JPH09324888A - Electrodeposition plug for repair - Google Patents

Electrodeposition plug for repair

Info

Publication number
JPH09324888A
JPH09324888A JP8142484A JP14248496A JPH09324888A JP H09324888 A JPH09324888 A JP H09324888A JP 8142484 A JP8142484 A JP 8142484A JP 14248496 A JP14248496 A JP 14248496A JP H09324888 A JPH09324888 A JP H09324888A
Authority
JP
Japan
Prior art keywords
piping
pipe
plug
passing hole
plug body
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
Application number
JP8142484A
Other languages
Japanese (ja)
Inventor
Sumio Matsuno
純雄 松野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP8142484A priority Critical patent/JPH09324888A/en
Publication of JPH09324888A publication Critical patent/JPH09324888A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
    • B29C66/52231—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52294—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being heated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B29C66/634—Internally supporting the article during joining using an inflatable core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D

Abstract

PROBLEM TO BE SOLVED: To simplify repair work at an executing job site, by projecting a plug body in the center of the faying surface of a synthetic resin-made saddle curved at the predetermined curvature, and embedding a heating wire in the fitting surface of the saddle except for the plug body. SOLUTION: In repair work, the damaged part A of a piping P1 is temporarily repaired by a tape and the like, endless gas joints (a) are connected to the upstream and downstream sides of the piping P1 positioned near to the damaged part A, a passing hole is opened in the pipe wall of the piping P1 , and the endless gas joints (a), (a) are connected to each other by a bypass piping P2 . A fluid flow in a pipe is shut out by an air bag and the like inserted in the piping P1 , the bypass piping P2 is removed after the damaged part A is repaired, a plug 1 is brought into contact with the peripheral surface of the piping P1 , a plug body 12 is inserted in the passing hole, and a seal ring 2 is brought into pressure contact with the circumferential wall of the passing hole. When a heating wire 3 is heated, the fitting surface of the plug 1 and the peripheral surface of the piping P1 are simultaneously molten and connected to each other. Fluid in the pipe may not be leaked even though the seal ring 2 is tightly stuck to the circumferential wall of the passing hole so as to secure sealed properties and deposition connection is not sufficient.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、ガス等の配管ライ
ンの一部が破損したとき、該破損箇所を補修する際に使
用する補修用電気融着プラグに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair electric fusion plug used for repairing a damaged part of a pipeline such as gas when the part is damaged.

【０００２】[0002]

【従来の技術】従来からポリエチレン等からなるガス用
の配管ラインでは、配管の一部が破損して管内流体の漏
洩事故が発生したとき、管内流体の流れを遮断すること
なく破損箇所を補修することが行なわれている。この補
修工法を図２〜図７に基づいて簡単に説明すると、次の
通りである。2. Description of the Related Art Conventionally, in a gas piping line made of polyethylene or the like, when a part of the piping is damaged and a fluid leakage accident occurs in the piping, the damaged portion is repaired without interrupting the flow of the fluid in the piping. Is being done. This repairing method will be briefly described below with reference to FIGS. 2 to 7.

【０００３】まず、図２に示した如く配管Ｐ1 の破損箇
所Ａにテープ等を巻回し、ガス等の管内流体の噴出を一
時的に遮断する。そこで、図３に示した如く破損箇所Ａ
に接近した配管Ｐ1 の上流側と下流側に不断ガス継手ａ
を接続し、それぞれの不断ガス継手ａにカッターを挿入
して管壁に貫通孔を穿設してからそれぞれの不断ガス継
手ａ，ａ同志をバイパス配管Ｐ2 で接続する。First, as shown in FIG. 2, a tape or the like is wound around the damaged portion A of the pipe P1 to temporarily interrupt the ejection of the fluid in the pipe such as gas. Therefore, as shown in FIG.
Gas pipe a on the upstream side and the downstream side of the pipe P1 close to
Are connected to each other, and a cutter is inserted into each of the uninterrupted gas joints a to form a through hole in the pipe wall, and then each of the uninterrupted gas joints a and a is connected by a bypass pipe P2.

