Urban rainwater collecting and recycling device

Abstract

The utility model discloses an urban rainwater collecting and recycling device which comprises a rainwater collecting channel, a first treating pond, a second treating pond and a third treating pond, the first treating pond, the second treating pond and the third treating pond are communicated with one another and arranged at the bottom of the rainwater collecting channel, a chemical inlet is formed in the upper portion of the second treating pond, and a rotating device is arranged at the bottom of the second treating pond. The rotating device comprises a rotating motor, a rotating rod and a wall scraping blade, the wall scraping blade abuts against the inner side wall of the second treatment pond, and a water pump is arranged on the inner side of the third treatment pond. According to the utility model, the rainwater is primarily filtered through the detachable filter screen of the rainwater collecting channel, is primarily settled through the first treatment tank and enters the second treatment tank, is dissolved and filtered through the dissolving agent and the rotating device, and is scraped off the inner side wall of the second treatment tank through the wall scraping blade of the rotating device, so that the adhesion of impurities is avoided; the sewage treatment device disclosed by the utility model is novel in structure, ingenious in design, high in practicability and suitable for popularization.

Description

Technical Field

[0001] This utility model relates to the field of urban municipal engineering construction technology, and more specifically to an urban rainwater collection and reuse device. Background Technology

[0002] Urban rainwater harvesting and utilization has always been a key focus of urban construction. Urban rainwater harvesting and utilization refers to the collection and utilization of rainwater runoff collected from building rooftops and hardened surfaces such as roads and squares. This runoff is then collected, transported, purified, and stored through various channels. The rainwater is used for greening, landscaping water features, washing, and replenishing groundwater sources, aiming to achieve comprehensive utilization of rainwater resources and water conservation. Therefore, collection and reuse devices are necessary in urban rainwater harvesting. Existing collection and reuse devices have simple structures and relatively limited functions. In actual use, rainwater is usually collected in collection tanks and filtered before storage and utilization. However, the collected rainwater typically contains a large amount of impurities, and the filters are prone to clogging after prolonged use, leading to filtration failure. Furthermore, the filtered impurities cannot be automatically collected, thus reducing the efficiency of the collection and reuse device and affecting the quality of urban construction, becoming a problem that many urban municipal projects urgently need to solve. To address these issues, we propose an urban rainwater harvesting and reuse device. This device uses a multi-layer filtration system in the collection pool to filter the collected rainwater, removing most impurities. This allows the filtered rainwater to be reused for greening, landscape water features, washing, and groundwater sources, thereby improving the quality of urban infrastructure construction.

[0003] To better collect and reuse urban rainwater, the China Patent Network, Publication No. CN116623746A, discloses a recycling device for urban rainwater collection. This invention includes a water storage tank. Magnetic suction devices are fixedly installed on both sides of the inner wall of the tank near the center via bolts. Filter devices are welded to the bottom of the inner cavity of the tank near the front and back. Flow holes are drilled on both sides of the outer surface of the tank near the center and bottom, and these flow holes are connected to the inner cavity of the tank. The invention allows water to flow through an outlet hole to the flow holes located on the upper part of the outer surface of the tank. The flow holes near the center and bottom of the outer surface of the tank are connected by pipes. Rainwater can enter the interior of the tank through the flow holes and come into contact with the filter devices. With the travel plate in its initial position and the filter screen corresponding to the filter holes, the rainwater is filtered as it passes through the filter device, thus removing impurities from the water.

[0004] The solution still has some shortcomings in its application. Due to the diverse composition of impurities in urban rainwater, including various impurities, multiple treatments are required to purify the rainwater, otherwise it will affect its reuse. At the same time, the maintenance of the equipment needs to be considered, and it needs to be easy for sanitation workers to maintain. Therefore, the urban rainwater collection and reuse device needs to be improved so that it can better collect rainwater and remove impurities, while also being easy for sanitation workers to operate. Utility Model Content

[0005] This utility model discloses an urban rainwater collection and reuse device, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An urban rainwater harvesting and reuse device includes a rainwater collection channel, a first treatment pool, a second treatment pool, and a third treatment pool. The first, second, and third treatment pools are interconnected and located at the bottom of the rainwater collection channel. The bottom of the rainwater collection channel has an inclined structure and a first outlet, which is connected to the first treatment pool. The second treatment pool has a chemical inlet at its upper part and a rotating device at its bottom. The rotating device includes a rotating motor, a rotating rod, and a wall scraper blade. The wall scraper blade abuts against the inner wall of the second treatment pool. A water pump is installed at the bottom inner side of the third treatment pool. A water pipe is provided at the outlet of the water pump, and the water pipe extends upward to the road surface.

