Air filtering equipment for environmental protection
By designing automated filtration components, the problems of air filtration equipment clogging and tedious manual cleaning are solved, achieving efficient and stable air filtration effects suitable for various application scenarios.
Patent Information
- Application Number
- CN202511025423.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2025-11-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing air filtration equipment is prone to clogging after prolonged operation, leading to decreased filtration efficiency, increased energy consumption, and reliance on manual cleaning which is cumbersome and can easily cause secondary pollution. In particular, it may cause equipment failure in highly polluted environments.
A filter assembly was designed, including a filter box, a negative pressure motor, a threaded rod, a motor-driven cleaning block, and a toothed belt, to achieve automated cleaning of the filter screen, centralized collection of impurities to prevent scattering, and improved filtration efficiency and equipment stability.
It enables convenient and efficient cleaning of filter materials, extends service life, reduces maintenance difficulty, maintains stable filtration efficiency, and reduces energy consumption, making it suitable for home, commercial, and industrial scenarios.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to the field of environmental protection technology, and specifically to an air filtration device for environmental protection. Background Technology
[0002] Air filtration equipment for environmental protection mainly refers to devices used to remove particulate matter, harmful gases, and other pollutants from the air, aiming to improve air quality and protect the environment and human health. These devices are widely used in industrial emission control, indoor air purification, and air quality maintenance in specific environments.
[0003] Existing air filtration equipment typically uses filter screens or other porous filter materials to intercept and purify particulate matter, dust, and impurities in the air during operation. These filter materials effectively remove pollutants from the air, thereby improving air quality. However, during long-term operation, as impurities accumulate in the air, the surface and internal pores of the filter material gradually become clogged, leading to decreased filtration efficiency and increased airflow resistance. This, in turn, affects the overall operating performance and energy consumption of the equipment. Currently, most air filtration equipment still relies on manual periodic disassembly and cleaning of filter screens or replacement of filter media for maintenance. This traditional cleaning method is not only cumbersome and time-consuming, but also easily causes impurities to scatter during the cleaning process, making them difficult to collect and handle, and posing a risk of secondary pollution. More seriously, in some high-pollution load or continuously operating industrial environments, failure to clean clogged filter media in a timely manner can lead to reduced airflow, pressure imbalance, and even equipment failure or shutdown, affecting production efficiency and air quality control effectiveness. Summary of the Invention
[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an air filtration device for environmental protection. This device effectively solves the problem that existing air filtration devices often rely on filter screens or other materials to intercept impurities in the air, but these screens are prone to clogging after prolonged use, leading to decreased filtration efficiency and increased energy consumption. Currently, manual cleaning or replacement of filter media is the primary method, which is cumbersome and prone to causing secondary pollution. In high-pollution or continuous operation environments, untimely cleaning can also cause equipment malfunctions, affecting production and air quality control.
[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an air filtration device for environmental protection, including a filter box. A duct is connected to the top of the filter box, and a negative pressure motor is installed inside the duct. Air outlet pipes are connected to both the left and right sides of the filter box. A filter assembly is provided on the surface of the filter box. The filter assembly includes a first mounting frame and two operating boxes. Several round rods are rotatably connected to the inner cavity of each operating box. The bottom end of each round rod extends to the outer side of the bottom of the operating box and is fixedly connected to a round rod. Two symmetrically arranged telescopic rods are fixedly connected to the bottom of each round rod. A filter component is slidably connected to the inner cavity of the filter box. A cleaning block that contacts the top of the filter component is fixedly connected to the output end of each telescopic rod.
[0006] Furthermore, a protective box is fixedly connected to the rear side of the filter box, a threaded rod is rotatably connected to the inner cavity of the protective box, and a first motor is fixedly connected to the inner cavity of the protective box. The output shaft of the first motor is fixedly connected to the right end of the threaded rod.
[0007] Furthermore, the surface of the threaded rod is threadedly connected to a threaded block, and the surface of the threaded block is slidably connected to the inner cavity of the first mounting frame. A connecting rod is fixedly connected to the left side of the threaded block. The left end of the connecting rod extends through to the outside of the first mounting frame and is fixedly connected to a push rod. The right end of the push rod extends through to the inner cavity of the filter box and is fixedly connected to the left side of the operating box.
[0008] Furthermore, a second motor is fixedly connected to the inner cavity of the running box, the output shaft of the second motor is fixedly connected to the top end of the round rod, a first gear is fixedly connected to the outer surface of the round rod, a toothed belt is driven to the outer surface of the first gear, a disc is fixedly connected to the bottom end of the round rod, and a spring damper is installed on the bottom of the disc and the side opposite to the cleaning block.
[0009] Furthermore, the inner cavity of the filter box is slidably connected to the surface of the filter component, and fixing plates are fixedly connected to both the left and right sides of the inner cavity of the filter box.
[0010] Furthermore, a spring is connected to the top of the fixing plate, and the top of the spring is connected to the bottom of the filter component.
[0011] Furthermore, the bottom left and right sides of the filter component are fixedly connected to first abutments, the left and right sides of the inner cavity of the protective box are rotatably connected to long rods, the surfaces of the four long rods are connected to first pulleys through a common transmission, the several first pulleys are connected through belt transmission, and the surfaces of the long rods are fixedly connected to several second abutments that cooperate with the first abutments.
[0012] Furthermore, a rotating rod is provided through the inner cavity of the protective box. Two meshing bevel gears are fixedly connected to the surfaces of the long rod and the rotating rod, respectively. Second pulleys are installed on the surfaces of the rotating rod and the threaded rod, and the two second pulleys are connected by belt drive.
[0013] Furthermore, a second mounting frame is fixedly connected to the bottom of the rear side of the filter box, a protective rod is fixedly connected to the left side of the filter box, a running rod is provided through the inner cavity of the protective rod, the rear end of the running rod passes through the inner cavity of the second mounting frame and is fixedly connected to a second gear, and a welding plate is fixedly connected to the bottom of the threaded block.
[0014] Furthermore, a toothed plate that meshes with the second gear is fixedly connected to the side of the connecting plate away from the threaded block. Running discs are provided on both the front and rear sides of the inner cavity of the protective rod. The front end of the running rod is fixedly connected to the rear side of the running disc. A moving rod is connected to the surface of the running disc. A push plate is fixedly connected to the right end of the moving rod. Beneficial effects
[0015] The technical solution provided by this invention has the following advantages compared with known prior art: By setting up a filter assembly, a centralized cleaning function for the filter screen and other filter materials is achieved. This filter assembly allows impurities to be uniformly collected in a specific area during the interception of dust, particulate matter, and other impurities in the air, avoiding the problem of impurities being dispersed and attached inside the equipment or scattered randomly. Operation is convenient and efficient, significantly reducing maintenance difficulty and labor intensity. Furthermore, this filter assembly helps extend the service life of the filter material, reducing frequent replacements due to clogging, while maintaining stable filtration efficiency and reducing wind resistance and energy consumption.
[0016] Furthermore, the filter assembly effectively improves the airflow within the chamber, further accelerating the airflow speed during the filtration process, thereby enhancing overall filtration efficiency. Simultaneously, this filter assembly helps accelerate the discharge of filtered gas, preventing gas stagnation or slow flow at the bottom of the chamber, which could lead to accumulation. By enhancing airflow circulation and discharge capabilities, not only is the equipment's purification efficiency improved, but internal resistance is also reduced, making the entire filtration process more efficient and stable. This makes it suitable for long-term continuous operation environments. Overall, the filter assembly not only improves the ease of use of the equipment but also enhances air purification effects and operational stability, making it suitable for various applications in homes, businesses, and industries. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a rear-view perspective view of the overall structure of the present invention; Figure 3 This is a three-dimensional schematic diagram of the first mounting frame structure in a disassembled state according to the present invention; Figure 4 This is a front cross-sectional view of the filter box structure of the present invention; Figure 5 This is a front perspective three-dimensional schematic diagram of the filter component structure of the present invention; Figure 6 This is a three-dimensional schematic diagram of the operating box structure of the present invention; Figure 7 This is a three-dimensional side view sectional view of the operating box structure of the present invention; Figure 8 This is a three-dimensional schematic diagram of the toothed belt structure of the present invention; Figure 9 This is a three-dimensional schematic diagram of the disk structure of the present invention; Figure 10 This is a three-dimensional schematic diagram of the operating disk structure of the present invention.
[0019] Reference numerals: 1. Filter box; 2. Air duct; 3. Negative pressure motor; 4. Air outlet pipe; 5. Filter assembly; 51. First mounting frame; 52. Protective box; 53. Threaded rod; 54. First motor; 55. Threaded block; 56. Connecting rod; 57. Push rod; 58. Running box; 59. Second motor; 510. Round rod; 511. First gear; 512. Toothed belt; 513. Disc; 514. Telescopic rod; 515. Cleaning block; 516. Spring damper 517. Fixed plate; 518. Spring; 519. Filter component; 520. First abutment plate; 521. Long rod; 522. First pulley; 523. Rotating rod; 524. Bevel gear; 525. Second pulley; 526. Second abutment plate; 527. Second mounting frame; 528. Protective rod; 529. Running rod; 530. Moving rod; 531. Push plate; 532. Running plate; 533. Second gear; 534. Welded plate; 535. Toothed plate. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0021] The present invention will be further described below with reference to embodiments.
[0022] See attached document Figure 1-10 An air filtration device for environmental protection includes a filter box 1, with a duct 2 connected to the top of the filter box 1. A negative pressure motor 3 is installed inside the duct 2. Air outlet pipes 4 are connected to both the left and right sides of the filter box 1. One-way valves are installed on the surface of the air outlet pipes 4 to prevent backflow of gas. A filter assembly 5 is provided on the surface of the filter box 1. The filter assembly 5 includes a first mounting frame 51 and two operating boxes 58. The surface of the first mounting frame 51 is fixedly connected to the rear side of the filter box 1. Several round rods 510 are rotatably connected to the inner cavity of the operating box 58. The bottom end of the round rods 510 extends to the outer side of the bottom of the operating box 58 and is fixedly connected to the round rods 510. The area of the round rods 510 in contact with the operating box 58 is rotatably connected by a sealed bearing. Two symmetrically arranged telescopic rods 514 are fixedly connected to the bottom of the round rods 510. A filter component 519 is slidably connected to the inner cavity of the filter box 1.
[0023] See attached document Figure 2-10The output end of the telescopic rod 514 is fixedly connected to a cleaning block 515 that contacts the top of the filter component 519. The filter component 519 is composed of air purification materials such as filter screens or activated carbon plates. A door is hinged to the front of the filter box 1 to facilitate the user to remove impurities from the filter component 519 after centralized cleaning. The cleaning blocks 515 are composed of cleaning materials such as brushes, and several cleaning blocks 515 fit together precisely. A protective box 52 is fixedly connected to the rear of the filter box 1. The protective box 52 is H-shaped. A threaded rod 53 is rotatably connected to the inner cavity of the protective box 52, and the surface of the threaded rod 53 is provided with external threads. A first motor 54 is fixedly connected to the inner cavity of the protective box 52. The output shaft of the first motor 54 is fixedly connected to the right end of the threaded rod 53. A threaded block 55 is threadedly connected to the surface of the threaded rod 53. The area where the threaded block 55 contacts the threaded rod 53 is provided with a matching internal thread. The surface of the threaded block 55 is slidably connected to the inner cavity of the first mounting frame 51. A connecting rod 56 is fixedly connected to the left side of the threaded block 55. The left end of the connecting rod 56 passes through to the outside of the first mounting frame 51 and is fixedly connected to a push rod 57. The right end of the push rod 57 passes through to the inner cavity of the filter box 1 and is fixedly connected to the left side of the running box 58. The running box 58 is slidably connected to the inner cavity of the filter box 1. An inclined plate is provided on the surface of the running box 58. A second motor 59 is fixedly connected to the inner cavity of the running box 58. The output shaft of the second motor 59 is fixedly connected to the top end of the round rod 510. A first gear 511 is fixedly connected to the outer surface of the round rod 510. A toothed belt 512 is driven to the outer surface of the first gear 511. The toothed belt 512 is tensioned. A disc 513 is fixedly connected to the bottom end of the round rod 510. A spring damper 516 is installed on the bottom of the disc 513 and the opposite side of the cleaning block 515.
[0024] See attached document Figure 3-10 The inner cavity of the filter box 1 is slidably connected to the surface of the filter component 519. Fixing plates 517 are fixedly connected to both the left and right sides of the inner cavity of the filter box 1. A spring 518 is connected to the top of the fixing plate 517. The top of the spring 518 is connected to the bottom of the filter component 519. First abutment plates 520 are fixedly connected to both the left and right sides of the bottom of the filter component 519. Long rods 521 are rotatably connected to both the left and right sides of the inner cavity of the protective box 52. The surfaces of the four long rods 521 are connected to a first pulley 522 via a belt drive. Several first pulleys 522 are connected via a belt drive. Several second abutment plates 526, which cooperate with the first abutment plates 520, are fixedly connected to the surface of the long rods 521. A rotating rod 523 is provided through the inner cavity of the protective box 52. Two meshing bevel gears 524 are fixedly connected to the surfaces of the long rods 521 and the rotating rod 523 respectively. Second pulleys 525 are installed on the surfaces of the rotating rod 523 and the threaded rod 53 respectively, and the two second pulleys 525 are connected via a belt drive.
