Modularized rain and sewage diversion box with self-cleaning function

Abstract

The utility model discloses a modularized rain sewage diversion box with a self-cleaning function, which comprises a diversion rainwater box, a module partition plate is correspondingly arranged in the diversion rainwater box, and the interior of the diversion rainwater box is divided into a precipitation cavity and a filtering treatment cavity by the module partition plate. According to the utility model, the interior of the diversion rainwater tank is divided into the precipitation cavity and the filtering treatment cavity by the module partition plate for respectively precipitating and filtering, so that reclaimed water and clean water can be conveniently treated and used, and the two backwashing cleaning pieces can be externally connected with an external water source for respectively backwashing the precipitation cavity and the filtering treatment cavity; the water filtering part and the flow guide control part are not prone to being blocked, dirt and impurities can be circularly cleaned and filtered through the filtering and cleaning tank, water is saved while self-cleaning is convenient, the device is convenient to carry out modularized split-flow water outlet, reclaimed water outlet and clean water outlet, the application range is large, the self-cleaning backwashing effect is good, cleaning is convenient, and water is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of rainwater filtration devices, and in particular to a modular rainwater and sewage separation box with self-cleaning function. Background Technology

[0002] Modular rainwater and sewage separation boxes with self-cleaning functions are environmentally friendly devices used to separate rainwater and sewage. Their modular design allows for flexible adaptation to different installation and usage needs, effectively introducing rainwater and sewage into separate treatment or discharge systems. This avoids increasing sewage treatment costs due to rainwater and sewage mixing, and reduces problems such as excessive pipe load caused by rainwater directly entering the sewage system. During long-term use, the inside of the rainwater and sewage separation box will gradually accumulate impurities such as silt, fallen leaves, and household waste carried by rainwater, as well as suspended particles and grease from sewage. Regular cleaning of the rainwater and sewage separation box is essential to ensure its continuous and stable operation.

[0003] In existing technologies, rainwater and sewage separation boxes lack a dedicated self-cleaning design and mainly rely on manual periodic cleaning. This not only consumes a lot of manpower and time, but also has relatively insufficient self-cleaning protection capabilities, easily leading to the accumulation of a large amount of silt and dirt inside the box. The continuous accumulation of impurities can clog the filter components and pipes, affecting the normal operation of the overall equipment and making operation and protection difficult. Furthermore, the modular rainwater and sewage treatment and filtration capabilities of the separation box are insufficient, and it is not able to effectively separate sedimentation and filtration. The rainwater filtration and separation capabilities are relatively insufficient, and its practicality is not good. Therefore, we propose a modular rainwater and sewage separation box with self-cleaning function to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a modular rainwater and sewage separation box with self-cleaning function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular rainwater and sewage diversion box with self-cleaning function includes a diversion rainwater tank, and the interior of the diversion rainwater tank is provided with a corresponding modular partition plate;

[0007] The interior of the diversion rainwater tank is divided into a sedimentation chamber and a filtration chamber by a modular partition plate. The filtration chamber is equipped with a water filter. One side of the diversion rainwater tank is equipped with a flow control device that connects the sedimentation chamber and the filtration chamber. The other side of the diversion rainwater tank is equipped with two backwash cleaning devices that are respectively connected to the sedimentation chamber and the filtration chamber.

[0008] The sedimentation chamber is provided with a filter cleaning tank on its side.

[0009] Preferably, the front of the diversion rainwater tank is provided with two drain pipes, which are connected to the bottom of the front of the sedimentation chamber and the filtration chamber. Both drain pipes are provided with control water valves, and the top of the diversion rainwater tank is provided with a water inlet.

[0010] Preferably, the water filter element is a water quality filter plate, which is filled and fixed in the middle of the filtration chamber. The water filter element divides the filtration chamber into an upper water inlet chamber and a lower clean water chamber. The bottom of the flow control element is connected to the upper water inlet chamber, and the bottom backwash cleaning element is connected to the lower clean water chamber.

[0011] Preferably, the flow control component includes a connecting flow pipe, a control pump body, and a control valve. The two ends of the connecting flow pipe are respectively connected to the sedimentation chamber and the filtration treatment chamber. The output ends of the control valve and the control pump body are both installed on the connecting flow pipe.

[0012] Preferably, the backwash cleaning component includes an external guide pipe, a high-pressure guide pump, and an anti-backflow valve. The two external guide pipes are fixedly connected to the sides of the sedimentation chamber and the filtration chamber, respectively. The output ends of the anti-backflow valve and the high-pressure guide pump are respectively installed on the external guide pipes. The bottom backwash cleaning component is respectively installed below the side of the water filter component.

[0013] Preferably, the filtration and cleaning tank includes a sewage filtration tank, a flow circulation pipe, a sewage filter element, and a control switch valve. The two flow circulation pipes are connected to the upper and lower sides of the sewage filtration tank respectively, and the other side of each of the two flow circulation pipes is connected to the sedimentation chamber. The sewage filter element is installed and fixed inside the sewage filtration tank. The control switch valve is installed and fixed at one end of the two flow circulation pipes near the sewage filtration tank. A liquid pump body is provided on the flow circulation pipe.

[0014] Preferably, a pressure detector is provided on the connecting guide pipe, and the pressure detector is electrically connected to the control valve, the backwash cleaning component, and the filter cleaning tank respectively.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. This modular rainwater and sewage diversion box with self-cleaning function is divided into a sedimentation chamber and a filtration chamber by a modular partition plate inside the rainwater diversion box. The sedimentation chamber settles rainwater dirt, while the relatively clean water source is conducted to the filtration chamber by the flow control component. After being filtered by the water filter component, the rainwater and sewage filtration operation is completed. Water filtration is convenient. The sedimentation chamber and the filtration chamber are used for greywater sedimentation and clean water filtration respectively. It can be used for greywater sedimentation filtration, and the filtration chamber can be used for clean water filtration. It is convenient to use and has a good range of applicable water output. The device is easy to modularly divert water output, and the output of greywater and clean water is convenient and has a wide range of applications.

[0017] 2. This modular rainwater and sewage diversion box with self-cleaning function has two backwash cleaning components on the rainwater diversion tank, which are respectively connected to the sedimentation chamber and the filtration chamber. The two backwash cleaning components can be connected to an external water source to perform backwashing operations on the sedimentation chamber and the filtration chamber, respectively. This reverses the cleaning and flushing of the water filter components to prevent blockages, resulting in good anti-clogging and cleaning effects. A filter cleaning tank is correspondingly located on the side of the sedimentation chamber. The water that has settled in the sedimentation chamber can be circulated and filtered by the filter cleaning tank. After the dirt and impurities are guided into the filter cleaning tank, the relatively clean water is guided back into the sedimentation chamber to complete the flushing and protection. While achieving the backwashing cleaning function, it also reduces water waste. It has good self-cleaning and water-saving effects and is convenient to use. Attached Figure Description

[0018] Figure 1 This utility model presents a frontal perspective three-dimensional schematic diagram of a modular rainwater and sewage diversion box with self-cleaning function;

[0019] Figure 2 A top-view perspective view of a modular rainwater and sewage diversion box with self-cleaning function is provided for this utility model.

[0020] Figure 3 This utility model presents a front view sectional perspective of a modular rainwater and sewage diversion box with self-cleaning function.

[0021] Figure 4 This invention presents a top-view cross-sectional perspective of a modular rainwater and sewage diversion box with self-cleaning function.

[0022] In the diagram: 1. Diversion rainwater tank; 11. Drainage pipe; 12. Control water valve; 13. Inlet hopper; 2. Module partition plate; 3. Sedimentation chamber; 4. Filtration treatment chamber; 41. Upper inlet chamber; 42. Lower clean water chamber; 5. Water filter element; 6. Flow control element; 61. Connecting flow pipe; 62. Control pump body; 63. Control valve; 64. Pressure detector; 7. Backwash cleaning element; 71. External flow pipe; 72. High-pressure flow pump; 73. Anti-backflow valve; 8. Filter cleaning tank; 81. Sewage filter tank; 82. Flow circulation pipe; 83. Sewage filter element; 84. Control switch valve; 85. Liquid pump body. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figures 1-4 A modular rainwater and sewage diversion box with self-cleaning function includes a diversion rainwater tank 1, and a corresponding modular partition plate 2 is provided inside the diversion rainwater tank 1.

[0026] The interior of the diversion rainwater tank 1 is divided into a sedimentation chamber 3 and a filtration chamber 4 by a modular partition plate 2. The filtration chamber 4 is equipped with a water filter element 5. One side of the diversion rainwater tank 1 is equipped with a flow control element 6 that connects the sedimentation chamber 3 and the filtration chamber 4. The other side of the diversion rainwater tank 1 is equipped with two backwash cleaning elements 7 that are respectively connected to the sedimentation chamber 3 and the filtration chamber 4.

[0027] The sedimentation chamber 3 is provided with a filter cleaning tank 8 on its side.

[0028] The beneficial effects of this solution are as follows: The interior of the diversion rainwater tank 1 is divided into a sedimentation chamber 3 and a filtration chamber 4 by a modular partition plate 2. The sedimentation chamber 3 deposits rainwater dirt, and the relatively clean water source is conducted to the filtration chamber 4 by the flow control component 6. After the water is filtered by the water filter component 5, the rainwater and sewage filtration operation is completed. The water filtration is convenient. In addition, the sedimentation chamber 3 and the filtration chamber 4 are used for greywater sedimentation and clean water filtration, respectively. It can be used for greywater sedimentation filtration, and the filtration chamber 4 can be used for clean water filtration. It is convenient to use and has a good range of applicable water output.

[0029] The two backwash cleaning components 7 can be connected to an external water source to perform backwashing operations on the sedimentation chamber 3 and the filtration treatment chamber 4 respectively. They also perform reverse cleaning and flushing of the blockage in the water filter component 5. The water source after sedimentation in the sedimentation chamber 3 can be circulated and filtered by the filtration cleaning tank 8. After the dirt and impurities are guided into the filtration cleaning tank 8, the relatively clean water source is guided back into the sedimentation chamber 3 to complete the flushing and protection. This makes the device easy to modularly distribute water, and it is convenient to output both reclaimed water and clean water. It has a wide range of applications, good self-cleaning backwashing effect, is easy to clean, and is relatively water-saving.

[0030] Furthermore, the front of the diversion rainwater tank 1 is provided with two drain pipes 11, which are connected to the bottom of the front of the sedimentation chamber 3 and the filtration chamber 4 respectively. Both drain pipes 11 are provided with control water valves 12, and the top of the diversion rainwater tank 1 is provided with a water inlet hopper 13.

[0031] Specifically, the front of the diversion rainwater tank 1 is provided with two drain pipes 11, which can be used to discharge water from the sedimentation chamber 3 and the filtration treatment chamber 4 respectively, facilitating the discharge of greywater and clean water. The drain pipe 11 is provided with a control valve 12, which facilitates the opening and closing control of the drain pipe 11. The water inlet 13 facilitates water intake, and the water intake and closing switch are convenient and easy to use.

[0032] Furthermore, the water filter element 5 is a water quality filter plate. The water filter element 5 is filled and fixed in the middle of the filtration treatment chamber 4. The water filter element 5 divides the filtration treatment chamber 4 into an upper water inlet chamber 41 and a lower clean water chamber 42. The bottom of the flow control element 6 is connected to the upper water inlet chamber 41, and the bottom backwash cleaning element 7 is connected to the lower clean water chamber 42.

[0033] Specifically, the water filter element 5 is a water quality filter plate that plays a filtering role, facilitating the clean filtration of rainwater. The filtration is convenient to use. The water filter element 5 is filled and fixed in the middle of the filtration treatment chamber 4, which can divide the filtration treatment chamber 4 into an upper water inlet chamber 41 and a lower clean water chamber 42. The flow control element 6 can guide the water source after sedimentation in the sedimentation chamber 3 to the upper water inlet chamber 41. The water pressure is increased by the upper water inlet chamber 41, and after pressurization filtration with the water filter element 5, the water is filtered into the lower clean water chamber 42 for rapid and high-cleanliness filtration. The filtration quality is excellent and the filtration effect is good.

[0034] Furthermore, the flow control component 6 includes a connecting flow pipe 61, a control pump body 62, and a control valve 63. The two ends of the connecting flow pipe 61 are respectively connected to the sedimentation chamber 3 and the filtration treatment chamber 4. The output ends of the control valve 63 and the control pump body 62 are both installed on the connecting flow pipe 61.

[0035] Specifically, the connecting guide pipe 61, in conjunction with the control pump body 62, can pressurize and guide the water source in the sedimentation chamber 3 to the filtration chamber 4. After entering the upper water inlet chamber 41, the water source is pressurized and then undergoes a high-pressure rapid process by the water filter element 5. Finally, the water source is discharged through the lower clean water chamber 42. The water source filtration and cleaning is convenient, and the rainwater and sewage cleaning and treatment effect is good.

[0036] Furthermore, the backwash cleaning component 7 includes an external guide pipe 71, a high-pressure guide pump 72, and an anti-backflow valve 73. The two external guide pipes 71 are fixedly connected to the sides of the sedimentation chamber 3 and the filtration chamber 4, respectively. The output ends of the anti-backflow valve 73 and the high-pressure guide pump 72 are respectively installed on the external guide pipes 71. The bottom backwash cleaning component 7 is respectively installed below the side of the water filter component 5.

[0037] Specifically, the external guide pipe 71 can introduce external water into the sedimentation chamber 3 and the filtration chamber 4 respectively for rinsing. The high-pressure guide pump 72 plays a role in pressurizing and rinsing, making cleaning convenient and stable. The anti-backflow valve 73 plays a role in switching control, preventing water backflow and leakage, and ensuring stable operation. The bottom backwash cleaning component 7 is pressurized and rinsed from the lower clean water chamber 42 into the upper water inlet chamber 41, and then rinsed into the sedimentation chamber 3 from the upper water inlet chamber 41 to complete the cleaning and rinsing. During the cleaning process, the guide control component 6 and the backwash cleaning component 7 play a role in preventing blockage and cleaning, resulting in good cleaning effect.

[0038] Furthermore, the filtration and cleaning tank 8 includes a sewage filtration tank 81, a flow circulation pipe 82, a sewage filter element 83, and a control switch valve 84. The two flow circulation pipes 82 are connected to the upper and lower sides of the sewage filtration tank 81 respectively, and the other side of the two flow circulation pipes 82 are connected to the sedimentation chamber 3 respectively. The sewage filter element 83 is installed and fixed inside the sewage filtration tank 81. The control switch valve 84 is installed and fixed at one end of the two flow circulation pipes 82 near the sewage filtration tank 81. A liquid pump body 85 is provided on the flow circulation pipe 82.

[0039] Specifically, the wastewater filter tank 81 is equipped with a wastewater filter element 83. The wastewater flushed out of the sedimentation chamber 3 by the backwash cleaning component 7 can be circulated back into the wastewater filter tank 81 through two guide circulation pipes 82. After being filtered and cleaned by the wastewater filter element 83, it is circulated back into the sedimentation chamber 3 to complete the wastewater decontamination treatment. At the same time, due to the circulating filtration, water is saved. The control valve 84 controls the opening and closing of the guide circulation pipes 82 to prevent backflow of water and make it difficult for wastewater to back up. The pump body 85 also plays a role in pumping water, which facilitates the rapid treatment of the overall wastewater in the filter cleaning tank 8. It is convenient to use and has a good self-cleaning effect.

[0040] Furthermore, a pressure detector 64 is provided on the connecting guide pipe 61, and the pressure detector 64 is electrically connected to the control valve 63, the backwash cleaning component 7, and the filter cleaning tank 8 respectively.

[0041] Specifically, a pressure detector 64 is installed in the connecting guide pipe 61. When the water filter element 5 is blocked, the pressure change can be directly detected by the pressure detector 64, which facilitates the operation of the backwash cleaning element 7 and the filter cleaning tank 8 for self-cleaning backwashing. The self-cleaning backwashing is convenient and easy to use, requiring no manual intervention.

[0042] How to use and how to work this device:

[0043] The interior of the diversion rainwater tank 1 is divided into a sedimentation chamber 3 and a filtration chamber 4 by a modular partition plate 2. When rainwater enters the diversion rainwater tank 1, the rainwater dirt is first deposited in the sedimentation chamber 3. The relatively clean water source is then guided by the flow control component 6 to the filtration chamber 4, where it is filtered by the water filter component 5 to remove dirt and complete the rainwater filtration operation. The water filtration is convenient, and the sedimentation chamber 3 and the filtration chamber 4 are used for greywater sedimentation and clean water filtration respectively, which facilitates modular diversion of water. The sedimentation chamber 3 can be used for greywater sedimentation and filtration, and the filtration chamber 4 can be used for clean water filtration. It is convenient to use and has a good range of applicable water output.

