Watchband structure and wearable device

Abstract

The watchband structure comprises a watchband body, the watchband body comprises a first watchband layer and a second watchband layer, and the first watchband layer and the second watchband layer are arranged in a stacked mode. The host fixing frame is positioned in the middle of the first watchband layer; the flexible circuit board is positioned between the first watchband layer and the second watchband layer; one side, close to the first watchband layer, of the second watchband layer comprises a mounting groove formed by sinking and a positioning column formed by protruding, and the host fixing frame is mounted on the positioning column; the flexible circuit board is installed in the installation groove, and the first watchband layer covers the flexible circuit board. By designing the structure of the watchband main body, the flexible circuit board and the monitoring sensor are packaged in the watchband main body, and only the first contact terminal of the flexible circuit board is arranged in the host mounting frame to realize connection and conduction with the host, so that the occupation of the mounting space in the host fixing frame is reduced; and the requirements of miniaturization, light weight, lightness, thinness and waterproofness are met.

Description

Technical Field

[0001] The utility model relates to the technical field of wearable devices, and more specifically, to a watchband structure and a wearable device. Background Art

[0002] Smart wearable devices have many functions such as being worn close to the body and being able to detect physical health conditions at any time. In recent years, more and more people have begun to pay attention to, recognize and use smart wearable products. Smart wearable devices generally include a host, a strap and a monitoring sensor. The wearable device is installed on the wearer's wrist through the strap. The monitoring sensor is used to monitor the wearer's heart rate and other health indicators. When the strap is tightened around the wrist, the monitoring sensor can contact the wrist to detect the wearer's health indicators. The monitoring sensor is connected to the host through a flexible circuit board. In the existing solution, the monitoring sensor and the flexible circuit board are generally installed in the host fixing frame, which increases the thickness of the host fixing frame and is not light and compact enough. In order to meet the miniaturization, lightweight, thinness and waterproof requirements of smart wearable devices, the packaging of monitoring sensors and flexible circuit boards has become a technical difficulty. Utility Model Content

[0003] In view of the above problems, one object of the present invention is to provide a watch band structure.

[0004] Another object of the present invention is to provide a wearable device including the above-mentioned strap structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] According to one aspect of the utility model, there is provided a watchband structure, comprising:

[0007] A strap body, the strap body comprising a first strap layer and a second strap layer stacked in a direction perpendicular to the strap body, the first strap layer and the second strap layer being bonded and fixed, and a surface of the second strap layer facing away from the first strap layer being a human body contact surface;

[0008] A host fixing frame located in the middle of the first strap layer; and

[0009] a flexible circuit board located between the first strap layer and the second strap layer;

[0010] The side of the second strap layer close to the first strap layer includes a mounting groove formed by being recessed in a direction away from the first strap layer, and a positioning column formed by being protruded in a direction close to the first strap layer, and the host fixing frame is installed on the positioning column;

[0011] The flexible circuit board is installed in the installation groove, and the first surface layer covers the flexible circuit board.

[0012] In addition, an optional solution is that the flexible circuit board includes a first contact terminal, the bottom wall of the host fixing frame is provided with an opening corresponding to the first contact terminal, the first contact terminal is inserted into the opening, and the contact end of the first contact terminal is located in the host fixing frame.

[0013] In addition, an optional solution is that the installation groove includes a plurality of fixing columns protruding in a direction close to the first strap layer;

[0014] The flexible circuit board is provided with a fixing hole corresponding to the positioning column, and the fixing column is correspondingly penetrated into the fixing hole to fix the flexible circuit board.

[0015] In addition, an optional solution is that a positioning hole is opened on the bottom wall of the host fixing frame, the positioning hole is located at the center of the bottom wall of the host fixing frame, and is arranged to correspond to the positioning column, and the host fixing frame is installed on the positioning column through the positioning hole.

[0016] In addition, an optional solution is that the host fixing frame includes a first frame body and a second frame body;

[0017] The first frame is fixed to the middle of the first strap layer, and the second frame is located between the first frame and the second strap layer;

[0018] The first frame includes a first bottom plate, a first side wall portion surrounding the four edges of the first bottom plate, and a second side wall portion formed by bending the top edge of the first side wall portion downward, the first side wall portion and the second side wall portion are arranged in parallel, and a mounting gap is included between the first side wall portion and the second side wall portion;

[0019] The second frame includes a second bottom plate and a third side wall portion surrounding four edges of the first bottom plate, and the third side wall portion is clamped in the installation gap to connect the first frame and the second frame;

[0020] The first bottom plate and the second bottom plate both include penetrating positioning holes.

[0021] In addition, an optional solution is that the second frame body further includes a limiting portion formed by extending the top edge of the third side wall portion toward the inside of the second frame body;

[0022] The first side wall portion includes a slot corresponding to the limiting portion, and when the second frame is installed on the first frame, the limiting portion extends through the slot to the inside of the host fixing frame;

[0023] One end of the limiting portion located in the mainframe fixing frame comprises a guide surface, and the guide surface is inclined downward from a side close to the third side wall portion to a side away from the third side wall portion.

[0024] In addition, an optional solution is that the first strap layer includes a first strap portion and a second strap portion, and the first strap portion and the second strap portion are respectively combined and fixed to two opposite sides of the host fixing frame.

[0025] In addition, an optional solution is that the strap structure further includes a monitoring sensor, and the detection sensor is connected to the flexible circuit board;

[0026] The installation groove includes a through hole, and the monitoring sensor is located in the through hole and contacts the human body for monitoring.

[0027] In addition, an optional solution is that a side of the second strap layer close to the first strap layer includes a plurality of first receiving grooves that are recessed in a direction away from the first strap layer, and the plurality of first receiving grooves are evenly arranged along the length direction of the second strap layer;

[0028] The first strap layer comprises a plurality of second receiving grooves which are recessed in a direction away from the second strap layer on one side thereof, and the plurality of second receiving grooves are evenly arranged along the length direction of the first strap layer;

[0029] The first receiving groove and the second receiving groove are correspondingly buckled to form an receiving cavity, and a magnet is arranged in the receiving cavity.

[0030] According to another aspect of the utility model, there is provided a wearable device, comprising a host and a strap structure, wherein the host is installed in the host fixing frame;

[0031] The bottom of the host includes a second contact terminal, and the host is connected to the flexible circuit board through the second contact terminal.

[0032] In addition, an optional solution is that the center of the bottom of the host includes a limiting buckle, and the limiting buckle includes a first limiting column fixed to the bottom of the host and a second limiting column fixed to a side of the first limiting column away from the host, and the diameter of the second limiting column is greater than the diameter of the first limiting column;

[0033] A stepped hole corresponding to the position-limiting buckle is provided at the center of the positioning column, including a first hole section and a second hole section that are connected, the first hole section is located on a side of the positioning column close to the host, and the inner diameter of the first hole section is smaller than the inner diameter of the second hole section;

[0034] The first limiting column is located in the first hole segment, and the second limiting column is located in the second hole segment.

[0035] The beneficial effects of the utility model are as follows:

[0036] In view of the technical problems existing in the prior art, a watch strap structure and a wearable device are provided. By designing the structure of the watch strap body, a flexible circuit board and a monitoring sensor are encapsulated in the watch strap body, and only the first contact terminal of the flexible circuit board is placed in the host installation frame to achieve connection with the host, thereby reducing the thickness of the host fixing frame and the occupation of the installation space in the host fixing frame, thereby meeting the miniaturization, lightweight, thinness and waterproof requirements of smart wearable devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0038] Figure 1 A structural schematic diagram of a watch strap structure provided by an embodiment of the utility model is shown.

[0039] Figure 2 A schematic diagram of an exploded view of a watch strap structure provided by the present novel embodiment is shown.

[0040] Figure 3 A cross-sectional view of a host fixing frame provided by an embodiment of the utility model is shown.

[0041] Figure 4 The figure shows an exploded schematic diagram of a host fixing frame provided by an embodiment of the utility model.

[0042] Figure 5 A schematic diagram showing the connection between the watch strap structure and the host provided by an embodiment of the utility model is shown.

[0043] Figure 6 A schematic structural diagram of a wearable device provided by an embodiment of the utility model is shown.

[0044] Figure 7 A schematic diagram of the bottom structure of a host provided by an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "on" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them.

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] Smart wearable devices have many functions such as being worn close to the body and being able to detect physical health conditions at any time. In recent years, more and more people have begun to pay attention to, recognize and use smart wearable products. Smart wearable devices generally include a host, a strap and a monitoring sensor. The wearable device is installed on the wearer's wrist through the strap. The monitoring sensor is used to monitor the wearer's heart rate and other health indicators. When the strap is tightened around the wrist, the monitoring sensor can contact the wrist to detect the wearer's health indicators. The monitoring sensor is connected to the host through a flexible circuit board. In the existing solution, the monitoring sensor and the flexible circuit board are generally installed in the host fixing frame, which increases the thickness of the host fixing frame and is not light and compact enough. In order to meet the miniaturization, lightweight, thinness and waterproof requirements of smart wearable devices, the packaging of monitoring sensors and flexible circuit boards has become a technical difficulty.

