Spliced air filter

Abstract

The invention relates to the field of air filtration, in particular to a spliced air filter, and aims to solve the problem that the overall efficiency of a system is affected due to the fact that large air resistance is easily generated in a high-speed airflow environment. The spliced air filter comprises a shell, and a carrying frame is fixedly connected to the interior of the shell; filtering frames are fixedly connected to the top end and the bottom end of the inner side of the carrying frame, and detachable filtering plates are arranged in the two filtering frames; the concentration frame is fixedly connected between the two filtering frames, a guide assembly is assembled in the middle of the concentration frame, and a flow slowing assembly is assembled on one side of the interior of the shell and used for being matched with the guide assembly to reduce high-speed airflow resistance. The filter paper has the advantages that in the high-speed airflow environment, the extrusion head makes contact with the filter paper body, the middle of the filter paper body is raised, high-speed airflow is buffered, resistance generated when the high-speed airflow passes through is reduced, and the overall filtering efficiency is guaranteed.

Description

Technical Field

[0001] This application relates to the field of air filtration, and more particularly to a modular air filter. Background Technology

[0002] With the increasing severity of air pollution, air filters are widely used in industry and construction, their function being to capture dust from gas-solid two-phase flows. They purify air with low dust content before delivering it indoors, ensuring the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms. With technological advancements, the requirements for the efficiency and resistance performance of air filters are becoming increasingly stringent. These are specialized environmental protection equipment for pollution control and other purposes. However, most air filters on the market are single-structure filter elements, which are prone to generating significant air resistance in high-speed airflow environments, affecting the overall efficiency of the system. In recent years, researchers have begun to explore ways to improve the performance of air filters through structural optimization, but most solutions still suffer from problems such as complex structures, high costs, or inconvenient installation, and therefore require further improvement. Summary of the Invention

[0003] In order to improve the overall purification efficiency of the system, which is prone to large air resistance in high-speed airflow environments, this application provides a modular air filter.

[0004] The modular air filter provided in this application adopts the following technical solution: A modular air filter, comprising: The housing has a mounting frame fixedly connected inside, and filter frames are fixedly connected to the top and bottom of the inner side of the mounting frame. Each of the two filter frames has a detachable filter plate inside. A centralized frame is fixedly connected between two filter frames. A guide component is installed in the middle of the centralized frame, and a flow-slowing component is installed on one side inside the housing. The flow-slowing component is used to work with the guide component to reduce the resistance of high-speed airflow.

[0005] By adopting the above technical solution, the housing is fixed inside the ventilation duct. When there is high-speed airflow inside the ventilation duct, the flow-slowing component is raised by the guiding component to reduce the wind resistance when the high-speed airflow passes through, thereby ensuring the application effect of the filter plate.

[0006] Optionally, the guiding component includes: A transmission cylinder A is fixedly connected to the middle of the central frame. A displacement rod A is slidably connected to one end of the transmission cylinder A. A pressing head is fixedly connected to one end of the displacement rod A. A piston A is fixedly connected to the end of the displacement rod A located inside the transmission cylinder A. A helical spring A is fixedly connected between the piston A and the transmission cylinder A. Transmission cylinder B is fixedly connected to one side of the central frame, and the end of transmission cylinder A near transmission cylinder B is connected to transmission cylinder B. One end of transmission cylinder B is slidably connected to displacement rod B, and the end of displacement rod B located inside transmission cylinder B is fixedly connected to piston B. A locking element is assembled on the side of the housing near the displacement rod B, and is used to lock the position of the displacement rod B when it is not in use.

[0007] By adopting the above technical solution, the position of piston B inside transmission cylinder B is changed by displacement rod B, and the gas inside transmission cylinder B is guided to transmission cylinder A, thereby changing the position of piston A inside transmission cylinder A, and thus adjusting the position of extrusion head to provide stable power for the bulging of the slow flow component.

