A fan with wind blades convenient to clean and a method for using the same

By designing a servo motor-driven scraper structure on the fan, the problem of disassembling the fan blades for cleaning was solved, achieving efficient cleaning and simplified maintenance.

CN116816735BActive Publication Date: 2026-02-03NANTONG YUDING HVAC EQUIP CO LTD
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Patent Information

Application Number
CN202211303174.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-24
Publication Date
2026-02-03
Estimated Expiration
2042-10-24

AI Technical Summary

Technical Problem

Existing methods for cleaning fan blades require disassembling the fan, resulting in long cleaning times and low efficiency.

Method used

Design an easy-to-clean fan structure that uses a servo motor-driven scraper structure to clean dust without disassembling the fan blades. The structure includes a combination of a fixed frame, a fixed plate, a slide bar, and a scraper, and uses elastic sheets and springs to move and reset the scraper.

Benefits of technology

It enables efficient cleaning of fan blade dust without disassembling the fan blades, improving cleaning efficiency and simplifying the process of replacing and maintaining the fan blades.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a fan with wind blades convenient to clean and a use method thereof, and relates to the technical field of fan maintenance. The fan comprises a fixed frame, a fixed support is fixedly connected to the rear part of the fixed frame, a servo motor is fixedly connected to the middle part of the fixed support, a rotating disc is fixedly connected to the output end of the servo motor, fan blades are equidistantly fixedly connected to the rotating disc, a fixed disc is fixedly connected to the front part of the fixed frame through four connecting plates, four sliding rods are slidingly connected to the fixed disc, fixed plates are fixedly connected to the rear part of the sliding rods, six sliding grooves are formed in the side of the fixed plates, and scrapers are slidingly connected into the six sliding grooves. The scraper and the fixed plate structure are installed on the fixed disc in the mode, and the pressing plate structure capable of driving the scraper to move is installed on one side of the front part of the fixed disc. When the fan blades need to be cleaned, the fan blades can be cleaned without being disassembled, the cleaning of the fan blades becomes very convenient, and the cleaning efficiency of the fan blades is improved.
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Description

Technical Field

[0001] This invention relates to the field of fan maintenance technology, specifically to a fan that facilitates cleaning of its blades and its usage method. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. In China, "fan" is a common abbreviation for gas compression and gas transportation machinery, and the term "fan" usually includes ventilators, blowers, and wind turbines.

[0003] Currently, dust accumulates on the fan blades of operating fans. Over time, this dust buildup weakens the airflow, reducing the fan's performance. Cleaning fan blades typically involves removing the shroud to clean them or disassembling the blades for individual cleaning. These methods are cumbersome, requiring disassembly and reassembly of the fan, thus prolonging the cleaning process and reducing efficiency. Therefore, a fan with easily cleanable blades and its operating method have been designed to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a fan with easily cleanable blades, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fan for easy cleaning of fan blades, comprising a fixed frame, a fixed bracket fixedly connected to the rear of the fixed frame, a servo motor fixedly connected to the middle of the fixed bracket, a turntable fixedly connected to the output end of the servo motor, fan blades fixedly connected at equal intervals on the turntable, a fixed plate fixedly connected to the front of the fixed frame via four connecting plates, four sliding rods slidably connected to the fixed plate, a fixed plate fixedly connected to the rear of the sliding rods, and six sliding grooves provided on the side of the fixed plate, with scrapers slidably connected within the six sliding grooves.

[0006] The scraper can be driven by a fixed plate, allowing it to approach and clean the fan blades. This removes dust from the blades without disassembling them, facilitating cleaning and improving efficiency.

[0007] In a further embodiment, the scraper is arc-shaped on the side near the fan blade, and the scraper is fixedly connected to the fixing block by a torsion spring on the side near the fixing plate. The fixing block slides in the groove, and an elastic sheet is fixedly connected in the groove. One side of the elastic sheet is fixedly connected to the fixing block.

[0008] By using a scraper structure installed at the front of the fan blades, the fan blades can be cleaned without disassembling them. Furthermore, the scraper structure is designed to fit the fan blades, allowing six scrapers to clean each of the six blades individually, further improving the cleaning efficiency.

[0009] In a further embodiment, the fixing plate is hexagonal, and the grooves are evenly distributed on the sides of the fixing plate, which facilitates the installation of the scraper and makes the scraper easy to use.

[0010] In a further embodiment, four connecting plates are fixed at equal intervals on the side of the fixed plate, and the included angle between adjacent connecting plates is 90 degrees. The method of fixing the connecting plates to the perimeter of the fixed frame makes the fixed plate structure very sturdy.

[0011] In a further embodiment, a limiting groove is provided on the rear part of the connecting plate away from the fixed plate. A first spring is fixedly connected to the upper end of the limiting groove. An insert plate is fixedly connected to the side of the first spring away from the inner wall of the upper end of the limiting groove. The insert plate is inserted into the insert block. The side of the insert block away from the insert plate is fixedly connected to the fixed frame.

[0012] The No. 1 spring structure facilitates the restoration of the pressing plate after it has been moved, which in turn facilitates the restoration of the scraper, allowing the scraper to be used repeatedly.

[0013] In a further embodiment, the insert block is rotatably connected to the limiting block on the side away from the fixed frame, and the limiting block and the insert plate are adapted to each other.

[0014] In a further embodiment, the front part of the slide rod passes through the fixed plate and is fixedly connected to the button plate. The middle part of the button plate near the fixed plate is fixedly connected to the second spring, and the side of the second spring away from the button plate is fixedly connected to the fixed plate.

[0015] By fixing the slide bar and the push plate to the fixed plate, the scraper and slide bar structure can be removed together simply by removing the fixed plate before the fan blades are disassembled for replacement.

[0016] Preferably, the cleaning method for a fan that facilitates cleaning of the fan blades, as described above, includes the following steps:

[0017] A1. When cleaning the fan blades, first stop the servo motor, and then use a board to limit the fan blades to prevent them from rotating during cleaning.

[0018] A2. Push the slide bar to push the fixed plate closer to the turntable. The fixed plate will drive the scraper to move, bringing the scraper closer to the fan blades on the turntable. The movement of the scraper will bring it into contact with the fan blades, causing the scraper to scrape off the dust attached to the surface of the fan blades.

[0019] A3. Simply move the fixed plate to separate the scraper from the fan blade.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention relates to a fan with easily cleanable blades:

[0022] 1. By installing the scraper and fixed plate structure on the fixed plate, and installing the push plate structure that can drive the scraper to move on one side of the front of the fixed plate, the fan blades can be cleaned without disassembling them when cleaning is needed, making fan blade cleaning very convenient and improving the cleaning efficiency of the fan blades.

[0023] 2. By using a plug-in block, the disassembly of the fixed plate is quick and easy, making it convenient to remove the fixed plate, which facilitates the replacement and repair of the fan blades, and also makes it easier to clean the scraper. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of the main structure of the present invention;

[0025] Figure 2 This is a rear view schematic diagram of the main structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection structure between the fixed disk and the connecting plate of the present invention;

[0027] Figure 4 This is a schematic diagram of the connection structure between the pressing plate and the fixing plate of the present invention;

[0028] Figure 5 For the present invention Figure 2 Enlarged view of structure A.

[0029] In the diagram: 1. Fixed frame; 2. Fixed bracket; 3. Servo motor; 4. Turntable; 41. Fan blade; 5. Fixed plate; 51. Connecting plate; 52. Limiting groove; 53. Spring No. 1; 54. Insert plate; 6. Press plate; 61. Slide rod; 62. Spring No. 2; 7. Fixed plate; 71. Elastic sheet; 72. Fixed block; 8. Scraper; 9. Inserting block; 91. Limiting block. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below. 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.

