A connecting link, a watch strap and a wearable device thereof

Abstract

The present invention discloses a connecting link, a watch strap and a wearable device thereof, wherein the connecting link comprises a link body and a support member, the ends extending upward on both sides of the link body are respectively provided with corresponding first connecting parts and second connecting parts, the link body and the first connecting parts and the second connecting parts form a U-shaped structure; the support member is located in the middle of the U-shaped structure, the two ends of the support member are respectively connected to the first connecting part and the second connecting part, and a receiving cavity is formed between the link body and the support member. The watch strap formed by the new connecting link provided by the present invention can be well adapted to a flexible screen wearable device, the deformation degree of which is controllable, and the self-preventive anti-bending and anti-twisting can well adapt to the user's hand shape, providing an excellent user experience. On the other hand, the connecting link can be integrally formed by a process of powder metallurgy or wire cutting plus partial CNC machining, so that the cost of the wearable device is relatively low.

Description

Technical Field

[0001] The present invention relates to the field of terminal technology, and more specifically, to a connecting link, a watch strap and a wearable device thereof. Background Art

[0002] With the development of technology, wearable devices that combine functions such as sports, sleep, heart rate monitoring, transportation, payment, and reminders have gradually become standard for modern people.

[0003] In the related art, the watch straps adapted to wearable devices use silicone sleeves or hinged watch straps. Under the premise that the flexible screen technology has been well developed and broken through, its low power consumption and bendable characteristics are suitable for any wearable device, which will bring users a very amazing experience. In the process of existing wearable devices developing in the direction of bendability and foldability, higher requirements are also put forward for the watch straps adapted to wearable devices. The existing silicone sleeves or hinged watch straps cannot be well adapted to the flexible screens of wearable devices. On the other hand, the watch straps adapted to flexible screen wearable devices are also required to adapt to the user's hand shape, so as to bring users an excellent experience. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the silicone sleeve or hinged strap in the related technology cannot be well adapted to the flexible screen of the wearable device and adapt to the user's hand shape, thereby providing a connecting link, a strap and a wearable device thereof.

[0005] In order to solve the above technical problems, the present invention provides a connecting link, characterized in that it comprises: a link body and a support member, the ends extending upward on both sides of the link body are respectively provided with corresponding first connecting parts and second connecting parts, and the link body and the first connecting parts and the second connecting parts form a U-shaped structure;

[0006] The support member is located in the middle of the U-shaped structure, two ends of the support member are respectively connected to the first connecting portion and the second connecting portion, and an accommodating cavity is formed between the chain link body and the support member.

[0007] Further, the two ends of the first connecting portion are respectively provided with first pin holes, and the two ends of the second connecting portion are respectively provided with second pin holes corresponding to the first pin holes;

[0008] The connecting link is movably connected to an adjacent connecting link through the first pin hole, the second pin hole and a pin.

[0009] Furthermore, a first recess is provided at one end of the outer side of the first connecting part, and the first recess is formed by the first connecting part being recessed inwardly, and a second recess corresponding to the first recess is provided at one end of the outer side of the second connecting part; when the connecting link is assembled with an adjacent connecting link, the other end of the outer side of the first connecting part is embedded in the first recess of the adjacent connecting link, and the other end of the outer side of the second connecting part is embedded in the second recess of the adjacent connecting link.

[0010] Furthermore, the first concave platform and the middle part of the first connecting portion form a first inner arc end surface, and a first outer arc end surface matching the first inner arc end surface is provided at the end of the first connecting portion opposite to the first concave platform;

[0011] The second concave platform and the middle part of the second connecting portion form a second inner arc end surface corresponding to the first concave platform, and a second outer arc end surface matched with the second inner arc end surface and corresponding to the first outer arc end surface is provided at the end of the second connecting portion opposite to the second concave platform.

[0012] Furthermore, a first limiting protrusion is arranged on the inner side of the first connecting portion, and a second limiting protrusion corresponding to the first limiting protrusion is arranged on the inner side of the second connecting portion.

