JPH01255794A - Pipeline blocking device - Google Patents

Pipeline blocking device

Info

Publication number
JPH01255794A
JPH01255794A JP63081684A JP8168488A JPH01255794A JP H01255794 A JPH01255794 A JP H01255794A JP 63081684 A JP63081684 A JP 63081684A JP 8168488 A JP8168488 A JP 8168488A JP H01255794 A JPH01255794 A JP H01255794A
Authority
JP
Japan
Prior art keywords
balloon
hose
tip
tube
backup member
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
Application number
JP63081684A
Other languages
Japanese (ja)
Other versions
JPH0348399B2 (en
Inventor
Takashi Kurioka
栗岡 隆志
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.)
DAIKI KOGYO KK
Original Assignee
DAIKI KOGYO KK
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 DAIKI KOGYO KK filed Critical DAIKI KOGYO KK
Priority to JP63081684A priority Critical patent/JPH01255794A/en
Publication of JPH01255794A publication Critical patent/JPH01255794A/en
Publication of JPH0348399B2 publication Critical patent/JPH0348399B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE:To make it possible to easily block even the deep part of a meandering piping by firmly attaching a balloon to the tip of a hose through a bellows party and providing a backup member made of a rubber elastic body so as to cover the outside of the balloon. CONSTITUTION:In a pipeline blocking device A, a hose 1 consists of a synthetic resin tube 2 and a spiral tube 3. On the outer periphery of the tip of the tube 2, a thin rubber balloon 4 is airtightly bound with adhesive. A rubber backup member 6 is fixed on the tip of the spiral tube 3, and a bell-shaped head member 9 having an opening in its tip is provided in succession to a root member 7.

Description

【発明の詳細な説明】 「産業上の利用分野] 本発明は管路遮断具に関する。さらに詳しくは、ガソリ
ンスタンドの地下燃料タンクのガス洩れテストにおいて
タンクの出口を密閉するためなどに用いられる管路遮断
具に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pipe line interrupter.More specifically, the present invention relates to a pipe line interrupter used for sealing the outlet of a tank in a gas leak test of an underground fuel tank at a gas station. Regarding road blocking equipment.

[従来の技術] 従来はこの種の管路遮断具は知られていない。[Conventional technology] Conventionally, this type of pipe interrupter has not been known.

すなわち地下タンクの出口から地上へ至る管路は通常臼
がりくねっており、そのような管路を通ってタンクの出
口を密閉する器具はいまだ知られていない。したがって
タンクが一旦地下に埋設されると、たとえば地上に出て
いる配管部分で密閉するなどにより、間接的にタンクの
出口を密閉することしかできない。
That is, the conduit leading from the outlet of an underground tank to above ground is usually winding, and there is still no known device for sealing the outlet of the tank through such a conduit. Therefore, once a tank is buried underground, it is only possible to indirectly seal the outlet of the tank, for example by sealing the piping that extends above ground.

[発明が解決しようとする課題] 本発明は前述のような地下タンクのガス洩れテストなど
においてタンクの出口近辺の配管を遮断するときに用い
られる、曲がりくねった配管の奥の方でも簡単な操作で
確実に遮断しうる器具を提供することを目的としている
[Problems to be Solved by the Invention] The present invention is used to shut off piping near the outlet of a tank in the above-mentioned underground tank gas leak test, etc., and can be easily operated even deep in winding piping. The purpose is to provide a device that can reliably shut off the problem.

[課題を解決するための手段] 本発明の管路遮断具は、V+J撓性を有するホースと、
該ホースの先端にジャバラ部を介して同行される風船と
、譲風船の外側を覆うように設けられ、ホースの先端に
固着される根元部と、左端に開口部を釘し、風船の膨張
に伴なって外径が膨大して管壁に当接する頭部とを備え
たゴム状弾性体からなるバックアップメンバとから構成
される。
[Means for Solving the Problems] The conduit interrupter of the present invention includes a hose having V+J flexibility,
A balloon is attached to the tip of the hose via a bellows, a root portion is provided to cover the outside of the balloon and is fixed to the tip of the hose, and an opening is nailed to the left end to allow the balloon to expand. It is constructed from a backup member made of a rubber-like elastic body, and a head whose outer diameter increases and comes into contact with the pipe wall.