[0050] In view of the defects of the prior art, the utility model provides a watch strap structure, combined with Figure 1-4 As shown, the strap structure 100 includes a strap body 1, a host fixing frame 2, a flexible circuit board 3 and a monitoring sensor 4.

[0051] like Figure 2As shown, the strap body 1 includes a first strap layer 11 and a second strap layer 12 stacked in a direction perpendicular to the strap body, the first strap layer 11 and the second strap layer 12 are bonded and fixed, and the surface of the second strap layer 12 facing away from the first strap layer 11 is a human body contact surface, and the first strap layer 11 and the second strap layer 12 are both made of soft silicone material, which is soft, waterproof and sweat-proof, and will not cause irritation to the skin when worn. Its soft and conformable characteristics enable the strap body 1 to fit the human wrist better.

[0052] The host fixing frame 2 is fixed on the strap body 1, specifically fixed to the middle of the first strap layer 11. The host fixing frame 2 is used to install and fix the host 200, so that the host 200 is connected to the monitoring sensor 4 through the flexible circuit board 3.

[0053] In one embodiment, the flexible circuit board 3 is installed between the first surface layer 11 and the second surface layer 12. Figure 2 As shown, the side of the second surface layer 12 close to the first surface layer 11 includes a mounting groove 121 that is recessed in a direction away from the first surface layer 11, and the flexible circuit board 3 is installed in the mounting groove 121. The first surface layer 11 covers the flexible circuit board 3, and the edges of the first surface layer 11 and the second surface layer 12 are bonded and fixed to wrap the flexible circuit board 3 between the first surface layer 11 and the second surface layer 12, so as to encapsulate and fix the flexible circuit board 3.

[0054] In this embodiment, Figure 2 As shown, the mounting groove 121 includes a plurality of fixing posts 122 protruding toward the first strap layer 11. Accordingly, the flexible circuit board 3 is provided with fixing holes 31 corresponding to the positioning posts 122. Figure 4 As shown, when the flexible circuit board 3 is installed in the installation groove 121, the fixing column 122 is inserted into the fixing hole 31 to realize the installation and positioning of the flexible circuit board 3. Specifically, the fixing holes 31 are respectively located at the four corners of the flexible circuit board 3, and the fixing columns 122 and the fixing holes 31 are arranged one by one. Furthermore, another fixing hole 31 can be added between two adjacent fixing holes 31 in the length direction of the flexible circuit board 3 to further limit the position of the flexible circuit board 3, so as to prevent the flexible circuit board 3 from bulging when worn, which affects the comfort and the accuracy of the monitoring results.

[0055] In one embodiment, Figure 2 As shown, the installation groove 121 also includes a through hole 123 that penetrates the upper and lower surfaces of the second strap layer 12. The monitoring sensor 4 is accommodated in the through hole 123. When the strap body 1 is worn on the human wrist, the monitoring sensor 4 can contact the human body to monitor the health data of the human body, and is connected to the host 200 through the flexible circuit board 3 to transmit data to the host 200 and provide data feedback.

[0056] In a specific embodiment, the flexible circuit board 3 includes a first contact terminal 32, and the first contact terminal 32 is used to contact and conduct with the host 200 to achieve data connection between the host 200 and the monitoring sensor 4. The first contact terminal 32 is located on a side of the flexible circuit board 3 close to the host fixing frame 2. When the first strap layer 11 covers the second strap layer 12, the first contact terminal 32 is located inside the host fixing frame 2.

[0057] In this embodiment, the bottom wall of the host fixing frame 2 is provided with an opening 21 corresponding to the first contact terminal 32. When the first strap layer 11 covers the second strap layer 12, the host fixing frame 2 is placed in the middle of the second strap layer 12, and the first contact terminal 32 is passed through the opening 21. The contact end of the first contact terminal 32 is located inside the host fixing frame 2. When the host 200 is installed in the host fixing frame 2, the second contact terminal 201 at the bottom of the host 200 can be connected with the contact end of the first contact terminal 32 to achieve connection between the host 200 and the flexible circuit board 3.

