A multi-layer composite air filter element

Abstract

The utility model discloses a kind of multilayer composite air filter element, including shell, the top of the shell is provided with top cover, the top of the shell is fixedly connected with limit net cylinder, the top of the limit net cylinder extends to the inside of top cover, the top of the shell movably connects with the ceramic filter element between two limit net cylinders, the outside and the inside of the ceramic filter element are respectively fixedly connected with polypropylene filter element and activated carbon filter element, connecting mechanism, connecting mechanism includes auxiliary block fixedly connected in the top of shell and respectively located between two limit net cylinders, the surface of the auxiliary block is respectively fixedly connected with the surface and inner wall of limit net cylinder.The utility model is connected by setting connecting rod, positioning groove, auxiliary plate and elastic sheet, top cover and shell and auxiliary block are connected, worker is convenient to disassemble top cover, worker is convenient to replace polypropylene filter element, ceramic filter element and activated carbon filter element, improve the practicality of air filter element.

Description

Technical Field

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

[0002] An air filter is a type of filter primarily used for air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms. A composite air filter integrates multiple filtration mechanisms and materials. For example, patent application number 200920022647.9, entitled "An Air Filter," belongs to the field of air filtration device technology. Its structure features a polyurethane (PU) cap bonded to the edge of the filter element at one end. This design eliminates the need for a separate upper cover, replacing it with a PU cap. No additional sealing ring or strip is required at the top of the air filter. The PU cap is formed by bonding and casting polyurethane material to the upper end of the filter element, creating a fixed and sealed connection. During use, the PU cap will not detach or leak, allowing for better filtration of the air through the designated filter material, thus improving the service life of engines and internal combustion engines.

[0003] The aforementioned technologies have the following drawbacks: Since composite air filters are composed of multiple filter materials that filter the air, and different filter materials have different lifespans, when the lifespan of one of the filter materials in the air filter reaches its limit, because the air filter is fixed to the end cap by adhesive casting, the worker cannot replace the filter material inside the air filter. This forces the worker to replace the entire air filter, thereby reducing the practicality of the air filter.

[0004] Therefore, it is necessary to redesign and modify the air filter to effectively prevent its low practicality. Utility Model Content

[0005] To address the problems mentioned in the background section, the present invention aims to provide a multi-layer composite air filter element that improves the practicality of air filters and solves the problem of low practicality of air filters.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer composite air filter element, comprising a shell, a top cover provided on the top of the shell, a limiting mesh cylinder fixedly connected to the top of the shell, the top of the limiting mesh cylinder extending into the interior of the top cover, a ceramic filter element movably connected to the top of the shell between two limiting mesh cylinders, and a polypropylene filter element and an activated carbon filter element fixedly connected to the outer and inner sides of the ceramic filter element, respectively.

[0007] The connecting mechanism includes an auxiliary block fixedly connected to the top of the outer shell and located between two limiting mesh cylinders. The surface of the auxiliary block is fixedly connected to the surface and inner wall of the limiting mesh cylinders, respectively. The auxiliary block is located outside the ceramic filter element. A connecting rod is fixedly connected to the top of the inside of the top cover. The bottom of the connecting rod passes through the auxiliary block and extends into the inside of the outer shell. A positioning groove located inside the outer shell is opened on the surface of the connecting rod. An auxiliary plate is movably connected inside the outer shell. Both sides of the auxiliary plate extend into the positioning groove. Spring pieces are fixedly connected to the front and back of the auxiliary plate. The end of the spring piece away from the auxiliary plate is fixedly connected to the inner wall of the outer shell. A control mechanism is provided at the bottom of the auxiliary plate. A limiting mechanism is provided inside the outer shell.

[0008] As a preferred embodiment of this utility model, the control mechanism includes a hexagonal slot formed on the top of the auxiliary plate, a rotating handle movably connected to the bottom of the outer shell, and a hexagonal block located on the top of the auxiliary plate that passes through the outer shell and the auxiliary plate in sequence and is fixedly connected to the top of the rotating handle. The hexagonal block is aligned with the hexagonal slot, and an auxiliary mechanism is provided on the top of the hexagonal block.

[0009] As a preferred embodiment of this utility model, the auxiliary mechanism includes a fixed plate fixedly connected to the top of the hexagonal block, and a return spring located outside the hexagonal block is fixedly connected to the bottom of the fixed plate, with the bottom of the return spring being movably connected to the top of the auxiliary plate.

[0010] As a preferred embodiment of this utility model, the limiting mechanism includes annular grooves respectively opened on the top and bottom of the auxiliary plate, and limiting frames are fixedly connected to the top and bottom of the housing, with the inner side of the limiting frame extending into the interior of the annular groove.

[0011] As a preferred embodiment of this utility model, the surface of the rotating handle is provided with a mounting groove located at the bottom of the housing, and an anti-slip rubber is fixedly connected inside the mounting groove, with the outer side of the anti-slip rubber extending to the outside of the mounting groove.

[0012] As a preferred embodiment of this invention, non-woven fabric is movably connected to both the outer side of the polypropylene filter element and the inner side of the activated carbon filter element, and the end of the non-woven fabric away from the ceramic filter element is fixedly connected to the surface and inner wall of the limiting mesh cylinder, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model connects the top cover to the outer shell and auxiliary block by setting a connecting rod, positioning groove, auxiliary plate and spring piece, which makes it convenient for workers to disassemble the top cover and replace polypropylene filter element, ceramic filter element and activated carbon filter element, thus improving the practicality of air filter element.

[0015] 2. This utility model provides workers with a force application position for rotating the auxiliary plate by setting a rotating handle, a hexagonal block and a hexagonal groove, which makes it convenient for workers to control the rotation of the auxiliary plate and facilitates the disassembly of the air filter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a perspective view of a partial component of the limiting mesh cylinder of this utility model;

[0018] Figure 3 This is a perspective view of a partial part of the top cover of this utility model;

[0019] Figure 4 This is a perspective view of a partial part of the outer shell of this utility model;

[0020] Figure 5 This is a perspective view of a partial part of the auxiliary plate of this utility model;

[0021] Figure 6 This is a perspective view of a portion of the fixing plate of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Top cover; 3. Limiting mesh cylinder; 4. Ceramic filter element; 5. Polypropylene filter element; 6. Activated carbon filter element; 7. Auxiliary block; 8. Connecting rod; 9. Positioning groove; 10. Auxiliary plate; 11. Spring piece; 12. Hexagonal groove; 13. Rotating handle; 14. Hexagonal block; 15. Fixing plate; 16. Return spring; 17. Annular groove; 18. Limiting frame; 19. Mounting groove; 20. Anti-slip rubber; 21. Non-woven fabric. 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] like Figures 1 to 6 As shown, the present invention provides a multi-layer composite air filter element, including a shell 1, a top cover 2 provided on the top of the shell 1, a limiting mesh cylinder 3 fixedly connected to the top of the shell 1, the top of the limiting mesh cylinder 3 extending into the interior of the top cover 2, a ceramic filter element 4 located between two limiting mesh cylinders 3 movably connected to the top of the shell 1, and a polypropylene filter element 5 and an activated carbon filter element 6 fixedly connected to the outer and inner sides of the ceramic filter element 4, respectively.

[0025] The connecting mechanism includes an auxiliary block 7 fixedly connected to the top of the outer shell 1 and located between the two limiting mesh cylinders 3. The surface of the auxiliary block 7 is fixedly connected to the surface and inner wall of the limiting mesh cylinder 3 respectively. The auxiliary block 7 is located outside the ceramic filter element 4. A connecting rod 8 is fixedly connected to the top inside the top cover 2. The bottom of the connecting rod 8 passes through the auxiliary block 7 and extends into the interior of the outer shell 1. A positioning groove 9 located inside the outer shell 1 is opened on the surface of the connecting rod 8. An auxiliary plate 10 is movably connected inside the outer shell 1. Both sides of the auxiliary plate 10 extend into the interior of the positioning groove 9. Spring pieces 11 are fixedly connected to the front and back of the auxiliary plate 10. The end of the spring piece 11 away from the auxiliary plate 10 is fixedly connected to the inner wall of the outer shell 1. A control mechanism is provided at the bottom of the auxiliary plate 10. A limiting mechanism is provided inside the outer shell 1.

