A roof greening rainwater collecting device

Abstract

The utility model discloses a roof greening rainwater collection device, including water collecting tank, sealing cover, drainage casing, water inlet casing, thread cover, filter casing and dredging mechanism, wherein, the one end of multiple support arms is fixedly connected in the inner wall of the other end of water inlet casing in the form of circumferential array, and the support head is fixedly connected in the other end of multiple support arms, and the driving arrangement is installed at the top of support head, and the output of driving arrangement penetrates support head, and is fixedly connected with the one end of driving rod, and the smashing subassembly is installed on driving rod, and the smashing subassembly is located in the inside of filter casing. Therefore, the water level sensor cooperates with the water level regulation and control of the drain pipe and the overflow tank, the device is blocked and is automatically started dredging through the sensor monitoring, does not need manual cleaning, and the problems of lacking automatic dredging mechanism in the prior art, increasing cost and affecting efficiency caused by manual cleaning are solved.

Description

Technical Field

[0001] This utility model relates to the field of rainwater harvesting technology, and in particular to a rainwater harvesting device for rooftop greening. Background Technology

[0002] Currently, rooftop greening rainwater harvesting devices have been applied to some extent in urban water resource utilization and ecological environment improvement. These devices usually include a collection tank for storing rainwater, and filter components are installed along the path of the rainwater entering the collection tank to intercept impurities such as leaves and mud in the rainwater. Some devices are also equipped with corresponding water inlet and drainage structures so that rainwater can flow smoothly into the collection tank and be discharged when needed, realizing the collection and reuse of rooftop rainwater and providing irrigation water for rooftop greening plants. However, the filter components in existing rooftop greening rainwater harvesting devices are prone to clogging due to the accumulation of impurities during long-term use. Most devices lack an automatic unclogging mechanism for the filter components. When clogging occurs, manual cleaning and maintenance are required, which not only increases labor costs but may also affect rainwater harvesting efficiency or even cause the device to malfunction if cleaning is not done in time. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose a rooftop greening rainwater collection device. It uses a photoelectric sensor to monitor the water level changes in the inlet housing in real time. When the filter housing is clogged and water accumulates and submerges the sensor, the controller automatically starts the drive device. The drive rod drives the crushing component to operate. The crushing teeth of the first fixed sleeve plate break up the clogging impurities. The second fixed sleeve plate drives the scraper to scrape the inner wall of the filter housing through the connecting arm. With the drainage gap design between the filter housing and the drainage housing, the blockage is automatically cleared and the drainage is unobstructed. This solves the problem of manual cleaning of filter components after clogging in the prior art without manual intervention.

[0005] To achieve the above objectives, this utility model proposes a rooftop greening rainwater collection device, comprising a water collection tank, a sealing cover, a drainage shell, a water inlet shell, a threaded sleeve, a filter shell, and a dredging mechanism. The sealing cover is snapped onto the side wall of the water collection tank. One end of the drainage shell is fixedly connected to the top of the water collection tank. One end of the water inlet shell is fixedly connected to the other end of the drainage shell. The threaded sleeve is fixedly connected to the junction of the inner walls of the drainage shell and the water inlet shell. One end of the filter shell is threadedly connected to the inner wall of the threaded sleeve. The dredging mechanism includes support arms, a support head, a drive device, a drive rod, and a pulverizing assembly. One end of multiple support arms is fixedly connected in a circumferential array to the inner wall of the other end of the water inlet shell. The support head is fixedly connected to the other end of the multiple support arms. The drive device is mounted on the top of the support head, and its output end passes through the support head and is fixedly connected to one end of the drive rod. The pulverizing assembly is mounted on the drive rod and is located inside the filter shell.

[0006] This utility model discloses a rooftop greening rainwater collection device. Rainwater flows in through the inlet housing, and the flow rate is increased by the Venturi effect of the conical structure. After being filtered by the filter housing, it flows into the collection tank through the gap between the filter housing and the drainage housing. The sealed cover facilitates cleaning of the collection tank. When the filter housing becomes clogged and the water volume in the inlet housing submerges the photoelectric sensor, the controller starts the drive device, which drives the crushing teeth of the crushing component to crush impurities and the scraper to scrape the inner wall to clear the blockage. After the accumulated water is drained, the drive device stops. The water level sensor, in conjunction with the drainage pipe and overflow tank, regulates the water level. This device detects blockages through sensors and automatically starts clearing, eliminating the need for manual cleaning. This solves the problems of existing devices in the background technology that lack an automatic clearing mechanism and require manual cleaning, leading to increased costs and reduced efficiency.

[0007] In addition, the rooftop greening rainwater collection device proposed above according to this utility model may also have the following additional technical features: Specifically, the pulverizing assembly includes a first fixed sleeve plate, pulverizing teeth, a second fixed sleeve plate, a connecting arm, and a scraper. A plurality of first fixed sleeve plates and a plurality of second fixed sleeve plates are alternately fixedly sleeved on the outer wall of the drive rod. A plurality of pulverizing teeth are fixedly connected to the outer wall of the first fixed sleeve plate in a circumferential array. One end of the connecting arm is fixedly connected to the outer wall of the second fixed sleeve plate. One side of the scraper is fixedly connected to the other end of the connecting arm, and the other side of the scraper abuts against the inner wall of the filter housing.

[0008] Specifically, it also includes a control component, which includes a controller, a water level sensor, and a photoelectric sensor. The controller is installed on the top of the water collection tank, the water level sensor is installed on the inner wall of the water collection tank, and the photoelectric sensor is installed on the inner wall of the water inlet housing.

[0009] Specifically, a drainage pipe is fixedly connected to the bottom of one side of the water collection tank, and an overflow trough is provided on the top of the other side of the water collection tank.

[0010] Specifically, both the drainage shell and the water inlet shell are conical structures, and the opening at the intersection of the drainage shell and the water inlet shell is smaller than the opening at the other end.

[0011] Specifically, the drive device, the water level sensor, and the photoelectric sensor are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0012] Specifically, there is a gap between the outer wall of the filter housing and the inner wall of the drainage housing for drainage.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the rooftop greening rainwater collection device of this utility model; Figure 2 This is a schematic diagram of the internal structure of a water collection tank according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the drainage shell according to an embodiment of the present invention. Figure 4 Base of one embodiment of this utility model Figure 3 A magnified structural diagram of part A in the middle.

[0015] As shown in the figure: 1. Water collection tank; 11. Drainage pipe; 12. Overflow trough; 2. Sealing cover; 3. Drainage housing; 4. Inlet housing; 5. Threaded sleeve; 6. Filter housing; 7. Unblocking mechanism; 71. Support arm; 72. Support head; 73. Drive device; 74. Drive rod; 75. Crushing assembly; 751. First fixed sleeve; 752. Crushing teeth; 753. Second fixed sleeve; 754. Connecting arm; 755. Scraper; 8. Control components; 81. Controller; 82. Water level sensor; 83. Photoelectric sensor. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0017] The rooftop greening rainwater collection device of this utility model embodiment will be described below with reference to the accompanying drawings.

[0018] like Figures 1-4 As shown, the rooftop greening rainwater collection device of this utility model embodiment may include a water collection tank 1, a sealing cover plate 2, a drainage shell 3, a water inlet shell 4, a threaded sleeve 5, a filter shell 6, and a dredging mechanism 7.

[0019] Among them, the sealing cover 2 is snapped onto the side wall of the water collection tank 1, one end of the drain housing 3 is fixedly connected to the top of the water collection tank 1, one end of the inlet housing 4 is fixedly connected to the other end of the drain housing 3, the threaded sleeve 5 is fixedly connected to the junction of the inner walls of the drain housing 3 and the inlet housing 4, and one end of the filter housing 6 is threadedly connected to the inner wall of the threaded sleeve 5.

[0020] Furthermore, both the drainage shell 3 and the water inlet shell 4 are conical structures, and the opening at the intersection of the drainage shell 3 and the water inlet shell 4 is smaller than the opening at the other end.

[0021] It should be noted that the sealing cover 2 described in this embodiment is snapped onto the side wall of the water collection tank 1. Its edge is provided with a stepped protrusion that matches the groove on the side wall of the water collection tank 1. A weather-resistant silicone sealing gasket is embedded in the protrusion. The snap-fit ​​structure allows for quick and easy manual installation and removal, and the opening and closing can be completed by applying appropriate force, which is convenient for regular cleaning of the sediment inside the water collection tank 1. At the same time, the sealing gasket ensures that there is no leakage at the joint. The cover is made of modified PP. The material is of moderate thickness, combining UV resistance and lightweight properties. The bottom of the drainage housing 3 is connected to the top of the water collection tank 1 via a flange bolt with a pre-set annular boss. A nitrile rubber gasket is placed between the flange faces to ensure sufficient connection strength and prevent rainwater from seeping into the water collection tank 1 along the joint. The rear end of the water inlet housing 4 is fixed to the top of the drainage housing 3 using a tenon and mortise structure with epoxy resin bonding. The outside of the joint is wrapped with a stainless steel clamp to enhance wind load and vibration resistance, adapting to the strong airflow environment of the roof. The threaded sleeve 5 is made of brass and is fixed to the junction of the inner walls of the drainage housing 3 and the water inlet housing 4 by laser welding. Its inner wall is machined with fine trapezoidal threads and coated with polytetrafluoroethylene sealant. The top outer wall of the filter housing 6 is machined with matching threads, providing sufficient engagement length to ensure convenient disassembly and assembly (manually rotating a few turns is sufficient for installation and removal) and to prevent rainwater leakage from the joint through thread sealing. The filter housing 6 is made of 304 stainless steel. Made of stainless steel, the mesh size is adapted to intercept common roof rainwater debris such as leaves and pebbles. Both the drainage shell 3 and the water inlet shell 4 are conical structures with appropriate taper. The opening at the junction is smaller than the bottom opening of the drainage shell 3 and the front opening of the water inlet shell 4. This structural design utilizes the Venturi effect to significantly increase the flow velocity of rainwater when it flows through the junction. This not only enhances the scouring force on light impurities and reduces deposition at the bottom of the shell, but also guides the water flow smoothly into the collection tank 1 through the gradually expanding drainage shell 3, avoiding splashing and energy loss caused by turbulence. At the same time, the conical inner wall is surface treated to reduce roughness and reduce the probability of impurity adhesion, further optimizing rainwater collection efficiency.

[0022] The unblocking mechanism 7 includes a support arm 71, a support head 72, a drive device 73, a drive rod 74, and a crushing assembly 75.

[0023] Among them, one end of multiple support arms 71 is fixedly connected to the inner wall of the other end of the water inlet housing 4 in a circumferential array, the support head 72 is fixedly connected to the other end of multiple support arms 71, the drive device 73 is installed on the top of the support head 72, the output end of the drive device 73 passes through the support head 72 and is fixedly connected to one end of the drive rod 74, the pulverizing component 75 is installed on the drive rod 74, and the pulverizing component 75 is located inside the filter housing 6.

