Green building rainwater recycling device
By dynamically adjusting the gradual adjuster and eddy current adapter, combined with the venting auxiliary component, the adaptability problem of existing rainwater harvesting devices under different rainfall conditions is solved, achieving efficient rainwater collection and water purification, and improving the stability and utilization rate of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-10
AI Technical Summary
The existing building rainwater harvesting devices have fixed flow channels and drainage structures, which cannot be dynamically adjusted according to real-time rainfall flow. This leads to easy accumulation and overflow during heavy rain, rapid rainwater loss during light rain, poor adaptability to operating conditions, and low rainwater recycling rate.
By employing a gradual adjuster, eddy current adapter, and venting auxiliary components, the water passage is adjusted by driving the rotating plate and side plate with a hydraulic cylinder to form a dynamic eddy current guide. Combined with an intelligent control system, this achieves adaptive adjustment of rainwater flow and separation of initial impurities.
It improves rainwater harvesting efficiency and adaptability to operating conditions, prevents siltation, overflow and loss, enhances rainwater utilization, and ensures water quality by purifying initial rainwater, thus extending equipment life.
Smart Images
Figure CN122358745A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rainwater harvesting technology, specifically a rainwater harvesting device for green buildings. Background Technology
[0002] Against the backdrop of the rapid development of green buildings, rainwater harvesting and recycling is an important technological means for building water conservation and environmental protection. It can effectively collect natural rainwater scattered from building roofs and facades, store and reuse unconventional water resources, effectively alleviate urban water pressure, and reduce building operating energy consumption. It is an indispensable part of the modern green building water-saving system. At present, rainwater harvesting devices have been widely used in various civil and commercial green buildings. However, the mainstream rainwater harvesting equipment on the market has a relatively traditional structural design, mostly adopting an integrated fixed guide and fixed diameter collection structure. The structure has a single function and is difficult to adapt to the variable rainfall conditions in the natural environment. In actual engineering use, it generally suffers from many practical problems such as poor operational stability and low rainwater recycling rate, and cannot fully meet the needs of green buildings for efficient water conservation and stable water collection.
[0003] Existing building rainwater harvesting systems suffer from numerous substantial technical deficiencies in practical applications, making them ill-suited for complex natural rainfall scenarios. Traditional harvesting equipment employs fixed-structure internal flow channels and collection troughs, unable to dynamically adjust according to real-time rainfall flow, resulting in extremely poor adaptability. Natural rainfall is characterized by fluctuating amounts and varying flow rates. During heavy downpours, the concentrated and rapid flow of rainwater overwhelms the limited capacity of fixed collection troughs, easily leading to water accumulation and overflow. This not only wastes significant amounts of rainwater but also causes overflowing rainwater to erode building walls and soak equipment components, impacting building facades and equipment lifespan. Conversely, during light rain or drizzle, the dispersed and low-flow rainwater cannot be buffered and collected by fixed flow structures. The rapid flow and short collection time result in most of the small amounts of rainwater being lost, leading to poor rainwater harvesting efficiency and extremely low resource utilization during low-rainfall conditions. Summary of the Invention
[0004] The purpose of this invention is to provide a green building rainwater harvesting device that addresses the problems of existing building rainwater harvesting devices having fixed flow channels and guide structures, which cannot be dynamically adapted and adjusted according to real-time rainfall flow, making it difficult to cope with varying rainfall conditions, and causing rainwater accumulation and overflow during heavy rain and rapid loss of trace amounts of rainwater during light rain.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a green building rainwater harvesting device, comprising: a collection tank and a pipe installed at the drain outlet of the collection tank, the collection tank being connected to a ground rainwater harvesting tank via the pipe; a gradient adjuster, located inside the collection tank, for adjusting the internal flow space of the collection tank according to the amount of rainwater, the gradient adjuster including a rotating plate rotatably connected to the inside of the collection tank and two side plates rotatably connected to the top of the rotating plate, the two side plates adjusting the state of the internal flow space of the rotating plate; a vortex adapter, located at the top of the drain outlet inside the collection tank, for forming a vortex when rainwater is discharged from the collection tank; and an venting auxiliary component, located on the side wall of the collection tank, for venting and discharging rainwater with a high volume of debris in the initial rainwater.
[0006] As a further embodiment of the present invention: the gradient adjuster also includes fixed seats that are fixedly connected to the inner side of the collection tank and the bottom of the rotating plate respectively, and hydraulic cylinders are fixedly connected to the inner sides of the two fixed seats through rotating shafts, so that the hydraulic cylinders can rotate during the extension and retraction process.
[0007] As a further embodiment of the present invention: a state adjustment component for adjusting the state of the side plate is provided between the rotating plate and the collecting groove;
[0008] The state adjustment assembly includes a rotating shaft fixedly connected to the bottom of the side plate, and one end of the rotating shaft extends through to the bottom of the rotating plate and is fixedly connected to a spur gear. A spur gear meshes with a rack on one side. A suspension seat is fixedly connected to the bottom of the rotating plate, and a connecting spring is installed between the suspension seat and the rack. An inclined plate is fixedly connected to the top of the side plate.
[0009] As a further embodiment of the present invention: the state adjustment component further includes a spherical rod fixedly connected to one end of the rack, one end of the spherical rod extending through to the outside of the suspension seat and slidably connected to the suspension seat, a trapezoidal block fixedly connected to the top of the collection groove, and an inclined surface provided on the inner side of the trapezoidal block, the front end of the spherical rod abutting against the inclined surface.
[0010] As a further embodiment of the present invention: the vortex adapter includes an arc-shaped sleeve fixedly connected to the drain outlet inside the collection tank, a rotating sleeve rotatably connected to the outer wall of the arc-shaped sleeve, a flow guide plate fixedly connected to one side of the rotating sleeve, and the end of the flow guide plate initially abutting against the inner side of one of the side plates, the rotating sleeve and the flow guide plate dividing the inner side of the collection tank into a retention tank.
[0011] As a further embodiment of the present invention: an elastic pad is fixedly connected to the inner side of the collection groove at the end of the rotating plate, and the elastic pad is in close contact with the end of the rotating plate, and the path of movement of the end of the diversion plate matches the shape of the front end of the elastic pad.
[0012] As a further embodiment of the present invention: the eddy current adapter further includes an arc-shaped groove formed on the outer wall of the arc-shaped sleeve, an arc-shaped block is rotatably connected to the inner side of the arc-shaped groove, and the arc-shaped block is fixedly connected to the rotating sleeve, and an arc-shaped spring is installed between the arc-shaped groove and the arc-shaped block.
[0013] As a further embodiment of the present invention: the venting auxiliary component includes a spiral sewage discharge trough fixedly connected to the outer wall of the collection tank, the side wall of the collection tank is provided with a through groove that matches the water inlet of the spiral sewage discharge trough, and a diverter plate is rotatably connected to the inner side of the through groove.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. This invention uses a gradual adjuster in conjunction with a state adjustment component to work together. It can adaptively adjust the tilt angle of the rotating plate and the opening and closing distance of the two side plates according to the real-time rainfall, dynamically switch the cross-section of the water passage inside the collection tank and the water flow velocity. Under heavy rain conditions, it widens the flow channel and quickly discharges water to prevent overflow, while under light rain conditions, it narrows the flow channel and slows down the water flow to prevent loss. It effectively adapts to different rainfall intensities and greatly improves the overall efficiency and adaptability of rainwater recycling.
[0016] 2. The present invention features an vortex adapter that adaptively adjusts synchronously with the side plate posture, creating a dynamic vortex guiding effect at the drain outlet. This regulates the water flow, eliminates drainage blind spots and turbulent water accumulation, and achieves automatic reset without power using an arc spring. Combined with an elastic pad and retention groove sealing drainage structure, it effectively avoids mechanical motion interference, reduces wear, prevents accumulation and jamming, and improves the equipment's adjustment sensitivity and service life.
[0017] 3. The present invention is equipped with an venting auxiliary component to realize intelligent graded water treatment, which can automatically discharge high-impurity sewage at the beginning of rainfall, purify and recycle water quality from the source, and avoid pipe and tank blockage and water pollution; at the same time, it can automatically divert and depressurize when the rainwater load in the tank is pressurized, prevent equipment leakage and deformation, and effectively improve the stability and protection performance of the device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the inner structure of the collection tank of the present invention;
[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a schematic diagram of the splitter plate of the present invention being opened;
[0022] Figure 5 This is a schematic diagram of the bottom structure of the rotating plate of the present invention;
[0023] Figure 6 For the present invention Figure 5 Enlarged view at point B in the middle;
[0024] Figure 7 This is a schematic diagram of the inclined plate adjustment of the present invention;
[0025] Figure 8 This is an exploded view of the arc-shaped sleeve and the rotating sleeve of the present invention;
[0026] Figure 9 This is a schematic diagram of the elastic pad bonding of the present invention.
[0027] In the diagram: 1. Collection trough; 2. Spiral sewage discharge trough; 3. Arc-shaped sleeve; 4. Diversion plate; 5. Arc-shaped spring; 6. Rotating plate; 7. Inclined plate; 8. Side plate; 9. Rotating sleeve; 10. Retention trough; 11. Diverting plate; 12. Elastic pad; 13. Hydraulic cylinder; 14. Fixed seat; 15. Trapezoidal block; 16. Ball rod; 17. Straight rack; 18. Spur gear; 19. Rotating shaft; 20. Suspension seat; 21. Connecting spring; 22. Arc-shaped groove; 23. Arc-shaped block. Detailed Implementation
[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.
[0030] Please see Figures 1-9This embodiment provides a green building rainwater harvesting device, including: a collection tank 1 and a pipe installed at the drain outlet of the collection tank 1, the collection tank 1 being connected to a ground rainwater harvesting tank via the pipe; a gradual adjustment mechanism, located inside the collection tank 1, used to adjust the internal flow space of the collection tank 1 according to the amount of rainwater, the gradual adjustment mechanism including a rotating plate 6 rotatably connected to the inside of the collection tank 1 and two side plates 8 rotatably connected to the top of the rotating plate 6, the two side plates 8 adjusting the state of the internal flow space of the rotating plate 6; and an emptying auxiliary component, located on the side wall of the collection tank 1, used to empty and discharge rainwater with a large amount of debris in the initial rainwater; the gradual adjustment mechanism also includes fixed seats 14 respectively fixedly connected to the inside of the collection tank 1 and the bottom of the rotating plate 6, the inner sides of the two fixed seats 14 being fixedly connected to hydraulic cylinders 13 via rotating shafts, so that the hydraulic cylinders 13 can... During the extension and retraction process, it can rotate. A state adjustment component for adjusting the state of the side plate 8 is provided between the rotating plate 6 and the collection tank 1. The state adjustment component includes a rotating shaft 19 fixedly connected to the bottom of the side plate 8, and one end of the rotating shaft 19 passes through to the bottom of the rotating plate 6 and is fixedly connected to a spur gear 18. A spur rack 17 meshes with one side of the spur gear 18. A suspension seat 20 is fixedly connected to the bottom of the rotating plate 6, and a connecting spring 21 is installed between the suspension seat 20 and the spur rack 17. An inclined plate 7 is fixedly connected to the top of the side plate 8. The state adjustment component also includes a ball rod 16 fixedly connected to one end of the spur rack 17. One end of the ball rod 16 passes through to the outside of the suspension seat 20 and is slidably connected to the suspension seat 20. A trapezoidal block 15 is fixedly connected to the top of the collection tank 1, and an inclined surface is provided on the inner side of the trapezoidal block 15. The front end of the ball rod 16 abuts against the inclined surface.
[0031] First, the collection tank 1 is installed on a building that can collect and store water. Rainwater flowing from the building's roof and facade can naturally collect into the collection tank 1, and then be guided through the drainage outlet at the bottom of the collection tank 1 to the ground rainwater recycling tank, thus completing the centralized collection and storage of rainwater. The collection tank 1 is equipped with a spiral sewage trough 2 on its side. The outlet of the spiral sewage trough 2 is connected to the municipal sewage pipe through a sewage pipe. It can work with the venting auxiliary components on the side wall of the collection tank 1 to complete the initial venting and sewage discharge of rainwater with high impurities and accumulated water and debris. This effectively intercepts rainwater impurities, purifies and recycles rainwater, and prevents debris from entering the ground rainwater recycling tank, causing pipe blockage and water pollution, thus ensuring the stable operation of the entire set of equipment.
