JPH09178043A - Pipe line expansion/contraction structure and expansion/ contraction flexible structure - Google Patents
Pipe line expansion/contraction structure and expansion/ contraction flexible structureInfo
- Publication number
- JPH09178043A JPH09178043A JP7353307A JP35330795A JPH09178043A JP H09178043 A JPH09178043 A JP H09178043A JP 7353307 A JP7353307 A JP 7353307A JP 35330795 A JP35330795 A JP 35330795A JP H09178043 A JPH09178043 A JP H09178043A
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- pipe
- cover
- outer tube
- inner 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.)
- Granted
Links
- 230000008602 contraction Effects 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000004075 alteration Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 17
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints; Joints allowing movement
- F16L27/12—Adjustable joints; Joints allowing movement allowing substantial longitudinal adjustment or movement
- F16L27/127—Adjustable joints; Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
- F16L27/1275—Adjustable joints; Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by means of at least an external threaded bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
- Joints Allowing Movement (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は水道管、下水道管、
ガス管等の総ての管路の伸縮構造に関するものであり、
多数本の管路を連結して配管した場合に、その連結方向
に伸縮可能としたものである。The present invention relates to a water pipe, a sewer pipe,
It relates to the expansion and contraction structure of all pipelines such as gas pipes,
When a large number of pipes are connected and piped, the pipes can be expanded and contracted in the connecting direction.
【０００２】[0002]
【従来の技術】水道管、ガス管等の管路は地中に埋設し
て配管されたり、浄水場の貯水タンク内や川の上に架設
された水管橋の上に配管されたりしている。2. Description of the Related Art Pipelines such as water pipes and gas pipes are buried in the ground to be piped, or in a water tank of a water purification plant or on a water pipe bridge installed on a river. .
【０００３】[0003]
【発明が解決しようとする課題】これら管路は軟弱地盤
が沈下したり、地震や地殻変動などにより地盤沈下した
り、地盤に断層が生じたり、貯水タンクが地盤沈下によ
り傾いたりすると、管路が大きな歪を受けて、管路に亀
裂が入ったり、管路が破断したり、管路同士の連結が外
れたりし、そこから水やガスが漏れることがある。その
漏れが著しい場合は水が地上に溢れ出て水害が生じた
り、ガスが地上に漏れ出して火災の原因になるといった
危険があった。However, these pipelines are not suitable for soft ground subsidence, subsidence due to earthquakes or crustal movements, faults in the ground, and tilting of water storage tanks due to subsidence. Is subject to large strains, cracks may occur in the pipelines, the pipelines may break, or the pipelines may become disconnected, and water or gas may leak from there. If the leakage is significant, there is a risk that water will overflow to the ground and cause water damage, or gas will leak to the ground and cause a fire.
【０００４】[0004]
【課題を解決するための手段】本発明の目的は歪を受け
ても亀裂が入ったり、破断したり、連結が外れたりしな
いようにすることにある。この目的を達成するため本発
明では歪を受けると連結されている２以上の管路が伸縮
するようにしてある。又、回動も可能なようにしてあ
る。SUMMARY OF THE INVENTION An object of the present invention is to prevent cracking, breaking, and disconnection even when subjected to strain. To achieve this object, in the present invention, two or more pipe lines connected to each other expand and contract when subjected to strain. Further, it can be rotated.
