Air filtering box channel and air filter

Abstract

The invention relates to the technical field of filtering channels, and provides an air filtering channel and an air filter, the air filtering channel can realize bidirectional ventilation, a filtering device can realize bidirectional ventilation filtering, gas entering the inside from the outside can be filtered, gas exhausted from the inside can also be filtered, and the filtering effect is good. The device is higher in practicability, can be automatically adjusted according to the flowing direction of gas, is higher in functionality and comprises an air channel and a filter device, the air channel comprises an expansion section in the middle and communication sections at the two ends, the two communication sections communicate with the expansion section, outer through openings are formed in the left end and the right end of the expansion section, and the filter device comprises a filter cartridge frame. An air inlet and an air outlet are formed in the filter cartridge frame, a filling cavity is formed in the filter cartridge frame, the air inlet and the air outlet are both communicated with the filling cavity, a filter body is arranged in the filling cavity, a penetrating shaft barrel is fixedly connected into the filter cartridge frame, and the two ends of the penetrating shaft barrel are rotationally connected into the two outer through openings respectively.

Description

Technical Field

[0001] The invention relates to the technical field of filter cartridges, and in particular to an air filter cartridge and an air filter. Background Art

[0002] The air filter cassette refers to the path through which air flows in the air filtration system. It is usually composed of pipes, air ducts, filters, etc. Its function is to guide the air through the filtering equipment to purify the air. The air filter is the corresponding filtering equipment installed in the air filter cassette.

[0003] After searching, the Chinese patent publication number CN107670423A discloses an air filtration device based on air duct transformation, which is roughly described as comprising an air intake layer and an exhaust layer, the air intake layer comprising a first air intake port, an air intake channel, an air intake chamber and a first exhaust port connected in sequence, a filter screen close to the first air intake port is arranged in the air intake channel, the exhaust layer comprises a second air intake port, an exhaust chamber, an exhaust channel and a second exhaust port connected in sequence, a first partition plate is arranged between the air intake channel and the exhaust channel, and the first partition plate comprises a fixing portion and a hinged portion. The fixed part is located directly below the filter screen, the hinged part is hingedly connected to the fixed part, and a rotation control device is provided at the connection between the fixed part and the hinged part. When in use, during the air filtering process, under the control of the rotation control device, the hinged part and the fixed part are in the same straight line, and the air inlet channel is separated from the exhaust channel. Under the action of the air inlet fan in the air inlet chamber, the outdoor air enters the room through the first air inlet, the air inlet channel, the air inlet chamber and the first exhaust port in sequence. At this time, the filter screen filters the solid pollutants in the air, so that the air entering the room Higher quality. At the same time, under the action of the exhaust fan in the exhaust chamber, the indoor air is discharged to the outside through the second air inlet, the exhaust chamber, the exhaust channel and the second exhaust port in turn to complete the air circulation. The Chinese patent publication number CN203990114U discloses a dual-duct air filter, which is roughly described as including a filter cylinder, a support member is provided inside the filter cylinder, and the left and right sides of the support member each have an air inlet. The middle part of the support member has a vertical partition, and the partition separates the support member into left and right air ducts. The exhaust port is upward, and a motor is fixedly provided in the middle part of the support member. The output shafts on both sides of the motor are simultaneously connected to two wind wheels in a mirror relationship. The wind wheels are located in the internal space of the support member. An air duct cover is fixedly provided at the air inlet on the left and right sides of the support member. It adopts a single motor to drive two wind wheels, and the two ends of the motor axis direction are extended at the same time. The two ends of the extended motor shaft carry two wind wheels, thereby solving the problem of the previous single motor driving a single wind wheel. One motor has two wind wheels, the motor power is not increased, the wind wheel diameter is not increased, the thickness is not increased, and the air volume is doubled.

[0004] Although the above-mentioned existing technical solutions form an air filtration channel, the filtration is unidirectional. Considering the particularity of the actual application environment, for some situations where internal and external gases need to be exchanged back and forth, and during the exchange process, it is necessary to prevent debris in the outside air from entering the interior, and it is also necessary to prevent debris contained in the internal gas from being discharged, the applicability of the above two sets of technical solutions is poor. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an air filter duct and an air filter, wherein the air filter duct can realize two-way ventilation, and during the two-way ventilation process, the filter device can realize two-way ventilation and filtration, which can filter the gas entering from the outside to the inside, and can also filter the gas discharged from the inside to the outside. It has better practicality and can be adjusted autonomously according to the flow direction of the gas, and has stronger functionality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air filter box channel and an air filter, comprising an air filter box channel and a filter element, the air filter channel comprising an enlarged section in the middle and connecting sections at both ends, the two connecting sections are connected to the enlarged section, and both left and right ends of the enlarged section are provided with external openings, the filter element comprises a filter cartridge holder, the filter cartridge holder is provided with an air inlet and an exhaust port, a filling cavity is provided in the filter cartridge holder, the air inlet and the exhaust port are both connected to the filling cavity, and a filter body is provided in the filling cavity, the filter cartridge A through-axis cylinder is fixedly connected in the frame, and two ends of the through-axis cylinder are rotatably connected in the two external openings respectively. A stepped opening is opened on the filter cylinder frame, and an elastic recovery spring is fixedly connected in the stepped opening. The elastic recovery spring is fixedly connected in the expansion section. The left and right ends of the expansion section are fixedly connected with an extended shell, and linkage components are installed in the two extended shells. The two linkage components are used for driving the through-axis cylinder, and the two connecting sections are installed with pressure difference driving structures, and the two pressure difference driving structures are matched with the two linkage components respectively.

[0007] Preferably, the two linkage components include a sliding frame and a return spring, the two return springs are respectively fixedly connected to the left and right ends of the expansion section, the two return springs are respectively fixedly connected to the two sliding frames, the two sliding frames are respectively slidably connected in the two extended shells, the two sliding frames are slidably connected with an inner push frame, the two inner push frames are both fixedly connected with an inner push spring, the two inner push springs are respectively fixedly connected to the two sliding frames, the two sliding frames are each provided with a lateral hole, the two lateral holes are each slidably connected with a side drive rod, the two side drive rods are both rotatably connected with a transmission bar, the two transmission bars are respectively rotatably connected to the two inner push frames, and two spiral grooves are provided in the through shaft cylinder, the spiral directions of the two spiral grooves are opposite, and the two spiral grooves are respectively matched with the two side drive rods.

[0008] Preferably, the two pressure difference driving structures each include an elastic bag and an external box, one end of the two elastic bags are respectively connected to the two inner push frames, an insertion cavity is provided in the two extended shells, the two elastic bags are respectively located in the two insertion cavities, the two external boxes are respectively connected to the two connecting sections, the two external boxes are respectively connected to the two elastic bags, and elastic pressure relief doors are installed in the two external boxes.

[0009] Preferably, the two elastic pressure relief doors are each provided with an angular hole, an axle rod is disposed in each of the angular holes, the two external boxes are each fixedly connected with a sleeve, the two axles are respectively connected to the two sleeves, an elastic spring is disposed in each of the two sleeves, and the two elastic springs are respectively connected to the two axles.

[0010] Preferably, the bottom ends of the two elastic springs are fixedly connected with edge blocks, the top ends of the two shaft rods are provided with insertion grooves, the two edge blocks are respectively inserted into the two insertion grooves, the top ends of the two elastic springs are fixedly connected with press-in blocks, the two press-in blocks are respectively inserted into the two shaft sleeves, the two shaft sleeves are threadedly connected with threaded pressure caps, and the two threaded pressure caps are matched with the two press-in blocks respectively.

[0011] Preferably, two cleaning plates are slidably connected in the expanded section, and a guide ridge is provided in the expanded section. Two transmission rods are provided in the guide ridge, and the two transmission rods are fixedly connected to the two cleaning plates respectively, and the two transmission rods are fixedly connected to the two sliding frames respectively, and the bottom end of the expanded section is connected to a dirt collecting barrel, and a blind plate is detachably installed at the bottom end of the dirt collecting barrel.

