An energy-saving rainwater harvesting device for building water supply and drainage construction.
By designing the flow guiding and filtering components, the problem of incomplete impurity separation in existing rainwater harvesting devices has been solved, achieving efficient solid-liquid separation and secondary filtration of rainwater, thus improving the quality of rainwater collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 吕婷
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-26
AI Technical Summary
During the cleaning process of existing rainwater harvesting devices, severely corroded impurities are easily broken into smaller impurities, resulting in inefficient solid-liquid separation and filtration, which affects the quality of rainwater.
The system employs a flow guiding component and a filtration component, including a flow guiding plate, a filter cartridge, a servo motor-driven roller, and a conveyor belt, to achieve automatic separation and secondary filtration of impurities. Rainwater is introduced through the flow guiding plate, and the conveyor belt transports impurities to the solid collection box, where the filter cartridge performs secondary filtration, thereby improving the quality of rainwater.
It achieves efficient solid-liquid separation and secondary filtration of rainwater, reduces residual impurities, and improves the purity and effectiveness of rainwater collection.
Smart Images

Figure CN224281438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rainwater harvesting devices, specifically a rainwater harvesting and energy-saving device for building water supply and drainage construction. Background Technology
[0002] Rainwater harvesting systems collect rainwater by installing collection devices on building roofs, which then lead the rainwater into storage facilities. After filtration, the rainwater is used for daily purposes. This type of system is suitable for buildings in urban environments and can play a significant role in energy conservation. By collecting and utilizing rainwater, it effectively achieves the goals of resource conservation and reduces urban drainage pressure.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN222009053U) discloses an energy-saving rainwater collection device for building water supply and drainage construction. The device includes a housing, two filter frames, and a rotating motor. Each filter frame is snapped into the housing. Two rotating shafts are rotatably connected inside the housing. Each shaft, near the rotating motor, passes through the housing and has a connecting wheel fixedly installed. A belt is fitted inside both connecting wheels. A turntable is fixedly installed at the end of each shaft away from the rotating motor. A connecting column is fixedly installed on the back of each turntable. A movable frame is provided on the back of each turntable. The inner wall of each movable frame is slidably connected to the outer surface of the connecting column. A pin holder is fixedly installed on the outer surface of each movable frame. This utility model, by incorporating a housing, filter frames, rotating motor, rotating shafts, connecting wheels, belts, turntables, connecting columns, movable frames, and pin holders, achieves the purpose of automatically cleaning impurities clogging the filter frames.
[0004] While the aforementioned patent can clear impurities from the filter screen, some severely corroded impurities break during the lifting process, causing them to disperse into smaller particles that fall back into the rainwater. This prevents the device from efficiently separating solids and liquids during filter cleaning and from adequately filtering the collected rainwater, resulting in a high impurity content and affecting its subsequent use.
[0005] Therefore, this utility model provides an energy-saving rainwater collection device for building water supply and drainage construction to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This utility model provides an energy-saving rainwater collection device for building water supply and drainage construction, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, the present invention provides the following technical solution: a rainwater collection and energy-saving device for building water supply and drainage construction, comprising a flow guiding component, wherein the flow guiding component comprises a collection frame, a flow guiding plate is provided at the top of the collection frame, a support cylinder is provided at the bottom of the collection frame, and a first cover plate is fixedly connected to one end of the collection frame;
[0010] The filter assembly includes a first roller and a second roller. The first roller and the second roller are externally connected by two sets of conveyor belts. One end of the first roller is fixedly connected to a servo motor, and the servo motor is fixedly connected to the outer wall of the collection frame.
[0011] A solid collection box and a rainwater collection box are provided, with the solid collection box located below the first cover plate and the rainwater collection box located below the support cylinder.
[0012] As a preferred technical solution of this application, the upper surface of the guide plate is inclined towards the inside of the collection frame, the first cover plate covers the top of the solid collection box, and a second cover plate is inserted into the center of the guide plate.
[0013] As a preferred technical solution of this application, the bottom of the support cylinder is integrally formed with a support ring, a filter cylinder is inserted into the inside of the support cylinder, and a limit ring is provided at the top of the filter cylinder, and the diameter of the limit ring is equal to the diameter of the support ring.
[0014] As a preferred technical solution of this application, a lifting frame is fixedly connected to the top of the filter cylinder, and the lifting frame is used to lift the filter cylinder. The filter cylinder is positioned below the second cover plate, and the diameter of the second cover plate is larger than the diameter of the filter cylinder.
