Sponge city rainwater collection and irrigation system
By using an inclined filter plate and cover design, combined with spring-loaded buckle connections, the problem of filter pore blockage caused by impurity accumulation is solved, achieving efficient filtration and simplified cleaning of the sponge city rainwater harvesting and irrigation system.
Patent Information
- Application Number
- CN202610014775.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-07
- Publication Date
- 2026-02-10
AI Technical Summary
In existing sponge city rainwater harvesting and irrigation systems, the accumulation of impurities on the filter plates causes clogging of the filter holes, affecting the rainwater filtration efficiency.
The first and second filter plates are installed at an angle, combined with the conical design of the cover and the spring buckle connection, which simplifies the installation or separation of the cover and the body, facilitates the cleaning of impurities, and achieves efficient filtration of rainwater.
It effectively prevents impurities from accumulating on the filter plate, keeps rainwater flowing smoothly, simplifies the impurity cleaning process, and improves filtration efficiency.
Smart Images

Figure CN121496986A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rainwater harvesting technology, specifically to a sponge city rainwater harvesting and irrigation system. Background Technology
[0002] Sponge city is a concept for urban stormwater management, aiming to make cities like sponges, possessing good "elasticity" in adapting to environmental changes and responding to natural disasters. When it rains, they absorb, store, infiltrate, and purify rainwater, and then "release" and utilize the stored water when needed. Rainwater harvesting and irrigation systems are a key component and specific technical means in sponge city construction. They concretize the sponge city concept, focusing on the collection, treatment, and reuse of rainwater, such as for irrigation of green spaces and landscapes, thereby achieving the recycling of water resources.
[0003] In the process of rainwater harvesting and irrigation in sponge cities, rainwater needs to be filtered after collection to separate impurities for subsequent use or discharge. Existing rainwater impurity removal methods typically employ multi-stage filter plates for layered filtration. However, since the filter plates are often fixed horizontally inside the rainwater collection tank, while this method achieves multi-stage filtration, as the amount of rainwater treated increases, impurities accumulate on the filter plates, increasing in volume. Simultaneously, the area covered by impurities on the filter plates expands with the increase in impurity generation, and impurities may even clog the filter pores, thus affecting rainwater filtration efficiency. Summary of the Invention
[0004] This invention provides a rainwater harvesting and irrigation system for sponge cities, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a sponge city rainwater harvesting and irrigation system, comprising a box body, a box cover movably mounted on the upper end of the box body, a plurality of fixing blocks evenly distributed on the lower end face of the box cover, a spring buckle for connecting the box body provided on the inner wall of the outer side of each fixing block, a first filter plate movably inserted into the inner wall of the box body, a second filter plate located below the first filter plate movably inserted into the inner wall of the box body, the first and second filter plates being installed inside the box body with the left side higher than the right side, support plates located below the first and second filter plates being provided on both the left and right sides of the inner wall of the box body, and baffles for limiting the movement distance of the spring buckles being provided at equal intervals on the outer wall of the upper end of the box body.
[0006] Optionally, the outer wall of the upper end of the box is equidistantly equipped with locking blocks located above the baffle. The front of the box is movably connected to a door located in front of the first filter plate and the second filter plate, and sealing strips are provided at the connection between the door and the box. A round rod located above the door is fixedly installed on the front of the box. A baffle is rotatably connected to the inner wall of the upper end of the round rod, and the rear end of the baffle is fixedly connected to the front of the box. A water outlet pipe located below the second filter plate is fixedly installed on the lower left side of the box.
[0007] Optionally, the inner wall of each locking block is movably inserted into the outer wall of the fixing block, the inner wall of the outer side of each locking block is connected through to the outer wall of the spring buckle, a magnetic suction piece is fixedly installed on the outer side of each locking block, and a protective cover located outside the spring buckle is magnetically connected to the side of the magnetic suction piece away from the locking block. An elastic rope for connecting the locking block is fixedly connected to the outer side of the protective cover.
[0008] Optionally, both the left and right ends of the first and second filter plates are placed on the top surface of the support plate, and the inner diameter of the filter holes on the first filter plate is smaller than that on the second filter plate.
