A sewage treatment device facilitating cleaning of a filter screen plate

Abstract

The application discloses a sewage treatment device convenient for cleaning filter screen plates, and relates to the field of sewage treatment. The sewage treatment device comprises a filter box, a filter screen plate body rotatably arranged in the middle of the filter box, a cleaning mechanism rotatably arranged on one side of the inner wall of the filter box and used for cleaning and brushing the filter screen plate body, a motor arranged at the top end of the cleaning mechanism and used for providing driving force for the cleaning mechanism, and a water pump fixed on one side of the top end of the filter box and used for supplying water for the cleaning mechanism. The filter screen plate body is turned over to an angle consistent with the cleaning shell by rotating an adjusting rod, so that the bottom end of a cleaning brush is in parallel contact with the surface of the filter screen plate body. The motor drives a rotating shaft II to rotate, drives a half gear to rotate and pushes a toothed plate to reciprocatingly slide, so that the cleaning brush reciprocatingly brushes the surface of the filter screen plate body, and efficient stain removal is realized. The water pump, a water pipe and a conveying pipe are connected, so that high-pressure flushing is simultaneously completed during the brushing process, and the stain stripping effect is further improved.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment, and in particular to a wastewater treatment device that facilitates cleaning of filter screens. Background Technology

[0002] Wastewater treatment equipment is a specialized system for treating various types of wastewater. It effectively removes pollutants such as suspended solids and organic matter from wastewater through a variety of treatment processes, including physical, chemical, and biological methods, so that the treated water meets national discharge standards or specific reuse requirements, thereby achieving the protection and recycling of water resources.

[0003] For example, patent application number 202222017194.9 discloses a sewage treatment device that facilitates cleaning of the filter screen, but it still has the following shortcomings in practical use: The above-mentioned device consists of a wastewater tank, an inlet pipe, an outlet pipe, a filter screen, and a slide block. By pressing, the filter screen is tilted, allowing impurities to slide off and be cleaned. However, during use, it is inconvenient to clean stubborn stains on the surface of the filter screen, and it relies on manual brushing, which is not only inefficient and has a poor stain removal effect, but also easily leaves impurities. Utility Model Content

[0004] To address the problems of inconvenient cleaning and poor cleaning efficiency of stubborn stains on the filter screen surface, this application provides a wastewater treatment device that facilitates cleaning of the filter screen.

[0005] The wastewater treatment device for easy cleaning of filter screens provided in this application adopts the following technical solution: A wastewater treatment device for easy cleaning of a filter screen includes a filter box and a filter screen body rotatably disposed in the middle of the filter box. A cleaning mechanism for cleaning and brushing the filter screen body is rotatably disposed on one side of the inner wall of the filter box. A motor for providing driving force to the cleaning mechanism is disposed at the top of the cleaning mechanism. A water pump for supplying water to the cleaning mechanism is fixedly disposed on one side of the top of the filter box. The cleaning mechanism includes a cleaning housing and a cleaning brush that is reciprocally slidably disposed at the bottom of the cleaning housing.

[0006] By adopting the above technical solution, the filter screen body is used to intercept impurities in sewage. The cleaning mechanism uses a cleaning brush that slides back and forth at the bottom, driven by a motor, to brush the filter screen body, effectively removing dirt attached to the screen and preventing clogging. The water pump supplies water to the cleaning mechanism, so that the cleaning brush sprays water simultaneously during the brushing process, enhancing the cleaning ability. The coordinated action of all parts not only ensures the filtration effect of sewage treatment, but also greatly simplifies the cleaning process of the filter screen, improving the overall efficiency and ease of maintenance of the equipment.

[0007] Preferably, the filter box is divided into a cleaning area and a filtration area. The side wall of the cleaning area of ​​the filter box is provided with a storage groove to accommodate the cleaning mechanism, and the top of the filtration area of ​​the filter box is fixed with a water inlet box that is connected to the sewage source.

[0008] By adopting the above technical solution, the filter box is designed with a cleaning zone and a filtration zone. Wastewater is introduced through the water inlet box at the top of the filtration zone for efficient filtration, and the storage tank on the side wall of the cleaning zone stores the cleaning mechanism when the filter screen is cleaned. This achieves functional zoning of filtration and cleaning, improving the stability of equipment operation and the convenience of maintenance.

[0009] Preferably, a slider is slidably disposed at the lower middle of the cleaning housing and fixed to the middle of the top of the cleaning brush. A toothed plate is fixed at the top of the slider. Half gears mesh on both sides of the toothed plate. A rotating shaft is fixedly disposed through the middle of the half gear. A spur gear is fixedly sleeved at the upper end of the rotating shaft outside the half gear. A spur gear is meshed between the two spur gears.

[0010] By adopting the above technical solution, the cleaning shell is connected to the cleaning brush through the slider at the lower middle. By using the meshing transmission of the toothed plate and the half gear, and in conjunction with the linkage structure of spur gear one and spur gear two, the rotational power of the motor is converted into the reciprocating linear motion of the cleaning brush, thereby achieving efficient brushing of the filter screen.

[0011] Preferably, the two ends of the first rotating shaft are rotatably connected to the inner top surface and the inner bottom surface of the cleaning housing, respectively, and the second rotating shaft is fixedly provided through the middle of the second spur gear, which passes through the middle of the top of the cleaning housing. The top of the second rotating shaft is fixed to the output end of the motor.

[0012] By adopting the above technical solution, the second spur gear transmits power from the inside of the cleaning mechanism to the top of the housing via the second rotating shaft, and is linked with the output end of the motor to ensure the smooth operation of the gear transmission system, and realizes the movement of the cleaning brush through mechanical connection.

[0013] Preferably, a fixing block two with an embedded three-way pipe is fixedly provided on one side of the cleaning mechanism. The three openings of the fixing block two are respectively fixedly connected to a conveying pipe and a water pipe fixedly connected to the water pump outlet. Water inlet holes are opened on both sides of the top of the cleaning brush and are fixedly connected to the end of the conveying pipe away from the water pump. Several water outlet holes are opened on both sides of the upper end of the cleaning brush.

[0014] By adopting the above technical solution, the cleaning mechanism achieves water flow diversion through the embedded three-way pipe in the fixed block two. The water pump output is accurately delivered to the water inlet at the top of the cleaning brush through the water pipe and the delivery pipe. Then, a uniform jet flow is formed through multiple water outlets on both sides of the upper end of the cleaning brush, so that the brushing process is completed simultaneously, improving the cleaning efficiency and dirt removal effect of the filter screen.

[0015] Preferably, an adjusting rod 2 is rotatably provided at the lower end of the cleaning area of ​​the filter box, and a connecting sleeve rod is fixedly sleeved on one end of the adjusting rod 2, and the connecting sleeve rod is fixed to the side of the cleaning shell away from the adjusting rod 2.

[0016] By adopting the above technical solution, the second adjusting rod is fixedly connected to the cleaning housing through the connecting sleeve rod, forming a rotatable linkage structure, which allows the operator to control the rotation of the cleaning housing in the storage tank by rotating the second adjusting rod, thereby improving the convenience of equipment maintenance.

[0017] Preferably, an adjusting rod is rotatably provided through the lower middle part of the filter box, and a fixing block is fixedly sleeved in the middle of the adjusting rod. The end of the fixing block away from the adjusting rod is fixed to one side of the filter screen body. A limiting block is provided on the side of the filter screen body away from the fixing block, and a limiting groove adapted to the limiting block is provided on the side wall of the filter area.

[0018] By adopting the above technical solution, the adjusting rod is connected to the filter screen body through the fixing block to form a rotatable linkage structure, which allows the operator to rotate the adjusting rod to control the filter screen body to flip and switch between the filtration zone and the cleaning zone; in conjunction with the fitting design of the limiting block and the limiting groove, the positional stability of the filter screen body is ensured under filtration conditions, and it is accurately positioned in the cleaning zone during cleaning work, realizing the rapid switching between filtration and maintenance functions.

[0019] Preferably, a limiting pin is symmetrically and movably inserted into the inner top surface of the storage slot, and a spring is sleeved on the upper end of the limiting pin outside the limiting hole. The two ends of the spring are respectively fixed to the upper end of the limiting pin and the top of the filter box.

[0020] By adopting the above technical solution, the limiting pin is elastically supported by a spring and automatically abuts against the cleaning housing when the cleaning mechanism is stored, preventing the cleaning mechanism from accidentally coming off during equipment operation or transportation; when the cleaning mechanism needs to be operated, the limiting pin can be pulled upward to compress the spring to release the lock, which improves the safety of equipment operation and the convenience of maintenance.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By rotating the first adjusting rod, the first fixing block and the filter screen body are rotated to the cleaning area, so that the limiting slope restricts its rotation angle to be consistent with the cleaning shell, thereby making the bottom end of the cleaning brush parallel to the surface of the filter screen body, thereby driving the bristles to evenly adhere to the screen, reducing cleaning dead corners, and making it easier to clean stubborn stains on the surface of the filter screen.

[0022] 1. The rotating shaft is driven by a motor to rotate, which in turn drives the second spur gear to mesh with the first spur gears on both sides. This causes the half gears to rotate and push the toothed plate to slide back and forth, thereby driving the cleaning brush to brush along the surface of the filter screen plate, achieving efficient cleaning. Water is supplied by a water pump and delivered through a water pipe to the three-way pipe of the fixed block 2. The water then enters the water inlet of the cleaning brush through the delivery pipe and is sprayed out from the water outlet. This allows the brushing process to be completed simultaneously with high-pressure rinsing, thereby enhancing the stain removal effect and solving the problems of low efficiency and stain residue in traditional manual brushing. Attached Figure Description

[0023] Figure 1 This is a frontal axonometric view of the present application; Figure 2 This is a top-view axonometric schematic diagram of this application; Figure 3 This is a schematic diagram of the internal structure of the filter box in this application; Figure 4 This is a partial sectional view of the filter box in this application; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the filter screen body structure of this application; Figure 7 This is a schematic diagram of the cleaning mechanism structure in this application; Figure 8 This is a schematic diagram of the internal structure of the cleaning facility in this application; Figure 9 This is a top view of the internal structure of the cleaning facility described in this application; Figure 10 This is a schematic diagram of the adjustment hole and the rectangular hole structure of this application; Figure 11 This is a schematic diagram of the storage slot structure in this application.

[0024] Attached reference numerals: 1. Filter box; 2. Cleaning mechanism; 3. Filter screen body; 4. Motor; 5. Water pump; 6. Fixing block one; 7. Adjusting rod one; 8. Limiting block; 9. Adjusting rod two; 10. Limiting pin; 11. Spring; 12. Water baffle; 13. Water inlet box; 14. Cover plate; 15. Slide groove; 16. Limiting groove; 17. Rectangular groove; 18. Storage groove; 19. Adjustment hole one; 20. Adjustment hole two; 21. Limiting hole; 22. Water pipe; 23. Delivery pipe; 24. Fixing block two; 25. Rectangular hole; 26. Limiting slope; 201. Cleaning housing; 202. Cleaning brush; 203. Toothed plate; 204. Half gear; 205. Spur gear one; 206. Spur gear two; 207. Rotating shaft one; 208. Rotating shaft two; 209. V-groove; 210. Water outlet; 211. Water inlet; 212. Connecting sleeve; 213. Sliding block; 214. Circular hole. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Figure 11 This application will be described in further detail.

[0026] This application discloses a wastewater treatment device that facilitates cleaning of the filter screen.

[0027] Reference Figure 1 - Figure 7 , Figure 10 , Figure 11 A wastewater treatment device for easy cleaning of a filter screen includes a filter box 1 and a filter screen body 3 rotatably disposed in the middle of the filter box 1. The filter screen body 3 is used to filter wastewater on one side inside the filter box 1. A cleaning mechanism 2 is rotatably disposed on one side of the inner wall of the filter box 1. The cleaning mechanism 2 is used to clean and scrub the filter screen body 3. A motor 4 is disposed at the top of the cleaning mechanism 2, and the motor 4 provides driving force for the cleaning mechanism 2. A water pump 5 for supplying water to the cleaning mechanism 2 is fixedly disposed on one side of the top of the filter box 1. The bottom end of the water pump 5 is fixed to the top of the filter box 1. The inlet of the water pump 5 is connected to a water source. A water pipe 22 is fixedly disposed through the outlet of the water pump 5. A fixing block 24 is fixedly disposed on one side of the cleaning mechanism 2. A three-way pipe is embedded in the fixing block 24. The three-way pipe consists of two symmetrical openings and one side opening. One side opening of the three-way pipe is fixedly disposed through the end of the water pipe 22 away from the water pump 5. A conveying pipe 23 is fixedly disposed through the other two symmetrical openings of the fixing block 24.

[0028] Before using the device, the filter box 1 needs to be fixed in the sewage treatment area, the inlet box 13 needs to be connected to the sewage source, and the water pump 5 needs to be connected to the clean water source. The axis of the knob 2 of the adjusting rod 1 7 and the knob 1 of the adjusting rod 2 9 needs to be horizontally aligned with the filter screen body 3 and the cleaning mechanism 2, so that the limiting block 8 can be inserted into the limiting groove 16 to complete the sealing of the filtration area. The device is suitable for industrial wastewater, domestic sewage and other scenarios that require high-efficiency filtration and regular automatic cleaning of the filter screen body 3.

[0029] The interior of the filter box 1 is divided into a cleaning zone and a filtration zone. The cleaning mechanism 2 is installed on the side wall of the cleaning zone of the filter box 1. Drainage outlets are provided in the middle of the inner bottom surface of both the cleaning zone and the filtration zone. A storage groove 18 is provided on the side wall of the cleaning zone of the filter box 1. The storage groove 18 is used to store the cleaning mechanism 2 when it is not in use, making it easy to clean later. A rectangular hole 25 is provided in the middle of the inner wall of the storage groove 18. The inner bottom surface of the rectangular hole 25 is inclined. A limiting hole 21 is symmetrically provided on the inner top surface of the storage groove 18. A limiting pin 10 is movably inserted into the limiting hole 21. The lower end of the limiting pin 10 is wedge-shaped. A spring 11 is sleeved on the upper end of the limiting pin 10 outside the limiting hole 21 (the formula for calculating the elastic force of the spring 11 is F=kx, where F represents the elastic force of the spring 11, k represents the constant of the spring 11, and x represents the compression of the spring 11). The two ends of the spring 11 are fixed to the upper end of the limiting pin 10 and the top of the filter box 1, respectively.

[0030] The filter box 1 has an adjustment hole 19 at the lower end of the cleaning area. The adjustment hole 19 is located directly below the storage slot 18. An adjustment rod 9 is rotatably inserted inside the adjustment hole 19. A knob 1 is located at the end of the adjustment rod 29 outside the adjustment hole 19. The shape of the knob 1 is as follows (e.g., Figure 7 As shown), a chute 15 is provided in the middle of the filter box 1. The chute 15 is located between the cleaning zone and the filtration zone. A baffle 12 is movably inserted inside the chute 15. The contact surfaces of the baffle 12 and the chute 15 are provided with rubber sealing rings to prevent water leakage. A rectangular groove 17 is provided in the middle of the inner bottom surface of the chute 15. An adjustment hole 20 is provided in the middle of the filter box 1 below the rectangular groove 17. An adjustment rod 7 is rotatably inserted inside the adjustment hole 20. A knob 2 is provided at one end of the adjustment rod 7 located outside the adjustment hole 20. The shape of the knob 2 is as follows (e.g., Figure 6 (As shown).

[0031] A fixing block 6 is fixedly sleeved in the middle of the adjusting rod 7. A filter screen body 3 is fixedly mounted on the end of the fixing block 6 away from the adjusting rod 7. The filter screen body 3 is used to filter sewage. A limiting block 8 is fixedly mounted in the middle of the side of the filter screen body 3 away from the fixing block 6. The axis of the knob is kept at the same level as the axis of the filter screen body 3, so that the rotation angle of the adjusting rod 7 is consistent with the rotation angle of the filter screen body 3, which is convenient for the operator to observe. A limiting slope 26 is fixedly mounted at the lower end of the clean area inside the filter box 1 away from the collection tank 18. The top of the limiting slope 26 is inclined, which makes it easy to limit the flipping angle of the filter screen body 3 when it is flipped into the clean area.

[0032] A limiting groove 16 is provided on the side of the filter area of ​​the filter box 1 opposite to the storage tank 18. The shape of the limiting groove 16 is adapted to the shape of the limiting block 8. When the adjusting rod 7 drives the filter screen body 3 to flip into the filter area, the limiting block 8 is inserted into the limiting groove 16 to fix the filter screen body 3. The contact surface between the limiting block 8 and the limiting groove 16 is provided with a silicone sealing gasket to prevent water leakage. A cover plate 14 is fixed at the top of the filter area of ​​the filter box 1. A water inlet box 13 is fixed at the middle of the top of the cover plate 14. The interior of the water inlet box 13 is connected to the middle of the cover plate 14 to introduce sewage into the filter box 1.

[0033] In use, wastewater enters the filtration zone through the inlet box 13. After being filtered by the filter screen body 3, impurities are trapped in the filtration zone. The filter screen body 3 is flipped to the cleaning zone by the adjusting rod 17. The motor 4 is started to drive the cleaning mechanism 2 to operate. The water pump 5 supplies water to the cleaning mechanism 2 through the water pipe 22. The delivery pipe 23 delivers water to the brush head of the cleaning brush 202 to brush the filter screen body 3. The wastewater after brushing flows into the cleaning zone and is discharged through the drain outlet. When the adjusting rod 17 drives the filter screen body 3 to flip to the cleaning zone, the limiting slope 26 limits the flipping angle. The limiting pin 10 is fixed to the cleaning mechanism 2 by the spring 11.

[0034] Reference Figure 7 - Figure 9 The cleaning mechanism 2 includes a cleaning housing 201 and a cleaning brush 202 that slides back and forth at the bottom end of the cleaning housing 201. The shape of the cleaning housing 201 is as follows (e.g., Figure 7 As shown), the lower end of the cleaning brush 202 is provided with nylon bristles with a hardness of 6.5-7.0 (Mohs hardness), which can withstand water washing and is not easily worn. Water inlet holes 211 are provided on both sides of the top of the cleaning brush 202. The water inlet holes 211 are fixedly connected to the end of the delivery pipe 23 away from the water pump 5. Several water outlet holes 210 are provided on both sides of the upper end of the cleaning brush 202 for rinsing the dirt on the surface of the toothed plate 203 when the cleaning brush 202 cleans the filter screen plate body 3. A connecting sleeve 212 is fixedly provided on the side of the cleaning housing 201 near the adjusting rod 29. A circular hole 214 is provided inside the connecting sleeve 212. The end of the connecting sleeve 212 away from the cleaning housing 201 is fixedly sleeved on the middle of the adjusting rod 29 through the circular hole 214. The end of the connecting sleeve 212 away from the cleaning housing 201 is located inside the storage groove 18.

[0035] In use, the motor 4 drives the rotating shaft 208 to rotate. The rotating shaft 208 rotates through the meshing of the spur gear 206 with the two spur gears 205 on both sides. The rotation of the rotating shaft 208 drives the half gear 204 on the rotating shaft 207 to rotate. The half gear 204 meshes with the side teeth of the toothed plate 203, thereby pushing the toothed plate 203 to slide back and forth in the V-groove 209 of the cleaning housing 201 through the slider 213. This drives the cleaning brush 202 to brush back and forth along the surface of the filter screen body 3. At the same time, the water pump 5 supplies water to the three-way pipe of the fixed block 24 through the water pipe 22. The water enters through the water inlet 211 of the cleaning brush 202 through the delivery pipe 23 and is finally sprayed out through multiple water outlets 210, achieving a dual cleaning effect of brushing and rinsing.

[0036] A V-shaped groove 209 is symmetrically formed at the lower center of the cleaning housing 201. A slider 213 is slidably arranged inside the V-shaped groove 209. The shape of the V-shaped groove 209 is adapted to the shape of the toothed plate 203. The bottom end of the slider 213 is fixed to the middle of the top end of the cleaning brush 202. The toothed plate 203 is fixed to the top end of the slider 213. The toothed plate 203 slides in the middle of the inner bottom surface of the cleaning housing 201. The width of the toothed plate 203 is greater than the width of the slider 213. Half gears 204 are provided on both sides of the toothed plate 203. The teeth on the surface of the half gears 204 are... The half gear 204 is fixedly provided with a rotating shaft 207 through the middle of the half gear 204, which meshes with the teeth on the side of the toothed plate 203. The two ends of the rotating shaft 207 are rotatably connected to the inner top surface and the inner bottom surface of the cleaning housing 201, respectively. A spur gear 205 is fixedly sleeved on the upper end of the rotating shaft 207 outside the half gear 204. A spur gear 206 is provided between the two spur gears 205. The spur gear 206 is located directly above the toothed plate 203. The teeth on the surface of the spur gear 205 mesh with the teeth on the surface of the spur gear 206.

[0037] When the filter screen body 3 is rotated by the knob 2 of the adjusting rod 1 7, it drives the fixing block 1 6 and the filter screen body 3 to flip to the filtration area of ​​the filter box 1, so that the limiting block 8 is engaged in the limiting groove 16 to complete the sealing of the filtration area. When the filter screen body 3 needs to be cleaned, the adjusting rod 1 7 is rotated to flip the filter screen body 3 to the cleaning area, so that the slope of the limiting slope 26 limits the flipping angle of the filter screen body 3 to be consistent with the cleaning housing 201, ensuring that the bottom end of the cleaning brush 202 is in parallel contact with the surface of the filter screen body 3, so as to achieve efficient cleaning.

[0038] A rotating shaft 208 is fixedly installed through the middle of the spur gear 206. A round hole is opened in the middle of the top of the cleaning housing 201. The upper end of the rotating shaft 208 is rotatably installed through the round hole. The top of the rotating shaft 208 is fixed to the output end of the water pump 5. The bottom end of the rotating shaft 208 and the bottom end of the toothed plate 203 are separated by a gap so that the rotating shaft 208 does not affect the sliding of the toothed plate 203 when it rotates. The inner bottom surface of the storage groove 18 is a slope. The inclination angle of the inner bottom surface of the storage groove 18 is the same as the inclination angle of the top of the limiting slope 26. When the cleaning housing 201 is flipped to the top of the filter screen body 3, the flipping angle is the same as that of the filter screen body 3. This makes the bottom end of the cleaning brush 202 parallel to the surface of the filter screen body 3, and the bottom end of the cleaning brush 202 slides on the surface of the filter screen body 3.

[0039] By pulling the limiting pin 10 upward, the restriction on the cleaning housing 201 is released. By rotating the adjusting rod 29, the connecting sleeve rod 212 and the cleaning housing 201 are rotated, so that the rotation angle of the cleaning housing 201 and the filter screen body 3 are consistent. This allows the bottom end of the cleaning brush 202 to make parallel contact with the surface of the filter screen body 3, cleaning the surface of the filter screen body 3. By rotating the adjusting rod 29 in the opposite direction, the cleaning housing 201 is put into the storage groove 18. At this time, the wedge-shaped structure at the lower end of the limiting pin 10 is inserted into the limiting hole 21, and the spring 11 provides a rebound force to achieve automatic fixation of the cleaning housing 201.

[0040] The implementation principle of a wastewater treatment device for easy cleaning of filter screens according to an embodiment of this application is as follows: When the device is in use, wastewater enters the filtration zone through the inlet box 13. After being filtered by the filter screen body 3, impurities are trapped. When cleaning is required, the filter screen is flipped to the cleaning zone by adjusting rod 1 7. The motor 4 drives the gear transmission system of the cleaning mechanism 2 to make the cleaning brush 202 brush the filter screen body 3 back and forth. At the same time, the water pump 5 supplies water through the water pipe 22 and the delivery pipe 23 to the water outlet 210 of the cleaning brush 202 to flush away the stains, realizing the dual cleaning of brushing and rinsing. After cleaning, the wastewater is discharged through the drain outlet of the cleaning zone. The cleaning mechanism 2 can be stored in the storage tank 18 by adjusting rod 2 9 and fixed by the limiting pin 10 and the spring 11.

