Intelligent rainwater collecting device for sponge city
By introducing a filtration system and an automatic sensing device into the rainwater harvesting device, the problem of unstable rainwater quality has been solved, achieving efficient and low-cost rainwater harvesting and utilization.
Patent Information
- Application Number
- CN202423068199.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-12
Smart Images
Figure CN223497266U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rainwater reuse technology, specifically to a smart rainwater harvesting device for sponge cities. Background Technology
[0002] A sponge city refers to a city that, like a sponge, possesses excellent resilience in adapting to environmental changes and responding to natural disasters brought by rainwater. It absorbs, stores, infiltrates, and purifies rainwater when it rains, and releases and utilizes the stored water when needed, enabling the free movement and use of rainwater within the city. Sponge cities are typically equipped with specialized rainwater harvesting systems. The effectiveness of existing rainwater harvesting systems is affected by factors such as rainfall amount, frequency, and intensity. In areas with low rainfall, the amount of rainwater collected may be insufficient. The collected rainwater may also be contaminated by air pollution, rooftop pollutants, and other contaminants, leading to unstable rainwater quality. Furthermore, rainwater tanks require regular cleaning and maintenance; otherwise, they may become clogged or breed bacteria, increasing maintenance costs. Utility Model Content
[0003] In view of this, this application provides a smart rainwater harvesting device for sponge cities, which solves the technical problems in the prior art where the collected rainwater is contaminated by pollutants such as air pollution and roof pollutants, resulting in unstable quality of collected rainwater, and the rainwater tank needs to be cleaned and maintained regularly, which increases maintenance costs.
[0004] This application provides a smart rainwater harvesting device for sponge cities. The device includes: a filtration system comprising: a rainwater filter and a connecting pipe; the rainwater filter is used to filter rainwater and is disposed on the connecting pipe; a rainwater collection tank including an inlet; one end of the connecting pipe is connected to the bottom of the rainwater filter, and the other end of the connecting pipe is connected to the inlet of the rainwater collection tank; the rainwater collection tank is used to collect filtered rainwater; a flower trough placed on the rainwater collection tank, with a movable drain outlet in the middle of the flower trough for draining excess water from the flower trough; an overflow pipe, one end of which is connected to the movable drain outlet, and the other end of which is disposed outside the rainwater collection tank; and an automatic sensing device disposed on the bottom inner wall of the rainwater collection tank for monitoring the water quality and water level in the rainwater collection tank.
[0005] In one possible implementation, a downpipe is also included, the bottom end of which is connected to a connecting pipe, through which rainwater flows into the rainwater collection tank via the downpipe, the rainwater filter, and the connecting pipe.
[0006] In one possible implementation, a diverter is also included, which is disposed at the bottom of the rainwater filter, and a diverter pipe is disposed at one end of the diverter, with the diverter pipe facing the ground.
[0007] In one possible implementation, the filtration system further includes a first access port located above the rainwater filter.
[0008] In one possible implementation, the rainwater collection tank further includes a second access port located on the lower side of the rainwater collection tank.
[0009] In one possible implementation, the rainwater collection tank includes: an outer layer made of C8-LLDPE; a middle layer that is a foamed layer; and an inner layer that is a white inner lining.
[0010] In one possible implementation, the rainwater collection bucket is molded in one piece.
[0011] In one possible implementation, a water inlet is also included, which is located at the bottom of the rainwater collection tank.
[0012] In one possible implementation, a self-absorbing cotton swab is also provided inside the flower trough, which is used to absorb rainwater in the collection bucket.
