Turnover mechanism, protective cover assembly and electronic equipment

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a turnover mechanism, a protective cover assembly and electronic equipment, the turnover mechanism can enable a protective cover to turn over relative to a panel and enable the protective cover to be switched between a locking position and an unlocking position, and the turnover mechanism comprises an elastic piece arranged between the panel and the protective cover, the protective cover can be driven to be close to an unlocking position from a locking position; and the limiting structure is arranged on the protective cover and the panel, and the limiting structure can limit movement of the protective cover and enable the protective cover to be kept at the unlocking position. According to the turnover mechanism, the stability of the protective cover in the unlocking position can be improved through cooperation of the elastic piece and the limiting structure, so that the protective cover is not prone to resetting and over-position in the unlocking position, and the use experience of a user is improved.

Description

Technical Field

[0001] This application discloses information in the field of electronic device technology, specifically relating to a flipping mechanism, a protective cover assembly, and an electronic device. Background Technology

[0002] The flip-locking panel cover is mainly used to protect digital products with displays, in order to prevent accidental operation and extend their service life.

[0003] The existing protective cover has poor stability when it is in the unlocked position after being flipped open. The cover is prone to resetting or overshooting the unlocked position, which can prevent the display from being displayed effectively and poses a safety hazard, affecting the user experience. Utility Model Content

[0004] In view of this, this application provides a flipping mechanism, a protective cover assembly, and an electronic device, which can improve the stability of the protective cover when it is in the unlocked position by cooperating with elastic elements and limiting structures, making it less likely for the protective cover to reset or over-position in the unlocked position, thereby improving the user experience.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] In a first aspect, a flipping mechanism is provided that enables a protective cover to flip relative to a panel and to switch the protective cover between a locked position and an unlocked position, comprising:

[0007] An elastic element, disposed between the panel and the protective cover, is capable of moving the protective cover from the locked position to the unlocked position;

[0008] A limiting structure is provided on the protective cover and the panel, the limiting structure being able to restrict the movement of the protective cover and keep the protective cover in the unlocked position.

[0009] In one feasible implementation, a buffer structure is also included, disposed at the rotational contact point between the panel and the protective cover.

[0010] In one feasible implementation, a first contact surface is provided on the panel, and a second contact surface is provided on the protective cover, wherein the first contact surface and the second contact surface cooperate to form the rotating contact portion;

[0011] The second contact surface is rotatable relative to the first contact surface, and the buffer structure is located between the first contact surface and the second contact surface, and is in contact with both the first contact surface and the second contact surface.

[0012] In one feasible implementation, the buffer structure includes a damping sleeve fixed to the first contact surface, the damping sleeve and the second contact surface being rotatably engaged.

[0013] In one feasible implementation, a central shaft is further included, which passes through the panel and the protective cover. The protective cover is capable of rotating relative to the panel with the central shaft as its axis. The elastic element is sleeved on the central shaft, and the limiting structure is disposed on one side of the central shaft.

[0014] In one possible implementation, at least one end of the central shaft is provided with an end cap, which is detachably connected to the panel.

[0015] In one feasible implementation, the limiting structure includes a protrusion disposed on one of the buffer structure and the second contact surface, and a recess disposed on the other, the recess being able to limit the protrusion so that the protective cover is held in the unlocked position.

[0016] In a second aspect, a protective cover assembly is provided, including a panel, a protective cover, and a flipping mechanism as described in any of the preceding claims, wherein the panel is provided with a snap-fit ​​structure that engages with the protective cover.

[0017] In one feasible implementation, the elastic element is disposed at the center of the panel, and two limiting structures are provided, respectively located on both sides of the elastic element. The center of the panel is aligned with the snap-fit ​​structure, which includes:

[0018] A locking element is movably mounted on the panel;

[0019] A mating part is provided on the protective cover. When the protective cover is in the locked position, the locking member is connected and engaged with the mating part. When the protective cover is in the unlocked position, the locking member is disengaged from the mating part.

[0020] An operating component is connected to the locking component and is capable of moving the locking component relative to the panel, thereby separating the locking component from the mating part.

[0021] Thirdly, an electronic device is provided, including a flipping mechanism as described in any of the preceding claims, or including a protective cover assembly as described in any of the preceding claims.

[0022] The flipping mechanism provided in this application uses an elastic element to automatically move the protective cover to the unlocked position after the protective cover and panel are unlocked. When the protective cover is in the unlocked position, a limiting structure restricts the protective cover from moving further. The elastic element acts on the protective cover to make it difficult for the protective cover to reset, and the limiting structure acts on the protective cover to prevent the protective cover from overshooting, thereby increasing the stability of the protective cover in the unlocked position and improving the user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a diagram showing the protective cover in the unlocked position.

[0025] Figure 2 This is a diagram showing the protective cover in the locked position.

[0026] Figure 3 This is an exploded view of the flipping mechanism.

[0027] Figure 4 This is an exploded view of the connection structure between the damping sleeve and the first connecting part;

[0028] Figure 5 This is a schematic diagram showing the positional relationship between the second contact surface and the recessed portion;

[0029] Figure 6 A cross-sectional view of the protective cover in the unlocked position;

[0030] Figure 7 This is a schematic diagram of the snap-fit ​​structure.

[0031] Figure label:

[0032] 1. Protective cover; 2. Panel; 3. Elastic element;

[0033] 4. Limiting structure; 401. Protrusion; 402. Recess;

[0034] 5. Damping sleeve; 501. Buffer section; 502. Snap-fit ​​section; 503. Insertion section;

[0035] 6. First connecting part; 61. First contact surface; 62. Mounting port; 7. Second connecting part; 71. Second contact surface; 8. Central shaft; 9. End cover; 10. Locking element; 11. Mating part; 12. Operating element; 13. First sliding hole; 14. Second sliding hole; 15. Spring; 16. Screw. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Rotatable locking panel covers are mainly used in situations where it is necessary to protect digital products with displays from accidental operation. Currently, the main types of rotating panel covers on the market are spring-loaded, torsion spring-loaded, and plastic. Among them, torsion spring-loaded covers use a torsion spring to separate the cover 1 from the panel 2, which requires a certain level of spring force. If the spring force is too small, the torsion spring will not easily drive the cover 1 to the preset unlocking position after it is opened, resulting in incomplete opening or even resetting of the cover 1, making it difficult to observe and operate the display screen. If the spring force is too large, the torsion spring will drive the cover 1 beyond the preset unlocking position after it is opened, causing it to move too far and fail to lock itself in the unlocking position. Excessive movement of the cover 1 can also pinch the operator's fingers, posing a safety hazard and affecting the user experience.

[0038] In response to the above problems, refer to Figures 1-7 This application provides a flipping mechanism that allows a protective cover 1 to flip relative to a panel 2 and to switch between a locked and unlocked position. The panel 2 has screw holes or mounting structures to fix it to a wall or enclosure wall using bolts or mounting structures. The end of the panel 2 furthest from the wall is used to mount a display screen. The protective cover 1 is connected to the panel 2 via the flipping mechanism. When the protective cover 1 is in the locked position, it fastens onto the panel 2 and covers the display screen, protecting it from accidental operation and damage. When the protective cover 1 is in the unlocked position, its position relative to the panel 2 changes, releasing the cover from obstructing the display screen and allowing the user to observe and operate the display content.

[0039] Reference Figure 1 , Figure 3 , Figure 4The flipping mechanism includes an elastic element 3, which is disposed between the panel 2 and the protective cover 1, and can drive the protective cover 1 from the locked position to the unlocked position. The elastic element 3 is preferably a torsion spring, which includes a spring body and a force-applying arm and a fixed arm extending from the spring body, respectively. The fixed arm abuts against the panel 2, and the force-applying arm abuts against the protective cover 1. After the protective cover 1 is unlocked, the protective cover 1 rotates around the connection position with the panel 2 as the axis of rotation. The force-applying arm of the torsion spring drives one end of the protective cover 1 to move away from the panel 2, so that the protective cover 1 automatically opens and moves to the unlocked position.

[0040] Reference Figure 3 , Figure 4 , Figure 5 The flipping mechanism also includes a limiting structure 4, which is installed on the protective cover 1 and the panel 2. The limiting structure 4 restricts the movement of the protective cover 1 and keeps it in the unlocked position. Thus, when the protective cover 1 moves to the unlocked position under the action of the torsion spring, the limiting structure 4 limits the protective cover 1 in the unlocked position, preventing one end of the protective cover 1 from moving further away from the panel 2. The force arm of the torsion spring applies force to the protective cover 1, and the limiting structure 4 and the torsion spring work together to lock the protective cover 1 in the unlocked position. With this configuration, after the protective cover 1 is unlocked from the panel 2, the user does not need to manually move the protective cover 1 to the unlocked position and lock it. The overall unlocking process is simple, convenient, and safe, improving the user experience. When designing the spring force, there is no need to consider excessive spring force causing the protective cover 1 to move excessively. Furthermore, increasing the spring force increases the support strength of the protective cover 1 in the unlocked position, making it less prone to resetting and facilitating the display screen display and use.

