Desktop fan fixed in multiple modes

Abstract

The utility model relates to the technical field of desktop fans, in particular to a desktop fan fixed in multiple modes, which comprises a fan main body, a fan blade protective cover is arranged at the front end of the fan main body, a driving motor is integrated in the fan main body, and U-shaped supports are hinged to two sides of the fan main body. The bottom of the U-shaped support is rotationally connected with a composite base integrating the counterweight function, the wall fixing function and the lifting function, a multifunctional control system is arranged on the top of the rear side of the fan body, and a protection structure is arranged in the fan body. The desktop fan capable of being fixed in multiple modes has multiple fixing modes and is high in adjusting flexibility and safety protection performance.

Description

Technical Field

[0001] This utility model relates to the field of desktop fan technology, specifically to a desktop fan with multiple fixing methods. Background Technology

[0002] Traditional products often rely on simple bases or clip-on structures to fix the desktop, which cannot meet the diverse needs of wall hanging, mobile lifting and other scenarios. When users need to use them in space-constrained areas such as kitchens and workshops, they often face problems such as limited installation positions and insufficient stability. In particular, conventional counterweight bases lack structural optimization and are prone to displacement and tipping under high-frequency vibration of the motor. Utility Model Content

[0003] To solve the above problems, this utility model provides a desktop fan with multiple fixing methods, high adjustment flexibility, and high safety protection.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a desktop fan with multiple fixing methods, including a fan body, a fan blade protective cover at the front end of the fan body, an integrated drive motor inside, U-shaped brackets hinged to both sides of the fan body, a composite base integrating counterweight, wall fixing and lifting functions rotatably connected to the bottom of the U-shaped brackets, a multi-functional control system at the top rear side of the fan body, and a protective structure inside the fan body.

[0005] As an improvement, the center of the fan blade protective cover is provided with a radial grid with concentric circular patterns, the grid gap width is 3-5mm, and the adjacent grid bars are evenly distributed at an included angle.

[0006] As an improvement, the U-shaped bracket includes a U-shaped bent metal bracket, with hinge shafts between the two ends of the U-shaped bent metal bracket and the two sides of the fan body, and an anti-slip rubber pad at the bottom of the U-shaped bent metal bracket.

[0007] As an improvement, the composite base includes a circular counterweight that is rotatably connected to a U-shaped bent metal bracket. A turntable is rotatably connected to the bottom of the circular counterweight. The turntable has a suspension groove for connecting hooks and three evenly distributed mounting screw holes.

[0008] As an improvement, the bottom of the circular counterweight is also provided with an arc-shaped groove located outside the circular counterweight and coaxial with the circular counterweight. The arc-shaped groove is provided with arc-shaped handles at both ends that are hinged to the arc-shaped groove. The arc-shaped handles can be completely hidden in the arc-shaped groove.

[0009] As an improvement, the bottom of the circular counterweight is provided with a handle groove that communicates with the arc-shaped groove.

[0010] As an improvement, the multi-functional control system includes a control panel located at the top rear of the fan body, an airflow adjustment button and a switch button connected to the control panel at the rear of the fan body, a battery mounting bracket for installing a lithium battery inside the fan body, and a Type-C charging port for powering the lithium battery at the top of the fan body.

[0011] As an improvement, the protective structure includes an annular reinforcing frame located inside the fan body, and the annular reinforcing frame is provided with a number of evenly distributed reinforcing ribs.

[0012] The advantages of this utility model compared with the prior art are as follows: by innovatively integrating the counterweight, rotatable turntable and hidden handle structure through the composite base, it can freely switch between four fixing modes: stable counterweight on the desktop, wall screw fixing, hanging groove connection and mobile lifting. It breaks through the limitations of the traditional single fixing method and can adapt to the needs of complex space scenarios such as kitchens and workshops.

