Rainwater collecting and recycling device and using method thereof

Abstract

The invention relates to a rainwater collection and recycling device and a use method thereof. The device comprises a collection mechanism, a pretreatment mechanism, a purification mechanism, a water storage mechanism and an output mechanism which are matched in sequence. The collecting mechanism comprises a storage column, a telescopic assembly and a water collecting assembly; the pretreatment mechanism is provided with a separation area, a sludge collection area and a slag scraping assembly and is matched with a filter pipe; a disinfection area, a filtration area and a detection area are sequentially arranged in a second shell of the purification mechanism, and a reflux pump is arranged; the water storage mechanism comprises a third shell, a heating element, a refrigerating element and a liquid level sensor, the output mechanism supplies water through a liquid supply pump, a circulating main pipe and a branch pipe. All the mechanisms are sequentially matched to achieve rainwater collection and cyclic utilization. Rainwater is conveyed to the pretreatment mechanism through the collection pipe for solid-liquid separation, then is disinfected, filtered and detected through the purification mechanism, is stored in the water storage mechanism after reaching the standard, and finally is conveyed to each water consumption point through the output mechanism, so that the device can cooperate with a miscellaneous water pipe network in a building, impurities are prevented from entering a drainage branch pipe, and the blocking risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of rainwater harvesting technology, and in particular to a rainwater harvesting and reuse device and its usage method. Background Technology

[0002] In the field of architecture, the roof, as a crucial interface between a building and its external environment, not only fulfills basic functions such as shading, waterproofing, and insulation, but also serves as a key carrier for rainwater harvesting. With the increasing application of concepts such as green building and sponge cities in architectural design, rainwater harvesting systems have become an important component of modern building water supply and drainage systems and ecological design.

[0003] Substations occupy a large area, with a considerable total roof area, providing excellent conditions for rainwater harvesting. The operation and maintenance of substations also require significant amounts of miscellaneous water, such as irrigation for green areas, washing of ground and equipment areas, and replenishment of fire-fighting water tanks. Currently, these water uses largely rely on municipal water networks, which is costly and does not reflect the resource recycling concept of green building. However, substations have special requirements for water safety, especially when used as backup fire-fighting water sources. Water quality must be guaranteed. Traditional rainwater harvesting systems are difficult to match with the substation's building structure, load requirements, and stringent water quality standards, and lack intelligent management, failing to effectively integrate with the substation's fire-fighting and irrigation systems.

[0004] Existing rainwater harvesting systems adapted for building roofs still have the following architectural-related technical shortcomings in terms of compatibility with building structures, integration with building water supply and drainage systems, and adaptability to building environmental maintenance:

[0005] (i) Poor compatibility with building roof structure, damaging building safety and functionality: Traditional rainwater collection devices mostly adopt the installation mode of "roof fixed bracket + rainwater collection trough". The bracket needs to penetrate the roof waterproof layer and insulation layer for fixing, which can easily lead to an increased risk of roof leakage and violate building waterproof design specifications; some foldable devices shift their center of gravity after unfolding, which is not compatible with the roof load design and can easily cause roof structure deformation after long-term use.

[0006] (ii) Rainwater carrying roof dust, paint peelings, fallen leaves and other impurities can easily clog building water supply and drainage branch pipes, leading to an increase in the frequency of pipe cleaning, which does not conform to the design principle of "low clogging and easy maintenance" of building water supply and drainage pipes; at the same time, the lack of rainwater runoff control design makes it easy for rainwater to backflow into the building interior or overflow the roof drain during rainstorms, exacerbating the pressure on the building roof drainage system.

[0007] (iii) Disconnected from building environmental maintenance needs, affecting building life cycle costs: From the perspective of building environmental maintenance, the existing equipment has insufficient pretreatment capacity, poor water quality stability after rainwater purification, and is prone to soil compaction when used for greening irrigation and easy to clog toilet fixtures when used for toilet flushing.

[0008] Therefore, it is necessary to design a rainwater harvesting and recycling device that is compatible with the building roof structure, the building water supply and drainage system, and the building environmental maintenance, in order to meet the requirements of green buildings for water resource recycling and improve the building's ecological performance and operation and maintenance safety. Summary of the Invention

[0009] In view of the shortcomings of the prior art, the purpose of this invention is to provide a rainwater harvesting and reuse device and its usage method to solve one or more problems in the prior art.

[0010] To achieve the above objectives, the technical solution of the present invention is as follows:

[0011] A rainwater harvesting and reuse device, the device comprising:

[0012] A collection mechanism, comprising a storage column, a telescopic component, and a water collection component, wherein the telescopic component is partially disposed within the storage column and acts on the water collection component;

[0013] The pretreatment mechanism includes a first housing, a cover, and a sludge scraper assembly. The housing includes a connected separation zone and a sludge collection zone. The sludge scraper assembly is configured to cooperate with the cover and is partially located within the separation zone. The pretreatment mechanism also includes a filter tube partially disposed in the separation zone and configured to cooperate with the sludge scraper assembly.

[0014] The purification mechanism includes a second housing, in which a disinfection zone, a filtration zone, and a detection zone are sequentially arranged; it also includes a reflux pump, one end of which is connected to the disinfection zone and the other end of which is connected to the detection zone;

[0015] A water storage mechanism, comprising a third housing, within which a heating element, a cooling element, and a liquid level sensor are disposed;

[0016] The output mechanism includes a liquid supply pump, one end of which is connected to the third housing, and the other end is connected to a circulation main pipe, which is also connected to a circulation branch pipe.

[0017] The collection mechanism, the pretreatment mechanism, the purification mechanism, the water storage mechanism, and the output mechanism are arranged in sequence to achieve rainwater collection and recycling.

[0018] Furthermore, the telescopic assembly includes a cylinder, a piston rod, a mounting block, and a first motor located within the storage column. One end of the piston rod is connected to the cylinder, and the other end is connected to the mounting block. The first motor is connected to the mounting block and is located on the side of the mounting block away from the piston rod.

[0019] Furthermore, the telescopic assembly also includes a sealing block and a threaded post. The sealing block is movably disposed within the receiving post and located on the side of the first motor away from the mounting block. The threaded post passes through and engages with the sealing block, and one end is connected to the first motor. The telescopic assembly also includes an adjusting block that is threaded into the threaded post.

[0020] Furthermore, the water collection assembly includes a positioning block fixed to the threaded post, and hinge blocks are evenly arranged on the surface of the positioning block and the side of the adjusting block; it also includes a positioning groove and a flow guide, the flow guide being located between adjacent positioning grooves and surrounding each other; one end of the positioning groove can also be rotatably engaged with the hinge block on the surface of the positioning block.

[0021] Furthermore, the water collection assembly also includes an adjusting rod, one end of which is rotatably engaged with a hinge block on the side of the adjusting block, and the other end of which is slidably engaged with the positioning groove; it also includes a collection pipe, which passes through the sealing block and one end of which extends out of the receiving column and connects to the separation area.

[0022] Furthermore, one end of the storage column is provided with a flared opening, and the guide member surrounds the end near the flared opening to form a rain collection port, which falls into the flared opening; the collection mechanism also includes fixing members, which are evenly distributed and connected to the end of the storage column away from the flared opening.

[0023] Furthermore, the slag scraping assembly includes a second motor, a slag scraping rod, and a slag scraping plate. The second motor is located on the upper part of the shell cover. One end of the slag scraping rod is engaged with the second motor, and the other end is located in the separation zone and connected to the slag scraping plates that are evenly arranged. The first shell also has a slag discharge port that is engaged with the slag scraping plate.

[0024] Furthermore, the filter tube has a filter cover located in the separation zone at one end near the scraper rod, the filter cover being close to and lower than the height of the scraper rod and the scraper plate along the first direction; the filter tube also has a partial adsorption section inside; the filter tube extends out of the first housing and one end is connected to the disinfection zone.

[0025] Furthermore, ultraviolet lamps are installed on the top surface of the disinfection zone and on the side away from the collection tube; reverse osmosis membrane filters are evenly arranged in the filtration zone, with one end of the reverse osmosis membrane filter connected to the disinfection zone and the other end connected to the detection zone; a water quality sensor is also installed in the detection zone; the purification mechanism also includes a connecting pipe, with one end of the connecting pipe connected to the detection zone and the other end connected to the third housing.

[0026] A method of use, applied to the above-mentioned rainwater harvesting and reuse device, includes the following steps:

[0027] S1. Installation of the collection mechanism: The collection column is installed on the roof surface using fasteners.

[0028] S2, Rainwater collection: Through the cooperation of the telescopic component and the water collection component, the threaded column moves to unfold the guide to collect water;

[0029] S3, Water pretreatment: The rainwater collected in S2 flows into the separation zone through the collection pipe and is treated by both the sludge scraping assembly and the filter pipe.

[0030] S4 Intelligent purification: The water body treated in S3 is transported to the second shell through the filter pipe, and then circulated and purified through the disinfection zone, filtration zone and detection zone until the water quality reaches the preset standard.

[0031] S5. Water storage: The qualified water in S4 is transported to the third shell through a connecting pipe, and the water level in the third shell is sensed by a liquid level sensor for real-time water replenishment.

[0032] S6. Water reuse: The water stored in the third shell in S5 is supplied to the main circulation pipe and the branch circulation pipe via a liquid supply pump.

[0033] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0034] (i) The collection mechanism in this device directly installs the collection column on the roof surface structure layer through the fasteners, without penetrating the roof waterproof layer and insulation layer, thus avoiding the risk of leakage. At the same time, the device adopts a retractable water collection component, and the guide component can be completely stored in the collection column when there is no rainfall, which reduces the additional load on the roof from the long-term external device. After unfolding, the water collection component achieves stable support through linkage, ensuring the safety and functionality of the building.

[0035] (ii) This device directly transports rainwater to the separation zone of the pretreatment unit through the collection pipe, and achieves efficient solid-liquid separation by combining the scraping component and the filter pipe. After the pretreatment, the rainwater is further treated by the purification unit and tested to meet the standards. Then, it enters the water storage unit through the connecting pipe and finally is accurately transported to the water use points such as greening and flushing through the circulation main and branch pipes of the output unit. It can be seamlessly connected with the miscellaneous water pipe network inside the building, realizing the formation of a closed loop circulation of rainwater inside the building, which significantly reduces the risk of blockage of the building's water supply and drainage branch pipes.

[0036] (III) The purification mechanism of this device ensures the stability and safety of the effluent water quality through a multi-stage purification and circulation treatment mechanism using ultraviolet lamp disinfection, reverse osmosis membrane filter, water quality sensor, and reflux pump. At the same time, the water storage mechanism can heat or cool as needed, avoiding problems such as soil compaction and clogging of sanitary ware caused by unsuitable water quality or temperature. Furthermore, the device can achieve full-process automated control by a controller, reducing the frequency of manual maintenance, improving the reliability and economy of water resource recycling, and thus reducing the operation and maintenance costs of the building throughout its entire life cycle. Attached Figure Description

[0037] Figure 1 A schematic diagram of the overall structure of a rainwater harvesting and reuse device according to an embodiment of the present invention is shown.

