Automatic rainwater collecting device

Abstract

The invention relates to an automatic rainwater collecting device which effectively solves the problems that flow discarding and sewage interception are integrated and a filter screen is blocked. The technical scheme for solving the problem is that the device comprises a vertical pipe of which the upper end is provided with an inspection cover and the lower end is provided with a water tank; a middle pipe penetrates through the middle part of the partition plate; a gap is formed between the outer edge of the circular ring and the inner wall of the vertical pipe; a spiral channel is fixed above the circular ring; the outer end of the channel is connected with a water inlet pipe; the front part of the outermost side surface of the channel is a filter screen part; an arc-shaped intercepting plate capable of moving up and down is arranged in the channel and can block the filter screen part; an inclined filter plate with a high left part and a low right part is arranged in the water containing tank, and a drain outlet corresponding to the filter plate is formed in the right side of the water containing tank; a floating block located below the filter plate is arranged in the water containing tank, and the floating block and the intercepting plate are connected through a plurality of vertical guide rods; a micro-flow pipe is arranged at the bottom of the water tank; according to the invention, flow discarding and sewage interception are integrated, and impurities are automatically discharged.

Description

Technical Field

[0001] The invention relates to the field of water collection, in particular to an automatic rainwater collection device. Background Art

[0002] Rainwater harvesting is an environmentally friendly and economical water resource management method with a wide range of applications, including sponge city construction, municipal engineering projects, office building (shopping mall) toilet flushing, air conditioning cooling, parking lot car washing, factory production water, farmland (garden) irrigation, greenhouse water replenishment, landscape pool maintenance, and domestic water use. Rainwater harvesting systems typically include four stages: collection, filtration, storage, and transportation. The collection stage primarily relies on rooftop paving and surface runoff. The filtration stage primarily serves to intercept wastewater, remove early rainwater, and capture debris.

[0003] At present, in practice, sewage interception baskets and rainwater discharge devices are generally used together. Sewage interception baskets, such as CN109469192B and CN111395493B, generally have a simple built-in filter. This type of sewage interception equipment requires regular manual cleaning of debris, which is relatively cumbersome. Rainwater discharge devices come in various forms. Some equipment that relies on electricity can work according to time, flow rate, and even water quality; while unpowered ones rely on volume, weight, and other methods to achieve discharge. Currently, unpowered types are the main ones, with low cost and easy maintenance. However, the interior of the discharge device is prone to clogging, especially the volumetric type, while the internal mechanical parts of the flap type are prone to jamming and have low sensitivity.

[0004] In summary, the current rainwater interception and drainage system cannot be integrated, which increases the cost of equipment and the layout of pipelines. In addition, the internal filter of the current equipment is easily clogged, and the internal debris needs to be cleaned regularly, which is relatively cumbersome. Summary of the Invention

[0005] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide an automated rainwater collection device that can effectively solve the problems of integrated wastewater disposal and sewage interception, filter blockage, etc.

[0006] The technical solution is to include a vertical pipe with an inspection cover at the upper end and a water tank connected to the lower end; A partition is fixed inside the vertical pipe, with an intermediate pipe running through the middle of the partition. A circular ring is placed on the upper end of the intermediate pipe, with a gap between the outer edge of the circular ring and the inner wall of the vertical pipe. A spiral channel is fixed above the circular ring. The inner end of the spiral channel is connected to the intermediate pipe, and the outer end of the spiral channel is connected to the water inlet pipe. The front part of the outermost side of the spiral channel is the filter part. A curved intercepting plate is installed in the spiral channel and can move up and down. When the intercepting plate moves downward, it can block the filter part. There is a clean water pipe on the vertical pipe, and the height of the clean water pipe is between the partition and the ring; There is an inclined filter plate with the left side higher and the right side lower in the water tank, and a sewage outlet corresponding to the filter plate is provided on the right side of the water tank; there is a floating block located below the filter plate in the water tank, and the floating block and the intercepting plate are connected by multiple vertical guide rods; there is a micro-flow tube at the bottom of the water tank.

[0007] Preferably, a cover plate is fixed on the spiral channel, a plurality of support rods are fixed on the cover plate, and the upper ends of the support rods are in contact with the inner side surface of the inspection cover; a clearance groove is provided on the cover plate, and the intercepting plate can pass through the clearance groove.

[0008] Preferably, the outer edge of the circular ring is fixed to the inner wall of the vertical tube via a plurality of connecting rods, the inner edge of the circular ring is fixed to the middle tube, and the upper end surfaces of the circular ring and the middle tube are flush.

[0009] Preferably, the spiral channel is formed by spirally winding a stainless steel plate in the form of an Archimedean spiral.

[0010] Preferably, a protective plate is provided at the connection between the water inlet pipe and the spiral channel, and the inner end of the water inlet pipe passes through the protective plate.

