A filter cartridge seal structure

Abstract

The application discloses a filter core sealing structure, which comprises a first shell, a second shell and filter pieces, the filter pieces are two, mounting blocks are fixedly connected to the ends of the filter pieces, and a fixing seat is fixedly connected to the inside of the second shell, and a mounting groove is formed in the inside of the fixing seat. When the device is used, a user installs the filter pieces in the fixing seat, at this time, the mounting blocks are located in the fixing seat, when a fan pumps dust gas, the filter pieces will be filled with the gas, and the rotating plates are blown and rotated by the wind, when the dust filtered by the filter pieces reaches a certain amount, the wind force gradually decreases, so that the filter pieces stop being used, another filter piece is communicated with the air duct, at this time, the rotating plates will be reset, and in the resetting process of the rotating plates, the rotating plates drive the linkage rods to slide, so that the indicating rods move upwards, and when the user sees that the indicating rods move upwards, the filter pieces can be removed, so that the function of prompting the user is realized.

Description

Technical Field

[0001] This invention belongs to the field of filter element technology, specifically a filter element sealing structure. Background Technology

[0002] In painting workshops, to prevent dust from being released into the outside air during the processing, exhaust ventilation equipment is usually used to extract the gas in the workshop and then release it to the outside after filtration.

[0003] For existing sealing structures, most are one-to-one sealing structures for one filter element. For structures where multiple filter elements are used alternately, no corresponding sealing structure is disclosed in the prior art. Therefore, this application proposes a filter element sealing structure. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a filter element sealing structure, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a filter element sealing structure, comprising a first outer shell, a second outer shell, and filter elements, wherein there are two filter elements, and a mounting block is fixedly connected to the end of each filter element. A fixing seat is fixedly connected inside the second outer shell, and a mounting groove is provided inside the fixing seat, into which the mounting block can be inserted. A rotatable rotating plate is also provided inside the second outer shell, and two rotatable cover plates are also provided on the second outer shell, each corresponding to one of the two filter elements. The two filter elements are separated by a partition. The rotating plate is mounted on the partition plate, and a linkage rod capable of vertical movement is provided inside the partition plate. When the cover plate is closed, the linkage rod can move downward.

[0006] An indicator rod is also installed inside the partition, and the indicator rod can move downward together with the linkage rod.

[0007] After the linkage rod moves downward, the indicator rod can move downward and press against the linkage rod. When the rotating plate is blown by the airflow from the filter element, both the linkage rod and the indicator rod remain in their original positions.

[0008] When the airflow inside the filter disappears, the rotating plate can reset, and at this time the linkage rod can be pulled, causing the indicator rod to move upward.

[0009] Furthermore, a locking rod is rotatably provided on the cover plate, and a locking block is fixed to the end of the locking rod. The upper end of the locking block is a flat surface, and its lower end is an inclined surface. The lower end of the locking block abuts against the linkage rod, so that when the locking rod rotates, the linkage rod can move up and down accordingly.

[0010] Furthermore, a third spring is provided inside the partition, and a top plate is fixed to the upper end of the third spring. The upper surface of the top plate has a ball bearing that can roll freely. The linkage rod presses on the ball bearing, and a fourth spring is provided between the linkage rod and the top plate.

[0011] Furthermore, the surface of the second housing is provided with an indicator hole, an indicator rod is disposed in the indicator hole, and the lower end face of the indicator rod is provided with a first inclined surface. One end of the linkage rod is provided with a second inclined surface, so that when the linkage rod slides, the first inclined surface and the second inclined surface can cooperate with each other to allow the indicator rod to extend out of the indicator hole.

[0012] Furthermore, a base plate is fixedly attached to the indicator rod, the base plate extends to one side and is inserted into the mounting groove, and the mounting block can press against the base plate.

[0013] Furthermore, a rod capable of moving up and down is installed inside the linkage rod, a hinge shaft is fixedly connected to the rotating plate, and a turntable is fixedly connected to the hinge shaft. A notch is provided on the turntable, and the rod can fall into the notch under its own weight.

[0014] Furthermore, the upper end of the rod is installed inside the sliding part, and the rod can swing inside the sliding part so that when the turntable is reset, the side wall of the notch can move the rod and drive the linkage rod to slide.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When using this device, the user installs the filter element in the fixed base. At this time, the mounting block is located in the fixed base. When the fan pumps the dust gas, gas will be introduced into the filter element, and the rotating plate will be blown by the wind and rotate. When the dust filtered by the filter element reaches a certain amount, the wind force will gradually decrease so that the filter element stops working. Another filter element is connected to the air duct. At this time, the rotating plate will reset. During the reset process, the rotating plate drives the linkage rod to slide, thereby causing the indicator rod to move upward. When the user sees the indicator rod move to the top, the filter element can be removed, thus serving as a prompt to the user.

[0017] 2. When this device is implemented, a sensing module is also set up. The sensing module can measure the rotation angle of the rotating plate. When the wind force decreases, the rotation angle of the rotating plate decreases accordingly. When the rotation angle of the rotating plate is less than the predetermined angle, the sensing module can control the control module to change the direction of the air duct, that is, which filter element the air in the air duct passes through, so as to realize the selection and use of the filter element. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of a filter element sealing structure according to the present invention;

[0020] Figure 2 This is a partial internal structural diagram of a filter element sealing structure according to the present invention;

[0021] Figure 3 This is a schematic diagram of the mating structure between the filter element and the fixing seat in a filter element sealing structure according to the present invention;

[0022] Figure 4 This is a schematic diagram showing the combination of the indicator rod, linkage rod, and turntable in a filter element sealing structure according to the present invention;

[0023] Figure 5 This is an enlarged schematic diagram of the phase structure of the locking rod and locking block of a filter element sealing structure according to the present invention;

[0024] Figure 6 This is an enlarged schematic diagram of the combination of the indicator rod and the base plate in a filter element sealing structure according to the present invention;

[0025] Figure 7 This is a schematic diagram of one side of the combined structure of the rotating plate, hinge shaft and turntable of a filter element sealing structure according to the present invention;

[0026] Figure 8 This is a schematic diagram of the overall structure of a filter element structure according to a first embodiment of the present invention;

[0027] Figure 9 This is an enlarged schematic diagram of the gate structure in one embodiment of a filter element structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the overall structure of a second embodiment of the filter element structure of the present invention;

[0029] Figure 11 A filter element structure according to the present invention Figure 8 Enlarged structural diagram at point A in the middle;

[0030] Figure 12 This is a schematic diagram of the internal structure of a filter element according to the present invention.

[0031] Figure 13 This is a block diagram of a filter element structure according to the present invention;

[0032] Figure 14 This is a schematic diagram of the overall structure of a filter element structure according to a third embodiment of the present invention.

[0033] Figure 15 This is a schematic diagram of the internal structure of the electric valve in the first state inside the fixing seat of a filter element structure according to the present invention.

[0034] Figure 16 This is a schematic diagram of the internal structure of the electric valve in the second state inside the fixing seat of a filter element structure according to the present invention.

[0035] In the diagram: 1. First outer casing; 2. Air duct; 3. Partition; 4. Filter element; 5. Gate structure; 6. Telescopic component; 7. Fixed plate; 8. Movable plate; 9. First guide block; 10. Gate arm; 11. Second guide block; 12. Ball bearing; 13. Fixed base; 14. Mounting block; 15. First pressure detection module; 16. Connector; 17. Insert rod; 18. First spring; 19. Socket; 20. First slot; 21. Second slot; 22. First tooth 23. Wheel; 24. Rotating component; 25. Perforation; 26. Sealing plate; 27. Guide rail; 28. Second gear; 29. ​​Valve plate; 20. Second outer shell; 31. Cover plate; 32. Locking rod; 33. Indicator hole; 34. Rotating plate; 35. Linkage rod; 36. Base plate; 37. Locking block; 38. Indicator rod; 39. Top plate; 40. Third spring; 41. Hinge shaft; 42. Turntable; 43. Notch; 44. Rod body; 45. Fourth spring; 46. Sliding part. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Depend on Figure 1-7 This invention discloses a filter element sealing structure, comprising a first outer shell 1, a second outer shell 29, and filter elements 4. Two filter elements 4 are provided, with a mounting block 14 fixedly connected to one end of each filter element 4. A fixing seat 13 is fixedly connected inside the second outer shell 29, and the fixing seat 13 has an internal mounting groove into which the mounting block 14 can be inserted. A rotatable rotating plate 33 is also provided inside the second outer shell 29. Two rotatable cover plates 30 are also provided on the second outer shell 29, each corresponding to one of the two filter elements 4. The two filter elements 4 are separated by a partition 3. The rotating plate 33 is mounted on the partition 3, and a vertically movable linkage rod 34 is provided inside the partition 3. When the cover plate 30 is closed, the linkage rod 34 moves downward.