[0031] Example 1

[0032] Please see Figure 1-5This embodiment provides a fan with easy-to-clean blades and its usage method, including a fixed frame 1, a fixed bracket 2 fixedly connected to the rear of the fixed frame 1, a servo motor 3 fixedly connected to the middle of the fixed bracket 2, a turntable 4 fixedly connected to the output end of the servo motor 3, and fan blades 41 fixedly connected at equal intervals on the turntable 4. During use, dust accumulates on the fan blades 41. Over time, the accumulation of dust on the fan blades 41 weakens the airflow, reducing the fan's performance. Cleaning the fan blades 41 is generally done by… The fan cover is removed to clean the fan blades 41, or the fan blades 41 are disassembled and cleaned one by one. This cleaning method is more troublesome. In actual operation, the fan needs to be disassembled and then reinstalled after disassembly and cleaning, which makes the cleaning time of the fan blades 41 longer. Therefore, the fixing plate 5 is fixedly connected to the front of the fixing frame 1 by four connecting plates 51. Four sliding rods 61 are slidably connected to the fixing plate 5. The rear of the sliding rods 61 is fixedly connected to the fixing plate 7. The side of the fixing plate 7 has six sliding grooves, and the scraper 8 is slidably connected in the six sliding grooves.

[0033] The scraper 8 can be driven by the fixed plate 7, so that the scraper 8 can get close to the fan blade 41 and clean the fan blade 41. The dust attached to the fan blade 41 can be removed without disassembling the fan blade 41, which facilitates the cleaning of the fan blade 41 and improves the cleaning efficiency of the fan blade 41.

[0034] When cleaning the fan blades 41, the servo motor 3 needs to be stopped first to keep the fan blades 41 stationary. Then, a clamping plate is used to hold the fan blades 41 in place, and the six fan blades 41 are respectively aligned with the six scrapers 8 to prevent the fan blades 41 from rotating during cleaning and to facilitate cleaning. Then, the button 6 is pressed to push the six sliding rods 61 to move, and the sliding rods 61 drive the fixing plate 7 to move. The movement of the button 6 will compress the second spring 62 to retract, and the fixing plate 7 will drive the six scrapers 8 on the side to move, thereby approaching the fan blades 41 and cleaning the fan blades 41.

[0035] Since the fan blades 41 are all curved inclined plates, when cleaning the fan blades 41 with the scraper 41, the scraper 8 needs to be curved on the side near the fan blades 41, and the scraper 8 needs to be fixedly connected to the fixing block 72 by a torsion spring on the side near the fixing plate 7. The fixing block 72 slides in the slide groove, and the elastic sheet 71 is fixedly connected in the slide groove. One side of the elastic sheet 71 is fixedly connected to the fixing block 72, so that when the scraper 8 is cleaning the fan blades 41, it can tilt and move due to the resistance of the fan blades 41, so that the scraper 8 can continue to move and clean the rear of the fan blades 41.

[0036] Because the scraper 8 is inclined near the fan blade 41, it can adhere to the surface of the fan blade 41. Since the fan blade 41 is an inclined arc plate, when the scraper 8 contacts the fan blade 41, it will scrape off the dust on the surface of the fan blade 41. Limited by the fan blade 41, the scraper 8 will tilt and move to one side, continuously scraping the surface of the fan blade 41. Meanwhile, the fixing block 72 on one side of the scraper 8 slides in the groove and squeezes the elastic sheet 71. When the rear of the scraper 8 contacts the rear of the fan blade 41, the pressing plate 6 can be released, causing the second spring 62 to return to its original position, which in turn causes the sliding rod 61 to return to its original position, which in turn causes the fixing plate 7 to return to its original position, which in turn causes the scraper 8 to return to its original position, separating the scraper 8 from the fan blade 41. The above actions can then be repeated, allowing the scraper 8 to repeatedly clean the fan blade 41.

