Intelligent host and intelligent watch

Abstract

This application provides a smart host and a smartwatch. The smart host includes a support with a snap-fit ​​portion formed at one end; a main shaft and a secondary shaft, coaxially arranged on the snap-fit ​​portion, tending to move away from each other axially; a host body with a slot at one end suitable for mounting the snap-fit ​​portion; two corresponding main slots and secondary slots coaxially formed on opposite inner walls of the slot; and a locking member detachably disposed between the main shaft and the secondary shaft, used to keep the main shaft and secondary shaft relatively fixed after the snap-fit ​​portion is installed in the slot and the main shaft moves in the opposite direction to the secondary shaft to a preset position, so that the main shaft and secondary shaft are coaxially embedded in the corresponding main slots and secondary slots respectively, realizing a coaxial detachable rotatable connection between the support and the host body. The smart host of this application has a simple shaft structure between the host body and the support, is easy to manufacture and assemble, has strong connection stability, is conducive to the long-term reliable operation of the smart host, provides a good user experience, and effectively promotes cost reduction and efficiency improvement.

Description

Technical Field

[0001] This application relates to the field of smart wearable device technology, and further to a smart host and a smartwatch. Background Technology

[0002] In recent years, with the continuous development and innovation of electronic technology, smart wearable devices have become an indispensable part of modern production and life, and are gradually being applied to more diversified scenarios.

[0003] Currently, smart wearable devices on the market, such as smartwatches, generally offer features beyond just telling time, including video calls and taking photos, greatly facilitating users' daily lives. In related technologies, the main unit of a smartwatch is typically rotatably connected to a wrist rest. Flipping the main unit relative to the rest allows for quick changes in the screen's orientation, meeting users' needs for video calls and taking photos. Currently, most industry solutions use a long, coaxial axis running through the connection between the main unit and the rest to achieve this rotatable connection. However, this connection structure is prone to localized wear or deformation due to stress concentration during long-term use, leading to misalignment of the shaft and holes, resulting in poor rotation or abnormal noise from the main unit and a poor user experience. Furthermore, its high installation precision requirements and complex assembly process, which users typically cannot operate themselves, contribute to the high production and usage costs of smartwatches and other smart wearable devices, indicating areas for improvement. Utility Model Content

[0004] The purpose of this application is to provide a smart host and a smartwatch. By simplifying the flip structure of the host body relative to the support, the difficulty of its production and assembly is reduced, while the reliability of its connection is improved and the service life of the corresponding smart host is extended, thereby improving the user experience and promoting cost reduction and efficiency improvement.

[0005] The technical solution provided in this application is as follows:

[0006] On the one hand, this application provides an intelligent host, including:

[0007] The support has a snap-fit ​​part formed at one end;

[0008] The main shaft and the secondary shaft are located at the snap-fit ​​part. They are coaxially arranged and tend to be opposite to each other along the axial direction.

[0009] The main body has a slot at one end for mounting the snap-fit ​​part; the two inner walls opposite to the slot have a main slot and a secondary slot coaxially corresponding to each other.

[0010] A locking element is detachably disposed between the main shaft and the secondary shaft. It is used to keep the main shaft and the secondary shaft relatively fixed after the locking part is installed in the slot and the main shaft moves in the opposite direction to the secondary shaft to a preset position, so that the main shaft is coaxially embedded in the corresponding main slot and the secondary shaft is coaxially embedded in the corresponding secondary slot, thereby realizing the coaxial detachable rotatable connection of the support relative to the main body.

[0011] This application provides an intelligent host that utilizes a rotating shaft assembly composed of a split main shaft and a secondary shaft to allow the host body to rotate relative to a support. This replaces the related technology's approach of directly using a long shaft running through the connection between the host body and the support. On one hand, the shaft hole mating length is shortened, reducing the production precision requirements and lowering the probability of shaft hole misalignment. This significantly reduces the probability of the host body rotating poorly and / or making abnormal noises during rotation, effectively extending the service life of the intelligent host and improving the user experience. On the other hand, during assembly, after the snap-fit ​​part is inserted into the slot, the main shaft is driven to move in the opposite direction relative to the secondary shaft until they are respectively inserted into the corresponding main slot and secondary slot. Then, a locking component is used to keep the main shaft and secondary shaft relatively fixed, thus achieving a stable and detachable rotating connection between the host body and the support. The assembly process of this intelligent host is simple and easy to operate. Users can repair or replace relevant parts themselves as needed, reducing the operating cost of the intelligent host and further improving the user experience. In addition, the intelligent host's flip structure has a simple installation principle, offers various optional production processes, and is low-cost, which is beneficial for enterprises to save energy and reduce costs.

[0012] In some embodiments, the snap-fit ​​portion has a first slot, which is coaxially arranged with the secondary shaft and is opened through the snap-fit ​​portion on the side opposite to the secondary shaft.

[0013] The depth of the first slot is greater than the axial dimension of the spindle;

[0014] The main shaft is coaxially slidably inserted into the first slot and can extend out from the opening of the first slot;

[0015] It also includes a second slot, which is formed on the snap-fit ​​part and located between the main shaft and the secondary shaft; the second slot is connected to the bottom of the first slot;

[0016] The locking member is adapted to abut against one end of the main shaft near the secondary shaft from the second slot, so as to keep the other end of the main shaft stably embedded in the main slot.

[0017] In some embodiments, the spindle includes a shaft end and a sleeve, which are arranged sequentially along the axial direction and rotatably connected coaxially;

[0018] The cross-section of the shaft end is a non-circular cross-section to fit the shape of the main slot.

[0019] The cross-section of the sleeve is non-circular to fit the shape of the first slot.

[0020] The secondary shaft rotates coaxially with the inner wall of the secondary slot.

[0021] This application provides a smart host. During assembly, after the locking part is installed in the slot, the secondary shaft is first fully and coaxially embedded in the secondary slot, achieving a rotatable connection between the locking part at one end of the secondary shaft and the host body. Then, the secondary shaft extends through the second slot to the bottom of the first slot, driving the main shaft to slide away from the secondary shaft along the depth direction of the first slot until the end of the main shaft away from the secondary shaft extends out of the first slot and is fully embedded in the main slot. Finally, a locking member extends from the second slot to the bottom of the first slot, abutting against the end of the main shaft near the secondary shaft, thus achieving a rotatable connection between the locking part at one end of the main shaft and the host body, thereby completing the rotatable connection of the host body relative to the support. When the host body rotates relative to the support, the secondary shaft rotates coaxially relative to the inner wall of the secondary slot, and the shaft end of the main shaft rotates coaxially relative to the sleeve. That is, the shaft end rotates with the host body around the axis relative to the locking part and its inner sleeve, thereby achieving a rapid change in the orientation of the host body's screen.

[0022] Therefore, the overall flipping structure of the main unit relative to the support is simple, convenient to produce and assemble, effectively improving the production efficiency of the corresponding intelligent main unit and promoting cost reduction and efficiency improvement for enterprises.

[0023] In some embodiments, the locking element includes a connecting plate and a support rod, the support rod being disposed on one side of the connecting plate;

[0024] The connecting plate is used to detachably connect to the support and to block the opening of the second slot;

[0025] The support rod is used to abut against the end of the main shaft near the secondary shaft while the connecting plate blocks the opening of the second slot.

[0026] This application provides an intelligent host, in which a support rod is integrated with a connecting plate for sealing the second slot opening. When the connecting plate is installed at the corresponding position of the support, the support rod naturally abuts against the end of the main shaft near the secondary shaft, thereby achieving accurate and stable axial positioning of the main shaft and helping to further improve the assembly efficiency of the corresponding intelligent host.

[0027] In some embodiments, a stepped ring is provided at the end of the main shaft near the secondary shaft;

[0028] The end face of the support rod away from the connecting plate is set as a concave arc surface, and the concave arc surface slides and engages with the outer circular surface of the stepped ring around the secondary shaft axis.

[0029] The present application provides an intelligent host with a circular arc concave surface that slides and engages with the outer circular surface of a stepped ring, so that the support rod simultaneously limits the displacement of the main shaft along the axial direction and supports the main shaft along the radial direction, thereby ensuring the stable and reliable rotation of the host body relative to the support.

[0030] In some embodiments, the secondary shaft is integrally formed on the locking portion and protrudes from the end face of the locking portion opposite to the main shaft.

[0031] This application provides an intelligent host unit. During assembly, a snap-fit ​​part is installed within a slot, ensuring the secondary shaft is coaxial with the slot opening. The snap-fit ​​part is then moved axially towards one side of the slot opening until the secondary shaft slides and engages within the slot, thus achieving a rotatable connection between the snap-fit ​​part at one end of the secondary shaft and the host body. Integrating the secondary shaft and support into a single unit simplifies the structure and further enhances the ease of production for this intelligent host unit.

[0032] In some embodiments, a third slot is also included, which is coaxially arranged with the main shaft and is opened through the snap-fit ​​portion on the side opposite to the main shaft;

[0033] The secondary shaft is coaxially slidably inserted into the third slot and, in its natural state, protrudes from the end face of the locking part away from the main shaft.

[0034] In some embodiments, an elastic element is coaxially provided in the third slot, and the two ends of the elastic element in the extension and retraction direction respectively abut against the bottom of the third slot and the end of the secondary shaft near the main shaft.

[0035] This application provides an intelligent host unit with an elastic element abutting between a secondary shaft and a third slot, enabling the secondary shaft to extend and retract relative to the locking part. In practical applications, initially, the end of the secondary shaft opposite to the main shaft is pressed until it retracts into the third slot, allowing the locking part to be installed in the slot. When the third slot and the secondary slot are coaxial, the pressing force is released, the elastic element returns to its original deformation, and drives the end of the secondary shaft opposite to the main shaft to protrude from the corresponding end face of the locking part, and slide into the secondary slot, thus achieving a rotatable connection between the locking part at one end of the secondary shaft and the host body. Afterwards, the locking part at one end of the main shaft and the host body are reassembled, achieving a detachable rotatable connection between the host body and the support. Therefore, the secondary shaft design is simple, production and assembly are convenient, and it effectively promotes cost reduction and efficiency improvement for enterprises.

[0036] In some embodiments, a groove is also included, which is coaxially formed at one end of the secondary shaft near the main shaft;

[0037] The elastic element is coaxially embedded in the groove.

[0038] This application provides an intelligent host, in which a groove is used to improve the coaxiality of the elastic element relative to the secondary shaft, thereby improving the smoothness of the sliding movement of the secondary shaft relative to the snap-fit ​​part and the assembly process of the secondary shaft relative to the host body.

[0039] On the other hand, this application also provides a smartwatch, including any of the smart hosts described above.

[0040] Compared with existing technologies, the smart host and smartwatch provided in this application have the following advantages:

[0041] By using a split-type main shaft and secondary shaft to form a rotating shaft assembly that allows the main body to rotate relative to the support, this replaces the previous approach of using a single long shaft running through the connection between the main body and the support. On one hand, by shortening the shaft hole fit length, the required production precision is reduced, as is the probability of shaft hole misalignment. This reduces the likelihood of the main body rotating poorly or making abnormal noises during rotation, thus extending the lifespan of the corresponding intelligent host. On the other hand, after the snap-fit ​​part is embedded in the slot, the main shaft is driven to move in opposite directions relative to the secondary shaft until they are respectively embedded in the corresponding main and secondary slots. Locking components then keep the main shaft and secondary shaft relatively fixed, achieving a detachable rotating connection between the main body and the support. The assembly process of the corresponding intelligent host is simple and easy to operate. Users can repair or replace relevant parts themselves as needed, reducing the operating cost of the intelligent host and providing a better user experience. Moreover, due to the simple installation principle and diverse optional production processes of the rotating shaft assembly, the intelligent host is easy to produce and inexpensive, helping enterprises reduce costs and increase efficiency. Attached Figure Description

[0042] The preferred embodiments will now be described in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of this solution.

