Composite waterproof and drainage plate with porous breathable channels

Abstract

The composite waterproof and drainage board comprises a filtering layer, a drainage layer, a reinforcing layer and a supporting layer which are sequentially arranged from top to bottom, the filtering layer comprises upper-layer non-woven fabric, lower-layer non-woven fabric and deformable permeable particles clamped between the upper-layer non-woven fabric and the lower-layer non-woven fabric, the drainage layer is composed of rhombic protrusions arranged in an array mode, and the reinforcing layer is arranged between the upper-layer non-woven fabric and the lower-layer non-woven fabric. X-shaped drainage channels are formed between the adjacent rhombic protrusions, the reinforcing layer comprises longitudinal reinforcing ribs and transverse grid ribs, and the supporting layer comprises a honeycomb-shaped three-dimensional grid structure arranged on the upper layer and a base plate arranged on the lower layer. According to the waterproof and drainage plate, the design of the filtering layer guarantees good water permeability, can adapt to deformation to a certain degree and avoids damage caused by external force, the design of the drainage layer facilitates rapid drainage of water flow, and the design of the reinforcing layer enhances the overall strength of the waterproof and drainage plate, can adapt to certain deformation and avoids damage caused by stress concentration. Due to the design of the supporting layer, good supporting is provided, and the air permeability is further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waterproof and drainage board, more particularly, the utility model relates to a composite waterproof and drainage board with porous and breathable channels. BACKGROUND

[0002] With the continuous development of engineering technology and the increasing complexity of application scenarios, the performance requirements of waterproof and drainage boards are becoming increasingly strict and diversified. On the one hand, in construction engineering, buildings are affected by various natural factors (such as earthquakes, wind, temperature changes, etc.) and human factors (such as construction vibration, vehicle load, etc.), which may cause deformation of the foundation and wall body to a certain extent. Therefore, the waterproof and drainage board must have good flexibility and anti-deformation ability to maintain the integrity of the structure during deformation and avoid breaking or failure due to external forces, thereby ensuring long-term waterproof and drainage effects. On the other hand, in terms of drainage performance, quickly and effectively draining water is the key to preventing building leakage, foundation softening, and road water accumulation. Therefore, higher requirements are placed on the drainage speed and capacity of the waterproof and drainage board, especially in areas with high rainfall or high groundwater levels.

[0003] Traditional waterproof and drainage boards often cannot adapt to a certain degree of deformation while ensuring good water permeability, and are easily damaged under external forces, resulting in a shortened service life and an inability to meet the demand for long-term stable use. In addition, the drainage structure design of existing waterproof and drainage boards is unreasonable, resulting in slow water flow discharge speed, an inability to achieve rapid drainage, an impact on waterproof and drainage effects, and potential water accumulation problems that may adversely affect the building structure or surrounding environment. The present device was invented to address the above problems. SUMMARY

[0004] To overcome the above-mentioned defects of the prior art, the utility model provides a composite waterproof and drainage board with porous and breathable channels to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a composite waterproof and drainage board with porous and breathable channels, comprising a filter layer, a drainage layer, a reinforcing layer, and a support layer arranged in order from top to bottom.

[0006] The filter layer includes an upper non-woven fabric, a lower non-woven fabric, and deformable water-permeable particles sandwiched between the two. The drainage layer is composed of an array of rhombic protrusions, and X-shaped drainage channels are formed between adjacent rhombic protrusions. The reinforcing layer includes longitudinal reinforcing ribs and transverse grid ribs. The support layer includes a three-dimensional grid structure in the form of a honeycomb on the upper layer and a base plate on the lower layer. The edges of the base plate are provided with connecting structures.

[0007] Further, the deformable water-permeable particles are elastic rubber balls with honeycomb micropores on the surface, and the compression and rebound rate is ≥80%.

[0008] Further, the upper non-woven fabric and the lower non-woven fabric are both polyester fiber non-woven fabrics, the thickness is 0.5-1mm, and the gram weight is 100-150g / m².

