JPH0619916Y2 - Repair device for existing pipe joint - Google Patents
Repair device for existing pipe jointInfo
- Publication number
- JPH0619916Y2 JPH0619916Y2 JP1196789U JP1196789U JPH0619916Y2 JP H0619916 Y2 JPH0619916 Y2 JP H0619916Y2 JP 1196789 U JP1196789 U JP 1196789U JP 1196789 U JP1196789 U JP 1196789U JP H0619916 Y2 JPH0619916 Y2 JP H0619916Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pipe joint
- seal member
- existing pipe
- sealing
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は既設管継手部の補修装置に関する。TECHNICAL FIELD The present invention relates to a repair device for an existing pipe joint.
従来の技術とその問題点 地中に埋設されたガス管などのような既設管に於ては、
管継手部のシール部は、通常継手部外側のモルタル充填
部と、内側の繊維質充填部から構成される。シール部の
うち内側の繊維質充填部は老朽化してくると乾燥収縮し
てシール機能を低下乃至消失し補修が必要となる。Conventional technology and its problems In existing pipes such as gas pipes buried underground,
The seal portion of the pipe joint portion is usually composed of a mortar filling portion outside the joint portion and a fibrous filling portion inside. When the inside of the seal portion is deteriorated, the fibrous filling portion becomes dry and shrinks to deteriorate or lose the sealing function, and repair is required.
従来このような管継手部の補修装置として、既設管内を
牽引移動される管内施工機に備えたゴム製筒状のシール
部材を遠隔操作により膨張し管継手部をシールした状態
でその内部の繊維質充填部内にシール剤を注入し、施工
当初の湿潤状態に復元させるような構造のものが提案さ
れている。ところが従来の補修装置では、シール剤の注
入操作時に空気溜まりにより局部的に注入不良個所を生
じ易く補修の信頼性に欠ける難点があった。Conventionally, as a repair device for such a pipe joint, a rubber tubular seal member provided in an in-pipe construction machine that is towed and moved in an existing pipe is expanded by remote control to seal the pipe joint, and the fibers inside the pipe are sealed. A structure has been proposed in which a sealant is injected into the quality filling portion to restore the wet state at the beginning of construction. However, in the conventional repairing device, there is a problem that a defective injection portion is apt to be locally generated due to air accumulation during the injection operation of the sealing agent, and the reliability of the repairing is lacking.
本考案はこのような従来の問題点を一掃することを目的
としてなされたものである。The present invention has been made for the purpose of eliminating such conventional problems.
問題点を解決するための手段 本考案は、既設管内で遠隔操作により管半径方向に拡張
されて管継手部を内周面側からシールする拡縮自在な筒
状シール部材と、該シール部材拡張によるシール状態下
に管継手部内にシール剤を注入する注入口を具備する既
設管継手部の補修装置に於て、上記シール部材の外周面
に、複数本の突条部が管軸方向の全長に亘り且つ管内周
方向に等間隔を隔てて設けられ、該突条部は、上記シー
ル部材の拡張下シール時にその外表面に喰込んで喰込み
部に沿い排気通路を形成するよう構成されていることを
特徴とする既設管継手部の補修装置に係る。MEANS FOR SOLVING THE PROBLEMS The present invention provides an expandable / contractible cylindrical seal member that is expanded in the pipe radial direction by remote control in an existing pipe to seal the pipe joint portion from the inner peripheral surface side, and the seal member expansion. In a repair device for an existing pipe joint part, which is provided with an injection port for injecting a sealing agent into the pipe joint part under a sealed state, a plurality of ridges are provided on the outer peripheral surface of the seal member along the entire length in the pipe axis direction. The protrusions are provided at equal intervals in the inner circumferential direction of the pipe, and are configured to bite into the outer surface of the seal member when the seal is expanded and form an exhaust passage along the bite. The present invention relates to an existing pipe joint repairing device.
実施例 以下に本考案の一実施例を添附図面にもとづき説明する
と次の通りである。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.
本考案による補修装置は、既設管（ａ）内を遠隔操作に
より移動される施工機（１）を具備し、該施工機（１）
の胴体部（１ａ）には、遠隔操作により管半径方向に拡
張されるゴム製の筒状シール部材（２）が嵌装され、該
シール部材（２）の両端部は、止着具（３）（３）によ
り胴体部（１ａ）に固縛されている。筒状シール部材
（２）の外周面には注入口（４）が好ましくはその下端
部に開口され、該注入口（４）は伸縮管（５）（第３図
参照）、胴体部（１ａ）内の液剤通路（６）及びホース
（７）内の液剤通路（８）を順次経て、地上設置の液剤
供給部（図示せず）に連絡されている。また胴体部（１
ａ）の外周面に、筒状シール部材（２）内に開口される
ように空気の給、排口（９）が形成され、該口（９）
は、胴体部（１ａ）内の空気通路（１０）及びホース
（７）内の空気通路（１１）を順次経て地上設置の圧縮
空気供給部（図示せず）に連絡されている。The repair device according to the present invention comprises a construction machine (1) which is moved by remote control in an existing pipe (a).