[0041] In one feasible implementation, refer to Figure 3 , Figure 4 It also includes a buffer structure, which is located at the rotational contact point between panel 2 and protective cover 1. This rotational contact point is the point where panel 2 and protective cover 1 are connected. The buffer structure at this location prevents the protective cover 1 from rotating relative to panel 2, slowing down its rotation and allowing it to move slowly to the unlocked position after unlocking. This effectively absorbs impact energy, preventing the protective cover 1 from moving too quickly and hitting the user's hand, thus improving the user experience. It also prevents damage to the limiting structure 4 due to wear and impact when the protective cover 1 moves quickly to the unlocked position, extending the overall lifespan of the device. Furthermore, the slow movement of the protective cover 1 reduces noise during movement and when it reaches the unlocked position, further enhancing the user experience.

[0042] Specifically, the panel 2 is provided with two first connecting parts 6, and the protective cover 1 is provided with two second connecting parts 7. The two second connecting parts 7 are located between the two first connecting parts 6. The two first connecting parts 6 and the two second connecting parts 7 are arranged in parallel directions. The two first connecting parts 6 and the two second connecting parts 7 correspond one-to-one. The second connecting parts 7 and the first connecting parts 6 are rotated together, so that the second connecting parts 7 can rotate relative to the first connecting parts 6, thereby enabling the protective cover 1 to switch between the locked position and the unlocked position.

[0043] Furthermore, refer to Figure 4 , Figure 5 The panel 2 has a first contact surface 61, and the protective cover 1 has a second contact surface 71. The first contact surface 61 and the second contact surface 71 cooperate to form a rotating contact portion. The second contact surface 71 can rotate relative to the first contact surface 61. A buffer structure is located between the first contact surface 61 and the second contact surface 71, and is in contact with both the first contact surface 61 and the second contact surface 71. The first contact surface 61 is the end face of the first connecting part 6 near the second connecting part 7, and the second contact surface 71 is the end face of the second connecting part 7 near the first connecting part 6. The buffer structure is located between the first connecting part 6 and the second connecting part 7. When the second connecting part 7 on the protective cover 1 rotates relative to the first connecting part 6 on the panel 2, the second contact surface 71 of the second connecting part 7 contacts the buffer structure. The buffer structure limits the rotation speed of the second connecting part 7, thereby limiting the rotation speed of the protective cover 1. The buffer structure is arranged at the rotational contact portion of the first connecting part 6 and the second connecting part 7. The buffer structure occupies the axial extension space of the first connecting part 6 and the second connecting part 7, but does not occupy the radial extension space of the first connecting part 6 and the second connecting part 7. This makes the component structure formed by the first connecting part 6, the second connecting part 7 and the buffer structure compact and occupies little space, which is conducive to reducing the overall structural size and reducing the cost of use.

[0044] In one feasible implementation, the buffer structure includes a damping sleeve 5 fixed to the first contact surface 61, with the damping sleeve 5 rotatably engaged with the second contact surface 71. One end of the damping sleeve 5 is fitted against the first contact surface 61 and fixed to the first connecting portion 6, while the other end of the damping sleeve 5 is fitted against the second contact surface 71 and rotatably engaged with the second connecting portion 7. When the protective cover 1 rotates relative to the panel 2 (the protective cover 1 moves from the locked position to the unlocked position, or from the unlocked position to the locked position), friction is generated between the second connecting portion 7 and the damping sleeve 5, which slows down the rotational speed of the second connecting portion 7. The buffer structure using the damping sleeve 5 is cost-effective and aesthetically pleasing. Preferably, the outer diameter of the damping sleeve 5, the outer diameter of the first connecting portion 6, and the outer diameter of the second connecting portion 7 are equal, thereby improving the aesthetics of the flipping mechanism.

[0045] In one specific implementation, refer to Figure 4The damping sleeve 5 includes a buffer portion 501, a snap-fit ​​portion 502, and a plug-in portion 503, both of which are fixed to the buffer portion 501. The buffer portion 501 is a sheet-like structure with a rough surface, such as a rubber pad or sheet; the snap-fit ​​portion 502 is a block-like structure; and the plug-in portion 503 is a cylindrical structure. The first connecting portion 6 has a receiving hole along its axial direction, and a mounting opening 62 is provided on the side wall of the first connecting portion 6 near the first contact surface 61. The plug-in portion 503 extends into the receiving hole of the first connecting portion 6, the buffer portion 501 is fitted against the first contact surface 61 with its rough surface facing the second contact surface 71, and the snap-fit ​​portion 502 is located within and adapted to the mounting opening 62. The mounting opening 62 is used to restrict the movement of the snap-fit ​​portion 502 relative to the first connecting portion 6, thereby restricting the movement of the buffer portion 501 relative to the first connecting portion 6. By adopting the above-mentioned configuration, the snap-fit ​​part 502 and the plug-in part 503 cooperate with the first connecting part 6, so that the damping sleeve 5 can be easily connected to the first connecting part 6 and the rotation of the damping sleeve 5 relative to the first connecting part 6 is restricted. The buffer part 501 is preferably made of rubber with good wear resistance, which ensures the buffering effect on the protective cover 1 and improves the service life.

