Watch buckle, watchband assembly and wearable device

Abstract

The invention provides a watch buckle, a watchband assembly and wearable equipment. Relates to the technical field of electronic equipment. The watch buckle comprises a shell and a movable plate, and the movable plate can move in the extending direction of the watchband so as to drive the watchband to move. Besides, the watch buckle further comprises a structure for adjusting the tightness of the watchband, the structure can comprise an elastic piece, a sliding block and a track column, an annular track groove is formed in the sliding block, the track column is arranged in the track groove in a sliding mode, and the track column can slide between an extension position and a contraction position along the annular track of the track groove. The slide block is driven to move along the direction intersected with the extension direction of the watchband so as to adjust the tightness of the watchband. And the watchband is extended or shortened by utilizing the unidirectional sliding of the track column in the track groove.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and in particular, to a wearable device, a strap assembly that can be applied to the wearable device, and a buckle that can be applied to the strap assembly. Background Art

[0002] Wearable devices generally refer to miniature electronic devices that can be worn on the body during activities, and basically include smart watches and smart bracelets. Smart watches and smart bracelets can be used independently or as portable accessories of a mobile terminal.

[0003] Currently, in most wearable devices, the length of the strap can be adjusted. However, it is still impossible to accurately fit the wrist and achieve the best wearing experience. Summary of the Invention

[0004] This application provides a wearable device, a strap assembly that can be applied to the wearable device, and a buckle that can be applied to the strap assembly. The purpose is to provide a structure that can finely adjust the length of the strap to accurately fit the wrist.

[0005] To achieve the above object, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, this application provides a buckle that can be applied to a wearable device. For example, the buckle is used to connect the strap of the wearable device.

[0007] The buckle provided by this application includes: a housing and a movable plate; the movable plate is arranged on the housing, the movable plate is used to connect with the strap, and the movable plate can move along the extension direction of the strap to drive the strap to move together.

[0008] In order to finely adjust the length of the strap; the buckle may further include an elastic member, a slider, and a track post. One of the slider and the track post is arranged on the housing, and the other is arranged on the movable plate. For example, the slider is slidably arranged on the movable plate, and the track post is fixed on the housing; the slider has an annular track groove, and the track post is slidably arranged in the track groove, that is, it can move along the annular track of the track groove; the elastic member connects the housing and the movable plate.

[0009] The track post can slide between a first fixed position and a second fixed position along the annular track of the track groove, driving the slider to move along a direction intersecting the extending direction of the watch band to adjust the tightness of the watch band. The elastic member is used to apply elastic forces in directions away from each other to the movable plate and the housing, so that the track post is held at the first fixed position and the second fixed position. For example, when the track post slides along the track groove, the track post can abut against the wall surface of the track groove, causing the slider to move along a direction intersecting the extending direction of the watch band, prompting the track post to continue sliding along the annular track of the track groove, so that it can reciprocally slide between the first fixed position and the second fixed position to realize the contraction and elongation of the watch band.

[0010] For example, when the movable plate is pushed towards the inside of the housing, the track post slides along the track groove and can slide from the first fixed position (such as the elongation position) to the second fixed position (such as the contraction position). When the external force is removed, by using the elastic force of the elastic member applied to the movable plate in the direction of the watch band, the movable plate can be held at the contraction position to realize the contraction of the watch band; if the movable plate is pushed towards the inside of the housing again, the track post continues to slide along the track groove and can slide from the second fixed position (such as the contraction position) to the first fixed position (such as the elongation position). When the external force is removed, by using the elastic force of the elastic member applied to the movable plate in the direction of the watch band, the movable plate can be held at the elongation position to realize the elongation of the watch band.

[0011] In a feasible implementation, when the watch band is tightened, the movable plate and the housing approach each other, and the track post slides along the track groove from the first fixed position to the first temporary position. Under the elastic force of the elastic member, the track post slides along the track groove from the first temporary position to the second fixed position; in the extending direction of the watch band, the second fixed position is located between the first fixed position and the first temporary position; in the width direction of the watch band, the first temporary position is located between the first fixed position and the second fixed position.

[0012] In the example of the present application, the track post slides from the first fixed position to the first temporary position, which can guide the track post to slide to the second fixed position under the elastic force of the elastic member.

[0013] In a feasible implementation, the track of the track post sliding from the first fixed position to the first temporary position includes: a track along the first direction and a track along the width direction of the watch band, and the first direction is the direction in which the movable plate and the housing approach each other.

[0014] In some examples, the track groove from the first fixed position to the first temporary position can be inclined, including a track component along the length direction of the watch band and a track component along the width direction of the watch band.

[0015] In some other examples, the track groove from the first fixed position to the first temporary position includes a track groove parallel to the length direction of the watch band and a track groove intersecting with this track groove.

[0016] In one possible implementation, the trajectory of the trajectory post sliding from the first temporary position to the second fixed position includes: a trajectory along the second direction and a trajectory along the width direction of the watch band, where the second direction is the direction in which the movable plate and the housing move away from each other.

[0017] In one possible implementation, when the watch band is relaxed, the movable plate and the housing move closer to each other, and the trajectory post slides from the second fixed position to the second temporary position along the trajectory groove. Under the elastic force of the elastic member, the movable plate and the housing move away from each other, and the trajectory post slides from the second temporary position to the first fixed position along the trajectory groove; in the extending direction of the watch band, the second fixed position is located between the first fixed position and the second temporary position; in the width direction of the watch band, the second fixed position is located between the first fixed position and the second temporary position.

[0018] In the example of the present application, the trajectory post sliding from the second fixed position to the second temporary position can guide the trajectory post to slide to the first fixed position under the elastic force of the elastic member.

[0019] In one possible implementation, the trajectory of the trajectory post sliding from the second fixed position to the second temporary position includes: a trajectory along the first direction and a trajectory along the width direction of the watch band, where the first direction is the direction in which the movable plate and the housing move closer to each other.