[0037] By using the scraper 8 structure installed at the front of the fan blade 41, the fan blade 41 can be cleaned without disassembling it. The scraper 8 structure is adapted to the fan blade 41, so that the six scrapers 8 can clean the six fan blades 41 respectively, further improving the cleaning efficiency of the fan blade 41.

[0038] Furthermore, to facilitate the installation of the scraper 8, the fixing plate 7 is set in a hexagonal shape, and the grooves are evenly distributed on the sides of the fixing plate 7.

[0039] Example 2

[0040] Please see Figure 1-5 Further improvements were made based on Example 1:

[0041] After long-term use, both scraper 8 and fan blade 41 need to be maintained or replaced. Since scraper 8 is installed at the front of fan blade 41, scraper 8 needs to be disassembled when replacing fan blade 41. If the installation of scraper 8 is complicated, it will be difficult to disassemble fan blade 41. Therefore, a pressing plate 6 is fixedly connected to the front of sliding rod 61 through fixing plate 5. A second spring 62 is fixedly connected to the middle of the side of pressing plate 6 near fixing plate 5. The side of the second spring 62 away from pressing plate 6 is fixedly connected to fixing plate 5.

[0042] By fixing the slide bar 61 and the push plate 6 to the fixed plate 5, the scraper 8 and slide bar 61 can be disassembled together by simply removing the fixed plate 5 before disassembling the fan blade 41 for replacement.

[0043] Furthermore, the connecting plates 51 are fixed at equal intervals on the side of the fixed plate 5, and the included angle between adjacent connecting plates 51 is 90 degrees. The way in which the four connecting plates 51 are fixed around the fixed frame 1 makes the installation of the fixed plate 5 more secure.

[0044] Example 3

[0045] Please see Figure 1-5Further improvements were made based on Example 2:

[0046] Limiting grooves 52 are provided on the rear side of the connecting plate 51 away from the fixed plate 5. A first spring 53 is fixedly connected to the upper end of the limiting groove 52. A plug plate 54 is fixedly connected to the inner wall of the upper end of the first spring 53 away from the limiting groove 52. The plug plate 54 is plugged into the plug block 9. The side of the plug block 9 away from the plug plate 54 is fixedly connected to the fixed frame 1.

[0047] The insert 9 is rotatably connected to the limiting block 91 on the side away from the fixed frame 1, and the limiting block 91 and the insert plate 54 are adapted to each other.

[0048] When it is necessary to replace or repair the fan blades, the limit block 91 can be rotated and rotated 90 degrees. Then, the insert plate 54 is pulled to separate the insert plate 54 from the insert block 9. In the same way, the insert plate 54 and the insert block 9 are separated. Then, the fixing plate 5 is separated from the fixing frame 1, and the fixing plate 7 and the pressing plate 6 installed on the fixing plate 5 are removed together. Then, the fan blades 41 are replaced and repaired.

[0049] The complete operating procedure is as follows: When cleaning the fan blades 41, the servo motor 3 needs to be stopped first to keep the fan blades 41 stationary. Then, a clamping plate is used to hold the fan blades 41 in place, and the six fan blades 41 are aligned with the six scrapers 8 one by one to prevent the fan blades 41 from rotating during cleaning and to facilitate cleaning. Then, the button 6 is pressed to push the six sliding rods 61 to move, and the sliding rods 61 drive the fixing plate 7 to move. The movement of the button 6 will compress the second spring 62 to retract, and the fixing plate 7 will drive the six scrapers 8 on the side to move, so that the scrapers 8 are close to the fan blades 41. Since the scrapers 8 are inclined when they approach the fan blades 41, the scrapers 8 can adhere to the fan blades. The surface of the fan blade 41 is covered by a curved plate. When the scraper 8 contacts the fan blade 41, the scraper 8 will scrape off the dust on the surface of the fan blade 41. Limited by the fan blade 41, the scraper 8 will tilt and move to one side and continuously scrape the surface of the fan blade 41. The fixing block 72 on one side of the scraper 8 slides in the groove and squeezes the elastic sheet 71. When the rear of the scraper 8 contacts the rear of the fan blade 4, the pressing plate 6 can be released, so that the second spring 62 returns to its original state and drives the sliding rod 61 to return to its original state, so that the fixing plate 7 returns to its original state and drives the scraper 8 to return to its original state, so that the scraper 8 separates from the fan blade 41. Then the above actions can be repeated so that the scraper 8 repeatedly cleans the fan blade 41.

