JPH0410469Y2 - - Google Patents
Info
- Publication number
- JPH0410469Y2 JPH0410469Y2 JP1986036031U JP3603186U JPH0410469Y2 JP H0410469 Y2 JPH0410469 Y2 JP H0410469Y2 JP 1986036031 U JP1986036031 U JP 1986036031U JP 3603186 U JP3603186 U JP 3603186U JP H0410469 Y2 JPH0410469 Y2 JP H0410469Y2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- pipe
- packing
- locking
- annular
- 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
- 238000012856 packing Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000005452 bending Methods 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000003518 caustics Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Joints With Sleeves (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、接続すべき管の両接続端に溝を設け
たり溶接による肩を設けることなく、無加工のま
まの状態で食い込みリングを使用して管の抜止め
を計るハウジング形管継手に関するものである。[Detailed description of the invention] [Field of industrial application] This invention uses a biting ring in an unprocessed state without providing grooves or welding shoulders at both connecting ends of the pipes to be connected. This relates to a housing-type pipe joint that prevents pipes from being pulled out.
［従来の技術］
従来、実公昭56−39833号公報にて開示された
第８図のごとく、接続すべき管の両接続端にわた
つてまたぐ環状のパツキンと、このパツキンの両
側に接続すべき管の外周に食い込む内側がのこ歯
状で、外側が互いに外方へ小径になるテーパ状の
１対の割リングとを被嵌し、これらを複数割した
筒状で、かつ内周面中央部にパツキン圧着用凹
溝、内周面両端部に外端側が次第に小径になる割
リング係合用テーパ溝をそれぞれ設けたハウジン
グによつて外周側から締付け、そして管接続後は
管に引抜力が作用した時、ハウジングのテーパ面
に係合した割リングが外方に移動するに連れて縮
径することにより、更に強く管に食い込み管の引
抜き阻止力が働くハウジング形管継手が知られて
いる。[Prior Art] Conventionally, as shown in Fig. 8 disclosed in Japanese Utility Model Publication No. 56-39833, a ring-shaped packing straddles both connecting ends of pipes to be connected, and a ring-shaped packing to be connected on both sides of this packing. It is fitted with a pair of split rings that have a sawtooth shape on the inside that bites into the outer periphery of the tube, and a tapered shape on the outside that becomes smaller in diameter toward each other, and is cylindrical and has a plurality of split rings, and the center of the inner circumferential surface. The housing is equipped with a concave groove for crimping the gasket, and a tapered groove for engaging the split ring on both ends of the inner circumferential surface, with the outer end gradually becoming smaller in diameter.The housing is tightened from the outer circumferential side, and after the pipe is connected, a pulling force is applied to the pipe. A housing-type pipe joint is known in which, when the split ring engages with the tapered surface of the housing, the diameter decreases as it moves outward, thereby biting into the pipe more strongly and exerting a force to prevent the pipe from being pulled out. .
上記管継手では、ハウジングを締付けたとき、
割リングが溝の大径側にずれ動く恐れがあり、実
際には管の抜止めに対する信頼性は低い。またこ
れを克服しながら管接続を行わなければならない
から接続作業が面倒である。また割リングは、一
般的にのこ歯状であるため食い込み深さが比較的
浅く、たとえば樹脂被覆管の接続に際して樹脂被
覆部がめくれて管が抜外れる恐れがあり強固に引
抜き阻止力が得られなかつた。又管の引抜力と軸
方向の圧縮力が交互に加わる配管、あるいは圧縮
力のみが加わる配管では、割リングの管外周への
食い込みがほとんどなく、配管の信頼性が乏しい
ものであつた。 With the above pipe fitting, when the housing is tightened,
There is a risk that the split ring may shift toward the larger diameter side of the groove, and the reliability of preventing the pipe from coming out is actually low. Furthermore, since the pipes must be connected while overcoming this problem, the connection work is troublesome. In addition, since split rings are generally serrated, the depth of bite is relatively shallow.For example, when connecting a resin-coated pipe, there is a risk that the resin-coated portion may peel off and the pipe may be pulled out. I couldn't help it. In addition, in piping to which a tube drawing force and axial compression force are applied alternately, or to piping to which only compression force is applied, the split ring hardly bites into the outer periphery of the tube, resulting in poor reliability of the piping.
