A centrifugal fan air inlet guide device

Abstract

The utility model discloses a centrifugal fan air inlet guide device, including a base, a centrifugal fan body is fixedly connected to the left side of the upper surface of the base, a second servo motor is fixedly connected to the top of the inner cavity of the base, a rotating plate is fixedly connected to the output end of the second servo motor, columns are fixedly connected to the left and right sides of the upper surface of the rotating plate, a mounting plate is fixedly connected to the lower end of the front of the inner cavity of the column, a third servo motor is fixedly connected to the lower surface of the mounting plate, and the output end of the third servo motor passes through the upper surface of the mounting plate and is fixedly connected to a screw. The utility model achieves the purpose of high convenience through the arrangement of a fixed frame, a first servo motor, a lifting plate, a column, a second servo motor, a rotating plate, a movable column, a slider, a third servo motor, a screw and a mounting plate, and solves the problem that the existing centrifugal fan air inlet guide device is poor in convenience, resulting in the inability to quickly complete adjustment during use, which affects the practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to an air inlet guide device for a centrifugal fan. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine.

[0003] For example, a Chinese utility model provides "a centrifugal fan air inlet guide device", and its announcement number is: CN215214119U, which relates to the technical field of centrifugal fans. The centrifugal fan includes a volute group, and the volute group includes a volute body and an exhaust port arranged at the opening of the volute body. A first through hole is opened on one side wall of the volute body. The guide device includes an air intake mechanism arranged on one side of the volute body, and the air intake mechanism includes an air intake box arranged parallel to the volute body, an air inlet is opened on the top of the air intake box, and a second through hole is opened on the side wall of the air intake box close to the volute body. Through hole, a connecting piece is provided on the side wall of the air inlet box, and the connecting piece is evenly distributed on the outer side of the second through hole along the circumference of the second through hole, the connecting piece is used to connect the volute body and the air inlet box, and the first through hole is coaxially closed and connected with the second through hole; the rotating air inlet box is adjusted according to the need to adjust the angle of the air inlet, and after the adjustment is completed, the air inlet box is connected to the volute body through the connecting piece, and the first through hole is coaxially closed and connected with the second through hole. However, the existing centrifugal fan inlet guide device has poor convenience, which makes it impossible to quickly complete the adjustment when it is used, affecting its practicality. For this reason, we propose a centrifugal fan inlet guide device. Utility Model Content

[0004] The utility model aims to provide a centrifugal fan air inlet guide device, which has the advantage of high convenience and solves the problem that the existing centrifugal fan air inlet guide device has poor convenience, resulting in the inability to quickly complete adjustment during use, affecting the practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal fan air inlet guide device, comprising a base, a centrifugal fan body is fixedly connected to the left side of the upper surface of the base, a second servo motor is fixedly connected to the top of the inner cavity of the base, a rotating plate is fixedly connected to the output end of the second servo motor, columns are fixedly connected to the left and right sides of the upper surface of the rotating plate, a mounting plate is fixedly connected to the lower end of the front of the inner cavity of the column, a third servo motor is fixedly connected to the lower surface of the mounting plate, the output end of the third servo motor passes through the upper surface of the mounting plate and is fixedly connected to a screw, a slider is threadedly connected to the lower end of the outer surface of the screw, a movable column is fixedly connected to the upper surface of the slider, a lifting plate is fixedly connected to the top of the movable column, a fixed frame is fixedly connected to the upper surface of the lifting plate, a first servo motor is fixedly connected to the front of the fixed frame, an air inlet pipe is fixedly connected to the output end of the first servo motor, a connecting pipe is fixedly connected to the right side of the centrifugal fan body, and the right end of the connecting pipe contacts the left side of the air inlet pipe.

[0006] Preferably, a plurality of heat dissipation holes are provided at the lower end of the front side of the column, and a dustproof net is embedded in the inner surface of the heat dissipation holes.

