Air purifier with adjustable filtering pore

Abstract

The utility model relates to air purifier technical field, concretely is a kind of air purifier with adjustable filter aperture, the utility model, including purification host computer, the bottom surface middle region of purification host computer is fixedly connected with equipment pedestal, this equipment pedestal is along the vertical axis of symmetry of purification host computer and is arranged, the front side surface of purification host computer is hinged with open-close door, the outer surface middle part of this open-close door is embedded with control panel, the upper region of the lateral wall of purification host computer is provided with purification outlet pipe along horizontal direction, and the inside chamber of the purification outlet pipe and purification host computer is communicated.The utility model, by design detachable filter assembly, cooperate the fixed structure of support seat, sleeve seat, limiting support and positioning spring, the quick disassembly replacement of filter dust screen is realized, without disassembling purifier main body, only by pulling pull ring, rotating limiting support can complete filter material replacement, greatly simplify maintenance operation, reduce user maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to an air purifier with adjustable filter pore size. Background Technology

[0002] In the field of air purification equipment, the filtration mechanisms of existing air purifiers generally suffer from design limitations. Most air purifiers use a fixed, integrated filter structure, meaning the pore size of the internal filter media cannot be adjusted according to the air quality requirements of the actual usage scenario. When facing environments with low particulate matter concentrations, the fixed pore size of the filter media can easily cause excessive airflow resistance, affecting the purification airflow; conversely, when particulate matter concentrations are high, the filter media is prone to rapid blockage, leading to a sharp drop in purification efficiency. Furthermore, the disassembly and maintenance of existing filter components are cumbersome. Replacing the filter media often requires disassembling the main body of the purifier, which is not only time-consuming and labor-intensive but may also damage internal components due to improper disassembly, increasing user maintenance costs and operational difficulty.

[0003] In addition, some air purifiers lack an effective air disturbance structure inside. When outside air enters the purifier, it tends to stagnate in some areas of the chamber, resulting in insufficient contact between the air and the filter material. Some unfiltered air containing particulate matter is directly discharged through the air outlet, causing particulate matter leakage and failing to achieve the expected purification effect. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing an air purifier with adjustable filter pore size.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air purifier with adjustable filter pores, comprising a purification unit, a device base fixedly connected to the central area of ​​the bottom surface of the purification unit, the device base being symmetrically arranged along the vertical axis of the purification unit, an opening and closing door hinged to the front surface of the purification unit, a control panel embedded in the center of the outer surface of the opening and closing door, a purification outlet pipe arranged horizontally in the upper area of ​​the side wall of the purification unit, the purification outlet pipe communicating with the internal chamber of the purification unit, an air inlet pipe fixedly connected vertically in the central area of ​​the top of the purification unit, an annular mounting groove circumferentially formed on the inner wall of the air inlet pipe, a filter assembly detachably disposed on the inner wall of the annular mounting groove, the filter assembly including a mounting ring, the outer ring wall of the mounting ring engaging with the inner wall of the annular mounting groove, a dust filter mesh circumferentially engaging on the inner ring wall of the mounting ring, and two support seats symmetrically fixedly connected to the lower part of the outer peripheral wall of the air inlet pipe, the two support seats being located on the left and right sides of the air inlet pipe respectively.

[0006] Preferably, each of the support seats has a sleeve seat fixedly connected to the side surface opposite to the air inlet pipe. The sleeve seat extends horizontally, and a limit bracket is slidably connected to the inner wall of the sleeve seat along its axial direction. A positioning spring is sleeved on the outer peripheral surface of the limit bracket, and a pull ring is fixedly connected to the outer end of the limit bracket away from the air inlet pipe. The pull ring is circular and coaxially arranged with the limit bracket.

[0007] Preferably, the bottom surface of the mounting ring abuts against the top surfaces of the two support seats to provide vertical support for the mounting ring. The two support seats are symmetrically distributed about the vertical axis of the air inlet pipe. Each support seat has a circular through hole on its side away from the air inlet pipe. The circular through hole extends along the thickness direction of the support seat and communicates with the internal cavity of the corresponding sleeve seat. The limiting bracket is rotatably inserted into the circular through hole and can slide along the axial direction of the circular through hole.

[0008] Preferably, the lower part of the outer ring wall of the mounting ring has a horizontal insertion hole along its radial direction and a longitudinal insertion hole along its axial direction. The lower end of the longitudinal insertion hole penetrates the bottom surface of the mounting ring and is perpendicularly connected to the horizontal insertion hole. The inner end of the limiting bracket, near the air inlet pipe, can be inserted into the longitudinal insertion hole along the axial direction of the mounting ring and can rotate around its own axis to be locked into the horizontal insertion hole. One end of the positioning spring abuts against the surface of the support base, and the other end abuts against the stepped surface of the outer peripheral surface of the limiting bracket to provide the limiting bracket with an elastic preload towards the air inlet pipe.

[0009] Preferably, a stirring device is provided in the middle area of ​​the outer side wall of the purification host. The stirring device includes a fixed bracket, which is U-shaped and fixedly connected to the outer side wall of the purification host. A drive motor is fixedly connected to the inner side wall of the fixed bracket, and the drive end of the drive motor is facing the purification host.

[0010] Preferably, a protective shell is fixedly embedded in the inner side wall of the purification host corresponding to the position of the drive motor. The protective shell is hollow and cylindrical, and a bevel gear transmission group is provided inside. The bevel gear transmission group includes a first gear and a second gear that mesh with each other. The drive end of the drive motor passes through the rotating hole in the side wall of the purification host and extends into the protective shell, and is fixedly connected to the first gear through a coupling.

[0011] Preferably, the inner wall of the protective shell is rotatably connected to a transmission rod along the horizontal direction of the purification host. One end of the transmission rod inside the protective shell is fixedly connected to a second gear, and the rod segment outside the protective shell is fixedly connected with multiple stirring blades along its circumference. The output end of the drive motor meshes with the second gear on the transmission rod through a first gear to drive the transmission rod to rotate the stirring blades around the axis of the transmission rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] In this invention, a detachable filter assembly is designed, which, together with a support base, sleeve base, limiting bracket, and positioning spring forming a fixed structure, enables quick disassembly and replacement of the dust filter. The filter material can be replaced without disassembling the purifier body; simply pulling the pull ring and rotating the limiting bracket completes the replacement, significantly simplifying maintenance and reducing user maintenance costs. Furthermore, by replacing the dust filter with different pore sizes, the filter pores can be flexibly adjusted to suit both high-efficiency ventilation scenarios with low-concentration particulate matter and deep filtration scenarios with high-concentration particulate matter, ensuring that the equipment maintains stable purification efficiency under different air quality conditions.

[0014] In this invention, the stirring device solves the problem of air stagnation inside the purifier. The drive motor drives the transmission rod and stirring blades to rotate through the bevel gear transmission assembly, which can fully agitate the air inside the purification unit, promote uniform air flow, and ensure full contact between the air and the filter material. This prevents unfiltered air from being discharged directly, significantly improving purification uniformity and efficiency. The protective shell protects the bevel gear transmission assembly, preventing dust and impurities from entering the transmission structure and affecting operational stability, thus extending the service life of the stirring device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram from another angle of the present invention;

[0017] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the stirring device of this utility model.

[0019] Legend:

[0020] 1. Equipment base; 2. Purification unit; 3. Air inlet pipe; 4. Purification outlet pipe; 5. Control panel; 6. Dust filter; 7. Support base; 8. Sleeve base; 9. Limit bracket; 10. Pull ring; 11. Positioning spring; 12. Longitudinal insertion hole; 13. Horizontal insertion hole; 14. Fixed bracket; 15. Drive motor; 16. Bevel gear transmission assembly; 17. Protective shell; 18. Transmission rod; 19. Agitator blades. Detailed Implementation

[0021] Please see Figure 1-4This utility model provides a technical solution: an air purifier with adjustable filter pores, including a purification unit 2. The purification unit 2 has a columnar structure, and its bottom center is fixedly connected to a device base 1 by bolts. The device base 1 is made of metal and is symmetrically arranged along the vertical axis of the purification unit 2. The device base 1 can provide stable support for the purification unit 2 and prevent the purification unit 2 from tipping over during use. A hinged door is located near the edge of the front surface of the purification unit 2. The size of the door is adapted to the front opening of the purification unit 2, and a control panel 5 is embedded in the center of the outer surface of the door. The control panel 5 has multiple buttons for controlling the power on / off of the purification unit 2, adjusting the fan speed, and starting / stopping the stirring device 5. The control panel 5 can also display the air quality parameters inside the purification unit 2 in real time. A purification outlet pipe 4 is welded horizontally to the upper side wall of the purification unit 2. One end of the purification outlet pipe 4 is connected to the internal chamber of the purification unit 2, and the other end extends outward. Filtered clean air can be discharged outside the purification unit 2 through the purification outlet pipe 4. An air inlet pipe 3 is vertically welded to the top center area of ​​the purification unit 2. A ring-shaped mounting groove is opened around the inner wall of the air inlet pipe 3. The width of the ring-shaped mounting groove is adapted to the thickness of the mounting ring of the filter assembly 4.