[0008] Furthermore, the first processing pool, the second processing pool, and the third processing pool are all cylindrical in shape.

[0009] Furthermore, the rainwater collection channel is equipped with a removable cover plate at the top and a removable filter screen in the middle of the rainwater collection channel.

[0010] Furthermore, the upper part of the first treatment tank is provided with an overflow outlet and a second outlet, the overflow outlet being higher than the second outlet, and the second outlet being connected to the second treatment tank.

[0011] Furthermore, the inlet is equipped with an inlet tube that extends upward to the road surface and has an inlet box at the top.

[0012] Furthermore, the second and third treatment tanks are provided with a third water outlet at the top, and the bottom of the third treatment tank is provided with an absorbent cotton layer.

[0013] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0014] This invention first uses a detachable filter screen installed in the middle of the rainwater collection channel to perform initial filtration of rainwater, filtering out leaves and large impurities to prevent them from affecting subsequent rainwater filtration. Next, the rainwater undergoes initial sedimentation filtration in a first treatment tank before entering a second treatment tank. This second treatment tank can accommodate dissolving agents and has a rotating device at the bottom. This device dissolves algae and impurities, while the rotating device's scraping blades scrape the inner wall of the second treatment tank to prevent algae and impurities from adhering. Finally, the rainwater enters a third treatment tank, where it undergoes further sedimentation filtration through an absorbent cotton layer at the bottom, and is then pumped out for reuse. This invention features a novel structure, ingenious design, and strong practicality, effectively collecting, filtering, and reusing urban rainwater, improving the quality of urban infrastructure construction, and is suitable for widespread application. Attached Figure Description

[0015] Figure 1 This is a side view of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the rainwater collection channel of this utility model.

[0017] Figure 3 This is a top view of the second treatment tank of this utility model.

[0018] Figure 4 This is a schematic diagram of the rotating rod and scraping blade of the rotating device of this utility model. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown, an urban rainwater collection and reuse device includes a rainwater collection channel 1, a first treatment pool 2, a second treatment pool 3, and a third treatment pool 4. The first treatment pool 2, the second treatment pool 3, and the third treatment pool 4 are interconnected and located at the bottom of the rainwater collection channel 1. The bottom of the rainwater collection channel 1 has an inclined structure 11 and a first outlet 12, which is connected to the first treatment pool 2. The second treatment pool 3 has a chemical inlet 5 at its upper part and a rotating device 6 at its bottom. The rotating device 6 includes a rotating motor 61, a rotating rod 62, and a wall scraper 63. The wall scraper 63 abuts against the inner wall of the second treatment pool 3. A water pump 7 is installed at the bottom of the inner side of the third treatment pool 4. The water outlet of the water pump 7 is provided with a water pipe 8, which extends upward to the road surface.

[0021] Furthermore, the first processing pool 2, the second processing pool 3, and the third processing pool 4 are all cylindrical in shape.

[0022] Furthermore, the rainwater collection channel 1 is provided with a detachable cover plate 13 at the top and a detachable filter screen 14 in the middle of the rainwater collection channel 1.

[0023] Furthermore, the upper part of the first treatment tank 2 is provided with an overflow outlet 21 and a second outlet 22, the overflow outlet 21 being higher than the second outlet 22, and the second outlet 22 being connected to the second treatment tank 3.

[0024] Furthermore, the medicine inlet 5 is equipped with a medicine inlet tube 51, which extends upward to the road surface and has a medicine inlet box 52 at the top.

