A combined oil mist filtering device

Abstract

The present invention relates to the technical field of oil mist filtration, and discloses a combined oil mist filtering device, comprising a shell, wherein a cover groove is provided on the upper surface of the shell, a top cover is arranged on the top of the shell, the bottom of the top cover is plugged into the inside of the cover groove, an air outlet pipe is fixedly penetrated inside the top cover, and the present invention causes a main gear and a rotating seat to rotate through the operation of a motor, and under the transmission of a slave gear, a lower gear one and a lower gear two rotate, a rotating rod one causes a rotating drum and an upper gear to rotate through a rectangular rod, and a clamping seat connected by tooth meshing rotates, and the clamping seat drives a filter cartridge to rotate, and the rotating filter cartridge can adjust the direction so that the oil mist entering from the fixed oil mist hole can better contact and filter with different surface positions of the filter cartridge, and the oil dirt in the filter cartridge can also be thrown out by rotating centrifugation, and at the same time, the inner wall of the filter cartridge can be cleaned by a rotating scraper three to reduce blockage, thereby increasing the service life of the filter cartridge.

Description

Technical Field

[0001] The invention relates to the technical field of oil mist filtering, in particular to a combined oil mist filtering device. Background Art

[0002] Oil mist filtering equipment is an industrial environmental protection equipment installed on machine tools to collect and purify pollutants such as oil mist and dust generated by machine tools during processing, filter droplets or oil smoke to prevent them from entering subsequent working areas, improve safety of use, and reduce the harm of oil mist to personnel and equipment. The existing oil mist filtering device has a fixed structure and lacks a modular structure, which makes the internal filter element replacement steps complicated and difficult to maintain and clean. Therefore, there is a lack of a combined oil mist filtering device to solve the above problems. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a combined oil mist filtering device, which solves the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, according to one aspect of the present invention, more specifically, a combined oil mist filtering device comprises a shell, the upper surface of the shell is provided with a cover groove, the top of the shell is provided with a top cover, the bottom of the top cover is plugged into the inside of the cover groove, an air outlet pipe is fixed inside the top cover, a plurality of through-type oil mist holes are provided on the outer surface of the shell, a rotating seat is rotatably connected at the center of the lower surface of the shell, a spiral blade is fixed on the upper surface of the rotating seat, a filter cartridge is rotatably connected inside the rotating seat and the inner side of the spiral blade, a bottom groove is provided on the lower surface of the shell, a bracket 1 is fixed inside the bottom groove, a motor is fixed on a lower surface of the bracket, a rotating shaft 1 is fixed at the center of the lower surface of the rotating seat, and the bottom end of the rotating shaft 1 is penetrated The cam is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate.

[0005] Furthermore, a rotating rod 1 is fixed at the center of the upper surface of the lower gear 1, the top end of the rotating rod 1 passes through the inside of the cover groove, an inner groove is opened in the top cover, a clamping seat is rotatably connected inside the inner groove, the bottom end of the clamping seat passes through the inside of the outer shell, the left side of the inner groove is rotatably connected to the upper gear, a rotating drum is fixed on the lower surface of the upper gear, the rotating drum passes through the inside of the outer shell, a rectangular rod is fixed to the top of the rotating rod 1, the rectangular rod is plugged into the inside of the rotating drum, a plurality of teeth are provided on the outer surface of the clamping seat, and the clamping seat is meshed and connected with the upper gear through the teeth.

[0006] Furthermore, the outer surface of the rotating rod is slidably connected to a lifting frame, the upper and lower ends of the right side of the lifting frame are respectively located above and below the spiral blade, and are both rotatably connected to running wheels, and scraper strips 2 are fixed to the upper and lower inner sides of the lifting frame.

[0007] Furthermore, a bracket 2 is fixed at the lower part of the exhaust pipe, and an impeller is rotatably connected to the upper surface of the bracket 2. A rectangular groove is opened at the center of the lower surface of the rotating seat, and a rectangular block is inserted into the rectangular groove. A rotating rod 2 is fixed to the upper surface of the rectangular block. The top end of the rotating rod 2 penetrates the upper surface of the bracket 2 and is fixedly connected to the impeller. A scraper strip 3 is fixed to the lower surface of the rotating seat inside the filter cartridge.

