Efficient air filter structure of air compressor

Abstract

The utility model provides an efficient air filter structure of an air compressor, which comprises an air filter shell and a supporting structure, a plugging block is arranged at the top of the air filter shell, and the supporting structure is arranged in the air filter shell. The efficient filter cartridge can be disassembled by taking down fixing bolts and rotating a rotating plate, the efficient filter cartridge can be assembled by reversely rotating the rotating plate and screwing the fixing bolts into corresponding second thread grooves, the efficient filter cartridge is convenient to assemble and disassemble, rotation of the rotating plate is limited through a single fixing bolt, and the efficient filter cartridge is convenient to assemble and disassemble. The plugging block and the high-efficiency filter cartridge are fixed more firmly and are not easy to loosen while the step of screwing the fixed bolt is reduced, the high-efficiency filter cartridge is pulled out of the air filter shell through the plugging block, the high-efficiency filter cartridge can be pulled out synchronously while the plugging block is taken down, and the operation is convenient and fast. Therefore, the high-efficiency filter cartridge can be conveniently taken out from the air filter shell.

Description

Technical Field

[0001] The utility model relates to the field of air compressors, in particular to a high-efficiency air filter structure for air compressors. Background Art

[0002] An air compressor is a device used to compress gases. An air compressor is similar in structure to a water pump. Most air compressors are reciprocating piston type, rotary vane or rotary screw. In order to better purify air, protect the main components, maintain the oil-gas separation efficiency and ensure the stable operation of the system, air usually needs to be filtered by an air filter before entering the air compressor.

[0003] In the existing utility model in China, the publication number CN208845326U discloses an air filter for an air compressor. An insertion opening for inserting a filter screen body is provided at the upper end of the casing. An installation sink is provided at the upper end of the installation disk. A sink is provided on the bottom surface of the installation sink. A first bearing is arranged in the sink. The outer ring of the first bearing is in interference fit with the sink. A regulating column is fixed to the inner ring of the first bearing. The upper end of the installation disk is connected with a fixed cover plate through the regulating column, and the regulating column and the fixed cover plate are in threaded connection; a regulating cavity is formed among the lower end surface of the fixed cover plate, the upper end surface of the installation disk and the side wall of the insertion opening. A first spring is arranged in the regulating cavity. The first spring is sleeved on the regulating column, and the lower end of the first spring falls into the installation sink; the fixed cover plate is fixedly connected with the upper panel of the casing through bolts. This device has the advantages of good sound absorption effect, strong shock absorption ability, convenient filter element replacement, etc.

[0004] Referring to the above air filter of the air compressor, when disassembling the filter screen of this air filter, since the filter screen is located inside the casing and there are no components such as pull rings for hand leverage on the installation disk at the top of the filter screen, it is difficult for the hand to apply force to take out the filter screen from inside the casing, so it is relatively inconvenient to take out the filter screen from the casing. In addition, the fixed cover plate is fixed to the casing by bolts. In order to make the fixed cover plate firmly fixed, multiple bolts are mostly required, which makes it necessary to repeatedly turn the bolts during the installation and disassembly processes. Too many bolt-turning steps make the overall installation and disassembly of the filter screen not convenient enough. Therefore, how to make the installation and disassembly of the filter screen more convenient and make it more convenient to take out the filter screen from the casing is an important problem to be solved in the design of the high-efficiency air filter structure of the air compressor. Summary of the Utility Model

[0005] The utility model provides a high-efficiency air filter structure for an air compressor to solve the problems of making the installation and disassembly of the filter screen more convenient and making it more convenient to take out the filter screen from the casing.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a high-efficiency air filter structure for an air compressor, which includes an air filter housing. A plugging block is arranged at the top of the air filter housing, and further includes:

[0008] A support structure, which is arranged inside;

[0009] An air filtering structure, which is arranged inside the support structure;

[0010] A pressing structure, which is arranged on the plugging block;

[0011] A clamping and fixing structure, which is arranged on both sides of the pressing structure. The pressing structure rotates and synchronously drives the clamping and fixing structure to move and clamp.

[0012] Preferably, an air inlet pipe is fixedly connected to the top side wall of the air filter housing. A circular through groove is opened on the top side wall of the air filter housing. A plugging block is clamped in the circular through groove. An air compressor connecting pipe is fixedly connected to the bottom of the air filter housing.

[0013] In this technical solution, the air compressor is connected through the air compressor connecting pipe. Air enters the air filter housing through the air inlet pipe. After the high-efficiency filter cartridge filters the air, it is introduced into the air compressor through the air compressor connecting pipe.

[0014] Preferably, a circular cavity is opened in the side wall of the plugging block. Square sliding grooves II are opened on both sides of the circular cavity. A plugging groove is opened at the other end of the sliding groove II. The circular cavity, the sliding groove II and the plugging groove communicate with each other.

[0015] Preferably, threaded grooves II are equidistantly opened on the top side wall of the plugging block.

[0016] Preferably, the pressing structure includes a rotating plate, a fixing bolt, a rotating rod, a first rotating gear, a first threaded rod, a limiting rod and a fixing ring. The rotating rod is rotatably connected to the inner side wall of the circular cavity. The first rotating gear is fixedly connected to the side wall of the rotating rod. The rotating plate is fixedly connected to the top of the rotating rod. The fixing bolt is threadedly connected to the side wall of the rotating plate. The fixing bolt and the threaded groove II cooperate with each other. The first threaded rod is fixedly connected to the bottom of the rotating rod. The first threaded rod extends downward out of the plugging block. The limiting rod and the fixing ring are fixedly connected to the bottom side wall of the plugging block.

[0017] In this technical solution, rotate the rotating plate. The rotating plate drives the rotating rod to rotate. The rotating rod drives the first rotating gear and the first threaded rod to rotate.

[0018] Preferably, the pressing structure includes a pressing block, a first sliding groove, and a first threaded groove. A first threaded groove and two first sliding grooves are formed in the side wall of the pressing block. The two first sliding grooves are located on both sides of the first threaded groove. A threaded rod is threadedly connected in the first threaded groove, and a limiting rod is slidably connected in the first sliding groove.

[0019] In this technical solution, the threaded rod rotates in the first threaded groove to drive the pressing block to rise and disengage from the pressing groove. The limiting rod slides in the first sliding groove to limit the rotation of the pressing block.

[0020] Preferably, the clamping and fixing structure includes a second rotating gear, a rotating block, a second threaded rod, and a threaded sleeve. The rotating block is rotatably connected to the side wall of the plugging block. One end of the rotating block is fixedly connected to the second rotating gear. The second rotating gear meshes with the first rotating gear. The other end of the rotating block is fixedly connected to the second threaded rod. A square threaded sleeve is threadedly connected to the second threaded rod. The threaded sleeve is slidably connected in the second sliding groove.

[0021] In this technical solution, the first rotating gear rotates to drive the second rotating gear to rotate. The second rotating gear drives the rotating block to rotate. The rotating block drives the second threaded rod to rotate. The second threaded rod rotates to drive the threaded sleeve to move.

[0022] Preferably, the supporting structure includes a limiting ring, a supporting rod, and a supporting block. The limiting ring is fixedly connected to the inner bottom side wall of the air filter housing. Two supporting rods are fixedly connected to the top side wall of the limiting ring. The top of the supporting rod extends out of the top side wall of the air filter housing. Supporting blocks are fixedly connected to the opposite side walls of the supporting rod at equal intervals.

[0023] In this technical solution, the limiting ring can limit the movement of the pressing ring.

[0024] Preferably, a clamping groove is formed in the side wall of the supporting rod. The clamping groove cooperates with the threaded sleeve, and the supporting rod cooperates with the plugging groove.

[0025] Preferably, the air filtering structure includes a top plate, a high-efficiency filter cartridge, a pressing ring, a connecting rope, a fixing buckle, and a pressing groove. The top of the high-efficiency filter cartridge is fixedly connected to the top plate. A pressing groove is formed in the side wall of the top plate. Two connecting ropes are fixedly connected to the side wall of the top plate. The other end of the connecting rope is fixedly connected to the fixing buckle. The bottom of the high-efficiency filter cartridge is fixedly connected to the pressing ring. The pressing ring is slidably sleeved in the limiting ring.

[0026] In this technical solution, the plugging block drives the fixing ring to move. The fixing ring pulls the fixing buckle to move. The fixing buckle drives the connecting rope to move. The connecting rope pulls the high-efficiency filter cartridge to move, so that the high-efficiency filter cartridge is pulled out of the air filter housing. Then, the fixing buckle is removed from the fixing ring to complete the disassembly of the high-efficiency filter cartridge.

[0027] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0028] The positive and progressive effects of the utility model are:

[0029] 1. Remove the fixing bolts and rotate the rotating plate to drive the clamping block to rise and disengage from the clamping groove, drive the threaded sleeve to leave the clamping groove, and the blocking block is no longer restricted. Take out the blocking block and pull out the high-efficiency filter cartridge to complete the disassembly of the high-efficiency filter cartridge. Rotate the rotating plate in the opposite direction. The rotation of the rotating plate synchronously drives the clamping block and the threaded sleeve to move. The threaded sleeve is clamped into the clamping groove to fix the blocking block. The clamping block presses against the top plate, so that the high-efficiency filter cartridge is tightly fixed in the air filter housing. Then tighten the fixing bolts into the corresponding threaded groove 2 to complete the installation of the high-efficiency filter cartridge, making it easier to install and remove the high-efficiency filter cartridge.

[0030] 2. The rotation of the rotating plate is limited by a single fixing bolt, thereby simultaneously limiting the movement of the clamping plate and the threaded sleeve. As long as the fixing bolt does not disengage from the second thread groove, the rotating plate cannot rotate. This reduces the number of steps for tightening the fixing bolt and makes the sealing block and the high-efficiency filter cartridge more firmly fixed and less likely to loosen.

[0031] 3. By taking out the blocking block, the blocking block drives the fixing ring to move, the fixing ring pulls the fixing buckle to move, the fixing buckle drives the connecting rope to move, and the connecting rope pulls the high-efficiency filter cartridge to move, so that the high-efficiency filter cartridge is pulled out of the air filter housing, and then the fixing buckle is removed from the fixing ring to complete the disassembly of the high-efficiency filter cartridge, which is convenient for pulling out the high-efficiency filter cartridge simultaneously while removing the blocking block, making it convenient to remove the high-efficiency filter cartridge from the air filter housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0033] Figure 2 It is a schematic diagram of the overall internal structure of the utility model.

[0034] Figure 3 It is a schematic diagram of the internal structure of the utility model as a whole viewed from above.

[0035] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0036] Description of Reference Numerals

[0037] 1. Air filter housing; 2. Intake pipe; 3. Air compressor connecting pipe; 4. Plugging block; 5. Sealing ring; 6. Tightening structure; 601. Rotating plate; 602. Fixed bolt; 603. Rotating rod; 604. First rotating gear; 605. First threaded rod; 606. Limiting rod; 607. Fixed ring; 611. Tightening block; 612. First sliding groove; 613. First threaded groove; 7. Supporting structure; 701. Limiting ring; 702. Supporting rod; 703. Supporting block; 8. Air filtering structure; 801. Top plate; 802. High - efficiency filter cartridge; 803. Tightening ring; 804. Connecting rope; 805. Fixed buckle; 806. Tightening groove; 9. Circular cavity; 10. Second sliding groove; 11. Clamping and fixing structure; 1101. Second rotating gear; 1102. Rotating block; 1103. Second threaded rod; 1104. Threaded sleeve; 12. Insertion slot; 13. Second threaded groove; 14. Clamping slot; 15. Circular through - slot. Detailed implementation manners

[0038] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments.

[0039] As Figures 1-4 shown, the high - efficiency air filter structure of the air compressor includes an air filter housing 1. A plugging block 4 is arranged at the top of the air filter housing 1, and further includes:

[0040] A supporting structure 7, which is arranged inside;

[0041] An air filtering structure 8, which is arranged inside the supporting structure 7;

[0042] A tightening structure 6, which is arranged on the plugging block 4;

[0043] A clamping and fixing structure 11, which is arranged on both sides of the tightening structure 6. The tightening structure 6 rotates synchronously to drive the clamping and fixing structure 11 to move and clamp.

[0044] A side wall at the top of the air filter housing 1 is fixedly connected with an intake pipe 2. A circular through - slot 15 is formed in a side wall at the top of the air filter housing 1. A plugging block 4 is clamped in the circular through - slot 15. A bottom of the air filter housing 1 is fixedly connected with an air compressor connecting pipe 3.

[0045] The air compressor is connected through the air compressor connecting pipe 3. Air enters the air filter housing 1 through the intake pipe 2. After the high - efficiency filter cartridge 802 filters the air, it is introduced into the air compressor through the air compressor connecting pipe 3.

[0046] A circular cavity 9 is provided in the side wall of the blocking block 4, and square sliding grooves 10 are provided on both sides of the circular cavity 9. A plug-in groove 12 is provided at the other end of the sliding groove 10, and the circular cavity 9, the sliding groove 10 and the plug-in groove 12 are interconnected.

[0047] The top side wall of the blocking block 4 is provided with thread grooves 13 at equal distances.

[0048] The clamping structure 6 includes a rotating plate 601, a fixing bolt 602, a rotating rod 603, a rotating gear 604, a threaded rod 605, a limiting rod 606 and a fixing ring 607. The rotating rod 603 is rotatably connected to the inner wall of the circular cavity 9. The rotating gear 604 is fixedly connected to the side wall of the rotating rod 603. The top of the rotating rod 603 is fixedly connected to the rotating plate 601. The side wall of the rotating plate 601 is threadedly connected with a fixing bolt 602. The fixing bolt 602 and the thread groove 13 cooperate with each other. The bottom of the rotating rod 603 is fixedly connected to the threaded rod. The threaded rod 605 extends downward from the blocking block 4. The limiting rod 606 and the fixing ring 607 are fixedly connected to the bottom side wall of the blocking block 4.

[0049] The rotating plate 601 is rotated, and the rotating plate 601 drives the rotating rod 603 to rotate, and the rotating rod 603 drives the rotating gear 1 604 and the threaded rod 1 605 to rotate.

[0050] The clamping structure 6 includes a clamping block 611, a sliding groove 612 and a threaded groove 613. The side wall of the clamping block 611 is provided with a threaded groove 613 and two sliding grooves 612. The two sliding grooves 612 are located on both sides of the threaded groove 613. A threaded rod is connected to the inner thread of the threaded groove 613. A limiting rod 606 is slidably connected to the inner surface of the sliding groove 612.

[0051] The threaded rod 605 rotates in the threaded groove 613 to drive the pressing block 611 to rise and disengage from the pressing groove 806 . The limiting rod 606 slides in the sliding groove 612 to limit the rotation of the pressing block 611 .

[0052] The clamping fixing structure 11 includes a rotating gear 1101, a rotating block 1102, a threaded rod 1103 and a threaded sleeve 1104. The rotating block 1102 is rotatably connected to the side wall of the blocking block 4. One end of the rotating block 1102 is fixedly connected to the rotating gear 1101. The rotating gear 1101 and the rotating gear 1 604 are meshed with each other. The other end of the rotating block 1102 is fixedly connected to the threaded rod 1103. The threaded rod 1103 is threadedly connected with a square threaded sleeve 1104. The threaded sleeve 1104 is slidably connected in the sliding groove 10.

[0053] The rotation of the first rotating gear 604 drives the rotation of the second rotating gear 1101. The rotation of the second rotating gear 1101 drives the rotation of the rotating block 1102. The rotation of the rotating block 1102 drives the rotation of the second threaded rod 1103. The rotation of the second threaded rod 1103 drives the movement of the threaded sleeve 1104.

[0054] The support structure 7 includes a limiting ring 701, a support rod 702, and a support block 703. The limiting ring 701 is fixedly connected to the inner bottom wall of the air filter housing 1. Two support rods 702 are fixedly connected to the top side wall of the limiting ring 701. The top of the support rod 702 extends out of the top side wall of the air filter housing 1. Support blocks 703 are fixedly connected to the opposite side walls of the support rod 702 at equal distances.

[0055] The limiting ring 701 can limit the movement of the pressing ring 803.

[0056] A clamping groove 14 is formed on the side wall of the support rod 702. The clamping groove 14 cooperates with the threaded sleeve 1104, and the support rod 702 cooperates with the insertion groove 12.

[0057] The air filtering structure 8 includes a top plate 801, a high-efficiency filter cylinder 802, a pressing ring 803, a connecting rope 804, a fixing buckle 805, and a pressing groove 806. The top of the high-efficiency filter cylinder 802 is fixedly connected to the top plate 801. A pressing groove 806 is formed on the side wall of the top plate 801. Two connecting ropes 804 are fixedly connected to the side wall of the top plate 801. The other end of the connecting rope 804 is fixedly connected to the fixing buckle 805. The bottom of the high-efficiency filter cylinder 802 is fixedly connected to the pressing ring 803. The pressing ring 803 is slidably sleeved in the limiting ring 701.

[0058] The blocking block 4 drives the movement of the fixing ring 607. The fixing ring 607 pulls the fixing buckle 805 to move. The fixing buckle 805 drives the connecting rope 804 to move. The connecting rope 804 pulls the high-efficiency filter cylinder 802 to move, so that the high-efficiency filter cylinder 802 is pulled out of the air filter housing 1. Then, the fixing buckle 805 is removed from the fixing ring 607, and the disassembly of the high-efficiency filter cylinder 802 can be completed.

[0059] When the utility model is in use, it is connected to an air compressor through the air compressor connecting pipe 3. Air enters the air filter housing 1 through the air inlet pipe 2. After being filtered by the high-efficiency filter cylinder 802, the air is introduced into the air compressor through the air compressor connecting pipe 3;

[0060] When disassembling the high-efficiency filter cartridge 802, the fixing bolt 602 can be removed, and the rotating plate 601 is rotated. The rotating plate 601 drives the rotating rod 603 to rotate, and the rotating rod 603 drives the first rotating gear 604 and the first threaded rod 605 to rotate. The first threaded rod 605 rotates in the first threaded groove 613 to drive the pressing block 611 to rise and disengage from the pressing groove 806. The limiting rod 606 slides in the first sliding groove 612 to limit the rotation of the pressing block 611. The first rotating gear 604 rotates to drive the second rotating gear 1101 to rotate, and the second rotating gear 1101 drives the rotating block 1102 to rotate. The rotating block 1102 drives the second threaded rod 1103 to rotate, and the second threaded rod 1103 rotates to drive the threaded sleeve 1104 to move, so that the threaded sleeve 1104 leaves the clamping groove 14, and the blocking block 4 is no longer restricted. The blocking block 4 is taken out, and the blocking block 4 drives the fixing ring 607 to move. The fixing ring 607 pulls the fixing buckle 805 to move, and the fixing buckle 805 drives the connecting rope 804 to move. The connecting rope 804 pulls the high-efficiency filter cartridge 802 to move, so that the high-efficiency filter cartridge 802 is pulled out of the air filter housing 1. Then, the fixing buckle 805 is removed from the fixing ring 607, and the disassembly of the high-efficiency filter cartridge 802 can be completed;

[0061] Preferably, while the blocking block 4 is taken out, the high-efficiency filter cartridge 802 can be pulled out synchronously, so that the high-efficiency filter cartridge 802 is convenient to take out. During installation, the high-efficiency filter cartridge 802 is placed between the support blocks 703, and then the blocking block 4 is clamped in the circular through groove 15, so that the top of the support rod 702 is inserted into the insertion groove 12. The rotating plate 601 is rotated in the reverse direction, and the rotating plate 601 rotates to drive the pressing block 611 and the threaded sleeve 1104 to move synchronously. The threaded sleeve 1104 is clamped into the clamping groove 14, so that the blocking block 4 is fixed. The pressing block 611 abuts against the top plate 801, so that the high-efficiency filter cartridge 802 is tightly fixed in the air filter housing 1. Then, the fixing bolt 602 is tightened into the corresponding second threaded groove 13, and the rotation of the rotating plate 601 is restricted by the fixing bolt 602, so as to restrict the movement of the pressing plate and the threaded sleeve 1104, and make the fixing of the blocking block 4 and the high-efficiency filter cartridge 802 relatively firm.

[0062] The present invention is not limited to the above embodiments. No matter any changes are made in its shape or structure, they all fall within the protection scope of the present invention. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An air compressor high efficiency air filter structure, comprising an air filter housing (1), wherein a sealing block (4) is arranged on the top of the air filter housing (1), characterized in that: Also includes: a supporting structure (7), wherein the supporting structure (7) is arranged inside; An air filtering structure (8), wherein the air filtering structure (8) is arranged in the supporting structure (7); A tightening structure (6), wherein the tightening structure (6) is arranged on the blocking block (4); A clamping and fixing structure (11), wherein the clamping and fixing structure (11) is arranged on both sides of the abutting structure (6), and the abutting structure (6) rotates to synchronously drive the clamping and fixing structure (11) to move and clamp.

2. The air compressor high efficiency air filter structure according to claim 1, characterized in that: An air intake pipe (2) is fixedly connected to the top side wall of the air filter housing (1), a circular through groove (15) is provided on the top side wall of the air filter housing (1), a sealing block (4) is clamped in the circular through groove (15), and an air compressor connecting pipe (3) is fixedly connected to the bottom of the air filter housing (1).

3. The air compressor high efficiency air filter structure according to claim 1, characterized in that: A circular cavity (9) is provided in the side wall of the blocking block (4), two square sliding grooves (10) are provided on both sides of the circular cavity (9), a plug-in groove (12) is provided at the other end of the sliding groove (10), and the circular cavity (9), the sliding groove (10) and the plug-in groove (12) are interconnected.

4. The air compressor high efficiency air filter structure according to claim 1, characterized in that: Two thread grooves (13) are provided at equal distances on the top side wall of the blocking block (4).

5. The air compressor high efficiency air filter structure according to claim 1, characterized in that: The tightening structure (6) comprises a rotating plate (601), a fixing bolt (602), a rotating rod (603), a rotating gear one (604), a threaded rod one (605), a limiting rod (606) and a fixing ring (607); the rotating rod (603) is rotatably connected to the inner side wall of the circular cavity (9); the rotating gear one (604) is fixedly connected to the side wall of the rotating rod (603); the top of the rotating rod (603) is fixedly connected to the rotating plate (601); the side wall of the rotating plate (601) is threadedly connected with a fixing bolt (602); the fixing bolt (602) and the threaded groove two (13) cooperate with each other; the bottom of the rotating rod (603) is fixedly connected to the threaded rod; the threaded rod one (605) extends downwardly out of the blocking block (4); the limiting rod (606) and the fixing ring (607) are fixedly connected to the bottom side wall of the blocking block (4).

6. The air compressor high efficiency air filter structure according to claim 5, characterized in that: The clamping structure (6) comprises a clamping block (611), a sliding groove (612) and a threaded groove (613). The side wall of the clamping block (611) is provided with a threaded groove (613) and two sliding grooves (612). The two sliding grooves (612) are located on both sides of the threaded groove (613). A threaded rod is connected to the inner thread of the threaded groove (613). A limiting rod (606) is slidably connected to the inner surface of the sliding groove (612).

7. The air compressor high efficiency air filter structure according to claim 1, characterized in that: The clamping fixing structure (11) comprises a second rotating gear (1101), a rotating block (1102), a second threaded rod (1103) and a threaded sleeve (1104); the rotating block (1102) is rotatably connected to the side wall of the blocking block (4); one end of the rotating block (1102) is fixedly connected to the second rotating gear (1101); the second rotating gear (1101) and the first rotating gear (604) are meshed with each other; the other end of the first rotating block (1102) is fixedly connected to the second threaded rod (1103); a square threaded sleeve (1104) is threadedly connected to the second threaded rod (1103); and the threaded sleeve (1104) is slidably connected in the second sliding groove (10).

8. The air compressor high efficiency air filter structure according to claim 1, characterized in that: The support structure (7) comprises a limiting ring (701), a supporting rod (702) and a supporting block (703); the limiting ring (701) is fixedly connected to the bottom inner wall of the air filter housing (1); two supporting rods (702) are fixedly connected to the top side wall of the limiting ring (701); the top of the supporting rod (702) extends out of the top side wall of the air filter housing (1); and the side walls on opposite sides of the supporting rod (702) are fixedly connected with supporting blocks (703) at equal distances.

9. The air compressor high efficiency air filter structure according to claim 8, characterized in that: A clamping groove (14) is provided on the side wall of the support rod (702), the clamping groove (14) and the threaded sleeve (1104) cooperate with each other, and the support rod (702) and the plug-in groove (12) cooperate with each other.

10. The air compressor high efficiency air filter structure according to claim 1, characterized in that: The air filtering structure (8) comprises a top plate (801), a high-efficiency filter cartridge (802), a clamping ring (803), a connecting rope (804), a fixing buckle (805) and a clamping groove (806); the top of the high-efficiency filter cartridge (802) is fixedly connected to the top plate (801); a clamping groove (806) is provided on the side wall of the top plate (801); two connecting ropes (804) are fixedly connected to the side wall of the top plate (801); the other end of the connecting rope (804) is fixedly connected to the fixing buckle (805); the bottom of the high-efficiency filter cartridge (802) is fixedly connected to the clamping ring (803); and the clamping ring (803) is slidably sleeved in the limiting ring (701).

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