House rainwater collecting device

By introducing a drive component and cover structure into the rainwater harvesting device, the problem of rainwater soaking in the impurity collection box is solved, achieving separation of impurities from water and convenient cleaning, thus improving the user experience of the rainwater harvesting device and water quality.

CN224281430UActive Publication Date: 2026-05-26CHINA 19TH METALLURGICAL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA 19TH METALLURGICAL CORP
Filing Date
2025-04-21
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing rainwater harvesting devices have problems with impurities in the impurity collection box being soaked by rainwater, leading to rotting and emitting odors.

Method used

A rainwater collection device for houses was designed, which includes a water collection tank, a filter plate, a brush, a water tank and a collection box. The brush is driven by a drive component to push impurities into the slag discharge chamber, and the slag discharge port is sealed by a cover plate to prevent rainwater from entering the collection box. After the impurities and water are separated, the impurities automatically fall into the collection box.

Benefits of technology

It effectively prevents rainwater from soaking impurities, prevents odors from escaping, simplifies the impurity cleaning process, and improves the ease of use of the device and the purity of rainwater.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224281430U_ABST
    Figure CN224281430U_ABST
Patent Text Reader

Abstract

The utility model relates to a house rainwater collecting device, which belongs to the technical field of house rainwater collection and comprises a base, and supporting legs are arranged on the top surface of the base. The water collecting tank is connected to the supporting legs, a partition plate is arranged on the bottom wall of the water collecting tank, an inner cavity of the water collecting tank is divided into a water flowing cavity and a slag discharging cavity through the partition plate, the bottom of the slag discharging cavity penetrates through to form a slag discharging opening, a water drainage pipe communicated with the water flowing cavity is arranged on the bottom wall of the water collecting tank, and a water drainage hole is formed in the side wall of the slag discharging cavity; the filter plate is connected to the partition plate and covers the water flowing chamber; the brush is in lap joint with the top surface of the filter plate, the brush is connected with a driving assembly, and the driving assembly is used for driving the brush to advance on the filter plate; the water tank is mounted on the base and communicated with the drainage pipe; the collecting box is installed on the base, a box opening of the collecting box is located below the slag discharging opening, a cover plate is hinged to the inner wall of the collecting box and connected with a driving part, and when the driving part drives the cover plate to rotate to be horizontal, the cover plate blocks the slag discharging opening from the lower portion.
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Description

Technical Field

[0001] This utility model belongs to the field of rainwater harvesting technology for houses, and specifically relates to a rainwater harvesting device for houses. Background Technology

[0002] Freshwater is essential for people's lives; however, freshwater resources are finite. To conserve freshwater, people typically collect rainwater in their daily lives and use it for flushing toilets or washing hands. To obtain cleaner rainwater, existing technologies have developed devices that can filter rainwater while collecting it. These devices are equipped with a filter screen, which removes impurities (such as leaves) as rainwater passes through. They also include a cleaning mechanism to remove the filtered impurities, and typically a collection box. The cleaning mechanism pushes the impurities from the filter screen into the collection box, which people can then empty periodically.

[0003] In related technologies, the impurity collection box is an open box located directly below the slag discharge port of the rainwater harvesting device. Impurities on the filter screen are pushed to the slag discharge port by a cleaning mechanism and then fall directly into the impurity collection box. However, because the slag discharge port is connected to the interior of the rainwater harvesting device, some of the collected rainwater will also directly enter the impurity collection box through the slag discharge port during use. Therefore, when cleaning the impurity collection box, people often find that it is filled with a lot of rainwater. Furthermore, this rainwater soaks the impurities inside the collection box, causing them to rot and emit an unpleasant odor. Utility Model Content

[0004] This utility model provides a rainwater collection device for houses, which solves the technical problem that impurities in the impurity collection box of existing rainwater collection devices are soaked by rainwater.

[0005] This utility model is achieved through the following technical solution: a rainwater collection device for houses, comprising:

[0006] The base has supporting legs on the top surface;

[0007] A water collection tank is connected to the support leg. The bottom wall of the water collection tank is provided with a partition extending to the middle. The inner cavity of the water collection tank is divided into a water flow chamber and a slag discharge chamber by the partition. The bottom of the slag discharge chamber is formed by a slag discharge port. The outer bottom wall of the water collection tank is also provided with a drain pipe communicating with the water flow chamber. The lower side wall of the slag discharge chamber is provided with a drain hole.

[0008] A filter plate is connected to the partition, and the filter plate covers the water flow chamber;

[0009] A brush is attached to the top surface of the filter plate. The brush is connected to a drive assembly, which drives the brush to move on the filter plate to push impurities on the filter plate into the slag discharge chamber.

[0010] A water tank is installed on the base and is connected to the drain pipe;

[0011] A collection box is installed on the base. The opening of the collection box is located directly below the slag discharge port. A cover plate is hinged to the inner wall of the collection box. The cover plate is connected to a drive unit for driving it to rotate. When the drive unit drives the cover plate to rotate to a horizontal position, the cover plate blocks the slag discharge port from below.

[0012] Furthermore, to better realize this utility model, a straight rod is provided, one end of the cover plate is hinged to the first side wall of the collection box, the first side wall has a first insertion hole, the collection box also includes a second side wall directly opposite the first side wall, the second side wall has a second insertion hole corresponding to the first insertion hole, the straight rod is slidably inserted into the first insertion hole, when the straight rod is inserted into the second insertion hole, the straight rod rests directly below the cover plate, so that the cover plate rotates to a horizontal position;

[0013] A handle is attached to the end of the straight rod, and the handle is located outside the collection box.

[0014] Furthermore, in order to better realize this utility model, the top surface of the base is also provided with a column, the column is supported below the water collection tank, and the column is positioned between the collection box and the water tank. A third insertion hole corresponding to the second insertion hole is opened on the column. When the straight rod is placed directly below the cover plate, the straight rod is inserted into the third insertion hole.

[0015] Furthermore, in order to better realize this utility model, a ball bearing is installed on the top surface of the base, a groove is provided on the bottom surface of the water tank, the ball bearing is rolled in the groove, and a through hole is provided on the top surface of the water tank, the through hole being located directly below the drain pipe.

[0016] Furthermore, in order to better realize this utility model, the third insertion hole is a threaded through hole, and a protrusion is also provided on the top surface of the water tank. The protrusion has a screw hole corresponding to the third insertion hole. When the straight rod is attached to the bottom of the cover plate, the straight rod is screwed to the third insertion hole and the screw hole.

[0017] Furthermore, in order to better realize this utility model, a positioning baffle is provided on the top edge of the base, and the positioning baffle abuts against the outer wall of the water tank.

[0018] Furthermore, in order to better realize this utility model, a perforated plate is also installed in the groove of the water collection tank, and a sandwich is formed between the perforated plate and the filter plate, and the brush is slidably installed in the sandwich.

[0019] Furthermore, to better realize this utility model, the driving component includes:

[0020] A round rod is provided with a first threaded section, a smooth section and a second threaded section. The first threaded section and the second threaded section are respectively located on both sides of the smooth section. The first threaded section and the second threaded section have the same length and opposite directions of rotation. The round rod is rotatably inserted into the wall of the water collection tank.

[0021] Two threaded sleeves are respectively threaded onto the first threaded section and the second threaded section, and a connecting rod is hinged between each threaded sleeve and the brush.

[0022] A handle is mounted on the end of the round rod, and the handle is located outside the water collection tank.

[0023] Furthermore, in order to better realize this utility model, a support block is also provided on the inner wall of the water collection tank, and the support block has a through hole, and the smooth rod section is rotatably inserted into the through hole.

[0024] Furthermore, in order to better realize this utility model, the bottom wall of the water collection tank is also provided with a guide plate located in the water flow chamber, the guide plate being used to guide the water entering the water flow chamber to the drain pipe.

[0025] Compared with the prior art, this utility model has the following advantages:

[0026] The rainwater collection device for houses provided by this utility model collects rainwater by means of a water collection tank. The collected rainwater is filtered out of impurities by a filter plate and then flows into the water flow chamber and finally enters the water tank for storage. The brush is driven by a drive component to move on the filter plate, which pushes the impurities filtered out by the filter plate into the slag discharge chamber. The collection box is used to hold the impurities falling from the slag discharge chamber. A cover plate is hinged to the inner wall of the collection box. The drive unit drives the cover plate to rotate. When the cover plate rotates to a horizontal position under the drive of the drive unit, the cover plate blocks the slag discharge port of the slag discharge chamber from below.

[0027] In practical use, rainwater falls into the collection tank and passes through the filter plate into the flow chamber. The filtered water then drains into the water tank through the drain pipe. After a period of use, the drive assembly moves the brush along the filter plate, pushing impurities onto the filter plate into the slag discharge chamber, preventing clogging. During rain, the drive unit moves the cover plate horizontally, sealing the slag discharge port of the slag discharge chamber. This prevents impurities and water entering the slag discharge chamber from falling into the collection tank; instead, they accumulate on the cover plate. The water flows away through the drain hole on the lower side wall of the slag discharge chamber. After the rain stops, remove the water tank and operate the drive unit to rotate the cover downwards. The impurities accumulated on the cover will automatically fall into the collection box under gravity. Since the water that entered the slag discharge chamber has flowed away through the drain hole, only impurities will enter the collection box. Even if a small amount of water is attached to the surface of the impurities, this amount of water is very small and can be ignored. Therefore, it can prevent rainwater from flowing directly into the collection box and soaking the impurities inside. It is also more convenient to pour out the impurities from the collection box. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the rainwater collection device for houses provided in this embodiment of the utility model;

[0030] Figure 2 yes Figure 1 A cross-sectional view of the rainwater harvesting device for the building shown;

[0031] Figure 3 yes Figure 2 A magnified view of region A in the image;

[0032] Figure 4 yes Figure 1 An exploded view of a rainwater harvesting device for a building is shown.

[0033] Figure 5 This is a schematic diagram of the base structure in an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram of the water collection tank in an embodiment of the present utility model;

[0035] Figure 7 yes Figure 6 A magnified view of region B in the image;

[0036] Figure 8 This is a schematic diagram of the connection structure between the brush and the drive component in an embodiment of this utility model;

[0037] Figure 9 This is a schematic diagram of the water tank in an embodiment of this utility model;

[0038] Figure 10 This is a schematic diagram of the structure of the collection box in an embodiment of this utility model;

[0039] Figure 11 yes Figure 10 The cross-sectional view of the collection box shown.

[0040] In the picture:

[0041] 100-Base, 110-Support leg, 120-Column, 121-Third insertion hole, 130-Ball bearing, 140-Positioning baffle, 200-Water collection tank, 210-Baffle plate, 220-Flow chamber, 230-Slag discharge chamber, 240-Drain pipe, 250-Drain hole, 260-Support block, 261-Through hole, 270-Guide inclined plate, 300-Filter plate, 400-Brush, 500-Drive assembly, 510-Circular Rod, 511-First threaded section, 512-Smooth rod section, 513-Second threaded section, 520-Threaded sleeve, 530-Connecting rod, 540-Handle, 600-Water tank, 610-Slide groove, 620-Through hole, 630-Protrusion, 631-Threaded hole, 700-Collection box, 710-Cover plate, 720-First insertion hole, 730-Second insertion hole, 800-Drive unit, 810-Straight rod, 820-Handle, 900-Mesh plate. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] Example:

[0044] like Figures 1-11 As shown, the rainwater harvesting device for houses provided in this embodiment includes a base 100, a water collection tank 200, a filter plate 300, a brush 400, a water tank 600, and a collection box 700, wherein:

[0045] The base 100 has a support leg 110 on its top surface, and the bottom surface of the base 100 is flat to allow the entire device to be placed flat on the ground. Specifically, when it rains, the device is moved to an open space or under the eaves to collect rainwater.

[0046] The water collection trough 200 is connected to the support leg 110, thereby using the support leg 110 to lift the water collection trough 200 away from the base 100. The top of the water collection trough 200 forms a water collection port, and a hopper is also provided at the top of the water collection trough 200. The hopper connects with the water collection port, making it easier to collect rainwater. Specifically, rainwater enters the interior of the water collection trough 200 after passing through the hopper and the water collection port. The bottom wall of the water collection trough 200 is provided with a partition 210 extending to its middle. The interior of the water collection trough 200 is divided into a water flow chamber 220 and a slag discharge chamber 230 by the partition 210. Of course, there is also a certain cavity above the water flow chamber 220 and the slag discharge chamber 230. The bottom of the slag discharge chamber 230 is formed by a slag discharge port. A drain pipe 240 communicating with the water flow chamber 220 is also provided on the outer bottom wall of the water collection tank 200. A drain hole 250 is provided on the lower side wall of the slag discharge chamber 230. In this embodiment, the volume of the water flow chamber 220 is larger than that of the slag discharge chamber 230. Specifically, the volume ratio of the water flow chamber 220 to the slag discharge chamber 230 can be set to 10:1. That is, in the water collection tank 200, the majority of the area is the water flow chamber 220, and only a small portion is the slag discharge chamber 230. A filter plate 300 is connected to the partition 210 and covers the aforementioned water flow chamber 220. Rainwater entering the collection tank 200 falls directly onto the filter plate 300, thus filtering out impurities. The filtered rainwater then flows into the water flow chamber 220 and eventually drains away through the drain pipe 240. A water tank 600 is mounted on the base 100 and is connected to the drain pipe 240, allowing the drain pipe 240 to temporarily store the filtered rainwater in the water tank 600.

[0047] A brush 400 is attached to the top surface of the filter plate 300. The brush 400 is connected to a drive assembly 500, which drives the brush 400 to move on the filter plate 300, thereby pushing impurities on the filter plate 300 into the slag discharge chamber 230. A collection box 700 is installed on the base 100. The opening of the collection box 700 is located directly below the slag discharge port. A cover plate 710 is hinged to the inner wall of the collection box 700. The cover plate 710 is connected to a drive unit 800 for driving its rotation. The drive unit 800 can drive the cover plate 710 to rotate in the vertical plane. When the drive unit 800 drives the cover plate 710 to rotate to the horizontal, the cover plate 710 blocks the slag discharge port from below. When it rains, the drive unit 800 drives the cover plate 710 to rotate to a horizontal position, thereby blocking the slag discharge port from below. This allows some rainwater entering the water collection tank 200 to fall directly into the slag discharge chamber 230. Because the cover plate 710 blocks the slag discharge port, the water remains in the slag discharge chamber 230 and cannot enter the collection box 700. Since the lower side wall of the slag discharge chamber 230 has a drain hole 250, the water in the slag discharge chamber 230 will drain away through the drain hole 250. After the rain stops, the water tank 600 is removed, and the drive assembly 500 drives the brush 400 to move along the filter plate 300, thereby... Impurities on the filter plate 300 are pushed into the slag discharge chamber 230. When the rain stops and the impurities need to be removed, the drive unit 800 drives the cover plate 710 to rotate downwards. The impurities accumulated on the cover plate 710 automatically fall into the collection box 700 under the action of gravity. Since the water entering the slag discharge chamber 230 has flowed away through the drain hole 250, only impurities will enter the collection box 700. Even if a small amount of water is attached to the surface of the impurities, this amount of water is very small and can be ignored. Therefore, it can prevent rainwater from flowing directly into the collection box 700 and soaking the impurities in it, and it is more convenient to pour out the impurities in the collection box 700.

[0048] Of course, drainage holes can also be set on the lower side wall of the collection box 700 to still prevent impurities from being soaked in rainwater. However, since water may be attached to the surface of the impurities in the collection box 700, the collection box 700 may shake during the handling process, and water may flow out from the drainage holes on the side wall of the collection box 700 and wet the clothes of the handlers. Therefore, it is inconvenient to use.

[0049] Optionally, the drive unit 800 for rotating the cover 710 includes a straight rod 810 and a handle 820. The handle 820 is connected to one end of the straight rod 810 for easy operation by the user. One end of the cover 710 is hinged to a first side wall of the collection box 700. The first side wall has a first insertion hole 720. The collection box 700 also includes a second side wall opposite to the first side wall. The second side wall has a second insertion hole 730 corresponding to the first insertion hole 720. The straight rod 810 is slidably inserted into the first insertion hole 720. When the straight rod 810 is inserted into the second insertion hole 730, the straight rod 810 overlaps directly below the cover 710, so that the cover 710 rotates to a horizontal position. It is easy to understand that when the cover plate 710 is kept horizontal, the straight rod 810 provides support for the cover plate 710 from below. When the straight rod 810 is inserted into both the first insertion hole 720 and the second insertion hole 730, it can better support the cover plate 710. Moreover, at this time, the rod is equivalent to locking the cover plate 710 from below.

