A precision filter of a multi-layer structure

Abstract

This utility model discloses a multi-layer precision filter, relating to the field of filter technology. It includes: a filter barrel, an inlet end, a drain end, a positioning block, a positioning plate, and a precision filter bag; a fitting groove and an extension plate; a first magnet installed on the inner wall of the fitting groove; a second magnet installed on the top of the extension plate; a sealing tube installed on the inner wall of the filter groove; a support plate installed on the inner wall of the filter barrel; a drainage groove on the inner wall of the support plate; and an inclined plate installed on the top of the support plate. This utility model features a disassembly mechanism. First, the extension plate is attracted and installed below the positioning plate by the first and second magnets, allowing the precision filter bag to be installed. The length of the sealing tube is determined by the gap between the positioning plate and the extension plate. Then, the positioning plate is moved into the filter barrel. The precision filter bag is then supported by the support plate below, and the filtered water is discharged through the drainage groove, facilitating the installation and disassembly of the precision filter bag.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a multi-layer precision filter. Background Technology

[0002] Multi-layer precision filters are widely used liquid filtration devices. They can effectively remove particles of different sizes from liquids. The liquid enters from the side inlet of the filter container and flows into the filter bag from above, supported by the positioning block. Due to the impact of the liquid and the uniform pressure, the filter bag expands, allowing the liquid material to be evenly distributed on the entire inner surface of the filter bag. The liquid is then discharged from the outlet at the bottom of the filter. The filtered particulate impurities are trapped inside the filter bag, completing the filtration process.

[0003] Patent document CN212818437U discloses a bag filter, which "involves the field of liquid impurity filtration technology. It includes a cylindrical body covered with a top cover, an inlet and an outlet, and fixed support legs. A filter bag is placed inside the cylindrical body, and a support mesh basket is provided outside the filter bag. A pressure gauge and an exhaust valve are provided on the top cover." This invention features a support mesh basket outside the filter bag, which effectively protects the filter bag and prevents damage. Secondly, the addition of a pressure gauge allows for monitoring the pressure inside the cylindrical body, thereby monitoring the filter bag's condition and facilitating timely replacement and cleaning. Thirdly, the addition of an exhaust valve serves two purposes: firstly, it releases gas from the cylindrical body when the internal pressure is too high, reducing pressure and protecting the filter bag; secondly, it allows compressed gas to be introduced when filtering high-concentration liquids, improving filtration efficiency.

[0004] However, one of the bag filters in the aforementioned published documents mainly focuses on improving filtration efficiency, which makes it inconvenient to disassemble the precision filter bag.

[0005] In view of this, it is necessary to develop a disassembly mechanism to facilitate the disassembly of precision filter bags. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-layer precision filter to solve the technical problem mentioned in the background art of making the multi-layer precision filter easy to disassemble.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer precision filter, comprising: a filter barrel, an inlet end, an outlet end, a positioning block, a positioning plate, and a precision filter bag, wherein the bottom of the positioning plate is provided with a disassembly mechanism, which is used to facilitate the disassembly of the precision filter bag;

[0008] The disassembly mechanism includes a fitting groove and an extension plate. The bottom of the positioning plate is provided with two sets of fitting grooves. The inner wall of the fitting groove is equipped with a first magnet. The extension plate is located on the outer wall of the precision filter bag, and there are two sets of extension plates. The top of the extension plate is equipped with a second magnet. The inner wall of the filter tank is equipped with a sealing tube. The inner wall of the filter bucket is equipped with a lifting plate. The inner wall of the lifting plate is provided with a drainage groove. The top of the lifting plate is equipped with an inclined plate.

[0009] Preferably, the outer wall of the filter bucket is equipped with a liquid inlet end, the bottom of the filter bucket is equipped with a liquid outlet end, the outer walls of the liquid inlet end and the liquid outlet end are equipped with connecting flanges, the top of the filter bucket is equipped with a top cover, the inner wall of the filter bucket is equipped with a positioning block, the outer wall of the positioning block is equipped with a positioning plate, the inner wall of the positioning plate is equipped with a filter groove, and the precision filter bag is located at the bottom of the positioning plate.

[0010] Preferably, the inner wall of the precision filter bag is provided with a layering mechanism, which is used to filter impurity particles by size.

[0011] Preferably, the layering mechanism includes an assembly rod, and the inner wall of the sealing tube is provided with the assembly rod.

[0012] Preferably, a coarse filter bag is installed at the bottom of the assembly rod.

[0013] Preferably, an assembly plate is mounted on the outer wall of the assembly rod.

