Environment-friendly building rainwater recycling device
By introducing a conical filter cartridge and a debris removal mechanism into the rainwater harvesting device for environmentally friendly buildings, the problem of debris getting stuck on the reset side is solved, enabling rapid discharge of debris and backwashing of the filter cartridge, thereby improving rainwater purification efficiency and equipment operation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HUANWO ENVIRONMENTAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing environmentally friendly building rainwater harvesting devices often encounter problems when cleaning debris, such as debris getting stuck on the reset side, affecting the continuity of the cleaning work. Furthermore, the small storage space of the separator mesh leads to frequent motor operation, increasing energy consumption and reducing the efficiency of debris handling.
It adopts a conical filter cartridge and a dirt removal mechanism, including an external gear ring, a fixed ring, a T-shaped groove, a disc, a connecting rod, a push plate, a discharge pipe, a housing, a motor, and a pinion. The motor drives the pinion to rotate the push plate, realizing the rapid discharge of dirt. The backwashing pump is used to backwash the filter cartridge to improve the filtration efficiency.
It improves the efficiency of debris handling, reduces manual cleaning workload, extends equipment life, reduces power consumption, and ensures the stability and high efficiency of filtration.
Smart Images

Figure CN224292650U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of environmentally friendly building technology, specifically an environmentally friendly building rainwater harvesting device. Background Technology
[0002] Environmentally friendly building rainwater recycling refers to the process of collecting rainwater within a building area during the design and construction of a building by setting up rainwater collection systems, such as rainwater collection tanks and rooftop rainwater collection devices. This rainwater then undergoes a series of treatment processes, including sedimentation, filtration, and disinfection, to remove impurities and pollutants, bringing it to a certain water quality standard. The treated rainwater is then reused for non-potable purposes such as toilet flushing, green space irrigation, road cleaning, and landscape water replenishment. This achieves water resource recycling, reduces dependence on municipal water supply, decreases water consumption during building operation, alleviates pressure on urban drainage systems, and promotes the sustainable development of the construction industry.
[0003] For example, utility model patent CN220845835U discloses an environmentally friendly building rainwater recycling device, including a collection port, a drain pipe below the collection port, a first treatment box at the lower end of the drain pipe, a separator screen in the first treatment box, a sliding frame at the upper end of the first treatment box, a cleaning frame slidably connected to the sliding frame, a cleaning brush on the cleaning frame, the cleaning brush cooperating with the separator screen, a second treatment box and a dehydration box at the lower end of the first treatment box, the second treatment box being located below the separator screen. This device can clean the filter screen to avoid clogging by debris, can recycle moisture from debris to avoid waste, and is convenient for purification treatment and easy to use.
[0004] However, in actual use, it was found that when the cleaning rack of the device is cleaning up debris, the continuously entering debris is easily stuck on its reset side, which hinders the continuity of reset and cleaning work. In addition, the storage space of the separator is small, which requires the motor to run frequently, increasing motor wear and power consumption. This results in low efficiency in transferring debris from the separator to the debris pipe and in discharging it after dehydration, affecting the overall operating efficiency. Therefore, an environmentally friendly building rainwater recycling device is provided. Utility Model Content
[0005] The purpose of this application is to provide an environmentally friendly building rainwater harvesting device in order to solve the problems mentioned above.
[0006] The technical solution adopted in this application is as follows: an environmentally friendly building rainwater recycling device, including a treatment shell, a recycling pipe fixedly installed on the top surface of the treatment shell, a conical filter cylinder fixedly installed near the middle of the interior of the treatment shell, and a dirt removal mechanism provided inside the treatment shell;
[0007] The impurity removal mechanism includes an outer gear ring, a fixed ring, a T-shaped groove, a disc, a connecting rod, a push plate, a discharge pipe, a housing, a motor, and a pinion. The outer gear ring is located near the top of the interior of the processing housing. A fixed ring is fixedly installed on the top surface of the outer gear ring. A T-shaped groove is formed on the top surface of the fixed ring. A disc is located inside the T-shaped groove. A connecting rod is fixedly installed on the top surface of the disc. The top end of the connecting rod is fixed to the top surface of the interior of the processing housing. A housing is fixedly installed on the outer surface of the processing housing. A motor is fixedly installed on the bottom surface of the interior of the housing. A pinion is fixedly installed on the drive end of the motor, and the pinion meshes with the outer gear ring. A push plate is fixedly installed on the bottom surface of the outer gear ring. A discharge pipe is fixedly installed on the bottom surface of the processing housing.