［考案が解決しようとする課題］
以上のように管の係止性能に関し種々の問題点
があるが、更に課題としてハウジングの外端部の
隙間などから異物が侵入した場合、これがパツキ
ン部まで到達してパツキンを傷つけることがあ
る。また、腐食性の物質等が侵入すると、割リン
グ及び食い込み部が腐食し係止性能が劣ることに
なる。更にパツキンのシール性能が破壊され流体
漏れが発生することがあつた。本考案は外部から
の異物の侵入並びにシール部の信頼性を向上した
ハウジング形管継手を提供するものである。[Problems to be solved by the invention] As mentioned above, there are various problems related to the locking performance of the pipe, but an additional problem is that when foreign matter enters through the gap at the outer end of the housing, it can reach the seal part. Doing so may damage the padskin. Furthermore, if corrosive substances or the like enter, the split ring and biting portion will corrode, resulting in poor locking performance. Furthermore, the sealing performance of the seal was destroyed, causing fluid leakage. The present invention provides a housing-type pipe joint that prevents foreign matter from entering from the outside and improves the reliability of the seal portion.
［課題を解決するための手段］
本考案は、接続すべき管を互いに突き合わせた
両接続管端部の外周を包囲するパツキンを備え、
管周上複数個に分割されたハウジングを互いに締
結して前記管を接続するハウジング形管継手にお
いて、前記両接続管端部の外周に密着する環状の
パツキンと、内面に刃部を有し、端部外面は滑ら
かな球面としたグリツプ部材を前記管の全周にわ
たつて複数個配置し、前記グリツプ部材の外面を
包囲し少なくとも端部外面から突出する突出部を
有したゴムバンドで環状に一体保持してなる一対
のロツク部材と、前記両接続管端部のほぼ中央部
で前記環状のパツキンを収容する環状のパツキン
溝と、該溝の両外側部に前記ロツク部材を収容し
前記グリツプ部材の端部外面と接触する内周面を
両側が小径となる両テーパ面で横断面略傘形状に
形成した環状のロツクリング溝を有するハウジン
グとからなり、前記ハウジングを互いに締結した
とき、前記ロツク部材のゴムバンドが管外周面と
ロツクリング溝の内周面の双方に密着するように
したハウジング形管継手である。また、上記にお
いてパツキンとゴムバンドを一体的に形成したも
のを用いても良い。[Means for Solving the Problems] The present invention includes a packing that surrounds the outer periphery of both connecting pipe ends where the pipes to be connected are brought into contact with each other,
A housing-type pipe joint that connects the pipe by fastening a plurality of housings divided on the pipe circumference to each other, the housing-type pipe joint having an annular packing tightly attached to the outer periphery of both ends of the connecting pipe, and a blade portion on the inner surface, A plurality of grip members each having a smooth spherical end outer surface are arranged around the entire circumference of the tube, and a rubber band surrounding the outer surface of the grip member and having a protrusion protruding from at least the end outer surface is arranged in an annular shape. a pair of locking members held integrally; an annular packing groove for accommodating the annular packing at substantially the center of both ends of the connecting pipe; and a pair of locking members for accommodating the locking member in both outer sides of the groove; and a housing having an annular locking groove formed in a substantially umbrella-shaped cross section with tapered surfaces on both sides of which the inner circumferential surface that contacts the outer surface of the end of the member is in contact with the outer surface of the end of the member, and when the housings are fastened together, the locking groove This is a housing type pipe joint in which the rubber band of the member is in close contact with both the outer circumferential surface of the pipe and the inner circumferential surface of the lock ring groove. Furthermore, in the above, the packing and the rubber band may be integrally formed.
