An air compressor capable of adjusting air intake volume

Abstract

The present invention discloses an air compressor capable of adjusting the air intake volume, which relates to the technical field of air compressors and includes a body, a movable wheel mounted on the bottom end of the body, an air intake pipe fixedly connected to the top end of the body, an air inlet fixedly connected to one end of the air intake pipe, air entering the air inlet is filtered by a filter mechanism, and the amount of air entering the air inlet is adjusted by an adjustment mechanism. The present invention facilitates the adjustment of the air intake volume of the air intake pipe by providing an adjustment mechanism. In addition, when the air inlet is not closed, the filter plate is prevented from loosening, preventing external air from directly entering the body through the air intake pipe. While achieving air intake volume adjustment, the present invention can also cooperate with the filter mechanism to achieve stable filtering and air intake operation.

Description

Technical Field

[0001] The present 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 for system pressure control. 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, excessive component wear, and increased vibration. The second method is to adjust the air 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 volume, an air compressor capable of adjusting the air intake volume 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-mentioned object, the present invention provides the following technical solution: an air compressor capable of adjusting air intake volume, comprising a body, a movable wheel mounted on the bottom end of the body, an air intake pipe fixedly connected to the top end of the body, an air inlet fixedly connected to one end of the air intake pipe, air entering the air inlet is filtered by a filtering mechanism, and the amount of air entering the air inlet is adjusted by an adjusting mechanism;

[0007] The filter mechanism includes a filter shell, the filter shell is fixedly connected to one end of the air inlet, the inner wall of the filter shell is symmetrically fixedly connected to the limit seat up and down, the inner cavity of the filter shell is located at one end of the limit 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, the fixing block and the filter shell are connected with a first spring, the interior of the filter shell is located on one side of the fixing block and is slidably connected to an extrusion 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.

[0008] As a further solution of the present invention: the filter 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 the two limit seats are rotatably connected at one end close to each other with a baffle, a torsion spring is connected between the baffle and the limit seat, and the interior of the limit seat is slidably connected to a push rod in contact with the baffle, a second spring is connected between the push rod and the limit seat, and the interior of the limit seat is slidably connected to an extrusion rod located on one side of the push rod, and the extrusion rod extends out of the limit seat.

[0009] 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 cam is fixedly mounted on a support frame, and the cam is secured to the bottom of the support frame with respect to the filter housing.

[0010] As a further solution of the present invention: the inner wall of the filter housing 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.

[0011] 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 engaged with the first spur gear, and the outer wall of the filter housing is located on the inner wall of the gear ring and is fixedly connected to a plurality of support columns.

[0012] As a further solution of the present invention: a first threaded hole is opened on the 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.

[0013] 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.

[0014] 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 engaged with the bevel gear, and the outer wall of the rotating ring is provided with tooth grooves, the tooth grooves are engaged with the second spur gear.

[0015] As a further solution of the present invention: a second threaded hole is opened at one end of the pushing block, and the second threaded hole matches the second threaded rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 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. The displacement of the extrusion block pushes the fixed block to move. The fixed block moves out of the fixed groove, canceling the fixation of the filter plate, making it convenient to filter the air entering the machine body through the filter plate while facilitating replacement and maintenance operations; when the filter plate is removed, the baffle rotates to close one end of the air inlet, thereby blocking one end of the air inlet when replacing the filter plate to prevent debris in the air from entering the machine body.

[0018] 2. By setting up an 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 achieving 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

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the filter housing of the present invention;

[0021] Figure 3 Schematic diagram of the installation of the filter plate of the present invention;

[0022] Figure 4 Schematic diagram of the installation structure of the extrusion block and the fixed block of the present invention;

[0023] Figure 5 Schematic diagram of the internal structure of the limit seat of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 Schematic diagram of the internal structure of the filter housing of the present invention;

[0026] Figure 8 Schematic diagram of the installation structure of the adjustment plate of the present invention;

[0027] Figure 9 It is a structural schematic diagram of the positioning block of the present invention.

[0028] In the figure: 1. body; 2. moving wheel; 3. air inlet pipe; 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

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not 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, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. 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 describes an embodiment of the present invention based on its overall structure.

[0031] 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 movable 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, and 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.

