Rainwater collecting system

Abstract

The invention provides a rainwater collection system. The rainwater collection system comprises a downpipe; each second rainwater collecting device is connected into a first hole below the corresponding first rainwater filtering plate in an embedded mode, and rainwater entering the second rainwater collecting devices is collected after being filtered for the first time through the first rainwater filtering plates for the second time. Only when the rainwater collected in the second rainwater collecting device reaches a preset amount, the rainwater collected in the second rainwater collecting device is injected into the rainwater collecting cavity of the first rainwater collecting device. According to the rainwater collecting system, by means of the characteristic that the precipitation amount in the rainy season of an island area is large, it is guaranteed that blocking does not occur in the water storage process through the rainwater filtering plates of two specifications; in the rainfall process, downward pressure is generated through the dead weight of rainwater to automatically open the second rainwater collection device to lead to a valve structure of the second rainwater collection device to complete rainwater collection, the valve structure is in a closed state in other situations, adaptability is high, blockage can be reduced as much as possible, the rainwater collection efficiency is improved, cost is low, and application and popularization can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a rainwater collection system. Background Art

[0002] Freshwater resources are scarce in island areas, and rainwater is an important source of freshwater. With the economic development and population increase in island areas, the demand for the utilization of rainwater resources is becoming increasingly urgent.

[0003] Currently, rooftop rainwater harvesting is a common method of collecting rainwater on islands. This method primarily utilizes the large rooftop areas of residential and public buildings, which effectively capture rainwater. Rooftop structures such as rain gutters and downspouts are typically installed to direct rainwater to surface or underground water storage facilities. For example, some island resorts have comprehensive rainwater collection systems installed on their hotel rooftops. This collected water is used for non-potable water needs such as landscaping irrigation and toilet flushing.

[0004] Common rainwater collection systems for buildings typically use filters installed on simple drainage channels and pipes. However, the unique environment of island regions presents numerous challenges for rainwater collection. Factors such as humid weather, strong winds, waves, and abundant vegetation can easily lead to blockages in traditional rainwater collection systems, severely impacting their efficiency.

[0005] Therefore, how to reduce the blockage of the rainwater collection system and improve the efficiency of rainwater collection has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide a rainwater collection system, which can reduce the blockage of the rainwater collection system and improve the efficiency of rainwater collection.

[0007] In order to solve the above technical problems, the present invention provides a rainwater collection system, which includes:

[0008] a downspout;

[0009] a first rainwater collection device comprising: a rainwater collection chamber and a plurality of first openings equidistantly formed on a top surface of the rainwater collection chamber, wherein an inner bottom surface of the rainwater collection chamber is in communication with a port of the downpipe;

[0010] a plurality of first rainwater filter plates, each of which is embedded in the top of a first hole on the top surface of the rainwater collection chamber to perform a primary filtration on rainwater entering the first hole;

[0011] A plurality of second rainwater collecting devices, each of which is embedded in a first hole below a first rainwater filter plate, and collects rainwater entering the second rainwater collecting device after the first filtration by the first rainwater filter plate, and only when the rainwater collected in the second rainwater collecting device reaches a predetermined amount, the rainwater collected therein is injected into the rainwater collection cavity of the first rainwater collecting device.

[0012] Optionally, in the rainwater collection system, each second rainwater collection device includes: a valve structure and a second rainwater filter plate, wherein the valve structure includes: a spring, a fixing rod and a valve plate, and the fixing rod is vertically fixed to one side of the valve plate; one end of the spring is fixed to the bottom of the first rainwater filter plate, and the other end passes through the second rainwater filter plate and is fixed on the fixing rod; the valve plate switches the bottom of the first opening between closing and opening under the drive of the spring; the second rainwater filter plate is arranged in the first opening below the first rainwater filter plate.

[0013] Optionally, in the rainwater collection system, each second rainwater collection device further comprises: a plurality of pairs of filter plate pads symmetrically embedded in the inner wall of the first hole, and the second rainwater filter plate is placed on the filter plate pads.

