A rainwater collection system and method based on municipal works

Abstract

The application relates to a rainwater collecting system and method based on municipal engineering and relates to the technical field of rainwater collecting. The rainwater collecting system comprises a collecting box, a grid, a water abandoning pipe and a water collecting pipe, a residue collecting box is slidably arranged on the side wall of the collecting box, a filter plate is arranged in the collecting box, a plurality of vibration bases are fixed to the bottom of the filter plate, a rotating shaft is rotatably arranged in the collecting box, a vibration assembly is arranged on the surface of the rotating shaft, a fixing base is fixed to the surface of the water abandoning pipe, a first adjusting rod is rotatably arranged at the end of the fixing base, and an adjusting assembly is arranged on the surface of the first adjusting rod. The rainwater runoff preliminarily intercepted by the grid is secondarily filtered through the residue collecting box, the filter plate and the vibration assembly, the vibration amplitude of the vibration assembly is adaptively adjusted according to the real-time water flow size, the filter plate is continuously vibrated and knocked, the accumulated debris and impurities on the filter plate are smoothly loosened and fallen off, and the impurity interception effect is improved.

Description

Technical Field

[0001] This invention relates to the field of rainwater harvesting technology, specifically to a rainwater harvesting system and method based on municipal engineering. Background Technology

[0002] Municipal engineering rainwater harvesting systems are core infrastructure for sponge city construction. Through the coordinated efforts of the entire chain of collection, pretreatment, storage, purification, reuse, or infiltration, rainwater resources are utilized, urban flooding risks are reduced, and the aquatic ecosystem is improved. It is a key component of modern urban water security and water resource management. The system is designed based on the principles of source reduction, process control, and system governance, prioritizing compliance with national and local standards to ensure safety and compliance. Suspended solids are intercepted by screens, and initial rainwater is discharged through diversion devices. The storage stage widely adopts PP modular water storage tanks, which are pressure-resistant, corrosion-resistant, and have high space utilization. Deep purification uses multi-stage filtration, coagulation sedimentation, or membrane separation technology to remove dissolved pollutants and heavy metals. Disinfection is primarily carried out using ultraviolet disinfection, which is both highly efficient and leaves no chemical residues, ensuring the safety of effluent reuse.

[0003] Currently, in practical applications, municipal engineering rainwater harvesting systems mostly use bar screens as front-end pretreatment facilities. Their structure is relatively simple and can only intercept larger floating objects such as leaves and plastic bags. The interception effect on smaller impurities is limited. These unintercepted impurities will enter the pipes and diversion devices with the water flow. Over time, they can easily cause blockages in the inlet, valves and pipes, reducing the water flow capacity. At the same time, most devices rely on simple rainfall at fixed times and fixed liquid levels to trigger diversion switching. Their control parameters are fixed and uniform, and they cannot adjust the diversion flow rate setting according to the actual working conditions, which affects the system's reuse efficiency.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a rainwater harvesting system and method based on municipal engineering, in order to solve the problems mentioned in the background art of limited interception effect on slightly smaller impurities and inability to adjust the discharge flow rate. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rainwater harvesting system and method based on municipal engineering, comprising a collection box, a grid, a wastewater pipe, and a collection pipe. The top of the collection box is provided with a grid. The wastewater pipe and the collection pipe are disposed inside the collection box. A sludge collection box is slidably installed on the side wall of the collection box. A filter plate is installed inside the collection box. Multiple vibration seats are fixed to the bottom of the filter plate. A rotating shaft is rotatably installed inside the collection box. A vibration assembly is provided on the surface of the rotating shaft. A fixed seat is fixed to the surface of the wastewater pipe. A first adjusting rod is rotatably installed at the end of the fixed seat. An adjusting assembly is provided on the surface of the first adjusting rod. An adjusting connecting rod is fixed to the tail end of the first adjusting rod. A second adjusting rod is slidably installed at the top of the first adjusting rod. An adjusting groove is formed on the surface of the second adjusting rod. A plug is slidably installed at the end of the wastewater pipe.

[0007] The adjustment assembly includes multiple sets of impellers fixed on the surface of the rotating shaft and multiple sets of cams mounted on the surface of the rotating shaft. A transmission link is rotatably mounted on the side wall of the cam, and a vibration block is rotatably connected to the end of the transmission link.

