Axial flow fan with self-cleaning function

Abstract

The utility model discloses an axial flow fan with a self-cleaning function, which relates to the related technical field of axial flow fans and comprises a machine body, a driving mechanism, a filter screen and a cleaning mechanism, an impeller is arranged in the machine body, the driving mechanism is arranged in the machine body and used for driving the impeller to rotate, and the filter screen is mounted at an air inlet of the machine body. The cleaning mechanism is arranged on the filter screen, and the cleaning mechanism rotates on the filter screen through the driving mechanism for cleaning. The arrangement mode that the driving mechanism, the filter screen and the cleaning mechanism are matched is utilized, the impeller can be driven by the driving mechanism to rotate to execute normal work of the axial flow fan, and when cleaning is needed, the cleaning mechanism can be driven by the driving mechanism to rotate on the filter screen, so that the cleaning efficiency is improved. Therefore, the two faces of the filter screen can be cleaned in the rotating process, the filter screen is not prone to being blocked by dust, air can enter the filter screen conveniently, the filter screen does not need to be detached, the labor intensity of workers is greatly relieved, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of axial flow fans, and in particular to axial flow fans with self-cleaning function. Background Technology

[0002] Axial flow fans, also known as local ventilation fans, are a type of fan commonly used in industrial and mining enterprises. However, unlike ordinary fans, their motor and blades are all inside a cylinder, giving them a cylindrical shape. They are used for local ventilation, are easy to install, provide significant ventilation and air exchange effects, are safe, and can be connected to ductwork to deliver air to designated areas.

[0003] However, existing axial flow fans typically have a filter screen installed at one end of the air inlet to filter dust from the air and prevent it from accumulating inside the axial flow fan. However, after a period of use, manual cleaning is required. When the centrifugal fan is installed in a poor environment, it needs to be cleaned again not long after the first cleaning, which is extremely inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an axial flow fan with self-cleaning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an axial flow fan with self-cleaning function, comprising:

[0006] The machine body has an impeller inside and a mounting plate fixedly connected to the top of the inner wall of the machine body;

[0007] A drive mechanism, which is located inside the machine body, is used to drive the impeller to rotate;

[0008] The filter screen is fixedly installed at the air inlet of the machine body;

[0009] A cleaning mechanism is disposed on a filter screen, and the cleaning mechanism is driven to rotate and clean the filter screen.

[0010] Preferably, the drive mechanism includes:

[0011] The motor is fixedly installed at the bottom of the inner wall of the machine body;

[0012] A transmission rod, wherein the output end of the motor is connected to the transmission rod for transmission;

[0013] A rotating rod is fixedly inserted into the impeller and rotatably inserted into the mounting plate;

[0014] The first gear is fixedly inserted and connected to the transmission rod and the rotating rod respectively, and the first gear is meshed.

[0015] Preferably, the drive mechanism further includes:

[0016] An extrusion block, with one end of the rotating rod fixedly connected to the extrusion block;

[0017] Preferably, the cleaning mechanism includes:

[0018] A rotating frame, which is rotatably mounted in the middle of the filter screen via bearings;

[0019] A rotating frame, which is symmetrically arranged at the bottom of the rotating frame with the filter screen as the center;

[0020] A cleaning cylinder, which is fixedly sleeved on the outside of the rotating frame;

[0021] The second gear is fixedly connected to the rotating frame;

[0022] The filter screen has annular grooves on both sides, and the toothed ring is fixedly connected inside the annular grooves. The second gear meshes with the toothed ring.

[0023] Preferably, the cleaning mechanism further includes:

[0024] An electric telescopic pole, which is fixedly installed on the outer wall of the mounting plate;

[0025] The output end of the electric telescopic rod is connected to the support frame via a transmission.

[0026] A sleeve is rotatably mounted inside a support frame via a bearing, and slidably mounted inside a rotating frame. One end of the sleeve has an extrusion groove that mates with an extrusion block, and the cross-section of the extrusion groove is polygonal.

[0027] Preferably, a limiting groove is provided at the other end of the sleeve, and a limiting rod is slidably inserted into the limiting groove. One end of the limiting rod is fixedly connected to the inner wall of the rotating frame, and the cross-section of the limiting rod is T-shaped.

[0028] The technical effects and advantages of this utility model are as follows:

[0029] This utility model utilizes a combination of a drive mechanism, a filter screen, and a cleaning mechanism. The drive mechanism rotates the impeller to ensure the normal operation of the axial flow fan. When cleaning is required, the drive mechanism connects with the cleaning mechanism, allowing the drive mechanism to drive the cleaning mechanism to rotate on the filter screen. This rotation cleans both sides of the filter screen, preventing dust from clogging it and facilitating airflow. The filter screen does not need to be disassembled, greatly reducing the labor intensity of workers and making it easy to use. Attached Figure Description

[0030] Figure 1 This is one of the schematic diagrams of the overall structure of this utility model.

[0031] Figure 2 This is the second schematic diagram of the overall structure of this utility model.

[0032] Figure 3 This is a schematic diagram of the overall front internal structure of this utility model.

[0033] Figure 4 This is a schematic diagram of the internal structure of the drive mechanism of this utility model from the front.

[0034] Figure 5 This is a schematic diagram of the internal structure of the cleaning mechanism of this utility model from the front.

[0035] In the diagram: 1. Machine body; 2. Impeller; 3. Drive mechanism; 31. Motor; 32. Transmission rod; 33. Rotating rod; 34. First gear; 35. Extrusion block; 4. Filter screen; 5. Cleaning mechanism; 51. Rotating frame; 52. Rotating frame; 53. Cleaning cylinder; 54. Second gear; 55. Gear ring; 56. Electric telescopic rod; 57. Support frame; 58. Sleeve; 59. Limiting rod; 6. Mounting plate. Detailed Implementation

[0036] 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.

[0037] Example 1

[0038] This utility model provides, for example Figure 1-4 The self-cleaning axial flow fan shown includes a body 1, a drive mechanism 3, a filter screen 4, and a cleaning mechanism 5. An impeller 2 is installed inside the body 1, and a mounting plate 6 is fixedly connected to the top of the inner wall of the body 1. The drive mechanism 3 is located inside the body 1 and drives the impeller 2 to rotate. The filter screen 4 is fixedly installed at the air inlet of the body 1. The cleaning mechanism 5 is located on the filter screen 4. The cleaning mechanism 5 cleans the filter screen 4 by rotating on it via the drive mechanism 3. The drive mechanism 3 drives the impeller 2 to rotate, performing normal operation of the axial flow fan. When cleaning is required, the drive mechanism 3 drives the cleaning mechanism 5 to rotate on the filter screen 4, thus cleaning both sides of the filter screen 4 during rotation. This prevents dust from clogging the filter screen 4, facilitates air intake, and eliminates the need to disassemble the filter screen 4, greatly reducing the labor intensity of workers and making it easy to use.

[0039] Specifically, the drive mechanism 3 includes a motor 31, a transmission rod 32, a rotating rod 33, a first gear 34, and an extrusion block 35. The motor 31 is fixedly installed at the bottom of the inner wall of the machine body 1. The motor 31 is electrically connected to an external power supply through an external switch. The output end of the motor 31 is connected to the transmission rod 32. The rotating rod 33 is fixedly inserted and connected to the impeller 2. The first gear 34 is fixedly inserted and connected to both the transmission rod 32 and the rotating rod 33. The first gear 34 is meshed with the transmission rod 32. One end of the rotating rod 33 is fixedly connected to the extrusion block 35. The motor 31 can drive the transmission rod 32 to rotate, thereby enabling the transmission rod 32 to drive the rotating rod 33 to rotate through the first gear 34, thus performing the normal operation of the axial flow fan.

