JPH07224977A - Pipe joint - Google Patents
Pipe jointInfo
- Publication number
- JPH07224977A JPH07224977A JP6016344A JP1634494A JPH07224977A JP H07224977 A JPH07224977 A JP H07224977A JP 6016344 A JP6016344 A JP 6016344A JP 1634494 A JP1634494 A JP 1634494A JP H07224977 A JPH07224977 A JP H07224977A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- lead
- sleeve
- diameter portion
- lead 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.)
- Pending
Links
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 17
- 230000007423 decrease Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000005476 soldering Methods 0.000 abstract description 4
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Joints With Pressure Members (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、既設水道管に使用さ
れている鉛管に、塩ビ等の樹脂管を接続する場合に使用
される管継手に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint used when a resin pipe such as vinyl chloride is connected to a lead pipe used for an existing water pipe.
【０００２】[0002]
【従来の技術及びその課題】近年では、水道管に鉛管は
使用されなくなり、鉛管に代わって塩ビ製の樹脂管が使
用されるようになっているが、既設の古い水道管には未
だ鉛管のものが多い。2. Description of the Related Art In recent years, lead pipes are no longer used for water pipes, and PVC pipes are being used in place of lead pipes. However, lead pipes are still used for existing old water pipes. There are many things.
【０００３】このような鉛管の水道管から各家庭に配管
を行う場合、各家庭に配管される塩ビ製の樹脂管と鉛管
との接続が必要になる。[0003] When piping from such a lead water pipe to each home, it is necessary to connect the vinyl chloride resin pipe and the lead pipe that are piped to each home.
【０００４】従来、このような樹脂管と鉛管との接続
は、次のようにして行われている。Conventionally, such a connection between the resin pipe and the lead pipe has been performed as follows.
【０００５】まず、水道管を止水し、図３に示すよう
に、鉛管Ａの管端を押し広げて管端拡径部Ｃを形成す
る。そして、この鉛管Ａの管端拡径部Ｃに、管継手のス
リーブ２１を差し込んで、鉛管Ａの管端とスリーブ２１
とを両者の間で水漏れが生じないようにハンダ付けす
る。この後、鉛管Ａのハンダ付けしたスリーブ２１の端
面に、パッキン２２を介して樹脂管Ｂの管端の外向きの
鍔Ｄを当てて、スリーブ２１の外面のねじ山に、ナット
２３をねじ止めし、このナット２３の端面に形成した鍔
２４を樹脂管Ｂの鍔Ｄに押し当てることにより、樹脂管
Ｂと鉛管Ａとを接続している。なお、図３において、符
号２５は、ハンダ付け部分を示している。First, the water pipe is stopped, and as shown in FIG. 3, the pipe end of the lead pipe A is expanded to form a pipe end expanded portion C. Then, the sleeve 21 of the pipe joint is inserted into the expanded-diameter portion C of the lead tube A, and the tube end of the lead tube A and the sleeve 21 are inserted.
Solder the and so that water does not leak between them. After that, an outward flange D of the pipe end of the resin pipe B is applied to the end face of the soldered sleeve 21 of the lead pipe A through the packing 22, and the nut 23 is screwed to the screw thread on the outer face of the sleeve 21. Then, the flange 24 formed on the end surface of the nut 23 is pressed against the flange D of the resin pipe B to connect the resin pipe B and the lead pipe A. In FIG. 3, reference numeral 25 indicates a soldered portion.
【０００６】ところが、鉛管Ａの管端に、スリーブ２１
をハンダ付けする作業は、ハンダを溶かしたり、スリー
ブ２１を温めるために、トーチで加熱する必要があり、
時間がかかるという問題がある。また、鉛管Ａを溶かさ
ずに、ハンダだけを溶かして、鉛管Ａとスリーブ２１の
全周を均一に接合するという作業は、極めて熟練を要す
る困難な作業であり、特に、この作業は地下に埋設され
た水道管という作業がしづらい現場で行われるため、ハ
ンダ付け部分２５に不良部分が残ることが多い。However, the sleeve 21 is attached to the pipe end of the lead pipe A.
In order to melt the solder and to warm the sleeve 21, it is necessary to heat with a torch to solder the
There is a problem that it takes time. Further, the work of melting only the solder without melting the lead pipe A and evenly joining the entire circumference of the lead pipe A and the sleeve 21 is a difficult work requiring extremely skill, and particularly this work is buried underground. Since the work of the water pipe is performed at a site that is difficult to perform, a defective portion often remains in the soldered portion 25.
【０００７】鉛管Ａとスリーブ２１のハンダ付け部分２
５に不良があると、水圧によって不良部分から水漏れが
生じやすく、このハンダ付けの不良による水漏れが近年
大きな問題となっている。Solder portion 2 of lead tube A and sleeve 21
5 is defective, water leakage easily occurs from the defective portion due to water pressure, and water leakage due to this poor soldering has become a serious problem in recent years.
【０００８】また、上記従来の方法は、施工時間が長く
かかるため、長時間断水するという問題もある。Further, the above-mentioned conventional method has a problem that water is cut off for a long time because the construction time is long.
【０００９】そこで、この発明は、ハンダ付け作業が不
要でしかも高水圧でも水漏れが生じない、鉛管Ａと樹脂
管Ｂとの管継手を提供しようとするものである。Therefore, the present invention is intended to provide a pipe joint between a lead pipe A and a resin pipe B which does not require soldering work and does not cause water leakage even under high water pressure.
【００１０】[0010]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明は、鉛管Ａと樹脂管Ｂとの間に配置され
る小径部２と、押し広げた鉛管Ａの管端拡径部Ｃの外面
に被せられる大径部３を有し、かつ小径部２と大径部３
の外面にねじ山を形成したスリーブ１と、このスリーブ
１の小径部２の外面にねじ止めされる、内面にねじ山を
形成した樹脂管側ナット４と、上記スリーブ１の大径部
３の外面にねじ止めされる、内面にねじ山を形成した鉛
管側ナット５とからなり、樹脂管側ナット４の端面に、
樹脂管Ｂの管端に形成された外向きの鍔Ｄに対面して内
面が樹脂管Ｂの外面に当接する鍔６を形成し、上記鉛管
側ナット５の端面に、内面が鉛管Ａの外面に当接する鍔
７を形成し、この鉛管側ナット５の鍔７と鉛管Ａの管端
拡径部Ｃとの間の鉛管Ａの外面に、鍔７から管端拡径部
Ｃに向かってスリップリング８、弾性密封リング９、ス
トッパーリング１０を順に嵌めるという管継手の構造を
採用したものである。In order to solve the above-mentioned problems, the present invention is directed to a small diameter portion 2 arranged between a lead pipe A and a resin pipe B, and a pipe end diameter expansion of a lead pipe A which has been expanded. It has a large diameter portion 3 which covers the outer surface of the portion C, and also has a small diameter portion 2 and a large diameter portion 3.
Of the sleeve 1 having a thread formed on the outer surface thereof, the resin pipe side nut 4 having a thread formed on the inner surface thereof, which is screwed to the outer surface of the small diameter portion 2 of the sleeve 1, and the large diameter portion 3 of the sleeve 1. It consists of a lead pipe side nut 5 that is screwed to the outer surface and has a thread formed on the inner surface, and on the end surface of the resin pipe side nut 4,
A flange 6 is formed on the inner end of the lead pipe side nut 5 to face the outward facing flange D formed on the end of the resin pipe B, and the inner face abuts the outer face of the resin pipe B. A flange 7 that abuts on the lead pipe side nut 5, and slips from the flange 7 toward the pipe end expanded portion C on the outer surface of the lead pipe A between the flange 7 of the lead pipe side nut 5 and the pipe end expanded portion C of the lead pipe A. The structure of the pipe joint in which the ring 8, the elastic sealing ring 9 and the stopper ring 10 are fitted in order is adopted.