[0058] In this embodiment, the flexible circuit board 3 includes four first contact terminals 32 arranged along the width direction of the flexible circuit board 3. Correspondingly, the host fixing frame 2 includes four openings 21 so that the contact ends of the four first contact terminals 32 can be accommodated in the host fixing frame 2.

[0059] In a specific embodiment, the side of the second strap layer 12 close to the first strap layer 11 includes a positioning column 124 protruding in a direction close to the first strap layer 11, and the host fixing frame 2 is installed on the positioning column 124, and the installation and positioning of the host fixing frame 2 on the second strap layer 12 is achieved through the positioning column 123.

[0060] In this embodiment, a through positioning hole 22 is provided on the bottom wall of the host fixing frame 2. The positioning hole 22 is located at the center of the bottom wall of the host fixing frame 2 and is arranged in correspondence with the positioning post 124. When the host fixing frame 2 is installed on the second strap layer 12, the host fixing frame 2 is installed and positioned on the second strap layer 12 through the cooperation of the positioning hole 22 and the positioning post 124.

[0061] In one embodiment, the first strap layer 11 includes a first strap portion 111 and a second strap portion 112 , and the first strap portion 111 and the second strap portion 112 are respectively fixed to two opposite sides of the host fixing frame 2 .

[0062] In a specific embodiment, the host fixing frame 2 includes a first frame body 23 and a second frame body 24. The first frame body 23 is fixed to the middle part of the first strap layer 11, and is specifically connected between the first strap portion 111 and the second strap portion 112. The first frame body 23 can be integrally formed with the first strap portion 111 and the second strap portion 112, or they can be formed separately and then connected and fixed. The second frame body 24 is located between the first frame body 23 and the second strap layer 12, and is connected to the first frame body 23 by snapping.

[0063] The first frame body 23 includes a first bottom plate 231, a first side wall portion 232 surrounding the four edges of the first bottom plate 231, and a second side wall portion 233 formed by bending the top edge of the first side wall portion 232 downward. The first side wall portion 232 and the second side wall portion 233 are arranged in parallel, and there is an installation gap between the two.

[0064] The second frame body 24 includes a second bottom plate 241 and a third side wall portion 242 surrounding four edges of the second bottom plate 241 . The third side wall portion 242 is snapped into the installation gap to achieve connection and fixation between the first frame body 23 and the second frame body 24 . In this embodiment, the surface of the first bottom plate 231 on one side facing away from the second bottom plate 241 is the bearing surface of the host 200. In order to ensure a stable connection between the host 200 and the flexible circuit board 3, an opening 21 for the first contact terminal 32 to pass through is provided on the first bottom plate 231 and the second bottom plate 241; at the same time, a positioning hole 22 corresponding to the positioning column 124 is provided in the center of the first bottom plate 231 and the second bottom plate 241. When assembling the strap structure, the flexible circuit board 3 is first placed on the second strap layer 12, and then the second frame body 24 is placed on the second strap layer 12, and is connected to the first contact terminal 32 and the positioning column 124 accordingly. Then, the first strap layer 11 and the first frame body 23 are covered on the second strap layer 12, and the first frame body 23 is pressed down to connect and fix the first frame body 23 and the second frame body 24, and then the edges of the first strap layer 11 and the second strap layer 12 are bonded accordingly to obtain the strap structure provided by the embodiment of the utility model.

[0065] In a specific embodiment, Figure 3-4 As shown, the second frame body 24 also includes a limiting portion 243 formed by extending from the top edge of the third side wall portion 242 toward the interior of the second frame body 24, and the limiting portion 243 is used to snap fit with the host 200 to ensure that the host 200 and the host fixing frame 2 are tightly fitted to prevent the host 200 from falling off the host fixing frame 2.

[0066] The first side wall portion 232 includes a slot 234 corresponding to the limiting portion 243, and the slot 234 runs through the two side surfaces of the first side wall portion 232. When the second frame 24 is installed in the first frame 23, the third side wall portion 242 is located in the installation gap, and the limiting portion 243 extends through the slot 234 to the inside of the first frame 23, and can be engaged with the host 200 installed in the host fixing frame 2 to limit the host 200. Correspondingly, the side wall of the host 200 includes a limiting slot 202 corresponding to the limiting portion 243, as shown in FIG. Figure 5 As shown, when the host 200 is installed in the host fixing frame 2, the limiting portion 243 is engaged in the limiting groove 202 to limit the host 200 and prevent the host 200 from falling off.

