CN103343857A - Novel unconstrained expansion joint - Google Patents
Novel unconstrained expansion joint Download PDFInfo
- Publication number
- CN103343857A CN103343857A CN2013103246723A CN201310324672A CN103343857A CN 103343857 A CN103343857 A CN 103343857A CN 2013103246723 A CN2013103246723 A CN 2013103246723A CN 201310324672 A CN201310324672 A CN 201310324672A CN 103343857 A CN103343857 A CN 103343857A
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- China
- Prior art keywords
- expansion joint
- novel
- corrugated pipe
- guide
- protective cover
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- 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.)
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Abstract
The invention relates to the technical field of expansion joint equipment and in particular relates to a novel unconstrained expansion joint. The novel unconstrained expansion joint comprises a corrugated pipe, a flow guide pipe internally connected with the corrugated pipe, and connecting pipes arranged at two ends of the corrugated pipe, wherein a protective cover is arranged outside the corrugated pipe, a supporting rod is supported between the corrugated pipe and the protective cover for supporting, one end of the protective cover is connected with the connecting pipes through guide frames, each guide frame comprises a guide rod and an ear plate, the ear plates and the connecting pipes are fixed together, and the guide rods and the ear plates are fixed through nuts. By adopting the structure, the phenomena of twisting and instability of a conventional axial type expansion joint which occur easily can be eliminated, and the novel unconstrained expansion joint has columnar stability and self-guiding capability, and also brings great convenience for piping insulation. In addition, the novel unconstrained expansion joint has the characteristics of simple structure, convenience in installation, small volume, safety and reliability, and the like, and can be widely applied to pipeline overhead installation and trench laying, as well as direct burial laying with compensation.
Description
Technical field
The present invention relates to the expansion joint equipment technical field, be specifically related to novel no restricted type expansion joint.
Background technique
Expansion joint also is slip joint traditionally, or corrugated expansion joint, be that effective dilatation in order to the elastic element that utilizes corrugated expansion joint absorbs pipeline, conduit or container by a kind of compensation device of former thereby the dimensional changes that produces such as expand with heat and contract with cold, belong to a kind of compensating element.But existing bellows expansion joint is in use, and is flexible limited, wearing and tearing easily, and especially under the condition of high temperature, phenomenons such as twist and warping and unstability easily take place in the process of regular experience rising-heat contracting-cold, have had a strong impact on the working life of expansion joint.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, easy for installation, volume is little, safe and reliable, can eliminate twist and warping and the novel no restricted type expansion joint of unstable phenomenon.
In order to solve the existing problem of background technique, the present invention is by the following technical solutions: novel no restricted type expansion joint, comprise bellows, with described bellows in the honeycomb duct that connects and the connecting tube of being located at described bellows two ends, the outside of described bellows is provided with protective housing, be provided with they sup-port between described bellows and the protective housing, one end of described protective housing is connected with connecting tube by leading truck, described leading truck comprises guide rod and otic placode, described otic placode and connecting tube are fixed, and described guide rod and otic placode nut are fixed.
The present invention has following beneficial effect: novel no restricted type expansion joint of the present invention, mainly comprise bellows, with bellows in the honeycomb duct that connects and the connecting tube of being located at the bellows two ends, wherein, the outside of bellows is provided with protective housing, be provided with they sup-port between bellows and the protective housing, an end of protective housing is connected with connecting tube by leading truck, and leading truck comprises guide rod and otic placode, otic placode and connecting tube are fixed, and guide rod and otic placode nut are fixed; The present invention adopts said structure, can eliminate conventional axial type expansion joint phenomenons such as twist and warping and unstability easily take place, and not only has column stability, also has from the guiding ability, and pipe insulation is also brought great convenience.In addition, characteristics such as that the present invention has is simple in structure, easy for installation, volume is little, safe and reliable can be widely used in built on stilts, the trench laying of pipeline, also can be applicable to balanced directly buried installation.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, novel no restricted type expansion joint, comprise bellows 1, with described bellows 1 in the honeycomb duct 2 that connects and the connecting tube 3 of being located at described bellows 1 two ends, the outside of described bellows 1 is provided with protective housing 4, be provided with strut 5 between described bellows 1 and the protective housing 4 and support, an end of described protective housing 4 is connected with connecting tube 3 by leading truck, and described leading truck comprises guide rod 6 and otic placode 7, described otic placode 7 is fixing with connecting tube 3, and described guide rod 6 and otic placode 7 nuts are fixed.Present embodiment eliminated fully conventional axial type expansion joint to incorgruous set spacing requirement, not only have column stability, also have from the guiding ability, simultaneously to pipe insulation is also brought great convenience.In addition, when present embodiment is applied to balanced directly buried installation, should establish inspection shaft or darkroom.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, other modifications that those of ordinary skills make technological scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. novel no restricted type expansion joint, it is characterized in that, comprise bellows (1), with the honeycomb duct (2) that connects in the described bellows (1) and the connecting tube (3) of being located at described bellows (1) two ends, the outside of described bellows (1) is provided with protective housing (4), being provided with strut (5) between described bellows (1) and the protective housing (4) supports, one end of described protective housing (4) is connected with connecting tube (3) by leading truck, described leading truck comprises guide rod (6) and otic placode (7), described otic placode (7) is fixing with connecting tube (3), and described guide rod (6) and otic placode (7) nut are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103246723A CN103343857A (en) | 2013-07-30 | 2013-07-30 | Novel unconstrained expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103246723A CN103343857A (en) | 2013-07-30 | 2013-07-30 | Novel unconstrained expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103343857A true CN103343857A (en) | 2013-10-09 |
Family
ID=49278675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103246723A Withdrawn CN103343857A (en) | 2013-07-30 | 2013-07-30 | Novel unconstrained expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103343857A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825464A (en) * | 1957-11-13 | 1959-12-16 | Power Flexible Tubing Company | Improvements relating to pipe expansion compensators |
| EP0252369A2 (en) * | 1986-07-05 | 1988-01-13 | Witzenmann GmbH Metallschlauch-Fabrik Pforzheim | Laterally and/or angularly compensating element made of metal for pipe systems under pressure |
| CN102278563A (en) * | 2011-05-29 | 2011-12-14 | 石家庄巨力科技有限公司 | pipeline expansion joint |
| CN102359693A (en) * | 2011-11-03 | 2012-02-22 | 无锡金龙石化冶金设备制造有限公司 | Long-life external pressure axial compensator |
| CN203068044U (en) * | 2013-01-13 | 2013-07-17 | 江苏贝特管件有限公司 | All-external-pressure balance corrugated compensator |
-
2013
- 2013-07-30 CN CN2013103246723A patent/CN103343857A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825464A (en) * | 1957-11-13 | 1959-12-16 | Power Flexible Tubing Company | Improvements relating to pipe expansion compensators |
| EP0252369A2 (en) * | 1986-07-05 | 1988-01-13 | Witzenmann GmbH Metallschlauch-Fabrik Pforzheim | Laterally and/or angularly compensating element made of metal for pipe systems under pressure |
| CN102278563A (en) * | 2011-05-29 | 2011-12-14 | 石家庄巨力科技有限公司 | pipeline expansion joint |
| CN102359693A (en) * | 2011-11-03 | 2012-02-22 | 无锡金龙石化冶金设备制造有限公司 | Long-life external pressure axial compensator |
| CN203068044U (en) * | 2013-01-13 | 2013-07-17 | 江苏贝特管件有限公司 | All-external-pressure balance corrugated compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131009 |