Floor fan with folding storage function

Abstract

A floor fan with folding storage function, including base, and respectively connecting in two sides of the base's stand, fan device is installed on the two stand top, the lower end of the stand is provided with folding mechanism and is connected with the base, the folding mechanism includes the support installed in the base inner wall both sides, the support is throughly set up with the rotating hole, a rotating shaft is rotatably connected in the rotating hole, the folding mechanism still includes the drive rod connected with the lower end of the stand, the protruding end face of the rotating shaft one end is provided with outer drive platform, correspondingly, the drive rod is provided with outer drive groove, the outer drive platform and the outer drive groove butt joint, to realize the synchronous rotation connection of the drive rod and the rotating shaft, the beneficial effects of the utility model are: folding mechanism realizes the integrated folding storage of base and stand, significantly simplifies the disassembly process of floor fan, easy and fast operation, saves the cost of disassembly, improves the user's use experience.

Description

Technical Field

[0001] This utility model relates to the technical field of floor fans, specifically a floor fan with folding and storage function. Background Technology

[0002] Floor fans, common cooling appliances in homes and offices, are widely used for their excellent airflow and portability. Traditional floor fans typically use a fixed column structure, resulting in a relatively high overall height. When not in use, especially in winter or for long-term storage, their fixed size occupies considerable storage space. Similarly, to reduce packaging volume and logistics costs, existing floor fans often require disassembling and packaging the fan unit, column, and base separately. This necessitates complex reassembly for first-time use or when reassembling. Users must secure the base and column with screws and other connectors, then install the fan unit on top of the column. This repeated disassembly and reassembly process is not only tedious and time-consuming, increasing the user's burden, but may even present assembly difficulties for users with limited DIY skills. Some manufacturers incorporate height-adjustable storage mechanisms in their floor fans to achieve a degree of storage functionality; however, when the storage mechanism is extended, the column connection may wobble, affecting the overall stability and safety of the floor fan. Especially when the fan is running at high speed, an unstable support column may exacerbate the overall vibration of the floor fan, and even pose a risk of tipping over. Secondly, the storage mechanism is often exposed and has a relatively complex structure, which not only affects the overall aesthetics of the floor fan, but may also accumulate dust over long-term use, making it inconvenient for users to clean and maintain. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a floor fan with a simple structure, low manufacturing cost, integrated folding and storage, simplified disassembly and assembly, convenient and easy operation, stable and reliable locking, improved safety and user experience, and enhanced overall appearance.

[0004] The purpose of this utility model is achieved in the following way: a floor fan with folding and storage function, including a base and columns respectively connected to both sides of the base, a fan device installed above the two columns, a folding mechanism provided at the lower end of the columns and connected to the base, the folding mechanism including brackets installed on both sides of the inner wall of the base, the brackets having through holes, and a rotating shaft rotatably connected to the holes; the folding mechanism also includes a drive rod connected to the lower end of the columns, one end of the rotating shaft having an external drive platform, correspondingly, the drive rod having an external drive groove, the external drive platform docking with the external drive groove to achieve synchronous rotational connection between the drive rod and the rotating shaft; the folding mechanism also includes a rotating cover, the other end of the rotating shaft protruding An inner drive platform is provided on the end face, and correspondingly, an inner drive groove is provided inside the rotating cover. The inner drive platform is connected to the inner drive groove to achieve synchronous rotation connection between the rotating cover and the rotating shaft. A movable groove is recessed on the side of the bracket near the rotating cover, and a locking ball is accommodated in the movable groove. A locking spring is provided between the locking ball and the movable groove, and the locking spring pushes the locking ball towards the rotating cover. A positioning piece is installed on the side of the rotating cover opposite to the rotating shaft. The positioning piece is provided with a storage groove and an unfolding groove for locking the locking ball. The two side columns rotate synchronously, and the rotating cover and the positioning piece rotate synchronously through the drive rod and the rotating shaft. The locking ball is locked into the storage groove or the unfolding groove, thereby realizing the locking of the floor fan in the stored or unfolded state.

[0005] The positioning piece is provided with two storage slots and two unfolding slots, and the storage slots and unfolding slots are distributed perpendicularly.

[0006] The unfolding groove is provided with an adjustment groove on the side that is biased towards the storage groove.

[0007] The storage slot, the unfolding slot, and the adjustment slot are elongated slots.