[0067] In this embodiment, the first frame body 23 and the second frame body 24 are both made of elastic material, and the end of the limiting portion 243 located in the host fixing frame 2 includes a guide surface 2430, and the guide surface 2430 is inclined downward from the side close to the third side wall portion 242 to the side away from the third side wall portion 242. The guide surface 2430 can play a buffering role when the first frame body 23 and the second frame body 24 are combined and installed, and when the host 200 is installed in the host fixing frame 2, thereby reducing the resistance generated by the limiting portion 243 during assembly, protecting the host 200 and the first frame body 23 from damage, and making the connection operation more time-saving and labor-saving.

[0068] In a specific embodiment, a side surface of the second strap layer 12 close to the first strap layer 11 includes a plurality of first receiving grooves 125 that are recessed in a direction away from the first strap layer 11, and the plurality of first receiving grooves 125 are evenly arranged along the length direction of the second strap layer 12; correspondingly, a side surface of the first strap layer 11 close to the second strap layer 12 includes a plurality of second receiving grooves 110 that are recessed in a direction away from the second strap layer 12, and the plurality of second receiving grooves 110 are evenly arranged along the length direction of the first strap layer 11.

[0069] When the first strap layer 11 and the second strap layer 12 are bonded and fixed, the first receiving groove 125 and the second receiving groove 110 are correspondingly buckled to form a receiving cavity, and a magnet 5 is arranged in the receiving cavity. The magnet 5 is wrapped by the first strap layer 11 and the second strap layer 12 in each receiving cavity. By arranging the magnet 5, the two ends of the strap body 1 are overlapped to fix the strap structure to the wrist of the human body.

[0070] Another embodiment of the present invention provides a wearable device, which is a portable device that is worn directly on the body. The wearable device may include but is not limited to a watch, a smart bracelet, a smart wristband, etc. Figure 5-7As shown, the wearable device includes a host 200 and a strap structure 100 provided in the above embodiment, and the host 200 is installed in a host fixing frame 2 of the strap structure 100. The bottom of the host 200 includes a second contact terminal 201, and the second contact terminal 201 and the first contact terminal 32 are correspondingly arranged. When the host 200 is installed in the host fixing frame 2, the second contact terminal 201 at the bottom of the host 200 can be in contact and conduction with the contact end of the first contact terminal 32, so as to realize the connection and conduction between the host 200 and the flexible circuit board 3.

[0071] In a specific embodiment, the bottom center of the host 200 includes a limit buckle 6, which includes a first limit column 61 fixed to the bottom of the host 200, and a second limit column 62 fixed to the side of the first limit column 61 away from the host 200, and the diameter of the second limit column 62 is greater than the diameter of the first limit column 61.

[0072] The center of the positioning column 124 is provided with a stepped hole 7 corresponding to the limiting buckle 6. The stepped hole 7 includes a first hole section and a second hole section that are connected. The first hole section is located on the side of the positioning column 124 close to the host 200, and the inner diameter of the first hole section is smaller than the inner diameter of the second hole section. The first limiting column 61 is located in the first hole section, and the second limiting column 62 is located in the second hole section. The end of the second limiting column 62 away from the first limiting column 61 includes a chamfer, so that the second limiting column 62 can enter the second hole section from the first hole section, and the limiting buckle 6 cannot fall out of the stepped hole 7 without external force. Through the cooperation of the stepped hole 7 and the limiting buckle 6, the host 200 and the strap structure 100 are further connected to prevent the host 200 from accidentally falling off and being damaged.

[0073] The watchband structure and wearable device provided by the embodiment of the utility model are designed to encapsulate the flexible circuit board and the monitoring sensor in the watchband body through the structure of the watchband body, and only the first contact terminal of the flexible circuit board is placed in the host installation frame to achieve connection and conduction with the host, thereby reducing the thickness of the host fixing frame and the occupation of the installation space in the host fixing frame, thereby meeting the miniaturization, lightweight, thinness and waterproof requirements of smart wearable devices.

