Concave-convex waterproofing board

Abstract

The utility model discloses a concave-convex type waterproof and drainage board, including double -deck integrated base body, the base body is formed with the upper plate body and lower plate body, and the upper plate body is integrally formed with lower plate body through plastic plate mould pressing process, the lower end surface middle part of lower plate body evenly distributes with a plurality of cylindrical lower leakage funnel, and the position of upper plate body and lower leakage funnel one -to -one correspondence is evenly arranged with a plurality of cylindrical upper leakage funnel, and upper leakage funnel and lower leakage funnel coaxial arrangement and jointly constitute vertical drainage channel, in addition the end face of upper plate body and lower plate body is located in the both sides of upper leakage funnel, lower leakage funnel plane design is used. The device is through the cooperative mechanism of directional flow guide, anti -blockage and anti -backflow, fast splicing, realizes the efficient waterproof and drainage of engineering scene, and the whole process is around fast drainage, anti -damage, easy construction design, adapts roof greening, underground garage roof, roadbed etc. scene, and the drainage efficiency is promoted, avoids the leakage hole blockage, avoids backflow.

Description

Technical Field

[0001] This utility model belongs to the field of waterproofing and drainage technology in building and municipal engineering, and particularly relates to a concave-convex waterproofing and drainage board. Background Technology

[0002] In building and municipal engineering, drainage boards are key components for ensuring the structural safety of projects. Their core function is to quickly drain accumulated water from the base layer (such as rainwater from rooftop greening, seepage from underground garage roofs, and groundwater from roadbeds), preventing long-term water retention that could lead to structural corrosion, leakage, or settlement. However, existing technologies have some problems: low drainage efficiency and easy water accumulation: traditional flat or single funnel-type drainage boards have narrow water flow channels, high water flow resistance, and low drainage rate per unit area, which easily leads to water accumulation in heavy rain or large seepage scenarios; some devices lack a directional flow guidance structure, which makes water flow easy to stagnate and cause the base layer to become damp.

[0003] High risk of clogging and high maintenance cost: The lack of an effective impurity interception structure allows mud, sand, plant roots and other debris to easily enter the drainage channel, causing blockages in traditional devices; after blockage, disassembly and cleaning are required, which is not only time-consuming and labor-intensive, but also easily damages the panel structure, further aggravating the risk of leakage.

[0004] Water backflow is prone to occur, and protection fails: Most drainage boards do not have anti-backflow design, and the discharged water or ground seepage can easily flow back into the base layer, causing mold growth in the roof greening substrate, peeling of the coating on the roof of the underground garage, and even corrosion of the structural steel bars, thus shortening the service life of the project.

[0005] The traditional splicing method relies on bolt fixing or glue bonding. Bolt fixing is time-consuming, and glue bonding is prone to aging and cracking in high or low temperature environments, which can easily form gaps and cause leakage. The splicing firmness is insufficient to resist the impact of soil pressure. Therefore, we propose a concave-convex drainage board. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a concave-convex drainage board, which has the core advantages of high drainage efficiency, solving the problem of leak hole blockage, preventing backflow, improving splicing efficiency, and extending service life. It solves the problems of low drainage efficiency, easy water accumulation, high risk of blockage, high maintenance cost, easy water backflow, protection failure, difficult splicing, and easy leakage.

[0007] This utility model is implemented as follows: a concave-convex drainage board includes a double-layer integrally formed base, which is composed of an upper plate and a lower plate, which are integrally formed by plastic sheet molding process; multiple cylindrical lower funnels are evenly distributed in the middle of the lower end face of the lower plate, and multiple cylindrical upper funnels are evenly distributed on the upper plate at positions corresponding to the lower funnels, and the upper funnels and lower funnels are coaxially arranged and together form a vertical drainage channel; in addition, the end faces of the upper plate and the lower plate on both sides of the upper funnels and the lower funnels are both designed as planes.

[0008] As a preferred embodiment of this utility model, the outer walls of the two adjacent sides of the upper plate are each provided with a set of inwardly recessed T-shaped slots, which extend along the length of the plate and are used for splicing and positioning of adjacent plates.

[0009] As a preferred embodiment of this utility model, the two outer walls adjacent to the side where the upper plate groove is located on the periphery of the lower plate are integrally formed with T-shaped locking blocks; the size and shape of the locking blocks are perfectly matched with the groove, realizing the rapid splicing and fixing of adjacent waterproof and drainage boards.

