Watch buckle, watchband and wearable device

Abstract

The utility model provides a watch buckle, a watchband and wearable equipment. The watch buckle comprises a first folding piece, a second folding piece, a mounting seat and an elastic buckle assembly. One end of the first folding piece is fixed on the mounting seat, the other end of the first folding piece is rotatably connected with one end of the second folding piece, and the other end of the second folding piece is connected with the mounting seat through an elastic buckle assembly. The first part and the second part of the elastic buckle assembly can be locked or separated, so that the first folding piece and the second folding piece can be kept closed or opened. In the production and use process, one of the first part and the second part has large elastic stroke or elastic deformation, the first part and the second part are not prone to deformation and failure, and the reliability and stability of the watch buckle can be improved. The watchband comprises a first fixing band, a second fixing band and a watch buckle, and the watch buckle can realize detachable connection between the first fixing band and the second fixing band. The wearable device comprises a device body and a watchband, and the first fixing band and the second fixing band are connected to the device body.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of wearable devices, and in particular to a watch buckle, a watch strap, and a wearable device. Background Art

[0002] In wearable devices (such as watches), a fixed strap is connected to each end of the device body. The buckle can realize the detachable connection between the two fixed straps and the adjustment of the length of the fixed strap. How to make the buckle stable and reliable and improve the user's wearing experience is a topic that the industry needs to face. Utility Model Content

[0003] The embodiments of the present application provide a watch buckle, a watch strap and a wearable device, wherein the watch buckle is stable and reliable during use.

[0004] The embodiment of the present application adopts the following technical solution:

[0005] In a first aspect, an embodiment of the present application provides a clasp, comprising: a first folding piece, a second folding piece, a mounting seat, and a snap assembly. The first folding piece has a first end and a second end opposite to each other, and the first end is fixed to the mounting seat. The second folding piece has a third end and a fourth end opposite to each other, and the second end and the third end are rotatably connected so that the first folding piece and the second folding piece can be closed or opened. The snap assembly comprises a first part disposed on the mounting seat, and a second part disposed at the fourth end. When the first folding piece and the second folding piece are closed, the first part and the second part of the snap assembly are locked. When the first folding piece and the second folding piece are opened, the first part and the second part of the snap assembly are separated.

[0006] The clasp provided in the embodiment of the present application has one end of the first folding member fixed on the mounting seat, the other end of the first folding member is rotatably connected to one end of the second folding member, and the other end of the second folding member is connected to the mounting seat via a snap assembly. The first part and the second part in the snap assembly can be locked or separated, so that the first folding member and the second folding member can remain closed or open. Compared with the related art using a hard interference structure of the first fastener and the second fastener, the snap assembly of this embodiment has a certain elasticity. During production and use, one of the first part and the second part has a large elastic stroke or elastic deformation. The first part and the second part are not easy to deform and fail, which can improve the reliability and stability of the clasp.

[0007] In an optional implementation, the first folding member includes a first curved plate, and the second folding member includes a second curved plate; the first curved plate has two opposite ends, namely a first end and a second end, and the second curved plate has two opposite ends, namely a third end and a fourth end. The second end and the third end are rotatably connected via a pin. When the first folding member and the second folding member are closed, the first curved plate and the second curved plate are arranged along the direction of the pin, and the first curved plate and the second curved plate extend in the same direction.

[0008] The closed first folding member and the second folding member form an arc structure and are held between the first fixing belt and the second fixing belt, which has little effect on the bending shape of the first fixing belt and the second fixing belt. Under the same total thickness, the thickness of the first arc plate and the second arc plate can be increased, increasing the rigidity of both and not easily deformed by force.

[0009] In an optional implementation, the first arc plate and the second arc plate are rotatably connected via a pin, and the end of the first arc plate and the end of the second arc plate are respectively provided with connecting holes, and the pin is connected to the connecting holes of the two, so that the first arc plate and the second arc plate can both rotate around the pin.

[0010] In an optional implementation, there are multiple first curved plates, which are spaced apart along the direction of the pin shaft (i.e., the axial direction of the pin shaft), and when the first folding member and the second folding member are closed, at least one second curved plate is located between the multiple first curved plates. The rotational connection between the first curved plate and the second curved plate is stable and reliable.

[0011] In an optional implementation, two first arc plates are arranged at intervals along the direction of the pin shaft, and a second arc plate is arranged between the two first arc plates. The rotational connection between the first arc plate and the second arc plate is stable and reliable. The position of the snap assembly can be arranged corresponding to the fourth end of the second arc plate, or can be arranged corresponding to the first end of the first arc plate.

[0012] In an optional implementation, two first curved plates and two second curved plates are configured, and the first curved plates and the second curved plates are arranged alternately in sequence along the direction of the pin shaft. The rotational connection between the first curved plate and the second curved plate is stable and reliable. The position of the snap assembly can be set corresponding to the fourth end of one of the second curved plates, or can be set corresponding to the first end of the first curved plate.

[0013] In an optional implementation, when multiple snap-in assemblies are set, one snap-in assembly can be set corresponding to the fourth end of the second arc plate near the middle position, and another snap-in assembly can be set corresponding to the first end of the first arc plate near the middle position. Multiple snap-in assemblies can make the connection between the second folding member and the mounting seat stable and reliable.

[0014] In an optional implementation, a first arc plate and a second arc plate are arranged along the direction of the pin shaft (i.e., the axial direction of the pin shaft). The rotational connection between the first arc plate and the second arc plate is stable and reliable. The position of the snap assembly can be arranged corresponding to the fourth end of the second arc plate, or can be arranged corresponding to the first end of the first arc plate.

[0015] In an optional implementation, the first part is a bayonet structure, and the second part is a buckle, and the bayonet structure and the buckle can be snap-fitted.

[0016] In an optional implementation, the first part is a buckle, and the second part is a bayonet structure, and the bayonet structure and the buckle can be snap-fitted.

[0017] In an optional implementation, the first end of the first folding member has a cover, which is fixed to the mounting seat, the cover and the mounting seat form a mounting groove, the bayonet structure is arranged at the mounting groove, and the cover has a avoidance area for partially exposing the bayonet structure. The bayonet structure is conveniently arranged on the mounting seat, and the mounting seat and the cover can provide protection for the bayonet structure. The cover is fixed to the mounting seat, so that the first end of the first folding member is fixed to the mounting seat.

[0018] In an optional implementation, the mounting groove may be formed on the mounting seat, and the cover portion is disposed on the notch of the mounting groove. Alternatively, the mounting groove may be formed on the cover portion, and the mounting seat is disposed on the notch of the mounting groove.

[0019] In an optional implementation, the mounting seat is in the form of a rectangular parallelepiped, and the length direction of the mounting seat and the width direction of the fixing belt may be parallel. The cover may be in the form of a rectangular plate.

[0020] In an optional implementation, the cover and the mounting seat may be assembled by fasteners (such as screws), snaps, bonding, or the like.

[0021] In an optional implementation, the cover portion and the mounting seat are connected via fasteners, and the fasteners are arranged along the stacking direction of the cover portion and the mounting seat.

[0022] In an optional implementation, the cover and the mounting seat are connected by a fastener, a convex structure can be provided on the side of the cover facing the mounting seat, and a concave structure can be provided on the side of the mounting seat facing the cover, and the concave structure and the convex structure are matched. Aligning and assembling the convex structure on the concave structure can increase the effective length of the fastener, make the cover and the mounting seat connected reliably, and reduce the total thickness of the cover and the mounting seat.

[0023] In an optional implementation, when the outer convex structure is in the shape of an outer convex frame, the inner concave structure is a frame-shaped groove; or, when the outer convex structure is in the shape of an outer convex rectangle, the inner concave structure is a rectangular groove.

[0024] In an optional implementation, the bayonet structure may include a sliding buckle and an elastic member, wherein the sliding buckle is movably mounted on the mounting seat, one end of the elastic member is arranged opposite to the sliding buckle, and the other end of the elastic member is arranged opposite to the wall of the mounting seat, and the elastic member is used to make the sliding buckle elastically expand and contract. The elastic member is in an extended state, the sliding buckle is in an extended position, and the snap assembly is in a locked state or a separated state. The elastic member is in a compressed state, the sliding buckle is in a retracted position, and the snap assembly is in a critical state. During the contact and fastening process between the sliding buckle and the snap, the elastic member can be stretched and deformed, and the sliding buckle can have a larger sliding stroke under the action of the elastic member. The sliding buckle and the snap are not easily deformed and failed due to stress, so that the reliability and stability of the watch buckle are relatively high.

[0025] When the snap assembly is in a locked state, the elastic member on the mounting seat stretches to its maximum length, the stretched elastic member causes the sliding member to extend, and the extended sliding member and the buckle are in contact and engaged. The first folding member and the second folding member remain closed. When the snap assembly is in a separated state, that is, the first part and the second part are separated, the elastic member on the mounting seat stretches to its maximum length, the stretched elastic member causes the sliding member to extend, and the sliding member and the buckle are completely separated. The first folding member and the second folding member remain open. When the snap assembly is in a critical state, the sliding member and the buckle are in contact, the sliding member compresses the elastic member on the mounting seat to store energy, and the length of the elastic member becomes smaller. By moving the buckle relative to the mounting seat, the buckle and the sliding member can be engaged or separated, and the elastic member on the mounting seat can be restored to its maximum length.

[0026] In an optional implementation, the elastic member is an elastic structure such as a spring or a spring sheet.

[0027] In an optional implementation, the sliding buckle comprises a sliding portion and a first buckle portion, the sliding portion is slidably mounted on the mounting seat, the sliding portion has two opposite ends along its sliding direction (i.e., the moving direction of the sliding buckle), the first buckle portion is connected to one end of the sliding portion, and the elastic member is provided at the other end of the sliding portion. The buckle can be snapped to the first buckle portion.

[0028] The snap-on assembly is in a separated state. Under the action of the elastic member, the first snap portion extends out of the cover portion, and the buckle and the extended first snap portion are completely separated. When the buckle and the first snap portion need to be engaged, the buckle is pushed into the first buckle, and the buckle acts on the first buckle to shrink the first buckle, and the elastic member is compressed to store energy, and the snap-on assembly is in a critical state. The buckle is continued to be pushed into the first buckle, so that the buckle and the first buckle are engaged and matched, and the elastic member stretches and releases energy to extend the first buckle, and the snap-on assembly is in a locked state. During the contact and engagement process between the buckle and the sliding buckle, the elastic member can make the sliding buckle elastically expand and contract, and the bayonet structure has a large elastic stroke. The buckle and the sliding buckle are not easily deformed and failed due to stress, and the reliability of the watch buckle is high.

[0029] In an optional implementation, in the sliding direction of the sliding part (i.e., the moving direction of the sliding buckle), the cross-sectional shape of the sliding part and the cross-sectional shape of the mounting groove of the mounting seat are adapted to each other, so that the sliding part can be slidably installed on the mounting seat along a predetermined direction.

[0030] In an optional implementation, in the sliding direction of the sliding part, the cross-section of the sliding part and the cross-section of the mounting groove are both rectangular. The sliding part can be a cuboid or other shapes. The first buckle part can be sheet-shaped, L-shaped or other shapes.

[0031] In an optional implementation, the mounting seat has a first stop wall, which is used to abut and cooperate with the sliding part to limit the sliding part; the first stop wall has an opening for the first buckle part to extend out.

[0032] In an optional implementation, the first buckle portion includes a first section and a second section, the first section and the second section are L-shaped and connected, the first section is connected to the sliding section, and the second section is used to engage with the buckle, and the L-shaped first buckle portion has good structural strength, which improves the reliability of the first buckle portion. Under the action of the elastic member, the sliding section is against the first retaining wall, the first section is located at the opening, and the second section extends out of the opening.

[0033] In an optional implementation, the sliding buckle also includes a first limiting portion, the first limiting portion is connected to an end of the sliding portion facing away from the first buckle portion, and one end of the elastic member is mounted on the first limiting portion, thereby improving the reliability of the matching between the sliding buckle and the elastic member.

[0034] In an optional implementation, the elastic member is a compression spring. The first limiting portion can be a columnar structure provided on the sliding portion, and the compression spring is sleeved on the columnar structure.

[0035] In an optional implementation, the elastic member is a compression spring. The first limiting portion may also be a positioning hole provided on the sliding portion, and one end of the compression spring extends into the positioning hole.

[0036] In an optional implementation, the sliding part is provided with a plurality of elastic members, and the mounting seat has a partition wall, and two adjacent elastic members are separated by the partition wall. Arranging a plurality of short elastic members side by side on a small-sized mounting seat can increase the elastic force on the sliding part, and avoid interference between the two elastic members during use.

[0037] In an optional implementation, the head of the buckle has a first guide surface. During the process of switching the first folding member and the second folding member from open to closed, the first guide surface is used to slide in contact with the first buckle portion to switch the snap assembly from a separated state to a critical state.

[0038] When the snap assembly is pressed to push the buckle into the bayonet structure, the first guide surface of the buckle head and the first buckle part are in sliding contact, so that the first buckle part can be switched from the extended position to the retracted position, and the elastic member is switched from the extended position to the compressed position, that is, the snap assembly is switched from the separated state to the critical state, which facilitates the user to push the buckle into the bayonet structure. The first guide surface can be an arc surface.

[0039] In an optional implementation, the middle portion of the buckle has a second guide surface, and during the process of the first folding member and the second folding member switching from closed to open, the second guide surface is used to slide in contact with the first buckle portion to switch the snap assembly from a locked state to a critical state.

[0040] In the process of pulling the buckle open to disengage the buckle from the bayonet structure, the second guide surface in the middle of the buckle slides in contact with the first buckle portion, so that the first buckle portion switches from the extended position to the retracted position, and the elastic member switches from the extended position to the compressed position, that is, the snap assembly switches from the locked state to the critical state, so that the user can easily disengage the buckle from the bayonet structure. The second guide surface can be an arc surface.