[0025] Furthermore, the second treatment tank 3 and the third treatment tank 4 are provided with a third water outlet 9 at the top, and the third treatment tank 4 is provided with an absorbent cotton layer 10 at the bottom.

[0026] [Example]

[0027] First, urban rainwater is collected through rainwater collection channel 1. During collection, it undergoes initial filtration through a removable filter screen 14 in the middle of rainwater collection channel 1, removing some leaves and larger impurities. The rainwater, carrying some smaller impurities and soil, enters the first treatment tank 2, where it undergoes initial sedimentation and purification. The purified rainwater then enters the second treatment tank 3 through the second outlet 22. When the rainfall volume is large, excess rainwater flows out through the overflow outlet 21. Next, a dissolving agent is periodically introduced from the chemical inlet tank 52 and enters through the chemical inlet pipe 51. The rainwater is introduced into the second treatment tank 3, and the rotating motor 61 is started at the same time. The rotating rod 62 stirs the rainwater to facilitate the dissolution of the chemical agent to remove algae and impurities. At the same time, the wall scraping blade 63 at the end of the rotating rod 62 continuously scrapes and washes the inner wall of the second treatment tank 3 to prevent algae and impurities from adhering. Then, after being de-algaed and decontaminated, the rainwater enters the third treatment tank 4. Some small impurities and impurities settle onto the adsorption cotton layer 10 at the bottom of the third treatment tank 4. Finally, the rainwater, after multiple filtrations, is pumped upwards through the water pump 7 and water pipe 8 for reuse.

[0028] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0029] This invention first uses a detachable filter screen installed in the middle of the rainwater collection channel to perform initial filtration of rainwater, filtering out leaves and large impurities to prevent them from affecting subsequent rainwater filtration. Next, the rainwater undergoes initial sedimentation filtration in a first treatment tank before entering a second treatment tank. This second treatment tank can accommodate dissolving agents and has a rotating device at the bottom. This device dissolves algae and impurities, while the rotating device's scraping blades scrape the inner wall of the second treatment tank to prevent algae and impurities from adhering. Finally, the rainwater enters a third treatment tank, where it undergoes further sedimentation filtration through an absorbent cotton layer at the bottom, and is then pumped out for reuse. This invention features a novel structure, ingenious design, and strong practicality, effectively collecting, filtering, and reusing urban rainwater, improving the quality of urban infrastructure construction, and is suitable for widespread application.

[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A device for collecting and reusing urban rainwater, characterized in that: The rainwater collecting channel, the first treatment pool, the second treatment pool and the third treatment pool are communicated with each other and arranged at the bottom of the rainwater collecting channel, the bottom of the rainwater collecting channel is in an inclined structure and is provided with a first water outlet communicated with the first treatment pool, the upper portion of the second treatment pool is provided with a medicine inlet, and the bottom is provided with a rotating device including a rotating motor, a rotating rod and a wall scraping blade abutting against the inner side wall of the second treatment pool, and the inner bottom of the third treatment pool is provided with a water pump, and the water outlet end of the water pump is provided with a water pipe extending upward to the road surface of the road.

2. The urban rainwater collection and reuse device according to claim 1, characterized in that: The first treatment pool, the second treatment pool and the third treatment pool are all in a cylindrical structure.

3. The urban rainwater harvesting and recycling device as claimed in claim 1, wherein: The top of the rainwater collecting channel is provided with a detachable cover plate, and the middle portion of the rainwater collecting channel is provided with a detachable filter screen.

4. The urban rainwater harvesting and recycling device as claimed in claim 1, wherein: The upper portion of the first treatment pool is respectively provided with an overflow outlet and a second water outlet, the overflow outlet is higher than the second water outlet, and the second water outlet is communicated with the second treatment pool.

5. The urban rainwater harvesting and recycling device as claimed in claim 1, wherein: The medicine inlet is provided with a medicine inlet pipe extending upward to the road surface of the road and provided with a medicine inlet box at the top.

6. The urban rainwater harvesting and recycling device as claimed in claim 1, wherein: The upper portion of the second treatment pool and the third treatment pool is provided with a third water outlet, and the bottom of the third treatment pool is provided with an adsorbing cotton layer.

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