【００１１】[0011]
【作用】鉛管Ａに鉛管側ナット５を嵌め、それからスリ
ップリング８、弾性密封リング９、ストッパーリング１
０を順次、ストッパーリング１０が鉛管Ａの管端側に位
置するように鉛管Ａの外面に嵌める。Function: The lead pipe side nut 5 is fitted on the lead pipe A, and then the slip ring 8, the elastic sealing ring 9, and the stopper ring 1
Zeros are sequentially fitted on the outer surface of the lead tube A so that the stopper ring 10 is located on the tube end side of the lead tube A.
【００１２】次に、鉛管Ａの管端を押し広げて管端拡径
部Ｃを形成する。Next, the pipe end of the lead pipe A is expanded to form a pipe end expanded portion C.
【００１３】そして、管端拡径部Ｃを形成した鉛管Ａの
管端部に、スリーブ１の大径部３を被せ、この大径部３
の外面のねじ山に、鉛管側ナット５をねじ込むと、弾性
密封リング９がスリップリング８を介して鉛管Ａの管端
側に押されて大径部３の内面と鉛管Ａの外面とに密着す
るため、鉛管Ａの管端にスリーブ１が水密状態で接続さ
れる。この際、鉛管側ナット５を強く締め付けても、鉛
管Ａの管端拡径部Ｃの外面には、ストッパーリング１０
が嵌められているため、鉛管Ａの管端拡径部Ｃの変形が
防止され、弾性密封リング９が管端から抜け出さない。
また、鉛管側ナット５の鍔７と弾性密封リング９との間
には、スリップリング８が嵌められているため、鉛管側
ナット５を回転されても、弾性密封リング９がねじれた
りしない。Then, the large-diameter portion 3 of the sleeve 1 is covered on the pipe end portion of the lead pipe A having the expanded-diameter portion C of the pipe end.
When the lead pipe side nut 5 is screwed into the screw thread on the outer surface of the, the elastic sealing ring 9 is pushed by the pipe end side of the lead pipe A through the slip ring 8 and adheres to the inner surface of the large diameter portion 3 and the outer surface of the lead pipe A. Therefore, the sleeve 1 is connected to the tube end of the lead tube A in a watertight state. At this time, even if the lead pipe side nut 5 is strongly tightened, the stopper ring 10 is attached to the outer surface of the pipe end expanded portion C of the lead pipe A.
Is fitted, the deformation of the pipe end enlarged diameter portion C of the lead pipe A is prevented, and the elastic sealing ring 9 does not come out from the pipe end.
Further, since the slip ring 8 is fitted between the collar 7 of the lead tube side nut 5 and the elastic sealing ring 9, the elastic sealing ring 9 does not twist even when the lead tube side nut 5 is rotated.
【００１４】この後、樹脂管側ナット４を被せた樹脂管
Ｂの管端面を、スリーブ１の小径部２の管端面に合わせ
て、小径部２のねじ山に樹脂管側ナット４をねじ込む
と、樹脂管Ｂがスリーブ１を介して鉛管Ａに接続され
る。After that, the resin pipe side nut 4 covered with the resin pipe side nut 4 is aligned with the pipe end face of the small diameter portion 2 of the sleeve 1, and the resin pipe side nut 4 is screwed into the thread of the small diameter portion 2. , The resin pipe B is connected to the lead pipe A via the sleeve 1.
【００１５】[0015]
【実施例】以下、この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.
【００１６】この発明に係る管継手は、鉛管Ａの管端と
樹脂管Ｂの管端とを、スリーブ１を介して樹脂管側ナッ
ト４と鉛管側ナット５とによって接続するものである。The pipe joint according to the present invention connects the pipe end of the lead pipe A and the pipe end of the resin pipe B with the resin pipe side nut 4 and the lead pipe side nut 5 via the sleeve 1.
【００１７】スリーブ１は、金属によって形成され、６
角形の鍔１５の両側に小径部２と大径部３を有する。小
径部２は、内径が樹脂管Ｂの内径とほぼ同一に形成さ
れ、外面にねじ山が形成されている。大径部３は、内径
が、鉛管Ａの管端拡径部Ｃが嵌まる大きさに形成され、
端部寄りの内面に、テーパー面１３が形成されている。
また、大径部３の外面にはねじ山が形成されている。The sleeve 1 is made of metal, and 6
A small-diameter portion 2 and a large-diameter portion 3 are provided on both sides of a square flange 15. The small diameter portion 2 has an inner diameter substantially the same as the inner diameter of the resin pipe B, and has a thread on the outer surface. The large-diameter portion 3 is formed such that the inner diameter is such that the pipe end enlarged-diameter portion C of the lead pipe A is fitted,
A tapered surface 13 is formed on the inner surface near the end.
