CN205781649U - A kind of axial expansion joint - Google Patents
A kind of axial expansion joint Download PDFInfo
- Publication number
- CN205781649U CN205781649U CN201620085365.3U CN201620085365U CN205781649U CN 205781649 U CN205781649 U CN 205781649U CN 201620085365 U CN201620085365 U CN 201620085365U CN 205781649 U CN205781649 U CN 205781649U
- Authority
- CN
- China
- Prior art keywords
- corrugated tube
- expansion joint
- oversheath
- utility
- mozzle
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 230000032798 delamination Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 230000008676 import Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
This utility model belongs to pipe network expansion joint technical field, is specifically related to a kind of axial expansion joint, and including male connection, PVC clad, oversheath, corrugated tube and mozzle, wherein corrugated tube two ends are located in male connection；Being connected to mozzle in corrugated tube, outer layer is provided with PVC clad and oversheath, and wherein the thickness of PVC clad is 0.3mm.This utility model uses the expansion joint that corrugated tube is made, and can stretch in the axial direction, allow also to bend on a small quantity；And in corrugated tube, it is connected to mozzle, the outer layer of corrugated tube is provided with oversheath, expansion joint is made to have the features such as high temperature resistant, high pressure resistant, anticorrosion, avoid that the unsafe factors such as pressure instability, easy delamination tear, explosion occur in application process, this utility model can be widely applied to the service life of boats and ships, central air-conditioning pump and the import and export etc. of electromotor, effective extension device and system.
Description
Technical field
This utility model relates to pipe network expansion joint technical field, is specifically related to a kind of axial expansion joint.
Background technology
Expansion joint is mainly used in compensating the dilatation that pipeline produces because of variations in temperature, is also used for pipeline because of needs such as mounting and adjusting
Length compensation, be broadly divided into bent-tube boiler expansion joint, bellows expansion joint and telescopic extension joint.Existing bellows expansion joint is because of tool
There is saving space, save the advantages such as material and be widely used.But it is not reasonable that existing bellows expansion joint also exists design,
Structure is complicated, resistance to be forced down, install the shortcomings such as inconvenience.
Utility model content
1, to solve the technical problem that
The design of existing bellows expansion joint is unreasonable, structure is complicated, resistance to force down, install asking of inconvenience in order to solve for this utility model
Topic, it is provided that a kind of reasonable in design, simple in construction, compound axial-type expansion joint high pressure resistant, easy for installation.
2, technical scheme
For achieving the above object, this utility model adopts the following technical scheme that
A kind of axial expansion joint, including oversheath, corrugated tube and mozzle, also includes male connection, PVC clad；
Wherein the thickness of PVC clad is 0.3mm, is located between corrugated tube and oversheath；Wherein corrugated tube two is located in male connection
End；Being connected to mozzle in corrugated tube, outer layer is provided with PVC clad and oversheath.
Further, described male connection is standard thread form, it is possible to customize screw thread according to customer requirement.
Further, described PVC clad has feature fire-retardant, high temperature resistant, corrosion resistant, wraps corrugated tube.
Further, described oversheath is rustless steel oversheath.
Further, described corrugated tube is metal corrugated stainless steel tubing.
3, beneficial effect:
(1) this utility model uses the expansion joint that corrugated tube is made, and can stretch in the axial direction, allow also to bend on a small quantity, simultaneously
The effectively save space of energy, saving material, reduce manufacturing cost；
(2) this utility model uses screw connection structure, and the connection at two ends can directly be threaded connection, and need not be inserted into by direct pipe
Pipeline welds again, the most easier for installation；
(3) this utility model is connected to mozzle in corrugated tube, and the outer layer of corrugated tube is provided with PVC clad and oversheath so that
Expansion joint has the features such as high temperature resistant, high pressure resistant, anticorrosion, it is to avoid occur in application process pressure instability, easy delamination tear,
The problems such as explosion；
(4) this utility model can be widely applied to boats and ships, central air-conditioning pump and the import and export etc. of electromotor, effective extension device with
The service life of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, male connection；2, PVC clad；3, oversheath；4, corrugated tube；5, mozzle.
Detailed description of the invention
For this utility model is better described, it is simple to understand the technical solution of the utility model, typical case of the present utility model but non-limit
The embodiment of property processed is as follows:
Embodiment 1
As it is shown in figure 1, axial expansion joint, including male connection 1, PVC clad 2, oversheath 3, corrugated tube 4 and
Mozzle 5, wherein corrugated tube 4 two ends are located in male connection 1；Being connected to mozzle 5 in corrugated tube 4, outer layer is provided with PVC
Clad 2 and oversheath 3；Wherein, oversheath 3 is fixed with corrugated tube 4 by bolt；In the present embodiment, use corrugated tube 4
Effect be to stretch in the axial direction, allow also to bend on a small quantity, simultaneously can effectively save space, save material, reduce
Manufacturing cost.
Described male connection 1 is standard thread form, it is possible to customizes screw thread according to customer requirement, in the present embodiment, uses this
The effect planting structure is that the connection at two ends can directly be threaded connection, and need not be inserted in pipeline by direct pipe and weld, relatively again
For or the most threaded structure easier for installation.
The thickness of described PVC clad 2 is 0.3mm, in the present embodiment, uses the effect of PVC clad to be PVC material
Material has feature fire-retardant, high temperature resistant, corrosion resistant, can improve the heat-resisting quantity of expansion joint, anti-corrosive properties further, and prolongation makes
With the life-span, improve the safety used.
Described oversheath 3 is rustless steel oversheath, in the present embodiment, uses the effect of rustless steel oversheath to be to improve further
The anti-corrosive properties of expansion joint, increase the service life.
Described corrugated tube 4 is metal bellows, in the present embodiment, uses the effect of metal bellows to be to have high temperature resistant, resistance to
The feature such as high pressure, anticorrosion, such that it is able to protection equipment, protection environment, extension device and the service life of system.
The foregoing is only embodiments more of the present utility model, be not limiting as this utility model, all employing equivalents or equivalence
The technical scheme that the mode of conversion is obtained, all falls within protection domain of the present utility model.
Claims (5)
1. an axial expansion joint, including oversheath (3), corrugated tube (4) and mozzle (5), it is characterised in that described expansion joint also includes male connection (1), PVC clad (2)；Corrugated tube (4) two ends are located in described male connection (1)；The thickness of described PVC clad (2) is 0.3mm, is located between corrugated tube (4) and oversheath (3)；Mozzle (5) it is connected in described corrugated tube (4).
2. an axial expansion joint as claimed in claim 1, it is characterised in that described male connection (1) is standard thread form.
3. an axial expansion joint as claimed in claim 1, it is characterised in that described PVC clad (2) wraps corrugated tube (4).
4. an axial expansion joint as claimed in claim 1, it is characterised in that described oversheath (3) is rustless steel oversheath.
5. an axial expansion joint as claimed in claim 1, it is characterised in that described corrugated tube (4) is metal bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085365.3U CN205781649U (en) | 2016-01-26 | 2016-01-26 | A kind of axial expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620085365.3U CN205781649U (en) | 2016-01-26 | 2016-01-26 | A kind of axial expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781649U true CN205781649U (en) | 2016-12-07 |
Family
ID=57413176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620085365.3U Active CN205781649U (en) | 2016-01-26 | 2016-01-26 | A kind of axial expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781649U (en) |
-
2016
- 2016-01-26 CN CN201620085365.3U patent/CN205781649U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Linlin Document name: payment instructions |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Linlin Document name: payment instructions |