前記ホースは気密性を4するチューブと、そのチューブ
の外周に設けられる螺旋管とから構成するのが好ましい
Preferably, the hose is composed of a tube having airtightness and a spiral tube provided around the outer circumference of the tube.

[作 用] ホースに空気などのガスを入れていないときは風船がし
ぼんでおり、ジャバラ部も縮んでいる。そのため風船全
体がバックアップメンバ内に収容され、保護されている
[Function] When the hose is not filled with air or other gas, the balloon is deflated and the bellows are also deflated. Therefore, the entire balloon is contained and protected within the backup member.

その状態でホースを先端から順次地下タンクなどの配管
内に送り込んでいくと、ホースは配管の曲がりくねった
管路に沿って進んでいく。
In this state, when the hose is fed into a pipe such as an underground tank one by one starting from the tip, the hose moves along the winding path of the pipe.

ホースの先端がタンクの出口などの目的とする位置に達
したときにホースを通じて風船に空気を送り込むと、風
船がいくらかふくらみ、さらにジャバラ部が伸びて風船
の一部がバックアップメンバの開口部から突出する。さ
らに空気を送り込むとバックアップメンバから出ている
部分がふくらんで管壁と密接し、管路が遮断される。
When the end of the hose reaches the desired location, such as the outlet of the tank, air is sent into the balloon through the hose, causing the balloon to inflate somewhat and the bellows to extend, causing a portion of the balloon to protrude from the opening of the backup member. do. When more air is pumped in, the part coming out of the backup member swells and comes into close contact with the pipe wall, cutting off the pipe line.

そのとき風船のバックアップメンバ内の部分は、風船が
ふくらむため、およびジャバラの伸縮作用により、バッ
クアップメンバに密に押しつけられてバックアップメン
バによって支えられる。またそれと共にノ<、ツクアッ
プメンバの頭部が風船によって拡げられ、管壁と強く当
接する。したがって風船は配管内の圧力によって後方に
押し戻されることなく膨張し、風船と管壁の密接部分で
確実に管路を遮断することができる。
At this time, the portion of the balloon inside the backup member is tightly pressed against the backup member and supported by the backup member due to the expansion of the balloon and the expansion and contraction action of the bellows. At the same time, the head of the pull-up member is expanded by the balloon and comes into strong contact with the pipe wall. Therefore, the balloon expands without being pushed back by the pressure inside the pipe, and the pipe can be reliably blocked by the close contact between the balloon and the pipe wall.

[実施例] つぎに図面を参照しながら本発明の管路遮断具を説明す
る。
[Example] Next, the conduit interrupter of the present invention will be described with reference to the drawings.

第1図は本発明の管路遮断具の一実施例を示す要部断面
図、第2図は第1図に示す遮断具の使用状態を示す要部
断面図、第3図は本発明の遮断具の使用例を示す説明図
である。
FIG. 1 is a cross-sectional view of a main part showing an embodiment of the pipe line interrupter of the present invention, FIG. 2 is a cross-sectional view of a main part showing the state of use of the interrupter shown in FIG. It is an explanatory view showing an example of use of a blocker.

第1図に示される管路遮断具部ではホース(1)か合成
樹脂製のチューブ(2)とそのチューブ(2)の外周に
設けられる螺旋管(3)とから構成される。
The conduit interrupter shown in FIG. 1 is composed of a hose (1) or a tube (2) made of synthetic resin and a spiral tube (3) provided around the outer periphery of the tube (2).

千ユーブ(2)は気密性を何し、さらに可撓性および弾
力性があるので曲げられてもただちに回復する。また螺
旋管(3)は金属または合成樹脂などの線材を螺旋状に
成形したものであり、このものも適切な可撓性および弾
力性を有する。螺旋管(3)はチューブ(2)を保護す
るものであり、通常はチューブ(2)と螺旋管(3)と
の間には隙間がある。
Chiyubu (2) is not only airtight, but also has flexibility and elasticity, so even if it is bent, it quickly recovers. Further, the spiral tube (3) is formed by spirally molding a wire material such as metal or synthetic resin, and this tube also has appropriate flexibility and elasticity. The spiral tube (3) protects the tube (2), and there is usually a gap between the tube (2) and the spiral tube (3).

