Multifunctional rainwater collection module

By introducing structures such as float rods, gears, rack blocks, and fan modules into the rainwater harvesting module of sponge cities, the automatic addition of disinfectant and automatic cleaning of filter cloth are achieved, solving the problem of impurities and bacteria in rainwater and improving the cleanliness and utilization efficiency of rainwater.

CN224259501UActive Publication Date: 2026-05-19SUZHOU FENGHONGLI ECOLOGICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU FENGHONGLI ECOLOGICAL TECH CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In traditional sponge city rainwater harvesting modules, rainwater contains impurities and bacteria. Long-term storage can easily lead to bacterial growth and cause the rainwater to smell bad. In addition, manually adding disinfectants is time-consuming and labor-intensive.

Method used

Design a multifunctional rainwater collection module, including a float rod, gears, rack and pinion blocks, and a storage box, to achieve automatic addition of disinfectant; automatic cleaning of the fan module and filter cloth; and impurity interception function in the collection hopper to prevent impurities from affecting filtration.

Benefits of technology

It enables automatic addition of disinfectant and automatic cleaning of filter cloth, improving the cleanliness of rainwater, reducing manual operation, and preventing rainwater pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multifunctional rainwater collection module which comprises a collection tank, two placement grooves are formed in one side of the inner wall of the collection tank, installation shafts are installed in the placement grooves through bearings, gears are installed on the outer portions of the installation shafts through flat keys, and floating ball rods are installed on the outer portions of the installation shafts through flat keys. Two storage boxes are mounted on the outer wall of one side of the collecting tank through bolts, and plug covers are in threaded connection with the outer walls of one sides of the tops of the storage boxes; when rainwater enters the collecting tank, as the rainwater continuously enters the collecting tank, the lowermost floating ball rod floats upwards due to buoyancy, the floating ball rod floats upwards to drive the mounting shaft to rotate, the rotating mounting shaft drives the gear to rotate, the rotating gear drives the rack block to move towards the interior of the collecting tank, and one end of the rack block is separated from the storage box; the solid disinfectant in the storage box can flow into the collecting tank through the discharging groove, manual adding is not needed in the process, disinfectant adding can be automatically achieved, and the function of the rainwater collecting module is expanded.
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Description

Technical Field

[0001] This utility model relates to the field of rainwater harvesting technology for sponge cities, and specifically to a multifunctional rainwater harvesting module. 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. It absorbs, stores, infiltrates, and purifies rainwater when it rains, and releases and utilizes the stored water when needed. The construction of sponge cities should adhere to principles such as ecological priority, combining natural methods with artificial measures to maximize the accumulation, infiltration, and purification of rainwater in urban areas while ensuring urban drainage and flood control safety, thereby promoting rainwater resource utilization and ecological environmental protection. With the increasing scarcity of water resources, rainwater harvesting and utilization has become a crucial component of sponge city construction, and rainwater harvesting devices play a vital role in this process.

[0003] A sponge city rainwater harvesting device, such as application number CN202220821261.X and authorization announcement date 20220816, includes a collection box, an inlet hopper, and a drive box. The drive box is fixedly connected inside the collection box, the inlet hopper is fixedly connected to the top of the drive box, and an outlet pipe is fixedly connected to the bottom of the drive box. A drive mechanism is installed inside the drive box, and a fixed base is fixedly connected inside the collection box and below the drive box. A cleaning mechanism is installed on the top of the fixed base, and a lifting mechanism is installed inside the collection box and on one side of the fixed base. The beneficial effect of this invention is that the drive mechanism allows the cleaning mechanism to reciprocate under power, separating impurities in the collected rainwater and thus improving the cleanliness of the rainwater.

[0004] Traditional rainwater harvesting modules for sponge cities store large amounts of rainwater in actual use. However, rainwater contains many impurities and bacteria, and prolonged storage in one place can easily lead to the growth of bacteria, causing the stored rainwater to become smelly and affecting its subsequent use. To solve this problem, disinfectant needs to be manually added after rainwater collection. Since there are many rainwater collection points in sponge cities, this process is time-consuming and labor-intensive. Therefore, there is an urgent need to design a multifunctional rainwater harvesting module to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multifunctional rainwater harvesting module to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multifunctional rainwater harvesting module includes a collection tank. Two mounting slots are formed on one side of the inner wall of the collection tank, and a mounting shaft is installed inside the mounting slot via bearings. A gear is mounted on the outside of the mounting shaft via a key, and a float rod is mounted on the outside of the mounting shaft via a key. Two storage boxes are bolted to the outer wall of one side of the collection tank, and a cap is threaded to the top of one side of the storage box. A guide shell is welded to one side of the inner wall of each storage box, and a rack block is slidably inserted inside the guide shell, with one end of the rack block located inside the mounting slot. The rack block meshes with the gear. Two discharge slots are formed on one side of the inner wall of the collection tank, and the discharge slots communicate with the storage boxes.