[0010] As a preferred embodiment of this utility model, the longitudinal sections of both the upper and lower funnels are isosceles trapezoidal structures, and the maximum diameter of the upper funnel is smaller than the minimum diameter of the lower funnel; the lower end of the upper funnel extends coaxially into the interior of the lower funnel, forming a stepped drainage channel that is narrower at the top and wider at the bottom.

[0011] As a preferred embodiment of this utility model, a circular limiting ring for preventing backflow is fixedly connected to the lower part of the inner wall of the lower funnel. The upper end face of the limiting ring is provided with an arc-shaped guiding surface to guide the water flow to discharge downward in one direction.

[0012] As a preferred embodiment of this utility model, a buffer section is integrally formed in the middle of the inner wall of the lower funnel. The buffer section is made of elastic rubber material and is located directly above the limiting ring, used to absorb water flow impact and external vibration.

[0013] In a preferred embodiment of this invention, the lower end of the upper funnel extends coaxially into the interior of the buffer section, and its bottom contacts the upper end face of the limiting ring; the leakage hole of the upper funnel corresponds coaxially with the central channel of the limiting ring, and a filter screen is fixedly embedded at the lower end of the upper funnel to intercept impurities.

[0014] As a preferred embodiment of this invention, the upper plate and the lower plate are made of high-density polyethylene plastic sheets and are integrally formed by a one-time molding process to ensure the overall sealing and structural strength of the plates.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a stepped funnel structure that is narrower at the top and wider at the bottom. The upper and lower funnels are coaxially arranged to form a directional drainage channel. The upper funnel guides the water flow to converge precisely, while the lower funnel has an isosceles trapezoidal longitudinal section design to expand the drainage cross section, thereby increasing the water flow velocity and the drainage speed per unit area. In addition, the funnels are evenly distributed to ensure uniform drainage and avoid local water accumulation, making it suitable for extreme scenarios such as heavy rain and large-scale seepage. 2. This utility model uses a filter screen at the bottom of the upper funnel to intercept impurities such as mud, sand, and plant roots. Combined with a buffer section and a limiting ring structure, it forms a double protection: the rubber buffer section absorbs the impact of water flow, preventing the filter screen from being damaged by impurities; the circular limiting ring not only enables unidirectional water discharge, but its arc-shaped guiding surface also reduces water flow resistance and wear; the double design prevents the device from clogging, eliminating the need for frequent cleaning and reducing maintenance costs. 3. This utility model achieves a quick snap-fit ​​connection by precisely engaging the T-shaped slots on the opposite side of the upper plate with the T-shaped blocks on the corresponding side of the lower plate, thereby improving installation efficiency. The integrated structure of the blocks and slots enhances tensile strength, resists soil pressure, and prevents loosening or leakage at the joint due to soil compression or water flow impact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection structure between the substrates provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the substrate provided in an embodiment of the present utility model; Figure 3 This is a schematic cross-sectional view of the lower funnel provided in an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the upper funnel provided in an embodiment of the present invention.

[0017] In the diagram: 1. Upper plate; 2. Upper funnel; 3. Lower funnel; 4. Lower plate; 11. Slot; 21. Filter screen; 31. Buffer section; 32. Limiting ring; 321. Arc-shaped guide surface; 41. Locking block; 10. Base. Detailed Implementation

[0018] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0019] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] Example 1: like Figure 1As shown in the figure, the present invention provides a concave-convex waterproofing board, comprising a double-layer integrally formed base 10, characterized in that: the base 10 is composed of an upper plate 1 and a lower plate 4, which are integrally formed by plastic plate molding process; a plurality of cylindrical lower funnels 3 are evenly distributed in the middle of the lower end face of the lower plate 4, and a plurality of cylindrical upper funnels 2 are evenly distributed on the upper plate 1 at positions corresponding to the lower funnels 3, and the upper funnels 2 and lower funnels 3 are coaxially arranged. The upper plate 1 and the lower plate 4 together form a vertical drainage channel; in addition, the end faces of the upper funnel 2 and the lower funnel 3 on both sides are designed as flat surfaces; the one-piece molded double-layer base 10 avoids the leakage problem of traditional spliced ​​plates, and the upper and lower funnels 3 are coaxial to form a directional drainage channel, reducing water flow resistance; the uniform distribution of funnels improves the drainage efficiency per unit area, adapting to the rapid drainage needs of scenarios such as roof greening and underground garage roof slabs, solving the pain points of slow drainage and easy water accumulation of traditional flat drainage boards.

