Vertical electric fan with angle adjusting and limiting structure

Abstract

The utility model discloses a vertical electric fan with an angle adjusting and limiting structure, which comprises a base, a telescopic support rod fixed on the base and a fan main body arranged at the top end of the telescopic support rod, and a U-shaped groove is arranged at the top end of the telescopic support rod; a circular protrusion is integrally formed at the bottom end of the fan body. Strip-shaped limiting grooves are formed in the circular ring face of the circular protrusion at equal intervals. An F-shaped limiting elastic piece is fixed to the upper portion of the side wall of the telescopic supporting rod through a screw, and the F-shaped limiting elastic piece is located at one end of the U-shaped groove. The circular protrusions are arranged in the U-shaped grooves and connected with the U-shaped grooves through bolts, and the ends of the F-shaped limiting elastic pieces are clamped into the corresponding strip-shaped limiting grooves so that the circular protrusions can be limited. The angle adjusting device is reasonable in structural arrangement, the fan body and the telescopic supporting rod can be quickly connected and limited, the fan body can be effectively prevented from drooping under the action of self gravity and vibration through the F-shaped limiting elastic piece, the stability and reliability of angle adjustment can be improved, and the overall structure is simple.

Description

Technical Field

[0001] This utility model belongs to the field of electric fan technology, specifically relating to a vertical electric fan with an angle adjustment and limiting structure. Background Technology

[0002] An electric fan, also known simply as a fan, is an electrical device that uses an electric motor to drive the fan blades to rotate and accelerate air circulation. A standing electric fan is a common type of fan, consisting of a base, a telescopic support rod, and a rotating base and fan holder at the top of the telescopic support rod. The fan motor is mounted on the fan holder, and the fan blades are fixed to the main shaft of the fan motor. The rotating base is rotatably connected to the top of the telescopic support rod by bolts. While it allows for angle adjustment, it lacks a corresponding limit mechanism, relying solely on bolts for locking. The effectiveness of this locking mechanism is very limited, especially during prolonged use, as the fan will automatically sag under its own weight, making it difficult to ensure stable angle adjustment. Utility Model Content

[0003] The purpose of this invention is to provide a vertical electric fan with an angle-adjustable limiting structure that has a reasonable structural design and is conducive to improving the stability of use.

[0004] The technical solution to achieve the purpose of this utility model is a vertical electric fan with an angle adjustment and limiting structure, including a base, a telescopic support rod fixed on the base, and a fan body set at the top of the telescopic support rod. The top of the telescopic support rod is provided with a U-shaped groove.

[0005] The bottom of the fan body is integrally formed with a circular protrusion;

[0006] The circular protrusion has equally spaced strip-shaped limiting grooves on its annular surface;

[0007] The upper side wall of the telescopic support rod is fixed with an F-shaped limiting spring piece by screws, and the F-shaped limiting spring piece is located at one end of the U-shaped groove.

[0008] The circular protrusion is set in the U-shaped groove and connected by bolts, and the end of the F-shaped limiting spring is inserted into the corresponding strip limiting groove to limit the circular protrusion.

[0009] A further preferred embodiment is that the width of the F-shaped limiting spring is matched with the width of the strip-shaped limiting groove.

[0010] A further preferred embodiment is that the F-shaped limiting spring is a stainless steel sheet with a thickness of 0.1-0.5 mm.

[0011] A further preferred embodiment is that the top end of the F-shaped limiting spring is located below the bolt.

[0012] A further preferred embodiment is that the upper part of the side wall of the telescopic support rod is provided with a clearance cavity;

[0013] The lower part of the F-shaped limiting spring is located inside the clearance cavity and is fixed by screws.

[0014] This utility model has positive effects: The structure of this utility model is reasonable. It is equipped with an F-shaped limiting spring and a bolt, which can quickly realize the connection and limiting of the fan body and the telescopic support rod. In addition, the F-shaped limiting spring can effectively prevent the fan body from sagging under its own weight and vibration, which is conducive to improving the stability and reliability of angle adjustment. Moreover, the overall structure is simple, convenient to process and assemble, and has strong applicability. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the specific structure of the F-shaped spring in this utility model;

[0018] Figure 3 This is a schematic diagram of the specific structure of the fan body and the circular protrusion in this utility model;

[0019] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Attached reference numerals: 1. Base; 2. Telescopic support rod; 3. Fan body; 4. U-shaped groove; 5. Circular protrusion; 6. Strip-shaped limiting groove; 7. Screw; 8. F-shaped limiting spring; 9. Alternating cavity; 10. Bolt. Detailed Implementation

[0021] 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.