[0022] The filter assembly is detachably mounted on the inner wall of the annular mounting groove. The filter assembly includes a mounting ring made of plastic, whose outer ring wall is tightly engaged with the inner wall of the annular mounting groove. A dust filter 6, made of HEPA material, is circumferentially engaged with the inner ring wall of the mounting ring to effectively filter airborne particles. The edge of the dust filter 6 fits snugly against the inner ring wall of the mounting ring and is secured with clips to prevent displacement during use. Two symmetrical support seats 7 are welded to the lower part of the outer peripheral wall of the air inlet pipe 3. These two support seats 7 are located on the left and right sides of the air inlet pipe 3 and are perpendicularly connected to the outer peripheral wall of the air inlet pipe 3. The support seats 7 are made of metal and provide vertical support for the mounting ring. Each support 7 has a sleeve 8 welded to its surface opposite the air inlet pipe 3. The sleeve 8 extends horizontally and has a hollow interior. A limit bracket 9 is slidably connected to the inner wall of the sleeve 8 along its axial direction. The limit bracket 9 is a rod-shaped structure with a positioning spring 11 sleeved on its outer circumference. The positioning spring 11 is always in a slightly compressed state. A pull ring 10 is welded to the outer end of the limit bracket 9, which is the end away from the air inlet pipe 3. The pull ring 10 is circular and coaxial with the limit bracket 9. The operator can move the limit bracket 9 along the axial direction of the sleeve 8 by pulling the pull ring 10. The bottom surface of the mounting ring abuts against the top surface of the two support seats 7. The two support seats 7 are symmetrically distributed about the vertical axis of the air inlet pipe 3. Each support seat 7 has a circular through hole on the side surface away from the air inlet pipe 3. The circular through hole is arranged through the thickness direction of the support seat 7 and is connected to the internal cavity of the corresponding sleeve seat 8. The limiting bracket 9 is rotatably inserted in the circular through hole and can slide along the axial direction of the circular through hole. The inner diameter of the circular through hole is matched with the outer diameter of the limiting bracket 9 to ensure that the limiting bracket 9 will not shake when it moves. The lower part of the outer ring wall of the mounting ring has a horizontal insertion hole 13 along its radial direction and a longitudinal insertion hole 12 along its axial direction. The lower end of the longitudinal insertion hole 12 penetrates the bottom surface of the mounting ring and is perpendicularly connected to the horizontal insertion hole 13. The inner end of the limiting bracket 9, that is, the end near the air inlet pipe 3, can be inserted into the longitudinal insertion hole 12 along the axial direction of the mounting ring, and can rotate 90 degrees around its own axis before being locked into the horizontal insertion hole 13. This cooperation achieves the fixation of the mounting ring on the air inlet pipe 3. One end of the positioning spring 11 abuts against the surface of the support base 7 and the other end abuts against the stepped surface of the outer peripheral surface of the limiting bracket 9. The positioning spring 11 can provide an elastic preload force to the limiting bracket 9 toward the air inlet pipe 3, ensuring that the limiting bracket 9 can be stably locked in the horizontal insertion hole 13 when not pulled by external force.

