JPH0225038Y2 - - Google Patents
Info
- Publication number
- JPH0225038Y2 JPH0225038Y2 JP1984154090U JP15409084U JPH0225038Y2 JP H0225038 Y2 JPH0225038 Y2 JP H0225038Y2 JP 1984154090 U JP1984154090 U JP 1984154090U JP 15409084 U JP15409084 U JP 15409084U JP H0225038 Y2 JPH0225038 Y2 JP H0225038Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cut
- gas
- pressure
- gas pipe
- 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
Links
- 229920003051 synthetic elastomer Polymers 0.000 claims description 12
- 239000005061 synthetic rubber Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 238000002788 crimping Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- DNHVXYDGZKWYNU-UHFFFAOYSA-N lead;hydrate Chemical compound O.[Pb] DNHVXYDGZKWYNU-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、ガス管、水道管などの地下敷設配管
等において、例えば火災あるいはガス漏れ事故な
どが発生した際に管内を流れるガス等の流通を止
めるべく加工される配管の遮断部構造に関するも
のである。[Detailed description of the invention] [Field of industrial application] This invention is intended for use in underground piping such as gas pipes and water pipes, for example, in the event of a fire or gas leak accident, the distribution of gas, etc. that flows through the pipes. This relates to the structure of the shutoff part of piping that is processed to stop the flow.
従来、この種の配管の遮断部構造として知られ
ているものは、例えば実公昭51−14160号公報あ
るいは実開昭55−61690号公報等にみられるごと
く、配管を直径方向に押潰して扁平に挟圧閉塞す
る構造のものである。
Conventionally, this type of piping cutoff structure has been known as a structure in which the piping is flattened by crushing it in the diametrical direction, as seen in, for example, Japanese Utility Model Publication No. 51-14160 or Japanese Utility Model Application Publication No. 55-61690. The structure is such that it can be closed under pressure.
このような構造のものでは、比較的軟質材料か
らなる水道鉛管の場合には所望の断水効果が得ら
れても、鋼管製のガス管の場合、管体が塑性変形
しにくいことから管の完全な押潰しは期待し難い
ばかりでなく、特に管内には内面に塵埃等が付着
したり、また錆が発生している場合も多くあり、
これらの夾雑物によつて管内面の密着性が不完全
となりやすいことから、液体（ガス）の遮断効果
が不確実であつた。
With this kind of structure, even if the desired water cutoff effect can be obtained in the case of water lead pipes made of relatively soft materials, in the case of gas pipes made of steel pipes, the pipe body is difficult to deform plastically, so the pipe cannot be completely deformed. Not only is it difficult to expect crushing, but there are also many cases where there is dust, etc. attached to the inner surface of the pipe, and there is also rust.
Since these contaminants tend to cause incomplete adhesion to the inner surface of the tube, the liquid (gas) blocking effect is uncertain.
本考案は、単に管体を扁平に押潰すのみでは上
述の理由から流体の遮断効果がどうしても不確実
なものとなる欠点に鑑み、流体の遮断効果を確実
化できるように改良された配管の遮断部構造を提
供することを目的とするものである。 In view of the drawback that simply crushing the pipe body into a flat shape results in an uncertain fluid blocking effect due to the above-mentioned reasons, the present invention has been developed to provide an improved piping blocking effect that can ensure the fluid blocking effect. The purpose is to provide a partial structure.
この目的のため本考案は、切断面から管長方向
所定長さにわたつて、複数段の波形形状で内面が
圧着されるように直径方向に押潰して閉塞部を形
成し、この閉塞部を形成した切断管端部の外側
に、密封充填剤を内装した合成ゴムキヤツプを被
着したことを要旨とする。
For this purpose, the present invention forms a closed part by diametrically crushing a predetermined length in the longitudinal direction of the pipe from the cut surface so that the inner surface is crimped in a multi-stage waveform shape. The gist is that a synthetic rubber cap containing a sealing filler is attached to the outside of the cut tube end.