[0020] In some examples, the trajectory groove from the second fixed position to the second temporary position can be inclined, including a trajectory component along the length direction of the watch band and a trajectory component along the width direction of the watch band.

[0021] In some other examples, the trajectory groove from the second fixed position to the second temporary position includes a trajectory groove parallel to the length direction of the watch band and a trajectory groove intersecting with the trajectory groove.

[0022] In one possible implementation, the trajectory of the trajectory post sliding from the second temporary position to the first fixed position includes: a trajectory along the second direction and a trajectory along the width direction of the watch band, where the second direction is the direction in which the movable plate and the housing move away from each other.

[0023] In one possible implementation, in the width direction of the watch band, the second fixed position is located between the first temporary position and the second temporary position.

[0024] In one possible implementation, the trajectory of the trajectory post sliding from the first fixed position to the first temporary position includes a first trajectory segment along the width direction of the watch band, and the trajectory of the trajectory post sliding from the second temporary position to the first fixed position includes a second trajectory segment along the width direction of the watch band, and the first trajectory segment and the second trajectory segment point in opposite directions.

[0025] In this way, the track post can reciprocally slide between the first fixed position and the second fixed position.

[0026] In an implementable manner, when the watch band is tightened and the track post slides along the track groove from the first fixed position towards the second fixed position, the slider slides along a third direction parallel to the width direction of the watch band; when the watch band is loosened and the track post slides along the track groove from the second fixed position towards the first fixed position, the slider slides along a fourth direction opposite to the third direction.

[0027] When the track post slides along the track groove, it can drive the slider to slide, enabling the track post to slide between the extended position and the contracted position, thereby realizing the tightening and loosening of the watch band. Moreover, the sliding direction of the slider when the watch band is tightened is opposite to the sliding direction of the slider when the watch band is loosened.

[0028] In an implementable manner, when the movable plate moves along the extending direction of the watch band, the track post can slide unidirectionally along the annular track groove, enabling the track post to slide between the first fixed position and the second fixed position.

[0029] In an implementable manner, along the annular track of the track groove, the track groove includes a connected first track groove and a second track groove; when the track post slides along the first track groove, it can slide from the first fixed position to the second fixed position; when the track post slides along the second track groove, it can slide from the second fixed position to the first fixed position.

[0030] When the movable plate is pressed, the track post can slide unidirectionally along the annular track of the track groove. For example, when the movable plate is pushed, the track post can slide from the extended position to the contracted position along the first track segment, realizing the shortening of the watch band; when the movable plate is pushed again, the track post continues to slide along the second track segment connected to the first track segment, sliding from the contracted position to the extended position, realizing the elongation of the watch band; when the movable plate is pushed again, the track post continues to slide along the first track segment connected to the second track segment, sliding from the extended position to the contracted position, realizing the shortening of the watch band.

[0031] In an implementable manner, the wall surfaces of the slider for enclosing the track groove include: a first abutting surface and a second abutting surface, both the first abutting surface and the second abutting surface face towards the watch band direction, and the second abutting surface is closer to the watch band than the first abutting surface; at the first fixed position, the track post abuts against the first abutting surface; at the second fixed position, the track post abuts against the second abutting surface.

[0032] For example, when in the contracted position, the track post abuts against the first abutting surface, which can improve the stability and reliability of the device in this contracted state; similarly, when in the extended position, the track post abuts against the second abutting surface, which can improve the stability and reliability of the device in this extended state.

[0033] In a feasible implementation, the track post includes a first arc surface, and either the first abutting surface or the second abutting surface includes a second arc surface; when the track post is held at the first fixed position or the second fixed position, under the elastic force of the elastic member, the first arc surface fits with the second arc surface.

[0034] By using the fitting of the arc surface with the arc surface, the stability of the telescopic movement of the watch band can be improved.

[0035] In a feasible implementation, the slider includes a first protrusion and a second protrusion. The second protrusion surrounds the first protrusion, and an annular track groove is formed between the first protrusion and the second protrusion; the first abutting surface is located on the wall surface of the track groove surrounded by the second protrusion; the second abutting surface is located on the wall surface of the track groove surrounded by the first protrusion.

[0036] This slider structure is simple and easy to implement.

[0037] In a feasible implementation, the slider is slidably arranged on the movable plate, and the track post is arranged on the housing; a sliding groove for the slider to slide is formed on the movable plate, and the extending direction of the sliding groove is parallel to the width direction of the watch band.

[0038] In some other implementation structures, the slider is slidably arranged on the housing, and the track post is fixed on the movable plate.

[0039] In a feasible implementation, the slider includes a first side surface and a second side surface which face each other, and the arrangement directions of the first side surface and the second side surface are parallel to the extending direction of the watch band; both the first side surface and the second side surface are slidably connected to the movable plate.

[0040] In a feasible implementation, the elastic member includes a spring. One end of the spring is connected to the housing, and the other end is connected to the movable plate; at the first fixed position and the second fixed position, the spring is in a stretched state.

[0041] In a feasible implementation, an installation groove is formed on the movable plate, and the spring is arranged in the installation groove.

[0042] In this example, the spring is arranged in the installation groove, which can not only reduce the thickness dimension of the buckle, but also the installation groove has a limiting effect, enabling the spring to expand and contract along its length direction.

[0043] In a second aspect, the present application provides a watch band assembly. The watch band assembly may include a first watch band and the buckle in any of the above implementation manners, wherein the movable plate of the buckle is connected to the first watch band.

[0044] For the strap assembly provided in this application, when the movable plate is pushed, the track post can slide between a first fixed position (such as an extended position) and a second fixed position (a contracted position) along the track groove. By applying an elastic force towards the strap direction to the movable plate through an elastic member, the movable plate can be kept at the extended position or the contracted position, thereby realizing the extension and shortening of the strap.

[0045] In an implementable manner, the movable plate is rotatably connected to the first strap; the strap assembly further includes a second strap, a first plate, and a second plate; one end of the first plate is fixedly connected to the housing, the other end is rotatably connected to the second plate, the second plate is snap-connected to the housing, and the second plate is connected to the second strap.

[0046] In a third aspect, this application provides a wearable device, which can be a watch, a bracelet, etc.

[0047] The wearable device may include: a watch dial and the strap assembly in any of the above implementation manners, and the first strap of the strap assembly is connected to the watch dial.

[0048] Since the wearable device provided in this application includes the strap assembly in any of the above manners, in the buckle of this strap assembly, the movable plate is slidably connected to the housing, and during the sliding process of the movable plate, the track post in the buckle can slide between the extended position and the contracted position along the track groove, thereby finely adjusting the length of the strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a partial structural schematic diagram of a wearable device provided by an embodiment of this application;

[0050] Figure 2 It is a partial structural schematic diagram of a wearable device provided by an embodiment of this application;

[0051] Figure 3 It is a structural schematic diagram of a buckle provided by an embodiment of this application;

[0052] Figure 4 It is a structural schematic diagram when the structural member in a buckle provided by an embodiment of this application adjusts the tightness of the strap;

[0053] Figure 5A It is a trajectory schematic diagram of a track post in a buckle provided by an embodiment of this application;

[0054] Figure 5B It is another trajectory schematic diagram of a track post in a buckle provided by an embodiment of this application;

[0055] Figure 6 It is yet another trajectory schematic diagram of a track post in a buckle provided by an embodiment of this application;

[0056] Figure 7Another trajectory schematic diagram of the trajectory post in the buckle provided by the embodiment of the present application;

[0057] Figure 8 A structural schematic diagram of a buckle provided by the embodiment of the present application;

[0058] Figure 9 A structural schematic diagram of a slider in a buckle provided by the embodiment of the present application;

[0059] Figure 10 An exploded schematic diagram of a buckle provided by the embodiment of the present application;

[0060] Figure 11 An exploded schematic diagram of a buckle provided by the embodiment of the present application.

[0061] Reference numerals:

[0062] 101 - First watch band; 102 - Second watch band;

[0063] 20 - Buckle; 30 - Hole;

[0064] 1 - Housing; 2 - Movable plate; 3 - Elastic member; 4 - Slider; 5 - Trajectory groove; 6 - Trajectory post; 7 - Slide groove;

[0065] 81 - First abutting surface; 82 - Second abutting surface; 9 - Placement groove; 11 - Bottom plate; 12 - Cover; 31 - Threaded connecting member; 41 - First convex block; 42 - Second convex block; 51 - First plate; 52 - Second plate. Detailed implementation manners

[0066] The embodiment of the present application provides a wearable device. For example, the wearable device can be a smart bracelet or a smart watch. The wearable device can be worn on the wrist to implement functions such as time display, timekeeping, time reporting, message notification, motion detection, heart rate monitoring, and blood oxygen level detection.

[0067] The wearable device mainly includes a watch band and a watch dial. The watch band is used to surround the user's wrist to realize the wearing of the wearable device. The watch dial can include a display screen for display.

[0068] Such as Figure 1 , Figure 1 , an exemplary structural diagram of a watch band is shown. The exemplary watch band includes a first watch band 101 and a second watch band 102. The watch dial is connected between the first watch band 101 and the second watch band 102. For example, the watch dial can be connected between the A end of the first watch band 101 and the B end of the second watch band 102. The first watch band 101 and the second watch band 102 can be connected by a buckle 20 so that the first watch band 101, the watch dial, and the second watch band 102 form a closed loop to surround the wrist.

[0069] In some alternative embodiments, the material of the watch band can be selected from metals, ceramics, rubbers, etc.

[0070] To fit the wrist, as Figure 1 , a plurality of holes 30 can be formed in the first watch band 101 and the second watch band 102. The wearer can adjust the length of the watch band according to the thickness of the wrist through the plurality of holes.

[0071] In Figure 1 , the adjustment amount of the watch band length is at least the distance between two adjacent holes 30. In this way, there may be a phenomenon of being too loose or too tight when worn, and the wrist cannot be accurately fitted, reducing the user experience and even reducing the performance of the wearable device. For example, when the wearable device has functions such as heart rate monitoring and blood oxygen level detection, due to being too loose, the watch face cannot be close to the skin, reducing the measurement accuracy.

[0072] In order to make the wearable device accurately fit the wrist, improve the user experience, and improve the performance of the device, the wearable device exemplified in this application includes a fine-tuning structure that can finely adjust the length of the watch band. For example, as Figure 1 , the adjustment amount of the fine-tuning structure can be one-half, one-third, one-fourth, or one-fifth of the distance between two adjacent holes, or even smaller; alternatively, the adjustment amount of the fine-tuning structure can be greater than one hole pitch and less than two hole pitches. For example, the adjustment amount can be equal to 3 / 2 hole pitches. The structures that the fine-tuning structure can achieve are as follows.

[0073] As Figure 2 and Figure 3 , Figure 2 are partial structural diagrams of the wearable device given in the embodiments of this application, Figure 3 is the structural schematic diagram after removing Figure 2 part of the structure.

[0074] In the example of this application, as Figure 2 , the buckle 20 disposed between the first watch band 101 and the second watch band 102 includes: a housing 1 and a movable plate 2, and the movable plate 2 is disposed on the housing 1; the movable plate 2 is connected to the watch band 10. For example, the movable plate 2 can be rotatably connected to the first watch band 101 as shown in Figure 1 .

[0075] As Figure 2 , the movable plate 2 can move along the extension direction of the watch band 10. For example, a chamber can be provided in the housing 1, and the movable plate 2 can move in the chamber along the P direction as shown in Figure 2 .