[0013] Furthermore, a first limiting opening adapted to the first limiting protrusion is provided on the edge of the first recess, and a second limiting opening corresponding to the first limiting opening and adapted to the second limiting protrusion is provided on the second recess; wherein the size of the first limiting opening is larger than the size of the first limiting protrusion, and the size of the second limiting opening is larger than the size of the second limiting protrusion.

[0014] When the connecting link is assembled with an adjacent connecting link, the first limiting protrusion of the connecting link is embedded in the first limiting opening of the adjacent connecting link, and the second limiting protrusion of the connecting link is embedded in the second limiting opening of the adjacent connecting link, so as to realize the limitation between the connecting link and the adjacent connecting link.

[0015] Further, in the first state, the upper end surface of the first limit opening abuts against the upper end surface of the first limit protrusion of the adjacent connecting link, and the upper end surface of the second limit opening abuts against the upper end surface of the second limit protrusion of the adjacent connecting link; and / or, in the second state, the lower end surface of the first limit opening abuts against the lower end surface of the first limit protrusion of the adjacent connecting link, and the lower end surface of the second limit opening abuts against the lower end surface of the second limit protrusion of the adjacent connecting link.

[0016] Furthermore, a first slot opening upward is formed between the support member and the first limiting protrusion and the end of the first connecting portion corresponding to the first recess, and a second slot corresponding to the first slot is formed between the support member and the second limiting protrusion and the end of the second connecting portion corresponding to the second recess.

[0017] Furthermore, a locking protrusion is respectively provided at the opening of the first locking slot and the opening of the second locking slot.

[0018] Furthermore, an open groove is provided on the upper end surface of the support member.

[0019] Furthermore, the present invention also provides a watch strap, comprising: a plurality of the above-mentioned connecting links and pins, wherein the connecting links are movably connected via the pins.

[0020] Furthermore, the present invention also provides a wearable device, including: a watch strap and a flexible display screen, wherein the watch strap includes the above-mentioned watch strap, and the flexible display screen is fixed on the watch strap.

[0021] Beneficial effects:

[0022] The present invention proposes a connecting link, a watch strap and a wearable device thereof, wherein the connecting link comprises a link body and a support member, the ends extending upward on both sides of the link body are respectively provided with corresponding first connecting parts and second connecting parts, the link body and the first connecting parts and the second connecting parts form a U-shaped structure; the support member is located in the middle of the U-shaped structure, the two ends of the support member are respectively connected to the first connecting part and the second connecting part, and a receiving cavity is formed between the link body and the support member. The watch strap formed by the new connecting link provided by the present invention can be well adapted to a flexible screen wearable device, the deformation degree of which is controllable, and the strap itself can prevent folding and twisting, and can well adapt to the hand shapes of various users, providing an excellent user experience. On the other hand, the connecting link can be integrally formed by a process of powder metallurgy or wire cutting plus partial CNC machining, so that the cost of the obtained wearable device is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 A further schematic diagram of the structure of a wristband for implementing various embodiments of the present invention;

[0025] Figure 2 For Figure 1 Schematic diagram of the wireless communication system of the wristband shown;

[0026] Figure 3A schematic diagram of the structure of a connecting link provided by an embodiment of the present invention;

[0027] Figure 4 A cross-sectional view of a connecting link provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a first state of a watch strap composed of connected links provided by an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of a second state of a watch strap composed of connected links provided by an embodiment of the present invention;

[0030] Figure 7 for Figure 5 A bottom view of the connecting link is provided;

[0031] Figure 8 A schematic diagram of the structure of a wearable device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0033] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0034] The wearable device of the present invention may be a terminal with a bendable property, the display screen of the wearable device may be a flexible screen, and the wearable device of the present invention may be implemented in various forms. For example, the wearable device described in the present invention may be a wearable device such as a mobile phone, a portable media player (PMP), a navigation device, a smart bracelet, etc.

