Wristband and wearable device using the same

Abstract

The present application discloses a watch band and a wearable device using the same. The structure of the watch band includes a first joint, a second joint and a driving component. The second joint is rotatably connected to the first joint. The driving component is used to drive one of the first joint and the second joint to rotate towards the main surface of the other, so that the watch band enters a retracted state. Wherein, the driving component is further used to drive one of the first joint and the second joint to rotate away from the main surface of the other, so that the watch band enters an open state. In the above manner, the watch band can be automatically adjusted.

Description

Technical Field

[0001] This application relates to the field of wearable devices, and particularly to a watch band and a wearable device using the same. Background Art

[0002] A wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories.

[0003] For existing wearable devices such as watches, the watch band is generally adjusted manually. Due to the inconvenience of single-handed operation, it is difficult to adjust the watch band, resulting in a poor user experience. Summary of the Invention

[0004] This application provides a watch band and a wearable device using the same to solve the problem of inconvenience in manually adjusting the watch band in the prior art.

[0005] To solve the above technical problems, a technical solution adopted in this application is: to provide a watch band, the watch band includes: a first joint; a second joint rotatably connected to the first joint; a driving component for driving one of the first joint and the second joint to rotate towards the main surface of the other, so that the watch band enters a retracted state; wherein, the driving component is further configured to drive one of the first joint and the second joint to rotate away from the main surface of the other, so that the watch band enters an open state.

[0006] According to an embodiment provided by the present invention, the first joint rotates relative to the second joint around a first rotation axis, and the driving component includes a first fixing member disposed on the main surface of the first joint, a second fixing member disposed on the main surface of the second joint, and a telescopic component connecting the first fixing member and the second fixing member; wherein, the telescopic component drives one of the first fixing member and the second fixing member to approach the other, so that one of the first joint and the second joint rotates towards the main surface of the other, and the telescopic component drives one of the first fixing member and the second fixing member to move away from the other, so that one of the first joint and the second joint rotates away from the main surface of the other.

[0007] According to an embodiment provided by the present invention, the first fixing member is a first guide rail parallel to the first rotation axis, and the second fixing member is a second guide rail parallel to the first rotation axis.

[0008] According to an embodiment provided by the present invention, the telescopic assembly includes two first sliders slidably disposed on the first guide rail, two second sliders slidably disposed on the second guide rail, and two first linkages cross-hinged; one end of each of the two first linkages is hinged to one of the two first sliders and one of the two second sliders respectively, and the other end of each of the two first linkages is hinged to the other of the two first sliders and the other of the two second sliders respectively; wherein, the hinge axes between the two first linkages, the hinge axes between the first linkages and the first sliders, and the hinge axes between the first linkages and the second sliders are all parallel to each other and perpendicular to the plane where the first guide rail and the second guide rail are located.

[0009] According to an embodiment provided by the present invention, the telescopic assembly further includes a driving member for driving the two first sliders to approach or move away from each other, so that the two first linkages rotate relative to each other, thereby driving the two second sliders to approach or move away from each other, and causing the second guide rail to move away from or close to the first guide rail.

[0010] According to an embodiment provided by the present invention, the driving member includes: a rotating motor; a rotating screw connected to the output end of the rotating motor; a torsion gear meshing with the rotating screw; a first connecting member with two ends hinged to the torsion gear and one of the two first sliders respectively; a second connecting member with two ends hinged to the torsion gear and the other of the two first sliders respectively; wherein, when the rotating motor drives the rotating screw to rotate in the first direction around a rotating shaft parallel to the first rotating shaft, it drives the torsion gear to perform a first torsion around a rotating shaft parallel to the hinge axis between the two first linkages, and then drives the two first sliders to approach each other through the first connecting member and the second connecting member; when the rotating motor drives the rotating screw to rotate in the second direction around a rotating shaft parallel to the first rotating shaft, it drives the torsion gear to perform a second torsion around a rotating shaft parallel to the hinge axis between the two first linkages, and then drives the two first sliders to move away from each other through the first connecting member and the second connecting member.

[0011] According to an embodiment provided by the present invention, the watchband includes a third joint rotatably connected to the second joint, and the third joint rotates relative to the second joint around a second rotating shaft; wherein, the second rotating shaft is parallel to the first rotating shaft.

