Sponge city water storage and drainage road

Abstract

The application provides a sponge city water storage and drainage road, and relates to the technical field of road water storage and drainage. A drainage well is arranged on one side of the road, a water storage pool is arranged below a vegetation planting belt, an installation pit is arranged between the water storage pool and the drainage well, a filter and purification device for filtering and sterilizing rainwater is detachably arranged in the installation pit, the water storage pool and the drainage well are communicated through the filter and purification device, the height of one end of the filter and purification device connected with the drainage well is higher than the height of the other end of the filter and purification device connected with the water storage pool, and a water supply assembly for supplying water to the vegetation planting belt is arranged on the water storage pool. Through the filter and purification device, rainwater can be collected, filtered and sterilized, so that the rainwater does not contain silt and bacteria, can be stored in the water storage pool for a long time, avoids the silt in the rainwater from depositing in the water storage pool and reducing the water storage capacity of the water storage pool, and avoids the rainwater from producing a large amount of odor and polluting the air.

Description

Technical Field

[0001] This invention relates to the field of road water storage and drainage technology, and more specifically, to a sponge city water storage and drainage road. Background Technology

[0002] A sponge city refers to a city that, like a sponge, possesses excellent "elasticity" in adapting to environmental changes and responding to natural disasters. It absorbs, stores, infiltrates, and purifies rainwater when it rains, and releases and utilizes the stored water when needed. The construction of sponge cities should adhere to principles such as ecological priority, combining natural methods with artificial measures to maximize the accumulation, infiltration, and purification of rainwater in urban areas while ensuring urban drainage and flood control safety, thereby promoting the utilization of rainwater resources and ecological environmental protection. Sponge city rainwater harvesting and drainage roads are road drainage structures capable of collecting and utilizing rainwater.

[0003] Chinese invention patent CN202111086552.5 discloses a sponge city drainage and storage road system. Rainwater flows from the drainage manholes, with some flowing directly to the main sewer manhole and the rest flowing into a water pipe and eventually into a storage tank. An automatic water supply module maintains soil moisture. When there is a large amount of rainwater in the storage tank, overflowing the self-floating component, the component rises under buoyancy, causing the sealing plate to rotate upwards. This opens the top opening of the drainage pipe, allowing excess rainwater to flow from the drainage pipe into the main sewer manhole, thus completing the discharge of excess rainwater. The system is highly automated.

[0004] However, the aforementioned rainwater collection and drainage systems do not purify or sterilize the collected rainwater. The rainwater contains a large number of microorganisms and nutrients. When rainwater is collected and stored in storage tanks without treatment, the microorganisms in the rainwater will multiply rapidly. After the dissolved oxygen in the storage tanks is consumed, anaerobic bacteria will multiply rapidly, producing large amounts of ammonia and hydrogen sulfide. The rainwater will deteriorate and produce an odor, thus affecting the surrounding environment. Using deteriorated rainwater to irrigate vegetation will also damage the health of the soil. In addition, the sediment in the rainwater will cause the storage tanks to accumulate, reducing their capacity. Moreover, the storage tanks are located underground, making them inconvenient to clean. Summary of the Invention

[0005] The purpose of this invention is to provide a sponge city drainage and water storage road that addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A sponge city drainage road includes a roadbed, a concrete layer laid on top of the roadbed, and an asphalt layer laid on top of part of the concrete layer. The road is equipped with a vegetation planting strip and a rainwater storage and drainage device. The rainwater storage and drainage device includes a drainage well and a water storage tank. The drainage well is located on one side of the asphalt layer, and the water storage tank is located below the vegetation planting strip. An installation pit is provided between the water storage tank and the drainage well. A detachable filtration and purification device for filtering and sterilizing rainwater is installed in the installation pit. The water storage tank and the drainage well are connected through the filtration and purification device. The height of the end of the filtration and purification device connected to the drainage well is higher than the height of the end of the filtration and purification device connected to the water storage tank.

[0008] The reservoir is equipped with a water supply system for supplying water to the vegetation planting area.