[0011] Preferably, the middle portion of the filter plate corresponding to the lower end of the intermediate tube is solid without any holes.

[0012] Preferably, the sewage outlet is in a strip shape, and a joint is provided at the sewage outlet. After the right end of the joint is contracted, it is connected to the sewage pipe.

[0013] Preferably, the inspection cover and the water tank are fixed to the vertical pipe by bolts, wherein the lower end of the vertical pipe and the water tank are closed and connected.

[0014] Preferably, the water tank is provided with a filter screen wrapped around the outside of the end of the microfluidic tube.

[0015] Preferably, the diameter of the microfluidic tube is , and both the sewage outlet and the microfluidic tube are connected to a municipal drainage pipe or a sedimentation tank.

[0016] The benefits of the present invention are as follows: 1. This device can realize wastewater disposal first and then sewage interception, which is integrated and reduces equipment layout and space occupation.

[0017] 2. In this device, water inlet, water outlet and debris discharge flow through different channels and will not interfere with each other. Debris cannot enter the collection system.

[0018] 3. This device utilizes spiral channel filtration and clever arrangement of the intermediate tube to achieve simultaneous filtration and impurity removal, with automatic impurity removal and no need for manual cleaning.

[0019] 4. The up and down movement of the intercepting plate in this device can realize the interception and cleaning of the filter at the same time.

[0020] 5. This device cleverly integrates the functions of interception and pollution prevention through the spiral channel and interception plate, and the two can cooperate with each other to achieve the self-cleaning effect of the filter.

[0021] 6. The filter plates in this device have small holes, which can prevent debris from entering the water tank, allowing the water tank to operate for a long time; and the filter plates are arranged at an angle, using water flow to flush and clean themselves, and debris is automatically discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0023] Figure 2 It is a front side cross-sectional perspective schematic diagram of the present invention.

[0024] Figure 3 It is a right side cross-sectional perspective schematic diagram of the present invention.

[0025] Figure 4 It is a three-dimensional exploded schematic diagram of the present invention (with the inspection cover removed).

[0026] In the figure: vertical pipe 1, inspection cover 2, water tank 3, partition 4, intermediate pipe 5, ring 6, spiral channel 7, water inlet pipe 8, filter part 9, intercepting plate 10, clean water pipe 11, filter plate 12, sewage outlet 13, floating block 14, guide rod 15, micro flow tube 16, cover plate 17, support rod 18, give way groove 19, connecting rod 20, protective plate 21. DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings. Example

[0028] This embodiment provides an automated rainwater collection device, comprising an upper standpipe 1 and a lower water storage tank 3. The lower end of the standpipe 1 is inserted into the water storage tank 3 and secured thereto by bolts. An inspection cover 2 is bolted to the upper end of the standpipe 1, allowing for inspection and maintenance of the device.

[0029] Inside the vertical tube 1 are three panels: a partition 4 at the bottom, a ring 6 in the middle, and a cover 17 above. The partition 4 and ring 6 are fixed, while the cover 17 is movable and held in place by multiple support rods 18. The outer edge of the ring 6 is secured to the vertical tube 1 by multiple connecting rods 20. Between the ring 6 and the cover 17 is a spiral channel 7, with perforations distributed along its outer edge, distributed along the front portion. The outer end of the spiral channel 7 is connected to an inlet pipe 8 via the cover 17, and a clean water pipe 11 is located above the partition 4. With this design, rainwater enters the spiral channel 7 through the inlet pipe 8 and is filtered by the filter 9 on the spiral channel 7. The clean rainwater then flows outward and eventually flows through the clean water pipe 11 into the collection system, achieving a wastewater trapping function. Because the spiral channel 7 is spiral-shaped, a small amount of rainwater flows along the spiral channel 7 to the inner end, ultimately entering the intermediate pipe 5, flushing debris into the intermediate pipe 5. That is, the self-cleaning of the filter part 9 is achieved.

[0030] Inside the spiral channel 7, there is a vertically movable intercepting plate 10. This intercepting plate 10 fits snugly against the filter screen 9. Initially, under its own weight, the intercepting plate 10 blocks the filter screen 9, effectively preventing the spiral channel 7 from filtering and forcing all water into the intermediate tube 5. A plurality of guide rods 15 are connected to the lower end of the intercepting plate 10. The lower ends of these guide rods 15 are positioned within the water tank 3 and fitted with a float 14. The ring 6 and filter plate 12 through which the guide rods 15 pass are each provided with corresponding through-holes to facilitate the upward and downward movement of the guide rods 15. A clearance slot 19 is provided in the cover plate 17 to allow for the upward movement of the intercepting plate 10. With the above-described structural design, initially, the intercepting plate 10 blocks the filter 9 under its own weight, allowing all rainwater to flow into the water storage tank 3 through the intermediate pipe 5. When the water level in the water storage tank 3 rises to a certain level, the continued rise pushes the float 14 upward, thereby driving the intercepting plate 10 upward, opening the filter 9 and initiating filtration. This means that the initial flow can be discarded.

