Circulating fan capable of supplying air in all directions

Abstract

The invention relates to the technical field of electric fans, and provides an omni-directional air supply circulating fan which comprises a fan head installed on a support. A base is further included, a supporting column of a hollow structure is arranged on the base, and the upper end of the supporting column is rotationally connected with the support. A rotating shaft coaxially sleeved with the supporting column is fixedly arranged at the bottom of the bracket; the rotating shaft is sleeved with a gear ring; the inner wall of the supporting column is provided with a driving gear engaged and matched with the gear ring. And the driving gear is in transmission connection with a driving motor. Therefore, the omni-directional air supply of the fan head can be realized through the rotation of the bracket relative to the supporting column. The rotating speed of the driving gear is controlled through the driving motor, and then the rotating speed of the fan head is controlled. And the fan head can swing back and forth to supply air by switching the rotating direction of the driving motor.

Description

Technical Field

[0001] The invention belongs to the technical field of electric fans, and in particular relates to a circulating fan capable of supplying air in all directions. Background Art

[0002] Existing electric fans mostly use a manual method of adjusting the shaking angle, that is, adjusting the wind direction by rotating the base or the shaking joint. Although this method is simple, it is not accurate enough and has a limited adjustment range.

[0003] Some electric fans are equipped with an electric shaking function, which is driven by a motor to achieve shaking, but usually can only achieve shaking at a single angle or a fixed angle, and cannot achieve flexible adjustment at multiple angles.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0005] In view of the above-mentioned defects, the present invention mainly provides a circulating fan with omnidirectional air supply to solve the technical problem of limited fan shaking angle.

[0006] In order to solve the above problems, the present invention provides a circulating fan with omnidirectional air supply, comprising a fan head, which is mounted on a bracket; and a base, on which a support column with a hollow structure is provided, and the upper end of the support column is rotatably connected to the bracket;

[0007] A rotating shaft coaxially sleeved with the supporting column is fixed at the bottom of the bracket; a gear ring is sleeved on the rotating shaft; a driving gear meshing with the gear ring is provided on the inner wall of the supporting column; and the driving gear is transmission-connected to the driving motor.

[0008] According to the circulating fan with omnidirectional air supply of the present invention, the fan head is rotatably arranged on the bracket.

[0009] According to the circulating fan with omnidirectional air supply of the present invention, the bracket is connected to the supporting column via a thrust bearing.

[0010] According to the omnidirectional air supply circulation fan of the present invention, at least two support gears meshing with the gear ring are further provided on the inner wall of the support column; the support gears and the driving gear are evenly arranged around the gear ring.

[0011] According to the omnidirectional air supply circulating fan of the present invention, there are three support columns, which are connected in sequence from top to bottom; the support column located at the top is rotatably connected to the bracket, and the support column located at the bottom is fixedly connected to the base.

[0012] For the omnidirectional air supply circulation fan according to the present invention, a brush holder is fixedly arranged on the outer wall of the rotating shaft, and a brush is arranged on the brush holder; an annular wire holder is fixedly arranged on the inner wall of the support column, and a wire in abutting cooperation with the brush is arranged on the wire holder.

[0013] For the omnidirectional air supply circulation fan according to the present invention, the brush is fixedly connected to a brush rod, and the brush rod is slidably arranged on the brush holder; a spring is sleeved on the brush rod.

[0014] For the omnidirectional air supply circulation fan according to the present invention, the driving motor is a synchronous motor.

[0015] For the omnidirectional air supply circulation fan according to the present invention, the circulation fan further includes a remote controller; the base is of a hollow structure, a control board is installed in the base, and the control board is electrically connected to a receiver for receiving remote control signals.

[0016] For the omnidirectional air supply circulation fan according to the present invention, the remote controller is an infrared remote controller.

[0017] In summary, according to the present invention, by rotating the bracket relative to the support column, omnidirectional air supply of the fan head can be realized. By controlling the rotation speed of the driving gear by the driving motor, the rotation speed of the fan head can be further controlled. The reciprocating swing air supply of the fan head can also be realized by switching the rotation direction of the driving motor. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 the internal structural diagram in the direction A in

[0020] Figure 3 is Figure 2 the structural diagram of area B in

[0021] In the figure: 1 - fan head, 11 - thrust bearing; 2 - bracket, 21 - support column, 22 - base, 23 - rotating shaft; 3 - driving gear, 31 - gear ring, 32 - support gear, 33 - driving motor; 4 - brush, 41 - brush rod, 42 - spring, 43 - brush holder; 5 - wire, 51 - wire holder. Detailed Embodiments

[0022] See Figure 1 , the present invention provides an omnidirectional air supply circulation fan, including a fan head 1, and the fan head 1 is installed on a bracket 2; it further includes a base 22, a support column 21 with a hollow structure is arranged on the base 22, and the upper end of the support column 21 is rotatably connected to the bracket 2;

[0023] See Figure 2The bottom of the bracket 2 is fixed with a rotating shaft 23 which is coaxially sleeved with the supporting column 21; the rotating shaft 23 is sleeved with a gear ring 31; a driving assembly is provided on the inner wall of the supporting column 21; the driving assembly includes a driving gear 3 which is arranged on the inner wall of the supporting column 21 and meshes with the gear ring 31; the driving gear 3 is transmission-connected to a driving motor 33;

[0024] The bracket 2 can rotate 360° relative to the support column 21, so that the fan head 1 can supply air in all directions. The rotation speed of the driving gear 3 is controlled by the driving motor 33, thereby controlling the rotation speed of the fan head 1. The fan head 1 can also swing back and forth to supply air by switching the rotation direction of the driving motor 33.

