Axial flow fan

Abstract

The utility model provides an axial flow fan, and belongs to the field of fans. The axial flow fan solves the problem that an existing axial flow fan is inconvenient to repair and maintain. The axial flow fan comprises a fan body and an axial flow cylinder, a movable mechanism is arranged in the axial flow cylinder, a limiting step is arranged in the axial flow cylinder, the movable mechanism comprises a fixed part, a movable part and a guide structure, the longitudinal section of the fixed part and the longitudinal section of the movable part are each of a semicircular structure, and the fixed part and the movable part are matched to form a movable and detachable cylinder; the inner diameter of the cylinder is equal to the inner diameter of the axial flow cylinder, the fan body is fixedly installed on the moving part, the guiding structure comprises a plurality of guiding parts extending and protruding outwards and guiding grooves formed in the axial flow cylinder and the fixing part respectively, and silencing thin cotton used for noise reduction and silencing is inlaid in the inner side of the moving part and the inner side of the fixing part. A handle groove facilitating manual pulling and moving is formed in the inner side of the corresponding end of the moving piece. The utility model has the advantage of being convenient and quick to maintain and repair.

Description

Technical Field

[0001] The utility model belongs to the field of fans and relates to an axial flow fan. Background Art

[0002] An axial flow fan is a device that rotates an impeller to make gas flow parallel to the fan shaft. Axial flow fans are usually used in occasions where high flow rates and low pressure requirements are needed. Axial flow fans mainly consist of an impeller and a casing, with a simple structure but very high index requirements.

[0003] The existing axial flow fans have the following problems when in use: 1. The existing axial flow fans need to install the motor on the bracket inside the casing, making it necessary to install the motor in the narrow internal space of the casing, resulting in inconvenient installation; 2. If the motor fails during use, it is necessary to remove the motor inside the casing for repair, making the repair work very cumbersome. Summary of the Invention

[0004] The purpose of the utility model is to provide an axial flow fan that can be pulled out and is convenient for quick repair to solve the above problems for the existing problems in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: An axial flow fan includes a fan main body and an axial flow cylinder for installing the fan main body. It is characterized in that an activity mechanism for driving the movement of the fan main body is arranged inside the axial flow cylinder;

[0006] There is a limit step inside the axial flow cylinder for limiting and installing the activity mechanism;

[0007] The activity mechanism includes a fixed part fixed inside the axial flow cylinder, a moving part movably connected inside the axial flow cylinder, and a guiding structure for guiding and matching;

[0008] The longitudinal cross-sections of the fixed part and the moving part are both semicircular structures, and they cooperate to form a movable and detachable cylinder, and the inner diameter of the cylinder is equal to the inner diameter of the axial flow cylinder;

[0009] The fan main body is fixedly installed on the moving part;

[0010] The guiding structure includes several guiding parts extending outwards in a convex shape and guiding grooves respectively opened inside the axial flow cylinder and on the fixed part;

[0011] Sound-absorbing and noise-reducing sound-absorbing cotton is inlaid on the inner sides of the moving part and the fixed part;

[0012] A handle groove for facilitating manual pulling and moving is opened on the inner side of the corresponding end of the moving part.

[0013] In the above axial flow fan, several of the guide members and the moving plate are integrally formed structures. The guide members and the guide grooves are arranged in a concave-convex matching structure, and their cross-sections are all in an arc structure, which is convenient for guiding and moving.

[0014] In the above axial flow fan, there is also a connecting seat for fixedly installing the fan main body inside the moving member. The fan main body is connected to the inside of the moving member through the connecting seat, and in order to increase the connection stability, an integrally formed connection structure is adopted.

[0015] In the above axial flow fan, the fixing member and the inner side of the axial flow cylinder are integrally formed structures. The fan main body realizes pulling and moving through the cooperation of the moving plate, the guide member, the guide groove and the handle groove structure.

[0016] Compared with the prior art, the structure of this axial flow fan is simple. By using the cooperation of the movable mechanism structure, it realizes the ability to pull out the fan main body for maintenance and is convenient for quick installation. At the same time, there is a sound-absorbing thin cotton inside the moving member and the fixing member to achieve the purpose of noise reduction. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of this axial flow fan.

[0018] Figure 2 is a three-dimensional structural schematic diagram of this axial flow fan.

