Rainwater and sewage diversion and discharge device for sponge city

Abstract

The present application relates to the technical field of urban drainage, in particular to a rainwater and sewage diversion and discharge device for sponge city, which comprises a water distribution bucket, a water inlet is formed at the top of one side of the water distribution bucket, a sewage outlet is formed at the bottom of the water distribution bucket, a clean water outlet is formed at the other side of the water distribution bucket, the clean water outlet is higher than the sewage outlet, a rainwater inlet pipe is connected to the water inlet, a sewage pipe is connected to the sewage outlet, and a clean water storage tank is connected to the clean water outlet; the device further comprises a water quantity monitoring assembly and a delay opening and closing assembly, the water quantity monitoring assembly is arranged inside the water distribution bucket, the delay opening and closing assembly is arranged outside the water distribution bucket, the water quantity monitoring assembly is connected to the delay opening and closing assembly, the water quantity monitoring assembly is used for monitoring the water quantity in the water distribution bucket and controlling the delay opening and closing assembly, so that the delay opening and closing assembly controls the on-off of the sewage pipe. The present application can effectively divert rainwater, which helps to improve the utilization rate of water resources.

Description

Technical Field

[0001] This invention relates to the field of urban drainage technology, specifically a sponge city rainwater and sewage diversion and discharge device. Background Technology

[0002] Sponge city is a new concept of urban stormwater management. It focuses on building "sponge bodies" with natural storage, infiltration, and purification functions. It aims to improve the efficiency of urban drainage systems, reduce urban flooding, replenish groundwater, and improve the urban ecological environment. Rainwater flows back to the collection point from areas such as rooftops, roads, squares, and green belts through slopes, permeable paving, or drainage networks. Through rainwater and sewage separation devices, the initial sewage is discharged into the municipal sewer system. After filtration and disinfection by the underground integrated machine, the rainwater enters the PP module clear water tank for daily use. The clean water is discharged into the clean water storage tank in the middle and later stages. After simple filtration and disinfection, it can be directly discharged into ponds or used for agricultural and forestry irrigation.

[0003] However, existing rainwater harvesting systems collect rainwater at the beginning of rainfall that is mostly mixed with a large amount of impurities brought from the ground or roof. Once most of the impurities on the ground or roof have been washed away, the rainwater is relatively clean and can be collected separately for use. For example... Figure 9 As shown, the existing water storage tank includes a tank body. One side of the tank body has an inlet at its upper part, and the other side has an outlet at its lower part. A drain pipe is installed at the outlet, and the diameter of the inlet pipe is larger than that of the drain pipe, extending into the interior of the tank body. A support frame is installed at the bottom of the tank body, and a rotating rod is hinged to the upper end of the support frame. Connecting rods are fixed to both ends of the rotating rod, and floats are installed at the ends of the two connecting rods. A swing rod is also installed in the middle of the rotating rod, and a baffle plate is installed at the end of the swing rod. During light rain, a small amount of rainwater enters the tank body through the inlet and is discharged along the drain pipe. During heavy rain or storms, a large amount of rainwater enters the tank body. As the liquid level in the tank rises, the floats rise with the liquid level, driving the rotating rod to rotate, which in turn causes the baffle plate to rotate to the drain pipe opening, cutting off the outlet and initiating water storage. In practical applications, it was found that during heavy rain or storms, the amount of rain entering the water tank was too large, and the float rose for a short time, causing the baffle plate to directly block the opening of the drain pipe. This resulted in poor discharge of sewage with impurities in the early stages of rainfall, making it impossible to effectively separate rainwater and sewage. This affected the quality of rainwater collected in the water tank and also added to the workload of subsequent sewage treatment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a sponge city rainwater and sewage diversion and discharge device, which can discharge sewage into municipal sewer pipes under light rainfall conditions, and achieve the separation of sewage and clean water under medium and heavy rainfall conditions, thereby improving water resource utilization.

[0005] The technical solution adopted by this invention to solve its technical problem is: A sponge city rainwater and sewage diversion and discharge device includes a water distribution tank. A water inlet is located at the top of one side of the tank, and a sewage outlet is located at the bottom. A clean water outlet is located on the other side of the tank, higher than the sewage outlet. A rainwater inlet pipe is connected to the water inlet, a sewage outlet is connected to the sewage outlet, and a clean water storage tank is connected to the clean water outlet. The device also includes a water volume monitoring component and a time-delayed opening and closing component. The water volume monitoring component is located inside the water distribution tank, and the time-delayed opening and closing component is located outside the tank. The water volume monitoring component is connected to the time-delayed opening and closing component. The water volume monitoring component monitors the amount of water entering the water distribution tank and is linked to the time-delayed opening and closing component to control the opening and closing of the sewage outlet.

