JPS6329987Y2 - - Google Patents
Info
- Publication number
- JPS6329987Y2 JPS6329987Y2 JP1982116491U JP11649182U JPS6329987Y2 JP S6329987 Y2 JPS6329987 Y2 JP S6329987Y2 JP 1982116491 U JP1982116491 U JP 1982116491U JP 11649182 U JP11649182 U JP 11649182U JP S6329987 Y2 JPS6329987 Y2 JP S6329987Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- brake ring
- brake
- union socket
- joint body
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 230000008602 contraction Effects 0.000 description 6
- 239000002783 friction material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009933 burial Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
Description
【考案の詳細な説明】
本考案は、水道配管等における管の接続部分の
継手として使用され、特に継手部分において伸縮
が可能であると共にその伸縮の対応強度を調整で
きるようにしたブレーキ機構に関するものであ
る。[Detailed description of the invention] The present invention relates to a brake mechanism that is used as a joint for connecting pipes in water pipes, etc., and is particularly capable of expanding and contracting at the joint and adjusting the corresponding strength of the expansion and contraction. It is.
一般に配管の接続部分に伸縮継手を使用してい
るが、該伸縮継手においては止水性に重点を置
き、且つ所定の引張力が生じた時にそれに追従し
て伸びれば良い程度の強度で締め付けられてい
る。そして接続等により配管が終了した後に、配
管を埋める前に、接続部分が漏るかどうかを含め
て水圧試験が行われる。この試験のための水圧は
17.5Kgｆ／cm2であり、かなり強い水圧が掛けられ
るため、継手部分がほとんど伸びてしまい埋めら
れる時点ではもはや伸縮の機能が失われた状態に
なつてしまつている。従つて埋設後に地震等があ
つて引張り力が加えられても継手部分は伸びられ
ず、エルボ部分等に応力が集中してひび割れし漏
水の原因になつている。 Expansion joints are generally used at the connections of piping, but the emphasis on expansion joints is on water-tightness, and the joints are tightened to the extent that they only need to expand when a predetermined tensile force is generated. There is. After the piping is completed by connection, etc., and before the piping is buried, a water pressure test is conducted, including whether the connection will leak. The water pressure for this test is
17.5Kgf/cm 2 , a fairly strong water pressure is applied to the joint, so that the joint has almost completely expanded, and by the time it is buried, it has lost its ability to expand and contract. Therefore, even if a tensile force is applied due to an earthquake or the like after burial, the joint part cannot be stretched, and stress concentrates on the elbow part etc., causing cracks and water leakage.
本考案はこのような実情に鑑みなされたもので
あつて、その目的は水圧試験以上の所定の圧力に
ならないと伸縮しないように、漏水に対する締付
けとは関係なく接続部分に対応強度に合せたブレ
ーキが掛けられるようにした伸縮継手のブレーキ
機構を提供しようとするものである。 The present invention was developed in view of these circumstances, and its purpose is to provide a brake that matches the strength of the connection, regardless of tightening to prevent water leakage, so that it will not expand or contract unless a predetermined pressure greater than the water pressure test is reached. The purpose of this invention is to provide a brake mechanism for an expansion joint that can be applied.
この目的を達成するためになされた本考案は、
継手本体とユニオンソケツトとの間に嵌着させた
Ｏリング及びストツパーリングを支持するブレー
キリングをユニオンソケツトに嵌着させ、該ブレ
ーキリングの外周面をテーパー面に形成し、該テ
ーパー面に当接してブレーキリングの締付けを行
う袋ナツトを継手本体の外周面に螺合させ、前記
ブレーキリングの内周面に摩擦係数の大なる材料
を取付けたことを特徴とする伸縮継手のブレーキ
機構であつて、袋ナツトを締め付ければブレーキ
リングがユニオンソケツトに圧接し、それによつ
て伸縮の対応強度を増大させることができ、更に
はブレーキリングの内側にゴム等の摩擦係数の大
なる材料が取付けられており、これらによつて水
圧試験以上の水圧でも伸びないように連結させる
ことができ、正常な状態での埋設が可能となるの
である。 The present invention was developed to achieve this purpose.