[0038] When using this device, the user installs the filter element 4 inside the fixed base 13. At this time, the mounting block 14 is located inside the fixed base 13. When the fan pumps the dust gas, gas will be introduced into the filter element 4, and the rotating plate 33 will be blown by the wind and rotate. When the dust filtered by the filter element 4 reaches a certain amount, the wind force gradually decreases so that the filter element 4 stops working. Another filter element 4 is connected to the air duct 2. At this time, the rotating plate 33 will reset. During the reset process of the rotating plate 33, the rotating plate 33 drives the linkage rod 34 to slide, thereby causing the indicator rod 37 to move upward. When the user sees the indicator rod 37 move to the top, the filter element 4 can be removed, thus serving as a prompt to the user.

[0039] The partition 3 is also equipped with an indicator rod 37, which can move downward together with the linkage rod 34.

[0040] After the linkage rod 34 moves downward, the indicator rod 37 can move downward accordingly and press against the linkage rod 34. When the rotating plate 33 is blown by the airflow from the filter element 4, both the linkage rod 34 and the indicator rod 37 remain in their original positions.

[0041] When the airflow inside the filter element 4 disappears, the rotating plate 33 can be reset and the linkage rod 34 can be pulled, causing the indicator rod 37 to move upward.

[0042] When the rotating plate 33 rotates due to the wind, it does not cooperate with the linkage rod 34. Only when the rotating plate 33 returns to its original position due to the removal of the wind will it drive the linkage rod 34 to move, thereby causing the indicator rod 37 to move upward to provide a prompt to the user.

[0043] When this device is implemented, a sensing module is also provided. The sensing module can measure the rotation angle of the rotating plate 33. When the wind force decreases, the rotation angle of the rotating plate 33 decreases accordingly. When the rotation angle of the rotating plate 33 is less than the predetermined angle, the sensing module can control the control module to change the direction of the air duct 2, that is, which filter element 4 the wind in the air duct 2 passes through, so as to achieve the selection and use of the filter element 4.

[0044] A locking rod 31 is rotatably mounted on the cover plate 30. A locking block 36 is fixed to the end of the locking rod 31. The upper end of the locking block 36 is flat, and its lower end is inclined. The lower end of the locking block 36 abuts against the linkage rod 34, so that when the locking rod 31 rotates, the linkage rod 34 can move up and down accordingly. The locking rod 31 and the locking block 36 allow the user to easily fix the position of the cover plate 30. A straight locking groove is provided in the partition plate 3, and the locking rod 31 and the locking block 36 are cam structures, meaning that their axes are on different straight lines. When the side of the locking block 36 farther from the locking rod 31 is inserted into the locking groove, the cover plate 30 can be fixed, while the side of the locking block 36 closer to the locking rod 31 cannot be inserted into the locking groove, thereby controlling the opening and closing of the cover plate 30. The side of the cover plate 30 is hinged to the second outer shell 29.

[0045] The partition 3 is also provided with a third spring 39. A top plate 38 is fixed to the upper end of the third spring 39. The upper surface of the top plate 38 has a ball that can roll freely. The linkage rod 34 presses on the ball to facilitate the sliding of the linkage rod 34 in the horizontal direction. A fourth spring 44 is also provided between the linkage rod 34 and the top plate 38. The fourth spring 44 can reset the linkage rod 34 in the horizontal direction.

[0046] The surface of the second housing 29 is provided with an indicator hole 32, and an indicator rod 37 is disposed in the indicator hole 32. The lower end face of the indicator rod 37 is provided with a first inclined surface, and one end of the linkage rod 34 is provided with a second inclined surface, so that when the linkage rod 34 slides, the first inclined surface and the second inclined surface can cooperate with each other to allow the indicator rod 37 to extend out of the indicator hole 32.

[0047] The following definition can be set: when the indicator rod 37 is not extended from the indicator hole 32, the filter element 4 is in use, and when the indicator rod 37 extends from the indicator hole 32, the filter element 4 needs to be replaced.

[0048] A base plate 35 is also fixed to the indicator rod 37. The base plate 35 extends to one side and is inserted into the mounting groove. The mounting block 14 can press on the base plate 35, so that when the indicator rod 37 moves upward, the mounting block 14 can be lifted upward so that the user can remove it from the mounting groove.

[0049] A rod 43 capable of moving up and down is installed inside the linkage rod 34. A hinge shaft 40 is fixedly connected to the rotating plate 33. A torsion spring is sleeved on the hinge shaft 40. When the torsion spring is in a free state, the rotating plate 33 is in a state perpendicular to the partition plate 3. A turntable 41 is fixedly connected to the hinge shaft 40. A notch 42 is provided on the turntable 41. The rod 43 can fall into the notch 42 under its own weight.

