Automobile corrugated pipe with filtering function

Abstract

The invention relates to the technical field of automobile accessories, in particular to an automobile corrugated pipe with a filtering function, which comprises a corrugated pipe body, and connectors are arranged at two ends of the corrugated pipe body; the position, close to the gas inlet end, of the corrugated pipe body is provided with the filtering mechanism which is used for deeply filtering tail gas and is convenient to clean; and the auxiliary mechanism for assisting the filtering mechanism to clean impurities is arranged at the position, close to the air inlet end, of the corrugated pipe body. According to the invention, smoke dust and water vapor in tail gas are filtered through the filter element and are prevented from being accumulated at the wrinkles of the corrugated pipe to influence the use effect, and when the corrugated pipe is not used, a user can scrape the smoke dust on the surface of the filter element through the scraper; and meanwhile, the gear and the rack are matched to assist in discharging the scraped smoke from the corrugated pipe, so that the subsequent filtering effect is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to an automobile bellows with a filtering function. Background Art

[0002] The car exhaust bellows, also known as the automobile exhaust pipe hose, is an important connecting component in the automotive field. It is installed in the exhaust pipe between the engine exhaust branch pipe and the muffler. It is mainly used to absorb the vibration of the exhaust system, prevent excessive thermal deformation, make the entire exhaust system connection flexible, play a role in noise reduction, and extend the life of the exhaust noise reduction system.

[0003] Existing automobile bellows are mainly used for exhaust gas emission. In order to effectively prevent the emission of exhaust gas, a corresponding filter is usually set inside the automobile bellows to filter the smoke and dust in the exhaust gas. However, the filter has limited treatment for exhaust gas and can only filter particulate impurities larger than the filter aperture. It is not convenient to clean it. If there are too much water vapor and fine particulate impurities in the exhaust gas when the car is running, the filter still cannot guarantee the filtering effect. The impurities and water vapor are mixed and accumulated in the folds of the bellows, affecting the normal use of the bellows.

[0004] Therefore, it is necessary to design an automobile bellows with filtering function. Summary of the invention

[0005] In order to overcome the shortcomings that the existing bellows can only filter particulate impurities larger than the aperture of the filter and are inconvenient to clean, if there are too much water vapor and fine particulate impurities in the exhaust gas when the car is running, the filter still cannot guarantee the filtering effect, and the impurities and water vapor are mixed and accumulated in the folds of the bellows, affecting the normal use of the bellows. The technical problem is: to provide a car bellows with a filtering function.

[0006] The technical solution of the present invention is: an automobile bellows with filtering function, comprising: a bellows body and a connector, with connectors provided at both ends of the bellows body; a filtering mechanism, with a filtering mechanism for deep filtering of exhaust gas and convenient cleaning provided at a position near the air inlet end of the bellows body; an auxiliary mechanism, with an auxiliary filtering mechanism for cleaning impurities provided at a position near the air inlet end of the bellows body.

[0007] Furthermore, the filtering mechanism specifically includes: a rotating plate, a square groove is provided at the lower part of the bellows body, an arc-shaped rotating plate is rotatably provided on the square groove, and the rotating plate completely blocks the square groove; a filter element, two filter elements are provided at the position directly above the rotating plate inside the bellows body; a fixed ring, a fixed ring is provided at the positions at both ends of the filter element inside the bellows body; a rotating ring, a slide groove is provided on the inner side of the fixed ring, and a rotating ring is slidably provided in the slide groove; a scraper, a scraper facing the filter element is provided inside the rotating ring, and the scraper is in contact with the surface of the filter element; a square tube, three square tubes penetrating the rotating plate are provided at the bottom of the rotating plate, and the square tubes are spaced apart from the filter element; a rotating shaft, a rotating shaft is rotatably provided at the lower part of the rotating plate; a friction wheel, four friction wheels are provided on the rotating shaft, and the friction wheels all penetrate the rotating plate and the fixed ring and frictionally cooperate with the rotating ring; a dual-axis motor, a dual-axis motor is provided at the bottom of the rotating plate, and the output shaft of the dual-axis motor is connected to the rotating shaft through a coupling.

[0008] Further, the auxiliary mechanism specifically includes: a first gear, a first gear is rotatably provided on the top of the bellows body; a power assembly, a power assembly for controlling the rotation of the first gear is provided at the top of the bellows body 1 near the first gear; a fixed seat, two groups of fixed seats are symmetrically provided about the horizontal center of the first gear on the top of the bellows body 1; a rack, a rack is slidably provided in each group of fixed seats, and the racks are meshed with the first gear; a valve assembly, two valve assemblies are symmetrically provided about the first gear inside the bellows; a second gear, a second gear is provided at the top of the central axis of the valve assembly, and the second gears are meshed with the adjacent racks; a third gear, a third gear is provided on the bottom end of the central axis of the valve assembly; a limit seat, two limit seats are symmetrically provided about the horizontal center of the first gear at the bottom of the bellows body; a connecting rod, a connecting rod is slidably provided in the limit seat, and the positions of the two connecting rods near the third gear are provided with a tooth key and meshed with the third gear, and the connecting pipes slide through the square pipe; a baffle, a baffle is provided at the position of the connecting rod near the square pipe, and the baffles on the connecting rods on both sides of the bellows body are close to each other to completely block the square pipe.

[0009] Furthermore, it also includes a blowing mechanism, which specifically includes: a mounting seat, a mounting seat is symmetrically provided on the top of the bellows body with respect to the first gear, and the mounting seat passes through the bellows body; a rotating seat, a hollow tubular rotating seat is rotatably provided on the bottom of the mounting seat away from the first gear; a fan, a fan is provided on the end of the rotating seat away from the mounting seat, and the rotating seat connects the fan with the outside; a servo motor, a servo motor is provided on the top of the mounting seat; a transmission frame, a transmission frame is slidably passed through the top of the mounting seat, and the bottom end of the transmission frame is rotatably connected to the fan; a turntable, a turntable is provided on the output shaft of the servo motor through a coupling, and the eccentric position on the turntable is rotatably connected to the transmission frame.

[0010] Furthermore, the valve assembly specifically includes: a first magnetic block, which is provided on the outer side of the bellows body near the valve assembly; a valve core, which is rotatably provided at both ends of the inner side of the bellows; a first blocking block, which is slidingly provided on the inner sides of both horizontal ends of the valve core; a second blocking block, which is slidingly provided on the side of the first blocking block away from the valve core; an elastic member, which is connected between the valve core and the first blocking block and between the first blocking block and the second blocking block; a second magnetic block, which is provided on the inner side of the second blocking block.

[0011] Furthermore, it also includes: a filter screen, and a filter screen is provided on the inner side of the bellows body near the air inlet end.

[0012] Furthermore, it also includes: a protective shell, and the outer side of the bellows body is provided with an auxiliary mechanism to protect the protective shell.

[0013] The present invention has the following advantages: 1. In the present invention, the smoke and water vapor in the exhaust gas are filtered by the filter element to avoid accumulation in the folds of the bellows to affect the use effect. When the bellows is not in use, the user can scrape the smoke on the surface of the filter element with a scraper. At the same time, the smoke scraped off with the assistance of the cooperation of the gear rack is discharged from the bellows to ensure the subsequent filtering effect.

[0014] 2. After the valve mechanism closes the bellows, the fan is driven downward by the turntable to control the transmission frame. After the fan is started, the fan blows the external air to the inside of the bellows body through the rotating seat, and then leaves the bellows from the square tube, thereby achieving the purpose of improving the cleaning efficiency of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the back side of the present invention.

[0017] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the filtering mechanism of the present invention.

[0018] Figure 4 It is a partial three-dimensional structural schematic diagram of the filtering mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating ring, scraper and friction wheel of the present invention.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating ring and the scraper of the present invention.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the auxiliary mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of a first partial three-dimensional structure of the auxiliary mechanism of the present invention.

[0023] Fig. 9 It is a schematic diagram of a second partial three-dimensional structure of the auxiliary mechanism of the present invention.

[0024] Fig.10 It is a partial three-dimensional structure exploded diagram of the auxiliary mechanism of the present invention.

[0025] Fig.11 It is a schematic diagram of the three-dimensional structure of the blowing mechanism of the present invention.

[0026] Fig.12 It is a partial three-dimensional structural schematic diagram of the blowing mechanism of the present invention.

