A locking mechanism, a bracelet anti-dropping structure and a bracelet

Abstract

The utility model relates to a wearable equipment technical field, concretely relates to a locking mechanism, including the male buckle and the female buckle of insertable cooperation, the male buckle has the connecting portion and sets up the clamping portion at the connecting portion one end, the female buckle includes the lock shell, the lock shell is provided with the slot and the clamping groove that can be connected with the clamping portion and with the slot intercommunication, its characterized in that, still include locking block and power part, the power part is located in the lock shell, the locking block is connected with the power part, the power part is used for driving the locking block moves, the locking block is equipped with the locking inclined plane for the outward thrust of clamping portion and is applied, the utility model relates to a bracelet anti -drop structure and bracelet. The utility model discloses a locking mechanism can form the locking effect to the male buckle and the female buckle, effectively avoid the separation of the insert buckle due to the mistake touch, external force collision and so on, significantly improve the reliability and use safety of the connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of wearable device technology, specifically to a locking mechanism, a wristband anti-slip structure, and a wristband. Background Technology

[0002] Currently, most commonly used connection structures employ a snap-fit ​​design. This snap-fit ​​consists of a male and a female snap-fit ​​that can be plugged into each other. The male snap-fit ​​includes a connecting part and a locking part located at one end of the connecting part, while the female snap-fit ​​has a locking groove that fits and engages with the locking part. The connection between the components is achieved through the plugging and mating of the male and female snap-fits. However, in the engaged state, one side of the locking part protrudes outside the locking groove. If this protruding part is accidentally touched or subjected to external force, it is very easy for the locking part to detach from the locking groove, resulting in the separation of the male and female snap-fits and causing the connection structure to lose its connecting function, exhibiting a significant problem of insufficient connection stability.

[0003] As a common wearable device, a smartwatch typically consists of a watch face and a first and a second strap connected to either side of the watch face. The first and second straps are usually secured by a buckle connection. When the buckle's locking mechanism disengages from the slot due to accidental contact, the connection between the first and second straps fails, causing the smartwatch to accidentally fall off. This can not only cause physical damage to the smartwatch itself and loss of internal data, but also lead to its loss due to the concealed location of the fall, resulting in financial loss and inconvenience for the user. Therefore, there is an urgent need to optimize and improve the anti-fall-off performance of the smartwatch's connection structure. Summary of the Invention

[0004] One of the purposes of this application is to provide a locking mechanism that can lock the male and female buckles of a snap fastener, effectively preventing the snap fasteners from separating due to accidental contact or external impact, thereby achieving a stable connection between the male and female buckles and significantly improving the reliability and safety of the connection structure.

[0005] A locking mechanism includes a male buckle and a female buckle that can be plugged into each other. The male buckle has a connecting portion and a locking portion at one end of the connecting portion. The female buckle includes a lock housing, which has a slot and a groove communicating with the slot and capable of engaging with the locking portion. The mechanism is characterized by further including a locking block and a power unit. The power unit is disposed inside the lock housing. The locking block is connected to the power unit. The power unit is used to drive the locking block to move. The locking block has a locking ramp for applying an outward pushing force to the locking portion.

[0006] Preferably, the lock housing has a power compartment that communicates with the slot, and the power unit is located inside the power compartment.

[0007] Preferably, both sides of the connecting part are provided with engaging parts, the slots are provided in a one-to-one correspondence with the engaging parts, and the opposite sides of the locking block are respectively provided with locking inclined surfaces adapted to the engaging parts.

[0008] Preferably, the power unit includes a power base fixedly installed in the power compartment, a driving member is fixedly mounted on the power base, the actuating end of the driving member is fixedly connected to the upper end of the locking block, and the driving member can drive the locking block to move in a straight line.

[0009] Preferably, the upper end of the lock housing is covered with a cover plate, which covers the opening of the power compartment, and the cover plate is fixedly connected to the lock housing by screws.

[0010] The second objective of this application is to provide a wristband anti-slip structure, which employs the above-mentioned locking mechanism. In the locking mechanism, the end of the male buckle's connecting part away from the engaging part is connected to the first strap on one side of the wristband, and the locking shell of the female buckle is connected to the second strap on the other side of the wristband.

[0011] The third objective of this application is to provide a wristband, including a dial and a wristband anti-slip structure, wherein the first watch strap and the second watch strap are disposed on opposite sides of the dial.

[0012] The beneficial effects of this utility model are: This application provides a locking mechanism that adds a locking block and a power unit. The power unit drives the locking block to move, so that the locking inclined surface can push the engaging part outward to enhance its engagement stability with the slot. This effectively solves the problem of buckle separation caused by accidental contact or external force collision in traditional buckles, significantly improves the reliability of the connection between male and female buckles, and has a compact structure. The cooperation between the power unit and the locking block is simple and efficient, adaptable to the existing buckle basic structure, and easy to process and assemble.