[0021] like Figure 2 As shown, the outer walls of the two adjacent sides of the upper plate 1 are each provided with a set of inwardly recessed T-shaped grooves 11. The grooves 11 extend along the length of the plate and are used for splicing and positioning of adjacent plates. The T-shaped grooves 11 on the opposite side of the upper plate 1 provide a precise positioning reference for splicing adjacent plates. The grooves 11 extend along the length direction so that the splicing length can be adjusted as needed. This avoids misalignment and offset during splicing, ensures the continuity of the overall drainage system, and solves the problems of difficult splicing and positioning of traditional drainage boards and easy gaps.

[0022] like Figure 2 As shown, the two outer walls of the lower plate 4 adjacent to the side where the upper plate 1 slot 11 is located are integrally formed with T-shaped locking blocks 41; the size and shape of the locking blocks 41 are perfectly matched with the slot 11, realizing the quick splicing and fixing of adjacent waterproof and drainage boards; the precise matching of the locking blocks 41 and the slot 11 realizes the snap-fit ​​quick splicing, without the need for bolts, glue and other auxiliary parts, effectively improving the fixing efficiency; and effectively resists the splicing loosening caused by soil pressure or water flow impact, improving the splicing firmness.

[0023] like Figure 3 As shown, the longitudinal sections of both the upper funnel 2 and the lower funnel 3 are isosceles trapezoidal structures, and the maximum diameter of the upper funnel 2 is smaller than the minimum diameter of the lower funnel 3. The lower end of the upper funnel 2 extends coaxially into the interior of the lower funnel 3, forming a stepped drainage channel that is narrower at the top and wider at the bottom. The stepped drainage channel increases the water flow velocity and avoids sediment deposition caused by water stagnation. The isosceles trapezoidal structure of the longitudinal section enhances the compressive strength of the funnel, enabling it to withstand soil pressure and solving the problems of easy clogging and weak compressive strength of traditional straight-cylinder funnels.

[0024] like Figure 3As shown, a circular limiting ring 32 for preventing backflow is fixedly connected to the lower part of the inner wall of the lower funnel 3. The upper end face of the limiting ring 32 is provided with an arc-shaped guiding surface 321 to guide the water flow to discharge downward in one direction. The limiting ring 32 realizes the one-way discharge of water flow, prevents backflow, and avoids the discharged water or ground seepage water from flowing back into the base layer, causing the base layer to become damp and damaged. The arc-shaped guiding surface 321 reduces the impact resistance of the water flow, reduces the noise of the water flow, and avoids wear on the inner wall of the funnel, thus extending its service life.

[0025] like Figure 3 As shown, a buffer part 31 is integrally formed in the middle of the inner wall of the lower funnel 3. The buffer part 31 is made of elastic rubber material and is located directly above the limiting ring 32. It is used to absorb the impact of water flow and external vibration. The rubber buffer part 31 absorbs the impact of water flow and external vibration, avoiding funnel cracking caused by hard contact. The elastic material can adapt to the deformation of the plate and avoid brittleness in environments with large temperature differences. It is suitable for use in different climate regions and improves environmental adaptability.

[0026] like Figure 4 As shown, the lower end of the upper funnel 2 extends coaxially into the interior of the buffer section 31, and its bottom contacts the upper end face of the limiting ring 32; the leakage hole of the upper funnel 2 corresponds coaxially with the central channel of the limiting ring 32, and a filter screen 21 is fixedly embedded at the lower end port of the upper funnel 2 to intercept impurities; the filter screen 21 intercepts mud and impurities, preventing the funnel from clogging and eliminating the need for frequent disassembly and cleaning; the coaxial cooperation between the upper funnel 2, the buffer section 31, and the limiting ring 32 ensures that the water flows in a directional manner, avoiding local wear caused by deflection.

[0027] like Figure 1 As shown, the upper plate 1 and the lower plate 4 are made of high-density polyethylene plastic sheets and are integrally formed by a one-time molding process to ensure the overall sealing and structural strength of the plates. The one-time molding process eliminates the gaps between the plates, improves the sealing performance, and completely solves the problems of easy leakage and short lifespan of traditional adhesive plates. The combination of high-density polyethylene material and molding process improves the bending strength of the plates and extends their service life, making them suitable for long-term outdoor or underground use.