[0008] Preferably, the system further includes a rainwater collection pipe, a rainwater diversion well, a composite flow filter, a rainwater collection tank, and a rainwater clear water tank connected by pipelines. The composite flow filter is connected to the water collection pipe on the bottom right side of the collection box through a pipeline, and the wastewater discharge pipe on the bottom left side of the collection box is connected to the wastewater treatment tank through a pipeline.

[0009] Preferably, the filter plate is installed at an angle, the side wall of the slag collection box has a collection port corresponding to the position of the filter plate, and the bottom of the filter plate is provided with a plurality of vibration springs connected to the inner wall of the collection box.

[0010] Preferably, a float is connected to the end of the second adjusting rod, and the adjusting connecting rod is rotatably connected to the stopper block.

[0011] Preferably, the rotating shaft is located below the filter plate, and the vibrating block slides elastically within the vibrating seat.

[0012] Preferably, the adjustment assembly includes an adjustment seat fixed to the surface of the first adjustment rod, a pressing block slidably installed inside the adjustment seat, a guide block fixed to the inner wall of the pressing block, a limit seat fixed to the inner wall of the adjustment seat, a locking block slidably installed inside the limit seat, and a limit locking block slidably installed inside the locking block.

[0013] Preferably, the guide block has an inclined sidewall, and the guide block is positioned corresponding to the limiting block.

[0014] Preferably, the bottom of the locking block has an arc design corresponding to the adjustment groove, and a limit spring is provided at the end of the locking block. The locking block is connected to the pressing block through the limit spring.

[0015] Preferably, both sides of the limiting block are designed to be inclined, and the limiting block slides within the limiting seat.

[0016] Preferably, the method includes the following steps: S1: Before using the system, manually press the press block to unlock the lock between the first and second adjusting rods, and adjust the position of the float ball of the second adjusting rod according to the working conditions; S2: During rainfall, rainwater is filtered through the grid and filter plate, and the impeller drives the vibrating block to strike the filter plate to complete the sludge removal; S3: Initially, rainwater is discharged through the drainage pipe. After the water level rises, the float moves the plug to seal the drainage pipe, and the rainwater enters the filter through the collection pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the setting of a slag collection box, filter plate, and vibration component, performs secondary filtration on rainwater runoff after initial interception by a bar screen, overcoming the problems of insufficient interception capacity and easy leakage of small impurities in traditional bar screens. At the same time, the vibration amplitude of the vibration component is adaptively adjusted according to the real-time water flow. Through continuous vibration and tapping of the filter plate, the debris and other impurities accumulated on the filter plate are loosened and fall off smoothly, and automatically slide down the inclined filter plate into the slag collection box for centralized collection, improving the impurity interception effect, preventing blockage of the inlet and pipeline from the source, ensuring smooth water flow, realizing automatic impurity cleaning, reducing maintenance workload, and improving the operational stability and efficiency of the rainwater collection pretreatment process.

[0018] 2. This invention, through the setting of a fixed seat, adjusting rod, plug, and adjusting component, flexibly adjusts the relative distance between the first adjusting rod and the second adjusting rod according to the actual working conditions, thereby driving the plug to change the opening and closing timing of the water discharge pipe channel, realizing the adjustment of the initial rainwater discharge flow, improving the adaptability and accuracy of the initial discharge, enhancing the operational stability of the rainwater collection system, and improving the efficiency of water resource utilization. Attached Figure Description

[0019] Figure 1 This is a schematic cross-sectional view of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a partially enlarged structural schematic diagram of the present invention; Figure 4 This is a partial cross-sectional view of the present invention; Figure 5 This is a cross-sectional view of the limiting seat of the present invention; Figure 6 This is a cross-sectional structural diagram from another perspective of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a partial structural diagram of the rotating shaft of the present invention.

[0020] In the diagram: 1. Collection box; 101. Grille; 102. Slag collection box; 2. Filter plate; 201. Vibrating seat; 3. Rotating shaft; 301. Impeller; 302. Cam; 4. Transmission connecting rod; 401. Vibrating block; 5. Wastewater pipe; 501. Fixed seat; 502. Plug; 6. Water collection pipe; 7. First adjusting rod; 701. Adjusting connecting rod; 702. Adjusting seat; 703. Limiting seat; 8. Second adjusting rod; 801. Adjusting groove; 9. Pressing block; 901. Guide block; 902. Limiting block; 903. Locking block. Detailed Implementation

