Building roof rainwater collecting, purifying and recycling device

By designing collection boxes, opening and closing devices, and guiding devices on the building roof, the problems of limited rainwater collection and pollution were solved, and efficient collection, purification, and storage of rainwater were achieved for utilization.

CN224078536UActive Publication Date: 2026-04-03高劲松
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, the amount of rainwater collected is only slightly affected by the amount of rainfall, and the collection box opening cannot be adjusted, resulting in a large amount of rainwater evaporation and susceptibility to external pollutants entering. Improper storage methods increase the risk of pollution.

Method used

A rainwater collection, purification, and reuse device for building rooftops was designed, including a collection box, an opening and closing device, a guiding device, a discharge device, a conveying pipe, and a filter assembly. The opening and closing device adjusts the opening and closing of the collection box according to the rainfall, the guiding device discharges initial impurities, and the conveying pipe stores the purified rainwater, thus achieving efficient collection and purification of rainwater.

Benefits of technology

It increases the rainwater collection area, reduces evaporation and impurities, and achieves efficient collection, purification and storage of rainwater, thereby improving rainwater utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rainwater recycling, in particular to a building roof rainwater collecting, purifying and recycling device. Comprising a collecting box fixed to a roof, and the top of the collecting box and the horizontal plane of the roof are located at the same position; the opening and closing device is arranged at the upper part of the collecting box; the guiding device is fixed in the collecting box and located below the opening and closing device; the discharging device is connected to the side part of the collecting box; the conveying pipe is connected to the bottom of the collecting box; and the filtering assembly is arranged at the upper part of the storage box and is connected with the collecting box through a conveying pipe. According to the rainwater collection device, the collection box can be opened or closed according to the rainfall capacity, the collection box is gradually opened along with the increase of the rainfall capacity to collect rainwater, and the rainwater is collected or guided and discharged according to different stages of the rainfall.
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Description

Technical Field

[0001] This utility model relates to the field of rainwater recycling technology, and in particular to a device for collecting, purifying and reusing rainwater from building rooftops. Background Technology

[0002] Under the dual pressures of urban water scarcity and worsening water pollution, rainwater, as an important component of water resources, is gradually gaining attention due to its low pollution levels and ease of treatment. Rainwater harvesting and utilization has become a new way to alleviate water scarcity. Currently, rainwater harvesting mainly involves collecting rainwater that hasn't reached the ground during natural rainfall using collection boxes. While this method can maintain the purity of the rainwater, the amount collected is limited by the rainfall volume. Furthermore, the collection box openings restrict the collection process from adjusting to the rainfall amount, preventing sufficient rainwater collection. The collected rainwater is often stored in an open manner, increasing evaporation and the entry of external pollutants. To address the shortcomings of existing technologies, it is necessary to provide a rooftop rainwater harvesting, purification, and reuse device to solve the problems mentioned in the background. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a device for collecting, purifying, and reusing rainwater from building rooftops, comprising:

[0004] A collection box is fixed to the roof, and the top of the collection box is at the same position as the roof horizontal plane;

[0005] The opening and closing device is located at the top of the collection box;

[0006] The guide device is fixed inside the collection box and located below the opening and closing device;

[0007] The discharge device is connected to the side of the collection box;

[0008] The delivery pipe is connected to the bottom of the collection box;

[0009] The filter assembly is located at the top of the storage tank and is connected to the collection tank via a delivery pipe;

[0010] The opening and closing device includes:

[0011] Two support rods are symmetrically distributed and fixed on the inner wall of the collection box, located above the connection between the conveying pipe and the collection box;

[0012] Two movable cover plates are symmetrically distributed and slidably mounted on the support rods on both sides.

[0013] The drive mechanism is set corresponding to the movable cover and is fixed inside the collection box, located below the movable cover;

[0014] The guiding device includes:

[0015] The rotating shaft is located at the top center of the drive mechanism;

[0016] A limiting arc plate is installed corresponding to the bearing rod and fixed to the inner side of the bearing rod;

[0017] The guide panel is fixed on the rotating shaft, and its rotation trajectory is in contact with the limiting arc plate;

[0018] The discharge platform is fixed to the inner wall of the collection box and located below the connection between the discharge device and the collection box.

[0019] In one embodiment, the bottom of the movable cover plate is provided with a moving track parallel to the support rod, and the moving track corresponds to the drive mechanism.

[0020] In one embodiment, the drive mechanism includes:

[0021] The fixed crossbar is fixed at both ends to the bottom of the supporting bar;

[0022] The drive rollers are arranged in two symmetrical sets, with the bottom fixed to the fixed crossbar and the top corresponding to the moving track at the bottom of the movable cover plate.

[0023] In one embodiment, the guide panel has partition plates at both ends, the rotating shaft is rotatably connected to the partition plates, the top of the partition plates is slidably connected to the movable cover plate, the two ends are fixedly connected to the limiting arc plates, and the side is rotatably connected to the guide panel.

[0024] In one embodiment, a drive platform is provided between the partition plate and the drive mechanism, and the drive platform is connected to the rotating shaft to control the rotating shaft and the drive mechanism.

[0025] In one embodiment, the discharge device includes:

[0026] The overflow pipe is fixed to the center of the side of the collection box and is located above the movable cover.

[0027] A discharge channel is connected to the side of the collection box, located between the support rod and the discharge platform, and the top of the discharge channel is connected to the overflow pipe;

[0028] The discharge pipe is fixed to the side of the collection box, and its top is connected to the discharge channel.

[0029] In one embodiment, the filtering assembly has multiple filtering layers.

[0030] The beneficial effects are: 1. This utility model sets the collection box on the roof, and the top of the collection box is flush with the roof. It can not only collect rainwater that falls directly, but also collect rainwater from the roof, increasing the collection range of rainwater and obtaining a large amount of rainwater resources.

[0031] 2. This utility model, through the setting of the opening and closing device, can open or close the collection box according to the rainfall. As the rainfall increases, the collection box is gradually opened to collect rainwater. By setting the guiding device, the rainwater generated at the beginning of the rainfall is discharged, and the subsequent rainwater is guided and collected to prevent the rainwater from bringing in a large amount of impurities when it first passes through the roof.

[0032] 3. This utility model uses a conveying pipe to transport rainwater to the filter assembly for filtration and purification. After the treatment is completed, the rainwater is transported to a storage box for sealed storage, effectively extending the service life of the rainwater. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model.

[0034] Figure 2 This is a schematic diagram of the opening and closing mechanism.

[0035] Figure 3 This is a schematic diagram of the drive mechanism.

[0036] Figure 4 A schematic diagram of the structure when the device is used to guide the discharge of sewage.

[0037] Figure 5 A schematic diagram of the structure for guiding the collection of rainwater.

[0038] Figure 6 This is a schematic diagram of the discharge device.

[0039] Figure 7 This is a schematic diagram of the guiding device.

[0040] The following are labeled in the diagram: 1. Collection box; 2. Opening and closing device; 3. Guiding device; 4. Discharge device; 5. Conveying pipe; 6. Filter assembly; 7. Storage box; 21. Supporting rod; 22. Moving cover plate; 23. Drive mechanism; 31. Rotating shaft; 32. Limiting arc plate; 33. Guide panel; 34. Discharge platform; 35. Divider plate; 36. Drive platform; 41. Overflow pipe; 42. Discharge channel; 43. Discharge pipeline; 221. Moving track; 231. Fixed crossbar; 232. Drive roller. Detailed Implementation

[0041] Please see Figures 1-7 In this embodiment of the utility model, a rainwater collection, purification, and reuse device for building rooftops includes:

[0042] Collection box 1 is fixed to the roof, and the top of collection box 1 is at the same position as the horizontal plane of the roof;

[0043] The opening and closing device 2 is located on the upper part of the collection box 1;

[0044] The guide device 3 is located inside the fixed collection box 1, below the opening and closing device 2;

[0045] Discharge device 4 is connected to the side of collection box 1;

[0046] The delivery pipe 5 is connected to the bottom of the collection box 1;

[0047] The filter assembly 6 is located on the upper part of the storage tank 7 and is connected to the collection tank 1 through the delivery pipe 5.

[0048] In this embodiment, the opening and closing device 2 includes:

[0049] Two support rods 21 are symmetrically distributed and fixed on the inner wall of the collection box 1, and located above the connection between the conveying pipe 5 and the collection box 1.

[0050] Two movable cover plates 22 are symmetrically distributed and slidably mounted on the two side bearing rods 21;

[0051] The drive mechanism 23 is correspondingly provided with the movable cover 22 and is fixed inside the collection box 1, located below the movable cover 22.

[0052] In other words, driven by the drive mechanism 23, the two movable covers 22 move in opposite directions on the support rod 21. When the two movable covers 22 move outward at the same time, they gradually open the top of the collection box 1 to quickly collect rainwater. When the two movable covers 22 move towards the center at the same time, they gradually close the top of the collection box 1 to prevent external debris from entering the collection box 1 during periods without rainfall, which could block the channel and affect the collection of rainwater during rainfall. It should be noted that sensors are installed on the movable covers 22 to monitor the rainwater flow.

[0053] In this embodiment, the bottom of the movable cover plate 22 is provided with a movable track 221 parallel to the support rod 21, and the movable track 221 corresponds to the drive mechanism 23.

[0054] In this embodiment, the driving mechanism 23 includes:

[0055] The fixed crossbar 231 is fixed at both ends to the bottom of the bearing bar 21;

[0056] Two sets of drive rollers 232 are symmetrically distributed. The bottom of the rollers is fixed on the fixed crossbar 231, and the top of the rollers corresponds to the moving track 221 at the bottom of the movable cover plate 22.

[0057] In other words, under the rolling action of the drive roller 232, the drive roller 232 drives the movable cover plate 22 to slide on the support rod 21 through the movable track 221, thereby closing or opening the top of the collection box 1 through the movable cover plate 22.

[0058] In this embodiment, the guiding device 3 includes:

[0059] The rotating shaft 31 is located at the top center of the drive mechanism 23;

[0060] The limiting arc plate 32 is set correspondingly to the bearing rod 21 and fixed on the inner side of the bearing rod 21;

[0061] The guide panel 33 is fixed on the rotating shaft 31, and its rotation trajectory is in contact with the limiting arc plate 32;

[0062] The discharge platform 34 is fixed on the inner wall of the collection box 1 and is located below the connection between the discharge device 4 and the collection box 1.

[0063] In other words, under the rotation of the rotating shaft 31, the guide panel 33 rotates inside the collection box 1. During the rotation, the side of the guide panel 33 that rotates upwards is always in contact with the limiting arc plate 32 to ensure that rainwater flows downwards along the guide panel 33 and prevents leakage. When the side of the guide panel 33 that is at the lower position is in contact with the discharge platform 34, the collection box 1 is in the sewage discharge state, and the rainwater flows from the guide panel 33 to the discharge platform 34 and is discharged through the discharge device 4. When the side of the guide panel 33 that is on the same side as the discharge platform 34 rotates upwards and is in contact with the limiting arc plate 32, the rainwater enters the interior of the collection box 1 directly through the guide panel 33, and then is transported to the filter assembly 6 for filtration through the conveying pipe 5. The rainwater that has been filtered and purified is collected and stored by the storage box 7.

[0064] In this embodiment, the guide panel 33 is provided with partition plates 35 at both ends, the rotating shaft 31 is rotatably connected to the partition plates 35, the top of the partition plates 35 is slidably connected to the movable cover plate 22, the two ends are fixedly connected to the limiting arc plate 32, and the side is rotatably connected to the guide panel 33.

