A sponge city rainwater collection sprinkling system

Abstract

This invention discloses a sponge city rainwater harvesting and irrigation system, including a water tank. Two symmetrical limiting grooves are formed on both sides of the top of the water tank, and hydraulic cylinders are installed within these grooves. A cover is connected between the telescopic ends of the hydraulic cylinders. The beneficial effects are as follows: Through the design of the bidirectional pump, the guide pipe, and the main pipe, after the main pipe has finished collecting rainwater, the bidirectional pump can be controlled to back-pump the rainwater. Simultaneously, a solenoid valve opens, allowing water to be discharged from one end of the main pipe. After the solenoid valve closes, the rainwater, under pressure, will be sprayed out through the inlet pipe and the collection box, achieving cleaning of the collection box and effectively preventing impurities from clogging the device. The hydraulic cylinders within the limiting grooves can lift the cover, placing the purification box between the cover and the water tank, facilitating replacement and cleaning operations by staff.

Description

Technical Field

[0001] This invention relates to the field of rainwater harvesting and irrigation systems, specifically to a sponge city rainwater harvesting and sprinkler irrigation system. Background Technology

[0002] Sponge cities are a new generation of urban stormwater management concepts. They have good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. They are also known as water-resilient cities. With the acceleration of urbanization, the problem of urban water shortage is becoming increasingly serious. As a clean water source, rainwater plays a very important role in environmental protection and water resource utilization. Therefore, collecting, purifying, storing and reusing rainwater is an effective solution to cope with natural disasters caused by rainwater and to solve the problem of urban water shortage.

[0003] Existing sponge city rainwater harvesting and irrigation systems collect rainwater for irrigation, alleviating urban water pressure. While these methods achieve rainwater collection, impurities in the rainwater adhere to the inner walls of the collection pipes during long-term collection, leading to blockages. The sealed structure also hinders cleaning, resulting in a short pipe lifespan. Furthermore, rainwater collection requires filtration, purification, and storage, but the fixed structure of the filters makes cleaning and replacement difficult, resulting in poor filtration efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a sponge city rainwater harvesting and sprinkler irrigation system in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A sponge city rainwater harvesting and sprinkler system includes a water tank. Two symmetrically positioned limiting grooves are formed on both sides of the top of the water tank. Hydraulic cylinders are installed within the limiting grooves. A cover connects the telescopic ends of the hydraulic cylinders. Two bidirectional pumps are symmetrically arranged on both sides of the cover. One end of each bidirectional pump is connected to a guide pipe. A main pipe is installed at the bottom of the guide pipe. Three inlet pipes are installed at the top of the main pipe. A water collection box is connected to the top of each inlet pipe. A water collection hopper is arranged at the bottom of the water collection box. A guide plate is arranged around the center of the water collection box. The water collection hopper contains… A sieve plate is installed at the top, and a connecting pipe is provided at the other end of the bidirectional pump. A purification box is provided at the bottom end of the connecting pipe at the bottom end of the cover. Four limiting slide rails are symmetrically installed on the two side walls of the purification box. A drawer is provided between every two limiting slide rails. A filter plate is fixed in the middle of the upper drawer, and an activated carbon plate is provided in the middle of the lower drawer. Two water pumps are symmetrically installed at the bottom of the water tank. The outlet end of the water pump is connected to a second main pipe. Solenoid valves are provided at the ends of both the first and second main pipes away from the water tank.

[0006] Furthermore, three water supply pipes are installed at the top of the main pipe, and an electric turntable is connected to the top of the water supply pipes. Two horizontal plates are symmetrically arranged on both sides of the electric turntable. A pressure nozzle is provided on the two opposite side walls of the horizontal plates. A pressure nozzle is provided at the end of the horizontal plate away from the electric turntable. An emergency cover is installed in the middle of the top of the cover, and a connecting pipe is provided at the bottom of the emergency cover.

[0007] By adopting the above technical solution, the design of the second main pipe facilitates the transportation of stored rainwater for irrigation and other purposes, thus realizing the collection and utilization of rainwater by the device.

[0008] Furthermore, the water supply pipe is inserted into the main pipe, the electric turntable is rotatably connected to the water supply pipe, and the horizontal plate is inserted into the electric turntable.