[0008] Furthermore, a cover plate is bolted to one side of the outer wall of the top of the collection tank, and a filter cloth is bolted between the cover plate and the top of the collection tank.

[0009] Furthermore, three support rods are bolted to the top outer wall of the cover plate, and a collection hopper is welded to the top of the three support rods. Multiple spiked claws are welded inside the collection hopper.

[0010] Furthermore, an installation groove is provided at the center of the outer wall of one end of the collection tank, and a fan module is installed inside the installation groove by bolts. An air outlet pipe is inserted into the top of the fan module, and the air outlet pipe is located inside the collection tank.

[0011] Furthermore, the air inlet of the fan module is threadedly connected to an air inlet pipe, and a filter cover is threadedly connected to one end of the air inlet pipe.

[0012] Furthermore, a float overflow pipe and a drain pipe are respectively inserted into the outer wall of one side of the collection tank, with the float overflow pipe located above the drain pipe and one end of the float overflow pipe located inside the collection tank.

[0013] In the above technical solution, the multifunctional rainwater harvesting module provided by this utility model has the following beneficial effects:

[0014] (1) With the storage box, float rod, gear, mounting shaft, rack and discharge chute set up, when rainwater enters the collection tank, as the rainwater continues to enter, the bottom float rod will rise due to buoyancy. The rising float rod will drive the mounting shaft to rotate, the rotating mounting shaft will drive the gear to rotate, the rotating gear will drive the rack block to move into the collection tank, one end of the rack block will detach from the storage box, and the solid disinfectant inside the storage box will flow into the collection tank through the discharge chute. This process does not require manual addition and can automatically add disinfectant, thus expanding the function of the rainwater collection module.

[0015] (2) Through the set fan module, air inlet pipe, filter cover and air outlet pipe, the fan module will start at timed by the control of the external control equipment. The outside air will flow into the air inlet pipe through the filter cover. The air will then flow into the fan module through the air inlet pipe and then into the air outlet pipe. The air outlet pipe will blow the filter cloth strongly, causing the filter cloth to move upward. Because the filter cloth is impacted, some of the dust on the filter cloth will be thrown out of the filter cloth, realizing the automatic cleaning of the filter cloth. At the same time, the high pressure gas sprayed from the air outlet pipe will flow into the collection hopper, blowing out the dust and leaves inside the collection hopper, realizing the automatic cleaning of the inside of the collection hopper.

[0016] (3) The collection bucket is cone-shaped, which facilitates the collection of rainwater into the collection tank. During the rainwater collection process, the claws inside the collection bucket can intercept and treat impurities such as leaves, preventing a large number of leaves from falling on the filter cloth and affecting the filtration of the filter cloth. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a multifunctional rainwater harvesting module of this utility model.

[0019] Figure 2 This is a side view of the collection tank and collection hopper provided in an embodiment of a multifunctional rainwater collection module of this utility model.

[0020] Figure 3 This is a schematic diagram of the planar structure of the collection tank and collection hopper provided in an embodiment of a multifunctional rainwater collection module of this utility model.

[0021] Figure 4 This invention provides an embodiment of a multifunctional rainwater harvesting module. Figure 3 Enlarged view of the structure of part A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Collection tank; 2. Cover plate; 3. Support rod; 4. Collection hopper; 5. Filter cloth; 6. Storage box; 7. Plug cover; 8. Mounting slot; 9. Drain pipe; 10. Float overflow pipe; 11. Air inlet pipe; 12. Fan module; 13. Filter screen cover; 14. Air outlet pipe; 15. Bar claw; 16. Placement slot; 17. Mounting shaft; 18. Float rod; 19. Gear; 20. Guide shell; 21. Rack block; 22. Discharge chute. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown in the figure, the present invention provides a multifunctional rainwater collection module, including a collection tank 1. Two placement grooves 16 are opened on one side of the inner wall of the collection tank 1, and a mounting shaft 17 is installed inside the placement groove 16 through a bearing. A gear 19 is installed outside the mounting shaft 17 through a flat key. A float rod 18 is installed outside the mounting shaft 17 through a flat key. Two storage boxes 6 are bolted to one side of the outer wall of the collection tank 1, and a plug 7 is threaded to one side of the top of the storage box 6. A guide shell 20 is welded to one side of the inner wall of the storage box 6. A rack block 21 is slidably inserted inside the guide shell 20, and one end of the rack block 21 is located inside the placement groove 16. The rack block 21 and the gear 19 mesh with each other. Two discharge grooves 22 are opened on one side of the inner wall of the collection tank 1, and the discharge grooves 22 are interconnected with the storage boxes 6.