しかしホース(1)の先端部近辺では必要に応じてその
隙間および螺旋管の線材同士の隙間をシールしてもよい
However, in the vicinity of the distal end of the hose (1), the gap therebetween and the gap between the wire rods of the spiral tube may be sealed if necessary.

チューブ(2)の先端の外周には薄いゴムからなる風船
(4)が接着剤などで気密に固着されている。
A balloon (4) made of thin rubber is airtightly fixed to the outer periphery of the tip of the tube (2) with adhesive or the like.

風船(4)の根元部にはジャバラ部(5)が形成されて
いる。ジャバラ部(5)は通常は風船(4)と一体であ
るが、別体であってもよい。
A bellows part (5) is formed at the base of the balloon (4). The bellows (5) is usually integrated with the balloon (4), but may be separate.

螺旋管(3)の先端にはゴム製のバックアップメンバ(
6)がたとえばカシメリング(6a)などで固着されて
いる。バックアップメンバ(6)の根元部(7)はほぼ
円筒状であり、根元部(7)に続いて先゛端に開口部(
8)を有する釣鐘状の頭部(9)が設けられている。頭
部(9)の先端、すなわち開口部(8)の周縁にはリッ
プ部(財)が形成されている。頭部(9)は後述するよ
うに7、風船(4)がふくらむときに−緒に拡がり、風
船がしぼむと元の形状になる程度の柔軟性および弾力性
を有するものであればよく、ゴム以外に軟質の合成樹脂
などからも形成しうる。なお必要に応じてリップ部(至
)の近辺に、頭部(9)の膨張を容易にするための軸方
向のスリットを形成してもよい。
A rubber backup member (
6) is fixed with, for example, a caulking ring (6a). The root portion (7) of the backup member (6) is approximately cylindrical and has an opening (7) at the tip following the root portion (7).
A bell-shaped head (9) having a diameter of 8) is provided. A lip portion is formed at the tip of the head (9), that is, at the periphery of the opening (8). The head (9) may be made of rubber as long as it has flexibility and elasticity to the extent that it expands when the balloon (4) is inflated and returns to its original shape when the balloon is deflated, as will be described later. In addition, it can also be formed from soft synthetic resin. If necessary, an axial slit may be formed in the vicinity of the lip (to) to facilitate expansion of the head (9).

なお第1図の(Plは遮1析しようとする管路の管体で
あり、前記ホース(1)、風船(4)およびバックアッ
プメンバ(6)の頭部(9)は管体(P)の内径に応じ
てその大きさが定められる。たとえば内径20〜25m
a+の管体のばあいは頭部の外径はそれより2〜3ml
11程度小さくする。
In Fig. 1, (Pl is the pipe body of the pipeline to be analyzed), and the head (9) of the hose (1), balloon (4) and backup member (6) is the pipe body (P). Its size is determined according to the inner diameter of the
In the case of a+ tube body, the outer diameter of the head is 2 to 3 ml larger than that.
Make it smaller by about 11.

斜上のごとく構成される管路遮断県人の使用方法および
作用を第3図に示すような地下タンク(刀のガス洩れテ
ストのばあいを例にあげて以下に説明する。しかし本発
明の遮断具の用途はもとよりかかるばあいに限定される
ものではなく、種々の配管工事に用いることができる。
The method of use and operation of the pipe cutter, which is constructed like a diagonal structure, will be explained below by taking as an example the case of an underground tank (sword gas leak test) as shown in Fig. 3. The use of the interrupter is not limited to such cases, but can be used for various piping works.

第3図に示すように遮断県人はまず先端部から配管01
1の地上側の開口端(121を通して順次送り込まれる
。そのとき配管口)のエルボ部(13)ではホース(1
)が彎曲するが、螺旋管(第1図の(3))の弾力性で
エルボ部(13]を通過すればただちに直線状に復元す
る。またチューブ(2)は螺旋管(3)によって保護さ
れているのでエルボ部(13)でもつぶれることがない
As shown in Figure 3, the prefectural personnel first cut off the pipe 01 from the tip.
At the elbow part (13) of the ground side open end (121) of the hose (121),
) is curved, but due to the elasticity of the helical tube ((3) in Figure 1), it immediately returns to its straight shape after passing through the elbow (13).The tube (2) is protected by the helical tube (3). , so even the elbow part (13) will not be crushed.