[0025] As an embodiment, the fan head 1 is rotatably arranged on the bracket 2; the fan head 1 can rotate in a vertical plane relative to the bracket 2, so that it can blow upward, blow auxiliary or blow horizontally, thereby expanding the coverage area of ​​the air supply and improving the user experience.

[0026] As a preferred solution, the bracket 2 is connected to the support column 21 via a thrust bearing 11, which can bear the gravity of the fan head 1 and the support column 21, allowing them to rotate smoothly.

[0027] Furthermore, at least two support gears 32 meshing with the gear ring 31 are provided on the inner wall of the support column 21; the support gears 32 and the driving gear 3 are evenly arranged around the gear ring 31; they jointly support the gear ring 31 to limit its radial movement, so that the fan head 1 rotates smoothly.

[0028] As an embodiment, the present invention has three support columns 21, which are connected in sequence from top to bottom; the support column 21 located at the top is rotatably connected to the bracket 2, and the support column 21 located at the bottom is fixedly connected to the base 22; the number of support columns 21 can be selected according to the requirements of the air supply height.

[0029] See also Figure 3 As an embodiment, a brush holder 43 is fixedly arranged on the outer wall of the rotating shaft 23, and a brush 4 is arranged on the brush holder 43; an annular wire holder 51 is fixedly arranged on the inner wall of the supporting column 21, and a wire 5 abutting against the brush 4 is arranged on the wire holder 51;

[0030] The wire 5 is connected to the power line, and the brush 4 is electrically connected to the fan of the fan head 1. The brush 4 brushes electricity from the wire 5, thereby realizing the power supply of the fan head 1 during the rotation process.

[0031] Furthermore, the brush 4 is fixedly connected to a brush rod 41, and the brush rod 41 is slidably arranged on the brush holder 43; the brush rod 41 is sleeved with a spring 42, which provides thrust for the brush 4 so that it can be pressed on the wire 5 with a certain pressure to maintain good electrical contact.

[0032] As an embodiment, the drive motor 33 of the present invention is a synchronous motor, and the range of its rotation angle can be accurately controlled to achieve the reciprocating swing air supply of the fan head 1.

[0033] As an embodiment, the circulation fan of the present invention further includes a remote controller; the base 22 is a hollow structure, and a control board is installed inside the base 22. The control board is electrically connected to a receiver for receiving remote control signals; users can adjust the air supply size, the rotation speed of the fan head 1, the swing amplitude, etc. through remote control. It is convenient for users to use and improves the user experience.

[0034] Further, the remote controller is an infrared remote controller.

[0035] In summary, the present invention provides a circulation fan with omnidirectional air supply. By rotating the bracket relative to the support column, omnidirectional air supply of the fan head can be achieved. By controlling the rotation speed of the drive gear through the drive motor, the rotation speed of the fan head can be further controlled. The reciprocating swing air supply of the fan head can also be achieved by switching the rotation direction of the drive motor.

[0036] Of course, the present invention can also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A circulating fan for omnidirectional air supply, characterized in that: It includes a fan head, which is mounted on a bracket; it also includes a base, which is provided with a support column with a hollow structure, and the upper end of the support column is rotatably connected to the bracket; A rotating shaft coaxially sleeved with the supporting column is fixed at the bottom of the bracket; a gear ring is sleeved on the rotating shaft; a driving gear meshing with the gear ring is provided on the inner wall of the supporting column; and the driving gear is transmission-connected to the driving motor.

2. The omnidirectional air circulation fan according to claim 1, characterized in that: The fan head is rotatably arranged on the bracket.

3. The omnidirectional air circulation fan according to claim 1, characterized in that: The bracket is connected to the support column through a thrust bearing.

4. The omnidirectional air circulation fan according to claim 1, characterized in that: At least two supporting gears meshing with the gear ring are also arranged on the inner wall of the supporting column; the supporting gears and the driving gears are evenly arranged around the gear ring.

5. The omnidirectional air circulation fan according to claim 1, characterized in that: There are three support columns, which are connected in sequence from top to bottom; the support column located at the top is rotatably connected to the bracket, and the support column located at the bottom is fixedly connected to the base.

6. The omnidirectional air circulation fan according to any one of claims 1 to 5, characterized in that: A brush holder is fixedly arranged on the outer wall of the rotating shaft, and a brush is arranged on the brush holder; an annular wire holder is fixedly arranged on the inner wall of the supporting column, and a wire abutting and cooperating with the brush is arranged on the wire holder.

7. The omnidirectional air circulation fan according to claim 6, characterized in that: The brush is fixedly connected to a brush rod, and the brush rod is slidably arranged on the brush seat; the brush rod is sleeved with a spring.

8. The omnidirectional air circulation fan according to claim 6, characterized in that: The driving motor is a synchronous motor.

9. The omnidirectional air circulation fan according to claim 6, characterized in that: The circulation fan also includes a remote controller; the base is a hollow structure, a control panel is installed in the base, and the control panel is electrically connected to a receiver for receiving remote control signals.

10. The omnidirectional air circulation fan according to claim 9, characterized in that: The remote controller is an infrared remote controller.

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