Watchband connecting structure, watchband and wearable device

Abstract

The invention provides a watchband connecting structure, a watchband and wearable equipment. Relates to the technical field of electronic equipment. The watchband comprises a band body and a watchband connecting structure connected with the band body, the watchband connecting structure comprises a watch buckle, a rack and a pressing piece, the watch buckle is arranged on the band body, the rack is arranged on the watch buckle, the rack can move in the extending direction of the band body and is fixedly connected with the band body, the pressing piece is arranged on the watch buckle, and the pressing piece is provided with a clamping structure matched with the rack. The pressing piece can move in the direction intersecting with the extending direction of the belt body so that the clamping structure can enter and exit from the tooth groove of the rack. The rack is used for driving the belt body to move, so that the belt body can move by the width of one tooth groove or multiple tooth grooves, and fine adjustment of the length of the watchband is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to a wearable device, a watch strap that can be used in the wearable device, and a watch strap connection structure that can be used in the watch strap. Background Art

[0002] Wearable devices generally refer to miniature electronic devices that can be worn on the body for activities, including smart watches and smart bracelets. Smart watches and smart bracelets can be used independently or as portable accessories for mobile terminals.

[0003] Currently, most wearable devices have multiple holes on the strap, and the wearer can adjust the strap length through the holes. However, due to the limitation of the hole distance, the strap is often worn too loose or too tight, and cannot be accurately adapted to the wrist, and cannot achieve the best wearing experience. Summary of the invention

[0004] The present application provides a wearable device, a watch strap that can be used in the wearable device, and a watch strap connection structure that can be used in the watch strap. The purpose is to provide a structure that can fine-tune the length of the watch strap to accurately fit the wrist.

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

[0006] In a first aspect, the present application provides a watch strap that can be used in a wearable device, such as a watch.

[0007] The watch strap provided by the present application includes: a first strap body and a watch strap connection structure connected to the first strap body; the watch strap connection structure includes a buckle, a rack and a pressing piece, the buckle is arranged on the first strap body, the rack is arranged on the buckle, the rack can move along the extension direction of the first strap body, and the rack is fixedly connected to the first strap body, the pressing piece is arranged on the buckle, the pressing piece has a clamping structure matching with the rack, the pressing piece can move along the direction intersecting with the extension direction of the first strap body so that the clamping structure enters and exits the tooth groove of the rack.

[0008] In the watch strap provided by the present application, for example, when the length of the watch strap needs to be shortened to achieve a tight wear, the strap body can be pushed toward the direction of the buckle. Since the rack and the strap body are fixedly connected, and the rack can move along the extension direction of the strap body, the strap body and the rack fixedly connected together will move under the action of the thrust. For example, under the thrust, the width of a tooth groove or the width of more tooth grooves can be moved as needed to shorten the length of the watch strap. For another example, when the length of the watch strap needs to be extended to achieve a loose wear, the pressing piece can be pressed so that the clamping structure on the pressing piece is disengaged from the tooth groove of the rack, and the connected rack and strap body move in the direction away from the buckle to extend the length of the watch strap, thereby achieving fine-tuning of the length of the watch strap.

[0009] In one achievable manner, the strap also includes a first elastic member; when the rack and the first strap body move along the first direction, the first elastic member is used to give the first strap body an elastic force along the second direction; the first direction is opposite to the second direction, and both the first direction and the second direction are parallel to the extension direction of the first strap body.

[0010] By using the first elastic member, the automatic rebound of the watch strap can be achieved. For example, after the watch strap is shortened, the watch strap can be automatically extended by pressing the pressing member; or, after the watch strap is extended, the watch strap can be automatically shortened by pressing the pressing member.

[0011] In one achievable manner, one end of the first elastic member is connected to the buckle, and the other end is connected to the rack; the first direction is the direction from the first strap body to the rack, and the second direction is the direction from the rack to the first strap body.

[0012] When the first strap body is pushed in the direction of the buckle (such as the first direction mentioned above) to shorten the length of the strap, the first elastic member is compressed under the action of the thrust, generating a thrust toward the first strap body (such as the second direction mentioned above); then, when the pressing member is pressed to extend the length of the strap, the snap-fit ​​structure on the pressing member disengages from the tooth groove of the rack, and the rack and the first strap body automatically rebound under the action of the thrust of the first elastic member along the second direction, thereby achieving automatic extension of the strap without the user having to stretch the first strap body, thereby improving the user experience.

[0013] In one achievable manner, a mounting groove is provided on the rack, the mounting groove having a first end and a second end, the first end being farther away from the first strap body than the second end, and the first elastic member is located in the mounting groove; an abutment member is provided on the buckle, and the abutment member is located at the first end of the mounting groove; one end of the first elastic member abuts against the abutment member, and the other end abuts against the rack.

[0014] This can make the entire structure more compact and reduce the size of the entire structure.

[0015] In one achievable manner, the mounting groove includes a first section and a second section that are connected, the groove width of the first section is greater than the groove width of the second section, part of the first elastic member is located in the first section, and the other part is located in the second section.

[0016] The installation groove for setting the elastic part is set to a first section with a wide groove and a second section with a narrow groove. The second section with a narrow groove can constrain the elastic part so that the elastic part can deform along its axial direction. The first section with a wide groove can be loosely matched with the elastic part, that is, the elastic part does not contact the wall of the groove, so that the elastic part can be freely extended and retracted.

[0017] In one achievable manner, the second section of the mounting groove is closer to the first belt body than the first section.

[0018] In one practicable manner, the watch strap further includes: a first limiting structure, the first limiting structure being used to limit the distance that the rack moves along the extending direction of the first strap body.

[0019] In one achievable manner, the first limiting structure includes: a first limiting groove and a first limiting column arranged in the first limiting groove; the extension direction of the first limiting groove is parallel to the extension direction of the first belt body; one of the first limiting groove and the first limiting column is arranged on the rack, and the other is arranged on the buckle.

[0020] The first limiting structure can be used to limit the moving distance of the rack, so as to prevent the rack from having a large movement when the user pushes the belt body, thereby affecting the user experience.

[0021] In one achievable manner, the watch strap further includes a second elastic member; one end of the second elastic member is connected to the pressing member, and the other end is connected to the buckle; the second elastic member is used to apply elastic force to the snap-fit ​​structure in the direction of the rack.

[0022] The elastic force of the clamping structure toward the rack is given by an elastic member, so that the adhesion between the clamping structure and the rack can be increased. Regardless of whether the watch strap is worn tightly or loosely, the clamping structure of the pressing member will not separate from the tooth groove of the rack, thereby improving the user experience.

[0023] In one practicable manner, the watch strap further includes: a second limiting structure, the second limiting structure is used to limit the distance that the pressing member moves along a third direction, and the third direction intersects with the extension direction of the first strap body.

[0024] In one achievable manner, the second limiting structure includes: a second limiting groove and a second limiting column arranged in the second limiting groove; the extension direction of the second limiting groove is perpendicular to the extension direction of the first belt body; one of the second limiting groove and the second limiting column is arranged on the pressing piece, and the other is arranged on the clasp.

[0025] The second limiting structure can be used to limit the moving distance of the pressing member, so as to prevent the pressing member from having a large movement amount and being far away from the rack when the user presses the pressing member, thereby affecting the user experience.

[0026] In one achievable manner, the teeth on the rack include a first row of teeth and a second row of teeth, the first row of teeth and the second row of teeth are arranged on opposite sides of the rack, and the first row of teeth and the second row of teeth are parallel to the extension direction of the first strap body; the pressing piece includes a first pressing piece and a second pressing piece, the first pressing piece and the second pressing piece are arranged on opposite sides of the buckle; any one of the first pressing piece and the second pressing piece includes: a first part and a second part connected to the first part, the first part is located outside the buckle, the second part extends into the buckle, and the snap-fit ​​structure is arranged at the end of the second part away from the first part; the snap-fit ​​structure of the first pressing piece cooperates with the first row of teeth, and the snap-fit ​​structure of the second pressing piece cooperates with the second row of teeth.

[0027] The symmetrically arranged teeth and pressing parts not only facilitate operation, but also improve the stability of the extension and retraction of the entire device strap.

[0028] In one achievable manner, the first row of tooth grooves is closer to the first part of the second pressing member than the second row of tooth grooves; the second row of tooth grooves is closer to the first part of the first pressing member than the first row of tooth grooves; the second part of the first pressing member spans over the second row of tooth grooves so that the snap-on structure of the first pressing member cooperates with the first row of tooth grooves; the second part of the second pressing member spans over the first row of tooth grooves so that the snap-on structure of the second pressing member cooperates with the second row of tooth grooves.

[0029] In this way, the clamping structure of the first pressing piece can apply the extrusion force of the first row of teeth toward the outside of the buckle, and the clamping structure of the second pressing piece can apply the extrusion force of the second row of teeth toward the outside of the buckle, thereby improving the stability and reliability of the device when the pressing piece is not pressed.

[0030] In one practicable manner, a first slide groove is provided on the clasp, and an extension direction of the first slide groove is parallel to an extension direction of the first strap body, and the first strap body can slide along the first slide groove.

[0031] By arranging a slide groove on the watch buckle, the watch strap and the rack can slide relative to the watch buckle, thereby realizing the extension and retraction of the watch strap length.

[0032] In one achievable manner, the watch strap further includes a first plate and a second plate, one end of the first plate being rotatably connected to the buckle, and the other end being rotatably connected to the second plate, the second plate being used to connect to the second strap body of the watch strap, and the second plate being connected to the buckle.

[0033] In the example, by rotatably connecting the first plate to the buckle, the strap body can be rotated relative to the buckle, which is convenient for wearing the device.

[0034] In one achievable manner, the watch strap further includes a first plate and a second plate, one end of the first plate is fixedly connected to the buckle, and the other end is rotatably connected to the second plate, the second plate is used to connect to the second strap body of the watch strap, and the second plate is connected to the buckle; at least one of the first plate and the second plate is a telescopic plate; the connection position between the second plate and the buckle includes a first gear and a second gear, and when the telescopic plate is extended and retracted, the connection position between the second plate and the buckle can be switched between the first gear and the second gear.

[0035] In the example given in the present application, the extension and retraction of the telescopic plate can be utilized to switch the connection position between the second plate and the buckle between at least two gears. For example, when the telescopic plate is extended, the connection position between the second plate and the buckle is in one gear. When it is in this gear, the radial size of the ring formed by the strap can be reduced to achieve a tight wear. Conversely, when the telescopic plate is shortened, the connection position between the second plate and the buckle is in another gear. When it is in this gear, the radial size of the ring formed by the strap can be increased to achieve a loose wear.

[0036] In one achievable manner, the telescopic plate includes a first telescopic section and a second telescopic section; the strap also includes a third elastic member, one end of the third elastic member is connected to the first telescopic section, and the other end is connected to the second telescopic section, and the third elastic member is used to give the second telescopic section and the first telescopic section an elastic force for relative extension; when the third elastic member is in a first state, the connection position between the second plate and the buckle is in a first position; when the third elastic member is in a second state, the connection position between the second plate and the buckle is in a second position.

[0037] In the example of the present application, the elastic force of the elastic member can be used to switch the connection position between the second plate and the buckle between the first gear and the second gear.

[0038] In one achievable manner, the watch strap further includes: a second slide groove and a guide post, the second slide groove being provided on the second telescopic section, the extension direction of the second slide groove being parallel to the telescopic direction of the second telescopic section; the guide post being fixedly connected to the first telescopic section, and the guide post being located in the second slide groove and being able to slide along the extension direction of the second slide groove; a third elastic member being arranged in the second slide groove, one end of the third elastic member being in contact with the guide post, and the other end being in contact with the second telescopic section.

[0039] The cooperation between the slide groove and the guide column can constrain the telescopic direction of the elastic member, thereby limiting the telescopic direction of the first telescopic section and the second telescopic section, and improving the reliability of the device.

[0040] In one achievable manner, the first plate includes a first telescopic section and a second telescopic section, the first telescopic section is fixedly connected to the buckle, and the second telescopic section is rotatably connected to the second plate.

[0041] In this embodiment, the first plate fixedly connected to the buckle is designed as a telescopic plate, which can make the gear switching more stable and reliable.

[0042] In one achievable method, the second slide groove has a first end and a second end, the first end of the second slide groove is farther away from the connection position between the second telescopic section and the second plate than the second end; the first gear is farther away from the connection position between the second telescopic section and the second plate than the second gear; when the guide column is located at the first end of the second slide groove, the connection position between the second plate and the clasp is in the first gear; under the first force, when the guide column slides from the first end to the second end, the connection position between the second plate and the clasp can be switched from the first gear to the second gear, and the first force faces the clasp.

[0043] When the length of the strap is extended, the buckle can be pushed to increase the radial size of the ring structure formed by the strap.

[0044] In one achievable manner, the second slide groove has a first end and a second end, the first end of the second slide groove is farther away from the connection position between the second telescopic section and the second plate than the second end; the first gear is farther away from the connection position between the second telescopic section and the second plate than the second gear; when the guide column is located at the second end of the second slide groove, the connection position between the second plate and the clasp is in the second gear; under the second force, when the guide column slides from the second end toward the first end, the connection position between the second plate and the clasp is in a position that can switch from the second gear to the first gear, and the first force is away from the clasp.

[0045] When shortening the length of the strap, the buckle can be pulled to reduce the radial size of the ring structure formed by the strap.

[0046] In one achievable manner, a cavity is defined in the first telescopic section, and at least a portion of the second telescopic section extends into the cavity; and the third elastic member is disposed in the cavity.

[0047] The first telescopic section and the second telescopic section adopt a sleeve-type installation structure, and the elastic member is hidden inside the sleeve, thereby improving the appearance of the device.

[0048] In one achievable manner, the watch strap further includes: a third limiting structure, the third limiting structure being used to limit the amount of expansion and contraction of the second expansion section relative to the first expansion section.

[0049] In one achievable manner, the third limiting structure includes: a third limiting groove and a third limiting column arranged in the third limiting groove; the extension direction of the third limiting groove is parallel to the extension direction of the second telescopic section; one of the third limiting groove and the third limiting column is arranged on the first telescopic section, and the other is arranged on the second telescopic section. The limiting structure is simple.

[0050] In one achievable manner, the watch strap further includes: a buckle and a slot, one of the buckle and the slot is arranged on the buckle, and the other is arranged on the second plate; the slot includes a first slot and a second slot, the first slot and the second slot are arranged along the telescopic direction of the second telescopic section, and the first slot is farther away from the connection position between the second telescopic section and the second plate than the second slot; when the buckle is located in the first slot, the connection position between the second plate and the buckle is in the first position, and when the buckle is located in the second slot, the connection position between the second plate and the buckle is in the second position.

[0051] By cooperating with the buckle and the slot, switching between multiple gears can be achieved.

[0052] In one achievable manner, the first strap body includes a first section and a second section; a third slide groove is provided on the clasp, the extension direction of the third slide groove is parallel to the extension direction of the first strap body, and the first section can slide along the third slide groove; the first section is rotatably connected to the second section.

[0053] In this embodiment, since the first plate is fixedly connected to the buckle, the strap body also needs to be slidably connected to the buckle, so that the strap body can include a first section and a second section, the first section is slidably connected to the buckle, and the second section is rotationally connected to the first section.

[0054] In a second aspect, the present application provides a watchband connection structure, which is used to connect a first strap body.

[0055] The strap connection structure includes: a buckle, a rack and a pressing piece; the rack is arranged on the buckle, the rack can move along the extension direction of the first strap body, and the rack is used to be fixedly connected to the first strap body; the pressing piece is arranged on the buckle, and the pressing piece has a snap-fit ​​structure that cooperates with the rack, and the pressing piece can move along the direction intersecting the extension direction of the first strap body so that the snap-fit ​​structure enters and exits the tooth groove of the rack.

[0056] The watch strap connection structure provided in the present application is installed on the watch strap. By pushing the strap body, the rack will drive the strap body to move in one direction to shorten the length of the watch strap. Alternatively, the pressing piece can be pressed to disengage the snap-on structure on the pressing piece from the tooth groove, and the rack and the strap body move in opposite directions to extend the length of the watch strap, thereby achieving fine-tuning of the length of the watch strap.

[0057] In one achievable manner, the strap connection structure also includes a first elastic member; when the rack moves along the first direction, the first elastic member is used to give the rack an elastic force along the second direction; the first direction is opposite to the second direction, and both the first direction and the second direction are parallel to the extension direction of the first strap body.

[0058] In one achievable manner, one end of the first elastic member is connected to the buckle, and the other end is connected to the rack; the first direction is the direction from the first strap body to the rack, and the second direction is the direction from the rack to the first strap body.

[0059] By using the first elastic member, the automatic rebound of the watch strap can be achieved. For example, after the watch strap is shortened, the watch strap can be automatically extended by pressing the pressing member; or, after the watch strap is extended, the watch strap can be automatically shortened by pressing the pressing member.

[0060] In one achievable manner, a mounting groove is provided on the rack, the mounting groove having a first end and a second end, the first end of the mounting groove being farther away from the first strap body than the second end, and the first elastic member is located in the mounting groove; an abutment member is provided on the buckle, and the abutment member is located at the first end of the mounting groove; one end of the first elastic member abuts against the abutment member, and the other end abuts against the rack.

[0061] In one achievable manner, the mounting groove includes a first section and a second section that are connected, the groove width of the first section is greater than the groove width of the second section, part of the first elastic member is located in the first section, and the other part is located in the second section.

[0062] The installation groove for setting the elastic part is set to a first section with a wide groove and a second section with a narrow groove. The second section with a narrow groove can constrain the elastic part so that the elastic part can deform along its axial direction. The first section with a wide groove can be loosely matched with the elastic part, that is, the elastic part does not contact the wall of the groove, so that the elastic part can be freely extended and retracted.

[0063] In one achievable manner, the watchband connection structure further includes: a first limiting structure; the first limiting structure is used to limit the distance that the rack moves along the extension direction of the first strap body.

[0064] In one achievable manner, the first limiting structure includes: a first limiting groove and a first limiting column arranged in the first limiting groove; the extension direction of the first limiting groove is parallel to the extension direction of the first belt body; one of the first limiting groove and the first limiting column is arranged on the rack, and the other is arranged on the buckle.

[0065] The first limiting structure can be used to limit the moving distance of the rack, so as to prevent the rack from having a large movement when the user pushes the belt body, thereby affecting the user experience.

[0066] In one achievable manner, the strap connection structure also includes a second elastic member; one end of the second elastic member is connected to the pressing member, and the other end is connected to the buckle; the second elastic member is used to give the snap-fit ​​structure an elastic force in the direction of the rack.

[0067] The elastic force of the clamping structure toward the rack is given by an elastic member, so that the adhesion between the clamping structure and the rack can be increased. Regardless of whether the watch strap is worn tightly or loosely, the clamping structure of the pressing member will not separate from the tooth groove of the rack, thereby improving the user experience.

[0068] In one achievable manner, the watchband connection structure further includes: a second limiting structure; the second limiting structure is used to limit the distance that the pressing member moves along a third direction, and the third direction intersects with the extension direction of the first strap body.

[0069] In one achievable manner, the second limiting structure includes: a second limiting groove and a second limiting column arranged in the second limiting groove; the extension direction of the second limiting groove is perpendicular to the extension direction of the first belt body; one of the second limiting groove and the second limiting column is arranged on the pressing piece, and the other is arranged on the clasp.

[0070] The second limiting structure can be used to limit the moving distance of the pressing member, so as to prevent the pressing member from having a large movement amount and being far away from the rack when the user presses the pressing member, thereby affecting the user experience.

[0071] In one achievable manner, the teeth on the rack include a first row of teeth and a second row of teeth, the first row of teeth and the second row of teeth are arranged on opposite sides of the rack, and the first row of teeth and the second row of teeth are parallel to the extension direction of the first strap body; the pressing piece includes a first pressing piece and a second pressing piece, the first pressing piece and the second pressing piece are arranged on opposite sides of the buckle; any one of the first pressing piece and the second pressing piece includes: a first part and a second part connected to the first part, the first part is located outside the buckle, the second part extends into the buckle, and the snap-fit ​​structure is arranged at the end of the second part away from the first part; the snap-fit ​​structure of the first pressing piece cooperates with the first row of teeth, and the snap-fit ​​structure of the second pressing piece cooperates with the second row of teeth.

[0072] The symmetrically arranged teeth and pressing parts not only facilitate operation, but also improve the stability of the extension and retraction of the entire device strap.

[0073] In one achievable manner, the first row of tooth grooves is closer to the first part of the second pressing member than the second row of tooth grooves; the second row of tooth grooves is closer to the first part of the first pressing member than the first row of tooth grooves; the second part of the first pressing member spans over the second row of tooth grooves so that the snap-on structure of the first pressing member cooperates with the first row of tooth grooves; the second part of the second pressing member spans over the first row of tooth grooves so that the snap-on structure of the second pressing member cooperates with the second row of tooth grooves.

[0074] In this way, the clamping structure of the first pressing piece can apply the extrusion force of the first row of teeth toward the outside of the buckle, and the clamping structure of the second pressing piece can apply the extrusion force of the second row of teeth toward the outside of the buckle, thereby improving the stability and reliability of the device when the pressing piece is not pressed.

[0075] In one practicable manner, a first slide groove is provided on the clasp, and an extension direction of the first slide groove is parallel to an extension direction of the first strap body, and the first strap body can slide along the first slide groove.

[0076] By arranging a slide groove on the watch buckle, the watch strap and the rack can slide relative to the watch buckle, thereby realizing the extension and retraction of the watch strap length.

[0077] In one achievable manner, the strap connection structure also includes a first plate and a second plate, one end of the first plate is rotatably connected to the buckle, and the other end is rotatably connected to the second plate, the second plate is used to connect to the second strap body of the strap, and the second plate is connected to the buckle.

[0078] In the example, by rotatably connecting the first plate to the buckle, the strap body can be rotated relative to the buckle, which is convenient for wearing the device.

[0079] In a third aspect, the present application provides a watch strap, which may include: a first strap body and a strap connection structure connected to the first strap body; the strap connection structure includes a buckle, a first plate and a second plate; the buckle is arranged on the first strap body, one end of the first plate is fixedly connected to the buckle, and the other end is rotatably connected to the second plate, the second plate is used to connect to the second strap body of the strap, and the second plate is connected to the buckle; at least one of the first plate and the second plate is a telescopic plate; the connection position of the second plate and the buckle includes a first gear and a second gear, and when the telescopic plate is extended and retracted, the connection position of the second plate and the buckle can be switched between the first gear and the second gear.

[0080] In the watch strap provided by the present application, since at least one of the first plate and the second plate is retractable, when the first plate and / or the second plate is retracted or extended, the connection position between the second plate and the buckle can be switched between different gears. In this way, by utilizing the retractable plate and the gear switching structure, the radial dimension of the closed loop formed by the first strap body and the second strap body can be lengthened or shortened, thereby achieving fine-tuning of the strap length.

[0081] In one achievable manner, the telescopic plate includes: a first telescopic section and a second telescopic section; the strap also includes an elastic member, one end of the elastic member is connected to the first telescopic section, and the other end is connected to the second telescopic section, and the elastic member is used to give elastic force to the second telescopic section and the first telescopic section to relative stretch; when the elastic member is in a first state, the connection position between the second plate and the buckle is in a first position; when the elastic member is in a second state, the connection position between the second plate and the buckle is in a second position.

[0082] In the example of the present application, the elastic force of the elastic member is used to achieve the expansion and contraction between the first expansion section and the second expansion section, so that the connection position between the second plate and the buckle is switched between the first gear and the second gear.

[0083] In one achievable manner, the watch strap further includes: a slide groove and a guide post, the slide groove being provided on the second telescopic section, the extension direction of the second slide groove being parallel to the extension direction of the second telescopic section; the guide post being fixedly connected to the first telescopic section, and the guide post being located in the slide groove and being able to slide along the extension direction of the slide groove; an elastic member being arranged in the slide groove, one end of the elastic member being in contact with the guide post, and the other end being in contact with the second telescopic section.

[0084] The cooperation between the slide groove and the guide column can constrain the telescopic direction of the elastic member, thereby limiting the telescopic direction of the first telescopic section and the second telescopic section, and improving the reliability of the device.

[0085] In one achievable manner, the first plate includes a first telescopic section and a second telescopic section, the first telescopic section is fixedly connected to the buckle, and the second telescopic section is rotatably connected to the second plate.

[0086] In this embodiment, the first plate fixedly connected to the buckle is designed as a telescopic plate, which can make the gear switching more stable and reliable.

[0087] In one achievable method, the slide slot has a first end and a second end, the first end of the slide slot is farther away from the connection position between the second telescopic section and the second plate than the second end; the first gear is farther away from the connection position between the second telescopic section and the second plate than the second gear; when the guide column is located at the first end of the slide slot, the connection position between the second plate and the clasp is in the first gear; under the first force, when the guide column slides from the first end to the second end, the connection position between the second plate and the clasp can be switched from the first gear to the second gear, and the first force faces the clasp.

[0088] In one achievable manner, the slide groove has a first end and a second end, the first end of the slide groove is farther away from the connection position between the second telescopic section and the second plate than the second end; the first gear is farther away from the connection position between the second telescopic section and the second plate than the second gear; when the guide column is located at the second end of the slide groove, the connection position between the second plate and the clasp is in the second gear; under the second force, when the guide column slides from the second end toward the first end, the connection position between the second plate and the clasp is in a position that can be switched from the second gear to the first gear, and the first force is away from the clasp.

[0089] In one achievable manner, a cavity is provided in the first telescopic section, and at least a portion of the second telescopic section extends into the cavity; and the elastic member is disposed in the cavity.

[0090] The first telescopic section and the second telescopic section adopt a sleeve-type installation structure, and the elastic member is hidden inside the sleeve, thereby improving the appearance of the device.

[0091] In one achievable manner, the watch strap further includes: a third limiting structure, the third limiting structure being used to limit the amount of expansion and contraction of the second expansion section relative to the first expansion section.

[0092] In one achievable manner, the third limiting structure includes: a third limiting groove and a third limiting column arranged in the third limiting groove; the extension direction of the third limiting groove is parallel to the extension direction of the second telescopic section; one of the third limiting groove and the third limiting column is arranged on the first telescopic section, and the other is arranged on the second telescopic section. The limiting structure is simple.

[0093] In one achievable manner, the watch strap further includes: a buckle and a slot, one of the buckle and the slot is arranged on the buckle, and the other is arranged on the second plate; the slot includes a first slot and a second slot, the first slot and the second slot are arranged along the telescopic direction of the second telescopic section, and the first slot is farther away from the connection position between the second telescopic section and the second plate than the second slot; when the buckle is located in the first slot, the connection position between the second plate and the buckle is in the first position, and when the buckle is located in the second slot, the connection position between the second plate and the buckle is in the second position.

[0094] By cooperating with the buckle and the slot, switching between multiple gears can be achieved.

[0095] In one possible implementation, the first strap body is rotatably connected to the buckle.

[0096] In a fourth aspect, the present application provides a watchband connecting structure, which is used to connect a first strap body and a second strap body of the watchband, and the watchband connecting structure includes: a buckle, a first plate and a second plate; one end of the first plate is fixedly connected to the buckle, and the other end is rotatably connected to the second plate, the second plate is connected to the buckle, the buckle is used to connect to the first strap body, and the second plate is used to connect to the second strap body; at least one of the first plate and the second plate is a telescopic plate; the connection position of the second plate and the buckle includes a first gear and a second gear, and when the telescopic plate is extended and retracted, the connection position of the second plate and the buckle can be switched between the first gear and the second gear.

[0097] In the watch strap connection structure provided by the present application, since at least one of the first plate and the second plate is retractable, when the first plate and / or the second plate is retracted or extended, the connection position of the second plate and the buckle can be switched between different gears. In this way, by utilizing the retractable plate and the gear switching structure, the radial dimension of the closed loop formed by the first strap body and the second strap body can be lengthened or shortened, thereby achieving fine-tuning of the strap length.

[0098] In one achievable manner, the telescopic plate includes: a first telescopic section and a second telescopic section; the strap also includes an elastic member, one end of the elastic member is connected to the first telescopic section, and the other end is connected to the second telescopic section, and the elastic member is used to give elastic force to the second telescopic section and the first telescopic section to relative stretch; when the elastic member is in a first state, the connection position between the second plate and the buckle is in a first position; when the elastic member is in a second state, the connection position between the second plate and the buckle is in a second position.

[0099] In the example of the present application, the elastic force of the elastic member is used to achieve the expansion and contraction between the first expansion section and the second expansion section, so that the connection position between the second plate and the buckle is switched between the first gear and the second gear.

[0100] In one achievable manner, the watch strap further includes: a slide groove and a guide post, the slide groove being provided on the second telescopic section, the extension direction of the second slide groove being parallel to the extension direction of the second telescopic section; the guide post being fixedly connected to the first telescopic section, and the guide post being located in the slide groove and being able to slide along the extension direction of the slide groove; an elastic member being arranged in the slide groove, one end of the elastic member being in contact with the guide post, and the other end being in contact with the second telescopic section.

[0101] The cooperation between the slide groove and the guide column can constrain the telescopic direction of the elastic member, thereby limiting the telescopic direction of the first telescopic section and the second telescopic section, and improving the reliability of the device.

[0102] In one achievable manner, the first plate includes a first telescopic section and a second telescopic section, the first telescopic section is fixedly connected to the buckle, and the second telescopic section is rotatably connected to the second plate.

[0103] In this embodiment, the first plate fixedly connected to the buckle is designed as a telescopic plate, which can make the gear switching more stable and reliable.

[0104] In one achievable method, the slide slot has a first end and a second end, the first end of the slide slot is farther away from the connection position between the second telescopic section and the second plate than the second end; the first gear is farther away from the connection position between the second telescopic section and the second plate than the second gear; when the guide column is located at the first end of the slide slot, the connection position between the second plate and the clasp is in the first gear; under the first force, when the guide column slides from the first end to the second end, the connection position between the second plate and the clasp can be switched from the first gear to the second gear, and the first force faces the clasp.

[0105] In one achievable manner, the slide groove has a first end and a second end, the first end of the slide groove is farther away from the connection position between the second telescopic section and the second plate than the second end; the first gear is farther away from the connection position between the second telescopic section and the second plate than the second gear; when the guide column is located at the second end of the slide groove, the connection position between the second plate and the clasp is in the second gear; under the second force, when the guide column slides from the second end toward the first end, the connection position between the second plate and the clasp is in a position that can be switched from the second gear to the first gear, and the first force is away from the clasp.

[0106] In one achievable manner, a cavity is provided in the first telescopic section, and at least a portion of the second telescopic section extends into the cavity; and the elastic member is disposed in the cavity.

[0107] The first telescopic section and the second telescopic section adopt a sleeve-type installation structure, and the elastic member is hidden inside the sleeve, thereby improving the appearance of the device.

[0108] In one achievable manner, the watch strap further includes: a third limiting structure, the third limiting structure being used to limit the amount of expansion and contraction of the second expansion section relative to the first expansion section.

[0109] In one achievable manner, the third limiting structure includes: a third limiting groove and a third limiting column arranged in the third limiting groove; the extension direction of the third limiting groove is parallel to the extension direction of the second telescopic section; one of the third limiting groove and the third limiting column is arranged on the first telescopic section, and the other is arranged on the second telescopic section. The limiting structure is simple.

[0110] In one achievable manner, the watch strap further includes: a buckle and a slot, one of the buckle and the slot is arranged on the buckle, and the other is arranged on the second plate; the slot includes a first slot and a second slot, the first slot and the second slot are arranged along the telescopic direction of the second telescopic section, and the first slot is farther away from the connection position between the second telescopic section and the second plate than the second slot; when the buckle is located in the first slot, the connection position between the second plate and the buckle is in the first position, and when the buckle is located in the second slot, the connection position between the second plate and the buckle is in the second position.

[0111] By cooperating with the buckle and the slot, switching between multiple gears can be achieved.

[0112] In a fifth aspect, the present application provides a wearable device, which may be a watch or a bracelet.

[0113] The wearable device may include: a watch face and a watch strap in any of the above implementations, wherein the watch strap is connected to the watch face.

