JPH022032B2 - - Google Patents
Info
- Publication number
- JPH022032B2 JPH022032B2 JP58191570A JP19157083A JPH022032B2 JP H022032 B2 JPH022032 B2 JP H022032B2 JP 58191570 A JP58191570 A JP 58191570A JP 19157083 A JP19157083 A JP 19157083A JP H022032 B2 JPH022032 B2 JP H022032B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pipes
- packing material
- ring
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 37
- 238000012856 packing Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 4
- 230000006355 external stress Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000872 buffer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Description
【発明の詳細な説明】
本発明は、例えば河川の両堤岸に架設される水
管橋、いわゆる高架配管における管体の伸縮継手
構造に係り、更に詳しくは継管内に相対向する管
体を挿入して形成される継手部において、継管両
端部に予め設けられたリングガータで両管体を封
着するとともに、これら両管体の外周部に設けら
れた一対のフランジに複数の連結ボルトを配設
し、この複数の連結ボルトをバネ材の付勢により
張架することで、両管体が継管から抜脱しないよ
うに保持した管体の伸縮継手構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an expansion joint structure for pipe bodies in, for example, aqueduct bridges constructed on both banks of a river, so-called elevated pipes, and more specifically, the present invention relates to an expansion joint structure of pipe bodies in a so-called elevated pipe, for example, a water pipe bridge constructed on both banks of a river. In the joint part formed by the joint, both pipe bodies are sealed with ring garters provided in advance at both ends of the joint pipe, and a plurality of connecting bolts are arranged on a pair of flanges provided on the outer periphery of both pipe bodies. The present invention relates to an expansion joint structure of a tube body in which both tube bodies are held so as not to be pulled out of a joint pipe by tensioning the plurality of connecting bolts by biasing a spring member.
従来、高架上にて管体を配管した場合には、温
度変化による管自体の膨張・収縮また管体内を流
れる流体のポンプ送圧による圧変化、更には地震
や近接されたクレーンの走行時による振動等によ
つて配管亀裂などが生じ、外部応力が過大な時に
はジヨイント部分で配管の抜脱する事故が起こる
ことがあつた。その防止策として配管スパンを小
さくするとともに、ジヨイントを強固にしてい
た。 Conventionally, when piping is installed on an elevated structure, the pipe itself expands and contracts due to temperature changes, pressure changes due to pumping of fluid flowing inside the pipe, and even earthquakes and the movement of nearby cranes. Piping cracks occur due to vibrations, etc., and when external stress is excessive, accidents can occur where the pipe comes off at the joint. To prevent this, the piping span was made smaller and the joints made stronger.
例えば第１図で示すように、提岸に橋台１２，
１２を設け、その橋台１２，１２間に架台を有す
る橋脚１３を配設して河川ｒ間に配管１１，１１
を架け渡していた。 For example, as shown in Fig. 1, abutments 12,
12 is provided, and a pier 13 having a pedestal is arranged between the abutments 12, 12, and piping 11, 11 is installed between the river r.
was spanning the bridge.
橋台１２、橋脚１３、橋台１２にはそれぞれに
ジヨイントα1，α2，α3を設け、配管１１，１１の
屈曲部ａ−ｂ及びｄ−ｅでは橋台１２，１２によ
つてそれぞれの配管１１に直接外部応力が与えら
れぬ構造としていた。その為、橋台１２，１２及
び橋脚はマツシブな基礎杭１４，１４…等の上に
構築する必要があり、全体として外部応力をバラ
ンスよく排除吸収するものではなかつた。 The abutment 12, pier 13, and abutment 12 are provided with joints α 1 , α 2 , and α 3 , respectively, and the abutments 12 and 12 provide joints α 1 , α 2 , and α 3 , respectively, and the abutments 12 and 12 provide joints α 1 , α 2 , and α 3 . The structure was such that no external stress was applied directly to the structure. Therefore, the abutments 12, 12 and piers had to be constructed on the sturdy foundation piles 14, 14, etc., and as a whole, external stress could not be eliminated and absorbed in a well-balanced manner.
そこで本発明は、配管の継手部として伸縮自在
な継手構造を提供することにあり、この継手構造
によつて外部応力を緩衝して吸収する。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a flexible joint structure as a pipe joint, and this joint structure buffers and absorbs external stress.
