JP3059666B2 - Pipe inner surface repair device and pipe inner surface repair method - Google Patents
Pipe inner surface repair device and pipe inner surface repair methodInfo
- Publication number
- JP3059666B2 JP3059666B2 JP7254670A JP25467095A JP3059666B2 JP 3059666 B2 JP3059666 B2 JP 3059666B2 JP 7254670 A JP7254670 A JP 7254670A JP 25467095 A JP25467095 A JP 25467095A JP 3059666 B2 JP3059666 B2 JP 3059666B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- rubber cylinder
- pipe inner
- heater
- repairing
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主として下水管の
亀裂や、下水管の連結部の外れを修理補修する管内面補
修装置に係り、特に配管の曲がり部や配管連結部に段差
が生じて外れた場合にも補修することができる管内面補
修装置およびその装置による管内面補修方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe inner surface repairing device for repairing and repairing a crack in a sewer pipe or a disconnection of a connecting part of a sewer pipe, and more particularly to a step in a bent part of a pipe or a pipe connecting part. The present invention relates to a pipe inner surface repairing device that can be repaired even when it comes off, and a pipe inner surface repairing method using the device.
【０００２】[0002]
【従来の技術】下水管の管内面補修装置として、装置本
体の長手方向両端に円盤状部材を一対設け、その一対の
円盤状部材間をゴム筒体で連結すると共に、そのゴム筒
体の内部に加熱用ヒータを設けたものが提案されてい
る。この管内面補修装置は、ゴム筒体外周に熱硬化性水
封剤を含浸した補修布を被着させ、下水管の亀裂箇所に
おいて内部に圧縮空気を供給することによりゴム筒体を
膨張させ、補修布を管内面に圧着しつつ、内部のヒータ
により水封剤を硬化させて、管内壁にそれを接合するも
のである。2. Description of the Related Art As a pipe inner surface repairing device for a sewer pipe, a pair of disk-shaped members are provided at both ends in the longitudinal direction of a device main body, and the pair of disk-shaped members are connected by a rubber cylinder. Provided with a heater for heating. This pipe inner surface repairing device is to apply a repair cloth impregnated with a thermosetting water sealant to the outer periphery of the rubber cylinder, and to expand the rubber cylinder by supplying compressed air to the inside of the crack in the sewer pipe, While the repair cloth is pressed against the inner surface of the pipe, the water sealant is hardened by an internal heater, and is joined to the inner wall of the pipe.
【０００３】[0003]
【発明が解決しようとする課題】ところが、下水管の曲
がり部の曲がり角度が一定以上の場合には、その管内面
補修装置が曲がり部を通過できないことがある。従っ
て、そのような曲がり部に亀裂等が発生しても補修が不
可能である。さらには、下水管の連結部（継目部）が外
れてその外れた部分に段差が生じることがある。（図５
参照）このように連結部の外れに段差が生じると、その
部分の補修ができなかった。そこで本発明は、このよう
な曲がり部や段差状の外れ部を補修できる管内面補修装
置および管内面補修方法を提供することを目的とし、そ
の目的達成のために次の構成をとる。However, when the bend angle of the bent portion of the sewer pipe is equal to or greater than a predetermined value, the pipe inner surface repair device may not be able to pass through the bent portion. Therefore, even if such a bent portion has a crack or the like, it cannot be repaired. Further, the connecting portion (seam portion) of the sewer pipe may be disengaged, and a step may occur in the disengaged portion. (FIG. 5
(See Reference.) If a step occurs in the detachment of the connecting portion, the portion cannot be repaired. Accordingly, an object of the present invention is to provide a pipe inner surface repairing device and a pipe inner surface repairing method capable of repairing such a bent portion or a stepped off portion, and has the following configuration to achieve the purpose.