[0008] Furthermore, an annular inner cavity is provided inside the clamping seat, a barrel groove is provided on the lower surface of the clamping seat, a plurality of side grooves are provided on the lower surface of the inner cavity, the side grooves are connected to the inner cavity, a lifting ring is slidably connected inside the inner cavity, the bottom end of the lifting ring passes through the inner cavity of the barrel groove and is fixed with a pressure plate, a plurality of springs are fixed between the upper surface of the lifting ring and the upper surface of the inner cavity, a slide is slidably connected inside the side groove, the bottom end of the slide is located in the barrel groove and a clamp is fixed thereon, and the top end of the slide is located in the inner cavity and a gear rack is integrally formed therewith, vertical frames are fixed on both sides of the gear rack inside the inner cavity, a transmission gear is rotatably connected to the gear rack between the vertical frames, and a plurality of slideways are provided below the outer surface of the lifting ring, the slideways are grouped in pairs, and the two ends of the gear rack away from the slide are respectively connected to the inside of two slideways.

[0009] Furthermore, the outer surface of the top cover is symmetrically provided with spring grooves, the inner part of the spring grooves is slidably connected with a spring card, a spring 2 is fixed between the side of the spring card away from the outer shell and the inner part of the spring groove, the outer surface of the outer shell is symmetrically provided with insertion holes, the insertion holes penetrate into the cover groove, the end of the spring card away from the spring groove is located above the inner part of the insertion hole, the inner part of the insertion hole is slidably connected with a slider, the outer surface of the outer shell is slidably connected with a slip ring, and the two sliders are integrally formed with the slip ring.

[0010] Furthermore, the upper parts of the two opposite ends of the sliding blocks are rounded structures, and the lower part of the end of the spring clip away from the spring groove is an inclined surface structure.

[0011] Furthermore, the inner wall of the gear ring is provided with a plurality of tooth grooves, and the gear ring is meshed and connected with the driving gear through the tooth grooves. The outer surface of the lifting ring and the upper surface of the gear rack are provided with a plurality of tooth grooves, and the lifting ring and the gear rack are meshed and connected with the transmission gear through the tooth grooves. The gear rack is a U-shaped structure.

[0012] Furthermore, the opposite sides of the plurality of clips are in contact with the outer surface of the filter cartridge, and the lower surface of the pressing sheet is in contact with the upper surface of the filter cartridge.

[0013] Furthermore, the scraper strip 1 is in contact with the inner surface of the outer shell, the scraper strip 3 is in contact with the inner surface of the filter cartridge, and the opposite ends of the two scraper strips 2 are respectively in contact with the upper and lower surfaces of the spiral blade.

[0014] The beneficial effects of the combined oil mist filtering device of the present invention are:

[0015] When the present invention is in use, the main gear and the rotating seat are rotated by the operation of the motor, and the lower gear one and the lower gear two are rotated under the transmission of the slave gear, and the rotating rod one rotates the rotating drum and the upper gear through the rectangular rod, and rotates the clamping seat connected by the teeth meshing, and the clamping seat drives the filter cartridge to rotate. The rotating filter cartridge can adjust the direction so that the oil mist entering the fixed oil mist hole can be better contacted and filtered with different surface positions of the filter cartridge, and the oil stains in the filter cartridge can also be thrown out by rotating centrifugation. At the same time, the inner wall of the filter cartridge can be cleaned by the rotating scraper three to reduce blockage, thereby increasing the service life of the filter cartridge; when the spiral blade rotates, the lifting frame is driven to rise and fall by the roller running wheel, and the oil stains on the surface of the spiral blade are cleaned by the scraper two, and the scraper one rotates with the gear ring under the transmission of the driving gear to clean the inner wall of the shell, so that the oil stains can be discharged from the drain hole, reducing the residual oil mist inside the device and reducing the burden for subsequent manual cleaning;

