Rainwater collector with waterlogging prevention function
By incorporating a connecting float, airbag, and pressure sensor into the rainwater collector, the automatic shut-off function of the inlet is achieved, solving the problem of water accumulation in the rainwater collector. Furthermore, the cleaning structure and auger prevent clogging, thereby improving rainwater collection efficiency and environmental protection.
Patent Information
- Application Number
- CN202311528371.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-16
- Publication Date
- 2026-04-14
AI Technical Summary
Existing rainwater collectors cannot close the inlet in time after the rainwater collection is full, resulting in a large amount of rainwater accumulating inside and affecting the long-term use of the components.
A rainwater collector with flood prevention function was designed. By connecting a float plate, an air bladder and a pressure sensor, the rainwater collection tank is filled with water, and the top cover is automatically closed to shut off the water inlet. It is also equipped with a cleaning structure and a screed to prevent the filter screen and impurity collection frame from becoming clogged.
This technology enables rainwater collectors to close the inlet promptly after rainwater collection, preventing water accumulation, reducing component maintenance needs, mitigating urban flooding, improving the urban ecological environment, and saving manpower and resources.
Smart Images

Figure CN121853650A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rainwater harvester technology, specifically a rainwater harvester with flood prevention function. Background Technology
[0002] Rainwater harvesting, also known as rainwater harvesting and utilization systems, refers to the collection and utilization of rainwater runoff from building roofs and hardened surfaces such as roads and squares. This rainwater is then collected, transported, purified, and stored to provide rainwater for greening, landscape water features, washing, and groundwater replenishment. The goal is to comprehensively utilize rainwater resources and conserve water. Rainwater harvesting has broad significance, including mitigating urban flooding and groundwater level decline, controlling rainwater runoff pollution, and improving the urban ecological environment. Rainwater harvesting and utilization systems are used in buildings, roads, lakes, etc., to collect rainwater for green space irrigation, landscape water use, or to construct permeable pavements and use permeable materials to directly increase rainwater infiltration. Rainwater harvesters are essential in urban landscaping design for convenient future use.
[0003] Rainwater collectors generally consist of an inlet, a rainwater filtration structure, and a rainwater collection tank. During use, rainwater enters the rainwater collector through the inlet, undergoes preliminary filtration by the rainwater filtration structure, and then enters the rainwater collection tank for collection. However, existing rainwater collectors cannot close the inlet in time when the rainwater collection tank at the bottom is full, resulting in a large accumulation of rainwater inside the collector, which is detrimental to the long-term use of the internal components. Therefore, we propose a rainwater collector with flood prevention function. Summary of the Invention
[0004] The purpose of this invention is to provide a rainwater collector with flood prevention function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rainwater collector with flood prevention function, comprising an inlet, a filter pipe, and a water storage tank.
[0006] The bottom of the water inlet is connected to one end of the filter pipe, and the other end of the filter pipe is connected to a water storage tank. A filter assembly is installed inside the filter pipe. A guide groove is opened at the bottom of the filter pipe, and the guide groove is inserted into a guide rod. The side of the guide rod away from the guide groove is connected to the side of the connecting float plate. A limit rod is connected to the other side of the connecting float plate. The bottom of the connecting float plate is connected to one side of the air bladder, and the other side of the air bladder is connected to an auxiliary float plate. The limit rod is inserted into the limit groove.
[0007] Preferably, a pressure sensor is installed at the bottom of the filter assembly, a liquid level detector is installed inside the water tank, a control box is installed on the upper side of the water tank, and a top cover is rotatably connected to the top of the water inlet via a hydraulic rod.
[0008] Preferably, a rain detector is installed on the top of the top cover, and the two sides of the top cover are respectively rotatably connected to one end of a connecting rod, and the other end of the connecting rod is connected to a water storage tank.
[0009] Preferably, the top cover has an extension frame connected inside by a connecting spring, and an auxiliary pull rope is connected to one side of the two top covers. The side of the auxiliary pull rope away from the top cover is wound around an electric roller, and the electric roller is connected to a water storage tank through a mounting plate.
[0010] Preferably, a filter screen is installed at the bottom of the water inlet, a cleaning roller is provided on the upper side of the filter screen, toothed blocks are equidistantly connected on the outer side of the cleaning roller, and a brush layer is provided between two toothed blocks.
[0011] Preferably, the cleaning roller is connected to the output shaft of the drive motor via a rotating shaft, and an active roller is installed at the end of the cleaning roller near the drive motor. The active roller is rotatably connected to the driven roller via a connecting belt.
[0012] Preferably, the driven roller is connected to the connecting roller near the drive motor, and a conveyor belt is installed on the outside of the two connecting rollers.
