Roof drainage structure
By incorporating dust collection boxes and drainage hoppers on the roof platform and parapet wall, a self-cleaning function is achieved, solving the problems of low drainage efficiency and easy clogging in traditional roof drainage structures. This improves drainage efficiency and system reliability, and enhances safety and equipment lifespan.
Patent Information
- Application Number
- CN202423320010.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional roof drainage structures are inefficient and prone to clogging, especially at the side drain outlets where dust and rainwater mix and accumulate, affecting normal drainage function.
Design a roof drainage structure including a roof platform, a parapet wall, a dust collection box, and a drainage hopper. The dust collection box is installed in a groove, and rainwater enters the dust collection box through an opening. When the flow is light, dust and impurities are deposited, and when the flow is heavy, impurities and water enter the drainage hopper together, achieving a self-cleaning function. The rainwater is then discharged directly through a rainwater downpipe. Combined with sealant and a drainage grate to filter debris, the drainage efficiency is improved.
It effectively prevents dust and impurities from clogging the system, ensures normal drainage, improves drainage efficiency, reduces the risk of system blockage, enhances system reliability and safety, adapts to different rainfall conditions, and extends equipment life.
Smart Images
Figure CN223838451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a roof drainage structure. Background Technology
[0002] In the field of building engineering, the effectiveness of roof drainage structures directly affects the waterproofing performance and service life of buildings. Roof drainage systems are generally divided into two types: bottom drainage and side drainage. Bottom drainage systems discharge rainwater by creating holes in the roof slab and connecting vertical drain pipes, suitable for large-area roof drainage needs; while side drainage systems use drain outlets installed on the parapet wall to introduce water horizontally and discharge it through bends into drain pipes, making them more suitable for drainage of small roof areas such as stairwells and elevator machine rooms.
[0003] However, traditional roof drainage structures have some defects and shortcomings. Because the side drain outlets are designed perpendicular to the roof surface, full-area drainage is rarely achieved in actual operation; the drainage area is smaller than the outlet area, unless a heavy rainstorm causes deep flooding that covers the entire roof panel. This limits the drainage efficiency of the side drain outlets. More importantly, roof dust mixed with rainwater easily accumulates at the bottom of the side drain outlets, causing blockages and affecting normal drainage function.
[0004] Therefore, it is necessary to provide a new roof drainage structure to solve the above-mentioned technical problems. Utility Model Content
[0005] The main purpose of this invention is to propose a roof drainage structure that aims to improve the technical problems of poor performance and easy clogging in existing roof drainage structures.
[0006] To achieve the above objectives, this utility model proposes a roof drainage structure, comprising:
[0007] The roof platform has a recessed groove.
[0008] And a parapet wall surrounding the roof platform, the parapet wall having through holes for installation;
[0009] A dust collection box is installed in the groove, and an opening is provided on the top of the dust collection box for rainwater to enter the dust collection box;
[0010] A drainage hopper is installed in the mounting through hole. The drainage hopper includes an inlet and an outlet. The outlet is used to communicate with the outside world, and the inlet is connected to the dust collection box.
[0011] In one embodiment, the diameter of the water inlet is larger than the cross-sectional area of the dust collection box in the vertical direction.
[0012] In one embodiment, the roof drainage structure further includes a rainwater downpipe, which is arranged vertically, with one end of the rainwater downpipe connected to the outlet and the other end of the rainwater downpipe connected to the outside.
[0013] In one embodiment, the roof drainage structure further includes a sealant fitted between the drain hopper and the mounting through-hole.
[0014] In one embodiment, the roof drainage structure further includes a drainage grate, which includes a vertically arranged first panel and a horizontally arranged second panel. The first panel and the second panel are connected to each other. The first panel covers the water inlet, and the second panel covers the opening. The first panel forms a first drainage outlet, and the second panel forms a second drainage outlet.