しかも配管の抜脱をも防止することを目的と
し、この目的を達成する為に、継管の両端部でリ
ングガータにより封着するとともに、一対のフラ
ンジに連結ボルトを挿通してバネ材により付勢し
て張架し、管体相互を保持する継手構造を提供す
る。 Moreover, the purpose is to prevent the piping from coming off, and in order to achieve this purpose, both ends of the joint pipe are sealed with ring garters, and connecting bolts are inserted through the pair of flanges and attached with spring material. To provide a joint structure for tensioning and holding the tubes together.
よつて上述したマツシブな橋台等を用いること
なく応力を緩衝吸収でき、しかも一体的に高架配
管しようとするものである。 Therefore, stress can be buffered and absorbed without using the above-mentioned muscular bridge abutments, and moreover, it is intended to be an integral elevated piping system.
以下本発明に係る伸縮継手の構造を図面に基づ
き詳細に説明する。 Hereinafter, the structure of the expansion joint according to the present invention will be explained in detail based on the drawings.
第２図は、本発明に係る管体の伸縮継手構造を
示す側面図である。 FIG. 2 is a side view showing a tube expansion joint structure according to the present invention.
この伸縮継手構造は配管１，１が相対向する状
態において継管２内に挿入され、しかも継管２の
両端部にはリングガータ３が環装されている。 This expansion joint structure is inserted into a joint pipe 2 with the pipes 1 and 1 facing each other, and ring garters 3 are encircled at both ends of the joint pipe 2.
このリングガータ３は配管１継管２の端部とを
密封させる為の外装体で、全体をナツトによつて
接続されたリング状を成し、第４図に示す如く、
断面略状を成すハウジング３１には、受材２１
が圧接する凹部３３と、弾性パツキン材２２が圧
接する内側切欠部３４が形成されている。 This ring garter 3 is an exterior body for sealing the end of the pipe 1 and the joint pipe 2, and has a ring shape connected by a nut as a whole, as shown in Fig. 4.
A receiving material 21 is attached to the housing 31 which has a roughly shaped cross section.
A recess 33 with which the elastic packing material 22 is pressed, and an inner notch 34 with which the elastic packing material 22 is pressed are formed.
すなわち、当該リングガータ３１はナツト３２
を圧締することで配管１の径中心方向に挾められ
る。 That is, the ring garter 31 is connected to the nut 32.
By clamping, the pipe 1 is clamped in the radial center direction of the pipe 1.
一方両配管１，１の外周部には環体状のフラン
ジ４，４が溶接等の手段により固定されている。
しかもフランジ４，４には後述する連結ボルト
５，５…を挿入するための孔がそれぞれ対応して
適宜に設けられている。また補強用のステイフナ
ー４１，４１…が配管１上に立設され、配管１、
ステイフナー４１、フランジ４がそれぞれ一体的
に溶接等の手段により固着されている。 On the other hand, annular flanges 4, 4 are fixed to the outer peripheries of both pipes 1, 1 by means such as welding.
Moreover, the flanges 4, 4 are appropriately provided with corresponding holes for inserting connection bolts 5, 5, etc., which will be described later. In addition, stiffeners 41, 41... for reinforcement are erected on the pipe 1, and the pipe 1,
The stiffener 41 and the flange 4 are each integrally fixed by means such as welding.
更にフランジ４，４の外側面の連結ボルト５，
５…突出部にはスプリング等のバネ材６，６が嵌
挿され、二重ナツト６１，６１…を螺着させるこ
とにより、適宜な付勢力が与えられている。 Further, connecting bolts 5 on the outer surfaces of the flanges 4, 4,
5... Spring members 6, 6 such as springs are fitted into the protruding portions, and appropriate biasing force is applied by screwing double nuts 61, 61...
すなわち両配管１，１間においてはフランジ
４，４とバネ材６，６を介して連結ボルト５，５
…が両配管１，１を近接させる方向の付勢力をも
つて張架されている。 That is, between the two pipes 1, 1, the connecting bolts 5, 5 are connected via the flanges 4, 4 and the spring members 6, 6.
... is stretched with a biasing force in the direction of bringing the two pipes 1, 1 closer together.
第３図は当該伸縮継手構造の管軸に平行な断面
図である。すなわち上述したように配管１と１は
継管２内に挿入され、更に配管１と１はそれぞれ
に設けたフランジ４，４と連結ボルト５，５…を
介してバネ材６，６…により近接する方向に付勢
されている。 FIG. 3 is a cross-sectional view of the expansion joint structure parallel to the tube axis. That is, as described above, the pipes 1 and 1 are inserted into the joint pipe 2, and the pipes 1 and 1 are further brought closer to each other by the spring members 6, 6, etc. via the respective flanges 4, 4 and connecting bolts 5, 5, etc. is biased in the direction of
第４図は第３図のＸ部、すなわちリングガータ
３の断面拡大図である。 FIG. 4 is an enlarged cross-sectional view of the X section in FIG. 3, that is, the ring garter 3. FIG.