[0013] This application provides a smart rainwater harvesting device for sponge cities. The device includes: a filtration system comprising: a rainwater filter and a connecting pipe; the rainwater filter is used to filter rainwater and is installed on the connecting pipe; a rainwater collection tank including an inlet; one end of the connecting pipe is connected to the bottom of the rainwater filter, and the other end is connected to the inlet of the rainwater collection tank; the rainwater collection tank is used to collect filtered rainwater; and a flower trough placed on the rainwater collection tank, with a movable drain outlet in the middle of the flower trough for draining excess water from the flower trough. An overflow pipe is included, with one end connected to the movable drain outlet and the other end located outside the rainwater collection tank. An automatic sensing device is located on one side of the bottom of the rainwater collection tank to monitor the water quality and level within the tank. By incorporating a rainwater filter and an automatic monitoring device, the problem of unstable rainwater quality caused by air pollution and roof pollutants is effectively solved. The overflow pipe maximizes rainwater utilization; when the amount of rainwater in the collection tank exceeds the bottom of the overflow pipe, the excess water overflows through it. Attached Figure Description
[0014] Figure 1 The diagram shown is a structural schematic of a rainwater harvesting device provided in an embodiment of this application;
[0015] Figure 2 The diagram shown is a structural schematic of the diversion pipe and diversion device of a rainwater collection device provided in an embodiment of this application.
[0016] Explanation of reference numerals in the attached figures:
[0017] 1. Filtration system; 11. Rainwater filter; 12. Connecting pipes; 13. Automatic sensing device; 14. First inspection port;
[0018] 2. Rainwater collection tank; 21. Water inlet; 22. Second inspection port;
[0019] 3. Flower bed; 31. Movable drain outlet;
[0020] 4. Overflow pipe;
[0021] 5. Drain pipes;
[0022] 6. Diverter pipe; 7. Diverter;
[0023] 8. Water intake. Detailed Implementation
[0024] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, top, bottom, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.
[0025] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0027] Application Overview
[0028] The construction of sponge cities and infrastructure mainly refers to the use of various technical approaches such as infiltration, retention, storage, purification, utilization, and drainage to achieve a healthy urban hydrological cycle, improve the city's ability to infiltrate, regulate, purify, utilize, and discharge runoff rainwater, and maintain or restore the city's sponge function. With "slow discharge and slow release" and "decentralized source control" as the main planning and design concepts, it avoids flooding while effectively collecting and utilizing rainwater.
[0029] The construction of sponge cities should adhere to principles such as ecological priority, combining natural methods with artificial measures. While ensuring urban drainage and flood control safety, it should maximize the accumulation, infiltration, and purification of rainwater in urban areas, promoting rainwater resource utilization and ecological environmental protection. Building a "sponge city" is not about tearing down and rebuilding, replacing the traditional drainage system, but rather about "reducing the burden" on and supplementing the traditional drainage system, maximizing the city's inherent functions. During the construction of sponge cities, the systematic nature of natural precipitation, surface water, and groundwater should be considered, coordinating all aspects of water cycle utilization such as water supply and drainage, and taking into account its complexity and long-term nature.
[0030] A sponge city refers to a city that, like a sponge, possesses excellent resilience in adapting to environmental changes and responding to natural disasters brought by rainwater. It absorbs, stores, infiltrates, and purifies rainwater when it rains, and releases and utilizes the stored water when needed, enabling the free movement and use of rainwater within the city. Sponge cities are typically equipped with specialized rainwater harvesting systems. The effectiveness of existing rainwater harvesting systems is affected by factors such as rainfall amount, frequency, and intensity. In areas with low rainfall, the amount of rainwater collected may be insufficient. The collected rainwater may also be contaminated by air pollution, rooftop pollutants, and other contaminants, leading to unstable rainwater quality. Furthermore, rainwater tanks require regular cleaning and maintenance; otherwise, they may become clogged or breed bacteria, increasing maintenance costs.