[0014] Preferably, the inner wall of the sealing tube is provided with assembly screw grooves, and two sets of assembly screw grooves are provided. The outer wall of the assembly plate is equipped with an assembly screw, and one end of the assembly screw extends into the interior of the assembly screw groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model has a disassembly mechanism to facilitate the disassembly of the precision filter bag. Existing precision filter bags cannot be easily disassembled, so this needs to be improved. First, the extension plate is installed below the positioning plate by the attraction of the first and second magnets, and then the precision filter bag is installed. The length of the sealing tube is determined according to the gap between the positioning plate and the extension plate. Then, the positioning plate is moved into the filter barrel. The precision filter bag is supported by a lifting plate below, and the inclined plate guides the filtered water. The filtered water is discharged through the drainage channel, which facilitates the installation and disassembly of the precision filter bag.

[0017] 2. This utility model uses a layered filtration mechanism to filter impurity particles by size. Existing filters cannot perform layered filtration, resulting in the precision filter bag having to filter impurity particles of different sizes, which places a heavy burden on it and increases the frequency of replacement. Therefore, this needs to be improved. First, the coarse filter bag is moved into the interior of the precision filter bag. Then, the assembly plate is moved to the outside of the assembly screw groove. Finally, the coarse filter bag is fixed into the assembly screw groove by the assembly screw to install the coarse filter bag. The coarse filter bag filters the larger particles first, and then the smaller particles are filtered by the precision filter bag before being discharged. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the filter barrel of this utility model;

[0019] Figure 2 This is a schematic diagram of the front structure of the filter barrel of this utility model;

[0020] Figure 3 This is a schematic diagram of the precision filter bag part of this utility model;

[0021] Figure 4 This is a schematic diagram of the assembly rod part of this utility model.

[0022] In the diagram: 1. Filter barrel; 2. Liquid inlet end; 3. Liquid outlet end; 4. Connecting flange; 5. Top cover; 6. Positioning block; 7. Positioning plate; 8. Filter tank; 9. Precision filter bag; 10. Fitting groove; 11. First magnet; 12. Extension plate; 13. Second magnet; 14. Sealing tube; 15. Lifting plate; 16. Inclined plate; 17. Drainage trough; 18. Assembly rod; 19. Coarse filter bag; 20. Assembly plate; 21. Assembly screw groove; 22. Assembly screw. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2 A multi-layer precision filter includes: a filter barrel 1, an inlet end 2, an outlet end 3, a positioning block 6, a positioning plate 7, and a precision filter bag 9. The inlet end 2 is installed on the outer wall of the filter barrel 1, and the outlet end 3 is installed at the bottom of the filter barrel 1. A connecting flange 4 is installed on the outer wall of the inlet end 2 and the outlet end 3. A top cover 5 is installed on the top of the filter barrel 1. The positioning block 6 is installed on the inner wall of the filter barrel 1, and the positioning plate 7 is installed on the outer wall of the positioning block 6. A filter groove 8 is installed on the inner wall of the positioning plate 7. The precision filter bag 9 is located at the bottom of the positioning plate 7. First, the positioning plate 7 is installed on the positioning block 6 with bolts, and then the precision filter bag 9 is installed in the filter barrel 1. Then, the filter bag 9 is connected to the external water supply source and the inlet end 2 through the connecting flange 4. The wastewater enters the filter barrel 1 and is filtered by the precision filter bag 9. The filtered water is discharged through the outlet end 3.

[0027] Please see Figure 2 and Figure 3The bottom of the positioning plate 7 is provided with a disassembly mechanism for easy disassembly of the precision filter bag 9. The disassembly mechanism includes a fitting groove 10 and an extension plate 12. The bottom of the positioning plate 7 is provided with two sets of fitting grooves 10. A first magnet 11 is installed on the inner wall of the fitting groove 10. The extension plate 12 is located on the outer wall of the precision filter bag 9, and two sets of extension plates 12 are provided. A second magnet 13 is installed on the top of the extension plate 12. A sealing tube 14 is installed on the inner wall of the filter tank 8. A lifting plate 15 is installed on the inner wall of the filter bucket 1. A drainage groove 17 is provided on the inner wall of the lifting plate 15. An inclined plate 1 is installed on the top of the lifting plate 15. 6. The existing precision filter bag 9 cannot be easily disassembled, so it needs to be improved. First, the extension plate 12 is installed below the positioning plate 7 by the attraction of the first magnet 11 and the second magnet 13, and then the precision filter bag 9 is installed. The length of the sealing tube 14 is determined according to the gap between the positioning plate 7 and the extension plate 12. Then, the positioning plate 7 is moved into the filter barrel 1. The precision filter bag 9 is then supported by the lifting plate 15 below, and the inclined plate 16 guides the filtered water. The filtered water is discharged through the drain trough 17, which facilitates the installation and disassembly of the precision filter bag 9.

[0028] Please see Figure 3 and Figure 4 The inner wall of the precision filter bag 9 is equipped with a stratification mechanism for filtering impurity particles by size. The stratification mechanism includes an assembly rod 18, which is located on the inner wall of the sealing tube 14. A coarse filter bag 19 is installed at the bottom of the assembly rod 18, and an assembly plate 20 is installed on the outer wall of the assembly rod 18. The inner wall of the sealing tube 14 is provided with assembly screw grooves 21, and two sets of these grooves are provided. An assembly screw 22 is installed on the outer wall of the assembly plate 20, with one end of the screw extending into the interior of the assembly screw groove 21. Existing filters cannot perform stratification. The filtration process requires the precision filter bag 9 to filter impurities of different sizes, which places a heavy burden on it and increases the frequency of replacement. Therefore, an improvement is needed. First, the coarse filter bag 19 is moved into the interior of the precision filter bag 9. Then, the assembly plate 20 is moved to the outside of the assembly screw groove 21. Finally, the coarse filter bag 19 is installed by fixing it into the assembly screw groove 21 with the assembly screw 22. The coarse filter bag 19 then filters the larger particles first, and then the smaller particles are filtered by the precision filter bag 9 before being discharged.

[0029] The working principle is as follows: First, the positioning plate 7 is installed onto the positioning block 6 using bolts. Then, the precision filter bag 9 is installed in the filter tank 1. Next, the connection flange 4 is used to connect to the external water supply source and the liquid inlet 2. Wastewater enters the filter tank 1 and is filtered by the precision filter bag 9. The filtered water is discharged through the drain end 3. The existing precision filter bag 9 cannot be easily disassembled, so this needs to be improved. First, the extension plate 12 is installed below the positioning plate 7 using the first magnet 11 and the second magnet 13. Then, the precision filter bag 9 is installed. The length of the sealing tube 14 is determined according to the gap between the positioning plate 7 and the extension plate 12. Then, the positioning plate 7 is moved into the filter tank 1. A support plate 1 is located below the precision filter bag 9. The filter is supported by a 5-way tilting plate 16, which guides the filtered water through a drain trough 17. This facilitates the installation and removal of the precision filter bag 9. Existing filters cannot perform layered filtration, resulting in the precision filter bag 9 having to filter impurities of different sizes, which places a heavy burden on it and increases the frequency of replacement. Therefore, this needs to be improved. First, the coarse filter bag 19 is moved into the interior of the precision filter bag 9. Then, the assembly plate 20 is moved to the outside of the assembly screw groove 21. The coarse filter bag 19 is then installed by fixing it into the assembly screw groove 21 with the assembly screw 22. The coarse filter bag 19 first filters larger particles, and then the precision filter bag 9 filters smaller particles before finally discharging them.

[0030] 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.

Claims

1. A multi-layer precision filter, characterized in that, Includes: filter barrel (1), liquid inlet (2), liquid outlet (3), positioning block (6), positioning plate (7) and precision filter bag (9). The bottom of the positioning plate (7) is provided with a disassembly mechanism, which is used to facilitate the disassembly of the precision filter bag (9). The disassembly mechanism includes a fitting groove (10) and an extension plate (12). The bottom of the positioning plate (7) is provided with two sets of fitting grooves (10). The inner wall of the fitting groove (10) is equipped with a first magnet (11). The extension plate (12) is located on the outer wall of the precision filter bag (9), and the extension plate (12) is provided with two sets. The top of the extension plate (12) is equipped with a second magnet (13). The inner wall of the filter tank (8) is equipped with a sealing tube (14). The inner wall of the filter bucket (1) is equipped with a lifting plate (15). The inner wall of the lifting plate (15) is provided with a drainage groove (17). The top of the lifting plate (15) is equipped with an inclined plate (16).

2. The precision filter with a multi-layer structure according to claim 1, characterized in that: The filter barrel (1) has an inlet end (2) installed on its outer wall, a drain end (3) installed at the bottom of its bottom, a connecting flange (4) installed on the outer walls of the inlet end (2) and the drain end (3), a top cover (5) installed on the top of its top, a positioning block (6) installed on the inner wall of its bottom, a positioning plate (7) installed on the outer wall of the positioning block (6), a filter groove (8) installed on the inner wall of the positioning plate (7), and a precision filter bag (9) located at the bottom of the positioning plate (7).

3. A multi-layer precision filter according to claim 2, characterized in that: The inner wall of the precision filter bag (9) is provided with a layering mechanism, which is used to filter impurity particles by size.

4. A multi-layer precision filter according to claim 3, characterized in that: The layered mechanism includes an assembly rod (18), and the inner wall of the sealing tube (14) is provided with the assembly rod (18).

5. A multi-layer precision filter according to claim 4, characterized in that: A coarse filter bag (19) is installed at the bottom of the assembly rod (18).

6. A multi-layer precision filter according to claim 4, characterized in that: An assembly plate (20) is installed on the outer wall of the assembly rod (18).

7. A multi-layer precision filter according to claim 6, characterized in that: The inner wall of the sealing tube (14) is provided with an assembly screw groove (21), and there are two sets of assembly screw grooves (21). The outer wall of the assembly plate (20) is equipped with an assembly screw (22), and one end of the assembly screw (22) extends into the interior of the assembly screw groove (21).

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