CN201944445U - Corrosion resistant strip bellows - Google Patents
Corrosion resistant strip bellows Download PDFInfo
- Publication number
- CN201944445U CN201944445U CN2010206763973U CN201020676397U CN201944445U CN 201944445 U CN201944445 U CN 201944445U CN 2010206763973 U CN2010206763973 U CN 2010206763973U CN 201020676397 U CN201020676397 U CN 201020676397U CN 201944445 U CN201944445 U CN 201944445U
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- China
- Prior art keywords
- bellows
- utility
- model
- protective layer
- sheath
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a corrosion resistant strip bellows, which comprises a bellows. A protective layer of nickel alloy plate is coated on the outer wall of the bellows. A U-shaped elastic steel strip which can adhere to the protective layer completely is set on the outer surface of protective layer in the trough of the bellows. The two ends of the bellows are provided with connecting joints, the outer diameter of which is slightly bigger than that of the crest of the protective layer. The utility model has a simple structure and long service life. The bellows has the characteristics of good flexibility, heat resistance, high corrosion resistance and good corrosion resistance. The connecting joints mounted on the two ends can facilitate the reasonable connection of the bellows and the plates at the two ends. The U-shaped elastic steel band with small rigidity will not constrain the compensation capacity of the utility model, and is a dedicated element for producing high quality metal hose and bellows expansion joint.
Description
Technical field
The utility model relates to a kind of bellows, relates in particular to the bellows that a kind of anti-corruption adds band.
Background technique
Is the compensator of flexible compensation element at present with the bellows, become day by day heat distribution pipeline lay in indispensable important pipe fitting.At big latus rectum, the application of high pressure for improving its voltage endurance capability, often installs the armour ring additional in the bellows trough, the armour ring is made two semicircular ring, be clipped in the bellows trough and tighten up with screw, this armour ring is processing difficulties not only, the assembling trouble, materials are many, and poor with the bellows stickiness, make the bellows discontinuity equalization, limited the compensation ability of bellows; Bellows has heat-resisting and certain antiseptic property, but for outdoor rainwater, trench humid air and the underground long-term corrosion that contains sour water, the deficiency that its antiseptic power just shows, the bellows that makes is anti-interior the pressure and compensate function because of corrosion loses, reduced the working life of bellows, and the measure of brushing anticorrosive paint outside bellows is inhomogeneous because of brushing again, and the defective of coating chance hot cracking, and do not reach preservative efficacy.
The model utility content
At the problem that above-mentioned prior art exists, the utility model purpose is to provide a kind of erosion resistance height, and the also high bellows of bearing capacity.
The technical solution of the utility model is: a kind of anti-corruption adds the bellows of band, comprise bellows, described bellows outer wall is coated with the sheath of a nickel alloy plate, on the sheath outer surface at bellows trough place, be provided with the U type flexible strip that can be fitted in fully on the sheath, the two ends of described bellows are provided with connecting head, and the external diameter of this connecting head is slightly larger than the diameter of sheath crest.
As preferably: the height of described U type flexible strip is no more than half of bellows wave height.
The beneficial effects of the utility model are: the utility model is simple in structure, easy processing, and flexible good, heat-resisting, the pressure-bearing height has high anti-corrosion capability, improve the utility model working life, two ends are provided with connecting head, are convenient to rationally be connected with the tube sheet at two ends, and U type flexible strip rigidity is little, therefore compensation ability of the present utility model is not restricted, and is the professional component of making high-test metal flexible pipe and bellows expansion joint.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, bellows; 2, sheath; 3, U type flexible strip; 4, connecting head.
Embodiment
Below in conjunction with accompanying drawing is that the utility model is described further.
Embodiment: referring to Fig. 1, the utility model comprises bellows 1, described bellows 1 outer wall is coated with the sheath 2 of a nickel alloy plate, on sheath 2 outer surfaces at bellows 1 trough place, be provided with the U type flexible strip 3 that can be fitted in fully on the sheath 2, and the height of this U type flexible strip 3 is no more than bellows 1 wave height half, the two ends of described bellows 1 are provided with connecting head 4, and the external diameter of this connecting head 4 is slightly larger than the diameter of sheath 2 crests.The utility model is simple in structure, easy processing, and flexible good, heat-resisting, the pressure-bearing height has high anti-corrosion capability, improve the utility model working life, two ends are provided with connecting head 4, are convenient to rationally be connected with the tube sheet at two ends, and U type flexible strip 3 rigidity are little, therefore compensation ability of the present utility model is not restricted, and is the professional component of making high-test metal flexible pipe and bellows 1 expansion joint.
Claims (2)
1. an anti-corruption adds the bellows of band, comprise bellows, it is characterized in that: described bellows outer wall is coated with the sheath of a nickel alloy plate, on the sheath outer surface at bellows trough place, be provided with the U type flexible strip that can be fitted in fully on the sheath, the two ends of described bellows are provided with connecting head, and the external diameter of this connecting head is slightly larger than the diameter of sheath crest.
2. add the bellows of band according to the described anti-corruption of claim 1, it is characterized in that: the height of described U type flexible strip is no more than half of bellows wave height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206763973U CN201944445U (en) | 2010-12-15 | 2010-12-15 | Corrosion resistant strip bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206763973U CN201944445U (en) | 2010-12-15 | 2010-12-15 | Corrosion resistant strip bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944445U true CN201944445U (en) | 2011-08-24 |
Family
ID=44471789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206763973U Expired - Fee Related CN201944445U (en) | 2010-12-15 | 2010-12-15 | Corrosion resistant strip bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944445U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090149A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Connecting structure for corrugated pipe and flanges |
| CN103090150A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Corrugated reducer pipe |
| CN104100795A (en) * | 2014-07-01 | 2014-10-15 | 江苏大力城电气有限公司 | Corrugated pipe special for corrugated expansion joint |
-
2010
- 2010-12-15 CN CN2010206763973U patent/CN201944445U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090149A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Connecting structure for corrugated pipe and flanges |
| CN103090150A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Corrugated reducer pipe |
| CN104100795A (en) * | 2014-07-01 | 2014-10-15 | 江苏大力城电气有限公司 | Corrugated pipe special for corrugated expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20111215 |