Exhaust fan adjusting structure

Abstract

This utility model relates to a structure for adjusting the orientation and angle of an exhaust fan, and more particularly to an adjustment structure for an exhaust fan, including a base. A connecting column is rotatably connected to the lower surface of the inner wall of the base. A slot a is provided on the right side of the connecting column. An orientation adjustment component is provided on the outer surface of the connecting column. The top of the connecting column is slidably connected to the lower surface of the inner wall of the cap. A servo motor a drives a worm gear a to rotate, which in turn drives a worm wheel a and the connecting column to rotate. The rotation of the connecting column causes the cap, the steering plate, the connecting frame, the mounting plate, and the exhaust fan body to adjust their orientation. A servo motor b drives a worm gear b and a worm wheel b to rotate, which in turn drives the mounting plate and the exhaust fan body to adjust their angle. This invention solves the problem that existing devices cannot flexibly adjust the orientation of the exhaust fan outlet according to actual usage needs, making it inconvenient to adjust the exhaust fan outlet during use.

Description

Technical Field

[0001] This utility model relates to an exhaust fan adjustment structure, specifically an exhaust fan orientation and angle adjustment structure. Background Technology

[0002] Exhaust fans achieve ventilation by drawing air from indoors or outdoors. The movement of air around the human body promotes the evaporation of bodily fluids, and exhaust fans provide natural cooling, thus preventing discomfort caused by stuffiness, odors, dust, fumes, and other poor ventilation.

[0003] Most existing exhaust fans are installed by welding to a support frame, which is then installed at the desired location using expansion bolts. This installation method requires disassembling the support frame, adjusting it to the appropriate direction, and then reinstalling it when the direction of the exhaust fan outlet needs to be adjusted. This makes it impossible to flexibly adjust the direction of the exhaust fan outlet according to actual usage needs, and it is inconvenient to adjust the exhaust fan outlet during use. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an exhaust fan adjustment structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an exhaust fan adjustment structure, including a base, a connecting column rotatably connected to the lower surface of the inner wall of the base, a slot a on the right side of the connecting column, an orientation adjustment component on the outer surface of the connecting column, a top end of the connecting column slidably connected to the lower surface of the inner wall of a cap, an upper surface of the cap fixedly connected to the lower surface of a steering plate, a connecting frame fixedly connected to the upper surface of the steering plate, the front and back sides of the inner wall of the connecting frame rotatably connected to the front and back sides of a mounting plate, an exhaust fan body mounted on the upper surface of the mounting plate, a power box mounted on the front side of the connecting frame, and an angle adjustment component disposed inside the power box.

[0006] Preferably, the orientation adjustment assembly includes a worm gear a mounted on the outer surface of the connecting column, the outer surface of the worm gear a meshing with the outer surface of the worm a, the left end of the worm a being fixedly connected to the output shaft of the servo motor a, and the servo motor a being mounted on the lower surface of the inner wall of the base.

[0007] Preferably, a slot b is provided on the right side of the cap, the position of the slot b corresponds to the position of the slot a, and the inner walls of the slot b and the slot a are fitted with pins.

[0008] Preferably, the angle adjustment assembly includes a worm gear b attached to the lower surface of the inner wall of the power box, the top end of the worm gear b being fixedly connected to the output shaft of a servo motor b, and the servo motor b being mounted on the upper surface of the power box.

[0009] Preferably, the outer surface of the worm gear b meshes with the outer surface of the worm wheel b, and the back side of the worm wheel b is fixedly connected to the front side of the mounting plate through a bearing and a shaft installed on the back side of the inner wall of the power box.

[0010] Preferably, the inner wall of the base is threaded with a threaded sleeve, and a sealing plate is fixed to the upper surface of the threaded sleeve.

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

[0012] This invention uses a servo motor a to drive a worm gear a to rotate, which in turn drives a worm wheel a and a connecting column to rotate. The rotation of the connecting column then adjusts the orientation of the cap, steering plate, connecting frame, mounting plate, and exhaust fan body. A servo motor b drives a worm gear b and a worm wheel b to rotate, which in turn adjusts the angle of the mounting plate and exhaust fan body. This solves the problem that existing devices cannot flexibly adjust the orientation of the exhaust fan outlet according to actual usage needs, making it inconvenient to adjust the exhaust fan outlet during use.

[0013] This utility model allows the cap to be separated from the connecting column by pulling the pin out of slots a and b, facilitating the replacement and maintenance of the exhaust fan body. Reversing the threaded sleeve separates the sealing plate from the base, facilitating the maintenance of the orientation adjustment components inside the base. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the base in this utility model;

[0018] In the diagram: 1. Base; 2. Connecting column;

[0019] Orientation adjustment components: 31. Worm gear a; 32. Worm a; 33. Servo motor a;

[0020] 4. Slot a; 5. Threaded sleeve; 6. Sealing plate; 7. Cap; 8. Slot b; 9. Pin; 10. Turning plate; 11. Connecting bracket; 12. Mounting plate; 13. Exhaust fan body;

[0021] Angle adjustment components: 141, servo motor b; 142, worm gear b; 143, worm wheel b; 15, power box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-3 This utility model provides the following technical solution: an exhaust fan adjustment structure, including a base 1, a connecting column 2 rotatably connected to the lower surface of the inner wall of the base 1, a slot a4 opened on the right side of the connecting column 2, an orientation adjustment component provided on the outer surface of the connecting column 2, the top end of the connecting column 2 slidably connected to the lower surface of the inner wall of the cap 7, the upper surface of the cap 7 fixedly connected to the lower surface of the steering plate 10, a connecting frame 11 fixedly connected to the upper surface of the steering plate 10, the front and back sides of the inner wall of the connecting frame 11 rotatably connected to the front and back sides of the mounting plate 12 respectively, an exhaust fan body 13 mounted on the upper surface of the mounting plate 12, a power box 15 mounted on the front side of the connecting frame 11, and an angle adjustment component provided inside the power box 15.

