Self-cleaning air supply passage

Abstract

The application discloses a self-cleaning air supply channel and relates to the technical field of air conditioning. The self-cleaning air supply channel comprises a first channel, a filter cleaning mechanism arranged in the first channel, a second channel installed at one end of the first channel, and a wind direction control mechanism arranged on the second channel and used for controlling the wind direction. The filter cleaning mechanism comprises a filter screen plate installed in the first channel, an inclined plate arranged in an inclined mode and extending downward at an end away from the filter screen plate, and a moving frame provided with a plurality of connecting rods. The filter screen plate is used for filtering air. When cleaning is needed, the first electric telescopic cylinder is operated to drive the cleaning plates to move, and the cleaning brushes are used for cleaning, so that the air supply effect is ensured. Since the inclined plate is arranged in an inclined mode, the swept impurities can be better guided and fall down, and the reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to a self-cleaning air supply duct. Background Technology

[0002] Air conditioning systems are used to cool and purify indoor air to maintain indoor comfort and air quality. Traditional air conditioning systems typically consist of three basic components: filtration, cooling, and air supply. Regarding filtration, traditional filters require regular manual cleaning or replacement, which not only increases maintenance costs but can also lead to decreased filtration efficiency due to user negligence, thus affecting air quality.

[0003] A search revealed Chinese patent application number 202222863654.X, which discloses an air supply duct for an electronics factory with purification function. The duct includes a treatment box, a return air connection pipe, and a return air duct. The treatment box houses a fresh air treatment mechanism, and the return air duct houses an air-regulating and noise-reducing mechanism. The fresh air treatment mechanism includes an air inlet chamber, a filter, a cooler, ventilation holes, an electric heating rod, an electrode humidifier, a mist outlet, an electrode rod, an electrostatic precipitator, and a dust hopper. The air-regulating and noise-reducing mechanism includes a fire damper, a silencer, a flexible connecting pipe, and an airflow regulating valve. The air supply duct in the aforementioned document has the following shortcomings: although it has a filtration function, it cannot perform self-cleaning and requires further improvement. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-cleaning air supply channel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A self-cleaning air supply duct includes:

[0007] The first channel is equipped with a filtration and cleaning mechanism.

[0008] The second channel is installed at one end of the first channel, and the second channel is equipped with a wind direction control mechanism for controlling the wind direction.

[0009] The filtration and cleaning mechanism includes:

[0010] Filter screen plate, the filter screen plate is installed in the first channel;

[0011] Inclined plate, the inclined plate is set at an angle, and the end of the inclined plate away from the filter plate extends downward;

[0012] The mobile frame is equipped with multiple connecting rods, and multiple cleaning plates are installed on the connecting rods. The shape of the cleaning plates is adapted to the inclined plate and the filter plate. The cleaning plates are equipped with evenly distributed cleaning brushes on the side of the cleaning plates close to the filter plate and the inclined plate.

[0013] The first electric telescopic cylinder is installed on the first channel, and the output end of the first electric telescopic cylinder is fixed on the movable frame.

[0014] As a preferred embodiment of the present invention: a mounting base is provided at the bottom of the first channel, the top of the mounting base is connected to the first channel, a conveying roller is rotatably mounted inside the mounting base, a conveying cavity is formed on the outer circumferential wall of the conveying roller, a partition is provided in the middle of the conveying cavity, and the partition is adapted to the filter screen plate; a guide plate is fixed on the inner wall at the bottom of the first channel, two guide plates are symmetrically arranged about the filter screen plate, and the height of the guide plates gradually increases in the direction away from the filter screen plate;

[0015] A control unit is installed on one side of the first channel to control the rotation of the conveyor roller.

[0016] As a preferred embodiment of the present invention: the control unit includes a control motor, which is mounted on the first channel via a bracket; the output end of the control motor is connected to a first gear, and a second gear is fixed on the shaft of the conveying roller, the second gear meshing with the first gear.