[0114] Since the wearable device provided in the present application includes a watch strap in any of the above-mentioned methods, the connection structure of the watch strap has a structure that can fine-tune the length of the watch strap. In this way, when the wearable device is worn, the length of the watch strap can be fine-adjusted according to the thickness of the wrist to accurately fit the wrist and improve the user experience. Or, when the device has a physiological monitoring function, it can also improve the monitoring accuracy and improve the working performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0115] Figure 1 A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0116] Figure 2 A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0117] Figure 3 for Figure 2Exploded diagram of some structures;

[0118] Figure 4 for Figure 3 A-direction view;

[0119] Figure 5 A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0120] Figure 6 A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0121] Figure 7 A schematic diagram of the telescopic structure of a wearable device provided in an embodiment of the present application;

[0122] Figure 8 A schematic diagram of the telescopic structure of a wearable device provided in an embodiment of the present application;

[0123] Fig. 9 A schematic diagram of the telescopic structure of a wearable device provided in an embodiment of the present application;

[0124] Fig.10 A schematic diagram of a partial structure of a wearable device provided in an embodiment of the present application;

[0125] Fig.11 A schematic diagram of the structure of a pressing member provided in an embodiment of the present application;

[0126] Fig.12 An exploded schematic diagram for showing a pressing member provided in an embodiment of the present application;

[0127] Fig.13 A schematic diagram of the structure of a pressing member provided in an embodiment of the present application;

[0128] Fig.14 A structural schematic diagram for illustrating the connection relationship between the clamping structure of the pressing member and the rack provided in an embodiment of the present application;

[0129] Fig.15 A schematic diagram of a structure for showing a mounting groove for setting an elastic member provided in an embodiment of the present application;

[0130] Fig.16 A structural schematic diagram for displaying a limiting structure provided in an embodiment of the present application;

[0131] Fig.17 A structural schematic diagram for displaying a limiting structure provided in an embodiment of the present application;

[0132] Fig.18A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0133] Fig.19 A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0134] Fig. 20 A partial structural diagram of a wearable device provided in an embodiment of the present application;

[0135] Fig.21 A structural schematic diagram for displaying a limiting structure provided in an embodiment of the present application;

[0136] Fig. 22 A schematic diagram of a partial structure of a wearable device provided in an embodiment of the present application;

[0137] Fig.23 A schematic diagram of a partial structure of a wearable device provided in an embodiment of the present application;

[0138] Fig.24 A schematic diagram of a partial structure of a wearable device provided in an embodiment of the present application;

[0139] Fig.25 A schematic diagram of an exploded view of a retractable plate of a wearable device provided in an embodiment of the present application;

[0140] Fig.26 A schematic diagram of the telescopic structure of a telescopic plate provided in an embodiment of the present application;

[0141] Fig. 27 A schematic diagram of the telescopic structure of a telescopic plate provided in an embodiment of the present application;

[0142] Fig.28 A schematic diagram of the telescopic principle and gear switching structure of a telescopic plate provided in an embodiment of the present application;

[0143] Fig.29 A schematic diagram of the telescopic principle and gear switching structure of a telescopic plate provided in an embodiment of the present application;

[0144] Fig.30 A schematic diagram of the telescopic principle and gear switching structure of a telescopic plate provided in an embodiment of the present application;

[0145] Fig.31 A schematic diagram of the telescopic principle and gear switching structure of a telescopic plate provided in an embodiment of the present application;

[0146] Fig.32 A schematic diagram of the exploded structure of a telescopic plate provided in an embodiment of the present application;

[0147] Fig.33 A schematic diagram of the exploded structure of a telescopic plate provided in an embodiment of the present application;

[0148] Fig.34 A schematic diagram of the exploded structure of a telescopic plate provided in an embodiment of the present application;

[0149] Fig.35 A structural schematic diagram of a partial structure of a wearable device provided in an embodiment of the present application.

[0150] Reference numerals:

[0151] 10-first belt body; 20-second belt body; 30-connecting structure; 101-hole; 10A-first belt body section; 10B-second belt body section; 10C-rotating shaft;

[0152] 301-clasp; 3011-first housing; 3012-second housing; 3013-slideway; 3014-perforation; 3015-limiting cavity; 3016-hole; 3017-counterbore; 3018-axis hole; 3019-buckle; 3020-structural part;

[0153] 302- rack; 3021- first row of tooth grooves; 3022- second row of tooth grooves;

[0154] 303-pressing member; 3031-first pressing member; 3032-second pressing member; 303A-first part; 303B-second part;

[0155] 304-clamping structure; 3041-first bonding surface; 3042-second bonding surface;

[0156] 305-tooth groove; 3051-first wall surface; 3052-second wall surface;

[0157] 306, 3061, 3062, 311 - elastic member;

[0158] 307, 3071, 3072-installation slot; 307A-first section; 307B-second section;

[0159] 308, 3081, 3082-abutment members;

[0160] 309, 310-limiting structure; 3091, 3101-limiting groove; 3092, 3102-limiting column;

[0161] 40-first plate;

[0162] 50-second board; 501-first card slot; 502-second card slot

[0163] 601, 602-rotating shaft;

[0164] 70- buckle; 701- slot; 702- buckle;

[0165] 80-fasteners;

[0166] 901-first telescopic section; 902-second telescopic section; 903-elastic member; 904-sliding groove; 905-guide column; 906-limiting groove; 907-limiting column

[0167] 901A-cover plate; 901B-base plate. DETAILED DESCRIPTION

[0168] The embodiment of the present application provides a wearable device, for example, the wearable device may be a smart bracelet or a smart watch. The wearable device may be worn on the wrist to realize functions such as time display, time recording, time reporting, message notification, motion detection, heart rate monitoring, and blood oxygen level detection.

[0169] Wearable devices mainly include a strap and a watch face. The strap is used to wrap around the user's wrist to enable the wearable device to be worn.

[0170] like Figure 1 , Figure 1 The structural diagram of a watch strap is shown as an example. The exemplary watch strap includes a first strap body 10 and a second strap body 20, and a dial is connected between the first strap body 10 and the second strap body 20. For example, the dial can be connected between the A end of the first strap body 10 and the B end of the second strap body 20. The first strap body 10 and the second strap body 20 can be connected by a connecting structure 30, so that the first strap body 10, the dial and the second strap body 20 form a closed loop to be wrapped around the wrist.

[0171] To fit the wrist, Figure 1 A plurality of holes 101 may be provided on the first strap body 10 and the second strap body 20, and the wearer may adjust the strap length through the plurality of holes according to the thickness of the wrist.

[0172] exist Figure 1 In the embodiment, the adjustment amount of the strap length is at least the distance between two adjacent holes 101. This may cause the strap to be worn too loosely or too tightly, and may not accurately fit the wrist, thereby reducing the user experience and even the performance of the wearable device. For example, when the wearable device has functions such as heart rate monitoring and blood oxygen level detection, the dial cannot be close to the skin due to being worn too loosely, thereby reducing the measurement accuracy.

[0173] 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 of the example of the present application includes a fine-tuning structure that can fine-tune the length of the strap, for example, Figure 1The adjustment amount of the fine-tuning structure can be one-half, one-third, one-quarter or one-fifth of the distance between two adjacent holes, or even smaller; or, the adjustment amount of the fine-tuning structure can be greater than one hole distance and less than two hole distances, for example, the adjustment amount can be equal to 3 / 2 hole distances. The structures that can be realized by the fine-tuning structure are shown below.

[0174] like Figure 2 , Figure 3 and Figure 4 , Figure 2 is a partial structural diagram of a wearable device provided in an embodiment of the present application, Figure 3 yes Figure 2 An exploded diagram of Figure 4 yes Figure 3 The A-direction view of the vehicle body is shown, and the pressing part is disassembled.

[0175] In the example of the present application, the connection structure provided between the first strap body 10 and the second strap body 20 includes a buckle 301. Figure 2 and Figure 3 In the embodiment, the buckle 301 is exemplarily disposed at the end of the first strap 10 .

[0176] like Figure 4 The connection structure further includes a rack 302 and a pressing piece 303. The clasp 301 serves as a carrier of the rack 302 and the pressing piece 303, that is, the rack 302 and the pressing piece 303 are arranged on the clasp 301.

[0177] The rack 302 is fixedly connected to the first strap 10. The rack 302 is movably arranged on the buckle 301, and the rack 302 can move along the extension direction of the first strap 10, such as Figure 4 Since the rack 302 is fixedly connected to the first belt body 10 , the rack 302 and the first belt body 10 can move along the extension direction L of the first belt body 10 .

[0178] See Figure 4 The pressing member 303 has a snap-fitting structure 304 that cooperates with the rack 302 . The pressing member 303 can move along a direction intersecting with the extension direction L of the first belt body 10 so that the snap-fitting structure 304 enters and exits the tooth groove 305 of the rack 302 .

[0179] For example, the pressing member 303 may be arranged along a direction perpendicular or nearly perpendicular to the extending direction L of the first belt body 10 (eg Figure 4 M direction) moves.

[0180] In some examples, such as Figure 5 , Figure 5 for Figure 4 As shown in the partial structural diagram, the width d of two adjacent tooth grooves 305 can be one-fifth, one-sixth or even smaller than the hole pitch s.

[0181] When you need to shorten the strap length to achieve a tight fit, such as Figure 5 , can be in the direction of the buckle 301 (such as Figure 5 The first strap 10 is pushed in the P11 direction by the first strap 10, and the first strap 10 drives the rack 302 to move in the P11 direction. The clamping structure 304 can switch from cooperating with one tooth groove of the rack 302 to cooperating with another tooth groove, thereby shortening the strap length. For example, the shortened length of the strap can be the width d of one tooth groove, the width 2d of two tooth grooves, or the width of more tooth grooves.

[0182] When you need to extend the strap length to achieve a loose fit, Figure 5 The pressing member 303 can be pressed along the M1 direction. Under the pressing force, the clamping structure 304 on the pressing member 303 is disengaged from the tooth groove 305 of the rack 302, and the rack 302 and the first strap 10 connected together move away from the buckle 301 (such as Figure 5 The length of the strap can be extended by moving the watch strap in the direction of P12. In this way, the length of the strap can be finely adjusted.

[0183] In some usage scenarios, users can use both hole spacing adjustment and Figure 4 and Figure 5 Fine-tuning can accurately adjust the length of the strap to fit the wrist and enhance the experience.

[0184] In addition, the wearable device of the example of the present application can use a fine-tuning structure to fine-tune the length of the strap when it is worn, which can make the adjustment accuracy higher, the wrist adaptability better, and achieve a quick adjustment effect.

[0185] exist Figure 4 and Figure 5 In the example, the rack 302 and the pressing member 303 are arranged at the ends of the belt body.

[0186] In some other examples, the rack 302 and the pressing member 303 may also be disposed in the area between the two ends of the strap, and the rack is used to drive the strap to move, thereby realizing the extension and retraction of the strap.

[0187] When the pressing member 303 is pressed, the clamping structure 304 on the pressing member 303 is disengaged from the tooth groove of the rack 302, so that the rack 302 and the first belt body 10 can automatically rebound. Figure 5 , it may also include an elastic member 306. When the rack 302 drives the first belt body 10 to move along the first direction, the elastic member 306 is used to give the first belt body 10 a thrust along the second direction; wherein the first direction is opposite to the second direction, and both the first direction and the second direction are parallel to the extension direction of the first belt body 10.

[0188] In some examples, such as Figure 5 The rack 302 drives the first belt body 10 along Figure 5 When the first belt body 10 moves in the direction of P11, the elastic member 306 is used to move the first belt body 10 in the direction of P11. Figure 5 The thrust force f push in the P12 direction in this example is the direction from the first belt body 10 to the rack 302 (eg Figure 5 The second direction is the direction from the rack 302 to the first belt body 10 (eg Figure 5 That is, in the embodiment, the elastic member 306 pushes the first belt body 10 outwards toward the first belt body 10.

[0189] In other examples, such as Figure 6 In this embodiment, the rack 302 drives the first belt body 10 along Figure 6 When the first belt body 10 moves in the direction P21, the elastic member 306 is used to move the first belt body 10 in the direction P21. Figure 6 The first direction in this example is the direction from the rack 302 to the first belt body 10 (eg Figure 6 The second direction is the direction from the first belt body 10 to the rack 302 (eg Figure 6 That is, in the embodiment, the elastic member 306 pulls the first belt body 10 inwardly toward the rack 302.

[0190] use Figure 5 In the example, one end of the elastic member 306 can be connected to the buckle 301, and the other end can be connected to the rack 302. When the rack 302 drives the first strap 10 along the Figure 5 When the rack 302 moves in the P11 direction, the elastic member 306 is used to move the rack 302 in the P11 direction. Figure 5 Thrust in the direction of P12.

