CN203604826U - Enhanced composite polyethylene polypropylene corrugated pipe - Google Patents
Enhanced composite polyethylene polypropylene corrugated pipe Download PDFInfo
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- CN203604826U CN203604826U CN201320504873.7U CN201320504873U CN203604826U CN 203604826 U CN203604826 U CN 203604826U CN 201320504873 U CN201320504873 U CN 201320504873U CN 203604826 U CN203604826 U CN 203604826U
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- bellows
- wall
- corrugated
- polyethylene polypropylene
- composite polyethylene
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Abstract
The utility model discloses an enhanced composite polyethylene polypropylene corrugated pipe. The corrugated pipe comprises a hollow inner wall, a corrugated outer wall and a bonding layer. The bonding layer is arranged between the inner wall and the corrugated outer wall and is used for tightly attaching the inner wall to the corrugated outer wall. The enhanced composite polyethylene polypropylene corrugated pipe has following beneficial effects: the inner wall and the outer wall are prevented from being separated so that strength of the corrugated pipe is improved; and by changing the position of a sealing ring of the corrugated pipe, production cost and a pipe material and production difficulty are reduced.
Description
Technical field
The utility model belongs to plastic pipe technical field, relates to a kind of bellows, relates in particular to a kind of composite polyethylene polypropylene bellows that strengthens.
Background technique
Buried pipeline underground owing to being deeply buried in (for draining, blowdown, ventilation etc.), needs larger bearing capacity, and bellows is a kind of buried plastic pipe that is widely used in.
Existing bellows generally includes inwall and the corrugated outer wall of hollow, together with inwall passes through high temperature adhesives with outer wall.Owing to being the mode of high temperature adhesives, in the using process of bellows, inwall easily separates with outer wall, affects the use of bellows.
In addition, refer to Fig. 1, the structural representation that Fig. 1 is existing bellows.Existing bellows comprises bellows main body 1, and bellows main body 1 comprises some corrugated unit.Between two corrugated unit (low order end in Fig. 1) of bellows main body 1 one end, be provided with seal ring 4 ', the other end is provided with the second end 3; When use, bellows arranges the sealing that cooperatively interacts of one end of seal ring 4 ' and the second end 3 of adjacent corrugations pipe.
As shown in Figure 1, existing seal ring 4 ' is arranged between two corrugated unit, because the gap between two corrugated unit is conventionally larger, needs a large amount of consumptive materials, thereby causes cost waste; In addition, the gap between two corrugated unit is irregular, also for the manufacture of corresponding seal ring brings certain difficulty.
In view of this, nowadays in the urgent need to designing a kind of new bellows structure, to overcome the above-mentioned defect of existing bellows.
Model utility content
Technical problem to be solved in the utility model is: a kind of composite polyethylene polypropylene bellows that strengthens is provided, can avoids inwall and outer wall layering, improve the intensity of bellows.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of composite polyethylene polypropylene bellows that strengthens, described bellows comprises: the inwall of hollow, corrugated outer wall, bonding layer; Described bonding layer is arranged between inwall and corrugated outer wall, and inwall and corrugated outer wall are fitted tightly.
As a kind of preferred version of the present utility model, described bellows comprises bellows main body, and bellows main body two ends are respectively equipped with first end, the second end; The first end of bellows is connected with the second end of adjacent corrugations pipe; Described bellows main body comprises some corrugated unit; Described first end comprises one or more corrugated unit, in this corrugated unit, one or more seal grooves is set, in order to seal ring to be set, and the second end sealing by seal ring with the bellows that is connected.
As a kind of preferred version of the present utility model, described seal groove is arranged on the centre of the corrugated unit of first end.
As a kind of preferred version of the present utility model, between two adjacent corrugated unit of described corrugated outer wall, be provided with at least two stiffening ribs.
The beneficial effects of the utility model are: the enhancing composite polyethylene polypropylene bellows the utility model proposes, can avoid inwall and outer wall layering, and improve the intensity of bellows.In addition, the utility model bellows, by changing the position of seal ring, can effectively reduce manufacture cost and the manufacture difficulty of tubing.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing sealed type bellows.
Fig. 2 is the sectional drawing of the utility model bellows.
