A magnetic bandage fan

Abstract

The utility model discloses a bandage formula magnetic attraction fan, including fan main part and with the support structure of connecting portion and base. Its innovation lies in, the support structure is equipped with magnetic attraction component, and has the restraint piece and bandage structure of integration. Through the coordination of magnetic attraction fixed and bandage winding fixed, the utility model has realized the extensive adaptation and stable installation of fan under the metal surface, irregular curved surface and dynamic environment, has effectively expanded the application scene of portable fan, possesses the beneficial effect of satisfying the increasing demand of user to convenience and multifunctionality.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and in particular to a strap-type magnetic suction fan. Background Technology

[0002] Portable fans, widely used cooling devices in daily life, are favored by users for their compact size and portability. As application scenarios continue to expand, users not only expect multi-angle airflow but also demand convenient and stable operation in various usage situations, such as handheld, desktop placement, or clipped to strollers or vehicles, truly freeing up their hands and meeting diverse needs. However, existing portable fans still have significant limitations in achieving flexible application across multiple scenarios, especially in maintaining a simple structure while struggling to adapt to various complex usage environments.

[0003] In existing technologies, clamping or suspension are the mainstream solutions to expand application scenarios. For example, Chinese patent CN222436629U discloses a portable fan that is clamped to fixed parts such as umbrella poles and stroller rails using a rotating clamp assembly, and the airflow angle of the fan head is adjusted using a rotating rod assembly with a pitch axis. Specifically, the structure includes a fan head assembly, a column assembly, and a rotating clamp assembly. The fan head assembly is connected to the top of the column via the rotating rod assembly, and pitch adjustment is achieved via the pitch axis. The rotating clamp assembly is connected to the bottom of the column via a rotating shaft, allowing the fan to be rotated and positioned. While this solution achieves angle adjustment and hands-free operation to some extent, its applicability is highly dependent on the shape and size of the object being clamped, making it suitable only for standard-sized horizontal bar structures. It is difficult to adapt to irregular curved surfaces or dynamic environments. Furthermore, this clamping structure relies on a combination of multiple components such as torsion springs, shaft pins, and silicone sleeves to achieve fixation and damping. Not only is the structure complex, but frequent adjustments can also lead to decreased clamping stability due to component wear, thus limiting its reliable application in a wider range of scenarios.

[0004] In summary, existing technologies rely on fixed clamping or suspension structures and lack universal adaptability to diverse usage environments, making it difficult for portable fans to expand their applicable scenarios and meet users' growing demands for convenience and multifunctionality. Utility Model Content

[0005] The main purpose of this invention is to propose a strap-type magnetic fan, which aims to solve the technical problem that existing technologies have difficulties in expanding applicable scenarios and cannot meet users' growing demands for convenience and multifunctionality.

[0006] To achieve the above objectives, this utility model proposes a strap-type magnetic suction fan, including...

[0007] A strap-type magnetic fan includes a fan body and a support structure. The fan body includes a drive unit, fan blades, and a fan cover. The drive unit is driven to the fan blades and is installed inside the fan cover. The support structure includes a connecting part and a base. The connecting part is configured to mount the fan body, and the base is configured to support the bottom of the fan body. The support structure is provided with a magnetic component, which is at least partially mounted on the surface of the support structure. The support structure is also provided with a binding member and a strap structure. The strap structure is configured to be fixed by the binding member after being wrapped around an external contact object, thereby cooperating with the magnetic component to fix the position of the fan body.

[0008] Furthermore, the magnetic attraction component is located inside the base and is at least partially exposed from the lower surface of the base, while the restraint component and strap structure are independently located on different sides of the base.

[0009] Furthermore, the magnetic component is fixedly connected to an anti-slip pad, which is configured to provide static friction to the magnetic component in the direction parallel to the contact surface; a mounting chamber is provided below the base, which is configured to accommodate the magnetic component and the anti-slip pad, with the anti-slip pad located on the outer contour of the magnetic component and abutting against the inner wall of the mounting chamber.

[0010] Furthermore, the base includes an upper body and a lower body, which are rotatably connected. The magnetic component has a through-hole in the middle, through which a rotating shaft connects the upper body, the magnetic component, and the lower body in series and allows the three to rotate relative to each other.

[0011] Furthermore, the restraint component includes a wrapping portion and a first fixing portion, which are independently located in different directions on the side of the base. The wrapping portion is configured to tighten the strap structure, while the first fixing portion is configured to fix the strap structure after it has been tightened by the wrapping portion. The surface of the strap structure is provided with through positioning holes, which are distributed in multiple levels. The wrapping portion is constructed as a ring structure, and the first fixing portion is constructed as a columnar structure that forms an angle with the side of the base.

[0012] Furthermore, the base is constructed as a split structure, with a corresponding recess at the joint of the split structure, forming a mounting hole, through which the restraint member and strap structure extend at least partially into the base.

[0013] Furthermore, the winding part, the first fixing part, and the strap structure are respectively provided with a winding clip, a first fixing clip, and a strap clip. The winding clip is constructed as a column and abuts against the inner ring of the winding part, while the first fixing clip is located at the end of the first fixing part facing the base. The base has an internal mounting groove, and the strap clip can abut against the mounting groove by its own contour. The winding clip, the first fixing clip, and the strap clip are configured to prevent the winding part, the first fixing part, and the strap structure from coming off the base.