[0050] The upper end of the rod 43 is installed in the sliding part 45, and the rod 43 can swing in the sliding part 45 so that when the turntable 41 is reset, the side wall of the notch 42 can move the rod 43 and drive the linkage rod 34 to slide.

[0051] Example 1

[0052] Depend on Figure 8 , 9 As shown in 11, 12, 13, 15, and 16, this invention discloses a filter element structure, including a first outer shell 1 and two filter elements 4. The first outer shell 1 has an air duct 2, and a partition 3 is fixedly connected within the first outer shell 1. The two filter elements 4 are respectively installed on both sides of the partition 3. One end of each filter element 4 is open and communicates with the air duct 2. A gate structure 5 is provided within the first outer shell 1, which can block the air duct 2, allowing the air duct 2 to alternately communicate with the filter elements 4.

[0053] The filter element 4 comprises multiple units, with the end of the preceding unit inserted into the following unit, and adjacent units being threaded together. Each unit contains a filter screen, and the end of each unit has a mesh structure.

[0054] A connecting unit is provided inside the air duct 2. Air is blown into the filter element 4 through the connecting unit, and one end of the connecting unit can slide into the interior of the filter element 4.

[0055] The first housing 1 is also provided with two first pressure detection modules 15. Each first pressure detection module 15 corresponds to a filter element 4. The first pressure detection module 15 is used to detect the pressure of the filter element 4 under the blowing of wind. When the first pressure detection module 15 detects that the pressure of the filter element 14 is greater than the threshold, the gate structure 5 can close the inlet of the corresponding filter element 14, and at the same time the inlet of the other filter element 14 can be opened.

[0056] When this device is in use, it is equipped with two filter elements 4, which can be used alternately. This allows the device to be used without stopping. When the amount of dust collected in one of the filter elements 4 is too large, the air duct 2 entering that filter element 4 can be closed, making it convenient for the user to replace it.

[0057] When this device is in use, when a certain amount of dust is loaded into one of the filter elements 4, the thrust on the filter element 4 increases while the air volume in the air duct 2 remains unchanged. This thrust is detected by the first pressure detection module 15. When the pressure is greater than a certain value, the gate structure 5 at the corresponding position can be closed, thereby preventing air from entering the filter element 4 so that the user can replace it.

[0058] The filter element 4 has a multi-layer structure, which allows dust particles of different sizes to be collected in different units. This not only increases the service life of the filter element 4, but also allows for the partitioning and storage of dust.

[0059] There are two gate structures 5, each including a fixed plate 7 and a movable plate 8. The fixed plate 7 is fixed to the inner wall of the air duct 2, and a movable plate 8 that can slide on its surface is provided on one side of the movable plate 8. Both the fixed plate 7 and the movable plate 8 have through holes. When the through holes on the movable plate 8 are aligned with the through holes on the fixed plate 7, the air in the air duct 2 can pass through the gate structure 5 and enter one of the filter elements 4. A telescopic member 6 is provided at one end of the movable plate 8. The telescopic end of the telescopic member 6 is connected to the movable plate 8. When the telescopic end of the telescopic member 6 moves, the movable plate 8 can move accordingly.

[0060] The fixed plate 7 is fixed inside the air duct 2, and the movable plate 8 slides on the surface of the fixed plate 7, so that when the movable plate 8 and the through hole on the fixed plate 7 are intersected, the air in the air duct 2 is blocked.

[0061] When the pressure detected by the first pressure detection module 15 is large, the first pressure detection module 15 can control the telescopic member 6, thereby enabling the movable plate 8 at the corresponding position to move.

[0062] A gate rod 10 is provided between the two gate structures 5. A first guide block 9 is fixedly connected to the opposite side of the two movable plates 8. A second guide block 11 is fixedly connected to the gate rod 10. The first guide block 9 and the second guide block 11 cooperate with each other. A freely rotatable ball 12 is provided inside the gate rod 10. The lower end of the ball 12 extends outside the gate rod 10, so that the gate rod 10 can slide.

[0063] The use of the gate arm 10 ensures that the two movable plates 8 will not open / close, thus ensuring that only one filter element 4 is in use when the device is in operation.

[0064] The connecting unit includes a connector 16, one end of which is fixedly connected to a plug rod 17. A socket 19 is fixedly connected inside the air duct 2. The plug rod 17 is inserted into the socket 19, and the two are connected by a first spring 18. The connector 16 has a circular structure, and the inner wall of the connector 16 is inclined (or a [missing information - likely a design element] can be provided). Figure 4 (A stepped surface that is wider at the top and narrower at the bottom in the direction of the airflow) so that when the airflow in the air duct 2 blows over the connector 16, the connector 16 can slide towards the filter 4.