[0012] According to an embodiment provided by the present invention, the driving assembly includes a third guide rail disposed on the main surface of the third joint and parallel to the second rotation axis, two third sliders slidably disposed on the third guide rail, and two second linkages cross-hinged. One end of one of the two second linkages is respectively hinged to one of the two second sliders and one of the two third sliders, and the two ends of the other of the two second linkages are respectively hinged to the other of the two second sliders and the other of the two third sliders.

[0013] According to an embodiment provided by the present invention, the watch band further includes a sensor disposed on the third joint. The sensor is configured to detect the pressure information experienced by the second joint and control the driving assembly to drive one of the first joint and the second joint to rotate towards or away from the main surface of the other according to the pressure information.

[0014] According to an embodiment provided by the present invention, a first abutting portion is disposed on the main surface of the first joint, and a second abutting portion corresponding to the first abutting portion is disposed on the main surface of the second joint. When one of the first joint and the second joint rotates towards the main surface of the other, the first abutting portion and the second abutting portion approach or abut against each other to limit the rotation amplitude of the first joint relative to the second joint.

[0015] According to an embodiment provided by the present invention, the first abutting portion includes a first accommodating groove, and the second abutting portion includes a second accommodating groove. At least a part of the driving assembly is located in the first accommodating groove and the second accommodating groove.

[0016] According to an embodiment provided by the present invention, the first abutting portion includes two spaced-apart first abutting strips, and the two first abutting strips cooperate to form the first accommodating groove. The two ends of the first guide rail are respectively abutted against the two first abutting strips; the second abutting portion includes two spaced-apart second abutting strips, and the two second abutting strips cooperate to form the second accommodating groove. The two ends of the second guide rail are respectively abutted against the two second abutting strips.

[0017] According to an embodiment provided by the present invention, both the first joint and the second joint are arc-shaped joints, and the main surfaces of the first joint and the second joint are both inner curved surfaces.

[0018] To solve the above technical problems, another technical solution adopted by the present application is: to provide a wearable device, the wearable device includes a main body unit and the watch band according to any one of the above, and the two watch bands are respectively disposed at both ends of the main body unit.

[0019] Beneficial effects: Different from the prior art, in this application, a driving component is provided to drive one of the first joint and the second joint to rotate towards the main surface of the other, so that the watch band enters a retracted state, or drive one of the second joint and the second joint to rotate away from the main surface of the other, so that the watch band enters an open state, thereby automatically adjusting the tightness of the watch band and improving the user experience. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of an embodiment of a watch band provided by this application;

[0021] Figure 2 is Figure 1 a schematic structural diagram of the watch band shown from another angle;

[0022] Figure 3 is Figure 1 a schematic structural diagram of the interior of the watch band shown;

[0023] Figure 4 is Figure 1 a schematic structural diagram of the interior of the watch band shown from another angle;

[0024] Figure 5 is a schematic structural diagram of an embodiment of a wearable device provided by this application. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by this application.

[0027] Please refer to Figures 1-4 , this application provides a watch band 10, which includes a first joint 100, a second joint 200, and a driving component 300.

[0028] As shown Figure 1 in FIG. Figure 1 , the first joint 100 is rotatably connected to the second joint 200, and the driving assembly 300 can be used to drive one of the first joint 100 and the second joint 200 to rotate towards the main surface of the other, so that the watch band 10 enters the retracted state. Optionally, the driving assembly 300 can also be used to drive one of the first joint 100 and the second joint 200 to rotate away from the main surface of the other, so that the watch band 10 enters the opened state.

[0029] In an alternative scenario, when the watch band 10 is relatively open relative to the user's wrist or needs to be worn, the driving assembly 300 can drive the first joint 100 to rotate towards the main surface of the second joint 200, so that the watch band 10 can enter the retracted state, making the watch band 10 fit the user's wrist.

[0030] In another alternative scenario, when the watch band 10 is relatively tight relative to the user's wrist or needs to be removed, the driving assembly 300 can drive the first joint 100 to rotate away from the main surface of the second joint 200, so that the watch band 10 can enter the opened state, making the watch band 10 fit the user's wrist.

[0031] In the above embodiments, by setting the driving assembly 300 to drive one of the first joint 100 and the second joint 200 to rotate towards the main surface of the other, so that the watch band 10 enters the retracted state, or drive one of the second joint 100 and the second joint 200 to rotate away from the main surface of the other, so that the watch band 10 enters the opened state, the tightness of the watch band can be automatically adjusted, thereby improving the user experience.