A thread is formed on the outer surface of the large diameter portion 3.
【００１８】樹脂管側ナット４は、樹脂管Ｂの管端に嵌
められ、スリーブ１の小径部２の外面にねじ止めされる
ようになっている。樹脂管側ナット４の内面には、ねじ
山が形成されている。また、樹脂管側ナット４の端面に
は、樹脂管Ｂの管端に形成された外向きの鍔Ｄに対面し
て内面が樹脂管Ｂの外面に当接する鍔６が形成されてい
る。The resin pipe side nut 4 is fitted on the pipe end of the resin pipe B and is screwed to the outer surface of the small diameter portion 2 of the sleeve 1. A thread is formed on the inner surface of the resin pipe side nut 4. Further, on the end face of the resin pipe side nut 4, a flange 6 is formed which faces the outward facing flange D formed on the pipe end of the resin pipe B and whose inner surface abuts on the outer surface of the resin pipe B.
【００１９】鉛管側ナット５は、内面に、スリーブ１の
大径部３の外面のねじ山にねじ込まれるねじ山が形成さ
れている。この鉛管側ナット５の端面には、内面が鉛管
Ａの外面に当接する鍔７が形成されている。The lead tube side nut 5 has a thread formed on the inner surface thereof to be screwed into the thread on the outer surface of the large diameter portion 3 of the sleeve 1. A flange 7 is formed on the end surface of the lead tube side nut 5, the inner surface of which is in contact with the outer surface of the lead tube A.
【００２０】上記樹脂管側ナット４および鉛管側ナット
５は、スリーブ１と同様に金属によって形成されてい
る。The resin pipe side nut 4 and the lead pipe side nut 5 are made of metal similarly to the sleeve 1.
【００２１】上記鉛管側ナット５の鍔７と鉛管Ａの管端
拡径部Ｃとの間の鉛管Ａの外面には、鍔７から管端拡径
部Ｃに向かってスリップリング８、弾性密封リング９、
ストッパーリング１０を順に嵌め入れるようになってい
る。On the outer surface of the lead tube A between the flange 7 of the lead tube side nut 5 and the tube end expanded portion C of the lead tube A, a slip ring 8 is elastically sealed from the flange 7 toward the tube end expanded portion C. Ring 9,
The stopper ring 10 is fitted in order.
【００２２】上記スリップリング８およびストッパーリ
ング１０は、金属又は合成樹脂によって形成されてい
る。また、弾性密封リング９は、ゴムによって形成され
ている。The slip ring 8 and the stopper ring 10 are made of metal or synthetic resin. The elastic sealing ring 9 is made of rubber.
【００２３】上記弾性密封リング９は、外面の管端拡径
部Ｃ側の一部が、管端拡径部Ｃ側に向かってその径が小
さくなるテーパー面１２に形成され、このテーパー面１
２はスリーブ１の大径部３の内面のテーパー面１３に対
応し、鉛管側ナット５をスリーブ１の大径部３にねじ込
んだときに、弾性密封リング９が大径部３の内面に広面
積で密着するようになっている。A part of the outer surface of the elastic sealing ring 9 on the side of the expanded pipe end portion C is formed into a tapered surface 12 whose diameter decreases toward the expanded pipe end portion C side.
Reference numeral 2 corresponds to the taper surface 13 on the inner surface of the large diameter portion 3 of the sleeve 1, and when the lead tube side nut 5 is screwed into the large diameter portion 3 of the sleeve 1, the elastic sealing ring 9 spreads over the inner surface of the large diameter portion 3. It is designed to come into close contact with the area.
