Industrial fresh air ventilation equipment with multiple filtering mechanisms

Abstract

The invention discloses industrial fresh air ventilation equipment with multiple filtering mechanisms, and belongs to the technical field of fresh air ventilation, the industrial fresh air ventilation equipment comprises a mounting cover, a fixed cover is fixedly mounted on the upper surface of the mounting cover, and a knocking assembly and a sweeping assembly are arranged on the inner wall of the mounting cover; according to the device, by arranging a knocking assembly and a sweeping assembly, a knocking rod can move back and forth in a positioning plate under the action of a telescopic spring and a fixing ring, a fixing plate vibrates back and forth in a stroke groove through a sliding block, and a connecting plate can drive a mounting plate to move synchronously; a first sweeping plate and a second sweeping plate sweep dust on the filter plate, the dust on the filter plate is vibrated to be loose through vibration, meanwhile, the dust in filter holes of the filter plate can be vibrated out, the dust is swept while knocking is conducted, automatic cleaning of the filter mechanism is achieved, and the filter mechanism is prevented from being blocked; the air volume of the fresh air ventilator is reduced, and the working quality and the working efficiency of the fresh air ventilator are further guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of fresh air ventilation, and in particular relates to an industrial fresh air ventilation device with multiple filtering mechanisms. Background Art

[0002] The fresh air ventilator is designed and developed based on the principle that by supplying air on one side of a closed room and inducing air on the other side, a "fresh air flow field" will be formed in the room. It relies on mechanical air supply and induction to force the formation of a fresh air flow field in the system. It is a new type of environmentally friendly appliance that keeps indoor air clean and fresh at all times. This independent indoor air replacement and purification circulation system can input natural fresh air while removing indoor polluted air. The fresh air input into the room is first filtered, sterilized, heated, oxygenated and other processes.

[0003] A Chinese patent discloses a fresh air ventilator (CN109827281A), which belongs to the technical field of fresh air ventilation equipment. The fresh air ventilator includes a casing, a top plate, a heat exchange core, a blower and an exhaust fan; the top plate cover is arranged at the top opening of the casing, and isolated fresh air ducts and dirty air ducts are arranged in the casing; a plurality of mounting ridges for mounting the heat exchange core are arranged in the casing, and the plurality of mounting ridges form a space for clamping and mounting the heat exchange core, and the mounting ridges are provided with a Y-shaped mounting groove, and a Y-shaped sealing gasket for sealing the heat exchange core is arranged in the Y-shaped mounting groove; the heat exchange core is provided with a first air duct and a second air duct isolated from each other, the first air duct is connected to the fresh air duct, and the second air duct is connected to the dirty air duct. The fresh air ventilator provided by the present invention facilitates the installation of the heat exchange core in the casing of the fresh air ventilator, and improves the sealing effect between the heat exchange core and the casing. At present, the fresh air ventilator will filter the dust and other impurities in the air during use. Therefore, as the use time increases, a certain amount of dust will adhere to the internal filter. If it is not cleaned for a long time, it is easy to cause the filter to get clogged, thereby reducing the air intake and air outlet of the fresh air ventilator, and further reducing the working efficiency of the fresh air ventilator. For this purpose, an industrial fresh air ventilation equipment with multiple filtering mechanisms is provided. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that dust cleaning of current fresh air ventilators is inconvenient, and to propose an industrial fresh air ventilation device with multiple filtering mechanisms.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an industrial fresh air ventilation device with multiple filtering mechanisms, comprising a mounting cover, a fixed cover is fixedly mounted on the upper surface of the mounting cover, a suction cover is fixedly mounted on the inner wall of the mounting cover, an air inlet and an air outlet are respectively connected and mounted on the two side walls of the mounting cover, a knocking component and a cleaning component are arranged on the inner wall of the mounting cover, multiple filtering components are arranged on the inner wall of the bottom surface of the mounting cover, and a regulating component is arranged on the inner side wall of the suction cover; The knocking assembly includes a vibration motor, the outer surface of which is fixedly connected to the inner wall of the fixed cover, a reciprocating screw is fixedly installed on the output end of the vibration motor, one end of the reciprocating screw extends to the interior of the mounting cover, and a rotating disk is fixedly installed on the outer surface of the reciprocating screw.

[0006] As a further description of the above technical solution: A top block is fixedly mounted on the outer surface of the rotating disk, a positioning plate is fixedly mounted on the inner wall of the top surface of the mounting cover, a telescopic spring is fixedly mounted on the side wall of the positioning plate, and a fixing ring is fixedly mounted on one end of the telescopic spring.

[0007] As a further description of the above technical solution: A knocking rod is fixedly mounted on the inner wall of the fixing ring, one end of the knocking rod passes through the interior of the telescopic spring and extends to the outside of the other side wall of the positioning plate, and the other end of the knocking rod is in contact with the outer surface of the rotating disk.

[0008] As a further description of the above technical solution: The cleaning assembly comprises a threaded sleeve, the inner wall of which is rotatably connected to the outer surface of the reciprocating screw, a connecting plate is fixedly mounted on the side wall of the threaded sleeve, and a sliding groove is arranged on the side wall of the connecting plate.

[0009] As a further description of the above technical solution: A connecting block is slidably installed on the inner wall of the slide groove, one end of the connecting block extends to the outside of the slide groove, one end of the connecting block is fixedly installed with a slide plate, and a first cleaning plate and a second cleaning plate are fixedly installed on the side wall of the slide plate, and the cleaning directions of the first cleaning plate and the second cleaning plate are opposite.

[0010] As a further description of the above technical solution: The multiple filter assembly includes a mounting plate, a travel groove is provided on the lower surface of the mounting plate, a slider is slidably mounted on the inner wall of the travel groove, connecting springs are fixedly mounted on both side walls of the slider, and one end of the connecting spring is fixedly connected to the inner wall of the travel groove.

[0011] As a further description of the above technical solution: A fixing plate is fixedly mounted on the lower surface of the sliding block, a filter plate is fixedly mounted on the lower surface of the fixing plate, the filter plate is located between the first cleaning plate and the second cleaning plate, and a slot is provided on the upper surface of the mounting cover.

[0012] As a further description of the above technical solution: The filter plate is placed in the mounting cover through a slot, the lower surface of the mounting plate is fixedly connected to the upper surface of the mounting cover through bolts, and one end of the knocking rod is fitted with the side wall of the fixing plate.

[0013] As a further description of the above technical solution: The regulating component includes a fixed cylinder, one end of the fixed cylinder is rotatably connected to the inner wall of the air suction hood, the other end of the fixed cylinder is fixedly installed with a rotating rod, a driving motor is fixedly installed on the other inner wall of the air suction hood, the output end of the driving motor is fixedly connected to one end of the rotating rod, a sprocket is fixedly installed on the outer surface of the rotating rod, and the sprockets are connected by a sprocket transmission.

[0014] As a further description of the above technical solution: A control motor is fixedly installed on the inner wall of the fixed cylinder, a driving rod is fixedly installed on the output end of the control motor, a driving bevel gear is fixedly installed on the outer surface of the driving rod, a positioning rod is rotatably installed on the inner wall of the shell cavity of the fixed cylinder, one end of the positioning rod extends to the interior of the fixed cylinder and is fixedly installed with a driven bevel gear, the driven bevel gear is meshed and connected with the driving bevel gear, and the other end of the positioning rod extends to the outside of the fixed cylinder and is fixedly installed with a fan blade.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The present invention relates to a filter element, wherein the filter element is a filter element having a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of filter elements, and the filter element is a plurality of

[0016] 2. In the present invention, by providing multiple filter components, the mounting plate will move back and forth in the slide groove through the connecting block when the filter plate moves, so that the first cleaning plate and the second cleaning plate are always in contact with the filter plate. Multiple filter plates are provided to clean dust and impurities in the air, thereby improving the air quality after ventilation by the fresh air ventilator, improving the ventilation effect of the fresh air ventilator, and thus ensuring the freshness of the indoor air.