[0025] Specifically, the orientation adjustment component includes a worm gear a31 mounted on the outer surface of the connecting column 2. The outer surface of the worm gear a31 meshes with the outer surface of the worm a32. The left end of the worm a32 is fixedly connected to the output shaft of the servo motor a33. The servo motor a33 is mounted on the lower surface of the inner wall of the base 1.

[0026] Servo motor a33 drives worm gear a32 to rotate, worm gear a32 rotates worm wheel a31 and connecting column 2 rotate, and connecting column 2 rotates cap 7, steering plate 10, connecting frame 11, mounting plate 12 and exhaust fan body 13 to adjust their orientation.

[0027] Specifically, a slot b8 is provided on the right side of the cap 7, the position of the slot b8 corresponds to the position of the slot a4, and a pin 9 is inserted into the inner wall of the slot b8 and the slot a4;

[0028] Pull the pin 9 out of slots a4 and b8 to separate the cap 7 from the connecting post 2, making it easier to replace and repair the exhaust fan body 13.

[0029] Specifically, the angle adjustment component includes a worm gear b142 attached to the lower surface of the inner wall of the power box 15. The top end of the worm gear b142 is fixedly connected to the output shaft of the servo motor b141, and the servo motor b141 is mounted on the upper surface of the power box 15.

[0030] Specifically, by setting the outer surface of the worm gear b142 to mesh with the outer surface of the worm wheel b143, the back of the worm wheel b143 is fixedly connected to the front of the mounting plate 12 through the bearing and shaft installed on the back of the inner wall of the power box 15.

[0031] Servo motor b141 drives worm gear b142 and worm wheel b143 to rotate, and the rotation of worm wheel b143 drives the mounting plate 12 and the exhaust fan body 13 to adjust their angles.

[0032] Specifically, a threaded sleeve 5 is threadedly connected to the inner wall of the base 1, and a sealing plate 6 is fixedly connected to the upper surface of the threaded sleeve 5.

[0033] The reverse threaded sleeve 5 separates the sealing plate 6 from the base 1, making it easier to inspect and maintain the orientation adjustment components inside the base 1.

[0034] Working principle and usage process of this utility model:

[0035] This utility model, when in use:

[0036] Servo motor a33 drives worm gear a32 to rotate, which in turn drives worm wheel a31 and connecting column 2 to rotate. The rotation of connecting column 2 causes the cap 7, steering plate 10, connecting bracket 11, mounting plate 12, and exhaust fan body 13 to adjust their orientation. Servo motor b141 drives worm gear b142 and worm wheel b143 to rotate, which in turn drives the mounting plate 12 and exhaust fan body 13 to adjust their angle. Pulling pin 9 out of slot a4 and slot b8 separates cap 7 from connecting column 2, facilitating replacement and maintenance of exhaust fan body 13. Reversing threaded sleeve 5 separates sealing plate 6 from base 1, facilitating maintenance of orientation adjustment components inside base 1.

[0037] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ventilation fan adjustment structure, comprising a base (1), characterized in that: A connecting column (2) is rotatably connected to the lower surface of the inner wall of the base (1). A slot a (4) is provided on the right side of the connecting column (2). An orientation adjustment component is provided on the outer surface of the connecting column (2). The top of the connecting column (2) is slidably connected to the lower surface of the inner wall of the cap (7). The upper surface of the cap (7) is fixedly connected to the lower surface of the steering plate (10). A connecting frame (11) is fixedly connected to the upper surface of the steering plate (10). The front and back sides of the inner wall of the connecting frame (11) are rotatably connected to the front and back sides of the mounting plate (12), respectively. An exhaust fan body (13) is installed on the upper surface of the mounting plate (12). A power box (15) is installed on the front side of the connecting frame (11). An angle adjustment component is provided inside the power box (15).

2. The exhaust fan adjustment structure according to claim 1, characterized in that: The orientation adjustment assembly includes a worm gear a (31) mounted on the outer surface of the connecting column (2), the outer surface of the worm gear a (31) meshing with the outer surface of the worm a (32), the left end of the worm a (32) being fixedly connected to the output shaft of the servo motor a (33), and the servo motor a (33) being mounted on the lower surface of the inner wall of the base (1).

3. The exhaust fan adjustment structure according to claim 1, characterized in that: The right side of the cap (7) is provided with a slot b (8), the position of the slot b (8) corresponds to the position of the slot a (4), and the inner walls of the slot b (8) and the slot a (4) are connected with pins (9).

4. The exhaust fan adjustment structure according to claim 1, characterized in that: The angle adjustment assembly includes a worm gear b (142) attached to the lower surface of the inner wall of the power box (15). The top end of the worm gear b (142) is fixedly connected to the output shaft of a servo motor b (141), which is mounted on the upper surface of the power box (15).

5. The exhaust fan adjustment structure according to claim 4, characterized in that: The outer surface of the worm gear b (142) meshes with the outer surface of the worm wheel b (143), and the back of the worm wheel b (143) is fixedly connected to the front of the mounting plate (12) through the bearing and shaft installed on the back of the inner wall of the power box (15).

6. The exhaust fan adjustment structure according to claim 1, characterized in that: The inner wall of the base (1) is threaded with a threaded sleeve (5), and a sealing plate (6) is fixed to the upper surface of the threaded sleeve (5).

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