Air filtering self-cleaning type automobile grille

Abstract

The invention relates to the technical field of automobile grilles, in particular to an air filtering self-cleaning type automobile grille which comprises a grille frame and further comprises grille blades arranged in the middle of the grille frame, the grille blades are evenly arranged in parallel in the vertical direction of the grille frame, and a horizontal vent groove is formed between every two adjacent grille blades. And the outer circulation frame is arranged on the outer side of the grating frame. Through the horizontal vent groove and the annular filter screen, it is ensured that air can flow through smoothly to help air inflow and heat dissipation of an engine, meanwhile, outside dust, insects and other sundries are effectively blocked, and therefore good ventilation and heat dissipation performance is kept; the annular filter screen can continuously and circularly rotate and is thoroughly cleaned by the spiral rolling brush when passing through the cleaning opening, so that the problem that a traditional filter screen is easy to block is solved, and the requirement of manual maintenance is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile grilles, and in particular to an air filtering self-cleaning automobile grille. Background Art

[0002] With the development of the automobile industry and the improvement of people's quality of life, the requirements for automobile performance are also increasing. Among them, the efficiency of the automobile cooling system directly affects the working state of the engine and the safety and reliability of the whole vehicle. The traditional automobile air intake grille design mainly focuses on the appearance and basic ventilation and cooling functions, and lacks an effective air filtration mechanism. During the driving process of the vehicle, dust, plant debris, insects and other debris in the external environment can easily enter the interior of the car directly through the air intake grille and adhere to the radiator surface or engine components. This not only affects the air intake and heat dissipation effects, but may also cause damage to the engine, thereby affecting the overall performance and service life of the car.

[0003] In order to improve this situation, some improved designs have introduced filter structures to block large particles. However, this additional filter layer has exposed new problems in actual applications, namely, the filter is easily blocked by dust and other tiny particles, resulting in reduced ventilation and affecting heat dissipation efficiency. What is more troublesome is that these filters require regular manual cleaning to maintain their effectiveness, which increases the user's maintenance cost and workload, especially when used in harsh environments, such as dusty weather or areas with many insect pests. This problem is particularly prominent. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an air filtering self-cleaning automobile grille to solve the problem that the current automobile grille filter with a filtering structure is easily blocked by dust and other tiny particles and requires regular manual cleaning to maintain its effectiveness.

[0005] Based on the above purpose, the present invention provides an air filtering self-cleaning automobile grille, including a grille frame, and also including:

[0006] A grille blade is arranged in the middle of the grille frame, wherein a plurality of grille blades are evenly arranged in parallel along the vertical direction of the grille frame, and horizontal ventilation grooves are arranged between adjacent grille blades;

[0007] An external circulation frame is arranged on the outside of the grid frame, and a plurality of circulation driving rollers are connected to the upper and lower ends of the external circulation frame. A closed shell is arranged on the outside of the external circulation frame, and air inlet openings are arranged in the middle of the front and rear sides of the closed shell;

[0008] A closed cleaning cylinder is arranged on the top outer side and the bottom inner side of the annular filter screen, a cleaning opening is arranged in the middle of the closed cleaning cylinder, a horizontal rotating roller is arranged inside the closed cleaning cylinder, and spiral roller brushes are symmetrically arranged on the left and right sides of the outer side of the horizontal rotating roller;

[0009] The annular filter screen is arranged on the outer side of the circulating drive roller, and the grid frame is located in the middle of the inner side of the annular filter screen. The circulating drive roller drives the annular filter screen to circulate around the outer circulating frame and pass through the cleaning opening of the closed cleaning cylinder. At the same time, the spiral roller brush is driven to rotate by the horizontal rotating roller to clean the inner and outer sides of the annular filter screen.

[0010] Furthermore, a dust removal conveying pipe is connected to the center of the closed cleaning cylinder, a dust exhaust interface is provided at the outer end of the dust removal conveying pipe, driving impellers are connected to the left and right ends of the horizontal rotating roller, a central driving shaft is connected to the middle of the driving impeller, a cleaning motor is connected to the shaft end of the central driving shaft, and the cleaning motor drives the horizontal rotating roller and the driving impeller to rotate synchronously through the central driving shaft.

[0011] Furthermore, detection and delivery pipes are correspondingly provided on both inner and outer sides of the front face of the annular filter screen, a gas collection detection cover is connected to the front end of the detection and delivery pipe located on the outer side, and wind speed sensors are provided in the middle of the detection and delivery pipes on both inner sides.

[0012] Furthermore, a closed sleeve is nested and slidably provided at one end of the detection and delivery tube close to the annular filter, a flexible closed ring is arranged around the outer side of the opening of one end of the closed sleeve close to the annular filter, a linkage magnetic ring is connected to the rear end of the closed sleeve, a closing spring is arranged on the rear side of the linkage magnetic ring, a reset electromagnet is arranged on the rear side of the closing spring, and the reset electromagnet is fixedly connected to the detection and delivery tube.

[0013] Furthermore, a front air inlet and a rear air outlet are respectively provided at the front and rear ends of the horizontal ventilation groove, a baffle sealing strip is provided in the middle of the front air inlet and the rear air outlet, an adjusting shaft is connected to the bottom of the front air inlet and the top of the rear air outlet, an adjusting baffle is connected to the outer side of the adjusting shaft, the adjusting baffle and the baffle sealing strip are cooperated with each other, a reset limit block is provided in the middle of the adjusting baffle, and a reset folding spring is connected in the middle of the adjusting shaft.

[0014] Furthermore, an inner circulation frame is arranged between the outer circulation frame and the grid frame, a conveying guide groove is arranged around the middle of the inner circulation frame, a traction belt is arranged around the outer side of the conveying guide groove, belt driving wheels are connected to the inner sides of the upper and lower ends of the traction belt, a synchronous driving shaft is connected to the center of the belt driving wheel, a driving motor is connected to the middle of the synchronous driving shaft, and the driving motor drives the belt driving wheels on the left and right sides to rotate synchronously through the synchronous driving shaft, thereby driving the traction belts on both sides to rotate synchronously around the inner circulation frame.

[0015] Furthermore, a driving wheel magnet is installed in the middle of the belt driving wheel, and a Hall sensor is arranged at intervals on the outer side of the belt driving wheel, and the Hall sensor and the driving wheel magnet are arranged in coordination with each other.

[0016] Furthermore, a plurality of synchronous adjustment frames are evenly arranged around the outer side of the inner circulation frame, and guide sliders are connected to the left and right ends of the synchronous adjustment frame. The synchronous adjustment frame is slidably connected to the inner circulation frame through the guide slider and the conveying guide groove, and the guide slider is connected to the traction belt. The traction belt drives all the synchronous adjustment frames to move synchronously around the inner circulation frame through the guide slider, and when the synchronous adjustment frame passes through the adjustment baffle, it pushes the adjustment baffle to rotate along the adjustment shaft to gradually close the front air inlet and the rear air outlet.

[0017] Furthermore, the synchronous adjustment frame is evenly arranged with a plurality of pushing sleeves on one side close to the grille frame, an adjusting pushing rod is slidably nested inside the pushing sleeve, the rear end of the adjusting pushing rod is connected with a pushing spring, the front end of the adjusting pushing rod is connected with an adjusting pushing wheel, the adjusting pushing wheel and the adjusting baffle are cooperated with each other, and when the synchronous adjustment frame drives the adjusting pushing wheel to move synchronously through the pushing sleeve and the adjusting pushing rod and passes through the adjusting baffle, the adjusting baffle is pushed by the adjusting pushing wheel to rotate along the adjusting shaft to gradually close the front air inlet and the rear air outlet.

[0018] Furthermore, a sliding engagement groove is provided on one side of the synchronous adjustment frame close to the annular filter screen, a horizontal cleaning brush is slidably engaged with the inner side of the sliding engagement groove, and a buffer spring is provided on the rear side of the horizontal cleaning brush.

[0019] Beneficial effects of the present invention: As can be seen from the above, the air-filtering self-cleaning automobile grille provided by the present invention ensures that air can flow smoothly through the horizontal ventilation grooves and the annular filter to help cool the engine and radiator, while effectively blocking external dust, insects and other debris, thereby maintaining good ventilation and heat dissipation performance, and adopts a combination of a circulating drive roller and a closed cleaning cylinder so that the annular filter can continuously circulate and rotate, and is thoroughly cleaned by a spiral roller brush when passing through the cleaning opening. It not only solves the problem of easy clogging of traditional filter nets, but also greatly reduces the need for manual maintenance, thereby improving the user experience. In addition, due to the self-cleaning mechanism, the annular filter is not easily contaminated or damaged, so its service life is longer than that of ordinary filters. At the same time, it also protects the radiator and engine from being invaded by impurities, indirectly improving the stability and durability of the entire vehicle system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the internal structure of a closed housing according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the front structure of an embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the rear structure of an embodiment of the present invention;

[0024] Figure 4 It is a schematic structural diagram of a longitudinal section of an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of an annular filter screen according to an embodiment of the present invention;

[0026] Figure 6 A schematic structural diagram of a grid frame according to an embodiment of the present invention;

[0027] Figure 7 It is a structural schematic diagram of a closed cleaning cylinder according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic structural diagram of an inner circulation frame according to an embodiment of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of a synchronous adjustment frame according to an embodiment of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the detection and delivery pipe according to an embodiment of the present invention.

[0031] The markings in the figure are:

[0032] 1. Grille frame; 101. Grille blades; 102. Horizontal ventilation slots; 103. Front air inlet; 104. Rear air outlet; 105. Baffle sealing strip; 2. Adjustment baffle; 201. Adjustment shaft; 202. Reset folding spring; 203. Reset limit block; 3. External circulation frame; 301. Annular filter; 302. Circulation drive roller; 303. Circulation motor; 304. Closed shell; 305. Air inlet opening; 306. Protective grille; 4. Closed cleaning cylinder; 401. Cleaning opening; 402. Dust removal conveying pipe; 403. Dust exhaust interface; 5. Horizontal rotating roller; 501. Spiral roller brush; 502. Driving impeller; 503. Central driving shaft; 504. Cleaning motor ; 6. Detection and conveying pipe; 601. Gas collection and detection cover; 602. Closed sleeve; 603. Flexible closed ring; 604. Linked magnetic ring; 605. Closed spring; 606. Reset electromagnet; 607. Wind speed sensor; 7. Internal circulation frame; 701. Conveying guide groove; 702. Traction belt; 703. Belt driving wheel; 704. Driving wheel magnet; 705. Hall sensor; 706. Synchronous driving shaft; 707. Driving motor; 8. Synchronous adjustment frame; 801. Guide slider; 802. Sliding fitting groove; 803. Buffer spring; 804. Horizontal cleaning brush; 9. Top pressure sleeve; 901. Adjust the top pressure rod; 902. Adjust the top pressure wheel; 903. Top pressure spring. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, an air filtering self-cleaning automobile grille includes a grille frame 1 and also includes:

[0036] The grille blades 101 are arranged in the middle of the grille frame 1. The multiple grille blades 101 are evenly arranged in parallel along the vertical direction of the grille frame 1. Horizontal ventilation slots 102 are arranged between adjacent grille blades 101.

[0037] The outer circulation frame 3 is arranged outside the grid frame 1, and a plurality of circulation driving rollers 302 are connected to the upper and lower ends of the outer circulation frame 3. A closed shell 304 is arranged outside the outer circulation frame 3, and air inlet openings 305 are arranged in the middle of the front side and the rear side of the closed shell 304;

[0038] A closed cleaning cylinder 4 is arranged on the top outer side and the bottom inner side of the annular filter 301, a cleaning opening 401 is arranged in the middle of the closed cleaning cylinder 4, a horizontal rotating roller 5 is arranged inside the closed cleaning cylinder 4, and spiral roller brushes 501 are symmetrically arranged on the left and right sides of the outer side of the horizontal rotating roller 5;

[0039] The annular filter screen 301 is arranged on the outer side of the circulating drive roller 302, and the grid frame 1 is located in the middle of the inner side of the annular filter screen 301. The circulating drive roller 302 drives the annular filter screen 301 to circulate around the outer circulation frame 3 and pass through the cleaning opening 401 of the closed cleaning cylinder 4. At the same time, the spiral roller brush 501 is driven to rotate through the horizontal rotating roller 5 to clean the inner and outer sides of the annular filter screen 301.

[0040] In this embodiment, the device uses a grille frame 1 as the basic supporting structure of the entire device. The grille frame 1 provides an installation platform for other components. A plurality of grille blades 101 evenly distributed in the vertical direction are provided inside the grille frame 1. Horizontal ventilation grooves 102 are formed between these blades to guide air flow. The outer circulation frame 3 is located outside the grille frame 1, and includes a circulation drive roller 302 connected at the upper and lower ends. The outer circulation frame 3 is surrounded by a closed shell 304. Air inlet openings 305 are provided on the front and rear sides of the shell. A protective grille 306 is also provided in the middle of the air inlet opening 305 to facilitate air to flow into and pass through the annular filter 301. The annular filter 301 surrounds the outer circulation frame 3 to cover the entire air intake path. The circulation drive roller 302 is connected to a circulation motor 303 provided at the shaft end. The drive rotates, and then the annular filter 301 realizes continuous movement through the action of the circulating driving roller 302. In the process of completing one cycle, it will successively pass through the air inlet area to receive fresh air and the cleaning area to be cleaned by the spiral roller brush 501. This design realizes the effective filtration of the air entering the interior of the vehicle and can maintain the clean state of the filter without human intervention. The device is also provided with a closed cleaning cylinder 4, which is installed on the outer side of the top and the inner side of the bottom of the annular filter 301, and has a cleaning opening 401 in the center. A horizontal rotating roller 5 is installed inside the cleaning cylinder, and symmetrical spiral roller brushes 501 are arranged on both sides. When the annular filter 301 passes through the cleaning opening 401, the spiral roller brush 501 will rotate driven by the horizontal rotating roller 5 to clean the inner and outer surfaces of the filter.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, a dust removal conveying pipe 402 is installed at the center of the closed cleaning cylinder 4, one end of the pipe is connected to the cleaning area in the closed cleaning cylinder 4, and the other end is connected to the pipe through the dust exhaust interface 403 and extends to the low-pressure area such as the bottom or side of the car. When the vehicle is driving, due to the aerodynamic effect, a relatively low pressure area will be formed at the bottom or side of the car, which is helpful to smoothly discharge the cleaned dust and debris out of the car through the dust removal conveying pipe 402, and the left and right ends of the horizontal rotating roller 5 are respectively equipped with a driving impeller 502, and a central driving shaft 503 runs through the middle of the two impellers. The end of the shaft is connected to the cleaning motor 504. After the cleaning motor 504 is started, the driving impeller 502 will drive the horizontal rotating roller 5 and the driving impellers 502 on both sides to rotate synchronously through the central driving shaft 503. As the driving impellers 502 rotate at high speed, they will generate a continuous negative pressure environment inside the closed cleaning cylinder 4, further promoting the suction and discharge of dust and debris. The device utilizes the natural low-pressure area formed at the bottom or side of the car during driving, combined with the specially designed dust exhaust interface 403, to effectively extract the dust and debris generated during the cleaning process, ensuring the thoroughness and safety of the cleaning work.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, the device sets a detection delivery pipe 6 on the front outer side of the annular filter 301, and its front end is connected to an air collection detection cover 601. The cover is designed to effectively capture untreated air samples from the air inlet direction to ensure the authenticity and accuracy of the measurement results. At the same time, a detection delivery pipe 6 is also set on the front inner side of the annular filter 301, and a wind speed sensor 607 is installed in the middle of this pipe. This sensor is responsible for measuring the air mass flow rate and speed flowing into the engine compartment after being purified by the filter. When the vehicle is running, the external unfiltered air first enters the air collection detection cover 601, and then reaches the first wind speed sensor 607 through the outer detection delivery pipe 6 for initial measurement; after that, the air passes through The speed change inside the annular filter 301 is measured again, and any significant difference between the two wind speed sensors 607 will be recognized by the system as a signal of filter contamination or blockage. By comparing the data difference at these two positions, the degree of contamination and blockage of the annular filter 301 can be accurately determined, so that the system can respond in time and start the cleaning program to ensure that the filter is always in the best working condition. In addition, based on the intelligent detection function of wind speed changes, the cleaning motor 504 and the drive impeller 502 can be automatically activated when the filter reaches the preset blockage threshold to start the self-cleaning process, which not only improves the automation level of the system, but also effectively avoids unnecessary frequent cleaning operations, saves energy and extends the life of mechanical components.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, preferably, the closed sleeve 602 of the device can slide and fit tightly with the annular filter 301 during detection, ensuring that the data collected by the wind speed sensors 607 on the inner and outer sides are more accurate and reliable. When detection is required, the reset electromagnet 606 loses power, and the closed spring 605 pushes the closed sleeve 602 to slide and fit with the annular filter 301. When the annular filter 301 rotates for cleaning, the reset electromagnet 606 is energized to attract the linkage magnetic ring 604, so that the closed sleeve 602 is quickly reset without affecting the normal movement of the annular filter 301.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, preferably, the device is provided with a front air inlet 103 and a rear air outlet 104 at the front and rear ends of each horizontal ventilation groove 102, respectively. These two openings are the main channels for air circulation. In order to ensure that the air flows through the annular filter 301 for effective filtration, a baffle sealing strip 105 is provided in the middle of the front air inlet 103 and the rear air outlet 104 to provide necessary sealing effect. The bottom of the front air inlet 103 and the top of the rear air outlet 104 are respectively connected with an adjusting shaft 201, and the outer side of the shaft is connected with an adjusting baffle 2. The adjusting baffle 2 and the baffle sealing strip 105 are arranged in cooperation with each other. The angle of the adjusting baffle 2 can be changed by rotating the adjusting shaft 201, thereby adjusting the degree of shielding the front air inlet 103 or the rear air outlet 104, so as to flexibly control the overall ventilation efficiency of the grille, allowing the vehicle to optimize the air intake volume in real time according to actual needs, such as driving speed, external temperature, engine load, etc., to ensure the best heat dissipation performance, and by accurately adjusting the ventilation efficiency, it is possible to reduce unnecessary air resistance while ensuring the cooling effect, thereby reducing wind resistance loss, improving fuel economy or the cruising range of electric vehicles, and the baffle sealing strip 105 arranged between the front air inlet 103 and the rear air outlet 104 and the adjusting baffle 2 The close fit between them ensures a good sealing effect, prevents unfiltered air from bypassing, and avoids the intrusion of dust and other debris. A reset limit block 203 is set in the middle of the adjusting baffle 2 to limit the maximum rotation angle of the adjusting baffle 2 to prevent its excessive rotation from affecting the function. At the same time, a reset folding spring 202 is connected in the middle of the adjusting shaft 201, which can pull the adjusting baffle 2 back to the initial position when no external force is applied. The design of the reset limit block 203 and the reset folding spring 202 ensures that the adjusting baffle 2 can return to a safe position under any circumstances, avoiding excessive opening or closing due to unexpected situations, thereby protecting the safe operation of the engine and other key components.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, the device adds an inner circulation frame 7 between the outer circulation frame 3 and the grid frame 1, and a conveying guide groove 701 is arranged around the middle of the inner circulation frame 7. The conveying guide groove 701 is used to guide the guide slider 801 on the synchronous adjustment frame 8 to slide, ensuring that all the synchronous adjustment frames 8 can move smoothly along the predetermined path. A traction belt 702 is arranged around the outer side of the conveying guide groove 701, and the inner sides of the upper and lower ends of the belt are connected to belt driving wheels 703. The center of the belt driving wheel 703 is connected to a synchronous driving shaft 706, which is connected to a driving motor 707. After the driving motor 707 is started, the synchronous driving shaft 706 drives the belt driving wheels 703 on the left and right sides to rotate synchronously, thereby pulling the traction belts 702 on both sides to move synchronously around the inner circulation frame 7. In order to achieve accurate position detection and feedback control, a driving wheel magnet 704 is installed in the middle of each belt driving wheel 703, and a plurality of Hall sensors 705 are arranged at intervals on the outer side of the belt driving wheel 703. These Hall sensors 705 are connected to the driving wheel magnet The iron 704 cooperates with each other. When the belt drive wheel 703 rotates, the Hall sensor 705 will sense the position change of the magnet and transmit the signal to the control system for monitoring the working state of the belt drive wheel 703 and adjusting the speed and direction of the drive motor 707. A plurality of synchronous adjustment frames 8 are evenly arranged around the outer side of the inner circulation frame 7. The left and right ends of each synchronous adjustment frame 8 are connected with guide sliders 801. These guide sliders 801 are embedded in the conveying guide groove 701, so that the synchronous adjustment frame 8 can be driven by the traction belt 702 to slide smoothly along the inner circulation frame 7. At the same time, the guide slider 801 is connected to the traction belt 702 to ensure that the movements of all synchronous adjustment frames 8 are synchronized. When the synchronous adjustment frame 8 passes through the adjustment baffle 2, it will push the adjustment baffle 2 to rotate along the adjustment shaft 201, gradually closing the front air inlet 103 and the rear air outlet 104. When moving in the opposite direction, the reset folding spring 202 pushes the adjustment baffle 2 to open, thereby ensuring that the movements of all adjustment baffles 2 are highly consistent, and realizing precise regulation of the overall ventilation efficiency of the grille.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, the device evenly arranges a plurality of pressing sleeves 9 on one side of the synchronous adjustment frame 8 close to the grid frame 1, and an adjusting pressing rod 901 is nested and slidably arranged in each pressing sleeve 9. This design allows the adjusting pressing rod 901 to slide freely in the pressing sleeve 9 to adapt to the adjusting baffle 2 in different positions and ensure that it is always under appropriate pressure, and the rear end of the adjusting pressing rod 901 is connected to a pressing spring 903, and the front end is equipped with an adjusting pressing wheel 902. The function of the pressing spring 903 is to provide appropriate preload force so that the adjusting pressing wheel 902 always maintains a slight contact with the adjusting baffle 2; and the adjusting pressing wheel 902 is responsible for smoothly pushing the adjusting baffle 2 to rotate along the adjusting shaft 201 during the movement of the synchronous adjustment frame 8. When the synchronous adjustment frame 8 passes through the traction belt 702 When driven to move around the inner circulation frame 7, the adjusting pressing rod 901 in the pressing sleeve 9 will extend out and contact with the adjusting baffle 2 under the action of the buffer spring 803. As the synchronous adjusting frame 8 continues to move, the adjusting pressing wheel 902 gradually pushes the adjusting baffle 2 to rotate along the adjusting shaft 201, and finally achieves the effect of gradually closing the front air inlet 103 and the rear air outlet 104. In this process, the rolling contact mode of the adjusting pressing wheel 902 greatly reduces the friction force and ensures the smoothness of the movement. At the same time, the buffer spring 803 provides the necessary buffering effect to prevent damage or jamming caused by excessive thrust.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, preferably, the device is provided with a sliding fitting groove 802 on one side of the synchronous adjustment frame 8 close to the annular filter 301, and a horizontal cleaning brush 804 is slidably provided in the groove. The horizontal cleaning brush 804 can slide freely in the sliding fitting groove 802 to ensure that it always maintains a good contact state with the inner side of the annular filter 301, and a buffer spring 803 is provided on the rear side of the horizontal cleaning brush 804 to provide appropriate thrust so that the horizontal cleaning brush 804 can stably fit the surface of the annular filter 301. The presence of the buffer spring 803 not only ensures appropriate contact pressure during the cleaning process, but also absorbs certain vibrations and impacts to protect the cleaning brush and the annular filter 301 from damage. The horizontal cleaning brush 804 always maintains contact with the inner side of the annular filter 301 and moves with the synchronous adjustment frame 8, ensuring that the inner side of the annular filter 301 can be continuously and automatically cleaned, which not only improves the cleaning efficiency but also reduces the problem of decreased filtering effect due to dust accumulation.