[0015] As a preferred technical solution of this application, the axial height of the second roller is greater than that of the first roller, and the end of the conveyor belt near the second roller is located above the centerline of the solid collection box. The filter assembly is used to filter large-sized impurities and transports the impurities to the solid collection box for collection.
[0016] As a preferred technical solution of this application, the conveyor belt is symmetrically arranged in two sets, and the distance between the two sets of conveyor belts is greater than the diameter of the filter cylinder. The outer surface of each set of conveyor belts is uniformly distributed with baffles. The two ends of the first roller and the second roller are rotatably connected to the collection frame through ball bearings.
[0017] (III) Beneficial Effects
[0018] The beneficial effects of this application are as follows:
[0019] 1. This utility model, through the setting of the filter component, uses a rotating mesh conveyor belt to move the impurities filtered on its upper surface, while avoiding the residue of impurities that could cause blockages and affect rainwater collection. The impurities on the surface of the conveyor belt are transported and fall into the solid collection box for collection, thereby achieving solid-liquid separation in the rainwater collection process.
[0020] 2. This utility model, through the setting of the filter cylinder in the flow guiding component, can further filter the filtered rainwater a second time. The filter cylinder further collects and filters fine impurities a second time, thereby improving the quality of rainwater collection and reducing the residue of impurities. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the present utility model;
[0022] Figure 2 This is a schematic diagram of the centerline cross-sectional structure of the rainwater collection box of this utility model;
[0023] Figure 3 For the present utility model Figure 2 A magnified structural diagram of A in the middle;
[0024] Figure 4 This is a schematic diagram of the overall structure of the filter assembly of this utility model;
[0025] Figure 5 This is a schematic diagram of a partial explosion of the flow guiding component of this utility model.
[0026] In the picture:
[0027] 1. Flow guiding assembly; 11. Collection frame; 12. Flow guiding plate; 13. First cover plate; 14. Second cover plate; 15. Support cylinder; 16. Filter cylinder; 17. Lifting frame; 2. Filter assembly; 21. Servo motor; 22. First roller; 23. Second roller; 24. Conveyor belt; 25. Baffle bar; 3. Solid collection box; 4. Rainwater collection box. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figure 1-5As shown, this utility model provides a rainwater collection and energy-saving device for building water supply and drainage construction, including a flow guiding component 1, which includes a collection frame 11, a flow guiding plate 12 at the top of the collection frame 11, a support cylinder 15 at the bottom of the collection frame 11, and a first cover plate 13 fixedly connected to one end of the collection frame 11; and a filter component 2, which includes a first roller 22 and a second roller 23, with two sets of conveyor belts 24 externally connecting the first roller 22 and the second roller 23. A servo motor 21 is fixedly connected to one end of the first roller 22, and the servo motor 21 is fixedly connected to... The outer wall of the collection frame 11; solid collection box 3 and rainwater collection box 4. The solid collection box 3 is located below the first cover plate 13, and the rainwater collection box 4 is located below the support cylinder 15. Through the setting of the filter assembly 2, the servo motor 21 drives the first roller 22 to rotate, thereby driving the conveyor belt 24 to rotate in a cycle. Thus, when the guide assembly 1 collects rainwater, solid impurities are filtered through the conveyor belt 24, and the impurities fall into the solid collection box 3 for collection as they are transported by the conveyor belt 24. After the rainwater is filtered, it enters the rainwater collection box 4.
[0030] Furthermore, the upper surface of the guide plate 12 is designed to be inclined towards the inside of the collection frame 11. The first cover plate 13 covers the top of the solid collection box 3. The second cover plate 14 is inserted into the center of the guide plate 12. The bottom of the support cylinder 15 is integrally formed with a support ring. The filter cylinder 16 is inserted into the inside of the support cylinder 15. The top of the filter cylinder 16 is provided with a limiting ring, and the diameter of the limiting ring is equal to the diameter of the support ring. Through the setting of the filter cylinder 16, the filtered rainwater can be filtered a second time, thereby removing the fine impurities remaining in the rainwater and effectively improving the quality of rainwater collection.
[0031] Furthermore, a lifting frame 17 is fixedly connected to the top of the filter cylinder 16, and the lifting frame 17 is used to lift the filter cylinder 16. The filter cylinder 16 is positioned below the second cover plate 14. The diameter of the second cover plate 14 is larger than the diameter of the filter cylinder 16. The second cover plate 14 can cover and protect the top of the filter cylinder 16, preventing large impurities from entering the interior of the filter cylinder 16 and causing blockage, which would affect the water permeability of the filter cylinder 16. The circumferential filtration structure of the filter cylinder 16 also ensures its water permeability.
