Automatic cleaning industrial fan

Abstract

The invention belongs to the technical field of industrial fans, and discloses an automatic cleaning industrial fan which comprises a support, a transmission motor and a shell are fixedly connected to the support, the output end of the transmission motor penetrates into the shell and is fixedly connected with an impeller, and a mounting cylinder is fixedly mounted on the shell through bolts; the automatic cleaning piece is arranged in the shell; the automatic cleaning part comprises a double-shaft motor, the double-shaft motor is fixedly connected to the shell, and the top end of an output shaft of the double-shaft motor is fixedly connected with a worm. The double-shaft motor and the worm drive the worm gear, the toothed bar and the first reciprocating lead screw to rotate, so that the first reciprocating lead screw drives the flushing part to comprehensively flush the impeller, and it is ensured that the impeller is clean and free of dead corners; and meanwhile, the toothed bar drives the arc-shaped plate and the scraping plate to rotate through the toothed ring and the spring reset piece, the scraping plate scrapes off accumulated dust in the shell in a self-adaptive mode, the whole cleaning process does not need manual intervention, and the cleaning process can be automatically completed when the draught fan is not used.

Description

Technical Field

[0001] This invention belongs to the field of industrial fan technology, specifically an automatic clean industrial fan. Background Technology

[0002] Industrial fans are key equipment for gas transportation, ventilation and heat dissipation in industrial production. They are widely used in mining, metallurgy, chemical industry, power and other fields. Centrifugal fans rely on input mechanical energy to increase gas pressure and discharge gas. Centrifugal fans occupy an important position due to their high air pressure and stable flow rate. However, during long-term operation, centrifugal fans often transport air containing impurities such as dust, fibers and oil mist. These impurities are easy to gradually deposit and adhere on the impeller surface, blade gaps and inner wall of the fan casing.

[0003] As the core rotating component of a fan, impurities adhering to the impeller's surface can damage the original aerodynamic shape of the blades, leading to increased fan operating resistance and energy consumption. In severe cases, it can also cause impeller dynamic imbalance. Dust accumulation on the inner wall of the fan casing can reduce the effective flow cross-section and decrease ventilation efficiency. Currently, cleaning centrifugal fans mostly relies on manual operation after shutdown, which requires disassembling the fan casing for rinsing and wiping. This is time-consuming, labor-intensive, and increases the difficulty of manual cleaning and maintenance costs. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides an automatic clean industrial fan, including a bracket, a drive motor and a housing fixedly connected to the bracket, the output end of the drive motor extending through the interior of the housing and fixedly connected to an impeller, an mounting cylinder fixedly installed on the housing by bolts, and an automatic cleaning component disposed inside the housing; The automatic cleaning component includes a dual-axis motor, which is fixedly connected to the housing. A worm gear is fixedly connected to the top of the output shaft of the dual-axis motor. A rack is fixedly connected to the inside of the housing via a bearing. A worm wheel is fixedly connected to the rack. The worm gear meshes with the worm wheel. A reciprocating lead screw is fixedly connected to one end of the rack. A rinsing component is provided on the surface of the reciprocating lead screw. As the reciprocating screw rotates, it drives the flushing component to reciprocate along the direction of approaching / moving away from the drive motor, thereby flushing the impeller and the housing.

[0005] In the above technical solution, preferably, the flushing component includes a movable sleeve, the movable sleeve is connected to a reciprocating lead screw, the movable sleeve is provided with a concave flushing sleeve, one end of the concave flushing sleeve passes through the mounting cylinder and extends into the outer shell, and the concave flushing sleeve is provided with a water spray hole facing the inner wall of the outer shell and the impeller. The concave flushing sleeve is connected to one end of a concave tube, and the other end of the concave tube extends into the interior of a fixed water guide pipe, which is connected to an inlet solenoid valve.