[0009] Further, the height of the rhombic protrusion is 5-8mm, the side length is 10-15mm, the width of the X-shaped drainage channel is 3-5mm, the depth is 2-3mm, and the interval between adjacent X-shaped drainage channels is 5-10mm.

[0010] Further, the water-permeable hole is circular in shape, the diameter is 2-4mm, the hole interval is 5-10mm, and the edge of the water-permeable hole is provided with a chamfer, and the radius of the chamfer is 0.5-1mm.

[0011] Further, the transverse grid rib is designed in a wave shape, and the longitudinal stretchability is allowed to reach ±15%.

[0012] Further, the vertical water-permeable hole is provided on the three-dimensional grid structure, the diameter of the vertical water-permeable hole is 1-2mm, and the hole interval is 5-10mm.

[0013] Further, the thickness of the substrate is 1 / 2-2 / 3 of the three-dimensional grid structure.

[0014] Further, the bottom of the support layer is uniformly distributed with a plurality of fixing feet, and the bottom of the fixing feet is a conical structure.

[0015] Further, the connecting structure comprises a rectangular protrusion arranged at one side edge of the substrate and a rectangular groove arranged at the other side edge of the substrate, the height of the rectangular protrusion is 5-10mm, the width is 8-12mm, the depth of the rectangular groove is 5-10mm, the width is 8-12mm, and the rectangular protrusion and the rectangular groove are matched.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] The filter layer is composed of the upper non-woven fabric, the lower non-woven fabric and the deformable water-permeable particles arranged therebetween, which not only ensures good water permeability, but also can adapt to a certain degree of deformation, avoids damage due to external force, and prolongs the service life; the drainage layer is composed of the array-arranged rhombic protrusions, X-shaped drainage channels are formed between adjacent rhombic protrusions, which is beneficial to the rapid drainage of water flow, the edge of the water-permeable hole is provided with a chamfer, which can prevent the edge of the water-permeable hole from generating excessive resistance to water flow, and further improve the drainage efficiency; the reinforcing layer comprises the longitudinal reinforcing rib and the transverse grid rib, which not only enhances the overall strength of the waterproof and drainage board, but also can adapt to a certain deformation, avoids damage due to stress concentration, and the three-dimensional grid structure of the support layer not only provides good support, but also further enhances the air permeability. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art based on these drawings.

[0019] Figure 1 The overall structure schematic view provided by the present application is shown in the figure.

[0020] Figure 2 The structure schematic view of the rectangular groove provided by the present application is shown in the figure.

[0021] Figure 3 The explosion view provided by the present application is shown in the figure.

[0022] Figure 4 The overall structure front view provided by the present application is shown in the figure. Figure 3 The enlarged schematic view of the A area is shown in the figure.

[0023] Figure 5 The overall structure front view provided by the present application is shown in the figure.

[0024] Explanation of reference signs:

[0025] 1, filter layer; 11, upper layer of non-woven fabric; 12, lower layer of non-woven fabric; 13, deformable water-permeable particles; 2, drainage layer; 21, rhombic protrusions; 22, X-shaped drainage channels; 23, water-permeable holes; 3, reinforcing layer; 31, longitudinal reinforcing ribs; 32, transverse grid ribs; 4, supporting layer; 41, three-dimensional grid structure; 411, vertical air vents; 42, base plate; 43, connecting structure; 431, rectangular protrusions; 432, rectangular grooves; 44, fixing feet. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described below by specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In order to make those skilled in the art better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0028] Reference is made to the drawings Figures 1-5The composite waterproof and drainage board of the embodiment comprises a filter layer 1, a drainage layer 2, a reinforcing layer 3 and a supporting layer 4 arranged in sequence from top to bottom.

[0029] Referring to the drawings Figure 5 The filter layer 1 comprises an upper non-woven fabric 11, a lower non-woven fabric 12 and deformable water-permeable particles 13 sandwiched between the upper and lower non-woven fabrics. The deformable water-permeable particles 13 are elastic rubber balls with honeycomb micropores on the surface, and the compression and rebound rate of the elastic rubber balls is greater than or equal to 80%. The diameter of the elastic rubber balls is 3-5 mm, the pore size of the honeycomb micropores is 0.1-0.3 mm, and the porosity is 30%-40%. The filter layer 1 can not only ensure good water permeability, but also adapt to a certain degree of deformation, thereby avoiding damage due to external force and prolonging the service life.

