Rainwater recycling device
By combining a water collection plate, a permeable plate, and a filter device, the problems of clogging in the collection hopper and damage to the filter device are solved, achieving efficient filtration and storage of rainwater, suitable for watering flowers and flushing toilets.
Patent Information
- Application Number
- CN202520418686.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In existing technologies, the opening at the top of the roof collection hopper is relatively large, allowing impurities such as leaves to enter. If not cleaned for a long time, this can cause blockage and damage to the filtration device.
A rainwater recycling device was designed, including a water collection plate, a permeable plate, a protective net, and a filter device. The protective net is installed on the top of the water collection plate to block impurities, the permeable plate is used to filter rainwater, and the filter device performs filtration between the sedimentation tank and the water storage tank.
It effectively prevents impurities such as leaves from entering the water collection hopper, preventing blockages and damage to the filter device, ensuring that rainwater is cleaner after filtration, and is suitable for watering flowers or flushing toilets.
Smart Images

Figure CN223838180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater treatment technology, specifically to a rainwater recycling device. Background Technology
[0002] Rainwater is a high-quality natural water source, and 60% of daily miscellaneous water use can be addressed by rainwater. With the rapid increase in population and the high-speed economic development, the contradiction between water supply and demand has become a bottleneck restricting my country's industrial and agricultural production and urban development. Human settlements, especially large and medium-sized cities, are often short of water resources. In the current urban rainwater utilization and management system, the utilization efficiency of rainwater is relatively low. For example, rainy weather can lead to urban flooding, and once the rain recedes, the water shortage of the entire city will become prominent. With the continuous development and deepening of concepts such as better management measures and low-impact development ecology, adopting ecological drainage measures for the drainage management and control of urban building roofs, roads and motor vehicle lanes has become an urgent need and trend.
[0003] In existing technology, a collection hopper is placed on the roof to collect rainwater, which is then filtered and stored in a storage tank for watering plants or flushing toilets.
[0004] However, in actual use, since the collection hopper is installed on the roof and its top opening is relatively large, leaves and other impurities will fall into the inside of the collection hopper. If it is not cleaned for a long time, it will cause the collection hopper to become clogged, and in severe cases, it will even damage the filter device. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a rainwater recycling device, which solves the problem that in actual use, because the collection hopper is installed on the roof and its top opening is large, leaves and other impurities fall into the collection hopper and will become clogged if not cleaned for a long time, and in severe cases, the filter device will be damaged.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a rainwater recycling device, including a water storage tank, a sedimentation tank on one side of the water storage tank, a connecting pipe connected to the top of the sedimentation tank, a diversion pipe connected to the end of the connecting pipe away from the sedimentation tank, and a valve installed at the bottom of the water storage tank. The rainwater recycling device also includes a water collection device installed at the end of the diversion pipe away from the connecting pipe; a filtration device installed between the sedimentation tank and the water storage tank; and a connecting device installed inside the sedimentation tank. Rainwater is collected by the water collection device, filtered by the filtration device, and connected to the sedimentation tank by the connecting device.
[0007] Preferably, the water collection device includes a water collection plate connected to the side of the diversion pipe away from the connecting pipe; a permeable plate fixedly connected to the inner wall of the water collection plate; a protective net fixedly connected to the top of the water collection plate; and a fixing device installed at the bottom of the water collection plate. The water collection plate collects rainwater through the cooperation of the protective net and the permeable plate, and the fixing device fixes the water collection plate.
[0008] Preferably, the fixing device includes a trapezoidal plate that is attached to the bottom of the water collection plate; a limiting block is fixedly connected to the top of the trapezoidal plate and its outer wall is fixedly connected to the outer wall of the water collection plate by bolts; wherein the water collection plate is fixed by the cooperation of the trapezoidal plate and the limiting block.
[0009] Preferably, the filtration device includes a purification tank connected to the side of the water storage tank near the sedimentation tank; a water pump output end connected to the side of the purification tank away from the water storage tank and fixedly connected to the upper outer wall of the sedimentation tank near the water storage tank, and an input end connected to the sedimentation tank; several filter plates are provided, all inserted into the inner wall of the purification tank; a mounting bracket is fixedly connected to the bottom of the purification tank and fixedly connected to the outer wall of the water storage tank by bolts; wherein, through the cooperation of the purification tank and the filter plates, the water pumped by the water pump is filtered, and the mounting bracket fixes the purification tank.
