Municipal sidewalk permeable pavement structure and method based on sponge city concept

Abstract

The invention discloses a municipal sidewalk permeable paving structure based on a sponge city concept and a paving method, and relates to the field of sidewalk permeable paving structures.The municipal sidewalk permeable paving structure comprises a plurality of permeable plates and a drainage ditch frame, a plurality of first water through grooves are formed in the permeable plates, and a plurality of water inlet holes communicated with the first water through grooves are formed in the tops of the permeable plates; according to the municipal sidewalk permeable paving structure based on the sponge city concept and the paving method, rainwater enters the first water through groove through the water inlet hole in the top of the permeable plate and then flows into the drainage ditch frame through the second water through groove. The drainage ditch frame can collect rainwater in a centralized mode, in heavy rain, redundant rainwater is discharged through the drainage pipe on the water baffle, and water accumulation is avoided. The drainage mode can cope with rainfall of different intensities, ensures that urban roads are smooth in rainy days, and reduces the waterlogging risk. Meanwhile, rainwater is discharged through the water through grooves and cannot enter the laid foundation surface, the connecting position of the foundation surface and the permeable plate is prevented from loosening, and the mounting stability of the permeable plate is further improved.

Description

Technical Field

[0001] This invention relates to permeable pavement structure technology for sidewalks, specifically to permeable pavement structures and laying methods for municipal sidewalks based on the concept of sponge cities. Background Technology

[0002] With the development of urbanization, the area of ​​impermeable surfaces such as concrete and asphalt pavements is constantly increasing. This change has significantly altered urban surface runoff, making it difficult for rainwater to infiltrate naturally, leading to increasingly serious urban flooding problems. During heavy rains, low-lying urban areas often suffer from severe flooding, which not only affects the normal operation of urban traffic and causes great inconvenience to residents, but also may cause serious damage to urban infrastructure and threaten the lives and property of residents.

[0003] Meanwhile, traditional urban drainage systems primarily focus on the rapid removal of rainwater, often neglecting its resource utilization. Large amounts of valuable rainwater are directly discharged into sewers without effective collection and utilization, resulting in water waste. Furthermore, in terms of the urban ecological environment, the increase in impermeable surfaces leads to lower urban air humidity, deterioration of local microclimates, and exacerbation of the urban heat island effect. Urban vegetation also suffers from insufficient water, hindering its growth and impacting the city's ecological balance and landscape.

[0004] The concept of "sponge city" has emerged as a new urban stormwater management concept. It emphasizes that cities, like sponges, possess good resilience in adapting to environmental changes and responding to natural disasters caused by rainwater. By strengthening urban planning, construction, and management, and fully leveraging the absorption, infiltration, and slow release functions of ecosystems such as buildings, roads, green spaces, and water systems, it effectively controls rainwater runoff and achieves a city development model based on natural accumulation, natural infiltration, and natural purification.

[0005] In the field of sidewalk construction, while existing permeable pavement structures can achieve rainwater infiltration to a certain extent, they generally suffer from a lack of functionality. Most permeable pavement structures only focus on rainwater infiltration, with insufficient consideration given to rainwater collection, purification, and reuse. For example, while some permeable bricks allow rainwater to seep into the ground, they cannot effectively guide and collect rainwater during the infiltration process, resulting in some rainwater still accumulating near the foundation surface and affecting the stability of the sidewalk.

[0006] In summary, developing a permeable pavement structure and laying method for municipal sidewalks based on the concept of sponge cities is of great practical significance for solving problems such as waste of rainwater resources and weak connection of permeable panels in existing technologies, and achieving efficient infiltration, collection and reuse of rainwater. This is of great practical significance for building sponge cities and improving the comprehensive carrying capacity of cities. Summary of the Invention

[0007] The purpose of this invention is to provide a permeable pavement structure and laying method for municipal sidewalks based on the concept of sponge cities, so as to solve the problem that existing technologies cannot effectively collect and utilize rainwater.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a permeable pavement structure for municipal sidewalks based on the concept of sponge cities, comprising multiple permeable panels and a drainage ditch frame. Multiple first water channels are formed within the permeable panels, and multiple water inlet holes communicating with the first water channels are formed on the top of the permeable panels. A protruding block is provided on the permeable panel, and a second water channel communicating with the first water channels is formed on one side of the protruding block. A connecting groove that is slidably connected to the protruding block is formed on one side of the permeable panel, and a filter plate that is slidably connected to and fixedly connected to the drainage ditch frame is formed on one side of the protruding block. The second water tank is equipped with a water inlet pipe, and multiple atomizing nozzles are fixedly connected to the outer surface of the water inlet pipe. An electromagnetic valve is installed on the water inlet pipe, and a water supply pipe is fixedly connected to one end of the water inlet pipe. A first water supply pump is fixedly connected to one end of the water supply pipe, and an electromagnetic valve is installed on the water supply pipe. The drainage ditch frame is equipped with a water purification mechanism connected to the water supply pipe, which is used to purify the rainwater collected in the drainage ditch frame.

[0009] Furthermore, the water purification mechanism includes a feeding box fixedly connected to the drainage ditch frame. A second water pump is fixedly connected to one side of the feeding box via a pipe. A feeding pipe is fixedly connected to the output end of the second water pump. An electromagnetic valve is installed on the feeding pipe. A conveying box is installed on the feeding pipe. A conveying pipe is rotatably connected to the conveying box. Multiple discharge pipes are fixedly connected to the conveying pipe. A transmission mechanism connected to a water supply pipe is driven to one end of the conveying pipe. The transmission mechanism is used to drive the conveying pipe to rotate.

[0010] Furthermore, the transmission mechanism includes a transmission box fixedly connected to the water supply pipe, a transmission shaft rotatably connected to the transmission box, one end of the transmission shaft being fixedly connected to the material conveying pipe, and multiple transmission blades fixedly connected to the outer surface of the transmission shaft.

[0011] Furthermore, a feed pipe is fixedly connected to the top of the feed box, and a sealing block is threadedly connected to the top of the feed pipe.

[0012] Furthermore, a first sealing box is fixedly connected to the top of the feeding box, a rotating drive is fixedly connected inside the first sealing box, a stirring shaft that is rotatably connected to the output end of the rotating drive is fixedly connected to the feeding box, and multiple stirring columns are fixedly connected to the outer surface of the stirring shaft.

[0013] Furthermore, a second sealing box is fixedly connected inside the drainage ditch frame, a blower is fixedly connected inside the second sealing box, an air supply pipe is fixedly connected to the output end of the blower and fixedly connected to the feed pipe, an electromagnetic valve is installed on the air supply pipe, and an air inlet pipe is fixedly connected to the second sealing box.

[0014] Furthermore, a water baffle is fixedly connected inside the drainage ditch frame, and a drainage pipe is provided on the water baffle.

[0015] Furthermore, a settling groove is provided on the top of the permeable plate, and a filter screen frame is slidably connected in the settling groove.

[0016] Furthermore, a filter screen is installed on the suction pipe of the first water supply pump.

[0017] The method for laying permeable pavement structures for municipal sidewalks based on the concept of sponge cities includes the following steps: Step 1: Lay and install the base layer of the sidewalk, and at the same time install the drainage ditch frame on the side of the sidewalk; Step 2: Lay multiple permeable panels on the base layer and fix the filter plate on the drainage ditch frame. At the same time, install the permeable panels on the side onto the filter plate. Step 3: Securely install the water purification mechanism onto the permeable plate and drainage ditch frame.

[0018] Compared with existing technologies, the permeable pavement structure and laying method for municipal sidewalks based on the concept of sponge cities provided by this invention have the following beneficial effects: This permeable pavement structure boasts excellent rainwater infiltration and drainage capabilities. During rainfall, rainwater enters the first drainage channel through the inlet holes at the top of the permeable panel, and then flows into the drainage ditch frame through the second drainage channel. The drainage ditch frame collects rainwater, and in heavy rain, excess rainwater is discharged through drain pipes on the flood barrier, preventing water accumulation. This drainage method can handle rainfall of varying intensities, ensuring unobstructed urban roads during rainy weather and reducing the risk of flooding. Simultaneously, rainwater discharged through the drainage channels prevents it from entering the paved foundation surface, preventing loosening at the connection between the foundation and the permeable panel, further enhancing the stability of the permeable panel installation, providing a stable and comfortable walking surface for sidewalks, and protecting the lives and property of residents.

[0019] This structure is of great significance for improving the urban ecological environment and realizing the recycling of water resources. On sunny days, the first water pump draws water collected in the drainage ditch frame, which, after passing through the supply and inlet pipes, is sprayed out as a mist from atomizing nozzles. This humidifies the air, increases humidity around pedestrian walkways, improves the local microclimate, and creates a comfortable travel environment for pedestrians. The mist also moistens green plants, providing them with water, promoting growth, enhancing urban greening, and strengthening the ecological landscape. Furthermore, the water purification system can purify the collected rainwater, which can then be used for non-potable purposes such as urban greening irrigation and road washing, realizing rainwater resource utilization, improving water resource recycling rates, alleviating urban water shortages, and aligning with the concept of sustainable development. Attached Figure Description

[0020] The accompanying drawings, which are provided to further illustrate the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0021] Figure 1 This is a first perspective view of the external structure of the present invention; Figure 2 This is a first perspective view of the internal structure of the present invention; Figure 3 This is a second perspective view of the internal structure of the present invention; Figure 4 This is a third perspective view of the internal structure of the present invention; Figure 5 This is a side view of the internal structure of the present invention; Figure 6 This is a perspective view of the permeable plate connection of the present invention; Figure 7 This is a side view of the internal structure of the transmission box of the present invention; Figure 8 For the present invention Figure 3 Enlarged view of A in the middle; Figure 9 For the present invention Figure 4 A magnified view of B in the middle.

[0022] 1-Permeable plate; 2-Drainage ditch frame; 3-First water passage trough; 4-Water inlet hole; 5-Protrusion block; 6-Second water passage trough; 7-Connecting groove; 8-Filter plate; 9-Water inlet pipe; 10-Atomizing nozzle; 11-Water supply pipe; 12-First water supply pump; 21-Feeding box; 22-Second water pump; 23-Feeding pipe; 24-Transportation box; 25-Transportation pipe; 26-Discharge pipe; 31-Transmission box; 32-Transmission shaft; 33-Transmission blade; 41-Feeding pipe; 42-Sealing block; 51-First sealing box; 52-Rotation drive component; 53-Agitating shaft; 54-Agitating column; 61-Second sealing box; 62-Blower; 63-Air supply pipe; 64-Air inlet pipe; 71-Water baffle; 72-Drainage pipe; 81-Settling trough; 82-Filter screen frame. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the present invention will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Example 1

[0024] Please see Figures 1 to 9 As shown, the present invention provides a permeable pavement structure for municipal sidewalks based on the concept of sponge city, including multiple permeable panels 1 and drainage ditch frames 2. Multiple first water passage channels 3 are opened in the permeable panels 1, and multiple water inlet holes 4 communicating with the first water passage channels 3 are opened on the top of the permeable panels 1. A protrusion block 5 is provided on the permeable panels 1. A second water passage channel 6 communicating with the first water passage channels 3 is opened on one side of the protrusion block 5. A connecting groove 7 slidably connected to the protrusion block 5 is opened on one side of the permeable panels 1. A filter plate 8 fixedly connected to the drainage ditch frame 2 is slidably connected to one side of the protrusion block 5.

[0025] The second water tank 6 is equipped with a water inlet pipe 9. Multiple atomizing nozzles 10 are fixedly connected to the outer surface of the water inlet pipe 9. A solenoid valve is installed on the water inlet pipe 9. A water supply pipe 11 is fixedly connected to one end of the water inlet pipe 9. A first water supply pump 12 is fixedly connected to one end of the water supply pipe 11. A solenoid valve is installed on the water supply pipe 11.

[0026] A water purification mechanism connected to the water supply pipe 11 is installed inside the drainage ditch frame 2. The water purification mechanism is used to purify the rainwater collected in the drainage ditch frame 2. A water baffle 71 is fixedly connected inside the drainage ditch frame 2. A drainage pipe 72 is installed on the water baffle 71. A settling trough 81 is opened on the top of the permeable plate 1. A filter screen frame 82 is slidably connected in the settling trough 81. A filter screen plate is installed on the suction pipe of the first water supply pump 12.

[0027] The drainage ditch frame 2 is installed on the side of the sidewalk, and then the sidewalk subgrade is leveled to ensure that the ground flatness meets the requirements. Next, multiple permeable panels 1 are laid on the sidewalk. During installation, the protrusions 5 on one permeable panel 1 are inserted into the connecting grooves 7 on another permeable panel 1 to achieve a stable connection between each panel. This connection method effectively prevents individual permeable panels 1 from warping, further improving the flatness of the laid permeable panels 1 and providing a stable and comfortable walking surface for the sidewalk. After installation, a filter frame 82 is placed in the sinkhole 81 on the permeable panel 1. The filter frame 82 can perform preliminary filtration of rainwater entering the permeable panel, and its portable disassembly design facilitates subsequent cleaning of the filter frame 82, ensuring the filtration effect.

[0028] When it rains, rainwater first enters the first drainage channel 3 through the inlet holes 4 at the top of the permeable panel 1. The first drainage channel 3 guides the rainwater, allowing it to flow in an orderly manner. Subsequently, the water flows through the first drainage channel 3 into the second drainage channel 6 and then into the drainage ditch frame 2 for drainage. The drainage ditch frame 2 collects rainwater, and when the rainfall is heavy, excess water is discharged through the drain pipe 72 on the water-blocking plate 71, preventing overflow and water accumulation. This drainage method can effectively cope with rainfall of varying intensities, ensuring that urban roads remain unobstructed during rainy days and reducing the risk of flooding. At the same time, the drainage of rainwater through the first and second drainage channels on the permeable panel prevents water from entering the paved foundation surface, thus avoiding loosening at the connection between the foundation surface and the permeable panel 1 and further improving the stability of the permeable panel 1 installation.

[0029] When the weather is clear, the first water pump 12 starts working, drawing water collected in the drainage ditch frame 2 and supplying it into the water supply pipe 11. The water supply pipe 11 then flows the water into the inlet pipe 9, and simultaneously opens the solenoid valve on the inlet pipe 9. The inlet pipe 9 then sprays water in the form of atomizing nozzles 10. The atomizing nozzles 10 spray water mist into the first water channel 3, and the water mist is then sprayed into the air through the first water channel 3 and the inlet hole 4. This process humidifies the air, effectively increasing the air humidity around the pedestrian walkway, improving the local urban microclimate, and creating a more comfortable travel environment for pedestrians. At the same time, the sprayed water mist also moistens the greenery along the side of the pedestrian walkway, providing necessary moisture, promoting plant growth, enhancing the urban greening effect, and strengthening the city's ecological landscape function. Example 2

[0030] Based on Example 1, please refer to Figures 2 to 9As shown, the water purification mechanism includes a feeding box 21 fixedly connected to the drainage ditch frame 2. A second water pump 22 is fixedly connected to one side of the feeding box 21 via a pipe. A feeding pipe 23 is fixedly connected to the output end of the second water pump 22. An electromagnetic valve is installed on the feeding pipe 23. A conveying box 24 is installed on the feeding pipe 23. A conveying pipe 25 is rotatably connected to the conveying box 24. Multiple discharge pipes 26 are fixedly connected to the conveying pipe 25. A transmission mechanism connected to the water supply pipe 11 is driven to one end of the conveying pipe 25. The transmission mechanism is used to drive the conveying pipe 25 to rotate.

[0031] The transmission mechanism includes a transmission box 31 fixedly connected to the water supply pipe 11, a transmission shaft 32 rotatably connected to the transmission box 31, one end of the transmission shaft 32 being fixedly connected to the material conveying pipe 25, and multiple transmission blades 33 fixedly connected to the outer surface of the transmission shaft 32.

[0032] The top of the feeding box 21 is fixedly connected to the feeding pipe 41, and the top of the feeding pipe 41 is threadedly connected to the sealing block 42.

[0033] A first sealing box 51 is fixedly connected to the top of the feeding box 21. A rotating drive 52 is fixedly connected inside the first sealing box 51. A stirring shaft 53, which is rotatably connected to the output end of the rotating drive 52, is fixedly connected to the feeding box 21. Multiple stirring columns 54 are fixedly connected to the outer surface of the stirring shaft 53. Aerobic bacteria powder and nutrient solution are fed into the feeding box 21 through the feed pipe 41. Then, the rotating drive 52 drives the stirring shaft 53 to rotate, and the stirring shaft 53 drives the stirring columns 54 to rotate, so that the aerobic bacteria are evenly mixed in the nutrient solution.

[0034] A second sealing box 61 is fixedly connected inside the drainage ditch frame 2. A blower 62 is fixedly connected inside the second sealing box 61. An air supply pipe 63, which is fixedly connected to the output end of the blower 62 and is fixedly connected to the feed pipe 23, is fixedly connected to the air supply pipe 63. An electromagnetic valve is installed on the air supply pipe 63. An air inlet pipe 64 is fixedly connected to the second sealing box 61.

[0035] When the water quality in the drainage ditch frame 2 changes, the water purification mechanism starts working. First, the pre-prepared aerobic bacteria liquid in the conveying tank 24 is introduced into the supply pipe 23 through the second water pump 22 and the pipeline. Then, the supply pipe 23 transports the aerobic bacteria liquid to the conveying tank 24, and then through the conveying tank 24 to the conveying pipe 25. At the same time, the conveying pipe 25 transports the liquid to multiple discharge pipes 26 for discharge. During the discharge process, the first water supply pump 12 supplies water to the water supply pipe 11. The water flows into the transmission box 31, driving the transmission blades 33 inside the transmission box 31 to rotate. The transmission blades 33 drive the transmission shaft 32 to rotate, which in turn drives the conveying pipe 25 to rotate. The conveying pipe 25 then drives the multiple discharge pipes 26 to rotate. During the rotation of the discharge pipes 26, the aerobic bacteria are evenly distributed into the rainwater collected in the drainage ditch frame 2, while also promoting the flow of rainwater in the drainage ditch frame 2, so that the aerobic bacteria can evenly carry out biological purification with the collected rainwater. This method of evenly spreading the material and promoting water flow significantly increases the contact area and reaction efficiency between aerobic bacteria and rainwater, enabling more effective removal of pollutants such as organic matter, nitrogen, and phosphorus from rainwater, reducing indicators such as chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of rainwater, and significantly improving rainwater quality.

[0036] Subsequently, the solenoid valve on the feed pipe 23 is closed, and the solenoid valve on the air supply pipe 63 is opened. Air is supplied to the air supply pipe 63 via the blower 62 inside the second sealed box 61. The gas enters the conveying pipe 25 and then flows through the conveying pipe 25 into the discharge pipe 26, oxygenating the water in the drainage ditch frame 2. Aerobic bacteria can better carry out metabolic activities in an aerobic environment, continuously decomposing pollutants in the water and further effectively purifying the water in the drainage ditch frame 2. Simultaneously, the purified rainwater quality is significantly improved, making it suitable for non-potable water uses such as urban greening irrigation and road washing. This realizes the resource utilization of rainwater, improves the water resource recycling rate, and alleviates the problem of urban water shortage.

[0037] In summary, this permeable pavement structure for municipal sidewalks, based on the concept of sponge cities, achieves efficient rainwater infiltration, discharge, collection, purification, and reuse through ingenious structural design and a reasonable workflow. In addressing urban rainwater runoff, it effectively reduces urban flooding, ensuring normal traffic flow and protecting residents' lives and property. Regarding improving the urban ecological environment, it increases air humidity, promotes plant growth, and purifies rainwater, creating a more livable environment for the city. In terms of water resource utilization, it realizes the resource recovery of rainwater, improves the water recycling rate, and aligns with the concept of sustainable development. This structure has significant economic, social, and environmental benefits and holds important application value for building sponge cities and enhancing the comprehensive carrying capacity of cities.

[0038] Example 3, based on Examples 1 and 2, describes a method for laying permeable pavement structures for municipal sidewalks based on the concept of sponge cities, including the following steps: Step 1: Lay and install the base layer of the sidewalk, and at the same time install the drainage ditch frame 2 on the side of the sidewalk; Step 2: Lay multiple permeable boards on the base layer and fix the filter board 8 on the drainage ditch frame 2. At the same time, install the permeable board 1 on the side on the filter board 8. Step 3: Fix the water purification mechanism onto the permeable plate 1 and the drainage ditch frame 2.

[0039] Working principle: When it rains, rainwater first enters the first drainage channel 3 through the inlet hole 4 at the top of the permeable panel 1. The first drainage channel 3 guides the rainwater, allowing it to flow in an orderly manner. Subsequently, the water flows through the first drainage channel 3 into the second drainage channel 6 and then into the drainage ditch frame 2 for drainage. The drainage ditch frame 2 collects the rainwater. When the rainfall is heavy, excess water is discharged through the drain pipe 72 on the water-blocking plate 71, preventing overflow and water accumulation. This drainage method can effectively cope with rainfall of varying intensities, ensuring that urban roads remain unobstructed during rainy days and reducing the risk of flooding. At the same time, the drainage of rainwater through the first and second drainage channels on the permeable panel prevents water from entering the paved foundation surface, thus avoiding loosening at the connection between the foundation surface and the permeable panel 1 and further improving the stability of the permeable panel 1 installation.

[0040] When the weather is clear, the first water pump 12 starts working, drawing water collected in the drainage ditch frame 2 and supplying it into the water supply pipe 11. The water supply pipe 11 then flows the water into the inlet pipe 9, and simultaneously opens the solenoid valve on the inlet pipe 9. The inlet pipe 9 then sprays water in the form of atomizing nozzles 10. The atomizing nozzles 10 spray water mist into the first water channel 3, and the water mist is then sprayed into the air through the first water channel 3 and the inlet hole 4. This process humidifies the air, effectively increasing the air humidity around the pedestrian walkway, improving the local urban microclimate, and creating a more comfortable travel environment for pedestrians. At the same time, the sprayed water mist also moistens the greenery along the side of the pedestrian walkway, providing necessary moisture, promoting plant growth, enhancing the urban greening effect, and strengthening the city's ecological landscape function.

[0041] When the water quality in the drainage ditch frame 2 changes, the water purification mechanism starts working. First, the pre-prepared aerobic bacteria liquid in the conveying tank 24 is introduced into the supply pipe 23 through the second water pump 22 and the pipeline. Then, the supply pipe 23 transports the aerobic bacteria liquid to the conveying tank 24, and then through the conveying tank 24 to the conveying pipe 25. At the same time, the conveying pipe 25 transports the liquid to multiple discharge pipes 26 for discharge. During the discharge process, the first water supply pump 12 supplies water to the water supply pipe 11. The water flows into the transmission box 31, driving the transmission blades 33 inside the transmission box 31 to rotate. The transmission blades 33 drive the transmission shaft 32 to rotate, which in turn drives the conveying pipe 25 to rotate. The conveying pipe 25 then drives the multiple discharge pipes 26 to rotate. During the rotation of the discharge pipes 26, the aerobic bacteria are evenly distributed into the rainwater collected in the drainage ditch frame 2, while also promoting the flow of rainwater in the drainage ditch frame 2, so that the aerobic bacteria can evenly carry out biological purification with the collected rainwater. This method of evenly spreading the material and promoting water flow significantly increases the contact area and reaction efficiency between aerobic bacteria and rainwater, enabling more effective removal of pollutants such as organic matter, nitrogen, and phosphorus from rainwater, reducing indicators such as chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of rainwater, and significantly improving rainwater quality.

[0042] Subsequently, the solenoid valve on the feed pipe 23 is closed, and the solenoid valve on the air supply pipe 63 is opened. Air is supplied to the air supply pipe 63 via the blower 62 inside the second sealed box 61. The gas enters the conveying pipe 25 and then flows through the conveying pipe 25 into the discharge pipe 26, oxygenating the water in the drainage ditch frame 2. Aerobic bacteria can better carry out metabolic activities in an aerobic environment, continuously decomposing pollutants in the water and further achieving effective purification of the water in the drainage ditch frame 2.

[0043] The scope of protection claimed by this invention is not limited to the specific embodiments described above. For those skilled in the art, this invention can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A permeable pavement structure for municipal sidewalks based on the concept of sponge cities, characterized in that, It includes multiple permeable plates (1) and a drainage ditch frame (2). Multiple first water passage grooves (3) are provided in the permeable plates (1). Multiple water inlet holes (4) communicating with the first water passage grooves (3) are provided on the top of the permeable plates (1). A protrusion (5) is provided on the permeable plates (1). A second water passage groove (6) communicating with the first water passage groove (3) is provided on one side of the protrusion (5). A connecting groove (7) slidably connected to the protrusion (5) is provided on one side of the permeable plates (1). A filter plate (8) fixedly connected to the drainage ditch frame (2) is slidably connected to one side of the protrusion (5). The second water tank (6) is provided with an inlet pipe (9), and a plurality of atomizing nozzles (10) are fixedly connected to the outer surface of the inlet pipe (9). An electromagnetic valve is provided on the inlet pipe (9). A water supply pipe (11) is fixedly connected to one end of the inlet pipe (9). A first water supply pump (12) is fixedly connected to one end of the water supply pipe (11). An electromagnetic valve is provided on the water supply pipe (11). The drainage ditch frame (2) is equipped with a water purification mechanism connected to the water supply pipe (11), which is used to purify the rainwater collected in the drainage ditch frame (2).

2. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 1, characterized in that, The water purification mechanism includes a feeding box (21) fixedly connected to the drainage ditch frame (2). A second water pump (22) is fixedly connected to one side of the feeding box (21) via a pipe. A feeding pipe (23) is fixedly connected to the output end of the second water pump (22). An electromagnetic valve is provided on the feeding pipe (23). A conveying box (24) is provided on the feeding pipe (23). A conveying pipe (25) is rotatably connected to the conveying box (24). Multiple discharge pipes (26) are fixedly connected to the conveying pipe (25). A transmission mechanism connected to the water supply pipe (11) is driven to one end of the conveying pipe (25). The transmission mechanism is used to drive the conveying pipe (25) to rotate.

3. The permeable pavement structure for municipal sidewalks based on the sponge city concept as described in claim 2, characterized in that, The transmission mechanism includes a transmission box (31) fixedly connected to the water supply pipe (11), a transmission shaft (32) rotatably connected to the transmission box (31), one end of the transmission shaft (32) fixedly connected to the material conveying pipe (25), and multiple transmission blades (33) fixedly connected to the outer surface of the transmission shaft (32).

4. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 2, characterized in that, The top of the feeding box (21) is fixedly connected to the feed pipe (41), and the top of the feed pipe (41) is threadedly connected to the sealing block (42).

5. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 2, characterized in that, The top of the feeding box (21) is fixedly connected to a first sealing box (51), and a rotating drive (52) is fixedly connected inside the first sealing box (51). The output end of the rotating drive (52) is fixedly connected to a stirring shaft (53) that is rotatably connected to the feeding box (21). Multiple stirring columns (54) are fixedly connected to the outer surface of the stirring shaft (53).

6. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 2, characterized in that, A second sealing box (61) is fixedly connected inside the drainage ditch frame (2). A blower (62) is fixedly connected inside the second sealing box (61). An air supply pipe (63) is fixedly connected to the output end of the blower (62) and is fixedly connected to the feed pipe (23). An electromagnetic valve is provided on the air supply pipe (63). An air inlet pipe (64) is fixedly connected to the second sealing box (61).

7. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 1, characterized in that, A baffle plate (71) is fixedly connected inside the drainage ditch frame (2), and a drainage pipe (72) is provided on the baffle plate (71).

8. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 1, characterized in that, The top of the permeable plate (1) is provided with a settling groove (81), and a filter screen (82) is slidably connected in the settling groove (81).

9. The permeable pavement structure for municipal sidewalks based on the sponge city concept according to claim 1, characterized in that, The first water supply pump (12) has a filter screen plate installed on its suction pipe.

10. The method for laying permeable pavement structures for municipal sidewalks based on the concept of sponge cities, as described in any one of claims 1-9, is characterized in that, Includes the following steps: Step 1: Lay and install the base layer of the sidewalk, and at the same time install the drainage ditch frame (2) on the side of the sidewalk; Step 2: Lay multiple permeable boards on the base layer and fix the filter board (8) on the drainage ditch frame (2), while installing the permeable board (1) on the side on the filter board (8); Step 3: Fix the water purification mechanism on the permeable plate (1) and the drainage ditch frame (2).

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