A flip structure and a wearable device

Abstract

The application relates to the field of wearable devices, and provides a turnover structure and a wearable device. A device main body of the turnover structure is rotatably installed on a base through a rotating shaft assembly; one end of the base is provided with an assembly cavity, the assembly cavity is provided with a first opening, a second opening and a third opening; the rotating shaft assembly comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is adapted to pass into the second opening from the first opening and is fixed in the second opening, so that one end of the first rotating shaft extends out of the second opening and is inserted into one side of the device main body; the second rotating shaft is adapted to enter the assembly cavity from the third opening and is fixed in the first opening, so that one end of the second rotating shaft extends out of the first opening and is inserted into the other side of the device main body. The first rotating shaft and the second rotating shaft of the application jointly realize the rotating function of the device main body relative to the base; the first rotating shaft passes into and is fixed in one end of the base in the axial direction, and the second rotating shaft is inserted into and fixed in the opposite end of the base in the axial direction, so that the assembly and disassembly processes in a narrow space are simplified, and the production efficiency and the maintainability are improved.

Description

Technical Field

[0001] This utility model relates to the field of wearable devices, and further to a flip structure and wearable device. Background Technology

[0002] In today's electronic devices, which increasingly strive for thinness, compactness, and high reliability, the flip-connection structure between the device body and the base has become a key factor affecting the overall form, user experience, and structural stability. Traditional solutions generally employ a single, long, integrated hinge running through both sides of the device body. While this structure is relatively simple in design, several limitations have gradually emerged during actual assembly and use. First, installing a long hinge in a confined and complex internal space requires extremely high precision, resulting in cumbersome and inefficient assembly processes, and is prone to causing rotational obstruction or abnormal noise due to misalignment of the shaft holes. Second, the long hinge structure is susceptible to localized wear or deformation due to stress concentration during repeated flipping, affecting connection reliability and the overall lifespan of the device. Repairs often require disassembling the entire hinge structure, leading to poor maintainability. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a flip structure and wearable device. The first rotating shaft and the second rotating shaft together realize the function of supporting and rotating the main body of the device relative to the base. The first rotating shaft is inserted into and fixed at one end of the base along the axial direction, and the second rotating shaft is inserted into and fixed at the opposite end of the base along the radial direction. This greatly simplifies the assembly and disassembly process in a narrow space and improves production efficiency and maintainability.

[0004] To achieve the above objectives, this utility model provides a flipping structure, including a device body, a base, and a rotating shaft assembly, wherein the device body is rotatably mounted on the base via the rotating shaft assembly;

[0005] The base has an assembly cavity at one end, which axially extends to form a first opening and a second opening, and a third opening is provided on one radial side of the assembly cavity.

[0006] The rotating shaft assembly includes a first rotating shaft and a second rotating shaft. The first rotating shaft is adapted to pass through the first opening and be fixed to the second opening, such that one end of the first rotating shaft extends out of the second opening and is inserted into one side of the device body. The second rotating shaft is adapted to enter the assembly cavity through the third opening and be fixed to the first opening, such that one end of the second rotating shaft extends out of the first opening and is inserted into the other side of the device body.

[0007] In some embodiments, one end of the second shaft is adapted to extend out of the first opening and insert into the other side of the device body, and the other end of the second shaft is adapted to be fixed to the outside of the base.

[0008] In some embodiments, the second rotating shaft includes a first shaft, a second shaft, and a third shaft connected in sequence. The first shaft is adapted to extend axially along the assembly cavity and extend beyond the first opening. The second shaft is adapted to extend radially along the assembly cavity and extend beyond the third opening. The third shaft is adapted to extend axially along the assembly cavity and be fixedly connected to the base.

[0009] In some embodiments, a first fastener is also included, which is adapted to securely connect the third shaft and the base.

[0010] In some embodiments, a locking block is provided on the outer periphery of the first rotating shaft, and a locking groove is provided on the inner side of the assembly cavity. The locking block is disposed in the locking groove, and the first fixing member is adapted to be fixedly connected to the locking block of the first rotating shaft after passing through the third shaft and the base radially along the assembly cavity.

[0011] In some embodiments, a second fastener is also included, which is adapted to abut against the end of the second rotating shaft after passing through the first shaft body of the second rotating shaft axially along the assembly cavity.