[0009] Furthermore, the filtration and purification device includes a housing, on which an inlet pipe and an outlet pipe are detachably installed. One end of the inlet pipe extends into a drainage well, and one end of the outlet pipe is connected to a water storage tank.

[0010] The shell has a channel, and multiple filtration and sterilization components are installed inside the shell. The inlet and outlet pipes are connected through the channel.

[0011] Furthermore, a support plate is installed on one end of the water inlet pipe inside the drainage well, and a filter cloth is installed on the support plate.

[0012] Furthermore, the housing is provided with multiple mounting cavities spaced apart, and the multiple mounting cavities are connected by channels;

[0013] The multi-stage filtration assembly includes multiple first filter layers and second filter layers, which are respectively disposed in two adjacent installation cavities. The sterilization assembly is installed in an installation cavity near the water storage tank.

[0014] Preferably, the water storage tank includes multiple water tanks spaced apart, with adjacent water tanks connected by pipes;

[0015] The water tank is equipped with a fixing component around its perimeter to prevent the roadbed from extending laterally. One end of the fixing component abuts against the roadbed section on one side of the water tank, and the other end of the fixing component...

[0016] Furthermore, the fixing component includes multiple vertically arranged limiting members and vertical plates, with the ends of the multiple limiting members near the filter purification device collectively forming a limiting plate;

[0017] The vertical plate is located on the side of the water tank away from the filtration and purification device, and the ends of multiple limiting components away from the filtration and purification device are connected to the vertical plate.

[0018] Furthermore, the limiting component includes an arc-shaped plate and a support component. The convex surface of the arc-shaped plate abuts against the roadbed section. Mounting seats are provided at both ends of the arc-shaped plate. Two adjacent mounting seats at the same height are connected to one end of the same support component. The end of the support component away from the mounting seat is connected to the side of the vertical plate.

[0019] Furthermore, the support includes a first fixed cylinder, and a plurality of second fixed cylinders are arranged around the outer periphery of the first fixed cylinder, the first fixed cylinder and the second fixed cylinders having the same length;

[0020] The first fixed cylinder has a first fixed plate at both ends, and the two ends of the second fixed cylinder are fixedly connected to the two first fixed plates respectively.

[0021] Multiple second fixing plates are also provided at equal intervals between the two first fixing plates. Both the first fixing cylinder and the second fixing cylinder pass through the second fixing plates and are fixedly connected to the second fixing plates.

[0022] Preferably, the first fixing plate near the mounting base and the second fixing plate adjacent to the first fixing plate are provided with guide grooves on their peripheral walls at intervals, and the guide grooves are opened along the length direction of the first fixing cylinder or the second fixing cylinder.

[0023] Preferably, there are multiple corrugated plates between the first fixing plate near the mounting base and the second fixing plate adjacent to the first fixing plate. One end of the corrugated plate is connected to the side wall of the first fixing plate, and the other end of the corrugated plate is connected to the side wall of the second fixing plate. The fold line of the corrugated plate is perpendicular to the axis of the first fixing cylinder.

[0024] The present invention has at least the following advantages or beneficial effects:

[0025] 1. The present invention provides a sponge city water storage and drainage road, which, by setting up a filtration and purification device, can collect, filter and sterilize rainwater, so that the rainwater is free of silt and bacteria, and can be stored in the water storage tank for a long time to meet the needs of plant irrigation. It also avoids the sedimentation of rainwater in the water storage tank, which would reduce the water capacity of the water storage tank, and also avoids the rainwater from deteriorating and producing a lot of odor, thus polluting the air.

[0026] 2. The fixing component provided in this invention can prevent the roadbed from extending towards the water tank and can prevent the edge of the roadbed from collapsing due to the weight of vehicles.

[0027] 3. The convex surface of the arc-shaped plate faces the roadbed, and the lateral force of the roadbed is transmitted to both ends of the arc-shaped plate through the arc-shaped plate. The two ends of two adjacent arc-shaped plates at the same height are connected to the end of the same support member. The resultant force of the two forces at the ends of the two arc-shaped plates is parallel to the axis of the support member, thereby preventing the support member from tilting and causing the arc-shaped plate connected to it to stop contacting the roadbed.

