Exhaust treatment device for oil-powered aircraft

Abstract

The present invention relates to the field of aircraft exhaust treatment, specifically an exhaust treatment device for oil-powered aircraft, including a three-way catalytic converter for treating aircraft exhaust gas, and also including: a primary filter box, a plurality of filter screens are arranged inside the primary filter box, and a swing mechanism for cleaning the filter screens is arranged inside the primary filter box, and the primary filter box is connected to the aircraft exhaust pipe through a connecting pipe; a treatment box, a three-way catalytic converter is arranged inside the treatment box, and the treatment box is fixedly connected to the bottom of the primary filter box through a connecting frame, and the primary filter box is connected to the treatment box through a pipeline, a motor is fixed on the top of the treatment box, and the output shaft of the motor is connected to the shaft rod one, and the shaft rod one is connected to the swing mechanism, and a secondary filtering mechanism and a regulating mechanism are arranged on the treatment box, and the regulating mechanism is connected to the shaft rod one and the secondary filtering mechanism respectively. This kind of exhaust treatment device for oil-powered aircraft realizes harmless treatment of exhaust gas and avoids pollution of the environment by exhaust gas.

Description

Technical Field

[0001] The invention relates to the field of aircraft exhaust gas treatment, in particular to an exhaust gas treatment device for oil-powered aircraft. Background Art

[0002] The exhaust gas emitted by oil-powered aircraft during operation is directly discharged into the air, so it is polluting to the air. The exhaust gas should be treated in time to reduce the pollution to the environment. In view of this, we propose an exhaust gas treatment device for oil-powered aircraft. Summary of the invention

[0003] The purpose of the present invention is to provide an exhaust gas treatment device for oil-powered aircraft to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: an exhaust gas treatment device for oil-powered aircraft, comprising a three-way catalytic converter for treating exhaust gas discharged from the aircraft, and also comprising: A primary filter box, wherein a plurality of filter screens are arranged inside the primary filter box, and a swing mechanism for cleaning the filter screens is arranged inside the primary filter box, and the primary filter box is connected to the aircraft exhaust pipe through a connecting pipe; A treatment box, a three-way catalytic converter is arranged inside the treatment box, and the treatment box is fixedly connected to the bottom of the primary filter box through a connecting frame, the primary filter box is connected to the treatment box through a pipeline, a motor is fixed on the top of the treatment box, and the output shaft of the motor is transmission-connected to shaft rod one, shaft rod one is transmission-connected to the swing mechanism, a secondary filtering mechanism and a regulating mechanism are arranged on the treatment box, and the regulating mechanism is transmission-connected to shaft rod one and the secondary filtering mechanism respectively.

[0004] Preferably, a plurality of partitions are fixed side by side at equal intervals in the middle of the inner wall of the primary filter box, and a filter screen cover is fixed between two adjacent partitions, and the cross-section of the filter screen cover is arc-shaped, the connecting pipe is located below the partition, and the connection between the pipeline and the primary filter box is located on the upper side of the filter screen cover, the bottom of the primary filter box is an inclined structure, and the bottom of the primary filter box is connected to a collecting cylinder.

[0005] Preferably, the swing mechanism includes a frame, and sliding rods are fixed on both sides of the frame, the two sliding rods are slidably connected to two suspension rods, and the two suspension rods are fixed at the bottom of two of the partitions. A disc is arranged inside the frame, and an axle rod 1 passes through and is fixedly connected to the disc at a position away from the center of the circle. The upper end of the axle rod 1 passes through and is rotatably connected to the partition located in the middle position, and its upper end is fixedly connected to the impeller, the lower end of the axle rod 1 passes through and is rotatably connected to the shaft sleeve, and the lower end of the axle rod 1 is connected to the motor transmission, and the shaft sleeve passes through and is fixedly connected to the bottom plate of the primary filter box.

