A buckle type high sealing air filter

Abstract

The utility model relates to air filter technical field discloses a buckle type high sealing air filter, including air filter box, the air filter box top slidingly connected with seal cover, the air filter box outer wall fixedly connected with annular base, the both sides of annular base top left and right are provided with locking assembly, the locking assembly includes fixed block, the both sides of fixed block inside are slidably connected with slider, slider one side is fixedly connected with locking column, slider other side is provided with return spring, slider outer wall fixedly connected with linkage block. In the utility model, first through the sliding linkage block, make locking column separate seal cover inside hole position, can take down seal cover and install air filter plate, then return spring pushes locking column and inserts the hole position, completes the sealing, reaches the effect that high -efficient sealing air filter, solved the problem that traditional filter sealed not strictly, the problem of complicated dismounting, improved the sealing effect and maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to a snap-fit ​​type high-sealing air filter. Background Technology

[0002] In modern industry and transportation, air filters are crucial components that ensure the stable operation of engines and other equipment. Their importance is self-evident. Whether it is automobiles, construction machinery, or various industrial machinery and equipment, they all rely on air filters to filter the air entering the equipment, remove dust, particles and other impurities, and prevent these substances from causing wear and damage to the precision components inside the equipment. As the performance requirements of equipment continue to increase, higher standards are being set for the filtration effect, sealing performance and ease of maintenance of air filters, prompting the continuous development and innovation of related technologies.

[0003] Currently, most air filters on the market use bolts or simple snap-fit ​​connections to fix the filter housing and top cover in terms of structural design, and use rubber sealing rings to achieve sealing. In terms of filter element installation, they are generally fixed by using slot limiting or direct placement. The technical principle is mainly to use physical obstruction so that when air passes through the filter element, impurities are intercepted on the surface of the filter element, while clean air enters the equipment.

[0004] However, traditional air filters have defects in sealing and installation. Due to unreasonable connection structure, bolt connection is cumbersome to disassemble and assemble, consuming a lot of time and manpower. Simple snap-fit ​​connection can loosen, leading to decreased sealing performance, air leakage, and affecting filtration effect. At the same time, the filter element installation method is not stable enough, with problems such as difficult installation and easy displacement. This not only reduces the maintenance efficiency of the filter, but also allows unfiltered air to enter the equipment due to poor sealing and loose installation, accelerating equipment wear, shortening equipment lifespan, increasing maintenance costs and equipment failure risk. Therefore, a snap-fit ​​high-sealing air filter is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a snap-on high-sealing air filter, which aims to improve the problems of poor sealing and cumbersome disassembly and assembly of filters in the prior art.

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

[0007] A snap-fit ​​high-sealing air filter includes an air filter box, a sealing cover slidably connected to the top of the air filter box, a sealing strip fixedly connected to the top of the air filter box, sliding grooves on both sides of the outer wall of the sealing cover, an annular base fixedly connected to the outer wall of the air filter box, and locking components provided on the left and right sides of the top of the annular base.

[0008] The locking assembly includes a fixing block, the bottom of which is fixedly connected to the top of the annular base. The outer wall of the fixing block is slidably connected to the inner wall of the slide groove. Slider blocks are slidably connected to both sides of the interior of the fixing block. A locking post is fixedly connected to one side of each slider. A return spring is provided on the other side of each slider. One end of each return spring is fixedly connected to the interior of the fixing block, and the other end of each return spring is fixedly connected to the side wall of the slider. A linkage block is fixedly connected to the outer wall of the slider, and the linkage block is located on one side of the outer wall of the fixing block.

[0009] As a further description of the above technical solution:

[0010] The air filter box is equipped with a filter assembly inside. An air inlet pipe is fixedly connected to the bottom of the air filter box, and an air outlet pipe is fixedly connected to the top of the sealing cover.

[0011] As a further description of the above technical solution:

[0012] The filter assembly includes an air filter plate, the outer wall of which is slidably connected to the inner wall of the air filter box.

[0013] As a further description of the above technical solution:

[0014] Handles are fixedly connected to both sides of the top of the air filter plate, and the handles are used to assist in the manual installation or removal of the air filter plate.