[0017] As a preferred embodiment of the present invention: a mounting frame is fixed at the bottom of the first channel, a collection box is provided below the conveying roller, the top of the collection box is provided with an arc-shaped opening adapted to the conveying roller, and fixing buckles are fixed on both sides of the collection box. The collection box is detachably installed in the mounting frame through the fixing buckles.

[0018] As a preferred embodiment of the present invention: a liquid bladder is fixed to the inner wall of the top of the first channel, a plurality of protrusions are provided at the bottom of the liquid bladder, a nozzle is provided at the bottom of the liquid bladder, and a micro-slit is provided at the end of the nozzle. When no external force is applied, the nozzle is in a sealed state, and one end of the liquid bladder is connected to a cleaning liquid supply device through a pipeline.

[0019] The cleaning plate at the top is detachably mounted with a bracket, and a squeezing wheel is mounted on the top of the bracket, with protrusions located on the movement path of the squeezing wheel.

[0020] As a preferred embodiment of the present invention: a first groove is provided on the side of the top of the inclined plate near the filter plate, and a second groove is provided on the top of the inclined plate, the second groove being in communication with the first groove.

[0021] As a preferred embodiment of the present invention, the wind direction control mechanism includes:

[0022] Adjusting plates are rotatably mounted in the second channel via a shaft, and multiple adjusting plates are equidistantly arranged.

[0023] The drive unit is mounted on the second channel and is used to synchronously drive the deflection of the adjustment plate.

[0024] As a preferred embodiment of the present invention, the driving unit includes:

[0025] The drive motor is mounted on the second channel via a motor mount.

[0026] The drive gear has its shaft connected to the output end of the drive motor.

[0027] The guide frame is fixed on the second channel. A rack is slidably connected to the outer wall of the guide frame. The rack has evenly distributed protruding teeth on both sides. The protruding teeth on one side of the rack mesh with the drive gear.

[0028] Driven gears are mounted on the shaft of the adjusting plate, and each driven gear meshes with the convex teeth on the other side of the rack.

[0029] As a preferred embodiment of the present invention: a third channel is provided on one side of the first channel, the first channel and the third channel are connected by an annular elastic connecting part, a second electric telescopic cylinder is fixed to the top of the first channel, a mounting plate is fixed to the top of the third channel, and the output end of the second electric telescopic cylinder is fixed to the mounting plate.

[0030] The first channel is fixed with equidistant first uprights; the third channel is fixed with equidistant second uprights. The first and second uprights are staggered. The ends of the first and second uprights are trapezoidal, and the inclined surfaces on both sides of the ends of the first and second uprights are parallel.

[0031] As a preferred embodiment of the present invention, liquid pipes are installed on the inner sides of the first and second vertical plates, and the liquid pipes are connected to the coolant circulation system.

[0032] As a preferred embodiment of the present invention: a sleeve is installed on the connecting rod, a collecting hopper is installed on one side of the sleeve, the collecting hopper is located diagonally below the inclined plate, a plurality of conveying slides are provided on one side of the outer wall of the collecting hopper, the top of the conveying slides is connected to the inside of the collecting hopper, and the bottom of the conveying slides extends to the top of the first groove of the lower inclined plate.

[0033] The beneficial effects of this invention are as follows:

[0034] 1. This invention, by setting up a filtration and cleaning mechanism, can filter the air using filter plates. When cleaning is required, the first electric telescopic cylinder operates, driving each cleaning plate to move and using cleaning brushes to clean, thus ensuring the air delivery effect. Since the inclined plates are set at an angle, they can better guide the swept-down impurities, making it easier for them to fall, thus improving reliability.

[0035] 2. By setting up structures such as conveying rollers, the present invention can guide dust and impurities into the conveying cavity of the conveying rollers when they fall, using guide plates. Based on the control of the control unit, the conveying rollers are driven to rotate, rotating the conveying cavity to the bottom of the first channel, thereby discharging the impurities. Since a partition is set, the partition can block the space under the filter screen during non-rotation periods, so as to ensure the filtration effect.

[0036] 3. By setting up a collection box and other structures, the present invention can rotate the conveying cavity to below the first channel after the conveying roller rotates, thereby discharging impurities into the collection box and completing the collection.

[0037] 4. By setting up structures such as liquid bladders and extrusion wheels, the present invention can drive the extrusion wheels to move based on the movement of the cleaning plate, thereby squeezing the protrusions, increasing the pressure inside the liquid bladder, and spraying out cleaning liquid through the nozzle, thereby cleaning the inclined plate and other structures and ensuring the cleanliness of the structure.

[0038] 5. By setting up a wind direction control mechanism, the present invention can drive the drive motor to rotate the drive gear, which in turn drives the rack to move, and synchronously drives each driven gear to rotate, so as to achieve the purpose of synchronously adjusting the angle of each adjustment plate.

[0039] 6. By setting up structures such as a first upright plate and a second upright plate, the present invention can adjust the distance between the first channel and the third channel based on the operation of the second electric telescopic cylinder, thereby adjusting the relative position of the ends of the first upright plate and the second upright plate, so as to change the distance between the ends of the first upright plate and the second upright plate, thereby achieving the purpose of adjusting the air supply effect.

[0040] 7. By setting up structures such as liquid pipes, the present invention can operate through a coolant circulation system to adjust the temperature at the ends of the first and second vertical plates, thereby cooling the airflow and achieving the purpose of air cooling.

[0041] 8. By setting up structures such as a collection bucket and a conveying chute, this invention can collect water after the upper inclined plate is washed, and discharge it into the lower inclined plate through the conveying chute. Since the connecting rod keeps reciprocating during the process, the water discharged from the conveying chute can be evenly sprinkled on the lower inclined plate, so as to ensure the cleaning effect of the lower inclined plate and improve reliability. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a self-cleaning air supply channel proposed in this invention;

[0043] Figure 2 This is a schematic diagram of the structure of a self-cleaning air supply duct air direction control mechanism proposed in this invention;

[0044] Figure 3This is a schematic cross-sectional view of the first channel of a self-cleaning air supply channel proposed in this invention.

[0045] Figure 4 This is a schematic diagram of the structure of the collection box of the self-cleaning air supply channel proposed in this invention, which is removed from the first channel;

[0046] Figure 5 This is a schematic diagram of the filter plate and inclined plate of a self-cleaning air supply channel proposed in this invention;

[0047] Figure 6 This is a schematic diagram of the liquid bladder and protrusion structure of a self-cleaning air supply channel proposed in this invention.

[0048] Figure 7 This is a schematic diagram of the collection hopper and conveying slide of a self-cleaning air supply channel proposed in this invention.

[0049] In the diagram: 1 First channel, 2 Second electric telescopic cylinder, 3 First electric telescopic cylinder, 4 Third channel, 5 Annular elastic connecting part, 6 Moving frame, 7 Second channel, 8 Adjusting plate, 9 Driven gear, 10 Drive motor, 11 Drive gear, 12 Guide frame, 13 Rack, 14 Mounting plate, 15 Second vertical plate, 16 Liquid pipe, 17 First vertical plate, 18 Filter screen plate, 19 Inclined plate, 20 Guide plate, 21 Mounting frame, 22 Fixing buckle, 23 Collection box, 24 Second gear, 25 Control motor, 26 First gear, 27 Partition, 28 Conveying roller, 29 Mounting seat, 30 Connecting rod, 31 First groove, 32 Liquid bladder, 33 Second groove, 34 Nozzle, 35 Extrusion wheel, 36 Protrusion, 37 Fixing frame, 38 Cleaning brush, 39 Cleaning plate, 40 Conveying slide, 41 Sleeve, 42 Collection hopper. Detailed Implementation

[0050] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0051] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0052] Example 1:

[0053] A self-cleaning air supply duct, such as Figure 1-6 As shown, it includes:

[0054] First channel 1, a filter cleaning mechanism is provided in the first channel 1;

[0055] The second channel 7 is installed at one end of the first channel 1, and the second channel 7 is equipped with a wind direction control mechanism for controlling the wind direction.

