Air inlet device for air filter

Abstract

The utility model relates to the technical field of air filters, and discloses an air inlet device for an air filter, which comprises a lower shell, an air inlet is arranged on the right side surface of the lower shell, a first air inlet pipe is arranged in the air inlet, an air filter element is arranged in the lower shell, a mounting hole is arranged in the lower shell, and a rotating shaft is arranged in the mounting hole. A shifting rod is fixedly installed on the outer side face of the rotating shaft, and a limiting block is fixedly installed on the outer side face of the shifting rod. The positions of the two protruding blocks and the first air inlet pipe can be effectively limited through the two grooves, meanwhile, the first air inlet pipe can be fixedly installed by clamping the external buckles into the clamping grooves, the air filter element can be conveniently installed through the limiting sliding rails, and after the shell is installed, the first air inlet pipe can be fixedly installed through the limiting sliding rails. And the position of the air filter element can be fixed through the fixing ring, so that the stability of connection of the device is improved, meanwhile, a user can conveniently disassemble and assemble the device, and good convenience is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an air intake device for an air filter. Background Art

[0002] The air filter is an indispensable part of modern automobile engines and other internal combustion engine equipment. Its main function is to filter out dust and impurities in the air and ensure that the air entering the engine is as pure as possible to maintain the efficient operation of the engine. The core components of the air filter intake device usually include the air filter body, intake pipe, filter screen, etc. It plays a vital role in ensuring engine performance, extending service life, and meeting environmental protection requirements. Since the air filter body will intercept dust and particulate matter in the air inside, it needs to be regularly inspected and replaced to ensure the filtering effect. In order to improve the air filtration efficiency and the overall service life and reduce maintenance costs, an air filter intake device is proposed.

[0003] According to the search, the Chinese patent document, announcement number: CN204003186U, discloses an air filter intake duct and a car. By adopting a segmented structure duct, the installation can be completed without disassembling the fender, which is easy to operate and avoids the increase in labor costs and working hours caused by disassembling the fender. However, in actual use, since the first pipe section and other parts are fixedly connected by bolts, when the owner and other personnel do not have appropriate tools, it is not only inconvenient to disassemble and assemble, but also there is a risk that the bolts will fall into the engine compartment when removed, which reduces the overall practicality and work efficiency of the device. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an air intake device for an air filter, which has the advantages of being easy to disassemble and assemble, improving air filtration efficiency and overall service life, and reducing maintenance costs, thereby solving the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air intake device for an air filter, comprising a lower shell body, an air inlet is arranged on the right side surface of the lower shell body, a first air inlet pipe is installed inside the air inlet, an air filter element is installed inside the lower shell body, a mounting hole is opened inside the lower shell body, a rotating shaft is installed inside the mounting hole, a lever is fixedly installed on the outer side surface of the rotating shaft, a limiting block is fixedly installed on the outer side surface of the lever, a spring is fixedly installed on the inner side surface of the lever, an upper shell body and a positioning column are installed on the top surface of the lower shell body, a second air inlet pipe is fixedly installed on the top surface of the upper shell body, a protective cover is threadedly connected to the outer side surface of the positioning column, and a connecting rope is fixedly installed on the outer side surface of the protective cover.

[0008] Preferably, two grooves are provided inside the air inlet, two bumps are provided on the outer side of the first air inlet pipe, the two bumps are correspondingly installed inside the two grooves, and a card slot is opened on the outer side of the first air inlet pipe.

[0009] Through the above technical solution, the two grooves can effectively limit the positions of the two protrusions and the first air intake pipe. At the same time, the first air intake pipe can be fixedly installed by snapping the external clip into the inside of the clip slot. This not only improves the stability of the device connection, but also facilitates disassembly and assembly for users, providing great convenience.

[0010] Preferably, a limiting slide rail is provided inside the lower shell, a fixing ring is provided on the bottom surface of the upper shell, the air filter element is slidably mounted inside the limiting slide rail, and the fixing ring is mounted on the top surface of the air filter element.

[0011] Through the above technical scheme, the limiting slide rail can facilitate the installation of the air filter element. After that, after the upper shell is installed, the fixing ring can fix the position of the air filter element, thereby improving the overall stability of the device. In addition, when external air enters the interior of the lower shell through the first air inlet pipe and the air inlet, the air filter element can effectively intercept dust, particulate matter, etc. in the air, while impurities with larger particles will stay at the bottom of the lower shell under the action of gravity. Therefore, it can effectively prevent the air filter element from being blocked prematurely, thereby improving the overall air filtration efficiency and service life.