【０００４】次に、図４に示した如く破損箇所の上流側
と下流側をスクイズｃするか、又は図５に半断面図で示
した如く配管Ｐ1 内に挿入したエアーバックｂを膨らま
せて管内流体の流れを遮断する。すると、ガス等の管内
流体はバイパス配管Ｐ2 を流れるので、図４に示した如
く配管Ｐ1 の破損箇所を所定長さに亘って切除し、該切
除した部分に短管Ｐ3 を介在させて該短管Ｐ3 と配管Ｐ
1 の切除した端部とを管継手ｄを介して接続する。この
様にして、破損箇所Ａの補修を行ってからバイパス配管
Ｐ2 を除去し、図６及び７に示した如く配管Ｐ1 に設け
られた貫通孔を中栓ｅで閉塞すると共に、該中栓ｅをサ
ドル部材ｆで覆っていた。Next, as shown in FIG. 4, squeeze the upstream and downstream sides of the damaged portion, or inflate the air bag b inserted into the pipe P1 as shown in the half sectional view of FIG. Cut off the fluid flow. Then, since the fluid in the pipe such as gas flows through the bypass pipe P2, the broken portion of the pipe P1 is cut off for a predetermined length as shown in FIG. 4, and the short pipe P3 is interposed in the cut portion to make the short pipe P3. Pipe P3 and pipe P
The cut end of 1 is connected via a pipe joint d. In this way, after repairing the damaged portion A, the bypass pipe P2 is removed, the through hole provided in the pipe P1 is closed by the inner plug e as shown in FIGS. Was covered with a saddle member f.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、この従
来工法の場合には、配管Ｐ1 に設けられた貫通孔を中栓
ｅで閉塞してから更に中栓ｅをサドル部材ｆで覆い、該
サドル部材ｆの接合面に埋設した電熱線に通電して発熱
させなければならないため、施工現場での補修工事に手
間がかかることがあった。本発明はかかる課題を解決し
たものであって、施工現場での補修工事が簡単に行なえ
る補修用電気融着プラグを提供するものである。However, in the case of this conventional method, the through hole provided in the pipe P1 is closed by the inner plug e, and the inner plug e is further covered with the saddle member f, Since the heating wire buried in the joint surface of f must be energized to generate heat, repair work at the construction site may be troublesome. The present invention solves such a problem and provides an electric fusion-bonding plug for repair, which enables easy repair work at a construction site.

【０００６】[0006]

【課題を解決するための手段】本発明の補修用電気融着
プラグは、所定の曲率で湾曲した合成樹脂製サドルの接
合面のほぼ中央に栓体を突設すると共に、該栓体を除く
サドルの接合面に電熱線を埋設したことを特徴とする。According to the electric fusion plug for repair of the present invention, a plug body is provided substantially at the center of the joint surface of a synthetic resin saddle curved with a predetermined curvature, and the plug body is removed. It is characterized in that a heating wire was embedded in the joint surface of the saddle.

【０００７】[0007]

【発明の実施の形態】以下、本発明の実施の形態を図面
にて詳細に説明する。図１は本発明の補修用電気融着プ
ラグを用いて貫通孔を閉塞した状態の断面図であって、
図中の符号１は補修用電気融着プラグである。プラグ１
はポリエチレン、ポリブテン等の合成樹脂からなるサド
ル１１を配管Ｐ1 の外周面とほぼ等しい曲率に湾曲させ
ると共に、その湾曲した接合面のほぼ中央に栓体１２を
突設したものであって、該栓体１２の外周面に形成した
環状溝１３にはシールリング２が装着されている。一
方、栓体１２を除くサドル１１の接合面には電熱線３が
渦巻状に所定間隔で埋設されており、該電熱線３の両端
がサドル１１の上面に突設した端子ピン４と接続してい
る。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a state in which a through hole is closed using the repair electric fusion plug of the present invention,
Reference numeral 1 in the drawing is an electric fusion plug for repair. Plug 1
Is a saddle 11 made of a synthetic resin such as polyethylene or polybutene, which is curved to have a curvature substantially equal to that of the outer peripheral surface of the pipe P1, and a plug 12 is provided at the center of the curved joint surface. The seal ring 2 is attached to the annular groove 13 formed on the outer peripheral surface of the body 12. On the other hand, on the joint surface of the saddle 11 excluding the plug body 12, the heating wire 3 is embedded in a spiral shape at predetermined intervals, and both ends of the heating wire 3 are connected to the terminal pins 4 projecting on the upper surface of the saddle 11. ing.

