CN112273807B

CN112273807B - Wearable device

Info

Publication number: CN112273807B
Application number: CN201910665918.0A
Authority: CN
Inventors: 胡江华; 薛跃各
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2022-01-18
Anticipated expiration: 2039-07-23
Also published as: WO2021012809A1; CN112273807A

Abstract

The application relates to a wearable device, which comprises a shell, a bandage assembly and a key. The shell is provided with a groove and a mounting groove communicated with the groove. The bandage subassembly includes bandage, first fastener and second fastener, and on the width direction of bandage, the both sides of the back of the body of bandage just can be followed the width direction flexible removal of bandage respectively to first fastener, first fastener are worn to establish respectively the bandage. The binding band can be arranged in the groove and can be fixed on the shell when the first clamping piece and the second clamping piece extend out of the binding band. After the bandage is fixed in the casing, the button can move in order to promote first fastener indentation bandage along the width direction of bandage, and the button can also rotate in the mounting groove in order to be spacing in the casing to make the bandage can dismantle from the casing. Above-mentioned wearable equipment can promote the convenience of bandage dismouting.

Description

Wearable device

Technical Field

The application relates to the technical field of wearable equipment.

Background

General wrist-watch includes watchband and watchcase, and the watchband adopts elasticity thimble block in the watchcase, and elasticity thimble is comparatively sharp thin, causes the dismouting of watchband and watchcase inconvenient.

Disclosure of Invention

The embodiment of the application discloses wearable equipment to solve the inconvenient technical problem of dismouting of watchband and watchcase.

The shell is provided with a groove and a mounting groove communicated with the groove;

the binding belt assembly comprises a binding belt, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece respectively penetrate through two opposite sides of the binding belt in the width direction of the binding belt and can respectively move in a telescopic mode along the width direction of the binding belt; the binding band can be arranged in the groove and can be fixed on the shell when the first clamping piece and the second clamping piece extend out of the binding band; and

the key is arranged in the mounting groove and can move in a telescopic mode relative to the shell; after the binding band is fixed on the shell, the button can move along the width direction of the binding band to push the first clamping piece to retract into the binding band, and the button can also rotate in the mounting groove to be limited on the shell and enable the binding band to be detached from the shell.

Above-mentioned wearable equipment, when first fastener, second fastener stretched out the bandage, the bandage can fixed mounting in the casing. Bandage fixed mounting is in the casing after, the button can move in order to promote first fastener indentation bandage relative to the casing, and the button can also be rotatory in order to be spacing in the casing at the mounting groove to convenience of customers is to the bandage application of force, dismantles the bandage from the casing, and above wearable equipment can promote the convenience of bandage dismouting.

In one embodiment, the wearable device includes a limiting member, the limiting member is fixedly connected to the housing and sleeved on the key, and after the strap is engaged with the housing, the key can move in the limiting member to push the first engaging member to retract into the strap.

In one embodiment, after the first engaging member is retracted into the band, the key can rotate around the width direction of the band to engage with the limiting member.

In one embodiment, the limiting member is provided with a first groove, a second groove and a third groove which are communicated with each other, and the first groove and the second groove respectively extend along the width direction of the binding band; the key comprises a main body and a convex column protruding along the radial direction of the main body, the main body is arranged in the first groove and can move to a first position and a second position in the first groove, the first clamping piece can be limited on the shell at the first position, and the main body is abutted against the first clamping piece at the second position so that the binding band can be detached from the shell; and at the second position, the key can rotate around the width direction of the binding band, so that the convex column enters the third groove from the second groove and is abutted against the groove wall of the third groove to be clamped on the limiting piece.

In one embodiment, the wearable device comprises a first elastic piece and a stopping piece, wherein the first elastic piece is sleeved on the main body and is accommodated in the first groove; the stopping piece is fixed on one side, close to the first clamping piece, of the limiting piece, and the main body penetrates through the stopping piece; one end of the first elastic piece is abutted against the stopping piece, the other end of the first elastic piece is abutted against the convex column, and the first elastic piece is compressed when in the second position.

In one embodiment, a clamping groove is formed in one end, close to the first engaging member, of the main body along the circumferential direction of the main body, the wearable device includes a clamping ring, the clamping ring is arranged on one side, close to the first engaging member, of the stopping member, and the clamping ring is clamped in the clamping groove to limit the key from being separated from the mounting groove.

In one embodiment, when the binding band is fixed to the casing, a part of the end surface of the key exposed out of the casing is flush with the outer surface of the casing, and the other part of the end surface of the key exposed out of the casing is recessed towards the side of the groove to form a force-bearing groove.

In one embodiment, when the binding band is fixed to the shell, the end face of the key exposed out of the shell protrudes out of the shell; after the key pushes the first clamping piece to retract into the binding band, the key protrudes out of the shell and can rotate around the width direction of the binding band to be clamped with the limiting piece.

In one embodiment, the strap assembly comprises a first sleeve and a second elastic member, the first sleeve is fixed to the strap and provided with a first mounting hole, the second elastic member is arranged in the first mounting hole, one end of the second elastic member abuts against the first sleeve, and the other end of the second elastic member abuts against the first clamping member so that the first clamping member can move telescopically relative to the strap in the first mounting hole; when the first clamping piece retracts towards the binding belt, the second elastic piece accumulates elastic force; when the second elastic piece releases the elastic force, the first clamping piece can be pushed to extend out of the binding band.

In one embodiment, the strap assembly comprises a second sleeve and a third elastic element, the second sleeve is fixedly connected with one side of the strap away from the first sleeve, the second sleeve is provided with a second mounting hole, the third elastic element is arranged in the second mounting hole, one end of the third elastic element abuts against the second sleeve, and the other end of the third elastic element abuts against the second clamping element so that the second clamping element can move telescopically in the second mounting hole; when the second engaging member retracts toward the strap, the third elastic member accumulates elastic force; when the third elastic piece releases the elastic force, the second clamping piece can be pushed to extend out of the binding band.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a wearable device in one embodiment;

fig. 2 is an exploded view of the wearable device shown in fig. 1;

FIG. 3 is a cross-sectional view of one state of the wearable device of FIG. 1;

fig. 4 is an enlarged schematic view at a of the wearable device shown in fig. 3;

FIG. 5 is a cross-sectional view of another state of the wearable device shown in FIG. 1;

fig. 6 is an enlarged schematic view at B of the wearable device shown in fig. 5;

fig. 7 is an assembled perspective view of a key and a stopper of the wearable device shown in fig. 2;

fig. 8 is a front view of a strap assembly of the wearable device of fig. 1;

FIG. 9 is a cross-sectional view of the wearable device of FIG. 8 taken along line C-C;

fig. 10 is a perspective view of the wearable device shown in fig. 2 after the first engaging member and the first sleeve are assembled.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 and 2, the wearable device 10 includes a housing 100 and a strap assembly 200. The housing 100 may be made of non-metal materials such as plastic, rubber, silica gel, wood or ceramic, and the housing 100 may also be made of metal materials such as stainless steel, aluminum alloy or magnesium alloy. The inside of the case 100 forms an installation space. In some embodiments, the wearable device 10 is a smart watch, and the installation space may be used to install electronic components such as a battery, a processor, a display screen, a biosensor, etc., but the display screen is not necessary and thus may be omitted. Biosensors may be used to detect biological data such as heart rate, respiration rate, blood pressure, or body fat, and in some embodiments, may also be used to detect a state of motion such as for step counting. In other embodiments, the wearable device 10 may be a sports watch, a common form of which is an electronic watch, or a conventional watch, a common form of which is a mechanical watch, or the like. In other embodiments, the wearable device 10 may also be a smart band or the like.

Referring to fig. 2, the case 100 is provided with a groove 101 for mounting the harness assembly 200, and the harness assembly 200 can be fixedly mounted to the case 100 and detached from the case 100. The groove 101 may be circumferentially closed, or may be circumferentially provided with a notch. The strap assembly 200 includes a strap 210 and a first engaging member 220, and the first engaging member 220 is inserted into the strap 210 and can move in a telescopic manner in the width direction of the strap 210. After at least part of the first engaging member 220 is retracted into the strap 210, the strap 210 can be inserted into the groove 101, and after the strap 210 is inserted into the groove 101, the first engaging member 220 extends out of the strap 210 and is restrained on the housing 100, so that the strap 210 is engaged with the housing 100. In some embodiments, the strap 210 is divided into two pieces, each of the two pieces of strap 210 has one end connected to the housing 100, and the ends of the two pieces of strap 210 facing away from the housing 100 may be fastened together to form a receiving space, so that the wearable device 10 can be worn on the wrist or arm of the user or other parts of the body through the strap 210. In other embodiments, the strap 210 may be a one-piece structure, two ends of the strap 210 are respectively connected to the housing 100, and the strap 210 may adjust the size of the accommodating space through other structures, such as a buckle, elastic expansion, and the like, so as to be conveniently worn by a user. The present application is illustrated with one of the two-piece straps 210, but it is understood that the structure disclosed herein is applicable to other strap 210 configurations.