[0024] It should be noted that the multiple support arms 71 described in this embodiment are made of corrosion-resistant alloy material and are fixedly connected to the inner wall of the other end of the water inlet housing 4 in an equiangular circumferential array. The spacing between adjacent support arms 71 is uniform. One end of each support arm 71 is firmly connected to the inner wall of the water inlet housing 4 by welding or bolting, and the connection is smoothed to reduce obstruction to water flow. The other ends converge towards the center and are jointly fixedly connected to the support head 72. The support arms 71 adopt a lightweight structural design, which reduces the overall weight while ensuring sufficient support strength. The support head 72 is an integrated molding structure made of high-strength engineering plastic. Its outer periphery is connected to the ends of each support arm 71 by a fastening structure. The interior is provided with a through hole adapted to the output end of the drive device 73. Wear-resistant bearings and seals are installed in the hole to ensure the stability of the drive rod 74 when rotating and to prevent rainwater from seeping into the support head 72 and affecting the operation of the components. The drive unit 73 is a drive motor. Its output end passes through the through hole of the support head 72 and is connected to one end of the drive rod 74 by a rigid coupling. The coupling can compensate for installation deviations and buffer the impact force during operation. The drive rod 74 is made of high-strength metal material with anti-corrosion treatment. It cooperates with the bearing in the support head 72 to ensure coaxiality and smoothness during rotation. The crushing component 75 is installed on the drive rod 74 through a stable connection. The whole is located in the central area inside the filter housing 6 and maintains an appropriate gap with the inner wall of the filter housing 6 to avoid interference during rotation and ensure effective treatment of impurities in the filter housing 6. The array distribution of the support arms 71 makes the support head 72 bear force evenly, providing stable support for the drive unit 73 and the drive rod 74, adapting to the dynamic working conditions during crushing operation. The overall structural design takes into account the smoothness of water flow, component stability and operational effectiveness.

[0025] Specifically, when the rainwater harvesting device is working, rainwater first enters the inlet housing 4. Because both the inlet housing 4 and the drain housing 3 are conical structures with a small opening at the junction, the Venturi effect is used to increase the water flow velocity, enhancing the flushing force on light impurities and reducing sedimentation. The rainwater then flows to the filter housing 6, and after being filtered through its mesh, it flows into the drain housing 3 through the gap between the inner walls of the filter housing 6 and the drain housing 3, and then into the collection tank 1. The sealing cover 2 can be manually removed to clean the sediment inside the collection tank 1. When the filter housing 6 becomes clogged due to the accumulation of impurities, the drainage speed slows down, causing water to accumulate in the inlet housing 4. When the accumulated water submerges the photoelectric sensor 83, the sensor transmits a signal to the controller 81, and the controller 81 starts the drive device 73. The drive rod 74 drives the crushing component 75 located inside the filter housing 6 to operate. The crushing teeth 752 break up the blockage impurities, and the scraper 755 scrapes the inner wall of the filter housing 6 to remove the attached impurities, so that the filtration is restored to smooth. After the accumulated water is discharged, the drive device 73 stops working. At the same time, the water level sensor 82 in the water collection tank 1 monitors the water level and supplies water through the drainage pipe 11 or overflows through the overflow tank 12. This device detects blockages through the photoelectric sensor 83 and automatically starts the crushing component 75 to unclog the blockage without manual intervention. This solves the problems of existing devices in the background technology that lack an automatic unclogging mechanism, require manual cleaning leading to increased labor costs, and affect efficiency due to untimely cleaning. In addition, the threaded connection of the filter housing 6 makes it easy to disassemble and maintain, further improving its practicality.

[0026] In one embodiment of this utility model, such as Figures 1-4 As shown, the pulverizing assembly 75 includes a first fixed sleeve 751, pulverizing teeth 752, a second fixed sleeve 753, a connecting arm 754, and a scraper 755. Multiple first fixed sleeves 751 and multiple second fixed sleeves 753 are alternately fixedly sleeved on the outer wall of the drive rod 74. Multiple pulverizing teeth 752 are fixedly connected to the outer wall of the first fixed sleeve 751 in a circumferential array. One end of the connecting arm 754 is fixedly connected to the outer wall of the second fixed sleeve 753. One side of the scraper 755 is fixedly connected to the other end of the connecting arm 754, and the other side of the scraper 755 abuts against the inner wall of the filter housing 6.