[0028] Working principle of Example 1: When in use, lay it in the target area as needed (such as under the green substrate of the roof, on the waterproof layer of the roof of the underground garage, or in the base layer of the roadbed), ensuring that the upper plate 1 faces upward and the lower funnel 3 faces downward to form a vertical drainage channel; fix the spliced ​​waterproof and drainage board as a whole through the reserved fixing holes (or matching pressure strips) on the edge of the plate to prevent displacement caused by construction backfilling, soil pressure or water flow impact, and ensure the continuity of the drainage channel.

[0029] After the water (rainwater, seepage) from the base layer seeps into the upper plate 1 of the device, it is quickly collected by the evenly distributed upper funnel 2. The lower end of the upper funnel 2 extends into the lower funnel 3 to form a stepped channel that is narrow at the top and wide at the bottom, which greatly reduces the water flow resistance and allows the water to be discharged quickly downwards, avoiding stagnation and dampness. The filter screen 21 at the bottom of the upper funnel 2 can directly intercept impurities such as mud, sand, and plant roots, preventing them from entering the drainage channel and causing blockage, thus preventing the device from becoming clogged. The rubber buffer part 31 can absorb the impact of water flow and external vibration (such as construction trampling or vehicle running over it), preventing the funnel from being damaged by hard contact. The limiting ring 32 in the lower funnel 3, together with the arc-shaped guide surface 321, can guide the water flow to be discharged downwards in one direction, and can also completely prevent the backflow of discharged water or ground seepage, preventing backflow and protecting the base structure from moisture damage.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A textured waterproofing board, comprising a double-layer integrally formed substrate (10), characterized in that: The base (10) is composed of an upper plate (1) and a lower plate (4), which are integrally formed by plastic plate molding process; a number of cylindrical lower funnels (3) are evenly distributed in the middle of the lower end face of the lower plate (4), and a number of cylindrical upper funnels (2) are evenly distributed on the upper plate (1) at positions corresponding to the lower funnels (3), and the upper funnels (2) and the lower funnels (3) are coaxially arranged and together form a vertical drainage channel; in addition, the end faces of the upper plate (1) and the lower plate (4) on both sides of the upper funnels (2) and the lower funnels (3) are all designed as planes.

2. The concave-convex drainage board as described in claim 1, characterized in that: The outer walls of the two adjacent sides of the upper plate (1) are provided with a set of inwardly recessed T-shaped slots (11). The slots (11) extend along the length of the plate and are used for splicing and positioning of adjacent plates.

3. The concave-convex drainage board as described in claim 2, characterized in that: The two outer walls of the lower plate (4) adjacent to the slot (11) of the upper plate (1) are integrally formed with T-shaped blocks (41); the size and shape of the blocks (41) are perfectly matched with the slot (11) to achieve quick splicing and fixing of adjacent waterproof and drainage boards.

4. The concave-convex drainage board as described in claim 1, characterized in that: The longitudinal sections of the upper funnel (2) and the lower funnel (3) are both isosceles trapezoidal structures, and the maximum diameter of the upper funnel (2) is smaller than the minimum diameter of the lower funnel (3); the lower end of the upper funnel (2) extends coaxially into the interior of the lower funnel (3), forming a stepped drainage channel that is narrow at the top and wide at the bottom.

5. The concave-convex drainage board as described in claim 4, characterized in that: The lower part of the inner wall of the lower funnel (3) is fixedly connected to a circular limiting ring (32) for preventing backflow. The upper end face of the limiting ring (32) is provided with an arc-shaped guide surface (321) to guide the water flow to discharge downward in one direction.

6. The concave-convex drainage board as described in claim 5, characterized in that: The lower funnel (3) has an integrally formed buffer part (31) in the middle of its inner wall. The buffer part (31) is made of elastic rubber material and is located directly above the limiting ring (32) to absorb water flow impact and external vibration.

7. The concave-convex drainage board as described in claim 6, characterized in that: The lower end of the upper funnel (2) extends coaxially into the interior of the buffer section (31), and its bottom contacts the upper end face of the limiting ring (32). The leakage hole of the upper funnel (2) corresponds coaxially with the central channel of the limiting ring (32), and a filter screen (21) is fixedly embedded at the lower end port of the upper funnel (2) to intercept impurities.

8. The concave-convex drainage board as described in claim 1, characterized in that: The upper plate (1) and the lower plate (4) are made of high-density polyethylene plastic sheets and are integrally formed by a one-time molding process to ensure the overall sealing and structural strength of the plate.

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