[0048] When in use, the device uses the grille frame 1 as the basic support structure of the entire device. The grille frame 1 provides an installation platform for other components. A plurality of grille blades 101 evenly distributed in the vertical direction are arranged inside the grille frame 1. Horizontal ventilation grooves 102 are formed between these blades to guide air flow. The outer circulation frame 3 is located outside the grille frame 1, and includes a circulation drive roller 302 connected at the upper and lower ends. The outer circulation frame 3 is surrounded by a closed shell 304. Air inlet openings 305 are arranged on the front and rear sides of the shell so that air can flow into and pass through the annular filter 301. The annular filter 301 surrounds the outer circulation frame 3 to cover the entire air inlet path. The annular filter 301 is driven by the circulation drive roller 302. It is used to achieve continuous movement. In the process of completing a cycle, it will pass through the air intake area to receive fresh air and the cleaning area to be cleaned by the spiral roller brush 501. This design realizes the effective filtration of the air entering the interior of the vehicle and can maintain the clean state of the filter without human intervention. The device is also provided with a closed cleaning cylinder 4, which is installed on the outer side of the top and the inner side of the bottom of the annular filter 301, and has a cleaning opening 401 in the center. A horizontal rotating roller 5 is installed inside the cleaning cylinder, and symmetrical spiral roller brushes 501 are provided on both sides. When the annular filter 301 passes through the cleaning opening 401, the spiral roller brush 501 will rotate driven by the horizontal rotating roller 5 to clean the inner and outer surfaces of the filter.