[0038] Figure 2 This diagram illustrates a partial structure of the collection mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention. Figure I .

[0039] Figure 3 This diagram illustrates a partial structure of the collection mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention. Figure II .

[0040] Figure 4 This diagram illustrates a partial structure of the collection mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention. Figure III .

[0041] Figure 5 This diagram illustrates a partial structure of the collection mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention. Figure IV .

[0042] Figure 6 This diagram illustrates a partial structure of the collection mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention. Figure V .

[0043] Figure 7 A schematic diagram of the pretreatment mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention is shown.

[0044] Figure 8 A schematic diagram of the purification mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention is shown.

[0045] Figure 9 The diagram shows a schematic representation of the water storage mechanism and output mechanism of a rainwater harvesting and reuse device according to an embodiment of the present invention.

[0046] In the attached diagram, the following components are labeled: 1. Collection mechanism; 11. Receiving column; 111. Trumpet mouth; 12. Telescopic assembly; 121. Cylinder; 122. Piston rod; 123. Mounting block; 124. First motor; 125. Sealing block; 126. Threaded column; 127. Adjusting block; 13. Water collection assembly; 131. Positioning block; 132. Hinge block; 133. Positioning groove; 134. Flow guide; 135. Adjusting rod; 136. Collection pipe; 137. Rainwater collection port; 14. Fixing component; 2. Pretreatment mechanism; 21. First shell; 211. Separation zone; 212. Sludge collection zone; 213. Slag discharge port; 22. Shell cover; 23. 1. Sludge scraping assembly; 231. Second motor; 232. Sludge scraping rod; 233. Sludge scraping plate; 24. Filter tube; 241. Filter cover; 242. Adsorption section; 25. Sludge discharge valve; 3. Purification mechanism; 31. Second housing; 311. Disinfection zone; 312. Filtration zone; 313. Detection zone; 32. Return pump; 33. Ultraviolet lamp; 34. Reverse osmosis membrane filter element; 35. Water quality sensor; 36. Connecting pipe; 4. Water storage mechanism; 41. Third housing; 42. Heating element; 43. Cooling element; 44. Liquid level sensor; 5. Output mechanism; 51. Liquid supply pump; 52. Main circulation pipe; 53. Branch circulation pipe. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the following detailed description of a rainwater harvesting and reuse device and its usage method, in conjunction with the accompanying drawings and specific embodiments, is provided. The advantages and features of this invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the purpose of the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0048] Please see Figures 1 to 6 The rainwater harvesting and reuse device of this embodiment includes:

[0049] A collection mechanism 1 is used to collect rainwater. The collection mechanism 1 includes a receiving column 11, a telescopic component 12, and a water collection component 13. The telescopic component 12 is partially disposed inside the receiving column 11 and acts on the water collection component 13. Rainwater is collected through the cooperation of the telescopic component 12 and the water collection component 13.

[0050] Specifically, the telescopic assembly 12 includes a cylinder 121, a piston rod 122, a mounting block 123, and a first motor 124 located within the storage column 11. In this embodiment, the storage column 11 is placed vertically perpendicular to the roof, and the cylinder 121 is located at the bottom of the storage column 11. One end of the piston rod 122 is connected to the cylinder 121, and the other end of the piston rod 122 is connected to the mounting block 123 located above the cylinder 121. The first motor 124 is connected to the mounting block 123 and is located on the side of the mounting block 123 away from the piston rod 122. The cylinder 121 drives the extension and retraction of the piston rod 122, thereby causing the mounting block 123 and the first motor 124 connected thereto to move axially up and down within the storage column 11.

[0051] Furthermore, the telescopic assembly 12 also includes a sealing block 125 and a threaded post 126. The sealing block 125 is movably disposed within the receiving post 11 and located on the side of the first motor 124 away from the mounting block 123. The threaded post 126 passes through and engages with the sealing block 125, with one end connected to the first motor 124. Preferably, the threaded post 126 is configured to be rotatable relative to the sealing block 125, and when the threaded post 126 moves up and down, it can synchronously drive the sealing block 125 to move up and down within the receiving post 11. The telescopic assembly 12 also includes an adjusting block 127 threadedly engaged with the threaded post 126, and the adjusting block 127 is located above the sealing block 125. When the first motor 124 starts, it drives the threaded post 126 to rotate. Since the adjusting block 127 is threadedly engaged with the threaded post 126, the adjusting block 127 can move up and down relative to the threaded post 126. By setting the length of the threaded section of the threaded post 126, the travel of the adjusting block 127 is limited, while preventing the adjusting block 127 from disengaging from the threaded post 126. Simultaneously, the sealing block 125 provides a certain seal inside the storage column 11, preventing rainwater or dust from entering the first motor 124 and the cylinder 121 at the bottom of the storage column 11, thus providing protection.

[0052] Furthermore, the water collection assembly 13 includes a positioning block 131 fixed to the threaded post 126. The positioning block 131 is located between the sealing block 125 and the adjusting block 127, and moves with the movement of the threaded post 126. Preferably, the end face area of ​​the positioning block 131 is smaller than the end face area of ​​the receiving post 11, that is, the positioning block 131 can move up and down with the threaded post 126 and can freely enter and exit the receiving post 11. Hinge blocks 132 are evenly arranged on the upper surface of the positioning block 131 and the side of the adjusting block 127. The water collection assembly 13 also includes a positioning groove 133 and a flow guide 134, the flow guide 134 being located between adjacent positioning grooves 133 and mutually enclosing each other. One end of the positioning groove 133 can also be rotatably fitted to the hinge block 132 on the surface of the positioning block 131. That is, one end of the positioning groove 133 is rotatably connected to the hinge block 132 on the upper surface of the positioning block 131 through a connecting member such as a pin, so that the positioning groove 133 can be rotated around the hinge point at a certain angle.

[0053] Furthermore, the water collection assembly 13 also includes an adjusting rod 135. One end of the adjusting rod 135 is rotatably engaged with the hinge block 132 on the side of the adjusting block 127, and the other end of the adjusting rod 135 is slidably engaged with the positioning groove 133. That is, a strip-shaped slide is formed along the length of the positioning groove 133, and the end of the adjusting rod 135 away from the adjusting block 127 has a structure such as a ball or a slider, which can be slidably embedded in the strip-shaped slide, thereby realizing the sliding engagement between the adjusting rod 135 and the positioning groove 133. When the adjusting block 127 moves upward on the threaded post 126, one end of the adjusting rod 135 rises with the adjusting block 127, while the other end slides within the strip-shaped slide of the positioning groove 133. This pulls the positioning groove 133 relative to the positioning block 131 to contract, reducing the angle between the positioning groove 133 and the positioning block 131. After contraction, the piston rod 122 is contracted by the action of the cylinder 121, causing the mounting block 123, the first motor 124, the threaded post 126, and the connected positioning block 131, adjusting block 127, the contracted positioning groove 133, the guide member 134, and the adjusting rod 135 to move downward as a whole. This allows the guide member 134 to gradually be stored in the storage column 11, reducing space occupation during non-rainfall periods. When rainwater needs to be collected, the cylinder 121 drives the piston rod 122 to extend, moving the positioning block 131, the adjusting block 127, the retracted positioning groove 133, the guide member 134, and the adjusting rod 135 upwards and out of the receiving column 11. Then, the first motor 124 drives the threaded column 126 to rotate, causing the adjusting block 127 to move downwards relative to the threaded column 126. At this time, one end of the adjusting rod 135 descends with the adjusting block 127, and the other end slides in the strip-shaped slide of the positioning groove 133 and pushes the positioning groove 133 to unfold, causing the positioning groove 133 to flip outwards around the hinge block 132 on the positioning block 131, increasing the angle between the positioning groove 133 and the positioning block 131, thereby causing the guide member 134 between adjacent positioning grooves 133 to unfold. In this embodiment, a rectangular upper opening is formed to receive and collect rainwater. Preferably, the guide member 134 may be made of a flexible and waterproof material, such as rubber or waterproof fabric, to ensure that it can tightly enclose and form an effective water collection space when unfolded, preventing rainwater leakage. The guide members 134 between adjacent positioning grooves 133 unfold or retract when the positioning grooves 133 are flipped, thereby adjusting the rainwater collection area.

[0054] Furthermore, one end of the receiving column 11 is provided with a funnel-shaped opening 111. After the guide member 134 is unfolded, it forms a rain collection port 137 near the funnel-shaped opening 111, and the rain collection port 137 falls inside the funnel-shaped opening 111. That is, when the guide member 134 is fully unfolded, the rain collection port 137 enclosed at its bottom faces directly above the funnel-shaped opening 111, so that the rainwater collected by the guide member 134 can flow smoothly into the funnel-shaped opening 111 through the rain collection port 137, preventing rainwater from overflowing.

[0055] Furthermore, the water collection assembly 13 also includes a collection pipe 136, which passes through the sealing block 125. Specifically, one end of the collection pipe 136 is fixedly connected to the sealing block 125. Preferably, the port of the collection pipe 136 is flush with the surface of the sealing block 125, and a filter screen can be installed at the port to improve the filtration effect and prevent larger impurities from entering the pipe and causing blockage. The other end of the collection pipe 136 passes through the side wall of the receiving column 11 and connects to the separation zone 211 of the pretreatment mechanism 2. It is used to transport the collected rainwater to the pretreatment mechanism 2 for treatment. Preferably, the connection between the collection pipe 136 and the separation zone 211 is tangential, so that the rainwater enters the separation zone 211 tangentially, forming a vortex. Centrifugal force is used to accelerate the separation of impurities and water in the rainwater, thereby improving the pretreatment efficiency.

[0056] Furthermore, the collection mechanism 1 also includes fixing members 14, which are evenly distributed and connected to the end of the storage column 11 away from the flared opening 111, i.e., the bottom of the storage column 11. The fixing members 14 allow for the secure installation of the storage column 11 onto the roof surface structure layer using expansion bolts or pre-embedded bolts. This ensures the collection mechanism 1 remains stable under adverse weather conditions such as wind and rain, without damaging the original waterproofing and insulation structure of the roof, thus preventing the device from falling off or being damaged due to insecure installation.

[0057] Please continue reading. Figure 1 and Figure 7The device includes a pretreatment mechanism 2 for pretreating collected rainwater. The pretreatment mechanism 2 includes a first housing 21, a cover 22, and a scraper assembly 23. The first housing 21 includes a communicating separation zone 211 and a sludge collection zone 212. The scraper assembly 23 is fitted to the cover 22 and partially located within the separation zone 211. Specifically, the scraper assembly 23 includes a second motor 231, a scraper rod 232, and a scraper plate 233. The second motor 231 is located on the upper part of the cover 22, preferably at the center of the cover 22. One end of the scraper rod 232 is fitted to the second motor 231, and the other end is located in the separation zone 211 and connected to evenly distributed scraper plates 233, thereby ensuring that the scraper plates 233 can fully cover the water surface of the separation zone 211 during operation. The first housing 21 also has a discharge port 213 fitted to the scraper plate 233.

