Automobile air filter element convenient to disassemble

Abstract

This utility model discloses an easily disassembled automotive air filter, specifically relating to the field of air filters. It includes a first cylindrical filter and a second cylindrical filter, with the second cylindrical filter fitted over the outside of the first cylindrical filter. The outer wall of the first cylindrical filter is fixed with multiple arc-shaped fixing plates arranged in a circular array. Each arc-shaped fixing plate has a threaded fastening bolt inside. The inner wall of the second cylindrical filter is fixed with an arc-shaped limiting block corresponding to the arc-shaped fixing plate, and the inner wall of the arc-shaped limiting block contacts the outer wall of the arc-shaped fixing plate. This utility model uses the first and second cylindrical filter elements to form an automotive air filter, effectively improving the filtration effect. The use of fastening bolts to fix the first cylindrical filter allows for quick installation and disassembly, effectively improving its stability. Furthermore, the threaded connection used to fix the second cylindrical filter simplifies the structure and facilitates rapid installation and disassembly.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and more specifically to an easy-to-disassemble automotive air filter. Background Technology

[0002] Currently, with social development, automobiles have gradually become necessities in people's lives. During operation, a car engine draws in a large amount of air. If this air is not filtered, suspended dust particles will be drawn into the cylinders, accelerating wear on the piston assembly and cylinders. Larger particles entering between the piston and cylinder can cause severe "cylinder scoring," which is particularly serious in dry, sandy working environments. The air filter, located in front of the carburetor or intake manifold, filters out dust and sand particles from the air, ensuring that sufficient clean air enters the cylinders. The main components of an air filter are the filter element and the housing. The filter element is the primary filtration component, responsible for filtering the air, while the housing provides necessary protection for the filter element. The requirements for a car's air filter are to perform high-efficiency air filtration, not add excessive resistance to airflow, and be able to operate continuously for extended periods.

[0003] For example, an automotive air filter with prior art disclosure number CN212744181U features equidistant grooves on its body, an elongated hole in the middle of each groove, threaded holes at both ends of each groove, and a connection between the top of each groove and the bottom of a frame. Screws are installed at both ends of the frame. A wire mesh is installed on one side of the inner wall of the body, a coarse filter is installed on one side of the wire mesh, and an activated carbon adsorption mesh is installed at one end of the coarse filter. This invention has a simple structure and is easy to operate.

[0004] However, existing automotive air filters have the following problems in use: Traditional truck air filters typically consist of two cylindrical filter elements, usually installed using a snap-fit ​​method. Bumps during vehicle movement can cause the air filter to loosen, thus affecting its air purification effect. Therefore, this invention provides an easily removable automotive air filter. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides an easily disassembled automotive air filter element. The air filter element is composed of a first cylindrical filter element and a second cylindrical filter element, effectively improving the filtration effect. The first cylindrical filter element is installed using fastening bolts, making installation and disassembly very quick and effectively improving its stability. Furthermore, the second cylindrical filter element is fixed using a threaded connection, resulting in a simple structure and very quick installation and disassembly, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easily disassembled automotive air filter, comprising a first cylindrical filter and a second cylindrical filter, wherein the second cylindrical filter is fitted over the outside of the first cylindrical filter. The outer wall of the first cylindrical filter is fixed with a plurality of arc-shaped fixing plates arranged in a circular array, each arc-shaped fixing plate having a threaded fastening bolt inside. The inner wall of the second cylindrical filter is fixed with an arc-shaped limiting block corresponding to the arc-shaped fixing plate, the inner wall of the arc-shaped limiting block contacting the outer wall of the arc-shaped fixing plate. The outer wall of the front end of the second cylindrical filter is machined with a threaded groove, and the rear end of the second cylindrical filter has a plurality of mounting slots arranged in a circular array, each mounting slot having a limiting component fixed inside. The limiting component effectively improves the installation stability of the second cylindrical filter.

[0007] In a preferred embodiment, a positioning plate is fixedly provided at the front end of each arc-shaped fixing plate, and the front end of the fastening bolt passes through the positioning plate and extends to the outside of the positioning plate. The positioning plate cooperates with the arc-shaped fixing plate to facilitate the user to quickly install the second cylindrical filter element.

[0008] In a preferred embodiment, the limiting assembly includes a limiting cylinder installed in the mounting groove, with a limiting rod passing through the inside of each limiting cylinder. A compression spring connects the limiting rod and the limiting cylinder, and the compression spring provides support between the limiting rod and the limiting cylinder, thereby effectively improving the stability of the limiting rod.

[0009] In a preferred embodiment, each limiting rod is fixedly provided with a lever at its rear end, and the lever is located on the side away from the limiting cylinder. The lever is provided to facilitate the user to quickly adjust the position of the limiting rod.

[0010] In a preferred embodiment, each push block has a pin extending through its rear end, and each limiting cylinder has a corresponding insertion hole at its rear end. By using the pin and the insertion hole to cooperate, the limiting rod can be fixed to prevent it from automatically extending and affecting the installation of the second cylindrical filter element.

[0011] In a preferred embodiment, both the inner wall of the front end of the first cylindrical filter element and the inner wall of the front end of the second cylindrical filter element are provided with rubber sealing rings. The rubber sealing rings can improve the sealing performance of the first and second cylindrical filter elements during installation and use.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model uses a first cylindrical filter element and a second cylindrical filter element to form an automotive air filter element, which effectively improves the filtration effect. At the same time, the first cylindrical filter element is installed by fastening bolts, which makes installation and disassembly very quick and can effectively improve the stability of the first cylindrical filter element. In addition, the second cylindrical filter element is fixed by threaded connection, which is simple in structure and makes installation and disassembly very quick.

[0013] By setting multiple arc-shaped limiting blocks on the inner wall of the second cylindrical filter element, the user can quickly slip the second cylindrical filter element onto the outside of the first cylindrical filter element by means of the limiting effect between the arc-shaped limiting blocks and the arc-shaped fixing plate when installing the second cylindrical filter element, thereby further improving the installation speed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 This is a rear view of the first cylindrical filter element of this utility model; Figure 4 This is a front view of the second cylindrical filter element of this utility model; Figure 5 This is a cross-sectional view of the limiting cylinder of this utility model.

[0015] The attached figures are labeled as follows: 1. First cylindrical filter element; 2. Second cylindrical filter element; 3. Arc-shaped fixing plate; 4. Fastening bolt; 5. Arc-shaped limiting block; 6. Threaded groove; 7. Mounting groove; 8. Limiting assembly; 81. Limiting cylinder; 82. Limiting rod; 83. Compression spring; 84. Pulley; 9. Positioning plate; 10. Pin; 11. Insertion hole; 12. Rubber sealing ring. 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] Refer to the instruction manual appendix Figures 1-5 This utility model provides an easily disassembled automotive air filter element, including a first cylindrical filter element 1 and a second cylindrical filter element 2, with the second cylindrical filter element 2 fitted outside the first cylindrical filter element 1. The first cylindrical filter element 1 and the second cylindrical filter element 2 can be composed of inner and outer metal filter screens, intermediate pleated filter paper, upper and lower end caps, and sealing rings. By selecting filter screens with different mesh sizes, dual filtration can be achieved, effectively improving the air filtration effect. The outer wall of the first cylindrical filter element 1 is fixed with multiple arc-shaped fixing plates 3 arranged in a ring array, and each arc-shaped fixing plate 3 is threaded with a fastening bolt 4. The inner wall of the second cylindrical filter element 2 is fixed with an arc-shaped limiting block 5 corresponding to the arc-shaped fixing plate 3, and the inner wall of the arc-shaped limiting block 5 contacts the outer wall of the arc-shaped fixing plate 3. The outer wall of the front end of the second cylindrical filter element 2 is machined with a threaded groove 6.

[0018] Each arc-shaped fixing plate 3 has a positioning plate 9 fixed at its front end, and the front end of the fastening bolt 4 passes through the positioning plate 9 and extends to the outside of the positioning plate 9.

[0019] The second cylindrical filter element 2 has multiple mounting slots 7 arranged in a ring array at its rear end. Each mounting slot 7 is fixedly equipped with a limiting component 8. The limiting component 8 includes a limiting cylinder 81 installed in the mounting slot 7. Each limiting cylinder 81 has a limiting rod 82 passing through it. A compression spring 83 is connected between the limiting rod 82 and the limiting cylinder 81. The compression spring 83 provides support between the limiting rod 82 and the limiting cylinder 81, thereby effectively improving the stability of the limiting rod 82.

[0020] Each limiting rod 82 has a fixed lever 84 at its rear end, and the lever 84 is located on the side away from the limiting cylinder 81. Each lever 84 has a pin 10 passing through its rear end, and each limiting cylinder 81 has a corresponding insertion hole 11 at its rear end. By using the pin 10 and the insertion hole 11 to cooperate, the limiting rod 82 can be fixed to prevent it from automatically extending and affecting the installation of the second cylindrical filter element 2.

[0021] In actual use, the user first aligns the front end of the first cylindrical filter element 1 with the vent pipe and inserts it. After inserting the multiple positioning plates 9 into the inner wall of the vent pipe, the user then tightens the multiple fastening bolts 4 in sequence to reinforce the pipe. After installing the first cylindrical filter element 1, the user places the second cylindrical filter element 2 on the outside of the first cylindrical filter element 1 and threads the second cylindrical filter element 2 into the vent pipe. Finally, the user pulls out the pins 10 on the lever 84 in sequence, then grasps the lever 84 and slowly releases the limiting rod 82. The limiting rod 82 and the limiting cylinder 81 are separated. The compression spring 83 pushes the limiting rod 82 to abut against the inner wall of the vent pipe, thereby limiting the second cylindrical filter element 2 and further improving the stability of the second cylindrical filter element 2. When disassembly and replacement are required, the user first grasps the lever 84 to drive the limiting rod 82 to retract into the limiting cylinder 81, then inserts the pin 10 into the insertion hole 11, and then twists the second cylindrical filter element 2 to remove it from the vent pipe. After that, the user loosens the multiple fastening bolts 4 in sequence to remove the first cylindrical filter element 1 from the vent pipe. The structure is simple and the installation and disassembly are very quick.

[0022] like Figure 1 As shown, rubber sealing rings 12 are provided on the inner wall of the front end of the first cylindrical filter element 1 and the inner wall of the front end of the second cylindrical filter element 2. The rubber sealing rings 12 can improve the sealing performance of the first cylindrical filter element 1 and the second cylindrical filter element 2 during installation and use.

[0023] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 readily removable automotive air filter cartridge characterized by: It includes a first cylindrical filter element (1) and a second cylindrical filter element (2), and the second cylindrical filter element (2) is sleeved on the outside of the first cylindrical filter element (1). The outer wall of the first cylindrical filter element (1) is fixed with a plurality of arc-shaped fixing plates (3) arranged in a ring array, and each arc-shaped fixing plate (3) is threaded with a fastening bolt (4). The inner wall of the second cylindrical filter element (2) is fixed with an arc-shaped limiting block (5) corresponding to the arc-shaped fixing plate (3). The inner wall of the arc-shaped limiting block (5) is in contact with the outer wall of the arc-shaped fixing plate (3). The outer wall of the front end of the second cylindrical filter element (2) is machined with a threaded groove (6). The second cylindrical filter element (2) has multiple mounting slots (7) arranged in a ring array at its rear end, and each mounting slot (7) is fixedly equipped with a limiting component (8).

2. The easily removable automotive air filter element according to claim 1, characterized in that: Each arc-shaped fixing plate (3) is fixed with a positioning plate (9) at its front end. The front end of the fastening bolt (4) passes through the positioning plate (9) and extends to the outside of the positioning plate (9).

3. The easily removable automotive air filter element according to claim 1, characterized in that: The limiting assembly (8) includes a limiting cylinder (81) installed in the mounting groove (7), and a limiting rod (82) runs through the inside of each limiting cylinder (81). A compression spring (83) is connected between the limiting rod (82) and the limiting cylinder (81).

4. The easily removable automotive air filter element according to claim 3, characterized in that: Each limit rod (82) has a fixed paddle (84) at its rear end, and the paddle (84) is located on the side away from the limit cylinder (81).

5. The easily removable automotive air filter element according to claim 4, characterized in that: Each lever (84) has a pin (10) through its rear end, and each limiting cylinder (81) has a corresponding insertion hole (11) at its rear end.

6. The easily removable automotive air filter element according to claim 1, characterized in that: The inner wall of the front end of the first cylindrical filter element (1) and the inner wall of the front end of the second cylindrical filter element (2) are both provided with rubber sealing rings (12).

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