[0025] See attached document Figure 5-10 A second mounting frame 527 is fixedly connected to the bottom rear side of the filter box 1. A protective rod 528 is fixedly connected to the left side of the filter box 1. A running rod 529 is provided through the inner cavity of the protective rod 528. The area of the running rod 529 in contact with the protective rod 528 is rotatably connected by a bearing. The rear end of the running rod 529 extends into the inner cavity of the second mounting frame 527 and is fixedly connected to a second gear 533. A welding plate 534 is fixedly connected to the bottom of the threaded block 55. Both the bottom of the second mounting frame 527 and the first mounting frame 51 have solid cavities. A positioning cavity is provided on the rear side of the second mounting frame 527. The fixing cavity and the positioning cavity are used in conjunction with the welding plate 534. The welding plate 534 is L-shaped. A toothed plate 535, meshing with the second gear 533, is fixedly connected to the side away from the threaded block 55. The bottom of the toothed plate 535 is connected to a caster wheel that contacts the ground, facilitating its movement. Running discs 532 are provided on both the front and rear sides of the inner cavity of the protective rod 528. The front end of the running rod 529 is fixedly connected to the rear side of the running disc 532, while the other running disc 532 is rotatably connected to the protective rod 528. A moving rod 530 is connected to the surface of the running disc 532, and a pusher plate 531 is fixedly connected to the right end of the moving rod 530. A cavity is opened on the right side of the inner cavity of the protective rod 528 to cooperate with the pusher plate 531, facilitating the pusher plate 531 to push gas through the filter box 1. The pusher plate 531 also cooperates with the outlet pipe 4 and the filter box 1.
[0026] Specifically, when the negative pressure motor 3 starts, it draws air from the external environment into the filter box 1 for purification. When the air passes through the filter component 519, impurities are effectively intercepted and filtered, and the purified air is discharged back into the external environment through the exhaust pipe 4.
[0027] To ensure filtration efficiency, the first motor 54 can be started. The first motor 54 drives the threaded rod 53 and the second pulley 525 to rotate, thereby driving the threaded block 55 to move left and right along the threaded rod 53. The threaded block 55 drives the running box 58 to reciprocate synchronously through the connecting rod 56 and the push rod 57.
[0028] Then, the second motor 59 is started, which drives the round rod 510 to rotate, thereby driving the first gear 511 and the toothed belt 512 to work together. At the same time, the round rod 510 drives the disc 513 to rotate, and the disc 513 drives the cleaning block 515 to rotate through the telescopic rod 514 and the spring damper 516, so as to efficiently clean the surface of the filter component 519.
[0029] Immediately following the rotation of the threaded rod 53, the second pulley 525 also rotates. This power is transmitted to the long rods 521 through the bevel gear 524, causing all four long rods 521 to rotate synchronously. The long rods 521 drive the first pulley 522 to rotate, which in turn drives the second abutment plate 526 to rotate. When the second abutment plate 526 rotates and contacts the first abutment plate 520, it pushes the filter element 519 to move up and down. During this process, the elasticity of the spring 518 generates vibration, further assisting in removing impurities attached to the filter element 519. Finally, the user can open the door to centrally clean the impurities in the filter box 1 for convenient use.
[0030] Furthermore, as the threaded block 55 moves, it drives the welding plate 534 to move synchronously, and the welding plate 534 further drives the toothed plate 535 to move together. During the movement, the toothed plate 535 meshes with the second gear 533 and drives it to rotate. The second gear 533 drives the running rod 529 to rotate synchronously, and the running rod 529 then drives the running disc 532 to rotate. The running disc 532 causes the moving rod 530 to reciprocate through mechanical linkage. The moving rod 530 then drives the push plate 531 to reciprocate synchronously, thus forming a piston movement process. This can effectively accelerate the flow rate of gas inside the filter box 1, improve the overall working efficiency of air filtration, and enhance the discharge efficiency of filtered air through the piston-like reciprocating action, further optimizing the purification performance of the equipment.
[0031] The filter element 519 is cleaned, which effectively improves air filtration efficiency and equipment operation stability, facilitates long-term and efficient filtration of air pollutants, improves overall air quality, and is easy to use.
[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.
