Portable USB flash disk structure for data storage
By designing a portable USB flash drive structure with protective, limiting, and positioning components, the problems of easily damaged USB flash drive plugs and easily lost protective covers are solved, achieving all-round protection and durability of the USB flash drive.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANXIANG ZHILIAN (HANGZHOU) TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional USB flash drives have exposed connectors that are easily damaged, separate protective covers are easily lost, and integrated protective structures are prone to shifting, making them unable to effectively protect the USB flash drive.
A portable USB flash drive structure was designed, which includes protective components, limiting components, and positioning components. The plug is protected in all directions by components such as connecting shaft, U-shaped protective shell, and rubber ring, and the stability and reliability of the protective shell are ensured by springs and positioning structure.
It effectively prevents the USB flash drive plug from deforming when dropped, avoiding damage. The protective cover is not easily lost, ensuring the safety and durability of the USB flash drive during use.
Smart Images

Figure CN224263643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of USB flash drive technology, specifically a portable USB flash drive structure for data storage. Background Technology
[0002] USB flash drive is short for USB flash drive, also known as "U-disk" due to its similar pronunciation. It's a type of flash memory, hence sometimes called a flash disk. The biggest difference between a USB flash drive and a hard drive is that it doesn't require a physical drive; it's plug-and-play, and its storage capacity far exceeds that of a floppy disk, making it extremely portable. A USB flash drive integrates disk storage technology, flash memory technology, and Universal Serial Bus technology. The USB port connects to the computer, serving as the data input / output channel; the main control chip enables the computer to recognize the USB flash drive as a removable disk, acting as its "brain"; the flash memory chip stores the data, unlike the computer's RAM, ensuring data retention even after power loss; the PCB board connects all components and provides a platform for data processing.
[0003] Traditional USB flash drives typically have exposed connectors, which are easily deformed by impact when the flash drive is dropped, thus damaging it. USB flash drives with protective structures are usually either separate or integrated. For separate structures, the protective cover needs to be removed before use, and the cover is easily lost, rendering the flash drive unprotective. While integrated structures don't have this problem, the protective structure can shift when the flash drive is dropped, exposing the connector and failing to provide effective protection. Therefore, this paper proposes a portable USB flash drive structure for data storage. Utility Model Content
[0004] The purpose of this invention is to provide a portable USB flash drive structure for data storage, addressing the issues raised in the background section. Traditional USB flash drives typically have exposed connectors, which are prone to deformation upon impact when dropped, damaging the drive. For USB flash drives with protective structures, these are usually either separate or integrated designs. With separate designs, the protective cover needs to be removed for use, and it is easily lost, rendering the drive unprotected. While integrated designs prevent loss, the protective structure may shift upon drop, exposing the connector and failing to provide effective protection.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable USB flash drive structure for data storage, comprising...
[0006] The disc body has a plug installed at one end, a protective component for plug protection is provided on the outer side of the disc body, and a cavity is provided at the rear end of the disc body, with a limit component provided inside the cavity;
[0007] The protective assembly includes a connecting shaft, a fixed shaft, and a U-shaped protective shell. The top of the cavity has an elongated groove, through which the connecting shaft passes. The fixed shaft is slidably connected to one end of the bottom of the disc. The two ends of the U-shaped protective shell are respectively installed on the outside of the connecting shaft and the fixed shaft. A protective frame is fixedly connected to one end of the inner side of the U-shaped protective shell. A rubber ring is fixedly connected inside the protective frame. A positioning assembly is provided inside the cavity.
[0008] Preferably, the inner diameter of the protective frame is larger than the outer diameter of the plug, and the rubber ring is located on the outer side of the plug.
[0009] Preferably, the limiting component includes a guide post and a first telescopic spring. The guide post is fixedly connected to the inside of the cavity and passes through the lower outer end of the connecting shaft. The first telescopic spring is movably sleeved on the outside of the guide post.