[0013] This application also provides a wristband anti-detachment structure. The wristband anti-detachment structure adopts the above-mentioned locking mechanism, which connects the male buckle to the first watch band and the female buckle to the second watch band. With the anti-detachment reinforcement effect of the locking mechanism, the wristband can be prevented from accidentally detaching during daily wear due to accidental contact, etc., and the two ends of the watch band are stably locked. At the same time, no complicated operation is required, which combines automatic locking function and structural simplicity, improves the user's wearing safety and ease of use, and reduces the risk of wristband damage or loss.

[0014] This application also provides a wristband that, by setting the aforementioned anti-detachment structure, significantly improves the overall wearing stability while retaining the basic wearing functions of the watch face and strap, effectively preventing the wristband from falling off due to strap connection failure. Its structural layout is reasonable, and the anti-detachment structure is well-adapted to the wristband body, without affecting the wristband's portability and appearance design. It not only protects the user's property security but also improves the user experience and reliability during wristband use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the locking mechanism disclosed in Embodiment 1, in which the cover plate is not shown.

[0016] Figure 2 This is an exploded view of the locking mechanism disclosed in Example 1.

[0017] Figure 3 for Figure 1 A diagram showing the lock shell after it has been removed.

[0018] Figure 4 This is a schematic diagram of the lock case.

[0019] Figure 5 A diagram illustrating the use of a public buckle.

[0020] Figure 6 This is a schematic diagram of a locked block.

[0021] Figure 7 This is a schematic diagram of Example 3.

[0022] Figure 8 for Figure 7 A diagram showing another location. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1: like Figure 1-6 As shown, a locking mechanism includes a male buckle 1 and a female buckle that can be plugged into each other. The male buckle 1 has a connecting part 2 and a locking part 3 located at one end of the connecting part 2. The female buckle includes a lock housing 4. The lock housing 4 has a slot 5 and a slot 6 that communicates with the slot 5 and can engage with the locking part 3. The mechanism also includes a locking block 7 and a power unit. The power unit is located inside the lock housing 4. The locking block 7 is connected to the power unit. The power unit is used to drive the locking block 7 to move. The locking block 7 has a locking inclined surface 8 for applying an outward pushing force to the locking part 3.

[0025] It should be noted that the male buckle can be integrally molded or fixedly connected by a connecting part and a snap-fit ​​part. The male buckle can be inserted into the slot, and the snap-fit ​​part engages with the slot. The locking block has a locking bevel for applying an outward pushing force to the snap-fit ​​part. The outward pushing force is in the direction that makes the snap-fit ​​part fit more tightly into the slot. The locking bevel contacts the inner side of the snap-fit ​​part. As the locking block moves toward the male buckle, the locking bevel applies force to the inner side of the snap-fit ​​part, causing the snap-fit ​​part to be subjected to an outward pushing force.

[0026] In the above technical solution, the locking mechanism adds a locking block and a power unit to the basic structure of the male and female buckles. The power unit drives the locking block to move, so that the locking slope can push the engaging part outward to enhance its engagement stability with the slot. This fundamentally solves the problem that the engaging part in the traditional buckle structure is prone to disengagement due to accidental contact or external force. It significantly improves the reliability and anti-interference ability of the male and female buckle connection. At the same time, the overall structure retains the convenience of buckle insertion and engagement, and does not affect the basic operation mode while achieving a stable connection.

[0027] Optionally, in a specific implementation, the lock housing includes a power chamber 9 that communicates with the slot, and the power unit is located within the power chamber 9. By providing a power chamber communicating with the slot within the lock housing and housing the power unit therein, the installation position of the power unit is made more reasonable. This ensures the precision of the linkage between the power unit and the locking block and slot, effectively protects the power unit from external dust, moisture, and other factors, and makes the internal structure of the lock housing more compact, reducing the overall volume occupied by the locking mechanism and improving the integration and durability of the structure.

[0028] Optionally, in specific implementation, both sides of the connecting part 2 are provided with engaging parts 3, the slots 6 are provided one-to-one with the engaging parts 3, and the opposite sides of the locking block 7 are respectively provided with locking inclined surfaces 8 adapted to the engaging parts 3. By providing engaging parts on both sides of the connecting part and making the slots correspond one-to-one with the engaging parts, and by providing adapted locking inclined surfaces on the opposite sides of the locking block, double-sided engaging engagement of the male and female buckles is achieved. With the pushing action of the double-sided inclined surfaces of the locking block, the engagement force of the engaging parts and the slots is more balanced, further enhancing the stability and anti-detachment ability of the connection, and avoiding problems such as uneven force and loosening on one side that may occur with single-sided engaging.