【０００８】この補修用電気融着プラグ１を用いて配管
１ａの補修工事を行なう手順を説明する。図２に示した
如く、まず配管Ｐ1 の破損箇所にテープ等を巻回して仮
補修を行なう。次に、図３に示した如く破損箇所に接近
した配管Ｐ1 の上流側と下流側に不断ガス継手ａを接続
し、該不断ガス継手ａにカッター装置を挿入して配管Ｐ
1 の管壁に貫通孔を穿設してからそれぞれの不断ガス継
手ａ，ａ同志をバイパス配管Ｐ2 で接続する。A procedure for repairing the pipe 1a using the repair electric fusion plug 1 will be described. As shown in FIG. 2, first, a tape or the like is wound around the damaged portion of the pipe P1 for temporary repair. Next, as shown in FIG. 3, the continuous gas joint a is connected to the upstream side and the downstream side of the pipe P1 which is close to the damaged portion, and the cutter device is inserted into the continuous gas joint a to connect the pipe P1.
After forming a through hole in the pipe wall of No. 1, each of the uninterrupted gas joints a and a is connected by a bypass pipe P2.

【０００９】次に、図４に示した如く補修箇所の上流側
と下流側をスクイズｃするか、又は図５に示した如く配
管Ｐ1 内に挿入したエアーバックｂを膨らませて管内流
体の流れを遮断する。そこで、破損箇所Ａを所定長さに
亘って切除してからこの切除した部分に短管Ｐ3 を介在
させ、該短管Ｐ3 と配管Ｐ1 の切除した端部とを管継手
ｄを介して接続する。Next, as shown in FIG. 4, the upstream side and the downstream side of the repaired portion are squeezed, or the air bag b inserted into the pipe P1 is inflated as shown in FIG. Cut off. Therefore, the broken portion A is cut for a predetermined length, and then the short pipe P3 is interposed in the cut portion, and the short pipe P3 and the cut end of the pipe P1 are connected via a pipe joint d. .

【００１０】この様に従来工法と同様の手順を経て破損
箇所Ａの補修を行ってからバイパス配管Ｐ2 を除去し、
図１に示した如く配管Ｐ1 の外周面に本発明の補修用電
気融着プラグ１をあてがい、栓体１２を貫通孔に挿入し
てシールリング２を貫通孔の周壁に圧接させる。そこ
で、端子ピン４に電源を接続して電熱線３を発熱させる
と、プラグ１の接合面と配管Ｐ1 の外周面とが同時に溶
融して一体的に融着接合する。かくして、補修工事が終
了するが、栓体１２に装着したシールリング２が貫通孔
の周壁に密着してシール性が確保されるため、電熱線に
よる融着接合が不十分であっても管内流体が漏洩するこ
とはない。In this way, after repairing the damaged portion A through the same procedure as the conventional method, the bypass pipe P2 is removed,
As shown in FIG. 1, the repair electric fusion plug 1 of the present invention is applied to the outer peripheral surface of the pipe P1, the plug 12 is inserted into the through hole, and the seal ring 2 is pressed against the peripheral wall of the through hole. Therefore, when a power source is connected to the terminal pin 4 to heat the heating wire 3, the joint surface of the plug 1 and the outer peripheral surface of the pipe P1 are simultaneously melted and integrally fused and bonded. Thus, although the repair work is completed, the seal ring 2 attached to the plug body 12 is in close contact with the peripheral wall of the through hole to ensure the sealing property, so that even if the fusion bonding by the heating wire is insufficient, the pipe fluid Never leaks.

【００１１】[0011]