配管１には継管２の端部２ａに圧接する状態に
リング状の受材２１が嵌挿される。この受材２１
は頂面２１ａ、外面２１ｂ、内面２１ｃ、底面２
１ｄにより断面略台形を成している。すなわち、
そのうちの外面２１ｄが継管２の端部２ａに圧接
される。 A ring-shaped receiving member 21 is fitted into the pipe 1 so as to be in pressure contact with the end 2 a of the joint pipe 2 . This receiving material 21
are the top surface 21a, the outer surface 21b, the inner surface 21c, and the bottom surface 2.
1d forms a substantially trapezoidal cross section. That is,
The outer surface 21d of the pipe is pressed against the end 2a of the joint pipe 2.
一方配管１にテフロン等から成るリング状の弾
性パツキン材２２が嵌挿される。この弾性パツキ
ン材２２は、頂面２２ａ、内面２２ｂ、外面２２
ｃ、底面２２ｄにより断面略台形を成している。 On the other hand, a ring-shaped elastic packing material 22 made of Teflon or the like is fitted into the pipe 1. This elastic packing material 22 has a top surface 22a, an inner surface 22b, an outer surface 22
c, the bottom surface 22d forms a substantially trapezoidal cross section.
上記受材２１はその底面２１ｄを配管１側にし
て継管２の端部２ａと上記弾性パツキン材２２と
の間に嵌挿される。又上記弾性パツキン材２２も
その底面２２ｄを配管１側にして嵌挿される。 The receiving member 21 is fitted between the end 2a of the connecting pipe 2 and the elastic packing material 22 with its bottom surface 21d facing the pipe 1. The elastic packing material 22 is also fitted with its bottom surface 22d facing the pipe 1 side.
斯かる受台２１と弾性パツキン材２２に対し、
その各頂面２１ａ，２２ａ側から上述したリング
ガータ３を配置する。すなわち、リングガータ３
の凹部３３内に上記受台２１の頂面２１ａを配置
し、又内側切欠部３４を弾性パツキン材２２の頂
面２２ａに当てがつた状態にする。そしてリング
ガータ３のナツト３２を圧締すれば、リングガー
タ３は配管１の径中心方向に挾められる。 For such a pedestal 21 and elastic packing material 22,
The above-mentioned ring garter 3 is arranged from the top surfaces 21a and 22a side. That is, ring garter 3
The top surface 21a of the pedestal 21 is placed in the recess 33, and the inner notch 34 is brought into contact with the top surface 22a of the elastic packing material 22. When the nut 32 of the ring garter 3 is tightened, the ring garter 3 is clamped in the radial center direction of the pipe 1.
よつてリングガータ３は凹部３３の上面３３ａ
によつて受材２１を圧縮させる。受材２１が圧縮
すると底面２１ｄと配管１との圧接状態が得ら
れ、且つ外面２１ｄは膨出して継管２の端部２ａ
と圧接する。 Therefore, the ring gutter 3 is the upper surface 33a of the recess 33.
The receiving material 21 is compressed by. When the receiving material 21 is compressed, a pressure contact state is obtained between the bottom surface 21d and the pipe 1, and the outer surface 21d swells to form the end 2a of the joint pipe 2.
Pressure contact with.
又同様に弾性パツキン材２２もリングガータ３
の内側切欠部３４によつて圧縮され、その底面２
２ｄと配管１とは圧接し、且つ受材２１と弾性パ
ツキン材２２との両内面２１ｃ，２２ｂが夫々膨
出する状態となつて密着する。特に受材２１と弾
性パツキン材２２とは何れも上記の如く断面略台
形を成しているのでリングガータ３のナツト３２
を締め付ければ、夫々両内、外面は膨出し圧接力
が増す。しかもバネ材６による両配管１，１に近
接力によつても継管２２ａ−受材２１２１ａ−リ
ングガータ３３３ａ、内側切欠部３４−弾性パツ
キン材２２２２ａ，２２ｃ，２２ｄ−配管１を
夫々確実に圧接させることになり、配管１と継管
２の封止状態を完全にする。 Similarly, the elastic packing material 22 is also attached to the ring garter 3.
