Construction site rainwater recycling device with front filtering structure

Abstract

The utility model relates to the field of rainwater recycling, and discloses a construction site rainwater recycling device with a front filtering structure, which comprises a rainwater collecting tank, a connecting frame body is fixedly mounted on the right side of the rainwater collecting tank, and a front filtering tank is fixedly mounted on one side, far away from the rainwater collecting tank, of the connecting frame body; a filtering mechanism is arranged in the front filtering tank, a plurality of rainwater pipelines are fixedly mounted on the side of the front filtering tank, and when a coarse filtering plate and a fine filtering through hole are partially shielded, rainwater entering a filtering and collecting cover can enter a drainage barrel through the coarse filtering through hole and a fine filtering through hole II, so that the rainwater can be conveniently and continuously drained; according to the device, through the filtering and collecting cover, multi-stage filtering treatment can be conveniently conducted on rainwater, meanwhile, the filtering and collecting cover is convenient to disassemble for cleaning and maintenance, and convenience and flexibility are improved.

Description

Technical Field

[0001] This application belongs to the field of rainwater recycling technology, specifically a construction site rainwater recycling device with a pre-filter structure. Background Technology

[0002] Construction site rainwater recycling refers to the collection of rainwater at construction sites through the construction of rainwater collection systems, such as rainwater collection ponds and drainage ditches. After simple treatment such as sedimentation and filtration, the rainwater is used for dust suppression, vehicle washing, concrete curing, and greening irrigation. This aims to save water, reduce construction costs, reduce dependence on municipal water supply, and alleviate pressure on urban drainage systems. It also helps to achieve environmental protection and sustainable development in construction.

[0003] For example, the utility model patent with announcement number CN217921671U discloses a construction site rainwater recycling device with a pre-filtration structure, including a water storage tank. The water storage tank has an installation groove in the middle for embedding a primary filtration mechanism. The construction site rainwater recycling device with a pre-filtration structure is composed of a water storage tank, a primary filtration mechanism, and an outlet filtration mechanism. Through the through connection between the primary filtration mechanism and the outlet filtration mechanism, and the setting of two sets of inclined primary filtration screens at the upper end of the primary filtration mechanism, the water sent to the outlet pump and the outlet filtration mechanism can be stably pre-filtered to avoid the accumulation of particles in the water storage tank causing blockage to the outlet pump and the through pipe. In addition, the layered filtration of the first and second filter plates in the filtration chamber and the setting of activated carbon and purification core inside the purification screen can stably purify and filter the water effluent from the water storage tank, so as to achieve stable anti-clogging purification treatment for the recycling of water in the water storage tank.

[0004] However, in actual use, it was discovered that the device achieves rainwater filtration through the cooperation of a primary filtration mechanism and an outlet filtration mechanism for subsequent use.

[0005] However, the primary filtration mechanism of this device is installed inside the water storage tank, which makes the primary filter screen plate very easy to be clogged by large debris. Moreover, because it is located inside the water storage tank, cleaning and maintenance are extremely inconvenient. Therefore, a construction site rainwater recycling device with a pre-filtration structure is provided. Utility Model Content

[0006] The purpose of this application is to provide a construction site rainwater recycling device with a pre-filter structure in order to solve the problems mentioned above.

[0007] The technical solution adopted in this application is as follows: a construction site rainwater recycling device with a pre-filter structure, including a rainwater collection tank, a connecting frame fixedly installed on the right side of the rainwater collection tank, a pre-filter tank fixedly installed on the side of the connecting frame away from the rainwater collection tank, a filtration mechanism is provided inside the pre-filter tank, and multiple rainwater pipes are fixedly installed on the side of the pre-filter tank.

[0008] The filtration mechanism includes a limiting frame plate, a filter collection hood, a drainage cylinder, a coarse filter plate, coarse filter holes, fine filter through holes one and two. The limiting frame plate is fixedly installed on the inner side wall of the pre-filter tank. The filter collection hood is arranged inside the limiting frame plate. The drainage cylinder is fixedly installed through the bottom surface of the filter collection hood. The coarse filter plate is arranged inside the filter collection hood. Multiple coarse filter holes are arranged in an evenly spaced array on the outer surface of the drainage cylinder. Multiple fine filter through holes one are arranged near the bottom edge of the filter collection hood. Multiple fine filter through holes two are arranged in an evenly spaced array on the outer surface of the drainage cylinder below the coarse filter holes.

[0009] In a preferred embodiment, a sludge discharge pipe is fixedly installed on the inner bottom surface of the pre-filter tank, a connecting pipe is fixedly installed at one end of the sludge discharge pipe, one end of the connecting pipe extends to the outside of the pre-filter tank, a manual valve is fixedly installed on the outer surface of the end of the connecting pipe extending to the outside of the pre-filter tank, and the end of the connecting pipe extending to the outside of the pre-filter tank is connected to an external sludge suction pump.

[0010] In a preferred embodiment, a water pump is fixedly installed on one side of the pre-filter tank inside the connecting frame, with the inlet end of the water pump extending into the interior of the pre-filter tank and the outlet end of the water pump extending into the interior of the rainwater collection tank.

[0011] In a preferred embodiment, a rectangular support frame is fixedly installed near the inner top wall of the rainwater collection tank, and a shield is provided above the rectangular support frame.

[0012] In a preferred embodiment, a rectangular support frame 2 is fixedly installed near the top inner wall of the pre-filter tank, and a grate is provided above the rectangular support frame 2.

[0013] In a preferred embodiment, a cleaning pipe is fixedly installed on the outer surface of one end of the connecting pipe extending to the outside of the pre-filter tank, and the cleaning pipe is connected to an external flushing pump.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In this application, due to the adoption of the above-mentioned scheme, rainwater enters the interior of the pre-filter tank through the rainwater pipe and falls into the interior of the filter collection hood. This facilitates the initial filtration by the coarse filter plate inside the filter collection hood, causing larger impurities to remain on it, while smaller impurities and liquid move downwards. At this point, further filtration of impurities can be achieved by passing through the fine filter through-hole one, allowing smaller impurities to remain while the liquid is discharged. This facilitates multi-stage filtration of rainwater. When the coarse filter plate and part of the fine filter through-hole are blocked, the rainwater entering the filter collection hood will enter the interior of the drainage cylinder through the coarse filter through-hole and the fine filter through-hole two. This facilitates the continuous discharge of rainwater and minimizes the risk of the filter plate being blocked and unable to drain. This device facilitates multi-stage filtration of rainwater through the filter collection hood. At the same time, the filter collection hood is easy to disassemble for cleaning and maintenance, improving convenience and flexibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the side section structure of this application;

[0018] Figure 3 This is a schematic diagram of the filter collection cover without installation in this application;

[0019] Figure 4 This is a schematic diagram of the sludge discharge pipe structure of this application.

[0020] The diagram shows the following markings: 1. Rainwater collection tank; 2. Connecting frame; 3. Pre-filter tank; 4. Filtration mechanism; 401. Limiting frame plate; 402. Filter collection cover; 403. Drainage cylinder; 404. Coarse filter plate; 405. Coarse filter through hole; 406. Fine filter through hole one; 407. Fine filter through hole two; 5. Rainwater pipe; 6. Sludge discharge pipe; 7. Connecting pipe; 8. Water pump; 9. Rectangular support frame one; 10. Baffle plate; 11. Rectangular support frame two; 12. Grate; 13. Cleaning pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] refer to Figure 1 , Figure 2 and Figure 3A construction site rainwater recycling device with a pre-filter structure includes a rainwater collection tank 1. A rectangular support frame 9 is fixedly installed near the inner side wall of the rainwater collection tank 1. A baffle plate 10 is set above the rectangular support frame 9. The baffle plate 10 can effectively block external debris, such as leaves and dust, from falling directly into the rainwater collection tank 1, reducing the accumulation of impurities in the tank, reducing subsequent cleaning and maintenance costs, and also reducing rainwater evaporation to a certain extent, thus improving rainwater collection efficiency.

[0023] refer to Figure 1 , Figure 2 and Figure 3 A connecting frame 2 is fixedly installed on the right side of the rainwater collection tank 1. A pre-filter tank 3 is fixedly installed on the side of the connecting frame 2 away from the rainwater collection tank 1. A rectangular support frame 2 11 is fixedly installed on the inner side wall of the pre-filter tank 3 near the top. A grate 12 is set above the rectangular support frame 2 11. The grate 12 can initially intercept larger debris such as branches and large pieces of garbage in the rainwater flowing into the pre-filter tank 3, preventing them from entering the filtration mechanism 4 and preventing these large debris from clogging or damaging the filtration components. At the same time, the grate 12 also makes it convenient for personnel to place small tools or carts on it for rinsing. The rinsed liquid can be re-entered into the interior of the pre-filter tank 3 for treatment and reuse, improving its practicality.

[0024] refer to Figure 1 , Figure 2 The pre-filter tank 3 is equipped with a filtration mechanism 4. Multiple rainwater pipes 5 are fixedly installed on the side of the pre-filter tank 3. A water pump 8 is fixedly installed on one side of the pre-filter tank 3 inside the connecting frame 2. The inlet end of the water pump 8 extends into the interior of the pre-filter tank 3, and the outlet end of the water pump 8 extends into the interior of the rainwater collection tank 1. The rainwater pipes 5 facilitate the introduction of rainwater from various parts of the construction site into the interior of the pre-filter tank 3. The water pump 8 can pump the rainwater filtered by the pre-filter tank 3 to the rainwater collection tank 1, realizing the effective collection and transportation of rainwater and ensuring the smooth operation of the recycling process.

