Screen type self-cleaning filter

Abstract

The utility model relates to the technical field of filters, and discloses a net type self-cleaning filter which comprises a filter barrel and a protective column, a driving assembly for providing power is fixedly connected in the protective column, two connecting plates are fixedly connected to the bottom end of the driving assembly, side plates are fixedly connected to the left sides and the right sides of the two connecting plates, and the side plates are fixedly connected to the protective column. The device comprises a side plate, two limiting blocks are slidably connected into the side plate, two strip-shaped plates are fixedly connected to the far sides of the multiple limiting blocks, multiple brushes are fixedly connected to the far sides of the two strip-shaped plates, and a rotating assembly for transmitting power is rotatably connected into the side plate. According to the device, the transmission plate is driven to slide, so that the transmission plate can slide away from the interior of the limiting block, at the moment, the strip-shaped plate can be rapidly taken down, the brush can be replaced, a tool does not need to be matched with a bolt, and then the maintenance and replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a mesh self-cleaning filter. Background Technology

[0002] A mesh self-cleaning filter is a precision device that uses a filter screen to directly intercept impurities in water, removing suspended solids and particulate matter, reducing turbidity, purifying water quality, and minimizing the generation of system fouling, algae, and corrosion. This protects other equipment in the system and ensures its normal operation. In industrial production, such as steel, automotive, power generation, and petrochemical industries, impurities in water can cause wear, blockage, and corrosion to various equipment such as blast furnaces, rolling mills, continuous casting machines, boilers, heat exchangers, and pumps, affecting their normal operation and service life. Using a mesh self-cleaning filter can effectively intercept impurities and protect this equipment.

[0003] During normal filtration, water flows in through the inlet, passes through the filter screen to trap impurities, and flows out through the outlet. The timing of cleaning is determined by observing the pressure difference between the inlet and outlet; cleaning is necessary when the pressure difference reaches 0.05-0.1 MPa. During cleaning, close the inlet and outlet valves and use a brush to clean the filter screen to restore its functionality.

[0004] In existing technologies, some mesh self-cleaning filters may experience brush wear and damage during use, requiring repair. However, during repair and replacement, bolts and tools are needed to disassemble and replace the brushes. In practice, bolts need to be removed one by one, which reduces maintenance efficiency. Therefore, in order to address the above shortcomings, a mesh self-cleaning filter is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mesh self-cleaning filter, which aims to improve the problem that some existing mesh self-cleaning filters require bolts and tools to replace the brush part, making the operation complicated, time-consuming and labor-intensive.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mesh self-cleaning filter includes a filter barrel and a protective column. A power-providing drive assembly is fixedly connected inside the protective column. Two connecting plates are fixedly connected to the bottom end of the drive assembly. Side plates are fixedly connected to the left and right sides of the two connecting plates. Two limiting blocks are slidably connected inside the side plates. Two strip plates are fixedly connected to the far sides of the multiple limiting blocks. Multiple brushes are fixedly connected to the far sides of the two strip plates. A power-transmitting rotating assembly is rotatably connected inside the side plates. Circular plates are fixedly connected to the far sides of the two rotating assemblies. Two arc-shaped openings are formed inside the circular plates. A transmission column is slidably connected to the outside of the arc-shaped openings. A transmission plate is fixedly connected to the outer wall of the transmission column. Two side blocks are fixedly connected to the near sides of the two transmission plates. A spring is fixedly connected to the far sides of the multiple side blocks.

[0008] As a further description of the above technical solution:

[0009] The filter barrel is internally fixedly connected to two fixing rings, and the filter cylinder is internally fixedly connected to the two fixing rings. The filter cylinder is externally slidably connected to a misaligned cylinder. The inner walls of the left and right ends of the fixing rings are fixedly connected to springs two. The adjacent ends of the two springs two are fixedly connected to fixing plates, and the adjacent sides of the two fixing plates are fixedly connected to triangular elastic elements.

[0010] As a further description of the above technical solution:

[0011] The filter barrel is fixedly connected to both the upper and lower ends with support rings. The two support rings are fixedly connected to connecting rings on opposite sides by multiple bolts. The top side of one connecting ring is fixedly connected to the bottom side of the protective column, and the bottom side of the other connecting ring is fixedly connected to a trapezoidal hopper. The left end of the filter barrel is fixedly connected to a water inlet pipe, the right end of the filter barrel is fixedly connected to a water outlet pipe, and the bottom side of the trapezoidal hopper is fixedly connected to a discharge pipe.

[0012] As a further description of the above technical solution:

[0013] The drive assembly includes a motor, which is externally fixedly connected to the inside of the protective column, and a rotating shaft is fixedly connected to the drive end of the motor.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the rotating shaft is fixedly connected to the outside of the two connecting plates, and the outside of the transmission plate is slidably connected to the inside of the limiting block.

[0016] As a further description of the above technical solution:

[0017] The rotating assembly includes a rotating column, the outside of which is rotatably connected to the inside of the side plate, and a lever column is fixedly connected inside the rotating column.

[0018] As a further description of the above technical solution:

[0019] The two rotating columns are fixedly connected to the opposite sides of the two circular plates, respectively, and the inside of the side plates is slidably connected to the outside of the two side blocks.

[0020] As a further description of the above technical solution:

[0021] Multiple triangular openings are provided at both the upper and lower ends of the outer side of the misaligned cylinder, and the outer side of the triangular elastic element is slidably connected to the inside of the triangular openings.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by driving the circular plate to slide, under the restriction of the arc-shaped opening, the circular plate can drive the two contacting transmission columns to slide to the same side, thereby driving the transmission plate to slide, so that the transmission plate can slide away from the inside of the limiting block. At this time, the strip plate can be quickly removed and the brush can be replaced without the need to use tools and bolts, thereby improving the efficiency of maintenance and replacement.

[0024] 2. In this utility model, a force in the opposite direction is applied to the triangular elastic element by the fixing plate to engage it inside the triangular opening, thereby fixing the misaligned cylinder and making the misaligned cylinder and the filter cylinder misaligned. This allows for the filtration of impurities of different sizes according to requirements, thereby improving the flexibility of the device. Attached Figure Description

[0025] Figure 1 This is a perspective view of a mesh self-cleaning filter proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the connecting plate of a mesh self-cleaning filter proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the filter cylinder of a mesh self-cleaning filter proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the limiting block of a mesh self-cleaning filter proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6This is a schematic diagram of the transmission column of a mesh self-cleaning filter proposed in this utility model;

[0031] Figure 7 for Figure 3 Enlarged view of section B in the middle.

[0032] Legend:

[0033] 1. Filter barrel; 2. Protective column; 3. Motor; 4. Rotating shaft; 5. Connecting plate; 6. Side plate; 7. Limiting block; 8. Strip plate; 9. Brush; 10. Rotating column; 11. Assist column; 12. Circular plate; 13. Arc-shaped opening; 14. Transmission column; 15. Transmission plate; 16. Side block; 17. Spring 1; 18. Fixing ring; 19. Filter barrel; 20. Offset barrel; 21. Triangular opening; 22. Spring 2; 23. Fixing plate; 24. Triangular elastic element; 25. Support ring; 26. Connecting ring; 27. Trapezoidal hopper; 28. Inlet pipe; 29. ​​Outlet pipe; 30. Discharge pipe. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 2 to 4 This utility model provides an embodiment of a mesh self-cleaning filter, comprising a filter barrel 1 and a protective column 2. The filter barrel 1 is used to filter fluid. A drive assembly for providing power is fixedly connected inside the protective column 2. The drive assembly includes a motor 3, which is externally fixed inside the protective column 2 and secured by welding to ensure stable operation. A rotating shaft 4 is fixedly connected to the drive end of the motor 3, and the rotating shaft 4 is rotated by starting the motor 3. Two connecting plates 5 are fixedly connected to the bottom of the drive assembly, and side plates 6 are fixedly connected to the left and right sides of the two connecting plates 5, driving the two side plates 6 to rotate synchronously. Two limiting blocks 7 are slidably connected inside the side plates 6, allowing the limiting blocks 7 to slide stably. Two strip plates 8 are fixedly connected to the opposite sides of the multiple limiting blocks 7, providing stable support for the strip plates 8. Multiple brushes 9 are fixedly connected to the opposite sides of the two strip plates 8, and the brushes 9 are used to clean impurities.

[0036] Reference Figures 4 to 6The side plate 6 has a rotating assembly for transmitting power, which includes a rotating column 10. A lever column 11 is fixedly connected inside the rotating column 10. By gripping the lever column 11, a rotational force is applied, causing the rotating column 10 to rotate synchronously. Two circular plates 12 are fixedly connected to opposite sides of the two rotating assemblies. The opposite sides of the two rotating columns 10 are fixedly connected to the adjacent sides of the two circular plates 12, causing the circular plates 12 to rotate synchronously via the rotating columns 10. Two arc-shaped openings 13 are formed inside the circular plates 12. A transmission column 14 is slidably connected to the outside of the arc-shaped openings 13, adapting to the arc-shaped openings 13 and guiding their sliding. A transmission plate 15 is fixedly connected to the outer wall of the transmission column 14, causing the transmission plate 15 to slide synchronously via the transmission column 14. The transmission plate 15 is slidably connected to the inside of the limiting block 7, engaging the limiting block 7 by sliding the transmission plate 15 into its interior. Two side blocks 16 are fixedly connected to the adjacent sides of the two transmission plates 15, and the side blocks 16 slide synchronously driven by the transmission plates 15. The inside of the side plate 6 is slidably connected to the outside of the two side blocks 16, and the side blocks 16 can slide stably by the constraint of the side plate 6. A spring 17 is fixedly connected to the distant sides of the multiple side blocks 16. When the side blocks 16 slide, they compress the springs 17, which can store elastic potential energy and then give the side blocks 16 a force in the opposite direction to reset them.

[0037] Reference Figure 1 , Figure 2 and Figure 7 The filter barrel 1 has two fixed rings 18 inside, which are fixed by welding to ensure a stable connection. A filter cylinder 19 is fixedly connected inside the two fixed rings 18, also by welding, ensuring a stable connection between the filter cylinder 19 and the two fixed rings 18. A misaligned cylinder 20 is slidably connected to the outside of the filter cylinder 19. The misaligned cylinder 20 filters different impurities by interlocking with the filter cylinder 19. Multiple triangular openings 21 are provided at both the upper and lower ends of the outer side of the misaligned cylinder 20. A triangular elastic element 24 is slidably connected to the inside of the triangular openings 21, and the triangular openings 21 and the protrusions of the triangular elastic element 24 are matched to engage the triangular elastic element 24. Springs 22 are fixedly connected to the inner walls of both ends of the fixed rings 18, ensuring that the springs 22 are evenly stressed. Two springs 22 are fixedly connected to adjacent ends of each other by a fixed plate 23. During sliding, the fixed plate 23 compresses the spring 22, allowing it to store elastic potential energy, which in turn applies a force in the opposite direction to the fixed plate 23 for resetting. Two triangular elastic elements 24 are fixedly connected to adjacent sides of the two fixed plates 23, which can engage and restrict movement through their elastic deformation.

[0038] Both the upper and lower ends of the filter barrel 1 are fixedly connected to support rings 25 by welding. Connecting rings 26 are fixedly connected to the opposite sides of the two support rings 25 by multiple bolts, providing a secure connection and easy disassembly. The top of one connecting ring 26 is fixedly connected to the bottom of the protective column 2, providing stable support. A trapezoidal hopper 27 is fixedly connected to the bottom of the other connecting ring 26, used for discharging impurities. An inlet pipe 28 is fixedly connected to the left end of the filter barrel 1, introducing the fluid to be filtered into the filter barrel 1 and connecting to an external pipe with a valve. An outlet pipe 29 is fixedly connected to the right end of the filter barrel 1, discharging the filtered fluid from the filter barrel 1 and connecting to an external pipe with a valve. A discharge pipe 30 is fixedly connected to the bottom of the trapezoidal hopper 27, discharging impurities collected in the trapezoidal hopper 27 from the filter and connecting to an external pipe with a valve.

[0039] Working principle: Wastewater is discharged into the filter bucket 1 through the external pipe connected to the inlet pipe 28 and the valve is controlled. At the same time, it is filtered through the filter cylinder 19 and the staggered cylinder 20. Then, the valve of the external pipe connected to the outlet pipe 29 is opened to discharge the filtered water. Then, the valve of the external pipe connected to the discharge pipe 30 is opened to discharge impurities through the trapezoidal hopper 27 from the inside of the discharge pipe 30.

[0040] Simultaneously, the motor 3 drives the rotating shaft 4 to rotate, thereby rotating the connecting plate 5, which in turn rotates the side plate 6. This, in turn, drives the limiting block 7 and the surface brush 9 to clean the inner wall of the filter cylinder 19, achieving a self-cleaning effect. When it is necessary to replace the strip plate 8 and the surface brush 9, the bolts that fix the top support ring 25 and the connecting ring 26 are used to remove the internal components by removing the top connecting ring 26. By holding the rotating column 10 and applying rotational force with the support of the lever column 11, the circular plate 12 is driven to slide. Under the restriction of the arc-shaped opening 13, the circular plate 12 can drive the two contacting transmission columns 14 to slide towards the same side, thereby driving the transmission plate 15 to slide away from the inside of the limiting block 7. At this time, the strip plate 8 can be quickly removed and the brush 9 can be replaced without the need for tools and bolts, thus improving the efficiency of maintenance and replacement.

[0041] For applications requiring filtration, the misaligned cylinder 20 is rotated to create a misalignment between it and the filter cylinder 19. During this rotation, the filter cylinder 19 presses against the protrusion of the triangular elastic element 24, causing it to deform and push the fixed plate 23 to slide. This compresses the second spring 22, allowing it to store elastic potential energy. The fixed plate 23 then applies a counterforce to the triangular elastic element 24, locking it inside the triangular opening 21, thus fixing the misaligned cylinder 20. This misalignment between the cylinder and the filter cylinder 19 allows for the filtration of impurities of different sizes, improving the flexibility of the device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning screen filter comprising a filter tank (1) and a guard column (2), characterized in that: The inside of the guard column (2) is fixedly connected with a power-provided driving assembly, the bottom end of the driving assembly is fixedly connected with two connecting plates (5), the left and right sides of the two connecting plates (5) are fixedly connected with side plates (6), the inside of the side plate (6) is slidably connected with two limiting blocks (7), the far side of the plurality of limiting blocks (7) is fixedly connected with two strip plates (8), the far side of the two strip plates (8) is fixedly connected with a plurality of brushes (9), the inside of the side plate (6) is rotatably connected with a power-transmitting rotating assembly, the far side of the two rotating assemblies is fixedly connected with a circular plate (12), the inside of the circular plate (12) is provided with two arc-shaped openings (13), the outside of the arc-shaped opening (13) is slidably connected with a transmission column (14), the outer side wall of the transmission column (14) is fixedly connected with a transmission plate (15), the proximal side of the two transmission plates (15) is fixedly connected with two side blocks (16), and the far side of the plurality of side blocks (16) is fixedly connected with a spring (17).

2. A screen type self-cleaning filter according to claim 1, characterized in that: The inside of the filter barrel (1) is fixedly connected with two fixed rings (18), the inside of the two fixed rings (18) is fixedly connected with a filter cylinder (19), the outside of the filter cylinder (19) is slidably connected with a staggered cylinder (20), the left and right end inner walls of the fixed ring (18) are fixedly connected with a spring (22), the proximal end of the two springs (22) is fixedly connected with a fixed plate (23), and the proximal side of the two fixed plates (23) is fixedly connected with a triangular elastic element (24).

3. A screen type self-cleaning filter according to claim 1, characterized in that: The upper and lower ends of the filter barrel (1) are fixedly connected with support rings (25), the far side of the two support rings (25) is fixedly connected with a connecting ring (26) through a plurality of bolts, one of the connecting rings (26) is fixedly connected to the bottom side of the guard column (2), the other connecting ring (26) is fixedly connected with a trapezoidal hopper (27) at the bottom side, the left end of the filter barrel (1) is fixedly connected with a water inlet pipe (28), the right end of the filter barrel (1) is fixedly connected with a water outlet pipe (29), and the bottom side of the trapezoidal hopper (27) is fixedly connected with a discharge pipe (30).

4. The screen self-cleaning filter according to claim 1, characterized in that: The driving assembly comprises a motor (3), and the outside of the motor (3) is fixedly connected to the inside of the guard column (2).

5. A screen type self-cleaning filter according to claim 4, characterized in that: The bottom end of the transmission plate (15) is slidably connected in the inside of the limiting block (7).

6. A screen type self-cleaning filter according to claim 1, characterized in that: The rotating assembly comprises a rotating column (10), the outside of the rotating column (10) is rotatably connected in the inside of the side plate (6), and the inside of the rotating column (10) is fixedly connected with a leverage column (11).

7. A screen type self-cleaning filter according to claim 6, characterized in that: The far side of the two rotating columns (10) is respectively fixedly connected to the proximal side of the two circular plates (12), and the inside of the side plate (6) is slidably connected to the outside of the two side blocks (16).

8. A screen type self-cleaning filter according to claim 2, characterized in that: The misalignment cylinder (20) is provided with a plurality of triangular openings (21) at both upper and lower ends of the outer side, and the triangular elastic members (24) are slidably connected to the inside of the triangular openings (21).

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