Air formaldehyde purifier special filter core
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]现有的滤芯在使用过程中,虽然能够起到对甲醛进行吸收的效果,但现有的滤芯在拆装过程中需要使用者拆卸多个螺丝或者连接结构以完成滤芯的拆装作业,从而降低了使用者对滤芯的拆装以及维护效率,为此我们提出了一种空气甲醛净化器专用滤芯
[0014] 1. This air formaldehyde purifier filter cartridge features a base, limiting ring, top cover, groove, connecting plate, mounting slot, baffle, strong magnet one, strong magnet two, connecting ring one, and connecting ring two. During use, the user can rotate the top cover to allow strong magnet one and strong magnet two to adhere to each other, facilitating easy disassembly and assembly of the top cover and the filter cartridge components. This improves the user's efficiency in disassembly, assembly, and maintenance of the filter cartridge.
Smart Images

Figure CN224613454U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of formaldehyde filter technology, specifically a filter for air formaldehyde purifiers. Background Technology
[0002] The filter is an important component of an air purifier. The main function of air purifiers in current technology is to adsorb, decompose, or transform various air pollutants, such as formaldehyde and dust from indoor decoration.
[0003] While existing filter cartridges can effectively absorb formaldehyde during use, they require users to remove multiple screws or connecting structures during installation and removal, thus reducing the efficiency of filter installation, removal, and maintenance. To address this, we have proposed a special filter cartridge for air formaldehyde purifiers. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a special filter element for air formaldehyde purifiers, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a special filter element for an air formaldehyde purifier, comprising a base, a limiting ring fixedly mounted on the top of the base, a protective net provided on the inner wall of the limiting ring, grooves provided at both ends of the protective net, a fiber layer tightly attached to the inner wall of the protective net, a filter screen two tightly attached to the inner wall of the fiber layer, and a top cover provided on the top of the protective net, the fiber layer, and the filter screen two. A connecting ring and a straight rod are fixedly mounted on the top of the base, a connecting plate is fixedly mounted on the top of the straight rod, an installation groove and an air outlet groove are provided on the top of the connecting plate, a baffle and a strong magnet are fixedly mounted on the inner wall of the installation groove, an ultraviolet lamp is fixedly mounted on the bottom of the connecting plate, a connecting ring and an L-shaped rod are fixedly mounted on the bottom of the top cover, a strong magnet two is fixedly mounted on the outer wall of the L-shaped rod, a mounting seat is provided on the inner wall of the connecting ring, a filter screen one is fixedly mounted on the inner wall of the mounting seat, and a screw is provided on the outer wall of the mounting seat.
[0006] As a preferred embodiment of this utility model, the outer wall of the connecting ring is provided with a through hole, and the inner wall of the through hole is threadedly connected to the outer wall of the screw.
[0007] As a preferred embodiment of this utility model, the bottom of the filter screen is tightly fitted to the top of the connecting plate, and the base is connected to the outside world through the filter screen.
[0008] As a preferred embodiment of this utility model, the number of straight rods is two, and both straight rods are symmetrically distributed along the top of the base.
[0009] As a preferred embodiment of this utility model, the gap between the baffle and the mounting groove is adapted to the diameter of the L-shaped rod, and the bottom of the baffle is slidably connected to the outer wall of the L-shaped rod.
[0010] In a preferred embodiment of this utility model, the first strong magnet and the second strong magnet are attracted to each other by opposite polarities, and the L-shaped rod is fixedly connected to the connecting plate through the second strong magnet.
[0011] As a preferred embodiment of this utility model, the shape of the limiting ring is adapted to the shape of the groove, and there are two limiting rings, with the top of the other limiting ring being fixedly assembled with the bottom of the top cover.
