Rainwater infiltration collection filter device
Patent Information
- Application Number
- CN202522587121.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-05
AI Technical Summary
Existing rainwater infiltration collection and filtration devices suffer from rapid buildup of impurities in the filter core structure due to the high volume of impurities in the rainwater, shortening their lifespan and requiring frequent replacements, thus increasing operating costs.
Design a rainwater infiltration collection and filtration device, including a primary filtration chamber and a secondary filtration chamber. The filter screen initially intercepts large particles of impurities, and the filter element plate performs secondary filtration. The filter element plate can be easily replaced through a detachable locking plate and a spring-loaded ball locking structure, thus extending its service life.
It extends the service life of the filter plates, reduces the frequency of replacement, lowers equipment operating costs, and improves rainwater purification efficiency.
Smart Images

Figure CN224925683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater filtration, and in particular to a rainwater infiltration collection and filtration device. Background Technology
[0002] Rainwater infiltration, collection, and filtration are core components of a sponge city's rainwater management system. During urban rainfall, rainwater carries impurities such as sediment, suspended particles, organic pollutants, and heavy metals. Direct discharge into underground pipe networks or water bodies can lead to pipe blockages, water pollution, and groundwater contamination risks. Highly efficient rainwater filtration and collection devices can achieve preliminary purification of rainwater, providing a clean water source for subsequent infiltration, storage, or reuse. This is a key technological support for sponge cities to achieve their functions of "infiltration, retention, storage, purification, utilization, and drainage."
[0003] Currently, when rainwater infiltration collection and filtration devices are in use, the excessive impurities contained in the rainwater cause impurities to accumulate quickly on the filter core structure, thus shortening the service life of the filter core structure and requiring frequent replacement, which is not conducive to reducing operating costs.
[0004] Therefore, when the above-mentioned collection and filtration device filters rainwater, the rainwater contains a lot of impurities, which causes impurities to accumulate quickly on the filter core, thus shortening the service life of the filter core structure and requiring frequent replacement, which is not conducive to reducing the cost of use. A rainwater infiltration collection and filtration device with multiple filtration functions can be designed. Utility Model Content
[0005] To overcome the problem that when rainwater is filtered by a collection and filtration device, impurities tend to accumulate quickly on the filter core due to the large amount of impurities in the rainwater, thus shortening the service life of the filter core structure and requiring frequent replacement, which is not conducive to reducing operating costs.
[0006] The technical solution of this utility model is as follows: a rainwater infiltration collection and filtration device, including a water collection and filtration box, a primary filtration chamber at the left end of the water collection and filtration box, a secondary filtration chamber at the right end of the water collection and filtration box, a water collection box cover at the upper end of the water collection and filtration box cover, a seepage plate at the upper end of the water collection box cover, seepage holes on the seepage plate, a connecting frame inside the primary filtration chamber, a filter screen frame fixedly connected to the lower end of the connecting frame, a filter element plate inside the secondary filtration chamber, a sealing plate fixedly installed at the upper end of the filter element plate extending to the outside of the secondary filtration chamber, an arc-shaped groove at the upper end of the sealing plate, a connecting shaft rotatably connected to the upper end of the water collection and filtration box located behind the sealing plate, a locking plate fixedly connected to the connecting shaft, a movable groove at the front of the lower end of the locking plate, a spring fixedly installed inside the movable groove, and a locking ball fixedly installed at the lower end of the spring.
[0007] Preferably, the water collection tank cover can be rotated open for easy access to the internal filtration mechanism. The infiltration plate is for rainwater infiltration and is detachable for easy maintenance and unclogging. The filter screen can intercept larger impurities in rainwater, reducing the burden on subsequent filtration structures and is reusable. The recessed support block can rest on the support rod for easy disassembly and cleaning of debris inside the filter screen. The positioning post and positioning groove can stabilize the filter plate, ensuring stable secondary filtration. The locking plate can be rotated to switch the locking state of the filter plate, facilitating quick replacement of the filter plate. The spring can work with the locking ball to improve the stability of the locking plate and prevent it from automatically shifting, which would affect the locking operation.
[0008] Preferably, the water collection filter box is rotatably connected to the water collection tank cover, the seepage plate is detachably connected to the water collection tank cover, and the seepage holes are evenly distributed.
[0009] Preferably, an inlet is provided on the left side of the lower end of the water collection tank cover, the primary filtration chamber and the secondary filtration chamber are connected to each other, and an outlet is fixedly connected to the front end of the water collection filter box, which is connected to the secondary filtration chamber.
[0010] Preferably, support rods are fixedly installed on both the front and rear sides inside the preliminary filtration chamber, and recessed support blocks are fixedly installed on both the front and rear ends of the connecting frame, with the support rods and recessed support blocks being mutually compatible.
[0011] Preferably, positioning columns are fixedly installed on both the left and right sides inside the secondary filtration chamber, and positioning grooves are opened at both ends of the filter plate.
[0012] Preferably, the positioning column is slidably connected to the positioning groove, and the sealing plate is engaged with the water collection and filter box.