[0010] Preferably, one end of the first telescopic spring is fixedly connected to the outside of the connecting shaft, and the other end of the first telescopic spring is fixedly connected to the inside of the cavity.
[0011] Preferably, the positioning assembly includes a fixed cylinder, a second telescopic spring, and a top ball. A limiting groove is formed at the bottom of the connecting shaft. The fixed cylinder is fixedly connected to the bottom of the cavity and located below the connecting shaft. The top ball is installed inside the fixed cylinder. The second telescopic spring is fixedly connected between the outside of the top ball and the bottom of the cavity. The top ball abuts against the inside of the limiting groove.
[0012] Preferably, the cavity described above has sliding grooves on both sides, and a sealing plate is fixedly sleeved on the outside of the connecting shaft inside the cavity. The two sides of the sealing plate are slidably connected to the inside of the two sliding grooves respectively.
[0013] Preferably, the outer end of the U-shaped protective shell is provided with a mounting hole, a rotating ring is fixedly connected to the inner side of the mounting hole, and an annular groove is provided on the outer side of the connecting shaft, with the rotating ring rotatably connected to the inside of the annular groove.
[0014] Preferably, the other end of the outer side of the U-shaped protective shell is provided with a through hole, and the fixing shaft is located inside the through hole.
[0015] Preferably, a rope seat is fixedly connected to the other end of the aforementioned disc body, and an arc-shaped groove is provided at the top of the connecting shaft.
[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0017] 1. This utility model moves the U-shaped protective shell by pushing the connecting shaft. At this time, the connecting shaft moves on the guide post and compresses the first telescopic spring. When the connecting shaft cannot move, the U-shaped protective shell is rotated to move the inner protective frame to the outside of the plug. The connecting shaft is then released, and the first telescopic spring drives the connecting shaft to move and reset on the guide post. This allows the connecting shaft to move the U-shaped protective shell, and the protective frame is fitted onto the outside of the plug to protect it. This prevents the plug from deforming when it comes into contact with the ground when the USB flash drive is dropped, which could damage the USB flash drive and cause economic losses.
[0018] 2. In this invention, while the connecting shaft is reset, the top ball is pressed and moves inside the fixed cylinder. At this time, the second telescopic spring is compressed. When the limiting groove moves above the top ball, the second telescopic spring resets and drives the top ball to move inside the limiting groove, which can position the connecting shaft and prevent the connecting shaft from causing the U-shaped protective shell to move. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the right end structure of this utility model;
[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0023] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;
[0024] Figure 5 For the present utility model Figure 4 Enlarged structural diagram of area A in the middle;
[0025] Figure 6 This is a schematic diagram of the U-shaped protective shell structure of this utility model;
[0026] Figure 7 This is a schematic diagram of the disk structure of this utility model.
[0027] Explanation of reference numerals in the attached drawings: 1. Disc body; 2. Plug; 3. Cavity; 4. Connecting shaft; 5. Fixing shaft; 6. U-shaped protective shell; 7. Protective frame; 8. Rubber ring; 9. Guide post; 10. First telescopic spring; 11. Slide groove; 12. Sealing plate; 13. Annular groove; 14. Mounting hole; 15. Rotary ring; 16. Through hole; 17. Limiting groove; 18. Fixing cylinder; 19. Second telescopic spring; 20. Top ball; 21. Rope seat; 22. Arc groove. Detailed Implementation
[0028] 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.
[0029] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0030] Example
[0031] In existing technologies, the connector of a USB flash drive is usually exposed. When the flash drive is dropped, the connector is easily deformed by the impact, thus damaging the flash drive. For flash drives with protective structures, they are usually either separate or integrated. For separate structures, the protective cover needs to be removed when using the flash drive, and the protective cover is easy to lose, making the flash drive lose its protective effect. Although the integrated structure does not have the problem of loss, the protective structure may shift when the flash drive is dropped, causing the connector of the flash drive to be exposed, which cannot effectively protect the flash drive.