[0032] Optionally, in other embodiments, the driving assembly 300 can also drive the second joint 200 to rotate towards or away from the first joint 100, which is not limited here.

[0033] In an alternative embodiment, the first joint 100 rotates relative to the second joint 200 about a first rotation axis. Optionally, the first rotation axis can be a virtual axis or a solid shaft, which is not limited here.

[0034] As shown Figure 3As shown, the drive assembly 300 includes a first fixing member 310 disposed on the main surface 110 of the first joint 100, a second fixing member 320 disposed on the main surface 210 of the second joint 200, and a telescopic assembly 330 connecting the first fixing member 310 and the second fixing member 320; the telescopic assembly 330 drives one of the first fixing member 310 and the second fixing member 320 to approach the other so that one of the first joint 100 and the second joint 200 rotates toward the main surface of the other, and the telescopic assembly 330 drives one of the first fixing member 310 and the second fixing member 320 to move away from the other so that one of the first joint 100 and the second joint 200 rotates away from the main surface of the other.

[0035] Optionally, since the first joint 100 and the second joint 200 are rotatably connected, when the telescopic assembly 330 drives the first fixing member 310 disposed on the first joint 100 and the second fixing member 320 disposed on the second joint 200 to approach or move away from each other, the translational motion is converted into a rotational motion through the first rotation axis, thereby causing the first joint 100 to rotate relative to the second joint 200.

[0036] As Figure 3 shown, the first fixing member 310 may specifically be a first guide rail 311, and the second fixing member 320 may specifically be a second guide rail 321, and both the first guide rail 311 and the second guide rail 321 are arranged parallel to the first rotation axis.

[0037] As Figure 3 shown, the telescopic assembly 330 includes two first sliders 312 slidably disposed on the first guide rail 311, two second sliders 322 slidably disposed on the second guide rail 321, and two first link rods 340 cross-hinged; one end of each of the two first link rods 340 is hinged to one of the two first sliders 312 and one of the two second sliders 322 respectively, and the other end of each of the two first link rods 340 is hinged to the other of the two first sliders 312 and the other of the two second sliders 322 respectively.

[0038] Optionally, the two first sliders 312 are slidably disposed on the first guide rail 311, the two second sliders 322 are slidably disposed on the second guide rail 321, and the two cross-hinged first link rods 340 are in a scissor shape, and the four ends are respectively hinged to the two first sliders 312 and the two second sliders 322 one by one.

[0039] Optionally, the hinge axes between the two first link rods 340, the hinge axes between the first link rods 340 and the first sliders 312, and the hinge axes between the first link rods 340 and the second sliders 322 are all parallel to each other and perpendicular to the plane where the first guide rail 311 and the second guide rail 321 are located.

[0040] Optionally, the hinge axes between the two first linkages 340, the hinge axes between the first linkage 340 and the first slider 312, and the hinge axes between the first linkage 340 and the second slider 322 can all be solid axes or virtual axes, and the hinge axis between the two first linkages 340, the hinge axis between the first linkage 340 and the first slider 312 are parallel to each other and both perpendicular to the plane where the first guide rail 311 and the second guide rail 321 are located.

[0041] As Figure 3 shown, the telescopic assembly 330 further includes a driving member 370, and the driving member 370 is used to drive the two first sliders 312 to approach or separate from each other, so that the two first linkages 340 rotate relative to each other, and further drive the two second sliders 322 to approach or separate from each other, and make the second guide rail 321 move away from or close to the first guide rail 311.

[0042] As Figure 3 shown, the driving member 370 includes a rotating motor 371, a rotating screw 372, a torsion gear 373, a first connecting member 374 and a second connecting member 375.

[0043] As Figure 3 shown, the rotating screw 372 can be connected to the output end of the rotating motor 371, specifically by means of gears or belts. The two ends of the first connecting member 374 are respectively hinged to the torsion gear 373 and one of the two first sliders 312; the two ends of the second connecting member 375 are respectively hinged to the torsion gear 373 and the other of the two first sliders 312.

[0044] Optionally, the rotating screw 372 can rotate around a rotating shaft parallel to the first rotating shaft, the torsion gear 373 can twist around a rotating shaft parallel to the hinge axis between the two first linkages, and the hinge axis between the first connecting member 374 and the first slider 312, the hinge axis between the first connecting member 374 and the torsion gear 373, the hinge axis between the second connecting member 375 and the first slider 312, and the hinge axis between the second connecting member 375 and the torsion gear 373 are all parallel to the hinge axis between the two first linkages.