[0035] The following description will be made by taking a wristband as an example, and those skilled in the art will appreciate that, in addition to components specifically used for mobile purposes, the configuration according to the embodiments of the present invention can also be applied to fixed-type terminals.

[0036] See also Figure 1, which is a hardware structure diagram of a wristband for implementing various embodiments of the present invention, the wristband 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, A / V (audio / video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111 and other components. Those skilled in the art can understand that Figure 1 The bracelet structure shown in the figure does not constitute a limitation on the bracelet, and the bracelet may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0037] Combine the following Figure 1 A detailed introduction to each component of the bracelet:

[0038] The radio frequency unit 101 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving the downlink information of the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution) and TDD-LTE (Time Division Duplexing-Long Term Evolution), etc.

[0039] WiFi is a short-range wireless transmission technology. The wristband can help users send and receive emails, browse web pages and access streaming media through the WiFi module 102. It provides users with wireless broadband Internet access. Figure 1 The WiFi module 102 is shown, but it is understandable that it is not a necessary component of the bracelet and can be omitted as needed without changing the essence of the invention.

[0040] The audio output unit 103 can convert the audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the wristband 100 is in a call signal receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. Moreover, the audio output unit 103 can also provide audio output related to a specific function performed by the wristband 100 (for example, a call signal receiving sound, a message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0041] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 106. The image frame processed by the graphics processor 1041 can be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a telephone call mode, a recording mode, a voice recognition mode, and other operating modes, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0042] The bracelet 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the bracelet 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can also be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0043] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0044] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the bracelet. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 1071 or near the touch panel 1071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 110, and can receive and execute the command sent by the processor 110. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Specifically, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0045] Furthermore, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of the touch event. Then, the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Figure 1 In the embodiment, the touch panel 1071 and the display panel 1061 are used as two independent components to realize the input and output functions of the bracelet. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the bracelet, which is not limited here.

[0046] The interface unit 108 is used as an interface through which at least one external device can be connected to the wristband 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements in the wristband 100 or may be used to transmit data between the wristband 100 and an external device.

[0047] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0048] The processor 110 is the control center of the wristband, which uses various interfaces and lines to connect the various parts of the entire wristband, and executes various functions of the wristband and processes data by running or executing software programs and / or modules stored in the memory 109, and calling the data stored in the memory 109, so as to monitor the wristband as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0049] The bracelet 100 may also include a power supply 111 (such as a battery) for supplying power to each component. Preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, so that functions such as charging, discharging, and power consumption management can be implemented through the power management system.

[0050] although Figure 1 Not shown, the bracelet 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0051] To facilitate understanding of the embodiments of the present invention, the communication network system on which the wristband of the present invention is based is described below.

[0052] See also Figure 2 , Figure 2 A communication network system architecture diagram is provided for an embodiment of the present invention. The communication network system is an LTE system of universal mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203 and an operator's IP service 204, which are sequentially connected for communication.

[0053] Specifically, UE201 may be the aforementioned wristband 100, which will not be described in detail here.

[0054] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 , etc. Among them, eNodeB 2021 can be connected to other eNodeBs 2022 through a backhaul (eg, an X2 interface), and eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 can provide UE 201 with access to EPC 203 .

[0055] EPC203 may include MME (Mobility Management Entity) 2031, HSS (Home Subscriber Server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function) 2036, etc. Among them, MME2031 is a control node that processes signaling between UE201 and EPC203, and provides bearer and connection management. HSS2032 is used to provide some registers to manage functions such as home location register (not shown in the figure), and save some user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, which selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0056] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem) or other IP services.

[0057] Although the above introduction takes the LTE system as an example, those skilled in the art should know that the present invention is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA and future new network systems, etc., which are not limited here.

[0058] Based on the above-mentioned wristband hardware structure and communication network system, various embodiments of the present invention are proposed.