[0028] 4. Guiding grooves are spaced apart on the peripheral walls of both the first and second fixed cylinders. When the roadbed is heated and its volume increases, the arc-shaped plate experiences prolonged and greater stress. This causes deformation of the first and second fixed cylinders and the corrugated plate, shortening their length and reducing the pressure on the arc-shaped plate, thus preventing road damage. The first and second fixed plates also limit and fix the first and second fixed cylinders, preventing them from bending. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This invention provides a structural schematic diagram of a sponge city drainage and water storage road.

[0031] Figure 2 A schematic diagram of the filtration and purification device provided by the present invention installed in an installation pit;

[0032] Figure 3 A schematic diagram of the internal structure of the housing provided by the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the water inlet pipe provided by the present invention;

[0034] Figure 5 This is a schematic diagram of the internal structure of the water inlet pipe provided by the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the water outlet pipe provided by the present invention;

[0036] Figure 7 A schematic diagram of the internal structure of the water outlet pipe provided by the present invention;

[0037] Figure 8 A schematic diagram of the structure of the water storage tank provided by the present invention located within a fixed component;

[0038] Figure 9 This is a schematic diagram of the structure of the limiting member provided by the present invention;

[0039] Figure 10 This is a schematic diagram of the internal structure of the support member provided by the present invention.

[0040] Icons: 100-Roadbed; 101-Concrete layer; 103-Asphalt layer; 105-Vegetation planting strip; 107-Drainage well; 109-Water storage tank; 110-Filtration and purification device; 111-Shell; 112-Waterproof cover; 113-First annular groove; 114-First annular boss; 115-Second annular boss; 116-Second annular groove; 117-Channel; 118-Mounting cavity; 119-First filter layer; 120-Second filter layer; 121-Inlet pipe; 122-First solid... 123-Inlet pipe; 124-First connector; 125-Outlet pipe; 126-Second fixed pipe; 127-Outlet pipe; 128-Second connector; 129-Limiting strip; 130-Water supply component; 150-Limiting element; 151-Vertical plate; 153-Arc plate; 155-Supporting element; 157-Mounting base; 159-First fixed cylinder; 161-Second fixed cylinder; 163-First fixed plate; 165-Second fixed plate; 167-Induction groove; 169-Wave plate. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Please refer to Figure 1As shown, a sponge city drainage and storage road includes a roadbed 100, a concrete layer 101 laid on top of the roadbed 100, and an asphalt layer 103 laid on top of part of the concrete layer 101. The asphalt layer 103 is the road surface. Waterproofing layers, subbase layers, etc., can also be added according to existing technology. A vegetation planting strip 105 is set inside the concrete layer 101, i.e., pre-set pits are made in the concrete layer 101, and the pits are filled with soil for planting plants. A rainwater storage and drainage device is installed inside the road, including a drainage well 107 and a storage tank 109. The drainage well 107 is located on one side of the road and is an existing drainage ditch. A filter screen is installed at the upper opening of the drainage well 107 to filter out larger debris such as leaves and branches, preventing blockage of the drainage well 107. The water storage tank 109 is located below the vegetation planting strip 105. The water storage tank 109 is a box made of metal or plastic to prevent water in the water storage tank 109 from seeping into the ground and eroding the roadbed 100 over a long period of time, causing the soil in the roadbed 100 to be lost with the water flow, resulting in cavities inside the roadbed 100 and damage to the roadbed 100. An installation pit is opened between the water storage tank 109 and the drainage well 107. A filter purification device 110 is detachably installed in the installation pit. The water storage tank 109 and the drainage well 107 are connected through the filter purification device 110. One end of the filter purification device 110 extends into the drainage well 107, and the height of this end is higher than the height of the other end. When rainwater falls into the drainage well 107 through its upper port, some rainwater drips onto the filtration and purification device 110 located at the end of the drainage well 107 and enters the filtration and purification device 110. The filtration and purification device 110 filters out the mud and sand in the rainwater and sterilizes it. The rainwater eventually enters the storage tank 109 for storage. The filtered rainwater does not contain mud and sand, so no sediment will form at the bottom of the storage tank 109, and the volume of the storage tank 109 will not decrease, so there is no need for staff to clean the inside of the storage tank 109. In addition, the storage tank 109 is equipped with a water supply component 130 for supplying water to the vegetation planting strip 105. That is, the water supply component 130 can draw rainwater from the storage tank 109 for irrigating the vegetation planting strip 105. After the rainwater is sterilized by the filtration and purification device 110, the microorganisms and bacteria in the rainwater are killed, so that the rainwater can be stored for a long time, is not easy to deteriorate, and will not pollute the air; and can meet the needs of long-term irrigation of the vegetation planting belt 105.