[0009] By adopting the above technical solution, the design of the main pipe 2 in conjunction with the water supply pipe facilitates the supply of water to the first and second pressurized nozzles through the flexible hose, so as to facilitate the irrigation function of the device. The design of the electric turntable facilitates the horizontal plate to rotate 120° in the horizontal direction, effectively ensuring the irrigation range of the first and second pressurized nozzles.

[0010] Furthermore, the first and second pressurized nozzles are connected to the water supply pipe via flexible hoses, the emergency cover is threadedly connected to the cover body, and the connecting pipe passes through the cover body.

[0011] By adopting the above technical solution, the design of the emergency cover and the connecting pipe facilitates the extraction and use of water in the water tank in emergency situations.

[0012] Furthermore, the fixed end of the hydraulic cylinder is connected to the limiting groove screw, the telescopic end of the hydraulic cylinder is connected to the cover screw, and the bidirectional pump is connected to the cover screw.

[0013] By adopting the above technical solution, the hydraulic cylinder drives the cover to move upward, thereby lifting the cover to facilitate the removal and replacement of the two drawers on the purification box, and at the same time, facilitates the connection of external pipes to the threaded mounting head. The bidirectional pump back-pumps the liquid to flush the main pipe.

[0014] Furthermore, one end of the bidirectional pump is inserted into the guide pipe, and the other end of the bidirectional pump is inserted into the connecting pipe, with a threaded mounting head connected to one end of the connecting pipe.

[0015] By adopting the above technical solution, the design of the bidirectional pump can both pump and store rainwater in the forward direction and facilitate the pumping and flushing of water in the reverse direction.

[0016] Furthermore, the guide pipe is connected to the main pipe, the inlet pipe is connected to the main pipe, and the water collection box is connected to the inlet pipe.

[0017] By adopting the above technical solution, the design of the guide pipe facilitates the centralized storage of rainwater in the main pipe, and the water collection box facilitates the collection of rainwater.

[0018] Furthermore, the guide plate is screwed to the water collection box, the sieve plate is screwed to the water collection box, and the purification box is screwed to the cover.

[0019] By adopting the above technical solution, the guide plate, in conjunction with the water collection hopper design, facilitates the collection of rainwater into the main pipe.

[0020] Furthermore, the limiting slide rail is screwed to the purification box, the drawer is screwed to the sliding block of the limiting slide rail, and the filter plate and the activated carbon plate are both connected to the drawer slot.

[0021] By adopting the above technical solution, the design of the limiting slide rail facilitates the pulling out of the two drawers, so as to clean and replace the filter plate or activated carbon plate inside the drawers.

[0022] Furthermore, the water pump is screwed to the water tank, the outlet of the water pump is plugged into the second main pipe, and the solenoid valve is flanged to both the first main pipe and the second main pipe.

[0023] By adopting the above technical solution, the water pump draws rainwater into the second main pipe for spray irrigation. The design of the solenoid valve on the first main pipe facilitates the diversion of rainwater during the initial collection of rainwater and also facilitates the flushing of the first main pipe. After it is closed, it facilitates the flushing of the inlet pipe and the water collection box. The design of the solenoid valve on the second main pipe facilitates the spray irrigation or direct irrigation of the water in the water tank.

[0024] The specific working principle is as follows: When using the device, it needs to be installed in a suitable location and connected to an external power supply. During rainwater collection, the design of multiple collection boxes effectively collects rainwater. Combined with the sieve plate design, it effectively prevents large debris such as fallen leaves from entering the device. After the rainwater flows through the collection hopper and inlet pipe into the main pipe, the solenoid valve opens, diverting the initial rainwater flow and preventing impurities in the initial rainwater from affecting the quality of subsequent rainwater storage. After the rainwater diversion is complete, the solenoid valve of the main pipe closes, and the bidirectional pump starts working. The bidirectional pump draws the collected rainwater through the guide pipe into the purification tank. When the rainwater passes through the filter plate, the filter plate removes finer impurities. Combined with the adsorption and purification by the activated carbon plate, the water tank effectively purifies and stores the rainwater. In rainless weather, the pump operates, drawing water from the tank into the main pipe, which then directly delivers it through the water pipe to the two pressurized nozzles on the two horizontal plates. This system enables spray irrigation around the device using two pressurized nozzles. Combined with an electric turntable, the horizontal plate can rotate 120° horizontally, effectively ensuring the irrigation range for surrounding crops. The solenoid valve at one end of the main pipe facilitates large-scale irrigation of farmland, ensuring flexibility during use. When replacing the filter plate and activated carbon plate, the two hydraulic cylinders move upwards synchronously, lifting the cover and allowing the two drawers to be pulled out for cleaning. The threaded mounting head design facilitates connecting the external water pipe to the connecting pipe, enabling the bidirectional pump to draw clean water for cleaning the main pipe. When the solenoid valve is open, the main pipe is cleaned; when it is closed, water is sprayed upwards through the inlet pipe and the water collection box, cleaning the collection box and water hopper, effectively preventing impurities from accumulating in the main pipe and obstructing water flow.