[0012] In some embodiments, the end of the first shaft away from the first rotating shaft is further provided with a fixing groove, and the outer end of the second fixing member is adapted to be disposed in the fixing groove.

[0013] In some embodiments, a first limiting block is provided on the outer periphery of the first rotating shaft, and a first limiting groove is provided on the inner sidewall of the assembly cavity, wherein the first limiting block is adapted to be fixed in the first limiting groove.

[0014] In some embodiments, a second limiting block is further provided on the outer periphery of the first shaft, and a second limiting groove is provided on the inner sidewall of the first opening, and the second limiting block is adapted to be fixed in the second limiting groove.

[0015] According to another aspect of this application, a wearable device is further provided, including any one of the flip structure and buckle structure of the above preferred embodiments, wherein one end of the device body is rotatably connected to the base through the flip structure, and the other end of the device body is detachably connected to the other end of the base through the buckle structure.

[0016] Compared with the prior art, the flip structure and wearable device provided by this utility model have at least one of the following beneficial effects:

[0017] 1. The first and second rotating shafts together support and rotate the main body of the equipment relative to the base. The first rotating shaft is inserted into and fixed to one end of the base along the axial direction, and the second rotating shaft is inserted into and fixed to the opposite end of the base along the radial direction. This greatly simplifies the assembly and disassembly process in a confined space and improves production efficiency and maintainability.

[0018] 2. The first shaft, the second shaft, and the third shaft connected in sequence together form a second rotating shaft that is approximately stepped, which facilitates the fixing of the second rotating shaft and the connection of the main body of the equipment.

[0019] 3. The first fixing member is fixedly connected to the third shaft of the second rotating shaft, and is also fixedly connected to the locking block of the first rotating shaft, so that the first fixing member connects the first rotating shaft and the second rotating shaft at the same time, which not only greatly simplifies the structure, but also reduces the number of fasteners and assembly steps.

[0020] 4. By axially clamping the end of the second shaft with the second fastener, a huge static friction force can be generated, which effectively prevents the second shaft from accidentally moving axially or rotating radially in its installation position due to frequent flipping or vibration during use, greatly enhancing the rigidity, stability and reliability of the connection.

[0021] 5. The second limiting block is suitable for embedding and fixing in the second limiting groove, which significantly increases the effective contact area between the first shaft and the inner wall of the first opening, optimizes the force distribution, improves the structural strength, enhances radial stability, and suppresses shaking. Attached Figure Description

[0022] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0023] Figure 1 This is a cross-sectional view of the flipped structure;

[0024] Figure 2 This is a cross-sectional view of the base;

[0025] Figure 3 This is a structural diagram of the first rotating shaft;

[0026] Figure 4 This is a cross-sectional view of the flipping structure in another embodiment;

[0027] Figure 5 This is a structural diagram of the first rotating shaft in another embodiment;

[0028] Figure 6 This is a structural diagram of a wearable device.

[0029] Explanation of icon numbers:

[0030] Base 1, assembly cavity 10, locking groove 101, first limiting groove 102, second limiting groove 103, first opening 11, second opening 12, third opening 13, equipment body 2, rotating shaft assembly 3, first rotating shaft 31, locking block 311, first limiting block 312, second rotating shaft 32, first shaft body 321, fixing groove 3211, second limiting block 3212, second shaft body 322, third shaft body 323, first fixing member 4, second fixing member 5, snap-fit ​​structure 6. Detailed Implementation

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0032] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0033] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0036] refer to Figures 1 to 3 This utility model provides a flipping structure, including a device body 2, a base 1, and a rotating shaft assembly 3. The device body 2 is rotatably mounted on the base 1 via the rotating shaft assembly 3. One end of the base 1 is provided with an assembly cavity 10, which axially extends to form a first opening 11 and a second opening 12. A third opening 13 is provided on one radial side of the assembly cavity 10. The rotating shaft assembly 3 includes a first rotating shaft 31 and a second rotating shaft 32. The first rotating shaft 31 is adapted to pass through the first opening 11 and be fixed to the second opening 12, such that one end of the first rotating shaft 31 extends out of the second opening 12 and is inserted into one side of the device body 2. The second rotating shaft 32 is adapted to enter the assembly cavity 10 through the third opening 13 and be fixed to the first opening 11, such that one end of the second rotating shaft 32 extends out of the first opening 11 and is inserted into the other side of the device body 2.

