Energy-saving portable desktop fan with USB interface

Abstract

The utility model belongs to fan technical field especially is a kind of energy-saving USB interface portable desktop fan, including fan support and fan main body, fan main body is set on fan support.The utility model is inserted after USB connecting line is inserted USB interface, manually pushes second anti-drop block and along guide column in sliding slot sliding by slider, the trapezoidal block of second anti-drop block top will gradually approach the locking pin on first anti-drop block, when the inclined plane of trapezoidal block and the ball of locking pin end portion contact will produce an inward thrust to ball, so that locking pin moves to cavity by overcoming the elasticity of second spring, when locking pin and locking groove are aligned, locking pin is rapidly ejected under the elastic force of second spring, and is locked in locking groove, realize the relative fixation of first anti-drop block and second anti-drop block, when, USB connecting line is stably clamped between first anti-drop block and second anti-drop block, to reinforce USB connector, reduce the loosening and drop when USB connecting line is pulled.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to an energy-saving portable desktop fan with a USB interface. Background Technology

[0002] With the continuous advancement of technology and people's pursuit of a convenient life, energy-saving portable desktop fans with USB interfaces have emerged and are widely used. These fans, with their compact size, lightweight design, and portability, can meet the needs of users in various scenarios. For example, in offices, dormitories, libraries, and other spaces, simply connecting them to a computer, power bank, or other USB-powered device via USB allows users to easily turn on the fan and create a cool and comfortable environment. At the same time, their energy-saving design effectively reduces energy consumption while providing cooling, aligning with current green and environmentally friendly living concepts. Therefore, they are popular with consumers, and their market share is increasing year by year. Currently, the connection method for the USB cable in common energy-saving portable desktop fans with USB interfaces is relatively simple. Typically, the USB connector at one end of the cable is directly inserted into the USB port on the desktop fan, and the other end of the cable is then connected to other power supply devices to power the fan.

[0003] However, in actual use, desktop fans are often placed in open areas with frequent foot traffic, such as desktops, and are inevitably subject to bumps during daily use. When a desktop fan is bumped, the force is directly transmitted to the USB connector, causing it to loosen between the connector and the USB interface. Simultaneously, when using mobile devices or tidying the desktop, people may inadvertently pull on the USB cable. This pulling force also affects the USB connector, causing it to wobble within the USB interface. With increased use and frequent bumps and pulling, the connection between the USB connector and the interface gradually becomes unstable, and the connector may even loosen or detach. Once the USB connector detaches, the fan will immediately stop working, which not only affects the user experience but also causes considerable inconvenience in hot weather by suddenly losing its cooling source. Therefore, we propose an energy-saving portable desktop fan with a USB interface to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an energy-saving portable desktop fan with a USB interface, solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] An energy-saving portable desktop fan with a USB interface includes a fan bracket and a fan body. The fan body is mounted on the fan bracket. A USB interface is located on the rear side of the fan body. A first anti-detachment block is fixedly connected to the rear side of the fan body. Two sliding grooves are formed on the rear side of the fan body. Guide posts are welded between the inner walls of the two sides of the sliding grooves. Slider blocks are slidably connected to the guide posts. The front sides of the two sliders are fixedly connected to the same second anti-detachment block. A trapezoidal block is welded to the top of the second anti-detachment block. A locking groove is formed on one side of the trapezoidal block. A cavity is formed on the first anti-detachment block. A locking pin is provided in the cavity. A ball is embedded at one end of the locking pin. The other end of the locking pin extends to the outside of the first anti-detachment block and is welded to a pull block. A limit ring is welded to the locking pin. A second spring is welded between one side of the limit ring and one side of the inner wall of the cavity. The locking pin cooperates with the locking groove.

[0009] Furthermore, both the first anti-detachment block and the second anti-detachment block are provided with multiple T-shaped rods, and the ends of the T-shaped rods are fixedly connected to clamps. A first spring is welded to one side of each of the multiple T-shaped rods and to one side of the corresponding first anti-detachment block and the second anti-detachment block.

[0010] Furthermore, the first spring is movably sleeved on the corresponding T-shaped rod, and the second spring is movably sleeved on the retaining pin.

[0011] Furthermore, a insertion hole is provided on the bottom inner wall of the cavity, and the inner wall of the insertion hole does not contact the outer side of the trapezoidal block.

[0012] Furthermore, the bottom of the first anti-detachment block has two limiting grooves, and the limiting grooves are in contact with limiting posts. The ends of the limiting posts are fixedly connected to the top of the second anti-detachment block.

[0013] Furthermore, a plurality of anti-slip contact strips are fixedly connected to one side of the clamp.