[0013] Preferably, the locking ball is slidably connected to the movable groove, and the locking ball and the arc-shaped groove are mutually adapted.
[0014] The beneficial effects of this utility model are: This rainwater infiltration collection and filtration device performs preliminary filtration of rainwater through a filter screen frame, intercepting larger impurities in the rainwater. The filter screen frame is easy to remove, clean, and reuse, which helps to reduce the burden on subsequent filtration structures in the collection and filtration device, extend the service life of the filter element plates, reduce replacement frequency, and reduce equipment operating costs. The filter element plates perform secondary filtration of rainwater, enhancing the purification level of rainwater. When the filter element plate needs to be replaced, the locking plate is rotated to move it away from the top of the sealing plate, making it easy to remove the filter element plate. After replacement, the locking plate is rotated again, and the spring drives the locking ball to tightly fit into the arc groove, thereby completing the replacement and locking of the filter element plate. This improves the convenience of disassembling and replacing the filter element plate structure of the filtration device. Attached Figure Description
[0015] Figure 1The diagram shown is a three-dimensional structural representation of a rainwater infiltration collection and filtration device according to this utility model. Figure 1 ; Figure 2 The diagram shown is a three-dimensional structural representation of a rainwater infiltration collection and filtration device according to this utility model. Figure 2 ; Figure 3 The diagram shown is a preliminary three-dimensional structural diagram of the filter chamber of this utility model; Figure 4 The diagram shown is a three-dimensional structural schematic of the secondary filtration chamber of this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of the locking plate of this utility model.
[0016] Explanation of reference numerals in the attached drawings: 1. Water collection and filter box; 2. Primary filtration chamber; 3. Secondary filtration chamber; 4. Water collection tank cover; 5. Drainage plate; 6. Drainage hole; 7. Connecting frame; 8. Filter screen frame; 9. Filter element plate; 10. Sealing plate; 11. Arc groove; 12. Locking plate; 13. Movable groove; 14. Spring; 15. Engaging ball; 16. Water inlet; 17. Water outlet; 18. Support rod; 19. Recessed support block; 20. Positioning post; 21. Positioning groove; 22. Connecting shaft. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Please see Figures 1-5 This utility model provides an embodiment: a rainwater infiltration collection and filtration device, including a water collection and filtration box 1, a primary filtration chamber 2 at the left end of the water collection and filtration box 1, a secondary filtration chamber 3 at the right end of the water collection and filtration box 1, a water collection box cover 4 at the upper end of the water collection box cover 1, a seepage plate 5 at the upper end of the water collection box cover 4, and seepage holes 6 on the seepage plate 5. A connecting frame 7 is provided inside the primary filtration chamber 2, and a filter screen frame 8 is fixedly connected to the lower end of the connecting frame 7. The secondary filtration chamber 3 is equipped with a filter element plate 9. The upper end of the filter element plate 9 extends to the outside of the secondary filtration chamber 3 and is fixedly installed with a sealing plate 10. The upper end of the sealing plate 10 is provided with an arc-shaped groove 11. The upper end of the water collection filter box 1 is rotatably connected to the rear side of the sealing plate 10 with a connecting shaft 22. A locking plate 12 is fixedly connected to the connecting shaft 22. The front side of the lower end of the locking plate 12 is provided with a movable groove 13. A spring 14 is fixedly installed inside the movable groove 13. A locking ball 15 is fixedly installed at the lower end of the spring 14.
[0019] Please see Figures 1-3In this embodiment, the water collection and filter box 1 is rotatably connected to the water collection box cover 4, the seepage plate 5 is detachably connected to the water collection box cover 4, the seepage holes 6 are evenly distributed, the water inlet 16 is provided on the left side of the lower end of the water collection box cover 4, the preliminary filtration chamber 2 and the secondary filtration chamber 3 are connected to each other, the front end of the water collection and filter box 1 is fixedly connected to the water outlet 17, the water outlet 17 is connected to the secondary filtration chamber 3, the front and rear sides of the interior of the preliminary filtration chamber 2 are fixedly installed with support rods 18, the front and rear ends of the connecting frame 7 are fixedly installed with recessed support blocks 19, the support rods 18 and the recessed support blocks 19 are mutually adapted, the rainwater is initially filtered through the filter screen frame 8, intercepting larger impurities in the rainwater, and the connection between the filter screen frame 8 and the collection and filtration device is relatively flexible, which is convenient to remove, clean and reuse, which helps to reduce the burden on the subsequent filtration structure of the collection and filtration device, extend the service life of the filter plate 9, reduce the replacement frequency and reduce the operating cost of the equipment.