[0008] Optionally, the flow-slowing component includes: A flow-slowing frame, wherein extension frames are fixedly connected to both ends of one side of the flow-slowing frame, and an assembly plate is fixedly connected to the end of the extension frame away from the flow-slowing frame at an incline, and a locking rod is fixedly connected to the end of the assembly plate away from the extension frame. The filter paper body has an elastic band fixedly connected to its edge, and the slow-flow frame has an assembly cavity inside, with the elastic band fixedly connected inside the assembly cavity. A stabilization component is assembled at both ends of the central frame to cooperate with the assembly cavity to lock the position of the flow-retarding frame.

[0009] By adopting the above technical solution, the filter paper body is assembled with the help of the assembly cavity and elastic band, so that the extrusion head can drive the filter paper body to undergo adaptive deformation during the contact process with the filter paper body, thereby forming a centrally raised structure. After the extrusion head is separated from the filter paper body, it can pull the filter paper body under the action of the elastic band, causing the filter paper body to return to its initial state.

[0010] Optionally, the stabilization component includes: Two guide slide rods are slidably connected to both ends of the central frame. Each guide slide rod has a push plate fixedly connected to one end inside the central frame. A helical spring B is fixedly connected between the push plate and the central frame. A guide frame is fixedly connected to one end of a push plate, and a baffle is fixedly connected to the end of the guide frame away from the push plate. The pressure block is fixedly connected to one side of the push plate. The pressure block is provided with a pressure ramp, a receiving groove and a locking groove. The receiving groove is located at the end of the pressure ramp, the locking groove is located at the end of the receiving groove, and the locking rod is engaged with the locking groove. Two extension ears are fixedly connected to both ends of one side of the central frame. A mounting rod is fixedly connected to the middle of the extension ear. A stabilizing plate is fixedly connected to the outer side of the mounting rod. A clamping plate is fixedly connected to the end of the stabilizing plate away from the mounting rod, and the clamping plate is also clamped to the extension frame. The linkage plate is fixedly connected to the end of the stabilizing plate away from the card plate. A linkage through groove is opened in the middle of the linkage plate. An assembly ear is fixedly connected to the middle of one side of the baffle, and the bottom of the assembly ear is also movably connected to the inside of the linkage through groove.

[0011] By adopting the above technical solution, as the slow-flow frame approaches the centralized frame, pressure can be applied to the pressure block through the locking rod, and finally the position of the locking rod can be locked with the slot. During the adjustment of the slot, the filter plate can be blocked by the controllable adjustment of the baffle to prevent the filter plate from moving uncontrollably inside the filter frame. The controllable flipping of the stabilizing plate can also be used to position the extension frame with the slot plate to prevent the slow-flow frame from shaking uncontrollably.

[0012] Optionally, the locking element includes: A stop cylinder is fixedly connected to the side of the housing near the displacement rod B, and the displacement rod B is also slidably connected inside the stop cylinder. A storage cylinder is fixedly connected to the top of the stop cylinder. A transmission screw, wherein the transmission screw is vertically threaded inside the transmission screw, and a stop block is fixedly connected to one end of the transmission screw located inside the storage cylinder.

[0013] By adopting the above technical solution, the stop block can be vertically adjusted by means of the transmission screw. In this way, the sliding resistance of the displacement rod B is increased through the close contact between the stop block and the displacement rod B, thus preventing the displacement rod B from undergoing uncontrollable adjustment.

[0014] Optionally, multiple sealing grooves are provided on the outer sides of both piston A and piston B, and a sealing ring is fitted inside each sealing groove.

[0015] By adopting the above technical solution, the sealing ring is mounted on the sealing groove. During the sliding process of piston A and piston B, the sealing ring can be squeezed by the inner walls of transmission cylinder A and transmission cylinder B, causing the sealing ring to deform. After piston A and piston B are adjusted, the sealing ring can be restored to achieve dynamic sealing of transmission cylinder A and transmission cylinder B, preventing uncontrollable gas flow inside transmission cylinder A and transmission cylinder B.

[0016] Optionally, a locking ring is rotatably connected to the outer side of the locking rod, and a wear-resistant pad is provided on the locking ring.

[0017] By adopting the above technical solution, when the locking rod is pressed against the pressure slope, it can drive the locking ring to rotate adaptively on the pressure slope, making the overall assembly smoother. In addition, with the setting of wear-resistant pads, the wear of the locking ring when it is displaced at the pressure slope can be reduced, effectively ensuring the service life of the locking ring.