[0006] Preferably, the bottoms of two adjacent partitions are fixedly connected to a bracket, and an axle pin is fixed on the bracket, and the axle pin is rotatably connected to the middle part of the rocker arm, a strip through hole is opened at the lower part of the rocker arm, and the upper end of the rocker arm is fixedly connected to a brush strip, and the brush strip is located at the inner arc surface of the corresponding filter cover, and a pin rod corresponding to the strip through hole is fixed on the sliding rod, and the pin rod is inserted and slidably connected in the corresponding strip through hole.

[0007] Preferably, the secondary filtering mechanism includes a winding box and an unwinding box fixed on both sides of the outside of the processing box, and a channel corresponding to the winding box and the unwinding box is opened on the side wall of the processing box. A winding drum is rotatably connected to the winding box, and an unwinding drum is rotatably connected to the unwinding box, and filter cotton is wound on the unwinding drum.

[0008] Preferably, two parallel mesh plates are fixed on the inner wall of the processing box in upper and lower positions, and the three-way catalytic converter is located below the mesh plates. One end of the filter cotton on the unwinding drum passes through the channel and between the two mesh plates and is wound on the winding drum.

[0009] Preferably, the winding box and the unwinding box are both made of transparent material, and are both provided with detachable covers.

[0010] Preferably, the regulating mechanism includes a slide fixed on the top of the treatment box, and a plunger is slidably connected inside the slide, and one end of the plunger is connected to the corresponding end of the slide through a spring, a slide groove is opened on the side wall of the slide, and the plunger blocks the slide groove, a lever is slidably connected in the slide groove, and the lever is fixedly connected to the plunger, and the two ends of the slide are respectively connected to the primary filter box and the treatment box through air pipe 1 and air pipe 2, the position where air pipe 1 is connected to the primary filter box is above the impeller, and the position where air pipe 2 is connected to the treatment box is between the pressure screen plate and the three-way catalytic converter.

[0011] Preferably, a suspension rod 2 and a suspension rod 3 are fixed to the bottom of the primary filter box, and the suspension rod 2 is rotatably connected to the shaft rod 2 via a fixed axis, and the shaft rod 2 is arranged parallel to the axial direction of the slide cylinder, one end of the shaft rod 2 is located in the rotating drum, and the rotating drum is coaxially arranged with the shaft rod 2, the rotating drum is coaxially fixed to one end of the shaft rod 4, the other end of the shaft rod 4 is transmission-connected to the shaft rod 1 through a bevel gear set 1, the shaft rod 4 is fixedly rotationally connected to the suspension rod 3, the side wall of the winding box passes through and is rotatably connected to the shaft rod 3 via a fixed axis, and one end of the shaft rod 3 is transmission-connected to the winding drum through a bevel gear set 3, and the other end is transmission-connected to the shaft rod 2 through a bevel gear set 2.

[0012] Preferably, one end of the second shaft rod located in the rotating cylinder is vertically fixedly connected to the slide, and the slide is slidably connected to the slider, the slider is fixedly connected to the tooth block, the inner wall of the rotating cylinder is provided with a tooth groove, and the teeth on the tooth block are engaged with the tooth groove, the second shaft rod is sleeved and slidably connected to the sliding sleeve, the tooth block is hinged to the sliding sleeve through a connecting rod, and the sliding sleeve is fixedly rotatably connected to the end of the lever away from the plunger.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the exhaust gas emitted by the oil-powered aircraft is filtered for secondary particulate matter through a filter mesh cover and filter cotton, and then the harmful gases such as CO, HC and NOx in the exhaust gas are converted into harmless carbon dioxide, water and nitrogen through oxidation and reduction through a three-way catalytic converter, thereby achieving harmless treatment of the exhaust gas and avoiding pollution of the environment by the exhaust gas.

[0014] In the present invention, the filter screen cover is automatically cleaned in real time through the swing mechanism, and the filter screen cover is kept clean and unobstructed in real time. At the same time, the impeller is driven to provide propulsion force for the exhaust gas passing through the filter screen cover, so that the exhaust gas quickly enters the treatment box and keeps the exhaust gas flowing and discharged unobstructed.