[0041] In an optional implementation, the buckle includes a columnar portion and a head, the head is connected to one end of the columnar portion, and the other end of the columnar portion is connected to the fourth end of the second folding member. The end of the head away from the columnar portion has a first guide surface. The side of the head facing the columnar portion has a second guide surface.

[0042] In an optional implementation, the bayonet structures are arranged in pairs, the first buckles in the paired bayonet structures are arranged to face each other at intervals, and the elastic expansion and contraction directions of the paired bayonet structures are opposite. The buckle includes a columnar portion and a head, the head is connected to one end of the columnar portion, and the other end of the columnar portion is connected to the fourth end of the second folding member. When the first folding member and the second folding member are closed, the columnar portion is located between the paired first buckles, and the head is against the paired first buckles. The same buckle and the paired bayonet structures are snap-fitted to improve the connection reliability of the snap assembly.

[0043] In an optional implementation, the moving direction of the slider, the expansion and contraction direction of the elastic member and the length direction of the mounting seat are parallel. The length direction of the mounting seat can be the width direction of the fixing belt of the wearable device. The length direction space of the mounting seat is fully utilized, so that the width dimension of the mounting seat can be made smaller.

[0044] In an optional implementation, the mounting seat is a rectangular parallelepiped, the length direction of the mounting seat is the width direction of the fixing belt, the width direction of the mounting seat is the extension direction of the fixing belt, and the thickness direction of the mounting seat is the thickness direction of the fixing belt.

[0045] In an optional implementation, the moving direction of the sliding fastener is parallel to the expansion and contraction direction of the elastic member, and the moving direction of the sliding fastener is perpendicular to the length direction of the mounting seat.

[0046] In an optional implementation, the mounting seat has a mounting hole; the sliding buckle includes a button portion and a second buckle portion, the button portion is slidably mounted on the mounting seat and exposed at the mounting hole, the second buckle portion is connected to the button portion, the elastic member is arranged on a side of the button portion away from the mounting hole, and the buckle can be snapped to the second buckle portion. During the contact and snapping process between the buckle and the sliding buckle, the elastic member can make the sliding buckle elastically expand and contract, the bayonet structure has a large elastic stroke, the buckle and the sliding buckle are not easily deformed and failed due to stress, and the reliability of the watch buckle is high.

[0047] In an optional implementation, in the sliding direction of the button part (i.e., the moving direction of the sliding fastener), the cross-sectional shape of the button part is adapted to the cross-sectional shape of a portion of the mounting groove of the mounting seat, so that the button part can be slid linearly along a predetermined direction and installed on the mounting seat.

[0048] In an optional implementation, in the sliding direction of the button portion, the cross section of the button portion and the partial cross section of the mounting groove are both rectangular. The button portion may be a rectangular parallelepiped. The second buckle portion may be strip-shaped.

[0049] In an optional implementation, the slide fastener further includes a second limiting portion, the second limiting portion is connected to the button portion, and the mounting seat has a second retaining wall, the second retaining wall is used to abut and cooperate with the second limiting portion to limit the button portion, and limit the position of the button portion to prevent the button portion from detaching from the mounting seat.

[0050] In an optional implementation, the second limiting portion may be an outer convex structure provided on the button portion, and the outer convex structure and the second retaining wall are in abutment with each other.

[0051] In an optional implementation, a side of the button portion away from the mounting hole has a receiving groove, and the elastic member is at least partially disposed in the receiving groove, thereby reducing the space occupied by the elastic member on the mounting seat and facilitating the positioning and mounting of one end of the elastic member on the button portion.

[0052] In an optional implementation, the head of the buckle has a third guide surface. During the process of switching the first folding member and the second folding member from open to closed, the third guide surface is used to slide in contact with the second buckle portion to switch the snap assembly from a separated state to a critical state.

[0053] When the snap assembly is pressed to push the buckle into the bayonet structure, the third guide surface of the buckle head and the second buckle portion slide in contact, so that the second buckle portion switches from the extended position to the retracted position, and the elastic member switches from the extended position to the compressed position, that is, the snap assembly switches from the separated state to the critical state, making it convenient for the user to push the buckle into the bayonet structure. The third guide surface can be an inclined surface or an arc surface.

[0054] In an optional implementation, the moving direction of the slider is parallel to the expansion and contraction direction of the elastic member, and the moving direction of the slider is perpendicular to the length direction of the mounting seat. By making full use of the length direction space of the mounting seat, the button part in the slider can be made longer, which is convenient for users to press the button part.

[0055] In an optional implementation, the mounting seat is a rectangular parallelepiped, the length direction of the mounting seat is the width direction of the fixing belt, the width direction of the mounting seat is the extension direction of the fixing belt, and the thickness direction of the mounting seat is the thickness direction of the fixing belt.

[0056] In an optional implementation, the moving direction of the sliding fastener is parallel to the expansion and contraction direction of the elastic member, and the moving direction of the sliding fastener is parallel to the length direction of the mounting seat.

[0057] In an optional implementation, the bayonet structure may include a bent spring sheet that can be elastically deformed, and the bent spring sheet has a bayonet with a variable mouth width. When the snap assembly is in a locked state or a separated state, the mouth width of the bayonet is a first width. When the snap assembly is in a critical state, the mouth width of the bayonet is a second width; the first width is smaller than the second width.

[0058] During the contact and buckling process of the bent spring sheet and the buckle, the bent spring sheet can be bent and deformed, and the bent spring sheet can have a large elastic deformation. Neither the bent spring sheet nor the buckle is easily deformed and failed due to stress, which makes the reliability and stability of the clasp higher.

[0059] In an optional implementation, the bent spring sheet includes a first transverse arm, a first inclined arm, a second inclined arm, a second transverse arm, a third inclined arm, a fourth inclined arm and a third transverse arm connected in sequence, the first transverse arm, the second transverse arm and the third transverse arm are flush and arranged on a mounting seat, the first inclined arm and the second inclined arm are arranged in parallel, the third inclined arm and the fourth inclined arm are arranged in parallel, the second inclined arm and the third inclined arm are arranged at intervals, and a slot is formed between the second inclined arm and the third inclined arm. When the snap assembly is in a locked state, when the snap is located between the second inclined arm and the third inclined arm, the second inclined arm and the third inclined arm are respectively arranged against opposite sides of the snap.

[0060] In the initial state of the bent spring sheet, the second inclined arm, the third inclined arm and the second transverse arm are arranged roughly in a triangle, and the end of the second inclined arm away from the second transverse arm and the end of the third inclined arm away from the second transverse arm are arranged close to each other, and the width of the mouth of the slot is relatively small. When the buckle is just pushed into the slot of the bent spring sheet, the buckle acts on the second inclined arm and the third inclined arm, so that the second inclined arm and the third inclined arm open to both sides, the second inclined arm moves with the first inclined arm, and the fourth inclined arm moves with the third inclined arm, and the width of the mouth of the slot is relatively large. When the buckle is completely pushed into the slot of the bent spring sheet, the buckle is limited by the second inclined arm and the third inclined arm, so that the buckle and the bent spring sheet are locked.

[0061] In an optional implementation, a cover is provided on the mounting seat and has an escape zone, the slot of the bent spring sheet is provided corresponding to the escape zone of the cover, the first inclined arm and the second inclined arm are located on one side of the escape zone, and the third inclined arm and the fourth inclined arm are located on the other side of the escape zone. The first transverse arm and the third transverse arm are limited by the cover.

[0062] In an optional implementation, a rounded corner can be set between the first inclined arm and the second inclined arm, and a rounded corner can be set between the third inclined arm and the fourth inclined arm to facilitate sliding contact between the head of the buckle and the rounded corner area, so that the head of the buckle and the slot of the bent spring sheet can be snap-fitted.

[0063] In an optional implementation, the bent spring sheet includes a sheet portion, a first cantilever and a second cantilever, the sheet portion is disposed on the mounting seat, one end of the first cantilever is connected to the sheet portion, one end of the second cantilever is connected to the sheet portion, the first cantilever and the second cantilever are spaced apart, and a slot is formed between the first cantilever and the second cantilever. When the snap assembly is in a locked state, when the snap is located between the first cantilever and the second cantilever, the first cantilever and the second cantilever are respectively disposed against opposite sides of the snap.

[0064] In the initial state of the bent spring sheet, a slot with a larger bottom and a smaller top is formed between the first cantilever and the second cantilever, and the free end of the first cantilever and the free end of the second cantilever are arranged close to each other, and the width of the mouth of the slot is smaller. When the buckle is just pushed into the slot of the bent spring sheet, the buckle acts on the first cantilever and the second cantilever, so that the first cantilever and the second cantilever are opened to both sides, and the width of the mouth of the slot is larger. When the buckle is completely pushed into the slot of the bent spring sheet, the buckle is limited by the first cantilever and the second cantilever, so that the buckle and the bent spring sheet are locked.

[0065] In an optional implementation, the above two types of bayonet structures in the form of bent spring sheets, the buckle includes a columnar portion and a head, the head is connected to one end of the columnar portion, and the other end of the columnar portion is connected to the fourth end of the second folding member; in the width direction of the mouth of the slot, the width of the head is greater than the width of the columnar portion, and the width of the head is greater than the first width. The buckle with the columnar portion and the head is easy to form, and the buckle can be snap-fitted with the bent spring sheet.

[0066] In an optional implementation, the two types of bayonet structures in the form of bent spring sheets have a fourth guide surface on the side of the head away from the columnar portion. During the process of switching from opening to closing of the first folding member and the second folding member, the fourth guide surface is used to slide in contact with the bent spring sheet to switch the snap assembly from a separated state to a critical state.

[0067] When the buckle assembly is pressed to push the buckle into the bent spring sheet, the fourth guide surface of the buckle head and the bent spring sheet are in sliding contact, which can increase the width of the slot of the bent spring sheet, that is, the buckle assembly switches from the separated state to the critical state, making it easier for the user to push the buckle into the bent spring sheet. The fourth guide surface can be an arc surface.

[0068] In an optional implementation, the two types of bayonet structures in the form of bent spring sheets have a fifth guide surface at the head near the columnar portion. During the process of switching from closed to open of the first folding member and the second folding member, the fifth guide surface is used to slide in contact with the bent spring sheet to switch the bayonet structure from a locked state to a critical state.

[0069] In the process of pulling the buckle open to separate the buckle from the bent spring sheet, the fifth guide surface of the buckle head and the bent spring sheet slide in contact, which can increase the width of the slot of the bent spring sheet, that is, the buckle assembly switches from the locked state to the critical state, making it easier for the user to separate the buckle from the bent spring sheet. The fifth guide surface can be an arc surface.

[0070] In an optional implementation, the fourth end of the second foldable member has a positioning ring for the fixing belt to pass through; the middle of the second foldable member has a snap-fit ​​portion for snap-fitting with the snap-fit ​​hole of the fixing belt, so that the fixing belt is limited on the second foldable member and the use length of the fixing belt is limited.

[0071] In an optional implementation, the first part provided on the mounting seat is a buckle, and the second part provided on the fourth end of the second folding member is a bayonet structure, and the bayonet structure and the buckle can be engaged and matched. The fourth end of the second folding member serves as a carrier of the bayonet structure, and a structure adapted to the bayonet structure can be provided, for example, a mounting groove is provided on the fourth end of the second folding member, so that the bayonet structure is provided at the mounting groove.

[0072] In an optional implementation, the bayonet structure can be elastically retracted to reduce the stress deformation failure of the bayonet and bayonet structure. The bayonet structure can include a sliding buckle and an elastic member, the sliding buckle is movably mounted on the fourth end of the second folding member, one end of the elastic member is arranged opposite to the sliding buckle, and the other end of the elastic member is arranged opposite to the wall surface of the fourth end of the second folding member, and the elastic member is used to make the sliding buckle elastically retractable; the elastic member is in an extended state, the sliding buckle is in an extended position, and the snap assembly is in a locked state or a separated state; the elastic member is in a compressed state, the sliding buckle is in a retracted position, and the snap assembly is in a critical state.

[0073] During the contact and fastening process between the sliding fastener and the buckle, the sliding fastener can have a larger sliding stroke under the action of the elastic member, and neither the sliding fastener nor the buckle is easily deformed and fails due to stress, so that the reliability and stability of the clasp are higher.

[0074] In an optional implementation, the sliding buckle comprises a sliding part and a first buckle part, the sliding part is slidably mounted on the fourth end of the second folding part, the sliding part has two opposite ends along its sliding direction, the first buckle part is connected to one end of the sliding part, and the elastic part is arranged at the other end of the sliding part; the buckle can be snapped to the first buckle part. The sliding buckle and the elastic part cooperate, and during the contact and snapping process of the buckle and the sliding buckle, the elastic part can make the sliding buckle elastically expand and contract, and the buckle and the sliding buckle are not easily deformed and failed due to stress, and the reliability of the watch buckle is high.

[0075] In a second aspect, an embodiment of the present application provides a clasp, comprising: a first folding piece, a second folding piece, a mounting seat and a connecting assembly; the first folding piece has a first end and a second end opposite to each other, and the first end is fixed to the mounting seat. The second folding piece has a third end and a fourth end opposite to each other, and the second end and the third end are rotatably connected so that the first folding piece and the second folding piece can be closed or opened. The connecting assembly is used to make the mounting seat and the fourth end detachably connected. When the first folding piece and the second folding piece are closed, the mounting seat and the fourth end are connected. When the first folding piece and the second folding piece are opened, the mounting seat and the fourth end are separated.

