A concealed rotary connection structure and application

Abstract

The application belongs to the technical field of connecting members, and particularly relates to a hidden rotary connecting structure, which comprises flush arranged first and second housings; a first trigger mechanism, a power mechanism, a locking mechanism and an unlocking mechanism are arranged in the first housing, wherein an operation end of the unlocking mechanism is exposed to the first housing; a second trigger mechanism is arranged in the second housing; when the first and second housings are close to each other, the second trigger mechanism cooperates with the first trigger mechanism to trigger the power mechanism to drive the locking mechanism to move at least partially into the second housing, so that the first and second housings are locked; the unlocking mechanism is used to drive the locking mechanism to reset, so that the first and second housings are unlocked. The connecting structure is used to realize the quick connection or locking between two components by using the plug-in type half circular ring lock catch and the internal elastic mechanism.

Description

Technical Field

[0001] This invention belongs to the field of connecting component technology, and in particular relates to a concealed rotary connection structure and its application. Background Technology

[0002] Connectors are general-purpose components used to mechanically fix or electrically / signally transmit two or more parts, and are widely used in construction, electronics, industrial equipment, and other fields. Existing connectors offer various connection methods, including stacking, magnetic, contact, and pin connections. However, each of these methods has its own drawbacks, as follows: Traditional stacking connection structures involve cumbersome steps (such as alignment, rotation, and snap-fit), making it impossible to achieve "foolproof" one-click docking. Traditional magnetic connections rely solely on magnetic attraction, which poses risks of slippage and accidental detachment, resulting in insufficient reliability. Traditional contact or pin-type charging connections suffer from poor contact and misalignment, leading to low charging efficiency or short circuit risks. Furthermore, exposed charging ports or protruding connection structures negatively impact the overall appearance and aesthetics of the product. Existing quick-release connection structures have limited functionality and cannot simultaneously meet the multiple requirements of mechanical fastening, power transmission, and product aesthetics.

[0003] Therefore, there is an urgent need to design a concealed rotary connection structure and its application to overcome the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a hidden rotary connection structure and its application, which can achieve magnetic attraction and automatic locking when the male and female shells are close together, thereby realizing the hiding of the lock and "foolproof" one-click docking, solving the problems of insufficient reliability, misalignment, single function and uneven appearance that exist in various connection structures in the prior art.

[0005] Therefore, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention proposes a concealed rotary connection structure, comprising a first outer shell and a second outer shell disposed flush with each other; a first triggering mechanism, a power mechanism, a locking mechanism and an unlocking mechanism are provided inside the first outer shell, wherein the operating end of the unlocking mechanism is exposed outside the first outer shell; a second triggering mechanism is provided inside the second outer shell; When the first housing and the second housing are close together, the second triggering mechanism cooperates with the first triggering mechanism to trigger the power mechanism to drive the locking mechanism to move at least partially into the second housing, thereby locking the first housing and the second housing. The unlocking mechanism is used to drive the locking mechanism to reset in order to unlock the first and second outer shells.

[0006] Furthermore, the first triggering mechanism includes a fixed base disposed within the first housing, the fixed base being disposed close to the second housing, a trigger slider being slidably disposed within the fixed base, and a trigger protrusion for triggering the power mechanism being fixed on the trigger slider; A trigger magnet is connected to the bottom of the trigger slider; The second triggering mechanism is fixed inside the second housing on the side near the first housing, and the second triggering mechanism and the triggering magnet are magnetically attracted to each other.

[0007] Furthermore, a reset spring is provided between the trigger slider and the fixed base.

[0008] Furthermore, the second triggering mechanism uses a fixed magnet.

[0009] Furthermore, the locking mechanism includes an active ring pivotally disposed within the first housing, the end face of which is flush with the first housing. An elastic locking pin that cooperates with the first triggering mechanism is disposed on the active ring. The power output end of the power mechanism is connected to the rotation shaft of the active ring to drive the active ring to move at least partially into the second housing.

[0010] Furthermore, the power mechanism employs a pop-out torsion spring in a stored state, which is installed inside the first housing to drive the locking mechanism to move at least partially into the second housing.

[0011] Furthermore, the locking mechanism also includes a passive ring pivotally mounted in the second housing. The end face of the passive ring is flush with the second housing. The passive ring and the active ring are positioned opposite each other. The active ring can drive the passive ring to rotate under the drive of the power mechanism, so as to drive the passive ring to move at least partially into the first housing.

[0012] Furthermore, a reset torsion spring for driving the passive ring to reset is also installed inside the second housing.

[0013] Furthermore, the unlocking mechanism includes an unlocking switch, an unlocking slider, and a driving pin. The unlocking switch is located on the outer surface of the first housing, and the unlocking slider and the driving pin are located inside the first housing. The unlocking switch and the unlocking slider are connected, and the driving pin is fixed on the locking mechanism and contacts the unlocking slider. When the unlocking slider slides, it can drive the locking mechanism to reset through the driving pin.

[0014] Furthermore, a mounting groove is provided on the first housing, the unlocking switch is installed in the mounting groove, and anti-slip protrusions are provided on the outer surface of the unlocking switch.

[0015] Secondly, the present invention also proposes the application of the concealed rotary connection structure as described in the first aspect in the fields of packaging and storage, 3C product charging, and locks to realize the connection or locking between two components.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The connection structure described in this invention, through a trigger slider, trigger magnet, unlocking switch, unlocking slider, fixing magnet, pop-out torsion spring, elastic pin, reset torsion spring, active ring buckle, and passive ring buckle, forms a connection structure with a plug-in semi-circular ring lock and an internal elastic mechanism. When the male and female shells are close together, they achieve magnetic adhesion and automatic locking, thus realizing the lock's concealment and "foolproof" one-click docking. This solves the problems of insufficient reliability, misalignment, single function, and uneven appearance that exist in various connection structures in traditional technologies. It can be adapted to scenarios that require quick disassembly, locking, or power supply interfaces, such as power banks, storage boxes, packaging boxes, 3C product charging, storage cabinets, and locks. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram from one perspective of the present invention; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is the front view of the present invention; Figure 4 for Figure 3 AA section view; Figure 5 This is the left view of the present invention; Figure 6 for Figure 5 BB cross-sectional view; Figure 7 This is a top view of the present invention; Figure 8 This is a schematic diagram from one perspective after removing the first and second outer shells of the present invention; Figure 9 This is a schematic diagram from another perspective after the first and second outer shells of the present invention have been removed; Figure 10 This is a front view of the present invention after removing the first and second outer shells; Figure 11 for Figure 10 The right view.

[0018] The components in the diagram are named as follows: 1. First housing; 2. Second housing; 3. Fixed base; 4. Trigger slider; 5. Trigger protrusion; 6. Trigger magnet; 7. Return spring; 8. Fixed magnet; 9. Active ring; 10. Elastic pin; 11. Pop-out torsion spring; 12. Passive ring; 13. Return torsion spring; 14. Unlock switch; 15. Unlock slider; 16. Drive pin; 17. Mounting slot. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0020] Example 1:

[0021] like Figures 1-11 As shown, this embodiment proposes a concealed rotary connection structure, including a first outer shell 1 and a second outer shell 2 that are flush with each other; a first triggering mechanism, a power mechanism, a locking mechanism and an unlocking mechanism are provided in the first outer shell 1, wherein the operating end of the unlocking mechanism is exposed in the first outer shell 1; a second triggering mechanism is provided in the second outer shell 2; When the first outer shell 1 and the second outer shell 2 are close together, the second triggering mechanism cooperates with the first triggering mechanism to trigger the power mechanism to drive the locking mechanism to move at least partially into the second outer shell 2, thereby locking the first outer shell 1 and the second outer shell 2. The unlocking mechanism is used to drive the locking mechanism to reset in order to unlock the first outer shell 1 and the second outer shell 2.

[0022] Based on the above structural description, when the first outer shell 1 and the second outer shell 2 approach each other, the second triggering mechanism cooperates with the first triggering mechanism to trigger the power mechanism to output power, thereby driving the locking mechanism to move at least partially into the second outer shell 2, thus achieving a locking connection between the first outer shell 1 and the second outer shell 2. Simultaneously, since the first outer shell 1 and the second outer shell 2 are flush, the above process achieves a hidden locking connection between the first outer shell 1 and the second outer shell 2, effectively solving the defects of existing technologies such as insufficient reliability of magnetic connection structures, misalignment of contact or pin-type connection structures, and uneven appearance affecting aesthetics. When unlocking is required, the unlocking mechanism drives the locking mechanism, power mechanism, and first triggering mechanism to reset, allowing the first outer shell 1 and the second outer shell 2 to unlock and freely separate.