[0012] As a preferred technical solution of this utility model, both filter screen one and filter screen two are made of activated carbon layer, and a circular groove is opened at the bottom of filter screen two, and the diameter of the circular groove is adapted to the diameter of the docking ring.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This air formaldehyde purifier filter cartridge features a base, limiting ring, top cover, groove, connecting plate, mounting slot, baffle, strong magnet one, strong magnet two, connecting ring one, and connecting ring two. During use, the user can rotate the top cover to allow strong magnet one and strong magnet two to adhere to each other, facilitating easy disassembly and assembly of the top cover and the filter cartridge components. This improves the user's efficiency in disassembly, assembly, and maintenance of the filter cartridge.
[0015] 2. This air formaldehyde purifier's special filter cartridge, through its set of filter screen one, filter screen two, ultraviolet lamp, and straight rod structure, can separately perform adsorption and sterilization of impurities, dust, and formaldehyde during operation. Both filter screen one and filter screen two can absorb formaldehyde, thus achieving dual-position formaldehyde absorption, avoiding the situation of large amounts of formaldehyde residue, and thereby improving the formaldehyde absorption effect of the filter cartridge. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a side sectional view of the present invention.
[0018] Figure 3 This is a schematic diagram of the air outlet groove structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the straight rod structure of this utility model;
[0020] Figure 5This is a schematic diagram of the connecting ring structure of this utility model.
[0021] In the diagram: 1. Base; 2. Limiting ring; 3. Protective net; 4. Top cover; 5. Filter screen one; 6. Fiber layer; 7. Filter screen two; 8. Groove; 9. Connecting plate; 10. Mounting slot; 11. Baffle; 12. Strong magnet one; 13. Air outlet slot; 14. Connecting ring one; 15. Connecting ring; 16. Ultraviolet lamp; 17. Straight rod; 18. L-shaped rod; 19. Strong magnet two; 20. Screw; 21. Mounting base. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-5 A filter element for an air formaldehyde purifier includes a base 1. A limiting ring 2 is fixedly mounted on the top of the base 1. A protective net 3 is provided on the inner wall of the limiting ring 2. Grooves 8 are provided at both ends of the protective net 3. A fiber layer 6 is tightly attached to the inner wall of the protective net 3. A filter screen 7 is tightly attached to the inner wall of the fiber layer 6. A top cover 4 is provided on the top of the protective net 3, the fiber layer 6, and the filter screen 7. A connecting ring 15 and a straight rod 17 are fixedly mounted on the top of the base 1, respectively. A connecting plate 9 is fixedly mounted on the top of the straight rod 17. The top of the connecting plate 9 is provided with a mounting groove 10 and an air outlet groove 13. The inner wall of the mounting groove 10 is fixedly fitted with a baffle 11 and a strong magnet 12. The bottom of the connecting plate 9 is fixedly fitted with an ultraviolet lamp 16. The bottom of the top cover 4 is fixedly fitted with a connecting ring 14 and an L-shaped rod 18. The outer wall of the L-shaped rod 18 is fixedly fitted with a strong magnet 19. The inner wall of the connecting ring 14 is provided with a mounting seat 21. The inner wall of the mounting seat 21 is fixedly fitted with a filter screen 5. The outer wall of the mounting seat 21 is provided with screws 20.
[0024] In the above structure, the base 1, limiting ring 2, protective net 3, top cover 4, filter screen 5, fiber layer 6, filter screen 7, groove 8, connecting plate 9, mounting groove 10, baffle 11, and strong magnet 12 are designed so that during use, the user can forcefully rotate the top cover 4 to separate the strong magnet 12 from the L-shaped rod 18. This allows the user to continuously rotate the top cover 4 to disengage the L-shaped rod 18 from the mounting groove 10, facilitating the user's disassembly and assembly of the filter element assembly. After removing the top cover 4, the user can directly pick up the filter screen 7 to complete the disassembly and assembly of the filter screen 7. The user can also disassemble and assemble the filter screen 5 by rotating the screw 20, thereby improving the user's maintenance and disassembly efficiency for the filter element.
[0025] In a preferred embodiment, the outer wall of the connecting ring 14 has a through hole, and the inner wall of the through hole is threadedly connected to the outer wall of the screw 20.