[0009] Optionally, a horizontal plate is fixedly installed at the lower end of each of the baffles, and a telescopic rod is fixedly connected to the end of the horizontal plate away from the baffle. A sleeve rod is movably sleeved on the outer wall of the telescopic rod, and a movable component for connecting the sleeve rod is provided at the lower end of the telescopic rod. An installation plate is fixedly installed at the lower end of the sleeve rod, and the inner end of the installation plate is fixedly connected to the outer wall of the box.
[0010] Optionally, the movable component includes a lifting plate and a spring, one side of the lifting plate is fixedly connected to the lower end of the telescopic rod, the other side of the lifting plate is fixedly connected to the upper end of the spring, and the lower end of the spring is fixedly connected to the bottom wall of the sleeve rod.
[0011] Optionally, a side plate is fixedly installed on one side of the lifting plate, and the end of the side plate away from the lifting plate extends to the outside of the sleeve rod. A plug rod is movably inserted into the inner wall of the side plate, and extension plates located on both sides of the side plate are movably sleeved at both ends of the plug rod, and the inner end of the extension plate is fixedly connected to the outer wall of the sleeve rod.
[0012] Optionally, an anti-loss rope is fixedly installed at one end of the insertion rod, and the end of the anti-loss rope away from the insertion rod is fixedly connected to the outer wall of the sleeve rod.
[0013] The present invention has the following beneficial effects: 1. This sponge city rainwater harvesting and irrigation system, through the cooperation between the first filter plate, the second filter plate, the box body and the box cover, the first filter plate and the second filter plate are both installed in an inclined manner with the left side higher than the right side, so that impurities falling on the first filter plate and the second filter plate will roll, avoiding the obstruction of rainwater flow caused by impurities spreading flat on the filter plate and blocking the filter holes. In addition, the box cover adopts a conical setting to reduce the contact area between impurities in the rainwater and the box cover, thereby facilitating the removal of impurities from the rainwater.
[0014] 2. This sponge city rainwater harvesting and irrigation system utilizes the cooperation between the cover, the body, spring clips, and locking blocks. The spring clips connect the cover and the body, and the connection method of the spring clips and locking blocks simplifies the installation and separation of the cover and the body. This makes it easier to remove the cover from the body and clean the holes on the cover that are blocked by impurities, ensuring that rainwater can smoothly enter the interior of the body through the cover.
[0015] 3. This sponge city rainwater harvesting and irrigation system, through the cooperation between the box body, the first filter plate, the second filter plate, the round rod, the baffle plate and the box door, utilizes the setting of the baffle plate rotating on the round rod to realize the limiting function of the baffle plate on the box door. When the baffle plate separates from the box door, the box door can be opened and the first filter plate and the second filter plate can be taken out from the box body, thereby facilitating the cleaning of the impurities separated on the first filter plate and the second filter plate. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the water outlet pipe in the structure of the present invention; Figure 3 This is a schematic diagram of the first filter plate in the structure of the present invention; Figure 4 This is a schematic diagram of the baffle in the structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the spring clip in the structure of the present invention; Figure 6 In the structure of this invention Figure 5 An enlarged view of point A; Figure 7 This is a schematic diagram of the box cover in the structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the sleeve rod in the structure of the present invention; Figure 9 In the structure of this invention Figure 8 An enlarged schematic diagram of point B.
