JPH0681377A - Pipe joint tool - Google Patents
Pipe joint toolInfo
- Publication number
- JPH0681377A JPH0681377A JP23354092A JP23354092A JPH0681377A JP H0681377 A JPH0681377 A JP H0681377A JP 23354092 A JP23354092 A JP 23354092A JP 23354092 A JP23354092 A JP 23354092A JP H0681377 A JPH0681377 A JP H0681377A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- gap
- elastic body
- fitting
- joint
- 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
Links
Landscapes
- Joints With Sleeves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、管内に流体が存在する
流体輸送管、例えば、地下に埋設された水道管に対し
て、その途中にバルブ等の介在物を設けるのに、断水し
ない状態で水道管を切断撤去してその撤去跡にバルブ等
の介在物を配置し、介在物の継手端部と水道管の切断端
部との管継手部を密閉状態に覆う管継手具に関し、詳し
く説明すると、一対の管を同一軸心上で各々の端面間に
隙間を明けた状態に配置した管継手部において、前記両
管に外嵌可能な継手本体を設け、前記両管外周面に周方
向に沿って各別に密接する一対のシール材を前記継手本
体に設けた管継手具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid transport pipe in which a fluid is present, for example, a water pipe buried underground, in which a valve or other inclusion is provided, but the water is not cut off. For pipe fittings in which the water pipe is cut and removed with, the inclusions such as valves are placed in the removal trace, and the pipe joint between the joint end of the inclusion and the cut end of the water pipe is covered in a sealed state. Explaining this, in a pipe joint portion in which a pair of pipes are arranged on the same axial center with a gap between each end face, a joint body that can be externally fitted to the both pipes is provided, and the pipe outer periphery is surrounded The present invention relates to a pipe joint tool in which a pair of sealing materials, which are in close contact with each other along a direction, are provided on the joint body.
【０００２】[0002]
【従来の技術】従来、この種の管継手具としては、前記
継手本体と前記シール材とのみによって構成してある。2. Description of the Related Art Heretofore, a pipe fitting of this type has been constituted only by the joint body and the sealing material.
【０００３】[0003]
【発明が解決しようとする課題】水道管を対象とした不
断水での前記バルブ設置工事を例にあげ、図４〜図８に
よってその手順を説明すると、次のとおりである。The procedure for installing the valve for uninterrupted water for a water pipe will be described by way of example with reference to FIGS. 4 to 8 as follows.
【０００４】 図４に示すように、前記水道管１のバ
ルブ２設置位置の管軸心Ｐ方向前後に、径方向に分割構
成の管継手具Ｊを設置する。 図５に示すように、前記バルブ２設置位置の水道管
１を前記管継手具Ｊごと密閉容器３で覆う。（密閉容器
３は、水道管１周囲を密閉する第一タンクＡと、管切断
機４または設置用バルブ２を出し入れ・収納する蓋７付
き第二タンクＢと、前記両タンクＡ，Ｂの境界に開閉自
在な作業用仕切り弁５を設けてある。） 管切断機４をバルブ２設置位置に設置し、水道管１
を切断して、第二タンクＢに回収し、前記仕切り弁５を
閉める。 図６に示すように前記管切断機４に替えて設置用バ
ルブ２を第二タンクＢ内に設置して、と同様に仕切り
弁５を開閉操作しつつ第一タンクＡの密閉状態を保った
まま前記管撤去箇所にバルブ２を配置する。 図７に示すように水道管１とバルブ２との管継手部
Ｃを覆うように、密閉容器３に設けた押し棒６で前記管
継手具Ｊを近接方向にスライドさせて管接続を行い、図
８に示すように密閉容器３を撤去した後、管継手具Ｊと
水道管１との隙間へシール用ゴム１３ｂを押し込むため
の押し輪Ｆを取り付ける。As shown in FIG. 4, pipe fittings J having a split configuration are installed in the radial direction before and after the pipe 2 in the direction of the pipe axis P at the valve 2 installation position of the water pipe 1. As shown in FIG. 5, the water pipe 1 at the position where the valve 2 is installed is covered with the pipe joint tool J in a closed container 3. (The airtight container 3 is a boundary between the first tank A that seals the periphery of the water pipe 1, the second tank B with the lid 7 that puts in and out the pipe cutting machine 4 or the installation valve 2 and the two tanks A and B. There is a partition valve 5 for work that can be opened and closed freely.) The pipe cutting machine 4 is installed at the valve 2 installation position, and the water pipe 1