[0045] In one scenario, when the rotating motor 371 drives the rotating screw 372 to rotate in the first direction around a rotating shaft parallel to the first rotating shaft, it further drives the torsion gear 373 to perform a first twist around a rotating shaft parallel to the hinge axis between the two first linkages 340, and then drives the two first sliders 312 to approach each other through the first connecting member 374 and the second connecting member 375.

[0046] In another alternative scenario, when the rotary motor 371 drives the rotary screw 372 to rotate in the second direction about a rotation axis parallel to the first rotation axis, where the second direction is opposite to the first direction, the torsion gear 373 is further driven to perform a second torsion about a rotation axis parallel to the hinge axis between the two first linkages 340, and then the two first sliders 312 are driven to move away from each other through the first connecting member 374 and the second connecting member 375.

[0047] In an alternative scenario, when the driving member 370 drives the two first sliders 312 to move closer to each other, the two first linkages 340 hinged to the two first sliders 312 are driven to start rotating. The included angle α formed by the link segments between the hinge points of one of the two first sliders 312 and the two first linkages 340 and the link segments between the hinge points of the other of the two first sliders 312 and the two first linkages 340 starts to decrease. Since the lengths of the two link segments remain unchanged, the distance between the hinge points of the two first linkages 340 and the first guide rail 311 will increase. By a similar principle, the two first linkages 340 will further drive the two second sliders 312 to move closer to each other, and the distance between the hinge points of the two first linkages 340 and the second guide rail 321 will increase. Therefore, the first guide rail 311 and the second guide rail 321 start to move away from each other.

[0048] In another alternative scenario, when the driving member 370 drives the two first sliders 312 to move closer to each other, the two first linkages 340 hinged to the two first sliders 312 are driven to start rotating, and the included angle α formed by the two link segments starts to increase. Then the distance between the hinge points of the two first linkages 340 and the first guide rail 311 will decrease. By a similar principle, the two first linkages 340 will further drive the two second sliders 312 to move away from each other, and the distance between the hinge points of the two first linkages 340 and the second guide rail 321 will decrease. Therefore, the first guide rail 311 and the second guide rail 321 start to move closer to each other.

[0049] As Figure 3 shown, the watch band 10 further includes a third joint 400. The third joint 400 is rotatably connected to the second joint 200, and the third joint 400 can rotate relative to the second joint 200 about a second rotation axis. Optionally, the second rotation axis can also be a solid axis or a virtual axis line, and the second rotation axis is parallel to the first rotation axis.

[0050] As Figure 3As shown, the driving component 300 further includes a third guide rail 350 disposed on the main surface 410 of the third joint 400 and parallel to the second rotation axis, two third sliders 351 slidably disposed on the third guide rail 350, and two second linkages 360 cross-hinged. One end of one of the two second linkages 360 is respectively hinged to one of the two second sliders 322 and one of the two third sliders 351, and the two ends of the other of the two second linkages 360 are respectively hinged to the other of the two second sliders 322 and the other of the two third sliders 351. Optionally, the hinge axis between the two second linkages 360, the hinge axis between the second linkage 360 and the second slider 322, and the hinge axis between the second linkage 360 and the third slider 351 can all be a solid axis or a virtual axis line. The hinge axis between the two second linkages 360, the hinge axis between the second linkage 360 and the second slider 322, and the hinge axis between the second linkage 360 and the third slider 351 are parallel to each other and can all be perpendicular to the plane where the second guide rail 321 and the third guide rail 350 are located.

[0051] Optionally, similar to the principle that when the two first sliders 312 approach or move away from each other, they will synchronously drive the two second sliders 322 to approach or move away from each other, when the two second sliders 322 approach or move away from each other, they will also synchronously drive the two third sliders 351 to approach or move away from each other.

[0052] In an optional scenario, when the driving member 370 drives the two first sliders 312 to approach each other, it will drive the two first linkages 340 to start rotating and the two second sliders 322 to approach each other, thereby causing the first guide rail 311 and the second guide rail 321 to move away from each other. Similarly, when the two second sliders 322 approach each other, it will further drive the two second linkages 360 to start rotating and the two third sliders 351 to approach each other, thereby causing the second guide rail 321 and the third guide rail 350 to move away from each other, and further causing the third joint 400 to rotate towards the second joint 200, so that the entire watch band 10 enters the retracted state.