[0017] In the diagram: 1. Box body; 2. Box lid; 3. Fixing block; 4. Spring buckle; 5. First filter plate; 6. Second filter plate; 7. Support plate; 8. Baffle; 9. Locking block; 10. Box door; 11. Round rod; 12. Baffle plate; 13. Water outlet pipe; 14. Horizontal plate; 15. Telescopic rod; 16. Sleeve rod; 17. Movable component; 171. Lifting plate; 172. Spring; 18. Mounting plate; 19. Magnetic suction plate; 20. Protective cover; 21. Elastic rope; 22. Extension plate; 23. Insert rod; 24. Side plate; 25. Anti-loss rope. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Please see Figure 1 , Figure 4 and Figure 5 This invention provides a technical solution: a sponge city rainwater harvesting and irrigation system, including a box body 1. A box cover 2 is movably installed on the upper end of the box body 1. Due to the conical design of the box cover 2, impurities in the rainwater are difficult to accumulate on the box cover 2, thereby achieving the removal of impurities from the rainwater. Several fixing blocks 3 are evenly distributed on the lower end face of the box cover 2. The inner wall of the outer side of each fixing block 3 is provided with a spring buckle 4 for connecting the box body 1. A first filter plate 5 is movably inserted into the inner wall of the box body 1, and a second filter plate 6 located below the first filter plate 5 is movably inserted into the inner wall of the box body 1. The first filter plate 5 and the second filter plate 6 are both installed inside the box body 1 with the left side higher than the right side. Rainwater that has been removed by the box cover 2 falls to the second filter plate 6 after passing through the first filter plate 5. The inner diameter of the filter holes on the first filter plate 5 is larger than that on the second filter plate 6. Rainwater passing through the first filter plate 5 undergoes the first filtration. After the first filtration, the rainwater passes through the first filter plate 5 and then reaches the second filter plate 6 for the second filtration. The rainwater after the second filtration flows to the bottom of the box 1 after passing through the filter holes on the second filter plate 6. Furthermore, since the first filter plate 5 and the second filter plate 6 are placed at an angle with the left side higher than the right side, impurities in the rainwater will roll and accumulate on the right side after being blocked by the filter holes on the first filter plate 5 and the second filter plate 6. Support plates 7 are provided on both the left and right sides of the inner wall of the box 1, located below the first filter plate 5 and the second filter plate 6. Baffles 8 are provided at equal intervals on the outer wall of the upper end of the box 1 to limit the movement distance of the spring buckle 4.
[0020] The outer wall of the upper end of the box 1 is equidistantly equipped with locking blocks 9 located above the baffle 8. The front of the box 1 is movably connected to the door 10 located in front of the first filter plate 5 and the second filter plate 6, and the connection between the door 10 and the box 1 is provided with sealing strips. The front of the box 1 is fixedly installed with a round rod 11 located above the door 10. The inner wall of the upper end of the round rod 11 is rotatably connected with a baffle 12, and the rear end of the baffle 12 is fixedly connected to the front of the box 1. By rotating the baffle 12 on the round rod 11, the door 10 can be opened and the first filter plate 5 and the second filter plate 6 can be removed from the box 1. The impurities accumulated on one side of the first filter plate 5 and the second filter plate 6 can be cleaned. The lower left end of the box 1 is fixedly installed with a water outlet pipe 13 located below the second filter plate 6. The rainwater that has been filtered by the first filter plate 5 and the second filter plate 6 flows out to the outside of the box 1 from the water outlet pipe 13.
[0021] Please see Figure 2 , Figure 3 and Figure 7 The inner wall of each locking block 9 is movably inserted into the outer wall of the fixing block 3, and the inner wall of the outer side of each locking block 9 is connected through to the outer wall of the spring buckle 4. A magnetic suction piece 19 is fixedly installed on the outer side of each locking block 9. A protective cover 20 located outside the spring buckle 4 is magnetically connected to the side of the magnetic suction piece 19 away from the locking block 9. The protective cover 20 is removed from the magnetic suction piece 19, and the spring buckle 4 is pressed to move into the interior of the fixing block 3 until the spring buckle 4 is separated from the locking block 9, which facilitates the separation of the fixing block 3 and the locking block 9. An elastic rope 21 for connecting the locking block 9 is fixedly connected to the outer side of the protective cover 20.
[0022] The left and right ends of the first filter plate 5 and the second filter plate 6 are both placed on the top surface of the support plate 7. The inner diameter of the filter holes on the first filter plate 5 is smaller than the inner diameter of the filter holes on the second filter plate 6.
[0023] Please see Figure 6 , Figure 8 and Figure 9 Each baffle 8 has a horizontal plate 14 fixedly installed at its lower end. A telescopic rod 15 is fixedly connected to the end of the horizontal plate 14 away from the baffle 8. A sleeve rod 16 is movably sleeved on the outer wall of the telescopic rod 15. A movable component 17 for connecting the sleeve rod 16 is provided at the lower end of the telescopic rod 15. The movable component 17 is provided to connect the sleeve rod 16 and the telescopic rod 15. An installation plate 18 is fixedly installed at the lower end of the sleeve rod 16, and the inner end of the installation plate 18 is fixedly connected to the outer wall of the box 1. The installation plate 18 is provided to support the installation of the sleeve rod 16.