【０００４】[0004]
【課題を解決するための手段】 本発明の管内面補修装
置は、平面が対向して配置され、少なくとも一方に圧縮
空気の導入孔１が設けられた一対の端板２と、その一対
の端板２の中心部に両端部が夫々貫通固定され、その軸
線が屈曲自在に形成されたフレキシブル水抜き管３と、
前記一対の端板２の外周部間を連結して内部を気密に構
成すると共に、内部の空気圧により半径方向に拡縮する
ゴム筒体４と、そのゴム筒体４の内部に設けられ、ゴム
筒体４を加熱するヒータ５と、前記ヒータ５の基板５ａ
が前記ゴム筒体４の内面に常に接触するように、前記フ
レキシブル水抜管３とヒータ５との間に介装されたバネ
６と、を具備するのもである。また、本発明の具体的な
実施形態は、前記ゴム筒体４の断面外周が円形である。
或いは、前記ゴム筒体４の断面外周が卵型である。また
他の実施の形態は、前記ヒータ５の基板５ａに電熱線５
ｂが取付けられたものである。さらには、前記ゴム筒体
４の内面に蛇行状に電熱線５ｂが配置され、その一部の
みゴム筒体４に止着されたものである。Means for Solving the Problems A pipe inner surface repairing device of the present invention includes a pair of end plates 2 having flat surfaces arranged opposite to each other and having at least one of them provided with a compressed air introduction hole 1, and a pair of end plates 2. A flexible drainage pipe 3 whose both ends are respectively fixed through the center of the plate 2 and whose axis is formed to be flexible;
A rubber cylinder 4 connected between outer peripheral portions of the pair of end plates 2 to form an airtight interior and expand and contract in a radial direction by an internal air pressure, and a rubber cylinder provided inside the rubber cylinder 4. A heater 5 for heating the body 4 and a substrate 5a of the heater 5
So as to always contact the inner surface of the rubber cylinder 4.
A spring interposed between the flexible drain tube 3 and the heater 5
6 is provided. In a specific embodiment of the present invention, the outer circumference of the cross section of the rubber cylinder 4 is circular.
Alternatively, the outer periphery of the cross section of the rubber cylinder 4 is oval. In another embodiment, a heating wire 5 is provided on a substrate 5a of the heater 5.
b is attached. Further, a heating wire 5 b is arranged in a meandering shape on the inner surface of the rubber cylinder 4, and only a part of the heating wire 5 b is fixed to the rubber cylinder 4.
【０００５】 次に、他の本発明は、前記管内面補修装
置の使用方法において、熱硬化性水封剤が塗布または含
浸された帯状布よりなる補修材１７を、前記ゴム筒体４
の外周にその懸回方向両端部が重なるようにして懸回被
着すると共に、その補修材１７の外周に脱落防止用輪ゴ
ム２０等の保持体を取付けて、その補修材１７を前記懸
回方向に拡縮自在にゴム筒体４に止着する工程と、その
ゴム筒体４の内部を実質的に大気圧以下にして、管内面
の被補修部に前記管内面補修装置を移動する工程と、次
いで、前記ゴム筒体４の内部に圧縮空気を供給して、そ
れを膨張させることにより、前記補修材１７を管内面の
前記被補修部に圧接しつつ、バネ６によって筒体４の内
面に常に接触せしめられる前記ヒータ５に通電して前記
熱硬化性水封剤を硬化させる工程と、硬化後に内部の圧
縮空気を放出して、前記管内面補修装置を被補修部から
管の外部に取り出す工程と、を具備するものである。ま
たその具体的な実施の形態は、前記ゴム筒体４の内部を
実質的に大気圧以下にして管内面の曲折した被補修部に
前記管内面補修装置を移動し、その管内面補修装置の軸
線をほぼその曲折部に沿うようにする工程、を有するも
のである。[0005] Next, another aspect of the present invention is the method of using the pipe inner surface repairing device, wherein the repairing material 17 made of a belt-like cloth coated or impregnated with a thermosetting water sealant is used.
At the same time, the suspension member is suspended so that both ends in the suspending direction overlap with the outer periphery of the member. A step of fixing the inside of the rubber cylinder 4 to be substantially equal to or less than the atmospheric pressure, and a step of moving the pipe inner surface repairing device to a repaired portion of the pipe inner surface, Next, compressed air is supplied to the inside of the rubber cylinder 4 to expand it, so that the repair material 17 is pressed against the repaired portion on the inner surface of the pipe, and the inside of the cylinder 4 is spring-loaded.
Energizing the heater 5 which is constantly brought into contact with the surface to cure the thermosetting water sealant, and releasing the internal compressed air after the curing to cause the pipe inner surface repairing device to move the pipe inner surface repair device from the repaired portion to the outside of the tube. And a step of taking out. Further, in a specific embodiment, the inside of the rubber cylinder 4 is moved to substantially below atmospheric pressure to move the inside repairing device to the bent portion of the inside of the tube, and the inside repairing device of the tube is moved. Making the axis substantially along the bent portion.