[0016] When the filter cartridge needs to be replaced and installed, the two sliders move up by pulling the slip ring, and the rounded end pushes the spring card to retract it, thereby releasing the connection between the top cover and the outer shell. After lifting the top cover, the used filter cartridge can be removed, and it is convenient for personnel to clean the exposed interior of the device. After placing a new filter cartridge inside the rotating seat and the spiral blade, the top cover can be directly pressed down to complete the filter cartridge fixation and top cover fixation connection operations. The present invention divides the structure into three modules: filter cartridge, outer shell, and top cover, which makes disassembly convenient and quick, maintenance and cleaning simple, and reduces the difficulty of personnel operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the housing in the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of the filter cartridge and the clamping seat in the present invention;

[0022] Figure 5 For the present invention Figure 4 The schematic diagram of the structure after the enlargement of A in the middle;

[0023] Figure 6 It is a schematic diagram of the internal structure of the clamping seat in the present invention;

[0024] Figure 7 Schematic diagram of the structure of the transposition in the present invention.

[0025] In the figure: 1, shell; 2, cover groove; 3, top cover; 4, air outlet pipe; 5, oil mist hole; 6, rotating seat; 7, spiral blade; 8, filter cartridge; 9, bottom groove; 10, bracket 1; 11, rotating shaft 1; 12, motor; 13, main gear; 14, slave gear; 15, lower gear 1; 16, lower gear 2; 17, rotating groove; 18, rotating shaft 2; 19, driving gear; 20, gear ring; 21, scraper 1; 22, rotating rod 1; 23, lifting frame; 24, running wheel; 25, scraper 2; 26, inner groove; 27, clamping seat; 28, upper gear ; 29. ​​Rotating drum; 30. Rectangular rod; 31. Drain hole; 32. Teeth; 33. Bracket 2; 34. Impeller; 35. Rotating rod 2; 36. Rectangular groove; 37. Rectangular block; 38. Inner cavity; 39. Side groove; 40. Cylinder groove; 41. Lifting ring; 42. Pressing plate; 43. Spring 1; 44. Slide; 45. Clip; 46. Gear rack; 47. Vertical rack; 48. Transmission gear; 49. Slide; 50. Slip ring; 51. Spring groove; 52. Spring card; 53. Spring 2; 54. Socket; 55. Sliding block; 56. Scraper 3. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0027] like Figure 1-7As shown, according to one aspect of the present invention, a combined oil mist filtering device is provided, including a shell 1, a cover groove 2 is provided on the upper surface of the shell 1, a top cover 3 is arranged on the top of the shell 1, the bottom of the top cover 3 is plugged into the inside of the cover groove 2, an air outlet pipe 4 is fixedly penetrated inside the top cover 3, and the air outlet pipe 4 is connected to an external fan or air pump, a plurality of through-type oil mist holes 5 are provided on the outer surface of the shell 1, and the external oil mist enters the device through the plurality of oil mist holes 5 for filtration, a rotating seat 6 is rotatably connected at the center of the lower surface of the inner part of the shell 1, a spiral leaf 7 is fixed on the upper surface of the rotating seat 6, and part of the oil mist will remain and stick to the spiral leaf 7 when it contacts the spiral leaf 7, thereby reducing the filtration burden of the filter cartridge 8 to a certain extent, a filter cartridge 8 is arranged inside the rotating seat 6 and on the inner side of the spiral leaf 7, and the filter cartridge 8 is only placed in the rotating seat 6 and the spiral leaf 7, and is not fixedly connected to the two, a bottom groove 9 is provided on the lower surface of the shell 1, a bracket 10 is fixed inside the bottom groove 9, and the lower surface of the bracket 10 is fixed A motor 12 is fixed, and a rotating shaft 11 is fixed at the center of the lower surface of the rotating seat 6. The bottom end of the rotating shaft 11 penetrates the lower surface of the bracket 10 and is fixedly connected to the top of the output shaft of the motor 12. The outer surface of the rotating shaft 11 is located between the bracket 10 and the inner upper surface of the bottom groove 9, and a main gear 13 is fixed thereon. The inner upper surface of the bottom groove 9 is located on the left and right sides of the main gear 13 and is rotatably connected to slave gears 14. The two slave gears 14 are meshed and connected to lower gears 15 and 16 on the opposite sides. A gear ring 20 is embedded on the inner lower surface of the shell 1, and the gear ring 20 is rotatably connected to the shell 1. A rotating groove 17 is opened at the inner side of the gear ring 20 at the lower part of the shell 1. A driving gear 19 is rotatably connected inside the rotating groove 17. A rotating shaft 28 is fixed between the driving gear 19 and the lower gear 2 16. A scraper strip 21 is fixed on the upper surface of the gear ring 20. A plurality of through-type drainage holes 31 are opened on the inner lower surface of the shell 1, and the drainage holes 31 are connected to an external drainage pipe.

[0028] In this embodiment, a rotating rod 22 is fixed at the center of the upper surface of the lower gear 15, and the top end of the rotating rod 22 passes through the inside of the cover groove 2. An inner groove 26 is opened inside the top cover 3, and a clamping seat 27 is rotatably connected inside the inner groove 26. The bottom end of the clamping seat 27 passes through the inside of the outer shell 1, and an upper gear 28 is rotatably connected to the left side of the inner groove 26. A rotating drum 29 is fixed on the lower surface of the upper gear 28, and the rotating drum 29 passes through the inside of the outer shell 1. A rectangular rod 30 is fixed to the top of the rotating rod 22, and the rectangular rod 30 is plugged into the inside of the rotating drum 29. A plurality of teeth 32 are provided on the outer surface of the clamping seat 27, and the clamping seat 27 is meshed and connected with the upper gear 28 through the teeth 32.

[0029] In this embodiment, the outer surface of the rotating rod 22 is slidably connected to a lifting frame 23, the upper and lower ends of the right side of the lifting frame 23 are respectively located above and below the spiral blade 7, and are both rotatably connected to a running wheel 24, and scraper strips 25 are fixed to the upper and lower sides of the inner side of the lifting frame 23.

[0030] In this embodiment, a bracket 2 33 is fixed at the lower part of the outlet pipe 4, and an impeller 34 is rotatably connected to the upper surface of the bracket 2 33. A rectangular groove 36 is opened at the center of the lower surface of the inner part of the rotating seat 6, and a rectangular block 37 is inserted into the rectangular groove 36. A rotating rod 2 35 is fixed to the upper surface of the rectangular block 37. The top of the rotating rod 2 35 penetrates the upper surface of the bracket 2 33 and is fixedly connected to the impeller 34. A scraper 3 56 is fixed to the lower surface of the inner part of the rotating seat 6 inside the filter cartridge 8. When the rotating seat 6 rotates, the impeller 34 is rotated by the insertion of the rectangular block 37 and the rectangular groove 36, which assists the internal gas of the external air pump fan device to be discharged through the outlet pipe 4, thereby improving the exhaust efficiency.

[0031] In this embodiment, an annular inner cavity 38 is provided inside the clamping seat 27, a barrel groove 40 is provided on the lower surface of the clamping seat 27, a plurality of side grooves 39 are provided on the lower surface of the inner cavity 38, the inside of the side grooves 39 is communicated with the inside of the barrel groove 40, a lifting ring 41 is slidably connected inside the inner cavity 38, the bottom end of the lifting ring 41 passes through the inside of the barrel groove 40, and a pressing sheet 42 is fixed thereto, a plurality of springs 43 are fixed between the upper surface of the lifting ring 41 and the upper surface of the inner cavity 38, and the sliding inside of the side grooves 39 is connected to the inner surface of the barrel groove 40. The bottom end of the slide 44 is located inside the barrel groove 40 and is fixed with a clip 45. The top end of the slide 44 is located inside the inner cavity 38 and is integrally formed with a gear rack 46. Vertical frames 47 are fixed on both sides of the gear rack 46 inside the inner cavity 38. A transmission gear 48 is rotatably connected to the gear rack 46 between the vertical frames 47. A plurality of slideways 49 are provided below the outer surface of the lifting ring 41. The slideways 49 are in groups of two. The two ends of the gear rack 46 away from the slide 44 are respectively connected to the inside of the two slideways 49, such as Figure 5-6 As shown, the slideway 49 allows the gear rack 46 to slide left and right inside, and when the slideway 49 moves up and down with the lifting ring 41, it does not affect the sliding of the gear rack 46.

