Bandage assembly and wearable device

Abstract

The invention relates to a bandage assembly and wearable equipment, the bandage assembly comprises a bandage, an air bag and a lock catch, the lock catch comprises an insertion piece, a positioning seat, a first elastic piece and an unlocking key, the insertion piece is connected to the air bag, and a mounting space and an insertion hole which communicate with each other are formed in the bandage; the positioning seat is used for positioning the insertion piece under the pushing of the first elastic piece so as to limit the insertion piece to be pulled out of the insertion hole, and the unlocking key is used for driving the positioning seat to overcome the elastic force of the first elastic piece under the pressing of external force and move relative to the bandage so as to release the positioning of the insertion piece by the positioning seat. According to the bandage assembly and the wearable device, when the air bag needs to be assembled to the bandage, only the insertion piece on the air bag needs to be inserted into the insertion hole so that the positioning base can position the insertion piece, and the positioning base is used for limiting the insertion piece from being pulled out of the insertion hole; and when the air bag needs to be disassembled, the positioning of the inserting piece by the positioning seat is released only by pressing the unlocking key, so that the operation convenience of mounting and disassembling the air bag on the bandage is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wearable devices, in particular to a bandage assembly and a wearable device. BACKGROUND

[0002] Wearable devices such as smart watches and smart bands adapt to blood pressure examination needs by integrating air bags. However, the wrist circumference of a wearer's wrist is not the same, and the user needs to select a bandage assembly of appropriate length and an air bag that fits. In related technologies, air bag disassembly and assembly operations are inconvenient. SUMMARY

[0003] The present application provides a bandage assembly and a wearable device to solve the technical problem of how to improve the convenience of air bag disassembly and assembly operations.

[0004] In one aspect, the present application provides a bandage assembly, comprising a bandage, an air bag, and a lock, the lock being used to detachably connect the air bag to the inner side of the bandage, the lock comprising a plug, a positioning seat, a first elastic member, and an unlocking key, the plug being connected to the air bag, the bandage being formed with a mounting space and a plug hole communicating with the mounting space, the positioning seat and the first elastic member both being arranged in the mounting space, the positioning seat being used to position the plug protruding into the mounting space from the plug hole under the pushing of the first elastic member to limit the plug from being pulled out of the plug hole, and the unlocking key being used to drive the positioning seat to move relative to the bandage against the elastic force of the first elastic member under the pressing of an external force to release the positioning of the plug by the positioning seat.

[0005] In one embodiment, the plug hole is penetrated by the inner side of the bandage to the mounting space, so that the plug can protrude into the mounting space from the plug hole by the inner side of the bandage.

[0006] In one embodiment, the bandage assembly further comprises a support sheet, the air bag being connected to one side of the support sheet, and the plug being connected to the other side of the support sheet.

[0007] In one embodiment, the support sheet is provided with a clearance groove, the unlocking key has a pressing portion, and when the plug is inserted into the plug hole, the pressing portion is located in the clearance groove.

[0008] In one embodiment, part of the structure of the air bag covers the clearance groove.

[0009] In one embodiment, the air bag can be deformed inwardly into the clearance groove to press against the pressing portion under the pressing of an external force.

[0010] In one of the embodiments, the insert piece is provided with a limiting slot, the positioning seat is provided with a protrusion, and the insert piece is positioned by the cooperation between the limiting slot and the protrusion.

[0011] In one of the embodiments, the protrusion is provided with a first guide slope, and the insert piece slides along the first guide slope to make the limiting slot opposite to the protrusion when the insert piece is inserted into the insertion hole.

[0012] In one of the embodiments, the end of the insert piece away from the air bag is provided with a second guide slope, and the second guide slope guides the protrusion to slide to be opposite to the limiting slot when the insert piece is inserted into the insertion hole.

[0013] In one of the embodiments, the positioning seat is provided with a first abutting slope, the unlocking key is provided with a pressing part and a pressing part, the pressing part is provided with a second abutting slope, the second abutting slope is opposite to the first abutting slope, and the second abutting slope and the first abutting slope slide with each other to make the pressing part drive the positioning seat to make the protrusion exit from the limiting slot when the unlocking key is pressed through the pressing part.

[0014] In one of the embodiments, the positioning seat is provided with two first protrusions, the protrusion is located between the two first protrusions, the first abutting slope is formed on the first protrusion, the pressing part is provided with a second protrusion corresponding to the first protrusion, and the second abutting slope is formed on the second protrusion.

[0015] In one of the embodiments, two positioning seats are arranged in the mounting space, the lock catch includes two insert pieces, the two insert pieces can be matched with the two positioning seats correspondingly, the pressing part is arranged between the two positioning seats, and the pressing part synchronously drives the two positioning seats to move away from each other when the pressing part is pressed by an external force.

[0016] In one of the embodiments, the first elastic member is also used to drive the positioning seat to reset when the pressing force acting on the unlocking key is released, so that the second abutting slope and the first abutting slope slide with each other to drive the unlocking key to reset.

[0017] In one of the embodiments, the lock catch includes a second elastic member, the second elastic member is in contact with the unlocking key, and the second elastic member is used to drive the unlocking key to reset.

[0018] In one of the embodiments, when the first elastic member drives the positioning seat to reset to an initial position, the second elastic member can drive the unlocking key to continue to move away from the positioning seat, so that the second abutting slope and the first abutting slope are kept apart.

[0019] In one of the embodiments, when the first elastic member drives the positioning seat to return to the initial position, the interval distance between the first abutting slope and the second abutting slope is 0.3mm to 0.7mm.

[0020] In one of the embodiments, the strap includes a strap body and a connecting seat, the connecting seat is provided with a ventilation pipe member, the ventilation pipe member has a first interface and a second interface, the air bag has an air nozzle, when the air bag is matched with the strap, the air nozzle is connected with the first interface in communication, the second interface is used to communicate with an air pump in a device main body of a wearable device when the strap is connected with the device main body, and the air pump can inflate the air bag through the ventilation pipe member and the air nozzle.

[0021] In one of the embodiments, the connecting seat is provided with a mounting groove to form the mounting space, one of the side wall of the mounting groove and the unlocking key is provided with a sliding rail, and the other is provided with a sliding groove, the sliding rail and the sliding groove are slidingly matched, and both extend along the thickness direction of the strap.

[0022] In one of the embodiments, the air bag includes a first cavity and a second cavity, the first cavity and the second cavity are arranged along the width direction of the strap, and both are arranged along the length direction of the strap, at least two ventilation pipe members are arranged in the connecting seat, and the first cavity and the second cavity can be connected with the air pump through different ventilation pipe members.

[0023] In another aspect, the application provides a wearable device, which includes a device main body and the above-mentioned strap assembly, the device main body is provided with an air pump, and two ends of the device main body are connected with two ends of the strap assembly respectively, when the air bag is matched with the strap, the air pump is connected with the air bag in air communication, so that the air pump can inflate the air bag.

[0024] The strap assembly and wearable device of the present application, the strap assembly comprises a strap, an air bag and a lock, the lock comprises a tab, a positioning seat, a first elastic member and an unlocking key, the tab is connected to the air bag, the strap is formed with a mounting space and a jack connected to the mounting space, the positioning seat and the first elastic member are both arranged in the mounting space, when assembling the air bag to the strap, only need to insert the tab on the air bag into the jack to make the tab extend into the mounting space, and the positioning seat is used to push the tab in the mounting space to position the tab to limit the tab from pulling out of the jack, and then the assembly of the air bag and the strap is realized; since the unlocking key can drive the positioning seat to move relative to the strap under external force pressing and release the positioning of the positioning seat to the tab, therefore, when it is needed to disassemble the air bag from the strap, only need to press the unlocking key to release the positioning of the positioning seat to the tab, and then the tab can be pulled out of the jack. Thus, the strap assembly of the present application improves the operation convenience of installing and disassembling the air bag on the strap. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 Structure schematic diagram of the wearable device of an embodiment.

[0027] Figure 2 Schematic diagram of the strap assembly of the wearable device of an embodiment.

[0028] Figure 3 For Figure 2 The cross-sectional structure schematic diagram of the strap assembly along the I-I line is shown.

[0029] Figure 4 In the strap assembly of the wearable device of an embodiment, the schematic diagram of the tab of the lock cooperating with the positioning seat.

[0030] Figure 5 The exploded view of part of the structure of the strap assembly of the wearable device of an embodiment.

[0031] Figure 6 For Figure 5 The local enlarged view of part A of the structure of the strap assembly of the wearable device is shown.

[0032] Figure 7 In the strap assembly of the wearable device of an embodiment, the structure schematic diagram of the positioning seat.

[0033] Figure 8The schematic diagram of the cooperation between the insert piece of the lock and the positioning seat in the strap assembly of the wearable device of another embodiment.

[0034] Figure 9 The exploded view of the partial structure of the strap assembly of the wearable device of an embodiment.

[0035] Figure 10 The exploded view of the partial structure of the strap assembly of the wearable device of an embodiment.

[0036] Figure 11 The assembly schematic diagram of the positioning seat and the unlocking key when assembled to the connecting seat in the strap assembly of the wearable device of an embodiment.

[0037] Figure 12 The principle block diagram of the wearable device of an embodiment.

[0038] Reference signs: 100, wearable device; 10, device main body; 101, card slot; 11, middle frame; 12, display screen module; 20, strap assembly; 21, strap; 21a, first strap; 21b, second strap; 21c, insertion hole; 21d, mounting space; 211, strap body; 211a, recess; 212, connecting seat; 212a, clamping head; 212b, mounting groove; 212c, sliding rail; 213, air pipe piece; 213a, first interface; 213b, second interface; 214, sealing piece; 215, cover body; 215a, perforation; 22, air bag; 22a, air nozzle; 221, first cavity; 222, second cavity; 23, lock; 231, insert piece; 2311, limiting groove; 232, positioning seat; 2321, protrusion; 2322, first guide inclined surface; 2323, first abutting inclined surface; 2324, first protruding block; 233, first elastic piece; 234, unlocking key; 234a, pressing part; 234b, extruding part; 2341, second abutting inclined surface; 2342, sliding groove; 2343, second protruding block; 235, second elastic piece; 24, support sheet; 241, clearance groove. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0040] Reference Figure 1As shown, in some embodiments, the wearable device 100 includes a device body 10 and a strap assembly 20. The two ends of the device body 10 are connected to the two ends of the strap assembly 20, so as to wear the device body 10 to the wrist of a user by the strap assembly 20. The device body 10 includes a middle frame 11 and electronic components such as a circuit board, a battery, etc. disposed in the middle frame 11. The middle frame 11 is provided with a mounting cavity, and the electronic components such as the circuit board, the battery, etc. are disposed in the mounting cavity. The middle frame 11 can be made of a non-metal material such as plastic, rubber, silicone, wood, ceramic or glass, or can be made of a metal material such as stainless steel, aluminum alloy or magnesium alloy. The middle frame 11 can also be a metal injection molding part, that is, the structure rigidity of the middle frame 11 is ensured by a metal material, and the inner surface of the metal body is formed with protrusions, grooves, threaded holes, etc. for assembly and positioning by injection molding.

[0041] In some embodiments, the wearable device 100 is a smart watch, and the mounting cavity is provided with electronic components such as a battery, a circuit board, a display screen module 12, a biological sensor, etc. The circuit board can integrate electronic components such as a processor, a storage unit, a communication module, etc. of the wearable device 100, and the battery can supply power to the circuit board, the display screen module 12 and other electronic components. The display screen module 12 covers the mounting cavity and is connected to the middle frame 11, and can be used for displaying information and providing an interactive interface for a user. The display screen module 12 can further include a display screen and a cover plate covering the display screen. The display screen can be an LCD (Liquid Crystal Display) screen or an OLED (Organic Light-Emitting Diode) screen, etc. The cover plate can be a glass cover plate or a sapphire cover plate, etc. The cover plate is transparent and has a relatively high light transmittance, for example, the light transmittance of the cover plate is above 80%. The display screen module 12 can have a touch function, but the touch function is not necessary, and the display screen module 12 is also not necessary. The biological sensor can be used for detecting biological data such as heart rate, respiration rate, blood pressure or body fat, etc. In some embodiments, the biological sensor can also be used for detecting a motion state, for example, for counting steps. In other embodiments, the wearable device 100 can be a smart bracelet, etc.