[0076] Since the movable plate 2 is connected to the watch band 10, in this way, the watch band 10 can be driven by the movable plate 2 to move together along as Figure 2It moves in the P direction as shown. For example, when the movable plate 2 moves towards the inside of the housing 1, that is, when the movable plate 2 and the housing 1 approach each other, the length of the watch band can be shortened. When the movable plate 2 moves towards the outside of the housing 1, that is, when the movable plate 2 and the housing 1 move away from each other, the length of the watch band can be lengthened, realizing fine adjustment of the length of the watch band.

[0077] As Figure 3 , the buckle further includes a slider 4, and the slider 4 can move in a direction intersecting the extending direction of the watch band. For example, in Figure 3 the example, the slider 4 can slide in the S direction perpendicular to the P direction of the extending direction of the watch band, that is, the slider 4 can slide along the width direction of the watch band. In some examples, a chute 7 can be provided, and the extending direction of the chute 7 is parallel to the width direction of the watch band, and the slider 4 is slidably arranged in the chute 7.

[0078] The slider 4 has an annular track groove 5, as Figure 3 shown by the dotted line with an arrow indicating the track of the annular track groove.

[0079] As Figure 3 , the buckle further includes a track post 6, and the track post 6 is slidably arranged in the track groove 5.

[0080] In the example of the present application, one of the slider 4 and the track post 6 can be arranged on the housing 1, and the other is arranged on the movable plate 2. For example, in Figure 3 the example, the slider 4 is slidably arranged on the movable plate 2, and the track post 6 is fixedly arranged on the housing 1. In some other examples, the slider 4 can be slidably arranged on the housing 1, and the track post 6 is fixedly arranged on the movable plate 2.

[0081] As Figure 3 , the buckle can further include an elastic member 3, and the elastic member 3 connects the housing 1 and the movable plate 2. For example, the elastic member 3 can be a spring, one end of the spring is fixedly connected to the movable plate 2, and the other end is fixedly connected to the housing 1.

[0082] The elastic member 3 is used to apply an elastic force to the movable plate 2 towards the direction of the watch band 10. As Figure 3 , the elastic member 3 can apply an elastic force to the movable plate 2 along the P1 direction, so that the movable plate 2 always maintains a state of moving towards the outside of the housing 1.

[0083] The elastic member 3 can also apply an elastic force to the housing 1 in the direction away from the watch band 10. As Figure 3 shown by the elastic force along the P2 direction, that is, the elastic member 3 can make the movable plate 2 and the housing 1 tend to move away from each other.

[0084] As Figure 3In the example, when the movable plate 2 moves along the extending direction of the watch band 10, the track post 6 can slide between the retracted position and the extended position around the circular track of the track groove 5, and the track post 6 sliding along the track groove 5 can drive the slider 4 to move along a direction intersecting with the extending direction of the watch band 10.

[0085] In the example of the present application, the elastic member 3 is used to apply elastic forces in directions away from each other to the movable plate 2 and the housing 1, so that the track post 6 maintains the extended position and the retracted position.

[0086] Next, in conjunction with Figure 4 , a detailed introduction will be given to Figure 3 how the example structure realizes the contraction and extension of the watch band. Figure 4 Briefly shows the positional relationship of the slider 4, the track post 6, the track groove 5, and the sliding groove 7 in different states. In Figure 4 the example, the slider 4 is slidably arranged on the movable plate 2, and the track post 6 is fixedly arranged on the housing 1. In Figure 4 , the dotted circle indicates the movement track of the track post.

[0087] As Figure 4 shown in (a) to (e) of

[0088] As Figure 4 shown in (a) of Figure 4 , the track post 6 is in the first fixed position (such as the extended position) of the track groove 5. Since the elastic member 3 can apply an elastic force to the movable plate 2 in the direction of the watch band 10 and can apply an elastic force to the track post 6 in a direction away from the watch band 10, thus, in

[0089] shown in (a) of Figure 4 , the track post 6 in the extended position has a pulling force to the right, so that the track post 6 and the slider 4 can be mutually pressed together, and then the track post 6 is maintained at the extended position. Figure 4 From Figure 4 shown in (a) to (b) of

[0090] when the movable plate 2 is pushed into the housing 1 and the housing 1 and the movable plate 2 are made to approach each other by using an external thrust, the track post 6 can slide along the first direction, that is, along the L1 direction shown in (b) of Figure 4 from the extended position to the A position. After the track post 6 slides to the A position, it will continue to slide along the track groove 5 in a direction intersecting with the first direction to the first temporary position shown in (c) ofFigure 4 The B position shown in (d) slides to Figure 4 the second fixed position (such as the contracted position) shown in (e). By using the pulling force of the elastic member 3 on the right side of the track column 6, the track column 6 can be maintained at the contracted position, and in this way, the contraction of the watch band can be achieved.

[0091] In the example of this application, the first direction can be understood as the direction in which the movable plate 2 and the housing 1 approach each other, and the second direction is the direction in which the movable plate 2 and the housing 1 move away from each other.

[0092] See Figure 4 From (b) to (c) of, the track of the track column 6 sliding from the A position to the first temporary position can play a guiding role, so that after the track column 6 slides from the A position to the first temporary position, it can slide to the contracted position under the action of the elastic member.

[0093] The contraction process of the watch band can be understood as follows: when the track column moves from the extended position towards the contracted position, the movable plate 2 and the housing 1 approach each other, and the track column 6 slides in the track groove 5 along the first direction and the direction intersecting the first direction to the first temporary position. Under the elastic force of the elastic member 3, the track column 6 slides from the first temporary position along the second direction and the direction intersecting the second direction to the contracted position.

[0094] See Figure 4 From (a) to (e) of, the extended position and the A position are on the same straight line, and this straight line is parallel to the extension direction of the watch band. The first temporary position, the B position and the contracted position are on the same side of the extended position and the A position.