[0006] In the above technical solution, preferably, a concave plate is fixedly connected to the outer shell, the bottom of the movable sleeve is slidably connected to the inside of the concave plate, two square sleeves are fixedly connected to the mounting cylinder, both of the square sleeves are fitted onto the surface of the concave flushing sleeve, and a sealing ring is fixedly connected to the fixed water guide pipe, the inner wall of the sealing ring being in contact with the surface of the concave pipe.

[0007] In the above technical solution, preferably, a scraping component is further provided inside the outer shell. The scraping component includes a toothed ring, which is disposed inside the outer shell. A spring return component is provided on the toothed ring. An arc-shaped plate connected to the spring return component is hinged to the toothed ring via a shaft. A scraper is fixedly connected to one end of the arc-shaped plate. One side of the scraper is in contact with the inner wall of the outer shell. An L-shaped ring is fixedly connected inside the outer shell, and the toothed ring is slidably sleeved on the L-shaped ring.

[0008] In the above technical solution, preferably, the spring reset component includes a rotating cylinder, which is hinged to the toothed ring via a shaft. A spring is fixedly connected inside the rotating cylinder, and a trapezoidal rod is fixedly connected to one end of the spring. One end of the trapezoidal rod passes through the rotating cylinder and is hinged to the surface of the arc-shaped plate via the shaft.

[0009] In the above technical solution, preferably, it further includes an anti-clogging and sewage discharge component that is connected to the outer shell for discharging sewage. The anti-clogging and sewage discharge component includes a collection cylinder, which is connected to the bottom of the outer shell. A drain solenoid valve is connected to the bottom of the collection cylinder. The other output shaft of the dual-shaft motor is provided with a gear commutator. A crushing blade is fixedly connected to the output end of the gear commutator. One end of the crushing blade is inserted through the inside of the collection cylinder.

[0010] In the above technical solution, preferably, a second sealing ring is fixedly connected to the collecting cylinder, and the inner wall of the second sealing ring is in contact with the surface of the crushing blade.

[0011] In the above technical solution, preferably, a cleaning component is provided at the end of the rack away from the reciprocating lead screw one. The cleaning component includes a reciprocating lead screw two and a sleeve plate. The reciprocating lead screw two is fixedly connected to the rack, and the sleeve plate is movably connected to the reciprocating lead screw two through a connecting rod and a connecting sleeve. Symmetrically arranged bristles are fixedly connected inside the sleeve plate.

[0012] In the above technical solution, preferably, a pulley is fixedly connected to the reciprocating screw two, and a pulley two is movably connected to the surface of the transmission motor. The pulley one is connected to the pulley two via a belt. A side plate is fixedly connected to the pulley two, and one side of the side plate is in contact with the surface of the transmission motor.

[0013] In the above technical solution, preferably, a support sleeve is fixedly connected to the bracket, the inner wall of the support sleeve is in contact with the surface of the reciprocating lead screw, and two symmetrically arranged sliding rods are fixedly connected inside the bracket, with the sleeve plate slidably sleeved on the surface of the sliding rods.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses a dual-axis motor and worm gear to drive the worm wheel, rack, and reciprocating screw to rotate. The reciprocating screw drives the flushing components to thoroughly flush the impeller, ensuring a clean and thorough cleaning. Simultaneously, the rack drives the arc-shaped plate and scraper to rotate via a toothed ring and spring reset component. The scraper adaptively scrapes off accumulated dust inside the casing. The entire cleaning process requires no manual intervention and can be completed automatically when the fan is not in use. This ensures cleaning efficiency, reduces manual maintenance costs, improves the operational stability of the industrial fan, avoids situations where manual cleaning is not performed, and improves ventilation efficiency to a certain extent.

[0015] Furthermore, during the automatic cleaning process, the debris scraped off by the scraper may contain clumps of impurities. If discharged directly, these impurities can easily clog the drain outlet, affecting the continuity of cleaning and the efficiency of wastewater discharge. However, through the design of the anti-clogging wastewater discharge components, including the collection cylinder, drain solenoid valve, and pulverizing blade, the dual-shaft motor drives the pulverizing blade to rotate inside the collection cylinder via a gear commutator. This can pulverize large impurities or fibrous materials in the wastewater, preventing impurities from clogging the drain solenoid valve and ensuring the smooth discharge of wastewater containing impurities.

[0016] Furthermore, during long-term operation of the drive motor, dust easily accumulates on its heat dissipation fins. If not cleaned in time, this can lead to a decrease in the motor's heat dissipation efficiency, causing overheating and even the risk of burnout. However, through the structural design of the reciprocating screw two, sleeve plate, and brush in the cleaning assembly, the rack drives the sleeve plate to move back and forth via the reciprocating screw two. The internal brush can thoroughly clean the heat dissipation fins, effectively removing the attached dust. As the drive motor runs, its internal fan blades blow away any remaining dust, eliminating the need for regular manual cleaning and extending the drive motor's lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the bracket of the present invention; Figure 3 This is a cross-sectional schematic diagram of the impeller of the present invention; Figure 4 This is a cross-sectional schematic diagram of the outer casing of the present invention; Figure 5 This is a schematic diagram of the reciprocating lead screw of the present invention; Figure 6This is a schematic diagram of the structure of the toothed rod of the present invention; Figure 7 This is a cross-sectional schematic diagram of the spring reset component of the present invention; Figure 8 This is a schematic diagram of the concave flushing sleeve of the present invention; Figure 9 This is a cross-sectional schematic diagram of the toothed ring of the present invention.

[0018] In the diagram: 1. Bracket; 2. Drive motor; 3. Housing; 4. Impeller; 5. Mounting cylinder; 6. Automatic cleaning component; 61. Dual-shaft motor; 62. Worm gear; 63. Gear rack; 64. Worm wheel; 65. Reciprocating lead screw; 66. Flushing component; 661. Moving sleeve; 662. Concave flushing sleeve; 663. Concave tube; 67. Scraper; 671. Gear ring; 672. Spring return component; 6721. Rotating cylinder; 6722. Spring; 6723. Trapezoidal rod; 673. Arc plate; 674. Scraper; 675. L-shaped ring; 68. Fixed water guide pipe; 69. Water inlet solenoid valve; 7. Anti-clogging sewage discharge component; 71. Collection cylinder; 72. Drainage solenoid valve; 73. Gear reversing device; 74. Crusher bar; 8. Concave plate; 9. Square sleeve; 10. Sealing ring one; 11. Sealing ring two; 12. Cleaning assembly; 121. Reciprocating screw two; 122. Sleeve plate; 123. Brush bristles; 13. Pulley one; 14. Pulley two; 15. Side plate; 16. Support sleeve; 17. Slide bar. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, the present invention provides an automatic clean industrial fan, including a bracket 1, a drive motor 2 and a housing 3 fixedly connected to the bracket 1, the output end of the drive motor 2 passing through the interior of the housing 3 and fixedly connected to an impeller 4, an installation cylinder 5 fixedly installed on the housing 3 by bolts, and an automatic cleaning component 6 disposed inside the housing 3. The automatic cleaning component 6 includes a dual-axis motor 61, which is fixedly connected to the housing 3. A worm gear 62 is fixedly connected to the top of the output shaft of the dual-axis motor 61. A rack 63 is fixedly connected to the inside of the housing 3 through a bearing. A worm wheel 64 is fixedly connected to the rack 63. The worm gear 62 meshes with the worm wheel 64. A reciprocating lead screw 65 is fixedly connected to one end of the rack 63. A rinsing component 66 is provided on the surface of the reciprocating lead screw 65. The reciprocating screw 65 rotates, driving the flushing component 66 to reciprocate along the direction of approaching / moving away from the drive motor 2, thereby flushing the impeller 4 and the housing 3.

[0021] Specifically, the outer casing 3 and impeller 4 are both made of stainless steel. The drive motor 2 consists of a stepper motor, fan blades, a fan cover, and heat dissipation fins. The fan blades are fixedly connected to the left end of the stepper motor output shaft. The fan cover is fixedly connected to the stepper motor through a connecting plate and is fitted onto the surface of the fan blades. The heat dissipation fins are fixedly connected to the surface of the stepper motor. The rotation of the fan blades guides the air and cools the stepper motor through the heat dissipation fins. The outer ring of the bearing is fixedly connected inside the outer casing 3, and the inner ring of the bearing is fixedly connected to the rack 63. The bearing can prevent the rack 63 from moving left or right.

[0022] like Figures 4 to 8 As shown, the flushing component 66 includes a movable sleeve 661, which is connected to the reciprocating lead screw 65. The movable sleeve 661 is provided with a concave flushing sleeve 662, one end of which passes through the mounting cylinder 5 and extends into the outer shell 3. One end of a concave tube 663 is connected to the concave flushing sleeve 662, and the other end of the concave tube 663 extends into the interior of the fixed water guide pipe 68. A water inlet solenoid valve 69 is connected to the fixed water guide pipe 68.

[0023] Specifically, the concave flushing sleeve 662 has several water spray holes located inside the outer shell 3. The several water spray holes are evenly distributed. When the concave tube 663 moves, it can slide inside the fixed water guide tube 68. In use, the reciprocating screw 65 drives the moving sleeve 661 to move back and forth. The moving sleeve 661 drives the concave flushing sleeve 662 to move axially along the impeller 4. Combined with the concave structure's ability to wrap around the impeller 4, the key parts of the impeller 4 are cleaned without dead corners.

[0024] like Figure 5 and Figure 8 As shown, a concave plate 8 is fixedly connected to the outer shell 3, and the bottom of the movable sleeve 661 is slidably connected to the inside of the concave plate 8. Two square sleeves 9 are fixedly connected to the mounting cylinder 5, and both square sleeves 9 are fitted onto the surface of the concave flushing sleeve 662. A sealing ring 10 is fixedly connected to the fixed water guide pipe 68, and the inner wall of the sealing ring 10 is in contact with the surface of the concave pipe 663.

[0025] Specifically, the bottom of the movable sleeve 661 is square in shape, and a support plate is fixedly connected to the bottom of one side of the movable sleeve 661. One end of the support plate is fixedly connected to the concave tube 663, and the support plate can provide auxiliary support for the concave tube 663. By setting the concave plate 8, the movable sleeve 661 can be supported and limited, which improves the stability of the movable sleeve 661 when it moves; the square sleeve 9 can support the concave flushing sleeve 662 through the mounting cylinder 5, which prevents the concave flushing sleeve 662 from shaking when it moves. By setting a sealing ring 10, the connection between the fixed water guide pipe 68 and the concave pipe 663 can be sealed to prevent water from leaking out through the gap and affecting the water spray pressure.

[0026] like Figures 5 to 7 As shown, it also includes a scraper 67 disposed inside the outer casing 3. The scraper 67 includes a toothed ring 671 disposed inside the outer casing 3. A spring return member 672 is disposed on the toothed ring 671. An arc-shaped plate 673 connected to the spring return member 672 is hinged to the toothed ring 671 via a shaft. A scraper 674 is fixedly connected to one end of the arc-shaped plate 673. One side of the scraper 674 is in contact with the inner wall of the outer casing 3. An L-shaped ring 675 is fixedly connected inside the outer casing 3. The toothed ring 671 is slidably sleeved on the L-shaped ring 675.

[0027] Specifically, the L-shaped ring 675 supports the toothed ring 671 and ensures that the toothed ring 671 can rotate stably. When the toothed rod 63 rotates, it drives the arc plate 673 to rotate through the toothed ring 671. The arc plate 673 drives the scraper 674 to scrape off the impurities adhering to the inner wall of the outer shell 3. Since the outer shell 3 is volute-shaped, the spring reset member 672 will press the scraper 674 through the arc plate 673 to adapt to the curvature changes at different positions of the volute. This keeps the scraper 674 always in contact with the inner wall of the outer shell 3, adapting to different positions of the outer shell 3 and effectively scraping off impurities.

[0028] like Figure 7 As shown, the spring reset component 672 includes a rotating cylinder 6721, which is hinged to the gear ring 671 via a shaft. A spring 6722 is fixedly connected inside the rotating cylinder 6721. One end of the spring 6722 is fixedly connected to a trapezoidal rod 6723, and one end of the trapezoidal rod 6723 passes through the rotating cylinder 6721 and is hinged to the surface of the arc plate 673 via a shaft.

[0029] Specifically, spring 6722 is a stainless steel spring 6722; the surface of trapezoidal rod 6723 is in contact with the inner wall of rotating cylinder 6721; spring 6722 can continuously push arc plate 673 through trapezoidal rod 6723 to ensure the pressure of arc plate 673.

[0030] like Figures 3 to 6As shown, it also includes an anti-clogging and sewage discharge component 7 that is connected to the outer casing 3 for discharging sewage. The anti-clogging and sewage discharge component 7 includes a collection cylinder 71, which is connected to the bottom of the outer casing 3. A drain solenoid valve 72 is connected to the bottom of the collection cylinder 71. Another output shaft of the dual-shaft motor 61 is provided with a gear commutator 73. A crushing blade 74 is fixedly connected to the output end of the gear commutator 73. One end of the crushing blade 74 is inserted through the inside of the collection cylinder 71.

[0031] Specifically, the gear commutator 73 consists of a commutator housing and two bevel gears, which can achieve commutation; the crushing bar 74 consists of a rotating rod and stainless steel blades, which can quickly crush agglomerated impurities and are not prone to rusting.

[0032] like Figure 5 and Figure 8 As shown, a sealing ring 2 11 is fixedly connected to the collecting cylinder 71, and the inner wall of the sealing ring 2 11 is in contact with the surface of the crushing blade rod 74.

[0033] Specifically, the sealing ring 2 11 can seal the connection between the collecting cylinder 71 and the crushing blade 74, thereby improving the sealing effect of the collecting cylinder 71.

[0034] like Figure 1 and Figure 5 As shown, a cleaning assembly 12 is provided at the end of the rack 63 away from the reciprocating lead screw 65. The cleaning assembly 12 includes a reciprocating lead screw 121 and a sleeve 122. The reciprocating lead screw 121 is fixedly connected to the rack 63, and the sleeve 122 is movably connected to the reciprocating lead screw 121 through a connecting rod and a connecting sleeve. Symmetrically arranged bristles 123 are fixedly connected inside the sleeve 122.

[0035] Specifically, the bristles 123 are made of high-temperature resistant rubber; when the toothed rod 63 rotates, it drives the reciprocating lead screw 121 to rotate, and the reciprocating lead screw drives the sleeve plate 122 to move back and forth. The sleeve plate 122 then drives the bristles 123 to brush off the impurities on the heat sink fins of the drive motor 2. At the same time, when the drive motor 2 is running, the fan blades of the drive motor 2 will blow away the remaining impurities and dust, thereby improving the heat conduction effect of the heat sink fins.

[0036] like Figure 1 As shown, a pulley 13 is fixedly connected to the reciprocating lead screw 121, and a pulley 14 is movably connected to the surface of the drive motor 2. The pulley 13 is connected to the pulley 14 via a belt. A side plate 15 is fixedly connected to the pulley 14, and one side of the side plate 15 is in contact with the surface of the drive motor 2.

[0037] Specifically, the surface of the shroud of the drive motor 2 is provided with an annular groove, and the second pulley 14 is slidably connected inside the annular groove. The annular groove can limit the movement of the second pulley 14. When the first pulley 13 rotates, it can drive the second pulley 14 to rotate through the belt. The second pulley 14 drives the side plate 15 to rotate, and the side plate 15 will scrape off the impurities accumulated on the shroud of the drive motor 2, thereby improving the ventilation efficiency of the shroud.

