Rotatable mobile hard disk

Abstract

The embodiment of the utility model relates to the technical field of mobile hard disks, and discloses a rotatable mobile hard disk which comprises a hard disk shell used for accommodating a storage device; the expansion body is provided with a plurality of communication interfaces; the rotating part is inserted into the hard disk shell and the expansion body; one end of the signal connecting line is electrically connected with the storage device, the other end of the signal connecting line is electrically connected with the communication interface, and the signal connecting line is used for transmitting data between the communication interface and the storage device; and the rotating part is rotationally connected with at least one of the hard disk shell and the expansion body to form a structure that the expansion body rotates relative to the hard disk shell. Through the mode, the rotatable mobile hard disk provided by the embodiment of the utility model is provided with multiple data transmission interfaces, and the heat dissipation efficiency is ensured while the portability is maintained.

Description

Technical Field

[0001] The present application relates to the technical field of mobile hard disks, and in particular to a rotatable mobile hard disk. Background Art

[0002] Portable hard drives have a wide range of applications, including data storage, backup, cross-device data transfer, and flexible mobile office scenarios. Currently, most portable hard drives on the market only feature a single data transfer interface, such as USB Type-A, USB Type-C, or Thunderbolt. This design may require additional adapters to adapt to different devices, which to some extent affects their device compatibility and ease of use.

[0003] Based on this, the inventors of this application envisioned that multiple data interfaces could be designed for a mobile hard disk, resulting in a multi-interface mobile hard disk to enhance compatibility. However, this multi-interface design faces a challenge: compared to a mobile hard disk with a single interface, a multi-interface hard disk will have a more serious heat dissipation problem during data transmission. A mobile hard disk with a single interface generates less heat due to its shorter transmission path, while a multi-interface hard disk has a longer transmission path, and heat accumulation on the transmission path becomes a problem that cannot be ignored. During the data reading and writing process, the hard disk generates heat, and heat is also generated when data is transmitted on the transmission line. Considering that a mobile hard disk is usually placed on a desktop during data transmission, the hard disk body will also emit a large amount of heat. This heat is difficult to dissipate effectively and is easily accumulated inside the hard disk, which not only prolongs the data transmission time, but may also damage the hard disk's read and write performance. Although adding heat dissipation components to the hard disk can alleviate this problem, it will undoubtedly sacrifice the portability of the mobile hard disk.

[0004] Therefore, how to ensure the heat dissipation efficiency of multi-interface mobile hard drives while maintaining their portability has become a key issue that needs to be overcome in current technological development. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a rotatable mobile hard disk, which has multiple data transmission interfaces and ensures heat dissipation efficiency while maintaining portability.

[0006] According to one aspect of an embodiment of the present application, a rotatable mobile hard disk is provided, which includes: a hard disk housing for accommodating a storage device; an extension body provided with multiple communication interfaces; a rotating member inserted into the hard disk housing and the extension body; a signal connection line passing through the rotating member, one end of which is electrically connected to the storage device and the other end of which is electrically connected to the communication interface, for transmitting data between the communication interface and the storage device; and a rotating member rotatably connected to at least one of the hard disk housing and the extension body, forming a structure in which the extension body rotates relative to the hard disk housing.

[0007] Preferably, the rotating member includes: a rotating shaft, which is hollow inside, one end of which is inserted into the hard disk housing and the other end of which is inserted into the extension body; and a signal connecting line that runs from one end of the rotating shaft to the other end of the rotating shaft.

[0008] Preferably, the outer side of one end of the rotating shaft is a threaded structure, and a through hole is formed on the surface of the hard disk housing. The rotating part also includes: a nut, which is fixed inside the extension body and is sleeved on the outside of the rotating shaft and is threadedly connected to the rotating shaft; a rotating ring, the outer ring of which is sleeved on the through hole, fixedly connected to the hard disk housing, and sleeved on the outside of the rotating part, and rotationally connected to the rotating part.

[0009] Preferably, the nut is fastened to the inner surface of the extension body, and a gasket is provided between the nut and the inner surface of the extension body.

[0010] Preferably, a limiting block protrudes from the through hole, and a recess adapted to the limiting block is formed on the rotating ring.

[0011] Preferably, a limiting ring protrudes from the outer surface of one end of the rotating shaft away from the threaded structure, and the annular surface of the limiting ring has a certain width, which is used to limit one end of the rotating shaft inside the hard disk housing.

[0012] Preferably, the limiting ring is provided on an end surface of the rotating shaft away from the threaded structure.

[0013] Preferably, the communication interface is provided on a side of the extension body away from the rotating shaft.