[0095] Along the length direction of the watch band, the second fixed position is located between the first temporary position and the first fixed position.

[0096] Along the width direction of the watch band (such as Figure 4 the S direction of), the first temporary position is located between the first fixed position and the second fixed position, that is, there is a spacing between the first temporary position and the second fixed position along the width direction of the watch band (such as Figure 4 the S direction of). Or, it can be understood that along the width direction of the watch band, the first temporary position and the second fixed position are staggeredly arranged. In this way, when the track column 6 is at the first temporary position, after the external force is withdrawn, under the elastic force of the elastic member 3, the track column 6 can continue to slide to the right and then upwards along the track groove until the contracted position. If the first temporary position and the second fixed position are on a straight line, the track column 6 will slide back and forth between the first temporary position and the second fixed position on the straight line, causing the function of adjusting the length of the watch band of this device to fail.

[0097] Such as Figure 4 (e) to (i) of show the schematic diagram of the elongation (which can also be called relaxation) of the watch band.

[0098] As shown in Figure 4 (e) thereof, the track post 6 is in the second fixed position (such as the contracted position) of the track groove 5.

[0099] From Figure 4 (e) to (f) thereof, the movable plate 2 is pushed into the housing 1, and by using an external thrust, the housing 1 and the movable plate 2 are close to each other. The track post 6 can slide from the contracted position to the C position along the first direction, that is, along the L1 direction shown in Figure 4 (f) thereof. After the track post 6 slides to the C position, it will continue to slide along the track groove 5 in a direction intersecting the first direction to the second temporary position shown in Figure 4 (g) thereof.

[0100] When the external force is withdrawn, under the elastic force of the elastic member 3, the movable plate 2 and the housing 1 move away from each other. The track post 6 can continue to slide along the second direction opposite to the first direction to the D position shown in Figure 4 (h) thereof. Under the elastic force of the elastic member 3 and the action of the track post 6 on the slider 4, the slider 4 can slide upward. The track post 6 slides from the D position shown in Figure 4 (h) thereof to the first fixed position (such as the extended position) shown in Figure 4 (i) thereof. By using the rightward pulling force of the elastic member 3 on the track post 6, the track post 6 can be kept in the extended position. In this way, the elongation of the watch band can be realized.

[0101] See Figure 4 (f) to (g) thereof. The track of the track post 6 sliding from the C position to the second temporary position can play a guiding role, so that after the track post 6 slides from the C position to the second temporary position, it can slide to the extended position under the action of the elastic member.

[0102] The elongation process of the watch band can be understood as follows: when the track post moves from the contracted position to the extended position, first the movable plate 2 and the housing 1 are close to each other, and the track post 6 slides in the track groove 5 along the first direction and a direction intersecting the first direction to the second temporary position. Under the elastic force of the elastic member 3, the movable plate 2 and the housing 1 move away from each other again, and the track post 6 slides from the second temporary position along the second direction and a direction intersecting the second direction to the extended position.

[0103] As shown in Figure 4 (e) to (i) thereof, the second temporary position is farther from the first fixed position than the second fixed position.

[0104] In the extending direction of the watch band, the second fixed position is located between the first fixed position and the second temporary position.

[0105] In the width direction of the watch band, the second fixed position is located between the first fixed position and the second temporary position. There is a spacing between the second temporary position and the retracted position in the width direction of the watch band (such as the S direction in Figure 4 ). That is, along the width direction of the watch band, the second temporary position and the second fixed position are staggered. In this way, when the track post 6 is at the second temporary position and the external force is removed, under the elastic force of the elastic member 3, the track post 6 can continue to slide rightward and then downward along the track groove until the extended position.

[0106] In the example of the present application, the first temporary position and the second temporary position are on the same side of the second fixed position. By setting the first temporary position and the second temporary position with a guiding effect, it can be ensured that after the external force is removed, under the elastic force of the elastic member, the track post smoothly slides to the corresponding retracted position and extended position along the track groove.

[0107] In the example of the present application, in the width direction of the watch band, the second fixed position is located between the first temporary position and the second temporary position.

[0108] Such as Figure 4 shown in (a) to (e) of Figure 4 , when the track post moves from the extended position to the retracted position, the slider 4 slides in a third direction parallel to the width direction of the watch band (such as the S direction in Figure 4 ). For example, in (d) to (e) of

[0109] , the slider 4 moves downward along the chute 7. Figure 4 Such as shown in (e) to (i) of Figure 4 , when the track post moves from the retracted position to the extended position, the slider 4 slides in a fourth direction parallel to the width direction of the watch band (such as the S direction in Figure 4 ). The fourth direction is opposite to the third direction. For example, in (h) to (i) of

[0110] See Figure 4 in (h) to (i), when the track post 6 slides from the D position to the extended position, it slides in the direction T1 intersecting with the second direction (L2 direction). See Figure 4 in (b) to (c), when the track post 6 slides from the A position to the first position, it slides in the direction T2 intersecting with the first direction (L1 direction). The direction T1 is opposite to the direction T2, and the track post 6 can slide unidirectionally along the annular track groove 5 to switch between the retracted position and the extended position.

[0111] It can be understood that in the example of this application, when the movable plate 2 moves along the extending direction of the watch band 10, the track column 6 can slide unidirectionally in a circular track of the track groove 5 in a cyclic manner, and can be repeatedly switched between the extended position and the contracted position. That is, when the track column 6 slides in the track groove 5 in one direction (such as the clockwise direction or the counterclockwise direction), the switching of the elongation and shortening of the watch band length can be realized.

[0112] When the user adjusts the length of the watch band by using Figure 3 and Figure 4 the shown structure, pushing down the movable plate 2 makes the movable plate 2 and the housing 1 approach each other, and the length of the watch band can be contracted; pushing down the movable plate 2 again, the movable plate 2 will rebound to elongate the length of the watch band.