[0023] See appendix Figure 4 Appendix Figure 6 Appendix Figure 8 -Appendix Figure 11The first triggering mechanism includes a fixed base 3 fixedly disposed inside the first housing 1, the fixed base 3 being disposed near the second housing 2, specifically disposed on the inner wall of the first housing 1 on the side near the second housing 2. A trigger slider 4 is slidably disposed inside the fixed base 3, the trigger slider 4 being able to slide freely towards the second housing 2. A trigger protrusion 5 for triggering the power mechanism is fixed on the trigger slider 4. A trigger magnet 6 is connected to the bottom of the trigger slider 4. When the trigger slider 4 slides towards the second housing 2, it can drive the trigger protrusion 5 and the trigger magnet 6 to slide together. The second triggering mechanism is fixed inside the second housing 2 on the side near the first housing 1, and the second triggering mechanism and the trigger magnet 6 are magnetically attracted to each other.

[0024] In specific implementation, the fixed base 4 has upper and lower through slots, and the trigger slider 4 and trigger magnet 6 are slidably installed in the through slots. Therefore, based on the specific structure of the first trigger mechanism, when the first outer shell 1 and the second outer shell 2 approach each other, due to the magnetic attraction between the second trigger mechanism and the trigger magnet 6, the second trigger mechanism will attract the trigger slider 4 to slide towards the second outer shell 2, and simultaneously drive the trigger protrusion 5 and the trigger magnet 6 to slide towards the second outer shell 2. At this time, the trigger protrusion 5 will send a trigger signal to the power mechanism to output power, so as to drive the locking mechanism to move at least partially into the second outer shell 2, thereby realizing the locking connection between the first outer shell 1 and the second outer shell 2. It can be seen that this embodiment achieves "foolproof" one-click docking when the first outer shell 1 and the second outer shell 2 approach each other through the above-mentioned magnetic triggering method, so that the connection structure described in this application can achieve the advantage of automatic connection and locking without manual operation. When unlocking is required, the unlocking mechanism drives the first trigger mechanism and the second trigger mechanism to release the magnetic attraction and reset the first trigger mechanism.

[0025] In this embodiment, a reset spring 7 is provided between the trigger slider 4 and the fixed base 3, and the second triggering mechanism adopts a fixed magnet 8. Of course, the reset of the trigger slider 4 can also adopt other springs or other reset structures, and the trigger magnet 6 and the fixed magnet 8 can also be permanent magnets or electromagnets; this example does not impose specific limitations.

[0026] Based on the above structural description, this embodiment uses a fixed magnet 8 and a sliding trigger magnet 6 to form the trigger mechanism of this connection structure. When the first outer shell 1 and the second outer shell 2 approach each other, the fixed magnet 8 and the trigger magnet 7 are magnetically attracted. At this time, the trigger magnet 6, under the action of the magnetic force, drives the trigger slider 4 to slide towards the second outer shell 2, thereby triggering the protrusion 5 to control the power mechanism to output power, driving the locking mechanism part to move into the second outer shell 2, thus achieving a locking connection between the first outer shell 1 and the second outer shell 2. After unlocking, when the first outer shell 1 and the second outer shell 2 move away from each other, the trigger slider 4 returns to its original position under the elastic restoring force of the return spring 7. During this process, the trigger protrusion 5 also returns to its original position, so that the power mechanism can be triggered to control the next time the first outer shell 1 and the second outer shell 2 approach each other.

[0027] See appendix Figure 4 Appendix Figure 6 Appendix Figure 8 -Appendix Figure 11 The locking mechanism includes an active ring 9 pivotally disposed within the first housing 1. The end face of the active ring 9 is flush with the first housing 1. An elastic locking pin 10 that cooperates with the first triggering mechanism is disposed on the active ring 9. The end of the elastic locking pin 10 away from the active ring 9 is limited to a limiting groove opened on the fixed base 3 and wedge-shapedly cooperates with the triggering protrusion 5. The power output end of the power mechanism is connected to the rotation shaft of the active ring 9 to drive the active ring 9 to move at least partially into the second housing 2.