[0030] Further, the upper non-woven fabric 11 and the lower non-woven fabric 12 are both made of polyester fiber non-woven fabric, which has good air permeability and water permeability, and is corrosion-resistant and aging-resistant. The thickness of the non-woven fabric is 0.5-1 mm, and the grammage is 100-150 g / m2.

[0031] Referring to the drawings Figure 4 The drainage layer 2 is composed of arrayed rhombic protrusions 21. The rhombic protrusions 21 are made of high-density polyethylene (HDPE) material, which has good corrosion resistance, pressure resistance and weather resistance. The height of the rhombic protrusions 21 is 5-8 mm, the side length is 10-15 mm, the diameter of the water-permeable holes 23 is 2-4 mm, and the hole spacing is 5-10 mm. X-shaped drainage channels 22 are formed between adjacent rhombic protrusions 21. The width of the X-shaped drainage channels 22 is 3-5 mm, the depth is 2-3 mm, and the spacing between adjacent X-shaped drainage channels 22 is 5-10 mm. This structure design is conducive to the rapid drainage of water flow. The water-permeable holes 23 are arranged in the middle of the rhombic protrusions 21. The shape of the water-permeable holes 23 is circular, the diameter is 2-4 mm, and the hole spacing is 5-10 mm. The edges of the water-permeable holes 23 are chamfered, and the radius of the chamfer is 0.5-1 mm. The chamfer can prevent the edges of the water-permeable holes 23 from generating excessive resistance to water flow, thereby further improving the drainage efficiency.

[0032] Referring to the drawings Figure 4 The reinforcing layer 3 comprises longitudinal reinforcing ribs 31 and transverse grid ribs 32. The transverse grid ribs 32 are designed in a wave shape, allowing a longitudinal extension rate of ±15%. The reinforcing layer 3 not only enhances the overall strength of the waterproof and drainage board, but also adapts to a certain degree of deformation, thereby avoiding damage due to stress concentration.

[0033] Referring to the drawings Figure 4The support layer 4 includes a honeycomb three-dimensional grid structure 41 arranged on the upper layer and a base plate 42 arranged on the lower layer, the thickness of the base plate 42 is 1 / 2-2 / 3 of the thickness of the three-dimensional grid structure 41, the unit edge length of the three-dimensional grid structure 41 is 10-15 mm, the thickness of the three-dimensional grid structure 41 is 3-5 mm, vertical air holes 411 are arranged through the three-dimensional grid structure 41, the diameter of the vertical air holes 411 is 1-2 mm, the hole spacing is 5-10 mm, a plurality of fixing feet 44 are uniformly distributed at the bottom of the support layer 4, and the bottom of the fixing feet 44 is a conical structure, the height of the fixing feet 44 is 10-15 mm, the taper angle of the bottom conical structure is 30°-45°, and the diameter is 5-8 mm, which is helpful for fixing the waterproof drainage board;

[0034] Referring to the drawings Figure 1 And Figure 2 The edge of the base plate 42 is provided with a connecting structure 43 for splicing a plurality of waterproof drainage boards together to form a large-area waterproof drainage system, the connecting structure 43 includes a rectangular protrusion 431 arranged on one side edge of the base plate 42 and a rectangular recess 432 arranged on the other side edge of the base plate 42, the height of the rectangular protrusion 431 is 5-10 mm, and the width is 8-12 mm, the depth of the rectangular recess 432 is 5-10 mm, and the width is 8-12 mm, and the rectangular protrusion 431 and the rectangular recess 432 are matched. The materials of the rectangular protrusion 431 and the rectangular recess 432 are the same as the material of the base plate 42, which is high-strength polypropylene material, and has good corrosion resistance and pressure resistance.

