A brush cleaning device for air purification filter screens

Abstract

The application discloses a kind of air purification filter screen's brush washing device, it is related to air purification equipment maintenance technical field, including cleaning box, the top of the cleaning box is hinged with sealing cover by hinge, the application is closed by adopting cleaning box and negative pressure dust collection structure, all cleaning processes are completed in closed box, can be collected simultaneously the dust generated by brushing, solve the problem that traditional manual bare cleaning is easy to cause dust to drift everywhere, secondary pollution of surrounding environment, while avoiding secondary adhesion filter screen of impurities from outside, guarantee clean work environment clean and controllable, integrated rotary brush surface cleaning and intelligent recognition type filter hole dredging dual cleaning structure, both can efficiently peel off filter screen surface layer dust, also can accurately position filter hole by fiber optic sensor, drive brush rod to clean embedded fine particulate matter inside filter hole, solve the limitation that traditional cleaning can only clean surface layer, filter hole deep impurities cannot be effectively removed, restore filter screen permeability in all directions.

Description

Technical Field

[0001] This invention relates to the field of air purification equipment maintenance technology, and more specifically, to a brushing device for air purification filters. Background Technology

[0002] Air purifier filters are the core filtration components of various air purification devices. Based on filtration precision, they can be categorized into different levels such as pre-filters, medium-efficiency filters, and high-efficiency filters. Some products also incorporate functional coatings such as activated carbon and photocatalysts. They can effectively intercept pollutants in the air, including hair, dust, fine particulate matter, pollen, and microorganisms, while also adsorbing odors and harmful gases. Widely used in household air purifiers, fresh air systems, and car air conditioners, they are crucial consumables for ensuring air cleanliness and require regular cleaning and replacement.

[0003] Currently, the cleaning of existing filters after disassembly is generally done manually by hand-held brushes. During this process, dust on the filter surface easily spreads and causes secondary dust pollution to the surrounding environment. Furthermore, the brushes can only clean the surface dust of the filter and cannot penetrate deep into the filter pores to remove embedded fine particles, resulting in a significant limitation in cleaning effectiveness. If water is used for cleaning, there is a lack of efficient drying methods after washing, and the natural drying period is long. In a damp state, bacteria and microorganisms are prone to grow, which in turn affects the cleanliness of the filter and fails to meet the actual needs of efficient cleaning and maintenance.

[0004] Therefore, based on the above, and drawing on years of experience in design, development and manufacturing in the relevant industry, the inventor has researched and improved the existing structure and its shortcomings, and provided a brushing device for air purification filters in order to achieve a more practical purpose. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a brushing device for air purification filters to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a brushing device for an air purification filter, comprising a cleaning box, the top of which is hinged to a sealing cover, and a rotating mechanism at the bottom of the cleaning box, the rotating mechanism comprising a turntable rotatably mounted on the inner wall of the bottom side of the cleaning box, a magnetic adaptive clamping assembly on the upper side of the turntable, and a filter body on the magnetic adaptive clamping assembly. The cleaning box is equipped with a fitting mechanism, a vertical moving mechanism, a horizontal moving mechanism, and a rotary cleaning mechanism. The rotary cleaning assembly includes a fixed block fixedly mounted on the horizontal moving mechanism, a rotating shaft rotatably mounted on the fixed block, a cleaning plate fixedly mounted on one end of the rotating shaft, a cleaning brush fixedly adhered to the outer side of the cleaning plate, the cleaning brush contacting the filter body, a third servo motor fixedly mounted on one end of the fixed block, the output shaft of the third servo motor connected to the other end of the rotating shaft, a filter hole cleaning mechanism embedded in one end of the rotating shaft, the filter hole cleaning mechanism including a second electric telescopic rod fixedly mounted on one end of the rotating shaft, a brush rod fixedly mounted on the extended end of the second electric telescopic rod, the brush rod being adapted to the filter holes on the filter body; A dust removal mechanism is fixedly installed on one side of the fixed block. An air supply mechanism is installed on the dust removal mechanism. The air supply mechanism is installed on the outside of the cleaning box. A spraying mechanism is provided on the bottom side of the translation mechanism. A sterilization mechanism is installed on the spraying mechanism. The sterilization mechanism is installed on the outside of the cleaning box. A disinfection mechanism is installed on one inner wall of the cleaning box. The disinfection mechanism includes an ultraviolet lamp installed on one inner wall of the cleaning box. The ultraviolet lamp is compatible with the filter body. A PLC intelligent controller is installed on the cleaning box. The PLC intelligent controller is communicatively connected to the third servo motor, the second electric telescopic rod, the fiber optic photoelectric sensor, and the ultraviolet lamp.