[0076] The clasp provided in the embodiment of the present application has one end of the first folding member fixed on the mounting seat, the other end of the first folding member is rotatably connected to one end of the second folding member, and the other end of the second folding member is connected to the mounting seat through a connecting component. The clasp can adjust the use length of the fixing strap to adapt to the user's wrist, and connect the first fixing strap and the second fixing strap to bind the wearable device to the user's wrist. When the wearable device is not in use, the clasp can be unlocked to loosen the first fixing strap and the second fixing strap to achieve the loosening of the wearable device.

[0077] In an optional implementation, the connection component is a magnetic attraction component, and the magnetic attraction component includes a first magnetic member disposed on the mounting seat, and a second magnetic member disposed on the fourth end. The first magnetic member and the second magnetic member can be magnetically attracted. One of the first magnetic member and the second magnetic member is a magnet, and the other is a magnetic conductive member. When the first folding member and the second folding member are closed, the first magnetic member and the second magnetic member are magnetically matched. When the first folding member and the second folding member are opened, the first magnetic member and the second magnetic member are separated.

[0078] In a third aspect, an embodiment of the present application provides a watch strap, comprising a first fixing strap, a second fixing strap, and the above-mentioned buckle. One end of the first fixing strap is rotatably connected to the mounting seat. The second fixing strap is detachably mounted on the second folding member. When the second fixing strap is mounted on the second folding member and the first folding member and the second folding member are closed, the first folding member and the second folding member may be located on the inner side of the first fixing strap, or the first folding member and the second folding member may be located on the inner side of the second fixing strap.

[0079] The watch strap provided in the embodiment of the present application can realize a detachable connection between the first fixing strap and the second fixing strap through the watch buckle. The mounting seat of the watch buckle is connected to one end of the first fixing strap. When the second fixing strap is installed on the second folding piece, the first folding piece and the second folding piece are kept closed by the snap assembly, and the first folding piece and the second folding piece are located on the inner side of the first fixing strap or the inner side of the second fixing strap, so that the first fixing strap and the second fixing strap are connected and the use length of the fixing strap is limited. When the second fixing strap is detached from the second folding piece, the first fixing strap and the second fixing strap are separated.

[0080] In an optional implementation, a spring ear can be provided between one end of the first fixing belt and the mounting seat, so that the mounting seat is rotatably connected to the first fixing belt. The mounting seat has a connecting ear, which is convenient for the spring ear to be inserted into the first fixing belt, and the end of the spring ear is connected to the connecting ear, so that the mounting seat is rotatably connected to the first fixing belt.

[0081] In an optional implementation, the fourth end of the second folding member has a positioning ring, the middle of the second folding member has a snap-on portion, the second fixing belt has a plurality of snap-on holes arranged along the extension direction of the second fixing belt, the free end of the second fixing belt can be inserted into the positioning ring, and the snap-on portion can be snap-on into one of the snap-on holes, so that the middle of the second fixing belt is limited on the second folding member, and the use length of the fixing belt is limited.

[0082] In an optional implementation, the first fixing belt has a plurality of snap-in holes arranged along the extension direction of the first fixing belt, and the second fixing belt has a plurality of snap-in holes arranged along the extension direction of the second fixing belt. The plurality of snap-in holes can achieve a ventilation effect and improve the user experience of the wearable device.

[0083] In an optional implementation, the mounting seat of the clasp is connected to one end of the first fixing strap, and the first folding piece and the second folding piece of the clasp are located inside the mounting seat. When the first fixing strap and the second fixing strap are connected through the clasp, the first folding piece and the second folding piece are closed and located inside the first fixing strap, and the free end of the second fixing strap is located inside the first fixing strap. This solution has a simple structure and does not require a limiting ring to be provided on the first strap, and the free end of the second fixing strap passes through the limiting ring.

[0084] In an optional implementation, the mounting seat of the clasp is connected to one end of the first fixing strap, and the first folding piece and the second folding piece of the clasp are located outside the mounting seat. When the first fixing strap and the second fixing strap are connected through the clasp, the first folding piece and the second folding piece are closed and located inside the second fixing strap, and the free end of the second fixing strap is located outside the first fixing strap. A limiting ring can be provided on the first strap, so that the free end of the second fixing strap passes through the limiting ring, so as to avoid the free end of the second fixing strap being too long and causing a bad user experience.

[0085] In a fourth aspect, an embodiment of the present application provides a wearable device, including a device body and the above-mentioned strap, wherein one end of the first fixing strap away from the mounting seat is connected to the device body, and one end of the second fixing strap is connected to the device body.

[0086] The wearable device provided in the embodiment of the present application can adjust the length of the fixing strap to fit the user's wrist through the buckle when the wearable device is in use, and connect the first fixing strap and the second fixing strap to bind the wearable device to the user's wrist. When the wearable device is not in use, the buckle can be unlocked to loosen the first fixing strap and the second fixing strap to loosen the wearable device.

[0087] In an optional implementation, a detection module for detecting a user's physiological index is also included, and the detection module can be arranged on the device body or the strap. The detection module can be a blood pressure detection module, an optical plethysmography sensor, an electrocardiogram sensor, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] Figure 1 A schematic diagram of the structure of a wearable device provided in an embodiment of the present application;

[0089] Figure 2 for Figure 1 A schematic diagram of the structure of the wearable device when the first strap and the second strap are not connected;

[0090] Figure 3 for Figure 1 A schematic diagram of the structure of the wearable device when the first strap and the second strap are connected;

[0091] Figure 4A schematic diagram of the structure of a wearable device provided by another embodiment of the present application when a first strap and a second strap are not connected;

[0092] Figure 5 for Figure 4 A schematic diagram of the structure of the wearable device when the first strap and the second strap are connected;

[0093] Figure 6 An exploded view of a clasp provided in an embodiment of the present application;

[0094] Figure 7 for Figure 6 Another exploded view of the buckle;

[0095] Figure 8 for Figure 6 Assembly drawing of the mounting seat and bayonet structure in the clasp;

[0096] Fig. 9 For Figure 8 An assembly diagram of installing the first folding member on the mounting seat;

[0097] Fig.10 for Figure 6 An assembly diagram of the clasp when the first folding piece and the second folding piece are closed;

[0098] Fig.11 for Fig.10 Another view of the assembly of the clasp;

[0099] Fig.12 for Fig.10 A schematic diagram of the structure of the clasp when the first folding piece and the second folding piece are opened;

[0100] Fig.13 An assembly diagram of a clasp provided by another embodiment of the present application when the first folding piece and the second folding piece are closed;

[0101] Fig.14 An assembly diagram of a clasp provided by another embodiment of the present application when the first folding piece and the second folding piece are closed;

[0102] Fig.15 for Fig.11 A cross-sectional view of the watch buckle along line AA, with the first folding piece and the second folding piece closed, and the snap assembly in a locked state;

[0103] Fig.16 for Fig.12 A cross-sectional view of the watch buckle along line BB, with the first folding piece and the second folding piece opened and the snap assembly in a locked state;

[0104] Fig.17 for Fig.11 A cross-sectional view of the clasp when the snap assembly is in a critical state;

[0105] Fig.18 An exploded view of a clasp provided in another embodiment of the present application;

[0106] Fig.19 for Fig.18 Assembly drawing of the mounting seat and bayonet structure in the clasp;

[0107] Fig. 20 For Fig.19 An assembly diagram of installing the first folding member on the mounting seat;

[0108] Fig.21 for Fig.18 An assembly diagram of the clasp when the first folding piece and the second folding piece are closed;

[0109] Fig. 22 for Fig.21 Another view of the assembly of the clasp;

[0110] Fig.23 for Fig.21 A schematic diagram of the structure of the clasp when the first folding piece and the second folding piece are opened;

[0111] Fig.24 for Fig. 22 A partial cross-sectional view of the clasp along line CC, with the first folding piece and the second folding piece closed, and the snap assembly in a locked state;

[0112] Fig.25 for Fig.23 A partial cross-sectional view of the watch buckle along line DD, with the first folding piece and the second folding piece opened and the snap assembly in a locked state;

[0113] Fig.26 for Fig. 22 A partial cross-sectional view of a watch buckle when the buckle assembly is in a critical state;

[0114] Fig. 27 An exploded view of a clasp provided in another embodiment of the present application;

[0115] Fig.28 (a) to (d) are Fig. 27 A schematic diagram of a structure of a bent spring piece in a snap-on assembly of a clasp, the snap-on assembly being in a locked state, the snap-on assembly being in a separated state, and the snap-on assembly being in a critical state;

[0116] Fig.29 for Fig. 27 Assembly drawing of the mounting seat and the bent spring in the clasp;

[0117] Fig.30 For Fig.29 An assembly diagram of installing the first folding member on the mounting seat;

[0118] Fig.31 for Fig. 27 An assembly diagram of the clasp when the first folding piece and the second folding piece are closed;

[0119] Fig.32 for Fig.31 Another view of the assembly of the clasp;

[0120] Fig.33 for Fig.31 A schematic diagram of the structure of the clasp when the first folding piece and the second folding piece are opened;

[0121] Fig.34 for Fig.32 A cross-sectional view of the watch buckle along line EE, with the first folding piece and the second folding piece closed, and the snap assembly in a locked state;

[0122] Fig.35 An exploded view of a clasp provided in another embodiment of the present application;

[0123] Fig.36 (a) to (d) are Fig.35 A schematic diagram of a structure of a bent spring piece in a snap-on assembly of a clasp, the snap-on assembly being in a locked state, the snap-on assembly being in a separated state, and the snap-on assembly being in a critical state;

[0124] Fig.37 for Fig.35 Assembly drawing of the mounting seat and the bent spring in the clasp;

[0125] Fig.38 For Fig.37 An assembly diagram of installing the first folding member on the mounting seat;

[0126] Fig.39 for Fig.35 An assembly diagram of the clasp when the first folding piece and the second folding piece are closed;

[0127] Fig.40 for Fig.39 Another view of the assembly of the clasp;

[0128] Fig.41 for Fig.39 A schematic diagram of the structure of the clasp when the first folding piece and the second folding piece are opened;

[0129] Fig.42 for Fig.40 A cross-sectional view of the clasp along line FF, with the first folding piece and the second folding piece closed and the snap-on assembly in a locked state.

[0130] Description of reference numerals:

[0131] 100-buckle;

[0132] 110-first folding member; 110a-first end; 110b-second end; 111-first arc-shaped plate; 112-pin shaft; 112a-axial direction of the pin shaft; 113-cover; 1131-avoidance area; 1132-external convex structure;

[0133] 120-second folding member; 120a-third end; 120b-fourth end; 121-buckle; 121a-first guide surface; 121b-second guide surface; 121c-third guide surface; 121d-fourth guide surface; 121e-fifth guide surface; 1211-columnar portion; 1211a-width of the columnar portion; 1212-head; 1212a-width of the head; 122-second arc plate; 123-positioning ring; 124-clamping portion;

[0134] 130-mounting seat; 130a-length direction of the mounting seat; 131-mounting slot; 132-slot; 133-first retaining wall; 134-opening; 135-partition wall; 136-mounting hole; 137-second retaining wall; 138-connecting ear; 139-concave structure;

[0135] 140- snap assembly; 140a-first part; 140b-second part; 140c-bayonet structure; 141-sliding buckle; 141a-moving direction of the sliding buckle; 1411-sliding part; 1412-first buckle; 1413-first limiting part; 1414-button part; 1415-accommodating groove; 1416-second buckle; 1417-second limiting part; 142-elastic member; 143-bending elastic member sheet; 1431-card slot; 1432-mouth; 1432a-first width; 1432b-second width; 143a-first transverse arm; 143b-first inclined arm; 143c-second inclined arm; 143d-second transverse arm; 143e-third inclined arm; 143f-fourth inclined arm; 143g-third transverse arm; 143h-sheet portion; 143i-first cantilever; 143j-second cantilever;

[0136] 200-first fixing belt; 200a-limiting ring; 201-clamping hole; 300-second fixing belt; 300a-free end; 301-clamping hole;

[0137] 400-watch strap; 500-device body; 1000-wearable device. DETAILED DESCRIPTION

[0138] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of combining the implementation mode as an application introduction is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0139] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0140] It should be understood that in the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0141] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0142] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0143] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0144] In the related art wearable device, a fixing strap is connected to each end of the device body, and the two fixing straps can be connected and disassembled by a clasp. The clasp may include two folding parts, and the two folding parts are rotatably connected so that the two folding parts can be closed or opened, and the two folding parts are clamped together by a first fastener and a second fastener. A first fastener is provided on one of the folding parts, and a second fastener is provided on the other folding part. The first fastener and the second fastener are hard interference structures. When the first fastener and the second fastener are fastened and assembled, the elastic deformation of the two is relatively small. During the production process, it is difficult to adjust the fastener and the production cost is high. During use, the first fastener and the second fastener are easily deformed and fail and are difficult to repair.

[0145] See also Figures 1 to 5 The embodiment of the present application provides a wearable device 1000, including a device body 500 and a strap 400, the strap 400 includes a first fixing strap 200, a second fixing strap 300 and a buckle 100, one end of the first fixing strap 200 is connected to the device body 500, one end of the second fixing strap 300 is connected to the device body 500, the buckle 100 is arranged on the first fixing strap 200, and the buckle 100 is used to make the first fixing strap 200 and the second fixing strap 300 detachably connected.

[0146] The wearable device 1000 may be a watch, a bracelet, etc. When the wearable device 1000 is a watch, the device body 500 is a dial, and opposite ends of the dial are respectively connected to the first fixing belt 200 and the second fixing belt 300. The dial may include a housing and a display screen provided on the housing.

[0147] When the wearable device 1000 is in use, the length of the fixing strap can be adjusted through the clasp 100 to fit the user's wrist, and the first fixing strap 200 and the second fixing strap 300 are connected to bind the wearable device 1000 to the user's wrist. When the wearable device 1000 is not in use, the clasp 100 can be unlocked to loosen the first fixing strap 200 and the second fixing strap 300 to loosen the wearable device 1000.