[0013] 1. The circular counterweight is made of cast iron and combined with the bottom anti-slip rubber pad to form a low center of gravity and large contact surface dual stability structure. With the U-shaped bracket hinge shaft damping, the whole machine can still reduce displacement under the high frequency vibration of the motor, which improves the anti-tipping performance compared with traditional bases.

[0014] 2. The radial grid design, along with the built-in annular reinforcing frame and radial reinforcing ribs, forms a protective structure that enhances the drop resistance of the entire machine and improves its impact resistance compared to conventional structures. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a desktop fan with multiple fixing methods according to this utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of a desktop fan with multiple fixing methods according to this utility model. Figure 2 .

[0017] Figure 3 This is a structural schematic diagram of a composite base for a desktop fan with multiple fixing methods according to this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of a multi-functional control system for a desktop fan with multiple fixing methods according to this utility model.

[0019] As shown in the figure: 1. Fan body; 11. Fan blade protective cover; 12. Radial grille; 2. U-shaped bracket; 21. U-shaped bent metal bracket; 22. Hinge shaft; 23. Anti-slip rubber pad; 3. Composite base; 31. Circular counterweight; 32. Turntable; 33. Suspension groove; 34. Mounting screw hole; 35. Arc-shaped groove; 36. Arc-shaped handle; 37. Handle groove; 4. Multifunctional control system; 41. Control panel; 42. Type-C charging interface; 43. Airflow adjustment button; 44. Switch button; 45. Battery mounting bracket; 51. Circular reinforcing frame; 52. Reinforcing rib. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Example 1:

[0022] Combined with appendix Figure 1 and attached Figure 2 The fan body 1 is injection molded from ABS engineering plastic, and a fan blade guard 11 is fitted to its front end. The fan blade guard 11 is connected to the fan body 1 via a snap-fit ​​structure, and has a radial grille 12 in the center. The grille bars are distributed radially at an inclined angle, and the gap width between the grille bars is 3-5mm, which meets the standards for protecting infants' fingers. The fan body 1 integrates a brushless DC motor with a rated power of 25W, which is fixed to the motor mounting cavity of the fan body 1 by bolts.

[0023] The U-shaped bent metal bracket 21 in the U-shaped bracket 2 is made of 304 stainless steel tube bent. Its end is connected to the shaft holes on both sides of the fan body 1 through the hinge shaft 22. The hinge shaft 22 has a built-in damping rubber ring, which can realize the bracket to be suspended at multiple angles. The anti-slip rubber pad 23 at the bottom of the bracket is made of SBR rubber and has a diamond anti-slip pattern with staggered distribution on the surface.

[0024] Combined with appendix Figure 3 The circular counterweight 31 of the composite base 3 is made of cast iron and is connected to the U-shaped bracket 2 via a thrust ball bearing. The turntable 32 forms a 360° rotating pair with the circular counterweight 31 via a central rotating shaft. Three mounting screw holes 34 on the edge of the turntable 32 are evenly distributed at 120° intervals, allowing for wall mounting with expansion bolts. The hanging groove 33 is an inverted T-shaped groove, compatible with commercially available standard hooks.

[0025] Example 2:

[0026] Combined with appendix Figure 3When the user needs to move the fan, they insert their fingers into the handle groove 37 at the bottom of the circular counterweight 31 and pull outwards the arc-shaped handle 36 hidden in the arc-shaped groove 35. The arc-shaped handle 36 is made of spring steel sheet, and a torsion spring automatic reset mechanism is provided at the hinge point. The torsion spring automatic reset mechanism is existing technology, so it is not described in detail here. When unfolded, it forms a certain height of handle space.

[0027] Example 3:

[0028] Combined with appendix Figure 4 The control panel 41 of the multi-functional control system 4 is integrated into the rear of the fan body 1. The power switch 44 is used to start the device, and the airflow adjustment button 43 is used to adjust the motor speed. The battery mounting bracket 45 is used to fix the battery and provide protection. The Type-C charging port 42 is located in the groove on the top of the fan body 1 and is equipped with a lithium battery to ensure battery life.