[0029] In practice, the public buckle can be an E-type buckle.

[0030] Optionally, in a specific implementation, the power unit includes a power seat 10 fixedly installed within the power compartment 9. A driving component is fixedly mounted on the power seat 10, and the actuating end of the driving component is fixedly connected to the upper end of the locking block 7. The driving component can drive the locking block 7 to move in a straight line. By configuring the power unit into a structure including a power seat and a driving component, the driving component is stably installed within the power compartment through the power seat. The actuating end of the driving component is fixedly connected to the upper end of the locking block and drives the locking block to move in a straight line, making the movement path of the locking block more precise and controllable. This ensures that the locking ramp can accurately and stably contact the engaging part and apply thrust, improving the reliability and accuracy of the locking mechanism's operation. At the same time, the modular power unit structure also facilitates assembly and maintenance.

[0031] In practical implementation, the driving component is an electric telescopic rod, which consists of a motor, a reduction mechanism, a lead screw, and a transmission component, achieving linear push-pull. Specifically, in this application, the driving component includes a lead screw 11, with both ends rotatably connected to a power base. One end of the lead screw is connected to the output shaft of a motor 12, which is fixedly mounted on the power base. A transmission block 13 is threaded onto the lead screw, and the transmission block is fixedly connected to a locking block 7. A guide rod 14 is fixed on the power base, parallel to the axis of the lead screw. The transmission block has a guide hole for sliding engagement with the guide rod. Specifically, the motor is a miniature 5mm planetary geared stepper motor, and the stepper motor driver is model DRV8428RTER. The lead screw and the motor's output shaft can be directly fixedly connected or connected via a coupling. The thread engagement type between the transmission block and the lead screw is either trapezoidal thread or ball thread.

[0032] In practice, the driving component can also be an electric cylinder, a miniature cylinder, etc.

[0033] Optionally, in a specific implementation, a cover plate 15 is provided on the upper end of the lock housing, which covers the opening of the power compartment 9. The cover plate 15 is fixedly connected to the lock housing 4 by screws 16. By providing a cover plate on the upper end of the lock housing to cover the opening of the power compartment, and using screws to fix the cover plate to the lock housing, effective sealing protection can be provided for the power unit and other components inside the power compartment, preventing foreign objects from entering and affecting their operation. Furthermore, the detachable screw connection method facilitates future inspection or replacement of the internal components of the power compartment, thus balancing structural protection and ease of maintenance.

[0034] It should be noted that the male buckle is made of nylon, which has good elasticity and toughness, as well as self-lubricating properties, making it suitable for applications involving repeated unlocking and locking over a long period. The power unit features three protruding lugs, each with mounting holes. The lock housing has internally threaded holes directly opposite the mounting holes. The lugs and lock housing are secured together by screws that pass through the mounting holes and screw into the internally threaded holes. This ensures a stable installation of the power unit within the power compartment. A clearance area is provided within the slot corresponding to the locking block's position, ensuring that the locking block remains within this clearance area when the engaging part is engaged with the slot, preventing interference with the engaging part.

[0035] In summary, by adding a locking block and a power unit to the locking mechanism, the power unit drives the locking block to move, allowing the locking ramp to push the engaging part outward to enhance its engagement stability with the slot. This effectively solves the problem of buckle separation caused by accidental contact or external force collision in traditional buckles, significantly improving the reliability of the connection between the male and female buckles. Furthermore, the structure is compact, the cooperation between the power unit and the locking block is simple and efficient, it is compatible with existing buckle basic structures, and it is easy to process and assemble.

[0036] Example 2: A wristband anti-slip structure employs the aforementioned locking mechanism. In this mechanism, the end of the male buckle's connecting part away from the engaging part is connected to a first strap on one side of the wristband, while the female buckle's locking case is connected to a second strap on the other side of the wristband. The locking mechanism's enhanced anti-slip effect prevents the wristband from accidentally detaching during daily wear due to accidental contact, achieving stable locking at both ends of the strap. Simultaneously, it eliminates the need for complex operations, balancing automatic locking functionality with structural simplicity, thus improving user safety and ease of use, and reducing the risk of wristband damage or loss.

[0037] Example 3: like Figure 7-8 As shown, a wristband includes a dial 17 and the aforementioned anti-detachment structure. A first strap 18 and a second strap 19 are located on opposite sides of the dial. While retaining the basic wearing functions of the dial and straps, it significantly improves the overall wearing stability and effectively prevents the wristband from falling off due to strap connection failure. Its structural layout is reasonable, and the anti-detachment structure is well-suited to the wristband body, without affecting the wristband's portability and appearance design. It not only protects the user's property but also enhances the user experience and reliability during use.