[0049] The air filtering self-cleaning automobile grille provided by the present invention ensures that air can flow smoothly through the horizontal ventilation grooves 102 and the annular filter 301 to help cool the engine and radiator, while effectively blocking external dust, insects and other debris, thereby maintaining good ventilation and heat dissipation performance, and adopts a combination of a circulating drive roller 302 and a closed cleaning cylinder 4, so that the annular filter 301 can continue to circulate and rotate, and is thoroughly cleaned by the spiral roller brush 501 when passing through the cleaning opening 401, which not only solves the problem of easy clogging of traditional filter nets, but also greatly reduces the need for manual maintenance, thereby improving the user experience, and because of the self-cleaning mechanism, the annular filter 301 is not easily contaminated or damaged, so its service life is longer than that of ordinary filters, and it also protects the radiator and engine from being invaded by impurities, indirectly improving the stability and durability of the entire vehicle system.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air filtering self-cleaning automobile grille, comprising a grille frame (1), characterized in that: Also includes: A grille blade (101) is arranged in the middle of the grille frame (1), a plurality of grille blades (101) are evenly arranged in parallel along the vertical direction of the grille frame (1), and horizontal ventilation grooves (102) are arranged between adjacent grille blades (101); An external circulation frame (3) is arranged on the outside of the grid frame (1), a plurality of circulation drive rollers (302) are connected to the upper and lower ends of the external circulation frame (3), a closed shell (304) is arranged on the outside of the external circulation frame (3), and air inlet openings (305) are arranged in the middle of the front and rear sides of the closed shell (304); An annular filter screen (301) is arranged on the outside of the circulating drive roller (302), and the grid frame (1) is located in the middle of the inner side of the annular filter screen (301); A closed cleaning cylinder (4) is arranged on the top outer side and the bottom inner side of the annular filter (301), a cleaning opening (401) is arranged in the middle of the closed cleaning cylinder (4), a horizontal rotating roller (5) is arranged inside the closed cleaning cylinder (4), and spiral roller brushes (501) are symmetrically arranged on the left and right sides of the outer side of the horizontal rotating roller (5); The circulating driving roller (302) drives the annular filter screen (301) to circulate around the outer circulation frame (3) and pass through the cleaning opening (401) of the closed cleaning cylinder (4) by rotating, and at the same time drives the spiral roller brush (501) to rotate through the horizontal rotating roller (5) to clean the inner and outer sides of the annular filter screen (301).

2. The air filtering self-cleaning automobile grille according to claim 1, characterized in that: A dust removal conveying pipe (402) is connected to the center of the closed cleaning cylinder (4), and a dust exhaust interface (403) is provided at the outer end of the dust removal conveying pipe (402). The left and right ends of the horizontal rotating roller (5) are connected to driving impellers (502). A central driving shaft (503) is connected in the middle of the driving impeller (502), and a cleaning motor (504) is connected to the shaft end of the central driving shaft (503). The cleaning motor (504) drives the horizontal rotating roller (5) and the driving impeller (502) to rotate synchronously through the central driving shaft (503).

3. The air filtering self-cleaning automobile grille according to claim 1, characterized in that: Detection and delivery pipes (6) are correspondingly arranged on both inner and outer sides of the front surface of the annular filter screen (301); a gas collection detection cover (601) is connected to the front end of the detection and delivery pipe (6) located on the outer side, and wind speed sensors (607) are arranged in the middle of the detection and delivery pipes (6) on both inner sides.

4. The air filtering self-cleaning automobile grille according to claim 3, characterized in that: A closed sleeve (602) is slidably nested at one end of the detection and delivery pipe (6) close to the annular filter (301); a flexible closed ring (603) is arranged around the outer side of the opening of one end of the closed sleeve (602) close to the annular filter (301); a linkage magnetic ring (604) is connected to the rear end of the closed sleeve (602); a closed spring (605) is arranged on the rear side of the linkage magnetic ring (604); a reset electromagnet (606) is arranged on the rear side of the closed spring (605); and the reset electromagnet (606) is fixedly connected to the detection and delivery pipe (6).

5. The air filtering self-cleaning automobile grille according to claim 1, characterized in that: The front and rear ends of the horizontal ventilation groove (102) are respectively provided with a front air inlet (103) and a rear air outlet (104); a baffle sealing strip (105) is provided in the middle of the front air inlet (103) and the rear air outlet (104); the bottom of the front air inlet (103) and the top of the rear air outlet (104) are both connected with an adjustment shaft (201); an adjustment baffle (2) is connected to the outer side of the adjustment shaft (201); the adjustment baffle (2) and the baffle sealing strip (105) are arranged in cooperation with each other; a reset limit block (203) is provided in the middle of the adjustment baffle (2); and a reset folding spring (202) is connected in the middle of the adjustment shaft (201).

6. The air filtering self-cleaning automobile grille according to claim 5, characterized in that: An inner circulation frame (7) is arranged between the outer circulation frame (3) and the grid frame (1); a conveying guide groove (701) is arranged around the middle of the inner circulation frame (7); a traction belt (702) is arranged around the outer side of the conveying guide groove (701); belt driving wheels (703) are connected to the inner sides of the upper and lower ends of the traction belt (702); a synchronous driving shaft (706) is connected to the center of the belt driving wheel (703); a driving motor (707) is connected to the middle of the synchronous driving shaft (706); the driving motor (707) drives the belt driving wheels (703) on the left and right sides to rotate synchronously through the synchronous driving shaft (706), thereby driving the traction belts (702) on both sides to rotate synchronously around the inner circulation frame (7).

7. The air filtering self-cleaning automobile grille according to claim 6, characterized in that: A driving wheel magnet (704) is installed in the middle of the belt driving wheel (703), and a Hall sensor (705) is arranged at intervals on the outer side of the belt driving wheel (703), and the Hall sensor (705) and the driving wheel magnet (704) are arranged in coordination with each other.

8. The air filtering self-cleaning automobile grille according to claim 6, characterized in that: A plurality of synchronous adjustment frames (8) are evenly arranged around the outer side of the inner circulation frame (7), and guide sliders (801) are connected to the left and right ends of the synchronous adjustment frame (8). The synchronous adjustment frame (8) is slidably connected to the inner circulation frame (7) through the guide slider (801) and the conveying guide groove (701), and the guide slider (801) is connected to the traction belt (702). The traction belt (702) drives all the synchronous adjustment frames (8) to move synchronously around the inner circulation frame (7) through the guide slider (801). When the synchronous adjustment frame (8) passes through the adjustment baffle (2), it pushes the adjustment baffle (2) to rotate along the adjustment shaft (201) to gradually close the front air inlet (103) and the rear air outlet (104).

9. The air filtering self-cleaning automobile grille according to claim 8, characterized in that: The synchronous adjustment frame (8) is provided with a plurality of pressure sleeves (9) arranged evenly on one side close to the grid frame (1); an adjusting pressure rod (901) is slidably nested inside the pressure sleeve (9); a pressure spring (903) is connected to the rear end of the adjusting pressure rod (901); an adjusting pressure wheel (902) is connected to the front end of the adjusting pressure rod (901); the adjusting pressure wheel (902) and the adjusting baffle (2) are arranged to cooperate with each other; when the synchronous adjustment frame (8) drives the adjusting pressure wheel (902) to synchronously move through the adjusting baffle (2) through the pressure sleeve (9) and the adjusting pressure rod (901), the adjusting baffle (2) is pushed by the adjusting pressure wheel (902) to rotate along the adjusting shaft (201) to gradually close the front air inlet (103) and the rear air outlet (104).

10. The air filtering self-cleaning automobile grille according to claim 8, characterized in that: A sliding engagement groove (802) is provided on one side of the synchronous adjustment frame (8) close to the annular filter screen (301), a horizontal cleaning brush (804) is slidably engaged with the inner side of the sliding engagement groove (802), and a buffer spring (803) is provided on the rear side of the horizontal cleaning brush (804).

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