[0024] The movable component 17 includes a lifting plate 171 and a spring 172. One side of the lifting plate 171 is fixedly connected to the lower end of the telescopic rod 15, and the other side of the lifting plate 171 is fixedly connected to the upper end of the spring 172. The lower end of the spring 172 is fixedly connected to the bottom wall of the sleeve rod 16.
[0025] A side plate 24 is fixedly installed on one side of the lifting plate 171, and the end of the side plate 24 away from the lifting plate 171 extends to the outside of the sleeve rod 16. A plug rod 23 is movably inserted into the inner wall of the side plate 24. The two ends of the plug rod 23 are movably sleeved with extension plates 22 located on both sides of the side plate 24, and the inner end of the extension plate 22 is fixedly connected to the outer wall of the sleeve rod 16. Then, the plug rod 23 is pulled out from the side plate 24 and the extension plate 22. The spring 172 rebounds and drives the baffle 8 to move into the locking block 9 through the connection of the lifting plate 171, the telescopic rod 15, and the horizontal plate 14. At this time, the baffle 8 is inserted between the locking block 9 and the fixed block 3. The baffle 8 restricts the movement distance of the spring buckle 4, so that the spring buckle 4 is retracted into the fixed block 3. After the spring buckles 4 in all four directions are retracted into the fixed block 3, the box cover 2 can be removed from the box body 1, and the impurities blocking the through hole on the box cover 2 can be cleaned.
[0026] An anti-loss rope 25 is fixedly installed at one end of the insertion rod 23. The end of the anti-loss rope 25 away from the insertion rod 23 is fixedly connected to the outer wall of the sleeve rod 16. The anti-loss rope 25 serves to connect the insertion rod 23 and the sleeve rod 16.
[0027] In summary, this sponge city rainwater harvesting and irrigation system operates as follows: First, rainwater falls into the tank 1 through the through-hole on the tank cover 2. Because the tank cover 2 has a conical design, impurities in the rainwater are difficult to accumulate on it, thus removing impurities. Then, the rainwater, after being filtered through the tank cover 2, passes through the first filter plate 5 and falls to the second filter plate 6. Since the inner diameter of the filter holes on the first filter plate 5 is larger than that on the second filter plate 6, the rainwater passing through the first filter plate 5 undergoes a first... The rainwater, after the first filtration, passes through the first filter plate 5 and then reaches the second filter plate 6 for a second filtration. The rainwater from the second filtration flows through the filter holes on the second filter plate 6 to the bottom of the housing 1. Because the first filter plate 5 and the second filter plate 6 are placed at an angle, with the left side higher than the right, impurities in the rainwater, after being blocked by the filter holes on the first filter plate 5 and the second filter plate 6, will roll and accumulate on their inclined surfaces, accumulating on the right side before flowing out through the outlet pipe 13 to the outside of the housing 1. Finally, the housing cover 2 is cleaned periodically. First filter plate 5 and second filter plate 6, rotate baffle 12 on round rod 11, open box door 10 and remove first filter plate 5 and second filter plate 6 from box body 1. Then you can clean the impurities accumulated on one side of first filter plate 5 and second filter plate 6. Remove protective cover 20 from magnetic suction plate 19, press spring buckle 4 to move inward to fixed block 3 until spring buckle 4 separates from locking block 9. Then pull insertion rod 23 out from side plate 24 and extension plate 22, and use the rebound of spring 172 to sequentially pass through The connection of the lifting plate 171, telescopic rod 15, and horizontal plate 14 drives the baffle 8 to move into the locking block 9. At this time, the baffle 8 is inserted between the locking block 9 and the fixed block 3. The baffle 8 restricts the movement distance of the spring buckle 4, so that the spring buckle 4 is retracted into the fixed block 3. When the spring buckles 4 in all four directions are retracted into the fixed block 3, the box cover 2 can be removed from the box body 1. Then, the blockages in the through hole on the box cover 2 can be cleaned, so that rainwater can flow smoothly from the box cover 2 into the box body 1.
[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Moreover, 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.