[0018] Optionally, a retainer is fixedly connected to one side of the central frame, and the retainer has a mounting hole, through which the transmission cylinder B passes.

[0019] By adopting the above technical solution, the presence of the cage can provide auxiliary support for the transmission cylinder B, ensuring the stability of the transmission cylinder B during application.

[0020] Optionally, a linkage rod is fixedly connected to the bottom end of the mounting ear, and the linkage rod is also movably connected inside the linkage slot.

[0021] By adopting the above technical solution, during the process of the assembly ear following the displacement of the baffle, the linkage rod can be driven to make adaptive movements inside the linkage slot, thereby pushing the linkage plate and causing the linkage plate to drive the stabilizing plate and the clamping plate to rotate.

[0022] Optionally, the card plate is arc-shaped, and the end of the extension frame away from the flow control frame is provided with a locking groove, and the card plate is also snapped into the inside of the locking groove.

[0023] By adopting the above technical solution and utilizing the structural characteristics of the card plate, the card plate can be screwed into the locking groove when it rotates with the stabilizing plate. When the card plate is screwed into the locking groove, the position of the extension frame can be locked.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the structural cooperation of the guiding component and the flow-retarding component, the middle part of the filter paper body is raised by the contact between the extrusion head and the filter paper body in the environment of high-speed airflow, thereby buffering the high-speed airflow and reducing the resistance when the high-speed airflow passes through, thus ensuring the overall filtration efficiency.

[0025] 2. By combining the locking rod and the stabilizing components, the stability of the filter paper body can be ensured, and the slow-flow frame can be quickly separated from the shell when the filter paper body is not performing well. This greatly improves the efficiency of disassembling and assembling the filter paper body, making the whole process more convenient. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a modular air filter according to an embodiment of this application.

[0027] Figure 2This is an exploded view of a modular air filter according to an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the separate structure of the mounting frame and the filter frame in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the structure of the guide component in an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the assembly structure of the extrusion head according to an embodiment of this application.

[0031] Figure 6 This is a schematic diagram of the assembly structure of the stop block according to an embodiment of this application.

[0032] Figure 7 This is a schematic diagram of the structure of the flow-retarding component in an embodiment of this application.

[0033] Figure 8 This is a schematic diagram of the assembly structure of the locking rod according to an embodiment of this application.

[0034] Figure 9 This is a schematic diagram of the structure of the stabilization component in an embodiment of this application.

[0035] Figure 10 This is a schematic diagram of the assembly structure of the pressure block in an embodiment of this application.

[0036] Figure 11 This is a partial enlarged view of embodiment A of this application.

[0037] Figure 12 This is a schematic diagram of the separate structure of the guide slide and the push plate in an embodiment of this application.

[0038] Figure 13 This is a schematic diagram of the raised structure of the filter paper body in an embodiment of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Mounting frame; 3. Filter frame; 4. Filter plate; 5. Central frame; 6. Guide assembly; 7. Flow control assembly; 8. Transfer cylinder A; 9. Displacement rod A; 10. Extrusion head; 11. Piston A; 12. Helical spring A; 13. Transfer cylinder B; 14. Displacement rod B; 15. Piston B; 16. Stop cylinder; 17. Receiving cylinder; 18. Drive screw; 19. Stop block; 20. Flow control frame; 21. Extension frame; 22. Assembly plate; 23. Locking rod; 24. Assembly cavity; 25. Filter paper body; 26. Elastic band; 27. Stabilizing component; 28. Guide slide rod; 29. ​​Push plate; 30. Helical spring B; 31. Guide frame; 32. Baffle; 33. Pressure block; 34. Pressure ramp; 35. Receiving groove; 36. Slot; 37. Extension ear; 38. Mounting rod; 39. Stabilizing plate; 40. Locking plate; 41. Linkage plate; 42. Linkage through groove; 43. Assembly ear; 44. Linkage rod; 45. Locking groove. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-13 This application will be described in further detail.

[0041] This application discloses a modular air filter. (See also...) Figure 1 A modular air filter includes: The housing 1 has a mounting frame 2 fixedly connected inside it. The top and bottom of the mounting frame 2 are fixedly connected to the top and bottom of the inner side of the mounting frame 2. The two filter frames 3 are each provided with a detachable filter plate 4. A central frame 5 is fixedly connected between two filter frames 3. A guide component 6 is installed in the middle of the central frame 5, and a flow-slowing component 7 is installed on one side inside the housing 1. The flow-slowing component 7 is used to cooperate with the guide component 6 to reduce the resistance of high-speed airflow.

[0042] Reference Figure 3 The filter frame 3 has a mesh opening on one side. The mesh opening can block one side of the filter plate 4 without affecting the airflow. In this embodiment, the filter plate 4 is made of activated carbon to ensure the filtration effect of the filter plate 4.

[0043] The housing 1 is fixed inside the ventilation duct. When there is high-speed airflow inside the ventilation duct, the guide component 6 raises the flow-slowing component 7 to reduce the wind resistance when the high-speed airflow passes through, thereby ensuring the application effect of the filter plate 4.

[0044] Reference Figure 4 and Figure 5 Bootstrap component 6 includes: A transfer cylinder A8 is fixedly connected to the middle of the central frame 5. A displacement rod A9 is slidably connected to one end of the transfer cylinder A8, and a pressing head 10 is fixedly connected to one end of the displacement rod A9. A piston A11 is fixedly connected to the end of the displacement rod A9 located inside the transfer cylinder A8, and a helical spring A12 is fixedly connected between the piston A11 and the transfer cylinder A8. The pressing head 10 is conical. Through the structural characteristics of the pressing head 10, it can smoothly contact the filter paper body 25, causing the filter paper body 25 to undergo stable deformation.

[0045] The transmission cylinder B13 is fixedly connected to one side of the centralized frame 5, and the end of the transmission cylinder A8 near the transmission cylinder B13 is connected to the transmission cylinder B13. One end of the transmission cylinder B13 is slidably connected to the displacement rod B14, and the end of the displacement rod B14 located inside the transmission cylinder B13 is fixedly connected to the piston B15. A locking element is assembled on the side of the housing 1 near the displacement rod B14 to lock the position of the displacement rod B14 when it is not in use. Reference Figure 9 In this embodiment, a retainer is fixedly connected to one side of the central frame 5, and an installation hole is provided on the retainer. The transmission cylinder B13 is also inserted inside the installation hole.

[0046] The cage provides auxiliary support for the transmission cylinder B13, preventing uncontrollable shaking during application and greatly ensuring the stability of the transmission cylinder B13 during use.

[0047] Reference Figure 4 In this embodiment, multiple sealing grooves are provided on the outer sides of both piston A11 and piston B15, and a sealing ring is fitted inside each sealing groove. By fitting the sealing ring into the sealing groove, the gaps between piston A11 and transmission cylinder A8, and between piston B15 and transmission cylinder B13, can be sealed after piston A11 and piston B15 are displaced, forming a dynamic seal between transmission cylinder A8 and transmission cylinder B13, and preventing uncontrolled gas flow inside transmission cylinder A8 and transmission cylinder B13. The sealing ring can be made of rubber.

[0048] Reference Figure 6 In this embodiment, the locking element includes: The stop cylinder 16 is fixedly connected to the side of the housing 1 near the displacement rod B14, and the displacement rod B14 is also slidably connected inside the stop cylinder 16. The top of the stop cylinder 16 is fixedly connected to the storage cylinder 17. The transmission screw 18 is vertically threaded inside the transmission screw 18, and a stop block 19 is fixedly connected to one end of the transmission screw 18 inside the receiving cylinder 17.

[0049] After the displacement rod B14 is adjusted, the transmission screw 18 is rotated to cause the stop block 19 to move in the direction of the displacement rod B14 until the stop block 19 is in close contact with the surface of the displacement rod B14, thereby increasing the resistance when the displacement rod B14 is adjusted and preventing the displacement rod B14 from sliding uncontrollably.