[0032] In this embodiment, the outer surface of the top cover 3 is symmetrically provided with a spring groove 51, and a spring card 52 is slidably connected to the inside of the spring groove 51. A spring 2 53 is fixed between the side of the spring card 52 away from the shell 1 and the inside of the spring groove 51. The outer surface of the shell 1 is symmetrically provided with a plug hole 54, and the plug hole 54 penetrates into the cover groove 2. The end of the spring card 52 away from the spring groove 51 is located above the inside of the plug hole 54, and a slider 55 is slidably connected to the bottom of the plug hole 54. The outer surface of the shell 1 is slidably connected to a slip ring 50, and the two sliders 55 are integrally formed with the slip ring 50.

[0033] In this embodiment, the two sliders 55 have rounded structures above the opposite ends, and the spring clip 52 has an inclined structure below the end away from the spring groove 51. When the slip ring 50 is lifted, the two sliders 55 move upward and push the spring clip 52 inward through the rounded ends to release the connection between the top cover 3 and the outer shell 1.

[0034] In this embodiment, a plurality of tooth grooves are provided on the inner wall of the gear ring 20, and the gear ring 20 is meshed and connected with the driving gear 19 through the tooth grooves. A plurality of tooth grooves are provided on the outer surface of the lifting ring 41 and the upper surface of the gear rack 46, and the lifting ring 41 and the gear rack 46 are meshed and connected with the transmission gear 48 through the tooth grooves. The gear rack 46 is a U-shaped structure.

[0035] In this embodiment, the opposite sides of multiple clips 45 are in contact with the outer surface of the filter cartridge 8, and the lower surface of the pressing plate 42 is in contact with the upper surface of the filter cartridge 8. When the filter cartridge 8 enters the cartridge groove 40, the pressing plate 42 will push the lifting ring 41 up, and move the gear rack 46 and the slide 44 under the transmission of the transmission gear 48, and clamp the upper part of the outer surface of the filter cartridge 8 through the rubber clips 45, so that the filter cartridge 8 and the clamping seat 27 are fixedly connected.

[0036] In this embodiment, scraper strip 1 21 is in contact with the inner surface of the outer shell 1, and scraper strip 3 56 is in contact with the inner surface of the filter cartridge 8. Scraper strip 3 56 is made of rubber material and has certain elasticity and hardness. When in contact with the surface of the spiral blade 7, it can scrape off the stains on its surface during relative movement, such as wiper strips, glass cleaning strips, etc. The opposite ends of the two scraper strips 25 are respectively in contact with the upper and lower surfaces of the spiral blade 7, so that when scraper strip 1 21 rotates with the gear ring 20, the oil stains remaining on the inner wall of the outer shell 1 can be scraped off. When the filter cartridge 8 rotates, scraper strip 3 56 scrapes the inner side of the filter cartridge 8, thereby reducing oil mist clogging, increasing the service life of the filter cartridge 8, and increasing the time interval for replacing the filter cartridge 8. When the spiral blade 7 rotates, scraper strip 25 scrapes the surface of the spiral blade 7, and the oil stains are discharged from the drain hole 31.

[0037] The working principle of the device is as follows: when in use, the motor 12 operates to rotate the main gear 13 and the rotating seat 6, and under the transmission of the slave gear 14, the lower gear 15 and the lower gear 2 16 rotate, and the rotating rod 1 22 rotates the rotating drum 29 and the upper gear 28 through the rectangular rod 30, and rotates the clamping seat 27 connected by the teeth 32, and the clamping seat 27 drives the filter cartridge 8 to rotate. The rotating filter cartridge 8 can adjust the direction so that the oil mist entering the fixed oil mist hole 5 can be better contacted and filtered with different surface positions of the filter cartridge 8, and at the same time, the filter cartridge 8 can be adjusted to the direction of the rotating filter cartridge 8. The rotating scraper bar 3 56 can clean the inner wall of the filter cartridge 8 to reduce blockage, thereby increasing the service life of the filter cartridge 8. When the spiral blade 7 as a separator rotates, the roller running wheel 24 drives the lifting frame 23 to move up and down, and the scraper bar 25 cleans the oil on the surface of the spiral blade 7. The scraper bar 1 21 rotates with the gear ring 20 under the transmission of the driving gear 19 to clean the inner wall of the housing 1, so that the oil can be discharged from the drain hole 31, reducing the residual oil mist inside the device and reducing the burden for subsequent manual cleaning.