Referring to fig. 2, the wearable device 10 includes a button 300, the button 300 is disposed on the housing 100 and can move telescopically relative to the housing 100, after the strap 210 is fixed to the housing 100, the button 300 can move along the width direction of the strap 210 to push the first engaging member 220 to retract into the strap 210, so that the strap 210 can be detached from the housing 100. Specifically, referring to fig. 3 and 4, the housing 100 is provided with a mounting groove 103 communicating with the groove 101, the mounting groove 103 extends along the width direction of the binding band 210, and the key 300 is disposed in the mounting groove 103 and exposed out of the housing 100. The wearable device 10 further includes a limiting member 400, the limiting member 400 is fixedly connected to the housing 100 and is sleeved with the key 300, after the strap 210 is fixed to the housing 100, the key 300 can move in the limiting member 400 to push the first engaging member 220 to retract into the strap 210. The limiting member 400 can guide and limit the movement of the first engaging member 220, and the material of the limiting member 400 may have high strength and wear resistance. For example, the limiting member 400 may be made of a metal material such as stainless steel, and the limiting member 400 may also be made of a non-metal material such as ceramic. Further, referring to fig. 5 and 6, after the first engaging member 220 is retracted into the strap 210, the key 300 can rotate around the width direction of the strap 210 to engage with the limiting member 400. When the key 300 is engaged with the position-limiting member 400, the binding assembly 200 can be conveniently withdrawn from the mounting groove 103 without squeezing the key 300, so that the binding assembly 200 can be detached from the casing 100. It is understood that the stopper 400 is not essential, and for example, a stepped groove may be provided in the housing 100 to allow the key 300 to move in the width direction of the strap 210 and to be engaged with the housing 100 after rotating, so as to facilitate the detachment of the strap 210.

Further, referring to fig. 6 and 7, the stopper 400 is provided with a first groove 401, a second groove 403, and a third groove 405 communicating with each other, and the first groove 401 and the second groove 403 extend in the width direction of the strap 210, respectively. The key 300 includes a main body 310 and a protrusion 320 protruding along a radial direction of the main body 310, the main body 310 is received in the first slot 401 and can move to a first position and a second position in the first slot 401, referring to fig. 4, in the first position, the first engaging member 220 can be limited to the housing 100. The push button 300 moves to the second position in the width direction of the strap 210 within the first slot 401, and referring to fig. 6, the first engaging member 220 gradually retracts the strap 210 to enable the strap 210 to be detached from the housing 100. Referring to fig. 7, in the second position, the key 300 can rotate around the width direction of the binding band 210, so that the convex pillar 320 enters the third groove 405 from the second groove 403 and abuts against the groove wall of the third groove 405 to be engaged with the limiting member 400. In the embodiment shown in fig. 7, second slot 403 and third slot 405 form a substantially 7-shaped structure that facilitates movement and rotation of post 320 within second slot 403 and into third slot 405. After the key 300 enters the third groove 405 and engages with the limiting member 400, the force applied to the key 300 can be removed, and the first engaging member 220 can be kept in the retracted state, so that the binding band 210 can be conveniently detached from the casing 100.

Further, referring to fig. 4 and 6, the wearable device 10 includes a first elastic member 510 and a stopper 520, wherein the first elastic member 510 is sleeved on the main body 310 and is accommodated in the first slot 401. The stopper 520 can be ring-shaped or C-shaped, the stopper 520 is fixed on a side of the limiting member 400 close to the first engaging member 220, and the main body 310 passes through the stopper 520 and can move relative to the stopper 520. The inner diameter of the stopper 520 is smaller than the radial dimension of the first groove 401, and the outer diameter of the stopper 520 may be smaller than or equal to or larger than the outer diameter of the stopper 400. One end of the first elastic member 510 abuts against the stopper 520, and referring to fig. 7, the other end of the first elastic member 510 abuts against the boss 320, and the first elastic member 510 is compressed when in the second position. Through the interaction of the stopper 520, the key 300 and the first elastic member 510, the elastic force of the first elastic member 510 can be accumulated in the second position. After the strap 210 is detached from the housing 100, and the key 300 is rotated reversely to make the boss 320 enter the second groove 403 from the third groove 405, the main body 310 can return to the first position under the action of the first elastic element 510, so as to facilitate the detachment and installation of the strap 210 at the next time. The first elastic member 510 may be a spring, or a spring plate, or an elastic rubber sleeve. It is understood that the first elastic member 510 is not necessary, and the key 300 can be rotated and returned to the first position by an auxiliary tool such as a screwdriver.

Further, referring to fig. 4 and 6, a clamping groove 311 is formed at one end of the main body 310 close to the first engaging member 220 along a circumferential direction of the main body 310, the wearable device 10 includes a clamping ring 530, and the clamping ring 530 may be C-shaped and may be made of spring steel or stainless steel. The snap ring 530 is disposed on a side of the stopper 520 close to the first engaging member 220, and the snap ring 530 is engaged with the engaging groove 311 to limit the key 300 from being released from the mounting groove 103. It can be understood that the key 300 can be limited from coming out of the mounting groove 103 by the limiting member 400, for example, the second groove 403 does not need to penetrate through two ends of the limiting member 400, and the moving range of the key 300 can be limited by the interaction between the groove wall of the second groove 403 and the protruding pillar 320.

In some embodiments, when the strap 210 is fixed to the casing 100, a portion of the end surface of the key 300 exposed to the casing 100 is flush with the outer surface of the casing 100, as shown in fig. 2 and 4. Referring to fig. 7, another portion of the key 300 exposed on the end surface of the housing 100 is recessed toward the groove 101 to form a force-receiving groove 330. Since a portion of the key 300 exposed out of the end surface of the housing 100 is flush with the outer surface of the housing 100, when the first engaging member 220 is limited in the housing 100, the appearance integrity of the wearable device 10 can be improved, so as to improve the appearance characteristics of the wearable device 10. The force-receiving slot 330 may be adapted to accommodate a screwdriver to apply force to the key 300 to push the key 300 to move or rotate, for example, the force-receiving slot 330 may be linear, X-shaped or other shapes. In the embodiment shown in fig. 7, the force-receiving groove 330 is configured as a protrusion in the middle and a recessed area on two opposite sides of the protrusion, and this structure can be conveniently applied with an auxiliary tool, such as tweezers, to the key 300 to drive the key 300 to move or rotate.

In other embodiments, when the strap 210 is fixed to the housing 100, the end surface of the key 300 exposed from the housing 100 protrudes out of the housing 100, and after the key 300 pushes the first engaging member 220 to retract into the strap 210, the key 300 protrudes out of the housing 100 and the key 300 can rotate around the width direction of the strap 210 to engage with the limiting member 400. The protruding configuration of the key 300 may facilitate a user to apply force to the key 300 to drive the key 300 to move or rotate when the strap 210 is fixed to the casing 100, for example, the user may use an auxiliary tool to drive the key 300 to move or rotate. As another example, the user may move or rotate the key 300 using a fingertip. The protruding design of the key 300 also facilitates the user to apply force to the key 300 when the key 300 pushes the first engaging member 220 to retract the strap 210 so that the strap 210 can be detached from the casing 100, for example, the user can rotate the key 300 with a fingertip or other auxiliary tool to return the key 300 to the first position.

Referring to fig. 8, 9 and 10, the strap assembly 200 includes a first sleeve 230 and a second elastic member 240, the first sleeve 230 is fixed to the strap 210, the first sleeve 230 is provided with a first mounting hole 231, the second elastic member 240 is provided in the first mounting hole 231, one end of the second elastic member 240 abuts against the first sleeve 230, and the other end abuts against the first engaging member 220 so that the first engaging member 220 can move telescopically relative to the strap 210 in the first mounting hole 231. When the first engaging member 220 retracts toward the strap 210, the second elastic member 240 accumulates elastic force, and when the second elastic member 240 releases the elastic force, the first engaging member 220 can be pushed to extend out of the strap 210. The first sleeve 230 may be made of metal or nonmetal, the first sleeve 230 has relatively high strength, the strap 210 may be a flexible body, the first sleeve 230 may be in interference fit with the strap 210 or fixedly connected to the strap 210 by bonding, riveting, or the like, and the first sleeve 230 is configured to provide effective support for the first engaging element 220 and the second elastic element 240. The second elastic member 240 may be a spring, a spring sheet, an elastic rubber sleeve, or the like, and the second elastic member 240 is used for driving the first engaging member 220 to extend out of the strap 210 and maintaining the extension tendency of the first engaging member 220 when the first engaging member 220 extends out of the strap 210, so that the strap 210 can be reliably fixed to the casing 100 through the first engaging member 220. Of course, the first sleeve 230 and the second elastic member 240 are not necessary, and blind holes may be directly formed in the strap 210, for example, to allow the first engaging member 220 to be mounted. One end of the first engaging member 220 may have elastic deformation properties, and for example, one end of the first engaging member 220 may be provided in a spring-like structure so that one end of the first engaging member 220 can protrude out of the strap 210 and can retract into the strap 210.

Referring to fig. 9, the strap assembly 200 includes a second engaging member 250, a second sleeve 260 and a third elastic member 270, the second sleeve 260 is fixedly connected to a side of the strap 210 away from the first sleeve 230, the second sleeve 260 is provided with a second mounting hole 261, the third elastic member 270 is provided in the second mounting hole 261, one end of the third elastic member 270 abuts against the second sleeve 260, the other end abuts against the second engaging member 250, so that the second engaging member 250 can move in the second mounting hole 261 in a telescopic manner, and the second engaging member 250 is disposed opposite to the first engaging member 220. When the second engaging member 250 retracts toward the strap 210, the third elastic member 270 accumulates elastic force, and when the third elastic member 270 releases the elastic force, the second engaging member 250 can be pushed to extend out of the strap 210.

The second sleeve 260 may have a structure similar to that of the first sleeve 230, the material of the second sleeve 260 may be metal or nonmetal, the second sleeve 260 has relatively high strength, the strap 210 may be a flexible body, the second sleeve 260 may be in interference fit with the strap 210 or fixedly connected to the strap 210 by bonding, riveting, or the like, and the second sleeve 260 is configured to provide effective support for the second engaging element 250 and the third elastic element 270. The third elastic element 270 may have a structure similar to that of the second elastic element 240, and may be a spring, a spring sheet, an elastic rubber sleeve, or the like, and the third elastic element 270 is used for driving the second engaging element 250 to extend out of the strap 210, and maintaining the extending trend of the second engaging element 250 when the second engaging element 250 extends out of the strap 210, so that the strap 210 can be reliably restrained to the casing 100 by the second engaging element 250. Of course, the second sleeve 260 and the third elastic member 270 are not necessary, and for example, blind holes may be directly formed in the strap 210 to allow the second engaging member 250 to be mounted. One end of the second engaging member 250 may have elastic deformation properties, and for example, one end of the second engaging member 250 may be provided in a spring-like structure so that one end of the second engaging member 250 can protrude out of the strap 210 and can retract into the strap 210. The first and second engaging

members

220, 250 may be symmetrically disposed about the center plane of the strap 210, which facilitates force balancing. Of course, the second sleeve 260 and the third elastic member 270 are not necessary and thus may be omitted. For example, a fixed second engaging member 250 may be disposed on a side of the strap 210 facing away from the first engaging member 220, a blind hole may be disposed on a side of a wall of the groove 101 facing the second engaging member 250, and the second engaging member 250 may be disposed in the blind hole when the strap 210 is mounted to the housing 100. The second engaging member 250 engages with the case 100, and the band 210 is securely attached to the case 100 in conjunction with the first engaging member 220. The second engaging member 250 is a protruding structure and protrudes from a side of the strap 210 away from the first engaging member 220. The protruding structure may have an elastic deformation property, for example, the protruding structure may be made of silicone or rubber or plastic, so that the protruding structure can be easily mounted to the housing 100 and facilitates the detachment of the strap 210 from the housing 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A wearable device, comprising:

the binding belt assembly comprises a binding belt, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece respectively penetrate through two opposite sides of the binding belt in the width direction of the binding belt and can respectively move in a telescopic mode along the width direction of the binding belt; the binding band can be arranged in the groove and can be fixed on the shell when the first clamping piece and the second clamping piece extend out of the binding band;

the limiting piece is fixedly connected with the shell; and

the key is arranged in the mounting groove and can move in a telescopic mode relative to the shell; the key comprises a main body and a convex column which protrudes along the radial direction of the main body, the main body can move to a first position and a second position relative to the limiting piece, and the first clamping piece can be limited on the shell at the first position; after the binding band is fixed to the shell, the button can move to a second position along the width direction of the binding band to push the first clamping piece to retract into the binding band, and the button can also rotate in the mounting groove to drive the convex column to rotate relative to the limiting piece at the second position, so that the convex column is abutted against the limiting piece and clamped with the limiting piece, the button is limited on the shell, and the binding band can be detached from the shell.

2. The wearable device according to claim 1, wherein the stopper is configured to fit over the key, the key being movable within the stopper after the strap is secured to the housing.

3. The wearable device according to claim 2, wherein after the first engaging member is retracted into the band, the key is capable of rotating around a width direction of the band to engage with the limiting member.

4. The wearable device according to claim 3, wherein the stopper is provided with a first groove, a second groove and a third groove which are communicated with each other, and the first groove and the second groove extend in the width direction of the strap, respectively; the main body is arranged in the first groove and can move in the first groove, and the key can rotate around the width direction of the binding band at a second position, so that the convex column enters the third groove from the second groove and is abutted against the groove wall of the third groove to be clamped on the limiting part.

5. The wearable device according to claim 4, wherein the wearable device comprises a first elastic member and a stopper, wherein the first elastic member is sleeved on the main body and is accommodated in the first groove; the stopping piece is fixed on one side, close to the first clamping piece, of the limiting piece, and the main body penetrates through the stopping piece; one end of the first elastic piece is abutted against the stopping piece, the other end of the first elastic piece is abutted against the convex column, and the first elastic piece is compressed when in the second position.

6. The wearable device according to claim 5, wherein a clamping groove is formed in one end of the main body, which is close to the first engaging member, along a circumferential direction of the main body, and the wearable device comprises a snap ring, the snap ring is arranged on one side of the stopper, which is close to the first engaging member, and the snap ring is engaged with the clamping groove to limit the key from being disengaged from the mounting groove.

7. The wearable device according to claim 2, wherein when the strap is fixed to the housing, a portion of the end surface of the key exposed to the housing is flush with the outer surface of the housing, and another portion of the end surface of the key exposed to the housing is recessed to a side of the groove to form a force receiving groove.

8. The wearable device according to claim 2, wherein an end surface of the key exposed to the housing protrudes from the housing when the strap is fixed to the housing; after the key pushes the first clamping piece to retract into the binding band, the key protrudes out of the shell and can rotate around the width direction of the binding band to be clamped with the limiting piece.

9. The wearable device according to any of claims 1-8, wherein the strap assembly comprises a first sleeve and a second elastic member, the first sleeve is fixed to the strap and provided with a first mounting hole, the second elastic member is provided in the first mounting hole and has one end abutting the first sleeve and the other end abutting the first engaging member so that the first engaging member can move telescopically relative to the strap at the first mounting hole; when the first clamping piece retracts towards the binding belt, the second elastic piece accumulates elastic force; when the second elastic piece releases the elastic force, the first clamping piece can be pushed to extend out of the binding band.

10. The wearable device according to claim 9, wherein the strap assembly comprises a second sleeve and a third elastic member, the second sleeve is fixedly connected to a side of the strap facing away from the first sleeve, the second sleeve is provided with a second mounting hole, the third elastic member is provided in the second mounting hole, one end of the third elastic member abuts against the second sleeve, and the other end abuts against the second engaging member so that the second engaging member can move telescopically in the second mounting hole; when the second engaging member retracts toward the strap, the third elastic member accumulates elastic force; when the third elastic piece releases the elastic force, the second clamping piece can be pushed to extend out of the binding band.