[0043] Figure 1 This is an isometric schematic diagram of the main embodiment of the smartwatch in this application;

[0044] Figure 2 This is an exploded view illustrating the assembly method of the intelligent host in the embodiments of this application;

[0045] Figure 3 This is an exploded view of the main slot cross-sectional shape, which is the main feature of the embodiments of this application.

[0046] Figure 4 This is an exploded view of the cross-sectional shape of the secondary slot, which is the main feature of the embodiments of this application;

[0047] Figure 5 This is an isometric schematic diagram of the main spindle structure, which is the main embodiment of this application.

[0048] Figure 6This is an isometric schematic diagram of the main structure of the locking component in the embodiments of this application;

[0049] Figure 7 This is a side view of the embodiment of this application, mainly showing the position of the snap-fit ​​part relative to the support;

[0050] Figure 8 yes Figure 7 The sectional view along the AA direction is mainly used to show the location of the first and second slots;

[0051] Figure 9 yes Figure 7 The sectional view along the AA direction is mainly used to show the location of the third slot;

[0052] Figure 10 This is a side view of the embodiment of the smartwatch, which mainly illustrates the overall structure of the smartwatch.

[0053] Figure 11 yes Figure 10 The sectional view along the BB direction is mainly used to illustrate a rotating connection between the support and the main body.

[0054] Figure 12 yes Figure 11 A magnified view of a section at point C, mainly used to illustrate the structural form of the spindle;

[0055] Figure 13 yes Figure 10 The sectional view along the BB direction is mainly used to illustrate another form of rotational connection between the support and the main body.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Support; 11. Snap-fit ​​part; 111. First groove; 112. Second groove; 113. Third groove; 2. Main body; 21. Snap-fit ​​groove; 22. Main groove; 23. Secondary groove; 3. Main shaft; 31. Shaft end; 32. Sleeve; 321. Limiting part; 33. Core rod; 34. Locking element; 4. Secondary shaft; 41. Insert groove; 5. Locking element; 51. Connecting plate; 52. Support rod; 6. Elastic element. Detailed Implementation

[0058] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0059] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0060] In one embodiment, refer to the accompanying drawings of the specification. Figures 1 to 13 A smart host is provided, comprising a support 1 and a host body 2. One end of the support 1 has a snap-fit ​​portion 11, and the host body 2 has a slot 21 corresponding to one end of the snap-fit ​​portion 11 for mounting the snap-fit ​​portion 11. Two coaxially opposite inner walls of the slot 21 have a main slot 22 and a secondary slot 23. A main shaft 3 and a secondary shaft 4 are coaxially mounted on the snap-fit ​​portion 11, and these two shafts tend to move away from each other along the axial direction, so that after the snap-fit ​​portion 11 is mounted in the slot 21, they move in opposite directions along the axial direction on the snap-fit ​​portion 11. The main shaft 3 and the secondary shaft 4 are respectively embedded in the corresponding main slot 22 and secondary slot 23. In addition, a locking member 5 is also included, which is detachably mounted on the support 1 and located between the main shaft 3 and the secondary shaft 4. It is used to keep the main shaft 3 and the secondary shaft 4 relatively fixed after the snap-fit ​​part 11 is installed in the snap-fit ​​groove 21 and the main shaft 3 moves in the opposite direction to the secondary shaft 4 to the preset position (that is, the main shaft 3 is coaxially embedded in the main slot 22 and the secondary shaft 4 is coaxially embedded in the secondary slot 23), thereby realizing the coaxial detachable rotatable connection between the main body 2 and the support 1.