[0038] like Figure 1 As shown, a support sleeve 16 is fixedly connected to the bracket 1. The inner wall of the support sleeve 16 is in contact with the surface of the reciprocating lead screw 121. Two symmetrically arranged slide rods 17 are fixedly connected inside the bracket 1. The sleeve plate 122 is slidably sleeved on the surface of the slide rods 17.

[0039] Specifically, the support sleeve 16 can support the reciprocating lead screw 121, thereby improving the stability of the reciprocating lead screw 121 during rotation. At the same time, the slide rod 17 can support and limit the sleeve plate 122, preventing the sleeve plate 122 from rotating or shaking during movement.

[0040] Working principle and usage process of this invention: When cleaning is required, the drive motor 2 drives the impeller 4 to rotate slowly, and then the dual-shaft motor 61, the water inlet solenoid valve 69 and the drain solenoid valve 72 are started. The dual-shaft motor 61 drives the worm wheel 64 to rotate through the worm 62, the worm wheel 64 drives the rack 63 to rotate, and the rack 63 drives the reciprocating screw 65 to rotate synchronously. The reciprocating screw 65 drives the concave flushing sleeve 662 to move back and forth left and right through the moving sleeve 661. The external tap water pipe or water supply equipment injects water into the fixed water guide pipe 68 through the water inlet solenoid valve 69. The water flows through the fixed water guide pipe 68 and the concave pipe 663 to the interior of the concave flushing sleeve 662. The concave flushing sleeve 662 sprays water to thoroughly flush the rotating impeller 4. When the rack 63 rotates, it drives the arc plate 673 to rotate through the gear ring 671. The arc plate 673 drives the scraper 674 to scrape off the impurities adhering to the inner wall of the outer shell 3. Since the outer shell 3 is volute-shaped, according to the curvature changes at different positions of the volute, when the scraper 674 rotates, the spring reset member 672 will press the scraper 674 through the arc plate 673, so that the scraper 674 adapts to the dust removal treatment of the inner wall of the outer shell 3. The scraped-off impurities and wastewater fall into the collection cylinder 71. The dual-shaft motor 61 drives the crushing blade 74 to rotate through the gear commutator 73. The crushing blade 74 crushes the clumps of impurities, allowing the wastewater to be quickly discharged through the drain solenoid valve 72, thereby achieving the effect of automatic cleaning.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic clean industrial fan, comprising a support (1), wherein a drive motor (2) and a housing (3) are fixedly connected to the support (1), the output end of the drive motor (2) extends into the interior of the housing (3) and is fixedly connected to an impeller (4), and a mounting cylinder (5) is fixedly installed on the housing (3) by bolts, characterized in that, It also includes an automatic cleaning component (6) located inside the housing (3); The automatic cleaning component (6) includes a dual-axis motor (61), which is fixedly connected to the housing (3). A worm gear (62) is fixedly connected to the top of the output shaft of the dual-axis motor (61). A rack (63) is fixedly connected to the inside of the housing (3) through a bearing. A worm wheel (64) is fixedly connected to the rack (63). The worm gear (62) meshes with the worm wheel (64). A reciprocating screw (65) is fixedly connected to one end of the rack (63). A rinsing component (66) is provided on the surface of the reciprocating screw (65). As the reciprocating screw (65) rotates, it drives the flushing component (66) to reciprocate in the direction of approaching / moving away from the drive motor (2) to flush the impeller (4) and the housing (3).

2. The automatic clean industrial fan according to claim 1, characterized in that: The flushing component (66) includes a movable sleeve (661), which is connected to a reciprocating lead screw (65). The movable sleeve (661) is provided with a concave flushing sleeve (662), one end of which passes through the mounting cylinder (5) and extends into the outer shell (3). The concave flushing sleeve (662) is provided with a water spray hole facing the inner wall of the outer shell (3) and the impeller (4). The concave flushing sleeve (662) is connected to one end of a concave tube (663), and the other end of the concave tube (663) extends into the interior of a fixed water guide pipe (68). The fixed water guide pipe (68) is connected to an inlet solenoid valve (69).

