A type of vertical fan oscillating head structure

Abstract

This utility model relates to the field of household appliance technology, specifically to a vertical fan oscillating head structure. It includes a base, a vertical rod mounted on the base, a fan head assembly mounted on the vertical rod, and an oscillating head assembly mounted on the fan head assembly for automatically oscillating the fan head assembly. Through the cooperation between the positioning structure on the positioning member and the limiting groove inside the connecting pipe, the fan head assembly can maintain a stable angle when manually or automatically oscillating to any angle, thanks to the abutment between the positioning structure and the inner wall of the limiting groove, preventing deviation or shaking caused by external forces. Furthermore, the positioning member is rotatably sleeved on the rotating shaft and circumferentially fixed to the rotating shaft through the limiting structure, ensuring stable power transmission during rotation. The structure is compact and easy to assemble. This design effectively improves the stability of the fan and user satisfaction in practical applications. This vertical fan oscillating head structure is not only simple in structure and low in cost, but also easy to implement and promote.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a vertical fan oscillating head structure. Background Technology

[0002] In modern home and office environments, electric fans, as basic air circulation and cooling devices, are constantly being designed and technologically advanced to meet users' growing needs. Automatic oscillation is a key feature of these fans, increasing the coverage of airflow and thus improving comfort. However, despite the variety of electric fans on the market, including standing fans and circulating fans, most rely on motor drives to achieve automatic oscillation.

[0003] Currently, automatic oscillating floor fans on the market typically employ two main oscillation mechanisms: mechanical and electronic. Mechanical fans achieve oscillation by rotating a main motor to drive a gearbox, while electronic fans use an independent synchronous motor to control the oscillation. Although both methods can provide automatic oscillation within a certain angle range, they generally share a common technical limitation—they cannot manually oscillate 360°.

[0004] This limitation stems from the following aspects:

[0005] Limitations of structural design: Traditional fan designs typically include limiting devices to prevent excessive rotation from causing internal wiring tangling or mechanical damage. This makes it impossible to exceed the set maximum oscillation angle (such as 75° or 150°) even when manually operated, let alone achieve 360° omnidirectional rotation.

[0006] Complexity of the transmission mechanism: In order to achieve 360° unobstructed manual oscillation, the internal transmission mechanism of the fan needs to be redesigned to ensure that it can support automatic oscillation driven by the motor, as well as allow users to freely make omnidirectional manual adjustments.

[0007] As consumers demand greater flexibility and versatility from products, fans that cannot manually oscillate 360° may not fully meet the needs of certain user groups, such as those who require precise control of airflow direction. Utility Model Content

[0008] To address the shortcomings and deficiencies of existing technologies, this invention provides a vertical fan oscillation structure that can expand the coverage area of ​​the vertical fan.

[0009] To achieve the above objectives, the present invention provides a vertical fan oscillating head structure, comprising a base, a vertical rod mounted on the base, a fan head assembly mounted on the vertical rod, and an oscillating head assembly mounted on the fan head assembly for driving the fan head assembly to oscillate automatically. It also includes a sleeve fixedly connected to the fan head assembly, a rotating shaft fixed to the sleeve by fasteners, a positioning component, and a connecting pipe movably connected to the rotating shaft. The positioning component is rotatably sleeved on the rotating shaft, and its end face facing the rotating shaft has a limiting structure. The connecting pipe has a limiting groove adapted to the positioning component, and the end face of the positioning component facing the limiting groove has a positioning structure. When the fan head assembly is rotated, the rotating shaft drives the positioning component to rotate synchronously within the limiting groove, and the positioning structure abuts against the inner wall of the limiting groove to achieve stable positioning of the fan head assembly at any angle.

[0010] Furthermore, the limiting structure includes at least one protrusion disposed on the inner periphery of the positioning member and at least one groove disposed on the outer periphery of the rotating shaft. The protrusion is adapted to the groove and abuts against the inner wall of the groove to achieve circumferential fixation between the positioning member and the rotating shaft.

[0011] Furthermore, the positioning structure includes at least one toothed structure disposed on the outer periphery of the positioning member and an internal toothed structure disposed in the limiting groove and meshing with the toothed structure.

[0012] Furthermore, the positioning element is also provided with multiple clearance gaps distributed in a ring.

[0013] Furthermore, the bottom of the rotating shaft is provided with a connecting post, and the top of the connecting tube is provided with a receiving cavity adapted to the connecting post. The connecting post is fixed to the receiving cavity by a locking assembly.

[0014] Furthermore, the locking assembly includes a washer and a screw for locking the rotating shaft within the connecting tube, the washer being disposed between the screw and the rotating shaft.

[0015] Furthermore, the washer is made of any one of metal sheet, plastic, or rubber.

[0016] Furthermore, the positioning element is made of POM material.

[0017] Furthermore, the bottom outer ring of the connecting pipe is provided with a threaded structure, and the top of the upright rod is provided with an internal threaded structure that is compatible with the threaded structure.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a vertical fan oscillating head structure. Through the cooperation between the positioning structure on the positioning component and the limiting groove inside the connecting pipe, the fan head assembly can maintain a stable angle when manually or automatically oscillating to any angle, thanks to the abutment between the positioning structure and the inner wall of the limiting groove, preventing displacement or shaking caused by external forces. Secondly, the positioning component is rotatably fitted onto the rotating shaft and circumferentially fixed to the rotating shaft through the limiting structure, ensuring stable power transmission during rotation. The structure is compact and easy to assemble. This design not only comprehensively considers stability, ease of assembly, and adjustment flexibility, but also significantly improves the product's practicality and user experience through a series of innovative structural designs. In practical applications, this design can effectively improve fan stability and user satisfaction. This vertical fan oscillating head structure is not only simple in structure and low in cost, but also easy to implement and promote. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a vertical fan swing head according to the present invention;

[0021] Figure 2 This utility model relates to an explosion-proof structure for a vertical fan oscillating head. Figure 1 ;

[0022] Figure 3 This utility model relates to an explosion-proof structure for a vertical fan oscillating head. Figure 2 ;

[0023] Figure 4 This is a cross-sectional view of a vertical fan swing head structure according to the present invention;

[0024] Figure 5 This is a cross-sectional view of the connecting pipe in a vertical fan swing head structure according to this utility model;

[0025] Figure 6 This is a schematic diagram of the positioning component in a vertical fan swing head structure according to the present invention. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] This utility model proposes a vertical fan oscillating head structure.

[0030] In the embodiments of this utility model, such as Figure 1-6 As shown, this vertical fan oscillating head structure includes a base 1, a vertical rod 2 mounted on the base 1, a fan head assembly 3 mounted on the vertical rod 2, and an oscillating head assembly 4 mounted on the fan head assembly 3 for driving the fan head assembly 3 to oscillate automatically. It also includes a sleeve 5 fixedly connected to the fan head assembly 3, a rotating shaft 6 fixed to the sleeve 5 by fasteners, a positioning element 7, and a connecting pipe 8 movably connected to the rotating shaft 6. The positioning element 7 is rotatably sleeved on the rotating shaft 6, and the end face of the positioning element 7 facing the rotating shaft 6 is provided with a limiting structure 71. The connecting pipe 8 has a limiting groove 81 adapted to the positioning element 7, and the end face of the positioning element 7 facing the limiting groove 81 is provided with a positioning structure 72. When the fan head assembly 3 is rotated, the rotating shaft 6 drives the positioning element 7 to rotate synchronously within the limiting groove 81, and the positioning structure 72 abuts against the inner wall of the limiting groove 81 to achieve stable positioning of the fan head assembly 3 at any angle.

[0031] In this embodiment, the limiting structure 71 includes at least one protrusion 710 disposed on the inner periphery of the positioning member 7 and at least one groove 61 disposed on the outer periphery of the rotating shaft 6. The protrusion 710 is adapted to the groove 61 and abuts against the inner wall of the groove 61 to achieve circumferential fixation between the positioning member 7 and the rotating shaft 6. This structural design of the outer periphery groove 61 and the inner periphery protrusion 710 can effectively prevent the positioning member 7 from sliding when rotating relative to the rotating shaft 6, ensuring the stability of the entire vertical fan.