【０００５】本発明のうち請求項１の管路の伸縮構造は
図１に示す様に、外管１の軸線方向の一端部２の内側
に、内管３の軸線方向の一端部４をその軸線方向にスラ
イド可能に差込み、両管１、３の差込み部の外周にカバ
ー５を被せてなり、内管３の外周のうち外管１の一端部
２よりも外側に内管ストッパー６が形成され、外管１の
一端部２の外周に外管ストッパー７とカバー係止部８が
形成され、カバー５のうち外管側端部には外管１の前記
カバー係止部８に係止可能な外管係止部９が形成され、
カバー５の他端側であって前記内管ストッパー６よりも
外側には同内管ストッパー６が係止するカバーストッパ
ー１０が形成されてなるものである。As shown in FIG. 1, the expansion / contraction structure of the pipe line according to claim 1 of the present invention has an axial end portion 4 of the inner pipe 3 inside the axial end portion 2 of the outer pipe 1. It is slidably inserted in the axial direction, and covers the outer peripheries of the insertion parts of both pipes 1 and 3, and an inner pipe stopper 6 is formed on the outer periphery of the inner pipe 3 outside the one end 2 of the outer pipe 1. The outer tube stopper 7 and the cover locking portion 8 are formed on the outer circumference of the one end 2 of the outer tube 1, and the outer tube side end of the cover 5 is locked to the cover locking portion 8 of the outer tube 1. A possible outer tube locking portion 9 is formed,
On the other end side of the cover 5 and outside the inner pipe stopper 6, a cover stopper 10 with which the inner pipe stopper 6 is locked is formed.
【０００６】本発明のうち請求項２の管路の伸縮可撓構
造は、内管３の軸線方向の他端部１１が他の連結管１２
に回動可能に連結されてなるものである。In the flexible structure for expanding and contracting a conduit according to claim 2 of the present invention, the other end portion 11 of the inner pipe 3 in the axial direction is another connecting pipe 12.
It is rotatably connected to.
【０００７】[0007]
【発明の実施の形態１】図１は本発明の管路の伸縮構造
の実施形態の一例を示すものである。これは金属製の外
管１と、それに差込んで軸線方向にスライド可能とした
金属製の内管３と、両管１、２の差込み部の外周に被せ
た金属製のカバー５と、ゴム製のパッキング１３とから
なる。First Embodiment FIG. 1 shows an example of an embodiment of a stretchable structure for a conduit according to the present invention. This is an outer tube 1 made of metal, an inner tube 3 made of metal that can be slid in the axial direction by inserting the outer tube 1, a cover 5 made of metal that covers the outer circumferences of the insertion portions of both tubes 1 and 2, and a rubber. And a packing 13 made of plastic.
【０００８】外管１はその軸線方向の一端部２を外側に
膨らませてその内側にパッキン収容部１４を形成し、そ
の一端部２の内面から内側にパッキンストッパー１３ａ
を突設し、同パッキンストッパー１３ａより外側にパッ
キン嵌合部１５を溝状に形成し、それより軸線方向の端
部寄り外周面に溝状のカバー係止部８を周方向にリング
状に形成し、それより更に軸線方向の端部寄り外周面に
外側に突出する外管ストッパー７を外管１の周方向にリ
ング状に形成してなる。The outer tube 1 has its axial end portion 2 bulged outward to form a packing accommodating portion 14 inside thereof, and a packing stopper 13a from the inner surface of the end portion 2 to the inside.
And a packing fitting portion 15 is formed in a groove shape on the outer side of the packing stopper 13a, and a groove-shaped cover locking portion 8 is formed in a ring shape in the circumferential direction on the outer peripheral surface near the end in the axial direction. The outer tube stopper 7 is formed in a ring shape in the circumferential direction of the outer tube 1 and is formed on the outer peripheral surface of the outer tube near the end in the axial direction.
【０００９】内管３には図１（ｂ）に示す様に外側に突
出する内管ストッパー６が形成されている。この内管ス
トッパー６は内管３の軽量化を図るため、内管３の外周
面のうち外管１の一端部２よりも外側で且つ外周縁の上
下の２箇所にのみ形成してある。The inner pipe 3 is formed with an inner pipe stopper 6 protruding outward as shown in FIG. In order to reduce the weight of the inner pipe 3, the inner pipe stopper 6 is formed only at two positions on the outer peripheral surface of the inner pipe 3 outside the one end 2 of the outer pipe 1 and above and below the outer peripheral edge.