[0148] In some embodiments, a detection module for detecting physiological indicators of the user is also included, and the detection module can be arranged on the device body 500 or the strap 400. The detection module can be a blood pressure detection module, an optical plethysmography sensor, an electrocardiogram sensor, etc.

[0149] The blood pressure detection module may include an airbag and a pressure sensor. When in use, the airbag is located outside the wrist and gradually inflated. When the pressure inside the airbag reaches a threshold, the airbag blocks the blood flow in the wrist artery. Then the airbag gradually deflates, and the pressure sensor continuously detects the pressure inside the airbag. The blood pressure can be calculated from the obtained pressure signal. The airbag in the blood pressure detection module can be located on the inner side of the strap 400. When the wearable device 1000 is bound to the user's wrist, the airbag is located outside the wrist.

[0150] The photoplethysmography (PPG) sensor uses a photoelectric sensor to detect the intensity of reflected light after absorption by human blood and tissues, and describes the changes in blood vessel volume during the cardiac cycle. The heart rate and blood oxygen can be obtained from the obtained pulse waveform. The photoplethysmography sensor can be arranged on the back of the device body 500.

[0151] An electrocardiogram (ECG) sensor uses electrodes in contact with human skin to record the timing and strength of electrical signals that cause the heart to beat. The ECG sensor may be disposed on the back of the device body 500 .

[0152] See also Figures 6 to 10 The embodiment of the present application provides a clasp 100, comprising: a first folding member 110, a second folding member 120, a mounting seat 130 and a connecting assembly; the first folding member 110 has a first end 110a and a second end 110b opposite to each other, and the first end 110a is fixed to the mounting seat 130. The second folding member 120 has a third end 120a and a fourth end 120b opposite to each other, and the second end 110b and the third end 120a are rotatably connected to allow the first folding member 110 and the second folding member 120 to be closed or opened. The connecting assembly is used to make the mounting seat 130 and the fourth end 120b detachably connected. Fig.11 When the first folding member 110 and the second folding member 120 are closed, the mounting seat 130 and the fourth end 120b are connected. Fig.12When the first folder 110 and the second folder 120 are opened, the mounting seat 130 and the fourth end 120 b are separated.

[0153] When setting the connection component, the connection component can be a magnetic component, a snap-on component 140, or the like. Exemplarily, the connection component is a magnetic component, and the magnetic component includes a first magnetic component provided on the mounting base 130, and a second magnetic component provided on the fourth end 120b. The first magnetic component and the second magnetic component can be magnetically adsorbed. One of the first magnetic component and the second magnetic component is a magnet, and the other is a magnetic conductive component (such as stainless steel, silicon steel). When the first folding component 110 and the second folding component 120 are closed, the first magnetic component and the second magnetic component are magnetically matched. When the first folding component 110 and the second folding component 120 are opened, the first magnetic component and the second magnetic component are separated.

[0154] See also Figures 6 to 10 The embodiment of the present application provides a clasp 100, comprising: a first folding piece 110, a second folding piece 120, a mounting seat 130 and a snap assembly 140. The first folding piece 110 has a first end 110a and a second end 110b opposite to each other, and the first end 110a is fixed to the mounting seat 130. The second folding piece 120 has a third end 120a and a fourth end 120b opposite to each other, and the second end 110b and the third end 120a are rotatably connected so that the first folding piece 110 and the second folding piece 120 can be closed or opened. The snap assembly 140 includes a first portion 140a disposed on the mounting seat 130, and a second portion 140b disposed on the fourth end 120b. Fig.10 , Fig.11 When the first folding member 110 and the second folding member 120 are closed, the first part 140a and the second part 140b of the snap assembly 140 are locked. Fig.12 When the first folding member 110 and the second folding member 120 are opened, the first portion 140a and the second portion 140b of the snap assembly 140 are separated.

[0155] The second end 110b of the first folding member 110 and the third end 120a of the second folding member 120 are rotatably connected, and the first folding member 110 and the second folding member 120 form a butterfly buckle, and the first folding member 110 and the second folding member 120 can be closed or opened. The first folding member 110 and the second folding member 120 are closed, which means that the two are close to each other, and the angle between the two can be 0° or close to 0°. The first folding member 110 and the second folding member 120 are opened, which means that the two are open to each other, and a certain angle is formed between them.

[0156] The first part 140a and the second part 140b of the snap assembly 140 can be locked or separated. When the first part 140a and the second part 140b are locked, the first folding member 110 and the second folding member 120 remain closed and cannot rotate. When the first part 140a and the second part 140b are separated, the first folding member 110 and the second folding member 120 can rotate relative to each other to change the angle between them.

[0157] In the clasp 100 provided in the embodiment of the present application, one end of the first folding member 110 is fixed on the mounting seat 130, the other end of the first folding member 110 is rotatably connected to one end of the second folding member 120, and the other end of the second folding member 120 is connected to the mounting seat 130 via a snap assembly 140. The first part 140a and the second part 140b in the snap assembly 140 can be locked or separated, so that the first folding member 110 and the second folding member 120 can remain closed or open. Compared with the hard interference structure of the first fastener and the second fastener used in the related art, the snap assembly 140 of this embodiment has a certain elasticity. During the production and use process, one of the first part 140a and the second part 140b has a large elastic stroke or elastic deformation amount, and the first part 140a and the second part 140b are not easy to deform and fail, which can improve the reliability and stability of the clasp 100.

[0158] See also Figures 1 to 5 The embodiment of the present application provides a watch strap 400, which includes a first fixing strap 200, a second fixing strap 300 and a buckle 100. One end of the first fixing strap 200 is rotatably connected to the mounting seat 130. The second fixing strap 300 is detachably mounted on the second folding member 120. When the second fixing strap 300 is mounted on the second folding member 120 and the first folding member 110 and the second folding member 120 are closed, the first folding member 110 and the second folding member 120 can be located on the inner side of the first fixing strap 200 (such as Figure 3 Alternatively, the first folding member 110 and the second folding member 120 may be located on the inner side of the second fixing belt 300 (as shown in FIG. Figure 5 shown).

[0159] The inner side of the first fixing belt 200 is the side of the first fixing belt 200 facing the wrist when the wearable device 1000 is worn. The inner side of the second fixing belt 300 is the side of the second fixing belt 300 facing the wrist when the wearable device 1000 is worn.

[0160] A spring ear may be provided between one end of the first fixing belt 200 and the mounting seat 130, so that the mounting seat 130 is rotatably connected to the first fixing belt 200. The mounting seat 130 has a connecting ear 138, which is convenient for the spring ear to be inserted into the first fixing belt 200, and the end of the spring ear is connected to the connecting ear 138, so that the mounting seat 130 is rotatably connected to the first fixing belt 200.

[0161] The strap 400 provided in the embodiment of the present application can realize a detachable connection between the first fixing strap 200 and the second fixing strap 300 through the clasp 100. The mounting seat 130 of the clasp 100 is connected to one end of the first fixing strap 200. When the second fixing strap 300 is installed on the second folding member 120, the first folding member 110 and the second folding member 120 are kept closed by the snap assembly 140. The first folding member 110 and the second folding member 120 are located on the inner side of the first fixing strap 200 or the inner side of the second fixing strap 300, so that the first fixing strap 200 and the second fixing strap 300 are connected and the use length of the fixing strap is limited. When the second fixing strap 300 is detached from the second folding member 120, the first fixing strap 200 and the second fixing strap 300 are separated.

[0162] When the strap 400 is applied to the wearable device 1000, one end of the first fixing strap 200 away from the mounting seat 130 is connected to the device body 500, and one end of the second fixing strap 300 is connected to the device body 500. The first fixing strap 200 and the second fixing strap 300 are connected by the buckle 100, so that the first fixing strap 200 and the second fixing strap 300 are bound to the user's wrist, so that the wearable device 1000 can be worn.

[0163] In order to limit the middle portion of the second fixing belt 300 on the second folding member 120 and to limit the use length of the fixing belt, in some embodiments, refer to Figure 1 , Figure 6 , Figure 7 , Fig.10 The fourth end 120b of the second folding member 120 has a positioning ring 123, and the positioning ring 123 is used for the fixing belt to pass through; the middle part of the second folding member 120 has a snap-fitting portion 124, and the snap-fitting portion 124 is used to snap-fit ​​with the snap-fitting hole 301 of the fixing belt.

[0164] The second fixing belt 300 has a plurality of engaging holes 301 arranged along the extending direction of the second fixing belt 300 . The free end 300 a of the second fixing belt 300 can be inserted into the positioning ring 123 , and the engaging portion 124 can be engaged with one of the engaging holes 301 .

[0165] When the wearable device 1000 is used, the first folding member 110 and the second folding member 120 are opened, and the free end 300a of the second fixing belt 300 is first passed through the positioning ring 123 of the second folding member 120, so that the middle part of the second fixing belt 300 is limited on the second folding member 120 along its thickness direction, and the second fixing belt 300 can move forward and backward relative to the positioning ring 123. Then, the clamping part 124 is clamped with one of the clamping holes 301 of the second fixing belt 300, and the use length of the fixing belt is limited to match the size of the user's wrist. Finally, the snap assembly 140 is locked to keep the first folding member 110 and the second folding member 120 closed, so as to realize the connection between the first fixing belt 200 and the second fixing belt 300, and the wearable device 1000 is bound to the user's wrist through the first fixing belt 200 and the second fixing belt 300.

[0166] When removing the wearable device 1000 from the user's hand, the snap assembly 140 is first disassembled to switch the first folding member 110 and the second folding member 120 from closed to open, and the wearable device 1000 can be removed from the user's hand. When separating the first fixing belt 200 and the second fixing belt 300, the clamping portion 124 is separated from the clamping hole 301 of the second fixing belt 300, and then the second fixing belt 300 is separated from the positioning ring 123, so that the first fixing belt 200 and the second fixing belt 300 are separated.

[0167] In order to improve the ventilation effect of the fixing belt and achieve a consistent appearance of the two fixing belts, in some embodiments, refer to Figure 1 The first fixing belt 200 has a plurality of snap-in holes 201 arranged along the extension direction of the first fixing belt 200, and the second fixing belt 300 has a plurality of snap-in holes 301 arranged along the extension direction of the second fixing belt 300. The plurality of snap-in holes can achieve a breathable effect, thereby improving the user experience of the wearable device 1000. The two fixing belts have similar snap-in holes, so that the two fixing belts have a similar appearance.

[0168] There are multiple optional implementations when setting the first fixing strap 200, the second fixing strap 300 and the buckle 100. Two implementations are given as examples below.

[0169] First implementation of the first fixing belt 200, the second fixing belt 300 and the buckle 100: Figure 1 , Figure 2 The mounting seat 130 of the clasp 100 is connected to one end of the first fixing band 200, and the first folding member 110 and the second folding member 120 of the clasp 100 are located on the inner side of the mounting seat 130. The inner side of the mounting seat 130 is the side of the mounting seat 130 facing the wrist when the wearable device 1000 is worn. Figure 3When the first fixing strap 200 and the second fixing strap 300 are connected by the buckle 100, the first folding member 110 and the second folding member 120 are closed and located inside the first fixing strap 200, and the free end 300a of the second fixing strap 300 is located inside the first fixing strap 200. This solution has a simple structure and does not require a limiting ring to be provided on the first strap 400 and the free end 300a of the second fixing strap 300 to pass through the limiting ring.

[0170] Second implementation method of the first fixing belt 200, the second fixing belt 300 and the buckle 100: Figure 4 The mounting seat 130 of the clasp 100 is connected to one end of the first fixing belt 200, and the first folding member 110 and the second folding member 120 of the clasp 100 are located on the outside of the mounting seat 130. The outside of the mounting seat 130 is the side of the mounting seat 130 that faces away from the wrist when the wearable device 1000 is worn. Figure 5 When the first fixing strap 200 and the second fixing strap 300 are connected by the buckle 100, the first folding member 110 and the second folding member 120 are closed and located inside the second fixing strap 300, and the free end 300a of the second fixing strap 300 is located outside the first fixing strap 200. A limiting ring 200a may be provided on the first strap 400, so that the free end 300a of the second fixing strap 300 passes through the limiting ring 200a, thereby preventing the free end 300a of the second fixing strap 300 from being too long and causing a bad user experience.

[0171] In order to make the first folding member 110 and the second folding member 120 thin and not easily deformed, in some embodiments, refer to Figure 6 , Figure 7 The first folding member 110 includes a first curved plate 111, and the second folding member 120 includes a second curved plate 122; the first curved plate 111 has two opposite ends, namely a first end 110a and a second end 110b, and the second curved plate 122 has two opposite ends, namely a third end 120a and a fourth end 120b. Fig.10 , Fig.11 The second end 110b and the third end 120a are rotatably connected via a pin shaft 112. When the first folding member 110 and the second folding member 120 are closed, the first arc plate 111 and the second arc plate 122 are arranged along the direction of the pin shaft 112, and the first arc plate 111 and the second arc plate 122 extend in the same direction.

[0172] The first folding member 110 and the second folding member 120 are respectively configured as a first curved plate 111 and a second curved plate 122, Figure 3, so that the closed first folding member 110 and the second folding member 120 form an arc structure and are maintained between the first fixing belt 200 and the second fixing belt 300, which has little impact on the bending shape of the first fixing belt 200 and the second fixing belt 300 and has a better appearance effect.

[0173] The first arc plate 111 and the second arc plate 122 are arranged along the direction of the pin shaft 112 (i.e., the axial direction 112a of the pin shaft 112), and the extension directions of the first arc plate 111 and the second arc plate 122 are the same. Under the same total thickness, the thickness of the first arc plate 111 and the second arc plate 122 can be increased, thereby increasing the rigidity of the two and making them less likely to be deformed by force, thereby enhancing the user experience of the opening and closing operations of the first folding member 110 and the second folding member 120.