[0015] In one embodiment, there are multiple first drain outlets, which are spaced apart horizontally; and there are multiple second drain outlets, which are spaced apart horizontally.
[0016] In one embodiment, both the first drain outlet and the second drain outlet are rectangular in shape.
[0017] In one embodiment, the drain grate is a stainless steel drain grate.
[0018] In one embodiment, there are multiple grooves, multiple dust collection boxes, multiple mounting through holes, and multiple drainage hoppers. The number of multiple drainage hoppers, multiple mounting through holes, multiple grooves, and multiple dust collection boxes are equal and are arranged in a one-to-one correspondence.
[0019] In one embodiment, the dust collection box is a stainless steel dust collection box, and the inner wall of the inner cavity of the stainless steel dust collection box is smoothly arranged.
[0020] In the above scheme, the roof drainage structure includes a roof platform, a parapet wall surrounding the roof platform, a dust collection box, and a drainage hopper. The roof platform has a recess, and the parapet wall has an installation through-hole. The dust collection box is installed in the recess, with an opening at the top for rainwater to enter. The drainage hopper is installed in the installation through-hole and includes an inlet and an outlet. The outlet connects to the outside, and the inlet connects to the dust collection box. A recess is created on the roof platform, and an installation through-hole is created in the parapet wall surrounding the roof platform. The dust collection box is installed in the recess, and the drainage hopper is installed in the installation through-hole, connecting to the outside. One end of the dust collection box connects to the drainage hopper. When it rains, water accumulates on the roof platform. The accumulated rainwater flows into the dust collection box through the opening. If the water flow is small, the mixture of rainwater and dust flows through the dust collection box, sinks under gravity, and accumulates at the bottom of the box. The accumulated water then flows into the drainage hopper from the top of the dust collection box's inner cavity. The water flows out through the drain outlet, preventing dust and debris from clogging the inlet and ensuring proper drainage. When the water flow is strong, it washes away dust and impurities accumulated at the bottom of the dust collection box, allowing them to enter the drain hopper along with the water. Finally, the water, dust, and impurities are discharged through the outlet, thus achieving a self-cleaning function. The dust collection box design in this invention allows dust and impurities to settle at the bottom, preventing clogging and ensuring efficient drainage. Attached Figure Description
[0021] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the overall structure of an embodiment of the roof drainage structure provided by this utility model;
[0023] Figure 2 A schematic diagram of the connection structure between the drainage grate and the dust collection box provided by this utility model.
[0024] Explanation of icon numbers:
[0025] 100. Roof drainage structure; 1. Roof platform; 2. Parapet wall; 3. Dust collection box; 4. Drainage hopper; 11. Groove; 21. Mounting through hole; 41. Water inlet; 42. Water outlet; 5. Rainwater downpipe; 6. Sealant; 7. Drainage grate; 71. First panel; 72. Second panel; 711. First drain outlet; 721. Second drain outlet.
[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0030] Please see Figure 1 and Figure 2This embodiment proposes a roof drainage structure 100, including a roof platform 1, a parapet wall 2 surrounding the roof platform 1, a dust collection box 3, and a drainage hopper 4. The roof platform 1 has a groove 11, the parapet wall 2 has an installation through hole 21, the dust collection box 3 is installed in the groove 11, and the top of the dust collection box 3 has an opening for rainwater to enter the dust collection box 3. The drainage hopper 4 is installed in the installation through hole 21 and includes an inlet 41 and an outlet 42. The outlet 42 is used to communicate with the outside, and the inlet 41 is connected to the dust collection box 3. A recess 11 is made on the roof of the house, that is, the roof platform 1. Then, an installation through hole 21 is made on the parapet wall 2 surrounding the roof platform 1. A dust collection box 3 is installed in the recess 11, and a drainage hopper 4 is installed in the installation through hole 21. The drainage hopper 4 is connected to the outside. One end of the dust collection box 3 is connected to the drainage hopper 4. When it rains, water will accumulate on the roof platform 1. The accumulated rainwater flows into the dust collection box 3 through the opening. If the water flow is small, the mixture of rainwater and dust flows through the dust collection box 3 and sinks and collects at the bottom of the dust collection box 3 under the action of gravity, while the water will flow from the top of the inner cavity of the dust collection box 3. The water enters the drain hopper 4 and then flows out to the outside through the outlet 42. This prevents dust and debris from clogging the inlet 41, ensuring normal drainage. If the water flow is large, it will wash away the dust and impurities accumulated at the bottom of the dust collection box 3, allowing them to enter the drain hopper 4 through the inlet 41 along with the accumulated water. Finally, the water, dust, and impurities are discharged from the outlet 42, thus achieving a self-cleaning function. In this embodiment, the dust collection box 3 is designed so that dust and impurities can be deposited at the bottom of the dust collection box 3, preventing them from clogging the drain hopper 4 and ensuring drainage efficiency.
