Rainwater collecting and discarding device

Abstract

The utility model discloses a rainwater collecting and discarding device which comprises a rainwater collecting piece, the rainwater collecting piece is provided with a discarding cavity and a collecting cavity, the discarding cavity is provided with a water inlet, a water outlet and an overflow port, and the water inlet, the overflow port and the water outlet are distributed in the height direction of the discarding cavity at intervals; the water inlet is used for guiding water flow into the flow discarding cavity, and the water outlet is located in the bottom of the flow discarding cavity and used for guiding water flow to be discharged. The overflow port is communicated with the collecting cavity; and the filtering piece is arranged at the overflow port. The water inlet, the overflow port and the drainage port of the device are distributed at intervals, rainwater can be subjected to stage treatment according to the water level and the water quality, the rainwater enters the discarding cavity from the higher water inlet, large-particle impurities and heavy pollutants are precipitated and discharged through the bottom drainage port, primary solid-liquid separation and discarding are achieved, and primary natural filtration is completed; the water level rises to the overflow port, rainwater enters the collecting cavity through the filtering piece at the overflow port, impurities are intercepted, secondary filtering is achieved, and the rainwater quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of rainwater treatment technology, and in particular to a rainwater collection and diversion device. Background Technology

[0002] During rainfall, due to the influence of different underlying surfaces, the initial rainwater contains more pollutants. In order to collect the middle and later rainwater with better water quality and reduce the cost of rainwater treatment and reuse systems, the initial rainwater is discarded and the middle and later rainwater is collected. This practice is called rainwater collection and discarding, and the equipment that can achieve this function is called a rainwater collection and discarding device.

[0003] In existing rainwater harvesting and diversion devices, after rainwater enters the collection tank, insufficient filtration causes solid impurities such as dust, silt, and leaves to accumulate in the collection tank, resulting in poor water quality and affecting subsequent use. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a rainwater collection and diversion device, in which rainwater undergoes multiple filtrations before entering the collection chamber, making the rainwater relatively clean after entering the collection chamber and improving the quality of rainwater.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A rainwater harvesting and diversion device, comprising,

[0007] A rainwater harvesting device includes a diversion chamber and a collection chamber. The diversion chamber has an inlet, a drain outlet, and an overflow outlet, which are spaced apart along the height of the diversion chamber. The inlet guides water flow into the diversion chamber, and the drain outlet is located at the bottom of the diversion chamber and guides water flow out. The overflow outlet is connected to the collection chamber.

[0008] A filter element is disposed at the overflow port.

[0009] Furthermore, a filter plate is provided inside the wastewater chamber, with the top end of the filter plate connected to the top wall of the wastewater chamber and the bottom end of the filter plate connected to the bottom wall of the wastewater chamber.

[0010] Furthermore, the collecting chamber has a water outlet; the collecting chamber is also equipped with a water pump and a water guide pipe, one end of the water guide pipe is connected to the water pump, and the other end of the water guide pipe is connected to the water outlet.

[0011] Furthermore, it also includes an overflow pipe, which is connected to the wastewater chamber.

[0012] Furthermore, the collecting chamber also has an exhaust port that is connected to the outside.

[0013] Furthermore, the rainwater collection device includes a box and a partition. The box has a cavity, and the partition is disposed in the cavity, dividing the cavity into the diversion cavity and the collection cavity.

[0014] Furthermore, the partition includes a vertical plate segment and a horizontal plate segment. The vertical plate segment is connected to the top wall of the cavity, one end of the horizontal plate segment is connected to the bottom end of the vertical plate segment, and the other end of the horizontal plate segment is connected to the side wall of the cavity. The horizontal plate segment, the vertical plate segment, the top wall and the side wall of the cavity together form the overflow cavity; the overflow port is provided in the vertical plate segment.

[0015] Furthermore, the rainwater collection device is provided with at least two inspection holes, one of which is connected to the diversion cavity, and the other of which is connected to the collection cavity.

[0016] Furthermore, the inspection hole is provided with a sealing cover, which is detachably connected to the inspection hole to open or close the inspection hole.

[0017] Furthermore, the filter element is a grid.

[0018] In summary, the rainwater collection and diversion device provided by this utility model has the following technical effects: due to the height-interval distribution of the inlet, overflow outlet and drain outlet, rainwater can be graded according to the water level. When the initially dirtier rainwater enters the diversion chamber from the higher inlet, some large particles and heavier pollutants settle at the bottom of the diversion chamber under the action of gravity and can be discharged through the drain outlet at the bottom, thus achieving preliminary solid-liquid separation and diversion, and completing the first natural filtration.

[0019] When the water level rises to the height of the overflow outlet, the rainwater needs to pass through the filter at the overflow outlet before entering the collection chamber. The filter can intercept the remaining impurities and suspended solids in the rainwater, further removing pollutants and playing a second filtration role. This allows the rainwater entering the collection chamber to undergo double filtration, thereby improving the quality of the rainwater entering the collection chamber. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0022] The meanings of the reference numerals in the attached figures are as follows:

[0023] 10. Housing; 11. Partition; 12. Inspection hole; 20. Diversion chamber; 21. Inlet; 22. Outlet; 23. Filter plate; 24. Overflow pipe; 30. Collection chamber; 31. Vent; 40. Filter element; 50. Water pump. Detailed Implementation

[0024] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] See Figures 1 to 2 This utility model discloses a rainwater collection and diversion device, including a rainwater collection component and a filter component 40. The rainwater collection component has a diversion chamber 20 and a collection chamber 30. The diversion chamber 20 has an inlet 21, a drain outlet 22 and an overflow outlet. The inlet 21, the overflow outlet and the drain outlet 22 are distributed at intervals in the height direction of the diversion chamber 20. The inlet 21 is used to guide water flow into the diversion chamber 20. The drain outlet 22 is located at the bottom of the diversion chamber 20 and is used to guide water flow out. The overflow outlet is connected to the collection chamber 30, and the filter component 40 is located at the overflow outlet.

[0028] Based on the above structure, during assembly, the inlet 21 can be located at the top of the diversion chamber 20, the outlet 22 at the bottom of the diversion chamber 20, and the overflow outlet at a position lower than the inlet 21 and higher than the outlet 22 (e.g., Figure 1 (The position of the filter element 40 is shown), and the overflow port is connected to the collection chamber 30 so that rainwater can be graded according to the water level before entering the collection chamber 30.

[0029] Specifically, since the rainwater entering the diversion box initially contains a large amount of pollutants and the volume is small, the rainwater entering the diversion chamber 20 can be directly discharged to the outside through the bottom drain outlet 22. As the amount of rainwater entering increases, when the initially dirtier rainwater enters the diversion chamber 20 from the higher inlet 21, some large particles and heavier pollutants settle at the bottom of the diversion chamber 20 under the action of gravity, achieving preliminary solid-liquid separation and diversion, and completing the first natural filtration.

[0030] Subsequently, when the water level rises to the height of the overflow outlet, the relatively clean rainwater above enters the collection chamber 30 through the overflow outlet. It needs to pass through the filter element 40 at the overflow outlet before entering the collection chamber 30. The filter element 40 can intercept the remaining impurities and suspended solids in the rainwater, further removing pollutants and playing a second filtration role. This allows the rainwater entering the collection chamber 30 to undergo double filtration, thereby improving the quality of the rainwater entering the collection chamber 30.

[0031] It should be noted that the filter element 40 in this embodiment can be an existing structure used for filtration, such as a grille, filter screen, filter cloth, or filter, to filter rainwater.

[0032] Preferably, the filter element 40 in this embodiment is an existing grille. Compared with filter cloth or filter screen, the grille is usually made of materials such as metal or high-strength plastic, and has a larger thickness and rigidity in structure. It can withstand greater external impact. When large debris is impacted by the water flow, the grille can maintain its structural integrity and is not easily deformed or damaged, thereby indirectly improving the stability and service life of the entire structure.

[0033] In addition, the rainwater collection device can be composed of two interconnected boxes 10 or pools with cavities inside, so that a diversion cavity 20 or a collection cavity 30 is formed inside; of course, it can also be formed by setting a partition 11 inside each box 10 or pool to divide its interior into a diversion cavity 20 and a collection cavity 30.

[0034] Furthermore, a filter plate 23 is provided inside the wastewater chamber 20. The top end of the filter plate 23 is connected to the top wall of the wastewater chamber 20, and the bottom end of the filter plate 23 is connected to the bottom wall of the wastewater chamber 20.

[0035] Based on this structure, the filter plate 23 is set between the inlet 21 and the overflow. In this way, when the initially dirty rainwater enters the diversion chamber 20 through the high inlet 21, the presence of the filter plate 23 can intercept the impurities in the rainwater. This prevents the rainwater from flowing directly towards the overflow after entering the diversion chamber 20 from the high inlet 21. During the flow towards the overflow, the rainwater will come into contact with the filter plate 23. Some suspended particles and debris will be blocked by the filter plate 23 and cannot flow directly to the overflow, thus achieving primary filtration and trapping some impurities on the side of the filter plate 23 near the inlet 21.

[0036] In addition, the presence of filter plate 23 extends the flow path of rainwater in the diversion chamber 20. Rainwater needs to flow along filter plate 23 to its bottom. During this process, the water flow speed will slow down, allowing impurities in the rainwater more time to settle to the bottom of the diversion chamber 20 under the action of gravity, further achieving solid-liquid separation. This is equivalent to another sedimentation filtration. Thus, when the water level rises to the overflow port height, the water flowing to the overflow port has been filtered twice. Then, it is filtered again through filter element 40 at the overflow port, achieving triple filtration. This makes the rainwater entering the collection chamber 30 cleaner and further improves the quality of rainwater.

[0037] It should be noted that the filter plate 23 in this embodiment can be an existing perforated plate (such as a plate formed by uniformly drilling many small holes on a metal plate or plastic plate), a filter media filling plate (formed by filling the frame with granular filter media, such as quartz sand, activated carbon, etc.), or a grid plate, etc.

[0038] Furthermore, the collecting chamber 30 has a water outlet, and a water pump 50 and a water guide pipe are also provided inside the collecting chamber 30. One end of the water guide pipe is connected to the water pump 50, and the other end of the water guide pipe is connected to the water outlet.

[0039] Specifically, during assembly, the water pump 50 is placed inside the collection chamber 30 and then connected to the water outlet through the water guide pipe. When the water inside the collection chamber 30 needs to be used, the water pump 50 can provide a power source to transport the water to the outside through the water guide pipe and the water outlet for external use.

[0040] Preferably, the water pump 50 in this embodiment can be an existing centrifugal pump, axial flow pump, or screw pump.

[0041] More specifically, it also includes an overflow pipe 24. During assembly, both ends of the overflow pipe 24 are connected to the diversion chamber 20 and the outside, respectively. In this way, when the diversion chamber 20 or the collection chamber 30 encounters extreme weather such as heavy rain, which causes a large amount of rainwater to rush in and the water level to rise rapidly, the overflow pipe 24 can discharge the excess water in time, preventing the chamber from rupturing or deforming due to excessive water pressure, avoiding structural damage to the entire rainwater collection system, and ensuring the safe and stable operation of the system.

[0042] Specifically, overflow pipe 24 can be made of existing PVC pipe or stainless steel pipe, etc.

[0043] Furthermore, the collecting cavity 30 also has an exhaust port 31, which is connected to the outside.

[0044] Specifically, when the water in the collection chamber 30 is pumped out by the water pump 50 or other equipment, if there is no vent 31, a negative pressure will be formed in the chamber. As the water is continuously discharged, the negative pressure will gradually increase, which may cause damage to the structure of the collection chamber 30, such as deformation or cracking. Therefore, in this embodiment, by setting the vent 31, external air can be allowed to enter the chamber in time to balance the pressure, avoid the generation of negative pressure, and protect the structural integrity of the collection chamber 30.

[0045] Furthermore, the rainwater collection device includes a housing 10 and a partition 11. The housing 10 has a cavity, and the partition 11 is disposed in the cavity and divides the cavity into a diversion cavity 20 and a collection cavity 30.

[0046] Based on this structure, the rainwater collection device in this embodiment is formed by a box 10. By setting a partition 11 in the cavity inside the box 10, a diversion cavity 20 and a collection cavity 30 are formed inside the box 10.

[0047] Compared to using two independent boxes 10 or containers to form the diversion chamber 20 and the collection chamber 30 respectively, this embodiment uses a partition 11 to separate a single box 10 to form the diversion chamber 20 and the collection chamber 30. This eliminates the need to consider the space between the two independent structures, allowing for a more compact arrangement in a limited space, effectively saving installation space on the ground or underground, and improving space utilization.

[0048] It should be noted that the box body 10 and the partition 11 in this embodiment can be made of high-strength and corrosion-resistant materials such as stainless steel or fiberglass, so that they can resist the erosion of environmental factors such as rainwater and soil and have a long service life.

[0049] Furthermore, the partition 11 includes a vertical plate segment and a horizontal plate segment. The vertical plate segment is connected to the top wall of the cavity, one end of the horizontal plate segment is connected to the bottom end of the vertical plate segment, and the other end of the horizontal plate segment is connected to the side wall of the cavity. The horizontal plate segment, the vertical plate segment, the top wall and the side wall of the cavity form a diversion cavity 20, and the overflow port is located in the vertical plate segment.

[0050] Specifically, in some irregularly shaped boxes 10, vertical plates alone may not make good use of corners or irregular spaces. Therefore, in this embodiment, by setting vertical plate segments and horizontal plate segments, the actual shape of the box 10 can be flexibly adjusted to better fill the space, making the shapes of the diversion cavity 20 and the collection cavity 30 more in line with actual needs and improving space utilization.

[0051] More specifically, the rainwater collection device is equipped with at least two inspection holes 12. One inspection hole 12 is connected to the diversion chamber 20, and the other inspection hole 12 is connected to the collection chamber 30. In this way, the staff can regularly observe the internal condition of the diversion chamber 20 and the collection chamber 30 through the inspection holes 12, such as checking whether there are cracks or leaks in the chamber, checking whether the baffle 11 is damaged or displaced, and observing the flow of rainwater in the chamber, so as to discover potential problems in time and take corresponding maintenance measures.

[0052] In addition, when there are foreign objects blocking the overflow chamber 20 or the collection chamber 30, staff can also use cleaning tools or directly insert their hands through the inspection hole 12 into the chamber to clean the debris and maintain the inside of the chamber.

[0053] It should be noted that the rainwater collection device in this embodiment may have multiple inspection holes 12 depending on the actual space size of the diversion chamber 20 or the collection chamber 30, so that staff can observe or maintain the internal problems of the chamber from multiple angles.

[0054] Furthermore, the inspection hole 12 is provided with a sealing cover, which is detachably connected to the inspection hole 12 to open or close the inspection hole 12.

[0055] Specifically, when it is necessary to check the inside of the diversion chamber 20 or the collection chamber 30, the sealing cover can be opened to check the inside of the chamber and perform maintenance. After the maintenance is completed, the sealing cover is connected to the inspection hole 12 to seal the inspection hole 12. This prevents external dust, mud and other impurities from entering the rainwater collection device and avoids impurities from entering the diversion chamber 20 or the collection chamber 30 through the inspection hole 12, affecting the water quality of the rainwater, or causing blockage of the internal pipes.

[0056] It should be noted that the sealing cover can be connected to the end wall of the inspection hole 12 in a detachable manner, such as by snap-fit, magnetic attraction or threaded connection, so that the staff can open or close the inspection hole 12 at any time.

[0057] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A rainwater harvesting and runoff device, characterised in that, The rainwater collecting device comprises: a rainwater collecting part having a flow discarding cavity and a collecting cavity, the flow discarding cavity having a water inlet, a water outlet and an overflow port, the water inlet, the overflow port and the water outlet being spaced apart in the height direction of the flow discarding cavity; the water inlet is used to guide water flow into the flow discarding cavity, the water outlet is located at the bottom of the flow discarding cavity and is used to guide water flow out, and the overflow port is communicated with the collecting cavity; a filter part arranged at the overflow port.

2. The rainwater harvesting and shedding device of claim 1, wherein, A filter plate is arranged in the flow discarding cavity, the top end of the filter plate is connected to the top wall of the flow discarding cavity, and the bottom end of the filter plate is connected to the bottom wall of the flow discarding cavity.

3. The rainwater harvesting and shedding device of claim 2, wherein, The collecting cavity has a water outlet, and a water pump and a water guide pipe are further arranged in the collecting cavity, one end of the water guide pipe is communicated with the water pump, and the other end of the water guide pipe is communicated with the water outlet.

4. The rainwater harvesting and shedding device of claim 3, wherein, An overflow pipe is further arranged, which is communicated with the flow discarding cavity.

5. The rainwater harvesting and overflow device of claim 1, wherein, The collecting cavity further has an air vent, which is communicated with the outside.

6. The rainwater harvesting and runoff device of any one of claims 1-5, wherein, The rainwater collecting device comprises a box body having a cavity and a partition plate arranged in the cavity and separating the cavity into the flow discarding cavity and the collecting cavity.

7. The rainwater harvesting and overflow device of claim 6, wherein, The partition plate comprises a vertical plate segment connected to the top wall of the cavity and a horizontal plate segment having one end connected to the bottom end of the vertical plate segment and the other end connected to the side wall of the cavity, and the horizontal plate segment, the vertical plate segment and the top wall and the side wall of the cavity form the flow discarding cavity, and the overflow port is arranged on the vertical plate segment.

8. The rainwater harvesting and shedding device of any one of claims 1-5, wherein, At least two maintenance holes are arranged on the rainwater collecting device, one of which is communicated with the flow discarding cavity and the other of which is communicated with the collecting cavity.

9. The rainwater harvesting and overflow device of claim 8, wherein, A sealing cover is arranged on the maintenance hole, and the sealing cover is detachably connected to the maintenance hole to open or seal the maintenance hole.

10. The rainwater harvesting and shedding device as claimed in any one of claims 1 to 5, wherein, The filter part is a grille.

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