上記の構成によつて、配管を流れるガス等の流
通は確実に遮断され、火災あるいはガス漏れ事故
などに対応し得る。
With the above configuration, the flow of gas, etc. flowing through the piping is reliably blocked, and it is possible to respond to a fire or a gas leakage accident.
以下、図面を参照して本考案の実施例を具体的
に説明する。
Embodiments of the present invention will be specifically described below with reference to the drawings.
第１図は配管の遮断部構造として既設のガス配
管Ａにおける遮断部構造を示し、切断面Ｂから管
長方向所定長さにわたる切断管端部には直径方向
から押潰した閉塞部Ｃが形成され、この閉塞部Ｃ
は管長方向に沿う断面が複数段の略波形をなして
管内面Ｄが相互に圧着されている。そしてこのよ
うな既設ガス配管Ａの切断管端部に、これに略沿
う内面形状の合成ゴムキヤツプＥが内部にブチル
ゴムなどの接着剤Ｆを充填して被着されることで
配管の遮断部構造が形成される。 Fig. 1 shows the structure of the cut-off part in an existing gas pipe A as a pipe cut-off part structure, in which a closed part C crushed from the diametrical direction is formed at the end of the cut pipe extending a predetermined length in the pipe length direction from the cut plane B. , this blockage C
The cross section along the pipe length direction has a substantially corrugated shape with multiple stages, and the pipe inner surfaces D are pressed together. Then, a synthetic rubber cap E having an inner surface shape that roughly follows the cut pipe end of the existing gas pipe A is filled with an adhesive F such as butyl rubber and adhered thereto, thereby creating a pipe cutoff structure. It is formed.
ここで上記した配管の遮断部構造は、例えば第
３図に示すような配管緊急遮断工具Ｇを用いて既
設ガス配管Ａの切断および圧着の管端処理が施さ
れる。 Here, the pipe cutoff structure described above is obtained by cutting the existing gas pipe A and crimping the end of the pipe by using a pipe emergency cutoff tool G as shown in FIG. 3, for example.
そこで配管緊急遮断工具Ｇについて若干説明す
ると、第３図において符号１は油圧発生機構を内
装した工具本体であり、２はこの工具本体１に対
して圧油発生の操作をなす操作ハンドル部、３は
工具本体１からの圧油の供給を受ける油圧シリン
ダ部で、この油圧シリンダ部３のピストン突出側
に配管遮断部４が構成されている。 Therefore, to briefly explain the piping emergency cutoff tool G, in Fig. 3, reference numeral 1 is a tool body that houses a hydraulic pressure generation mechanism, 2 is an operating handle portion that operates the tool body 1 to generate pressure oil, and 3 1 is a hydraulic cylinder section that receives pressure oil from the tool body 1, and a piping cutoff section 4 is formed on the piston protruding side of the hydraulic cylinder section 3.
上記工具本体１はその内部にオイル室１１、ポ
ンプ室１２、圧油室１３が区画形成され、ポンプ
室１２内に設けたプランジヤ１４の往復運動でオ
イルをオイル室１１から圧油室１３内に導き蓄圧
するようになつている。また、ポンプ室１２を迂
回して圧油室１３からオイル室１１へ通じる戻し
油路１５が形成されてあり、この戻し油路１５に
はレバー１６で操作される開閉バルブ１７が備え
られていて、これを開くと圧油の解放が行なわれ
る構成になつている。 The tool main body 1 is divided into an oil chamber 11, a pump chamber 12, and a pressure oil chamber 13. Oil is pumped from the oil chamber 11 into the pressure oil chamber 13 by the reciprocating motion of a plunger 14 provided in the pump chamber 12. It is designed to lead and accumulate pressure. Further, a return oil passage 15 is formed that bypasses the pump chamber 12 and communicates from the pressure oil chamber 13 to the oil chamber 11, and this return oil passage 15 is equipped with an on-off valve 17 that is operated by a lever 16. , when opened, the pressure oil is released.
