Fan structure capable of being adjusted in rotating mode

Abstract

The utility model discloses a fan structure capable of being adjusted in a rotating mode, the fan structure comprises a base assembly and a fan assembly installed on the base assembly, the base assembly comprises a base and a rotating seat arranged on the base in a rotating mode, the fan assembly is installed on the rotating seat, a fixed gear is arranged on the base, and the fixed gear is arranged on the base. A fixed gear is arranged on the base, the fixed gear and the base are of an injection molding integrated structure, a driving motor is arranged on the rotating seat, a driving gear is arranged on the driving motor, the driving gear is meshed with the fixed gear, and the rotating seat rotates relative to the base around the axis of the fixed gear. According to the utility model, the fixed gear and the driving gear are matched to rotate, and the fixed gear and the base are subjected to integral injection molding, namely the fixed gear and the base are of an integral structure, so that the assembly of the fixed gear is not needed, the number of parts is reduced, the assembly procedures can be reduced, the production cost is reduced, and the production requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a rotationally adjustable fan structure. Background Art

[0002] Prior art, such as the Chinese invention patent application with publication number CN 108953200A, discloses an air circulation fan comprising a head, a base, a chassis, a bracket, and an oscillating mechanism. The base is mounted on the chassis, and the oscillating mechanism comprises a motor, a turntable, a crank, and a connecting rod. The motor is fixed below the chassis, the crank is connected to the motor's output shaft, one end of the connecting rod is connected to the crank, and the other end is connected to the turntable. One end of the bracket is connected to the turntable, and the other end is connected to the head. The base is fixed to the turntable and is sleeved on the outside of the bracket. The oscillating mechanism is provided, and the crank rotates when the motor rotates, and then the turntable rotates via the connecting rod, so that the turntable drives the head to swing, meeting the requirements of the air circulation fan.

[0003] Based on the above, in the existing technology, a motor, a crank and a connecting rod are used for connection and transmission to realize the turntable driving the machine head to swing. This structure has a large number of parts, slow assembly efficiency and high manufacturing cost, which does not meet production requirements and needs further improvement. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a fan structure with a small number of parts, convenient assembly and low cost.

[0005] A rotationally adjustable fan structure designed for this purpose includes a base assembly and a fan assembly mounted on the base assembly, the base assembly including a base and a rotating seat rotatably arranged on the base, the fan assembly being mounted on the rotating seat, a fixed gear being provided on the base, the fixed gear and the base being an integral injection-molded structure, a drive motor being provided on the rotating seat, a drive gear being provided on the drive motor, the drive gear being meshed with the fixed gear, and the rotating seat rotating relative to the base about the axis of the fixed gear.

[0006] Preferably, the fan assembly includes a connecting column connected to the rotating seat and a main body assembly arranged on the connecting column;

[0007] The interior of the connecting column is hollow and the lower end is open. The rotating seat is provided with an opening at a position corresponding to the connecting column. The driving motor is located in the opening and partially extends into the interior of the connecting column.

[0008] Preferably, an assembly groove is provided on the upper surface of the rotating seat, the lower end of the connecting column is inserted into the assembly groove and connected to the rotating seat, and the opening is located in the assembly groove.

[0009] Preferably, an axial hole is provided on the base, the fixed gear and the axial hole are coaxially arranged with each other, the rotating seat is fixedly connected to a shaft body, and the shaft body is rotatably arranged in the axial hole.

[0010] Preferably, the base is provided with an annular track, the rotating seat is provided with a plurality of downwardly extending mounting tubes, the lower ends of the mounting tubes are open, balls that fit into the annular track are provided in the mounting tubes, and elastic elements that apply elastic force to the balls are provided in the mounting tubes above the balls;

[0011] When the rotating seat rotates relative to the base about the axis of the fixed gear, the balls roll along the annular track.

[0012] Compared to the prior art, the present invention features a fixed gear on the base, which is an integral injection-molded structure with the base. A drive motor is provided on the rotating base, which is provided with a drive gear that meshes with the fixed gear, allowing the rotating base to rotate relative to the base about the axis of the fixed gear. The present invention utilizes a fixed gear that rotates in conjunction with the drive gear, and integrally injection-moldes the fixed gear and base, meaning they form an integral structure. This eliminates the need for assembly of the fixed gear, reduces the number of parts, and reduces the number of assembly steps, thereby lowering production costs and meeting production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of the utility model;

[0015] Figure 3 This is one of the cross-sectional structural diagrams of the base assembly;

[0016] Figure 4 This is the second schematic diagram of the cross-sectional structure of the base assembly;

[0017] Figure 5 The third schematic diagram of the cross-sectional structure of the base assembly;

[0018] Figure 6 for Figure 5 A in the middle is an enlarged structural diagram;

[0019] Figure 7 Schematic diagram of the three-dimensional structure of the base. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 7 A fan structure with rotation adjustment includes a base assembly 10 and a fan assembly 20 installed on the base assembly 10, the base assembly 10 includes a base 110 and a rotating seat 120 rotatably arranged on the base 110, the fan assembly 20 is installed on the rotating seat 120, the base 110 is provided with a fixed gear 310, the fixed gear 310 and the base 110 are an injection-molded integral structure, a driving motor 320 is provided on the rotating seat 120, the driving motor 320 is provided with a driving gear 330, the driving gear 330 is engaged with the fixed gear 310, and the rotating seat 120 rotates relative to the base 110 about the axis of the fixed gear 310.