[0013] Preferably, the filter tube has symmetrically installed inclined flow layers inside, the bottom of the inclined flow layers is connected to the impurity collection frame, and the impurity collection frame has reserved openings on both sides.
[0014] Preferably, a flow guide layer is installed inside the impurity collection frame, and a decontamination auger is provided at the bottom of the impurity collection frame, with one side of the decontamination auger being inserted into the decontamination auger.
[0015] Preferably, one end of the auger is connected to the rotating shaft of the auger motor, the outer side of the auger motor is connected to the bottom of the support frame, the upper side of the support frame is connected to the bottom of the inlet, and the oblique flow layer and the impurity collection frame are both grid-shaped.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the rainwater collector with flood prevention function is connected to the float plate, which is squeezed upward by the bottom water flow, air bag and auxiliary float plate until the connected float plate is squeezed against the pressure sensor at the bottom of the filter assembly. After the pressure sensor senses the pressure signal, it transmits the signal to the control box. This solves the problem that the rainwater collection box at the bottom of the rainwater collector cannot close the inlet in time after the rainwater is full, resulting in a large amount of rainwater accumulating in the collector.
[0017] 1. This rainwater collector with flood prevention function collects and utilizes runoff from building rooftops to provide rainwater replenishment for landscaping, water features, washing, and groundwater sources. The inlet should be closed promptly after rainwater collection is complete. To ensure timely closure, after rainwater collection is complete in both chambers of the storage tank, the collected rainwater accumulates and generates significant buoyancy, pushing the connecting float plate towards the bottom of the filter pipe. Under the influence of the bottom water flow, air bladder, and auxiliary float plate, the connecting float plate is pushed upwards until it contacts the pressure sensor at the bottom of the filter assembly. After the sensor detects the pressure signal, it transmits the signal to the control box. The control box controls the hydraulic rod to extend, pushing the top cover connected to it to reset. At this time, the top cover and the extension frame inside the top cover, connected by a connecting spring, block the upper side of the water inlet to prevent rainwater from entering the rainwater collector and causing excessive water accumulation inside the rainwater collector. This rainwater collector with flood prevention function is equipped with a connecting float and a pressure sensor, which can effectively transmit the signal that the water storage tank has finished storing water to the control box for processing and to stop rainwater accumulation, thus preventing a large amount of rainwater from accumulating inside the collector.
[0018] 2. This rainwater collector with flood prevention function can mitigate urban flooding and groundwater level decline, control rainwater runoff pollution, and improve the urban ecological environment. Rainwater carries a large amount of impurities, especially when rainwater collectors are used in gardens, where a large amount of garden debris such as leaves can clog the inlet. Therefore, timely cleaning is necessary. When collecting rainwater, the drive motor is started, and the drive motor drives the active roller and the cleaning roller to rotate through the output shaft. When the cleaning roller rotates, it cleans the debris attached to the filter screen surface through its outer toothed blocks and brush layer. At the same time, the active roller drives the driven roller to rotate through the connecting belt, which in turn drives the conveyor belt connected to the connecting roller to rotate. The conveyor belt sends the excess debris out of the inlet, which can effectively prevent the filter screen from clogging. This rainwater collector with flood prevention function is equipped with a cleaning structure and a structure for transporting cleaned debris at the inlet, which can effectively prevent the inlet from clogging.
[0019] 3. This rainwater collector with flood prevention function collects rainwater through collection, transportation, purification, and storage channels. After entering the filter pipe, the rainwater undergoes secondary filtration to remove smaller impurities. After passing through the inclined flow layer and impurity collection frame, the rainwater enters the storage tank. Excess impurities accumulate at the bottom of the impurity collection frame. The cleaning motor is activated, driving the cleaning auger to remove the debris from the bottom of the collection frame through spiral blades from the cleaning outlet. This ensures the impurity collection frame can be used for a long time without frequent disassembly and cleaning, saving manpower and resources. The rainwater collector with flood prevention function, equipped with a cleaning auger at the bottom of the impurity collection frame, effectively prevents the accumulation of large amounts of debris and impurities, eliminating the need for frequent disassembly and cleaning and saving manpower and resources. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main cross-sectional structure of the floating plate of the present invention;
[0021] Figure 2 This is a top view of the floating plate structure of the present invention;
[0022] Figure 3 This is a side view of the structure of the present invention;
[0023] Figure 4 This is a side view cross-sectional structural diagram of the present invention;
[0024] Figure 5 This is a schematic diagram of the main cross-sectional structure of the present invention;
[0025] Figure 6 This is a top view cross-sectional diagram of the inlet structure of the present invention.
[0026] In the diagram: 1. Inlet; 2. Filter pipe; 3. Water tank; 4. Filter assembly; 21. Guide groove; 211. Guide rod; 5. Connecting float; 51. Limiting rod; 52. Airbag; 53. Auxiliary float; 31. Limiting groove; 6. Pressure sensor; 61. Liquid level detector; 62. Control box; 63. Hydraulic rod; 64. Top cover; 65. Rain detector; 66. Connecting rod; 67. Connecting spring; 671. Extension frame; 68. Auxiliary pull rope; 681, electric roller; 69, mounting plate; 22, filter screen; 7, cleaning roller; 71, toothed block; 72, brush layer; 73, drive motor; 74, driving roller; 75, connecting belt; 76, driven roller; 77, connecting roller; 78, conveyor belt; 8, inclined flow layer; 9, impurity collection frame; 91, reserved opening; 92, guide layer; 93, auger for cleaning; 94, cleaning port; 95, cleaning motor; 96, support frame. Detailed Implementation
[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0028] Please see Figures 1-5 The present invention provides a technical solution: a rainwater collector with flood prevention function, comprising an inlet 1, a filter pipe 2, and a water storage tank 3.
[0029] The bottom of the inlet 1 is connected to one end of the filter pipe 2, and the other end of the filter pipe 2 is connected to the water storage tank 3. A filter assembly 4 is installed inside the filter pipe 2. A guide groove 21 is provided at the bottom of the filter pipe 2, and the guide groove 21 is inserted into a guide rod 211. The side of the guide rod 211 away from the guide groove 21 is connected to the side of the connecting float 5. A limit rod 51 is connected to the other side of the connecting float 5. The bottom of the connecting float 5 is connected to one side of the airbag 52, and the other side of the airbag 52 is connected to the auxiliary float 53. The limit rod 51 is inserted into the limit groove 31. A pressure sensor 6, model 2FMB6PN7, is installed at the bottom of the filter assembly 4. A liquid level indicator is installed inside the water storage tank 3. The detector 61 is a WKC1204 level detector. A control box 62 is installed on the upper side of the water tank 3. The top of the water inlet 1 is rotatably connected to a top cover 64 via a hydraulic rod 63. A rainwater detector 65, an RS200 sensor, is installed on the top of the top cover 64. The two sides of the top cover 64 are rotatably connected to one end of a connecting rod 66, and the other end of the connecting rod 66 is connected to the water tank 3. An extension frame 671 is connected inside the top cover 64 via a connecting spring 67. An auxiliary pull rope 68 is connected to one side of the two top covers 64. The side of the auxiliary pull rope 68 away from the top cover 64 is wound around an electric roller 681. The electric roller 681 is connected to the water tank 3 via a mounting plate 69.
[0030] In practice, when the rainwater detector 65 senses a rainwater signal, it transmits the signal to the control box 62. The control box 62 then controls the power supply to the level detector 61. When the level detector 61 detects a low water level inside the storage tank 3, it sends a signal back to the control box 62. After signal processing, the control box 62 controls the hydraulic rod 63 to retract. The retracted hydraulic rod 63 pulls inward and opens the top cover 64, which is rotatably connected to the connecting rod 66. At this time, the top cover 64 acts as a deflector, facilitating rapid rainwater collection. After the rainwater collection is completed, the inlet 1 should be closed promptly. To ensure timely closure of the inlet 1, after rainwater collection is completed in both chambers of the water storage tank 3, the collected rainwater accumulates and generates significant buoyancy, pressing the connecting float 5 towards the bottom of the filter pipe 2. The two sides of the connecting float 5 are respectively connected to the guide groove 21 and the limiting groove 31 via guide rods 211 and limiting rods 51, effectively preventing the connecting float 5 from shifting during its upward movement. The connecting float 5 is influenced by the bottom water flow, the air bladder 52, and the auxiliary float 53. The water tank is pressed from bottom to top until the pressure sensor 6 at the bottom of the connecting float 5 and filter assembly 4 is pressed. After the pressure sensor 6 senses the pressure signal, it transmits the signal to the control box 62. The control box 62 controls the hydraulic rod 63 to extend. The electric roller 681 installed on the upper side of the water tank 3 via the mounting plate 69 starts to rotate, driving the auxiliary pull rope 68 to pull down the top cover 64 and push the top cover 64 connected to it to reset. At this time, the top cover 64 and the extension frame 671 connected to the top cover 64 via the connecting spring 67 block the upper side of the water inlet 1 to prevent rainwater from entering the rainwater collector and causing excessive water accumulation inside the rainwater collector. This rainwater collector with flood prevention function collects and utilizes the runoff formed by the building roof to provide rainwater replenishment for landscaping, landscape water bodies, washing and groundwater sources. It is equipped with a connecting float 5 and a pressure sensor 6, which can effectively transmit the signal that the water storage tank 3 has finished storing water to the control box 62 for processing and to stop the accumulation of rainwater, thus preventing a large amount of rainwater from accumulating inside the collector.
