CN110469723A - A kind of new type mining helical bellows - Google Patents

A kind of new type mining helical bellows Download PDF

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Publication number
CN110469723A
CN110469723A CN201910753463.8A CN201910753463A CN110469723A CN 110469723 A CN110469723 A CN 110469723A CN 201910753463 A CN201910753463 A CN 201910753463A CN 110469723 A CN110469723 A CN 110469723A
Authority
CN
China
Prior art keywords
bellows
connector
main body
new type
helical
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
Application number
CN201910753463.8A
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Chinese (zh)
Inventor
刘志强
宋晓飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei junyida Technology Co., Ltd
Original Assignee
HEBEI HUAZHANG INDUSTRIL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HEBEI HUAZHANG INDUSTRIL CO Ltd filed Critical HEBEI HUAZHANG INDUSTRIL CO Ltd
Priority to CN201910753463.8A priority Critical patent/CN110469723A/en
Publication of CN110469723A publication Critical patent/CN110469723A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/08Joints with sleeve or socket with additional locking means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/02Rigid pipes of metal
    • F16L9/04Reinforced pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/02Rigid pipes of metal
    • F16L9/06Corrugated pipes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

The invention discloses a kind of new type mining helical bellows, including bellows main body, the bellows body outer wall offers several bellows main body reinforcing strips, and bellows main body one end is connected with the first connector of bellows, and bellows main body other end is connected with the second connector of bellows, and first connector of bellows and the nearly bellows bulk end of the second connector of bellows offer the bellows main body fixing groove of annular.The new type mining helical bellows are provided with ruggedized construction, effectively pipeline and connection ring can be fixed together, improve pipeline and connection ring crushing resistance, the case where can cracking to avoid pipeline and connection ring, improve the conveying effect of pipeline, and the device is provided with reinforcement of weld structure, improves the connection effect of pipeline and connection ring, such pipeline and connection ring and is not easy the case where cracking when being pressed or pounding by object.