[0043] The water supply component 130 utilizes the capillary principle, whereby a rope is installed at the top of the water storage tank 109, extending from the bottom to the top and from the top within the soil of the planting strip 105. This allows rainwater to rise and moisten the soil, meeting the plant's growth needs. Alternatively, the water supply component 130 can be a pump connected to a pipeline. The pump draws rainwater from the water storage tank 109 and irrigates the plants via drip irrigation. This method offers high rainwater utilization and conserves water resources. Both of these water supply methods are existing technologies, and their specific structures will not be described in detail here. In this embodiment, a pump is used as the power source for irrigation, and the pump can be connected to the electrical circuitry of the streetlights.

[0044] Preferably, a water pumping pipe is also installed at the bottom of the water storage tank 109, with one end extending above the road surface. A sealing cap for opening and closing the water pumping pipe is threaded onto this end. Sanitation workers can connect the water storage equipment of vehicles requiring water, such as sprinkler trucks and spray trucks, to the water pumping pipe to draw water from the water storage tank 109 into the storage equipment, meeting their daily work needs. Sanitation workers do not need to go to specific locations to fetch water, saving working time and energy and improving work efficiency.

[0045] Specifically, the depth of the drainage well 107 is less than the thickness of the concrete layer 101, meaning the drainage well 107 is located within the concrete layer 101. The sidewalls and bottom of the drainage well 107 are both concrete, thus enhancing its strength and preventing collapse due to long-term rainwater erosion. A support frame is fixedly connected to the upper opening of the drainage well 107. A filter screen is located above the support frame and welded to it. The support frame supports the filter screen, preventing deformation and facilitating cleaning by sanitation workers. The drainage well 107 connects to the city's drainage pipes, and rainwater flowing into it ultimately flows into the river through the city's drainage pipes.

[0046] Please refer to Figures 2 to 7As shown, the filtration and purification device 110 includes a housing 111. A waterproof cover 112 is bolted to the top of the housing 111. A first annular groove 113 is provided below the waterproof cover 112, and a first annular boss 114 is formed on the outer periphery of the first annular groove 113. A second annular boss 115 is provided on the outer periphery of the pit opening of the installation pit, and a second annular groove 116 is provided on the ground, located outside the second annular boss 115. The first annular groove 113 is adapted to the second annular boss 115, and the second annular groove 116 is adapted to the first annular boss 114. Furthermore, a sealing layer, which is a rubber ring, is provided at the bottom of both the first annular groove 113 and the second annular groove 116. When the filter and purification device 110 is installed in the installation pit, the weight of the filter and purification device 110 causes the first annular groove 113 and the second annular boss 115 to work together to compress the sealing layer in the first annular groove 113, and the second annular groove 116 and the first annular boss 114 to compress the sealing layer in the second annular groove 116, thereby sealing the waterproof cover 112 with the installation pit and preventing rainwater from the ground from entering the installation pit along the side wall of the installation pit.