[0074] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A watchband structure, characterized in that: include: A strap body, the strap body comprising a first strap layer and a second strap layer stacked in a direction perpendicular to the strap body, the first strap layer and the second strap layer being bonded and fixed, and a surface of the second strap layer facing away from the first strap layer being a human body contact surface; A host fixing frame located in the middle of the first strap layer; as well as a flexible circuit board located between the first strap layer and the second strap layer; The side of the second strap layer close to the first strap layer includes a mounting groove formed by being recessed in a direction away from the first strap layer, and a positioning column formed by being protruded in a direction close to the first strap layer, and the host fixing frame is installed on the positioning column; The flexible circuit board is installed in the installation groove, and the first surface layer covers the flexible circuit board.

2. The watchband structure according to claim 1, characterized in that: The flexible circuit board includes a first contact terminal, the bottom wall of the host fixing frame is provided with an opening corresponding to the first contact terminal, the first contact terminal is inserted into the opening, and the contact end of the first contact terminal is located in the host fixing frame.

3. The watchband structure according to claim 1, characterized in that: The installation groove includes a plurality of fixing columns protruding toward the direction close to the first surface band layer; The flexible circuit board is provided with a fixing hole corresponding to the positioning column, and the fixing column is correspondingly penetrated into the fixing hole to fix the flexible circuit board.

4. The watchband structure according to claim 1, characterized in that: The bottom wall of the host fixing frame is provided with a positioning hole, the positioning hole is located at the center of the bottom wall of the host fixing frame, and is arranged to correspond to the positioning column. The host fixing frame is installed on the positioning column through the positioning hole.

5. The watchband structure according to claim 4, characterized in that: The host fixing frame includes a first frame body and a second frame body; The first frame is fixed to the middle of the first strap layer, and the second frame is located between the first frame and the second strap layer; The first frame includes a first bottom plate, a first side wall portion surrounding the four edges of the first bottom plate, and a second side wall portion formed by bending the top edge of the first side wall portion downward, the first side wall portion and the second side wall portion are arranged in parallel, and a mounting gap is included between the first side wall portion and the second side wall portion; The second frame includes a second bottom plate and a third side wall portion surrounding four edges of the first bottom plate, and the third side wall portion is clamped in the installation gap to connect the first frame and the second frame; The first bottom plate and the second bottom plate both include penetrating positioning holes.

6. The watchband structure according to claim 5, characterized in that: The second frame body further includes a limiting portion formed by extending the top edge of the third side wall portion toward the inside of the second frame body; The first side wall portion includes a slot corresponding to the limiting portion, and when the second frame is installed on the first frame, the limiting portion extends through the slot to the inside of the host fixing frame; One end of the limiting portion located in the mainframe fixing frame comprises a guide surface, and the guide surface is inclined downward from a side close to the third side wall portion to a side away from the third side wall portion.

7. The watchband structure according to claim 1, characterized in that: The first strap layer includes a first strap portion and a second strap portion, and the first strap portion and the second strap portion are respectively combined and fixed to two opposite sides of the host fixing frame.

8. The watchband structure according to claim 1, characterized in that: The strap structure further includes a monitoring sensor, which is connected to the flexible circuit board; The installation groove includes a through hole, and the monitoring sensor is located in the through hole and contacts the human body for monitoring.

9. The watchband structure according to claim 1, characterized in that: A side of the second strap layer close to the first strap layer includes a plurality of first receiving grooves that are recessed in a direction away from the first strap layer, and the plurality of first receiving grooves are evenly arranged along the length direction of the second strap layer; The first strap layer comprises a plurality of second receiving grooves which are recessed in a direction away from the second strap layer on one side thereof, and the plurality of second receiving grooves are evenly arranged along the length direction of the first strap layer; The first receiving groove and the second receiving groove are correspondingly buckled to form an receiving cavity, and a magnet is arranged in the receiving cavity.

10. A wearable device, characterized in that: It comprises a host and a strap structure as claimed in any one of claims 1 to 9, wherein the host is installed in the host fixing frame; The bottom of the host includes a second contact terminal, and the host is connected to the flexible circuit board through the second contact terminal.

11. The wearable device according to claim 10, characterized in that: The center of the bottom of the mainframe includes a limit buckle, the limit buckle includes a first limit column fixed to the bottom of the mainframe and a second limit column fixed to the side of the first limit column away from the mainframe, the diameter of the second limit column is greater than the diameter of the first limit column; A stepped hole corresponding to the position-limiting buckle is provided at the center of the positioning column, including a first hole section and a second hole section that are connected, the first hole section is located on a side of the positioning column close to the host, and the inner diameter of the first hole section is smaller than the inner diameter of the second hole section; The first limiting column is located in the first hole segment, and the second limiting column is located in the second hole segment.

Images