A tubular seal member (2) made of rubber, which is expanded in the radial direction of the pipe by remote control, is fitted to the body portion (1a) of the seal member (1a). ) (3), it is fixed to the body part (1a). An injection port (4) is preferably opened at the lower end of the outer peripheral surface of the tubular seal member (2), and the injection port (4) is provided with a telescopic tube (5) (see FIG. 3) and a body (1a). 1) and a liquid agent passage (8) in the hose (7) in order, and is connected to a liquid agent supply unit (not shown) installed on the ground. Also the body part (1
An air supply / exhaust port (9) is formed on the outer peripheral surface of a) so as to be opened in the tubular seal member (2).
Are sequentially connected to a ground-installed compressed air supply unit (not shown) through an air passage (10) in the body (1a) and an air passage (11) in the hose (7).
このような構成の補修装置そのものは公知であり、施工
機（１）を管継手部（ｂ）と位置合せし、次に筒状シー
ル部材（２）を拡張し管継手部（ｂ）を管内周面側から
シールした後、注入口（４）よりシール剤を管継手部
（ｂ）内の繊維質充填部（ｂ１）に注入することによ
り、管継手部（ｂ）の補修を行ない得るようになってい
る。The repair device itself having such a configuration is known, and the construction machine (1) is aligned with the pipe joint portion (b), and then the tubular seal member (2) is expanded to make the pipe joint portion (b) inside the pipe. After sealing from the peripheral surface side, the pipe joint portion (b) can be repaired by injecting the sealing agent into the fibrous filling portion (b 1 ) in the pipe joint portion (b) from the inlet (4). It is like this.
本考案はこのような構成の補修装置に於て、筒状シール
部材（２）の外周面に、複数本例えば４本の突条部（１
２）を管軸方向の全長に亘り且つ管円周方向に等距離を
隔てて設けたことを特徴としている。According to the present invention, in the repair device having such a configuration, a plurality of, for example, four ridges (1
2) is provided over the entire length in the axial direction of the pipe and at equal intervals in the circumferential direction of the pipe.
上記突条部（１２）は通常は第２図に示されるように突
出状態を保持するが、筒状シール部材（２）を拡張し管
（ａ）の内周面に圧着すると、管（ａ）の内周面に押圧
されて筒状シール部材（２）の外表面に喰込み、第４図
に示されるように喰込み部（１３）に沿ってその両側に
排気通路（１４）（１４）を形成する。The ridge (12) normally holds the protruding state as shown in FIG. 2, but when the tubular seal member (2) is expanded and pressure-bonded to the inner peripheral surface of the pipe (a), the pipe (a) ) Is pressed against the inner peripheral surface of the tubular seal member (2) and bites into the outer surface of the tubular seal member (2), and as shown in FIG. ) Is formed.
而して第３〜４図に示されるように、シール剤の注入充
填操作時には、シール剤の注入充填につき、管継手部
（ｂ）内ひいては繊維質充填部（ｂ１）内の空気が上記
排気通路（１４）…を通って外部に排出されて行き、こ
のような気液の交換により、管継手部（ｂ）内の繊維質
充填部（ｂ１）の全域に亘ってシール剤を充分確実に注
入充填できる。Thus, as shown in FIGS. 3 to 4, during the filling and filling operation of the sealing agent, the air in the pipe joint portion (b) and by extension, the fibrous filling portion (b 1 ) is filled with the sealing agent. The exhaust gas is discharged to the outside through the exhaust passages (14), and by such gas-liquid exchange, the sealing agent is sufficiently supplied over the entire area of the fibrous filling portion (b 1 ) in the pipe joint portion (b). Can be surely injected and filled.
また管継手部（ｂ）内ひいては繊維質充填部（ｂ１）内
に注入されたシール剤は下端から徐々に上昇して行くの
で、シール剤の注入充填操作の終了時又は終了近くまで
排気性能を保持するためには、少なくとも１本の突条部
（１２）に付属する排気通路（１４）（１４）が筒状シ
ール部（２）の上部に位置していることが必要となる。
本考案では突条部（１２）は複数本が管円周方向に等間
隔に隔てて設けられているので、少なくとも１本の突条
部（１２）が筒状シール部材（２）の上部に位置するこ
とになり、排気性能をシール剤注入充填操作の終了又は
終了近くまで保持できる。In addition, since the sealing agent injected into the pipe joint portion (b) and further into the fibrous filling portion (b 1 ) gradually rises from the lower end, the exhaust performance is improved until or near the end of the filling and filling operation of the sealing agent. In order to hold the above, it is necessary that the exhaust passages (14) (14) attached to at least one of the ridges (12) are located above the tubular seal portion (2).
In the present invention, since the plurality of ridges (12) are provided at equal intervals in the pipe circumferential direction, at least one ridge (12) is provided on the upper portion of the tubular seal member (2). The exhaust performance can be maintained until or near the end of the sealant injection filling operation.
突条部（１２）の形成本数は、複数本である限り特に制
限はないが、２本では施工機（１）の向きによっては、
比較的早い時期に排気性能を失う虞れがあり、また本数
があまり多くなりすぎるとシール性能に悪影響を与える
虞れがあるので、３〜５本程度が適当であり、図には４
本設けた場合が示されている。The number of protrusions (12) formed is not particularly limited as long as it is plural, but with two, depending on the orientation of the construction machine (1),
Exhaust performance may be lost relatively early, and if the number is too large, the sealing performance may be adversely affected.
The case where a book is provided is shown.
突条部（１２）は、筒状シール部材（２）に一体に形成
されていてもよいが、通常は別体に形成され、その両端
部に於て、止着具（３）により筒状シール部材（２）に
固縛されている。The ridge (12) may be formed integrally with the tubular seal member (2), but it is usually formed as a separate body, and at both ends thereof, the tubular shape is formed by the fasteners (3). It is secured to the seal member (2).
別体構成の場合、突条部（１２）の材質は、筒状シール
部材（２）の拡縮につれ伸縮できるような材質であれば
よく、通常は、構成材料として、図示のような断面長方
形その他円形等のゴム製（スポンジを含む）紐状物が用
いられる。In the case of a separate structure, the material of the protruding portion (12) may be any material that can expand and contract as the cylindrical sealing member (2) expands and contracts, and normally, as the constituent material, a rectangular cross section as shown in the figure and others. A rubber-like (including sponge) string-like material such as a circle is used.
筒状シール部材（２）外表面への突条部（１２）の喰込
みをよくするために、該シール部材（２）を内外２層構
造となし、内層部（２ａ）を耐圧性のよいゴム層から、
また外層部（２ｂ）を圧縮変形を受け易いゴム層から構
成することができる。In order to improve the biting of the protrusions (12) on the outer surface of the tubular seal member (2), the seal member (2) has an inner-outer two-layer structure, and the inner layer part (2a) has good pressure resistance. From the rubber layer,
Further, the outer layer portion (2b) can be composed of a rubber layer that is susceptible to compressive deformation.
効果 本考案補修装置によれば、管継手部内の繊維質充填部
（ｂ１）内にシール剤を注入しつつ、該継手部内より排
気できるので、空気溜まり発生の虞れがなくなり、管内
施工機による管継手部補修の信頼性を向上できる。Effect According to the repairing device of the present invention, while the sealing agent is being injected into the fibrous filling portion (b 1 ) in the pipe joint portion, the sealing agent can be exhausted from the inside of the joint portion, so there is no risk of air accumulation, and the pipe construction machine It is possible to improve the reliability of the repair of the pipe joint.
第１図は本考案実施の１例を示す、筒状シール部縮小時
の縦断面図、第２図は第１図のＡ〜Ａ線に沿う断面図、
第３図は筒状シール部拡張時の縦断面図、第４図は第３
図のＢ〜Ｂ線に沿う断面図である。 図に於て、（１）は施工機、（２）は筒状シール部材、
（３）は止着具、（４）は注入口、（１２）は突条部で
ある。FIG. 1 is a longitudinal sectional view showing an example of carrying out the present invention when a tubular seal portion is contracted, and FIG. 2 is a sectional view taken along the line AA of FIG.
FIG. 3 is a vertical cross-sectional view when the tubular seal portion is expanded, and FIG.
