Axial flow fan impeller adjusting mechanism

Abstract

The utility model relates to the technical field of impellers, in particular to an axial flow fan impeller adjusting mechanism which comprises a fan cover, the bottom of the fan cover is fixedly connected with a supporting plate, a motor is installed in the fan cover, the output end of the motor is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a connecting cover, and the connecting cover is fixedly connected with a rotating shaft. A clamping plate is fixedly connected to the outer side of the connecting cover, an impeller plate is movably connected to the interior of the clamping plate, a positioning hole is formed in the impeller plate, a movable pipe is fixedly connected to the outer side of the clamping plate, a fixing rod is movably connected to the interior of the movable pipe, and a pulling cover is fixedly connected to the outer side of the fixing rod; the fan cover is simple in structure and convenient to use, the length of the impeller can be adjusted, and the motor and the impeller can be moved out of the fan cover, so that the fan cover is convenient to maintain.

Description

Technical Field

[0001] The utility model relates to an axial flow fan impeller regulating mechanism, belonging to the technical field of impellers. Background Art

[0002] Axial flow fans have a wide range of uses. They are fans that operate in the same direction as the axis of the fan blades. For example, electric fans and air conditioner outdoor fans are fans that operate in axial flow mode. They are called axial flow because the gas flows parallel to the fan axis. Axial flow fans are usually used in situations where the flow requirements are higher and the pressure requirements are lower. Axial flow fans are fixed in position and move the air.

[0003] There are still some problems in the use of an existing axial flow fan impeller. The axial flow fan is mainly composed of a fan impeller and a casing. The structure is simple but the data requirements are very high. However, the existing axial flow fan impeller structure does not have the advantage of adjustment, which makes the fan impeller unable to be suitable for axial flow fans of different sizes, limiting the use range of the fan impeller. At the same time, the impeller is fixedly connected to the inside of the fan cover through the motor and the rotating shaft. When the motor or impeller needs to be repaired, it is extremely inconvenient to repair because it is inside the fan cover. Utility Model Content

[0004] The purpose of the utility model is to provide an axial flow fan impeller adjustment mechanism. The utility model has a simple structure and is easy to use. It can adjust the length of the impeller and can move the motor and the impeller out of the interior of the fan cover to facilitate maintenance thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An axial flow fan impeller adjustment mechanism comprises a fan cover, a support plate is fixedly connected to the bottom of the fan cover, a motor is installed inside the fan cover, a rotating shaft is fixedly connected to the output end of the motor, a connecting cover is fixedly connected to the outside of the rotating shaft, a clamping plate is fixedly connected to the outside of the connecting cover, an impeller plate is movably connected to the inside of the clamping plate, a positioning hole is provided inside the impeller plate, a movable tube is fixedly connected to the outside of the clamping plate, a fixed rod is movably connected to the inside of the movable tube, a pulling cover is fixedly connected to the outside of the fixed rod, and a compression spring is fixedly connected to the inside of the pulling cover.

[0007] Furthermore, a slide plate is fixedly connected to the outer side of the motor, a slide groove is opened inside the fan cover, a limiting rod is fixedly connected to the bottom of the slide plate, a U-shaped cover is fixedly connected to the outer side of the fan cover, an electric telescopic rod is fixedly connected to the outer side of the U-shaped cover, and a pushing rod is fixedly connected to the outer side of the electric telescopic rod.

[0008] Furthermore, the rotating shaft and the connecting cover are rotatably connected inside the fan cover, and the clamping plates are evenly distributed on the outside of the connecting cover.

[0009] Furthermore, the number of the impeller plate and the clamping plate is the same, and the positioning holes are evenly distributed inside the impeller plate.

[0010] Furthermore, one end of the fixing rod is located inside the positioning hole, and one end of the compression spring away from the pulling cover is fixedly connected to the outside of the movable tube.

[0011] Furthermore, the slide plates are symmetrically distributed on the outside of the motor, and the bottom of the limit rod is slidably engaged in the inside of the slide groove.

[0012] Furthermore, the push rod crosses the interior of the U-shaped cover, and one end of the push rod away from the electric telescopic rod is fixedly connected to the outside of the motor.

[0013] The beneficial effects of the utility model are:

[0014] (i) The utility model provides a fan cover, and a motor is installed inside the fan cover. The motor is started to rotate the rotating shaft, so that the rotating shaft drives the connecting cover to rotate. Since a clamping plate and an impeller plate are fixedly connected to the outer side of the connecting cover, the rotating shaft can drive the impeller plate to rotate. When the position of the impeller plate needs to be adjusted, the cover is first pulled to drive the fixing rod to move inside the movable tube, so that the fixing rod is moved out of the positioning hole inside the impeller plate. At this time, the impeller plate can be moved inside the clamping plate. When it moves to the required length, the cover is released, so that the cover drives the fixing rod to enter the positioning hole inside the impeller plate again under the action of the compression spring, so that the impeller plate is fixed again, thereby achieving the effect of being able to adjust the impeller plate.

[0015] (ii) The utility model provides a fan cover, and the motor and the impeller plate are installed inside the fan cover. When the motor or the impeller plate needs to be moved out of the fan cover, the electric telescopic rod on the outside of the U-shaped cover is started through an external controller, so that the electric telescopic rod drives the pushing rod to move. The movement of the pushing rod causes the motor to move inside the fan cover under the action of the slide plate, thereby moving the motor or the impeller plate out of the fan cover. Since a limit rod is fixedly connected to the outside of the slide plate and the limit rod is slidably engaged in the inside of the slide groove, the motor can maintain stability when moving inside the fan cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a structural schematic diagram of an axial flow fan impeller adjustment mechanism of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the back side of an axial flow fan impeller adjustment mechanism of the utility model;

[0019] Figure 3 This is a structural schematic diagram of an axial flow fan impeller adjustment mechanism motor and the outer side of the impeller plate of the utility model;

[0020] Figure 4 The utility model is an axial flow fan impeller adjustment mechanism Figure 3 A magnified view of the structure at center A;

[0021] Figure 5 The utility model is an axial flow fan impeller adjustment mechanism Figure 2 A magnified view of the structure at B in the middle;

[0022] Numbers in the figure: 1. Fan cover; 2. Support plate; 3. Motor; 4. Rotating shaft; 5. Connecting cover; 6. Snap-in plate; 7. Impeller plate; 8. Positioning hole; 9. Movable tube; 10. Fixing rod; 11. Pull cover; 12. Compression spring; 13. Slide plate; 14. Slide groove; 15. Limit rod; 16. U-shaped cover; 17. Electric telescopic rod; 18. Push rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] An axial flow fan impeller adjustment mechanism comprises a fan cover 1, a support plate 2 is fixedly connected to the bottom of the fan cover 1, a motor 3 is installed inside the fan cover 1, a rotating shaft 4 is fixedly connected to the output end of the motor 3, a connecting cover 5 is fixedly connected to the outer side of the rotating shaft 4, a clamping plate 6 is fixedly connected to the outer side of the connecting cover 5, an impeller plate 7 is movably connected to the inside of the clamping plate 6, a positioning hole 8 is provided inside the impeller plate 7, a movable tube 9 is fixedly connected to the outer side of the clamping plate 6, a fixed rod 10 is movably connected to the inside of the movable tube 9, a pulling cover 11 is fixedly connected to the outer side of the fixed rod 10, and a compression spring 12 is fixedly connected to the inner side of the pulling cover 11.

[0026] Specifically, Figure 1 As shown, the rotating shaft 4 and the connecting cover 5 are rotatably connected to the inside of the fan cover 1, the clamping plates 6 are evenly distributed on the outside of the connecting cover 5, the number of impeller plates 7 and the clamping plates 6 is the same, the positioning holes 8 are evenly distributed inside the impeller plates 7, one end of the fixing rod 10 is located inside the positioning hole 8, and the end of the compression spring 12 away from the pulling cover 11 is fixedly connected to the outside of the movable tube 9.

[0027] In the present embodiment: a fan cover 1 is provided, and a motor 3 is installed inside the fan cover 1. By starting the motor 3, the rotating shaft 4 is rotated, so that the rotating shaft 4 drives the connecting cover 5 to rotate. Since the clamping plate 6 and the impeller plate 7 are fixedly connected to the outside of the connecting cover 5, the rotating shaft 4 can drive the impeller plate 7 to rotate. When the position of the impeller plate 7 needs to be adjusted, the fixing rod 10 is first driven to move inside the movable tube 9 by pulling the cover 11, so that the fixing rod 10 is moved out of the positioning hole 8 inside the impeller plate 7. At this time, the impeller plate 7 can be moved inside the clamping plate 6. When it moves to the required length, the pulling cover 11 is released, so that the pulling cover 11 drives the fixing rod 10 to enter the positioning hole 8 inside the impeller plate 7 again under the action of the compression spring 12, thereby fixing the impeller plate 7 again, thereby achieving the effect of being able to adjust the impeller plate 7.