[0031] In addition, in order to avoid water accumulation in the water tank 3, a micro-fluidic pipe 16 is provided at the bottom of the water tank 3. The flow rate of the micro-fluidic pipe 16 is relatively small, and after the rain stops, the rainwater in the water tank 3 can be drained. The micro-fluidic pipe 16 also discharges water into the municipal pipeline.

[0032] In this device, a tilted filter plate 12 is installed within the water tank 3. The central area of ​​the filter plate 12 is not perforated. A sewage outlet 13 is located on the right side of the water tank 3 and connected to the municipal drainage pipe via a connector. Rainwater falling through the intermediate pipe 5 is filtered by the filter plate 12, carrying debris with it and flowing into the municipal pipeline or sedimentation tank.

[0033] Installation and inspection.

[0034] In this device, the water inlet pipe 8 is the water inlet, the clean water pipe 11 is the rainwater outlet, the sewage outlet 13 and the micro-flow tube 16 are the impurity outlets, and the pipes are connected according to the working conditions during actual installation.

[0035] When an internal fault occurs, the inspection cover 2 is opened first, and then the cover plate 17 can be taken out to inspect and maintain the main spiral channel 7. At the same time, the connection between the vertical pipe 1 and the water tank 3 can be removed and the water tank 3 can be maintained.

[0036] The operating principle of this device is as follows.

[0037] Abandoned Flow State: In the initial state, water tank 3 is empty, and interceptor plate 10, float 14, and guide rod 15 are at their lowest travel position. At this point, interceptor plate 10 completely blocks filter screen 9. When rain begins, rainwater enters through inlet pipe 8 and flows directly through spiral channel 7 into intermediate pipe 5. It then falls downward, passes through filter plate 12, and enters water tank 3. Float 14 is initially at a distance from the bottom of water tank 3. Therefore, rainwater entering early cannot lift float 14 upward, achieving early-stage abandoned flow.

[0038] Collection state: As rainwater continues to collect, the liquid level in the water tank 3 will gradually rise. At this time, the float 14 is affected by buoyancy and rises, which in turn drives the intercepting plate 10 to rise, causing the intercepting plate 10 to partially open the filter part 9. Then, part of the rainwater in the spiral channel 7 will be filtered by the filter part 9, flow outward, and eventually enter the collection box through the clean water pipe 11. In this state, part of the rainwater will be filtered and enter the collection box, while another part of the rainwater may directly enter the intermediate pipe 5, carrying debris onto the filter plate 12 and eventually discharged from the sewage outlet 13, thus achieving self-cleaning of the filter part 9. In addition, because the filter plate 12 is arranged at an angle and has very small holes, especially when the liquid level in the water tank 3 is high, the debris above it will also be discharged from the sewage outlet 13 along with the water flow.

[0039] In the collection mode, the water level in the water tank 3 controls the opening of the filter 9. The higher the water level in the water tank 3, the wider the filter 9 opens. This is typically accompanied by heavy rainfall. Expanding the filter 9 opening increases the filtration area and improves filtration efficiency. This, combined with the microfluidic tube 16, allows for tailored collection methods for different types of rain.

[0040] Light rain: At this time, the speed of rainwater collection is not lower than the discharge speed of the micro-flow tube 16, so no collection is performed.

[0041] Light to medium rain: After the initial rainwater is discarded, the water accumulated in the water storage tank 3 reaches a medium-low level. The opening of the filter 9 also decreases to a small to medium level, allowing rainwater to be collected. If the water level in the water storage tank 3 drops, the opening of the filter 9 decreases to replenish the rainwater, and then the opening of the filter 9 increases again. The height of the interceptor plate 10 may fluctuate or become stable.

[0042] Heavy rain: At this time, part of the rainwater is filtered by the filter part 9 and enters the clean water pipe 11, and a small part of the rainwater enters the water tank 3 through the intermediate pipe 5. The filter part 9 is opened to the maximum, and the excess water in the water tank 3 will be discharged from the sewage outlet 13.

[0043] Reset state: When the rain stops, the water in the water tank 3 will gradually drain out, and the intercepting plate 10 will reset downward. A counterweight can be added above the intercepting plate 10, which will correspondingly increase the volume of the floating block 14, thereby improving the cleaning effect and preventing the intercepting plate from getting stuck when moving up and down.

