An air filter with a filter cartridge that is easy to replace

Abstract

The utility model relates to air filter technical field discloses an air filter convenient to replace filter core, including air filter box and filter core, air filter box top hinged symmetry filter box door, the filter core is clamped to the mounting spare of two -sided symmetry distribution in the box, the buckle assembly of top end is constituted by fixed stop, fixed spring and telescopic link, when closing filter box door, fixed stop is pasted door body, telescopic link passes through telescopic hole, fixed spring stretches and provides pressure, ensures the sealing of box body, four center shaft symmetry fixed slide strip are established to mounting spare back, in its telescopic cavity, fixed block, mounting spring and guide connecting rod constitute installation assembly, when replacing filter core, pull guide connecting rod and compress mounting spring, make fixed block separate from guide groove, can take out mounting spare and filter core, when installing new filter core, spring reset makes fixed block insert into guide groove, realizes quick replacement, and filter sealing is reliable, and filter core replacement is convenient, and promotes use efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to an air filter with an easy-to-replace filter element. Background Technology

[0002] Air filters, as devices used to purify the air, intercept and adsorb pollutants such as dust, particles, and harmful gases in the air through filter media. They are widely used in industrial production, commercial venues, and home life. In industrial production, high-precision air filtration can ensure that electronic component manufacturing, pharmaceutical production, and other processes are not contaminated, thus improving product quality. In daily life, it can improve indoor air quality and reduce the threats to human health posed by allergens, viruses, and bacteria. Therefore, reliable and efficient air filters are key to maintaining a good air environment.

[0003] However, traditional air filters have drawbacks in practical use. On the one hand, the process of replacing the filter element is complicated and cumbersome, often requiring the use of professional tools to disassemble multiple parts, which is not only time-consuming and labor-intensive, but may also damage the internal structure of the filter due to improper operation. On the other hand, the sealing design of traditional filters is not perfect, and gaps are easy to appear between the filter box door and the box body, causing unfiltered air to directly enter the air outlet, reducing the filtration effect and affecting air quality. Therefore, we have proposed an air filter that is easy to replace the filter element. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an air filter with an easy-to-replace filter element, thus solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air filter with an easy-to-replace filter element, comprising: An air filter box and a filter element are provided. The top of the air filter box is hinged with symmetrically distributed filter box doors. The interior sides of the air filter box are provided with symmetrically distributed mounting parts, and a filter element is provided between two mounting parts. The filter element is located inside the air filter box. A latching assembly is provided at the top end of the air filter box. The latching assembly includes a fixing block, a fixing spring, and a telescopic rod. The fixing block fits snugly against the filter box door. The mounting components are arranged on both sides of the back of the mounting part. The mounting components include a fixing block, a mounting spring and a guide connecting rod. A fixing slide is fixed on the back of the mounting part. The fixing block and the mounting spring are arranged inside the fixing slide.

[0006] Preferably, the top of the air filter box is provided with a placement groove, and symmetrically distributed filter box doors are hinged in the placement groove. Symmetrically distributed telescopic rods are fixed on the back of the fixed block, and fixed springs are sleeved on the telescopic rods.

[0007] Preferably, the top end of the air filter box has symmetrically distributed telescopic holes, the telescopic rod passes through the telescopic holes, the fixed stop is set at the top of the filter box door and fits snugly, the end of the air filter box is provided with a back plate, and the fixed spring is set between the fixed stop and the back plate.

[0008] Preferably, the back of the mounting component is fixed with four centrally symmetrical fixed slide bars, the ends of which are fixed with connecting plates, and the center of the back of the mounting component is provided with a circular positioning cylinder.

[0009] Preferably, the filter element is disposed between two mounting components, and the two ends of the filter element are respectively inserted into the interior of the positioning cylinder. The two mounting components are fixedly connected by a connecting plate at the end of the fixed slide bar and a screw.

[0010] Preferably, the fixed slide bar has a telescopic cavity inside, and the telescopic cavity passes through one end of the fixed slide bar. The mounting assembly consists of a fixed block, a mounting spring, and a guide connecting rod. The back of the fixed block is provided with symmetrically distributed mounting springs. The fixed block and the mounting springs are disposed inside the telescopic cavity and slide, wherein the front end of the fixed block passes through the front end face of the mounting component.

[0011] Preferably, a connecting block is fixed to one end of the fixing block, and the connecting block slides through one end of the fixing slide. The fixing blocks on both sides of the back of the mounting component are fixedly connected by a guide connecting rod passing through the connecting block. The connecting block is located on the outside of the fixing slide.

[0012] Preferably, the air filter box has symmetrically distributed guide grooves at its front and rear ends, and the mounting parts and filter elements are disposed inside the air filter box, wherein the front end of the fixing block slides in cooperation with the guide grooves.

[0013] Compared with the prior art, this utility model provides an air filter with an easy-to-replace filter element, which has the following beneficial effects: 1. This air filter, which facilitates filter replacement, features a snap-fit ​​assembly at the top end of the air filter box. When the filter box door is closed, the fixed block fits against the door, the telescopic rod passes through the telescopic hole, and the fixed spring is stretched, providing continuous pressure to the fixed block. This effectively prevents unfiltered air from escaping through gaps, ensuring high efficiency and purity of air filtration. The mounting components on both sides of the back of the mounting piece include a fixed block, a mounting spring, and a guide connecting rod. When replacing the filter, simply pull the guide connecting rod to compress the mounting spring, causing the fixed block to disengage from the guide groove, allowing easy removal of the mounting piece and filter. When installing a new filter, the spring returns to its original position, allowing the fixed block to insert into the guide groove. The operation is simple and quick, significantly reducing filter replacement time and labor costs. The mounting pieces, symmetrically distributed on both sides inside the air filter box, securely hold the filter through four symmetrically positioned sliding strips on the back. The two ends of the filter are precisely inserted into the annular positioning cylinder at the center of the back of the mounting piece, forming a tight filtration channel. This ensures a stable and reliable air filtration process and extends the filter's service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the structural breakdown of this utility model; Figure 3 This is a schematic diagram of the air filter box structure of this utility model; Figure 4 This is a schematic diagram of the installation component structure of this utility model.

[0015] In the diagram: 1. Air filter box; 2. Filter box door; 3. Fixed stop block; 4. Fixed spring; 5. Telescopic rod; 6. Filter element; 7. Mounting component; 8. Fixed slide bar; 9. Fixed block; 10. Mounting spring; 11. Guide connecting rod; 12. Connecting block; 13. Screw; 14. Telescopic hole; 15. Guide groove; 16. Connecting plate; 17. Telescopic cavity; 18. Positioning cylinder. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 An air filter that facilitates filter element replacement includes: Air filter box 1 and filter element 6. The top of the air filter box 1 is hinged with symmetrically distributed filter box doors 2. The interior sides of the air filter box 1 are provided with symmetrically distributed mounting parts 7, and the filter element 6 is provided between two mounting parts 7. The filter element 6 is located inside the air filter box 1. A latching assembly is provided at the top end of the air filter box 1. The latching assembly includes a fixing block 3, a fixing spring 4, and a telescopic rod 5. The fixing block 3 fits snugly against the filter box door 2. The mounting components are provided on both sides of the back of the mounting component 7. The mounting components include a fixing block 9, a mounting spring 10 and a guide connecting rod 11. A fixing slide bar 8 is fixed on the back of the mounting component 7. The fixing block 9 and the mounting spring 10 are located inside the fixing slide bar 8.

[0018] Furthermore, the top of the air filter box 1 is provided with a placement groove, and symmetrically distributed filter box doors 2 are hinged and fitted in the placement groove. Symmetrically distributed telescopic rods 5 are fixed on the back of the fixing block 3, and a fixing spring 4 is sleeved on the telescopic rod 5, providing a structural basis for the sealing function of the buckle assembly.

