Data transmission device

Abstract

The present application is applicable to the technical field of data transmission devices, and provides a data transmission device, which includes: a main body and a data transmission part, wherein the data transmission part includes a first data transmission interface and a data transmission line, the first data transmission interface is rotatably mounted on the main body and is electrically connected to the data transmission line, and the data transmission line is movably wound around the main body and can be retracted and extended on the main body. The data transmission device provided by the present application rotatably mounts the first data transmission interface on the main body, so that when the data transmission device provided by the present application is connected to the corresponding interface on the external device through the first data transmission interface, the main body can be rotated to make the main body avoid other interfaces on the external device, so that other interfaces on the external device can be used normally.

Description

Technical Field

[0001] The present application belongs to the technical field of data transmission devices, and more specifically, relates to a data transmission device. Background Art

[0002] A retractable data cable is a data cable that can be freely retracted and adjusted in length. It is usually composed of wires, a retractable structure and a connector. The design of this data cable is very flexible, easy to carry and store, and suitable for various scenarios, such as travel, office and home. The retractable data cable can adjust its length as needed, avoiding the inconvenience of the wire being too long or too short. After contraction, it is small in size, easy to carry, and does not take up too much space. Due to the use of a retractable structure, the data cable is usually more durable and not easy to damage. It is generally equipped with a variety of different types of connectors, such as USB, Micro USB, Type-C, etc., to adapt to different devices. The working principle of the retractable data cable mainly depends on its retractable structure. Usually, this type of data cable will have some devices similar to reels or springs inside, through which the wires can be retracted. When the data cable needs to be lengthened, a part of the wire can be pulled out. At this time, the internal reel or spring will be stretched to store elastic potential energy. When contracted, the reel or spring will automatically contract and roll the wire back, thus realizing the retractable function of the data cable.

[0003] However, when the existing retractable data cable is connected to an external device, there is a certain probability that the storage box thereof will block other interfaces of the external device, thereby affecting the normal use of other interfaces of the external device. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a data transmission device, aiming to solve the technical problem in the prior art that the retractable data cable affects the use of other interfaces of the external device.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a data transmission device is provided, which includes: a main body and a data transmission part, wherein the data transmission part includes a first data transmission interface and a data transmission line, the first data transmission interface can be rotatably installed on the main body and is electrically connected to the data transmission line, and the data transmission line can be movably wound around the main body and can be retracted and extended on the main body.

[0006] Optionally, the data transmission unit further includes a second data transmission interface, which is fixedly connected to the data transmission line, or the second data transmission interface is rotatably installed on the data transmission line, and the second data transmission interface is electrically connected to the data transmission line.

[0007] Optionally, the data transmission part also includes a rotary joint assembly, which is arranged on the main body, and the first data transmission interface is arranged on the rotary joint assembly and electrically connected to the first end of the rotary joint assembly, and the second end of the rotary joint assembly is electrically connected to the data transmission line, and data can be transmitted between the first data transmission interface and the data transmission line through the rotary joint assembly.

[0008] Optionally, a accommodating cavity and a first opening are provided on the main body, the first opening is communicated with the accommodating cavity, the data transmission line is provided in the accommodating cavity, and the data transmission line has a first state of being accommodated in the accommodating cavity and a second state of extending into the external environment through the first opening.

[0009] Optionally, the data transmission device also includes an elastic reset portion, which is arranged in the accommodating cavity and connected to the data transmission line, and is used to apply elastic force to the data transmission line so that the data transmission line can maintain the first state by the elastic force applied by the elastic reset portion without being affected by external force.

[0010] Optionally, the elastic reset part includes a spring assembly, a first end of the spring assembly is fixedly connected to the main body, and a second end of the spring assembly is fixedly connected to the data transmission line; wherein, the end close to the middle of the spring assembly is the first end of the spring assembly, and the end away from the middle of the spring assembly is the second end of the spring assembly.

[0011] Optionally, the data transmission part also includes a telescopic wire, which is arranged in the accommodating cavity, and the two ends of the telescopic wire are respectively electrically connected to the rotary joint assembly and the data transmission line. Data can be transmitted between the rotary joint assembly and the data transmission line through the telescopic wire, and the telescopic wire can be extended and retracted as the data transmission line is retracted and extended.