【００２４】また、上記ストッパーリング１０の内面
は、鉛管Ａの管端拡径部Ｃのテーパー面にぴったりと沿
うように、管端拡径部Ｃ側に向かって次第にその径が大
きくなるテーパー面に形成されている。このように、ス
トッパーリング１０の内面を、管端拡径部Ｃのテーパー
面に対応するテーパー面１１にすることにより、ストッ
パーリング１０を管端側に向かって強く押しても、スト
ッパーリング１０が管端側に移動せず、また、管端拡径
部Ｃも変形しない。Further, the inner surface of the stopper ring 10 has a tapered surface whose diameter gradually increases toward the tube end expanded portion C side so as to fit closely with the tapered surface of the tube expanded portion C of the lead tube A. Is formed in. In this way, by forming the inner surface of the stopper ring 10 into the tapered surface 11 corresponding to the tapered surface of the tube end enlarged diameter portion C, even if the stopper ring 10 is strongly pushed toward the tube end side, the stopper ring 10 is It does not move to the end side, and the pipe end expanded portion C does not deform.
【００２５】上記のように構成される管継手を使用して
鉛管Ａに樹脂管Ｂを接続するには次のように行なう。The resin pipe B is connected to the lead pipe A using the pipe joint constructed as described above as follows.
【００２６】まず、鉛管Ａに鉛管側ナット５を嵌め、そ
れからスリップリング８、弾性密封リング９、ストッパ
ーリング１０を順次、ストッパーリング１０が鉛管Ａの
管端側に位置するように鉛管Ａの外面に嵌める。First, the lead pipe side nut 5 is fitted on the lead pipe A, and then the slip ring 8, the elastic sealing ring 9 and the stopper ring 10 are successively arranged so that the stopper ring 10 is located on the pipe end side of the lead pipe A. Fit in.
【００２７】次に、鉛管Ａの管端に、拡径ポンチ等を打
ち込んで、管端を押し広げた管端拡径部Ｃを形成する。
この押し広げた管端拡径部Ｃの内側に、コア管１４を嵌
め入れる。このコア管１４の挿入により、鉛管Ａの管端
の変形が矯正される。Next, a diameter-expanding punch or the like is driven into the tube end of the lead tube A to form a tube-end expanded portion C in which the tube end is expanded.
The core pipe 14 is fitted into the inside of the expanded pipe end expanded portion C. By inserting the core tube 14, the deformation of the tube end of the lead tube A is corrected.
【００２８】この後、管端拡径部Ｃを形成し、かつコア
管１４を挿入した鉛管Ａの管端部に、スリーブ１の大径
部３を被せ、この大径部３の外面のねじ山に鉛管側ナッ
ト５をねじ込む。この鉛管側ナット５を続けてねじ込ん
でいくと、弾性密封リング９がスリップリング８を介し
て鉛管Ａの管端側に押されて大径部３の内面と鉛管Ａの
外面に密着し、鉛管Ａの管端にスリーブ１が水密状態で
接続される。この際、鉛管側ナット５を強く締め付けて
も、鉛管Ａの管端拡径部Ｃの外面には、ストッパーリン
グ１０が嵌められているため、鉛管Ａの管端拡径部Ｃの
変形が防止され、弾性密封リング９が管端から抜け出さ
ない。また、鉛管側ナット５の鍔７と弾性密封リング９
との間には、スリップリング８が嵌められているため、
鉛管側ナット５を回転させても、弾性密封リング９がね
じれたりしない。Thereafter, the large diameter portion 3 of the sleeve 1 is covered on the pipe end portion of the lead pipe A in which the pipe end enlarged diameter portion C is formed and the core pipe 14 is inserted, and the screw on the outer surface of the large diameter portion 3 is formed. Screw the lead tube side nut 5 into the mountain. When the lead pipe side nut 5 is continuously screwed in, the elastic sealing ring 9 is pushed to the pipe end side of the lead pipe A via the slip ring 8 and is brought into close contact with the inner surface of the large diameter portion 3 and the outer surface of the lead pipe A. The sleeve 1 is connected to the pipe end of A in a watertight state. At this time, even if the lead pipe side nut 5 is strongly tightened, the stopper ring 10 is fitted on the outer surface of the pipe end expanded portion C of the lead pipe A, so that the deformation of the pipe end expanded portion C of the lead pipe A is prevented. Therefore, the elastic sealing ring 9 does not come out from the tube end. Further, the flange 7 of the lead tube side nut 5 and the elastic sealing ring 9
Since the slip ring 8 is fitted between and,
Even if the lead tube side nut 5 is rotated, the elastic sealing ring 9 is not twisted.