[0015] In the present invention, when the filter cotton is blocked during operation, the filter cotton is automatically replaced by the primary and secondary filter mechanisms through the transmission connection shaft of the regulating mechanism, so that the exhaust gas discharge passage is smooth, avoiding exhaust gas discharge blockage when the oil-powered aircraft is working, thereby improving the safety and stability of the oil-powered aircraft operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the general assembly cross-sectional structure of the present invention; Figure 2 for Figure 1 A is an enlarged structural diagram; Figure 3 for Figure 1 The enlarged structural diagram at B in FIG. Figure 4 It is a top view of the frame and disc structure in the present invention.

[0017] In the figure: 1. primary filter box; 2. treatment box; 3. three-way catalytic converter; 4. partition; 5. connecting pipe; 6. filter screen; 7. motor; 8. bushing; 9. shaft rod 1; 10. impeller; 11. pipeline; 12. frame; 13. disc; 14. suspension rod 1; 15. slide rod; 16. bevel gear set 1; 17. suspension rod 2; 18. shaft rod 2; 19. bevel gear set 2; 20. shaft rod 3; 21. bevel gear set 3; 22. take-up box; 23. take-up drum; 24. filter cotton; 25 , collecting cylinder; 26, connecting frame; 27, unwinding box; 28, unwinding cylinder; 29, air pipe one; 30, air pipe two; 31, screen pressing plate; 32, bracket; 33, shaft pin; 34, rocker rod; 35, brush strip; 36, strip through hole; 37, pin rod; 38, slide cylinder; 39, plunger; 40, spring; 41, slide groove; 42, lever; 43, suspension rod three; 44, shaft rod four; 45, rotating cylinder; 46, slide rack; 47, slider; 48, gear block; 49, connecting rod; 50, sliding sleeve. DETAILED DESCRIPTION

[0018] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 4 The present invention provides a technical solution: an exhaust gas treatment device for an oil-powered aircraft, comprising a three-way catalytic converter 3 for treating exhaust gas discharged from the aircraft, and also comprising: A primary filter box 1, wherein a plurality of filter screens 6 are arranged inside the primary filter box 1, and a swing mechanism for cleaning the filter screens 6 is arranged inside the primary filter box 1, and the primary filter box 1 is connected to the aircraft exhaust pipe through a connecting pipe 5; The treatment box 2 and the three-way catalytic converter 3 are arranged inside the treatment box 2, and the treatment box 2 is fixedly connected to the bottom of the primary filter box 1 through a connecting frame 26. The primary filter box 1 is connected to the treatment box 2 through a pipeline 11. A motor 7 is fixed on the top of the treatment box 2, and the output shaft of the motor 7 is transmission-connected to the shaft rod 9, and the shaft rod 9 is transmission-connected to the swing mechanism. A secondary filtering mechanism and a regulating mechanism are arranged on the treatment box 2, and the regulating mechanism is transmission-connected to the shaft rod 9 and the secondary filtering mechanism respectively.

[0020] In the present embodiment, a plurality of partitions 4 are fixed side by side at equal intervals in the middle of the inner wall of the primary filter box 1, and a filter screen cover 6 is fixed between two adjacent partitions 4, and the cross-section of the filter screen cover 6 is arc-shaped, the connecting pipe 5 is located below the partition 4, and the connection between the pipeline 11 and the primary filter box 1 is located on the upper side of the filter screen cover 6, the bottom of the primary filter box 1 is an inclined structure, and the bottom of the primary filter box 1 is connected to a collecting cylinder 25.

