Odor detection and self-cleaning device for air outlet of automobile instrument panel

Abstract

The invention relates to the field of in-vehicle air quality detection, in particular to a peculiar smell detection and self-cleaning device for an air outlet of an automobile instrument panel. The automobile dashboard air outlet peculiar smell detection self-cleaning device comprises a pipeline body, an arc-shaped filter plate, a driving assembly, an arc-shaped cleaning brush, an adsorption bag and a rotating assembly, an adjusting shifting piece capable of adjusting the wind direction is installed at an air outlet of the pipeline body, and the arc-shaped filter plate used for filtering impurities in gas is installed in the pipeline body. According to the automobile dashboard air outlet peculiar smell detection self-cleaning device, dynamic interception is achieved through reciprocating swing of the arc-shaped filter plate, and the number of impurities entering an automobile is reduced; meanwhile, residual impurities on the filter plate are removed through the synergistic effect of the arc-shaped cleaning brush and the vibration auxiliary structure, the impurities are directly discharged out of the vehicle in cooperation with the micro suction fan, the situation that the impurities are accumulated to breed bacteria is avoided, and the limitation that traditional aromatherapy can only cover peculiar smell is overcome.

Description

Technical Field

[0001] This invention relates to the field of in-vehicle air quality detection, and more particularly to a self-cleaning device for detecting odors from the air vents of a car dashboard. Background Technology

[0002] With the rapid development of the automotive industry and the improvement of people's living standards, automobiles have become an important means of daily transportation, and the comfort and health of the in-car environment are receiving increasing attention from consumers. As a core component for regulating in-car temperature, humidity, and air circulation, the operating status of the automotive air conditioning system directly affects the driving and riding experience.

[0003] However, during long-term use, the car's air conditioning system draws in air from outside the vehicle, which contains fine impurities such as dust, pollen, and particulate matter. Some of these fine impurities can enter the car through the air conditioning ducts and tend to accumulate in the dead corners of the duct walls. Over time, these impurities can breed mold, bacteria, and other microorganisms, producing odors. These odors not only affect the comfort of the driver and passengers, but long-term inhalation may also pose potential health risks.

[0004] Current methods mostly involve placing air fresheners or solid air fresheners in the car. These methods can only mask the odor with fragrance and cannot fundamentally eliminate the source of the odor. To thoroughly clean the air conditioning system, it is necessary to disassemble the dashboard, air conditioning ducts, and other components. This process is not only time-consuming and labor-intensive, but also requires professional operation, increasing the user's time and financial costs.

[0005] Therefore, it is necessary to provide a new self-cleaning device for detecting odors in automotive dashboard air vents to solve the above-mentioned technical problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a self-cleaning device for detecting odors in the air vents of automotive dashboards. The self-cleaning device for detecting odors at the air vents of an automotive dashboard provided by this invention includes: a duct body, an arc-shaped filter plate, a drive assembly, an arc-shaped cleaning brush, an adsorption bag, and a rotating assembly. An adjustable damper for adjusting the airflow direction is installed at the air vent of the duct body. An arc-shaped filter plate for filtering impurities in the gas is installed inside the duct body. A drive assembly is installed between the duct body and the arc-shaped filter plate, driving the arc-shaped filter plate to reciprocate and dynamically intercept impurities in the gas. Arc-shaped cleaning brushes for cleaning the impurities intercepted by the arc-shaped filter plate are provided on both sides of the duct body. Adsorption bags are symmetrically arranged inside the duct body near the air vent. A rotating assembly is installed between the adsorption bags and the duct body, driving the adsorption bags to rotate and adsorb odors in the gas.

[0007] Preferably, the drive assembly includes: a motor, a rotating plate, and a movable frame. A mounting plate is fixedly connected to the top of the pipe body, and a motor is fixedly connected to the top of the mounting plate. The output end of the motor passes through the mounting plate and is fixedly connected to the rotating plate. A crossbar is fixedly connected to the top of the pipe body, and a movable frame is slidably connected to the outer wall of the crossbar. A groove is provided inside the movable frame, and the end of the rotating plate extends into the groove and is slidably connected to its inner wall. An arc-shaped groove is provided at the top of the pipe body, and a protruding rod is fixedly connected to the middle of the arc-shaped filter plate. The top end of the protruding rod passes through the arc-shaped groove and is placed inside the groove, and is slidably connected to its inner wall.

[0008] Preferably, mounting covers are fixedly connected to both sides of the pipe body, and electric push rods are symmetrically fixedly connected to the top of the mounting covers. The output ends of the electric push rods extend into the interior of the mounting covers and are fixedly connected to the arc-shaped cleaning brushes. The outer walls of the arc-shaped cleaning brushes are provided with bristles and fit against the inner walls of the arc-shaped filter plates. Limiting blocks are symmetrically fixedly connected to the side walls of the arc-shaped cleaning brushes. Guide rods corresponding to the limiting blocks are fixedly connected inside the mounting covers. The guide rods are placed inside the corresponding limiting blocks and are slidably connected to their inner walls.

[0009] Preferably, toothed blocks are fixedly connected at equal intervals to the outer wall of the arc-shaped filter plate, and springs corresponding to the positions of the toothed blocks are fixedly connected to the inner wall of the mounting cover. A gravity block is fixedly connected to the other end of each spring, and a rubber pad is provided on the outer wall of the gravity block.

[0010] Preferably, the side of the mounting cover away from the air outlet is connected to a connecting pipe, and a miniature suction fan is fixedly connected to the bottom of the pipe body. The input end of the suction fan is connected to the connecting pipe, and the output end is connected to the outside of the car through the pipe.

[0011] Preferably, the rotating assembly includes: a second motor, a driving pulley, a driven pulley, and a friction roller. The second motor is fixedly connected to the top end of the pipe body, and the driving pulley is fixedly connected to the output end of the second motor. Fixed plates are symmetrically fixedly connected inside the pipe body. Friction rollers are rotatably connected to the inner ends of the fixed plates that are close to each other. Driven pulleys are fixedly connected to the outer walls of the friction rollers. The driving pulley and the two driven pulleys are connected by belt drive.

[0012] Preferably, a mounting bracket is fixedly connected to the side wall of the adjusting lever, and both adsorption bags are installed inside the mounting bracket. A connecting rod is fixedly installed at the axis of each adsorption bag. A matching groove matching the friction roller is opened at the end of the connecting rod near the friction roller. A fan is fixedly connected to the end of the connecting rod near the adjusting lever.

[0013] Preferably, the mounting bracket is internally fixedly connected with a positioning rod, and the inner wall of the pipe body is symmetrically provided with limiting grooves that match the positioning rod.

[0014] Preferably, the pipe body has symmetrically opened mounting holes corresponding to the limiting grooves inside. A second spring is fixedly connected to the inner wall of the mounting hole, and a locking block is fixedly connected to the other end of the second spring. The locking block is slidably connected to the inner wall of the corresponding mounting hole.

[0015] Preferably, a wind-gathering hood is symmetrically and fixedly connected inside the pipe body near the adsorption pack.

[0016] Compared with related technologies, the self-cleaning device for detecting odors in automotive dashboard air vents provided by this invention has the following beneficial effects: The reciprocating oscillation of the arc-shaped filter plate achieves dynamic interception, which can more comprehensively capture fine dust and other impurities in the airflow and reduce the amount of impurities entering the car. At the same time, the synergistic effect of the arc-shaped cleaning brush and the vibration-assisted structure removes residual impurities on the filter plate, and the micro-suction fan directly discharges the impurities outside the car, avoiding the accumulation of impurities and the growth of mold and bacteria, thus solving the limitation of traditional air fresheners that can only mask odors. The adsorption pack is driven to rotate by a rotating component, which fully disperses the activated carbon particles inside. Combined with the airflow gathering effect of the wind shroud, it greatly increases the contact area with the air, efficiently adsorbs mold odors, harmful gases and other components, and significantly improves the air quality inside the vehicle. The device works in conjunction with the car's air conditioning system, activating filtration, cleaning, and deodorization functions simultaneously when the air conditioning is turned on, eliminating the need for manual operation by the user. The dynamic interception by the arc-shaped filter plate, the automatic cleaning by the cleaning brush, the automatic discharge of impurities, and the active deodorization by the adsorption pack are all completed in one integrated process, solving the problem of time-consuming and labor-intensive traditional manual disassembly and cleaning of air conditioning pipes. With its automatic cleaning function, the air outlet and duct interior can be kept clean for a long time, reducing the frequency of professional cleaning. At the same time, the easy-to-replace design of the adsorption pack requires no tools and can be operated by the user, further reducing maintenance costs. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the self-cleaning device for detecting odors in the air vents of an automotive dashboard provided by the present invention; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the mounting cover. Figure 3 for Figure 2 A schematic diagram of a partial cross-section of the pipeline body shown; Figure 4 for Figure 3 The diagram shows the structure at point A. Figure 5 for Figure 3 The diagram shows a cross-sectional view of the air outlet of the duct body. Figure 6 for Figure 5The diagram shows the structural schematic of the side of the adsorption pack. Figure 7 for Figure 6 The diagram shows the structure of the limiting groove. Figure 8 for Figure 5 The diagram shows the structure of the mounting bracket. Figure 9 for Figure 3 The diagram shows the structure of the bottom of the pipe body.