[0031] Figure 1 The diagram shown is a structural schematic of a rainwater harvesting device provided in an embodiment of this application. Figure 2 The diagram shown is a structural schematic of the diversion pipe and diversion device of a rainwater harvesting device provided in an embodiment of this application. Figure 1 as well as Figure 2As shown, the rainwater harvesting device includes: a filtration system 1, which includes a rainwater filter 11 and a connecting pipe 12. The rainwater filter 11 is used to filter rainwater and is installed on the connecting pipe 12; a rainwater collection tank 2, which includes an inlet 21. One end of the connecting pipe 12 is connected to the bottom of the rainwater filter 11, and the other end of the connecting pipe 12 is connected to the inlet 21 of the rainwater collection tank 2. The rainwater collection tank 2 is used to collect filtered rainwater; a flower trough 3, which is placed on the rainwater collection tank 2. A movable drain outlet 31 is provided in the middle of the flower trough 3 to drain excess water from the flower trough 3; and an overflow pipe 4 for overflowing. One end of pipe 4 is connected to the movable drain outlet 31, and the other end of overflow pipe 4 is set outside the rainwater collection tank 2. Automatic sensing device 13 is set on the bottom side of the rainwater collection tank 2. Automatic sensing device 13 is used to monitor the water quality and water level in the rainwater collection tank 2. By setting up a rainwater filter and an automatic monitoring device, the problem of rainwater being easily polluted by air pollution, roof pollutants and other pollutants in the prior art is effectively solved, resulting in unstable quality of collected rainwater. By setting up an overflow pipe, rainwater can be utilized to the maximum extent. When the amount of rainwater in the rainwater collection tank exceeds the bottom of the overflow pipe, the excess rainwater will overflow through the overflow pipe.
[0032] It should be understood that the automatic sensing device 13 can use a capacitive water level sensor. The capacitive water level sensor is a non-contact sensor. The capacitive sensor can be installed on the side of the bottom of the rainwater collection tank 2, close to the inner wall of the rainwater collection tank 2. By sensing changes in the liquid level and the size of the covered area, the capacitance value will change. The sensor determines whether there is water or not, and then sends a signal. After receiving the signal, the device will issue an alarm or light reminder.
[0033] In one possible implementation, a downpipe 5 is also included, the bottom end of which is connected to a connecting pipe 12. Rainwater flows through the downpipe 5, the rainwater filter 11, and the connecting pipe 12 into the rainwater collection tank 2. The downpipe 5, which carries rainwater, is connected to the connecting pipe 12 through a filtration system. When it rains, rainwater flows into the ground through the downpipe 5 outside the city building. In this application, a rainwater collection device is installed at the bottom of the downpipe 5 outside the city building. The filtered rainwater flows into the rainwater collection tank 2 through the rainwater filter 11 for reuse.
[0034] In one possible implementation, a diverter 7 is also included, located at the bottom of the rainwater filter 11, and a diverter pipe 6 is located at one end of the diverter 7, facing the ground. Initial rainwater (the first 2mm or 5 minutes of rainfall) is generally heavily polluted and has a small flow rate. As it flows through the diverter, gravity causes it to be discharged first through the low-lying open drain pipe. As the rainfall increases, a float, under water pressure, closes the drain pipe, forcing the rainwater to flow to the outlet pipe. After the rain stops, as the amount of rainwater in the device decreases, the float automatically resets, thus completing the diversion effect. A stainless steel filter screen is installed on the outlet pipe to pre-filter the rainwater. The remaining impurities are flushed away through the drain pipe during the next rainfall, thus achieving multiple functions such as diversion, filtration, and automatic sewage discharge.
[0035] In one possible implementation, the filtration system 1 further includes a first access port 14, which is located above the rainwater filter 11. The location of the first access port 14 above the rainwater filter 11 facilitates the maintenance or installation of the rainwater filter 11.
[0036] In one possible implementation, the rainwater collection tank 2 also includes a second access port 22, which is located on the lower side of the rainwater collection tank 2.
[0037] In one possible implementation, the rainwater collection bucket 2 includes: an outer layer made of C8-LLDPE, which is wear-resistant, scratch-resistant, has high mechanical strength, is non-toxic, does not scale, does not breed bacteria, and is economical and durable; a middle layer, which is a foamed layer to enhance the strength of the rainwater collection bucket 2 and provides functions such as heat preservation, shock resistance, and impact cushioning; and an inner layer, which is a white lining layer to keep the bucket clean and aesthetically pleasing. Overall, it is superior to ordinary plastic materials in terms of both service life and aesthetics.