[0065] The connector 16 has a first slot 20 on one side and a second slot 21 on the end face of the filter 4. The first slot 20 and the second slot 21 are staggered, and both the first slot 20 and the second slot 21 are annular slots.

[0066] When this device is in use, the connector 16 slides toward the inside of the filter element 4 under the action of wind, thereby ensuring the sealing of the filter element 4 at the connection point when this device is in use.

[0067] A fixing base 13 is fixedly connected inside the first housing 1, and a mounting block 14 is fixedly connected to the surface of the filter element 14. The mounting block 14 can be inserted into the fixing base 13, and the first pressure detection module 15 is installed in the fixing base 13. When the user needs to install or remove the filter element 4, the user only needs to align the mounting block 14 on the side of the filter element 14 with the groove on the fixing base 13, and then insert the mounting block 14 into the groove to complete the installation operation.

[0068] It also includes a conversion module and a control module. Both the conversion module and the control module are connected to the pressure sensor 15. The control module is used to control the opening and closing of the valve plate structure 5. The first pressure detection module 15 receives the pressure signal and transmits the pressure signal to the conversion module after the pressure exceeds the predetermined value. The conversion module then transmits the signal to the control module, thereby controlling the valve plate structure 5.

[0069] An electric valve 29 is also provided on the fixed base 13. The electric valve 29 can be opened and closed. When the electric valve 29 is closed, the mounting block 14 can enter into the fixed base 13. When the electric valve 29 is opened, the mounting block 14 can be fixed in the fixed base 13. A second pressure detection module 30 is also provided in the fixed base 13. The second pressure detection module 30 is connected to the fixed base 13 by a second spring 31. When the mounting block 14 is inserted into the fixed base 13, the second pressure detection module 30 and the second spring 31 press downward, causing the electric valve 29 to open.

[0070] The operating steps of the first pressure detection module 15, the second pressure detection module 29, the electric valve 29, and the control module are as follows:

[0071] Step one: After the user inserts the mounting block 14 into the fixing seat 13, the mounting block 14 presses the second pressure detection module 30 and the second spring 31. At this time, the control module can open the electric valve 29, thereby closing the open end of the fixing seat 13 and fixing the mounting block 14 in the fixing seat 13.

[0072] Step two: When the filter element 4 is blown by the wind, it is pushed by the wind, causing the first pressure detection module 30 to detect pressure. When the pressure value is greater than the threshold, the control module can move the gate structure 5 to change the air duct.

[0073] Step 3: After the air duct is changed, the pressure detected by the first pressure detection module 15 decreases. At this time, the control module can control the electric valve 29 to close the electric valve 29. At this time, the second spring 31 can push the mounting block 14 upward, so that part of the mounting block 14 extends out of the fixed seat 13.

[0074] Example 2

[0075] Depend on Figure 10 , 11 As shown in 12, 13, 15, and 16, this invention discloses a filter element structure, including a first outer shell 1 and two filter elements 4. The first outer shell 1 has an air duct 2, and a partition 3 is fixedly connected within the first outer shell 1. The two filter elements 4 are respectively installed on both sides of the partition 3. One end of each filter element 4 is open and communicates with the air duct 2. A gate structure 5 is provided within the first outer shell 1, which can block the air duct 2, allowing the air duct 2 to alternately communicate with the filter elements 4.

[0076] The filter element 4 comprises multiple units, with the end of the preceding unit inserted into the following unit, and adjacent units being threaded together. Each unit contains a filter screen, and the end of each unit has a mesh structure.

[0077] A connecting unit is provided inside the air duct 2. Air is blown into the filter element 4 through the connecting unit, and one end of the connecting unit can slide into the interior of the filter element 4.

[0078] The first housing 1 is also provided with two first pressure detection modules 15. Each first pressure detection module 15 corresponds to a filter element 4. The first pressure detection module 15 is used to detect the pressure of the filter element 4 under the blowing of wind. When the first pressure detection module 15 detects that the pressure of the filter element 14 is greater than the threshold, the gate structure 5 can close the inlet of the corresponding filter element 14, and at the same time the inlet of the other filter element 14 can be opened.

[0079] When this device is in use, it is equipped with two filter elements 4, which can be used alternately. This allows the device to be used without stopping. When the amount of dust collected in one of the filter elements 4 is too large, the air duct 2 entering that filter element 4 can be closed, making it convenient for the user to replace it.

[0080] When this device is in use, when a certain amount of dust is loaded into one of the filter elements 4, the thrust on the filter element 4 increases while the air volume in the air duct 2 remains unchanged. This thrust is detected by the first pressure detection module 15. When the pressure is greater than a certain value, the gate structure 5 at the corresponding position can be closed, thereby preventing air from entering the filter element 4 so that the user can replace it.

[0081] The filter element 4 has a multi-layer structure, which allows dust particles of different sizes to be collected in different units. This not only increases the service life of the filter element 4, but also allows for the partitioning and storage of dust.

[0082] The gate structure 5 includes a sealing plate 25 and a first gear 22. The sealing plate 25 is provided with teeth, and the first gear 22 meshes with the teeth. The sealing plate 22 can slide inside the first housing 1. Two through holes 24 are provided on the sealing plate 22. When the sealing plate 25 slides to the first predetermined position, the air in the air duct can enter one of the filter elements 4 through one of the through holes. When the sealing plate 25 slides to the second predetermined position, the air in the air duct can enter the other filter element 4 through the other through hole.

[0083] A rotating component 23 is coaxially fixed to the first gear 22, and a guide rail 26 is fixed to the inner wall of the first housing 1. The sealing plate 22 passes through the guide rail 26, and the rotating component 23 passes through the first housing 1 and extends out of the first housing 1.

[0084] When the pressure detected by the first pressure detection module 15 is large, the first pressure detection module 15 can make the rotating part 23 rotate. When the rotating part 23 rotates, the rotating part 23 can drive the first gear 22 to rotate, thereby making the sealing plate 25 slide, and then selecting the filter element 4 for use.

[0085] The rotating component 23 can be a structure of a motor and an output shaft, with the output shaft fixed to the first gear 22.

[0086] The connecting unit includes a connector 16, one end of which is fixedly connected to a plug rod 17. A socket 19 is fixedly connected inside the air duct 2. The plug rod 17 is inserted into the socket 19, and the two are connected by a first spring 18. The connector 16 has a circular structure, and the inner wall of the connector 16 is inclined (or a [missing information - likely a design element] can be provided). Figure 4 (A stepped surface that is wider at the top and narrower at the bottom in the direction of the airflow) so that when the airflow in the air duct 2 blows over the connector 16, the connector 16 can slide towards the filter 4.

[0087] The connector 16 has a first slot 20 on one side and a second slot 21 on the end face of the filter 4. The first slot 20 and the second slot 21 are staggered, and both the first slot 20 and the second slot 21 are annular slots.

[0088] When this device is in use, the connector 16 slides toward the inside of the filter element 4 under the action of wind, thereby ensuring the sealing of the filter element 4 at the connection point when this device is in use.

[0089] A fixing base 13 is fixedly connected inside the first housing 1, and a mounting block 14 is fixedly connected to the surface of the filter element 14. The mounting block 14 can be inserted into the fixing base 13, and the first pressure detection module 15 is installed in the fixing base 13. When the user needs to install or remove the filter element 4, the user only needs to align the mounting block 14 on the side of the filter element 14 with the groove on the fixing base 13, and then insert the mounting block 14 into the groove to complete the installation operation.

[0090] It also includes a conversion module and a control module. Both the conversion module and the control module are connected to the pressure sensor 15. The control module is used to control the opening and closing of the valve plate structure 5. The first pressure detection module 15 receives the pressure signal and transmits the pressure signal to the conversion module after the pressure exceeds the predetermined value. The conversion module then transmits the signal to the control module, thereby controlling the valve plate structure 5.

[0091] An electric valve 29 is also provided on the fixed base 13. The electric valve 29 can be opened and closed. When the electric valve 29 is closed, the mounting block 14 can enter into the fixed base 13. When the electric valve 29 is opened, the mounting block 14 can be fixed in the fixed base 13. A second pressure detection module 30 is also provided in the fixed base 13. The second pressure detection module 30 is connected to the fixed base 13 by a second spring 31. When the mounting block 14 is inserted into the fixed base 13, the second pressure detection module 30 and the second spring 31 press downward, causing the electric valve 29 to open.

[0092] The operating steps of the first pressure detection module 15, the second pressure detection module 29, the electric valve 29, and the control module are as follows:

[0093] Step one: After the user inserts the mounting block 14 into the fixing seat 13, the mounting block 14 presses the second pressure detection module 30 and the second spring 31. At this time, the control module can open the electric valve 29, thereby closing the open end of the fixing seat 13 and fixing the mounting block 14 in the fixing seat 13.

[0094] Step two: When the filter element 4 is blown by the wind, it is pushed by the wind, causing the first pressure detection module 30 to detect pressure. When the pressure value is greater than the threshold, the control module can move the gate structure 5 to change the air duct.