[0042] The middle frame 11 is substantially in the shape of a rectangular frame, and the four corners of the rectangle can be processed by a chamfering process to be circularly arc-shaped to make the wearable device 100 have better appearance characteristics. In other embodiments, the middle frame 11 can also be in the shape of a circular frame. The side surface of the middle frame 11 can be provided with a matching structure for mounting the strap assembly 20, and the strap assembly 20 can be reliably connected to the middle frame 11 through the matching structure of the middle frame 11 to reliably wear the device body 10 to the hand of a user.

[0043] Continuing to refer to Figure 1In some embodiments, the band assembly 20 includes two bands 21, i.e., a first band 21a and a second band 21b. The device body 10 is provided with a clamping groove 101 at each of the opposite ends thereof, and one end of each of the first band 21a and the second band 21b is connected to the clamping groove 101 of the device body 10. The ends of the first band 21a and the second band 21b away from the device body 10 can be buckled to form a receiving space, so as to wear the device body 10 on the wrist of a user through the band assembly 20.

[0044] In some embodiments, the band assembly 20 includes one band 21. When the band assembly 20 is assembled to the device body 10, one end of the band 21 is connected to one end of the device body 10, and the other end of the band 21 is connected to the other end of the device body 10, so that the band 21 and the device body 10 form a receiving space. The number of bands 21 is not limited herein.

[0045] In combination with Figure 2 and Figure 3 In the wearable device 100 of the embodiments of the present application, the band assembly 20 includes an air bag 22 and a lock 23. The lock 23 is used to detachably connect the air bag 22 to the inner side of the band 21. In this way, when the air bag 22 is connected to the band 21 through the lock 23, the air bag 22 can be quickly assembled to the device body 10 together with the band 21. When the air bag 22 needs to be removed, the lock 23 can be used to conveniently detach the air bag 22 from the band 21.

[0046] Specifically, in combination with Figure 3 and Figure 4As shown, the lock catch 23 comprises a tab 231, a positioning seat 232, a first elastic member 233 and an unlocking key 234. The tab 231 is connected to the air bag 22, the strap 21 is formed with a mounting space 21d and a socket 21c communicated with the mounting space 21d. The positioning seat 232 and the first elastic member 233 are both arranged in the mounting space 21d. The positioning seat 232 is used to position the tab 231 protruding into the mounting space 21d from the socket 21c under the pushing of the first elastic member 233 to limit the tab 231 from being pulled out of the socket 21c, and the unlocking key 234 is used to drive the positioning seat 232 to move relative to the strap 21 against the elastic force of the first elastic member 233 under the pressing of external force to release the positioning of the tab 231 by the positioning seat 232. In this embodiment, when assembling the air bag 22 to the strap 21, only need to insert the tab 231 on the air bag 22 into the socket 21c to make the tab 231 protrude into the mounting space 21d, and then use the first elastic member 233 to push the positioning seat 232 to position the tab 231 protruding into the mounting space 21d to limit the tab 231 from being pulled out of the socket 21c, and then realize the assembly of the air bag 22 and the strap 21; since the unlocking key 234 can drive the positioning seat 232 to move relative to the strap 21 against the elastic force of the first elastic member 233 under the pressing of external force to release the positioning of the tab 231 by the positioning seat 232, when it is needed to disassemble the air bag 22 from the strap 21, only need to press the unlocking key 234 to release the positioning of the tab 231 by the positioning seat 232, and then the tab 231 can be pulled out of the socket 21c. Thus, the strap assembly 20 of the present application improves the operation convenience of installing and disassembling the air bag 22 on the strap 21.

[0047] The socket 21c is penetrated by the inner side of the strap 21 to the mounting space 21d, so that the tab 231 can protrude into the mounting space 21d from the socket 21c by the inner side of the strap 21. For the strap 21 with flat structure, when the tab 231 protrudes into the mounting space 21d from the socket 21c by the inner side of the strap 21, it can provide a larger operation surface for the wearer, and when the strap assembly 20 is worn on the wrist or other positions of the user, the socket 21c and the tab 231 located on the inner side of the strap 21 will not be exposed, so as to maintain the overall appearance and texture.

[0048] In combination Figure 5 and Figure 6 As shown, in some embodiments, the strap assembly 20 further comprises a support sheet 24. The air bag 22 is connected to one side of the support sheet 24, and the tab 231 is connected to the other side of the support sheet 24. In this embodiment, on the one hand, the support sheet 24 is used as a support carrier of the air bag 22, and the support sheet 24 has a good shaping effect on the air bag 22, so that the air bag 22 is not easy to be rolled up during the inflation and deflation process, thereby improving the wearing comfort of the strap assembly 20.

[0049] The support sheet 24 can be made of metal materials such as stainless steel, aluminum alloy or copper alloy.

[0050] Continuing with the description Figure 5 and Figure 6 As shown in FIG. 8, in some embodiments, the support sheet 24 is provided with a clearance groove 241, and the unlocking key 234 has a pressing portion 234a. When the plug 231 is inserted into the insertion hole 21c, the pressing portion 234a is located in the clearance groove 241, so that the finger of the wearer can conveniently press the pressing portion 234a at the position corresponding to the clearance groove 241 to facilitate the operation of the unlocking key 234 to release the positioning of the plug 231 by the positioning seat 232. Therefore, the structure improves the operation convenience of disassembling the air bag 22.

[0051] The shape of the clearance groove 241 can be a long circle, a U shape, a rectangle, or an ellipse. The shape of the clearance groove 241 is not limited herein. It should be noted that when the clearance groove 241 adopts a U shape, the clearance groove 241 leaves a space for preventing the finger, so that the finger can conveniently press the pressing portion 234a located in the clearance groove 241.

[0052] In some embodiments, the pressing portion 234a protrudes from the inner side of the strap 21 to facilitate the pressing operation of the pressing portion 234a.

[0053] Further, the partial structure of the air bag 22 covers the clearance groove 241. The covering of the clearance groove 241 by the partial structure of the air bag 22 causes the pressing portion 234a to be covered, thereby avoiding the discomfort caused by the contact of the wearer with the edge of the clearance groove 241 or the pressing portion 234a during wearing.

[0054] In some embodiments, the air bag 22 can deform towards the clearance groove 241 under external pressure to press the pressing portion 234a. In this embodiment, since the air bag 22 can deform towards the clearance groove 241 under external pressure, it is convenient to press the pressing portion 234a by pressing the air bag 22, so as to eliminate the discomfort caused by directly pressing the pressing portion 234a by the finger. Therefore, the structure improves the operation comfort.

[0055] in combination with Figure 3 , Figure 4 and Figure 7As shown, in some embodiments, the insert piece 231 has a limiting slot 2311, and the positioning seat 232 has a protrusion 2321. The positioning seat 232 positions the insert piece 231 by cooperation of the protrusion 1321 and the limiting slot 2311. It can be understood that the insert hole 21c, which is formed in the binding belt 21 and communicates with the installation space 21d, can be inserted into the installation space 21d so that the limiting slot 2311 is opposite to the protrusion 2321. Therefore, when the insert piece 231 is inserted into the installation space 21d so that the limiting slot 2311 is opposite to the protrusion 2321, the positioning seat 232 moves relative to the binding belt 21 under the elastic force of the first elastic member 233, so that the protrusion 2321 extends into the limiting slot 2311, thereby the protrusion 2321 limits the insert piece 231 from being pulled out of the insert hole 21c.

[0056] In some embodiments, the limiting slot 2311 can be in the form of a through hole, and in some embodiments, the limiting slot 2311 can also be a slot that does not penetrate the insert piece 231, which can play a clamping role, and no limitation is made thereto.

[0057] In this embodiment, the unlocking key 234 is used to drive the positioning seat 232 to withdraw the protrusion 2321 from the limiting slot 2311 against the elastic force of the first elastic member 233 under the pressing of external force. In this way, the cooperation of the protrusion 2321 and the limiting slot 2311 is released, so that the insert piece 231 can be pulled out of the insert hole 21c, thereby conveniently completing the disassembly of the air bag 22. It can be understood that when it is necessary to assemble the air bag 22 to the binding belt 21, it is only necessary to insert the insert piece 231 on the air bag 22 into the insert hole 21c so that the limiting slot 2311 of the insert hole 21c cooperates with the protrusion 2321 of the positioning seat 232.

[0058] It should be noted that the number of the positioning seat 232 can be one or two. For example, in combination with Figure 4 As shown, the number of the positioning seat 232 is two, and correspondingly, the number of the insert piece 231 is also two. In this embodiment, when the air bag 22 cooperates with the binding belt 21, the two insert pieces 231 correspond to the two positioning seats 232.

[0059] In combination with Figure 2 and Figure 3 As shown, in some embodiments, the two positioning seats 232 and the two insert pieces 231 are arranged along the width direction of the binding belt 21, and the unlocking key 234 is correspondingly arranged between the two positioning seats 232. In this way, the unlocking key 234 is used to simultaneously drive the positioning seats 232 to move in opposite directions, so that the corresponding positioning seats 232 release the cooperation of the protrusion 2321 and the limiting slot 2311 of the insert piece 231.

[0060] In combination with Figure 4 and Figure 7As shown, the protrusion 2321 is provided with a first guide slope 2322, when the plug 231 is inserted into the insertion hole 21c, the plug 231 slides along the first guide slope 2322 to make the limiting groove 2311 opposite to the protrusion 2321. In this embodiment, the guiding effect of the first guide slope 2322 on the plug 231 improves the flexibility of the operation of matching the plug 231 with the positioning seat 232.

[0061] It should be noted that in some embodiments, the end of the plug 231 away from the air bag 22 is provided with a second guide slope (not shown in the figure), when the plug 231 is inserted into the insertion hole 21c, the second guide slope guides the protrusion 2321 to slide to be opposite to the limiting groove 2311. In this embodiment, the guiding effect of the second guide slope on the protrusion 2321 also improves the flexibility of the operation of matching the plug 231 with the positioning seat 232.

[0062] It can be understood that as long as one of the first guide slope 2322 and the second guide slope exists, the effect of improving the flexibility of the operation of matching the plug 231 with the positioning seat 232 can be achieved. Of course, when the first guide slope 2322 and the second guide slope exist at the same time, the relative movement between the first guide slope 2322 and the second guide slope will be easier, and in turn, it will be easier to match the plug 231 with the positioning seat 232.

[0063] In combination with Figure 3 and Figure 4 As shown, in some embodiments, the unlocking key 234 has a connected pressing part 234a and extruding part 234b. The pressing part 234a is a structure part for the unlocking key 234 to accept external force pressing, when the external force exerts pressing force on the unlocking key 234 through the pressing part 234a, the unlocking key 234 moves relative to the positioning seat 232, so that the extruding part 234b extrudes the positioning seat 232, thus the positioning seat 232 overcomes the elastic force of the first elastic member 233 and moves relative to the strap 21.

[0064] In combination with Figure 4 and Figure 7As shown, in some embodiments, the positioning seat 232 is provided with a first abutting slope 2323, and the extruding part 234b is provided with a second abutting slope 2341 opposite to the first abutting slope 2323. When the unlocking key 234 is pressed by the pressing part 234a, the second abutting slope 2341 and the first abutting slope 2323 abut and slide against each other, so that the extruding part 234b drives the positioning seat 232 to exit the protrusion 2321 from the limiting hole 2311. In this embodiment, since the first abutting slope 2323 and the second abutting slope 2341 are both inclined, they are easy to slide against each other, and by using this inclined arrangement, the unlocking key 234 can drive the positioning seat 232 to move away from the limiting slot 2311 with the protrusion 2321 when the unlocking key 234 is moved under the pressing force, so that the protrusion 2321 is conveniently and reliably exited from the limiting slot 2311.

[0065] Further, the positioning seat 232 is provided with two first protrusions 2324, and the protrusion 2321 is located between the two first protrusions 2324. The extruding part 234b of the unlocking key 234 is provided with a second protrusion 2343 corresponding to the first protrusion 2324. The first abutting slope 2323 is formed on the first protrusion 2324, and the second abutting slope 2341 is formed on the second protrusion 2343. In this embodiment, the two first protrusions 2324 can be smoothly moved under the pushing of the corresponding second protrusions 2343, so that the positioning seat 232 can be subjected to the pushing force of the two second protrusions 2343 of the extruding part 234b, thereby improving the movement stability of the positioning seat 232.

[0066] It should be noted that the above description is only a combination of the embodiments of the locking buckle 23 and the unlocking key 234. Figure 8 As shown, in the embodiment in which two positioning seats 232 are arranged in the installation space 21d, and the locking buckle 23 includes two insertion pieces 231, the extruding part 234b of the unlocking key 234 is arranged between the two positioning seats 232, and the extruding part 234b is provided with a second protrusion 2343 corresponding to the position of the first protrusion 2324 on each of the two positioning seats 232. When the pressing part 234a is pressed by an external force, the corresponding second protrusion 2343 drives the first protrusion 2324 to move, and then the extruding part 234b synchronously drives the two positioning seats 232 to move away from each other.

[0067] In some embodiments, the first elastic member 233 is also used to drive the positioning seat 232 to reset movement when the pressing force on the unlocking key 234 is released, so that the second abutting slope 2341 and the first abutting slope 2323 slide with each other to drive the unlocking key 234 to reset movement. In this way, the unlocking key 234 can reset without setting a reset structure, so as to simplify the structural complexity of the lock catch 23. It should be noted that the reset movement of the unlocking key 234 means that the unlocking key 234 is not in the unlocking operation of withdrawing the protrusion 2321 from the limiting groove 2311. For example, when the pressing force on the unlocking key 234 is released, the first elastic member 233 restores the deformation, thereby driving the positioning seat 232 to reset movement. Thus, the first abutting slope 2323 and the second abutting slope 2341 slide with each other, thereby realizing the reset movement of the unlocking key 234. It should be noted that the positioning seat 232 can move towards the unlocking key 234 in a direction perpendicular to the movement direction of the unlocking key 234 when resetting.

[0068] Again in combination with Figure 3 and Figure 4 As shown in FIG. 5, the lock catch 23 comprises a second elastic member 235, which is in contact with the unlocking key 234, and is used to drive the unlocking key 234 to reset movement. In this embodiment, the reset movement of the unlocking key 234 is realized by the second elastic member 235, so as to meet the requirement of repeated pressing of the unlocking key 234 during the installation and removal of the airbag 22.

[0069] It should be noted that the first elastic member 233 can also reset the unlocking key 234 by driving the positioning seat 232 to reset movement, so that in the embodiment in which the lock catch 23 comprises the second elastic member 235, the second elastic member 235 and the first elastic member 233 can jointly provide a reset driving force to the unlocking key 234, thereby improving the reliability of the reset movement of the unlocking key 234.

[0070] The first elastic member 233 can be a spring or an elastic rod. The second elastic member 235 can be a spring or an elastic rod. The type of the first elastic member 233 and the second elastic member 235 is not limited herein.

[0071] The setting position of the first elastic member 233 and the second elastic member 235 is not limited herein, as long as it can meet the need of the corresponding elastic reset function. For example, one end of the first elastic member 233 is fixed in the installation space 21d, and the other end abuts against the positioning seat 232, so as to generate a pressing force on the positioning seat 232 towards the side where the extruding part 234b of the unlocking key 234 is located. For another example, in the embodiment where two positioning seats 232 are arranged in the installation space 21d, the first elastic member 233 can be connected between the two positioning seats 232, so that the two positioning seats 232 have a mutual approaching movement tendency, that is, when the extruding part 234b releases the extruding force on the two positioning seats 232, the two positioning seats 232 approach each other under the elastic force of the first elastic member 233. Correspondingly, the second elastic member 235 can be arranged on the side of the extruding part 234b away from the pressing part 234a, or one end of the second elastic member 235 is connected to the side of the extruding part 234b towards the pressing part 234a, so that the extruding part 234b has a movement tendency towards the side where the pressing part 234a is located.

[0072] In combination Figure 8 As shown in some embodiments, when the first elastic member 233 drives the positioning seat 232 to reset to the initial position, the second elastic member 235 can drive the unlocking key 234 to continue to move away from the positioning seat 232, so that the second pressing slope 2341 and the first pressing slope 2323 are kept spaced apart. In this embodiment, the reset of the positioning seat 232 to the initial position means that the positioning seat 232 returns to the position before being pressed by the inserted piece 231 and the unlocking key 234. Since in this embodiment, the second pressing slope 2341 and the first pressing slope 2323 are kept spaced apart, and the unlocking key 234 needs to move to the position where the second pressing slope 2341 and the first pressing slope 2323 abut against each other before acting on the positioning seat 232, even if the unlocking key 234 is pressed by mistake when the air bag 22 does not need to be detached, the unlocking key 234 will not act on the positioning seat 232 immediately, thereby avoiding the situation that the air bag 22 is loosened from the strap 21 due to the mistaken triggering.

[0073] Of course, when the first elastic element 233 drives the positioning seat 232 to return to its initial position, the gap between the first abutting inclined surface 2323 and the second abutting inclined surface 2341 is not necessarily better the larger it is. A larger gap results in a longer travel distance when the positioning seat 232 is driven out of the limiting groove 2311 using the unlocking key 234, which is detrimental to the compactness of the structural components and operational efficiency. In some embodiments, when the first elastic element 233 drives the positioning seat 232 to return to its initial position, the gap between the first abutting inclined surface 2323 and the second abutting inclined surface 2341 is 0.3mm to 0.7mm. For example, it is 0.3mm, 0.4mm, 0.5mm, 0.6mm, or 0.7mm. In this embodiment, by setting the distance between the first abutting inclined surface 2323 and the second abutting inclined surface 2341 when the positioning seat 232 is reset to the disposal position to 0.3mm to 0.7mm, the probability of false triggering is reduced, while the travel distance of the unlocking key 234 driving the positioning seat 232 to remove the protrusion 2321 from the limiting groove 2311 is reduced.

[0074] Combination Figure 9 and Figure 10 As shown, in some embodiments, the strap 21 includes a strap body 211 and a connecting seat 212. The connecting seat 212 is used to connect the strap body 211 to the device body 10. The connecting seat 212 can be integrally molded into the strap body 211 by injection molding, or a groove 211a can be provided in the strap body 211, and the connecting seat 212 can be installed in the groove 211a. The connecting seat 212 can be connected to the device body 10 by a snap-fit ​​connection, or the connecting seat 212 can be connected to the device body 10 by a locking structure. For example, the end of the connecting seat 212 is provided with a locking head 212a, which extends into the locking groove 101 of the device body 10. The locking head 212a is locked by the locking structure on the device body 10, thereby connecting the strap 21 to the device body 10.

[0075] It should be noted that the connecting seat 212 serves as the connection structure between the strap body 211 and the device body 10, and the connecting seat 212 can be a bead. That is, in some embodiments, the positioning seat 232 is disposed in the bead of the watch strap, for example... Figure 9 , Figure 10 The connector 212 is a head piece; one end of the head piece is provided with a connecting part for connecting the strap body 211 and the device body 10, for example... Figure 9 The shown is a clip 212a; the clip 212a extends into the clip slot 101 of the device body 10, and the clip 212a is locked by the locking structure on the device body 10, thereby connecting the strap 21 to the device body 10.

[0076] Combination Figure 6 andFigure 9 As shown, in some embodiments, the connecting seat 212 is further provided with a ventilation pipe 213, so that the connection of the ventilation pipe 213 can be completed synchronously in the process of connecting the strap body 211. When the strap 21 is inserted into the clamping groove 101 of the device body 10 through the connecting seat 212, the connection of the strap 21 and the device body 10 is achieved, and the ventilation pipe 213 at the end of the strap 21 is communicated with the air path interface (not shown) of the air pump (not shown) in the slotted 101 of the device body 10.

[0077] In combination Figure 6 As shown, in some embodiments, the ventilation pipe 213 has a first interface 213a and a second interface 213b. The air bag 22 has an air nozzle 22a, which is communicated with the first interface 213a when the air bag 22 is matched with the strap 21. The device body 10 is provided with an air pump, which is communicated with the second interface 213b when the strap body 211 is connected with the device body 10 through the connecting seat 212. In this way, the air pump can communicate the air bag 22 through the ventilation pipe 213 and the air nozzle 22a to inflate the air bag 22.

[0078] In some embodiments, the first interface 213a and the second interface 213b can be in the form of an air nozzle.

[0079] It should be noted that, in some embodiments, the ventilation pipe 213 can be integrally formed on the connecting seat 212, for example, the connecting seat 212 is provided with a ventilation channel having the first interface 213a and the second interface 213b. For example, the ventilation pipe 213 can be formed by punching on the connecting seat 212, or can be formed by inserting an additional pipe.

[0080] In combination Figure 10 As shown, the first interface 213a is provided with a sealing element 214, which surrounds the circumferential side of the air nozzle 22a and plays a sealing role between the air nozzle 22a and the inner wall of the first interface 213a when the air nozzle 22a is matched with the first interface 213a. The sealing element 214 includes but is not limited to a sealing ring or a sealing sleeve.

[0081] In some embodiments, the air bag 22 is a double-cavity air bag. For example, in combination Figure 3 As shown, the air bag 22 includes a first cavity 221 and a second cavity 222. The first cavity 221 and the second cavity 222 are arranged along the width direction of the strap 21, and both are arranged along the length direction of the strap 21. By inflating and deflating the first cavity 221 and the second cavity 222, the expansion degree of the two long sides of the strap 21 is adjusted, so as to facilitate the adjustment of the wearing comfort of the strap assembly 20.

[0082] It should be noted that, in combination Figure 2As shown, at least two air pipe fittings 213 are arranged in the connecting seat 212, so that the first bladder cavity 221 and the second bladder cavity 222 can communicate with the air pump in the device body 10 through different air pipe fittings 213. A first air valve is arranged on the air path between the air pump and the first bladder cavity 221, and a second air valve is arranged on the air path between the air pump and the second bladder cavity 222. When the air pump is working, the inflation state of the first bladder cavity 221 and the second bladder cavity 222 can be controlled respectively by controlling the opening and closing of the first air valve and the second air valve. In some embodiments, the air pipe fitting 213 connected to the first bladder cavity 221 and the air pipe fitting 213 connected to the second bladder cavity 222 are both connected to the air pump through a regulating valve, so that the regulating valve is used for shunting to adjust the flow of air inflating the first bladder cavity 221 and the second bladder cavity 222 through the corresponding air pipe fitting 213.

[0083] In combination Figure 10 As shown, in some embodiments, the connecting seat 212 is provided with a mounting groove 212b, and the positioning seat 232 and the first elastic member 233 are both mounted in the mounting groove 212b. In this embodiment, the mounting groove 212b of the connecting seat 212 provides a mounting space 21d for the positioning seat 232 and the first elastic member 233, so as to make full use of the space provided by the connecting seat 212, thereby facilitating the overall miniaturization of the strap assembly 20; and since the positioning seat 232 and the first elastic member 233 are both mounted in the mounting groove 212b, the positioning seat 232 and the first elastic member 233 can be mounted as a whole in the strap 21 after being assembled in the connecting seat 212, thereby improving the assembly efficiency.

[0084] The strap 21 further comprises a cover 215. The cover 215 covers the slot of the mounting groove 212b, so that after the structures such as the positioning seat 232 and the first elastic member 233 are mounted in the mounting groove 212b, the cover 215 can prevent these structures from falling out of the mounting groove 212b. In this embodiment, the cover 215 has a through hole 215a corresponding to the insertion hole 21c, so as to adapt to the need of the insertion piece 231 entering the mounting groove 212b from the through hole 215a to cooperate with the positioning seat 232.