[0021] In this embodiment, the swing mechanism includes a frame 12, and sliding rods 15 are fixed on both sides of the frame 12, the two sliding rods 15 are slidably connected to two suspension rods 14, and the two suspension rods 14 are fixed at the bottom of two of the partitions 4. A disk 13 is arranged inside the frame 12, and an axle rod 9 passes through and is fixedly connected to a position on the disk 13 away from the center of the circle. The upper end of the axle rod 9 passes through and is rotatably connected to the partition 4 located in the middle position, and the upper end thereof is fixedly connected to the impeller 10, and the lower end of the axle rod 9 passes through and is rotatably connected to the shaft sleeve 8, and the axle rod 1 The lower end of 9 is transmission connected to the motor 7, the sleeve 8 passes through and is fixedly connected to the bottom plate of the primary filter box 1, the bottoms of the two adjacent partitions 4 are fixedly connected to the bracket 32, and the bracket 32 ​​is fixed with an axle pin 33, and the axle pin 33 is fixedly connected to the middle part of the swing rod 34 for fixed axis rotation, and the lower part of the swing rod 34 is provided with a strip through hole 36, the upper end of the swing rod 34 is fixedly connected to the brush strip 35, and the brush strip 35 is located at the inner arc surface of the corresponding filter screen cover 6, and the sliding rod 15 is fixed with a pin rod 37 corresponding to the strip through hole 36, and the pin rod 37 is inserted and slidably connected in the corresponding strip through hole 36.

[0022] In this embodiment, the secondary filtering mechanism includes a winding box 22 and an unwinding box 27 fixed on both sides of the outside of the processing box 2, and a channel corresponding to the winding box 22 and the unwinding box 27 is opened on the side wall of the processing box 2. A winding drum 23 is rotatably connected to the winding box 22, and an unwinding drum 28 is rotatably connected to the unwinding box 27. Filter cotton 24 is wound on the unwinding drum 28. Two parallel pressing plates 31 are fixed on the inner wall of the processing box 2 in an upper and lower position, and the three-way catalytic converter 3 is located below the pressing plate 31. One end of the filter cotton 24 on the unwinding drum 28 passes through the channel and between the two pressing plates 31 and is wound on the winding drum 23.

[0023] In this embodiment, the winding box 22 and the unwinding box 27 are both made of transparent material, and are provided with detachable covers on the winding box 22 and the unwinding box 27, so as to facilitate observation of the use of the filter cotton 24 and to facilitate replacement.

[0024] In this embodiment, the regulating mechanism includes a slide 38 fixed to the top of the processing box 2, and the slide 38 is slidably connected to a plunger 39 inside, and one end of the plunger 39 is connected to the corresponding end of the slide 38 through a spring 40, a slide groove 41 is opened on the side wall of the slide 38, and the plunger 39 blocks the slide groove 41, and the slide groove 41 is slidably connected to a lever 42, and the lever 42 is fixedly connected to the plunger 39, and the two ends of the slide 38 are respectively connected through the air pipe 29 and the air pipe The first air pipe 29 is connected to the first air filter box 1 and the treatment box 2. The position where the air pipe 29 is connected to the first air filter box 1 is located above the impeller 10. The position where the air pipe 29 is connected to the treatment box 2 is located between the pressure plate 31 and the three-way catalytic converter 3. The bottom of the first air filter box 1 is fixed with a second suspension rod 17 and a third suspension rod 43. The second suspension rod 17 is connected to the shaft rod 2 18 by a fixed axis rotation. The shaft rod 2 18 is arranged parallel to the axis direction of the slide cylinder 38. One end of the shaft rod 2 18 is located in the rotating cylinder 45, and the rotating cylinder 45 is provided with a plurality of air pipes 29 connected to the first air filter box 1. The drum 45 is coaxially arranged with the shaft rod 218, the drum 45 is coaxially fixed to one end of the shaft rod 44, the other end of the shaft rod 44 is connected to the shaft rod 19 through the bevel gear set 16, the shaft rod 44 is connected to the suspension rod 3 43 through a fixed axis rotation, the side wall of the winding box 22 passes through and is connected to the shaft rod 3 20 through a fixed axis rotation, and one end of the shaft rod 3 20 is connected to the winding drum 23 through the bevel gear set 3 21, and the other end is connected to the shaft rod 218 through the bevel gear set 2 The shaft rod 18 is dynamically connected at one end inside the rotating cylinder 45 and is vertically fixedly connected to the slide 46, and the slide 46 is slidably connected to the slider 47, and the slider 47 is fixedly connected to the tooth block 48. The inner wall of the rotating cylinder 45 is provided with a tooth groove, and the teeth on the tooth block 48 are engaged with the tooth groove. The shaft rod 18 is sleeved and slidably connected to the sliding sleeve 50, the tooth block 48 is hinged to the sliding sleeve 50 through a connecting rod 49, and the sliding sleeve 50 is fixedly rotatably connected to the end of the lever 42 away from the plunger 39.