[0026] refer to Figure 6 The control mechanism includes a hexagonal slot 12 on the top of the auxiliary plate 10, a rotating handle 13 movably connected to the bottom of the housing 1, a hexagonal block 14 located on the top of the auxiliary plate 10 and passing through the housing 1 and the auxiliary plate 10 in sequence, and the hexagonal block 14 is aligned with the hexagonal slot 12, and an auxiliary mechanism is provided on the top of the hexagonal block 14.

[0027] As a technical optimization of this utility model, by setting a rotating handle 13, a hexagonal block 14 and a hexagonal groove 12, a force application position for the worker to rotate the auxiliary plate 10 is provided, which makes it convenient for the worker to control the rotation of the auxiliary plate 10 and facilitates the worker to disassemble the air filter.

[0028] refer to Figure 6 The auxiliary mechanism includes a fixed plate 15 fixedly connected to the top of the hexagonal block 14, and a return spring 16 located outside the hexagonal block 14 is fixedly connected to the bottom of the fixed plate 15. The bottom of the return spring 16 is movably connected to the top of the auxiliary plate 10.

[0029] As a technical optimization of this utility model, by setting a fixing plate 15 and a reset spring 16, the hexagonal block 14 is kept away from the hexagonal groove 12 when the air filter element does not need to be disassembled, so as to avoid the auxiliary plate 10 from rotating due to accidental contact with the rotating handle 13.

[0030] refer to Figure 5 The limiting mechanism includes annular grooves 17 respectively opened on the top and bottom of the auxiliary plate 10, and limiting frames 18 are fixedly connected to the top and bottom of the housing 1, with the inner side of the limiting frame 18 extending into the interior of the annular groove 17.

[0031] As a technical optimization of this utility model, by setting an annular groove 17 and a limiting frame 18, the auxiliary plate 10 is limited to avoid the auxiliary plate 10 from shifting away from the positioning groove 9, thus affecting its fixation to the top cover 2.

[0032] refer to Figure 6 The surface of the rotating handle 13 is provided with a mounting groove 19 located at the bottom of the housing 1. An anti-slip rubber 20 is fixedly connected inside the mounting groove 19, and the outer side of the anti-slip rubber 20 extends to the outside of the mounting groove 19.

[0033] As a technical optimization of this utility model, by setting the mounting groove 19 and the anti-slip rubber 20, the surface friction of the rotating handle 13 is increased, so as to prevent the worker from being unable to rotate the rotating handle 13 due to slipping hands, thus preventing the worker from being unable to disassemble or assemble the air filter.

[0034] refer to Figure 2 Non-woven fabric 21 is movably connected to the outer side of the polypropylene filter element 5 and the inner side of the activated carbon filter element 6. The end of the non-woven fabric 21 away from the ceramic filter element 4 is fixedly connected to the surface and inner wall of the limiting mesh cylinder 3, respectively.

[0035] As a technical optimization of this utility model, non-woven fabric 21 is provided to protect the polypropylene filter element 5 and the activated carbon filter element 6, so as to avoid friction between the polypropylene filter element 5 and the activated carbon filter element 6 and the limiting mesh cylinder 3, which would cause the polypropylene filter element 5 and the activated carbon filter element 6 to be damaged.

[0036] The working principle and usage process of this utility model are as follows: When in use, first move the rotating handle 13 downward so that the hexagonal block 14 is inserted into the hexagonal groove 12. Then rotate the rotating handle 13. The rotating handle 13 drives the auxiliary plate 10 to rotate through the hexagonal block 14 and the hexagonal groove 12, so that the auxiliary plate 10 moves away from the positioning groove 9. At this time, move the top cover 2 upward so that the connecting rod 8 moves away from the outer shell 1 and the auxiliary block 7. Then replace the polypropylene filter element 5, ceramic filter element 4 and activated carbon filter element 6. After that, reinsert the connecting rod 8 into the auxiliary block 7 so that the bottom of the connecting rod 8 is inserted into the outer shell 1. Release the rotating handle 13. The auxiliary plate 10 will rotate in the opposite direction under the push of the spring piece 11 so that the auxiliary plate 10 is inserted into the positioning groove 9, thereby realizing the replacement of the filter material in the air filter element.

[0037] In summary, this multi-layer composite air filter element, through the setting of connecting rod 8, positioning groove 9, auxiliary plate 10 and spring piece 11, connects the top cover 2 with the outer shell 1 and auxiliary block 7, which facilitates the worker to disassemble the top cover 2 and replace the polypropylene filter element 5, ceramic filter element 4 and activated carbon filter element 6, thereby improving the practicality of the air filter element.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite air filter element, comprising a housing (1), a top cover (2) provided on the top of the housing (1), a limiting mesh cylinder (3) fixedly connected to the top of the housing (1), the top of the limiting mesh cylinder (3) extending into the interior of the top cover (2), a ceramic filter element (4) movably connected to the top of the housing (1) between two limiting mesh cylinders (3), a polypropylene filter element (5) and an activated carbon filter element (6) fixedly connected to the outer and inner sides of the ceramic filter element (4), respectively, characterized in that: The connecting mechanism includes an auxiliary block (7) fixedly connected to the top of the outer shell (1) and located between the two limiting mesh cylinders (3). The surface of the auxiliary block (7) is fixedly connected to the surface and inner wall of the limiting mesh cylinder (3) respectively. The auxiliary block (7) is located outside the ceramic filter element (4). A connecting rod (8) is fixedly connected to the top inside the top cover (2). The bottom of the connecting rod (8) passes through the auxiliary block (7) and extends into the interior of the outer shell (1). A positioning groove (9) located inside the outer shell (1) is opened on the surface of the connecting rod (8). An auxiliary plate (10) is movably connected inside the outer shell (1). Both sides of the auxiliary plate (10) extend into the interior of the positioning groove (9). A spring piece (11) is fixedly connected to the front and back of the auxiliary plate (10). The end of the spring piece (11) away from the auxiliary plate (10) is fixedly connected to the inner wall of the outer shell (1). A control mechanism is provided at the bottom of the auxiliary plate (10). A limiting mechanism is provided inside the outer shell (1).

2. The multi-layer composite air filter element according to claim 1, characterized in that: The control mechanism includes a hexagonal slot (12) on the top of the auxiliary plate (10), and a rotating handle (13) is movably connected to the bottom of the outer shell (1). The top of the rotating handle (13) passes through the outer shell (1) and the auxiliary plate (10) in sequence and is fixedly connected to a hexagonal block (14) located on the top of the auxiliary plate (10). The hexagonal block (14) is aligned with the hexagonal slot (12), and an auxiliary mechanism is provided on the top of the hexagonal block (14).

3. The multi-layer composite air filter element according to claim 2, characterized in that: The auxiliary mechanism includes a fixed plate (15) fixedly connected to the top of the hexagonal block (14), and a return spring (16) located outside the hexagonal block (14) is fixedly connected to the bottom of the fixed plate (15). The bottom of the return spring (16) is movably connected to the top of the auxiliary plate (10).

4. The multi-layer composite air filter element according to claim 1, characterized in that: The limiting mechanism includes annular grooves (17) respectively opened on the top and bottom of the auxiliary plate (10), and limiting frames (18) are fixedly connected to the top and bottom of the housing (1), with the inner side of the limiting frame (18) extending into the interior of the annular groove (17).

5. A multi-layer composite air filter element according to claim 2, characterized in that: The surface of the rotating handle (13) is provided with a mounting groove (19) located at the bottom of the outer casing (1). An anti-slip rubber (20) is fixedly connected inside the mounting groove (19), and the outer side of the anti-slip rubber (20) extends to the outside of the mounting groove (19).

6. A multi-layer composite air filter element according to claim 1, characterized in that: Non-woven fabric (21) is movably connected to the outer side of the polypropylene filter element (5) and the inner side of the activated carbon filter element (6). The end of the non-woven fabric (21) away from the ceramic filter element (4) is fixedly connected to the surface and inner wall of the limiting mesh cylinder (3).

Images