【００２９】このようにして、鉛管Ａの管端にスリーブ
１を水密状態に接続した後、樹脂管側ナット４を被せた
樹脂管Ｂの管端面を、スリーブ１の小径部２の管端面
に、パッキン１６を介して合わせて、小径部２のねじ山
に樹脂管側ナット４をねじ込むと、樹脂管Ｂがスリーブ
１を介して鉛管Ａに接続される。樹脂管側ナット４を樹
脂管Ｂの管端面に嵌めるときには、樹脂管側ナット４の
鍔６と、樹脂管Ｂの管端に形成された外向きの鍔Ｄとの
間に、樹脂リング１７とパッキン１８を嵌め入れるよう
にする。In this way, after the sleeve 1 is connected to the pipe end of the lead pipe A in a watertight state, the pipe end face of the resin pipe B covered with the resin pipe side nut 4 is attached to the pipe end face of the small diameter portion 2 of the sleeve 1. When the resin pipe side nut 4 is screwed into the screw thread of the small diameter portion 2 through the packing 16, the resin pipe B is connected to the lead pipe A through the sleeve 1. When the resin pipe side nut 4 is fitted to the pipe end surface of the resin pipe B, the resin ring 17 is provided between the flange 6 of the resin pipe side nut 4 and the outward flange D formed on the pipe end of the resin pipe B. Make sure the packing 18 is fitted.
【００３０】[0030]
【発明の効果】以上のように、この発明によれば、円管
Ａと樹脂管Ｂを、ハンダ付け作業を行うことなく接続す
ることができるので、高水圧でも水漏れの心配がなく、
しかも接続作業を短時間に行える。また、接続部分のハ
ンダ腐食の心配もない。As described above, according to the present invention, since the circular pipe A and the resin pipe B can be connected without performing a soldering operation, there is no fear of water leakage even at high water pressure.
Moreover, connection work can be performed in a short time. In addition, there is no risk of solder corrosion at the connection.
【図１】この発明に係る管継手の使用状態を示す断面図FIG. 1 is a sectional view showing a usage state of a pipe joint according to the present invention.
【図２】同上の外面図FIG. 2 is an external view of the same as above.
【図３】従来例の断面図FIG. 3 is a sectional view of a conventional example.
Ａ 鉛管 Ｂ 樹脂管 Ｃ 管端拡径部 Ｄ 鍔 １ スリーブ ２ 小径部 ３ 大径部 ４ 樹脂管側ナット ５ 鉛管側ナット ６、７ 鍔 ８ スリップリング ９ 弾性密封リング １０ ストッパーリング １１、１２、１３ テーパー面 １４ コア管 １５ 鍔 １６ パッキン １７ 樹脂リング １８ パッキン A lead pipe B resin pipe C pipe end expanded portion D collar 1 sleeve 2 small diameter portion 3 large diameter portion 4 resin pipe side nut 5 lead pipe side nut 6, 7 collar 8 slip ring 9 elastic sealing ring 10 stopper ring 11, 12, 13 Tapered surface 14 Core tube 15 Tsuba 16 Packing 17 Resin ring 18 Packing
Claims (4)
径部２と、押し広げた鉛管Ａの管端拡径部Ｃの外面に被
せられる大径部３を有し、かつ小径部２と大径部３の外
面にねじ山を形成したスリーブ１と、このスリーブ１の
小径部２の外面にねじ止めされる、内面にねじ山を形成
した樹脂管側ナット４と、上記スリーブ１の大径部３の
外面にねじ止めされる、内面にねじ山を形成した鉛管側
ナット５とからなり、樹脂管側ナット４の端面に、樹脂
管Ｂの管端に形成された外向きの鍔Ｄに対面して内面が
樹脂管Ｂの外面に当接する鍔６を形成し、上記鉛管側ナ
ット５の端面に、内面が鉛管Ａの外面に当接する鍔７を
形成し、この鉛管側ナット５の鍔７と鉛管Ａの管端拡径
部Ｃとの間の鉛管Ａの外面に、鍔７から管端拡径部Ｃに
向かってスリップリング８、弾性密封リング９、ストッ
パーリング１０を順に嵌めたことを特徴とする管継手。1. A small-diameter portion 2 arranged between a lead pipe A and a resin pipe B, and a large-diameter portion 3 covering an outer surface of a pipe end enlarged-diameter portion C of the lead pipe A which has been spread and having a small diameter. A sleeve 1 in which a thread is formed on the outer surfaces of the portion 2 and the large diameter portion 3, a resin pipe side nut 4 having a thread on the inner surface, which is screwed to the outer surface of the small diameter