A building rainwater collection device and collection method for automatically intercepting, purifying and storing rainwater

Abstract

The present invention discloses a rainwater collection device and a collection method for a building that automatically intercepts, purifies and stores rainwater, and relates to the technical field of rainwater collection. The device comprises a collection pool, an inner wall of the collection pool is fixedly connected to a partition net, the partition net divides the inner cavity of the collection pool into a water storage chamber and a clean water chamber, the upper part of the clean water chamber is provided with a water collection component, and the upper part of the water storage chamber is provided with a water outlet component and a mud discharge component; the water collection component comprises a water collection cylinder, and the middle part of the inner wall of the water collection cylinder is provided with a regulating member for regulating the water collection flow; the overall collection device of the present invention stores rainwater by arranging a collection pool, and cooperates with the water collection component, water outlet component, mud discharge component and other structures arranged thereon to respectively realize the functions of collecting, discharging and utilizing rainwater and discharging sludge; the overall device has strong practicality and good functionality.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater collection, in particular to a building rainwater collection device and a collection method for automatically intercepting, purifying and storing rainwater. Background Art

[0002] Rainwater, a natural water resource, can be purified and treated by a rainwater collection system and then used for non-potable purposes such as landscaping, car washing, and toilet flushing, maximizing the utilization of water resources. During heavy rain, rainwater collection systems can quickly collect rainwater, reducing its impact on drainage systems and effectively preventing urban waterlogging, thereby alleviating urban drainage pressure.

[0003] Existing rainwater collection systems often simply use pipes to channel rainwater into a collection tank for storage. Pumps and other devices are used to draw water when needed. This overall structure is limited in functionality and inconvenient to use. Furthermore, they lack rainwater detection and processing capabilities. If not used for extended periods, rainwater can settle, becoming too polluted and unusable. Furthermore, when the collection tank is full, there's no way to drain or clean it in a timely manner. Summary of the Invention

[0004] The purpose of the present invention is to provide a building rainwater collection device and collection method that automatically intercepts, purifies and stores rainwater, so as to solve the problem that the existing collection device proposed in the above background technology can only simply divert and store water, has a single structure and functionality, and is inconvenient to use.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A rainwater collection device for a building that automatically intercepts, purifies and stores rainwater comprises a collection tank, an inner wall of the collection tank is fixedly connected to a partition net, the partition net divides the inner cavity of the collection tank into a water storage chamber and a clean water chamber, a water collection component is provided on the upper part of the clean water chamber, a water outlet component and a mud discharge component are provided on the upper part of the water storage chamber, a discharge pipeline is provided on one side of the mud discharge component, a discarding device and a return flow component for discharging sludge are provided in the middle of the discharge pipeline; the water collection component comprises a water collecting cylinder, an adjusting member for adjusting the water collection flow is provided in the middle part of the inner wall of the water collecting cylinder, a diversion pipe is fixedly connected to one side of the water collecting cylinder, one end of the diversion pipe is connected to the return flow component, a plurality of water diversion pipes are fixedly connected in the middle part of the diversion pipe, and one end of the water diversion pipe is fixedly connected to the interception and storage component.

[0007] As a further solution of the present invention: the adjusting part includes a rotating gear disc, the bottom of the rotating gear disc is fixedly connected to a mounting rod, the bottom of the mounting rod is fixedly connected to a plurality of closing plates, a plurality of supporting plates are fixedly installed on the middle part of the inner wall of the water collecting cylinder, a water collecting port is provided between the plurality of supporting plates, and the size of the closing plate is larger than the size of the water collecting port; an adjusting motor is provided on one side of the rotating gear disc, the output end of the adjusting motor is fixedly connected to an adjusting gear, and one side of the adjusting gear is meshed with the rotating gear disc; the connection port of the diversion pipe and the water collecting cylinder is located higher than the height of the closing plate.

[0008] As a further solution of the present invention: the retaining assembly includes a retaining plate, the bottom of the retaining plate is fixedly connected to a mounting plate, the top surface of the retaining plate is inclined, a water-permeable groove is provided on the top of the retaining plate, and the bottom of the retaining plate is fixedly connected to the water diversion pipe.

[0009] As a further solution of the present invention: the top of the inner wall of the retaining plate is slidably connected to an inner lining plate, a plurality of through openings are opened in the middle of the inner lining plate, and a push-pull block is fixedly connected to one side of the top of the inner lining plate.

[0010] As a further solution of the present invention: the discarding device includes an outer cover plate, the bottom of the outer cover plate is fixedly connected to a docking sleeve, the bottom of the docking sleeve is fixedly connected to a filter box, the middle of the inner wall of the filter box is fixedly connected to a filter plate, the discharge pipeline includes segment one and segment two, one end of the segment one is bent downward and passes through the filter plate, one end of the segment two is fixedly connected to one end of the docking sleeve, a discarding pump is fixedly installed on the bottom of the inner wall of the filter box, the output end of the discarding pump is fixedly connected to a discarding pipe, and the top side of the filter box is fixedly connected to the docking sleeve through a filter pipe.

[0011] As a further solution of the present invention: the return assembly includes a mounting sleeve, a return sleeve is fixedly installed on the bottom of the mounting sleeve, the top of the return sleeve is fixedly connected to a guide platform, the top of the guide platform is fixedly connected to a filter screen, the bottom of the guide platform is fixedly connected to a partition plate, the bottom of the partition plate is fixedly installed with a return water pump, and the output end of the return water pump is fixedly connected to the return pipe.

[0012] As a further solution of the present invention: one end of the return pipe is fixedly connected to a cleaning piece, the cleaning piece is arranged inside the collection tank, the cleaning piece includes a cleaning frame, a direction adjustment motor is fixedly installed on one side of the inner wall of the cleaning frame, the output end of the direction adjustment motor is fixedly connected to a direction adjustment sleeve, a water supply trough is provided on one side of the direction adjustment sleeve, and the other side of the direction adjustment sleeve is fixedly connected to the return pipe.

[0013] As a further solution of the present invention: a water inlet well is provided on one side of the water collecting assembly, the water inlet well is connected to the inside of the water collecting cylinder through a water inlet pipe, a water inlet pump is fixedly installed on the bottom of the inner wall of the water collecting cylinder, and the output end of the water inlet pump is connected to the clean water chamber.

[0014] As a further solution of the present invention: the water outlet assembly includes a water outlet cylinder, a water outlet pump is fixedly installed on the bottom of the inner wall of the water outlet cylinder, and the output end of the water outlet pump is fixedly connected to a plurality of water outlet pipes.

[0015] As a further solution of the present invention: the mud discharge assembly includes a mud discharge cylinder, a mud discharge pump is fixedly installed at the bottom of the inner wall of the mud discharge cylinder, the input end of the mud discharge pump is fixedly connected to a mud discharge pipe, and the bottom of the mud discharge pipe extends to the bottom of the water storage chamber.

[0016] A method for collecting rainwater from a building that automatically intercepts, purifies, and stores rainwater comprises the following steps:

[0017] Step 1: Collect rainwater through the inlet well and the interception and storage components and send it to the collection pool;

[0018] Step 2: When water is needed, start the water outlet pump to discharge the water in the collection pool through the outlet pipe;

[0019] Step 3: Start the mud pump to send the muddy water at the bottom of the collection pool to the discard flow device, which will filter it and then discharge it;

[0020] Step 4: Use the regulating piece to adjust the water flow capacity of the water inlet well. The water that cannot pass through is sent to the return flow component through the diversion pipe;

[0021] Step 5: The reflux component discharges or returns the water to the collection tank.

[0022] Compared with the prior art, the present invention has the following beneficial effects: the integrated collection device of the present invention stores rainwater by setting up a collection pool, and cooperates with the water collection component, water outlet component, mud discharge component and other structures provided thereon to respectively realize the functions of collecting, discharging and utilizing rainwater and discharging sludge; the overall device is highly practical and functional;

[0023] On the basis of achieving the above functions, in order to meet the need for rainwater collection when the collection pool is full, the present invention provides an adjustment member and utilizes an adjustment motor and other structures to drive the closing plate to rotate, thereby realizing the opening and closing of the water collection port and thus realizing the control of the water inlet flux of the water collection cylinder, so as to reduce or stop the water inlet operation to the collection pool when necessary, so as to meet the working needs under different conditions;

[0024] The present invention collects water from the downslope of the building or where water flows converge by distributing interception and storage components at multiple locations in the building, thereby meeting the need for collecting rainwater at multiple locations in the building and improving the rainwater collection capacity of the device. Slidable inner lining plates are provided in the interception and storage components, and push-pull blocks are used to drive the inner lining plates to move, so that the openings and the permeable grooves are misaligned, thereby achieving dust-proof protection for the inner cavity of the interception and storage plates when rainwater is not being collected.