[0059] First embodiment:

[0060] See also Figure 3 , Figure 3A schematic diagram of the structure of a connecting link provided in an embodiment of the present invention. The connecting link 30 includes a link body 31 and a support member 32. The ends extending upward on both sides of the link body 31 are respectively provided with corresponding first connecting parts 311 and second connecting parts 312. The link body 31 and the first connecting parts 311 and the second connecting parts 312 form a U-shaped structure. In practical applications, the first connecting parts 311 and the second connecting parts 312 can be of the same structure or of different structures. In this embodiment, the first connecting parts 311 and the second connecting parts 312 are symmetrically arranged at the ends extending upward on both sides of the link body 31.

[0061] Combination Figure 4 A cross-sectional view of a connecting link provided in an embodiment of the present invention. The support member 32 is located in the middle of the U-shaped structure, and the two ends of the support member 32 are respectively connected to the first connecting portion 311 and the second connecting portion 312, and a receiving chamber 33 is formed between the link body 31 and the support member 32. Furthermore, the receiving chamber 33 is used to receive a power spring sheet. When the plurality of connecting links 30 form a wearable device strap, the receiving chambers 33 of all the connecting links 30 form a through chamber. By punching a through hole in the link body 31 and / or the support member 32 of the connecting link 30 of the last section of the wearable device strap, the power spring sheet can be riveted and fixed in the through chamber formed by the receiving chamber 33, thereby causing the strap to deform and bend. Of course, in addition to the power spring sheet, the receiving chamber can also accommodate FPC (Flexible Printed Circuit) flexible circuit boards and the like.

[0062] The connecting link 30 can be integrally formed by powder metallurgy or wire cutting plus partial CNC machining, or can be formed by forging or cutting. In addition, the connecting link 30 can be separately manufactured and then assembled together, and the assembly method can be gluing or welding.

[0063] Furthermore, the two ends of the first connecting part 311 are respectively provided with a first pin hole 3115, and the two ends of the second connecting part 312 are respectively provided with a second pin hole 3125 corresponding to the first pin hole 3115; in this embodiment, because the adjacent connecting links 30 are connected by round hole pins, it means that the neutral layer of the mechanism is at the layer where the center of the pin hole is located, and the length of the neutral layer cannot change before and after bending. When the watchband formed by several connecting links is bent, the part below the neutral layer will be compressed and shortened, and the part above the neutral layer will be stretched to a longer length. Exemplarily, the part above the neutral layer is set as a flexible screen, the neutral layer is set as a substrate, the neutral layer is set as a screen substrate, and the part below the neutral layer is set as a power spring. When the watchband formed by several connecting links is bent, the stretched length of the flexible screen becomes longer, the screen substrate does not change before and after bending, and the compressed length of the power spring becomes shorter.

[0064] The connecting link 30 is movably connected to the adjacent connecting link 30 through the first pin hole 3115, the second pin hole 3125 and the pin. In other words, a plurality of connecting links 30 are connected through the pin to achieve appropriate rotation at a certain angle.

[0065] Further, a first concave platform (not shown in the figure) is provided at one end of the outer side of the first connecting portion 311, and the first concave platform is formed by the first connecting portion 311 being concave toward the inner side thereof, and a second concave platform 3123 corresponding to the first concave platform is provided at one end of the outer side of the second connecting portion 312; when the connecting link 30 is assembled with the adjacent connecting link 30, the other end of the outer side of the first connecting portion is embedded in the first concave platform of the adjacent connecting link, and the other end of the outer side of the second connecting portion is embedded in the second concave platform of the adjacent connecting link. The design of the concave platform can prevent the distortion of the strap formed by several connecting links 30 from bringing a bad experience to the user. The shape of the end surface formed by the first concave platform and the middle part of the first connecting portion 311 is not limited here, nor is the shape of the end surface formed by the second concave platform 3123 and the middle part of the second connecting portion 312. It can be an arc end surface, a serrated end surface, or other irregular end surfaces, as long as the end surface is adapted to the end opposite to the first concave platform or the end opposite to the second concave platform and can make the adjacent connecting links move.

