A wearable device

Abstract

The present application provides a wearable device, which relates to the technical field of electronic equipment. The wearable device includes a watch body, an airbag, and an airbag cover. The airbag is detachably connected to one end of the watch body so that the airbag covers a smaller area of ​​the watch body, thereby reserving space for installing other modules on the watch body. The airbag includes a first layer structure and a second layer structure that are stacked on each other, the first layer structure has a first cavity, the second layer structure has a second cavity, and the first cavity is connected to the second cavity, so that the inflation space of the airbag is larger. The airbag can be fixed to the watch body by an airbag cover that is detachably connected to the watch body to simplify the disassembly and assembly process of the airbag and the watch body. The use of the wearable device provided by the present application can effectively improve the functional integration level of the wearable device and improve the measurement accuracy of blood pressure.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 31, 2020, with application number 202011633586.7 and application name “A Wearable Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of electronic equipment, and in particular to a wearable device. Background Art

[0004] Nowadays, people are paying more and more attention to their own and their families' health, and blood pressure measurement is particularly important. However, arm blood pressure monitors or wrist blood pressure monitors are relatively large and inconvenient to carry and use.

[0005] Wearable devices such as smartwatches and wristbands that monitor blood pressure are currently a key component of mobile, online health monitoring and are widely praised by users. However, the presence and bulk of the airbag in some current blood pressure watches leaves insufficient space for other functional modules, hindering their functional integration and resulting in a poor user experience. Summary of the Invention

[0006] The present application provides a wearable device to improve the functional integration of the wearable device and improve the measurement accuracy of blood pressure.

[0007] In a first aspect, the present application provides a wearable device, which may include a watch body, an airbag, and an airbag cover. The airbag includes a first layer structure and a second layer structure stacked on top of each other, the first layer structure having a first cavity, the second layer structure having a second cavity, the first cavity and the second cavity being connected to form an air cavity of the airbag, which can make the air cavity of the airbag larger, thereby facilitating the improvement of the accuracy of blood pressure detection. In addition, the airbag cover is detachably connected to the watch body, and the airbag can be detachably connected to one end of the watch body through the airbag cover, which can reduce the coverage area of ​​the watch body by the airbag, thereby allowing the watch body to reserve space for the installation of other functional modules, thereby improving the functional integration of the wearable device.

[0008] In one possible implementation of the present application, in order to realize the blood pressure detection function of a wearable device, the watch body may include an air chamber, an air pump, and a pressure sensor. The air chamber has an air nozzle mounting port and an inlet / exhaust port, the air supply port of the air pump is connected to the inlet / exhaust port, and the pressure sensor is used to detect the air pressure in the air chamber. In addition, the second layer structure of the airbag is provided with an air nozzle, the air hole of the air nozzle is connected to the second cavity, and the air nozzle can be plugged into the air nozzle mounting port. In this way, the gas enters the pump body from the air inlet of the air pump, and then passes through the air supply port of the air pump and the inlet / exhaust port of the air chamber and enters the air chamber. As the gas in the air chamber increases, the gas enters the airbag through the air nozzle to inflate the airbag. After the air cavity of the airbag is completely filled with gas, the air pressure in the air chamber gradually increases. At this time, the real-time air pressure value can be read by the pressure sensor until the air pressure value reaches the set value, and the air pump stops working. After the blood pressure measurement is completed, since the air pressure in the air bag and air chamber is greater than the external atmospheric pressure, the gas will flow out from the inlet / exhaust port of the air chamber, enter the air pump through the air supply port of the air pump, and be discharged through the air pump exhaust port, thus completing a blood pressure measurement.

[0009] Since in the present application, the flow path of the gas during the inflation and exhaust process of the airbag can be the same, the air chamber can be provided with a gas nozzle mounting port in the present application, and the airbag can also have a gas nozzle. This can make the part of the airbag used for connection with the watch body smaller, thereby making the coverage area of ​​the airbag on the watch body smaller.

[0010] When a wearable device is in use, the airbag is typically bent to ensure it fits snugly against the wearer's body. To ensure that gas can flow smoothly within the airbag's cavity even when bent, a first flexible insert may be provided within the first layer. The first flexible insert may be at least partially fixed to the inner wall of the first layer, and the first flexible insert may extend in the same direction as the first layer.

[0011] Similarly, a second flexible insert can be provided within the second layer, one end of which can be connected to the air nozzle. The arrangement of the first and second flexible inserts allows for a gap between the sidewalls of the airbag when it is bent, thereby maintaining an unobstructed air cavity within the airbag, minimizing the impact on measurement accuracy and ensuring the functionality of the product.

[0012] Additionally, support protrusions can be provided on the end surface of the air nozzle located on the second layer structure. The number of support protrusions can be one or more. The support protrusions can be located around the air hole of the air nozzle. In this way, even if the airbag bends, the sidewall of the airbag near the air nozzle, supported by the support protrusions, will prevent the air hole from being blocked. This allows external air to smoothly pass through the air nozzle and enter the airbag, thereby ensuring the correct airbag inflation volume, minimizing the impact on measurement accuracy, and ensuring the product's functionality.

[0013] In one possible implementation of this application, a mounting groove may be provided at one end of the bottom surface of the watch body to connect the airbag to the watch body, so that the airbag and airbag cover can be installed in the mounting groove. This improves the appearance of the watch body and enhances the user's wearing experience.

[0014] Furthermore, by installing the airbag and airbag cover in the mounting slot, the bottom surface of the watch body can be left with space for other functional modules. For example, a PPG module can be installed on the bottom surface of the watch body. The PPG module can be used for continuous heart rate monitoring. By installing both the airbag and the PPG module on a wearable device, the single blood pressure measurement function using the airbag can be integrated with the continuous heart rate measurement function of the PPG module, solving the problem of continuous blood pressure measurement through precise algorithm calculations. Furthermore, an ECG detection module can be installed on the bottom surface of the watch body to implement the electrocardiogram detection function of the wearable device.

[0015] There are many ways to detachably connect the airbag cover to the watch body. In one possible implementation, a snap-in is provided on each of two opposing sidewalls of the mounting slot. The airbag cover includes a cover body, a first snap, and a second snap, with the first and second snaps being provided at opposite ends of the body. When the airbag cover is installed in the mounting slot, the first snap engages with one snap-in, and the second snap engages with the other snap-in.

[0016] The first buckle can be a movable buckle that can move toward or away from the second buckle. A first accommodating cavity and a first mounting hole are provided on the cover body. The first buckle is accommodated in the first accommodating cavity, and a portion of the first buckle can extend out of the first accommodating cavity through the first mounting hole. The airbag cover also includes a first elastic member, which is accommodated in the first accommodating cavity. In the direction from the first buckle to the second buckle, the first elastic member is located between the first buckle and the sidewall of the first accommodating cavity and elastically abuts against the first buckle and the sidewall of the first accommodating cavity, respectively. Thus, when the airbag cover is connected to the watch body, the first buckle can be completely accommodated in the first accommodating cavity. The first elastic member is squeezed and accumulates elastic force. When the first buckle is aligned with a snap-in notch in the mounting groove of the watch body, the first buckle, under the elastic force of the first elastic member, can extend out of the first accommodating cavity through the first mounting hole and engage with the snap-in notch, thereby achieving a secure connection between the airbag cover and the watch body.

[0017] In order to remove the airbag cover from the watch body, the airbag cover can also include a handle that can be used to drive the first buckle to move toward or away from the second buckle. A second mounting hole is also provided on the side of the cover body facing away from the watch body. The second mounting hole is connected to the first accommodating cavity. In addition, the first buckle is provided with a socket. When the handle is specifically provided, a plug is provided on the side of the handle facing the watch body. The handle can be installed in the second mounting hole, and the plug is plugged into the socket. When the handle is turned and moved toward or away from the second handle, the handle can drive the first buckle to move toward or away from the second handle.

[0018] In one possible implementation of the present application, the second clip can be a fixed clip, i.e., the second clip is fixedly connected to the cover body. When connecting the airbag cover to the watch body, the second clip can be first inserted into one of the clips in the watch body's mounting slot, and then the first clip can be engaged with the other clip, thereby achieving connection between the airbag cover and the watch body. Furthermore, when removing the airbag cover from the watch body, the first clip can be first withdrawn from the first clip into the first accommodating cavity of the cover body, and then the second clip can be withdrawn from the corresponding clip to remove the airbag cover.

[0019] It's worth noting that since the airbag portion fits into the mounting slot, when the airbag cover is snapped onto the watch body, the portion of the airbag housed in the mounting slot is pressed against the watch body, effectively connecting the airbag to the watch body. Furthermore, after removing the airbag cover from the watch body, the airbag can be easily removed, achieving a detachable connection between the two. This allows for the airbag to be replaced as needed, meeting user requirements and enhancing the user experience.

[0020] In another possible implementation of the present application, the second buckle can also be a movable buckle, movable toward or away from the first buckle. The cover body further includes a second accommodating cavity and a third mounting hole. The second buckle can be accommodated in the second accommodating cavity, and a portion of the second buckle can extend out of the second accommodating cavity through the third mounting hole. Furthermore, the airbag cover also includes a second elastic member, which is accommodated in the second accommodating cavity. In the direction from the second buckle to the first buckle, the second elastic member is located between the second buckle and the sidewalls of the second accommodating cavity, and elastically abuts against the second buckle and the sidewalls of the second accommodating cavity, respectively. Thus, when the airbag cover is connected to the watch body, the second buckle can first be completely accommodated in the second accommodating cavity, and the second elastic member is squeezed to accumulate elastic force. When the second buckle is aligned with a latching opening in the mounting groove of the watch body, the elastic force of the second elastic member allows the second buckle to extend out of the second accommodating cavity through the third mounting hole and engage with the latching opening, thereby achieving a secure connection between the airbag cover and the watch body.

[0021] In this implementation, the airbag cover is connected to the watch body by pressing it into the mounting groove of the watch body. The first and second clips, under the elastic force of their corresponding elastic members, engage with the clips on the corresponding sides, thereby achieving connection between the airbag cover and the watch body, and providing a more convenient installation method. Furthermore, to remove the airbag cover from the watch body, the first clip is first withdrawn from the first retaining opening into the first accommodating cavity of the cover body, and the second clip is then withdrawn from the corresponding retaining opening to remove the airbag cover.

[0022] In addition, the airbag cover may further include a fixing block fixed to the second accommodating cavity, wherein the fixing block has a limiting hole, and the second elastic member may be inserted into the limiting hole, thereby effectively improving the movement stability of the second elastic member.

[0023] To facilitate installation of the first clip, the first elastic member, and the first accommodating cavity, as well as the second clip, the second elastic member, and the second accommodating cavity, openings may be provided on the side of the first and second accommodating cavities facing the watch body. Furthermore, the cover body also includes a clip cover plate, which is an integrally molded structure and covers both openings to enhance the appearance of the airbag cover.

[0024] It's worth noting that since the airbag portion can be installed in the mounting slot, in this implementation, the airbag can be fixedly connected to the airbag cover, and the portion of the airbag used to connect to the watch body is located between the cover body and the snap cover. This allows the airbag and watch body to be detachably connected through the detachable connection between the airbag cover and the watch body.

[0025] In addition, in order to improve the reliability of the connection between the airbag and the airbag cover, a limit block can be provided on the cover body, and a limit opening can be provided on the part of the airbag used for connecting with the body, and the limit block is inserted into the limit opening.

[0026] When the airbag cover plate is connected to the watch body via a snap-fit ​​method, in addition to the aforementioned method of providing a snap on the airbag cover plate and a snap notch on the watch body, the snap can also be provided on the watch body, while the snap notch is provided on the airbag cover plate. Specifically, the airbag cover plate can include a cover plate body having a third snap notch and a fourth snap notch located at opposite ends of the cover plate body. Furthermore, the watch body is provided with a third snap notch and a fourth snap notch, which are movable toward or away from each other. The third snap notch can be engaged with the third snap notch, and the fourth snap notch can be engaged with the fourth snap notch. Thus, the airbag cover plate can be attached to the watch body by engaging the third snap notch and the fourth snap notch. When the third snap notch is disengaged from the third snap notch and / or the fourth snap notch is disengaged from the fourth snap notch, the airbag cover plate can be removed from the watch body, making installation and removal of the airbag cover plate and the watch body more convenient.

[0027] To facilitate mounting the airbag on the airbag cover, the cover can include a pressure plate secured to the cover body. This allows the portion of the airbag with the valve located between the pressure plate and the cover body, allowing the airbag and cover to be mounted together by securing the pressure plate to the cover body. Furthermore, the pressure plate can be provided with a valve hole through which the valve extends, facilitating connection between the valve and the watch body.

[0028] In addition to the above-mentioned structure, the airbag cover may also include an elastic protrusion. The cover body has a receiving cavity, and the elastic protrusion can be set in the receiving cavity, and the elastic protrusion can move in a direction toward or away from the receiving cavity. When the elastic protrusion is specifically set, it can include a convex cap and a third elastic member, and the third elastic member elastically abuts against the convex cap and the bottom wall of the receiving cavity. In addition, the clamping plate can also be provided with a convex cap hole, and the convex cap can extend from the convex cap hole to the side of the clamping plate away from the cover body. When the convex cap moves in the direction toward the receiving cavity, it can compress the third elastic member, so that the third elastic member accumulates elastic force. When the third elastic member releases the elastic force, it can drive the convex cap to move in a direction away from the receiving cavity.

[0029] In the present application, before the compression plate is secured to the cover body, the position of the compression plate on the cover body can be determined. In one possible implementation, the compression plate may include a first end and a second end, the first end and the second end being disposed opposite each other. The first end may be disposed toward the fourth bayonet, and the first end may be provided with a snap-fitting portion. Furthermore, if the cover body has a receiving cavity, and the sidewalls of the cavity are provided with a snap-fitting slot, the snap-fitting portion may be inserted into the snap-fitting slot to secure the compression plate to the cover body.

[0030] The pressing plate and the cover body can be fixed by, but not limited to, screw locking. In a specific implementation, a screw hole can be provided on the pressing plate, so that the pressing plate and the cover body can be fixedly connected by screws passing through the screw hole and locking them to the cover body.

[0031] In the specific configuration of the watch body, the watch body may be provided with a first receiving groove and a second receiving groove. The first receiving groove is connected to the mounting groove via a first through-hole, and the second receiving groove is connected to the mounting groove via a second through-hole. In this manner, the third buckle can be accommodated in the first receiving groove, and a fourth elastic member can be disposed between the third buckle and the sidewall of the first receiving groove. The fourth elastic member elastically abuts the third buckle and the sidewall of the first receiving groove, respectively. A portion of the third buckle can extend from the first through-hole into the mounting groove. Furthermore, the fourth buckle can be accommodated in the second receiving groove, and a fifth elastic member is disposed between the fourth buckle and the sidewall of the second receiving groove. The fifth elastic member elastically abuts the fourth buckle and the sidewall of the second receiving groove, respectively. A portion of the fourth buckle can extend from the second through-hole into the mounting groove. When the third and fourth buckles move in opposite directions, they compress the corresponding elastic members, causing the elastic members to accumulate elastic force. When the elastic members release the elastic force, the third and fourth buckles can move in opposite directions.

[0032] In one possible implementation of the present application, the bottom surface of the watch body may further include a third through-hole, which may be in communication with the first receiving slot. Furthermore, the watch body may further include a snap button, and the third snap button may have an opening. The snap button passes through the opening and may be mounted in the third through-hole. Furthermore, the snap button may be movable along the axis of the third through-hole, and during this movement, the snap button may drive the third snap button toward or away from the first receiving slot, thereby enabling the snap button to control the movement of the third snap button.

[0033] In addition, a fourth through hole may be provided on the watch body, communicating with the second accommodating groove, with the opening direction of the fourth through hole being opposite to the opening direction of the mounting groove. Furthermore, the watch body is provided with a snap bracket, which is mounted in the fourth through hole. The snap bracket may be provided with a protrusion, and the fourth snap may be provided with a recess, wherein the protrusion is inserted into the recess and the protrusion and the recess have a clearance fit. In this way, the protrusion can limit the movement of the fourth snap toward the third snap, and the snap bracket can also provide support for the fourth snap.

[0034] To prevent the snap bracket from falling off the watch body, the watch body can also be provided with a snap cover. The snap bracket can be located between the fourth snap and the snap cover, and the snap cover can abut against the snap bracket. In this way, the snap cover can be fixedly connected to the watch body to ensure that the snap cover supports the snap bracket.

[0035] In one possible implementation of the present application, a magnet can be provided in the airbag cover, and a Hall element matching the magnet can be provided in the watch body, so as to determine whether the airbag cover is installed on the watch body by detecting whether the magnet and the Hall element are connected. When it is detected that the magnet and the Hall element are connected, it is determined that the airbag cover is in the installed state, and the wearable device can be used normally. When it is detected that the magnet and the Hall element are not connected, it is determined that the airbag cover is in the uninstalled state. At this time, the wearable device can sound an alarm to remind the user that the internal structure of the watch body is exposed at the air nozzle installation port, so that the user can take corresponding measures in time to avoid the risk of water or foreign matter entering the watch body due to long-term exposure of the internal structure of the watch body.

[0036] In addition to the aforementioned snap-on connection, the airbag cover and watch body can also be removably connected via magnetic attraction. Specifically, the airbag cover can include a cover body and a first magnetic element. The first magnetic element is disposed within the cover body. A second magnetic element can be disposed within the mounting slot. When the airbag cover is installed within the mounting slot, the first and second magnetic elements attract each other.

[0037] In this implementation, since the airbag portion can be installed in the mounting groove, the airbag cover can be pressed against the watch body during installation, effectively connecting the airbag to the watch body. Furthermore, after removing the airbag cover from the watch body, the airbag can be easily removed from the watch body, achieving a detachable connection between the two. This allows for the airbag to be replaced as needed, meeting user requirements and enhancing the user experience.

[0038] In one possible implementation of the present application, the wearable device may further include a protective cover that is disposed over the first layer structure of the airbag and is detachably connected to the first layer structure. By enclosing the first layer structure over the first layer structure, the first layer structure is protected, thereby reducing the risk of damage to the first layer structure. Furthermore, the material of the protective cover can be carefully selected to enhance user comfort.

[0039] When configuring the protective cover, the cover may include a cover body and a rim. The cover body covers at least the surface of the first layer structure facing away from the second layer structure, and the rim is disposed around the edge of the cover body. When the protective cover is placed over the first layer structure, the rim can improve the reliability of the connection between the protective cover and the first layer structure, preventing the protective cover from falling off the first layer structure while the user is wearing the wearable device.

[0040] In a second aspect, the present application also provides a method for manufacturing an airbag, which may include: first, nesting a first layer structure and a second layer structure, each open at both ends, wherein the first layer structure has a first cavity, the second layer structure has a second cavity, and the first layer structure is located within the second cavity. Then, partially connecting the first layer structure and the second layer structure to form a connection region. Thereafter, a through hole is formed in the connection region to connect the first cavity with the second cavity. Finally, the second layer structure is flipped so that the first layer structure and the second layer structure form an overlapping structure.

[0041] In a possible implementation of the present application, connecting partial areas of the first layer structure and the second layer structure to form a connection area specifically includes: connecting partial areas of the first layer structure and the second layer structure by a hot melt process to form a connection area.

[0042] In one possible implementation of the present application, after flipping the second layer structure so that the first layer structure and the second layer structure overlap, the method further includes: flattening the first layer structure and the second layer structure. Then, attaching the air nozzle to the second layer structure. Finally, sealing both ends of the first layer structure and the second layer structure to form a sealed airbag.

[0043] The airbag obtained by the preparation method of the airbag of the present application has a connection area where the first layer structure and the second layer structure formed by the hot melt process do not occupy the inflation space of the airbag. In this way, the inflatable space of the cavity of the two layer structures can be maximized within a limited size, which is beneficial to improving the measurement accuracy of wearable devices using the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic structural diagram of a wearable device provided in one embodiment of the present application;

[0045] Figure 2 A schematic diagram of the structure of an airbag provided in one embodiment of the present application;

[0046] Figure 3 for Figure 2 A magnified view of the local structure at point A;

[0047] Figure 4 A cross-sectional view of a wearable device is provided for one embodiment of the present application;

[0048] Figures 5a to 5c A schematic diagram of the blood pressure measurement principle of a wearable device provided in one embodiment of the present application;

[0049] Figure 6 An exploded diagram of a wearable device provided in one embodiment of the present application;

[0050] Figure 7 A schematic structural diagram of an airbag cover provided in one embodiment of the present application;

[0051] Figure 8 An exploded view of an airbag cover provided in one embodiment of the present application;

[0052] Figure 9 A schematic structural diagram of an airbag cover provided in another embodiment of the present application;

[0053] Figure 10 An exploded view of an airbag cover provided in another embodiment of the present application;

[0054] Figure 11 A schematic diagram of a partial structure of an airbag cover provided in one embodiment of the present application;

[0055] Figure 12 A schematic diagram of a partial structure of an airbag cover provided in another embodiment of the present application;

[0056] Figure 13 A schematic structural diagram of an airbag cover provided in another embodiment of the present application;

[0057] Figure 14 A schematic diagram of the assembly process of an airbag cover and an airbag according to an embodiment of the present application;

[0058] Figure 15 A schematic diagram of the assembly structure of an airbag cover and an airbag provided in one embodiment of the present application;

[0059] Figure 16 A schematic diagram of the assembly structure of an airbag cover and an airbag provided in another embodiment of the present application;

[0060] Figure 17 An exploded view of the assembly structure of an airbag cover and an airbag provided in another embodiment of the present application;

[0061] Figure 18 A schematic structural diagram of a compression plate provided in one embodiment of the present application;

[0062] Figure 19a and Figure 19b for Figure 16 BB cross-sectional view of the structure shown in;

[0063] Figure 20a and Figure 20b A schematic diagram of the structure of a meter body provided in one embodiment of the present application;

[0064] Figure 21 An exploded view of a watch body provided in one embodiment of the present application;

[0065] Figure 22 for Figure 20a CC cross-sectional view of the body shown in ;

[0066] Figure 23 A top view of the assembly structure of the buckle bracket and the fourth buckle provided in one embodiment of the present application;

[0067] Figure 24 A schematic diagram of the structure of an airbag, an airbag cover, and a meter body before installation provided in one embodiment of the present application;

[0068] Figure 25 A schematic diagram of the structure of an airbag cover plate assembled with an airbag and a watch body before installation according to an embodiment of the present application;

[0069] Figure 26 A schematic diagram of the structure after the airbag cover and the watch body are installed according to an embodiment of the present application;

[0070] Figure 27 for Figure 26 DD cross-sectional view of the structure shown in;

[0071] Figure 28 An exploded view of an airbag cover provided in another embodiment of the present application;

[0072] Figure 29 A schematic structural diagram of an airbag cover provided in another embodiment of the present application;

[0073] Figure 30 An exploded view of a watch body provided in another embodiment of the present application;

[0074] Figure 31 A schematic structural diagram of a meter body provided in another embodiment of the present application;

[0075] Figure 32 An exploded diagram of a wearable device provided in one embodiment of the present application;

[0076] Figure 33 A schematic structural diagram of an airbag provided in another embodiment of the present application;

[0077] Figure 34 A schematic diagram of a bent state of an airbag provided in one embodiment of the present application;

[0078] Figure 35 A schematic diagram of a bent state of an airbag provided in another embodiment of the present application;

[0079] Figure 36 A schematic diagram of the internal structure of an airbag provided in another embodiment of the present application;

[0080] Figure 37A schematic diagram of the structure of a gas nozzle provided in one embodiment of the present application;

[0081] Figure 38a for Figure 33 EE cross-sectional view of the airbag shown in;

[0082] Figure 38b and Figure 38c for Figure 33 FF cross-sectional view of the airbag shown in;

[0083] Figures 39a to 39f A schematic diagram of a process for preparing an airbag according to an embodiment of the present application;

[0084] Figures 40a to 40h A schematic diagram of a process for preparing an airbag according to another embodiment of the present application;

[0085] Figures 41a to 41h A schematic diagram of a process for preparing an airbag according to another embodiment of the present application;

[0086] Figures 42a to 42e A schematic diagram of a process for preparing an airbag according to another embodiment of the present application;

[0087] Figure 43 A schematic structural diagram of an airbag provided in another embodiment of the present application;

[0088] Figure 44a A front view of a protective cover provided in accordance with an embodiment of the present application;

[0089] Figure 44b A side view of a protective cover provided in accordance with an embodiment of the present application;

[0090] Figure 44c A rear view of a protective cover provided in accordance with an embodiment of the present application;

[0091] Figure 45 A schematic diagram of the assembly process of a protective cover and an airbag provided in one embodiment of the present application;

[0092] Figure 46 A schematic diagram of the assembly structure of a protective cover and an airbag provided in one embodiment of the present application.

[0093] Reference numerals:

[0094] 1- meter body; 101- air pump; 1011- air supply port; 102- air chamber; 1021- air path; 1022- inlet / exhaust port;

[0095] 1023 - air nozzle mounting port; 103 - pressure sensor; 104 - mounting slot; 1041 - bayonet; 1042 - recessed portion;

[0096] 1043 - second magnetic element; 105 - first receiving groove; 106 - second receiving groove; 107 - first through hole; 108 - second through hole;

[0097] 109 - third through hole; 110 - stepped surface; 111 - fourth through hole;

[0098] 2-airbag; 201-air nozzle; 2011-sealing ring; 2012-support protrusion; 2013-air hole;

[0099] 202-limiting opening; 203a-first layer structure; 203b-second layer structure; 2031-first cavity; 2032-second cavity;

[0100] 204 - flexible built-in; 204a - first flexible built-in; 204b - second flexible built-in; 205 - through hole;

[0101] 206 - connection area; 207a - first curved surface structure; 207b - second curved surface structure; 207c - third curved surface structure;

[0102] 207d-fourth curved surface structure; 208a-first covering surface structure; 208b-second covering surface structure; 3-PPG module;

[0103] 4-ECG detection module; 5-airbag cover; 501-cover body; 5011a, 5011b, 5011c-accommodation cavity;

[0104] 50111 - slot; 50112 - limit column; 50113 - guide structure; 5012a, 5012b, 5012bc - mounting holes;

[0105] 5013-limiting block; 5014-third bayonet; 5015-fourth bayonet; 502-first buckle; 5021-limiting column;

[0106] 5022 - socket; 50221 - limiting protrusion; 503 - second buckle; 5031 - limiting column; 504a, 504b - elastic member;

[0107] 505- snap cover; 5051- avoidance; 506- buckle handle; 5061- plug; 50611- limit groove; 507- fixed block;

[0108] 5071-limiting hole; 508-first magnetic element; 509-magnetic element cover; 510-pressing plate; 5101-air nozzle hole;

[0109] 5102-clamping portion; 5103-screw hole; 5104-convex cap hole; 511-elastic protrusion; 51101-convex cap;

[0110] 511011-flange structure; 51102-elastic part; 512-third buckle; 51201-elastic part; 51202-limiting column;

[0111] 51203-opening; 513-fourth buckle; 51301-elastic member; 51302-limiting column; 51303-recessed portion;

[0112] 514- snap button; 51401- inclined surface; 515- limiter; 516- snap bracket; 5161- protrusion; 6- protective cover;

[0113] 601-body; 602-edge. DETAILED DESCRIPTION

[0114] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0115] To facilitate understanding of the wearable device provided in the embodiments of the present application, the following first describes its application scenarios. The wearable device can be, but is not limited to, a portable electronic device such as a smartwatch or smart bracelet. Taking a smartwatch as an example, it can be worn on the user's wrist to detect the user's blood pressure and other physical signs at any time, thereby achieving a prediction of the user's physical condition, thereby effectively avoiding dangerous secondary diseases such as stroke caused by high blood pressure.

[0116] Traditional smartwatches with blood pressure monitoring functions generally include a watch body and an airbag. To improve detection accuracy, the airbag is typically large, almost covering the entire bottom surface of the watch body. This leaves insufficient space for other functional modules, resulting in a relatively limited functionality of the smartwatch. In the various embodiments of the present application, the bottom surface of the watch body refers to the contact surface of the watch body, which is intended to directly contact the user's wearing part. The watch body may also include a display surface, which may be located opposite the contact surface.

[0117] Furthermore, when the airbag is inflated by the air pump, the gas flowing out of the pump exerts a certain amount of force on the airbag. To prevent the airbag from separating from the pump, the airbag must be secured to the watch body. However, the fixing structure of the airbag to the watch body in some traditional smartwatches is complex, making it impossible or difficult to disassemble, which greatly inconveniences smartwatch maintenance and component replacement.

[0118] Based on this, the embodiments of the present application provide a wearable device to improve the functional integration of the wearable device and improve the measurement accuracy of blood pressure. The wearable device provided in the present application can be a smart watch or smart bracelet worn on the wrist, or it can be an electronic device worn on other parts of the human body that can perform blood pressure detection. Regardless of the specific form of the wearable device, it can be set up with reference to the wearable device of the present application. For ease of understanding, in the following embodiments of the present application, the structure of the wearable device is described in detail using a smart watch as an example.

[0119] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a wearable device provided in one embodiment of the present application. The wearable device may include a watch body 1 and an airbag 2. The watch body 1 and airbag 2 are detachably connected, allowing the airbag 2 to be easily removed and replaced with another strap. This meets various user requirements and improves the user experience.

[0120] In order to realize the blood pressure detection function of wearable devices, refer to Figure 2 One end of the airbag 2 is provided with an air nozzle 201, which is connected to the air cavity of the airbag 2. Figure 3 The side wall of the gas nozzle 201 can be provided with an annular groove structure, and a sealing ring 2011 can be installed in the annular groove structure ( Figure 3 Not shown, please refer to Figure 4 ) so as to seal the air nozzle 201. In this way, when the air nozzle 201 is inserted into the watch body 1, refer to Figure 4 , which can improve the air tightness of the connection between the airbag 2 and the watch body 1, thereby improving the accuracy of blood pressure measurement.

[0121] Reference Figure 5a , Figure 5a The specific structure of the watch body 1 for realizing blood pressure detection is shown. In specific implementation, the watch body 1 has an air pump 101, an air chamber 102 and a pressure sensor 103. Among them, the air pump 101 serves as an air source and is responsible for air supply and exhaust. The air chamber 102 includes a cavity structure. The air chamber 102 can be composed of two parts that are interlocked, or it can be an integrally molded structure. The air chamber 102 has an air nozzle mounting port 1023 and an inlet / exhaust port 1022. The air nozzle 201 of the air bag 2 can be plugged into the air nozzle mounting port 1023, and the air supply port 1011 of the air pump 101 is connected to the inlet / exhaust port 1022. The pressure sensor 103 is installed on the side wall of the air chamber 102. For example, the pressure sensor 103 can be set on the side of the air chamber 102 close to the air bag 2, and the pressure sensor 103 can measure the air pressure in the air chamber 102.

[0122] Furthermore, an air path 1021 is provided within the air chamber 102 to guide the gas within the air chamber 102, thereby forming a gas circulation loop. The air path 1021 communicates with the air pump 101 via an inlet / exhaust port 1022 and with the airbag 2 via a nozzle 201 plugged into a nozzle mounting port 1023. Furthermore, a pressure sensor 103 can be connected to the air path 1021 to measure the air pressure within the air path 1021.

[0123] Refer to Figure 5b and Figure 5c , Figure 5b and Figure 5c It is a schematic diagram of the structure of the connection between the airbag 2 and the watch body 1. Figure 5c The side wall of the air chamber 102 close to the airbag 2 is omitted in order to illustrate the flow of gas in the air path 1021 when the air pump 101 inflates and deflates the airbag 2. First, the inflation process of the airbag 2 is introduced. Figure 5c The arrows in the figure indicate the direction of gas flow during the process of the air pump 101 inflating the air bag 2: Figure 5a ) operates, gas enters the pump body through the air inlet of the air pump 101 (not shown in the figure), then passes through the air supply port of the air pump 101 and the inlet / exhaust port 1022 of the air chamber 102, and enters the air path 1021 of the air chamber 102. As the gas in the air chamber 102 increases, the gas enters the airbag 2 through the air nozzle 201 to inflate the airbag 2. After the air cavity of the airbag 2 is completely filled with gas, the air pressure in the air path 1021 gradually increases. At this time, the real-time air pressure value can be read by the pressure sensor 103 located in the air chamber 102. When the air pressure value reaches the set value, the air pump 101 stops operating.

[0124] After the blood pressure measurement is completed, since the air pressure in the airbag 2 and the air chamber 102 is greater than the external atmospheric pressure, the gas will flow out from the inlet / exhaust port 1022 of the air chamber 102, enter the air pump 101 through the air supply port of the air pump 101, and be discharged through the air discharge port of the air pump 101, thus completing a blood pressure measurement.

[0125] As can be understood from the above description of the wearable device's blood pressure detection process, in this application, a single air nozzle 201 is sufficient on the airbag 2. This allows the portion of the airbag 2 where the air nozzle 201 is located to connect to one end of the watch body 1. By adjusting the length and width of the airbag 2, as well as its internal structure, the airbag 2 can compress the wrist artery during blood pressure measurement, thereby achieving the wearable device's blood pressure detection function. In this case, the airbag 2 covers a smaller area of ​​the watch body 1, leaving space on the watch body 1 for the installation of other functional modules.

[0126] At present, photoplethysmograph (PPG) modules are widely used in health detection equipment. They can receive light reflected by the human body through photodetectors and obtain the user's heart rate value through calculation and analysis. Figure 6 , Figure 6 This is a schematic diagram of the structure of a wearable device provided by one embodiment of the present application. A PPG module 3 may also be provided on the wearable device provided by the present application. The PPG module 3 may also be provided on the bottom surface of the watch body 1. Alternatively, the PPG module 3 may be provided in the middle area of ​​the watch body 1 to improve the detection accuracy of the PPG module 3. Since the PPG module 3 can continuously measure a person's heart rate, by simultaneously providing the airbag 2 and the PPG module 3 on the wearable device, the function of performing a single blood pressure measurement using the airbag 2 can be integrated with the continuous heart rate measurement function of the PPG module 3, and the problem of continuous blood pressure measurement can be solved through precise algorithm calculations.

[0127] Continue to refer to Figure 6 The wearable device of the embodiment of the present application may also be provided with an electrocardiogram (ECG) detection module. The ECG detection module 4 may also be provided on the bottom surface of the watch body 1. In addition, the ECG detection module 4 may also be provided in the middle area of ​​the watch body 1, thereby realizing the electrocardiogram detection function of the wearable device.

[0128] With the wearable device of the present application, functional modules such as the airbag 2, PPG module 3, and ECG detection module 4 can be simultaneously arranged on the watch body 1, thereby improving the functional integration of the wearable device. In addition, the single blood pressure measurement function of the airbag 2 is integrated with the continuous heart rate measurement function of the PPG module 3, and continuous blood pressure measurement is achieved through algorithmic calculation, which is conducive to improving blood pressure measurement accuracy.

[0129] There are many ways to detachably connect the airbag 2 to the watch body 1, which can be found in the following examples. Figure 6In a possible embodiment of the present application, the wearable device may further include an airbag cover 5, which is detachably connected to the watch body 1. In order to achieve a fixed connection between the airbag cover 5 and the watch body 1, a mounting groove 104 may be provided at the end of the watch body 1. The mounting groove 104 may be provided on the bottom surface of the watch body 1, and the air nozzle mounting port 1023 may be provided in the mounting groove 104. The portion of the airbag 2 provided with the air nozzle 201 may be accommodated in the mounting groove 104, and the air nozzle 201 may be plugged into the air nozzle mounting port 1023, while part or all of the airbag cover 5 is accommodated in the mounting groove 104. In addition, a bayonet 1041 is provided on each of the two oppositely disposed side walls of the mounting groove 104. It can be understood that the mounting groove 104 may be provided on the bottom surface of the watch body 1 so that the airbag 2 can fit the wearing part and improve the appearance of the wearable device.

[0130] When setting the airbag cover 5, refer to Figure 7 , Figure 7 The figure is a schematic structural diagram of an airbag cover 5 according to an embodiment of the present application. The airbag cover 5 may include a cover body 501, and a first latch 502 and a second latch 503 disposed on the cover body 501. The first latch 502 and the second latch 503 are disposed at opposite ends of the cover body 501. The first latch 502 is a movable latch, while the second latch 503 is a fixed latch. The first latch 502 can move toward or away from the second latch 503. The second latch 503 may be, for example, a protruding structure disposed at an end of the cover body 501 and fixedly connected to the end of the cover body 501.

[0131] Reference Figure 8 , Figure 8 The specific structure of the first clip 502 of one embodiment of the present application is shown. In this embodiment of the present application, the cover body 501 can be, but is not limited to, an integrally molded structure. In order to mount the first clip 502 on the cover body 501, the cover body 501 is provided with a receiving cavity 5011a and a mounting hole 5012a communicating with the receiving cavity 5011a. The mounting hole 5012a is provided on the end surface of the cover body 501 facing away from the second clip 503. The first clip 502 is accommodated in the receiving cavity 5011a, and a portion of the first clip 502 can extend from the mounting hole 5012a to the outside of the receiving cavity 5011a. In the direction from the first buckle 502 to the second buckle 503, an elastic member 504a is provided between the first buckle 502 and the side wall of the accommodating cavity 5011a. The elastic member 504a can elastically abut the side walls of the first buckle 502 and the accommodating cavity 5011a respectively, so that the first buckle 502 can move in the direction close to or away from the second buckle 503 under the action of the elastic force of the elastic member 504a.

[0132] Continue to refer to Figure 8 In one embodiment of the present application, the elastic member 504a may be a spring. There may be one spring, which abuts against the middle region of the first buckle 502 to stabilize the movement of the first buckle 502. Alternatively, there may be at least two springs to further enhance the stability of the movement of the first buckle 502. Furthermore, a limiting post 5021 may be provided on the first buckle 502, so that the spring can be sleeved onto the limiting post 5021, thereby preventing the spring from falling off and ensuring a secure connection between the spring and the first buckle 502.

[0133] In addition, the side of the accommodating cavity 5011a facing the watch body 1 has an opening, which facilitates the installation of the first clip 502 and the elastic member 504. The airbag cover 5 may also include a clip cover 505, which covers the opening and can be fixed to the cover body 501 by, but is not limited to, bonding, snapping, clamping, threading, or welding. This improves the structural stability of the airbag cover 5 while enhancing the integrity of its appearance.

[0134] In one possible embodiment, the buckle cover 505 can also be pressed against the first buckle 502 so that the buckle cover 505 supports the first buckle 502, thereby reducing the shaking of the first buckle 502 during movement. It is understood that the pressing force between the buckle cover 505 and the first buckle 502 is relatively small to avoid causing significant resistance to the movement of the first buckle 502.

[0135] Refer to Figure 7 and Figure 8 The airbag cover 5 also includes a buckle 506. A mounting hole 5012b is provided on the side of the cover body 501 facing away from the watch body 1. The mounting hole 5012b is communicated with the accommodating cavity 5011a. In addition, a socket 5022 is provided on the first buckle 502, and a plug 5061 is provided on the buckle 506. The socket 5022 may be one or at least two, and the number of plugs 5061 may be the same as the number of sockets 5022. The plug 5061 may be provided on the side surface of the buckle 506 facing the watch body 1. In this way, the buckle 506 may be installed on the airbag cover 5 from the mounting hole 5012b, and the plug 5061 on the buckle 506 may be plugged into the socket 5022 of the first buckle 502. Please refer to Figure 7 In the direction from the first buckle 502 to the second buckle 503, the gap between the buckle hand 506 and the hole wall of the mounting hole 5012b is matched, so that the buckle hand 506 can move in the mounting hole 5012b in the direction close to or away from the second buckle 503. It is understandable that the size of the gap between the buckle hand 506 and the hole wall of the mounting hole 5012b can be set according to the length of the portion of the first buckle 502 extending outside the accommodating cavity 5011. Figure 7 The surface of the buckle 506 facing away from the watch body 1 serves as the operating surface for the user's fingers. This surface can be set to a concave-convex surface to increase the friction between the fingers and the buckle 506 and improve the convenience of user operation.

[0136] Reference Figure 8 A limiting protrusion 50221 may be provided on the side wall of the insertion hole 5022, and a limiting groove 50611 may be provided on the plug 5061 of the buckle 506. The limiting protrusion 50221 and the limiting groove 50611 cooperate and engage with each other, thereby achieving the limit between the buckle 506 and the first buckle 502. In some embodiments of the present application, a limiting groove 50611 may be provided in the insertion hole 5022, and a limiting protrusion 50221 may be provided on the plug 5061 of the buckle 506. In addition, the buckle 506 and the first buckle 502 may be fixed by, but not limited to, bonding or threaded connection, thereby improving the consistency of their movement.

[0137] After understanding the structure of the airbag cover 5 of the above embodiment, you can refer to Figures 6 to 8 The fixing and disassembly process of the airbag 2 and the watch body 1 is introduced.

[0138] First, the process of fixing the airbag 2 to the watch body 1 is described:

[0139] Step 1: Place the portion of the airbag 2 with the air nozzle 201 in the mounting groove 104 at the end of the watch body 1 , and connect the air nozzle 201 to the air nozzle mounting port of the watch body 1 .

[0140] Step 2: Fasten the airbag cover 5 to the watch body 1 from the side of the airbag 2 facing away from the watch body 1. To implement this, first, engage the second buckle 503 of the airbag cover 5 with a buckle opening 1041 of the mounting slot 104. Simultaneously, move the buckle handle 506 from the first buckle 502 toward the second buckle 503, so that the buckle handle 506 drives the first buckle 502 into the accommodating cavity 5011a of the airbag cover 5. At this point, the elastic member 504a is squeezed and contracted by the first buckle 502, storing elastic force. Afterwards, the airbag cover 5 is pressed to accommodate it within the mounting groove 104 of the watch body 1. The latch 506 can then be released, and the elastic member 504a releases its elastic force. Under the elastic action of the elastic member 504a, the first latch 506 extends from the mounting hole 5012a of the accommodating cavity 5011a and engages with the other latch 1041 of the mounting groove 104, thereby achieving a fixed connection between the airbag cover 5 and the watch body 1. The airbag 2 is now located between the airbag cover 5 and the watch body 1. This fixed connection between the airbag cover 5 and the watch body 1 allows the airbag 2 to be pressed against the watch body 1, thereby achieving a secure connection between the airbag 2 and the watch body 1.

[0141] It is understood that the above-described steps for securing the airbag 2 to the watch body 1 are merely exemplary. In other possible embodiments of the present invention, the process of moving the latch 506 can be omitted, and instead the first latch 502 can be secured to the latch opening 1041 of the mounting slot 104 by applying a greater pressing force to the airbag cover 5.

[0142] In this application, the process of removing the airbag 2 from the watch body 1 is relatively simple. Specifically, the handle 506 is moved from the first latch 502 toward the second latch 503, causing the handle 506 to move the first latch 502 toward the accommodating cavity 5011a of the airbag cover 5. At this point, the elastic member 504a is squeezed and contracted by the first latch 502, storing elastic force. The airbag cover 5 is then removed by lifting the first latch 502 and pulling it out of the corresponding latch 1041. The airbag cover 5 can now be easily removed from the air nozzle mounting opening of the watch body 1.

[0143] The removable connection between the airbag cover 5 and the watch body 1 in the above-described embodiment of the present application allows for both fixed connection and removal of the airbag 2 from the watch body 1. This provides a relatively simple structure and convenient operation. This facilitates replacement and maintenance of the airbag 2. Furthermore, users can replace the airbag 2 with other accessories based on their specific needs, thereby satisfying their wearing requirements and enhancing the user experience.

[0144] In the above embodiment of the present application, the airbag cover 5 is connected to the watch body 1 by snapping the buckle and the bayonet 1041. In the scenario of connection by snapping, the airbag cover 5 can adopt other possible settings in addition to the structure of the above embodiment. For example, refer to Figure 9 , Figure 9 This is a structural diagram of the airbag cover 5 of another possible embodiment of the present application. Figure 9 It can be seen from the figure that the overall structure of the airbag cover 5 of this embodiment is similar to that of the airbag cover 5 in the above embodiment, but there are certain differences in their specific structures.

[0145] Reference Figure 10 , Figure 10 for Figure 9 , an exploded view of the airbag cover 5 is shown in FIG. In this embodiment, the airbag cover 5 includes a cover body 501, and a first snap 502 and a second snap 503 disposed on the cover body 501. The first snap 502 and the second snap 503 are disposed at two opposite ends of the cover body 501. Both the first snap 502 and the second snap 503 are movable snaps, and thus can move toward or away from each other.

[0146] Continue to refer to Figure 10 In order to set the first buckle 502 and the second buckle 503 on the cover body 501, the cover body 501 is provided with a receiving cavity 5011a and a receiving cavity 5011b, and a mounting hole 5012a ( Figure 10 Not shown, please refer to Figure 11 ), and a mounting hole 5012c communicating with the accommodating cavity 5011b. The first buckle 502 is accommodated in the accommodating cavity 5011a, and a portion thereof can extend out of the accommodating cavity 5011a through the mounting hole 5012a. In the direction from the second buckle 503 to the first buckle 502, an elastic member 504a is disposed between the first buckle 502 and the sidewall of the accommodating cavity 5011a. The elastic member 504a elastically abuts against the first buckle 502 and the sidewall of the accommodating cavity 5011a, respectively.

[0147] In some embodiments of the present application, the elastic member 504a may be a spring, and there may be one spring. This spring may abut against the middle region of the first buckle 502 to stabilize the movement of the first buckle 502. Alternatively, there may be at least two springs to further enhance the stability of the movement of the first buckle 502. Furthermore, a limiting post 5021 may be provided on the first buckle 502, so that the spring can be sleeved onto the limiting post 5021, thereby preventing the spring from falling off and ensuring a secure connection between the spring and the first buckle 502.

[0148] Refer to Figure 10 and Figure 11 In this embodiment of the present application, the airbag cover 5 may further include a buckle 506, wherein the specific structure of the buckle 506, and the connection method between the buckle 506, the first buckle 502 and the cover body 501 are similar to those of the above embodiment. They can all be set with reference to the above embodiment and will not be repeated here.

[0149] Reference Figure 10 and Figure 12The second clip 503 is accommodated in the accommodating chamber 5011b, and a portion of it can extend outward from the mounting hole 5012c to the outside of the accommodating chamber 5011b. An elastic member 504b is provided between the second clip 503 and the sidewall of the accommodating chamber 5011b along the direction from the first clip 502 to the second clip 503. The elastic member 504b elastically abuts the second clip 503 and the sidewall of the accommodating chamber 5011b, respectively. The elastic member 504b can be a spring, and there can be one spring, which abuts the middle area of ​​the second clip 503 to ensure more stable movement of the second clip 503. Alternatively, there can be at least two springs to further enhance the stability of the movement of the second clip 503. Furthermore, a limiting post 5031 can be provided on the second clip 503. This allows the spring to be sleeved onto the limiting post 5031, thereby preventing the spring from falling off and ensuring a reliable connection between the spring and the second clip 503.

[0150] You can continue to refer to Figure 10 and Figure 12 In a possible embodiment of the present application, the elastic member 504b can also be fixed to the accommodating cavity 5011 by a fixing block 507. Figure 10 The fixing block 507 has a limiting hole 5071, and the elastic member 504 can be passed through the limiting hole 5071. The fixing block 507 is fixed to the accommodating cavity 5011b, thereby limiting the elastic member 504b in the accommodating cavity 5011b to improve the movement stability of the elastic member 504b.

[0151] You can continue to refer to Figure 10 In this embodiment of the present application, the side of the accommodating cavity 5011a and the accommodating cavity 5011b facing the watch body 1 can both have an opening, which can facilitate the installation of the first snap 502 and the second snap 503. In addition, the airbag cover 5 can also include a snap cover 505, wherein the snap cover 505 can be two, and the two snap cover 505 are independently provided and respectively cover the openings of the accommodating cavity 5011a and the accommodating cavity 5011b. In other embodiments of the present application, reference is made to Figure 10 and Figure 13 The snap cover 505 can also be an integrally formed structure, covering both openings simultaneously, thereby simplifying the structure of the airbag cover 5. Regardless of how the snap cover 505 is configured, it can be secured to the cover body 501 through, but not limited to, bonding, threading, or welding. The provision of the snap cover 505 enhances both the structural stability of the airbag cover 5 and its appearance.

[0152] In one possible embodiment, the buckle cover 505 can also be pressed against the first buckle 502 and the second buckle 503 so that the buckle cover 505 supports the first buckle 502 and the second buckle 503, thereby reducing the shaking of the first buckle 502 and the second buckle 503 during movement. It is understandable that the pressing force between the buckle cover 505 and the first buckle 502 and the second buckle 503 is relatively small to avoid causing significant resistance to the movement of the first buckle 502 and the second buckle 503.

[0153] After understanding the structure of the airbag cover 5 , the process of fixing and disassembling the airbag 2 and the watch body 1 will be introduced.

[0154] Reference Figure 14 , Figure 14 The process of fixing the airbag cover 5 to the airbag 2 in a possible embodiment of the present application is shown. The airbag cover 5 includes a cover body 501 and a snap cover 505 of an integrally formed structure, and a relief opening 5051 for the air nozzle 201 of the airbag 2 to extend is provided on the snap cover 505. When the airbag cover 5 with this structure is used to connect the airbag 2 to the watch body 1, the airbag 2 can be first fixed to the airbag cover 5. In specific implementation, the part of the airbag 2 provided with the air nozzle 201 (which can be understood as the part of the airbag 2 used to connect with the watch body 1) can be placed between the cover body 501 and the snap cover 505, and the air nozzle 201 can be extended from the relief opening 5051 of the snap cover 505, and then the snap cover 505 can be fixed to the cover body 501 to obtain. Figure 15 In addition, continue to refer to Figure 14 In an embodiment of the present application, a limiting block 5013 can also be provided on the cover body 501, and a limiting opening 202 is provided on the portion of the airbag 2 used for connecting with the watch body 1, so that the limiting block 5013 can be inserted into the limiting opening 202 to realize the limitation of the airbag 2 on the cover body 501, and the reliability of the connection between the airbag 2 and the airbag cover 5 can be improved.

[0155] Afterwards, Figure 15 The structure of the airbag 2 and the airbag cover 5 connected is fixed to the watch body 1. Figure 6 The airbag cover 5 can be buckled in the mounting groove 104 of the watch body 1, and a pressing force can be applied to the airbag cover 5 to make the airbag cover 5 Figure 11 and Figure 12, so that the first clip 502 moves into the accommodating cavity 5011a of the airbag cover 5, and the second clip 503 moves into the accommodating cavity 5011b of the airbag cover 5, the elastic member 504a is squeezed and contracted by the first clip 502 and stores elastic force, and the elastic member 504b is squeezed and contracted by the second clip 503 and stores elastic force. When the airbag cover 5 is pressed until the first and second clips 502 and 503 are aligned with the retaining notches 1041 on the corresponding sides of the mounting groove 104 of the watch body 1, the first clip 502, under the elastic action of the elastic member 504a, extends from the mounting hole 5012a of the accommodating cavity 5011a and engages with the retaining notch 1041 of the mounting groove 104. The second clip 503, under the elastic action of the elastic member 504b, extends from the mounting hole 5012c of the accommodating cavity 5011b and engages with the retaining notch 1041 of the mounting groove 104, thereby achieving a fixed connection between the airbag cover 5 and the watch body 1. It should be understood that, in the above process, the airbag nozzle 201 of the airbag 2 can be inserted into the airbag nozzle mounting opening of the watch body 1 before applying pressure to the airbag cover 5.

[0156] It is understood that the above-described steps for securing the airbag 2 to the watch body 1 are merely exemplary. In other possible embodiments of the present invention, the second buckle 503 may be first engaged with a notch 1041 of the mounting slot 104, and then the handle 506 may be moved to engage the first buckle 503 with the notch 1041 of the mounting slot 104, thereby reducing wear on the buckle and notch.

[0157] In this application, the process of removing the airbag 2 from the watch body 1 is relatively simple. Figure 10 and Figure 11 The handle 506 can be moved from the first latch 502 toward the second latch 503, causing it to move the first latch 502 toward the accommodating cavity 5011a of the airbag cover 5. The elastic member 504a is compressed and contracted by the first latch 502, storing elastic force. Subsequently, the second latch 503 of the airbag cover 5 is lifted and removed from the corresponding latch 1041, completing the removal of the airbag cover 5. The airbag 2 can now be easily removed from the air nozzle mounting opening of the watch body 1.

[0158] The arrangement of the airbag cover 5 in this embodiment of the present application maintains the integrity and aesthetics of the airbag cover 5. Furthermore, it effectively prevents damage to the airbag 2 and the air nozzle 201 due to local pulling during installation and removal, thereby extending their service life. The detachable connection between the airbag cover 5 and the watch body 1 in this embodiment of the present application enables the fixed connection and removal of the airbag 2 from the watch body 1. This provides a relatively simple structure and convenient operation. This facilitates the replacement and maintenance of the airbag 2. Furthermore, users can replace the airbag 2 with other possible accessories based on their specific needs, thereby meeting their wearing requirements and enhancing the user experience.

[0159] In addition, in a possible embodiment of the present application, when the snap cover 505 is two independent structures that respectively cover the openings of the accommodating cavity 5011a and the accommodating cavity 5011b, the airbag 2 can be pressed onto the watch body 1 by connecting the airbag cover 5 to the watch body 1. The specific setting method can refer to the previous embodiment and will not be repeated here.

[0160] In the above embodiments of the present application, a buckle is provided on the airbag cover 5 and a bayonet is provided on the watch body 1, so that the airbag cover 5 and the watch body 1 are connected by the buckle and the bayonet to achieve a detachable connection between the two. In some possible embodiments of the present application, a buckle can be provided on the watch body 1 and a bayonet is provided on the airbag cover 5 to achieve a detachable connection between the two. When implementing it specifically, you can first refer to Figure 16 , Figure 16 Schematic diagram of the assembly structure of the airbag cover 5 and the airbag 2 provided in another possible embodiment of the present application. In this embodiment, the airbag cover 5 may include a cover body 501, the cover body 501 having a third bayonet 5014 and a fourth bayonet ( Figure 16 (not shown), the third bayonet 5014 and the fourth bayonet are respectively provided at two opposite ends of the cover body 501.