[0025] The present invention provides a reflux component to return cleaner rainwater to the bottom of the collection pool, thereby impacting the sludge at the bottom of the collection pool and causing it to float, facilitating the sludge discharge operation of the sludge pump, and replacing the water in the collection pool, that is, replacing the water with more sludge at the bottom of the collection pool with cleaner water, thereby improving the cleanliness of the stored rainwater; the direction of the water delivery trough is adjusted by the direction adjustment motor to drive the direction adjustment sleeve to rotate, thereby meeting the needs of flushing a larger area of ​​the bottom of the collection pool; the impact force of the water flow is increased, and the ability to clean the sludge is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the layout of the rainwater collection device of the present invention;

[0027] Figure 2 is a cross-sectional view of the water collection assembly of the present invention;

[0028] Figure 3 Schematic diagram of the position distribution of the support plate of the present invention;

[0029] Figure 4 is a cross-sectional view of the flow abandonment device of the present invention;

[0030] Figure 5 A perspective view of the impoundment assembly of the present invention;

[0031] Figure 6 A perspective view of the inner lining plate of the present invention;

[0032] Figure 7 is a cross-sectional view of the reflux assembly of the present invention;

[0033] Figure 8 It is a cross-sectional view of a cleaning member of the present invention.

[0034] In the figure: 1. Collection tank; 2. Separation net; 3. Water collection assembly; 301. Top cover; 302. Water collection cylinder; 303. Rotating gear disc; 304. Adjustment motor; 305. Adjustment gear; 306. Mounting rod; 307. Closing plate; 308. Support plate; 309. Water collection port; 4. Water inlet well; 5. Interception assembly; 501. Mounting plate; 502. Interception plate; 503. Water diversion pipe; 504. Water permeable trough; 505. Push-pull block; 506. Through port; 507. Lining plate; 6. Discarding device; 601. Filter box; 602. Filter plate; 603. Discarding pump; 604. Discarding pipe; 605, filter pipe; 606, docking sleeve; 7, discharge pipeline; 701, segment one; 702, segment two; 8, return assembly; 801, installation sleeve; 802, return sleeve; 803, filter screen; 804, partition plate; 805, return water pump; 806, return pipe; 807, guide table; 808, installation sleeve; 809, detector; 810, cleaning rack; 811, adjustment sleeve; 812, water supply trough; 9, safety diversion well; 10, water inlet pump; 11, water outlet pump; 12, mud pump; 13, water outlet pipe; 14, total amount monitor; 15, operation station. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1 In one embodiment of the present invention, a rainwater collection device for a building that automatically intercepts, purifies, and stores rainwater is provided. When in use, the device is entirely installed underground and includes a collection tank 1. A partition net 2 is fixedly connected to the inner wall of the collection tank 1. The partition net 2 divides the inner cavity of the collection tank 1 into a water storage chamber and a clean water chamber. The water storage chamber is larger than the clean water chamber. A water collection component 3 for receiving external rainwater is provided on the upper part of the clean water chamber. When in use, a water inlet well 4 can be provided at the ground location of the building where rainwater collection is required or at other locations of the building. The number of the water inlet wells 4 can be adjusted according to actual needs. Each water inlet well 4 is connected to the interior of the water collection cylinder 302 through an inlet pipe. Please refer to Figure 2The water collection component 3 includes a top cover 301, a water collection barrel 302 is fixedly connected to the bottom of the top cover 301, and a water inlet pump 10 is fixedly installed on the bottom of the inner wall of the water collection barrel 302, and the output end of the water inlet pump 10 is connected to the clean water chamber; during use, rainwater flows into the water collection barrel 302 through natural flow. When necessary, the water inlet pump 10 can be started to assist the water inlet operation of each water inlet pipe; specifically, the present application also sets an operating station 15 on the ground for controlling and monitoring the overall operation of the collection device.

[0037] In one embodiment, due to the limited storage capacity of the collection tank 1, when the collection tank 1 is full due to heavy rainfall, it is necessary to reduce or stop the water supply to the collection tank 1; in order to control the water flow rate of the water collection cylinder 302, a level gauge for measuring the liquid level is installed inside the collection tank 1, and an adjustment member for adjusting the water flow rate is provided in the middle of the inner wall of the water collection cylinder 302. Figure 2 and Figure 3 The adjusting member includes a rotating gear disc 303, which is rotatably mounted on the top cover 301. The bottom of the rotating gear disc 303 is fixedly connected to a mounting rod 306, and the bottom of the mounting rod 306 is fixedly connected to a plurality of closing plates 307. A plurality of supporting plates 308 are fixedly mounted on the middle of the inner wall of the water collecting cylinder 302. A water collecting port 309 is provided between the plurality of supporting plates 308. A sealing rubber pad is fixedly connected to the bottom of the closing plate 307. The size of the closing plate 307 is larger than the size of the water collecting port 309, so that When the closing plate 307 is aligned with the water collection port 309 by rotating, the water collection port 309 can be completely closed; an adjusting motor 304 is provided on one side of the rotating toothed disc 303, and an adjusting gear 305 is fixedly connected to the output end of the adjusting motor 304. One side of the adjusting gear 305 is meshed with the rotating toothed disc 303. The adjusting motor 304 drives the adjusting gear 305 to rotate to drive the rotating toothed disc 303, the mounting rod 306 and the closing plate 307, and thus the water collection cylinder 302 is closed;

[0038] In order to discharge the water flow after the water collecting cylinder 302 is closed, a diversion pipe is fixedly connected to one side of the water collecting cylinder 302. The connection port between the diversion pipe and the water collecting cylinder 302 is higher than the height of the closing plate 307, so that the water flow in the water collecting cylinder 302 can flow out laterally along the diversion pipe; one end of the diversion pipe is connected to the return component 8, and the return component 8 determines the flow direction of the water flow sent out by the diversion pipe.

[0039] In one embodiment, see Figure 1 In order to improve the rainwater collection capacity of the building and its surrounding area, a plurality of water diversion pipes 503 are fixedly connected to the middle of the diversion pipe, and one end of the water diversion pipe 503 is fixedly connected to the interception and storage component 5, which is set on the downslope surface of the building or the place where water flows together;

[0040] In one embodiment, see Figure 5 The retaining assembly 5 includes a retaining plate 502, the bottom of which is fixedly connected to a mounting plate 501, and the top surface of the retaining plate 502 is inclined to facilitate the flow of water to the top of the retaining plate 502 for easy discharge; a permeable groove 504 is provided on the top of the retaining plate 502, and the bottom of the retaining plate 502 is fixedly connected to the water diversion pipe 503, thereby sending the water into the diversion pipe.

[0041] In one embodiment, see Figure 5 and Figure 6 In order to protect the inner cavity of the retaining plate 502 and prevent dust and debris from blocking the water-permeable groove 504 and the internal structure, an inner lining plate 507 is slidably connected to the top of the inner wall of the retaining plate 502. A number of through openings 506 are opened in the middle of the inner lining plate 507. A push-pull block 505 is fixedly connected to one side of the top of the inner lining plate 507. The push-pull block 505 is set to drive the inner lining plate 507 to move, so that the through opening 506 and the water-permeable groove 504 are misaligned, thereby protecting the inner cavity of the retaining plate 502; when rainwater needs to be retained, the push-pull block 505 is pushed and slid open.

[0042] In one embodiment, see Figure 2 A water outlet assembly and a mud discharge assembly are provided at the upper part of the water storage chamber. The water outlet assembly includes a water outlet cylinder. A water outlet pump 11 is fixedly installed at the bottom of the inner wall of the water outlet cylinder. The output end of the water outlet pump 11 is fixedly connected to a plurality of water outlet pipes 13. When the stored rainwater needs to be utilized, the water outlet pump 11 is started and the rainwater is taken out for utilization through the water outlet pipes 13 arranged at various locations.