[0026] In the above structure, the through holes and screws 20 allow the user to remove each component simply by rotating the top cover 4 and screws 20 during the disassembly and assembly process, thus simplifying the disassembly and assembly process and making the filter element simple in structure and easy to maintain.
[0027] In a preferred embodiment, the bottom of the filter screen 5 is tightly fitted to the top of the connecting plate 9, and the base 1 is connected to the outside world through the filter screen 5.
[0028] In the above structure, the filter element can not only initially adsorb formaldehyde in the air through the filter element 7, but also further absorb impurities and formaldehyde in the air when the air is discharged, thereby preventing residual formaldehyde from being discharged into the room, thus improving the adsorption effect of the filter element on formaldehyde.
[0029] In a preferred embodiment, there are two straight rods 17, and both straight rods 17 are symmetrically distributed along the top of the base 1.
[0030] In the above structure, the two straight rods 17 are used to support the connecting plate 9, thereby ensuring that the connecting plate 9 will not tilt after the filter element is installed. This ensures that the connecting plate 9 can stably connect the base 1 and the top cover 4, thus improving the stability of the filter element after installation.
[0031] In a preferred embodiment, the gap between the baffle 11 and the mounting groove 10 is adapted to the diameter of the L-shaped rod 18, and the bottom of the baffle 11 is slidably connected to the outer wall of the L-shaped rod 18.
[0032] In the above structure, through the baffle 11 and L-shaped rod 18, after the protective net 3, fiber layer 6 and filter screen 7 are all installed on the base 1, the user can directly place the top cover 4 on top of the three, and then rotate the top cover 4 to make the L-shaped rod 18 slide along the inner wall of the mounting groove 10. Due to the limiting effect of the baffle 11, the L-shaped rod 18 cannot be separated from the mounting groove 10, thereby fixing the L-shaped rod 18 in conjunction with the attraction between the strong magnet 2 19 and the strong magnet 12, thus achieving the effect of making it easy for the user to disassemble and assemble the top cover 4.
[0033] In a preferred embodiment, strong magnet 12 and strong magnet 19 are attracted to each other by opposite polarities, and L-shaped rod 18 is fixedly connected to connecting plate 9 through strong magnet 19.
[0034] In the above structure, the strong magnet 12 and strong magnet 19 are designed to ensure that the top cover 4 will not become loose after installation by utilizing the attraction between opposite poles. This also makes it convenient for users to disassemble and assemble the top cover 4, further simplifying the disassembly and assembly process and structure of the filter element.
[0035] In a preferred embodiment, the shape of the limiting ring 2 is adapted to the shape of the groove 8, and there are two limiting rings 2, with the top of the other limiting ring 2 fixedly assembled to the bottom of the top cover 4.
[0036] In the above structure, the two limiting rings 2 are set so that after the protective net 3 is installed on the base 1, the top cover 4 is connected to the base 1 and the limiting rings 2 on the top cover 4 are used to limit the top of the protective net 3, thereby avoiding the situation that the two ends of the protective net 3 cannot be aligned or even the position is offset, thus improving the stability of the protective net 3.
[0037] In a preferred embodiment, both filter screen 5 and filter screen 7 are made of activated carbon layers. The bottom of filter screen 7 has a circular groove, and the diameter of the circular groove is adapted to the diameter of the docking ring 15.
[0038] In the above structure, the activated carbon layer can effectively adsorb formaldehyde, so that the filter can absorb formaldehyde in the indoor air during operation, thereby purifying the air and ensuring the cleanliness of the indoor air.
[0039] Working principle: First, when installing the filter element, the user can install the protective net 3, fiber layer 6, and filter screen 7 onto the base 1. Due to the limiting ring 2's limiting effect on the protective net 3 and the docking ring 15's limiting effect on the filter screen 7, they can all be placed on the base 1. The fiber layer 6 can also be placed on the base 1 due to the positioning effect of the protective net 3 and filter screen 7. At this time, the user can align the L-shaped rod 18 on the top cover 4 with the gap between the mounting groove 10 and the baffle 11, and then rotate the top cover 4 so that the outer wall of the L-shaped rod 18 slides along the bottom of the baffle 11 until the strong magnet 19 and the strong magnet 12 are in contact. The L-shaped rod 18, due to the two... The attraction between the filters is fixed, thus connecting the top cover 4 and the base 1 to complete the assembly of the entire filter element. This improves the efficiency of the user in disassembling, assembling, and maintaining the filter element. During operation, the protective net 3 is used to initially filter free-floating insect carcasses and larger debris. Then, the fiber layer 6 filters dust. Formaldehyde in the air is adsorbed by the first filter 5 and the second filter 7 respectively. Finally, the ultraviolet lamp 16 is used to kill viruses and bacteria in the air, thereby achieving the effect of dual absorption and purification of formaldehyde, thus improving the formaldehyde absorption capacity of the filter element.
[0040] 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 filter element specifically for air formaldehyde purifiers, characterized in that, Includes a base (1), the top of which is fixedly fitted with a limiting ring (2), the inner wall of which is provided with a protective net (3), both ends of which are provided with grooves (8), the inner wall of which is tightly fitted with a fiber layer (6), the inner wall of which is tightly fitted with a filter screen (7), the top of which is provided with a top cover (4), the top of which is provided with a connecting ring (15) and a straight rod (17), respectively fixedly fitted with a connecting plate (9), the top of which is fixedly fitted with a connecting plate (9). The top of the 9) is provided with an installation groove (10) and an air outlet groove (13). The inner wall of the installation groove (10) is fixedly fitted with a baffle (11) and a strong magnet (12). The bottom of the connecting plate (9) is fixedly fitted with an ultraviolet lamp (16). The bottom of the top cover (4) is fixedly fitted with a connecting ring (14) and an L-shaped rod (18). The outer wall of the L-shaped rod (18) is fixedly fitted with a strong magnet (19). The inner wall of the connecting ring (14) is provided with a mounting seat (21). The inner wall of the mounting seat (21) is fixedly fitted with a filter screen (5). The outer wall of the mounting seat (21) is provided with screws (20).
2. The air formaldehyde purifier filter element according to claim 1, characterized in that, The outer wall of the connecting ring (14) has a through hole, and the inner wall of the through hole is threadedly connected to the outer wall of the screw (20).
3. The air formaldehyde purifier filter element according to claim 1, characterized in that, The bottom of the filter screen (5) is tightly fitted to the top of the connecting plate (9), and the base (1) is connected to the outside world through the filter screen (5).
4. The air formaldehyde purifier filter element according to claim 1, characterized in that, The number of straight rods (17) is two, and both straight rods (17) are symmetrically distributed along the top of the base (1).
5. The air formaldehyde purifier filter element according to claim 1, characterized in that, The gap between the baffle (11) and the mounting groove (10) is adapted to the diameter of the L-shaped rod (18), and the bottom of the baffle (11) is slidably connected to the outer wall of the L-shaped rod (18).
6. The air formaldehyde purifier filter element according to claim 1, characterized in that, The strong magnet one (12) and the strong magnet two (19) are attracted to each other by opposite polarities, and the L-shaped rod (18) is fixedly connected to the connecting plate (9) through the strong magnet two (19).
7. The air formaldehyde purifier filter element according to claim 1, characterized in that, The shape of the limiting ring (2) is adapted to the shape of the groove (8). There are two limiting rings (2), and the top of the other limiting ring (2) is fixedly assembled with the bottom of the top cover (4).
8. The air formaldehyde purifier filter element according to claim 1, characterized in that, Both filter screen one (5) and filter screen two (7) are made of activated carbon layer. The bottom of filter screen two (7) has a circular groove, and the diameter of the circular groove is adapted to the diameter of the docking ring (15).