[0031] Please see Figure 1 and Figure 2 In one embodiment, the diameter of the inlet 41 is larger than the cross-sectional area of the dust collection box 3 in the vertical direction. When it rains, water accumulates on the roof platform 1. The accumulated rainwater flows into the dust collection box 3 through the opening. If the water flow is small, the mixture of rainwater and dust flows through the dust collection box 3, sinks under gravity, and accumulates at the bottom of the box. The accumulated water flows from the top of the inner cavity of the dust collection box 3 into the drainage hopper 4, and then flows out through the outlet 42. This prevents dust and debris from clogging the inlet 41, ensuring normal drainage. If the water flow is large, it washes away the dust and impurities accumulated at the bottom of the dust collection box 3, causing them to enter the drainage hopper 4 along with the accumulated water through the inlet 41. Since the diameter of the inlet 41 is larger than the cross-sectional area of the dust collection box 3 in the vertical direction, dust and impurities are even less likely to clog the drainage hopper 4, further improving drainage efficiency.
[0032] Please see Figure 1 and Figure 2 In one embodiment, the roof drainage structure 100 also includes a rainwater downpipe 5, which is vertically positioned with one end connected to an outlet 42 and the other end connected to the outside. The rainwater downpipe 5 provides a direct, rapid path from the roof to the ground, reducing the time rainwater remains on the roof surface. This helps prevent excessive water accumulation on the roof, reduces the load on the roof structure, and minimizes potential roof leaks caused by prolonged water accumulation. By directly connecting the rainwater downpipe 5 to the outlet 42 of the drainage hopper 4, rainwater can be discharged quickly and stably, maintaining good drainage even in heavy rain or storms. This design reduces the risk of drainage system blockage and improves system reliability. The vertically positioned rainwater downpipe 5 can be designed to blend seamlessly with the building's exterior walls, thus not affecting or even enhancing the building's aesthetics. The rainwater downpipe 5 typically has inspection ports, making cleaning and maintenance easier. If problems arise in the drainage system, cleaning or repairs can be performed through these inspection ports without damaging the building structure. Draining rainwater into vertical downpipes can effectively reduce the noise generated when water flows onto the ground, which is especially important in residential or commercial areas as it provides a quieter environment.
[0033] Please see Figure 1 and Figure 2 In one embodiment, the roof drainage structure 100 also includes a sealant 6, which is fitted between the drain hopper 4 and the mounting through-hole 21. The primary function of the sealant 6 is to provide a waterproof seal, ensuring that rainwater does not leak into the building interior through the gap between the drain hopper 4 and the mounting through-hole 21. This is crucial for protecting the building structure from water damage, especially for areas near the parapet wall 2, where the risk of leakage is higher. The sealant 6 has good weather resistance, resisting the effects of ultraviolet radiation, temperature changes, weathering, and other factors, maintaining its sealing effect for a long time. This ensures that the sealing performance will not significantly decrease even under harsh weather conditions. The sealant 6 can fill the tiny gaps between the drain hopper 4 and the mounting through-hole 21, increasing the contact area between the two and thus improving the stability and robustness of the entire drainage structure. This enhanced connection helps prevent the drain hopper 4 from loosening or shifting due to external vibrations or wind.