[0012] Optionally, there are multiple first data transmission interfaces and multiple rotary joint assemblies, and the multiple rotary joint assemblies are arranged at intervals along the circumference of the main body, and the multiple first data transmission interfaces correspond one-to-one to the multiple rotary joint assemblies; the data transmission part also includes a first adapter assembly, and the two ends of the first adapter assembly are respectively electrically connected to the multiple rotary joint assemblies and the telescopic wire, and data can be transmitted between the multiple rotary joint assemblies and the telescopic wire through the first adapter assembly.

[0013] Optionally, the data transmission part also includes a second adapter component, two ends of which are electrically connected to the data transmission line and the second data transmission interface respectively, and data can be transmitted between the data transmission line and the second data transmission interface through the second adapter component; there are multiple second data transmission interfaces, and the multiple second data transmission interfaces are arranged at intervals on the second adapter component.

[0014] Optionally, a winding structure is provided in the accommodating cavity, and the data transmission line is movably wound on the winding structure, the first end of the data transmission line is connected to the telescopic wire, and the second end of the data transmission line passes through the first opening and is connected to the second data transmission interface.

[0015] The beneficial effect of the data transmission device provided by the present application is that, compared with the prior art, the data transmission device provided by the present application rotatably mounts the first data transmission interface on the main body, so that when the data transmission device provided by the present application is connected to the corresponding interface on the external device through the first data transmission interface, the main body can be rotated to make the main body avoid other interfaces on the external device, so that the other interfaces on the external device can be used normally. At the same time, the data transmission device provided by the present application movably winds the data transmission line on the main body, so that the data transmission line provided by the present application can be retracted and extended on the main body. Moreover, since the first data transmission interface is electrically connected to the data transmission line, the data transmission device provided by the present application can realize data transmission between two external devices by connecting the first data transmission interface to one of the two external devices and connecting the data transmission line to the other of the two external devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a data transmission device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of the data transmission device after the first data transmission interface provided in an embodiment of the present application is rotated relative to the main body;

[0019] Figure 3 A schematic diagram of the structure of a data transmission device from another perspective provided in an embodiment of the present application;

[0020] Figure 4 An exploded schematic diagram of a data transmission device provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the structure of a data transmission device with some components removed provided by an embodiment of the present application;

[0022] The reference numerals in the above drawings are as follows:

[0023] 10. Main body; 11. Winding structure;

[0024] 21. First data transmission interface; 22. Data transmission line; 23. Second data transmission interface; 24. Rotary joint assembly;

[0025] 30. Elastic reset portion. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing 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 should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] As described in the background technology, a retractable data cable is a data cable that can be freely retracted and adjusted in length. It is usually composed of a wire, a retractable structure and a connector. The design of this data cable is very flexible, easy to carry and store, and suitable for various scenarios, such as travel, office and home. The retractable data cable can adjust its length as needed, avoiding the inconvenience of the wire being too long or too short. After being retracted, it is small in size, easy to carry, and does not take up too much space. Due to the use of a retractable structure, the data cable is usually more durable and not easy to damage. It is generally equipped with a variety of different types of connectors, such as USB, Micro USB, Type-C, etc., to adapt to different devices. The working principle of the retractable data cable mainly depends on its retractable structure. Usually, this data cable will have some devices similar to reels or springs inside, and the wires can be retracted through these devices. When the data cable needs to be lengthened, a part of the wire can be pulled out. At this time, the internal reel or spring will be stretched to store elastic potential energy. When it shrinks, the reel or spring will automatically shrink and roll the wire back, thus realizing the retractable function of the data cable. However, when the existing retractable data cable is connected to an external device, there is a certain probability that the storage box thereof will block other interfaces of the external device, thereby affecting the normal use of other interfaces of the external device.