[0044] In this device, during rain, some rainwater is filtered through the filter 9, leaving debris inside the filter 9. Meanwhile, some rainwater flows through the spiral channel 7 into the intermediate tube 5, flushing away the debris remaining inside the filter 9 before ultimately being discharged through the sewage outlet 13. This constitutes the primary cleaning of the filter 9. Furthermore, as the interceptor plate 10 moves up and down, it also cleans debris adhering to the filter 9, representing the secondary cleaning. This means that the filter 9 is self-cleaning, eliminating the need for manual cleaning.

[0045] In this device, the pore size on the filter plate 12 is small, which can prevent debris from entering the water tank 3 and clogging the microfluidic tube 16. In addition, the inner end of the microfluidic tube 16 can be filtered and protected; the filter plate 12 is arranged at an angle, and the debris on the upper side can also be discharged by itself, that is, the filter plate 12 does not need to be manually cleaned.

[0046] In this device, the spiral channel 7 and interceptor plate 10 are cleverly coordinated. The downward position of interceptor plate 10 allows for wastewater rejection, while the upward position allows for wastewater interception. Furthermore, the spiral shape of spiral channel 7, in conjunction with intermediate pipe 5, facilitates the drainage of debris. After secondary filtration, the wastewater is collected in holding tank 3 for wastewater rejection and buoyancy control. The overall design of the device is rational and ingenious.

Claims

1. An automated rainwater collection device comprising a vertical pipe (1), characterized in that: The upper end of the vertical pipe (1) is provided with an inspection cover (2), and the lower end is connected to a water tank (3); A partition (4) is fixed inside the vertical tube (1), and an intermediate tube (5) is passed through the middle of the partition (4); a circular ring (6) is sleeved on the upper end of the intermediate tube (5), and a gap is formed between the outer edge of the circular ring (6) and the inner wall of the vertical tube (1); a spiral channel (7) is fixed above the circular ring (6); the inner end of the spiral channel (7) is connected to the intermediate tube (5), and the outer end of the spiral channel (7) is connected to the water inlet pipe (8); the front part of the outermost side of the spiral channel (7) is a filter part (9); an arc-shaped intercepting plate (10) that can move up and down is provided in the spiral channel (7), and the intercepting plate (10) can block the filter part (9) when it moves downward; The vertical pipe (1) is provided with a clean water pipe (11), and the clean water pipe (11) is located between the partition (4) and the ring (6); The water tank (3) contains an inclined filter plate (12) that is higher on the left and lower on the right, and a sewage outlet (13) corresponding to the filter plate (12) is provided on the right side of the water tank (3); a floating block (14) is provided in the water tank (3) below the filter plate (12), and the floating block (14) and the intercepting plate (10) are connected via a plurality of vertical guide rods (15); and a micro-flow tube (16) is provided at the bottom of the water tank (3).

2. The automatic rainwater collection device according to claim 1, characterized in that: A cover plate (17) is fixed on the spiral channel (7), and a plurality of support rods (18) are fixed on the cover plate (17). The upper ends of the support rods (18) are in contact with the inner side surface of the inspection cover (2); a clearance groove (19) is provided on the cover plate (17), and the intercepting plate (10) passes through the clearance groove (19).

3. The automatic rainwater collection device according to claim 1, characterized in that: The outer edge of the circular ring (6) is fixed to the inner wall of the vertical tube (1) via a plurality of connecting rods (20), the inner edge of the circular ring (6) is fixed to the intermediate tube (5), and the upper end surfaces of the circular ring (6) and the intermediate tube (5) are flush.

4. The automatic rainwater collection device according to claim 1, characterized in that: A protective plate (21) is provided at the connection between the water inlet pipe (8) and the spiral channel (7), and the inner end of the water inlet pipe (8) passes through the protective plate (21).

5. The automatic rainwater collection device according to claim 1, characterized in that: The middle portion of the filter plate (12) corresponding to the lower end of the intermediate tube (5) is solid without any holes.

6. The automatic rainwater collection device according to claim 1, characterized in that: The sewage outlet (13) is in a strip shape and has a joint at the sewage outlet (13). After the right end of the joint is contracted, it is connected to the sewage pipe.

7. The automatic rainwater collection device according to claim 1, characterized in that: The inspection cover (2) and the water tank (3) are fixed to the vertical pipe (1) by bolts, wherein the lower end of the vertical pipe (1) and the water tank (3) are closed and connected.

8. The automatic rainwater collection device according to claim 1, characterized in that: The water storage tank (3) is provided with a filter screen wrapped around the outside of the end of the micro-fluidic tube (16).

9. The automatic rainwater collection device according to claim 1, characterized in that: The diameter of the micro-fluidic tube (16) is . The sewage outlet (13) and the micro-fluidic tube (16) are both connected to a municipal drainage pipe or a sedimentation tank.

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