[0007] As a preferred technical solution, a rotating shaft is rotatably mounted on the cleaning box, the top end of the rotating shaft is fixedly mounted on the bottom side of the turntable, a worm gear is fixedly sleeved on the bottom side of the rotating shaft, a worm is meshed on the worm gear, and two positioning blocks are rotatably mounted on the worm, both of which are fixedly mounted on the cleaning box.

[0008] As a preferred technical solution, a first servo motor is fixedly installed on the cleaning box, the output shaft of the first servo motor is connected to one end of the worm gear, and the first servo motor is communicatively connected to the PLC intelligent controller.

[0009] As a preferred technical solution, a first electric telescopic rod is fixedly installed on the bottom inner wall of the cleaning box, and the extended end of the first electric telescopic rod is fixedly installed on the U-shaped frame. The first electric telescopic rod is communicatively connected to the PLC intelligent controller.

[0010] As a preferred technical solution, the vertical movement mechanism includes sliding grooves at both ends of the U-shaped frame. A drive block is slidably installed on the inner wall of each of the two sliding grooves. A second reciprocating screw is screwed onto one of the drive blocks. A fourth servo motor is fixedly installed on the corresponding end of the U-shaped frame. The output shaft of the fourth servo motor is connected to the top end of the second reciprocating screw. The fourth servo motor is communicatively connected to the PLC intelligent controller.

[0011] As a preferred technical solution, the translation mechanism includes a vertically fixed plate between the two drive blocks. A guide groove is provided on the vertically fixed plate, and a first reciprocating screw is rotatably mounted on the guide groove. A first internal thread block is screwed onto the first reciprocating screw. The upper end of the first internal thread block is fixedly mounted on a retaining block, and the bottom side of the first internal thread block is fixed to the spraying mechanism. A second servo motor is fixedly mounted on one end of the vertically fixed plate. The output shaft of the second servo motor is connected to one end of the first reciprocating screw, and the second servo motor is communicatively connected to a PLC intelligent controller.

[0012] As a preferred technical solution, the dust removal mechanism includes a dust collection hood fixedly installed on one side of the fixed block, an adapter pipe fixedly connected to the upper end of the dust collection hood, a vacuum cleaner fixedly installed on the outside of the cleaning box, a suction pipe fixedly connected to the upper end of the vacuum cleaner, a first control valve fixedly sleeved on the suction pipe, a first tee pipe fixedly connected to the other end of the suction pipe, and the other end of the first tee pipe connected to the other end of the adapter pipe. The vacuum cleaner and the first control valve are both communicatively connected to the PLC intelligent controller.

[0013] As a preferred technical solution, the air supply mechanism includes a hot air mold assembly fixedly installed on the cleaning box, an air supply pipe fixedly connected to the bottom side of the hot air mold assembly, a second control valve fixedly sleeved on the air supply pipe, and the other end of the air supply pipe fixedly connected to a first three-way pipe. The second control valve is communicatively connected to a PLC intelligent controller.

[0014] As a preferred technical solution, the spraying mechanism includes an injection pipe fixedly sleeved on the first internal threaded block, a spray head fixedly connected to one end of the injection pipe, the spray head being adapted to the filter body, a constant temperature storage tank fixedly installed on the outside of the cleaning box, a drain pipe fixedly connected to the constant temperature storage tank, a third control valve fixedly sleeved on the drain pipe, a second three-way pipe fixedly connected to the other end of the drain pipe, the other end of the second three-way pipe being fixedly connected to the other end of the injection pipe, and the third control valve being communicatively connected to the PLC intelligent controller.

[0015] As a preferred technical solution, the sterilization mechanism includes a sterilization liquid tank fixedly installed on the cleaning box, an outlet pipe fixedly connected to the bottom side of the sterilization liquid tank, a fourth control valve fixedly sleeved on the outlet pipe, the bottom end of the fourth control valve fixedly connected to the second three-way pipe, and the fourth control valve communicating with the PLC intelligent controller.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention uses a closed cleaning box with a negative pressure dust collection structure. All cleaning processes are completed in the sealed box, which can collect the dust generated by brushing at the same time. This solves the problem that traditional manual exposed cleaning can easily cause dust to float everywhere and cause secondary pollution to the surrounding environment. At the same time, it avoids external impurities from adhering to the filter screen again, ensuring that the cleaning operation environment is clean and controllable. 2. This invention integrates a dual cleaning structure of rotating brush surface cleaning and intelligent identification filter hole unblocking. It can efficiently remove floating dust from the filter screen surface and accurately locate the filter holes through fiber optic sensors, driving the brush rod to penetrate deep into the filter holes to remove embedded fine particles. This solves the limitation of traditional cleaning methods that can only clean the surface and cannot effectively remove impurities deep in the filter holes, thus restoring the filter screen's permeability in all aspects. 3. This invention is equipped with multiple functions such as hot air drying, chemical spray sterilization and ultraviolet irradiation disinfection. After washing with water, the filter screen can be dried quickly. At the same time, the double sterilization removes the bacteria and mold attached to the filter screen, solving the problems of long natural drying cycle after traditional water rinsing and easy growth of microorganisms in the humid state, and ensuring the long-term clean use effect of the filter screen. 4. This invention adopts a PLC intelligent control multi-axis linkage cleaning structure, combined with an automatic flipping clamping mechanism, to automatically complete the full-area cleaning of both sides of the filter screen. The entire process is automated, the cleaning procedure is standardized, and there is no need for repeated manual operation to flip the screen. This solves the problems of low efficiency and poor cleaning consistency of traditional manual cleaning, and can fully meet the actual use needs of efficient cleaning and maintenance of filter screens. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a cross-sectional view of the cleaning box of the present invention; Figure 4 This is a schematic diagram of the connection structure of the turntable, U-shaped frame and retaining block of the present invention; Figure 5 This is a schematic diagram of the connection structure of the cleaning box, turntable, and U-shaped frame of the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram of part A in the middle; Figure 7 This is a schematic diagram of the connection structure between the U-shaped frame and the vertical sliding plate of the present invention; Figure 8 This is a schematic diagram of the connection structure of the cleaning box, turntable and filter body of the present invention.

[0018] The attached figures are labeled as follows: 100, cleaning box; 200, sealing cover; 300, filter body; 400, turntable; 401, magnetic adaptive clamping assembly; 402, rotating shaft; 403, worm gear; 404, positioning block; 405, worm; 406, first servo motor; 500, U-shaped frame; 501, first electric telescopic rod; 600, vertical moving plate; 601, guide groove; 602, first reciprocating lead screw; 603, first internal thread block; 604, second servo motor; 700, retaining block; 701, rotating shaft; 702, cleaning plate; 703, cleaning brush; 704, third servo motor; 800, second electric telescopic rod; 801, brush rod; 802, fiber optic photoelectric sensor. Device; 900, Dust collection hood; 901, Vacuum cleaner; 902, Suction hose; 903, First control valve; 904, First tee pipe; 905, Adaptor pipe; 1000, Hot air mold assembly; 1001, Air supply pipe; 1002, Second control valve; 1100, Liquid injection pipe; 1101, Spray head; 1102, Constant temperature liquid storage tank; 1103, Drain pipe; 1104, Third control valve; 1105, Second tee pipe; 1200, Sterilization liquid tank; 1201, Liquid outlet pipe; 1202, Fourth control valve; 1300, Ultraviolet lamp; 1400, PLC intelligent controller; 1500, Slide rail; 1501, Second reciprocating lead screw; 1502, Drive block; 1503, Fourth servo motor. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] As attached Figure 1 To be continued Figure 8 The air purifier filter cleaning device shown includes a cleaning box 100 and a filter body 300. This device uses the enclosed cleaning box 100 as the main support and integrates a magnetic rotating clamping mechanism, a multi-axis linkage displacement adjustment mechanism, a rotating cleaning mechanism, an intelligent filter hole cleaning mechanism, a dust removal and air supply mechanism, a constant temperature spray cleaning mechanism, a chemical sterilization mechanism, and an ultraviolet disinfection mechanism. It integrates dry brushing dust removal, filter hole unclogging, constant temperature water washing, chemical sterilization, hot air drying, and ultraviolet disinfection into one multi-functional unit. It specifically addresses the industry pain points of traditional air filter cleaning methods, such as incomplete cleaning of clogged filter holes, easy residue of dust and bacteria during cleaning, cumbersome manual operation, poor cleaning consistency, and lack of standardized disinfection and drying procedures. It effectively improves the cleanliness and disinfection effect of the filter, ensuring the long-term purification performance of the air filter.

[0021] To address the problems of traditional filter cleaning operations lacking a sealed protective structure, resulting in dust overflow and water splashing, which not only pollute the workshop environment but also easily cause secondary dust accumulation on the filter, this equipment features a closed, sealed cleaning structure. The top of the cleaning chamber 100 is hinged to a sealing cover 200, allowing for completely sealed operation. Cleaning, dust removal, and disinfection processes are all completed inside the cleaning chamber 100, effectively isolating brush dust and water stains, preventing external environmental pollution, and avoiding external impurities from entering the chamber and adhering to the filter. This provides a closed and stable working environment for clean filter cleaning.

[0022] To address the shortcomings of traditional filter cleaning equipment, such as its single clamping and fixing structure, inability to accommodate filters of different sizes, limited cleaning capability to only one side of the filter per cycle requiring manual flipping, low efficiency, and poor positioning stability, this equipment incorporates a controllable magnetic adaptive rotary clamping mechanism. A turntable 400 is rotatably mounted on the inner bottom wall of the cleaning tank 100. A magnetic adaptive clamping component 401 is mounted on the upper side of the turntable 400, enabling the magnetic adaptive clamping of filter bodies 300 of different sizes. This provides a tight, close fit and strong adaptability, effectively preventing filter shifting and shaking during cleaning. Simultaneously, a rotating shaft 402 is rotatably mounted at the bottom of the cleaning box 100. The top of the rotating shaft 402 is fixedly connected to the turntable 400, and a worm gear 403 is fixedly sleeved at the bottom of the rotating shaft 402. The worm gear 403 meshes with a worm 405, which is rotatably mounted on the cleaning box 100 by two sets of positioning blocks 404. A first servo motor 406 is fixedly mounted on the outside of the cleaning box 100. The output shaft of the first servo motor 406 is fixedly connected to the end of the worm 405, and the first servo motor 406 is electrically connected to the PLC intelligent controller 1400. By driving the worm gear transmission through the servo motor, the turntable 400 can be precisely controlled to drive the filter body 300 to achieve a precise 180° rotation, eliminating the need for manual flipping and automatically completing the double-sided cleaning operation of the filter, greatly improving the degree of automation.

[0023] To address the limitations of traditional filter washing equipment, such as fixed operating positions, inability to achieve multi-dimensional displacement adjustment, limited washing range, blind spots, and difficulty in fully covering the entire filter area, this equipment is equipped with a fully automatic multi-axis linkage displacement adjustment mechanism. A first electric telescopic rod 501 is fixedly installed on the inner wall of the bottom side of the cleaning box 100. The extended end of the first electric telescopic rod 501 is fixedly connected to a U-shaped frame 500, allowing for overall control of the washing mechanism to move closer to or further from the filter, achieving adaptive and close-fitting cleaning. The U-shaped frame 500 has symmetrically arranged grooves 1500 at both ends. A drive block 1502 is slidably mounted inside the grooves 1500, and a second reciprocating screw 1501 is rotatably mounted within one side of the groove 1500. A fourth servo motor 1503 is fixedly mounted at the end of the U-shaped frame 500. The output shaft of the fourth servo motor 1503 is fixedly connected to the second reciprocating screw 1501, forming a vertically adjustable vertical movement mechanism that can drive the washing mechanism to move vertically in layers, achieving layered cleaning of the entire filter area. A vertical moving plate 600 is vertically fixed between two sets of drive blocks 1502. A guide groove 601 is opened inside the vertical moving plate 600. A first reciprocating screw 602 is rotatably mounted in the guide groove 601. The first reciprocating screw 602 is threadedly connected to a first internal thread block 603. A second servo motor 604 is fixedly installed at the end of the vertical moving plate 600. The second servo motor 604 drives the first reciprocating screw 602 to rotate, forming a horizontal reciprocating translation mechanism. This mechanism can drive the brushing mechanism to perform horizontal full-coverage reciprocating cleaning, completely eliminating cleaning dead corners. Each servo motor and electric telescopic rod is connected to the PLC intelligent controller 1400 for communication, realizing precise electronic control adjustment throughout the process.

[0024] To address the problems of traditional filter cleaning methods, which often involve fixed-point cleaning, resulting in poor brush bristle adhesion, uneven cleaning force, and incomplete removal of stubborn dust and floating particles from the filter surface, this equipment incorporates a servo-controlled rotary cleaning mechanism. A retaining block 700 is fixedly mounted on the first internal threaded block 603 of the translation mechanism. A rotating shaft 701 is rotatably mounted on the retaining block 700, and a cleaning plate 702 is fixedly mounted at the end of the rotating shaft 701. A cleaning brush 703 is bonded and fixed to the outside of the cleaning plate 702, allowing it to closely adhere to the surface of the filter body 300. A third servo motor 704 is fixedly mounted on the outside of the retaining block 704. The output shaft of the third servo motor 704 is fixedly connected to the rotating shaft 701. The servo motor precisely drives the rotating shaft 701 to rotate at high speed, causing the cleaning brush 703 to rotate and brush at a uniform speed. This ensures even bristle adhesion and stable cleaning force, effectively removing various types of adhering dust and impurities from the filter surface, significantly improving surface cleanliness.

[0025] To address the problem that traditional cleaning equipment can only remove surface dust from filters and cannot effectively unclog filter pores, leaving many impurities inside the pores that can reduce filter permeability and decrease purification performance, this equipment is equipped with an intelligent, self-adaptive filter pore cleaning mechanism. The filter pore cleaning mechanism is embedded in the end of the rotating shaft 701, including a second electric telescopic rod 800 fixedly mounted at the end of the rotating shaft 701. A brush rod 801, adapted to the filter pores, is fixedly mounted at the extended end of the second electric telescopic rod 800. Simultaneously, the equipment is equipped with a fiber optic photoelectric sensor 802, which is electrically connected to a PLC intelligent controller 1400. The fiber optic photoelectric sensor 802 accurately identifies the position of the filter pores in real time, transmits the collected data to the controller for analysis and processing, and adaptively controls the extension and retraction of the second electric telescopic rod 800. This causes the brush rod 801 to precisely insert into the filter pores, specifically unclogging impurities and achieving simultaneous surface cleaning and filter pore unclogging, thus comprehensively restoring the filter's permeability.

[0026] To address the problems of traditional filter brushing lacking a dust collection structure, resulting in fine dust easily suspending inside the chamber and re-adhering to the filter surface, leading to incomplete cleaning, and the absence of a drying structure causing the filter to become damp and prone to bacterial growth after cleaning, this equipment incorporates an integrated dust removal and hot air supply switching mechanism. A dust removal mechanism, including a cover-type dust collection hood 900, is fixedly installed on one side of the mounting block 700. The upper end of the dust collection hood 900 is connected to an adapter pipe 905. A vacuum cleaner 901 is fixedly mounted on the outside of the cleaning chamber 100. The vacuum cleaner 901 is connected to the adapter pipe 905 via a suction pipe 902 and a first three-way pipe 904. A first control valve 903 is installed on the suction pipe 902. Simultaneously, a hot air mold assembly 1000 is mounted on the outside of the cleaning chamber 100. The hot air mold assembly 1000 is connected to the first three-way pipe 904 via an air supply pipe 1001. A second control valve 1002 is installed on the air supply pipe 1001. By independently switching between two sets of control valves, the system can switch between negative pressure dust collection and removal during the washing process and hot air drying after cleaning, effectively preventing secondary dust pollution and quickly drying the filter screen to inhibit bacterial growth.

[0027] To address the limitations of traditional dry brushing, which only removes surface dust and fails to clean stubborn stains and sticky impurities adhering to the filter screen, resulting in limited cleaning effectiveness, this equipment incorporates a constant-temperature chemical spray cleaning mechanism. The spray mechanism, including a spray head 1101 adapted to the filter screen body 300, is mounted on the bottom side of the first internal threaded block 603. The spray head 1101 is connected to the piping system via an injection pipe 1100 and a second three-way pipe 1105. A constant-temperature liquid storage tank 1102 is fixedly mounted on the outside of the cleaning box 100. The constant-temperature liquid storage tank 1102 is connected to the second three-way pipe 1105 via a drain pipe 1103 and a third control valve 1104, allowing for a stable output of constant-temperature cleaning solution. This solution is evenly sprayed onto the filter screen surface through the spray head 1101, and combined with the rotating brush, effectively removes stubborn stains, achieving a deep cleaning effect through a combination of wet and dry methods, significantly improving the filter screen cleaning performance.

[0028] To address the problem that traditional filter cleaning only removes dust without disinfection, leading to mold and bacteria growth on filters after long-term use and remaining hygiene risks even after cleaning, thus failing to meet air purification standards, this equipment features a dual-mode sterilization and disinfection mechanism. The equipment integrates a dual structure of chemical spray sterilization and ultraviolet (UV) lamp disinfection. A sterilization liquid tank 1200 is fixedly installed on the outside of the cleaning chamber 100. The sterilization liquid tank 1200 is connected to the second three-way pipe 1105 via an outlet pipe 1201 and a fourth control valve 1202, allowing for independent spraying of sterilization liquid to thoroughly disinfect the filter surface. Simultaneously, an ultraviolet lamp 1300 is fixedly installed on the inner wall of the cleaning chamber 100. The UV lamp 1300 is adapted to the filter body 300, providing continuous UV disinfection to both sides of the filter throughout the cleaning process. This dual disinfection approach thoroughly removes bacteria and mold adhering to the filter, eliminating hygiene risks.