[0053] In another optional scenario, when the driving member 370 drives the two first sliders 312 to move away from each other, it will drive the two first linkages 340 to start rotating and the two second sliders 322 to move away from each other, thereby causing the first guide rail 311 and the second guide rail 321 to approach each other. Similarly, when the two second sliders 322 move away from each other, it will further drive the two second linkages 360 to start rotating and the two third sliders 351 to move away from each other, thereby causing the second guide rail 321 and the third guide rail 350 to approach each other, and further causing the third joint 400 to rotate towards the second joint 200, so that the entire watch band 10 enters the open state.

[0054] Such as Figure 1 and Figure 2As shown, the watch band 10 further includes a sensor 420 disposed at the third joint 400, and the sensor 420 is configured to detect the pressure information experienced by the third joint 400, and control the driving assembly 300 to drive one of the first joint 100 and the second joint 200 to rotate towards or away from the main surface of the other according to the pressure information.

[0055] Optionally, if the pressure information detected by the sensor 420 indicates that the pressure experienced by the third joint 400 is small or there is no pressure, and the entire watch band 10 is relatively open with respect to the user's wrist, the driving assembly 300 can be controlled to drive one of the first joint 100 and the second joint 200 to rotate towards the main surface of the other, so that the watch band 10 enters a retracted state. If the pressure information detected by the sensor 420 indicates that the pressure experienced by the third joint 400 is large, and the entire watch band 10 is relatively tight with respect to the user's wrist, the driving assembly 300 can be controlled to drive one of the first joint 100 and the second joint 200 to rotate away from the main surface of the other, so that the watch band 10 enters an open state.

[0056] In the above embodiment, by setting the cooperation between the driving member 370, the first guide rail 311, the first slider 312, the second guide rail 321, the second slider 322, and the first connecting rod 340, the translational motion can be converted into a rotational motion, so that the first joint 100 rotates relative to the second joint 200, having good stability and facilitating volume reduction. Further, by setting the third guide rail 350, the third slider 351, and the second connecting rod 360, the third joint 400 can rotate relative to the second joint 200, so that a driving member can drive the rotation of multiple joint units, which is beneficial to cost saving and structural simplification.

[0057] Optionally, based on the principle of the above embodiment, the watch band 10 may further include a fourth joint, and the fourth joint unit may be rotatably connected to the first joint 100 or the third joint 400, and the connection manner is similar to the connection manner between the first joint 100 and the second joint 200 in the above embodiment.

[0058] In an alternative embodiment, the fourth joint is rotatably connected to the first joint 100. The drive assembly 300 may correspondingly include a fourth guide rail, two fourth sliders slidably disposed on the fourth guide rail, and two third linkages cross-hinged. One end of one of the two third linkages is respectively hinged to one of the two first sliders 312 and one of the two fourth sliders, and the other end of the other of the two third linkages is respectively hinged to the other of the two first sliders 312 and the other of the two fourth sliders. Similarly, when the two first sliders 312 approach or move away from each other, they will drive the first guide rail 311 and the fourth guide rail to move away from or close to each other, thereby driving the fourth joint to rotate away from or towards the first joint 100, and further causing the entire watch band 10 to enter the open state or the retracted state.

[0059] As Figure 3 and Figure 4 As shown, a first abutting portion 120 is provided on the main surface 110 of the first joint 100, and a second abutting portion 220 corresponding to the first abutting portion 120 is provided on the main surface 210 of the second joint 200. When one of the first joint 100 and the second joint 200 rotates towards the main surface of the other, the first abutting portion 120 and the second abutting portion 220 approach or abut against each other to limit the rotation amplitude of the first joint 100 relative to the second joint 200.

[0060] In the above embodiment, by providing the first abutting portion 120 and the second abutting portion 220 to limit the rotation amplitude of the first joint 100 relative to the second joint 200, on the one hand, it can effectively protect the drive assembly 300 to prevent damage to the entire drive assembly 300 due to too large an amplitude. On the other hand, it can protect the user's wrist to prevent the first joint 100 from rotating too much towards the second joint 200, resulting in excessive retraction of the entire watch band 10 and causing harm to the user.

[0061] As Figure 3 and Figure 4 As shown, the first abutting portion 120 includes a first receiving groove 121, the second abutting portion 220 includes a second receiving groove 221, and at least a part of the drive assembly 300 is located in the first receiving groove 121 and the second receiving groove 221.

