Locking assembly for air filter element of air compressor

Abstract

The invention relates to the technical field of air compressors, in particular to an air compressor air filter element locking assembly which comprises a mounting plate, a primary filtering mechanism and a plurality of secondary filtering mechanisms are arranged on the mounting plate, the primary filtering mechanism comprises a mounting seat, an air inlet is formed in the top surface of the mounting seat and connected with an air inlet pipe, and the air inlet pipe is connected with an air inlet pipe. A shell mounting groove is formed in the mounting seat, an air outlet hole is formed in the air inlet pipe, the air outlet hole is communicated with the air inlet, a filter element inserting groove is formed in the center of the shell mounting groove, and a filter element shell is mounted in the shell mounting groove. The air compressor is provided with the multiple sets of filtering mechanisms, the good air filtering effect is achieved when the air compressor works, it is guaranteed that air inflow of the air compressor is cleaner, meanwhile, each set of filtering mechanism is provided with the locking mechanism, operation is easy and use is more convenient when the filter element is disassembled and assembled, and the dust removing structure is arranged at the first-stage filtering mechanism. And the first-stage filtering mechanism can be regularly dedusted, so that the filtering effect is ensured, and frequent replacement of equipment is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to an air filter element locking component of an air compressor. Background Art

[0002] An air compressor is a device that converts electrical energy into mechanical energy to produce high-pressure gas. It drives the compressor head through an electric motor to compress the atmosphere into high-pressure air for use in various equipment or systems. Air compressors are widely used in industrial and commercial fields, mainly used to provide a stable source of compressed air to support various operations that require pneumatic tools and systems. In order to ensure the cleanliness of the air compressor, it is necessary to filter the air when it enters the air compressor, which requires the use of an air filter element. The air filter element of the air compressor is an important component of the air compressor, and is mainly used to filter dust, particles and other impurities in the air entering the air compressor.

[0003] However, there are certain deficiencies in the use of existing air compressor air filters. For example, existing air filters are mostly installed using screws, which makes replacing the filter element cumbersome. In addition, in places where there is a lot of dust in the air, the air filter element has a large load and needs to be replaced more frequently, which greatly increases the workload and needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide an air filter element locking assembly for an air compressor to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air compressor air filter element locking assembly, comprising a mounting plate, a primary filter mechanism and several groups of secondary filter mechanisms are arranged on the mounting plate, the primary filter mechanism comprises a mounting seat, the top surface of the mounting seat is provided with an air inlet, the air inlet is connected to an air inlet pipe, a shell mounting groove is provided on the mounting seat, an air outlet is provided in the air inlet pipe, the air outlet is communicated with the air inlet, a filter element slot is provided at the center of the shell mounting groove, a filter element housing is installed in the shell mounting groove, an air filter element is installed in the filter element slot, and two groups of locking mechanisms for fixing the filter element housing and the air filter element are symmetrically arranged inside the mounting seat.

[0006] Preferably, the primary filter mechanism and the secondary filter mechanism have the same structure, adjacent filter mechanisms are connected by air ducts, a circular hole is provided at the center of the mounting seat, an inner air inlet hole is provided in the circular hole, and the inner air inlet hole is connected to the air duct.

[0007] Preferably, the locking mechanism comprises an inner movable block, which is slidably arranged inside the mounting seat and can only slide horizontally, a slideway is provided on the inner movable block, and a clamping protrusion is provided on one side wall of the inner movable block;

[0008] The locking mechanism also includes a lifting plate located on one side of the inner movable block, the lifting plate is longitudinally slidably arranged in the mounting seat, a compression spring is arranged on the upper surface of the lifting plate, a slider is arranged on one side wall of the lifting plate, the slider passes through the slide groove of the outer side wall of the mounting seat and the end is located outside the mounting seat, and a side guide column is arranged on the other side wall of the lifting plate, the side guide column passes through the slideway and a tooth plate is arranged at the end;

[0009] The locking mechanism also includes a column located on the other side of the inner movable block, the column is horizontally slidably arranged inside the mounting seat, an inner rotating column is rotatably installed at the center of the column, a threaded column is arranged at one end of the inner rotating column, the threaded column is screwed into the threaded hole inside the mounting seat, a gear is arranged at the other end of the inner rotating column, the gear and the gear plate are meshed and connected, and a fixed plug is arranged at the upper and lower ends of the column respectively.

[0010] Preferably, the slider is movably inserted in the lifting plate, and one end of the slider inserted in the lifting plate is connected to a tensioning spring. A group of positioning columns are provided on the end of the slider located outside the mounting seat, and a group of positioning holes are provided on both sides of the upper and lower ends of the slide groove, and the positioning columns are correspondingly inserted in the positioning holes.

[0011] Preferably, the air filter element comprises a filter portion and a filter element base, the filter element base is correspondingly inserted into the filter element slot, a side clamping hole is respectively opened on the two side walls of the filter element base, and the clamping protrusion is correspondingly inserted into the side clamping hole.

[0012] Preferably, several limit blocks are provided at the end of the filter element housing, and the limit blocks are correspondingly embedded in the housing mounting grooves, docking pins are provided on the limit blocks, fixed sockets are provided on the docking pins, and several docking sockets are provided in the housing mounting grooves, the docking pins are correspondingly plugged into the docking sockets, and the fixed blocks are correspondingly plugged into the fixed sockets.

[0013] Preferably, a first sealing airbag is arranged in the mounting groove of the outer shell, a second sealing airbag is arranged in the filter element slot, a first sealing groove is opened at the end of the filter element outer shell, the first sealing airbag is correspondingly embedded in the first sealing groove, a second sealing groove is opened at the end of the filter element base, the second sealing airbag is correspondingly embedded in the second sealing groove, a compressed airbag is connected to the bottom surface of the lifting plate, and the compressed airbag is connected to the first sealing airbag and the second sealing airbag through an air pipe.

[0014] Preferably, a rotating mounting column is rotatably mounted on the mounting plate at the primary filter mechanism, a sliding column is inserted in the rotating mounting column, one end of the sliding column is inserted into the circular hole in the center of the mounting seat and a cleaning head is arranged on this end, the cleaning head is inserted into the interior of the air filter element, a plurality of scrapers are arranged on the side wall of the cleaning head, a plurality of blowing nozzles are arranged on the surface of the scraper, a docking tube is connected to the other end of the sliding column, a sealing valve is arranged at one end of the docking tube, when no dust cleaning is performed, the sealing valve needs to be closed, the channel in the sliding column is blocked, the air filter element will not exchange air with the outside through the sliding column, thereby increasing the airtightness of the equipment, a plurality of back-blowing nozzles are arranged on the side wall of the docking tube, the number of back-blowing nozzles is three to five, a push-pull plate is rotatably sleeved in the middle part of the docking tube, two telescopic rods are installed on the back side of the mounting plate, the ends of the telescopic rods are connected to the ends of the push-pull plate, and an air duct is connected to the end of the docking tube.

[0015] Preferably, the interior of the sliding column is a hollow structure, the sliding column is a cross-shaped structure, a cross-shaped channel is provided in the middle of the rotating mounting column, the sliding column is slidably inserted in the rotating mounting column, the sliding column and the rotating mounting column rotate synchronously and can slide relative to each other, the rotating mounting column and the sliding column are closely connected, the connection is airtight and no gas will leak out from there.

[0016] Preferably, the air bleed pipe is rotatably plugged into the end of the butt-joint pipe via a sealed bearing, and the air bleed pipe is used to connect to the air compressor pressure storage tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention proposes an air compressor air filter element locking assembly, which is provided with multiple groups of filter mechanisms, and has a good air filtering effect when the air compressor is working, ensuring that the air intake of the air compressor is cleaner. At the same time, each group of filter mechanisms is provided with a locking mechanism, and the operation is simple when disassembling and assembling the filter element, which is more convenient to use. In addition, a cleaning structure is provided at the first-level filter mechanism, and the first-level filter mechanism can be cleaned regularly, thereby ensuring the filtering effect and avoiding frequent replacement of equipment.

[0019] 2. Because a locking mechanism is provided, when installing the equipment, first push the slider up and insert the positioning column into the positioning hole at the upper end. At this time, insert the filter element base and the filter element housing into the filter element slot and the housing mounting groove respectively. At this time, pull the slider outward, and the compression spring can press the lifting plate down, so that the side guide column will drop accordingly. The side guide column moves in the slideway to exert a lateral pushing force on the inner movable block to move it toward the middle, so that the clamping protrusion is inserted into the side clamping hole. At the same time, the tooth plate drops with the side guide column, which can drive the gear to drive the inner rotating column and the threaded column to rotate, so that the threaded column is screwed into the threaded hole in the mounting seat, and the column moves accordingly, so that the fixed plug block can be inserted into the fixed socket, and the air filter element and the filter element housing can be installed. The connection is firm and the operation is more convenient.

[0020] 3. When installing the air filter element and the filter element housing, the lifting plate descends to compress the compressed airbag, and the gas in the compressed airbag enters the first sealed airbag and the second sealed airbag. The first sealed airbag is correspondingly embedded in the first sealing groove, and the second sealed airbag is correspondingly embedded in the second sealing groove, thereby increasing the sealing of the connection.

[0021] 4. If there is a lot of dust in the air, the load of the first-level filtering mechanism is large, and the filter part of the air filter element accumulates dust quickly, affecting the filtering effect, it needs to be cleaned. The air bleed pipe can be directly connected to the output end of the air compressor pressure storage tank, and the sealing valve can be opened. High-pressure air enters the sliding column and the cleaning head through the air bleed pipe, and then is sprayed out through the blowing nozzle. The air sprayed from the blowing nozzle is sprayed from the inner wall of the filter part of the air filter element, which can blow away the dust and impurities accumulated on the outside, and high-pressure air will also be sprayed out from the back-blowing nozzle. The recoil force makes the docking tube rotate, and then the sliding column and the cleaning head rotate, and then the telescopic rod is controlled to extend and retract to pull the push-pull plate, so that the cleaning head rotates inside the air filter element and moves back and forth, which can clean the dust on the outside of the filter part, thereby ensuring its filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the device of the present invention.

[0023] Figure 2 This is another perspective view of the device of the present invention.

[0024] Figure 3 This is the top connection diagram of the mounting plate of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the mounting seat of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the air filter element of the present invention.

[0027] Figure 6 It is a schematic diagram of the filter element housing structure of the present invention.

[0028] Figure 7 It is a schematic diagram of the internal structure of the mounting base of the present invention.

[0029] Figure 8 It is a structural diagram of the locking mechanism of the present invention.

[0030] Fig. 9 It is a schematic diagram of the connection structure of the movable blocks in the present invention.

[0031] Fig.10 It is a schematic diagram of the lifting plate connection structure of the present invention.

[0032] Fig.11It is a schematic diagram of the column connection structure of the present invention.

[0033] Fig.12 It is a schematic diagram of the sliding column connection structure of the present invention.

[0034] In the figure: mounting plate 1, mounting seat 2, air inlet pipe 3, housing mounting groove 4, first sealing airbag 401, docking jack 402, filter element slot 5, second sealing airbag 501, air outlet 6, inner air inlet 7, air guide pipe 8, filter element housing 9, first sealing groove 901, limit card block 10, docking plug 11, fixed socket 12, filter element base 13, second sealing groove 1301, side card hole 14, inner movable block 15, slideway 16, The clamping protrusion 17, the lifting plate 18, the side guide column 19, the slider 20, the positioning column 21, the compression spring 22, the compression air bag 23, the tooth plate 24, the column 25, the fixed plug 26, the inner rotating column 27, the threaded column 28, the gear 29, the rotating mounting column 30, the sliding column 31, the cleaning head 32, the scraper 33, the blowing nozzle 34, the docking tube 35, the sealing valve 36, the back blowing nozzle 37, the push-pull plate 38, the telescopic rod 39, and the air duct 40. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 12 The present invention provides a technical solution: an air compressor air filter element locking assembly, comprising a mounting plate 1, on which a primary filter mechanism and a plurality of secondary filter mechanisms are arranged, the primary filter mechanism and the secondary filter mechanism have the same structure, the difference between the two filter mechanisms is whether a dust cleaning structure is arranged inside, the number of sets of the two filter mechanisms can be set according to actual needs, for example, two filter mechanisms are arranged with two sets, adjacent filter mechanisms are connected through an air guide pipe 8, a circular hole is arranged at the center of the mounting seat 2, an inner air inlet hole 7 is arranged in the circular hole, and the inner air inlet hole 7 is connected to the air guide pipe 8.

[0037] The primary filtering mechanism includes a mounting seat 2, the top surface of the mounting seat 2 is provided with an air inlet, the air inlet is connected to an air inlet pipe 3, a shell mounting groove 4 is provided on the mounting seat 2, an air outlet 6 is provided in the air inlet pipe 3, the air outlet 6 is communicated with the air inlet, a filter element slot 5 is provided at the center of the shell mounting groove 4, a filter element housing 9 is installed in the shell mounting groove 4, an air filter element is installed in the filter element slot 5, and two sets of locking mechanisms for fixing the filter element housing 9 and the air filter element are symmetrically arranged inside the mounting seat 2.

[0038] The locking mechanism includes an inner movable block 15, which is slidably arranged inside the mounting seat 2 and can only slide horizontally (the movable direction and distance are limited by the limiting cavity inside the mounting seat 2), a slideway 16 is provided on the inner movable block 15, and a clamping protrusion 17 is provided on one side wall of the inner movable block 15; the locking mechanism also includes a lifting plate 18 located on one side of the inner movable block 15, the lifting plate 18 is longitudinally slidably arranged in the mounting seat 2, a compression spring 22 is provided on the upper surface of the lifting plate 18, and a slider 20 is provided on one side wall of the lifting plate 18, and the slider 20 passes through the slide groove of the outer side wall of the mounting seat 2 and the end Located outside the mounting seat 2, a side guide column 19 is arranged on the other side wall of the lifting plate 18, the side guide column 19 passes through the slide 16 and a tooth plate 24 is arranged at the end; the locking mechanism also includes a column 25 located on the other side of the inner movable block 15, the column 25 is arranged to slide horizontally inside the mounting seat 2, an inner rotating column 27 is rotatably installed at the center of the column 25, a threaded column 28 is arranged at one end of the inner rotating column 27, the threaded column 28 is screwed into the threaded hole inside the mounting seat 2, a gear 29 is arranged at the other end of the inner rotating column 27, the gear 29 is meshed and connected with the tooth plate 24, and a fixed plug block 26 is respectively arranged at the upper and lower ends of the column 25.

[0039] The slider 20 is movably inserted in the lifting plate 18, and one end of the slider 20 inserted in the lifting plate 18 is connected to a tension spring. A group of positioning columns 21 are arranged on the end of the slider 20 located outside the mounting seat 2, and a group of positioning holes are arranged on both sides of the upper and lower ends of the slide groove. The positioning columns 21 are correspondingly inserted in the positioning holes. By pulling the slider 20 outward and moving the positioning columns 21 out of the positioning holes, the slider 20 can be pushed up and down. After moving to the desired position, the tension spring pulls the slider 20 back, so that the positioning columns 21 are inserted into the positioning holes to prevent the structure from loosening.

[0040] The air filter element includes a filter portion and a filter element base 13, the filter element base 13 is correspondingly inserted into the filter element slot 5, a side clamping hole 14 is respectively opened on the two side walls of the filter element base 13, and the clamping protrusion 17 is correspondingly inserted into the side clamping hole 14; a plurality of limit clamping blocks 10 are arranged at the end of the filter element housing 9, the limit clamping blocks 10 are correspondingly embedded in the housing mounting groove 4, a docking column 11 is arranged on the limit clamping block 10, a fixed socket 12 is opened on the docking column 11, a plurality of docking sockets 402 are opened in the housing mounting groove 4, the docking column 11 is correspondingly inserted in the docking socket 402, and the fixed block 26 is correspondingly inserted in the fixed socket 12.

[0041] A first sealing airbag 401 is arranged in the housing mounting groove 4, a second sealing airbag 501 is arranged in the filter element slot 5, a first sealing groove 901 is opened at the end of the filter element housing 9, the first sealing airbag 401 is correspondingly embedded in the first sealing groove 901, a second sealing groove 1301 is opened at the end of the filter element base 13, the second sealing airbag 501 is correspondingly embedded in the second sealing groove 1301, a compressed airbag 23 is connected to the bottom surface of the lifting plate 18, the compressed airbag 23 is connected to the first sealing airbag 401 and the second sealing airbag 501 through an air supply pipe, when the air filter element and the filter element housing 9 are installed, the lifting plate 18 descends to compress the compressed airbag 23, and the gas in the compressed airbag 23 enters the first sealing airbag 401 and the second sealing airbag 501, 401) is correspondingly embedded in the first sealing groove 901, and the second sealing airbag 501 is correspondingly embedded in the second sealing groove 1301, thereby increasing the sealing of the connection.

[0042] A rotating mounting column 30 is rotatably mounted on the mounting plate 1 at the primary filtering mechanism, and a sliding column 31 is inserted in the rotating mounting column 30. The interior of the sliding column 31 is a hollow structure, and the sliding column 31 is a cross-shaped structure. A cross-shaped channel is provided in the middle of the rotating mounting column 30. The sliding column 31 is slidably inserted in the rotating mounting column 30, and the sliding column 31 and the rotating mounting column 30 rotate synchronously and can slide relatively. The rotating mounting column 30 and the sliding column 31 are closely connected, and the airtightness of the connection is good and no gas will overflow from there; one end of the sliding column 31 is inserted into the circular hole in the center of the mounting seat 2 and a cleaning head 32 is provided on this end, and the cleaning head 32 is inserted into the interior of the air filter element, and a plurality of scrapers 33 are provided on the side wall of the cleaning head 32, and a plurality of air blowing nozzles are provided on the surface of the scraper 33 34. A butt joint 35 is connected to the other end of the sliding column 31. A sealing valve 36 is provided at one end of the butt joint 35. When dust cleaning is not performed, the sealing valve 36 needs to be closed, and the channel in the sliding column 31 is blocked. The air filter element will not exchange air with the outside through the sliding column 31, thereby increasing the airtightness of the equipment. A plurality of back-blowing nozzles 37 are provided on the side wall of the butt joint 35. The number of the back-blowing nozzles 37 is three to five. A push-pull plate 38 is rotatably sleeved in the middle of the butt joint 35. Two telescopic rods 39 are installed on the back of the mounting plate 1. The ends of the telescopic rods 39 are connected to the ends of the push-pull plates 38. An air duct 40 is connected to the end of the butt joint 35. The air duct 40 is rotatably plugged into the end of the butt joint 35 through a sealing bearing. The air duct 40 is used to connect the air compressor pressure storage tank.

[0043] During actual use, the air entering the air compressor enters the air inlet pipe 3 and begins to be filtered. The air enters the cavity between the filter element housing 9 and the air filter element through the air outlet 6, and then is squeezed through the filter part as the air pressure increases. The dust is blocked on the filter screen, and then the air enters the inner air inlet hole 7 and enters the secondary filter mechanism through the air guide pipe 8 for filtration. The present invention is provided with multiple groups of filter mechanisms. After the last group of secondary filter mechanisms has completed the filtration, the filtered air enters the compression mechanism through the air guide pipe 8 at the bottom (the remaining mechanisms of the air compressor are not shown in this scheme), which has a good air filtration effect when the air compressor is working, ensuring that the air intake of the air compressor is cleaner. At the same time, each group of filter mechanisms is provided with a locking mechanism, which makes the operation simple when disassembling and assembling the filter element and is more convenient to use. In addition, a cleaning structure is provided at the primary filter mechanism, and the primary filter mechanism can be cleaned regularly to ensure the filtering effect and avoid frequent replacement of equipment.

[0044] Because a locking mechanism is provided, when installing the equipment, the slider 20 is first pushed up and the positioning post 21 is inserted into the positioning hole at the upper end. At this time, the filter element base 13 and the filter element housing 9 are respectively inserted into the filter element slot 5 and the housing mounting groove 4. At this time, the slider 20 is pulled outward, and the compression spring 22 can press the lifting plate 18 downward, thereby causing the side guide post 19 to drop accordingly. The side guide post 19 moves in the slideway 16 and can apply a lateral pushing force to the inner movable block 15 to move it toward the middle, thereby causing the clamping protrusion 17 to be inserted into the side clamping hole 14. At the same time, the tooth plate 24 descends with the side guide post 19, which can cause the gear 29 to drive the inner rotating column 27 and the threaded column 28 to rotate, thereby causing the threaded column 28 to be screwed into the threaded hole in the mounting seat 2, and the column 25 moves accordingly, which can cause the fixed plug block 26 to be inserted into the fixed socket 12, and the air filter element and the filter element housing 9 can be installed. The connection is firm and the operation is more convenient. When installing the air filter element and the filter element housing 9, the lifting plate 18 descends to compress the compressed airbag 23, and the gas in the compressed airbag 23 enters the first sealed airbag 401 and the second sealed airbag 501. 401) is correspondingly embedded in the first sealing groove 901, and the second sealed airbag 501 is correspondingly embedded in the second sealing groove 1301, thereby increasing the sealing of the connection. If there is a lot of dust in the air, the load of the primary filtering mechanism is large, and the filter part of the air filter element accumulates dust quickly, affecting the filtering effect, it needs to be cleaned. The air duct 40 can be directly connected to the output end of the air compressor pressure storage tank, and the sealing valve 36 can be opened. High-pressure air enters the sliding column 31 and the cleaning head 32 through the air duct 40, and then is ejected through the blowing nozzle 34. The air ejected from the blowing nozzle 34 is sprayed from the inner wall of the filter part of the air filter element, and the dust and impurities accumulated on the outside can be blown away. In addition, high-pressure air will also be ejected from the back-blowing nozzle 37, and the recoil force causes the docking tube 35 to rotate, thereby causing the sliding column 31 and the cleaning head 32 to rotate, and then the telescopic rod 39 is controlled to telescope and pull the push-pull plate 38, so that the cleaning head 32 rotates inside the air filter element and moves back and forth, so that the dust on the outside of the filter part can be cleaned, thereby ensuring its filtering effect.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air compressor air filter element locking assembly, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a primary filtering mechanism and a plurality of groups of secondary filtering mechanisms, wherein the primary filtering mechanism comprises a mounting seat (2), wherein the top surface of the mounting seat (2) is provided with an air inlet, wherein the air inlet is connected to an air inlet pipe (3), wherein the mounting seat (2) is provided with a shell mounting groove (4), wherein an air outlet (6) is provided in the air inlet pipe (3), wherein the air outlet (6) is connected to the air inlet, wherein a filter element slot (5) is provided at the center of the shell mounting groove (4), wherein a filter element housing (9) is installed in the shell mounting groove (4), wherein an air filter element is installed in the filter element slot (5), and wherein two groups of locking mechanisms for fixing the filter element housing (9) and the air filter element are symmetrically provided inside the mounting seat (2).

2. The air filter element locking assembly for an air compressor according to claim 1, characterized in that: The primary filter mechanism and the secondary filter mechanism have the same structure, and adjacent filter mechanisms are connected via an air guide pipe (8). A circular hole is provided at the center of the mounting seat (2), and an inner air inlet hole (7) is provided in the circular hole. The inner air inlet hole (7) is connected to the air guide pipe (8).

3. The air filter element locking assembly for an air compressor according to claim 1, characterized in that: The locking mechanism comprises an inner movable block (15), the inner movable block (15) is slidably arranged inside the mounting seat (2) and the inner movable block (15) can only slide horizontally, a slideway (16) is provided on the inner movable block (15), and a clamping protrusion (17) is provided on a side wall of the inner movable block (15); The locking mechanism also includes a lifting plate (18) located on one side of the inner movable block (15), the lifting plate (18) is longitudinally slidably arranged in the mounting seat (2), a compression spring (22) is arranged on the upper surface of the lifting plate (18), a slider (20) is arranged on one side wall of the lifting plate (18), the slider (20) passes through a slide groove on the outer side wall of the mounting seat (2) and an end portion is located outside the mounting seat (2), and a side guide column (19) is arranged on the other side wall of the lifting plate (18), the side guide column (19) passes through the slideway (16) and a tooth plate (24) is arranged at the end portion; The locking mechanism also includes a column (25) located on the other side of the inner movable block (15), the column (25) is slidably arranged inside the mounting seat (2) in a transverse direction, an inner rotating column (27) is rotatably installed at the center of the column (25), a threaded column (28) is arranged at one end of the inner rotating column (27), the threaded column (28) is screwed into a threaded hole inside the mounting seat (2), a gear (29) is arranged at the other end of the inner rotating column (27), the gear (29) is meshedly connected with the toothed plate (24), and a fixed plug block (26) is arranged at the upper and lower ends of the column (25).

4. The air filter element locking assembly for an air compressor according to claim 3, characterized in that: The slider (20) is movably inserted in the lifting plate (18), and one end of the slider (20) inserted in the lifting plate (18) is connected to a tension spring. A group of positioning columns (21) are arranged on one end of the slider (20) located outside the mounting seat (2), and a group of positioning holes are respectively arranged on both sides of the upper and lower ends of the slide groove, and the positioning columns (21) are correspondingly inserted in the positioning holes.

5. The air compressor air filter element locking assembly according to claim 1, characterized in that: The air filter element comprises a filter portion and a filter element base (13), the filter element base (13) is correspondingly inserted into the filter element slot (5), a side clamping hole (14) is respectively provided on the two side walls of the filter element base (13), and the clamping protrusion (17) is correspondingly inserted into the side clamping hole (14).

6. The air compressor air filter element locking assembly according to claim 1, characterized in that: The end of the filter element housing (9) is provided with a plurality of limit blocks (10), the limit blocks (10) are correspondingly embedded in the housing mounting groove (4), a docking plug post (11) is provided on the limit block (10), a fixed socket (12) is provided on the docking plug post (11), a plurality of docking sockets (402) are provided in the housing mounting groove (4), the docking plug post (11) is correspondingly plugged into the docking socket (402), and the fixed block (26) is correspondingly plugged into the fixed socket (12).

7. The air compressor air filter element locking assembly according to claim 1, characterized in that: A first sealing airbag (401) is arranged in the housing installation groove (4), a second sealing airbag (501) is arranged in the filter element slot (5), a first sealing groove (901) is opened at the end of the filter element housing (9), the first sealing airbag (401) is correspondingly embedded in the first sealing groove (901), a second sealing groove (1301) is opened at the end of the filter element base (13), the second sealing airbag (501) is correspondingly embedded in the second sealing groove (1301), and a compression airbag (23) is connected to the bottom surface of the lifting plate (18), and the compression airbag (23) is connected to the first sealing airbag (401) and the second sealing airbag (501) through an air supply pipe.

8. The air compressor air filter element locking assembly according to claim 1, characterized in that: A rotating mounting column (30) is rotatably mounted on the mounting plate (1) at the primary filtering mechanism, a sliding column (31) is inserted into the rotating mounting column (30), one end of the sliding column (31) is inserted into a circular hole in the center of the mounting seat (2) and a cleaning head (32) is arranged on this end, the cleaning head (32) is inserted into the interior of the air filter element, a plurality of scrapers (33) are arranged on the side wall of the cleaning head (32), a plurality of air blowing nozzles (34) are arranged on the surface of the scrapers (33), and a plurality of air blowing nozzles (34) are arranged on the sliding column (31). ) is connected to a butt joint tube (35), one end of which is provided with a sealing valve (36), a plurality of back-blowing nozzles (37) are provided on the side wall of the butt joint tube (35), the number of the back-blowing nozzles (37) being three to five, a push-pull plate (38) is rotatably sleeved in the middle of the butt joint tube (35), two telescopic rods (39) are installed on the back side of the mounting plate (1), the ends of the telescopic rods (39) are connected to the ends of the push-pull plate (38), and an air duct (40) is connected to the end of the butt joint tube (35).

9. The air compressor air filter element locking assembly according to claim 1, characterized in that: The interior of the sliding column (31) is a hollow structure. The sliding column (31) is a cross-shaped structure. A cross-shaped hole is provided in the middle of the rotating installation column (30). The sliding column (31) is slidably inserted in the rotating installation column (30).

10. The air compressor air filter element locking assembly according to claim 8, characterized in that: The air bleed pipe (40) is rotatably plugged into the end of the butt-joint pipe (35) via a sealed bearing, and the air bleed pipe (40) is used to connect to the air compressor pressure storage tank.

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