[0008] The positioning piece has several locking platforms protruding on the side opposite to the rotating cover. The rotating cover has a locking groove, and the locking platforms are inserted into the locking groove to connect the positioning piece and the rotating cover into one unit.

[0009] The rotating shaft protrusion is provided with a locking post, and the locking screw passes through the locking hole of the rotating cover in sequence and is screwed to the locking post to lock the relative position between the rotating shaft and the rotating cover.

[0010] The outer cylindrical surface of the inner end of the bracket is recessed and a limiting groove is provided. The outer periphery of the rotating cover is extended and a limiting plate is provided. The limiting plate is locked in the limiting groove and slides along the limiting groove.

[0011] The outer end of the bracket extends with a sleeve, and a connecting groove is formed on the outer periphery of the sleeve. An adjusting sleeve is fitted over the sleeve and accommodated in the connecting groove.

[0012] A connecting sleeve is provided on the inner side of the lower end of the drive rod extending towards the base. The connecting sleeve is sleeved on the outside of the sleeve and is engaged with the adjusting sleeve. The outer drive groove is located in the connecting sleeve.

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

[0014] 2. The folding mechanism enables the base and column to be folded and stored in one piece, which significantly simplifies the disassembly and assembly process of the floor fan. It is easy and quick to operate, saves disassembly and assembly costs, and improves the user experience.

[0015] 3. The locking ball and positioning plate are set to lock the state, and the structure is stable and reliable, ensuring that the unfolded and stored states are firmly locked, thus guaranteeing the user's safety.

[0016] 4. The folding mechanism is placed inside the base and column to avoid exposure, thus improving the overall aesthetics and neatness of the floor fan. Attached Figure Description

[0017] Figure 1 This is a rendering of the final assembly of this utility model.

[0018] Figure 2 This is an exploded view of the drive rod and base in this utility model.

[0019] Figure 3 This is an exploded view of the structure of the bracket and the base in this utility model.

[0020] Figure 4 This is a cross-sectional view of the folding mechanism in this utility model.

[0021] Figure 5 This is an exploded view of the folding mechanism in this utility model.

[0022] Figure 6 This is an exploded view of the folding mechanism in this utility model. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. A floor fan with folding and storage function includes a base 1 and columns 10 respectively connected to both sides of the base 1. A fan device is installed above the two columns 10. The lower end of each column 10 is provided with a folding mechanism connected to the base 1. The folding mechanism includes brackets 2 installed on both sides of the inner wall of the base 1. Each bracket 2 has a through hole 21, and a rotating shaft 3 is rotatably connected to the through hole 21. The folding mechanism also includes a drive rod 4 connected to the lower end of the column 10. One end of the rotating shaft 3 has an outer drive platform 31. Correspondingly, the drive rod 4 has an outer drive groove 41. The outer drive platform 31 is connected to the outer drive groove 41 to achieve synchronous rotational connection between the drive rod 4 and the rotating shaft 3. The folding mechanism also includes a rotating cover 5. The other end of the rotating shaft 3 has an inner drive platform 32. The rotating cover 5 has an inner drive groove 51, and the inner drive platform 32 is connected to the inner drive groove 51 to achieve synchronous rotation connection between the rotating cover 5 and the rotating shaft 3. The bracket 2 has a recessed movable groove 22 on the side near the rotating cover 5, and a locking ball 6 is housed in the movable groove 22. A locking spring 61 is provided between the locking ball 6 and the movable groove 22, and the locking spring 61 pushes the locking ball 6 towards the rotating cover 5. A positioning piece 7 is installed on the side of the rotating cover 5 opposite to the rotating shaft 3. The positioning piece 7 is provided with a storage groove 71 and an unfolding groove 72 for locking the locking ball 6. The two side columns 10 rotate synchronously, and the rotating cover 5 and the positioning piece 7 rotate synchronously through the drive rod 4 and the rotating shaft 3. The locking ball 6 is locked into the storage groove 71 or the unfolding groove 72, thereby realizing the locking of the floor fan in the storage or unfolding state.

[0024] In the structure of the floor fan, a folding mechanism is located below the two uprights and connects to the base. The fan is mounted above the two uprights. The folding mechanism enables the uprights to rotate, allowing the floor fan to switch between an unfolded and folded state. The folding mechanism includes brackets connected to both sides of the inner wall of the base, with a rotating shaft rotatably connected to a hole in one of the brackets. An external drive platform is located on the protruding end face of one end of the shaft, and a drive rod with an external drive groove is connected to the lower end of the upright. The external drive platform and the external drive groove are mated together, enabling synchronous rotation between the drive rod and the shaft. An internal drive platform is located on the protruding end face of the other end of the shaft, and an internal drive groove is located in the rotating cover, mating with the internal drive platform to enable synchronous rotation between the rotating cover and the shaft. When the user rotates the uprights, the drive rod transmits the rotational force to the shaft, causing it to rotate synchronously, simultaneously rotating the rotating cover.