[0058] When rainwater enters the separation zone 211 tangentially through the collection pipe 136, it forms a swirling flow. Under centrifugal force, denser particles such as mud and sand in the rainwater are thrown towards the inner wall of the separation zone 211 and gradually settle to the bottom mud collection zone 212 under gravity. Meanwhile, less dense floating matter accumulates on the liquid surface of the separation zone 211. At this time, the second motor 231 is activated, driving the scraper rod 232 to rotate. The scraper rod 232 drives the scraper plate 233 to move in a circular motion along the liquid surface of the separation zone 211. The bottom edge of the scraper plate 233 contacts the liquid surface, scraping the floating matter onto the discharge port 213 pre-set on the inner wall of the separation zone 211. Preferably, the discharge port 213 can be located on the side wall of the separation zone 211 near the liquid surface and equipped with a valve. When a certain amount of floating matter accumulates, the valve can be opened to discharge it, achieving preliminary solid-liquid separation and impurity removal of the rainwater, effectively reducing the burden of subsequent purification treatment.

[0059] Furthermore, the pretreatment mechanism 2 also includes a filter tube 24 partially disposed in the separation zone 211 and cooperating with the scraper assembly 23. The filter tube 24 has a filter cover 241 located in the separation zone 211 at one end near the scraper rod 232. The filter cover 241 is close to and lower than the height of the scraper rod 232 and the scraper plate 233 along a first direction, thereby ensuring that the water filtered by the filter cover 241 does not contain floating matter, and ensuring that the rainwater entering the filter tube 24 is the relatively clean upper layer of water after cyclone separation. The filter cover 241 has multiple uniformly distributed filter holes, which can effectively intercept residual fine suspended particles in the water. In this embodiment, the first direction is the direction perpendicular to the surface of the cover 22, which is also the length direction of the scraper rod 232.

[0060] Furthermore, the filter tube 24 is also partially provided with an adsorption section 242. The filter tube 24 extends out of the first housing 21 and one end is also connected to the disinfection area 311 of the purification mechanism 3, thereby transporting the pretreated rainwater to the purification mechanism 3 for deep purification.

[0061] Furthermore, the pretreatment mechanism 2 also includes a sludge discharge valve 25 located at the bottom of the sludge collection area 212. By using the sludge discharge valve 25, when the sludge and impurities in the sludge collection area 212 accumulate to a certain amount, the valve can be opened periodically to discharge them, preventing long-term accumulation of impurities from affecting the separation effect. During the sludge discharge process, the sludge discharge speed can be adjusted by controlling the valve opening, ensuring that water loss from the first housing 21 is reduced while discharging impurities.

[0062] Please continue reading. Figure 1 and Figure 8 The device further includes a purification mechanism 3 for purifying the pretreated water. The purification mechanism 3 includes a second housing 31, within which a disinfection zone 311, a filtration zone 312, and a detection zone 313 are sequentially arranged. Ultraviolet lamps 33 are installed on the top surface of the disinfection zone 311 and on the side away from the collection pipe 136. The ultraviolet light emitted by the lamps 33 disinfects the rainwater entering the disinfection zone 311 by irradiating it. The strong bactericidal effect of ultraviolet light destroys the DNA structure of bacteria, viruses, and other microorganisms in the rainwater, rendering them inactive, thereby effectively killing pathogenic microorganisms in the water and ensuring the safety of subsequent water use. The irradiation time and intensity of the ultraviolet lamps 33 can be adjusted according to the actual amount of water to be treated and the water quality.

[0063] Furthermore, reverse osmosis membrane filter elements 34 are uniformly arranged in the filtration zone 312. One end of each reverse osmosis membrane filter element 34 is connected to the disinfection zone 311, and the other end is connected to the detection zone 313. Solenoid valves can be configured at both ends of each reverse osmosis membrane filter element 34. The opening and closing of the solenoid valves controls the flow of water, facilitating adjustment of the filtration flux according to actual needs. Simultaneously, the corresponding solenoid valves can be closed during maintenance or replacement of the reverse osmosis membrane filter element 34 to prevent water leakage. The reverse osmosis membrane filter element 34 preferably uses a spiral wound composite reverse osmosis membrane, which has a high desalination rate and water flux, effectively removing residual soluble salts, organic matter, heavy metal ions, and other trace pollutants from rainwater. In addition, the reverse osmosis membrane filter element 34 can be configured to adjust its filtration precision as needed to adapt to different water treatment volumes and water quality purification requirements.

[0064] Furthermore, a water quality sensor 35 is installed in the detection zone 313 to monitor key water quality indicators such as pH, turbidity, and residual chlorine content of the purified rainwater in real time. The purification mechanism 3 also includes a return pump 32, one end of which is connected to the disinfection zone 311 and the other end to the detection zone 313. When the water quality sensor 35 detects that the water quality indicators in the detection zone 313 do not meet the preset standards, the return pump 32 automatically starts, pumping the substandard water from the detection zone 313 back to the disinfection zone 311 for secondary treatment until the water quality meets the standards before entering the subsequent water supply stage, ensuring stable and reliable effluent water quality. The purification mechanism 3 also includes a connecting pipe 36, one end of which is connected to the detection zone 313 and the other end is connected to the third housing 41 of the water storage mechanism 4, that is, to transport the purified and qualified rainwater to the water storage mechanism 4 for storage. Preferably, a solenoid valve can be configured on the connecting pipe 36 to control the flow of water. When the water quality in the detection zone 313 meets the standard, the solenoid valve automatically opens, allowing purified water to be introduced into the water storage mechanism 4 through the connecting pipe 36. If the water quality does not meet the standard or the water storage mechanism 4 is full, the solenoid valve closes, and the connecting pipe 36 is blocked to prevent unqualified water from entering or water from overflowing.