[0012] Preferably, the two extended shells are each provided with a guide slide opening, and the two guide slide openings are both slidably connected with a transmission plate, the two transmission plates are respectively fixedly connected to the two transmission rods, and the two transmission plates are also respectively fixedly connected to the two sliding frames.

[0013] Preferably, electromagnets are installed outside the two extended shells, and the two electromagnets are equipped with permanent magnets, and the two permanent magnets are respectively fixedly connected to the two inner push frames.

[0014] Preferably, the two elastic pressure relief doors are each provided with a capillary pressure relief hole, and the two capillary pressure relief holes are each equipped with a pointed arc-shaped poke rod, and the two pointed arc-shaped poke rods are respectively fixedly connected in the two external boxes.

[0015] Preferably, the two curved surfaces of the filter cartridge frame are both provided with recessed grooves, and a plurality of wind-driven ridges are fixedly connected in the two recessed grooves.

[0016] Compared with the prior art, the present invention provides an air filter cassette and an air filter, which have the following beneficial effects:

[0017] (1) In the present invention, the air box channel is designed to form a guiding space for air flow, and also conveniently provides a storage space and installation structure for the filter element.

[0018] (2) In the present invention, through the design of the filter element, the air flowing through the air box channel is filtered accordingly, and on the basis of filtering, it also has the function of blocking the air box channel, which is more practical.

[0019] (3) In the present invention, through the design of the linkage component, the matching filter device forms a corresponding driving structure to facilitate the corresponding rotation adjustment of the air pressure difference in the two connecting sections of the matching filter device, and then facilitate the corresponding filtration of the matching air flow direction.

[0020] (4) In the present invention, through the design of the pressure difference driving structure, the air pressure in the two connecting sections is matched to form a corresponding response structure to facilitate the driving of the linkage component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 It is a schematic diagram of the three-dimensional structure of the sliding frame, the transmission rod and the transmission plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the inner push frame, the inner push spring and the side drive rod of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the side driving rod and the transmission bar of the present invention; Figure 6 It is a partially cutaway three-dimensional structural schematic diagram of the cooperation of the external box, the elastic pressure relief door and the shaft sleeve of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the local enlarged structure at B in the middle; Figure 8 It is a schematic diagram of an exploded three-dimensional structure of the elastic pressure relief door, shaft rod and elastic spring of the present invention; Fig. 9 It is a partially cutaway three-dimensional structural schematic diagram of the cooperation between the external box, the shaft sleeve and the pointed arc-shaped poke rod of the present invention; Fig.10 It is a schematic diagram of the overall three-dimensional structure of the present invention; Fig.11It is another partially cutaway bottom-view three-dimensional structural schematic diagram of the present invention; Fig.12 It is a bottom-view three-dimensional structural schematic diagram of the cooperation of the enlarged section, the elastic restoring spring and the guide ridge of the present invention; Fig.13 It is a bottom-up three-dimensional structural schematic diagram of the side drive rod and the transmission bar in cooperation with each other according to the present invention; Fig.14 It is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above; Fig.15 It is a partially cutaway three-dimensional structural schematic diagram of the filter cartridge frame, elastic restoring spring and through-shaft cartridge of the present invention.

[0022] In the figure: 1, expansion section; 2, connecting section; 3, external opening; 4, filter cartridge holder; 5, air inlet; 6, exhaust port; 7, filling chamber; 8, filter body; 9, through-axis cylinder; 10, stepped opening; 11, elastic recovery spring; 12, extended shell; 13, sliding frame; 14, reset spring; 15, inner push frame; 16, inner push spring; 17, lateral hole; 18, side drive rod; 19, transmission bar; 20, spiral groove; 21, elastic capsule; 22, external box; 2 3. Insertion cavity; 24. Elastic pressure relief door; 25. Edge hole; 26. Shaft rod; 27. Bushing; 28. Elastic spring; 29. ​​Edge block; 30. Threaded pressure nut; 31. Cleaning plate; 32. Guide ridge; 33. Drive rod; 34. Dirt collecting cylinder; 35. Blind plate; 36. Guide slide mouth; 37. Drive plate; 38. Electromagnet; 39. Permanent magnet; 40. Capillary pressure relief hole; 41. Pointed arc-shaped poke rod; 42. Concave groove; 43. Wind-driven ridge. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] For examples, see Figure 1-Figure 15, an air filter duct and an air filter, including an air duct and a filter element, the air duct includes an expansion section 1 in the middle and connecting sections 2 at both ends, the two connecting sections 2 are connected to the expansion section 1, and the left and right ends of the expansion section 1 are provided with external openings 3. Through the design of the air duct, a guiding space for air flow is formed, and it is also convenient to provide storage space and installation structure for the filter element. The filter element includes a filter cartridge frame 4, and an air inlet 5 and an exhaust port 6 are arranged on the filter cartridge frame 4. A filling cavity 7 is arranged in the filter cartridge frame 4, and the air inlet 5 and the exhaust port 6 are both connected to the filling cavity 7, and a filter body 8 is arranged in the filling cavity 7. A through hole is fixedly connected in the filter cartridge frame 4. The shaft cylinder 9, the two ends of which pass through the shaft cylinder 9, are rotatably connected to the two external openings 3 respectively. A stepped opening 10 is provided on the filter cartridge holder 4, and an elastic recovery spring 11 is fixedly connected in the stepped opening 10. The elastic recovery spring 11 is fixedly connected in the expansion section 1. Through the design of the filter device, the air flowing through the air box channel is matched to form a corresponding filter, and on the basis of filtering, it also has a blocking function of the air box channel, which is more practical. Concave grooves 42 are provided on the two curved surfaces of the filter cartridge holder 4, and a plurality of wind-driven ridges 43 are fixedly connected in the two concave grooves 42 to improve the wind resistance of the filter cartridge holder 4. When there is continuous air flow in the expansion section 1, the relative rotation of the filter cartridge holder 4 can be guaranteed. The filter cartridge frame 4 performs a corresponding filtering operation on the flowing air. The left and right ends of the expanded section 1 are fixedly connected with an outrigger shell 12. The two outrigger shells 12 are installed with linkage components. The two linkage components are used to drive the through-axis cylinder 9. The two linkage components include a sliding frame 13 and a return spring 14. The two return springs 14 are respectively fixedly connected to the left and right ends of the expanded section 1. The two return springs 14 are respectively fixedly connected to the two sliding frames 13. The two sliding frames 13 are respectively slidably connected to the two outrigger shells 12. The two sliding frames 13 are slidably connected with an inner push frame 15. The two inner push frames 15 are fixedly connected with an inner push spring 16. The two inner push springs 16 are respectively connected to the two outer push frames 12. The two sliding frames 13 are fixedly connected, and lateral holes 17 are provided on the two sliding frames 13. Side drive rods 18 are slidably connected in the two lateral holes 17. The two side drive rods 18 are rotatably connected to transmission bars 19. The two transmission bars 19 are rotatably connected to the two inner push frames 15 respectively. Two spiral grooves 20 are provided in the through-axis tube 9. The spiral directions of the two spiral grooves 20 are opposite, and the two spiral grooves 20 are matched with the two side drive rods 18 respectively. Through the design of the linkage component, the matching filter device forms a corresponding driving structure to facilitate the corresponding rotation adjustment of the air pressure difference in the two connecting sections 2 of the matching filter device, and then facilitate the corresponding filtration in the flow direction of the matching air.

[0025] It should be further explained that the two connecting sections 2 are both equipped with a pressure difference driving structure, and the two pressure difference driving structures are matched with the two linkage components respectively. The two pressure difference driving structures include an elastic bag 21 and an external box 22. One end of the two elastic bags 21 is respectively connected to the two inner push frames 15. The two extended shells 12 are provided with an insertion cavity 23. The two elastic bags 21 are respectively located in the two insertion cavities 23. The two external boxes 22 are respectively connected with the two connecting sections 2. The two external boxes 22 are respectively connected with the two elastic bags 21. Elastic pressure relief doors 24 are installed in the two external boxes 22. Through the design of the pressure difference driving structure, the air pressure in the two connecting sections 2 is matched to form a corresponding response structure to facilitate the driving of the linkage component. The two elastic pressure relief doors 24 are provided with a pressure relief door 24. Both of them are provided with prism holes 25, and shaft rods 26 are arranged in the two prism holes 25. Both of the two external boxes 22 are fixedly connected with shaft sleeves 27, and the two shaft rods 26 are respectively connected in the two shaft sleeves 27. Both of the two shaft sleeves 27 are provided with elastic springs 28, and the two elastic springs 28 are respectively connected with the two shaft rods 26, so as to facilitate the elastic pressure relief door 24 to rotate and open under high pressure. The bottom ends of the two elastic springs 28 are fixedly connected with prism blocks 29, and the top ends of the two shaft rods 26 are provided with insertion grooves, and the two prism blocks 29 are respectively inserted into the two insertion grooves. The top ends of the two elastic springs 28 are fixedly connected with press-in blocks, and the two press-in blocks are respectively inserted into the two shaft sleeves 27. The two shaft sleeves 27 are threadedly connected with threaded pressure caps 30, and the two threaded pressure caps 30 are respectively connected with the two press-in The specific installation structure of the elastic spring 28 and the elastic pressure relief door 24 is explained, and the corresponding functions of the elastic pressure relief door 24 are ensured, so as to facilitate the corresponding installation of the elastic pressure relief door 24 in the external box 22. The two elastic pressure relief doors 24 are both provided with capillary pressure relief holes 40, and the two capillary pressure relief holes 40 are both equipped with pointed arc-shaped poke rods 41, which are respectively fixedly connected in the two external boxes 22. The capillary pressure relief holes 40 can slowly release the high-pressure gas in the elastic bag 21 to prepare for the elastic extension of the elastic bag 21 again, and during the rotation and opening process of the elastic pressure relief door 24, the pointed arc-shaped poke rod 41 will rotate and insert into the capillary pressure relief hole 40, which can assist the capillary pressure relief hole 40 to clean the debris therein, thereby avoiding The capillary pressure relief hole 40 is blocked. Two cleaning plates 31 are slidably connected in the expansion section 1. The expansion section 1 is provided with a guide ridge 32. Two transmission rods 33 are provided in the guide ridge 32. The two transmission rods 33 are respectively fixedly connected to the two cleaning plates 31. The two transmission rods 33 are respectively fixedly connected to the two sliding frames 13. The bottom end of the expansion section 1 is connected to a dirt collecting cylinder 34. The bottom end of the dirt collecting cylinder 34 is detachably installed with a blind plate 35 to facilitate the collection and cleaning of debris in the expansion section 1. Guide slide openings 36 are provided on the two extended shells 12. Transmission plates 37 are slidably connected in the two guide slide openings 36. The two transmission plates 37 are respectively fixedly connected to the two transmission rods 33. The two transmission plates 37 are also respectively fixedly connected to the two sliding frames 13.Electromagnets 38 are installed outside the two extended shells 12. Both electromagnets 38 are equipped with permanent magnets 39. The two permanent magnets 39 are fixedly connected to the two inner push frames 15. The two electromagnets 38 are energized to generate electromagnetic fields. The two electromagnetic fields act on the two permanent magnets 39 respectively, so that the auxiliary drive of the two inner push frames 15 can be realized, so as to facilitate the active drive control of the filter cartridge frame 4.

[0026] The electromagnet 38 in this embodiment is a conventional device purchased on the market and known to those skilled in the art. In the present invention, we only use it without improving its structure and function. For those skilled in the art, its setting method, installation method and electrical connection method can be debugged and operated according to the requirements of its instruction manual, and will not be described in detail here.

[0027] To sum up, the working principle of the air filter cassette and the air filter is that, when in use, the connecting section 2 is first connected to the external air duct so that the two connecting sections 2 are connected to the internal channel and the external channel of the air duct respectively. In order to improve the air flow trend between the internal channel and the external channel, a fan connected to the outside can be added to increase the kinetic energy of the air in the connecting section 2. In the static state, the filter cartridge frame 4 of the air filter cassette and the air filter is in a state with the air inlet 5 facing downward and the exhaust port 6 facing upward. In this state, the air inlet 5 and the exhaust port 6 are misaligned with the gas channel of the expansion section 1, so that the expansion section 1 is in a blocked state. When the fan is running to cause air flow to form in the connecting section 2, since the expansion section 1 is in a blocked state, the air in the two connecting sections 2 will quickly form an air pressure difference under the driving action of the fan on the wind, so as to attach Figure 1For reference, when the gas pressure in the rear connecting section 2 is greater than the gas pressure in the front connecting section 2, the pressure in the rear connecting section 2 will also be greater than the gas pressure in the rear external box 22. Since the aperture of the capillary pressure relief hole 40 accounts for a relatively small proportion of the entire width of the elastic pressure relief door 24, and under the operation of the fan, the gas pressure difference in the front and rear connecting sections 2 is formed relatively quickly, so the gas pressure in the external box 22 and the air pressure in the rear connecting section 2 cannot be quickly balanced simply through the capillary pressure relief hole 40, which will cause the rear side. The elastic pressure relief door 24 overcomes the elastic spring 28 to rotate and open. The elastic pressure relief door 24 that is rotated and opened will connect the connecting section 2 at the rear side with the external box 22 at the rear side, so that the air pressure in the external box 22 at the rear side is increased. The increase in air pressure in the external box 22 at the rear side will also increase the air pressure in the elastic bag 21 on the left side. The increase in air pressure in the elastic bag 21 will cause the overall length of the elastic bag 21 to increase, and finally form the drive of the inner push frame 15 on the left side. Under the supporting action of the inner push spring 16 and the return spring 14 on the left side, the inner push frame 15 on the left side will first move relative to the left The sliding frame 13 on the left side forms a relative movement, and under the transmission action of the transmission bar 19 on the left side, the side driving rod 18 on the left side will be exposed in the side hole 17 on the left side, and the exposed side driving rod 18 will act on the spiral groove 20 that penetrates the shaft tube 9, accompanied by the further elastic extension of the elastic bag 21 on the left side, when the side driving rod 18 on the left side moves to the extreme position relative to the side hole 17 on the left side, the inner pushing frame 15 on the left side will drive the sliding frame 13 on the left side to form a synchronous movement, and then the side driving rod 18 on the left side will be driven to the right. Under the transmission action of the side driving rod 18 on the left and the corresponding spiral groove 20, a rotational drive of the through-axis cylinder 9 in the external opening 3 is formed, so that the filter cylinder frame 4 is rotated and adjusted in the expansion section 1, so that the air inlet 5 and the exhaust port 6 are connected and aligned with the expansion section 1. After that, the gas in the connecting section 2 on the rear side will flow through the expansion section 1 into the connecting section 2 on the front side, that is, the high-pressure gas will flow to the low-pressure area under the action of the gas pressure, and during the gas flow process, it will pass through the filling chamber 7, and the filter body 8 in the filling chamber 7 will filter the gas.

