Mobile storage device with anti-falling protection structure
By employing a multi-layered buffer structure consisting of a flexible shell filled with non-Newtonian fluid, a rigid shell, and suspended shock-absorbing components, the protection of mobile storage devices against drops and vibrations is solved, achieving efficient drop protection and rapid maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-17
AI Technical Summary
Existing mobile storage devices are prone to internal component damage and data loss when dropped, bumped, or vibrated. Existing protection solutions are limited in effectiveness or are prone to aging and failure, and cannot cope with drops from multiple angles and continuous vibrations.
It adopts a multi-level buffer structure with a flexible shell filled with non-Newtonian fluid, a rigid shell and suspended shock absorption components, combined with a modular quick-release maintenance design, to form a gradient buffer mechanism, providing six-way dynamic buffering and all-round protection.
It effectively reduces shock transmission rate, prevents damage to the storage unit, ensures data security, supports rapid maintenance, and has IP-rated dust and water resistance.
Smart Images

Figure CN224005666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile storage device technology, and in particular to a mobile storage device with a drop-proof protection structure. Background Technology
[0002] Portable storage devices (such as USB flash drives and portable solid-state drives) are widely used for data transmission and storage due to their portability and large storage capacity. However, due to the complex usage scenarios, these devices are often damaged by drops, collisions, or vibrations, resulting in internal component damage, data loss, or interface breakage, seriously affecting their lifespan and data security.
[0003] The following are the main protective solutions used in drop-proof mobile storage devices on the market: Single rigid shell: Basic protection is provided by a hard plastic or metal shell, but it can only resist minor collisions. High-speed impacts may still damage the internal storage unit. Elastic buffer layer: Some products add a rubber or silicone buffer layer inside the shell. Although it can absorb some impact energy, the buffering effect is limited and it is prone to aging and failure after long-term use. Spring shock absorption structure: A few high-end products use springs or elastic brackets to fix the storage unit. However, due to the simple structural design, it can only alleviate impacts in one direction and cannot cope with multi-angle drops or continuous vibrations. Therefore, we propose a mobile storage device with a drop-proof protection structure. Utility Model Content
[0004] This invention is a mobile storage device with a drop-proof protection structure proposed to overcome the shortcomings of existing technologies.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A mobile storage device with a drop-proof protection structure includes a storage body and a flexible shell. A connector is electrically connected to one side of the storage body. A buffer groove is provided on one side of the flexible shell. An internal groove is provided on the inner side of the flexible shell. A rigid shell is provided in the internal groove. A suspended shock-absorbing component is provided in the rigid shell. The storage body is installed in the suspended shock-absorbing component. A disassembly / assembly part is provided on one side of the flexible shell.
[0007] Preferably, the flexible shell is filled with a non-Newtonian fluid.
[0008] Preferably, a protective cap is provided on one side of the disassembly / assembly component.
[0009] Preferably, the suspended shock absorption assembly includes a mounting base, which is disposed inside the rigid shell. A buffer plate 1 and a buffer plate 2 are slidably connected to one side of the mounting base. A plurality of springs 1 and 2 are respectively disposed on one side of the buffer plate 1 and the buffer plate 2. The storage body is disposed between the buffer plate 1 and the buffer plate 2.
[0010] Preferably, a fixing groove is provided on one side of the flexible shell, the fixing groove extends through one side of the rigid shell and the mounting base, and a fixing member is threaded into the fixing groove.
[0011] Preferably, the disassembly component includes a first sealing plate, which is disposed on one side of the rigid housing. A second sealing plate is disposed on one side of the first sealing plate, and a third sealing plate is disposed on one side of the second sealing plate. Each of the first, second, and third sealing plates has a through hole on one side, and a flexible sealing frame is disposed within the through hole. A limiting plate is disposed on one side of the second sealing plate, and the limiting plate is positioned between the flexible housing and the rigid housing.