[0014] Furthermore, a second fixing part is provided on the side of the connecting part, which is configured to accommodate the strap structure after being fitted through the positioning hole.

[0015] Furthermore, the fan body is equipped with a water tank, which is located above the fan shroud. The fan shroud has a front and rear split structure, including a front shroud and a rear shroud. The front and rear shrouds have gaps at the top for more compact integration of the water tank. The water tank includes an inlet, a flow section, and an outlet. The inlet is located in the gap, while the outlet is located directly in front of the fan blades. The flow section connects the inlet and outlet. At the same time, the surface of the inlet has an inlet port, which is fitted with a plug. One end of the plug extends into the fan shroud and is integrated into the fan body.

[0016] Furthermore, the fan body also includes a motherboard for realizing the multi-functional effects of the fan body, and a forward-facing recessed accommodating chamber is formed on the back of the fan shroud. The accommodating chamber is configured to accommodate the drive unit and the motherboard, and the accommodating chamber is fitted with a cover for sealing.

[0017] This utility model includes a fan body and a support structure with a connecting part and a base. Its innovation lies in the fact that the support structure is equipped with a magnetic suction component and integrates a restraining component and a strap structure. Through the synergistic cooperation of magnetic fixation and strap winding fixation, this utility model achieves wide adaptability and stable installation of the fan on metal surfaces, irregular curved surfaces, and dynamic environments, effectively expanding the application scenarios of portable fans and meeting users' growing demands for convenience and multifunctionality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention from a frontal view.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention from a rear-view perspective;

[0021] Figure 4 This is a partial three-dimensional exploded view of the support structure of this utility model from a bottom-view perspective.

[0022] Figure 5 This is a partial three-dimensional exploded view of the support structure of this utility model from a frontal perspective.

[0023] Figure 6 This is a schematic diagram showing the fit between the strap structure and the base;

[0024] Figure 7 This is a partial exploded perspective view of the second fixing part of this utility model from a frontal view.

[0025] Figure 8 This is an exploded three-dimensional view of the overall structure of this utility model;

[0026] Figure 9 This is a partial three-dimensional exploded view of the wind shield of this utility model.

[0027] The above figures include the following reference numerals:

[0028] 1. Fan body; 11. Drive unit; 12. Fan blades; 13. Fan cover; 131. Front cover; 132. Rear cover; 1321. Receiving chamber; 1322. Cover; 14. Water tank; 141. Water inlet; 142. Flow section; 143. Water outlet; 144. Plug; 15. Main board; 2. Support structure; 21. Connecting part; 22. Base; 221. Upper seat; 222. Lower seat; 223. Mounting hole; 224. Mounting groove; 225. Mounting chamber; 3. Magnetic suction component; 31. Through port; 4. Binding component; 41. Winding part; 411. Winding clip; 42. First fixing part; 421. First fixing clip; 5. Strap structure; 51. Positioning hole; 52. Strap clip; 6. Rotating shaft; 7. Anti-slip pad; 8. Second fixing part; 81. Kit. Detailed Implementation

[0029] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is 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 indication will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are 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, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. 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.

[0032] In existing technologies, small portable fans are widely applicable, making them convenient to carry during daily leisure, office work, and travel. However, as people's expectations for ease of use increase, more convenient small portable fans have emerged. From a functional perspective, mainstream technical solutions employ clamping or hanging components to achieve wider applicability, such as using elastic clips and hooks in combination. However, these existing clamping or hanging solutions are difficult to adapt to inclined surfaces, irregular curved surfaces, or dynamic environments, often resulting in unstable installation or even installation failure, failing to meet users' growing demands for convenience and multifunctionality.

[0033] To address the aforementioned issues and broaden the applicability of small portable fans in daily life, such as... Figures 1 to 9 As shown, this utility model proposes a strap-type magnetic suction fan.

[0034] First Implementation Method

[0035] In this embodiment of the invention, the strap-type magnetic fan includes a fan body 1 and a support structure 2. The fan body 1 includes a drive device 11, fan blades 12, and a fan cover 13. The drive device 11 is connected to the fan blades 12 and is installed inside the fan cover 13. The fan body 1 is mounted on the support structure 2, which mainly supports the bottom of the fan body 1. The support structure 2 includes a connecting part 21 and a base 22 arranged from top to bottom. A typical installation method for the fan body 1 and the support structure 2 is that the connecting part 21 is used to cooperate with the fan cover 13, and the base 22 is located at the bottom of the connecting part 21. The outstanding feature of this invention compared to the prior art is that the surface of the support structure 2 is equipped with magnetic components 3. Due to the current popularity of indoor metal furniture, magnetic components 3 can be conveniently used in most indoor scenarios. In practical use, this invention achieves a stable installation effect by aligning the positions of the magnetic components 3, which are matched with the connecting part 21 or the base 22, with the contact surface. Simultaneously, in conjunction with the magnetic suction component 3, the support structure 2 also integrates a restraint component 4 and a strap structure 5. The strap structure 5 can be wrapped around an external contact object and is fixed by the restraint component 4, working together with the magnetic suction component 3 to fix the position of the fan body 1.