[0028] Example 2 Please refer to Figure 1 , Figure 2 and Figure 4 The difference between this embodiment and embodiment 1 is that a slide plate 13 is fixedly connected to the outer side of the motor 3, a slide groove 14 is provided inside the fan cover 1, a limit rod 15 is fixedly connected to the bottom of the slide plate 13, a U-shaped cover 16 is fixedly connected to the outer side of the fan cover 1, an electric telescopic rod 17 is fixedly connected to the outer side of the U-shaped cover 16, and a push rod 18 is fixedly connected to the outer side of the electric telescopic rod 17.

[0029] Specifically, Figure 1-4 As shown, the slide plate 13 is symmetrically distributed on the outside of the motor 3, the bottom of the limit rod 15 is slidably engaged in the inside of the slide groove 14, the push rod 18 crosses the inside of the U-shaped cover 16, and the end of the push rod 18 away from the electric telescopic rod 17 is fixedly connected to the outside of the motor 3.

[0030] In the present embodiment: a fan cover 1 is provided, and the motor 3 and the impeller plate 7 are installed inside the fan cover 1. When the motor 3 or the impeller plate 7 needs to be moved out of the fan cover 1, the electric telescopic rod 17 on the outside of the U-shaped cover 16 is started by an external controller, so that the electric telescopic rod 17 drives the pushing rod 18 to move. Through the movement of the pushing rod 18, the motor 3 is moved inside the fan cover 1 under the action of the slide plate 13, and then the motor 3 or the impeller plate 7 is moved out of the fan cover 1. Since the limiting rod 15 is fixedly connected to the outside of the slide plate 13, and the limiting rod 15 is slidably engaged in the inside of the slide groove 14, the motor 3 can maintain stability when moving inside the fan cover 1.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An axial flow fan impeller adjustment mechanism, comprising a fan cover (1), characterized in that: The bottom of the fan cover (1) is fixedly connected to a support plate (2), a motor (3) is installed inside the fan cover (1), an output end of the motor (3) is fixedly connected to a rotating shaft (4), an outer side of the rotating shaft (4) is fixedly connected to a connecting cover (5), an outer side of the connecting cover (5) is fixedly connected to a clamping plate (6), an inner side of the clamping plate (6) is movably connected to an impeller plate (7), a positioning hole (8) is provided inside the impeller plate (7), an outer side of the clamping plate (6) is fixedly connected to a movable tube (9), an inner side of the movable tube (9) is movably connected to a fixing rod (10), an outer side of the fixing rod (10) is fixedly connected to a pulling cover (11), and an inner side of the pulling cover (11) is fixedly connected to a compression spring (12).

2. The axial flow fan impeller adjustment mechanism according to claim 1, characterized in that: A slide plate (13) is fixedly connected to the outside of the motor (3), a slide groove (14) is provided inside the fan cover (1), a limit rod (15) is fixedly connected to the bottom of the slide plate (13), a U-shaped cover (16) is fixedly connected to the outside of the fan cover (1), an electric telescopic rod (17) is fixedly connected to the outside of the U-shaped cover (16), and a push rod (18) is fixedly connected to the outside of the electric telescopic rod (17).

3. The axial flow fan impeller adjustment mechanism according to claim 1, characterized in that: The rotating shaft (4) and the connecting cover (5) are rotatably connected inside the fan cover (1), and the clamping plates (6) are evenly distributed on the outside of the connecting cover (5).

4. The axial flow fan impeller adjustment mechanism according to claim 1, characterized in that: The number of the impeller plates (7) is the same as the number of the clamping plates (6), and the positioning holes (8) are evenly distributed inside the impeller plates (7).

5. The axial flow fan impeller adjustment mechanism according to claim 1, characterized in that: One end of the fixing rod (10) is located inside the positioning hole (8), and one end of the compression spring (12) away from the pulling cover (11) is fixedly connected to the outside of the movable tube (9).

6. The axial flow fan impeller adjustment mechanism according to claim 2, characterized in that: The slide plates (13) are symmetrically distributed on the outside of the motor (3), and the bottom of the limiting rod (15) is slidably engaged in the interior of the sliding groove (14).

7. The axial flow fan impeller adjustment mechanism according to claim 2, characterized in that: The push rod (18) crosses the interior of the U-shaped cover (16), and one end of the push rod (18) away from the electric telescopic rod (17) is fixedly connected to the outside of the motor (3).

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