Filter screen structure for air purifier

Abstract

The utility model relates to the technical field of air filtration, and discloses a filter screen structure for an air purifier, which comprises a filter screen main body, the filter screen main body comprises a surface cover and a bottom cover, and filter cotton and a galvanized mesh are arranged between the surface cover and the bottom cover; the telescopic bracket assembly comprises two groups of connecting rods and mounting seats; and the limiting assembly comprises a limiting plate and a gear, the limiting plate is in a T shape, and the bottom end of the limiting plate is in a sharp shape. The surface cover, the bottom cover, the filter cotton and the galvanized net are arranged to form the filter screen main body, original paper frame and clamping groove fixing is omitted, hidden dangers caused by clamping groove slipping are eliminated, the filter screen main body is used in cooperation with the telescopic support assembly, the assembly time is shortened, the labor cost is saved, the filter screen stability is higher, and the service life is prolonged; by arranging the limiting assembly, the height of the filter screen can be adjusted in multiple ways, and the applicability is wider.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, and in particular to a filter structure for an air purifier. Background Technology

[0002] The filter is one of the core components of an air purifier. Its main function is to filter and purify various pollutants in the air, including particulate matter, dust, pollen, smoke, bacteria, viruses, and harmful gases.

[0003] Currently, some filters in existing technologies use slots or cardboard frames to fix their height, which takes a long time to assemble, is prone to slipping, and lacks stability. In addition, the height of such filters is usually fixed and cannot be adjusted, so they can only be used in specific models and cannot be used in other models of the same brand, which limits their compatibility.

[0004] Therefore, those skilled in the art have provided a filter structure for an air purifier to solve the problems mentioned in the background art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a filter structure for air purifiers, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air purifier filter structure includes: a filter body comprising a front cover and a bottom cover, with filter cotton and galvanized mesh disposed between the front cover and the bottom cover; a telescopic bracket assembly disposed between the front cover and the bottom cover, comprising multiple telescopic bracket assemblies located on the front and rear sides of the front and bottom covers, each telescopic bracket assembly including two sets of connecting rods and a mounting base, the two sets of connecting rods being movably connected; and a limiting component, wherein a rectangular groove is formed at the front end of the mounting base, a movable groove is formed on the rectangular groove, a limiting cavity is formed within the movable groove, the limiting component is disposed within the limiting cavity, and a toggle rod is movably engaged within the movable groove, the movement of the toggle rod synchronously driving the limiting component to move; the limiting component includes a limiting plate and a gear, the limiting plate being T-shaped with a pointed bottom end.

[0008] According to the air purifier filter structure, the mounting base is fixedly installed with the corresponding front cover and bottom cover by screws, and the two connecting rods are movably connected by a pin. One set of connecting rods is provided with a limiting protrusion at one end near the pin, and the other set of connecting rods is provided with a notch at one end near the pin, and the limiting protrusion can be movably engaged in the notch.

[0009] According to the air purifier filter structure, a rotating shaft is fixedly connected to one end of the connecting rod near the mounting base. The rotating shaft moves through the mounting base, and a gear is fixedly passed through the outer wall of the rotating shaft within the limiting cavity.

[0010] According to the air purifier filter structure, the limiting component also includes a limiting guide rod fixedly installed at the top of the limiting cavity. There are two limiting guide rods, and the bottom ends of the two limiting guide rods movably pass through both ends of the T-shape of the limiting plate.

[0011] According to the air purifier filter structure, a compression spring is fitted on the outer wall of the limiting guide rod, and the compression spring is located above the limiting plate.

[0012] According to the air purifier filter structure, the end of the actuating rod away from the limiting plate is provided with a locking groove, and a cover plate is movably locked in the rectangular groove.

[0013] According to the air purifier filter structure, a locking block is fixedly connected to the side of the cover plate near the lever, and the locking block can be inserted into the locking groove.

[0014] This invention provides a filter structure for an air purifier. It has the following beneficial effects:

[0015] (1) This application uses a face cover, a bottom cover, filter cotton and galvanized mesh to form the main body of the filter screen, eliminating the original use of paper frame and card slot for fixing, eliminating the hidden danger caused by card slot slippage. The filter screen main body is used in conjunction with the telescopic bracket assembly, which speeds up the assembly time, saves labor costs, makes the filter screen more stable and extends its service life. By setting the limit component, the height of the filter screen can be adjusted in multiple ways, making it more applicable.

[0016] (2) By setting the rotating shaft and connecting rod to be fixedly connected, the rotating shaft moves through the mounting base, and the outer wall of the rotating shaft is fixedly through the gear in the limiting cavity. When the rotating shaft rotates, the gear also rotates. By limiting the rotation of the gear, the rotating shaft is locked.

[0017] (3) After confirming the height that the cover needs to be adjusted, the installer pulls the lever by hand to move the limit plate downward to limit and lock the gear. A locking groove is set at the end of the lever away from the limit plate. The cover plate is movable in the rectangular groove. A locking block is fixedly connected to the side of the cover plate near the lever. The locking block is inserted into the locking groove to limit the lever and thus restrict the rotation of the gear. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a filter screen structure for an air purifier according to the present invention. Figure 1 ;

[0019] Figure 2 This is a three-dimensional structural diagram of a filter screen structure for an air purifier according to the present invention. Figure 2 ;

[0020] Figure 3 This is a three-dimensional structural diagram of a telescopic bracket assembly for a filter screen structure in an air purifier according to the present invention.

[0021] Figure 4 This is a schematic diagram showing the connection relationship between the mounting base, rotating shaft, and cover plate of a filter structure for an air purifier according to this utility model.

[0022] Figure 5 This is a cross-sectional structural diagram of the mounting base for a filter structure of an air purifier according to the present invention.

[0023] Legend:

[0024] 10. Top cover; 11. Bottom cover; 12. Telescopic bracket assembly; 13. Filter cotton; 14. Galvanized wire mesh; 15. Connecting rod; 16. Mounting base; 17. Rotating shaft; 18. Rectangular groove; 19. Movable groove; 20. Actuating rod; 21. Cover plate; 22. Limiting cavity; 23. Gear; 24. Limiting plate; 25. Limiting guide rod; 26. Compression spring; 27. Limiting protrusion. Detailed Implementation

[0025] like Figure 1-5 As shown: A filter structure for an air purifier includes: a filter body, comprising a front cover 10 and a bottom cover 11, with filter cotton 13 and galvanized mesh 14 disposed between the front cover 10 and the bottom cover 11; and a telescopic bracket assembly 12, disposed between the front cover 10 and the bottom cover 11, wherein there are multiple telescopic bracket assemblies 12 located on the front and rear sides of the front cover 10 and the bottom cover 11, and each telescopic bracket assembly 12 includes two sets of connecting rods 15 and a mounting bracket. Mounting base 16, with two sets of connecting rods 15 connected movably; limiting assembly, the front end of mounting base 16 has a rectangular groove 18, the rectangular groove 18 has a movable groove 19, the movable groove 19 has a limiting cavity 22, the limiting assembly is set in the limiting cavity 22, the movable groove 19 has a toggle rod 20 movably engaged, the movement of the toggle rod 20 synchronously drives the limiting assembly to move; the limiting assembly includes a limiting plate 24 and a gear 23, the limiting plate 24 is T-shaped, and the bottom end of the limiting plate 24 is pointed.

[0026] Specifically, this application uses a face cover 10, a bottom cover 11, filter cotton 13, and galvanized mesh 14 to form the main body of the filter screen, eliminating the original use of paper frames and card slots for fixing, thus eliminating the potential danger caused by card slot slippage. The main body of the filter screen is used in conjunction with the telescopic bracket assembly 12, which speeds up the assembly time, saves labor costs, makes the filter screen more stable, and extends its service life. By setting a limit component, the height of the filter screen can be adjusted in multiple ways, making it more applicable.

[0027] Mounting base 16 is fixedly installed to the corresponding face cover 10 and bottom cover 11 by screws. The two connecting rods 15 are movably connected by a pin. One set of connecting rods 15 is provided with a limiting protrusion 27 at one end near the pin, and the other set of connecting rods 15 is provided with a notch at one end near the pin. The limiting protrusion 27 can be movably engaged in the notch.

[0028] Specifically, the mounting base 16 is fixedly installed to the corresponding face cover 10 and bottom cover 11 by screws. The two connecting rods 15 are movably connected by a pin. One set of connecting rods 15 is provided with a limiting protrusion 27 at one end near the pin, and the other set of connecting rods 15 is provided with a notch at one end near the pin. When the two sets of 15 are in the same straight line, the limiting protrusion 27 is movably engaged in the notch. At this time, the notch blocks the limiting protrusion 27, thereby improving the stability of the device.

[0029] A rotating shaft 17 is fixedly connected to one end of the connecting rod 15 near the mounting base 16. The rotating shaft 17 moves through the mounting base 16, and the outer wall of the rotating shaft 17 is fixedly connected to the gear 23 within the limiting cavity 22.

[0030] Specifically, by setting the rotating shaft 17 to be fixedly connected to the connecting rod 15, the rotating shaft 17 moves through the mounting base 16, and the outer wall of the rotating shaft 17 is fixedly connected to the gear 23 in the limiting cavity 22. When the rotating shaft 17 rotates, the gear 23 also rotates. By limiting the rotation of the gear 23, the rotating shaft 17 is locked.

[0031] The limiting assembly also includes two limiting guide rods 25 fixedly installed at the top of the limiting cavity 22. The bottom ends of the two limiting guide rods 25 movably pass through the two ends of the T-shape of the limiting plate 24. A compression spring 26 is sleeved on the outer wall of the limiting guide rod 25, and the compression spring 26 is located above the limiting plate 24.

[0032] Specifically, two limiting guide rods 25 are fixedly installed at the top of the limiting cavity 22. The bottom ends of the two limiting guide rods 25 movably pass through the two ends of the T-shape of the limiting plate 24. The limiting plate 24 moves up and down along the limiting guide rods 25. A compression spring 26 is sleeved on the outer wall of the limiting guide rods 25. The compression spring 26 is located above the limiting plate 24 and provides an upward pulling force to the limiting plate 24.

[0033] The end of the actuating lever 20 away from the limiting plate 24 has a locking groove, and a cover plate 21 is movably locked in the rectangular groove 18. A locking block is fixedly connected to the side of the cover plate 21 near the actuating lever 20, and the locking block can be inserted into the locking groove.

[0034] Specifically, after confirming the height that the cover 10 needs to be adjusted, the installer manually pulls the lever 20 to move the limiting plate 24 downwards to limit and lock the gear 23. By setting a locking groove at the end of the lever 20 away from the limiting plate 24, the cover plate 21 is movable and locked in the rectangular groove 18. A locking block is fixedly connected to the side of the cover plate 21 near the lever 20. The locking block is inserted into the locking groove to limit the lever 20, thereby restricting the rotation of the gear 23.

[0035] The working principle of the filter structure for an air purifier disclosed in this application is as follows: The filter body is composed of a face cover 10, a bottom cover 11, filter cotton 13, and a galvanized mesh 14, eliminating the original method of fixing with a paper frame and slots, thus eliminating the potential hazard caused by slot slippage. The filter body is used in conjunction with the telescopic bracket assembly 12. After confirming the height that the face cover 10 needs to be adjusted, the installer manually pulls the lever 20 to move the limiting plate 24 downwards, thereby limiting and locking the gear 23. A locking groove is provided at the end of the lever 20 away from the limiting plate 24, and the cover 23 is movable and locked within the rectangular groove 18. 1. A locking block is fixedly connected to the side of the cover plate 21 near the actuating rod 20. The locking block is inserted into the locking groove to limit the actuating rod 20, thereby restricting the rotation of the gear 23. A rotating shaft 17 is fixedly connected to the connecting rod 15. The rotating shaft 17 moves through the mounting base 16. The outer wall of the rotating shaft 17 is fixedly inserted through the gear 23 in the limiting cavity 22. When the rotating shaft 17 rotates, the gear 23 also rotates. By limiting the rotation of the gear 23, the rotating shaft 17 is locked. By setting the limiting component, the height of the filter screen can be adjusted in multiple ways, making it more applicable.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A filter structure for an air purifier, characterized in that, include: The filter body includes a face cover (10) and a bottom cover (11), and a filter cotton (13) and a galvanized mesh (14) are disposed between the face cover (10) and the bottom cover (11). Telescopic bracket assembly (12) is disposed between the front cover (10) and the bottom cover (11). There are multiple telescopic bracket assemblies (12), which are located on the front and rear sides of the front cover (10) and the bottom cover (11). The telescopic bracket assembly (12) includes two sets of connecting rods (15) and a mounting base (16). The two sets of connecting rods (15) are movably connected. The limiting component has a rectangular groove (18) at the front end of the mounting base (16), a movable groove (19) on the rectangular groove (18), a limiting cavity (22) in the movable groove (19), the limiting component is set in the limiting cavity (22), and a toggle rod (20) is movably engaged in the movable groove (19). The movement of the toggle rod (20) synchronously drives the limiting component to move. The limiting component includes a limiting plate (24) and a gear (23). The limiting plate (24) is T-shaped and the bottom end of the limiting plate (24) is pointed.

2. The filter structure for an air purifier according to claim 1, characterized in that: The mounting base (16) is fixedly installed with the corresponding face cover (10) and bottom cover (11) by screws. The two connecting rods (15) are movably connected by a pin. One set of connecting rods (15) has a limiting protrusion (27) at one end near the pin, and the other set of connecting rods (15) has a notch at one end near the pin. The limiting protrusion (27) can be movably engaged in the notch.

3. The filter structure for an air purifier according to claim 1, characterized in that: The connecting rod (15) is fixedly connected to a rotating shaft (17) at one end near the mounting base (16). The rotating shaft (17) moves through the mounting base (16), and the outer wall of the rotating shaft (17) is fixedly connected to a gear (23) in the limiting cavity (22).

4. The filter structure for an air purifier according to claim 1, characterized in that: The limiting assembly also includes a limiting guide rod (25) fixedly installed at the top of the limiting cavity (22). There are two limiting guide rods (25), and the bottom ends of the two limiting guide rods (25) can move through the T-shaped ends of the limiting plate (24).

5. The filter structure for an air purifier according to claim 4, characterized in that: The outer wall of the limiting guide rod (25) is fitted with a compression spring (26), which is located above the limiting plate (24).

6. The filter structure for an air purifier according to claim 1, characterized in that: The actuating rod (20) has a locking groove at one end away from the limiting plate (24), and a cover plate (21) is movably locked in the rectangular groove (18).

7. The filter structure for an air purifier according to claim 6, characterized in that: A locking block is fixedly connected to the side of the cover plate (21) near the actuating rod (20), and the locking block can be inserted into the locking groove.

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