[0191] Figure 7 and Figure 8 The following examples are given respectively: Figure 5 Two configurations of the elastic member 306 in the embodiment.

[0192] like Figure 7 , a mounting groove 307 can be provided on the rack 302, and an abutment member 308 can be provided on the buckle 301, and the abutment member 308 is located in the mounting groove 307. The extending direction of the mounting groove 307 is parallel to the extending direction L of the first belt body 10, the mounting groove 307 has a first end away from the first belt body 10 and a second end close to the first belt body 10, the abutment member 308 is located at the first end, one end of the elastic member 306 abuts against the abutment member 308, and the other end abuts against the rack 302.

[0193] Combination Figure 7 (a) to (d) in the figure introduce the principle of fine adjustment of the strap length. Figure 7 (a), the clamping structure 304 of the pressing member 303 cooperates with the tooth groove A of the rack 302 to give the first strap body 10 a thrust in the direction of the buckle 301; Figure 7 (b), the first strap 10 and the rack 302 move to the left by a distance s, the clamping structure 304 of the pressing member 303 cooperates with the tooth groove B of the rack 302, and at the same time, since the elastic member 306 is compressed, a thrust f toward the first strap 10 is generated, thus achieving a shortening of the strap length; Figure 7 (c) applies a thrust to the pressing member 303, so that the snap-fit ​​structure 304 disengages from the tooth groove B of the rack 302. The rack 302 and the first strap body 10 move to the right by a distance s under the thrust f of the elastic member 306. The snap-fit ​​structure 304 of the pressing member 303 cooperates with the tooth groove A of the rack 302 to extend the length of the strap.

[0194] like Figure 8 , Figure 8 Examples and Figure 7 The same example is that a mounting groove 307 can be opened on the rack 302 , and an abutment member 308 can be provided on the buckle 301 , and the abutment member 308 is located in the mounting groove 307 .

[0195] Figure 8 Examples and above Figure 7 The difference in this example is that the abutment member 308 is located at the second end of the mounting groove 307 , one end of the elastic member 306 is connected to the abutment member 308 , and the other end is connected to the rack 302 .

[0196] Combination Figure 8 (a) to (d) in the figure introduce the principle of fine adjustment of the strap length. Figure 8 (a), the clamping structure 304 of the pressing member 303 cooperates with the tooth groove A of the rack 302 to give the first strap body 10 a thrust in the direction of the buckle 301; Figure 8 (b), the first strap 10 and the rack 302 move to the left by a distance s, the clamping structure 304 of the pressing member 303 cooperates with the tooth groove B of the rack 302, and at the same time, since the elastic member 306 is stretched, a thrust f toward the first strap 10 is generated, thus achieving a shortening of the strap length; Figure 8 (c) applies a thrust to the pressing member 303, so that the snap-fit ​​structure 304 disengages from the tooth groove B of the rack 302. The rack 302 and the first strap body 10 move to the right by a distance s under the thrust f of the elastic member 306. The snap-fit ​​structure 304 of the pressing member 303 cooperates with the tooth groove A of the rack 302 to extend the length of the strap.

[0197] Above Figure 7 Examples and Figure 8In the example, by providing the elastic member 306 , when the length of the strap needs to be extended, the rack 302 and the first strap body 10 can automatically rebound, thereby improving the user experience without the user having to pull the strap body to extend the length of the strap.

[0198] Above Figure 7 Examples and Figure 8 In the example, due to the different positions of the abutment member 308, after the strap is shortened, the elastic member 306 is in a different state. Figure 7 The elastic member 306 is in a compressed state. Thus, in one example, one end of the elastic member 306 can directly abut against the abutment member 308, and the other end can directly abut against the rack 302. Figure 8 In the embodiment, when the strap is shortened, the elastic member 306 is in a stretched state. In some examples, a connection structure can be used to fix one end of the elastic member 306 to the abutment member 308 and the other end to the rack 302. For example, welding can be used.

[0199] In some examples, the abutment member 308 for abutting against the elastic member 306 may be an integral structure with the clasp 301 , or may be connected to the clasp 301 via a connection structure (such as welding).

[0200] Fig. 9 An example is shown Figure 6 The principle of fine-tuning the length of the strap of the structure is as follows: a pulling force is applied to the first strap body 10 in the direction away from the buckle 301; the first strap body 10 and the rack 302 move to the right, thereby lengthening the strap. At the same time, the elastic member 306 is stretched, generating a pulling force f away from the first strap body 10; when a thrust is applied to the pressing member 303, the clamping structure 304 is disengaged from the tooth groove B of the rack 302, and the rack 302 and the first strap body 10 move to the left under the pulling force f of the elastic member 306, thereby shortening the length of the strap.

[0201] Return to Figure 7 Two elastic members 306 for realizing automatic rebound can be provided, namely, elastic member 3061 and elastic member 3062. The mounting groove 307 includes mounting groove 3071 and mounting groove 3072. The abutment member 308 includes abutment member 3081 and abutment member 3082. The mounting groove 3071 and the mounting groove 3072 are arranged in parallel, the elastic member 3061 abuts against the abutment member 3081, and the elastic member 3062 abuts against the abutment member 3082.

[0202] The following describes some structures that can be realized by the buckle 301, the rack 302, the pressing member 303, and the elastic member 306 in conjunction with the structural diagram.

[0203] In some examples, such as Fig.10 , Fig.10The exploded view of the clasp 301 and the first strap 10 is exemplarily shown. The clasp 301 may include a first shell 3011 and a second shell 3012, the first shell 3011 and the second shell 3012 are buckled together, and an installation space is formed inside, and the rack 302 is located in the installation space.

[0204] The first shell 3011 and the second shell 3012 are buckled together, and a through hole 3014 is formed on the side facing the first belt body 10 , and the rack 302 can pass through the through hole 3014 and be fixedly connected to the first belt body 10 .

[0205] Since the rack 302 and the first strap body 10 are fixedly connected together, they can move relative to the buckle 301. Fig.10 A slide groove 3013 may be provided on the first shell 3011 , and the first belt body 10 may slide along the slide groove 3013 , and an extension direction of the slide groove 3013 is parallel to an extension direction of the first belt body 10 .

[0206] In some process structures, the first shell 3011 and the second shell 3012 may be independent structural members connected by a connector. In other process structures, the first shell 3011 and the second shell 3012 are an integrated structural member.

[0207] In order to make the structure symmetrical, convenient for users to operate, and the stability of the belt extension, such as Fig.11 and Fig.12 , Fig.11 The connection relationship between the rack and the pressing member is shown as an example. Fig.12 yes Fig.11 The tooth grooves on the rack 302 can be arranged in two rows, namely, a first row of tooth grooves 3021 and a second row of tooth grooves 3022. The first row of tooth grooves 3021 and the second row of tooth grooves 3022 are arranged back to back, that is, the slot openings of the first row of tooth grooves 3021 are back to the slot openings of the second row of tooth grooves 3022. The first row of tooth grooves 3021 and the second row of tooth grooves 3022 are both parallel to the extension direction of the first belt body 10.

[0208] The pressing member includes a first pressing member 3031 and a second pressing member 3032, which are arranged on opposite sides of the rack 302, wherein the first pressing member 3031 is used in conjunction with the first row of tooth grooves 3021, and the second pressing member 3032 is used in conjunction with the second row of tooth grooves 3022. When in use, the first pressing member 3031 and the second pressing member 3032 can be pressed simultaneously with the thumb and index finger to improve the convenience of operation and the stability of the strap extension.

[0209] See you next time Fig.11The first pressing member 3031 and the second pressing member 3032 may both include a first portion 303A and a second portion 303B connected to the first portion 303A. The first portion 303A is located outside the buckle 301 and is used for user pressing. The first portion 303A is in clearance fit with the buckle 301 to achieve movement of the pressing member relative to the buckle. The second portion 303B extends to the inside of the buckle 301, and the clamping structure 304 may be provided at the end of the second portion 303B away from the first portion 303A.

[0210] In this example, the first part 303A and the second part 303B may be an integral structural member, or structural members independent of each other and connected by a connecting member.

[0211] like Fig.11 , the first row of tooth grooves 3021 is closer to the first part 303A of the second pressing member than the second row of tooth grooves 3022; the second row of tooth grooves 3022 is closer to the first part 303A of the first pressing member 3031 than the first row of tooth grooves 3021; ​​the clamping structure 304 of the first pressing member 3031 cooperates with the first row of tooth grooves 3021, and the clamping structure 304 of the second pressing member 3032 cooperates with the second row of tooth grooves 3022. The cooperation here can be understood as: the clamping structure 304 of the first pressing member 3031 can enter and exit the first row of tooth grooves 3021, and the clamping structure 304 of the second pressing member 3032 can enter and exit the second row of tooth grooves 3022.

[0212] Alternatively, it can be understood that: the second part 303B of the first pressing piece 3031 crosses the rack 302, so that the clamping structure 304 of the first pressing piece 3031 is used in conjunction with the first row of tooth grooves 3021 set far away; the second part 303B of the second pressing piece 3032 crosses the rack 302, so that the clamping structure 304 of the second pressing piece 3032 is used in conjunction with the second row of tooth grooves 3022 set far away.

[0213] like Fig.13 , Fig.13 Another structural diagram of the positional relationship between the pressing member and the rack is shown. In this example, the first row of tooth grooves 3021 and the second row of tooth grooves 3022 are provided, and the first row of tooth grooves 3021 and the second row of tooth grooves 3022 are arranged opposite to each other, that is, the slot opening of the first row of tooth grooves 3021 faces the slot opening of the second row of tooth grooves 3022, the first row of tooth grooves 3021 is arranged close to the first pressing member 3031, and the second row of tooth grooves 3022 is arranged close to the second pressing member 3032, and the clamping structure 304 of the first pressing member 3031 cooperates with the first row of tooth grooves 3021, and the clamping structure 304 of the second pressing member 3032 cooperates with the second row of tooth grooves 3022.

[0214] In some examples, such as Fig.14 , Fig.14The connection relationship between the clamping structure 304 and the tooth groove 305 is exemplarily shown. A tooth groove is surrounded by a first wall surface 3051 and a second wall surface 3052, the first wall surface 3051 is a surface perpendicular to the extension direction of the first belt body 10, that is, the first wall surface is parallel to the moving direction of the pressing member, and the second wall surface 3052 is an inclined surface, which forms an acute angle α relative to the extension direction of the first belt body.

[0215] To cooperate Fig.14 In the exemplary tooth-groove structure, the clamping structure 304 includes a first fitting surface 3041 fitted with the first wall surface 3051, and a second fitting surface 3042 fitted with the second wall surface 3052. The first fitting surface 3041 may be parallel to the first wall surface 3051, and the second fitting surface 3042 may be parallel to the second wall surface 3052.

[0216] The tooth groove and the clamping structure of this structure enable the rack and the first belt body to move in one direction, but when moving in the opposite direction, the pressing member needs to be unlocked. Fig.14 , pushing the first belt body 10, the first belt body 10 and the rack 302 toward the direction close to the buckle 301 ( Fig.14 When the first strap 10 and the rack 302 move in the direction away from the buckle 301 (P1 direction), the pressing member needs to be unlocked, so that the first strap 10 and the rack 302 can move. However, the first strap 10 and the rack 302 move in the direction away from the buckle 301 (P2 direction). Fig.14 When moving in the P2 direction), the pressing part needs to be unlocked before it can move.