Fig. 3 is the structural representation of the utility model bellows.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 2, the utility model has disclosed a kind of enhancing composite polyethylene polypropylene bellows, and described bellows comprises: the inwall 10 of hollow, corrugated outer wall 30, bonding layer 20; Described bonding layer 20 is arranged between inwall 10 and corrugated outer wall 30, and inwall 10 and corrugated outer wall 30 are fitted tightly.The two sides of bonding layer 20 is equipped with tackiness agent.
Refer to Fig. 3, the utility model bellows comprises bellows main body 1, and bellows main body 1 two ends arrange respectively first end 2, the second end 3(first end 2, the second end 3 and can be counted as a part for bellows main body 1); The first end 2 of bellows is connected with the second end 3 of adjacent corrugations pipe.
Described bellows main body 1 comprises some corrugated unit 11; Described first end 2 is a corrugated unit; In this corrugated unit, a seal groove is set, seal ring 4 is set in seal groove, seal with the second end 3 of the bellows that is connected by seal ring 4.In the present embodiment, described seal groove 4 is arranged on the centre of corrugated unit.
Because fluting on first end 2 arranges seal ring, can, from the size of main control seal ring, reduce the diameter of seal ring, thereby save the energy.Described the second end 3 is roughly the cylindrical of hollow, and the external diameter of the corresponding seal ring 4 of the internal diameter of the second end 3 makes the sealing that cooperatively interacts of the second end 3 and seal ring 4.
In the present embodiment, described bellows comprises inwall and the corrugated outer wall of hollow; Between two adjacent corrugated unit of described corrugated outer wall, be provided with at least two stiffening ribs; Described stiffening rib is hollow structure.
In sum, the enhancing composite polyethylene polypropylene bellows the utility model proposes, can avoid inwall and outer wall layering, improves the intensity of bellows.In addition, the utility model bellows, by changing the position of seal ring, can effectively reduce manufacture cost and the manufacture difficulty of tubing.
Here description of the present utility model and application is illustrative, not wants scope of the present utility model to limit in the above-described embodiments.Here disclosed embodiment's distortion and change is possible, and for those those of ordinary skill in the art, the various parts of embodiment's replacement and equivalence are known.Those skilled in the art are noted that in the situation that not departing from spirit of the present utility model or substantive characteristics, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.In the situation that not departing from the utility model scope and spirit, can carry out other distortion and change to disclosed embodiment here.
Claims (3)
1. strengthen a composite polyethylene polypropylene bellows, it is characterized in that, described bellows comprises: the inwall of hollow, corrugated outer wall, bonding layer; Described bonding layer is arranged between inwall and corrugated outer wall, and inwall and corrugated outer wall are fitted tightly;
Described bellows comprises bellows main body, and bellows main body two ends are respectively equipped with first end, the second end; The first end of bellows is connected with the second end of adjacent corrugations pipe;
Described bellows main body comprises some corrugated unit;
Described first end comprises one or more corrugated unit, in this corrugated unit, one or more seal grooves is set, in order to seal ring to be set, and the second end sealing by seal ring with the bellows that is connected.
2. enhancing composite polyethylene polypropylene bellows according to claim 1, is characterized in that:
Described seal groove is arranged on the centre of the corrugated unit of first end.
3. enhancing composite polyethylene polypropylene bellows according to claim 2, is characterized in that:
Between two adjacent corrugated unit of described corrugated outer wall, be provided with at least two stiffening ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320504873.7U CN203604826U (en) | 2013-08-16 | 2013-08-16 | Enhanced composite polyethylene polypropylene corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320504873.7U CN203604826U (en) | 2013-08-16 | 2013-08-16 | Enhanced composite polyethylene polypropylene corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604826U true CN203604826U (en) | 2014-05-21 |
Family
ID=50717500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320504873.7U Expired - Lifetime CN203604826U (en) | 2013-08-16 | 2013-08-16 | Enhanced composite polyethylene polypropylene corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221857A (en) * | 2015-09-18 | 2016-01-06 | 苏州好洁清洁器具有限公司 | A kind of bellows |
-
2013
- 2013-08-16 CN CN201320504873.7U patent/CN203604826U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221857A (en) * | 2015-09-18 | 2016-01-06 | 苏州好洁清洁器具有限公司 | A kind of bellows |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |