Rainwater collection method based on urban design

Abstract

The invention relates to the field of urban rainwater management, and discloses a rainwater collection method based on urban design, and a rainwater collection system used by the method comprises a collection cylinder buried in a soil body and used for collecting rainwater; the primary filter plate is used for filtering large impurities; the secondary filter cover is used for further filtering the rainwater; the annular collecting tank is used for collecting impurities filtered by the secondary filtering cover; the first cleaning assembly is used for cleaning the annular collecting tank; the height of the floating plate is influenced by the height of the liquid level in the collecting cylinder, and an overflow port is formed in one side of the collecting cylinder and used for controlling the highest height of the floating plate; and the linkage assembly is used for driving the cleaning assembly to perform cleaning and impurity removal actions when the height of the floating plate changes. According to the urban rainwater collection method, the rainwater collection efficiency and water quality management can be remarkably improved, and meanwhile the maintenance requirement is greatly reduced through an automatic cleaning mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of urban rainwater management, and in particular to a rainwater collection method based on urban design. Background Art

[0002] In modern urban environments, with the acceleration of urbanization, traditional stormwater management systems face many challenges. These systems usually rely on extensive drainage networks and treatment facilities, designed to quickly divert stormwater away from urban areas to prevent flooding. However, this approach not only puts pressure on the environment, but also fails to effectively utilize these rainwater resources. Common problems include increased surface runoff, water pollution, and overload of drainage systems.

[0003] Traditional systems usually lack effective rainwater collection and filtration mechanisms, resulting in the collected rainwater containing a large amount of impurities and difficult to use directly. In addition, these systems often require frequent manual cleaning of filtration equipment, increasing maintenance costs and labor intensity. In extreme weather events, such as heavy rain or rainstorms, existing drainage systems are often unable to handle the sudden increase in water volume, which can easily cause flooding or overflow, affecting the normal operation of the city and the safety of residents. Summary of the invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a rainwater collection method based on urban design, which effectively collects and filters urban rainwater, while reducing system maintenance requirements, improving rainwater utilization, and enhancing the ability of urban drainage systems to respond to extreme weather events.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A rainwater collection system based on urban design, comprising: A collecting cylinder is buried in the soil, with its top opening flush with the ground, for collecting rainwater, and a drainage port is provided at the bottom of the collecting cylinder for discharging the collected rainwater; A primary filter plate is arranged at the opening of the collecting cylinder and is used to filter large impurities in rainwater flowing into the cylinder from the ground. A support rod is fixed to the bottom of the primary filter plate. A secondary filter cover is arranged at the bottom of the primary filter plate, the secondary filter cover is fixed on the support rod, the secondary filter cover is cone-shaped with the tip facing upward, and a plurality of first filter holes are arranged on the secondary filter cover for further filtering rainwater; An annular collecting groove is arranged at the outer edge of the secondary filter cover, and the annular collecting groove is used to collect impurities filtered by the secondary filter cover. The annular collecting groove is divided into two sections, and the two sections are provided with a debris discharge port at one end away from each other. A collecting channel is provided in the soil body corresponding to each debris discharge port, and a debris discharge channel is provided on the side wall of the collecting channel to communicate with the debris discharge port, so as to collect impurities discharged from the annular collecting groove; A first cleaning assembly, the first cleaning assembly comprising two cleaning plates, the two cleaning plates being respectively arranged in two sections of the annular collecting tank; A floating plate, wherein a plurality of water holes are arranged on the floating plate, the floating plate is slidably connected to the support rod, the height of the floating plate is affected by the height of the liquid level in the collecting cylinder, and an overflow port is arranged on one side of the collecting cylinder for controlling the maximum height of the floating plate; A linkage assembly, which is arranged between the first cleaning assembly and the floating plate, and is used to drive the two cleaning plates to slide along the inner wall of the annular collecting groove to perform cleaning and impurity removal actions when the height of the floating plate changes; Among them, when the floating plate is in the highest position, the two cleaning plates are in the initial position in the annular collecting trough. When the water level inside the collecting cylinder drops due to use, the cleaning plates are driven by the linkage assembly to clean and remove impurities. When the water level inside the collecting cylinder rises, the cleaning plates are driven by the linkage assembly to return to the initial position.

[0006] Preferably, a water leakage groove is arranged in the middle of the annular collecting groove, the water leakage groove is arranged coaxially with the annular collecting groove, and the cleaning plate is slidably connected in the water leakage groove.

[0007] Preferably, the side wall of the annular collecting groove at the impurity discharge port is configured to be an arc surface.

[0008] Preferably, the first cleaning assembly also includes a connecting rod, which is arranged at the bottom of the annular collecting groove, and is rotatably connected to the outer wall of the support rod. The connecting rod is respectively fixedly connected to two cleaning plates, and a connecting ring is fixedly connected to the middle part of the connecting rod, and the connecting ring is coaxially arranged with the support rod.

[0009] Preferably, the linkage assembly includes a rack, one end of the rack is fixedly connected to the upper part of the floating plate, the rack is meshingly connected to the first gear, the first gear is rotatably connected to one side of the support rod, the first gear is coaxially fixedly connected to the first bevel gear, the first bevel gear is rotatably connected to the second bevel gear, the middle part of the second bevel gear is fixedly connected to a connecting rod, the connecting rod is fixedly connected to the second gear, the second gear is meshingly connected to a gear ring, and the gear ring is fixedly connected to the bottom of the connecting ring.

[0010] Preferably, a guide seat for limiting the sliding direction of the rack is fixedly connected to one side of the support rod, and a fixing seat for installing the connecting rod is fixedly connected to one side of the support rod.

[0011] Preferably, a plurality of limiting support rods are fixedly connected to the bottom of the floating plate to limit its lowest position.

[0012] Preferably, the system further comprises a second cleaning component, which is disposed between the primary filter plate and the secondary filter cover, and is used for cleaning the upper surface of the secondary filter cover by being driven by rainwater flowing down from the primary filter plate.

[0013] Preferably, the second cleaning component includes a filter screen, a pressure pipe and an impeller, the filter screen is arranged at the water leakage port of the first-level filter plate for filtering, the pressure pipe is fixedly connected to the bottom of the filter screen, the impeller is rotatably connected to the outer wall of the support rod, the bottom end of the pressure pipe is arranged toward the impeller, and the diameter of the pressure pipe decreases from top to bottom, the bottom of the impeller is fixedly connected to a swivel seat through a connecting rod, the swivel seat is rotatably connected to the outer wall of the support rod, a plurality of scrapers are fixedly connected to the outside of the swivel seat, and the plurality of scrapers are slidably connected to the upper surface of the secondary filter cover.

[0014] The present invention also provides a rainwater collection method based on urban design, comprising the following steps: The rainwater is collected through the opening at the top of the collection cylinder, and its design, which is flush with the ground, is used to maximize the collection of surface rainwater; Large impurities in rainwater entering the collection cylinder are initially filtered through the primary filter plate to protect the internal structure of the system and reduce the burden of subsequent filtration; The rainwater filtered by the primary filter plate is subjected to a more detailed secondary filtration by using the multiple first filter holes of the secondary filter cover to remove smaller debris and particles; Collect and separate the impurities filtered through the secondary filter cover into the annular collection tank, and discharge the accumulated impurities into the collection channel through the impurity discharge port, and further transfer the impurities to the external treatment facility through the impurity discharge channel; As the water level in the collection cylinder changes, the floating plate moves up and down, and the cleaning plate in the first cleaning assembly is controlled by the linkage assembly to slide along the inner wall of the annular collection groove according to a preset trajectory to remove accumulated debris on the inner wall of the annular collection groove, thereby ensuring the filtration efficiency and maintaining the clean state of the annular collection groove; When the water level inside the collection cylinder reaches the maximum height set by the overflow port, the floating plate is at its highest position, triggering the cleaning plate to return to its initial position, ready for the next round of cleaning action; When the water inside the collection cylinder is used, that is, the water level drops, the linkage assembly responds to the change in the position of the floating plate and activates the cleaning plate to perform cleaning and impurity removal actions along the annular collection groove to maintain the continuous operation efficiency and cleanliness of the system.

[0015] The present invention provides a rainwater collection method based on urban design, which has the following beneficial effects: 1. The present invention maximizes the collection of surface rainwater by designing the collection cylinder flush with the ground, effectively reducing urban surface runoff and related water resource waste. This design takes advantage of natural rainfall and terrain without the need for additional power input or complex waterway redirection, thereby improving the rainwater collection efficiency and the overall energy efficiency of the system.

[0016] 2. The present invention effectively removes large to tiny impurities from the collected rainwater by setting up a two-stage filtration system, protects the internal structure of the system, and provides cleaner water resources. This layered filtration mechanism ensures the continuity and reliability of water quality, providing higher standards of water quality for subsequent water resource utilization.

[0017] 3. The design of the floating plate and linkage assembly of the present invention automates the cleaning process and reduces the need for manual intervention. As the water level changes, the floating plate automatically drives the cleaning plate to slide along the collection tank to effectively remove accumulated impurities. This automatic cleaning mechanism not only maintains the filtration efficiency, but also reduces the maintenance cost and operation complexity of the system.

[0018] 4. The urban rainwater collection system of the present invention significantly improves the collection efficiency and water quality management of rainwater through its innovative design and automation characteristics, while greatly reducing maintenance requirements through the automatic cleaning mechanism. The system not only effectively reduces the burden on the urban drainage system and prevents flood disasters, but also optimizes the reuse of water resources and supports environmental sustainability. This system provides a cost-effective solution for cities by reducing surface runoff and improving rainwater utilization, while promoting the realization of green ecological city construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the annular collecting tank of the present invention; Figure 3 It is a schematic diagram of the linkage assembly structure of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the cleaning component of the present invention during cleaning; Figure 6 It is a schematic diagram of the collecting channel structure of the present invention; Figure 7 It is a schematic diagram of the structure of the second cleaning component of the present invention.

[0020] Among them, 10, collecting cylinder; 11, primary filter plate; 12, supporting rod; 13, drain outlet; 14, overflow outlet; 20, secondary filter cover; 201, first filter hole; 21, annular collecting trough; 211, water leakage trough; 212, debris outlet; 30, first cleaning component; 31, cleaning plate; 32, connecting rod; 33, connecting ring; 40, floating plate; 41, water outlet; 42, limiting support rod; 50, linkage component; 51, rack; 52, first gear; 53, first bevel gear; 54, second bevel gear; 55, connecting rod; 56, second gear; 57, gear ring; 60, second cleaning component; 61, filter screen; 62, pressurizing pipe; 63, impeller; 64, connecting rod; 65, swivel seat; 66, scraper; 100, soil; 110, collecting channel; 120, debris outlet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please see attached Figure 1 -Attached Figure 7 An embodiment of the present invention provides a rainwater collection system based on urban design, including a collection cylinder 10, a primary filter plate 11, a secondary filter cover 20, an annular collection trough 21, a first cleaning component 30, a floating plate 40 and a linkage component 50.

[0023] The collecting cylinder 10 is the core component of the present invention, which is buried in the soil 100, and the top opening is flush with the ground. This design allows rainwater to flow directly from the ground into the cylinder without the need for additional water diversion facilities. The drain port 13 at the bottom of the cylinder allows the collected rainwater to be guided to the city's drainage system or water storage facilities as needed, thereby achieving effective use of rainwater. This configuration not only reduces surface runoff, but also helps prevent and control urban waterlogging.

[0024] The primary filter plate 11 is arranged at the opening of the collection cylinder 10, and its main function is to intercept larger impurities such as fallen leaves, paper, etc., and prevent these large impurities from entering the collection system. The support rod 12 not only fixes the primary filter plate 11, but also supports the secondary filter cover 20. The secondary filter cover 20 is designed in a conical shape with the tip facing upward. The multiple first filter holes 201 thereon can further filter out finer impurities, such as sand particles, small stones, etc., to ensure the cleanliness of the water quality, which is crucial for the subsequent reuse of water resources.

[0025] The annular collection groove 21 is designed at the outer edge of the secondary filter cover 20 to effectively collect the impurities remaining after the secondary filtration. The collection groove is divided into two sections, and the impurity discharge port 212 at the end of each section can directly discharge the impurities into the collection channel 110, and then be discharged from the impurity discharge channel 120, which greatly simplifies the impurity processing process. In addition, the two cleaning plates 31 included in the first cleaning component 30 can move back and forth in the annular collection groove to keep the collection groove clean and effectively prevent clogging caused by impurity accumulation.

[0026] The floating plate 40 is designed with multiple water inlets 41, and its position slides up and down as the liquid level in the cylinder changes. This movement of the floating plate is transmitted to the first cleaning component 30 through the linkage component 50, realizing an automated cleaning process. When the water level rises, the cleaning plate 31 automatically returns to the initial position and prepares for the next operation. This automated cleaning process greatly reduces the need for manual maintenance and improves the operating efficiency and reliability of the system. Among them, the highest water level is controlled by the overflow port 14 set on the cylinder body. The overflow port 14 is connected to the urban drainage system (not shown in the figure), which can avoid the water level from being too high and prevent the operation of the linkage component 50 from being affected.

[0027] The rainwater collection system of the present invention not only effectively manages urban rainwater and reduces environmental pollution, but also improves the utilization rate of rainwater and reduces the burden on the urban drainage system. The self-cleaning function of the system reduces maintenance costs, and the environmentally friendly design of the system is of great significance to improving urban drainage and reducing surface runoff. This innovative rainwater collection system provides an effective tool for urban water resource management and is an indispensable part of the city's sustainable development strategy.

[0028] Please see attached Figure 2 In a preferred embodiment of the present invention, the design of the annular collection trough 21 is further optimized to improve the efficiency and maintenance convenience of the rainwater collection system. The central feature is that a drainage trough 211 is arranged in the middle of the annular collection trough 21. The drainage trough 211 is arranged coaxially with the annular collection trough 21. This configuration allows the drainage trough 211 to be structurally integrated with the annular collection trough 21, thereby forming a continuous and structurally consistent filtering and cleaning unit.

[0029] The main function of the drain trough 211 is to allow the tiny particles and water that are not intercepted after filtering through the secondary filter cover 20 to be discharged through it, reducing the amount of water accumulated inside the annular collection trough 21, which helps to accelerate the removal of impurities and reduce potential blockage risks. The coaxial design of the drain trough 211 ensures the symmetry and balance of the entire system, which is very important in a dynamic water flow environment and helps to maintain the stability and efficient operation of the system.

[0030] In this design, the cleaning plate 31 is slidably connected to the inside of the water leakage groove 211, so that the cleaning plate can move along a fixed track in the annular collection groove 21. Since the cleaning plate 31 is in direct contact with the water leakage groove 211, this not only simplifies the movement mechanism of the cleaning plate, but also improves the cleaning efficiency. When the cleaning plate 31 slides along the water leakage groove 211, impurities and sediments attached to the inner wall of the water leakage groove can be scraped off more accurately. This arrangement reduces the degradation of filtration performance that may be caused by the accumulation of debris, and ensures the continuous operation efficiency of the rainwater filtration system.

[0031] By adding a drain trough 211 to the annular collection trough 21 and integrating the cleaning plate 31 therewith, the preferred embodiment of the present invention significantly improves the filtering efficiency and cleaning function of the rainwater collection system. This design not only optimizes the hydrodynamics, but also takes into account the maintenance requirements in actual operation, making the system more in line with the high standards and complex requirements of modern urban rainwater management.

[0032] Please refer to the attached Figure 5 In a preferred embodiment of the present invention, the design of the annular collecting groove 21 is further optimized, especially the side wall at the impurity discharge port 212 thereof is configured to be an cambered surface.

[0033] The curved surface design helps to remove impurities smoothly. Due to the curved guidance of the side wall, the centripetal force on solid impurities and sediments at the impurity discharge port helps them to move out of the impurity discharge port more easily, reducing the accumulation in the collection tank.

[0034] Please refer to the attached Figure 2 -Attached Figure 4 In a preferred embodiment of the present invention, the structural design of the first cleaning component 30 and the linkage component 50 is exemplarily given. The structure and functional configuration of the components not only improve the efficiency of the entire rainwater collection system, but also increase its operational reliability and maintenance convenience. The details are as follows: The core part of the first cleaning assembly 30 includes a connecting rod 32, which is arranged at the bottom of the annular collecting groove 21 and is connected to the outer wall of the support rod 12 by rotation. The design of the connecting rod 32 allows it to be fixedly connected to the two cleaning plates 31, and to be coaxially arranged with the support rod 12 through the connecting ring 33 in the middle. This design allows the cleaning plates 31 to slide effectively along the inner wall of the annular collecting groove 21, thereby removing the accumulated impurities and sediments.

[0035] The coaxial arrangement of the connecting ring 33 and the support rod 12 ensures the balance and stability of the entire cleaning mechanism, allowing the cleaning plate 31 to clean the inner wall of the collection tank evenly and effectively. The rotating connection mode of the connecting rod 32 provides sufficient flexibility to cope with different cleaning needs and physical conditions of the annular collection tank, thereby improving the cleaning efficiency.

[0036] The linkage assembly 50 controls the movement of the cleaning plate 31 through a series of precise mechanical transmission assemblies. It includes a rack 51, which is fixedly connected to the upper part of the floating plate 40 and transmits power by meshing with a first gear 52. The first gear 52 is coaxially fixed with a first bevel gear 53, and is further transmitted to a connecting rod 55 through a second bevel gear 54. The connecting rod 55 is fixedly connected to a second gear 56, and finally meshes with a gear ring 57 fixed to the bottom of the connecting ring 33.

[0037] The use of a multi-stage gear transmission system can accurately control the speed and strength of the cleaning action, ensuring the uniformity and thoroughness of the cleaning process. The up and down movement of the floating plate 40 directly affects the rack 51, realizing the automatic adjustment of the cleaning action to the water level change, thereby realizing an automated cleaning operation in the rainwater collection system.

[0038] This structural arrangement enables the first cleaning component 30 and the linkage component 50 to efficiently, stably and automatically respond to water level changes in the rainwater system, automatically perform cleaning operations, reduce manual intervention, and reduce maintenance costs.

[0039] In a preferred embodiment of the present invention, the design of the support rod 12 further increases functionality and stability by fixing a guide seat and a fixed seat (not shown) with specific functions on one side thereof, which components are essential for ensuring accurate and reliable operation of the linkage assembly 50 and the cleaning mechanism.

[0040] The main function of the guide seat is to limit the sliding direction of the rack 51, ensuring that it moves accurately along the predetermined path. By limiting the sliding direction of the rack 51, the guide seat helps maintain the alignment and synchronization of the entire transmission system, preventing mechanical failure due to error accumulation. Stable sliding direction reduces mechanical wear and stress concentration, extending the service life of the equipment and reducing maintenance requirements.

[0041] The fixing seat is used to install the connecting rod 55 and is a key structural support point in the linkage assembly 50. It provides a stable mounting platform for the connecting rod 55 to ensure that it maintains the correct position and posture during movement. The fixing seat helps ensure that the power transmitted by the gear can be effectively transmitted to the connecting rod 55 and converted into the movement of the cleaning plate 31 without reactive power loss.

[0042] The introduction of this design, especially the integration of the guide seat and the fixed seat, provides additional stability and reliability for the operation of the rainwater collection system.

[0043] Please see attached Figure 1 In a preferred embodiment of the present invention, a plurality of limit rods 42 are fixedly connected to the bottom of the floating plate 40 to limit its lowest position. By maintaining the floating plate 40 in a preset height range, the limit rods 42 help stabilize the entire water level control system and avoid the force influence on the linkage assembly 50 when the water level is low.

[0044] Please refer to the attached Figure 7 In a preferred embodiment of the present invention, the added second cleaning assembly 60 provides an efficient automatic cleaning function for the rainwater collection system, especially for the maintenance of the secondary filter cover 20. This design improves the operating efficiency of the system.

[0045] The second cleaning component 60 is located between the primary filter plate 11 and the secondary filter cover 20. Its main function is to use the rainwater flowing down from the primary filter plate 11 to drive the cleaning mechanism to automatically clean the surface of the secondary filter cover 20. The core parts of this component include: The filter screen 61 is arranged at the water leakage port of the primary filter plate 11 and is used for preliminarily filtering the water flowing down from the primary filter plate, intercepting larger impurities, and ensuring that the water flowing to the pressurized pipe 62 is relatively clean.

[0046] The pressurizing pipe 62 is fixedly connected to the bottom of the filter screen 61 and is designed to have a diameter that gradually decreases from top to bottom. This design helps increase the pressure and speed of the water flow and provides sufficient driving force for the downstream impeller 63.

[0047] The impeller 63 is rotatably connected to the outer wall of the support rod 12 and is driven by the high-speed water flow output by the pressurized pipe 62 to rotate the impeller and thus drive the entire cleaning mechanism.

[0048] Connecting rod 64 and rotating seat 65, the bottom of impeller 63 is fixedly connected to rotating seat 65 through connecting rod 64, and the rotating seat rotates on the outer wall of supporting rod 12, and a plurality of scrapers 66 are fixed on the outer side of the rotating seat.

[0049] The scrapers 66 are slidably connected to the upper surface of the secondary filter cover 20, and slide along the surface of the secondary filter cover as the impeller 63 rotates, effectively removing accumulated impurities and sediments.

[0050] When rainwater passes through the primary filter plate 11, the filtered water flows into the pressurized pipe 62, where it is accelerated and pressurized by the contraction of the pipe, driving the impeller 63 to rotate. The rotation of the impeller is transmitted to the rotating seat 65 and the scraper 66 driven by it through the connecting rod 64. The scraper moves on the surface of the secondary filter cover 20 to achieve continuous cleaning of the filter cover. This automated cleaning process ensures that the secondary filter cover 20 always maintains the best working condition and prevents the filtration efficiency from decreasing or the water flow from being blocked due to the accumulation of impurities. The automated operation of this cleaning mechanism reduces the need for manual maintenance and improves the overall reliability and efficiency of the system.

[0051] The present invention also provides a rainwater collection method based on urban design, comprising the following steps: S1. Rainwater collection The opening at the top of the collecting cylinder 10 that is flush with the ground is used to collect rainwater, thereby maximizing the use of surface rainwater and reducing urban surface runoff and related water resource waste.

[0052] The cylinder design allows rainwater to be captured directly from the ground, preventing it from running off while reducing ground water accumulation and potential flooding risks.

[0053] S2. Rainwater filtration The primary filter plate 11 is used to intercept larger impurities, such as leaves and larger garbage, entering the collection cylinder 10, protecting the internal structure of the system from damage and reducing the burden on the secondary filter system.

[0054] The secondary filter cover 20 is provided with a plurality of fine holes, which can filter the rainwater after the primary filtration more finely, remove smaller debris and particles, and ensure further purification of the water quality.

[0055] S3. Impurity treatment The impurities after secondary filtration are collected in the annular collection tank 21. These impurities are discharged through the impurity discharge port 212 and transferred to the impurity discharge channel 120 through the collection channel 110. The impurities can be taken out by setting a lifting device and finally sent to an external processing facility for processing.

[0056] S4. Cleaning mechanism Automatic cleaning operation: The floating plate 40 moves up and down according to the water level in the collecting cylinder 10, and drives the cleaning plate 31 to slide along the inner wall of the annular collecting groove 21 through the linkage assembly 50, so as to automatically remove the accumulated impurities and maintain the filtering efficiency.

[0057] When the water level is at its highest (touching the overflow port 14 ), the floating plate 40 reaches the highest position, triggering the cleaning plate 31 to return to the initial position, preparing for the next round of cleaning action.

[0058] Response to water level changes: When the water in the collection cylinder 10 is used and the water level drops, the linkage assembly 50 responds to the position change of the floating plate 40 and activates the cleaning plate 31 again to clean and remove impurities. This ensures that even after the rainwater is used, the system can automatically restore the cleaning state and prepare for the next rainwater collection.

[0059] The entire method process not only reflects the high efficiency and automation characteristics of the rainwater collection system, but also demonstrates its feasibility and environmental friendliness in modern urban design. Through this method, urban rainwater resources can be effectively managed and utilized, waste can be reduced, and the ability of urban flood control and water resource reuse can be improved.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rainwater collection system based on urban design, characterized in that: include: A collecting cylinder (10) is buried in the soil (100), with its top opening flush with the ground, and is used to collect rainwater. A drainage port (13) is provided at the bottom of the collecting cylinder (10) for discharging the collected rainwater. A primary filter plate (11) is arranged at the opening of the collection cylinder (10) and is used to filter large impurities in rainwater flowing into the cylinder from the ground. A support rod (12) is fixed to the bottom of the primary filter plate (11); A secondary filter cover (20) is arranged at the bottom of the primary filter plate (11), the secondary filter cover (20) is fixed on the support rod (12), the secondary filter cover (20) is conical in shape and the tip is arranged upward, and a plurality of first filter holes (201) are arranged on the secondary filter cover (20) for further filtering rainwater; an annular collecting groove (21) disposed at the outer edge of the secondary filter cover (20), the annular collecting groove (21) being used to collect impurities filtered by the secondary filter cover (20), the annular collecting groove (21) being divided into two sections, and both sections being provided with an impurity discharge port (212) at one end away from each other, a collecting channel (110) being provided in the soil body (100) corresponding to each impurity discharge port, and an impurity discharge channel (120) being provided on the side wall of the collecting channel (110) and being in communication with the impurity discharge port (212) for collecting impurities discharged from the annular collecting groove (21); A first cleaning assembly (30), the first cleaning assembly (30) comprising two cleaning plates (31), the two cleaning plates (31) being respectively arranged in two sections of the annular collecting groove (21); a floating plate (40), wherein a plurality of water passages (41) are arranged on the floating plate (40), the floating plate (40) is slidably connected to the support rod (12), the height of the floating plate (40) is affected by the height of the liquid level in the collecting cylinder (10), and an overflow port (14) is arranged on one side of the collecting cylinder (10) for controlling the maximum height of the floating plate (40); a linkage assembly (50), the linkage assembly (50) being arranged between the first cleaning assembly (30) and the floating plate (40), and being used to drive the two cleaning plates (31) to slide along the inner wall of the annular collecting groove (21) to perform a cleaning and impurity removal action when the height of the floating plate (40) changes through the linkage assembly (50); When the floating plate (40) is at the highest position, the two cleaning plates (31) are at the initial position in the annular collecting groove (21); when the water level inside the collecting cylinder (10) is lowered due to use, the cleaning plates (31) are driven by the linkage assembly (50) to clean and remove impurities; when the water level inside the collecting cylinder (10) rises, the cleaning plates (31) are driven by the linkage assembly (50) to return to the initial position.

2. The urban design-based rainwater collection system according to claim 1, characterized in that: A water leakage groove (211) is arranged in the middle of the annular collecting groove (21), the water leakage groove (211) is arranged coaxially with the annular collecting groove (21), and the cleaning plate (31) is slidably connected in the water leakage groove (211).

3. The urban design-based rainwater collection system according to claim 1, characterized in that: The side wall of the annular collecting groove (21) at the impurity discharge opening (212) is configured to be in the shape of an arc surface.

4. The urban design-based rainwater collection system according to claim 1, characterized in that: The first cleaning assembly (30) further comprises a connecting rod (32), the connecting rod (32) being arranged at the bottom of the annular collecting groove (21), the connecting rod (32) being rotatably connected to the outer wall of the support rod (12), the connecting rod (32) being respectively fixedly connected to the two cleaning plates (31), the middle part of the connecting rod (32) being fixedly connected to a connecting ring (33), the connecting ring (33) being coaxially arranged with the support rod (12).

5. The urban design-based rainwater collection system according to claim 4, characterized in that: The linkage assembly (50) comprises a rack (51), one end of the rack (51) is fixedly connected to the upper part of the floating plate (40), the rack (51) is meshedly connected to a first gear (52), the first gear (52) is rotatably connected to one side of the support rod (12), the first gear (52) is coaxially fixedly connected to a first bevel gear (53), the first bevel gear (53) is rotatably connected to a second bevel gear (54), a connecting rod (55) is fixedly connected to the middle of the second bevel gear (54), the connecting rod (55) is fixedly connected to a second gear (56), the second gear (56) is meshedly connected to a gear ring (57), and the gear ring (57) is fixedly connected to the bottom of the connecting ring (33).

6. The urban design-based rainwater collection system according to claim 5, characterized in that: One side of the support rod (12) is fixedly connected to a guide seat for limiting the sliding direction of the rack (51), and one side of the support rod (12) is fixedly connected to a fixing seat for mounting a connecting rod (55).

7. The urban design-based rainwater collection system according to claim 1, characterized in that: A plurality of limiting support rods (42) are fixedly connected to the bottom of the floating plate (40) and are used to limit the lowest position thereof.

8. The urban design-based rainwater collection system according to claim 1, characterized in that: The system further comprises a second cleaning component (60), wherein the second cleaning component (60) is arranged between the primary filter plate (11) and the secondary filter cover (20), and the second cleaning component (60) is used to clean the upper surface of the secondary filter cover (20) by being driven by rainwater flowing down from the primary filter plate (11).

9. The urban design-based rainwater collection system according to claim 8, characterized in that: The second cleaning assembly (60) comprises a filter screen (61), a pressure pipe (62) and an impeller (63); the filter screen (61) is arranged at the water leakage port of the first filter plate (11) for filtering; the pressure pipe (62) is fixedly connected to the bottom of the filter screen (61); the impeller (63) is rotatably connected to the outer wall of the support rod (12); the bottom end of the pressure pipe (62) is arranged toward the impeller (63); and the diameter of the pressure pipe (62) decreases from top to bottom; the bottom of the impeller (63) is fixedly connected to a rotating seat (65) via a connecting rod (64); the rotating seat (65) is rotatably connected to the outer wall of the support rod (12); a plurality of scrapers (66) are fixedly connected to the outer side of the rotating seat (65); and the plurality of scrapers (66) are slidably connected to the upper surface of the second filter cover (20).

10. A rainwater collection method based on urban design, using the rainwater collection system based on urban design as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: The rainwater is collected through the opening at the top of the collecting cylinder (10), and the design of the collecting cylinder (10) being flush with the ground is used to maximize the collection of surface rainwater; Preliminarily filtering large impurities in rainwater entering the collection cylinder (10) through the primary filter plate (11) to protect the internal structure of the system and reduce the burden of subsequent filtering; Using the multiple first filter holes (201) of the secondary filter cover (20), the rainwater filtered by the primary filter plate (11) is subjected to a more detailed secondary filtration so as to remove smaller debris and particles; Collecting and separating impurities filtered by the secondary filter cover (20) into the annular collection tank (21), discharging the accumulated impurities into the collection channel (110) through the impurity discharge port (212), and further transferring the impurities to an external processing facility through the impurity discharge channel (120); As the water level in the collection cylinder (10) changes, the floating plate (40) moves up and down, and controls the cleaning plate (31) in the first cleaning assembly (30) through the linkage assembly (50) to slide along the inner wall of the annular collection groove (21) according to a preset trajectory, so as to remove accumulated debris on the inner wall of the annular collection groove (21), thereby ensuring filtering efficiency and maintaining the clean state of the annular collection groove (21); When the water level inside the collection cylinder (10) reaches the maximum height set by the overflow port (14), the floating plate (40) is at its highest position, triggering the cleaning plate (31) to return to the initial position, preparing for the next round of cleaning action; When the water inside the collection cylinder (10) is used, that is, the water level drops, the linkage assembly (50) responds to the change in the position of the floating plate (40) and activates the cleaning plate (31) to perform a cleaning and impurity removal action along the annular collection groove (21), so as to maintain the continuous operation efficiency and cleanliness of the system.

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