[0025] Working principle and advantages of the present invention: When the exhaust gas treatment device for oil-powered aircraft is in use, the working process is as follows: like Figure 1 As shown, the entire device is installed on a petroleum-powered aircraft and connected to the exhaust pipe of the petroleum-powered aircraft through a connecting pipe 5. When the petroleum-powered aircraft is working, the motor 7 is started to work, and the exhaust gas discharged by the petroleum-powered aircraft enters the lower part of the filter screen cover 6 inside the primary filter box 1 through the connecting pipe 5. After the large particles are filtered out by the filter screen cover 6, the exhaust gas enters the upper part of the filter cotton 24 inside the treatment box 2 through the pipeline 11. Then, the small particles are further filtered and purified by the filter cotton 24, and then enters the three-way catalytic converter 3 to convert harmful gases such as CO, HC and NOx in the exhaust gas into harmless carbon dioxide, water and nitrogen through oxidation and reduction, thereby realizing harmless treatment of the exhaust gas and avoiding pollution of the environment by the exhaust gas. In addition, the particles are removed by two filtrations of the filter screen cover 6 and the filter cotton 24, so that the blockage of the three-way catalytic converter 3 is avoided, thereby improving the service life of the three-way catalytic converter 3.

[0026] As described above, after the motor 7 is started, the shaft 9 is driven to rotate, so that the shaft 9 drives the impeller 10 to rotate, so that the impeller 10 provides a propulsion force for the exhaust gas passing through the filter screen 6, so that the exhaust gas quickly enters the treatment box 2, and the exhaust gas flow is kept unobstructed. Figure 2 and Figure 3 As shown, the shaft rod 9 drives the frame 12 and the slide rods 15 on both sides thereof to move back and forth through the disc 13, so that the slide rod 15 drives the rocker rod 34 to swing back and forth through the pin rod 37, and then the rocker rod 34 drives the brush bar 35 to clean the inner arc surface of the corresponding filter screen cover 6, so as to keep the filter screen cover 6 clean and unobstructed in real time. Moreover, the filter screen cover 6 with an arc-shaped cross section can increase the filtering area and improve the exhaust gas treatment speed. The cleaned large particles are gathered in the collection tube 25 for disassembly and cleaning, so as to realize automatic cleaning without replacement and improve the exhaust gas treatment effect.

[0027] As described above, the shaft 9 rotates and drives the shaft 44 to rotate through the bevel gear set 16. Figure 3 As shown, the shaft rod 44 drives the drum 45 to rotate. When the exhaust gas discharge process is smooth, the tooth block 48 does not contact the tooth groove on the inner wall of the drum 45, so that the drum 45 cannot drive the shaft rod 2 18 to rotate. When the filter cotton 24 is blocked, the pressure on the upper side of the filter cotton 24 increases and the pressure on the lower side decreases, so that the pressure on the right side of the plunger 39 is greater than the pressure on the left side, so that the plunger 39 moves to the left and compresses the spring 40, so that the spring 40 obtains a restoring force. When the plunger 39 moves to the left, it drives the sliding sleeve 50 to move to the left through the lever 42, so that the sliding sleeve 50 pushes the tooth block 48 to approach the inner wall of the drum 45 through the connecting rod 49, and the teeth on the tooth block 48 are engaged with the tooth groove on the inner wall of the drum 45, so that the drum 45 can drive the shaft rod 2 18 to rotate, and then the shaft rod 2 18 drives the shaft rod 3 2 through the bevel gear set 2 19. 0 rotates, so that the shaft rod three 20 drives the filter cotton 24 that is blocked by the take-up drum 23 through the bevel gear set three 21, thereby realizing the automatic replacement of the filter cotton 24 between the pressure screen plates 31, thereby making the exhaust gas discharge passage smooth, avoiding the exhaust gas discharge blockage when the oil-powered aircraft is working, thereby improving the safety and stability of the oil-powered aircraft operation. At this time, the pressure difference on both sides of the plunger 39 becomes smaller, and under the action of the restoring force of the spring 40, the plunger 39 drives the lever 42 to move right and reset, so that the lever 42 drives the sliding sleeve 50 to reset, and then the sliding sleeve 50 drives the tooth block 48 away from the inner wall of the rotating drum 45 through the connecting rod 49 and resets. At this time, the shaft rod four 44 cannot drive the shaft rod two 18 to rotate, and the use of the filter cotton 24 can be observed through the transparent take-up box 22 and the unwinding box 27, so that it can be replaced when the oil-powered aircraft is not in working state.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An exhaust gas treatment device for a petroleum-powered aircraft, comprising a three-way catalytic converter (3) for treating exhaust gas emitted by the aircraft, characterized in that: Also includes: A primary filter box (1), wherein a plurality of filter screens (6) are arranged inside the primary filter box (1), and a swing mechanism for cleaning the filter screens (6) is arranged inside the primary filter box (1), and the primary filter box (1) is connected to an aircraft exhaust pipe via a connecting pipe (5); A treatment box (2), wherein the three-way catalytic converter (3) is arranged inside the treatment box (2), and the treatment box (2) is fixedly connected to the bottom of the primary filter box (1) through a connecting frame (26), and the primary filter box (1) is connected to the treatment box (2) through a pipeline (11), a motor (7) is fixed on the top of the treatment box (2), and the output shaft of the motor (7) is transmission-connected to a shaft rod (9), and the shaft rod (9) is transmission-connected to a swing mechanism, and a secondary filtering mechanism and a regulating mechanism are arranged on the treatment box (2), and the regulating mechanism is transmission-connected to the shaft rod (9) and the secondary filtering mechanism respectively.

2. The exhaust gas treatment device for oil-powered aircraft according to claim 1, characterized in that: A plurality of partitions (4) are fixed side by side at equal intervals in the middle of the inner wall of the primary filter box (1), and a filter screen cover (6) is fixed between two adjacent partitions (4), and the cross section of the filter screen cover (6) is in the shape of an arc. The connecting pipe (5) is located below the partition (4), and the connection point between the pipeline (11) and the primary filter box (1) is located on the upper side of the filter screen cover (6). The bottom of the primary filter box (1) is an inclined structure, and the bottom of the primary filter box (1) is connected to a collecting cylinder (25).

3. The exhaust gas treatment device for an oil-powered aircraft according to claim 2, characterized in that: The swing mechanism comprises a frame (12), and sliding rods (15) are fixed on both sides of the frame (12), and the two sliding rods (15) are slidably connected to two suspension rods (14), and the two suspension rods (14) are fixed to the bottom of two partitions (4). A disk (13) is arranged inside the frame (12), and the shaft rod (9) passes through and is fixedly connected to a position on the disk (13) away from the center of the circle, and the upper end of the shaft rod (9) passes through and is rotatably connected to the partition (4) located in the middle position, and the upper end of the shaft rod (9) is fixedly connected to the impeller (10), and the lower end of the shaft rod (9) passes through and is rotatably connected to the shaft sleeve (8), and the lower end of the shaft rod (9) is transmission-connected to the motor (7), and the shaft sleeve (8) passes through and is fixedly connected to the bottom plate of the primary filter box (1).

4. The exhaust gas treatment device for oil-powered aircraft according to claim 3, characterized in that: The bottoms of two adjacent partitions (4) are fixedly connected to a bracket (32), and an axle pin (33) is fixed on the bracket (32), and the axle pin (33) is fixedly connected to the middle part of the swing rod (34) for rotation, and a strip-shaped through hole (36) is opened at the lower part of the swing rod (34), and the upper end of the swing rod (34) is fixedly connected to a brush strip (35), and the brush strip (35) is located at the inner arc surface of the corresponding filter screen cover (6), and a pin rod (37) corresponding to the strip-shaped through hole (36) is fixed on the slide rod (15), and the pin rod (37) is inserted and slidably connected in the corresponding strip-shaped through hole (36).