[0032] Furthermore, the axial height of the second roller 23 is greater than that of the first roller 22, and the end of the conveyor belt 24 near the second roller 23 is located above the centerline of the solid collection box 3. The filter assembly 2 is used to filter large-sized impurities and transport them to the solid collection box 3 for collection. Two sets of conveyor belts 24 are symmetrically arranged, and the distance between the two sets of conveyor belts 24 is greater than the diameter of the filter cylinder 16. The outer surface of each set of conveyor belts 24 is evenly distributed with baffles 25. Both ends of the first roller 22 and the second roller 23 are rotatably connected to the collection frame 11 through ball bearings. The conveyor belt 24 is inclined to prevent impurities from falling off the surface of the conveyor belt 24 due to rain impact. At the same time, the baffles 25 improve the stability of impurity transport. The conveyor belt 24 has a mesh structure to ensure the passage of rainwater.
[0033] Working principle: When the device collects rainwater, the servo motor 21 is started, causing the first roller 22 to rotate and drive the conveyor belt 24 to rotate. When the rainwater passes through the conveyor belt 24 for collection, the impurities carried by the rainwater will be filtered by the conveyor belt 24, and the filtered impurities will be transported and guided to the interior of the solid collection box 3 for collection. The filtered rainwater is guided through the support cylinder 15 to the interior of the filter cylinder 16, and after secondary filtration by the filter cylinder 16, it is collected into the interior of the rainwater collection box 4.
[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A rainwater harvesting and energy-saving device for building water supply and drainage construction, characterized in that: The system includes a flow guiding component (1), which includes a collection frame (11). A flow guiding plate (12) is provided on the top of the collection frame (11), and a support cylinder (15) is provided on the bottom of the collection frame (11). A first cover plate (13) is fixedly connected to one end of the collection frame (11). The filter assembly (2) includes a first roller (22) and a second roller (23). The first roller (22) and the second roller (23) are connected by two sets of conveyor belts (24). One end of the first roller (22) is fixedly connected to a servo motor (21), and the servo motor (21) is fixedly connected to the outer wall of the collection frame (11). Solid collection box (3) and rainwater collection box (4), the solid collection box (3) being located below the first cover plate (13) and the rainwater collection box (4) being located below the support cylinder (15).
2. The rainwater harvesting and energy-saving device for building water supply and drainage construction according to claim 1, characterized in that: The upper surface of the guide plate (12) is inclined toward the inside of the collection frame (11), the first cover plate (13) covers the solid collection box (3), and a second cover plate (14) is inserted above the center of the guide plate (12).
3. The rainwater harvesting and energy-saving device for building water supply and drainage construction according to claim 2, characterized in that: The bottom of the support cylinder (15) is integrally formed with a support ring, and a filter cylinder (16) is inserted into the inside of the support cylinder (15). A limit ring is provided at the top of the filter cylinder (16), and the diameter of the limit ring is equal to the diameter of the support ring.
4. The rainwater harvesting and energy-saving device for building water supply and drainage construction according to claim 3, characterized in that: The top of the filter cylinder (16) is fixedly connected to a lifting frame (17), and the lifting frame (17) is used to lift the filter cylinder (16). The filter cylinder (16) is located below the second cover plate (14), and the diameter of the second cover plate (14) is larger than the diameter of the filter cylinder (16).
5. The rainwater harvesting and energy-saving device for building water supply and drainage construction according to claim 1, characterized in that: The axial height of the second roller (23) is greater than that of the first roller (22), and the end of the conveyor belt (24) near the second roller (23) is located above the center line of the solid collection box (3). The filter assembly (2) is used to filter large-sized impurities and transports the impurities to the solid collection box (3) for collection.
6. The rainwater harvesting and energy-saving device for building water supply and drainage construction according to claim 5, characterized in that: The conveyor belts (24) are arranged in two symmetrical groups, and the distance between the two groups of conveyor belts (24) is greater than the diameter of the filter cylinder (16). The outer surface of each group of conveyor belts (24) is evenly distributed with baffles (25). The two ends of the first roller (22) and the second roller (23) are rotatably connected to the collection frame (11) through ball bearings.
Citation Information
Patent Citations
Rainwater collection energy-saving device for building water supply and drainage construction
CN222009053U