Wearable device

Abstract

This application provides a wearable device, including: a device body having a receiving cavity with an inner surface in a first direction; a first mating member slidably disposed in the receiving cavity in a second direction, the first mating member having a side end face in the first direction; a spring piece disposed between the side end face of the first mating member and the inner surface of the receiving cavity, and providing a resetting force in the second direction; and a device fixing strap with a second mating member configured to pass through the receiving cavity in a third direction and engage with the first mating member. The wearable device provided by this application has the advantage of rationally utilizing the lateral direction of the wearable device and shortening its longitudinal length.

Description

Technical Field

[0001] This application relates to the field of wearable device technology, and more particularly to a wearable device. Background Technology

[0002] Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories.

[0003] In related technologies, watches, wristbands, and similar devices are all wearable devices, which may include a display unit and a restraining unit. The display unit is used to display information such as time and steps, while the restraining unit is a strap-like structure used to secure the display unit to the user.

[0004] However, the connection between the binding part and the display part occupies a large portion of the vertical space of the display part, affecting the appearance of the display part. Summary of the Invention

[0005] This application provides a wearable device to solve the problem that the connection between the restraint part and the display part occupies a large amount of the vertical space of the display part, affecting the appearance of the display part.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] One aspect of this application provides a wearable device, comprising: a device body having a receiving cavity having an inner surface in a first direction; a first mating member slidably disposed in the receiving cavity along a second direction, the first mating member having a side end face in the first direction; a spring piece disposed between the side end face of the first mating member and the inner surface of the receiving cavity, and providing a reset dispersing force along the second direction; a device fixing strap having a second mating member configured to pass through the receiving cavity along a third direction and engage with the first mating member; the first direction, the second direction, and the third direction intersect each other.

[0008] In one possible implementation, the spring has a fixed end and a free end along the first direction; one of the side end face of the first mating member and the inner surface of the accommodating cavity is fixed to the fixed end of the spring; the other of the side end face of the first mating member and the inner surface of the accommodating cavity abuts against the free end of the spring; one of the side end face of the first mating member abutting against the free end of the spring and the inner surface of the accommodating cavity is inclined relative to the second direction.

[0009] In one possible implementation, when the side end face of the first mating member is fixed to the fixed end of the spring, at least a portion of the inner surface of the accommodating cavity abuts against the free end of the spring and is inclined toward the positive direction of the second direction and the outside of the accommodating cavity.

[0010] In one possible implementation, the free end of the spring is located on the side of the fixed end of the spring facing the positive direction in the second direction.

[0011] In one possible implementation, the spring and the first mating part are a single piece manufactured using an integral molding process.

[0012] In one possible implementation, the connection between the fixed end of the spring and the first mating member has an arc surface, the center of which is oriented in the positive direction of the second direction.

[0013] In one possible implementation, when the inner side of the accommodating cavity is fixed to the fixed end of the spring, at least a portion of the side end face of the first mating member abuts against the free end of the spring and is inclined toward the positive direction of the second direction and the outside of the accommodating cavity.

[0014] In one possible implementation, the free end of the spring is located on the side opposite to the fixed end of the spring in the second direction, and the tilt direction of the spring is the same as the tilt direction of at least a portion of the side end face of the first mating member.

[0015] In one possible implementation, the first mating member includes a body portion and a crossbeam portion. The body portion has an opening at one end in the second direction, and the crossbeam portion extends along the first direction and is disposed within the opening of the body portion, forming a through groove with the body portion. The second mating member is configured to pass through the through groove of the first mating member and engage with the crossbeam portion.

[0016] In one possible implementation, the end face of the beam portion away from the through groove is provided with a reinforcing rib, which extends along the first direction.

[0017] The wearable device provided in this application includes a device body, a second part, a first mating member, and a device fixing strap. The device body has a receiving cavity with an inner surface in a first direction. The first mating member is slidably disposed in the receiving cavity along a second direction and has a side end face in the first direction. The device fixing strap has a second mating member that can pass through the receiving cavity in a third direction and engage with the first mating member. A spring is provided between the side end face of the first mating member and the inner surface of the receiving cavity, providing a resetting force along the second direction. Compared to longitudinally positioned elastic members in related technologies, this method has the advantage of rationally utilizing the lateral direction of the wearable device and shortening its longitudinal length.

[0018] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] Figure 1 An exploded view of a wearable device provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 A cross-sectional view of the first mating component of the wearable device in the first position;

[0022] Figure 3 for Figure 1 A longitudinal sectional view of the wearable device in its first position;

[0023] Figure 4 for Figure 1 A cross-sectional view of the first mating component of the wearable device in the second position;

[0024] Figure 5 for Figure 1 A longitudinal sectional view of the wearable device when the first mating component is in the second position;

[0025] Figure 6 for Figure 1 A front view of the first mating component of the wearable device is shown;

[0026] Figure 7 for Figure 1 A side view of the device securing strap of the wearable device is shown;

[0027] Figure 8 This is a schematic diagram of wearable devices based on related technologies;

[0028] Figure 9 for Figure 4 The force decomposition diagram of the free end of the first mating component is shown.

[0029] Figure 10 This is a partial schematic diagram of another wearable device provided in an embodiment of this application;

[0030] Figure 11 for Figure 10The diagram shows the stress distribution at the free end of the first mating component.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - Main body of the equipment;

[0033] 110 - Receptacle;

[0034] 111 - Inner surface;

[0035] 112 - Inner top surface;

[0036] 120 - Mid-frame;

[0037] 121 - Installation opening;

[0038] 130 - Bottom Cover;

[0039] 131 - Through hole;

[0040] 200 - First mating part;

[0041] 210 - Side end face;

[0042] 220 - Top face;

[0043] 230 - Bottom surface;

[0044] 240-Ontology part;

[0045] 250 - Crossbeam section;

[0046] 260-Through groove;

[0047] 270 - Reinforcing rib;

[0048] 280 - Bottom;

[0049] 290 - Protrusion;

[0050] 300-shrapnel;

[0051] 310 - Fixed end;

[0052] 320-Free End;

[0053] 400 - Equipment fixing strap;

[0054] 500 - Second mating part;

[0055] 510 - Part One;

[0056] 520 - Part Two;

[0057] 530 - Limiting groove;

[0058] 600 - Arc surface;

[0059] 700 - Spring.

[0060] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0061] Figure 1 This is a partial exploded view of a wearable device provided in an embodiment of this application. (Reference) Figure 1 The wearable device may have a first direction A, a second direction B, and a third direction C that intersect each other. Additionally, the wearable device provided in this embodiment may include a device body 100 and a device fixing strap 400. Figure 1 The example shown is a watch. The main body 100 can be the watch face or other display part of the watch, and the device fixing strap 400 can be the watch strap or other binding part of the watch. Of course, the wearable device provided in this embodiment can also be a bracelet, glasses, or other device with two detachable parts. Figure 1 This is just an example and is not intended to be specific.

[0062] In addition, to enable quick installation of the device body 100 and the device fixing strap 400, the wearable device may also include a first mating member 200 disposed on the device body 100 and a second mating member 500 disposed on the device fixing strap 400. That is, the device body 100 and the device fixing strap 400 can be detachably connected via the first mating member 200 and the device fixing strap 400, so as to facilitate the replacement of the device body 100 or the device fixing strap 400.

[0063] refer to Figure 2 The main body of the device 100 may have a receiving cavity 110. (Reference) Figure 1 and Figure 2 The device body 100 may also have a through hole 131. This through hole 131 may be located at one end of the device body 100 in the second direction B and communicate with the receiving cavity 110. A first mating member 200 may pass through the through hole 131 into the receiving cavity 110. At least a portion of the first mating member 200 may slide within the cavity of the through hole 131, allowing the first mating member 200 located in the receiving cavity 110 to move along the axis of the through hole 131 (second direction B) within the receiving cavity 110, thereby enabling the first mating member 200 to have… Figure 2 The first position shown and Figure 4 The second position is shown.