5. The exhaust gas treatment device for oil-powered aircraft according to claim 3, characterized in that: The secondary filtering mechanism comprises a winding box (22) and an unwinding box (27) fixed on both sides of the outside of the processing box (2), and a passage corresponding to and communicating with the winding box (22) and the unwinding box (27) is opened on the side wall of the processing box (2), a winding drum (23) is rotatably connected to a fixed axis in the winding box (22), and an unwinding drum (28) is rotatably connected to a fixed axis in the unwinding box (27), and filter cotton (24) is wound around the unwinding drum (28).

6. The exhaust gas treatment device for oil-powered aircraft according to claim 5, characterized in that: Two parallel mesh plates (31) are fixed on the inner wall of the treatment box (2) in upper and lower positions, and the three-way catalytic converter (3) is located below the mesh plates (31). One end of the filter cotton (24) on the unwinding drum (28) passes through the channel and between the two mesh plates (31) and is wound on the winding drum (23).

7. The exhaust gas treatment device for oil-powered aircraft according to claim 5, characterized in that: The winding box (22) and the unwinding box (27) are both made of a transparent material, and a detachable cover is provided on the winding box (22) and the unwinding box (27).

8. The exhaust gas treatment device for oil-powered aircraft according to claim 6, characterized in that: The regulating mechanism comprises a slide cylinder (38) fixed on the top of the treatment box (2), and a plunger (39) is slidably connected inside the slide cylinder (38), and one end of the plunger (39) is connected to a corresponding end of the slide cylinder (38) through a spring (40), a slide groove (41) is provided on the side wall of the slide cylinder (38), and the plunger (39) blocks the slide groove (41), a lever (42) is slidably connected inside the slide groove (41), and the lever (42) is fixedly connected to the plunger (39), and the two ends of the slide cylinder (38) are connected to the primary filter box (1) and the treatment box (2) through an air pipe 1 (29) and an air pipe 2 (30), respectively, the position where the air pipe 1 (29) is connected to the primary filter box (1) is located above the impeller (10), and the position where the air pipe 2 (30) is connected to the treatment box (2) is located between the pressure screen plate (31) and the three-way catalytic converter (3).

9. The exhaust gas treatment device for oil-powered aircraft according to claim 8, characterized in that: A second suspension rod (17) and a third suspension rod (43) are fixed at the bottom of the primary filter box (1), and the second suspension rod (17) is rotatably connected to a second shaft rod (18), the second shaft rod (18) is arranged parallel to the axis direction of the slide cylinder (38), one end of the second shaft rod (18) is located in the rotating cylinder (45), and the rotating cylinder (45) and the second shaft rod (18) are arranged coaxially, the rotating cylinder (45) is coaxially fixed to one end of the fourth shaft rod (44), and the shaft rod The other end of shaft four (44) is connected to shaft one (9) through bevel gear set one (16), and shaft four (44) is connected to suspension rod three (43) in a fixed-axis rotation manner. Shaft three (20) passes through the side wall of the winding box (22) and is connected to shaft three (20) in a fixed-axis rotation manner. One end of shaft three (20) is connected to the winding drum (23) through bevel gear set three (21), and the other end is connected to shaft two (18) through bevel gear set two (19).

10. The exhaust gas treatment device for oil-powered aircraft according to claim 9, characterized in that: One end of the second shaft rod (18) located in the rotating cylinder (45) is vertically fixedly connected to the slide frame (46), and the slide frame (46) is slidably connected to the slider (47), and the slider (47) is fixedly connected to the tooth block (48). The inner wall of the rotating cylinder (45) is provided with a tooth groove, and the teeth on the tooth block (48) are engaged with the tooth groove. A sliding sleeve (50) is sleeved on the second shaft rod (18) and slidably connected. The tooth block (48) is hinged to the sliding sleeve (50) through a connecting rod (49), and the sliding sleeve (50) is fixedly rotatably connected to the end of the lever (42) away from the plunger (39).

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