Description

A kind of new type mining helical bellows
Technical field
The present invention relates to mining delivery pipe equipment technical field, specially a kind of new type mining helical bellows.
Background technique
Pipeline is that the underground of the mine constructions such as coal mine supplies water, draining, presses wind, slip casting, the transmission channel for infusing nitrogen, is coal mine The important component of engineering system, these usual pipelines are all to lay and be fixed in wall side by side, in exploitation of mineral resources It will be related to the installation of pipeline daily in the process, remove operation;Bellows refers to foldable wrinkle piece along folding retractable direction The tubular elastomeric sensing element connected into, bellows are widely used in instrument and meter, are mainly used for as pressure-measuring device The measuring cell of table converts pressure into displacement or power, and ripple tube wall is relatively thin, and sensitivity is higher, and measurement range is tens of pas To tens of megapascal.Its open end is fixed, and sealed end is in free state, and increases bullet using the helical spring of auxiliary or reed Property.It is extended under the action of internal pressure along tube length direction when work, makes movable end generation and pressure at certain relationship Displacement, movable end drive pointer that can directly indicate the size of pressure, and bellows usually combines with displacement sensor composition Output is the pressure sensor of electricity, is also sometimes used as isolation element, since the stretching, extension of bellows requires biggish volume to change, Therefore its response speed is lower than Bourdon tube, and bellows is suitable for measurement low pressure, and bellows is one of pipes for mining, pipes for mining, It is the pipeline of coal mine.Including coal mine supplying drainage, coal mine gas drainage pipe, underground coal mine shotcrete pipe, coalmine ventilation pipe, coal seam Feed channel, coal mine connection hose etc..There are many kinds of pipes for mining, such as mining pvc pipe, mining PE pipe, mining polymer tube, it is mining not Become rusty steel pipe, mining plastics coated tube etc..
Existing pipe used in mine is often pounded by coal seam and rock, is touched, is pressed due to its special use environment, this Requirement to pipeline valve gasket seal is high, and the interface of such pipeline and connection ring is pounded by coal seam and rock, touches, pressed When, the case where pipeline and connection ring are easy to happen cracking or fracture, it be easy to cause leakage, and gasket seal tear resistance Bad, then cut is easy to extend, so that gasket seal is exposed, influences the service life of pipeline.
Summary of the invention
The purpose of the present invention is to provide a kind of new type mining helical bellows, to solve the pipeline proposed in background technique When being pounded by coal seam and rock with the interface of connection ring, touch, press, pipeline is easy to happen the feelings of cracking or fracture with connection ring Condition, the problem of be easy to causeing leakage.
To achieve the above object, the invention provides the following technical scheme: a kind of new type mining helical bellows, including ripple Pipe main body, the bellows body outer wall offers several bellows main body reinforcing strips, and bellows main body one end is connected with The first connector of bellows, and bellows main body other end is connected with the second connector of bellows, the bellows first Connector and the nearly bellows bulk end of the second connector of bellows offer the bellows main body fixing groove of annular, and bellows First connector and bellows the second connector outer wall offer several bellows main body welding grooves, the bellows first Connector outer wall is equipped with several the first connector fixed blocks, and bellows the second connector outer wall is equipped with several the second companies Fixed block installation through-hole is offered on fitting fixed block, the first connector fixed block and the second connector fixed block.
Preferably, first connector of bellows and the second connector of bellows are annular, and bellows first connects Part and the second connector of bellows are symmetrical about the center line of bellows main body, and the first connector of bellows and ripple The second connector of pipe uses 304K2 stainless steel material.
Preferably, the section of the first connector fixed block and the second connector fixed block is " u "-shaped.
Preferably, the bellows main body uses stainless steel material, and bellows main material model 304K2.
Preferably, there are three the bellows main body reinforcing strip is set altogether, and bellows main body reinforcing strip is uniform in the shape of a spiral It is distributed in bellows main body.
Preferably, the interior loop-shaped kissing of the outer loop-shaped of second connector of bellows and the first connector of bellows It closes.
Preferably, the bellows main body fixing groove inner wall thickness is equal with the inner wall thickness of bellows main body.
Preferably, there are three the bellows main body welding groove is set altogether, and bellows main body welding groove is evenly distributed on wave On the second connector of the first connector of line pipe and bellows.
Compared with prior art, the beneficial effects of the present invention are: the new type mining helical bellows are provided with ruggedized construction, Effectively pipeline and connection ring can be fixed together, improve pipeline and connection ring crushing resistance, it can be to avoid pipeline and connection The case where ring cracks improves the conveying effect of pipeline, and the device is provided with reinforcement of weld structure, improves pipeline and company It connects the connection effect of ring, such pipeline and connection ring and is not easy the case where cracking when being pressed or pounding by object.It should Together with the first connector of bellows of device can be mutually clamped with the second connector of bellows of other devices, while wave The first connector fixed block on the first connector of line pipe can be to the second connector fixed block on the second connector of bellows Position, the first connector fixed block and the second connector fixed block can be fixed together in this way, will be different with this The device links together, and the bellows main body fixing groove on the second connector of the first connector of bellows and bellows can To accommodate by the both ends of bellows main body, both ends of bellows main body are wrapped up with this, increase bellows main body With the connection effect of the second connector of the first connector of bellows and bellows, while the first connector of bellows and bellows Bellows main body welding groove on two connectors can be such that bellows main body exposes, in this way can be individually to bellows main body The work that bellows main body in welding groove is welded allows bellows main body welding groove inner wall two sides and bellows main body Outer wall links together, and increases the effect of fixed bellows main body.
Detailed description of the invention
Fig. 1 is a kind of new type mining helical bellows structural schematic diagram of the present invention;
Fig. 2 is a kind of bellows the second connector side view of new type mining helical bellows of the present invention;
Fig. 3 is cross-sectional view at A-A in a kind of new type mining helical bellows Fig. 1 of the present invention;
Fig. 4 is cross-sectional view at B-B in a kind of new type mining helical bellows Fig. 1 of the present invention;