[0047] The housing 111 has a channel 117 and multiple mounting cavities 118. After removing the waterproof cover 112 from the housing 111, the mounting cavities 118 can be opened. One end of the channel 117 penetrates the side of the housing 111 near the drainage well 107 to form a water inlet, and the other end of the channel 117 penetrates the side wall of the housing 111 near the water storage tank 109 to form a water outlet. The multiple mounting cavities 118 are connected through the channel 117. In this embodiment, the channel 117 and the multiple mounting cavities 118 together form a serpentine line. The housing 111 is equipped with a multi-stage filtration assembly and a sterilization assembly. The multi-stage filtration assembly includes multiple first filter layers 119 and second filter layers 120. The first filter layer 119 is a fine sand layer, preferably light-colored sand with rounded outlines; the second filter layer 120 is activated carbon. The first filter layer 119 and the second filter layer 120 are respectively installed in two adjacent mounting cavities 118. The sterilization component is installed in the mounting cavity 118 near the water storage tank 109. Specifically, the sterilization component is an ultraviolet lamp, which is fixedly installed on the top of the mounting cavity 118 by screws, and there is a gap between the sterilization component and the bottom surface of the mounting cavity 118. The sterilization component is connected to the circuit equipment of the street light.

[0048] A water inlet pipe 121 is detachably installed on one side of the housing 111. The water inlet pipe 121 includes a first fixed pipe 122, an inner water inlet pipe 123, and a first connector 124. The first fixed pipe 122 is embedded in the concrete layer 101 between the drainage well 107 and the installation pit. The inner water inlet pipe 123 is located inside the first fixed pipe 122 and is slidably connected to the first fixed pipe 122 via an existing slide rail. Fixing rods are provided on both the outer side wall and the inner side wall of the inner water inlet pipe 123 inside the first fixed pipe 122, and the two fixing rods are connected by a spring. The end of the inner water inlet pipe 123 away from the installation pit extends into the drainage well 107, and a limit strip 129 is provided on the outer side wall of the portion of the inner water inlet pipe 123 inside the drainage well 107. The spring causes the inner inlet pipe 123 to tend to move towards the mounting pit. When the end of the inner inlet pipe 123 away from the drainage well 107 is located outside the first fixed pipe 122 and inside the mounting pit, the limiting strip 129 abuts against the end face of the first fixed pipe 122, preventing the inner inlet pipe 123 from moving further. The opening of the inner inlet pipe 123 at the end located in the drainage well 107 is an oblique opening facing the filter screen. A support plate is welded to the oblique opening, and several through holes for rainwater to pass through are opened on the support plate. A filter cloth is adhered to the support plate, covering the entire oblique opening, and the edge of the filter cloth is adhered to the side wall of the inner inlet pipe 123. The opening of the end of the inlet pipe 121 near the housing 111 is an oblique opening facing upwards.

[0049] One end of the first connector 124 is fixedly connected to the side wall of the housing 111 and communicates with the channel 117 through the water inlet hole. The other end of the first connector 124 has an opening that faces downwards at an angle.

[0050] In addition, a water outlet pipe 125 is provided on the opposite side of the housing 111 where the first connector 124 is installed. The water outlet pipe 125 includes a second fixed pipe 126, an inner water outlet pipe 127, and a second connector 128. The inner water outlet pipe 127 is embedded in the concrete layer 101 between the installation pit and the water storage tank 109. The second connector 128 is installed on the side wall of the housing 111 and communicates with the channel 117 through a water outlet hole. The structure of the inner water outlet pipe 127 is the same as that of the inner water inlet pipe 123; the structure of the second connector 128 is the same as that of the first connector 124; the connection relationship between the second fixed pipe 126 and the inner water outlet pipe 127 is the same as that between the first fixed pipe 122 and the inner water inlet pipe 123; the connection relationship between the inner water outlet pipe 127 and the second connector 128 is the same as that between the inner water inlet pipe 123 and the first connector 124, which will not be described in detail here. The end of the water outlet inner pipe 127 away from the shell 111 extends into the water storage tank 109, and the side wall of the water outlet inner pipe 127 is slidably and sealingly connected to the side wall of the water storage tank 109. Existing sealing sliding connection methods can be used here, such as adding a seal or gap sealing.

