Rainwater collecting structure for low building
By introducing a combination of a first filter guide box and a second filter tube into the rainwater collection structure of low-rise buildings, and combining it with a conical funnel and a solenoid valve, automated impurity removal and monitoring are achieved, solving the problem of complex and inconvenient maintenance of existing filter structures, and improving filtration efficiency and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Existing rainwater harvesting structures for low-rise buildings have complex filtration systems that are inconvenient for daily maintenance.
It adopts a combination structure of a first filter guide box and a second filter tube, and achieves preliminary and secondary filtration of rainwater through V-shaped groove and baffle design. It also uses a conical funnel and solenoid valve to automatically remove impurities, and combines liquid sensors and control system to achieve automated monitoring and cleaning.
It simplifies the filtration process, reduces the frequency of manual cleaning, and improves filtration efficiency and ease of maintenance.
Smart Images

Figure CN224078294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater harvesting, and in particular to a rainwater harvesting structure for low-rise buildings. Background Technology
[0002] The design and implementation of rainwater harvesting structures for low-rise buildings aim to effectively collect and utilize rainwater resources while reducing the pressure on urban drainage systems.
[0003] However, the existing rainwater harvesting structures for low-rise buildings have complex filtration systems during the rainwater harvesting process, making them inconvenient for daily maintenance.
[0004] Therefore, it is essential to invent a rainwater harvesting structure for low-rise buildings. Utility Model Content
[0005] To solve the above-mentioned technical problems, the present invention provides a rainwater harvesting structure for low-rise buildings, which adopts the following technical solution: a rainwater harvesting structure for low-rise buildings, including a first filter guide box, a second filter pipe, a conveying pipe, a rainwater collection container and a control box, wherein: the first filter guide box is fixedly connected to the second filter pipe through a connector one, the second filter pipe is fixedly connected to one end of the conveying pipe through a connector two, and the other end of the conveying pipe is fixedly connected to the rainwater collection container through a connector three;
[0006] The upper surface of the first filter guide box is provided with an inclined V-shaped groove. Several leakage holes are evenly opened on both sides inside the V-shaped groove. The leakage holes are connected to the inside of the first filter guide box. A guide pipe is provided at the bottom of the first filter guide box. The guide pipe is connected to the inside of the first filter guide box. The high end of the guide pipe near the V-shaped groove is fixedly connected to the connector.
[0007] The second filter tube is provided with a partition, and the partition and the second filter tube form a cavity one and a cavity two, and the bottoms of the cavity one and the cavity two are connected.
[0008] The second filter tube is provided with an inlet and an overflow outlet on one side. Both the inlet and the overflow outlet are connected to the cavity. The overflow outlet is located below the inlet.
[0009] The input port is fixedly connected to the other end of the connector;
[0010] The second filter tube has an output port on the other side, which is connected to the cavity and is located below the overflow port.
[0011] The output port is fixedly connected to one end of the connector two;
[0012] The bottom of the second filter tube is detachably fixed with a conical funnel, which is connected to cavity one and cavity two;
[0013] An electromagnetic valve is fixedly installed at the outlet of the conical funnel;
[0014] The solenoid valve is electrically connected to the control system inside the control box.
[0015] A transparent observation window is provided in the lower middle part of the second filter tube.
[0016] A liquid sensor is fixedly installed in the overflow port, and the liquid sensor is electrically connected to the control system inside the control box.
[0017] A second liquid sensor is fixedly installed in the output port, and the second liquid sensor is electrically connected to the control system inside the control box.
[0018] A liquid sensor three is fixedly installed in the conical funnel, and the liquid sensor three is electrically connected to the control system inside the control box.
[0019] The rainwater collection container is provided with a connection port and a series port, both of which are connected to the inside of the rainwater collection container. The series port is located on the lower side of the rainwater collection container, and a sealing cap is detachably and fixedly installed on the series port. The rainwater collection container is fixedly connected to the connector three through the connection port.
[0020] A pump box is fixedly installed on the rainwater collection container. The input end of the pump inside the pump box is connected to the inside of the rainwater collection container, and the output end of the pump inside the pump box is fixedly connected to the drain pipe outside the pump box. The pump is electrically connected to the control system inside the control box.
[0021] A liquid level sensor is fixedly installed inside the rainwater collection container, and the liquid level sensor is electrically connected to the control system inside the control box.
[0022] Compared with the prior art, the advantages of this utility model are:
[0023] The overall design of this utility model allows for the interception and filtration of larger impurities in rainwater through a first filter guide box when collecting rainwater in low-rise buildings. The impurities then automatically fall off the first filter guide box under their own weight. Small solid particles in the water are then filtered through a second filter tube and discharged through a discharge solenoid valve under their own force, making filtration simpler and more convenient for daily maintenance. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall connection structure of this utility model.
[0025] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.
[0026] Figure 3 This is a schematic diagram of the first filter guide box structure of this utility model.
[0027] Figure 4 This is a schematic diagram of the second filter structure of this utility model.
[0028] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the second filter of this utility model.
[0029] In the picture:
[0030] First filter guide box 1, V-shaped groove 11, leakage hole 12, guide pipe 13, second filter pipe 2, partition 21, cavity one 22, cavity two 23, inlet pipe 24, overflow pipe 25, outlet pipe 26, transparent observation window 27, conical funnel 28, solenoid valve 29, connector one 3, conveying pipe 4, connector two 5, rainwater collection container 6, connection port 61, series port 62, sealing cover 63, connector three 7, pump box 8, drain pipe 9, control box 10. Detailed Implementation
[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0032] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.
[0033] The present invention will be further described below with reference to the accompanying drawings: Example
[0034] Reference Figure 1-5 A rainwater harvesting structure for low-rise buildings includes a first filter guide box 1, a second filter pipe 2, a conveying pipe 4, a rainwater collection container 6, and a control box 10. The first filter guide box 1 is fixedly connected to the second filter pipe 2 via a connector 3, such as by heat fusion or threaded connection. The second filter pipe 2 is fixedly connected to one end of the conveying pipe 4 via a connector 5, and the other end of the conveying pipe 4 is fixedly connected to the rainwater collection container 6 via a connector 7. This allows rainwater flowing down from the low-rise building to be filtered by the first filter guide box 1 and the second filter pipe 2, and then conveyed to the rainwater collection container 6 via the conveying pipe 4 for collection.
[0035] The upper surface of the first filter guide box 1 is provided with an inclined V-shaped groove 11 to catch rainwater flowing down from low-rise buildings, thus improving rainwater collection. Several perforations 12 are evenly distributed on both sides of the inside of the V-shaped groove 11 to filter out large impurities in the rainwater, causing them to remain outside the V-shaped groove 11. This allows some rainwater to enter the first filter guide box 1, and the large impurities will move from the high end to the low end of the V-shaped groove 11 under their own weight and the scouring effect of the rainwater. Until it falls off the first filter guide box 1, large impurities are prevented from accumulating in the V-groove 11 and causing blockage, thereby reducing the frequency of manual cleaning. The leak hole 12 is connected to the inside of the first filter guide box 1. A guide pipe 13 is provided at the bottom of the first filter guide box 1. The guide pipe 13 is connected to the inside of the first filter guide box 1. The high end of the guide pipe 13 near the V-groove 11 is fixedly connected to one end of the connector 3 so that rainwater entering the first filter guide box 1 can enter the second filter pipe 2 through the guide pipe 13 for further filtration.
[0036] The second filter tube 2 is equipped with a baffle 21. The baffle 21 prevents unfiltered rainwater flowing into the first filter guide box 1 from flowing directly out of the output port 26 when the rainwater inside the second filter tube 2 is discharged through the output port 26, thus playing a certain isolation and buffering effect and avoiding leakage. The baffle 21 and the second filter tube 2 form a cavity 1 22 and a cavity 23. The bottoms of the cavity 1 22 and the cavity 23 are connected so that the rainwater inside the first filter guide box 1 can be filtered twice through the cavity 1 22 and the filtered rainwater can enter the cavity 23.
[0037] The second filter tube 2 is provided with an inlet 24 and an overflow 25 on one side. Both the inlet 24 and the overflow 25 are connected to the cavity 22. The overflow 25 is below the inlet 24 so that when the conical funnel 28 is blocked or the rainwater collection container 6 is full of rainwater, the rainwater can be automatically discharged from the overflow 25 to avoid putting too much pressure on the second filter tube 2.
[0038] The inlet 24 is fixedly connected to the other end of the connector 3 so that rainwater inside the first filter guide box 1 can enter the cavity 22 through the inlet 24.
[0039] The second filter tube 2 has an output port 26 on the other side. The output port 26 is connected to the cavity 23 and is located below the overflow port 25.
[0040] The output port 26 is fixedly connected to one end of the connector 2 5 so that the rainwater filtered inside the cavity 2 23 can be transported to the rainwater collection container 6 for collection through the output port 26 and the conveying pipe 4.
[0041] The bottom of the second filter tube 2 is fixed with a conical funnel 28 by threads or bolts, so that the conical funnel 28 can be disassembled and cleaned. The conical funnel 28 is connected to the first cavity 22 and the second cavity 23, so that the particulate impurities in the rainwater entering the first cavity 22 will fall into the conical funnel 28 under the action of their own gravity.
[0042] A solenoid valve 29 is fixedly installed at the outlet of the conical funnel 28 so as to discharge particulate impurities and some rainwater that fall into the conical funnel 28 through the second filter pipe 2, thereby reducing the frequency of manual cleaning.
[0043] In this embodiment, a transparent observation window 27 is provided in the lower middle part of the second filter tube 2 so as to observe whether the bottom of the second filter tube 2 is blocked by large impurities.
[0044] In this embodiment, a liquid sensor is fixedly installed in the overflow port 25 so as to monitor whether rainwater in the second filter pipe 2 flows out from the overflow port 25.
[0045] In this embodiment, a liquid sensor 2 is fixedly installed in the output port 26 so as to monitor whether rainwater in the second filter tube 2 flows out from the output port 26.
[0046] In this embodiment, a liquid sensor 3 is fixedly installed in the conical funnel 28 so as to monitor whether rainwater has entered the second filter tube 2.
[0047] Specifically, liquid sensor one, liquid sensor two, and liquid sensor three all employ resistive liquid level sensors, pressure water level sensors, etc.
[0048] In this embodiment, the rainwater collection container 6 is provided with a connection port 61 and a series port 62. Both the connection port 61 and the series port 62 are connected to the inside of the rainwater collection container 6. The series port 62 is located on the lower side of the rainwater collection container 6. A sealing cover 63 is detachably and fixedly installed on the series port 62. The rainwater collection container 6 is fixedly connected to the connector 7 through the connection port 61 so that the filtered rainwater can enter the rainwater collection container 6 through the connection port 61.
[0049] Specifically, when using it, an appropriate number of rainwater collection containers 6 can be selected according to the specific situation, and the serial ports 62 on each rainwater collection container 6 can be connected in series through the corresponding pipes.
[0050] In this embodiment, a pump box 8 is fixedly installed on the rainwater collection container 6. The input end of the pump inside the pump box 8 is connected to the inside of the rainwater collection container 6, and the output end of the pump inside the pump box 8 is fixedly connected to the drain pipe 9 on the outside of the pump box 8, so that the rainwater 1 collected inside the rainwater collection container 6 can be taken out and used by the pump.
[0051] In this embodiment, a liquid level sensor is fixedly installed inside the rainwater collection container 6 so as to monitor the rainwater collection status inside the rainwater collection container 6 in real time through the liquid level sensor.
[0052] Specifically, the liquid level sensor uses optical liquid level sensors, pressure water level sensors, etc.
[0053] Specifically, the control system includes a PLC and an alarm module;
[0054] Liquid sensor 1, liquid sensor 2, liquid sensor 3, and liquid level sensor are connected to the input terminal of the PLC;
[0055] The solenoid valve 29, alarm module, and water pump are connected to the output terminal of the PLC;
[0056] When liquid sensor 1, liquid sensor 2, and liquid sensor 3 are triggered simultaneously, the alarm module emits a buzzer alarm, thereby prompting the user that the conical funnel 28 is blocked and needs to be cleaned. To clean it, simply remove the conical funnel 28.
[0057] Specifically, in use, the first filter guide box 1 is fixedly installed on the side of the low building where the water flows, such as under the eaves, with the V-groove 11 facing upwards, using appropriate fasteners (such as bolts). The second filter pipe 2 is then vertically fixed to the wall of the low building using fasteners. It is then connected to the rainwater collection container 6 through the delivery pipe 4. The control box 10 can be placed in the required location, such as indoors.
[0058] In this way, on rainy days, some of the rainwater flowing down from low-rise buildings will flow into the V-shaped channel 11, filtering out large impurities in the rainwater. The large impurities will remain outside the V-shaped channel 11, allowing some rainwater to enter the first filter guide box 1. The large impurities will move from the high end of the V-shaped channel 11 to the low end under their own gravity and the scouring of the rainwater, until they fall off the first filter guide box 1. This prevents large impurities from accumulating in the V-shaped channel 11 and causing blockages, thereby reducing the frequency of manual cleaning.
