CN220957196U - Enhancement mode polypropylene bellows - Google Patents
Enhancement mode polypropylene bellows Download PDFInfo
- Publication number
- CN220957196U CN220957196U CN202322780287.1U CN202322780287U CN220957196U CN 220957196 U CN220957196 U CN 220957196U CN 202322780287 U CN202322780287 U CN 202322780287U CN 220957196 U CN220957196 U CN 220957196U
- Authority
- CN
- China
- Prior art keywords
- steel belt
- polypropylene
- ribs
- bellows
- plastic layer
- 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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Links
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 31
- -1 polypropylene Polymers 0.000 title claims abstract description 31
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 10
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to an enhanced polypropylene corrugated pipe, which comprises a polypropylene inner pipe and a molding steel belt, wherein the molding steel belt is equidistantly wound on the outer surface of the polypropylene inner pipe, the outer surface of the molding steel belt is coated with a plastic layer, the surface of the molding steel belt is provided with a convex shape protruding outwards, and the convex shape penetrates through two ends of the molding steel belt. According to the reinforced polypropylene corrugated pipe, the structure of the existing corrugated pipe product is optimized, the convex shape is added to the surface of the formed steel belt, which is equivalent to adding the reinforcing ribs to the formed steel belt, so that the rigidity of the spiral corrugated pipe is enhanced, and the plastic layer wrapping the outer surface of the formed steel belt is also provided with the ribs, so that the strength of the plastic layer is also enhanced, and the ring rigidity of the corrugated pipe is further enhanced.
Description
Technical Field
The utility model relates to the technical field of pipes, in particular to an enhanced polypropylene corrugated pipe.
Background
In the field of buried drainage and sewage pipelines for municipal construction, the application rate of common corrugated pipes and winding pipes is reduced year by year due to poor ring stiffness. In order to improve the ring stiffness of the pipe, some manufacturers develop steel strip reinforced polypropylene spiral corrugated pipes, and the product is increasingly adopted at present due to the advantages of high ring stiffness, convenient connection, low cost and the like. Through practical application in recent years, the fact that the existing formed steel belt lacks a rib structure is found, and the ring stiffness of the formed steel belt cannot achieve the optimal effect.
Disclosure of utility model
In order to solve the technical problems in the prior art, the utility model provides the reinforced polypropylene corrugated pipe, and the corrugated pipe structure is optimized, so that the ring stiffness of the corrugated pipe is further enhanced.
In order to achieve the above purpose, the technical solution of the present utility model is as follows:
the utility model provides an enhancement mode polypropylene bellows, includes polypropylene inner tube and shaping steel band, and shaping steel band equidistance twines in the surface of polypropylene inner tube, and the surface cladding of shaping steel band has the plastic layer, and the surface of shaping steel band is provided with the convex part of outwards protruding, and convex part runs through the both ends of shaping steel band.
As the preferable technical scheme, the cross section of the molding steel belt is U-shaped, and the U-shaped opening of the molding steel belt faces the pipe body of the polypropylene inner pipe.
As a preferable technical scheme, the convex parts are arranged on the surface of the formed steel belt at equal intervals.
Preferably, the convex portion has a circular arc-shaped cross section.
As a preferable technical scheme, ribs are arranged in the plastic layer, and the ribs are positioned outside the convex part.
As a preferred solution, the shape of the ribs matches the convex portion.
As a preferable technical scheme, the ribs are formed by bending steel belts.
Compared with the prior art, the utility model has the beneficial effects that:
According to the reinforced polypropylene corrugated pipe, the structure of the existing corrugated pipe product is optimized, the convex shape is added to the surface of the formed steel belt, which is equivalent to adding the reinforcing ribs to the formed steel belt, so that the rigidity of the spiral corrugated pipe is enhanced, and the plastic layer wrapping the outer surface of the formed steel belt is also provided with the ribs, so that the strength of the plastic layer is also enhanced, and the ring rigidity of the corrugated pipe is further enhanced.
Drawings
FIG. 1 is an external schematic view of an enhanced polypropylene bellows of the present utility model;
Fig. 2 is a schematic structural view of a male portion in an enhanced polypropylene bellows of the present utility model.
In the figure: 1. a polypropylene inner tube; 2. forming a steel belt; 21. a male portion; 3. a plastic layer; 31. rib.
Detailed Description
The technical scheme of the utility model is further described below with reference to the specific embodiments:
As shown in fig. 1, the reinforced polypropylene corrugated pipe comprises a polypropylene inner pipe 1 and a forming steel belt 2, wherein the forming steel belt 2 is wound on the outer surface of the polypropylene inner pipe 1 at equal intervals, the cross section of the forming steel belt 2 is U-shaped, and the U-shaped opening of the forming steel belt 2 faces to the pipe body of the polypropylene inner pipe 1. The outer surface of the molding steel belt 2 is coated with a plastic layer 3, the surface of the molding steel belt 2 is provided with convex parts 21 protruding outwards, and the convex parts 21 penetrate through two ends of the molding steel belt 2. As shown in fig. 2, the cross-sectional shape of the convex portion 21 is circular arc. The convex portions 21 are provided at equal intervals on the surface of the shaped steel strip 2. In the use of the present utility model, adding convexity to the surface of the shaped steel strip 2 corresponds to adding reinforcing ribs to the shaped steel strip 2, so that the rigidity of the helical bellows is enhanced.
As shown in fig. 2, ribs 31 are provided in the plastic layer 3, the ribs 31 being located outside the male portion 21. The ribs 31 are formed by bending steel strips. The ribs 31 are shaped to match the male portion 21. The provision of the ribs 31 increases the strength of the plastic layer 3.
The present embodiment is further illustrative of the present invention and is not to be construed as limiting the invention, and those skilled in the art can make no inventive modifications to the present embodiment as required after reading the present specification, but only as long as they are within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides an enhancement mode polypropylene bellows, its characterized in that includes polypropylene inner tube and shaping steel band, shaping steel band equidistance winding is at the surface of polypropylene inner tube, the surface cladding of shaping steel band has the plastic layer, the surface of shaping steel band is provided with the convex part of outwards protruding, and convex part runs through the both ends of shaping steel band.
2. The reinforced polypropylene bellows of claim 1 wherein the profiled strip is U-shaped in cross section with the U-shaped opening of the profiled strip facing the tubular body of the polypropylene inner tube.
3. The reinforced polypropylene bellows of claim 1 wherein the male portions are equally spaced on the surface of the profiled strip.
4. The reinforced polypropylene bellows of claim 1 wherein the convex portion has a circular arc cross-sectional shape.
5. A reinforced polypropylene bellows according to claim 1, wherein ribs are provided in the plastic layer, the ribs being located outside the male part.
6. The reinforced polypropylene bellows of claim 5 wherein the ribs are shaped to match the male portion.
7. The reinforced polypropylene bellows of claim 5 wherein the ribs are formed by bending steel strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322780287.1U CN220957196U (en) | 2023-10-17 | 2023-10-17 | Enhancement mode polypropylene bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322780287.1U CN220957196U (en) | 2023-10-17 | 2023-10-17 | Enhancement mode polypropylene bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220957196U true CN220957196U (en) | 2024-05-14 |
Family
ID=91017882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322780287.1U Active CN220957196U (en) | 2023-10-17 | 2023-10-17 | Enhancement mode polypropylene bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220957196U (en) |
-
2023
- 2023-10-17 CN CN202322780287.1U patent/CN220957196U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |