Automobile air filter convenient to disassemble and clean
By designing a disassembly and assembly mechanism and a slow-moving mechanism, the problem of cumbersome installation during the maintenance and cleaning of automotive air filters has been solved, enabling convenient disassembly and safe filter replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-14
AI Technical Summary
Existing automotive air filters are cumbersome to install during maintenance and cleaning, which prolongs the working time.
The design incorporates a disassembly and assembly mechanism and a deceleration mechanism. The disassembly and assembly mechanism facilitates the easy disassembly and installation of the filter element mounting plate through a pressure rod and spring assembly. The deceleration mechanism slows down the pop-up speed of the filter element mounting plate through a rotating wheel and a resistance block, thereby improving safety.
It enables convenient disassembly and installation of filter elements, shortens maintenance time, and improves safety during use.
Smart Images

Figure CN224113556U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically to an automotive air filter that is easy to disassemble and clean. Background Technology
[0002] A filter is an accessory that uses filter paper to filter impurities or gases. Generally, it refers to automotive filters, which are engine components. Based on different filtration functions, they are categorized as: oil filters, fuel filters (gasoline filters, diesel filters, oil-water separators, hydraulic filters), air filters, and cabin air filters. Engines have three types of filters: air, oil, and fuel, commonly referred to as the "three filters." Adding the cabin air filter, it's commonly called the "four filters." These filters are responsible for filtering the media in the lubrication system, combustion system, engine intake system, and passenger air circulation system, respectively.
[0003] The utility model disclosed in CN210370954U is an easy-to-disassemble automotive air filter, including an upper housing and a lower housing. The upper housing and the lower housing are both provided with a fixing mechanism on the connecting side. The upper housing and the lower housing are fixedly connected by the fixing mechanism. An air intake pipe is installed through one side of the upper housing, and an exhaust pipe is installed through one side of the lower housing. The inner cavity formed by the upper housing and the lower housing is provided with a flow guiding mechanism. The inner cavities of the upper housing and the lower housing are provided with several sets of filter elements.
[0004] The aforementioned application document describes a method for convenient and quick filter installation: by rotating the support rod until it is above the fixed block, the screw is turned to connect it to the slot. Tightening the screw causes the upper and lower housings to be pressed together. However, this method is rather cumbersome and can delay work when maintenance and cleaning are required, thus requiring improvement. Utility Model Content
[0005] This invention proposes an automotive air filter that is easy to disassemble and clean, solving the problem mentioned in the above documents that delays the working time when maintenance and cleaning work is required.
[0006] The technical solution of this utility model is as follows: A car air filter that is easy to disassemble and clean includes a housing, an air inlet pipe that is connected through and fixed to one side of the housing, an air outlet pipe that is connected through and fixed to the other side of the housing, an insertion port on the top of the housing, a disassembly and assembly mechanism inside the housing, and a slowing mechanism on the top of the housing; the disassembly and assembly mechanism includes a mounting frame and a filter element mounting plate, the mounting frame being fixedly connected to the inside of the housing, a slot being provided on the bottom inner side of the mounting frame, a compression spring and a limiting block being provided on the bottom inner side of the slot, a pop-out plate being slidably connected to the inside of the slot through the compression spring, a slot being provided on the inner side wall of the slot, a pressure rod being connected through and slidably to the side of the slot, a groove being provided on the side of the filter element mounting plate, a telescopic spring being provided inside the groove, and an arc-shaped block being slidably connected to the inside of the groove through the telescopic spring.
[0007] Optionally, the bottom of the filter element mounting plate is located in the slot, and the bottom of the filter element mounting plate initially abuts against the top of the limiting block. The filter element mounting plate is inserted into the slot for installation, and the limiting block can prevent the filter element mounting plate from moving downwards.
[0008] Optionally, the top of the pop-out plate initially abuts against the bottom of the filter element mounting plate, and the compression spring is initially compressed. When the compression spring rebounds, it will cause the filter element mounting plate to bounce upward a certain distance through the pop-out plate.
[0009] Optionally, the opening size of the slot is equal to the opening size of the groove, and the end of the arc-shaped block away from the telescopic spring is initially located in the slot. The arc-shaped block is stuck in the slot so that the filter element mounting plate cannot move upward and leave the slot.
[0010] Optionally, the arc surface of the arc block faces downward, and the lateral length of the groove is greater than the lateral length of the arc block. When the arc surface of the arc block is squeezed, it will move into the groove, and the arc block can be completely retracted into the groove.
[0011] Optionally, the pressure rod protrudes from the housing and is slidably connected to the housing; pressing the pressure rod can cause the arc-shaped block to leave the slot.
[0012] Optionally, the deceleration mechanism includes a connecting frame, the bottom of which is fixedly connected to the top of the housing, a horizontal shaft fixedly connected to the inner side of the connecting frame, a rotating wheel rotatably connected to the surface of the horizontal shaft, an opening groove on the surface of the rotating wheel, a tension spring disposed inside the opening groove, a movable plate slidably connected inside the opening groove via the tension spring, and a resistance block fixedly connected to the end of the movable plate away from the tension spring.
[0013] Optionally, the surface of the rotating wheel is initially in close contact with the surface of the filter element mounting plate, and the moving plate is initially completely within the opening groove. When the filter element mounting plate moves up and down, it will rub against the rotating wheel, causing the rotating wheel to rotate. When the moving plate is completely within the opening groove, it will not affect the movement of the filter element mounting plate.
[0014] Optionally, the frictional force between the movable plate and the opening slot is greater than the weight of the movable plate itself, and the weight of the movable plate itself will not cause the movable plate to move out of the opening slot.
[0015] Optionally, the resistance block is generally conical in shape and made of rubber. When the conical rubber resistance block comes into contact with the filter element mounting plate, it will generate greater resistance.
[0016] The working principle and beneficial effects of this utility model are as follows:
[0017] 1. This utility model is equipped with a disassembly and assembly mechanism, which allows the filter element mounting plate to spring upwards and separate from the slot when two sets of corresponding pressure rods are pressed simultaneously during maintenance. At this time, the filter element mounting plate can be removed as a whole for cleaning. When reinstalling, the filter element mounting plate is inserted into the housing along the insertion port. When its bottom is inserted into the slot, the filter element mounting plate is fixed in place by the cooperation of components such as the arc block and the telescopic spring. The installation and disassembly are simple and facilitate maintenance and cleaning.
[0018] 2. By incorporating a slowing mechanism, this utility model achieves the effect of slowing down the rebound of the compression spring and the upward movement of the filter element mounting plate driven by the pop-out plate through the cooperation of components such as the bracket, rotating wheel, moving plate, and resistance block. This prevents the filter element mounting plate from jumping upward too quickly and colliding with the workers' limbs, effectively improving the safety of the overall device during use. Attached Figure Description
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a three-dimensional sectional view of the overall structure of this utility model;
[0022] Figure 3 This is a three-dimensional schematic diagram of the disassembly and assembly mechanism of this utility model;
[0023] Figure 4 This is a three-dimensional sectional view of the disassembly and assembly mechanism of this utility model;
[0024] Figure 5 This is a three-dimensional schematic diagram of the deceleration mechanism structure of this utility model;
[0025] Figure 6 This is a three-dimensional sectional view of the deceleration mechanism structure of this utility model.
[0026] In the diagram: 1. Housing; 2. Inlet pipe; 3. Outlet pipe; 4. Inlet; 5. Assembly / disassembly mechanism; 51. Mounting frame; 52. Slot; 53. Compression spring; 54. Pop-out plate; 55. Limiting block; 56. Slot; 57. Pressure rod; 58. Filter element mounting plate; 59. Groove; 510. Telescopic spring; 511. Arc-shaped block; 6. Deceleration mechanism; 61. Connecting frame; 62. Horizontal shaft; 63. Rotary wheel; 64. Opening slot; 65. Tension spring; 66. Moving plate; 67. Resistance block. Detailed Implementation
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0031] Example 1
[0032] like Figures 1-4As shown, this embodiment proposes an easy-to-disassemble and clean automotive air filter, including a housing 1. An intake pipe 2 is connected through and fixedly to one side of the housing 1, and an outlet pipe 3 is connected through and fixedly to the other side of the housing 1. An insertion port 4 is provided at the top of the housing 1. A disassembly and assembly mechanism 5 is provided inside the housing 1, and a slowing mechanism 6 is provided at the top of the housing 1. The disassembly and assembly mechanism 5 includes a mounting frame 51 and a filter element mounting plate 58. The mounting frame 51 is fixedly connected inside the housing 1, and a slot 52 is provided at the bottom inner side of the mounting frame 51. The slot 52 contains... A compression spring 53 and a limiting block 55 are provided at the bottom. A pop-out plate 54 is slidably connected to the inside of the slot 52 via the compression spring 53. A slot 56 is provided on the inner side wall of the slot 52. A pressure rod 57 is slidably connected through the side of the slot 56. A groove 59 is provided on the side of the filter element mounting plate 58. The bottom of the filter element mounting plate 58 is located inside the slot 52, and the bottom of the filter element mounting plate 58 initially abuts against the top of the limiting block 55. The filter element mounting plate 58 is inserted into the slot 52 for installation. The limiting block 55 can restrict the filter element mounting plate. 58 can no longer move downwards. The top of the ejector plate 54 is initially in contact with the bottom of the filter element mounting plate 58, and the compression spring 53 is initially compressed. When the compression spring 53 rebounds, it will cause the filter element mounting plate 58 to bounce upwards a certain distance via the ejector plate 54. A telescopic spring 510 is installed inside the groove 59, and an arc-shaped block 511 is slidably connected inside the groove 59 via the telescopic spring 510. The opening size of the slot 56 is equal to the opening size of the groove 59, and the arc-shaped block 511 is farthest from the telescopic spring 510. In its initial state, the end is located in the slot 56. The arc-shaped block 511 is stuck in the slot 56, preventing the filter element mounting plate 58 from moving upward and leaving the slot 52. The arc surface of the arc-shaped block 511 faces downward, and the lateral length of the groove 59 is greater than the lateral length of the arc-shaped block 511. When the arc surface of the arc-shaped block 511 is squeezed, it will move into the groove 59. The arc-shaped block 511 can be completely retracted into the groove 59. The pressure rod 57 protrudes from the housing 1 and is slidably connected to the housing 1. Pressing the pressure rod 57 can drive the arc-shaped block 511 out of the slot 56.
[0033] In this embodiment, gas enters through the inlet pipe 2, is filtered by the internal filters of the five sets of filter mounting plates 58, and is discharged through the outlet pipe 3. When the internal filters of the filter mounting plates 58 need maintenance and cleaning after long-term use, pressing the two sets of pressure rods 57 at the corresponding filter mounting plates 58 causes the arc-shaped blocks 511 to move away from the slots 56 and retract into the grooves 59, tightening the extension springs 510. When the two sets of arc-shaped blocks 511 simultaneously move away from the slots 56 and lose their restraint on the filter mounting plates 58, the compression springs 53 rebound and cause the filter mounting plates 58 to bounce upwards a certain distance via the ejector plate 54, causing the grooves 59 and slots 56 to misalign. The rebound of the extension springs 510 then causes the arc-shaped blocks 511 to bounce upwards a certain distance. When the curved block 511 pops out, the filter element mounting plate 58 can be removed as a whole for cleaning. When reinstalling, the filter element mounting plate 58 is inserted along the top insertion port 4 of the housing 1, and its bottom enters the slot 52, which drives the pop-out plate 54 to move downward until the bottom of the pop-out plate 54 contacts the top of the limiting block 55. The compression spring 53 is gradually compressed, and the curved block 511 is initially squeezed and retracts into the groove 59. The telescopic spring 510 is compressed. When the groove 59 coincides with the slot 56, the telescopic spring 510 rebounds and drives the curved block 511 to be inserted into the slot 56. At this time, the filter element mounting plate 58 is fixed. The overall installation and disassembly are simple and convenient for maintenance and cleaning.
[0034] Example 2
[0035] like Figures 1-6 As shown, based on the same concept as Embodiment 1 above, a second embodiment is also proposed. The deceleration mechanism 6 includes a connecting frame 61, the bottom of which is fixedly connected to the top of the housing 1. A horizontal shaft 62 is fixedly connected to the inner side of the connecting frame 61. A rotating wheel 63 is rotatably connected to the surface of the horizontal shaft 62. An opening groove 64 is formed on the surface of the rotating wheel 63. A tension spring 65 is provided inside the opening groove 64. A moving plate 66 is slidably connected inside the opening groove 64 through the tension spring 65. In the initial state, the surface of the rotating wheel 63 is in close contact with the surface of the filter element mounting plate 58, and the moving plate 66 is initially completely in the opening groove 64. Inside, when the filter element mounting plate 58 moves up and down, it will rub against the rotating wheel 63, causing the rotating wheel 63 to rotate. When the moving plate 66 is completely inside the opening groove 64, it will not affect the movement of the filter element mounting plate 58. The friction between the moving plate 66 and the opening groove 64 is greater than the weight of the moving plate 66 itself. The weight of the moving plate 66 itself will not cause the moving plate 66 to move out of the opening groove 64. A resistance block 67 is fixedly connected to the end of the moving plate 66 away from the tension spring 65. The resistance block 67 is conical in shape and made of rubber. When the conical rubber resistance block 67 comes into contact with the filter element mounting plate 58, it will generate a large resistance.
[0036] In this embodiment, when the filter element mounting plate 58 moves up and down, it rubs against the rotating wheel 63, causing the rotating wheel 63 to rotate. When the compression spring 53 rebounds and the ejector plate 54 causes the filter element mounting plate 58 to bounce upward a certain distance, the filter element mounting plate 58 moves upward at a relatively fast speed, causing the rotating wheel 63 to rotate at a relatively fast speed. The centrifugal force generated by the rapid rotation of the rotating wheel 63 will throw the moving plate 66 out. At this time, the conical rubber resistance block 67 will contact the filter element mounting plate 58 and generate a large resistance, preventing the filter element mounting plate 58 from colliding with the staff's limbs when it bounces upward at too fast speed, effectively improving the safety of the overall device during use.
[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. An easy-to-disassemble and clean automotive air filter, characterized in that, Includes a housing (1), an air inlet pipe (2) is connected through and fixedly connected to one side of the housing (1), an air outlet pipe (3) is connected through and fixedly connected to the other side of the housing (1), an insertion port (4) is provided on the top of the housing (1), a disassembly and assembly mechanism (5) is provided inside the housing (1), and a slowing mechanism (6) is provided on the top of the housing (1). The disassembly and assembly mechanism (5) includes an installation frame (51) and a filter element mounting plate (58). The installation frame (51) is fixedly connected to the inside of the housing (1). A slot (52) is provided on the bottom inner side of the installation frame (51). A compression spring (53) and a limiting block (55) are provided on the bottom inner side of the slot (52). A pop-out plate (54) is slidably connected to the inside of the slot (52) through the compression spring (53). A slot (56) is provided on the inner side wall of the slot (52). A pressure rod (57) is slidably connected through the side of the slot (56). A groove (59) is provided on the side of the filter element mounting plate (58). A telescopic spring (510) is provided inside the groove (59). An arc-shaped block (511) is slidably connected to the inside of the groove (59) through the telescopic spring (510).
2. The automotive air filter that is easy to disassemble and clean according to claim 1, characterized in that, The bottom of the filter element mounting plate (58) is located in the slot (52), and the bottom of the filter element mounting plate (58) initially abuts against the top of the limiting block (55).
3. The automotive air filter that is easy to disassemble and clean according to claim 2, characterized in that, The top of the pop-out plate (54) initially abuts against the bottom of the filter element mounting plate (58), and the compression spring (53) is initially compressed.
4. The automotive air filter that is easy to disassemble and clean according to claim 3, characterized in that, The opening size of the slot (56) is equal to the opening size of the groove (59), and the end of the arc block (511) away from the telescopic spring (510) is initially located in the slot (56).
5. A car air filter that is easy to disassemble and clean according to claim 4, characterized in that, The arc surface of the arc block (511) faces downward, and the lateral length of the groove (59) is greater than the lateral length of the arc block (511).
6. A car air filter that is easy to disassemble and clean according to claim 5, characterized in that, The pressure rod (57) protrudes from the housing (1) and is slidably connected to the housing (1) through it.
7. A car air filter that is easy to disassemble and clean according to claim 6, characterized in that, The slowing mechanism (6) includes a connecting frame (61), the bottom of which is fixedly connected to the top of the housing (1). A horizontal shaft (62) is fixedly connected to the inner side of the connecting frame (61). A rotating wheel (63) is rotatably connected to the surface of the horizontal shaft (62). An opening groove (64) is provided on the surface of the rotating wheel (63). A tension spring (65) is provided inside the opening groove (64). A moving plate (66) is slidably connected inside the opening groove (64) through the tension spring (65). A resistance block (67) is fixedly connected to the end of the moving plate (66) away from the tension spring (65).
8. A car air filter that is easy to disassemble and clean according to claim 7, characterized in that, The surface of the rotating wheel (63) is in close contact with the surface of the filter element mounting plate (58) in the initial state, and the moving plate (66) is completely inside the opening groove (64) in the initial state.
9. A car air filter that is easy to disassemble and clean according to claim 8, characterized in that, The frictional force between the movable plate (66) and the opening groove (64) is greater than the weight of the movable plate (66) itself.
10. A car air filter that is easy to disassemble and clean according to claim 9, characterized in that, The resistance block (67) is conical in shape and is made of rubber.
Citation Information
Patent Citations
Automobile air filter convenient to disassemble
CN210370954U