[0025] A control box is installed on one side of the rainwater collection tank 1. A liquid pump is installed on the top surface of the baffle plate 10. This liquid pump is used to extract the liquid stored inside the rainwater collection tank 1 for use. An ultrasonic level sensor is installed on the top of the baffle plate 10. Its function is to measure the liquid level inside the rainwater collection tank 1. A water level sensor is installed on one side of the filter tank 3 to monitor the water level inside the filter tank 3. The ultrasonic level sensor, water level sensor, water pump 8, and other control components are all electrically connected to the control box. Among them, the ultrasonic level sensor and water level sensor are responsible for collecting the corresponding water level data. The water level information in the pool is transmitted to the control box. The water pump 8 is used to pump the rainwater filtered by the pre-filter pool 3 to the rainwater collection pool 1. The liquid pump is responsible for extracting the rainwater stored in the rainwater collection pool 1. The control box intelligently controls the water pump and the liquid pump based on the water level signals received from the ultrasonic liquid level sensor and the water level sensor to ensure the stable and efficient operation of the entire rainwater recycling device on the construction site. The ultrasonic liquid level sensor, the water level sensor, the water pump 8 and the liquid pump are all existing structures. This application only uses them without improving their structure, so they will not be described in detail here.

[0026] refer to Figure 1 , Figure 2 and Figure 3 The filtration mechanism 4 includes a limiting frame plate 401, a filter collection cover 402, a drainage cylinder 403, a coarse filter plate 404, coarse filter holes 405, a fine filter through hole one 406, and a fine filter through hole two 407. The limiting frame plate 401 is fixedly installed on the inner side wall of the pre-filter tank 3, and the filter collection cover 402 is provided inside the limiting frame plate 401. The limiting frame plate 401 can provide stable support and limit the filter collection cover 402, ensuring that its position in the pre-filter tank 3 is fixed and does not shift during the rainwater filtration process, thus ensuring the stability and continuity of the filtration work.

[0027] refer to Figure 1 , Figure 2 and Figure 3A drain cylinder 403 is fixedly installed inside the bottom surface of the filter collection cover 402. A coarse filter plate 404 is installed inside the filter collection cover 402. Multiple coarse filter holes 405 are evenly spaced on the outer surface of the drain cylinder 403. Multiple fine filter through-holes 406 are opened near the bottom edge of the filter collection cover 402. Multiple fine filter through-holes 407 are evenly spaced on the outer surface of the drain cylinder 403 below the coarse filter holes 405. Through the coarse filter plate 404, the filter can filter... Larger particles in the rainwater are intercepted. A through hole is provided in the middle of the coarse filter plate 404, through which the drainage cylinder 403 passes. This facilitates the disassembly of the coarse filter plate 404. The coarse filter hole 405 has the same inner diameter as the filter hole on the coarse filter plate 404. Through the cooperation of the coarse filter plate 404, the coarse filter hole 405, the fine filter through hole one 406, and the fine filter through hole two 407, multi-stage filtration can be achieved to gradually remove impurities of different particle sizes from the rainwater, effectively improving the rainwater filtration effect and enhancing the quality of the recycled rainwater.

[0028] refer to Figure 1 , Figure 2 and Figure 4 A sludge discharge pipe 6 is fixedly installed on the bottom surface of the pre-filter tank 3. A connecting pipe 7 is fixedly installed at one end of the sludge discharge pipe 6, and one end of the connecting pipe 7 extends to the outside of the pre-filter tank 3. A manual valve is fixedly installed on the outer surface of the end of the connecting pipe 7 extending to the outside of the pre-filter tank 3. The end of the connecting pipe 7 extending to the outside of the pre-filter tank 3 is connected to an external sludge suction pump. Multiple suction holes are opened on the outer surface of the sludge discharge pipe 6, which facilitates the discharge of sludge from the inside of the pre-filter tank 3. By using the sludge discharge pipe 6, connecting pipe 7 and manual valve together, the sludge settled at the bottom of the pre-filter tank 3 can be easily discharged during the filtration process. By connecting to an external sludge suction pump, the sludge can be cleaned more efficiently, keeping the inside of the pre-filter tank 3 clean and maintaining a good filtration environment.

[0029] refer to Figure 1 , Figure 2 and Figure 4 A cleaning pipe 13 is fixedly installed on the outer surface of one end of the connecting pipe 7 extending to the outside of the pre-filter tank 3. The cleaning pipe 13 is connected to an external flushing pump. After the cleaning pipe 13 is connected to the external flushing pump, the inside of the pre-filter tank 3, including the filter mechanism 4 and other components, can be flushed when needed to remove impurities attached to it, ensure the filtration performance of each component, extend the overall service life of the device, and reduce maintenance workload.

[0030] The implementation principle of the construction site rainwater recycling device with a pre-filtration structure in this application is as follows: external rainwater first enters the interior of the pre-filtration tank 3 through the rainwater pipe 5. At this time, the rainwater entering the pre-filtration tank 3 will fall into the interior of the filter collection hood 402. In this way, the coarse filter plate 404 inside the filter collection hood 402 can perform preliminary filtration, so that larger impurities are retained on it, while smaller impurities and liquid move downward. At this time, through the fine filter through hole 406, the impurities can be further filtered, so that smaller impurities are retained and liquid is discharged. In this way, multi-stage filtration of rainwater can be achieved.

[0031] When the coarse filter plate 404 and the fine filter through-hole 406 are partially blocked, the rainwater entering the filter collection cover 402 will pass through the coarse filter through-hole 405 and the fine filter through-hole 407 into the drainage cylinder 403. This facilitates the continuous discharge of rainwater and minimizes the risk of the filter plate becoming clogged and unable to drain. After the filtered rainwater enters the pre-filter tank 3 for sedimentation, the water pump 8 can be started to discharge the sedimented rainwater into the rainwater collection tank 1, realizing the recycling and filtration of rainwater for subsequent use. This device facilitates multi-stage filtration of rainwater through the filter collection cover 402. At the same time, the filter collection cover 402 is easy to disassemble for cleaning and maintenance, improving convenience and flexibility.

[0032] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A construction site rainwater recycling device with a pre-filtration structure, comprising a rainwater collection tank (1), characterized in that: A connecting frame (2) is fixedly installed on the right side of the rainwater collection tank (1). A pre-filter tank (3) is fixedly installed on the side of the connecting frame (2) away from the rainwater collection tank (1). A filter mechanism (4) is provided inside the pre-filter tank (3). Multiple rainwater pipes (5) are fixedly installed on the side of the pre-filter tank (3). The filtration mechanism (4) includes a limiting frame plate (401), a filter collection cover (402), a drainage cylinder (403), a coarse filter plate (404), coarse filter holes (405), a fine filter through hole one (406), and a fine filter through hole two (407). The limiting frame plate (401) is fixedly installed on the inner side wall of the pre-filter tank (3). The filter collection cover (402) is provided inside the limiting frame plate (401). The bottom surface of the filter collection cover (402) is perforated. A drainage cylinder (403) is fixedly installed. A coarse filter plate (404) is provided inside the filter collection cover (402). A plurality of coarse filter holes (405) are arranged in an evenly spaced array on the outer surface of the drainage cylinder (403). A plurality of fine filter through holes (406) are arranged near the bottom side of the filter collection cover (402). A plurality of fine filter through holes (407) are arranged in an evenly spaced array on the outer surface of the drainage cylinder (403) below the coarse filter holes (405).

2. The construction site rainwater recycling device with a pre-filter structure as described in claim 1, characterized in that: A sludge discharge pipe (6) is fixedly installed on the bottom surface of the pre-filter tank (3). A connecting pipe (7) is fixedly installed at one end of the sludge discharge pipe (6). One end of the connecting pipe (7) extends to the outside of the pre-filter tank (3). A manual valve is fixedly installed on the outer surface of the end of the connecting pipe (7) extending to the outside of the pre-filter tank (3). The end of the connecting pipe (7) extending to the outside of the pre-filter tank (3) is connected to an external sludge pump.

3. The construction site rainwater recycling device with a pre-filter structure as described in claim 1, characterized in that: A water pump (8) is fixedly installed on one side of the pre-filter (3) inside the connecting frame (2). The inlet end of the water pump (8) extends into the interior of the pre-filter (3), and the outlet end of the water pump (8) extends into the interior of the rainwater collection tank (1).

4. A construction site rainwater recycling device with a pre-filtration structure as described in claim 1, characterized in that: The rainwater collection tank (1) is fixedly installed with a rectangular support frame (9) near the top inner wall, and a shield (10) is provided above the rectangular support frame (9).

5. A construction site rainwater recycling device with a pre-filter structure as described in claim 1, characterized in that: The pre-filter (3) is fixedly installed with a rectangular support frame (11) near the top inner wall, and a grate (12) is provided above the rectangular support frame (11).

6. A construction site rainwater recycling device with a pre-filter structure as described in claim 2, characterized in that: A cleaning pipe (13) is fixedly installed on the outer surface of one end of the connecting pipe (7) extending to the outside of the pre-filter tank (3), and the cleaning pipe (13) is connected to an external flushing pump.

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