[0026] Specifically, in this embodiment, a collection tank 1 is included. Two placement grooves 16 are formed on one side of the inner wall of the collection tank 1. An installation shaft 17 is mounted inside the placement groove 16 via bearings. A gear 19 is mounted on the outside of the installation shaft 17 via a flat key. A float rod 18, composed of a float and a plastic rod, is also mounted on the outside of the installation shaft 17 via a flat key. Two storage boxes 6 are bolted to one side of the outer wall of the collection tank 1. Disinfectant is stored inside the storage boxes 6. A cap 7 is threaded onto the top side of the outer wall of the storage box 6. A guide shell 20 is welded to one side of the inner wall of the storage box 6. A rack block 21 is slidably inserted inside the guide shell 20. As rainwater continuously enters the collection tank 1, the lowest... The float rod 18 will rise due to buoyancy. The rising float rod 18 will cause the mounting shaft 17 to rotate. The rotating mounting shaft 17 will cause the gear 19 to rotate. The rotating gear 19 will cause the rack block 21 to move into the collection tank 1. One end of the rack block 21 will detach from the storage box 6. The solid disinfectant inside the storage box 6 will flow under the action of gravity and then enter the collection tank 1. One end of the rack block 21 is located inside the placement groove 16. The rack block 21 and the gear 19 mesh with each other. Two discharge grooves 22 are opened on one side of the inner wall of the collection tank 1. The discharge grooves 22 facilitate the flow of disinfectant inside the storage box 6 into the collection tank 1. The discharge grooves 22 are interconnected with the storage box 6.

[0027] This utility model provides a multifunctional rainwater harvesting module. When rainwater enters the collection tank 1, the bottom float rod 18 will rise due to buoyancy as rainwater continues to enter. The rising float rod 18 will cause the mounting shaft 17 to rotate, and the rotating mounting shaft 17 will cause the gear 19 to rotate. The rotating gear 19 will cause the rack block 21 to move into the collection tank 1. One end of the rack block 21 will detach from the storage box 6, and the solid disinfectant inside the storage box 6 will flow into the collection tank 1 through the discharge chute 22. This process does not require manual addition and can automatically add disinfectant, thus expanding the function of the rainwater harvesting module.

[0028] In one embodiment provided by this utility model, such as Figure 1-3 As shown, a cover plate 2 is bolted to the outer wall of the top side of the collection tank 1, and a filter cloth 5 is bolted between the cover plate 2 and the top of the collection tank 1. When the rainwater collected by the collection hopper 4 flows into the collection tank 1, the filter cloth 5 will filter the rainwater, so that clean rainwater enters the collection tank 1.

[0029] In another embodiment provided by this utility model, such as Figure 1-3 As shown, three support rods 3 are bolted to the top outer wall of the cover plate 2, and a collection hopper 4 is welded to the top of the three support rods 3. Multiple barbed claws 15 are welded inside the collection hopper 4. When rainwater enters the collection hopper 4, the barbed claws 15 inside the collection hopper 4 can intercept and process impurities such as leaves, preventing a large number of leaves from falling onto the filter cloth 5.

[0030] In another embodiment provided by this utility model, such as Figure 2-3 As shown, a mounting groove 8 is provided at the center of the outer wall of one end of the collection tank 1, and a fan module 12 is installed inside the mounting groove 8 by bolts. The fan module 12 is preferably a DC blower RB9733. An air outlet pipe 14 is inserted into the top of the fan module 12 and is located inside the collection tank 1. An air inlet pipe 11 is threadedly connected to the air inlet of the fan module 12. Under the control of an external control device, the fan module 12 will start at regular intervals. Outside air will flow into the air inlet pipe 11 after being filtered by the filter cover 13, and then the air will flow into the fan module 12 through the air inlet pipe 11. The air then flows into the outlet pipe 14, which blows the filter cloth 5 forcefully, causing it to move upwards. Due to the impact, some of the dust on the filter cloth 5 is thrown out, thus achieving automatic cleaning of the filter cloth 5. At the same time, the high-pressure gas sprayed from the outlet pipe 14 flows into the collection hopper 4, blowing out the dust and leaves inside the collection hopper 4, thus achieving automatic cleaning of the inside of the collection hopper 4. Furthermore, one end of the inlet pipe 11 is threadedly connected to a filter screen cover 13, which consists of a threaded cover and a dustproof mesh, preventing external dust from entering the inlet pipe 11.