[0061] This application utilizes a main shaft 3 and a secondary shaft 4 to form a rotating shaft assembly for the main body 2 to rotate relative to the support 1. This shortens the length of the shaft hole mating structure of the rotating shaft assembly, thereby reducing the requirements for production and assembly precision, significantly reducing the occurrence of poor rotation of the main body 2 relative to the support 1 and / or abnormal noise during rotation, extending the service life of the corresponding intelligent host, and improving the user experience. Simultaneously, the specific assembly process only requires inserting the snap-fit ​​part 11 into the snap-fit ​​groove 21, driving the main shaft 3 to move in opposite directions relative to the secondary shaft 4 until they are stably embedded in the corresponding main groove 22 and secondary groove 23, and then installing the locking part 5 onto the support 1 to ensure that the main shaft 3 and secondary shaft 4 are axially fixed, thus achieving a coaxial detachable rotating connection between the main body 2 and the support 1. The overall structure of the rotating shaft assembly of the corresponding intelligent host is simple and easy to assemble, and users can repair or replace relevant parts themselves as needed, resulting in a good user experience. This makes the production and use costs of the intelligent host low, which is beneficial for cost reduction and efficiency improvement.

[0062] In one embodiment, based on the above embodiments, specifically referring to... Figure 8 and Figure 11In this embodiment, the secondary shaft 4 is preferably arranged along the rotation axis of the locking portion 11 relative to the smart host, protruding from the corresponding end face of the locking portion 11 and integrally formed with the locking portion 11. For the main shaft 3, refer to... Figure 2 , Figure 4 , Figures 7 to 13 In this embodiment, the snap-fit ​​part 11 is provided with a first slot 111 and a second slot 112. The first slot 111 extends along the rotation axis of the snap-fit ​​part 11 relative to the smart host, and the end opposite to the secondary shaft 4 passes through the snap-fit ​​part 11. The main shaft 3 is coaxially slidably inserted into the first slot 111 and can extend out from the opening of the first slot 111 so that after the snap-fit ​​part 11 is embedded in the slot 21, it is coaxially slidably embedded in the main slot 22. The second slot 112 is opened between the main shaft 3 and the secondary shaft 4, and its bottom is connected to the bottom of the first slot 111. In addition, in this embodiment, the depth dimension of the first slot 111 is greater than the axial dimension of the main shaft 3.

[0063] During assembly, firstly, the snap-fit ​​part 11 is installed in the slot 21, ensuring that the secondary shaft 4 is coaxial with the secondary slot 23. The snap-fit ​​part 11 is then moved along the rotation axis towards the secondary slot 23 until the secondary shaft 4 slides into the secondary slot 23. The secondary shaft 4 rotates around its own axis and engages with the inner wall of the secondary slot 23, thus achieving a rotational connection between the snap-fit ​​part 11 at one end of the secondary shaft 4 and the main body 2. Afterward, it extends through the second slot 112 into the bottom of the first slot 111 and drives... The main spindle 3 is moved to the end near the secondary spindle 4, causing the main spindle 3 to move along its own axis toward the side away from the secondary spindle 4. After the main spindle 3 is fully embedded in the main slot 22, the locking member 5 is installed on the support 1. The locking member 5 extends from the second slot 112 into the bottom of the first slot 111 and abuts against the end of the main spindle 3 near the secondary spindle 4, which can limit the main spindle 3 and the secondary spindle 4 to be relatively stable along the axial direction, and realize the rotational connection of the locking part 11 at one end of the main spindle 3 with the main body 2.

