CN210396901U - Air filter element for gas turbine air intake system - Google Patents

Abstract

The utility model relates to the technical field of auxiliary devices for filtering gas particles, in particular to an air filter element for a gas turbine air inlet system, which can conveniently dredge and clean in time when a filter element barrel is blocked seriously, thereby enhancing the use reliability; the filter element barrel comprises a working box and a filter element barrel, wherein an exhaust pipe is hermetically communicated below the left side of the working box, a maintenance cover is screwed on a bolt at an installation opening, an air inlet pipe is hermetically communicated on the maintenance cover, a filter cavity is arranged in the filter element barrel, the top end of the filter element barrel is communicated with a cleaning opening, and a filter hole group is communicated on the side wall of the filter element barrel; filter element barrel head end middle part intercommunication is provided with first logical groove to it is rotatable to be fixed with first ball group to lead to the inslot side wall at first, still includes motor, intubate, post and connecting rod to insert, and the rotatable tight cover that pastes in the intubate outside is equipped with the sealing washer, still includes connecting column group, scraper blade, drive pole, rubber mediation stick group, first set spring group and first scalable nest of tubes, still includes spacing post, two sets of spacing springs and two sets of locating pieces.

Description

Air filter element for gas turbine air intake system

Technical Field

The utility model relates to a gaseous particle filters the technical field of auxiliary device, especially relates to a gas turbine is air filter for air intake system.

Background

As is well known, an air filter element for a gas turbine intake system is an auxiliary device which is used for filtering gas particles in the operation process of the gas turbine intake system so as to better discharge the gas subsequently, and is widely used in the field of gas particle filtering; the existing air filter element for the gas inlet system of the gas turbine comprises a working box and a filter element barrel, wherein an exhaust pipe is hermetically communicated below the left side of the working box, the top end of the working box is communicated and provided with an installation opening, a maintenance cover is screwed and provided with a maintenance cover by bolts at the installation opening, an air inlet pipe is hermetically communicated on the maintenance cover, the filter element barrel is positioned in the working box, a filter cavity is arranged in the filter element barrel, the top end of the filter element barrel is communicated and provided with a cleaning opening, the top end of the filter element barrel is tightly attached to the bottom end of the maintenance cover, the side wall of the filter element barrel is tightly attached to the inner side wall of the installation opening, the air; when the air filter element for the existing gas turbine air inlet system is used, the air filter element is integrally connected into the gas turbine air inlet system, gas enters the filter cavity from the air inlet pipe, particles are filtered and retained by the filter element barrel, and the gas flows to the working box from the filter hole group and is discharged from the exhaust pipe; the air filter element for the existing gas turbine air inlet system is discovered in use, and the filter element barrel cannot be conveniently dredged and cleaned in time when being blocked seriously, so that the use reliability of the air filter element is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can conveniently in time dredge the clearance when its filter core bucket blocks up comparatively seriously to strengthen its air filter for gas turbine air intake system who uses the reliability.

The utility model discloses an air filter for gas turbine air intake system, including work box and filter element bucket, the sealed intercommunication in work box left side below has the blast pipe, work box top intercommunication is provided with the installing port, and bolt spiral shell is equipped with the maintenance cover at the installing port department, the maintenance cover is sealed the intercommunication and is had the intake pipe, the filter element bucket is located the work box inside, the filter cavity is provided with in the filter element bucket inside, filter element bucket top intercommunication is provided with the clearance mouth, filter element bucket top pastes tight maintenance cover bottom, and filter element bucket lateral wall pastes tight installing port inner wall, the intake pipe is located directly over the filter element bucket, the intercommunication is provided with the filter hole group on the filter element bucket lateral wall; the middle part of the bottom end of the filter element barrel is communicated with a first through groove, a first ball group is rotatably fixed on the inner side wall of the first through groove, the filter element barrel further comprises a motor, an insertion pipe, an insertion column and a connecting rod, the motor is installed at the bottom end of the filter element barrel, the bottom end of the insertion pipe is connected with the output end of the top of the motor, the top end of the insertion pipe penetrates through the first ball group and extends into the filter element barrel, the bottom end of the insertion column is inserted into the top end of the insertion pipe, the outer side of the insertion pipe can be rotatably and tightly attached with a sealing ring, the sealing ring is tightly attached to the inner bottom side wall of the filter element barrel, one end of the connecting rod is installed at the top end of the insertion column, the filter element barrel further comprises a connecting column group, a scraper blade, a driving rod, a rubber dredging rod group, a first set spring group and a first telescopic tube group, the, first set spring group suit is in first scalable nest of tubes outside, the scraper blade is connected respectively and the pole is moved in the drive at the both ends of connecting column group, the scraper blade pastes the tight contact with filter core bucket inside wall, still include spacing post, two sets of spacing springs and two sets of locating pieces, the inside spacing chamber that is provided with in post below, be provided with left through-hole and right through-hole on post left side wall and the right side wall respectively, intubate left side wall and right side wall are provided with spacing hole in a left side and the spacing hole in the right side respectively, spacing post is installed at spacing intracavity bottom wall, two sets of spacing springs all are located spacing intracavity, the one end of two sets of spacing springs is connected with spacing post left side and right side respectively, the other end at two sets of locating pieces is installed respectively, the other end at two sets of spacing springs is passed left through-hole and right through-hole respectively to.

Preferably, the work box left side intercommunication is provided with the observation hole to be provided with transparent baffle in observation hole department is sealed, still including changeing hand, handle, transfer line, drive board and brush, change the rotatable installation of hand in the handle left side, the handle is located the left side of work box, drives board and brush and all is located the work box, and the one end and the handle of transfer line are connected, and the other end of transfer line is connected with the drive board, and the brush is installed on the drive board, and the brush pastes tight transparent baffle.

Preferably, the transparent baffle center transversely communicates and is provided with the second and leads to the groove to at the rotatable second ball group that is fixed with of second logical inslot lateral wall, the other end of transfer line passes second ball group and stretches into to the work box inside, and the fixed cover in the drive plate outside is equipped with two sets of holding rings, and two sets of holding rings inboard all is provided with the roller train, and two sets of roller trains paste the tight contact with transparent baffle left side wall and right side wall respectively.

Preferably, still include connecting plate, mounting panel, link plate, splint, second cover spring and the flexible pipe of second, the connecting plate is installed at the work box rear side, and the mounting panel front end is connected with connecting plate rear side top, and the link plate is installed at the mounting panel rear end, and second cover spring rear side is connected with the link plate front side, and splint are installed in second cover spring front side, and the flexible pipe rear side of second is connected with the link plate front side, and splint are installed in the flexible pipe front side of second, and second cover spring suit is in the flexible pipe outside of second.

Preferably, still include two sets of brace tables, two sets of davits and two sets of rings that play, two sets of brace tables are installed respectively in the work box left and right sides, and two sets of bottoms that play the davit are installed respectively on two sets of brace table tops, and two sets of rings that play are installed respectively on the top of two sets of davits.

Preferably, the device further comprises two groups of extrusion plates, two groups of third telescopic pipes and two groups of third set springs, wherein one ends of the two groups of third telescopic pipes are respectively connected with one ends of the two groups of gaps, the other ends of the two groups of third telescopic pipes are respectively connected with the two groups of extrusion plates, one ends of the two groups of third set springs are respectively connected with one ends of the two groups of gaps, the other ends of the two groups of third set springs are respectively connected with the two groups of extrusion plates, the two groups of third set springs are sleeved outside the two groups of third telescopic pipes, and the two groups of extrusion plates are respectively attached to the other ends of the.

Preferably, a reinforcing rod group is connected between the working box and the filter element barrel and between the motor and the bottom end of the filter element barrel.

Preferably, the distance between the bottom end of the motor and the side wall of the inner bottom of the work box is 73 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the connecting rod on the inserting column can be driven by the motor to rotate, so that the rubber dredging rod group rotates along with the rotating, the rubber dredging rod group is slightly inserted into part of the filter hole group, the rubber dredging rod group is further convenient to poke, insert and dredge the blockage of the filter element barrel, the connecting column group drives the scraper to secondarily scrape and rub the inner side wall of the filter element barrel, the filter element barrel can be conveniently dredged and cleaned in time when the blockage is serious, so that the use reliability of the filter element barrel is enhanced, the filter element barrel is not easy to be punctured due to the self-softness assistance of the rubber material, the first ball group assists the rotation of the inserting tube to be smoother, the motor is a common electric device in the market, the motor can be used only by being electrically connected according to the use instruction book purchased together when the motor is bought for use, the connecting wires can be reasonably wired as long as the connecting wires, only need open the maintenance cover when dismantling, to the manual two sets of locating pieces of pressing down to the inboard, make two sets of locating pieces drill out from spacing hole in a left side and the spacing hole in the right side, thereby conveniently insert the longitudinal movement of post and dismantle or install, and two sets of locating pieces are crept into spacing hole in a left side and spacing hole in the right side in the effect of two sets of spacing springs after the adjustment, reach fixed effect, insert the post lateral wall and paste tight intubate inside wall, make things convenient for it not to rock at will, it is comparatively convenient to make the dismantlement of rubber mediation stick group clear up filter core bucket, improve its practicality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side view of the connection plate, mounting plate and peg board;

FIG. 3 is a schematic view of the structure of the cannula and post connection;

FIG. 4 is an enlarged partial view of portion A of FIG. 1;

FIG. 5 is an enlarged view of part B of FIG. 1;

FIG. 6 is an enlarged partial view of portion C of FIG. 1;

in the drawings, the reference numbers: 1. a work box; 2. a filter element barrel; 3. an exhaust pipe; 4. a maintenance cover; 5. an air inlet pipe; 6. a motor; 7. inserting a tube; 8. inserting a column; 9. a connecting rod; 10. connecting a column group; 11. a squeegee; 12. driving the rod; 13. a rubber dredging rod group; 14. a first set of springs; 15. a limiting column; 16. positioning blocks; 17. a transparent baffle; 18. turning the hand; 19. a handle; 20. a transmission rod; 21. driving the plate; 22. a brush; 23. a positioning ring; 24. a roller set; 25. a connecting plate; 26. mounting a plate; 27. hanging the plate; 28. a splint; 29. a second set of springs; 30. a support table; 31. lifting the lifting column; 32. lifting a lifting ring; 33. a pressing plate; 34. a third set of springs; 35. and a reinforcing rod group.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 6, the utility model discloses an air filter element for gas turbine air intake system, including work box 1 and filter element bucket 2, the sealed intercommunication in the left side below of work box 1 has blast pipe 3, the top of work box 1 communicates and is provided with the installing port, and bolt spiral shell is equipped with maintenance cover 4 at the installing port, the sealed intercommunication has intake pipe 5 on maintenance cover 4, filter element bucket 2 is located inside work box 1, the inside of filter element bucket 2 is provided with the filter chamber, the top of filter element bucket 2 communicates and is provided with the clearance mouth, the top of filter element bucket 2 pastes tight maintenance cover 4 bottom, and the filter element bucket 2 lateral wall pastes tight installing port inside wall, intake pipe 5 is located directly over filter element bucket 2, the intercommunication is provided with the filter hole group on the filter element bucket 2 lateral wall; the middle part of the bottom end of the filter element barrel 2 is communicated with a first through groove, a first ball group is rotatably fixed on the inner side wall of the first through groove, the filter element barrel further comprises a motor 6, an inserting pipe 7, an inserting column 8 and a connecting rod 9, the motor 6 is installed at the bottom end of the filter element barrel 2, the bottom end of the inserting pipe 7 is connected with the top output end of the motor 6, the top end of the inserting pipe 7 passes through the first ball group and extends into the filter element barrel 2, the bottom end of the inserting column 8 is inserted into the top end of the inserting pipe 7, the outer side of the inserting pipe 7 is rotatably and tightly sleeved with a sealing ring, the sealing ring is tightly installed on the inner bottom side wall of the filter element barrel 2, one end of the connecting rod 9 is installed at the top end of the inserting column 8, the filter element barrel further comprises a connecting column group 10, a scraping plate 11, a driving rod 12, a rubber dredging rod group 13, a first, the other ends of the first casing spring group 14 and the first telescopic pipe group are connected with a rubber dredging rod group 13, the first casing spring group 14 is sleeved outside the first telescopic pipe group, two ends of the connecting column group 10 are respectively connected with a scraper 11 and a driving rod 12, the scraper 11 is in close contact with the inner side wall of the filter element barrel 2, the connecting rod 9 on the inserting column 8 can be driven by a motor 6 to rotate, so that the rubber dredging rod group 13 rotates along with the connecting rod, the rubber dredging rod group 13 is slightly inserted into part of the filter hole group, so that the rubber dredging rod group 13 is convenient to poke and dredge the blockage of the filter element barrel 2, the connecting column group 10 drives the scraper 11 to scrape and clean the inner side wall of the filter element barrel 2 for the second time, the filter element barrel 2 can be conveniently and timely dredged when being seriously blocked, the use reliability of the filter element barrel is enhanced, the filter element barrel 2 is not easy to be punctured due, the first ball group assists the rotation of the cannula 7 to be smoother, the motor 6 is a common electric device in the market, when bought for use, the motor can be used only by being electrically connected according to a bought use instruction, the connecting lead can be reasonably wired as long as the connecting lead can work, so the description is omitted, the motor also comprises a limiting column 15, two groups of limiting springs and two groups of positioning blocks 16, a limiting cavity is arranged in the lower part of the cannula 8, a left through hole and a right through hole are respectively arranged on the left side wall and the right side wall of the cannula 8, a left limiting hole and a right limiting hole are respectively arranged on the left side wall and the right side wall of the cannula 7, the limiting column 15 is arranged on the bottom side wall in the limiting cavity, the two groups of limiting springs are both positioned in the limiting cavity, one end of the two groups of limiting springs is respectively connected with the left side and the right side of the limiting column 15, one end of the, the other ends of the two groups of positioning blocks 16 are respectively inserted into the left limiting hole and the right limiting hole, the rubber dredging rod group 13 is disassembled by matching the inserting column 8 and the inserting tube 7, the maintenance cover 4 is only needed to be opened when the rubber dredging rod group 13 is disassembled, the two groups of positioning blocks 16 are manually pressed inwards to drill out the two groups of positioning blocks 16 from the left limiting hole and the right limiting hole, so that the longitudinal movement disassembly or the installation of the inserting column 8 is convenient, the two groups of positioning blocks 16 drill into the left limiting hole and the right limiting hole under the action of the two groups of limiting springs after adjustment to achieve the fixing effect, the side wall of the inserting column 8 is tightly attached to the inner side wall of the inserting tube 7 to facilitate the random swinging, the rubber dredging rod group 13 is convenient to disassemble and clean the filter core barrel 2, the practicability of the rubber dredging rod group is improved, the left side of the working box 1 is communicated with the observation holes, the observation holes, The utility model comprises a driving plate 21 and a brush 22, a rotating handle 18 is rotatably arranged at the left side of a handle 19, the handle 19 is arranged at the left side of a working box 1, the driving plate 21 and the brush 22 are both arranged in the working box 1, one end of a transmission rod 20 is connected with the handle 19, the other end of the transmission rod 20 is connected with the driving plate 21, the brush 22 is arranged on the driving plate 21, and the brush 22 is tightly attached to a transparent baffle 17, the inside of the working box 1 can be observed conveniently through the transparent baffle 17, the practicability is improved, when the transparent baffle 17 is dirty, the transparent baffle 17 can be cleaned by driving the brush 22 on the driving plate 21 through manually rotating the rotating handle 18, the practicability is further improved, the design that the rotating handle 18 can rotate automatically is convenient for manual rotation, the manual rotation is more labor-saving, a second through groove is transversely communicated with the center of the transparent baffle 17, and a second ball group can be rotatably, the other end of the transmission rod 20 passes through the second ball group and extends into the work box 1, two groups of positioning rings 23 are fixedly sleeved on the outer side of the driving plate 21, roller groups 24 are arranged on the inner sides of the two groups of positioning rings 23, the two groups of roller groups 24 are respectively in close contact with the left side wall and the right side wall of the transparent baffle 17, the transmission rod 20 can be rotated more smoothly through the second ball group, the two groups of roller groups 24 can conveniently rotate, the supporting effect is improved, and the driving plate 21 is limited to rotate only without moving transversely, the transmission rod further comprises a connecting plate 25, a mounting plate 26, a hanging plate 27, a clamping plate 28, a second set of springs 29 and a second telescopic pipe, the connecting plate 25 is mounted on the rear side of the work box 1, the front end of the mounting plate 26 is connected with the upper part of the rear side of the connecting plate 25, the hanging plate 27 is mounted on the rear end of the mounting plate 26, the rear side of the second telescopic pipe is connected with the front side of a hanging plate 27, a clamping plate 28 is arranged at the front side of the second telescopic pipe, a second set of springs 29 is sleeved at the outer side of the second telescopic pipe and can be used for facilitating the integral installation and hanging of the second telescopic pipe through the connection and matching among a connecting plate 25, a mounting plate 26 and the hanging plate 27, so that the integral installation modes are various, when the second telescopic pipe is hung, the second set of springs 29 are used for driving the clamping plate 28 to be convenient to adjust forwards and backwards, the distance between the clamping plate 28 and the connecting plate 25 is suitable for external plate-shaped fixed materials with different thicknesses, the second telescopic pipe further comprises two groups of supporting tables 30, two groups of lifting columns 31 and two groups of lifting rings 32, the two groups of supporting tables 30 are respectively arranged at the left side and the right side of the work box 1, the bottom ends of the two groups of lifting columns 31, further making the whole installation mode more various, also including two sets of extrusion plates 33, two sets of third telescopic tubes and two sets of third springs 34, one end of the two sets of third telescopic tubes is connected with one end of the two sets of gaps respectively, the other end of the two sets of third telescopic tubes is connected with the two sets of extrusion plates 33 respectively, one end of the two sets of third springs 34 is connected with one end of the two sets of gaps respectively, the other end of the two sets of third springs 34 is connected with the two sets of extrusion plates 33 respectively, the two sets of third springs 34 are sleeved outside the two sets of third telescopic tubes, and the two sets of extrusion plates 33 are tightly attached to the other ends of the two sets of gaps respectively, it can conveniently lift up the lifting ring 32 at any position through the gap on the lifting ring 32, and drive the extrusion plates 33 to block the gap through the third springs 34, thereby improving the use reliability, the third telescopic tubes assist the third springs 34 not easy to extrude and deform, thereby improve its adaptability, be connected with stiffener group 35 between work box 1 and the filter core bucket 2 and between motor 6 and the 2 bottoms of filter core bucket, it can improve work box 1 and the installation steadiness of motor 6 through stiffener group 35, and motor 6 bottom and 1 inner bottom lateral wall interval 73mm of work box, it can make the convenient normal heat dissipation of thermovent of motor 6 bottom and unblock through interval 73 mm.

The utility model discloses an air filter for gas turbine air intake system, it is above the mounting means of all parts, connected mode or the mode that sets up are the welding, riveting or other common mechanical mode, wherein can slide/rotate fixedly promptly for slide/not dropping under the rotation state, sealed intercommunication is sealed when two connecting pieces communicate promptly, and the concrete structure of its all parts, model and coefficient index are its from the area technique, as long as can reach all implementation of its beneficial effect, above-mentioned all with the electric module and be the common electrical part in market with electrical apparatus, only need to connect according to the mutual electricity of the instruction manual of buying back together when using and can use, and control module is its common from taking the module, the event is no longer repeated here.

The utility model relates to an air filter element for a gas turbine air inlet system, under the condition of not explaining the contrary, "upper, lower, left, right, front, back, inner, outer, vertical and horizontal" and other directional words included in the term only represent the direction of the term under the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. An air filter element for a gas turbine air inlet system comprises a working box (1) and a filter element barrel (2), wherein an exhaust pipe (3) is hermetically communicated below the left side of the working box (1), the top end of the working box (1) is communicated with a mounting hole, a maintenance cover (4) is arranged at the mounting hole through a bolt, an air inlet pipe (5) is hermetically communicated on the maintenance cover (4), the filter element barrel (2) is positioned inside the working box (1), a filter cavity is arranged inside the filter element barrel (2), the top end of the filter element barrel (2) is communicated with a cleaning hole, the top end of the filter element barrel (2) is tightly attached to the bottom end of the maintenance cover (4), the side wall of the filter element barrel (2) is tightly attached to the inner side wall of the mounting hole, the air inlet pipe (5) is positioned right above the filter element barrel (2), and a filter hole group is communicated; it is characterized in that the middle part of the bottom end of the filter element barrel (2) is communicated with a first through groove, a first ball group is rotatably fixed on the inner side wall of the first through groove, the filter element barrel further comprises a motor (6), an insertion pipe (7), an insertion column (8) and a connecting rod (9), the motor (6) is installed at the bottom end of the filter element barrel (2), the bottom end of the insertion pipe (7) is connected with the top output end of the motor (6), the top end of the insertion pipe (7) penetrates through the first ball group and extends into the filter element barrel (2), the bottom end of the insertion column (8) is inserted into the top end of the insertion pipe (7), a sealing ring is rotatably and tightly sleeved on the outer side of the insertion pipe (7) in a sticking way and is tightly installed on the inner bottom side wall of the filter element barrel (2), one end of the connecting rod (9) is installed at the top end of the insertion column (8), the filter element barrel further comprises a connecting column group (10, the driving rod (12) is arranged at the top end of the other end of the connecting rod (9), one ends of the first set spring group (14) and the first telescopic pipe group are connected with the side wall of the driving rod (12), the other ends of the first set spring group (14) and the first telescopic pipe group are connected with the rubber dredging rod group (13), the first set spring group (14) is sleeved outside the first telescopic pipe group, two ends of the connecting column group (10) are respectively connected with the scraper (11) and the driving rod (12), the scraper (11) is tightly contacted with the inner side wall of the filter element barrel (2), the device also comprises a limiting column (15), two sets of limiting springs and two sets of positioning blocks (16), a limiting cavity is arranged inside the lower part of the inserting column (8), a left through hole and a right through hole are respectively arranged on the left side wall and the right side wall of the inserting column (8), a left limiting hole and a right limiting hole are respectively arranged on the left side wall and the right side wall of the inserting tube (, two sets of spacing springs are all located spacing intracavity, and the one end of two sets of spacing springs is connected with spacing post (15) left side and right side respectively, and the other end at two sets of spacing springs is installed respectively to the one end of two sets of locating pieces (16), and the other end of two sets of locating pieces (16) passes left through-hole and right through-hole respectively to the other end of two sets of locating pieces (16) inserts respectively to the spacing downthehole and the spacing downthehole of right side of a left side.

2. An air filter element for an air intake system of a combustion engine as defined in claim 1, wherein the left side of the working box (1) is provided with an observation hole in communication with the observation hole, and the observation hole is provided with a transparent baffle (17) in a sealing manner, the air filter element further comprises a rotating handle (18), a handle (19), a transmission rod (20), a driving plate (21) and a brush (22), the rotating handle (18) is rotatably installed at the left side of the handle (19), the handle (19) is located at the left side of the working box (1), the driving plate (21) and the brush (22) are both located in the working box (1), one end of the transmission rod (20) is connected with the handle (19), the other end of the transmission rod (20) is connected with the driving plate (21), the brush (22) is installed on the driving plate (21), and the brush (22) is tightly attached to the transparent.

3. An air filter element for an air inlet system of a combustion engine as claimed in claim 2, wherein the center of the transparent baffle plate (17) is transversely provided with a second through groove in a communicating manner, a second ball group is rotatably fixed on the inner side wall of the second through groove, the other end of the transmission rod (20) passes through the second ball group and extends into the working box (1), two groups of positioning rings (23) are fixedly sleeved on the outer side of the driving plate (21), roller groups (24) are arranged on the inner sides of the two groups of positioning rings (23), and the two groups of roller groups (24) are respectively in close contact with the left side wall and the right side wall of the transparent baffle plate (17).

4. An air filter element for an air intake system of a combustion engine according to claim 3, further comprising a connecting plate (25), a mounting plate (26), a hanging plate (27), a clamping plate (28), a second spring set (29) and a second telescopic tube, wherein the connecting plate (25) is installed at the rear side of the working box (1), the front end of the mounting plate (26) is connected with the upper part of the rear side of the connecting plate (25), the hanging plate (27) is installed at the rear end of the mounting plate (26), the rear side of the second spring set (29) is connected with the front side of the hanging plate (27), the clamping plate (28) is installed at the front side of the second spring set (29), the rear side of the second telescopic tube is connected with the front side of the hanging plate (27), the clamping plate (28) is installed at the front side of the second telescopic tube, and the second spring set (29) is sleeved.

5. An air filter element for an air intake system of a combustion engine as defined in claim 4, further comprising two sets of support platforms (30), two sets of lifting columns (31) and two sets of lifting rings (32), wherein the two sets of support platforms (30) are respectively installed at the left and right sides of the work box (1), the bottom ends of the two sets of lifting columns (31) are respectively installed at the top ends of the two sets of support platforms (30), and the two sets of lifting rings (32) are respectively installed at the top ends of the two sets of lifting columns (31).

6. An air filter element for an air inlet system of a combustion engine as claimed in claim 5, further comprising two sets of pressing plates (33), two sets of third retractable tubes and two sets of third springs (34), wherein one end of each of the two sets of third retractable tubes is connected to one end of each of the two sets of notches, the other end of each of the two sets of third retractable tubes is connected to one end of each of the two sets of pressing plates (33), one end of each of the two sets of third springs (34) is connected to one end of each of the two sets of notches, the other end of each of the two sets of third springs (34) is connected to one end of each of the two sets of pressing plates (33), the two sets of third springs (34) are sleeved outside the two sets of third retractable tubes, and the two sets of pressing.

7. An air filter element for an air intake system of a combustion engine as defined in claim 6, wherein the reinforcing rod groups (35) are connected between the working box (1) and the filter element barrel (2) and between the motor (6) and the bottom end of the filter element barrel (2).

8. An air filter for an air intake system of a combustion engine as claimed in claim 7, wherein the bottom end of the motor (6) is spaced from the inner bottom sidewall of the working chamber (1) by 73 mm.

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