるまで引き取り、次にシリンダ
ー内から流体を排除して、管路内面から固定手段を離脱
させ、固定手段の先端部の固定部が保護体を固定した後
、補修装置を管外に引き出して作業を終える。Once the repair material has hardened, turn off the power from the power supply device,
The operating fluid is removed from the airtight space and the diameter of the expansion membrane is reduced. After that, the traction means is pulled in its backward direction until the protector is in the state before work is carried out on the main body of the repair tool, then the fluid is removed from the cylinder, the fixing means is detached from the inner surface of the pipe, and the fixing means is removed. After the fixing part at the tip fixes the protector, the repair device is pulled out of the tube to finish the work.
第１図は本発明に係る補修装置を管路内の補修箇所まで
挿入した状態を示すもので、符号の１は前端部材にして
、この前端部材ｌは気密性と保形性を有する可撓管１３
の前端に嵌合されている。１′は前記可撓管１３の後端
に嵌合されている後端部材、２は前端部材１内に設けた
貫通孔にして、この貫通孔２は可撓管１３内から後端部
材１′の貫通孔２′、流出孔２＃、２＃と続いている。Fig. 1 shows the state in which the repair device according to the present invention has been inserted into a repair point in a pipe, and the reference numeral 1 is a front end member, and this front end member 1 is a flexible member having airtightness and shape retention. tube 13
is fitted to the front end of the 1' is a rear end member fitted to the rear end of the flexible tube 13; 2 is a through hole provided in the front end member 1; ' through hole 2', outflow holes 2#, and 2#.
３は後端部材１′の外周において等間隔で３ケ所に設け
られた固定手段５のシリンダーにして、このシリンダー
３内にはピストン４が組み込まれ、このピストン４には
前端にフック７を形成した係合爪６が取り付けられてい
る。８は固定手段５が出入りするときのガイド、９はピ
ストンリング、１０はピストン４（係合爪６）が後端部
材１′において中心方向に収縮するように力を状勢して
いるスプリング、１１はシリンダー３内に流体圧を供給
するための流体圧供給孔、１２は図示しない流体圧源か
ら流体をシリンダー３内に供給したり、これから排除す
るための流体圧導入管である。Reference numeral 3 denotes cylinders for fixing means 5 provided at three equally spaced locations on the outer periphery of the rear end member 1', a piston 4 is incorporated within this cylinder 3, and a hook 7 is formed on the front end of this piston 4. An engaging pawl 6 is attached. 8 is a guide when the fixing means 5 moves in and out, 9 is a piston ring, 10 is a spring that applies force so that the piston 4 (engaging claw 6) contracts in the center direction in the rear end member 1', 11 Reference numeral 12 designates a fluid pressure supply hole for supplying fluid pressure into the cylinder 3, and 12 a fluid pressure introduction pipe for supplying fluid into or removing fluid from the cylinder 3 from a fluid pressure source (not shown).
１４は前記可撓管１３の外側において、可撓管１３との
間に気密空間１４′を置いて前端部材１と後端部材１′
間に固定された発熱ゴム製の膨張膜、１５．１５′は膨
張膜１４を固定すると共に膨張膜１４に通電を行うため
の電極、１６は前記気密空間１４′内に開孔した流体圧
流入孔、１７は流体圧供給管、１８．１８′は通電綿１
９．１９′を通す通電孔、２０．２０′は通電孔１８．
１８′を埋めるシーリング材にして、以上の符号１〜２
０．２０′までが補修具本体である。14 is located outside the flexible tube 13, with an airtight space 14' between the front end member 1 and the rear end member 1'.
An inflatable membrane made of heat-generating rubber is fixed in between, 15 and 15' are electrodes for fixing the inflatable membrane 14 and energizing the inflatable membrane 14, and 16 is a fluid pressure inflow hole opened in the airtight space 14'. Hole, 17 is fluid pressure supply pipe, 18.18' is energized cotton 1
9.19' is the current carrying hole, 20.20' is the current carrying hole 18.
Use sealant to fill in 18' and apply the above codes 1 to 2.
The area up to 0.20' is the main body of the repair tool.