[0174] The first arc plate 111 and the second arc plate 122 are rotatably connected via a pin shaft 112. The ends of the first arc plate 111 and the ends of the second arc plate 122 may be provided with connecting holes respectively, and the pin shaft 112 is connected to the connecting holes of the two, so that the first arc plate 111 and the second arc plate 122 can both rotate around the pin shaft 112.

[0175] There are multiple optional implementations when configuring the first curved plate 111 and the second curved plate 122. Two implementations are exemplarily given below.

[0176] First implementation of the first curved plate 111 and the second curved plate 122: see Figure 6 , Fig.10 There are multiple first arc-shaped plates 111, and the multiple first arc-shaped plates 111 are arranged at intervals along the direction of the pin shaft 112 (that is, the axial direction 112a of the pin shaft 112). When the first folding member 110 and the second folding member 120 are closed, at least one second arc-shaped plate 122 is located between the multiple first arc-shaped plates 111.

[0177] The plurality of first curved plates 111 are arranged at intervals, and at least one second curved plate 122 is disposed between the plurality of first curved plates 111, so that the rotational connection between the first curved plates 111 and the second curved plates 122 is stable and reliable. One or more second curved plates 122 may be disposed between two adjacent first curved plates 111.

[0178] For example, see Figure 6 , Fig.10, two first curved plates 111 are arranged at intervals along the direction of the pin shaft 112, and a second curved plate 122 is arranged between the two first curved plates 111. The rotational connection between the first curved plate 111 and the second curved plate 122 is stable and reliable. When the first curved plate 111 and the second curved plate 122 are closed, the two first curved plates 111 and the second curved plate 122 form an arc structure with a simple structure and a good appearance. The position of the snap assembly 140 can be set corresponding to the fourth end 120b of the second curved plate 122, and can also be set corresponding to the first end 110a of the first curved plate 111.

[0179] For example, see Fig.13 , two first curved plates 111 and two second curved plates 122 are configured, and the first curved plates 111 and the second curved plates 122 are arranged alternately in sequence along the direction of the pin shaft 112. The rotational connection between the first curved plates 111 and the second curved plates 122 is stable and reliable. When the first curved plates 111 and the second curved plates 122 are closed, the two first curved plates 111 and the second curved plates 122 form an arc structure with a simple structure and a good appearance. The position of the snap assembly 140 can be set corresponding to the fourth end 120b of one of the second curved plates 122, and can also be set corresponding to the first end 110a of the first curved plate 111.

[0180] When multiple snap-in assemblies 140 are set, one snap-in assembly 140 can be set corresponding to the fourth end 120b of the second curved plate 122 near the middle position, and another snap-in assembly 140 can be set corresponding to the first end 110a of the first curved plate 111 near the middle position. Multiple snap-in assemblies 140 can make the connection between the second folding member 120 and the mounting seat 130 stable and reliable.

[0181] Second implementation of the first curved plate 111 and the second curved plate 122: see Fig.14 A first curved plate 111 and a second curved plate 122 are arranged along the direction of the pin shaft 112 (i.e., the axial direction 112a of the pin shaft 112). The rotational connection between the first curved plate 111 and the second curved plate 122 is stable and reliable. When the first curved plate 111 and the second curved plate 122 are closed, the first curved plate 111 and the second curved plate 122 form an arc structure with a simple structure and a good appearance. The position of the snap assembly 140 can be set corresponding to the fourth end 120b of the second curved plate 122, and can also be set corresponding to the first end 110a of the first curved plate 111.

[0182] There are multiple optional implementations of the snap assembly 140. The first implementation of the snap assembly 140 is: Figure 6 , Figure 7, the first part 140a is a bayonet structure 140c, the second part 140b is a buckle 121, and the bayonet structure 140c and the buckle 121 can be snap-fitted. The bayonet structure 140c has a large elastic stroke or elastic deformation. The implementation method of the second snap assembly 140 is: the first part 140a is the buckle 121, the second part 140b is the bayonet structure 140c, and the bayonet structure 140c and the buckle 121 can be snap-fitted. The bayonet structure 140c has a large elastic stroke or elastic deformation. The following mainly takes the first snap assembly 140 as an example for specific description.

[0183] In order to facilitate fixing the first end 110a of the first folding member 110 to the mounting seat 130, in some embodiments, refer to Figures 6 to 9 , Fig.15 The first end 110a of the first folding member 110 has a cover portion 113, the cover portion 113 is fixed on the mounting seat 130, the cover portion 113 and the mounting seat 130 form a mounting groove 131, the bayonet structure 140c is arranged at the mounting groove 131, and the cover portion 113 has an avoidance area 1131 for partially exposing the bayonet structure 140c.

[0184] The first end 110a of the first folding member 110 has a cover 113, and the bayonet structure 140c is arranged in the mounting seat 130 and the cover 113 to form a mounting groove 131, so that the bayonet structure 140c is conveniently arranged on the mounting seat 130, and the mounting seat 130 and the cover 113 can provide protection for the bayonet structure 140c. The cover 113 is fixed on the mounting seat 130, so that the first end 110a of the first folding member 110 is fixed on the mounting seat 130. The bayonet structure 140c is partially exposed through the avoidance area 1131 of the cover 113, so that the buckle 121 and the bayonet structure 140c are conveniently engaged and matched. The avoidance area 1131 can be a groove or a hole.

[0185] The mounting groove 131 may be formed on the mounting seat 130 , and the cover 113 covers the notch 132 of the mounting groove 131 . Alternatively, the mounting groove 131 may be formed on the cover 113 , and the mounting seat 130 covers the notch 132 of the mounting groove 131 .

[0186] Exemplarily, the mounting seat 130 may be roughly in the shape of a rectangular parallelepiped, and the length direction 130a of the mounting seat 130 and the width direction of the fixing belt may be parallel. The cover 113 may be roughly in the shape of a rectangular plate. The cover 113 is disposed on the mounting seat 130, and the stacked mounting seat 130 and the cover 113 have a small thickness and a compact structure. In addition, the mounting seat 130 and the cover 113 may also be set to other shapes.

[0187] When the cover 113 and the mounting seat 130 are assembled, the cover 113 and the mounting seat 130 may be assembled by fasteners (such as screws), snaps, bonding, or the like.

[0188] For example, see Figure 6 , Figure 7 The cover 113 and the mounting seat 130 are connected by fasteners (such as screws), and the fasteners are arranged along the stacking direction of the cover 113 and the mounting seat 130. The fasteners can be threadedly connected to the mounting seat 130 after passing through the cover 113, or threadedly connected to the cover 113 after passing through the mounting seat 130.

[0189] In order to ensure reliable connection between the cover 113 and the mounting base 130 and reduce the stacking thickness of the cover 113 and the mounting base 130, in some embodiments, refer to Figure 6 , Figure 7 The cover 113 and the mounting seat 130 are connected by fasteners (such as screws). A convex structure 1132 may be provided on the side of the cover 113 facing the mounting seat 130, and a concave structure 139 may be provided on the side of the mounting seat 130 facing the cover 113. The concave structure 139 and the convex structure 1132 are adapted to each other. For example, when the convex structure 1132 is in the shape of a convex frame, the concave structure 139 is a frame-shaped groove; or, when the convex structure 1132 is in the shape of a convex rectangle, the concave structure 139 is a rectangular groove. Aligning and assembling the convex structure 1132 on the concave structure 139 can increase the effective length of the fastener, so that the cover 113 and the mounting seat 130 are reliably connected, and the total thickness of the cover 113 and the mounting seat 130 can be reduced.

[0190] When setting the bayonet structure 140c, refer to Figures 6 to 8 , elastic expansion can be adopted to reduce the stress deformation failure of the buckle 121 and the bayonet structure 140c. The bayonet structure 140c may include a sliding buckle 141 and an elastic member 142. The sliding buckle 141 is movably mounted on the mounting seat 130. One end of the elastic member 142 is arranged opposite to the sliding buckle 141, and the other end of the elastic member 142 is arranged opposite to the wall surface of the mounting seat 130. The elastic member 142 is used to make the sliding buckle 141 elastically expand and contract. The elastic member 142 is in an extended state, the sliding buckle 141 is in an extended position, and the snap assembly 140 is in a locked state (such as Fig.15 as shown) or separated state (as Fig.16 The elastic member 142 is in a compressed state, the sliding buckle member 141 is in a retracted position, and the snap assembly 140 is in a critical state (as shown). Fig.17 shown).

[0191] A bayonet structure 140c is adopted which is a combination of a sliding buckle 141 and an elastic member 142. During the contact and buckling process between the sliding buckle 141 and the buckle 121, the elastic member 142 can be stretched and deformed, and the sliding buckle 141 can have a larger sliding stroke under the action of the elastic member 142, that is, the bayonet structure 140c has a larger elastic stroke, and the sliding buckle 141 and the buckle 121 are not easily deformed and failed due to stress, so that the reliability and stability of the clasp 100 are higher.

[0192] Combination Fig.15 When the snap assembly 140 is in a locked state, that is, the first portion 140a (bayonet structure 140c) and the second portion 140b (buckle 121) are engaged, the elastic member 142 on the mounting seat 130 stretches to a maximum length, and the stretched elastic member 142 causes the sliding member 141 to extend, and the extended sliding member 141 is in contact with the buckle 121. The first folding member 110 and the second folding member 120 remain closed.

[0193] Combination Fig.16 When the snap assembly 140 is in a separated state, that is, the first part 140a (bayonet structure 140c) and the second part 140b (buckle 121) are separated, the elastic member 142 on the mounting seat 130 stretches to the maximum length, and the stretched elastic member 142 causes the sliding buckle 141 to extend, so that the sliding buckle 141 and the buckle 121 are completely separated. The first folding member 110 and the second folding member 120 remain open.

[0194] Combination Fig.17 The critical state is the intermediate state between the locked state and the separated state. When the snap assembly 140 is in the critical state, the sliding buckle 141 and the buckle 121 are in contact, and the sliding buckle 141 compresses the elastic member 142 on the mounting seat 130 to store energy, and the length of the elastic member 142 becomes smaller. By moving the buckle 121 relative to the mounting seat 130, the buckle 121 and the sliding buckle 141 can be engaged or separated, and the elastic member 142 on the mounting seat 130 can be restored to the maximum length.

[0195] The elastic member 142 may be an elastic structure such as a spring or a spring sheet.

[0196] There are multiple optional implementations when providing the bayonet structure 140c having the sliding buckle 141 and the elastic member 142 , and two implementations are given as examples below.

[0197] A first implementation of the bayonet structure 140c with the sliding buckle 141 and the elastic member 142: Figures 6 to 8The sliding buckle 141 includes a sliding portion 1411 and a first buckle 1412. The sliding portion 1411 is slidably mounted on the mounting seat 130. The sliding portion 1411 has two opposite ends along its sliding direction (i.e., the moving direction 141a of the sliding buckle 141). The first buckle 1412 is connected to one end of the sliding portion 1411, and the elastic member 142 is disposed at the other end of the sliding portion 1411. The buckle 121 can be snapped to the first buckle 1412.

[0198] The sliding buckle member 141 having the sliding portion 1411 and the first buckle portion 1412 can move along a predetermined direction on the mounting seat 130. Fig.16 , the snap assembly 140 is in a separated state, and under the action of the elastic member 142, the first snap portion 1412 extends out of the escape area 1131 of the cover portion 113, and the buckle 121 and the extended first snap portion 1412 are completely separated.

[0199] Combination Fig.17 When the buckle 121 and the first buckle 1412 need to be engaged, the buckle 121 is pushed into the first buckle 1412, and the buckle 121 acts on the first buckle 1412 to shrink the first buckle 1412, the elastic member 142 is compressed and stores energy, and the snap assembly 140 is in a critical state. Fig.15 , continue to push the buckle 121 into the first buckle portion 1412, so that the buckle 121 and the first buckle portion 1412 are engaged with each other, and the elastic member 142 stretches and releases energy to make the first buckle portion 1412 extend, and the snap assembly 140 is in a locked state.

[0200] The snap-fit ​​structure 140c of the sliding buckle 141 and the elastic member 142 can make the sliding buckle 141 elastically expand and contract during the contact and connection process between the buckle 121 and the sliding buckle 141. The snap-fit ​​structure 140c has a large elastic stroke, and the buckle 121 and the sliding buckle 141 are not easily deformed and failed due to stress, and the reliability of the clasp 100 is high.

[0201] In the sliding direction of the sliding portion 1411 (i.e., the moving direction 141a of the sliding buckle 141), the cross-sectional shape of the sliding portion 1411 and the cross-sectional shape of the mounting groove 131 of the mounting seat 130 are adapted, so that the sliding portion 1411 can be slidably mounted on the mounting seat 130 along a predetermined direction. For example, in the sliding direction of the sliding portion 1411, the cross-sectional shapes of the sliding portion 1411 and the cross-sectional shapes of the mounting groove 131 are both rectangular. The sliding portion 1411 can be a rectangular parallelepiped or other shapes. The first buckle 1412 can be sheet-shaped, L-shaped, or other shapes.

[0202] In order to limit the moving range of the sliding portion 1411, in some embodiments, refer to Figure 6 , Figure 8The mounting seat 130 has a first retaining wall 133 , which is used to abut and cooperate with the sliding portion 1411 to limit the sliding portion 1411 ; the first retaining wall 133 has an opening 134 for the first buckle portion 1412 to extend out.

[0203] Combination Fig.15 , Fig.17 When the snap assembly 140 is in a locked state or a separated state, the stretched elastic member 142 acts on the sliding portion 1411, so that the sliding portion 1411 abuts against the first stop wall 133, and the position of the sliding portion 1411 is limited, and the first buckle portion 1412 can extend through the opening 134. The extended first buckle portion 1412 and the buckle 121 can maintain a snap fit or be separated.