[0034] Please see Figure 1 and Figure 2In one embodiment, the roof drainage structure 100 further includes a drainage grate 7, which comprises a vertically arranged first panel 71 and a horizontally arranged second panel 72. The first panel 71 and the second panel 72 are connected to each other. The first panel 71 covers the water inlet 41, and the second panel 72 covers the opening. The first panel 71 forms a first drain outlet 711, and the second panel 72 forms a second drain outlet 721. By setting multiple first drain outlets 711 on the first panel 71, larger debris can be effectively filtered out, preventing them from directly entering the drainage hopper 4 and reducing the risk of blockage. The second drain outlets 721 on the second panel 72 can further filter smaller particles, ensuring that only clean rainwater can flow into the dust collection box 3, improving the efficiency of the entire drainage system. The design of the first drain outlets 711 and the second drain outlets 721 can disperse the concentrated rainwater into multiple fine streams, reducing the pressure on a single flow channel, making the water flow more evenly distributed in the dust collection box 3 and the drainage hopper 4, reducing the impact on the system, and extending the service life of the equipment. The presence of the drainage grate 7 can prevent people or small animals from accidentally falling into the drainage system, especially near the parapet wall 2 or the edge of the roof, thus increasing safety protection.
[0035] In one embodiment, there are multiple first drain outlets 711, spaced apart horizontally, and multiple second drain outlets 721, also spaced apart horizontally. This design of multiple first drain outlets 711 and multiple second drain outlets 721 disperses incoming rainwater into multiple fine streams, rather than concentrating it in one place. This helps to evenly distribute the water flow, reduce pressure on individual drain outlets, and avoid localized impacts and potential overflows caused by excessively concentrated water flow. It also increases the total drainage area, allowing for the handling of more water volume at the same time. Especially during heavy rainfall or storms, this design can drain accumulated water more quickly, reducing the risk of roof flooding and thus protecting the building structure from water damage. Multiple first drain outlets 711 effectively intercept larger debris, while multiple second drain outlets 721 further filter smaller particles. This multi-stage filtration mechanism improves the overall cleanliness of the system, reduces impurities entering the dust collection box 3 and drain hopper 4, and lowers the risk of clogging. When rainfall is light, only some drains operate, ensuring energy-efficient system operation. When rainfall increases, all drains function simultaneously, guaranteeing high-efficiency drainage. This design allows the system to flexibly adapt to different weather conditions, maintaining consistently good drainage performance. Because the water flow is distributed across multiple drains, each drain handles a relatively small volume, reducing the likelihood of a single drain becoming clogged. Even if one drain is temporarily blocked, the others can continue operating, ensuring system continuity and stability.
[0036] Please see Figure 1 and Figure 2 In one embodiment, both the first drain outlet 711 and the second drain outlet 721 are rectangular. The rectangular drain outlet design provides a more regular and uniform water flow path. Compared to circular or other irregular shapes, the rectangular edges guide water flow better, reducing turbulence and eddies in the water flow dynamics, allowing water to flow more smoothly through the drainage system. Within the same space, a rectangular drain outlet typically provides a larger opening area than a circular one, meaning more water can be discharged at the same time, improving drainage efficiency. Especially during heavy rain or downpours, this design helps to quickly drain accumulated water, reducing the risk of roof flooding. The rectangular shape also makes cleaning with tools easier. Right-angled and straight edges are easier to access and manipulate, reducing cleaning dead zones, ensuring the inside of the drain outlet is clean and tidy, and reducing the possibility of clogging.
