A roof water-accumulation-preventing drainage structure
By combining a water-collecting plate, a filter screen, and a water pump in the roof design, the problem of water accumulation and blockage in the roof drainage structure during heavy rain is solved, achieving rapid drainage and efficient debris filtration, and improving the stability and resource utilization of the drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AOYI CONSTR ENG DESIGN CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
Smart Images

Figure CN224495614U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building drainage technology, and more specifically, to a drainage structure for preventing water accumulation on roofs. Background Technology
[0002] Roof drainage is an important aspect, and traditional roof drainage structures usually rely solely on simple drainage slopes and drain pipes for drainage.
[0003] A search revealed that patent publication number CN219825873U discloses a roof drainage structure for a building, including a roof body. Two sets of eaves are each equipped with a drainage channel, and both channels have cleaning mechanisms on their inner sides. The drainage channels facilitate rainwater collection and diversion, while the cleaning mechanisms remove debris and fallen leaves. Collection troughs collect the collected debris and leaves, and downpipes discharge the collected rainwater. This structure effectively cleans debris and leaves, preventing filter clogging and facilitating regular cleaning of the collection troughs, reducing cleaning frequency. The inventors discovered the following problems with the existing technology during the development of this invention:
[0004] Existing roof drainage systems mostly rely on natural slopes, which make it difficult to quickly drain large amounts of rainwater during heavy rains, leading to water accumulation. Prolonged water accumulation increases the roof load, threatening structural safety, and also accelerates material aging and shortens the lifespan of the building. At the same time, debris such as leaves and mud can easily enter the drainage pipes with rainwater and accumulate, causing blockages and preventing rainwater from draining in time, further aggravating water accumulation and affecting the normal use of the building.
[0005] Therefore, a drainage structure for preventing water accumulation on roofs is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a drainage structure for preventing water accumulation on the roof, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a drainage structure for preventing roof water accumulation, comprising a house body, a water-collecting plate fixedly installed on the top of the house body, a roof body fixedly placed on the top of the house body, water-collecting troughs opened on both sides of the water-collecting plate, positioning plates fixedly installed at both ends inside the water-collecting troughs, threaded through holes evenly opened above the positioning plates, a filter screen plate placed above the positioning plates, an inclined plate fixedly installed inside the water-collecting troughs, a water supply pipe connected to the left side of the water-collecting plate, a water pump detachably installed at the connection of the two water supply pipes, and a drain pipe fixedly installed at the bottom of the water pump.
[0008] Preferably, positioning blocks are evenly distributed and installed on the top of the roof body, and a roof panel is detachably installed on the top of the roof body, with the inner wall of the roof panel in contact with the upper surface of the positioning blocks.
[0009] Preferably, the bottom edges of the roof panel are located directly above the water-collecting plate, so that when it rains, rainwater slides down the surface of the roof panel.
[0010] Preferably, the filter screen is provided with threaded holes at both ends that are compatible with the positioning bolts. The filter screen is placed at a preset position above the positioning plate, and the positioning bolts are slowly screwed into the threaded holes at both ends of the filter screen and the corresponding threaded through holes on the positioning plate. As the positioning bolts are gradually tightened, the positioning plate and the filter screen are fitted and positioned.
[0011] Preferably, a discharge port is provided on one side of the water tank, the discharge port penetrates one side of the water plate, and the right end of the inclined plate is attached to the left side of the discharge port.
[0012] Preferably, the water supply pipe passes through the left side of the water-holding plate, and the left side of the water-holding plate has a hole that matches the diameter of the water supply pipe. After passing through the water-holding plate, the water supply pipe continues to extend, and the end of the water supply pipe extends into the interior of the water-holding tank.
[0013] Preferably, a positioning rod is welded and fixedly installed on one side of the water-holding plate, and a clamping block is fixedly installed on the end of the positioning rod away from the water-holding plate by bolts. The clamping block is located on the outside of the water supply pipe, and a threaded hole is opened on the upper side of the clamping block. A fastening bolt is installed in the internal thread of the threaded hole.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] Compared with existing technologies, this roof waterproofing drainage structure has water-collecting grooves on both sides of the water-collecting plate, which can quickly collect and gather rainwater. With the help of water pipes and water pumps, the water pumps can be flexibly started according to the water accumulation situation. Even in extreme weather such as heavy rain, the rainwater can be quickly discharged, which greatly improves the drainage efficiency and effectively avoids roof water accumulation.
[0016] Compared to existing technologies, this roof drainage structure, designed to prevent water accumulation, effectively intercepts debris such as leaves, branches, and mud by installing a filter screen within a water-collecting tank and securing it to a positioning plate with positioning bolts. This prevents the filter screen from entering the drainage system and causing blockages. Furthermore, the filter screen is removable for easy regular cleaning and replacement, ensuring optimal filtration. An inclined plate with a discharge port is installed within the water-collecting tank. When debris accumulates to a certain level, the discharge port can be opened, allowing the debris to be automatically discharged under the guidance of the inclined plate. This eliminates the need for manual entry into complex environments for cleaning, reducing maintenance difficulty and costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the roof structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the internal structure of the water tank of this utility model.