［作用］
ロツク部材のゴムバンドはグリツプ部材を包み
込むように装着し、少なくともグリツプ部材の端
部外面から突出する突出部を設けているのでハウ
ジングを締結した接続後の状態ではゴムバンドの
突出部はロツクリング溝内で管外周面とロツクリ
ング溝の内周面との双方に密着することになる。
従つて、腐食性異物の侵入に対しても、奥部への
侵入を阻止してグリツプ部材及びパツキンが腐食
しないよう保護する。また、パツキンとゴムリン
グとの二重シールを構成するので漏れに対する信
頼性が向上する。[Function] The rubber band of the lock member is attached so as to wrap around the grip member, and is provided with at least a protrusion that protrudes from the outer surface of the end of the grip member, so when the housing is fastened and connected, the protrusion of the rubber band is not visible. It comes into close contact with both the outer circumferential surface of the tube and the inner circumferential surface of the lock ring groove within the lock ring groove.
Therefore, even if corrosive foreign matter enters, it is prevented from penetrating into the inner part, and the grip member and packing are protected from corrosion. Furthermore, since the seal and the rubber ring constitute a double seal, reliability against leakage is improved.
また、パツキンとゴムバンドを一体的に形成す
ると施工性が極めて良いものとなる。 Furthermore, if the packing and rubber band are integrally formed, workability becomes extremely good.
［実施例］
本考案の実施例を図面を参照して説明する。第
１図は、本考案実施例を示す接続後の要部拡大断
面図である。接続すべき管１を互いに対向して突
合わせ、両接続端にわたつて股ぐ環状のリツプパ
ツキン３が嵌着している。このパツキン３の両端
部に第２図乃至第７図で示すごとくの内面に円周
刃部４ａを有し、外面は半球形状のグリツプ部材
４ｃを円周上複数個配置してゴムバンド４ｂで環
状に連結保持してなるロツク部材４を接続管１に
嵌着している。また複数割、たとえば２つ割の締
付用ハウジング５を設け、ボルトナツトで締付け
るようにしている。このハウジング５の内周面中
央部にパツキン３の背面を全周にわたつて均一に
圧縮するパツキン溝３ａと、このパツキン溝３ａ
の両端部の内面側に、ロツク部材４を収容し、上
部内周面はその両側に向かつて小径となる横断面
が傘形のテーパ面６１，６２を有すロツクリング
溝６が設けられている。尚このロツクリング溝６
の両端部にはストツパー面６３，６４が鍔状に設
けられている。ロツクリング溝６の軸線方向の長
さおよびテーパ角度は、ロツク部材４の円周刃部
４ａが所定深さ管１に食い込む様にグリツプ部材
４ｃの径４ｄよりも長い長さ、角度に設定してあ
る。[Example] An example of the present invention will be described with reference to the drawings. FIG. 1 is an enlarged cross-sectional view of the main parts after connection, showing an embodiment of the present invention. The pipes 1 to be connected are faced and abutted against each other, and an annular lip packing 3 is fitted over both connection ends. The gasket 3 has a circumferential blade portion 4a on its inner surface at both ends as shown in FIGS. 2 to 7, and a plurality of hemispherical grip members 4c are arranged on the circumference on its outer surface, and a rubber band 4b is formed on the outer surface. A locking member 4 connected and held in an annular shape is fitted into the connecting pipe 1. Further, a plurality of parts, for example, a two-part tightening housing 5 is provided, and the housing 5 is tightened with bolts and nuts. A packing groove 3a for uniformly compressing the back surface of the packing 3 over the entire circumference is provided in the center of the inner circumferential surface of the housing 5;
The locking member 4 is housed on the inner surface of both ends of the locking groove 6, and the upper inner peripheral surface thereof is provided with a locking groove 6 having tapered surfaces 61 and 62 having an umbrella-shaped cross section and a smaller diameter toward both sides. . This lock ring groove 6
At both ends thereof, stopper surfaces 63 and 64 are provided in the shape of flanges. The axial length and taper angle of the lock ring groove 6 are set to be longer than the diameter 4d of the grip member 4c so that the circumferential blade portion 4a of the lock member 4 bites into the pipe 1 to a predetermined depth. be.