[0036] Understandably, the magnetic component 3 primarily secures one side of the contact surface. In conjunction with this single-sided support, the strap structure 5 mainly provides lateral mounting relative to the magnetically attached side. This combination of magnetic and strap fixation covers a wider range of applications. The magnetic component 3 is suitable for flat or regular metal surfaces, while the strap structure 5 is suitable for irregular curved surfaces, non-metallic surfaces, or dynamic environments, such as vibrations during cycling. This dual-fixing mechanism significantly improves the stability and adaptability of the fan body 1, solving the technical problems of unstable or even impossible installation on inclined surfaces, irregular curved surfaces, or dynamic environments.

[0037] In some embodiments of this invention, the magnetic suction component 3 is preferably a permanent magnet, but it can also be a magnetic element requiring external power supply, such as an electromagnet. The fan is firmly attached to a metal surface, such as metal furniture or appliances, through magnetic attraction. This overcomes the technical shortcomings of existing technologies that rely solely on clamping or suspension structures, which are prone to slipping on smooth or inclined metal surfaces and lack adaptability. Simultaneously, the strap structure 5 can be wrapped around external objects, such as railings, branches, or bicycle handlebars, and secured by the restraint member 4. The restraint member 4 can be a buckle, Velcro, or elastic ring, ensuring that the strap structure 5 does not loosen after wrapping, thus providing reliable auxiliary fixation in the lateral direction.

[0038] In some embodiments of this invention, the magnetic attraction component 3 is disposed inside the base 22, such as embedded inside the base 22, while partially exposed from the base 22 to directly contact the surface, thereby maximizing the magnetic effect and providing a certain degree of protection to prevent wear caused by external factors. The strap structure 5 is designed as an adjustable structure to accommodate objects of different sizes. In addition, the restraint member 4 can be integrated into the connecting part 21 or the base 22 for easy and quick operation by the user. It is understood that the mechanical structure for achieving the coordinated fixation of the magnetic attraction and the strap structure 5 is not limited to a single implementation. For example, as an equivalent alternative, the magnetic attraction component 3 can be implemented as a distribution of multiple small magnet arrays to enhance the fit to different curved surfaces; the strap structure 5 can also be replaced with a self-adhesive elastic rope or a retractable winding mechanism, as long as it can achieve winding fixation and adapt to objects of different shapes.

[0039] Figures 1 to 3 This is a three-dimensional structural diagram of the present invention from different perspectives. Specifically, it includes one embodiment of the specific construction of the restraining member 4 and the strap structure 5. Unlike some previously mentioned feasible embodiments, the restraining member 4 and the strap structure 5 are selectively located on the connecting part 21 or the base 22. To achieve a better installation effect and corresponding to the specific effect produced by the magnetic suction component 3 and the strap structure 5, the magnetic suction component 3 is located inside the base 22 and exposed from the lower surface of the base 22, while the restraining member 4 and the strap structure 5 are located on the outer side of the base 22. The restraining member 4 includes a winding part 41 and a first fixing part 42, which are independently located in different directions on the side of the base 22. The winding part 41 tightens the strap structure 5, while the first fixing part 42 secures the tightened strap structure 5. Specifically, the surface of the strap structure 5 is provided with through positioning holes 51, which are distributed in multiple levels. The winding part 41 is constructed as a ring structure, which guides the strap structure 5 and enables it to be tightened in an orderly manner. The first fixing part 42 is constructed as a columnar structure that is set at an angle to the side of the base 22, preferably vertically, to provide the best force direction and fixing effect.

[0040] In practical operation, the strap structure 5 selectively connects with the first fixing part 42 through its multi-level positioning holes 51 on its surface. Users can select different levels of positioning holes 51 to match the cylindrical structure according to the size of the object to be fixed, thereby achieving precise adjustment of the tightness of the strap structure 5. The strap structure 5 first passes through the annular structure of the winding part 41. The annular structure guides and limits the strap structure, ensuring that it does not shift or twist during tightening. Subsequently, the user places the selected positioning hole 51 onto the first fixing part 42 to complete the final fixation. Compared to the aforementioned fixing methods using buckles, Velcro, or elastic rings, the hole-to-cylinder connection mode adopted in this embodiment has significant mechanical advantages. This structure, through pure mechanical insertion and load-bearing, avoids the failure caused by wear and aging of buckles, and overcomes the problems of decreased adhesion of Velcro in dusty and humid environments or fatigue loosening of elastic rings due to long-term stretching. This connection method provides a more direct, reliable, and durable locking force, especially when facing dynamic environments (such as continuous vibrations during riding) or irregular curved surfaces. It can effectively resist the unexpected loosening of the strap structure 5, ensuring the ultimate stability of the fan when it is laterally fixed.

[0041] Understandably, the specific structure for achieving the hole-column connection function is not limited to a simple circular column and hole mating. In some alternative embodiments of this utility model, the first fixing part 42 can also be implemented as a square column, elliptical column, or polygonal column, and the shape of the positioning hole 51 can be changed accordingly to achieve the anti-rotation function; or, the end of the columnar structure can be provided with an enlarged head to form a snap-lock with the positioning hole 51, further enhancing the reliability of the connection. The annular structure of the winding part 41 can also be implemented as a U-shaped groove or a frame structure with guide rollers. As long as it can achieve the function of guiding the path of the strap structure 5 and assisting in tightening, it should be considered an equivalent alternative.

[0042] Figure 4 and Figure 5 This is a partial exploded perspective view of the support structure 2 from different angles, specifically showing a preferred embodiment of the installation of the restraining member 4 and the strap structure 5 with the support structure 2. The restraining member 4 and the strap structure 5 extend at least partially into the base 22 through mounting holes 223 on the side of the base 22. The base 22 is preferably designed as a split structure, with a corresponding recess at the joint between the upper and lower structures, or a recess on only the upper or lower structure, to form the mounting holes 223. The restraining member 4 and the strap structure 5 extend at least partially into this split-structure base 22, thereby achieving a stable installation effect.

[0043] Specifically, to more stably install the restraint member 4 and the strap structure 5, a winding clip 411, a first fixing clip 421, and a strap clip 52 are respectively provided at the winding part 41, the first fixing part 42, and the strap structure 5. The winding clip 411 is usually designed as a columnar structure. Taking the winding part 41 as an annular structure and the first fixing part 42 as a columnar structure as an example, the winding clip 411 abuts against the inner ring of the winding part 41, while the first fixing clip 421 is located at the end of the first fixing part 42 facing into the base 22, thereby preventing the winding part 41 and the first fixing part 42 from detaching from the base 22. The strap structure 5 needs special explanation. It can be understood that the winding part 41 and the first fixing member, since they bear the function of mechanical fixation, should preferably be made of rigid materials (such as metal, ceramic, and high-strength composite materials), while the strap structure 5 should preferably be made of flexible materials (such as polymers, soft substances, and flexible composite materials). Please refer to [reference needed]. Figure 6 The diagram illustrates how, using rubber, a common polymer, one end of the strap structure 5 located inside the base 22 can be designed as an irregularly shaped structure (i.e., strap clip 52). The base 22 contains a corresponding mounting groove 224. The strap clip 52 can abut against the mounting groove 224 using its own contour (including elastic deformation), thus achieving stable installation. Furthermore, the irregular fit between the strap clip 52 and the mounting groove 224 fully utilizes the elastic mechanical properties of flexible materials. At the moment of assembly, the strap clip 52 undergoes a controllable, temporary elastic deformation, using its geometric contour to form a mechanical interlock with the inner wall of the mounting groove 224. This connection method eliminates the need for additional fasteners (such as screws or rivets) or chemical adhesives, ensuring reliable connection and preventing failure due to glue aging or loose screws. It is particularly suitable for applications requiring dynamic loads (such as vibration or frequent assembly / disassembly).

[0044] It should be anticipated that the installation of the restraint member 4 and the strap structure 5 with the support structure 2 can be implemented in various ways. For example, as an equivalent alternative, the base 22 may not be limited to a horizontal split, but may also be a longitudinal split or a structure with an openable access cover. The winding clip 411 and the first fixing clip 421, in addition to being columnar, may also be implemented as an L-shaped bracket, a surrounding clamp structure, or an elastic tongue with a guide ramp, as long as they can achieve the function of restricting the corresponding parts from falling out and transmitting loads. For the strap clip 52, its irregular structure may also evolve into a round-headed, anchor-shaped, or structure with transverse protrusions, and the shape of the mounting groove 224 may be adapted accordingly. Its core lies in achieving a reliable connection without additional fasteners through the interlocking of geometric shapes and the elastic deformation of materials.

[0045] More specifically, to make the magnetic component 3, the restraint component 4, and the strap structure 5 more operable in practice and adaptable to more scenarios, an exemplary embodiment is provided for the preferred upper and lower split configuration of the base 22, wherein the base 22 includes an upper body 221 and a lower body 222, and the upper body 221 and the lower body 222 are configured to be rotatably connected.

[0046] This rotatable connection can be achieved through various mechanical structures. For example, a rotating shaft 6 can be set at the center of the contact surface of the upper and lower seats 222, and a damping ring or preload spring can preferably provide appropriate rotational resistance so that it can stably maintain any angle without external force. Alternatively, a ratchet and pawl mechanism can be used, allowing the upper seat 221 to be adjusted and locked at fixed angular intervals relative to the lower seat 222. Or, a ball joint mechanism can be integrated between the upper and lower seats 222 to achieve multi-degree-of-freedom angle adjustment. The greatest advantage of the rotatable connection is that by rotating the upper and lower seats 222, the initial direction of the extension and wrapping of the strap structure 5 can be adjusted, allowing the strap structure 5 to more smoothly and reasonably bypass fixed objects of different shapes, avoiding twisting of the strap structure 5 or unnecessary interference, making the binding operation more convenient and reliable.

[0047] This invention proposes a rotatable connection implementation method for use with the magnetic suction component 3. The core of this implementation method is to align the rotation axis 6 with the geometric center of the magnetic suction component 3 to achieve the most stable mechanical performance. Specifically, the magnetic suction component 3 has a through-hole 31 in the middle. The rotation axis 6 (which can be a screw in this embodiment) passes through this through-hole 31, connecting the upper seat 221, the magnetic suction component 3, and the lower seat 222 in series, allowing them to rotate relative to each other around the rotation axis 6. By aligning the center of the rotation axis 6 with the center of magnetic force, the line of action of the magnetic force always passes through the center of rotation at any rotation angle of the lower seat 222, avoiding additional overturning torque caused by eccentricity and ensuring adsorption stability in all orientations. Furthermore, this invention allows for independent and smooth rotation of the upper seat 221 and the entire fan body 1 while keeping the lower seat 222 and the magnetic suction component 3 firmly adsorbed onto any orientation (horizontal, vertical, or inclined) metal surface, achieving stepless adjustment of the airflow direction within a 360° range. This solves the problem of fixed direction in existing magnetic fans.