[0113] The watch band fine-tuning structure of the example of this application is not only simple in structure but also simple in operation, and the user experience will be significantly improved.

[0114] As Figure 5A and Figure 5B shown, Figure 5A simply shows the movement track of the above-mentioned Figure 4 track column, Figure 5B and

[0115] is another movement track of the track column in the example of this application. Figure 5A In Figure 5B shown, the track path of the track column 6 sliding from the first fixed position to the first temporary position includes a direction along the first direction (L1) and a direction intersecting with L1. In some other examples, as

[0116] shown in Figure 4 from (a) to (c), Figure 5A and Figure 5B the track of the track column sliding from the first fixed position to the first temporary position includes: a track along the first direction and a track along the width direction of the watch band, and the first direction is the direction in which the movable plate and the housing approach each other. It can also be understood that: the track of the track column sliding from the first fixed position to the first temporary position can be decomposed into a track component sliding along the first direction and a track component along the width direction of the watch band.

[0117] As Figure 4 from (c) to (e), Figure 5A and Figure 5B, the trajectory of the trajectory column sliding from the first temporary position to the second fixed position includes: a trajectory along the second direction and a trajectory along the width direction of the watch band, where the second direction is the direction in which the movable plate and the housing move away from each other. It can also be understood that: the trajectory of the trajectory column sliding from the first fixed position to the first temporary position can be decomposed into a trajectory component sliding along the second direction and a trajectory component along the width direction of the watch band.

[0118] As Figure 4 in (e) to (g) of Figure 5A and Figure 5B , the trajectory of the trajectory column sliding from the second fixed position to the second temporary position includes: a trajectory along the first direction and a trajectory along the width direction of the watch band. That is, the trajectory of the trajectory column sliding from the second fixed position to the second temporary position can be decomposed into a trajectory component sliding along the first direction and a trajectory component along the width direction of the watch band.

[0119] As Figure 4 in (g) to (i) of Figure 5A and Figure 5B , the trajectory of the trajectory column sliding from the second temporary position to the first fixed position includes: a trajectory along the second direction and a trajectory along the width direction of the watch band. It can also be understood that: the trajectory of the trajectory column sliding from the first fixed position to the first temporary position can be decomposed into a trajectory component sliding along the second direction and a trajectory component along the width direction of the watch band.

[0120] See Figure 4 in (a) to (c) of , the trajectory of the trajectory column 6 sliding from the first fixed position to the first temporary position includes a first trajectory segment along the width direction of the watch band. See Figure 4 in (g) to (i) of , the trajectory of the trajectory column sliding from the second temporary position to the first fixed position includes a second trajectory segment along the width direction of the watch band, and the first trajectory segment and the second trajectory segment point in opposite directions. For example, in Figure 4 in (a) to (c) of , the trajectory column 6 slides upward along the width direction of the watch band. In Figure 4 in (g) to (i) of , the trajectory column 6 slides downward along the width direction of the watch band. In this way, the trajectory column can slide back and forth between the extended position and the retracted position along the trajectory groove.

[0121] In Figures 3 to 5B the example shown, there is an extended position and a retracted position, that is, two gears of one extension and one retraction. For example, as Figure 6, along the annular track of the track groove 5, the track groove 5 includes a connected first track groove 51 and a second track groove 52; when the track post 6 slides along the first track groove, it can slide from the first fixed position (extended position) to the second fixed position (contracted position) to tighten the watch band; when the track post 6 slides along the second track groove, it can slide from the second fixed position (contracted position) to the first fixed position (extended position) to loosen the watch band. In this example, the track path passed by the first track groove 51 from the first fixed position, position A, the first temporary position, position B to the second fixed position, and the track path passed by the second track groove 52 from the second fixed position, position C, position D to the first fixed position.

[0122] In some other examples, multiple telescopic gears can be included to increase the fine-tuning range.

[0123] For example, as Figure 7 shown in the example, a fine-tuning structure for the length of the watch band including three gears is shown, that is, including a first fixed position, a second fixed position, and a third fixed position. The track post 6 can also slide unidirectionally in a loop in the track groove 5 along the Figure 7 dotted line with an arrow shown to achieve the switching of multiple gears.

[0124] See Figure 7 , along the length direction of the watch band (such as the Figure 7 P direction shown), the third fixed position is between the first fixed position and the second fixed position. The first fixed position can be understood as the extended position, and the second fixed position and the third fixed position are in the contracted position compared to the first fixed position.

[0125] In some other examples, along the length direction of the watch band, the second fixed position is closer to the first fixed position than the third fixed position.

[0126] In the example of this application, the second fixed position and the third fixed position in the contracted position are on the same side of the first fixed position and are closer to the watch band setting than the first fixed position.

[0127] See Figure 7 , along the width direction of the watch band (such as the Figure 7 S direction shown), the first fixed position, the second fixed position, and the third fixed position are arranged at intervals.

[0128] In some other examples, more gears can be set according to the Figure 4 and Figure 6 adjustment principle to further increase the fine-tuning range.

[0129] In some implementation structures, such as Figure 8The wall surface of the slider 4 used to enclose the track groove 5 includes: a first abutting surface 81 and a second abutting surface 82 , both of which are facing the direction of the strap 10 , and the second abutting surface 82 is closer to the strap 10 than the first abutting surface 81 .

[0130] In the first fixed position (extended position), the track post 6 abuts against the first abutment surface 81 ; in the second fixed position (retracted position), the track post 6 abuts against the second abutment surface 82 .

[0131] In this application example, Figure 8 Since the elastic member 3 is used to apply an elastic force F to the movable plate 2 in the direction of the strap 10, no matter the track column 6 abuts against the first abutting surface 81 or the second abutting surface 82, it can be subjected to the squeezing force of the slider 4 on the track column 6 in the direction of the strap, thereby making the strap stably in an extended state or a contracted state, thereby improving the stability and reliability of the device.

