An air particulate interception screen device

Abstract

The application relates to the technical field of intercepting screen devices, and discloses an air particulate matter intercepting screen device, which comprises a device main body, a filter paper assembly is sleeved with one end of the inside of the device main body, and a purification assembly is sleeved with the other end; a secondary filter box and a primary filter box are sequentially installed between the purification assembly and the filter paper assembly in the inside of the device main body; a filter paper push plate frame is installed between the primary filter box and the filter paper assembly; the filter paper push plate frame and a push plate assembly are mutually welded; a brake assembly is movably sleeved with the outside of the push plate assembly; and the brake assembly is movably connected with a knocking assembly through a rotating shaft. Through the elastic compression self-adapting collocation structure of the air filter paper and the filter paper push plate frame, the new filter paper can be unfolded and the old filter paper can be rolled and replaced by rotating a rotating disc; meanwhile, the first spring in the compressed state drives the corrugated strip to automatically compress the filter paper, so that the filter paper is prevented from shaking to generate a filter gap.

Description

Technical Field

[0001] This invention relates to the field of filter device technology, and more specifically to an air particulate matter interception filter device. Background Technology

[0002] Currently, air particulate matter interception filter devices are widely used in air purification, fresh air systems, industrial dust removal, vehicle air conditioning and clean rooms. Existing filter devices mostly use filter materials such as non-woven fabric, glass fiber, meltblown electret materials, etc., to filter particulate matter such as dust, smoke, and PM2.5 in the air through physical interception, inertial collision, diffusion deposition and electrostatic adsorption. To improve filtration efficiency, existing air particulate matter interception filter devices commonly employ structures such as multi-layer composite structures, pleated expanded area structures, and frame support structures. However, existing technologies generally suffer from problems such as difficulty in balancing filtration efficiency and ventilation resistance, limited dust holding capacity, easy clogging of filters, short service life, and frequent replacement, which affect long-term stable use. Meanwhile, traditional filters primarily function as single-purpose filters, easily accumulating particulate matter and causing secondary pollution. Furthermore, the cumbersome disassembly, cleaning, and replacement processes lead to untimely cleaning and inconvenient replacement, further exacerbating the risk of secondary pollution. These filters fail to meet the demands for high efficiency, low resistance, long lifespan, high reliability, convenient maintenance, and multi-functional integration. Therefore, existing air particulate matter interception filter devices still have room for further improvement and optimization. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an air particulate matter interception filter device to solve the problems existing in the background art.

[0004] This invention provides the following technical solution: an air particulate matter interception filter device, comprising a device body, a filter paper assembly sleeved at one end of the device body, and a purification assembly sleeved at the other end. A secondary filter box and a primary filter box are sequentially installed inside the device body, between the purification assembly and the filter paper assembly. The front and rear sides of the secondary and primary filter boxes are elastically connected to the inner wall of the device body via second springs. A filter paper pusher is installed between the primary filter box and the filter paper assembly. The filter paper pusher is welded and fixed to the pusher assembly. The pusher assembly slides with the device body, and a braking assembly is movably sleeved on the outside of the pusher assembly and engages with it. A knob is installed in the middle of the braking assembly. One end of the knob is connected to the braking assembly, and the other end is rotatably connected to a striking assembly via a second connecting rod. The striking assembly engages with the secondary and primary filter boxes through a concave-convex engagement.

[0005] Furthermore, the filter paper assembly includes a first corrugated frame, a filter paper roll, air filter paper, and a first bolt. Two parallel filter paper rolls are symmetrically fitted into the inner wall groove of the main body of the device. Air filter paper is wound on the surface of both filter paper rolls. The top of the filter paper roll is equipped with a first corrugated frame, and the top of the first corrugated frame is fixedly connected to the main body of the device by the first bolt.

[0006] Furthermore, a turntable is rotatably mounted in the middle of the first corrugated frame, and a conveyor belt is installed inside the first corrugated frame. The two sides of the conveyor belt are respectively connected to the rotating shafts at the top of the two filter paper rolls. The gears on the conveyor belt mesh with the gears inside the first corrugated frame, and the gears on the conveyor belt mesh with the gears at the top of the turntable.

[0007] Furthermore, the purification component includes a rubber plate, a panel, a sealing cap, and a filter frame. A folding handle is installed on the top of the rubber plate, and an interference-fit panel is nested in the bottom groove of the rubber plate. A filter frame with a hollow structure is provided at the bottom of the panel. The filter frame is filled with adsorbent material, and the top of the filter frame is sealed by the sealing cap.

[0008] Furthermore, the filter paper pusher includes a metal frame, a first spring, a corrugated strip, and a first connecting rod. The first spring, welded to the inner wall of the main body of the device, is fixedly connected to the metal frame. The inner side of the metal frame is provided with a rubber corrugated strip for pressing the air filter paper. The two sides of the metal frame are welded to one end of the first connecting rod, and the other end of the first connecting rod is welded and fixed to the pusher assembly.

[0009] Furthermore, the push plate assembly includes a folding rod, rollers, and a metal folding plate. The upper and lower sides of the folding rod are welded with first connecting rods. The upper and lower ends of the folding rod are fitted with rollers that slide in cooperation with the guide rails on the inner wall of the device body. A first connecting auxiliary rod is provided on one side of the folding rod. The surface of the first connecting auxiliary rod is provided with a snap-fit ​​groove. The middle part of the folding rod is rotatably connected to the metal folding plate through a bearing.

[0010] Furthermore, the braking assembly includes a brake outer box, a tilting plate, a plate spring, and a pull rod. The brake outer box is fixed to the inner wall of the main body of the device. The inside of the brake outer box is nested a tilting plate that can move left and right. The tilting plate is adapted to the snap-fit ​​groove of the first connecting auxiliary rod. The tilting plate is connected to the inner wall of the brake outer box through the plate spring. The tilting plate is hinged to the pull rod, and the pull rod is connected to the rotary knob for transmission.

[0011] Furthermore, the knob includes a front turntable, a rear turntable, and a second connecting rod. The front turntable and the rear turntable are nested together and are independently rotating structures. A handle is welded to the surface of the front turntable, and the back of the front turntable is connected to a pull rod by bolts. A screw hole is opened on the surface of the rear turntable, and the back of the rear turntable is connected to the second connecting rod by bolts. The end of the second connecting rod away from the rear turntable is rotatably connected to the striking assembly.

[0012] Furthermore, the striking assembly includes a U-shaped rod, a sliding track, and an arc-shaped protrusion. Both sides of the secondary filter box and the primary filter box are equipped with concave-convex plates. The concave-convex structure of the concave-convex plates is adapted to and impacts the arc-shaped protrusion on the side of the U-shaped rod. The inner wall of the main body of the device is fixed with a sliding track. The outside of the U-shaped rod is sleeved in the sliding track and reciprocates along it. The U-shaped rod is rotatably connected to the second connecting rod. The side of the U-shaped rod is equipped with an arc-shaped protrusion made of rubber.

[0013] Furthermore, the main body of the device has folding plate storage slots on both sides for storing metal folding plates. The outer wall of the folding plate storage slots is fitted with storage slot baffles connected by snaps. The bottom of the main body of the device has a slot, and a dust collection plate is fitted inside the slot. The dust collection plate is detachably fixed to the bottom of the main body of the device by a second bolt.

[0014] The technical effects and advantages of this invention are as follows: 1. This invention employs an automatic filter paper roll rewinding system for efficient filter replacement. The device, through the cooperation of the filter paper roll and conveyor belt, automatically rewinds used filter paper while simultaneously unfolding new filter paper. This eliminates the need to disassemble the entire structure, making operation convenient and efficient. It avoids the tedious process of manually replacing filter paper, significantly reducing maintenance costs, while ensuring a standardized and orderly filter paper replacement process and guaranteeing stable filtration performance.

[0015] 2. This invention improves filtration stability by combining vibration cleaning with dust isolation. The filter box and filter surface are cleaned by vibration through the driving knocking component. At the same time, the centrifugal force generated by the vibration shakes off the dust and impurities adsorbed on the surface, avoiding dust accumulation that affects filtration efficiency. It also reduces the frequency of manual cleaning and further ensures the long-term stable operation of the device.

[0016] 3. This invention operates in a fully automated manner and is suitable for use in multiple scenarios. The device is driven by a motor to achieve functions such as automatic filter paper winding, automatic dust isolation, and vibration cleaning, without the need for frequent manual intervention. This not only improves the accuracy of airborne particulate matter interception but also enables the device to operate continuously and stably, adapting to different ventilation and filtration scenarios and meeting diverse usage needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the installation structure of the filter paper assembly and purification assembly of the present invention.

[0019] Figure 3 This is a schematic diagram of the dust collection plate installation structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the folded plate storage groove structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the purification component structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the filter paper assembly structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the internal structure of the main body of the device of the present invention.

[0024] Figure 8 This is a schematic diagram of the pusher assembly structure of the present invention.

[0025] Figure 9 This is a schematic diagram of the braking component structure of the present invention.

[0026] Figure 10 This is a schematic diagram of the striking component structure of the present invention.

[0027] Figure 11 This is a schematic diagram of the secondary filter box and the primary filter box of the present invention.

[0028] Figure 12 This is a schematic diagram of the air filter paper clamping structure of the present invention.

[0029] The attached figures are labeled as follows: 1. Main body of the device; 2. Filter paper assembly; 3. Purification assembly; 4. Secondary filter box; 5. Primary filter box; 6. Filter paper pusher frame; 7. Pusher assembly; 8. Braking assembly; 9. Striking assembly; 10. Rotary knob; 11. First connecting rod; 101. First corrugated frame; 102. Filter paper roll; 103. Air filter paper; 104. First bolt; 105. Conveyor belt; 106. Actuating disc; 301. Rubber plate; 302. Panel; 303. Sealing cover; 304. Filter frame; 305. Folding handle; 401. Front turntable; 402. Rear turntable; 403, Second connecting rod; 501, U-shaped rod; 502, Sliding rail; 503, Arc-shaped protrusion; 504, Second spring; 505, Concave-convex plate; 601, Metal frame; 602, First spring; 603, Corrugated strip; 604, First connecting rod; 701, Folding plate rod; 702, Roller; 703, Metal folding plate; 801, Brake outer box; 802, Inclined clamping plate; 803, Clamping plate spring; 804, Pull rod; 901, Folding plate storage slot; 902, Storage slot baffle; 903, Slot; 904, Dust collection plate; 905, Second bolt. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The air particulate matter interception filter device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-12This invention provides an air particulate matter interception filter device, including a device body 1. After the device body 1 is installed in a designated ventilation position, air enters from one side of the filter paper assembly 2, first intercepting large particles in the air through the filter paper assembly 2, and then sequentially passing through a primary filter box 5 and a secondary filter box 4 for progressively fine filtration to remove fine impurities; finally, the activated carbon inside the purification assembly 3 adsorbs odors in the filtered gas, and the purified air is discharged from the other end of the device body 1. When the device is used for a long time, the filtration effect of the filter paper assembly 2 decreases, or a large amount of dust is adsorbed on the surface of the secondary filter box 4 and the primary filter box 5, the push plate assembly... Component 7 pulls the filter paper pusher 6 towards the primary filter box 5. The first connecting rod 11 on the pusher assembly 7 enters the braking assembly 8 and achieves braking positioning. At this time, the old air filter paper 103 can be collected by rolling the filter paper roll 102 and the new air filter paper 103 can be moved to the working position to realize the automatic replacement of the air filter paper. After the filter paper is replaced, the knob 10 is rotated to release the brake. Then, the external motor drives the knob 10 to rotate. The knob 10 drives the striking assembly 9 to strike and vibrate the secondary filter box 4 and the primary filter box 5, shaking off the dust adsorbed on their surfaces and ensuring the long-term stable operation of the device.

[0032] In a preferred embodiment, the first corrugated frame 101 is a continuous corrugated frame structure with evenly spaced ventilation openings to ensure normal airflow. The edge of the first corrugated frame 101 is tightly fitted with the edge of the filter paper pusher frame 6, and the edge height of the filter paper pusher frame 6 is greater than the edge height of the first corrugated frame 101. When the two work together to hold the air filter paper 103, they form a circumferential seal, preventing unfiltered air from entering the device through edge gaps. Guide grooves are provided on both the upper and lower sides of the filter paper pusher frame 6 to accommodate the filter paper. The reciprocating movement of the push plate frame 6 provides guidance and limitation. The internal and external height difference structure can further prevent dust and unfiltered air from flowing in from the edge gaps. A corrugated strip 603 is welded to the center of the filter paper push plate frame 6. When clamping and fixing the air filter paper 103, it can position and stabilize the filter paper, preventing the filter paper from shifting or wrinkling. When the filter paper roll 102 needs to be inspected or replaced as a whole, the first corrugated frame 101 and the filter paper roll 102 can be taken out from the main body 1 of the device by unscrewing the first bolt 104. The operation is simple and efficient.

[0033] In a preferred embodiment, the operator can drive the actuation disk 106 to rotate via a motor. The actuation disk 106, through gear transmission, drives the gears inside the first corrugated frame 101 to rotate synchronously with the conveyor belt 105. The conveyor belt 105 further drives the rotating shafts on both sides of the filter paper assembly 2 to rotate synchronously with the filter paper rolls 102. One filter paper roll 102 rewinds and stores the used air filter paper 103, while the other filter paper roll 102 smoothly lays new air filter paper 103 on the surface of the first corrugated frame 101, and then... The filter paper pusher 6 and the first corrugated frame 101 are pressed together to form a stable corrugated filter surface for the air filter paper 103. The contact position between the filter paper pusher 6 and the first corrugated frame 101 and the slotted position where the air filter paper 103 is wound and unwound at the filter paper roll 102 are misaligned to further improve the sealing effect and clamping stability, and prevent unfiltered air from bypassing and leaking. Compared with the prior art, this structure can store multiple usable sections of air filter paper 103 at one time, and can be automatically replaced multiple times after one disassembly and replacement.

[0034] In a preferred embodiment, when the adsorption capacity of the adsorbent material decreases after a period of use, the operator can pull the rubber plate 301 out of the device body 1 by folding the handle 305, then remove the sealing cover 303 from the filter frame 304, pour out the waste adsorbent material, put in new adsorbent material, reinstall the sealing cover 303 and the insert plate 302, and finally reconnect the entire purification assembly 3 back into the device body 1. The operation is convenient and can ensure a continuous and stable purification effect.

[0035] In a preferred embodiment, when the air filter paper 103 experiences a decline in filtration efficiency due to prolonged use and requires replacement, the entire machine can be moved without disassembling. The push plate assembly 7 pulls the metal frame 601 towards the primary filter box 5 via the first connecting rod 604. The first spring 602 is further compressed, and the corrugated strip 603 separates from the air filter paper 103, releasing the pressure and facilitating quick filter paper replacement. During the movement of the metal frame 601, the first spring 602 is compressed and stored. After the air filter paper 103 is replaced, the pulling action of the first connecting rod 604 is released, and the elastic stored force of the first spring 602 is released, pushing the metal frame 601 and the first corrugated frame 101 to re-close tightly. This also causes the corrugated strip 603 to tightly press the air filter paper 103, keeping the filter paper flat and in good contact. This ensures that air passes through the filter paper evenly, preventing gaps caused by filter paper shaking and resulting in unfiltered air flowing through, thus ensuring a stable and reliable filtration effect.

[0036] In a preferred embodiment, the operator first pushes up the storage slot baffle 902 to open the folding plate storage slot 901. Then, the metal folding plate 703 is rotated 90 degrees around the bearing so that it is at a right angle to the folding plate rod 701. At this time, the operator holds the metal folding plate 703 and pushes it towards the purification component 3, causing the folding plate rod 701 and the first connecting rod 604 to move synchronously. This pulls the filter paper pusher 6 towards the primary filter box 5, releasing the pressure on the air filter paper 103 and facilitating filter paper replacement. After replacement, the operator pushes the metal folding plate 703 in the opposite direction to reset the filter paper pusher 6. Then, the operator rotates and folds the metal folding plate 703 into the folding plate storage slot 901 and closes the storage slot baffle 902 to prevent the metal folding plate 703 from affecting airflow and to save internal space of the device.

[0037] In a preferred embodiment, when the folding rod 701 is pushed to move towards the purification component 3, the first connecting rod 11 moves synchronously with the folding rod 701 and inserts into the hole of the brake outer box 801. When it moves to the designated position, the clamping spring 803 pushes the inclined clamping plate 802 into the groove of the first connecting rod 11, thereby braking and positioning the pusher assembly 7. This prevents the first spring 602 from resetting the filter paper pusher frame 6 due to its elastic force, ensuring that the operator has sufficient time to replace the air filter paper 103. After replacement, the knob 10 is rotated to pull the lever 804, causing the inclined clamping plate 802 to move towards the center and disengage from the groove of the first connecting rod 11, releasing the brake. The filter paper pusher frame 6 automatically resets under the elastic force of the first spring 602, re-pressing the air filter paper 103.