[0032] This device is equipped with a fully automatic intelligent control system (this is a mature existing technology, so this solution does not elaborate on it too much). The inner side of the collection tank 1 is equipped with a sensor for detecting rainfall, which can collect rainfall data in real time and accurately. The outer side of the collection tank 1 is equipped with a solar panel, an energy storage battery and a PLC controller. The solar panel and the energy storage battery can use clean energy to power the equipment independently, which can significantly reduce the energy consumption of the device and conform to the construction concept of green building energy conservation and low carbon. The PLC controller can uniformly manage all detection and execution components such as sensors, servo motors, and hydraulic cylinders 13, so as to realize the stable operation of the device with full automation and unattended operation.
[0033] When the sensor detects a large amount of rainfall, the PLC controller controls the output end of the hydraulic cylinder 13 to extend upward, pushing the end of the rotating plate 6 away from the drain outlet to lift upward, increasing the tilt angle of the rotating plate 6, effectively accelerating the flow rate of rainwater inside the collection tank 1, quickly diverting large flow of rainwater, avoiding the accumulation and overflow of rainwater in the collection tank 1, and greatly improving the rainwater drainage and recycling throughput under heavy rain conditions.
[0034] When the sensor detects that the rainfall is small and the rainwater flow is slow, the PLC controller controls the output end of the hydraulic cylinder 13 to retract downward, reduce the tilt angle of the rotating plate 6, slow down the flow speed of rainwater inside the collection tank 1, extend the rainwater diversion buffer time, avoid the rapid loss of small amounts of rainwater, and effectively improve the rainwater collection and utilization rate.
[0035] As the end of the rotating plate 6 gradually lowers from its tilted-up position, the spherical rod 16 slides along the inner inclined surface of the trapezoidal block 15 at the top of the collection tank 1. The limiting and guiding effect of the inclined surface pushes the rack 17 to move horizontally towards the rotating shaft 19. At this time, the spur gear 18, which meshes with the rack 17, rotates under the driving force, synchronously driving the rotating shaft 19 to rotate. Ultimately, this drives the side plates 8 mounted on the top of the rotating shaft 19 to rotate synchronously, causing the distance between the two side plates 8 near the drain outlet of the collection tank 1 to gradually shrink, completing the adaptive narrowing adjustment of the water flow channel. Conversely, when the hydraulic cylinder 13 drives the end of the rotating plate 6 to tilt upwards, the spherical rod 16 slides back to its original position, driving the rack 17 and spur gear 18 to reset in conjunction, so that the distance between the two side plates 8 is fully extended to its maximum state.
[0036] Through the mechanical linkage between the state adjustment component and the gradual adjuster, the opening and closing angle of the side plate 8 can be adaptively adjusted according to the tilt angle change of the rotating plate 6, so as to realize the intelligent dynamic adjustment of the water passage inside the collection tank 1, accurately adapt to different rainfall conditions, and effectively optimize the rainwater flow rate and collection efficiency. During the actual adjustment process, when the hydraulic cylinder 13 drives the end of the rotating plate 6 to gradually lower and flatten from the tilted state, the ball rod 16 will slide against the inner inclined surface of the trapezoidal block 15 at the top of the collection tank 1. Relying on the guiding and limiting effect of the inclined surface of the trapezoidal block 15, it will push the rack 17 to move smoothly in the direction of the rotating shaft 19. Through the meshing transmission between the rack 17 and the spur gear 18, the spur gear 18 is driven to rotate and drive the rotating shaft 19 to rotate synchronously. This will drive the two side plates 8 to rotate inward synchronously, so that the distance between the two side plates 8 near the drain outlet of the collection tank 1 gradually shrinks, actively narrowing the rainwater flow channel. This can match the working conditions of light rain. With the reduced tilt angle of the rotating plate 6, it can effectively slow down the flow speed of rainwater, avoid the rapid rinsing and loss of a small amount of rainwater, extend the rainwater buffer collection time, and significantly improve the rainwater collection and utilization rate in light rain weather.