[0027] Fig.13 It is a partial three-dimensional structural schematic cross-sectional view of the blowing mechanism of the present invention.

[0028] Fig.14 It is a three-dimensional structural schematic diagram of the bellows body, the first magnetic block and the valve core of the present invention.

[0029] Fig.15 It is a three-dimensional structural schematic diagram of the valve core, the first blocking block and the second blocking block of the present invention.

[0030] Fig.16 It is a schematic cross-sectional view of a part of the three-dimensional structure of the present invention.

[0031] Fig.17 It is a schematic diagram of the three-dimensional structure of the filter screen of the present invention.

[0032] Parts names and serial numbers in the figure: 1_ bellows body, 2_ connector, 3_ filter mechanism, 301_ rotating plate, 302_ filter element, 303_ fixed ring, 304_ rotating ring, 305_ scraper, 306_ square tube, 307_ rotating shaft, 308_ friction wheel, 309_ dual-axis motor, 4_ auxiliary mechanism, 401_ first gear, 402_ power assembly, 403_ fixed seat, 404_ rack, 405_ valve assembly, 4 06_second gear, 407_third gear, 408_limit seat, 409_connecting rod, 410_baffle, 5_blowing mechanism, 501_mounting seat, 502_rotating seat, 503_fan, 504_servo motor, 505_turntable, 506_transmission frame, 6_first magnetic block, 7_valve core, 8_first blocking block, 9_second blocking block, 10_elastic part, 11_second magnetic block, 12_filter, 13_protective shell. DETAILED DESCRIPTION

[0033] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0034] Example 1

[0035] like Figures 1 to 10 As shown, the present invention provides an automobile bellows with filtering function, which specifically includes a bellows body 1, a connector 2, a filtering mechanism 3 and an auxiliary mechanism 4;

[0036] The two ends of the bellows body 1 are provided with connectors 2, and the filtering mechanism 3 is arranged at a position close to the air inlet end of the bellows body 1, which is used for deep filtering of the exhaust gas and facilitating the cleaning of smoke and dust;

[0037] The auxiliary mechanism 4 is arranged at a position close to the air inlet end of the bellows body 1 to assist the filtering mechanism 3 in cleaning impurities.

[0038] The filtering mechanism 3 specifically includes a rotating plate 301, a filter element 302, a fixing ring 303, a rotating ring 304, a scraper 305, a square tube 306, a rotating shaft 307, a friction wheel 308 and a dual-axis motor 309;

[0039] A square groove is formed at the bottom of the bellows body 1, and an arc-shaped rotating plate 301 is rotatably provided on the square groove. The rotating plate 301 completely blocks the square groove, so as to facilitate the disassembly and installation of the filter element 302.

[0040] Two filter elements 302 are arranged inside the bellows body 1 at the position just above the rotating plate 301, and fixed rings 303 are arranged inside the bellows body 1 at the positions at both ends of the filter element 302, and a slide groove is opened inside the fixed ring 303, and a rotating ring 304 is slidably arranged inside the slide groove, and a scraper 305 facing the filter element 302 is arranged inside the rotating ring 304, and the scraper 305 contacts the surface of the filter element 302 and is used to clean the surface of the filter element 302;

[0041] Among them, three square tubes 306 penetrating the rotating plate 301 are provided at the bottom of the rotating plate 301, and the square tubes 306 are arranged at intervals from the filter element 302, so as to discharge the cleaned smoke and dust from the bellows;

[0042] Among them, a rotating shaft 307 is rotatably provided at the lower part of the rotating plate 301, and four friction wheels 308 are provided on the rotating shaft 307. The friction wheels 308 all penetrate the rotating plate 301 and the fixed ring 303 and frictionally cooperate with the rotating ring 304. A dual-axis motor 309 is provided at the bottom of the rotating plate 301. The output shaft of the dual-axis motor 309 is connected to the rotating shaft 307 through a coupling, which is used to provide power for the rotation of the rotating ring 304.

[0043] The auxiliary mechanism 4 specifically includes a first gear 401, a power assembly 402, a fixing seat 403, a rack 404, a valve assembly 405, a second gear 406, a third gear 407, a limiting seat 408, a connecting rod 409 and a baffle 410;

[0044] Among them, a first gear 401 is rotatably provided on the top of the bellows body 1, and a power assembly 402 for controlling the rotation of the first gear 401 is provided at a position near the first gear 401 on the top of the bellows body 1. Two groups of fixed seats 403 are symmetrically provided about the horizontal center of the first gear 401 on the top of the bellows body 1, and a rack 404 is slidably provided in each group of fixed seats 403, and the racks 404 are meshed with the first gear 401. Two valve assemblies 405 are symmetrically provided about the first gear 401 inside the bellows, and a second gear 406 is provided at the top of the central axis of the valve assembly 405, and the second gear 406 is meshed with the adjacent rack 404, which is used to close the bellows;

[0045] Among them, a third gear 407 is provided on the bottom end of the central axis of the valve component 405, and two limit seats 408 are symmetrically provided at the bottom of the bellows body 1 about the horizontal center of the first gear 401, and connecting rods 409 are slidably provided in the limit seats 408. The two connecting rods 409 are provided with gear keys near the third gear 407 and mesh with the third gear 407. The connecting pipes slide through the square tube 306, and baffles 410 are provided on the connecting rods 409 near the square tube 306. The baffles 410 on the connecting rods 409 on both sides of the bellows body 1 are close to each other to completely block the square tube 306.

[0046] Exemplarily, after the device is installed on the exhaust pipe of an automobile, in the initial state, the valve assembly 405 is in a state of not blocking the bellows, and the baffle 410 is in a state of completely closing the square tube 306. The automobile exhaust normally enters the bellows from the air intake end, and then passes through the two filter elements 302 in sequence to filter the smoke and water vapor in the exhaust gas and then discharge it from the bellows. After the bellows has been used for a period of time, the user can control the power assembly 402 to drive the first gear 401 to rotate forward, so that the first gear 401 drives the valve assembly 405 to rotate through the rack 404 and the second gear 406 to close the bellows. While the valve assembly 405 rotates, the two third gears 407 drive the baffles on both sides of the square tube 306 through the connecting rod 409. The plates 410 move away from each other, so that the baffle 410 no longer closes the square tube 306. At the same time, the user controls the dual-axis motor 309 to drive the rotating shaft 307 to rotate. The rotating shaft 307 drives the rotating ring 304 and the scraper 305 to rotate along the fixed ring 303 through the friction wheel 308. The scraper 305 in contact with the surface of the filter element 302 scrapes off the smoke and dust accumulated on the surface of the filter element 302, and then leaves the inside of the bellows from the square tube 306. After cleaning, the user controls the first gear 401 to rotate back to the initial position in the opposite direction to return the device to the initial state, thereby ensuring the filtering effect of the bellows after long-term use, and when the filter element 302 needs to be replaced, the user uses a tool to open the rotating plate 301 to replace the filter element 302, thereby ensuring the normal use of the bellows.

[0047] Example 2

[0048] like Figure 11 to Figure 13 As shown, on the basis of Example 1, it specifically includes a blowing mechanism 5, which specifically includes a mounting seat 501, a rotating seat 502, a fan 503, a servo motor 504, a turntable 505 and a transmission frame 506. The top of the bellows body 1 is symmetrically provided with a mounting seat 501 about the first gear 401, and the mounting seat 501 penetrates the bellows body 1. The bottom of the mounting seat 501 away from the first gear 401 is rotatably provided with a hollow tubular rotating seat 502, and the end of the rotating seat 502 away from the mounting seat 501 is provided with a fan 503, and the rotating seat 502 connects the fan 503 with the outside, and the top of the mounting seat 501 is provided with a servo motor 504, and the top of the mounting seat 501 is slidably penetrated with a transmission frame 506, and the bottom end of the transmission frame 506 is rotatably connected to the fan 503, and the servo motor 504 output shaft is provided with a turntable 505 through a coupling, and the eccentric position on the turntable 505 is rotatably connected to the transmission frame 506.

[0049] In the initial state, the fan 503 and the rotating seat 502 are retracted inside the rotating seat 502 under the action of the transmission frame 506. When cleaning the filter element 302, after the valve mechanism closes the bellows, the user can start the servo motor 504, and control the transmission frame 506 through the turntable 505 to drive the fan 503 to move downward, and the rotating seat 502 to rotate downward. After starting the fan 503, the fan 503 blows the external air to the inside of the bellows body 1 through the rotating seat 502, and then leaves the bellows from the square tube 306, thereby achieving the purpose of improving the cleaning efficiency of the filter element 302.

[0050] like Figure 14 to Figure 16 As shown, on the basis of Example 1, the valve assembly 405 specifically includes a first magnetic block 6, a valve core 7, a first blocking block 8, a second blocking block 9, an elastic member 10 and a second magnetic block 11, and the first magnetic block 6 is provided at a position on the outside of the bellows body 1 close to the valve assembly 405, a valve core 7 is rotatably provided at both ends of the inner side of the bellows, a first blocking block 8 is slidably provided on both ends of the valve core 7 horizontally, a second blocking block 9 is slidably provided on the side of the first blocking block 8 away from the valve core 7, an elastic member 10 is connected between the valve core 7 and the first blocking block 8 and between the first blocking block 8 and the second blocking block 9, and a second magnetic block 11 is provided on the inside of the second blocking block 9.

[0051] When the valve assembly 405 does not close the bellows, the first blocking block 8 and the second blocking block 9 are successively contracted inside the valve core 7 and the first blocking block 8 under the action of the elastic member 10. When the valve assembly 405 rotates to the position of sealing the bellows, under the action of the first magnetic block 6 and the second magnetic block 11, the first blocking block 8 and the second blocking block 9 are successively extended from the inside of the valve core 7 and the first blocking block 8 to completely close the bellows. During this process, the elastic member 10 is stretched. In this way, when the bellows is not closed, it is ensured that the valve assembly 405 avoids affecting the passage of exhaust gas to the greatest extent, and at the same time, the bellows can be completely closed when closed.

[0052] like Fig.17 As shown, based on the embodiment 1, a filter screen 12 is further included. The filter screen 12 is provided on one side of the inner side of the bellows body 1 close to the air inlet end.

[0053] The filter screen 12 on the inner side of the bellows can filter the smoke in the exhaust gas before the exhaust gas passes through the filter element 302 , thereby preventing large particles of smoke from being blocked in the filter element 302 and extending the service life of the filter element 302 .

[0054] like Figure 1 and Figure 2 As shown, on the basis of embodiment 1, a protective shell 13 is further included, and the outer side of the bellows body 1 is provided with an auxiliary mechanism 4 for protecting the protective shell 13.

[0055] The protective shell 13 on the outside of the bellows can protect the auxiliary mechanism 4 to prevent the gears of the auxiliary mechanism 4 from being damaged by stones flying from the outside when the car is running.

[0056] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An automotive bellows with filtering function, characterized in that: include: A bellows body (1) and a connector (2), wherein the connectors (2) are provided at both ends of the bellows body (1); A filtering mechanism (3) is provided near the air inlet end of the bellows body (1) for deep filtering of the exhaust gas and for easy cleaning; An auxiliary mechanism (4) is provided at a position close to the air inlet end of the bellows body (1) to assist the filtering mechanism (3) in cleaning impurities.

2. The automotive bellows with filtering function according to claim 1, characterized in that: The filtering mechanism (3) specifically includes: A rotating plate (301), a square groove is formed at the lower part of the bellows body (1), an arc-shaped rotating plate (301) is rotatably provided on the square groove, and the rotating plate (301) completely blocks the square groove; Filter core (302), two filter cores (302) are arranged inside the bellows body (1) at a position directly above the rotating plate (301); A fixing ring (303), wherein fixing rings (303) are provided at positions located at both ends of the filter element (302) inside the bellows body (1); The rotating ring (304) and the fixed ring (303) are both provided with a sliding groove on their inner sides, and the rotating ring (304) is slidably arranged in the sliding groove; a scraper (305) is arranged inside the rotating ring (304) and faces the filter element (302), and the scraper (305) is in contact with the surface of the filter element (302); Square tubes (306), three square tubes (306) penetrating the rotating plate (301) are arranged at the bottom of the rotating plate (301), and the square tubes (306) and the filter element (302) are arranged at intervals; A rotating shaft (307), a rotating shaft (307) is rotatably provided at the lower part of the rotating plate (301); Friction wheels (308), four friction wheels (308) are arranged on the rotating shaft (307), and the friction wheels (308) all penetrate the rotating plate (301) and the fixed ring (303) and are frictionally matched with the rotating ring (304); A double-shaft motor (309) is provided at the bottom of the rotating plate (301), and the output shaft of the double-shaft motor (309) is connected to the rotating shaft (307) through a coupling.

3. The automotive bellows with filtering function according to claim 2, characterized in that: The auxiliary mechanism (4) specifically includes: A first gear (401), a first gear (401) is rotatably provided on the top of the bellows body (1); The power assembly (402) is provided with a control device at the top of the bellows body 1 near the first gear (401). A power assembly (402) that rotates the first gear (401); A fixing seat (403), two sets of fixing seats (403) are symmetrically arranged on the top of the bellows body 1 about the horizontal center of the first gear (401); Racks (404), each set of fixed seats (403) is slidably provided with racks (404), and the racks (404) are meshed with the first gears (401); A valve assembly (405), wherein two valve assemblies (405) are symmetrically arranged inside the bellows with respect to the first gear (401); A second gear (406), a second gear (406) is provided at the top of the central axis of the valve assembly (405), and the second gear (406) is meshed with the adjacent rack (404); A third gear (407), a third gear (407) is provided on the bottom end of the central axis of the valve assembly (405); a limit seat (408), two limit seats (408) are symmetrically provided at the bottom of the bellows body (1) about the horizontal center of the first gear (401); The connecting rod (409) and the limiting seat (408) are both slidably provided with the connecting rod (409), and the two connecting rods (409) are both provided with tooth keys near the third gear (407) and mesh with the third gear (407), and the connecting pipes are both slidably penetrated through the square pipe (306); Baffles (410) are provided at positions on the connecting rods (409) close to the square tube (306). The baffles (410) on the connecting rods (409) on both sides of the corrugated tube body (1) are close to each other and can completely block the square tube (306).

4. The automotive bellows with filtering function according to claim 3, characterized in that: The device further comprises an air blowing mechanism (5), wherein the air blowing mechanism (5) specifically comprises: A mounting seat (501), the top of the bellows body (1) is symmetrically provided with a mounting seat (501) about the first gear (401), and the mounting seat (501) penetrates the bellows body (1); A rotating seat (502), a hollow tubular rotating seat (502) is rotatably provided at the bottom of the mounting seat (501) away from one end of the first gear (401); A fan (503), a fan (503) is provided at one end of the rotating seat (502) away from the mounting seat (501), and the rotating seat (502) connects the fan (503) with the outside; A servo motor (504), a servo motor (504) is disposed on the top of the mounting seat (501); A transmission frame (506) is provided on the top of the mounting seat (501) in a sliding manner, and the bottom end of the transmission frame (506) is rotatably connected to the fan (503); A turntable (505) is provided on the output shaft of the servo motor (504) via a coupling, and an eccentric position on the turntable (505) is rotationally connected to a transmission frame (506).

5. The automobile bellows with filtering function according to claim 4, characterized in that: The valve assembly (405) specifically comprises: The first magnetic block (6) and the bellows body (1) are both provided at positions near the valve assembly (405) A first magnetic block (6); A valve core (7), the two ends of the inner side of the bellows are rotatably provided with valve cores (7); A first blocking block (8), a first blocking block (8) is slidably provided on the inner sides of both horizontal ends of the valve core (7); A second blocking block (9), a second blocking block (9) is slidably provided inside a side of the first blocking block (8) away from the valve core (7); An elastic member (10), wherein the elastic member (10) is connected between the valve core (7) and the first blocking block (8) and between the first blocking block (8) and the second blocking block (9); A second magnetic block (11) is provided inside the second blocking block (9).

6. The automobile bellows with filtering function according to claim 5, characterized in that: Also includes: A filter screen (12) is provided on the inner side of the bellows body (1) near the air inlet end.

7. The automobile bellows with filtering function according to claim 6, characterized in that: Also includes: A protective shell (13) is provided on the outside of the bellows body (1) for protection by an auxiliary mechanism (4).

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