[0204] For example, see Figure 6 , Figure 8 The first buckle 1412 includes a first section and a second section, which are L-shaped and connected to each other. The first section is connected to the sliding section 1411, and the second section is used to engage with the buckle 121. The L-shaped first buckle 1412 has good structural strength, which improves the reliability of the first buckle 1412. Under the action of the elastic member 142, the sliding section 1411 is abutted against the first retaining wall 133, the first section is located at the opening 134, and the second section extends out of the opening 134.

[0205] In order to limit the elastic member 142 on the sliding portion 1411, in some embodiments, refer to Figure 6 , Figure 8 , Fig.15 The sliding buckle 141 further includes a first limiting portion 1413 , which is connected to an end of the sliding portion 1411 facing away from the first buckle portion 1412 , and one end of the elastic member 142 is mounted on the first limiting portion 1413 .

[0206] During the compression or extension of the elastic member 142 , one end of the elastic member 142 remains mounted on the first limiting portion 1413 and abuts against the sliding portion 1411 , thereby reducing the possibility of the elastic member 142 detaching from the sliding portion 1411 and improving the reliability of the matching between the sliding buckle 141 and the elastic member 142 .

[0207] Exemplarily, the elastic member 142 is a compression spring. The first limiting portion 1413 can be a columnar structure provided on the sliding portion 1411, and the compression spring is sleeved on the columnar structure. Alternatively, the first limiting portion 1413 can also be a positioning hole provided on the sliding portion 1411, and one end of the compression spring extends into the positioning hole.

[0208] In order to increase the elastic force of the elastic member 142 in the limited space of the mounting seat 130, in some embodiments, refer to Figure 6 , Figure 8A plurality of elastic members 142 are disposed on the sliding portion 1411 , and the mounting seat 130 has a partition wall 135 , and two adjacent elastic members 142 are separated by the partition wall 135 .

[0209] A plurality of short elastic members 142 are arranged side by side on the small-sized mounting seat 130, and the plurality of elastic members 142 cooperate with the sliding portion 1411 to increase the elastic force exerted on the sliding portion 1411. The partition wall 135 on the mounting seat 130 isolates two adjacent elastic members 142 to avoid interference between the two elastic members 142 during use, thereby improving the reliability and stability of the bayonet structure 140c.

[0210] In order to facilitate the buckle 121 to be pushed into the bayonet structure 140c, in some embodiments, refer to Fig.17 The head 1212 of the buckle 121 has a first guide surface 121a. During the process of the first folding member 110 and the second folding member 120 switching from opening to closing, the first guide surface 121a is used to slide in contact with the first buckle portion 1412 to switch the snap assembly 140 from a separated state to a critical state.

[0211] When the snap assembly 140 is pressed to push the buckle 121 into the bayonet structure 140c, the first guide surface 121a of the head 1212 of the buckle 121 and the first buckle portion 1412 are in sliding contact, so that the first buckle portion 1412 is switched from the extended position to the retracted position, and the elastic member 142 is switched from the extended position to the compressed position, that is, the snap assembly 140 is switched from the separated state (such as Fig.16 ) switches to a critical state (as shown Fig.17 As shown in the figure, it is convenient for the user to push the buckle 121 into the bayonet structure 140c. The first guide surface 121a can be an arc surface or other smooth curved surface. Continue to press the snap assembly 140 to push the buckle 121 completely into the bayonet structure 140c, and the elastic member 142 stretches to make the first buckle portion 1412 extend, so that the buckle 121 and the bayonet structure 140c are engaged (as shown in the figure). Fig.15 shown).

[0212] In order to facilitate the buckle 121 to be separated from the bayonet structure 140c, in some embodiments, see Fig.15 The middle part of the buckle 121 has a second guide surface 121b. During the process of the first folding member 110 and the second folding member 120 switching from closed to open, the second guide surface 121b is used to slide in contact with the first buckle portion 1412 to switch the snap assembly 140 from a locked state to a critical state.

[0213] In the process of pulling the buckle 121 apart from the buckle structure 140c, the second guide surface 121b in the middle of the buckle 121 and the first buckle portion 1412 are in sliding contact, so that the first buckle portion 1412 is switched from the extended position to the retracted position, and the elastic member 142 is switched from the extended position to the compressed position, that is, the snap assembly 140 is switched from the locked state (such as Fig.15 ) switches to a critical state (as shown Fig.17 As shown in the figure, it is convenient for the user to separate the buckle 121 from the bayonet structure 140c. The second guide surface 121b can be an arc surface or other smooth curved surface. The buckle 121 is continued to be pulled open to completely separate the buckle 121 from the bayonet structure 140c, and the elastic member 142 stretches to make the first buckle portion 1412 extend, so that the buckle 121 and the bayonet structure 140c are completely separated (as shown in the figure). Fig.16 shown).

[0214] For example, see Figure 7 , Fig.15 The buckle 121 includes a columnar portion 1211 and a head 1212, wherein the head 1212 is connected to one end of the columnar portion 1211, and the other end of the columnar portion 1211 is connected to the fourth end 120b of the second folding member 120. The end of the head 1212 away from the columnar portion 1211 has a first guide surface 121a. The side of the head 1212 facing the columnar portion 1211 has a second guide surface 121b.

[0215] In order to achieve a reliable connection between the buckle 121 and the bayonet structure 140c, in some embodiments, refer to Figure 6 , Figure 8 , Fig.15 , the bayonet structures 140c are arranged in pairs, the first buckle parts 1412 in the pair of bayonet structures 140c are arranged opposite to each other at intervals, and the elastic expansion and contraction directions of the pair of bayonet structures 140c are opposite. The buckle 121 includes a columnar part 1211 and a head 1212, the head 1212 is connected to one end of the columnar part 1211, and the other end of the columnar part 1211 is connected to the fourth end 120b of the second folding member 120. When the first folding member 110 and the second folding member 120 are closed, the columnar part 1211 is located between the pair of first buckle parts 1412, and the head 1212 is set on the pair of first buckle parts 1412.

[0216] Combination Fig.16 When the snap assembly 140 is in the separated state, the elastic members 142 in the two bayonet structures 140c act on the corresponding sliding fasteners 141 respectively, so that the two sliding fasteners 141 are pushed toward each other, and the two sliding fasteners 141 are arranged at an interval.

[0217] Combination Fig.17, push the buckle 121 between the first buckle portions 1412 of the two sliding buckles 141, and the two sliding buckles 141 move in opposite directions. The two sliding buckles 141 act on the corresponding elastic members 142, causing the two elastic members 142 to be compressed in opposite directions, so that the snap assembly 140 is in a critical state.

[0218] Combination Fig.15 , the buckle 121 is pushed between the first buckle parts 1412 of the two sliding buckles 141, and the two elastic members 142 cause the corresponding sliding buckles 141 to move toward each other, so that the two sliding buckles 141 are pushed out, and the two first buckle parts 1412 are against the head 1212 of the buckle 121, so that the snap assembly 140 is in a locked state. The same buckle 121 and the paired bayonet structures 140c are snap-fitted to improve the connection reliability of the snap assembly 140.

[0219] In order to make the bayonet structure 140c occupy a smaller space of the mounting seat 130, in some embodiments, refer to Figure 8 , Fig.15 The moving direction 141a of the slider 141, the expansion and contraction direction of the elastic member 142 and the length direction 130a of the mounting seat 130 are parallel. The length direction 130a of the mounting seat 130 may be the width direction of the fixing belt of the wearable device 1000.

[0220] The moving direction 141a of the slider 141 and the telescopic direction of the elastic member 142 are arranged along the length direction 130a of the mounting seat 130, so that the space in the length direction 130a of the mounting seat 130 is fully utilized and the width dimension of the mounting seat 130 can be made smaller.

[0221] Exemplarily, the mounting seat 130 is substantially in the shape of a cuboid, the length direction 130a of the mounting seat 130 is the width direction of the fixing belt, the width direction of the mounting seat 130 is the extension direction of the fixing belt, and the thickness direction of the mounting seat 130 is the thickness direction of the fixing belt.

[0222] In other embodiments, the moving direction 141a of the sliding fastener 141 is parallel to the extension and contraction direction of the elastic member 142, and the moving direction 141a of the sliding fastener 141 and the length direction 130a of the mounting seat 130 may form a predetermined angle, for example, the moving direction 141a of the sliding fastener 141 and the length direction 130a of the mounting seat 130 are perpendicular.

[0223] A second implementation of the bayonet structure 140c with the sliding buckle 141 and the elastic member 142: Figures 18 to 23The mounting seat 130 has a mounting hole 136; the sliding buckle 141 includes a button portion 1414 and a second buckle portion 1416, the button portion 1414 is slidably mounted on the mounting seat 130 and exposed at the mounting hole 136, the second buckle portion 1416 is connected to the button portion 1414, and the elastic member 142 is disposed on a side of the button portion 1414 away from the mounting hole 136, combined with Fig.24 , the buckle 121 can be buckled into the second buckle portion 1416 .

[0224] The sliding buckle 141 having the button portion 1414 and the second buckle portion 1416 can move along a predetermined direction on the mounting seat 130, and the button portion 1414 can be adjusted in position by pressing. Fig.25 , the snap assembly 140 is in a separated state, the second snap portion 1416 is extended under the action of the elastic member 142, and the button portion 1414 is exposed to the mounting hole 136, and the buckle 121 and the extended second snap portion 1416 are completely separated.

[0225] Combination Fig.26 When the buckle 121 and the second buckle 1416 need to be engaged, the button 1414 is pressed, and the second buckle 1416 follows the button 1414 to retract, the elastic member 142 is compressed and stores energy, and the buckle 121 is pushed into the second buckle 1416, and the snap assembly 140 is in a critical state. Fig.24 , continue to push the buckle 121 into the second buckle portion 1416, so that the buckle 121 and the second buckle portion 1416 are engaged with each other, and the elastic member 142 stretches and releases energy to make the second buckle portion 1416 extend, and the snap assembly 140 is in a locked state.

[0226] Combination Fig.26 When the buckle 121 and the second buckle 1416 need to be separated, the button 1414 is pressed, and the second buckle 1416 follows the button 1414 to retract, the elastic member 142 is compressed and stores energy, and the buckle 121 can separate the second buckle 1416. Fig.25 After the buckle 121 separates the second buckle portion 1416 and releases the button portion 1414 , the elastic member 142 stretches and releases energy, so that the button portion 1414 is reset to the mounting hole 136 , and the second buckle portion 1416 extends out.

[0227] The latch structure 140c that cooperates with the sliding buckle 141 and the elastic member 142, during the contact and engagement process between the buckle 121 and the sliding buckle 141, the elastic member 142 can make the sliding buckle 141 elastically expand and contract, the latch structure 140c has a large elastic stroke, the buckle 121 and the sliding buckle 141 are not easily deformed and fail due to stress, and the reliability of the clasp 100 is high.

[0228] Combination Fig.18 , Fig.19In the sliding direction of the button portion 1414 (i.e., the moving direction 141a of the sliding buckle 141), the cross-sectional shape of the button portion 1414 and the cross-sectional shape of a part of the mounting groove 131 of the mounting seat 130 are adapted, so that the button portion 1414 can be linearly slidably mounted on the mounting seat 130 along a predetermined direction. For example, in the sliding direction of the button portion 1414, the cross-sectional shape of the button portion 1414 and the cross-sectional shape of a part of the mounting groove 131 are both rectangular. The button portion 1414 can be roughly in the shape of a cuboid or other shapes. The second buckle portion 1416 can be in the shape of a strip or other shapes.

[0229] In order to limit the movement range of the button portion 1414, in some embodiments, refer to Fig.18 , Fig.19 The sliding buckle 141 further includes a second limiting portion 1417 , which is connected to the button portion 1414 . The mounting seat 130 has a second retaining wall 137 , which is used to abut and cooperate with the second limiting portion 1417 to limit the button portion 1414 .

[0230] When the snap assembly 140 is in a locked state or a separated state, the stretched elastic member 142 acts on the button portion 1414, so that the second limiting portion 1417 abuts against the second retaining wall 137, limiting the position of the button portion 1414 to prevent the button portion 1414 from being separated from the mounting seat 130. The second limiting portion 1417 can be an outer convex structure provided on the button portion 1414, and the outer convex structure abuts against the second retaining wall 137.

[0231] To facilitate the installation of the elastic member 142, in some embodiments, see Fig.18 , Fig.19 The button portion 1414 has a receiving groove 1415 on one side away from the mounting hole 136, and the elastic member 142 is at least partially disposed in the receiving groove 1415. Providing the elastic member 142 in the receiving groove 1415 of the button portion 1414 can reduce the space occupied by the elastic member 142 on the mounting seat 130, making it easier for one end of the elastic member 142 to be positioned and mounted on the button portion 1414.

[0232] In order to facilitate the buckle 121 to be pushed into the bayonet structure 140c, in some embodiments, refer to Fig.25 , Fig.26 The head 1212 of the buckle 121 has a third guide surface 121c. During the process of the first folding member 110 and the second folding member 120 switching from opening to closing, the third guide surface 121c is used to slide in contact with the second buckle portion 1416, so that the snap assembly 140 is switched from the separated state (such as Fig.25 ) switches to a critical state (as shown Fig.26 shown).

[0233] In the process of pressing the snap assembly 140 to push the buckle 121 into the bayonet structure 140c, the third guide surface 121c of the head 1212 of the buckle 121 and the second buckle portion 1416 are in sliding contact, which can switch the second buckle portion 1416 from the extended position to the retracted position, and the elastic member 142 switches from the extended position to the compressed position, that is, the snap assembly 140 switches from the separated state to the critical state, which is convenient for the user to push the buckle 121 into the bayonet structure 140c. The third guide surface 121c can be an inclined surface, an arc surface or other smooth curved surface. Continue to press the snap assembly 140 to completely push the buckle 121 into the bayonet structure 140c. The elastic member 142 stretches to make the second buckle portion 1416 extend out of the avoidance area 1131 of the cover portion 113, so that the buckle 121 and the bayonet structure 140c are snap-fitted (such as Fig.24 shown).

[0234] In order to arrange the long button portion 1414 on the mounting base 130 in a small space, in some embodiments, see Fig.18 , Fig.19 , Fig. 22 The moving direction 141 a of the sliding fastener 141 is parallel to the extension and contraction direction of the elastic member 142 , and the moving direction 141 a of the sliding fastener 141 is perpendicular to the length direction 130 a of the mounting seat 130 .

[0235] The moving direction 141a of the slider 141 and the telescopic direction of the elastic member 142 are both arranged perpendicular to the length direction 130a of the mounting seat 130, so as to fully utilize the space in the length direction 130a of the mounting seat 130, and the button part 1414 in the slider 141 can be made longer, so that the user can press the button part 1414 more conveniently.

[0236] Exemplarily, the mounting seat 130 is substantially in the shape of a cuboid, the length direction 130a of the mounting seat 130 is the width direction of the fixing belt, the width direction of the mounting seat 130 is the extension direction of the fixing belt, and the thickness direction of the mounting seat 130 is the thickness direction of the fixing belt.

[0237] In other embodiments, the moving direction 141a of the sliding fastener 141 is parallel to the extension and contraction direction of the elastic member 142, and the moving direction 141a of the sliding fastener 141 and the length direction 130a of the mounting seat 130 may form a predetermined angle, for example, the moving direction 141a of the sliding fastener 141 is parallel to the length direction 130a of the mounting seat 130.

[0238] When setting the bayonet structure 140c, refer to Figures 27 to 34 , elastic deformation can be adopted to reduce the stress deformation failure of the buckle 121 and the bayonet structure 140c. The bayonet structure 140c can include a bent spring piece 143 that can be elastically deformed, and the bent spring piece 143 has a slot 1431 with a variable width of the mouth 1432. Fig.28In (b) and (c), when the snap assembly 140 is in a locked state or a separated state, the width of the mouth 1432 of the slot 1431 is the first width 1432a. Fig.28 In (d), when the snap assembly 140 is in a critical state, the width of the mouth 1432 of the slot 1431 is the second width 1432b; the first width 1432a is smaller than the second width 1432b.

[0239] The snap-on structure 140c of the bent spring piece 143 is adopted. During the contact and buckling process between the bent spring piece 143 and the buckle 121, the bent spring piece 143 can be bent and deformed. The bent spring piece 143 can have a large elastic deformation. The bent spring piece 143 and the buckle 121 are not easily deformed and failed due to stress, so that the reliability and stability of the buckle 100 are higher.

[0240] Combination Fig.28 In (b), the snap assembly 140 is in a locked state, that is, the first portion 140a (snap structure 140c) and the second portion 140b (snap 121) are snap-fitted, the width of the slot 1431 of the bent spring piece 143 (i.e., the first width 1432a) is small, and the bent spring piece 143 is in contact with the snap 121. The first folding member 110 and the second folding member 120 remain closed.

[0241] Combination Fig.28 In (c), the snap assembly 140 is in a separated state, that is, the first portion 140a (snag structure 140c) and the second portion 140b (snag 121) are separated, the width of the slot 1431 of the bent spring sheet 143 (i.e., the first width 1432a) is small, and the bent spring sheet 143 and the buckle 121 are completely separated. The first folding member 110 and the second folding member 120 remain open.

[0242] Combination Fig.28 In (d), the critical state is an intermediate state between the locked state and the separated state. When the snap assembly 140 is in the critical state, the width of the mouth 1432 of the slot 1431 of the bent spring sheet 143 (i.e., the second width 1432b) is large, and the snap 121 and the slot 1431 of the bent spring sheet 143 can be engaged or separated by moving the snap 121 relative to the mounting seat 130.

[0243] There are multiple optional implementations when providing the bayonet structure 140c in the form of a bent spring sheet 143, and two implementations are given as examples below.

[0244] The first implementation method of the bayonet structure 140c in the form of a bent spring sheet 143 is as follows: Figures 27 to 34The bent spring piece 143 includes a first transverse arm 143a, a first inclined arm 143b, a second inclined arm 143c, a second transverse arm 143d, a third inclined arm 143e, a fourth inclined arm 143f and a third transverse arm 143g which are connected in sequence. The first transverse arm 143a, the second transverse arm 143d and the third transverse arm 143g are flush and arranged on the mounting seat 130. The first inclined arm 143b and the second inclined arm 143c are arranged in parallel. The third inclined arm 143e and the fourth inclined arm 143f are arranged in parallel. The second inclined arm 143c and the third inclined arm 143e are arranged at intervals. A slot 1431 is formed between the second inclined arm 143c and the third inclined arm 143e. Fig.28 In (b), when the snap assembly 140 is in the locked state, the buckle 121 is located between the second inclined arm 143c and the third inclined arm 143e, and the second inclined arm 143c and the third inclined arm 143e are respectively disposed on opposite sides of the buckle 121.

[0245] The bent spring piece 143 can be formed by bending a sheet spring piece (such as a stainless steel sheet), which is easy to manufacture. Fig.28 In (c), in the initial state of the bent spring piece 143, the second inclined arm 143c, the third inclined arm 143e and the second transverse arm 143d are arranged roughly in a triangle, and the end of the second inclined arm 143c away from the second transverse arm 143d and the end of the third inclined arm 143e away from the second transverse arm 143d are arranged close to each other, and the width of the mouth 1432 of the slot 1431 (i.e., the first width 1432a) is small. Fig.28 In (d), when the buckle 121 is just pushed into the slot 1431 of the bent spring sheet 143, the buckle 121 acts on the second inclined arm 143c and the third inclined arm 143e, causing the second inclined arm 143c and the third inclined arm 143e to open to both sides, the second inclined arm 143c follows the movement of the first inclined arm 143b, and the fourth inclined arm 143f follows the movement of the third inclined arm 143e, and the width of the mouth 1432 of the slot 1431 (i.e., the second width 1432b) is larger. Fig.28 In (b), when the buckle 121 is completely pushed into the slot 1431 of the bent spring piece 143, the buckle 121 is limited by the second inclined arm 143c and the third inclined arm 143e, thereby achieving the locking of the buckle 121 and the bent spring piece 143.

[0246] In the case where the cover 113 is disposed on the mounting seat 130 and the cover 113 has an escape area 1131, see Fig.29 , Fig.30The slot 1431 of the bent spring sheet 143 is arranged corresponding to the escape area 1131 of the cover 113, the first inclined arm 143b and the second inclined arm 143c are located on one side of the escape area 1131, and the third inclined arm 143e and the fourth inclined arm 143f are located on the other side of the escape area 1131. The first horizontal arm 143a and the third horizontal arm 143g are limited by the cover 113.

[0247] See also Fig.28 In (a), a rounded corner can be set between the first inclined arm 143b and the second inclined arm 143c, and a rounded corner can be set between the third inclined arm 143e and the fourth inclined arm 143f, so as to facilitate the sliding contact between the head 1212 of the buckle 121 and the rounded corner area, thereby making the head 1212 of the buckle 121 and the slot 1431 of the bent spring piece 143 snap-fit ​​together.

[0248] The second implementation method of the bayonet structure 140c in the form of a bent spring sheet 143 is as follows: Figures 35 to 42 The bent spring piece 143 includes a sheet portion 143h, a first cantilever 143i and a second cantilever 143j. The sheet portion 143h is disposed on the mounting seat 130. One end of the first cantilever 143i is connected to the sheet portion 143h. One end of the second cantilever 143j is connected to the sheet portion 143h. The first cantilever 143i and the second cantilever 143j are spaced apart. A slot 1431 is formed between the first cantilever 143i and the second cantilever 143j. Fig.36 In (b), when the snap assembly 140 is in a locked state, the buckle 121 is located between the first cantilever 143i and the second cantilever 143j, and the first cantilever 143i and the second cantilever 143j are respectively disposed on opposite sides of the buckle 121.

[0249] The bent spring piece 143 can be formed by bending a sheet spring piece (such as a stainless steel sheet), which is easy to manufacture. Fig.36 In (c), in the initial state of the bent spring piece 143, a slot 1431 with a larger bottom and a smaller top is formed between the first cantilever 143i and the second cantilever 143j, the free end of the first cantilever 143i and the free end of the second cantilever 143j are arranged close to each other, and the width of the mouth 1432 of the slot 1431 (i.e., the first width 1432a) is relatively small. Fig.36 In (d), when the buckle 121 is just pushed into the slot 1431 of the bent spring sheet 143, the buckle 121 acts on the first cantilever 143i and the second cantilever 143j, so that the first cantilever 143i and the second cantilever 143j are opened to both sides, and the width of the mouth 1432 of the slot 1431 (i.e., the second width 1432b) is larger. Fig.36In (b), when the buckle 121 is completely pushed into the slot 1431 of the bent spring piece 143, the buckle 121 is limited by the first cantilever 143i and the second cantilever 143j, thereby achieving the locking of the buckle 121 and the bent spring piece 143.

[0250] For the above two types of bayonet structures 140c in the form of bent spring pieces 143, see Fig.28 , Fig.36 The buckle 121 includes a columnar portion 1211 and a head 1212, the head 1212 is connected to one end of the columnar portion 1211, and the other end of the columnar portion 1211 is connected to the fourth end 120b of the second folding member 120; in the width direction of the mouth 1432 of the slot 1431, the width 1212a of the head 1212 is greater than the width 1211a of the columnar portion 1211, and the width 1212a of the head 1212 is greater than the first width 1432a.

[0251] The buckle 121 having the columnar portion 1211 and the head portion 1212 is easy to form, and the buckle 121 can be engaged with the bent spring piece 143. The width of the head portion 1212 of the buckle 121 is set to be larger than the width of the mouth 1432 of the slot 1431 in the locked state or the separated state (i.e., the first width 1432a), so that when the buckle 121 is engaged with the slot 1431 of the bent spring piece 143, the buckle 121 and the bent spring piece 143 remain locked, and when the buckle 121 is separated from the slot 1431 of the bent spring piece 143, the two are completely separated.

[0252] For the above two types of bayonet structures 140c in the form of bent spring pieces 143, see Fig.28 , Fig.36 In order to facilitate the buckle 121 to be pushed into the bent spring piece 143, in some embodiments, the side of the head 1212 away from the columnar portion 1211 has a fourth guide surface 121d. During the process of switching from opening to closing of the first folding member 110 and the second folding member 120, the fourth guide surface 121d is used to slide in contact with the bent spring piece 143 to switch the buckle assembly 140 from a separated state to a critical state.

[0253] Combination Fig.28 In (c) and (d), when the snap assembly 140 is pressed to push the buckle 121 into the bent spring sheet 143, the fourth guide surface 121d of the head 1212 of the buckle 121 and the bent spring sheet 143 slide in contact, which can increase the width of the slot 1431 of the bent spring sheet 143, that is, the snap assembly 140 switches from the separated state to the critical state, making it easier for the user to push the buckle 121 into the bent spring sheet 143. The fourth guide surface 121d can be an arc surface or other smooth curved surface. Fig.28In (b), continue to press the snap assembly 140 to completely push the buckle 121 into the bent spring piece 143, and the width of the mouth 1432 of the slot 1431 of the bent spring piece 143 becomes smaller, so that the buckle 121 and the bent spring piece 143 are snap-fitted.

[0254] For the above two types of bayonet structures 140c in the form of bent spring pieces 143, see Fig.28 , Fig.36 In order to facilitate the buckle 121 to detach from the bent spring piece 143, in some embodiments, the head 1212 has a fifth guide surface 121e near the columnar portion 1211. During the process of switching from closing to opening of the first folding member 110 and the second folding member 120, the fifth guide surface 121e is used to slide in contact with the bent spring piece 143 to switch the bayonet structure 140c from a locked state to a critical state.

[0255] Combination Fig.28 In (b) and (d), when the buckle 121 is pulled open to separate the buckle 121 from the bent spring sheet 143, the fifth guide surface 121e of the head 1212 of the buckle 121 and the bent spring sheet 143 are in sliding contact, which can increase the width of the slot 1431 of the bent spring sheet 143, that is, the buckle assembly 140 switches from the locked state to the critical state, making it easier for the user to separate the buckle 121 from the bent spring sheet 143. The fifth guide surface 121e can be an arc surface or other smooth curved surface. Fig.28 In (c), the buckle 121 is further pulled apart to completely separate the buckle 121 from the bent spring sheet 143, and the width of the mouth 1432 of the slot 1431 of the bent spring sheet 143 becomes smaller, so that the buckle 121 and the bent spring sheet 143 are completely separated.

[0256] It can be understood that in the case of adopting the second snap assembly, the first part 140a provided on the mounting seat 130 is a buckle, and the second part 140b provided on the fourth end 120b of the second folding member 120 is a bayonet structure, and the bayonet structure and the buckle can be snap-fitted. Compared with the first snap assembly 140, the second snap assembly 140 interchanges the positions of the buckle and the bayonet structure. Accordingly, the fourth end 120b of the second folding member 120 serves as a carrier of the bayonet structure, and a structure adapted to the bayonet structure can be provided. For example, the fourth end 120b of the second folding member 120 is provided with a mounting groove, so that the bayonet structure is provided at the mounting groove. The specific structure of the second snap assembly can refer to the above-mentioned embodiment of the first snap assembly 140.