[0132] The first abutting surface 81 or the second abutting surface 82 has various shapes. Figure 8 , the first abutting surface 81 and the second abutting surface 82 are both arcuate surfaces. In order to make the track column 6 closely fit with the corresponding abutting surface, the surface of the track column 6 that fits with the first abutting surface 81 and the surface that fits with the second abutting surface 82 include an arcuate surface. For another example, the first abutting surface 81 and the second abutting surface 82 can both be planes, and the surface of the track column 6 that fits with the first abutting surface 81 and the surface that fits with the second abutting surface 82 include a plane.

[0133] In the example of the present application, there are various structures for forming the track groove, for example, Figure 9 In the embodiment, the slider 4 includes a first protrusion 41 and a second protrusion 42 , and the second protrusion 42 surrounds the periphery of the first protrusion 41 to form an annular track groove 5 between the first protrusion 41 and the second protrusion 42 .

[0134] In this example, the first abutting surface 81 is located on the wall surface of the second protrusion 42 that forms the track groove 5 ; and the second abutting surface 82 is located on the wall surface of the first protrusion 41 that forms the track groove 5 .

[0135] like Figure 10 , Figure 10 The exploded view of the partial structure of the housing 1 and the movable plate 2 is shown as an example. Figure 10 In the example, the slider 4 is slidably arranged on the movable plate 2, and a slide groove 7 can be provided on the movable plate 2, and the extending direction of the slide groove is parallel to the width direction of the strap (such as Figure 10 S direction).

[0136] The slider 4 is slidably arranged in the chute 7 and can slide along the extension direction of the chute. For example, the slider 4 includes a first side face and a second side face that face each other, and the arrangement directions of the first side face and the second side face are parallel to the extension direction of the watch band (such as Figure 10 the P direction); both the first side face and the second side face are slidably connected to the movable plate 2. Exemplarily, the first side face and the second side face of the slider 4 can be respectively in clearance fit with the movable plate, so that the slider can slide along the chute.

[0137] In some other examples, a track can be arranged on the slider 4, and a rail groove can be arranged on the movable plate, and the track of the slider can slide along the rail groove on the movable plate. To realize the sliding of the slider on the movable plate.

[0138] In the examples of this application, such as Figure 10 , the elastic member 3 can be selected as a spring, one end of the spring is connected to the housing 1, and the other end is connected to the movable plate 2. And, at the first fixed position (such as the extended position) and the second fixed position (such as the contracted position), the spring is in a stretched state, so that the watch band is maintained in the extended state or the contracted state.

[0139] In some examples, a first mounting post can be arranged on the housing 1, a second mounting post can be arranged on the movable plate 2, one end of the spring is fixed on the first mounting post, and the other end is fixed on the second mounting post.

[0140] In order to improve the stability of the movement of the movable plate 2 and make the watch band stably in the extended state and the contracted state, such as Figure 10 , two springs can be arranged, and the two springs are symmetrically arranged, so that the pulling forces of the springs on the movable plate are relatively symmetrical.

[0141] In some structures, such as Figure 10 , a mounting groove 9 can be arranged on the movable plate 2, and the spring is arranged in the mounting groove 9. In this way, not only can the thickness dimension of the watch buckle be compressed, but also it has a guiding and limiting function, so that the spring compresses and extends along its length direction.

[0142] For the convenience of disassembly and assembly, in some realizable structures, such as Figure 11 , Figure 11 An exploded view of the watch buckle is exemplarily shown. In this implementation structure, the housing 1 can include a bottom plate 11 and a cover body 12, the bottom plate 11 and the cover body 12 are buckled to form a chamber, and the movable plate 2 is slidably arranged in this chamber.

[0143] The bottom plate 11 and the cover body 12 are detachably connected. For example, a threaded connector can be used to connect the bottom plate 11 and the cover body 12. To simplify the structure, such as Figure 11, the second mounting post 22 can be arranged on the movable plate 2, the first mounting post 21 can be arranged on the cover body 12, a hole can be formed in the first mounting post 21, and the threaded connecting piece 31 can extend through the bottom plate 11 to the hole in the first mounting post 21 to fixedly connect the bottom plate 11 and the cover body 12.

[0144] When the buckle of the present application example is on the watch band, such as Figure 11 , the buckle is rotatably connected to the watch band. In addition, it can further include a first plate 51 and a second plate 52. One end of the first plate 51 is fixedly connected to the housing 1, the other end is rotatably connected to the second plate 52, the second plate 52 is snap-connected to the housing 1, and the second plate 52 can be connected to another watch band.

[0145] The buckle of the present application that can finely adjust the length of the watch band can be applied not only to a watch band with holes as shown in Figure 1 , but also to a watch band including multiple links, and can also be applied to watch bands with other structures.

[0146] In the description of this specification, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0147] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

Claims

1. A watch buckle, which is used to connect a watch strap, and is characterized in that, The buckle includes: a housing; a movable plate that can move along the extending direction of the watch band, and the movable plate is used for connecting with the watch band; a slider and a track post, the slider has an annular track groove, the track post is slidably arranged in the track groove, and one of the slider and the track post is arranged on the housing, and the other is arranged on the movable plate; an elastic member that connects the housing and the movable plate; the track post can slide between a first fixed position and a second fixed position along the annular track of the track groove, and the slider moves along a direction intersecting with the extending direction of the watch band to adjust the tightness of the watch band; the elastic member is used for applying elastic forces in directions away from each other to the movable plate and the housing, so that the track post is kept at the first fixed position and the second fixed position.