[0031] See Figures 4-6 It is known that a filter screen 22 is installed at the bottom of the water inlet 1, and a cleaning roller 7 is provided on the upper side of the filter screen 22. Tooth blocks 71 are equidistantly connected to the outer side of the cleaning roller 7, and a brush layer 72 is provided between two tooth blocks 71. The cleaning roller 7 is connected to the output shaft of the drive motor 73 through a rotating shaft. An active roller 74 is installed at the end of the cleaning roller 7 near the drive motor 73. The active roller 74 is rotatably connected to the driven roller 76 through a connecting belt 75. The interior of the driven roller 76 is connected to a connecting roller 77 near the drive motor 73. A conveyor belt 78 is installed on the outer side of the two connecting rollers 77.
[0032] In practice, rainwater carries a large amount of impurities, especially during the use of rainwater collectors in gardens, where a large amount of garden debris such as leaves can clog the inlet 1. Therefore, timely cleaning is necessary. When collecting rainwater, the drive motor 73 is started. The drive motor 73 drives the active roller 74 and the cleaning roller 7 to rotate through the output shaft. When the cleaning roller 7 rotates, it cleans the debris attached to the surface of the filter screen 22 through the toothed blocks 71 and the brush layer 72 on its outer side. At the same time, the active roller 74 drives the driven roller 76 to rotate through the connecting belt 75, which in turn drives the connecting roller 77. The connected conveyor belt 78 rotates, sending excess garbage out of the inlet 1, effectively preventing the filter screen 22 from clogging. The conveyor belt 78 rotates in the same direction, transporting garbage on the surface of the conveyor belt 78 to the same side for disposal, facilitating quick garbage collection by staff. This rainwater collector with flood prevention function can mitigate urban flooding and groundwater level decline, control rainwater runoff pollution, and improve the urban ecological environment. The inlet 1 is equipped with a cleaning structure and a garbage transport structure after cleaning, which can effectively prevent the inlet 1 from clogging.
[0033] See Figures 4-5 It can be seen that the filter tube 2 has a symmetrically installed oblique flow layer 8 inside. The bottom of the oblique flow layer 8 is connected to the impurity collection frame 9. The impurity collection frame 9 has reserved openings 91 on both sides. The impurity collection frame 9 has a flow guide layer 92 installed inside. The bottom of the impurity collection frame 9 is provided with a cleaning auger 93. One side of the cleaning auger 93 is inserted into the cleaning auger 93. One end of the cleaning auger 93 is connected to the rotating shaft of the cleaning motor 95. The outside of the cleaning motor 95 is connected to the bottom of the support frame 96. The upper side of the support frame 96 is connected to the bottom of the water inlet 1. The oblique flow layer 8 and the impurity collection frame 9 are both grid-shaped.
[0034] In practice, rainwater needs to undergo further filtration after entering the filter pipe 2 to remove smaller impurities. After passing through the inclined flow layer 8 and the impurity collection frame 9, the rainwater enters the water storage tank 3 after passing through the filter assembly 4. At this point, excess impurities accumulate at the bottom of the impurity collection frame 9. The cleaning motor 95 is then activated, driving the cleaning auger 93 to rotate and discharge the debris at the bottom of the impurity collection frame 9 through the spiral blades from the cleaning port 94. This ensures that the impurity collection frame 9 can be used for a long time without frequent disassembly and cleaning. This rainwater collector, which saves manpower and resources, features a guide layer 92 at the bottom of the reserved opening 91 of the impurity collection frame 9. The guide layer 92 directs the larger water flow to one side, preventing the water flow from washing the garbage transported by the auger 93 back into the bottom of the impurity collection frame 9, thus avoiding low cleaning efficiency. The rainwater collector with flood prevention function accumulates rainwater through collection, water transportation, water purification, and storage channels. The auger 93 installed at the bottom of the impurity collection frame 9 effectively prevents the accumulation of large amounts of garbage and impurities at the bottom of the impurity collection frame 9, eliminating the need for frequent disassembly and cleaning, and saving manpower and resources.
