A filter cartridge and method of manufacturing the same

Abstract

The application belongs to the technical field of filter cartridges, and particularly relates to a filter cartridge and a manufacturing method thereof, which comprises a filter cartridge body, end covers connected to two ends of the filter cartridge body, a cleaning ring made of metal sleeved on the surface of the filter cartridge body, an inner diameter of the cleaning ring being the same as an outer diameter of the filter cartridge body, an electric guide rail fixedly connected to one side of each end cover, the electric guide rail being located in the filter cartridge, and a magnetic block magnetically attracted to the cleaning ring and slidably connected to the electric guide rail. When dust accumulates on the surface of the filter cartridge body, the electric guide rail is started, so that the electric guide rail drives the magnetic block to move back and forth. At this time, the magnetic block drives the cleaning ring magnetically attracted thereto to move back and forth, and the cleaning ring scrapes off the dust on the surface of the filter cartridge body. Therefore, the dust on the surface of the filter cartridge body is automatically cleaned without manual cleaning by workers.

Description

Technical Field

[0001] This invention belongs to the field of filter cartridge technology, specifically a filter cartridge and its manufacturing method. Background Technology

[0002] A filter cartridge, also known as an air filter cartridge, is mainly used to capture dust in the air. It is generally used for air filtration in precision operating rooms. It uses tiny breathable structures formed on the surface of the filter material to block particulate matter in the gas.

[0003] Regarding existing related technologies, the inventor believes that the following defects often exist: when the filter cartridge is in use, a lot of dust will accumulate on its surface. At this time, the staff needs to clean the dust on the surface of the filter cartridge regularly. The cleaning method is usually to disassemble the filter cartridge and knock it. This cleaning method is time-consuming and laborious, making it too troublesome to remove dust from the surface of the filter cartridge. Therefore, the present invention provides a filter cartridge and its manufacturing method. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A filter cartridge according to this invention includes a filter cartridge body; end caps are connected to both ends of the filter cartridge body; a metal cleaning ring is fitted onto the surface of the filter cartridge body; the inner diameter of the cleaning ring is the same as the outer diameter of the filter cartridge body; an electric conductive rail is fixedly connected to one side of the end caps that is close to each other; the electric conductive rail is located inside the filter cartridge; a magnetic block that magnetically attracts the cleaning ring is slidably connected on the electric conductive rail; because a lot of dust accumulates on the surface of the filter cartridge body during use, it is necessary for staff to regularly clean the surface of the filter cartridge body. Dust removal typically involves disassembling the filter cartridge and tapping it, a time-consuming and laborious method that makes dust removal from the filter cartridge surface extremely troublesome. The aforementioned mechanism, however, allows for the activation of an electric guide rail when a significant amount of dust accumulates on the filter cartridge surface. This guide rail drives a magnetic block to move back and forth, which in turn moves a cleaning ring magnetically attached to it. The cleaning ring then scrapes away the dust from the filter cartridge surface, eliminating the need for manual dust removal and achieving automated dust removal.

[0006] Preferably, the cleaning ring has a hollow structure, and its inner wall is connected to annularly distributed scrapers. The scrapers are made of rubber and extend into the gaps on the surface of the filter cartridge body. A connecting pipe is connected inside the cleaning ring, and the other end of the connecting pipe is connected to a power source. Because there are gaps on the surface of the filter cartridge body, the ring cannot easily remove dust from the gaps. With the above structure, before the cleaning ring moves, an air source is connected to the outside of the connecting pipe, and then the air source is injected into the cleaning ring from the connecting pipe. The gas then enters the scrapers, causing them to expand. At this time, the scrapers can further conform to the gaps on the filter cartridge body, thereby improving the cleaning effect of the scrapers on the gaps. Then, the cleaning ring can be driven to move, so that the cleaning ring cleans the dust on the surface of the filter cartridge body, and the scrapers can also clean the dust in the gaps, thereby improving the cleaning effect on the dust on the filter cartridge body.

[0007] Preferably, the scraper blade has a shrinkage orifice on the side away from the cleaning ring. By connecting a water source to the connecting pipe, water can be filled into the scraper blade. At this time, the scraper blade will first expand and fit into the gap. Then, as water continues to enter the scraper blade, the shrinkage orifice on the scraper blade will open under water pressure. At this time, water is sprayed into the gap, thereby washing away the dust in the gap. At the same time, the scraper blade and the filter cartridge body will also be wetted by water, so that the scraper blade can better remove dust.

[0008] Preferably, both sides of the scraper are fixedly connected to elastic ropes, and the other end of the elastic ropes is provided with a ball. When no water is sprayed out from the constriction hole, the ball will fit into the constriction hole under the pull of the elastic ropes. By intermittently injecting water into the connecting pipe (the scraper will expand after water injection, and at this time, there is a certain gap between the ball and the gap after the scraper expands), water can be intermittently sprayed out from the constriction hole. When the water sprays onto the ball, the ball can impact the dust in the gap, causing the dust in the gap to be knocked away, thereby improving the cleaning effect of the dust in the gap. When no water is sprayed out from the constriction hole, the ball will reset under the pull of the elastic ropes. At this time, the ball can impact the scraper, thereby knocking away the dust accumulated on the scraper. At the same time, the water impact on the ball can also be diffused, thereby improving the rinsing effect of the gap.

[0009] Preferably, the sphere is rotatably connected to a rotating shaft, with both ends of the rotating shaft fixedly connected to an elastic rope. The surface of the sphere is uniformly provided with driving grooves, and the sphere is offset from the axis of the water spray point of the constriction hole. When water is sprayed out from the constriction hole, the sphere impacts the water once, and then the sphere will adhere to the impact point under the continuous impact of the water. After that, the water will spray onto the driving groove of the sphere, at which time the sphere can rotate. The rotating sphere can improve the cleaning effect on the gaps.

[0010] Preferably, the surface of the sphere is uniformly fixed with a cleaning cone; since dust in the gaps is easy to clump together, the cleaning effect of the clumped dust is easily reduced. At this time, when the sphere rotates, the cleaning cone can be used to impact the clumped dust, thereby breaking the clumped dust apart. The broken dust can then be easily washed away by water, thereby improving the cleaning effect of the clumped dust.

[0011] Preferably, a receiving ring is fixedly connected to the bottom end of the cleaning ring, the receiving ring has an opening at its top, and a ring-shaped guide plate is fixedly connected to the inner wall of the receiving ring. The guide plate extends into the gap on the surface of the filter cartridge body, and a guide groove communicating with the inside of the receiving ring is opened at the top of the guide plate. An automatic drainage mechanism is provided inside the receiving ring. In actual use, the filter cartridge body can be tilted, with the cleaning ring above the receiving ring. This allows water to flow normally into the receiving ring. When the cleaning ring moves, water is sprayed onto the filter cartridge body, and water and dust enter the receiving ring. Water and dust in the gaps enter the receiving ring through the guide groove on the guide plate. The above structure automatically collects dust and water. When the receiving ring is full of water mixed with dust, it is discharged from the automatic drainage mechanism.

[0012] Preferably, the automatic drainage mechanism includes a water outlet pipe, one end of which is connected to the outer wall of the receiving ring. A slip ring is slidably connected to the inner wall of the receiving ring. The bottom end of the guide groove is higher than the slip ring. A set of first springs is fixedly connected between the bottom surface of the slip ring and the bottom surface of the inner wall of the receiving ring. When water mixed with dust enters the receiving ring, the water will be located inside the slip ring. As more and more water accumulates on the slip ring, the slip ring will move under the weight of the water. When the slip ring moves to the connecting pipe outlet, the water inside the slip ring can be discharged from the water outlet pipe, thereby achieving the function of automatically draining the water inside the receiving ring.

[0013] Preferably, a connecting plate is fixedly connected to the top surface of the slip ring near the outlet pipe, and a second spring is fixedly connected to the side of the connecting plate near the outlet pipe. A unclogging block is fixedly connected to the other end of the second spring, and the side of the unclogging block away from the second spring is arc-shaped. Because the water contains a large amount of dust, the outlet pipe is easily blocked when the water is discharged. With the above mechanism, when the outlet pipe is blocked, water will continuously accumulate on the slip ring. The slip ring will continue to move downward until the unclogging block moves to the position corresponding to the outlet pipe. Then, the second spring will push the unclogging block, which will impact the outlet pipe port, thereby breaking the blockage and unblocking the outlet pipe. Then, the water will be discharged from the outlet pipe. At this time, the slip ring will move upward, and the arc-shaped surface of the unclogging block will contact the inner wall of the outlet pipe, causing the unclogging block to be pushed back to its original position.

[0014] A method for manufacturing a filter cartridge, the method comprising the following steps;

[0015] S1: High-pressure micro-water jets are sprayed onto a multi-layer fiber web, causing the fibers to entangle together and form a spunlace nonwoven fabric, which is then used as a filter material.

[0016] S2: The spunlace nonwoven fabric is pressed into a cylindrical shape using a mold, and then cured at high temperature to form the filter cartridge body. After the filter cartridge body is formed, the end caps are installed at both ends to complete the manufacturing of the filter cartridge body.

[0017] S3; After the filter cartridge body is manufactured, a random inspection is carried out on the filter cartridge body to ensure the quality of the filter cartridge body after production.

[0018] Spunlace nonwoven fabric contains no adhesives, resulting in better air permeability, acid and alkali resistance, temperature resistance, and service life. It is also more environmentally friendly. Filter cartridges made of spunlace nonwoven fabric have better filtration performance, higher temperature resistance, and a longer service life.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. When a large amount of dust accumulates on the surface of the filter cartridge body, the present invention activates the electric guide rail, which drives the magnetic block to move back and forth. At this time, the magnetic block will drive the cleaning ring that is magnetically attracted to it to move back and forth. The cleaning ring will scrape off the dust on the surface of the filter cartridge body, eliminating the need for manual cleaning of the dust on the surface of the filter cartridge body, thus achieving the effect of automatically cleaning the dust on the surface of the filter cartridge body.

[0021] 2. This invention connects an external air source to the connecting pipe and injects the air source into the cleaning ring. The gas then enters the scraper, causing it to expand. At this point, the scraper can further conform to the gaps on the filter cartridge body, thereby improving the cleaning effect of the scraper on the gaps. Then, the cleaning ring can be driven to move, so that the cleaning ring cleans the dust on the surface of the filter cartridge body. At the same time, the scraper can also clean the dust in the gaps, thereby improving the dust cleaning effect on the filter cartridge body. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a partial structural cross-sectional view of the cleaning ring in this invention;

[0025] Figure 3 yes Figure 2 Enlarged view of point A;

[0026] Figure 4 This is a cross-sectional view of the storage ring in this invention;

[0027] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0028] Figure 6 This is a flowchart of the manufacturing method in this invention.

[0029] In the diagram: 1. Filter cartridge body; 2. End cap; 3. Electrical guide rail; 4. Magnetic block; 5. Cleaning ring; 6. Scraper; 7. Elastic rope; 8. Shrinkage hole; 9. Connecting pipe; 10. Rotating shaft; 11. Ball; 12. Drive groove; 13. Unblocking cone; 14. Storage ring; 15. Guide plate; 16. Guide groove; 17. Slip ring; 18. Water outlet pipe; 19. First spring; 20. Connecting plate; 21. Second spring; 22. Unblocking block. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown in the embodiment of the present invention, a filter cartridge includes a filter cartridge body 1; end caps 2 are connected to both ends of the filter cartridge body 1, and a metal cleaning ring 5 is fitted on the surface of the filter cartridge body 1. The inner diameter of the cleaning ring 5 is the same as the outer diameter of the filter cartridge body 1. An electric guide rail 3 is fixedly connected to one side of the end caps 2 that is close to each other. The electric guide rail 3 is located inside the filter cartridge, and a magnetic block 4 that magnetically attracts the cleaning ring 5 is slidably connected to the electric guide rail 3. Since a lot of dust will accumulate on the surface of the filter cartridge body 1 during use, it is necessary for the staff to regularly clean the dust on the surface of the filter cartridge body 1. The usual method of cleaning is to disassemble the filter cartridge and knock it. This cleaning method is time-consuming and laborious, making it too troublesome to remove dust from the surface of the filter cartridge. With the above-mentioned mechanism, when there is a lot of dust on the surface of the filter cartridge body 1, the electric guide rail 3 is activated, which drives the magnetic block 4 to move back and forth. At this time, the magnetic block 4 will drive the cleaning ring 5 that is magnetically attracted to it to move back and forth. Then the cleaning ring 5 will scrape off the dust on the surface of the filter cartridge body 1. There is no need for the staff to manually remove the dust from the surface of the filter cartridge, thus achieving the effect of automatically removing the dust from the surface of the filter cartridge body 1.

[0033] The cleaning ring 5 has a hollow structure inside. The inner wall of the cleaning ring 5 is connected to annularly distributed scraper blades 6, which are made of rubber and extend into the gaps on the surface of the filter cartridge body 1. A connecting pipe 9 is connected inside the cleaning ring 5, and the other end of the connecting pipe 9 is connected to a power source. Because there are gaps on the surface of the filter cartridge body 1, the ring cannot effectively remove dust from these gaps. With the above structure, before the cleaning ring 5 moves, an air source is connected to the connecting pipe 9, and the air is injected into the cleaning ring 5 through the connecting pipe 9. The gas then enters the scraper blades 6, causing them to expand. At this point, the scraper blades 6 can further adhere to the gaps on the filter cartridge body 1, thereby improving the cleaning effect of the scraper blades 6 on the gaps. This allows the cleaning ring 5 to move, cleaning the dust on the surface of the filter cartridge body 1. Simultaneously, the scraper blades 6 can also clean the dust in the gaps, thus improving the overall cleaning effect on the filter cartridge body 1.

[0034] The scraper 6 has a shrinkage hole 8 on the side away from the cleaning ring 5. By connecting a water source to the connecting pipe 9, water can be filled into the scraper 6. At this time, the scraper 6 will first expand and fit into the gap. Then, as water continues to enter the scraper 6, the shrinkage hole 8 on the scraper 6 will open under water pressure. At this time, water is sprayed into the gap, thereby washing away the dust in the gap. At the same time, the scraper 6 and the filter cartridge body 1 will also be wetted by water, so that the scraper 6 can better remove dust.

[0035] Both sides of the scraper 6 are fixedly connected with elastic ropes 7, and the other end of the elastic ropes 7 is provided with a ball 11. When no water is sprayed out from the constriction hole 8, the ball 11 will be pulled by the elastic ropes 7 to fit into the constriction hole 8. By intermittently injecting water into the connecting pipe 9 (after water is injected, the scraper 6 will expand, and at this time, after the scraper 6 expands, there is a certain gap between the ball 11 and the gap), water can be intermittently sprayed out from the constriction hole 8. When the water sprays onto the ball 11, the ball 11 can impact the dust in the gap, causing the dust in the gap to be knocked away, thereby improving the cleaning effect of the dust in the gap. When no water is sprayed out from the constriction hole 8, the ball 11 will be reset under the pull of the elastic ropes 7. At this time, the ball 11 can impact the scraper 6, thereby knocking away the dust accumulated on the scraper 6. At the same time, the water impact on the ball 11 can also be diffused, thereby improving the rinsing effect of the gap.

[0036] The sphere 11 is rotatably connected to a rotating shaft 10. The two ends of the rotating shaft 10 are fixedly connected to the elastic rope 7. The surface of the sphere 11 is uniformly provided with driving grooves 12, and the sphere 11 is offset from the axis of the water spray point of the constriction hole 8. When water is sprayed out from the constriction hole 8, the sphere 11 is impacted by the water. After the water continues to impact, the sphere 11 will stick to the impact point. Then the water will spray onto the driving groove 12 of the sphere 11. At this time, the sphere 11 can rotate. The rotating sphere 11 can improve the cleaning effect on the gaps.