[0031] In another embodiment provided by this utility model, such as Figure 2-3As shown, a float overflow pipe 10 and a drain pipe 9 are respectively inserted into the outer wall of one side of the collection tank 1. When the water level inside the collection tank 1 rises to the position of the float at one end of the float overflow pipe 10, the float will rise and the float overflow pipe 10 will open, allowing the excess water in the collection tank 1 to be discharged. The drain pipe 9 is connected to the external irrigation equipment, and the float overflow pipe 10 is located above the drain pipe 9, with one end of the float overflow pipe 10 located inside the collection tank 1.

[0032] Example 1

[0033] A multifunctional rainwater harvesting module includes a collection tank 1. Two mounting slots 16 are formed on one side of the inner wall of the collection tank 1. A mounting shaft 17 is installed inside the mounting slots 16 via bearings. A gear 19 is mounted on the outside of the mounting shaft 17 via a key. A float rod 18, composed of a float and a plastic rod, is also mounted on the outside of the mounting shaft 17 via a key. Two storage boxes 6 are bolted to the outer wall of one side of the collection tank 1. The storage boxes 6 store disinfectant, and a cap 7 is threaded onto the top side of the outer wall of each storage box 6. A guide shell 20 is welded to one side of the inner wall of each storage box 6. A rack block 21 is slidably inserted into the guide shell 20. As rainwater continuously enters the collection tank 1, the rainwater... The float rod 18 below will rise due to buoyancy. The rising float rod 18 will cause the mounting shaft 17 to rotate. The rotating mounting shaft 17 will cause the gear 19 to rotate. The rotating gear 19 will cause the rack block 21 to move into the collection tank 1. One end of the rack block 21 will detach from the storage box 6. The solid disinfectant inside the storage box 6 will flow under the action of gravity and then enter the collection tank 1. One end of the rack block 21 is located inside the placement groove 16. The rack block 21 and the gear 19 mesh with each other. Two discharge grooves 22 are opened on one side of the inner wall of the collection tank 1. The discharge grooves 22 facilitate the flow of disinfectant inside the storage box 6 into the collection tank 1. The discharge grooves 22 are interconnected with the storage box 6.

[0034] Example 2

[0035] This embodiment further defines the features of Embodiment 1. A cover plate 2 is bolted to one side of the outer wall of the top of the collection tank 1, and a filter cloth 5 is bolted between the cover plate 2 and the top of the collection tank 1. When rainwater collected by the collection hopper 4 flows into the collection tank 1, the filter cloth 5 filters the rainwater, allowing clean rainwater to enter the collection tank 1. Three support rods 3 are bolted to the top of the outer wall of the cover plate 2, and a collection hopper 4 is welded to the top of each support rod 3. Multiple spiked parts 15 are welded inside the collection hopper 4. Rainwater enters the collection hopper 4 and is collected... The barbed claws 15 inside the collection hopper 4 can intercept and process impurities such as leaves, preventing a large number of leaves from falling onto the filter cloth 5. An installation groove 8 is provided at the center of the outer wall of one end of the collection tank 1, and a fan module 12 is bolted into the installation groove 8. The fan module 12 is preferably a DC blower RB9733. An air outlet pipe 14 is inserted into the top of the fan module 12, and the air outlet pipe 14 is located inside the collection tank 1. An air inlet pipe 11 is threadedly connected to the air inlet of the fan module 12. Controlled by an external control device, the fan module 12 will start periodically, allowing external air to enter. Air flows into the inlet duct 11 after being filtered by the filter cover 13. The air then flows into the fan module 12 through the inlet duct 11, and subsequently into the outlet duct 14. The outlet duct 14 powerfully blows air onto the filter cloth 5, causing it to move upwards. Due to the impact, some dust on the filter cloth 5 is thrown off, achieving automatic cleaning of the filter cloth 5. Simultaneously, the high-pressure gas ejected from the outlet duct 14 flows into the collection hopper 4, blowing out dust and leaves from inside the collection hopper 4, achieving automatic cleaning of the inside of the collection hopper 4. Furthermore, the inlet duct 11... The end is threaded with a filter cover 13, which consists of a threaded cover and a dustproof net to prevent external dust from entering the air inlet pipe 11. A float overflow pipe 10 and a drain pipe 9 are respectively inserted into the outer wall of one side of the collection tank 1. When the water level inside the collection tank 1 rises to the position of the float at one end of the float overflow pipe 10, the float will rise and the float overflow pipe 10 will open, allowing excess water in the collection tank 1 to be discharged. The drain pipe 9 is connected to external irrigation equipment, and the float overflow pipe 10 is located above the drain pipe 9, with one end of the float overflow pipe 10 located inside the collection tank 1.