[0012] In summary, this utility model possesses a multi-level buffer protection system. Through a triple protection structure consisting of a flexible shell, an internal rigid shell, and a suspended shock-absorbing component, a gradient buffering mechanism is formed: the outer flexible shell directly absorbs the initial impact, and the non-Newtonian fluid it fills can instantly thicken during high-speed impact, effectively dispersing local stress; the middle rigid shell provides structural support, preventing shell deformation from damaging internal components; the inner suspended shock-absorbing component achieves six-directional dynamic buffering of the storage body through the elastic deformation of springs one and two and the sliding displacement of buffer plates one and two, reducing the impact transmission rate by more than 90%.
[0013] This invention possesses the intelligent impact-resistant properties of a non-Newtonian fluid. The non-Newtonian fluid filled within the flexible shell remains soft and easy to carry under normal conditions, but solidifies within milliseconds upon severe impact, forming a rigid protective layer that allows the device to withstand free-fall impacts from a height of meters without damage.
[0014] This utility model adopts a modular quick-disassembly and maintenance design. The disassembly and assembly parts achieve IP-level dustproof and waterproof protection through a multi-level nested structure of sealing plates and limiting plates. It also supports manual disassembly and maintenance. The threaded fit between the fixing groove and the fixing parts ensures a stable connection between the rigid shell and the mounting base, avoiding the loosening of parts due to vibration.
[0015] This utility model provides all-around protection for the connector, and the detachable protective cap isolates the interface from oxidation and physical damage when not in use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the exploded structure of this utility model;
[0017] Figure 2This is a cross-sectional structural diagram of the flexible shell of this utility model;
[0018] Figure 3 This is a structural schematic diagram of the disassembly and assembly parts of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of this utility model with a protective cap;
[0020] Figure 5 This is a schematic diagram of the structure of this utility model without the protective cap.
[0021] In the diagram: 1. Storage unit; 2. Connector; 3. Flexible shell; 4. Buffer groove; 5. Internal groove; 6. Rigid shell; 7. Assembly / disassembly parts; 71. Sealing plate one; 72. Sealing plate two; 73. Sealing plate three; 74. Flexible sealing frame; 75. Limiting plate; 8. Protective cap; 9. Mounting base; 10. Buffer plate one; 11. Spring one; 12. Buffer plate two; 13. Spring two; 14. Fixing groove; 15. Fixing parts. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] like Figures 1-5 As shown, a mobile storage device with a drop-proof protection structure includes a storage body 1, a flexible shell 3, and a rigid shell 6. The storage body 1 can use conventional storage modules such as USB flash drives or portable solid-state drives, and has a connector 2 electrically connected to one side. The flexible shell 3 is made of a highly elastic material such as TPU, silicone, or rubber, and has a buffer groove 4 on the side near the connector 2 to provide deformation space during a drop and prevent the connector 2 from bending.
[0024] The flexible shell 3 has an internal groove 5, and a rigid shell 6 is embedded in the internal groove 5. Preferably, the flexible shell 3 is filled with a non-Newtonian fluid, such as a shear-thickening fluid, which remains soft under normal conditions, making it easy to hold and carry; when subjected to high-speed impact, such as a drop, the fluid solidifies instantly, forming a rigid protective layer, effectively dispersing the impact force and preventing damage to the storage body 1.
[0025] The rigid housing 6 is made of high-strength materials such as ABS, PC, or metal alloy, and has an internal suspended shock-absorbing assembly, including:
[0026] Mounting base 9: Fixed to the inside of the rigid shell 6, serving as a support base for the buffer structure.
[0027] Buffer plate 10 and buffer plate 2: are slidably connected to the mounting base 9 through a slide rail structure, so that the storage body 1 can be moved and buffered in multiple directions when subjected to force.
[0028] Spring 11 and Spring 23: respectively set on one side of buffer plate 10 and buffer plate 22, providing elastic support so that the storage body 1 is in a suspended state, effectively absorbing vibration and impact energy.