[0095] Step 3: After the air duct is changed, the pressure detected by the first pressure detection module 15 decreases. At this time, the control module can control the electric valve 29 to close the electric valve 29. At this time, the second spring 31 can push the mounting block 14 upward, so that part of the mounting block 14 extends out of the fixed seat 13.

[0096] Example 3

[0097] Depend on Figure 11-16 This invention discloses a filter element sealing structure, comprising a first outer shell 1 and two filter elements 4. The first outer shell 1 has an air duct 2, and a partition 3 is fixedly connected within the first outer shell 1. The two filter elements 4 are respectively installed on both sides of the partition 3, with one end of each filter element 4 open and communicating with the air duct 2. A gate structure 5 is provided within the first outer shell 1, which can block the air duct 2, allowing the air duct 2 to alternately communicate with the filter elements 4.

[0098] The filter element 4 comprises multiple units, with the end of the preceding unit inserted into the following unit, and adjacent units being threaded together. Each unit contains a filter screen, and the end of each unit has a mesh structure.

[0099] A connecting unit is provided inside the air duct 2. Air is blown into the filter element 4 through the connecting unit, and one end of the connecting unit can slide into the interior of the filter element 4.

[0100] The first housing 1 is also provided with two first pressure detection modules 15. Each first pressure detection module 15 corresponds to a filter element 4. The first pressure detection module 15 is used to detect the pressure of the filter element 4 under the blowing of wind. When the first pressure detection module 15 detects that the pressure of the filter element 14 is greater than the threshold, the gate structure 5 can close the inlet of the corresponding filter element 14, and at the same time the inlet of the other filter element 14 can be opened.

[0101] When this device is in use, it is equipped with two filter elements 4, which can be used alternately. This allows the device to be used without stopping. When the amount of dust collected in one of the filter elements 4 is too large, the air duct 2 entering that filter element 4 can be closed, making it convenient for the user to replace it.

[0102] When this device is in use, when a certain amount of dust is loaded into one of the filter elements 4, the thrust on the filter element 4 increases while the air volume in the air duct 2 remains unchanged. This thrust is detected by the first pressure detection module 15. When the pressure is greater than a certain value, the gate structure 5 at the corresponding position can be closed, thereby preventing air from entering the filter element 4 so that the user can replace it.

[0103] The filter element 4 has a multi-layer structure, which allows dust particles of different sizes to be collected in different units. This not only increases the service life of the filter element 4, but also allows for the partitioning and storage of dust.

[0104] The gate structure 5 includes a second gear 27 and a valve plate 28. There are two valve plates 28. The second gear 27 is located outside the first housing 1 and between the two valve plates 28. The second gear 27 meshes with the two valve plates 28 respectively, so that when the second gear 27 rotates, the two valve plates 28 can slide in opposite directions. The lower end of the valve plate 28 is inserted into the first housing 1.

[0105] The second gear 27 can be controlled by a motor.

[0106] The connecting unit includes a connector 16, one end of which is fixedly connected to a plug rod 17. A socket 19 is fixedly connected inside the air duct 2. The plug rod 17 is inserted into the socket 19, and the two are connected by a first spring 18. The connector 16 has a circular structure, and the inner wall of the connector 16 is inclined (or a [missing information - likely a design element] can be provided). Figure 4 (A stepped surface that is wider at the top and narrower at the bottom in the direction of the airflow) so that when the airflow in the air duct 2 blows over the connector 16, the connector 16 can slide towards the filter 4.

[0107] The connector 16 has a first slot 20 on one side and a second slot 21 on the end face of the filter 4. The first slot 20 and the second slot 21 are staggered, and both the first slot 20 and the second slot 21 are annular slots.

[0108] When this device is in use, the connector 16 slides toward the inside of the filter element 4 under the action of wind, thereby ensuring the sealing of the filter element 4 at the connection point when this device is in use.

[0109] A fixing base 13 is fixedly connected inside the first housing 1, and a mounting block 14 is fixedly connected to the surface of the filter element 14. The mounting block 14 can be inserted into the fixing base 13, and the first pressure detection module 15 is installed in the fixing base 13. When the user needs to install or remove the filter element 4, the user only needs to align the mounting block 14 on the side of the filter element 14 with the groove on the fixing base 13, and then insert the mounting block 14 into the groove to complete the installation operation.

