Rainwater infiltration and storage system for spongy transformation

Abstract

The invention discloses a spongy transformed rainwater seepage and storage system, and relates to the technical field of rainwater seepage systems. The spongy transformed rainwater seepage and storage system comprises a permeable pavement layer, a water seepage tank, a water supply tank, a water storage tank and a water pumping device. The water seepage box comprises a side coaming, a water seepage transverse plate, a plurality of upper supporting columns and a solid transverse plate; the upper supporting column is supported between the water seepage transverse plate and the solid transverse plate; the water seepage transverse plates and the solid transverse plates are surrounded by the side surrounding plates. The water seepage box is divided into an upper opening groove above the water seepage transverse plate and a water passing cabinet between the water seepage transverse plate and the solid transverse plate; and the permeable pavement layer is mounted in the upper open slot. The water passing cabinet communicates with the water storage tank through a transfer pipe. The water supply tank communicates with the water passing cabinet through a water injection pipe. The water inlet end of the water pumping device is connected with the water storage tank; the water storage tank is provided with an overflow mechanism. The system is high in drainage efficiency during raining, the pavement can be quickly dried after raining, the permeable pavement layer can be moistened in high-temperature days, and the pavement temperature is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rainwater leakage systems, and in particular to a rainwater infiltration and storage system transformed into a sponge. Background Art

[0002] Old residential areas generally have problems such as high building density and low greening rate. The low greening rate and the continuous hardening of the ground: on the one hand, the ground's infiltration of rainwater is reduced, the runoff speed is accelerated, the rainwater runoff generation time is advanced in the rainy season, and the total amount of rainwater runoff is significantly increased compared to the natural runoff process; on the other hand, the low greening rate leads to a small shade area in the community in summer, and the community roads are basically exposed to the sun, the road surface temperature is high, and the heat of the road surface is transferred to the air, making the air temperature above the road surface high, and residents feel very hot when walking on the road surface. Summary of the invention

[0003] In view of the above problems, this application proposes a rainwater infiltration and storage system with sponge transformation, which is suitable for the transformation of roads and green spaces in old communities to improve drainage efficiency and cool down the hot road surface in summer.

[0004] A rainwater infiltration and storage system transformed into a sponge comprises a permeable pavement layer, a water infiltration tank, a water supply trough, a water storage tank and a pumping device.

[0005] The seepage box includes side panels, seepage transverse plates, a number of upper support columns and solid transverse plates; each of the upper support columns supports the upper seepage transverse plates and the lower solid transverse plates; the side panels are attached to the peripheral sides of the seepage transverse plates and the peripheral sides of the solid transverse plates; the seepage box is divided into an upper open groove above the seepage transverse plates and a water passage between the seepage transverse plates and the solid transverse plates; the permeable pavement layer is installed in the upper open groove; the upper surface of the permeable pavement layer is higher than the upper edge of the side panels; the upper edge of the side panels is higher than the upper edge of the water supply trough, and the overflow water from the upper edge of the side panels is arranged to be guided to the water supply trough.

[0006] The water-passing pavilion is connected to the water storage tank through a transfer pipe; a first automatic valve is arranged on the transfer pipe; the water supply tank is connected to the water-passing pavilion through a water injection pipe; a second automatic valve is arranged on the water injection pipe; the water inlet end of the water pumping device is connected to the water storage tank, and the water outlet end leads to the water supply tank. The water storage tank is provided with an overflow mechanism.

