CN101846222A - General purpose steel-plastic flange expansion joint - Google Patents
General purpose steel-plastic flange expansion joint Download PDFInfo
- Publication number
- CN101846222A CN101846222A CN200910029538A CN200910029538A CN101846222A CN 101846222 A CN101846222 A CN 101846222A CN 200910029538 A CN200910029538 A CN 200910029538A CN 200910029538 A CN200910029538 A CN 200910029538A CN 101846222 A CN101846222 A CN 101846222A
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- CN
- China
- Prior art keywords
- steel
- expansion joint
- general purpose
- gland
- seal ring
- 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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Abstract
The invention discloses a general purpose steel-plastic flange expansion joint, which comprises a steel main body and a gland, wherein a low-density polyethylene lining layer is arranged in the steel body, the end combined with the gland on the inner side of the steel main body is provided with a seal ring, and the seal ring is contacted with the steel body by slopes. The invention has the advantages of reasonable structure, smooth inner wall, small damage by water, favorable corrosion resistance and good airtightness, and is an ideal accessory for salvage in water supply enterprises.
Description
Technical field:
The present invention relates to a kind of flange expansion joint.
Background technique:
Existing flange expansion joint, there is defective in its inwall at aspects such as slickness, decay resistances, and the sealability between gland and the body is undesirable.
Summary of the invention:
The object of the present invention is to provide a kind of rational in infrastructure, the general purpose steel-plastic flange expansion joint of good working effect.
Technical solution of the present invention is:
A kind of general purpose steel-plastic flange expansion joint, comprise steel body, gland, it is characterized in that: the low density polyethylene layer inside liner is set in steel body, steel body with gland binding end inboard, seal ring is set, and takes the form of inclined plane between seal ring and the steel body and contact.
Between seal ring and gland, sealing gasket is set.
The present invention is rational in infrastructure, and inner wall smooth is unimpeded, damage by water is little, corrosion resistance and good, good airproof performance.It is the desirable repairing accessory of vast water undertaking.
Description of drawings:
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of one embodiment of the invention.
Embodiment:
A kind of general purpose steel-plastic flange expansion joint, comprise steel body 1, gland 5, low density polyethylene layer inside liner 2 be set in steel body, steel body with gland binding end inboard, seal ring 3 is set, and takes the form of inclined plane between seal ring and the steel body and contact.Sealing gasket 4 is set between seal ring and gland.Also have bolt 6, nut 7 among the figure.
Claims (2)
1. general purpose steel-plastic flange expansion joint, comprise steel body, gland, it is characterized in that: the low density polyethylene layer inside liner is set in steel body, steel body with gland binding end inboard, seal ring is set, and takes the form of inclined plane between seal ring and the steel body and contact.
2. general purpose steel-plastic flange expansion joint according to claim 1 is characterized in that: between seal ring and gland sealing gasket is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029538A CN101846222A (en) | 2009-03-26 | 2009-03-26 | General purpose steel-plastic flange expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029538A CN101846222A (en) | 2009-03-26 | 2009-03-26 | General purpose steel-plastic flange expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101846222A true CN101846222A (en) | 2010-09-29 |
Family
ID=42770948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910029538A Pending CN101846222A (en) | 2009-03-26 | 2009-03-26 | General purpose steel-plastic flange expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101846222A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384329A (en) * | 2011-11-22 | 2012-03-21 | 黄有勇 | Dedicated expansion joint for plastic pipeline system |
-
2009
- 2009-03-26 CN CN200910029538A patent/CN101846222A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384329A (en) * | 2011-11-22 | 2012-03-21 | 黄有勇 | Dedicated expansion joint for plastic pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100929 |