A device for sponge city rainwater collection and purification
By introducing an electric push rod driven cleaning mechanism and purification components into the rainwater harvesting and purification device for sponge cities, the problem of garbage accumulation and blockage has been solved, realizing automatic garbage collection and convenient cleaning, and improving the device's operational capacity and maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGLUO UNIV
- Filing Date
- 2025-04-24
- Publication Date
- 2026-06-05
AI Technical Summary
In existing sponge city rainwater harvesting and purification devices, the garbage intercepted during the filtration process tends to accumulate in the filter media layer or pipes, leading to a decrease in filtration efficiency or even system blockage.
A device was designed that includes a permeable plate, a filter box, a cleaning mechanism, a purification component, and a collection component. An electric push rod drives a horizontal plate to move a cleaning brush to clean up the garbage, and a flip plate pours the garbage into a collection box. At the same time, a purification tank and a dosing pipe spray liquid for purification. Combined with a pump, the liquid is mixed with rainwater and the purified water is promptly diverted.
It enables automatic collection and convenient cleaning of waste, improves the continuous operation and maintenance efficiency of the device, avoids the problem of waste accumulation and blockage in traditional devices, and ensures the continuous and efficient operation of the system.
Smart Images

Figure CN224325159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater harvesting technology, specifically a device for rainwater collection and purification in sponge cities. Background Technology
[0002] Sponge cities are a new urban development model that uses ecological design to make cities more resilient in adapting to environmental changes and responding to natural disasters. Its core lies in effectively alleviating urban flooding, improving water quality, and increasing water resource utilization through the infiltration, retention, purification, and resource utilization of rainwater. Rainwater harvesting and purification devices are one of the key infrastructure components for achieving these goals in sponge city construction.
[0003] Currently, most rainwater collection and purification devices for sponge cities employ a combination of graded filtration, sedimentation, and simple chemical treatment. For example, large particles are initially intercepted by a permeable plate, suspended solids are removed by the filter media layer in the filter box, and finally, water is purified through chemical disinfection or biodegradation.
[0004] However, some purification devices trap garbage (such as fallen leaves, silt, etc.) during the filtration process, which can easily accumulate in the filter layer or pipes, leading to a decrease in filtration efficiency or even system blockage, and thus causing urban flooding. To address this, this utility model proposes a device for rainwater collection and purification in sponge cities to solve the shortcomings of the existing technology. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a device for rainwater collection and purification in sponge cities, which solves the problem that some purification devices tend to accumulate waste in the filter layer or pipes during the filtration process, leading to decreased filtration efficiency or even system blockage.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a device for rainwater collection and purification in sponge cities, comprising a permeable plate, a filter box at the bottom of the permeable plate, a cleaning mechanism on one side of the filter box, a connecting plate on the side of the filter box away from the permeable plate, a filter plate in the middle of the connecting plate, a purification component on the side of the connecting plate away from the filter box, and a purification box on the rear side of the filter box.
[0007] The cleaning mechanism includes an electric push rod fixed to one side of the filter box. A transverse plate is fixed to one end of the electric push rod near the filter box. Multiple cleaning brushes evenly distributed horizontally are fixed inside the transverse plate. A top plate is fixed to the side of the transverse plate away from the electric push rod. Fixed blocks are fixed at both ends of the filter box away from the electric push rod. Rotating blocks are rotatably connected to the two fixed blocks facing each other. A flip plate is fixed to the side of the two rotating blocks near the electric push rod. A collection assembly is provided on the side of the connecting plate away from the electric push rod.
[0008] Preferably, the purification assembly includes a purification tank, which is fixed to the side of the connecting plate away from the filter box. A rectangular block is fixedly connected inside the purification tank. A dosing pipe is fixed to the side of the rectangular block near the connecting plate. Multiple nozzles evenly distributed vertically are fixed to the outer periphery of the dosing pipe. A delivery pipe is fixed to the side of the dosing pipe near the rectangular block. A delivery pump is fixed to the end of the delivery pipe away from the rectangular block. The end of the delivery pump away from the delivery pipe is fixedly connected to the bottom of the purification box. Extraction components are provided on both the left and right sides of the purification tank.
[0009] Preferably, the collecting component includes a collecting frame, which is slidably connected to the side of the connecting plate away from the electric push rod. The collecting frame is fitted with fixing hoops on both the front and rear sides, and connecting blocks are provided on the left and right sides of the two fixing hoops. Fastening bolts are threadedly connected to the interior of two adjacent connecting blocks.
[0010] Preferably, the extraction assembly includes an extraction pump, which is fixed to one side of the purification tank. A water extraction pipe is fixed to the end of the extraction pump near the purification tank, and a delivery pipe is fixed to the end of the extraction pump away from the purification tank.