[0019] In the figure, 1, fan main body; 2, axial flow cylinder; 3, fixing member; 4, moving member; 5, guide member; 6, guide groove; 7, handle groove; 8, connecting seat. Detailed Embodiments

[0020] The following are specific embodiments of the present invention in combination with the drawings, and the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0021] Such as Figure 1 、 Figure 2As shown in the figure, this axial flow fan includes a fan main body 1 and an axial flow cylinder 2 for installing the fan main body 1. An activity mechanism for driving the movement of the fan main body 1 is provided inside the axial flow cylinder 2. There is a limit step inside the axial flow cylinder 2 for the limit installation of the activity mechanism. The activity mechanism includes a fixed part 3 fixed inside the axial flow cylinder 2, a moving part 4 movably connected inside the axial flow cylinder 2, and a guiding structure for guiding and cooperating. The longitudinal cross-sections of the fixed part 3 and the moving part 4 are both semicircular structures, and they cooperate to form a removably movable cylinder, and the inner diameter of this cylinder is equal to the inner diameter of the axial flow cylinder 2. The fan main body 1 is fixedly installed on the moving part 4. The guiding structure includes several guiding parts 5 protruding outward and guiding grooves 6 respectively opened inside the axial flow cylinder 2 and on the fixed part 3. Sound-absorbing and noise-reducing soundproof cotton is inlaid on the inner sides of the moving part 4 and the fixed part 3. A handle groove 7 for facilitating manual pulling and moving is opened on the inner side of the corresponding end of the moving part 4.

[0022] The above structure is simple. By using the cooperation of the activity mechanism structure, it realizes the function of being able to pull out the fan main body 1 for maintenance and is convenient for quick installation. At the same time, there is soundproof cotton on the inner sides of the moving part 4 and the fixed part 3 to achieve the purpose of noise reduction and silencing.

[0023] Further elaborating, in order to facilitate the pulling and moving of the moving part 4 and drive the fan main body 1 to move out of the axial flow cylinder 2 for quick maintenance, several guiding parts 5 and the moving plate are integrally formed. The guiding parts 5 and the guiding grooves 6 are in an uneven matching structure, and their cross-sections are both arc-shaped structures, which is convenient for guiding and moving.

[0024] Further elaborating, in order to improve the installation connection stability of the fan main body 1 on the moving part 4, there is a connection seat 8 for fixedly installing the fan main body 1 inside the moving part 4. The fan main body 1 is connected to the inside of the moving part 4 through the connection seat 8, and in order to increase the connection stability, an integrally formed connection structure form is adopted.

[0025] Further elaborating, in order to improve the structural stability of the overall axial flow fan and facilitate quick repair and maintenance, the fixed part 3 and the inner side of the axial flow cylinder 2 are integrally formed. The fan main body 1 realizes pulling and moving through the cooperation of the moving plate, guiding parts 5, guiding grooves 6 and handle grooves 7.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0027] Although this text uses certain terms more frequently, it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present utility model; any interpretation of them as an additional limitation is contrary to the spirit of the present utility model.

Claims

1. An axial flow fan, comprising a fan main body (1) and an axial flow cylinder (2) for installing the fan main body (1) therein, characterized in that, An actuating mechanism for driving the movement of the fan main body (1) is arranged inside the axial flow cylinder (2); A limiting step for limiting the installation of the actuating mechanism is provided inside the axial flow cylinder (2); The actuating mechanism includes a fixing member (3) fixed inside the axial flow cylinder (2), a moving member (4) movably connected inside the axial flow cylinder (2), and a guiding structure with guiding cooperation; The longitudinal cross-sections of the fixing member (3) and the moving member (4) are both arranged in a semi-circular structure, and a movable and detachable cylinder is formed by cooperation, and the inner diameter of the cylinder is equal to the inner diameter of the axial flow cylinder (2); The fan main body (1) is fixedly installed on the moving member (4); The guiding structure includes a plurality of guiding members (5) protruding outward and guiding grooves (6) respectively formed inside the axial flow cylinder (2) and on the fixing member (3); Sound-absorbing and noise-reducing soundproof cotton is inlaid on the inner sides of the moving member (4) and the fixing member (3); A handle groove (7) for facilitating manual pulling and moving is formed inside the corresponding end of the moving member (4).

2. An axial flow fan according to claim 1, characterized in that, A plurality of the guiding members (5) are integrally formed with the moving plate, and the guiding members (5) and the guiding grooves (6) are arranged in a concave-convex matching structure, and the cross-sections are both arranged in an arc structure for facilitating guiding movement.

3. The axial flow fan according to claim 1, characterized in that, A connecting seat (8) for fixedly installing the fan main body (1) is further arranged inside the moving member (4), and the fan main body (1) is connected to the inside of the moving member (4) through the connecting seat (8), and an integrally formed connection structure form is adopted to increase the connection stability.

4. An axial flow fan according to claim 1, characterized in that, The fixing member (3) and the inner side of the axial flow cylinder (2) are of an integrally formed structure, and the fan main body (1) realizes pulling and moving through the cooperation of the moving plate, the guiding members (5), the guiding grooves (6) and the handle groove (7).

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