ロツク部材４は、少なくともハウジングを締付
けた状態において管外周面１１とロツクリング溝
６の内周面にゴムバンド４ｂが相方に接触して圧
着される様に、第２，３図のごとくグリツプ部材
４ｃの周囲の上部にグリツプ部材４ｃの上面を一
部包んで突出する突出部を設けてある。 The locking member 4 has a grip member 4c as shown in FIGS. 2 and 3, so that the rubber band 4b is in contact with and press-fitted to the tube outer circumferential surface 11 and the inner circumferential surface of the lock ring groove 6, at least when the housing is tightened. A protruding portion is provided at the upper part of the periphery of the grip member 4c so as to partially enclose the upper surface of the grip member 4c.
また第４，５図で示すごとく、ゴムバンド４ｂ
全体の高さが管外周面１１とロツクリング溝６の
内周面に接触する一様なものであつてもよい。 Also, as shown in FIGS. 4 and 5, the rubber band 4b
The entire height may be uniform so as to contact the outer circumferential surface 11 of the tube and the inner circumferential surface of the lock ring groove 6.
更に第６図に示すごとく、グリツプ部材４ｃの
上面全体も包んで円周刃部４ａより下端へ突出さ
せる様にゴムバンド４ｂの包囲を形成してもよ
い。更にまた接続時の施工性を良好とするために
第７図に示すごとく、ロツク部材４と中央部のリ
ツプパツキン３を一体に形成してもよい。 Furthermore, as shown in FIG. 6, the rubber band 4b may surround the entire upper surface of the grip member 4c and protrude from the circumferential blade portion 4a toward the lower end. Furthermore, in order to improve workability during connection, the locking member 4 and the central lip packing 3 may be formed integrally, as shown in FIG.
特にゴムバンドによるグリツプ部材４ｃの包囲
によつて、ハウジングを装着した時グリツプ部材
４ｃが管外周面側へ押付けられる様グリツプ部材
の上面にも係合するものが初期の食込みに対して
すぐれている。 Particularly, a rubber band that surrounds the grip member 4c and engages with the upper surface of the grip member so that the grip member 4c is pressed toward the outer circumferential surface of the tube when the housing is installed is excellent against initial digging. .
本実施例のハウジング形管継手を水道用鋼管口
径300Aについて確性試験した結果を下記する。
ハウジング締付けトルク：M22ボルト、18Kgf・
ｍ。 The results of an accuracy test of the housing type pipe joint of this example on a steel water pipe diameter of 300A are shown below.
Housing tightening torque: M22 bolt, 18Kgf
m.
Ａ 耐水圧試験結果、封入水圧70Kgf／cm2まで漏
れなし、70Kgf／cm2時の管の抜け量約10mm。A Water pressure test results show that there is no leakage up to a sealed water pressure of 70Kgf/ cm2 , and the amount of pipe leakage at 70Kgf/ cm2 is approximately 10mm.
Ｂ 曲げ試験結果、管内に水圧10Kgf／cm2の水圧
を加えた状態で中央部に曲げ荷重を加える。最
大曲げモーメント6700Kgf・ｍ。B. As a result of the bending test, a bending load is applied to the center of the pipe while a water pressure of 10 kgf/cm 2 is applied inside the pipe. Maximum bending moment 6700Kgf・m.
最大曲げ角度8.2度まで漏れなし。No leakage up to a maximum bending angle of 8.2 degrees.