[0064] Preferably, in this embodiment, referring to Figure 8 and Figure 9 The second slot 112 extends along the thickness direction of the support 1, and its opening is located on the side of the support 1 closest to the user's wrist. (See reference...) Figure 6 The locking component 5 includes a connecting plate 51 and a support rod 52. The connecting plate 51 is detachably installed on the support 1 at the opening of the second slot 112 by bolts or other fasteners, and blocks the opening of the second slot 112. The support rod 52 is fixed in the middle of one side of the connecting plate 51 in the thickness direction. In specific assembly, while the connecting plate 51 blocks the second slot 112, the support rod 52 extends into the bottom of the first slot 111 along the second slot 112 and naturally abuts against the end of the main shaft 3 that is axially close to the secondary shaft 4, so as to fix the main shaft 3 relative to the secondary shaft 4 in the axial direction.

[0065] In this embodiment, refer to Figure 5 and Figure 12 The main shaft 3 includes a shaft end 31 and a sleeve 32, which are coaxially arranged by a core rod 33 and rotatably connected around the axis. The small end of the core rod 33 passes through the shaft end 31 and the sleeve 32 sequentially from the end of the shaft end 31 away from the sleeve 32. After extending out of the sleeve 32, the shaft end 31 and the sleeve 32 are coaxially rotatably connected by a locking member 34.

[0066] Furthermore, in this embodiment, the cross-section of the shaft end 31 is adapted to the shape of the main slot 22 and is a non-circular cross-section; for the sleeve 32, a limiting part 321 is formed on the protruding surface of its side wall, and a limiting groove is formed through the inner wall of the first slot 111 along the axial direction corresponding to the limiting part 321. When the main shaft 3 slides relative to the locking part 11 along its own axial direction, the limiting part 321 slides synchronously relative to the inner wall of the limiting groove, that is, the cross-section of the sleeve 32 is also a non-circular cross-section and is adapted to the shape of the first slot 111. In practical applications, when the main body 2 is flipped relative to the support 1, the shaft end 31 of the main shaft 3 rotates coaxially relative to the sleeve 32, and the secondary shaft 4 rotates coaxially relative to the secondary slot 23, thereby realizing the rotation of the main body 2 around the support 1.

[0067] In this embodiment, refer to Figure 12 The locking element 34 is preferably an annular ring and is coaxially fixedly sleeved on the end of the core rod 33 located axially away from the shaft end 31 of the sleeve 32, and forms a stepped ring at the end of the main shaft 3 near the secondary shaft 4. In actual application, the stepped ring moves synchronously with the core rod 33 and the shaft end 31. Correspondingly, in this embodiment, the end face of the support rod 52 away from the connecting plate 51 is a concave arc surface. The concave arc surface slides and engages with the outer circular surface of the stepped ring around the axis of the secondary shaft 4, so as to fix the main shaft 3 axially and support the main shaft 3 radially, and ensure that the main body 2 rotates stably relative to the support 1.

[0068] Of course, in the embodiments of this application, the secondary shaft 4 may also be separately arranged from the snap-fit ​​portion 11. (Refer to...) Figure 9 and Figure 13 In one embodiment, in addition to the first slot 111 and the second slot 112, the snap-fit ​​part 11 is also provided with a third slot 113. The third slot 113 is opened through the snap-fit ​​part 11 on the side away from the main shaft 3 and is coaxially arranged with the main shaft 3. The secondary shaft 4 is coaxially slidably inserted into the third slot 113 and can be retracted into the snap-fit ​​part 11 when the snap-fit ​​part 11 is installed into the slot 21. In its natural state, it protrudes from the end face of the snap-fit ​​part 11 away from the main shaft 3 and is coaxially embedded in the secondary slot 23.

[0069] Preferably, in this embodiment, an elastic element 6 is coaxially provided within the third slot 113, and its two ends in the extension / retraction direction respectively abut against the bottom of the third slot 113 and the end of the secondary shaft 4 near the main shaft 3, thereby realizing the extension / retraction of the secondary shaft 4 on the locking part 11. In this embodiment, the elastic element 6 is preferably a spring. Furthermore, to ensure the coaxiality of the installation of the elastic element 6, a groove 41 is also coaxially provided at the end of the secondary shaft 4 near the main shaft 3, and the elastic element 6 is coaxially installed within the groove 41.