Fig. 5 is enlarged structure schematic diagram at C in a kind of new type mining helical bellows Fig. 3 of the present invention;
Fig. 6 is a kind of new type mining helical bellows 304K2 stainless steel compositional data figure of the present invention;
Fig. 7 is a kind of new type mining helical bellows 304K2 stainless steel data of mechanical figure of the present invention;
Fig. 8 is a kind of stainless Impact Toughness of Steel datagram of new type mining helical bellows 304K2 of the present invention;
Fig. 9 is a kind of new type mining helical bellows 304K2 stainless steel product granularity data figure of the present invention;
Figure 10 is a kind of new type mining helical bellows 304K2 stainless steel spot corrosion weightlessness inspection data figure of the present invention;
Figure 11 is a kind of brilliant rotten weightless inspection data figure of new type mining helical bellows 304K2 stainless steel of the present invention;
Figure 12 is a kind of new type mining helical bellows 304K2 stainless steel salt air corrosion weightlessness inspection data figure of the present invention.
In figure: 1, the first connector of bellows, the 2, first connector fixed block, 3, bellows main body, 4, bellows main body Reinforcing strip, the 5, second connector fixed block, 6, the second connector of bellows, 7, fixed block installation through-hole, 8, bellows main body it is solid Determine slot, 9, bellows main body welding groove.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-12 is please referred to, the present invention provides a kind of technical solution: a kind of new type mining helical bellows, including bellows Main body 3,3 outer wall of bellows main body offers several bellows main body reinforcing strips 4, and 3 one end of bellows main body is connected with wave The first connector of line pipe 1, and 3 other end of bellows main body is connected with the second connector of bellows 6, and bellows first connects Part 1 and the second connector of bellows 6 are annular, and the first connector of bellows 1 and bellows the second connector 6 are about bellows The center line of main body 3 is symmetrical, and the first connector of bellows 1 and the second connector of bellows 6 use 304K2 stainless steel Material, the 6 structure comparatively robust of the first connector of bellows 1 and the second connector of bellows of this structure, it is not easy to corrode The case where, the using effect of the first connector of bellows 1 and the second connector of bellows 6 is improved, bellows main body 3 is using stainless Steel material, and 3 material model 304K2 of bellows main body, the 3 structure comparatively robust of bellows main body of this structure, it is not easy to go out The case where now corroding, the specific detection data of 304K2 stainless steel please refer to Fig. 6-Figure 12, allow the properly big portion of bellows main body 3 Point mining environment, there are three bellows main body reinforcing strip 4 is set altogether, and bellows main body reinforcing strip 4 is uniformly distributed in the shape of a spiral In bellows main body 3, the bellows main body reinforcing strip 4 of this structure plays the role of reinforcing bellows main body 3, improves bellows The intensity of 3 inner wall of main body allows 3 inner wall of bellows main body to bear bigger pressure, the first connector of bellows 1 and bellows Nearly 3 end of bellows main body of second connector 6 offers the bellows main body fixing groove 8 of annular, and the first connector of bellows 1 Offer several bellows main body welding grooves 9 with 6 outer wall of the second connector of bellows, the second connector of bellows 6 it is outer Loop-shaped matches with the interior loop-shaped of the first connector of bellows 1, and the second connector of bellows 6 of this structure can be by other The first connector 1 block, be inserted into the first connector 1 in the second connector of bellows 6, in this way can will not Connected with bellows the second connector 6 of the device and the first connector 1,8 inner wall thickness of bellows main body fixing groove with The inner wall thickness of bellows main body 3 is equal, and the bellows main body fixing groove 8 of this structure plays the role of accommodating bellows main body 3, Both ends of bellows main body 3 are accommodated with this and are fixed up, the effect of fixed bellows main body 3, the weldering of bellows main body are improved There are three access slot 9 is set altogether, and bellows main body welding groove 9 is evenly distributed on the first connector of bellows 1 and bellows second connects On fitting 6, the bellows main body welding groove 9 of this structure can be by 3 outer wall of bellows main body in bellows main body fixing groove 8 It exposes, individually 3 inner wall of bellows main body can be welded in this way, allow bellows main body 3 and bellows main body 9 inner wall two sides of welding groove weld together, and improve the effect of fixed bellows main body 3, and 1 outer wall of the first connector of bellows is equipped with The section of several the first connector fixed blocks 2, the first connector fixed block 2 and the second connector fixed block 5 is " u "-shaped, The the first connector fixed block 2 and the second connector fixed block 5 of this structure can mutually be stuck, and can be somebody's turn to do difference in this way The first connector of bellows 1 and the second connector of bellows 6 of device link together, and improve fixed the first connector of bellows 1 and the second connector of bellows 6 effect, and the first connector fixed block 2 and 5 structure of the second connector fixed block are harder Gu, it is not easy to the case where deformation occurs, 6 outer wall of the second connector of bellows be equipped with several the second connector fixed blocks 5, first Fixed block installation through-hole 7 is offered on connector fixed block 2 and the second connector fixed block 5.
Working principle: when using the new type mining helical bellows, first connector of device bellows 1 is connected first It is connected to suitable place, then fixed screw is arranged on 1 outer ring the first connector fixed block 2 of the first connector of bellows In fixed block installation through-hole 7, the first connector of bellows 1 of device is fixed on external device with this, again will later The first connector of bellows 1 of another device is set on the second connector of bellows 6 of the mounted device, later The first connector on two first connectors of device bellows 1 and the second connector of bellows 6 is fixed by screw again Block 2 and the second connector fixed block 5 are fixed together, and two the device can link together in this way, according to above-mentioned step Suddenly it is installed, bellows main body reinforcing strip 4 can play the role of reinforcing bellows main body 3, make 3 outer wall of bellows main body can To bear bigger pressure, the effect of bellows main body 3 is improved, and the both ends of bellows main body 3 can be plugged in bellows It, in this way can be by the edge of bellows main body fixing groove 8 and bellows main body welding groove 9 and bellows master in main body fixing groove 8 Body 3 welds together, and the connection for improving bellows main body 3 and the first connector of bellows 1 and the second connector of bellows 6 is imitated Fruit makes the first connector of bellows 1 and the second connector of bellows 6 be not easy to separate with bellows main body 3, improves the device Using effect, to complete a series of activities.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this Within the protection scope of invention.