２１は外周に移動用の車輪２３を車軸２４により取り付
けると共に正面側に流入孔２２．２２′を設けて成る先
導部材、２１′は後導部材にして車軸２４により車輪２
３が取り付けられており、この先導部材２１と後導部材
２１′間には伸縮自在のフレキシブル管２５．２５′が
取り付けられており、全体的には鞘状である。２１＃は
前記フレキシブル管２５．２５′を中間で結合している
中間部材にして、この中間部材２１″の外周にも車軸２
４により車輪２３が取り付けられている。Reference numeral 21 denotes a leading member having wheels 23 for movement attached to the outer periphery by an axle 24 and inlet holes 22, 22' provided on the front side; 21' is a trailing member;
3 is attached, and a telescopic flexible tube 25, 25' is attached between the leading member 21 and the trailing member 21', and has a sheath shape as a whole. 21# is an intermediate member that connects the flexible tubes 25 and 25' in the middle, and the axle 2 is also connected to the outer periphery of this intermediate member 21''.
Wheels 23 are attached by 4.
２６は後導部材２１′の挿入孔２１′″の外周に形成さ
れた係合部にして、前記係合爪６のフック７がこの係合
部２６に係合自在である。Reference numeral 26 denotes an engaging portion formed on the outer periphery of the insertion hole 21'' of the trailing member 21', and the hook 7 of the engaging pawl 6 can freely engage with this engaging portion 26.
２７は補修具本体内に挿通すると共に固定環２８により
先導部材２１に固定され、固定環２８′により後端部材
１′に内側でのみ係合して固定されるようにした牽引ワ
イヤーである。Reference numeral 27 denotes a pulling wire which is inserted into the main body of the repair tool and is fixed to the leading member 21 by a fixing ring 28, and is fixed by engaging only the inner side of the rear end member 1' by a fixing ring 28'.
第１図中２９は管路、３０は接続口、４１は前端部材１
の外周に形成したリブ、４２は後導部材２１′内に形成
した前記リブ４１が内側から係合するストッパーにして
、符号の２１〜４２（但し２９と３０を除く）が保護体
である。In Fig. 1, 29 is a conduit, 30 is a connection port, and 41 is a front end member 1.
A rib 42 formed on the outer periphery of the rear guide member 21' is a stopper with which the rib 41 formed in the trailing member 21' engages from the inside, and numerals 21 to 42 (excluding 29 and 30) are protectors.
次に上記装置を使用しての作業例を第６図に基づいて説
明する。先ず、補修箇所を含む管路の両側において、作
業溝３１．３２を掘削し、この中に管路２９を露出させ
て挿入側は作業溝３１において管路２９を切断し、他方
の作業溝３２の露出した部分には牽引ワイヤー２７の引
き出し孔３７を穿孔し、この引き出し孔３７にはワイヤ
ーガイド３８を取り付ける。Next, an example of work using the above device will be explained based on FIG. 6. First, work grooves 31 and 32 are excavated on both sides of the conduit including the repair area, and the conduit 29 is exposed therein, and the conduit 29 is cut at the work groove 31 on the insertion side, and the work groove 32 on the other side is excavated. A pull-out hole 37 for the pulling wire 27 is bored in the exposed portion of the pull-out wire 27, and a wire guide 38 is attached to the pull-out hole 37.
挿入側の切断間にはバイパス３２を取り付けて流れを確
保し、切断口３３．３３′には閉塞蓋３４．３４′を取
り付ける。なお、閉塞蓋３４にはワイヤー２７の挿入孔
３５が開孔されており、その上部にはワイヤーガイド３
６が取り付けられている。A bypass 32 is installed between the cuts on the insertion side to ensure flow, and a closing lid 34, 34' is installed at the cutting opening 33, 33'. Note that the closing lid 34 has an insertion hole 35 for the wire 27, and a wire guide 3 is provided in the upper part of the insertion hole 35.
6 is installed.
補修装置は、先ず保護体内から補修具本体をリブ４１が
ストッパー４２に当たるまで引き出し、膨張膜１４の外
に補修材ａを端の一部をラップさせて巻きつけて止め、
次に補修具本体を保護体内に挿入し、シリンダー３内か
ら流体を抜いてスプリング１０の力で係合爪６を収縮さ
せ、フック７を保護体側の係合部２６に引掛けて外れな
いようになる。このようにしてから補修装置は切断口３
３から管路２９内の補修箇所まで牽引ワイヤー２７を利
用して引き入れる。The repair device first pulls out the repair tool main body from the protector until the rib 41 hits the stopper 42, wraps a part of the end of the repair material a outside the inflatable membrane 14, and fixes it.