[0029] To address the problems of traditional filter cleaning equipment, such as independent operation of various mechanisms, cumbersome procedures, high difficulty in manual operation, chaotic work sequence, and poor standardization and consistency, this equipment is equipped with a fully automatic PLC intelligent electrical control mechanism. A PLC intelligent controller 1400 is installed on the cleaning box 100. The PLC intelligent controller 1400 is electrically connected to the first servo motor 406, the second servo motor 604, the third servo motor 704, the fourth servo motor 1503, the first electric telescopic rod 501, the second electric telescopic rod 800, the fiber optic photoelectric sensor 802, the ultraviolet lamp 1300, various control valves, and the dust collection, hot air, and spraying equipment. This allows for unified control of the operating sequence and parameters of each mechanism, achieving fully automated and coordinated operation of dust removal, cleaning, unblocking, disinfection, and drying. The operation procedures are standardized, with consistent precision and a high fault tolerance rate.

[0030] The working principle of this invention is as follows: During the air purification filter cleaning operation, the entire process is coordinated and controlled by the PLC intelligent controller 1400, realizing a fully automated closed-loop operation of dry brushing dust removal, filter hole unclogging, constant temperature water washing, sterilization and air drying, and ultraviolet disinfection. In the initial stage of the operation, the sealing cover 200 is manually rotated to open the magnetic adaptive clamping component 401 to both sides, and the L-shaped clamping plates with friction pads on the component are opened in sequence. The filter body 300 to be cleaned is placed vertically and stably in the clamping position. The filter is automatically clamped and fixed by the magnetic attraction between the four clamping plates, so that the filter is stably upright in the center of the turntable 400. Then the sealing cover 200 is closed, so that the cleaning box 100 forms a completely sealed working space, avoiding dust overflow and water splashing during the cleaning process, and ensuring a clean and controllable working environment.

[0031] After sealing, the dry brush dust removal process begins. The PLC intelligent controller 1400 issues a command to start the third servo motor 704, which drives the cleaning plate 702 and cleaning brush 703 to rotate at high speed via the rotating shaft 701. Then, it controls the first electric telescopic rod 501 to extend smoothly, pushing the U-shaped frame 500 to move towards the filter screen side, so that the rotating cleaning brush 703 closely adheres to one side of the filter screen surface. Simultaneously, the vacuum cleaner 901 is started and the first control valve 903 is opened and the second control valve 1002 is closed, entering the negative pressure dust collection mode. At the same time, the second servo motor 604 is started, driving the first reciprocating screw 602 to rotate, which drives the first internal thread block 603 and the cleaning mechanism to reciprocate horizontally, performing a horizontal full-area cleaning of the filter screen surface. During operation, the fiber optic photoelectric sensor 802 identifies the filter hole position in real time, transmits the position data to the controller for processing, and then precisely controls the extension and retraction of the second electric telescopic rod 800. This causes the brush rod 801 to precisely insert into the corresponding filter hole, specifically clearing the accumulated dust and impurities that clog the hole, achieving simultaneous surface cleaning and filter hole clearing. Simultaneously, the cleaning mechanism drives the dust collection hood 900 to collect the dust and impurities removed during cleaning, which are then collected into the vacuum cleaner 901. After completing a single layer of cleaning, the fourth servo motor 1503 starts, driving the second reciprocating screw 1501 to rotate. This causes the drive block 1502 and the vertical moving plate 600 to precisely move down a distance equal to the diameter of a brush, repeating the horizontal reciprocating cleaning process to complete the comprehensive dry brushing of the filter screen from top to bottom.

[0032] After dry brushing on one side, the filter enters a constant-temperature water washing process. The PLC intelligent controller 1400 controls the constant-temperature liquid storage tank 1102 to start, opens the third control valve 1104, and closes the fourth control valve 1202. The warm cleaning solution in the constant-temperature liquid storage tank is delivered to the spray head 1101 through the drain pipe 1103 and the injection pipe 1100, and is evenly sprayed onto the filter screen surface. The cleaning brush and brush stick continue to rotate, deeply brushing the filter screen surface and filter pores while spraying the cleaning solution. The warm cleaning solution dissolves and removes stubborn dirt, greatly improving the cleanliness.