Claims (8)

1. a kind of new type mining helical bellows, including bellows main body (3), it is characterised in that: the bellows main body (3) is outside Wall offers several bellows main body reinforcing strips (4), and bellows main body (3) one end is connected with the first connector of bellows (1), and bellows main body (3) other end is connected with the second connector of bellows (6), first connector of bellows (1) and nearly bellows main body (3) end of the second connector of bellows (6) offers annular bellows main body fixing groove (8), and The first connector of bellows (1) and the second connector of bellows (6) outer wall offer several bellows main body welding grooves (9), the first connector of bellows (1) outer wall is equipped with several the first connector fixed blocks (2), and the bellows second connects Fitting (6) outer wall is equipped with several the second connector fixed blocks (5), the first connector fixed block (2) and the second connector Fixed block installation through-hole (7) are offered on fixed block (5).
2. a kind of new type mining helical bellows according to claim 1, it is characterised in that: the bellows first connects Part (1) and the second connector of bellows (6) are annular, and the first connector of bellows (1) and the second connector of bellows (6) close It is symmetrical in the center line of bellows main body (3), and the first connector of bellows (1) and the second connector of bellows (6) Using 304K2 stainless steel material.
3. a kind of new type mining helical bellows according to claim 1, it is characterised in that: first connector is fixed The section of block (2) and the second connector fixed block (5) is " u "-shaped.
4. a kind of new type mining helical bellows according to claim 1, it is characterised in that: the bellows main body (3) Using stainless steel material, and bellows main body (3) material model 304K2.
5. a kind of new type mining helical bellows according to claim 1, it is characterised in that: the bellows main body is reinforced There are three item (4) is set altogether, and bellows main body reinforcing strip (4) is evenly distributed in the shape of a spiral in bellows main body (3).
6. a kind of new type mining helical bellows according to claim 1, it is characterised in that: the bellows second connects The outer loop-shaped of part (6) matches with the interior loop-shaped of the first connector of bellows (1).
7. a kind of new type mining helical bellows according to claim 1, it is characterised in that: the bellows main body is fixed Slot (8) inner wall thickness is equal with the inner wall thickness of bellows main body (3).
8. a kind of new type mining helical bellows according to claim 1, it is characterised in that: the bellows main body welding There are three slot (9) is set altogether, and bellows main body welding groove (9) is evenly distributed on the first connector of bellows (1) and bellows On two connectors (6).
CN201910753463.8A 2019-08-15 2019-08-15 A kind of new type mining helical bellows Pending CN110469723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910753463.8A CN110469723A (en) 2019-08-15 2019-08-15 A kind of new type mining helical bellows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN110469723A true CN110469723A (en) 2019-11-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111457175A (en) * 2020-03-30 2020-07-28 江苏百德特种合金有限公司 Connect comparatively convenient and can prevent stainless steel welded tube of weeping