[0012] Preferably, the number of the mounting hole, the rotating shaft, the shifting rod, the limiting block and the spring is four, and one end of the spring away from the shifting rod is fixedly connected to the inside of the mounting hole.

[0013] Through the above technical solution, when the lever is moved, the lever and the rotating shaft can drive the limit block to move inward while rotating. At this time, when the limit block leaves the position of the upper shell, the upper shell can be removed. After that, the lever is released, and it can return to its original position under the action of the spring and the restriction of the limit block. Therefore, the upper shell can be easily disassembled and assembled, thereby improving the overall convenience of the device.

[0014] Preferably, the number of the positioning column, the protective cover and the connecting rope is four, and one end of the connecting rope away from the protective cover is fixedly connected to the outer surface of the lower shell.

[0015] Through the above technical solution, the protective cover is spirally installed on the outer surface of the positioning column, which can not only effectively prevent dust and other impurities from entering the interior of the installation hole, but also the protective cover can further press and fix the upper shell, thereby improving the overall stability and practicality of the device; and the connecting rope can prevent the risk of accidentally falling into the engine compartment when removing the protective cover, thereby ensuring the smooth progress of the disassembly and assembly process.

[0016] Preferably, a limiting groove is provided inside the upper shell, a through hole is provided on the outer side of the positioning column, the limiting block is installed inside the limiting groove and the through hole, and the top surface of the limiting block near the outer side is set as an inclined surface.

[0017] Through the above technical solution, the upper shell is pressed downward when installing the upper shell. When the upper shell contacts the inclined surface of the limit block, it can be pushed inward together with the lever. Then, when the upper shell is installed to the top surface of the lower shell, the limit block also reaches the position of the limit groove. Then, under the action of the spring, it can move outward and be clamped in the inside of the limit groove, thereby effectively fixing the upper shell and improving the overall stability and practicality of the device.

[0018] Compared with the prior art, the utility model provides an air intake device for an air filter, which has the following

[0019] Beneficial effects:

[0020] 1. The utility model can effectively limit the positions of the two protrusions and the first air intake pipe through the two grooves, and the first air intake pipe can be fixedly installed by snapping the external buckle into the inside of the card slot. The air filter element can be conveniently installed through the limiting slide rail. After that, after installing the upper shell body, the fixing ring can fix the position of the air filter element, which not only improves the stability of the device connection, but also facilitates the user to disassemble and assemble, providing great convenience; when the external air enters the interior of the lower shell body through the first intake pipe and the air inlet, the air filter element can effectively intercept the dust, particulate matter, etc. in the air, and impurities with larger particles will stay at the bottom of the lower shell body under the action of gravity, so it can effectively prevent the air filter element from being blocked prematurely, thereby improving the overall air filtration efficiency and service life.

[0021] 2. The utility model presses the upper shell downward, and when the upper shell contacts the inclined surface of the limit block, it can be pushed inward together with the lever, and then when the upper shell is installed to the top surface of the lower shell, the limit block will immediately reach the position of the limit groove, and then it can move outward under the action of the spring and be clamped in the inside of the limit groove, so as to effectively fix the upper shell; then the protective cover is screwed on the outer surface of the positioning column, which can not only effectively prevent dust and other impurities from entering the inside of the installation hole, but also realize further fixing of the upper shell. The step-by-step pressing and fixing improves the overall stability and practicality of the device; the connecting rope can prevent the risk of accidentally falling into the engine compartment when removing the protective cover, ensuring the smooth progress of the disassembly and assembly process; when the device needs to be disassembled, the lever is pushed, and the lever and the rotating shaft can drive the limit block to move inward while rotating. At this time, when the limit block leaves the position of the upper shell, the upper shell can be removed, and then the lever is released. It can return to its original position under the action of the spring and the restriction of the limit block. Therefore, the upper shell can be easily disassembled and assembled, improving the overall convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the first air intake pipe and other parts of the utility model structure;

[0024] Figure 3 It is a three-dimensional exploded cross-sectional schematic diagram of the upper shell and other parts of the structure of the utility model;

[0025] Figure 4 It is a front cross-sectional schematic diagram of the structural positioning column and other parts of the utility model.

[0026] Among them: 1. lower shell; 2. air inlet; 3. first air inlet pipe; 4. air filter element; 5. mounting hole; 6. rotating shaft; 7. lever; 8. limit block; 9. spring; 10. upper shell; 11. positioning column; 12. second air inlet pipe; 13. protective cover; 14. connecting rope; 15. groove; 16. protrusion; 17. slot; 18. limit slide rail; 19. fixing ring; 20. limit groove; 21. through hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 An air intake device for an air filter comprises a lower shell 1, an air inlet 2 is arranged on the right side of the lower shell 1, a first air inlet pipe 3 is installed inside the air inlet 2, an air filter element 4 is installed inside the lower shell 1, a mounting hole 5 is opened inside the lower shell 1, a rotating shaft 6 is installed inside the mounting hole 5, a lever 7 is fixedly installed on the outer side of the rotating shaft 6, a limiting block 8 is fixedly installed on the outer side of the lever 7, a spring 9 is fixedly installed on the inner side of the lever 7, an upper shell 10 and a positioning column 11 are installed on the top surface of the lower shell 1, a second air inlet pipe 12 is fixedly installed on the top surface of the upper shell 10, a protective cover 13 is threadedly connected to the outer side of the positioning column 11, and a connecting rope 14 is fixedly installed on the outer side of the protective cover 13.

[0029] Specifically, two grooves 15 are provided inside the air inlet 2, and two protrusions 16 are provided on the outer side of the first air inlet pipe 3. The two protrusions 16 are correspondingly installed inside the two grooves 15, and a card slot 17 is provided on the outer side of the first air inlet pipe 3. The advantage is that the first air inlet pipe 3 can be effectively fixedly installed inside the air inlet 2 through this structure, and the two grooves 15 can effectively limit the positions of the two protrusions 16 and the first air inlet pipe 3. At the same time, the first air inlet pipe 3 can be fixedly installed by snapping the external buckle into the inside of the card slot 17, which not only improves the stability of the device connection, but also facilitates the user to disassemble and assemble, providing great convenience.

[0030] Specifically, a limiting slide rail 18 is provided inside the lower shell 1, a fixing ring 19 is provided on the bottom surface of the upper shell 10, the air filter element 4 is slidably installed inside the limiting slide rail 18, and the fixing ring 19 is installed on the top surface of the air filter element 4. The advantage is that the limiting slide rail 18 of this structure can facilitate the installation of the air filter element 4, and then after the upper shell 10 is installed, the fixing ring 19 can fix the position of the air filter element 4, thereby improving the overall stability of the device; in addition, when the external air enters the interior of the lower shell 1 through the first air inlet pipe 3 and the air inlet 2, the air filter element 4 can effectively intercept the dust, particles, etc. in the air, and the impurities with larger particles will stay at the bottom of the lower shell 1 under the action of gravity, so that the air filter element 4 can be effectively prevented from being blocked prematurely, thereby improving the overall air filtration efficiency and service life.

[0031] Specifically, the number of the mounting hole 5, the rotating shaft 6, the lever 7, the limit block 8 and the spring 9 are all four, and the end of the spring 9 away from the lever 7 is fixedly connected to the inside of the mounting hole 5. The advantage is that, through this structure, when the lever 7 is moved, the lever 7 and the rotating shaft 6 can drive the limit block 8 to move inward while rotating, and at this time, when the limit block 8 leaves the position of the upper shell 10, the upper shell 10 can be removed, and then the lever 7 is released, and it can return to its original position under the action of the spring 9 and the restriction of the limit block 8, so the upper shell 10 can be conveniently disassembled and assembled, which improves the convenience of the device as a whole.

[0032] Specifically, the number of the positioning column 11, the protective cover 13 and the connecting rope 14 are all four, and the end of the connecting rope 14 away from the protective cover 13 is fixedly connected to the outer surface of the lower shell 1. The advantage is that the protective cover 13 is screwed onto the outer surface of the positioning column 11 through this structure, which can not only effectively prevent dust and other impurities from entering the interior of the mounting hole 5, but also the protective cover 13 can further press and fix the upper shell 10, thereby improving the overall stability and practicality of the device; and the connecting rope 14 can prevent the risk of accidentally falling into the engine compartment when the protective cover 13 is removed, thereby ensuring the smooth disassembly and assembly process.

[0033] Specifically, a limiting groove 20 is provided inside the upper shell 10, a through hole 21 is provided on the outer side of the positioning column 11, and the limiting block 8 is installed inside the limiting groove 20 and the through hole 21, and the top surface of the limiting block 8 near the outer side is set as an inclined surface. The advantage is that, through this structure, when the upper shell 10 is installed, the upper shell 10 is pressed downward, and when the upper shell 10 contacts the inclined surface of the limiting block 8, it can be pushed inward together with the lever 7, and then when the upper shell 10 is installed on the top surface of the lower shell 1, the limiting block 8 also reaches the position of the limiting groove 20 immediately, and then it can move outward under the action of the spring 9 and be clamped in the inside of the limiting groove 20, thereby effectively fixing the upper shell 10, improving the overall stability and practicality of the device.

[0034] When in use, the positions of the two protrusions 16 and the first air inlet pipe 3 can be effectively limited by the two grooves 15, and the first air inlet pipe 3 can be fixedly installed by snapping the external buckle into the inside of the card slot 17. The air filter element 4 can be conveniently installed through the limiting slide rail 18. After the upper shell 10 is installed, the fixing ring 19 can fix the position of the air filter element 4, which not only improves the stability of the device connection, but also facilitates the user to disassemble and assemble, providing good convenience; when the external air enters the interior of the lower shell 1 through the first air inlet pipe 3 and the air inlet 2, the air filter element 4 can effectively intercept the dust, particles, etc. in the air, and the impurities with larger particles will stay at the bottom of the lower shell 1 under the action of gravity, so that the air filter element 4 can be effectively prevented from being blocked prematurely, thereby improving the overall air filtration efficiency and service life; by pressing the upper shell 10 downward, when the upper shell 10 contacts the inclined surface of the limiting block 8, it can be pushed inward together with the lever 7, and then the upper shell 10 is installed to When the top surface of the lower shell 1 is reached, the limit block 8 also reaches the position of the limit groove 20, and then it can move outward under the action of the spring 9 and be clamped in the inside of the limit groove 20, thereby effectively fixing the upper shell 10; then the protective cover 13 is screwed on the outer surface of the positioning column 11, which can not only effectively prevent dust and other impurities from entering the inside of the installation hole 5, but also the protective cover 13 can further press and fix the upper shell 10, thereby improving the overall stability and practicality of the device; and the connecting rope 14 can The risk of accidentally falling into the engine compartment when removing the protective cover 13 is prevented, thereby ensuring the smooth progress of the disassembly and assembly process; when the device needs to be disassembled, the lever 7 is pushed, and the lever 7 and the rotating shaft 6 can drive the limit block 8 to move inward while rotating. At this time, when the limit block 8 leaves the position of the upper shell 10, the upper shell 10 can be removed, and then the lever 7 is released, and it can return to its original position under the action of the spring 9 and the restriction of the limit block 8. Therefore, the upper shell 10 can be easily disassembled and assembled, thereby improving the overall convenience of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air intake device for an air filter, comprising a lower housing (1), characterized in that: The right side of the lower shell (1) is provided with an air inlet (2), a first air inlet pipe (3) is installed inside the air inlet (2), an air filter element (4) is installed inside the lower shell (1), a mounting hole (5) is opened inside the lower shell (1), a rotating shaft (6) is installed inside the mounting hole (5), a lever (7) is fixedly installed on the outer side of the rotating shaft (6), a limit block (8) is fixedly installed on the outer side of the lever (7), a spring (9) is fixedly installed on the inner side of the lever (7), an upper shell (10) and a positioning column (11) are installed on the top surface of the lower shell (1), a second air inlet pipe (12) is fixedly installed on the top surface of the upper shell (10), a protective cover (13) is threadedly connected to the outer side of the positioning column (11), and a connecting rope (14) is fixedly installed on the outer side of the protective cover (13).

2. The air intake device for an air filter according to claim 1, characterized in that: The air inlet (2) is provided with two grooves (15) inside, the outer side surface of the first air inlet pipe (3) is provided with two protrusions (16), the two protrusions (16) are correspondingly installed inside the two grooves (15), and the outer side surface of the first air inlet pipe (3) is provided with a card slot (17).

3. The air intake device for an air filter according to claim 1, characterized in that: A limiting slide rail (18) is arranged inside the lower shell (1), a fixing ring (19) is arranged on the bottom surface of the upper shell (10), the air filter element (4) is slidably mounted inside the limiting slide rail (18), and the fixing ring (19) is mounted on the top surface of the air filter element (4).

4. The air intake device for an air filter according to claim 1, characterized in that: The number of the mounting hole (5), the rotating shaft (6), the shifting rod (7), the limiting block (8) and the spring (9) is four, and one end of the spring (9) away from the shifting rod (7) is fixedly connected to the inside of the mounting hole (5).

5. The air intake device for an air filter according to claim 1, characterized in that: The number of the positioning column (11), the protective cover (13) and the connecting rope (14) is four, and one end of the connecting rope (14) away from the protective cover (13) is fixedly connected to the outer surface of the lower shell (1).

6. The air intake device for an air filter according to claim 1, characterized in that: A limiting groove (20) is provided inside the upper shell (10), a through hole (21) is provided on the outer side of the positioning column (11), the limiting block (8) is installed inside the limiting groove (20) and the through hole (21), and the top surface of the limiting block (8) close to the outer side is set as an inclined surface.

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