[0006] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the careful design and configuration of water volume monitoring components and delayed opening / closing components, cleverly enables the water distribution tank to smoothly discharge rainwater containing a large amount of impurities directly into the municipal sewer system through a drain pipe during light rainfall, facilitating subsequent environmental treatment. During moderate and heavy rainfall, the initial rainwater, also containing a large amount of impurities, is effectively discharged into the municipal sewer system, ensuring that impurities do not enter the water purification system. As rainfall continues, the later, cleaner rainwater is systematically discharged through a dedicated drain pipe into a water purification tank for collection and storage, thus achieving effective separation of rainwater and wastewater. This design not only significantly improves water resource utilization but also effectively protects the environment and promotes the sustainable use of water resources.

[0007] As a preferred embodiment, a further technical solution of the present invention is: Preferably, the water volume monitoring component includes a water receiving hopper, a base plate, and a hose. The water receiving hopper is located near the water inlet and below the water inlet. An outer pipe is provided at the bottom of the water receiving hopper. A connection port is provided on the side of the outer pipe near the inner wall of the water distribution tank. The connection port is connected to the delayed opening and closing component through the hose. An inner tube is installed on the base plate, which is placed inside the outer tube and slides with the outer tube; a drain outlet is opened at the bottom of the inner tube, and a second connection port is provided on the side of the inner tube near the first connection port of the outer tube.

[0008] Preferably, the bottom plate is connected to the inner wall of the water distribution tank via a connecting plate.

[0009] Preferably, first connecting blocks are symmetrically arranged on both sides of the base plate, and second connecting blocks corresponding to the first connecting blocks are arranged at the bottom of the outer tube. The first connecting blocks and the second connecting blocks on the same side are connected by a second spring.

[0010] Preferably, the delayed opening and closing component includes a water storage box, which is connected to a hose; a sealing plate is provided at the bottom of the water storage box, which is inserted into a drain pipe; and a water outlet is provided on the side of the water storage box, which is connected to the drain pipe through a connecting pipe.

[0011] Preferably, a No. 1 spring is installed between the bottom of the water storage box and the outer wall of the drain pipe.

[0012] Preferably, it also includes a self-resetting push-button switch, a solenoid valve, and a power supply. The self-resetting push-button switch is placed on the connecting plate, and a pressure block adapted to the self-resetting push-button switch is provided at the bottom of the outer tube. The power supply is placed at the bottom of the water storage box, and the water outlet is connected to the connecting tube through the solenoid valve. The power supply, the self-resetting push-button switch, and the solenoid valve are electrically connected.

[0013] Preferably, the top of the water distribution tank is provided with a top cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 In this invention Figure 1 A cross-sectional schematic diagram; Figure 3 This is a schematic diagram of the structure of the water inlet, outer pipe, and inner pipe in this invention; Figure 4 This is a schematic diagram showing the positions of each component in light rain or no rain conditions. Figure 5 In this invention Figure 4 Enlarged view of part A; Figure 6 This is a schematic diagram showing the positions of each component of the present invention under moderate or heavy rainfall conditions. Figure 7 In this invention Figure 6 Enlarged view of part B; Figure 8 This is a schematic diagram of the water storage box filled with rainwater in this invention; Figure 9 This refers to a water storage tank as used in existing technologies. Explanation of reference numerals in the attached diagram: 1. Water distribution tank; 2. Top cover; 3. Rainwater inlet pipe; 4. Sewage pipe; 5. Drain pipe; 6. Water receiving hopper; 7. Base plate; 8. Flexible hose; 9. Outer pipe; 10. Connection port one; 11. Water outlet; 12. Connecting plate; 13. Inner pipe; 14. Drain outlet; 15. Connection port two; 16. First connecting block; 17. Second connecting block; 18. Spring No. 2; 19. Water storage box; 20. Sealing plate; 21. Spring No. 1; 22. Self-resetting push switch; 23. Pressure block. Detailed Implementation

[0015] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0016] like Figures 1 to 8 As shown, a sponge city rainwater and sewage diversion and discharge device mainly consists of a water distribution tank 1, a water volume monitoring component and a time-delay opening and closing component. The top of the water distribution tank 1 is provided with a top cover 2, which is connected to the water distribution tank 1 by bolts.

[0017] A water inlet is provided on the top right side of the water distribution tank 1. The water inlet is connected to the rainwater inlet pipe 3, which guides rainwater from the ground or roof. Rainwater from the ground or building can be guided into the water distribution tank 1 through the rainwater inlet pipe 3.

[0018] A drain outlet is provided at the bottom right side of the water distribution tank 1. The drain outlet is connected to the municipal sewer pipe through the drain pipe 4. By setting up the drain pipe 4, rainwater with a large amount of pollutants in the early stage can be discharged into the municipal sewer pipe for subsequent treatment.

[0019] A clean water inlet is provided in the middle of the left side of the water distribution tank 1. The clean water inlet is higher than the sewage outlet and lower than the water inlet. The clean water inlet is connected to a clean water storage tank through the drain pipe 5. The relatively clean rainwater is discharged into the clean water storage tank through the drain pipe 5 for temporary storage.

[0020] The water volume monitoring component is located inside the water distribution tank 1, and the delayed opening and closing component is located outside the water distribution tank 1. The water volume monitoring component and the delayed opening and closing component are interconnected, specifically as follows: The water volume monitoring component consists of a water receiving hopper 6, a base plate 7, and a flexible hose 8. The water receiving hopper 6 is located on the side near the water inlet, and the upper end of the water receiving hopper 6 is positioned below the water inlet. An outer pipe 9 is fixedly connected to the bottom of the water receiving hopper 6. A connection port 10 is opened on the right side of the outer pipe 9. The connection port 10 is connected to one end of the flexible hose 8, and the other end of the flexible hose 8 passes through the wall of the water distribution tank 1 and is connected to the delayed opening and closing component outside the water distribution tank 1.

[0021] The base plate 7 is connected and fixed to the inner wall of the water distribution tank 1 via the connecting plate 12. An inner tube 13 is fixedly connected to the upper surface of the base plate 7. The inner tube 13 is fitted inside the outer tube 9 and slides with the outer tube 9. A drain outlet 14 is provided at the bottom left side of the inner tube 13, and a second connection port 15 is provided on the right side of the inner tube 13. When the outer tube 9 slides down to the point where the first connection port 10 is aligned with the second connection port 15, the interior of the inner tube 13 is connected to the first connection port 10 through the second connection port 15, thereby connecting the interior of the inner tube 13 with the flexible hose 8.

[0022] The base plate 7 has symmetrical first connecting blocks 16 on its front and rear sides. The bottom of the outer pipe 9 has second connecting blocks 17 on its front and rear sides, corresponding to the first connecting blocks 16. The first connecting blocks 16 and the second connecting blocks 17 on the same side are connected by a second spring 18. When the rainfall is small, the rainwater flows directly through the gap between the water inlet 6 and the inlet. A small amount of rainwater entering the water inlet 6 will also flow out from the drain outlet 14 and finally flow into the municipal sewer pipe through the sewage pipe 4. When the rainfall is large, the water inlet 6 will receive a large amount of rainwater. Under the impact of the rainwater and gravity, the water inlet 6 and the outer pipe 9 will descend. At this time, the first connecting port 10 and the second connecting port 15 will be aligned and connected. The hose 8 will be connected to the inside of the inner pipe 13, and the outer pipe 9 will block the drain outlet 14 at the bottom of the inner pipe 13.

[0023] The delayed opening and closing assembly includes a water storage box 19, the top of which is connected to the other end of the hose 8; a sealing plate 20 is vertically connected to the bottom of the water storage box 19, and an inlet adapted to the sealing plate 20 is opened on the upper surface of the drain pipe 4. After the sealing plate 20 is inserted into the inlet, it cuts off the drain pipe 4.

[0024] In this embodiment, the bottom of the water storage box 19 is connected to the outer wall of the drain pipe 4 by a spring 21.

[0025] A self-resetting push-button switch 22 is installed on the upper surface of the connecting plate 12, and a pressure block 23 adapted to the self-resetting push-button switch 22 is fixedly connected to the bottom of the outer tube 9; a water outlet 11 is opened at the bottom of the side wall of the water storage box 19, and the water outlet 11 is connected to the connecting pipe through a solenoid valve, and the connecting pipe is connected to the drain pipe 4; in this embodiment, the solenoid valve is electrically connected to the self-resetting push-button switch 22, and a power supply is installed at the bottom of the water storage box 19, which supplies power to the solenoid valve and the self-resetting push-button switch.

[0026] In this embodiment, when it rains, rainwater enters through the rainwater inlet pipe 3. When the amount of rainwater is small, the rainwater contains more impurities. The rainwater flows directly through the gap between the water receiving hopper 6 and the inlet into the water distribution bucket 1, and then flows along the sewage pipe 4 into the municipal sewer system. A small amount of rainwater entering the water receiving hopper 6 will also flow out through the drain outlet 14, and finally flow through the sewage pipe 4 into the municipal sewer system. If the rainfall is moderate or heavy, the water collection hopper 6 will collect a large amount of rainwater. Under the impact and gravity of the rainwater, the water collection hopper 6 and the outer pipe 9 will descend. At this time, the first connection port 10 and the second connection port 15 will align, so that the inside of the inner pipe 13 is connected to the hose 8. The descending outer pipe 9 will block the drain outlet 14 of the inner pipe 13, and the rainwater will flow into the water storage box 19 along the hose 8. At the same time, the outer pipe 9 will move down, the pressure block 23 will press down the self-resetting pressure switch 22, and the solenoid valve will be energized to cut off the outlet 11 of the water storage box 19. In the early stages of rainfall, the weight of the rainwater flowing into the water storage box 19 is insufficient to move the sealing plate 20 down to block the drain pipe 5. Therefore, the rainwater containing more impurities in the early stages of rainfall will be discharged from the sewage pipe 4 into the municipal sewer system. After a period of rainfall, when enough rainwater has flowed into the water storage box 19, the weight of the rainwater is sufficient to move the water storage box 19 down and thus move the sealing plate 20 down to block the drain outlet. Therefore, the clean rainwater in the middle of rainfall will be temporarily stored in the water distribution tank 1 until the liquid level reaches the position of the clean water outlet, and the rainwater will be discharged from the clean water outlet to the clean water pool for collection. After the rainfall ends, the water receiving hopper 6 resets under the action of spring 18, the self-resetting push switch 22 loses its push-reset function, the solenoid valve is de-energized, the outlet 11 of the water storage box 19 opens, and the water in the water storage box 19 is discharged from the outlet 11. Due to the gravity of the rainwater, the water storage box 19 is pushed upward by the elastic force of spring 21, which in turn causes the sealing plate 20 to move upward, opening the drain outlet. The remaining rainwater in the water distribution bucket 1 is discharged into the municipal sewer pipe through the drain outlet.

[0027] This invention cleverly utilizes a water volume monitoring component and a delayed opening / closing component to ensure that, in light rainfall, rainwater containing a large amount of impurities is smoothly discharged directly into the municipal sewer system through a drain pipe. During moderate and heavy rainfall, the initial rainwater, also containing a large amount of impurities, is effectively discharged into the municipal sewer system, ensuring that impurities do not enter the water purification system. As rainfall continues, the later, cleaner rainwater is systematically discharged into a water purification tank through a dedicated drain pipe for collection and storage, thus achieving effective separation of rainwater and wastewater. This design not only significantly improves water resource utilization but also effectively protects the environment and promotes the sustainable use of water resources.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A sponge city rainwater and sewage diversion and discharge device, comprising a water distribution tank, characterized in that: The water distribution tank has an inlet at the top of one side and a drain at the bottom. A clean water inlet is located in the middle of the other side, higher than the drain. The inlet is connected to a rainwater inlet pipe, the drain to a sewage pipe, and the clean water inlet to a clean water storage tank. The tank also includes a water volume monitoring component and a time-delayed opening / closing component. The water volume monitoring component is located inside the water distribution tank, while the time-delayed opening / closing component is located outside. The water volume monitoring component monitors the amount of water entering the water distribution tank and is linked to the time-delayed opening / closing component for control. The system controls the opening and closing of the sewage pipe. The water monitoring component includes a receiving hopper, a base plate, and a hose. The receiving hopper is positioned below the inlet, near the inlet. An outer pipe is located at the bottom of the receiving hopper, with a connection port one near the inner wall of the distribution tank. This connection port one connects to a delayed opening / closing component via a hose. An inner pipe is located on the base plate, inside and sliding with the outer pipe. A drain outlet is located at the bottom of the inner pipe, with a second connection port one near the outer pipe connection port one. The base plate is fixed to the inner wall of the distribution tank via a connecting plate, and the upper surface of the base plate is fixed. The device includes an inner tube that is fitted inside an outer tube and slides within it. A drain outlet is located at the bottom left side of the inner tube, and a second connection port is located at the right side. When the outer tube slides down to the point where the first and second connection ports align, the inner tube connects to the first connection port via the second connection port, thus connecting the inner tube to the flexible hose. First connecting blocks are symmetrically arranged on both sides of the base plate, and second connecting blocks corresponding to the first connecting blocks are located at the bottom of the outer tube. The first and second connecting blocks on the same side are connected by a second spring. The delayed opening / closing assembly includes a water storage box. The water storage box is connected to a hose; a sealing plate is installed at the bottom of the water storage box, and the sealing plate is inserted into the drain pipe; a water outlet is installed on the side of the water storage box, and the water outlet is connected to the drain pipe through a connecting pipe; a No. 1 spring is installed between the bottom of the water storage box and the outer wall of the drain pipe; it also includes a self-resetting push switch, a solenoid valve and a power supply, the self-resetting push switch is placed on the connecting plate, and a pressure block adapted to the self-resetting push switch is installed at the bottom of the outer pipe; the power supply is placed at the bottom of the water storage box, and the water outlet is connected to the connecting pipe through the solenoid valve; the power supply, the self-resetting push switch and the solenoid valve are electrically connected.

2. The sponge city rainwater and sewage diversion and discharge device according to claim 1, characterized in that: The top of the water distribution tank is equipped with a lid.

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