Is cut and collected in the second tank B, and the sluice valve 5 is closed. As shown in FIG. 6, the installation valve 2 was installed in the second tank B in place of the pipe cutting machine 4, and the sluice valve 5 was opened and closed in the same manner as described above to maintain the sealed state of the first tank A. The valve 2 is arranged at the pipe removal location as it is. As shown in FIG. 7, the pipe joint tool J is slid in the proximity direction by the push rod 6 provided in the closed container 3 so as to cover the pipe joint portion C between the water pipe 1 and the valve 2 to perform pipe connection, After removing the closed container 3 as shown in FIG. 8, a push ring F for pushing the sealing rubber 13b into the gap between the pipe fitting J and the water pipe 1 is attached.
【０００５】しかし、上述した従来の管継手具によれ
ば、前記管継手具内方の管端面間は、隙間が形成された
ままで、管切断面は管内の流体と直接接触することを避
けることが出来ないので、例えば、水道管等の腐食する
可能性のある管においては、何のライニング処理も施し
ていない前記管切断面から腐食が始まり、管内流体に錆
が混ざったり、管そのものの耐久性が低下したりする欠
点がある。However, according to the above-described conventional pipe fitting, a gap is still formed between the pipe end surfaces inside the pipe fitting, and the cut surface of the pipe is prevented from coming into direct contact with the fluid in the pipe. Therefore, for example, in a pipe that may be corroded such as a water pipe, corrosion starts from the cut surface of the pipe that has not been subjected to any lining treatment, rust is mixed in the pipe fluid, and the durability of the pipe itself There is a drawback that the property deteriorates.
【０００６】従って、本発明の目的は、上記欠点に鑑
み、管内流体の流通を妨げない状態で切断した管継手部
の切断面が腐食しにくい管継手具を提供するところにあ
る。Therefore, in view of the above-mentioned drawbacks, an object of the present invention is to provide a pipe joint tool in which a cut surface of a pipe joint portion cut in a state where the flow of a fluid in a pipe is not easily corroded.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
の本発明における管継手具の特徴構成は、一対の管を同
一軸心上で各々の端面間に隙間を明けた状態に配置した
管継手部に外嵌させた状態の継手本体と前記隙間との間
に、前記両管の各端面に接当可能な長尺のシール用弾性
体を設け、前記継手本体外方からの操作で前記シール用
弾性体を前記隙間に押込可能な押込機構を設けてあると
ころにある。In order to achieve this object, the pipe joint tool according to the present invention is characterized in that a pair of pipes are arranged on the same axis with a gap between each end face. Between the joint body in a state of being fitted onto the joint portion and the gap, a long sealing elastic body capable of contacting each end surface of the both pipes is provided, and the operation is performed from the outside of the joint body. There is provided a pushing mechanism capable of pushing the sealing elastic body into the gap.
【０００８】尚、前記シール用弾性体を前記一対のシー
ル材間で収容するための収容凹部を前記継手本体に形成
し、硬質で可撓性の帯状バックアップ材を、前記シール
用弾性体の管径方向外方に付設し、前記押込機構を構成
するに、前記帯状バックアップ材を管径方向の内方に押
圧自在な押圧ボルトを、前記継手本体の周方向複数箇所
に設けてあってもよい。An accommodation recess for accommodating the sealing elastic body between the pair of sealing materials is formed in the joint body, and a hard and flexible band-shaped backup material is attached to the sealing elastic tube. In order to configure the pushing mechanism by attaching the pressing bolts radially outward, the pressing bolts capable of pressing the band-shaped backup material inward in the pipe radial direction may be provided at a plurality of circumferential positions of the joint body. .
【０００９】[0009]
【作用】本発明における管継手具の特徴構成によれば、
管継手部に外嵌させた状態の継手本体と、管端部間の隙
間との間に、各管端面に接当可能な長尺のシール用弾性
体を設け、そのシール用弾性体を前記継手本体外方から
の操作で前記隙間に押し込み可能な押込機構を設けてあ
るので、前述のバルブ設置工事のように、管切断面を露
出させて直接的にライニングすることが不可能な場合で
あっても、前記押込機構によって、前記シール用弾性体
を前記隙間に対して継手本体外方からの操作で押し込む
ことができ、前記管切断面にシール用弾性体を接当させ
ることによって、管切断面はシール用弾性体で覆われ、
管内流体との接触が減少するから腐食しにくくすること
が可能になる。According to the characteristic construction of the pipe fitting of the present invention,
Provided between the joint body externally fitted to the pipe joint portion and the gap between the pipe end portions is a long sealing elastic body capable of contacting each pipe end surface, and the sealing elastic body is Since a pushing mechanism that can be pushed into the gap by operating from the outside of the fitting body is provided, it is possible to directly line the exposed pipe cut surface as in the case of the above-mentioned valve installation work. Even if there is, by the pushing mechanism, the sealing elastic body can be pushed into the gap by an operation from the outside of the joint body, and the sealing elastic body is brought into contact with the cut surface of the pipe, The cut surface is covered with a sealing elastic body,
Since the contact with the fluid in the pipe is reduced, it becomes possible to prevent corrosion.
【００１０】尚、前記シール用弾性体を前記一対のシー
ル材間で収容するための収容凹部を前記継手本体に形成
してあれば、管継手部に前記継手本体を管軸芯方向にス
ライド設置する際に、シール用弾性体を前記収容凹部に
収容した状態でスライドすることが可能となるので、管
切断面等にシール用弾性体が引掛かって破損することを
防止することができると共に、よりスムースにスライド
させることが可能となる。さらには、硬質で可撓性の帯
状バックアップ材を、前記シール用弾性体の管径方向外
方に付設すると共に、前記押込機構を構成するに、前記
帯状バックアップ材を管径方向の内方に押圧自在な押圧
ボルトを、前記継手本体の周方向複数箇所に設けてあれ
ば、前記押圧ボルトを螺進させることによって、前記バ
ックアップ材を、管径方向の内方に押圧し、前記継手本
体の内周面に沿って端部同士が近接方向に移動して縮径
させることが可能となり、それと同時にバックアップ材
に付設されたシール用弾性体には管径方向内方への均等
な力が作用し、シール用弾性体もバックアップ材と同様
に縮径して、管端面間の隙間に前記シール用弾性体は押
し入り管切断面に接当する。即ち、前記押圧ボルトを螺
進させるだけの簡単な操作で、管内の流通状態を止めな
い状態で前記隙間をシール用弾性体で詰め、管切断面の
腐食を減少させることが可能となる。If a housing recess for housing the sealing elastic body between the pair of sealing materials is formed in the joint body, the joint body is slidably installed in the pipe joint portion in the axial direction of the pipe axis. When doing so, since it becomes possible to slide the sealing elastic body in the state of being accommodated in the accommodation recess, it is possible to prevent the sealing elastic body from being caught and damaged by the pipe cutting surface and the like. It becomes possible to slide it smoothly. Further, a hard and flexible strip-shaped backup material is attached to the sealing elastic body outside in the pipe radial direction, and the strip-shaped backup material is arranged inward in the pipe radial direction to configure the pushing mechanism. If pressure bolts that can be pressed are provided at a plurality of positions in the circumferential direction of the joint body, the backup material is pushed inward in the pipe radial direction by screwing the pressure bolts. It becomes possible to reduce the diameter by moving the ends in the direction of proximity along the inner peripheral surface, and at the same time, the sealing elastic body attached to the backup material receives a uniform force inward in the pipe radial direction. Then, the sealing elastic body is also reduced in diameter in the same manner as the backup material, and the sealing elastic body is pressed into the gap between the pipe end faces and abuts on the cut surface of the pipe. That is, it is possible to reduce the corrosion of the cut surface of the pipe by filling the gap with the elastic body for sealing without stopping the flow state in the pipe by a simple operation of screwing the pressing bolt.
【００１１】[0011]
【発明の効果】従って、本発明の管継手具によれば、管
内流体の流通を妨げることなく管継手部の隙間をライニ
ングし、管端部からの腐食を抑えることにより、管路全
体の耐久性を向上させることができるようになった。As described above, according to the pipe joint tool of the present invention, the gap of the pipe joint portion is lined without impeding the flow of the fluid in the pipe, and the corrosion from the pipe end portion is suppressed, thereby improving the durability of the entire pipe line. It has become possible to improve the sex.
【００１２】[0012]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】本実施例の管継手具Ｊは、図４〜図８に示
すように、管の一例である既設水道管１の特定箇所Ｓ
に、バルブ２を設置する水道管工事において、既設水道
管１の通水を遮断せずに前記特定箇所Ｓを切断して取り
除くと共に、その箇所に前記バルブ２を配置し、既設水
道管１の管部分１Ａとバルブ２の管部分２Ａとに外嵌状
態に設置して、相互を連結するための管継手具Ｊであ
る。As shown in FIGS. 4 to 8, the pipe fitting J of the present embodiment is a specific portion S of the existing water pipe 1 which is an example of a pipe.
In the water pipe construction where the valve 2 is installed, the specific place S is cut and removed without blocking the water flow of the existing water pipe 1, and the valve 2 is arranged at the place to remove the existing water pipe 1. It is a pipe joint tool J for externally fitting the pipe portion 1A and the pipe portion 2A of the valve 2 to connect them.
【００１４】図に見られるように、本実施例のバルブ設
置装置Ｖは、前記特定箇所Ｓに掘り下げられた作業用縦
穴Ｔ（図４参照）に設置され、水道管１周囲を密閉する
第一タンクＡと、管切断機４または設置用バルブ２を出
し入れ・収納する蓋付き第二タンクＢと、前記両タンク
Ａ，Ｂの境界を開閉自在な仕切り弁５とを設けて構成し
てある。As shown in the drawing, the valve installation device V of the present embodiment is installed in a vertical hole T for work (see FIG. 4) dug in the specific location S, and seals the periphery of the water pipe 1. A tank A, a second tank B with a lid for taking in and out and housing the pipe cutting machine 4 or the installation valve 2 and a partition valve 5 that can open and close the boundary between the two tanks A and B are provided.
【００１５】前記第一タンクＡは、管径方向に２分割構
成で、水道管１に設置した状態で管外周面との間を密閉
可能に形成してあり、第一タンクＡ内方の水道管１管部
分１Ａに設置した一対の管継手具Ｊを、それぞれ水道管
軸心Ｐ方向に沿って近接方向にスライドさせる押し棒６
を水道管１周方向に沿って複数設けてある。The first tank A is divided into two parts in the pipe radial direction and is formed so as to be able to seal between the outer peripheral surface of the pipe when installed in the water pipe 1. Push rod 6 that slides a pair of pipe fittings J installed in the pipe 1 pipe portion 1A in the proximity direction along the water pipe axis P direction, respectively.
Are provided along the circumference of one water pipe.