[0038] When the filter cartridge 8 needs to be replaced and installed, the two sliders 55 move upward by pulling the sliding ring 50, and the rounded end squeezes and pushes the spring card 52 to retract it, thereby releasing the connection between the top cover 3 and the housing 1. After the top cover 3 is lifted, the used filter cartridge 8 can be removed, and it is convenient for personnel to clean the exposed inside of the device. After placing a new filter cartridge 8 inside the rotating seat 6 and the spiral leaf 7, the top cover 3 is directly pressed down (the pressing piece 42 will push the lifting ring 41 up when the filter cartridge 8 enters the barrel groove 40, and Under the transmission of the transmission gear 48, the gear rack 46 and the slide 44 move, and the outer surface of the filter cartridge 8 is clamped by the rubber clip 45, so that the filter cartridge 8 and the clamping seat 27 are fixedly connected; and the inclined surface of the spring card 52 is squeezed and retracted when it contacts the outer shell 1, and when it drops to the insertion hole 54, it is pushed by the compressed spring 2 53 to be inserted into the insertion hole 54 and fixed), so that the filter cartridge 8 and the top cover 3 can be fixed and connected, which is convenient and fast, simple to maintain and clean, and reduces the difficulty of personnel operation.

[0039] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A combined oil mist filtering device, comprising a housing (1), characterized in that: The upper surface of the shell (1) is provided with a cover groove (2), the top of the shell (1) is provided with a top cover (3), the bottom of the top cover (3) is plugged into the inside of the cover groove (2), an air outlet pipe (4) is penetrated and fixed inside the top cover (3), the outer surface of the shell (1) is provided with a plurality of through-type oil mist holes (5), a rotating seat (6) is rotatably connected at the center of the lower surface of the shell (1), a spiral blade (7) is fixed on the upper surface of the rotating seat (6), a filter cartridge (8) is provided inside the rotating seat (6) and inside the spiral blade (7), the lower surface of the shell (1) is provided with a bottom groove (9), a bracket (10) is fixed inside the bottom groove (9), a motor (12) is fixed on the lower surface of the bracket (10), a rotating shaft (11) is fixed at the center of the lower surface of the rotating seat (6), the bottom end of the rotating shaft (11) penetrates through the lower surface of the bracket (10) and is fixedly connected to the top end of the output shaft of the motor (12), The outer surface of the rotating shaft 1 (11) is located between the bracket 1 (10) and the inner upper surface of the bottom groove (9), and a main gear (13) is fixed thereto; the inner upper surface of the bottom groove (9) is located on the left and right sides of the main gear (13), and is rotatably connected to the slave gears (14); the two slave gears (14) are respectively meshed and connected to the lower gear 1 (15) and the lower gear 2 (16) on the opposite sides; a gear ring (20) is embedded in the inner lower surface of the shell (1); the gear ring (20) is rotatably connected to the shell (1); a rotating groove (17) is opened at the lower part of the shell (1) and located inside the gear ring (20); a driving gear (19) is rotatably connected inside the rotating groove (17); a rotating shaft 2 (18) is fixed between the driving gear (19) and the lower gear 2 (16); a scraper strip 1 (21) is fixed on the upper surface of the gear ring (20); and a plurality of through-type drainage holes (31) are opened on the inner lower surface of the shell (1); A rotating rod (22) is fixed at the center of the upper surface of the lower gear (15), the top end of the rotating rod (22) passes through the inside of the cover groove (2), an inner groove (26) is provided inside the top cover (3), a clamping seat (27) is rotatably connected inside the inner groove (26), the bottom end of the clamping seat (27) passes through the inside of the outer shell (1), an upper gear (28) is rotatably connected to the left side of the inner groove (26), a rotating drum (29) is fixed on the lower surface of the upper gear (28), the rotating drum (29) passes through the inside of the outer shell (1), a rectangular rod (30) is fixed on the top end of the rotating rod (22), the rectangular rod (30) is plugged into the inside of the rotating drum (29), a plurality of teeth (32) are provided on the outer surface of the clamping seat (27), and the clamping seat (27) is meshed and connected with the upper gear (28) through the teeth (32); The outer surface of the rotating rod (22) is slidably connected to a lifting frame (23), the upper and lower ends of the right side of the lifting frame (23) are respectively located above and below the spiral blade (7), and are both rotatably connected to a running wheel (24), and scraper strips (25) are fixed to the upper and lower sides of the inner side of the lifting frame (23); An annular inner cavity (38) is provided inside the clamping seat (27), a barrel groove (40) is provided on the lower surface of the clamping seat (27), a plurality of side grooves (39) are provided on the lower surface of the inner cavity (38), the inside of the side grooves (39) is communicated with the inside of the barrel groove (40), a lifting ring (41) is slidably connected to the inside of the inner cavity (38), the bottom end of the lifting ring (41) passes through the inside of the barrel groove (40) and is fixed with a pressing sheet (42), a plurality of springs (43) are fixed between the upper surface of the lifting ring (41) and the upper surface of the inner cavity (38), and a slide frame (41) is slidably connected to the inside of the side grooves (39). 44), the bottom end of the slide (44) is located inside the barrel groove (40) and is fixed with a clip (45), the top end of the slide (44) is located inside the inner cavity (38) and is integrally formed with a tooth frame (46), the inner cavity (38) is located on both sides of the tooth frame (46) and is fixed with vertical frames (47), between the vertical frames (47) and located above the tooth frame (46) and is rotatably connected with a transmission gear (48), a plurality of slideways (49) are opened below the outer surface of the lifting ring (41), the slideways (49) are in groups of two, and the two ends of the tooth frame (46) away from the slide (44) are respectively connected to the inside of two of the slideways (49); The scraper strip 1 (21) is in contact with the inner surface of the outer shell (1), and the opposite ends of the two scraper strips 2 (25) are in contact with the upper and lower surfaces of the spiral blade (7) respectively.