【０００６】[0006]
【発明の実施の形態】次に、図面に基づいて本発明の実
施の形態につき説明する。図１は本発明の管内面補修装
置であって、図３のＩ−Ｉ線断面図である。また、図２
は図１の軸直角断面略図、図３は同装置の側面図であ
る。さらに、図４は本装置の使用状態を示す説明図、図
５は同装置により補修された下水管の説明図である。本
発明の管内面補修装置は図１に示す如く、平面が対向し
て配置された一対の端板２を有する。この端板２には圧
縮空気の導入孔１が設けられ、そこにエアーコネクタを
介してエアーホース11が接続される。それと共に、ヒー
タ電源用の電気ケーブル12が接続され、その電気ケーブ
ル12に内部のヒータ５が接続されている。端板２は外周
が円形で、その周面に浅い溝部（図１）が形成されてい
る。また中心ボス部には孔が形成され、そこに短い連結
管18が液密に接合固定されている。そしてこの連結管18
を介し、一対の端板２がフレキシブル水抜管３に接続さ
れている。即ち、フレキシブル水抜管３の外周が連結管
18の先端に被嵌され、そこに締結バンド７が取付けられ
る。このフレキシブル水抜管３は、図２に示す如く２重
のゴム層からなり、その中間に細い多数の補強用細線19
が夫々螺旋状に埋設されている。この補強用細線19は、
後述するゴム筒体４内部に圧縮空気を供給したとき、そ
の内圧によりフレキシブル水抜管３が潰れることを防止
して、水の通水性を確保するものである。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a pipe inner surface repairing apparatus of the present invention, and is a cross-sectional view taken along line II of FIG. FIG.
Is a schematic cross-sectional view taken at right angles to the axis of FIG. 1, and FIG. 3 is a side view of the apparatus. FIG. 4 is an explanatory view showing a use state of the present apparatus, and FIG. 5 is an explanatory view of a sewer pipe repaired by the apparatus. As shown in FIG. 1, the pipe inner surface repairing device of the present invention has a pair of end plates 2 arranged so as to face each other. The end plate 2 is provided with a compressed air introduction hole 1 to which an air hose 11 is connected via an air connector. At the same time, an electric cable 12 for heater power is connected, and the internal heater 5 is connected to the electric cable 12. The outer periphery of the end plate 2 is circular, and a shallow groove (FIG. 1) is formed on the peripheral surface. Further, a hole is formed in the center boss portion, and a short connecting pipe 18 is joined and fixed thereto in a liquid-tight manner. And this connecting pipe 18
, The pair of end plates 2 is connected to the flexible drain tube 3. That is, the outer periphery of the flexible drainage pipe 3 is a connecting pipe.
The fastening band 7 is attached to the tip of the connector 18, and the fastening band 7 is attached thereto. As shown in FIG. 2, the flexible drain tube 3 is composed of a double rubber layer, and a large number of thin reinforcing wires 19 are provided between the rubber layers.
Are spirally buried, respectively. This thin wire for reinforcement 19
When compressed air is supplied to the inside of a rubber cylinder 4 to be described later, the internal pressure prevents the flexible drainage tube 3 from being crushed, thereby ensuring water permeability.
【０００７】次に、夫々の端板２の外周面には締結バン
ド８を介してゴム筒体４の両端部が気密に取付けられ
る。また、ゴム筒体４の内部には帯状のヒータ５が配置
され、そのヒータ５とフレキシブル水抜管３（又は連結
管１8 ）との間にバネ６が介装され、ヒータ５を常にゴ
ム筒体４内面に接触させている。このヒータ５は一例と
して図７の如く構成されている。即ち、ヒータ５は、可
撓性の耐熱材からなる基板５ａの両面に電熱線５ｂが取
付けられたものである。なお、電熱線５ｂはガラス繊維
からなる可撓性筒状内に挿入され、その筒状外周が基板
５ａに接合されている。この管内面補修装置は、フレキ
シブル水抜管３及びゴム筒体４が共に可撓性材料で、全
体の軸線が屈曲自在となり、図１の如く実線の状態から
鎖線の状態に容易に変形できる。次に、夫々の端板２に
は図１及び図３に示す如く互いに周方向に９０°離間し
て放射状にブラケット９が突設され、夫々のブラケット
９に車輪10が軸支されている。それと共に、ブラケット
９には牽引部13が（図１）取付けられ、そこにワイヤー
端が係止される。Next, both ends of the rubber cylinder 4 are hermetically attached to the outer peripheral surface of each end plate 2 via a fastening band 8. A belt-shaped heater 5 is disposed inside the rubber cylinder 4, and a spring 6 is interposed between the heater 5 and the flexible drain pipe 3 (or the connecting pipe 18). 4 is in contact with the inner surface. The heater 5 is configured as shown in FIG. 7 as an example. That is, the heater 5 has a heating wire 5b attached to both surfaces of a substrate 5a made of a flexible heat-resistant material. The heating wire 5b is inserted into a flexible tube made of glass fiber, and the outer periphery of the tube is joined to the substrate 5a. In this pipe inner surface repair apparatus, both the flexible drainage pipe 3 and the rubber cylinder 4 are made of a flexible material, and the entire axis can be freely bent, and can be easily deformed from a solid line state to a chain line state as shown in FIG. Next, as shown in FIGS. 1 and 3, brackets 9 project radially from each end plate 2 at a circumferential distance of 90 ° from each other, and wheels 10 are supported by the respective brackets 9. At the same time, a traction portion 13 (FIG. 1) is attached to the bracket 9 and the wire end is locked there.
【０００８】[0008]
【管内面補修方法】このようにしてなる管内面補修装置
のゴム筒体４の外周には、剥離剤が塗布されて、その外
周に図９に示す如く織布からなる補修材17が被着され
る。この補修材17は、帯状布よりなり予め熱硬化性水封
剤が塗布または含浸されている。また補修材17は、内部
が大気圧の状態のゴム筒体４の外周よりも広いものを巻
付け、その巻付け方向の両端を部分的に重複させてお
く。そしてその外周に輪ゴム20を一本以上取付け、補修
材17がゴム筒体４の外周から剥がれないように且つ、補
修材17がゴム筒体４の外周に拡縮自在となるようにして
おく。そして管内面補修装置の前後にワイヤ16を接続
し、そのワイヤ16を引くことにより、図４の如くその装
置を被補修部に導く。この実施例では、一対の下水管14
の連結部が外れてその軸線にずれが生じている。このよ
うな場所においても、本装置はゴム筒体４及びフレキシ
ブル水抜管３が共に屈曲自在に形成されているので、そ
の部分に円滑に装置を導ことができる。即ち、連結部の
曲折に応じて本装置の軸線を変化させ得る。次いで、そ
の被補修部に本装置を位置させた状態で図１に示すエア
ーホース11から内部に圧縮空気を供給する。そしてゴム
筒体４を膨張させ、それに伴い補修材17の重複部分が少
なくなるようにし、補修材17を下水管14に図４の如く圧
着させる。[Pipe inner surface repair method] A release agent is applied to the outer periphery of the rubber cylindrical body 4 of the pipe inner surface repair device thus constructed, and a repair material 17 made of a woven cloth is adhered to the outer periphery as shown in FIG. Is done. The repair material 17 is made of a belt-like cloth, and is coated or impregnated with a thermosetting water sealant in advance. The repair material 17 is wound around the rubber cylinder 4 whose inside is wider than the outer periphery of the atmospheric pressure state, and both ends in the winding direction are partially overlapped. Then, one or more rubber bands 20 are attached to the outer periphery so that the repair material 17 is not peeled off from the outer periphery of the rubber cylinder 4 and the repair material 17 is expandable and contractable on the outer periphery of the rubber cylinder 4. Then, a wire 16 is connected before and after the pipe inner surface repair device, and by pulling the wire 16, the device is guided to the repaired portion as shown in FIG. In this embodiment, a pair of drains 14
Is dislocated, and the axis is displaced. Even in such a place, since the rubber cylinder 4 and the flexible drain tube 3 are both formed to be bendable in this device, the device can be smoothly guided to that portion. That is, the axis of the apparatus can be changed according to the bending of the connecting portion. Next, compressed air is supplied to the inside from the air hose 11 shown in FIG. Then, the rubber cylinder 4 is expanded so that the overlapping portion of the repair material 17 is reduced accordingly, and the repair material 17 is crimped to the sewer pipe 14 as shown in FIG.
【０００９】次いで、内部のヒータ５に通電しゴム筒体
４内面を５０〜８０℃程度に加熱し、その外表面に被着
された補修材17の熱硬化性水封剤を硬化させると共に、
下水管14の内面にそれを接合させる。そして下水管14の
内面の全周に渡ってそれが接合される。この補修材17の
硬化中、下水管14の一部はゴム筒体４で閉塞され、下水
管14の上流側から内部に流入する水15は、フレキシブル
水抜管３を通って下流側に流通する。それにより下水管
14内で管内面補修装置の上流側の内圧がその下流側の内
圧より高まることを防止し、本装置が被補修部から移動
するのを防ぐものである。即ち、フレキシブル水抜管３
が存在しないと下水管14の上流側が閉塞されるため、最
大水頭は下水管14の埋設位置の深さとなり、その水頭圧
が管内面補修装置に加わる。下水管14は地下２０ｍ程の
ところに埋設されるので、その内部の閉塞により水圧は
異常に上昇してしまう場合がある。しかしながら、本装
置にはフレキシブル水抜管３が存在するため、下水管14
の内部を閉塞させることなく、下水管14中の水15を下流
側に円滑に流通させ、管内面補修装置の上流側と下流側
との水圧をほぼ等しく維持できる。次に補修材17が十分
に硬化し、それが硬化に伴って下水管14内面に接合され
ると、ゴム筒体４内の圧縮空気をエアーホース11を介し
て外部に放出させる。そしてゴム筒体４の外直径を縮小
させ、本装置を下水管14の補修部から引き抜けばよい。
このようにして接続部が外れた下水管14の段差部は、図
５の如く補修材17によって液密に連結される。Next, the inner heater 5 is energized to heat the inner surface of the rubber cylinder 4 to about 50 to 80 ° C. to cure the thermosetting water sealant of the repair material 17 attached to the outer surface thereof,
It is bonded to the inner surface of the drain pipe 14. Then, it is joined over the entire circumference of the inner surface of the drain pipe 14. During the curing of the repair material 17, a part of the sewer pipe 14 is closed by the rubber cylinder 4, and the water 15 flowing into the inside from the upstream side of the sewer pipe 14 flows through the flexible drain pipe 3 to the downstream side. . Thereby drain
It is intended to prevent the internal pressure on the upstream side of the pipe inner surface repair device from becoming higher than the internal pressure on the downstream side thereof within 14, and prevent the present device from moving from the repaired portion. That is, the flexible drain tube 3
If there is no water pipe, the upstream side of the sewer pipe 14 will be closed, and the maximum head will be the depth of the buried position of the sewer pipe 14, and the head pressure will be applied to the pipe inner surface repair device. Since the sewage pipe 14 is buried about 20 m below the ground, the water pressure may rise abnormally due to blockage of the inside. However, since the apparatus has the flexible drain pipe 3, the drain pipe 14 is not provided.
Without blocking the inside of the pipe, the water 15 in the sewer pipe 14 can flow smoothly to the downstream side, and the water pressures on the upstream side and the downstream side of the pipe inner surface repair device can be maintained substantially equal. Next, when the repair material 17 is sufficiently hardened and is joined to the inner surface of the sewer pipe 14 with the hardening, the compressed air in the rubber cylinder 4 is discharged to the outside via the air hose 11. Then, the outer diameter of the rubber cylinder 4 is reduced, and the device may be pulled out from the repair portion of the drain pipe 14.
The step portion of the sewer pipe 14 from which the connection portion has been disconnected in this way is connected in a liquid-tight manner by the repair material 17 as shown in FIG.
【００１０】[0010]
【変形例】なお、図６は本発明の装置の他の実施例であ
り、ゴム筒体４及びその両端部が連結する端板２が卵型
に形成された実施例である。この装置は下水管の内面が
卵型の場合に適用されるものである。次に、図８はヒー
タ５の他の実施例であり、この実施例は電熱線５ｂが蛇
行状に形成されると共に、その平行部のみが帯状の基板
５ａによりゴム筒体４の内面に止着される。即ち、基板
５ａはゴム筒体４の内面に電熱線５ｂの挿通部を除いて
接着される。そして、ゴム筒体４の膨張に伴い基板５ａ
も膨張する。このとき電熱線５ｂの湾曲部が変形し、ゴ
ム筒体４及び基板５ａの膨張により切断されることな
く、その膨張を吸収するものである。FIG. 6 shows another embodiment of the apparatus according to the present invention, in which a rubber cylinder 4 and an end plate 2 connecting both ends thereof are formed in an oval shape. This device is applied when the inner surface of the sewer is oval. Next, FIG. 8 shows another embodiment of the heater 5. In this embodiment, the heating wire 5b is formed in a meandering shape, and only the parallel portion thereof is fixed to the inner surface of the rubber cylinder 4 by the band-shaped substrate 5a. Be worn. That is, the substrate 5a is adhered to the inner surface of the rubber cylinder 4 except for the portion through which the heating wire 5b is inserted. Then, as the rubber cylinder 4 expands, the substrate 5 a
Also expands. At this time, the curved portion of the heating wire 5b is deformed and absorbs the expansion without being cut by the expansion of the rubber cylinder 4 and the substrate 5a.
