CN204986044U - Double -walled heat preservation bellows - Google Patents
Double -walled heat preservation bellows Download PDFInfo
- Publication number
- CN204986044U CN204986044U CN201520749388.5U CN201520749388U CN204986044U CN 204986044 U CN204986044 U CN 204986044U CN 201520749388 U CN201520749388 U CN 201520749388U CN 204986044 U CN204986044 U CN 204986044U
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- China
- Prior art keywords
- wall
- bellows
- heat preservation
- double
- utility
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- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a double -walled heat preservation bellows, this bellows mainly comprises outer wall, inner wall and heat preservation, and its outer wall is a concave -convex structure's a ripple wall, and the inner wall is a level and smooth wall, and the inner wall presss from both sides the heat preservation in the centre with the outer wall tightly. The utility model discloses owing to be provided with the heat preservation between inner wall and outer wall, improved the thermal insulation performance of insulating tube, solved the poor problem of present double -walled bellows heat insulating ability, guaranteed also that the bellows also is difficult for the frost crack under the microthermal climate circumstances such as winter, lengthened the life of bellows simultaneously.
Description
Technical field
The utility model relates to pipeline field, particularly a kind of Double wall insulation bellows.
Background technique
Double-wall corrugated pipe is a kind of novel tube with ring structure outer wall and smooth internal walls, and first the beginning of the eighties succeeds in developing in Germany, through development and improvement for many years, by single Cultivar development to complete product line.Very ripe in production technology and operation technique at present, due to the performance of its excellence and the cost of relatively economical, obtain great promotion and application in developed countries such as America and Europes.What existing double wave bellows was selected is all PVC＝polyvinyl chloride extruding and moulding, has that inner wall smooth, discharge value are large, lightweight, corrosion-resistant etc. to have superiority, and is the best substitute of the various tubing of embedded underground.But its heat insulating ability is poor, in winter pipe, the water capacity is easily frozen, and causes bellows by the generation of bursting by freezing phenomenon.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of Double wall insulation bellows, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the utility model provides following technological scheme: described bellows forms primarily of outer wall, inwall and thermal insulation layer, described outer wall is a kind of bellows wall of concaveconvex structure, and described inwall is a kind of smooth walls, and thermal insulation layer is clipped in the middle by described inwall and described outer wall tightly.
Preferably, described bellows is also with seal ring.
Preferably, described outer wall surface lower end is also provided with and tightens groove.
Preferably, described bellows upper end is also provided with multiple function through hole.
The beneficial effect of above technological scheme is adopted to be: the utility model is owing to being provided with thermal insulation layer between the inner walls and the outer, improve the thermal insulation property of thermal insulation pipe, solve the problem of current double-wall corrugated pipe heat insulating ability difference, also ensure that the bellows also not easily bursting by freezing in microthermal climate situation such as in the winter time simultaneously, extend the working life of bellows.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is plan view of the present utility model.
Wherein, 1-outer wall, 2-inwall, the solid enlarging of 3-, 4-thermal insulation layer, 5-function through hole, 6-tightens groove, 7-seal ring.
Embodiment
Preferred implementation of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 with Fig. 2 shows embodiment of the present utility model: described bellows is primarily of outer wall 1, inwall 2 and thermal insulation layer group 4 one-tenth, described outer wall 1 is a kind of bellows wall of concaveconvex structure, described inwall 2 is a kind of smooth walls, and thermal insulation layer 4 is clipped in the middle with described outer wall 2 by described inwall 1 tightly.One end of described bellows is solid enlarging 3 structure, and described bellows is also with seal ring 7, and the described surperficial lower end of outer wall 2 is also provided with and tightens groove 6, and described outer wall 1 surface is also provided with multiple function through hole 5.
The utility model owing to being provided with thermal insulation layer 4 between inwall 1 and outer wall 2, improve the thermal insulation property of thermal insulation pipe, solve the problem of current double-wall corrugated pipe heat insulating ability difference, also ensure that the bellows also not easily bursting by freezing in microthermal climate situation such as in the winter time simultaneously, extend the working life of bellows.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. a Double wall insulation bellows, it is characterized in that, described bellows is primarily of outer wall, inwall and thermal insulation layer composition, and described outer wall is a kind of bellows wall of concaveconvex structure, described inwall is a kind of smooth walls, and thermal insulation layer is clipped in the middle by described inwall and described outer wall tightly.
2. a kind of Double wall insulation bellows according to claim 1, it is characterized in that, described bellows is also with seal ring.
3. a kind of Double wall insulation bellows according to claim 1, is characterized in that, described outer wall surface lower end is also provided with and tightens groove.
4. a kind of Double wall insulation bellows according to claim 1, is characterized in that, described outer wall surface is also provided with multiple function through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749388.5U CN204986044U (en) | 2015-09-24 | 2015-09-24 | Double -walled heat preservation bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749388.5U CN204986044U (en) | 2015-09-24 | 2015-09-24 | Double -walled heat preservation bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986044U true CN204986044U (en) | 2016-01-20 |
Family
ID=55120412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520749388.5U Expired - Fee Related CN204986044U (en) | 2015-09-24 | 2015-09-24 | Double -walled heat preservation bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156766A (en) * | 2015-09-24 | 2015-12-16 | 江苏广通管业制造有限公司 | Double-wall heat-preserving corrugated pipe |
-
2015
- 2015-09-24 CN CN201520749388.5U patent/CN204986044U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156766A (en) * | 2015-09-24 | 2015-12-16 | 江苏广通管业制造有限公司 | Double-wall heat-preserving corrugated pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160924 |