Next, insert the repair tool body into the protector, remove the fluid from the cylinder 3, contract the engagement claw 6 with the force of the spring 10, and hook the hook 7 on the engagement part 26 on the protector side to prevent it from coming off. become. After doing this, the repair device
3 to the repair point in the conduit 29 using the traction wire 27.
第１図は本発明に係る補修装置が補修箇所まで引き入れ
られた状況を示している。FIG. 1 shows a situation in which the repair device according to the present invention has been brought into the repair area.
補修装置が補修箇所まで挿入されたことを確認したなら
、補修装置を停止し、流体圧導入管１２から流体圧供給
孔１１を介してシリンダー３内に流体を供給してピスト
ン４をスプリング１０に抗して外側に作動させる。係合
爪６はこの作動により半径方向に伸長し、フック７が係
合部２６から外れると共に係合爪６はやがて管路２９の
内面に突き当って止る。この結果、後端部材１′は管路
２９内に固定される。この状況は第８．９図に示されて
いる。After confirming that the repair device has been inserted to the repair point, stop the repair device, and supply fluid from the fluid pressure introduction pipe 12 to the cylinder 3 through the fluid pressure supply hole 11 to move the piston 4 into the spring 10. Operate outward against resistance. The engaging pawl 6 expands in the radial direction due to this operation, and as the hook 7 is removed from the engaging portion 26, the engaging pawl 6 eventually abuts against the inner surface of the conduit 29 and stops. As a result, the rear end member 1' is fixed within the conduit 29. This situation is illustrated in Figure 8.9.
次に引き出し孔３７側において牽引ワイヤー２７を引く
と、補修具本体側は前記のとおり固定されているので、
保護体側のみが引かれ、やがてリブ４１がストッパー４
２に当って保護体は止る。この結果、補修材ａが露出す
る。この状況は第１０図に示されており、このようにし
て補修材ａが露出したなら、次に流体圧供給管１７から
気密空間１４′内に流体を供給して膨張膜１４を半径方
向に膨張させると共に補修材ａを解き、やがて補修材ａ
を管路２９の内面に密着させる。この状況は第１１図に
示されている。Next, when pulling the traction wire 27 on the draw-out hole 37 side, the repair tool body side is fixed as described above, so
Only the protector side is pulled, and eventually the rib 41 reaches the stopper 4.
2, the protection body stops. As a result, the repair material a is exposed. This situation is shown in FIG. 10, and once the repair material a has been exposed in this way, fluid is then supplied from the fluid pressure supply pipe 17 into the airtight space 14' to cause the expansion membrane 14 to move in the radial direction. As it expands, repair material a is loosened, and eventually repair material a
is brought into close contact with the inner surface of the conduit 29. This situation is illustrated in FIG.
次に、この密着状態を維持しながら膨張膜１４に通電線
１９．１９′から電極１５．１５′を通じて給電して発
熱させ、補修材ａを硬化させ、この硬化が終了したなら
給電を止め、気密空間１４′内から流体を抜き、膨張膜
１４を元の太さまで収縮させ、次に牽引ワイヤー２７を
挿入孔３５において引き、保護体を補修具本体に被せ、
次にシリンダー３内から流体を抜き、スプリング１００
力で係合爪６を中心方間に収縮させ、フック７を保護体
側の係合部２６に係合し、一体化したのち、牽引ワイヤ
ー２７を挿入側に引いて補修装置を回収する。Next, while maintaining this close contact state, power is supplied to the expansion film 14 from the current-carrying wire 19, 19' through the electrode 15, 15' to generate heat to harden the repair material a, and when this hardening is completed, the power supply is stopped, The fluid is removed from the airtight space 14', the inflatable membrane 14 is contracted to its original thickness, the traction wire 27 is pulled through the insertion hole 35, and the protector is placed over the repair tool body.
Next, drain the fluid from inside the cylinder 3 and remove the spring 100.
After the engaging claw 6 is retracted toward the center by force, the hook 7 is engaged with the engaging portion 26 on the protector side and integrated, the pulling wire 27 is pulled toward the insertion side to recover the repair device.