[0032] Please see Figure 1-7This utility model provides a technical solution: a portable USB flash drive structure for data storage, including a flash drive body 1, with a plug 2 installed at one end of the flash drive body 1. The composition of the USB flash drive is very simple, mainly consisting of a shell and a mechanism. The mechanism includes a PCB, a USB main control chip, a crystal oscillator, surface mount resistors and capacitors, a USB interface, surface mount LEDs (not all USB flash drives have this), and a FLASH (flash memory) chip. The shell can be classified by material, including ABS plastic, bamboo and wood, metal, leather, silicone, PVC, etc. USB flash drives are a mature existing technology, and will not be described in detail here. A protective component for protecting the plug 2 is provided on the outside of the flash drive body 1, and a cavity 3 is provided at the rear end of the flash drive body 1. A limit component is provided inside the cavity 3.
[0033] By setting up a protective component, the end of the plug 2 can be fully protected to prevent the plug 2 from deforming due to impact. The protective component includes a connecting shaft 4, a fixed shaft 5, and a U-shaped protective shell 6. The top of the cavity 3 has a long through groove, through which the connecting shaft 4 passes. The fixed shaft 5 is slidably connected to one end of the bottom of the disc body 1. The two ends of the U-shaped protective shell 6 are respectively installed on the outside of the connecting shaft 4 and the fixed shaft 5. A protective frame 7 is fixedly connected to one end of the inner side of the U-shaped protective shell 6. A rubber ring 8 is fixedly connected inside the protective frame 7. By pushing the connecting shaft 4 to move the U-shaped protective shell 6, and the U-shaped protective shell 6 to move the fixed shaft 5 at the bottom of the disc body 1, when the connecting shaft 4 cannot move, by pushing the U-shaped protective shell 6 to rotate around the connecting shaft 4 and the fixed shaft 5, the protective frame 7 on its inner side moves to the outside of the plug 2. Then, by the connecting shaft 4 to move the U-shaped protective shell 6, the protective frame 7 is fitted onto the outside of the plug 2 to protect the plug 2. A positioning component is set inside the cavity 3.
[0034] The inner diameter of the protective frame 7 is larger than the outer diameter of the plug 2, so that the protective frame 7 can be installed on the outer side of the plug 2. The rubber ring 8 is located on the outer side of the plug 2. The rubber ring 8 can prevent the plug 2 from colliding with the protective frame 7 and improve the protective effect of the plug 2.
[0035] By setting a limiting component, the movement of the U-shaped protective shell 6 can be prevented, and the U-shaped protective shell 6 can be driven to reset, so that the protective frame 7 can quickly move to the outside of the plug 2. The limiting component includes a guide post 9 and a first telescopic spring 10. The guide post 9 is fixedly connected to the inside of the cavity 3 and passes through the lower end of the outer side of the connecting shaft 4. The first telescopic spring 10 is movably sleeved on the outside of the guide post 9. One end of the first telescopic spring 10 is fixedly connected to the outside of the connecting shaft 4, and the other end of the first telescopic spring 10 is fixedly connected to the inside of the cavity 3. When the connecting shaft 4 moves on the guide post 9, the connecting shaft 4 compresses the first telescopic spring 10. By rotating the U-shaped protective shell 6, the protective frame 7 on its inner side moves to the outside of the plug 2, releasing the connecting shaft 4. The first telescopic spring 10 then drives the connecting shaft 4 to move and reset on the guide post 9, thereby providing protection for the USB flash drive.
[0036] To prevent the connecting shaft 4 from causing the U-shaped protective shell 6 to move, the positioning assembly includes a fixed cylinder 18, a second telescopic spring 19, and a top ball 20. A limiting groove 17 is provided at the bottom of the connecting shaft 4. The fixed cylinder 18 is fixedly connected to the bottom of the cavity 3 and located below the connecting shaft 4. The top ball 20 is installed inside the fixed cylinder 18. The second telescopic spring 19 is fixedly connected between the outside of the top ball 20 and the bottom of the cavity 3. The top ball 20 abuts against the inside of the limiting groove 17. When the connecting shaft 4 resets, the top ball 20 is pressed and moves inside the fixed cylinder 18. At this time, the second telescopic spring 19 is compressed. When the limiting groove 17 moves above the top ball 20, the second telescopic spring 19 resets and drives the top ball 20 to move into the inside of the limiting groove 17, thus positioning the connecting shaft 4.