[0065] Please continue reading. Figure 1 and Figure 9 The device further includes a water storage mechanism 4 for storing water purified by the purification mechanism 3. The water storage mechanism 4 includes a third housing 41, within which a heating element 42, a cooling element 43, and a liquid level sensor 44 are disposed. The heating element 42 can be an electric heating rod, vertically positioned at the bottom of the third housing 41, used to heat the stored water in low-temperature environments to a suitable temperature range. For example, it can prevent cold water from stimulating plant roots during landscaping irrigation, or improve user comfort during rinsing. The cooling element 43 can be a semiconductor cooling chip, vertically positioned at the bottom of the third housing 41, used to cool rainwater during hot seasons, preventing bacterial growth or odors due to excessively high temperatures, especially suitable for scenarios requiring cooling water. The liquid level sensor 44 is installed on the upper inner wall of the third housing 41 to monitor the water level in real time. When the water level reaches a preset upper limit, it sends a signal to close the solenoid valve at the connecting pipe 36, stopping water intake. When the water level is lower than the preset lower limit, a feedback signal can be sent to open the solenoid valve at the connecting pipe 36 to provide water inlet and ensure sufficient water storage.

[0066] Please continue reading. Figure 1 and Figure 9The device further includes an output mechanism 5 for outputting and reusing the water stored in the water storage mechanism 4. The output mechanism 5 includes a supply pump 51, one end of which is connected to the third housing 41, and the other end is connected to a main circulation pipe 52. A circulation branch pipe 53 is also connected to the main circulation pipe 52. The number of circulation branch pipes 53 can be set in multiple groups according to actual water demand, each leading to different water points, such as rooftop greening irrigation sprinklers, ground cleaning faucets, and landscape water replenishment pipes. Preferably, a solenoid valve is installed on the main circulation pipe 52 and each of the circulation branch pipes 53, allowing independent control of the flow according to the needs of different water points, achieving water supply by area and time period.

[0067] Specifically, in this device, the cylinder 121, the first motor 124, the second motor 231, the sludge discharge valve 25, the ultraviolet lamp 33, the reverse osmosis membrane filter element 34, the water quality sensor 35, the heating element 42, the cooling element 43, the liquid level sensor 44, the liquid supply pump 51, and each pipe equipped with a solenoid valve are all electrically connected to the controller. The controller, as a known technical component, achieves automated operation of the entire rainwater collection and reuse device through centralized control and the sequential arrangement of the collection mechanism 1, the pretreatment mechanism 2, the purification mechanism 3, the water storage mechanism 4, and the output mechanism 5, thereby reducing manual intervention and improving system operating efficiency and stability.

[0068] Please refer to the following: Figure 1 The method of use in this embodiment, applied to the above-mentioned rainwater harvesting and reuse device, includes the following steps:

[0069] S1. Installation of the collection mechanism 1: The collection column 11 is installed on the roof surface by means of the fastener 14.

[0070] The fixing member 14 keeps the plurality of storage columns 11 in a vertical position, which is installed on the roof surface to avoid the subsequent deployment of the guide member 134 and the rainwater collection effect due to tilting. Preferably, waterproof sealant can be used to seal the area around the fixing member 14 and the bottom of the storage column 11 in contact with the roof to prevent rainwater from leaking out from the installation gaps.

[0071] S2, Rainwater collection, through the cooperation of telescopic component 12 and water collection component 13, the threaded column 126 moves to unfold the guide 134 to collect water.

[0072] Before rainfall or according to weather forecasts, the controller receives a start signal and activates the cylinder 121, driving the piston rod 122 to extend. This causes the positioning block 131, the adjusting block 127, the retracted positioning groove 133, the guide member 134, and the adjusting rod 135 to move upwards as a whole, pushing them out of the receiving column 11 to a preset height. Subsequently, the controller activates the first motor 124, driving the threaded column 126 to rotate, causing the adjusting block 127, which is threadedly connected to the threaded column 126, to move downwards along the threaded column 126. During the downward movement of the adjusting block 127, one end of the adjusting rod 135, which is hinged to it, descends synchronously. The other end of the adjusting rod 135 slides within the strip track on the positioning groove 133, generating an outward thrust on the positioning groove 133. This causes the positioning groove 133 to rotate outwards around the hinge block 132 on the positioning block 131, gradually increasing the angle between the positioning groove 133 and the positioning block 131. As each of the positioning slots 133 flips and unfolds, the guide member 134 between adjacent positioning slots 133 is gradually stretched and unfolded, eventually forming a preset rectangular upper opening. At this time, the rain collection port 137 falls exactly into the horn-shaped opening 111 at the top of the storage column 11, completing the preparation work before rainwater collection, so as to carry out rainwater collection.

[0073] S3. Water pretreatment: The rainwater collected in S2 flows into the separation zone 211 through the collection pipe 136 and undergoes dual treatment by the scraper assembly 23 and the filter pipe 24.