[0021] The attached diagram is labeled as follows: 1. Main body of the building; 2. Water-holding plate; 3. Roof body; 4. Positioning block; 5. Roof panel; 6. Water-holding trough; 7. Positioning plate; 8. Threaded through hole; 9. Filter screen; 10. Positioning bolt; 11. Inclined plate; 12. Water supply pipe; 13. Water pump; 14. Drainage pipe; 15. Positioning rod; 16. Clamping block; 17. Fastening bolt; 18. Discharge port. Detailed Implementation
[0022] 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 protection scope of the present utility model. Example 1
[0023] As attached Figures 1 to 4The diagram shows a roof drainage structure for preventing water accumulation, including a house body 1, a water-collecting plate 2 fixedly installed on the top of the house body 1, a roof body 3 fixedly installed on the top of the house body 1, water-collecting troughs 6 on both sides of the water-collecting plate 2, positioning plates 7 fixedly installed at both ends inside the water-collecting troughs 6, threaded through holes 8 evenly opened on the top of the positioning plates 7, a filter screen plate 9 placed on the top of the positioning plates 7, an inclined plate 11 fixedly installed inside the water-collecting troughs 6, a water supply pipe 12 connected to the left side of the water-collecting plate 2, a water pump 13 detachably installed at the connection of the two water supply pipes 12, and a drain pipe 14 fixedly installed at the bottom of the water pump 13.
[0024] Specifically: First, the water-collecting plate 2, in conjunction with the water-collecting trough 6, can quickly collect and store a large amount of rainwater, effectively preventing rainwater from accumulating on the roof body 3, reducing the risk of roof leakage, and ensuring the structural safety of the building body 1; Second, the positioning plate 7 and the filter screen 9 are designed with threaded through holes 8, etc., to facilitate installation and disassembly. The filter screen 9 can filter impurities such as leaves to prevent clogging of subsequent drainage components; Third, the inclined plate 11 guides the debris in the water-collecting trough 6 to converge at the discharge point, making it easy to clean; Fourth, the water supply pipe 12 connects to the water-collecting plate 2, and in conjunction with the detachable water pump 13, it can flexibly control drainage, transporting rainwater to a designated location through the drainage pipe 14, realizing the rational use of rainwater, improving drainage efficiency and resource utilization, and comprehensively optimizing the roof drainage performance. Example 2
[0025] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:
[0026] In a preferred embodiment, positioning blocks 4 are evenly distributed and installed on the top of the roof body 3. The positioning blocks 4 have a regular geometric shape, are made of sturdy material, and are fixed to the roof body 3 in a stable state. The roof panel 5 is installed on the top of the roof body 3 in a detachable manner. The inner wall of the roof panel 5 is in contact with the upper surface of the positioning blocks 4. This not only facilitates the installation and removal of the roof panel 5 and makes it convenient for later inspection and maintenance of the roof, but also the positioning blocks 4 can effectively fix the position of the roof panel 5, prevent it from sliding and shifting, and ensure the stability of the roof structure.
[0027] As a preferred embodiment, the bottom edges of the roof panel 5 are located directly above the water-collecting plate 2. When it rains, rainwater slides down the surface of the roof panel 5 and drips precisely onto the water-collecting plate 2 below, ensuring efficient rainwater collection, preventing rainwater from splashing out and losing, and allowing the water-collecting plate 2 to fully play its role in receiving rainwater, providing a sufficient source for subsequent rainwater storage and utilization, making the entire house's rainwater collection system operate more scientifically and rationally.
[0028] As a preferred embodiment, the left and right ends of the filter screen plate 9 are respectively provided with threaded holes that are compatible with the positioning bolts 10. The positioning bolts 10 have sufficient strength and stability. During installation, the filter screen plate 9 is placed in a preset position above the positioning plate 7, and the positioning bolts 10 are slowly screwed into the threaded holes at both ends of the filter screen plate 9 and the corresponding threaded through holes 8 on the positioning plate 7. As the positioning bolts 10 are gradually tightened, the positioning plate 7 and the filter screen plate 9 are fitted and positioned, effectively preventing the filter screen plate 9 from shaking or shifting during use, and ensuring the stable performance of its filtration function.
[0029] In a preferred embodiment, a discharge port 18 is provided on one side of the water tank 6. The discharge port 18 passes through one side of the water plate 2, providing a channel for cleaning debris in the water tank 6 and guiding the debris to converge in a specific direction. Furthermore, the right end of the inclined plate 11 is attached to the left side of the discharge port 18. When the water tank 6 needs to be cleaned, the debris can slide smoothly down the inclined plate 11 to the discharge port 18 and be conveniently and quickly discharged out of the tank.
[0030] In a preferred embodiment, the water pipe 12 passes through the left side of the water-collecting plate 2. The left side of the water-collecting plate 2 has a hole that matches the diameter of the water pipe 12. The water pipe 12 passes through this hole to ensure a good seal at the connection and prevent water leakage. After passing through the water-collecting plate 2, the water pipe 12 continues to extend, and the end of the water pipe 12 extends into the interior of the water-collecting tank 6, so that the rainwater collected in the water-collecting tank 6 can be smoothly transported through the water pipe 12, providing an effective channel for the subsequent use or discharge of rainwater.