[0037] Conversely, when encountering heavy rainfall, the hydraulic cylinder 13 drives the end of the rotating plate 6 to tilt upwards. At this time, the spherical rod 16 disengages from the squeezing limit of the inclined surface of the trapezoidal block 15, and in conjunction with the connecting spring 21 between the suspension seat 20 and the rack 17, elastic reset is achieved. This causes the rack 17 to slide in the opposite direction and the spur gear 18 to rotate, driving the two side plates 8 to expand outwards synchronously, maximizing the flow distance between the two side plates 8. The structure of the side plates 8 with the maximum opening can significantly widen the water flow cross section inside the collection tank 1, completely avoiding the problems of blockage and poor flow of large-volume rainwater. Combined with the rapid guiding effect of the large tilt angle of the rotating plate 6, it greatly improves the flow and discharge capacity of rainwater, and can quickly drain large amounts of rainwater during heavy rain. It effectively prevents rainwater accumulation and overflow inside the collection tank 1, fully adapts to the drainage and recycling needs of heavy rainfall, and ensures the stability of the device operation under heavy rain conditions.
[0038] Please see Figures 1-4The vortex adapter, located at the top of the drain outlet inside the collection tank 1, is used to create a vortex when rainwater is discharged from the collection tank 1. The vortex adapter includes an arc-shaped sleeve 3 fixedly connected to the drain outlet inside the collection tank 1. A rotating sleeve 9 is rotatably connected to the outer wall of the arc-shaped sleeve 3. A diverter plate 4 is fixedly connected to one side of the rotating sleeve 9, and the end of the diverter plate 4 initially abuts against the inner side of one of the side plates 8. The rotating sleeve 9 and the diverter plate 4 divide the inner side of the collection tank 1 into a retention trough. 10. An elastic pad 12 is fixedly connected to the inner side of the collection tank 1 at the end of the rotating plate 6, and the elastic pad 12 is in close contact with the end of the rotating plate 6. The path of movement of the end of the diversion plate 4 matches the shape of the front end of the elastic pad 12. The vortex adapter also includes an arc groove 22 opened on the outer wall of the arc sleeve 3. An arc block 23 is rotatably connected to the inner side of the arc groove 22, and the arc block 23 is fixedly connected to the rotating sleeve 9. An arc spring 5 is installed between the arc groove 22 and the arc block 23.
[0039] The vortex adapter is integrated in the area above the drain outlet of the collection tank 1. It relies on the arc sleeve 3, rotating sleeve 9, flow guide plate 4, arc groove 22, arc block 23 and arc spring 5 to form an adaptive swinging vortex guide structure. At the same time, it is equipped with retention groove 10, elastic pad 12 and multiple sealing drainage structure. It can adjust the guide posture synchronously with the opening and closing action of side plate 8, and autonomously change the water flow pattern of the drain outlet. It specifically solves the technical defects of traditional rainwater harvesting devices such as unstable water flow, poor adaptability to heavy rain and easy accumulation of dirt and water at the drain outlet.
[0040] During operation, the diversion plate 4 passively swings in tandem with the adjustment stroke of the side plate 8. In heavy rain conditions with the side plate 8 fully extended, the diversion plate 4 remains stationary in its initial installation position. When rainwater flows along the rotating plate 6 into the drainage outlet area, it forms a stable vortex field along the arc-shaped cavity between the rotating sleeve 9 and the arc-shaped sleeve 3. This vortex guiding structure actively gathers and disperses the water flow, replacing the traditional direct, chaotic flow, ensuring uniform and orderly drainage from the outlet. This effectively eliminates drainage blind spots and localized turbulent water accumulation, significantly improving the outlet's maximum flow capacity. It allows large volumes of rainwater to be discharged quickly and smoothly, preventing flow restriction and congestion at the outlet during heavy rain and enhancing the device's flood discharge capacity.