[0056] The filtration and cleaning mechanism includes:

[0057] Filter plate 18 is installed in the first channel 1;

[0058] Inclined plate 19 is inclined, and the end of inclined plate 19 away from filter plate 18 extends downward;

[0059] The movable frame 6 is equipped with multiple connecting rods 30, and multiple cleaning plates 39 are installed on the connecting rods 30. The shape of the cleaning plates 39 is adapted to the inclined plate 19 and the filter plate 18. The cleaning plates 39 are provided with evenly distributed cleaning brushes 38 on the side of the cleaning plate 39 near the filter plate 18 and the inclined plate 19.

[0060] The first electric telescopic cylinder 3 is installed on the first channel 1, and the output end of the first electric telescopic cylinder 3 is fixed on the movable frame 6.

[0061] By setting up a filtration and cleaning mechanism, the air can be filtered using the filter plate 18. When cleaning is required, the first electric telescopic cylinder 3 operates, driving each cleaning plate 39 to move and using the cleaning brush 38 to clean, thus ensuring the air delivery effect. Since the inclined plate 19 is set at an angle, it can better guide the swept-down impurities, making it easier for them to fall and improving reliability.

[0062] To facilitate dust removal; such as Figure 4 , Figure 5 As shown, a mounting base 29 is provided at the bottom of the first channel 1, and the top of the mounting base 29 is connected to the first channel 1. A conveying roller 28 is rotatably mounted inside the mounting base 29. A conveying cavity is opened on the outer circumference of the conveying roller 28, and a partition 27 is provided in the middle of the conveying cavity. The partition 27 is adapted to the filter plate 18. A guide plate 20 is fixed on the inner wall of the bottom of the first channel 1. The two guide plates 20 are symmetrically arranged about the filter plate 18, and the height of the guide plates 20 gradually increases in the direction away from the filter plate 18.

[0063] A control unit is installed on one side of the first channel 1 to control the rotation of the conveyor roller 28.

[0064] To facilitate dust removal; such as Figure 4 As shown, the control unit includes a control motor 25, which is mounted on the first channel 1 via a bracket; the output end of the control motor 25 is connected to a first gear 26, and a second gear 24 is fixed on the shaft of the conveying roller 28, which meshes with the first gear 26.

[0065] By setting up structures such as the conveying roller 28, when dust and impurities fall, they can be guided by the guide plate 20 and introduced into the conveying chamber of the conveying roller 28. Based on the control of the control unit, the conveying roller 28 is driven to rotate, and the conveying chamber is rotated to the bottom of the first channel 1, thereby discharging the impurities. Since the partition plate 27 is set, during non-rotation, the partition plate 27 can block the space below the filter screen plate 18 to ensure the filtration effect.

[0066] For ease of collection; such as Figure 4 , Figure 5 As shown, a mounting frame 21 is fixed at the bottom of the first channel 1, a collection box 23 is provided below the conveying roller 28, the top of the collection box 23 is provided with an arc-shaped opening that matches the conveying roller 28, and fixing buckles 22 are fixed on both sides of the collection box 23. The collection box 23 is detachably installed in the mounting frame 21 through the fixing buckles 22.

[0067] By setting up structures such as the collection box 23, the conveying chamber can be rotated to below the first channel 1 after the conveying roller 28 rotates, thereby discharging impurities into the collection box 23 and completing the collection.