[0032] 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 at the upper and lower ends. 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 slidably connected to an extrusion block 507 on one side of the fixed block 505. 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 A first threaded rod 508 is fixedly connected, and the first threaded rod 508 extends to the interior of the extrusion block 507. The filter mechanism 5 also includes a gear 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 straight gear 509. The two limit seats 502 are rotatably connected to one end close to each other 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 to 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 to an extrusion rod 515, and the extrusion rod 515 extends out of the limit seat 502.

[0033] 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 housing 501 and contacts the limit seat 502. At this time, the fixing block 505 is engaged with 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. 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 fixing block 505 to move. The fixing block 505 moves out of the fixing groove 504, and the fixation of the filter plate 503 is cancelled.

[0034] 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. 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 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 contact pushes the extrusion rod 515 to move, and the displacement of the extrusion rod 515 pushes the push rod 513 to move, and the push rod 513 moves into the limit seat 502 and separates from the baffle 511. The baffle 511 rotates and resets under the torsion force of the torsion spring 512, and one end of the air inlet 4 is opened; this design facilitates the filtering operation of 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.

[0035] Please refer to Figures 7 to 9 The adjustment mechanism 6 includes a fan-shaped adjustment plate 601, and the adjustment plate 601 is distributed circumferentially on the inner wall of the air inlet 4. The outer wall of the adjustment plate 601 is fixedly connected to the 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 to the bevel gear 603. The interior of the air inlet 4 is located at the outer wall of the bevel gear 603 and is rotatably connected to the rotating ring 604. The interior of the air inlet 4 is located at the top of the rotating ring 604 and is rotatably connected to the second spur gear 605. The inner wall of the second spur gear 605 is fixedly connected to the second threaded rod 606, and one end of the second threaded rod 606 is fixedly connected to the rotating block 607. The outer wall of the other end of the second threaded rod 606 is slidably connected to the pushing block 608, and the pushing block 608 slides Connected to the interior of the air inlet 4, the interior of the filter shell 501 is located at one end of the pushing block 608 and is slidably connected to 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 to 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 to 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.

[0036] In this embodiment: air enters the air intake pipe 3 through the air inlet 4 and then enters the body 1. When adjusting the air intake volume, 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 volume of the air inlet 4.

[0037] 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 the movable frame 609, pushing the movable frame 609 to move, squeezing the third spring 610, and the displacement of the movable frame 609 drives the connecting frame 611 to move, and the displacement of the connecting frame 611 drives the positioning block 61 2 is displaced, the positioning block 612 moves out of the positioning groove 613 and enters the receiving groove on the filter housing 501, canceling the fixation of the fixing block 505 and allowing the fixing block 505 to generate an upward relative displacement relative to the cross arm portion of the connecting frame 611 (under the extrusion force of the extrusion block 507), thereby allowing the filter plate 503 to be replaced, facilitating the adjustment of the air intake volume of the intake pipe 3, and at the same time, preventing the filter plate 503 from loosening when the air inlet 4 is not closed, thereby preventing external air from directly entering the body 1 through the intake pipe 3.

[0038] Please refer to Figures 2 to 3 The inner wall of the filter housing 501 fits in with the outer wall of the filter plate 503 , and the outer wall of one end of the fixing block 505 fits in with the inner wall of the fixing groove 504 .

[0039] 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 to fix the filter plate 503 .

[0040] Please refer to Figures 3 and 4 The outer wall of the gear ring 510 is provided with a first gear tooth, which is engaged 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 .

[0041] 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.

[0042] Please refer to Figures 3 and 4 A first threaded hole is provided 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 provided on one side of the fixing block 505 , and the first inclined surface contacts the extrusion block 507 .

[0043] In this embodiment, the first spur gear 509 rotates to drive the first threaded rod 508 to rotate, and the rotation of the first threaded rod 508 drives the extrusion block 507 to move. The displacement of the extrusion block 507 pushes the fixed block 505 to move. The fixed block 505 moves out of the fixing groove 504, canceling the fixation of the filter plate 503.

[0044] 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 extrusion rod 515 contacts the second inclined surface.