[0014] Optionally, in the rainwater collection system, the second rainwater filter plate is a medium-caliber rainwater filter plate.

[0015] Optionally, in the rainwater collection system, the valve structure further includes: a screw cap and a nut, the nut is fixedly connected to the spring, and the screw cap and the nut cooperate to fix the spring to the bottom of the first rainwater filter plate.

[0016] Optionally, in the rainwater collection system, the inner bottom surface of the rainwater collection chamber is an inclined surface, and the inner bottom surface at the lowest point of the rainwater collection chamber is connected to the port of the downpipe.

[0017] Optionally, in the rainwater collection system, a plurality of sedimentation tanks are provided at intervals on the inclined surface of the rainwater collection chamber to filter the rainwater in the rainwater collection chamber three times.

[0018] Optionally, in the rainwater collection system, the cross-section of each sedimentation tank is triangular.

[0019] Optionally, in the rainwater collection system, the first rainwater filter plate is a coarse equal-caliber rainwater filter plate.

[0020] Optionally, in the rainwater collection system, the first hole is in the shape of an elongated strip.

[0021] The rainwater collection system provided by the present invention has at least the following beneficial effects:

[0022] 1) Multi-layer filtration structure design: Effectively blocks debris from entering the rainwater collection system, reducing the probability of clogging. The first rainwater filter plate (coarse and medium caliber) and the second rainwater filter plate (medium caliber) filter debris of different sizes, filtering most fallen leaves, gravel, and fine sand. This prevents the valve plate of the valve structure from springing down and becoming unable to close due to the accumulation of impurities such as gravel and fine sand. In addition, a sedimentation tank on the bottom plate of the first filter plate further precipitates even finer impurities.

[0023] 2) Normally closed valve structure design: During rainfall, the downward pressure generated by the weight of rainwater automatically opens the second rainwater collection device to complete rainwater collection. In other cases, the valve structure is in a closed state. It has strong adaptability, can minimize blockage, is low-cost, and can be widely used.

[0024] 3) Easy maintenance and low cost: The components of the rainwater collection system are simply connected, making it easy to disassemble and replace aging parts. The overall structural design is reasonable and uses common materials, effectively reducing production and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0026] Figure 1 is a structural diagram of a rainwater collection system according to an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a second rainwater collection device in one embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the plan layout of the rainwater collection system of the present invention after it is constructed on the roof or outdoor corridor.

[0029] In the picture:

[0030] 1-first rainwater collecting device; 2-second rainwater collecting device; 3-downpipe; 4-sedimentation tank; 5-first rainwater filter plate; 6-screw cap; 7-nut; 8-second rainwater filter plate; 9-filter plate spacer; 10-spring; 11-valve plate; 12-fixing rod. DETAILED DESCRIPTION

[0031] The following is a detailed description of the rainwater collection system proposed by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clarify the purpose of illustrating the embodiments of the present invention.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0033] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of an invention, "plurality" means two or more, unless otherwise specifically defined.

[0035] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] After studying existing rainwater collection systems, we discovered that the primary reason for clogging is that dust and debris are blown into the drainage channel by wind when it's not raining. Over time, this can lead to clogging at the connection between the drainage channel and the drainage pipe, thus affecting drainage efficiency. Based on this discovery, we proposed the design of the rainwater collection system of the present invention, the details of which are as follows.

[0037] Please refer to Figures 1 to 3The rainwater collection system includes: a downpipe 3, a first rainwater collection device 1, a plurality of first rainwater filter plates 5, and a plurality of second rainwater collection devices 2. The first rainwater collection device 1 includes a rainwater collection chamber and a plurality of first openings equidistantly defined on the top surface of the rainwater collection chamber. The inner bottom surface of the rainwater collection chamber is connected to the port of the downpipe 3. Each of the plurality of first rainwater filter plates 5 is embedded in the top of a first opening on the top surface of the rainwater collection chamber to perform a primary filtration on rainwater entering the first opening. Each of the plurality of second rainwater collection devices 2 is embedded in the first opening below a first rainwater filter plate 5 to perform a secondary filtration on rainwater collected after the primary filtration by the first rainwater filter plate 5. The rainwater collected in the second rainwater collection device 2 is injected into the rainwater collection chamber of the first rainwater collection device 1 only when the rainwater collected in the second rainwater collection device 2 reaches a predetermined amount. In this embodiment, the first opening is preferably an elongated opening.

[0038] The rainwater collection system of the present invention can take advantage of the high rainfall in the rainy season in island areas and ensure that no clogging occurs during the water storage process through two specifications of rainwater filter plates. The first rainwater filter plate 5 and the second rainwater filter plate 8 can filter most fallen leaves, stones, fine sand, etc., avoiding the valve plate of the valve structure from spring-falling and being unable to close due to the accumulation of impurities such as stones and fine sand. During rainfall, the downward pressure generated by the self-weight of rainwater automatically opens the valve structure leading to the second rainwater collection device 2 to complete rainwater collection. In other cases, the valve structure remains closed. The system has strong adaptability, can minimize clogging, improve rainwater collection efficiency, is low-cost, and can be widely used.

[0039] Please refer to Figure 2 In this embodiment, each second rainwater collection device 2 includes: a valve structure and a second rainwater filter plate 8, wherein the valve structure includes: a spring 10, a fixing rod 12, and a valve plate 11, wherein the fixing rod 12 is vertically fixed to one side of the valve plate 11; one end of the spring 10 is fixed to the bottom of the first rainwater filter plate 5, and the other end passes through the second rainwater filter plate 8 and is fixedly sleeved on the fixing rod 12; the valve plate 11 switches between closing and opening the bottom of the first opening under the drive of the spring 10; the second rainwater filter plate 8 is disposed in the first opening below the first rainwater filter plate 5. Preferably, the nut 7 is welded to the spring 10, the spring 10 is welded to the fixing rod 12, and the fixing rod 12 is welded to the top surface of the valve plate 11.

[0040] Specifically, the valve structure in the second rainwater collection device 2 works as follows: the spring 10 pushes or pulls the valve plate 11 connected thereto by the force generated by its own elastic deformation, thereby switching the closed and open states of the bottom of the first opening. When the amount of rainwater collected in the second rainwater collection device 2 reaches a predetermined amount, the pressure on the valve plate 11 (i.e., the pressure generated by the weight of the rainwater carried thereon) exceeds the rebound force of the spring 10, and the valve plate 11 flips over, and the bottom of the first opening is in an open state. The rainwater collected therein flows into the rainwater collection chamber of the first rainwater collection device 1, and then flows into the downpipe 3, so that the rainwater can be smoothly discharged to the next level drainage system or water tank. After the rainwater collected in the second rainwater collection device 2 is injected into the rainwater collection chamber at one time, the spring 10 recovers its deformation and drives the valve plate 11 to block the bottom of the first opening, so that the bottom of the first opening is in a closed state.

[0041] In this embodiment, the components of the rainwater collection system are made of corrosion-resistant materials to adapt to the island environment and can operate stably in the humid, high-salinity, and windy island climate, ensuring long-term and effective rainwater collection.

[0042] Preferably, each second rainwater collection device 2 in this embodiment further includes: a plurality of pairs of filter plate spacers symmetrically embedded in the inner wall of the first opening, with the second rainwater filter plate 8 resting on the pair of filter plate spacers. The second rainwater filter plate 8 is parallel to the first rainwater filter plate 5. The difference between the second rainwater filter plate 8 and the first rainwater filter plate 5 is that the filter apertures of the second rainwater filter plate 8 are smaller than the filter apertures of the first rainwater filter plate 5. The first rainwater filter plate 5 is a coarse-caliber rainwater filter plate, while the second rainwater filter plate 8 is a medium-caliber rainwater filter plate. Therefore, the sizes of the materials that can be filtered by each are different. For example, the first rainwater filter plate 5 typically filters fallen leaves, while the second rainwater filter plate 8 typically filters stones. Smaller fine sand and the like will flow through the first and second rainwater filter plates 5, 8, along with the accumulated water, and ultimately enter the first rainwater collection device 1. Here, the first rainwater filter plate 5 and the second rainwater filter plate 8 can filter most of the fallen leaves, stones, fine sand, etc., to prevent the valve plate of the valve structure from falling down due to the accumulation of impurities such as stones and fine sand, and being unable to close.

[0043] Since the rainwater collection system of the present invention is mainly set up on an island, its wind and sand content is not large compared to a continental climate, so after two filtrations, it can be ensured that the main debris that will cause the system to be blocked is filtered out. Of course, in order to ensure the better working performance of the rainwater collection system, workers can be asked to regularly clean the debris filtered out on the first filter plate and the second filter plate.

[0044] Furthermore, the valve structure further includes a nut 6 and a nut 7, wherein the nut 7 is fixedly connected to the spring 10. The nut 6 and the nut 7 cooperate to secure the spring 10 to the bottom of the first rainwater filter plate 5. When drainage is required, the valve structure opens the valve plate 11 by the pressure exerted by the weight of rainwater. Normally, the valve structure remains normally closed, minimizing the possibility of clogging. Components such as the first rainwater filter plate 5 (coarse and equal caliber), the second rainwater filter plate 8 (medium caliber), the nut 6, and the nut 7 can be replaced as they age, resulting in easy maintenance, low cost, and excellent performance, making it suitable for widespread use.

[0045] Better, such as Figure 1 As shown, the inner bottom surface of the rainwater collection chamber is an inclined surface, and the inner bottom surface at the lowest point of the rainwater collection chamber is connected to the port of the downpipe 3. A number of sedimentation troughs 4 are spaced apart on the inclined surface of the rainwater collection chamber to perform a three-stage filtration on the rainwater in the rainwater collection chamber. Here, the sedimentation troughs 4 on the bottom surface of the rainwater collection chamber are used to filter the rainwater three times. The rainwater in the rainwater collection chamber is filtered three times through the sedimentation troughs 4, primarily filtering fine sediment impurities to prevent them from accumulating at the port of the downpipe 3 and causing blockage at the connection between the downpipe 3 and the rainwater collection chamber.

[0046] In this embodiment, each sedimentation tank 4 has a triangular cross-section, which reduces the speed of filtration of fine sediment impurities. Fine sediment impurities are deposited in the triangular troughs, avoiding accumulation in the lower part of the rainwater collection chamber, thereby preventing blockage at the port of the downpipe 3 due to accumulation of fine sediment impurities. In actual construction applications, the rainwater collection system of the present invention is arranged in a rectangular shape on the roof of a building or an outdoor corridor. The downpipe 3 is installed along the wall of the building, and its upper port is connected to the bottom of the rainwater collection system. When it rains, rainwater flows through the first strip-shaped hole into the second rainwater collection device 2. When the accumulated water on the valve plate 11 and the weight of the valve plate 11 exceed the rebound force of the spring 10, the valve plate 11 moves down beyond the lower edge of the first hole, and the second rainwater collection device 2 flows the accumulated water into the first rainwater collector. The rainwater flows through the second rainwater filter plate 8 (medium caliber) for secondary filtration and then passes through the sedimentation tank 4 for deceleration filtration. Fine mud and sand impurities can complete multi-stage sedimentation and filtration. The rainwater finally converges and flows into the downpipe 3 at the bottom of the first rainwater collection device 1, flowing along the wall of the building to the next level of drainage system or water tank. When it is not raining, the valve plate 11 remains in a normally closed state, which can prevent dust and sand from entering the first rainwater collector and reduce the probability of blockage at the connection between the first rainwater collector and the downpipe 3. In addition, since the second rainwater collecting device 2 is injected into the first rainwater collecting device 1 at one time, there is water flow flushing the impurities in the first rainwater collecting device 1, which further reduces the probability of blockage at the connection between the first rainwater collector and the downpipe 3 and improves the drainage efficiency.

[0047] Through scientific and reasonable structural design and functional optimization, the present invention effectively solves the problems of easy clogging and difficult maintenance of rainwater collection devices in island environments, provides reliable technical support for the utilization of rainwater resources in island areas, and has significant practical value and promotion significance.

[0048] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] The present invention has the following advantages:

[0050] 1) Multi-layer filtration structure design: Effectively blocks debris from entering the rainwater collection system, reducing the likelihood of clogging. The first and second rainwater filter plates filter debris of different sizes. In addition, the sedimentation tank on the bottom of the first filter plate further precipitates even finer impurities.

[0051] 2) Normally closed valve structure design: During rainfall, the downward pressure generated by the weight of rainwater automatically opens the second rainwater collection device to complete rainwater collection. In other cases, the valve structure is in a closed state. It has strong adaptability, can minimize blockage, is low-cost, and can be widely used.

[0052] 3) Easy maintenance and low cost: The components of the rainwater collection system are simply connected, making it easy to disassemble and replace aging parts. The overall structural design is reasonable and uses common materials, effectively reducing production and maintenance costs.

[0053] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A rainwater collection system, characterized in that: include: a downspout; a first rainwater collection device comprising: a rainwater collection chamber and a plurality of first openings equidistantly formed on a top surface of the rainwater collection chamber, wherein an inner bottom surface of the rainwater collection chamber is in communication with a port of the downpipe; a plurality of first rainwater filter plates, each of which is embedded in the top of a first hole on the top surface of the rainwater collection chamber to perform a primary filtration on rainwater entering the first hole; A plurality of second rainwater collecting devices, each of which is embedded in a first hole below a first rainwater filter plate, and collects rainwater entering the second rainwater collecting device after the first filtration by the first rainwater filter plate, and only when the rainwater collected in the second rainwater collecting device reaches a predetermined amount, the rainwater collected therein is injected into the rainwater collection cavity of the first rainwater collecting device.

2. The rainwater collection system according to claim 1, wherein: Each second rainwater collection device includes: a valve structure and a second rainwater filter plate, wherein the valve structure includes: a spring, a fixing rod and a valve plate, the fixing rod is vertically fixed to one side of the valve plate; one end of the spring is fixed to the bottom of the first rainwater filter plate, and the other end passes through the second rainwater filter plate and is sleeved and fixed on the fixing rod; the valve plate switches the bottom of the first opening between closing and opening under the drive of the spring; the second rainwater filter plate is arranged in the first opening below the first rainwater filter plate.

3. The rainwater collection system according to claim 2, characterized in that Each second rainwater collecting device further comprises: a plurality of pairs of filter plate pads symmetrically embedded on the inner wall of the first hole, and the second rainwater filter plates are placed on the filter plate pads.

4. The rainwater collection system according to claim 2, wherein: The second rainwater filter plate is a medium-caliber rainwater filter plate.

5. The rainwater collection system according to claim 2, wherein: The valve structure further includes: a screw cap and a nut, wherein the nut is fixedly connected to the spring, and the screw cap and the nut cooperate to fix the spring to the bottom of the first rainwater filter plate.

6. The rainwater collection system according to claim 1, wherein: The inner bottom surface of the rainwater collecting chamber is an inclined surface, and the inner bottom surface at the lowest point of the rainwater collecting chamber is communicated with the port of the downpipe.

7. The rainwater collection system according to claim 6, wherein: A plurality of sedimentation troughs are provided at intervals on the inclined surface of the rainwater collecting chamber to filter the rainwater in the rainwater collecting chamber three times.

8. The rainwater collection system according to claim 7, wherein: The cross section of each sedimentation tank is triangular.

9. The rainwater collection system according to claim 1, wherein: The first rainwater filter plate is a coarse and uniform-caliber rainwater filter plate.

10. The rainwater collection system according to claim 1, wherein: The first hole is in an elongated shape.

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