また操作ハンドル部２は、上記工具本体１に端
部を固定して延びる主ハンドル杆２１と、加圧ハ
ンドル２２とを備え、この加圧ハンドル２２は基
端部が揺動レバー２３によつて工具本体１に枢着
されると共に、テコ作用をなす力点部が、枢支ピ
ン２４により前記プランジヤ１４の頭部に連結さ
れていて、これを揺動させることでプランジヤ１
４がポンピング運動して略700Kg／cm2の圧油を発
生できるようになつている。なお、図中符号２５
は主ハンドル杆２１および加圧ハンドル２２の端
部に装着したグリツプである。 The operating handle portion 2 also includes a main handle rod 21 extending with its end fixed to the tool body 1, and a pressure handle 22. A force point part that is pivotally attached to the tool body 1 and provides a lever effect is connected to the head of the plunger 14 by a pivot pin 24, and by swinging this, the plunger 1
4 can generate approximately 700 kg/cm 2 of pressurized oil through pumping motion. In addition, the reference numeral 25 in the figure
are grips attached to the ends of the main handle rod 21 and the pressure handle 22.
油圧シリンダ部３は、シリンダ３１の基端部外
周に抜け止め嵌着された連結リング３４を介して
工具本体１に連設固定されているもので、シリン
ダ基端部に形成される圧油受口３３が、工具本体
１の圧油室１３に連通されている。また上記シリ
ンダ３１にはその内部に有底筒状のピストン３２
が収容してあり、このピストン３２は本実施例の
場合、受圧面積が略38cm2、ストローク75mmに設定
されていて直径75mmのガス管の遮断処理に対処で
きるようにしてある。なおピストン３２は、リタ
ーンスプリング３５によつて常時は収縮すべく収
容されているものであり、このピストン３２の突
出端面には、後述する配管遮断部４の押圧体５１
を固定するためのリング溝３６を有する小径軸部
３７が突設されている。 The hydraulic cylinder part 3 is connected and fixed to the tool body 1 via a connecting ring 34 that is fitted onto the outer periphery of the base end of the cylinder 31 so as not to come off, and is connected to a pressure oil receiver formed at the base end of the cylinder. The port 33 communicates with the pressure oil chamber 13 of the tool body 1. The cylinder 31 also has a piston 32 inside which has a cylindrical shape with a bottom.
In this embodiment, the piston 32 has a pressure-receiving area of about 38 cm 2 and a stroke of 75 mm, so that it can handle the shutoff process of a gas pipe with a diameter of 75 mm. The piston 32 is housed so as to be normally contracted by a return spring 35, and a pressing body 51 of the pipe cutoff section 4, which will be described later, is attached to the protruding end surface of the piston 32.
A small diameter shaft portion 37 having a ring groove 36 for fixing is provided in a protruding manner.
配管遮断部４は、シリンダ３１の端部外周にね
じ嵌合されて固定される支持リング４１を有し、
上記支持リング４１には、第４図にも示されてい
るように円周２箇所に、ピストン３２の伸長方向
に向けて平行に延びる左右一対のアーム４２，４
２が突設されてあり、これらのアーム４２，４２
の端部には、左右のアーム４２，４２間に跨がつ
て回動アーム４３が架設されている。この回動ア
ーム４３は、その一方の端部が枢軸４４によつて
アーム４２の端部に回動可能に枢着されており、
他方の端部は抜差し可能な連結ピン４５によつて
他方のアーム４２の端部に着脱可能に固定されて
いるもので、連結ピン４５を抜くと回動アーム４
３が第４図に示されているように枢軸４４を支点
として回動し、アーム４２，４２の端部間を開放
して両アーム４２，４２間に遮断処理しようとす
るガス配管Ａが導入でき得るようにしている。な
お連結ピン４５には第４図に示されているように
クリツプピン４７が設けられていて不用意に抜け
出さないようにしている。 The piping cutoff part 4 has a support ring 41 that is screw-fitted and fixed to the outer periphery of the end of the cylinder 31,
As shown in FIG. 4, the support ring 41 has a pair of left and right arms 42, 4 extending parallel to the direction of extension of the piston 32 at two locations on the circumference.