[0041] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wastewater treatment device that facilitates cleaning of filter screens, characterized in that: The filter box (1) includes a filter screen body (3) which is rotatably disposed in the middle of the filter box (1). A cleaning mechanism (2) for cleaning and brushing the filter screen body (3) is rotatably disposed on one side of the inner wall of the filter box (1). A motor (4) for providing driving force to the cleaning mechanism (2) is disposed at the top of the cleaning mechanism (2). A water pump (5) for supplying water to the cleaning mechanism (2) is fixedly disposed on one side of the top of the filter box (1). The cleaning mechanism (2) includes a cleaning housing (201) and a cleaning brush (202) that is reciprocally slidably disposed at the bottom end of the cleaning housing (201).

2. The wastewater treatment device for easy cleaning of the filter screen as described in claim 1, characterized in that: The filter box (1) is divided into a cleaning area and a filtration area. The side wall of the cleaning area of ​​the filter box (1) is provided with a storage groove (18) for accommodating the cleaning mechanism (2). The top of the filtration area of ​​the filter box (1) is fixed with an inlet box (13) that is connected to the sewage source.

3. The wastewater treatment device for easy cleaning of the filter screen as described in claim 1, characterized in that: The cleaning housing (201) has a slider (213) slidably disposed at the lower middle part, which is fixed to the top middle part of the cleaning brush (202). The top of the slider (213) is fixedly provided with a toothed plate (203). Half gears (204) mesh on both sides of the toothed plate (203). A rotating shaft (207) is fixedly disposed through the middle of the half gear (204). A spur gear (205) is fixedly sleeved on the upper end of the rotating shaft (207) outside the half gear (204). A spur gear (206) meshes between the two spur gears (205).

4. A wastewater treatment device for easy cleaning of filter screens according to claim 3, characterized in that: The two ends of the first rotating shaft (207) are rotatably connected to the inner top surface and the inner bottom surface of the cleaning housing (201), respectively. The middle part of the second spur gear (206) is fixedly provided with a second rotating shaft (208) that passes through the middle of the top of the cleaning housing (201). The top of the second rotating shaft (208) is fixed to the output end of the motor (4).

5. A wastewater treatment device for easy cleaning of filter screens according to claim 1, characterized in that: The cleaning mechanism (2) has a fixed block two (24) with an embedded three-way pipe fixed on one side. The three openings of the fixed block two (24) are respectively fixedly connected to the conveying pipe (23) and the water pipe (22) fixedly connected to the water outlet of the water pump (5). The top two sides of the cleaning brush (202) are provided with water inlet holes (211) fixedly connected to the end of the conveying pipe (23) away from the water pump (5). Several water outlet holes (210) are opened on both sides of the upper end of the cleaning brush (202).

6. A wastewater treatment device for easy cleaning of filter screens according to claim 1, characterized in that: The filter box (1) has an adjusting rod (9) rotatably installed at the lower end of the cleaning area. One end of the adjusting rod (9) is fixedly fitted with a connecting sleeve (212). The connecting sleeve (212) is fixed to the side away from the adjusting rod (9) and the cleaning shell (201).

7. A wastewater treatment device for easy cleaning of filter screens according to claim 2, characterized in that: The filter box (1) is rotatably provided with an adjusting rod (7) at the lower middle part. A fixing block (6) is fixedly sleeved in the middle of the adjusting rod (7). The end of the fixing block (6) away from the adjusting rod (7) is fixed to one side of the filter screen body (3). A limiting block (8) is provided on the side of the filter screen body (3) away from the fixing block (6). A limiting groove (16) adapted to the limiting block (8) is provided on the side wall of the filter area.

8. A wastewater treatment device for easy cleaning of filter screens according to claim 2, characterized in that: The inner top surface of the storage slot (18) is symmetrically and movably inserted with a limiting pin (10). The upper end of the limiting pin (10) located outside the limiting hole (21) is fitted with a spring (11). The two ends of the spring (11) are respectively fixed to the upper end of the limiting pin (10) and the top end of the filter box (1).

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