Filter with self-cleaning function

Abstract

The utility model relates to filter technical field, especially a filter with self -cleaning function, including filter drum, scraping piece and flushing spare, the top surface center of filter drum is fixed with the water inlet cylinder in vertical intercommunication, and the inner wall of filter drum both ends is vertically fixed with the ring of inserting in the upper and lower, the inside of filter drum is vertically provided with the net cylinder, and the bottom surface center of filter drum is fixed with the screw ring in vertical intercommunication, the bottom of the outer circumferential surface of filter drum is fixed with the drainage ring in intercommunication, the scraping piece includes screw shell and scraping frame, and the screw shell is screwed in the screw ring, and the top surface of screw shell is vertically rotatably connected with scraping frame, and the scraping frame is inserted into the inside of net cylinder, and the both sides of scraping frame are provided with scraping strip and brush plate respectively. The utility model solves the problem that the traditional cleaning step is complicated and depends on many people. After adopting the technology, a single person can complete the cleaning, the manual operation intensity is reduced, the equipment component damage caused by disassembly is avoided, and the filtering efficiency is ensured.

Description

Technical Field

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

[0002] Mesh filters can be used to intercept solid impurities in crude oil pipelines, preventing impurities from wearing down precision components such as pumps and valves; in the pharmaceutical manufacturing field, they can be used to filter particles in liquid medicines, ensuring drug purity; in industrial circulating water systems, they can filter impurities such as silt and microbial flocs in the water, preventing heat exchanger pipe blockage and ensuring heat exchange efficiency.

[0003] However, existing mesh filters suffer from small filtration area and low dirt holding capacity, making them prone to clogging. The core filtration component of most existing mesh filters is a single cylindrical mesh, limiting the filtration area. This limited area and capacity lead to rapid blockage by impurities, forming a filter cake layer that significantly increases fluid resistance. This not only affects filtration efficiency but can also damage the filter due to excessive pressure differential, rendering it ineffective and requiring frequent shutdowns for cleaning. Furthermore, existing mesh filters often use flange connections and bolts to fix the filter to the housing. When the filter becomes clogged and needs cleaning, multiple disassembly steps are required: first, close the filter's inlet and outlet valves to cut off the fluid supply; then, remove the bolts securing the housing to the end caps to open the housing; finally, remove the internal mesh cylinder and transport it to the cleaning area for removal of impurities via high-pressure water jet rinsing, chemical soaking, or manual brushing.

[0004] However, the aforementioned filter screens lack self-cleaning components. Disassembly and cleaning require reversing the steps of screen cylinder installation, outer shell reinstallation, and bolt tightening. The entire disassembly, cleaning, and reassembly process requires multiple workers and is time-consuming. This cumbersome operation not only increases the labor intensity of workers but also prolongs equipment downtime. Downtime caused by cleaning will directly affect the production schedule, and the equipment cannot work during disassembly and cleaning, seriously affecting production efficiency. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes a filter with self-cleaning function.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a filter with self-cleaning function, including a filter cylinder, a scraper, and a rinsing component. A water inlet cylinder is vertically connected and fixed at the center of the top surface of the filter cylinder, and insert rings are vertically fixed at both the upper and lower ends of the inner wall of the filter cylinder. A mesh cylinder is vertically arranged inside the filter cylinder, and a screw ring is vertically connected and fixed at the center of the bottom surface of the filter cylinder. A drain ring is connected and fixed at the bottom of the outer circumference of the filter cylinder. The scraper includes a screw shell and a scraper frame. The screw shell is threadedly assembled in the screw ring, and the scraper frame is vertically rotatably connected to the top surface of the screw shell. The scraper frame is inserted into the inside of the mesh cylinder. Scraper strips and brush plates are respectively arranged on both sides of the scraper frame. The rinsing component includes a water box ring, which is horizontally rotatably connected to the top surface of the filter cylinder. Multiple spray rods are vertically connected and fixed to the bottom surface of the water box ring, and the multiple spray rods are arranged on the outer wall of the mesh cylinder.

[0007] As a preferred embodiment, both the upper and lower ends of the filter cylinder are vertically connected and fixed with insertion tubes, and the insertion tubes are slidably inserted into the insertion rings at the upper and lower ends of the filter cylinder.

[0008] As a preferred embodiment, a cleaning motor is vertically fixed to the top of the outer circumference of the filter cartridge, and a cleaning gear is horizontally fixed to the output end of the cleaning motor.

[0009] As a preferred embodiment, a toothed ring is vertically fixed on the top surface of the water box ring, and the toothed ring meshes with the cleaning gear.

[0010] As a preferred option, a water supply rotating ring is rotatably connected to the top surface of the water box ring.

[0011] As a preferred embodiment, rods are horizontally slidably inserted on both sides of the scraping frame, and compression springs are horizontally fixed between the rods and the scraping frame. The scraper and the brush are respectively fixed on the rods on both sides of the scraping frame.

[0012] As a preferred embodiment, a scraping motor is vertically fixed on the bottom surface of the screw housing, and the output end of the scraping motor is fixed on the bottom surface of the scraping frame.

[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention achieves filter screen cleaning without disassembly through an integrated self-cleaning design combining mechanical scraping and backwashing. When impurities adhere to the inner wall of the screen cylinder, causing a decrease in filtration efficiency, there is no need to close the filter's inlet and outlet valves. Simply start the scraping motor and cleaning motor; the scraping motor drives the scraping frame to rotate, and the backwashing system simultaneously sprays water, thoroughly cleaning the impurities on the inner wall of the screen cylinder. This significantly reduces the time required compared to traditional disassembly and cleaning processes. The entire cleaning process eliminates the need for complex steps such as disassembling the outer casing bolts and removing the screen cylinder. Workers only need to start the cleaning program through the control panel to achieve automated cleaning, solving the problems of cumbersome traditional cleaning procedures and reliance on multiple people. With this technology, cleaning can be completed by a single person, reducing manual labor intensity and avoiding damage to equipment components caused by disassembly, thus ensuring filtration efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the filter cartridge in the disassembled state in an embodiment of this utility model; Figure 4 This is a schematic diagram of the scraping component in the disassembled state in an embodiment of this utility model; Figure 5 This is a schematic diagram of the flushing component in the disassembled state in an embodiment of this utility model.

[0015] In the diagram: 1. Filter cylinder; 11. Inlet cylinder; 12. Insert ring; 13. Threaded ring; 14. Mesh cylinder; 15. Insert pipe; 16. Cleaning motor; 17. Cleaning gear; 18. Drain ring; 2. Scraper; 21. Threaded shell; 22. Scraper motor; 23. Scraper frame; 24. Rod; 25. Compression spring; 26. Scraper blade; 27. Brush plate; 3. Rinsing component; 31. Water box ring; 32. Gear ring; 33. Water supply rotating ring; 34. Spray bar. Detailed Implementation

[0016] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] like Figures 1 to 5As shown, a filter with a self-cleaning function includes a filter cylinder 1, a scraper 2, and a flushing component 3. A water inlet cylinder 11 is vertically connected and fixed at the center of the top surface of the filter cylinder 1, and insertion rings 12 are vertically fixed at both the upper and lower ends of the inner wall of the filter cylinder 1. A mesh cylinder 14 is vertically arranged inside the filter cylinder 1, and a screw ring 13 is vertically connected and fixed at the center of the bottom surface of the filter cylinder 1. A drain ring 18 is connected and fixed at the bottom of the outer circumference of the filter cylinder 1. The scraper 2 includes a screw housing 21 and a scraper frame 23. The screw housing 21 is threaded into the screw ring 13, and the scraper frame 23 is vertically rotatably connected to the top surface of the screw housing 21. The scraper 23 is inserted into the inside of the screen cylinder 14. Scraper strips 26 and brush plates 27 are respectively provided on both sides of the scraper 23. The rinsing component 3 includes a water box ring 31, which is horizontally rotatably connected to the top surface of the filter cylinder 1. Multiple spray rods 34 are vertically connected and fixed to the bottom surface of the water box ring 31, and these spray rods 34 are located on the outer wall of the screen cylinder 14. The filter cylinder 1 is used to filter impurities in the water. Its top is equipped with a water inlet cylinder 11 to introduce water to be treated; its bottom is equipped with a screw ring 13 connected to the scraper 2 for internal cleaning; and a drain ring 18 is also connected to the bottom for draining the treated water. The screw housing 21 of the scraper 2 is connected to the screw ring 13 by threads and can rotate within the screw ring 13. The scraper 23 on the top surface can rotate vertically. The scraper strips 26 and brush plates 27 are used to scrape away impurities inside the screen cylinder 14 when the scraper 23 rotates, keeping the screen cylinder clean. The water box ring 31 in the rinsing component 3 is mounted on top of the filter cylinder 1 and can rotate. Multiple spray rods 34 connected to its bottom surface spray water onto the outer wall of the screen cylinder 14 to rinse the screen cylinder 14 and further remove impurities adhering to the outer wall of the screen cylinder. This allows the filter to automatically clean impurities inside and outside the filter cylinder during use, ensuring long-term stable filtration performance.

[0018] In one embodiment, such as Figure 2 and 3 As shown, both the upper and lower ends of the filter cylinder 14 are vertically connected and fixed with insertion tubes 15, which are slidably inserted into the insertion rings 12 at the upper and lower ends of the filter cylinder 1. The filter cylinder 14 serves as a main structure for filtration, and its vertical connection at both ends ensures that the liquid can pass smoothly through the entire filtration device. The insertion tubes 15 act as connectors, forming a sliding seal between the filter cylinder 14 at both ends and the insertion rings 12 of the filter cylinder 1, ensuring that the liquid can pass smoothly during the filtration process and facilitating the disassembly, assembly, and cleaning of the filter cylinder 14. When the entire system is working, the liquid enters from one end of the filter cylinder 14, undergoes preliminary filtration through its internal filter layer, and then passes through the slidingly inserted insertion tubes 15 to the next stage filter cylinder or other treatment equipment for further fine filtration, thereby achieving efficient and flexible filtration and purification effects.

[0019] In one embodiment, such as Figure 3 and5 As shown, a cleaning motor 16 is vertically fixed to the top of the outer circumference of the filter cylinder 1, and a cleaning gear 17 is horizontally fixed to the output end of the cleaning motor 16. A gear ring 32 is vertically fixed to the top surface of the water box ring 31, and the gear ring 32 meshes with the cleaning gear 17. A water supply rotating ring 33 is rotatably connected to the top surface of the water box ring 31. The filter cylinder 1 is used to filter impurities, and the cleaning motor 16 installed at the top of its outer circumference serves as a drive device, providing rotational power through the cleaning gear 17 fixedly connected to its output end. The top surface of the water box ring 31 is provided with a gear ring 32 that meshes with the cleaning gear 17, ensuring that the rotation of the cleaning gear 17 can drive the water box ring 31 to rotate synchronously. The water supply rotating ring 33 can rotate freely on the top surface of the water box ring 31 to adjust the direction and angle of water supply. The overall technical effect is as follows: the cleaning motor 16 drives the cleaning gear 17 to rotate, which in turn drives the water box ring 31 and its toothed ring 32 to rotate, thereby achieving regular cleaning of the filter cartridge surface and preventing clogging; at the same time, the water supply rotating ring 33 can flexibly adjust the water supply position to ensure more accurate water supply to the water box ring 31, thereby improving the cleaning efficiency and applicability of the entire system.

[0020] In one embodiment, such as Figure 3 and 4 As shown, both sides of the scraping frame 23 are horizontally slidably fitted with rods 24, and compression springs 25 are horizontally fixedly connected to the scraping frame 23. Scraper blades 26 and brush plates 27 are respectively fixed to the rods 24 on both sides of the scraping frame 23. A scraping motor 22 is vertically fixed to the bottom surface of the screw housing 21, and the output end of the scraping motor 22 is fixed to the bottom surface of the scraping frame 23. The screw housing 21 is the main structure, and the scraping motor 22 is fixedly installed on its bottom surface to drive the scraping components. The horizontally slidable rods 24 on both sides of the scraping frame 23 are fixedly connected to the scraping frame 23 via compression springs 25, ensuring that the scraping frame 23 can move freely in the horizontal direction and maintain a certain pre-pressure state for effective contact and cleaning of the surface. The scraper blades 26 and brush plates 27 are respectively fixed to the rods 24 on both sides of the scraping frame 23, and they can scrape or brush the surface as needed to achieve the cleaning function. When the scraping motor 22 is working, it drives the scraping frame 23 and its scraper 26 and brush 27 to reciprocate on the surface. Through the action of the compression spring 25, it ensures that the scraper 26 and brush 27 can adhere to the surface and effectively act on it, achieving a highly efficient cleaning effect.