以上は補修装置の使用例であるが、このようにして補修
装置を管路２９内に挿入したり、回収するときに、曲が
り部があると、保護体はフレキシブル管２５．２５′で
できており、更に補修具本体側も可撓管１３でできてい
るため、第７図に示すように管路２９に沿って円曲しな
がら管路２９内を移動する。The above is an example of how the repair device is used, and if there is a bend when inserting or recovering the repair device into the pipe line 29, the protector is made of the flexible pipe 25, 25'. Furthermore, since the main body of the repair tool is also made of the flexible tube 13, it moves within the conduit 29 while making a circular curve along the conduit 29, as shown in FIG.
特に、保護体内において、補修具本体の先端側はフリー
のため、円曲したときにこのフリー側が曲率の違いによ
りスライドして円曲を助ける。In particular, inside the protector, the distal end side of the repair tool main body is free, so when it is curved, this free side slides due to the difference in curvature, helping the tool to curve.
本発明は、以上のように、補修具本体と保護体が、前端
側においては固定されておらず、後端側のみが固定され
たフレキシブルな二重管構成となっていることから、次
のような効果がある。As described above, the present invention has a flexible double-tube structure in which the repair tool main body and the protector are not fixed at the front end side and are fixed only at the rear end side. There is a similar effect.
１、補修具本体と保護体は筒長方向に互いに違う伸びを
示すことができ、曲管部を通過しやすい。一般に言われ
る。９０’ベンド管、ターンピース管の通過も可能であ
る。1. The repair tool main body and the protector can exhibit different elongations in the longitudinal direction of the tube, making it easier to pass through the curved pipe section. generally said. It is also possible to pass through 90' bend pipes and turn piece pipes.
２、補修装置はその胴体部においてフレキシブルなので
、十分補修長を長くすることが可能である。2. Since the repair device is flexible in its body, it is possible to make the repair length sufficiently long.
３、同様に、曲管途中での補修作業も可能である。3. Similarly, repair work in the middle of a bent pipe is also possible.
また、膨張膜が通電、発熱ゴムにより構成するとき、次
のような効果を期待できる。Furthermore, when the expansion membrane is made of electrically conductive, heat-generating rubber, the following effects can be expected.
４、膨張膜が、曲管通過の場合のように曲げられても、
ヒーターコードの様に断線の恐れがない。4. Even if the inflatable membrane is bent as in the case of passing through a curved pipe,
There is no risk of disconnection like with heater cords.
５、通電により発熱するので、直接補修材を加熱でき、
補修箇所と管路挿入口との距離に関係なく、補修材を迅
速に軟化できる。5. Generates heat when energized, so you can directly heat the repair material.
Repair material can be quickly softened regardless of the distance between the repair location and the pipe insertion port.
さらに膨張膜を膨張させて、管内面に補修材を密着させ
るので、補修装置は管路内径より小さく設計でき、また
保護体に車輪部を構成していることから、
６、管路内面に突起物、例えばスピゴット用のボルトが
形成されていても管路内面を通過できる。Furthermore, since the expansion membrane is expanded to bring the repair material into close contact with the inner surface of the pipe, the repair device can be designed to be smaller than the inner diameter of the pipe, and since the protective body has a wheel portion, 6. There are no protrusions on the inner surface of the pipe. Even if objects, such as bolts for spigots, are formed, they can pass through the inner surface of the pipe.
７、また突起物が補修箇所と重なっても、膨張膜の膨張
により、補修材を管路内面に密着することができる。7. Even if the protrusion overlaps the repaired area, the repair material can be brought into close contact with the inner surface of the pipe due to the expansion of the expansion membrane.
８、次に補修装置を中空に構成したため（貫通孔を設け
たため）活管で補修作業を行うことができる。8. Next, since the repair device is constructed in a hollow manner (by providing a through hole), repair work can be performed using a live pipe.