[0051] When the housing 111 is not installed in the installation pit, the ends of the inlet inner pipe 123 and the outlet inner pipe 127 closest to the installation pit are both located in the installation pit. When the housing 111 is installed in the installation pit, the end of the first connector 124 away from the housing 111 abuts against the end of the inlet inner pipe 123 located in the installation pit, and pushes the inlet inner pipe 123 toward the drainage well 107. The first connector 124 and the inlet inner pipe 123 are tightly fitted under the spring tension. The end of the second connector 128 away from the housing 111 abuts against the end of the outlet inner pipe 127 located in the installation pit, and pushes the outlet inner pipe 127 toward the water storage tank 109. The second connector 128 and the outlet inner pipe 127 are tightly fitted under the spring tension. Preferably, sealing rings are fixedly connected at the port edge of the first connector 124 near the inlet inner pipe 123 and at the port edge of the second connector 128 near the outlet inner pipe 127. The sealing rings seal the connection and prevent rainwater from leaking into the installation pit at the connection.

[0052] Preferably, a handle is provided on the top of the waterproof cover 112, which allows the operator to place the filter purification device 110 into or remove it from the installation pit by holding the handle.

[0053] After passing through the filter screen, rainwater falls to the end of the inlet pipe 123 located inside the drainage well 107. The filter cloth at this end filters the rainwater, removing most of the silt and larger particles, such as sand. The silt and debris are retained on the filter cloth and washed away by subsequent rainwater falling onto the filter cloth, falling into the drainage well 107. The filtered rainwater passes through the filter cloth and support plate, then enters the channel 117 through the inlet pipe 123 and the first connector 124. It then passes through multiple mounting chambers 118 in sequence, where it is filtered by the first filter layer 119 and the second filter layer 120. This filters out the silt in the rainwater and retains it inside the multiple mounting chambers 118. When the rainwater passes through the sterilization component after multiple filtrations, ultraviolet light kills bacteria and microorganisms in the rainwater. The filtered and sterilized rainwater finally enters the water storage tank 109 through the second connector 128 and the outlet pipe 127. Because rainwater contains virtually no sediment, the reservoir 109 will not accumulate sediment even after long-term use. Even if a small amount of sediment does settle, it will be removed from the bottom of the reservoir when sanitation workers use pumps, preventing sediment buildup and the resulting increase in the reservoir's height and decreasing capacity. Furthermore, rainwater exposed to ultraviolet radiation can be stored in the reservoir for extended periods, ensuring proper drip irrigation for vegetation even during dry seasons.

[0054] Please refer to Figure 1 , Figures 8 to 10As shown, because the water storage tank 109 is buried at a considerable depth and located to the side of the highway, the weight of vehicles moving on the highway can easily cause the roadbed 100 beneath the highway to extend laterally, leading to cracking and collapse at its longitudinal section, resulting in road surface depression and damage. The water storage tank 109 is also deformed by the roadbed 100. Therefore, in this embodiment, the water storage tank 109 is configured as multiple spaced water tanks, with the bottoms of adjacent tanks connected by pipes. A fixing component is installed around the outer periphery of the water tank to prevent the roadbed 100 from extending laterally, abutting against the roadbed 100 section on one side of the water tank. The other end of the fixing component passes through the gap between adjacent water tanks and abuts against the roadbed section on the other side of the water tank. The fixing component prevents the roadbed 100 from collapsing, thereby protecting the water tank.

[0055] The fixing assembly includes multiple vertically arranged limiting members 150 and a vertical plate 151. The vertical plate 151 is located on the side of the water tank away from the filter purification device 110 and is made of stainless steel. The ends of the multiple limiting members 150 away from the filter purification device 110 are connected to the vertical plate 151 by bolts.