3. An automatic clean industrial fan according to claim 2, characterized in that: A concave plate (8) is fixedly connected to the outer shell (3). The bottom of the movable sleeve (661) is slidably connected to the inside of the concave plate (8). Two square sleeves (9) are fixedly connected to the mounting cylinder (5). Both square sleeves (9) are fitted onto the surface of the concave flushing sleeve (662). A sealing ring (10) is fixedly connected to the fixed water guide pipe (68). The inner wall of the sealing ring (10) is in contact with the surface of the concave pipe (663).

4. An automatic clean industrial fan according to claim 1, characterized in that: It also includes a scraper (67) disposed inside the outer casing (3). The scraper (67) includes a toothed ring (671) disposed inside the outer casing (3). A spring return member (672) is disposed on the toothed ring (671). An arc-shaped plate (673) connected to the spring return member (672) is hinged to the toothed ring (671) via a shaft. A scraper (674) is fixedly connected to one end of the arc-shaped plate (673). One side of the scraper (674) is in contact with the inner wall of the outer casing (3). An L-shaped ring (675) is fixedly connected inside the outer casing (3). The toothed ring (671) is slidably sleeved on the L-shaped ring (675).

5. An automatic cleanroom industrial fan according to claim 4, characterized in that: The spring reset component (672) includes a rotating cylinder (6721), which is hinged to a gear ring (671) via a shaft. A spring (6722) is fixedly connected inside the rotating cylinder (6721). One end of the spring (6722) is fixedly connected to a trapezoidal rod (6723), and one end of the trapezoidal rod (6723) passes through the rotating cylinder (6721) and is hinged to the surface of the arc plate (673) via a shaft.

6. An automatic clean industrial fan according to claim 1, characterized in that: It also includes a clogging and draining component (7) connected to the outer shell (3) for discharging sewage. The clogging and draining component (7) includes a collection cylinder (71) connected to the bottom of the outer shell (3). The bottom of the collection cylinder (71) is connected to a drain solenoid valve (72). The other output shaft of the dual-shaft motor (61) is provided with a gear commutator (73). The output end of the gear commutator (73) is fixedly connected to a crushing blade (74). One end of the crushing blade (74) is inserted through the inside of the collection cylinder (71).

7. An automatic cleanroom industrial fan according to claim 6, characterized in that: A sealing ring 2 (11) is fixedly connected to the collection cylinder (71), and the inner wall of the sealing ring 2 (11) is in contact with the surface of the crushing blade rod (74).

8. An automatic clean industrial fan according to claim 1, characterized in that: A cleaning assembly (12) is provided at the end of the rack (63) away from the reciprocating lead screw (65). The cleaning assembly (12) includes a reciprocating lead screw (121) and a sleeve (122). The reciprocating lead screw (121) is fixedly connected to the rack (63). The sleeve (122) is movably connected to the reciprocating lead screw (121) through a connecting rod and a connecting sleeve. Symmetrically arranged bristles (123) are fixedly connected inside the sleeve (122).

9. An automatic cleanroom industrial fan according to claim 8, characterized in that: A pulley (13) is fixedly connected to the reciprocating screw (121), and a pulley (14) is movably connected to the surface of the drive motor (2). The pulley (13) is connected to the pulley (14) via a belt. A side plate (15) is fixedly connected to the pulley (14), and one side of the side plate (15) is in contact with the surface of the drive motor (2).

10. An automatic cleanroom industrial fan according to claim 8, characterized in that: A support sleeve (16) is fixedly connected to the bracket (1). The inner wall of the support sleeve (16) is in contact with the surface of the reciprocating screw (121). Two symmetrically arranged slide rods (17) are fixedly connected inside the bracket (1). The sleeve plate (122) is slidably sleeved on the surface of the slide rods (17).

Images