2 are provided protrudingly, and these arms 42, 42
A rotating arm 43 is installed at the end of the rotary arm 43, spanning between the left and right arms 42, 42. The rotating arm 43 has one end pivotally attached to the end of the arm 42 by a pivot 44,
The other end is removably fixed to the end of the other arm 42 by a removable connecting pin 45, and when the connecting pin 45 is removed, the rotating arm 4
3 rotates around a pivot 44 as a fulcrum, as shown in FIG. 4, and a gas pipe A is introduced which opens the ends of the arms 42, 42 and attempts to block the two arms 42, 42. I'm trying to do what I can. As shown in FIG. 4, the connecting pin 45 is provided with a clip pin 47 to prevent it from accidentally coming out.
上記左右のアーム４２，４２と回動アーム４３
で囲まれる空間部には、この空間部に導入される
ガス配管Ａを挟んでパイプ軸線と直交する対抗位
置に、ガス配管Ａを扁平に押潰す圧着部材として
の押圧体５１と受圧体５２とが配設される。上記
押圧体５１は、前記ピストン３２の突出端面に突
設された小径軸部３７を介してピストン端面に直
接固定されているもので、小径軸部３７のリング
溝３６に止ねじ３８を嵌合することによつて抜け
止めされている（第５図参照）。また受圧体５２
は、上記押圧体５１と対抗するように回動アーム
４３の内側に一体形成されているもので、これら
押圧体５１および受圧体５２の対抗面における圧
着面５１ａ，５２ａは、それぞれ波形断面に形成
されている。そして押圧体５１は、ピストン３２
の伸縮動作によつて受圧体５２に接近、離間する
ように往復動されるもので、この往復動が円滑に
行なわれるように押圧体５１は、その長手方向の
両端部がアーム４２，４２の対向内面に形成され
たガイド溝４６，４６内に摺動自在に遊嵌されて
いる（第６図参照）。 The above left and right arms 42, 42 and rotating arm 43
In the space surrounded by , a pressing body 51 and a pressure receiving body 52, which serve as crimping members for flattening the gas pipe A, are placed at opposite positions perpendicular to the pipe axis across the gas pipe A introduced into the space. will be placed. The pressing body 51 is directly fixed to the end face of the piston 32 via a small diameter shaft portion 37 which is protruded from the projecting end face of the piston 32, and the set screw 38 is fitted into the ring groove 36 of the small diameter shaft portion 37. It is prevented from coming off by doing this (see Figure 5). In addition, the pressure receiving body 52
is integrally formed inside the rotating arm 43 so as to oppose the pressing body 51, and the crimp surfaces 51a and 52a on the opposing surfaces of the pressing body 51 and the pressure receiving body 52 are each formed in a wave-shaped cross section. has been done. The pressing body 51 is the piston 32
The pressing body 51 is reciprocated so as to approach and move away from the pressure receiving body 52 by the expansion and contraction of the arms 42 and 42. In order to smoothly perform this reciprocating movement, the pressing body 51 has both longitudinal ends attached to the arms 42 and 42. It is slidably and loosely fitted into guide grooves 46, 46 formed on the opposing inner surfaces (see FIG. 6).
また、上記押圧体５１および受圧体５２には、
その各一側面に、ガス配管Ａを切断するための切
断刃６１および受刃６２が、それぞれボルト６
３，６４によつて固定されている。上記切断刃６
１は、押圧体５１の長手方向に沿つてその側面に
併設固定されているものであり、その刃縁は、ガ
ス配管Ａが横滑りしないようにＶ字型に形成さ
れ、また刃面６１ａは押圧体５１の圧着面５１ａ
よりもその進出方向へ少なくともガス配管Ａの肉
厚の２倍以上突出して取付けられている。また受
刃６２は、その刃面６２ａが受圧体５２の圧着面
５２ａと同一平面で、受圧体５２の長手方向に沿
つてその側面に固定されているものであり、これ
らの切断刃６１および受刃６２によつてパイプ切
断部材が構成されている。 Further, the pressing body 51 and the pressure receiving body 52 include
A cutting blade 61 and a receiving blade 62 for cutting the gas pipe A are provided on each side of the bolt 6.