[0021] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0022] Please see Figures 1-8 This invention provides a technical solution: a rainwater harvesting system and method based on municipal engineering, including a collection box 1, a grille 101, a wastewater pipe 5, and a collection pipe 6. The grille 101 is installed on the top of the collection box 1. The wastewater pipe 5 and the collection pipe 6 are installed inside the collection box 1. A sludge collection box 102 is slidably installed on the side wall of the collection box 1, which collects impurities for easy cleaning. A filter plate 2 is installed inside the collection box 1. The grille 101 first intercepts large debris, and the filter plate 2 then filters out fine impurities, achieving dual filtration to avoid pipeline contamination. The filter plate 2 is blocked. Multiple vibrating seats 201 are fixed at the bottom. A rotating shaft 3 is rotatably installed inside the collection box 1. A vibration component is provided on the surface of the rotating shaft 3. A fixed seat 501 is fixed on the surface of the waste water pipe 5. A first adjusting rod 7 is rotatably installed at the end of the fixed seat 501. An adjusting component is provided on the surface of the first adjusting rod 7. An adjusting connecting rod 701 is fixed at the tail end of the first adjusting rod 7. A second adjusting rod 8 is slidably installed at the top of the first adjusting rod 7. An adjusting groove 801 is opened on the surface of the second adjusting rod 8. A plug 502 is slidably installed at the end of the waste water pipe 5. The adjustment assembly includes multiple sets of impellers 301 fixed on the surface of the rotating shaft 3 and multiple sets of cams 302 mounted on the surface of the rotating shaft 3. A transmission link 4 is rotatably mounted on the side wall of the cam 302, and a vibration block 401 is rotatably connected to the end of the transmission link 4. The position of the float and the flow rate can be flexibly adjusted to adapt to different rainfall conditions, making the initial flow rate more accurate and avoiding excessive waste or insufficient pollution of the system.

[0023] As one embodiment of the present invention, the system further includes a rainwater collection pipe, a rainwater diversion well, a composite flow filter, a rainwater collection tank and a rainwater clear water tank connected by pipelines. The composite flow filter is connected to the water collection pipe 6 on the bottom right side of the collection box 1 through a pipeline, and the wastewater pipe 5 on the bottom left side of the collection box 1 is connected to the wastewater treatment tank through a pipeline.

[0024] In one embodiment of the present invention, the filter plate 2 is installed at an angle, relying on gravity for natural guidance, allowing the impurities retained after filtration to automatically slide down the inclined surface of the filter plate 2 and directly correspond to the collection port of the slag collection box 102, avoiding the accumulation of impurities on the surface of the filter plate 2 and ensuring continuous and stable filtration efficiency. The side wall of the slag collection box 102 has a collection port with a position corresponding to the filter plate 2 to receive the impurities that slide down the filter plate 2 and realize the centralized collection of pollutants. The bottom of the filter plate 2 is provided with multiple vibration springs connected to the inner wall of the collection box 1, which cooperate with the vibration component to improve the slag removal effect.

[0025] In one embodiment of the present invention, a float ball is connected to the end of the second adjusting rod 8. It automatically rises and falls with the water level by relying on the buoyancy of rainwater, without the need for external power. The adjusting rod 701 is rotatably connected to the plug 502, which converts the rotation of the adjusting rod 701 into the linear sliding of the plug 502, thus precisely controlling the opening and closing of the wastewater pipe 5.

[0026] In one embodiment of the present invention, the rotating shaft 3 is located below the filter plate 2, and the impeller 301 is driven directly by the falling water flow. The vibrating block 401 slides elastically in the vibrating seat 201, which ensures the effect of knocking and cleaning the filter plate 2 while reducing the impact between components and extending the service life of the components.

[0027] In one embodiment of the present invention, the adjustment assembly includes an adjustment seat 702 fixed to the surface of the first adjustment rod 7, a pressing block 9 slidably installed inside the adjustment seat 702, a guide block 901 fixed to the inner wall of the pressing block 9, a limit seat 703 fixed to the inner wall of the adjustment seat 702, a locking block 903 slidably installed inside the limit seat 703, and a limit locking block 902 slidably installed inside the locking block 903. The limit seat 703 precisely limits the locking block 903 and the limit locking block 902, ensuring precise controllability of locking and unlocking actions.

[0028] As one embodiment of the present invention, the side wall of the guide block 901 is inclined, and the position of the guide block 901 corresponds to the position of the limiting block 902 to form a stable guiding transmission, which smoothly converts the pressing force into lateral thrust, avoids problems such as jamming and misalignment, and makes the limiting block 902 bear force evenly.