[0050] In this embodiment, a rubber pad is fixedly connected to the bottom end of the stop block 19. By setting the rubber pad, the friction force when the stop block 19 contacts the displacement rod B14 can be effectively increased.

[0051] Reference Figure 8 The flow control component 7 includes: The flow-slowing frame 20 has extension frames 21 fixedly connected to both ends on one side. An assembly plate 22 is fixedly connected to the end of the extension frame 21 away from the flow-slowing frame 20 at an angle. A locking rod 23 is fixedly connected to the end of the assembly plate 22 away from the extension frame 21.

[0052] Reference Figure 2 A feedback plate is fixedly connected to the top of the housing 1. By setting the feedback plate, when the flow-slowing frame 20 moves into the housing 1 and comes into contact with the feedback plate, the feedback plate will block the flow-slowing frame 20, thereby providing feedback to the personnel that the flow-slowing frame 20 has reached the assembly position.

[0053] The slow-flow assembly 7 also includes: a filter paper body 25, an elastic band 26 fixedly connected to the edge of the filter paper body 25, and an assembly cavity 24 opened inside the slow-flow frame 20, with the elastic band 26 fixedly connected inside the assembly cavity 24.

[0054] Stabilization component 27 is assembled at both ends of the central frame 5 and is used to lock the position of the slow-flow frame 20 in conjunction with the assembly cavity 24.

[0055] Reference Figure 8 In this embodiment, a locking ring is rotatably connected to the outer side of the locking rod 23, and a wear-resistant pad is provided on the locking ring. By providing the locking ring, when the locking rod 23 is adjusted at the pressure slope 34, the locking ring can be driven to rotate adaptively on the pressure slope 34, making the assembly of the locking rod 23 smoother. Furthermore, the wear-resistant pad greatly reduces the wear of the locking ring as it rotates on the pressure slope 34, resulting in a smoother overall operation.

[0056] In this embodiment, the filter paper body 25 is made of ultrafine glass fiber, synthetic fiber or ceramic fiber as the main material, and is made by wet web forming, hot rolling or gluing reinforcement, to capture dust and smoke particles of 0.3µm to 10µm to ensure clean air supply.

[0057] In summary, when facing high-speed airflow, firstly, the transmission screw 18 is rotated, coordinating with the connection between the transmission screw 18 and the receiving cylinder 17, allowing the transmission screw 18 to unscrew from the receiving cylinder 17. This, in turn, causes the stop block 19 to move away from the displacement rod B14, reducing the sliding resistance of the displacement rod B14. Subsequently, the displacement rod B14 is pushed, changing the position of the piston B15 inside the transmission cylinder B13, so that the gas inside the transmission cylinder B13 is transferred to the inside of the transmission cylinder A8. The gas entering the transmission cylinder A8 will push the piston A11, causing the displacement rod A9 to drive the extrusion head 10 closer to the filter paper body 25. As the displacement rod A9 continues to adjust, it will push the filter paper body 25 through the extrusion head 10, causing the filter paper body 25 to bulge in the middle under the support of the elastic band 26, as... Figure 13 As shown, when the subsequent high-speed airflow passes through the raised filter paper body 25, the airflow can be buffered by the filter paper body 25, thereby ensuring the overall application effect. Reference Figure 9 The stabilization component 27 includes: Two guide slide rods 28 are slidably connected to both ends of the centralized frame 5. A push plate 29 is fixedly connected to one end of each guide slide rod 28 inside the centralized frame 5. A helical spring B30 is fixedly connected between the push plate 29 and the centralized frame 5. In this embodiment, to enable personnel to easily operate the displacement rod B14, transmission screw 18, and guide slide rod 28 from outside the ventilation duct, the displacement rod B14, storage cylinder 17, and guide slide rod 28 are all located outside the ventilation duct.