[0032] In this embodiment, the positioning structure 72 includes at least one toothed portion 720 structure disposed on the outer periphery of the positioning member 7 and an internal toothed structure 82 disposed in the limiting groove 81 and meshing with the toothed portion 720 structure. Through the toothed portion 720 structure on the outer periphery of the positioning member 7 and the internal toothed structure 82 meshing with the toothed portion 720 structure, this gear meshing method not only realizes the transmission of rotational motion but also provides stable support when the fan head assembly 3 swings to a specified angle, avoiding unnecessary shaking.

[0033] In this embodiment, the positioning member 7 is also provided with a plurality of annularly distributed clearance gaps 73. The purpose of this structural design is to provide elastic rebound space for the toothed structure 720. This allows the positioning member 7 to achieve appropriate elastic deformation through the clearance gaps 73 even when subjected to large external forces during the oscillation of the fan head assembly 3, ensuring the durability and reliability of the device.

[0034] In this embodiment, the bottom of the rotating shaft 6 is provided with a connecting post 62, and the top of the connecting pipe 8 is provided with a receiving cavity adapted to the connecting post 62. The connecting post 62 is fixed to the receiving cavity by a locking assembly. Furthermore, the connecting post 62 at the bottom of the rotating shaft 6 can be inserted into the receiving cavity at the top of the connecting pipe 8 and locked in place by a washer 9 and screws, thereby achieving a stable connection between the rotating shaft 6 and the connecting pipe 8, ensuring a stable and reliable structure. The outer ring at the bottom of the connecting pipe 8 is provided with a threaded structure, which can cooperate with the internal threaded structure at the top of the support rod 2, enabling quick installation and disassembly of the overall structure. Users can freely adjust the fan head angle according to actual needs, significantly improving the airflow coverage and spatial adaptability.

[0035] In this embodiment, the locking assembly includes a washer 9 and a screw for locking the rotating shaft 6 within the connecting tube 8. The washer 9 is disposed between the screw and the rotating shaft 6. The washer 9 is made of any one of metal sheet, plastic, or rubber. The washer 9 is used to enhance locking stability and prevent the rotating shaft 6 from loosening within the connecting tube 8. The material of the washer 9 is selected based on actual application requirements.

[0036] In this embodiment, the positioning element 7 is made of POM material. The preferred material for the positioning element 7 is POM (polyoxymethylene), as it has good wear resistance and self-lubricating properties, making it suitable for applications requiring frequent rotation and friction.

[0037] In this embodiment, the bottom outer ring of the connecting pipe 8 is provided with a threaded structure, and the top of the upright rod 2 is provided with an internal threaded structure that matches the threaded structure. The connecting pipe 8 and the upright rod 2 are detachably connected through threaded engagement, facilitating installation and disassembly.

[0038] Specifically, this application achieves stable positioning of the fan head assembly 3 at any swing angle by setting a linkage positioning structure 72, including a positioning element 7, a rotating shaft 6, a connecting pipe 8 and a limiting groove 81, between the fan head assembly 3 and the standing rod 2.

[0039] By cooperating with the positioning structure 72 on the positioning component 7 and the limiting groove 81 inside the connecting pipe 8, the fan head assembly 3 can maintain a stable angle when manually or automatically swinging to any angle, through the abutment action between the positioning structure 72 and the inner wall of the limiting groove 81, thus avoiding deviation or shaking caused by external force.

[0040] The positioning component 7 is rotatably sleeved on the rotating shaft 6 and is circumferentially fixed to the rotating shaft 6 through the limiting structure 71 (such as the protrusion 710 and the groove 61), ensuring stable power transmission during rotation, with a compact structure and convenient assembly.

[0041] Users can adjust the fan head to any angle as needed, and it will automatically maintain that angle after release, improving the flexibility and comfort of fan use.

[0042] By providing a clearance 73 on the positioning component 7, elastic rebound space is provided for the positioning structure 72 (such as the tooth 720), so that the fan head assembly 3 can be smoothly reset during rotation, avoiding jamming or wear and improving the service life of the overall structure.

[0043] The rotating shaft 6 is connected to the connecting pipe 8 via the connecting column 62 and is locked by the washer 9 and screws. The connecting pipe 8 and the upright pole 2 are detachably connected by a threaded structure, which facilitates installation, disassembly and subsequent maintenance.