[0038] In a preferred embodiment, when operating the brake switch, the operator can drive the knob 10 and the front turntable 401 to rotate using a dual-rotor motor. When the front turntable 401 rotates, it drives the pull rod 804 to move downward with the rotation angle, pulling the tilting plate 802 away from the first connecting auxiliary rod 11, thereby releasing the brake. When performing vibration cleaning, a bolt drill or screwdriver is connected to the screw hole of the rear turntable 402 to drive the rear turntable 402 to rotate, which in turn drives the U-shaped rod 501 to reciprocate through the second connecting rod 403, thus achieving vibration cleaning. The two operations are independent of each other and do not interfere with each other, significantly improving the ease of use and maintenance efficiency of the device.

[0039] In a preferred embodiment, the rotary table 402 is rotated by a bolt drill, which drives the second connecting rod 403 to move, thereby causing the U-shaped rod 501 to reciprocate within the sliding track 502. The arc-shaped protrusion 503 on the side of the U-shaped rod 501 impacts the concave-convex plate 505. The arc-shaped protrusion 503 has a wave-like structure, causing the U-shaped rod 501 to impact the secondary filter box 4 and the primary filter box 5 at different frequencies during the reciprocating motion. The secondary filter box 4 and the primary filter box 5 generate high-frequency vibration under the elastic support of the second spring 504, shaking off the dust adsorbed on the filter screen, realizing the self-cleaning function. Cleaning can be completed without disassembling the filter box, improving the convenience of use.

[0040] In a preferred embodiment, when the operator performs filter paper replacement or filter screen cleaning, they can push up the storage slot baffle 902 to open the folding plate storage slot 901, rotate the metal folding plate 703 to perform the operation, and after the operation is completed, fold the metal folding plate 703 into the folding plate storage slot 901 and close the storage slot baffle 902. During the vibration cleaning process, the dust shaken off falls from the surface of the secondary filter box 4 and the primary filter box 5 under the action of gravity and falls into the dust collection plate 904 for collection. When the dust in the dust collection plate 904 accumulates to a certain amount, the operator can unscrew the second bolt 905, pull the dust collection plate 904 out of the slot 903 and clean the dust. After cleaning, the dust collection plate 904 is inserted into the slot 903 and fixed with the second bolt 905. The operation is convenient and effectively avoids secondary air pollution from dust.

[0041] Although the invention has been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these inventions without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0042] 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 this invention only involve structures related to this invention. Other structures can be referred to with common designs. In the absence of conflict, the same invention and different inventions of this invention can be combined with each other. Finally: 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. An air particulate matter interception filter device, comprising a device body (1), characterized in that: The device body (1) has a filter paper assembly (2) sleeved at one end and a purification assembly (3) sleeved at the other end. A secondary filter box (4) and a primary filter box (5) are sequentially installed inside the device body (1) between the purification assembly (3) and the filter paper assembly (2). The front and rear sides of both the secondary filter box (4) and the primary filter box (5) are elastically connected to the inner wall of the device body (1) via a second spring (504). A filter paper pusher (6) is installed between the primary filter box (5) and the filter paper assembly (2). The push plate frame (6) is welded and fixed to the push plate assembly (7). The push plate assembly (7) is slidably fitted to the main body (1) of the device. The external part of the push plate assembly (7) is movably fitted with a braking assembly (8) that is compatible with it. A rotating knob (10) is installed in the middle of the braking assembly (8). One end of the rotating knob (10) is connected to the braking assembly (8) in a transmission manner, and the other end is rotatably connected to the striking assembly (9) through the second connecting rod (403). The striking assembly (9) is compatible with the secondary filter box (4) and the primary filter box (5) in a concave-convex collision fit.

2. The air particulate matter interception filter device according to claim 1, characterized in that: The filter paper assembly (2) includes a first corrugated frame (101), a filter paper roll (102), an air filter paper (103), and a first bolt (104). Two parallel filter paper rolls (102) are symmetrically fitted in the groove of the inner wall of the device body (1). The air filter paper (103) is wound on the surface of the two filter paper rolls (102). The first corrugated frame (101) is installed on the top of the filter paper roll (102). The top of the first corrugated frame (101) is fixedly connected to the device body (1) by the first bolt (104).

3. The air particulate matter interception filter device according to claim 2, characterized in that: A dial (106) is rotatably mounted in the middle of the first corrugated frame (101). A conveyor belt (105) is installed inside the first corrugated frame (101). The two sides of the conveyor belt (105) are respectively connected to the rotating shafts at the top of the two filter paper rolls (102). The gears on the conveyor belt (105) mesh with the gears inside the first corrugated frame (101), and the gears on the conveyor belt (105) mesh with the gears at the top of the dial (106).