[0068] To improve cleaning effectiveness; such as Figure 4-6 As shown, a liquid bladder 32 is fixed on the top inner wall of the first channel 1. Multiple protrusions 36 are provided at the bottom of the liquid bladder 32. A nozzle 34 is provided at the bottom of the liquid bladder 32. A micro-slit is provided at the end of the nozzle 34. The nozzle 34 is in a sealed state when not subjected to external force. One end of the liquid bladder 32 is connected to a cleaning liquid supply device through a pipeline.

[0069] A mounting bracket 37 is detachably installed on the cleaning plate 39 at the top. A squeezing wheel 35 is installed on the top of the mounting bracket 37, and a protrusion 36 is located on the moving path of the squeezing wheel 35.

[0070] By setting up structures such as liquid bladder 32 and extrusion wheel 35, the movement of cleaning plate 39 can drive the extrusion wheel 35 to move, thereby extruding protrusion 36, increasing the pressure inside liquid bladder 32, and spraying cleaning liquid through nozzle 34, thereby cleaning structures such as inclined plate 19 and ensuring the cleanliness of the structure.

[0071] For ease of cleaning; such as Figure 6 As shown, a first groove 31 is provided on the top of the inclined plate 19 near the filter plate 18, and a second groove 33 is provided on the top of the inclined plate 19. The second groove 33 is connected to the first groove 31.

[0072] To facilitate wind direction control; such as Figure 1 , Figure 2 As shown, the wind direction control mechanism includes:

[0073] Adjusting plate 8 is rotatably installed in the second channel 7 via a shaft, and multiple adjusting plates 8 are equidistantly arranged;

[0074] The drive unit is mounted on the second channel 7 and is used to synchronously drive the deflection of the adjustment plate 8.

[0075] To facilitate wind direction control; such as Figure 1 , Figure 2 As shown, the drive unit includes:

[0076] Drive motor 10 is mounted on the second channel 7 via a motor mount;

[0077] Drive gear 11, the shaft of drive gear 11 is connected to the output end of drive motor 10 for transmission;

[0078] Guide frame 12 is fixed on the second channel 7. A rack 13 is slidably connected to the outer wall of the guide frame 12. The rack 13 has evenly distributed protruding teeth on both sides. The protruding teeth on one side of the rack 13 mesh with the drive gear 11.

[0079] Driven gear 9 is mounted on the shaft of adjusting plate 8, and each driven gear 9 meshes with the convex teeth on the other side of rack 13;

[0080] By setting up a wind direction control mechanism, the drive motor 10 can work to drive the drive gear 11 to rotate, which in turn drives the rack 13 to move, and synchronously drives each driven gear 9 to rotate, so as to achieve the purpose of synchronously adjusting the angle of each adjustment plate 8.

[0081] Example 2:

[0082] A self-cleaning air supply duct, such as Figure 1-6 As shown, in order to facilitate the adjustment of the air supply effect, this embodiment makes the following improvements based on embodiment 1: a third channel 4 is provided on one side of the first channel 1, the first channel 1 and the third channel 4 are connected by an annular elastic connecting part 5, a second electric telescopic cylinder 2 is fixed on the top of the first channel 1, a mounting plate 14 is fixed on the top of the third channel 4, and the output end of the second electric telescopic cylinder 2 is fixed on the mounting plate 14.

[0083] First vertical plates 17 are fixed on the first channel 1 at equal intervals; second vertical plates 15 are fixed on the third channel 4 at equal intervals. The first vertical plates 17 and the second vertical plates 15 are arranged in an alternating manner. The ends of the first vertical plates 17 and the second vertical plates 15 are trapezoidal structures, and the inclined surfaces on both sides of the ends of the first vertical plates 17 and the second vertical plates 15 are parallel.