[0044] The outer ring of the positioning component 7 has a protruding toothed structure 720, which meshes with the internal toothed structure 82 in the limiting groove 81 inside the connecting pipe 8. Through this meshing structure, the fan head assembly 3 can achieve stable positioning at any angle, improving stability during adjustment and effectively expanding the fan's airflow coverage, thus enhancing usability. During manual adjustment, it provides moderate damping and clear gear feedback, improving the user experience and overall product quality. When adjusting the angle of the fan head assembly 3, the user receives clear positioning feedback, preventing head misalignment and achieving precise and stable airflow adjustment. This design is simple in structure, highly responsive, and effectively improves the product's operational performance and user comfort.

[0045] Furthermore, the positioning component 7 is made of POM (polyoxymethylene) material, which has good wear resistance, self-lubrication, and fatigue resistance. This further enhances the structural stability and service life in applications involving frequent rotation and friction.

[0046] The oscillating head structure for standing fans provided in this application effectively solves the problem of existing technologies being unable to achieve 360° manual oscillation without altering the original automatic oscillation function. It not only features a reasonable structural design and stable transmission but also excellent positioning performance and user experience. Suitable not only for standing electric fans but also for other household appliances with rotatable or adjustable air outlets, such as air coolers, air circulators, heaters, and air purifiers. By applying this structure to different types of household appliances, stable positioning and flexible adjustment of the head assembly at any angle can be achieved, demonstrating good versatility, replaceability, and broad market application prospects.

[0047] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vertical fan oscillating head structure, comprising a base (1), a vertical rod (2) mounted on the base (1), a fan head assembly (3) mounted on the vertical rod (2), and an oscillating head assembly (4) mounted on the fan head assembly (3) for driving the fan head assembly (3) to oscillate automatically, characterized in that, It also includes a sleeve (5) fixedly connected to the fan head assembly (3), a rotating shaft (6) fixed to the sleeve (5) by fasteners, a positioning member (7), and a connecting pipe (8) movably connected to the rotating shaft (6). The positioning member (7) is rotatably sleeved on the rotating shaft (6), and the end face of the positioning member (7) facing the rotating shaft (6) is provided with a limiting structure (71). The connecting pipe (8) is provided with a limiting groove (81) adapted to the positioning member (7), and the end face of the positioning member (7) facing the limiting groove (81) is provided with a positioning structure (72). When the fan head assembly (3) is rotated, the rotating shaft (6) drives the positioning member (7) to rotate synchronously in the limiting groove (81). The positioning structure (72) abuts against the inner wall of the limiting groove (81) to achieve stable positioning of the fan head assembly (3) at any angle.

2. A vertical fan blade structure as claimed in claim 1, wherein, The limiting structure (71) includes at least one protrusion (710) disposed on the inner periphery of the positioning member (7) and at least one groove (61) disposed on the outer periphery of the rotating shaft (6). The protrusion (710) is adapted to the groove (61) and abuts against the inner wall of the groove (61) to achieve circumferential fixation between the positioning member (7) and the rotating shaft (6).

3. A vertical fan blade structure as claimed in claim 2, wherein, The positioning structure (72) includes at least one toothed (720) structure disposed on the outer periphery of the positioning member (7) and an internal toothed structure (82) disposed in the limiting groove (81) and meshing with the toothed (720) structure.

4. A vertical fan blade structure as claimed in claim 3, wherein The positioning element (7) is also provided with a plurality of clearance gaps (73) distributed in a ring.

5. A vertical fan blade structure as claimed in claim 2, wherein, The bottom of the rotating shaft (6) is provided with a connecting post (62), and the top of the connecting pipe (8) is provided with a receiving cavity adapted to the connecting post (62). The connecting post (62) is fixed to the receiving cavity by a locking assembly.

6. A vertical fan blade structure as claimed in claim 5, wherein, The locking assembly includes a washer (9) and a screw for locking the rotating shaft (6) within the connecting tube (8), the washer (9) being disposed between the screw and the rotating shaft (6).

7. The vertical fan oscillating head structure as described in claim 6, characterized in that, The washer (9) is made of any one of metal sheet, plastic or rubber.

8. A vertical fan blade structure as claimed in claim 4, wherein, The positioning component (7) is made of POM material.

9. A vertical fan blade structure as claimed in claim 6, wherein, The bottom outer ring of the connecting pipe (8) is provided with a threaded structure, and the top of the upright rod (2) is provided with an internal threaded structure that is compatible with the threaded structure.

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