[0110] An electric valve 29 is also provided on the fixed base 13. The electric valve 29 can be opened and closed. When the electric valve 29 is closed, the mounting block 14 can enter into the fixed base 13. When the electric valve 29 is opened, the mounting block 14 can be fixed in the fixed base 13. A second pressure detection module 30 is also provided in the fixed base 13. The second pressure detection module 30 is connected to the fixed base 13 by a second spring 31. When the mounting block 14 is inserted into the fixed base 13, the second pressure detection module 30 and the second spring 31 press downward, causing the electric valve 29 to open.

[0111] The operating steps of the first pressure detection module 15, the second pressure detection module 29, the electric valve 29, and the control module are as follows:

[0112] Step one: After the user inserts the mounting block 14 into the fixing seat 13, the mounting block 14 presses the second pressure detection module 30 and the second spring 31. At this time, the control module can open the electric valve 29, thereby closing the open end of the fixing seat 13 and fixing the mounting block 14 in the fixing seat 13.

[0113] Step two: When the filter element 4 is blown by the wind, it is pushed by the wind, causing the first pressure detection module 30 to detect pressure. When the pressure value is greater than the threshold, the control module can move the gate structure 5 to change the air duct.

[0114] Step 3: After the air duct is changed, the pressure detected by the first pressure detection module 15 decreases. At this time, the control module can control the electric valve 29 to close the electric valve 29. At this time, the second spring 31 can push the mounting block 14 upward, so that part of the mounting block 14 extends out of the fixed seat 13.

[0115] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0116] Although embodiments of the invention have 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 embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter element sealing structure, comprising a first outer shell (1), a second outer shell (29), and a filter element (4), characterized in that: The filter element (4) has two parts. A mounting block (14) is fixedly connected to the end of the filter element (4). A fixing seat (13) is fixedly connected inside the second housing (29). The fixing seat (13) has an installation groove inside. The mounting block (14) can be inserted into the installation groove. A rotating plate (33) that can rotate is also provided inside the second housing (29). A rotating cover plate (30) that can rotate is also provided on the second housing (29). There are two cover plates (30). The two cover plates (30) correspond to the two filter elements (4). The two filter elements (4) are separated by a partition plate (3). The rotating plate (33) is installed on the partition plate (3). A horizontally movable linkage rod (34) is provided inside the partition plate (3). When the cover plate (30) is closed, the linkage rod (34) can move downward. An indicator rod (37) is also provided inside the partition (3). The indicator rod (37) can move downward together with the linkage rod (34). After the linkage rod (34) moves downward, the indicator rod (37) can move downward and press against the linkage rod (34). When the rotating plate (33) is blown by the airflow from the filter element (4), both the linkage rod (34) and the indicator rod (37) remain in their original positions. When the airflow inside the filter element (4) disappears, the rotating plate (33) can be reset and the linkage rod (34) can be pulled, causing the indicator rod (37) to move upward. The partition (3) is also provided with a third spring (39), and a top plate (38) is fixed to the upper end of the third spring (39). A fourth spring (44) is also provided between the linkage rod (34) and the top plate (38). The fourth spring (44) can reset the linkage rod (34) in the horizontal direction. The surface of the second outer shell (29) is provided with an indicator hole (32), an indicator rod (37) is disposed in the indicator hole (32), and the lower end face of the indicator rod (37) is provided with a first inclined surface. One end of the linkage rod (34) is provided with a second inclined surface, so that when the linkage rod (34) slides, the first inclined surface and the second inclined surface can cooperate with each other to allow the indicator rod (37) to extend out of the indicator hole (32); A base plate (35) is also fixedly connected to the indicator rod (37). The base plate (35) extends to one side and is inserted into the mounting groove, and the mounting block (14) can press on the base plate (35). A rod (43) capable of moving up and down is installed inside the linkage rod (34). A hinge (40) is fixedly connected to the rotating plate (33), and a turntable (41) is fixedly connected to the hinge (40). A notch (42) is provided on the turntable (41). The rod (43) can fall into the notch (42) under its own weight. The upper end of the rod (43) is installed in the sliding part (45), and the rod (43) can swing in the sliding part (45) so that when the turntable (41) is reset, the side wall of the notch (42) can move the rod (43) and drive the linkage rod (34) to slide.

2. The filter element sealing structure according to claim 1, characterized in that: A locking rod (31) is rotatably provided on the cover plate (30). A locking block (36) is fixed to the end of the locking rod (31). The upper end of the locking block (36) is a plane, and its lower end is an inclined surface. The lower end of the locking block (36) abuts against the linkage rod (34) so ​​that when the locking rod (31) rotates, the linkage rod (34) can move up and down accordingly.

3. The filter element sealing structure according to claim 2, characterized in that: The upper surface of the top plate (38) has balls that can roll freely, and the linkage rod (34) presses on the balls.

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