[0028] Furthermore, during the gas flow process, when the gas has a certain flow rate and flow rate, the flowing gas acts on the wind-driven ridges 43, causing the filter cartridge holder 4 to be subjected to a certain rotational driving force. Therefore, when the expansion section 1 has a continuous and stable air flow rate, even if the pressure difference between the two connecting sections 2 decreases or even disappears, the filtering state of the filter cartridge holder 4 can be maintained. When the air flow in the expansion section 1 disappears, under the action of the elastic recovery spring 11, the filter cartridge holder 4 rotates and resets to make the air inlet 5 turn to the side of the expansion section 1 facing the dirt collecting cylinder 34 again. In order to facilitate the automatic cleaning and auxiliary external discharge of debris on the filter body 8 at the air inlet 5, one side of the dirt collecting cylinder 34 should be controlled to be at the bottom at the initial installation stage. In this way, when the air inlet 5 of the filter cartridge holder 4 is static, it will be in a downward state, and the debris filtered by the filter body 8 in the air inlet 5 can also be assisted to fall under the action of its own gravity to ensure the cleanliness of the air inlet end of the filter body 8, when the air pressure in the connecting section 2 on the front side is greater than the air pressure in the connecting section 2 on the rear side. When the filter cartridge 4 is in the air, the side drive rod 18 on the right side will act on the through shaft cylinder 9, forming the rotation and lifting of the filter cartridge holder 4 in the other direction, so that the air inlet 5 of the filter cartridge holder 4 is always on the side where the gas flows in, ensuring the unidirectionality of the filter body 8 for gas filtering, and in the actual operation process, the control power supply of the electromagnet 38 can be turned on, so that the electromagnet 38 can generate an electromagnetic field acting on the permanent magnet 39, prompting the permanent magnet 39 to form a corresponding movement, and then achieve the electric drive of the corresponding inner push frame 15, forming the rotation control of the filter cartridge holder 4, so that the filter cartridge holder 4 jumps out of the control state of the pressure difference between the two connecting sections 2, and achieves the interference control of the specific posture of the filter cartridge holder 4 in the expansion section 1, enriching the application environment of the air filter box and the air filter, and in the use process, accompanied by the extension and shortening action of the elastic bag 21, under the transmission action of the sliding frame 13, the transmission plate 37 and the transmission rod 33, the auxiliary movement of the cleaning plate 31 in the expansion section 1 can be realized, so as to prompt the debris in the expansion section 1 to gather into the dirt collecting cylinder 34.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air filter cassette and an air filter, comprising an air cassette, characterized in that: It also includes a filter device, wherein the air gate includes an expanded section (1) in the middle and connecting sections (2) at both ends, the two connecting sections (2) are both connected to the expanded section (1), and both left and right ends of the expanded section (1) are provided with external openings (3), and the filter device includes a filter cartridge frame (4), the filter cartridge frame (4) is provided with an air inlet (5) and an air outlet (6), a filling cavity (7) is provided in the filter cartridge frame (4), the air inlet (5) and the air outlet (6) are both connected to the filling cavity (7), and a filter body (8) is provided in the filling cavity (7), and a through shaft cylinder (9) is fixedly connected to the filter cartridge frame (4), and the through shaft cylinder (9) is fixedly connected to the filter cartridge frame (4). The two ends of the through-shaft cylinder (9) are rotatably connected to the two external openings (3), respectively; a stepped opening (10) is provided on the filter cylinder frame (4); an elastic restoring spring (11) is fixedly connected to the stepped opening (10); the elastic restoring spring (11) is fixedly connected to the expansion section (1); the left and right ends of the expansion section (1) are fixedly connected to an extension shell (12); linkage components are installed in the two extension shells (12); the two linkage components are used to drive the through-shaft cylinder (9); the two connecting sections (2) are installed with a pressure difference driving structure; the two pressure difference driving structures are matched with the two linkage components respectively.

2. An air filter cassette and an air filter according to claim 1, characterized in that: The two linkage components each comprise a sliding frame (13) and a return spring (14), the two return springs (14) being respectively fixedly connected to the left and right ends of the expansion section (1), the two return springs (14) being respectively fixedly connected to the two sliding frames (13), the two sliding frames (13) being respectively slidably connected to the two extended shells (12), the two sliding frames (13) being slidably connected to an inner push frame (15), the two inner push frames (15) being respectively fixedly connected to an inner push spring (16), the two inner push springs (16) being respectively connected to the two The sliding frames (13) are fixedly connected, and the two sliding frames (13) are each provided with a lateral hole (17), and the two lateral holes (17) are each slidably connected with a lateral driving rod (18), and the two lateral driving rods (18) are each rotatably connected with a transmission bar (19), and the two transmission bars (19) are respectively rotatably connected to the two inner push frames (15), and the through shaft cylinder (9) is provided with two spiral grooves (20), and the spiral directions of the two spiral grooves (20) are opposite, and the two spiral grooves (20) are respectively matched with the two lateral driving rods (18).

