CN106641556A - Spirally wound profile and spirally wound pipe - Google Patents
Spirally wound profile and spirally wound pipe Download PDFInfo
- Publication number
- CN106641556A CN106641556A CN201710046217.XA CN201710046217A CN106641556A CN 106641556 A CN106641556 A CN 106641556A CN 201710046217 A CN201710046217 A CN 201710046217A CN 106641556 A CN106641556 A CN 106641556A
- Authority
- CN
- China
- Prior art keywords
- section bar
- spiral
- access division
- engagement portion
- clamping engagement
- 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
- 238000004804 winding Methods 0.000 claims abstract description 40
- 230000000994 depressogenic effect Effects 0.000 claims description 12
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000011065 in-situ storage Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
-
- 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
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the technical field of repair of conveying pipelines, in particular to a spirally wound profile and a spirally wound pipe. The profile comprises a spiral profile body, clamping parts and clamping matching parts; the clamping parts are arranged on the first side surface of the profile body in the radial direction; the clamping matching parts are arranged on the second side surface of the profile body in the radial direction; the clamping parts and the clamping matching parts extend in the spiral direction of the profile body; and the profile body comprises a plurality of integrally molded spiral profile coils. When a pipeline is repaired with the non-excavation technology, under the acting force of winding equipment, the adjacent spiral profile coils are fixed through the clamping parts and the clamping matching parts, the pipe is formed in situ through winding inside the pipeline, and then the whole to-be-repaired pipeline is repaired. Besides, in the non-excavation pipeline repair process, the profile is simple and convenient to construct, complex construction equipment is not required, and the application prospect is broad.
Description
Technical field
The application is related to conveyance conduit recovery technique field, more particularly to a kind of spiral winding section bar, spiral winding pipe.
Background technology
Underground piping is closely bound up with daily life, is to support social development, ensure the important base of people's lives
One of Infrastructure, is " life line " that city is depended on for existence and development, is to maintain city on the ground and the underground space, ensure that city is whole
The important infrastructure of running body.
The underground piping inevitably phenomenon such as rupture, seepage, corrosion in use, and these situations are tight
Important place have impact on the normal function of pipeline.Traditional trenchless rehabilitation technology, by excavating is changed in the face of pipeline or is repaired,
Its impact of construction to traffic, environment and social economy is larger, especially in bustling urban area；Simultaneously, it is also possible to cause
Pipeline ground or the damage of underground structure.Therefore, no-dig technique pipe rehabilitation technology be due to excavating ground, and
Traffic is had substantially no effect on when carrying out in-situ immobilization to pipeline, it is wide the features such as the impact to traffic, environment and social economy is less
Pipeline rehabilitation field is applied to generally.
At present, spiral winding non-excavation repairing technique adopts spiral winding section bar, under the mechanism of wrapping machine winding
Pipe is wound in, in original pipeline of underground piping pipe is molded into.General spiral winding pipe is related to the winding of two kinds of section bars
Engagement, by the ring-wound and Type B material of A section bars the connection of A section bar interlayers, this engagement are realized to the engagement of A section bars
Mode implements more difficult, while joggled strength is relatively poor.
The content of the invention
The purpose of the application is implemented to solve the engagement system between existing non-excavation rehabilitation pipe technology medium section
Get up more difficult problem.
For this purpose, this application provides a kind of spiral winding section bar, including spiral helicine section bar body, Access Division, clamping is matched somebody with somebody
Conjunction portion,
The Access Division is radially arranged at the first side of the section bar body, and the clamping engagement portion is radially
Direction is arranged at the second side of the section bar body；
The Access Division, clamping engagement portion extend along the hand of spiral of the section bar body；
The section bar body includes some integrally formed spiral section bar circles, passes through between the adjacent spiral section bar circle
Access Division and clamping engagement portion are fixed.
Further, the Access Division is the lobe for being continuously arranged at the section bar first body side face；The clamping
Auxiliary section is the depressed part for being continuously arranged at the section bar second body side face；The depressed part is meshed with the lobe.
Further, the Access Division is provided with buckle, and the clamping engagement portion is provided with hole clipping, the buckle with it is described
Hole clipping is engaged.
Further, the thickness of the thickness that the Access Division and clamping engagement portion joint are formed and the section bar body
Degree is equal, it is ensured that the internal diameter of the pipeline that the spiral winding section bar is finally wound in is invariable.
Further, the Access Division is T-shaped rib, and the clamping engagement portion is T-slot, and the T-shaped rib and T-slot are mutual
Engagement is realized to the fixation between adjoining spiral section bar circle.