[0037] In order to enable the connecting shaft 4 to move smoothly inside the long through groove and to prevent dust from entering the cavity 3, a sliding groove 11 is provided on both sides of the cavity 3. A sealing plate 12 is fixedly sleeved on the outside of the connecting shaft 4 inside the cavity 3. The sealing plate 12 can block the long through groove. The two sides of the sealing plate 12 are slidably connected to the inside of the two sliding grooves 11 respectively.
[0038] A mounting hole 14 is provided at one outer end of the U-shaped protective shell 6. A rotating ring 15 is fixedly connected to the inner side of the mounting hole 14. An annular groove 13 is provided on the outer side of the connecting shaft 4. The rotating ring 15 is rotatably connected inside the annular groove 13, ensuring the smooth rotation of the U-shaped protective shell 6. A through hole 16 is provided at the other outer end of the U-shaped protective shell 6. The fixed shaft 5 is located inside the through hole 16. The cooperation between the fixed shaft 5 and the through hole 16 can limit one end of the U-shaped protective shell 6. When using the USB flash drive, by pushing the connecting shaft 4, the connecting shaft 4 drives the U-shaped protective shell 6 to move outside the disk body 1. Furthermore, the U-shaped protective shell 6 drives the fixed shaft 5 to move at the bottom of the disk body 1, thereby causing the protective frame 7 and rubber ring 8 to detach from the outside of the plug 2. At this time, the U-shaped protective shell 6 is pushed to rotate with the connecting shaft 4 and the fixed shaft 5, and the protective frame 7 is moved away from the plug 2, so that the USB flash drive can be used. During the movement of the connecting shaft 4, the connecting shaft 4 slides on the guide post 9 and pushes one end of the first telescopic spring 10 to be compressed. When the U-shaped protective shell 6 is away from the outside of the plug 2, the first telescopic spring 10 can drive the connecting shaft 4 to return to its original position, so that the U-shaped protective shell 6 will not block the plug 2 due to rotation after detaching from the plug 2.
[0039] The other end of the disk body 1 is fixedly connected to a rope seat 21. A key ring or rope can pass through the rope seat 21 to facilitate carrying the USB flash drive. The top of the connecting shaft 4 is provided with an arc groove 22. By placing a finger on the arc groove 22, the connecting shaft 4 can be pushed to move, which facilitates the movement of the connecting shaft 4.
[0040] The working principle or structural principle is as follows: When using a USB flash drive, by placing a finger on the arc-shaped groove 22, the connecting shaft 4 is pushed to move. The connecting shaft 4 then moves the U-shaped protective shell 6 to the outside of the disk body 1. The U-shaped protective shell 6 also moves the fixed shaft 5 to the bottom of the disk body 1, thereby causing the protective frame 7 and rubber ring 8 to detach from the outside of the plug 2. At this time, pushing the U-shaped protective shell 6 to rotate with the connecting shaft 4 and the fixed shaft 5 and moving the protective frame 7 away from the plug 2, the USB flash drive can be used. During the movement of the connecting shaft 4, the connecting shaft 4 slides on the guide post 9 and pushes one end of the first telescopic spring 10 to be compressed. When the U-shaped protective shell 6 moves away from the outside of the plug 2, the first telescopic spring 10 can drive the connecting shaft 4 to return to its original position, so that the U-shaped protective shell 6 will not block the plug 2 due to rotation after detaching from the plug 2.