Ｃ 繰返し加圧水圧試験、試料を組付けた状態で
水圧5Kgf／cm2と20Kgf／cm2の水圧を10秒毎に
繰返し加圧する。C Repeated pressurization Water pressure test: Water pressure of 5Kgf/cm 2 and 20Kgf/cm 2 is repeatedly applied every 10 seconds with the sample assembled.
繰返し回数10000回以上漏れその他の異常なし。No leaks or other abnormalities after 10,000 repetitions.
Ｄ 繰返し曲げ荷重試験、水圧10Kgf／cm2を封入
した状態で中央部に曲げ角度が1°になる曲げ荷
重を交互に２方向から加える。D. Repeated bending load test: A bending load with a bending angle of 1° is applied alternately from two directions to the center part with a water pressure of 10 kgf/cm 2 enclosed.
繰返し回数200回以上漏れその他の異常なし。Repeated over 200 times, no leaks or other abnormalities.
Ｅ 引張試験、水圧10Kgf／cm2を封入した状態で
直続した管の両端を引張る。E. Tensile test: Both ends of a directly connected tube are pulled with a water pressure of 10 kgf/cm 2 enclosed.
最大引張荷重49tまで漏れその他の異常なし。
その時の管の抜け量25mm。No leaks or other abnormalities up to the maximum tensile load of 49t.
At that time, the amount of pipe coming out was 25mm.
Ｆ 繰返し伸縮試験、水圧10Kgf／cm2を封入した
状態で引張量８mm、圧縮量６mm（全幅14mm）を
交互に行なう。F. Repeated expansion/contraction test, with a water pressure of 10 Kgf/cm 2 enclosed, tension amount 8 mm and compression amount 6 mm (total width 14 mm) are conducted alternately.
伸縮回数200回以上漏れその他の異常なし。No leaks or other abnormalities after 200 expansions and contractions.
Ｇ 外圧試験、試料を組付けて（試料内は大気
圧）管の両端を封止し加圧容器内に収容し、容
器内を水圧10Kgf／cm2に保持する。G. External pressure test: Assemble the sample (within the sample at atmospheric pressure), seal both ends of the tube, place it in a pressurized container, and maintain the water pressure inside the container at 10 Kgf/cm 2 .
72時間以上保持しても容器内の水圧は変化な
し。The water pressure inside the container does not change even if it is kept for more than 72 hours.
Ｈ 偏平伸縮試験、試料内に水圧10Kgf／cm2を加
え継手両側の管を外径５％偏平させた状態で伸
縮量±６mm（全幅12mm）の引張、圧縮荷重を交
互に加える。H Flattening/stretching test: Apply a water pressure of 10 kgf/cm 2 to the sample to flatten the tubes on both sides of the joint by 5% of the outer diameter, and then alternately apply tension and compression loads of ±6 mm (total width 12 mm) to the tube on both sides of the joint.
伸縮回数200回以上漏れその他の異常なし。No leaks or other abnormalities after 200 expansions and contractions.
Ｉ せん断試験、試料内に水圧10Kgf／cm2を封入
した状態で継手接続部の片側の管にせん断荷重
を加える。I Shear test: Apply a shear load to the pipe on one side of the joint connection with a water pressure of 10 Kgf/cm 2 sealed inside the sample.
せん断荷重35tまで漏れその他の異常なし。No leaks or other abnormalities up to a shear load of 35t.
その時のせん断変位量80mm。The shear displacement at that time was 80mm.
Ｊ 水没試験、試料を組付けた状態で水深さ3m
の水中に放置する。管の内外面接水。J Submersion test, 3m depth with sample assembled
Leave it in water. Water on the inside and outside of the pipe.
１ケ月以上放置後取出し観察、継手のグリツプ
部材の腐食状態変化なし。After being left unattended for over a month, I took it out and observed it, and there was no change in the corrosion state of the grip parts of the joint.
