A versatile, foldable handheld fan

Abstract

This utility model discloses a multi-functional, foldable handheld fan, belonging to the field of electrical technology. It includes a handle, a fan head, and a rotating structure that rotatably connects the handle to the fan head. The fan head includes an expansion device and an air inlet cover. The expansion device is fixed at the air outlet of the air inlet cover. The expansion device includes an expansion cavity for mounting a functional device and an outer cover detachably connected to the expansion cavity. The expansion cavity is fixedly connected to the air inlet cover, and an electrical connection structure connected to the air inlet cover is provided within the expansion cavity. It allows for the convenient addition of various functional devices and is easy to use.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliances, and in particular to a multi-purpose, foldable handheld fan. Background Technology

[0002] With the development of technology, various types of fans have emerged. In general, fans are divided into fixed fans and portable fans. Portable fans include handheld fans. Generally, the size and weight of handheld fans should not be too large.

[0003] However, existing handheld fans only have the function of blowing air, which can no longer meet the other needs of users. But if functions such as misting and humidification, heating and blowing warm air, LED flashlight lighting, LED spotlight, LED sterilization lamp or ice pack cooling are added to the handheld fan, it will easily increase the size and weight of the handheld fan excessively, making it unsuitable for use. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-purpose foldable handheld fan that allows users to easily add various expansion devices and functional components, making it suitable for use in different situations.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A multi-purpose, foldable handheld fan includes a handle, a fan head, and a rotating structure that rotatably connects the handle to the fan head. The fan head includes an expansion device and an air inlet cover. The expansion device is fixed at the air outlet of the air inlet cover. The expansion device includes an expansion cavity for mounting a functional device and an outer cover detachably connected to the expansion cavity. The expansion cavity is fixedly connected to the air inlet cover, and an electrical connection structure connected to the air inlet cover is provided inside the expansion cavity.

[0007] Preferably, the expansion device further includes a first housing, the rotating structure includes an adjusting wheel disposed at the lower end of the first housing, the circuit connection structure is disposed inside the first housing, and the circuit connection structure includes a drive control board for controlling functional devices.

[0008] Preferably, the grip includes a second housing, one end of which is provided with a groove for mounting the adjusting wheel, and the adjusting wheel is mounted in the grip through the groove.

[0009] Preferably, both sides of the groove are provided with side holes, and a positioning pin for positioning the adjusting wheel is provided in the side hole.

[0010] Preferably, the grip bar further includes a retractable hanging ring, which is disposed at the other end of the second housing.

[0011] Preferably, the other end of the second housing is provided with a mounting hole for installing the hanging ring, and the mounting hole is surrounded by locking points for locking and positioning the hanging ring.

[0012] Preferably, a battery is also provided inside the second housing, and a button and a display screen are provided on the second housing, both of which are electrically connected to the battery.

[0013] Preferably, the fan head further includes a fan body disposed within the air inlet shroud, the expansion cavity is further provided with a perforation, the air inlet shroud communicates with the perforation, and the fan body is electrically connected to the battery.

[0014] Preferably, the rotating structure further includes a ring of gear teeth disposed on the adjusting wheel, with tooth recesses disposed between adjacent gear teeth, the adjusting wheel, the gear teeth and the tooth recesses forming a rotating component, and a positioning protrusion that is recessed with the tooth recesses is disposed near the adjusting wheel in the second housing.

[0015] Preferably, the expansion device is provided with a power supply position for supplying power to functional devices, including a sprayer, an ice pack device, a heating device, a projector, an LED flashlight, or an LED germicidal lamp.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This application discloses a multi-purpose, foldable handheld fan, including an expansion device. The expansion device includes an expansion cavity for installing functional devices and an outer cover detachably connected to the expansion cavity. When a user needs a certain functional device, the required functional device can be installed through the expansion cavity. If the functional device is not needed, the outer cover can be removed to remove the functional device and install the required functional device. This allows users to selectively install and remove various functional devices, thereby adding various functions to the handheld fan without excessively increasing its size and weight, making it convenient for use under different needs. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the multi-purpose foldable handheld fan of this utility model;

[0019] Figure 2 A three-dimensional structural diagram of the multi-purpose foldable handheld fan of this utility model after removing some components;

[0020] Figure 3 This is a three-dimensional structural diagram of the fan head of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the grip bar of this utility model;

[0022] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0023] Figure 6 for Figure 4 Enlarged structural diagram at point B;

[0024] Figure 7 This is a schematic diagram of the planar structure of the fan head of this utility model.

[0025] In the diagram: 100, handheld fan; 10, expansion device; 11, first housing; 12, expansion cavity; 121, perforation; 13, adjusting wheel; 131, gear teeth; 14, outer cover; 141, knob; 15, rotating component; 16, power supply position; 20, grip; 21, second housing; 211, positioning hole; 212, mounting hole; 213, locking point; 22, hanging ring; 23, battery; 24, groove; 241, side hole; 242, positioning post; 26, display screen; 27, button; 30, fan head; 31, air inlet cover. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Implementation Method 1

[0029] like Figures 1-2As shown, this application discloses a multi-purpose, foldable handheld fan 100, including a grip 20, a fan head 30, and a rotating structure that rotatably connects the grip 20 to the fan head 30. The fan head 30 includes an expansion device 10 and an air inlet cover 31. The expansion device 10 is fixed at the air inlet of the air inlet cover 31. The expansion device 10 includes an expansion cavity 12 for mounting a functional device and an outer cover 14 detachably connected to the expansion cavity 12. The expansion cavity 12 is fixedly connected to the air inlet cover 31, and an electrical connection structure connected to the air inlet cover 31 is provided inside the expansion cavity 12.

[0030] In the above embodiment, the multi-purpose foldable handheld fan 100 includes an expansion device 10. This expansion device 10 includes an expansion cavity 12 for mounting functional devices and an outer cover 14 detachably connected to the expansion cavity 12. When a user needs a specific functional device (e.g., humidification), the required functional device (humidifier) ​​can be installed through the expansion cavity 12. If the functional device (humidifier) ​​is not needed, the outer cover 14 can be removed to remove the functional device and install other functional devices. This allows users to selectively install and remove various functional devices from the handheld fan 100, thereby adding various functions to the handheld fan 100. Because only one functional device is added to the handheld fan 100 at most, the size and weight of the handheld fan 100 are not excessively increased, making it convenient for use under different needs.

[0031] The grip bar 20 is convenient for gripping, the fan head 30 can blow air, and a functional device can be installed in the expansion cavity 12. The installed functional devices are all small functional devices. After the outer cover 14 is removed, the gas or liquid sprayed by the installed functional device can be blown out by the fan head 30 and blown towards the user or target object.

[0032] Implementation Method 2

[0033] like Figures 1-2 As shown, in a preferred embodiment, the expansion device 10 further includes a first housing 11 and an adjusting wheel 13 disposed at the lower end of the first housing 11. The circuit connection structure and the expansion cavity 12 are disposed within the first housing 11, and the expansion device 10 is rotatably connected to the grip 20 via the adjusting wheel 13. Figures 4-5 As shown, the grip 20 includes a second housing 21. One end of the second housing 21 is provided with a groove 24 for mounting the adjusting wheel 13. The adjusting wheel 13 is mounted in the grip 20 through the groove 24. Both sides of the groove 24 are provided with side holes 241, and positioning pins 242 for positioning the adjusting wheel 13 are provided in the side holes 241.

[0034] In the above embodiment, the adjusting wheel 13 facilitates the rotation of the expansion device 10 and the fan head 30 along the handle 20, thereby facilitating the adjustment of the angle of the expansion device 10 and the fan head 30. The groove 24 facilitates the installation of the adjusting wheel 13, and the positioning pin 242 can position the adjusting wheel 13, such as... Figure 7 As shown, the adjusting wheel 13 is provided with a plurality of evenly spaced gear teeth 131, with tooth recesses between adjacent gear teeth 131. The positioning pin 242 can be engaged between adjacent gear teeth 131 (or within tooth recesses) to form a limiting point to limit the adjusting wheel 13, thereby limiting the fan head 30. Through the rotation of the adjusting wheel 13 and the engagement of the positioning pin 242, the fan head 30 can rotate forward or backward by 0 to 100 degrees and fold, with a limiting point every 10 degrees.

[0035] Implementation Method 3

[0036] like Figure 1 As shown, in a preferred embodiment, the grip 20 further includes a retractable hanging ring 22, which is disposed at the other end of the second housing 21. Figure 6 As shown, the other end of the second housing 21 is provided with a mounting hole 212 for mounting the hanging ring 22, and the mounting hole 212 is provided with locking points 213 around it for locking and positioning (locking) the hanging ring 22.

[0037] In the above embodiments, the hanging ring 22 can be extended to various lengths as needed to meet the thrust of different wind speeds and stabilize on various appliances (tables, chairs, or walls). The locking points 213 are paired, with a pair of locking points 213 on the left, right, and bottom of the mounting hole 212, enabling the hanging ring 22 to be positioned and locked "forward, backward, and downward," thus ensuring that the hanging ring 22 is stably positioned on the table, chair, or wall in different directions, thereby meeting various usage requirements. Preferably, the hanging ring 22 is a metal tube hanging ring.

[0038] Implementation Method 4

[0039] In a preferred embodiment, such as Figure 4 As shown, a battery 23 is also disposed inside the second housing 21, and a button 27 and a display screen 26 are disposed on the second housing 21. Both the button 27 and the display screen 26 are electrically connected to the battery 23. Figure 7 As shown, the fan head 30 includes an air inlet shroud 31 and a fan body (not shown) disposed inside the air inlet shroud 31. The expansion cavity 12 is also provided with a perforation 121. The air inlet shroud 31 communicates with the perforation 121. The fan body is electrically connected to the battery 23.