[0045] In this embodiment, when the filter plate 503 is installed, the filter plate 503 moves and contacts the limiting seat 502 , and the filter plate 503 contacts the extrusion rod 515 to push the extrusion rod 515 to move. The displacement of the extrusion rod 515 pushes the push rod 513 to move.

[0046] 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 , and the outer wall of the rotating ring 604 is provided with tooth grooves, which mesh with the second spur gear 605 .

[0047] In this embodiment: rotate the rotating block 607, 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, and the connecting shaft 602 rotates to drive the adjustment plate 601 to rotate.

[0048] Please refer to Figures 7 to 9 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 .

[0049] In this embodiment, 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.

[0050] Please refer to Figures 7 to 9 , the inner wall of the positioning groove 613 is in contact with the outer wall of the positioning block 612 .

[0051] 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. The pushing block 608 moves and contacts the movable frame 609, pushing the movable frame 609 to move, squeezing the third spring 610. The displacement of the movable frame 609 drives the connecting frame 611 to move. The displacement of the connecting frame 611 drives the positioning block 612 to move. The positioning block 612 moves out of the positioning groove 613 and enters the receiving groove on the filter housing 501, canceling the fixation of the fixed block 505.

[0052] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An air compressor capable of adjusting the air intake volume, comprising a body (1), a movable wheel (2) being mounted on 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), characterized in that: 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 a regulating mechanism (6); The filter mechanism (5) comprises a filter housing (501), the filter housing (501) being fixedly connected to one end of the air inlet (4), the inner wall of the filter housing (501) being symmetrically fixedly connected to a limit seat (502) in the upper and lower parts, the inner cavity of the filter housing (501) being located at one end of the limit seat (502) and having a filter plate (503) installed thereon, the top and bottom ends of the filter plate (503) being provided with fixing grooves (504), the interior of the filter housing (501) being slidably connected to a filter plate extending to the filter housing (501), A fixing block (505) in the inner cavity, a first spring (506) being connected between the fixing block (505) and the filter housing (501), an extrusion block (507) being slidably connected to one side of the fixing block (505) inside the filter housing (501), a first spur gear (509) being rotatably connected to the outer wall of the filter housing (501), a first threaded rod (508) being fixedly connected to one end of the first spur gear (509), and the first threaded rod (508) extending to the interior of the extrusion block (507); The filtering mechanism (5) further comprises a toothed ring (510), the toothed ring (510) being rotatably connected to the outer wall of the filtering housing (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) that are close to each other, a torsion spring (512) being connected between the baffle (511) and the limiting seat (502), a push rod (513) in contact with the baffle (511) being slidably connected inside the limiting seat (502), a second spring (514) being connected between the push rod (513) and the limiting seat (502), an extrusion rod (515) being slidably connected inside the limiting seat (502) and located on one side of the push rod (513), and the extrusion rod (515) extending out of the limiting seat (502); A first inclined surface is provided on one side of the fixing block (505), and the first inclined surface is in contact with the extrusion block (507); 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.

2. The air compressor capable of adjusting the air intake volume according to claim 1, characterized in that: The regulating mechanism (6) includes a fan-shaped regulating plate (601), the regulating plate (601) is 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), and the inside of the filter shell (501) is slidably connected to a movable frame (609) at one end of the pushing block (608), and 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), and a cross-shaped positioning groove (613) is provided on the outer wall of the fixed block (505) facing the filter plate (503). 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), 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) in contact with the horizontal groove part.

3. The air compressor capable of adjusting the air intake volume according to claim 1, characterized in that: The inner wall of the filter housing (501) fits in contact with the outer wall of the filter plate (503), and the outer wall of one end of the fixing block (505) fits in contact with the inner wall of the fixing groove (504).

4. The air compressor capable of adjusting the air intake volume according to claim 1, characterized in that: The outer wall of the gear ring (510) is provided with first gear teeth, which mesh with the first spur gear (509). The outer wall of the filter housing (501) is located on the inner wall of the gear ring (510) and is fixedly connected to a plurality of support columns (7).

5. The air compressor capable of adjusting the air intake volume according to claim 1, characterized in that: 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).

6. The air compressor capable of adjusting the air intake volume according to claim 2, characterized in that: 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).

7. The air compressor capable of adjusting the air intake volume according to claim 2, 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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