[0031] In a preferred embodiment, a positioning rod 15 is welded and fixedly installed on one side of the water-holding plate 2 to ensure a stable connection between the positioning rod 15 and the water-holding plate 2. A clamping block 16 is fixedly installed on the end of the positioning rod 15 away from the water-holding plate 2 by bolts. The clamping block 16 is located on the outside of the water supply pipe 12 and plays a role in positioning and supporting the water supply pipe 12. In order to further fix the water supply pipe 12, a threaded hole is opened on the upper side of the clamping block 16. A fastening bolt 17 is installed in the internal thread of the threaded hole. By tightening the fastening bolt 17, the water supply pipe 12 can be tightly clamped.
[0032] In this embodiment, both the house body 1 and the water-holding plate 2 are commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.
[0033] The working process of this utility model is as follows: During use, when it rains, rainwater slides down the surface of the roof panel 5 into the water-collecting troughs 6 on both sides of the water-collecting plate 2. The filter screen 9 in the water-collecting trough 6 is positioned by the positioning bolts 10 and the threaded through holes 8 on the positioning plate 7, which can filter leaves, mud, and other debris in the rainwater in stages. After the debris accumulates, it is discharged from the discharge port 18 under the guidance of the inclined plate 11. Then, the rainwater in the water-collecting trough 6 is transported through the water supply pipe 12. The water supply pipe 12 passes through the reserved hole in the water-collecting plate 2 and extends into the water-collecting trough 6. A water pump 13 is detachably installed at the connection of the two water supply pipes 12. According to the actual drainage needs, the water pump 13 is flexibly started to discharge the rainwater through the drain pipe 14. In addition, the positioning rod 15 on one side of the water-collecting plate 2 is welded and fixed, and the other end is bolted to install the clamping block 16. The clamping block 16 is located outside the water supply pipe 12 and is fixed by the fastening bolts 17 to ensure the stability of the water supply pipe 12.
Claims
1. A roof drainage structure for preventing water accumulation, comprising a building body (1), characterized in that: A water-holding plate (2) is fixedly installed on the top of the house body (1), and a roof body (3) is fixedly installed on the top of the house body (1). Water-holding troughs (6) are opened on both sides of the water-holding plate (2). Positioning plates (7) are fixedly installed at both ends inside the water-holding troughs (6). Threaded through holes (8) are evenly opened on the top of the positioning plates (7). A filter screen plate (9) is placed on the top of the positioning plates (7). An inclined plate (11) is fixedly installed inside the water-holding troughs (6). A water supply pipe (12) is connected to the left side of the water-holding plate (2). A water pump (13) is detachably installed at the connection of the two water supply pipes (12). A drain pipe (14) is fixedly installed at the bottom of the water pump (13).
2. The roof drainage structure for preventing water accumulation according to claim 1, characterized in that: Positioning blocks (4) are evenly distributed and installed on the top of the roof body (3). A roof panel (5) is installed on the top of the roof body (3) in a detachable manner. The inner wall of the roof panel (5) is in contact with the upper surface of the positioning blocks (4).
3. The roof drainage structure for preventing water accumulation according to claim 2, characterized in that: The bottom edges of the roof panel (5) are located directly above the water-holding plate (2), and when it rains, rainwater slides down the surface of the roof panel (5).
4. The roof drainage structure for preventing water accumulation according to claim 2, characterized in that: The filter screen (9) has threaded holes at its left and right ends that are compatible with the positioning bolts (10). The filter screen (9) is placed at a preset position above the positioning plate (7). The positioning bolts (10) are slowly screwed into the threaded holes at both ends of the filter screen (9) and the corresponding threaded through holes (8) on the positioning plate (7). As the positioning bolts (10) are gradually tightened, the positioning plate (7) and the filter screen (9) are fitted and positioned.
5. A roof drainage structure for preventing water accumulation according to claim 4, characterized in that: A discharge port (18) is provided on one side of the water tank (6), the discharge port (18) penetrates one side of the water plate (2), and the right end of the inclined plate (11) is attached to the left side of the discharge port (18).
6. A roof drainage structure for preventing water accumulation according to claim 4, characterized in that: The water pipe (12) passes through the left side of the water-holding plate (2). The left side of the water-holding plate (2) has a hole that matches the diameter of the water pipe (12). After passing through the water-holding plate (2), the water pipe (12) continues to extend, and the end of the water pipe (12) extends into the interior of the water-holding tank (6).
7. A roof drainage structure for preventing water accumulation according to claim 4, characterized in that: A positioning rod (15) is fixedly installed on one side of the water-holding plate (2) by welding. A clamping block (16) is fixedly installed on the end of the positioning rod (15) away from the water-holding plate (2) by bolts. The clamping block (16) is located outside the water pipe (12). A threaded hole is opened on the upper side of the clamping block (16), and a fastening bolt (17) is installed in the internal thread of the threaded hole.