Efficient and environment-friendly self-cleaning sewage filtering device

Abstract

The invention discloses an efficient and environment-friendly self-cleaning sewage filtering device, and belongs to the technical field of sewage treatment.The efficient and environment-friendly self-cleaning sewage filtering device comprises a bottom plate, the upper portion of the bottom plate is movably connected with transverse plates, the opposite sides of the two transverse plates are jointly and fixedly connected with a filtering tank, the filtering tank is provided with a self-cleaning decontamination assembly, and a motor is started to drive a threaded rod to rotate; the threaded rod is in threaded connection with the moving disc, the dirt removing circular ring can remove dirt on the inner side wall of the filter pipe when the moving disc moves up and down in the vertical direction, the bottom plate and the filter tank are jointly provided with a sewage filtered matter collecting assembly, and when the moving disc moves upwards, filtered matter flows into the inner side of a penetrating pipe through a flow guide cover and then flows out through a locking plate. When the movable disc moves downwards, the locking plate can make contact with the dirt outlet disc, the upper end and the lower end of the movable disc do not communicate with each other, rotation of the servo motor can drive the dirt pushing plate to conduct circular motion, and the circular motion of the dirt pushing plate can push filtered objects to the inner side of the dirt collecting box.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a high-efficiency and environmentally friendly self-cleaning sewage filtering device. Background Art

[0002] In the field of modern industrial, civil and municipal water treatment, water quality safety has become a focus of attention in various industries, especially in industrial manufacturing, such as automobile manufacturing and mechanical processing. The cleanliness of the cooling water system is directly related to the operating efficiency and life of the equipment. Self-cleaning sewage filtration devices are suitable for sewage treatment systems of various sizes and types. They are widely used in industrial wastewater treatment, municipal water supply and drainage, agricultural irrigation and landscape water purification. They are an important technical means to achieve efficient utilization of water resources and environmental protection.

[0003] A search revealed a Chinese patent, CN116059731 B, which discloses a domestic sewage solid impurity filter. Compared to existing technologies, this patent, CN116059731 B, features a mounting frame, a filter barrel, a filter assembly, and an adjustment assembly. Initially, the drain ports of both the upper and lower filter barrels are closed, while the water inlet and outlet are open. Sewage enters the upper filter barrel through its inlet, flows upward along the lower filter barrel, and is filtered by multiple lower filters and adsorbed by an adsorption medium before being discharged from the lower filter barrel's outlet.

[0004] However, during the actual use of the above device, it is necessary to adjust the preset time of the component before changing the sewage flow direction to backwash the filter. However, during this preset time, the filter cannot be cleaned. The filter can only be cleaned after being used for a period of time. At this time, the filtering effect of the filter is compared with the cleaned filter. The cleaning effect will be worse. At the same time, the filtered matter is directly discharged without being collected, and the filtered matter will cause pollution to the environment. Therefore, it is necessary to propose an efficient and environmentally friendly self-cleaning sewage filtering device. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the filter cannot be cleaned within a preset time and can only be cleaned after being used for a period of time. At the same time, the filtered matter flushed is directly discharged without being collected, and the filtered matter will cause pollution to the environment. A high-efficiency and environmentally friendly self-cleaning sewage filter device is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The utility model discloses an efficient and environmentally friendly self-cleaning sewage filtering device, comprising a bottom plate, the upper part of the bottom plate is movably connected with a horizontal plate, the opposite sides of two groups of the horizontal plates are fixedly connected with a filter tank, the filter tank is provided with a self-cleaning decontamination assembly, the self-cleaning decontamination assembly comprises a filter tube movably connected to the filter tank, a motor, a threaded rod, a decontamination ring and a protective plate, the starting of the motor drives the threaded rod to rotate, the threaded rod is threadedly connected to the movable plate, the decontamination ring removes dirt from the inner wall of the filter tube when the movable plate moves up and down in the vertical direction, and the protective plate assists the decontamination ring to move in the horizontal direction. The bottom plate and the filter tank are jointly provided with a sewage filter collecting assembly, which includes a through-tube, a deflector, a sewage outlet tray, a second spring and a locking plate movably connected to the filter tank, and a servo motor, a sewage pushing plate and a sewage collecting box movably connected to the bottom plate. When the movable plate moves upward, the filtered material flows into the inner side of the through-tube through the deflector and then flows out through the locking plate. When the movable plate moves downward, the locking plate will contact the sewage outlet tray, and the upper and lower ends of the movable plate will not flow to each other. The rotation of the servo motor will drive the sewage pushing plate to perform circular motion, and the circular motion of the sewage pushing plate can push the filtered material to the inner side of the sewage collecting box.

[0008] The above technical solution further includes:

[0009] The bottom plate is symmetrically fixedly connected to one side of the horizontal plate with support columns, and the two groups of support columns are fixedly connected between the ends away from the bottom plate and the horizontal plate. The support columns mainly support the horizontal plate, and the horizontal plate is used to connect the support columns and the filter tank.

[0010] The end of the filter tank away from the bottom plate is fixedly connected to a protective cover, the outer side of the protective cover is fixedly connected to a water inlet pipe, the outer side of the filter tank is fixedly connected to a water outlet pipe, and sewage enters from the inner side of the water inlet pipe and exits from the inner side of the water outlet pipe.

[0011] The interior of the filter tank is fixedly connected to the filter tube, and the number of the filter tubes is multiple. A plurality of filter holes are opened on the outside of the filter tube, and the plurality of filter holes are linearly and evenly distributed along the filter tube. The filtrate produced by filtration will be adsorbed on the inner side of the filter tube, and finally the water will be discharged from the inner side of the outlet pipe.

[0012] The inner side of the filter tube is fixedly connected with a cross bar, the outer side of the cross bar is fixedly connected to the motor, the output shaft end of the motor is fixedly connected to the threaded rod, and the rotation of the output shaft end of the motor will drive the threaded rod to rotate.

[0013] The inner side of the movable disk is symmetrically provided with a sliding groove, and the inner side of the sliding groove is fixedly connected with a first spring, and the end of the first spring away from the sliding groove is fixedly connected to the dirt removal ring, and the end of the dirt removal ring away from the first spring is in contact with the inner side of the filter tube, and the outer side of the dirt removal ring is fixedly connected with a protective plate, and the end of the protective plate away from the dirt removal ring is slidably connected to the movable disk. The function of the first spring is that when the dirt removal ring is worn, the dirt removal ring can move toward the inner side of the filter tube due to the action of the first spring, and the function of the protective plate is to prevent external impurities from entering the inner side of the sliding groove.

[0014] The inner side of the movable plate is fixedly connected to the through-tube, and there are two groups of through-tubes. One end of the through-tube away from the bottom plate is fixedly connected to the air guide cover, and the other end of the through-tube away from the air guide cover is fixedly connected to the sewage outlet tray. When the movable plate moves upward, the filtered material will first contact the air guide cover, and then the filtered material will flow through the air guide cover to the through-tube, and finally flow out from the lower part of the sewage outlet tray.

[0015] The second spring is symmetrically fixedly connected to the side of the sewage outlet tray away from the through-tube, and the second spring is fixedly connected between the end away from the sewage outlet tray and the locking plate. When the movable tray moves downward, the locking plate will contact the lower part of the sewage outlet tray during the downward process. At this time, the upper and lower ends of the movable tray are not connected to each other.

[0016] The filter tank is fixedly connected to a dirt collecting bucket at one end away from the protective cover, the lower part of the dirt collecting bucket is fixedly connected to the servo motor, the output shaft end of the servo motor is fixedly connected to a shaft rod, the outer side of the shaft rod is fixedly connected to the dirt pushing plate, when the servo motor is started, the output shaft end of the servo motor rotates to drive the shaft rod to rotate, and the rotation of the shaft rod drives the dirt pushing plate to rotate.

[0017] The outer side of the sewage collecting barrel is fixedly connected to a sewage guide box, the side of the sewage guide box close to the bottom plate is fixedly connected to the sewage collecting box, and a connecting block is fixedly connected between the bottom plate and the sewage collecting box. The rotation of the sewage pushing plate can push the filtered material to the inner side of the sewage guide box, and then the filtered material will fall into the inner side of the sewage collecting box.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, a self-cleaning dirt removal component is provided. When the motor is started, the threaded rod is driven to rotate. The threaded rod and the movable disk are threadedly connected. When the movable disk moves up and down in the vertical direction, the dirt removal ring removes dirt from the inner wall of the filter tube. The protective plate assists the dirt removal ring to move in the horizontal direction. Through the cyclic back and forth movement of the dirt removal ring and the protective plate, the inner side of the filter tube can be kept clean at all times, and the cleaning effect is better.

[0020] 2. In the present invention, a sewage filter collection component is provided. When the movable disc moves upward, the filter flows into the inner side of the through-tube through the guide cover and then flows out through the locking plate. When the movable disc moves downward, the locking plate will contact the sewage outlet disc. The upper and lower ends of the movable disc do not flow to each other. The rotation of the servo motor will drive the sewage pushing plate to perform circular motion. The circular motion of the sewage pushing plate can push the filter to the inner side of the sewage collection box. By collecting the filter, it avoids the situation where the washed filter is directly discharged without being collected, and the filter will cause pollution to the environment. This design not only effectively prevents the direct pollution of the filter to the environment by the filter, but also reduces the potential ecological risks caused by the loss of the filter, and embodies the application of environmental protection concepts in actual water treatment technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency and environmentally friendly self-cleaning sewage filtration device proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a high-efficiency and environmentally friendly self-cleaning sewage filtering device proposed by the present invention;

[0023] Figure 3 This is a schematic structural diagram of the sewage filter collection assembly of the present invention;

[0024] Figure 4 for Figure 2 A schematic diagram of the structure at center A;

[0025] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0026] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point D in the middle.

[0028] In the figure: 1. Base plate; 2. Support column; 3. Cross plate; 4. Filter tank; 5. Protective cover; 6. Water inlet pipe; 7. Filter tube; 8. Filter hole; 9. Cross bar; 10. Motor; 11. Threaded rod; 12. Moving plate; 13. Sliding groove; 14. First spring; 15. Decontamination ring; 16. Protective plate; 17. Through-tube; 18. Guide cover; 19. Sewage tray; 20. Second spring; 21. Locking plate; 22. Sewage collecting bucket; 23. Servo motor; 24. Shaft; 25. Sewage push plate; 26. Sewage guide box; 27. Sewage collecting box; 28. Connecting block; 29. Water outlet pipe. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1-Figure 7 As shown, the present invention proposes an efficient and environmentally friendly self-cleaning sewage filtering device, including a bottom plate 1, a horizontal plate 3 movably connected to the upper part of the bottom plate 1, a filter tank 4 is fixedly connected to the opposite sides of the two sets of horizontal plates 3, and a self-cleaning decontamination component is provided on the filter tank 4. The self-cleaning decontamination component includes a filter tube 7 movably connected to the filter tank 4, a motor 10, a threaded rod 11, a decontamination ring 15 and a protective plate 16. The start of the motor 10 will drive the threaded rod 11 to rotate, and the threaded rod 11 and the movable disk 12 are threadedly connected. When the movable disk 12 moves up and down in the vertical direction, the decontamination ring 15 will decontaminate the inner wall of the filter tube 7, and the protective plate 16 will assist the decontamination ring 15 to move in the horizontal direction. The bottom plate 1 A sewage filter collection component is provided together with the filter tank 4, and the sewage filter collection component includes a through-tube 17, a deflector 18, a sewage outlet tray 19, a second spring 20 and a locking plate 21 movably connected on the filter tank 4, and a servo motor 23, a sewage pushing plate 25 and a sewage collecting box 27 movably connected on the bottom plate 1. When the movable disk 12 moves upward, the filtered material flows into the inner side of the through-tube 17 through the deflector 18, and then flows out through the locking plate 21. When the movable disk 12 moves downward, the locking plate 21 will contact the sewage outlet tray 19, and the upper and lower ends of the movable disk 12 will not flow to each other. The rotation of the servo motor 23 will drive the sewage pushing plate 25 to perform circular motion, and the circular motion of the sewage pushing plate 25 can push the filtered material to the inner side of the sewage collecting box 27.

[0032] The support columns 2 are symmetrically fixedly connected to one side of the bottom plate 1 close to the horizontal plate 3. The two groups of support columns 2 are fixedly connected between the end away from the bottom plate 1 and the horizontal plate 3. The support columns 2 mainly play the role of supporting the horizontal plate 3, and the function of the horizontal plate 3 is to connect the support columns 2 and the filter tank 4.

[0033] The end of the filter tank 4 away from the bottom plate 1 is fixedly connected to the protective cover 5, the outside of the protective cover 5 is fixedly connected to the water inlet pipe 6, the outside of the filter tank 4 is fixedly connected to the water outlet pipe 29, and the sewage enters from the inside of the water inlet pipe 6 and exits from the inside of the water outlet pipe 29.

[0034] The interior of the filter tank 4 is fixedly connected to the filter tube 7. There are multiple groups of filter tubes 7. A plurality of filter holes 8 are provided on the outside of the filter tube 7. The plurality of filter holes 8 are linearly and evenly distributed along the filter tube 7. The filtered matter produced by the filtration will be adsorbed on the inner side of the filter tube 7, and finally the water will be discharged from the inner side of the outlet pipe 29.

[0035] The inner side of the filter tube 7 is fixedly connected to a cross bar 9, the outer side of the cross bar 9 is fixedly connected to the motor 10, and the output shaft end of the motor 10 is fixedly connected to the threaded rod 11. The rotation of the output shaft end of the motor 10 will drive the threaded rod 11 to rotate.

[0036] A sliding groove 13 is symmetrically provided on the inner side of the movable disk 12, and a first spring 14 is fixedly connected to the inner side of the sliding groove 13. The end of the first spring 14 away from the sliding groove 13 is fixedly connected to the dirt removal ring 15, and the end of the dirt removal ring 15 away from the first spring 14 contacts the inner side of the filter tube 7. A protective plate 16 is fixedly connected to the outer side of the dirt removal ring 15, and the end of the protective plate 16 away from the dirt removal ring 15 is slidably connected to the movable disk 12. The function of the first spring 14 is that when the dirt removal ring 15 is worn, the dirt removal ring 15 can move toward the inner side of the filter tube 7 due to the action of the first spring 14, and the function of the protective plate 16 is to prevent external impurities from entering the inner side of the sliding groove 13.

[0037] In this embodiment, the start of the motor 10 will drive the threaded rod 11 to rotate, and the threaded rod 11 and the movable plate 12 are threadedly connected. When the movable plate 12 moves up and down in the vertical direction, the decontamination ring 15 will decontaminate the inner wall of the filter tube 7, and the protective plate 16 will assist the decontamination ring 15 to move in the horizontal direction. By the cyclic back and forth movement of the decontamination ring 15 and the protective plate 16, the inner side of the filter tube 7 can be kept clean at all times. The specific implementation method is that the support column 2 serves to connect the bottom plate 1 and the cross plate 3. The support column 2 mainly plays the role of supporting the horizontal plate 3. The role of the horizontal plate 3 is to connect the support column 2 and the filter tank 4. The sewage is mainly filtered on the inner side of the filter tank 4. The role of the shield 5 is to connect the filter tank 4 and the water inlet pipe 6. The sewage enters from the inner side of the water inlet pipe 6 and will be collected on the inner side of the shield 5. Then the sewage will flow into the inner side of multiple filter tubes 7. When it flows into the inner side of the filter tube 7, it will pass through the filter hole 8 for filtration. The filtered matter will be adsorbed on the inner side of the filter tube 7. Finally, the water will be discharged from the inner side of the outlet pipe 29. Discharge, in this device, the filter material inside the filter tube 7 can be self-cleaned. The specific implementation method is that the cross bar 9 is used to connect the filter tube 7 and the motor 10. When the motor 10 is started, the output shaft end of the motor 10 rotates to drive the threaded rod 11 to rotate. Since the threaded rod 11 and the movable disk 12 are threadedly connected, the rotation of the threaded rod 11 drives the movable disk 12 to move back and forth in the vertical direction. During the movement of the movable disk 12, the decontamination ring 15 is driven to move, and the outer side of the decontamination ring 15 is It contacts the inner side of the filter tube 7. When the dirt removal ring 15 moves, the dirt removal ring 15 will remove the filtered material on the inner side of the filter tube 7, so that the filtered material floats on the inner side of the filter tube 7. The function of the first spring 14 is that when the dirt removal ring 15 is worn, the dirt removal ring 15 can move toward the inner side of the filter tube 7 due to the action of the first spring 14. The function of the protective plate 16 is to prevent external impurities from entering the inner side of the sliding groove 13. The protective plate 16 can slide on the outer side of the movable disk 12 due to the action of the dirt removal ring 15.