以上のごとく各種の苛酷な試験に対しても良好
な結果を示し、大口径の水道埋設管用継手として
充分な性能を得ることができた。 As mentioned above, it showed good results even in various severe tests, and was able to obtain sufficient performance as a joint for large-diameter underground water pipes.
尚本実施例では、グリツプ部材４ｃは外径４ｄ
の円筒状で内側の周囲に円周刃部４ａを形成した
が、外周を多角形状にしてもよく又内側の刃部を
多角形状の刃部に形成してもよく、又更に内側の
刃部を円筒状周囲に断続的に設けてもよい。 In this embodiment, the grip member 4c has an outer diameter of 4d.
Although the circumferential blade portion 4a is formed around the inner circumference of the cylindrical shape, the outer circumference may be polygonal, or the inner blade portion may be formed into a polygonal blade portion. may be provided intermittently around the cylindrical periphery.
この様な構成にしたから２つ割のハウジング５
を締付けると、ロツク部材４の円周刃部４ａは、
円周上ゴムバンド４ｂと交互に設けられているた
め、ロツク部材４の背面から押圧されて管１，２
外周面に容易に食い込み、双方の管１，２は、ハ
ウジング５に係止される。更に管接続後、管の加
熱冷却による管に引抜力と軸方向の圧縮力が交互
に加わつた場合、あるいは圧縮力のみが加わつた
場合でも、ロツク部材４は、ロツクリング溝６の
傘形テーパ内周面６１，６２の作用によつて更に
深く食い込み、軸方向どちらの向きに対しても安
定して強力な管係止性能が得られると共に、ロツ
クリング溝の長さをグリツプ部材の径４ｄより長
くしてあるため、その分伸縮性能が発揮出来て配
管の安全性が計れる。又グリツプ部材の背面側の
断面が滑らかな球面に形成してあるためロツクリ
ング溝の傘形テーパ内周面６１，６２に対してス
ムーズに滑り、グリツプ部材の縮径が行われやす
く又、管外周面への食い込みも無理なく行われ
る。特に管１が樹脂被覆管の場合、被覆部と共に
管本体まで完全に食い込み又管への食い込み深さ
もストツパー面６３，６４によつて所定の深さに
定めることが出来、最適の食い込み状態を得るこ
とができる。更にゴムバンド４ｂは、弾性体で容
易に伸縮するので管への装着が容易である。 With this configuration, the housing 5 is divided into two parts.
When tightened, the circumferential blade portion 4a of the lock member 4 will
Since they are provided alternately with the circumferential rubber bands 4b, they are pressed from the back side of the locking member 4 and the tubes 1, 2
It easily bites into the outer peripheral surface, and both tubes 1 and 2 are locked to the housing 5. Furthermore, even if a pulling force and an axial compressive force are applied alternately to the pipe due to heating and cooling of the pipe after the pipe is connected, or even if only a compressive force is applied, the locking member 4 will remain in the umbrella-shaped taper of the locking groove 6. Due to the action of the peripheral surfaces 61 and 62, it bites deeper and provides stable and strong pipe locking performance in both axial directions, and the length of the locking groove is longer than the diameter 4d of the grip member. Because of this, the expansion and contraction performance can be demonstrated accordingly, and the safety of the piping can be measured. In addition, since the cross section of the back side of the grip member is formed into a smooth spherical surface, it slides smoothly on the umbrella-shaped tapered inner circumferential surfaces 61 and 62 of the locking groove, making it easy to reduce the diameter of the grip member. It also cuts into the surface easily. In particular, when the tube 1 is a resin-coated tube, the coating part and the tube body are completely bitten into the tube, and the depth of biting into the tube can be set to a predetermined depth by the stopper surfaces 63 and 64, thereby obtaining the optimum biting state. be able to. Further, since the rubber band 4b is an elastic body and easily expands and contracts, it is easy to attach it to the tube.