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08166091A (en) * 1994-12-13 1996-06-25 Kuraray Plast Kk Metallic expansion bellows tube
FR2737548A1 (en) * 1995-07-31 1997-02-07 Nobel Plastiques Friction welded connection mouthpiece for flexible thermoplastic pipework - has accepting end as two concentric cylindrical walls separated by annular space to accept pipe end so eliminating support mandrel
WO2005026600A1 (en) * 2003-09-09 2005-03-24 Friedrich Pröwig Inh. Gerda Wiele GmbH & Co. KG Flexible metal tube and method for the production of a metal tube
CN1702242A (en) * 2005-07-07 2005-11-30 哈尔滨工业大学星河实业有限公司 Steel band reinforced plastic drainpipe and method and apparatus for manufacturing the same
CN2798267Y (en) * 2005-05-19 2006-07-19 党福安 Mine explosion insulating type dry transformer case
EP1873438A1 (en) * 2006-06-29 2008-01-02 Plastiflex Belgium Flexible hose combination
CN201103411Y (en) * 2007-11-05 2008-08-20 蒯一希 Helical enhancement type mining pumping wind pipe
KR20090000053U (en) * 2007-06-28 2009-01-07 김대식 Spiral type flexible pipe having improved connecting end
DE102009021859A1 (en) * 2009-05-19 2010-11-25 Robert Geiger Technische Bauteile Gmbh Flexible part for gas flow channel, has bellows partially made of flexible material and suspendable with profile bars at free marginal edge, where profile bars form end-region and exhibit u-shaped cross-section
DE102010030718A1 (en) * 2010-06-30 2012-01-05 Lisa Dräxlmaier GmbH Oil tight pipe connection for connecting corrugated pipe at cylinder head bonnet of engine, has terminal piece defining annular groove, where outer diameter of groove is larger than outer diameter of pipe
CN102422066A (en) * 2009-03-03 2012-04-18 坎特普瑞滋有限公司 Improved tubes for high temperature industrial application and methods for producing same
CN204879100U (en) * 2015-06-28 2015-12-16 广西金滩管业科技有限公司 Bellows pipe fitting
CN205190996U (en) * 2015-11-10 2016-04-27 张弛 Double -walled ripple plastic steel pipe
CN207034434U (en) * 2017-07-14 2018-02-23 安徽京通旺管道科技有限公司 A kind of reinforcement type GRP pipe
CN208605769U (en) * 2018-06-22 2019-03-15 天津世纪博雅预应力科技有限公司 A kind of valve Double-bellows sealing structure
CN208859135U (en) * 2018-08-23 2019-05-14 天津市汉兴环保科技有限公司 A kind of water inlet pipe convenient for trade effluent cleaning
CN209245496U (en) * 2018-12-24 2019-08-13 青岛柯瑞达新型材料有限公司 New Large Caliber winding pipe
CN210739586U (en) * 2019-08-15 2020-06-12 河北华整实业有限公司 Novel mining spiral corrugated pipe