【００１６】前記第二タンクＢは、前記仕切り弁５を介
して第一タンクＡと連通状態に接続してあり、前記仕切
り弁５とは反対側の端部には、内空部を密閉解放自在な
蓋７を設けてある。この蓋７の開閉操作と、前記仕切り
弁５の開閉操作との適切な組合せによって、第二タンク
Ｂの内空部への管切断機４またはバルブ２等の出し入れ
を、前記水道管１内からの水を遮断した状態で自在に行
うことが可能となる。The second tank B is connected in communication with the first tank A via the partition valve 5, and the inner space is hermetically released at the end opposite to the partition valve 5. A free lid 7 is provided. By appropriately combining the opening / closing operation of the lid 7 and the opening / closing operation of the sluice valve 5, the pipe cutting machine 4 or the valve 2 and the like can be moved in and out of the water pipe 1 into / from the inner space of the second tank B. It is possible to do it freely while shutting off the water.
【００１７】また、前記蓋７には、第二タンクＢ内空部
に配置した管切断機４またはバルブ２を水道管１側へ移
動させたり、戻したりするための駆動装置９から延伸し
た駆動伝導軸８を貫通状態に設けてある。Further, the lid 7 has a drive extended from a drive device 9 for moving the pipe cutting machine 4 or the valve 2 arranged in the inner space of the second tank B to the side of the water pipe 1 and returning the same. The transmission shaft 8 is provided in a penetrating state.
【００１８】本実施例の管継手具Ｊについて説明する
と、図１〜図３に示すように管径方向に二分割構成の継
手本体１０を設け、管継手部Ｃに外嵌させた状態の前記
継手本体１０と管端面１ａ，２ａ間の隙間Ｄとの間に配
されて、前記両管部分１Ａ，２Ａの各端面１ａ，２ａに
接当可能な長尺のシール用弾性体１１を設けて構成して
ある。The pipe fitting J of this embodiment will be described. As shown in FIGS. 1 to 3, a joint body 10 having a two-divided structure is provided in the pipe radial direction, and the pipe joint portion C is fitted onto the joint body 10 as described above. An elongated sealing elastic body 11 is provided which is arranged between the joint body 10 and the gap D between the pipe end faces 1a and 2a and is capable of contacting the respective end faces 1a and 2a of the pipe parts 1A and 2A. Configured.
【００１９】前記継手本体１０は、外周面に周方向に沿
ったフランジ部１２を両端にそれぞれ設けてあり、この
フランジ部１２は、隣接するバルブ２のフランジ部２ｂ
と板状パッキン１３ａを介してボルト接合可能に形成し
てある。また、内周面には、前記両管部分１Ａ，２Ａに
その周方向に沿って各別に密接自在なシール材の一例で
あるゴムシール１３を管軸心Ｐ方向に間隔を明けて一対
設けてある。更に、継手本体１０の内周面の前記両ゴム
シール１３間に、前記シール用弾性体１１を収納可能な
周溝状の収容凹部１４を設けてあり、その収容凹部１４
の底部には、前記シール用弾性体１１を前記隙間Ｄに押
込むための押込機構Ｅとしての貫通押圧ボルト１５を周
方向に沿って複数設けてある。The joint body 10 is provided with a flange portion 12 along the circumferential direction on its outer peripheral surface at both ends, and the flange portion 12 has a flange portion 2b of an adjacent valve 2.
It is formed so as to be bolted through the plate-like packing 13a. Further, on the inner peripheral surface, a pair of rubber seals 13, which is an example of a sealing material which can freely contact each other along the circumferential direction of the both pipe portions 1A, 2A, are provided at intervals in the pipe axis P direction. . Further, between the both rubber seals 13 on the inner peripheral surface of the joint body 10, there is provided a circumferential groove-shaped accommodating recess 14 capable of accommodating the sealing elastic body 11, and the accommodating recess 14
A plurality of penetrating pressing bolts 15 as a pressing mechanism E for pressing the sealing elastic body 11 into the gap D are provided along the circumferential direction at the bottom of the.