[0085] Further, the positioning seat 232 is slidingly arranged in the mounting groove 212b, so as to improve the movement stability of the positioning seat 232 relative to the connecting seat 212.

[0086] In some embodiments, the unlocking key 234 is slidingly matched with the connecting seat 212 along the thickness direction of the strap 21, so as to improve the movement stability of the unlocking key 234 relative to the connecting seat 212. For example, in combination Figure 10 and Figure 11As shown, the side wall of the mounting groove 212b is provided with a sliding rail 212c, and the unlocking key 234 is provided with a sliding groove 2342, the sliding rail 212c and the sliding groove 2342 are in sliding fit, and both extend along the thickness direction of the strap 21. In some embodiments, the sliding fit sliding rail 212c and the sliding groove 2342 can be interchanged in position, that is, the sliding groove 2342 is arranged on the side wall of the mounting groove 212b, and the sliding rail 212c is arranged on the unlocking key 234. In this embodiment, the cooperation of the sliding rail 212c and the sliding groove 2342 can still realize the stable sliding between the unlocking key 234 and the connecting seat 212.

[0087] It should be noted here that the thickness direction of the strap 21 is also the pressing direction of the unlocking key 234 when unlocking. In some embodiments, the insertion piece 231 can be inserted into the insertion hole 21c along the thickness direction of the strap 21 to realize the cooperation of the insertion piece 231 and the positioning seat 232.

[0088] In combination Figure 12 , Figure 12 A circuit module block diagram of the wearable device 100 provided in the embodiments of the present application is shown. The wearable device 100 can include a radio frequency (RF) circuit 501, a memory 502 including one or more computer readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509, and the like. Those skilled in the art can understand that the wearable device 100 can include more or less components than those shown in the figure, or combine some components, or different component arrangements. Figure 12 The structure of the wearable device 100 shown in the figure does not constitute a limitation on the wearable device 100, and can include more or less components than those shown in the figure, or combine some components, or different component arrangements.

[0089] The radio frequency circuit 501 can be used for transmitting and receiving information, or receiving and sending signals in the process of calling, in particular, receiving the downlink information of the base station and handing over to one or more processors 508 for processing; in addition, sending the data related to the uplink to the base station. Generally, the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to global system for mobile communication (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), long term evolution (LTE), email, short messaging service (SMS), etc.

[0090] The memory 502 can be used to store applications and data. The memory 502 stores executable codes in the application. The application can constitute various functional modules. The processor 508 executes various functional applications and data processing by running the application stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required by a function (such as a sound playing function, an image playing function, etc.), etc.; the data storage area can store data created according to the use of the wearable device 100 (such as audio data, a phone book, etc.), etc. In addition, the memory 502 can include a high-speed random access memory, and can also include a non-volatile memory, for example, at least one magnetic disk storage device, a flash memory device, or other volatile solid state memory device. Accordingly, the memory 502 can also include a memory controller to provide access for the processor 508 and the input unit 503 to the memory 502.

[0091] Input unit 503 can be used to receive input numbers, character information, or user characteristic information (such as fingerprints), and to generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control. Specifically, in one embodiment, input unit 503 may include a touch-sensitive surface and other input devices. The touch-sensitive surface, also known as a touch antenna assembly or touchpad, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch-sensitive surface), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch orientation and the signal generated by the touch operation, transmitting the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, sends it to the processor 508, and can receive and execute commands from the processor 508.

[0092] Furthermore, the touch-sensitive surface can cover the liquid crystal panel. When the touch-sensitive surface detects a touch operation on or near it, it transmits the information to the processor 508 to determine the type of touch event. Subsequently, the processor 508 provides corresponding visual output on the liquid crystal panel according to the type of touch event.

[0093] The display unit 504 can be used to display information input by the user or information provided to the user, as well as various graphical user interfaces of the wearable device 100, which can be composed of graphics, text, icons, videos, and any combination thereof.

[0094] Although Figure 12 In this embodiment, the touch-sensitive surface and the liquid crystal panel are two separate components for implementing input and output functions. However, in some embodiments, the touch-sensitive surface and the liquid crystal panel can be integrated to achieve both input and output functions. It is understood that the antenna assembly 100 may include an input unit 503 and a display unit 504.

[0095] The wearable device 100 may also include at least one sensor 505, such as a proximity sensor, a motion sensor, and other sensors. The proximity sensor may turn off the LCD panel and / or backlight when the wearable device 100 is moved to the ear. As a type of motion sensor, a gravity acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity, and can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition functions (such as pedometers, taps), etc. Other sensors that the wearable device 100 may also be equipped with, such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0096] The audio circuit 506 can provide an audio interface between the user and the wearable device 100 through a speaker and a microphone. The audio circuit 506 can convert received audio data into an electrical signal, transmit the electrical signal to the speaker, and convert the electrical signal into an audible signal output by the speaker. On the other hand, the microphone can convert a sound signal collected into an electrical signal, and the audio circuit 506 can convert the electrical signal into audio data, output the audio data to the processor 508 for processing, and transmit the audio data to another wearable device 100 via the radio frequency circuit 501 or output the audio data to the memory 502 for further processing. The audio circuit 506 can further include a headset jack to provide a communication between a peripheral headset and the wearable device 100.

[0097] The wireless fidelity (WiFi) belongs to a short-range wireless transmission technology. The wearable device 100 can help the user to send and receive emails, browse web pages, and access streaming media, etc. through the wireless fidelity module 507, which provides the user with wireless broadband Internet access. Although Figure 12 The wireless fidelity module 507 is shown, but it can be understood that it does not belong to the essential components of the wearable device 100, and can be omitted as needed without changing the essence of the application.

[0098] The processor 508 is the control center of the wearable device 100, which connects all parts of the wearable device 100 through various interfaces and lines, executes various functions of the wearable device 100 and processes data by running or executing the application programs stored in the memory 502 and calling the data stored in the memory 502, and thus monitors the wearable device 100 as a whole. Optionally, the processor 508 can include one or more processing cores; preferably, the processor 508 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 508.