[0027] Specifically, when the filter housing 6 becomes clogged due to the accumulation of impurities, rainwater accumulates in the inlet housing 4 and submerges the photoelectric sensor 83. The sensor transmits a signal to the controller 81, which then activates the drive device 73 to rotate the drive rod 74. The first fixed sleeve plate 751 and the second fixed sleeve plate 753, which are fixed alternately on the drive rod 74, rotate synchronously. The pulverizing teeth 752 on the outer wall of the first fixed sleeve plate 751 are arranged in a circumferential array to pulverize impurities such as leaves and gravel inside the filter housing 6. The second fixed sleeve plate 753 drives the scraper 75 through the connecting arm 754. The rotating scraper 5 against the inner wall of the filter housing 6 removes the attached impurities. The combined action of the two forces restores the pores of the filter housing 6 to their original state, allowing rainwater to flow smoothly through the gap between the filter housing 6 and the drainage housing 3 into the water collection tank 1. After the accumulated water is discharged, the drive device 73 stops working. This structure forms a dual automatic unblocking mechanism through the active crushing of the crushing teeth 752 and the cleaning of the inner wall of the scraper 755. It solves the problems of easy clogging of filter components and the need for manual cleaning in the background technology, which leads to increased labor costs and affected collection efficiency, without the need for manual intervention, and ensures the long-term stable operation of the device.

[0028] In one embodiment of this utility model, such as Figures 1-4 As shown, it also includes a control component 8, which includes a controller 81, a water level sensor 82, and a photoelectric sensor 83. The controller 81 is installed on the top of the water collection tank 1, the water level sensor 82 is installed on the inner wall of the water collection tank 1, and the photoelectric sensor 83 is installed on the inner wall of the water inlet housing 4.

[0029] Furthermore, the drive unit 73, the water level sensor 82, and the photoelectric sensor 83 are all electrically connected to the controller 81, and the controller 81 is electrically connected to an external power supply.

[0030] Specifically, the controller 81, installed on top of the water collection tank 1, serves as the core, forming an electrical connection with the water level sensor 82 installed on the inner wall of the water collection tank 1, the photoelectric sensor 83 on the inner wall of the inlet housing 4, and the drive device 73. Powered by an external power source, the water level sensor 82 monitors the water level in the water collection tank 1 in real time and transmits the data to the controller 81. The controller 81 then controls drainage or overflow based on the water level. When the filter housing 6 becomes clogged, causing water accumulation in the inlet housing 4, the accumulated water submerges the photoelectric sensor 83. The sensor transmits a signal to the controller 81, which immediately activates the drive device 73, driving the pulverizing assembly 75 to pulverize the contents of the filter housing 6. Impurities are crushed and cleaned. Once the blockage is cleared and the water in the inlet housing 4 is drained, the photoelectric sensor 83 no longer triggers a signal, and the controller 81 shuts down the drive device 73. This control component 8 detects the blockage status in real time through the photoelectric sensor 83, and the controller 81 automatically controls the drive device 73 to start or stop, realizing automatic unblocking of the filter component without manual intervention. This solves the problem in the prior art where existing devices lack an automatic unblocking mechanism, requiring manual cleaning, which leads to increased labor costs and affects rainwater collection efficiency due to untimely cleaning. At the same time, the monitoring by the water level sensor 82 ensures the stable operation of the water collection tank 1, further improving the reliability of the device.

[0031] It should be understood that a drain pipe 11 is fixedly connected to the bottom of one side of the water collection tank 1, and an overflow trough 12 is provided on the top of the other side of the water collection tank 1. There is a gap between the outer wall of the filter housing 6 and the inner wall of the drain housing 3 for drainage.