[0007] By adopting the above technical solution, the system can infiltrate and store water and cool down the high-temperature road surface. The operation method is as follows: when it rains, open the first automatic valve and close the second automatic valve. On the one hand, rainwater can quickly infiltrate the permeable road surface layer to the water pavilion, and then flow to the water storage tank through the transfer pipe for water storage. On the other hand, rainwater can flow from the permeable road surface layer to the water supply tank, and finally overflow from the water supply tank. After the rain stops, the water in the upper opening tank and the water pavilion gradually flows to the water storage tank through the transfer pipe, and then overflows from the water storage tank. After the self-flow ends, the permeable road surface layer can be quickly dried after the rain stops, and the rainwater remains in the water storage tank and the water supply tank respectively. When the permeable road surface layer needs to be cooled in hot weather, the first automatic valve can be closed and the second automatic valve can be opened. Water flows from the water supply tank to the water pavilion, the water level rises and wets or soaks the lower part of the permeable road surface layer, and the water gradually wets to the top of the permeable road surface layer due to capillary action and evaporates, thereby reducing the road surface temperature. When the road surface does not need to be cooled after high temperatures, the first automatic valve is opened and the second automatic valve is closed, and water flows to the water storage tank. When the water in the water supply tank is insufficient, a part of the water in the water storage tank can be pumped to the water supply tank through the pumping device to complete the cycle. When the water in the system gradually decreases to the point where the cycle cannot be completed and there is no rain, tap water can be added to the water supply tank to maintain the water cycle.

[0008] A preferred solution for the sponge-transformed rainwater infiltration and storage system is that the rainwater infiltration and storage system also includes a guide plate, one side of which seamlessly fits the side panel, and the other side seamlessly fits the upper edge of the water supply trough; the side of the guide plate connected to the side panel is not lower than the side connected to the upper edge of the water supply trough.

[0009] By adopting the above technical solution, water in the permeable pavement layer and the upper opening groove can overflow horizontally into the water supply groove, so that the road surface can maintain a shallow water layer or no obvious water layer when it rains, making it convenient for people to walk.

[0010] A preferred solution of the rainwater infiltration and storage system transformed into a sponge is that the water injection pipe is connected to the bottom of the water supply tank. The interface between the water injection pipe and the water supply tank is higher than the water infiltration horizontal plate. The capacity of the water supply tank is 2 to 10 times the capacity of the water passage pavilion. The capacity of the water storage tank is 2 to 10 times the capacity of the water supply tank.

[0011] By adopting the above technical solution, all the water in the water supply tank can flow to the water passing pavilion and fill the water passing pavilion to wet the permeable road surface layer. The water storage tank can replenish sufficient water for the water supply tank.

[0012] A preferred solution of the rainwater infiltration and storage system transformed into a sponge is that the infiltration tank further includes a bottom plate and a plurality of lower support columns; the bottom plate is arranged below the solid horizontal plate; the plurality of lower support columns are supported between the solid horizontal plate and the solid plate; the side panels surround the plurality of lower support columns and are seamlessly connected to the peripheral side of the bottom plate. The bottom plate is flush with the bottom of the water storage tank.

[0013] By adopting the above technical solution, the bottom end of the seepage tank and the bottom end of the water storage tank are aligned, which facilitates the installation of the system on the soil layer.

[0014] A preferred solution for the sponge-transformed rainwater infiltration and storage system is that the connection port between the transfer pipe and the water storage tank is lower than the connection port between the transfer pipe and the water transfer pavilion.

[0015] By adopting the above technical solution, the design enables the water in the water-passing pavilion to be fully injected into the water storage tank.

[0016] A preferred solution for the sponge-transformed rainwater infiltration and storage system is that an overflow port is provided in the water storage tank, and the overflow port is connected to the overflow port by an external overflow pipe, and the overflow port and the overflow pipe constitute the overflow mechanism; the overflow port is lower than the connection port between the transfer pipe and the water-passing pavilion.

[0017] By adopting the above technical solution, the structure is conducive to draining the water in the water-passing pavilion, so that the permeable pavement layer remains dry when the temperature is not high and there is no rain.

[0018] A preferred solution for the sponge-transformed rainwater infiltration and storage system is that the rainwater infiltration and storage system also includes an air temperature sensor, a rainwater sensor and a controller; the controller is connected to the pumping device, the air temperature sensor, the rainwater sensor, the first automatic valve and the second automatic valve.

[0019] By adopting the above technical solution, when the temperature sensor and the rain sensor sense high temperature and no rain, water injection and cooling measures are implemented, and water injection and cooling measures may not be implemented in other situations.

[0020] A preferred solution of the rainwater infiltration and storage system transformed into a sponge is that the rainwater infiltration and storage system includes a first water level gauge, a second water level gauge and a third water level gauge, all of which are electrically connected to the controller. The first water level gauge is located above the second water level gauge and both are installed in the water supply tank. The first water level gauge is located at the top of the water supply tank. The third water level gauge is installed in the water storage tank, and the third water level gauge is lower than the overflow port.

[0021] By adopting the above technical solution, the water level in the water supply tank can be conveniently adjusted between the first water level gauge and the second water level gauge, and the water source can be replenished in time. A third water level gauge is set to prevent the pumping device from pumping water containing impurities at the bottom of the water storage tank.

[0022] A preferred solution for the sponge-transformed rainwater infiltration and storage system is that the capacity of the water supply trough below the second water level gauge is greater than the capacity of the water transfer pavilion.

[0023] By adopting the above technical solution, the system can maintain the water volume in the water supply tank greater than the capacity of the water passage, so that water can penetrate into the permeable pavement layer every time.

[0024] A preferred solution of the rainwater infiltration and storage system transformed into a sponge is that the pumping device includes a pumping pipe, a water pump and a vent pipe. One end of the vent pipe is connected to the water storage tank and is located above the connection port between the overflow pipe and the water storage tank. The other end of the vent pipe is located outside the water storage tank. The water inlet end of the pumping pipe is located in the water storage tank and below the third water level gauge. The water outlet end of the pumping pipe leads to the water supply tank.

[0025] By adopting the above technical solution, the air permeable pipe maintains the air pressure balance inside and outside the water storage tank so as not to increase the water pumping resistance.

[0026] In summary, the rainwater infiltration and storage system transformed by sponge transformation in this application has the following beneficial effects: when it rains, the road surface infiltrates quickly, and the system can store water to keep the road surface basically free of water when it rains. The system can inject water to moisten the road surface on hot and sunny days, cool the road surface, and improve the comfort of residents walking on the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the external structure diagram of a rainwater infiltration and storage system that has been transformed into a sponge.

[0028] Figure 2 for Figure 1 sectional view of .

[0029] Figure 3 for Figure 2 Another perspective of the picture.

[0030] Figure 4 for Figure 2 Frontal perspective view of .

[0031] Figure numerals: 1. Permeable pavement layer; 2. Seepage tank; 3. Water supply trough; 4. Water storage tank; 5. Pumping device; 6. Soil layer; 201. Side panel; 202. Seepage horizontal plate; 203. Upper support column; 204. Solid horizontal plate; 205. Upper opening trough; 206. Water-passing pavilion; 207. Bottom plate; 208. Lower support column; 209. Guide plate; 7. Transfer pipe; 8. First automatic valve; 401. Overflow port; 402. Overflow pipe; 9. Water injection pipe; 10. Second automatic valve; 11. First water level gauge; 12. Second water level gauge; 13. Third water level gauge; 501. Pumping pipe; 502. Water pump; 503. Ventilation pipe; 14. Air temperature sensor; 15. Rain sensor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] like Figure 1 A rainwater infiltration and storage system transformed into a sponge comprises a permeable pavement layer 1, an infiltration tank 2, a water supply trough 3, a water storage tank 4 and a pumping device 5.

[0034] The permeable pavement layer 1 can be permeable bricks or permeable concrete.

[0035] The system is installed on the soil layer 6, and can be installed inside a residential area to transform the road surface of the residential area, so that the permeable road surface layer 1 can be used for residents to walk on.

[0036] The permeable pavement layer 1 is installed on the top of the seepage tank 2. The water supply tank 3 is installed on the water storage tank 4, both of which are located beside the seepage tank 2. The pumping device 5 is used to pump the water in the water storage tank 4 up to the water supply tank 3. The seepage tank 2 and the water storage tank 4 are both installed on the soil layer 6.

[0037] like Figure 2 Specifically, the seepage box 2 includes a side panel 201, a seepage transverse panel 202, a plurality of upper support columns 203 and a solid transverse panel 204. The seepage transverse panel 202 and the solid transverse panel 204 are arranged horizontally and parallel to each other. The plurality of upper support columns 203 are arranged vertically and supported between the seepage transverse panel 202 and the solid transverse panel 204. The side panel 201 includes four vertical panels, which are respectively attached to the periphery of the seepage transverse panel 202 and the solid transverse panel 204.

[0038] like Figure 3, the seepage box 2, above the seepage cross plate 202 is an upper open groove 205, and between the seepage cross plate 202 and the solid cross plate 204 is a water passage 206. A sponge layer can be optionally filled in the water passage 206, and the sponge layer has a plurality of vertical holes for each upper support column 203 to pass through the vertical hole. The sponge layer can enhance the wetting effect on the permeable pavement layer 1 and filter foreign particles and the like. The seepage cross plate 202 is densely covered with a plurality of permeable holes, and the solid cross plate 204 is impermeable. The permeable pavement layer 1 is installed in the upper open groove 205 and is directly supported by the seepage cross plate 202. The upper edge of the permeable pavement layer 1 is higher than the side panel 201, so that when it rains, the water on the upper surface of the permeable pavement layer 1 can move radially to reduce water accumulation and facilitate people to walk.

[0039] The above is a structure of a water seepage box 2 , and the solid horizontal plate 204 can be directly pressed on the soil layer 6 .

[0040] like Figure 3 Another structure of the seepage box 2 is that the seepage box 2 also includes a bottom plate 207 and a plurality of lower support columns 208. The bottom plate 207 is horizontally arranged below the solid horizontal plate 204, and a plurality of lower support columns 208 are supported between the bottom plate 207 and the solid horizontal plate 204. The side panels 201 surround the bottom plate 207, and the lower edge of the side panels 201 is flush with the bottom plate 207, forming another seepage box 2, whose bottom plate 207 is pressed on the soil layer 6. The bottom plate 207 and the plurality of lower support columns 208 are provided, mainly for aligning with the bottom surface of the water storage tank 4, so that the bottom support of the entire system is stronger and not easy to tilt. The bottom plate 207 and the bottom of the water storage tank 4 are also fixedly connected by a horizontal plate to enhance the structural stability of the system.

[0041] The water supply trough 3 is a trough body with an opening on the upper surface, which can directly store water when it rains, and excess water can overflow directly. In order to facilitate overflow, the side of the water supply trough 3 away from the seepage box 2 is designed to be the lowest. Specifically, the height of the upper edge of the water supply trough 3 gradually decreases from the side close to the seepage box 2 to the side away from the seepage box 2, which is convenient for overflow. The upper edge of the water supply trough 3 and the seepage box 2 are connected by a guide plate 209, and the side of the guide plate 209 connected to the side panel 201 is not lower than the side connected to the upper edge of the water supply trough 3, so that water can flow from the permeable pavement layer 1 into the water supply trough 3, and then overflow from the water supply trough 3.

[0042] The water storage tank 4 supports the water supply tank 3. The capacity of the water storage tank 4 is designed to be 2 to 10 times, for example, 5 times, of the capacity of the water supply tank 3, so as to meet the multiple water supply needs of the water supply tank 3 and store a large amount of water when it rains.

[0043] like Figure 4The water-passing pavilion 206 and the water storage tank 4 are connected through a transfer pipe 7, and the transfer pipe 7 gradually decreases in height from one end connected to the water-passing pavilion 206 to the other end connected to the water storage tank 4, so as to facilitate the discharge of water from the water-passing pavilion 206, and a first automatic valve 8, which can be a solenoid valve, is also provided on the transfer pipe 7. In order to conveniently drain the water from the water-passing pavilion 206, the present application designs the transfer pipe 7 to be connected to the bottom of the water-passing pavilion 206.