3,64. The above cutting blade 6
1 is fixed to the side surface of the pressing body 51 along the longitudinal direction, and its blade edge is formed in a V-shape to prevent the gas pipe A from slipping sideways, and the blade surface 61a is fixed to the side surface of the pressing body 51 in the longitudinal direction. Crimp surface 51a of body 51
It is attached so as to protrude at least twice the wall thickness of the gas pipe A in the advancing direction. Further, the receiving blade 62 has a blade surface 62a that is on the same plane as the crimp surface 52a of the pressure receiving body 52, and is fixed to the side surface of the pressure receiving body 52 along the longitudinal direction. The blade 62 constitutes a pipe cutting member.
そしてこのような配管緊急遮断工具を使用し
て、ガス漏れのあるガス配管Ａが遮断処理され
る。すなわち、回動アーム４３を第４図に示すご
とく回動させて左右のアーム４２，４２間にガス
配管Ａを導入させ、導入後、回動アーム４３を元
の状態（第３図の状態）にセツトすれば、押圧体
５１と受圧体５２および切断刃６１と受刃６２
が、ガス配管Ａを挟んで互に対向するように位置
する。このセツト時、工具はガス配管Ａに対して
ガス漏れが起ている側ａより上流側に位置させ、
かつ第７図で示されているようにガス漏れが起て
いる側ａ（ガスの流通方向における下流側）に切
断刃６１、受刃６２が位置するようにセツトす
る。 Then, using such a pipe emergency shutoff tool, the gas pipe A with the gas leak is shut off. That is, the rotating arm 43 is rotated as shown in FIG. 4 to introduce the gas pipe A between the left and right arms 42, 42, and after introduction, the rotating arm 43 is returned to its original state (the state shown in FIG. 3). If set to
are located facing each other with the gas pipe A in between. At this time of setting, the tool is located upstream of side a where the gas leak is occurring with respect to gas pipe A,
Further, as shown in FIG. 7, the cutting blade 61 and receiving blade 62 are set so as to be located on the side a where gas leakage occurs (downstream side in the gas flow direction).
このセツト状態で、主ハンドル杆２１に対し加
圧レバー２２をポンピング運動させると、プラン
ジヤ１４が作動して加圧油が油圧シリンダ部３に
供給され、その圧油の作用でピストン３２が進出
する。このピストン３２は、作動油圧が最大700
Kg／cm2で受圧面積が略38cm3に設定されていること
から最大27トンの押出力で進出する。このピスト
ン３２の進出に伴い、切断刃６１が先行してガス
配管Ａに当接し、まず切断刃６１がパイプ周面を
押潰すようにくい込む。このとき切断刃６１の刃
縁はＶ字形に形成されていることでガス配管Ａの
横滑りが規制されつつ、ガス配管Ａは押潰され、
所定位置まで切断刃６１がガス配管Ａを押潰す
と、つづいて押圧体５１の圧着面５１ａがパイプ
周面に圧接し、以後、押圧体５１がアーム４２，
４２のガイド溝４６に沿つて進出することで、そ
の圧着面５１ａと受圧体５２の圧着面５２ａとに
挟持されたガス配管Ａには、管長方向所定巾にわ
たつて扁平に押潰された閉塞部Ｃが形成される。 In this set state, when the pressurizing lever 22 is pumped against the main handle rod 21, the plunger 14 is operated and pressurized oil is supplied to the hydraulic cylinder section 3, and the piston 32 advances due to the action of the pressurized oil. . This piston 32 has a maximum working oil pressure of 700
Kg/cm 2 and the pressure receiving area is set to approximately 38 cm 3 , so it will be able to advance with a maximum extrusion force of 27 tons. As the piston 32 moves forward, the cutting blade 61 first comes into contact with the gas pipe A, and first the cutting blade 61 sinks into the pipe circumferential surface so as to crush it. At this time, the blade edge of the cutting blade 61 is formed in a V-shape to prevent the gas pipe A from sliding sideways, and the gas pipe A is crushed.