[0043] In one embodiment, the mud discharge assembly includes a mud discharge cylinder, a mud discharge pump 12 is fixedly installed at the bottom of the inner wall of the mud discharge cylinder, the input end of the mud discharge pump 12 is fixedly connected to a mud discharge pipe, and the bottom of the mud discharge pipe is extended toward the bottom of the water storage chamber, so as to discharge the water containing a large amount of sludge at the bottom of the water storage chamber, so as to maintain the cleanliness of the rainwater stored in the collection tank 1 for subsequent use.

[0044] In one embodiment, a discharge pipe 7 is provided on one side of the sludge discharge assembly, and a discarding device 6 for discharging sludge and a return flow assembly 8 are provided in the middle of the discharge pipe 7;

[0045] To discharge the sludge, see Figure 4The discarding device 6 includes an outer cover plate, the bottom of the outer cover plate is fixedly connected with a docking sleeve 606, the bottom of the docking sleeve 606 is fixedly connected with a filter box 601, the middle of the inner wall of the filter box 601 is fixedly connected with a filter plate 602, the discharge pipeline 7 includes a segment 1 701 and a segment 2 702, one end of the segment 1 701 is bent downward and passes through the filter plate 602, one end of the segment 2 702 is fixedly connected to one end of the docking sleeve 606, and a discarding pump 603 is fixedly installed at the bottom of the inner wall of the filter box 601. The discarding pump 6 The output end of 03 is fixedly connected to the discarded flow pipe 604, and the top side of the filter box 601 is fixedly connected to the docking sleeve 606 through the filter pipe 605, so that the sludge water sent out by the discharge pipe 7 enters the position below the filter plate 602 in the filter box 601. During the rising process of the liquid level position component, it passes through the filter plate 602, where the sludge is intercepted by the filter plate 602, thereby filtering the sludge. The filtered clean water flows back to the docking sleeve 606 from the filter pipe 605, and is then sent to the subsequent reflux component 8 by segment two 702.

[0046] In one embodiment, see Figure 7 The backflow assembly 8 includes a mounting sleeve 801, the top of the mounting sleeve 801 is fixedly connected to a mounting cover plate 808, and the inner wall of the mounting cover plate 808 is fixedly installed with a detector 809 for detecting water quality, so that the operator can understand the water quality of the stored rainwater; the bottom of the mounting sleeve 801 is fixedly installed with a backflow sleeve 802, and the top of the backflow sleeve 802 is fixedly connected to a guide platform 807. The top of the guide platform 807 is tilted and fixedly connected to a filter screen 803, so as to reduce the resistance of the water flow in the process of flowing through the diversion sleeve, and the bottom of the guide platform 807 is fixedly connected to a partition plate 804, a return water pump 805 is fixedly installed at the bottom of the partition plate 804, and the output end of the return water pump 805 is fixedly connected to the return pipe 806. By setting the return water pump 805 and the water flow pipe, it is started when needed to send relatively clean rainwater back to the bottom of the collection tank 1, thereby impacting the sludge at the bottom of the collection tank 1 and making it float, which is convenient for the sludge discharge operation of the sludge pump 12, and replacing the water in the collection tank 1, that is, replacing the water with more sludge at the bottom of the collection tank 1 with relatively clean water, thereby improving the cleanliness of the stored rainwater, thereby meeting the water needs of garden irrigation and other uses that require higher cleanliness;

[0047] One side of the installation sleeve 801 is connected to the safety diversion well 9 through a connecting pipe. A total amount monitor 14 is fixedly installed in the middle of the connecting pipe to detect the total amount of rainwater discharged.

[0048] In one embodiment, see Figure 2 In order to increase the impact of the water flow and enhance the ability to clean the sludge, one end of the return pipe 806 is fixedly connected to a cleaning piece, which is arranged inside the collection tank 1 and includes a cleaning frame 810. Figure 8 A steering motor is fixedly installed on one side of the inner wall of the cleaning rack 810, and the output end of the steering motor is fixedly connected to a steering sleeve 811, and a water supply trough 812 is provided on one side of the steering sleeve 811, and the other side of the steering sleeve 811 is fixedly connected to the return pipe 806; the steering sleeve 811 is driven to rotate by the steering motor to adjust the direction of the water supply trough 812 to meet the flushing needs of a larger area at the bottom of the collection pool 1.