【００１０】カバー５は図３に示す様に半円筒状に形成
されており、その軸線方向の一端に外管１のカバー係止
部８に係止する係止部９が内側に突出するように形成さ
れ、軸線方向の他端側であって内管ストッパー６よりも
外側に、内管ストッパー６が係止するカバーストッパー
１０が内側に突出するように形成され、更に、周方向両
端部に鍔１６が形成され、夫々の鍔１６に止め孔１７が
形成されている。そして本発明ではそのカバー５を図３
に示す様に２つ対向させて図１のように外管１と内管３
の差込み部の外周に被せ、図３に示す様に対向する２つ
のカバー５の鍔１６同士を突合わせ、その２つの鍔１６
の止め孔１７に図示されていないボルトを通して固定で
きるようにしてある。The cover 5 is formed in a semi-cylindrical shape as shown in FIG. 3, and an engaging portion 9 for engaging with the cover engaging portion 8 of the outer tube 1 is projected inward at one end in the axial direction thereof. Is formed on the other end side in the axial direction outside the inner pipe stopper 6, and a cover stopper 10 to which the inner pipe stopper 6 engages is formed so as to protrude inward. The collars 16 are formed, and the stopper holes 17 are formed in each of the collars 16. In the present invention, the cover 5 is shown in FIG.
As shown in FIG. 2, two pipes are opposed to each other and the outer pipe 1 and the inner pipe 3 are arranged as shown in FIG.
As shown in FIG. 3, the flanges 16 of the two opposing covers 5 are butted against each other, and the two flanges 16 are attached to each other.
A bolt (not shown) can be fixed in the stop hole 17 of the device.
【００１１】パッキング１３は図１、図４に示す様に内
管３との間を気密にするためのものであり、ゴムとか軟
質樹脂等によりリング状に成形されており、その断面形
状は図１に示すように横長にしてある。パッキング１３
の外周面には前記外管１のパッキンストッパー１３ａが
嵌合する凹溝１８がリング状に形成されており、それよ
りも外側でパッキング１３の外周面には、前記外管１の
パッキン嵌合部１５に嵌合する嵌合突部１９がリング状
に形成されている。As shown in FIGS. 1 and 4, the packing 13 is for hermetically sealing the space between the inner tube 3 and the packing 13. The packing 13 is formed of rubber or soft resin into a ring shape, and its cross-sectional shape is as shown in FIG. As shown in FIG. Packing 13
A ring-shaped groove 18 into which the packing stopper 13a of the outer tube 1 fits is formed on the outer peripheral surface of the outer tube 1, and the outer peripheral surface of the packing 13 on the outer side of the groove 18 fits the packing of the outer tube 1 The fitting protrusion 19 that fits into the portion 15 is formed in a ring shape.
【００１２】図１（ａ）における外管１はフランジ型の
ものであるが、外管１は図２（ａ）に示すＫ型、（ｂ）
に示すＡ型、（ｃ）に示すＴ型とか、これら以外の型の
ものであってもよい。The outer tube 1 in FIG. 1 (a) is of the flange type, but the outer tube 1 is of the K type shown in FIG. 2 (a), (b).
The type A shown in FIG. 3, the type T shown in (c), and other types may be used.
【００１３】本発明の管路の伸縮構造では外管１又は内
管３の一方又は双方に、それらの軸線方向への引張り力
が加わると両管１、３が相互に軸線方向にスライドす
る。この場合のスライド可能範囲は内管ストッパー６が
外管ストッパー７とカバーストッパー１０の間で移動可
能な範囲に限られる。In the expansion / contraction structure of the conduit of the present invention, when a tensile force is applied to one or both of the outer pipe 1 and the inner pipe 3 in the axial direction, both pipes 1 and 3 slide in the axial direction. In this case, the slidable range is limited to the range in which the inner pipe stopper 6 can move between the outer pipe stopper 7 and the cover stopper 10.
