Rotatable mobile hard disk

Abstract

The embodiment of the invention 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 invention 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] Mobile hard disks have a wide range of applications, and are widely used in data storage, data backup, cross-device data transmission, and flexible mobile office scenarios. Currently, most mobile hard disks on the market are only equipped with a single data transmission 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 its device compatibility and ease of use.

[0003] Based on this, the inventor of the present application envisions that multiple data interfaces can be designed for a mobile hard disk to obtain a multi-interface mobile hard disk to enhance compatibility. However, this multi-interface design faces a challenge: compared with a mobile hard disk with a single interface, a multi-interface hard disk will have a more serious heat dissipation problem during data transmission. Due to the short transmission path, the mobile hard disk with a single interface generates less heat, while the heat accumulation on the transmission path of a multi-interface hard disk becomes a problem that cannot be ignored due to the extended transmission path; during the data reading and writing process, the hard disk will generate heat, and heat will also be generated when the data is transmitted on the transmission line. Considering that the mobile hard disk is usually placed on the desktop during data transmission, the hard disk body will also emit a lot of heat. This heat is difficult to dissipate effectively and is easy to accumulate inside the hard disk, which not only prolongs the data transmission time, but also may damage the read and write performance of the hard disk. Although adding a heat dissipation component 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 a multi-interface mobile hard disk while maintaining its portability has become a key issue that needs to be overcome in current technological development. Summary of the invention

[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, and the rotatable mobile hard disk includes: a hard disk housing for accommodating a storage device; an extension body, provided with a plurality of 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, to form a structure in which the extension body rotates relative to the hard disk housing.

[0007] Preferably, the rotating member comprises: 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 connection 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 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 shaft and is threadedly connected to the 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 is rotatably 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 depression matched with 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 arranged on an end surface of the rotating shaft away from the threaded structure.

[0013] Preferably, the communication interface is arranged 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 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.

[0015] Preferably, a magnetic part is embedded in one side of the extension body connected to the rotating shaft, and a magnetic part is embedded in one side of the hard disk housing connected to the rotating shaft, and the magnetic part is used to form a magnetic force with the magnetic part to limit the rotation of the extension body; the communication interface is used to form a communication connection with an external device, and the surface of the rotatable mobile hard disk is also provided with a magnetic attraction component, and the magnetic attraction component is used to attract the external device; the magnetic attraction component is arranged on the surface of the extension body, and / or the magnetic attraction component is arranged on the surface of the hard disk housing; the magnetic attraction component includes: a magnet sheet, used to attract the external device; a magnetic gasket, arranged between the surface of the rotatable mobile hard disk and the magnet sheet; a silicone sheet, adhered to the magnet sheet, and located between the external device and the magnet sheet.

[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, improves the device compatibility and ease of use of the rotatable mobile hard disk, and the signal connection line passes through the rotating member, 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 member, so that the routing of the signal connection line in the rotatable mobile hard disk is clearer; further, 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, 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 of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying 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 rotating 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 the embodiment of the present application is shown;

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

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

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

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

[0026] Figure 5a A three-dimensional view of the rotatable mobile hard disk provided in the embodiment of the present application is shown at 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 7 A schematic diagram of the structure of a hard disk housing and a rotating member provided in an embodiment of the present application is shown;

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

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

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

[0033] The reference numerals 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 attraction member;

[0037] 141, cover plate; 142, hard disk housing; 143, upper housing; 144, SSD; 145, SSD mainboard; 146, bottom housing;

[0038] 151, first magnet; 152, second magnet; 153, first screw; 154, second screw; 155, threading shaft;

[0039] 161, a third magnet; 162, a fourth magnet; 163, a 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. gasket; 34. rotating ring; 35. limiting ring;

[0047] 40. Signal connection line;

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

[0049] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used 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 technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood 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 the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not 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 clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the 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, used to accommodate a storage device 11; an extension body 20, provided with a plurality of 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, so as to form a structure in which the extension body 20 rotates relative to the hard disk housing 10.

[0058] The storage device 11 may be a hard disk drive (HHD), a solid state drive (SSD), a hybrid hard disk (SSH), etc. The rotatable mobile hard disk 1 may be provided with the storage device 11, or may only have a card slot for accommodating the storage device 11. That is, the storage device 11 may be integrated with the hard disk housing 10, or may be detachably connected to the hard disk housing 10.

[0059] The hard disk housing 10 includes a cover plate 141, a hard disk housing 142, an upper housing 143 and a bottom housing 146. Fig.10 In the description, the storage device 11 is taken as an SSD as an example, 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 interface type of the communication interface 21 can be USB (Universal Serial Bus), micro-USB (Micro-Universal Serial Bus), USB Type-C, HDMI (High-Definition Multimedia Interface), etc.

