A floor fan support column

Abstract

A floor fan support column, comprising a vertical rod, a mounting seat is arranged at the bottom of the vertical rod, a limiting boss is formed by punching the upper end of the mounting seat upward, an accommodating space is defined by the inner side wall of the limiting boss and the upper end of the mounting seat, the bottom of the vertical rod is sleeved in the accommodating space, and the outer column surface of the vertical rod is welded with the inner side wall or the top of the limiting boss; a reinforcing seat is arranged at the bottom of the inner hole of the vertical rod, and the outer column surface of the reinforcing seat is supported on the inner hole of the vertical rod. The mounting seat is arranged, the limiting boss formed by the mounting seat is used for pre-positioning and mounting the vertical rod, and then the mounting seat is connected with the vertical rod by welding, so that the connection strength and the connection reliability of the vertical rod are improved, the long-term firmness and reliability of the connection are ensured, loosening and damage are avoided, the service life is prolonged, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, specifically a support column for a floor fan. Background Technology

[0002] Floor fans, a common household appliance, typically consist of a base, support pole, motor, and fan head. The support pole is a crucial structural component connecting the base and fan head; its stability, strength, and connection method directly impact the overall performance, lifespan, and manufacturing cost of the product. As market demands for cost control increase, the material thickness of the support pole tends to decrease. When the pole wall is thin, directly tapping the bottom to create a threaded hole can result in insufficient effective thread turns or material damage during threading, significantly reducing the strength and load-bearing capacity of the threaded connection. During daily use, frequent swaying, moving, or accidental collisions can easily cause the threaded connection on the thin-walled pole to loosen, strip, or even break, leading to an unstable connection between the pole and base. This affects the overall stability and lifespan of the fan, and in severe cases, may cause the fan to tip over and break. Therefore, further improvements are necessary. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a floor fan support column that is simple in structure, low in manufacturing cost, designed with a mounting base for connecting and installing the upright, has high connection strength, is easy to install, has strong overall rigidity and stability, and is highly safe.

[0004] The purpose of this utility model is achieved in the following way: a floor fan support column includes a pole, a mounting base is provided at the bottom of the pole, a limiting boss is stamped upward on the upper end face of the mounting base, the inner side wall of the limiting boss and the upper end face of the mounting base together define a receiving space, the bottom of the pole is fitted into the receiving space, and the outer cylindrical surface of the pole is welded and fixed to the inner side wall or top of the limiting boss.

[0005] A reinforcing seat is installed at the bottom of the inner hole of the upright, and the outer cylindrical surface of the reinforcing seat is supported on the inner hole of the upright.

[0006] The reinforcing seat and the inner hole of the upright are connected by an interference fit.

[0007] The upper or lower end face of the reinforcing seat has a reinforcing ring extending towards its central hole.

[0008] The reinforcing seat and reinforcing ring are integrally formed by stamping metal tubing.

[0009] The reinforcing base and the inner hole of the upright are welded together to form a whole.

[0010] The mounting base has a mating platform formed by downward stamping in the middle, and the lower end face of the mating platform is lower than the end face of the mounting base.

[0011] The center point of the docking platform is provided with a mounting hole.

[0012] The mounting base has a ring array of locking holes.

[0013] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0014] 2. An installation base is set up, and the limiting boss formed by its body is used to pre-position and install the upright. Then, it is connected into one piece by welding, which significantly improves the connection strength and reliability of the upright, ensures that the connection is firm and reliable for a long time, avoids loosening and damage, extends service life, and improves safety.

[0015] 3. A reinforcing seat is installed inside the upright, and an interference fit connection is used to ensure a tight and firm connection, thereby improving the rigidity and stability of the entire support column. Attached Figure Description

[0016] Figure 1 This is a rendering of the final assembly of this utility model.

[0017] Figure 2 This is a cross-sectional view of the installation of the central pole in this utility model.

[0018] Figure 3 This is an exploded view of the structure of the upright pole and mounting base of this utility model.

[0019] Figure 4 This is a schematic diagram of the mounting base in this utility model. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings. A floor fan support column includes a vertical pole 1, a mounting base 2 at the bottom of the vertical pole 1, a limiting boss 21 stamped upward on the upper end face of the mounting base 2, the inner side wall of the limiting boss 21 and the upper end face of the mounting base 2 together defining an accommodating space, the bottom of the vertical pole 1 being fitted into the accommodating space, and the outer cylindrical surface of the vertical pole 1 being welded and fixed to the inner side wall or top of the limiting boss 21.