[0007] Preferably, the upper ends of the left and right sides of the movable column are fixedly connected to second support frames, and the top ends of the second support frames are fixedly connected to the lower surface of the lifting plate.

[0008] Preferably, left and right sides of the column are both fixedly connected with a first support frame, and the bottom end of the first support frame is fixedly connected to the upper surface of the rotating plate.

[0009] Preferably, a plurality of auxiliary wheels are movably connected to the right side of the upper surface of the base, and the top ends of the auxiliary wheels are in contact with the lower surface of the rotating plate.

[0010] Preferably, support legs are fixedly connected to both left and right sides of the lower surface of the base, and anti-slip pads are provided at the bottom ends of the support legs.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model achieves the purpose of high convenience through the arrangement of a fixed frame, a first servo motor, a lifting plate, a column, a second servo motor, a rotating plate, a movable column, a slider, a third servo motor, a screw and a mounting plate, and solves the problem that the existing centrifugal fan air inlet guide device has poor convenience, resulting in the inability to quickly complete adjustment during use, thus affecting the practicality.

[0013] 2. The utility model can dissipate heat for the third servo motor by opening the heat dissipation holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is an enlarged structural diagram of point A of the utility model.

[0017] In the figure: 1. base; 2. centrifugal fan body; 3. fixed frame; 4. first servo motor; 5. lifting plate; 6. column; 7. heat dissipation hole; 8. auxiliary wheel; 9. support leg; 10. second servo motor; 11. connecting pipe; 12. air inlet pipe; 13. second support frame; 14. rotating plate; 15. movable column; 16. slider; 17. third servo motor; 18. screw; 19. first support frame; 20. mounting plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 A centrifugal fan air inlet guide device comprises a base 1, a centrifugal fan body 2 is fixedly connected to the left side of the upper surface of the base 1, a second servo motor 10 is fixedly connected to the top of the inner cavity of the base 1, a rotating plate 14 is fixedly connected to the output end of the second servo motor 10, a column 6 is fixedly connected to the left and right sides of the upper surface of the rotating plate 14, a mounting plate 20 is fixedly connected to the lower end of the inner cavity of the column 6, a third servo motor 17 is fixedly connected to the lower surface of the mounting plate 20, and the output end of the third servo motor 17 passes through the mounting plate 20 A screw rod 18 is fixedly connected to the upper surface, a slider 16 is threadedly connected to the lower end of the outer surface of the screw rod 18, a movable column 15 is fixedly connected to the upper surface of the slider 16, a lifting plate 5 is fixedly connected to the top of the movable column 15, a fixed frame 3 is fixedly connected to the upper surface of the lifting plate 5, a first servo motor 4 is fixedly connected to the front of the fixed frame 3, an air inlet pipe 12 is fixedly connected to the output end of the first servo motor 4, a connecting pipe 11 is fixedly connected to the right side of the centrifugal fan body 2, and the right end of the connecting pipe 11 is in contact with the left side of the air inlet pipe 12.

[0020] A plurality of heat dissipation holes 7 are provided at the lower end of the front side of the column 6 , and a dustproof net is embedded in the inner surface of the heat dissipation hole 7 .

[0021] The heat dissipation holes 7 can be used to dissipate heat for the third servo motor 17 , and the embedded dustproof net can prevent dust from entering the column 6 through the heat dissipation holes 7 .

[0022] The upper ends of the left and right sides of the movable column 15 are fixedly connected to the second support frame 13 , and the top end of the second support frame 13 is fixedly connected to the lower surface of the lifting plate 5 .

[0023] The second support frame 13 is provided to increase the stability of the lifting plate 5 .

[0024] The left and right sides of the upright column 6 are both fixedly connected with a first support frame 19 , and the bottom end of the first support frame 19 is fixedly connected to the upper surface of the rotating plate 14 .

[0025] The first support frame 19 is provided to increase the stability of the column 6 .