3. An air filter cassette and an air filter according to claim 2, characterized in that: The two pressure difference driving structures each comprise an elastic bag (21) and an external box (22); one end of the two elastic bags (21) is respectively connected to the two inner push frames (15); an insertion cavity (23) is provided in the two outer extension shells (12); the two elastic bags (21) are respectively located in the two insertion cavities (23); the two external boxes (22) are respectively connected to the two connecting sections (2); the two external boxes (22) are respectively connected to the two elastic bags (21); and elastic pressure relief doors (24) are installed in the two external boxes (22).

4. An air filter cassette and an air filter according to claim 3, characterized in that: The two elastic pressure relief doors (24) are each provided with an angular hole (25), a shaft rod (26) is disposed in each of the angular holes (25), a shaft sleeve (27) is fixedly connected to each of the two external boxes (22), the two shaft rods (26) are respectively connected in the two shaft sleeves (27), an elastic spring (28) is disposed in each of the two shaft sleeves (27), and the two elastic springs (28) are respectively connected to the two shaft rods (26).

5. An air filter cassette and an air filter according to claim 4, characterized in that: The bottom ends of the two elastic springs (28) are fixedly connected with edge blocks (29), the top ends of the two shaft rods (26) are provided with insertion grooves, the two edge blocks (29) are respectively inserted into the two insertion grooves, the top ends of the two elastic springs (28) are fixedly connected with press-in blocks, the two press-in blocks are respectively inserted into the two shaft sleeves (27), the two shaft sleeves (27) are threadedly connected with threaded pressing caps (30), and the two threaded pressing caps (30) are matched with the two press-in blocks respectively.

6. An air filter cassette and an air filter according to claim 5, characterized in that: Two cleaning plates (31) are slidably connected in the enlarged section (1); the enlarged section (1) is provided with a guide ridge (32); two transmission rods (33) are provided in the guide ridge (32); the two transmission rods (33) are respectively fixedly connected to the two cleaning plates (31); the two transmission rods (33) are respectively fixedly connected to the two sliding frames (13); the bottom end of the enlarged section (1) is connected to a dirt collecting barrel (34); the bottom end of the dirt collecting barrel (34) is detachably mounted with a blind plate (35).

7. An air filter cassette and an air filter according to claim 6, characterized in that: The two extended shells (12) are each provided with a guide slide opening (36), and a transmission plate (37) is slidably connected in the two guide slide openings (36). The two transmission plates (37) are respectively fixedly connected to the two transmission rods (33), and the two transmission plates (37) are also respectively fixedly connected to the two sliding frames (13).

8. An air filter cassette and an air filter according to claim 7, characterized in that: Electromagnets (38) are installed outside the two extended shells (12), and the two electromagnets (38) are equipped with permanent magnets (39). The two permanent magnets (39) are respectively fixedly connected to the two inner push frames (15).

9. An air filter cassette and an air filter according to claim 8, characterized in that: The two elastic pressure relief doors (24) are each provided with a capillary pressure relief hole (40), and the two capillary pressure relief holes (40) are each equipped with a pointed arc-shaped poking rod (41), and the two pointed arc-shaped poking rods (41) are respectively fixedly connected in the two external boxes (22).

10. An air filter cassette and an air filter according to claim 9, characterized in that: Concave grooves (42) are provided on the two arc surfaces of the filter cartridge frame (4), and a plurality of wind-driven ridges (43) are fixedly connected in the two concave grooves (42).

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