[0021] A reinforcing seat 3 is installed at the bottom of the inner hole 11 of the upright 1, and the outer cylindrical surface of the reinforcing seat 3 is supported on the inner hole 11 of the upright 1.

[0022] In the support column structure of the floor fan, a mounting base is provided at the bottom of the upright. A limiting boss is stamped upwards from the upper end of the mounting base. The inner wall of the limiting boss and the upper end of the mounting base together define a receiving space for inserting the upright. The inner wall of the limiting boss and the upper end of the mounting base provide preliminary three-dimensional positioning and support for the bottom of the upright. The pre-fitting structure ensures the correct position of the upright in the mounting base and can withstand a certain vertical load by pre-fitting the upright to the inner wall of the limiting boss, or by welding the bottom of the upright to the top of the limiting boss. This creates a strong, integrated connection between the upright and the mounting base. Compared to traditional bolt connections, this welding method avoids the problem of strength reduction caused by tapping on thin-walled uprights. The continuity of the weld provides a larger connection area or connection line length, effectively dispersing stress and thus greatly improving the tensile, bending, and torsional resistance between the upright and the mounting base. Even with a thinner support pole material, the long-term reliability of the connection is guaranteed, effectively preventing the fan from loosening and being damaged due to shaking or uneven force during long-term use, and significantly enhancing the product's durability.

[0023] Furthermore, a reinforcing seat is installed in the inner hole of the upright, and the outer cylindrical surface of the reinforcing seat can support the inner hole of the upright. The reinforcing seat provides additional radial and axial support to the bottom of the upright, enhancing the overall rigidity and deformation resistance of the bottom of the upright. Especially when the upright wall thickness is thin, it can effectively prevent the upright from buckling or deforming due to stress concentration at the connection, further improving the stability and load-bearing capacity of the support column.

[0024] The reinforcing seat 3 and the inner hole 11 of the upright 1 are connected by an interference fit. During the manufacturing process of the reinforcing seat, the outer diameter of the reinforcing seat is made slightly larger than the inner diameter of the upright's inner hole. A tight interference fit is achieved through processes such as pressing the reinforcing seat in, cold expansion, or heat shrinkage. This interference fit creates radial pressure between the reinforcing seat and the upright's inner hole, forming a strong frictional connection that allows for reliable fixation without additional fasteners or welding. The interference fit not only provides stable internal support for the upright, effectively preventing radial deformation at the bottom of the upright, but also simplifies the assembly process, reduces production costs, and maintains good connection strength.

[0025] A reinforcing ring 31 extends from the upper or lower end face of the reinforcing seat 3 towards its central hole. This reinforcing ring, extending from the upper or lower end face of the reinforcing seat body towards the central hole, further enhances the local structural strength of the reinforcing seat. Especially in areas where the reinforcing seat is under stress or needs to cooperate with other components, it effectively disperses stress, preventing stress concentration that could lead to deformation or damage. The design of the reinforcing ring not only improves the rigidity of the area where the reinforcing seat meets the inner hole of the upright, making the entire support system more robust and durable, but also maintains good structural stability even under complex stress environments.

[0026] The reinforcing seat 3 and reinforcing ring 31 are integrally formed by stamping metal tubing. This integral forming of the reinforcing seat and reinforcing ring creates a complete, seamless structure, avoiding errors and connection strength issues that may arise from assembling multiple parts, thus ensuring product precision and reliability. Stamping is a highly efficient and low-cost metal processing technology, especially suitable for mass production. Using this process can significantly reduce manufacturing costs and improve production efficiency, while ensuring product consistency and quality stability.

[0027] The reinforcing seat 3 is welded and fixed to the inner hole 11 of the upright 1 to form a whole. By welding, the reinforcing seat and the upright are fixed into a whole, forming a permanent and non-removable integral structure. This provides a high-strength connection and rigidity, capable of withstanding greater impact and vibration loads, ensuring the absolute stability of the reinforcing seat in the inner hole of the upright, and completely eliminating the possibility of loosening or falling off. Together, they provide the entire floor fan support column with ultimate strength and durability, ensuring long-term stable operation of the fan even under extreme usage conditions, greatly improving the safety and reliability of the product.

[0028] The mounting base 2 has a mating platform 22 formed by pressing downwards in the middle, with the lower end face of the mating platform 22 being lower than the end face of the mounting base 2. This mating platform enriches the bottom structure of the mounting base. When the lower end face of the mating platform is lower than the end face of the mounting base, it can be easily aligned and connected to the floor fan base or the ground. The mating platform can serve as a positioning reference for connecting the fan base to the support column, or it can directly contact the ground to provide additional support points, simplifying the subsequent assembly process and improving assembly efficiency. Simultaneously, the presence of the mating platform increases the contact area between the mounting base and the base or ground, enhancing overall stability and anti-tipping ability.