4. The air particulate matter interception filter device according to claim 1, characterized in that: The purification component (3) includes a rubber plate (301), a panel (302), a sealing cap (303), and a filter frame (304). A folding handle (305) is installed on the top of the rubber plate (301). An interference fit panel (302) is nested in the bottom groove of the rubber plate (301). A hollow filter frame (304) is provided at the bottom of the panel (302). The filter frame (304) is filled with adsorbent material, and the top of the filter frame (304) is sealed by the sealing cap (303).

5. The air particulate matter interception filter device according to claim 1, characterized in that: The filter paper pusher frame (6) includes a metal frame (601), a first spring (602), a corrugated strip (603) and a first connecting rod (604). The first spring (602) welded to the inner wall of the main body (1) of the device is fixedly connected to the metal frame (601). The corrugated strip (603) for pressing the air filter paper (103) is installed on the inner side of the metal frame (601). The two sides of the metal frame (601) are welded to one end of the first connecting rod (604), and the other end of the first connecting rod (604) is welded and fixed to the pusher assembly (7).

6. The air particulate matter interception filter device according to claim 1, characterized in that: The push plate assembly (7) includes a folding rod (701), a roller (702) and a metal folding plate (703). The upper and lower sides of the folding rod (701) are welded with first connecting rods (604). The upper and lower ends of the folding rod (701) are fitted with rollers (702) that slide in cooperation with the guide rail on the inner wall of the main body (1). A first connecting auxiliary rod (11) is provided on one side of the folding rod (701). The surface of the first connecting auxiliary rod (11) is provided with a snap-fit ​​groove. The middle part of the folding rod (701) is rotatably connected to the metal folding plate (703) through a bearing.

7. The air particulate matter interception filter device according to claim 6, characterized in that: The braking assembly (8) includes a brake outer box (801), a tilting plate (802), a plate spring (803), and a pull rod (804). The brake outer box (801) is fixed to the inner wall of the main body (1) of the device. The brake outer box (801) is nested with a tilting plate (802) that can move left and right. The tilting plate (802) is adapted to the snap-fit ​​groove of the first connecting auxiliary rod (11). The tilting plate (802) is connected to the inner wall of the brake outer box (801) through the plate spring (803). The tilting plate (802) is hinged to the pull rod (804). The pull rod (804) is connected to the rotary knob (10) for transmission.

8. The air particulate matter interception filter device according to claim 7, characterized in that: The knob (10) includes a front turntable (401), a rear turntable (402) and a second connecting rod (403). The front turntable (401) and the rear turntable (402) are connected to each other and are independently rotating structures. The surface of the front turntable (401) is welded with a handle, and the back of the front turntable (401) is connected to the pull rod (804) by bolts. The surface of the rear turntable (402) is provided with screw holes, and the back of the rear turntable (402) is connected to the second connecting rod (403) by bolts. The end of the second connecting rod (403) away from the rear turntable (402) is rotatably connected to the striking assembly (9).

9. An air particulate matter interception filter device according to claim 8, characterized in that: The striking component (9) includes a U-shaped rod (501), a sliding rail (502), and an arc-shaped protrusion (503). The two sides of the secondary filter box (4) and the primary filter box (5) are equipped with concave-convex plates (505). The concave-convex structure of the concave-convex plate (505) is adapted to the concave-convex structure of the arc-shaped protrusion (503) on the side of the U-shaped rod (501) and impacts it. The inner wall of the main body (1) of the device is fixed with a sliding rail (502). The outside of the U-shaped rod (501) is sleeved in the sliding rail (502) and moves back and forth along it. The U-shaped rod (501) is rotatably connected to the second connecting rod (403). The side of the U-shaped rod (501) is equipped with an arc-shaped protrusion (503) made of rubber.

10. An air particulate matter interception filter device according to claim 1, characterized in that: The main body (1) of the device has folding plate storage slots (901) on both sides for storing metal folding plates (703). The outer wall of the folding plate storage slots (901) is equipped with storage slot baffles (902) connected by snap fasteners. The bottom of the main body (1) of the device has a slot (903). A dust collection plate (904) is sleeved inside the slot (903). The dust collection plate (904) is detachably fixed to the bottom of the main body (1) of the device by a second bolt (905).

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