[0035] In summary, when using this rainwater collector with flood prevention function, the rainwater detector 65 and the liquid level detector 61 respectively feed back weather information and water level information inside the water storage tank 3 to the control box 62. When the water level inside the water storage tank 3 is low, the hydraulic rod 63 is activated to retract and pull inward to open the top cover 64, which is rotatably connected to the connecting rod 66. Rainwater can then enter the water storage tank 3 sequentially through the inlet 1, filter pipe 2, impurity collection frame 9, inclined flow layer 8, and filter assembly 4. After the water storage tank 3 is filled with water, the pressure sensor 6 at the bottom of the connecting float 5 and filter assembly 4 is squeezed. After the pressure sensor 6 senses the pressure signal, it transmits the signal to the control box 62. The control box 62 controls the hydraulic rod 63 to extend, and the electric roller 681 installed on the upper side of the water storage tank 3 via the mounting plate 69 starts to rotate, driving the auxiliary pull rope 68 to pull down the top cover 64 and push the top cover 64 connected to it to reset. The contents not described in detail in this description are existing technologies known to those skilled in the art.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rainwater collector with flood prevention function, comprising an inlet (1), a filter pipe (2), and a water storage tank (3), characterized in that: The bottom of the inlet (1) is connected to one end of the filter pipe (2), and the other end of the filter pipe (2) is connected to the water storage tank (3). The filter pipe (2) is equipped with a filter assembly (4). The bottom of the filter pipe (2) is provided with a guide groove (21). The guide groove (21) is inserted into the guide rod (211). The side of the guide rod (211) away from the guide groove (21) is connected to the side of the connecting float (5). The other side of the connecting float (5) is connected to a limit rod (51). The bottom of the connecting float (5) is connected to one side of the airbag (52). The other side of the airbag (52) is connected to the auxiliary float (53). The limit rod (51) is inserted into the limit groove (31).
2. A rainwater collector with flood prevention function according to claim 1, characterized in that: The filter assembly (4) is equipped with a pressure sensor (6) at the bottom, the water tank (3) is equipped with a liquid level detector (61) inside, the water tank (3) is equipped with a control box (62) on the upper side, and the top of the water inlet (1) is rotatably connected to a top cover (64) via a hydraulic rod (63).
3. A rainwater collector with flood prevention function according to claim 2, characterized in that: A rain detector (65) is installed on the top of the top cover (64). The two sides of the top cover (64) are rotatably connected to one end of the connecting rod (66), and the other end of the connecting rod (66) is connected to the water storage tank (3).
4. A rainwater collector with flood prevention function according to claim 3, characterized in that: The top cover (64) is connected to an extension frame (671) via a connecting spring (67). An auxiliary pull rope (68) is connected to one side of the two top covers (64). The auxiliary pull rope (68) is wound around an electric roller (681) on the side away from the top cover (64). The electric roller (681) is connected to the water tank (3) via a mounting plate (69).
5. A rainwater collector with flood prevention function according to claim 1, characterized in that: A filter screen (22) is installed at the bottom of the water inlet (1). A cleaning roller (7) is provided on the upper side of the filter screen (22). Toothed blocks (71) are equidistantly connected on the outer side of the cleaning roller (7). A brush layer (72) is provided between two toothed blocks (71).
6. A rainwater collector with flood prevention function according to claim 5, characterized in that: The cleaning drum (7) is connected to the output shaft of the drive motor (73) via a rotating shaft. An active roller (74) is installed at one end of the cleaning drum (7) near the drive motor (73). The active roller (74) is rotatably connected to the driven roller (76) via a connecting belt (75).
7. A rainwater collector with flood prevention function according to claim 6, characterized in that: The driven roller (76) is connected to the connecting roller (77) near the drive motor (73), and a conveyor belt (78) is installed on the outside of the two connecting rollers (77).
8. A rainwater collector with flood prevention function according to claim 1, characterized in that: The filter tube (2) is symmetrically equipped with a flow layer (8), the bottom of which is connected to the impurity collection frame (9), and the impurity collection frame (9) has reserved openings (91) on both sides.
9. A rainwater collector with flood prevention function according to claim 8, characterized in that: The impurity collection frame (9) is equipped with a flow guide layer (92) inside, and a decontamination auger (93) is provided at the bottom of the impurity collection frame (9). One side of the decontamination auger (93) is inserted into the decontamination auger (93).
10. A rainwater collector with flood prevention function according to claim 9, characterized in that: One end of the auger (93) is connected to the rotating shaft of the auger motor (95), the outside of the auger motor (95) is connected to the bottom of the support frame (96), the upper side of the support frame (96) is connected to the bottom of the inlet (1), and the oblique flow layer (8) and the impurity collection frame (9) are both grid-shaped.