Further, the Access Division and the clamping engagement portion are additionally provided with tack coat, strengthen to adjoining spiral section bar
Fixation between circle.
Additionally, present invention also provides a kind of spiral winding pipe, the spiral winding pipe is by above-described spiral winding
Section bar is entwined.
The technical scheme that the application is provided includes following beneficial effect：The spiral winding section bar that the application is provided, by edge
Radial direction is arranged at the Access Division in the section bar first body side face, is radially arranged at the section bar second body side
The clamping engagement portion in face, during using trenchless technology pipe-repairing, under the active force of Wiring apparatus, adjacent spiral section bar
Fixed by Access Division and clamping engagement portion between circle, in pipeline internal in-situ pipe is wound in, and then realized to whole to be repaired
The reparation of pipeline.Additionally, this work progress, construction equipment that is simple and convenient, not needing complexity；Meanwhile, can be relatively easily
Realize that duct thickness is increased, so as to meet the demand of high strength pipe.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the application, letter will be made to the accompanying drawing to be used needed for embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Can be with according to these other accompanying drawings of accompanying drawings acquisition.
A kind of front view of spiral winding section bar that Fig. 1 is provided for the embodiment of the present application；
A kind of cross-sectional view of spiral winding section bar that Fig. 2 is provided for the embodiment of the present application；
Access Division and a kind of engaging structure schematic diagram in clamping engagement portion that Fig. 3 is provided for the application；
Access Division and another kind of engaging structure schematic diagram in clamping engagement portion that Fig. 4 is provided for the application；
Access Division and another engaging structure schematic diagram in clamping engagement portion that Fig. 5 is provided for the application；
A kind of structural representation of spiral winding pipe that Fig. 6 is provided for the application.
Description of reference numerals：1st, section bar body；2nd, Access Division；3rd, clamping engagement portion；4th, spiral section bar circle；10th, the first side
Face；11st, second side；20th, buckle；21st, dovetail rib；22nd, hemisphere rib；30th, hole clipping；31st, the first groove；32nd, the second groove.
Specific embodiment
Accompanying drawing herein is merged in description and constitutes the part of this specification, shows the enforcement for meeting the application
Example, and be used to explain the principle of the application together with description.
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Embodiment 1：
It is shown in Figure 1, a kind of front view of the spiral winding section bar provided for the application, including spiral helicine section bar sheet
Body 1, shown in Figure 2, the cross-sectional view of the spiral winding section bar provided for the application, the spiral winding section bar bag
Include Access Division 2, clamping engagement portion 3,
The Access Division 2 is radially arranged at the first side 10 of the section bar body 1, the clamping engagement portion 3
Radially it is arranged at the second side 11 of the section bar body 1；
The Access Division 2, clamping engagement portion 3 extend along the hand of spiral of the section bar body 1；
The section bar body 1 includes some integrally formed spiral section bar circles 4, between the adjacent spiral section bar circle 4
Fixed by Access Division 2 and clamping engagement portion 3.
Further, the Access Division 2 is the lobe for being continuously arranged at the first side 10 of the section bar body 1；It is described
Clamping engagement portion 3 is the depressed part for being continuously arranged at the second side 11 of the section bar body 1；The opening of the depressed part and institute
State second side 11 concordant, the depressed part is meshed with the lobe.
When using trenchless technology pipe-repairing, under the active force of Wiring apparatus, adjacent spiral section bar circle 4 it
Between fixed by Access Division 2 and clamping engagement portion 3, be wound in pipe in pipeline internal in-situ, and then realize to entirely pipe to be repaired
The reparation in road.This work progress, construction equipment that is simple and convenient, not needing complexity.
Embodiment 2：
It is shown in Figure 3 on the basis of embodiment 1, the Access Division 2 provided for the application and the one of clamping engagement portion 3
Plant engaging structure schematic diagram.The Access Division 2 is provided with buckle 20, and the clamping engagement portion 3 is provided with hole clipping 30, the buckle
20 are engaged with the hole clipping 30, and then realize between the adjacent spiral section bar circle 4 by Access Division 2 and clamping engagement portion
3 are tightly fastened.
Embodiment 3：
On the basis of embodiment 1, difference from Example 1 is that the Access Division 2 is arranged at the type for interruption
The lobe of the first side 10 of material body 1；The clamping engagement portion 3 is arranged at the second side 11 of the section bar body 1 for interruption
Depressed part；The opening of the depressed part is concordant with the second side 11, and the depressed part is meshed with the lobe.