Claims
1. An air filtration device for environmental protection, characterized in that, The filter box (1) is connected to a duct (2) at the top. A negative pressure motor (3) is installed in the inner cavity of the duct (2). Air outlet pipes (4) are connected to both the left and right sides of the filter box (1). A filter assembly (5) is provided on the surface of the filter box (1). The filter assembly (5) includes a first mounting frame (51) and two running boxes (58). Several round rods (510) are rotatably connected to the inner cavity of the running box (58). The bottom end of the round rod (510) extends to the outside of the bottom of the running box (58) and is fixedly connected to the round rod (510). Two telescopic rods (514) are fixedly connected to the bottom of the round rod (510). A filter component (519) is slidably connected to the inner cavity of the filter box (1). A cleaning block (515) that contacts the top of the filter component (519) is fixedly connected to the output end of the telescopic rod (514).
2. The air filtration device for environmental protection according to claim 1, characterized in that, A protective box (52) is fixedly connected to the rear side of the filter box (1). A threaded rod (53) is rotatably connected to the inner cavity of the protective box (52). A first motor (54) is fixedly connected to the inner cavity of the protective box (52). The output shaft of the first motor (54) is fixedly connected to the right end of the threaded rod (53).
3. An air filtration device for environmental protection according to claim 2, characterized in that, The threaded rod (53) has a threaded block (55) threadedly connected to its surface, and the surface of the threaded block (55) is slidably connected to the inner cavity of the first mounting frame (51). A connecting rod (56) is fixedly connected to the left side of the threaded block (55). The left end of the connecting rod (56) extends through to the outside of the first mounting frame (51) and is fixedly connected to a push rod (57). The right end of the push rod (57) extends through to the inner cavity of the filter box (1) and is fixedly connected to the left side of the running box (58).
4. An air filtration device for environmental protection according to claim 1, characterized in that, The inner cavity of the running box (58) is fixedly connected to a second motor (59). The output shaft of the second motor (59) is fixedly connected to the top end of the round rod (510). The outer surface of the round rod (510) is fixedly connected to a first gear (511). The outer surface of the first gear (511) is connected to a toothed belt (512). The bottom end of the round rod (510) is fixedly connected to a disc (513). The bottom of the disc (513) and the side opposite to the cleaning block (515) are both equipped with a spring damper (516).
5. An air filtration device for environmental protection according to claim 1, characterized in that, The inner cavity of the filter box (1) is slidably connected to the surface of the filter component (519), and a fixing plate (517) is fixedly connected to both the left and right sides of the inner cavity of the filter box (1).
6. An air filtration device for environmental protection according to claim 5, characterized in that, A spring (518) is connected to the top of the fixing plate (517), and the top of the spring (518) is connected to the bottom of the filter component (519).
7. An air filtration device for environmental protection according to claim 2, characterized in that, The filter component (519) has a first abutment plate (520) fixedly connected to the left and right sides of its bottom. The protective box (52) has a long rod (521) rotatably connected to the left and right sides of its inner cavity. The surfaces of the four long rods (521) are connected to a first pulley (522) for transmission. Several first pulleys (522) are connected by belt transmission. Several second abutments (526) that cooperate with the first abutment plate (520) are fixedly connected to the surface of the long rod (521).
8. An air filtration device for environmental protection according to claim 7, characterized in that, The inner cavity of the protective box (52) is provided with a rotating rod (523). The surfaces of the long rod (521) and the rotating rod (523) are respectively fixedly connected with two meshing bevel gears (524). The surfaces of the rotating rod (523) and the threaded rod (53) are respectively equipped with second pulleys (525), and the two second pulleys (525) are connected by belt drive.
9. An air filtration device for environmental protection according to claim 3, characterized in that, A second mounting frame (527) is fixedly connected to the bottom of the rear side of the filter box (1). A protective rod (528) is fixedly connected to the left side of the filter box (1). A running rod (529) is provided through the inner cavity of the protective rod (528). The rear end of the running rod (529) extends through the inner cavity of the second mounting frame (527) and is fixedly connected to a second gear (533). A welding plate (534) is fixedly connected to the bottom of the threaded block (55).
10. An air filtration device for environmental protection according to claim 9, characterized in that, The welding plate (534) is fixedly connected to a toothed plate (535) that meshes with the second gear (533) on the side away from the threaded block (55). The front and rear sides of the inner cavity of the protective rod (528) are provided with running discs (532). The front end of the running rod (529) is fixedly connected to the rear side of the running disc (532). The surface of the running disc (532) is connected to a moving rod (530). The right end of the moving rod (530) is fixedly connected to a push plate (531).