風船(4)は第1図に示すようにバックアップメンバ(
5)内でしぼんでいるので配管01)の内壁と摺接せず
、安全に配管O1)内を通過する。
The balloon (4) is attached to the backup member (
5), so it does not come into sliding contact with the inner wall of the pipe 01) and passes safely through the pipe 01).

風船(4)などがタンク(nの出口部圏の近辺に達した
とき、配管01)の地上側の開口端02)がキャップ0
■およびパツキン07)によってシールされ、ついて枝
管Oaから窒素ガスなどのガス洩れテスト用のガスが、
たとえば0.2kgr/cut (ゲージ圧)程度の圧
力でタンク(7)内に充填される。
When the balloon (4) etc. reaches the vicinity of the outlet area of the tank (n), the opening end 02) on the ground side of the pipe 01) is closed to the cap 0.
■ and gas seal 07), and gas for gas leak test such as nitrogen gas is supplied from the branch pipe Oa.
For example, the tank (7) is filled with a pressure of about 0.2 kgr/cut (gauge pressure).

その後ホース(1)を通じて風船(4)内に空気が送り
込まれる。
Air is then pumped into the balloon (4) through the hose (1).

空気が送り込まれると第2図に示すように風船(4)が
膨張すると共にジャバラ部(5)が伸びる。
When air is introduced, the balloon (4) expands and the bellows (5) expands as shown in FIG.

そのため風船(4)の一部はバックアップメンバ(6)
の開口部(8)から外部に突出し、その状態で風船(4
)がさらに膨張する。それにより風船(4)のバックア
ップメンバ(6)から出ている部分が管体(P)の内壁
と密に当接して管路を確実に遮断する。
Therefore, part of the balloon (4) is a backup member (6)
The balloon (4) protrudes outward from the opening (8) of the balloon (4).
) expands further. As a result, the portion of the balloon (4) protruding from the backup member (6) comes into close contact with the inner wall of the pipe (P) to reliably block the pipe.

その後は窒素ガスなどの送り込みが停止されてタンク(
1)は所定の測定圧力に維持される。そのとき第2図に
示すように管体(Plのタンク側には圧力がかかってい
るので風船(4)が矢印(Q1方向に押圧される。しか
し風船(4)はジャバラ部(5)の伸縮性に基づきバッ
クアップメンバ(6)に密告した状態で支持されており
、しかもバックアップメンバ(6)の頭部(9)は風船
(4)によって半径方向外側に拡げられてリップ部00
などで管体(P)の内壁と強く当接する。そのため風船
(4)がタンク内の圧力で変形したり、バックアップメ
ンバ(6)と共に矢印(Q)方向にずれることが防止さ
れる。
After that, the supply of nitrogen gas etc. is stopped and the tank (
1) is maintained at a predetermined measuring pressure. At that time, as shown in Figure 2, pressure is applied to the tank side of the tube (Pl), so the balloon (4) is pushed in the direction of the arrow (Q1). Due to its elasticity, it is supported in close contact with the backup member (6), and the head (9) of the backup member (6) is expanded radially outward by the balloon (4) to form the lip portion 00.
etc., to make strong contact with the inner wall of the tube (P). Therefore, the balloon (4) is prevented from being deformed by the pressure inside the tank and from shifting in the direction of the arrow (Q) together with the backup member (6).

なおホース(1)の螺旋管(3)の剛性が大きいばあい
は、バックアップメンバ(6)は螺旋管(3)によって
もサポートされうる。
Note that if the helical tube (3) of the hose (1) has high rigidity, the backup member (6) may also be supported by the helical tube (3).

斜上のごとく風船(4)とバックアップメンバ(6)と
はたがいに協働して、圧力ガスに押し戻されないよう管
壁に固定される。
The balloon (4) and the backup member (6) cooperate with each other in a diagonal manner and are fixed to the pipe wall so as not to be pushed back by the pressure gas.

ガス洩れテストがたとえば半日から数日にかけて行なわ
れた後、風船(4)内の空気がホース(1)を通して抜
かれると、風船(4)が収縮して管路の遮断が解除され
る。またそのときジャバラ部(5)が縮むので風船(4
)はバックアップメンバ(6)内に収容され、バックア
ップメンバ(6)の頭部(9)も収縮し、第1図に示さ
れる状態に戻る。
After the gas leak test has been carried out for, for example, half a day to several days, when the air inside the balloon (4) is removed through the hose (1), the balloon (4) is deflated and the blockage of the pipe line is released. Also, at that time, the bellows part (5) contracts, so the balloon (4)
) is housed in the backup member (6), and the head (9) of the backup member (6) also retracts and returns to the state shown in FIG.

ついでホース(1)を配管(II)から引き抜いて作業
が完了する。
Then, the hose (1) is pulled out from the pipe (II) to complete the work.

[発明の効果] 本発明の管路遮断具は曲がりくねった配管の奥の方でも
、簡単な操作で確実に遮断することかできる。そのため
たとえばガス洩れテストのために地下タンクの出口を閉
止するばあいなどに好適に用いられる。
[Effects of the Invention] The pipe line interrupter of the present invention can reliably interrupt even deep pipes with a simple operation. Therefore, it is suitably used, for example, when closing the outlet of an underground tank for gas leak testing.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の管路遮断具の一実施例を示す要部断面
図、第2しは第1図に示す管路遮断具の使用状態を示す
要部断面図、第3図は本発明の管路遮断具の使用例を示
す説明図である。 (図面の主要符号) (1):ホース (4):風 船 (5):ジャバラ部 (6):バックアップメンバ (7):開口部 (9):頭 部 第1 図 第3口
FIG. 1 is a cross-sectional view of the main part showing one embodiment of the pipe line interrupter of the present invention, FIG. It is an explanatory view showing an example of use of the conduit interrupter of the invention. (Main symbols in the drawing) (1): Hose (4): Balloon (5): Bellows (6): Backup member (7): Opening (9): Head No. 1 Figure 3 Port

Claims (1)

【特許請求の範囲】 1 可撓性を有するホースと、 該ホースの先端にジャバラ部を介して固着される風船と
、 該風船の外側を覆うように設けられ、ホースの先端に固
着される根元部と、先端に開口部を有し、風船の膨張に
伴なって外径が膨大して管壁に当接する頭部とを備えた
ゴム状弾性体からなるバックアップメンバ とからなる管路遮断具。 2 前記ホースが気密性を有するチューブと、該チュー
ブの外周に設けられる螺旋管とからなる請求項1記載の
管路遮断具。
[Scope of Claims] 1. A flexible hose, a balloon fixed to the tip of the hose via a bellows, and a base provided to cover the outside of the balloon and fixed to the tip of the hose. and a back-up member made of a rubber-like elastic body having an opening at the tip and a head whose outer diameter expands as the balloon expands and comes into contact with the pipe wall. . 2. The conduit interrupter according to claim 1, wherein the hose comprises an airtight tube and a spiral tube provided on the outer periphery of the tube.
JP63081684A 1988-04-01 1988-04-01 Pipeline blocking device Granted JPH01255794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63081684A JPH01255794A (en) 1988-04-01 1988-04-01 Pipeline blocking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63081684A JPH01255794A (en) 1988-04-01 1988-04-01 Pipeline blocking device

Publications (2)

Publication Number Publication Date
JPH01255794A true JPH01255794A (en) 1989-10-12
JPH0348399B2 JPH0348399B2 (en) 1991-07-24

Family

ID=13753182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63081684A Granted JPH01255794A (en) 1988-04-01 1988-04-01 Pipeline blocking device

Country Status (1)

Country Link
JP (1) JPH01255794A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015183857A (en) * 2014-03-25 2015-10-22 キム ヨンスYong Soo, KIM Piping blockage treatment equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432993U (en) * 1987-08-24 1989-03-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432993U (en) * 1987-08-24 1989-03-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015183857A (en) * 2014-03-25 2015-10-22 キム ヨンスYong Soo, KIM Piping blockage treatment equipment

Also Published As

Publication number Publication date
JPH0348399B2 (en) 1991-07-24

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