[0048] Furthermore, axial locking is achieved by the enlarged structure at the end of the rotating shaft 6 (e.g., the head of a screw, or a rivet head formed by heat fusion at the shaft end) engaging with the plane around the opening 31 of the magnetic component 3. When the rotating shaft 6 is fastened or riveted, its enlarged end forms surface contact with the surface of the magnetic component 3, generating sufficient pre-tightening friction. This friction is carefully designed to provide stable rotational damping, preventing the fan body 1 from deflecting due to gravity or vibration during normal use, while also ensuring smooth angle adjustment when the user applies a reasonable torsional force.

[0049] Understandably, the specific structure for achieving rotatable connection and locking is not limited to screws or rivet heads. In some alternative embodiments of this invention, the rotating shaft 6 can be implemented as a stepped shaft with an integrated flange, locked from the other end by a nut; or, the rotating shaft 6 itself can be a double-headed, enlarged rivet, fixed by pressure assembly. The shape of the opening 31 in the middle of the magnetic component 3 can also be varied accordingly, for example, it can be non-circular (such as D-shaped or square) to cooperate with the rotating shaft 6 to transmit torque, or a sliding bearing or powder metallurgy oil-impregnated bearing can be embedded in the opening 31 to further improve rotational smoothness and durability. As long as its design satisfies the basic principle of achieving relative rotation with the rotating shaft 6 passing through the center of the magnetic component 3 and providing rotational damping through axial constraint, it should be considered an equivalent alternative.

[0050] Furthermore, the magnetic component 3, the restraining member 4, and the strap structure 5 will be described in more detail. As can be seen from the foregoing, a preferred embodiment of the magnetic component 3 is embedded inside the base 22, with a portion protruding from the lower surface of the base 22. Of course, the magnetic component 3 shown in this utility model protrudes from the lower surface of the base 22, which is not a limitation of this utility model, but merely an example. In practice, the installation logic of the magnetic component 3, the restraining member 4, and the strap structure 5 can be reversed, with the restraining member 4 and the strap structure 5 located below the base 22, while the magnetic component 3 protrudes from the side of the base 22. This reversed layout produces new beneficial effects. When the fan needs to be fixed to a vertical or inclined metal facade (such as the side wall of a refrigerator or a metal partition), the magnetic component 3 located on the side can provide the main attraction force, while the restraining member 4 and the strap structure 5 located below the base 22 can extend downwards and wrap around and fix to the protrusions or rod-like structures (such as cabinet door handles or crossbars) on the facade, forming an auxiliary safety against gravity-induced sliding. Furthermore, it should be emphasized that the connecting part 21 can also serve as a component for mounting the magnetic component 3, the restraint component 4, and the strap structure 5. From the perspective of simplicity and single assembly, the main function of the connecting part 21 is to connect the fan body to the fan cover 13. This does not preclude the connecting part 21 from functioning as a module for magnetic attraction or integrating the restraint component 4 and the strap structure 5. By treating the magnetic component 3, the strap structure 5, and other fixing functional units as independent modules, and allowing these modules to be logically interchanged or superimposed on the support structure 2 (including the base 22 and the connecting part 21), a variety of feasible and effective implementation methods can be derived.

[0051] Depend on Figure 4 and Figure 5To elaborate further, to facilitate more stable one-sided fixation of the magnetic component 3, an anti-slip pad 7 is provided. The anti-slip pad 7 provides sliding friction after the magnetic component 3 is attracted, thus enhancing the stability of the one-sided fixation. As a crucial cooperating element of the magnetic component 3, the anti-slip pad 7, together with the magnetic component 3, forms a composite fixing interface. The anti-slip pad 7 is preferably made of a high-friction elastic material (such as rubber, silicone, or thermoplastic elastomer) and is positioned outside the contour of the magnetic component 3, on the same plane as or slightly protruding from the attraction surface of the magnetic component 3. This design produces a significant synergistic enhancement effect. When the magnetic component 3 is attracted to the surface of the contact object, the magnetic force provides a normal attraction force perpendicular to the contact surface, pressing the fan body 1 firmly against the target surface. At this time, the anti-slip pad 7 surrounding the magnetic component 3 is compressed. Its elastic deformation not only ensures that the bottom surface of the magnetic component 3 is in close contact with the metal surface to maximize the magnetic flux, but more importantly, it provides considerable static friction due to its material properties. This static friction acts directly in the direction parallel to the contact surface and can effectively resist the slight vibration generated by the fan during operation, accidental contact, or the sliding component force generated by gravity when placed on an inclined surface.

[0052] Meanwhile, it should be noted that a typical installation method for the magnetic component 3 is as follows: a mounting chamber 225 for accommodating the magnetic component 3 and the anti-slip pad 7 is provided at the bottom of the lower base 222. The anti-slip pad 7 is located outside the outline of the magnetic component 3, and the anti-slip pad 7 and the magnetic component 3 can be fixed together using conventional adhesive methods. In this embodiment, preferably, the lower part of the mounting chamber 225 is a fully open structure, which is beneficial for the magnetic component 3 to have a wider magnetic attraction area, thereby achieving a more secure installation. The anti-slip pad 7 also plays a role in elastic abutment, so that the magnetic component 3 is stably installed on the lower base 222 and its position is relatively fixed relative to the magnetic component 3.