[0037] In this embodiment, the first rotating shaft 31 and the second rotating shaft 32 together realize the function of supporting and rotating the main body 2 of the equipment relative to the base 1. The first rotating shaft 31 is inserted into and fixed to one end of the axial direction of the base 1 along the axial direction, and the second rotating shaft 32 is inserted into and fixed to the opposite end of the axial direction of the base 1 along the radial direction. This greatly simplifies the assembly and disassembly process in a narrow space and improves production efficiency and maintainability.

[0038] Specifically, the main body 2 is rotatably mounted on the base 1 via a rotating shaft assembly 3, allowing for flipping and opening. One end of the base 1 has a dedicated assembly cavity 10 for accommodating the rotating shaft assembly 3. This assembly cavity 10 extends axially, forming a first opening 11 and a second opening 12 at both ends of the base 1. Furthermore, a third opening 13 is formed on the radial side of the assembly cavity 10. The third opening 13 is preferably located at the bottom of the base 1. The rotating shaft assembly 3 has a split structure, including a first rotating shaft 31 and a second rotating shaft 32. The first rotating shaft 31 passes axially through the first opening 11 of the base 1 along the assembly cavity 10 and is finally fixed at the second opening 12. After installation, one end of the first rotating shaft 31 extends outward from the second opening 12 and is inserted into a shaft hole on the corresponding side of the main body 2, forming a rotational support. The installation method of the second rotating shaft 32 differs from that of the first rotating shaft 31; it is inserted radially into the assembly cavity 10 from the third opening 13 on the radial side and is finally fixed at the position of the first opening 11. After installation, one end of the second rotating shaft 32 extends outward from the first opening 11 and is inserted into the shaft hole on the other side of the equipment body 2, thereby cooperating with the first rotating shaft 31 to achieve smooth and reliable rotation of the equipment body 2. At this time, one end of the second rotating shaft 32 is adapted to extend out of the first opening 11 and be inserted into the other side of the equipment body 2, while the other end of the second rotating shaft 32 is adapted to be fixed to the outside of the base 1. One end of the second rotating shaft 32 is configured to extend out of the first opening 11 and be inserted into the other side of the equipment body 2, so as to jointly bear the weight of the equipment body 2 and achieve synchronous rotation; on the other hand, the other end of the second rotating shaft 32 is firmly fixed to the outer structure of the base 1 by fasteners, thereby ensuring that the second rotating shaft 32 cannot move radially, providing stable torsional support for the entire flipping structure. This "one-sided fixed, one-sided cantilever support" installation method is the key to realizing split-shaft installation and avoiding the defects of traditional long shafts.

[0039] This split-end installation method completely avoids the stringent requirements for the alignment accuracy of a long, continuous shaft within the confined space of the equipment, greatly freeing up the design freedom of the overall internal layout. Secondly, in terms of production assembly and maintenance efficiency, this structure breaks down the complex axial assembly process into two simple, independent operating steps, requiring less operating space and reducing reliance on production tooling and skills, significantly improving assembly efficiency. During after-sales maintenance, individual shafts can be independently disassembled and replaced without extensive disassembly of the entire machine, resulting in low maintenance costs, high convenience, and effectively improved product maintainability. Finally, regarding reliability and lifespan, the dual shafts share the support and rotational forces, improving stress distribution and reducing the torsional deformation and wear problems that may exist with a single long shaft. This helps improve the stability and smoothness of the flipping process and extends the service life of the connection structure.

[0040] It is worth noting that, reference Figure 2 and Figure 3A first limiting block 312 is provided on the outer periphery of the first rotating shaft 31, and a first limiting groove 102 is provided on the inner side wall of the assembly cavity 10. The first limiting block 312 is adapted to be fixed in the first limiting groove 102. The first limiting block 312 and the first limiting groove 102 can restrict the axial movement and rotation of the first rotating shaft 31. Specifically, through the concave-convex fit structure of the first limiting block 312 and the second limiting groove 103, two degrees of freedom of the first rotating shaft 31 can be constrained at the same time: First, in the axial direction of the assembly cavity 10, this fit effectively prevents the first rotating shaft 31 from undergoing unnecessary axial movement, ensuring the stability of its axial position; Second, in the circumferential direction of the assembly cavity 10, this fit structure restricts the first rotating shaft 31 from rotating or idling relative to the base 1, so that it can only rotate synchronously with the main body 2 of the equipment, thereby ensuring the reliability of power transmission and the consistency of the flipping action.

