CN118168139A

CN118168139A - Multifunctional FFU filtering module and application method thereof

Info

Publication number: CN118168139A
Application number: CN202410390898.1A
Authority: CN
Inventors: 房子豪; 杨雄; 肖亚丽
Original assignee: Shenzhen Zhengyuan Environmental Technology Co ltd
Current assignee: Shenzhen Zhengyuan Environmental Technology Co ltd
Priority date: 2024-04-02
Filing date: 2024-04-02
Publication date: 2024-06-11

Abstract

The invention relates to the technical field of FFU filtration and discloses a multifunctional FFU filtration module and a use method thereof. According to the scheme, the air inlet filter assembly and the filter units are arranged, the air inlet filter assembly is composed of the plurality of filter units, the first filter screen on each filter unit can play a role in filtering, the second cleaning test block and the first cleaning test block are matched for brushing the first filter screen at regular time, the air inlet filter assembly is required to be composed through the plurality of filter units, and therefore replacement and maintenance of the first filter screen at the later stage are facilitated, and the overall practicability of the air inlet filter assembly is improved.

Description

Multifunctional FFU filtering module and application method thereof

Technical Field

The invention belongs to the technical field of FFU filtration, and particularly relates to a multifunctional FFU filtration module and a use method thereof.

Background

The prior art discloses split type FFU filter fan (application number 202111240620.9), it is including installing the box in the factory building wall body and installing the filter on the factory building ceiling, the box top is uncovered setting, the thickness of box is less than wall thickness and one side and wall body laminating, be provided with centrifugal fan in the box, set up the air intake that is used for inhaling the interior air of factory building on the box, the box top is provided with the air pipe who is used for the air supply, air pipe's one end and the uncovered fixed connection of box top, air pipe's the other end and filter fixed connection.

The above-mentioned prior art mainly carries out air inlet filtration through setting up the air inlet filter screen, but when long-term use, needs periodic maintenance, and the reason is when carrying out negative pressure suction, the air current that flows carries dirty dust etc. can adsorb on the surface of air inlet filter screen, and the gradual can produce and pile up, causes the lower problem of air inlet rate to just result in the low problem of air-out rate of airing exhaust, and the aforesaid problem that prior art in order to solve often needs regular maintenance and clearance, just so probably increased the cost of maintaining.

The present invention has been made in view of this.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:

The utility model provides a multi-functional FFU filters module, includes air pipe and box, and air pipe and box fixed mounting are in the same place, install centrifugal fan in the box, install the maintenance cabinet door on the side wall of box, install out air filter frame through the bolt on air pipe's the free end, install the second filter screen on the air filter frame, the bottom of box is provided with the air inlet filter unit that is used for carrying out the layering filterable air, be provided with the self-cleaning subassembly that is used for the air inlet filter unit to carry out reciprocating type clearance filtration dirty on the lateral wall of box, the air inlet filter unit includes multiunit detachable mounting filter unit together, multiunit filter unit stacks each other together.

As a preferred embodiment of the invention, the filtering unit comprises a filtering bottom frame and two filtering side plates, wherein the two filtering side plates are fixedly arranged on two side wall surfaces of the filtering bottom frame through screws, two connecting side plates are fixedly arranged on one side wall surface of the two filtering side plates, which is close to each other, reinforcing ribs are fixedly arranged between the two connecting side plates on each side, a mounting groove is formed in a gap between the two filtering side plates and the two connecting side plates, and a first filter screen is arranged in the mounting groove.

As a preferred embodiment of the invention, the outer walls of both sides of each filtering bottom frame and the outer walls of both sides of the bottom of the box body are respectively provided with a limiting frame through screws, the limiting frames are hollow rectangular bodies with hollowed upper and lower ends, the outer walls of the middle parts of the limiting frames are provided with through holes, the outer walls of both sides of each filtering side plate are respectively provided with an inserting plate through screws, and the inserting plates are vertically corresponding to the positions of the limiting frames.

In a preferred embodiment of the invention, the upper outer wall of the plugboard is provided with a threaded hole, after the plugboard is inserted into the corresponding upper limit frame, a bolt is penetrated into the through hole of the limit frame, and the inner end of the bolt is screwed into the threaded hole of the plugboard.

As a preferred embodiment of the present invention, a stop bottom plate is further provided at the bottom of the lowermost filter bottom frame, the stop bottom plate and the lowermost filter bottom frame are mounted together by screws, and a stop plate is fixedly provided on the top wall surface of the stop bottom plate, and the stop plate is inserted into the filter bottom frame.

As a preferred embodiment of the invention, the automatic cleaning assembly comprises a first hydraulic pipe and a second hydraulic pipe which are fixedly arranged on the outer walls of the two sides of the box body, wherein the first hydraulic pipe and the second hydraulic pipe are in inverted concave shapes, the second hydraulic pipe is positioned in a cavity of the first hydraulic pipe, the bottom ends of the second hydraulic pipe and the first hydraulic pipe are in a horizontal alignment state, a motor is fixedly arranged on the outer walls of the two sides of the box body through a bracket, the output end of the motor is fixedly connected with a cam, and the second hydraulic pipe and the cam are positioned between the horizontal ends of the first hydraulic pipe and the second hydraulic pipe.

As a preferred embodiment of the invention, a first pushing block which is movably arranged on the bottom wall surface of the horizontal end of the first hydraulic pipe and is used for movably penetrating the bottom wall surface of the first pushing block, a second pushing block which is movably arranged on the top wall surface of the horizontal end of the second hydraulic pipe and is used for movably penetrating the second hydraulic pipe, the first hydraulic pipe and the second hydraulic pipe are in a sealed hollow state, one end of the second pushing block positioned in the second hydraulic pipe cavity and one end of the first pushing block positioned in the first hydraulic pipe cavity are fixedly provided with piston plates, first telescopic arms are movably penetrated on the bottom wall surfaces of the two vertical ends of the first hydraulic pipe, second telescopic arms are movably penetrated on the bottom wall surfaces of the two vertical ends of the second hydraulic pipe, the bottom ends of the two first telescopic arms are fixedly connected with first cleaning test blocks, and the bottom ends of the two second telescopic arms are fixedly connected with third telescopic arms.

As a preferred embodiment of the invention, the top of the two first telescopic arms in the first hydraulic pipe cavity and the top of the two second telescopic arms in the second hydraulic pipe cavity are fixedly provided with stop pistons, the outer wall of the first telescopic arms in the first hydraulic pipe cavity and the outer wall of the second telescopic arms in the second hydraulic pipe cavity are sleeved with return springs, the cavities of the second hydraulic pipe and the first hydraulic pipe are filled with hydraulic oil, and the second hydraulic pipe and the first hydraulic pipe are in a sealed state.

As a preferable implementation mode of the invention, the inner walls of the two first cleaning test blocks and the inner wall of the second cleaning test block are also fixedly provided with bristles.

The application method of the multifunctional FFU filter module comprises the following working steps:

the first step: the working switch of the centrifugal fan in the box body is turned on, so that negative pressure is generated in the box body cavity, air is sucked through the air inlet filter assembly at the bottom of the box body, the air is filtered through the air inlet filter assembly, the filtered air is guided through the ventilating duct, and finally, the air can be discharged after being filtered through the second filter screen;

And a second step of: when the air passes through the first filter screen, dust and dirt in the air can be filtered on the outer surface of the air by the first filter screen, a working switch of a motor is turned on regularly, the motor can drive a cam to rotate, and when the cam rotates for one circle, the cam can push the first pushing block and the second pushing block twice;