[0014] Preferably, a hot-melt nut is provided on the surface of the extension body; a side of the extension body connected to the rotating shaft is recessed to form a pit, and the hot-melt nut is embedded in the pit.

[0015] Preferably, a magnetic component is embedded in the side of the extension body connected to the rotating shaft, and a magnetic attraction component is embedded in the side of the hard disk housing connected to the rotating shaft; the magnetic attraction component is used to form a magnetic force with the magnetic component to limit the rotation of the extension body.

[0016] The embodiment of the present application sets multiple communication interfaces on the extension body, and transmits data between the communication interface and the storage device based on the signal connection line, so that the rotatable mobile hard disk can adapt to various types of data transmission interfaces, thereby improving the device compatibility and ease of use of the rotatable mobile hard disk. In addition, the signal connection line passes through the rotating part, one end of which is electrically connected to the storage device, and the other end is electrically connected to the communication interface. The wiring harness of the signal connection line can be stored by the rotating part, so that the routing of the signal connection line in the rotatable mobile hard disk is clearer; further, the rotating part is rotatably connected to at least one of the hard disk housing and the extension body, forming a structure in which the extension body rotates relative to the hard disk housing, so that when the rotatable mobile hard disk transmits data, the hard disk housing and the extension body can support each other and stand on the desktop, thereby improving the heat dissipation efficiency of the rotatable mobile hard disk.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0019] Figure 1 Schematic diagrams showing various usage modes of the rotatable mobile hard disk provided in the embodiments of the present application;

[0020] Figure 2a A schematic diagram of a rotation structure of a rotatable mobile hard disk provided in an embodiment of the present application is shown;

[0021] Figure 2b Another schematic diagram of the rotation structure of the rotatable mobile hard disk provided in an embodiment of the present application is shown;

[0022] Figure 3a A perspective view of a rotatable mobile hard disk provided by an embodiment of the present application is shown;

[0023] Figure 3b A perspective view of a rotatable mobile hard disk provided by an embodiment of the present application is shown from another angle;

[0024] Figure 4a A perspective view of the rotatable mobile hard disk provided in an embodiment of the present application is shown from another angle;

[0025] Figure 4b The embodiment of the present application provides Figure 4a Cross-sectional view in CC direction;

[0026] Figure 5a A perspective view of the rotatable mobile hard disk provided in an embodiment of the present application is shown from another angle;

[0027] Figure 5b The embodiment of the present application provides Figure 5a Cross-sectional view in the middle DD direction;

[0028] Figure 6 An exploded view of a rotating member provided in an embodiment of the present application is shown;

[0029] Figure 7A schematic structural diagram of a hard disk housing and a rotating member provided in an embodiment of the present application is shown;

[0030] Figure 8 A schematic structural diagram of an extension body and a rotating member provided in an embodiment of the present application is shown;

[0031] Figure 9 An exploded view of a magnetic attraction assembly on a rotatable mobile hard disk provided in an embodiment of the present application is shown;

[0032] Figure 10 An exploded view of a rotatable mobile hard disk provided in an embodiment of the present application is shown.

[0033] The accompanying drawings in the specific implementation manner are as follows:

[0034] 1. Rotatable mobile hard disk;

[0035] 10. Hard disk housing; 101. First side of the hard disk housing;

[0036] 11. Storage device; 12. Through hole; 121. Limit block; 13. Magnetic element;

[0037] 141. Cover; 142. Hard disk housing; 143. Upper housing; 144. SSD; 145. SSD motherboard; 146. Bottom housing;

[0038] 151. First magnet; 152. Second magnet; 153. First screw; 154. Second screw; 155. Threading spool;

[0039] 161. Third magnet; 162. Fourth magnet; 163. Third screw;

[0040] 20. Extension body; 201. First surface of the extension body; 202. Second surface of the extension body;

[0041] 21, communication interface; 211, first communication interface; 212, second communication interface; 213, third communication interface;

[0042] 22. Hot melt nut; 23. Pit; 24. Magnetic part;

[0043] 251, lower cover; 252, extended housing; 253, upper cover; 254, main board;

[0044] 261, fourth screw; 262, fifth screw; 263, sixth screw;

[0045] 30. Rotating member; 301. First end of the rotating member; 302. Second end of the rotating member;

[0046] 31. Rotating shaft; 32. Nut; 33. Washer; 34. Rotating ring; 35. Limiting ring;

[0047] 40. Signal connection line;