[0029] Example 4:

[0030] The annular reinforcing frame 51 is made of fiberglass composite material and is bolted to the inner wall of the fan body 1. The reinforcing ribs 52 distributed on the frame are evenly arranged, with a gap between the top and the motor housing. This structure reduces the overall vibration amplitude and effectively disperses the impact force of a drop.

[0031] In the specific implementation of this utility model, when the desktop placement mode is required, the U-shaped bracket 2 is placed on the desktop so that the anti-slip rubber pad 23 contacts the desktop. The circular counterweight 31 increases the contact area between the anti-slip rubber pad 23 and the desktop. The circular counterweight 31 is located at the center of the anti-slip rubber pad 23 and the desktop support point.

[0032] When wall-mounted installation is required, the rotating turntable 32 aligns the mounting screw holes 34 with the wall-embedded parts. After the bolts are tightened, the hanging groove 33 can additionally support the hook, forming a double fixation.

[0033] When it is necessary to lift and move the machine, the entire machine can be lifted and moved using the curved handle 36.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A desktop fan with multiple fixing methods, comprising a fan body (1), wherein the fan body (1) has a fan blade protective cover (11) at its front end and integrates a drive motor, and U-shaped brackets (2) are hinged to both sides of the fan body (1), characterized in that: The bottom of the U-shaped bracket (2) is rotatably connected to a composite base (3) that integrates counterweight, wall fixing and lifting functions. The fan body (1) is equipped with a multi-functional control system (4) on the top rear side. The fan body (1) is equipped with a protective structure.

2. A desktop fan with multiple fixing methods according to claim 1, characterized in that: The fan blade protective cover (11) has a radial grid (12) with concentric circle patterns at its center. The grid gap width is 3-5mm, and the adjacent grid bars are evenly distributed at an angle.

3. A desktop fan with multiple fixing methods according to claim 1, characterized in that: The U-shaped bracket (2) includes a U-shaped bent metal bracket (21), with hinge shafts (22) between the two ends of the U-shaped bent metal bracket (21) and the two sides of the fan body (1), and an anti-slip rubber pad (23) at the bottom of the U-shaped bent metal bracket (21).

4. A desktop fan with multiple fixing methods according to claim 2, characterized in that: The composite base (3) includes a circular counterweight (31) rotatably connected to a U-shaped bent metal bracket (21). A turntable (32) is rotatably connected to the bottom of the circular counterweight (31). The turntable (32) is provided with a hanging groove (33) for connecting hooks. The turntable (32) is provided with three evenly distributed mounting screw holes (34).

5. A desktop fan with multiple fixing methods according to claim 4, characterized in that: The bottom of the circular counterweight (31) is also provided with an arc-shaped groove (35) located outside the circular counterweight (31) and coaxial with the circular counterweight (31). The arc-shaped groove (35) is provided with arc-shaped handles (36) with both ends hinged to the arc-shaped groove (35). The arc-shaped handles (36) can be completely hidden in the arc-shaped groove (35).

6. A desktop fan with multiple fixing methods according to claim 5, characterized in that: The bottom of the circular counterweight (31) is provided with a handle groove (37) that communicates with the arc-shaped groove (35).

7. A desktop fan with multiple fixing methods according to claim 1, characterized in that: The multi-functional control system (4) includes a control panel (41) located on the top rear side of the fan body (1). The fan body (1) has an airflow adjustment button (43) and a switch button (44) connected to the control panel (41) on the rear side. The fan body (1) has a battery mounting bracket (45) for installing lithium batteries inside. The top of the fan body (1) has a Type-C charging port (42) for powering lithium batteries.

8. A desktop fan with multiple fixing methods according to claim 1, characterized in that: The protective structure includes an annular reinforcing frame (51) located inside the fan body (1), and the annular reinforcing frame (51) is provided with a number of evenly distributed reinforcing ribs (52).

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