Further, the lobe is arranged at the first side 10 of the section bar body 1 for equidistant or unequal-interval
T-shaped rib, the depressed part is equidistant or unequal-interval is arranged at the T-slot of the second side 11 of the section bar body 1.
Embodiment 4：
On the basis of embodiment 1, difference from Example 1 is that the Access Division 2 is arranged at the type for interruption
The depressed part of the first side 10 of material body 1；The clamping engagement portion 3 is arranged at the second side 11 of the section bar body 1 for interruption
Lobe；
It is shown in Figure 4, the Access Division 2 provided for the application and another kind of engaging structure schematic diagram in clamping engagement portion 3.
The generally T-shaped groove in the Access Division 2, the generally T-shaped boss in the clamping engagement portion 3；The T-shaped groove by three bores not
With groove combine, correspondingly, the T-shaped boss is combined by three various sizes of boss, the T-shaped boss and institute
T-shaped groove intermeshing is stated, makes the adjacent spiral section bar circle 4 be wound in pipe in pipeline internal in-situ, and then completed to whole
The reparation of individual pipeline to be repaired.
Embodiment 5：
Shown in Figure 5 on the basis of embodiment 1, the Access Division 2 provided for the application and clamping engagement portion 3 are again
A kind of engaging structure schematic diagram.The Access Division 2 include dovetail rib 21, hemisphere rib 22, the clamping engagement portion 3 include with it is described
The first mutually chimeric groove 31 of dovetail rib 21 and second groove 32 mutually chimeric with the hemisphere rib 23.
Further, the Access Division 2 and the joint of clamping engagement portion 3 are formed thickness and the section bar body 1
Thickness it is equal, it is ensured that the internal diameter of the pipeline that the spiral winding section bar is finally wound in is invariable.
When the spiral winding section bar is wound in pipeline, first groove 31 is viscous with the mutually embedding merga pass of dovetail rib 21
Knot agent is adhesively fixed, and second groove 32 and the mutually embedding merga pass lubrication and seal agent of the hemisphere rib 22 are sealed.When needs add
During big duct thickness, the spiral winding section bar that section bar itself can be selected thicker is wound in pipeline, the adjacent spiral section bar
Be intermeshed by Access Division 2 and clamping engagement portion 3 between circle 4, it is ensured that spiral winding section bar be wound in the intensity after pipeline and
Rigidity.
When pipe diameter is larger, reinforcement band can be increased in the spiral winding section bar, it is ensured that wound spiral type
Material is wound in the intensity after pipeline and rigidity.
Embodiment 6：
It is shown in Figure 6 on the basis of embodiment 1, a kind of structural representation of the spiral winding pipe provided for the application
Figure,
The spiral winding pipe is entwined by described spiral winding section bar, between the adjacent spiral section bar circle 4
It is tightly fastened by Access Division 2 and clamping engagement portion 3.Spiral winding section bar is set to be wound in pipe in pipeline internal in-situ, so it is complete
The reparation of whole pipeline to be repaired in pairs；This work progress, construction equipment that is simple and convenient, not needing complexity；Meanwhile, can be with
Relatively easily realize that duct thickness is increased, so as to meet the demand of high strength pipe.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation makes a distinction with another entity or operation, and not necessarily requires or imply these entities or exist between operating any
This actual relation or order.And, term " including ", "comprising" or its any other variant are intended to non-exclusive
Property include so that not only include those key elements including the article or equipment of a series of key elements, but also including not having
Other key elements being expressly recited, or also include the key element intrinsic for this process, method, article or equipment.Do not having
In the case of having more restrictions, the key element limited by sentence "including a ...", it is not excluded that in the mistake including the key element
Also there is other identical element in journey, method, article or equipment.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case of without departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
It should be appreciated that the application is not limited to the precision architecture for being described above and being shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.Scope of the present application is only limited by appended claim.
Claims (7)
1. a kind of spiral winding section bar, it is characterised in that including spiral helicine section bar body (1), Access Division (2), be engaged by clamping
Portion (3),
The Access Division (2) is radially arranged at the first side (10) of the section bar body (1), the clamping engagement portion
(3) radially it is arranged at the second side (11) of the section bar body (1)；
The Access Division (2), clamping engagement portion (3) extend along the spiral of the section bar body (1) to direction；
The section bar body (1) includes some integrally formed spiral section bar circles (4), the adjacent spiral section bar circle (4) it
Between it is fixed by Access Division (2) and clamping engagement portion (3).