[0048] 50. Magnetic assembly; 51. Magnet sheet; 52. Magnetic gasket; 53. Silicone sheet. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0052] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0055] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0056] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0057] like Figures 1 to 10 As shown, an embodiment of the present application provides a rotatable mobile hard disk 1, which includes: a hard disk housing 10, for accommodating a storage device 11; an extension body 20, provided with multiple communication interfaces 21; a rotating member 30, inserted into the hard disk housing 10 and the extension body 20; a signal connection line 40, passing through the rotating member 30, one end of which is electrically connected to the storage device 11, and the other end of which is electrically connected to the communication interface 21, for transmitting data between the communication interface 21 and the storage device 11; the rotating member 30, which is rotatably connected to at least one of the hard disk housing 10 and the extension body 20, to form a structure in which the extension body 20 rotates relative to the hard disk housing 10.

[0058] The storage device 11 can be a hard disk drive (HHD), a solid state drive (SSD), a solid state hybrid drive (SSH), etc. The rotatable mobile hard disk 1 can be equipped with the storage device 11 or simply have a slot for accommodating the storage device 11. In other words, the storage device 11 can be integral with the hard disk housing 10 or be detachably connected to the hard disk housing 10.

[0059] The hard disk housing 10 includes a cover plate 141, a hard disk shell 142, an upper shell 143 and a bottom shell 146. Figure 10 In the example, the storage device 11 is an SSD, and the SSD 144 and the SSD mainboard 145 jointly complete the data reading and writing tasks.

[0060] The extension body 20 further includes a lower cover plate 251 , an extension shell 252 , an upper cover plate 253 and a main board 254 to form a shell structure of the extension body 20 , wherein the extension shell 252 and the upper cover plate 253 can be connected by a fourth screw 261 .

[0061] The communication interface 21 may be of a type such as USB (Universal Serial Bus), micro-USB (Micro-Universal Serial Bus), USB Type-C, or HDMI (High-Definition Multimedia Interface).

[0062] like Figure 3b As shown, the rotatable mobile hard disk 1 may include a first communication interface 211, a second communication interface 212, and a third communication interface 213. The three communication interfaces may be sequentially configured to be compatible with external devices such as cameras, mobile phones, and laptop computers.

[0063] like Figure 1 As shown, Figure 1 Three usage scenarios of the rotatable mobile hard disk 1 are shown in the figure. In P1, the rotatable mobile hard disk 1 is in a normal state, and the hard disk shell 10 and the extension body 20 are collinear; in P2, the rotatable mobile hard disk 1 is in a folded state. By rotating the hard disk shell 10 or the extension body 20 in P1, a certain angle is formed between the hard disk shell 10 and the extension body 20, so that the rotatable mobile hard disk 1 can be supported on the desktop based on the hard disk shell 10 and the extension body 20 to improve the heat dissipation efficiency of the rotatable mobile hard disk 1.

[0064] Preferably, a hot melt nut 22 is provided on the surface of the extension body 20; a surface of the extension body 20 connected to the rotating shaft 31 is recessed to form a pit 23, and the hot melt nut 22 is embedded in the pit 23. The hot melt nut 22 can be a commonly used English nut.

[0065] Please combine Figure 1 and Figure 3a A hot melt nut 22 that cooperates with the screw is embedded on the first surface 201 of the extension body. Figure 1 In P3, the rotatable mobile hard disk 1 can be fastened to the tripod based on the cooperative relationship between the hot-melt nut 22 and the screw, so as to accommodate a storage mode in which the external device is used normally while simultaneously performing data transmission. For example, if the external device is fixed to the tripod for recording, the rotatable mobile hard disk 1 can also be fixed to the tripod at a similar horizontal plane to the external device to perform data transmission with the external device, thereby enabling the external device to record and transmit data simultaneously.

[0066] The structure in which the extension body 20 formed by the rotating member 30 rotates relative to the hard disk housing 10 may be such that the extension body 20 is rotationally connected to the rotating member 30, and the hard disk housing 10 is rotationally connected to the rotating member 30; it may also be such that the extension body 20 is rotationally connected to the rotating member 30, and the hard disk housing 10 is fixedly connected to the rotating member 30; it may also be such that the extension body 20 is fixedly connected to the rotating member 30, and the hard disk housing 10 is rotationally connected to the rotating member 30. In the embodiment of the present application, the rotation structure of the rotating member 30 is described by taking the example of the fixed connection between the extension body 20 and the rotating member 30, and the rotational connection between the hard disk housing 10 and the rotating member 30.