[0031] See also Figures 1 to 5 As shown, in order to solve the above-mentioned problem, according to one aspect of the present application, an embodiment of the present application provides a data transmission device, the data transmission device includes: a main body 10 and a data transmission part, wherein the data transmission part includes a first data transmission interface 21 and a data transmission line 22, the first data transmission interface 21 is rotatably installed on the main body 10, and is electrically connected to the data transmission line 22, the data transmission line 22 is movably wound around the main body 10, and can be retracted and extended on the main body 10. The data transmission device provided in this embodiment rotatably mounts the first data transmission interface 21 on the main body 10, so that when the data transmission device provided in this embodiment is connected to the corresponding interface on the external device through the first data transmission interface 21, the main body 10 can be rotated to make the main body 10 avoid other interfaces on the external device, so that the other interfaces on the external device can be used normally. At the same time, the data transmission device provided in this embodiment movably winds the data transmission line 22 on the main body 10, so that the data transmission line 22 provided in this embodiment can be retracted on the main body 10, and since the first data transmission interface 21 is electrically connected to the data transmission line 22, the data transmission device provided in this embodiment can realize data transmission between two external devices by connecting the first data transmission interface 21 to one of the two external devices and connecting the data transmission line 22 to the other of the two external devices.

[0032] In a specific embodiment, by rotatably installing the first data transmission interface 21 on the main body 10, the data transmission device can adapt to different angles and positions when connecting to an external device through the first data transmission interface 21, which is convenient for users to use in different scenarios. Compared with the traditional fixed interface, which may be damaged due to incorrect angles or excessive force when plugging and unplugging, the first data transmission interface 21 provided in this embodiment is rotatably installed on the main body 10, so it can effectively reduce the risk of such damage and extend the service life of the data transmission device.

[0033] See also Figures 1 to 3 In order to enable the data transmission line 22 provided in this embodiment to be quickly connected to an external device, the data transmission unit in this embodiment further includes a second data transmission interface 23, which is fixedly connected to the data transmission line 22, or rotatably installed on the data transmission line 22, and electrically connected to the data transmission line 22. By fixedly connecting the second data transmission interface 23 provided in this embodiment to the data transmission line 22, or rotatably installing the second data transmission interface 23 on the data transmission line 22, and electrically connecting the second data transmission interface 23 to the data transmission line 22, the data transmission line 22 provided in this embodiment can be quickly connected to an external device through the second data transmission interface 23.

[0034] In a specific embodiment, the second data transmission interface 23 provided in this embodiment can be rotatably installed on the data transmission line 22. By rotatably installing the second data transmission interface 23 provided in this embodiment on the data transmission line 22, the flexibility of the second data transmission interface 23 provided in this embodiment can be effectively improved, so that the second data transmission interface can be connected to a corresponding interface with a certain angle on an external device, thereby improving the compatibility of the data transmission device provided by this embodiment.

[0035] In a specific embodiment, by rotatably installing the second data transmission interface 23 provided in this embodiment on the data transmission line 22, the data transmission line 22 can adjust the direction of the data line by rotating the second data transmission interface 23 in some environments with limited space or complex wiring, thereby avoiding entanglement or squeezing of the data transmission line.

[0036] See also Figure 4 and Figure 5In order to enable the first data transmission interface 21 provided in this embodiment to rotate relative to the main body 10 while maintaining electrical connection with the data transmission line 22, the data transmission part in this embodiment further includes a rotary joint assembly 24, the rotary joint assembly 24 is arranged on the main body 10, the first data transmission interface 21 is arranged on the rotary joint assembly 24, and is electrically connected to the first end of the rotary joint assembly 24, the second end of the rotary joint assembly 24 is electrically connected to the data transmission line 22, and data transmission can be performed between the first data transmission interface 21 and the data transmission line 22 through the rotary joint assembly 24. By arranging the rotary joint assembly 24 on the main body 10 provided in this embodiment, and arranging the first data transmission interface 21 provided in this embodiment on the rotary joint assembly 24, the first data transmission interface 21 provided in this embodiment can be rotatably installed on the main body 10 through the rotary joint assembly 24, and at the same time, by electrically connecting the first data transmission interface 21 provided in this embodiment to the first end of the rotary joint assembly 24, and electrically connecting the second end of the rotary joint assembly 24 to the data transmission line 22, the first data transmission interface 21 provided in this embodiment can be performed between the data transmission line 22 through the rotary joint assembly 24.

[0037] In an optional embodiment, the rotary joint assembly 24 provided in this embodiment is an electrical rotary joint.