[0046] Of course, besides the damping sleeve 5 mentioned above, other structures can also be used for the buffer structure. For example, the surfaces of the first contact surface 61 and the second contact surface 71 are both rough surfaces with a certain degree of roughness. The first contact surface 61 and the second contact surface 71 are fitted together to form a buffer structure. The friction of the first contact surface 61 and the second contact surface 71 themselves is used to achieve the deceleration function when the protective cover 1 moves towards the unlocked position. By adopting this setting, the damping sleeve 5 and related structures are eliminated, making the buffer structure simpler and reducing the cost of use.

[0047] In one feasible implementation, refer to Figure 1 , Figure 3The flipping mechanism also includes a central shaft 8, which passes through the panel 2 and the protective cover 1. The protective cover 1 can flip relative to the panel 2 with the central shaft 8 as its axis. An elastic element 3 is sleeved on the central shaft 8, and a limiting structure 4 is provided on one side of the central shaft 8. Both the first connecting part 6 on the panel 2 and the second connecting part 7 on the protective cover 1 have axially upward-facing receiving holes. The receiving hole on the second connecting part 7 is a through hole. The central shaft 8 passes through the receiving hole on the first connecting part 6, the central hole of the insertion part 503 located within the receiving hole, and the receiving hole on the second connecting part 7, thus connecting the first connecting part 6 and the second connecting part 7 via the central shaft 8. The central shaft 8 and the first connecting part 6 are fixed. When the protective cover 1 moves, the second connecting part 7 rotates with the central shaft 8 as its axis. The central shaft 8 supports the elastic element 3. When the elastic element 3 is a torsion spring, the spring body of the torsion spring is sleeved on the central shaft 8. The force-applying arm and the fixed arm of the torsion spring extend from the central shaft 8 towards the protective cover 1 and the panel 2, respectively, and abut against them. The limiting structure 4 is set on one side of the central shaft 8. When the second connecting part 7 rotates relative to the central shaft 8, the limiting structure 4 does not affect the normal rotation of the second connecting part 7 within a certain range, ensuring that the protective cover 1 rotates normally under the support of the central shaft 8.

[0048] In one feasible implementation, refer to Figure 2 , Figure 3 At least one end of the central shaft 8 is provided with an end cap 9, which is detachably connected to the panel 2. The end cap 9 has external threads, and the receiving hole of the first connecting part 6 of the panel 2 has internal threads. Thus, when assembling the flipping mechanism, the damping sleeve 5 is inserted into the receiving hole of the first connecting part 6, and then the torsion spring and the second connecting part 7 on the protective cover 1 are placed between the two first connecting parts 6 of the panel 2. The central shaft 8 is inserted from one side of one of the first connecting parts 6, passing through the second connecting part 7, the first connecting part 6, and the torsion spring. Finally, the end cap 9 is screwed into the receiving hole of the first connecting part 6, completing the assembly of the entire mechanism. This simplifies the entire assembly process and the connection method of the entire mechanism, facilitating subsequent disassembly and maintenance.

[0049] In one specific embodiment, the receiving hole on one first connecting part 6 is a through hole, and one end of the receiving hole on the other first connecting part 6 is provided with a closing part for sealing one end of the receiving hole. When installing the central shaft 8, the central shaft 8 first passes through the first connecting part 6 with the through hole, and finally extends into the first connecting part 6 with one end of the receiving hole closed. After screwing in the end cap 9, the end cap 9 presses one end of the central shaft 8 so that its other end abuts against the closing part, and the pressing force fixes the relative position of the central shaft 8 and the first connecting part 6. Alternatively, in another specific embodiment, one end of the central shaft 8 is fixed to the end cap 9, and after the end cap 9 is threadedly connected and fixed to the first connecting part 6, the relative position of the central shaft 8 and the first connecting part 6 is fixed.