When the cutting blade 61 crushes the gas pipe A to a predetermined position, the crimping surface 51a of the pressing body 51 comes into pressure contact with the circumferential surface of the pipe.
By advancing along the guide groove 46 of 42, the gas pipe A sandwiched between the crimping surface 51a and the crimping surface 52a of the pressure receiving body 52 has a flattened blockage over a predetermined width in the pipe length direction. Section C is formed.
そしてガス配管Ａが所定の扁平状態まで押潰さ
れると、切断刃６１の刃面が、受刃６２の刃面位
置に至り、ガス配管Ａはその切断刃６１および受
刃６２によつて押切り形に切断され切断面Ｂを得
る。この切断後、切断管端は、さらに押圧体５１
および受圧体５２の押圧作用を受けることによ
り、切断管端は強力に押潰されて管内面Ｄが圧着
面５１ａ，５２ａに沿う波形断面に押潰されて完
全に圧着し、管端は密閉状に閉塞される（第７図
参照）。 When the gas pipe A is crushed to a predetermined flat state, the blade surface of the cutting blade 61 reaches the blade surface position of the receiving blade 62, and the gas pipe A is pushed and cut by the cutting blade 61 and the receiving blade 62. It is cut into a shape to obtain a cut surface B. After this cutting, the cut tube end is further pressed by a pressing body 51.
By receiving the pressing action of the pressure-receiving body 52, the cut tube end is strongly crushed, and the tube inner surface D is crushed into a wave-shaped cross section along the crimping surfaces 51a and 52a, and the tube end is completely crimped. (See Figure 7).
以上のように加工処理された既設ガス配管Ａの
切断管端部に合成ガスキヤツプＥが接着剤Ｆを介
して被着されることで（第２図参照）配管の遮断
部構造が構成されるのであり、このような構成で
は、管内流体であるガスの漏出は閉塞部Ｃにおけ
る管内面Ｄの圧着閉塞作用と、合成ゴムキヤツプ
Ｅで保持されて切断面Ｂおよび閉塞部Ｃ外周面を
覆う接着剤Ｆの密封作用により２段階に遮断され
る。 By adhering the synthetic gas cap E to the cut pipe end of the existing gas pipe A that has been processed as described above via the adhesive F (see Figure 2), the pipe shutoff structure is constructed. In such a configuration, the leakage of gas, which is the fluid inside the pipe, is prevented by the crimping and closing action of the inner surface D of the pipe at the closed part C, and by the adhesive F held by the synthetic rubber cap E and covering the cut surface B and the outer peripheral surface of the closed part C. It is shut off in two stages by the sealing action of.
従つて、上記管内面Ｄに塵埃が付着していたり
発錆があるなどの事情で管内面Ｄの圧着が不完全
なため微小量のガスが切断面Ｂ部分から漏れるこ
とがあつても、接着剤Ｆの密封作用で外部への流
出は完全に遮断される。 Therefore, even if a small amount of gas leaks from the cut surface B due to incomplete crimping of the tube inner surface D due to dust or rust on the tube inner surface D, the bonding will not be possible. The sealing effect of agent F completely blocks outflow to the outside.
また、このように加工処理されたガス配管Ａの
遮断部は地中に埋め戻されるのであるが、その場
合、地下水は上記合成ゴムキヤツプＥ内の接着剤
Ｆの密封作用により切断面Ｂ部を通つて管内へ浸
入するのが阻止されるから、ガス配管Ａの内面腐
触およびこれに伴うガス漏れ事故の再発も有効に
防止される。 Furthermore, the cutoff section of the gas pipe A that has been processed in this way is backfilled underground, but in that case, groundwater passes through the cut surface B due to the sealing effect of the adhesive F in the synthetic rubber cap E. Since the gas is prevented from entering the pipe, corrosion of the inner surface of the gas pipe A and the recurrence of gas leakage accidents caused by this are also effectively prevented.
そして接着剤Ｆを内部に充填して保持する部材
が、合成ゴムキヤツプＥであることから、その弾
性により切断管端部への被着作業が容易であり、
また密着性に優れ、接着剤Ｆによる密封充填作用
の確実を期することができる。 Since the member that fills and holds the adhesive F inside is the synthetic rubber cap E, its elasticity makes it easy to apply the adhesive to the end of the cut tube.