【００１１】[0011]
【発明の作用・効果】本発明の管内面補修装置は、一対
の端板２の中心部間を連結するフレキシブル水抜管３の
軸線が屈曲自在に形成されているので、ゴム筒体４に補
修材17を被着し、その補修材17に熱硬化性水封剤を含浸
させることにより、配管の曲がりに沿って管内面補修装
置を配置しその部分の補修を行いつつ、配管内部の水を
下流側に流通させることができる。それにより装置の上
流側と下流側との水圧をほぼ等しくし、管の曲がり部等
における補修の信頼性を向上させる。In the pipe inner surface repairing apparatus of the present invention, since the axis of the flexible drainage pipe 3 connecting the central portions of the pair of end plates 2 is formed to be free to be bent, the rubber cylindrical body 4 is repaired. By attaching the material 17 and impregnating the repair material 17 with a thermosetting water sealant, a pipe inner surface repairing device is arranged along the bend of the pipe, and while repairing that part, the water inside the pipe is removed. It can be circulated downstream. As a result, the water pressure on the upstream side and the water pressure on the downstream side of the device are made substantially equal, and the reliability of repair at a bent portion of the pipe or the like is improved.
【００１２】また本発明の管内面補修方法は、ゴム筒体
４の外周に帯状布よりなる補修材17を、その懸回方向両
端部が重なるようにして懸回被着すると共に、その補修
材17の外周に脱落防止用輪ゴム20等の保持体を取付け
て、その補修材17を前記懸回方向に拡縮自在にゴム筒体
４に止着する工程と、そのゴム筒体４の内部を実質的に
大気圧以下にして、管内面の被補修部に前記管内面補修
装置を移動する工程と、次いで、前記ゴム筒体４の内部
に圧縮空気を供給して、それを膨張させることにより、
前記補修材17を管内面の前記被補修部に圧接しつつ、前
記ヒータ５に通電して前記熱硬化性水封剤を硬化させる
工程と、硬化後に内部の圧縮空気を放出して前記管内面
補修装置を被補修部から管の外部に取り出す工程と、を
具備するから、補修材17を確実に管内面の被補修部に移
動して、そこに接合することができる。また管内面の曲
折した被補修部においても、その管内面補修装置の軸線
をほぼその曲折部に沿うようにして補修材17をその位置
に確実に接合することができる。Further, in the pipe inner surface repairing method of the present invention, a repairing material 17 made of a band-shaped cloth is hung on the outer periphery of the rubber cylinder 4 so that both ends in the hanging direction overlap with each other. A step of attaching a retainer such as a rubber band 20 for preventing falling off to the outer periphery of 17 and fixing the repair material 17 to the rubber cylinder 4 so as to be able to expand and contract in the hanging direction; The atmospheric pressure or lower, the step of moving the pipe inner surface repairing device to the repaired portion of the pipe inner surface, and then supplying compressed air to the inside of the rubber cylindrical body 4 to expand it,
Energizing the heater 5 to cure the thermosetting water sealant while pressing the repair material 17 against the repaired portion on the inner surface of the tube; Removing the repair device from the repaired portion to the outside of the pipe, so that the repair material 17 can be reliably moved to the repaired portion on the inner surface of the pipe and joined thereto. In addition, even at the repaired portion where the inner surface of the pipe is bent, the repair material 17 can be securely joined to the position so that the axis of the inner surface repair device is substantially along the bent portion.
【図１】本発明の管内面補修装置であって、図３のＩ−
Ｉ線断面図。FIG. 1 is a pipe inner surface repairing apparatus of the present invention,
FIG.
【図２】図２は図１の軸直角断面略図。FIG. 2 is a schematic cross-sectional view taken along a line perpendicular to the axis of FIG.
【図３】同装置の側面図。FIG. 3 is a side view of the device.
【図４】本装置の使用状態を示す説明図。FIG. 4 is an explanatory diagram showing a use state of the present apparatus.