[0067] See also Figure 2a and Figure 2b , Figure 2a and Figure 2b The diagrams respectively illustrate the structure in which the extension body 20 formed by the rotating member 30 rotates relative to the hard disk housing 10. Figure 2a The shaded part is as follows Figure 2a The area on the hard disk housing 10 that overlaps with the extension body 20 in the rotating structure shown; Figure 2b The shaded part is as follows Figure 2b The area on the lower extension body 20 of the rotating structure shown is folded and overlapped with the hard disk housing 10.

[0068] In such Figure 2a Under the rotating structure shown, preferably, the rotating member 30 includes: a rotating shaft 31, which is hollow inside, with one end inserted into the hard disk housing 10 and the other end inserted into the extension body 20; a signal connecting line 40, which runs from one end of the rotating shaft 31 to the other end of the rotating shaft 31.

[0069] Combine Figure 3a to Figure 5b The interior of the shaft 31 is hollow, one end of which is inserted into the hard disk housing 10 from the first surface 101 of the hard disk housing, and the other end of which is inserted into the extension body 20 from the first surface 201 of the extension body.

[0070] Preferably, the outer side of one end of the rotating shaft 31 is a threaded structure, and a through hole 12 is formed on the surface of the hard disk housing 10. The rotating member 30 also includes: a nut 32, which is fixed inside the extension body 20 and is sleeved on the outside of the rotating shaft 31 and is threadedly connected to the rotating shaft 31; a rotating ring 34, the outer ring of which is sleeved on the through hole 12, is fixedly connected to the hard disk housing 10, and is sleeved on the outside of the rotating member 30 and is rotatably connected to the rotating member 30.

[0071] Preferably, see Figure 10 The rotating shaft 31 includes a first magnet 151 , a second magnet 152 , a first screw 153 , a second screw 154 and a threading shaft 155 .

[0072] Preferably, the nut 32 is fastened to the inner surface of the extension body 20 , and a gasket 33 is provided between the nut 32 and the inner surface of the extension body 20 to improve the stability of the connection between the extension body 20 and the rotating member 30 .

[0073] Combine Figure 6 and Figure 7 Preferably, a limiting block 121 protrudes from the through hole 12, and a recess adapted to the limiting block 121 is formed on the rotating ring 34 to improve the stability of the connection between the hard disk housing 10 and the rotating member 30.

[0074] Combine Figure 4b Preferably, a limiting ring 35 protrudes from the outer surface of the end of the rotating shaft 31 away from the threaded structure, and the annular surface of the limiting ring 35 has a certain width, which is used to limit one end of the rotating shaft 31 to the inside of the hard disk housing 10 to improve the stability of the connection between the hard disk housing 10 and the rotating part 30.

[0075] Specifically, combined Figure 6 The limiting ring 35 is provided on the end surface of the rotating shaft 31 away from the threaded structure. That is, the limiting ring 35 is provided on the end surface of the first end 301 of the rotating member.

[0076] Combine Figure 3a and Figure 3b Preferably, the communication interface 21 is provided on a side of the extension body 20 away from the rotating shaft 31, that is, the communication interface 21 is provided on the second side 202 of the extension body to reduce the clutter of signal connection cables, especially when transmitting data between the rotatable mobile hard disk 1 and a mobile phone or tablet.

[0077] Preferably, a magnetic component 24 is embedded in the side of the extension body 20 connected to the rotating shaft 31, and a magnetic component 13 is embedded in the side of the hard disk housing 10 connected to the rotating shaft 31; the magnetic component 13 is used to form a magnetic force with the magnetic component 24 to limit the rotation of the extension body 20.

[0078] The specific structure of the magnetic element 13 can be found in Figure 10 ,like Figure 10 As shown, the magnetic member 13 includes a third magnet 161 , a fourth magnet 162 and a third screw 163 to form a magnetic structure fixed on the hard disk housing 10 .

[0079] Preferably, both ends of the rotating shaft 31 are respectively sleeved in a flexible wire tube to improve the electrical safety of the signal connection line 40 .

[0080] The embodiment of the present application sets multiple communication interfaces 21 on the extension body 20, and transmits data between the communication interface 21 and the storage device 11 based on the signal connection line, so that the rotatable mobile hard disk 1 can adapt to various types of data transmission interfaces, thereby improving the device compatibility and ease of use of the rotatable mobile hard disk 1. In addition, the signal connection line 40 passes through the rotating part 30, one end of which is electrically connected to the storage device 11, and the other end is electrically connected to the communication interface 21. The wiring harness of the signal connection line 40 can be stored by the rotating part 30, so that the routing of the signal connection line in the rotatable mobile hard disk 1 is clearer; further, the rotating part 30 is rotatably connected to at least one of the hard disk housing 10 and the extension body 20, forming a structure in which the extension body 20 rotates relative to the hard disk housing 10, so that when the rotatable mobile hard disk 1 transmits data, the hard disk housing 10 and the extension body 20 can support each other and stand on the desktop, thereby improving the heat dissipation efficiency of the rotatable mobile hard disk 1.