【００２０】前記シール用弾性体１１は、前記隙間Ｄに
押込まれた状態で前記各端面１ａ，２ａの全周にわたっ
て接当可能な長さ及び幅に形成してあり、管径方向外方
には、硬質で可撓性の帯状バックアップ材１６を付設し
てある。この帯状バックアップ材１６は、前記押圧ボル
ト１５の螺進に伴う局部的な押圧力を受けて水道管１内
方に変形しつつ縮径して、前記シール用弾性体１１をほ
ぼ均等な押圧状態で前記隙間Ｄに押し込めるように形成
してある。The sealing elastic body 11 is formed in such a length and width that it can be abutted over the entire circumference of each of the end faces 1a, 2a in a state of being pushed into the gap D, and is outwardly in the pipe radial direction. Is provided with a hard and flexible band-shaped backup material 16. The strip-shaped backup material 16 receives a local pressing force due to the screwing of the pressing bolt 15 and is deformed inwardly while being deformed inwardly of the water pipe 1 to press the sealing elastic body 11 in a substantially uniform pressing state. It is formed so that it can be pushed into the gap D.
【００２１】本実施例の管継手具Ｊによれば、図４〜図
８に示すような手順で管継手部Ｃに管継手具Ｊを設置し
た状態で、継手本体１０に設けた前記押圧ボルト１５を
管径方向内方へ螺進させることで前記バックアップ材１
６及びシール用弾性体１１は、管内方に押圧されて縮径
し、前記隙間Ｄに対してシール用弾性体１１が押込ま
れ、管端面１ａ，２ａに接当してその部分の腐食を抑制
することが可能となる。According to the pipe joint tool J of this embodiment, the pressing bolt provided on the joint main body 10 in a state where the pipe joint tool J is installed in the pipe joint portion C in the procedure shown in FIGS. 4 to 8. The backup material 1 is obtained by screwing 15 inward in the pipe radial direction.
6 and the elastic body 11 for sealing are reduced in diameter by being pressed inwardly of the pipe, and the elastic body 11 for sealing is pushed into the gap D and comes into contact with the pipe end faces 1a, 2a to suppress corrosion of the portion. It becomes possible to do.
【００２２】〔別実施例〕以下に別実施例を説明する。[Other Embodiment] Another embodiment will be described below.
【００２３】〈１〉 前記押込機構Ｅは、先の実施例で
説明した帯状バックアップ材１６を管径方向に押圧する
押圧ボルト１５に限るものではなく、例えば、帯状バッ
クアップ材１６の両端に係止し、その両端を互いに引き
寄せるように形成された引張用ボルトを設けた構成にす
れば、前記シール用弾性体１１の隙間Ｄへの押込み操作
が、複数のボルトを操作する必要がなく、手間が少なく
なって管継手具の取付作業効率をよくすることが可能と
なり、さらには、バックアップ材１６には引っ張り応力
を作用させて縮径操作するために、そのバックアップ材
１６に金属等の引張応力が期待できる材質を用いる場合
は、バックアップ材１６の部材断面積を減らすことが可
能となり、厚さが薄い材料を用いることができて、取扱
い性及び全体としてのコンパクト性を向上させることも
可能となる。<1> The pushing mechanism E is not limited to the pressing bolt 15 that presses the belt-shaped backup material 16 in the pipe radial direction described in the previous embodiment, but is locked to both ends of the belt-shaped backup material 16, for example. However, if the pulling bolts are formed so that both ends thereof are attracted to each other, the pushing operation of the sealing elastic body 11 into the gap D does not require the operation of a plurality of bolts, which is troublesome. It becomes possible to improve the work efficiency of the fitting of the pipe fitting, and the tensile stress of metal or the like is applied to the backup material 16 in order to apply the tensile stress to the backup material 16 to perform the diameter reduction operation. When the material that can be expected is used, it is possible to reduce the member cross-sectional area of the backup material 16, and it is possible to use a material having a small thickness, which is easy to handle and overall. It is also possible to improve the compactness of.