[0025] The beneficial effects of this invention are as follows: 1. Through the design of bidirectional pump, guide pipe and main pipe 1, after the rainwater is collected in main pipe 1, the bidirectional pump can be controlled to pump the rainwater back. At the same time, the solenoid valve opens, and the water for rinsing main pipe 1 can be discharged from one end of main pipe 1. After the solenoid valve closes, the rainwater will be sprayed out through the inlet pipe and the water collection box under pressure, realizing the cleaning of the water collection box by the device and effectively avoiding the situation of impurities clogging the device. 2. Through the design of the hydraulic cylinder in the limiting groove, when the filter plate or activated carbon plate in the purification box is replaced, the hydraulic cylinder can drive the cover to rise, so that the purification box is placed between the cover and the water tank, which makes it convenient for the staff to replace and clean it. At the same time, it is convenient to connect the threaded installation head to the water pipe for back-pulling, effectively ensuring the flexibility of the device during use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a sponge city rainwater harvesting and sprinkler irrigation system according to the present invention; Figure 2 This is a schematic diagram of the main pipe of a sponge city rainwater harvesting and sprinkler irrigation system according to the present invention; Figure 3 This is a schematic diagram of the main pipe 2 in a sponge city rainwater harvesting and sprinkler irrigation system according to the present invention; Figure 4 This is a front sectional view of the water tank in a sponge city rainwater harvesting and sprinkler irrigation system according to the present invention; Figure 5 This invention relates to a sponge city rainwater harvesting and sprinkler irrigation system. Figure 4 Enlarged view of point A in the middle.

[0027] The annotations in the attached figures are explained as follows: 1. Guide pipe; 2. Screen plate; 3. Water collection hopper; 4. Guide plate; 5. Water collection box; 6. Water inlet pipe; 7. Main pipe one; 8. Electric turntable; 9. Pressurized nozzle one; 10. Horizontal plate; 11. Pressurized nozzle two; 12. Main pipe two; 13. Water supply pipe; 14. Emergency cover; 15. Cover body; 16. Hydraulic cylinder; 17. Limiting groove; 18. Connecting pipe; 19. Two-way pump; 20. Water tank; 21. Water pump; 22. Limiting slide rail; 23. Purification box; 24. Connecting pipe; 25. Threaded mounting head; 26. Filter plate; 27. Drawer; 28. Activated carbon plate; 29. ​​Solenoid valve. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-5As shown, a sponge city rainwater harvesting and sprinkler system includes a water tank 20. Two limiting grooves 17 are symmetrically formed on both sides of the top of the water tank 20. A hydraulic cylinder 16 is installed within each limiting groove 17. A cover 15 connects the telescopic ends of the hydraulic cylinders 16. Two bidirectional pumps 19 are symmetrically arranged on both sides inside the cover 15. One end of each bidirectional pump 19 is connected to a guide pipe 1. A main pipe 7 is installed at the bottom of the guide pipe 1. Three water inlet pipes 6 are installed at the top of the main pipe 7. A water collection box 5 is connected to the top of each water inlet pipe 6. A water collection hopper 3 is provided at the bottom of the inner end of the water collection box 5. A guide plate 4 is arranged around the middle of the water collection box 5. A sieve plate 2 is installed at the top of the water collection hopper 3. A connecting pipe 24 is provided at the other end of the bidirectional pump 19. A purification box 23 is provided at the bottom of the connecting pipe 24 at the bottom of the cover 15. Four limiting slide rails 22 are symmetrically installed on the two side walls of the inner side of the purification box 23. A drawer 27 is provided between every two limiting slide rails 22. A filter plate 26 is fixed in the middle of the upper drawer 27, and an activated carbon plate 2 is arranged in the middle of the lower drawer 27. 8. Through the design of the hydraulic cylinder 16 within the limiting groove 17, when replacing the filter plate 26 or activated carbon plate 28 in the purification box 23, the hydraulic cylinder 16 can drive the cover 15 to rise, placing the purification box 23 between the cover 15 and the water tank 20, facilitating the replacement and cleaning operations by the staff. It also facilitates the connection of the threaded mounting head 25 to the water pipe for back-pull operation, effectively ensuring the flexibility of the device during use. Two water pumps 21 are symmetrically installed at the bottom of the water tank 20, and the outlet of each water pump 21 is connected to a main pipe 12. Both pipe 7 and the end of main pipe 12 away from the water tank 20 are equipped with solenoid valves 29. Through the design of bidirectional pump 19, guide pipe 1 and main pipe 7, after the main pipe 7 has finished collecting rainwater, the bidirectional pump 19 can be controlled to pump the rainwater back. At the same time, the solenoid valve 29 opens, and the water for rinsing main pipe 7 can be discharged from one end of main pipe 7. After the solenoid valve 29 closes, the rainwater will be sprayed out through the inlet pipe 6 and the water collection box 5 under pressure, realizing the cleaning of the water collection box 5 by the device and effectively avoiding the situation of impurities clogging the device.

[0029] In this embodiment, three water supply pipes 13 are installed at the top of the main pipe 12. The top of the water supply pipes 13 are connected to an electric turntable 8. Two horizontal plates 10 are symmetrically arranged on both sides of the electric turntable 8. Pressurized nozzles 9 are arranged on the two opposite side walls of the horizontal plates 10. A second pressurized nozzle 11 is arranged at the end of the horizontal plate 10 away from the electric turntable 8. An emergency cover 14 is installed at the middle of the top of the cover 15. A connecting pipe 18 is arranged at the bottom of the emergency cover 14. The design of the main pipe 12 facilitates the transportation of stored rainwater for irrigation and other purposes, realizing the collection and utilization of rainwater by the device.

[0030] In this embodiment, the water supply pipe 13 is inserted into the main pipe 12, the electric turntable 8 is rotatably connected to the water supply pipe 13, and the horizontal plate 10 is inserted into the electric turntable 8. The design of the main pipe 12 in conjunction with the water supply pipe 13 facilitates the supply of water to the first pressurized nozzle 9 and the second pressurized nozzle 11 through a flexible hose, so as to facilitate the irrigation function of the device. The design of the electric turntable 8 facilitates the horizontal plate 10 to rotate 120° in the horizontal direction, effectively ensuring the irrigation range of the first pressurized nozzle 9 and the second pressurized nozzle 11.

[0031] In this embodiment, the first pressurizing nozzle 9 and the second pressurizing nozzle 11 are connected to the water supply pipe 13 via a flexible hose. The emergency cover 14 is threadedly connected to the cover body 15. The connecting pipe 24 passes through the cover body 15. The design of the emergency cover 14 in conjunction with the connecting pipe 18 facilitates the extraction and use of water in the water tank 20 in emergency situations.

[0032] In this embodiment, the fixed end of the hydraulic cylinder 16 is screwed to the limiting groove 17, the telescopic end of the hydraulic cylinder 16 is screwed to the cover 15, and the bidirectional pump 19 is screwed to the cover 15. The hydraulic cylinder 16 drives the cover 15 to move upward, thereby lifting the cover 15 to facilitate the removal and replacement of the two drawers 27 on the purification box 23, and to facilitate the connection of external pipes to the threaded mounting head 25. The bidirectional pump 19 back-pumps the liquid to facilitate the rinsing of the main pipe 7.

[0033] In this embodiment, one end of the bidirectional pump 19 is inserted into the guide pipe 1, and the other end of the bidirectional pump 19 is inserted into the connecting pipe 24. One end of the connecting pipe 24 is connected to a threaded mounting head 25. The design of the bidirectional pump 19 can both pump and store rainwater in the forward direction and facilitate pumping and flushing water in the reverse direction.

[0034] In this embodiment, the guide pipe 1 is inserted into the main pipe 7, the inlet pipe 6 is inserted into the main pipe 7, and the water collection box 5 is inserted into the inlet pipe 6. The design of the guide pipe 1 facilitates the centralized storage of rainwater in the main pipe 7, and the water collection box 5 facilitates the collection of rainwater.

[0035] In this embodiment, the guide plate 4 is screwed to the water collection box 5, the sieve plate 2 is slotted to the water collection box 5, and the purification box 23 is screwed to the cover 15. The guide plate 4 is designed in conjunction with the water collection hopper 3 to facilitate the collection of rainwater into the main pipe 7.

[0036] In this embodiment, the limiting slide rail 22 is screwed to the purification box 23, the drawer 27 is screwed to the sliding block of the limiting slide rail 22, and the filter plate 26 and the activated carbon plate 28 are both connected to the drawer 27 through slots. The design of the limiting slide rail 22 facilitates the removal of the two drawers 27 to clean and replace the filter plate 26 or the activated carbon plate 28 inside the drawer 27.

[0037] In this embodiment, the water pump 21 is screwed to the water tank 20, and the outlet of the water pump 21 is plugged into the main pipe 2 12. The solenoid valve 29 is flange-connected to both the main pipe 1 7 and the main pipe 2 12. The water pump 21 pumps rainwater into the main pipe 2 12 for spray irrigation. The design of the solenoid valve 29 on the main pipe 1 7 facilitates the discarding of rainwater during the initial collection of rainwater and also facilitates the flushing of the main pipe 1 7. After it is closed, it facilitates the flushing of the inlet pipe 6 and the water collection box 5. The design of the solenoid valve 29 on the main pipe 2 12 facilitates spray irrigation or direct irrigation of the water in the water tank 20.

[0038] The specific working principle is as follows: When using the device, it needs to be installed in a suitable location and connected to an external power supply. During rainwater collection, the design of multiple collection boxes 5 collects rainwater. Combined with the design of the sieve plate 2, it effectively prevents large debris such as fallen leaves from entering the device. Simultaneously, after the rainwater flows through the collection hopper 3 and the inlet pipe 6 into the main pipe 7, the solenoid valve 29 opens, achieving the diversion of initial rainwater and preventing impurities in the initial rainwater from affecting the quality of subsequent rainwater storage. After the rainwater diversion is completed, the solenoid valve 29 of the main pipe 7 closes. When closed, the bidirectional pump 19 starts working, drawing the collected rainwater through the guide pipe 1 into the purification tank 23. As the rainwater passes through the filter plate 26, the filter plate 26 removes finer impurities. Simultaneously, the activated carbon plate 28 adsorbs and purifies the rainwater, effectively purifying and storing the rainwater in the water tank 20. In dry weather, the pump 21 operates, drawing water from the water tank 20 into the main pipe 12, which then directly delivers it through the water pipe 13 to the two pressurized nozzles 9 and 1 on the two horizontal plates 10. Within the device, pressurized nozzles 1-9 and 11 provide irrigation around the surrounding area. Combined with the electric turntable 8, the horizontal plate 10 can rotate 120° horizontally, effectively ensuring the irrigation range for surrounding crops. The solenoid valve 29 at one end of the main pipe 12 facilitates large-scale irrigation of farmland, ensuring flexibility during operation. When replacing the filter plate 26 and activated carbon plate 28, the two hydraulic cylinders 16 move upwards synchronously, lifting the cover 15, allowing direct contact with the two... The drawer 27 is pulled out for cleaning, and the design of the threaded mounting head 25 facilitates the connection of the external water pipe to the connecting pipe 24, so that the bidirectional pump 19 can pump clean water to clean the main pipe 7. When the solenoid valve 29 is open, the main pipe 7 is cleaned. After the solenoid valve 29 is closed, the water is sprayed upward through the water inlet pipe 6 and the water collection box 5, cleaning the water collection box 5 and the water collection basin 3, effectively avoiding the problem of impurities accumulating in the main pipe 7 and causing poor water flow.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A sponge city rainwater harvesting and sprinkler irrigation system, characterized in that: Includes a water tank (20), on which two limiting grooves (17) are symmetrically opened on both sides of the top of the water tank (20). A hydraulic cylinder (16) is installed in the limiting groove (17). A cover (15) is connected between the telescopic ends of the hydraulic cylinder (16). Two bidirectional pumps (19) are symmetrically arranged on both sides of the cover (15). One end of the bidirectional pump (19) is connected to a guide pipe (1). A main pipe (7) is arranged at the bottom of the guide pipe (1). Three water inlet pipes (6) are installed at the top of the main pipe (7). A water collection box (5) is connected at the top of the water inlet pipe (6). A water collection hopper (3) is arranged at the bottom of the water collection box (5). A guide plate (4) is arranged around the middle of the water collection box (5). A sieve plate (2) is installed at the top of the water collection hopper (3). The other end of the bidirectional pump (19) is provided with a connecting pipe (24). The bottom end of the connecting pipe (24) is located at the bottom end of the cover (15) and a purification box (23) is provided. Four limiting slide rails (22) are symmetrically installed on the two inner side walls of the purification box (23). A drawer (27) is provided between every two limiting slide rails (22). A filter plate (26) is fixed in the middle of the upper drawer (27), and an activated carbon plate (28) is provided in the middle of the lower drawer (27). Two water pumps (21) are symmetrically installed at the bottom of the water tank (20). The outlet end of the water pump (21) is connected to the second main pipe (12). Solenoid valves (29) are provided at the ends of the first main pipe (7) and the second main pipe (12) away from the water tank (20).