[0032] In summary, in the roof greening rainwater collection device of this utility model embodiment, rainwater flows in through the inlet housing 4, and the flow rate is increased by the Venturi effect of the conical structure. After being filtered by the filter housing 6, it flows into the water collection tank 1 through the gap between the filter housing 6 and the drainage housing 3. The sealing cover plate 2 facilitates the cleaning of the water collection tank 1. When the filter housing 6 is blocked and water accumulates in the inlet housing 4, submerging the photoelectric sensor 83, the controller 81 starts the drive device 73, which drives the crushing teeth 752 of the crushing component 75 to crush impurities and the scraper 755 to scrape the inner wall to unclog. After the water is drained, the drive device 73 stops. The water level sensor 82 works with the drainage pipe 11 and the overflow tank 12 to regulate the water level. This device detects blockages through sensors and automatically starts unblocking, eliminating the need for manual cleaning. This solves the problems of existing devices in the background art that lack an automatic unblocking mechanism and require manual cleaning, which increases costs and affects efficiency.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rainwater collection device for rooftop greening, characterized in that, It includes a water collection tank (1), a sealing cover (2), a drainage shell (3), a water inlet shell (4), a threaded sleeve (5), a filter shell (6), and a dredging mechanism (7), wherein, The sealing cover (2) is snapped onto the side wall of the water collection tank (1); One end of the drainage shell (3) is fixedly connected to the top of the water collection tank (1), and one end of the water inlet shell (4) is fixedly connected to the other end of the drainage shell (3). The threaded sleeve (5) is fixedly connected to the junction of the inner walls of the drainage shell (3) and the water inlet shell (4), and one end of the filter shell (6) is threaded to the inner wall of the threaded sleeve (5). The unblocking mechanism (7) includes a support arm (71), a support head (72), a drive device (73), a drive rod (74), and a crushing assembly (75), wherein, One end of one of the multiple support arms (71) is fixedly connected in a circular array to the inner wall of the other end of the water inlet housing (4). The support head (72) is fixedly connected to the other end of the multiple support arms (71). The drive device (73) is installed on the top of the support head (72). The output end of the drive device (73) passes through the support head (72) and is fixedly connected to one end of the drive rod (74). The pulverizing component (75) is installed on the drive rod (74) and is located inside the filter housing (6).

2. The rooftop greening rainwater collection device according to claim 1, characterized in that, The crushing assembly (75) includes a first fixed sleeve plate (751), crushing teeth (752), a second fixed sleeve plate (753), a connecting arm (754), and a scraper (755), wherein, Multiple first fixing sleeves (751) and multiple second fixing sleeves (753) are alternately fixedly sleeved on the outer wall of the drive rod (74). Multiple crushing teeth (752) are fixedly connected in a circumferential array to the outer wall of the first fixing sleeve (751). One end of the connecting arm (754) is fixedly connected to the outer wall of the second fixing sleeve (753). One side of the scraper (755) is fixedly connected to the other end of the connecting arm (754), and the other side of the scraper (755) abuts against the inner wall of the filter housing (6).

3. The rooftop greening rainwater collection device according to claim 2, characterized in that, It also includes a control component (8), which comprises a controller (81), a water level sensor (82), and a photoelectric sensor (83), wherein, The controller (81) is installed on the top of the water collection tank (1), the water level sensor (82) is installed on the inner wall of the water collection tank (1), and the photoelectric sensor (83) is installed on the inner wall of the water inlet housing (4).

4. The rooftop greening rainwater collection device according to claim 1, characterized in that, A drain pipe (11) is fixedly connected to the bottom of one side of the water collection tank (1), and an overflow trough (12) is opened on the top of the other side of the water collection tank (1).

5. The rooftop greening rainwater collection device according to claim 1, characterized in that, Both the drainage shell (3) and the water inlet shell (4) are conical structures, and the opening at one end where the drainage shell (3) and the water inlet shell (4) intersect is smaller than the opening at the other end.

6. The rooftop greening rainwater collection device according to claim 3, characterized in that, The drive device (73), the water level sensor (82) and the photoelectric sensor (83) are all electrically connected to the controller (81), and the controller (81) is electrically connected to an external power source.

7. The rooftop greening rainwater collection device according to claim 1, characterized in that, There is a gap between the outer wall of the filter housing (6) and the inner wall of the drainage housing (3) for drainage.

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