[0074] The extended guide member 134 collects rainwater. Under the converging effect of the guide member 134, the rainwater flows through the rain collection port 137 into the funnel-shaped opening 111, and then into the interior of the receiving column 11. It then passes through the collection pipe 136, which is installed through the sealing block 125. The filter screen at the port of the collection pipe 136 first performs preliminary filtration of the rainwater, intercepting larger impurities such as leaves and plastic waste. The filtered rainwater then enters the separation zone 211 of the first housing 21 of the pretreatment mechanism 2 tangentially through the collection pipe 136, forming a swirling flow within the separation zone 211. Under centrifugal force, denser sediment particles in the rainwater are thrown towards the inner wall of the separation zone 211 and settle along the inner wall to the bottom sediment collection zone 212, while less dense floating matter accumulates on the surface of the liquid in the separation zone 211. Simultaneously, the controller starts the second motor 231, driving the scraper rod 232 to move the scraper plate 233 in a circular motion along the liquid surface. The scraper plate 233 continuously scrapes the floating matter on the liquid surface toward the discharge port 213. When the floating matter accumulates to a certain amount, the controller opens the valve at the discharge port 213 to discharge the floating matter. After cyclone separation and scraping, the cleaner water in the upper layer of the separation zone 211 enters the filter tube 24 through the filter cover 241 at the end of the filter tube 24. The filter holes on the filter cover 241 further intercept fine suspended particles. When the water flows through the adsorption section 242 in the filter tube 24, the activated carbon and other adsorption materials adsorb the odor, some organic matter and heavy metal ions in the water. The pretreated water is then transported to the purification mechanism 3 through the filter tube 24.

[0075] S4 Intelligent purification: The water that has undergone dual treatment in S3 is transported to the second housing 31 through the filter pipe 24, and then circulated through the disinfection zone 311, the filtration zone 312 and the detection zone 313 in sequence to achieve purification until the water quality reaches the preset standard.

[0076] The pretreated water enters the disinfection zone 311 of the second housing 31 of the purification mechanism 3. Ultraviolet lamps 33 on the top and sides of the disinfection zone 311 are turned on to disinfect the water with ultraviolet light. The disinfected water then enters the filtration zone 312, where it passes through uniformly arranged reverse osmosis membrane filters 34. The reverse osmosis membrane deeply traps residual soluble salts, colloids, organic matter, and microorganisms in the water, further purifying the water quality. The purified water then enters the detection zone 313, where water quality sensors 35 monitor the pH value, turbidity, and residual chlorine content of the water in real time. If the water quality meets the standards, the controller opens the solenoid valve on the connecting pipe 36, and the water is transported to the water storage mechanism 4 through the connecting pipe 36. If the water quality does not meet the standard, the controller starts the return pump 32 to pump the substandard water back to the disinfection zone 311 for secondary treatment, and then through the filtration zone 312 and the detection zone 313 for sequential cyclic treatment until the water quality meets the standard before being transported to the water storage mechanism 4.

[0077] S5, Water storage: The qualified water in S4 is transported to the third shell 41 through the connecting pipe 36. The water level in the third shell 41 is sensed by the liquid level sensor 44 for real-time water replenishment.

[0078] The purified water entering the third housing 41 of the water storage mechanism 4 has its water level monitored in real time by the level sensor 44. When the water level is below a preset lower limit, the level sensor 44 sends a signal to the controller, which then controls the solenoid valve at the connecting pipe 36 to open and continue water intake. When the water level reaches a preset upper limit, the controller controls the solenoid valve at the connecting pipe 36 to close and stop water intake. Depending on the ambient temperature and water demand, the controller can activate the heating element 42 or the cooling element 43. In low-temperature environments, the heating element 42 heats the water to a suitable temperature to avoid stimulating plant roots during irrigation. In high-temperature seasons, the cooling element 43 cools the water to prevent bacterial growth or odor, ensuring the quality of the stored water.

[0079] S6. Water reuse: The water stored in the third shell 41 in S5 is supplied to the circulation main pipe 52 and circulation branch pipe 53 via the liquid supply pump 51.

[0080] When water is needed at various water points, the controller starts the supply pump 51 according to a preset program or user instruction, pumping the water in the water storage mechanism 4 into the circulation main pipe 52. Subsequently, according to the needs of different water points, the controller controls the solenoid valves on the circulation main pipe 52 and the corresponding circulation branch pipes 53 to open, and the water is transported through the circulation branch pipes 53 to water points such as rooftop greening irrigation sprinklers, ground cleaning water taps, and landscape water replenishment pipes, realizing the reuse of rainwater. During non-water use periods or when the water level in the water storage mechanism 4 is low, the supply pump 51 can also operate intermittently at low power, allowing the water to circulate within a small range in the circulation main pipe 52 and circulation branch pipes 53, preventing the water in the pipes from remaining stagnant for a long time, causing sedimentation or the growth of microorganisms.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A rainwater harvesting and reuse device, characterized in that, The device includes: The collection mechanism (1) includes a storage column (11), a telescopic component (12) and a water collection component (13). The telescopic component (12) is partially disposed inside the storage column (11) and acts on the water collection component (13). The pretreatment mechanism (2) includes a first housing (21), a cover (22), and a sludge scraper assembly (23). The housing (21) includes a connected separation zone (211) and a sludge collection zone (212). The sludge scraper assembly (23) is configured to cooperate with the cover (22) and is partially located within the separation zone (211). The pretreatment mechanism (23) also includes a filter tube (24) partially disposed in the separation zone (211) and configured to cooperate with the sludge scraper assembly (23). The purification mechanism (3) includes a second housing (31), in which a disinfection zone (311), a filtration zone (312), and a detection zone (313) are sequentially arranged; it also includes a reflux pump (32), one end of which is connected to the disinfection zone (311) and the other end of which is connected to the detection zone (313). The water storage mechanism (4) includes a third housing (41), and a heating element (42), a cooling element (43) and a liquid level sensor (44) are provided in the third housing (41). Output mechanism (5), the output mechanism (5) includes a liquid supply pump (51), one end of the liquid supply pump (51) is connected to the third housing (41), and the other end is connected to a circulation main pipe (52), and a circulation branch pipe (53) is also connected to the circulation main pipe (52). The collection mechanism (1), the pretreatment mechanism (2), the purification mechanism (3), the water storage mechanism (4), and the output mechanism (5) are arranged in sequence to realize rainwater collection and recycling.