第１図は本発明に係る補修装置の縦断面図、第２図は第
１図ａ−ａ’線断面図、第３図は第１図ｂ−ｂ’線断面
図、第４図は第３図ｃ−ｃ’線断面図、第５図は第３図
ｄ−ｄ’線断面図、第６図は既設管路において補修作業
を行うために作業穴を掘削した状況の説明図、第７図は
補修装置の曲管通過時の縦断面図、第８図は補修装置の
固定治具を管路内面に密着させた状況の縦断面図、第９
図は第８図ｅ−ｅ’線断面図、第１０図は補修具本体か
ら装置保護体を移動させた状況の縦断面図、第１１図は
膨張膜を膨張させ、補修材を拡径し、管路内面に密着さ
せた状況の縦断面図、第１２図は補修終了状況を示す補
修箇所の縦断面図、第１３図は公知例の説明図である。
１・・・・・・・先端部材 １′・・・・・・・後
端部材３ ・・・・・シリンダー ４・・・・・・
−・・ピストン５ ・・−・固定手段 ６・・・−
・・・−係合爪７・・・・−・フック ｌＯ−・
−・・・−・・スプリング１３・・・・・可撓管
１４・・・・・膨張膜 １４′・・・・・−・気
密空間１７・・・・・流体供給管
２１−・・・・先導部材 ２１′・・・・・・・後
導部材２３・−・−車輪 ２５．２５’・・−・・
・・フレキシブル管２６・・〜・・係合部 ２７
・・・−・・・・牽引ワイヤー２９〜・−管路
特 許 出 願 人 東京瓦斯株式会社特 許 出
願 人 芦森工業株式会社手続補正書（方式）
平成１年８月３１日
１、事件の表示
特願平１−１２８４６０
２、発明の名称
曲がりを含む管路なその内面から部分補修する装置
３、補正をする者
事件との関係 出願人
東京都港区海岸１丁目５１２０号
東京瓦斯株式会社
代表者 安西邦夫 他１社
４、代理人〒１１３
東京都文京区本駒込５丁目７３番２号
平成１年 ８月１４日
６、補正の対象
明細書及び委任状
７、補正の内容
（１）明細書３ページ上から１行目と２行目間に次の文
章を加入する。
「３、発明の詳細な説明」
（２）本件に関し、委任状を補正する。
８、添付書類の目録
（１）委任状 ２通FIG. 1 is a longitudinal sectional view of the repair device according to the present invention, FIG. 2 is a sectional view taken along line a-a' in FIG. 1, FIG. 3 is a sectional view taken along line bb' in FIG. Figure 3 is a cross-sectional view taken along the line c-c' in Figure 3, Figure 5 is a cross-sectional view taken along the line d-d' in Figure 3, Figure 6 is an explanatory diagram of the situation in which a work hole is excavated for repair work in an existing pipeline, and Figure 5 is a cross-sectional view taken along the line d-d' in Figure 3. Figure 7 is a vertical sectional view of the repair device passing through a curved pipe, Figure 8 is a vertical sectional view of the fixing jig of the repair device in close contact with the inner surface of the pipe, and Figure 9 is a vertical sectional view of the repair device passing through a curved pipe.
The figure is a cross-sectional view taken along the line e-e' in Figure 8, Figure 10 is a longitudinal cross-sectional view of the device protector being moved from the repair tool body, and Figure 11 is a cross-sectional view of the state in which the expansion film is inflated and the repair material is expanded in diameter. , FIG. 12 is a longitudinal sectional view of the repaired area showing the state of completion of repair, and FIG. 13 is an explanatory view of a known example. 1...Tip member 1'...Rear end member 3...Cylinder 4...
--- Piston 5 --- Fixing means 6 ---
...-Engaging claw 7...--Hook lO--
-... Spring 13... Flexible tube 14... Expansion membrane 14'... Airtight space 17... Fluid supply pipe 21-...・Leading member 21'... Trailing member 23...-Wheel 25.25'...