[0065] In other words, under the action of the partition plate 35, the two ends of the guide panel 33 are restricted, and the adjustment range of the two movable covers 22 is between the partition plate 35. By cooperating with the partition plate 35 and the movable covers 22, the flow position of rainwater is restricted, so that rainwater can only flow downward on both sides of the guide panel 33.

[0066] In this embodiment, a drive platform 36 is provided between the partition plate 35 and the drive mechanism 23. The drive platform 36 is connected to the rotating shaft 31 and controls the rotating shaft 31 and the drive mechanism 23.

[0067] In other words, under the driving action of the drive platform 36, the rotating shaft 31 is controlled to rotate, which in turn drives the guide panel 33 to rotate, so that the collection box 1 switches between the sewage discharge state and the rainwater collection state. The drive platform 36 controls the drive roller 232 of the drive mechanism 23 to roll, so as to drive the movable cover 22 to move on the support rod 21 and adjust the top opening of the collection box 1.

[0068] In this embodiment, the discharge device 4 includes:

[0069] The overflow pipe 41 is fixed to the center of the side of the collection box 1 and is located above the movable cover plate 22;

[0070] The discharge channel 42 is connected to the side of the collection box 1, located between the support rod 21 and the discharge platform 34, and the top of the discharge channel 42 is connected to the overflow pipe 41.

[0071] The discharge pipe 43 is fixed to the side of the collection box 1, and its top is connected to the discharge channel 42.

[0072] In other words, when the rainfall is low and there is no need to collect rainwater, a small amount of rainwater will collect on the top of the movable cover plate 22 and then be transported through the overflow pipe 41 and discharged through the drainage pipe 43. When the rainfall is high, the movable cover plate 22 will be opened to collect rainwater, provided that the rainwater collection device is operating normally. Excess rainwater can also be discharged through the overflow pipe 41. When collecting rainwater, the rainwater containing more impurities in the early stage of rainfall will be guided to the discharge platform 34 through the guide panel 33 and discharged through the discharge channel 42. Then the guide panel 33 will be rotated to collect the rainwater, effectively reducing the impurities generated when the rainwater flows through the roof plane.

[0073] In this embodiment, the filter assembly 6 is provided with multiple filtration layers. Rainwater flows into the filter assembly 6 through the delivery pipe 5, and after being purified by the multi-stage filtration of the filter assembly 6, it is sealed and stored in the storage box 7 for later use.

[0074] In practice, when rainfall is low and rainwater collection is unnecessary, a small amount of rainwater collects on the top of the movable cover plate 22, then flows through the overflow pipe 41 and is discharged through the drainage pipe 43. When rainfall is sufficient and rainwater collection is possible, the drive platform 36 first controls the rotating shaft 31 to rotate, which in turn drives the guide panel 33 to rotate. When the guide panel 33 is in contact with the discharge platform 34 on its lower side, the collection box 1 is in the discharge state. Then, the drive platform 36 controls the drive mechanism 23, which drives both movable covers 22 to move outwards simultaneously. The position of the movable covers 22 is controlled by the sensors on the movable covers 22 to determine the rainfall. When the rainfall is heavy, the distance between the two movable covers 22 can be appropriately increased to speed up the collection of rainwater. The top of the collection box 1 is then opened. Afterwards, rainwater flowing across the roof plane flows through the guide panel 33 to the discharge platform 34, and finally is discharged through the discharge device 4. After initial drainage during the initial rainfall, the drive platform 36 controls the rotating shaft 31 to rotate, which in turn drives the guide panel 33 to rotate. The guide panel 33 and the discharge platform 34 rotate upwards on the same side, fitting against the limiting arc plate 32. Rainwater enters the collection box 1 directly through the guide panel 33, and then is transported to the filter assembly 6 for multi-stage filtration through the conveying pipe 5. The filtered and purified rainwater is collected and stored in the storage box 7. When there is no rainfall, the drive mechanism 23 drives the movable cover plate 22 to move towards the center on the support rod 21 to seal the top of the collection box 1, preventing external debris from entering the collection box 1 during periods without rainfall, which could block the channel and affect the collection of rainwater during rainfall.