[0064] Continue to refer to Figure 1 The main body of the equipment 100 may have an installation opening 121 on the third-party C. Figure 3 for Figure 1The diagram shows a longitudinal sectional view of the first mating component 200 of the wearable device in its first position. (Reference) Figure 3 The mounting opening 121 communicates with the receiving cavity 110 and allows the second mating member 500, which is mounted on the equipment fixing belt 400, to pass through. In other words, the second mating member 500 can be inserted into the receiving cavity 110 through the mounting opening 121.

[0065] Additionally, the first mating part 200 is located at Figure 2 and Figure 3 In the first position shown, the first mating member 200 and the second mating member 500 are engaged to secure the equipment body 100 to the equipment fixing belt 400. Of course, when the first mating member 200 is in... Figure 4 and Figure 5 In the second position shown, the first mating member 200 and the second mating member 500 disengage, so that the equipment body 100 can be separated from the equipment fixing belt 400.

[0066] Figure 6 for Figure 1 The diagram shows a front view of the first mating component 200 of the wearable device. Figure 7 for Figure 1 The image shows a side view of the device securing strap 400 of the wearable device. See below for reference. Figures 1-7 The following describes the possible engagement methods between the first mating member 200 and the second mating member 500. Optionally, along the positive direction of the second direction B, the first mating member 200 may include a crossbeam portion 250, a body portion 240, and a bottom portion 280 connected in sequence. The body portion 240 may have an opening at one end in the opposite direction of the second direction B. The crossbeam portion 250 may extend along the first direction A and be disposed in the opening of the body portion 240, and may form a through groove 260 through the body portion 240.

[0067] Additionally, the second mating member 500 may include a first portion 510 and a second portion 520. The second portion 520 may extend along a third direction C and may have a first end and a second end in the third direction C. The first end of the second portion 520 may be connected to the device fixing strap 400, and the second end of the second portion 520 may be connected to the first portion 510. The first portion 510 may extend along a second direction B.

[0068] refer to Figure 3When the second mating member 500 engages with the first mating member 200, the second mating member 500 passes through a through groove 260 in the positive direction of the third direction C (the direction indicated by arrow C). The first portion 510 of the second mating member 500 extends out of the through groove 260, and its end face in the opposite direction of the third direction C (the opposite direction indicated by arrow C) abuts against the end face of the crossbeam portion 250 in the positive direction of the third direction C. The second portion 520 of the second mating member 500 abuts against the end face of the crossbeam portion 250 in the opposite direction of the second direction B. In other words, the crossbeam portion 250 is confined within the limiting groove 530 formed by the first portion 510 and the second portion 520 of the second mating member 500. Figure 7 (shown)

[0069] Specifically, to increase the strength of the crossbeam 250 to resist tensile forces along the third direction C, alternatively, refer to... Figure 3 , Figure 5 as well as Figure 6 The end face of the crossbeam portion 250 away from the through groove 260 may be provided with a reinforcing rib 270. The reinforcing rib 270 extends along the first direction A so as to improve the strength of the crossbeam portion 250 by local thickening.

[0070] In order to ensure that the first mating member 200 remains in place when the second mating member 500 is engaged, Figure 2 and Figure 3 The first position shown. Reference Figure 2 and Figure 3 In the first direction A and the third direction C, the first mating part 200 can be confined by the wall of the through hole 131. (See reference) Figures 1-3 The main body 100 of the device may include a middle frame 120 and a bottom cover 130. (Reference) Figure 2 and Figure 3 The bottom cover 130 can be connected to the middle frame 120 in the positive direction of the second direction B (in the direction indicated by arrow B) and can form a receiving cavity 110 with the middle frame 120. The bottom cover 130 may be provided with a through hole 131 communicating with the receiving cavity 110. The through hole 131 may be stepped, with the larger diameter section of the through hole 131 located close to the middle frame 120 and the smaller diameter section of the through hole 131 located away from the middle frame 120.