[0044] In order to facilitate the discharge of excess water from the water storage tank 4 when it rains, the water storage tank 4 is designed to have an overflow mechanism, such as Figure 3 , that is, an overflow port 401 is provided on the side of the water storage tank 4 away from the water overflow pavilion 206, such as Figure 2 The overflow port 401 is connected to an external overflow pipe 402, and the overflow port 401 and the overflow pipe 402 form the overflow mechanism. In order to drain the water in the water-passing pavilion 206, the overflow port 401 is designed to be lower than the connection port between the transfer pipe 7 and the water-passing pavilion 206. A valve is also installed on the overflow pipe 402. When it is not raining, the valve can be closed to retain the stored water, and the retained water can be used to irrigate vegetation, etc.

[0045] The water supply tank 3 is connected to the water pavilion 206 by a water injection pipe 9, the upper end of the water injection pipe 9 is connected to the bottom of the water supply tank 3, and the lower end is connected to the water pavilion 206. The upper end of the water injection pipe 9 is higher than the water seepage horizontal plate 202, so that the water in the water supply tank 3 can be discharged into the water pavilion 206. The second automatic valve 10 is installed on the water injection pipe 9 to control whether to inject water into the water pavilion 206. The above first automatic valve 8 can be closed when the second automatic valve 10 is opened, so as to prevent the water in the water pavilion 206 from flowing back into the water storage tank 4 when the water supply tank 3 injects water into the water pavilion 206.

[0046] like Figure 4 In order to facilitate the water storage tank 4 to supply water to the water supply tank 3 in a timely and active manner, a first water level gauge 11 and a second water level gauge 12 are installed in the water supply tank 3, and a third water level gauge 13 is installed in the water storage tank 4. The first water level gauge 11 is installed on the top of the water supply tank 3, and the second water level gauge 12 is installed below the first water level gauge 11, but the capacity of the water supply tank 3 below the second water level gauge 12 is still greater than the capacity of the water passing pavilion 206, so that the water passing pavilion 206 can still be filled with the minimum water storage to wet or soak the lower half of the permeable pavement layer 1.

[0047] The third water level gauge 13 is lower than the overflow port 401. The third water level gauge 13 is designed because some impurities such as soil and gravel may accumulate at the bottom of the water tank 4. When the water level is lower than the third water level gauge 13, the pumping device 5 can stop pumping water from the water tank 4 to avoid sucking in impurities such as soil and gravel.

[0048] The pumping device 5 includes a pumping pipe 501, a water pump 502 and a vent pipe 503. The vent pipe 503 is sleeved outside the pumping pipe 501. One end of the vent pipe 503 is connected to the upper air space of the water storage tank 4, and the other end is located outside the water storage tank 4 to strengthen the pressure that the water pump 502 needs to overcome when pumping water. The pumping pipe 501 is laid from the inside of the water storage tank 4 to the upper part of the water supply tank 3. One end of the pumping pipe 501 at the water storage tank 4 is lower than the third water level gauge 13. The water pump 502 is installed on the pumping pipe 501 and supported by a frame.

[0049] The capacity of the water storage tank 4 described above is designed to be 2 to 10 times the capacity of the water supply tank 3. The capacity of the water storage tank 4 refers to the effective capacity of the water storage tank 4 below the overflow port 401. The system can also design the capacity of the water supply tank 3 to be 2 to 10 times the capacity of the water passage 206. The capacity of the water supply tank 3 is the flow rate below the first water level gauge 11. Since the first water level gauge 11 is installed on the top of the water supply tank 3, the capacity of the water supply tank 3 is the maximum capacity of the water supply tank 3. The system also preferably designs the capacity of the water supply tank 3 below the second water level gauge 12 to be greater than the capacity of the water passage 206, so as to fill the water passage 206 at one time, without the need to pump water from the water storage tank 4 to the water supply tank 3 to replenish water when filling water.

[0050] like Figure 2 In order to automatically control the water injection into the water pavilion 206 and the water pumping from the water storage tank 4 to the water supply tank 3, the rainwater infiltration and storage system transformed into a sponge also includes an air temperature sensor 14, a rainwater sensor 15 and a controller. The controller is electrically connected to the water pump 502, the air temperature sensor 14, the rainwater sensor 15, the first automatic valve 8, the second automatic valve 10, the first water level gauge 11, the second water level gauge 12 and the third water level gauge 13.

[0051] The temperature sensor 14 senses the temperature, and the high and low temperature thresholds can be set in advance in the controller. When the temperature sensed by the temperature sensor 14 reaches the high temperature threshold, and the rain sensor 15 does not sense rain, the controller can control the closing of the first automatic valve 8 and the opening of the second automatic valve 10, so that the water in the water supply tank 3 automatically flows to the water pavilion 206, gradually filling the water pavilion 206 and soaking the bottom and middle of the permeable pavement layer 1. Through capillary action, the water wets the upper surface of the permeable pavement layer 1, cooling the pavement once, and the water gradually evaporates to cool the pavement twice. When the temperature sensed by the temperature sensor 14 is lower than the low temperature threshold, the water supply to the water pavilion 206 is stopped, that is, the second automatic valve 10 is closed, and the first automatic valve 8 is opened, so that the water in the water pavilion 206 flows to the water storage tank 4.

[0052] When the rain sensor 15 senses rain, no matter whether the temperature sensed by the temperature sensor 14 reaches the high temperature threshold, water will not be injected into the water pavilion 206. At this time, the first automatic valve 8 is opened and the second automatic valve 10 is closed. Rainwater on the road surface is discharged through two paths: one is lateral runoff, the water in the permeable road surface layer 1 flows to the water supply tank 3, and then overflows from the water supply tank 3; the other is that the water in the permeable road surface layer 1 seeps downward to the water pavilion 206, then flows to the water storage tank 4, and finally overflows from the water storage tank 4. The two overflow paths improve the drainage efficiency, keep the road surface with less water or no obvious water accumulation, and the road surface can quickly return to dryness after raining.

[0053] The water supply tank 3 is replenished with water by the water storage tank 4 in the following manner: according to the feedback from the first water level gauge 11 and the second water level gauge 12, when the water level of the water supply tank 3 is between the first water level gauge 11 and the second water level gauge 12, the water supply tank 3 is not replenished with water; when the water level of the water supply tank 3 is lower than the second water level gauge 12, the water pump 502 is turned on to pump water to the water supply tank 3, and when the water level reaches the position of the first water level gauge 11, the water supply is stopped; during the above pumping process, if the water level of the water storage tank 4 is lower than the third water level gauge 13, the water supply to the water supply tank 3 is also stopped, and the water supply tank 3 can be replenished with tap water or other water sources.

[0054] The sponge-like rainwater infiltration and storage system of the present application can be used to transform pedestrian paths in scenes such as old residential areas, so that the roads can breathe like a sponge and can flexibly cope with the challenges of rainy and hot weather. It can store water when it rains and continuously cool the road surface in hot weather. There is no need to spray water on the road surface, which will not affect pedestrian travel.

[0055] Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the structures or components therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rainwater infiltration and storage system transformed into a sponge, characterized in that: It comprises a permeable pavement layer (1), a water seepage tank (2), a water supply tank (3), a water storage tank (4) and a water pumping device (5); The seepage box (2) comprises a side panel (201), a seepage transverse panel (202), a plurality of upper support columns (203) and a solid transverse panel (204); each of the upper support columns (203) supports the upper seepage transverse panel (202) and the lower solid transverse panel (204); the side panel (201) is attached to the peripheral side of the seepage transverse panel (202) and the peripheral side of the solid transverse panel (204); the seepage box (2) is divided into a side panel (201) and a side panel (202) above the seepage transverse panel (202); The upper opening groove (205) and the water-passing pavilion (206) between the water-permeable horizontal plate (202) and the solid horizontal plate (204) are provided; the permeable pavement layer (1) is installed in the upper opening groove (205); the upper surface of the permeable pavement layer (1) is higher than the upper edge of the side panel (201); the upper edge of the side panel (201) is higher than the upper edge of the water supply groove (3), and overflow water from the upper edge of the side panel (201) is directed to the water supply groove (3); The water-passing pavilion (206) is connected to the water storage tank (4) via a transfer pipe (7); a first automatic valve (8) is provided on the transfer pipe (7); the water supply tank (3) is connected to the water-passing pavilion (206) via a water injection pipe (9); a second automatic valve (10) is provided on the water injection pipe (9); the water inlet end of the water pumping device (5) is connected to the water storage tank (4), and the water outlet end leads to the water supply tank (3); and the water storage tank (4) is provided with an overflow mechanism.

2. The rainwater infiltration and storage system transformed into a sponge according to claim 1 is characterized in that: The rainwater infiltration and storage system further comprises a guide plate (209), one side of which is seamlessly fitted to the side panel (201) and the other side of which is seamlessly fitted to the upper edge of the water supply trough (3); the side of the guide plate (209) connected to the side panel (201) is not lower than the side connected to the upper edge of the water supply trough (3).

3. The rainwater infiltration and storage system transformed into a sponge according to claim 1 is characterized in that: The water injection pipe (9) is connected to the bottom of the water supply trough (3); the interface between the water injection pipe (9) and the water supply trough (3) is higher than the water seepage horizontal plate (202); the capacity of the water supply trough (3) is 2 to 10 times the capacity of the water passage pavilion (206); and the capacity of the water storage tank (4) is 2 to 10 times the capacity of the water supply trough (3).

4. The rainwater infiltration and storage system transformed into a sponge according to claim 1 is characterized in that: The seepage box (2) further comprises a bottom plate (207) and a plurality of lower support columns (208); the bottom plate (207) is arranged below the solid horizontal plate (204); the plurality of lower support columns (208) are supported between the solid horizontal plate (204) and the solid plate; the side panels (201) surround the plurality of lower support columns (208) and are seamlessly connected to the peripheral side of the bottom plate (207); the bottom plate (207) is flush with the bottom of the water storage tank (4).

5. The rainwater infiltration and storage system transformed into a sponge according to claim 1 is characterized in that: The connection port between the transfer pipe (7) and the water storage tank (4) is lower than the connection port between the transfer pipe (7) and the water transfer pavilion (206).

6. The rainwater infiltration and storage system transformed into a sponge according to claim 1 is characterized in that: The water storage tank (4) is provided with an overflow port (401), and an external overflow pipe (402) is connected to the overflow port (401); the overflow port (401) and the overflow pipe (402) constitute the overflow mechanism; the overflow port (401) is lower than the connection port between the transfer pipe (7) and the water-passing pavilion (206).

7. The rainwater infiltration and storage system transformed into a sponge according to claim 6 is characterized in that: The rainwater infiltration and storage system further comprises an air temperature sensor (14), a rainwater sensor (15) and a controller; the controller is connected to the pumping device (5), the air temperature sensor (14), the rainwater sensor (15), the first automatic valve (8) and the second automatic valve (10).

8. The rainwater infiltration and storage system transformed into a sponge according to claim 7 is characterized in that: The rainwater infiltration and storage system comprises a first water level gauge (11), a second water level gauge (12) and a third water level gauge (13), all of which are electrically connected to the controller; the first water level gauge (11) is located above the second water level gauge (12), and both are installed in the water supply tank (3); the first water level gauge (11) is located at the top of the water supply tank (3); the third water level gauge (13) is installed in the water storage tank (4), and the third water level gauge (13) is lower than the overflow port (401).

9. The rainwater infiltration and storage system transformed into a sponge according to claim 8 is characterized in that: The capacity of the water supply tank (3) below the second water level gauge (12) is greater than the capacity of the water passage pavilion (206).

10. The rainwater infiltration and storage system transformed into a sponge according to claim 8, characterized in that: The water pumping device (5) comprises a water pumping pipe (501), a water pump (502) and a ventilation pipe (503); one end of the ventilation pipe (503) is connected to the water storage tank (4) and is located above the connection port between the overflow pipe (402) and the water storage tank (4); the other end of the ventilation pipe (503) is located outside the water storage tank (4); The water inlet end of the water pumping pipe (501) is located in the water storage tank (4) and below the third water level gauge (13); the water outlet end of the water pumping pipe (501) leads to the water supply tank (3).

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