2. spiral winding section bar according to claim 1, it is characterised in that the Access Division (2) is to be continuously arranged at institute
State the lobe of section bar body (1) first side (10)；The clamping engagement portion (3) is to be continuously arranged at the section bar body
(1) depressed part of second side (11)；The depressed part is meshed with the lobe.
3. spiral winding section bar according to claim 2, it is characterised in that the Access Division (2) is provided with buckle (20),
The clamping engagement portion (3) is provided with hole clipping (30), and the buckle (20) is engaged with the hole clipping (30).
4. spiral winding section bar according to claim 3, it is characterised in that the Access Division (2) and the clamping engagement
The thickness that portion (3) joint is formed is equal with the thickness of the section bar body (1).
5. spiral winding section bar according to claim 3, it is characterised in that the Access Division (2) is T-shaped rib, the card
It is T-slot to connect auxiliary section (3).
6. spiral winding section bar according to claim 3, it is characterised in that the Access Division (2) and the clamping engagement
Portion is additionally provided with tack coat between (3).
7. a kind of spiral winding pipe, it is characterised in that spiral of the spiral winding pipe by described in any one of claim 1-6 is twined
It is entwined around section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046217.XA CN106641556A (en) | 2017-01-22 | 2017-01-22 | Spirally wound profile and spirally wound pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046217.XA CN106641556A (en) | 2017-01-22 | 2017-01-22 | Spirally wound profile and spirally wound pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106641556A true CN106641556A (en) | 2017-05-10 |
Family
ID=58841885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710046217.XA Pending CN106641556A (en) | 2017-01-22 | 2017-01-22 | Spirally wound profile and spirally wound pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641556A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643445A (en) * | 2018-08-09 | 2018-10-12 | 浙江新远见材料科技股份有限公司 | A kind of high-strength wood-plastic clad plate of noise reduction |
| CN111336077A (en) * | 2020-03-23 | 2020-06-26 | 上海惠生海洋工程有限公司 | Cold water pipe for thermoelectric power generation and mounting mechanism |
| CN113775831A (en) * | 2021-09-18 | 2021-12-10 | 五行科技股份有限公司 | A spiral wound composite pipe |
| CN116025776A (en) * | 2023-01-28 | 2023-04-28 | 上海逸通科技股份有限公司 | An axial clamping anti-cracking hollow wall plastic winding pipe |
| CN116039060A (en) * | 2023-01-28 | 2023-05-02 | 上海逸通科技股份有限公司 | An axial clamping anti-cracking plastic winding pipe winding machine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212648A1 (en) * | 1992-04-15 | 1993-10-21 | Technoplast Kunststoffverarbei | Pipe with banded, wound pipe wall - has each winding with fork and fixture element including contoured sealing face |
| US5660912A (en) * | 1993-07-14 | 1997-08-26 | Rib Loc Australia Pty Ltd | Plastic profiled strip forming helically wound tube using hinged flap for jointing |
| CN2371383Y (en) * | 1998-12-05 | 2000-03-29 | 毛义庆 | Thin wall cylinder |
| CN1295209A (en) * | 2000-11-08 | 2001-05-16 | 陈仪清 | Shaped spiral wound pipe |
| CN2575061Y (en) * | 2002-08-23 | 2003-09-24 | 陈仪清 | Driver for adjustable steering |
| CN2589776Y (en) * | 2002-12-30 | 2003-12-03 | 刘崇山 | Section bar for spirally-wound pipes |
| CN101122354A (en) * | 2007-09-02 | 2008-02-13 | 薛清纪 | Enwound tube section bar |
| CN203641709U (en) * | 2013-12-23 | 2014-06-11 | 福建晟达新型管材有限公司 | Profile used for winding composite plastic pipe |
| CN205261051U (en) * | 2015-12-23 | 2016-05-25 | 天津丰联管业有限公司 | PE pipe |
| CN206398261U (en) * | 2017-01-22 | 2017-08-11 | 湖南大麓科技有限公司 | A kind of pipeline non-excavation rehabilitation spiral winding section bar |
-
2017
- 2017-01-22 CN CN201710046217.XA patent/CN106641556A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212648A1 (en) * | 1992-04-15 | 1993-10-21 | Technoplast Kunststoffverarbei | Pipe with banded, wound pipe wall - has each winding with fork and fixture element including contoured sealing face |