[0058] Reference Figure 9 In this embodiment, a force-bearing knob is fixedly connected to one end of the guide slide rod 28 located outside the central frame 5, and an anti-slip sleeve is fixedly connected to the force-bearing knob. The force-bearing knob provides a gripping space for the person's hand, so as to facilitate the person to pull the guide slide rod 28. Guide frame 31 is fixedly connected to one end of push plate 29, and baffle 32 is fixedly connected to the end of guide frame 31 away from push plate 29. The pressure block 33 is fixedly connected to one side of the push plate 29. The pressure block 33 is provided with a pressure ramp 34, a receiving groove 35 and a locking groove 36. The receiving groove 35 is located at the end of the pressure ramp 34, the locking groove 36 is located at the end of the receiving groove 35, and the locking rod 23 is engaged with the locking groove 36. Two extension ears 37 are fixedly connected to both ends of one side of the central frame 5. A mounting rod 38 is fixedly connected to the middle of the extension ear 37. A stabilizing plate 39 is fixedly connected to the outer side of the mounting rod 38. A locking plate 40 is fixedly connected to the end of the stabilizing plate 39 away from the mounting rod 38, and the locking plate 40 is also locked to the extension frame 21. Linkage plate 41 is fixedly connected to the end of the stabilizing plate 39 away from the card plate 40. A linkage through groove 42 is provided in the middle of the linkage plate 41. A mounting ear 43 is fixedly connected to the middle of one side of the baffle 32, and the bottom of the mounting ear 43 is also movably connected to the inside of the linkage through groove 42. In summary, during the displacement of the slow-flow frame 20, the locking rod 23 will reach the pressure slope 34 and compress the pressure slope 34. In conjunction with the structural characteristics of the pressure slope 34, it can drive the pressure block 33 and the push plate 29 to move under the limit of the guide slide rod 28, and pull the baffle 32 through the baffle 32, causing the baffle 32 to move from the edge of the mounting frame 2 towards the filter plate 4. When the locking rod 23 reaches the end of the pressure slope 34, the locking rod 23 will enter the receiving groove 35 and be adjusted along the receiving groove 35. Reference Figure 8 In this embodiment, the locking plate 40 is arc-shaped, and the end of the extension frame 21 away from the flow control frame 20 is provided with a locking groove 45, and the locking plate 40 is also snapped into the inside of the locking groove 45. Due to the structural characteristics of the locking plate 40, when the locking plate 40 is rotated along with the stabilizing plate 39, it can be screwed into the inside of the locking groove 45, and the position of the extension frame 21 can be locked when the locking plate 40 is screwed into the locking groove 45.

[0059] Reference Figure 11 In this embodiment, a linkage rod 44 is fixedly connected to the bottom end of the mounting ear 43, and the linkage rod 44 is also movably connected inside the linkage slot 42. Through the linkage rod 44, during the adjustment of the mounting ear 43, the linkage rod 44 can be adjusted inside the linkage slot 42, thereby causing the stabilizing plate 39 to rotate via the linkage plate 41.