2. The sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The top of the main pipe (12) is equipped with three water pipes (13), and the top of the water pipes (13) is connected to an electric turntable (8). Two horizontal plates (10) are symmetrically arranged on both sides of the electric turntable (8). A pressure nozzle (9) is provided on the two opposite side walls of the horizontal plate (10). A pressure nozzle (11) is provided at the end of the horizontal plate (10) away from the electric turntable (8). An emergency cover (14) is installed in the middle of the top of the cover (15). A connecting pipe (18) is provided at the bottom of the emergency cover (14).

3. The sponge city rainwater harvesting and sprinkler irrigation system according to claim 2, characterized in that: The water supply pipe (13) is inserted into the main pipe (12), the electric turntable (8) is rotatably connected to the water supply pipe (13), and the horizontal plate (10) is inserted into the electric turntable (8).

4. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 2, characterized in that: The first pressurized nozzle (9) and the second pressurized nozzle (11) are connected to the water supply pipe (13) via a hose. The emergency cover (14) is threadedly connected to the cover body (15). The connecting pipe (24) passes through the cover body (15).

5. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The fixed end of the hydraulic cylinder (16) is screwed to the limiting groove (17), the telescopic end of the hydraulic cylinder (16) is screwed to the cover (15), and the bidirectional pump (19) is screwed to the cover (15).

6. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: One end of the bidirectional pump (19) is inserted into the guide pipe (1), and the other end of the bidirectional pump (19) is inserted into the connecting pipe (24). One end of the connecting pipe (24) is connected to a threaded mounting head (25).

7. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The guide pipe (1) is inserted into the main pipe (7), the water inlet pipe (6) is inserted into the main pipe (7), and the water collection box (5) is inserted into the water inlet pipe (6).

8. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The guide plate (4) is screwed to the water collection box (5), the sieve plate (2) is slotted to the water collection box (5), and the purification box (23) is screwed to the cover (15).

9. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The limiting slide rail (22) is screwed to the purification box (23), the drawer (27) is screwed to the sliding block of the limiting slide rail (22), and the filter plate (26) and the activated carbon plate (28) are both connected to the slot of the drawer (27).

10. A sponge city rainwater harvesting and sprinkler irrigation system according to claim 1, characterized in that: The water pump (21) is screwed to the water tank (20), the outlet of the water pump (21) is plugged into the main pipe (12), and the solenoid valve (29) is flanged to both the main pipe (7) and the main pipe (12).

Images