[0084] By setting up structures such as the first upright plate 17 and the second upright plate 15, the distance between the first channel 1 and the third channel 4 can be adjusted based on the operation of the second electric telescopic cylinder 2, thereby adjusting the relative position of the ends of the first upright plate 17 and the second upright plate 15, so as to change the distance between the ends of the first upright plate 17 and the second upright plate 15, in order to achieve the purpose of adjusting the air supply effect.

[0085] To facilitate adjustment of the air supply effect; such as Figure 3 As shown, liquid pipes 16 are installed on the inner sides of the first vertical plate 17 and the second vertical plate 15. The liquid pipes 16 are connected to the coolant circulation system. The coolant circulation system can adopt existing technology, which will not be described in detail here.

[0086] By setting up structures such as liquid pipe 16, the temperature at the ends of the first vertical plate 17 and the second vertical plate 15 can be adjusted through the operation of the coolant circulation system, thereby cooling the airflow and achieving the purpose of air cooling.

[0087] Example 3:

[0088] A self-cleaning air supply duct, such as Figure 7 As shown, in order to facilitate the adjustment of the air supply effect, this embodiment makes the following improvements based on embodiment 1:

[0089] A sleeve 41 is installed on the connecting rod 30. A collection hopper 42 is installed on one side of the sleeve 41. The collection hopper 42 is located below the inclined plate 19. A plurality of conveying slides 40 are provided on one side of the outer wall of the collection hopper 42. The top of the conveying slides 40 is connected to the inside of the collection hopper 42. The bottom of the conveying slides 40 extends to the top of the first groove 31 of the lower inclined plate 19.

[0090] By setting up structures such as the collection bucket 42 and the conveying slide 40, the water can be collected by the collection bucket 42 after the upper inclined plate 19 is washed, and discharged into the lower inclined plate 19 through the conveying slide 40. Since the connecting rod 30 keeps reciprocating during the process, the water discharged from the conveying slide 40 can be evenly sprinkled on the lower inclined plate 19 to ensure the cleaning effect of the lower inclined plate 19 and improve reliability.

[0091] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A self-cleaning air supply duct, characterized in that, include: The first channel (1) is equipped with a filtration and cleaning mechanism. The second channel (7) is installed at one end of the first channel (1), and the second channel (7) is equipped with a wind direction control mechanism for controlling the wind direction; The filtration and cleaning mechanism includes: Filter plate (18) is installed in the first channel (1); Inclined plate (19), the inclined plate (19) is set at an angle, and the end of the inclined plate (19) away from the filter plate (18) extends downward; A movable frame (6) is equipped with multiple connecting rods (30), and multiple cleaning plates (39) are installed on the connecting rods (30). The shape of the cleaning plate (39) is adapted to the inclined plate (19) and the filter plate (18). The cleaning plate (39) is provided with evenly distributed cleaning brushes (38) on the side of the cleaning plate (39) close to the filter plate (18) and the inclined plate (19). The first electric telescopic cylinder (3) is installed on the first channel (1), and the output end of the first electric telescopic cylinder (3) is fixed on the movable frame (6); The first channel (1) is provided with a mounting base (29) at the bottom. The top of the mounting base (29) is connected to the first channel (1). A conveying roller (28) is rotatably installed inside the mounting base (29). A conveying cavity is opened on the outer circumference of the conveying roller (28). A partition (27) is provided in the middle of the conveying cavity. The partition (27) is adapted to the filter screen plate (18). A guide plate (20) is fixed on the inner wall of the bottom of the first channel (1). The two guide plates (20) are symmetrically arranged about the filter screen plate (18). The height of the guide plates (20) gradually increases in the direction away from the filter screen plate (18). A control unit is installed on one side of the first channel (1) for controlling the rotation of the conveyor roller (28); The first channel (1) has a liquid bladder (32) fixed on the top inner wall. The bottom of the liquid bladder (32) is provided with multiple protrusions (36). The bottom of the liquid bladder (32) is provided with a nozzle (34). The end of the nozzle (34) is provided with a micro-slit. When no external force is applied, the nozzle (34) is in a sealed state. One end of the liquid bladder (32) is connected to the cleaning liquid supply device through a pipeline. A mounting bracket (37) is detachably mounted on the top cleaning plate (39). A pressing wheel (35) is mounted on the top of the mounting bracket (37), and a protrusion (36) is located on the moving path of the pressing wheel (35).