[0041] Further, refer to Figure 1 The second rotating shaft 32 includes a first shaft 321, a second shaft 322 and a third shaft 323 connected in sequence. The first shaft 321 is adapted to extend axially along the assembly cavity 10 and extend out of the first opening 11. The second shaft 322 is adapted to extend radially along the assembly cavity 10 and extend out of the third opening 13. The third shaft 323 is adapted to extend axially along the assembly cavity 10 and be fixedly connected to the base 1.

[0042] In this embodiment, the first shaft 321, the second shaft 322 and the third shaft 323 connected in sequence together form an approximately stepped second rotating shaft 32, which facilitates the fixing of the second rotating shaft 32 and the connection of the device body 2.

[0043] Specifically, the first shaft 321 starts from the connection point, extends axially along the assembly cavity 10, and finally extends forward beyond the first opening 11 of the base 1. This extended end is configured to insert into a shaft hole on the other side of the device body 2 to provide rotational support for the core. The second shaft 322 connects the first shaft 321 and the third shaft 323, and extends radially (i.e., perpendicular to the axial direction) along the assembly cavity 10, while extending outward beyond the third opening 13 of the base 1. The second shaft 322 realizes the transition from inside to outside the cavity and transmits torque from the inside to the outside. The third shaft 323 is connected to the second shaft 322 and again extends axially along the assembly cavity 10 (but may be in the same or opposite direction as the first shaft 321). The third shaft 323 is a fixed section, and its outer surface is connected to the base 1 by fastening or fitting. A first fastener 4 is also included, which is adapted to fix the third shaft 323 and the base 1. The first fastener 4 includes, but is not limited to, screws and bolts, which are not further limited herein.

[0044] It is worth noting that the second rotating shaft 32 is formed by connecting the first shaft 321, the second shaft 322, and the third shaft 323 in sequence to form an approximately stepped shape. One end of the second shaft 322 abuts against the inner wall of the third opening 13 to achieve preliminary axial positioning and support. The other end of the second shaft 322 is left with a certain distance from the inner wall of the third opening 13. That is, the end of the first shaft 321 away from the first opening 11 and the end of the second shaft 322 away from the second opening 12 are hollowed out, which reduces weight and leaves space for installation and maintenance, thereby improving the installation convenience, reliability, and service life of the rotating shaft assembly 3.

[0045] Preferably, a locking block 311 is provided on the outer periphery of the first rotating shaft 31, and a locking groove 101 is provided on the inner side of the assembly cavity 10. The locking block 311 is disposed in the locking groove 101. The first fixing member 4 is adapted to be fixedly connected to the locking block 311 of the first rotating shaft 31 after passing through the third shaft body 323 and the base 1 radially along the assembly cavity 10.

[0046] In this embodiment, the first fixing member 4 is fixedly connected to the third shaft body 323 of the second rotating shaft 32, while still being fixedly connected to the locking block 311 of the first rotating shaft 31. This allows the first fixing member 4 to connect both the first rotating shaft 31 and the second rotating shaft 32, which not only greatly simplifies the structure but also reduces the number of fasteners and assembly steps.

[0047] Specifically, the installation path of the first fixing member 4 passes through the third shaft body 323 of the second rotating shaft 32 and the side wall of the base 1 in sequence, and finally screws into or fastens into the locking block 311 of the first rotating shaft 31. When the first fixing member 4 is tightened, it not only tightly pulls and presses the third shaft body 323 of the second rotating shaft 32 onto the base 1, but also applies a radial tension force to the first rotating shaft 31 through the locking block 311, further stabilizing it in the predetermined position within the assembly cavity 10; it also achieves the linkage and interlocking of the first rotating shaft 31 and the second rotating shaft 32 on the base 1 through the same fastener.

[0048] Specifically, the coordinated fixing method of the first rotating shaft 31 and the second rotating shaft 32 is fundamentally different from the existing technology where only an independent fastener is set for each rotating shaft. This application uses a first fixing member 4 as a common connection medium, so that the fixing state of the first rotating shaft 31 and the second rotating shaft 32 has a mechanical correlation and dependence. This linkage structure not only greatly simplifies the structure and reduces the number of fasteners and assembly steps, but more importantly, it improves the alignment accuracy between the first rotating shaft 31 and the second rotating shaft 32 and the rigidity and stability of the overall structure, avoiding the cumulative error and uneven stress problems that may be caused by multiple independent fasteners, thereby ensuring the long-term stability and reliability of the flipping action.