2. The rainwater harvesting and reuse device as described in claim 1, characterized in that: The telescopic assembly (12) includes a cylinder (121), a piston rod (122), a mounting block (123), and a first motor (124) located in the storage column (11). One end of the piston rod (122) is connected to the cylinder (121), and the other end is connected to the mounting block (123). The first motor (124) is connected to the mounting block (123) and is located on the side of the mounting block (123) away from the piston rod (122).

3. The rainwater harvesting and reuse device as described in claim 2, characterized in that: The telescopic assembly (12) further includes a sealing block (125) and a threaded post (126). The sealing block (125) is movably disposed within the receiving post (11) and located on the side of the first motor (124) away from the mounting block (123). The threaded post (126) passes through and engages with the sealing block (125) and is connected at one end to the first motor (124). The telescopic assembly (12) further includes an adjusting block (127) threadedly engaged with the threaded post (126).

4. A rainwater harvesting and reuse device as described in claim 3, characterized in that: The water collection assembly (13) includes a positioning block (131) fixed to the threaded post (126), and hinge blocks (132) are evenly provided on the surface of the positioning block (131) and the side of the adjusting block (127); it also includes a positioning groove (133) and a flow guide (134), the flow guide (134) being located between adjacent positioning grooves (133) and surrounding each other; one end of the positioning groove (133) can also be rotatably fitted to the hinge block (132) on the surface of the positioning block (131).

5. A rainwater harvesting and reuse device as described in claim 4, characterized in that: The water collection assembly (13) also includes an adjusting rod (135), one end of which is rotatably engaged with the hinge block (132) on the side of the adjusting block (127), and the other end is slidably engaged with the positioning groove (133); it also includes a collection pipe (136), which passes through the sealing block (125) and one end passes through the storage column (11) and connects to the separation area (211).

6. A rainwater harvesting and reuse device as described in claim 5, characterized in that: The storage column (11) is provided with a flared mouth (111) at one end, and the guide (134) forms a rain collection port (137) at the end near the flared mouth (111), and the rain collection port (137) falls into the flared mouth (111); the collection mechanism (1) also includes a fixing member (14), which is evenly distributed and connected to the end of the storage column (11) away from the flared mouth (111).

7. A rainwater harvesting and reuse device as described in claim 1, characterized in that: The slag scraping assembly (23) includes a second motor (231), a slag scraping rod (232), and a slag scraping plate (233). The second motor (231) is located on the upper part of the shell cover (22). One end of the slag scraping rod (232) is engaged with the second motor (231), and the other end is located in the separation zone (211) and connected to the slag scraping plate (233) which is evenly arranged. The first shell (21) is also provided with a slag discharge port (213) that is engaged with the slag scraping plate (233).

8. A rainwater harvesting and reuse device as described in claim 7, characterized in that: The filter tube (24) has a filter cover (241) located in the separation zone (211) at one end near the scraper rod (232). The filter cover (241) is close to and lower than the height of the scraper rod (232) and the scraper plate (233) along the first direction. An adsorption section (242) is also partially provided inside the filter tube (24). The filter tube (24) passes through the first housing (21) and one end is also connected to the disinfection zone (311).

9. A rainwater harvesting and reuse device as described in claim 5, characterized in that: Ultraviolet lamps (33) are provided on the top surface of the disinfection zone (311) and on the side away from the collection tube (136); a reverse osmosis membrane filter element (34) is uniformly provided in the filtration zone (312), one end of the reverse osmosis membrane filter element (34) is connected to the disinfection zone (311), and the other end is connected to the detection zone (313); a water quality sensor (35) is also provided in the detection zone (313); the purification mechanism (3) also includes a connecting pipe (36), one end of the connecting pipe (36) is connected to the detection zone (313), and the other end is connected to the third housing (41).

10. A method of use, applied to a rainwater harvesting and reuse device as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Installation of the collection mechanism (1): The collection column (11) is installed on the roof surface by means of fastener (14); S2, rainwater collection, through the cooperation of the telescopic component (12) and the water collection component (13), the threaded column (126) moves to unfold the guide (134) to collect water; S3, water pretreatment: the rainwater collected in S2 flows into the separation zone (211) through the collection pipe (136) and is treated by the scraper assembly (23) and the filter pipe (24); S4, intelligent purification, the water body treated in S3 is transported to the second shell (31) through the filter pipe (24), and then circulated through the disinfection zone (311), the filtration zone (312) and the detection zone (313) in sequence until the water quality reaches the preset standard; S5, water storage, the qualified water in S4 is transported to the third shell (41) through the connecting pipe (36), and the water level in the third shell (41) is sensed by the liquid level sensor (44) for real-time water replenishment; S6. Water reuse: The water stored in the third shell (41) in S5 is supplied to the circulation main pipe (52) and circulation branch pipe (53) via the liquid supply pump (51).

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