2. The buckle according to claim 1, characterized in that, When the watch band is tightened, the movable plate and the housing approach each other, the track post slides along the track groove from the first fixed position to a first temporary position, and under the elastic force of the elastic member, the track post slides along the track groove from the first temporary position to the second fixed position; In the extending direction of the watch band, the second fixed position is located between the first fixed position and the first temporary position; In the width direction of the watch band, the first temporary position is located between the first fixed position and the second fixed position.

3. The buckle according to claim 2, characterized in that, The track of the track post sliding from the first fixed position to the first temporary position includes: a track along a first direction and a track along the width direction of the watch band, and the first direction is the direction in which the movable plate and the housing approach each other.

4. The buckle according to claim 2 or 3, characterized in that, The track of the track post sliding from the first temporary position to the second fixed position includes: a track along a second direction and a track along the width direction of the watch band, and the second direction is the direction in which the movable plate and the housing move away from each other.

5. The watch buckle according to any one of claims 2-4, characterized in that, When the watch band is loosened, the movable plate and the housing approach each other, the track post slides along the track groove from the second fixed position to a second temporary position, and under the elastic force of the elastic member, the movable plate and the housing move away from each other, and the track post slides along the track groove from the second temporary position to the first fixed position; In the extending direction of the watch band, the second fixed position is located between the first fixed position and the second temporary position; In the width direction of the watch band, the second fixed position is located between the first fixed position and the second temporary position.

6. The buckle according to claim 5, characterized in that, The track of the track post sliding from the second fixed position to the second temporary position includes: a track along a first direction and a track along the width direction of the watch band, and the first direction is the direction in which the movable plate and the housing approach each other.

7. The buckle according to claim 5 or 6, characterized in that The track of the track post sliding from the second temporary position to the first fixed position includes: a track along a second direction and a track along the width direction of the watch band, and the second direction is the direction in which the movable plate and the housing move away from each other.

8. The buckle according to any one of claims 5-7, characterized in that, In the width direction of the watch band, the second fixed position is located between the first temporary position and the second temporary position.

9. The buckle according to any one of claims 5-8, characterized in that, The trajectory of the trajectory post sliding from the first fixed position to the first temporary position includes a first trajectory segment along the width direction of the watch band. The trajectory of the trajectory post sliding from the second temporary position to the first fixed position includes a second trajectory segment along the width direction of the watch band. The first trajectory segment and the second trajectory segment point in opposite directions.

10. The watch buckle according to any one of claims 1-9, characterized in that When the watch band is tightened and the trajectory post slides along the trajectory groove from the first fixed position towards the second fixed position, the slider slides along a third direction parallel to the width direction of the watch band; When the watch band is loosened and the trajectory post slides along the trajectory groove from the second fixed position towards the first fixed position, the slider slides along a fourth direction opposite to the third direction.

11. The buckle according to any one of claims 1-10, characterized in that, When the movable plate moves along the extending direction of the watch band, the trajectory post can slide unidirectionally along the annular trajectory groove, so that the trajectory post slides between the first fixed position and the second fixed position.

12. The buckle according to any one of claims 1-11, characterized in that, Along the annular trajectory of the trajectory groove, the trajectory groove includes a connected first trajectory groove and a second trajectory groove; When the trajectory post slides along the first trajectory groove, it can slide from the first fixed position to the second fixed position; When the trajectory post slides along the second trajectory groove, it can slide from the second fixed position to the first fixed position.

13. The buckle according to any one of claims 1-12, characterized in that, The wall surface of the slider for enclosing the trajectory groove includes: a first abutting surface and a second abutting surface. Both the first abutting surface and the second abutting surface face towards the watch band direction, and the second abutting surface is closer to the watch band than the first abutting surface; At the first fixed position, the trajectory post abuts against the first abutting surface; At the second fixed position, the trajectory post abuts against the second abutting surface.

14. The buckle according to claim 13, characterized in that, The trajectory post includes a first arc surface, and any one of the first abutting surface and the second abutting surface includes a second arc surface; When the trajectory post is held at the first fixed position or the second fixed position, under the elastic force of the elastic member, the first arc surface is attached to the second arc surface.

15. The buckle according to claim 13 or 14, characterized in that, The slider includes a first convex block and a second convex block. The second convex block surrounds the first convex block, and an annular trajectory groove is formed between the first convex block and the second convex block; The first abutting surface is located on the wall surface of the second convex block enclosing the trajectory groove; The second abutting surface is located on the wall surface of the first convex block enclosing the trajectory groove.

16. The buckle according to any one of claims 1-15, characterized in that, The slider is slidably arranged on the movable plate, and the trajectory post is arranged on the housing; A sliding groove for the slider to slide is formed on the movable plate, and the extending direction of the sliding groove is parallel to the width direction of the watch band.

17. The buckle according to claim 16, characterized in that, The slider includes a first side surface and a second side surface facing each other, and the arranging directions of the first side surface and the second side surface are parallel to the extending direction of the watch band; Both the first side surface and the second side surface are slidably connected to the movable plate.

18. The buckle according to any one of claims 1-17, characterized in that, The elastic member includes a spring, one end of the spring is connected to the housing, and the other end is connected to the movable plate; In the first fixed position and the second fixed position, the spring is in a stretched state.

19. The buckle according to claim 18, wherein An installation groove is formed on the movable plate, and the spring is arranged in the installation groove.

20. A watchband assembly, characterized in that, Comprising: The first watch band; The watch buckle according to any one of claims 1-19; Wherein, the movable plate of the watch buckle is connected to the first watch band.

21. The strap assembly according to claim 20, wherein, The movable plate is rotatably connected to the first watch band; The watch band assembly further includes a second watch band, a first plate and a second plate; One end of the first plate is fixedly connected to the housing, the other end is rotatably connected to the second plate, the second plate is snap-connected to the housing, and the second plate is connected to the second watch band.

22. A wearable device, characterized in that, Comprising: The watch face; The watch band assembly according to claim 20 or 21; Wherein, the first watch band of the watch band assembly is connected to the watch face.

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