[0029] A mounting hole 23 is provided at the center point of the docking platform 22. This mounting hole at the center of the docking platform provides a convenient installation interface for the final connection of the support column of the floor fan to the base or pedestal. This mounting hole allows bolts, screws, or other fasteners to pass through, securely fixing the support column to the fan base. The mounting hole at the center point ensures precise positioning of the connection, avoiding assembly deviations. This not only facilitates efficient assembly on the production line but also makes disassembly or maintenance more convenient for users, further improving the product's usability.

[0030] The mounting base 2 has a ring-shaped array of locking holes 24. These locking holes can be used to insert locating pins, screws, or other locking components to assist in fixing the upright or fan base. This array-shaped hole design provides multi-point fixation, enhancing the connection's strength and anti-rotation capability. The locking holes can mate with corresponding structures on the base, further improving the overall stability of the support column and preventing unnecessary shaking of the fan during operation. Simultaneously, the universal hole design provides good compatibility with bases of different models or designs, facilitating standardized and modular product production.

[0031] In summary, the connection between the upright and the mounting base cleverly utilizes the space defined by the limiting boss formed by the stamping of the mounting base to achieve precise fitting and initial physical positioning of the bottom of the upright, providing a stable support foundation and distributing the stress on the bottom of the upright. Subsequently, the upright and the mounting base are welded together to form an inseparable whole. This welded connection completely avoids the damage and strength reduction to the thin-walled upright threads caused by traditional bolt connections, elevating the connection strength from localized stress to a large-area continuous bond, thus providing excellent tensile, bending, and torsional resistance. Even with a thin upright material, the connection to the base remains firmly and reliably secured over a long period, significantly improving the product's durability and safety.

[0032] Secondly, by installing a reinforcing seat at the bottom of the upright's inner hole, additional internal support is provided for the vulnerable areas of the upright. The outer cylindrical surface of the reinforcing seat tightly supports the inner wall of the upright, effectively enhancing the compressive and deformation resistance of the upright's bottom. Whether the reinforcing seat and the upright's inner hole are fitted with an interference fit to achieve radial stability without fasteners, or welded together to form an extremely robust integrated structure, the overall rigidity and stability of the upright are further strengthened, ensuring that the support column does not deform or fail during long-term use. Furthermore, the reinforcing ring extending from the reinforcing seat can further enhance local strength and support efficiency. By optimizing the structure of the mounting base, the mounting body is stamped downward to form a mating platform and its central mounting hole, as well as a ring-shaped array of locking holes, making the installation of the entire support column and its connection with the fan base more convenient, precise, and stable, greatly improving production efficiency and assembly quality, and therefore allowing for widespread use.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A support column for a floor fan, characterized in that: The device includes a pole (1), a mounting base (2) is provided at the bottom of the pole (1), and a limiting boss (21) is formed by stamping the upper end face of the mounting base (2) upward. The inner side wall of the limiting boss (21) and the upper end face of the mounting base (2) together define a receiving space. The bottom of the pole (1) is fitted into the receiving space. The outer cylindrical surface of the pole (1) is welded and fixed to the inner side wall or top of the limiting boss (21). A reinforcing seat (3) is installed at the bottom of the inner hole (11) of the upright (1), and the outer cylindrical surface of the reinforcing seat (3) is supported on the inner hole (11) of the upright (1).

2. The floor fan support column according to claim 1, characterized in that: The reinforcing seat (3) and the inner hole (11) of the upright (1) are connected by an interference fit.

3. A floor fan support column according to claim 1, characterized in that: The upper or lower end face of the reinforcing seat (3) has a reinforcing ring (31) extending towards its central hole.

4. A floor fan support column according to claim 3, characterized in that: The reinforcing seat (3) and the reinforcing ring (31) are integrally formed by stamping metal tubing.

5. A floor fan support column according to any one of claims 1-4, characterized in that: The reinforcing seat (3) and the inner hole (11) of the upright (1) are welded and fixed together as a whole.

6. A floor fan support column according to claim 1, characterized in that: The mounting base (2) has a mating platform (22) formed by pressing downward in the middle, and the lower end face of the mating platform (22) is lower than the end face of the mounting base (2).

7. A floor fan support column according to claim 6, characterized in that: The center point of the docking platform (22) is provided with a mounting hole (23).

8. A floor fan support column according to claim 1, characterized in that: The mounting base (2) has a number of locking holes (24) arranged in a ring array.

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