[0038] It should be noted that when setting up the first and second watch straps on both sides of the bracelet, two watch straps can be used, which are connected to the two ends of the bracelet respectively. When connecting, they can be fixed or connected through a pivot. Alternatively, a single watch strap can be used, with the watch face fixedly mounted on the strap, and the watch straps at both ends of the watch face being the first and second watch straps, respectively.

[0039] When connecting the watch strap to the male or female buckle, it can be fixed or connected via a pivot.

[0040] The wristband's dial houses a control circuit board containing a controller and a stepper motor driver. The controller's motor control signal output is electrically connected to the stepper motor driver's control input. The stepper motor driver's drive signal output is electrically connected to the stepper motor's signal input via a cable, providing drive current for the stepper motor. The controller is not limited to existing STM32 microcontrollers, such as the STM32F103C8T6. The stepper motor driver model is not limited to the DRV8428RTER. The controller's motor control signal output includes three pins: the first pin is electrically connected to the stepper motor driver's enable pin, controlling the driver's operation via high or low level signals; the second pin is electrically connected to the stepper motor driver's direction control pin, determining the stepper motor's rotation direction via high or low level signals; and the third pin is electrically connected to the stepper motor driver's pulse input, inputting pulse signals to control the stepper motor's rotation step count.

[0041] Preferably, the wristband has buttons and / or a touchscreen on its dial, with the touchscreen main control board located inside the dial. The signal terminals of the buttons are electrically connected to the input terminals of the button driving circuit (such as a resistor pull-up circuit) on the control circuit board, and the signal output terminals of the button driving circuit are electrically connected to the button monitoring pins (such as interrupt pins) of the controller. The communication interface of the touchscreen main control board is electrically connected to the communication interface of the controller on the control circuit board via an FPC flexible cable; the communication interface is not limited to a serial interface.

[0042] In practical applications, when a user needs to initiate a lock or unlock command on the watch band, they send the command to the controller on the control circuit board via the buttons on the watch face or the main control board of the touchscreen. The controller receives and analyzes the signal. If it is a lock command, the controller controls the stepper motor driver to start the stepper motor to rotate forward. The stepper motor drives the lead screw to rotate, moving the locking block to the locking ramp and abutting against the engaging part, making the engaging part impossible to pull out under external force. If it is an unlock command, the controller controls the stepper motor driver to drive the stepper motor to rotate in the reverse direction, causing the locking block to move away from the engaging part and into the clearance area, allowing the buckle to be pulled out under external force. It should be noted that the methods involved in the above process are all existing technologies and are not within the protection scope of this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking mechanism comprising a male buckle (1) and a female buckle that can be plugged into each other, the male buckle (1) having a connecting portion (2) and a locking portion (3) disposed at one end of the connecting portion (2), the female buckle comprising a lock housing (4), the lock housing (4) having a slot (5) and a groove (6) communicating with the slot (5) and capable of engaging with the locking portion (3), characterized in that, It also includes a locking block (7) and a power unit, the power unit being located inside the lock housing (4), the locking block (7) being connected to the power unit, the power unit being used to drive the locking block (7) to move, and the locking block (7) being provided with a locking ramp (8) for applying an outward thrust to the engaging part.

2. The locking mechanism according to claim 1, characterized in that, The lock housing (4) is provided with a power compartment (9) that communicates with the slot (5), and the power unit is located in the power compartment (9).

3. The locking mechanism according to claim 1 or 2, characterized in that, Both sides of the connecting part (2) are provided with engaging parts (3), the slots (6) are provided in correspondence with the engaging parts (3), and the locking blocks (7) are provided with locking inclined surfaces (8) that are adapted to the engaging parts (3) on opposite sides.

4. The locking mechanism according to claim 2, characterized in that, The power unit includes a power seat (10) fixedly installed in the power compartment (9). A driving member is fixedly provided on the power seat (10). The actuating end of the driving member is fixedly connected to the upper end of the locking block (7). The driving member can drive the locking block (7) to move in a straight line.

5. The locking mechanism according to claim 2, characterized in that, The upper end of the lock housing (4) is covered with a cover plate (15), which covers the opening of the power compartment (9). The cover plate (15) and the lock housing (4) are fixedly connected by screws (16).

6. A wristband anti-slip structure, characterized in that, The locking mechanism includes the locking mechanism as described in any one of claims 1-5, wherein the end of the connecting part (2) of the male buckle (1) away from the engaging part (3) is connected to the first strap (18) on one side of the bracelet, and the locking case (4) of the female buckle is connected to the second strap (19) on the other side of the bracelet.

7. A bracelet, characterized in that, Includes a dial (17) and the wristband anti-slip structure as described in claim 6, wherein the first strap (18) and the second strap (19) are located on opposite sides of the dial.

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