Ash deposition resistant centrifugal fan with self-cleaning impeller

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses an anti-dust-deposition centrifugal fan with a self-cleaning impeller, which comprises a support, the top of the support is fixedly connected with a machine shell, the top of the machine shell is fixedly connected with an air outlet pipe, the top of the machine shell is provided with a replacement mechanism, and the outer part of the machine shell is fixedly connected with a motor. The output end of the motor is fixedly connected with an impeller body, the outside of the impeller body is fixedly connected with a plurality of blades, and the outside of the machine shell is fixedly connected with a filter plate. According to the blade cleaning device, through the elastic effect of the spring and the sliding effect of the sliding plate, the blade is rapidly cleaned, meanwhile, after cleaning is completed, the brush can be rapidly taken out to be cleaned and replaced, and the working efficiency is improved; besides, through mutual cooperation of a spring and a filter plate, the problem that the interior of the equipment cannot be rapidly overhauled is solved, meanwhile, external dirt is prevented from entering the interior of the equipment, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, and in particular to a centrifugal fan with a self-cleaning impeller that resists dust accumulation. Background Technology

[0002] A centrifugal fan is a fluid machine that uses the centrifugal force generated by the high-speed rotation of an impeller to accelerate and discharge gas. Its working principle is that the impeller draws in gas, accelerates it, and then a diffuser or guide vanes convert kinetic energy into pressure energy, thereby increasing the gas pressure.

[0003] Centrifugal fans with self-cleaning impellers effectively prevent dust accumulation on the impeller, reducing vibration and malfunctions through optimized design and advanced technology. For example, genetic algorithms and neural network prediction models are used to optimize impeller parameters, improving the anti-dust accumulation effect; or online self-cleaning devices utilize nozzles and air delivery pipes to clean dust from the blades, reducing maintenance costs. Furthermore, some designs incorporate anti-dust coating technology to extend the equipment's service life.

[0004] Although existing anti-dust centrifugal fans with self-cleaning impellers can meet the needs of most scenarios, the brushes cannot be quickly replaced after cleaning the impeller blades to improve the service life of the equipment. Therefore, an anti-dust centrifugal fan with a self-cleaning impeller is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a centrifugal fan with a self-cleaning impeller to prevent dust accumulation, aiming to improve the problem in the prior art that the brushes for cleaning the blades cannot be quickly replaced.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A centrifugal fan with a self-cleaning impeller and dust accumulation prevention includes a support frame, a housing fixedly connected to the top of the support frame, an air outlet pipe fixedly connected to the top of the housing, a replacement mechanism installed on the top of the housing, a motor fixedly connected to the outside of the housing, an impeller body fixedly connected to the output end of the motor, several blades fixedly connected to the outside of the impeller body, a filter plate fixedly connected to the outside of the housing, and a snap-fit ​​mechanism installed on the outside of the housing. The replacement mechanism includes a plug-in assembly, a stabilizing assembly, and a sliding assembly. The plug-in assembly includes a housing, which is fixedly connected to the outside of the housing. A pin is slidably connected inside the housing, a spring is sleeved on the outside of the pin, and a limit plate is fixedly connected to the outside of the pin.

[0008] As a further description of the above technical solution:

[0009] The stabilizing component includes a sliding plate that is slidably connected to the top of the housing. A slot is provided in the middle of the sliding plate, and a pin engages with the slot.

[0010] As a further description of the above technical solution:

[0011] The sliding assembly includes a slider, which is fixedly connected to the outside of the slide plate. A groove is provided on the top of the housing, and the slider is slidably connected inside the groove. A brush is fixedly connected to the bottom of the slider.

[0012] As a further description of the above technical solution:

[0013] The buckling mechanism includes a transmission component and a fixing component. The transmission component includes a second outer shell, which is fixedly connected to the outside of the machine housing. Two insert blocks are slidably connected in the middle of the second outer shell. A partition is fixedly connected inside the second outer shell. A second spring is fixedly connected between the two insert blocks and the partition. The insert plate is fixedly connected to the outside of the filter plate. An insertion hole is opened in the middle of the insert plate, and the insert blocks are engaged with the insertion hole.

[0014] As a further description of the above technical solution:

[0015] A vertical rod is fixedly connected inside the outer casing, and the two inserts are slidably connected to the outside of the vertical rod.

[0016] As a further description of the above technical solution:

[0017] The bracket is equipped with casters at its bottom;

[0018] As a further description of the above technical solution:

[0019] The bracket is externally fixed with a handle.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the blades are quickly cleaned by the elastic action of the spring and the sliding action of the slide plate. After cleaning, the brush can be quickly removed for cleaning and replacement, which improves work efficiency.

[0022] 2. In this utility model, the cooperation between the spring and the filter plate solves the problem of not being able to quickly inspect the inside of the equipment, while also preventing external dirt from entering the equipment and improving the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a centrifugal fan with a self-cleaning impeller that resists dust accumulation, as proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the handle of a centrifugal fan with a self-cleaning impeller that is designed to prevent dust accumulation, as proposed in this utility model.

[0025] Figure 3 This is a cross-sectional schematic diagram of a replacement mechanism for a centrifugal fan with a self-cleaning impeller that resists dust accumulation, as proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the impeller body of an anti-dust centrifugal fan with a self-cleaning impeller proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the slide plate of a centrifugal fan with a self-cleaning impeller that is designed to prevent dust accumulation, as proposed in this utility model.

[0028] Figure 6 This is a cross-sectional schematic diagram of the snap-fit ​​mechanism of a centrifugal fan with a self-cleaning impeller that is designed to prevent dust accumulation, as proposed in this utility model.

[0029] Legend:

[0030] 1. Bracket; 2. Housing; 3. Casters; 4. Motor; 5. Filter plate; 6. Air outlet duct; 7. Slide plate; 8. Handle; 9. Outer shell one; 10. Pin; 11. Limiting plate; 12. Spring one; 13. Slot; 14. Brush; 15. Impeller body; 16. Blade; 17. Insert plate; 18. Slider; 19. Slide groove; 20. Insertion hole; 21. Insert block; 22. Outer shell two; 23. Spring two; 24. Partition plate; 25. Vertical rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-5This utility model provides an embodiment of an anti-dust centrifugal fan with a self-cleaning impeller, comprising a support 1, a housing 2 fixedly connected to the top of the support 1 to protect the internal equipment from damage, an air outlet pipe 6 fixedly connected to the top of the housing 2 to discharge air, a replacement mechanism installed on the top of the housing 2 to replace the cleaning brush 14, a motor 4 fixedly connected to the outside of the housing 2 to drive the impeller body 15 to rotate, the output end of the motor 4 fixedly connected to the impeller body 15 to drive the impeller body 15 to rotate, a plurality of blades 16 fixedly connected to the outside of the impeller body 15, the rotation of the impeller body 15 to drive the blades 16 to rotate, a filter plate 5 fixedly connected to the outside of the housing 2 to block dust, a snap-fit ​​mechanism installed on the outside of the housing 2 to tightly connect the filter plate 5 to the outside of the housing 2; the replacement mechanism includes a plug-in component, a stabilizing component and a sliding component, the plug-in component including a housing 9 fixedly connected to the housing. 2. Externally, the internal parts are protected by the outer casing 9. A pin 10 is slidably connected inside the outer casing 9 to secure the slide plate 7. A spring 12 is fitted around the pin 10, allowing it to quickly return to its original position. A limit plate 11 is fixedly connected to the outside of the pin 10 to prevent it from popping out due to excessive elasticity. The stabilizing component includes the slide plate 7, which is slidably connected to the top of the casing 2. The slide plate 7 can control the blade 16. For cleaning, a slot 13 is provided in the middle of the skateboard 7, and the pin 10 is engaged with the slot 13. By inserting the pin 10 into the slot 13, the skateboard 7 can be fixed. The sliding component includes a slider 18, which is fixedly connected to the outside of the skateboard 7. A slide groove 19 is provided on the top of the housing 2, and the slider 18 is slidably connected inside the slide groove 19. The slider 18 allows the skateboard 7 to slide more smoothly into the housing 2. A brush 14 is fixedly connected to the bottom of the slider 18, which can clean the blade 16 more thoroughly.

[0033] Reference Figure 1 , Figure 2 and Figure 6The latching mechanism includes a transmission component and a fixing component. The transmission component includes a second outer shell 22, which is fixedly connected to the outside of the housing 2. The second outer shell 22 protects the internal parts from damage. Two insert blocks 21 are slidably connected in the middle of the second outer shell 22, which can tightly fix the filter plate 5 to the outside of the housing 2. A partition 24 is fixedly connected inside the second outer shell 22, which prevents the two second springs 23 from sliding to the side when compressed. The two insert blocks 21 are fixedly connected to the partition 24, and the elasticity of the second springs 23 allows the insert blocks 21 to quickly return to their original position. The fixing component includes an insert plate. 17. Insert plate 17 is fixedly connected to the outside of filter plate 5. Insert plate 17 has an insertion hole 20 in the middle. Insert block 21 is engaged with insertion hole 20. Inserting the insertion block 21 into insertion hole 20 allows the filter plate 5 and the housing 2 to fit tightly together, preventing damage to the internal equipment caused by external force. A vertical rod 25 is fixedly connected inside the housing 22. The vertical rod 25 allows the insertion block 21 to run more stably. The two insertion blocks 21 are slidably connected to the outside of the vertical rod 25. A universal wheel 3 is installed at the bottom of the bracket 1. The universal wheel 3 allows the equipment to be moved. A handle 8 is fixedly connected to the outside of the bracket 1. The handle 8 allows the operator to push the equipment more smoothly.

[0034] Working principle: First, when it is necessary to clean the blades 16, start the motor 4. At this time, the impeller body 15 will rotate, and drive the external blades 16 to rotate. When the blades 16 rotate, the brush 14 at the top inside the housing 2 will clean the rotating blades 16. After the equipment has been used for a long time, the brush 14 at the bottom of the slide plate 7 will have a lot of dirt. At this time, by pulling the pin 10, the pin 10 is pulled out from the slot 13 in the middle of the slide plate 7, and then the slide plate 7 is pulled out for cleaning and replacement. After cleaning, the slide plate 7 is inserted again, and then the pin 10 is released. The pin 10 can then be firmly inserted into the slot 13 again, and the slide plate 7 is firmly fixed to the top of the housing 2.

[0035] Secondly, when it is necessary to open the filter plate 5 for maintenance, the extension of the insert block 21 can be pressed towards the center. At this time, the insert block 21 will press the spring 23 against the partition plate 24, and the insert block 21 will slide out from the insertion hole 20 on the insert plate 17. Then the filter plate 5 can be opened to inspect the inside of the equipment. After the inspection is completed, the filter plate 5 can be closed again, and then the hand that pressed the insert block 21 can be released. Due to the elasticity of the spring 23, the insert block 21 will immediately return to its original position and be inserted into the insertion hole 20, sealing the equipment tightly to prevent internal damage or large particles of dirt from entering.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, comprising a support frame (1), characterized in that: The bracket (1) is fixedly connected to the top of the housing (2), the housing (2) is fixedly connected to the top of the air outlet pipe (6), the housing (2) is installed with a replacement mechanism, the housing (2) is fixedly connected to the outside of the housing (2), the motor (4) is fixedly connected to the output end of the motor (4), the impeller body (15) is fixedly connected to the outside of the impeller body (15), a number of blades (16) are fixedly connected to the outside of the impeller body (15), the housing (2) is fixedly connected to the outside of the housing (2), and the housing (2) is installed with a buckle mechanism. The replacement mechanism includes a plug-in assembly, a stabilizing assembly, and a sliding assembly. The plug-in assembly includes a housing (9), which is fixedly connected to the outside of the housing (2). A pin (10) is slidably connected inside the housing (9). A spring (12) is sleeved on the outside of the pin (10). A limit plate (11) is fixedly connected to the outside of the pin (10).

2. The anti-dust centrifugal fan with a self-cleaning impeller according to claim 1, characterized in that: The stabilizing component includes a slide plate (7), which is slidably connected to the top of the housing (2). A slot (13) is provided in the middle of the slide plate (7), and the pin (10) engages with the slot (13).

3. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, as described in claim 2, is characterized in that: The sliding assembly includes a slider (18), which is fixedly connected to the outside of the slide plate (7). The top of the housing (2) is provided with a groove (19), and the slider (18) is slidably connected inside the groove (19). A brush (14) is fixedly connected to the bottom of the slider (18).

4. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, as described in claim 1, is characterized in that: The buckling mechanism includes a transmission component and a fixing component. The transmission component includes a second outer shell (22), which is fixedly connected to the outside of the housing (2). Two inserts (21) are slidably connected in the middle of the second outer shell (22). A partition (24) is fixedly connected inside the second outer shell (22). A second spring (23) is fixedly connected between the two inserts (21) and the partition (24).

5. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, as described in claim 4, characterized in that: The fixing component includes a plug plate (17), which is fixedly connected to the outside of the filter plate (5). A plug hole (20) is provided in the middle of the plug plate (17), and the plug block (21) is engaged with the plug hole (20).

6. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, as described in claim 4, is characterized in that: A vertical rod (25) is fixedly connected inside the outer shell (22), and two inserts (21) are slidably connected to the outside of the vertical rod (25).

7. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, as described in claim 1, characterized in that: The bracket (1) is equipped with casters (3) at its bottom.

8. A centrifugal fan with a self-cleaning impeller and designed to prevent dust accumulation, as described in claim 4, characterized in that: The bracket (1) is externally fixedly connected to a handle (8).

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