Composite drainage net
Patent Information
- Application Number
- CN202521760975.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-08-19
AI Technical Summary
现在传统排水网产品都是挤出三层网,这种产品是通过旋转机头直接挤出成型的,且其结构上下两面都是整条线条结构,存在一个方向通水有阻碍,排水效率低的问题,且挤出的网强度也较低
[0012] This utility model discloses a composite drainage net. Its advantages, compared to existing technologies, are enhanced drainage capacity and network structure stability through the use of support columns and a multi-directional tensile support net structure. The support net, composed of different line combinations, can form various mesh structures to enhance drainage performance and structural stability. The perpendicular arrangement of the support columns and the support net ensures the stability of the net structure. The flat net is used for lamination with non-woven fabric, increasing the lamination area, and the support columns provide a supporting force, preventing the non-woven fabric from being penetrated by the support columns under pressure, thereby improving the drainage rate.
Smart Images

Figure CN224728943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a composite drainage net, which is mainly used in conjunction with non-woven fabric for civil engineering, environmental engineering and other fields, and belongs to the field of drainage and seepage protection technology. Background Technology
[0002] Currently, three-dimensional drainage nets (also known as three-dimensional geotextile drainage boards, tunnel drainage boards, or drainage boards) on the market are composed of three-dimensional plastic nets. They can replace traditional sand and gravel layers and are mainly used for drainage in landfills, roadbeds, and tunnel walls. Traditional drainage nets are extruded three-layer nets. These products are formed directly by a rotating die head, and their structure consists of continuous lines on both the top and bottom surfaces. This results in obstruction of water flow in one direction, leading to low drainage efficiency, and the extruded nets also have relatively low strength. Utility Model Content
[0003] To address the technical problems existing in the prior art, this utility model provides a composite drainage net, which aims to improve drainage efficiency, enhance structural strength, and increase material utilization efficiency. Specifically, by introducing a multi-directional tensile structure and diverse mesh designs, the performance of the drainage net is significantly improved. This utility model not only improves drainage efficiency but also strengthens the structural strength of the material through a tensile process, enabling the product to exhibit excellent impact resistance and durability while ensuring lightweight and high load-bearing capacity. It can meet the needs of various specific application scenarios, thereby broadening the application range of drainage nets in different fields.
[0004] This utility model provides a composite drainage net, specifically including a support net, a flat net, and support columns. The support columns are arranged perpendicularly to the support net, and the top of the support columns is connected to the intersection of the support net. The bottom of the support columns and the flat net are connected together by a thermal composite process.
[0005] Furthermore, the support column is shaped like a frustum.
[0006] Furthermore, the diameter of the top end of the support column is between 1 and 15 mm.
[0007] Furthermore, the height from the upper surface of the support net to the bottom end of the support column is between 2 and 20 mm.
[0008] Furthermore, the support mesh includes several horizontal lines and vertical lines, which are divided into several rectangular mesh openings, the length and width of which range from 5 to 80 mm.
[0009] Furthermore, the support mesh includes several horizontal lines, a first oblique line, and a second oblique line. The horizontal lines, the first oblique line, and the second oblique line divide the mesh into several triangular mesh openings. The length and height of the base of each triangular mesh opening range from 5 to 120 mm.
[0010] Furthermore, the support mesh includes several horizontal lines, vertical lines, a first diagonal line, and a second diagonal line. The horizontal and vertical lines divide the mesh into several rectangular holes, and the vertical lines, the first diagonal line, and the second diagonal line together divide the mesh into several star-shaped holes. The length of any rectangular hole in the vertical direction ranges from 5 to 200 mm, and the length of any two adjacent rectangular holes in the horizontal direction ranges from 5 to 200 mm.
[0011] Furthermore, the flat mesh is a square mesh or a diamond mesh, with the side length of the squares or diamonds between 3 and 20 mm.
[0012] This utility model discloses a composite drainage net. Its advantages, compared to existing technologies, are enhanced drainage capacity and network structure stability through the use of support columns and a multi-directional tensile support net structure. The support net, composed of different line combinations, can form various mesh structures to enhance drainage performance and structural stability. The perpendicular arrangement of the support columns and the support net ensures the stability of the net structure. The flat net is used for lamination with non-woven fabric, increasing the lamination area, and the support columns provide a supporting force, preventing the non-woven fabric from being penetrated by the support columns under pressure, thereby improving the drainage rate. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the support net and support column structure in Embodiment 1 of this utility model;
[0015] Figure 2 This is a schematic diagram of the support net and support column structure in Embodiment 2 of this utility model;
[0016] Figure 3 This is a schematic diagram of the support net and support column structure in Embodiment 4 of this utility model;
[0017] Figure 4 This is a schematic diagram of the support net, support column, and horizontal net structure in Embodiment 2 of this utility model;
[0018] Figure 5 This is a schematic diagram of the support net, support column, and flat net structure in Embodiment 3 of this utility model.
[0019] The diagram shows: 1. Support netting; 2. Support column; 3. Top; 4. Horizontal line; 5. Vertical line; 6. First diagonal line; 7. Second diagonal line; 8. Horizontal netting. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] To further understand the utility model content of this utility model, the technical solution will be further described below in conjunction with specific embodiments.