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08166091A (en) * 1994-12-13 1996-06-25 Kuraray Plast Kk Metallic expansion bellows tube
FR2737548A1 (en) * 1995-07-31 1997-02-07 Nobel Plastiques Friction welded connection mouthpiece for flexible thermoplastic pipework - has accepting end as two concentric cylindrical walls separated by annular space to accept pipe end so eliminating support mandrel
WO2005026600A1 (en) * 2003-09-09 2005-03-24 Friedrich Pröwig Inh. Gerda Wiele GmbH & Co. KG Flexible metal tube and method for the production of a metal tube
CN2798267Y (en) * 2005-05-19 2006-07-19 党福安 Mine explosion insulating type dry transformer case
CN1702242A (en) * 2005-07-07 2005-11-30 哈尔滨工业大学星河实业有限公司 Steel band reinforced plastic drainpipe and method and apparatus for manufacturing the same
EP1873438A1 (en) * 2006-06-29 2008-01-02 Plastiflex Belgium Flexible hose combination
KR20090000053U (en) * 2007-06-28 2009-01-07 김대식 Spiral type flexible pipe having improved connecting end
CN201103411Y (en) * 2007-11-05 2008-08-20 蒯一希 Helical enhancement type mining pumping wind pipe
CN102422066A (en) * 2009-03-03 2012-04-18 坎特普瑞滋有限公司 Improved tubes for high temperature industrial application and methods for producing same
DE102009021859A1 (en) * 2009-05-19 2010-11-25 Robert Geiger Technische Bauteile Gmbh Flexible part for gas flow channel, has bellows partially made of flexible material and suspendable with profile bars at free marginal edge, where profile bars form end-region and exhibit u-shaped cross-section
DE102010030718A1 (en) * 2010-06-30 2012-01-05 Lisa Dräxlmaier GmbH Oil tight pipe connection for connecting corrugated pipe at cylinder head bonnet of engine, has terminal piece defining annular groove, where outer diameter of groove is larger than outer diameter of pipe
CN204879100U (en) * 2015-06-28 2015-12-16 广西金滩管业科技有限公司 Bellows pipe fitting
CN205190996U (en) * 2015-11-10 2016-04-27 张弛 Double -walled ripple plastic steel pipe
CN207034434U (en) * 2017-07-14 2018-02-23 安徽京通旺管道科技有限公司 A kind of reinforcement type GRP pipe
CN208605769U (en) * 2018-06-22 2019-03-15 天津世纪博雅预应力科技有限公司 A kind of valve Double-bellows sealing structure
CN208859135U (en) * 2018-08-23 2019-05-14 天津市汉兴环保科技有限公司 A kind of water inlet pipe convenient for trade effluent cleaning
CN209245496U (en) * 2018-12-24 2019-08-13 青岛柯瑞达新型材料有限公司 New Large Caliber winding pipe
CN210739586U (en) * 2019-08-15 2020-06-12 河北华整实业有限公司 Novel mining spiral corrugated pipe

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
吴军,魏俊,苏良湖等编著: "村镇生活污水处理技术及管理维护", vol. 1, 31 July 2019, 冶金工业出版社, pages: 77 - 78 *
蒋淑芬: "不锈钢瓦斯管西山煤电初显成效", Retrieved from the Internet <URL:http://www.ecorr.org.cn/dhTJDAOHANG/fhjs/jishuyingyong/2013-06-03/3186.html> *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111457175A (en) * 2020-03-30 2020-07-28 江苏百德特种合金有限公司 Connect comparatively convenient and can prevent stainless steel welded tube of weeping

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