is compressed by the inner notch 34 of the bottom surface 2
2d and the pipe 1 are in pressure contact with each other, and both inner surfaces 21c and 22b of the receiving material 21 and the elastic packing material 22 are brought into close contact with each other in a state in which they bulge. In particular, since both the receiving material 21 and the elastic packing material 22 have a substantially trapezoidal cross section as described above, the nut 32 of the ring garter 3
When tightened, both inner and outer surfaces bulge, increasing the pressure welding force. Moreover, the proximity force of the spring material 6 to both the pipes 1, 1 ensures that the joint pipe 22a, the receiving material 2121a, the ring gutter 333a, the inner notch 34, the elastic packing materials 2222a, 22c, and 22d, and the pipe 1 are pressed together, respectively. This completes the sealing between the pipe 1 and the joint pipe 2.
以上の様な管体の伸縮継手構造では、管自体の
温度変化、更にはポンプ送圧による水圧変化、地
震等の外部応力によつて振れや伸縮が生じても、
それをバネ材の付勢力により十分に緩衝吸収する
ことができる。よつて何れかの配管１が近接する
方向に外力を受けても、又その反対に離反する方
向に外力を受けても、配管１−継管２−配管１に
おける封着状態は常に一定の圧接力にて維持され
る。 With the above-mentioned pipe expansion joint structure, even if swinging or expansion/contraction occurs due to temperature changes in the pipe itself, water pressure changes due to pump pressure, or external stresses such as earthquakes,
This can be sufficiently buffered and absorbed by the urging force of the spring material. Therefore, even if one of the pipes 1 receives an external force in the direction of approaching the other, or vice versa, the sealing state between the pipe 1, the joint pipe 2, and the pipe 1 always maintains a constant pressure. Maintained by force.
なおバネ材６，６に付勢力は、予め想定される
最大応力よりも大きく取つておけば上記緩衝吸収
効果が期待通りに発揮され得る。 Note that if the biasing force of the spring members 6, 6 is set to be larger than the maximum stress assumed in advance, the above-mentioned buffering and absorbing effect can be exhibited as expected.
更に継管２内に挿入される配管１，１の挿入代
を多くとることにより、緩衝吸収と相まつて継管
２から配管１，１が抜脱することがない。 Further, by providing a large insertion allowance for the pipes 1, 1 to be inserted into the joint pipe 2, the pipes 1, 1 are prevented from being pulled out from the joint pipe 2 due to buffer absorption.
よつて、第５図で示すように本発明の伸縮継手
構造j1，j2，j3をそれぞれ採用して、河川Ｒ間に
水管橋として配管１，１…を接続すれば、Ａ−
Ｂ，Ｂ−Ｃ，Ｃ−Ｄ，Ｄ−Ｅに生ずる伸縮や振れ
は一体的にこれらj1，j2，j3によつて緩衝吸収さ
れることになる。 Therefore, as shown in FIG. 5, if the expansion joint structures j 1 , j 2 , j 3 of the present invention are respectively adopted and the pipes 1, 1, . . . are connected between river R as an aqueduct bridge, A-
The expansion/contraction and vibration that occur in B, B-C, CD, and DE are collectively buffered and absorbed by these j 1 , j 2 , and j 3 .
従つてＡ，Ｂ，C.D，Ｅには従前の様なマツシ
ブな橋台や架台を必要としない。 Therefore, A, B, CD, and E do not require the conventional massive abutments or mounts.
以上の様に本発明の伸縮継手構造は、バネ材に
よつて予め配管を近接する方向に付勢しておくの
で、外部の伸縮や振れに十分追従することができ
ると共に、受材がリングガータの凹部内に配置さ
れているので、パツキン材の外れはもちろん継管
の抜脱も生じない。また構造も極めて簡単なの
で、高架配管のトータルコストも低廉な継手構造
として極めて実用性の高いものである。 As described above, in the expansion joint structure of the present invention, since the piping is biased in advance in the direction of proximity by the spring material, it is possible to sufficiently follow external expansion/contraction and vibration, and the receiving material can be attached to the ring garter. Since it is placed in the recess of the pipe, the packing material does not come off, and the joint pipe does not come off. Furthermore, since the structure is extremely simple, the total cost of elevated piping is low, making it an extremely practical joint structure.