[0071] Additionally, refer to Figure 2 The bottom 280 of the first mating member 200 can slide within the small-diameter section of the through hole 131, and the position of the first mating member 200 in the first direction A and the third direction C is restricted by the small-diameter section of the through hole 131. The body portion 240 of the first mating member 200 may be provided with a protrusion 290, which can abut against the inner bottom wall of the large-diameter section of the through hole 131 when the first mating member 200 is in the first position, so as to restrict the position of the first mating member 200 in the positive direction of the second direction B when it is in the first position.

[0072] In addition, an elastic element may be provided between the first mating member 200 and the receiving cavity 110. Figure 1 , Figure 2 , Figure 3 as well as Figure 6 The shrapnel 300 shown Figure 8 The spring 700 shown can provide a positive force along the second direction B so that the first mating member 200 is in position. Figure 2 In the first position shown, the protrusion 290 of the first mating member 200 can abut against the inner bottom wall of the large-diameter section of the through hole 131. And when the user pushes the first mating member 200 in the opposite direction of the second direction B (the opposite direction of arrow B), it provides resistance to the movement of the first mating member 200. And when the user pushes the first mating member 200 to... Figure 4 and Figure 5 The second position shown, after release, provides the first mating part 200 with [the following]. Figure 4 The second position shown is restored to Figure 2 The restoring force at the first position is shown.

[0073] refer to Figure 2 It is worth noting that the first mating member 200 has a top surface 220 and a bottom surface 230 that are oppositely disposed in the second direction B, and the first mating member 200 has a side surface 210 in the first direction A. The receiving cavity 110 has an inner top surface 112 in the second direction B, and the receiving cavity 110 has an inner side surface 111 in the second direction B.

[0074] Figure 8 This is a schematic diagram of a wearable device based on related technologies. (Reference) Figure 8 In related technologies, the elastic element is a spring 700, which is disposed between the top surface 220 of the first mating member 200 and the inner top surface 112 of the accommodating cavity 110. The extension and retraction direction of the spring 700 is along the second direction B. To ensure sufficient restoring force, the spring 700 has a relatively long length in the second direction B, which requires the accommodating cavity 110 to have a large space in the second direction B, resulting in a thicker device body 100.

[0075] In order to shorten the space of the accommodating cavity 110 in the second direction B, the wearable device provided in this application embodiment provides a spring piece 300 between the side end face 210 of the first mating member 200 and the inner side face 111 of the accommodating cavity 110. The spring piece 300 can provide a reset dispersing force along the second direction B, so as to make reasonable use of the space of the wearable device in the first direction A and shorten the space of the wearable device in the second direction B.

[0076] Understandably, the first mating member 200 moves relative to the receiving cavity 110. In order to prevent the spring 300 from falling off, the spring 300 can be fixed with the first mating member 200 or the receiving cavity 110. That is, the spring 300 has a fixed end 310 and a free end 320 along the first direction A. One of the side end face 210 of the first mating member 200 and the inner side face 111 of the receiving cavity 110 is fixed with the fixed end 310 of the spring 300, and the other of the side end face 210 of the first mating member 200 and the inner side face 111 of the receiving cavity 110 abuts against the free end 320 of the spring 300.

[0077] Figure 1 , Figure 2 , Figure 3 as well as Figure 6 The example shown is that the fixed end 310 of the spring 300 is fixed to the side end face 210 of the first mating member 200. For example, when the side end face 210 of the first mating member 200 is fixed to the fixed end 310 of the spring 300, at least part of the inner side surface 111 of the receiving cavity 110 abuts against the free end 320 of the spring 300 and is inclined towards the positive direction of the second direction B and the outside of the receiving cavity 110, so as to generate a restoring force along the second direction B.

[0078] Specifically, Figure 9 for Figure 4 A stress-decomposition diagram of the free end 320 of the first mating component 200 is shown. (Reference) Figure 9 At the point where the free end 320 of the spring 300 abuts against the inner surface 111 of the accommodating cavity 110, the spring 300 is subjected to a pressure F0 from the inner surface 111 of the accommodating cavity 110. Since the inner surface 111 of the accommodating cavity 110 is inclined relative to the second direction B, the pressure F0 can be decomposed into a force F1 along the first direction A and a force F2 in the positive direction along the second direction B. The force F2 in the positive direction along the second direction B can cause the spring 300 and the first mating member 200 as a whole to move in the positive direction of the second direction B. In addition, the first mating member 200 may have springs 300 on both sides of the first direction A, and the forces F1 on the two springs 300 along the first direction A are equal in magnitude and opposite in direction.

[0079] Additionally, to facilitate the deformation of the shrapnel 300, refer to... Figure 2 , Figure 4 as well as Figure 6 Optionally, the free end 320 of the spring 300 is located on the side of the fixed end 310 of the spring 300 in the positive direction of the second direction B. That is, the tilt direction of the spring 300 is the same as the tilt direction of the inner surface 111 of at least part of the receiving cavity 110.

[0080] Furthermore, for ease of processing, the spring 300 and the first mating part 200 can be a single piece processed using an integral molding process such as injection molding. In this case, to improve the connection strength between the spring 300 and the first mating part 200, refer to... Figure 6 The connection between the fixed end 310 of the spring piece 300 and the first mating member 200 may have an arc surface 600, the center of which is set in the positive direction of the second direction B. That is to say, the spring piece 300 and the first mating member 200 are smoothly connected by the arc surface 600.

[0081] The above describes Figure 1 , Figure 2 , Figure 3 as well as Figure 6 The spring 300 is shown in a configuration where the fixed end 310 of the spring 300 is fixed to the side end face 210 of the first mating member 200. See below for reference. Figure 10 This describes the situation when the fixed end 310 of the spring 300 is fixed to the inner surface 111 of the accommodating cavity 110.

[0082] Figure 10 This is a partial schematic diagram of another wearable device provided in an embodiment of this application. Figure 10 The left side shows a schematic diagram of the first mating part 200 in the first position. Figure 10 The right side shows a schematic diagram of the first mating part 200 in the second position. (Reference) Figure 10 For example, the fixed end 310 of the spring 300 can be fixed to the inner surface 111 of the receiving cavity 110. At least a portion of the side end face 210 of the first mating member 200 can abut against the free end 320 of the spring 300, and can be inclined toward the positive direction of the second direction B and the outside of the receiving cavity 110, so as to provide the first mating member 200 with a reset force along the second direction B.

[0083] Figure 11 for Figure 10 A stress-decomposition diagram of the free end 320 of the first mating component 200 is shown. (Reference) Figure 11 At the point where the free end 320 of the spring 300 abuts against the side end face 210 of the first mating member 200, the side end face 210 of the first mating member 200 is subjected to a pressure F0 from the spring 300. Since the side end face 210 of the first mating member 200 is inclined relative to the second direction B, the pressure F0 can be decomposed into a force F1 along the first direction A and a positive force F2 along the second direction B. The positive force F2 along the second direction B can cause the first mating member 200 to move in the positive direction of the second direction B. In addition, there may be at least two sets of springs 300, and at least two sets of springs 300 may be arranged on both sides of the first mating member 200 in the first direction A, so that the force F1 along the first direction A on the first mating member 200 can cancel each other out. Each set of springs 300 may have one or more springs 300.

[0084] Additionally, to facilitate the deformation of the shrapnel 300, refer to... Figure 10 Optionally, the free end 320 of the spring 300 is located on the side opposite to the fixed end 310 of the spring 300 in the second direction B, that is, the tilting direction of the spring 300 is the same as the tilting direction of the side end face 210 of at least part of the first mating member 200.

[0085] Furthermore, for ease of processing, the spring 300 and the inner surface 111 (or middle frame 120) of the accommodating cavity 110 can be integral parts processed by a one-piece molding process such as injection molding. In this case, in order to improve the connection strength between the spring 300 and the inner surface 111 of the accommodating cavity 110, the connection between the fixed end 310 of the spring 300 and the inner surface 111 of the accommodating cavity 110 can have an arc surface 600, the center of which is set in the opposite direction of the second direction B. That is to say, the spring 300 and the inner surface 111 of the accommodating cavity 110 are smoothly transitioned through the arc surface 600.