2. A combined oil mist filtering device according to claim 1, characterized in that: A second bracket (33) is fixed at the lower part of the outlet pipe (4), and an impeller (34) is rotatably connected to the upper surface of the second bracket (33). A rectangular groove (36) is opened at the center of the lower surface of the rotating seat (6), and a rectangular block (37) is inserted into the rectangular groove (36). A second rotating rod (35) is fixed to the upper surface of the rectangular block (37). The top end of the second rotating rod (35) passes through the upper surface of the second bracket (33) and is fixedly connected to the impeller (34). A scraper strip (56) is fixed to the lower surface of the rotating seat (6) and is located inside the filter cartridge (8). The scraper strip (56) is in contact with the inner surface of the filter cartridge (8).

3. A combined oil mist filtering device according to claim 1, characterized in that: The outer surface of the top cover (3) is symmetrically provided with spring grooves (51), and a spring clip (52) is slidably connected inside the spring groove (51). A second spring (53) is fixed between the side of the spring clip (52) away from the shell (1) and the inside of the spring groove (51). The outer surface of the shell (1) is symmetrically provided with insertion holes (54), and the insertion holes (54) penetrate into the inside of the cover groove (2). One end of the spring clip (52) away from the spring groove (51) is located above the inside of the insertion hole (54), and a slider (55) is slidably connected to the inside of the insertion hole (54). The outer surface of the shell (1) is slidably connected with a slip ring (50), and the two sliders (55) are integrally formed with the slip ring (50).

4. A combined oil mist filtering device according to claim 3, characterized in that: The upper parts of the opposite ends of the two slide blocks (55) are rounded structures, and the lower part of the end of the spring clip (52) away from the spring slot (51) is an inclined surface structure.

5. The combined oil mist filtering device according to claim 1, characterized in that: The inner wall of the gear ring (20) is provided with a plurality of tooth grooves, and the gear ring (20) is meshedly connected with the driving gear (19) via the tooth grooves. The outer surface of the lifting ring (41) and the upper surface of the gear rack (46) are provided with a plurality of tooth grooves, and the lifting ring (41) and the gear rack (46) are meshedly connected with the transmission gear (48) via the tooth grooves. The gear rack (46) is a U-shaped structure.

6. The combined oil mist filtering device according to claim 1, characterized in that: The opposite sides of the plurality of clips (45) are in contact with the outer surface of the filter cartridge (8), and the lower surface of the pressing sheet (42) is in contact with the upper surface of the filter cartridge (8).

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