第１図は、従来の継手構造を用いて高架配管し
た状態を示す説明図、第２図は、本発明の伸縮継
手構造を説明する側面図、第３図は、本発明に係
る伸縮継手構造を説明する一部省略断面図、第４
図は、第３図におけるＸ部の拡大図、第５図は、
本発明に係る伸縮継手構造を用いた高架配管の説
明図である。
１，１……配管、２……継管、３，３……リン
グガータ、４，４……フランジ、５，５……連結
ボルト、６，６……バネ材。
Fig. 1 is an explanatory diagram showing a state in which elevated piping is installed using a conventional joint structure, Fig. 2 is a side view illustrating the expansion joint structure of the present invention, and Fig. 3 is an explanatory diagram showing the expansion joint structure according to the present invention. Partially omitted cross-sectional view explaining the 4th
The figure is an enlarged view of the X part in Figure 3, and Figure 5 is
It is an explanatory view of elevated piping using the expansion joint structure concerning the present invention. 1, 1... Piping, 2... Joint pipe, 3, 3... Ring gutter, 4, 4... Flange, 5, 5... Connection bolt, 6, 6... Spring material.
Claims (1)
し、該配管の外周部に設けた一対のフランジ間に
複数の連結ボルトを張架するとともに、該連結ボ
ルトとフランジ間に配設したバネ材により両配管
を近接する方向に付勢するものであつて、 前記両配管にリング状を成しかつ断面略台形の
弾性パツキン材を嵌挿するとともに、リング状を
成しかつ断面略台形状の受材を、前記継管の端部
と前記弾性パツキン材との間に配置する状態で配
管に嵌挿し、 前記パツキン材と受材の各頂面上に配置したリ
ングガータのナツトを圧締することによりリグガ
ータを配管の径中心方向に挾めてパツキン材及び
受材を圧縮させ、継管−受材−弾性パツキン材−
配管を夫々圧接することを特徴とする管体の伸縮
継手構造。[Claims] 1. Pipes are inserted from both sides of the joint pipe in a state where they face each other, and a plurality of connecting bolts are stretched between a pair of flanges provided on the outer periphery of the pipe, and the connecting bolts and the flanges are stretched between the connecting bolts and the flanges. Both pipes are biased in the direction of proximity by a spring material disposed between them, and an elastic packing material having a ring shape and a substantially trapezoidal cross section is inserted into both pipes, and a ring-shaped elastic packing material is inserted into the pipes. and a receiving material having a substantially trapezoidal cross section is inserted into the pipe in a state between the end of the joint pipe and the elastic packing material, and a ring is placed on each top surface of the packing material and the receiving material. By tightening the nut of the gutter, the rig gutter is clamped in the direction of the radial center of the pipe, compressing the packing material and the receiving material, and connecting pipe - receiving material - elastic packing material -
A pipe expansion joint structure characterized by pressure welding of pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19157083A JPS6084412A (en) | 1983-10-14 | 1983-10-14 | Expansion joint structure of pipe body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19157083A JPS6084412A (en) | 1983-10-14 | 1983-10-14 | Expansion joint structure of pipe body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6084412A JPS6084412A (en) | 1985-05-13 |
| JPH022032B2 true JPH022032B2 (en) | 1990-01-16 |
Family
ID=16276863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19157083A Granted JPS6084412A (en) | 1983-10-14 | 1983-10-14 | Expansion joint structure of pipe body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6084412A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2868742B2 (en) * | 1997-01-31 | 1999-03-10 | 皓一 北村 | Detachment prevention device for pipe connection |
| JP4625211B2 (en) * | 2001-09-19 | 2011-02-02 | 株式会社栗本鐵工所 | Water leakage prevention device for telescopic tube |
| JP4871112B2 (en) * | 2006-12-13 | 2012-02-08 | 株式会社栗本鐵工所 | Telescopic tube water leakage prevention device |
| US9589684B2 (en) * | 2012-05-16 | 2017-03-07 | Ge-Hitachi Nuclear Energy Americas Llc | Apparatuses and methods for controlling movement of components |
| JP6825505B2 (en) * | 2017-07-10 | 2021-02-03 | Ｊｆｅエンジニアリング株式会社 | Unaveraged force offset structure |
| JP6799659B2 (en) * | 2019-11-18 | 2020-12-16 | コスモ工機株式会社 | How to install pipe fittings |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647988B2 (en) * | 1977-09-09 | 1981-11-12 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54129026U (en) * | 1978-03-01 | 1979-09-07 | ||
| JPS5647988U (en) * | 1979-09-20 | 1981-04-28 |
-
1983
- 1983-10-14 JP JP19157083A patent/JPS6084412A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647988B2 (en) * | 1977-09-09 | 1981-11-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6084412A (en) | 1985-05-13 |
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