［効果］
本考案のハウジング形管継手は、グリツプ部材
の周囲がゴムバンドで包囲され、ハウジングの締
め付けによつてグリツプ部材周囲のゴムバンドが
管外表面とロツクリング溝の内周面との間で圧縮
され双方に密着するので、外部からの水や腐食性
物質の侵入が阻止されると共に、グリツプ部材の
内面刃部と管への食い込み部分の腐食を防止す
る。そして、パツキンのシール性能を保つことが
でき二重シール構造としてシール部の信頼性が高
いものとなつた。[Effect] In the housing-type pipe joint of the present invention, the grip member is surrounded by a rubber band, and when the housing is tightened, the rubber band around the grip member is moved between the outer surface of the pipe and the inner peripheral surface of the locking groove. Since it is compressed and tightly adheres to both sides, it prevents water and corrosive substances from entering from the outside, and also prevents corrosion of the inner blade part of the grip member and the part that bites into the pipe. Moreover, the sealing performance of the seal can be maintained, and the reliability of the seal part is high due to the double seal structure.
第１図乃至第７図は、本考案の実施例を示し、
第１図は接続後の要部拡大断面図、第２図はロツ
ク部材を示す図、第３図は第２図の一部断面側面
図、第４図は別の実施例のロツク部材を示す図、
第５図は第４図の一部断面側面図、第６図は更に
別の実施例のロツク部材を示す要部断面図、第７
図はリツプパツキンとロツク部材を一体にしたも
のを示す図、第８図は従来の管継手を示す要部断
面図である。
１……管、３……パツキン、４……ロツク部
材、５……ハウジング、６……ロツクリング溝、
４ａ……円周刃部、４ｂ……ゴムバンド、４ｃ…
…グリツプ部材。
1 to 7 show embodiments of the present invention,
Fig. 1 is an enlarged sectional view of the main part after connection, Fig. 2 is a view showing the lock member, Fig. 3 is a partially sectional side view of Fig. 2, and Fig. 4 is a lock member of another embodiment. figure,
5 is a partially sectional side view of FIG. 4, FIG. 6 is a sectional view of a main part showing a lock member of another embodiment, and FIG.
The figure shows an integrated lip packing and locking member, and FIG. 8 is a sectional view of a main part of a conventional pipe joint. 1...Pipe, 3...Packing, 4...Lock member, 5...Housing, 6...Lock ring groove,
4a...Circumferential blade part, 4b...Rubber band, 4c...
...Grip member.
Claims (1)
端部の外周を包囲するパツキンを備え、管周上
複数個に分割されたハウジングを互いに締結し
て前記管を接続するハウジング形管継手におい
て、 前記両接続管端部の外周に密着する環状のパ
ツキンと、 内面に刃部を有し、端部外面は滑らかな球面
としたグリツプ部材を前記管の全周にわたつて
複数個配置し、前記グリツプ部材の外面を包囲
し少なくとも端部外面から突出する突出部を有
したゴムバンドで環状に一体保持してなる一対
のロツク部材と、 前記両接続管端部のほぼ中央部で前記環状の
パツキンを収容する環状のパツキン溝と、該溝
の両外側部に前記ロツク部材を収容し前記グリ
ツプ部材の端部外面と接触する内周面を両側が
小径となる両テーパ面で横断面略傘形状に形成
した環状のロツクリング溝を有するハウジング
とからなり、 前記ハウジングを互いに締結したとき、前記
ロツク部材のゴムバンドが管外周面とロツクリ
ング溝の内周面の双方に密着するようにしたこ
とを特徴とするハウジング形管継手。 ２ 前記環状のパツキンと該パツキンの両外側に
位置する一対のロツク部材のゴムバンドを一体
的に形成したことを特徴とする実用新案登録請
求の範囲第１項記載のハウジング形管継手。[Claims for Utility Model Registration] 1. The pipe is provided with a packing that surrounds the outer periphery of the ends of both connecting pipes where the pipes to be connected are brought into contact with each other, and the pipes are connected by fastening together housings that are divided into a plurality of parts on the pipe circumference. The housing-type pipe joint includes: an annular gasket tightly attached to the outer periphery of the ends of both connecting pipes; and a grip member having a blade portion on the inner surface and a smooth spherical outer surface of the end extending around the entire circumference of the pipe. a pair of locking members, which are arranged in plural numbers and held together in an annular shape by a rubber band that surrounds the outer surface of the grip member and has a protrusion that protrudes from the outer surface of at least the end portion; An