[0022] Example

[0023] See Figures 1 to 4As shown, a vertical electric fan with an angle adjustment limiting structure includes a base 1, a telescopic support rod 2 fixed on the base, and a fan body 3 set at the top of the telescopic support rod. In this embodiment, the fan body, base, and telescopic support rod are all conventional structures of the prior art, and are simply applied, so they are not described in detail.

[0024] In this embodiment, the top end of the telescopic support rod is provided with a U-shaped groove 4; the bottom end of the fan body is integrally formed with a circular protrusion 5; during assembly, the circular protrusion is set in the U-shaped groove and connected by bolts, so that the angle can be adjusted as needed by rotating the circular protrusion around the bolt in the U-shaped groove, and the adjustment operation is convenient.

[0025] Meanwhile, in practical applications, the circular protrusion has equally spaced strip-shaped limiting grooves 6 on its annular surface; the upper part of the side wall of the telescopic support rod is fixed with an F-shaped limiting spring 8 by screws 7, and the F-shaped limiting spring is located at one end of the U-shaped groove; the circular protrusion is set in the U-shaped groove and connected by bolts 10, and the end of the F-shaped limiting spring is engaged in the corresponding strip-shaped limiting groove to limit the circular protrusion. With the above structure, when the circular protrusion is rotated to adjust the angle, the external force pushes the F-shaped limiting spring outward, making it away from the strip-shaped limiting groove. After the angle is adjusted, the external force is released, and the F-shaped limiting spring is reset under the action of elasticity and its end is engaged in the strip-shaped limiting groove for positioning. This can prevent the circular protrusion from sagging under the weight or vibration of the fan body, ensuring the stability and reliability of the angle adjustment.

[0026] To improve the overall aesthetics of the structure, a recessed cavity 9 is provided on the upper part of the side wall of the telescopic support rod; during assembly, the lower part of the F-shaped limiting spring is located within the recessed cavity and fixed with screws. This improves the convenience and effectiveness of assembly.

[0027] Furthermore, in this embodiment, the width of the F-shaped limiting spring matches the width of the strip-shaped limiting groove. The F-shaped limiting spring is a stainless steel sheet with a thickness of 0.1-0.5mm. The top of the F-shaped limiting spring is located below the bolt. This structure ensures the elasticity of the F-shaped limiting spring without affecting the normal angle adjustment operation of the fan body.

[0028] This utility model has positive effects: The structure of this utility model is reasonable. It is equipped with an F-shaped limiting spring and a bolt, which can quickly realize the connection and limiting of the fan body and the telescopic support rod. In addition, the F-shaped limiting spring can effectively prevent the fan body from sagging under its own weight and vibration, which is conducive to improving the stability and reliability of angle adjustment. Moreover, the overall structure is simple, convenient to process and assemble, and has strong applicability.

[0029] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0030] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A vertical electric fan with an angle-adjustable limiting structure, comprising a base, a telescopic support rod fixed to the base, and a fan body disposed at the top of the telescopic support rod, characterized in that: The top end of the telescopic support rod is provided with a U-shaped groove; The bottom of the fan body is integrally formed with a circular protrusion; The circular protrusion has equally spaced strip-shaped limiting grooves on its annular surface; The upper side wall of the telescopic support rod is fixed with an F-shaped limiting spring piece by screws, and the F-shaped limiting spring piece is located at one end of the U-shaped groove. The circular protrusion is set in the U-shaped groove and connected by bolts, and the end of the F-shaped limiting spring is inserted into the corresponding strip limiting groove to limit the circular protrusion.

2. A vertical electric fan with an angle adjustment limiting structure according to claim 1, characterized in that: The width of the F-shaped limiting spring is matched with the width of the strip-shaped limiting groove.

3. A vertical electric fan with an angle adjustment limiting structure according to claim 1, characterized in that: The F-shaped limiting spring is a stainless steel sheet with a thickness of 0.1-0.5mm.

4. A vertical electric fan with an angle adjustment limiting structure according to claim 1, characterized in that: The top of the F-shaped limiting spring is located below the bolt.

5. A vertical electric fan with an angle adjustment limiting structure according to claim 1, characterized in that: An abutment cavity is provided on the upper part of the side wall of the telescopic support rod; The lower part of the F-shaped limiting spring is located inside the clearance cavity and is fixed by screws.

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