【発明の効果】以上詳述した如く、本発明は、所定の曲
率で湾曲した合成樹脂製サドルの接合面のほぼ中央に栓
体を突設すると共に、該栓体を除くサドルの接合面に電
熱線を埋設したので、施工現場での補修作業が簡単に行
なえる。即ち、配管の外周面に本発明の補修用電気融着
プラグをあてがい、栓体を貫通孔に挿入して貫通孔を閉
塞してから、端子ピンに電源を接続して電熱線を発熱さ
せるだけで補修作業が簡単に行なえると共に、補修作業
の際に配管に設けた貫通孔から管内流体が漏洩する虞れ
もない。As described above in detail, according to the present invention, the plug is provided at the center of the joint surface of the synthetic resin saddle curved with a predetermined curvature, and the joint surface of the saddle excluding the stopper is provided. Since the heating wire is buried, repair work at the construction site can be performed easily. That is, the repair electric fusion plug of the present invention is applied to the outer peripheral surface of the pipe, the plug is inserted into the through hole to close the through hole, and then the power supply is connected to the terminal pin to heat the heating wire. Therefore, the repair work can be easily performed, and there is no fear that the fluid in the pipe will leak from the through hole provided in the pipe during the repair work.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１は本発明の補修用電気融着プラグを用いて
貫通孔を閉塞した状態の断面図である。FIG. 1 is a cross-sectional view of a state in which a through hole is closed by using the repair electric fusion plug of the present invention.

【図２】図２は配管の破損箇所にテープ等を巻回して仮
補修した状態を示す正面図である。FIG. 2 is a front view showing a state in which a tape or the like is wound around a damaged portion of the pipe for temporary repair.

【図３】図３は破損箇所の上流側と下流側に接続した不
断ガス継手同志をバイパス配管で接続した状態を示す正
面図である。FIG. 3 is a front view showing a state in which the uninterrupted gas couplings connected to the upstream side and the downstream side of the damaged portion are connected by a bypass pipe.

【図４】図４は破損箇所に介在させた短管と配管の端部
とを管継手を介して接続する状態の正面図である。FIG. 4 is a front view of a state in which a short pipe interposed at a damaged portion and an end of a pipe are connected via a pipe joint.

【図５】図５は配管内にエアーバックを挿入して膨らま
せた状態を示す半断面正面図である。FIG. 5 is a front view of a half cross section showing a state where an air bag is inserted into a pipe and inflated.

【図６】図６は貫通孔を中栓とサドル部材とで気密に閉
塞した状態を示す従来例の半断面正面図である。FIG. 6 is a half cross-sectional front view of a conventional example showing a state in which a through hole is airtightly closed by an inner plug and a saddle member.

【図７】図７は補修が完了した状態の従来例を示す正面
図である。FIG. 7 is a front view showing a conventional example in a state where repair is completed.

【符号の説明】[Explanation of symbols]

１ 補修用電気融着プラグ ２ シールリング ３ 電熱線 １１ サドル １２ 栓体 Ｐ1 配管 Ｐ2 バイパス配管 Ｐ3 短管 1 Electric fusion plug for repair 2 Seal ring 3 Heating wire 11 Saddle 12 Plug P1 pipe P2 Bypass pipe P3 Short pipe

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 所定の曲率で湾曲した合成樹脂製サドル
の接合面のほぼ中央に栓体を突設すると共に、該栓体を
除くサドルの接合面に電熱線を埋設したことを特徴とす
る補修用電気融着プラグ。1. A plug body is provided at a substantially central portion of a joint surface of a synthetic resin saddle curved with a predetermined curvature, and a heating wire is embedded in the joint surface of the saddle excluding the plug body. Electric fusion plug for repair.
JP8142484A 1996-06-05 1996-06-05 Electrodeposition plug for repair Pending JPH09324888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8142484A JPH09324888A (en) 1996-06-05 1996-06-05 Electrodeposition plug for repair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8142484A JPH09324888A (en) 1996-06-05 1996-06-05 Electrodeposition plug for repair

Publications (1)

Publication Number Publication Date
JPH09324888A true JPH09324888A (en) 1997-12-16

Family

ID=15316403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8142484A Pending JPH09324888A (en) 1996-06-05 1996-06-05 Electrodeposition plug for repair

Country Status (1)

Country Link
JP (1) JPH09324888A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147308A (en) * 2005-11-24 2007-06-14 Nippon Steel Engineering Co Ltd Leak test method
CN107839260A (en) * 2017-10-25 2018-03-27 南京航空航天大学 The injury repair technique and its device of the super hybrid composite manner laminate of fibre reinforced thermoplasticity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147308A (en) * 2005-11-24 2007-06-14 Nippon Steel Engineering Co Ltd Leak test method
CN107839260A (en) * 2017-10-25 2018-03-27 南京航空航天大学 The injury repair technique and its device of the super hybrid composite manner laminate of fibre reinforced thermoplasticity

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