[0033] After one-sided washing is completed, the first electric telescopic rod 501 drives the cleaning mechanism to retract and reset. The PLC intelligent controller 1400 starts the first servo motor 406, which drives the rotating shaft 402 and the turntable 400 to rotate precisely 180° through the worm gear 405 and worm wheel 403, so that the other side of the filter screen that is not cleaned faces the cleaning mechanism. The two processes of dry brushing and constant temperature water washing are repeated to complete the comprehensive deep cleaning of both sides of the filter screen.

[0034] After cleaning both sides, the equipment enters the sterilization and drying process. The equipment switches pipeline status, starts the water pump in the sterilization liquid tank 1200, opens the fourth control valve 1202, and closes the third control valve 1104. The sterilization liquid is evenly sprayed onto the filter screen surface through the spray nozzles for disinfection. Simultaneously, the vacuum cleaner and the first control valve are closed, the hot air module assembly 1000 is started, and the second control valve 1002 is opened. Hot air is evenly blown onto the filter screen surface through the dust collection hood 900, quickly drying the filter screen. After sterilization and drying on one side, the turntable rotates the filter screen 180° again to complete the sterilization and drying of the other side. Throughout the cleaning and disinfection process, the ultraviolet lamp 1300 is continuously turned on, simultaneously disinfecting both sides of the filter screen with ultraviolet light, achieving dual disinfection through liquid spraying and ultraviolet irradiation. After all processes are completed, all mechanisms automatically reset, the ultraviolet lamp is turned off, and the sealed cover can be manually opened to remove the cleaned filter screen. The next filter screen cleaning operation can then begin. The entire process is standardized and thorough, reliably meeting the needs of batch filter screen cleaning.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A brushing device for air purification filters, characterized in that: The cleaning box (100) is hinged to a sealing cover (200) at its top. The bottom of the cleaning box (100) is provided with a rotating mechanism, which includes a turntable (400) rotatably mounted on the inner wall of the bottom side of the cleaning box (100). A magnetic adaptive clamping assembly (401) is provided on the upper side of the turntable (400), and a filter body (300) is provided on the magnetic adaptive clamping assembly (401). The cleaning box (100) is equipped with a fitting mechanism inside, a vertical moving mechanism is installed on the fitting mechanism, a horizontal moving mechanism is installed on the vertical moving mechanism, and a rotary cleaning mechanism is installed on the horizontal moving mechanism. The rotary cleaning assembly includes a retaining block (700) fixedly installed on the horizontal moving mechanism. A rotating shaft (701) is rotatably installed on the retaining block (700). A cleaning plate (702) is fixedly installed at one end of the rotating shaft (701). A cleaning brush (703) is fixedly bonded to the outside of the cleaning plate (702). The cleaning brush (703) is connected to the filter body (300). The fixed block (700) is in contact with the filter screen body (300). A third servo motor (704) is fixedly installed at one end of the fixed block (700). The output shaft of the third servo motor (704) is connected to the other end of the rotating shaft (701). A filter hole cleaning mechanism is embedded at one end of the rotating shaft (701). The filter hole cleaning mechanism includes a second electric telescopic rod (800) fixedly installed at one end of the rotating shaft (701). A brush rod (801) is fixedly installed at the extended end of the second electric telescopic rod (800). The brush rod (801) is adapted to the filter hole on the filter screen body (300). A dust removal mechanism is fixedly installed on one side of the fixed block (700), and an air supply mechanism is installed on the dust removal mechanism. The air supply mechanism is installed on the outside of the cleaning box (100). A spraying mechanism is provided on the bottom side of the translation mechanism. A sterilization mechanism is installed on the spraying mechanism. The sterilization mechanism is installed on the outside of the cleaning box (100). A disinfection mechanism is installed on one inner wall of the cleaning box (100). The disinfection mechanism includes an ultraviolet lamp (1300) installed on one inner wall of the cleaning box (100). The ultraviolet lamp (1300) is adapted to the filter body (300). A PLC intelligent controller (1400) is installed on the cleaning box (100). The PLC intelligent controller (1400) is communicatively connected to the third servo motor (704), the second electric telescopic rod (800), the fiber optic photoelectric sensor (802), and the ultraviolet lamp (1300).

2. The air purification filter brushing device according to claim 1, characterized in that: A rotating shaft (402) is rotatably mounted on the cleaning box (100). The top end of the rotating shaft (402) is fixedly mounted on the bottom side of the turntable (400). A worm gear (403) is fixedly sleeved on the bottom side of the rotating shaft (402). A worm (405) meshes on the worm gear (403). Two positioning blocks (404) are rotatably mounted on the worm (405). Both positioning blocks (404) are fixedly mounted on the cleaning box (100).