[0050] When it is necessary to open the cover 710, grasp the handle 820 and pull it outwards, causing the straight rod 810 to disengage from the second insertion hole 730. When the straight rod 810 is pushed out to its front end and enters the first insertion hole 720, the bottom of the cover 710 loses support, and the cover 710 will automatically rotate downwards around the hinge. When it is necessary to close the cover 710, insert the straight rod 810 into the first insertion hole 720, with the front end of the straight rod 810 fixed on the cover 710. As the straight rod 810 continues to move forward, it will drive the cover 710 to rotate upwards until it is horizontal and contacts the bottom surface of the water collection tank 200, thereby sealing the slag discharge port. The drive unit 800 of this structure is simple in structure, easy to use, and ensures that the cover 710 stably seals the slag discharge port. In addition, the handle 820 is located outside the collection box 700 for easy operation by the user.

[0051] Of course, the aforementioned drive unit 800 can also be a waterproof motor, and the hinge shaft connecting the cover plate 710 and the collection box 700 is connected to the rotating shaft of the waterproof motor, thereby using the waterproof motor to drive the hinge shaft to rotate, and thus drive the cover plate 710 to rotate. However, in this case, a power supply is required to power the water discharge motor.

[0052] More preferably, in this embodiment, a column 120 is also provided on the bottom surface of the base 100. The column 120 is supported below the water collection tank 200, thereby making the structure of the entire device more stable. The column 120 is spaced between the collection box 700 and the water tank 600. A third insertion hole 121 corresponding to the second insertion hole 730 is opened on the column 120. When the straight rod 810 is placed directly below the cover plate 710, the straight rod 810 is inserted into the third insertion hole 121. In this way, the straight rod 810 can better lock the cover plate 710 at the slag discharge port, so that the cover plate 710 can bear a greater weight.

[0053] Optionally, the third insertion hole 121 is a threaded through hole, and the straight rod 810 is screwed into the third insertion hole 121, so that the collection box 700 and the column 120 are detachably connected together.

[0054] Optionally, a through hole 620 is provided on the top surface of the water tank 600, located directly below the drain pipe 240, thus connecting the water tank 600 to the drain pipe 240. A ball bearing 130 is installed on the top surface of the base 100, and a sliding groove 610 is provided on the bottom surface of the water tank 600. The ball bearing 130 rolls within the sliding groove 610. Notably, there are multiple ball bearings 130, divided into two groups. Each group of ball bearings 130 is arranged in a straight line on the top surface of the base 100. There are two sliding grooves 610 on the bottom surface of the water tank 600, each corresponding to one of the two groups of ball bearings. With the help of the ball bearings 130, the user can more easily move the water tank 600 on the base 100. Furthermore, the cooperation between the ball bearing groups and the sliding grooves 610 also provides a certain degree of positioning for the water tank 600 on the base 100.

[0055] A protrusion 630 is also provided on the top surface of the water tank 600. The protrusion 630 has a screw hole 631 corresponding to the third insertion hole 121. When the straight rod 810 is placed directly below the cover plate 710, the straight rod 810 is screwed into the third insertion hole 121 and the screw hole 631. Specifically, when it is necessary for the cover plate 710 to cover the slag discharge port, the straight rod 810 is first inserted into the first insertion hole 720, then the straight rod 810 is inserted into the second insertion hole 730, and then the straight rod 810 is turned so that the straight rod 810 is turned into the third insertion hole 121. If the water tank 600 is moved into place on the base 100, the screw hole 631 corresponds to the third insertion hole 121. Therefore, if the straight rod 810 is turned further, the straight rod 810 will be inserted into the screw hole 631. In this way, the collection box 700 and the water tank 600 are connected to the column 120 by the straight rod 810, so that the water tank 600 and the collection box 700 are more securely connected in the device. When it is necessary to remove the water tank 600 and / or the collection box 700, the straight rod 810 is unscrewed.

[0056] In order to enable the water tank 600 to move accurately to the designated position on the base 100 (that is, the position corresponding to the screw hole 631 and the third insertion hole 121), in this embodiment, a positioning baffle 140 is also provided on the top edge of the base 100. When the water tank 600 moves to the designated position, the positioning baffle 140 blocks the water tank 600 from the rear, that is, the positioning baffle 140 abuts against the outer wall of the water tank 600.