[0038] See also Figures 1 to 5 In order to protect the data transmission line 22 provided in the present embodiment and to improve the service life of the data transmission line 22 provided in the present embodiment, a receiving cavity and a first opening are provided on the main body 10 in the present embodiment, the first opening is connected to the receiving cavity, the data transmission line 22 is provided in the receiving cavity, and the data transmission line 22 has a first state of being received in the receiving cavity and a second state of extending into the external environment through the first opening. By providing the receiving cavity on the main body 10 provided in the present embodiment and providing the data transmission line 22 provided in the present embodiment in the receiving cavity, the data transmission device provided in the present embodiment can protect the data transmission line 22 by receiving the data transmission line 22 in the receiving cavity, thereby effectively improving the service life of the data transmission line 22 provided in the present embodiment, and further effectively improving the service life of the data transmission device provided in the present embodiment. At the same time, by providing the first opening connected to the receiving cavity on the main body 10 provided in the present embodiment, the data transmission line 22 provided in the present embodiment can extend into the external environment through the first opening.

[0039] See also Figure 4 and Figure 5In order to enable the data transmission line 22 provided in the present embodiment to maintain the first state without being acted upon by external forces, the data transmission device further includes an elastic reset portion 30, which is disposed in the accommodating cavity and connected to the data transmission line 22, and is used to apply elastic force to the data transmission line 22, so that the data transmission line 22 can maintain the first state without being acted upon by external forces through the elastic force applied by the elastic reset portion 30. By arranging the elastic reset portion 30 in the accommodating cavity provided in the present embodiment and connecting the elastic reset portion 30 provided in the present embodiment to the data transmission line 22, the data transmission line 22 provided in the present embodiment can maintain the first state without being acted upon by external forces through the elastic force applied by the elastic reset member.

[0040] In a specific embodiment, the elastic reset part 30 in this embodiment includes a spring assembly, the first end of the spring assembly is fixedly connected to the main body 10, and the second end of the spring assembly is fixedly connected to the data transmission line 22; wherein, the end close to the middle of the spring assembly is the first end of the spring assembly, and the end away from the middle of the spring assembly is the second end of the spring assembly. By fixing the first end of the spring assembly provided in this embodiment to the main body 10, and the second end of the spring assembly to the data transmission line 22, the spring assembly provided in this embodiment can apply elastic force to the data transmission line 22 provided in this embodiment, so that the data transmission line 22 provided in this embodiment can maintain the first state through the force applied by the spring assembly without being affected by external forces. Of course, in other embodiments, the spring assembly provided in this embodiment can also be a tension spring, a compression spring, or the like, which can apply elastic force to the data transmission line 22 and enable the data transmission line 22 to maintain the first state without being affected by external forces.

[0041] In an optional embodiment, in order to enable the data transmission line 22 provided in this embodiment to maintain an electrical connection with the selected rotary joint assembly 24 in real time during the process of retraction and extension, the data transmission part in this embodiment also includes a telescopic wire, which is arranged in the accommodating cavity, and the two ends of the telescopic wire are respectively electrically connected to the rotary joint assembly 24 and the data transmission line 22, and data transmission can be performed between the rotary joint assembly 24 and the data transmission line 22 through the telescopic wire, and the telescopic wire can be extended and retracted as the data transmission line 22 is retracted and extended. By electrically connecting the two ends of the telescopic wire provided in this embodiment to the rotary joint assembly 24 and the data transmission line 22, respectively, the rotary joint assembly 24 provided in this embodiment and the data transmission line 22 can be performed through the telescopic wire. At the same time, since the telescopic wire provided in this embodiment can be extended and retracted as the data transmission line 22 is retracted and extended, the data transmission line 22 provided in this embodiment can maintain an electrical connection with the selected rotary joint assembly 24 in real time during the process of retraction and extension through the telescopic wire.

[0042] In an optional embodiment, the telescopic wire spiral cable provided in this embodiment, of course, in other embodiments, the telescopic wire provided in this embodiment may also be other telescopic wires.