[0049] It is worth noting that the first fixing member 4 cleverly locks both the first rotating shaft 31 and the second rotating shaft 32 simultaneously, reducing the number of fasteners, improving the rigidity and stability of the structure, avoiding the problems of cumulative errors and uneven stress, and ensuring the long-term smoothness and reliability of the flipping action. The locking block 311 and the limiting block in the above embodiment can be the same component or two separate components; this application does not make further limitations here.

[0050] In a modified embodiment, reference Figure 4 and Figure 5 It also includes a second fixing member 5, which is adapted to pass through the first shaft body 321 of the second rotating shaft 32 along the axial direction of the assembly cavity 10 and then abut against the end of the second rotating shaft 32.

[0051] In this embodiment, by axially pressing the end of the second rotating shaft 32 with the second fixing member 5, a huge static friction force can be generated, which effectively prevents the second rotating shaft 32 from accidentally moving axially or rotating radially in its installation position due to frequent flipping or vibration during use, and greatly enhances the rigidity, stability and reliability of the connection.

[0052] Specifically, the second fixing member 5 is disposed at the end of the first shaft 321, and its installation direction is parallel to the axial direction of the assembly cavity 10. The second fixing member 5 is adapted to pass through the assembly cavity 10 axially and be screwed into the end of the first shaft 321 or into a pre-set threaded hole at its end, until the tip of the second fixing member 5 forms a tight abutment and compression with a specific bearing surface (or threaded hole) at the end of the second rotating shaft 32 itself. As a simple additional part, the second fixing member 5 effectively constrains the degree of freedom of the second rotating shaft 32 through its axial clamping action, which is a key guarantee for improving the overall rigidity and motion accuracy of the flipping structure.

[0053] Preferably, the end of the first shaft 321 away from the first rotating shaft 31 is also provided with a fixing groove 3211, and the outer end of the second fixing member 5 is adapted to be disposed in the fixing groove 3211. The second fixing member 5 adopts an axially built-in installation method, which makes full use of the space at the end of the rotating shaft and does not require additional installation space, which is very much in line with the compact design requirements of electronic products. At the same time, this assembly method is also convenient for debugging and maintenance in the production and after-sales stages, and the operation is simple and easy.

[0054] It is worth noting that by controlling the screw-in depth of the second fastener 5, minute axial clearances that may occur during parts manufacturing and assembly can be precisely compensated, ensuring that the shaft assembly 3 is in optimal tension. This avoids shaking or abnormal noise caused by clearances, improving product quality and lifespan. Furthermore, the second fastener 5 possesses a certain degree of elastic deformation capability to adapt to possible minor vibrations or movements, thereby preventing shaking or abnormal noise caused by clearances and further improving product quality and lifespan.

[0055] Further, refer to Figure 1 The outer periphery of the first shaft 321 is also provided with a second limiting block 3212, and the inner side wall of the first opening 11 is provided with a second limiting groove 103. The second limiting block 3212 is suitable for being fixed in the second limiting groove 103.

[0056] In this embodiment, the second limiting block 3212 is adapted to be embedded and fixed in the second limiting groove 103, which significantly increases the effective contact area between the first shaft 321 and the inner sidewall of the first opening 11, optimizes the force distribution, improves the structural strength, enhances radial stability, and suppresses shaking.

[0057] Specifically, the cooperation between the second limiting block 3212 and the second limiting groove 103 plays a role in auxiliary positioning and error prevention. During axial insertion, it guides the first shaft 321 to a precise preset position, ensuring its coaxiality with the second rotating shaft 32, thereby improving the consistency and reliability of assembly. Moreover, the larger contact area means that the radial force and torsional torque borne by the first shaft 321 can be more evenly distributed and transmitted to the base 1 housing, avoiding stress concentration at a local point. This effectively enhances the overall structural strength and load-bearing capacity of this key pivot connection, reducing the risk of deformation or wear under long-term use. At the same time, the increased contact surface provides stronger radial support and constraint for the first shaft 321, effectively suppressing minor shaking and abnormal noises that may occur during the rotation of the main body 2, ensuring a smooth, stable, and precise rotation process, and improving the product's quality and user experience.