[0066] In this embodiment, the first concave platform and the middle part of the first connecting portion 311 form a first inner arc end face, and a first outer arc end face matched with the first inner arc end face is provided at the end of the first connecting portion 311 opposite to the first concave platform; the second concave platform 3123 and the middle part of the second connecting portion 312 form a second inner arc end face corresponding to the first concave platform, and a second outer arc end face matched with the second inner arc end face and corresponding to the first outer arc end face is provided at the end of the second connecting portion opposite to the second concave platform 3123.

[0067] Furthermore, a first limiting protrusion 3111 is disposed on the inner side of the first connection portion 311 , and a second limiting protrusion (not shown in the figure) corresponding to the first limiting protrusion 3111 is disposed on the inner side of the second connection portion 312 .

[0068] Furthermore, a first limiting opening 3112 adapted to the first limiting protrusion 3111 is provided on the edge of the first recess, and a second limiting opening 3122 corresponding to the first limiting opening 3112 and adapted to the second limiting protrusion is provided on the second recess 3123; wherein the size of the first limiting opening 3112 is larger than the size of the first limiting protrusion 3111, and the size of the second limiting opening 3122 is larger than the size of the second limiting protrusion.

[0069] When the connecting link 30 is assembled with an adjacent connecting link 30, the first limiting protrusion 3111 of the connecting link 30 is embedded in the first limiting opening 3112 of the adjacent connecting link 30, and the second limiting protrusion of the connecting link 30 is embedded in the second limiting opening 3122 of the adjacent connecting link 30, so as to achieve the limiting between the connecting link 30 and the adjacent connecting link 30. The limiting can achieve controllable rotation at a certain angle, so that the watchband composed of several connecting links can adapt to the hand shapes of different people.

[0070] Further, in the first state, the first state refers to when the strap composed of the plurality of connected links does not deform, the strap composed of the plurality of connected links is 180 degrees as a whole, such as Figure 5A schematic diagram of the first state of a watch strap composed of connecting links provided in an embodiment of the present invention. The upper end surface of the first limiting opening 3112 abuts against the upper end surface of the first limiting protrusion 3111 of the adjacent connecting link 30, and the upper end surface of the second limiting opening 3122 abuts against the upper end surface of the second limiting protrusion of the adjacent connecting link 30. Due to the cooperation and abutment between the limiting protrusion and the limiting opening, the adjacent links can only bend downward, thereby preventing the watch strap composed of several connecting links from folding back. And / or, in the second state, the first state refers to when the watch strap composed of several connecting links is deformed and bent, the watch strap composed of several connecting links is in an arc shape as a whole, such as Figure 6 The second state schematic diagram of a watch band composed of connecting links provided by an embodiment of the present invention. The lower end surface of the first limiting opening 3112 and the upper end surface of the first limiting opening 3112 abut against the lower end surface of the first limiting protrusion 3111 of the adjacent connecting link 30, and the lower end surface of the second limiting opening 3122 abuts against the lower end surface of the second limiting protrusion of the adjacent connecting link 30. Due to the cooperation and abutment between the limiting protrusion and the limiting opening, the adjacent links are bent to the maximum extent, thereby preventing the watch band composed of several connecting links from being excessively bent.

[0071] Furthermore, a first card slot 3114 with an upward opening is formed between the support member 32 and the first limiting protrusion 3111 and the end of the first connecting portion 311 corresponding to the first concave platform, and a second card slot (not shown in the figure) corresponding to the first card slot 3114 is formed between the support member 32 and the second limiting protrusion and the end of the second connecting portion 312 corresponding to the second concave platform 3123. The first card slot and the second card slot are used to fix other objects. For example, the silicone kit can be buckled on the watchband composed of the plurality of connecting links through the first card slot and the second card slot.

[0072] In this embodiment, the first card slot 3114 and the second card slot are respectively provided with a locking protrusion. The shape of the card slot protrusion is not limited here, and the card slot protrusion is used to buckle other objects on the watchband composed of the plurality of connecting links.