portion 2 of the sleeve 1, and the sleeve 1. A lead pipe side nut 5 having a thread formed on the inner surface, which is screwed to the outer surface of the large diameter portion 3 of 1. Of the lead pipe side nut 5 is formed on the end surface of the lead pipe side nut 5, and the inner surface of the lead pipe side nut 5 is formed on the lead pipe side. On the outer surface of the lead pipe A between the collar 7 of the nut 5 and the pipe end expanded portion C of the lead pipe A, slip slip from the flange 7 toward the pipe end expanded portion C. A ring coupling, an elastic sealing ring 9, and a stopper ring 10 are fitted in this order.
管Ａの管端拡径部Ｃのテーパー面に対応するテーパー面
１１に形成されている請求項１記載の管継手。2. The pipe joint according to claim 1, wherein an inner surface of the stopper ring 10 is formed as a tapered surface 11 corresponding to a tapered surface of the pipe end enlarged diameter portion C of the lead tube A.
部Ｃ側の一部を、管端拡径部Ｃ側に向かって次第にその
径が小さくなるテーパー面１２に形成し、上記スリーブ
１の大径部３の内面に、テーパー面１２に対応するテー
パー面１３を形成したことを特徴とする請求項１又は２
記載の管継手。3. The sleeve is formed by forming a part of the outer surface of the elastic sealing ring 9 on the pipe end expanded portion C side into a tapered surface 12 whose diameter gradually decreases toward the pipe end expanded portion C side. 3. A taper surface 13 corresponding to the taper surface 12 is formed on the inner surface of the large diameter portion 3 of FIG.
The described pipe fitting.
め入れてある請求項１〜３のいずれかの項に記載の管継
手。4. The pipe joint according to claim 1, wherein the core pipe 14 is fitted inside the pipe end of the lead pipe A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6016344A JPH07224977A (en) | 1994-02-10 | 1994-02-10 | Pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6016344A JPH07224977A (en) | 1994-02-10 | 1994-02-10 | Pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07224977A true JPH07224977A (en) | 1995-08-22 |
Family
ID=11913779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6016344A Pending JPH07224977A (en) | 1994-02-10 | 1994-02-10 | Pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07224977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013048039A3 (en) * | 2011-09-30 | 2013-05-23 | 주식회사 우정메카트로닉스 | Pipe connector assembly and method for connecting a pipe using same |
| JP2017538073A (en) * | 2014-10-31 | 2017-12-21 | ニョン キム、ギ | Pipe coupling device |
-
1994
- 1994-02-10 JP JP6016344A patent/JPH07224977A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013048039A3 (en) * | 2011-09-30 | 2013-05-23 | 주식회사 우정메카트로닉스 | Pipe connector assembly and method for connecting a pipe using same |
| CN103328873A (en) * | 2011-09-30 | 2013-09-25 | 友情精密机电股份有限公司 | Pipe connector assembly and method for connecting a pipe using same |
| US9546748B2 (en) | 2011-09-30 | 2017-01-17 | Woojung Mechatronics Co., Ltd | Pipe connector assembly and method for connecting a pipe using the same |
| JP2017538073A (en) * | 2014-10-31 | 2017-12-21 | ニョン キム、ギ | Pipe coupling device |
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