【００１４】[0014]
【発明の実施の形態２】本発明の第２の実施の形態を図
４に基づいて詳細に説明する。図４は本発明のうち請求
項２に記載されている管路の伸縮可撓構造を示すもので
ある。これは外管１と内管３の伸縮構造は図１の場合と
同じであり、異なるのは内管３を連結管１２と連結する
場合に、その連結を回動可能な可撓構造としたものであ
る。この可撓構造は次のように構成されている。Second Embodiment of the Invention A second embodiment of the present invention will be described in detail with reference to FIG. FIG. 4 shows a flexible structure for expanding and contracting a pipeline according to a second aspect of the present invention. The expansion and contraction structure of the outer pipe 1 and the inner pipe 3 is the same as that in the case of FIG. 1, except that when the inner pipe 3 is connected to the connecting pipe 12, the connection is a rotatable structure that can be rotated. It is a thing. This flexible structure is configured as follows.
【００１５】図４に示すように連結管１２の軸線方向の
一端部２２は外側に膨らむ円弧状に形成され、その先が
細く形成されており、その一端部２２の内側に内管３の
軸線方向の他端部１１を回動可能に差込んである。この
内管３の他端部１１には図５に示すように外側に突出す
る鍔２４が形成され、その鍔２４の周方向の一部に開口
部２５が形成されてなる。また、図４では開口部２５に
連結管１２の内側から図５に示す駒２６を当てがって同
開口部２５を閉塞し、その駒２６の外側から前記鍔２４
に連結管１２との気密性を保持するためのリング状のパ
ッキン２７を当てがい、そのパッキン２７の外側に連結
管１２の内側から図６に示す押し具２８を当てがい、そ
の押し具２８をボルト２９により内管３に取付けてな
る。尚、連結管１２の内周面１２ａの全面には円弧状の
部分だけに粉末塗装を施して、内管３との差込み部の回
動が円滑になるようにすると共に防蝕性が向上するよう
にしてある。As shown in FIG. 4, one end portion 22 of the connecting pipe 12 in the axial direction is formed in an arc shape that bulges outward, and the tip thereof is formed to be tapered, and the axial line of the inner pipe 3 is inside the one end portion 22. The other end 11 in the direction is rotatably inserted. As shown in FIG. 5, a flange 24 protruding outward is formed at the other end 11 of the inner pipe 3, and an opening 25 is formed at a part of the flange 24 in the circumferential direction. Further, in FIG. 4, a piece 26 shown in FIG. 5 is applied to the opening 25 from the inside of the connecting pipe 12 to close the opening 25, and the collar 24 is opened from the outside of the piece 26.
A ring-shaped packing 27 for maintaining airtightness with the connecting pipe 12 is applied to the inside of the connecting pipe 12, and a pressing tool 28 shown in FIG. 6 is applied to the outside of the packing 27 from the inside of the connecting tube 12, and the pressing tool 28 is attached. It is attached to the inner pipe 3 with a bolt 29. It should be noted that powder coating is applied only to the arc-shaped portion on the entire inner peripheral surface 12a of the connecting pipe 12 so that the insertion portion with the inner pipe 3 can smoothly rotate and the corrosion resistance is improved. I am doing it.
【００１６】前記の開口部２５は図５に示すように鍔２
４の外側に開口された外側開口部２５ａと、鍔２４の内
側に開口した内側開口部２５ｂとが連接されて鍔２４の
肉厚方向に開口され、また、外側開口部２５ａを内側開
口部２５ｂよりも幅広くし、更に、内側開口部２５ｂの
両側壁３０の下部に鍔２４の肉厚方向に一段凹ませた凹
部３１が形成されてなる。As shown in FIG. 5, the opening 25 is provided with a collar 2
4, the outer opening 25a opened to the outside of the collar 4 and the inner opening 25b opened to the inside of the collar 24 are connected to each other to be opened in the thickness direction of the collar 24, and the outer opening 25a is opened to the inner opening 25b. It is wider than the inner opening 25b, and further, a recess 31 is formed in the lower portion of both side walls 30 of the inner opening 25b, the recess 31 being recessed one step in the thickness direction of the collar 24.