[0217] Fig.15 An illustrative example of a possible structure of the mounting groove 307 for mounting the elastic member 306 is provided. In this structure, the mounting groove 307 includes a first section 307A and a second section 307B, the first section 307A and the second section 307B are connected, a portion of the elastic member 306 is located in the first section 307A, and another portion is located in the second section 307B.

[0218] The groove width d of the first section 307A is greater than the groove width d of the second section 307B. The elastic member 306 in the second section 307B can fit with the inner wall of the second section 307B, so that the structure can play a limiting role. For example, when the rack drives the first belt body to move, the deformed elastic member 306 can be constrained by the second section 307B and expand and contract along the axial direction of the elastic member; the elastic member 306 in the first section 307A can be matched with the inner wall of the first section 307A, so that the elastic member 306 can be given enough space for expansion and contraction.

[0219] exist Fig.15In the embodiment, the first section 307A with a larger groove width is further away from the first belt body 10 than the second section 307B with a smaller groove width. In other examples, the first section 307A with a larger groove width can be closer to the first belt body 10 than the second section 307B with a smaller groove width.

[0220] When the rack 302 and the first strap body 10 connected together move to adjust the length of the strap, in order to limit the moving distance, the present application example also includes a limiting structure, such as Fig.16 , Fig.16 The limiting structure 309 is used to limit the rack 302 along the extension direction of the first belt body 10 (such as Fig.16 The distance moved in the L direction).

[0221] The limiting structure 309 has a variety of structures that can be realized, and two examples of structures that can be realized are given below.

[0222] For example, Fig.16 The limiting structure 309 may include a limiting groove 3091 and a limiting column 3092. The extending direction of the limiting groove 3091 is parallel to the extending direction of the first belt body 10 (eg Fig.16 L direction); one of the limiting groove 3091 and the limiting column 3092 is set on the rack 302, and the other is set on the buckle 301. For example, in Fig.16 In the embodiment, the limiting groove 3091 is provided on the rack 302, and the limiting column 3092 is provided on the clasp 301. The limiting column 3092 can be an integrally formed structure with the clasp 301.

[0223] Fig.16 The exemplary limiting groove 3091 may be provided between the mounting groove 3071 and the mounting groove 3072. The length of the limiting groove 3091 may be set according to the telescopic distance.

[0224] In another example, Fig.17 A structural member 3020 may be provided on the clasp 301 , and the structural member 3020 may enclose a limiting cavity 3015 , and at least a portion of the rack 302 may be provided in the limiting cavity 3015 , so that the movement of the rack 302 is constrained by the limiting cavity 3015 to limit the movement distance of the rack 302 .

[0225] The clamping structure 304 of the pressing member 303 extends into the tooth groove of the rack 302. In order to prevent the clamping structure 304 from falling out of the tooth groove when the pressing member 303 is not pressed, the embodiment of the present application further provides a pulling member, such as Fig.18 , Fig.18An embodiment of a pulling member is briefly shown, which includes an elastic member 311, one end of the elastic member 311 is connected to the pressing member 303, and the other end is connected to the buckle 301; the elastic member 311 is used to give the snap-fit ​​structure 304 an elastic force toward the rack 302, so that when the pressing member is not pressed, the snap-fit ​​structure 304 can be tightly attached to the tooth groove, thereby improving the reliability of the entire machine.

[0226] Fig.19 Another arrangement of the elastic member 311 is illustrated, the pressing member includes a first pressing member 3031 and a second pressing member 3032, and a gap is provided between the snap-fit ​​structure 304 at the end of the first pressing member 3031 and the first part 303A of the second pressing member 3032, the elastic member 311 can be arranged in the gap and connected to the snap-fit ​​structure 304 and the first part 303A respectively.

[0227] There is a gap between the clamping structure 304 at the end of the second pressing member 3032 and the first portion 303A of the first pressing member 3031 . The elastic member 311 can be disposed in the gap and connected to the clamping structure 304 and the first portion 303A respectively.

[0228] When the elastic member 311 is Fig.18 When the elastic member 311 is connected between the clasp 301 and the pressing member 303 as shown, there are multiple installation methods, such as Fig. 20 The buckle 301 is provided with a hole 3016 for the pressing member 303 to pass through, and the elastic member 311 can be arranged in the hole 3016, with one end abutting against the buckle 301 and the other end abutting against the pressing member 303.

[0229] When pressing the pressing member 303, in order to limit the moving distance of the pressing member 303, as shown in FIG. Fig.21 A limiting structure 310 may be provided, and the limiting structure 310 limits the distance that the pressing member 303 moves along the third direction, and the third direction is perpendicular or nearly perpendicular to the extension direction of the first belt body 10 .

[0230] Some possible ways to achieve this are Fig.21 The limiting structure 310 includes: a limiting groove 3101 and a limiting post 3102 disposed in the limiting groove 3101; the extending direction of the limiting groove 3101 is parallel to the third direction mentioned above; one of the limiting groove 3101 and the limiting post 3102 is disposed on the pressing member 303, and the other is disposed on the buckle 301. Fig.21 In the example, the limiting groove 3101 is opened on the buckle 301 , and the limiting column 3102 is set on the pressing member 303 .

[0231] In some other possible implementations, a structural member can be provided on the clasp 301, the structural member encloses a limiting cavity, a snap-fit ​​structure is provided in the limiting cavity, and the limiting cavity is used to limit the moving distance of the snap-fit ​​structure to limit the moving distance of the pressing member.

[0232] In order to realize the connection between the first belt body and the second belt body, see Fig. 22 and Fig.23 As shown, Fig. 22 The exploded diagram of some structures of wearable devices is shown as an example. Fig.23 yes Fig. 22 The watchband provided in the embodiment of the present application may also include a first plate 40 and a second plate 50, one end of the first plate 40 is rotatably connected to the clasp 301, and the other end is rotatably connected to the second plate 50, for example, one end of the first plate 40 is rotatably connected to the clasp 301 via a rotating shaft 601, and the other end is rotatably connected to the second plate 50 via a rotating shaft 602.

[0233] The second plate 50 can be connected to the buckle 301 through a buckle 70. The buckle 70 can include a buckle 702 and a slot 701, one of which is provided on the buckle 301 and the other is provided on the second plate 50. Fig.23 In the example, the buckle 702 is provided on the clasp 301 , and the slot 701 is provided on the second plate 50 .

[0234] The second plate 50 is used to connect with the second belt body, for example, Fig.23 In the embodiment, the second plate 50 has a mounting cavity 501 for the second belt body to pass through.

[0235] In some examples, such as Fig. 22 and Fig.23 , the first plate 40 may include two, the second plate 50 may include one, and the one second plate 50 may be arranged between the two first plates 40. In some other examples, the first plate 40 may include one, the second plate 50 may include two, and the one first plate 40 may be arranged between the two second plates 50. In some other examples, the first plate 40 and the second plate 50 may include more.

[0236] In this application example, Fig.23 The limiting column 3092 used to limit the moving distance of the rack 302 can not only play a limiting role, but also connect the first shell and the second shell of the clasp 301. In some examples, the limiting column can extend from the outer wall surface of the clasp 301 to the inside of the clasp 301.

[0237] In order to improve the appearance of the entire device, a countersunk hole 3017 can be opened on the outer wall surface of the buckle 301, and the limiting column 3092 can be set in the countersunk hole 3017.

[0238] like Fig.23 , at least part of the rotating shaft 601 that rotatably connects the first plate 40 and the clasp 301 can be hidden inside the clasp. For example, a shaft hole 3018 can be opened in the clasp 301, and the rotating shaft 601 that rotatably connects the first plate 40 and the clasp 301 can be set in the shaft hole 3018. Compared with setting a protrusion on the outer wall of the clasp, setting the rotating shaft on the protrusion can reduce the thickness of the device.

[0239] In the above embodiment, the length of the watch strap is fine-tuned by moving the strap body to accurately fit the wrist. The present application also provides other structures that can fine-tune the length of the watch strap, as follows:

[0240] like Fig.24 and Fig.25 , Fig.24 is a partial structural diagram of a watch strap provided in an embodiment of the present application. Fig.25 yes Fig.24 In the example of the present application, the end of the first strap 10 is provided with a buckle 301, and further includes a first plate 40 and a second plate 50. The first plate 40 is fixedly connected to the buckle 301, for example, the first plate 40 can be Fig.25 The fastener 80 is fixedly connected to the buckle 301, the second plate 50 is used to connect the second strap 20, and the second plate 50 is engaged with the buckle 301. And the first plate 40 is rotatably connected to the second plate 50.

[0241] In the present example, at least one of the first plate 40 and the second plate 50 is a telescopic plate. Fig.26 The first plate 40 fixedly connected to the clasp 301 may be a telescopic plate, that is, the first plate 40 may be telescopic along its own length direction R; for example, Fig. 27 The second plate 50 rotatably connected to the first plate 40 may be a telescopic plate, that is, the second plate 50 may be telescopic along its own length direction R; for example, the first plate 40 and the second plate 50 may both be telescopic plates.

[0242] like Fig.26 and Fig. 27 The connection position between the second plate 50 and the clasp 301 includes a first gear and a second gear. When at least one of the first plate 40 and the second plate 50 is extended or retracted, the connection position between the second plate 50 and the clasp 301 can be switched between the first gear and the second gear.

[0243] For example, when the telescopic plate is extended, the connection position between the second plate 50 and the buckle 301 can be in the first gear position, which can reduce the radial size of the ring formed by the first belt body and the second belt body, thereby shortening the watch strap. When the telescopic plate is retracted, the connection position between the second plate 50 and the buckle 301 is in the second gear position, which can increase the radial size of the ring formed by the first belt body and the second belt body, thereby lengthening the watch strap.

[0244] In order to realize the extension and retraction of the telescopic plate, there are multiple ways to realize the extension and retraction of the telescopic plate.

[0245] For example, a telescopic plate may be made of a telescopic material.

[0246] For example, Fig.28 , Fig.28 It is a simplified structural diagram of a telescopic plate given in an embodiment of the present application. The telescopic plate may include a first telescopic section 901 and a second telescopic section 902. The first telescopic section 901 and the second telescopic section 902 are connected by an elastic member 903, that is, one end of the elastic member 903 is connected to the first telescopic section 901, and the other end of the elastic member 903 is connected to the second telescopic section 902, wherein the elastic member 903 is used to give elastic force to the second telescopic section 902 and the first telescopic section 901 to stretch relative to each other. For example, when the elastic member 903 is in the first state, the connection position of the second plate 50 and the clasp 301 is in the first gear, and when the elastic member 903 is in the second state, the connection position of the second plate 50 and the clasp 301 is in the second gear.

[0247] Fig.28 In the example, the first plate 40 fixedly connected to the clasp 301 includes a first telescopic section 901 and a second telescopic section 902. In other examples, the second plate 50 rotatably connected to the first plate 40 may include a first telescopic section 901 and a second telescopic section 902, and an elastic member 903 connecting the first telescopic section 901 and the second telescopic section 902.

[0248] To improve the stability of the expansion, in some examples, such as Fig.28 A slide groove 904 may be provided on the second telescopic section 902, and the extension direction of the slide groove 904 is parallel to the extension direction of the two telescopic sections; a guide column 905 may also be provided on the first telescopic section 901, the guide column 905 is fixedly connected to the first telescopic section 901, and the guide column 905 extends into the slide groove 904 and can slide along the extension direction of the slide groove 904.