[0038] Example 2

[0039] like Figure 1-Figure 7 As shown, based on the first embodiment, the inner side of the movable plate 12 is fixedly connected to the through-tube 17, the number of the through-tube 17 is two groups, the through-tube 17 is fixedly connected between the end away from the bottom plate 1 and the air guide cover 18, and the through-tube 17 is fixedly connected between the end away from the air guide cover 18 and the sewage tray 19. When the movable plate 12 moves upward, the filtered material will first contact the air guide cover 18, and then the filtered material will flow through the air guide cover 18 to the through-tube 17, and finally flow out from the lower part of the sewage tray 19.

[0040] A second spring 20 is symmetrically fixedly connected to the side of the sewage outlet tray 19 away from the through-tube 17. The second spring 20 is fixedly connected to the end away from the sewage outlet tray 19 and the locking plate 21. When the movable tray 12 moves downward, the locking plate 21 will contact the lower part of the sewage outlet tray 19 during the downward process. At this time, the upper and lower ends of the movable tray 12 are not connected to each other.

[0041] One end of the filter tank 4 away from the protective cover 5 is fixedly connected to the dirt collecting bucket 22, the lower part of the dirt collecting bucket 22 is fixedly connected to the servo motor 23, the output shaft end of the servo motor 23 is fixedly connected to the shaft rod 24, and the outer side of the shaft rod 24 is fixedly connected to the dirt pushing plate 25. When the servo motor 23 is started, the rotation of the output shaft end of the servo motor 23 will drive the shaft rod 24 to rotate, and the rotation of the shaft rod 24 will drive the dirt pushing plate 25 to rotate.

[0042] A sewage guide box 26 is fixedly connected to the outside of the sewage collecting barrel 22, and the sewage guide box 26 is fixedly connected to the sewage collecting box 27 on the side close to the bottom plate 1. A connecting block 28 is fixedly connected between the bottom plate 1 and the sewage collecting box 27. The rotation of the sewage pushing plate 25 can push the filtered material to the inside of the sewage guide box 26, and then the filtered material will fall into the inside of the sewage collecting box 27.

[0043] In this embodiment, when the movable plate 12 moves upward, the filtered material flows into the inner side of the through-tube 17 through the air guide cover 18, and then flows out through the locking plate 21. When the movable plate 12 moves downward, the locking plate 21 will contact the sewage tray 19, and the upper and lower ends of the movable plate 12 will not flow to each other. The rotation of the servo motor 23 will drive the sewage pushing plate 25 to perform a circular motion. The circular motion of the sewage pushing plate 25 can push the filtered material to the inner side of the sewage collecting box 27. The specific implementation method is that when the movable plate 12 moves up and down, when the movable plate 12 moves upward, the filtered material will first contact the air guide cover 18, and then the filtered material will flow to the through-tube 17 through the air guide cover 18, and finally from the lower part of the sewage tray 19. The filter material is then pushed into the dirt collecting box 27 and the filter is collected, and the filter material is then pushed into the dirt collecting box 27. The filter material is then pushed into the dirt collecting box 27 and the filter is collected.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A highly efficient and environmentally friendly self-cleaning sewage filtering device, comprising a bottom plate (1), characterized in that: The upper part of the bottom plate (1) is movably connected to a transverse plate (3), and the opposite sides of the two groups of transverse plates (3) are fixedly connected to a filter tank (4). The filter tank (4) is provided with a self-cleaning decontamination assembly, and the self-cleaning decontamination assembly comprises a filter tube (7) movably connected to the filter tank (4), a motor (10), a threaded rod (11), a decontamination ring (15) and a protective plate (16). When the motor (10) is started, the threaded rod (11) is driven to rotate. The threaded rod (11) is threadedly connected to the movable disk (12). When the movable disk (12) moves up and down in the vertical direction, the decontamination ring (15) decontaminates the inner wall of the filter tube (7). The protective plate (16) assists the decontamination ring (15) to move in the horizontal direction. The bottom plate (1) and the filter tank (4) are jointly provided with a decontamination ring. A water filter collecting component, wherein the sewage filter collecting component comprises a through-tube (17), a flow deflector (18), a sewage outlet plate (19), a second spring (20) and a locking plate (21) movably connected on a filter tank (4), and a servo motor (23), a sewage pushing plate (25) and a sewage collecting box (27) movably connected on a bottom plate (1); when the movable plate (12) moves upward, the filtered material flows into the inner side of the through-tube (17) through the flow deflector (18) and then flows out through the locking plate (21); when the movable plate (12) moves downward, the locking plate (21) contacts the sewage outlet plate (19), and the upper and lower ends of the movable plate (12) do not flow to each other; the rotation of the servo motor (23) drives the sewage pushing plate (25) to perform circular motion, and the circular motion of the sewage pushing plate (25) can push the filtered material to the inner side of the sewage collecting box (27).

2. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: The bottom plate (1) is symmetrically and fixedly connected to a side of the horizontal plate (3) with support columns (2), and two groups of support columns (2) are fixedly connected between one end away from the bottom plate (1) and the horizontal plate (3).

3. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: One end of the filter tank (4) away from the bottom plate (1) is fixedly connected to a protective cover (5), the outer side of the protective cover (5) is fixedly connected to a water inlet pipe (6), and the outer side of the filter tank (4) is fixedly connected to a water outlet pipe (29).

4. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: The interior of the filter tank (4) and the filter tube (7) are fixedly connected. The filter tubes (7) are provided in multiple groups. A plurality of filter holes (8) are provided on the outside of the filter tubes (7). The plurality of filter holes (8) are linearly and evenly distributed along the filter tubes (7).

5. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: A crossbar (9) is fixedly connected to the inner side of the filter tube (7), the outer side of the crossbar (9) is fixedly connected to the motor (10), and the output shaft end of the motor (10) is fixedly connected to the threaded rod (11).

6. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: A sliding groove (13) is symmetrically provided on the inner side of the movable disk (12), and a first spring (14) is fixedly connected to the inner side of the sliding groove (13), and an end of the first spring (14) away from the sliding groove (13) is fixedly connected to a dirt removal ring (15), and an end of the dirt removal ring (15) away from the first spring (14) contacts the inner side of the filter tube (7), and a protective plate (16) is fixedly connected to the outer side of the dirt removal ring (15), and an end of the protective plate (16) away from the dirt removal ring (15) is slidably connected to the movable disk (12).

7. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: The inner side of the movable plate (12) is fixedly connected to the through-tube (17), the through-tube (17) is provided in two groups, one end of the through-tube (17) away from the bottom plate (1) is fixedly connected to the air guide cover (18), and the other end of the through-tube (17) away from the air guide cover (18) is fixedly connected to the waste outlet tray (19).

8. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: A second spring (20) is symmetrically fixedly connected to one side of the dirt outlet tray (19) away from the through-tube (17), and one end of the second spring (20) away from the dirt outlet tray (19) is fixedly connected to a locking plate (21).

9. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 1, characterized in that: One end of the filter tank (4) away from the protective cover (5) is fixedly connected to a dirt collecting bucket (22), the lower part of the dirt collecting bucket (22) is fixedly connected to a servo motor (23), the output shaft end of the servo motor (23) is fixedly connected to a shaft (24), and the outer side of the shaft (24) is fixedly connected to a dirt pushing plate (25).

10. The efficient and environmentally friendly self-cleaning sewage filter device according to claim 9, characterized in that: The outer side of the dirt collecting barrel (22) is fixedly connected to a dirt guide box (26), a side of the dirt guide box (26) close to the bottom plate (1) is fixedly connected to the dirt collecting box (27), and a connecting block (28) is fixedly connected between the bottom plate (1) and the dirt collecting box (27).

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