[0057] An optional implementation of this embodiment is as follows: A perforated plate 900 is also installed in the opening of the water collection tank 200, forming an interlayer between the perforated plate 900 and the filter plate 300, and a brush 400 is slidably installed in the interlayer. In this way, the perforated plate 900 and the filter plate 300 form a double-layer filtration assembly, thereby better filtering impurities and making the water entering the water tank 600 purer.

[0058] Optionally, the drive assembly 500 includes a round rod 510, two threaded sleeves 520, and a handle 540, wherein:

[0059] The round rod 510 has a first threaded section 511, a smooth section 512, and a second threaded section 513. The first threaded section 511 and the second threaded section 513 are located on opposite sides of the smooth section 512. The first threaded section 511 and the second threaded section 513 are of the same length, and their directions of rotation are opposite. In this case, the round rod 510 is actually a double-ended screw. The round rod 510 is rotatably inserted into the wall of the water collection tank 200. It should be noted that the rotatable insertion method of the round rod 510 into the wall of the water collection tank 200 is existing technology, so it will not be described in detail here. Essentially, it is a rod body rotatably inserted into a plate. Specifically, a bearing can be sleeved on the round rod 510, and the bearing is mounted in a bearing seat, which is installed in a mounting hole on the wall of the water collection tank 200. The goal is simply to allow the round rod 510 to rotate within the water collection tank 200. Two threaded sleeves 520 are respectively screwed onto the first threaded section 511 and the second threaded section 513. A connecting rod 530 is hinged between each threaded sleeve 520 and the brush 400. Thus, when the user needs to use the brush 400 to clean impurities on the filter plate 300, the round rod 510 is rotated, causing the two threaded sleeves 520 to move closer or further apart. When the two threaded sleeves 520 are closer, the brush 400 is pushed towards the slag discharge chamber 230; when the two threaded sleeves 520 are closer, the brush 400 is pulled away from the slag discharge chamber 230. To prevent the round rod 510 from driving the threaded sleeves 520 and the brush 400 to rotate, in this embodiment, the top surface of the brush 400 slides against the bottom surface of the perforated plate 900. To facilitate rotation of the round rod 510, a handle 540 is installed at the end of the round rod 510, located outside the water collection tank 200.

[0060] Of course, the drive component 500 in this embodiment can also be an electric telescopic rod, which is also electrically connected to the power source. The telescopic end of the electric telescopic rod is connected to the brush 400, so that the electric telescopic rod can be used to push and pull the brush 400, thereby causing the brush 400 to move on the top surface of the filter plate 300.

[0061] More preferably, a support block 260 is provided on the inner wall of the water collection tank 200. The support block 260 has a through hole 261, and the smooth rod section 512 is rotatably inserted into the through hole 261. In this way, the round rod 510 can rotate more smoothly.

[0062] An optional implementation of this embodiment is as follows: A guide plate 270 located within the water flow chamber 220 is further provided on the bottom wall of the water collection tank 200. The guide plate 270 is used to guide the water entering the water flow chamber 220 to the drain pipe 240. In this way, the rainwater in the water flow chamber 220 can flow into the drain pipe 240 more concentratedly, and finally into the water tank 600. In this embodiment, there is a gap between the top surface of the water tank 600 and the bottom surface of the water collection tank 200. During heavy rain, if the water tank 600 is full of water, the excess water can flow away through this gap.

[0063] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rainwater harvesting device for a building, characterised in that, include: The base (100) has a support leg (110) on its top surface; A water collection tank (200) is connected to the support leg (110). The bottom wall of the water collection tank (200) is provided with a partition (210) extending to its middle. The inner cavity of the water collection tank (200) is divided into a water flow chamber (220) and a slag discharge chamber (230) by the partition (210). The bottom of the slag discharge chamber (230) is formed by a slag discharge port. The outer bottom wall of the water collection tank (200) is also provided with a drain pipe (240) communicating with the water flow chamber (220). The lower side wall of the slag discharge chamber (230) is provided with a drain hole (250). A filter plate (300) is connected to the partition plate (210), and the filter plate (300) covers the water flow chamber (220); A brush (400) is attached to the top surface of the filter plate (300). The brush (400) is connected to a drive assembly (500). The drive assembly (500) is used to drive the brush (400) to move on the filter plate (300) to push the impurities on the filter plate (300) into the slag discharge chamber (230). A water tank (600) is installed on the base (100), and the water tank (600) is connected to the drain pipe (240); A collection box (700) is installed on the base (100). The opening of the collection box (700) is located directly below the slag discharge port. A cover plate (710) is hinged to the inner wall of the collection box (700). The cover plate (710) is connected to a drive unit (800) for driving it to rotate. When the drive unit (800) drives the cover plate (710) to rotate to a horizontal position, the cover plate (710) blocks the slag discharge port from below.