[0022] Example 1: As Figure 1 As shown, this embodiment provides a composite drainage net, specifically including a support net 1, a flat net 8, and a support column 2. The support column 2 is arranged perpendicularly to the support net 1, and the top end 3 of the support column 2 is connected to the intersection of the support net 1. The bottom end of the support column 2 and the flat net 8 are connected together by a thermal composite process.
[0023] In one specific embodiment of this invention, the support column 2 is shaped like a frustum to increase its support stability. The top end 3 of the support column 2 has a diameter of 3mm, and the cross-sectional dimension of the top end 3 is larger than that of the bottom end. In this embodiment, the bottom end diameter of the support column 2 is 1mm. The height from the upper surface of the support net 1 to the bottom end of the support column 2 is 2mm.
[0024] In one specific implementation of this embodiment, the support mesh 1 includes several horizontal lines 4 and vertical lines 5. The horizontal lines 4 and vertical lines 5 divide the mesh into several rectangular openings. The length and width of the rectangular openings range from 5 to 80 mm. The larger the diameter of the rectangular openings, the better the drainage effect.
[0025] Example 2: Figure 2 and Figure 4As shown, unlike Embodiment 1, the support mesh 1 in this embodiment includes several horizontal lines 4, a first diagonal line 6, and a second diagonal line 7. The horizontal lines 4, the first diagonal line 6, and the second diagonal line 7 divide the mesh into several triangular mesh openings. The base length of each triangular mesh opening ranges from 5 to 120 mm, and the vertical height of the base of each triangular mesh opening also ranges from 5 to 120 mm. The diameter of the top end 3 of the support column 2 is 5 mm, and the cross-sectional dimension of the top end 3 of the support column 2 is larger than that of the bottom end. The height from the upper surface of the support mesh 1 to the bottom end of the support column 2 is 10 mm.
[0026] As a specific implementation of this embodiment, the flat mesh 8 is a square grid with a side length between 3-20mm. In this specific embodiment, the side length of the square is 10mm.
[0027] Example 3: As Figure 2 and Figure 5 As shown, unlike Example 2, the flat mesh 8 in this example is a rhombus mesh with a side length between 3-20mm. Specifically, the side length of the rhombus in this example is 12mm.
[0028] Example 4: Figure 3 As shown, unlike embodiments 1-3, the support mesh 1 includes several horizontal lines 4, vertical lines 5, a first diagonal line 6, and a second diagonal line 7. The horizontal lines 4 and vertical lines 5 divide the mesh into several rectangular openings, and the vertical lines 5, the first diagonal line 6, and the second diagonal line 7 together divide the mesh into several star-shaped openings. The length of any rectangular opening in the vertical direction of the vertical line 5 ranges from 5 to 200 mm, and the length of any two adjacent rectangular openings in the horizontal direction of the horizontal line 4 also ranges from 5 to 200 mm. The diameter of the top end 3 of the support column 2 is 15 mm, and the cross-sectional dimension of the top end 3 of the support column 2 is larger than that of the bottom end. The height from the upper surface of the support mesh 1 to the bottom end of the support column 2 is 20 mm.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A composite drainage net, characterized in that, It includes a support net (1), a flat net (8), and a support column (2). The support column (2) is set perpendicular to the support net (1), and the top end (3) of the support column (2) is connected to the intersection of the support net (1). The bottom end of the support column (2) is connected to the flat net (8) by a thermal composite process.
2. A composite drain net according to claim 1, wherein The support column (2) is shaped like a frustum. The diameter of the top end (3) of the support column (2) is between 1 and 15 mm. The height from the upper surface of the support net (1) to the bottom end of the support column (2) is between 2 and 20 mm.
3. The composite drain net according to claim 1, wherein, The support mesh (1) includes several horizontal lines (4) and vertical lines (5), and the horizontal lines (4) and vertical lines (5) are divided into several rectangular mesh openings.
4. A composite drainage net according to claim 3, characterized in that, The length and width of the rectangular mesh range from 5 to 80 mm.
5. The composite drain screen of claim 1, wherein, The support mesh (1) includes several horizontal lines (4), a first oblique line (6) and a second oblique line (7), which are divided into several triangular mesh openings.
6. A composite drain screen according to claim 5, wherein, The length and height of the bottom edge of each triangular mesh range from 5 to 120 mm.
7. The composite drain net according to claim 1, wherein The support mesh (1) includes several horizontal lines (4), vertical lines (5), first diagonal lines (6) and second diagonal lines (7). The horizontal lines (4) and vertical lines (5) are divided into several rectangular meshes, and the vertical lines (5), first diagonal lines (6) and second diagonal lines (7) are divided into several cross-shaped meshes.
8. A composite drain screen according to claim 7, wherein, The length of any rectangular mesh in the vertical direction (5) ranges from 5 to 200 mm, and the length of any two adjacent rectangular meshes in the horizontal direction (4) ranges from 5 to 200 mm.
9. The composite drain net according to claim 1, wherein, The flat grid (8) is a square grid, with the side length of the squares ranging from 3 to 20 mm.
10. The composite drain screen of claim 1, wherein, The flat mesh (8) is a rhombus mesh, and the side length of the rhombus is between 3-20mm.