...Flexible pipe 26...Engagement part 27
...... Traction wire 29 - Pipeline patent applicant Tokyo Gas Co., Ltd. Patent applicant Ashimori Kogyo Co., Ltd. Procedural amendment (method) August 31, 1999 1, Indication of the case Patent application No. 1-128460 2. Name of the invention Device for partially repairing pipes including bends from the inside 3. Person making the amendment Relationship to the case Applicant: Tokyo Gas, 5120 Kaigan 1-chome, Minato-ku, Tokyo Co., Ltd. Representative Kunio Anzai 1 other company 4 Agent Address: 5-73-2 Honkomagome, Bunkyo-ku, Tokyo 113 August 14, 1999 6 Specification subject to amendment and power of attorney 7 Contents of amendment ( 1) Add the following sentence between the first and second lines from the top of page 3 of the specification. "3. Detailed Description of the Invention" (2) Regarding this matter, the power of attorney will be amended. 8. List of attached documents (1) Power of attorney (2 copies)
Claims (5)
材を、後端には後端部材を取り付けると共に前記可撓管
の外側に気密空間を置いて同心に膨張膜を配し、この膨
張膜の両端を前記前端部材と後端部材に夫々固定して前
記気密空間内には外部から流体を圧入したり排除したり
するための流体流入孔を開孔すると共に前記膨張膜には
発熱手段を構成して成る補修具本体と、 前記補修具本体を前端部材側から内部に同心的にそして
、先端部材側をフリーに挿入することができる可撓性を
有し、かつ所要の箇所に移動用の車輪を取り付けて成る
鞘状の保護体と、 前記保護体の挿入口と前記補修具本体の後端部材間を結
合したり、遠隔操作によりこの結合関係を解除したりす
るための固定手段と、 補修具本体の後端部材の外周から遠隔操作により放射状
に突出する固定脚と、 から成る曲がりを含む管路をその内面から部分補修する
装置。(1) A front end member is attached to the front end of a flexible tube that has airtightness and shape retention, and a rear end member is attached to the rear end, and an inflatable membrane is arranged concentrically with an airtight space outside the flexible tube. Both ends of the inflatable membrane are fixed to the front end member and the rear end member, respectively, and fluid inflow holes are formed in the airtight space for pressurizing fluid from the outside and for expelling it. The repair tool main body constitutes a heat generating means, and the repair tool main body has flexibility that allows the repair tool main body to be inserted concentrically from the front end member side into the interior and the tip member side can be freely inserted, and has the required flexibility. A sheath-like protective body with wheels for movement attached to the parts thereof, and an insertion port of the protective body and the rear end member of the repair tool body are connected, and this connection relationship is released by remote control. A device for partially repairing a conduit including a bend from its inner surface, comprising: a fixing means for fixing the repair tool; fixing legs projecting radially from the outer periphery of a rear end member of a repair tool body by remote control;
材の外周に前記係合部に係合自在の係合爪を設けると共
にこの係合爪の解除を流体又は電気的な手段で遠隔操作
するように構成して成る請求項（１）記載の曲がりを含
む管路をその内面から部分補修する装置。(2) An engaging part is formed on the outer periphery of the insertion opening of the protector, and an engaging claw that can be freely engaged with the engaging part is provided on the outer periphery of the rear end member, and the engagement claw can be released by fluid or electric. 2. A device for partially repairing a conduit including a bend from its inner surface according to claim 1, wherein the device is configured to be remotely operated by a suitable means.
輪取付部を有し、この車輪取付部において円周方向に等
間隔で少なくとも３ヶ以上の移動用車輪を取り付けて成
る請求項（１）記載の曲がりを含む管路をその内面から
部分補修する装置。(3) Claim (1) wherein the protective body has at least two or more wheel attachment portions on the outer periphery in the longitudinal direction, and at least three or more wheels for transportation are attached to the wheel attachment portions at equal intervals in the circumferential direction. ) A device for partially repairing pipes containing bends as described above from the inside.
ている請求項（１）記載の曲がりを含む管路をその内面
から部分補修する装置。(4) The device for partially repairing a conduit including a bend from its inner surface according to claim (1), wherein the expansion membrane is made of rubber that generates heat when energized.
る請求項（１）記載の曲がりを含む管路をその内面から
部分補修する装置。(5) An apparatus for partially repairing a conduit including a bend from the inner surface thereof according to claim (1), wherein a through passage is formed in the protector and the repair tool body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1128460A JP2800977B2 (en) | 1989-05-22 | 1989-05-22 | A device that partially repairs a pipe containing a bend from its inner surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1128460A JP2800977B2 (en) | 1989-05-22 | 1989-05-22 | A device that partially repairs a pipe containing a bend from its inner surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02309081A true JPH02309081A (en) | 1990-12-25 |
| JP2800977B2 JP2800977B2 (en) | 1998-09-21 |
Family
ID=14985262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1128460A Expired - Fee Related JP2800977B2 (en) | 1989-05-22 | 1989-05-22 | A device that partially repairs a pipe containing a bend from its inner surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2800977B2 (en) |
-
1989
- 1989-05-22 JP JP1128460A patent/JP2800977B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2800977B2 (en) | 1998-09-21 |
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