[0011] Preferably, the cleaning brush is slidably connected at one end away from the transverse plate to the side of the connecting plate near the filter box, and the top plate is slidably connected at one end away from the transverse plate to the side of the flip plate near the filter box.
[0012] Preferably, one of the fixing clamps is fixedly connected to the side of the connecting plate away from the filter box.
[0013] Preferably, the end of the water pump away from the pump is fixed inside the purification tank, and the end of the drug delivery pipe near the dosing pipe passes through the interior of the rectangular block and is connected to the dosing pipe.
[0014] This invention provides a device for rainwater collection and purification in sponge cities. It has the following beneficial effects:
[0015] 1. This utility model uses an electric push rod to drive the horizontal moving plate to move horizontally, which drives the cleaning brush to sweep the filtered garbage along the top of the connecting plate. At the same time, the top plate pushes the flipping plate to pour the garbage into the collection box. Combined with the detachable design of the fixing hoop and fastening bolt, it realizes the automatic collection and convenient cleaning of garbage, effectively solving the problems of garbage accumulation and blockage and cumbersome manual cleaning in traditional rainwater filtration devices, and improving the continuous operation capability and maintenance efficiency of the device.
[0016] 2. This utility model uses a delivery pump to evenly spray the liquid medicine in the purification tank into the rainwater in the purification bucket through the dosing pipe and nozzle. Combined with the extraction pump, the purified water is quickly discharged through the water extraction pipe and delivery pipe, thus realizing the mixing of liquid medicine and rainwater and the timely diversion of purified water. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present utility model;
[0018] Figure 2 This is a schematic diagram of the connecting plate of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the collection frame of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the dosing tube of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the drug delivery tube of this utility model.
[0022] The components are as follows: 1. Permeable plate; 2. Filter box; 3. Cleaning mechanism; 301. Electric push rod; 302. Horizontal moving plate; 303. Cleaning brush; 304. Top plate; 305. Tilting plate; 306. Rotating block; 307. Fixing block; 4. Collection assembly; 401. Collection frame; 402. Fixing hoop; 403. Connecting block; 404. Fastening bolt; 5. Purification assembly; 501. Purification tank; 502. Dosing pipe; 503. Nozzle; 504. Rectangular block; 505. Drug delivery pipe; 506. Delivery pump; 6. Extraction assembly; 601. Extraction pump; 602. Delivery pipe; 603. Water extraction pipe; 7. Purification box; 8. Connecting plate; 9. Filter plate. Detailed Implementation
[0023] The technical solutions in 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.
[0024] Please see the appendix Figure 1 - Appendix Figure 2 This utility model provides a device for rainwater collection and purification in sponge cities, including a permeable plate 1, a filter box 2 at the bottom of the permeable plate 1, a cleaning mechanism 3 on one side of the filter box 2, a connecting plate 8 on the side of the filter box 2 away from the permeable plate 1, a filter plate 9 in the middle of the connecting plate 8, a purification component 5 on the side of the connecting plate 8 away from the filter box 2, and a purification box 7 on the rear side of the filter box 2.
[0025] Specifically, the permeable board 1 is a ground drainage board made of concrete and laid at the edge of the road. The filter box 2 is mainly used to filter rainwater and domestic waste and natural ecological waste mixed by rainwater. The connecting plate 8 is mainly used to connect the filter box 2 to the purification component 5 at the bottom. The filter plate 9 in the middle of the connecting plate 8 is used to filter rainwater and garbage. The purification box 7 contains a coagulant made of polyaluminum chloride, which is used to remove suspended solids and organic matter in the water.
[0026] Please see the appendix Figure 2 The cleaning mechanism 3 includes an electric push rod 301, which is fixed to one side of the filter box 2. A transverse plate 302 is fixed to one end of the electric push rod 301 near the filter box 2. Multiple cleaning brushes 303 are fixed inside the transverse plate 302 and are evenly distributed horizontally. The end of the cleaning brush 303 away from the transverse plate 302 is slidably connected to the side of the connecting plate 8 near the filter box 2. A top plate 304 is fixed to the side of the transverse plate 302 away from the electric push rod 301. Fixing blocks 307 are fixed at both ends of the side of the filter box 2 away from the electric push rod 301. Rotating blocks 306 are rotatably connected to the two fixing blocks 307 facing each other. A flip plate 305 is fixed to the side of the two rotating blocks 306 near the electric push rod 301. The side of the top plate 304 away from the transverse plate 302 is slidably connected to the side of the flip plate 305 near the filter box 2. A collection component 4 is provided on the side of the connecting plate 8 away from the electric push rod 301.
[0027] Specifically, the electric push rod 301 is a short-stroke electric push rod, model La12, which is connected to the transverse plate 302. After the electric push rod 301 is started, it can control the transverse plate 302 to move horizontally. Multiple cleaning brushes 303 made of plastic are fixed at the bottom of the transverse plate 302. The cleaning brushes 303 are connected to the connecting plate 8. When the transverse plate 302 moves, the cleaning brushes 303 will move horizontally along the connecting plate 8, thereby concentrating the distributed garbage. The top plate 304 mainly contacts the tilting plate 305, pushing the tilting plate 305 to rotate. The tilting plate 305 is connected to the rotating block 306, and the rotating block 306 and the fixed block 307 form a rotating pair, so that the tilting plate 305 can rotate through the rotating block 306.
[0028] Please see the appendix Figure 4The purification component 5 includes a purification tank 501, which is fixed to the side of the connecting plate 8 away from the filter box 2. A rectangular block 504 is fixedly connected inside the purification tank 501. A dosing pipe 502 is fixed to the side of the rectangular block 504 near the connecting plate 8. Multiple nozzles 503 are fixed to the outer periphery of the dosing pipe 502 in a vertically evenly distributed manner. A delivery pipe 505 is fixed to the side of the dosing pipe 502 near the rectangular block 504. A delivery pump 506 is fixed to the end of the delivery pipe 505 away from the rectangular block 504. The outer periphery of the delivery pipe 505 near the dosing pipe 502 passes through the interior of the rectangular block 504 and is connected to the dosing pipe 502. The end of the delivery pump 506 away from the delivery pipe 505 is fixedly connected to the bottom of the purification box 7. Extraction components 6 are provided on both the left and right sides of the purification tank 501.
[0029] Specifically, the purification tank 501 is a cross-shaped four-way bucket, with one end fixed to the middle of the connecting plate 8. A rectangular block 504 is set inside, which is used to fix the dosing pipe 502. The dosing pipe 502 has a nozzle 503 fixed on its outer periphery for spraying purification liquid from multiple directions. The dosing pipe 502 is connected to the delivery pump 506 through the delivery pipe 505. The delivery pump 506 is fixed to the bottom of the purification box 7. The purification box 7 stores purification liquid for purifying rainwater.
[0030] Please see the appendix Figure 2 - Appendix Figure 3 The collection component 4 includes a collection frame 401, which is slidably connected to the side of the connecting plate 8 away from the electric push rod 301. The collection frame 401 is fitted with fixing hoops 402 on both the front and rear sides. One of the fixing hoops 402 is fixedly connected to the side of the connecting plate 8 away from the filter box 2. The left and right sides of the two fixing hoops 402 are provided with connecting blocks 403. The two adjacent connecting blocks 403 are internally threaded with fastening bolts 404.
[0031] Specifically, the collection frame 401 is used to collect household waste and natural ecological waste. The collection frame 401 is fixed to one side of the connecting plate 8 by fixing hoops 402. One of the fixing hoops 402 is fixed to the bottom of the connecting plate 8. Connecting blocks 403 are provided on both sides of the two fixing hoops 402. After the two adjacent connecting blocks 403 are connected by fastening bolts 404, the two fixing hoops 402 can be connected to each other, thereby fixing the collection frame 401. The top of the collection frame 401 is also connected to one side of the connecting plate 8 by fastening bolts 404.
[0032] Please see the appendix Figure 4The extraction component 6 includes an extraction pump 601, which is fixed to one side of the purification tank 501. A water suction pipe 603 is fixed to one end of the extraction pump 601 near the purification tank 501. The end of the water suction pipe 603 away from the extraction pump 601 is fixed to the inside side of the purification tank 501. A delivery pipe 602 is located at a height of one end of the extraction pump 601 away from the purification tank 501.
[0033] Specifically, the extraction pump 601 is fixed to one side of the purification tank 501. The purified stored water is extracted through the water extraction pipe 603 and then transported to other parts through the delivery pipe 602 for recycling.
[0034] Working principle: During rainfall, road water flows towards the infiltration plate 1. The rainwater passing through the infiltration plate 1 directly enters the filter box 2. After entering the filter box 2, the rainwater is filtered again by the filter plate 9 in the middle of the connecting plate 8, intercepting the mixed domestic waste and natural ecological waste into the filter box 2. After the rainwater enters the purification tank 501, the delivery pump 506 is activated to draw out the purification solution inside the purification tank 7. The solution is then transported to the dosing pipe 502 through the delivery pipe 505, and then sprayed out by multiple nozzles 503, mixing the rainwater with the solution. At the same time, the extraction pump 601 is activated to extract the stored water inside the purification tank 501 through the delivery pipe 602 to prevent flooding.
[0035] After the rainfall ends, the electric push rod 301 is activated, which controls the horizontal plate 302 to move inside the filter box 2. At this time, the cleaning brush 303 at the bottom of the horizontal plate 302 will move along the top of the connecting plate 8 to collect the intercepted garbage. When the horizontal plate 302 moves to the other side of the filter box 2, the top plate 304 applies a force to the tilting plate 305, causing the tilting plate 305 to rotate, so that the collected garbage enters the collection frame 401 to complete the collection.
[0036] When staff need to clean the garbage collected in the collection box 401, they only need to turn the fastening bolt 404 to separate the two connecting blocks 403, which will separate the fixing hoop 402. Then, the collection box 401 can be separated from the connecting plate 8 and the collection box 401 can be removed.
[0037] 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 alterations 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 device for rainwater collection and purification in sponge cities, comprising a permeable plate (1), characterized in that, A filter box (2) is provided at the bottom of the permeation plate (1). A cleaning mechanism (3) is provided on one side of the filter box (2). A connecting plate (8) is provided on the side of the filter box (2) away from the permeation plate (1). A filter plate (9) is provided in the middle of the connecting plate (8). A purification component (5) is provided on the side of the connecting plate (8) away from the filter box (2). A purification box (7) is provided on the rear side of the filter box (2). The cleaning mechanism (3) includes an electric push rod (301), which is fixed to one side of the filter box (2). A transverse plate (302) is fixed to one end of the electric push rod (301) near the filter box (2). Multiple cleaning brushes (303) are fixed inside the transverse plate (302) and are evenly distributed horizontally. A top plate (304) is fixed to the side of the transverse plate (302) away from the electric push rod (301). Fixing blocks (307) are fixed at both ends of the side of the filter box (2) away from the electric push rod (301). Rotating blocks (306) are rotatably connected to the two fixing blocks (307) facing each other. A flip plate (305) is fixed to the side of the two rotating blocks (306) near the electric push rod (301). A collection component (4) is provided on the side of the connecting plate (8) away from the electric push rod (301).
2. The device for rainwater collection and purification in sponge cities according to claim 1, characterized in that, The purification component (5) includes a purification tank (501), which is fixed to the side of the connecting plate (8) away from the filter box (2). A rectangular block (504) is fixedly connected inside the purification tank (501). A dosing pipe (502) is fixed to the side of the rectangular block (504) near the connecting plate (8). Multiple nozzles (503) are fixed to the outer periphery of the dosing pipe (502) in a vertically evenly distributed manner. A delivery pipe (505) is fixed to the side of the dosing pipe (502) near the rectangular block (504). A delivery pump (506) is fixed to the end of the delivery pipe (505) away from the rectangular block (504). The end of the delivery pump (506) away from the delivery pipe (505) is fixedly connected to the bottom of the purification box (7). Extraction components (6) are provided on both the left and right sides of the purification tank (501).
3. The device for rainwater collection and purification in sponge cities according to claim 1, characterized in that, The collecting component (4) includes a collecting frame (401), which is slidably connected to the side of the connecting plate (8) away from the electric push rod (301). The collecting frame (401) is fitted with fixing hoops (402) on both the front and rear sides. Connecting blocks (403) are provided on the left and right sides of the two fixing hoops (402). Fastening bolts (404) are threadedly connected inside the two adjacent connecting blocks (403).
4. The device for rainwater collection and purification in sponge cities according to claim 2, characterized in that, The extraction assembly (6) includes an extraction pump (601), which is fixed to one side of the purification tank (501). A water extraction pipe (603) is fixed to one end of the extraction pump (601) near the purification tank (501), and a delivery pipe (602) is attached to the other end of the extraction pump (601) away from the purification tank (501).
5. The device for rainwater collection and purification in sponge cities according to claim 1, characterized in that, The cleaning brush (303) is slidably connected to the side of the connecting plate (8) near the filter box (2) at one end away from the transverse plate (302), and the top plate (304) is slidably connected to the side of the flip plate (305) near the filter box (2) at one end away from the transverse plate (302).
6. The device for rainwater collection and purification in sponge cities according to claim 3, characterized in that, One of the fixing hoops (402) is fixedly connected to the side of the connecting plate (8) away from the filter box (2).
7. The device for rainwater collection and purification in sponge cities according to claim 4, characterized in that, The end of the water pump (603) away from the pump (601) is fixed inside the purification tank (501), and the outer periphery of the drug delivery pipe (505) near the drug dosing pipe (502) passes through the interior of the rectangular block (504) and is connected to the drug dosing pipe (502).