[0041] When the USB flash drive is not in use, pushing the connecting shaft 4 moves the U-shaped protective shell 6. At this time, the connecting shaft 4 moves on the guide post 9 and compresses the first telescopic spring 10. When the connecting shaft 4 cannot move, rotating the U-shaped protective shell 6 moves the inner protective frame 7 to the outside of the plug 2, releasing the connecting shaft 4. The first telescopic spring 10 then moves the connecting shaft 4 back to its original position on the guide post 9, causing the connecting shaft 4 to move the U-shaped protective shell 6. The protective frame 7 fits onto the outside of the plug 2, providing protection for the plug 2 and preventing deformation when the USB flash drive is dropped, which could damage the USB flash drive and cause economic losses. At the same time as the connecting shaft 4 resets, the top bead 20 is pressed and moves inside the fixed cylinder 18. At this time, the second telescopic spring 19 is compressed. When the limiting groove 17 moves above the top bead 20, the second telescopic spring 19 resets and moves the top bead 20 into the limiting groove 17, which can position the connecting shaft 4 and prevent the connecting shaft 4 from moving the U-shaped protective shell 6.
[0042] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A portable USB flash drive structure for data storage, characterized in that, include The disc body (1) has a plug (2) installed at one end. A protective component for protecting the plug (2) is provided on the outside of the disc body (1). A cavity (3) is provided at the rear end of the disc body (1). A limit component is provided inside the cavity (3). The protective assembly includes a connecting shaft (4), a fixed shaft (5), and a U-shaped protective shell (6). The top of the cavity (3) is provided with a long through groove. The connecting shaft (4) passes through the inside of the long through groove. The fixed shaft (5) is slidably connected to one end of the bottom of the disc (1). The two ends of the U-shaped protective shell (6) are respectively installed on the outside of the connecting shaft (4) and the fixed shaft (5). A protective frame (7) is fixedly connected to one end of the inner side of the U-shaped protective shell (6). A rubber ring (8) is fixedly connected inside the protective frame (7). A positioning assembly is provided inside the cavity (3).
2. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The inner diameter of the protective frame (7) is larger than the outer diameter of the plug (2), and the rubber ring (8) is located on the outer side of the plug (2).
3. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The limiting component includes a guide post (9) and a first telescopic spring (10). The guide post (9) is fixedly connected to the inside of the cavity (3) and passes through the lower outer side of the connecting shaft (4). The first telescopic spring (10) is movably sleeved on the outside of the guide post (9).
4. The portable USB flash drive structure for data storage according to claim 3, characterized in that, One end of the first telescopic spring (10) is fixedly connected to the outside of the connecting shaft (4), and the other end of the first telescopic spring (10) is fixedly connected to the inside of the cavity (3).
5. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The positioning assembly includes a fixed cylinder (18), a second telescopic spring (19), and a top ball (20). A limiting groove (17) is provided at the bottom of the connecting shaft (4). The fixed cylinder (18) is fixedly connected to the bottom of the cavity (3) and located below the connecting shaft (4). The top ball (20) is installed inside the fixed cylinder (18). The second telescopic spring (19) is fixedly connected between the outside of the top ball (20) and the bottom of the cavity (3). The top ball (20) abuts against the inside of the limiting groove (17).
6. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The cavity (3) has sliding grooves (11) on both sides. The outer side of the connecting shaft (4) is fixedly sleeved inside the cavity (3) with a sealing plate (12). The two sides of the sealing plate (12) are slidably connected to the inside of the two sliding grooves (11).
7. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The U-shaped protective shell (6) has an installation hole (14) at one end of its outer side. A rotating ring (15) is fixedly connected to the inner side of the installation hole (14). An annular groove (13) is provided on the outer side of the connecting shaft (4). The rotating ring (15) is rotatably connected to the inside of the annular groove (13).
8. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The other end of the outer side of the U-shaped protective shell (6) is provided with a through hole (16), and the fixed shaft (5) is located inside the through hole (16).
9. The portable USB flash drive structure for data storage according to claim 1, characterized in that, The other end of the disc (1) is fixedly connected to a rope seat (21), and the top of the connecting shaft (4) is provided with an arc groove (22).