[0049] The present application discloses a rainwater collection device for buildings that automatically intercepts, purifies, and stores rainwater. The device utilizes the following method for collecting rainwater: When it rains, rainwater is fed from the water inlet well 4 along the water inlet pipe into the water collection barrel 302. The water inlet pump 10 is then activated to feed the water into the clean water chamber. The water then flows through the partition net 2 and disperses into the water storage chamber. Part of the rainwater flows through the interception and storage component 5, passes through the permeable trough 504 and the water diversion pipe 503, and is then fed into the diversion pipe, which then feeds the water collection barrel 302 and the return flow component 8.

[0050] When water is needed, the outlet pump 11 is started to discharge the water in the collection tank 1 through the outlet pipe 13, and the water is connected to the outlet pipe 13 by an external water device to realize the use of the water;

[0051] When the collecting tank 1 is not used for a long time, the sludge impurities in the rainwater in the collecting tank 1 are deposited at the bottom of the collecting tank 1. By starting the sludge pump 12, the muddy water at the bottom of the collecting tank 1 is sent to the discarding device 6, which filters it and then discharges it.

[0052] When the liquid level in the collection tank 1 is too high, the regulating motor 304 is started to drive the regulating dial and the supporting plates 308 to rotate, closing the water collection port 309. After closing, the water flow is sent to the installation sleeve through the diversion pipe. When the collection tank 1 does not need to be refluxed and cleaned, the water flow is discharged to the safety diversion well 9 through the connecting pipe.

[0053] When reflux cleaning is required, the reflux pump is started to send water into the cleaning piece, and then sent out through the water delivery groove 812 on the regulating sleeve to flush the sludge in the collection tank 1 and separate it from the tank wall.

[0054] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A building rainwater collection device that automatically intercepts, purifies and stores rainwater, characterized in that: The invention comprises a collecting tank (1), wherein the inner wall of the collecting tank (1) is fixedly connected to a partition net (2), wherein the partition net (2) divides the inner cavity of the collecting tank (1) into a water storage cavity and a clean water cavity, wherein a water collecting component (3) is provided on the upper part of the clean water cavity, a water inlet well (4) is provided on one side of the water collecting component (3), and a water outlet component and a mud discharge component are provided on the upper part of the water storage cavity; The water outlet assembly comprises a water outlet cylinder, a water outlet pump (11) is fixedly mounted on the bottom of the inner wall of the water outlet cylinder, and a plurality of water outlet pipes (13) are fixedly connected to the output end of the water outlet pump (11); The mud discharge assembly includes a mud discharge cylinder, a mud discharge pump is fixedly installed at the bottom of the inner wall of the mud discharge cylinder, an input end of the mud discharge pump is fixedly connected to a mud discharge pipe, and the bottom of the mud discharge pipe extends to the bottom of the water storage chamber; A discharge pipeline (7) is provided on one side of the sludge discharge assembly, and a discarding device (6) for discharging sludge and a return assembly (8) are provided in the middle of the discharge pipeline (7); the water collection assembly (3) includes a water collection cylinder (302), and a regulating member for regulating the water collection flow is provided in the middle of the inner wall of the water collection cylinder (302); a diversion pipe is fixedly connected to one side of the water collection cylinder (302), one end of the diversion pipe is communicated with the return assembly (8), and a plurality of water diversion pipes (503) are fixedly connected to the middle of the diversion pipe, and one end of the water diversion pipe (503) is fixedly connected to the interception assembly (5); The adjusting member comprises a rotating toothed disc (303), the bottom of the rotating toothed disc (303) is fixedly connected to a mounting rod (306), the bottom of the mounting rod (306) is fixedly connected to a plurality of closing plates (307), a plurality of supporting plates (308) are fixedly installed on the middle portion of the inner wall of the water collecting cylinder (302), and a water collecting port (309) is provided between the plurality of supporting plates (308); an adjusting motor (304) is provided on one side of the rotating toothed disc (303), an output end of the adjusting motor (304) is fixedly connected to an adjusting gear (305), and one side of the adjusting gear (305) is meshedly connected to the rotating toothed disc (303).