[0249] The elastic member 903 is disposed in the slide groove 904 , one end of the elastic member 903 is connected to the guide post 905 , and the other end of the elastic member 903 is connected to the second telescopic section 902 .

[0250] Fig.28In the example, the first plate 40 fixedly connected to the clasp 301 includes a first telescopic section 901 and a second telescopic section 902, the first telescopic section 901 is fixedly connected to the clasp 301, the second telescopic section 902 is rotatably connected to the second plate 50, the slide groove 904 is opened on the second telescopic section 902, and the guide column 905 is fixedly set on the first telescopic section 901.

[0251] In other feasible structures, the slide groove 904 may be provided on the first telescopic section 901 , and the guide column 905 may be fixedly provided on the second telescopic section 902 .

[0252] In this way, the first telescopic section 901 and the second telescopic section 902 are in an extended state under the elastic force of the elastic member 903, so that the connection position between the second plate 50 and the buckle 301 can be in one position. When the user applies force to the first telescopic section 901 or the second telescopic section 902, the connection position between the second plate 50 and the buckle 301 can be in another position.

[0253] The following two methods of shifting gears are given in combination with the accompanying drawings, as follows:

[0254] An example: Fig.28 The slide groove 904 has a first end and a second end, the first end is farther away from the connection position A between the second telescopic section 902 and the second plate 50 than the second end; the first gear is farther away from the connection position A between the second telescopic section 902 and the second plate 50 than the second gear.

[0255] When the guide post 905 is located at the first end of the slide slot 904, the elastic force exerted by the elastic member 903 on the first telescopic section 901 and the buckle 301 is directed toward the buckle 301 (such as Fig.28 The elastic force of the elastic member 903 on the second telescopic section 902 deviates from the buckle 301 (as shown in FIG. Fig.28 The black dotted line with an arrow in the figure) makes the connection position between the second plate 50 and the clasp 301 be in the first gear position, so that a tight fit can be achieved.

[0256] like Fig.29 When a thrust is applied to the clasp 301, the thrust is directed toward the first telescopic section 901. Under the action of the thrust, when the guide column 905 slides from the first end to the second end, the connection position between the second plate 50 and the clasp 301 can be switched from the first gear to the second gear, thereby achieving loose wearing.

[0257] Another example: Fig.30 When the guide post 905 is located at the second end of the slide slot 904, the elastic force of the elastic member 903 on the first telescopic section 901 and the clasp 301 deviates from the clasp 301 (such as Fig.30 The elastic member 903 exerts an elastic force on the second telescopic section 902 toward the buckle 301 (as shown in FIG. Fig.30 The black dotted line with an arrow in the figure) makes the connection position between the second plate 50 and the clasp 301 in the second gear position, which can achieve loose wearing.

[0258] like Fig.31 When a pulling force is applied to the clasp 301, the pulling force deviates from the first telescopic section 901. Under the action of the pulling force, when the guide column 905 slides from the second end toward the first end, the connection position between the second plate 50 and the clasp 301 can be switched from the second gear to the first gear, thereby achieving a tight fit.

[0259] Fig.32 An illustrative example of a possible structure of the first telescopic section 901 and the second telescopic section 902 is provided. Part of the second telescopic section 902 is sleeved in the first telescopic section 901. The first telescopic section 901 may include a bottom plate 901B and a cover plate 901A. 901B and the cover plate 901A are buckled together to form a cavity for accommodating the second telescopic section 902. In this way, the elastic member 903 can be hidden in the cavity, thereby improving the appearance of the device.

[0260] Fig.32 In the example, the second telescopic section 902 is sleeved in the first telescopic section 901. In other examples, the first telescopic section 901 may also be sleeved in the second telescopic section 902.

[0261] In order to limit the expansion and contraction amount between the first expansion and contraction section 901 and the second expansion and contraction section 902 , the wearable device may further include a limiting structure, which is used to limit the movement amount of the first expansion and contraction section 901 or the second expansion and contraction section 902 .

[0262] like Fig.33 , an exemplary limiting structure is given, which may include a limiting column 907 and a limiting groove 906, the limiting column 907 can slide along the limiting groove 906, one of the limiting column 907 and the limiting groove 906 is arranged on the first telescopic section 901, and the other is arranged on the second telescopic section 902. Fig.33 In the embodiment, the limiting column 907 is arranged on the first telescopic section 901 , and the limiting groove 906 is opened on the second telescopic section 902 .

[0263] exist Fig.33 In the embodiment, the limiting structure is closer to the connection position between the second plate 50 and the first plate 40 than the elastic member 903. Of course, in some examples, the elastic member 903 may be closer to the connection position between the second plate 50 and the first plate 40.

[0264] In order to switch the connection position between the second plate 50 and the clasp 301 between the first gear and the second gear, a buckle structure can be provided, such as Fig.34A protrusion 3019 can be provided on the clasp 301, and a first slot 501 and a second slot 502 are provided on the second plate 50. The first slot 501 and the second slot 502 are arranged along the extension direction, and the first slot 501 is farther away from the connection position between the second plate and the first plate relative to the second slot 502; when the protrusion 3019 is located in the first slot 501, the connection position between the second plate 50 and the clasp 301 is in the first gear position, and when the protrusion 3019 is located in the second slot 502, the connection position between the second plate 50 and the clasp 301 is in the second gear position.

[0265] exist Fig.34 In the example, the protrusion 3019 is disposed on the clasp 301, and the first and second slots 501, 502 are disposed on the second plate 50. Alternatively, the protrusion 3019 can be disposed on the second plate 50, and the first and second slots 501, 502 can be disposed on the clasp 301.

[0266] In the above examples of the present application, a first gear and a second gear that can be switched are included. In some practicable structures, more switching gears can be set, for example, Fig.34 Based on the structure, more card slots can be set, and the protrusion 3019 can be used to switch between at least three card slots to achieve switching between different gears. This can further increase the adjustment amount of the strap, or make the adjustment amount of the strap smaller and more accurately fit the wrist.

[0267] In the above structure for shifting the gear by the telescopic plate, the first plate 40 may include two, the second plate 50 may include one, and the second plate 50 may be arranged between the two first plates 40. In some other examples, the first plate 40 may include one, the second plate 50 may include two, and the first plate 40 may be arranged between the two second plates 50. In some other examples, the first plate 40 and the second plate 50 may include more.

[0268] Based on the above, the present application provides two possible structures for fine-tuning the strap, one is by moving the strap body, and the other is by switching gears. In some wearable devices, not only the method of moving the strap body but also the method of switching gears can be adopted.

[0269] like Fig.35 , Fig.35 In the wearable device shown, a rack for driving the belt to move, a pressing member for pressing, and other structures are provided in the buckle 301. In addition, a retractable retractable plate is also included, such as Fig.35 The first telescopic section 901 and the second telescopic section 902 are shown. In this way, the fine adjustment amount of the strap can be further reduced, the performance of the device can be improved, and the user experience can be improved.

[0270] exist Fig.35In the embodiment, since the telescopic plate is fixedly connected to the buckle 301, the watch strap also needs to move relative to the buckle 301. In one example, the watch strap may include a first strap segment 10A and a second strap segment 10B rotatably connected to the first strap segment 10A. The first strap segment 10A may slide along the buckle 301, and the first strap segment 10A may be fixedly connected to the rack, and the second strap segment 10B may be rotatably connected to the first strap segment 10A via a rotating shaft 10C.

[0271] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0272] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A strap connection structure for connecting a first strap body of a strap, characterized in that, the strap connection structure includes: a buckle; a rack provided on the buckle, the rack being movable along the extending direction of the first strap body, and the rack being used for fixedly connecting with the first strap body; a pressing member provided on the buckle, the pressing member having a clamping structure cooperating with the rack, the pressing member being movable along a direction intersecting the extending direction of the first strap body so that the clamping structure enters and exits the tooth groove of the rack.

2. The strap connection structure according to claim 1, characterized in that, the strap connection structure further includes: a first elastic member; when the rack moves in a first direction, the first elastic member is used for applying an elastic force to the rack in a second direction; the first direction is opposite to the second direction, and both the first direction and the second direction are parallel to the extending direction of the first strap body.

3. The strap connection structure according to claim 2, characterized in that, one end of the first elastic member is connected to the buckle, and the other end is connected to the rack; the first direction is the direction from the first strap body to the rack, and the second direction is the direction from the rack to the first strap body.

4. The strap connection structure according to claim 2 or 3, characterized in that, an installation groove is formed on the rack, the installation groove has a first end and a second end, the first end of the installation groove is farther from the first strap body than the second end, and the first elastic member is located in the installation groove; a contact member is provided on the buckle, and the contact member is located at the first end of the installation groove; one end of the first elastic member abuts against the contact member, and the other end abuts against the rack.

5. The strap connection structure according to claim 4, characterized in that, the installation groove includes a first section and a second section that are communicated with each other, the groove width of the first section is greater than the groove width of the second section, and a part of the first elastic member is located in the first section and another part is located in the second section.

6. The strap connection structure according to any one of claims 1-5, characterized in that, the strap connection structure further includes: a first limiting structure; the first limiting structure is used for limiting the moving distance of the rack along the extending direction of the first strap body.

7. The strap connection structure according to claim 6, characterized in that, the first limiting structure includes: a first limiting groove and a first limiting post arranged in the first limiting groove; the extending direction of the first limiting groove is parallel to the extending direction of the first strap body; one of the first limiting groove and the first limiting post is arranged on the rack, and the other is arranged on the buckle.

8. The strap connection structure according to any one of claims 1-7, characterized in that, the strap connection structure further includes: a second elastic member; one end of the second elastic member is connected to the pressing member, and the other end is connected to the buckle; the second elastic member is used for applying an elastic force to the clamping structure in the direction towards the rack.

9. The strap connection structure according to any one of claims 1-8, It is characterized in that the strap connection structure further includes: a second limiting structure; the second limiting structure is used to limit the moving distance of the pressing member along a third direction, and the third direction intersects with the extending direction of the first strap body.

10. The strap connection structure according to claim 9, It is characterized in that the second limiting structure includes: a second limiting groove and a second limiting post arranged in the second limiting groove; the extending direction of the second limiting groove is perpendicular to the extending direction of the first strap body; one of the second limiting groove and the second limiting post is arranged on the pressing member, and the other is arranged on the watch buckle.

11. The strap connection structure according to any one of claims 1-10, It is characterized in that the tooth grooves on the rack include a first row of tooth grooves and a second row of tooth grooves, the first row of tooth grooves and the second row of tooth grooves are arranged on opposite sides of the rack, and both the first row of tooth grooves and the second row of tooth grooves are parallel to the extending direction of the first strap body; the pressing member includes a first pressing member and a second pressing member, and the first pressing member and the second pressing member are arranged on opposite sides of the watch buckle; any one of the first pressing member and the second pressing member includes: a first part and a second part connected to the first part, the first part is located outside the watch buckle, the second part extends into the watch buckle, and the clamping structure is arranged at the end of the second part far from the first part; the clamping structure of the first pressing member cooperates with the first row of tooth grooves, and the clamping structure of the second pressing member cooperates with the second row of tooth grooves.