【図５】同装置により補修された下水管の説明図。FIG. 5 is an explanatory view of a sewer pipe repaired by the device.
【図６】本発明の他の実施例における縦断面図であっ
て、図２と同様の方向がら見たもの。FIG. 6 is a longitudinal sectional view of another embodiment of the present invention, viewed from the same direction as FIG. 2;
【図７】ヒータ５の一例を示す縦断面図。FIG. 7 is a longitudinal sectional view showing an example of a heater 5.
【図８】ヒータ５の他の実施例を示す一部破断説明図。FIG. 8 is a partially cutaway explanatory view showing another embodiment of the heater 5.
【図９】本発明の管内面補修装置のゴム筒体４に補修材
17を懸回して、それの外周を輪ゴムで拡縮自在に止着し
た断面図。FIG. 9 shows a repair material for the rubber cylinder 4 of the pipe inner surface repair apparatus of the present invention.
17 is a cross-sectional view in which 17 is suspended and its outer periphery is elastically fastened with rubber bands.
１ 導入孔 ２ 端板 ３ フレキシブル水抜管 ４ ゴム筒体 ５ ヒータ ５ａ 基板 ５ｂ 電熱線 ６ バネ ７ 締結バンド ８ 締結バンド ９ ブラケット 10 車輪 11 エアーホース 12 電気ケーブル 13 牽引部 14 下水管 15 水 16 ワイヤ 17 補修材 18 連結管 19 補強用細線 20 輪ゴム DESCRIPTION OF SYMBOLS 1 Introducing hole 2 End plate 3 Flexible drainage pipe 4 Rubber cylinder 5 Heater 5a Substrate 5b Heating wire 6 Spring 7 Fastening band 8 Fastening band 9 Bracket 10 Wheel 11 Air hose 12 Electric cable 13 Pulling section 14 Drain pipe 15 Water 16 Wire 17 Repair material 18 Connecting pipe 19 Reinforcing wire 20 Rubber band
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 55/16 F16L 55/18 ──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) F16L 55/16 F16L 55/18
Claims (7)
方に圧縮空気の導入孔１が設けられた一対の端板２と、
その一対の端板２の中心部に両端部が夫々貫通固定さ
れ、その軸線が屈曲自在に形成されたフレキシブル水抜
き管３と、前記一対の端板２の外周部間を連結して内部
を気密に構成すると共に、内部の空気圧により半径方向
に拡縮するゴム筒体４と、 そのゴム筒体４の内部に設けられ、ゴム筒体４を加熱す
るヒータ５と、前記ヒータ５の基板５ａが前記ゴム筒体４の内面に常に
接触するように、前記フレキシブル水抜管３とヒータ５
との間に介装されたバネ６と、 を具備する管内面補修装置。1. A pair of end plates 2 whose planes are opposed to each other and at least one of which is provided with a compressed air introduction hole 1,
Both ends are respectively fixed through the center of the pair of end plates 2, and the axes thereof are connected to the flexible drainage pipe 3, which is formed to be freely bent, and the outer periphery of the pair of end plates 2. A rubber cylinder 4, which is airtight and expands and contracts in the radial direction by the internal air pressure, a heater 5 provided inside the rubber cylinder 4 and heating the rubber cylinder 4, and a substrate 5a of the heater 5 Always on the inner surface of the rubber cylinder 4
The flexible drain tube 3 and the heater 5 are brought into contact with each other.
And a spring 6 interposed therebetween.
面外周が円形である管内面補修装置。2. The pipe inner surface repair apparatus according to claim 1, wherein the outer circumference of the cross section of the rubber cylinder 4 is circular.
面外周が卵型である管内面補修装置。3. The pipe inner surface repairing device according to claim 1, wherein the outer periphery of the cross section of the rubber cylinder 4 is oval.
５ａに電熱線５ｂが取付けられた管内面補修装置。4. The pipe inner surface repair apparatus according to claim 1, wherein a heating wire 5b is attached to a substrate 5a of the heater 5.
面に蛇行状に電熱線５ｂが配置され、その一部のみがゴ
ム筒体４に止着された管内面補修装置。5. The pipe inner surface repair apparatus according to claim 1, wherein a heating wire 5b is arranged in a meandering shape on the inner surface of the rubber cylinder 4, and only a part thereof is fixed to the rubber cylinder 4.
