CN204127507U - A kind of winding bellows - Google Patents
A kind of winding bellows Download PDFInfo
- Publication number
- CN204127507U CN204127507U CN201420460642.5U CN201420460642U CN204127507U CN 204127507 U CN204127507 U CN 204127507U CN 201420460642 U CN201420460642 U CN 201420460642U CN 204127507 U CN204127507 U CN 204127507U
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- wall layer
- strip shape
- shape body
- winding bellows
- wall
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Abstract
The utility model discloses a kind of winding bellows, comprise inner wall layer and the outer wall layer being wrapped in inner wall layer outer surface, described inner wall layer is planomural face, is provided with the foam filled bed of material between described inner wall layer and outer wall layer.The utility model can increase the ring stiffness of pipeline, plays buffer function to external impacts, and is more conducive to the manufacturing that Wrapping formed technology completes heavy caliber pipe.
Description
Technical field
The utility model relates to a kind of winding bellows.
Background technique
Domestic existing heavy caliber bellows, mainly contains double-wall corrugated pipe and steel band reinforced spiral ripple pipe.But in use there is following shortcoming in them:
1, double-wall corrugated pipe is because limiting by shaping die, can only produce pipe with small pipe diameter pipe, and ring stiffness is lower.
2, steel strip reinforced ripple entwining tube, have employed steel strip reinforced ripple, improves ring stiffness, but reduce the life-span simultaneously, increases potential problem; Because moulding, both steel are that unlike material shrinkage is different, and bonding strength is poor, and in pipe end joint, tubing inside and outside wall is easy to crack, and can corrode steel band after cracking, after corrosion, ring stiffness is lower, there is hidden danger for municipal pipeline.
Model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of winding bellows, it solve the problem that double-wall corrugated pipe causes ring stiffness low because of only two layers of plastic tube wall, also solve the problem that steel strip reinforced ripple entwining tube is moulded, both steel cause bonding strength high, not easy to crack because of unlike material.
The technical solution adopted in the utility model is as follows:
A kind of winding bellows, comprise inner wall layer and the outer wall layer being wrapped in inner wall layer outer surface, described inner wall layer is planomural face, is provided with the foam filled bed of material between described inner wall layer and outer wall layer.
The utility model is provided with the foam filled bed of material between inwall and outer wall, due to the supporting effect of foam filled material when making outer wall extruded by external force, not only play reinforcement effect, and play the buffer function of power, greatly reduce the active force of external force to pipe material inner wall, add the ring stiffness of tubing on the whole, improve working life.In addition, owing to adding the foam filled material of one deck, also buffer function can be played when tubing produces expand with heat and contract with cold by such environmental effects.
Described foam filled material is the strip shape body plastic cement bed of material.The foam filled material that the utility model adopts is extruded strip shape body plastic rubber material, and its curl is wrapped in inner wall layer, forms helical corrugation shape, becomes the strip shape body plastic cement bed of material.Such strip shape body plastic cement bed of material overall structure is fine and close, compare just at cavity filler particles shape plastic rubber material, it is to the bracing reinforcement better effects if of tube wall, and be all the most easily to the manufacturing of large tubing, being squeezed into strip shape body in advance by making foam filled material to combine with outer wall and inwall again, the more convenient production of Wrapping formed technology can be used.In addition, can according to ring stiffness requirement, foam filled material can select the resin plastic glue material of different densities plastic foam material and different densities.
The described strip shape body plastic cement bed of material is the strip shape body structure being wrapped in inner wall layer outer surface twist.
Described outer wall layer is helical fissure shape.
Described outer wall layer comprise some for being wound around the strip shape body plastic cement bed of material coated section with the linkage section being connected adjacent coated section, the thickness of described linkage section is 2 times of coated section of thickness.
In the utility model; the strip shape body plastic cement bed of material belongs to more easily damaged position with the both sides, joint of inner wall layer; easily there is slight crack by interior External Force Acting; therefore the linkage section thickness benefits of outer wall layer is increased in the both sides, joint protecting the strip shape body plastic cement bed of material and inner wall layer; also make linkage section firmer simultaneously, make whole pipeline not be subject to outside destroy.In addition, the thickness that linkage section is set here be 2 times of coated section of thickness just one preferably select, but do not limit other thickness, the thickness setting of more than 2 times is all fine.
Compared with prior art, the beneficial effect had is the utility model: it can increase the ring stiffness of pipeline, plays buffer function to external impacts, and is more conducive to the manufacturing that Wrapping formed technology completes heavy caliber pipe.
Accompanying drawing explanation
Fig. 1: plan view of the present utility model;
Fig. 2: side view of the present utility model;
Fig. 3: partial enlarged drawing of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further details.
Embodiment 1:
As shown in Figure 1, Figure 2 and Figure 3, a kind of winding bellows, comprise inner wall layer 1 and the outer wall layer 2 being wrapped in inner wall layer 1 outer surface, described inner wall layer 1 is planomural face, described outer wall layer 2 is helical fissure shape, is provided with the strip shape body plastic cement bed of material 3 between described inner wall layer 1 and outer wall layer 2.
Described outer wall layer 2 comprise some for be wound around coated section 6 of the strip shape body plastic cement bed of material be connected the linkage section 7 of adjacent coated section, the thickness of described linkage section 7 is identical with the thickness of coated section 6.
Embodiment 2:
Except above-mentioned Fig. 3, composition graphs 4, a kind of thickness being wound around bellows and manufacture method thereof the linkage section 7 of parietal layer 2 is except as noted outside the twice of coated section of 6 thickness, and other situation is with embodiment 1.
Claims (5)
1. a winding bellows, comprise inner wall layer and the outer wall layer being wrapped in inner wall layer outer surface, described inner wall layer is planomural face, it is characterized in that, is provided with the foam filled bed of material between described inner wall layer and outer wall layer.
2. winding bellows according to claim 1, is characterized in that, the described foam filled bed of material is the strip shape body plastic cement bed of material.
3. winding bellows according to claim 2, is characterized in that, the described strip shape body plastic cement bed of material is the strip shape body structure being wrapped in inner wall layer outer surface twist.
4. the winding bellows according to claim 1 or 3, is characterized in that, described outer wall layer is helical fissure shape.
5. winding bellows according to claim 4, is characterized in that, described outer wall layer comprise some for being wound around the strip shape body plastic cement bed of material coated section with the linkage section being connected adjacent coated section, the thickness of described linkage section is 2 times of coated section of thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460642.5U CN204127507U (en) | 2014-08-15 | 2014-08-15 | A kind of winding bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460642.5U CN204127507U (en) | 2014-08-15 | 2014-08-15 | A kind of winding bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127507U true CN204127507U (en) | 2015-01-28 |
Family
ID=52383863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460642.5U Active CN204127507U (en) | 2014-08-15 | 2014-08-15 | A kind of winding bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295815A (en) * | 2014-08-15 | 2015-01-21 | 鹤山联塑实业发展有限公司 | Winding corrugated pipe and manufacturing method thereof |
-
2014
- 2014-08-15 CN CN201420460642.5U patent/CN204127507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295815A (en) * | 2014-08-15 | 2015-01-21 | 鹤山联塑实业发展有限公司 | Winding corrugated pipe and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |