Rainwater recovery device for sponge city

Abstract

The utility model relates to the technical field of rainwater recovery in sponge cities, and provides a rainwater recovery device for a sponge city, which comprises a plurality of rainwater filtering bins and a plurality of rainwater collecting bins, the rainwater recycling bin is arranged below the vegetation; one end of each pipeline is communicated with the rainwater filtering bin, and the other end of each pipeline is communicated with the rainwater recycling bin; one end of each first permeation pipe is arranged in the rainwater recycling bin, and the other end of each first permeation pipe is used for being arranged in soil below vegetation; the second permeation pipes are arranged at the ends, away from the rainwater recycling bin, of the first permeation pipes. Through the technical scheme, the problem of high dependence on manpower in related technologies is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater recycling in sponge cities, and specifically to a rainwater recycling device for sponge cities. Background Art

[0002] In traditional municipal road construction, during heavy rainstorms, large amounts of rainwater flow directly through the stormwater pipe network beneath the road, resulting in a significant waste of water and increasing the burden on urban drainage facilities. On sunny days, the greenery along the roadside needs to be irrigated, resulting in a significant waste of water resources.

[0003] At present, most of the rainwater on the market is discharged directly into the municipal drainage facilities and eventually into the urban water bodies. A few areas will designate certain areas to experimentally intercept and reuse rainwater, mainly through rainwater outlets and rainwater pipes to lead the ground rainwater to a low-lying area, build a collection pool (box), and when it is needed, open the lid, lower the water pump, and pump out the rainwater for recycling.

[0004] However, it only builds a simple collection and sedimentation tank. When needed, the water in the rainwater tank must be manually taken out and reused, which is highly dependent on manpower. In addition, the rainwater collection and utilization system does not collect ground rainwater thoroughly enough, and the sedimentation and filtration effects are poor, resulting in poor rainwater quality in the sedimentation tank. Utility Model Content

[0005] The utility model provides a rainwater recycling device for sponge cities, which solves the problem of high dependence on manual labor in related technologies.

[0006] The technical solution of the utility model is as follows:

[0007] A rainwater recycling device for sponge cities, comprising:

[0008] Rainwater filtration chamber, with several;

[0009] Rainwater recovery tanks are set under the vegetation;

[0010] There are a plurality of pipelines, each of which has one end connected to the rainwater filtration chamber and one end connected to the rainwater recovery chamber, and the pipeline is used to drain the rainwater in the rainwater filtration chamber into the rainwater recovery chamber;

[0011] There are a plurality of first infiltration tubes, each of which has one end disposed in the rainwater recovery bin and the other end disposed in the soil below the vegetation;

[0012] The second infiltration tube is arranged on one end of the plurality of first infiltration tubes away from the rainwater recovery tank.

[0013] As a further technical solution, it also includes:

[0014] The filter material is arranged in a plurality of the rainwater filter chambers.

[0015] As a further technical solution, the rainwater recovery tank has a plurality of water outlets and water inlets, wherein the water inlets are higher than the water outlets along the direction of the first permeation tube, and further comprises:

[0016] There are a plurality of clean water tanks, which are arranged around the rainwater recovery tank, and the plurality of clean water tanks and the rainwater recovery tank are connected through a plurality of water inlets and outlets;

[0017] There are a plurality of water pumps, and the plurality of water pumps are respectively arranged at the bottom of the plurality of clean water tanks in a one-to-one correspondence;

[0018] A filter screen is arranged in the water purification tank, and the height of the filter screen is located between the water inlet and the water pump;

[0019] There are several water receiving parts, the lower ends of the water receiving parts are connected to the outlets of the water pumps, and the upper ends of the water receiving parts extend to the ground surface.

[0020] As a further technical solution, the water inlet includes a first communication end located in the rainwater recovery bin, and the opening of the first communication end faces upward;

[0021] An expansion block is provided above the first connecting end, and the expansion block is connected to the first connecting end via a first elastic member;

[0022] When the water level in the rainwater recovery tank is lower than the water inlet, the expansion block is pressed against the first communication end under the tension of the first elastic member, thereby blocking the opening of the first communication end, and the water inlet is in a closed state;

[0023] When the water level in the rainwater recovery bin is higher than the water inlet, the expansion block moves upward under the action of buoyancy, and the water inlet is in an open state.

[0024] As a further technical solution, it also includes:

[0025] The one-way flow component is arranged on the water outlet.

[0026] As a further technical solution, the one-way flow component includes:

[0027] A mounting block is provided on the water outlet, wherein the mounting block has a sliding groove, and a side of the sliding groove facing the clean water tank has a protrusion;

[0028] A sliding block is slidably arranged in the sliding groove, and the end of the sliding block facing the clean water tank is conical. A second elastic member is provided on the side of the sliding block facing away from the clean water tank, and the second elastic member is used to provide force for the sliding block to approach the protrusion.

[0029] As a further technical solution, when the clean water tank is full of water, the pressure of the water in the clean water tank on the expansion block is less than the elastic force of the first elastic member.

[0030] As a further technical solution, the filter material is pebbles.

[0031] The working principle and beneficial effects of the utility model are as follows:

[0032] In the present invention, rainwater is introduced into rainwater filtration bins through a collection system on both sides of the road. These filtration bins are equipped with filter materials that can initially filter out large particles of impurities and suspended matter in the rainwater. The filtered rainwater will become clearer, laying the foundation for subsequent recycling. The rainwater recovery bin is set under the vegetation to collect the rainwater that has been preliminarily filtered. The design of these recovery bins should take into account integration with the surrounding environment while ensuring sufficient capacity to store rainwater. Pipes connect the rainwater filtration bins and the rainwater recovery bins to form a channel for water flow. These pipes need to be inspected and cleaned regularly to ensure unobstructed water flow. One end of the first infiltration pipe is set in the rainwater recovery bin, and the other end is set in the soil under the vegetation. This design allows the stored rainwater to slowly penetrate into the soil through the infiltration pipe, nourishing the vegetation while reducing surface runoff. The second infiltration pipe is set at the end of the first infiltration pipe away from the rainwater recovery bin, further promoting the infiltration of rainwater into the soil and increasing groundwater recharge. The coordinated use of rainwater filtration tanks and recycling tanks effectively collects and stores rainwater, reducing the waste of rainwater resources. Furthermore, the rainwater recycling process reduces reliance on manual labor. Through the use of infiltration pipes, rainwater slowly seeps into the ground, reducing the amount that flows directly into the urban drainage system, thereby alleviating pressure on the drainage system. Rainwater seeps into the soil through the infiltration pipes, increasing soil moisture, providing water for vegetation, and improving the urban ecological environment. By slowing the rate at which rainwater flows into the drainage system, the risk of urban flooding can be reduced. Rainwater recycling and reuse reduces the demand for fresh water resources and the energy consumption required to operate water pumps, achieving the dual benefits of water and energy conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] Figure 1 This is a schematic diagram of the structure of the utility model;

[0035] Figure 2 for Figure 1 A local enlarged structural diagram of point A;

[0036] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at point B;

[0037] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point C.

[0038] In the figure: 1. Filter chamber, 2. Rainwater recovery chamber, 3. Pipeline, 4. First permeation tube, 5. Second permeation tube, 6. Filter material, 7. Water outlet, 8. Water inlet, 9. Clean water chamber, 10. Water pump, 11. Water receiving part, 12. Expansion block, 13. First elastic part, 14. Mounting block, 15. Sliding groove, 16. Protrusion, 17. Sliding block, 18. Filter screen, 19. Second elastic part, 20. One-way flow component. DETAILED DESCRIPTION

[0039] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example

[0041] like Figures 1 to 4 As shown, this embodiment proposes

[0042] A rainwater recycling device for sponge cities includes several rainwater filtering chambers 1 and rainwater recycling chambers 2 arranged under vegetation. The rainwater filtering chambers 1 are arranged on both sides of the road, and the upper end openings of the rainwater filtering chambers 1 are flush with or slightly lower than the road surface, so that rainwater can flow into the rainwater filtering chambers 1. It also includes a rainwater recycling chamber 2 arranged under the vegetation, a pipeline 3 is provided between the rainwater recycling chamber 2 and the rainwater filtering chamber 1, and rainwater flows from the rainwater filtering chamber 1 into the rainwater recycling chamber 2 through the pipeline 3. A first infiltration pipe 4 and a second infiltration pipe 5 are also provided in the soil under the vegetation, one end of the first infiltration pipe 4 is deep into the rainwater recycling chamber 2, and the other end is buried in the soil under the vegetation. The second infiltration pipe 5 is located in the soil under the vegetation and is connected to several first infiltration pipes 4.

[0043] In this embodiment, rainwater is introduced into rainwater filtration chambers 1 through a collection system located along the road. These filtration chambers 1 are equipped with filter material 6, which can initially filter out large particles of impurities and suspended matter in the rainwater. The filtered rainwater becomes clearer, laying the foundation for subsequent recycling. Rainwater recovery chambers 2 are located beneath the vegetation to collect the preliminarily filtered rainwater. The design of these recovery chambers should take into account integration with the surrounding environment while ensuring sufficient capacity to store rainwater. Pipes 3 connect the rainwater filtration chambers 1 and the rainwater recovery chambers 2, forming a channel for water flow. These pipes 3 require regular inspection and cleaning to ensure unobstructed water flow. One end of the first infiltration pipe 4 is located inside the rainwater recovery chamber 2, and the other end is located in the soil beneath the vegetation. This design allows the stored rainwater to slowly seep into the soil through the infiltration pipe, nourishing the vegetation while reducing surface runoff. A second infiltration pipe 5 is located at the end of the first infiltration pipe 4 away from the rainwater recovery chamber 2, further promoting the infiltration of rainwater into the soil and increasing groundwater recharge. By using the rainwater filter tank 1 in conjunction with the recycling tank, rainwater can be effectively collected and stored, reducing the waste of rainwater resources. The process of recycling rainwater reduces dependence on manual labor. By using infiltration pipes, rainwater can slowly seep into the ground, reducing the amount of rainwater that directly flows into the urban drainage system, thereby alleviating the pressure on the drainage system. Rainwater infiltrates into the soil through the infiltration pipes, which can increase soil moisture, provide moisture for vegetation, and improve the urban ecological environment. By slowing the speed at which rainwater flows into the drainage system, the risk of urban waterlogging can be reduced. By recycling and reusing rainwater, the demand for fresh water resources is reduced, and the energy consumption required to operate the water pump 10 is also reduced, achieving the dual effects of water conservation and energy conservation.

[0044] Furthermore, it also includes filter materials 6 arranged in several rainwater filter chambers 1.

[0045] In this embodiment, the collected rainwater can be used for vegetation irrigation, urban landscape watering, and other uses through the purification effect of the filter material 6, thereby improving the utilization rate of rainwater resources. The use of the filter material 6 helps slow the flow of rainwater into the drainage system, increases the permeability of the soil, and thus reduces the risk of urban waterlogging.

[0046] Furthermore, the rainwater recovery tank 2 has several water outlets 7 and water inlets 8, and the water inlet 8 is higher than the water outlet 7 along the direction of the first infiltration tube 4. It also has several clean water tanks 9, and the several clean water tanks 9 are all arranged under the vegetation. The clean water tanks 9 are distributed around the rainwater recovery tank 2, and the clean water tanks 9 and the rainwater recovery tank 2 are connected through the water inlet 8 and the water outlet 7; water pumps 10 are respectively arranged at the bottom of several clean water tanks 9, and there are also several filter screens 18, and several filter screens 18 are respectively arranged between the water inlet 8 and the water pump 10, and there are several water receiving parts 11 that are respectively connected to the water pump 10, and the water receiving parts 11 are arranged above the vegetation.

[0047] In this embodiment, the scheme is provided with a water outlet 7 and a water inlet 8 in the rainwater recovery bin 2. When the rainwater level in the rainwater recovery bin 2 is higher than the water inlet 8, the rainwater will flow into the clean water bin 9 along the water inlet 8 to avoid the water level being too high and the water pressure being too high, thereby causing damage to the rainwater recovery bin 2. The water pump 10 arranged in the clean water bin 9 is connected to the water receiving part 11 on the ground. When the water content in the clean water bin 9 is higher than the filter screen 18, the rainwater above the filter screen 18 is further filtered into clean water, which can be pumped out through the water pump 10 and the water receiving part 11 for use, such as watering flowers indoors, washing, etc.

[0048] Furthermore, the water inlet 8 includes a first connecting end located within the rainwater recovery chamber 2 and a second connecting end located within the clean water chamber 9, wherein the opening of the first connecting end faces upward. An expansion block 12 is provided above the first connecting end and is connected to the first connecting end via a first elastic member.

[0049] When the water level in the rainwater recovery bin 2 is lower than the water inlet 8, the expansion block 12 is pressed against the first connecting end under the tension of the first elastic member, and the opening of the first connecting end is blocked, and the water inlet 8 is in a closed state; when the water level in the rainwater recovery bin 2 is higher than the water inlet 8, the expansion block moves upward under the action of buoyancy, and the water inlet 8 is in an open state.

[0050] In this embodiment, the water inlet 8 is automatically opened or closed by the movement of the expansion block 12, thereby realizing automatic control of the flow of rainwater. This design reduces the need for manual operation and improves the response speed and accuracy of the system. The addition of the first elastic member 13 provides the force required for the movement of the expansion block 12. When the water level in the rainwater recovery bin 2 is higher than the height of the expansion block 12, the expansion block 12 will overcome the elastic force of the first elastic member 13 under the action of the buoyancy of the water, thereby opening the water inlet 8, and the rainwater in the rainwater recovery bin 2 will flow into the clean water bin 9. When the water level in the rainwater recovery bin 2 is lower than the height of the expansion block 12, the expansion block 12 is only affected by the elastic force of the first elastic member 13, so that the expansion block 12 and the water inlet 8 abut, closing the water inlet 8, and the rainwater in the rainwater recovery bin 2 can flow into the clean water bin 9 through the water inlet 8 for filtration, thereby enhancing the adaptability and flexibility of the system. By automatically controlling the collection and release of rainwater, rainwater resources can be utilized more effectively, reducing the pressure on the urban drainage system during heavy rains. At the same time, it can also provide necessary moisture for vegetation during droughts. When the water level in the clean water tank 9 is higher than the rainwater recovery tank 2, the water in the clean water tank 9 will flow into the rainwater recovery tank 2 through the water inlet 8 for replenishment.

[0051] Furthermore, it also includes:

[0052] The one-way flow component 20 is provided on the water outlet 7. The one-way flow component 20 is used to control the flow direction of water so that water can only flow from the clean water tank 9 to the rainwater recovery tank 2.

[0053] In this embodiment, the scheme is provided with a one-way circulation component 20. When the water level in the clean water tank 9 is higher than the water in the rainwater recovery tank 2, the water in the clean water tank 9 will flow into the rainwater recovery tank 2 through the one-way circulation valve, replenishing the water in the rainwater recovery tank 2, so that the rainwater can continue to replenish water to the vegetation under the action of the first infiltration tube 4 and the second infiltration tube 5.

[0054] As a specific implementation, in this embodiment, the one-way flow component 20 includes a mounting block 14 arranged on the water outlet 7, the mounting block 14 has a sliding groove 15, and one side of the sliding groove 15 has a protrusion 16; a sliding block 17, which is slidably arranged in the sliding groove 15, one end of the sliding block 17 is conical, and the conical side faces the clean water tank 9, and a second elastic member 19 is provided on the other side of the sliding block 17, the second elastic member 19 is used to provide a force for the sliding block 17 to approach the protrusion 16, and after the sliding block 17 slides in the sliding groove 15, it is used to control whether the rainwater recovery tank 2 and the clean water tank 9 are connected or not.

[0055] In this embodiment, a mounting block 14 is provided on the water outlet 7. The mounting block 14 has a sliding groove 15, within which a sliding block 17 slides. When rainwater flows from the tapered side of the sliding block 17 into the sliding groove 15, the rainwater compresses the second elastic member 19, opening the water outlet 7 and allowing rainwater to flow through. When rainwater flows from the other side, the tapered side of the sliding block 17 abuts against the protrusion 16, closing the water outlet 7. When the water level in the rainwater recovery tank 2 falls below the water level in the clean water tank 9, the clean water tank 9 can replenish rainwater into the rainwater recovery tank 2, ensuring sufficient water in the rainwater recovery tank 2. The water below the filter 18 is secondary filtered water, so water in the rainwater recovery tank 2 cannot flow back through the water outlet 7 into the clean water tank 9, thereby contaminating the filtered water in the clean water tank 9.

[0056] Furthermore, when the clean water tank 9 is full of water, the pressure exerted by the water in the clean water tank 9 on the expansion block 12 is less than the elastic force of the first elastic member 13 .

[0057] In this embodiment, in order to prevent the water in the clean water tank 9 from pushing the expansion block 12 and causing the water in the clean water tank 9 to flow back into the rainwater collection tank, the water pressure when the clean water tank 9 is full of water in this solution will not push the expansion block 12, that is, the pressure when it is full of water is less than the elastic force of the first elastic member 13.

[0058] Furthermore, the filter material 6 is pebbles.

[0059] In this embodiment, in order to reduce costs and enable the filter material 6 to have better filtering performance, the filter material 6 of this solution is selected as pebbles.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rainwater recycling device for sponge city, characterized in that: include: A rainwater filtering chamber (1) having a plurality of; A rainwater recovery tank (2) is provided below the vegetation; There are a plurality of pipelines (3), each of which has one end connected to the rainwater filter chamber (1) and one end connected to the rainwater recovery chamber (2), and the pipelines (3) are used to drain rainwater in the rainwater filter chamber (1) into the rainwater recovery chamber (2); There are a plurality of first infiltration tubes (4), each of which has one end disposed in the rainwater recovery bin (2) and the other end disposed in the soil below the vegetation; A second permeation tube (5) is arranged on one end of the plurality of first permeation tubes (4) away from the rainwater recovery tank (2).

2. A rainwater recycling device for sponge city according to claim 1, characterized in that: Also includes: Filter materials (6) are arranged in a plurality of the rainwater filter chambers (1).

3. A rainwater recycling device for sponge city according to claim 1, characterized in that: The rainwater recovery tank (2) has a plurality of water outlets (7) and water inlets (8), wherein the water inlets (8) are higher than the water outlets (7) along the direction of the first permeation tube (4), and further comprises: There are a plurality of clean water tanks (9) arranged around the rainwater recovery tank (2), and the plurality of clean water tanks (9) and the rainwater recovery tank (2) are connected via a plurality of water inlets (8) and water outlets (7); There are a plurality of water pumps (10), and the plurality of water pumps (10) are respectively arranged at the bottom of the plurality of clean water tanks (9) in a one-to-one correspondence; A filter screen (18) is arranged in the clean water tank (9), and the height of the filter screen (18) is located between the water inlet (8) and the water pump (10); There are a plurality of water receiving parts (11), the lower ends of the water receiving parts (11) are connected to the outlet of the water pump (10), and the upper ends of the water receiving parts (11) extend to the ground surface.

4. A rainwater recycling device for sponge city according to claim 3, characterized in that: The water inlet (8) includes a first communication end located in the rainwater recovery chamber (2), and the opening of the first communication end faces upward; An expansion block (12) is provided above the first communication end, and the expansion block (12) is connected to the first communication end via a first elastic member (13); When the water level in the rainwater recovery tank (2) is lower than the water inlet (8), the expansion block (12) is pressed against the first communication end under the tension of the first elastic member (13), and the opening of the first communication end is blocked, and the water inlet (8) is in a closed state; When the water level in the rainwater recovery bin (2) is higher than the water inlet (8), the expansion block (12) moves upward under the action of buoyancy, and the water inlet (8) is in an open state.

5. The rainwater recycling device for sponge city according to claim 3, characterized in that: Also includes: A one-way circulation component (20) is arranged on the water outlet (7).

6. A rainwater recycling device for sponge city according to claim 5, characterized in that: The one-way circulation component (20) includes: A mounting block (14) is arranged on the water outlet (7), the mounting block (14) having a sliding groove (15), and a protrusion (16) on a side of the sliding groove (15) facing the clean water tank (9); A sliding block (17) is slidably arranged in the sliding groove (15), and the end of the sliding block (17) facing the clean water tank (9) is tapered. A second elastic member (19) is provided on the side of the sliding block (17) facing away from the clean water tank (9), and the second elastic member (19) is used to provide a force for the sliding block (17) to approach the protrusion (16).

7. The rainwater recycling device for sponge city according to claim 4, characterized in that: When the clean water tank (9) is full of water, the pressure exerted by the water in the clean water tank (9) on the expansion block (12) is less than the elastic force of the first elastic member (13).

8. The rainwater recycling device for sponge city according to claim 2, characterized in that: The filter material (6) is pebbles.

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