A brake ring that supports the O-ring and stopper ring fitted between the joint body and the union socket is fitted into the union socket, the outer peripheral surface of the brake ring is formed into a tapered surface, and the outer peripheral surface of the brake ring is formed into a tapered surface. A brake mechanism for an expansion joint, characterized in that a cap nut that tightens the brake ring by coming into contact with the brake ring is screwed onto the outer peripheral surface of the joint body, and a material with a high coefficient of friction is attached to the inner peripheral surface of the brake ring. When the cap nut is tightened, the brake ring comes into pressure contact with the union socket, thereby increasing the strength to accommodate expansion and contraction.Furthermore, the inner side of the brake ring is made of a material with a high coefficient of friction such as rubber. are installed, and these allow the connections to be made so that they will not stretch even under water pressure exceeding the water pressure test, making it possible to bury them under normal conditions.
次に本考案を図示の実施例により詳しく説明す
ると、１は伸縮継手本体であり、該本体の一方の
端部にはユニオンソケツト２が摺動自在に挿着し
て取付けられる。継手本体１のユニオンソケツト
が取付けられる端部において、内側に段部３が形
成されると共に、外側にはねじ山４が形成され
る。継手本体の他方の端部側には、伸縮に必要の
ない管５が設けられると共に、該管５が突当るた
めのリング状のストツパー片６が内側に突出して
一体に形成されている。 Next, the present invention will be explained in detail with reference to the illustrated embodiment. Reference numeral 1 denotes an expansion joint body, and a union socket 2 is slidably inserted and attached to one end of the body. At the end of the joint body 1 to which the union socket is attached, a step 3 is formed on the inside and a thread 4 is formed on the outside. A tube 5 which is not necessary for expansion and contraction is provided on the other end side of the joint body, and a ring-shaped stopper piece 6 against which the tube 5 abuts is integrally formed and protrudes inward.
ユニオンソケツト２はその挿着側端縁の外側面
に外側へ張り出したリング状のストツパー７が一
体に形成されている。 A ring-shaped stopper 7 projecting outward is integrally formed on the outer surface of the insertion side edge of the union socket 2.
このような継手本体１とユニオンソケツト２と
の連結において、予めユニオンソケツト側に一対
の座金又はストツパーリング８，９と該ストツパ
ーリングでサンドイツチ状にしたパツキング又は
Ｏリング１０を嵌めると共に、外周面にテーパー
面１１ａを有すると共に内側にゴム等の摩擦係数
の大なる材料１１ｂを大半に亘つて取付けた割リ
ング状のブレーキリング１１を嵌め込み、継手本
体との連結時に一対のストツパーリング８，９と
Ｏリング１０とが段部３内に嵌り込み、ブレーキ
リング１１は継手本体の端縁に当接するようにす
る。そして、このブレーキリングのテーパー面１
１ａに当接させて袋ナツト１２をねじ山４に螺合
させ、袋ナツトの締付及び弛緩によつてブレーキ
リング１１の摩擦材料１１ｂとユニオンソケツト
２の外周面との当接圧及び摩擦係合とによるブレ
ーキ力が調整できるようになる。 In connecting the joint body 1 and the union socket 2 in this way, a pair of washers or stopper rings 8 and 9 and a packing or O-ring 10 formed into a sandwich-like shape with the stopper rings are fitted in advance on the union socket side. A split ring-shaped brake ring 11 having a tapered surface 11a on the outer circumferential surface and a material 11b with a large friction coefficient such as rubber attached on the inside is fitted, and a pair of stopper rings are fitted when connected to the joint body. 8, 9 and the O-ring 10 are fitted into the stepped portion 3, and the brake ring 11 is brought into contact with the edge of the joint body. And the tapered surface 1 of this brake ring
1a and screw the cap nut 12 onto the thread 4, and by tightening and loosening the cap nut, the contact pressure and friction between the friction material 11b of the brake ring 11 and the outer peripheral surface of the union socket 2 is increased. The braking force due to engagement can be adjusted.
茲に使用されるブレーキリング１１は、第３図
に示したものが使用されるが、切離し部１１ｃを
有する割リング状のものであり、切離し部の間隔
によつて締付度に限界が生ずるようにしてある。
更にこのブレーキリング１１の形状は、第４図に
示したように、継手本体側に当接する部分にフラ
ンジ部１１ｄを設けて、当接の安定とそれ自体の
強度を向上させるようにしても良い。 The brake ring 11 shown in Fig. 3 is used as the brake ring, but it is in the shape of a split ring with a cut-off part 11c, and there is a limit to the degree of tightening depending on the interval between the cut-off parts. It's like this.
Furthermore, as shown in FIG. 4, the shape of the brake ring 11 may be such that a flange portion 11d is provided at the portion that contacts the joint body to improve the stability of the contact and the strength of the brake ring itself. .
尚、継手本体の他方の端部に取付けられる管５
は、その接続端の内側にテーパーコア１３を嵌め
込み、外側にはリング１４を嵌合させ、このリン
グを押し込むようにして袋ナツト１５が螺合さ
れ、袋ナツトを締付けることによりテーパーコア
１３とリング１４とが挾み付けるように管５を接
続固定するのである。 In addition, the pipe 5 attached to the other end of the joint body
The taper core 13 is fitted inside the connecting end, the ring 14 is fitted on the outside, and the cap nut 15 is screwed together by pushing this ring.By tightening the cap nut, the taper core 13 and the ring are screwed together. The pipe 5 is connected and fixed so that the pipes 14 and 14 are sandwiched together.
このように構成されたブレーキ機構にあつて、
継手本体との間におけるユニオンソケツト２の伸
縮に係る摩擦度合、即ちブレーキ度合は、ブレー
キリング１１をユニオンソケツト２の外周面に圧
接させる度合によつて調整する。つまり、袋ナツ
ト１２を締付けると、ブレーキリング１１のテー
パー面１１ａを介してブレーキリングを縮径させ
るように作用し、ブレーキリングが縮径すれば摩
擦材料１１ｂとユニオンソケツト２との当接圧が
増大してブレーキ作用が増大し、ユニオンソケツ
トの伸縮における対応強度の規制がなされる。つ
まり、水道管配設に当り、伸縮継手を使用して水
道管連設後で且つ埋設する前に水圧試験等を行つ
て水漏れ等をチエツクする。この時に配管に掛け
られる水圧は17.5Kgｆ／cm2であり、この程度の水
圧では伸びないようなブレーキが掛つていれば良
いのである。従つて袋ナツト１２を締付けてブレ
ーキリング１１のユニオンソケツト２に対する当
接圧を加減し、20〜25Kgｆ／cm2で伸縮するように
すれば良い。これは実験的に締付強度を算定し、
トルクレンチ等の器具を用いて締付ければ良い。
このブレーキリング１１の締付けを行つても、止
水に関係するＯリング１０には何等影響を及ぼさ
ないので、止水効果等においての変化はない。 In the brake mechanism configured in this way,
The degree of friction related to expansion and contraction of the union socket 2 with the joint body, that is, the degree of braking, is adjusted by the degree to which the brake ring 11 is pressed against the outer peripheral surface of the union socket 2. In other words, when the cap nut 12 is tightened, the diameter of the brake ring is reduced through the tapered surface 11a of the brake ring 11, and when the diameter of the brake ring is reduced, the contact pressure between the friction material 11b and the union socket 2 is reduced. increases, the braking action increases, and the corresponding strength in expansion and contraction of the union socket is regulated. That is, when installing water pipes, water pressure tests are performed after the water pipes are connected using expansion joints and before they are buried to check for water leaks. The water pressure applied to the pipe at this time is 17.5Kgf/cm 2 , and it is sufficient to have a brake that will not stretch under this level of water pressure. Therefore, it is only necessary to tighten the cap nut 12 and adjust the contact pressure of the brake ring 11 against the union socket 2 so that the brake ring 11 expands and contracts at a rate of 20 to 25 kgf/cm 2 . This is done by calculating the tightening strength experimentally,
Tighten using a tool such as a torque wrench.
Even if this brake ring 11 is tightened, there is no effect on the O-ring 10, which is related to water stopping, so there is no change in the water stopping effect or the like.
以上説明したように本考案に係る伸縮継手のブ
レーキ機構は、袋ナツトとブレーキリングとを介
してユニオンソケツトが接続され、前記ブレーキ
リングの内側に摩擦材料が取付けられた構成にな
つているため、袋ナツトを締付けてブレーキリン
グを縮径し、それによつて摩擦材料とユニオンソ
ケツトとの当接圧を任意に調整できるので、伸縮
のためのブレーキ力を所定の値に調整することが
でき、埋設前の水圧試験によつても配管が伸びき
ることがなく、常に正常な状態で配管できると云
う優れた効果を奏する。 As explained above, the brake mechanism of the expansion joint according to the present invention has a structure in which a union socket is connected via a cap nut and a brake ring, and a friction material is attached to the inside of the brake ring. By tightening the cap nut and reducing the diameter of the brake ring, the contact pressure between the friction material and the union socket can be adjusted arbitrarily, so the braking force for expansion and contraction can be adjusted to a predetermined value. This has an excellent effect in that the piping does not fully stretch even during the water pressure test before burial, and the piping can always be installed in a normal condition.