[0040] Example 2

[0041] Based on Example 1, such as Figure 5 As shown, the cleaning mechanism 5 includes a rotating frame 51, a rotating frame 52, a cleaning cylinder 53, a second gear 54, a gear ring 55, an electric telescopic rod 56, a support frame 57, a sleeve 58, and a limiting rod 59. The rotating frame 51 is rotatably mounted in the middle of the filter screen 4 via bearings. The rotating frame 52 is symmetrically mounted at the bottom of the rotating frame 51 with the filter screen 4 as the center. The cleaning cylinder 53 is fixedly sleeved on the outside of the rotating frame 52. The second gear 54 is fixedly connected to the rotating frame 52. Annular grooves are provided on both sides of the filter screen 4. The gear ring 55 is fixedly connected inside the annular grooves. The second gear 54 meshes with the gear ring 55. The electric telescopic rod 56 is fixedly installed on the outer wall of the mounting plate 6. The output end of the electric telescopic rod 56 is connected to the support frame 57 via a transmission. The sleeve 58 is rotatably mounted inside the support frame 57 via bearings. The sleeve 58 is slidably mounted inside the rotating frame 51. One end of the sleeve 58 has an extrusion groove that cooperates with the extrusion block 35. The cross-section of the extrusion groove is... The sleeve 58 is polygonal, and a limiting groove is provided at the other end. A limiting rod 59 is slidably inserted into the limiting groove. One end of the limiting rod 59 is fixedly connected to the inner wall of the rotating frame 51. The cross-section of the limiting rod 59 is T-shaped. When it is necessary to clean the filter screen 4, the sleeve 58 on the rotating frame 51 can be pre-aligned with the internal squeezing block 35 with manual assistance. Then, the electric telescopic rod 56 can be activated, so that the support frame 57 drives the sleeve 58 to insert with the squeezing block 35. At this time, the squeezing block 35 driven by the motor 31 can drive the sleeve 58 to rotate, so that the rotating frame 51 can be rotated through the limiting rod 59. At the same time, the rotating frame 51 drives the rotating frame 52 to rotate, so that when the rotating frame 52 rotates, the second gear 54 on the rotating frame 52 can roll on the gear ring 55, so that the cleaning cylinder 53 can rotate on its own while rotating through the rotating frame 51, thereby cleaning the outer wall of the filter screen 4, which is convenient for use.

[0042] 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. An axial flow fan with self-cleaning function, characterized in that, include: The machine body (1) has an impeller (2) inside and an installation plate (6) is fixedly connected to the top of the inner wall of the machine body (1). The drive mechanism (3) is located inside the body (1) and is used to drive the impeller (2) to rotate. Filter screen (4), the filter screen (4) is fixedly installed at the air inlet of the body (1); A cleaning mechanism (5) is disposed on a filter screen (4), and the cleaning mechanism (5) is rotated on the filter screen (4) by a drive mechanism (3) to clean it.

2. The axial flow fan with self-cleaning function according to claim 1, characterized in that, The drive mechanism (3) includes: Motor (31), said motor (31) is fixedly installed at the bottom end of the inner wall of the machine body (1); The transmission rod (32) is connected to the output end of the motor (31) in a transmission connection. Rotating rod (33), the rotating rod (33) is fixedly inserted and connected to the impeller (2), and the rotating rod (33) is rotatably inserted and connected to the mounting plate (6); The first gear (34) is fixedly inserted and connected to the transmission rod (32) and the rotating rod (33) respectively, and the first gear (34) is meshed.

3. The axial flow fan with self-cleaning function according to claim 2, characterized in that, The drive mechanism (3) also includes: The extrusion block (35) is fixedly connected to one end of the rotating rod (33).

4. The axial flow fan with self-cleaning function according to claim 2, characterized in that, The cleaning mechanism (5) includes: A rotating frame (51) is rotatably mounted in the middle of the filter screen (4) via a bearing; A rotating frame (52) is symmetrically arranged at the bottom end of the rotating frame (51) with the filter screen (4) as the center. Cleaning cylinder (53), which is fixedly sleeved on the outside of rotating frame (52); The second gear (54) is fixedly connected to the rotating frame (52); The toothed ring (55) has an annular groove on both sides of the filter screen (4), and the toothed ring (55) is fixedly connected inside the annular groove. The second gear (54) meshes with the toothed ring (55).

5. The axial flow fan with self-cleaning function according to claim 4, characterized in that, The cleaning mechanism (5) also includes: An electric telescopic rod (56) is fixedly installed on the outer wall of the mounting plate (6); The support frame (57) is connected to the output end of the electric telescopic rod (56) via a transmission connection. A sleeve (58) is rotatably mounted inside a support frame (57) via a bearing. The sleeve (58) is slidably mounted inside a rotating frame (51). One end of the sleeve (58) is provided with an extrusion groove that cooperates with an extrusion block (35). The cross-section of the extrusion groove is polygonal.

6. The axial flow fan with self-cleaning function according to claim 5, characterized in that, The other end of the sleeve (58) has a limiting groove, and a limiting rod (59) is slidably inserted into the inside of the limiting groove. One end of the limiting rod (59) is fixedly connected to the inner wall of the rotating frame (51), and the cross section of the limiting rod (59) is T-shaped.

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