Efficient and durable air filter cartridge

Abstract

The utility model discloses a high-efficiency durable air filter cartridge which comprises a filter cartridge bottom tray, a pleated barrel body which is fixed above the filter cartridge bottom tray and is coaxial with the filter cartridge bottom tray, a plurality of uniform filter pleat bridles which are wound on the outer ring of the pleated barrel body, a mounting chuck which is fixed above the pleated barrel body and is coaxial with the pleated barrel body, and a supporting inner framework, and the sealing ring is fixed above the mounting chuck and is coaxial with the mounting chuck. The uniform filter pleat bridle with the through holes is adopted, so that the filter pleats of the filter cartridge can be uniformly distributed by 100%, manual intervention is not needed, and the filtering efficiency and the production efficiency of the filter cartridge are greatly improved. The hanging columns are arranged on the tray at the bottom of the filter cartridge and the mounting chuck, so that hanging connection with the filter pleats is realized, the tensile effect of the filter cartridge in the vertical direction is enhanced, and the overall durability is enhanced under the same condition.

Description

Technical Field

[0001] The utility model relates to an air dust removal filter device used in an industrial dust collector, in particular to an air filter cartridge used in a filter cartridge type dust collector. Background Art

[0002] The pleated filter cartridges currently used in the market are processed through the filter material folding process. In order to prevent the cylinder from bulging instantly and causing irreversible damage during backblowing and cleaning, the outer ring of the filter cartridge is generally tied with a strap. Based on factors such as economy and production efficiency, the bottom tray and mounting chuck of the filter cartridge are usually conventionally bonded to the pleated cylinder with connecting glue to form a whole.

[0003] However, during the processing and production process, when the filter cartridge is bundled with tape, the gaps between the pleats of the filter cartridge are easily uneven or even two adjacent pleats are close to each other, thereby reducing the actual effective filtration area of ​​the filter cartridge and lowering the filtration efficiency. The bottom tray and mounting chuck of the filter cartridge are connected to the pleated cylinder only by the bonding force of the connecting glue. In subsequent use, the bottom tray and mounting chuck of the filter cartridge are easily separated and fallen off from the pleated cylinder due to the influence of the pulse backflush force, thus affecting the service life of the filter cartridge. Summary of the invention

[0004] The purpose of the utility model is to provide an efficient and durable air filter cartridge to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a filter cartridge bottom tray, a pleated cylinder fixed above the filter cartridge bottom tray and coaxially, a plurality of uniform filter pleat belts wrapped around the outer ring of the pleated cylinder, a mounting chuck fixed above the pleated cylinder and coaxially, a supporting inner skeleton, and a sealing ring fixed above the mounting chuck and coaxially.

[0006] In the technical scheme of the utility model described above, the bottom tray of the filter cartridge is composed of an annular plane A, a hollow cone and a cylindrical tubular structure B, the vertex of the hollow cone is located above the annular plane A, the central axis of the hollow cone coincides with the central axis of the annular plane A, the bottom circle of the hollow cone coincides with the inner circle of the annular plane A, the bottom circle of the hollow cone is adapted to the inner edge of the pleated cylinder, the cylindrical tubular structure B is located above the annular plane A, the central axis of the cylindrical tubular structure B coincides with the central axis of the annular plane A, the outer circle of the annular plane A coincides with the bottom outer circle of the cylindrical tubular structure B, and the inner edge of the cylindrical tubular structure B is adapted to the outer edge of the pleated cylinder.

[0007] In the technical scheme of the utility model described above, a number of evenly distributed reinforcing mounting ribs are provided in the circumferential range above the circular plane A, extending from the outer circle to the inner circle, the central axis of the circle surrounded by the several reinforcing mounting ribs coincides with the central axis of the circular plane A, and the several reinforcing mounting ribs are arranged in a circular array with the central axis of the circular plane A as the rotation axis; each of the reinforcing mounting ribs is composed of a mounting rib and a number of hanging columns, the mounting rib is a vertically placed rectangular parallelepiped, the mounting rib is located above the circular plane A and perpendicular to the circular plane A, the facade C of the mounting rib coincides with the outer facade of the filter pleats of the pleated cylinder, the hanging column is perpendicular to the facade C, the hanging column is a cylindrical or square column structure, the vertical distances from the central axes of the several hanging columns to the circular plane A are equal, and the horizontal length of the hanging column is determined according to actual needs.

[0008] In the technical solution of the utility model described above, the pleated cylinder is inserted into the cylindrical structure B, and the hollow cone is inserted into the inner circle of the pleated cylinder.

[0009] In the technical solution of the utility model described above, a plurality of holes D are provided at appropriate positions below the filter pleats on the pleated cylinder that coincide with the vertical surface C, the number of the holes D is the same as the number of the hanging column one, the diameter of the hole D is the same as the diameter of the hanging column one, the central axis of the hole D coincides with the central axis of the hanging column one, the hanging column one is inserted into the hole D, and the number of filter pleats of the pleated cylinder is determined according to actual needs.

[0010] In the technical solution of the utility model described above, the number of the uniform filter pleat belts can be determined according to the length of the pleated cylinder and actual needs.

[0011] In the technical solution of the utility model, the uniform filter pleat belt is a vertically placed cylindrical tube structure, and the outer surface of the uniform filter pleat belt is a cylindrical surface.

[0012] In the technical solution of the utility model described above, the uniform filter pleat band is provided with arc-shaped protrusions, and the arc-shaped protrusions are vertically and evenly distributed on the inner side of the uniform filter pleat band. The number of the arc-shaped protrusions is several and is the same as the number of filter pleats of the pleated cylinder. The central axis of the circle 2 surrounded by the several arc-shaped protrusions coincides with the central axis of the uniform filter pleat band. The several arc-shaped protrusions are arranged in a circular array with the central axis of the surrounded circle 2 as the rotation axis. Each of the arc-shaped protrusions is axially symmetrical, and the symmetry axis of the arc-shaped protrusions passes horizontally through the central axis of the surrounded circle 2.

[0013] In the technical solution of the utility model described above, the uniform filter pleat band is provided with through holes, and the through holes are evenly distributed on the uniform filter pleat band. The number of the through holes is several and is the same as the number of filter pleats of the pleated cylinder. The shape of the through holes is circular through holes or square through holes or any combination of circular through holes and square through holes. The central axis of the circle formed by the several through holes coincides with the central axis of the uniform filter pleat band. The central axis of each of the through holes is perpendicular to the outer surface of the uniform filter pleat band and passes horizontally through the central axis of the circle formed. Each of the through holes is located exactly in the middle of two adjacent arc-shaped protrusions.

[0014] In the technical solution of the utility model described above, when the uniform filter pleat band is assembled with the pleated cylinder, each of the arc-shaped protrusions is located between the outer pleat tips of two adjacent filter pleats, and the setting position of the uniform filter pleat band is determined according to actual needs.

[0015] In the technical scheme of the utility model described above, the mounting chuck comprises a chuck annular plane E, a cylindrical tube structure F, a cylindrical tube structure G, a plurality of outer ring ridges which are located in the same plane as the chuck annular plane E and are evenly distributed, and a plurality of inner ring ridges which are located in the same plane as the chuck annular plane E and are evenly distributed. The cylindrical tube F structure is located below the chuck annular plane E, the central axis of the cylindrical tube structure F coincides with the central axis of the chuck annular plane E, the central axis of the cylindrical tube structure G coincides with the central axis of the chuck annular plane E, the outer circle circular diameter d1 of the chuck annular plane E is smaller than the top outer circle circular diameter d2 of the cylindrical tube structure F, and the diameter d1 is determined according to actual needs.

[0016] In the technical scheme of the utility model described above, a number of evenly distributed reinforcing mounting ribs are provided in the circumferential range below the circular plane E, extending from the outer circle to the inner circle, the central axis of the circle four surrounded by the several reinforcing mounting ribs coincides with the central axis of the circular plane E, and the several reinforcing mounting ribs are arranged in a circular array with the central axis of the circular plane E as the rotation axis; each of the reinforcing mounting ribs is composed of a mounting vertical rib and a number of hanging columns, the mounting vertical rib is a vertically placed rectangular parallelepiped, the mounting vertical rib is located above the circular plane E and perpendicular to the circular plane E, the facade H of the mounting vertical rib coincides with the outer facade of the filter pleats of the pleated cylinder, the hanging column is perpendicular to the facade H, the hanging column is a cylindrical or square column structure, the vertical distances from the central axes of the several hanging columns to the circular plane E are equal, and the horizontal length of the hanging column is determined according to actual needs.

[0017] In the technical solution of the utility model described above, a plurality of holes I are provided at appropriate positions above the filter pleats on the pleated cylinder that coincide with the vertical surface H, the number of the holes I is the same as the number of the hanging poles two, the diameter of the hole I is the same as the diameter of the hanging pole two, the central axis of the hole I coincides with the central axis of the hanging pole two, the hanging pole two is inserted into the hole I, and the number of filter pleats of the pleated cylinder is determined according to actual needs.

[0018] In the technical solution of the utility model described above, the supporting inner frame is made of metal material, and the supporting inner frame is located inside the pleated cylinder and has the same height as the pleated cylinder.

[0019] In the technical solution of the utility model described above, the upper part of the supporting inner skeleton and the upper part of the pleated cylinder are connected and fixed to the mounting chuck via connecting glue A, and the lower part of the supporting inner skeleton and the pleated cylinder are connected and fixed to the bottom tray of the filter cartridge via connecting glue B. The thickness of the connecting glue A is sufficient to bury the second hanging column in the connecting glue A, and the thickness of the connecting glue B is sufficient to bury the first hanging column in the connecting glue B.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model provides a uniform filter pleat belt with uniformly distributed arc-shaped protrusions, so that the filter pleats of the pleated cylinder can be evenly distributed, avoiding adjacent filter pleats from sticking together, and improving the production efficiency of the filter cartridge without manual intervention; at the same time, through holes are provided on the uniform filter pleat belt, thereby reducing the shielding of the filter pleats by the existing belt, thereby reducing the loss of effective filtration area; ultimately, the filtration effect is more efficient than that of conventional filter cartridges under the same conditions, and the production efficiency of the uniform filter pleat process is improved.

[0022] 2. The utility model also provides hanging columns on the bottom tray of the filter cartridge and the mounting chuck, so that the bottom tray of the filter cartridge and the mounting chuck are hung and connected with the filter pleats of the filter cartridge, and then the pleated cylinder is respectively bonded to the bottom tray of the filter cartridge and the mounting chuck with glue in a conventional manner; finally, in the vertical direction, the tensile effect between the pleated cylinder and the bottom tray of the filter cartridge and the mounting chuck is better, making the overall durability stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the pleated cylinder of the utility model;

[0025] Figure 3 This is a front view of the bottom tray of the filter cartridge of the utility model being placed upside down;

[0026] Figure 4This is a bottom view of the filter cartridge bottom tray of the utility model placed upside down;

[0027] Figure 5 This is a schematic diagram of a three-dimensional structure of a bottom tray of a filter cartridge of the utility model placed upright;

[0028] Figure 6 This is a schematic diagram of the uniform filter pleat belt structure of the utility model;

[0029] Figure 7 This is a bottom view of the installation chuck of the utility model;

[0030] Figure 8 This is a schematic diagram of the external three-dimensional structure of the mounting chuck of the utility model;

[0031] Fig. 9 This is a schematic diagram of the three-dimensional structure of the inner surface of the mounting chuck of the utility model;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the sealing ring of the utility model;

[0033] Numbers in the figure: bottom tray of filter cartridge -1; pleated cylinder -2; uniform filter pleat band -3; mounting chuck -4; supporting inner frame -5, sealing ring -6; mounting vertical rib one -7; hanging column one -8; hollow cone -9; filter pleat outer surface -10; hole D-11; arc-shaped protrusion -12; square through hole -13; outer pleat tip -14; mounting vertical rib two -15; hanging column two -16; hole I-17. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-10The utility model provides a technical solution: it includes a filter cartridge bottom tray, a pleated cylinder fixed above the filter cartridge bottom tray and coaxially, a plurality of uniform filter pleat belts wrapped around the outer ring of the pleated cylinder, a coaxial mounting chuck fixed above the pleated cylinder, a supporting inner frame, and a coaxial sealing ring fixed above the mounting chuck. The bottom tray of the filter cartridge is composed of an annular plane A, a hollow cone and a cylindrical tubular structure B. The apex of the hollow cone is located above the annular plane A, the central axis of the hollow cone coincides with the central axis of the annular plane A, the bottom circle of the hollow cone coincides with the inner circle of the annular plane A, the bottom circle of the hollow cone is adapted to the inner edge of the pleated cylinder, the cylindrical tubular structure B is located above the annular plane A, the central axis of the cylindrical tubular structure B coincides with the central axis of the annular plane A, the outer circle of the annular plane A coincides with the bottom outer circle of the cylindrical tubular structure B, and the inner edge of the cylindrical tubular structure B is adapted to the outer edge of the pleated cylinder. A plurality of evenly distributed reinforcing installation ribs 1 are provided in the circumference range above the circular plane A, extending from the outer circle to the inner circle. The central axis of the circle 1 formed by the plurality of reinforcing installation ribs 1 coincides with the central axis of the circular plane A. The plurality of reinforcing installation ribs 1 are arranged in a circular array with the central axis of the circular plane A as the rotation axis. Each of the reinforcing installation ribs 1 is composed of a mounting rib 1 and a plurality of hanging columns 1. The mounting rib 1 is a vertically placed rectangular parallelepiped. The mounting rib 1 is located above the circular plane A and is perpendicular to the circular plane A. The vertical surface C of the mounting rib 1 coincides with the outer vertical surface of the filter pleats of the pleated cylinder. The hanging column 1 is perpendicular to the vertical surface C. The hanging column 1 is a cylindrical structure. The vertical distances from the central axes of the plurality of hanging columns 1 to the circular plane A are all equal. The horizontal length of the hanging column 1 is determined according to actual needs. The pleated cylinder is inserted into the cylindrical structure B, and the hollow cone is inserted into the inner circle of the pleated cylinder. A plurality of holes D are provided at appropriate positions below the filter pleats on the pleated cylinder that overlap with the vertical surface C. The number of holes D is the same as the number of the hanging column 1, the diameter of the hole D is the same as the diameter of the hanging column 1, the central axis of the hole D overlaps with the central axis of the hanging column 1, and the hanging column 1 is inserted into the hole D. The number of filter pleats of the pleated cylinder is determined according to actual needs. The number of the uniform filter pleat bands can be determined according to the length of the pleated cylinder and actual needs. The uniform filter pleat band is a vertically placed cylindrical structure, and the outer surface of the uniform filter pleat band is a cylindrical surface.The uniform filter pleat band is provided with arc-shaped protrusions, which are vertically and evenly distributed on the inner side of the uniform filter pleat band. The number of the arc-shaped protrusions is several and is the same as the number of filter pleats of the pleated cylinder. The central axis of circle 2 surrounded by the arc-shaped protrusions coincides with the central axis of the uniform filter pleat band. The arc-shaped protrusions are arranged in a circular array with the central axis of circle 2 as the rotation axis. Each arc-shaped protrusion is axially symmetrical, and the symmetry axis of the arc-shaped protrusion passes horizontally through the central axis of circle 2. The uniform filter pleat band is provided with through holes, and the through holes are evenly distributed on the uniform filter pleat band. The number of the through holes is several and the same as the number of filter pleats of the pleated cylinder. The shape of the through holes is a square through hole. The central axis of the circle formed by the several through holes coincides with the central axis of the uniform filter pleat band. The central axis of each hole in the through holes is perpendicular to the outer surface of the uniform filter pleat band and passes horizontally through the central axis of the circle formed. Each hole in the through holes is located in the middle of two adjacent arc-shaped protrusions. When the uniform filter pleat band is assembled with the pleated cylinder, each arc-shaped protrusion is located between the outer pleat tips of two adjacent filter pleats. The setting position of the uniform filter pleat band is determined according to actual needs. The mounting chuck comprises a chuck annular plane E, a cylindrical tube structure F, a cylindrical tube structure G, a plurality of outer ring ridges which are located in the same plane as the chuck annular plane E and are evenly distributed, and a plurality of inner ring ridges which are located in the same plane as the chuck annular plane E and are evenly distributed. The cylindrical tube F structure is located below the chuck annular plane E, the central axis of the cylindrical tube structure F coincides with the central axis of the chuck annular plane E, the central axis of the cylindrical tube structure G coincides with the central axis of the chuck annular plane E, the outer circle circular diameter d1 of the chuck annular plane E is smaller than the top outer circle circular diameter d2 of the cylindrical tube structure F, and the diameter d1 is determined according to actual needs. A number of evenly distributed reinforcing mounting ribs are provided in the circumferential range below the circular plane E, extending from the outer circle to the inner circle. The central axis of the circle four surrounded by the several reinforcing mounting ribs coincides with the central axis of the circular plane E. The several reinforcing mounting ribs are arranged in a circular array with the central axis of the circular plane E as the rotation axis. Each of the reinforcing mounting ribs is composed of an installation rib and several hanging columns. The installation rib is a vertically placed rectangular parallelepiped. The installation rib is located above the circular plane E and is perpendicular to the circular plane E. The facade H of the installation rib coincides with the outer facade of the filter pleats of the pleated cylinder. The hanging column is perpendicular to the facade H. The hanging column is a cylindrical structure. The vertical distances from the central axes of several hanging columns to the circular plane E are equal. The horizontal length of the hanging column is determined according to actual needs.A plurality of holes I are provided at appropriate positions above the filter pleats on the pleated cylinder that coincide with the vertical surface H. The number of the holes I is the same as the number of the two hanging posts. The diameter of the hole I is the same as the diameter of the two hanging posts. The central axis of the hole I coincides with the central axis of the two hanging posts. The two hanging posts are inserted into the hole I. The number of filter pleats of the pleated cylinder is determined according to actual needs. The supporting inner skeleton is made of metal. The supporting inner skeleton is located in the pleated cylinder and has the same height as the pleated cylinder. The supporting inner skeleton is connected and fixed to the installation chuck through a connecting glue A above the pleated cylinder. The supporting inner skeleton is connected and fixed to the bottom tray of the filter cartridge through a connecting glue B below the pleated cylinder. The thickness of the connecting glue A is sufficient to bury the two hanging posts in the connecting glue A, and the thickness of the connecting glue B is sufficient to bury the one hanging post in the connecting glue B.

[0036] It should be noted that in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and durable air filter cartridge, characterized in that: It includes a filter cartridge bottom tray, a pleated cylinder fixed above the filter cartridge bottom tray and coaxially, a plurality of uniform filter pleated belts wrapped around the outer ring of the pleated cylinder, a coaxial mounting chuck fixed above the pleated cylinder, a supporting inner frame, and a coaxial sealing ring fixed above the mounting chuck; The bottom tray of the filter cartridge is composed of a circular plane A, a hollow cone and a cylindrical structure B; A plurality of evenly distributed reinforcement installation ribs 1 are provided in the circumference above the circular plane A in the direction extending from the outer circle to the inner circle, each of the reinforcement installation ribs 1 is composed of a mounting rib 1 and a plurality of hanging columns 1, and the vertical surface C of the mounting rib 1 coincides with the external vertical surface of the filter pleats of the pleated cylinder; The mounting chuck is composed of a chuck annular plane E, a cylindrical tube structure F, a cylindrical tube structure G, a plurality of outer ring ridges that are located in the same plane as the chuck annular plane E and are evenly distributed, and a plurality of inner ring ridges that are located in the same plane as the chuck annular plane E and are evenly distributed; A plurality of evenly distributed reinforcing mounting ribs are provided within the circumferential range below the circular plane E and extend from the outer circle to the inner circle. Each of the reinforcing mounting ribs is composed of a mounting vertical rib and a plurality of hanging columns. The vertical surface H of the mounting vertical rib coincides with the outer vertical surface of the filter pleats of the pleated cylinder.

2. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The apex of the hollow cone is located above the annular plane A, the central axis of the hollow cone coincides with the central axis of the annular plane A, the bottom circle of the hollow cone coincides with the inner circle of the annular plane A, the bottom circle of the hollow cone adapts to the inner edge of the pleated cylinder, the cylindrical tubular structure B is located above the annular plane A, the central axis of the cylindrical tubular structure B coincides with the central axis of the annular plane A, the outer circle of the annular plane A coincides with the bottom outer circle of the cylindrical tubular structure B, and the inner edge of the cylindrical tubular structure B adapts to the outer edge of the pleated cylinder.

3. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The central axis of the circle formed by several reinforcing mounting ribs coincides with the central axis of the circular plane A, and several reinforcing mounting ribs are arranged in a circular array with the central axis of the circular plane A as the rotation axis; the mounting vertical rib is a vertically placed rectangular parallelepiped, the mounting vertical rib is located above the circular plane A and perpendicular to the circular plane A, the hanging column is perpendicular to the vertical surface C, the hanging column is a cylindrical or square column structure, the vertical distances from the central axes of several hanging columns to the circular plane A are equal, and the horizontal length of the hanging column is determined according to actual needs.

4. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The pleated cylinder is inserted into the cylindrical structure B, and the hollow cone is inserted into the inner circle of the pleated cylinder; a plurality of holes D are provided at appropriate positions below the filter pleats on the pleated cylinder that coincide with the vertical surface C, the number of the holes D is the same as the number of the hanging column one, the diameter of the hole D is the same as the diameter of the hanging column one, the central axis of the hole D coincides with the central axis of the hanging column one, the hanging column one is inserted into the hole D, and the number of filter pleats of the pleated cylinder is determined according to actual needs.

5. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The number of the uniform filter pleat band can be determined according to the length of the pleated cylinder and actual needs; the uniform filter pleat band is a vertically placed cylindrical structure, and the outer surface of the uniform filter pleat band is a cylindrical surface; the uniform filter pleat band is provided with arc-shaped protrusions, and the arc-shaped protrusions are vertically and evenly distributed on the inner side of the uniform filter pleat band, the number of the arc-shaped protrusions is several and is the same as the number of filter pleats of the pleated cylinder, the central axis of the circle 2 surrounded by the several arc-shaped protrusions coincides with the central axis of the uniform filter pleat band, and the several arc-shaped protrusions are arranged in a circular array with the central axis of the surrounded circle 2 as the rotation axis, each of the arc-shaped protrusions is axially symmetrical, and the symmetry axis of the arc-shaped protrusions passes horizontally through the center of the surrounded circle 2; the uniform filter pleat band The belt is provided with through holes, which are evenly distributed on the uniform filter pleat belt. The number of the through holes is several and is the same as the number of filter pleats of the pleated cylinder. The shape of the through holes is circular through holes or square through holes or any combination of circular through holes and square through holes. The central axis of the circle three surrounded by the through holes coincides with the central axis of the uniform filter pleat belt. The central axis of each hole in the through holes is perpendicular to the outer surface of the uniform filter pleat belt and passes horizontally through the center of the circle three. Each hole in the through holes is located in the middle of two adjacent arc-shaped protrusions. When the uniform filter pleat belt is assembled with the pleated cylinder, each arc-shaped protrusion is located between the outer pleat tips of two adjacent filter pleats. The setting position of the uniform filter pleat belt is determined according to actual needs.

6. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The cylindrical tube F structure is located below the chuck circular ring plane E, the central axis of the cylindrical tube structure F coincides with the central axis of the chuck circular ring plane E, the central axis of the cylindrical tube structure G coincides with the central axis of the chuck circular ring plane E, the outer circle diameter d1 of the chuck circular ring plane E is smaller than the top outer circle diameter d2 of the cylindrical tube structure F, and the diameter d1 is determined according to actual needs.

7. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The central axis of the circle four formed by several of the reinforcing mounting ribs coincides with the central axis of the circular plane E, and several of the reinforcing mounting ribs are arranged in a circular array with the central axis of the circular plane E as the rotation axis; the mounting vertical ribs are vertically placed rectangular parallelepipeds, the mounting vertical ribs are located above the circular plane E and perpendicular to the circular plane E, the hanging column is perpendicular to the vertical surface H, the hanging column is a cylindrical or square column structure, the vertical distances from the central axes of several hanging columns to the circular plane E are equal, and the horizontal length of the hanging column is determined according to actual needs.

8. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: A plurality of holes I are provided at appropriate positions above the filter pleats on the pleated cylinder that coincide with the vertical surface H. The number of the holes I is the same as the number of the hanging poles 2, the diameter of the hole I is the same as the diameter of the hanging pole 2, the central axis of the hole I coincides with the central axis of the hanging pole 2, the hanging pole 2 is inserted into the hole I, and the number of filter pleats of the pleated cylinder is determined according to actual needs.

9. The high-efficiency and durable air filter cartridge according to claim 1, characterized in that: The supporting inner frame is made of metal, and the supporting inner frame is located inside the pleated cylinder and has the same height as the pleated cylinder; the upper part of the supporting inner frame and the pleated cylinder is connected and fixed to the mounting chuck via connecting glue A; the lower part of the supporting inner frame and the pleated cylinder is connected and fixed to the bottom tray of the filter cartridge via connecting glue B, and the thickness of the connecting glue A is sufficient to bury the second hanging column into the connecting glue A, and the thickness of the connecting glue B is sufficient to bury the first hanging column into the connecting glue B.

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