A convenient to scrub axial flow fan

Abstract

This utility model discloses an axial flow fan that is easy to clean, belonging to the field of fans. It includes a fan body, an impeller rotatably mounted inside the fan body, and several fan blades mounted on the impeller. Dust screens are detachably mounted at both ends of the fan body. A support is fixedly connected inside the fan body, and a limiting member is slidably mounted on the support. The limiting member can slide along the axial direction of the fan body and extend between two adjacent fan blades. A positioning component is provided on the fan body, which can position the limiting member. By setting the limiting member that can slide between two fan blades, when cleaning the impeller surface, the limiting member can be placed between two fan blades, thereby reducing the rotation amplitude of the fan blades and facilitating vigorous wiping of the fan blade surface.

Description

Technical Field

[0001] This utility model discloses an axial flow fan that is easy to clean, belonging to the field of fans. Background Technology

[0002] Axial flow fans have a wide range of applications. They are a type of fan in which the airflow direction is the same as the axis of the fan blades. Examples include electric fans and air conditioner outdoor unit fans.

[0003] Axial flow fans require regular maintenance during use. One maintenance item is to regularly remove dust and debris from the fan and ducts. The common practice is to remove the dust screen on the axial flow fan and then reach inside the fan to wipe it. However, when wiping the fan blades on the impeller, the impeller rotates when the blades are under force, making it difficult to position and apply force when wiping the blades, which can be inconvenient.

[0004] In response to the above problems, a new improvement plan is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an axial flow fan that is easy to clean in order to solve the above-mentioned problems.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: an axial flow fan that is easy to clean, comprising a fan body, an impeller rotatably disposed inside the fan body, a plurality of fan blades disposed on the impeller, dustproof nets detachably disposed at both ends of the fan body, a support fixedly connected inside the fan body, a limiting member slidably disposed on the support, the limiting member being slidable along the axial direction of the fan body and extending between two adjacent fan blades, and a positioning component disposed on the fan body, the positioning component being able to position the limiting member.

[0007] Preferably, a lever is fixedly connected to the limiting member, and a sliding groove is provided on the fan body. The sliding groove extends along the axial direction of the fan body, and the lever passes through the sliding groove to the outside of the fan body and can slide along the sliding groove.

[0008] Preferably, the positioning component includes a snap-fit ​​member, a rotating shaft, and a fixed base. The fixed base is fixedly connected to the fan body, the snap-fit ​​member is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the fixed base. The snap-fit ​​member has a bent portion at one end near the lever, and the bent portion can abut against the lever.

[0009] Preferably, a torsion spring is installed on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the snap-fit ​​component and the fixing seat, respectively.

[0010] Preferably, the positioning components are symmetrically arranged in two sets at both ends of the slide.

[0011] Preferably, a protective sleeve is fitted onto the limiting member.

[0012] Preferably, a number of mounting bases are fixedly connected to the main body of the fan, and the dustproof net is detachably connected to the mounting bases by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are: By setting a sliding limiter that can change position, when maintaining the axial flow fan and removing the dust filter to clean the fan blades, the limiter can be slid and inserted between two adjacent fan blades. This allows the fan blades to abut against the limiter to prevent large-scale rotation and makes it easier for maintenance personnel to vigorously wipe the surface of the fan blades. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure along the middle AA direction; Figure 4 This is a schematic diagram of the extended state of the limiting member of this utility model; Figure 5 This is a schematic diagram of the positioning component structure of this utility model.

[0015] Reference numerals in the attached drawings: 1. Fan body; 2. Impeller; 3. Fan blade; 4. Dustproof net; 5. Support; 6. Limiting component; 7. Lever; 8. Slide groove; 9. Snap-fit ​​component; 10. Shaft; 11. Fixed base; 12. Bending part; 13. Torsion spring; 14. Protective sleeve; 15. Mounting base; 16. Bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an axial flow fan that is easy to clean includes a fan body 1. An impeller 2 is rotatably mounted inside the fan body 1, and several fan blades 3 are mounted on the impeller 2. Dust screens 4 are detachably mounted at both ends of the fan body 1. Although dust screens 4 are provided on the fan body 1, dust or other stains inevitably accumulate on the impeller 2 and fan blades 3 during daily use. A support 5 is fixedly connected inside the fan body 1 of this product. A limiting component 6 is slidably mounted on the support 5. The limiting component 6 can slide along the axial direction of the fan body 1 and extend between two adjacent fan blades 3. The body 1 is equipped with a positioning component, which can position the limiting component 6. When the product is used normally for blowing air, the limiting component 6 is in a position away from the fan blade 3 and will not interfere with the fan blade 3. When the machine is stopped for maintenance, the staff can remove the dust screen 4 to ensure that they can reach into the fan body 1 to clean the fan blade 3. At this time, the staff can release the positioning component from the limiting component 6 and then slide the limiting component 6 to insert it between two adjacent fan blades 3, so that the fan blade 3 can abut against the limiting component 6 to avoid large-scale rotation, making it convenient for maintenance personnel to vigorously clean the surface of the fan blade 3.

[0018] The limiting component 6 of this product is fixedly connected to a lever 7. A sliding groove 8 is provided on the fan body 1. The sliding groove 8 extends along the axial direction of the fan body 1. The lever 7 extends through the sliding groove 8 to the outside of the fan body 1 and can slide along the sliding groove 8. This design allows the lever 7, which extends to the outside of the fan body 1, to be directly grasped by hand when the position of the limiting component 6 needs to be changed. By pulling the lever 7, the limiting component 6 can be moved to slide inside the fan body 1 without having to put your hand inside the fan body 1 to contact the limiting component 6, which is more convenient.

[0019] like Figure 1 and Figure 5As shown, the positioning assembly includes a snap-fit ​​component 9, a rotating shaft 10, and a fixed base 11. The fixed base 11 is fixedly connected to the fan body 1, the snap-fit ​​component 9 is fixedly connected to the rotating shaft 10, and the rotating shaft 10 is rotatably connected to the fixed base 11. The snap-fit ​​component 9 has a bent portion 12 formed at one end near the lever 7. The bent portion 12 can abut against the lever 7. When positioning the limiting component 6, the snap-fit ​​component 9 is rotated first to raise it, and then the lever 7 is pushed to approach the snap-fit ​​component 9. Then the snap-fit ​​component 9 is lowered so that it overlaps the lever 7 and the bent portion 12 abuts against one side of the lever 7, thereby preventing the limiting component 6 from sliding freely. In addition, a torsion spring 13 is installed on the rotating shaft 10. The two ends of the torsion spring 13 are fixedly connected to the snap-fit ​​component 9 and the fixed base 11, respectively. By adding the torsion spring 13, the snap-fit ​​component 9 can maintain the posture of pressing down and locking the lever 7, avoiding the vibration generated during the operation of the fan body 1 that causes the snap-fit ​​component 9 to lift.

[0020] For example Figure 1 As shown, the positioning components are symmetrically arranged in two sets at both ends of the slide groove 8. This design allows the limiting member 6 to be positioned by means of the positioning components when it is far away from the fan blade 3 or when it is inserted between two adjacent fan blades 3, thus avoiding unnecessary slippage.

[0021] Furthermore, a protective sleeve 14 is fitted on the limiting member 6. The protective sleeve 14 can be made of rubber. When the limiting member 6 is inserted between the two fan blades 3, the fan blades 3 will inevitably collide with the limiting member 6 during cleaning. The protective sleeve 14 made of rubber can abut against the edge of the fan blades 3 to reduce damage.

[0022] Finally, several mounting bases 15 are fixedly connected to the main body 1 of the fan. The dustproof net 4 is detachably connected to the mounting base 15 by bolts 16. This design can ensure the stability of the dustproof net 4 during installation and also facilitates disassembly.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An axial flow fan that is easy to clean, comprising a fan body, an impeller rotatably disposed within the fan body, and a plurality of blades disposed on the impeller, characterized in that: Dustproof nets are detachably installed at both ends of the fan body. A support is fixedly connected inside the fan body. A limiting component is slidably installed on the support. The limiting component can slide along the axial direction of the fan body and extend into the space between two adjacent fan blades. A positioning component is provided on the fan body. The positioning component can position the limiting component.

2. The axial flow fan for easy cleaning according to claim 1, characterized in that: A lever is fixedly connected to the limiting member, and a sliding groove is provided on the fan body. The sliding groove extends along the axial direction of the fan body, and the lever passes through the sliding groove to the outside of the fan body and can slide along the sliding groove.

3. The axial flow fan for easy cleaning according to claim 2, characterized in that: The positioning component includes a snap-fit ​​component, a rotating shaft, and a fixed base. The fixed base is fixedly connected to the main body of the fan. The snap-fit ​​component is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the fixed base. The snap-fit ​​component has a bent portion at one end near the lever, and the bent portion can abut against the lever.

4. The axial flow fan that is easy to clean according to claim 3, characterized in that: A torsion spring is installed on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the snap-fit ​​component and the fixing seat, respectively.

5. The axial flow fan for easy cleaning according to claim 4, characterized in that: The positioning components are symmetrically arranged in two sets at both ends of the slide.

6. The axial flow fan for easy cleaning according to claim 1, characterized in that: A protective sleeve is fitted onto the limiting component.

7. The axial flow fan for easy cleaning according to claim 1, characterized in that: Several mounting bases are fixedly connected to the main body of the fan, and the dustproof net is detachably connected to the mounting bases by bolts.

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