Desk fan with angle convenient to adjust

Abstract

The utility model relates to the field of fans, in particular to a desk fan with an angle convenient to adjust. The desk fan with the angle convenient to adjust comprises a base, a support is arranged on the top of the base, a shell is rotationally installed on the support, a first motor is arranged in the shell, fan blades are installed on an output shaft of the first motor in a transmission mode, an arc-shaped rack is arranged on the shell, a gear is rotationally installed on the base, and the arc-shaped rack is arranged on the gear. The gear is meshed with the arc-shaped rack, a second motor is rotationally installed on the base, and the second motor is fixedly connected with the gear. The desk fan with the angle convenient to adjust has the advantages of being convenient to adjust and simple in appearance.

Description

Technical Field

[0001] This utility model relates to the field of fans, and in particular to a table fan with an adjustable angle. Background Technology

[0002] The tilt angle adjustment of a table fan can be divided into manual and automatic. The structure of automatic tilt angle adjustment is very complicated, while the cost of manual tilt angle adjustment is lower.

[0003] For example, announcement number CN214221574U discloses a fan that allows manual adjustment of the head's pitch angle. When the head is being pitched, the oscillating motor, connected to the housing, moves along an arc-shaped trajectory in the vertical plane relative to the base structure.

[0004] However, the above technology requires a large arc-shaped support to support the fan front grille, and drive teeth are set on the arc-shaped support to realize the pitch adjustment of the fan, which is not simple in appearance.

[0005] To address this issue, a table fan with an easily adjustable angle is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a table fan with convenient angle adjustment, which has the advantages of convenient adjustment and simple appearance.

[0007] The technical solution adopted by this utility model to solve the problem is: a table fan with convenient angle adjustment, comprising: a base, a bracket on the top of the base, a housing rotatably mounted on the bracket, a first motor inside the housing, fan blades being driven and mounted on the output shaft of the first motor, an arc-shaped rack on the housing, a gear rotatably mounted on the base, the gear meshing with the arc-shaped rack, and a second motor rotatably mounted on the base, the second motor being fixedly connected to the gear.

[0008] As a further improvement to the above technical solution, a rotating shaft is fixedly installed on both sides of the housing. The rotating shaft is rotatably connected to the bracket, and one end of the rotating shaft passes through the bracket and is threaded with a knob.

[0009] As a further improvement to the above technical solution, both ends of the arc-shaped rack are provided with limiting parts.

[0010] As a further improvement to the above technical solution, the base is a hollow structure, and the top of the base is provided with a clearance hole, which is adapted to the gear.

[0011] As a further improvement to the above technical solution, a rotating seat is fixedly installed inside the base, and the rotating seat is rotatably connected to the output shaft of the second motor.

[0012] As a further improvement to the above technical solution, the output shaft of the second motor is connected to the rotating base via a damping bearing.

[0013] The beneficial effects of this utility model are: the shell is provided with an arc-shaped rack, so there is no need to set a separate arc-shaped part, which reduces costs and makes the appearance simple. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 for Figure 1 Another perspective view of the structure is shown.

[0018] In the diagram: 1. Base; 2. Bracket; 21. Decorative cover; 3. Housing; 31. Shaft; 32. Knob; 4. First motor; 5. Fan blade; 6. Arc rack; 7. Gear; 8. Second motor. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 3 A table fan with adjustable angle includes: a base 1, a support 2 on top of the base 1, a housing 3 rotatably mounted on the support 2, a first motor 4 inside the housing 3, fan blades 5 driven onto the output shaft of the first motor 4, an arc-shaped rack 6 on the housing 3, a gear 7 rotatably mounted on the base 1, the gear 7 meshing with the arc-shaped rack 6, and a second motor 8 rotatably mounted on the base 1, the second motor 8 being fixedly connected to the gear 7. In use, rotating the second motor 8 drives the gear 7, which in turn drives the housing 3 to rotate up and down via the arc-shaped rack 6, thereby adjusting the tilt angle of the housing 3.

[0024] In a preferred embodiment, rotating shafts 31 are fixedly mounted on both sides of the housing 3. The rotating shafts 31 are rotatably connected to the bracket 2, and one end of each shaft 31 passes through the bracket 2 and is threaded with a knob 32. Rotating the knob 32 adjusts the tightness between the housing 3 and the bracket 2, thereby changing the rotational damping of the housing 3. This allows the housing 3 to remain stable without rotating the second motor 8, for example, improving the stability of the housing 3 during transportation.

[0025] In a preferred embodiment, both ends of the arc-shaped rack 6 are provided with limiting portions (not shown in the figure). This prevents the gear 7 and the arc-shaped rack 6 from separating.

[0026] In a preferred embodiment, the base 1 has a hollow structure and a clearance hole is provided on the top of the base 1. The clearance hole is used to avoid the gear 7, so that the gear 7 can extend to the outside of the base 1 and mesh with the arc-shaped rack 6.

[0027] In a preferred embodiment, a rotating seat is fixedly installed inside the base 1, and the rotating seat is rotatably connected to the output shaft of the second motor 8. This ensures stable installation of the second motor 8 and the gear 7.

[0028] In a preferred embodiment, the output shaft of the second motor 8 is connected to the rotating seat via a damping bearing.

[0029] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A table fan with easily adjustable angle, characterized in that, include: A base (1) is provided with a bracket (2) on the top of the base (1). A housing (3) is rotatably mounted on the bracket (2). A first motor (4) is provided inside the housing (3). A fan blade (5) is driven on the output shaft of the first motor (4). An arc-shaped rack (6) is provided on the housing (3). A gear (7) is rotatably mounted on the base (1). The gear (7) meshes with the arc-shaped rack (6). A second motor (8) is rotatably mounted on the base (1). The second motor (8) is fixedly connected to the gear (7).

2. The table fan with easily adjustable angle as described in claim 1, characterized in that: A rotating shaft (31) is fixedly installed on both sides of the housing (3). The rotating shaft (31) is rotatably connected to the bracket (2). One end of the rotating shaft (31) passes through the bracket (2) and is threaded with a knob (32).

3. A table fan with an adjustable angle as described in claim 2, characterized in that: Both ends of the arc-shaped rack (6) are provided with limiting parts.

4. A table fan with an adjustable angle as described in any one of claims 1-3, characterized in that: The base (1) is a hollow structure, and the top of the base (1) is provided with a clearance hole, which is adapted to the gear (7).

5. A table fan with an adjustable angle as described in claim 4, characterized in that: A rotating seat is fixedly installed inside the base (1), and the rotating seat is rotatably connected to the output shaft of the second motor (8).

6. A table fan with an adjustable angle as described in claim 5, characterized in that: The output shaft of the second motor (8) is connected to the rotating seat via a damping bearing.

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