2. The rainwater collection device for houses according to claim 1, characterized in that, The drive unit (800) includes: A straight rod (810) is provided. One end of the cover plate (710) is hinged to the first side wall of the collection box (700). The first side wall has a first insertion hole (720). The collection box (700) also includes a second side wall directly opposite the first side wall. The second side wall has a second insertion hole (730) corresponding to the first insertion hole (720). The straight rod (810) is slidably inserted into the first insertion hole (720). When the straight rod (810) is inserted into the second insertion hole (730), the straight rod (810) rests directly below the cover plate (710) so that the cover plate (710) rotates to a horizontal position. A handle (820) is attached to the end of the straight rod (810) and is located outside the collection box (700).

3. The rainwater collection device for houses according to claim 2, characterized in that: The top surface of the base (100) is also provided with a column (120), which is supported below the water collection tank (200) and is spaced between the collection box (700) and the water tank (600). The column (120) is provided with a third insertion hole (121) corresponding to the second insertion hole (730). When the straight rod (810) is placed directly below the cover plate (710), the straight rod (810) is inserted into the third insertion hole (121).

4. The rainwater collection device for houses according to claim 3, characterized in that: A ball bearing (130) is installed on the top surface of the base (100), and a groove (610) is provided on the bottom surface of the water tank (600). The ball bearing (130) is rolled in the groove (610). A through hole (620) is provided on the top surface of the water tank (600), and the through hole (620) is located directly below the drain pipe (240).

5. The rainwater harvesting device for houses according to claim 4, characterized in that: The third insertion hole (121) is a threaded through hole. A protrusion (630) is also provided on the top surface of the water tank (600). The protrusion (630) has a screw hole (631) corresponding to the third insertion hole (121). When the straight rod (810) is attached to the bottom of the cover plate (710), the straight rod (810) is screwed to the third insertion hole (121) and the screw hole (631).

6. The rainwater harvesting device for houses according to claim 5, characterized in that: The top edge of the base (100) is also provided with a positioning baffle (140), which abuts against the outer wall of the water tank (600).

7. The rainwater harvesting device for houses according to any one of claims 1-6, characterized in that: A perforated plate (900) is also installed in the opening of the water collection tank (200), and a sandwich is formed between the perforated plate (900) and the filter plate (300), and the brush (400) is slidably installed in the sandwich.

8. The rainwater harvesting apparatus of claim 7, wherein, The drive component (500) includes: A round rod (510) is provided with a first threaded section (511), a smooth section (512) and a second threaded section (513). The first threaded section (511) and the second threaded section (513) are respectively located on both sides of the smooth section (512). The first threaded section (511) and the second threaded section (513) have the same length and opposite directions of rotation. The round rod (510) is rotatably inserted into the wall of the water collection tank (200). Two threaded sleeves (520) are respectively threaded to the first threaded section (511) and the second threaded section (513), and each threaded sleeve (520) is hinged to the brush (400) with a connecting rod (530); A handle (540) is installed at the end of the round rod (510), and the handle (540) is located outside the water collection tank (200).

9. The rainwater harvesting device for houses according to claim 8, characterized in that: A support block (260) is also provided on the inner wall of the water collection tank (200). The support block (260) has a through hole (261), and the smooth rod section (512) is rotatably inserted into the through hole (261).

10. The rainwater harvesting device for houses according to any one of claims 1-6, characterized in that: The bottom wall of the water collection tank (200) is also provided with a guide plate (270) located in the water flow chamber (220), and the guide plate (270) is used to guide the water entering the water flow chamber (220) to the drain pipe (240).