【００１７】前記の駒２６は図５に示すように、前記開
口部２５の形状に合わせてある。即ち、開口部２５の外
側開口部２５ａと同じ形状に成形されて同外側開口部２
５ａを閉塞可能とした外側当接部２６ａの背面に、開口
部２５の内側開口部２５ｂと同じ形状に成形されて同内
側開口部２５ｂを閉塞可能とした内側当接部２６ｂが形
成され、内側当接部２６ｂの背面底部に開口部２５の凹
部３１と同じ形状に成形されて同凹部３１に嵌入可能な
嵌入部３３が形成されてなる。As shown in FIG. 5, the piece 26 is matched with the shape of the opening 25. That is, the outer opening 2a is formed in the same shape as the outer opening 25a of the opening 25.
An inner contact portion 26b formed to have the same shape as the inner opening portion 25b of the opening portion 25 and capable of closing the inner opening portion 25b is formed on the back surface of the outer contact portion 26a capable of closing the inner portion 5a. A fitting portion 33 that is formed in the same shape as the concave portion 31 of the opening 25 and can be fitted into the concave portion 31 is formed on the bottom surface of the back surface of the contact portion 26b.
【００１８】前記の押し具２８は図６に示す様に１３０
度の広がりをもつ円弧状に形成されており、その円弧の
一端部の外面が一段肉薄に成形されて外面重合部２８ａ
が形成され、円弧の他端部の内面が一段肉薄に成形され
て内面重合部２８ｂが形成され、この両重合部２８ａ及
び２８ｂとその中間とに止め孔２８ｃが貫通されてい
る。また、押し具２８の内面のうち円弧の一端部から外
面重合部２８ａの手前までの１２０度の範囲に、外側に
断面半円状に突出する突条２８ｄが形成されてなる。こ
の突条２８ｄは図４のようにパッキン２７の嵌合溝３４
に嵌合するものである。この押し具２８は３個用意し、
いずれかの押し具２８の内面重合部２８ｂに他の押し具
２８の外面重合部２９ａを重合させることにより円形の
リング状に組立てることができる。The pusher 28 is provided with a pusher 130 as shown in FIG.
The outer surface of one end portion of the circular arc is formed to be one step thinner, and the outer surface overlapped portion 28a is formed.
Is formed, the inner surface of the other end of the circular arc is formed to be one step thinner to form an inner surface overlapping portion 28b, and a stop hole 28c is penetrated between the both overlapping portions 28a and 28b and the middle thereof. Further, on the inner surface of the pusher 28, a ridge 28d protruding outward in a semicircular cross section is formed in the range of 120 degrees from one end of the arc to the front of the outer surface overlapping portion 28a. As shown in FIG. 4, the ridge 28d is fitted into the fitting groove 34 of the packing 27.
Is to be fitted. Prepare three pushers 28,
It is possible to assemble the circular ring shape by superposing the inner surface overlapping portion 28b of any one of the pressing members 28 on the outer surface overlapping portion 29a of the other pressing member 28.
【００１９】[0019]
【発明の効果】本発明の請求項１の管路の伸縮構造は外
管と内管をスライド可能としてあるため、軟弱地盤の沈
下、地震や地殻変動などにより地盤沈下したり、地盤に
断層が生じたり、貯水タンクが地盤沈下により傾いたり
しても管路が歪を受けにくくなり、管路に亀裂が入った
り、管路が破断したり、管路同士の連結が外れたりしに
くくなり、水やガスが漏れにくくなる。Since the expansion and contraction structure of the pipeline according to claim 1 of the present invention allows the outer pipe and the inner pipe to be slidable, the subsidence of the soft ground, the subsidence of the ground due to an earthquake or crustal movement, or the fault in the ground. Even if it occurs or the water tank is tilted due to ground subsidence, the pipeline is less likely to be distorted, cracks in the pipeline, the pipeline is ruptured, the connection between the pipelines becomes difficult to disconnect, Water and gas will not leak easily.