[0025] Furthermore, a recessed groove is provided on the side of the bracket near the rotating cover, and a locking ball and a locking spring are installed in this groove. The locking spring always pushes the locking ball out towards the rotating cover. To lock the pedestal fan in its unfolded and folded state, a positioning plate is installed on the side of the rotating cover opposite the pivot. This positioning plate is fixedly connected to the rotating cover, and a folding groove and an unfolding groove are provided through the positioning plate in its body. When the user rotates the column, the bracket is stationary relative to the positioning plate. The positioning plate rotates synchronously with the rotating cover. When it rotates to the unfolding groove position, the locking ball is precisely engaged in the unfolding groove under the pushing force of the locking spring, thus firmly locking the column in the unfolded state. At this time, the column and the base are vertically distributed, avoiding the assembly steps required by traditional pedestal fans, saving users' operating costs and making it convenient to use. Similarly, when rotated to the storage slot position, the locking ball will precisely engage with the slot under the force of the locking spring, firmly locking the column in the folded state. At this point, the column is parallel to the base, forming a compact unit. Users can package, transport, or store the fan without any disassembly, maximizing space utilization. The folding mechanism allows the floor fan to be folded and unfolded directly on the base without disassembling any parts, significantly simplifying packaging, transportation, and assembly. Users do not need any professional tools during assembly or disassembly; simply pulling the column switches between the folded and unfolded states, enhancing the user experience. Furthermore, the mechanical locking ball ensures the column's stability in both folded and unfolded states, effectively preventing accidental shaking or loosening, improving the floor fan's safety, durability, and reliability. The folding mechanism is also located inside the base and column, avoiding exposure and enhancing the overall aesthetics and neatness of the floor fan.

[0026] The positioning piece 7 is provided with two storage slots 71 and two unfolding slots 72, which are perpendicularly distributed. There are two storage slots and two unfolding slots, arranged perpendicularly at 90° to the rotation direction, thus providing multiple locking points. This ensures that the locking ball can find the corresponding slot for position locking at different rotation angles of the column. Even if one slot deviates due to wear, other slots can still provide stable locking, achieving more precise positioning.

[0027] An adjustment groove 73 is provided on the side of the unfolding groove 72 that is biased towards the storage groove 71. This adjustment groove allows the locking bead to move from the unfolding groove to the adjustment groove when the user needs to fine-tune the unfolding angle, or to provide additional cushioning or more precise positioning in the unfolded state. This allows for slight displacement of the column in the unfolded state without disengaging the lock, adapting to different user needs and providing more precise adjustment functions, thus increasing the flexibility of the floor fan.

[0028] The storage slot 71, the unfolding slot 72, and the adjustment slot 73 are elongated slots. The elongated shape, with its longer length and narrower width, allows the locking ball to slide within a limited range. Even with slight misalignment of the pivot point, it can still smoothly engage and provide a locking function, offering more precise adjustments. Furthermore, the limited sliding of the locking ball can absorb external impacts to some extent, reducing wear on the folding mechanism, preventing excessive local stress, and extending its service life.

[0029] The positioning piece 7 has several locking platforms 74 protruding from the side opposite the rotating cover 5. The rotating cover 5 has locking grooves 54, and the locking platforms 74 are inserted into the locking grooves 54 to connect the positioning piece 7 and the rotating cover 5 as a whole. To achieve the integrated connection between the positioning piece and the rotating cover, locking platforms are protruding from the side of the positioning piece opposite the rotating cover, and corresponding to the positions of the locking platforms, locking grooves are provided on the rotating cover. The locking platforms and locking grooves are inserted into each other, forming a tight snap-fit, ensuring that the positioning piece and the rotating cover rotate synchronously without relative displacement, thereby ensuring the accuracy of locking. The insertion method not only reduces the number of parts and lowers manufacturing costs, but also eliminates the need for additional fasteners such as screws. The assembly of the positioning piece and the rotating cover is quicker and more convenient, thus ensuring the accuracy and stability of locking.