[0056] Specifically, the limiting component 150 includes an arc-shaped plate 153 and a support component 155. The convex surface of the arc-shaped plate 153 abuts against the roadbed section. Mounting seats 157 are provided at both ends of the arc-shaped plate 153. Multiple arc-shaped plates 153 at the same height, near the road surface, collectively form a wave-shaped limiting plate. Two adjacent mounting seats 157 at the same height are bolted to one end of the same support component 155. The end of the support component 155 away from the mounting seats 157 is bolted to the side of the vertical plate 151.

[0057] The support member 155 includes a first fixing cylinder 159, and a plurality of second fixing cylinders 161 are arranged around the outer periphery of the first fixing cylinder 159. The first fixing cylinder 159 and the second fixing cylinder 161 have the same length. A first fixing plate 163 is welded to both ends of the first fixing cylinder 159, and the two ends of the second fixing cylinders 161 are respectively welded to two first fixing plates 163. Furthermore, a plurality of second fixing plates 165 are equidistantly arranged between the two first fixing plates 163. Both the first fixing cylinders 159 and the second fixing cylinders 161 penetrate the second fixing plates 165, and the peripheral walls of both the first fixing cylinders 159 and the second fixing cylinders 161 are welded to the second fixing plates 165.

[0058] When the roadbed 100 is subjected to lateral expansion under stress, the force acts on the arc-shaped plate 153 and is transmitted to the vertical plate 151 through the support members 155 connected to both ends of the arc-shaped plate 153. Finally, the roadbed 100 on the other side bears the force. The arc-shaped plate 153 fits against the side of the roadbed 100 to prevent the roadbed 100 from collapsing due to stress.

[0059] The support member 155 transmits force through the first fixed cylinder 159 and multiple second fixed cylinders 161, exhibiting excellent flexural resistance, making the first and second fixed cylinders 159 and 161 less prone to bending. Furthermore, the first fixed plate 163 ensures uniform force distribution on the first fixed cylinder 159 and multiple second fixed cylinders 161, while the second fixed plate 165 fixes and limits the peripheral walls of the first fixed cylinder 159 and multiple second fixed cylinders 161, effectively dividing them into multiple shorter circular tubes, further reducing their bending resistance. Two adjacent mounting seats 157 at the same height are connected to the same support member 155, and the two concurrent forces combine into a resultant force. This resultant force is parallel to the axis of the support member 155, i.e., an axial force, further preventing the support member 155 from bending and being damaged.

[0060] Furthermore, since the roadbed 100 expands when heated, especially in summer when thermal expansion is significant, to prevent the road surface from becoming uneven due to the expansion of the roadbed 100, the present invention provides guide grooves 167 at intervals on the peripheral walls of the first fixing cylinder 159 and the second fixing cylinder 161 between the first fixing plate 163 near the mounting base 157 and the second fixing plate 165 adjacent to the first fixing plate 163. The guide grooves 167 are opened along the length direction of the first fixing cylinder 159 or the second fixing cylinder 161, and the angle between the guide grooves 167 is 20° to 45°.

[0061] In addition, a multi-layer corrugated plate 169 is placed between the first fixing plate 163 near the mounting base 157 and the second fixing plate 165 adjacent to the first fixing plate 163. One end of the corrugated plate 169 is welded to the side wall of the first fixing plate 163, and the other end of the corrugated plate 169 is welded to the side wall of the second fixing plate 165. The fold line of the corrugated plate 169 is perpendicular to the axis of the first fixing cylinder 159.