【００２０】本発明の請求項２の管路の伸縮可撓構造で
は、連結管１２と内管３の連結部を回動可能な可撓構造
にしてあるため、請求項１の前記効果の他に次のような
効果もある。 ．連結管１２と内管３との回動に伴って外管１と内管
３の伸縮もより一層円滑になり、外管１と内管３により
一層亀裂が入りにくくなり、両管１、３が一層破断しに
くくなり、外管１と内管３の連結も一層外れにくくな
る。 ．内管３の一端部を連結管１２の内側に差し込み、駒
２６、パッキン２７、押し具２８の全てを連結管１２内
に収納する構造としてあるため、地中に埋設しても駒２
６、パッキン２７、押し具２８等が泥を被たり、連結管
１２と内管３の回動部分に塵芥が詰まったりしないの
で、両管３、１２の回動部分が故障しにくくなり、長期
間に渡って円滑に回動し、可撓性が確保される。In the flexible structure for expanding and contracting the conduit according to the second aspect of the present invention, since the connecting portion between the connecting pipe 12 and the inner pipe 3 is a rotatable structure, the other effects of the first aspect can be obtained. It also has the following effects. . With the rotation of the connecting pipe 12 and the inner pipe 3, the expansion and contraction of the outer pipe 1 and the inner pipe 3 becomes smoother, and the outer pipe 1 and the inner pipe 3 are less likely to be cracked. Is more difficult to break, and the connection between the outer tube 1 and the inner tube 3 is more difficult to disconnect. . Since one end of the inner pipe 3 is inserted into the inside of the connecting pipe 12 and all of the piece 26, the packing 27, and the pushing tool 28 are housed in the connecting pipe 12, the piece 2 is buried even in the ground.
6, the packing 27, the pusher 28, etc. are not covered with mud, and the rotating parts of the connecting pipe 12 and the inner pipe 3 are not clogged with dust, so that the rotating parts of both pipes 3 and 12 are less likely to malfunction, and It smoothly rotates over a period of time and flexibility is secured.
【図１】（ａ）は本発明の管路の伸縮構造の一例を示す
縦断面図、（ｂ）は（ａ）のＣ−Ｃ断面図。FIG. 1A is a vertical cross-sectional view showing an example of a stretchable structure of a pipeline according to the present invention, and FIG. 1B is a cross-sectional view taken along line CC of FIG.
【図２】（ａ）、（ｂ）、（ｃ）は本発明の管路の伸縮
構造の外管の異なる例の説明図。2 (a), (b) and (c) are explanatory views of different examples of the outer tube having the expandable structure of the conduit of the present invention.
【図３】本発明の管路の伸縮構造に使用されるカバーの
一例を示す斜視図。FIG. 3 is a perspective view showing an example of a cover used in the expandable structure of the conduit of the present invention.
【図４】本発明の管路の伸縮可撓構造の一例を示す説明
図。FIG. 4 is an explanatory view showing an example of a flexible structure for expanding and contracting a conduit according to the present invention.
【図５】本発明の管路の伸縮可撓構造における内管の鍔
の開口部とその開口部にセットされる駒の説明図。FIG. 5 is an explanatory view of an opening portion of a flange of an inner pipe and a piece set in the opening portion in a flexible structure for expanding and contracting a pipeline according to the present invention.
【図６】本発明の管路の可撓構造における押し具の一例
を示す斜視図。FIG. 6 is a perspective view showing an example of a pressing tool in the flexible structure of the conduit according to the present invention.