[0021] The working principle of this utility model: First, connect the water inlet tube 11 at the top of the filter tube 1 to the sewage inlet pipe. The sewage is guided into the mesh tube 14 of the filter tube 1. The sewage is filtered through the mesh tube 14 and the impurities are stored in the mesh tube 14. Then the filtered sewage is discharged from the drain ring (18) at the bottom of the outer wall of the filter tube 1. Then, after cleaning the impurities adhering to the inner wall of the screen cylinder 14, to ensure the efficiency of sewage flow, the scraping motor 22 in the scraping component 2 is started to drive the scraping frame 23 to rotate on the screw housing 21. Under the support of the deformation force of the compression spring 25, the rod 24 drives the scraper 26 and the brush plate 27 to stick tightly to the inner wall of the screen cylinder 14. The scraper 26 and the brush plate 27 on the rotating scraping frame 23 brush away the impurities on the inner wall of the screen cylinder 14 and make them fall down. At the same time, in order to further clean the screen cylinder 14, the water supply rotating ring 33 on the top surface of the water box ring 31 at the top of the flushing component 3 is connected to the water supply pipe. Water enters the spray bar 34 and sprays water flow toward the screen cylinder 14. The water flow backwashes the impurities on the screen cylinder 14. The cleaning motor 16 is started to drive the cleaning gear 17 to rotate, which drives the water box ring 31 to rotate and backwash to remove the impurities on the screen cylinder 14. Finally, when the cleaned impurities are discharged from the filter cylinder 1, rotate the screw shell 21 in the screw ring 13 to pull out the scraper 2 from the filter cylinder 1 and discharge the cleaned impurities.

[0022] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A filter with a self-cleaning function, characterized in that, The filter includes a filter cylinder (1), a scraper (2), and a flushing component (3). A water inlet cylinder (11) is vertically connected and fixed at the center of the top surface of the filter cylinder (1). Insert rings (12) are vertically fixed at both the upper and lower ends of the inner wall of the filter cylinder (1). A mesh cylinder (14) is vertically installed inside the filter cylinder (1). A screw ring (13) is vertically connected and fixed at the center of the bottom surface of the filter cylinder (1). A drain ring (18) is connected and fixed at the bottom of the outer circumference of the filter cylinder (1). The scraper (2) includes a screw shell (21) and a scraper frame (23). The screw shell (21) has a threaded... The assembly is in the screw ring (13), and the scraper (23) is vertically rotatably connected to the top surface of the screw shell (21), and the scraper (23) is inserted into the inside of the mesh cylinder (14). The scraper (26) and brush plate (27) are respectively provided on both sides of the scraper (23). The rinsing component (3) includes a water box ring (31), which is horizontally rotatably connected to the top surface of the filter cylinder (1). Multiple spray rods (34) are vertically connected and fixed on the bottom surface of the water box ring (31), and the multiple spray rods (34) are set on the outer wall of the mesh cylinder (14).

2. A filter with self-cleaning function according to claim 1, characterized in that: Both ends of the mesh cylinder (14) are vertically connected and fixed with insertion tubes (15), and the insertion tubes (15) are slidably inserted into the insertion rings (12) at both ends of the filter cylinder (1).

3. A filter with self-cleaning function according to claim 1, characterized in that: A cleaning motor (16) is vertically fixed at the top of the outer circumference of the filter cylinder (1), and a cleaning gear (17) is horizontally fixed at the output end of the cleaning motor (16).

4. A filter with self-cleaning function according to claim 3, characterized in that: A toothed ring (32) is vertically fixed on the top surface of the water box ring (31), and the toothed ring (32) meshes with the cleaning gear (17).

5. A filter with self-cleaning function according to claim 4, characterized in that: A water supply ring (33) is rotatably connected to the top surface of the water box ring (31).

6. A filter with self-cleaning function according to claim 1, characterized in that: Both sides of the scraping frame (23) are horizontally slidably inserted with rods (24), and a compression spring (25) is horizontally fixed between the rods (24) and the scraping frame (23). The scraper (26) and the brush plate (27) are respectively fixed on the rods (24) on both sides of the scraping frame (23).

7. A filter with self-cleaning function according to claim 6, characterized in that: The scraping motor (22) is vertically fixed on the bottom surface of the screw shell (21), and the output end of the scraping motor (22) is fixed on the bottom surface of the scraping frame (23).

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