DWBFRP double wave plastic structure wall pipe
By designing double-peak and single-peak structures on the corrugated pipe, combined with X-shaped cross stiffeners and asymmetrical slope, the problem of easy deformation or breakage of the corrugated pipe under impact is solved, achieving high impact resistance and anti-settlement effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 重庆索泰管道股份有限公司
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-23
AI Technical Summary
Existing corrugated pipes are prone to deformation or rupture under external impact, leading to pipe failure and posing a safety hazard.
The pipe adopts DWBFRP double-wave ductile wall structure, which sets multiple annular double-wave peaks and single-wave peaks on the pipe body. The double-wave peaks are equipped with X-shaped cross reinforcing ribs to form a mesh support frame, and the single-wave peaks are set with an asymmetrical slope to disperse the impact force. It is combined with sealing structure and flange fixation.
It significantly improves the pipeline's impact resistance and ring stiffness, prevents inner wall rupture, and enhances its sealing performance and resistance to soil settlement.
Smart Images

Figure CN224397340U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of corrugated pipe technology, specifically, it relates to a DWBFRP double-corrugated duct wall structure. Background Technology
[0002] Most existing corrugated pipes adopt a single-peak form, with the corrugated cross-section being a "U"-shaped groove. This improves the rigidity of the corrugated pipe to some extent, but the improvement in rigidity is limited. When subjected to external impact, the corrugated outer shell is prone to deformation or rupture, leading to pipe failure and posing safety hazards to the project. Utility Model Content
[0003] To solve the above problems, the present invention adopts the following technical solution:
[0004] A DWBFRP (Double Wave Plastic Reinforced Plastic) structural wall pipe includes multiple pipes connected end-to-end, each pipe comprising:
[0005] Pipeline body;
[0006] Multiple annular double peaks are evenly distributed along the axial direction of the main body of the pipe. The double peaks are hollow and X-shaped reinforcing ribs are provided inside the double peaks to form a mesh support frame.
[0007] Multiple annular single-wave peaks are evenly distributed along the axial direction of the main body of the pipe and are arranged alternately with multiple double-wave peaks. The single-wave peaks are hollow structures.
[0008] Furthermore, the cross-section of the single wave peak is an asymmetrical trapezoid, with a gentle slope on one side and a steep slope on the other side.
[0009] Furthermore, the height of the double peaks is greater than the height of the single peak.
[0010] Furthermore, a sealing groove is provided at the first end of the pipe body, and a sealing ring is provided at the second end of the pipe body, with the sealing groove of the pipe body and the adjacent sealing ring being configured to cooperate.
[0011] Furthermore, both the first end and the second end of the pipe body are provided with flanges. The first end of the pipe body is inserted into the second end of the adjacent pipe body, and the flanges are fixed by bolts.
[0012] The beneficial effects of this utility model are:
[0013] This invention features X-shaped cross reinforcing ribs on the double wave peaks to form a mesh support frame. The X-shaped ribs are welded to the inner wall of the double wave peaks to form a triangular stabilizing unit, thereby improving the bending resistance.
[0014] This invention features a single-wave peak with a gentle slope on one side and a steep slope on the other. The gentle slope disperses the impact force, reduces local stress concentration, and the steep slope resists pressure, thus improving the soil settlement resistance. Attached Figure Description
[0015] Figure 1 This is a top view schematic diagram of a DWBFRP double-wave ductile wall structure according to the present invention;
[0016] Figure 2 This is a schematic diagram of the internal structure of a DWBFRP double-wave ductile wall tube according to the present invention;
[0017] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle.
[0018] In the diagram: 1. Pipe body; 2. Double crest; 3. Single crest; 4. Reinforcing rib; 5. Sealing groove; 6. Sealing ring; 7. Flange. Detailed Implementation
[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] Example 1
[0021] refer to Figures 1 to 3 A DWBFRP double-wave ductile wall structure includes multiple pipes connected end-to-end, each pipe comprising:
[0022] Pipeline body 1;
[0023] Multiple annular double peaks 2 are evenly distributed along the axial direction of the main body of the pipe 1. The double peaks 2 are hollow structures, and X-shaped reinforcing ribs are set inside the double peaks 2 to form a mesh support frame.
[0024] Multiple annular single-wave peaks 3 are evenly distributed along the axial direction of the main body of the pipe 1 and are arranged alternately with multiple double-wave peaks 2. The single-wave peaks 3 are hollow structures.
[0025] This invention greatly enhances the load-bearing capacity of the pipe body, improves its impact resistance and ring stiffness, and prevents water seepage caused by foreign stones breaking through the inner wall.
[0026] In this embodiment, the cross-section of the single wave crest 3 is an asymmetrical trapezoid, with a gentle slope on one side and a steep slope on the other side.
[0027] This invention features X-shaped cross reinforcing ribs 4 on the double wave peaks 2 to form a mesh support frame. The X-shaped ribs are welded to the inner wall of the double wave peaks 2 to form a triangular stabilizing unit, thereby improving the bending resistance.
[0028] This utility model, the single-wave peak 3, has a gentle slope on one side and a steep slope on the other. The gentle slope disperses the impact force, reduces local stress concentration, and the steep slope resists pressure, thus improving the ability to resist soil subsidence.
[0029] In this embodiment, the height of the double peak 2 is greater than the height of the single peak 3.
[0030] In this embodiment, a sealing groove 5 is provided at the first end of the pipe body 1, and a sealing ring 6 is provided at the second end of the pipe body 1. The sealing grooves 5 of two adjacent pipe bodies 1 are matched with their adjacent sealing rings 6.
[0031] In this embodiment, both the first end and the second end of the pipe body 1 are provided with flanges 7. The first end of the pipe body 1 is inserted into the second end of the adjacent pipe body 1, and the flanges 7 are fixed by bolts.
[0032] In practice, an elastic gasket is installed on the mating surface of flange 7, and the sealing groove 5 cooperates with the sealing ring 6 to achieve primary sealing. The elastic gasket on the mating surface of flange 7 serves as secondary sealing, resulting in strong sealing capability.
[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model are included within the protection scope of this utility model.
Claims
1. A DWBFRP double-wave ductile plastic structure wall pipe, comprising multiple pipes connected end-to-end, characterized in that, Each of the aforementioned pipes includes: Pipeline body; Multiple annular double peaks are evenly distributed along the axial direction of the main body of the pipe. The double peaks are hollow and X-shaped reinforcing ribs are provided inside the double peaks to form a mesh support frame. Multiple annular single-wave peaks are evenly distributed along the axial direction of the main body of the pipe and are arranged alternately with multiple double-wave peaks. The single-wave peaks are hollow structures.
2. The DWBFRP double-wave ductile wall structure according to claim 1, characterized in that, The cross-section of the single wave crest is an asymmetrical trapezoid, with a gentle slope on one side and a steep slope on the other side.
3. The DWBFRP double-wave ductile wall structure according to claim 1, characterized in that, The height of the double peak is greater than the height of the single peak.
4. The DWBFRP double-wave ductile wall structure according to claim 1, characterized in that, A sealing groove is provided at the first end of the pipe body, and a sealing ring is provided at the second end of the pipe body. The sealing groove of the pipe body is configured to cooperate with the adjacent sealing ring.
5. A DWBFRP double-wave ductile wall structure according to claim 4, characterized in that, Both the first end and the second end of the pipe body are provided with flanges. The first end of the pipe body is inserted into the second end of the adjacent pipe body, and the flanges are fixed by bolts.