| US5660912A (en) * | 1993-07-14 | 1997-08-26 | Rib Loc Australia Pty Ltd | Plastic profiled strip forming helically wound tube using hinged flap for jointing |
| CN2371383Y (en) * | 1998-12-05 | 2000-03-29 | 毛义庆 | Thin wall cylinder |
| CN1295209A (en) * | 2000-11-08 | 2001-05-16 | 陈仪清 | Shaped spiral wound pipe |
| CN2575061Y (en) * | 2002-08-23 | 2003-09-24 | 陈仪清 | Driver for adjustable steering |
| CN2589776Y (en) * | 2002-12-30 | 2003-12-03 | 刘崇山 | Section bar for spirally-wound pipes |
| CN101122354A (en) * | 2007-09-02 | 2008-02-13 | 薛清纪 | Enwound tube section bar |
| CN203641709U (en) * | 2013-12-23 | 2014-06-11 | 福建晟达新型管材有限公司 | Profile used for winding composite plastic pipe |
| CN205261051U (en) * | 2015-12-23 | 2016-05-25 | 天津丰联管业有限公司 | PE pipe |
| CN206398261U (en) * | 2017-01-22 | 2017-08-11 | 湖南大麓科技有限公司 | A kind of pipeline non-excavation rehabilitation spiral winding section bar |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643445A (en) * | 2018-08-09 | 2018-10-12 | 浙江新远见材料科技股份有限公司 | A kind of high-strength wood-plastic clad plate of noise reduction |
| CN111336077A (en) * | 2020-03-23 | 2020-06-26 | 上海惠生海洋工程有限公司 | Cold water pipe for thermoelectric power generation and mounting mechanism |
| CN113775831A (en) * | 2021-09-18 | 2021-12-10 | 五行科技股份有限公司 | A spiral wound composite pipe |
| CN116025776A (en) * | 2023-01-28 | 2023-04-28 | 上海逸通科技股份有限公司 | An axial clamping anti-cracking hollow wall plastic winding pipe |
| CN116039060A (en) * | 2023-01-28 | 2023-05-02 | 上海逸通科技股份有限公司 | An axial clamping anti-cracking plastic winding pipe winding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106641556A (en) | Spirally wound profile and spirally wound pipe | |
| CN206398261U (en) | A kind of pipeline non-excavation rehabilitation spiral winding section bar | |
| AU2015216937B2 (en) | Flexible pipe for transporting a fluid equipped with a lazy-S-shaped insert and associated method for manufacture | |
| ATE231597T1 (en) | INSERT HOSE FOR THE RECONSTRUCTION OF PIPES AND PIPELINES AND METHOD FOR THE PRODUCTION THEREOF | |
| CN109707949A (en) | A kind of pipeline non-excavation rehabilitation technique | |
| CN104763441B (en) | Longitudinal joint connector for duct piece of shield tunnel | |
| CN202219503U (en) | petroleum pipeline cutting belt | |
| CN210687315U (en) | Combined type pipeline lining hose | |
| US20170045176A1 (en) | Pipe Liner and Method of Using the Same | |
| CN204922299U (en) | M type helical bellows through socket and sealed nested contact of bellmouth | |
| CN107859805A (en) | A kind of changeable virtual valve | |
| CN203395495U (en) | Enhancement structure for weak part of pipeline | |
| CN103278379B (en) | The special short tube of pressure testing and the using method in long-distance pipe pipe section pressure test thereof | |
| CN107701852B (en) | Axial traction type connecting seabed pipeline repairing operation device | |
| CN213871592U (en) | Non-excavation pipeline connection structure | |
| CN201281184Y (en) | Top pipe deviation rectifying subjoint | |
| US20140007968A1 (en) | Apparatus and method for internal repair of round and non-round conduits | |
| CN104358963A (en) | Drainage device for emergency disposal in case of leakage of exposed oil and gas pipelines, and leakage disposal method thereof | |
| CN203628097U (en) | Worm transmission type hose hoop | |
| CN207213487U (en) | A kind of no-dig technique expands closing-type pipe-repairing | |
| CN204254143U (en) | Oil and gas pipeline leakage emergency treatment jig | |
| CN222597017U (en) | Corrosion-resistant cold-drawing seamless steel pipe | |
| CN204284776U (en) | Exposed oil and gas pipeline leakage emergency treatment drainage system | |
| CN217951598U (en) | Communicating pipe fitting in natural gas pipeline crossing and moving engineering | |
| CN218441265U (en) | Trenchless pipeline repairing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |