Air compressor capable of adjusting air inflow

Abstract

The invention discloses an air compressor capable of adjusting air inflow, and relates to the technical field of air compressors, the air compressor comprises a machine body, moving wheels are mounted at the bottom end of the machine body, an air inlet pipe is fixedly connected to the top end of the machine body, and an air inlet is fixedly connected to one end of the air inlet pipe; air entering the air inlet is filtered through the filtering mechanism, and the amount of the air entering the air inlet is adjusted through the adjusting mechanism. By arranging the adjusting mechanism, the air inlet amount of the air inlet pipe can be conveniently adjusted, in addition, when the air inlet is not closed, the filter plate is prevented from loosening, external air is prevented from directly entering the machine body through the air inlet pipe, the air inlet amount can be adjusted, and meanwhile stable filtering air inlet operation can be achieved in cooperation with the filtering mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to an air compressor capable of adjusting air intake volume. Background Art

[0002] An air compressor is a device that converts mechanical energy into gas pressure energy. When using an air compressor, the air intake volume needs to be adjusted in certain situations, such as when production needs change, during equipment maintenance, or when there is a need to control system pressure. There are two common methods for adjusting the air intake volume. One is to control the air intake volume by changing the speed of the compressor. This method is suitable for air compressors driven by internal combustion engines or steam turbines, but if an electric motor is used, a frequency converter is required. Although this method can ensure the continuity of air consumption, it may have a negative impact on the compressor components, such as valve flutter, large component wear, and increased vibration. The second method is to adjust the intake valve. This method can achieve both coarse and fine adjustments, and can achieve continuous adjustment, which is more universal.

[0003] In addition, when the air compressor is in use, air enters the machine body through the intake pipe. In order to prevent debris from entering the machine body along with the intake air flow through the intake pipe, a filter plate is usually provided at the intake end of the intake pipe. However, when the filter plate is replaced, debris in the outside air can directly enter the machine body through the intake pipe.

[0004] In view of this, in order to prevent foreign matter in the air from entering the air intake pipe when the filter plate is replaced and to adjust the air intake amount, an air compressor capable of adjusting the air intake amount is provided. Summary of the invention

[0005] The purpose of the present invention is to provide an air compressor capable of adjusting the air intake volume in order to prevent foreign matter in the air from entering the air intake pipe when the filter plate is replaced and to adjust the air intake volume.

[0006] To achieve the above object, the present invention provides the following technical solution: an air compressor capable of adjusting the air intake volume, comprising a body, a moving wheel is installed at the bottom end of the body, an air intake pipe is fixedly connected to the top end of the body, an air inlet is fixedly connected to one end of the air inlet, the air entering the air inlet is filtered by a filtering mechanism, and the air volume entering the air inlet is adjusted by an adjusting mechanism; The filter mechanism includes a filter shell, which is fixedly connected to one end of the air inlet, and the inner wall of the filter shell is symmetrically fixedly connected to a limited seat up and down, the inner cavity of the filter shell is located at one end of the limited seat and a filter plate is installed, the top and bottom ends of the filter plate are provided with fixing grooves, the interior of the filter shell is slidably connected to a fixing block extending to the inner cavity of the filter shell, a first spring is connected between the fixing block and the filter shell, the interior of the filter shell is slidably connected to an extrusion block on one side of the fixing block, the outer wall of the filter shell is rotatably connected to a first spur gear, one end of the first spur gear is fixedly connected to a first threaded rod, and the first threaded rod extends to the interior of the extrusion block.

[0007] As a further solution of the present invention: the filtering mechanism also includes a gear ring, which is rotatably connected to the outer wall of the filter shell and located on the outer wall of the first spur gear, and one end of the two limit seats close to each other is rotatably connected with a baffle, a torsion spring is connected between the baffle and the limit seat, a push rod in contact with the baffle is slidably connected inside the limit seat, a second spring is connected between the push rod and the limit seat, and an extrusion rod is slidably connected inside the limit seat on one side of the push rod, and the extrusion rod extends out of the limit seat.

[0008] As a further solution of the present invention: the adjustment mechanism includes a fan-shaped adjustment plate, the adjustment plate is circumferentially distributed on the inner wall of the air inlet, the outer wall of the adjustment plate is fixedly connected to a connecting shaft, the connecting shaft is rotatably connected to the air inlet, one end of the connecting shaft is fixedly connected to a bevel gear, the interior of the air inlet is located at the outer wall of the bevel gear and is rotatably connected to a rotating ring, the interior of the air inlet is located at the top of the rotating ring and is rotatably connected to a second spur gear, the inner wall of the second spur gear is fixedly connected to a second threaded rod, one end of the second threaded rod is fixedly connected to a rotating block, and the outer wall of the other end of the second threaded rod is slidably connected to a push rod The filter housing is provided with a movable frame, and a third spring is connected between the movable frame and the filter housing. The top and bottom ends of the movable frame are fixedly connected with a connecting frame. The outer wall of the fixed block facing the filter plate is provided with a cross-shaped positioning groove, and the positioning groove includes a transverse groove part and a vertical groove part, and the vertical groove part passes through the fixed block; one end of the connecting frame slides through the vertical groove part and is fixedly connected with a positioning block, and the positioning block can be inserted into the transverse groove of the positioning groove; a receiving groove matching the positioning block is provided on the filter housing in contact with the transverse groove part.

[0009] As a further solution of the present invention: the inner wall of the filter shell is fitted with the outer wall of the filter plate, and the outer wall of one end of the fixing block is fitted with the inner wall of the fixing groove.

[0010] As a further solution of the present invention: the outer wall of the gear ring is provided with first gear teeth, the first gear teeth are meshed with the first spur gear, and the outer wall of the filter housing is located on the inner wall of the gear ring and fixedly connected with a plurality of support columns.

[0011] As a further solution of the present invention: a first threaded hole is formed on an outer wall of the extrusion block, the first threaded hole matches the first threaded rod, and a first inclined surface is provided on one side of the fixing block, the first inclined surface contacts the extrusion block.

[0012] As a further solution of the present invention: a second inclined surface is provided on one side of the top of the push rod, and the extrusion rod is in contact with the second inclined surface.

[0013] As a further solution of the present invention: the inner wall of the rotating ring is provided with second gear teeth, the second gear teeth are meshed with the bevel gear, and the outer wall of the rotating ring is provided with tooth grooves, the tooth grooves are meshed with the second spur gear.

[0014] As a further solution of the present invention: a second threaded hole is formed at one end of the pushing block, and the second threaded hole matches the second threaded rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a filtering mechanism, the rotation of the gear ring drives the first spur gear to rotate, and the rotation of the first spur gear drives the extrusion block to move, and the displacement of the extrusion block pushes the fixed block to move, and the fixed block moves out of the fixed groove, canceling the fixation of the filter plate, so that it is convenient to filter the air entering the machine body through the filter plate and facilitate replacement and maintenance operations; when the filter plate is removed, the baffle rotates to close one end of the air inlet, so that when the filter plate is replaced, one end of the air inlet can be blocked to prevent debris in the air from entering the machine body.

[0016] 2. By setting up the adjustment mechanism, the rotation of the rotating block drives the second threaded rod to rotate, the rotation of the second threaded rod drives the second spur gear to rotate, the rotation of the second spur gear drives the rotating ring to rotate, the rotation of the rotating ring drives the bevel gear to rotate, the rotation of the bevel gear drives the connecting shaft to rotate, the rotation of the connecting shaft drives the adjusting plate to rotate, the adjusting plate rotates to adjust the opening size of the air inlet, which is convenient for adjusting the air intake volume of the intake pipe. At the same time, when the air inlet is not closed, the filter plate is prevented from loosening, and the outside air is prevented from directly entering the machine body through the intake pipe. While realizing the air intake volume adjustment, it can also cooperate with the filtering mechanism to achieve stable filtering and air intake operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2It is a schematic diagram of the structure of the filter housing of the present invention; Figure 3 It is a schematic diagram of the installation of the filter plate of the present invention; Figure 4 It is a schematic diagram of the installation structure of the extrusion block and the fixing block of the present invention; Figure 5 It is a schematic diagram of the internal structure of the limit seat of the present invention; Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle; Figure 7 It is a schematic diagram of the internal structure of the filter housing of the present invention; Figure 8 It is a schematic diagram of the installation structure of the adjustment plate of the present invention; Fig. 9 It is a structural schematic diagram of the positioning block of the present invention.

[0018] In the figure: 1. body; 2. moving wheel; 3. air inlet; 4. air inlet; 5. filtering mechanism; 501. filter shell; 502. limit seat; 503. filter plate; 504. fixing groove; 505. fixing block; 506. first spring; 507. extrusion block; 508. first threaded rod; 509. first spur gear; 510. gear ring; 511. baffle; 512. torsion spring; 513. push rod; 514. second spring; 515. extrusion rod; 6. adjusting mechanism; 601. adjusting plate; 602. connecting shaft; 603. bevel gear; 604. rotating ring; 605. second spur gear; 606. second threaded rod; 607. rotating block; 608. push block; 609. movable frame; 610. third spring; 611. connecting frame; 612. positioning block; 613. positioning groove; 7. supporting column. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0021] See also Figures 1 to 9 In an embodiment of the present invention, an air compressor capable of adjusting the air intake volume includes a body 1, a moving wheel 2 is installed at the bottom end of the body 1, an air intake pipe 3 is fixedly connected to the top end of the body 1, one end of the air intake pipe 3 is fixedly connected to an air inlet 4, the air entering the air inlet 4 is filtered by a filtering mechanism 5, and the amount of air entering the air inlet 4 is adjusted by an adjusting mechanism 6.

[0022] The filter mechanism 5 includes a filter shell 501, which is fixedly connected to one end of the air inlet 4. The inner wall of the filter shell 501 is symmetrically fixedly connected to the limit seat 502. The inner cavity of the filter shell 501 is located at one end of the limit seat 502 and a filter plate 503 is installed. The top and bottom ends of the filter plate 503 are provided with fixed grooves 504. The interior of the filter shell 501 is slidably connected to a fixed block 505 extending to the inner cavity of the filter shell 501. A first spring 506 is connected between the fixed block 505 and the filter shell 501. The interior of the filter shell 501 is located on one side of the fixed block 505 and is slidably connected to an extrusion block 507. The outer wall of the filter shell 501 is rotatably connected to a first spur gear 509. One end of the first spur gear 509 is fixed to the filter shell 501. A first threaded rod 508 is fixedly connected, and the first threaded rod 508 extends to the interior of the extrusion block 507. The filtering mechanism 5 also includes a toothed ring 510, which is rotatably connected to the outer wall of the filter shell 501 and is located on the outer wall of the first spur gear 509. The ends of the two limit seats 502 that are close to each other are rotatably connected with a baffle 511, and a torsion spring 512 is connected between the baffle 511 and the limit seat 502. The interior of the limit seat 502 is slidably connected with a push rod 513 that contacts the baffle 511, and a second spring 514 is connected between the push rod 513 and the limit seat 502. The interior of the limit seat 502 is located on one side of the push rod 513 and is slidably connected with an extrusion rod 515, and the extrusion rod 515 extends out of the limit seat 502.

[0023] In this embodiment, the air entering the air inlet 4 is filtered through the filter plate 503. When installing the filter plate 503, the filter plate 503 is placed in the filter shell 501 and contacts the limit seat 502. At this time, the fixing block 505 is engaged into the fixing groove 504 by the elastic force of the first spring 506 to fix the filter plate 503. When removing the filter plate 503, the gear ring 510 is rotated, and the gear ring 510 rotates to drive the first spur gear 509 to rotate, and the first spur gear 509 rotates to drive the first threaded rod 508 to rotate, and the first threaded rod 508 rotates to drive the extrusion block 507 to move, and the displacement of the extrusion block 507 pushes the fixing block 505 to move, and the fixing block 505 moves out of the fixing groove 504, canceling the fixation of the filter plate 503.

[0024] When the filter plate 503 is removed, the push rod 513 is displaced by the elastic force of the second spring 514, and the push rod 513 moves out of the limit seat 502 to push the baffle 511 to rotate, causing deformation of the torsion spring 512, and the baffle 511 rotates to close one end of the air inlet 4. At the same time, the push rod 513 moves to push one end of the extrusion rod 515 to move out of the limit seat 502; when the filter plate 503 is installed, the filter plate 503 moves to contact the limit seat 502, and the filter plate 503 is in contact with the extrusion rod 515. The push-pushing rod 515 is displaced, and the displacement of the squeezing rod 515 pushes the pushing rod 513 to be displaced. The pushing rod 513 is displaced into the limiting seat 502 and separated from the baffle 511. The baffle 511 is rotated and reset by the torsion force of the torsion spring 512 to open one end of the air inlet 4. This design facilitates filtering the air entering the body 1 through the filter plate 503, and when the filter plate 503 is replaced, one end of the air inlet 4 is blocked to prevent debris in the air from entering the body 1.

[0025] Please refer to Figures 7 to 9 The adjusting mechanism 6 includes a fan-shaped adjusting plate 601, and the adjusting plates 601 are circumferentially distributed on the inner wall of the air inlet 4. The outer wall of the adjusting plate 601 is fixedly connected with a connecting shaft 602, and the connecting shaft 602 is rotatably connected to the air inlet 4. One end of the connecting shaft 602 is fixedly connected with a bevel gear 603, and the inner wall of the air inlet 4 is located at the outer wall of the bevel gear 603 and is rotatably connected with a rotating ring 604. The inner wall of the air inlet 4 is located at the top of the rotating ring 604 and is rotatably connected with a second spur gear 605. The inner wall of the second spur gear 605 is fixedly connected with a second threaded rod 606, and one end of the second threaded rod 606 is fixedly connected with a rotating block 607. The outer wall of the other end of the second threaded rod 606 is slidably connected with a pushing block 608, and the pushing block 608 slides Connected to the inside of the air inlet 4, the inside of the filter shell 501 is located at one end of the push block 608 and is slidably connected with a movable frame 609, a third spring 610 is connected between the movable frame 609 and the filter shell 501, the top and bottom ends of the movable frame 609 are fixedly connected with a connecting frame 611, and the outer wall of the fixed block 505 facing the filter plate 503 is provided with a cross-shaped positioning groove 613, the positioning groove 613 includes a horizontal groove part and a vertical groove part, and the vertical groove part passes through the fixed block 505; one end of the connecting frame 611 slides through the vertical groove part and is fixedly connected with a positioning block 612, and the positioning block 612 can be inserted into the horizontal groove of the positioning groove 613; a receiving groove matching the positioning block 612 is provided on the filter shell 501 that contacts the horizontal groove part.

[0026] In this embodiment: air enters the air intake pipe 3 through the air inlet 4 and then enters the body 1. When the air intake amount is adjusted, the rotating block 607 is rotated. The rotating block 607 rotates to drive the second threaded rod 606 to rotate. The second threaded rod 606 rotates to drive the second spur gear 605 to rotate. The second spur gear 605 rotates to drive the rotating ring 604 to rotate. The rotating ring 604 rotates to drive the bevel gear 603 to rotate. The bevel gear 603 rotates to drive the connecting shaft 602 to rotate. The connecting shaft 602 rotates to drive the adjusting plate 601 to rotate. The adjusting plate 601 rotates to adjust the opening size of the air inlet 4, thereby adjusting the air intake amount of the air inlet 4.

[0027] When the air inlet 4 is not closed, the positioning block 612 is engaged in the transverse groove part of the positioning groove 613 to prevent the fixed block 505 from moving and causing the filter plate 503 to loosen; when the adjusting plate 601 rotates to close the air inlet 4, the second threaded rod 606 rotates to drive the pushing block 608 to move, and the pushing block 608 moves and contacts with the movable frame 609, pushing the movable frame 609 to move, squeezing the third spring 610, and the movable frame 609 moves and drives the connecting frame 611 to move, and the connecting frame 611 moves and drives the positioning block 61 2 is displaced, the positioning block 612 is displaced out of the positioning groove 613 and enters the containing groove on the filter housing 501, the fixation of the fixing block 505 is cancelled, and the fixing block 505 can be relatively displaced upward relative to the cross arm part of the connecting frame 611 (under the extrusion force of the extrusion block 507), so that the filter plate 503 can be replaced, and the air intake amount of the air intake pipe 3 can be adjusted. At the same time, when the air inlet 4 is not closed, the filter plate 503 is prevented from being loosened, and the outside air is prevented from directly entering the body 1 through the air intake pipe 3.

[0028] Please refer to Figures 2 to 3 The inner wall of the filter shell 501 fits with the outer wall of the filter plate 503 , and the outer wall of one end of the fixing block 505 fits with the inner wall of the fixing groove 504 .

[0029] In this embodiment, the filter plate 503 is placed into the filter housing 501 and contacts the limiting seat 502 . At this time, the fixing block 505 is engaged into the fixing groove 504 by the elastic force of the first spring 506 , thereby fixing the filter plate 503 .

[0030] Please refer to Figure 3 to Figure 4 The outer wall of the gear ring 510 is provided with first gear teeth, which are meshed with the first spur gear 509 . The outer wall of the filter housing 501 is fixedly connected with a plurality of support columns 7 , and the support columns 7 can slidably support the inner wall of the gear ring 510 .

[0031] In this embodiment: the support column 7 is used to limit the rotation of the gear ring 510. When the gear ring 510 is rotated, the gear ring 510 drives the first spur gear 509 to rotate, and the first spur gear 509 drives the first threaded rod 508 to rotate.

[0032] Please refer to Figure 3 to Figure 4 A first threaded hole is formed on the outer wall of the extrusion block 507 , and the first threaded hole matches the first threaded rod 508 . A first inclined surface is formed on one side of the fixing block 505 , and the first inclined surface contacts the extrusion block 507 .

[0033] In this embodiment: the first spur gear 509 rotates to drive the first threaded rod 508 to rotate, the first threaded rod 508 rotates to drive the extrusion block 507 to move, the extrusion block 507 moves to push the fixed block 505 to move, the fixed block 505 moves out of the fixed groove 504, and the filter plate 503 is no longer fixed.

[0034] Please refer to Figures 2 to 5 A second inclined surface is provided on one side of the top of the push rod 513, and the squeezing rod 515 contacts the second inclined surface.

[0035] In this embodiment, when the filter plate 503 is installed, the filter plate 503 moves to contact the limiting seat 502, the filter plate 503 contacts the extrusion rod 515 to push the extrusion rod 515 to move, and the displacement of the extrusion rod 515 pushes the push rod 513 to move.

[0036] Please refer to Figures 7 to 9 The inner wall of the rotating ring 604 is provided with second gear teeth, which mesh with the bevel gear 603 . The outer wall of the rotating ring 604 is provided with tooth grooves, which mesh with the second spur gear 605 .

[0037] In this embodiment: rotate the rotating block 607, the rotating block 607 drives the second threaded rod 606 to rotate, the second threaded rod 606 drives the second spur gear 605 to rotate, the second spur gear 605 drives the rotating ring 604 to rotate, the rotating ring 604 drives the bevel gear 603 to rotate, the bevel gear 603 drives the connecting shaft 602 to rotate, and the connecting shaft 602 drives the adjusting plate 601 to rotate.

[0038] Please refer to Figures 7 to 9 A second threaded hole is formed at one end of the push block 608 , and the second threaded hole matches the second threaded rod 606 .

[0039] In this embodiment, the second threaded rod 606 rotates to drive the push block 608 to move, and the push block 608 moves to contact the movable frame 609, pushing the movable frame 609 to move.

[0040] Please refer to Figures 7 to 9 The inner wall of the positioning groove 613 fits with the outer wall of the positioning block 612 .

[0041] In this embodiment: when the adjustment plate 601 rotates to close the air inlet 4, the second threaded rod 606 rotates to drive the pushing block 608 to move, and the pushing block 608 moves to contact the movable frame 609, pushing the movable frame 609 to move, causing the third spring 610 to be squeezed, and the movable frame 609 moves to drive the connecting frame 611 to move, and the connecting frame 611 moves to drive the positioning block 612 to move, and the positioning block 612 moves out of the positioning groove 613 and enters the containing groove on the filter shell 501, canceling the fixation of the fixing block 505.

[0042] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air compressor capable of adjusting the air intake volume, comprising a body (1), a moving wheel (2) being mounted at the bottom end of the body (1), an air intake pipe (3) being fixedly connected to the top end of the body (1), and an air inlet (4) being fixedly connected to one end of the air intake pipe (3), wherein: The air entering the air inlet (4) is filtered by a filtering mechanism (5), and the amount of air entering the air inlet (4) is adjusted by an adjusting mechanism (6); The filter mechanism (5) comprises a filter shell (501), the filter shell (501) is fixedly connected to one end of the air inlet (4), the inner wall of the filter shell (501) is symmetrically fixedly connected to a limit seat (502) in the upper and lower parts, the inner cavity of the filter shell (501) is located at one end of the limit seat (502) and is provided with a filter plate (503), the top and bottom ends of the filter plate (503) are provided with fixing grooves (504), the interior of the filter shell (501) is slidably connected to a filter plate (503) extending to the filter shell (501), A fixing block (505) is provided in the inner cavity, a first spring (506) is connected between the fixing block (505) and the filter housing (501), an extrusion block (507) is slidably connected to one side of the fixing block (505) inside the filter housing (501), a first spur gear (509) is rotatably connected to the outer wall of the filter housing (501), a first threaded rod (508) is fixedly connected to one end of the first spur gear (509), and the first threaded rod (508) extends to the inside of the extrusion block (507).

2. An air compressor capable of adjusting air intake volume according to claim 1, characterized in that: The filtering mechanism (5) further comprises a toothed ring (510), the toothed ring (510) being rotatably connected to the outer wall of the filtering shell (501) and being located on the outer wall of the first spur gear (509); a baffle (511) being rotatably connected to one end of the two limiting seats (502) close to each other; a torsion spring (512) being connected between the baffle (511) and the limiting seat (502); a pushing rod (513) in contact with the baffle (511) being slidably connected inside the limiting seat (502); a second spring (514) being connected between the pushing rod (513) and the limiting seat (502); and an extrusion rod (515) being slidably connected inside the limiting seat (502) and located on one side of the pushing rod (513); the extrusion rod (515) extending out of the limiting seat (502).

3. An air compressor capable of adjusting air intake volume according to claim 2, characterized in that: The regulating mechanism (6) comprises a fan-shaped regulating plate (601), the regulating plates (601) are circumferentially distributed on the inner wall of the air inlet (4), the outer wall of the regulating plate (601) is fixedly connected to a connecting shaft (602), the connecting shaft (602) is rotatably connected to the air inlet (4), one end of the connecting shaft (602) is fixedly connected to a bevel gear (603), the interior of the air inlet (4) is located on the outer wall of the bevel gear (603) and is rotatably connected to a rotating ring (604), the interior of the air inlet (4) is located on the top of the rotating ring (604) and is rotatably connected to a second spur gear (605), the inner wall of the second spur gear (605) is fixedly connected to a second threaded rod (606), one end of the second threaded rod (606) is fixedly connected to a rotating block (607), the outer wall of the other end of the second threaded rod (606) is slidably connected to a pushing block (608), the pushing block (608) is slidably connected to the inside of the air inlet (4); the inside of the filter shell (501) is slidably connected to a movable frame (609) at one end of the pushing block (608); a third spring (610) is connected between the movable frame (609) and the filter shell (501); the top and bottom ends of the movable frame (609) are fixedly connected to a connecting frame (611); the outer wall of the fixed block (505) facing the filter plate (503) is provided with a cross-shaped positioning groove (613); the positioning groove (613) includes a horizontal groove part and a vertical groove part, and the vertical groove part passes through the fixed block (505); one end of the connecting frame (611) slides through the vertical groove part and is fixedly connected to a positioning block (612); the positioning block (612) can be inserted into the horizontal groove of the positioning groove (613); a receiving groove matching the positioning block (612) is provided on the filter shell (501) in contact with the horizontal groove part.

4. The air compressor capable of adjusting the air intake volume according to claim 2, characterized in that: The inner wall of the filter housing (501) fits with the outer wall of the filter plate (503), and the outer wall of one end of the fixing block (505) fits with the inner wall of the fixing groove (504).

5. The air compressor capable of adjusting the air intake volume according to claim 2, characterized in that: The outer wall of the gear ring (510) is provided with first gear teeth, the first gear teeth meshing with the first spur gear (509), and the outer wall of the filter housing (501) is located on the inner wall of the gear ring (510) and fixedly connected to a plurality of support columns (7).

6. The air compressor capable of adjusting the air intake volume according to claim 2, characterized in that: The outer wall of the extrusion block (507) is provided with a first threaded hole, the first threaded hole matches the first threaded rod (508), and one side of the fixing block (505) is provided with a first inclined surface, the first inclined surface is in contact with the extrusion block (507).

7. The air compressor capable of adjusting the air intake volume according to claim 2, characterized in that: A second inclined surface is provided on one side of the top of the push rod (513), and the extrusion rod (515) is in contact with the second inclined surface.

8. The air compressor capable of adjusting the air intake volume according to claim 3, characterized in that: The inner wall of the rotating ring (604) is provided with second gear teeth, the second gear teeth meshing with the bevel gear (603), and the outer wall of the rotating ring (604) is provided with tooth grooves, the tooth grooves meshing with the second spur gear (605).

9. The air compressor capable of adjusting the air intake volume according to claim 3, characterized in that: A second threaded hole is formed at one end of the pushing block (608), and the second threaded hole matches the second threaded rod (606).

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