[0018] Numbered components in the diagram: 1. Pipe body; 2. Adjusting lever; 3. Arc-shaped filter plate; 4. Arc-shaped cleaning brush; 5. Adsorption pack; 6. Motor 1; 7. Rotating plate; 8. Moving frame; 9. Crossbar; 10. Protruding rod; 11. Mounting cover; 12. Electric push rod; 13. Guide rod; 14. Tooth block; 15. Spring 1; 16. Gravity block; 17. Connecting pipe; 18. Suction fan; 19. Motor 2; 20. Driving pulley; 21. Driven pulley; 22. Friction roller; 23. Mounting frame; 24. Connecting rod; 25. Mating groove; 26. Positioning rod; 27. Limiting groove; 28. Spring 2; 29. ​​Locking block; 30. Air concentrator cover; 31. Fan. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] Please see Figures 1 to 9 A self-cleaning device for detecting odors at the air vents of an automotive dashboard is disclosed. The device comprises: a duct body 1, an arc-shaped filter plate 3, a drive assembly, an arc-shaped cleaning brush 4, an adsorption pack 5, and a rotating assembly. An adjustable damper 2 for adjusting the airflow direction is installed at the air vent of the duct body 1. An arc-shaped filter plate 3 for filtering impurities in the gas is installed inside the duct body 1. A drive assembly is installed between the duct body 1 and the arc-shaped filter plate 3. The drive assembly drives the arc-shaped filter plate 3 to swing back and forth to dynamically intercept impurities in the gas. Arc-shaped cleaning brushes 4 for cleaning the impurities intercepted by the arc-shaped filter plate 3 are provided on both sides of the duct body 1. Adsorption packs 5 are symmetrically arranged inside the duct body 1 near the air vent. A rotating assembly is installed between the adsorption pack 5 and the duct body 1. The rotating assembly drives the adsorption pack 5 to rotate to adsorb odors in the gas. The adsorption pack 5 contains activated carbon particles, and the quantity is less than the capacity of the adsorption pack 5. The drive assembly includes: a motor 6, a rotating plate 7, and a movable frame 8. A mounting plate is fixedly connected to the top of the pipe body 1, and a motor 6 is fixedly connected to the top of the mounting plate. The output end of the motor 6 passes through the mounting plate and is fixedly connected to the rotating plate 7. A crossbar 9 is fixedly connected to the top of the pipe body 1. The movable frame 8 is slidably connected to the outer wall of the crossbar 9. A groove is provided inside the movable frame 8. The end of the rotating plate 7 extends into the groove and is slidably connected to its inner wall. An arc-shaped groove is provided at the top of the pipe body 1. A protruding rod 10 is fixedly connected to the middle of the arc-shaped filter plate 3. The top end of the protruding rod 10 passes through the arc-shaped groove and is placed inside the groove, and is slidably connected to its inner wall. Driven by motor 6, the moving frame 8 moves back and forth, causing the arc-shaped filter plate 3 to swing synchronously back and forth inside the pipe body 1. This dynamic interception method captures fine dust, particulate matter, and other impurities in the airflow, improving filtration efficiency. Both sides of the pipe body 1 are fixedly connected to the mounting cover 11. The top of the mounting cover 11 is symmetrically fixedly connected to the electric push rod 12. The output end of the electric push rod 12 extends into the interior of the mounting cover 11 and is fixedly connected to the arc-shaped cleaning brush 4. The outer wall of the arc-shaped cleaning brush 4 is provided with bristles and fits against the inner wall of the arc-shaped filter plate 3. The side wall of the arc-shaped cleaning brush 4 is symmetrically fixedly connected to the limit block. The interior of the mounting cover 11 is fixedly connected to the guide rod 13 corresponding to the limit block. The guide rod 13 is placed inside the corresponding limit block and is slidably connected to its inner wall. The outer wall of the arc-shaped filter plate 3 is fixedly connected to the toothed block 14 at equal intervals. The inner wall of the mounting cover 11 is fixedly connected to the spring 15 corresponding to the position of the toothed block 14. The other end of the spring 15 is fixedly connected to the gravity block 16. The outer wall of the gravity block 16 is provided with a rubber pad. The electric push rod 12 drives the arc-shaped cleaning brush 4 to move up and down. The bristles on the outer wall of the arc-shaped cleaning brush 4 fit tightly against the inner wall of the arc-shaped filter plate 3, brushing off the intercepted impurities. At the same time, the toothed block 14 on the outer wall of the arc-shaped filter plate 3 presses the gravity block 16, causing the spring 15 to bend and deform to generate a knocking force, which further dislodges the impurities remaining on the arc-shaped filter plate 3, forming a synergistic cleaning effect with the cleaning brush.

[0022] The side of the mounting cover 11 away from the air outlet is connected to a connecting pipe 17. A miniature suction fan 18 is fixedly connected to the bottom of the pipe body 1. The input end of the suction fan 18 is connected to the connecting pipe 17, and the output end is connected to the outside of the car through the pipe. The start-up of the suction fan 18 generates negative pressure, which sucks in the brushed-off impurities and discharges them directly outside the vehicle through the pipe connected to the output end of the suction fan 18, thus avoiding secondary pollution caused by residual impurities.

[0023] Please see Figures 5 to 8The rotating assembly includes: a second motor 19, a driving pulley 20, a driven pulley 21, and a friction roller 22. The second motor 19 is fixedly connected to the top end of the pipe body 1. The driving pulley 20 is fixedly connected to the output end of the second motor 19. Fixed plates are symmetrically fixedly connected inside the pipe body 1. Friction rollers 22 are rotatably connected to the inner ends of the fixed plates that are close to each other. Driven pulleys 21 are fixedly connected to the outer walls of the friction rollers 22. The driving pulley 20 and the two driven pulleys 21 are connected via belt drive. A mounting bracket 23 is fixedly connected to the side wall of the adjusting lever 2. Both adsorption bags 5 are installed inside the mounting bracket 23. A connecting rod 24 is fixedly installed at the axis of each adsorption bag 5. Each end of the connecting rod 24 near the friction roller 22 is provided with a matching groove 25 that matches the friction roller 22. Each end of the connecting rod 24 near the adjusting lever 2 is fixedly connected to a fan 31. A positioning rod 26 is fixedly connected inside the mounting bracket 23. A limiting groove 27 matching the positioning rod 26 is symmetrically opened on the inner wall of the pipe body 1. A mounting hole corresponding to the limiting groove 27 is symmetrically opened inside the pipe body 1. A spring 28 is fixedly connected to the inner wall of the mounting hole. A locking block 29 is fixedly connected to the other end of the spring 28. The locking block 29 is slidably connected to the inner wall of the corresponding mounting hole. A wind-gathering cover 30 is symmetrically fixedly connected inside the pipe body 1 near the adsorption pack 5. The activation of the rotating component causes the activated carbon particles inside the adsorption pack 5 to be fully dispersed as it rotates, increasing the contact area with the airflow and efficiently adsorbing moldy odors, harmful gases and other components in the air. At the same time, the air-gathering hood 30 inside the pipe body 1 can gather the airflow and enhance the contact efficiency between the adsorption pack 5 and the gas. The adsorption pack 5 is installed inside the mounting bracket 23. Through the cooperation of the positioning rod 26, the limiting groove 27, the locking block 29 and the spring, the adsorption pack 5 can be quickly installed and removed. Users can replace it without disassembling the dashboard, making the operation simple and convenient.

[0024] The working principle of the self-cleaning device for detecting odors in automotive dashboard air vents provided by this invention is as follows: When the vehicle's air conditioning system is turned on, the motor 6 mounted on the top mounting plate of the pipe body 1 operates synchronously, and its output end passes through the mounting plate to drive the rotating plate 7, which is fixedly connected, to rotate. Since the end of the rotating plate 7 extends into the sliding groove inside the movable frame 8, and the end of the movable frame 8 is slidably connected to the outer wall of the crossbar 9 fixedly mounted on the top of the pipe body 1, the circular motion of the rotating plate 7 is converted into the reciprocating linear motion of the movable frame 8 along the axis of the crossbar 9. The protruding rod 10, which is fixedly connected in the middle of the arc-shaped filter plate 3, passes through the arc-shaped groove opened at the top of the pipe body 1, and the top end is embedded in the sliding groove of the moving frame 8. When the moving frame 8 moves back and forth, it drives the protruding rod 10 to slide along the arc-shaped groove, thereby driving the arc-shaped filter plate 3 to swing back and forth synchronously inside the pipe body 1. It captures fine dust, particulate matter and other impurities in the airflow through dynamic interception, thereby improving the filtration efficiency. When the arc-shaped filter plate 3 swings into the mounting covers 11 on both sides of the pipe body 1, the electric push rod 12 at the top of the mounting cover 11 is activated. Its output end pushes the arc-shaped cleaning brush 4 to move up and down along the guide rod 13. The bristles on the outer wall of the arc-shaped cleaning brush 4 are in close contact with the inner wall of the arc-shaped filter plate 3, brushing off the intercepted impurities. At the same time, the toothed blocks 14 on the outer wall of the arc-shaped filter plate 3 gradually contact the gravity block 16 inside the mounting cover 11 and squeeze it, causing the spring 15 to bend and deform. When the toothed blocks 14 are separated from the gravity block 16, the spring 15 returns to its original position and drives the gravity block 16 to strike the adjacent toothed blocks 14. The resulting vibration causes the impurities remaining on the arc-shaped filter plate 3 to fall off further, forming a synergistic cleaning effect with the cleaning brush. At the same time, the miniature suction fan 18 at the bottom of the pipe body 1 starts, and generates negative pressure in the mounting cover 11 through the connecting pipe 17, sucking in the brushed impurities and directly discharging them outside the vehicle through the pipe connected to the output end of the suction fan 18, so as to avoid the residual impurities causing secondary pollution. As the airflow, after initial filtration, moves towards the outlet, the motor 19 at the top of the duct body 1 starts, and its output drives the active pulley 20 to rotate. The power is transmitted to two symmetrically arranged driven pulleys 21 via a belt, causing the friction rollers 22 fixed at the shaft of the driven pulleys 21 to rotate synchronously under the support of the fixed plate. The adsorption pack 5 inside the mounting bracket 23 fixed to the side wall of the adjusting lever 2 has a mating groove 25 at the end of the connecting rod 24 fixed at its shaft near the friction roller 22. The inner wall of the mating groove 25 is in close contact with the corresponding friction roller 22. The rotation of the friction roller 22 drives the connecting rod 24 and the adsorption pack 5 to rotate. The activated carbon particles inside the adsorption pack 5 are fully dispersed with the rotation, increasing the contact area with the airflow and efficiently adsorbing moldy odors, harmful gases and other components in the air. At the same time, the fan 31 fixedly connected to the end of the connecting rod 24 near the adjusting lever 2 rotates synchronously, accelerating the exhaust of the clean air that has been adsorbed for odors to the outlet. Meanwhile, the wind concentrator 30 inside the duct body 1 can gather the airflow and enhance the contact efficiency between the adsorption pack 5 and the gas. When the adsorption pack 5 reaches its service life and needs to be replaced, simply hold the adjusting lever 2 and pull it outward. The pulling force is transmitted to the positioning rod 26 through the mounting bracket 23. The positioning rod 26 moves outward along the limiting groove 27 on the inner wall of the pipe body 1, squeezing the locking block 29 to compress the second spring 28 and retract it into the mounting hole. After the positioning rod 26 is completely disengaged from the locking block 29, the second spring 28 releases its elasticity and pushes the locking block 29 back to its original position. Continue to pull the adjusting lever 2. During this process, the mating groove 25 at the end of the connecting rod 24 gradually disengages from the friction roller 22 until the mounting bracket 23 is removed from the pipe body. Remove the entire unit from the pipe body 1, then remove the old adsorption pack 5 and insert the new adsorption pack 5. Next, align the positioning rod 26 with the limiting groove 27 and push the adjusting lever 2 to reset the mounting bracket 23. During this process, the mating groove 25 at the end of the connecting rod 24 gradually contacts the friction roller 22. At the same time, the positioning rod 26 squeezes the locking block 29 and retracts it back into the mounting hole until it is fully inserted into the pipe body 1. At this time, the spring 28 pushes the locking block 29 to reset and lock the positioning rod 26 to complete the fixation. The friction roller 22 is tightly attached to the inner wall of the mating groove 25 to ensure that the adsorption pack 5 works stably.

[0025] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A self-cleaning device for detecting odors in automotive dashboard air vents, characterized in that, include: The duct body (1) has an adjustable damper (2) at the air outlet of the duct body (1). Arc-shaped filter plate (3): An arc-shaped filter plate (3) for filtering impurities in the gas is installed inside the pipe body (1). A drive assembly is installed between the pipe body (1) and the arc filter plate (3). The drive assembly drives the arc filter plate (3) to swing back and forth to dynamically intercept impurities in the gas. Arc-shaped cleaning brush (4): Arc-shaped cleaning brush (4) is provided on both sides of the pipe body (1) for cleaning impurities intercepted by the arc-shaped filter plate (3). Adsorption packs (5) are symmetrically arranged inside the pipe body (1) near the air outlet. A rotating assembly is installed between the adsorption pack (5) and the pipeline body (1). The rotating assembly drives the adsorption pack (5) to rotate to adsorb odors in the gas.

2. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 1, characterized in that, The drive assembly includes: motor 1 (6), rotating plate (7) and moving frame (8). The top of the pipe body (1) is fixedly connected to the mounting plate, and the top of the mounting plate is fixedly connected to the motor 1 (6). The output end of the motor 1 (6) passes through the mounting plate and is fixedly connected to the rotating plate (7). The top of the pipe body (1) is fixedly connected to the crossbar (9). The outer wall of the crossbar (9) is slidably connected to the moving frame (8). The moving frame (8) has a groove inside. The end of the rotating plate (7) extends into the groove and is slidably connected to its inner wall. The top of the pipe body (1) has an arc groove. The middle part of the arc filter plate (3) is fixedly connected to the protruding rod (10). The top end of the protruding rod (10) passes through the arc groove and is placed inside the groove and is slidably connected to its inner wall.

3. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 2, characterized in that, Both sides of the pipe body (1) are fixedly connected to the mounting cover (11). The top of the mounting cover (11) is symmetrically fixedly connected to the electric push rod (12). The output end of the electric push rod (12) extends into the interior of the mounting cover (11) and is fixedly connected to the arc-shaped cleaning brush (4). The outer wall of the arc-shaped cleaning brush (4) is provided with bristles and fits against the inner wall of the arc-shaped filter plate (3). The side wall of the arc-shaped cleaning brush (4) is symmetrically fixedly connected to the limit block. The interior of the mounting cover (11) is fixedly connected to the guide rod (13) corresponding to the limit block. The guide rod (13) is placed inside the corresponding limit block and is slidably connected to its inner wall.

4. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 3, characterized in that, The outer wall of the arc-shaped filter plate (3) is fixedly connected with toothed blocks (14) at equal intervals. The inner wall of the mounting cover (11) is fixedly connected with springs (15) corresponding to the positions of the toothed blocks (14). The other end of the springs (15) is fixedly connected with a gravity block (16). The outer wall of the gravity block (16) is provided with a rubber pad.

5. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 4, characterized in that, The mounting cover (11) is connected to a connecting pipe (17) on the side away from the air outlet. A miniature suction fan (18) is fixedly connected to the bottom of the pipe body (1). The input end of the suction fan (18) is connected to the connecting pipe (17), and the output end is connected to the outside of the car through the pipe.

6. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 1, characterized in that, The rotating assembly includes: motor 2 (19), drive pulley (20), driven pulley (21) and friction roller (22). Motor 2 (19) is fixedly connected to the top end of the pipe body (1). Drive pulley (20) is fixedly connected to the output end of motor 2 (19). Fixed plates are symmetrically fixedly connected inside the pipe body (1). Friction roller (22) is rotatably connected to the inner end of the fixed plates that are close to each other. Driven pulley (21) is fixedly connected to the outer wall of the friction roller (22). Drive pulley (20) and two driven pulleys (21) are connected by belt drive.

7. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 6, characterized in that, A mounting bracket (23) is fixedly connected to the side wall of the adjusting lever (2). Both adsorption bags (5) are installed inside the mounting bracket (23). A connecting rod (24) is fixedly installed at the axis of each adsorption bag (5). A matching groove (25) matching the friction roller (22) is opened at the end of the connecting rod (24) near the friction roller (22). A fan (31) is fixedly connected to the end of the connecting rod (24) near the adjusting lever (2).

8. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 7, characterized in that, The mounting bracket (23) is fixedly connected to a positioning rod (26), and the inner wall of the pipe body (1) is symmetrically provided with limiting grooves (27) that match the positioning rod (26).

9. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 8, characterized in that, The pipe body (1) has symmetrically opened mounting holes corresponding to the limiting groove (27) inside. A spring (28) is fixedly connected to the inner wall of the mounting hole. A locking block (29) is fixedly connected to the other end of the spring (28), and the locking block (29) is slidably connected to the inner wall of the corresponding mounting hole.

10. The self-cleaning device for detecting odors at the air vents of an automotive dashboard according to claim 1, characterized in that, A wind-gathering hood (30) is symmetrically fixedly connected inside the pipe body (1) near the adsorption pack (5).

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