[0015] As a further description of the above technical solution:

[0016] The air filter plate has multiple positioning posts at its bottom, which are arranged in a rectangular array at the bottom of the air filter plate. The tops of the positioning posts are all fixedly connected to the bottom of the air filter plate.

[0017] As a further description of the above technical solution:

[0018] The outer walls of the positioning columns are all slidably connected to the inside of the air filter box, and positioning holes are provided on both sides of the outer walls of the positioning columns.

[0019] As a further description of the above technical solution:

[0020] Limiting clips are provided on both the left and right sides of the outer wall of the positioning column. The outer wall of the limiting clip is slidably connected to the inside of the air filter box, and the side wall of the limiting clip is slidably connected to the inner wall of the positioning hole.

[0021] As a further description of the above technical solution:

[0022] Each of the limiting clips is provided with a limiting spring on its side. One end of each limiting spring is fixedly connected to the inside of the air filter box, and the other end of each limiting spring is fixedly connected to the side wall of the limiting clip.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the operator first manually slides the linkage block to cause the locking pin to retract inward and squeeze the reset spring. After the locking pin disengages from the internal hole of the sealing cover, the sealing cover can be removed to install the air filter plate. Then, the sealing cover is closed, the linkage block is released, and the reset spring pushes the locking pin into the hole to complete the seal. This achieves the effect of highly efficient sealing of the air filter, solves the problems of poor sealing and cumbersome disassembly and assembly of traditional filters, and improves the sealing effect and maintenance efficiency.

[0025] 2. In this utility model, the worker aligns the positioning post at the bottom corner of the air filter plate with the internal hole of the air filter box and inserts it. During insertion, the positioning post presses against the limiting clip, causing the limiting spring to compress. After the positioning post is fully inserted, the limiting spring pushes the limiting clip into the positioning hole on the outer wall of the positioning post, achieving the effect of quick installation of the air filter plate. This solves the problems of cumbersome installation and easy displacement of traditional air filter plates, and improves installation efficiency. Attached Figure Description

[0026] Figure 1 This is a perspective view of a snap-fit ​​high-sealing air filter proposed in this utility model;

[0027] Figure 2 This is an exploded view of the air filter box structure of a snap-fit ​​high-sealing air filter proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0029] Figure 4 This is a cross-sectional view of the air filter box structure of a snap-fit ​​high-sealing air filter proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the positioning column structure of a snap-fit ​​high-sealing air filter proposed in this utility model.

[0031] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0032] Legend:

[0033] 1. Air filter box; 2. Sealing cover; 3. Inlet pipe; 4. Outlet pipe; 5. Annular base; 6. Air filter plate; 7. Sealing strip; 8. Positioning post; 9. Handle; 10. Limiting spring; 11. Limiting clip; 12. Positioning hole; 13. Fixing block; 14. Return spring; 15. Sliding block; 16. Linkage block; 17. Locking post; 18. Slide groove. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1-3 This utility model provides an embodiment of a snap-fit ​​high-sealing air filter, including an air filter box 1. The air filter box 1 is injection molded from high-strength engineering plastic, which has good corrosion resistance and mechanical strength. It is used to accommodate the filter components and provide an air circulation channel. A sealing cover 2 is slidably connected to the top of the air filter box 1. The sealing cover 2 is also made of engineering plastic and is used to seal the air filter box 1 to prevent unfiltered air from entering. A sealing strip 7 is fixedly connected to the top of the air filter box 1 by adhesive. The sealing strip 7 is made of rubber and has excellent weather resistance and elasticity. It is used to enhance the sealing performance between the air filter box 1 and the sealing cover 2. The outer walls of the sealing cover 2 are machined with grooves 18 on both sides. The inner walls of the grooves 18 are smooth and are used to cooperate with the fixing block 13 in the locking component to realize the positioning and sliding of the sealing cover 2. An annular base 5 is fixedly connected to the outer wall of the air filter box 1 by injection molding. The annular base 5 is made of engineering plastic and is used to install the locking component and provide a support structure for locking the sealing cover 2. Locking components are provided on the left and right sides of the top of the annular base 5.