[0028] In specific implementation, the fixed base 4 forms a semi-cylindrical support structure, and the active ring 9 and the semi-cylindrical support structure are coaxially arranged, meaning that the active ring 9 can rotate around the support structure. Based on the above structural description, the active ring 9 is pivotally mounted inside the first outer shell 1, allowing it to rotate within the first outer shell 1 so that the active ring 9 can partially move into the second outer shell 2. The trigger protrusion 5, the elastic locking pin 10, and the limiting groove on the fixed base 4 together constitute a positioning structure, thereby fixing the position of the active ring 9 when the torsion spring 11 is in a charged state. When the first outer shell 1 and the second outer shell 2 approach each other, a magnetic attraction is generated between the fixed magnet 8 and the trigger magnet 7. At this time, the trigger magnet 6, under the action of the magnetic force, drives the trigger slider 4 to slide towards the second outer shell 2, thereby causing the wedge-shaped surface of the trigger protrusion 5 to move, compressing the elastic locking pin 10 until it is pushed out of the limiting groove. The active ring 9 is released and can rotate freely. At this time, the power mechanism can output power to drive the locking mechanism part to move into the second outer shell 2, realizing the locking connection between the first outer shell 1 and the second outer shell 2. When unlocking, the active ring 9 rotates back into the first outer shell 1 under the drive of the unlocking mechanism. After the active ring 9 rotates, the elastic locking pin 10 is stuck on the wedge-shaped side wall of the trigger protrusion 5 in the limiting groove. When the first outer shell 1 and the second outer shell 2 move away from each other after unlocking, the trigger slider 4 is reset under the elastic restoring force of the reset spring 7, and drives the trigger protrusion 5 to reset as well, so as to lock the elastic pin 10 back into the limiting groove on the fixed base 3. At this time, the wedge-shaped surface of the elastic pin 10 and the trigger protrusion 5 abuts, so that the power mechanism can be triggered when the first outer shell 1 and the second outer shell 2 approach each other again.

[0029] In this example, the power mechanism uses a pop-out torsion spring 11 in a stored state. The pop-out torsion spring 11 is installed inside the first housing 1 to drive the locking mechanism part to move into the second housing 2. In implementation, a pin is fixed on the fixed base 4, and the pop-out torsion spring 11 is sleeved on the pin. One force-bearing end abuts against the fixed base 4, and the other force-bearing end abuts against the active ring 9.

[0030] Based on the above structural design, when the trigger protrusion 5 pushes the elastic pin 10 out of the limiting groove, the pop-out torsion spring 11, which is in a stored state, pops out the active ring 9 to drive its rotation and extend its rear part into the second housing 2. When unlocking, the unlocking mechanism needs to overcome the elastic force of the pop-out torsion spring 11 to reset the active ring 9, so that the pop-out torsion spring 11 returns to the stored state. It can be seen that using the elastic torsion spring 11 in a stored state can not only provide the power for the pop-out rotation of the active ring 9 conveniently and at low cost, but also effectively reduce the volume of this connection structure, making it suitable for small-size application scenarios.

[0031] In this embodiment, the locking mechanism further includes a passive ring 12 pivotally mounted inside the second housing 2. The end face of the passive ring 12 is flush with the second housing 2. The passive ring 12 and the active ring 9 are arranged opposite each other, and the two ends of the passive ring 12 and the active ring 9 are in contact and are respectively exposed outside the second housing 2 and the first housing 1. The active ring 9 can drive the passive ring 12 to rotate under the drive of the power mechanism, so as to drive the passive ring 12 to move partially into the first housing 1.

[0032] In this example, both the active ring 9 and the passive ring 12 are semi-circular. That is, in this embodiment, the two semi-circular rings formed by the active ring 9 and the passive ring 12 facing each other constitute an interlocking lock. Thus, when locked, the active ring 9 can drive the passive ring 12 to rotate until the active ring 9 is partially inserted into the second outer shell 2 and the passive ring 12 is partially inserted into the first outer shell 1. Compared with the structure of a single insertion locking connection, the connection strength is higher.

[0033] Preferably, a reset torsion spring 13 for driving the passive ring 12 to reset is also installed inside the second housing 2, and the reset torsion spring 13 is in its natural state. Specifically, a semi-cylindrical support column is provided inside the second housing 2, and the passive ring 12 can rotate around the support column. A pin is fixed on the support column, and the reset torsion spring 13 is mounted on the pin, with one force-bearing end abutting against the support column and the other force-bearing end abutting against the passive ring 12.

[0034] Based on the above structural design, when locked, the active ring 9 drives the passive ring 12 to rotate, causing the reset torsion spring 13 to change from its natural state to a charged state. After the unlocking mechanism drives the active ring 9 to reset, the passive ring 12 can automatically reset under the elastic restoring force of the reset torsion spring 13. In implementation, since the reset torsion spring 13 is only used to reset the passive ring 12, a torsion spring with a weaker elastic force than the pop-out torsion spring 11 is used for the reset torsion spring 13.