又、ブレーキリングの内側に設けた摩擦係数の
大なる材料がユニオンソケツトの外周面に圧接し
て係合保持する構成であるため、そのユニオンソ
ケツトの外周面に傷を付けることが全くなくな
り、それによつてユニオンソケツトがポリエチレ
ン又はビニール等の樹脂製の管の場合に、傷の発
生による管の弱さが解消され、鋼管の場合には傷
による錆びの発生が解消され、いずれにしても長
期に亘つて水漏れの心配がなく使用できると云う
優れた効果も奏する。 In addition, since the material with a high friction coefficient provided inside the brake ring is configured to press against and maintain engagement with the outer circumferential surface of the union socket, there is no possibility of damaging the outer circumferential surface of the union socket. As a result, if the union socket is a pipe made of resin such as polyethylene or vinyl, the weakness of the pipe due to scratches will be eliminated, and if the union socket is a steel pipe, the occurrence of rust due to scratches will be eliminated. It also has the excellent effect of being able to be used for a long period of time without worrying about water leakage.
第１図は本考案に係る伸縮継手の一部を断面で
示した側面図、第２図は同伸縮継手の要部拡大断
面図、第３図は同伸縮継手に使用されているブレ
ーキリングの斜視図、第４図は他の実施例に係る
ブレーキリングの斜視図である。
１……継手本体、２……ユニオンソケツト、３
……段部、４……ねじ山、５……ねじ部、６……
ストツパー片、７……ストツパー、８，９……ス
トツパーリング、１０……Ｏリング、１１……ブ
レーキリング、１１ａ……テーパー面、１１ｂ…
…摩擦材料、１１ｃ……切離し部、１１ｄ……フ
ランジ部、１２……袋ナツト。
Fig. 1 is a side view showing a part of the expansion joint according to the present invention in cross section, Fig. 2 is an enlarged sectional view of the main part of the expansion joint, and Fig. 3 is a brake ring used in the expansion joint. A perspective view, FIG. 4 is a perspective view of a brake ring according to another embodiment. 1...Joint body, 2...Union socket, 3
...Stepped part, 4...Threaded part, 5...Threaded part, 6...
Stopper piece, 7...stopper, 8, 9...stopper ring, 10...O ring, 11...brake ring, 11a...tapered surface, 11b...
...Friction material, 11c... Separation portion, 11d... Flange portion, 12... Cap nut.
Claims (1)
たＯリング及びストツパーリングを支持する割リ
ング状のブレーキリングをユニオンソケツトに嵌
着させ、該ブレーキリングの外周面をテーパー面
に形成し、該テーパー面に当接してブレーキリン
グの締付けを行う袋ナツトを継手本体の外周面に
螺合させ、前記ブレーキリングの内周面の大半に
摩擦係数の大なる材料を取付けたことを特徴とす
る伸縮継手のブレーキ機構。 A split ring-shaped brake ring that supports the O-ring and stopper ring fitted between the joint body and the union socket is fitted into the union socket, and the outer peripheral surface of the brake ring is formed into a tapered surface. , a cap nut that tightens the brake ring by coming into contact with the tapered surface is screwed onto the outer peripheral surface of the joint body, and a material with a high coefficient of friction is attached to most of the inner peripheral surface of the brake ring. Brake mechanism of expansion joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11649182U JPS5921187U (en) | 1982-07-30 | 1982-07-30 | Brake mechanism of expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11649182U JPS5921187U (en) | 1982-07-30 | 1982-07-30 | Brake mechanism of expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5921187U JPS5921187U (en) | 1984-02-08 |
| JPS6329987Y2 true JPS6329987Y2 (en) | 1988-08-11 |
Family
ID=30268513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11649182U Granted JPS5921187U (en) | 1982-07-30 | 1982-07-30 | Brake mechanism of expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5921187U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074771A (en) * | 2001-09-04 | 2003-03-12 | Nippon Kokan Pipe Fittings Mfg Co Ltd | Heat-resistant pipe joint |
| JP5421155B2 (en) * | 2010-03-11 | 2014-02-19 | 未来工業株式会社 | Fluid fitting device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4954113U (en) * | 1972-08-14 | 1974-05-13 | ||
| JPS4984714U (en) * | 1972-11-10 | 1974-07-23 | ||
| JPS5044930U (en) * | 1973-08-24 | 1975-05-07 |
-
1982
- 1982-07-30 JP JP11649182U patent/JPS5921187U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5921187U (en) | 1984-02-08 |
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