[0026] A plurality of auxiliary wheels 8 are movably connected to the right side of the upper surface of the base 1 , and the top ends of the auxiliary wheels 8 are in contact with the lower surface of the rotating plate 14 .

[0027] The auxiliary wheels 8 are provided to increase the stability of the rotating plate 14 during rotation.

[0028] Support legs 9 are fixedly connected to the left and right sides of the lower surface of the base 1 , and anti-slip pads are arranged at the bottom ends of the support legs 9 .

[0029] The support legs 9 are provided to increase the stability of the base 1 , and the anti-skid pads are provided to increase the anti-skid property of the support legs 9 .

[0030] When in use, the first servo motor 4 is started through the external controller, and the first servo motor 4 drives the air inlet duct 12 to rotate, so as to adjust the angle of the air inlet duct 12. The third servo motor 17 is started through the external controller, and the third servo motor 17 drives the screw 18 to rotate, and the screw 18 drives the slider 16 to slide up and down in the inner cavity of the column 6. The slider 16 drives the lifting plate 5 to slide up and down through the movable column 15, so as to adjust the height of the air inlet duct 12. The second servo motor 10 is started through the external controller, and the second servo motor 10 drives the rotating plate 14 to rotate, so as to adjust the angle of the air inlet duct 12.

[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. A centrifugal fan air inlet guide device, comprising a base (1), characterized in that: The left side of the upper surface of the base (1) is fixedly connected to a centrifugal fan body (2); the top of the inner cavity of the base (1) is fixedly connected to a second servo motor (10); the output end of the second servo motor (10) is fixedly connected to a rotating plate (14); the left and right sides of the upper surface of the rotating plate (14) are fixedly connected to columns (6); the lower end of the front of the inner cavity of the column (6) is fixedly connected to a mounting plate (20); the lower surface of the mounting plate (20) is fixedly connected to a third servo motor (17); the output end of the third servo motor (17) passes through the upper surface of the mounting plate (20) and is fixedly connected to a screw rod (18) The lower end of the outer surface of the screw rod (18) is threadedly connected to a slider (16), the upper surface of the slider (16) is fixedly connected to a movable column (15), the top of the movable column (15) is fixedly connected to a lifting plate (5), the upper surface of the lifting plate (5) is fixedly connected to a fixed frame (3), the front of the fixed frame (3) is fixedly connected to a first servo motor (4), the output end of the first servo motor (4) is fixedly connected to an air inlet pipe (12), the right side of the centrifugal fan body (2) is fixedly connected to a connecting pipe (11), and the right end of the connecting pipe (11) is in contact with the left side of the air inlet pipe (12).

2. The centrifugal fan air inlet guide device according to claim 1, characterized in that: A plurality of heat dissipation holes (7) are provided at the lower end of the front side of the column (6), and a dustproof net is embedded in the inner surface of the heat dissipation hole (7).

3. The centrifugal fan air inlet guide device according to claim 1, characterized in that: The upper ends of the left and right sides of the movable column (15) are fixedly connected to a second support frame (13), and the top end of the second support frame (13) is fixedly connected to the lower surface of the lifting plate (5).

4. The centrifugal fan air inlet guide device according to claim 1, characterized in that: The left and right sides of the upright column (6) are both fixedly connected to a first support frame (19), and the bottom end of the first support frame (19) is fixedly connected to the upper surface of the rotating plate (14).

5. The centrifugal fan air inlet guide device according to claim 1, characterized in that: A plurality of auxiliary wheels (8) are movably connected to the right side of the upper surface of the base (1), and the top ends of the auxiliary wheels (8) are in contact with the lower surface of the rotating plate (14).

6. The centrifugal fan air inlet guide device according to claim 1, characterized in that: Support legs (9) are fixedly connected to the left and right sides of the lower surface of the base (1), and anti-slip pads are provided at the bottom ends of the support legs (9).

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