annular packing groove for accommodating the annular packing in the center, and a tapered inner circumferential surface that accommodates the locking member at both outer sides of the groove and has a smaller diameter on both sides. and a housing having an annular locking groove formed in a substantially umbrella-shaped cross section, and when the housings are fastened together, the rubber band of the locking member is in close contact with both the outer circumferential surface of the tube and the inner circumferential surface of the locking groove. A housing-type pipe fitting characterized in that it is configured to: 2. The housing type pipe joint according to claim 1, wherein the annular packing and the rubber bands of the pair of locking members located on both outer sides of the packing are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986036031U JPH0410469Y2 (en) | 1986-03-12 | 1986-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986036031U JPH0410469Y2 (en) | 1986-03-12 | 1986-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62147786U JPS62147786U (en) | 1987-09-18 |
| JPH0410469Y2 true JPH0410469Y2 (en) | 1992-03-16 |
Family
ID=30846060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986036031U Expired JPH0410469Y2 (en) | 1986-03-12 | 1986-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410469Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932987A (en) * | 1995-05-18 | 1997-02-07 | Nippon Buikutoritsuku Kk | Momentary connectable flexible pipe coupling mechanism and lock material for connecting pipe body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6259385B2 (en) * | 1982-10-01 | 1987-12-10 | Matsushita Electric Ind Co Ltd |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH041431Y2 (en) * | 1985-10-02 | 1992-01-17 |
-
1986
- 1986-03-12 JP JP1986036031U patent/JPH0410469Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6259385B2 (en) * | 1982-10-01 | 1987-12-10 | Matsushita Electric Ind Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62147786U (en) | 1987-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3905623A (en) | Pipe coupling with deformable outer sleeve | |
| US4779900A (en) | Segmented pipe joint retainer glands | |
| JPH0573958B2 (en) | ||
| JPH09196261A (en) | Pipe coupling structure | |
| JPH041431Y2 (en) | ||
| JPH0410469Y2 (en) | ||
| JPS6052355B2 (en) | Flange fitting for corrugated metal pipe | |
| JP4684476B2 (en) | Conduit connection device | |
| JP4082554B2 (en) | Pipe fittings and fittings | |
| JP4638798B2 (en) | Detachment prevention structure for pipe joints and method for strengthening prevention of detachment of pipe joints | |
| JP3380526B2 (en) | Conduit connection device | |
| JP2005090605A (en) | Piping connector | |
| JPS6318874Y2 (en) | ||
| JPS5813259A (en) | Arrangement of flange | |
| JP2843486B2 (en) | Fittings for stainless steel pipes | |
| JPH0620946Y2 (en) | Pipe fitting | |
| JPH0942550A (en) | Tube fitting | |
| JPS60544Y2 (en) | Pipe deviation prevention device at water pipe joints | |
| JP3117606B2 (en) | Pipe fittings | |
| JPH0144878Y2 (en) | ||
| JPH0532710Y2 (en) | ||
| JPH08109988A (en) | Pipe coupling device | |
| KR850002929Y1 (en) | Cast-iron pipe connecting device | |
| JP2984803B2 (en) | Pipe fittings | |
| JP2006038002A (en) | Housing type pipe joint |