[0037] In one embodiment, the drainage grate 7 is a stainless steel drainage grate 7. Stainless steel has excellent corrosion resistance, resisting the erosion of water, moisture in the air, and various chemicals. This allows the stainless steel drainage grate 7 to maintain good condition even after long-term exposure to the outdoor environment, unlike ordinary metal materials which are prone to rust or corrosion, thus extending its service life. Stainless steel has high strength and toughness, capable of withstanding significant weight and pressure without easily deforming or being damaged. This is particularly important for roof drainage systems, as they need to withstand the impact of rainwater, pedestrian traffic, and other external factors for extended periods. Especially in high-rise buildings, the stainless steel drainage grate 7 can better withstand the pressure from strong winds, ensuring the stability and safety of the system. The surface of stainless steel is typically very smooth, making it difficult for dirt and debris to adhere, resulting in simpler and faster daily cleaning. Simply rinsing with water or using simple cleaning tools is sufficient to keep it clean and tidy, reducing maintenance costs and workload.
[0038] In one embodiment, there are multiple grooves 11, multiple dust collection boxes 3, multiple mounting through holes 21, and multiple drainage hoppers 4. The number of drainage hoppers 4, multiple mounting through holes 21, multiple grooves 11, and multiple dust collection boxes 3 are equal and arranged in a one-to-one correspondence. By setting up such a structure, the drainage efficiency can be further improved.
[0039] In one embodiment, the dust collection box 3 is a stainless steel dust collection box 3, and the inner wall of the inner cavity of the stainless steel dust collection box 3 is smoothly designed. When the water flow is large, due to the smooth surface of the stainless steel material, only a small water flow pressure is needed to wash away the accumulated dust and sludge on the bottom of the dust collection box 3, thus achieving a self-cleaning function. This structural design makes self-cleaning easier.
[0040] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A roof drainage structure, characterized in that, include: The roof platform has a recessed groove. And a parapet wall surrounding the roof platform, the parapet wall having through holes for installation; A dust collection box is installed in the groove, and an opening is provided on the top of the dust collection box for rainwater to enter the dust collection box; A drainage hopper is installed in the mounting through hole. The drainage hopper includes an inlet and an outlet. The outlet is used to communicate with the outside world, and the inlet is connected to the dust collection box.
2. The roof drainage structure as described in claim 1, characterized in that, The diameter of the water inlet is larger than the cross-sectional area of the dust collection box in the vertical direction.
3. The roof drainage structure as described in any one of claims 1 or 2, characterized in that, The roof drainage structure also includes a rainwater downpipe, which is installed vertically, with one end connected to the outlet and the other end connected to the outside.
4. The roof drainage structure as described in any one of claims 1 or 2, characterized in that, The roof drainage structure also includes a sealant that is fitted between the drain hopper and the mounting through hole.
5. The roof drainage structure as described in any one of claims 1 or 2, characterized in that, The roof drainage structure also includes a drainage grate, which includes a vertically arranged first panel and a horizontally arranged second panel. The first panel and the second panel are connected to each other. The first panel covers the water inlet, and the second panel covers the opening. The first panel forms a first drainage outlet, and the second panel forms a second drainage outlet.
6. The roof drainage structure as described in claim 5, characterized in that, The number of first drain outlets is multiple, and the multiple first drain outlets are spaced apart in the horizontal direction. The number of second drain outlets is also multiple, and the multiple second drain outlets are spaced apart in the horizontal direction.
7. The roof drainage structure as described in claim 6, characterized in that, Both the first drain outlet and the second drain outlet are rectangular in shape.
8. The roof drainage structure as described in claim 5, characterized in that, The drainage grate is a stainless steel drainage grate.
9. The roof drainage structure as described in claim 1, characterized in that, The number of grooves, the number of dust collection boxes, the number of mounting through holes, and the number of drainage hoppers are all equal and correspond one-to-one.
10. The roof drainage structure as described in claim 1, characterized in that, The dust collection box is a stainless steel dust collection box, and the inner wall of the inner cavity of the stainless steel dust collection box is smooth.