[0030] The rotating shaft 3 has a protruding locking post 33. A locking screw passes through the locking hole 52 of the rotating cover 5 and is screwed onto the locking post 33, locking the relative position between the rotating shaft 3 and the rotating cover 5. After the locking post on the rotating shaft is aligned with the locking hole of the rotating cover, the two are screwed together by the locking screw. The tightening action of the locking screw generates axial pressure, ensuring reliable fixation between the rotating shaft and the rotating cover, eliminating any gaps or looseness between them, ensuring they remain synchronized during rotation, preventing relative displacement, and ensuring a tight connection, thus guaranteeing accuracy and stability during rotational transmission.

[0031] The bracket 2 has a recessed groove 23 on its inner end outer cylindrical surface, and a limiting plate 53 extends from the outer periphery of the rotating cover 5. The limiting plate 53 is engaged in the limiting groove 23 and slides along the groove. The limiting groove on the bracket engages with the limiting plate extending from the rotating cover, allowing the limiting plate to slide within the groove. When the rotating cover rotates, the limiting plate slides within the groove, limiting the rotation range of the rotating cover and preventing it from exceeding the preset unfolding or retracting angle, thus avoiding damage to components that may be caused by excessive rotation. Furthermore, the engagement of the limiting plate and the limiting groove provides additional support and guidance for the rotating cover during rotation, reducing swaying and increasing rotational stability.

[0032] A sleeve 24 extends from the outer end of the bracket 2, and a connecting groove 25 is formed on the outer periphery of the sleeve 24. An adjusting sleeve 8 is fitted over the sleeve 24 and accommodated in the connecting groove 25. The sleeve extending from the outer end of the bracket, with a connecting groove on its outer periphery for accommodating the adjusting sleeve, provides a precise interface for other components. This connecting component is integrated into the extended portion of the bracket, making the entire folding mechanism more compact. The adjusting sleeve provides some adjustment space for external connections, allowing users to select the appropriate size adjusting sleeve for installation based on the connecting component. It also provides some protection and cushioning for internal components.

[0033] A connecting sleeve 42 extends from the lower inner side of the drive rod 4 towards the base 1. The connecting sleeve 42 is fitted over the sleeve 24 and is engaged with the adjusting sleeve 8. The outer drive groove 41 is located within the connecting sleeve 42. The connecting sleeve extending from the drive rod and fitting into the sleeve ensures a secure connection of the drive rod. The outer drive groove, located within the connecting sleeve, ensures the robustness and precision of the rotational transmission between the drive rod and the rotating shaft, reducing transmission backlash.

[0034] In summary: When a user needs to store the floor fan, they rotate the upright column, causing the drive rod at the bottom of the column to rotate synchronously. The drive rod is coaxially connected to the rotating shaft of the folding mechanism, so the rotation of the upright column drives the rotating shaft to rotate as well. The rotating shaft then transmits this rotational force to the positioning plate through the rotating cover. The rotating shaft is the core component of the folding mechanism. The outer drive groove of the drive rod mates with the outer drive platform of the rotating shaft, and the inner drive groove of the rotating cover mates with the inner drive platform of the rotating shaft, thus effectively connecting the three components as a whole. The positioning plate is clamped between the bracket and the rotating cover and is inserted and fixed to the rotating cover. Therefore, when the rotating cover rotates, it synchronously drives the positioning plate to rotate.

[0035] It should be noted that when the user rotates the upright column, the bracket remains stationary relative to the positioning plate. The positioning plate rotates synchronously with the rotating cover. When it rotates to the unfolding slot of the positioning plate, the locking ball, under the push of the locking spring, precisely engages into the unfolding slot, thus firmly locking the upright column in the unfolded state. At this point, the upright column and the base are perpendicular, eliminating the assembly steps required by traditional floor fans, saving users operating costs and providing convenience. Similarly, when rotated to the storage slot of the positioning plate, the locking ball, also under the push of the locking spring, precisely engages into the storage slot, thus firmly locking the upright column in the stored state. At this point, the upright column is parallel to the base, forming a compact unit. Users can package, transport, or store the unit without any disassembly, improving space utilization.

[0036] The base and column can be folded together for storage using the folding mechanism. The floor fan can be stored and unfolded directly on the base without disassembling any parts. The operation is simple and quick, which significantly simplifies the product packaging, transportation and user assembly process, reduces transportation costs and reduces the risk of parts wear or loss due to repeated disassembly and assembly.