[0035] In the technical scheme adopted in this embodiment, the filter layer 1 is composed of the upper non-woven fabric 11, the lower non-woven fabric 12 and the deformable water-permeable particles 13 arranged therebetween, which not only ensures good water permeability, but also can adapt to a certain degree of deformation to avoid damage due to external force, thereby prolonging the service life; the drainage layer 2 is composed of the array-arranged rhombic protrusions 21, X-shaped drainage channels 22 are formed between adjacent rhombic protrusions 21, which is conducive to the rapid drainage of water flow, and the edges of the water-permeable holes 23 are provided with chamfers, which can prevent the edges of the water-permeable holes 23 from generating excessive resistance to water flow, thereby further improving the drainage efficiency; the reinforcing layer 3 includes the longitudinal reinforcing ribs 31 and the transverse grid ribs 32, which not only enhances the overall strength of the waterproof drainage board, but also can adapt to a certain degree of deformation to avoid damage due to stress concentration, and the three-dimensional grid structure 41 of the support layer 4 not only provides good support, but also further enhances the air permeability.

[0036] Finally: the above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A composite drainage board of porous air-permeable channels, characterized in that, It comprises a filter layer (1), a drainage layer (2), a reinforcing layer (3) and a supporting layer (4) arranged from top to bottom in sequence. The filter layer (1) comprises an upper non-woven fabric (11), a lower non-woven fabric (12) and deformable water-permeable particles (13) sandwiched between the two, the drainage layer (2) is composed of arrayed rhombic protrusions (21), X-shaped drainage channels (22) are formed between adjacent rhombic protrusions (21), the reinforcing layer (3) comprises longitudinal reinforcing ribs (31) and transverse grid ribs (32), and the supporting layer (4) comprises a honeycomb-shaped three-dimensional grid structure (41) arranged on the upper layer and a base plate (42) arranged on the lower layer, and the edge of the base plate (42) is provided with a connecting structure (43).

2. The composite drainage board of claim 1, wherein: The deformable water-permeable particles (13) are elastic rubber balls with honeycomb micropores on the surface, and the compression resilience is greater than or equal to 80%.

3. The composite drainage board of claim 1, wherein: The upper non-woven fabric (11) and the lower non-woven fabric (12) are both polyester fiber non-woven fabrics, with a thickness of 0.5-1mm and a grammage of 100-150g / m².

4. The composite drainage board of claim 1, wherein: The rhombic protrusions (21) have a height of 5-8mm and a side length of 10-15mm, the X-shaped drainage channels (22) have a width of 3-5mm, a depth of 2-3mm and a spacing of 5-10mm between adjacent X-shaped drainage channels (22).

5. The composite drainage board of claim 4, wherein: Water-permeable holes (23) are formed in the middle of the rhombic protrusions (21), the water-permeable holes (23) are circular in shape, have a diameter of 2-4mm and a spacing of 5-10mm, and the edges of the water-permeable holes (23) are provided with chamfers with a radius of 0.5-1mm.

6. The composite drainage board of claim 1, wherein: The transverse grid ribs (32) are designed in a wavy shape, allowing a longitudinal expansion rate of ±15%.

7. The composite drainage board of claim 1, wherein: Vertical air-permeable holes (411) are formed in the three-dimensional grid structure (41), the vertical air-permeable holes (411) have a diameter of 1-2mm and a spacing of 5-10mm.

8. The composite drainage board of claim 1, wherein: The thickness of the base plate (42) is 1 / 2-2 / 3 of that of the three-dimensional grid structure (41).

9. The composite drainage board of claim 1, wherein: The supporting layer (4) is uniformly distributed with a plurality of fixing feet (44) at the bottom, and the fixing feet (44) are conical in structure at the bottom.

10. The composite drainage board of claim 1, wherein: The connecting structure (43) comprises a rectangular protrusion (431) arranged on one side edge of the base plate (42) and a rectangular recess (432) formed on the other side edge of the base plate (42), the rectangular protrusion (431) has a height of 5-10mm and a width of 8-12mm, the rectangular recess (432) has a depth of 5-10mm and a width of 8-12mm, and the rectangular protrusion (431) and the rectangular recess (432) are matched.

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