[0035] It should also be noted that, in some preferred embodiments, the unlocking mechanism includes an unlocking switch 14, an unlocking slider 15, and a driving pin 16. The unlocking switch 14 is disposed on the outer surface of the first housing 1, and the unlocking slider 15 and the driving pin 16 are disposed inside the first housing 1. The unlocking switch 14 and the unlocking slider 15 are connected, and the driving pin 16 is fixed on the active ring 9 of the locking mechanism and contacts the unlocking slider 15. When the unlocking slider 15 slides, it can drive the locking mechanism to reset through the driving pin 16.

[0036] Based on the above structural design, during unlocking, manually sliding the unlocking switch 14 causes the unlocking slider 15 to slide. The sliding of the unlocking slider 15 then causes the drive pin 16 to move, which in turn drives the active ring 9 to rotate against the elastic force of the pop-out torsion spring 11 until the elastic pin 10 fixed on the active ring 9 is engaged in the limiting groove to achieve reset. Therefore, the locking process of this application is a "foolproof" one-button connection, and the unlocking process is a one-button sliding unlock, enabling convenient locking and unlocking.

[0037] In a specific implementation, the unlocking switch 14 can also be formed directly by the part of the unlocking slider 15 that protrudes from the first housing 1.

[0038] In this embodiment, a mounting groove 17 is provided on the first housing 1, the unlocking switch 14 is installed in the mounting groove 17, and anti-slip protrusions are provided on the outer surface of the unlocking switch 14.

[0039] Based on the above structural description, by setting the mounting groove 17, the volume of the unlocking switch 14 protruding from the first outer shell 1 can be reduced after installation, while the anti-slip protrusion can effectively improve the ease of operation of the unlocking switch 14.

[0040] In summary, the working principle of this application is as follows: When locked, the first outer shell 1 and the second outer shell 2 approach each other, and the fixed magnet 8 and the trigger magnet 7 are magnetically attracted to each other. At this time, the trigger magnet 6 drives the trigger slider 4 to slide towards the second outer shell 2 under the action of the magnetic force, thereby triggering the wedge-shaped surface of the protrusion 5 to move and compress the elastic pin 10 until the elastic pin 10 is pushed out of the limiting groove. The active ring 9 is released and can rotate freely. At this time, the pop-out torsion spring 11 can drive the active ring 9 to rotate. The rotation of the active ring 9 can drive the opposite passive ring 12 to rotate until the active ring 9 is partially inserted into the second outer shell 2 and the passive ring 12 is partially inserted into the first outer shell 1, realizing the locking connection of the first outer shell 1 and the second outer shell 2. During the locking process, the drive pin 16 will drive the unlocking slider 15 to move the unlocking switch 14 to the right to the locked position. When unlocking, manually slide the unlock switch 14 to the left to the unlock position. The unlock switch 14 drives the unlock slider 15 to slide, and the sliding of the unlock slider 15 will drive the drive pin 16 to move, which in turn drives the active ring 9 to rotate against the elastic force of the pop-out torsion spring 11. At this time, the first outer shell 1 and the second outer shell 2 are not separated, and the trigger magnet 6 and the fixed magnet 8 are still in a state of attraction and pressure. The active ring 9 rotates back so that the elastic pin 10 exceeds the wedge-shaped surface of the trigger protrusion 5 and automatically locks into the side wall of the wedge-shaped surface of the trigger protrusion 5. When the active ring 9 rotates back, the passive ring 12 is reset and retracted under the action of the reset torsion spring 13. After the active ring 9 and the passive ring 12 are reset, the separation between the first outer shell 1 and the second outer shell 2 can be achieved, thus unlocking. After unlocking, the first outer shell 1 and the second outer shell 2 separate. At this time, the trigger magnet 6 and the fixed magnet 8 are released from their attraction state. Under the action of the elastic restoring force of the reset spring 7, the trigger slider 4 and the trigger magnet 6 are driven to rise and reset. The elastic pin 10 automatically snaps back under the wedge-shaped surface of the trigger protrusion 5 so that the first outer shell 1 and the second outer shell 2 can be triggered to lock when they approach each other next time.

[0041] Example 2:

[0042] This embodiment proposes the application of the concealed rotary connection structure as described in Embodiment 1 in the fields of packaging and storage, 3C product charging, and locks to achieve connection or locking between two components, such as in quick connection devices or locks.