[0060] The implementation principle of a spliced ​​air filter in this application embodiment is as follows: First, the housing 1 is fixed inside the ventilation duct. Then, the slow-flow frame 20 is moved out of the housing 1 and pushed to move towards the mounting frame 2. During the movement of the slow-flow frame 20, the locking rod 23 will reach the pressure slope 34 and squeeze the pressure slope 34. With the structural characteristics of the pressure slope 34, the pressure block 33 and the push plate 29 can be moved under the limit of the guide slide rod 28. The baffle 32 is pulled by the baffle 32, causing the baffle 32 to move from the edge of the mounting frame 2 towards the filter plate 4. When the locking rod 23 reaches the end of the pressure slope 34, the locking rod 23 will enter the receiving groove 35 and be adjusted along the receiving groove 35. Furthermore, since the helical spring B30 is located between the central frame 5 and the push plate 29, it can stretch the helical spring B30 during the displacement of the push plate 29. When the locking rod 23 reaches the end of the receiving groove 35, since the receiving groove 35 is no longer restricted by the locking rod 23, it can pull the slot 36 closer to the locking rod 23 through the pressure block 33, and finally lock the locking rod 23 inside the slot 36. At the same time, the baffle 32 will reach the end of the filter plate 4 to block the filter plate 4 and prevent it from moving out of the filter frame 3. Furthermore, during the adjustment of the baffle 32, the linkage rod 44 can move inside the linkage slot 42. Since the linkage plate 41 is supported by the stabilizing plate 39, during the movement of the linkage rod 44, the linkage plate 41 can be pushed, causing the stabilizing plate 39 to drive the baffle 32 to rotate. When the locking rod 23 reaches the slot 36, the locking plate 40 will be engaged in the locking slot 45, thereby forming the stop lock of the extension frame 21. When the airflow passes through the filter paper body 25, the airflow can be initially filtered by the filter paper body 25. The gas after initial filtration will enter the housing 1 and be filtered again by the filter plate 4 before being sent to the designated location. Furthermore, when facing high-speed airflow, the transmission screw 18 is first rotated, coordinating with the connection between the transmission screw 18 and the receiving cylinder 17, allowing the transmission screw 18 to unscrew from the receiving cylinder 17. This, in turn, causes the stop block 19 to move away from the displacement rod B14, reducing the sliding resistance of the displacement rod B14. Subsequently, the displacement rod B14 is pushed, changing the position of the piston B15 inside the transmission cylinder B13, so that the gas inside the transmission cylinder B13 is transferred to the inside of the transmission cylinder A8. The gas entering the transmission cylinder A8 will push the piston A11, causing the displacement rod A9 to drive the extrusion head 10 closer to the filter paper body 25. As the displacement rod A9 continues to adjust, it will push the filter paper body 25 through the extrusion head 10, causing the filter paper body 25 to bulge in the middle under the support of the elastic band 26, as... Figure 13 As shown, when the subsequent high-speed airflow passes through the raised filter paper body 25, the airflow can be buffered by the filter paper body 25, thereby ensuring the overall application effect. When the filter paper body 25 needs to be replaced, push the guide slide 28 to move the push plate 29 until the locking rod 23 moves out of the slot 36 and into the receiving slot 35. Then pull the slow flow frame 20 outward to remove it from the housing 1. Then the filter paper body 25 can be replaced. After the locking rod 23 is released from the pressure block 33, the helical spring B30 will rebound further, causing the baffle 32 to reach the edge of the mounting frame 2 and no longer block the filter plate 4. Then the filter plate 4 can be removed from the filter frame 3 for replacement. In summary, the beneficial effects of this application are as follows: By combining the structure of the guide component 6 and the flow-retarding component 7, the middle part of the filter paper body 25 can be raised through the contact between the squeeze head 10 and the filter paper body 25 in a high-speed airflow environment, thereby buffering the high-speed airflow and reducing the resistance when the high-speed airflow passes through, thus ensuring the overall filtration efficiency.

[0061] By combining the locking rod 23 and the stabilizing component 27, the stability of the filter paper body 25 can be ensured, and the slow-flow frame 20 can be quickly separated from the housing 1 when the filter paper body 25 is not performing well. This greatly improves the efficiency of disassembling and assembling the filter paper body 25 and makes the whole process more convenient.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular air filter, characterized in that: include: The housing (1) has a mounting frame (2) fixedly connected inside. The top and bottom of the mounting frame (2) are fixedly connected to filter frames (3). The two filter frames (3) are each provided with a detachable filter plate (4). A central frame (5) is fixedly connected between two filter frames (3). A guide component (6) is assembled in the middle of the central frame (5). A flow-slowing component (7) is assembled on one side inside the housing (1). The flow-slowing component (7) is used to cooperate with the guide component (6) to reduce the resistance of high-speed airflow.

2. The modular air filter according to claim 1, characterized in that: The boot component (6) includes: A transmission cylinder A (8) is fixedly connected to the middle of the central frame (5). A displacement rod A (9) is slidably connected to one end of the transmission cylinder A (8). A pressing head (10) is fixedly connected to one end of the displacement rod A (9). A piston A (11) is fixedly connected to one end of the displacement rod A (9) inside the transmission cylinder A (8). A helical spring A (12) is fixedly connected between the piston A (11) and the transmission cylinder A (8). Transmission cylinder B (13) is fixedly connected to one side of the central frame (5), and the end of transmission cylinder A (8) near transmission cylinder B (13) is connected to transmission cylinder B (13). One end of transmission cylinder B (13) is slidably connected to displacement rod B (14), and the end of displacement rod B (14) located inside transmission cylinder B (13) is fixedly connected to piston B (15). A locking element is fitted on the side of the housing (1) near the displacement rod B (14) to lock the position of the displacement rod B (14) in the non-use state.

