Particulate matter air filter for exhaust system of internal combustion engine

Abstract

The utility model belongs to the technical field of internal combustion engine exhaust, and particularly relates to a particulate air filter for an internal combustion engine exhaust system, which comprises a filter connecting pipe, an adapter pipe and a filter tail pipe, the outer walls of the filter connecting pipe and the filter tail pipe are fixedly connected with sealed bearings, the adapter pipe is fixedly connected to the outer rings of the two sealed bearings, and the filter connecting pipe is fixedly connected with the filter tail pipe. And the outer walls of the filtering connecting pipe and the filtering tail pipe are fixedly connected with a connecting frame. According to the utility model, the rotating strip-shaped bristles can be utilized to rotatably sweep particulate matters adsorbed on the metal filter screen plate, so that the self-cleaning of the metal filter screen plate is completed, the intercepting and filtering effects of the metal filter screen plate on the particulate matters are ensured, and meanwhile, the collecting frame body can be utilized to collect and discharge the intercepted and filtered particulate matters; the maintenance operation convenience of the filter is improved, and high-frequency vibration of the fiber filter screen plate can be realized, so that tiny impurities can be separated from the fiber filter screen plate due to high-frequency vibration, and the intercepting and filtering effects of the filter on particulate matters and the tiny impurities are further ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the internal combustion engine exhaust technology field especially, it is a kind of particulate matter air filter for internal combustion engine exhaust system. BACKGROUND

[0002] Internal combustion engine exhaust system refers to the series device that the waste gas generated after combustion of internal combustion engine is collected and guided to discharge, usually contains exhaust pipe, muffler and filter and other components, its main function is to ensure that waste gas can be smoothly and safely discharged to the outside environment, the air filter used in internal combustion engine exhaust system is the key component part, can fully intercept and filter the particulate matter, small impurities and other pollutants in waste gas, to reduce the pollution of waste gas to atmosphere, improve the emission quality of internal combustion engine waste gas.

[0003] However, the particulate matter air filter for internal combustion engine exhaust system in use often still has the following problems:

[0004] The main role of air filter in internal combustion engine exhaust system is to intercept and filter the particulate matter and various small impurities in waste gas, and the particulate matter adsorbed by filter is easy to adhere to the filter screen therein, resulting in the interception and filtration effect of filter for particulate matter being reduced, affecting the emission quality of internal combustion engine waste gas, and the particulate matter intercepted and filtered by filter is difficult to collect and discharge, so that the maintenance operation of filter is relatively inconvenient, and the service life of filter is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems that the particulate matter and small impurities adsorbed by filter will affect its interception and filtration effect and the particulate matter intercepted and filtered is inconvenient to collect and discharge, provides a kind of particulate matter air filter for internal combustion engine exhaust system, which can realize the self-cleaning of filter screen in filter, maintain the interception and filtration effect of filter, facilitate the collection and discharge of particulate matter and improve the convenience of filter maintenance operation.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of particulate matter air filter for internal combustion engine exhaust system, including filter connecting pipe, adapter pipe and filter tail pipe, the filter connecting pipe, filter tail pipe outer wall are all fixedly connected with sealing bearing, the adapter pipe is fixedly connected to the outer ring of two sealing bearings, the filter connecting pipe, filter tail pipe outer wall are fixedly connected with connecting frame, the filter connecting pipe inner wall is fixedly connected with metal filter screen board, the filter tail pipe inner wall is slidably connected with annular rod, the annular rod inner side is fixedly connected with fiber filter screen board;

[0007] The self-cleaning assembly comprises a ventilation plate fixedly connected to the inner wall of the filtering connecting pipe, a ventilation pipe fixedly connected to the ventilation plate, a rotating shaft penetrating through the middle part of the ventilation plate, a impeller disc fixedly connected to the outer wall of the rotating shaft, a cleaning rod fixedly connected to the end of the rotating shaft, and a strip-shaped brush fixedly connected to the cleaning rod.

[0008] The collecting assembly is fixedly connected to the outer wall of the filtering connecting pipe.

[0009] The high-frequency vibration assembly is fixedly connected to the inner wall of the filtering tail pipe.

[0010] Preferably, the ventilation pipes are in the form of funnel-shaped structures, and the ventilation pipes are uniformly arranged in the form of annular arrays.

[0011] Preferably, the collecting assembly comprises a collecting frame fixedly connected to the outer wall of the filtering connecting pipe, a through hole is formed in the circumferential side wall of the filtering connecting pipe, the filtering connecting pipe is communicated with the collecting frame through the through hole, and two quick dismounting components are fixedly connected to the outer wall of the collecting frame.

[0012] Preferably, the quick dismounting component comprises an arc-shaped mounting side plate fixedly connected to the outer wall of the collecting frame, a mounting hole is formed in the arc-shaped mounting side plate, a mounting sleeve is fixedly connected to the connecting frame, a plug-in shaft is slidingly connected to the axial side wall of the mounting sleeve, the plug-in shaft is matched with the mounting hole, an abutting piece is fixedly connected to the outer wall of the plug-in shaft located in the mounting sleeve, and a first compression spring is fixedly connected between the abutting piece and the inner wall of the mounting sleeve.

[0013] Preferably, the high-frequency vibration assembly comprises an annular limiting support fixedly connected to the inner wall of the filtering tail pipe, two sliding pins are fixedly connected to the annular rod, two through holes are formed in the annular limiting support, the sliding pins are matched with the through holes, a second compression spring is fixedly connected between the annular rod and the annular limiting support and between the annular limiting support and the end of the sliding pin, and a vibration driving component is fixedly connected to the inner wall of the adapter pipe.

[0014] Preferably, the vibration driving component comprises two rotating supports fixedly connected to the inner wall of the adapter pipe, a roller is rotatably connected to each of the two rotating supports, an annular corrugated plate is fixedly connected to the annular rod, the roller is matched with the annular corrugated plate, two toothed rings are fixedly connected to the outer wall of the adapter pipe, a rotating rod is rotatably connected to the connecting frame, two transmission gears are fixedly connected to the outer wall of the rotating rod, the two transmission gears are respectively engaged with the two toothed rings, a low-speed motor is fixedly connected to the connecting frame, and the output end of the low-speed motor is fixedly connected to the end of the rotating rod.

[0015] Preferably, a sliding hole is formed on the connecting frame, the inserting shaft is matched with the sliding hole, and a traction tab is fixedly connected to the end of the inserting shaft away from the mounting sleeve.

[0016] Preferably, the roller is made of titanium carbonitride-based hard alloy material, and the outer surface of the roller is provided with transverse anti-skid lines.

[0017] Compared with the prior art, the particle air filter for an internal combustion engine exhaust system has the following advantages:

[0018] 1. The self-cleaning assembly is arranged in the utility model, the waste gas flow discharged by the internal combustion engine exhaust system drives the rotation of the impeller disc, a plurality of air pipes are utilized to accelerate the flow rate of the waste gas, the impeller disc, the rotating shaft and the cleaning rod can rotate rapidly, the rotating strip-shaped brush is utilized to rotate the particles adsorbed on the metal filter screen plate, the self-cleaning of the metal filter screen plate is completed, the metal filter screen plate is prevented from being blocked due to too many intercepted particles, and the interception and filtration effect of the metal filter screen plate on the particles is ensured.

[0019] 2. The collecting assembly is arranged in the utility model, the particles falling off after being cleaned on the metal filter screen plate enter the collecting frame body, the particles falling off after being cleaned are prevented from accumulating in the filter connecting pipe, the inserting shaft can be automatically inserted and fixed to the arc-shaped mounting side plate of the outer wall of the collecting frame body by the elastic pushing of the No. 1 compression spring, the quick mounting and dismounting of the collecting frame body relative to the filter connecting pipe are realized, the particles intercepted and filtered can be conveniently collected and discharged, and the maintenance convenience of the filter is improved.

[0020] 3. The high-frequency vibration assembly is arranged in the utility model, the rotation of the two rollers in the adapter pipe relative to the filter tail pipe is driven, the two rollers can quickly reciprocatingly push the annular rod by the pressing cooperation with the annular corrugated plate, the elastic action of the No. 2 compression spring is utilized to push the annular rod to reset, and the reciprocating sliding speed of the annular rod relative to the inner wall of the filter tail pipe is accelerated, the high-frequency vibration of the annular rod and the fiber filter screen plate is realized, the tiny impurities can be separated from the fiber filter screen plate due to the high-frequency vibration, the filtration permeability of the fiber filter screen plate is ensured, and the interception and filtration effect of the filter on the particles and the tiny impurities is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective structural schematic view of the particle air filter for the internal combustion engine exhaust system.

[0022] Figure 2 is an explosion view of the filter connecting pipe, the adapter pipe and the filter tail pipe in the particle air filter for the internal combustion engine exhaust system.

[0023] Figure 3 is the sectional view of the filter connecting pipe in the particulate matter air filter for the exhaust system of the internal combustion engine.

[0024] Figure 4 is the sectional view of the adapter pipe part structure in the particulate matter air filter for the exhaust system of the internal combustion engine.

[0025] Figure 5 is the schematic view of the high-frequency vibration assembly part structure in the particulate matter air filter for the exhaust system of the internal combustion engine.

[0026] Figure 6 is the schematic view of the collection frame part structure in the particulate matter air filter for the exhaust system of the internal combustion engine.

[0027] Figure 7 is the sectional view of the mounting sleeve part structure in the particulate matter air filter for the exhaust system of the internal combustion engine.

[0028] In the figure: 1 filter connecting pipe, 2 adapter pipe, 3 filter tail pipe, 4 sealing bearing, 5 connecting frame, 6 metal filter screen plate, 7 annular rod, 8 fiber filter screen plate, 9 air vent plate, 10 air vent pipe, 11 rotating shaft, 12 impeller disc, 13 cleaning rod, 14 strip brush, 15 collection frame, 16 arc-shaped mounting side plate, 17 mounting hole, 18 mounting sleeve, 19 plug-in shaft, 20 abutting piece, 21 No. 1 compression spring, 22 annular limiting support, 23 sliding pin shaft, 24 No. 2 compression spring, 25 rotating support, 26 roller, 27 annular corrugated plate, 28 gear ring, 29 rotating rod, 30 transmission gear, 31 low-speed motor, 32 traction tab. DETAILED DESCRIPTION

[0029] The following examples are for illustrative purposes only and are not intended to limit the scope of the present application.

[0030] As Figures 1-7As shown, a kind of particulate matter air filter for internal combustion engine exhaust system, including filter connection pipe 1, adapter pipe 2, filter tail pipe 3, self-cleaning assembly, collection assembly and high-frequency vibration assembly, filter connection pipe 1, filter tail pipe 3 outer wall are fixedly connected with sealing bearing 4, adapter pipe 2 is fixedly connected to the outer ring of two sealing bearings 4, filter connection pipe 1, filter tail pipe 3 outer wall are fixedly connected with connecting frame 5, filter connection pipe 1 inner wall is fixedly connected with metal filter screen plate 6, filter tail pipe 3 inner wall is slidably connected with annular rod 7, annular rod 7 inner side is fixedly connected with fiber filter screen plate 8;Self-cleaning includes air passage plate 9 fixedly connected to the inner wall of filter connection pipe 1, air passage tube 10 is fixedly connected on air passage plate 9, several air passage tubes 10 are all set in funnel-shaped structure, and several air passage tubes 10 are evenly arranged in annular array, air passage plate 9 middle part is rotatably connected with rotating shaft 11, filter connection pipe 1 inner wall is equipped with support rotating frame, and rotating hole is formed in support rotating frame, and rotating shaft 11 is located at rotating hole, support rotating frame can fully support the rotating operation of rotating shaft 11, rotating shaft 11 outer wall is fixedly connected with impeller disc 12, rotating shaft 11 end is fixedly connected with cleaning rod 13, and strip brush 14 is fixedly connected on cleaning rod 13;

[0031] The flow of exhaust gas discharged by internal combustion engine exhaust system is used to drive the rotation of impeller disc 12, in the process, since exhaust gas will first pass through several air passage tubes 10 on air passage plate 9, and air passage tube 10 is funnel-shaped structure, i.e. the pipe diameter of air passage tube 10 gradually reduces, according to the narrow tube effect, under the condition of constant flow, the cross-sectional area of fluid passing through the reduced pipe diameter part becomes smaller, so the speed of fluid will become larger, so several air passage tubes 10 can accelerate the flow rate of exhaust gas, so that impeller disc 12, rotating shaft 11 and cleaning rod 13 can rotate quickly, so that strip brush 14 on cleaning rod 13 can be used to rotate the particulate matter adsorbed on metal filter screen plate 6, to realize the self-cleaning function of metal filter screen plate 6, so that the blockage of metal filter screen plate 6 due to too much intercepted particulate matter can be avoided, and the interception and filtration effect of metal filter screen plate 6 on particulate matter is ensured.