１は外管 ２は外管の一端部 ３は内管 ４は内管の一端部 ５はカバー ６は内管ストッパー ７は外管ストッパー ８はカバー係止部 ９は外管係止部 １０はカバーストッパー １１は内管の他端部 １２は連結管 1 is an outer pipe 2 is one end of an outer pipe 3 is an inner pipe 4 is one end of an inner pipe 5 is a cover 6 is an inner pipe stopper 7 is an outer pipe stopper 8 is a cover locking part 9 is an outer pipe locking part 10 The cover stopper 11 is the other end of the inner pipe 12 is the connecting pipe
Claims (2)
側に、内管（３）の軸線方向の一端部（４）をその軸線
方向にスライド可能に差込み、両管（１、３）の差込み
部の外周にカバー（５）を被せてなり、内管（３）の外
周のうち外管（１）の一端部（２）よりも外側に内管ス
トッパー（６）が形成され、外管（１）の一端部（２）
の外周に外管ストッパー（７）とカバー係止部（８）が
形成され、カバー（５）のうち外管側の端部には外管
（１）の前記カバー係止部（８）に係止可能な外管係止
部（９）が形成され、カバー（５）の他端側であって前
記内管ストッパー（６）よりも外側には同内管ストッパ
ー（６）が係止するカバーストッパー（１０）が形成さ
れてなることを特徴とする管路の伸縮構造。1. An axial end portion (4) of an inner pipe (3) is slidably inserted into an axial end portion (2) of an outer pipe (1) so that both pipes ( 1, 3) is covered with a cover (5), and an inner pipe stopper (6) is provided on the outer periphery of the inner pipe (3) outside the one end (2) of the outer pipe (1). Formed and one end (2) of the outer tube (1)
An outer pipe stopper (7) and a cover locking portion (8) are formed on the outer periphery of the outer pipe, and the outer pipe side end of the cover (5) is attached to the cover locking portion (8) of the outer pipe (1). An outer pipe locking portion (9) that can be locked is formed, and the inner pipe stopper (6) is locked on the other end side of the cover (5) and outside the inner pipe stopper (6). Stretchable structure of a pipeline, characterized in that a cover stopper (10) is formed.
他の連結管（１２）に回動可能に連結されてなることを
特徴とする請求項１記載の管路の伸縮可撓構造。2. The pipe line according to claim 1, wherein the other end portion (11) in the axial direction of the inner pipe (3) is rotatably connected to another connecting pipe (12). Stretchable and flexible structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35330795A JP3308442B2 (en) | 1995-12-27 | 1995-12-27 | Telescopic flexible structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35330795A JP3308442B2 (en) | 1995-12-27 | 1995-12-27 | Telescopic flexible structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09178043A true JPH09178043A (en) | 1997-07-11 |
| JP3308442B2 JP3308442B2 (en) | 2002-07-29 |
Family
ID=18429963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35330795A Expired - Fee Related JP3308442B2 (en) | 1995-12-27 | 1995-12-27 | Telescopic flexible structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3308442B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003096833A (en) * | 2001-09-19 | 2003-04-03 | Kurimoto Ltd | Leakage prevention device for expansion pipe |
| JP2010172526A (en) * | 2009-01-30 | 2010-08-12 | Nohmi Bosai Ltd | Fire extinguishing equipment, and valve to be used in the same |
| CN112240045A (en) * | 2020-08-26 | 2021-01-19 | 蓝城乐居建设管理集团有限公司 | A subside flexible structure for going out wall drainage system |
| CN113431966A (en) * | 2021-08-02 | 2021-09-24 | 王杨 | Municipal administration water supply and drainage pipeline connection structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2407944C1 (en) * | 2009-04-16 | 2010-12-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Device for connection of pipe sections |
-
1995
- 1995-12-27 JP JP35330795A patent/JP3308442B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003096833A (en) * | 2001-09-19 | 2003-04-03 | Kurimoto Ltd | Leakage prevention device for expansion pipe |
| JP2010172526A (en) * | 2009-01-30 | 2010-08-12 | Nohmi Bosai Ltd | Fire extinguishing equipment, and valve to be used in the same |
| CN112240045A (en) * | 2020-08-26 | 2021-01-19 | 蓝城乐居建设管理集团有限公司 | A subside flexible structure for going out wall drainage system |
| CN113431966A (en) * | 2021-08-02 | 2021-09-24 | 王杨 | Municipal administration water supply and drainage pipeline connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3308442B2 (en) | 2002-07-29 |
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