[0043] In summary, the connection structure described in this application, through the trigger slider 4, trigger magnet 6, unlocking switch 14, unlocking slider 15, fixing magnet 8, pop-out torsion spring 11, elastic pin 10, reset torsion spring 13, active ring buckle 9, and passive ring buckle 12, forms a connection structure of interlocking semi-circular ring buckle combined with an internal elastic mechanism. When the male and female shells are close together, they achieve magnetic adhesion and automatic locking, thereby realizing buckle concealment and "foolproof" one-click docking. This solves the problems of insufficient reliability, misalignment, single function, and uneven appearance that exist in various connection structures in traditional technologies. It can be adapted to scenarios that require quick disassembly, locking, or power supply interfaces, such as power banks, storage boxes, packaging boxes, 3C product charging, storage cabinets, and locks.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A concealed rotary connection structure, characterized in that, It includes a first outer shell (1) and a second outer shell (2) that are flush with each other; a first triggering mechanism, a power mechanism, a locking mechanism and an unlocking mechanism are provided inside the first outer shell (1), wherein the operating end of the unlocking mechanism is exposed outside the first outer shell (1); a second triggering mechanism is provided inside the second outer shell (2); When the first outer shell (1) and the second outer shell (2) are close together, the second triggering mechanism cooperates with the first triggering mechanism to trigger the power mechanism to drive the locking mechanism to move at least partially into the second outer shell (2), thereby locking the first outer shell (1) and the second outer shell (2). The unlocking mechanism is used to drive the locking mechanism to reset in order to unlock the first outer shell (1) and the second outer shell (2).

2. The concealed rotary connection structure according to claim 1, characterized in that, The first triggering mechanism includes a fixed base (3) disposed inside the first housing (1), the fixed base (3) being disposed close to the second housing (2), a triggering slider (4) being slidably disposed inside the fixed base (3), and a triggering protrusion (5) for triggering the power mechanism being fixed on the triggering slider (4). A trigger magnet (6) is connected to the bottom of the trigger slider (4); The second triggering mechanism is fixed inside the second housing (2) on the side close to the first housing (1), and the second triggering mechanism and the triggering magnet (6) are magnetically attracted to each other.

3. The concealed rotary connection structure according to claim 2, characterized in that, A reset spring (7) is provided between the trigger slider (4) and the fixed base (3), and the second trigger mechanism adopts a fixed magnet (8).

4. The concealed rotary connection structure according to claim 1, characterized in that, The locking mechanism includes an active ring (9) pivotally disposed within the first housing (1), with the end face of the active ring (9) flush with the first housing (1). An elastic pin (10) cooperating with the first triggering mechanism is disposed on the active ring (9). The power output end of the power mechanism is connected to the rotation shaft of the active ring (9) to drive the active ring (9) to move at least partially into the second housing (2).

5. The concealed rotary connection structure according to claim 4, characterized in that, The power mechanism employs a pop-out torsion spring (11) in a stored state, which is installed inside the first housing (1) to drive the locking mechanism to move at least partially into the second housing (2).

6. The concealed rotary connection structure according to claim 4, characterized in that, The locking mechanism further includes a passive ring (12) pivotally mounted in the second housing (2). The end face of the passive ring (12) is flush with the second housing (2). The passive ring (12) and the active ring (9) are arranged opposite each other. The active ring (9) can drive the passive ring (12) to rotate under the drive of the power mechanism, so as to drive the passive ring (12) to move at least partially into the first housing (1).

7. The concealed rotary connection structure according to claim 6, characterized in that, A reset torsion spring (13) for driving the passive ring (12) to reset is also installed inside the second housing (2).

8. The concealed rotary connection structure according to claim 1, characterized in that, The unlocking mechanism includes an unlocking switch (14), an unlocking slider (15), and a driving pin (16). The unlocking switch (14) is located on the outer surface of the first housing (1). The unlocking slider (15) and the driving pin (16) are located inside the first housing (1). The unlocking switch (14) and the unlocking slider (15) are connected. The driving pin (16) is fixed on the locking mechanism and contacts the unlocking slider (15). When the unlocking slider (15) slides, the driving pin (16) can drive the locking mechanism to reset.

9. The concealed rotary connection structure according to claim 8, characterized in that, An installation groove (17) is provided on the first housing (1), the unlocking switch (14) is installed in the installation groove (17), and anti-slip protrusions are provided on the outer surface of the unlocking switch (14).

10. The application of a concealed rotary connection structure as described in any one of claims 1-9 in the fields of packaging and storage, 3C product charging, and locks to achieve connection or locking between two components.

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