CN115608063A

CN115608063A - Gas filtering mechanism with self-cleaning function

Info

Publication number: CN115608063A
Application number: CN202211617696.3A
Authority: CN
Inventors: 尹全喜; 方昌江
Original assignee: Guangdong Yifil Purification Technology Co ltd
Current assignee: Guangdong Yifil Purification Technology Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-01-17
Anticipated expiration: 2042-12-16
Also published as: CN115608063B

Abstract

The invention discloses a gas filtering mechanism with a self-cleaning function, and belongs to the technical field of dust removing equipment. The utility model provides a gas filtering mechanism with self-cleaning function, includes the filter box, fixed mounting has fan and gas bag on the filter box, still includes: the two symmetrically arranged mounting seats are fixedly arranged in the opening side of the filter box, and a filter frame is elastically connected between the two mounting seats on the two sides; the supporting seat is fixedly arranged on the inner side of the filter frame, the cleaning frame is arranged on the supporting seat in a sliding mode through a driving piece, a hairbrush net is rotatably arranged in the cleaning frame, and the hairbrush net abuts against the filter frame; the motor of fixed mounting on the filter box, the output of motor passes through the shaft coupling and is connected with the driving piece that crosses, and at the driving piece during operation, the reciprocal ascending decline of clean frame makes the brush net in the clean frame carry out the deashing to crossing the filter frame, simultaneously, when crossing the filter frame atress and sliding from top to bottom, crosses the filter frame and will exert oneself and pass through the connecting rod and transmit for crossing the filter frame, makes to cross the filter frame luffing motion in the mount pad, further shakes off the dust of self.

Description

Gas filtering mechanism with self-cleaning function

Technical Field

The invention relates to the technical field of dust removing equipment, in particular to a gas filtering mechanism with a self-cleaning function.

Background

In the production of industrial products, a large amount of dust is generated, and if proper dust removal measures are not taken, the environment and air of a workshop are polluted and deteriorated, and the harm is caused to the health of human bodies. The dust settles on the production equipment, the equipment can be damaged, if the dust falls into the electrical equipment, the insulation can be damaged, and accidents can occur, if the dust deposits on parts such as a mechanical bearing, a piston, a cylinder and the like, parts can be abraded, and the service life is shortened, so that the dust is prevented from being damaged, and the dust-proof device has important significance for protecting the health of workers and cleaning the environment and promoting the social construction.

At present traditional dust collector commonly used also can pile up a lot of dusts along with the lapse of time in the use, especially on the filter screen of air intake department, after the filtration pore on the filter screen was stopped up to the dust, gas permeability is low, if not in time clearance, can increase the fan load, seriously leads to the motor to burn out.

Disclosure of Invention

The invention aims to solve the problem that in the prior art, after dust blocks filter holes on a filter screen, if the dust is not cleaned in time, the load of a fan is increased, and a motor is seriously burnt, and provides a gas filtering mechanism with a self-cleaning function.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a gas filtering mechanism with self-cleaning function, includes the filter box, fixed mounting has fan and gas bag on the filter box, the below fixed mounting of filter box has the ash bucket, still includes: the filter box comprises two symmetrically arranged mounting seats, a filter frame and a filter box body, wherein the two mounting seats are fixedly arranged in the opening side of the filter box body; the supporting seat is fixedly arranged on the inner side of the filter frame, the supporting seat is provided with a cleaning frame in a sliding manner through a driving piece, a hairbrush net is rotatably arranged in the cleaning frame, and the hairbrush net abuts against the filter frame; the motor is fixedly installed on the filter box, and the output end of the motor is connected with the driving piece through a coupler.

In order to filter dust and exhaust gas, preferably, a partition board is fixedly installed in the filter box, and a filter opening and a filter bag matched with the filter opening are arranged on the partition board.

In order to brush off dust on the filter frame, preferably, the driving member includes: the connecting shaft installed in the supporting seat is rotated, an eccentric wheel is fixedly installed on the connecting shaft, an idler wheel is rotatably installed below the cleaning frame, and the eccentric wheel is abutted to the idler wheel.

In order to shake about the brush removes the dust and drive the filter frame, further tremble the dust on removing the filter frame, furtherly, the bilateral symmetry of filter frame is provided with mounting groove and magnetic adsorption at the connecting rod in the mounting groove, the one end and the clean frame fixed connection of mounting groove are kept away from to the connecting rod.

In order to make the brush net rotate continuously and improve the cleaning efficiency, further, the brush net further comprises: the two cleaning rollers are symmetrically arranged and rotatably mounted in the cleaning frame, the end part of the cleaning roller close to one side of the supporting seat penetrates through the cleaning frame and is fixedly provided with a first belt wheel, one end of the connecting shaft penetrates through the supporting seat and is fixedly provided with a second belt wheel, and a third belt wheel is connected between the first belt wheel and the second belt wheel through belt transmission; an extension shaft is coaxially arranged in the third belt wheel, and two ends of the extension shaft are respectively and rotatably connected with a supporting arm between the cleaning roller and the connecting shaft.

In order to backflush the cloth bag used for a long time, the method preferably further comprises the following steps: fixed mounting is at the intraoral dust board of filter box air outlet, the ventilation groove has been seted up on the dust board equidistance, the guided way is installed to the symmetry on the filter box, two sliding connection has bellows between the guided way, be connected with the pulse tube between bellows and the gas package, the first tuyere of fixed mounting multiunit on the bellows, the working face of first tuyere is towards the ventilation groove.

In order to concentrate wind power and improve the back blowing effect, furthermore, a push rod is fixedly installed at one end of the extending shaft penetrating out of the supporting arm, driving wheels are rotatably installed at two sides below the dust baffle plate, a limiting wheel is coaxially installed on the driving wheel at one side, a limiting groove and a sliding pin which is installed in the limiting groove in a sliding mode are arranged on the limiting wheel, and the sliding pin is fixedly connected with the push rod; a transmission belt is wound between the transmission wheels at two sides, and an opening is arranged on the transmission belt, and two ends of the opening are fixedly connected with two sides of the bellows.

In order to reduce the dust entering of the device in use, furthermore, a rotating rod is rotatably mounted in the ventilation groove of the dust baffle plate, and blades are fixedly mounted on the rotating rod.

In order to open the blades to perform backflushing on the cloth bag, furthermore, a gear is fixedly mounted at the upper end of the rotary rod, a rack is fixedly mounted on the air box, the gear is meshed with the rack and connected, a torsion spring is sleeved at the lower end of the rotary rod, and two ends of the torsion spring are respectively fixedly connected with the blades and the inner side wall of the ventilation groove.

In order to improve the self-cleaning capability of the hairbrush net, an air pipe is further connected between the air box and the cleaning roller, and a plurality of groups of second air nozzles are fixedly mounted on the cleaning roller.

Compared with the prior art, the invention provides a gas filtering mechanism with a self-cleaning function, which has the following beneficial effects:

1. when the gas filtering mechanism with the self-cleaning function is used for self-cleaning, on one hand, the gas bag quickly flushes compressed air into the filter bag, the filter bag instantaneously expands, and dust is stripped; on the other hand, the output end of the motor drives the connecting shaft to rotate through the coupler, the rotating connecting shaft transmits rotating force to the eccentric wheel, when one end of the eccentric wheel, which is far away from the connecting shaft, abuts against the roller, the roller is pushed to drive the cleaning frame to ascend integrally, the cleaning frame ascends and descends in a reciprocating mode under the circulating rotation of the eccentric wheel, a hairbrush net in the cleaning frame is used for cleaning dust of the filtering frame, meanwhile, when the filtering frame slides up and down under stress, the force is transmitted to the filtering frame through the connecting rod by the filtering frame, the filtering frame swings up and down in the mounting seat, dust per se is further shaken off, and the gas permeation rate is improved.

2. This gas filtering mechanism with self-cleaning function, during the rotation of connecting axle, the connecting axle drives coaxial second band pulley rotatory, and rotatory second band pulley passes through the belt and drives first band pulley rotation, and the first band pulley of pivoted transmits rotatory power to the cleaning roller on to make the tensioning brush net on the cleaning roller constantly transmit, the brush on the brush net constantly with clean the interior filter screen contact of frame, further improve the dust in the clean frame.

3. This gas filtering mechanism with self-cleaning function, during the during operation of bellows, in the compressed air partly passes through the cleaning roller that the tuber pipe got into near the supporting seat in the bellows, and after brush net and second tuyere contacted, compressed gas jetted the dust of adhesion on with the brush net, further improved the automatically cleaning ability of brush net.

4. This gas filtering mechanism with self-cleaning function, when bellows removed, the rack contacted with the gear earlier, made the blade upset, then first tuyere aims at the filter bag and jets, and bellows can concentrate compressed air and act on in a set of filter bag better, improves the effect that the dust was peeled off, and under the elastic potential energy of torsional spring, the blade resets and closes the ventilation groove again after the jetting finishes, reduces the entering of dust.

Drawings

FIG. 1 is a schematic structural diagram of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 2 is a second perspective view of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 3 is a schematic view of a driving member of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 4 is a schematic view of an internal structure of a mounting seat of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 5 is a schematic structural view of a portion A of FIG. 2 of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 6 is a schematic structural diagram of a bellows of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 7 is a schematic view of a spacing wheel structure of a gas filtering mechanism with a self-cleaning function according to the present invention;

FIG. 8 is a schematic structural diagram of a filter bag of a gas filtering mechanism with a self-cleaning function according to the present invention;

fig. 9 is a schematic structural view of a cleaning roller of a gas filtering mechanism with a self-cleaning function according to the present invention.

In the figure: 1. a filter box; 2. a mounting seat; 3. a filter frame; 301. mounting grooves; 4. a supporting base; 5. cleaning the frame; 6. a fan; 7. an ash hopper; 8. a brush net; 9. a motor; 10. a connecting rod; 11. a connecting shaft; 12. an eccentric wheel; 13. a roller; 14. a cleaning roller; 15. a first pulley; 16. a second pulley; 17. a third belt pulley; 18. an extension shaft; 19. a support arm; 20. a guide rail; 21. an air box; 22. a pulse tube; 23. a first tuyere; 24. a dust guard; 2401. a ventilation slot; 25. a blade; 26. rotating the rod; 27. a gear; 28. a rack; 29. a torsion spring; 30. a push rod; 31. a driving wheel; 32. a transmission belt; 33. a slide pin; 34. a limiting wheel; 3401. a limiting groove; 35. air bags; 36. a partition plate; 37. a filter bag; 38. an air duct; 39. a second tuyere; 40. a side plate; 41. sucking strips; 42. a slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1 to 9, a gas filtering mechanism with a self-cleaning function includes a filter box 1 having an air inlet and an air outlet, a side plate 40 is installed on one side of the filter box 1 through a bolt, and a space for installing driving elements such as a motor 9 is left between the side plate 40 and the filter box 1, so that a gap inside the filter box 1 is reduced, and gas enters the filter box 1 and is completely intercepted by a filter screen and does not pass through the gap. The filter box 1 is fixedly provided with a fan 6 and an air bag 35, referring to fig. 8, a partition plate 36 is fixedly arranged in the filter box 1, and the partition plate 36 is provided with a filter opening and a filter bag 37 matched with the filter opening. The filter bags 37 are horizontally arranged in the filter box 1, each longitudinal filter bag 37 is a group, and a hollow plate for supporting is arranged inside the filter bag 37, so that the filter bag 37 is prevented from collapsing, and dust cakes can be removed and redistributed. During the operation of the fan 6, negative pressure is formed inside the filter box 1, external air is sucked into the filter box 1 for filtering, a large amount of dust is adsorbed on the surface of the filter bag 37 due to long-time filtering, compressed air is rapidly flushed into the filter bag 37 through the air bag 35, the filter bag 37 instantaneously expands to peel off the dust, and a dust hopper 7 is fixedly installed below the filter box 1 and used for collecting the peeled dust.

Referring to fig. 1 and 4, further comprising: the filter box comprises two symmetrically arranged mounting seats 2, a filter frame 3 is elastically connected between the mounting seats 2 at two sides, a filter screen is arranged in the filter frame 3 and used for filtering large granular substances in gas, specifically, 3-5 springs which are linearly arranged are fixedly arranged in the mounting seats 2, magnetic suction strips 41 are jointly arranged at the lower ends of the springs, and the suction strips 41 and the filter frame 3 are magnetically adsorbed, so that the filter frame 3 can be conveniently replaced; the supporting seat 4 is fixedly arranged on the inner side of the filtering frame 3, the cleaning frame 5 is arranged on the supporting seat 4 in a sliding mode through a driving piece, the hairbrush net 8 is rotatably arranged in the cleaning frame 5, and the hairbrush net 8 abuts against the filtering frame 3; the motor 9 of fixed mounting on filter box 1, the output of motor 9 passes through the shaft coupling and is connected with the overdriving spare.

Referring to fig. 1 and 3, the driving member in the present solution is further optimized.

The driving member includes: a connecting shaft 11 is rotatably arranged in the supporting seat 4, an eccentric wheel 12 is fixedly arranged on the connecting shaft 11, a roller 13 is rotatably arranged below the cleaning frame 5, and the eccentric wheel 12 is abutted against the roller 13.

During the working period of the motor 9, the output end of the motor 9 drives the connecting shaft 11 to rotate through the coupler, the rotating connecting shaft 11 transmits the rotating force to the eccentric wheel 12, when one end of the eccentric wheel 12 far away from the connecting shaft 11 abuts against the roller 13, the roller 13 is pushed to drive the cleaning frame 5 to ascend integrally, under the circulating rotation of the eccentric wheel 12, the cleaning frame 5 ascends and descends in a reciprocating mode, the brush net 8 in the cleaning frame 5 cleans the filter frame 3, and the cleaned dust directly falls into the dust hopper 7 to be collected.

It should be noted that, a sliding groove and a sliding rod 42 slidably mounted in the sliding groove are provided in the supporting seat 4, and one end of the sliding rod 42 away from the supporting seat 4 is fixedly mounted with the cleaning frame 5, so as to realize the up-and-down sliding of the cleaning frame 5.

Referring to fig. 3, further, the filter frame 3 is symmetrically provided with mounting grooves 301 and connecting rods 10 magnetically adsorbed in the mounting grooves 301 at two sides, and one end of the connecting rod 10 far away from the mounting grooves 301 is fixedly connected to the cleaning frame 5.

When the filter frame 3 slides up and down under the stress, the filter frame 3 transmits the force to the filter frame 3 through the connecting rod 10, so that the filter frame 3 swings up and down in the mounting seat 2, and further shakes off the dust of the filter frame.

Referring to fig. 3, the driving member of the present embodiment further includes: the two cleaning rollers 14 which are symmetrically arranged are rotatably arranged in the cleaning frame 5, the end part of the cleaning roller 14 close to one side of the supporting seat 4 penetrates through the cleaning frame 5 and is fixedly provided with a first belt pulley 15, one end of the connecting shaft 11 penetrates through the supporting seat 4 and is fixedly provided with a second belt pulley 16, and a third belt pulley 17 is connected between the first belt pulley 15 and the second belt pulley 16 through belt transmission; an extension shaft 18 is coaxially installed in the third belt pulley 17, and support arms 19 are rotatably connected between both ends of the extension shaft 18 and the cleaning roller 14 and the connecting shaft 11, respectively.

During the rotation of the connecting shaft 11, the connecting shaft 11 drives the coaxial second belt wheel 16 to rotate, the rotating second belt wheel 16 drives the first belt wheel 15 to rotate through a belt, the rotating first belt wheel 15 transmits the rotating force to the cleaning roller 14, so that the hairbrush net 8 tensioned on the cleaning roller 14 is continuously driven, the hairbrush on the hairbrush net 8 is continuously contacted with the filter screen in the cleaning frame 5, and the dust in the cleaning frame 5 is further improved.

In summary, when the device is self-cleaned, on one hand, the air bag 35 rapidly flushes compressed air into the filter bag 37, the filter bag 37 instantaneously expands, and dust is stripped; on the other hand, the output end of the motor 9 drives the connecting shaft 11 to rotate through the coupler, the rotating connecting shaft 11 transmits the rotating force to the eccentric wheel 12, when one end of the eccentric wheel 12, which is far away from the connecting shaft 11, abuts against the roller 13, the roller 13 is pushed to drive the cleaning frame 5 to integrally ascend, the cleaning frame 5 reciprocally ascends and descends under the circular rotation of the eccentric wheel 12, so that the brush net 8 in the cleaning frame 5 cleans the filter frame 3, meanwhile, when the filter frame 3 slides up and down under the force, the filter frame 3 transmits the force to the filter frame 3 through the connecting rod 10, so that the filter frame 3 swings up and down in the mounting seat 2, further shaking off the dust per se, in the rotation period of the connecting shaft 11, the connecting shaft 11 drives the coaxial second belt wheel 16 to rotate, the rotating second belt wheel 16 drives the first belt wheel 15 to rotate through the belt, the rotating first belt wheel 15 transmits the rotating force to the cleaning roller 14, so that the brush net 8 tensioned on the cleaning roller 14 continuously transmits, the brush net 8 on the brush net is continuously contacted with the filter screen in the cleaning frame 5, and further improves the dust in the cleaning frame 5.

Example 2:

referring to fig. 1 to 9, substantially the same as the embodiment 1, the whole technical solution is further optimized on the basis of the embodiment 1.

Referring to fig. 2 and 6, the gas filtering mechanism with self-cleaning function in this embodiment further includes: the dust board 24 is fixedly installed in the air outlet of the filter box 1, a gap for discharging filtered air is reserved between the dust board 24 and the partition plate 36, the ventilation grooves 2401 are equidistantly formed in the dust board 24, the guide rails 20 are symmetrically installed on the filter box 1, the two guide rails 20 are connected with the air box 21 in a sliding mode, the pulse tube 22 is connected between the air box 21 and the air bag 35, multiple groups of first air nozzles 23 are fixedly installed on the air box 21, the number of the first air nozzles 23 is 10-15, and the working face of each first air nozzle 23 faces the ventilation grooves 2401.

During the operation of the air bag 35, the air bag 35 transmits compressed air into the air box 21 through the pulse pipe 22, and then the compressed air is blown into the filter bags 37 through the first air nozzles 23 on the air box 21, so that the air box 21 can better concentrate and act on a group of filter bags 37, and the dust stripping effect is improved.

Referring to fig. 3 and 7, further, a push rod 30 is fixedly installed at one end of the extending shaft 18 penetrating through the supporting arm 19, driving wheels 31 are rotatably installed at two sides below the dust guard plate 24, a limiting wheel 34 is coaxially installed on the driving wheel 31 at one side, a limiting groove 3401 and a sliding pin 33 slidably installed in the limiting groove 3401 are arranged on the limiting wheel 34, and the sliding pin 33 is fixedly connected with the push rod 30; a transmission belt 32 is wound between the transmission wheels 31 at the two sides, and an opening is arranged on the transmission belt 32, and the two ends of the opening are fixedly connected with the two sides of the bellows 21.

When the cleaning frame 5 slides downwards, the supporting arms 19 on both sides push the third belt wheel 17 to approach to one side of the dust-blocking plate 24, the push rod 30 fixedly mounted on the extension shaft 18 pushes the limiting wheel 34 to rotate, the rotating limiting wheel 34 transmits force to the coaxial transmission wheel 31, so that the transmission belt 32 tensioned between the transmission wheels 31 on both sides rotates, the air box 21 moves along the guide rail 20, and each group of filter bags 37 is blown in sequence.

It should be noted that the limiting groove 3401 formed on the limiting wheel 34 includes a straight line section and a spiral section, two ends of the spiral section are respectively connected with the straight line section, when the cleaning frame 5 is pushed upwards, the sliding pin 33 on the push rod 30 is located in the spiral section on the limiting groove 3401, and the limiting wheel 34 is pulled to rotate for one turn, when the cleaning frame 5 slides downwards, the sliding pin 33 on the push rod 30 is located in the straight line section on the limiting groove 3401, at this time, the limiting wheel 34 stops rotating, so that the intermittent rotation of the driving wheel 31 is realized, and time is provided for the blowing of the first air nozzle 23.

Referring to fig. 2 and 5, further, a rotating rod 26 is rotatably mounted in the ventilation slot 2401 of the dust guard 24, and a blade 25 is fixedly mounted on the rotating rod 26.

During operation of the fan 6, the vanes 25 close the ventilation slots 2401 in the dust guard 24 to reduce the ingress of dust, and the filtered air is exhausted directly through the fan 6.

Referring to fig. 5 and 6, further, a gear 27 is fixedly mounted at the upper end of the rotating rod 26, a rack 28 is fixedly mounted on the bellows 21, the gear 27 is engaged with the rack 28, a torsion spring 29 is sleeved at the lower end of the rotating rod 26, and two ends of the torsion spring 29 are fixedly connected with the inner side walls of the blades 25 and the ventilation slot 2401 respectively.

The rack 28 is located at the edge position on the bellows 21, when the bellows 21 moves, the rack 28 contacts with the gear 27 to overturn the blade 25, then the first nozzle 23 is aligned with the filter bag 37 for blowing, and after blowing is finished, under the elastic potential energy of the torsion spring 29, the blade 25 resets to close the ventilation slot 2401 again.

The side of the blade 25 is also fixedly provided with bristles, so that when the blade 25 is turned over, the dust in the ventilation slot 2401 can be cleaned.

Example 3:

referring to fig. 1 to 9, basically the same as the embodiment 2, on the basis of the embodiment 2, the whole technical solution is further optimized.

Referring to fig. 2, 3 and 9, the gas filtering mechanism with a self-cleaning function in the present embodiment further includes: an air pipe 38 is connected between the air box 21 and the cleaning roller 14, and a plurality of groups of second air nozzles 39 are fixedly arranged on the cleaning roller 14.

During the operation of the wind box 21, a part of compressed air in the wind box 21 enters the cleaning roller 14 close to the support base 4 through the wind pipe 38, the interior of the cleaning roller 14 is of a cavity structure, a plurality of groups of second air nozzles 39 are fixedly arranged on the outer edge surface of the cleaning roller 14 in an annular arrangement mode and are communicated with the interior cavity, and the number of the specific second air nozzles 39 is 20-25, so that after the brush net 8 is contacted with the second air nozzles 39, the compressed air blows dust adhered to the brush net 8, and the self-cleaning capability of the brush net 8 is further improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a gas filtering mechanism with self-cleaning function, includes filter box (1), fixed mounting has fan (6) and gas bag (35) on filter box (1), the below fixed mounting of filter box (1) has ash bucket (7), its characterized in that still includes:

the filter box comprises two symmetrically arranged mounting seats (2) which are fixedly arranged in the opening side of the filter box (1), and a filter frame (3) is elastically connected between the mounting seats (2) at the two sides;

the supporting seat (4) is fixedly arranged on the inner side of the filtering frame (3), the cleaning frame (5) is arranged on the supporting seat (4) in a sliding mode through a driving piece, a hairbrush net (8) is rotatably arranged in the cleaning frame (5), and the hairbrush net (8) abuts against the filtering frame (3);

the motor (9) is fixedly installed on the filter box (1), and the output end of the motor (9) is connected with the overdriving piece through a coupler.

2. The gas filtering mechanism with self-cleaning function as claimed in claim 1, wherein a partition plate (36) is fixedly installed in the filtering box (1), and the partition plate (36) is provided with filtering openings and filtering bags (37) matched with the filtering openings.

3. A gas filtering mechanism having a self-cleaning function as claimed in claim 1, wherein said driving member includes:

rotate connecting axle (11) of installing in supporting seat (4), fixed mounting has eccentric wheel (12) on connecting axle (11), the below of clean frame (5) is rotated and is installed gyro wheel (13), eccentric wheel (12) offset with gyro wheel (13).

4. The gas filtering mechanism with the self-cleaning function according to claim 3, wherein the two sides of the filtering frame (3) are symmetrically provided with mounting grooves (301) and connecting rods (10) magnetically adsorbed in the mounting grooves (301), and one end of each connecting rod (10) far away from the mounting groove (301) is fixedly connected with the cleaning frame (5).

5. A gas filtering mechanism with self-cleaning function according to claim 4, further comprising:

the cleaning device comprises two cleaning rollers (14) which are symmetrically arranged and rotatably mounted in a cleaning frame (5), wherein the end part of the cleaning roller (14) close to one side of a supporting seat (4) penetrates through the cleaning frame (5) and is fixedly provided with a first belt wheel (15), one end of a connecting shaft (11) penetrates through the supporting seat (4) and is fixedly provided with a second belt wheel (16), and a third belt wheel (17) is connected between the first belt wheel (15) and the second belt wheel (16) through belt transmission;

an extension shaft (18) is coaxially arranged in the third belt wheel (17), and two ends of the extension shaft (18) are respectively and rotatably connected with a supporting arm (19) between the cleaning roller (14) and the connecting shaft (11).

6. A gas filtering mechanism with self-cleaning function according to claim 5, further comprising:

fixed mounting keeps off dirt board (24) in filter box (1) air outlet, ventilation groove (2401) have been seted up to keep off dirt board (24) equidistance, filter box (1) is gone up the symmetry and is installed guided way (20), two sliding connection has bellows (21) between guided way (20), be connected with pulse tube (22) between bellows (21) and gas bag (35), fixed mounting has first tuyere (23) of multiunit on bellows (21), the working face of first tuyere (23) is towards ventilation groove (2401).

7. The gas filtering mechanism with the self-cleaning function as claimed in claim 6, wherein the extending shaft (18) penetrates through one end of the supporting arm (19) and is fixedly provided with a push rod (30), the two sides below the dust guard plate (24) are rotatably provided with driving wheels (31), one side of the driving wheels (31) is coaxially provided with a limiting wheel (34), the limiting wheel (34) is provided with a limiting groove (3401) and a sliding pin (33) slidably arranged in the limiting groove (3401), and the sliding pin (33) is fixedly connected with the push rod (30);

a transmission belt (32) is wound between the transmission wheels (31) at the two sides, an opening is arranged on the transmission belt (32), and the two ends of the opening are fixedly connected with the two sides of the bellows (21).

8. The gas filtering mechanism with self-cleaning function as claimed in claim 7, wherein a rotating rod (26) is rotatably mounted in the ventilating slot (2401) of the dust board (24), and the blade (25) is fixedly mounted on the rotating rod (26).

9. The gas filtering mechanism with self-cleaning function according to claim 8, wherein the upper end of the rotating rod (26) is fixedly provided with a gear (27), the bellows (21) is fixedly provided with a rack (28), the gear (27) is engaged with the rack (28), the lower end of the rotating rod (26) is sleeved with a torsion spring (29), and two ends of the torsion spring (29) are respectively fixedly connected with the inner side walls of the blades (25) and the ventilation groove (2401).

10. A gas filtering mechanism with self-cleaning function according to claim 6, further comprising:

an air pipe (38) is connected between the air box (21) and the cleaning roller (14), and a plurality of groups of second air nozzles (39) are fixedly mounted on the cleaning roller (14).