[0041] In the light rain operation state where the side plate 8 converges towards the center, the side wall of the side plate 8 directly pushes against the diversion plate 4, causing an angular deflection. This drives the rotating sleeve 9 to rotate based on the outer ring of the arc-shaped sleeve 3, simultaneously driving the arc-shaped block 23 to slide along the arc-shaped groove 22 and compress the arc-shaped spring 5, thus achieving adaptive fine-tuning of the tilt angle of the diversion plate 4. After the angle is changed, the diversion plate 4 can reduce the bottom guide diameter and change the water flow guide trajectory, concentrating and focusing small amounts of rainwater to prevent small amounts of rainwater from splashing everywhere and flowing away quickly. This effectively gathers scattered rainwater, and in conjunction with the overall channel adjustment, achieves slow and stable flow collection, significantly improving the efficiency of rainwater interception and recycling in low rainfall environments.
[0042] When the side plate 8 is reset and unfolded from its retracted state, the compressed arc spring 5 quickly releases energy, driving the arc block 23 and the rotating sleeve 9 to reset in tandem. This causes the diversion plate 4 to automatically return to its initial working position, achieving automatic reset without power. This ensures that the structure can be adjusted cyclically without manual intervention, improving the intelligent linkage performance of the device. At the same time, the elastic pad 12 set inside the collection tank 1 can perfectly adapt to the swing trajectory of the diversion plate 4, eliminating mechanical motion interference, buffering component friction wear, and extending the service life of the structure.
[0043] In addition, the retention trough 10 formed by the rotating sleeve 9 and the collection trough 1 is protected by multiple seals through sealing gaskets, rubber blocks or top cover plates. With the guide holes reserved in the trough, rainwater that seeps into the retention trough 10 can be drained in time, effectively preventing water accumulation in the trough.
[0044] Please see Figures 1-4 The venting auxiliary component includes a spiral sewage trough 2 fixedly connected to the outer wall of the collection tank 1. The side wall of the collection tank 1 is provided with a through groove that matches the water inlet of the spiral sewage trough 2, and a diversion plate 11 is rotatably connected to the inner side of the through groove.
[0045] In the initial stage of rainfall, dust, building surface deposits, and other impurities in the air are washed into the collection tank 1 by the initial rainwater. At this time, the rainfall sensor collects signals in real time and transmits them to the PLC controller. The PLC controller then starts the servo motor, driving the diversion plate 11 to rotate and open, so that the end of the diversion plate 11 fits against the surface of the guide plate 4. The sealing gasket on the back of the diversion plate 11 forms a closed guide channel. At this time, the initial rainwater carrying a large amount of impurities is precisely guided into the spiral sewage trough 2 through the diversion plate 11, and then directly discharged through the urban sewage pipe connected to the spiral sewage trough 2, preventing the impure initial rainwater from entering the rainwater recycling tank. This structure can specifically remove highly polluted rainwater at the beginning of rainfall, intercepting silt, impurities, and pollutants at the source, effectively purifying the quality of the recycled rainwater, preventing the recycled water from deteriorating, and preventing the pipes and tank from becoming clogged, thus significantly improving the quality of rainwater recycling.
[0046] After the preset time for discharging impurities and wastewater ends, the PLC controller automatically controls the servo motor to reverse drive the diversion plate 11 to reset and close, cutting off the sewage discharge channel. This allows subsequent clean rainwater to flow normally into the bottom recycling pipe of the collection tank 1 for storage and recycling, achieving automated switching between sewage discharge and recycling conditions without manual operation, and adapting to all-weather rain operations.
[0047] When the rainwater accumulation inside the collection tank 1 is large, creating a pressurized load, the PLC controller can control the servo motor to drive the diversion plate 11 to open again based on the operating condition signal. This time, the opening angle is smaller, and the diversion plate 11 is not sealed to the guide plate 4, leaving a diversion gap. Some of the rainwater in the collection tank 1 can be diverted and depressurized through this gap, effectively releasing the pressure of the water accumulated in the tank. This avoids problems such as excessive rainwater load and high pressure inside the collection tank 1, which could cause leakage, structural deformation under pressure, and waste of rainwater. While ensuring the normal recovery of rainwater, it also plays a role in stabilizing pressure, diverting water, preventing leakage, and protecting equipment, significantly improving the operational stability and sealing of the device under high water load conditions.