12. The strap connection structure according to claim 11, It is characterized in that the first row of tooth grooves is closer to the first part of the second pressing member than the second row of tooth grooves; the second row of tooth grooves is closer to the first part of the first pressing member than the first row of tooth grooves; the second part of the first pressing member straddles the second row of tooth grooves, so that the clamping structure of the first pressing member cooperates with the first row of tooth grooves; the second part of the second pressing member straddles the first row of tooth grooves, so that the clamping structure of the second pressing member cooperates with the second row of tooth grooves.

13. The strap connection structure according to any one of claims 1-12, It is characterized in that a first sliding groove is arranged on the watch buckle, the extending direction of the first sliding groove is parallel to the extending direction of the first strap body, and the first strap body can slide along the first sliding groove.

14. The strap connection structure according to any one of claims 1-13, It is characterized in that the strap connection structure further includes: a first plate and a second plate, one end of the first plate is rotatably connected to the watch buckle, the other end is rotatably connected to the second plate, the second plate is connected to the watch buckle, the watch buckle is used to be connected to the first strap body, and the second plate is used to be connected to the second strap body of the watch strap.

15. The strap connection structure according to any one of claims 1-13, It is characterized in that the strap connection structure further includes: A first plate and a second plate, one end of the first plate is fixedly connected to the watch buckle, the other end is rotatably connected to the second plate, the second plate is connected to the watch buckle, the watch buckle is used for connecting to a first strap body, and the second plate is used for connecting to a second strap body of the watchband; At least one of the first plate and the second plate is a telescopic plate; The connection position between the second plate and the watch buckle includes a first gear position and a second gear position. When the telescopic plate expands and contracts, the connection position between the second plate and the watch buckle can be switched between the first gear position and the second gear position.

16. The watchband connection structure according to claim 15, characterized in that, The telescopic plate includes: a first telescopic section and a second telescopic section; The watchband connection structure further includes: A third elastic member, one end of the third elastic member is connected to the first telescopic section, the other end is connected to the second telescopic section, and the third elastic member is used for applying an elastic force for the relative elongation of the second telescopic section and the first telescopic section; When the third elastic member is in a first state, the connection position between the second plate and the watch buckle is in the first gear position; When the third elastic member is in a second state, the connection position between the second plate and the watch buckle is in the second gear position.

17. The watchband connection structure according to claim 16, characterized in that, The watchband connection structure further includes: A second sliding groove, the second sliding groove is opened on the second telescopic section, and the extending direction of the second sliding groove is parallel to the telescopic direction of the second telescopic section; A guide post, the guide post is fixedly connected to the first telescopic section, and the guide post is located in the second sliding groove and can slide along the extending direction of the second sliding groove; The third elastic member is arranged in the second sliding groove, one end of the third elastic member abuts against the guide post, and the other end abuts against the second telescopic section.

18. The watchband connection structure according to claim 17, characterized in that, The first plate includes the first telescopic section and the second telescopic section, the first telescopic section is fixedly connected to the watch buckle, and the second telescopic section is rotatably connected to the second plate.

19. The watchband connection structure according to claim 17 or 18, characterized in that, The second sliding groove has a first end and a second end, and the first end of the second sliding groove is farther from the connection position between the second telescopic section and the second plate than the second end; The first gear position is farther from the connection position between the second telescopic section and the second plate than the second gear position; When the guide post is located at the first end of the second sliding groove, the connection position between the second plate and the watch buckle is in the first gear position; Under a first acting force, when the guide post slides from the first end towards the second end, the connection position between the second plate and the watch buckle can be switched from the first gear position to the second gear position, and the first acting force faces the watch buckle.

20. The watchband connection structure according to claim 17 or 18, characterized in that, The second sliding groove has a first end and a second end, and the first end of the second sliding groove is farther from the connection position between the second telescopic section and the second plate than the second end; The first gear position is further away from the connection position between the second telescopic section and the second plate than the second gear position; When the guide post is located at the second end of the second chute, the connection position between the second plate and the watch buckle is at the second gear position; Under the second acting force, when the guide post slides from the second end towards the first end, the connection position between the second plate and the watch buckle can be switched from the second gear position to the first gear position, and the second acting force is away from the watch buckle.

21. The strap connection structure according to any one of claims 16-20, characterized in that, A cavity is provided in the first telescopic section, and at least a part of the second telescopic section extends into the cavity; The third elastic member is arranged in the cavity.

22. The strap connection structure according to any one of claims 16-21, characterized in that, The strap connection structure further includes: A buckle and a card slot, one of the buckle and the card slot is arranged on the watch buckle, and the other is arranged on the second plate; The card slot includes a first card slot and a second card slot, and the first card slot and the second card slot are arranged along the telescopic direction of the second telescopic section, and the first card slot is further away from the connection position between the second telescopic section and the second plate than the second card slot; When the buckle is located in the first card slot, the connection position between the second plate and the watch buckle is at the first gear position, and when the buckle is located in the second card slot, the connection position between the second plate and the watch buckle is at the second gear position.

23. The strap connection structure according to any one of claims 16-22, characterized in that, The strap connection structure further includes: a third limiting structure for limiting the telescopic amount of the second telescopic section relative to the first telescopic section.

24. The strap connection structure according to claim 23, characterized in that, The third limiting structure includes: a third limiting groove and a third limiting post arranged in the third limiting groove; The extending direction of the third limiting groove is parallel to the extending direction of the second telescopic section; One of the third limiting groove and the third limiting post is arranged on the first telescopic section, and the other is arranged on the second telescopic section.

25. A strap, characterized in that, comprising: A first strap body; The strap connection structure according to any one of claims 1-24; wherein, the rack of the strap connection structure is fixedly connected to the first strap body.

26. The strap according to claim 25, characterized in that, The strap further includes a second strap body; The strap connection structure includes: a first plate and a second plate, one end of the first plate is rotatably connected to the watch buckle, the other end is rotatably connected to the second plate, the second plate is connected to the watch buckle, and the second plate is connected to the second strap body; A third chute is arranged on the watch buckle, and the extending direction of the third chute is parallel to the extending direction of the first strap body, and the first strap body section can slide along the third chute.

27. The strap according to claim 25, characterized in that, The strap further includes a second strap body; The strap connection structure includes: a first plate and a second plate. One end of the first plate is fixedly connected to the buckle, and the other end is rotatably connected to the second plate. The second plate is connected to the buckle and is connected to the second strap body. At least one of the first plate and the second plate is a telescopic plate. The connection position between the second plate and the buckle includes a first gear position and a second gear position. When the telescopic plate expands and contracts, the connection position between the second plate and the buckle can be switched between the first gear position and the second gear position. The first strap body includes a first strap body segment and a second strap body segment. A third chute is provided on the buckle, and the extending direction of the third chute is parallel to the extending direction of the first strap body. The first strap body segment can slide along the third chute. The first strap body segment is rotatably connected to the second strap body segment.

28. A strap connection structure for connecting a first strap body and a second strap body of a strap. It is characterized in that The strap connection structure includes: A buckle; A first plate and a second plate. One end of the first plate is fixedly connected to the buckle, and the other end is rotatably connected to the second plate. The second plate is connected to the buckle. The buckle is used to connect to the first strap body, and the second plate is used to connect to the second strap body. At least one of the first plate and the second plate is a telescopic plate. The connection position between the second plate and the buckle includes a first gear position and a second gear position. When the telescopic plate expands and contracts, the connection position between the second plate and the buckle can be switched between the first gear position and the second gear position.

29. The strap connection structure according to claim 28. It is characterized in that The telescopic plate includes: a first telescopic segment and a second telescopic segment. The strap connection structure further includes: An elastic member. One end of the elastic member is connected to the first telescopic segment, and the other end is connected to the second telescopic segment. The elastic member is used to apply an elastic force for the relative elongation of the second telescopic segment and the first telescopic segment. When the elastic member is in a first state, the connection position between the second plate and the buckle is in the first gear position. When the elastic member is in a second state, the connection position between the second plate and the buckle is in the second gear position.

30. The strap connection structure according to claim 29. It is characterized in that The strap connection structure further includes: A chute opened on the second telescopic segment, and the extending direction of the chute is parallel to the telescopic direction of the second telescopic segment. A guide post fixedly connected to the first telescopic segment, and the guide post is located in the chute and can slide along the extending direction of the chute. The elastic member is arranged in the chute, one end of the elastic member abuts against the guide post, and the other end abuts against the second telescopic segment.

31. The strap connection structure according to claim 30. It is characterized in that The first plate includes the first telescopic segment and the second telescopic segment. The first telescopic segment is fixedly connected to the buckle, and the second telescopic segment is rotatably connected to the second plate.

32. The strap connection structure according to claim 30 or 31. It is characterized in that The sliding groove has a first end and a second end, and the first end of the sliding groove is farther from the connection position between the second telescopic section and the second plate than the second end; The first gear position is farther from the connection position between the second telescopic section and the second plate than the second gear position; When the guide post is located at the first end of the sliding groove, the connection position between the second plate and the watch buckle is at the first gear position; Under a first acting force, when the guide post slides from the first end towards the second end, the connection position between the second plate and the watch buckle can be switched from the first gear position to the second gear position, and the first acting force faces the watch buckle.

33. The strap connection structure according to claim 30 or 31, characterized in that, The sliding groove has a first end and a second end, and the first end of the sliding groove is farther from the connection position between the second telescopic section and the second plate than the second end; The first gear position is farther from the connection position between the second telescopic section and the second plate than the second gear position; When the guide post is located at the second end of the sliding groove, the connection position between the second plate and the watch buckle is at the second gear position; Under a second acting force, when the guide post slides from the second end towards the first end, the connection position between the second plate and the watch buckle can be switched from the second gear position to the first gear position, and the second acting force deviates from the watch buckle.

34. The strap connection structure according to any one of claims 29-33, characterized in that, A cavity is provided in the first telescopic section, and at least a part of the second telescopic section extends into the cavity; The elastic member is arranged in the cavity.

35. The strap connection structure according to any one of claims 29-34, characterized in that, The strap connection structure further includes: a limiting structure for limiting the telescopic amount of the second telescopic section relative to the first telescopic section.

36. The strap connection structure according to claim 35, characterized in that, The limiting structure includes: a limiting groove and a limiting post arranged in the limiting groove; The extending direction of the limiting groove is parallel to the extending direction of the second telescopic section; One of the limiting groove and the limiting post is arranged on the first telescopic section, and the other is arranged on the second telescopic section.

37. The strap connection structure according to any one of claims 29-36, characterized in that, The strap connection structure further includes: A buckle and a card slot, one of the buckle and the card slot is arranged on the watch buckle, and the other is arranged on the second plate; The card slot includes a first card slot and a second card slot, the first card slot and the second card slot are arranged along the telescopic direction of the second telescopic section, and the first card slot is farther from the connection position between the second telescopic section and the second plate than the second card slot; When the buckle is located in the first card slot, the connection position between the second plate and the watch buckle is at the first gear position, and when the buckle is located in the second card slot, the connection position between the second plate and the watch buckle is at the second gear position.

38. A strap, characterized in that, comprising: A first strap body and a second strap body; The strap connection structure according to any one of claims 28-37; Wherein, the first strap body is rotatably connected to the watch buckle, and the second strap body is connected to the second plate.

39. A wearable device, Characterized in that, Comprising: A watch face; The strap according to claim 25, 26, 27 or 38; Wherein, the strap is connected to the watch face.

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