[0053] Understandably, the method of fixing and cooperating the magnetic component 3 and the anti-slip pad 7 within the mounting chamber 225 is not limited to adhesive bonding. In some alternative embodiments of this utility model, the mounting chamber 225 may be designed with a snap-fit ​​structure or a pressure plate to mechanically press and fix the magnetic component 3 and the anti-slip pad 7 together; or, the anti-slip pad 7 itself may be embedded into the mounting chamber 225 with an interference fit to the base 22, and then its material elastically covers and clamps the magnetic component 3. As long as the design satisfies the requirement of stably integrating the magnetic component 3 and the anti-slip pad 7 within the mounting chamber 225 of the base 22, and enables the anti-slip pad 7 to perform the dual functions of elastic support and friction anti-slip, it should be considered an equivalent alternative.

[0054] Meanwhile, the specific structure for achieving the aforementioned coordinated fixation is not limited to the form where the anti-slip pad 7 completely surrounds the magnetic component 3. In some alternative embodiments of this invention, the anti-slip pad 7 can be implemented as a strip structure symmetrically distributed on both sides of the magnetic component 3, or as discrete dot-like protrusions located around the magnetic component 3. The key point is that the anti-slip pad 7 must work in conjunction with the magnetic component 3 to jointly form a fixing interface that can simultaneously provide normal adsorption force and tangential friction force. In addition, the anti-slip pad 7 can also be integrally formed with the lower surface of the base 22 (e.g., through a two-color injection molding process), or as a replaceable independent part embedded in a slot, to adapt to different wear conditions or the user's personalized needs for the coefficient of friction.

[0055] Figure 7 This is a partial exploded perspective view of the second fixing part 8 of this utility model from a frontal view. (From the aforementioned...) Figures 1 to 6 It is evident that the strap structure 5 presents a problem of inconvenient storage in practice. To ensure sufficient length, the strap structure 5 is typically designed as a long strip to encompass multiple levels of positioning holes 51 within its structure. To facilitate storage of the strap structure 5, a second fixing part 8, similar in construction to the first fixing part 42, can be designed. The second fixing part 8 is located at the connecting part 21, and its surface is also equipped with a fitting 81 to prevent scratches during use. When storage of the strap structure 5 is required, it is folded and the corresponding positioning holes 51 are fitted onto the second fixing part 8, thus achieving storage of the strap structure 5. This storage action follows the same logic as the fixing action, eliminating the need to learn new operating procedures.

[0056] The equivalent technical solution for the second fixing part 8 can refer to the description of the first fixing part 42, as long as it can form an effective connection with the positioning hole 51 of the strap structure 5. At the same time, the setting position of the second fixing part 8 can also be flexibly adjusted. For example, it can be set on the main body of the fan cover 13. Specifically, the scheme of setting a protrusion on the fan cover 13 can be referred to, as long as it does not affect the main function and is in a convenient position for operation. The core concept is to provide a dedicated fixing point for the flexible strap structure 5 based on its own structure, thereby solving the pain point of its storage and organization.

[0057] Second Implementation Method

[0058] This embodiment describes the installation components, such as the magnetic suction component 3, the restraint component 4, and the strap structure 5, in the same way as the previous embodiment. The main difference is that a spray blowing function is added to the fan body 1. The spray blowing function is achieved by providing a water tank 14 to the fan body 1, which is positioned above the fan cover 13. Figure 8As shown, preferably, the fan cover 13 has a split front and rear structure, including a front cover 131 and a rear cover 132. A gap is left at the top between the front cover 131 and the rear cover 132 for more compact integration of the water tank 14. The water tank 14 includes a water inlet 141, a flow section 142, and a water outlet 143. The water inlet 141 is located in the gap above the front cover 131 and the rear cover 132, while the water outlet 143 is located directly in front of the fan blades 12. The flow section 142 connects the water inlet 141 and the water outlet 143. Placing the water tank 14 at the top helps lower the overall center of gravity of the product when used with the bottom magnetic suction component 3, thereby enhancing placement stability to some extent. Furthermore, the water flows naturally from the higher water inlet 141 to the water outlet 143 due to gravity; this flow path design is simple and efficient. The water mist generated by atomization is then instantly blown out by the airflow generated by the rotation of the fan blades 12, achieving a wide-area spray and blowing effect. Furthermore, to enable water filling, a water inlet (not shown) is provided on the surface of the water inlet 141, which is normally plugged with a plug 144. Preferably, the plug 144 is integrated into the fan body 1 for greater convenience during use. With separate components, the plug 144 is prone to falling off or being lost. Therefore, one end of the plug 144 can be inserted into the fan cover 13 for installation. Since the plug 144 is not the focus of this invention, and its installation is easily implemented by those skilled in the art, it will not be described in detail here.

[0059] Understandably, the specific structure for integrating the spray and blowing functions is not limited to placing the water tank 14 in the gap at the top of the fan cover 13. In some alternative embodiments of this invention, the water tank 14 may also be designed as an annular chamber surrounding the fan cover 13, or as part of the support structure 2 built into the connecting part 21 or the base 22, and water may be delivered to the atomizer at the front via a micro water pump. As long as the design satisfies the requirement of integrating the spray function on the portable fan body and does not affect its core fixation and portability characteristics, it should be considered within the scope of this invention. As for how the water tank 14 and the fan cover 13 are installed, conventional fastening methods such as threaded connections and snap-fits can be used, which will not be elaborated here.