[0038] In one possible implementation, the rainwater collection bucket 2 is molded in one piece, using a multi-layer foaming process.
[0039] In one possible implementation, a water intake 8 is also included. The water intake 8 is located at the bottom of the rainwater collection tank 2. The water intake 8 can be connected to a pipeline or directly draw water for irrigating the surrounding green landscape.
[0040] In one possible implementation, a self-absorbing cotton swab is also provided in the flower trough 3, which is used to absorb rainwater in the collection bucket 2.
[0041] In actual use, this rainwater harvesting device has low maintenance costs and makes full use of natural rainwater. When the amount of rainwater in the rainwater collection tank 2 exceeds the bottom of the overflow pipe 4, the excess rainwater will overflow through the overflow pipe 4. After a rainy day, during the dry period, rainwater can be directly sucked into the plant soil at the top of the rainwater tank using a self-absorbing cotton swab to irrigate the flowers and plants in the community, thereby improving the community's living environment.
[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A smart rainwater harvesting device for sponge cities, characterized in that, include: A filtration system (1) includes: a rainwater filter (11) and a connecting pipe (12). The rainwater filter (11) is used to filter rainwater and is disposed on the connecting pipe (12). Rainwater collection bucket (2), the rainwater collection bucket (2) includes an inlet (21), one end of the connecting pipe (12) is connected to the bottom of the rainwater filter (11), and the other end of the connecting pipe (12) is connected to the inlet (21) of the rainwater collection bucket (2). The rainwater collection bucket (2) is used to collect filtered rainwater. Flower trough (3), the flower trough (3) is placed on the rainwater collection bucket (2), and the flower trough (3) has a movable drain (31) in the middle, the drain (31) is used to drain the excess water in the flower trough (3); An overflow pipe (4) is provided, one end of which is connected to the movable drain outlet (31), and the other end of which is located outside the rainwater collection bucket (2). An automatic sensing device (13) is installed on one side of the bottom of the rainwater collection bucket (2). The automatic sensing device (13) is used to monitor the water quality and water level in the rainwater collection bucket (2).
2. The intelligent rainwater harvesting device for sponge cities according to claim 1, characterized in that, It also includes a downpipe (5), the bottom end of which is connected to a connecting pipe (12). Rainwater flows through the downpipe (5), the rainwater filter (11), and the connecting pipe (12) into the rainwater collection bucket (2).
3. The intelligent rainwater harvesting device for sponge cities according to claim 2, characterized in that, It also includes a flow diverter (7), which is disposed at the bottom of the rainwater filter (11), and A diversion pipe (6) is provided at one end of the diversion device (7), and the diversion pipe (6) is oriented towards the ground.
4. The intelligent rainwater harvesting device for sponge cities according to claim 1, characterized in that, The filtration system (1) further includes a first access port (14), which is located above the rainwater filter.
5. A smart rainwater harvesting device for sponge cities according to claim 1, characterized in that, The rainwater collection tank (2) also includes a second inspection port (22), which is located on the lower side of the rainwater collection tank (2).
6. A smart rainwater harvesting device for sponge cities according to claim 4, characterized in that, The rainwater collection bucket (2) includes: The outer layer is made of carbon 8 linear low-density polyethylene; Intermediate layer, wherein the intermediate layer is a foamed layer; The inner layer is a white inner lining.
7. A smart rainwater harvesting device for sponge cities according to claim 6, characterized in that, The rainwater collection bucket (2) is formed in one piece.
8. A smart rainwater harvesting device for sponge cities according to claim 1, characterized in that, It also includes a water inlet (8), which is located at the bottom of the rainwater collection bucket (2).
9. A smart rainwater harvesting device for sponge cities according to claim 1, characterized in that, The flower trough (3) is also equipped with a self-absorbing cotton swab, which is used to absorb rainwater in the collection bucket (2).