[0044] The front of the diversion rainwater tank 1 is provided with two drain pipes 11, which can be used to discharge water from the sedimentation chamber 3 and the filtration treatment chamber 4 respectively, facilitating the discharge of greywater and clean water. The drain pipe 11 is provided with a control valve 12, which facilitates the opening and closing control of the drain pipe 11. The water inlet 13 facilitates water intake. The water intake and closing switch are convenient and easy to use.

[0045] The water filter element 5 is a water quality filter plate that plays a filtering role, making it convenient to filter rainwater cleanly. The water filter element 5 is filled and fixed in the middle of the filtration chamber 4, which can divide the filtration chamber 4 into an upper water inlet chamber 41 and a lower clean water chamber 42. The flow control element 6 can guide the water source after sedimentation in the sedimentation chamber 3 to the upper water inlet chamber 41. The water pressure is increased by the upper water inlet chamber 41, and after pressurization and filtration with the water filter element 5, the water is filtered into the lower clean water chamber 42 for rapid and high-cleanliness filtration. The filtration quality is excellent and the filtration effect is good.

[0046] The flow control component 6 includes a connecting flow pipe 61, a control pump body 62, and a control valve 63. The connecting flow pipe 61, in conjunction with the control pump body 62, can pressurize and guide the water source in the sedimentation chamber 3 to the filtration chamber 4. After entering the upper water inlet chamber 41, the water source is pressurized and then undergoes a high-pressure rapid process by the water filter element 5. Finally, the water source is discharged through the lower clean water chamber 42. The water source filtration and cleaning is convenient, and the rainwater and sewage cleaning effect is good. A pressure detector 64 is correspondingly installed in the connecting flow pipe 61. When the water filter element 5 is blocked, the pressure change can be visually detected by the pressure detector 64, which facilitates the operation of the backwash cleaning component 7 and the filter cleaning tank 8 for self-cleaning backwashing. The self-cleaning backwashing is convenient and easy to use, requiring no manual intervention.

[0047] The diversion rainwater tank 1 is equipped with two backwash cleaning components 7, which are respectively connected to the sedimentation chamber 3 and the filtration chamber 4. The two backwash cleaning components 7 can be connected to an external water source. The dirt in the sedimentation chamber 3 can be directly flushed by the backwash cleaning component 7 at the top, and the filtration chamber 4 can be backwashed by the backwash cleaning component 7 at the bottom. The water source is from bottom to top, which facilitates the reverse cleaning and flushing of the blockage of the water filter 5 during the backwashing process, resulting in a good anti-clogging cleaning effect. The side of the sedimentation chamber 3 is equipped with a filter cleaning tank 8. The water source after sedimentation in the sedimentation chamber 3 can be circulated and filtered by the filter cleaning tank 8. After the dirt and impurities are guided into the filter cleaning tank 8, the relatively clean water source is guided back into the sedimentation chamber 3 to complete the flushing and protection. While playing the role of backwashing and cleaning, it reduces the waste of water source, has good self-cleaning and water-saving effects, and is convenient to use.

[0048] The backwash cleaning component 7 includes an external guide pipe 71, a high-pressure guide pump 72, and an anti-backflow valve 73. The external guide pipe 71 can introduce external water into the sedimentation chamber 3 and the filtration chamber 4 respectively for rinsing. The high-pressure guide pump 72 plays a role in pressurizing and rinsing, making cleaning convenient and stable. The anti-backflow valve 73 plays a role in on / off control, preventing water backflow and leakage, and ensuring stable operation. The backwash cleaning component 7 at the bottom is pressurized and rinsed from the lower clean water chamber 42 into the upper water inlet chamber 41, and then rinsed into the sedimentation chamber 3 from the upper water inlet chamber 41 to complete the cleaning and rinsing. During the cleaning process, the guide control component 6 and the backwash cleaning component 7 are protected from clogging and the cleaning effect is good.

[0049] The filtration and cleaning tank 8 includes a sewage filtration tank 81, a flow circulation pipe 82, a sewage filter element 83, and a control valve 84. The sewage filtration tank 81 is equipped with a sewage filter element 83. The sewage flushed out of the sedimentation chamber 3 by the backwash cleaning component 7 can be circulated back into the sewage filtration tank 81 through the two flow circulation pipes 82. After being filtered and cleaned by the sewage filter element 83, it is circulated back into the sedimentation chamber 3 to complete the sewage decontamination treatment. At the same time, due to the circulation filtration, water is saved. The control valve 84 controls the flow circulation pipe 82 to prevent backflow of water and sewage backflow. The pump body 85 pumps water, which facilitates the rapid treatment of sewage in the filtration and cleaning tank 8. It is convenient to use and has a good self-cleaning effect.

[0050] The device facilitates modular water diversion, making it convenient to dispense both greywater and clean water. It has a wide range of applications, good self-cleaning backwashing effect, easy cleaning, and is relatively water-saving.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A modular rainwater and sewage diversion box with self-cleaning function, comprising a rainwater diversion tank (1), characterized in that: The interior of the diversion rainwater tank (1) is provided with a corresponding module partition plate (2); The interior of the diversion rainwater tank (1) is divided into a sedimentation chamber (3) and a filtration chamber (4) by a modular partition plate (2). The filtration chamber (4) is equipped with a water filter element (5). One side of the diversion rainwater tank (1) is equipped with a flow control element (6) that connects the sedimentation chamber (3) and the filtration chamber (4). The other side of the diversion rainwater tank (1) is equipped with two backwash cleaning elements (7) that are respectively connected to the sedimentation chamber (3) and the filtration chamber (4). The sedimentation chamber (3) is provided with a filter cleaning tank (8) on its side.

2. A modular rainwater and sewage separation box with self-cleaning function according to claim 1, characterized in that: The front of the diversion rainwater tank (1) is provided with two drain pipes (11), which are connected to the bottom of the front of the sedimentation chamber (3) and the filtration chamber (4). Both drain pipes (11) are provided with control water valves (12), and the top of the diversion rainwater tank (1) is provided with a water inlet hopper (13).

3. A modular rainwater and sewage separation box with self-cleaning function according to claim 1, characterized in that: The water filter element (5) is a water quality filter plate. The water filter element (5) is filled and fixed in the middle of the filtration treatment chamber (4). The water filter element (5) divides the filtration treatment chamber (4) into an upper water inlet chamber (41) and a lower clean water chamber (42). The bottom of the flow control element (6) is connected to the upper water inlet chamber (41), and the bottom backwash cleaning element (7) is connected to the lower clean water chamber (42).

4. A modular rainwater and sewage separation box with self-cleaning function according to claim 1, characterized in that: The flow control component (6) includes a connecting flow pipe (61), a control pump body (62) and a control valve (63). The two ends of the connecting flow pipe (61) are connected to the sedimentation chamber (3) and the filtration treatment chamber (4) respectively. The output ends of the control valve (63) and the control pump body (62) are both installed on the connecting flow pipe (61).

5. A modular rainwater and sewage separation box with self-cleaning function according to claim 1, characterized in that: The backwash cleaning component (7) includes an external guide pipe (71), a high-pressure guide pump (72), and an anti-backflow valve (73). The two external guide pipes (71) are fixedly connected to the sides of the sedimentation chamber (3) and the filtration chamber (4). The output ends of the anti-backflow valve (73) and the high-pressure guide pump (72) are respectively installed on the external guide pipes (71). The backwash cleaning component (7) at the bottom is installed below the side of the water filter component (5).

6. A modular rainwater and sewage separation box with self-cleaning function according to claim 1, characterized in that: The filter cleaning tank (8) includes a sewage filter tank (81), a flow circulation pipe (82), a sewage filter element (83), and a control switch valve (84). The two flow circulation pipes (82) are connected to the upper and lower sides of the sewage filter tank (81), and the other side of the two flow circulation pipes (82) is connected to the sedimentation chamber (3). The sewage filter element (83) is installed and fixed inside the sewage filter tank (81). The control switch valve (84) is installed and fixed at one end of the two flow circulation pipes (82) near the sewage filter tank (81). A liquid pump body (85) is provided on the flow circulation pipe (82).

7. A modular rainwater and sewage separation box with self-cleaning function according to claim 4, characterized in that: The connecting guide pipe (61) is equipped with a pressure detector (64), which is electrically connected to the control valve (63), the backwash cleaning component (7), and the filter cleaning tank (8).

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