[0019] Furthermore, the top end of the air filter box 1 is provided with symmetrically distributed telescopic holes 14, through which the telescopic rod 5 passes. The fixed block 3 is set on the top of the filter box door 2 and fits snugly. The end of the air filter box 1 is provided with a back plate, and the fixed spring 4 is set between the fixed block 3 and the back plate. This clarifies the principle that the buckle assembly achieves a seal by stretching the fixed spring 4 to tightly close the filter box door 2.

[0020] Furthermore, four centrally symmetrical fixing slides 8 are fixed on the back of the mounting component 7, and a connecting plate 16 is fixed at the end of the fixing slides 8. A circular positioning cylinder 18 is provided at the center of the back of the mounting component 7 to provide a positioning and support structure for the installation of the filter element 6.

[0021] Furthermore, the filter element 6 is positioned between the two mounting pieces 7, and the two ends of the filter element 6 are respectively inserted into the positioning cylinder 18. The two mounting pieces 7 are fixedly connected by the connecting plate 16 at the end of the fixed slide bar 8 and the screw 13 to ensure that the filter element 6 is securely installed.

[0022] Furthermore, the fixed slide bar 8 has a telescopic cavity 17 inside, and the telescopic cavity 17 passes through one end of the fixed slide bar 8. The mounting assembly consists of a fixed block 9, a mounting spring 10, and a guide connecting rod 11. The back of the fixed block 9 is provided with symmetrically distributed mounting springs 10. The fixed block 9 and the mounting springs 10 are set inside the telescopic cavity 17 and slide. The front end of the fixed block 9 passes through the front end face of the mounting component 7, providing an internal structure for the convenient replacement of the filter element 6.

[0023] Furthermore, a connecting block 12 is fixed to one end of the fixing block 9. The connecting block 12 slides through one end of the fixing slide bar 8. The fixing blocks 9 on both sides of the back of the mounting part 7 are fixedly connected by a guide connecting rod 11 passing through the connecting block 12. The connecting block 12 is located on the outside of the fixing slide bar 8. When the guide connecting rod 11 is pulled, the fixing block 9 is moved, thereby realizing the replacement of the filter element 6.

[0024] Furthermore, the air filter box 1 has symmetrically distributed guide grooves 15 at its front and rear ends. The mounting parts 7 and the filter element 6 are installed inside the air filter box 1. The front end of the fixing block 9 slides in conjunction with the guide groove 15 to form a complete structure for the installation, fixing and replacement of the filter element 6.

[0025] Structural Description: Air filter box 1: Air filter box 1 is the main body of the equipment. The filter element 6 is installed inside. The filter box door 2 is hinged at the top and a buckle assembly is provided at the top end. Filter box door 2: Filter box door 2 is symmetrically distributed and hinged to the top slot of air filter box 1. When closed, it fits against the fixed block 3 to achieve a sealed box. Fixed block 3: Fixed block 3 fits snugly with filter box door 2, and telescopic rod 5 is fixed on the back. The pressure of fixed spring 4 ensures that filter box door 2 is tightly closed. Fixed spring 4: Fixed spring 4 is sleeved on telescopic rod 5 and is set between fixed block 3 and back plate. When stretched, it provides continuous pressure to fixed block 3 to facilitate fixing filter box door 2; Telescopic rod 5: The telescopic rod 5 is symmetrically distributed on the back of the fixed block 3, passes through the telescopic hole 14 at the top of the air filter box 1, and is linked to the fixed block 3 to achieve a seal; Filter element 6: Filter element 6 is located between two mounting parts 7, and its two ends are inserted into the positioning cylinder 18 to intercept impurities in the air; Mounting component 7: Mounting component 7 is symmetrically distributed on both sides of the inside of the air filter box 1. The back has a fixing slide 8 and a positioning cylinder 18 for clamping the filter element 6. Fixed slide bar 8: Fixed slide bar 8 is fixed to the back of mounting part 7, with a connecting plate 16 at the end and a telescopic cavity 17 inside for connecting mounting components; Fixed block 9: Fixed block 9 is located in the telescopic cavity 17 of fixed slide bar 8, and its front end is slidably engaged with guide groove 15, so it can be moved when replacing filter element 6; Spring 10: Spring 10 is installed in the telescopic cavity 17 of fixed slide bar 8 and connected to fixed block 9. When resetting, it pushes fixed block 9 to insert into guide groove 15. Guide connecting rod 11: The guide connecting rod 11 passes through the connecting block 12 and is fixedly connected to the fixing blocks 9 on both sides. When pulled, it causes the fixing blocks 9 to compress the mounting spring 10. Connecting block 12: The connecting block 12 is fixed to one end of the fixed block 9 and slides through the fixed slide bar 8 to connect the guide connecting rod 11 and the fixed block 9. Screw 13: Screw 13 works with the end connecting plate 16 of the fixed slide bar 8 to fix the two mounting parts 7 and ensure that the filter element 6 is installed firmly; Telescopic holes 14: Telescopic holes 14 are symmetrically distributed at the top end of the air filter box 1, through which the telescopic rod 5 passes to realize the telescopic movement of the fixed block 3; Guide groove 15: The guide groove 15 is symmetrically distributed at the front and rear ends inside the air filter box 1, and slides with the front end of the fixed block 9 to guide the movement of the mounting part 7; Connecting plate 16: The connecting plate 16 is fixed to the end of the fixed slide bar 8 and is connected to two mounting parts 7 by screw 13 to fix the installation position of the filter element 6; Telescopic cavity 17: Telescopic cavity 17 passes through one end of fixed slide bar 8, and a fixed block 9 and a spring 10 are installed inside, providing sliding space for fixed block 9; Positioning cylinder 18: The positioning cylinder 18 is in the shape of a ring and is located at the center of the back of the mounting part 7. It is inserted and matched with both ends of the filter element 6 to accurately position the filter element 6.

[0026] Working Principle: When the air filter starts working, outside air enters the air filter box 1 through the air inlet. The mounting pieces 7, symmetrically distributed on both sides inside the air filter box 1, securely hold the filter element 6 in the middle via four symmetrically positioned sliding strips 8 on the back. Both ends of the filter element 6 are precisely inserted into the annular positioning cylinder 18 at the center of the back of the mounting piece 7, forming a tight filtration channel. Under the pressure inside the box, air passes through the filter medium of the filter element 6, intercepting dust, particles, and other impurities. Clean air continues to flow through the filter element 6 and exits from the air outlet of the air filter box 1, completing one filtration cycle. The snap-fit ​​assembly at the top end of the air filter box 1 plays a crucial role in ensuring the airtightness of the filter box. Symmetrically distributed filter box doors 2 are hinged in the placement slot at the top of the air filter box 1. When the filter box doors 2 are closed, the fixing block 3 fits against the filter box doors 2. The symmetrical telescopic rods 5 on the back of the fixing block 3 pass through the telescopic holes 14 at the top end of the air filter box 1. The fixing springs 4 sleeved on the telescopic rods 5 are stretched, and the fixing springs 4... Positioned between the fixed stop 3 and the end back plate of the air filter box 1, it provides continuous pressure to the fixed stop 3, ensuring that the filter box door 2 is tightly closed and preventing unfiltered air from escaping through gaps. The convenient replacement of the filter element 6 is facilitated by the mounting components on both sides of the back of the mounting piece 7. The fixing block 9, mounting spring 10, and guide connecting rod 11 in the mounting components work together. The fixing block 9 and mounting spring 10 are located in the telescopic cavity 17 inside the fixed slide bar 8. The fixing block 9 can slide within the telescopic cavity 17. When it is necessary to replace the filter element 6... When the guide connecting rod 11 is pulled, the fixing block 9 moves into the telescopic cavity 17, and the mounting spring 10 is compressed. At this time, the front end of the fixing block 9 is disengaged from the guide grooves 15 at the front and rear ends inside the air filter box 1, and the mounting part 7 is unrestrained. The mounting part 7 and the filter element 6 can be taken out as a whole along the guide groove 15. After replacing the new filter element, the mounting part 7 is pushed in along the guide groove 15. When the fixing block 9 reaches the corresponding position of the guide groove 15, the mounting spring 10 is reset, pushing the fixing block 9 into the guide groove 15, thus completing the quick installation of the filter element 6.

[0027] 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. An air filter facilitating replacement of a filter cartridge, characterized by, include: An air filter box (1) and a filter element (6) are provided. The top of the air filter box (1) is hinged with symmetrically distributed filter box doors (2). The interior sides of the air filter box (1) are provided with symmetrically distributed mounting parts (7), and a filter element (6) is provided between two mounting parts (7). The filter element (6) is located inside the air filter box (1). A buckle assembly is provided at the top end of the air filter box (1). The buckle assembly includes a fixing block (3), a fixing spring (4), and a telescopic rod (5). The fixing block (3) fits snugly against the filter box door (2). The mounting components are provided on both sides of the back of the mounting part (7). The mounting components include a fixing block (9), a mounting spring (10) and a guide connecting rod (11). A fixing slide (8) is fixed on the back of the mounting part (7). The fixing block (9) and the mounting spring (10) are located inside the fixing slide (8).

2. The air filter of claim 1, wherein, The top of the air filter box (1) is provided with a placement slot, and the placement slot is hinged with symmetrically distributed filter box doors (2). The back of the fixed block (3) is fixed with symmetrically distributed telescopic rods (5), and a fixed spring (4) is sleeved on the telescopic rods (5).

3. An air filter with an easily replaceable filter element according to claim 2, characterized in that, The air filter box (1) has symmetrically distributed telescopic holes (14) at its top end. The telescopic rod (5) passes through the telescopic holes (14). The fixed block (3) is set on the top of the filter box door (2) and fits snugly. The air filter box (1) has a back plate at its end. The fixed spring (4) is set between the fixed block (3) and the back plate.

4. An air filter with an easily replaceable filter element according to claim 1, characterized in that, The back of the mounting component (7) is fixed with four central axis symmetrical fixed slide bars (8), and the ends of the fixed slide bars (8) are fixed with connecting plates (16). The center of the back of the mounting component (7) is provided with a circular positioning cylinder (18).

5. An air filter with an easily replaceable filter element according to claim 4, characterized in that, The filter element (6) is disposed between two mounting parts (7), and the two ends of the filter element (6) are respectively inserted into the positioning cylinder (18). The two mounting parts (7) are fixedly connected by the connecting plate (16) at the end of the fixed slide (8) and the screw (13).

6. An air filter with an easily replaceable filter element according to claim 5, characterized in that, The fixed slide bar (8) has a telescopic cavity (17) inside, and the telescopic cavity (17) passes through one end of the fixed slide bar (8). The mounting assembly consists of a fixed block (9), a mounting spring (10) and a guide connecting rod (11). The back of the fixed block (9) is provided with symmetrically distributed mounting springs (10). The fixed block (9) and the mounting springs (10) are set inside the telescopic cavity (17) and slide. The front end of the fixed block (9) passes through the front end face of the mounting component (7).

7. An air filter with an easily replaceable filter element according to claim 6, characterized in that, One end of the fixing block (9) is fixed with a connecting block (12). The connecting block (12) slides through one end of the fixing slide (8). The fixing blocks (9) on both sides of the back of the mounting part (7) are fixed by a guide connecting rod (11) passing through the connecting block (12). The connecting block (12) is located on the outside of the fixing slide (8).

8. An air filter with an easily replaceable filter element according to claim 7, characterized in that, The air filter box (1) has symmetrically distributed guide grooves (15) at its front and rear ends. The mounting part (7) and the filter element (6) are located inside the air filter box (1), and the front end of the fixing block (9) is slidably engaged with the guide groove (15).

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