Compression-resistant and wear-resistant HDPE double-wall corrugated pipe
By incorporating pressure-resistant and wear-resistant textured patterns and internal and external reinforcing layers on the outside of HDPE double-wall corrugated pipes, the problem of poor pressure resistance and wear resistance of HDPE double-wall corrugated pipes is solved, resulting in a significant performance improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JINMIN PIPES
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-19
AI Technical Summary
Existing HDPE double-wall corrugated pipes are prone to deformation due to external forces during use, have poor pressure resistance and wear resistance, and thus affect their service life.
A pressure-resistant and wear-resistant HDPE double-wall corrugated pipe is designed by uniformly raising pressure-resistant and wear-resistant textures on the corrugated section outside the pipe body, and by covering the outside of the pipe body with a wear-resistant reinforcing layer and setting an inner reinforcing layer inside the pipe body to enhance its pressure resistance and wear resistance.
It significantly improves the pressure resistance and wear resistance of HDPE double-wall corrugated pipes, extending their service life.
Smart Images

Figure CN224261108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated pipe technology, and in particular to a pressure-resistant and wear-resistant HDPE double-wall corrugated pipe. Background Technology
[0002] HDPE double-wall corrugated pipe, or PE corrugated pipe for short, was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has evolved from a single product to a complete product series; its production process and application technology are now very mature.
[0003] HDPE is high-density polyethylene, also known as low-pressure polyethylene. It is a highly crystalline, non-polar material with a semi-transparent appearance. PE has excellent resistance to most household and industrial chemicals. HDPE is a highly crystalline, non-polar thermoplastic resin. HDPE double-wall corrugated pipe is a new type of pipe with an annular outer wall and a smooth inner wall.
[0004] DPE double-wall corrugated pipes are mainly used in municipal drainage and sewage pipeline systems; underground drainage and sewage systems in apartments and residential communities; pre-buried pipelines for highways; underground seepage pipe networks for golf courses; and water conservancy projects such as farmland irrigation and drainage.
[0005] However, in the existing technology, HDPE double-wall corrugated pipes are prone to deformation due to external forces during use, and have poor pressure resistance and wear resistance, which affects their service life. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model designs a pressure-resistant and wear-resistant HDPE double-wall corrugated pipe.
[0007] The present invention adopts the following technical solution:
[0008] A pressure-resistant and wear-resistant HDPE double-wall corrugated pipe includes an HDPE double-wall corrugated pipe body, on which multiple pressure-resistant and wear-resistant grooves are evenly raised along the circumference of the outer corrugated section. This invention significantly enhances the pressure-resistant and wear-resistant performance of the HDPE double-wall corrugated pipe through the design of the pressure-resistant and wear-resistant grooves.
[0009] Preferably, the HDPE double-wall corrugated pipe body is integrally injection molded with multiple pressure-resistant and wear-resistant textures. This facilitates large-scale production and processing of the product.
[0010] Preferably, the HDPE double-wall corrugated pipe is externally coated with a wear-resistant reinforcing layer, further enhancing the product's wear resistance.
[0011] Preferably, the wear-resistant reinforcing layer is a wear-resistant silicone layer. Wear-resistant silicone layers have good wear resistance.
[0012] Preferably, the HDPE double-wall corrugated pipe has an inner reinforcing layer inside. The inner reinforcing layer further enhances the product's compressive strength.
[0013] Preferably, the inner reinforcing layer is a hard rubber layer. The hard rubber layer not only enhances the product's compressive strength but also provides some corrosion resistance.
[0014] Preferably, the inner reinforcing layer has raised strips evenly distributed around its outer circumference, and corresponding grooves are provided inside the HDPE double-wall corrugated pipe, with the raised strips and grooves engaging with each other. This facilitates the assembly of the inner reinforcing layer into the HDPE double-wall corrugated pipe after production.
[0015] Preferably, the compressive and wear-resistant texture is an oblique bar pattern, with the oblique bar pattern tilted at a 45-degree angle to the horizontal direction. The oblique bar pattern enhances the compressive strength of the product at various angles.