[0060] Third Implementation Method

[0061] This embodiment uses the same components for installation, fan cover 13, and water tank 14 as the previous embodiment, with the main difference being the drive unit 11 and the corresponding main board 15. In the prior art, the drive unit 11 is generally a motor housed within the fan cover 13 along with the fan blades 12. The motor is fixed within the fan cover 13 and is connected to the fan blades 12 via a transmission connection. Market demands require portable fans to offer multiple functions such as multi-level wind speed adjustment, lighting, timing, power indication, and the aforementioned spray function. Therefore, the drive unit 11 is electrically connected to the main board 15, which is configured with various functional modules for switching the usage state of the fan body 1. In the prior art, conventional layouts typically place the main board 15 within the support structure 2 (such as the handle or base 22). However, in the overall architecture of this invention, the support structure 2 already bears the heavy load or functional components such as the magnetic suction component 3, the restraint component 4, the strap structure 5, and even the water tank 14. Placing the main board 15 there would result in the structural center of gravity being too low or biased to one side. When the magnetic component 3 is attached to a vertical surface, or when it is suspended from a slender object by the strap structure 5, the top-heavy or unbalanced torque state will significantly reduce stability and may even cause the product to tip over.

[0062] This utility model is achieved through... Figure 9 The innovative structure shown provides a solution to the aforementioned problems. The rear cover 132 forms a recessed accommodating chamber 1321 facing the front cover 131. The accommodating chamber 1321 is used to simultaneously accommodate the drive unit 11 and the main board 15. Subsequently, the accommodating chamber 1321 is closed by a cover 1322 that fits into the rear cover 132, forming a compact, sealed, and protected electronic compartment. The two core electronic components with a certain weight, the drive unit 11 and the main board 15, are integrated in the rear of the fan cover 13, effectively adjusting the center of mass of the product towards the geometric center of the fan. This makes the force more even and the adsorption more stable when using bottom magnetic adsorption; when using the strap structure 5 for lateral or top fixation, it can also effectively avoid additional overturning torque caused by its own weight, fundamentally improving the dynamic stability under various installation postures.

[0063] The specific structure for optimizing the layout of the electronic components is not limited to a single accommodating chamber 1321. In some alternative embodiments of this invention, the accommodating chamber 1321 may partially extend into the connecting portion 21, or the motherboard 15 itself may be designed as a ring, arranged around the motor. The core concept is to optimize the overall mass distribution of the product by moving the mounting positions of the drive device 11 and the motherboard 15 from the support structure 2 and concentrating them at the rear of the fan body 1. This achieves mechanical synergy with fixing methods such as magnetic attraction and straps, ultimately unifying enhanced functionality and stable use.

[0064] Furthermore, in the prior art, the drive device 11 of portable fans generally uses an electric motor (such as a brushed motor or a brushless motor), which is indeed the most mature and common solution for realizing the rotation of the fan blades 12. However, this is not the only technical path. The definition of the drive device 11 in this utility model is not limited to this. Its core function is to generate rotational power to drive the fan blades 12. For example, this function can also be achieved using a piezoelectric ceramic actuator or a magnetic levitation motor. Any other mechanism or principle that can achieve this function can be used as an equivalent replacement or advanced implementation scheme of the drive device 11 of this utility model.

[0065] The following content serves as an explanation of the working principle of this utility model:

[0066] The working principle of this utility model is based on the coordinated operation of three functional modules: magnetic fixation, strap fixation, and rotatable adjustment. In normal use, users can choose different fixing methods according to the characteristics of the mounting surface. When on a metal surface, the magnetic component 3 on the lower surface of the base 22 generates a normal adsorption force to initially fix the fan body 1; at the same time, the anti-slip pad 7 surrounding the magnetic component 3 provides tangential static friction through elastic deformation, together forming a stable composite fixing interface. When facing non-metallic surfaces, irregular curved surfaces, or dynamic environments, users can use the strap structure 5, which passes through the winding part 41, tightens, and wraps around the external object. By selecting the appropriate level of the multi-level positioning hole 51 and inserting it into the first fixing part 42, the length of the strap structure 5 can be precisely adjusted and reliably locked, forming a lateral binding force.

[0067] Secondly, when the mounting surface is a vertical or inclined metal facade, the user can first use the magnetic components 3 located on the side of the base 22 for adsorption and fixation, while using the strap structure 5 for auxiliary binding, forming a double insurance mechanism of magnetic anti-detachment and strap anti-fall. In addition, by rotating the upper body 221 and the lower body 222, the user can steplessly adjust the blowing angle of the fan body 1 while maintaining magnetic fixation, achieving precise control of the airflow direction.

[0068] In the implementation of the integrated spray function, the water tank 14 supplies water to the atomizing device by gravity, and the atomized water mist is blown out by the airflow of the fan blade 12 to achieve humidification and cooling. By integrating the drive device 11 and the main board 15 into the accommodating chamber 1321 of the rear cover 132, the overall center of gravity distribution is optimized, ensuring dynamic stability under various fixed postures.