[0022] The utility model adopts a fixed gear and a driving gear to rotate in coordination, and the fixed gear and the base are integrally injection-molded, that is, the fixed gear and the base are an integrated structure, and there is no need to assemble the fixed gear. In addition to reducing the number of parts, the assembly process can also be reduced to reduce production costs and meet production requirements.

[0023] See also Figure 2 and Figure 3 The fan assembly 20 includes a connecting post 220 connected to the rotating base 120 and a main body assembly 210 disposed on the connecting post 220. The connecting post 220 is hollow and has an open lower end. The rotating base 120 has an opening 130 at a position corresponding to the connecting post 220. The drive motor 320 is located within the opening 130 and partially extends into the interior of the connecting post 220. In this embodiment, the provision of the opening 130 allows a portion of the drive motor 320 to be embedded in the connecting post 220, thereby further reducing the thickness of the base assembly 10 and preventing the thickness of the drive motor 320 from affecting the thickness of the base assembly 10.

[0024] See also Figure 2 The upper surface of the rotating base 120 is provided with an assembly groove 140, and the lower end of the connecting post 220 is inserted into the assembly groove 140 to connect with the rotating base 120, and the opening 130 is located in the assembly groove 140. In this embodiment, the plug-in assembly of the rotating base 120 and the connecting post 220 can optimize the appearance of the connection point and make the overall appearance more coordinated.

[0025] See also Figure 2A mating hole 141 is provided in the assembly groove 140 , and a positioning column 221 that is mated with the mating hole 141 is provided at the lower end of the connecting column 220 .

[0026] See also Figure 3 The base 110 is provided with an axial hole 111 , the fixed gear 310 and the axial hole 111 are coaxially arranged with each other, the rotating seat 120 is fixedly connected with the shaft body 40 , and the shaft body 40 is rotatably arranged in the axial hole 111 .

[0027] See also Figure 5 and Figure 6 The base 110 is provided with an annular track 112, and the rotating base 120 is provided with a plurality of downwardly extending mounting tubes 121. The lower ends of the mounting tubes 121 are open. Balls 50 are mounted within the mounting tubes 121 and engage with the annular track 112. Elastic elements 510 are mounted within the mounting tubes 121 above the balls 50 to apply elastic force to the balls 50. When the rotating base 120 rotates relative to the base 110 about the axis of the fixed gear 310, the balls 50 roll along the annular track 112. The balls 50 cooperate with the annular track 112 to effectively ensure rotational stability.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A rotationally adjustable fan structure, comprising a base assembly (10) and a fan assembly (20) mounted on the base assembly (10), wherein the base assembly (10) comprises a base (110) and a rotating seat (120) rotatably disposed on the base (110), and the fan assembly (20) is mounted on the rotating seat (120), characterized in that: The base (110) is provided with a fixed gear (310), and the fixed gear (310) and the base (110) are an injection-molded integral structure. The rotating seat (120) is provided with a driving motor (320), and the driving motor (320) is provided with a driving gear (330), and the driving gear (330) is meshed with the fixed gear (310). The rotating seat (120) rotates relative to the base (110) about the axis of the fixed gear (310).

2. The rotationally adjustable fan structure according to claim 1, characterized in that: The fan assembly (20) comprises a connecting post (220) connected to the rotating seat (120) and a main unit assembly (210) arranged on the connecting post (220); The connecting column (220) is hollow inside and has an opening at the lower end. The rotating seat (120) is provided with an opening (130) at a position corresponding to the connecting column (220). The driving motor (320) is located in the opening (130) and partially extends into the interior of the connecting column (220).

3. The rotationally adjustable fan structure according to claim 2, characterized in that: An assembly groove (140) is provided on the upper surface of the rotating seat (120), the lower end of the connecting column (220) is inserted into the assembly groove (140) and connected to the rotating seat (120), and the opening (130) is located in the assembly groove (140).

4. The rotationally adjustable fan structure according to claim 1, characterized in that: The base (110) is provided with an axial hole (111), the fixed gear (310) and the axial hole (111) are coaxially arranged with each other, the rotating seat (120) is fixedly connected with a shaft body (40), and the shaft body (40) is rotatably arranged in the axial hole (111).

5. The rotationally adjustable fan structure according to claim 1, characterized in that: The base (110) is provided with an annular track (112), and the rotating seat (120) is provided with a plurality of downwardly extending mounting tubes (121), the lower ends of the mounting tubes (121) are open, and balls (50) that fit the annular track (112) are provided in the mounting tubes (121), and elastic elements (510) that apply elastic force to the balls (50) are provided in the mounting tubes (121) above the balls (50); When the rotating seat (120) rotates relative to the base (110) about the axis of the fixed gear (310), the ball (50) rolls along the annular track (112).

Images