[0008] In a preferred embodiment, a drain pipe is fixedly installed on the bottom surface of the processing housing, and a backwash pipe is fixedly installed through the outer surface of the drain pipe. One end of the backwash pipe extends into the interior of the conical filter cartridge, and multiple flushing nozzles are installed in a circumferential array on the outer surface of the backwash pipe.
[0009] In a preferred embodiment, a conical water inlet shroud is fixedly installed at the end of the recycling pipe away from the treatment housing, and the top surface of the conical water inlet shroud has multiple mounting holes arranged in a circumferential array.
[0010] In a preferred embodiment, a purification housing is fixedly installed at the bottom end of the drainage pipe, and a connecting drainage pipe is fixedly installed on the bottom surface of the purification housing.
[0011] In a preferred embodiment, an observation window is fixedly installed on the outer surface of the processing housing.
[0012] In a preferred embodiment, a water baffle is fixedly installed on one side of the housing, and two ventilation mesh panels are fixedly installed inside the water baffle on one side of the housing.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0014] 1. In this application, due to the adoption of the above-mentioned solution, the device can filter impurities in rainwater through the conical filter cartridge. The filtered impurities are collected in the processing housing and can be quickly discharged through the impurity removal mechanism, thereby improving the impurity treatment efficiency. Furthermore, after the impurities are removed, an external backwash pump can be started to allow liquid to be sprayed out through the backwash pipe and flushing nozzle to backwash the conical filter cartridge and improve its filtration efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this application;
[0016] Figure 2 This is a schematic diagram of the internal structure of the processing housing in this application;
[0017] Figure 3 This is a schematic diagram of the external gear ring structure without installation in this application;
[0018] Figure 4 For the purposes of this application Figure 3 Enlarged structural diagram at point A in the middle.
[0019] The diagram shows the following markings: 1. Processing housing; 2. Recycling pipe; 3. Drainage pipe; 4. Conical filter cartridge; 5. Impurity removal mechanism; 501. External gear ring; 502. Fixing ring; 503. T-shaped groove; 504. Disc; 505. Connecting support rod; 506. Push plate; 507. Discharge pipe; 508. Housing; 509. Motor; 510. Pinion; 6. Backwash pipe; 7. Flushing nozzle; 8. Conical water inlet hood; 9. Purification housing; 10. Connecting drain pipe; 11. Observation window; 12. Water baffle. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] refer to Figure 1 An environmentally friendly building rainwater recycling device includes a treatment shell 1, on the outer surface of which an observation window 11 is fixedly installed. Through the observation window 11, staff can intuitively observe the internal operating status of the treatment shell 1, such as the progress of rainwater treatment and the accumulation of impurities, so as to facilitate timely detection of problems and take corresponding measures, thereby improving the convenience of equipment maintenance and management. The observation window 11 can be made of tempered glass.
[0022] refer to Figure 1 , Figure 2 A recycling pipe 2 is fixedly installed on the top surface of the treatment housing 1. A conical water inlet hood 8 is fixedly installed at the end of the recycling pipe 2 away from the treatment housing 1. The top surface of the conical water inlet hood 8 has multiple mounting holes arranged in a circumferential array. The recycling pipe 2 facilitates the introduction of rainwater into the treatment housing 1. The conical water inlet hood 8 can expand the rainwater collection area, making it easier for rainwater to flow into the recycling pipe 2. The multiple mounting holes facilitate a stable connection with the building's rainwater drainage system, ensuring the efficient operation of rainwater collection.
[0023] refer to Figure 1 , Figure 2 and Figure 3 A conical filter cartridge 4 is fixedly installed near the center inside the treatment housing 1, and a dirt removal mechanism 5 is set inside the treatment housing 1. The conical filter cartridge 4 can perform preliminary filtration on the rainwater entering the treatment housing 1, intercepting larger particles of impurities, thus reducing the burden on subsequent rainwater treatment stages. The dirt removal mechanism 5 can further clean the impurities in the rainwater and improve the rainwater purification effect.