[0257] Exemplarily, the bayonet structure can be elastically retracted to reduce the stress deformation failure of the buckle and the bayonet structure. The bayonet structure can include a sliding buckle and an elastic member. The sliding buckle is movably mounted on the fourth end 120b of the second folding member 120. One end of the elastic member is arranged relative to the sliding buckle, and the other end of the elastic member is arranged relative to the wall surface of the fourth end 120b of the second folding member 120. The elastic member is used to make the sliding buckle elastically retractable; the elastic member is in an extended state, the sliding buckle is in an extended position, and the snap assembly 140 is in a locked state or a separated state; the elastic member is in a compressed state, the sliding buckle is in a retracted position, and the snap assembly 140 is in a critical state. During the contact and fastening process between the sliding buckle and the buckle, the sliding buckle can have a large sliding stroke under the action of the elastic member, and the sliding buckle and the buckle are not easily deformed and failed due to stress, so that the reliability and stability of the buckle 100 are relatively high.

[0258] Exemplarily, the sliding buckle comprises a sliding part and a first buckle part, the sliding part is slidably mounted on the fourth end 120b of the second folding member 120, the sliding part has two opposite ends along its sliding direction, the first buckle part is connected to one end of the sliding part, and the elastic member is arranged at the other end of the sliding part; the buckle can be snapped to the first buckle part. The sliding buckle and the elastic member cooperate, and during the contact and snapping process of the buckle and the sliding buckle, the elastic member can make the sliding buckle elastically expand and contract, and the buckle and the sliding buckle are not easily deformed and failed due to stress, and the reliability of the watch buckle 100 is high.

[0259] It is understandable that when the first fixing belt 200, the second fixing belt 300 and the buckle 100 are provided, the following can be used: Figure 1 , Figure 2 The first embodiment of the first fixing belt 200, the second fixing belt 300 and the buckle 100 shown in the figure, or the embodiment of the ... second embodiment of the first fixing belt 200, the second fixing belt 300 and the buckle 100 shown in the figure, Figure 4 The second implementation method of the first fixing strap 200, the second fixing strap 300 and the buckle 100 is shown.

[0260] When configuring the first curved plate 111 and the second curved plate 122, the following method can be used: Figure 6 , Fig.10 The first embodiment of the first curved plate 111 and the second curved plate 122 is shown, or the embodiment of the first embodiment of the first curved plate 111 and the second curved plate 122 is shown. Fig.14 A second implementation of the first curved plate 111 and the second curved plate 122 is shown.

[0261] When setting the snap assembly 140, the following method may be used: Figure 6 , Figure 7 The first implementation method of the snap assembly 140 shown (the first part 140a is the snap structure 140c, and the second part 140b is the snap 121), or the second implementation method of the snap assembly 140 (the first part 140a is the snap 121, and the second part 140b is the snap structure 140c).

[0262] When the bayonet structure 140c is provided, an elastic expansion method or an elastic deformation method may be adopted. The elastic expansion method may be specifically as follows: Figures 6 to 8 The first implementation of the bayonet structure 140c with the sliding buckle 141 and the elastic member 142 shown in the figure can also be as follows Figures 18 to 23 The second implementation of the bayonet structure 140c with the sliding buckle 141 and the elastic member 142 is shown. The elastic deformation method can be as follows: Figures 27 to 34 The implementation method of the first type of bayonet structure 140c in the form of the bent spring piece 143 shown in the figure can also be as follows Figures 35 to 42 The second implementation of the bayonet structure 140c in the form of a bent spring piece 143 is shown.

[0263] Regarding the multiple implementation methods under the above-mentioned different components, they can be freely selected and combined as needed.

[0264] For example, in an embodiment of a watch buckle, a first implementation of the snap-on assembly 140 and a first implementation of the bayonet structure 140c having a sliding buckle member 141 and an elastic member 142 are adopted.

[0265] In another embodiment of the watch buckle, the first implementation of the snap buckle assembly 140 and the second implementation of the bayonet structure 140c having the sliding buckle member 141 and the elastic member 142 are adopted.

[0266] In another embodiment of the watch buckle, the second implementation of the snap buckle assembly 140 and the first implementation of the bayonet structure 140c having the sliding buckle member 141 and the elastic member 142 are adopted.

[0267] For example, in an embodiment of a watchband or wearable device, the following Figure 1 , Figure 2 The first implementation of the first fixing strap 200, the second fixing strap 300 and the buckle 100, the first implementation of the snap-on assembly 140, and the first implementation of the bayonet structure 140c having a sliding buckle 141 and an elastic member 142 are shown.

[0268] In another embodiment of a watchband or wearable device, a Figure 4 The second implementation of the first fixing strap 200 , the second fixing strap 300 and the clasp 100 shown in the figure adopts the second implementation of the snap assembly 140 and the first implementation of the bayonet structure 140 c having the sliding buckle 141 and the elastic member 142 .

[0269] In another embodiment of a watchband or wearable device, a Figure 1 , Figure 2The first implementation of the first fixing strap 200, the second fixing strap 300 and the buckle 100, the first implementation of the snap buckle assembly 140, and the first implementation of the bayonet structure 140c in the form of a bent spring sheet 143 are shown.

[0270] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application 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 watch buckle, characterized in that: include: A first folding member, a second folding member, a mounting seat and a snap assembly; The first folding member has a first end and a second end opposite to each other, and the first end is fixed to the mounting seat; The second folding member has a third end and a fourth end opposite to each other, and the second end and the third end are rotatably connected so that the first folding member and the second folding member can be closed or opened; the snap assembly includes a first part arranged on the mounting seat, and a second part arranged on the fourth end; When the first folding member and the second folding member are closed, the first part and the second part of the snap assembly are locked; When the first folding member and the second folding member are opened, the first part and the second part of the snap assembly are separated.

2. The buckle according to claim 1, characterized in that: The first folding member includes a first arc-shaped plate, and the second folding member includes a second arc-shaped plate; the first arc-shaped plate has two opposite ends, namely the first end and the second end, and the second arc-shaped plate has two opposite ends, namely the third end and the fourth end; the second end and the third end are rotatably connected via a pin shaft; When the first folding member and the second folding member are closed, the first arc plate and the second arc plate are arranged along the direction of the pin shaft, and the first arc plate and the second arc plate have the same extension direction.

3. The buckle according to claim 2, characterized in that: There are a plurality of the first arc-shaped plates, and the plurality of the first arc-shaped plates are arranged at intervals along the direction of the pin shaft. When the first folding member and the second folding member are closed, at least one of the second arc-shaped plates is located between the plurality of the first arc-shaped plates.

4. The clasp according to any one of claims 1 to 3, characterized in that: The first part is a bayonet structure, and the second part is a buckle.

5. The buckle according to claim 4, characterized in that: The first end of the first folding member has a cover portion, which is fixed on the mounting seat. The cover portion and the mounting seat form a mounting groove. The bayonet structure is arranged at the mounting groove, and the cover portion has an escape area for partially exposing the bayonet structure.

6. The buckle according to claim 4, characterized in that: The bayonet structure includes a sliding buckle and an elastic member, wherein the sliding buckle is movably mounted on the mounting seat, one end of the elastic member is arranged opposite to the sliding buckle, and the other end of the elastic member is arranged opposite to the wall surface of the mounting seat, and the elastic member is used to make the sliding buckle elastically expand and contract; The elastic member is in an extended state, the sliding buckle member is in an extended position, and the snap assembly is in a locked state or a separated state; The elastic member is in a compressed state, the sliding buckle member is in a retracted position, and the snap assembly is in a critical state.

7. The buckle according to claim 6, characterized in that: The sliding buckle comprises a sliding part and a first buckle part, the sliding part is slidably mounted on the mounting seat, the sliding part has two opposite ends along its sliding direction, the first buckle part is connected to one end of the sliding part, and the elastic part is arranged at the other end of the sliding part; the buckle can be snapped onto the first buckle part.

8. The buckle according to claim 7, characterized in that: The mounting seat has a first stop wall, and the first stop wall is used to abut and cooperate with the sliding part to limit the sliding part; the first stop wall has an opening for the first buckle part to extend out.

9. The buckle according to claim 7, characterized in that: The sliding buckle also includes a first limiting portion, which is connected to an end of the sliding portion facing away from the first buckle portion, and one end of the elastic member is mounted on the first limiting portion.

10. The buckle according to claim 7, characterized in that: The sliding part is provided with a plurality of elastic members, and the mounting seat has a partition wall, and two adjacent elastic members are separated by the partition wall.

11. The buckle according to claim 7, characterized in that: The head of the buckle has a first guide surface, and in the process of the first folding member and the second folding member switching from opening to closing, the first guide surface is used to slide in contact with the first buckle portion, so that the snap assembly switches from the separated state to the critical state; And / or, the middle part of the buckle has a second guide surface, and in the process of the first folding part and the second folding part switching from closed to open, the second guide surface is used to slide in contact with the first buckle part so that the snap assembly switches from the locked state to the critical state.

12. The clasp according to any one of claims 7 to 11, characterized in that: The moving direction of the sliding buckle, the telescopic direction of the elastic member and the length direction of the mounting seat are parallel.

13. The buckle according to claim 6, characterized in that: The mounting seat has a mounting hole; the sliding buckle includes a button part and a second buckle part, the button part is slidably mounted on the mounting seat and exposed at the mounting hole, the second buckle part is connected to the button part, the elastic part is arranged on a side of the button part away from the mounting hole, and the buckle can be snapped onto the second buckle part.

14. The clasp according to claim 13, characterized in that: The sliding fastener also includes a second limiting portion, which is connected to the button portion. The mounting seat has a second blocking wall, which is used to abut and cooperate with the second limiting portion to limit the button portion.

15. The buckle according to claim 13, characterized in that: The button portion has a receiving groove on one side away from the mounting hole, and the elastic member is at least partially disposed in the receiving groove.

16. The buckle according to claim 13, characterized in that: The head of the buckle has a third guide surface. During the process of the first folding member and the second folding member switching from opening to closing, the third guide surface is used to slide in contact with the second buckle portion to switch the snap buckle assembly from the separated state to the critical state.

17. The buckle according to any one of claims 13 to 16, characterized in that: The moving direction of the sliding fastener is parallel to the expansion and contraction direction of the elastic member, and the moving direction of the sliding fastener is perpendicular to the length direction of the mounting seat.

18. The buckle according to claim 4, characterized in that: The bayonet structure comprises a bent spring piece capable of elastic deformation, wherein the bent spring piece has a bayonet slot with a variable opening width; When the snap assembly is in a locked state or a separated state, the width of the mouth of the card slot is a first width; When the snap assembly is in a critical state, the width of the mouth of the slot is a second width; and the first width is smaller than the second width.

19. The clasp according to claim 18, characterized in that: The bent elastic sheet comprises a first transverse arm, a first inclined arm, a second inclined arm, a second transverse arm, a third inclined arm, a fourth inclined arm and a third transverse arm which are connected in sequence, the first transverse arm, the second transverse arm and the third transverse arm are flush and arranged on the mounting seat, the first inclined arm and the second inclined arm are arranged in parallel, the third inclined arm and the fourth inclined arm are arranged in parallel, the second inclined arm and the third inclined arm are arranged at intervals, and the slot is formed between the second inclined arm and the third inclined arm; When the snap assembly is in the locked state, the buckle is located between the second inclined arm and the third inclined arm, and the second inclined arm and the third inclined arm are respectively disposed on opposite sides of the buckle.

20. The buckle according to claim 18, characterized in that: The bent elastic sheet includes a sheet portion, a first cantilever and a second cantilever, the sheet portion is arranged on the mounting seat, one end of the first cantilever is connected to the sheet portion, one end of the second cantilever is connected to the sheet portion, the first cantilever and the second cantilever are arranged at intervals, and the card slot is formed between the first cantilever and the second cantilever; When the snap assembly is in the locked state, the buckle is located between the first cantilever and the second cantilever, and the first cantilever and the second cantilever are respectively disposed on opposite sides of the buckle.

21. The clasp according to any one of claims 18 to 20, characterized in that: The buckle includes a columnar portion and a head portion, wherein the head portion is connected to one end of the columnar portion, and the other end of the columnar portion is connected to the fourth end of the second folding member; In the width direction of the mouth of the card slot, the width of the head portion is greater than the width of the columnar portion, and the width of the head portion is greater than the first width.

22. The clasp according to claim 21, characterized in that: The head has a fourth guide surface on one side away from the columnar portion, and in the process of the first folding member and the second folding member switching from opening to closing, the fourth guide surface is used to slide in contact with the bent spring sheet, so that the snap assembly switches from the separated state to the critical state; And / or, the head has a fifth guide surface near the columnar portion, and in the process of the first folding member and the second folding member switching from closed to open, the fifth guide surface is used to slide in contact with the bent spring sheet to switch the bayonet structure from the locked state to the critical state.

23. The clasp according to any one of claims 1 to 3, characterized in that: The fourth end of the second folding member has a positioning ring, and the positioning ring is used for the fixing belt to pass through; The middle part of the second folding member is provided with a snap-fitting portion, and the snap-fitting portion is used for snap-fitting with the snap-fitting hole of the fixing belt.

24. A watch strap, characterized in that: It comprises a first fixing strap, a second fixing strap and a watch buckle as claimed in any one of claims 1 to 23; one end of the first fixing strap is rotatably connected to the mounting seat; the second fixing strap is detachably mounted on the second folding member; When the second fixing belt is installed on the second folding member and the first folding member and the second folding member are closed, the first folding member and the second folding member are located on the inner side of the first fixing belt or the inner side of the second fixing belt.

25. The watch strap according to claim 24, characterized in that: The fourth end of the second folding member has a positioning ring, the middle part of the second folding member has a clamping portion, the second fixing belt has a plurality of clamping holes arranged along the extension direction of the second fixing belt, the free end of the second fixing belt can be passed through the positioning ring, and the clamping portion can be clamped into one of the clamping holes.

26. A wearable device, characterized in that: It comprises a device body and a watch strap as described in claim 24 or 25, wherein one end of the first fixing strap away from the mounting seat is connected to the device body, and one end of the second fixing strap is connected to the device body.

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