[0073] Further, an opening groove 321 is provided on the upper end surface of the support member 32. Exemplarily, the shape of the opening groove 321 can be rectangular, elliptical, triangular, or irregular, which is not limited here. Similarly, the depth of the opening groove 321 is not limited here. In this embodiment, the opening groove 321 is for accommodating an FPC flexible circuit board. Of course, the opening groove 321 can also accommodate other objects, such as a power spring, etc.

[0074] This embodiment proposes a connecting link, which includes a link body and a support member, and the ends extending upward on both sides of the link body are respectively provided with corresponding first connecting parts and second connecting parts, and the link body and the first connecting part and the second connecting part form a U-shaped structure; the support member is located in the middle of the U-shaped structure, and the two ends of the support member are respectively connected to the first connecting part and the second connecting part, and a accommodating cavity is formed between the link body and the support member. Through the connecting link provided by the present invention, the watch strap formed by the combination can be well adapted to the flexible screen wearable device, and its deformation degree is controllable, and it can prevent itself from bending and twisting, and can be well adapted to the hand shapes of various users, providing an excellent user experience. On the other hand, the connecting link can be integrally formed by powder metallurgy or wire cutting plus local CNC machining, so that the cost of the obtained wearable device is low.

[0075] Second embodiment:

[0076] The strap assembly provided by the embodiment of the present invention comprises a plurality of connecting links and pins, wherein the connecting links comprise a link body and a support member, and the ends extending upward on both sides of the link body are respectively provided with corresponding first connecting parts and second connecting parts, and the link body and the first connecting parts and the second connecting parts form a U-shaped structure; the support member is located in the middle of the U-shaped structure, and the two ends of the support member are respectively connected to the first connecting part and the second connecting part, and an accommodating cavity is formed between the link body and the support member. The connecting links are movably connected by the pins.

[0077] In this embodiment, the following description is made by taking a watch strap composed of two connecting links 30 as an example. Figure 7 As shown, the strap assembly 70 includes a first connecting link 30 and a second connecting link 30, and a pin for fixing the first connecting link 30 and the second connecting link 30, and the first connecting link 30 and the second connecting link 30 are movably connected through the pin.

[0078] The watch band of this embodiment is composed of a plurality of connecting links 30 in the first embodiment, which will not be described in detail here.

[0079] This embodiment proposes a watch strap, which includes a plurality of connecting links and pins, wherein the connecting links include a link body and a support member, and the ends extending upward on both sides of the link body are respectively provided with corresponding first connecting parts and second connecting parts, and the link body and the first connecting parts and the second connecting parts form a U-shaped structure; the support member is located in the middle of the U-shaped structure, and the two ends of the support member are respectively connected to the first connecting part and the second connecting part, and a receiving cavity is formed between the link body and the support member. The connecting links are movably connected through the pins. The watch strap formed by the connecting links provided by the present invention can be well adapted to flexible screen wearable devices, and its deformation degree is controllable, and it can prevent itself from bending and twisting, and can well adapt to the hand shapes of various users, providing an excellent user experience. On the other hand, the connecting links can be integrally formed by powder metallurgy or wire cutting plus local CNC machining, so that the cost of the obtained wearable device is low.

[0080] Third embodiment

[0081] Figure 8 This is a schematic diagram of the structure of a wearable device provided in an embodiment of the present invention. The wearable device 80 includes a device body 1 and a strap 2, wherein the strap 2 is composed of the connecting links 30 in the aforementioned embodiments, which will not be repeated here.

[0082] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0083] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0084] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods of various embodiments of the present invention.