[0099] The wearable device 100 further includes a power supply 509 for supplying power to various components. Preferably, the power supply 509 can be logically connected to the processor 508 through a power management system, so as to realize the functions of managing charging, discharging, and power consumption management, etc. through the power management system. The power supply 509 can further include one or more than one direct current or alternating current power supply, a recharging system, a power supply failure detection circuit, a power supply converter or inverter, a power supply state indicator, and any other components.

[0100] Although Figure 12The wearable device 100 can further include a Bluetooth module and the like, which are not shown here. In a specific implementation, the above modules can be implemented as independent entities, or combined as the same or several entities, and the specific implementation of the above modules can refer to the method embodiments described above, which will not be described here.

[0101] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0102] The above embodiments only express several implementation manners of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A strap assembly, characterized by, The strap, the air bag and the lock are provided, the lock is used for detachably connecting the air bag to the inner side of the strap, the lock comprises a plug, a positioning seat, a first elastic member and an unlocking key, the plug is connected to the air bag, the strap is formed with a mounting space and a plug hole communicated with the mounting space, the positioning seat and the first elastic member are both arranged in the mounting space, the positioning seat is used for positioning the plug inserted into the mounting space from the plug hole under the pushing of the first elastic member to limit the plug from being pulled out of the plug hole, and the unlocking key is used for driving the positioning seat to move relative to the strap under the pressing of external force to release the positioning of the plug by the positioning seat against the elastic force of the first elastic member.

2. The strap assembly of claim 1, wherein, The plug hole is penetrated by the inner side of the strap to the mounting space, so that the plug can be inserted into the mounting space from the plug hole by the inner side of the strap.

3. The strap assembly of claim 1 or 2, wherein, A supporting sheet is further provided, the air bag is connected to one side of the supporting sheet, and the plug is connected to the other side of the supporting sheet.

4. The strap assembly of claim 3, wherein, The supporting sheet is provided with a clearance groove, the unlocking key has a pressing part, and when the plug is inserted into the plug hole, the pressing part is located in the clearance groove.

5. The strap assembly of claim 4, wherein, Part of the structure of the air bag covers the clearance groove.

6. The strap assembly of claim 5, wherein, The air bag can be deformed into the clearance groove under the pressing of external force to press the pressing part.

7. The strap assembly of claim 1, wherein, The plug has a limiting groove, the positioning seat has a protrusion, and the positioning seat positions the plug through cooperation of the protrusion and the limiting groove.

8. The strap assembly of claim 7, wherein, The protrusion is provided with a first guide inclined surface, when the plug is inserted along the plug hole, the plug slides along the first guide inclined surface to make the limiting groove opposite to the protrusion; And / or, an end of the plug away from the air bag is provided with a second guide inclined surface, when the plug is inserted along the plug hole, the second guide inclined surface guides the protrusion to slide to be opposite to the limiting groove.

9. The strap assembly of claim 7 or 8, wherein, The positioning seat is provided with a first abutting inclined surface, the unlocking key has a pressing part and a pressing part connected thereto, the pressing part is provided with a second abutting inclined surface, the second abutting inclined surface is opposite to the first abutting inclined surface, when the unlocking key is pressed through the pressing part, the second abutting inclined surface and the first abutting inclined surface slide relative to each other, so that the pressing part drives the positioning seat to make the protrusion exit from the limiting groove.

10. The strap assembly of claim 9, wherein, The positioning seat is provided with two first protrusions, the protrusion is located between the two first protrusions, the first abutting inclined surface is formed on the first protrusion, the pressing part is provided with a second protrusion corresponding to the first protrusion, and the second abutting inclined surface is formed on the second protrusion. And / or, two positioning seats are arranged in the mounting space, the lock comprises two plugs, the two plugs can be correspondingly matched with the two positioning seats, and the pressing part is arranged between the two positioning seats, when the pressing part is pressed by external force, the pressing part synchronously drives the two positioning seats to move away from each other.

11. The strap assembly of claim 9, wherein, The first elastic member is also used to drive the positioning seat to reset when the pressing force applied to the unlocking key is released, so that the second abutting slope and the first abutting slope slide with each other to drive the unlocking key to reset.

12. The strap assembly of claim 9, wherein, The lock catch comprises a second elastic member, which is in contact with the unlocking key, and is used to drive the unlocking key to reset.

13. The strap assembly of claim 12, wherein, When the first elastic member drives the positioning seat to reset to the initial position, the second elastic member can drive the unlocking key to continue to move away from the positioning seat, so that the second abutting slope and the first abutting slope are kept apart.

14. The strap assembly of claim 13, wherein, When the first elastic member drives the positioning seat to reset to the initial position, the distance between the first abutting slope and the second abutting slope is 0.3mm to 0.7mm.

15. The strap assembly of claim 1, wherein, The strap comprises a strap body and a connecting seat, the connecting seat is provided with a ventilation pipe element, the ventilation pipe element has a first interface and a second interface, the air bag has an air nozzle, when the air bag is matched with the strap, the air nozzle is in communication with the first interface, the second interface is used to communicate with an air pump in a device main body of a wearable device when the strap is connected with the device main body, and the air pump can inflate the air bag through the ventilation pipe element and the air nozzle.

16. The strap assembly of claim 15, wherein, The connecting seat is provided with a mounting groove to form the mounting space, one of the side wall of the mounting groove and the unlocking key is provided with a sliding rail, and the other is provided with a sliding groove, the sliding rail and the sliding groove are in sliding cooperation, and both extend along the thickness direction of the strap.

17. The strap assembly of claim 15, wherein, The air bag comprises a first cavity and a second cavity, the first cavity and the second cavity are arranged along the width direction of the strap, and both are arranged along the length direction of the strap, at least two ventilation pipe elements are arranged in the connecting seat, and the first cavity and the second cavity can be in communication with the air pump through different ventilation pipe elements.

18. A wearable device, comprising: The device main body is provided with an air pump, and two ends of the device main body are connected to two ends of the strap assembly, when the air bag is matched with the strap, the air pump is in air path communication with the air bag, so that the air pump can inflate the air bag.

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