[0014] Furthermore, a through hole is provided on one side of the inner wall of the cavity, and the inner wall of the through hole is slidably connected to the outer side of the locking pin.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an energy-saving portable desktop fan with a USB interface, which has the following advantages:

[0017] This invention involves manually pushing a second anti-detachment block after the user inserts the USB cable into the USB port. The second anti-detachment block slides along a guide post in a groove via a slider, gradually approaching the first anti-detachment block. During this pushing process, the trapezoidal block at the top of the second anti-detachment block gradually approaches the locking pin on the first anti-detachment block. When the inclined surface of the trapezoidal block contacts the ball at the end of the locking pin, the continued movement of the trapezoidal block generates an inward pushing force on the ball, causing the locking pin to overcome the elastic force of the second spring and move into the cavity. When the locking pin aligns with the locking groove, it quickly pops out under the elastic force of the second spring and locks into the locking groove, thus achieving relative fixation of the first and second anti-detachment blocks. At this time, the USB cable is stably clamped between the first and second anti-detachment blocks, thereby reinforcing the USB connector and reducing loosening and detachment when the USB cable is pulled. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0021] Figure 4 This utility model Figure 3 Schematic diagram of the three-dimensional structure of the second anti-detachment block after it is hidden;

[0022] Figure 5 This is a three-dimensional structural diagram of the first anti-detachment block of this utility model.

[0023] Figure 6 This is a partial three-dimensional structural diagram of the present invention.

[0024] In the diagram: 1. Fan bracket; 2. Fan body; 3. USB interface; 4. First anti-detachment block; 5. Slide groove; 6. Guide post; 7. Slider; 8. Second anti-detachment block; 9. T-shaped rod; 10. Clamping plate; 11. First spring; 12. Trapezoidal block; 13. Locking groove; 14. Cavity; 15. Locking pin; 16. Ball bearing; 17. Pull block; 18. Limiting ring; 19. Second spring; 20. Insertion hole; 21. Limiting groove; 22. Limiting post; 23. Anti-slip contact strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figures 1-6 As shown in the figure, an energy-saving portable desktop fan with a USB interface according to one embodiment of the present invention includes a fan bracket 1 and a fan body 2. The fan body 2 is mounted on the fan bracket 1. A USB interface 3 is provided on the rear side of the fan body 2. A first anti-detachment block 4 is fixedly connected to the rear side of the fan body 2. Two sliding grooves 5 are formed on the rear side of the fan body 2. Guide posts 6 are welded between the inner walls of the two sides of the sliding grooves 5. Sliding blocks 7 are slidably connected to the guide posts 6. The front sides of the two sliding blocks 7 are fixedly connected to the same first anti-detachment block 4. The second anti-detachment block 8 has a trapezoidal block 12 welded to its top. A locking groove 13 is provided on one side of the trapezoidal block 12. A cavity 14 is provided on the first anti-detachment block 4. A locking pin 15 is provided in the cavity 14. A ball bearing 16 is embedded at the end of the locking pin 15. The other end of the locking pin 15 extends to the outside of the first anti-detachment block 4 and is welded with a pull block 17. A limit ring 18 is welded on the locking pin 15. A second spring 19 is welded between one side of the limit ring 18 and one side of the inner wall of the cavity 14. The locking pin 15 cooperates with the locking groove 13.

[0028] In use, when the user inserts the USB connector at one end of the USB cable into the USB port 3 on the back of the fan body 2, and connects the other end to a power supply device such as a computer or power bank, current is transmitted through the USB port 3 to the motor inside the fan body 2. The motor starts to run under the action of the current, driving the fan blades to rotate at high speed. After the user inserts the USB cable into the USB port 3, they can manually push the second anti-detachment block 8. The second anti-detachment block 8 slides along the guide post 6 in the groove 5 via the slider 7, gradually approaching the first anti-detachment block 4. During the pushing process, the trapezoidal block 12 at the top of the second anti-detachment block 8 will gradually approach the locking pin 15 on the first anti-detachment block 4. When the inclined surface of the trapezoidal block 12 contacts the ball 16 at the end of the locking pin 15, as the trapezoidal block 12 continues to move, it will generate an inward pushing force on the ball 16, causing the locking pin 15 to overcome the elastic force of the second spring 19 and move into the cavity 14. When the locking pin 15 is aligned with the locking groove 13, the locking pin 15 will quickly pop out under the elastic force of the second spring 19 and lock into the locking groove 13, thereby achieving the relative fixation of the first anti-detachment block 4 and the second anti-detachment block 8. At this time, the USB connector is stably clamped between the first anti-detachment block 4 and the second anti-detachment block 8, thereby reinforcing the USB connector and reducing the loosening and detachment that occurs when the USB connector is pulled.