2. The self-cleaning air supply duct according to claim 1, characterized in that, The control unit includes a control motor (25), which is mounted on the first channel (1) via a bracket; the output end of the control motor (25) is connected to a first gear (26), and a second gear (24) is fixed on the shaft of the conveying roller (28), which meshes with the first gear (26).

3. The self-cleaning air supply duct according to claim 2, characterized in that, The first channel (1) is fixed with a mounting frame (21) at the bottom. A collection box (23) is provided below the conveying roller (28). The top of the collection box (23) is provided with an arc-shaped opening that matches the conveying roller (28). Fixing buckles (22) are fixed on both sides of the collection box (23). The collection box (23) is detachably installed in the mounting frame (21) through the fixing buckles (22).

4. The self-cleaning air supply duct according to claim 3, characterized in that, The inclined plate (19) has a first groove (31) on the side of the top of the plate (18) near the filter plate (18), and a second groove (33) is provided on the top of the inclined plate (19). The second groove (33) is connected to the first groove (31).

5. A self-cleaning air supply duct according to claim 4, characterized in that, The wind direction control mechanism includes: Adjustment plate (8), the adjustment plate (8) is rotatably installed in the second channel (7) via a shaft, and multiple adjustment plates (8) are equidistantly arranged; The drive unit is mounted on the second channel (7) and is used to synchronously drive the deflection of the adjustment plate (8).

6. A self-cleaning air supply duct according to claim 5, characterized in that, The drive unit includes: Drive motor (10), drive motor (10) is mounted on the second channel (7) via motor mount; Drive gear (11), the shaft of drive gear (11) is connected to the output end of drive motor (10) for transmission; Guide frame (12) is fixed on the second channel (7). A rack (13) is slidably connected to the outer wall of the guide frame (12). The rack (13) has evenly distributed protruding teeth on both sides. The protruding teeth on one side of the rack (13) mesh with the drive gear (11). Driven gears (9) are mounted on the shaft of the adjusting plate (8), and each driven gear (9) meshes with the convex tooth on the other side of the rack (13).

7. A self-cleaning air supply duct according to claim 1, characterized in that, A third channel (4) is provided on one side of the first channel (1). The first channel (1) and the third channel (4) are connected by an annular elastic connecting part (5). A second electric telescopic cylinder (2) is fixed on the top of the first channel (1), and a mounting plate (14) is fixed on the top of the third channel (4). The output end of the second electric telescopic cylinder (2) is fixed on the mounting plate (14). The first channel (1) is fixed with equidistant first upright plates (17); the third channel (4) is fixed with equidistant second upright plates (15). The first upright plates (17) and the second upright plates (15) are arranged in an alternating manner. The ends of the first upright plates (17) and the second upright plates (15) are trapezoidal structures, and the inclined surfaces on both sides of the ends of the first upright plates (17) and the second upright plates (15) are parallel. Liquid pipes (16) are installed on the inner sides of the first vertical plate (17) and the second vertical plate (15), and the liquid pipes (16) are connected to the coolant circulation system.

8. A self-cleaning air supply duct according to claim 7, characterized in that, A sleeve (41) is installed on the connecting rod (30), and a collection hopper (42) is installed on one side of the sleeve (41). The collection hopper (42) is located below the inclined plate (19). A plurality of conveying slides (40) are provided on one side of the outer wall of the collection hopper (42). The top of the conveying slide (40) is connected to the inside of the collection hopper (42), and the bottom of the conveying slide (40) extends to the top of the first groove (31) of the lower inclined plate (19).

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