CN207064940U - Double shielding anti-leak non-metal expansion joint - Google Patents
Double shielding anti-leak non-metal expansion joint Download PDFInfo
- Publication number
- CN207064940U CN207064940U CN201720702053.7U CN201720702053U CN207064940U CN 207064940 U CN207064940 U CN 207064940U CN 201720702053 U CN201720702053 U CN 201720702053U CN 207064940 U CN207064940 U CN 207064940U
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- CN
- China
- Prior art keywords
- tube
- bellows
- outer tube
- double
- expansion joint
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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 utility model discloses a kind of double shielding anti-leak non-metal expansion joint; include a bellows; one end of the bellows is provided with a first flange; the other end of the bellows is provided with a second flange; the tube wall of the bellows is double-decker; include outer tube and inner tube; the thickness of outer tube is 2 2.5 times of interior tube thickness; the outer tube is connected between inner tube by the dowel of more equal lengths; closed inner space is formed between the outer tube and inner tube; lubricant is filled in the inner space, the outer tube is double-decker, includes basic unit and anticorrosive coat.Bellows is designed to double-decker by double shielding anti-leak non-metal expansion joint of the present utility model; respectively outer tube and inner tube; connected between outer tube and inner tube by dowel; inner space filling lubricant between outer tube and inner tube; ripple tube wall ruptures caused by so on the one hand reducing bellows internal stress; on the other hand double protection effect, prevent leakage are also played.
Description
Technical field
A kind of expansion joint is the utility model is related to, more precisely, being a kind of double shielding anti-leak non-metal expansion joint.
Background technology
Expansion joint is traditionally also compensator, or telescopic joint.By form its operative body bellows and end pipe, support,
The annexes such as flange, conduit form.Expansion joint is to compensate for the additional stress caused by temperature difference and mechanical oscillation, and is arranged on
A kind of flexible structure on container casing or pipeline.Using effective dilatation of its operative body bellows, with absorption line,
Conduit, container etc. are by the reason such as expanding with heat and contract with cold and caused change in size, or compensation pipes, conduit, container etc. is axial, laterally
And angular displacement.Noise-and-vibration-reduction is can also be used for, in heat supply, during in order to prevent that heat supply pipeline from heating up, because thermal stretching or temperature should
Power and cause pipe deforming or destruction, it is necessary to set compensator on pipeline, to compensate the thermal stretching of pipeline, so as to reduce tube wall
Stress and act on the active force on valve member or supporting structure.Expansion joint stretching repeatedly due to bellows in use
Corrugated pipe wall can be caused to rupture and then cause the leakage of expansion joint.
Utility model content
The utility model is mainly to solve the technical problem present in prior art, and so as to provide, a kind of double shielding is anti-to let out
Leak non-metal expansion joint.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
A kind of double shielding anti-leak non-metal expansion joint, comprising a bellows, one end of the bellows is provided with one the
One flange, the other end of the bellows are provided with a second flange, and the tube wall of the bellows is double-decker, comprising outer tube and
Inner tube, the thickness of outer tube are 2-2.5 times of interior tube thickness, are connected between the outer tube and inner tube by the dowel of more equal lengths
Connect, closed inner space is formed between the outer tube and inner tube, lubricant is filled in the inner space, the outer tube is tied to be double-deck
Structure, include basic unit and anticorrosive coat.
As the utility model preferred embodiment, the length of described dowel is 2-5mm.
As the utility model preferred embodiment, the thickness ratio of described basic unit and anticorrosive coat is 8：1.
Bellows is designed to double-decker by double shielding anti-leak non-metal expansion joint of the present utility model, is respectively outer
Pipe and inner tube, are connected between outer tube and inner tube by dowel, the inner space filling lubricant between outer tube and inner tube, such side
Ripple tube wall ruptures caused by bellows internal stress is reduced in face, on the other hand also plays double protection effect, prevent leakage.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of double shielding anti-leak non-metal expansion joint of the present utility model；
Fig. 2 is the double-decker schematic diagram of the bellows in Fig. 1；
Fig. 3 is the structural representation of the outer tube in Fig. 2.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
As shown in Figure 1-Figure 3, a kind of double shielding anti-leak non-metal expansion joint 1, includes a bellows 10, the ripple
One end of pipe 10 is provided with a first flange 20, and the other end of the bellows 10 is provided with a second flange 30, the bellows 10
Tube wall be double-decker, comprising outer tube 101 and inner tube 102, the thickness of outer tube 101 is 2-2.5 times of the thickness of inner tube 102, institute
State and connected between outer tube 101 and inner tube 102 by the dowel 103 of more equal lengths, shape between the outer tube 101 and inner tube 102
Into closed inner space, lubricant is filled in the inner space, the outer tube 101 is double-decker, includes the He of basic unit 1011
Anticorrosive coat 1012.
It is 2-5mm as the length to the further improvement of the utility model, described dowel 103.
As to the further improvement of the utility model, the thickness ratio of described basic unit 1011 and anticorrosive coat 1012 is 8：
1。
Bellows is designed to double-decker by the double shielding anti-leak non-metal expansion joint of the utility model, is respectively outer
Pipe and inner tube, are connected between outer tube and inner tube by dowel, the inner space filling lubricant between outer tube and inner tube, such side
Ripple tube wall ruptures caused by bellows internal stress is reduced in face, on the other hand also plays double protection effect, prevent leakage.
Only illustrate mentality of designing of the present utility model in one embodiment above, in the case where system allows,
The utility model can expand to while external more functional modules, so as to extend its function to greatest extent.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (3)
- A kind of 1. double shielding anti-leak non-metal expansion joint（1）, it is characterised in that include a bellows（10）, the ripple Pipe（10）One end be provided with a first flange（20）, the bellows（10）The other end be provided with a second flange（30）, it is described Bellows（10）Tube wall be double-decker, include outer tube（101）And inner tube（102）, outer tube（101）Thickness be inner tube （102）2-2.5 times of thickness, the outer tube（101）And inner tube（102）Between pass through the dowels of more equal lengths（103）Even Connect, the outer tube（101）And inner tube（102）Between form closed inner space, fill lubricant in the inner space, it is described outer Pipe（101）For double-decker, basic unit is included（1011）And anticorrosive coat（1012）.
- 2. double shielding anti-leak non-metal expansion joint according to claim 1, it is characterised in that described dowel （103）Length be 2-5mm.
- 3. double shielding anti-leak non-metal expansion joint according to claim 2, it is characterised in that described basic unit （1011）And anticorrosive coat（1012）Thickness ratio be 8：1 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702053.7U CN207064940U (en) | 2017-06-15 | 2017-06-15 | Double shielding anti-leak non-metal expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702053.7U CN207064940U (en) | 2017-06-15 | 2017-06-15 | Double shielding anti-leak non-metal expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064940U true CN207064940U (en) | 2018-03-02 |
Family
ID=61509748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720702053.7U Expired - Fee Related CN207064940U (en) | 2017-06-15 | 2017-06-15 | Double shielding anti-leak non-metal expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061915A (en) * | 2017-06-15 | 2017-08-18 | 江苏长风波纹管有限公司 | Double shielding anti-leak non-metal expansion joint |
-
2017
- 2017-06-15 CN CN201720702053.7U patent/CN207064940U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061915A (en) * | 2017-06-15 | 2017-08-18 | 江苏长风波纹管有限公司 | Double shielding anti-leak non-metal expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20210615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |