Filter element of filter

Abstract

The utility model discloses a filter element of a filter, which relates to the technical field of filtering equipment and is characterized by comprising a hollow pipe, a backflow hole is arranged on the side wall of the hollow pipe, a core body is arranged inside the hollow pipe and comprises an upper sealing cover and a lower sealing cover, an outlet is arranged on the upper sealing cover, an inlet is arranged on the lower sealing cover, and the backflow hole is communicated with the inlet. A hollow fiber ultrafiltration membrane is arranged between the upper sealing cover and the lower sealing cover, a mounting shell is arranged on the hollow pipe, an embedded block used for being embedded into the mounting shell is arranged on the lower sealing cover, a plurality of buckles are arranged on the side wall of the embedded block, a plurality of clamping grooves used for the buckles to be buckled in are formed in the side wall of the mounting shell, and the buckles can move in the radial direction of the embedded block. A limiting assembly used for fixing the buckle is arranged on the embedded block. According to the filter element of the filter, the element body is convenient to disassemble and assemble, so that the element body is convenient to replace, the filter element of the whole filter does not need to be replaced, and the service life of the filter element of the filter is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically to a filter element. Background Technology

[0002] Cross-flow filtration uses a circulating pump to move the material to be filtered at high speed through filter membrane channels of different pore sizes. Under pressure, the filtrate passes through tangentially, and the high-speed movement of the filtrate creates turbulence, which continuously washes the inner surface of the membrane rod, carrying away a small amount of solids adhering to the membrane, thereby preventing membrane blockage and maintaining normal filtration.

[0003] Existing cross-flow filter cartridges typically consist of a hollow tube, an upper sealing section, a lower sealing section, and a hollow fiber ultrafiltration membrane. The upper and lower sealing sections fix the two ends of the hollow fiber ultrafiltration membrane to the two ends of the hollow tube. An inlet is provided on the lower sealing section, and a reflux hole is provided on the side wall of the hollow tube at the end where the upper sealing section is located. The upper sealing section is penetrated at the end of the hollow fiber ultrafiltration membrane to form an outlet. The principle is as follows: the feed solution to be filtered enters the hollow tube through the inlet. During the axial transport along the hollow tube, it permeates radially from the outside to the inside of the hollow fiber ultrafiltration membrane under the action of pressure difference, becoming the permeate. The permeate flows within the hollow fiber ultrafiltration membrane to the end where the upper sealing section is located and finally exits from the outlet. The retained substances collect on the outside of the hollow fiber ultrafiltration membrane and are transported with the feed solution to the end where the upper sealing section is located, where they are discharged from the reflux hole.

[0004] Currently, in existing cross-flow filter cartridges, the hollow fiber ultrafiltration membrane is fixed inside the hollow tube and cannot be disassembled. However, the hollow fiber ultrafiltration membrane is prone to losing its effectiveness after long-term use. Therefore, when the hollow fiber ultrafiltration membrane fails, the entire filter cartridge will also fail, resulting in a short service life for the filter cartridge. Utility Model Content

[0005] The purpose of this utility model is to provide a filter element that solves the above-mentioned problems. The element is easy to disassemble and assemble, making it easy to replace without replacing the entire filter element, thereby greatly extending the service life of the filter element.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a filter element comprising a hollow tube, wherein a reflux hole is provided on the side wall of the hollow tube, a core body is disposed inside the hollow tube, the core body comprises an upper cover and a lower cover, wherein an outlet is provided on the upper cover and an inlet is provided on the lower cover, a hollow fiber ultrafiltration membrane is disposed between the upper cover and the lower cover, an mounting shell is disposed on the hollow tube, an insert for embedding inside the mounting shell is disposed on the lower cover, a plurality of buckles are provided on the side wall of the insert, a plurality of slots for buckle engagement are provided on the side wall of the mounting shell, the buckles are movable radially along the insert, and a limiting component for fixing the buckles is disposed on the insert.

[0007] As a further feature of this invention, the buckle includes a first claw and a second claw, with an elastic space between the first claw and the second claw. Both the first claw and the second claw include a connecting strip and a locking block, and the locking block has a triangular cross-section.