[0161] Reference Figure 17 , Figure 17An exploded view of the airbag cover 5 is shown. The cover body 501 is provided with a receiving cavity 5011c, located between the third retaining opening 5014 and the fourth retaining opening 5015. The end of the airbag 2, provided with the air nozzle 201, can be accommodated in the receiving cavity 5011c. Furthermore, to secure the airbag 2 to the airbag cover 5, the airbag cover 5 can further include a clamping plate 510, which can be fixedly connected to the cover body 501. This allows the end of the airbag 2, provided with the air nozzle 201, to be positioned between the cover body 501 and the clamping plate 510. The fixed connection between the clamping plate 510 and the cover body 501 secures the airbag 2 to the airbag cover 5. It is worth mentioning that in the present application, the part of the airbag 2 used to connect with the airbag cover 5 can also be provided with a tensile fabric layer, which can be but not limited to being formed by hot melting. In this way, during the installation or disassembly of the airbag cover 5 and the watch body 1, the pulling effect on the airbag 2 can be effectively reduced, thereby playing a protective role for the airbag 2.

[0162] When setting the pressing plate 510, please refer to Figure 18 , Figure 18 The schematic diagram of the structure of the pressing plate 510 provided in a possible embodiment of the present application is as follows. Figure 17 After the airbag 2 is installed on the airbag cover 5, the air nozzle 201 of the airbag 2 also needs to be exposed from the airbag cover 5. Figure 19a , Figure 19a for Figure 16 Refer to the BB cross-sectional view of the structure shown in Figure 18 and Figure 19a In this application, the pressing plate 510 may be provided with a nozzle hole 5101 so that the nozzle 201 of the airbag 2 may extend from the nozzle hole 5101, thereby facilitating the connection between the nozzle 201 and the watch body 1. It is worth mentioning that in this embodiment of the application, the nozzle 201 of the airbag 2 may be as follows Figure 19a The one-piece structure shown in the figure can be provided with a protruding structure on the surface of the air nozzle 201. In this way, when the air nozzle 201 is installed on the watch body 1, the protruding structure can play a sealing role between the two, which can improve the airtightness of the connection between the air bag 2 and the watch body 1, thereby helping to improve the accuracy of blood pressure measurement. In addition, the air nozzle 201 of the air bag 2 can also refer to Figure 19b , the surface of the air nozzle 201 may be provided with an annular groove structure, and a sealing ring 2011 may be installed in the annular groove structure to facilitate sealing the air nozzle 201. In this way, when the air nozzle 201 is inserted into the watch body 1, the airtightness at the connection between the air bag 2 and the watch body 1 can be improved, thereby improving the accuracy of blood pressure measurement.

[0163] In addition, in order to achieve a fixed connection between the pressing plate 510 and the cover body 501, a clamping portion 5102 may be provided at the first end of the pressing plate 510. The first end may be the end of the pressing plate 510 facing the fourth clamping port 5015. Figure 17 and Figure 18 A card slot 50111 can be provided on the side wall at the corresponding position of the accommodating cavity 5011c of the cover body 501, and the clamping portion 5102 of the clamping plate 510 can be inserted into the card slot 50111 of the cover body 501 to limit the clamping plate 510 on the cover body 501.

[0164] In this application, the fixing method of the pressing plate 510 and the cover body 501 is not limited. For example, the two can be connected by screw locking. Figure 17 and Figure 18 The pressing plate 510 may further be provided with a screw hole 5103, which may be provided near the second end of the pressing plate 510. The first end and the second end of the pressing plate 510 are disposed opposite each other. Thus, when the pressing plate 510 is mounted on the cover body 501, the clamping portion 5102 at the first end may be first inserted into the clamping groove 50111 of the receiving cavity 5011c of the cover body 501. The screws installed in the screw holes 5103 of the pressing plate 510 are then tightened to achieve a fixed connection between the pressing plate 510 and the cover body 501.

[0165] In addition to the above structure, the airbag cover 5 may also include an elastic protrusion 511, which may be provided in the accommodating cavity 5011c of the cover body 501 and may move toward or away from the accommodating cavity 5011c. Figure 17 The elastic protrusion 511 may include a convex cap 51101 and an elastic member 51102. The elastic member 51102 may be located between the convex cap 51101 and the bottom wall of the accommodating cavity 5011c, and the elastic member 51102 may elastically abut against the bottom wall of the accommodating cavity 5011c and the convex cap 51101, respectively. In the present application, the elastic member 51102 may be a spring. To improve the reliability of the movement of the elastic member 51102, a limiting post 50112 may be provided on the bottom wall of the accommodating cavity 5011c of the cover body 501. This allows the elastic member 51102 to be sleeved on the limiting post 50112, thereby preventing the elastic member 51102 from falling off and improving the stability of the movement of the convex cap 51101.

[0166] In addition, a guide structure 50113 may be provided on the bottom wall of the accommodating cavity 5011c of the cover body 501, and the convex cap 51101 may contact the guide structure 50113 so that the guide structure 50113 guides the movement of the convex cap 51101. Figure 17 When the guide structure 50113 is specifically provided, the guide structure 50113 can be provided around the limiting post 50112. In one possible embodiment of the present application, the guide structure 50113 can be an annular or semi-annular structure provided around the limiting post 50112. In this way, the convex cap 51101 can be accommodated within the area formed by the guide structure 50113 around the limiting post 50112, and the outer edge of the convex cap 51101 can contact the side wall of the guide structure 50113 facing the limiting post 50112, thereby allowing the guide structure 50113 to effectively and reliably guide the movement of the convex cap 51101.

[0167] Refer to Figure 17 and Figure 18 The pressing plate 510 may also be provided with a convex cap hole 5104, through which the convex cap 51101 may extend to the side of the pressing plate 510 facing away from the cover plate body 501. Furthermore, it should be noted that since the end of the airbag 2 provided with the air nozzle 201 is located between the pressing plate 510 and the cover plate body 501, to facilitate the convex cap 51101 extending from the convex cap hole 5104, a through hole may be provided in the airbag 2 at the position corresponding to the convex cap hole 5104. This prevents the airbag from interfering with the movement of the convex cap 51101, allowing the convex cap 51101 to extend from the convex cap hole 5104 of the pressing plate 510 via the through hole of the airbag 2.

[0168] Please refer to Figure 19a and Figure 19b In the present application, in order to prevent the convex cap 51101 from falling off the pressing plate 510, a flange structure 511011 can be formed at the brim of the convex cap 51101, and the diameter of the flange structure 511011 is larger than the diameter of the convex cap hole 5104, so that the pressing plate 510 limits the convex cap 51101.

[0169] In this embodiment of the present application, in order to realize the detachable connection between the airbag cover 5 and the watch body 1, when specifically setting the watch body 1, reference can be made to Figure 20a and Figure 20b , Figure 20a and Figure 20b The diagrams show the structure of the watch body 1 from two different angles. The end of the watch body 1 is provided with a mounting slot 104, which is located on the bottom surface of the watch body 1. Furthermore, a valve mounting opening 1023 is provided within the mounting slot 104, into which the airbag cover 5 can be mounted, and into which the valve 201 of the airbag 2 can be inserted.

[0170] In addition, a buckle may be provided on each of two oppositely disposed side walls of the mounting slot 104, which are respectively referred to as a third buckle 512 and a fourth buckle 513. The third buckle 512 and the fourth buckle 513 can move in directions closer to or away from each other.

[0171] Reference Figure 21 , Figure 21 for Figure 20a and Figure 20b The exploded view of the meter body 1 is shown in FIG. Figure 21 FIG shows a specific arrangement of the third buckle 512 and the fourth buckle 513 on the watch body 1 in a possible embodiment of the present application. The watch body 1 is provided with a first receiving groove 105 and a second receiving groove ( Figure 21 The first receiving groove 105 is connected to the mounting groove 104 through the first through hole 107, and the second receiving groove 106 is connected to the mounting groove 104 through the second through hole ( Figure 21 (not shown) is connected to the mounting groove 104.

[0172] Please refer to Figure 22 , Figure 22 for Figure 20a The CC cross-sectional view of the watch body 1 is shown in FIG. The third buckle 512 can be accommodated in the first receiving groove 105, and a portion thereof can extend from the first through-hole 107 into the mounting groove 104. An elastic member 51201 is disposed between the third buckle 512 and the sidewall of the first receiving groove 105. The elastic member 51201 can be disposed on the side of the third buckle 512 facing away from the fourth buckle 513, and the elastic member 51201 elastically abuts against the third buckle 512 and the sidewall of the first receiving groove 105, respectively.

[0173] In some embodiments of the present application, the elastic member 51201 may be a spring, and the number of the spring may be one, and the one spring may abut against the middle area of ​​the third buckle 512 to make the movement of the third buckle 512 more stable. In addition, there may be at least two springs to further improve the stability of the movement of the third buckle 512. Figure 21 A limiting column 51202 can also be provided on the third buckle 512, so that the spring can be sleeved on the limiting column 51202, thereby preventing the spring from falling off and ensuring a reliable connection between the spring and the third buckle 512.

[0174] Refer to Figure 21 and Figure 22In this embodiment of the present application, the watch body 1 may also be provided with a snap button 514. Furthermore, a third through hole 109 is provided on the bottom surface of the watch body 1, which communicates with the first accommodating groove 105. The snap button 514 can be mounted in the third through hole 109 and can move along the axis of the third through hole 109. The third snap 512 has an opening 51203, which can be a through hole, so that the snap button 514 can pass through the opening 51203 of the third snap 512.

[0175] In a possible embodiment of the present application, the snap button 514 can be limited to the watch body 1 by a limiter 515, so that the snap button 514 can move along the axis of the third watch body 1 and can also prevent the snap button 514 from falling off from the watch body 1. Figure 21 and Figure 22 The limiting member 515 can be a screw, the third buckle 512 can be located between the third through hole 109 and the screw, and the screw is locked with the buckle button 514. Figure 22 The watch body 1 may be provided with a stepped surface 510. During the movement of the snap button 514, the edge of the screw nut may engage with the stepped surface 510, thereby enabling the stepped surface 510 to limit the movement of the snap button 514. It is worth mentioning that since the snap button 514 is inserted through the opening 51203 of the third snap 512, limiting the movement of the snap button 514 also limits the movement of the third snap 512.

[0176] In addition, during the movement of the buckle button 514, the third buckle 512 can be driven to move toward or away from the first receiving groove 105. Figure 22 The snap button 514 further has an inclined surface 51401 that abuts against the portion of the third snap 512 that faces away from the mounting slot 104. This allows the inclined surface 51401 to push the third snap 512 toward the first receiving slot 105 when the snap button 514 moves along the third through hole 109. It is understood that the inclination direction of the inclined surface 51401 can be designed based on the relationship between the movement directions of the snap button 514 and the third snap 512. For example, when the snap button 514 is pressed, the inclined surface 51401 can push the third snap 512 toward the first receiving slot 105. When the snap button 514 is released, the third snap 512 moves in a direction away from the first receiving slot 105 under the elastic force of the elastic member 51201. In addition, the inclination angle of the inclined surface 51401 can be designed according to the proportional relationship between the movement distance of the buckle button 514 and the third buckle 512.

[0177] You can continue to refer to Figure 21 and Figure 22 The fourth clip 513 can be received in the second receiving groove 106, and a portion thereof can extend from the second through hole 108 into the mounting groove 104. An elastic member 51301 is disposed between the fourth clip 513 and the sidewall of the second receiving groove 106. The elastic member 51301 can be disposed on a side of the fourth clip 513 facing away from the third clip 512, and the elastic member 51301 elastically abuts against the fourth clip 513 and the sidewall of the second receiving groove 106, respectively.

[0178] In some embodiments of the present application, the elastic member 51301 may be a spring, and the number of the spring may be one, and the one spring may abut against the middle area of ​​the fourth buckle 513 to make the movement of the fourth buckle 513 more stable. In addition, there may be at least two springs to further improve the stability of the movement of the fourth buckle 513. Figure 21 A limiting column 51302 can also be provided on the fourth buckle 513, so that the spring can be sleeved on the limiting column 51302, thereby preventing the spring from falling off, so that the spring and the fourth buckle 513 are reliably connected.

[0179] In this application, in order to limit the movement of the fourth buckle 513, a buckle bracket 516 can be provided on the watch body 1 for the fourth buckle 513. Figure 21 and Figure 22 The watch body 1 is further provided with a fourth through hole 111, which is connected to the second receiving groove 106, and the opening direction of the fourth through hole 111 can be opposite to the opening direction of the installation groove 104. The buckle bracket 516 can be installed in the fourth through hole 111 and play a supporting role for the fourth buckle 513. In addition, a protrusion 5161 can be provided on the buckle bracket 516, and a recessed portion 51303 can be provided on the fourth buckle 513. Figure 23 , Figure 23 FIG2 is a top view of the assembled structure of the clip bracket 516 and the fourth clip 513. After the clip bracket 516 and the fourth clip 513 are assembled, the protrusion 5161 of the clip bracket 516 can be inserted into the recessed portion 51303 of the fourth clip 513. Along the direction of movement of the fourth clip 513, the protrusion 5161 and the sidewall of the recessed portion 51303 are spaced apart. It is understood that the gap between the protrusion 5161 and the sidewall of the recessed portion 51303 can be set based on the movement distance of the fourth clip 513 within the second accommodating groove 106 and the length of the fourth clip 513 that can extend into the mounting groove 104. Furthermore, in some possible embodiments of the present application, the protrusion 5161 can be provided on the fourth clip 513, while the recessed portion 51303 can be provided on the clip bracket 516.