It is sectional drawing which follows the BB line of a figure. In the figure, (1) is a construction machine, (2) is a tubular seal member,
(3) is a fastener, (4) is an inlet, (12) is a ridge.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 辻 俊範 大阪府大阪市東区平野町５丁目１番地 大 阪瓦斯株式会社内 (72)考案者 藤田 光秀 大阪府大阪市東区平野町５丁目１番地 大 阪瓦斯株式会社内 (72)考案者 安井 香一 愛知県名古屋市熱田区桜田町19番18号 東 邦瓦斯株式会社内 (72)考案者 杉木 豊 愛知県名古屋市熱田区桜田町19番18号 東 邦瓦斯株式会社内 (72)考案者 宮崎 康雄 大阪府大阪市東成区大今里南２―16―６ (72)考案者 大日向 正明 三重県名張市桔梗ケ丘南３―３―20 (72)考案者 亘 繁樹 大阪府大阪市大淀区長柄東３―２―３― 1316 (56)参考文献 特公 昭63−53435（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshinori Tsuji, 5-1, Hirano-cho, Higashi-ku, Osaka City, Osaka Prefecture Osaka Gas Co., Ltd. (72) Mitsuhide Fujita, 5-chome, Hirano-cho, Higashi-ku, Osaka City, Osaka Within Han Gas Co., Ltd. (72) Inventor Kaichi Yasui 19-18 Sakurada-cho, Atsuta-ku, Nagoya-shi, Aichi Toho Gas Co., Ltd. (72) Yutaka Sugiki 19-18 Sakurada-cho, Atsuta-ku, Nagoya-shi, Aichi Toho Gas Co., Ltd. (72) Inventor Yasuo Miyazaki 2-16-6 Minami Oimazato, Higashinari-ku, Osaka City, Osaka (72) Inventor Masaaki Ohinata 3-3-20 Minami Kikyogaoka, Nabari City, Mie Prefecture (72) Inventor Shigeki Watari 3-2-3-1316 (56) Nagagashi Higashi, Oyodo-ku, Osaka-shi, Osaka (56) References Japanese Patent Publication No. 63-53435 (JP, B2)
Claims (1)
張されて管継手部を内周面側からシールする拡縮自在な
筒状シール部材と、該シール部材拡張によるシール状態
下に管継手部内にシール剤を注入する注入口を具備する
既設管継手部の補修装置に於て、上記シール部材の外周
面に、複数本の突条部が管軸方向の全長に亘り且つ管内
周方向に等間隔を隔てて設けられ、該突条部は、上記シ
ール部材の拡張下シール時にその外表面に喰込んで喰込
み部に沿い排気通路を形成するよう構成されていること
を特徴とする既設管継手部の補修装置。Claim: What is claimed is: 1. An expandable and contractable tubular seal member for expanding a pipe radial direction by remote control in an existing pipe to seal the pipe joint portion from an inner peripheral surface side, and a pipe joint portion in a sealed state by the expansion of the seal member. In an apparatus for repairing an existing pipe joint part having an injection port for injecting a sealing agent, a plurality of ridges are provided on the outer peripheral surface of the seal member over the entire length in the axial direction of the pipe and in the inner peripheral direction of the pipe. An existing pipe, which is provided at intervals, is configured to bite into an outer surface of the sealing member during expansion and sealing of the sealing member to form an exhaust passage along the biting portion. Repair device for joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1196789U JPH0619916Y2 (en) | 1989-02-02 | 1989-02-02 | Repair device for existing pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1196789U JPH0619916Y2 (en) | 1989-02-02 | 1989-02-02 | Repair device for existing pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02103596U JPH02103596U (en) | 1990-08-17 |
| JPH0619916Y2 true JPH0619916Y2 (en) | 1994-05-25 |
Family
ID=31220990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1196789U Expired - Lifetime JPH0619916Y2 (en) | 1989-02-02 | 1989-02-02 | Repair device for existing pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619916Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2562082B2 (en) * | 1990-12-14 | 1996-12-11 | 大阪瓦斯株式会社 | Repair method for existing pipe joint |
| JP2507143Y2 (en) * | 1992-01-20 | 1996-08-14 | 大阪瓦斯株式会社 | Repair device for existing pipe joint |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6353435B2 (en) | 2012-03-31 | 2018-07-04 | ヴァリアン メディカル システムズ インコーポレイテッド | 4-dimensional cone beam CT using deformable registration |
-
1989
- 1989-02-02 JP JP1196789U patent/JPH0619916Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6353435B2 (en) | 2012-03-31 | 2018-07-04 | ヴァリアン メディカル システムズ インコーポレイテッド | 4-dimensional cone beam CT using deformable registration |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02103596U (en) | 1990-08-17 |
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