Axial flow fan with high installation precision

Abstract

The utility model discloses an axial flow fan with high installation precision, and belongs to the technical field of axial flow fans. The utility model discloses an axial flow fan with high installation precision. The axial flow fan comprises a fan shell and a protective frame, the two protection frames are located at the two ends of the fan shell correspondingly. The limiting ring is fixedly connected with the fan shell; the connecting column is fixedly connected with the protective frame; the first sliding block is fixedly connected with the connecting column; the limiting column is horizontally and slidably connected with the limiting ring; the push ring is horizontally connected with the fan shell in a sliding manner; the limiting column is sleeved with the first spring, and the two ends of the first spring are fixedly connected with the push ring and the limiting ring; the limiting ring is provided with a first sliding groove extending in the circumferential direction of the limiting ring. The first sliding block moves along the first sliding groove. The first sliding block comprises a limiting hole; and the limiting holes are used for inserting the limiting columns. The axial flow fan has the beneficial effects that the axial flow fan is convenient to disassemble and high in mounting precision.

Description

Technical Field

[0001] The present application relates to the technical field of axial flow fans, and in particular to an axial flow fan with high installation precision. Background Art

[0002] Axial flow fans are widely used. They are fans that direct the airflow in the same direction as the axis of the fan blades. For example, electric fans and air conditioner outdoor fans are axial flow fans, usually driven by motors.

[0003] The axial flow fan includes a fan housing and a protective frame. The fan needs to be cleaned internally after long-term use. The existing fan housing and protective frame are generally fixed by multiple screws. When cleaning, the screws need to be loosened one by one, which is troublesome.

[0004] Therefore, an axial flow fan with high installation accuracy and easy disassembly is provided. Utility Model Content

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide an axial flow fan with high installation precision, including: a fan casing and a protective frame; the protective frame is provided with two, respectively located at the two ends of the fan casing; a limit ring, fixedly connected to the fan casing; a connecting column, fixedly connected to the protective frame; a first slider, fixedly connected to the connecting column; a limit column, horizontally slidingly connected to the limit ring; a push ring, horizontally slidingly connected to the fan casing; a first spring, sleeved on the limit column, and fixedly connected to the push ring and the limit ring at both ends respectively; wherein, the limit ring is provided with a first slide groove extending along the circumferential direction of the limit ring; the first slider moves along the first slide groove; the first slider includes a limit hole; the limit hole is for the limit column to be inserted; the limit ring includes an insertion groove.

[0007] Push the push ring, the movement of the push ring drives the limit column to move, so that the first slider is free from the restriction of the limit column, and then rotate the protective frame to move the first slider to the insertion slot position, and then the protective frame can be taken out, so it is more convenient to disassemble the protective frame.

[0008] Furthermore, the limiting ring includes a clearance groove; the clearance groove is for the connecting column to pass through, and a gap is set between the connecting column and the clearance groove.

[0009] Furthermore, the insertion groove is communicated with the first sliding groove.

[0010] Furthermore, the limiting ring includes a guide hole; the limiting column is partially located in the guide hole and moves along the axial direction of the guide hole.

[0011] Furthermore, the fan housing is provided with a guide groove extending axially along the fan housing; and the push ring moves along the guide groove.

[0012] Furthermore, the protective frame is located at one end of the connecting column; and the first sliding block is located at the other end of the connecting column.

[0013] Furthermore, the connecting column and the first sliding block are provided in plurality and are distributed equidistantly along the circumferential direction of the protective frame.

[0014] Furthermore, a plurality of the limiting posts are provided; the plurality of limiting posts are equidistantly distributed along the circumferential direction of the limiting ring.

[0015] Furthermore, the limiting column is located at one end of the first sliding block.