Furthermore, it has excellent adhesion, and the sealing and filling effect of the adhesive F can be ensured.
なお、合成ゴムキヤツプＥの被着にあたり切断
面Ｂには、これに合致する形状のブチルゴム素材
からなるパツドを圧接するようにしてもよく、そ
うすることでパツドが切断面Ｂを密封するから、
ガス遮断あるいは地下水浸水阻止の効果がより確
実に得られる。 In addition, when attaching the synthetic rubber cap E, a pad made of a butyl rubber material having a shape that matches the cut surface B may be pressed into contact with the cut surface B. By doing so, the pad seals the cut surface B.
The effect of gas cutoff or groundwater infiltration prevention can be more reliably obtained.
さらにガス配管Ａの閉塞部Ｃは、波形断面に限
らず他の断面形状でもよく、さらに本考案は、ガ
ス配管Ａの他、水道配管などの他の配管にも適用
できるものである。 Further, the closed portion C of the gas pipe A is not limited to a wave-shaped cross section, but may have other cross-sectional shapes, and the present invention can be applied to other pipes such as water pipes in addition to the gas pipe A.
以上説明したとおり本考案によれば、切断管端
部の閉塞部における複数段の波形形状で管内面が
圧着される押潰作用に加えて、切断管端部に被着
した合成ゴムキヤツプ内の接着剤の密封充填作用
により管の内外が２重、３重に遮断されるので、
管内流体の漏出を防止する遮断効果が確実なもの
となると共に、この配管遮断部を埋め戻した後も
地下水などが配管内に浸入するのを防止すること
ができるから、切断管端部の腐蝕に伴う流体漏出
事故の再発も未然に防止できる。また合成ゴムキ
ヤツプはその弾性により切断管端部への被着が容
易であるから作業性が良く、さらに弾性的に切断
管端部に密着できるから接着剤による密封充填作
用が確実となる。
As explained above, according to the present invention, in addition to the crushing action in which the inner surface of the tube is compressed by the multi-stage waveform shape at the closed part of the cut tube end, the adhesive in the synthetic rubber cap attached to the cut tube end is Due to the hermetic filling action of the agent, the inside and outside of the tube are double- or triple-blocked.
Not only does the blocking effect to prevent leakage of fluid inside the pipe become reliable, but it also prevents underground water etc. from entering the pipe even after the pipe cut-off part is backfilled, which prevents corrosion at the end of the cut pipe. It is also possible to prevent the recurrence of fluid leakage accidents. Furthermore, the synthetic rubber cap has good workability because it can be easily attached to the end of the cut tube due to its elasticity.Furthermore, since the synthetic rubber cap can elastically adhere tightly to the end of the cut tube, the sealing and filling effect of the adhesive is ensured.
第１図は本考案の一実施例を示す一部断面図、
第２図は合成ゴムキヤツプの被着作業の説明図、
第３図は作業工具としての配管緊急遮断工具を一
部断面して示した全体側面図、第４図は同要部の
斜視図、第５図は同要部を一部断面で示した正面
図、第６図は同要部を一部断面で示した底面図、
第７図は同作用説明図である。
Ａ……ガス配管、Ｂ……切断面、Ｃ……閉塞
部、Ｄ……管内面、Ｅ……合成ゴムキヤツプ、Ｆ
……接着剤、Ｇ……配管緊急遮断工具、１……工
具本体、１１……オイル室、１２……ポンプ室、
１３……圧油室、１４……プランジヤ、１５……
戻し油路、１６……レバー、１７……開閉バル
ブ、２……操作ハンドル部、２１……主ハンドル
杆、２２……加圧ハンドル、２３……揺動レバ
ー、２４……枢支ピン、２５……グリツプ、３…
…油圧シリンダ部、３１……シリンダ、３２……
ピストン、３３……圧油受口、３４……連結リン
グ、３５……リターンスプリング、３６……リン
グ溝、３７……小径軸部、４……配管遮断部、４
１……支持リング、４２……アーム、４３……回
動アーム、４４……枢軸、４５……連結ピン、４
６……ガイド溝、４７……クリツクピン、５１…
…押圧体、５２……受圧体、６１……切断刃、６
２……受刃。
FIG. 1 is a partial sectional view showing an embodiment of the present invention;
Figure 2 is an explanatory diagram of the process of applying synthetic rubber caps.