[0029] The storage unit 1 is installed between buffer plate 10 and buffer plate 2 12 to form a six-way dynamic buffer structure, which can significantly reduce the impact transmission rate.
[0030] The flexible shell 3 has a fixing groove 14 on one side, which passes through the rigid shell 6 and the mounting base 9, and is threadedly connected by fasteners 15 such as screws or buckles to ensure that the structure of each layer is firmly connected and to avoid loosening due to long-term vibration.
[0031] The disassembly / assembly component 7 adopts a modular design, which facilitates maintenance and replacement of internal components. Its specific structure includes:
[0032] Sealing plate 1 (71), sealing plate 2 (72), and sealing plate 3 (73): multi-layer nested structure, improving waterproof and dustproof performance to IP67 level.
[0033] Flexible sealing frame 74: installed in the through holes of each sealing plate to enhance the sealing performance at the interface.
[0034] Limiting plate 75: It engages between the flexible housing 3 and the rigid housing 6 to prevent the disassembly / assembly component 7 from accidentally falling off.
[0035] In addition, a removable protective cap 8 is provided on one side of the disassembly component 7 to protect the connector 2 from oxidation or physical damage when not in use.
[0036] In this embodiment, when the device is subjected to an impact such as a drop: the outer flexible shell 3 first absorbs the impact, the non-Newtonian fluid thickens instantly, and the local stress is dispersed; the remaining impact force is transmitted to the rigid shell 6, and its rigid structure prevents the shell from deforming; the internal suspended shock absorption component further absorbs energy through spring 11, spring 213 and sliding buffer plate 10, buffer plate 212, so that the storage body 1 remains stable and avoids damage.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A mobile storage device with anti-falling protection structure, comprising a storage main body (1) and a flexible shell (3), one side of the storage main body (1) is electrically connected with a connector (2), characterized in that, One side of the flexible shell (3) is provided with a buffer groove (4), and the inner side of the flexible shell (3) is provided with an embedded groove (5), and the embedded groove (5) is provided with a rigid shell (6), and the rigid shell (6) is provided with a suspended damping assembly, and the storage body (1) is installed in the suspended damping assembly, and one side of the flexible shell (3) is provided with a dismounting piece (7).
2. The mobile storage device with a drop protection structure according to claim 1, wherein, The flexible shell (3) is filled with a non-Newtonian fluid.
3. The mobile storage device with a drop protection structure of claim 1, wherein, One side of the dismounting piece (7) is provided with a protective cap (8).
4. The mobile storage device with a drop protection structure of claim 1, wherein, The suspended damping assembly comprises a mounting seat (9) arranged on the inner side of the rigid shell (6), and one side of the mounting seat (9) is respectively slidably connected with a buffer plate one (10) and a buffer plate two (12), and one side of the buffer plate one (10) and the buffer plate two (12) is respectively provided with a plurality of spring one (11) and spring two (13), and the storage body (1) is arranged between the buffer plate one (10) and the buffer plate two (12).
5. The mobile storage device with a drop protection structure of claim 4, wherein, One side of the flexible shell (3) is provided with a fixing groove (14), and the fixing groove (14) penetrates one side of the rigid shell (6) and the mounting seat (9), and the fixing groove (14) is threadedly connected with a fixing piece (15).
6. The mobile storage device with a drop protection structure according to claim 5, wherein, The dismounting piece (7) comprises a sealing plate one (71) arranged on one side of the rigid shell (6), and one side of the sealing plate one (71) is provided with a sealing plate two (72), and one side of the sealing plate two (72) is provided with a sealing plate three (73), and one side of the sealing plate one (71), the sealing plate two (72) and the sealing plate three (73) is provided with a through hole, and the through hole is provided with a flexible sealing frame (74), and one side of the sealing plate two (72) is provided with a limiting plate (75), and the limiting plate (75) is arranged between the flexible shell (3) and the rigid shell (6).