2. The automatic rainwater collection device for buildings that intercepts, purifies and stores rainwater according to claim 1 is characterized in that: The retaining assembly (5) comprises a retaining plate (502), the bottom of the retaining plate (502) is fixedly connected to a mounting plate (501), the top surface of the retaining plate (502) is inclined, a water-permeable groove (504) is provided on the top of the retaining plate (502), and the bottom of the retaining plate (502) is fixedly connected to a water diversion pipe (503).

3. The automatic rainwater collection device for buildings that intercepts, purifies and stores rainwater according to claim 2, characterized in that: The top of the inner wall of the retaining plate (502) is slidably connected to an inner lining plate (507), a plurality of openings (506) are opened in the middle of the inner lining plate (507), and a push-pull block (505) is fixedly connected to one side of the top of the inner lining plate (507).

4. The automatic rainwater collection device for buildings that intercepts, purifies and stores rainwater according to claim 1 is characterized in that: The discarding device (6) comprises an outer cover plate, the bottom of the outer cover plate is fixedly connected to a docking sleeve (606), the bottom of the docking sleeve (606) is fixedly connected to a filter box (601), the middle of the inner wall of the filter box (601) is fixedly connected to a filter plate (602), the discharge pipeline (7) comprises a first segment (701) and a second segment (702), one end of the first segment (701) is bent downward and passes through the filter plate (602), one end of the second segment (702) is fixedly connected to one end of the docking sleeve (606), a discarding pump (603) is fixedly installed at the bottom of the inner wall of the filter box (601), the output end of the discarding pump (603) is fixedly connected to a discarding pipe (604), and one side of the top of the filter box (601) is fixedly connected to the docking sleeve (606) via a filter pipe (605).

5. The automatic rainwater collection device for buildings that intercepts, purifies and stores rainwater according to claim 1 is characterized in that: The return assembly (8) comprises a mounting sleeve (801), a return sleeve (802) fixedly mounted on the bottom of the mounting sleeve (801), a guide platform (807) fixedly connected to the top of the return sleeve (802), a filter screen (803) fixedly connected to the top of the guide platform (807), a partition plate (804) fixedly connected to the bottom of the guide platform (807), a return water pump (805) fixedly mounted on the bottom of the partition plate (804), and a return pipe (806) fixedly connected to the output end of the return water pump (805).

6. The automatic rainwater collection device for buildings that intercepts, purifies and stores rainwater according to claim 5, characterized in that: One end of the return pipe (806) is fixedly connected to a cleaning piece, the cleaning piece being arranged inside the collection tank (1), the cleaning piece comprising a cleaning frame (810), a direction adjustment motor being fixedly mounted on one side of an inner wall of the cleaning frame (810), an output end of the direction adjustment motor being fixedly connected to a direction adjustment sleeve (811), a water supply trough (812) being provided on one side of the direction adjustment sleeve (811), and the other side of the direction adjustment sleeve (811) being fixedly connected to the return pipe (806).

7. The automatic rainwater collection device for buildings that intercepts, purifies and stores rainwater according to claim 1 is characterized in that: The water inlet well (4) is connected to the interior of the water collecting cylinder (302) through a water inlet pipe. A water inlet pump (10) is fixedly installed on the bottom of the inner wall of the water collecting cylinder (302). The output end of the water inlet pump (10) is connected to the clean water chamber.

8. A method for collecting rainwater from a building that automatically intercepts, purifies, and stores rainwater according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Rainwater is collected through the water inlet well (4) and the interception and storage component (5) and sent to the collection pool (1); Step 2: When water is needed, start the water outlet pump (11) to discharge the water in the collection tank (1) through the water outlet pipe (13); Step 3: Start the mud discharge pump (12) to send the muddy water at the bottom of the collection tank (1) to the discarding device (6), and the muddy water is filtered and discharged by the discarding device (6); Step 4: The water flow capacity of the water inlet well (4) is adjusted by the regulating member, and the water that cannot pass through is sent to the return flow assembly (8) through the diversion pipe; Step 5: The reflux component (8) discharges or returns the water to the collection tank (1).

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