[0029] like Figure 6 As shown, in some embodiments, the first anti-detachment block 4 and the second anti-detachment block 8 are each provided with a plurality of T-shaped rods 9. The ends of the T-shaped rods 9 are fixedly connected to clamps 10. The inner walls of one side of the plurality of T-shaped rods 9 are respectively welded with a first spring 11 between one side of the corresponding first anti-detachment block 4 and the corresponding side of the second anti-detachment block 8. The first spring 11 is movably sleeved on the corresponding T-shaped rod 9, and the second spring 19 is movably sleeved on the locking pin 15.

[0030] Meanwhile, during the clamping process of the USB cable, the cable will squeeze the clamping plates 10 on both sides. After being squeezed, the clamping plates 10 will push the T-shaped rod 9 to move into the first anti-detachment block 4 and the second anti-detachment block 8. The first spring 11 will be compressed, and the elastic force generated by the first spring 11 will act in the opposite direction on the clamping plates 10, so that the clamping plates 10 tightly clamp the USB cable, further enhancing the stability of the fixation.

[0031] like Figure 4 As shown, in some embodiments, a plug hole 20 is provided on the bottom inner wall of the cavity 14, and the inner wall of the plug hole 20 does not contact the outer side of the trapezoidal block 12.

[0032] like Figure 6 As shown, in some embodiments, the bottom of the first anti-detachment block 4 has two limiting grooves 21, and the limiting grooves 21 are in contact with limiting posts 22. The ends of the limiting posts 22 are fixedly connected to the top of the second anti-detachment block 8.

[0033] The setting of the limiting post 22 limits the second anti-detachment block 8, which can be aligned.

[0034] like Figure 6 As shown, in some embodiments, a plurality of anti-slip contact strips 23 are fixedly connected to one side of the clamp 10.

[0035] The multiple anti-slip contact strips 23 provided on the clamp 10 can increase the friction between the clamp and the USB cable, prevent the cable from sliding when subjected to external force, and ensure the reliability of the fixation.

[0036] like Figure 5 As shown, in some embodiments, a through hole is provided on one side of the inner wall of the cavity 14, and the inner wall of the through hole is slidably connected to the outer side of the locking pin 15.

[0037] The locking pin 15 is designed to provide a quick and secure locking mechanism.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy saving USB interface portable table fan comprising a fan holder (1) and a fan body (2), characterized in that: The fan body (2) is mounted on the fan bracket (1). A USB interface (3) is located on the rear side of the fan body (2). A first anti-detachment block (4) is fixedly connected to the rear side of the fan body (2). Two sliding grooves (5) are opened on the rear side of the fan body (2). Guide posts (6) are welded between the inner walls of the two sides of the sliding grooves (5). Sliding blocks (7) are slidably connected to the guide posts (6). A second anti-detachment block (8) is fixedly connected to the front side of the two sliding blocks (7). A trapezoidal block (12) is welded to the top of the second anti-detachment block (8). A locking groove (13) is provided on one side of the trapezoidal block (12). A cavity (14) is provided on the first anti-detachment block (4). A locking pin (15) is provided in the cavity (14). A ball (16) is embedded at the end of the locking pin (15). The other end of the locking pin (15) extends to the outside of the first anti-detachment block (4) and is welded with a pull block (17). A limit ring (18) is welded on the locking pin (15). A second spring (19) is welded between one side of the limit ring (18) and one side of the inner wall of the cavity (14). The locking pin (15) cooperates with the locking groove (13).

2. The energy efficient USB interface portable table fan as claimed in claim 1, wherein: The first anti-detachment block (4) and the second anti-detachment block (8) are each provided with a plurality of T-shaped rods (9). The ends of the T-shaped rods (9) are fixedly connected to a clamp (10). The inner walls of one side of the plurality of T-shaped rods (9) are respectively welded to one side of the corresponding first anti-detachment block (4) and the second anti-detachment block (8) with a first spring (11).

3. The energy efficient USB interface portable table fan as claimed in claim 2, wherein: The first spring (11) is movably sleeved on the corresponding T-shaped rod (9), and the second spring (19) is movably sleeved on the locking pin (15).

4. The energy efficient USB interface portable table fan as claimed in claim 3, wherein: The cavity (14) has a plug hole (20) on its bottom inner wall. The inner wall of the plug hole (20) does not contact the outer side of the trapezoidal block (12).

5. The energy efficient USB interface portable table fan as claimed in claim 4, wherein: The bottom of the first anti-detachment block (4) has two limiting grooves (21), and the limiting grooves (21) are in contact with limiting posts (22). The end of the limiting post (22) is fixedly connected to the top of the second anti-detachment block (8).

6. The energy efficient USB interface portable table fan as claimed in claim 5, wherein: Multiple anti-slip contact strips (23) are fixedly connected to one side of the clamp (10).

7. The energy efficient USB interface portable table fan as claimed in claim 6, wherein: A through hole is provided on one side of the inner wall of the cavity (14), and the inner wall of the through hole is slidably connected to the outer side of the locking pin (15).

Images