3. The air purification filter cleaning device according to claim 2, characterized in that: The cleaning box (100) is fixedly installed with a first servo motor (406). The output shaft of the first servo motor (406) is connected to one end of the worm gear (405). The first servo motor (406) is communicatively connected to the PLC intelligent controller (1400).

4. The air purification filter cleaning device according to claim 1, characterized in that: The bottom inner wall of the cleaning box (100) is fixedly installed with a first electric telescopic rod (501). The extended end of the first electric telescopic rod (501) is fixedly installed on the U-shaped frame (500). The first electric telescopic rod (501) is communicatively connected to the PLC intelligent controller (1400).

5. The air purification filter brushing device according to claim 1, characterized in that: The vertical movement mechanism includes slide grooves (1500) at both ends of the U-shaped frame (500). Drive blocks (1502) are slidably installed on the inner walls of the two slide grooves (1500). A second reciprocating screw (1501) is screwed onto one of the drive blocks (1502). A fourth servo motor (1503) is fixedly installed on one end of the U-shaped frame (500). The output shaft of the fourth servo motor (1503) is connected to the top end of the second reciprocating screw (1501). The fourth servo motor (1503) is communicatively connected to the PLC intelligent controller (1400).

6. The air purification filter brushing device according to claim 5, characterized in that: The translation mechanism includes a vertically fixed vertical plate (600) between two drive blocks (1502). A guide groove (601) is provided on the vertical plate (600). A first reciprocating screw (602) is rotatably mounted on the guide groove (601). A first internal thread block (603) is screwed onto the first reciprocating screw (602). The upper end of the first internal thread block (603) is fixedly mounted on the retaining block (700). The bottom side of the first internal thread block (603) is fixed on the spraying mechanism. A second servo motor (604) is fixedly mounted on one end of the vertical plate (600). The output shaft of the second servo motor (604) is connected to one end of the first reciprocating screw (602). The second servo motor (604) is communicatively connected to the PLC intelligent controller (1400).

7. The air purification filter brushing device according to claim 1, characterized in that: The dust removal mechanism includes a dust collection hood (900) fixedly installed on one side of the fixed block (700). The upper end of the dust collection hood (900) is fixedly connected to a transfer pipe (905). A vacuum cleaner (901) is fixedly installed on the outside of the cleaning box (100). The upper end of the vacuum cleaner (901) is fixedly connected to a suction pipe (902). A first control valve (903) is fixedly sleeved on the suction pipe (902). The other end of the suction pipe (902) is fixedly connected to a first three-way pipe (904). The other end of the first three-way pipe (904) is connected to the other end of the transfer pipe (905). The vacuum cleaner (901) and the first control valve (903) are both connected to the PLC intelligent controller (1400).

8. The air purification filter brushing device according to claim 7, characterized in that: The air supply mechanism includes a hot air mold assembly (1000) fixedly installed on the cleaning box (100). An air supply pipe (1001) is fixedly connected to the bottom side of the hot air mold assembly (1000). A second control valve (1002) is fixedly sleeved on the air supply pipe (1001). The other end of the air supply pipe (1001) is fixedly connected to a first three-way pipe (904). The second control valve (1002) is communicatively connected to a PLC intelligent controller (1400).

9. The air purification filter brushing device according to claim 6, characterized in that: The spraying mechanism includes an injection pipe (1100) fixedly sleeved on the first internal threaded block (603). One end of the injection pipe (1100) is fixedly connected to a spray head (1101). The spray head (1101) is adapted to the filter body (300). A constant temperature storage tank (1102) is fixedly installed on the outside of the cleaning box (100). A drain pipe (1103) is fixedly connected to the constant temperature storage tank (1102). A third control valve (1104) is fixedly sleeved on the drain pipe (1103). A second three-way pipe (1105) is fixedly connected to the other end of the drain pipe (1103). The other end of the second three-way pipe (1105) is fixedly connected to the other end of the injection pipe (1100). The third control valve (1104) is communicatively connected to the PLC intelligent controller (1400).

10. The air purification filter brushing device according to claim 9, characterized in that: The sterilization mechanism includes a sterilization liquid tank (1200) fixedly installed on the cleaning box (100). A liquid outlet pipe (1201) is fixedly connected to the bottom side of the sterilization liquid tank (1200). A fourth control valve (1202) is fixedly sleeved on the liquid outlet pipe (1201). The bottom end of the fourth control valve (1202) is fixedly connected to the second three-way pipe (1105). The fourth control valve (1202) is communicatively connected to the PLC intelligent controller (1400).

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