[0075] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A building roof rainwater collection, purification and recycling device, characterized in that: The utility model relates to a roof rainwater collecting device, including: Collecting box (1) is fixed in roof, and the top of collecting box (1) is at the same position with the roof level surface; Opening and closing device (2) is arranged in the upper portion of collecting box (1); Guide device (3) is fixed in collecting box (1) and is located below opening and closing device (2); Discharge device (4) is connected in the side portion of collecting box (1); Conveying pipe (5) is connected in the bottom of collecting box (1); Filtering assembly (6) is arranged in the upper portion of storage box (7) and is connected with collecting box (1) through conveying pipe (5); The opening and closing device (2) includes: Two bearing rods (21) are symmetrically arranged and are fixed on the inner wall of collecting box (1) and are located above the connecting portion of conveying pipe (5) and collecting box (1); Two movable cover plates (22) are symmetrically arranged and are slidably arranged on the two bearing rods (21); Driving mechanism (23) is arranged corresponding to movable cover plate (22) and is fixed in the inside of collecting box (1) and is located below movable cover plate (22); The guide device (3) includes: Rotary shaft (31) is arranged in the top center of driving mechanism (23); Limiting arc plate (32) is arranged corresponding to bearing rod (21) and is fixed on the inner side of bearing rod (21); Guide panel (33) is fixed on rotary shaft (31) and the rotary track is attached to limiting arc plate (32); Discharge platform (34) is fixed on the inner wall of collecting box (1) and is located below the connecting portion of discharge device (4) and collecting box (1).

2. A building roof rainwater harvesting, purifying and recycling device as claimed in claim 1 wherein: The bottom of movable cover plate (22) is provided with a moving track (221) parallel to bearing rod (21), and the moving track (221) corresponds to driving mechanism (23).

3. A building roof rainwater harvesting, purifying and recycling device as claimed in claim 2 wherein: The driving mechanism (23) includes: Fixed cross bar (231) is fixed on the bottom of bearing rod (21); Two groups of driving rollers (232) are symmetrically arranged, the bottom is fixed on fixed cross bar (231), and the top corresponds to the moving track (221) of the bottom of movable cover plate (22).

4. A building roof rainwater harvesting, purifying and recycling device as claimed in claim 1, wherein: The two ends of guide panel (33) are provided with partition plates (35), the rotary shaft (31) is rotatably connected with the partition plates (35), the top of the partition plates (35) is slidably connected with movable cover plate (22), the two ends are fixedly connected with limiting arc plate (32), and the side is rotatably connected with guide panel (33).

5. A building roof rainwater harvesting, purifying and recycling device as claimed in claim 4 wherein: The driving table (36) is arranged between the partition plates (35) and the driving mechanism (23), the driving table (36) is connected with the rotary shaft (31), and the rotary shaft (31) and the driving mechanism (23) are controlled.

6. A building roof rainwater harvesting, purifying and recycling device as claimed in claim 1 wherein: The discharge device (4) includes: Overflow pipe (41) is fixed in the side center of collecting box (1) and is located above movable cover plate (22); Discharge channel (42) is connected in the side portion of collecting box (1) and is located between bearing rod (21) and discharge platform (34), and the top of discharge channel (42) is connected with overflow pipe (41); Discharge pipeline (43) is fixed in the side portion of collecting box (1) and is connected with discharge channel (42) in the top.

7. A building roof rainwater harvesting, purifying and recycling device as claimed in claim 1 wherein: The filtering assembly (6) is provided with multiple filtering layers.