[0023] A stirring device is installed in the middle area of ​​the outer wall of the purification unit 2. The stirring device includes a fixed bracket 14, which has a U-shaped structure and is fixedly connected to the outer wall of the purification unit 2 by bolts. The fixed bracket 14 provides stable support for the drive motor 15. The drive motor 15 is fixedly connected to the inner wall of the fixed bracket 14 by bolts. The drive end of the drive motor 15 faces the purification unit 2, and the axis of the drive end is perpendicular to the side wall of the purification unit 2. A protective shell 17 is fixedly embedded in the inner wall of the purification unit 2 at the position corresponding to the drive motor 15. The protective shell 17 has a hollow columnar structure and is made of metal. The protective shell 17 can prevent dust or impurities inside the purification unit 2 from entering its interior and affecting the operation of the bevel gear transmission group 16. The bevel gear transmission group 16 is set inside the protective shell 17. The bevel gear transmission group 16 includes a first gear and a second gear that mesh with each other. The number of teeth of the first gear and the second gear are matched to ensure smooth transmission. The drive end of the drive motor 15 extends into the protective shell 17 after passing through a rotating hole in the side wall of the purification unit 2, and is fixedly connected to the first gear via a coupling. The coupling ensures that the power of the drive motor 15 is stably transmitted to the first gear. A transmission rod 18 is rotatably connected to the inner wall of the protective shell 17 along the horizontal direction of the purification unit 2 via bearings. The axis of the transmission rod 18 is parallel to the axis of the purification unit 2. One end of the transmission rod 18 inside the protective shell 17 is fixedly connected to the second gear. Multiple stirring blades 19 are welded circumferentially to the rod section outside the protective shell 17. These stirring blades 19 are evenly distributed and symmetrically arranged along the axial direction of the transmission rod 18. The stirring blades 19 are made of plastic with a smooth surface that does not easily accumulate dust. The output end of the drive motor 15 meshes with the second gear on the transmission rod 18 via the first gear. When the drive motor 15 is running, it can drive the transmission rod 18 to rotate via the bevel gear transmission assembly 16.

[0024] Working Principle: When using this air purifier with adjustable filter pores, the operator starts the device via the control panel 5. External air first enters the purification unit 2 through the air inlet pipe 3. As the air flows through the dust filter 6 inside the air inlet pipe 3, the dust filter 6 filters out particulate matter. The filtered clean air enters the internal chamber of the purification unit 2 and is then discharged through the purification outlet pipe 4, thus achieving the air purification function. When it is necessary to replace the dust filter 6 to ensure filtration effectiveness, the operator pulls the pull rings 10 on the two support seats 7 respectively. The pull rings 10 drive the limiting bracket 9 to slide outward along the axial direction of the sleeve seat 8. During the sliding process, the limiting bracket 9 compresses the positioning spring 11, further compressing it. When the inner end of the limiting bracket 9 is completely disengaged from the horizontal insertion hole 13 of the mounting ring, the operator rotates the limiting bracket 9 90 degrees around its own axis, aligning the inner end of the limiting bracket 9 with the longitudinal insertion hole 12 of the mounting ring. At this point, the pull rings 10 are released, and the positioning spring 11 pushes the limiting bracket 9 outward under the action of elastic restoring force. The positioning bracket 9 moves inward along the axial direction, and the inner end of the limiting bracket 9 is inserted into the longitudinal insertion hole 12. Then, the operator pulls the mounting ring upward to disengage the mounting ring from the annular mounting groove of the air inlet pipe 3, removes the old dust filter 6 on the inner ring wall of the mounting ring and replaces it with a new dust filter 6. After the replacement is completed, the mounting ring is re-inserted into the annular mounting groove so that the bottom surface of the mounting ring abuts against the top surface of the support base 7. The pulling ring 10 is pulled again to disengage the limiting bracket 9 from the longitudinal insertion hole 12 and rotate it 90 degrees. After the pulling ring 10 is released, the positioning spring 11 pushes the limiting bracket 9 into the horizontal insertion hole 13, completing the replacement of the dust filter 6.

[0025] During the air purification process, the operator can start the stirring device 5 through the control panel 5. After the drive motor 15 is powered on, its drive end drives the first gear to rotate. Since the first gear and the second gear mesh with each other, the first gear will drive the second gear to rotate synchronously. The second gear drives the transmission rod 18 to rotate around its own axis. During the rotation of the transmission rod 18, it will drive the stirring blades 19 on its outer periphery to rotate together. The rotation of the stirring blades 19 can stir the air in the internal chamber of the purification host 2, so that the air flows more evenly inside the purification host 2, avoiding local air stagnation that affects the purification efficiency. At the same time, it can also prevent the problem of dust accumulation on the components inside the purification host 2 due to poor air flow, further ensuring the stable operation of the air purifier.