[0024] refer to Figure 1 , Figure 2 A drain pipe 3 is fixedly installed on the bottom surface of the treatment housing 1. A backwash pipe 6 is fixedly installed through the outer surface of the drain pipe 3. One end of the backwash pipe 6 extends into the interior of the conical filter cartridge 4. Multiple flushing nozzles 7 are installed in a circumferential array on the outer surface of the backwash pipe 6. The drain pipe 3 is used to discharge the treated rainwater. The backwash pipe 6 is connected to an external backwash pump. The backwash pipe 6 and the flushing nozzles 7 can backwash the conical filter cartridge 4 when needed to wash away impurities attached to the filter cartridge, prevent the filter cartridge from clogging, extend its service life, and ensure the stability of the filtration effect.
[0025] refer to Figure 1 A purification housing 9 is fixedly installed at the bottom of the drainage pipe 3, and a connecting drainage pipe 10 is fixedly installed on the bottom surface of the purification housing 9. The purification housing 9 is equipped with activated carbon plates and fine filter plates, and the connecting drainage pipe 10 can be connected to the inlet of the water pump. In this way, the purification housing 9 can perform deep purification treatment on the rainwater after preliminary filtration, further removing fine impurities and microorganisms in the rainwater, improving the water quality of the rainwater. The connecting drainage pipe 10 facilitates the transportation of the purified rainwater to the storage tank or water point, realizing the recycling of rainwater.
[0026] refer to Figure 2 , Figure 3 and Figure 4 The impurity removal mechanism 5 includes an outer gear ring 501, a fixing ring 502, a T-shaped groove 503, a disc 504, a connecting rod 505, a push plate 506, a discharge pipe 507, a housing 508, a motor 509, and a pinion 510. The outer gear ring 501 is located near the top inside the housing 1. The fixing ring 502 is fixedly installed on the top surface of the outer gear ring 501. A T-shaped groove 503 is formed on the top surface of the fixing ring 502. A disc 504 is located inside the T-shaped groove 503. A connecting rod 505 is fixedly installed on the top surface of the disc 504. The top end of the connecting rod 505 is fixed to the top surface inside the housing 1. The fixing ring 502, T-shaped groove 503, disc 504, and connecting rod 505 work together to provide stable support and a rotational foundation for the outer gear ring 501, ensuring the stability of the impurity removal mechanism 5 during operation.
[0027] refer to Figure 2 , Figure 3 and Figure 4 A housing 508 is fixedly installed on the outer surface of the housing 1. A baffle 12 is fixedly installed on one side of the housing 508. Two ventilation mesh plates are fixedly installed inside the baffle 12 on one side of the housing 508. The housing 508 can protect components such as the motor 509 from rainwater corrosion. The baffle 12 can prevent rainwater from splashing into the housing 508. The ventilation mesh plates ensure air circulation inside and outside the housing, which is conducive to heat dissipation of the motor and other equipment and extends the service life of the equipment.
[0028] refer to Figure 2 , Figure 3 and Figure 4 A motor 509 is fixedly installed on the bottom surface of the inner shell 508. A pinion 510 is fixedly installed on the drive end of the motor 509. The pinion 510 meshes with an outer gear ring 501. A push plate 506 is fixedly installed on the bottom surface of the outer gear ring 501. A discharge pipe 507 is fixedly installed on the bottom surface of the processing shell 1. The motor 509 drives the pinion 510 and the outer gear ring 501 to rotate, which in turn causes the push plate 506 to rotate, pushing the impurities intercepted in the processing shell 1 toward the discharge pipe 507. At this time, the personnel open the electrically controlled valve on the discharge pipe 507, which facilitates the discharge of impurities, realizes the automatic impurity removal function, reduces the amount of manual cleaning work, and improves the operating efficiency of the device.
[0029] The implementation principle of an embodiment of an environmentally friendly building rainwater recycling device is as follows: personnel first connect the recycling pipe 2 to the building rainwater discharge system through the conical water inlet hood 8. Then, the rainwater discharged from the building flows into the treatment housing 1 through the recycling pipe 2. After entering, the rainwater comes into contact with the conical filter cylinder 4. Debris is intercepted outside the conical filter cylinder 4, and the rainwater flows into the drainage pipe 3 through the filter holes on the filter cylinder.