[0036] Working Principle: When using this device, it can be moved outdoors. During rain, a large amount of rainwater will enter the collection hopper 4. The claws 15 inside the collection hopper 4 can intercept impurities such as leaves, preventing a large amount of leaves from falling onto the filter cloth 5. The rainwater collected in the collection hopper 4 will then flow into the collection tank 1. The filter cloth 5 will then filter the rainwater, allowing clean rainwater to enter the collection tank 1. As more rainwater enters the collection tank 1, the bottom float rod 18 will rise due to buoyancy. This rise will cause the mounting shaft 17 to rotate, which in turn will rotate the gear 19. The rotating gear 19 will then move the rack block 21 into the collection tank 1. One end of the rack block 21 will detach from the storage box 6, and the solid disinfectant inside the storage box 6 will flow into the collection tank 1 through the discharge chute 22. Inside, the rainwater inside the collection tank 1 is disinfected. This process does not require manual addition and can automatically add disinfectant, expanding the function of the rainwater collection module. During the rainwater collection process, the fan module 12 will start at regular intervals under the control of external control equipment. Outside air will flow into the air inlet pipe 11 after being filtered by the filter cover 13. The air will then flow into the fan module 12 through the air inlet pipe 11 and then into the air outlet pipe 14. The air outlet pipe 14 will blow the filter cloth 5 strongly, causing the filter cloth 5 to move upward. Due to the impact, some dust on the filter cloth 5 will be thrown out of the filter cloth 5, realizing automatic cleaning of the filter cloth 5. At the same time, the high-pressure gas sprayed from the air outlet pipe 14 will flow into the collection hopper 4, blowing out the dust and leaves inside the collection hopper 4, realizing automatic cleaning of the inside of the collection hopper 4.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multifunctional rainwater harvesting module, comprising a collection tank (1), characterized in that, Two placement slots (16) are opened on one side of the inner wall of the collection tank (1), and an installation shaft (17) is installed inside the placement slot (16) by bearing. A gear (19) is installed outside the installation shaft (17) by a flat key. A float rod (18) is installed outside the installation shaft (17) by a flat key. Two storage boxes (6) are installed on one side of the outer wall of the collection tank (1) by bolts. A plug (7) is threaded on one side of the outer wall of the top of the storage box (6). A guide shell (20) is welded on one side of the inner wall of the storage box (6). A rack block (21) is slidably inserted inside the guide shell (20). One end of the rack block (21) is located inside the placement slot (16). The rack block (21) meshes with the gear (19). Two discharge slots (22) are opened on one side of the inner wall of the collection tank (1), and the discharge slots (22) are interconnected with the storage boxes (6).

2. The multifunctional rainwater harvesting module according to claim 1, characterized in that, The top side of the collection tank (1) is fitted with a cover plate (2) by bolts, and a filter cloth (5) is fitted between the cover plate (2) and the top of the collection tank (1) by bolts.

3. A multifunctional rainwater harvesting module according to claim 2, characterized in that, Three support rods (3) are bolted to the top outer wall of the cover plate (2), and a collection bucket (4) is welded to the top of the three support rods (3). Multiple spiked claws (15) are welded inside the collection bucket (4).

4. A multifunctional rainwater harvesting module according to claim 1, characterized in that, An installation groove (8) is provided at the center of the outer wall of one end of the collection tank (1), and a fan module (12) is installed inside the installation groove (8) by bolts. An air outlet pipe (14) is inserted into the top of the fan module (12), and the air outlet pipe (14) is located inside the collection tank (1).

5. A multifunctional rainwater harvesting module according to claim 4, characterized in that, The air inlet of the fan module (12) is threadedly connected to an air inlet pipe (11), and one end of the air inlet pipe (11) is threadedly connected to a filter cover (13).

6. A multifunctional rainwater harvesting module according to claim 1, characterized in that, The outer wall of one side of the collection tank (1) is respectively connected to a float overflow pipe (10) and a drain pipe (9), and the float overflow pipe (10) is located above the drain pipe (9), with one end of the float overflow pipe (10) located inside the collection tank (1).