[0081] When the rotatable mobile hard disk 1 transmits data with a portable mobile device (mobile phone, tablet, etc.), the user may choose to watch some videos for entertainment. Therefore, further, the rotatable mobile hard disk 1 provided in the embodiment of the present application can also be used as a bracket to support the portable mobile device for user entertainment.

[0082] Based on this, preferably, the communication interface 21 is used to form a communication connection with an external device; the surface of the rotatable mobile hard disk 1 is also provided with a magnetic attraction component 50, which is used to attract the external device to improve the stability of the rotatable mobile hard disk 1 in supporting the external device (portable mobile device).

[0083] Combine Figure 3a~Figure 3b Preferably, the magnetic component 50 is provided on the surface of the extension body 20; and / or, the magnetic component 50 is provided on the surface of the hard disk housing 10. Specifically, the magnetic component 50 can be provided by Figure 10 The fifth screw 262 and the sixth screw 263 are fixed to the surface of the extension body 20 .

[0084] See also Figure 9 Specifically, the magnetic attraction component 50 includes: a magnet sheet 51 for attracting external devices; a magnetic gasket 52, arranged between the surface of the rotatable mobile hard disk 1 and the magnet sheet 51; a silicone sheet 53, attached to the magnet sheet 51, and located between the external device and the magnet sheet 51.

[0085] Preferably, a mounting hole is formed on the surface of the rotatable mobile hard disk 1 , the magnetic assembly 50 is disposed in the mounting hole, and the silicone sheet 53 is also used to seal the mounting hole.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A rotatable mobile hard disk, characterized in that: The rotatable mobile hard disk comprises: A hard disk housing for accommodating a storage device; An extension body, provided with multiple communication interfaces; A rotating member is inserted into the hard disk housing and the extension body; a signal connection line passing through the rotating member, with one end electrically connected to the storage device and the other end electrically connected to the communication interface, for transmitting data between the communication interface and the storage device; The rotating member is rotatably connected to at least one of the hard disk housing and the extension body, forming a structure in which the extension body rotates relative to the hard disk housing.

2. The rotatable mobile hard disk according to claim 1, wherein: The rotating member includes: a rotating shaft, which is hollow inside, one end of which is inserted into the hard disk housing, and the other end of which is inserted into the extension body; and the signal connection line runs from one end of the rotating shaft to the other end of the rotating shaft.

3. The rotatable mobile hard disk according to claim 2, wherein: The outer side of one end of the rotating shaft is a threaded structure, a through hole is formed on the surface of the hard disk housing, and the rotating member further includes: a nut, fixed inside the extension body, sleeved on the outside of the rotating shaft, and threadedly connected to the rotating shaft; The outer ring of the rotating ring is sleeved on the through hole and fixedly connected to the hard disk shell, and is sleeved outside the rotating member and rotatably connected to the rotating member.

4. The rotatable mobile hard disk according to claim 3, wherein: The nut is fastened to the inner surface of the extension body, and a gasket is provided between the nut and the inner surface of the extension body.

5. The rotatable mobile hard disk according to claim 3, wherein: A limiting block protrudes from the through hole, and a recess matched with the limiting block is formed on the rotating ring.

6. The rotatable mobile hard disk according to claim 3, wherein: A limiting ring protrudes from the outer surface of one end of the rotating shaft away from the threaded structure. The annular surface of the limiting ring has a certain width and is used to limit one end of the rotating shaft to the inside of the hard disk housing.

7. The rotatable mobile hard disk according to claim 6, wherein: The limiting ring is arranged on an end surface of the rotating shaft away from the threaded structure.

8. The rotatable mobile hard disk according to claim 2, wherein: The communication interface is arranged on a side of the extension body away from the rotating shaft.

9. The rotatable mobile hard disk according to claim 2, wherein: A hot melt nut is provided on the surface of the extension body; a surface of the extension body connected to the rotating shaft is recessed to form a pit, and the hot melt nut is embedded in the pit.

10. The rotatable mobile hard disk according to claim 2, wherein: A magnetic component is embedded in the side of the extension body connected to the rotating shaft, and a magnetic component is embedded in the side of the hard disk housing connected to the rotating shaft; the magnetic component is used to form a magnetic force with the magnetic component to limit the rotation of the extension body.

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