[0020] Please see Figures 1-5 In this embodiment, positioning posts 20 are fixedly installed on both the left and right sides inside the secondary filtration chamber 3, and positioning grooves 21 are opened at both ends of the filter plate 9. The positioning posts 20 and positioning grooves 21 are slidably connected. The sealing plate 10 is engaged with the water collection and filtration box 1, and the engaging ball 15 is slidably connected with the movable groove 13. The engaging ball 15 and the arc groove 11 are mutually adapted. The rainwater after preliminary filtration flows into the secondary filtration chamber 3 and is further filtered by the filter plate 9 to enhance the purification degree of the rainwater. When the filter plate 9 needs to be replaced, the locking plate 12 is rotated to move it away from the upper end of the sealing plate 10 to facilitate the removal of the filter plate 9. After replacement, the locking plate 12 is rotated again until the movable groove 13 is aligned with the arc groove 11. The spring 14 drives the engaging ball 15 to tightly fit the arc groove 11, thereby completing the replacement and locking of the filter plate 9. This is beneficial to improving the convenience of disassembly and replacement of the filter plate 9 structure of the filtration device.
[0021] During operation, rainwater seeps in through the infiltration hole 6 and enters the filter frame 8 inside the primary filtration chamber 2 through the inlet 16. The filter frame 8 performs preliminary filtration of the rainwater, intercepting larger impurities in the rainwater. The connection between the filter frame 8 and the collection and filtration device is relatively flexible, making it easy to remove, clean, and reuse. The rainwater after preliminary filtration flows into the secondary filtration chamber 3 and undergoes secondary filtration through the filter plate 9, enhancing the purification level of the rainwater. When the filter plate 9 needs to be replaced, the locking plate 12 is rotated to move it away from the top of the sealing plate 10, making it easy to remove the filter plate 9. After replacement, the locking plate 12 is rotated again until the movable groove 13 aligns with the arc groove 11. The spring 14 drives the locking ball 15 to tightly fit the arc groove 11, thereby completing the replacement and locking of the filter plate 9.
[0022] Through the above steps, the filter frame 8 performs preliminary filtration of rainwater, intercepting larger impurities in the rainwater. The connection between the filter frame 8 and the collection and filtration device is relatively flexible, making it easy to remove, clean, and reuse. This helps to reduce the burden on the subsequent filtration structure of the collection and filtration device. It solves the problem that when the collection and filtration device filters rainwater, the large amount of impurities in the rainwater causes impurities to accumulate quickly on the filter core, thus shortening the service life of the filter core structure and requiring frequent replacement, which is not conducive to reducing operating costs.
Claims
1. A rainwater infiltration collection and filtration device, comprising a water collection and filtration box (1), characterized in that: A primary filtration chamber (2) is provided at the left end of the water collection and filtration box (1), and a secondary filtration chamber (3) is provided at the right end of the water collection and filtration box (1). A water collection box cover (4) is provided at the top of the water collection box (1), and a seepage plate (5) is provided at the top of the water collection box cover (4). Seepage holes (6) are provided on the seepage plate (5). A connecting frame (7) is provided inside the primary filtration chamber (2), and a filter screen frame (8) is fixedly connected to the lower end of the connecting frame (7). A filter element plate (9) is provided inside the secondary filtration chamber (3). (9) extends to the outer side of the secondary filtration chamber (3) and is fixedly installed with a sealing plate (10). The upper end of the sealing plate (10) is provided with an arc groove (11). The upper end of the water collection filter box (1) is located on the rear side of the sealing plate (10) and is rotatably connected with a connecting shaft (22). A locking plate (12) is fixedly connected on the connecting shaft (22). A movable groove (13) is provided on the front side of the lower end of the locking plate (12). A spring (14) is fixedly installed inside the movable groove (13). A locking ball (15) is fixedly installed at the lower end of the spring (14).
2. The rainwater infiltration collection and filtration device according to claim 1, characterized in that: The water collection filter box (1) is rotatably connected to the water collection box cover (4), the seepage plate (5) is detachably connected to the water collection box cover (4), and the seepage holes (6) are evenly distributed.
3. The rainwater infiltration collection and filtration device according to claim 2, characterized in that: A water inlet (16) is provided on the left side of the lower end of the water collection tank cover (4). The primary filtration chamber (2) and the secondary filtration chamber (3) are connected to each other. The front end of the water collection filter box (1) is fixedly connected to the water outlet (17), which is connected to the secondary filtration chamber (3).
4. A rainwater infiltration collection and filtration device according to claim 3, characterized in that: Support rods (18) are fixedly installed on both the front and back sides of the primary filtration chamber (2), and recessed support blocks (19) are fixedly installed on both the front and back ends of the connecting frame (7). The support rods (18) and the recessed support blocks (19) are mutually compatible.
5. A rainwater infiltration collection and filtration device according to claim 1, characterized in that: Positioning columns (20) are fixedly installed on both the left and right sides inside the secondary filtration chamber (3), and positioning grooves (21) are opened at both the left and right ends of the filter plate (9).
6. A rainwater infiltration collection and filtration device according to claim 5, characterized in that: The positioning column (20) is slidably connected to the positioning groove (21), and the sealing plate (10) is engaged with the water collection filter box (1).
7. A rainwater infiltration collection and filtration device according to claim 1, characterized in that: The locking ball (15) is slidably connected to the movable groove (13), and the locking ball (15) is adapted to the arc groove (11).