[0058] Further, refer to Figure 6 This application provides a wearable device, including the flip structure and buckle structure 6 in any of the above embodiments. One end of the device body 2 is rotatably connected to the base 1 through the flip structure, and the other end of the device body 2 is detachably connected to the other end of the base 1 through the buckle structure 6.

[0059] Specifically, one end of the device body 2 is rotatably connected to one end of the base 1 via a flip structure. This flip structure not only provides a stable and smooth axis of rotation for the device body 2, allowing it to open and close at large angles relative to the base 1 to accommodate different usage postures (such as wearing, viewing, charging, etc.), but also provides the main support function. Correspondingly, at the other end of the device body 2, a detachable and secure connection is formed with the other end of the base 1 via a snap-fit ​​structure 6. When the device body 2 is closed, the snap-fit ​​structure 6 provides a strong locking force, ensuring that the device will not accidentally come loose during movement or daily use, guaranteeing the stability and safety of wearing; when it needs to be opened, the user can easily disengage the connection using specific operations (such as pressing a button, applying a specific force, etc.), making operation convenient. The specific form of the snap-fit ​​structure 6 includes, but is not limited to, magnetic clasps, mechanical hooks, button release mechanisms, etc.

[0060] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A flipping structure, characterized in that, It includes a main body, a base, and a rotating shaft assembly, wherein the main body is rotatably mounted on the base via the rotating shaft assembly; The base has an assembly cavity at one end, which axially extends to form a first opening and a second opening, and a third opening is provided on one radial side of the assembly cavity. The rotating shaft assembly includes a first rotating shaft and a second rotating shaft. The first rotating shaft is adapted to pass through the first opening and be fixed to the second opening, such that one end of the first rotating shaft extends out of the second opening and is inserted into one side of the device body. The second rotating shaft is adapted to enter the assembly cavity through the third opening and be fixed to the first opening, such that one end of the second rotating shaft extends out of the first opening and is inserted into the other side of the device body.

2. The flipping structure according to claim 1, characterized in that, One end of the second rotating shaft is adapted to extend out of the first opening and be inserted into the other side of the device body, and the other end of the second rotating shaft is adapted to be fixed to the outside of the base.

3. The flipping structure according to claim 2, characterized in that, The second rotating shaft includes a first shaft, a second shaft, and a third shaft connected in sequence. The first shaft is adapted to extend axially along the assembly cavity and extend out of the first opening. The second shaft is adapted to extend radially along the assembly cavity and extend out of the third opening. The third shaft is adapted to extend axially along the assembly cavity and be fixedly connected to the base.

4. The flipping structure according to claim 3, characterized in that, It also includes a first fastener adapted to securely connect the third shaft and the base.

5. The flipping structure according to claim 4, characterized in that, The first rotating shaft is also provided with a locking block on its outer periphery, and the inner side of the assembly cavity is also provided with a locking groove. The locking block is disposed in the locking groove. The first fixing member is adapted to be fixedly connected to the locking block of the first rotating shaft after passing through the third shaft and the base radially along the assembly cavity.

6. A flipping structure according to claim 4, characterized in that, It also includes a second fixing member, which is adapted to abut against the end of the second rotating shaft after passing through the first shaft body of the second rotating shaft along the axial direction of the assembly cavity.

7. A flipping structure according to claim 6, characterized in that, The first shaft body is provided with a fixing groove at one end away from the first rotating shaft, and the outer end of the second fixing member is adapted to be disposed in the fixing groove.

8. The flipping structure according to claim 1, characterized in that, The first rotating shaft has a first limiting block on its outer periphery, and the assembly cavity has a first limiting groove on its inner sidewall. The first limiting block is adapted to be fixed in the first limiting groove.

9. A flipping structure according to claim 1, characterized in that, The outer periphery of the first shaft is also provided with a second limiting block, and the inner sidewall of the first opening is provided with a second limiting groove. The second limiting block is adapted to be fixed in the second limiting groove.

10. A wearable device, characterized in that, Includes the flipping structure and snap-fit ​​structure as described in any one of claims 1-9, wherein one end of the device body is rotatably connected to the base via the flipping structure, and the other end of the device body is detachably connected to the other end of the base via the snap-fit ​​structure.

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