[0037] The surface of the sphere 11 is uniformly and fixedly connected with a cleaning cone 13. Since dust in the gaps is easy to clump together, the cleaning effect of the clumped dust is easily reduced. At this time, when the sphere 11 rotates, the cleaning cone 13 can impact the clumped dust, thereby breaking the clumped dust apart. The broken dust can then be easily washed away by water, thereby improving the cleaning effect of the clumped dust.

[0038] The bottom end of the cleaning ring 5 is fixedly connected to a storage ring 14. The top end of the storage ring 14 is open, and the inner side wall of the storage ring 14 is fixedly connected to a ring-shaped guide plate 15. The guide plate 15 extends into the gap on the surface of the filter cartridge body 1. The top end of the guide plate 15 has a guide groove 16 that communicates with the inside of the storage ring 14. An automatic drainage mechanism is provided inside the storage ring 14. In actual use, the filter cartridge body 1 can be tilted. When tilted, the cleaning ring 5 is above the storage ring 14, allowing water to flow normally into the storage ring 14. When the cleaning ring 5 moves, water will spray onto the filter cartridge body 1. At this time, water and dust will enter the storage ring 14. Water and dust in the gap will enter the storage ring 14 through the guide groove 16 on the guide plate 15. The above structure automatically collects dust and water. When the storage ring 14 is full of water mixed with dust, it will be discharged from the automatic drainage mechanism.

[0039] The automatic drainage mechanism includes a water outlet pipe 18, one end of which is connected to the outer wall of the receiving ring 14. A slip ring 17 is slidably connected to the inner wall of the receiving ring 14. The bottom end of the guide groove 16 is higher than the slip ring 17. A set of first springs 19 is fixedly connected between the bottom surface of the slip ring 17 and the bottom surface of the inner wall of the receiving ring 14. When water mixed with dust enters the receiving ring 14, the water will be located in the slip ring 17. As more and more water accumulates on the slip ring 17, the slip ring 17 will move under the weight of the water. When the slip ring 17 moves to the connecting pipe 9, the water in the slip ring 17 can be discharged from the water outlet pipe 18, thereby achieving the function of automatically draining the water in the receiving ring 14.

[0040] Example 2:

[0041] like Figures 5 to 6 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a connecting plate 20 is fixedly connected to the top surface of the slip ring 17 near the water outlet pipe 18, a second spring 21 is fixedly connected to the side of the connecting plate 20 near the water outlet pipe 18, and a unclogging block 22 is fixedly connected to the other end of the second spring 21. The side of the unclogging block 22 away from the second spring 21 is arc-shaped. Because a large amount of dust is mixed in the water, when the water is discharged from the water outlet pipe 18, it is easy to cause blockage of the water outlet pipe 18. The above-mentioned mechanism can prevent blockage of the water outlet pipe 18. As water accumulates on the slip ring 17, it continues to move downwards until the unblocking block 22 aligns with the outlet pipe 18. At this point, the second spring 21 pushes the unblocking block 22, causing it to impact the outlet pipe 18, thus clearing the blockage and allowing water to drain. The slip ring 17 then moves upwards, and the curved surface of the unblocking block 22 contacts the inner wall of the outlet pipe 18, causing it to reset.

[0042] A method for manufacturing a filter cartridge, the method comprising the following steps;

[0043] S1: High-pressure micro-water jets are sprayed onto a multi-layer fiber web, causing the fibers to entangle together and form a spunlace nonwoven fabric, which is then used as a filter material.

[0044] S2: The spunlace nonwoven fabric is pressed into a cylindrical shape using a mold, and then cured at high temperature to form the filter cartridge body 1. After the filter cartridge body 1 is formed, the upper end caps 2 are installed at both ends to complete the manufacturing of the filter cartridge body 1.

[0045] S3; After the filter cartridge body 1 is manufactured, the filter cartridge body 1 is sampled for inspection to ensure the quality of the filter cartridge body 1 after production.

[0046] Spunlace nonwoven fabric contains no adhesives, resulting in better air permeability, acid and alkali resistance, temperature resistance, and service life. It is also more environmentally friendly. Filter cartridges made of spunlace nonwoven fabric have better filtration performance, higher temperature resistance, and a longer service life.

[0047] Working Principle: During use, the filter cartridge body 1 accumulates a lot of dust. This requires regular cleaning by personnel, typically involving disassembling the filter cartridge and tapping it. This method is time-consuming and laborious, making dust removal from the filter cartridge surface cumbersome. The aforementioned mechanism allows for automated dust removal when a large amount of dust accumulates on the filter cartridge body 1. This is achieved by activating the electric guide rail 3, which drives the magnetic block 4 to move back and forth. The magnetic block 4 then moves the magnetically attracted cleaning ring 5 back and forth, scraping away the dust from the filter cartridge body 1. This eliminates the need for manual dust removal, achieving automated dust removal from the filter cartridge body 1. The cleaning effect is as follows: Due to the gaps on the surface of the filter cartridge body 1, the circular ring cannot effectively remove dust from the gaps. Through the above structure, before the cleaning ring 5 moves, an air source is connected to the connecting pipe 9, and the air is injected into the cleaning ring 5 through the connecting pipe 9. The gas then enters the scraper 6, causing it to expand. At this point, the scraper 6 can further adhere to the gaps on the filter cartridge body 1, thereby improving the cleaning effect of the scraper 6 on the gaps. Then, the cleaning ring 5 can be driven to move, allowing it to clean the dust on the surface of the filter cartridge body 1. Simultaneously, the scraper 6 can also clean the dust in the gaps, thus improving the cleaning effect on the filter cartridge body 1. This is achieved by connecting an external air source to the connecting pipe 9. Water is introduced, allowing water to fill the scraper blade 6. The scraper blade 6 expands and fits into the gap. As water continues to enter the scraper blade 6, the constriction orifice 8 on the scraper blade 6 opens under water pressure. Water sprays onto the gap, washing away dust. Simultaneously, the scraper blade 6 and the filter cartridge body 1 are wetted, allowing the scraper blade 6 to better remove dust. When no water sprays from the constriction orifice 8, the sphere 11, pulled by the elastic rope 7, fits into the constriction orifice 8. Intermittent water injection into the connecting pipe 9 (after water injection, the scraper blade 6 expands, creating a gap between the sphere 11 and the gap) allows water to intermittently spray from the constriction orifice 8. When water sprays onto the sphere 11, it... The ball 11 impacts the dust in the crevices, causing it to be knocked away, thus improving the cleaning effect. When water does not spray out from the constriction hole 8, the ball 11 will reset under the pull of the elastic rope 7. At this time, the ball 11 can impact the scraper 6, thereby knocking away the dust accumulated on the scraper 6. At the same time, the water impact on the ball 11 can also be diffused, thereby improving the rinsing effect on the crevices. When water sprays out from the constriction hole 8, the ball 11 impacts once under the impact of the water. The ball 11 will then adhere to the impact point under the continuous impact of the water. After that, the water will spray onto the drive groove 12 of the ball 11. At this time, the ball 11 can rotate. The rotating ball 11 can improve the cleaning effect on the crevices.Because dust easily clumps together in the crevices, the cleaning effect of clumped dust becomes less effective. In this case, the rotating sphere 11, combined with the impact cone 13, can break up the clumped dust by impacting it. The broken dust can then be easily washed away by water, improving the cleaning effect. In actual use, the filter cartridge body 1 can be tilted, with the cleaning ring 5 positioned above the receiving ring 14. This allows water to flow normally into the receiving ring 14. When the cleaning ring 5 moves, water is sprayed onto the filter cartridge body 1, and the water and dust then enter the receiving ring. Inside ring 14, water and dust from the gaps enter the collection ring 14 via the guide groove 16 on the guide plate 15. This structure automatically collects the dust and water. When the collection ring 14 is full of water mixed with dust, it is discharged through the automatic drainage mechanism. After the water mixed with dust enters the collection ring 14, it resides in the slip ring 17. As more and more water accumulates on the slip ring 17, it moves under the weight of the water. When the slip ring 17 reaches the connecting pipe 9, the water inside the slip ring 17 can be discharged from the outlet pipe 18, thus achieving the automatic drainage of water from the collection ring 14.

[0048] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0049] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter cartridge, characterized in that: Includes a filter cartridge body (1); the filter cartridge body (1) is connected to end caps (2) at both ends, and a metal cleaning ring (5) is fitted on the surface of the filter cartridge body (1). The inner diameter of the cleaning ring (5) is the same as the outer diameter of the filter cartridge body (1). An electric rail (3) is fixedly connected to one side of the end caps (2) that are close to each other. The electric rail (3) is located inside the filter cartridge, and a magnetic block (4) that magnetically attracts the cleaning ring (5) is slidably connected on the electric rail (3). The cleaning ring (5) has a hollow structure inside. The inner sidewall of the cleaning ring (5) is connected to a ring-shaped and evenly distributed scraper (6). The scraper (6) is made of rubber and extends into the gap on the surface of the filter cartridge body (1). The cleaning ring (5) is connected to a connecting pipe (9), and the other end of the connecting pipe (9) is connected to a power source. The scraper (6) has a shrinkage hole (8) on the side away from the cleaning ring (5); Both sides of the scraper (6) are fixedly connected with elastic ropes (7), and the other end of the elastic ropes (7) is provided with a ball (11). The sphere (11) is rotatably connected to a rotating shaft (10), and the two ends of the rotating shaft (10) are fixedly connected to an elastic rope (7). The surface of the sphere (11) is uniformly provided with driving grooves (12), and the sphere (11) and the spray point of the constriction hole (8) are offset from each other.

2. A filter cartridge according to claim 1, characterized in that: The surface of the sphere (11) is uniformly fixed with a dredging cone (13).

3. A filter cartridge according to claim 2, characterized in that: The bottom end of the cleaning ring (5) is fixedly connected to a storage ring (14). The top end of the storage ring (14) is open. The inner side wall of the storage ring (14) is fixedly connected to a ring-shaped guide plate (15). The guide plate (15) extends into the gap on the surface of the filter cartridge body (1). The top end of the guide plate (15) is provided with a guide groove (16) that communicates with the inside of the storage ring (14). An automatic drainage mechanism is provided inside the storage ring (14).

4. A filter cartridge according to claim 3, characterized in that: The automatic drainage mechanism includes a water outlet pipe (18), one end of which is connected to the outer wall of the storage ring (14). The inner wall of the storage ring (14) is slidably connected with a slip ring (17). The bottom end of the guide groove (16) is higher than the slip ring (17). A set of first springs (19) is fixedly connected between the bottom surface of the slip ring (17) and the bottom surface of the inner wall of the storage ring (14).

5. A filter cartridge according to claim 4, characterized in that: The slip ring (17) is fixedly connected to a connecting plate (20) near the top surface of the outlet pipe (18). A second spring (21) is fixedly connected to the side of the connecting plate (20) near the outlet pipe (18). A dredging block (22) is fixedly connected to the other end of the second spring (21). The side of the dredging block (22) away from the second spring (21) is arc-shaped.

6. A method for manufacturing a filter cartridge, the method being used to manufacture a filter cartridge according to any one of claims 1-5, characterized in that: The manufacturing method includes the following steps; S1: High-pressure micro-water jets are sprayed onto a multi-layer fiber web, causing the fibers to entangle together and form a spunlace nonwoven fabric, which is then used as a filter material. S2: The spunlace nonwoven fabric is pressed into a cylindrical shape using a mold, and then cured at high temperature to form a filter cartridge body (1). After the filter cartridge body (1) is formed, the upper end caps (2) are installed at both ends to complete the manufacturing of the filter cartridge body (1). S3; After the filter cartridge body (1) is manufactured, the filter cartridge body (1) is sampled and inspected to ensure the quality of the filter cartridge body (1) after it is produced.

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