[0043] In an optional embodiment, in order to improve the versatility of the data transmission device provided by this embodiment, there are multiple first data transmission interfaces 21 and rotary joint assemblies 24 in this embodiment, and the multiple rotary joint assemblies 24 are arranged at circumferential intervals along the main body 10, and the multiple first data transmission interfaces 21 correspond one-to-one to the multiple rotary joint assemblies 24; the data transmission part also includes a first adapter assembly, and the two ends of the first adapter assembly are respectively electrically connected to the multiple rotary joint assemblies 24 and the telescopic wire, and data can be transmitted between the multiple rotary joint assemblies 24 and the telescopic wire through the first adapter assembly. By setting the first data transmission interface 21 and the rotary joint assembly 24 provided in the present embodiment to be multiple, and setting the multiple rotary joint assemblies 24 at circumferential intervals along the main body 10, the multiple first data transmission interfaces 21 correspond to the multiple rotary joint assemblies 24 one by one, so that the data transmission device provided in the present embodiment can achieve connection with different types of external devices by setting the multiple first data transmission interfaces 21 as different types of interfaces, thereby effectively improving the versatility of the data transmission device of the present embodiment. At the same time, by electrically connecting the two ends of the first adapter assembly provided in the present embodiment to the multiple rotary joint assemblies 24 and the telescopic wires, respectively, the multiple rotary joint assemblies 24 provided in the present embodiment and the telescopic wires can transmit data through the first adapter assembly.

[0044] In an optional embodiment, in order to improve the versatility of the data transmission device provided in this embodiment, the data transmission part in this embodiment also includes a second adapter component, the two ends of the second adapter component are electrically connected to the data transmission line 22 and the second data transmission interface 23 respectively, and the data transmission line 22 and the second data transmission interface 23 can be transmitted through the second adapter component; there are multiple second data transmission interfaces 23, and multiple second data transmission interfaces 23 are arranged at intervals on the second adapter component. By electrically connecting the two ends of the second adapter component provided in this embodiment to the data transmission line 22 and the second data transmission interface 23 respectively, the data transmission line 22 provided in this embodiment and the second data transmission interface 23 can be transmitted through the second adapter component. At the same time, by setting the second data transmission interface 23 provided in this embodiment to multiple, and setting the multiple second data transmission interfaces 23 at intervals on the second adapter component, the data transmission device provided in this embodiment can achieve connection with different types of external devices by setting the multiple second data transmission interfaces 23 as different types of interfaces, thereby effectively improving the versatility of the data transmission device of this embodiment.

[0045] In a specific embodiment, a winding structure 11 is provided in the accommodating cavity in this embodiment, and the data transmission line 22 is movably wound on the winding structure 11, the first end of the data transmission line 22 is connected to the telescopic wire, and the second end of the data transmission line 22 passes through the first opening and is connected to the second data transmission interface 23.

[0046] In an optional embodiment, the winding structure 11 provided in this embodiment is a winding ring, the spring assembly provided in this embodiment is arranged in the winding ring, and at least one clearance gap is provided on the winding ring provided in this embodiment, and the data transmission line 22 provided in this embodiment can pass through the clearance gap to connect with the spring assembly.

[0047] In an optional embodiment, the first data transmission interface 21 provided in this embodiment is a USB-A interface. Of course, in other embodiments, the first data transmission interface 21 provided in this embodiment may also be other types of interfaces such as a Type-C interface. In the case where there are multiple first data transmission interfaces 21 provided in this embodiment, the multiple first data transmission interfaces 21 provided in this embodiment may also be a combination of interfaces such as a USB-A interface and a Type-C interface.

[0048] In an optional embodiment, the second data transmission interface 23 provided in this embodiment is a Micro interface. Of course, in other embodiments, the second data transmission interface 23 provided in this embodiment may also be other types of interfaces such as a Type-C interface and a lighting interface. In the case where there are multiple second data transmission interfaces 23 provided in this embodiment, the multiple second data transmission interfaces 23 provided in this embodiment may also be a combination of USB interfaces such as a Micro interface, a Type-C interface, and a lighting interface.

[0049] In summary, the implementation of the data transmission device provided in this embodiment has at least the following beneficial technical effects: the data transmission device provided in this embodiment is rotatably mounted on the main body 10 by the first data transmission interface 21, so that when the data transmission device provided in this embodiment is connected to the corresponding interface on the external device through the first data transmission interface 21, the main body 10 can be rotated to make the main body 10 avoid other interfaces on the external device, so that the other interfaces on the external device can be used normally. At the same time, the data transmission device provided in this embodiment is movably wound around the main body 10 by the data transmission line 22, so that the data transmission line 22 provided in this embodiment can be retracted on the main body 10, and since the first data transmission interface 21 is electrically connected to the data transmission line 22, the data transmission device provided in this embodiment can realize data transmission between two external devices by connecting the first data transmission interface 21 to one of the two external devices and connecting the data transmission line 22 to the other of the two external devices.