[0032] As Figure 1 , Figure 2 , Figure 6 And Figure 7The collection assembly is fixedly connected to the outer wall of the filter connecting pipe 1. The collection assembly includes a collection frame body 15 fixedly connected to the outer wall of the filter connecting pipe 1. The circumferential side wall of the filter connecting pipe 1 is provided with a through hole. The filter connecting pipe 1 communicates with the collection frame body 15 through the through hole. The outer wall of the collection frame body 15 is fixedly connected with two quick disassembly components. The quick disassembly component includes an arc-shaped mounting side plate 16 fixedly connected to the outer wall of the collection frame body 15. The arc-shaped mounting side plate 16 is provided with a mounting hole 17. The connecting frame 5 is fixedly connected with a mounting sleeve 18. The mounting sleeve 18 is axially provided with a plug-in shaft 19 which is slidingly connected. The plug-in shaft 19 is matched with the mounting hole 17. The outer wall of the plug-in shaft 19 in the mounting sleeve 18 is fixedly connected with an abutting piece 20. The abutting piece 20 is fixedly connected with a first compression spring 21 between the inner wall of the mounting sleeve 18. The connecting frame 5 is provided with a sliding hole matched with the plug-in shaft 19. The end of the plug-in shaft 19 away from the mounting sleeve 18 is fixedly connected with a traction tab 32.

[0033] After the bar-shaped brush 14 sweeps the particles adsorbed on the metal filter screen plate 6, the particles directly fall into the collection frame body 15, avoiding the accumulation of the particles falling after sweeping inside the filter connecting pipe 1. If it is necessary to disassemble and maintain the collection frame body 15 to discharge the particles collected in the collection frame body 15, the plug-in shaft 19 can be driven to move by pulling the traction tab 32, so that the plug-in shaft 19 no longer plugs and fixes the arc-shaped mounting side plate 16, and the disassembly of the collection frame body 15 relative to the filter connecting pipe 1 can be completed. When the collection frame body 15 is installed on the filter connecting pipe 1, the collection frame body 15 can be attached to the outer wall of the filter connecting pipe 1, so that the port of the collection frame body 15 corresponds to the through hole on the filter connecting pipe 1. At this time, the plug-in shaft 19 also corresponds to the mounting hole 17 on the arc-shaped mounting side plate 16. The traction tab 32 is released, and the plug-in shaft 19 is elastically pushed to move by the first compression spring 21, so that the plug-in shaft 19 can plug and fix the arc-shaped mounting side plate 16. The collection frame body 15 can be installed and fixed, so that the quick installation and disassembly of the collection frame body 15 relative to the filter connecting pipe 1 can be realized, the particles intercepted and filtered can be conveniently collected and discharged, and the convenience of the maintenance work of the filter is improved.

[0034] As Figure 1 , Figure 4 and Figure 5As shown, the high-frequency vibration assembly is fixedly connected to the inner wall of the filtering tail pipe 3, and the high-frequency vibration assembly comprises an annular limiting support 22 fixedly connected to the inner wall of the filtering tail pipe 3, two sliding pin shafts 23 fixedly connected to the annular rod 7, two through holes formed in the annular limiting support 22, the sliding pin shafts 23 matched with the through holes, the second compression springs 24 fixedly connected between the annular rod 7 and the annular limiting support 22 and between the annular limiting support 22 and the end portions of the sliding pin shafts 23, the vibration driving part fixedly connected to the inner wall of the adapter pipe 2, the vibration driving part comprising two rotating supports 25 fixedly connected to the inner wall of the adapter pipe 2, the rollers 26 rotatably connected to the two rotating supports 25, the rollers 26 made of titanium carbonitride-based hard alloy material and provided with transverse anti-skid lines on the outer surfaces thereof, the annular corrugated plate 27 fixedly connected to the annular rod 7, the rollers 26 abutting against the annular corrugated plate 27, the two toothed rings 28 fixedly connected to the outer wall of the adapter pipe 2, the rotating rod 29 rotatably connected to the connecting frame 5, the two transmission gears 30 fixedly connected to the outer wall of the rotating rod 29, the two transmission gears 30 respectively meshed with the two toothed rings 28, and the low-speed motor 31 fixedly connected to the connecting frame 5 and having an output end fixedly connected to the end portion of the rotating rod 29.

[0035] The rotating rod 29 and the transmission gears 30 are driven to rotate by the low-speed motor 31, the adapter pipe 2 is driven to rotate by the meshing transmission of the transmission gears 30 and the toothed rings 28, the rollers 26 in the adapter pipe 2 can be synchronously rotated relative to the filtering tail pipe 3, the second compression springs 24 between the annular rod 7 and the annular limiting support 22 can elastically push the annular rod 7, the rollers 26 can always abut against and press the annular corrugated plate 27 on the annular rod 7, the annular rod 7 can be quickly reciprocatingly pushed by the pressing cooperation of the rollers 26 and the annular corrugated plate 27, the annular rod 7 can be reset by the elastic action of the second compression springs 24, and the reciprocating sliding speed of the annular rod 7 relative to the inner wall of the filtering tail pipe 3 is accelerated, so that the high-frequency vibration of the annular rod 7 and the fiber filter screen plate 8 can be realized, the micro impurities can be separated from the fiber filter screen plate 8 due to the high-frequency vibration, the filtering permeability of the fiber filter screen plate 8 is ensured, and the interception and filtering effect of the filter on the particulate matters and the micro impurities is further ensured.

[0036] The working principle of the utility model is as follows:

[0037] 1、use, filter connecting pipe 1 through the bolted or welded and so on way and exhaust pipe of exhaust system of internal combustion engine complete connection fixed, make filter connecting pipe 1 can be communicated with exhaust pipe, namely can utilize the flow of exhaust gas of exhaust system of internal combustion engine to drive impeller disc 12 rotation, in this process, because exhaust gas will first go through several air pipes 10 on air plate 9, and air pipe 10 is funnel-shaped structure, namely the pipe diameter of air pipe 10 gradually reduces, make several air pipes 10 can accelerate the flow rate of exhaust gas, further make impeller disc 12, rotating shaft 11 and cleaning rod 13 can fast rotation, so that the strip brush 14 on cleaning rod 13 can be used to rotate the particle on metal filter screen plate 6 and clean, realize the self-cleaning function of metal filter screen plate 6, so that the metal filter screen plate 6 can be avoided because the particle is too much and is blocked, guarantee the interception filtering effect of metal filter screen plate 6 to particle;

[0038] 2, after the strip brush 14 cleans the particle on metal filter screen plate 6, the particle will directly fall into the collection frame 15, avoid the particle that falls after cleaning and accumulates in the filter connecting pipe 1, if need to disassemble and maintain collection frame 15, to discharge the particle collected in collection frame 15, can drive the plug-in shaft 19 to move by pulling the traction tab 32, make the plug-in shaft 19 no longer inserts and fixes arc-shaped installation side plate 16, can complete the disassembly of collection frame 15 relative to filter connecting pipe 1, and when collection frame 15 is installed to filter connecting pipe 1, collection frame 15 can be attached to the outer wall of filter connecting pipe 1, make the port of collection frame 15 correspond to the through hole on filter connecting pipe 1, at this time, the plug-in shaft 19 also corresponds to the installation hole 17 on arc-shaped installation side plate 16, loosen the traction tab 32, use the first compression spring 21 to elastically push the plug-in shaft 19 to move, make the plug-in shaft 19 can insert and fix arc-shaped installation side plate 16, can install and fix collection frame 15, so that the quick installation and disassembly of collection frame 15 relative to filter connecting pipe 1 can be realized, facilitate to collect and discharge the particle that is intercepted and filtered, improve the maintenance operation convenience of filter;

[0039] 3、In use, the low-speed motor 31 can be controlled to start, the rotating rod 29 and the transmission gear 30 are driven to rotate by the low-speed motor 31, the adapter pipe 2 is driven to rotate by the meshing transmission of the transmission gear 30 and the tooth ring 28, the roller 26 in the adapter pipe 2 can rotate synchronously relative to the filter tail pipe 3, the annular rod 7 can be elastically pushed by the second compression spring 24 between the annular rod 7 and the annular limiting support 22, therefore the roller 26 can always adhere to the annular corrugated plate 27 on the annular rod 7, the annular rod 7 can be reciprocatingly pushed by the roller 26 and the annular corrugated plate 27, the annular rod 7 can be reset by the elastic action of the second compression spring 24, the reciprocating sliding speed of the annular rod 7 relative to the inner wall of the filter tail pipe 3 can be accelerated, the annular rod 7 and the fiber filter screen plate 8 can be high-frequency vibrated, the micro impurities can be separated from the fiber filter screen plate 8 by high-frequency vibration, the filtering permeability of the fiber filter screen plate 8 can be ensured, the interception and filtering effect of the filter on the particulate matter and the micro impurities can be further ensured.

[0040] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A particulate matter air filter for an exhaust system of an internal combustion engine, characterized by, The utility model relates to a filter device for water tank, including: Filter connecting pipe (1), adapter pipe (2) and filter tail pipe (3), the outer wall of filter connecting pipe (1), filter tail pipe (3) is fixedly connected with sealing bearing (4), adapter pipe (2) is fixedly connected on the outer ring of two sealing bearings (4), the outer wall of filter connecting pipe (1), filter tail pipe (3) is fixedly connected with connecting frame (5), the inner wall of filter connecting pipe (1) is fixedly connected with metal filter screen board (6), the inner wall of filter tail pipe (3) is connected with annular rod (7) slidingly, the inner side of annular rod (7) is fixedly connected with fiber filter screen board (8), Self-cleaning assembly, the self-cleaning includes fixedly connected with the air passage plate (9) in the filter connecting pipe (1) inner wall, the air passage plate (9) is fixedly connected with the air passage pipe (10), the air passage plate (9) middle is connected with the rotating shaft (11) rotationally, the rotating shaft (11) outer wall is fixedly connected with the impeller disc (12), the rotating shaft (11) end is fixedly connected with the cleaning rod (13), the cleaning rod (13) is fixedly connected with strip brush (14), A plurality of air passage pipes (10) are arranged in a funnel-shaped structure, and a plurality of air passage pipes (10) are uniformly arranged in an annular array. Collection assembly, the collection assembly is fixedly connected to the outer wall of the filter connecting pipe (1); The collection assembly includes a collection frame (15) fixedly connected to the outer wall of the filter connecting pipe (1), a through hole is formed in the circumferential side wall of the filter connecting pipe (1), the filter connecting pipe (1) is in communication with the collection frame (15) through the through hole, and two quick disassembly components are fixedly connected to the outer wall of the collection frame (15); The quick disassembly component includes an arc-shaped mounting side plate (16) fixedly connected to the outer wall of the collection frame (15), an installation hole (17) is formed in the arc-shaped mounting side plate (16), an installation sleeve (18) is fixedly connected to the connecting frame (5), a plug-in shaft (19) is slidingly connected through the axial side wall of the installation sleeve (18), the plug-in shaft (19) is matched with the installation hole (17), an abutting piece (20) is fixedly connected to the outer wall of the plug-in shaft (19) located in the installation sleeve (18), and a first compression spring (21) is fixedly connected between the abutting piece (20) and the inner wall of the installation sleeve (18); High-frequency vibration assembly, the high-frequency vibration assembly is fixedly connected to the inner wall of the filter tail pipe (3).

2. The particulate air filter for an exhaust system of an internal combustion engine according to claim 1, characterized by The high-frequency vibration assembly includes an annular limiting support (22) fixedly connected to the inner wall of the filter tail pipe (3), two sliding pins (23) are fixedly connected to the annular rod (7), two through holes are formed in the annular limiting support (22), the sliding pins (23) are matched with the through holes, the second compression spring (24) is fixedly connected between the annular rod (7) and the annular limiting support (22) and between the end of the annular limiting support (22) and the sliding pin (23), and a vibration driving component is fixedly connected to the inner wall of the adapter pipe (2).

3. The particulate air filter for an exhaust system of an internal combustion engine according to claim 2, characterized by The vibration driving component comprises two rotating supports (25) fixedly connected to the inner wall of the adapter pipe (2), a roller (26) rotatably connected to each of the two rotating supports (25), an annular corrugated plate (27) fixedly connected to the annular rod (7), the roller (26) being in abutment with the annular corrugated plate (27), two toothed rings (28) fixedly connected to the outer wall of the adapter pipe (2), a rotating rod (29) rotatably connected to the connecting frame (5), two transmission gears (30) fixedly connected to the outer wall of the rotating rod (29), the two transmission gears (30) being in meshing engagement with the two toothed rings (28) respectively, and a low-speed motor (31) fixedly connected to the connecting frame (5), the output end of the low-speed motor (31) being fixedly connected to the end portion of the rotating rod (29).

4. The particulate air filter for an exhaust system of an internal combustion engine according to claim 1, characterized by A sliding hole is formed in the connecting frame (5), the plug-in shaft (19) is matched with the sliding hole, and the end portion of the plug-in shaft (19) away from the mounting sleeve (18) is fixedly connected with a traction tab (32).

5. The particulate air filter for an exhaust system of an internal combustion engine according to claim 3, characterized by The roller (26) is made of titanium carbonitride-based hard alloy material, and the outer surface of the roller (26) is provided with transverse anti-skid lines.

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