[0029] As one embodiment of the present invention, the bottom of the locking block 903 is designed with an arc corresponding to the adjustment groove 801, which makes the two fit together more firmly and prevents loosening and displacement during operation. A limit spring is provided at the end of the locking block 903. The locking block 903 is connected to the pressing block 9 through the limit spring. After the pressing block 9 is released, the locking block 903 can be automatically driven to reset and tighten, realizing self-locking and improving adjustment efficiency.

[0030] As one embodiment of the present invention, the limiting block 902 is inclined on both sides, and cooperates with the guide block 901 to form a guiding transmission. The limiting block 902 slides within the limiting seat 703 to ensure the reliability of the locking and resetting actions.

[0031] As one embodiment of the present invention, the method includes the following steps: S1: Before using the system, manually press the pressing block 9 to unlock the lock between the first adjusting rod 7 and the second adjusting rod 8, and adjust the float position of the second adjusting rod 8 according to the working conditions; S2: During rainfall, rainwater is filtered through the grid 101 and filter plate 2, and the impeller 301 drives the vibrating block 401 to strike the filter plate 2 to complete the sludge removal. S3: Initial rainwater is discharged through the drainage pipe 5. After the water level rises, the float moves the plug 502 to block the drainage pipe 5, and the rainwater enters the filter through the collection pipe 6.

[0032] Working principle: Before the rainwater harvesting system based on municipal engineering is put into use, the operator first manually presses the pressing block 9, causing it to descend along the inner wall of the adjusting seat 702. Simultaneously, the guide block 901 fixed to the inner wall of the pressing block 9 moves downward and presses against the limiting block 902, causing the limiting block 902 to slide inside the locking block 903. At the same time, under the linear limiting constraint of the limiting seat 703, the limiting block 902 can only make linear displacements, thereby driving the locking block 903 to move upward, forming an opposing force with the pressing block 9. Move the locking block 903 away from the adjustment groove 801 to release the lock between the first adjustment rod 7 and the second adjustment rod 8. Then, based on the actual working conditions such as rainfall patterns and surface pollution levels, pull the second adjustment rod 8 to adjust the relative installation position of its end float. After the float position is adjusted, release the pressing block 9. Under the elastic reset action of the limit spring, the pressing block 9 moves upward to complete the reset. The locking block 903 moves closer to and presses against the adjustment groove 801 again, locking the positions of the first adjustment rod 7 and the second adjustment rod 8. When it rains in the system installation area, the rainwater carrying various impurities first undergoes primary interception through the grille 101, removing pollutants such as leaves and large particles. Then, it falls onto the filter plate 2 for secondary filtration, intercepting fine impurities. The filtered water flow impacts the impeller 301 mounted on the surface of the rotating shaft 3, driving the impeller 301 to drive the rotating shaft 3 to rotate continuously. The cam 302 fixed on the rotating shaft 3 rotates synchronously, which in turn pulls the transmission connecting rod 4 on the side wall of the cam 302, causing the vibrating block 401 to reciprocate linearly along the inner wall of the vibrating seat 201, continuously striking the bottom of the filter plate 2. Under the action of vibration, the fine impurities adhering to the filter plate 2 can be easily loosened and detached, and automatically slide down the inclined filter plate 2 into the slag collection box 102 for centralized collection. The rotation of the impeller 301 changes dynamically with the real-time rainfall, adaptively adjusting the striking intensity of the vibrating block 401 to ensure thorough cleaning of impurities while avoiding excessive vibration that could damage the components. After the initial rainwater enters the collection box 1, it is directly discharged through the wastewater pipe 5, achieving effective wastewater diversion. As the rainfall continues to increase, the rainwater quality gradually becomes clearer, and the rainwater level in the collection box 1 gradually rises. The float installed at the end of the second adjusting rod 8 rises with the water level, driving the first adjusting rod 7 to rotate around the end of the fixed base 501. The adjusting connecting rod 701 fixed at the tail end of the first adjusting rod 7 rotates along with it. Since the adjusting connecting rod 701 is rotatably connected to the plug 502, while the adjusting connecting rod 701 rotates with the first adjusting rod 7, the plug 502 slides linearly along the inner wall of the wastewater pipe 5, gradually blocking the flow port of the wastewater pipe 5, terminating the wastewater diversion process. The rainwater will then enter the composite flow filter through the collection pipe 6.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rainwater harvesting system based on municipal engineering, comprising a collection box (1), a grid (101), a wastewater pipe (5), and a collection pipe (6), characterized in that: The top of the collection box (1) is provided with a grid (101). Inside the collection box (1) are a waste water pipe (5) and a water collection pipe (6). A slag collection box (102) is slidably installed on the side wall of the collection box (1). Inside the collection box (1) are a filter plate (2). At the bottom of the filter plate (2) are multiple vibrating seats (201). Inside the collection box (1) are a rotating shaft (3). On the surface of the rotating shaft (3) are a vibration component. On the surface of the waste water pipe (5) are a fixed seat (501). At the end of the fixed seat (501) are a first adjusting rod (7). On the surface of the first adjusting rod (7) are an adjusting component. At the tail end of the first adjusting rod (7) is an adjusting connecting rod (701). At the top of the first adjusting rod (7) are a second adjusting rod (8). On the surface of the second adjusting rod (8) are an adjusting groove (801). At the end of the waste water pipe (5) are a plug (502). The adjustment assembly includes multiple sets of impellers (301) fixed on the surface of the rotating shaft (3) and multiple sets of cams (302) mounted on the surface of the rotating shaft (3). A transmission link (4) is rotatably mounted on the side wall of the cam (302), and a vibration block (401) is rotatably connected to the end of the transmission link (4).