[0030] When a large amount of debris accumulates on the side of the conical filter cylinder 4 inside the processing housing 1, the motor 509 in the impurity removal mechanism 5 is activated. The motor 509 drives the pinion 510 to rotate. Because the pinion 510 meshes with the external gear ring 501, the external gear ring 501 drives the push plate 506 to rotate inside the processing housing 1, causing the debris on the side of the conical filter cylinder 4 inside the processing housing 1 to move, so that the rainwater in the debris is discharged through the filter holes. Then, the personnel open the electrically controlled valve on the discharge pipe 507, and the push plate 506 can quickly discharge the debris in the processing housing 1 through the discharge pipe 507, thus achieving efficient treatment of the debris.
[0031] The device uses a conical filter cartridge 4 to filter impurities in rainwater. The filtered impurities are collected in the treatment housing 1 and quickly discharged with the help of the impurity removal mechanism 5, which greatly improves the impurity treatment efficiency. In addition, after the impurities are removed, an external backwash pump can be started to allow liquid to be sprayed out through the backwash pipe 6 and the flushing nozzle 7 to backwash the conical filter cartridge 4 and improve its filtration efficiency.
[0032] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An environmentally friendly building rainwater harvesting device, comprising a treatment shell (1), characterized in that: A recycling pipe (2) is fixedly installed on the top surface of the processing housing (1), a conical filter cylinder (4) is fixedly installed near the middle inside the processing housing (1), and a cleaning mechanism (5) is provided inside the processing housing (1). The impurity removal mechanism (5) includes an external gear ring (501), a fixing ring (502), a T-shaped groove (503), a disc (504), a connecting rod (505), a push plate (506), a discharge pipe (507), a housing (508), a motor (509), and a pinion (510). An external gear ring (501) is located near the top of the processing housing (1). A fixing ring (502) is fixedly installed on the top surface of the external gear ring (501). A T-shaped groove (503) is formed on the top surface of the fixing ring (502). A disc (504) is located inside the T-shaped groove (503). A connecting rod (505) is fixedly installed on the top surface of (504). The top end of the connecting rod (505) is fixed to the inner top surface of the processing housing (1). A housing (508) is fixedly installed on the outer surface of the processing housing (1). A motor (509) is fixedly installed on the inner bottom surface of the housing (508). A pinion (510) is fixedly installed on the drive end of the motor (509). The pinion (510) meshes with an external gear ring (501). A push plate (506) is fixedly installed on the bottom surface of the external gear ring (501). A discharge pipe (507) is fixedly installed on the bottom surface of the processing housing (1).
2. The environmentally friendly building rainwater harvesting device as described in claim 1, characterized in that: A drain pipe (3) is fixedly installed on the bottom surface of the processing housing (1). A backwash pipe (6) is fixedly installed on the outer surface of the drain pipe (3). One end of the backwash pipe (6) extends into the interior of the conical filter cartridge (4). Multiple flushing nozzles (7) are installed in a circumferential array on the outer surface of the backwash pipe (6).
3. The environmentally friendly building rainwater harvesting device as described in claim 1, characterized in that: The end of the recycling pipe (2) away from the treatment shell (1) is fixedly installed with a conical water inlet hood (8), and the top surface of the conical water inlet hood (8) is provided with multiple mounting holes in a circumferential array.
4. The environmentally friendly building rainwater harvesting device as described in claim 2, characterized in that: A purification housing (9) is fixedly installed at the bottom end of the drainage pipe (3), and a connecting drainage pipe (10) is fixedly installed on the bottom surface of the purification housing (9).
5. The environmentally friendly building rainwater harvesting device as described in claim 1, characterized in that: An observation window (11) is fixedly installed on the outer surface of the processing housing (1).
6. The environmentally friendly building rainwater harvesting device as described in claim 1, characterized in that: A water baffle (12) is fixedly installed on one side of the housing (508), and two ventilation mesh plates are fixedly installed inside the water baffle (12) on one side of the housing (508).