And a third step of: when the cam extrudes and pushes the first pushing block and the second pushing block, the second pushing block and the first pushing block push the piston plate, the piston plate pushes hydraulic oil in the second hydraulic pipe and the first hydraulic pipe cavity, the piston plate is clamped in the horizontal end cavities of the first hydraulic pipe and the second hydraulic pipe, after pushing, the pressure of the hydraulic oil in the second hydraulic pipe and the first hydraulic pipe cavity is increased, after the pressure is increased, the first telescopic arm drives the first cleaning test block to move downwards under the action of hydraulic pressure, the second telescopic arm drives the third telescopic arm and the second cleaning test block to move downwards, and bristles on the inner walls of the second cleaning test block and the first cleaning test block can simultaneously carry out friction cleaning on the wall surface of the first filter screen;

Fourth step: when dismantling the filter unit, can directly rotate and unscrew the bolt on the spacing frame, then will filter the whole follow last filter unit of curb plate and split down, after the dismantlement, dismantle or change or wash the maintenance to the first filter screen of filter curb plate both sides, after daily maintenance, install the butt joint again according to the same mode.

Compared with the prior art, the invention has the following beneficial effects:

1. According to the scheme, the air inlet filter assembly and the filter units are arranged, the air inlet filter assembly is composed of the plurality of filter units, the first filter screen on each filter unit can play a role in filtering, the second cleaning test block and the first cleaning test block are matched for brushing the first filter screen at regular time, the air inlet filter assembly is required to be composed through the plurality of filter units, and therefore replacement and maintenance of the first filter screen at the later stage are facilitated, and the overall practicability of the air inlet filter assembly is improved.

2. According to the scheme, through the arranged filter units, the centrifugal fan can be better matched, the air inlet and suction efficiency can be correspondingly improved by increasing the filter units, the air flow can enter and pass through conveniently, and if the filter units are only one group, the air inlet and suction efficiency can be correspondingly reduced, and the centrifugal fan can be matched according to the actual centrifugal fan power.

3. According to the technical scheme, through the automatic cleaning assembly, the working switch of the motor is opened, the motor can drive the cam to rotate, when the cam rotates for one circle at a time, the cam can push the first pushing block and the second pushing block for two times, after pushing, the pressure of hydraulic oil in the second hydraulic pipe and the first hydraulic pipe cavity is increased, after increasing, the first telescopic arm drives the first cleaning test block to move downwards under the action of the hydraulic pressure, the second telescopic arm drives the third telescopic arm and the second cleaning test block to move downwards, and when the second telescopic arm drives the third telescopic arm and the second cleaning test block to move downwards, bristles on the inner wall of the second cleaning test block and the inner wall of the first cleaning test block can simultaneously carry out friction cleaning on the wall surface of the first filter screen, dirt adsorbed on the outer wall of the first filter screen is wiped away, so that the first filter screen can be automatically cleaned in a reciprocating mode, and manual periodic cleaning is not needed.

4. According to the scheme, when the filter units are disassembled, the bolts on the limiting frames can be directly rotated to unscrew, then the whole filter side plate is detached from the upper filter unit, after the filter side plate is detached, the first filter screens on the two sides of the filter side plate are disassembled or replaced or cleaned for maintenance, after daily maintenance, the filter side plates are assembled and docked in the same mode, so that the filter side plate is more convenient to use and operate, and the maintenance difficulty is reduced.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a bottom view of the present invention;

FIG. 3 is a split perspective view of the present invention;

FIG. 4 is a side perspective view of the present invention;

FIG. 5 is a perspective view of an air intake filter assembly 20 of the present invention;

Fig. 6 is a perspective view of the filter side plate 21 of the present invention;

FIG. 7 is a perspective view of the robotic cleaning assembly 30 of the present invention;

Fig. 8 is a cut-away view of a second hydraulic tube 36 of the present invention.

In the figure: 10. a ventilation duct; 11. a case; 12. overhauling a cabinet door; 13. an air outlet filtering frame; 14. a second filter screen; 20. an air inlet filter assembly; 21. a filtering side plate; 22. a filter bottom frame; 23. connecting side plates; 24. reinforcing ribs; 25. a mounting groove; 26. a stop bottom plate; 27. a stopper plate; 28. a limit frame; 29. inserting plate; 30. an automatic cleaning assembly; 31. a cam; 32. a first hydraulic pipe; 33. a first push block; 34. a first telescopic arm; 35. a first cleaning block; 36. a second hydraulic pipe; 37. a second pushing block; 38. a second telescopic arm; 39. a piston plate; 40. a first filter screen; 41. a stop piston; 42. a third telescoping arm; 43. a second cleaning block; 44. brushing; 45. a return spring; 46. and a motor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.

The utility model provides a multi-functional FFU filtration module, as shown in fig. 1, fig. 2, fig. 3, fig. 4, including air pipe 10 and box 11, air pipe 10 and box 11 fixed mounting are in the same place, install centrifugal fan in the box 11, install on the side wall of box 11 and overhaul cabinet door 12, install air-out filter frame 13 through the bolt on the free end of air pipe 10, install second filter screen 14 on the air-out filter frame 13, the bottom of box 11 is provided with the air inlet filter component 20 that is used for carrying out the layering filterable to air, is provided with on the lateral wall of box 11 and is used for air inlet filter component 20 to carry out reciprocating type self-cleaning subassembly 30 that the filtration dirty, and air inlet filter component 20 includes multiunit demountable installation's filter unit together, multiunit filter unit stacks each other.

As shown in fig. 5 and 6, the filtering unit includes a filtering bottom frame 22 and two filtering side plates 21, the two filtering side plates 21 are fixedly mounted on two side wall surfaces of the filtering bottom frame 22 through screws, two connecting side plates 23 are fixedly mounted on one side wall surface of the two filtering side plates 21, reinforcing ribs 24 are fixedly mounted between the two connecting side plates 23 on each side, a mounting groove 25 is formed in a gap between the two filtering side plates 21 and the two connecting side plates 23, and a first filter screen 40 is mounted in the mounting groove 25. The two side outer walls of each filtering bottom frame 22 and the two side bottom outer walls of the box 11 are respectively provided with a limiting frame 28 through screws, the limiting frames 28 are hollow rectangular bodies with hollowed upper and lower ends, through holes are formed in the middle outer walls of the limiting frames 28, the two side outer walls of each filtering side plate 21 are respectively provided with an inserting plate 29 through screws, and the inserting plates 29 correspond to the limiting frames 28 in position up and down. The upper outer wall of the plugboard 29 is provided with a threaded hole, and after the plugboard 29 is inserted into the corresponding upper limit frame 28, a bolt penetrates through the through hole of the limit frame 28, and the inner end of the bolt is screwed into the threaded hole of the plugboard 29. The bottom of the lowermost filtering bottom frame 22 is also provided with a blocking bottom plate 26, the blocking bottom plate 26 and the lowermost filtering bottom frame 22 are mounted together through screws, a blocking plate 27 is fixedly arranged on the top wall surface of the blocking bottom plate 26, and the blocking plate 27 is inserted into the filtering bottom frame 22.

As shown in fig. 7, 8,1 and 3, the automatic cleaning assembly 30 includes a first hydraulic tube 32 and a second hydraulic tube 36 fixedly mounted on the outer walls of two sides of the casing 11, the first hydraulic tube 32 and the second hydraulic tube 36 are in inverted concave shapes, the second hydraulic tube 36 is located in a cavity of the first hydraulic tube 32, bottom ends of the second hydraulic tube 36 and the first hydraulic tube 32 are in a horizontal aligned state, a motor 46 is fixedly mounted on the outer walls of two sides of the casing 11 through a bracket, an output end of the motor 46 is fixedly connected with a cam 31, and the second hydraulic tube 36 and the cam 31 are located between horizontal ends of the first hydraulic tube 32 and the second hydraulic tube 36. The horizontal end bottom wall surface of the first hydraulic pipe 32 is movably provided with a first pushing block 33 which movably penetrates through the bottom wall surface of the first pushing block 33, the horizontal end top wall surface of the second hydraulic pipe 36 is movably provided with a second pushing block 37 which movably penetrates through the second hydraulic pipe 36, the first hydraulic pipe 32 and the second hydraulic pipe 36 are in a sealed hollow state, one end of the second pushing block 37 in the cavity of the second hydraulic pipe 36 and one end of the first pushing block 33 in the cavity of the first hydraulic pipe 32 are fixedly provided with piston plates 39, the two vertical end bottom wall surfaces of the first hydraulic pipe 32 are movably penetrated by first telescopic arms 34, the two vertical end bottom wall surfaces of the second hydraulic pipe 36 are movably penetrated by second telescopic arms 38, the bottom ends of the two first telescopic arms 34 are fixedly connected with first cleaning test blocks 35, and the bottom ends of the two second telescopic arms 38 are fixedly connected with third telescopic arms 42. The two first telescopic arms 34 are located at the top of the first hydraulic pipe 32 cavity and the two second telescopic arms 38 are located at the top of the second hydraulic pipe 36 cavity, the stop piston 41 is fixedly installed on the top of the first telescopic arms 34, the outer wall of the first hydraulic pipe 32 cavity and the outer wall of the second telescopic arms 38, which are located in the second hydraulic pipe 36 cavity, are sleeved with the return springs 45, hydraulic oil is filled in the cavities of the second hydraulic pipe 36 and the first hydraulic pipe 32, and the second hydraulic pipe 36 and the first hydraulic pipe 32 are in a sealed state. The inner walls of the first cleaning block 35 and the second cleaning block 43 are also fixedly provided with bristles 44.

When the air filter is used, the working switch of the centrifugal fan in the box body 11 is turned on, so that negative pressure is generated in the cavity of the box body 11, air is sucked through the air inlet filter assembly 20 at the bottom of the box body 11, the air is filtered through the air inlet filter assembly 20, the filtered air is guided through the ventilating duct 10, and finally, the filtered air can be discharged after being filtered through the second filter screen 14.

Specifically, when air passes through the first filter screen 40, the air can be filtered, dust and dirt in the air can be filtered on the outer surface of the first filter screen 40, the motor 46 can drive the cam 31 to rotate at regular time, when the cam 31 rotates for one circle, the cam 31 can push the first pushing block 33 and the second pushing block 37 twice, when the cam 31 does not push the first pushing block 33 and the second pushing block 37, under the elastic action of the return spring 45, the second cleaning test block 43 and the first cleaning test block 35 are positioned on the upper side of the first filter screen 40, when the cam 31 pushes the first pushing block 33 and the second pushing block 37, the second pushing block 37 and the first pushing block 33 push the piston plate 39, the piston plate 39 pushes hydraulic oil in the cavity of the second hydraulic pipe 36 and the first hydraulic pipe 32, after pushing, the second pushing block 33 and the second pushing block 37, the second cleaning test block 43 and the second filter screen 40 can be cleaned by the first pushing block 37, the second pushing arm 35, the second pushing the first filter screen 40 can be cleaned by the extension arm 43 and the second filter screen 40, and the second filter screen 40 can be cleaned by the extension and the extension arm 43 can be cleaned by the extension and the extension of the first filter screen 40 at regular time.

Further, since the air intake filter assembly 20 is composed of a plurality of filter units up and down, the first filter screen 40 on each filter unit can play a role in filtering, and the first filter screen 40 needs to be cleaned by cleaning in cooperation with the second cleaning test block 43 and the bristles 44 on the first cleaning test block 35 at regular time, the air intake filter assembly 20 needs to be composed by a plurality of filter units, so that the first filter screen 40 is convenient to replace in the later stage, the service life of the bristles 44 may be reduced to a certain extent in the process of rubbing the first filter screen 40 for a long time, and therefore, the first filter screen 40 needs to be replaced more conveniently; meanwhile, the scheme can be better matched with the centrifugal fan through the arranged multiple groups of filtering units, the air inlet and suction efficiency can be correspondingly increased through the addition of the filtering units, the air flow is convenient to enter and pass through, and if the filtering units are only one group, the air inlet and suction efficiency can be correspondingly reduced, and the air inlet and suction efficiency can be matched with the actual centrifugal fan power.

It should be noted that, when the filter unit is disassembled, the bolts on the limiting frame 28 can be directly rotated to unscrew, then the filter side plate 21 is integrally detached from the upper filter unit, after the disassembly, the first filter screens 40 on two sides of the filter side plate 21 are disassembled, replaced or cleaned for maintenance, and after daily maintenance, the filter side plates are assembled and butted in the same manner, so that the use and the operation are more convenient, and the maintenance difficulty is reduced.

It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a multi-functional FFU filters module, includes air pipe (10) and box (11), and air pipe (10) and box (11) fixed mounting are in the same place, install centrifugal fan in box (11), its characterized in that, install on the side wall of box (11) and overhaul cabinet door (12), install air-out filter frame (13) through the bolt on the free end of air pipe (10), install second filter screen (14) on air-out filter frame (13), the bottom of box (11) is provided with air inlet filter unit (20) that are used for carrying out layering filterable to the air, is provided with on the lateral wall of box (11) and is used for air inlet filter unit (20) to carry out reciprocating type clearance filtration dirty self-cleaning subassembly (30), and air inlet filter unit (20) are including multiunit detachable installation filter unit together, multiunit filter unit stacks each other together.

2. The multifunctional FFU filtering module of claim 1, wherein the filtering unit comprises a filtering bottom frame (22) and two filtering side plates (21), the two filtering side plates (21) are fixedly installed on two side wall surfaces of the filtering bottom frame (22) through screws, two connecting side plates (23) are fixedly installed on one side wall surface, which is close to each other, of the two filtering side plates (21), reinforcing ribs (24) are fixedly installed between the two connecting side plates (23) on each side, a mounting groove (25) is formed by a gap between the two filtering side plates (21) and the two connecting side plates (23), and a first filter screen (40) is installed in the mounting groove (25).

3. The multifunctional FFU filtering module set according to claim 2, wherein limiting frames (28) are installed on the outer walls of the two sides of the filtering bottom frame (22) and the outer walls of the bottom of the two sides of the box body (11) through screws, the limiting frames (28) are hollow rectangular bodies with hollowed upper and lower ends, through holes are formed in the outer walls of the middle of the limiting frames (28), inserting plates (29) are installed on the outer walls of the two sides of each filtering side plate (21) through screws, and the inserting plates (29) correspond to the limiting frames (28) in position up and down.

4. A multifunctional FFU filtration module according to claim 3, wherein the upper outer wall of the plugboard (29) is provided with a threaded hole, after the plugboard (29) is inserted into the corresponding upper limit frame (28), a bolt is penetrated into the through hole of the limit frame (28), and the inner end of the bolt is screwed into the threaded hole of the plugboard (29).

5. The multifunctional FFU filter module of claim 2, wherein a stop bottom plate (26) is further arranged at the bottom of the lowermost filter bottom frame (22), the stop bottom plate (26) and the lowermost filter bottom frame (22) are mounted together through screws, a stop plate (27) is fixedly arranged on the top wall surface of the stop bottom plate (26), and the stop plate (27) is inserted into the filter bottom frame (22).

6. The multifunctional FFU filtering module of claim 1, wherein the automatic cleaning assembly (30) comprises a first hydraulic pipe (32) and a second hydraulic pipe (36) which are fixedly installed on the outer walls of two sides of the box body (11), the first hydraulic pipe (32) and the second hydraulic pipe (36) are in inverted concave shapes, the second hydraulic pipe (36) is located in a cavity of the first hydraulic pipe (32), the bottom ends of the second hydraulic pipe (36) and the first hydraulic pipe (32) are in a horizontal alignment state, a motor (46) is fixedly installed on the outer walls of two sides of the box body (11) through a bracket, an output end of the motor (46) is fixedly connected with a cam (31), and the second hydraulic pipe (36) and the cam (31) are located between the horizontal ends of the first hydraulic pipe (32) and the second hydraulic pipe (36).

7. The multifunctional FFU filtration module according to claim 6, wherein a first pushing block (33) movably penetrating the bottom wall surface of the first pushing block (33) is movably installed on the bottom wall surface of the horizontal end of the first hydraulic pipe (32), a second pushing block (37) movably penetrating the second hydraulic pipe (36) is movably installed on the top wall surface of the horizontal end of the second hydraulic pipe (36), the first hydraulic pipe (32) and the second hydraulic pipe (36) are in a sealed hollow state, one end of the second pushing block (37) located in the cavity of the second hydraulic pipe (36) and one end of the first pushing block (33) located in the cavity of the first hydraulic pipe (32) are fixedly provided with piston plates (39), two vertical end bottom wall surfaces of the first hydraulic pipe (32) are movably penetrated with first telescopic arms (34), two vertical end bottom wall surfaces of the second hydraulic pipe (36) are movably penetrated with second telescopic arms (38), the bottom ends of the two first telescopic arms (34) are fixedly connected with second telescopic arms (42), and the bottom ends of the two first telescopic arms (34) are fixedly connected with a second telescopic arm (42).

8. The multifunctional FFU filtering module of claim 7, wherein two first telescopic arms (34) are located at the top of the first hydraulic pipe (32) cavity and two second telescopic arms (38) are located at the top of the second hydraulic pipe (36) cavity, a stop piston (41) is fixedly installed on each top, the first telescopic arms (34) are located on the outer wall of the first hydraulic pipe (32) cavity and the second telescopic arms (38) are located on the outer wall of the second hydraulic pipe (36) cavity, return springs (45) are sleeved on each outer wall of the second hydraulic pipe (36) and the first hydraulic pipe (32), hydraulic oil is filled in each cavity of the second hydraulic pipe (36) and the first hydraulic pipe (32), and the second hydraulic pipe (36) and the first hydraulic pipe (32) are in a sealed state.

9. The multifunctional FFU filtration module according to claim 8, wherein the inner walls of the two first cleaning blocks (35) and the inner wall of the second cleaning block (43) are also fixedly provided with bristles (44).

10. The application method of the multifunctional FFU filter module is characterized by comprising the following working steps:

The first step: the working switch of the centrifugal fan in the box body (11) is opened, so that negative pressure is generated in the cavity of the box body (11), air is sucked through the air inlet filter assembly (20) at the bottom of the box body (11), the air is filtered through the air inlet filter assembly (20), the filtered air is guided by the ventilation pipeline (10), and finally the air can be discharged after being filtered through the second filter screen (14);

And a second step of: when the air passes through the first filter screen (40), dust and dirt in the air can be filtered on the outer surface of the air by the first filter screen (40), a working switch of the motor (46) is turned on regularly, the motor (46) can drive the cam (31) to rotate, and when the cam (31) rotates once, the cam (31) can push the first pushing block (33) and the second pushing block (37) twice;

And a third step of: when the cam (31) extrudes and pushes the first pushing block (33) and the second pushing block (37), the second pushing block (37) and the first pushing block (33) push the piston plate (39), the piston plate (39) pushes hydraulic oil in the cavities of the second hydraulic pipe (36) and the first hydraulic pipe (32), the piston plate (39) is clamped in the horizontal end cavities of the first hydraulic pipe (32) and the second hydraulic pipe (36), after pushing, the pressure of the hydraulic oil in the cavities of the second hydraulic pipe (36) and the first hydraulic pipe (32) is increased, after the pressure is increased, the first telescopic arm (34) drives the first cleaning test block (35) to move downwards under the action of hydraulic pressure, and the second telescopic arm (38) drives the third telescopic arm (42) and the second cleaning test block (43) to move downwards;

fourth step: when dismantling the filter unit, can directly rotate and unscrew the bolt on spacing frame (28), then will filter curb plate (21) whole follow last filter unit split down, after dismantling, dismantle or change or wash maintenance to first filter screen (40) of filter curb plate (21) both sides, after daily maintenance, install again according to the same mode and dock.