[0062] Optionally, the first abutting portion 120 includes two first abutting strips 122 arranged at intervals, and the two first abutting strips 122 cooperate to form the first receiving groove 121. Both ends of the first guide rail 311 are respectively abutted against the two first abutting strips 122; the second abutting portion 220 includes two second abutting strips 222 arranged at intervals, and the two second abutting strips 222 cooperate to form the second receiving groove 221. Both ends of the second guide rail 321 are respectively abutted against the two second abutting strips 220.

[0063] Optionally, the first guide rail 311 and the two first sliders 312 can be located within the first receiving groove 121, the second guide rail 321 and the two second sliders 322 can be located within the second receiving groove 221, and the main bodies of the two first link rods 340 can be located within the first receiving groove 121. The main bodies of the two second link rods 360 can be located within the second receiving groove 221, and there are no restrictions here.

[0064] In the above embodiments, by using the first abutting portion 120 to form the first receiving groove 121 and using the second abutting portion 220 to form the second receiving groove 221, it is possible to effectively accommodate part of the driving assembly 300. On the one hand, it is beneficial to the overall aesthetics, and on the other hand, it can protect the driving assembly 300.

[0065] As Figure 1 and Figure 2 shown, in an alternative embodiment, both the first joint 100 and the second joint 200 are arc-shaped joints, and the main surfaces 110 of the first joint 100 and the main surfaces 210 of the second joint 200 are both inner curved surfaces. By setting the first joint 100 and the second joint 200 as arc-shaped joints, the aesthetics of the entire watch band 10 can be improved, making the entire watch band 10 more suitable for the user's wrist, etc.

[0066] As Figure 5 shown, the present application also provides a wearable device 1, which includes a main body unit 20 and the watch band 10 described in any of the above embodiments. Among them, the two watch bands 10 are respectively arranged at both ends of the main body unit 20.

[0067] Optionally, the driving member in the driving assembly 300 can be arranged on the watch band 10 or on the main body unit 20, and no specific limitation is made here.

[0068] In summary, in the present application, a driving component 300 is provided to drive one of the first joint 100 and the second joint 200 to rotate towards the main surface of the other, so that the watch band 10 enters a retracted state, or drive one of the second joint 100 and the second joint 200 to rotate away from the main surface of the other, so that the watch band 10 enters an open state, thereby automatically adjusting the tightness of the watch band and improving the user experience. And by setting the cooperation between the driving member 370, the first guide rail 311, the first slider 312, the second guide rail 321, the second slider 322 and the first connecting rod 340, the translational motion can be converted into a rotational motion, so that the first joint 100 rotates relative to the second joint 200. Compared with directly driving the first joint 100 to rotate relative to the second joint 200 by a rotary motor, it has better stability and is convenient for reducing the volume. Further, by setting the third guide rail 350, the third slider 351 and the second connecting rod 360, the third joint 400 can rotate relative to the second joint 200, so that a driving member can drive the rotation of multiple joint units, which is beneficial to cost saving and structure simplification. Further, by setting the first abutting portion 120 and the second abutting portion 220 to limit the rotation amplitude of the first joint 100 relative to the second joint 200. On the one hand, the driving component 300 can be effectively protected to prevent damage to the entire driving component 300 due to too large an amplitude. On the other hand, the user's wrist can be protected to prevent the first joint 100 from rotating too much towards the second joint 200, resulting in excessive retraction of the entire watch band 10 and causing harm to the user.

[0069] The above is only the implementation mode of the present application, and does not limit the patent scope of the present application. Any equivalent result or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, is similarly included in the patent protection scope of the present application.