3. The modular air filter according to claim 1, characterized in that: The flow control component (7) includes: The slow-flow frame (20) has extension frames (21) fixedly connected to both ends on one side. An assembly plate (22) is fixedly connected to the end of the extension frame (21) away from the slow-flow frame (20) at an incline. A locking rod (23) is fixedly connected to the end of the assembly plate (22) away from the extension frame (21). The filter paper body (25) has an elastic band (26) fixedly connected to its edge. The slow-flow frame (20) has an assembly cavity (24) inside, and the elastic band (26) is fixedly connected inside the assembly cavity (24). Stabilization component (27) is assembled at both ends of the central frame (5) and is used to lock the position of the slow-flow frame (20) in conjunction with the assembly cavity (24).

4. A modular air filter according to claim 3, characterized in that: The stabilization component (27) includes: Two guide slide rods (28) are slidably connected to both ends of the central frame (5). One end of each guide slide rod (28) located inside the central frame (5) is fixedly connected to a push plate (29). A helical spring B (30) is fixedly connected between the push plate (29) and the central frame (5). A guide frame (31) is fixedly connected to one end of a push plate (29), and a baffle (32) is fixedly connected to the end of the guide frame (31) away from the push plate (29). The pressure block (33) is fixedly connected to one side of the push plate (29). The pressure block (33) is provided with a pressure ramp (34), a receiving groove (35) and a slot (36). The receiving groove (35) is located at the end of the pressure ramp (34), and the slot (36) is located at the end of the receiving groove (35). The locking rod (23) is engaged with the slot (36). Two extension ears (37) are fixedly connected to the two ends of one side of the central frame (5). A mounting rod (38) is fixedly connected to the middle of the extension ear (37). A stabilizing plate (39) is fixedly connected to the outside of the mounting rod (38). A clamping plate (40) is fixedly connected to the end of the stabilizing plate (39) away from the mounting rod (38). The clamping plate (40) is also clamped to the extension frame (21). Linkage plate (41), which is fixedly connected to the end of the stabilizing plate (39) away from the card plate (40), has a linkage through groove (42) in the middle of the linkage plate (41), and an assembly ear (43) is fixedly connected to the middle of one side of the baffle (32), and the bottom of the assembly ear (43) is also movably connected to the inside of the linkage through groove (42).

5. A modular air filter according to claim 2, characterized in that: The locking element includes: Stop cylinder (16), the stop cylinder (16) is fixedly connected to the side of the housing (1) near the displacement rod B (14), and the displacement rod B (14) is also slidably connected inside the stop cylinder (16), and a storage cylinder (17) is fixedly connected to the top of the stop cylinder (16). The transmission screw (18) is vertically threaded inside the transmission screw (18), and a stop block (19) is fixedly connected to one end of the transmission screw (18) inside the storage cylinder (17).

6. A modular air filter according to claim 2, characterized in that: Both piston A (11) and piston B (15) have multiple sealing grooves on their outer sides, and each sealing groove is fitted with a sealing ring.

7. A modular air filter according to claim 3, characterized in that: The locking rod (23) is rotatably connected to a locking ring on its outer side, and the locking ring is provided with a wear-resistant pad.

8. A modular air filter according to claim 2, characterized in that: A retainer is fixedly connected to one side of the central frame (5), and an installation hole is provided on the retainer. The transmission cylinder B (13) is also inserted inside the installation hole.

9. A modular air filter according to claim 4, characterized in that: The bottom end of the mounting ear (43) is fixedly connected to a linkage rod (44), and the linkage rod (44) is also movably connected inside the linkage through groove (42).

10. A modular air filter according to claim 4, characterized in that: The card plate (40) is arc-shaped, and the extension frame (21) has a locking groove (45) at one end away from the slow-flow frame (20), and the card plate (40) is also snapped into the inside of the locking groove (45).

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