[0040] In the above embodiment, the battery 23 can power the fan body and the display screen 26. The second housing 21 can also be provided with a Type-C charging port, which can charge the battery. The button 27 includes a "fan speed-up button, a fan speed-down button, and an ON-Off switch" for user convenience. The display screen 26 is a digital display screen that can display the operating status of the handheld fan 100. The air inlet cover 31 can protect the fan body and facilitate airflow, and the perforation 121 facilitates airflow into the expansion cavity. The grip 20 is also provided with a positioning hole 211 for fixing the second housing 21.

[0041] Implementation Method 5

[0042] In a preferred embodiment, such as Figure 3 As shown, the adjusting wheel 13, the gear tooth 131, and the tooth recess form a rotating component 15. The second housing 21 has a positioning protrusion that mates with the tooth recess near the adjusting wheel 13. The outer cover 14 has a knob 141 that facilitates rotation. Figure 7 As shown, the circuit connection structure includes a power supply bit 16 for supplying power to the functional devices and a drive control board for controlling the functional devices. The functional devices include a sprayer, an ice pack device, a heating device, a projector, an LED flashlight, or an LED germicidal lamp, etc.

[0043] In the above embodiment, the rotating component 15 facilitates the installation and rotation of the adjusting wheel 13, and the knob 141 allows for the removal of the outer cover 14. The power supply position 16 is a set of three contact points, facilitating the power supply and control of the functional devices. A separate "expanded function control button" can also be provided on the grip 20 to control the start-up of the functional devices or PWM and other functions. The functional devices can perform various functions, such as heating, humidification, cooling, lighting, and sterilization, making them very convenient for users.

[0044] In summary, the handheld fan disclosed in this application expands the functional components required by the user through the shown expansion device. When the user needs to replace the functional components, they can be replaced, thus increasing the required functions and ease of use without excessively increasing weight and size. At the same time, the hanging ring 22 and the adjusting wheel 13 facilitate the stability and adjustment of the angle of the fan head 30, greatly increasing convenience.

[0045] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A multi-purpose foldable hand fan, comprising a handle, a fan head and a rotating structure for rotatably connecting the handle and the fan head, characterized in that: The fan head includes an expansion device and an air inlet shroud. The expansion device is fixed at the air outlet of the air inlet shroud. The expansion device includes an expansion cavity for installing a functional device and an outer cover detachably connected to the expansion cavity. The expansion cavity is fixedly connected to the air inlet shroud, and an electrical connection structure connected to the air inlet shroud is provided inside the expansion cavity.

2. The multi-purpose collapsible hand fan according to claim 1, wherein: The expansion device further includes a first housing, the rotating structure includes an adjusting wheel disposed at the lower end of the first housing, the circuit connection structure is disposed inside the first housing, and the circuit connection structure includes a drive control board for controlling functional devices.

3. The multi-purpose collapsible hand fan according to claim 2, wherein: The grip includes a second housing, one end of which is provided with a groove for mounting the adjustment wheel, and the adjustment wheel is mounted in the grip through the groove.

4. The multi-purpose collapsible hand fan of claim 3, wherein: Both sides of the groove are provided with side holes, and positioning pins for positioning the adjusting wheel are provided in the side holes.

5. The multi-purpose collapsible hand fan of claim 4, wherein: The grip also includes a retractable hanging ring, which is located at the other end of the second housing.

6. The multi-purpose collapsible hand fan of claim 5, wherein: The other end of the second housing is provided with a mounting hole for installing the hanging ring, and the mounting hole is surrounded by locking points for locking and positioning the hanging ring.

7. The multi-purpose collapsible hand fan according to claim 3, wherein: The second housing also contains a battery, and the second housing is equipped with a button and a display screen, both of which are electrically connected to the battery.

8. The multi-purpose collapsible hand fan of claim 7, wherein: The fan head also includes a fan body disposed inside the air inlet shroud, the expansion cavity is further provided with a perforation, the air inlet shroud communicates with the perforation, and the fan body is electrically connected to the battery.

9. The multi-purpose collapsible hand fan according to claim 3, wherein: The rotating structure also includes a ring of gear teeth on the adjusting wheel, with tooth recesses between adjacent gear teeth. The adjusting wheel, the gear teeth, and the tooth recesses form a rotating component. The second housing has a positioning protrusion that is recessed with the tooth recesses near the adjusting wheel.

10. The multi-purpose collapsible hand fan according to claim 1, wherein: The functional components of the expansion device include a sprayer, an ice pack device, a heating device, a spotlight, an LED flashlight, or an LED germicidal lamp.

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