[0036] The locking assembly includes a fixing block 13, which is made of engineering plastic and has good wear resistance and dimensional stability. The bottom of the fixing block 13 is fixedly connected to the top of the annular base 5. The outer wall of the fixing block 13 is slidably connected to the inner wall of the slide groove 18. Both sides of the fixing block 13 have machined guide grooves to form a sliding fit structure with the slider 15. The slider 15 is slidably connected and is made of nylon. It is used to transmit the displacement of the linkage block 16 and drive the locking pin 17 to move. The locking pin 17 is fixedly connected to one side of the slider 15. The locking pin 17 is made of stainless steel 304 and is used to insert into the hole inside the sealing cover 2 to lock the sealing cover 2 and the air filter box 1. The other side of the slider 15 is provided with a return spring 14. The return spring 14 adopts... Made of spring steel, one end of each reset spring 14 is fixedly connected to a spring seat preset inside the fixed block 13, and the other end of each reset spring 14 is fixedly connected to the side wall of the slider 15, which is used to provide reset force for the slider 15 and realize the automatic locking of the locking post 17. A linkage block 16 is fixedly connected to the outer wall of the slider 15. The linkage block 16 is located on one side of the outer wall of the fixed block 13. The linkage block 16 is made of engineering plastic, which is used to facilitate the operation of the staff and realize the control of the slider 15 and the locking post 17. The air filter box 1 is equipped with a filter assembly inside, which is used to filter impurities in the air. An air inlet pipe 3 is fixedly connected to the bottom of the air filter box 1, which is used to introduce the air to be filtered. An air outlet pipe 4 is fixedly connected to the top of the sealing cover 2, which is used to output the filtered clean air.

[0037] Reference Figures 4-6The filter assembly includes an air filter plate 6, which is made of a high-strength polypropylene frame and polyester fiber filter material. The frame provides structural support, and the polyester fiber filter has high-efficiency air filtration capabilities. The outer wall of the air filter plate 6 is slidably connected to the inner wall of the air filter box 1. Handles 9 are fixedly connected to the top two sides of the air filter plate 6 by injection molding. The handles 9 are made of engineering plastic with anti-slip textures for easy gripping by operators. The handles 9 are used to assist in manual installation or removal of the air filter plate 6. Multiple positioning posts 8 are provided at the bottom of the air filter plate 6. The positioning posts 8 are made of polyoxymethylene plastic by injection molding and are used to achieve precise positioning of the air filter plate 6 within the air filter box 1. Their outer walls are polished and slide in conjunction with the guide holes inside the air filter box 1. The positioning posts 8 are arranged in a rectangular array at the bottom of the air filter plate 6, with their tops fixedly connected to the bottom of the air filter plate 6 and their outer walls slidably connected to the guide holes inside the air filter box 1. Positioning holes 12 are provided on both sides of the outer wall of the positioning post 8. The size of the positioning holes 12 is adapted to the limiting clips 11 to accommodate the limiting clips 11 and realize the positioning and fixing of the positioning post 8. Limiting clips 11 are provided on both the left and right sides of the outer wall of the positioning post 8. The limiting clips 11 are stamped from stainless steel 304. The outer wall of the limiting clips 11 cooperates with the slot inside the air filter box 1 through the processed sliding structure, and can slide inside the air filter box 1. The side wall of the limiting clips 11 and the inner wall of the positioning holes 12 form a locking structure to lock the position of the positioning post 8. The side walls of the limiting clips 11 are slidably connected to the inner wall of the positioning holes 12. Limiting springs 10 are provided on the side of the limiting clips 11. The limiting springs 10 are made of spring steel. One end of the limiting springs 10 is fixedly connected to the spring seat preset inside the air filter box 1, and the other end of the limiting springs 10 is fixedly connected to the side wall of the limiting clips 11 to provide the reset spring force for the limiting clips 11 and realize the automatic locking function.

[0038] Working principle: When using this snap-on high-sealing air filter, the operator first manually slides the linkage block 16 on the surface of the fixing block 13 on both sides of the sealing cover 2 inward. The inward displacement of the linkage block 16 on both sides drives the locking pin 17 to retract inward through the slider 15, and squeezes the return spring 14. After the locking pin 17 disengages from the hole inside the sealing cover 2, the operator can then remove the sealing cover 2 and put the air filter plate 6 into the air filter box 1. Then, the sealing cover 2 is placed on top of the air filter box 1, so that the fixing block 13 is inserted into the sliding groove 18 on both sides of the sealing cover 2. Then, the linkage block 16 is released, and the locking pin 17 is pushed by the return spring 14 to re-insert into the hole inside the sealing cover 2, thus completing the sealing of the air filter box 1 and the sealing cover 2, thereby achieving the effect of high-efficiency sealing of the air filter.

[0039] When installing the air filter plate 6, the worker holds the handle 9 and aligns the positioning posts 8 at the four corners of the bottom of the air filter plate 6 with the holes inside the air filter box 1 and inserts them. During the insertion process, the outer wall of the positioning post 8 first presses against the limiting clip 11, causing the limiting clip 11 to retract inward, which compresses the limiting spring 10. When the positioning post 8 is fully inserted, the limiting spring 10 pushes the limiting clip 11 back into the positioning hole 12 on the outer wall of the positioning post 8, thus completing the limiting of the positioning post 8, and thus limiting the air filter plate 6 as well, thereby achieving the effect of quickly installing the air filter plate 6.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A snap-fit ​​type high-sealing air filter, comprising an air filter box (1), characterized in that: The air filter box (1) is slidably connected to a sealing cover (2) at the top, and a sealing strip (7) is fixedly connected to the top of the air filter box (1). The sealing cover (2) has sliding grooves (18) on both sides of its outer wall. The air filter box (1) is fixedly connected to an annular base (5) on its outer wall. The annular base (5) has locking components on both the left and right sides of its top. The locking assembly includes a fixing block (13), the bottom of which is fixedly connected to the top of the annular base (5). The outer wall of the fixing block (13) is slidably connected to the inner wall of the slide groove (18). Sliding blocks (15) are slidably connected to both sides inside the fixing block (13). A locking post (17) is fixedly connected to one side of each sliding block (15). A return spring (14) is provided on the other side of each sliding block (15). One end of each return spring (14) is fixedly connected to the inside of the fixing block (13), and the other end of each return spring (14) is fixedly connected to the side wall of the sliding block (15). A linkage block (16) is fixedly connected to the outer wall of the sliding block (15). The linkage block (16) is located on one side of the outer wall of the fixing block (13).

2. The snap-fit ​​high-sealing air filter according to claim 1, characterized in that: The air filter box (1) is equipped with a filter assembly inside. An air inlet pipe (3) is fixedly connected to the bottom of the air filter box (1), and an air outlet pipe (4) is fixedly connected to the top of the sealing cover (2).

3. A snap-fit ​​high-sealing air filter according to claim 2, characterized in that: The filter assembly includes an air filter plate (6), the outer wall of which is slidably connected to the inner wall of the air filter box (1).

4. A snap-fit ​​high-sealing air filter according to claim 3, characterized in that: The air filter plate (6) is fixedly connected to handles (9) on both sides of the top. The handles (9) are used to assist in the manual installation or disassembly of the air filter plate (6).

5. A snap-fit ​​high-sealing air filter according to claim 4, characterized in that: The air filter plate (6) is provided with a plurality of positioning posts (8) at the bottom. The positioning posts (8) are arranged in a rectangular array at the bottom of the air filter plate (6), and the top of each positioning post (8) is fixedly connected to the bottom of the air filter plate (6).

6. A snap-fit ​​high-sealing air filter according to claim 5, characterized in that: The outer walls of the positioning posts (8) are slidably connected to the inside of the air filter box (1), and positioning holes (12) are provided on both sides of the outer walls of the positioning posts (8).

7. A snap-fit ​​high-sealing air filter according to claim 6, characterized in that: Limiting clips (11) are provided on both the left and right sides of the outer wall of the positioning column (8). The outer wall of the limiting clip (11) is slidably connected to the inside of the air filter box (1), and the side walls of the limiting clip (11) are slidably connected to the inner wall of the positioning hole (12).

8. A snap-fit ​​high-sealing air filter according to claim 7, characterized in that: Each of the limiting clips (11) is provided with a limiting spring (10) on its side. One end of each limiting spring (10) is fixedly connected to the inside of the air filter box (1), and the other end of each limiting spring (10) is fixedly connected to the side wall of the limiting clip (11).

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