[0086] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0087] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0088] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0089] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wearable device, comprising: include: The main body of the device (100) has a receiving cavity (110), the receiving cavity (110) having an inner surface (111) in a first direction; A first mating member (200) is slidably disposed in the accommodating cavity (110) along a second direction, and the first mating member (200) has a side end face (210) in the first direction. A spring (300) is disposed between the side end face (210) of the first mating member (200) and the inner side face (111) of the receiving cavity (110), and provides a reset disintegration force along the second direction; The equipment fixing strap (400) is provided with a second mating member (500), which is configured to pass through the receiving cavity (110) in a third direction and engage with the first mating member (200); The first direction, the second direction, and the third direction intersect each other; The spring (300) has a fixed end (310) and a free end (320) along the first direction. One of the side end face (210) of the first mating member (200) and the inner side surface (111) of the accommodating cavity (110) is fixed to the fixed end (310) of the spring (300). The other of the side end face (210) of the first mating member (200) and the inner side surface (111) of the accommodating cavity (110) abuts against the free end (320) of the spring (300). One of the side end face (210) of the first mating member (200) that abuts against the free end (320) of the spring (300) and the inner side surface (111) of the accommodating cavity (110) is inclined relative to the second direction, such that the pressure on the spring (300) is decomposed into a force along the first direction and a reset decomposition force along the positive direction of the second direction, and the forces generated by the springs (300) on both sides of the first direction along the first direction are equal in magnitude and opposite in direction; Along the positive direction of the second direction, the first mating member (200) includes a crossbeam portion (250), a body portion (240) and a bottom portion (280) connected in sequence. The body portion (240) has an opening at one end in the opposite direction of the second direction. The crossbeam portion (250) extends along the first direction and is disposed in the opening of the body portion (240), forming a through groove through the first mating member (200) with the body portion (240).

2. The wearable device according to claim 1, characterized in that, When the side end face (210) of the first mating member (200) is fixed to the fixed end (310) of the spring piece (300), at least part of the inner side surface (111) of the accommodating cavity (110) abuts against the free end (320) of the spring piece (300) and is inclined towards the positive direction of the second direction and the outside of the accommodating cavity (110).

3. The wearable device according to claim 2, characterized in that, The free end (320) of the spring (300) is located on the positive side of the fixed end (310) of the spring (300) in the second direction.

4. The wearable device according to claim 2 or 3, characterized in that, The spring (300) and the first mating part (200) are integral parts processed by an integral molding process.

5. The wearable device according to claim 4, characterized in that, The fixed end (310) of the spring (300) has an arc surface (600) at the connection with the first mating part (200), and the center of the arc surface (600) is set in the positive direction of the second direction.

6. The wearable device according to claim 1, characterized in that, When the inner side surface (111) of the accommodating cavity (110) is fixed to the fixed end (310) of the spring piece (300), at least part of the side end face (210) of the first mating member (200) abuts against the free end (320) of the spring piece (300) and is inclined towards the positive direction of the second direction and the outside of the accommodating cavity (110).

7. The wearable device according to claim 6, characterized in that, The free end (320) of the spring (300) is located on the opposite side of the fixed end (310) of the spring (300) in the second direction, and the tilt direction of the spring (300) is the same as the tilt direction of the side end face (210) of at least part of the first mating member (200).

8. The wearable device according to any one of claims 1 to 7, characterized in that, The first mating member (200) includes a body part (240) and a crossbeam part (250). The body part (240) has an opening at one end in the second direction. The crossbeam part (250) extends along the first direction and is disposed in the opening of the body part (240), forming a through groove (260) with the body part (240). The second mating member (500) is configured to pass through the through slot (260) of the first mating member (200) and engage with the crossbeam portion (250).

9. The wearable device according to claim 8, characterized in that, The end face of the beam portion (250) away from the through groove (260) is provided with a reinforcing rib (270), and the reinforcing rib (270) extends along the first direction.

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