[0010] Preferably, the connecting device includes a water pipe, which is located inside the sedimentation tank and extends to the outside of the sedimentation tank and is connected to the input end of the water pump; a float is fixedly connected to the other end of the water pipe; wherein, through the cooperation of the water pipe and the float, the water pump draws water from the sedimentation tank.
[0011] Beneficial effects
[0012] This utility model provides a rainwater recycling device. It has the following beneficial effects: The rainwater recycling device utilizes a combination of a water collection plate, a permeable plate, and a protective net. The protective net, which is arc-shaped, is installed on top of the water collection plate to prevent leaves from accumulating on it. Rainwater drips through the gaps in the net into the interior of the water collection plate, then through the permeable plate, and finally into a sedimentation tank via a connecting pipe for filtration. This prevents impurities such as leaves from entering and damaging the filtration device.
[0013] Through the combined action of the purification tank, water pump, and filter plate, after the water has settled in the sedimentation tank for a certain period of time, the water pump will draw the water from the sedimentation tank into the purification tank, and under the action of the filter plate, impurities and bacteria in the water will be removed, making the water entering the storage tank cleaner. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 for Figure 1 Schematic diagram of the intermediate sedimentation tank and water storage tank;
[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the central diversion pipe, water collection plate, and protective net;
[0017] Figure 4 for Figure 2 A schematic diagram of the intermediate sedimentation tank, purification tank, and water pump.
[0018] In the diagram: 1. Water storage tank; 11. Sedimentation tank; 12. Connecting pipe; 13. Diversion pipe; 14. Valve; 2. Water collection device; 21. Water collection plate; 22. Permeable plate; 23. Protective net; 24. Fixing device; 241. Trapezoidal plate; 242. Limiting block; 3. Filtration device; 31. Purification tank; 32. Water pump; 33. Filter plate; 34. Mounting frame; 4. Connecting device; 41. Water pipe; 42. Float. Detailed Implementation
[0019] 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.
[0020] In actual use, because the collection hopper is installed on the roof, its top opening is relatively large, and impurities such as leaves will fall into the inside of the collection hopper. If it is not cleaned for a long time, it will cause the collection hopper to become clogged, and in severe cases, it will even damage the filter device.
[0021] In view of this, the present invention provides a rainwater recycling device, which solves the problem that in actual use, because the collection hopper is installed on the roof and its top opening is large, leaves and other impurities will fall into the inside of the collection hopper. If it is not cleaned for a long time, it will cause the collection hopper to become clogged, and in severe cases, it will even damage the filter device.
[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.
[0023] Example 1: By Figure 1-4As can be seen, the rainwater recycling device includes a water storage tank 1, a sedimentation tank 11 is provided on one side of the water storage tank 1, a connecting pipe 12 is connected to the top of the sedimentation tank 11, a diversion pipe 13 is connected to the end of the connecting pipe 12 away from the sedimentation tank 11, and a valve 14 is installed at the bottom of the water storage tank 1. The rainwater recycling device also includes a water collection device 2, a filter device 3, and a connecting device 4. The water collection device 2 is installed at the end of the diversion pipe 13 away from the connecting pipe 12; the filter device 3 is installed between the sedimentation tank 11 and the water storage tank 1; and the connecting device 4 is installed inside the sedimentation tank 11. Rainwater is collected by the water collection device 2, the rainwater is filtered by the filter device 3, and the connecting device 4 connects the filter device 3 to the sedimentation tank 11.
[0024] In the specific implementation process, it is worth noting that multiple water collection devices 2 can be set up, and each water collection device 2 is connected together through a diversion pipe 13 and enters the sedimentation tank 11 through a connecting pipe 12. The water settles in the sedimentation tank 11, causing impurities in the water to accumulate at the bottom of the sedimentation tank 11, which makes it convenient for the filter device 3 to filter the water. The type of valve 14 is not limited, and a ball valve can be used for control. The ball valve has good sealing performance. When using the water in the storage tank 1, the valve 14 can be opened for use.
[0025] Furthermore, the water collection device 2 includes a water collection plate 21, a permeable plate 22, a protective net 23, and a fixing device 24. The water collection plate 21 is connected to the side of the diversion pipe 13 away from the connecting pipe 12; the permeable plate 22 is fixedly connected to the inner wall of the water collection plate 21; the protective net 23 is fixedly connected to the top of the water collection plate 21; and the fixing device 24 is installed at the bottom of the water collection plate 21. Through the cooperation of the protective net 23 and the permeable plate 22, the water collection plate 21 collects rainwater, and the fixing device 24 fixes the water collection plate 21.
[0026] In the specific implementation process, it is worth noting that the top of the water collection plate 21 is provided with a large opening and the edge of the opening is sloping, which allows water to flow into the water collection plate 21 quickly. The permeable plate 22 is made of a special porous material with a pore size that has been precisely calculated and screened. This ensures that rainwater can quickly permeate through while effectively intercepting larger particulate impurities in the rainwater, such as slightly larger sand and gravel. The protective net 23 is generally made of fine mesh woven from stainless steel with moderate mesh size. It is mainly used to block larger debris, such as leaves, branches, and plastic bottles, from entering the interior of the water collection plate 21. The fixing device 24 is an important supporting structure for the stable operation of the water collection plate 21.
[0027] Furthermore, the fixing device 24 includes a trapezoidal plate 241 and a limiting block 242. The trapezoidal plate 241 is attached to the bottom of the water collection plate 21; the limiting block 242 is fixedly connected to the top of the trapezoidal plate 241, and its outer wall is fixedly connected to the outer wall of the water collection plate 21 by bolts; wherein, the water collection plate 21 is fixed by the cooperation of the trapezoidal plate 241 and the limiting block 242.
[0028] In the specific implementation process, it is worth noting that the top of the trapezoidal plate 241 has a certain degree of inclination, which can make the water collection plate 21 tilt to one side, so that the water in the water collection plate 21 flows to one side, and the trapezoidal plate 241 and the water collection plate 21 are fixed together by the limiting block 242, which makes it more stable when installing multiple water collection devices 2.
[0029] Specifically, when using this rainwater recycling device, a certain number of water collection devices 2 are selected according to the size of the roof. When installing the water collection devices 2, a trapezoidal plate 241 of appropriate length is selected to fix the water collection devices 2, and the tilt direction of each water collection device 2 is the same. In this way, the water collected by the water collection devices 2 flows to one side. A diversion pipe 13 of appropriate length is used to connect each water collection device 2 together. In this way, the rainwater that falls into the water collection plate 21 through the protective net 23 will enter the interior of the water collection plate 21 through the permeable plate 22, and flow into the connecting pipe 12 through the diversion pipe 13, and then enter the interior of the sedimentation tank 11. After settling in the sedimentation tank 11 for a certain period of time, the filter device 3 will filter the water, and the filtered water will be stored in the water storage tank 1. When using it, simply open the valve 14.
[0030] The devices and components in this technical solution can be installed in appropriate positions according to actual needs. The height difference between the sedimentation tank 11 and the diversion pipe 13 is sufficient to achieve rainwater collection and utilization. Of course, in special cases, a power device (pump) can be installed between the two to solve the problem of insufficient height difference and ensure smooth collection and flow of rainwater. For example, the water collection device 2 can be installed under the vegetation ditch, integrated into the rain garden, or integrated with the permeable paving to improve the applicability of the rainwater recycling device. This embodiment and the accompanying drawings only provide one possible implementation scheme and are not all embodiments.
[0031] Example 2: From Figure 1-4As can be seen, the filtration device 3 includes a purification box 31, a water pump 32, a filter plate 33, and a mounting bracket 34. The purification box 31 is connected to the side of the water storage tank 1 near the sedimentation tank 11. The output end of the water pump 32 is connected to the side of the purification box 31 away from the water storage tank 1 and is fixedly connected to the upper part of the outer wall of the sedimentation tank 1 near the water storage tank 1, and the input end is connected to the sedimentation tank 11. Several filter plates 33 are provided, all inserted into the inner wall of the purification box 31. The mounting bracket 34 is fixedly connected to the bottom of the purification box 31 and is fixedly connected to the outer wall of the water storage tank 1 by bolts. The water pump 32 filters the water drawn by the water pump 32 through the cooperation of the purification box 31 and the filter plate 33. The mounting bracket 34 fixes the purification box 31. The model of the water pump 32 is not limited, as long as it meets the actual use requirements, and it is powered by an external power source.
[0032] In the specific implementation process, it is worth noting that these filter plates 33 are made of materials with different materials and filtration precision to meet the graded filtration requirements for various impurities in rainwater. For example, the filter plate 33 near the water inlet uses a filter screen with a larger pore size to intercept larger floating objects in the rainwater, such as leaves and branches; while the filter plate 33 near the water outlet uses a finer filter screen, and may even contain an activated carbon filter layer or an ion exchange resin layer to further remove fine particulate impurities, odors, heavy metal ions, and some organic matter in the rainwater. The edges of each filter plate 33 are specially treated and equipped with sealing rubber gaskets. When they are inserted into the inner wall of the purification tank 31, they can form a good sealing effect, ensuring that rainwater can only pass through the filter medium of the filter plate 33 and will not leak from the gap between the plate and the tank wall, thereby ensuring the high efficiency and integrity of filtration. The purified water directly enters the water storage tank 1 for storage and is used directly.
[0033] Furthermore, the connecting device 4 includes a water pipe 41 and a float 42. The water pipe 41 is located inside the sedimentation tank 11, and one end of the water pipe extending to the outside of the sedimentation tank 11 is connected to the input end of the water pump 32. The float 42 is fixedly connected to the other end of the water pipe 41. Through the cooperation of the water pipe 41 and the float 42, the water pump 32 draws water from the sedimentation tank 11.
[0034] In the specific implementation process, it is worth noting that the float 42 is usually made of a material with a density less than water and good weather resistance, such as high-strength foam plastic or lightweight rubber composite material. Its shape is mostly designed as spherical or cylindrical, which can provide relatively stable buoyancy in water. The water pipe 41 has a certain degree of flexibility, and under the action of the float 42, the water inlet of the water pipe 41 is always slightly below the water surface. This can prevent the water pump 32 from sucking up impurities that have settled at the bottom of the tank when drawing water.
[0035] Specifically, based on the above embodiment, when water enters the sedimentation tank 11, the float 42 will cause the water pipe 41 to float on the water surface. After sedimentation for a certain period of time, the water pump 32 will suck water into the purification tank 31. After being filtered and purified by the filter plate 33, the water will enter the storage tank 1 and can be used for watering flowers or flushing toilets.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rainwater recycling device, comprising a water storage tank (1), characterized in that: A sedimentation tank (11) is provided on one side of the water storage tank (1). A connecting pipe (12) is connected to the top of the sedimentation tank (11). A diversion pipe (13) is connected to the end of the connecting pipe (12) away from the sedimentation tank (11). A valve (14) is installed at the bottom of the water storage tank (1). The rainwater recycling device also includes: A water collection device (2) is installed at the end of the diversion pipe (13) away from the connecting pipe (12); A filter device (3) is installed between the sedimentation tank (11) and the water storage tank (1); The connecting device (4) is installed inside the sedimentation tank (11); The rainwater is collected by the water collection device (2), filtered by the filtration device (3), and connected by the connecting device (4) to the sedimentation tank (11).
2. The rainwater recycling device according to claim 1, characterized in that: The water collection device (2) includes: The water collection plate (21) is connected to the side of the diversion pipe (13) away from the connecting pipe (12); A permeable plate (22) is fixedly connected to the inner wall of the water collection plate (21); A protective net (23) is fixedly connected to the top of the water collection plate (21); A fixing device (24) is installed at the bottom of the water collection plate (21); The protective net (23) and the permeable plate (22) work together to collect rainwater through the water collection plate (21), and the fixing device (24) fixes the water collection plate (21).
3. The rainwater recycling device according to claim 2, characterized in that: The fixing device (24) includes: Trapezoidal plate (241) is attached to the bottom of water collection plate (21); The limiting block (242) is fixedly connected to the top of the trapezoidal plate (241), and its outer wall is fixedly connected to the outer wall of the water collection plate (21) by bolts; The water collection plate (21) is fixed by the cooperation of the trapezoidal plate (241) and the limiting block (242).
4. The rainwater recycling device according to claim 1, characterized in that: The filter device (3) includes: The purification box (31) is connected to the side of the water storage tank (1) near the sedimentation tank (11); The water pump (32) has its output end connected to the side of the purification tank (31) away from the water storage tank (1) and is fixedly connected to the upper outer wall of the sedimentation tank (11) near the water storage tank (1), and its input end is connected to the sedimentation tank (11). Several filter plates (33) are provided, all of which are inserted into the inner wall of the purification box (31); The mounting bracket (34) is fixedly connected to the bottom of the purification box (31) and fixedly connected to the outer wall of the water storage tank (1) by bolts; The water pumped by the water pump (32) is filtered by the combination of the purification box (31) and the filter plate (33), and the mounting bracket (34) fixes the purification box (31).
5. The rainwater recycling device according to claim 1, characterized in that: The connecting device (4) includes: A water pipe (41) is installed inside the sedimentation tank (11), and one end of the pipe extends to the outside of the sedimentation tank (11) and is connected to the input end of the water pump (32). A float (42) is fixedly connected to the other end of a water pipe (41); The water pump (32) draws water into the sedimentation tank (11) through the cooperation of the water pipe (41) and the float (42).