[0069] In summary, this utility model achieves multi-dimensional innovation in terms of fixing method, usage function and overall structure through the fixed combination of magnetic component 3 and strap structure 5, the rotatable and adjustable base 22, the integration of spray function and the optimization of electronic compartment layout. Ultimately, it has created a portable fan product that is widely adaptable to various scenarios, easy to operate and stable and reliable.

[0070] The above description is only a preferred embodiment or example 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 strap-type magnetic suction fan, comprising a fan body (1) and a support structure (2), wherein the fan body (1) includes a drive device (11), fan blades (12) and a fan cover (13), the drive device (11) being drivenly connected to the fan blades (12) and together installed inside the fan cover (13), the support structure (2) including a connecting part (21) and a base (22), the connecting part (21) being configured to mount the fan body (1), and the base (22) being configured to support the bottom of the fan body (1), characterized in that: The support structure (2) is provided with a magnetic suction component (3), which is at least partially mounted on the surface of the support structure (2). The support structure (2) is also provided with a restraint component (4) and a strap structure (5). The strap structure (5) is configured to be fixed by the restraint component (4) after being wrapped around an external contact object, thereby cooperating with the magnetic suction component (3) to fix the position of the fan body (1).

2. The strap-type magnetic suction fan as described in claim 1, characterized in that: The magnetic attraction component (3) is located inside the base (22) and is at least partially exposed on the lower surface of the base (22). The restraint component (4) and the strap structure (5) are independently located on different sides of the base (22).

3. The strap-type magnetic fan as described in claim 2, characterized in that: The magnetic suction component (3) is fixedly connected to an anti-slip pad (7), which is configured to provide static friction to the magnetic suction component (3) in the direction parallel to the contact surface; a mounting chamber (225) is provided below the base (22), which is configured to accommodate the magnetic suction component (3) and the anti-slip pad (7), which is located on the outer contour of the magnetic suction component (3) and abuts against the inner wall of the mounting chamber (225).

4. The strap-type magnetic fan as described in claim 3, characterized in that: The base (22) includes an upper body (221) and a lower body (222), which are rotatably connected. The magnetic component (3) has a through-hole (31) in the middle, through which a rotating shaft (6) connects the upper body (221), the magnetic component (3) and the lower body (222) in series and allows the three to rotate relative to each other.

5. The strap-type magnetic suction fan as described in claim 2, characterized in that: The restraint member (4) includes a winding part (41) and a first fixing part (42). The winding part (41) and the first fixing part (42) are independently provided in different directions on the side of the base (22). The winding part (41) is configured to tighten the strap structure (5), while the first fixing part (42) is configured to fix the strap structure (5) after it is tightened by the winding part (41). The surface of the strap structure (5) is provided with a through positioning hole (51). The positioning hole (51) is distributed in multiple levels. The winding part (41) is constructed as a ring structure, and the first fixing part (42) is constructed as a columnar structure that forms an angle with the side of the base (22).

6. The strap-type magnetic suction fan as described in claim 5, characterized in that: The base (22) is constructed as a split structure, and the joint of the split structure is provided with a corresponding recess, which forms a mounting hole (223). The restraint (4) and the strap structure (5) extend into the base (22) at least partially from the mounting hole (223).

7. The strap-type magnetic suction fan as described in claim 6, characterized in that: The winding part (41), the first fixing part (42) and the strapping structure (5) are respectively provided with a winding clip (411), a first fixing clip (421) and a strapping clip (52). The winding clip (411) is constructed as a column and abuts against the inner ring of the winding part (41). The first fixing clip (421) is located at the end of the first fixing part (42) facing the base (22). The base (22) has an installation groove (224) inside. The strapping clip (52) can abut against the installation groove (224) by its own contour. The winding clip (411), the first fixing clip (421) and the strapping clip (52) are configured to prevent the winding part (41), the first fixing part (42) and the strapping structure (5) from coming out of the base (22).

8. The strap-type magnetic suction fan as described in claim 7, characterized in that: The side of the connecting part (21) is provided with a second fixing part (8), which is configured to accommodate the strap structure (5) after being fitted through the positioning hole (51).

9. The strap-type magnetic suction fan as described in any one of claims 1 to 8, characterized in that: The fan body (1) is equipped with a water tank (14), which is located above the fan cover (13). The fan cover (13) is a split structure, including a front cover (131) and a rear cover (132). The front cover (131) and the rear cover (132) have a gap at the top for more compact integration of the water tank (14). The water tank (14) includes a water inlet (141), a flow part (142), and a water outlet (143). The water inlet (141) is located in the gap, while the water outlet (143) is located in front of the fan blade (12). The flow part (142) is connected between the water inlet (141) and the water outlet (143). At the same time, the surface of the water inlet (141) is provided with a water inlet, and the water inlet is equipped with a plug (144). One end of the plug (144) extends into the fan cover (13) and is integrated and installed on the fan body (1).

10. The strap-type magnetic suction fan as described in any one of claims 1 to 8, characterized in that: The fan body (1) also includes a main board (15) for realizing the multi-functional effect of the fan body (1). The back of the fan cover (13) forms a recessed accommodating chamber (1321) facing forward. The accommodating chamber (1321) is configured to accommodate the drive device (11) and the main board (15). The accommodating chamber (1321) is provided with a cover (1322) for closing.

Images