Claims

1. An air purifier with adjustable filter pore size, comprising a purification unit (2), characterized in that: A device base (1) is fixedly connected to the middle area of ​​the bottom surface of the purification host (2). The device base (1) is symmetrically arranged along the vertical axis of the purification host (2). A hinged door is hinged to the front surface of the purification host (2). A control panel (5) is embedded in the middle of the outer surface of the door. A purification outlet pipe (4) is arranged horizontally in the upper area of ​​the side wall of the purification host (2). The purification outlet pipe (4) is connected to the internal cavity of the purification host (2). The top center area of ​​the purification host (2) is arranged along... An air inlet pipe (3) is vertically fixedly connected. The inner wall of the air inlet pipe (3) is provided with an annular mounting groove. The filter assembly is detachably installed on the inner wall of the annular mounting groove. The filter assembly includes a mounting ring. The outer ring wall of the mounting ring is engaged with the inner wall of the annular mounting groove. The inner ring wall of the mounting ring is engaged with a dust filter (6) along the circumference. Two support seats (7) are symmetrically fixedly connected to the lower part of the outer circumferential wall of the air inlet pipe (3). The two support seats (7) are located on the left and right sides of the air inlet pipe (3) respectively.

2. An air purifier with adjustable filter pore size according to claim 1, characterized in that: Each of the support seats (7) has a sleeve seat (8) fixedly connected to the side surface away from the air inlet pipe (3). The sleeve seat (8) extends in the horizontal direction. The inner wall of the sleeve seat (8) is slidably connected to a limit bracket (9) along its axial direction. The outer peripheral surface of the limit bracket (9) is fitted with a positioning spring (11). The outer end of the limit bracket (9) away from the air inlet pipe (3) is fixedly connected to a pull ring (10). The pull ring (10) is circular and coaxially arranged with the limit bracket (9).

3. An air purifier with adjustable filter pore size according to claim 2, characterized in that: The bottom surface of the mounting ring abuts against the top surface of the two support seats (7) to form a vertical support for the mounting ring. The two support seats (7) are symmetrically distributed about the vertical axis of the air inlet pipe (3). Each support seat (7) has a circular through hole on the side surface away from the air inlet pipe (3). The circular through hole is arranged through the thickness direction of the support seat (7) and is connected to the internal cavity of the corresponding sleeve seat (8). The limiting bracket (9) is rotatably inserted in the circular through hole and can slide along the axial direction of the circular through hole.

4. An air purifier with adjustable filter pore size according to claim 2, characterized in that: The lower part of the outer ring wall of the mounting ring has a horizontal insertion hole (13) along its radial direction and a longitudinal insertion hole (12) along its axial direction. The lower end of the longitudinal insertion hole (12) penetrates the bottom surface of the mounting ring and is vertically connected to the horizontal insertion hole (13). The inner end of the limiting bracket (9) near the air inlet pipe (3) can be inserted into the longitudinal insertion hole (12) along the axial direction of the mounting ring, and can rotate 90° around its own axis and then be inserted into the horizontal insertion hole (13). One end of the positioning spring (11) abuts against the surface of the support base (7), and the other end abuts against the stepped surface of the outer peripheral surface of the limiting bracket (9) to provide the limiting bracket (9) with an elastic preload towards the air inlet pipe (3).

5. An air purifier with adjustable filter pore size according to claim 1, characterized in that: A stirring device is provided in the middle area of ​​the outer side wall of the purification host (2). The stirring device includes a fixed bracket (14), which is U-shaped and fixedly connected to the outer side wall of the purification host (2). A drive motor (15) is fixedly connected to the inner side wall of the fixed bracket (14), and the drive end of the drive motor (15) is set towards the purification host (2).

6. An air purifier with adjustable filter pore size according to claim 5, characterized in that: The inner wall of the purification host (2) is fixedly fitted with a protective shell (17) corresponding to the position of the drive motor (15). The protective shell (17) is hollow columnar and has a bevel gear transmission group (16) inside. The bevel gear transmission group (16) includes a first gear and a second gear that mesh with each other. The drive end of the drive motor (15) passes through the rotating hole on the side wall of the purification host (2) and extends into the protective shell (17), and is fixedly connected to the first gear through a coupling.

7. An air purifier with adjustable filter pore size according to claim 6, characterized in that: The inner wall of the protective shell (17) is rotatably connected to a transmission rod (18) along the horizontal direction of the purification host (2). One end of the transmission rod (18) inside the protective shell (17) is fixedly connected to the second gear. The rod segment outside the protective shell (17) is fixedly connected with multiple stirring blades (19) along its circumference. The output end of the drive motor (15) meshes with the second gear on the transmission rod (18) through the first gear to drive the transmission rod (18) to drive the stirring blades (19) to rotate around the axis of the transmission rod (18).

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