[0050] 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. A cleaning method for a fan with easy-to-clean blades, the fan comprising a fixed frame (1), a fixed bracket (2) fixedly connected to the rear of the fixed frame (1), a servo motor (3) fixedly connected to the middle of the fixed bracket (2), a turntable (4) fixedly connected to the output end of the servo motor (3), and fan blades (41) fixedly connected at equal intervals on the turntable (4), characterized in that: The front part of the fixed frame (1) is fixedly connected to the fixed plate (5) by four connecting plates (51). Four sliding rods (61) are slidably connected on the fixed plate (5). The rear part of the sliding rods (61) is fixedly connected to the fixed plate (7). The fixed plate (7) has six sliding grooves on its side, and scrapers (8) are slidably connected in the six sliding grooves. The scraper (8) is arc-shaped on the side near the fan blade (41). The scraper (8) is fixedly connected to the fixing block (72) by a torsion spring on the side near the fixing plate (7). The fixing block (72) slides in the groove. An elastic sheet (71) is fixedly connected in the groove. One side of the elastic sheet (71) is fixedly connected to the fixing block (72). The cleaning method for the fan blades that facilitate cleaning includes the following steps: A1. When cleaning the fan blades (41), first stop the servo motor (3), and then use a board to limit the fan blades (41) to prevent them from rotating during cleaning: A2. Push the slide bar (61) to push the fixed plate (7) closer to the turntable (4). The fixed plate (7) will drive the scraper (8) to move, so that the scraper (8) is close to the fan blade (41) on the turntable (4). The movement of the scraper (8) will contact the fan blade (41), so that the scraper (8) will scrape off the dust attached to the surface of the fan blade (41): A3. Move the fixed plate (7) to separate the scraper (8) from the fan blade (41).

2. The cleaning method for a fan with easily cleanable blades according to claim 1, characterized in that: The fixing plate (7) is hexagonal, and the grooves are evenly distributed on the sides of the fixing plate (7).

3. The cleaning method for a fan with easily cleanable blades according to claim 1, characterized in that: The four connecting plates (51) are fixed at equal intervals on the side of the fixed plate (5), and the included angle between adjacent connecting plates (51) is 90 degrees.

4. The cleaning method for a fan with easily cleanable blades according to claim 1, characterized in that: Each of the connecting plates (51) has a limiting groove (52) on the rear side away from the fixed plate (5). A first spring (53) is fixedly connected to the upper end of the limiting groove (52). A plug plate (54) is fixedly connected to the inner wall of the upper end of the first spring (53) away from the limiting groove (52). The plug plate (54) is inserted into the plug block (9). The plug block (9) is fixedly connected to the fixed frame (1) on the side away from the plug plate (54).

5. A cleaning method for a fan with easily cleanable blades according to claim 4, characterized in that: The insert (9) is rotatably connected to the limiting block (91) on the side away from the fixed frame (1), and the limiting block (91) and the insert plate (54) are compatible.

6. The cleaning method for a fan with easily cleanable blades according to claim 1, characterized in that: The front part of the slide rod (61) passes through the fixed plate (5) and is fixedly connected to the button plate (6). The middle part of the button plate (6) near the fixed plate (5) is fixedly connected to the second spring (62). The side of the second spring (62) away from the button plate (6) is fixedly connected to the fixed plate (5).

Citation Information

Patent Citations

  • Exhaust fan convenient for cleaning fan blades

    CN110056517A

  • Cleaning mechanism of industrial dust removal fan

    CN209025893U