CN114060185A

CN114060185A - Air filter for automobile

Info

Publication number: CN114060185A
Application number: CN202111612347.8A
Authority: CN
Inventors: 晁杨霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-02-18

Abstract

The invention discloses an automobile air filter which comprises an airflow channel, wherein the top end and the bottom end of the airflow channel are both provided with winding mechanisms, a filter screen is connected between the two winding mechanisms, and two ends of the filter screen are respectively wound on the two winding mechanisms; the invention drives the winding mechanism to rotate through the movement of the driving belt, thereby driving the filter screen to move, so that a part of the filter screen positioned in the airflow channel is wound on the winding mechanism positioned above, and a new filter screen wound on the winding mechanism positioned below moves into the airflow channel to work, thereby realizing the replacement of the filter screen.

Description

Air filter for automobile

Technical Field

The invention relates to the technical field of filtering devices, in particular to an automobile air filter.

Background

Gasoline and air are needed during combustion in the engine, and the air needs to be filtered before entering the engine, so that unnecessary abrasion caused by dust entering the engine is avoided. Automotive air filters are common components used specifically to filter air entering an automotive engine.

The Chinese invention patent CN108619819A discloses an air filter device in a new energy automobile, which comprises an air flow channel, the top and the bottom in the airflow channel are symmetrically provided with winding mechanisms which comprise brackets, a winding drum is rotatably arranged on the bracket, one end of the winding drum is coaxially connected with an output shaft of the motor, the motor is fixed on the bracket, a first filter screen is connected between the winding drums of the two winding mechanisms, two ends of the first filter screen are respectively wound on the two winding drums, the first filter screen continuously passes through two openings arranged at the top and the bottom of the airflow channel, one end of the airflow channel is provided with a guide plate which is obliquely arranged, the upper end of the guide plate is connected with a brush holder, be equipped with the cleaning brush on the brush yoke, cleaning brush and first filter screen surface contact, airflow channel's the other end is equipped with the blast gate, be equipped with air quality detection device between blast gate and the first filter screen. The invention can avoid frequent replacement of the filter element.

But this equipment need rotate through the motor drive reel when using to realize the change of filter screen, need initiatively open the motor drive reel during the change and rotate, forget very easily during the use and change the filter screen, thereby lead to airflow channel to block up, and need be on-vehicle connecting circuit through motor drive's mode, be inconvenient for install.

Therefore, it is necessary to provide an air filter for an automobile to solve the above technical problems.

Disclosure of Invention

The invention aims to provide an automobile air filter, which solves the problems that when the existing automobile air filter in the background art is replaced, a motor is required to be actively started to drive a winding drum to rotate, when the existing automobile air filter is used, a filter screen is easy to forget to replace, so that an airflow channel is blocked, and a circuit is required to be connected on an automobile in a motor driving mode, so that the existing automobile air filter is inconvenient to install.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automobile air filter, includes airflow channel, airflow channel's top and bottom all are provided with winding mechanism, two be connected with the filter screen between the winding mechanism, the both ends of filter screen twine respectively on two winding mechanism, airflow channel's roof and diapire have all seted up the opening, the filter screen passes two openings, two winding mechanism passes through drive belt transmission and connects, be provided with drive mechanism and actuating mechanism on airflow channel's the lateral wall, actuating mechanism and drive mechanism synchronous transmission connect, and drive mechanism's output and drive belt synchronous transmission connect, inertial output drive when actuating mechanism passes through the automobile driving in-process variable speed to rotate through drive mechanism drive belt.

When the automobile filter screen replacing device is used, a driving mechanism generates driving force through the inertia effect during speed change in the driving process of an automobile, the driving force drives a driving block to move through a transmission mechanism, the driving block does not drive a transmission belt to move when moving upwards, the driving block moves downwards after moving upwards to a limit position, the driving block drives the transmission belt to move when moving downwards, a winding mechanism is driven to rotate through the movement of the transmission belt, so that a filter screen is driven to move, a part of the filter screen in an airflow channel is wound on the winding mechanism above, a new filter screen wound on the winding mechanism below moves into the airflow channel to work, the replacement of the filter screen is realized, the driving force is generated through the inertia effect during speed change in the driving process of the automobile, the filter screen can be automatically replaced after the automobile runs for a certain distance, and the blockage of the airflow channel caused by forgetting to replace the filter screen after long-time use is avoided, the use is got up more conveniently, and need not use the electricity to drive, does not need interconnecting link during the installation, is convenient for install.

As a further scheme of the invention, the transmission mechanism comprises a driving block, the driving block is in transmission connection with the transmission belt, a first one-way rack is fixedly mounted on the outer wall of the transmission belt, a through hole is formed in the driving block, the transmission belt penetrates through the through hole, an elastic plate is fixedly mounted in the through hole, a second one-way rack is fixedly mounted on the elastic plate, and the first one-way rack and the second one-way rack are in one-way meshing.

When the one-way rack driving device is used specifically, the second one-way rack can be pressed on the first one-way rack through the elastic plate, the second one-way rack can be deviated left and right in the through hole, when the driving block moves downwards, the first one-way rack drives the second one-way rack to move synchronously, and when the driving block moves upwards, the first one-way rack cannot drive the second one-way rack to move.

As a further scheme of the invention, the transmission mechanism further comprises a transmission box, the transmission box is fixedly mounted on the side wall of the airflow channel, a sliding block is slidably mounted in the transmission box, the sliding block is fixedly connected with the driving block, a rack is fixedly mounted at the bottom end of the sliding block, and the rack is in transmission connection with the driving mechanism.

When the special-purpose electric iron is used, the driving mechanism drives the sliding block to move upwards through the rack, and the sliding block drives the driving block to move upwards when moving upwards.

As a further scheme of the invention, a third unidirectional rack is fixedly mounted on the inner side wall of the transmission box, a mounting cavity is formed in the slider, a magnetic block is fixedly mounted on one side in the mounting cavity, a first piston is slidably mounted on the other side in the mounting cavity, an iron block is fixedly mounted in the first piston, the first piston and the magnetic block are elastically connected through a spring, a fixed block is fixedly mounted on the side wall of the first piston, which is far away from the magnetic block, one end of the fixed block movably penetrates through the mounting cavity, and one end of the fixed block, which penetrates through the mounting cavity, is meshed with the third unidirectional rack.

When the sliding block is used specifically, under the action of the one-way meshing of the third one-way rack and the fixed block, the sliding block cannot move downwards when the fixed block is in contact with the third one-way rack.

As a further scheme of the invention, a pressure lever is fixedly arranged on the inner wall of the top of the transmission box and is positioned right above the fixed block, and the contact surface of the pressure lever and the fixed block is an inclined plane.

During the specific use, when the slider moved to the top, the depression bar promoted the fixed block and moved towards the magnetic path, and at this moment under the suction effect of magnetic path, the fixed block was inhaled in the installation cavity, and the fixed block just separated with the one-way rack of third this moment.

As a further scheme of the invention, the bottom end of the sliding block is fixedly connected with an elastic rope, the bottom of the inner cavity of the transmission box is rotatably connected with a traction wheel, the elastic rope can be pulled through the traction wheel, and one end of the elastic rope, far away from the sliding block, bypasses the traction wheel and is fixedly connected with the top of the inner side wall of the transmission box.

When the fixing block is used, the sliding block stretches the elastic rope gradually when moving upwards, and when the fixing block is just separated from the third one-way rack, the sliding block moves downwards under the action of the tensile force of the elastic rope, so that the driving block is driven to move downwards.

As a further scheme of the invention, a support rod is fixedly installed at the bottom of the inner cavity of the transmission box, a second piston is fixedly installed at the top end of the support rod, a piston groove is formed at the bottom end of the sliding block, the piston groove is matched with the second piston, and the piston groove is communicated with the installation cavity.

When the magnetic block is used specifically, when the sliding block moves to the lowest position, the second piston is inserted into the piston groove, the second piston presses air in the piston groove into the mounting cavity, and therefore the first piston is pushed to move towards the third one-way rack until the first piston moves to a magnetic field range where the iron block is separated from the magnetic block, and at the moment, the fixing block is meshed with the third one-way rack.

As a further scheme of the invention, the driving mechanism comprises a driving box, the driving box is fixedly installed at the bottom of the side wall of the airflow channel, a first gear and a ratchet wheel are rotatably installed in the driving box, the ratchet wheel can only drive a second gear to rotate anticlockwise, the first gear is meshed with the rack, the ratchet wheel is sleeved with a second gear, the first gear is meshed with the second gear, the ratchet wheel is fixedly installed with a connecting rod, and a pendulum ball is fixedly installed at the bottom end of the connecting rod.

When the automobile swinging device is used specifically, the swinging ball swings relative to the driving box under the action of inertia during acceleration or deceleration in the automobile running process, the swinging ball drives the ratchet wheel to rotate through the connecting rod during swinging, the ratchet wheel drives the second gear to rotate in a one-way mode during rotation, the second gear drives the first gear to rotate during rotation, and the first gear drives the rack to move during rotation.

As a further scheme of the present invention, the winding mechanism includes a rotating shaft, one of the rotating shafts is rotatably installed at the top end of the airflow channel, the other rotating shaft is rotatably installed at the bottom end of the airflow channel, a winding drum is sleeved on the rotating shaft, two ends of the filter screen are respectively wound on the two winding drums, one end of the rotating shaft is sleeved with a driving wheel, and the two driving wheels are in transmission connection through a transmission belt.

During the concrete use, the drive belt is driven to remove when the drive block moves down, and it is rotatory to drive the drive wheel when the drive belt moves, drives the pivot rotation when the drive wheel is rotatory, drives the reel rotation when the pivot is rotatory to make the filter screen be located the reel of airflow channel in the coiling, the new filter screen of winding on the reel that is located the below removes to the airflow channel in and carries out work, thereby realizes the change of filter screen.

As a further scheme of the invention, bolts are installed on two opposite side walls of the driving box in a threaded manner, one end of each bolt extends into the driving box, two limiting plates are installed in the driving box in a sliding manner, the swinging ball is located between the two limiting plates, the limiting plates are rotatably connected with one end, located in an inner cavity of the driving box, of each bolt, and a knob is fixedly installed at one end, far away from the push plate, of each bolt.

During specific use, the pendulum ball can only move between two limiting plates, can change the displacement range of pendulum ball through adjusting the distance between two limiting plates, thereby change ratchet single pivoted angle, thereby realize the change speed that the filter screen was adjusted to the position through adjusting the limiting plate, distance between two limiting plates is less, the turned angle of ratchet is less, the turned angle of first gear and second gear is less, the distance that the rack removed is less, the change speed of filter screen is slower, the position of limiting plate is adjusted through the knob, it is rotatory to drive the bolt when rotating the knob, relative drive box when the bolt is rotatory removes, thereby it removes to drive the limiting plate.

The working principle is as follows: when the automobile runs, the inertia effect during acceleration or deceleration causes the swinging ball to swing relative to the driving box, the swinging ball drives the ratchet wheel to rotate through the connecting rod during swinging, the ratchet wheel drives the second gear to rotate in a single direction, the second gear drives the first gear to rotate during rotation, the rack drives the sliding block to move upwards during rotation of the first gear, the driving block is driven to move upwards during upward movement of the sliding block, the elastic rope is gradually lengthened during upward movement of the sliding block, the sliding block cannot move downwards when the fixed block is contacted with the third one-way rack under the one-way meshing action of the third one-way rack and the fixed block, when the sliding block moves to the top, the pressure rod pushes the fixed block to move towards the magnetic block, at the moment, under the suction action of the magnetic block, the fixed block is sucked in the mounting cavity, and at the moment, the fixed block is just separated from the third one-way rack, and the sliding block moves downwards under the tension action of the elastic rope, thereby driving the driving block to move downwards, when the sliding block moves to the lowest mode, the second piston is inserted into the piston groove, the second piston presses the gas in the piston groove into the mounting cavity, thereby pushing the first piston to move towards the third unidirectional rack until the first piston moves to the magnetic field range where the iron block is separated from the magnetic block, and at the moment, the fixed block is meshed with the third unidirectional rack, when the driving block moves upwards, the first unidirectional rack cannot drive the second unidirectional rack to move, when the driving block moves downwards, the first unidirectional rack drives the second unidirectional rack to move synchronously, when the driving belt moves, the driving wheel is driven to rotate, when the driving wheel rotates, the rotating shaft is driven to rotate, when the rotating shaft rotates, the winding drum is driven to rotate, thereby a part of the filter screen positioned in the airflow channel is wound on the winding drum positioned above, and a new filter screen wound on the winding drum positioned below moves into the airflow channel to work, thereby realize the change of filter screen, can change the home range of pendulum ball through adjusting the distance between two limiting plates, thereby change ratchet single pivoted angle, thereby realize adjusting the change speed of filter screen through the position of adjusting the limiting plate, the distance between two limiting plates is less, the turned angle of ratchet is less, the turned angle of first gear and second gear is less, the distance that the rack removed is less, the change speed of filter screen is slower, the position of limiting plate is adjusted through the knob, it is rotatory to drive the bolt when rotating the knob, relative drive box when the bolt is rotatory removes, thereby it removes to drive the limiting plate.

According to the automobile air filter, the winding mechanism is driven to rotate through the movement of the transmission belt, so that the filter screen is driven to move, a part of the filter screen in the air flow channel is wound on the winding mechanism above, a new filter screen wound on the winding mechanism below moves into the air flow channel to work, the filter screen is replaced, driving force is generated through the inertia effect during speed change in the automobile driving process, the filter screen can be automatically replaced after the automobile runs for a certain distance, the phenomenon that the filter screen is forgotten to be replaced after long-time use to cause blockage of the air flow channel is avoided, the automobile air filter is more convenient to use, electricity is not required to be used for driving, a connecting circuit is not required during installation, and the installation is convenient.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic front sectional view of the present invention;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is an enlarged schematic view of FIG. 3 at B;

FIG. 6 is a schematic side sectional view of the transmission case of the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at C;

FIG. 8 is an enlarged schematic view of FIG. 6 at D;

FIG. 9 is a schematic front sectional view of the drive box and drive block of the present invention;

fig. 10 is a schematic three-dimensional structure of the winding mechanism of the present invention.

In the figure: 1. an air flow channel; 2. a rotating shaft; 3. a reel; 4. filtering with a screen; 5. a driving wheel; 6. a transmission belt; 61. a first unidirectional rack; 7. a drive block; 8. an elastic plate; 9. a second unidirectional rack; 10. a transmission box; 11. a slider; 111. a mounting cavity; 112. a piston groove; 12. a rack; 13. an elastic cord; 14. a magnetic block; 15. a spring; 16. a first piston; 17. a fixed block; 18. a third unidirectional rack; 19. a pressure lever; 20. a support bar; 21. a second piston; 22. a drive cartridge; 23. a first gear; 24. a second gear; 25. a ratchet wheel; 26. a connecting rod; 27. placing a ball; 28. a limiting plate; 29. a bolt; 30. a knob; 31. a traction wheel.

Detailed Description

As shown in fig. 1 to 3, an automobile air filter, including airflow channel 1, airflow channel 1's top and bottom all are provided with winding mechanism, two be connected with filter screen 4 between the winding mechanism, the both ends of filter screen 4 twine respectively on two winding mechanism, airflow channel 1's roof and diapire have all seted up the opening, filter screen 4 passes two openings, two winding mechanism passes 6 transmission of drive belt and connects, be provided with drive mechanism and actuating mechanism on airflow channel 1's the lateral wall, drive mechanism includes drive block 7, drive block 7 with 6 one-way engagement of drive belt, drive mechanism is connected with the actuating mechanism transmission, actuating mechanism produces drive power through the inertia effect when the automobile driving in-process variable speed, drives filter screen 4 through this drive power and removes.

When the automobile filter screen is used specifically, the driving mechanism generates driving force through the inertia effect during speed change in the driving process of an automobile, the driving force drives the driving block 7 to move through the transmission mechanism, the driving block 7 does not drive the transmission belt 6 to move when moving upwards, the driving block 7 moves downwards after moving upwards to the extreme position, the driving block 7 drives the transmission belt 6 to move when moving downwards, the winding mechanism is driven to rotate through the movement of the transmission belt 6, so that the filter screen 4 is driven to move, one part of the filter screen 4 positioned in the airflow channel 1 is wound on the winding mechanism positioned above, a new filter screen 4 wound on the winding mechanism positioned below moves into the airflow channel 1 to work, so that the filter screen 4 is replaced, the driving force is generated through the inertia effect during speed change in the driving process of the automobile, the filter screen 4 can be automatically replaced after the automobile runs for a certain distance, and the phenomenon that the filter screen 4 is forgotten to replace to cause the blockage of the airflow channel 1 after long-time use is avoided, the use is got up more conveniently, and need not use the electricity to drive, does not need interconnecting link during the installation, is convenient for install.

As shown in fig. 1 and 10, the winding mechanism includes a rotating shaft 2, one of the rotating shaft 2 is rotatably installed at the top end of the airflow channel 1, the other rotating shaft 2 is rotatably installed at the bottom end of the airflow channel 1, a winding drum 3 is sleeved on the rotating shaft 2, two ends of the filter screen 4 are respectively wound on the two winding drums 3, a driving wheel 5 is sleeved at one end of the rotating shaft 2, and the two driving wheels 5 are in transmission connection through a driving belt 6.

During the specific use, the driving block 7 drives the driving belt 6 to move when moving downwards, the driving belt 6 drives the driving wheel 5 to rotate when moving, the driving wheel 5 drives the rotating shaft 2 to rotate when rotating, the rotating shaft 2 drives the winding drum 3 to rotate when rotating, so that one part of the filter screen 4 positioned in the airflow channel 1 is wound on the winding drum 3 positioned above, and the new filter screen 4 wound on the winding drum 3 positioned below moves to the airflow channel 1 to work, thereby realizing the replacement of the filter screen 4.

As shown in fig. 4, a first unidirectional rack 61 is fixedly installed on the outer wall of the transmission belt 6, a through hole is formed in the driving block 7, the transmission belt 6 penetrates through the through hole, an elastic plate 8 is fixedly installed in the through hole, a second unidirectional rack 9 is fixedly installed on the elastic plate 8, and the first unidirectional rack 61 is unidirectionally meshed with the second unidirectional rack 9.

During the specific use, can press the one-way rack 9 of second on first one-way rack 61 through elastic plate 8, and the one-way rack 9 of second can control the skew in the through-hole, and when the drive block 7 moves down, first one-way rack 61 drives the one-way rack 9 synchronous motion of second, and when the drive block 7 moved up, first one-way rack 61 can't drive the one-way rack 9 of second and remove.

As shown in fig. 3 to 9, the transmission mechanism further includes a transmission box 10, the transmission box 10 is fixedly installed on the side wall of the airflow channel 1, a slider 11 is slidably installed in the transmission box 10, the slider 11 is fixedly connected with the driving block 7, a third unidirectional rack 18 is fixedly installed on the inner side wall of the transmission box 10, an installation cavity 111 is formed in the slider 11, a magnetic block 14 is fixedly installed on one side in the installation cavity 111, a first piston 16 is slidably installed on the other side in the installation cavity 111, an iron block is fixedly installed in the first piston 16, the first piston 16 is elastically connected with the magnetic block 14 through a spring 15, a fixed block 17 is fixedly installed on the side wall of the first piston 16 far away from the magnetic block 14, one end of the fixed block 17 extends out of the installation cavity 111, one end of the fixed block 17 extending out of the installation cavity 111 is engaged with the third unidirectional rack 18, a rack 12 is fixedly installed at the bottom end of the sliding block 11, and the rack 12 is in transmission connection with the driving mechanism; a pressure lever 19 is fixedly installed on the inner wall of the top of the transmission box 10, the pressure lever 19 is positioned right above the fixed block 17, and the contact surface of the pressure lever 19 and the fixed block 17 is an inclined surface; the bottom end of the sliding block 11 is fixedly connected with an elastic rope 13, the bottom of the inner cavity of the transmission box 10 is rotatably connected with a traction wheel 31, and one end of the elastic rope 13 is fixedly connected with the top of the inner side wall of the transmission box 10 by bypassing the traction wheel 31; the bottom fixed mounting of transmission box 10 inner chamber has bracing piece 20, the top fixed mounting of bracing piece 20 has second piston 21, piston groove 112 has been seted up to the bottom of slider 11, piston groove 112 and second piston 21 looks adaptation, piston groove 112 with installation cavity 111 is linked together.

When the pneumatic sliding block is used, the driving mechanism drives the sliding block 11 to move upwards through the rack 12, the driving block 7 is driven to move upwards when the sliding block 11 moves upwards, the elastic rope 13 is gradually lengthened when the sliding block 11 moves upwards, the sliding block 11 cannot move downwards when the fixed block 17 is contacted with the third one-way rack 18 under the one-way meshing action of the third one-way rack 18 and the fixed block 17, when the sliding block 11 moves to the top, the pressing rod 19 pushes the fixed block 17 to move towards the magnetic block 14, at the moment, the fixed block 17 is sucked into the mounting cavity 111 under the suction action of the magnetic block 14, at the moment, the fixed block 17 is just separated from the third one-way rack 18, the sliding block 11 moves downwards under the tension action of the elastic rope 13, so that the driving block 7 is driven to move downwards, when the sliding block 11 moves to the bottom, the second piston 21 is inserted into the piston groove 112, the second piston 21 presses the gas in the piston groove 112 into the mounting cavity 111, thereby pushing the first piston 16 to move towards the third unidirectional rack 18 until the first piston 16 moves to a magnetic field range where the iron block is separated from the magnetic block 14, and at this time the fixed block 17 is meshed with the third unidirectional rack 18.

As shown in fig. 3 to 5, the driving mechanism includes a driving box 22, the driving box 22 is fixedly installed at the bottom of the side wall of the airflow channel 1, a first gear 23 and a ratchet 25 are rotatably installed in the driving box 22, the ratchet 25 can only drive a second gear 24 to rotate counterclockwise, the first gear 23 is engaged with the rack 12, the ratchet 25 is sleeved with the second gear 24, the first gear 23 is engaged with the second gear 24, the ratchet 25 is fixedly installed with a connecting rod 26, and a pendulum ball 27 is fixedly installed at the bottom end of the connecting rod 26.

When the automobile swinging device is used specifically, the swinging ball 27 swings relative to the driving box 22 under the action of inertia during acceleration or deceleration during the running process of an automobile, the swinging ball 27 drives the ratchet wheel 25 to rotate through the connecting rod 26 during swinging, the ratchet wheel 25 drives the second gear 24 to rotate in a single direction during rotation, the second gear 24 drives the first gear 23 to rotate during rotation, and the first gear 23 drives the rack 12 to move during rotation.

As shown in fig. 5, bolts 29 are installed on two opposite side walls of the driving box 22 in a threaded manner, one end of each bolt 29 extends into the driving box 22, two limiting plates 28 are installed in the driving box 22 in a sliding manner, the pendulum ball 27 is located between the two limiting plates 28, the limiting plates 28 are rotatably connected with one ends, located in an inner cavity of the driving box 22, of the bolts 29, and knobs 30 are fixedly installed at one ends, far away from the push plate, of the bolts 29.

During the specific use, pendulum ball 27 can only move between two limiting plates 28, can change pendulum ball 27's displacement range through adjusting the distance between two limiting plates 28, thereby change ratchet 25 single pivoted angle, thereby realize adjusting the change speed of filter screen 4 through the position of adjusting limiting plate 28, the distance between two limiting plates 28 is less, the turned angle of ratchet 25 is less, the turned angle of first gear 23 and second gear 24 is less, the distance that rack 12 removed is less, the change speed of filter screen 4 is slower, the position of limiting plate 28 is adjusted through knob 30, drive bolt 29 rotatory when rotating knob 30, relative drive box 22 removes when bolt 29 is rotatory, thereby drive limiting plate 28 and remove.

The working principle is as follows: when the automobile runs and is accelerated or decelerated, the swinging ball 27 swings relative to the driving box 22 under the inertia effect, the swinging ball 27 swings, the connecting rod 26 drives the ratchet wheel 25 to rotate, the ratchet wheel 25 rotates to drive the second gear 24 to rotate in a single direction, the second gear 24 rotates to drive the first gear 23 to rotate, the first gear 23 rotates to drive the rack 12 to move, the rack 12 drives the slider 11 to move upwards, the slider 11 moves upwards to drive the driving block 7, the elastic rope 13 is gradually lengthened when the slider 11 moves upwards, under the action of the single-direction meshing of the third one-direction rack 18 and the fixed block 17, when the fixed block 17 is contacted with the third one-direction rack 18, the slider 11 cannot move downwards, when the slider 11 moves to the top, the pressing rod 19 pushes the fixed block 17 to move towards the magnetic block 14, at the moment, the fixed block 17 is sucked in the mounting cavity 111 under the action of the suction force of the magnetic block 14, and at the moment, the fixed block 17 is just separated from the third unidirectional rack 18, the slide block 11 moves downwards under the action of the pulling force of the elastic rope 13, so as to drive the driving block 7 to move downwards, when the slide block 11 moves to the lowest mode, the second piston 21 is inserted into the piston groove 112, the second piston 21 presses the air in the piston groove 112 into the installation cavity 111, so as to push the first piston 16 to move towards the third unidirectional rack 18 until the first piston 16 moves to the magnetic field range of the iron block separated from the magnetic block 14, and at the moment, the fixed block 17 is meshed with the third unidirectional rack 18, when the driving block 7 moves upwards, the first unidirectional rack 61 cannot drive the second unidirectional rack 9 to move, when the driving block 7 moves downwards, the first unidirectional rack 61 drives the second unidirectional rack 9 to move synchronously, when the driving belt 6 moves, the driving wheel 5 rotates, when the driving wheel 5 rotates, the rotating shaft 2 rotates, when the rotating shaft 2 rotates, the rotating drum 3 rotates, so that a portion of the screen 4 in the air flow path 1 is wound on the upper reel 3, a new screen 4 wound on the lower reel 3 is moved into the air flow path 1 to be operated, thereby realizing the replacement of the filter screen 4, changing the moving range of the pendulum ball 27 by adjusting the distance between the two limit plates 28, thereby change the angle of ratchet 25 single rotation, thereby realize adjusting the change speed of filter screen 4 through the position of adjusting limiting plate 28, the distance between two limiting plates 28 is less, the turned angle of ratchet 25 is less, the turned angle of first gear 23 and second gear 24 is less, the distance that rack 12 removed is less, the change speed of filter screen 4 is slower, the position of limiting plate 28 is adjusted through knob 30, drive bolt 29 rotatory when rotating knob 30, relative drive box 22 removes when bolt 29 is rotatory, thereby drive limiting plate 28 and remove.

Claims

1. The utility model provides an automobile air filter, includes airflow channel, its characterized in that: airflow channel's top and bottom all are provided with winding mechanism, two be connected with the filter screen between the winding mechanism, the both ends of filter screen twine respectively on two winding mechanism, airflow channel's roof and diapire have all seted up the opening, the filter screen passes two openings, two winding mechanism passes through drive belt transmission and connects, be provided with drive mechanism and actuating mechanism on airflow channel's the lateral wall, actuating mechanism and drive mechanism synchronous drive are connected, and drive mechanism's output and drive belt synchronous drive are connected, inertial output drive when actuating mechanism passes through the car and traveles the in-process variable speed to drive the drive belt through drive mechanism and rotate.

2. The automotive air filter according to claim 1, characterized in that: the transmission mechanism comprises a driving block, the driving block is in transmission connection with the transmission belt, a first one-way rack is fixedly mounted on the outer wall of the transmission belt, a through hole is formed in the driving block, the transmission belt penetrates through the through hole, an elastic plate is fixedly mounted in the through hole, a second one-way rack is fixedly mounted on the elastic plate, and the first one-way rack and the second one-way rack are meshed in one way.

3. The automotive air filter according to claim 2, characterized in that: the transmission mechanism further comprises a transmission box, the transmission box is fixedly installed on the side wall of the airflow channel, a sliding block is installed in the transmission box in a sliding mode, the sliding block is fixedly connected with the driving block, a rack is fixedly installed at the bottom end of the sliding block, and the rack is in transmission connection with the driving mechanism.

4. The automotive air filter according to claim 3, characterized in that: the utility model discloses a magnetic block, including transmission box, mounting box, spring elastic connection, first piston, second piston, mounting box, the inside wall fixed mounting of transmission box has the one-way rack of third, the installation cavity has been seted up in the slider, one side fixed mounting of installation cavity has the magnetic path, opposite side slidable mounting in the installation cavity has first piston, fixed mounting has the iron plate in the first piston, spring elastic connection is passed through with the magnetic path to first piston, the lateral wall fixed mounting that the magnetic path was kept away from to first piston has the fixed block, the one end activity of fixed block link up the installation cavity, the one end that the fixed block link up the installation cavity meshes with the one-way rack of third mutually.

5. The automotive air filter according to claim 4, characterized in that: the inner wall of the top of the transmission box is fixedly provided with a pressing rod, the pressing rod is positioned right above the fixed block, and the contact surface of the pressing rod and the fixed block is an inclined plane.

6. The automotive air filter according to claim 4, characterized in that: the bottom fixedly connected with elasticity rope of slider, the bottom of transmission box inner chamber is rotated and is connected with the traction wheel, the one end that the slider was kept away from to the elasticity rope is walked around the traction wheel with the top fixed connection of transmission box inner wall.

7. The automotive air filter according to claim 4, characterized in that: the bottom fixed mounting of transmission box inner chamber has the bracing piece, the top fixed mounting of bracing piece has the second piston, the piston groove has been seted up to the bottom of slider, piston groove and second piston looks adaptation, the piston groove with the installation cavity is linked together.

8. The automotive air filter according to any one of claims 3 to 7, characterized in that: the drive mechanism comprises a drive box, the drive box is fixedly installed at the bottom of the side wall of the airflow channel, a first gear and a ratchet wheel are installed in the drive box in a rotating mode, the first gear is connected with the rack in a meshed mode, a second gear is sleeved on the ratchet wheel in a meshed mode, the first gear is connected with the second gear in a meshed mode, a connecting rod is fixedly installed on the ratchet wheel, and a pendulum ball is fixedly installed at the bottom end of the connecting rod.

9. The automotive air filter according to any one of claims 1 to 7, characterized in that: the winding mechanism comprises a rotating shaft, one of the rotating shaft is rotatably installed at the top end of the airflow channel, the other rotating shaft is rotatably installed at the bottom end of the airflow channel, a winding drum is sleeved on the rotating shaft, two ends of the filter screen are wound on the two winding drums respectively, a driving wheel is sleeved at one end of the rotating shaft, and the two driving wheels are connected through a transmission belt in a transmission mode.