[0008] As a further feature of this invention, a groove is radially formed on the side wall of the insert, and a slider is slidably connected inside the groove on the buckle. A spring is connected between the slider and the inner side wall of the groove, and the spring is used to keep the buckle extending out of the groove in its natural state.

[0009] As a further feature of this invention, the limiting component includes a pin seat fixed on the insert, a latch slidably connected inside the pin seat, and a limiting groove for the latch to engage on the slider.

[0010] As a further feature of this invention, a slide rail is provided on the pin seat along its length, and a paddle is provided on the latch that is slidably connected within the slide rail.

[0011] As a further feature of this invention, the paddle is provided with several anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When the core needs to be replaced, the buckle and the slot can be released first, and then the buckle can be pushed to re-close, so that the insert can be pulled out from the inside of the mounting shell, thereby allowing the core to be pulled out from the hollow tube, thus achieving the disassembly of the core. Since the disassembly and assembly of the core is relatively convenient, it is easy to replace without replacing the entire filter element, thereby greatly extending the service life of the filter element. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a schematic diagram of the core structure of this utility model;

[0018] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0019] Reference numerals: 1. Hollow tube; 2. Reflux hole; 3. Upper cover; 4. Lower cover; 5. Outlet; 6. Inlet; 7. Hollow fiber ultrafiltration membrane; 8. Mounting shell; 9. Insert; 10. Snap-fit; 11. Slot; 12. First claw; 13. Second claw; 14. Connecting strip; 15. Block; 16. Slide groove; 17. Slider; 18. Spring; 19. Pin seat; 20. Tongue; 21. Limiting groove; 22. Slide; 23. Paddle; 24. Anti-slip groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4As shown, a filter element includes a hollow tube 1 with a reflux hole 2 on its side wall. A core body is disposed inside the hollow tube 1, comprising an upper cover 3 and a lower cover 4. An outlet 5 is provided on the upper cover 3, and an inlet 6 is provided on the lower cover 4. A hollow fiber ultrafiltration membrane 7 is disposed between the upper cover 3 and the lower cover 4. An mounting shell 8 is provided on the hollow tube 1, and a fitting for embedding is provided on the lower cover 4. Inside the housing 8 is an insert 9, which is disc-shaped. Several latches 10 are provided on the sidewall of the insert 9, and several slots 11 are provided on the sidewall of the housing 8 for the latches 10 to engage. The latches 10 can move radially along the insert 9, and a limiting component is provided on the insert 9 to fix the latches 10. Therefore, during filter element assembly, the latch block 15 can be pushed radially towards the center of the insert 9, causing the latches 10 to close, and then the limiting component... The mounting component is fixed with buckle 10, keeping it in a retracted state. Then, the core can be inserted into the hollow tube 1, causing the insert 9 to embed into the mounting shell 8. Next, push the buckle 15 radially away from the center of the insert 9, causing buckle 10 to extend until it engages with the slot 11. The interlocking of the slot 11 and buckle 10 securely installs the insert 9 inside the mounting shell 8, thus connecting the hollow tube 1 and the core and assembling the filter element. When the core needs to be replaced, the buckle 10 and slot 11 can be released first, and then buckle 10 can be pushed to retract, allowing the insert 9 to be pulled out from the mounting shell 8, thereby removing the core from the hollow tube 1 and disassembling the core. Because the core is easy to disassemble and assemble, it is easy to replace without replacing the entire filter element, thus greatly extending the service life of the filter element.

[0022] Please see Figure 2-5 As shown, the buckle 10 includes a first claw 12 and a second claw 13, forming an elastic space between the first claw 12 and the second claw 13. Both the first claw 12 and the second claw 13 include a connecting strip 14 and a locking block 15. The locking block 15 has a triangular cross-section, and its inclined surface faces away from the insert block 9. When the buckle 10 is inserted into the slot 11, the first claw 12 and the second claw 13 are pressed against the side wall of the slot 11 and will move closer together, facilitating the insertion of the buckle 10. When the buckle 10 is fully inserted... After the slot 11 is closed, the first claw 12 and the second claw 13 are freed from the pressure restraint of the side wall of the slot 11, automatically extend and return to their original shape, so that the locking block 15 abuts against the outer side wall of the mounting shell 8 to achieve locking. When it is necessary to release the buckle 10 from the slot 11, the first claw 12 and the second claw 13 can be pressed to make the first claw 12 and the second claw 13 move closer to each other, so that they can be released from the slot 11. This setting makes the locking and unlocking of the buckle 10 from the slot 11 more convenient, saving time and effort.

[0023] Please see Figure 2, Figure 3 As shown, a groove 16 is radially formed on the side wall of the insert 9, and a slider 17 is slidably connected to the inside of the groove 16 on the buckle 10. A spring 18 is connected between the slider 17 and the inner side wall of the groove 16. The spring 18 is used to keep the buckle 10 extending out of the groove 16 in its natural state. When the buckle 10 is snapped into the slot 11, the buckle block 15 can be pushed to move radially toward the center of the insert 9, so that the buckle 10 retracts. The slider 17 then squeezes the spring 18, causing the spring 18 to compress and deform. After the buckle 10 is fully snapped into the slot 11, the spring 18 can extend, thus giving the buckle 10 a thrust, which improves the fastening firmness of the buckle 10 and the slot 11.

[0024] Please see Figure 2 , Figure 3 As shown, the limiting component includes a pin seat 19 fixed on the insert 9, a latch 20 slidably connected within the pin seat 19, and a limiting groove 21 for the latch 20 to engage on the slider 17. When the buckle 10 is closed, the latch 20 can be pushed out of the pin seat 19 and engaged in the limiting groove 21. By limiting the latch 20 through the limiting groove 21, the buckle 10 is fixed, keeping it in the closed state and preventing it from obstructing the insertion of the insert 9 into the mounting housing 8. The pin seat 19 has a slide 22 along its length, and the latch 20 has a paddle 23 that is slidably connected to the slide 22. By moving the paddle 23, the latch 20 can be extended or retracted into the pin seat 19. The paddle 23 makes it easier and simpler to slide the latch 20. In addition, the paddle 23 has several anti-slip grooves 24, which increases the friction coefficient of the paddle 23 surface, making it less likely to slip when moving the paddle 23, and making the operation easier and less strenuous.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filter element comprising a hollow tube (1), wherein a reflux hole (2) is provided on the side wall of the hollow tube (1), a core body is disposed inside the hollow tube (1), the core body comprising an upper cap (3) and a lower cap (4), wherein an outlet (5) is provided on the upper cap (3), an inlet (6) is provided on the lower cap (4), and a hollow fiber ultrafiltration membrane (7) is disposed between the upper cap (3) and the lower cap (4), characterized in that: The hollow tube (1) is provided with an installation shell (8), and the lower cover (4) is provided with an insert (9) for embedding inside the installation shell (8). The side wall of the insert (9) is provided with several buckles (10), and the side wall of the installation shell (8) is provided with several slots (11) for the buckles (10) to be engaged. The buckles (10) can move radially along the insert (9), and the insert (9) is provided with a limiting component for fixing the buckles (10).

2. The filter element of a filter according to claim 1, characterized in that: The buckle (10) includes a first claw (12) and a second claw (13), with an elastic space between the first claw (12) and the second claw (13). Both the first claw (12) and the second claw (13) include a connecting strip (14) and a locking block (15), and the cross-section of the locking block (15) is triangular.

3. The filter element of a filter according to claim 1, characterized in that: The insert (9) has a radial groove (16) on its side wall. The buckle (10) has a slider (17) that is slidably connected inside the groove (16). A spring (18) is connected between the slider (17) and the inner side wall of the groove (16). The spring (18) is used to keep the buckle (10) extending out of the groove (16) in its natural state.

4. The filter element of a filter according to claim 3, characterized in that: The limiting component includes a pin seat (19) fixed on the insert (9), a latch (20) is slidably connected in the pin seat (19), and a limiting groove (21) is provided on the slider (17) for the latch (20) to be engaged.

5. The filter element of a filter according to claim 4, characterized in that: The pin seat (19) has a slide (22) along its length, and the latch (20) has a paddle (23) that is slidably connected in the slide (22).

6. The filter element of a filter according to claim 5, characterized in that: The paddle (23) has several anti-slip grooves (24).

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