Fig. 3 is an overall side view partially cut away of a piping emergency cutoff tool as a work tool, Fig. 4 is a perspective view of the main parts, and Fig. 5 is a front view partially cut away of the main parts. Figure 6 is a bottom view showing a partial cross section of the same essential parts,
FIG. 7 is an explanatory diagram of the same effect. A...Gas piping, B...Cut surface, C...Closed part, D...Pipe inner surface, E...Synthetic rubber cap, F
... Adhesive, G ... Piping emergency cutoff tool, 1 ... Tool body, 11 ... Oil chamber, 12 ... Pump room,
13...Pressure oil chamber, 14...Plunger, 15...
Return oil path, 16... Lever, 17... Opening/closing valve, 2... Operation handle portion, 21... Main handle rod, 22... Pressure handle, 23... Rocking lever, 24... Pivotal pin, 25...Grip, 3...
...Hydraulic cylinder section, 31...Cylinder, 32...
Piston, 33...Pressure oil socket, 34...Connection ring, 35...Return spring, 36...Ring groove, 37...Small diameter shaft section, 4...Piping cutoff section, 4
1...Support ring, 42...Arm, 43...Rotating arm, 44...Pivot, 45...Connecting pin, 4
6... Guide groove, 47... Click pin, 51...
... Pressing body, 52 ... Pressure receiving body, 61 ... Cutting blade, 6
2...Ukeblade.
Claims (1)
段の波形形状で内面が圧着されるように直径方向
に押潰して閉塞部を形成し、 この閉塞部を形成した切断管端部の外側に、密
封充填剤を内装した合成ゴムキヤツプを被着した
ことを特徴とする配管の遮断部構造。[Claims for Utility Model Registration] A closed portion is formed by crushing in the diametrical direction so that the inner surface is crimped in a multi-step waveform shape over a predetermined length in the longitudinal direction of the pipe from the cut surface, and this closed portion is formed. A pipe cutoff structure characterized in that a synthetic rubber cap containing a sealing filler is attached to the outside of the cut pipe end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984154090U JPH0225038Y2 (en) | 1984-10-11 | 1984-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984154090U JPH0225038Y2 (en) | 1984-10-11 | 1984-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6169596U JPS6169596U (en) | 1986-05-13 |
| JPH0225038Y2 true JPH0225038Y2 (en) | 1990-07-10 |
Family
ID=30712083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984154090U Expired JPH0225038Y2 (en) | 1984-10-11 | 1984-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225038Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261581A (en) * | 2009-05-11 | 2010-11-18 | Millipore Ab | Sealing means, kit, and method for sealing hollow hose made of flexible material |
| JP2011237012A (en) * | 2010-05-13 | 2011-11-24 | Suga Kizai Kk | Method of press-cutting pipe for refrigerant and tool for the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4480054B2 (en) * | 1999-05-10 | 2010-06-16 | 日立金属株式会社 | Piping return fitting |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5256617U (en) * | 1975-10-23 | 1977-04-23 | ||
| JPS6144072Y2 (en) * | 1978-04-28 | 1986-12-12 | ||
| JPS56106292U (en) * | 1980-01-18 | 1981-08-18 |
-
1984
- 1984-10-11 JP JP1984154090U patent/JPH0225038Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261581A (en) * | 2009-05-11 | 2010-11-18 | Millipore Ab | Sealing means, kit, and method for sealing hollow hose made of flexible material |
| JP2011237012A (en) * | 2010-05-13 | 2011-11-24 | Suga Kizai Kk | Method of press-cutting pipe for refrigerant and tool for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6169596U (en) | 1986-05-13 |
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