[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 P1, the rotatable mobile hard disk 1 is in a normal state, and the hard disk housing 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 housing 10 or the extension body 20 in P1, a certain angle is formed between the hard disk housing 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 housing 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 set as a commonly used British nut.

[0065] Please combine Figure 1 and Figure 3a A hot melt nut 22 cooperating 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 matching relationship between the hot melt nut 22 and the screw rod to adapt to the storage mode of the external device performing data transmission while in normal use. For example, if the external device is fixed on the tripod for filming, the rotatable mobile hard disk 1 can also be fixed on the tripod at a level close to the external device to perform data transmission with the external device, so that the external device can perform data transmission while filming.

[0066] The structure of the extension body 20 formed by the rotating member 30 rotating relative to the hard disk housing 10 may be 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 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 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 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.

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

[0068] In such Figure 2a In the rotating structure shown, preferably, the rotating member 30 includes: a rotating shaft 31, which is hollow inside, one end of which is inserted into the hard disk housing 10 and the other end of which is 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] Combination Figure 3a to Figure 5bThe interior of the rotating 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 Fig.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] Combination Figure 6 and Figure 7 Preferably, a limiting block 121 protrudes from the through hole 12 , and a depression matching 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] Combination Figure 4b Preferably, a limiting ring 35 protrudes from the outer surface of one 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 member 30.

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

[0076] Combination Figure 3a and Figure 3b Preferably, the communication interface 21 is arranged on a side of the extension body 20 away from the rotation axis 31, that is, the communication interface 21 is arranged on the second side 202 of the extension body to reduce the disorder of the signal connection cable, especially when transmitting data between the rotatable mobile hard disk 1 and the mobile phone or tablet.

[0077] Preferably, a magnetic component 24 is embedded in the side of the extension body 20 connected to the shaft 31 , and a magnetic component 13 is embedded in the side of the hard disk housing 10 connected to the 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 attraction member 13 can be found in Fig.10 ,like Fig.10 As shown, the magnetic attraction member 13 includes a third magnet 161 , a fourth magnet 162 and a third screw 163 to form a magnetic attraction 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, improve the device compatibility and ease of use of the rotatable mobile hard disk 1, and the signal connection line 40 passes through the rotating member 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 member 30, so that the routing of the signal connection line in the rotatable mobile hard disk 1 is clearer; further, the rotating member 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 suction 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] Combination Figure 3a to Figure 3b Preferably, the magnetic component 50 is disposed on the surface of the extension body 20; and / or, the magnetic component 50 is disposed on the surface of the hard disk housing 10. Specifically, the magnetic component 50 can be Fig.10 The fifth screw 262 and the sixth screw 263 are fixed to the surface of the extension body 20 .

[0084] See also Fig. 9 Specifically, the magnetic attraction component 50 includes: a magnet sheet 51 for attracting an external device; a magnetic attraction gasket 52, disposed between the surface of the rotatable mobile hard disk 1 and the magnet sheet 51; and a silicone sheet 53, adhered 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 attraction component 50 is disposed in the mounting hole, and the silicone sheet 53 is also used to close 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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, used to accommodate the storage device; An extension body, provided with a plurality of communication interfaces; A rotating member, inserted into the hard disk housing and the extension body; A signal connection line passes 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, and is used to transmit 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, characterized in that: The rotating member comprises: a rotating shaft, the interior of the rotating shaft is hollow, one end of which is inserted into the hard disk housing, and the other end is inserted into the extension body; 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, characterized in that: 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 outside the shaft, and threadedly connected to the shaft; The outer ring of the rotating ring is sleeved on the through hole, fixedly connected to the hard disk housing, and sleeved outside the rotating member, and rotatably connected to the rotating member.

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

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

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

8. The rotatable mobile hard disk according to claim 2, characterized in that: 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, characterized in that: 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, characterized in that: A magnetic component is embedded in one side of the extension body connected to the rotating shaft, and a magnetic attraction component is embedded in one side of the hard disk housing connected to the rotating shaft, and the magnetic attraction component is used to form a magnetic force with the magnetic component to limit the rotation of the extension body; The communication interface is used to form a communication connection with an external device, and a magnetic attraction component is also provided on the surface of the rotatable mobile hard disk, and the magnetic attraction component is used to attract the external device; The magnetic attraction component is arranged on the surface of the extension body, and / or the magnetic attraction component is arranged on the surface of the hard disk housing; The magnetic attraction component includes: a magnet sheet for attracting the external device; a magnetic attraction gasket arranged between the surface of the rotatable mobile hard disk and the magnet sheet; and a silicone sheet attached to the magnet sheet and located between the external device and the magnet sheet.

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