[0180] In addition, in order to prevent the buckle bracket 516 from falling off the watch body 1, continue to refer to Figure 21 and Figure 22 The watch body 1 may further include a snap cover 505, with a snap bracket 516 located between the fourth snap 513 and the snap cover 505. The snap cover 505 abuts against the snap 516, so that the snap cover 505 supports the snap bracket 516. Furthermore, the snap cover 505 and the watch body 1 may be fixed to each other by, but not limited to, bonding or threaded connection, so that the snap cover 505 provides more reliable support for the snap bracket 516.

[0181] After understanding the structures of the airbag cover 5 and the watch body 1 of this embodiment of the present application, the installation and disassembly process of the airbag cover 5 and the watch body 1 assembled with the airbag 2 will be introduced next.

[0182] First, refer to Figure 24 , Figure 24 A schematic diagram of the structure of the airbag 2, airbag cover 5, and watch body 1 before installation is shown. In this embodiment of the present application, the airbag 2 and airbag cover 5 can be assembled before installation. This allows the airbag 2 to be installed on the watch body 1 by installing the airbag cover 5 on the watch body 1, thereby improving the convenience of installation of the airbag 2 and watch body 1.

[0183] Then, refer to Figure 25 , Figure 25 This diagram illustrates the airbag cover 5, with the airbag 2 assembled, before installation on the watch body 1. At this point, the third buckle 512 partially extends into the mounting slot 104, and the buckle button 514, which penetrates the opening 51203 of the third buckle 512, abuts against the third buckle 512, restraining it. The fourth buckle 513 partially extends into the mounting slot 104, with the buckle bracket 516 limiting its movement.

[0184] When the airbag cover 5 is installed into the watch body 1, the airbag cover 5 can be placed opposite to the receiving groove 104 of the watch body 1, and pressure can be applied to the airbag cover 5 toward the receiving groove 104. As the airbag cover 5 is pressed down, the third clip 512 and the fourth clip 513 move in opposite directions. During this process, the elastic member 51201 elastically abutting against the third clip 512 and the elastic member 51301 elastically abutting against the fourth clip 513 are compressed to accumulate elastic force. When the third clip 512 is opposite to the third bayonet 5014, and the fourth clip 513 is opposite to the fourth bayonet 5015, the third clip 512 and the fourth clip 513 can move in opposite directions under the elastic force of the corresponding elastic members, and respectively enter their respective corresponding bayonets. At this point, the installation of the airbag cover 5 and the watch body 1 is completed, and you can refer to Figure 26 , Figure 26It is a structural diagram after the airbag cover 5 and the watch body 1 are assembled. It is worth mentioning that you can continue to refer to Figure 25 In the present application, the portions of the third clip 512 and the fourth clip 513 extending into the mounting groove 104 may be provided with guide surfaces, which may serve as guides during the installation of the airbag cover 5 on the watch body 1 .

[0185] Refer to Figure 25 and Figure 27 , Figure 27 for Figure 26 Cross-sectional view at DD in FIG. During installation of the airbag cover 5 onto the watch body 1, the portion of the convex cap 51101 extending from the convex cap hole 5104 of the pressure plate 510 can contact the bottom wall of the mounting groove 104 of the watch body 1. Furthermore, as the airbag cover 5 is pressed against the watch body 1, the height of the portion of the convex cap 51101 extending into the convex cap hole 5104 gradually decreases, gradually compressing the elastic member 51102 and accumulating elastic force. When the airbag cover 5 is fully installed on the watch body 1, the elastic member 51102 reaches maximum compression.

[0186] In addition, when removing the airbag cover 5 from the watch body 1, refer to Figure 27 At this point, the snap button 514 can be pressed, causing the movement of the snap button 514 to push the third snap 512 away from the fourth snap 513. When the third snap 512 is released from the third latch 5014, the convex cap 51101, under the elastic force released by its elastic member 51102, moves toward the watch body 1, lifting the airbag cover 5. At this point, the third latch 5014 can be used as a handle, allowing the airbag cover 5 to be removed from the watch body 1 by manually grasping the third latch 5014 and lifting it away from the watch body 1. It will be appreciated that this disassembly process does not cause any tearing of the airbag 2, effectively extending the service life of the airbag 2.

[0187] The arrangement of the airbag cover 5 and the watch body 1 in this embodiment of the present application effectively prevents damage to the airbag 2 and the air nozzle 201 due to local pulling during installation and removal, thereby extending their service life. The detachable connection between the airbag cover 5 and the watch body 1 in this embodiment of the present application facilitates the connection and removal of the airbag 2 from the watch body 1, resulting in a simple structure and convenient operation. This facilitates the replacement and maintenance of the airbag 2. Users can then replace the airbag 2 with other accessories based on their specific needs, thereby satisfying their wearing requirements and enhancing the user experience.

[0188] In this embodiment of the present application, since the air nozzle 201 can be directly inserted into the watch body 1 through the air nozzle installation port of the watch body 1, in order to prevent foreign objects from entering the watch body 1 after the airbag cover 5 is removed, a magnet can be set in the airbag cover 5, and a Hall element can be set in the watch body 1, and the magnet and the Hall element are arranged in coordination. In this way, the connection between the magnet and the Hall element can be used to detect whether the airbag cover 5 is in the installed state. If it is detected that the airbag cover 5 is properly installed in the watch body 1, the wearable device can be used normally. If it is detected that the airbag cover 5 is not installed, the wearable device can issue an alarm to remind the user that the internal structure of the watch body 1 is exposed at the air nozzle installation port, so that the user can take corresponding measures in a timely manner to avoid the risk of water or foreign objects entering the watch body 1 due to the long-term exposure of the internal structure of the watch body 1.

[0189] In addition to the above-mentioned method of realizing the detachable connection between the airbag cover 5 and the watch body 1 by snapping, a magnetic method can also be used. Figure 28 , Figure 28 An exploded view of an airbag cover 5 according to a possible embodiment of the present application. The airbag cover 5 includes a cover body 501 and a first magnetic element 508. For example, there may be two first magnetic elements 508, each disposed at two opposite ends of the cover body 501. In this embodiment of the present application, a magnetic element may refer to an inherently magnetic element (e.g., a magnet) or a non-magnetic element that can be attracted by a magnetic element.

[0190] Continue to refer to Figure 28 The cover body 501 includes a receiving chamber 5011a and a receiving chamber 5011b, and two first magnetic elements 508 are respectively received in the receiving chamber 5011a and the receiving chamber 5011b. The receiving chamber 5011a and the receiving chamber 5011b have openings on the side facing the watch body 1, which facilitates the installation of the magnetic elements. In addition, the airbag cover 5 can also be provided with a magnetic element cover 509 corresponding to the receiving chamber 5011a and the receiving chamber 5011b, respectively. The magnetic element cover 509 is provided at the openings of the receiving chamber 5011a and the receiving chamber 5011b, and is fixedly connected to the cover body 501, forming Figure 29 The airbag cover 5 of the structure shown can prevent the magnetic element from falling off from the corresponding accommodating cavity.

[0191] In some other embodiments of the present application, the airbag cover 5 may be provided with only one magnetic element cover 509 , and the magnetic element cover 509 is an integrally formed structure, so that the magnetic element cover 509 can cover the openings of the two accommodating cavities at the same time.

[0192] In order to connect the airbag cover 5 to the watch body 1, refer to Figure 30, Figure 30 This is a schematic diagram of the structure of a watch body 1 of a possible embodiment of the present application. A mounting groove 104 is provided at the end of the watch body 1. Two recessed portions 1042 are provided on the bottom wall of the mounting groove 104. A second magnetic element 1043 is installed in each of the two recessed portions 1042. Figure 31 and Figure 32 The two recessed portions 1042 may be provided on both sides of the area of ​​the mounting groove 104 for mounting the airbag, so that the portion of the airbag 2 provided with the air nozzle 201 may be accommodated in the mounting groove 104 .

[0193] In some embodiments of the present application, the magnetic attraction of the magnetic elements can be selected so that only one first magnetic element 508 is provided in the cover body 501, and only one second magnetic element 1043 is provided in the mounting slot 104 of the watch body 1. The first magnetic element 508 and the second magnetic element 1043 are attracted to each other to achieve a detachable connection between the airbag cover 5 and the watch body 1. In addition, when the space available for the magnetic elements in the cover body 501 and the mounting slot 104 is large, two or more magnetic elements can be provided in each of the cover body 501 and the mounting slot 104, thereby improving the reliability of the connection between the airbag cover 5 and the watch body 1.

[0194] The arrangement of the airbag cover 5 and the watch body 1 in this embodiment simplifies the process of securing and removing the airbag 2 from the watch body 1. To secure the airbag 2 to the watch body 1, the airbag nozzle 201 of the airbag 2 can be inserted into the watch body 1. The airbag cover 5 can then be placed over the watch body 1 from the side of the airbag 2 facing away from the watch body 1. The two first magnetic elements 508 of the airbag cover 5 and the two second magnetic elements 1043 on the watch body 1 engage with each other, securing the airbag cover 5 to the watch body 1. At this point, the airbag 2 is pressed against the watch body 1 by the airbag cover 5. Furthermore, to remove the airbag 2 from the watch body 1, simply peel the airbag cover 5 off the watch body 1 and then remove the airbag 2 from the watch body 1. It should be understood that in this embodiment of the present application, at least one of the first magnetic element 508 and the second magnetic element 1043 is inherently magnetic. In addition, the connection reliability between the airbag cover 5 and the watch body 1 can be improved by selecting the number of the first magnetic elements 508 and the second magnetic elements 1043 and the magnetism.

[0195] The detachable connection between the airbag cover 5 and the watch body 1 in this embodiment of the present application allows for both fixed connection and removal of the airbag 2 from the watch body 1. This simplifies the structure and facilitates operation. This facilitates replacement and maintenance of the airbag 2. Furthermore, users can replace the airbag 2 with other accessories based on their specific needs, thereby satisfying their wearing requirements and enhancing the user experience.

[0196] It is understood that in addition to the method described in the above embodiment, the airbag can also be detachably connected to the watch body in other possible ways. For example, a first clip, a second clip, and two first magnetic elements can be provided on the airbag cover, and two bayonet holes and two second magnetic elements can be provided on the watch body. This allows the airbag cover to be connected to the watch body by both snapping and magnetic attraction, which can effectively improve the reliability of the connection between the two. In addition, one end of the airbag cover can be snapped to the watch body by the first clip or the second clip, and the other end can be connected by magnetic attraction between the first magnetic element and the second magnetic element. This can simplify the structure of the wearable device while ensuring a reliable connection between the airbag cover and the watch body.

[0197] When using the wearable device provided by this application to detect blood pressure, it is usually necessary to place the airbag 2 Figure 33 The flat state shown is bent, for example, into Figure 34 or Figure 35 The shape shown enables the airbag 2 to fit closely with the wearing part such as the wrist, thereby facilitating improved detection accuracy.

[0198] However, when the airbag 2 is bent, the gap between the inner walls of the airbag 2 will change, which may affect the flow of gas in the air cavity of the airbag 2. Figure 36 , Figure 36 The internal structure of the airbag 2 of another embodiment of the present application is shown. In order to ensure the patency of the air cavity in the airbag 2, in one embodiment of the present application, a support protrusion 2012 can be provided on the end surface of the air nozzle 201 located inside the airbag.

[0199] Refer to Figure 36 and Figure 37 , Figure 37 This is a schematic diagram of the structure of the gas nozzle 201 according to an embodiment of the present application. Figure 36 The arrow in FIG represents the flow direction of the gas entering the airbag 2 through the air nozzle 201. In this embodiment, the support protrusion 2012 protrudes from the end surface of the air nozzle 201 along the direction in which the gas enters the airbag 2 from the air nozzle 201. Figure 37 The support protrusion 2012 can be arranged in a point shape, and there can be one support protrusion 2012, or at least two support protrusions 2012, and the support protrusion 2012 can be arranged on the peripheral side of the air hole 2013 of the air nozzle 201.

[0200] In this way, refer to Figure 36 and Figure 37Even when the airbag 2 is bent, the side wall of the airbag 2 near the air nozzle 201 will avoid blocking the air hole 2013 of the air nozzle 201 under the support of the support protrusion 2012, so that external gas can smoothly pass through the air nozzle 201 into the airbag 2, thereby ensuring the inflation amount of the airbag 2, reducing the impact on measurement accuracy, and ensuring the realization of product functions.

[0201] In addition, when the airbag 2 is bent, wrinkles may appear in some areas, which may cause the air cavity in the airbag 2 to be blocked, thereby affecting the normal operation of the wearable device. In order to ensure that the air cavity in the airbag 2 is always unobstructed in different application scenarios and working conditions, please refer to Figures 38a to 38c , 26a to Figure 38c The internal structure of the airbag of one embodiment of the present application is shown. A flexible built-in 204 is provided inside the airbag 2. The number of the flexible built-in 204 can be one or more. In addition, there can be a gap between the flexible built-in 204 and the inner wall of the airbag 2. The flexible built-in 204 can be as follows: Figure 38a As shown, the side wall of the airbag 2 is at least partially fixedly connected. Figure 38b and Figure 38c As shown, one end of the flexible insert 204 is in a free state (i.e., it can move freely), and the other end is fixedly connected to the air nozzle 201. In addition, the extension direction of the flexible insert 204 can be the same as the extension direction of the airbag 2, or the extension direction of the flexible insert 204 can be at a certain angle to the extension direction of the airbag 2 (e.g., Figure 38b shown).

[0202] By adopting this solution, during the bending process of the airbag 2, its side walls are separated by a flexible insert 204, and the flexible insert 204 has a certain thickness, and the size of the flexible insert 204 is smaller than the size inside the airbag 2. In this way, a certain gap will still be left inside the airbag 2, which can still ensure the smooth flow of the air cavity inside the airbag 2, thereby reducing the impact on measurement accuracy and ensuring the realization of product functions.

[0203] In addition, the size of the air-filled space of the airbag 2 plays a key role in the accuracy of blood pressure detection. Figures 33 to 35, the airbag 2 can be made to include two stacked layer structures, each with a cavity, and the cavities of the two layer structures are connected to form the air chamber of the airbag 2. This allows the inflatable space of the airbag 2 to be larger within a limited size, thereby improving measurement accuracy and facilitating a reduction in the width of the airbag 2, enhancing the user experience. In this application, for ease of description, the layer structure of the airbag 2 that directly contacts the user's wearing area is referred to as the first layer structure 203a, and the layer structure that is further away from the user's wearing area is referred to as the second layer structure 203b. The first layer structure 203a has a first cavity, and the second layer structure 203b has a second cavity.

[0204] It is understood that when the airbag 2 includes the stacked first layer structure 203a and the second layer structure 203b, referring to Figures 38a to 38c The flexible insert 204 within the airbag 2 of the above embodiment can be disposed within the first structure layer 203a or the second structure layer 203b. Alternatively, the flexible insert 204 can be disposed in both the first structure layer 203a and the second structure layer 203b. Furthermore, the flexible insert 204 in each of the first structure layer 203a and the second structure layer 203b can be one or more, and the types of the flexible inserts 204 in the first structure layer 203a and the second structure layer 203b can be the same or different.

[0205] In some embodiments of the present application, for the sake of distinction, the flexible built-in 204 disposed in the first layer structure 203a may be referred to as the first flexible built-in 204a, and the flexible built-in 204 disposed in the second layer structure 203b may be referred to as the second flexible built-in 204b. Figure 38a The first flexible built-in object 204a can be at least partially fixed to the inner wall of the first layer structure 203a, and the extension direction of the first flexible built-in object 204a can be substantially the same as the extension direction of the first layer structure 203a. In addition, there can be a gap between the first flexible built-in object 204a and the inner wall of the first layer structure 203a. Figure 38b and Figure 38c One end of the second flexible insert 204b can be connected to the air nozzle 201, while the other end is free. A gap can exist between the second flexible insert 204b and the inner wall of the second layer structure 203b. This allows for a gap between the first layer structure 203a and the second layer structure 203b when the airbag 2 is bent, ensuring that the air cavity within the airbag 2 remains unobstructed, thereby minimizing the impact on measurement accuracy and ensuring the full functionality of the product.

[0206] In order to understand the specific structure of the airbag 2 of the present application, the preparation method of the airbag 2 is introduced below.

[0207] In a possible embodiment, the airbag 2 is made by a hot-melt edge inverting preparation process. Figures 39a to 39f .

[0208] The first step: nest the first layer structure 203a and the second layer structure 203b with both ends open, the first layer structure 203a has a first cavity, and the second layer structure has a second cavity, so that the first layer structure 203a is located in the second cavity of the second layer structure 203b, so as to form an inner and outer layer nested structure; then connect part of the two layer structures together. The two layer structures are connected by hot melt bonding, and the connection area 206 can be arranged along the extension direction of the layer structure, and the connection area 206 can be distributed in a strip shape or in a point shape; then, a through hole 205 is opened in the connection area 206 to connect the first cavity and the second cavity. At this time, the result is as follows Figure 39a The structure shown, Figure 39b for Figure 39a Cross-section of the structure shown.

[0209] Step 2: Flip the second layer structure 203b from head to tail, and flip the two layer structures of the inner and outer layers into the stacked first layer structure 203a and the second layer structure 203b. Figure 39c The structure shown, Figure 39d for Figure 39c In the cross-sectional view of the structure shown, the first cavity 2031 of the first layer structure 203a and the second cavity 2032 of the second layer structure 203b are connected via the through hole 205.

[0210] In addition to the above steps, the first layer structure 203a and the second layer structure 203b obtained in the second step can be flattened by ironing the fold lines to form a flat and regular shape. Figure 39e The structure shown, Figure 39f for Figure 39e In addition, Figure 39e After the structure shown, the air nozzle 201 can be installed. The air nozzle 201 can be installed on the side of the second layer structure 203b away from the first layer structure 203a, so as to facilitate the connection between the air bag and the watch body 1. It can be understood that the air hole of the air nozzle can be connected to the second cavity 2032 of the second layer structure 203b. Figure 39e The openings at both ends of the first layer structure 203a and the second layer structure 203b in the obtained structure are sealed, and the sealing method can be but not limited to hot melt bonding to form a Figures 33 to 35The enclosed airbag 2 is shown. In addition, the above steps are an exemplary description of the preparation process of the airbag 2 in this embodiment of the present application. Based on this embodiment, those skilled in the art can make reasonable adjustments to the above steps to prepare the airbag 2 of the present application, which should be understood to fall within the scope of protection of the present application.

[0211] The airbag 2 manufactured by the above-mentioned hot-melt edge inverting process does not occupy the inflation space of the airbag 2, so that the inflatable space of the cavity of the two-layer structure can be maximized within a limited size, which is conducive to improving measurement accuracy.

[0212] In another possible embodiment of the present application, the airbag 2 can also be used Figures 40a to 40h The preparation method shown is processed and obtained, and when implemented specifically:

[0213] Step 1: Overlay the first curved surface structure 207a and the second curved surface structure 207b, wherein the two curved surface structures are bent in opposite directions, and the two curved surface structures are connected to obtain Figure 40a The structure shown, Figure 40b for Figure 40a In this step, the two curved structures can be connected by, but not limited to, hot-melt bonding.

[0214] Step 2: Open a through hole 205 in the connection area of ​​the first curved surface structure 207a and the second curved surface structure 207b, wherein the connection area can be in the shape of a strip or a point, and the through hole 205 passes through the two curved surface structures at the same time. Figure 40c The structure shown, Figure 40d for Figure 40c Cross-section of the structure shown.

[0215] Step 3: Reference Figure 40e , the third curved structure 207c is fastened to the first curved structure 207a, and the peripheries of the first and third curved structures 207a and 207c are connected. Simultaneously, the fourth curved structure 207d is fastened to the second curved structure 207b, and the peripheries of the second and fourth curved structures 207b and 207d are connected. In this step, the first and third curved structures 207a and 207c, as well as the second and fourth curved structures 207b and 207d, can be connected by, but are not limited to, hot-melt bonding.

[0216] It can be understood that the curvature of the third curved surface structure 207c is opposite to that of the first curved surface structure 207a, and the curvature of the fourth curved surface structure 207d is opposite to that of the second curved surface structure 207b, so that the third curved surface structure 207c is connected to the first curved surface structure 207a to form a layer structure with a cavity, and the fourth curved surface structure 207d is connected to the second curved surface structure 207b to form a layer structure with a cavity, so that Figure 40f and Figure 40g The structure shown, wherein, in order to show the internal structure of the airbag 2, Figure 40f This is a schematic diagram of the structure of the airbag 2 with the two ends removed. Figure 40g It is a cross-sectional view of the airbag 2.

[0217] It's worth noting that in this embodiment, the structural surfaces of the two layers forming the airbag 2 do not need to be curved, as long as both layers of the resulting airbag 2 have cavities. Furthermore, the above steps are merely illustrative of the airbag 2 manufacturing process in this embodiment of the present application. In some possible embodiments, the through-hole 205 can be formed after the first curved surface structure 207a and the second curved surface structure 207b are stacked, and then the periphery of the through-hole 205 can be connected by a hot melt process or other method.

[0218] In addition to the above steps, you can also Figure 40f The obtained airbag 2 is subjected to a flattening treatment such as ironing the fold line to make the airbag 2 flat and regular. Figure 40h The structure shown. After the airbag 2 is flattened, the air nozzle 201 can be installed. The air nozzle 201 can be installed on the side of the second layer structure 203b of the airbag 2 away from the first layer structure 203a to facilitate the connection between the airbag 2 and the watch body 1. It is understood that the air hole of the air nozzle 201 can be connected to the second cavity 2032 of the second layer structure 203b. In addition, the above steps are an exemplary description of the preparation process of the airbag 2 in this embodiment of the present application. Based on this embodiment, those skilled in the art can make reasonable adjustments to the above steps to prepare the airbag 2 of the present application, and it should be understood that they fall within the scope of protection of this application.

[0219] Reference Figures 41a to 41h Another embodiment of the present application further provides a method for preparing an airbag 2, and the preparation steps are as follows:

[0220] Step 1: Reference Figure 41a, the first curved surface structure 207a and the second curved surface structure 207b are overlapped, and the third curved surface structure 207c and the fourth curved surface structure 207d are placed on both sides of the first curved surface structure 207a and the second curved surface structure 207b in a direction perpendicular to the overlapping direction of the first curved surface structure 207a and the second curved surface structure 207b; wherein the third curved surface structure 207c and the fourth curved surface structure 207d are bent in opposite directions, and in addition, the third curved surface structure 207c and the fourth curved surface structure 207d can be bent in a V-shape or a U-shape, but are not limited to.

[0221] Step 2: Attach two opposing edges of the first curved structure 207a to the third and fourth curved structures 207c and 207d, respectively, and securely connect them. Attach two opposing edges of the second curved structure 207b to the third and fourth curved structures 207c and 207d, respectively, and securely connect them. The first and second curved structures 207a and 207b, and the third and fourth curved structures 207c and 207d, can be connected, but are not limited to, by hot-melt bonding. In this step, the first curved surface structure 207a and the second curved surface structure 207b are overlapped with the third curved surface structure 207c and the fourth curved surface structure 207d from two opposite directions, so that the third curved surface structure 207c and the fourth curved surface structure 207d support the first curved surface structure 207a and the second curved surface structure 207b, that is, there may be a certain gap between the first curved surface structure 207a and the second curved surface structure 207b, so as to obtain Figure 41b The structure shown, Figure 41c Shown Figure 41b Cross-section of the structure.

[0222] Step 3: Open a through hole 205 on the first curved surface structure 207a and the second curved surface structure 207b, and the through hole 205 penetrates the two curved surface structures at the same time; in addition, connect the first curved surface structure 207a and the second curved surface structure 207b at the side of the through hole 205, and the connection method can be but not limited to hot melt bonding to obtain Figure 41d The structure shown, Figure 41e for Figure 41d Cross-section of the structure shown.

[0223] In addition, in step three, the first curved surface structure 207a and the second curved surface structure 207b may be connected first, and the connection area may be in a strip shape or a point shape, and then the through hole 205 may be opened at the connection area.

[0224] Step 4: Reference Figure 41f, the structure obtained in step 3 is placed between the first covering surface structure 208a and the second covering surface structure 208b. The two opposite edges of the first covering surface structure 208a are connected to the third curved surface structure 207c and the fourth curved surface structure 207d respectively; the two opposite edges of the second covering surface structure 208b are connected to the third curved surface structure 207c and the fourth curved surface structure 207d respectively, to obtain Figure 41g The structure shown, Figure 41h for Figure 41g Here, the first curved surface structure 207a, the first covering surface structure 208a, the third curved surface structure 207c, and the fourth curved surface structure 207d constitute the first layer structure 203a, which has a first cavity 2031. The second curved surface structure 207b, the second covering surface structure 208b, the third curved surface structure 207c, and the fourth curved surface structure 207d constitute the second layer structure 203b, which has a second cavity 2032.

[0225] After completing the above step 4, the air nozzle 201 can also be installed. The air nozzle 201 can be installed on the side of the second layer structure 203b away from the first layer structure 203a, so as to facilitate the connection between the formed air bag 2 and the watch body 1. It can be understood that the air hole of the air nozzle 201 can be connected to the second cavity 2032 of the second layer structure 203b. Figure 41g The openings at both ends of the obtained structure are joined by a hot melt process to form a closed airbag 2.

[0226] The airbag 2 produced using the method for producing the airbag 2 provided in this embodiment of the present application does not evert during inflation. It is worth noting that, in this embodiment, the first curved surface structure 207a and the second curved surface structure 207b do not need to be curved, as long as both layers of the produced airbag 2 have cavities. Furthermore, the above steps are merely illustrative of the production process of the airbag 2 in this embodiment of the present application. Based on this embodiment, those skilled in the art may reasonably adjust the above steps to produce the airbag 2 of the present application, and all such adjustments should be considered to fall within the scope of protection of this application.

[0227] In another possible embodiment of the present application, a method for preparing an airbag 2 is also provided, which is similar to the method for preparing an airbag 2 in the previous embodiment, except that: Figure 41d After forming the structure shown in FIG, the two edges of the opening of the third curved structure 207c are bent in directions away from each other, and the two edges of the opening of the fourth curved structure 207d are bent in directions away from each other, so as to obtain Figure 42a The structure shown. Figure 42b for Figure 42aIn the cross-sectional view of the structure shown in FIG, at this time, the cross-sectional shape of the third curved surface structure 207c and the fourth curved surface structure 207d is M-shaped.

[0228] In addition, refer to Figure 42c In this embodiment, the first covering surface structure 208a and the second covering surface structure 208b are smaller in size than those in the previous embodiment. The two opposite edges of the first covering surface structure 208a are respectively connected to the bent portions of the third curved surface structure 207c and the fourth curved surface structure 207d; the two opposite edges of the second covering surface structure 208b are respectively connected to the bent portions of the third curved surface structure 207c and the fourth curved surface structure 207d, resulting in Figure 42d The structure shown, Figure 42e for Figure 42d At this time, a first cavity 2031 is formed between the first curved surface structure 207a, the first covering surface structure 208a, the third curved surface structure 207c and the fourth curved surface structure 207d, and a second cavity 2032 is formed between the second curved surface structure 207b, the second covering surface structure 208b, the third curved surface structure 207c and the fourth curved surface structure 207d.