[0017] 3. In the present invention, by providing a regulating component, the air volume can be adjusted according to actual conditions. At this time, the control motor drives the driving rod to rotate, and the driving rod drives the driving bevel gear to rotate synchronously. With the rotation of the driving bevel gear, the positioning rod will be driven to rotate on the inner wall of the shell cavity of the fixed cylinder under the action of the driven bevel gear. At this time, the positioning rod will drive the fan blades to rotate, and then adjust the angle of the fan blades. It can achieve the purpose of increasing the ventilation volume of the fresh air ventilator without increasing the power, and at the same time it can also achieve the function of saving energy consumption, which reflects the energy saving of the fresh air ventilator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an industrial fresh air ventilation device with multiple filtering mechanisms.

[0019] Figure 2 The figure is a schematic diagram of the internal structure of an industrial fresh air ventilation device with multiple filtering mechanisms.

[0020] Figure 3 It is an industrial fresh air ventilation device with multiple filtering mechanisms. Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 4 It is an industrial fresh air ventilation device with multiple filtering mechanisms. Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0022] Figure 5 The schematic diagram is a decomposed structure of a cleaning component in an industrial fresh air ventilation device with multiple filtering mechanisms.

[0023] Figure 6 The schematic diagram is a decomposed structure of a control component in an industrial fresh air ventilation device with multiple filtering mechanisms.

[0024] Legend: 1. Mounting cover; 2. Fixed cover; 3. Multiple filter assembly; 31. Mounting plate; 32. Travel groove; 33. Sliding block; 34. Connecting spring; 35. Fixed plate; 36. Filter plate; 4. Suction cover; 5. Driving motor; 6. Adjusting assembly; 61. Fixed cylinder; 62. Control motor; 63. Driving rod; 64. Driving bevel gear; 65. Positioning rod; 66. Driven bevel gear; 67. Fan blade; 7. Knocking assembly; 71. Vibrating motor; 72. Rotating disk; 73. Reciprocating screw; 74. Top block; 75. Positioning plate; 76. Telescopic spring; 77. Fixed ring; 78. Knocking rod; 8. Cleaning assembly; 81. Threaded sleeve; 82. Connecting plate; 83. Slide groove; 84. Connecting block; 85. Slide plate; 86. First cleaning plate; 87. Second cleaning plate; 9. Rotating rod; 10. Sprocket wheel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The present invention provides a technical solution: an industrial fresh air ventilation device with multiple filtering mechanisms, comprising a mounting cover 1, a fixed cover 2 is fixedly mounted on the upper surface of the mounting cover 1, a suction cover 4 is fixedly mounted on the inner wall of the mounting cover 1, an air inlet and an air outlet are connected and mounted on both side walls of the mounting cover 1, a knocking component 7 and a cleaning component 8 are arranged on the inner wall of the mounting cover 1, multiple filtering components 3 are arranged on the inner wall of the bottom surface of the mounting cover 1, and a regulating component 6 is arranged on the inner side wall of the suction cover 4; The knocking assembly 7 includes a vibration motor 71, the outer surface of which is fixedly connected to the inner wall of the fixed cover 2, a reciprocating screw 73 is fixedly installed on the output end of the vibration motor 71, one end of the reciprocating screw 73 extends to the inside of the mounting cover 1, a rotating disk 72 is fixedly installed on the outer surface of the reciprocating screw 73, a top block 74 is fixedly installed on the outer surface of the rotating disk 72, a positioning plate 75 is fixedly installed on the inner wall of the top surface of the mounting cover 1, a telescopic spring 76 is fixedly installed on the side wall of the positioning plate 75, one end of the telescopic spring 76 is fixedly installed with a fixing ring 77, a knocking rod 78 is fixedly installed on the inner wall of the fixing ring 77, one end of the knocking rod 78 passes through the interior of the telescopic spring 76 and extends to the outside of the other side wall of the positioning plate 75, and the other end of the knocking rod 78 fits with the outer surface of the rotating disk 72.

[0027] The specific implementation is as follows: the filtered impurities will adhere to the side wall of the filter plate 36, and the vibration motor 71 will drive the reciprocating screw 73 to rotate. At this time, the reciprocating screw 73 will drive the rotating disk 72 to rotate synchronously. When the rotating disk 72 rotates, it will drive the top block 74 to rotate synchronously, so that the knocking rod 78 will move back and forth in the positioning plate 75 under the action of the telescopic spring 76 and the fixing ring 77. As the knocking rod 78 moves, the fixing plate 35 vibrates back and forth in the travel groove 32 through the slider 33.

[0028] The cleaning assembly 8 includes a threaded sleeve 81, the inner wall of which is rotatably connected to the outer surface of the reciprocating screw 73, a connecting plate 82 is fixedly installed on the side wall of the threaded sleeve 81, a slide groove 83 is provided on the side wall of the connecting plate 82, a connecting block 84 is slidably installed on the inner wall of the slide groove 83, one end of the connecting block 84 extends to the outside of the slide groove 83, a slide plate 85 is fixedly installed on one end of the connecting block 84, a first cleaning plate 86 and a second cleaning plate 87 are fixedly installed on the side wall of the slide plate 85, the cleaning directions of the first cleaning plate 86 and the second cleaning plate 87 are opposite, the multiple filtering assembly 3 includes a mounting plate 31, the lower surface of which is provided with a row A travel groove 32, a slider 33 is slidably installed on the inner wall of the travel groove 32, and connecting springs 34 are fixedly installed on both side walls of the slider 33, one end of the connecting spring 34 is fixedly connected to the inner side wall of the travel groove 32, a fixing plate 35 is fixedly installed on the lower surface of the slider 33, and a filter plate 36 is fixedly installed on the lower surface of the fixing plate 35, and the filter plate 36 is located between the first cleaning plate 86 and the second cleaning plate 87. A slot is provided on the upper surface of the mounting cover 1, and the filter plate 36 is placed in the mounting cover 1 through the slot. The lower surface of the mounting plate 31 is fixedly connected to the upper surface of the mounting cover 1 by bolts, and one end of the knocking rod 78 is in contact with the side wall of the fixing plate 35.

[0029] The specific implementation is as follows: when the reciprocating screw 73 rotates, the threaded sleeve 81 will drive the connecting plate 82 to move up and down under the action of the thread, and at this time the connecting plate 82 will drive the slide plate 85 to move synchronously, and the first cleaning plate 86 and the second cleaning plate 87 will clean the dust on the filter plate 36, and the slide plate 85 will move back and forth in the slide groove 83 through the connecting block 84 when the filter plate 36 moves, so that the first cleaning plate 86 and the second cleaning plate 87 are always in contact with the filter plate 36.

[0030] The regulating component 6 includes a fixed cylinder 61, one end of which is rotatably connected to the inner wall of the air suction hood 4, and a rotating rod 9 is fixedly installed on the other end of the fixed cylinder 61. A driving motor 5 is fixedly installed on the other inner wall of the air suction hood 4, and the output end of the driving motor 5 is fixedly connected to one end of the rotating rod 9. A toothed sprocket 10 is fixedly installed on the outer surface of the rotating rod 9, and the toothed sprockets 10 are connected by toothed chain transmission. A control motor 62 is fixedly installed on the inner wall of the fixed cylinder 61, and a driving rod 63 is fixedly installed on the output end of the control motor 62. A driving bevel gear 64 is fixedly installed on the outer surface of the driving rod 63. A positioning rod 65 is rotatably installed on the inner wall of the shell cavity of the fixed cylinder 61, one end of the positioning rod 65 extends to the interior of the fixed cylinder 61 and is fixedly installed with a driven bevel gear 66, and the driven bevel gear 66 is meshed and connected with the driving bevel gear 64, and the other end of the positioning rod 65 extends to the outside of the fixed cylinder 61 and is fixedly installed with a fan blade 67.

[0031] Its specific implementation is as follows: the mounting cover 1 is connected to the wall through the mounting seat, the driving motor 5 drives the rotating rod 9 to rotate, and under the action of the sprocket wheel 10 and the sprocket chain, drives the other rotating rod 9 to rotate synchronously, thereby driving the two fixed cylinders 61 to rotate synchronously, and when the fixed cylinder 61 rotates, it will drive the fan blades 67 to rotate through the positioning rod 65, so as to perform ventilation treatment, and the air volume can be adjusted according to actual conditions. At this time, the control motor 62 drives the driving rod 63 to rotate, and the driving rod 63 will drive the driving bevel gear 64 to rotate synchronously. With the rotation of the driving bevel gear 64, under the action of the driven bevel gear 66, the positioning rod 65 will be driven to rotate on the inner wall of the shell cavity of the fixed cylinder 61, and at this time, the positioning rod 65 will drive the fan blades 67 to rotate, and then the angle of the fan blades 67 can be adjusted.

[0032] Working principle: the mounting cover 1 is connected to the wall through the mounting seat, and the driving motor 5 drives the rotating rod 9 to rotate, and under the action of the sprocket wheel 10 and the toothed chain, it drives the other rotating rod 9 to rotate synchronously, thereby driving the two fixed cylinders 61 to rotate synchronously. When the fixed cylinder 61 rotates, it will drive the fan blades 67 to rotate through the positioning rod 65, so as to perform ventilation processing, and the air volume can be adjusted according to actual conditions. At this time, the control motor 62 drives the driving rod 63 to rotate, and the driving rod 63 will drive the driving bevel gear 64 to rotate synchronously. With the rotation of the driving bevel gear 64, the positioning rod 65 will be driven to rotate on the inner wall of the shell cavity of the fixed cylinder 61 under the action of the driven bevel gear 66. At this time, the positioning rod 65 will drive the fan blades 67 to rotate, and then the angle of the fan blades 67 is adjusted. When the outside air passes through the mounting cover 1, the dust in the air will be filtered by the filter plate 36. Since multiple filter plates 36 are installed, the air volume can be adjusted according to actual conditions. The air is filtered multiple times, and the filtered impurities will adhere to the side wall of the filter plate 36. The vibration motor 71 drives the reciprocating screw 73 to rotate. At this time, the reciprocating screw 73 will drive the rotating disk 72 to rotate synchronously. When the rotating disk 72 rotates, it will drive the top block 74 to rotate synchronously, so that the knocking rod 78 will move back and forth in the positioning plate 75 under the action of the telescopic spring 76 and the fixing ring 77. As the knocking rod 78 moves, the fixing plate 35 vibrates back and forth in the stroke groove 32 through the slider 33. When the reciprocating screw 73 rotates, the threaded sleeve 81 will drive the connecting plate 82 to move up and down under the action of the thread. At this time, the connecting plate 82 will drive the slide plate 85 to move synchronously, and the first cleaning plate 86 and the second cleaning plate 87 clean the dust on the filter plate 36. When the filter plate 36 moves, the slide plate 85 will move back and forth in the slide groove 83 through the connecting block 84, so that the first cleaning plate 86 and the second cleaning plate 87 are always in contact with the filter plate 36.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An industrial fresh air ventilation device with multiple filtering mechanisms, comprising a mounting cover (1), characterized in that: A fixed cover (2) is fixedly mounted on the upper surface of the mounting cover (1), an air suction cover (4) is fixedly mounted on the inner wall of the mounting cover (1), an air inlet and an air outlet are respectively connected and mounted on the two side walls of the mounting cover (1), a knocking component (7) and a cleaning component (8) are arranged on the inner wall of the mounting cover (1), a multiple filtering component (3) is arranged on the inner wall of the bottom surface of the mounting cover (1), and a regulating component (6) is arranged on the inner side wall of the air suction cover (4); The knocking assembly (7) comprises a vibration motor (71), the outer surface of the vibration motor (71) being fixedly connected to the inner wall of the fixed cover (2), a reciprocating screw (73) being fixedly mounted on the output end of the vibration motor (71), one end of the reciprocating screw (73) extending to the interior of the mounting cover (1), and a rotating disk (72) being fixedly mounted on the outer surface of the reciprocating screw (73).

2. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 1 is characterized in that: A top block (74) is fixedly mounted on the outer surface of the rotating disk (72), a positioning plate (75) is fixedly mounted on the inner wall of the top surface of the mounting cover (1), a telescopic spring (76) is fixedly mounted on the side wall of the positioning plate (75), and a fixing ring (77) is fixedly mounted on one end of the telescopic spring (76).

3. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 2 is characterized in that: A knocking rod (78) is fixedly mounted on the inner wall of the fixing ring (77), one end of the knocking rod (78) passes through the interior of the telescopic spring (76) and extends to the outside of the other side wall of the positioning plate (75), and the other end of the knocking rod (78) is in contact with the outer surface of the rotating disk (72).

4. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 3 is characterized in that: The cleaning assembly (8) comprises a threaded sleeve (81), the inner wall of the threaded sleeve (81) being rotatably connected to the outer surface of the reciprocating screw (73), a connecting plate (82) being fixedly mounted on the side wall of the threaded sleeve (81), and a sliding groove (83) being provided on the side wall of the connecting plate (82).

5. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 4 is characterized in that: A connecting block (84) is slidably mounted on the inner wall of the slide groove (83), one end of the connecting block (84) extends to the outside of the slide groove (83), a sliding plate (85) is fixedly mounted on one end of the connecting block (84), a first cleaning plate (86) and a second cleaning plate (87) are fixedly mounted on the side wall of the sliding plate (85), and the cleaning directions of the first cleaning plate (86) and the second cleaning plate (87) are opposite.

6. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 5, characterized in that: The multi-filter assembly (3) comprises a mounting plate (31), the lower surface of the mounting plate (31) being provided with a travel groove (32), a slider (33) being slidably mounted on the inner wall of the travel groove (32), connecting springs (34) being fixedly mounted on both side walls of the slider (33), and one end of the connecting spring (34) being fixedly connected to the inner side wall of the travel groove (32).

7. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 6 is characterized in that: A fixing plate (35) is fixedly mounted on the lower surface of the sliding block (33), a filter plate (36) is fixedly mounted on the lower surface of the fixing plate (35), the filter plate (36) is located between the first cleaning plate (86) and the second cleaning plate (87), and a slot is provided on the upper surface of the mounting cover (1).

8. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 7 is characterized in that: The filter plate (36) is placed in the mounting cover (1) through a slot, the lower surface of the mounting plate (31) is fixedly connected to the upper surface of the mounting cover (1) by bolts, and one end of the knocking rod (78) is in contact with the side wall of the fixing plate (35).

9. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 8, characterized in that: The regulating component (6) comprises a fixed cylinder (61), one end of the fixed cylinder (61) being rotatably connected to the inner wall of the air suction hood (4), the other end of the fixed cylinder (61) being fixedly mounted with a rotating rod (9), the other inner wall of the air suction hood (4) being fixedly mounted with a driving motor (5), the output end of the driving motor (5) being fixedly connected to one end of the rotating rod (9), the outer surface of the rotating rod (9) being fixedly mounted with a toothed sprocket (10), and the toothed sprockets (10) being connected to each other via a toothed chain transmission.

10. The industrial fresh air ventilation equipment with multiple filtering mechanisms according to claim 9, characterized in that: A control motor (62) is fixedly mounted on the inner side wall of the fixed cylinder (61); a driving rod (63) is fixedly mounted on the output end of the control motor (62); a driving bevel gear (64) is fixedly mounted on the outer surface of the driving rod (63); a positioning rod (65) is rotatably mounted on the inner wall of the shell cavity of the fixed cylinder (61); one end of the positioning rod (65) extends to the inside of the fixed cylinder (61) and is fixedly mounted with a driven bevel gear (66); the driven bevel gear (66) is meshingly connected with the driving bevel gear (64); and the other end of the positioning rod (65) extends to the outside of the fixed cylinder (61) and is fixedly mounted with a fan blade (67).

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