[0062] When the thermal expansion force of the roadbed 100 exceeds the supporting force of the support member 155, the peripheral walls of the first fixing cylinder 159 and the second fixing cylinder 161 where the guide groove 167 is provided will bend outwards, thereby shortening the length of the first fixing cylinder 159 and the second fixing cylinder 161. At the same time, the corrugated plate 169 is compressed, thus preventing the roadbed 100 from expanding upwards when heated, which would cause damage to the road surface. After the corrugated plate 169 is fully compressed, it can replace the nearby first fixing cylinder 159 and multiple second fixing cylinders 161 to continue providing support.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sponge city drainage and water storage road, comprising a roadbed, a concrete layer laid on top of the roadbed, and an asphalt layer laid on top of a portion of the concrete layer, wherein the road interior is equipped with a vegetation planting strip and a rainwater storage and drainage device, characterized in that, The rainwater storage and drainage device includes a drainage well and a water storage tank. The drainage well is located on one side of the asphalt layer, and the water storage tank is located below the vegetation planting strip. An installation pit is provided between the water storage tank and the drainage well. A detachable filtration and purification device for filtering and sterilizing rainwater is installed in the installation pit. The water storage tank and the drainage well are connected through the filtration and purification device. The height of the end of the filtration and purification device connected to the drainage well is higher than the height of the end of the filtration and purification device connected to the water storage tank. A water supply component for supplying water to the vegetation planting strip is provided on the water storage tank. The water storage tank includes multiple water tanks spaced apart, and adjacent water tanks are connected by pipes; a fixing component is provided on the outer periphery of the water tank to prevent the roadbed from extending laterally, one end of the fixing component abuts against the roadbed section on one side of the water tank, and the other end of the fixing component abuts against the roadbed section on the other side of the water tank; The fixing assembly includes a plurality of vertically arranged limiting members and a vertical plate, the ends of the plurality of limiting members near the filter purification device together forming a limiting plate; the vertical plate is located on the side of the water tank away from the filter purification device, and the ends of the plurality of limiting members away from the filter purification device are connected to the vertical plate. The limiting component includes an arc-shaped plate and a support component. The convex surface of the arc-shaped plate abuts against the roadbed section. Mounting seats are provided at both ends of the arc-shaped plate. Two adjacent mounting seats at the same height are connected to one end of the same support component. The end of the support component away from the mounting seat is connected to the side of the vertical plate. The support includes a first fixed cylinder, and a plurality of second fixed cylinders are arranged around the outer periphery of the first fixed cylinder. The first fixed cylinder and the second fixed cylinders have the same length. A first fixed plate is provided at both ends of the first fixed cylinder, and the two ends of the second fixed cylinder are respectively fixedly connected to two first fixed plates. A plurality of second fixed plates are also provided at equal intervals between the two first fixed plates. The first fixed cylinder and the second fixed cylinder both pass through the second fixed plate and are fixedly connected to the second fixed plate. Guiding grooves are provided at intervals on the peripheral walls of the first fixing cylinder and the second fixing cylinder between the first fixing plate near the mounting base and the second fixing plate adjacent to the first fixing plate. The guiding grooves are opened along the length direction of the first fixing cylinder or the second fixing cylinder. A multi-layer corrugated plate is provided between the first fixing plate near the mounting base and the second fixing plate adjacent to the first fixing plate. One end of the corrugated plate is connected to the side wall of the first fixing plate, and the other end of the corrugated plate is connected to the side wall of the second fixing plate. The fold line of the corrugated plate is perpendicular to the axis of the first fixing cylinder.

2. The sponge city drainage and water storage road according to claim 1, characterized in that, The filtration and purification device includes a housing, on which an inlet pipe and an outlet pipe are detachably mounted. One end of the inlet pipe extends into the drainage well, and one end of the outlet pipe is connected to the water storage tank. The housing has a channel, and a multi-stage filtration assembly and a sterilization assembly are installed inside the housing. The inlet pipe and the outlet pipe are connected through the channel.

3. A sponge city drainage and water storage road according to claim 2, characterized in that, A support plate is provided on one end of the water inlet pipe located inside the drainage well, and a filter cloth is provided on the support plate.

4. A sponge city drainage and water storage road according to claim 2, characterized in that, The housing is provided with multiple mounting cavities spaced apart, and the multiple mounting cavities are connected to each other through the channel; The multi-stage filtration assembly includes multiple first filter layers and second filter layers, with the first filter layers and second filter layers respectively disposed in two adjacent mounting cavities, and the sterilization assembly installed in the mounting cavity near the water storage tank.

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