[0037] The design incorporates a locking bead and a positioning plate to ensure the floor fan remains securely in place when unfolded and folded. Even when the floor fan is operating at high speed, it effectively prevents the column from shaking or accidentally folding, thus guaranteeing the overall operational stability and safety of the floor fan. Therefore, it can be widely adopted.

[0038] 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 floor fan with folding and storage function, comprising a base (1) and uprights (10) respectively connected to both sides of the base (1), wherein a fan device is installed above the two uprights (10), characterized in that: The lower end of the column (10) is provided with a folding mechanism connected to the base (1). The folding mechanism includes a bracket (2) installed on both sides of the inner wall of the base (1). The bracket (2) has a through hole (21) and a rotating shaft (3) is rotatably connected to the through hole (21). The folding mechanism also includes a drive rod (4) connected to the lower end of the column (10). One end of the rotating shaft (3) has an external drive platform (31) on its protruding end face. Correspondingly, an external drive groove (41) is provided inside the drive rod (4). The external drive platform (31) is connected to the external drive groove (41) to realize the synchronous rotation connection between the drive rod (4) and the rotating shaft (3). The folding mechanism also includes a rotating cover (5), and an inner drive platform (32) is provided on the protruding end face of the other end of the rotating shaft (3). Correspondingly, an inner drive groove (51) is provided inside the rotating cover (5). The inner drive platform (32) is connected to the inner drive groove (51) to realize the synchronous rotation connection between the rotating cover (5) and the rotating shaft (3). The bracket (2) has a recessed groove (22) on the side near the rotating cover (5). A locking ball (6) is housed in the groove (22). A locking spring (61) is provided between the locking ball (6) and the groove (22). The locking spring (61) pushes the locking ball (6) toward the rotating cover (5). A positioning piece (7) is installed on the side of the rotating cover (5) opposite to the rotating shaft (3). The positioning piece (7) is provided with a storage groove (71) and an unfolding groove (72) for locking the locking ball (6). The two side columns (10) rotate synchronously, and the drive rod (4) and the rotating shaft (3) drive the rotating cover (5) and the positioning piece (7) to rotate synchronously. The locking bead (6) is snapped into the storage slot (71) or the unfolding slot (72), thereby realizing the locking of the storage or unfolding state of the floor fan.

2. A floor fan with folding and storage function according to claim 1, characterized in that: The positioning piece (7) is provided with two storage slots (71) and two unfolding slots (72), and the storage slots (71) and the unfolding slots (72) are vertically distributed.

3. A floor fan with folding and storage function according to claim 2, characterized in that: The unfolding groove (72) is provided with an adjustment groove (73) on the side biased towards the storage groove (71).

4. A floor fan with folding and storage function according to claim 3, characterized in that: The storage slot (71), the unfolding slot (72) and the adjustment slot (73) are elongated slots.

5. A floor fan with folding and storage function according to claim 1, characterized in that: The positioning piece (7) has several locking platforms (74) protruding on one side of the rotating cover (5). The rotating cover (5) has a locking groove (54). The locking platform (74) is inserted into the locking groove (54) to connect the positioning piece (7) and the rotating cover (5) into one unit.

6. A floor fan with folding and storage function according to claim 1, characterized in that: The rotating shaft (3) has a protruding locking post (33). The locking screw passes through the locking hole (52) of the rotating cover (5) and is screwed to the locking post (33) to lock the relative position between the rotating shaft (3) and the rotating cover (5).

7. A floor fan with folding and storage function according to claim 1, characterized in that: The outer cylindrical surface of the inner end of the bracket (2) is recessed and a limiting groove (23) is provided. The outer periphery of the rotating cover (5) is extended and a limiting plate (53) is provided. The limiting plate (53) is inserted into the limiting groove (23) and slides along the limiting groove (23).

8. A floor fan with folding and storage function according to claim 1, characterized in that: The outer end of the bracket (2) is provided with a sleeve (24), and a connecting groove (25) is formed on the outer periphery of the sleeve (24). An adjusting sleeve (8) is fitted on the outside of the sleeve (24) and accommodated in the connecting groove (25).

9. A floor fan with folding and storage function according to claim 8, characterized in that: A connecting sleeve (42) is provided on the inner side of the lower end of the drive rod (4) extending towards the base (1). The connecting sleeve (42) is sleeved on the outside of the sleeve (24), and the connecting sleeve (42) is engaged with the adjusting sleeve (8). The outer drive groove (41) is located in the connecting sleeve (42).

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