【００２４】〈２〉 また、前記押圧ボルト１５の他の
変形例として、図９に示すように、先の実施例の押圧ボ
ルト１５の拡径頭部に替えて、ボルト端面部に角穴１７
を設け、その角穴１７に嵌合可能な角レンチによって螺
進できるように形成したものであってもよく、さらに
は、その押圧ボルト１５によって、前記シール用弾性体
１１を前記隙間Ｄに押し込んだ後、押圧ボルト１５に螺
着可能で且つシール用ゴムリング１３ｃを付設してある
袋ナット１８を、前記押圧ボルト１５を覆う状態に螺着
させることによって、前記押圧ボルト１５に対するボル
ト穴の密閉性をより向上させることが可能となる。<2> As another modified example of the pressing bolt 15, as shown in FIG. 9, instead of the expanded diameter head of the pressing bolt 15 of the previous embodiment, a square hole 17 is formed in the bolt end face.
May be provided so that it can be screwed by a square wrench that can be fitted into the square hole 17. Further, the pressing bolt 15 pushes the sealing elastic body 11 into the gap D. After that, a cap nut 18 that can be screwed onto the pressing bolt 15 and is provided with a sealing rubber ring 13c is screwed onto the pressing bolt 15 so as to cover the pressing bolt 15, thereby sealing the bolt hole with respect to the pressing bolt 15. It is possible to further improve the sex.
【００２５】〈３〉 本発明による管継手具Ｊは、先の
実施例で説明した流体輸送管の一例である水道管１の管
部分１Ａと、介在物の一例であるバルブ２の管部分２Ａ
との管継手部Ｃに設置するものに限らず、他の流体輸送
管と他の介在物との管継手部、さらには、流体輸送管同
士や介在物同士等の管継手部に設けることも可能で、要
するに管部分を備えたもの同士の管継手部に設置するこ
とができる。それら管部分を総称して管Ｒという。<3> A pipe fitting J according to the present invention has a pipe portion 1A of a water pipe 1 which is an example of the fluid transport pipe described in the previous embodiment and a pipe portion 2A of a valve 2 which is an example of an inclusion.
It is not limited to the one installed in the pipe joint portion C with, and may be provided in the pipe joint portion between other fluid transport pipes and other inclusions, and further in the pipe joint portion between fluid transport pipes or inclusions. It is possible and, in short, can be installed in a pipe joint portion between pipes having pipe portions. The pipe portions are collectively called pipe R.
【００２６】尚、特許請求の範囲の項に、図面との対照
を便利にするために符号を記すが、該記入により本発明
は添付図面の構成に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.
【図１】実施例の管継手具を表す斜視図FIG. 1 is a perspective view showing a pipe fitting according to an embodiment.
【図２】実施例の管継手部を表す断面図FIG. 2 is a sectional view showing a pipe joint portion of the embodiment.
【図３】実施例の管継手部を表す断面図FIG. 3 is a sectional view showing a pipe joint portion of the embodiment.
【図４】実施例の水道管工事の手順を示す概略図FIG. 4 is a schematic diagram showing the procedure of the water pipe construction of the embodiment.
【図５】実施例の水道管工事の手順を示す概略図FIG. 5 is a schematic diagram showing the procedure of the water pipe construction of the embodiment.
【図６】実施例の水道管工事の手順を示す概略図FIG. 6 is a schematic diagram showing the procedure of the water pipe construction of the embodiment.
【図７】実施例の水道管工事の手順を示す概略図FIG. 7 is a schematic diagram showing the procedure of the water pipe construction of the embodiment.
【図８】実施例の水道管工事の手順を示す概略図FIG. 8 is a schematic diagram showing the procedure of the water pipe construction of the embodiment.
【図９】別実施例の押圧ボルトを表す要部の断面図FIG. 9 is a cross-sectional view of a main part showing a pressing bolt according to another embodiment.
１ａ 端面 ２ａ 端面 １０ 継手本体 １１ シール用弾性体 １３ シール材 １４ 収容凹部 １５ 押圧ボルト １６ バックアップ材 Ｃ 管継手部 Ｄ 隙間 Ｅ 押込機構 Ｐ 軸心 Ｒ 管 1a End face 2a End face 10 Joint body 11 Sealing elastic body 13 Sealing material 14 Housing recess 15 Pressing bolt 16 Backup material C Pipe joint portion D Gap E Pushing mechanism P Shaft center R Pipe
Claims (2)
々の端面（１ａ），（２ａ）間に隙間（Ｄ）を明けた状
態に配置した管継手部（Ｃ）において、前記両管（Ｒ）
に外嵌可能な継手本体（１０）を設け、前記両管（Ｒ）
外周面に周方向に沿って各別に密接する一対のシール材
（１３）を前記継手本体（１０）に設けた管継手具であ
って、 前記管継手部（Ｃ）に外嵌させた状態の前記継手本体
（１０）と前記隙間（Ｄ）との間に、前記両管（Ｒ）の
各端面（１ａ），（２ａ）に接当可能な長尺のシール用
弾性体（１１）を設け、前記継手本体（１０）外方から
の操作で前記シール用弾性体（１１）を前記隙間（Ｄ）
に押込可能な押込機構（Ｅ）を設けてある管継手具。1. A pipe joint portion (C) in which a pair of pipes (R) are arranged on the same axis (P) with a gap (D) between each end face (1a), (2a). , Both tubes (R)
A fitting main body (10) which can be externally fitted is provided on the both pipes (R).
A fitting for a pipe provided with a pair of sealing materials (13), which are closely contacted with each other along the circumferential direction on the outer peripheral surface, in the fitting body (10), the fitting being fitted onto the fitting (C). Provided between the joint body (10) and the gap (D) is a long sealing elastic body (11) capable of contacting the end faces (1a) and (2a) of the pipes (R). , The sealing elastic body (11) is opened from the outside of the joint body (10) by the gap (D).
A pipe fitting that is provided with a pushing mechanism (E) that can be pushed.
のシール材（１３）間で収容するための収容凹部（１
４）を前記継手本体（１０）に形成し、硬質で可撓性の
帯状バックアップ材（１６）を、前記シール用弾性体
（１１）の管径方向外方に付設し、前記押込機構（Ｅ）
を構成するに、前記帯状バックアップ材（１６）を管径
方向の内方に押圧自在な押圧ボルト（１５）を、前記継
手本体（１０）の周方向複数箇所に設けてある請求項１
に記載の管継手具。2. A housing recess (1) for housing the sealing elastic body (11) between the pair of sealing materials (13).
4) is formed on the joint body (10), and a hard and flexible band-shaped backup material (16) is attached to the sealing elastic body (11) in the radial direction of the pipe, and the pushing mechanism (E) )
The press bolts (15) capable of pressing the strip-shaped backup material (16) inward in the pipe radial direction are provided at a plurality of circumferential positions of the joint body (10).
The pipe fitting according to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23354092A JP3218095B2 (en) | 1992-09-01 | 1992-09-01 | Pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23354092A JP3218095B2 (en) | 1992-09-01 | 1992-09-01 | Pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0681377A true JPH0681377A (en) | 1994-03-22 |
| JP3218095B2 JP3218095B2 (en) | 2001-10-15 |
Family
ID=16956656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23354092A Expired - Lifetime JP3218095B2 (en) | 1992-09-01 | 1992-09-01 | Pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3218095B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020235594A1 (en) * | 2019-05-23 | 2020-11-26 | 株式会社水道技術開発機構 | Gate valve |
| JP2020190323A (en) * | 2019-05-23 | 2020-11-26 | 株式会社水道技術開発機構 | Gate valve and method for installing the same |
-
1992
- 1992-09-01 JP JP23354092A patent/JP3218095B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020235594A1 (en) * | 2019-05-23 | 2020-11-26 | 株式会社水道技術開発機構 | Gate valve |
| JP2020190323A (en) * | 2019-05-23 | 2020-11-26 | 株式会社水道技術開発機構 | Gate valve and method for installing the same |
| US11655901B2 (en) | 2019-05-23 | 2023-05-23 | Waterworks Technology Development Organization Co., Ltd. | Gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3218095B2 (en) | 2001-10-15 |
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