[0059] Rainwater entering the first filter guide box 1 will enter the cavity 22 through the guide pipe 13 and the inlet 24. At this time, the particulate impurities in the rainwater will fall into the conical funnel 28 under their own gravity, and the solenoid valve 29 will be partially opened so that the particulate impurities falling into the conical funnel 28 will be discharged from the second filter pipe 2 along with some of the rainwater, reducing the frequency of manual cleaning.
[0060] Thus, the rainwater inside the first filter guide box 1 is filtered a second time through the cavity 22;
[0061] Although the solenoid valve 29 is partially open, as long as the rainfall is less than the amount of rain, the filtered rainwater can enter the cavity 23. As the rainwater enters, the water level in the cavity 23 will gradually rise to the outlet 26, and finally be discharged from the outlet 26 through the conveying pipe 4 to the rainwater collection container 6 for collection.
[0062] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A rainwater harvesting structure for low-rise buildings, characterized in that: It includes a first filter guide box (1), a second filter tube (2), a conveying pipe (4), a rainwater collection container (6), and a control box (10), wherein: the first filter guide box (1) is fixedly connected to the second filter tube (2) through a connector (3), the second filter tube (2) is fixedly connected to one end of the conveying pipe (4) through a connector (5), and the other end of the conveying pipe (4) is fixedly connected to the rainwater collection container (6) through a connector (7); The upper surface of the first filter guide box (1) is provided with an inclined V-shaped groove (11). Several leakage holes (12) are evenly opened on both sides inside the V-shaped groove (11). The leakage holes (12) are connected to the inside of the first filter guide box (1). The bottom of the first filter guide box (1) is provided with a guide pipe (13). The guide pipe (13) is connected to the inside of the first filter guide box (1). The guide pipe (13) is fixedly connected to one end of the connector (3) near the high end of the V-shaped groove (11). The second filter tube (2) is provided with a partition (21), and a cavity one (22) and a cavity two (23) are formed between the partition (21) and the second filter tube (2), and the bottoms of the cavity one (22) and the cavity two (23) are connected; The second filter tube (2) is provided with an inlet (24) and an overflow outlet (25) on one side. Both the inlet (24) and the overflow outlet (25) are connected to the cavity (22). The overflow outlet (25) is below the inlet (24). The input port (24) is fixedly connected to the other end of the connector (3); The second filter tube (2) has an output port (26) on the other side, which is connected to the cavity two (23) and is located below the overflow port (25); The output port (26) is fixedly connected to one end of the connector (5); The bottom of the second filter tube (2) is detachably fixed with a conical funnel (28), which is connected to cavity one (22) and cavity two (23); An electromagnetic valve (29) is fixedly installed at the outlet of the conical funnel (28). The solenoid valve (29) is electrically connected to the control system inside the control box (10).
2. The rainwater harvesting structure for low-rise buildings as described in claim 1, characterized in that: A transparent observation window (27) is provided in the lower middle part of the second filter tube (2).
3. The rainwater harvesting structure for low-rise buildings as described in claim 1, characterized in that: A liquid sensor is fixedly installed in the overflow port (25), and the liquid sensor is electrically connected to the control system inside the control box (10).
4. A rainwater harvesting structure for low-rise buildings as described in claim 1, characterized in that: A liquid sensor is fixedly installed in the output port (26), and the liquid sensor is electrically connected to the control system inside the control box (10).
5. A rainwater harvesting structure for low-rise buildings as described in claim 1, characterized in that: A liquid sensor three is fixedly installed in the conical funnel (28), and the liquid sensor three is electrically connected to the control system inside the control box (10).
6. A rainwater harvesting structure for low-rise buildings as described in claim 1, characterized in that: The rainwater collection container (6) is provided with a connection port (61) and a serial port (62). Both the connection port (61) and the serial port (62) are connected to the inside of the rainwater collection container (6). The serial port (62) is located on one side of the rainwater collection container (6) and a sealing cover (63) is detachably and fixedly installed on the serial port (62). The rainwater collection container (6) is fixedly connected to the connector three (7) through the connection port (61).
7. A rainwater harvesting structure for low-rise buildings as described in claim 6, characterized in that: A pump box (8) is fixedly installed on the rainwater collection container (6). The input end of the pump inside the pump box (8) is connected to the inside of the rainwater collection container (6). The output end of the pump inside the pump box (8) is fixedly connected to the drain pipe (9) outside the pump box (8). The pump is electrically connected to the control system inside the control box (10).
8. A rainwater harvesting structure for low-rise buildings as described in claim 7, characterized in that: A liquid level sensor is fixedly installed inside the rainwater collection container (6), and the liquid level sensor is electrically connected to the control system inside the control box (10).