[0016] The beneficial effects of this utility model are: (1) This utility model can greatly enhance the pressure resistance and wear resistance of HDPE double wall corrugated pipe by designing pressure-resistant and wear-resistant textures that are uniformly raised along the circumference on the corrugated section of the outer wall of the HDPE double wall corrugated pipe; (2) An inner reinforcing layer is provided inside the HDPE double wall corrugated pipe, which further enhances the pressure resistance of the product; (3) A wear-resistant reinforcing layer is wrapped around the outer wall of the HDPE double wall corrugated pipe, which further enhances the wear resistance of the product. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 yes Figure 1 A side view;
[0019] Figure 3 This is a schematic diagram of one type of compressive and wear-resistant texture in this utility model;
[0020] In the diagram: 1. HDPE double-wall corrugated pipe body, 2. Pressure-resistant and wear-resistant texture, 3. Wear-resistant silicone layer, 4. Inner reinforcing layer, 5. Raised strip. Detailed Implementation
[0021] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0022] Example: Figures 1-3As shown, a pressure-resistant and wear-resistant HDPE double-wall corrugated pipe includes an HDPE double-wall corrugated pipe body 1, on which multiple pressure-resistant and wear-resistant grooves 2 are uniformly raised along the circumference of the outer corrugated section. This invention significantly enhances the pressure resistance and wear resistance of the HDPE double-wall corrugated pipe through the design of the pressure-resistant and wear-resistant grooves.
[0023] HDPE double-wall corrugated pipe body is integrally injection molded with multiple pressure-resistant and wear-resistant textures. This facilitates large-scale production and processing.
[0024] HDPE double-wall corrugated pipes are externally coated with a wear-resistant reinforcing layer. This further enhances the product's wear resistance. The wear-resistant reinforcing layer is a wear-resistant silicone layer 3. The wear-resistant silicone layer has excellent wear resistance.
[0025] The HDPE double-wall corrugated pipe has an inner reinforcing layer 4 inside. The inner reinforcing layer further enhances the product's compressive strength.
[0026] The inner reinforcing layer is a hard rubber layer. This hard rubber layer not only enhances the product's compressive strength but also provides some corrosion resistance.
[0027] The inner reinforcing layer has evenly distributed raised strips 5 along its outer circumference, and corresponding grooves are provided inside the HDPE double-wall corrugated pipe. The raised strips and grooves engage with each other, facilitating the assembly of the inner reinforcing layer into the HDPE double-wall corrugated pipe after production.
[0028] The compressive and abrasion-resistant texture consists of diagonal stripes, with an angle of 45 degrees to the horizontal. These diagonal stripes enhance the product's compressive strength at various angles.
[0029] This invention significantly enhances the pressure resistance and wear resistance of HDPE double-wall corrugated pipes by designing uniformly raised, circumferentially raised anti-compression and wear-resistant textures on the outer corrugated section of the pipe. An inner reinforcing layer is provided inside the pipe to further enhance its pressure resistance. An outer wear-resistant reinforcing layer further enhances its wear resistance.
[0030] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.
Claims
1. A pressure-resistant and wear-resistant HDPE double-wall corrugated pipe, comprising an HDPE double-wall corrugated pipe body, characterized in that, The HDPE double-wall corrugated pipe has multiple pressure-resistant and wear-resistant grooves evenly raised along the circumference on the outer corrugated section.
2. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 1, characterized in that, The HDPE double-wall corrugated pipe body is integrally injection molded with multiple pressure-resistant and wear-resistant textures.
3. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 1, characterized in that, The HDPE double-wall corrugated pipe is covered with a wear-resistant reinforcing layer.
4. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 3, characterized in that, The wear-resistant reinforcing layer is a wear-resistant silicone layer.
5. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 1, characterized in that, The HDPE double-wall corrugated pipe has an inner reinforcing layer inside.
6. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 5, characterized in that, The inner reinforcing layer is a hard rubber layer.
7. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 5, characterized in that, The inner reinforcing layer has raised strips evenly arranged around its outer circumference, and the HDPE double-wall corrugated pipe body has corresponding grooves, with the raised strips and grooves engaging with each other.
8. The pressure-resistant and wear-resistant HDPE double-wall corrugated pipe according to claim 1, characterized in that, The pressure-resistant and wear-resistant texture is a diagonal stripe pattern, with an inclination angle of 45 degrees to the horizontal direction.