[0085] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A connecting link, characterized in that: include: A chain link body and a support member, wherein the ends extending upward on both sides of the chain link body are respectively provided with corresponding first connecting parts and second connecting parts, and the chain link body and the first connecting parts and the second connecting parts form a U-shaped structure; The support member is located in the middle of the U-shaped structure, and both ends of the support member are connected to the first connecting portion and the second connecting portion respectively, and an accommodating cavity is formed between the chain link body and the support member; The accommodating cavity is used to accommodate the power spring sheet. When the plurality of connecting links form a wearable device strap, the accommodating cavities of all the connecting links form a through cavity. A through hole is punched in the link body and / or the supporting member of the connecting link of the last link of the wearable device strap, and the power spring sheet is riveted and fixed in the through cavity formed by the accommodating cavity. The accommodating cavity is also used to accommodate a flexible circuit board. A first concave platform is provided at one end of the outer side of the first connecting portion, and the first concave platform is formed by the first connecting portion being concave inwardly thereof, and a second concave platform corresponding to the first concave platform is provided at one end of the outer side of the second connecting portion; When the connecting link is assembled with an adjacent connecting link, the other end of the outer side of the first connecting portion is embedded in the first concave platform of the adjacent connecting link, and the other end of the outer side of the second connecting portion is embedded in the second concave platform of the adjacent connecting link; A first limiting protrusion is arranged on the inner side of the first connecting portion, and a second limiting protrusion corresponding to the first limiting protrusion is arranged on the inner side of the second connecting portion; The edge of the first concave platform is provided with a first limiting opening matched with the first limiting protrusion, and the second concave platform is provided with a second limiting opening corresponding to the first limiting opening and matched with the second limiting protrusion; wherein the size of the first limiting opening is larger than the size of the first limiting protrusion, and the size of the second limiting opening is larger than the size of the second limiting protrusion; When the connecting link is assembled with an adjacent connecting link, the first limiting protrusion of the connecting link is embedded in the first limiting opening of the adjacent connecting link, and the second limiting protrusion of the connecting link is embedded in the second limiting opening of the adjacent connecting link, so as to realize the limiting between the connecting link and the adjacent connecting link; In the first state, the upper end surface of the first limiting opening abuts against the upper end surface of the first limiting protrusion of the adjacent connecting link, and the upper end surface of the second limiting opening abuts against the upper end surface of the second limiting protrusion of the adjacent connecting link; and / or, In the second state, the lower end surface of the first limiting opening and the upper end surface of the first limiting opening abut against the lower end surface of the first limiting protrusion of the adjacent connecting link, and the lower end surface of the second limiting opening abuts against the lower end surface of the second limiting protrusion of the adjacent connecting link.

2. The connecting link according to claim 1, characterized in that: The first connecting portion is provided with first pin holes at both ends, and the second connecting portion is provided with second pin holes corresponding to the first pin holes at both ends; The connecting link is movably connected to an adjacent connecting link through the first pin hole, the second pin hole and a pin.

3. The connecting link according to claim 1, characterized in that: The first concave platform and the middle part of the first connecting portion form a first inner arc end surface, and a first outer arc end surface matching the first inner arc end surface is provided at the end of the first connecting portion opposite to the first concave platform; The second concave platform and the middle part of the second connecting portion form a second inner arc end surface corresponding to the first concave platform, and a second outer arc end surface matched with the second inner arc end surface and corresponding to the first outer arc end surface is provided at the end of the second connecting portion opposite to the second concave platform.

4. The connecting link according to claim 1, characterized in that: A first slot opening upward is formed between the support member and the first limiting protrusion and the end of the first connecting portion corresponding to the first recess, and a second slot corresponding to the first slot is formed between the support member and the second limiting protrusion and the end of the second connecting portion corresponding to the second recess.

5. The connecting link according to claim 4, characterized in that: The first card slot opening and the second card slot opening are respectively provided with card position protrusions.

6. The connecting link according to claim 2, characterized in that: An opening groove is arranged on the upper end surface of the support member.

7. A watch strap, characterized in that: include: A plurality of connecting links as claimed in any one of claims 1 to 6, wherein the connecting links are movably connected by pins.

8. A wearable device, characterized in that: include: A watch strap and a flexible display screen, wherein the watch strap comprises the watch strap as claimed in claim 7, and the flexible display screen is fixed on the watch strap.

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