[0048] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A green building rainwater harvesting device, characterized in that, include: The collection tank (1) and the pipe installed at the drain outlet of the collection tank (1) are connected to the ground rainwater recycling tank through the pipe; A gradient adjuster is located inside the collection trough (1) and is used to adjust the internal flow space of the collection trough (1) according to the amount of rainwater. The gradient adjuster includes a rotating plate (6) rotatably connected to the inside of the collection trough (1) and two side plates (8) rotatably connected to the top of the rotating plate (6). The state of the internal flow space of the rotating plate (6) is adjusted by the two side plates (8). The vortex adapter is located at the top of the drain outlet inside the collection tank (1) and is used to form a vortex when the rainwater inside the collection tank (1) is discharged. The venting auxiliary component is located on the side wall of the collection tank (1) and is used to vent and discharge the load of rainwater and the large amount of debris in the initial rainwater.
2. The green building rainwater harvesting device according to claim 1, characterized in that, The gradient adjuster also includes fixed seats (14) that are fixedly connected to the inner side of the collection tank (1) and the bottom of the rotating plate (6) respectively. The inner sides of the two fixed seats (14) are respectively fixedly connected to hydraulic cylinders (13) through rotating shafts, so that the hydraulic cylinders (13) can rotate during the extension and retraction process.
3. A green building rainwater harvesting device according to claim 2, characterized in that, A state adjustment component for adjusting the state of the side plate (8) is provided between the rotating plate (6) and the collecting groove (1); The state adjustment assembly includes a rotating shaft (19) fixedly connected to the bottom of the side plate (8), and one end of the rotating shaft (19) extends through to the bottom of the rotating plate (6) and is fixedly connected to a spur gear (18). A spur rack (17) meshes with one side of the spur gear (18). A suspension seat (20) is fixedly connected to the bottom of the rotating plate (6), and a connecting spring (21) is installed between the suspension seat (20) and the spur rack (17). An inclined plate (7) is fixedly connected to the top of the side plate (8).
4. A green building rainwater harvesting device according to claim 3, characterized in that, The state adjustment assembly also includes a spherical rod (16) fixedly connected to one end of the rack (17). One end of the spherical rod (16) extends through to the outside of the suspension seat (20) and is slidably connected to the suspension seat (20). A trapezoidal block (15) is fixedly connected to the top of the collection groove (1), and an inclined surface is provided on the inner side of the trapezoidal block (15). The front end of the spherical rod (16) abuts against the inclined surface.
5. A green building rainwater harvesting device according to claim 4, characterized in that, The vortex adapter includes an arc-shaped sleeve (3) fixedly connected to the drain outlet inside the collection tank (1). A rotating sleeve (9) is rotatably connected to the outer wall of the arc-shaped sleeve (3). A diversion plate (4) is fixedly connected to one side of the rotating sleeve (9), and the end of the diversion plate (4) initially abuts against the inner side of one of the side plates (8). The rotating sleeve (9) and the diversion plate (4) divide the inner side of the collection tank (1) into a retention tank (10).
6. A green building rainwater harvesting device according to claim 5, characterized in that, An elastic pad (12) is fixedly connected to the inner side of the collection groove (1) at the end of the rotating plate (6), and the elastic pad (12) is in close contact with the end of the rotating plate (6). The path of the end of the diversion plate (4) is matched with the shape of the front end of the elastic pad (12).
7. A green building rainwater harvesting device according to claim 6, characterized in that, The eddy current adapter also includes an arc groove (22) formed on the outer wall of the arc sleeve (3), an arc block (23) is rotatably connected to the inner side of the arc groove (22), and the arc block (23) is fixedly connected to the rotating sleeve (9). An arc spring (5) is installed between the arc groove (22) and the arc block (23).
8. A green building rainwater harvesting device according to claim 7, characterized in that, The venting auxiliary component includes a spiral drain trough (2) fixedly connected to the outer wall of the collection tank (1). The side wall of the collection tank (1) is provided with a through groove that matches the inlet of the spiral drain trough (2), and a diverter plate (11) is rotatably connected to the inner side of the through groove.