おいて、 熱硬化性水封剤が塗布または含浸された帯状布よりなる
補修材１７を、前記ゴム筒体４の外周にその懸回方向両
端部が重なるようにして懸回被着すると共に、その補修
材１７の外周に脱落防止用輪ゴム２０等の保持体を取付
けて、その補修材１７を前記懸回方向に拡縮自在にゴム
筒体４に止着する工程と、 そのゴム筒体４の内部を実質的に大気圧以下にして、管
内面の被補修部に前記管内面補修装置を移動する工程
と、 次いで、前記ゴム筒体４の内部に圧縮空気を供給して、
それを膨張させることにより、前記補修材１７を管内面
の前記被補修部に圧接しつつ、バネ６によって筒体４の
内面に常に接触せしめられる前記ヒータ５に通電して前
記熱硬化性水封剤を硬化させる工程と、 硬化後に内部の圧縮空気を放出して、前記管内面補修装
置を被補修部から管の外部に取り出す工程と、 を具備する管内面補修方法。6. The method of using the pipe inner surface repair apparatus according to claim 1, wherein a repair material 17 made of a band-like cloth coated or impregnated with a thermosetting water sealant is suspended around the outer periphery of the rubber cylinder 4. A rubber cylinder is attached to the outer periphery of the repairing material 17 such that a dropping prevention rubber band 20 or the like is attached to the outer periphery of the repairing material 17 so that the repairing material 17 can expand and contract in the hanging direction. Fixing the inside of the rubber tube 4 to substantially the atmospheric pressure or less, and moving the pipe inner surface repairing device to a repaired portion of the tube inner surface; Supply compressed air to the inside of 4,
By expanding it, the repair material 17 is pressed against the repaired portion on the inner surface of the pipe , and
Energizing the heater 5 which is always brought into contact with the inner surface to cure the thermosetting water sealant; releasing the internal compressed air after the curing to allow the pipe inner surface repairing device to move the pipe inner surface repair device from the repaired portion to the outside of the tube; A method for repairing the inner surface of a pipe, comprising:
部を実質的に大気圧以下にして管内面の曲折した被補修
部に前記管内面補修装置を移動し、その管内面補修装置
の軸線をほぼその曲折部に沿うようにする工程、 を有する管内面補修方法。7. The pipe inner surface repairing device according to claim 6 , wherein the inside of the rubber cylindrical body 4 is set to substantially the atmospheric pressure or less and the pipe inner surface repairing device is moved to a bent portion of the pipe inner surface to be repaired. Making the axis substantially along the bent portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7254670A JP3059666B2 (en) | 1995-09-06 | 1995-09-06 | Pipe inner surface repair device and pipe inner surface repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7254670A JP3059666B2 (en) | 1995-09-06 | 1995-09-06 | Pipe inner surface repair device and pipe inner surface repair method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0972484A JPH0972484A (en) | 1997-03-18 |
| JP3059666B2 true JP3059666B2 (en) | 2000-07-04 |
Family
ID=17268237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7254670A Expired - Fee Related JP3059666B2 (en) | 1995-09-06 | 1995-09-06 | Pipe inner surface repair device and pipe inner surface repair method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3059666B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160110817A (en) | 2015-03-13 | 2016-09-22 | (주)본시스 | Device of issuing certificates for preventing forgery |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100740557B1 (en) * | 2005-05-09 | 2007-07-19 | 이효정 | Repair reinforcement of a pipe is absent |
| DE102006034652B4 (en) * | 2006-07-24 | 2010-02-25 | Meier, Verica | Packer for pipe and sewer rehabilitation |
| DE102013210365A1 (en) * | 2013-06-04 | 2014-12-04 | GRAF Patentverwertungs GbR (vertretungsberechtigte Gesellschafter: Jürgen Graf, 78073 Bad Dürrheim, Joachim Graf, 78073 Bad Dürrheim) | Sealing inner sleeve with deformable intermediate section |
| JP6264991B2 (en) * | 2014-03-26 | 2018-01-24 | 新日鐵住金株式会社 | Stave cooler pipe repair equipment and repair method |
| KR102100077B1 (en) * | 2019-10-10 | 2020-04-10 | (주)국제피스코 | Construction method using sewage pipe partial repair appratus |
-
1995
- 1995-09-06 JP JP7254670A patent/JP3059666B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160110817A (en) | 2015-03-13 | 2016-09-22 | (주)본시스 | Device of issuing certificates for preventing forgery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0972484A (en) | 1997-03-18 |
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