Claims

1. A watch band, characterized in that, the watch band includes: a first joint; a second joint rotatably connected to the first joint; a driving assembly for driving one of the first joint and the second joint to rotate towards the main surface of the other, so that the watch band enters a retracted state; wherein, the driving assembly is further configured to drive one of the first joint and the second joint to rotate away from the main surface of the other, so that the watch band enters an open state; the first joint rotates relative to the second joint about a first rotation axis, and the driving assembly includes a first fixing member disposed on the main surface of the first joint, a second fixing member disposed on the main surface of the second joint, and a telescopic assembly connecting the first fixing member and the second fixing member; wherein, the telescopic assembly drives one of the first fixing member and the second fixing member to approach the other, so that one of the first joint and the second joint rotates towards the main surface of the other, and the telescopic assembly drives one of the first fixing member and the second fixing member to move away from the other, so that one of the first joint and the second joint rotates away from the main surface of the other; the first fixing member is a first guide rail arranged parallel to the first rotation axis, and the second fixing member is a second guide rail arranged parallel to the first rotation axis; the telescopic assembly includes two first sliders slidably arranged on the first guide rail, two second sliders slidably arranged on the second guide rail, and two first link rods cross-hinged, one end of one of the two first link rods is respectively hinged to one of the two first sliders and one of the two second sliders, and the other end of the other of the two first link rods is respectively hinged to the other of the two first sliders and the other of the two second sliders; wherein, the hinge axis between the two first link rods, the hinge axis between the first link rod and the first slider, and the hinge axis between the first link rod and the second slider are all parallel to each other and perpendicular to the plane where the first guide rail and the second guide rail are located; wherein, the two cross-hinged first link rods are in a scissor shape.

2. The watch band according to claim 1, characterized in that, the telescopic assembly further includes a driving member for driving the two first sliders to approach or move away from each other, so that the two first link rods rotate relative to each other, thereby driving the two second sliders to approach or move away from each other, and causing the second guide rail to move away from or approach the first guide rail.

3. The watch band according to claim 2, characterized in that, the driving member includes: a rotary motor; a rotary screw connected to the output end of the rotary motor; a torsion gear meshing with the rotary screw; a first connecting member with two ends respectively hinged to the torsion gear and one of the two first sliders; a second connecting member with two ends respectively hinged to the torsion gear and the other of the two first sliders; When the rotary motor drives the rotary screw to rotate in the first direction around a rotation axis parallel to the first rotation axis, the torsion gear is driven to perform a first torsion around a rotation axis parallel to the hinge axis between the two first linkages, and then the two first sliders are driven to approach each other through the first connecting member and the second connecting member; When the rotary motor drives the rotary screw to rotate in the second direction around a rotation axis parallel to the first rotation axis, the torsion gear is driven to perform a second torsion around a rotation axis parallel to the hinge axis between the two first linkages, and then the two first sliders are driven to move away from each other through the first connecting member and the second connecting member.

4. The watch band according to claim 1, wherein, the watch band includes a third joint rotatably connected to the second joint, and the third joint rotates relative to the second joint around a second rotation axis; wherein the second rotation axis is parallel to the first rotation axis.

5. The watch band according to claim 4, wherein, the driving assembly includes a third guide rail disposed on the main surface of the third joint and parallel to the second rotation axis, two third sliders slidably disposed on the third guide rail, and two second linkages cross-hinged, one end of one of the two second linkages is respectively hinged to one of the two second sliders and one of the two third sliders, and the other end of the other of the two second linkages is respectively hinged to the other of the two second sliders and the other of the two third sliders.

6. The watch band according to claim 5, wherein, the watch band further includes a sensor disposed on the third joint, the sensor is used to detect the pressure information experienced by the third joint, and control the driving assembly to drive one of the first joint and the second joint to rotate towards or away from the main surface of the other according to the pressure information.

7. The watch band according to claim 1, wherein, a first abutting portion is disposed on the main surface of the first joint, and a second abutting portion corresponding to the first abutting portion is disposed on the main surface of the second joint. When one of the first joint and the second joint rotates towards the main surface of the other, the first abutting portion and the second abutting portion approach or abut against each other to limit the rotation amplitude of the first joint relative to the second joint.

8. The watch band according to claim 7, wherein, the first abutting portion includes a first accommodating groove, the second abutting portion includes a second accommodating groove, and at least part of the driving assembly is located in the first accommodating groove and the second accommodating groove.

9. The watch band according to claim 8, wherein, the first abutting portion includes two first abutting strips disposed at intervals, and the two first abutting strips cooperate to form the first accommodating groove, and two ends of the first guide rail respectively abut against the two first abutting strips; the second abutting portion includes two second abutting strips disposed at intervals, and the two second abutting strips cooperate to form the second accommodating groove, and two ends of the second guide rail respectively abut against the two second abutting strips.

10. The watch band according to claim 1, wherein, both the first joint and the second joint are arc-shaped joints, and the main surfaces of the first joint and the second joint are both inner curved surfaces.

11. A wearable device, wherein, the wearable device includes a main body unit and the watch band according to any one of claims 1-10, and the two watch bands are respectively arranged at both ends of the main body unit.

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