[0016] The beneficial effect of the present application is that it provides an axial flow fan that is particularly easy to disassemble and has high installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0019] In the attached picture:

[0020] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0021] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the fan blade and the fixing frame;

[0022] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the protection frame;

[0023] Figure 4 yes Figure 3 The enlarged view of part A mainly shows the structure of the limit column;

[0024] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first sliding block and the limiting hole;

[0025] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the insertion slot;

[0026] Figure 7 yes Figure 6 The enlarged view of part B mainly shows the structure of the air avoidance groove and the first chute;

[0027] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the limiting ring;

[0028] Fig. 9 yes Figure 8 The enlarged view of part C mainly shows the structure of the guide hole.

[0029] Reference numerals:

[0030] 100. Axial flow fan with high installation accuracy; 101. Fan housing; 101a. Guide groove; 102. Fixing frame; 103. Motor; 104. Connecting plate; 105. Fan blade; 106. Limiting ring; 106a. Guide hole; 106b. First slide groove;

[0031] 106c, insertion slot; 106d, avoidance slot; 107, connecting column; 108, first sliding block; 108a, limiting hole; 109, limiting column; 110, push ring; 112, first spring; 113, protective frame. DETAILED DESCRIPTION

[0032] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0033] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0034] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0035] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0036] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0037] Reference Figure 1-9 , an axial flow fan 100 with high installation accuracy, comprising: a fan housing 101, a fixing frame 102, a motor 103, a connecting plate 104, a fan blade 105, a protective frame 113, a limiting ring 106, and a fixing component for fixing the protective frame 113 to the fan housing 101. Two protective frames 113 are provided, respectively located at both ends of the fan housing 101. The limiting ring 106 is fixedly connected to the fan housing 101. The fixing frame 102 is located in the fan housing 101 and is fixedly connected to the fan housing 101. The motor 103 is fixedly connected to the fixing frame 102. The connecting plate 104 is fixedly connected to the output shaft of the motor 103. The fan blade 105 is fixedly connected to the connecting plate 104. A plurality of fan blades 105 are provided, which are equidistantly distributed along the circumferential direction of the connecting plate 104. The motor 103 drives the connecting plate 104 to rotate, and the rotation of the connecting plate 104 drives the fan blade 105 to rotate, thereby ventilating and cooling the equipment.

[0038] The fixing assembly is used to fix the protection frame 113 to the fan housing 101, and includes: a connecting column 107, a first slider 108, a limiting column 109, a push ring 110, and a first spring 112. The connecting column 107 is fixedly connected to the protection frame 113. The first slider 108 is fixedly connected to the connecting column 107. The limiting column 109 is horizontally slidably connected to the limiting ring 106. Specifically, the limiting ring 106 includes a guide hole 106a, and the limiting column 109 is partially located in the guide hole 106a and moves along the axial direction of the guide hole 106a.

[0039] The push ring 110 is horizontally slidably connected to the fan housing 101. Specifically, the fan housing 101 is provided with a guide groove 101a extending along the axial direction of the fan housing 101, and the push ring 110 moves along the guide groove 101a. The first spring 112 is sleeved on the limiting column 109, and the two ends are fixedly connected to the push ring 110 and the limiting ring 106 respectively. Among them, the limiting ring 106 is provided with a first slide groove 106b extending along the circumferential direction of the limiting ring 106, and the first slider 108 moves along the first slide groove 106b. The first slider 108 includes a limiting hole 108a, and the limiting hole 108a is for the limiting column 109 to be inserted. The limiting ring 106 includes an insertion groove 106c, and the insertion groove 106c is connected to the first slide groove 106b. The limiting ring 106 includes an air avoidance groove 106d, and the air avoidance groove 106d is for the connecting column 107 to pass through, and a gap is set with the connecting column 107.

[0040] The protective frame 113 is located at one end of the connecting column 107, and the first slider 108 is located at the other end of the connecting column 107. There are multiple connecting columns 107 and first slider 108, which are equidistantly distributed along the circumferential direction of the protective frame 113. There are multiple limiting columns 109, which are equidistantly distributed along the circumferential direction of the limiting ring 106. The limiting column 109 is located at one end of the first slider 108. Push the push ring 110, and the push ring 110 moves to drive the limiting column 109 to move, so that the limiting column 109 is separated from the limiting hole 108a, and then the protective frame 113 is rotated, and the movement of the protective frame 113 drives the connecting column 107 to move, and the movement of the connecting column 107 drives the first slider 108 to move, and the first slider 108 is moved to the insertion slot 106c position, and the protective frame 113 can be taken out, which is convenient for the disassembly of the protective frame 113 and more convenient for cleaning the inside of the fan housing 101.

[0041] Working process: push the push ring 110, the push ring 110 moves to drive the limiting column 109 to move, so that the limiting column 109 is separated from the limiting hole 108a, and then rotate the protective frame 113, the protective frame 113 moves to drive the connecting column 107 to move, and the connecting column 107 moves to drive the first slider 108 to move, and move the first slider 108 to the insertion groove 106c position, and then the protective frame 113 can be taken out, which is convenient for disassembly of the protective frame 113 and more convenient for cleaning the inside of the fan casing 101. After cleaning, push the push ring 110, the push ring 110 moves to drive the limiting column 109 to move, and then insert the first slider 108 into the first slide groove 106b, and then rotate the protective frame 113, the protective frame 113 moves to drive the connecting column 107 to move, the connecting column 107 moves to drive the first slider 108 to move, the first slider 108 moves to the position of the limiting column 109, and then release the push ring 110. Under the action of the first spring 112, the push ring 110 will be reset, and the push ring 110 moves to drive the limiting column 109 to move, so that the limiting column 109 is inserted into the limiting hole 108a, and the installation of the protective frame 113 is completed. The installation is more convenient, and the circumferential limitation of the first slide groove 106b and the axial limitation of the limiting column 109 increase the installation accuracy of the protective frame 113 compared with the existing screw fixation.

[0042] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. An axial flow fan with high installation precision, comprising: A fan housing and a protective frame; two protective frames are provided, each located at two ends of the fan housing; Features: The axial flow fan with high installation precision also includes: A limiting ring, fixedly connected to the fan housing; A connecting column, fixedly connected to the protective frame; A first sliding block, fixedly connected to the connecting column; A limit column, horizontally slidably connected with the limit ring; A push ring is horizontally slidably connected to the fan housing; The first spring is sleeved on the limiting column, and its two ends are fixedly connected to the push ring and the limiting ring respectively; Among them, the limiting ring is provided with a first slide groove extending along the circumferential direction of the limiting ring; the first slider moves along the first slide groove; the first slider includes a limiting hole; the limiting hole is for the limiting column to be inserted; the limiting ring includes an insertion groove.

2. The axial flow fan with high installation accuracy according to claim 1, characterized in that: The limiting ring includes a clearance groove; The air avoidance groove is for the connection column to pass through, and a gap is set between the connection column and the air avoidance groove.

3. The axial flow fan with high installation accuracy according to claim 2, characterized in that: The insertion groove is communicated with the first sliding groove.

4. The axial flow fan with high installation accuracy according to claim 3, characterized in that: The limiting ring includes a guide hole; The limiting column part is located in the guide hole and moves along the axial direction of the guide hole.

5. The axial flow fan with high installation accuracy according to claim 4, characterized in that: The fan housing is provided with a guide groove extending along the axial direction of the fan housing; The push ring moves along the guide groove.

6. The axial flow fan with high installation accuracy according to claim 5, characterized in that: The protective frame is located at one end of the connecting column; The first sliding block is located at the other end of the connecting column.

7. The axial flow fan with high installation accuracy according to claim 6, characterized in that: The connecting column and the first sliding block are both provided in plurality and are distributed equidistantly along the circumferential direction of the protective frame.

8. The axial flow fan with high installation accuracy according to claim 7, characterized in that: There are multiple limit columns; The plurality of limiting posts are distributed equidistantly along the circumferential direction of the limiting ring.

9. The axial flow fan with high installation accuracy according to claim 8, characterized in that: The limiting column is located at one end of the first sliding block.

Images