[0070] Of course, based on any of the above embodiments, in one embodiment, a smartwatch may also be provided, which includes the smart host described in any of the above embodiments; in this case, the support 1 is configured as a wrist rest structure.

[0071] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this application. 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 application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A smart host, characterized in that, include: The support has a snap-fit ​​part formed at one end; The main shaft and the secondary shaft are located at the snap-fit ​​part. They are coaxially arranged and tend to be opposite to each other along the axial direction. The main body has a slot at one end for mounting the snap-fit ​​part; the two inner walls opposite to each other of the slot have a main slot and a secondary slot coaxially corresponding to each other. A locking element is detachably disposed between the main shaft and the secondary shaft. It is used to keep the main shaft and the secondary shaft relatively fixed after the locking part is installed in the slot and the main shaft moves in the opposite direction to the secondary shaft to a preset position, so that the main shaft is coaxially embedded in the corresponding main slot and the secondary shaft is coaxially embedded in the corresponding secondary slot, thereby realizing the coaxial detachable rotatable connection of the support relative to the main body.

2. The intelligent host according to claim 1, characterized in that, The snap-fit ​​portion has a first slot, which is coaxially arranged with the secondary shaft and is opened through the snap-fit ​​portion on the side opposite to the secondary shaft. The depth of the first slot is greater than the axial dimension of the spindle; The main shaft is coaxially slidably inserted into the first slot and can extend out from the opening of the first slot; It also includes a second slot, which is formed on the snap-fit ​​part and located between the main shaft and the secondary shaft; the second slot is connected to the bottom of the first slot; The locking member is adapted to abut against one end of the main shaft near the secondary shaft from the second slot, so as to keep the other end of the main shaft stably embedded in the main slot.

3. The intelligent host according to claim 2, characterized in that, The main shaft includes a shaft end and a sleeve, which are arranged sequentially along the axial direction and rotatably connected to each other. The cross-section of the shaft end is a non-circular cross-section to fit the shape of the main slot. The cross-section of the sleeve is non-circular to fit the shape of the first slot. The secondary shaft rotates coaxially with the inner wall of the secondary slot.

4. A smart host according to claim 2 or 3, characterized in that, The locking component includes a connecting plate and a support rod, with the support rod disposed on one side of the connecting plate; The connecting plate is used to detachably connect to the support and to block the opening of the second slot; The support rod is used to abut against the end of the main shaft near the secondary shaft while the connecting plate blocks the opening of the second slot.

5. A smart host according to claim 4, characterized in that, A stepped ring is provided at one end of the main shaft near the secondary shaft; The end face of the support rod away from the connecting plate is set as a concave arc surface, and the concave arc surface slides and engages with the outer circular surface of the stepped ring around the secondary shaft axis.

6. A smart host according to any one of claims 1-3 and 5, characterized in that, The secondary shaft is integrally formed on the snap-fit ​​portion and protrudes from the end face of the snap-fit ​​portion opposite to the main shaft.

7. A smart host according to any one of claims 1-3 and 5, characterized in that, It also includes a third slot, which is coaxially arranged with the main shaft and is opened through the snap-fit ​​part on the side opposite to the main shaft; The secondary shaft is coaxially slidably inserted into the third slot and, in its natural state, protrudes from the end face of the locking part away from the main shaft.

8. A smart host according to claim 7, characterized in that, An elastic element is coaxially provided in the third slot, and the two ends of the elastic element in the extension and retraction direction respectively abut against the bottom of the third slot and the end of the secondary shaft near the main shaft.

9. A smart host according to claim 8, characterized in that, It also includes a groove, which is coaxially formed at one end of the secondary shaft near the main shaft; The elastic element is coaxially embedded in the groove.

10. A smartwatch, characterized in that, Includes the intelligent host described in any one of claims 1-9 above.

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