[0050] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A data transmission device, characterized in that: The data transmission device comprises: Subject (10); A data transmission unit, the data transmission unit comprising a first data transmission interface (21) and a data transmission line (22); the first data transmission interface (21) is rotatably mounted on the main body (10) and is electrically connected to the data transmission line (22); the data transmission line (22) is movably wound around the main body (10) and can be retracted and extended on the main body (10).

2. The data transmission device according to claim 1, characterized in that: The data transmission unit further comprises a second data transmission interface (23), wherein the second data transmission interface (23) is fixedly connected to the data transmission line (22), or the second data transmission interface (23) is rotatably mounted on the data transmission line (22), and the second data transmission interface (23) is electrically connected to the data transmission line (22).

3. The data transmission device according to claim 2, characterized in that: The data transmission unit further comprises a rotary joint assembly (24), wherein the rotary joint assembly (24) is arranged on the main body (10), the first data transmission interface (21) is arranged on the rotary joint assembly (24) and is electrically connected to a first end of the rotary joint assembly (24), the second end of the rotary joint assembly (24) is electrically connected to the data transmission line (22), and data transmission can be performed between the first data transmission interface (21) and the data transmission line (22) through the rotary joint assembly (24).

4. The data transmission device according to claim 3, characterized in that: The main body (10) is provided with a receiving cavity and a first opening, the first opening is communicated with the receiving cavity, the data transmission line (22) is arranged in the receiving cavity, and the data transmission line (22) has a first state of being accommodated in the receiving cavity and a second state of extending into the external environment through the first opening.

5. The data transmission device according to claim 4, characterized in that: The data transmission device further comprises an elastic reset portion (30), which is arranged in the accommodating cavity and connected to the data transmission line (22) and is used to apply an elastic force to the data transmission line (22), so that the data transmission line (22) can maintain the first state by the elastic force applied by the elastic reset portion (30) without being affected by external forces.

6. The data transmission device according to claim 5, characterized in that: The elastic reset portion (30) comprises a spring assembly, a first end of the spring assembly is fixedly connected to the main body (10), and a second end of the spring assembly is fixedly connected to the data transmission line (22); Among them, the end close to the middle of the clockwork assembly is the first end of the clockwork assembly, and the end away from the middle of the clockwork assembly is the second end of the clockwork assembly.

7. The data transmission device according to any one of claims 4 to 6, characterized in that: The data transmission part also includes a telescopic wire, which is arranged in the accommodating cavity, and the two ends of the telescopic wire are respectively electrically connected to the rotary joint assembly (24) and the data transmission line (22), and data can be transmitted between the rotary joint assembly (24) and the data transmission line (22) through the telescopic wire, and the telescopic wire can be extended and retracted as the data transmission line (22) is retracted and extended.

8. The data transmission device according to claim 7, characterized in that: There are a plurality of the first data transmission interfaces (21) and the plurality of rotary joint assemblies (24), the plurality of rotary joint assemblies (24) are arranged at intervals along the circumference of the main body (10), and the plurality of the first data transmission interfaces (21) correspond one to one to the plurality of the rotary joint assemblies (24); The data transmission unit further comprises a first adapter component, two ends of which are respectively electrically connected to the plurality of rotary joint components (24) and the telescopic wire, and data can be transmitted between the plurality of rotary joint components (24) and the telescopic wire through the first adapter component.

9. The data transmission device according to claim 8, characterized in that: The data transmission unit further comprises a second adapter component, two ends of which are electrically connected to the data transmission line (22) and the second data transmission interface (23) respectively, and data transmission can be performed between the data transmission line (22) and the second data transmission interface (23) via the second adapter component; There are a plurality of second data transmission interfaces (23), and the plurality of second data transmission interfaces (23) are arranged at intervals on the second adapter component.

10. The data transmission device according to claim 9, characterized in that: A winding structure (11) is provided in the accommodating cavity, the data transmission line (22) is movably wound on the winding structure (11), the first end of the data transmission line (22) is connected to the telescopic wire, and the second end of the data transmission line (22) passes through the first opening and is connected to the second data transmission interface (23).

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