[0229] The other steps for preparing the airbag 2 of this embodiment can refer to the previous embodiment and will not be described in detail here. In addition, the above steps are merely illustrative of the preparation process of the airbag 2 of this embodiment of the present application. Based on this embodiment, those skilled in the art may make reasonable adjustments to the above steps to prepare the airbag 2 of the present application, and all such adjustments should be understood to fall within the scope of protection of this application.

[0230] Reference Figure 43 , Figure 43 The figure is a schematic diagram of the structure of an airbag 2 according to one embodiment of the present application. The airbag 2 obtained using the preparation methods of each of the above embodiments of the present application can include a two-layer structure. During use, the first layer 203a of the airbag 2 frequently comes into contact with the wearer's body. Long-term use can cause dirt to accumulate on the surface of the first layer 203a, making the airbag 2 itself difficult to clean. Based on this, the present application also provides a protective cover 6 that can be fitted over the first layer 203a of the airbag 2 and is detachably connected to the first layer 203a of the airbag 2.

[0231] When setting the protective cover 6, refer to Figures 44a to 44c The protective cover 6 includes a cover body 601, which is placed on the first layer structure 203a of the airbag. The cover body 601 can at least cover the surface of the first layer structure 203a that is away from the second layer structure 203b. The size of the cover body 601 can be specifically set according to the first layer structure 203a of the airbag 2. In addition, the cover body 601 can be, but is not limited to, a mesh structure made of textile fabric. In order to prevent the protective cover 6 from detaching from the airbag, such as Figure 43 In the first layer structure 203a of the airbag 2 shown, the protective cover 6 may further include a edging 602 , which is arranged around the edge of the cover body 601 and connected to the cover body 601 . The material of the edging 602 may be leather or other elastic materials.

[0232] Reference Figure 45 , Figure 45 The following illustrates the process of attaching a protective cover 6 to an airbag 2 according to an embodiment of the present application. Since both the airbag 2 and the protective cover 6 typically possess a certain degree of elasticity, the protective cover 6 can be attached to the first structure 203a of the airbag 2 based on their elastic deformation. This allows the protective cover 6 to adhere to the first structure 203a, preventing the protective cover 6 from falling off the first structure 203a during wear and use of the airbag 2.

[0233] Refer to Figure 45 and Figure 46 , Figure 46 The airbag is provided with a protective cover 6. Except for the contact surface between the first layer structure 203a and the second layer structure 203b of the airbag, the protective cover 6 completely covers the rest of the first layer structure 203a, which effectively improves the wearing comfort of the user. Moreover, since the protective cover 6 is detachably connected to the first layer structure 203a, the airbag 2 can be kept clean by cleaning or replacing the protective cover 6.

[0234] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wearable device, characterized in that: It includes a meter body, an airbag and an airbag cover, wherein: The airbag is detachably connected to one end of the watch body, and comprises a first layer structure and a second layer structure stacked on top of each other, wherein the first layer structure has a first cavity, the second layer structure has a second cavity, and the first cavity is in communication with the second cavity; The airbag cover is detachably connected to the watch body, and the airbag can be fixed to the watch body through the airbag cover; The second layer structure is provided with a gas nozzle, the gas hole of the gas nozzle is connected to the second cavity, and the end surface of the gas nozzle located inside the second layer structure is provided with a supporting protrusion, and the supporting protrusion is provided on the peripheral side of the gas hole of the gas nozzle; The airbag cover includes a pressing plate, a cover body and an elastic protrusion. The pressing plate and the cover body are fixedly connected. The pressing plate is provided with an air nozzle hole, and the air nozzle extends from the air nozzle hole. The cover body has an accommodating cavity. The elastic protrusion is provided in the accommodating cavity, and the elastic protrusion can move in a direction toward or away from the accommodating cavity.

2. The wearable device according to claim 1, wherein: The portion of the airbag provided with the air nozzle is located between the pressing plate and the cover plate body.

3. The wearable device according to claim 1, wherein: The elastic protrusion includes a convex cap and a third elastic member, and the third elastic member and the convex cap are elastically abutted against the bottom wall of the accommodating cavity of the cover body; the clamping plate is also provided with a convex cap hole, and the convex cap extends from the convex cap hole to the side of the clamping plate away from the cover body.

4. The wearable device according to claim 1, wherein: One end of the watch body detachably connected to the airbag is arranged on the bottom surface of the watch body, and the end is provided with a mounting groove, and the airbag and the airbag cover can be installed in the mounting groove so that the airbag and the airbag cover are detachably connected to the watch body.

5. The wearable device according to claim 4, wherein: The wearable device further includes a photoplethysmogram (PPG) module and an ECG detection module, and the PPG module and the ECG detection module are arranged on the bottom surface of the watch body.

6. The wearable device according to claim 4, wherein: The meter body includes an air chamber air pump and a pressure sensor. The air chamber has an air nozzle mounting port and an inlet / exhaust port. The air supply port of the air pump is connected to the inlet / exhaust port. The pressure sensor is used to detect the air pressure in the air chamber. The air nozzle is plugged into the air nozzle mounting port.

7. The wearable device according to claim 6, wherein: There is one gas nozzle mounting port and one gas nozzle.

8. The wearable device according to claim 4, wherein: A first flexible built-in object is provided in the first layer structure, and at least a portion of the first flexible built-in object is fixed to the inner wall of the first layer structure.

9. The wearable device according to claim 4, wherein: A second flexible built-in object is provided in the second layer structure, and one end of the second flexible built-in object is connected to the gas nozzle.

10. The wearable device according to claim 4, wherein: The cover body has a third bayonet and a fourth bayonet, and the third bayonet and the fourth bayonet are located at two opposite ends of the cover body; The watch body is provided with a third buckle and a fourth buckle, the third buckle and the fourth buckle can move in directions closer to or away from each other, and the third buckle can be engaged with the third bayonet, and the fourth buckle can be engaged with the fourth bayonet.

11. The wearable device according to claim 10, wherein: The clamping plate has a first end and a second end, and the first end and the second end are arranged back to back; the first end faces the fourth bayonet, and the first end is provided with a clamping portion; the cover body has a accommodating cavity, and the side wall of the accommodating cavity is provided with a clamping groove, and the clamping portion is inserted into the clamping groove.

12. The wearable device according to claim 10, wherein: The watch body is provided with a first accommodating groove and a second accommodating groove, the first accommodating groove is connected to the mounting groove through a first through hole, and the second accommodating groove is connected to the mounting groove through a second through hole; The third clip is accommodated in the first accommodating groove, and a fourth elastic member is provided between the third clip and the side wall of the first accommodating groove. The fourth elastic member elastically abuts against the third clip and the side wall of the first accommodating groove respectively, and a part of the third clip can extend from the first through hole to the installation groove; the fourth clip is accommodated in the second accommodating groove, and a fifth elastic member is provided between the fourth clip and the side wall of the second accommodating groove. The fifth elastic member elastically abuts against the fourth clip and the side wall of the second accommodating groove respectively, and a part of the fourth clip can extend from the second through hole to the installation groove.

13. The wearable device according to claim 12, wherein: The bottom surface of the watch body is further provided with a third through hole, the third through hole being connected to the first receiving groove; The watch body is also provided with a snap button, the third snap has an opening, the snap button passes through the opening and is installed in the third through hole; the snap button moves along the axial direction of the third through hole, which can drive the third snap to move toward or away from the first accommodating groove.

14. The wearable device according to claim 12 or 13, wherein: The watch body is further provided with a fourth through hole, the fourth through hole being connected to the second accommodating groove, and the opening direction of the fourth through hole is opposite to the opening direction of the mounting groove; The watch body is also provided with a snap bracket, which is installed in the fourth through hole; the snap bracket is provided with a protrusion, and the fourth snap is provided with a recessed portion, and the protrusion is inserted into the recessed portion; the protrusion and the recessed portion are loosely matched, and the protrusion limits the movement of the fourth snap toward the third snap.

15. The wearable device according to claim 14, wherein: The watch body is further provided with a snap cover plate, which is fixedly connected to the watch body; the snap bracket is located between the fourth snap and the snap cover plate, and the snap cover plate abuts against the snap bracket.

16. The wearable device according to any one of claims 1 to 9, wherein: The airbag cover is provided with a magnet, the meter body is provided with a Hall element, and the magnet is matched with the Hall element.

17. The wearable device according to any one of claims 4 to 9, wherein: The airbag cover includes a first magnetic element, and the first magnetic element is arranged on the cover body; A second magnetic element is provided in the installation groove, and the first magnetic element and the second magnetic element are attracted to each other.

18. The wearable device according to any one of claims 1 to 9, wherein: The wearable device further includes a protective cover, which is sleeved on the first layer structure of the airbag and is detachably connected to the first layer structure.

19. The wearable device according to claim 18, wherein: The protective cover comprises a cover body and a rim, wherein the cover body at least covers a surface of the first layer structure that faces away from the second layer structure, and the rim is arranged around an edge of the cover body.

20. The wearable device according to any one of claims 4 to 9, wherein: A fifth bayonet is provided on the first side wall of the mounting groove, and a fifth buckle is provided on the first end of the airbag cover. The fifth buckle can be engaged with the fifth bayonet.

21. The wearable device according to claim 20, wherein: The first end of the airbag cover is provided with a second elastic member, a first accommodating cavity and a first opening. The second elastic member is located between the fifth clip and the side wall of the first accommodating cavity, and elastically abuts against the fifth clip and the side wall of the first accommodating cavity respectively. Part of the fifth clip can extend out of the first accommodating cavity through the first opening.

22. The wearable device according to claim 20, wherein: The airbag cover further includes a buckle, which is mounted on the second opening of the airbag cover. The buckle moves in a direction toward or away from the fifth bayonet, driving the fifth buckle to move in a direction toward or away from the fifth bayonet.

23. The wearable device according to any one of claims 4 to 9, wherein: A sixth clip is provided on the second side wall of the mounting groove, and a sixth bayonet is provided on the second end of the airbag cover. The sixth clip can be engaged with the sixth bayonet.

24. The wearable device according to claim 23, wherein: The watch body is provided with a second accommodating cavity, the mounting groove is connected to the second accommodating cavity through a second through hole, a third elastic member is provided between the sixth clip and the side wall of the second accommodating cavity, and the third elastic member elastically abuts against the sixth clip and the side wall of the second accommodating cavity respectively.

25. An airbag assembly, characterized in that: Including airbag and airbag cover, The airbag can be detachably fixed to the watch body via an airbag cover; The airbag includes a first layer structure and a second layer structure stacked together, the first layer structure having a first cavity, the second layer structure having a second cavity, the first cavity communicating with the second cavity; the second layer structure is provided with an air nozzle, the air hole of the air nozzle communicating with the second cavity, and the end surface of the air nozzle located inside the second layer structure is provided with a supporting protrusion, the supporting protrusion being provided around the air hole of the air nozzle; The airbag cover includes an elastic protrusion. The airbag cover has an accommodating cavity. The elastic protrusion is arranged in the accommodating cavity, and the elastic protrusion can move in a direction toward or away from the accommodating cavity.

26. The airbag assembly of claim 25, wherein: The airbag cover includes a cover body and a pressing plate, wherein the pressing plate is fixedly connected to the cover body; the pressing plate is provided with an air nozzle hole, the part of the airbag provided with the air nozzle is located between the pressing plate and the cover body, and the air nozzle extends out of the air nozzle hole.

27. The airbag assembly of claim 26, wherein: The elastic protrusion includes a convex cap and a third elastic member, and the third elastic member and the convex cap are elastically abutted against the bottom wall of the accommodating cavity of the cover body; the clamping plate is also provided with a convex cap hole, and the convex cap extends from the convex cap hole to the side of the clamping plate away from the cover body.

28. The airbag assembly according to any one of claims 25 to 27, further comprising a protective cover, wherein the protective cover is disposed on the first layer structure of the airbag and is detachably connected to the first layer structure.

29. The airbag assembly of claim 28, wherein: The protective cover comprises a cover body and a rim, wherein the cover body at least covers a surface of the first layer structure that faces away from the second layer structure, and the rim is arranged around an edge of the cover body.

30. The airbag assembly according to any one of claims 25 to 27, wherein: A first flexible built-in object is provided in the first layer structure, and at least a portion of the first flexible built-in object is fixed to the inner wall of the first layer structure.

31. The airbag assembly according to any one of claims 25 to 27, wherein: A second flexible built-in object is provided in the second layer structure, and one end of the second flexible built-in object is connected to the gas nozzle.

32. The airbag assembly according to any one of claims 25 to 27, wherein: The airbag cover includes a first magnetic element, which is arranged on the cover body; the first magnetic element and the second magnetic element arranged on the cover body are attracted to each other.

33. The airbag assembly according to any one of claims 25 to 27, wherein: A first buckle is provided at the first end portion of the airbag cover, and the first buckle can be engaged with a first bayonet provided on the watch body.

34. The airbag assembly according to claim 33, wherein: The first end of the airbag cover is provided with a second elastic member, a first accommodating cavity and a first opening. The second elastic member is located between the first clip and the side wall of the first accommodating cavity, and elastically abuts against the first clip and the side wall of the first accommodating cavity respectively. Part of the first clip can extend out of the first accommodating cavity through the first opening.

35. The airbag assembly of claim 33, wherein: The airbag cover further includes a buckle, which is mounted on the second opening of the airbag cover. The buckle moves in a direction toward or away from the first bayonet, driving the first buckle to move in a direction toward or away from the first bayonet.

36. The airbag assembly according to any one of claims 25 to 27, characterized in that: The second end of the airbag cover is provided with a second bayonet, and the second bayonet can be engaged with a second buckle provided on the watch body.

37. A wearable device comprising the airbag assembly according to any one of claims 25 to 36 and a watch body.

38. The wearable device of claim 37, further comprising a watch strap.

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