[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sponge city rainwater harvesting and irrigation system, comprising a housing (1), characterized in that: The upper end of the box (1) is movably fitted with a box cover (2). Several fixing blocks (3) are evenly distributed on the lower end face of the box cover (2). The inner wall of the outer side of each fixing block (3) is provided with a spring buckle (4) for connecting the box (1). The inner wall of the box (1) is movably inserted with a first filter plate (5). The inner wall of the box (1) is movably inserted with a second filter plate (6) located below the first filter plate (5). The first filter plate (5) and the second filter plate (6) are both installed inside the box (1) with the left side higher than the right side. The left and right sides of the inner wall of the box (1) are provided with support plates (7) located below the first filter plate (5) and the second filter plate (6). The outer wall of the upper end of the box (1) is evenly provided with baffles (8) for limiting the movement distance of the spring buckle (4).
2. The sponge city rainwater harvesting and irrigation system according to claim 1, characterized in that: The outer wall of the upper end of the box (1) is equidistantly fitted with locking blocks (9) above the baffle (8). The front of the box (1) is movably connected with a door (10) located in front of the first filter plate (5) and the second filter plate (6). Sealing strips are provided at the connection between the door (10) and the box (1). A round rod (11) located above the door (10) is fixedly installed on the front of the box (1). A baffle (12) is rotatably connected to the inner wall of the upper end of the round rod (11). The rear end of the baffle (12) is fixedly connected to the front of the box (1). A water outlet pipe (13) located below the second filter plate (6) is fixedly installed on the lower left side of the box (1).
3. A sponge city rainwater harvesting and irrigation system according to claim 2, characterized in that: The inner wall of each of the locking blocks (9) is movably inserted into the outer wall of the fixing block (3), and the inner wall of the outer side of each of the locking blocks (9) is connected through to the outer wall of the spring buckle (4). A magnetic suction piece (19) is fixedly installed on the outer side of each of the locking blocks (9). A protective cover (20) located outside the spring buckle (4) is magnetically connected to the side of the magnetic suction piece (19) away from the locking block (9). An elastic rope (21) for connecting the locking block (9) is fixedly connected to the outer side of the protective cover (20).
4. A sponge city rainwater harvesting and irrigation system according to claim 1, characterized in that: The left and right ends of the first filter plate (5) and the second filter plate (6) are both placed on the top surface of the support plate (7). The inner diameter of the filter holes on the first filter plate (5) is smaller than the inner diameter of the filter holes on the second filter plate (6).
5. A sponge city rainwater harvesting and irrigation system according to claim 1, characterized in that: A horizontal plate (14) is fixedly installed at the lower end of each of the baffles (8). A telescopic rod (15) is fixedly connected to the end of the horizontal plate (14) away from the baffle (8). A sleeve rod (16) is movably sleeved on the outer wall of the telescopic rod (15). A movable component (17) for connecting the sleeve rod (16) is provided at the lower end of the telescopic rod (15). An installation plate (18) is fixedly installed at the lower end of the sleeve rod (16), and the inner end of the installation plate (18) is fixedly connected to the outer wall of the box (1).
6. A sponge city rainwater harvesting and irrigation system according to claim 5, characterized in that: The movable component (17) includes a lifting plate (171) and a spring (172). One side of the lifting plate (171) is fixedly connected to the lower end of the telescopic rod (15), and the other side of the lifting plate (171) is fixedly connected to the upper end of the spring (172). The lower end of the spring (172) is fixedly connected to the bottom wall of the sleeve rod (16).
7. A sponge city rainwater harvesting and irrigation system according to claim 6, characterized in that: A side plate (24) is fixedly installed on one side of the lifting plate (171), and the end of the side plate (24) away from the lifting plate (171) extends to the outside of the sleeve rod (16). A plug rod (23) is movably inserted into the inner wall of the side plate (24), and extension plates (22) located on both sides of the side plate (24) are movably sleeved at both ends of the plug rod (23). The inner end of the extension plate (22) is fixedly connected to the outer wall of the sleeve rod (16).
8. A sponge city rainwater harvesting and irrigation system according to claim 7, characterized in that: An anti-loss rope (25) is fixedly installed at one end of the insertion rod (23), and the end of the anti-loss rope (25) away from the insertion rod (23) is fixedly connected to the outer wall of the sleeve rod (16).
Citation Information
Patent Citations
Roof rainwater filtering and collecting device
CN208329046U
Rainwater collecting and irrigating device for municipal roads
CN216314532U
Sponge city rainwater collecting device
CN219033377U
Sponge city rainwater split-flow type drainage device
CN222500525U
Rainwater storage device for sponge city
CN222541571U