2. The rainwater harvesting system based on municipal engineering according to claim 1, characterized in that: The system also includes a rainwater collection pipe, a rainwater diversion well, a composite flow filter, a rainwater collection pool and a rainwater clear water pool connected by pipelines. The composite flow filter is connected to the water collection pipe (6) on the bottom right side of the collection box (1) through a pipeline. The wastewater pipe (5) on the bottom left side of the collection box (1) is connected to the wastewater treatment pool through a pipeline.

3. A rainwater harvesting system based on municipal engineering as described in claim 1, characterized in that: The filter plate (2) is installed at an angle. The side wall of the slag collection box (102) has a collection port corresponding to the position of the filter plate (2). The bottom of the filter plate (2) is provided with multiple vibration springs connected to the inner wall of the collection box (1).

4. A rainwater harvesting system based on municipal engineering as described in claim 1, characterized in that: The second adjusting rod (8) is connected to a float at its end, and the adjusting connecting rod (701) is rotatably connected to the stopper (502).

5. A rainwater harvesting system based on municipal engineering as described in claim 1, characterized in that: The rotating shaft (3) is located below the filter plate (2), and the vibrating block (401) slides elastically within the vibrating seat (201).

6. A rainwater harvesting system based on municipal engineering as described in claim 1, characterized in that: The adjustment assembly includes an adjustment seat (702) fixed to the surface of the first adjustment rod (7), a pressing block (9) slidably installed inside the adjustment seat (702), a guide block (901) fixed to the inner wall of the pressing block (9), a limit seat (703) fixed to the inner wall of the adjustment seat (702), a locking block (903) slidably installed inside the limit seat (703), and a limit locking block (902) slidably installed inside the locking block (903).

7. A rainwater harvesting system based on municipal engineering as described in claim 6, characterized in that: The guide block (901) has an inclined sidewall and its position corresponds to the limiting block (902).

8. A rainwater harvesting system based on municipal engineering as described in claim 6, characterized in that: The bottom of the locking block (903) is designed with an arc corresponding to the adjustment groove (801). The end of the locking block (903) is provided with a limit spring. The locking block (903) is connected to the pressing block (9) through the limit spring.

9. A rainwater harvesting system based on municipal engineering as described in claim 6, characterized in that: The limiting block (902) is inclined on both sides, and the limiting block (902) slides within the limiting seat (703).

10. A method of using a rainwater harvesting system based on municipal engineering, applicable to the rainwater harvesting system based on municipal engineering as described in any one of claims 1-9, characterized in that: The method includes the following steps: S1: Before using the system, manually press the pressing block (9) to unlock the lock between the first adjusting rod (7) and the second adjusting rod (8), and adjust the float position of the second adjusting rod (8) according to the working conditions; S2: During rainfall, rainwater is filtered through the grid (101) and filter plate (2), and the impeller (301) drives the vibrating block (401) to strike the filter plate (2) to complete the slag removal; S3: Initial rainwater is discharged through the wastewater pipe (5). After the water level rises, the float moves the plug (502) to block the wastewater pipe (5), and the rainwater enters the filter through the collection pipe (6).

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