[0050] In one feasible implementation, refer to Figure 3 , Figure 4 , Figure 5 The limiting structure 4 includes a protrusion 401 on one of the buffer structure and the second contact surface 71, and a recess 402 on the other. The recess 402 can limit the protrusion 401, keeping the protective cover 1 in the unlocked position. Thus, when the protective cover 1 rotates relative to the panel 2 under the action of the torsion spring, the second connecting part 7 rotates relative to the buffer structure, changing the relative position of the protrusion 401 and the recess 402. By using the end of the recess 402 to limit the protrusion 401, relative movement between the protrusion 401 and the recess 402 is achieved within a certain range. When the protrusion 401 is on the buffer structure and the recess 402 is on the second contact surface 71, when the second connecting part 7 rotates relative to the first connecting part 6, the recess 402 rotates with the second connecting part 7. The protrusion 401, as a limiting structure, prevents the recess 402 from moving further in the unlocked position of the protective cover 1. When the recessed portion 402 is provided on the buffer structure and the protrusion 401 is provided on the second connecting portion 7, when the second connecting portion 7 rotates relative to the first connecting portion 6, the protrusion 401 rotates with the second connecting portion 7. The end of the recessed portion 402 acts as a limiting structure, preventing the protrusion 401 from moving further in the unlocked position of the protective cover 1. The buffer structure is designed with the limiting structure 4 arranged on it, saving space and enabling the buffer structure to have both buffering and limiting functions. When the buffer structure is a damping sleeve 5, the protrusion 401 and the damping sleeve 5 can be integrally molded, reducing usage costs.

[0051] For ease of understanding, the following explanation will take the example of a protrusion 401 being located on the damping sleeve 5 and a recess 402 being located on the second contact surface 71.

[0052] The protrusion 401 is one of the protrusions, protrusions, or protrusions of the buffer part 501 of the damping sleeve 5. The recess 402 is a groove recessed on the second contact surface 71. The inner wall of the groove has an arc-shaped structure and a certain length. The protrusion 401 is located in the groove. When the protective cover 1 moves from the locked position to the unlocked position under the action of the torsion spring, the protective cover 1 drives the second connecting part 7 and the recess 402 thereon to rotate synchronously. The positions of the recess 402 and the protrusion 401 change, and one end of the protrusion 401 and the recess 402 gradually approach each other. When the protrusion 401 and one end of the recess 402 abut against each other, the protrusion 401 restricts the recess 402 from continuing to move, so that the second connecting part 7 is blocked. At this time, the protective cover 1 is in the unlocked position.

[0053] Preferably, the length of the recess 402 is designed so that when the protective cover 1 is in the unlocked position, the protective cover 1 and the panel 2 are in a roughly perpendicular relative position. This facilitates observation and operation of the display screen and prevents the protective cover 1 from moving excessively. Of course, the recess 402 can also be set to other lengths so that the protective cover 1 forms different angles with the panel 2 when in the unlocked position to meet different usage needs.

[0054] Secondly, referring to Figure 1 , Figure 2 A protective cover assembly is provided, including a panel 2, a protective cover 1, and a flipping mechanism as described above. The panel 2 is provided with a snap-fit ​​structure that cooperates with the protective cover 1. The panel 2 is used to support and mount a display screen, and the protective cover 1 is used to protect the display screen. After the protective cover 1 is fastened onto the panel 2, in order to prevent the protective cover 1 from moving to the unlocked position under the action of a torsion spring, a snap-fit ​​structure is provided to achieve a snap-fit ​​connection between the panel 2 and the protective cover 1.

[0055] In one feasible implementation, refer to Figure 6 , Figure 7 The elastic element 3 is located in the middle of the panel 2, between the two second connecting parts 7. There are two first connecting parts 6 and two second connecting parts 7, with one first connecting part 6 corresponding to one second connecting part 7. A limiting structure 4 is provided between the first connecting part 6 and the second connecting part 7. The flipping mechanism includes two limiting structures 4, located on both sides of the elastic element 3. The snap-fit ​​structure is located in the middle of the panel 2 and the protective cover 1, aligned with the center of the elastic element 3, ensuring a more even force distribution when the panel 2 and the protective cover 1 are connected by the snap-fit ​​structure.

[0056] Specifically, the latching structure includes a locking member 10, which is movably disposed on the panel 2; a mating part 11, which is disposed on the protective cover 1. When the protective cover 1 is in the locked position, the locking member 10 and the mating part 11 are connected and engaged. When the protective cover 1 is in the unlocked position, the locking member 10 and the mating part 11 are separated; and an operating member, which is connected to the locking member 10 and can drive the locking member 10 to move relative to the panel 2, thereby separating the locking member 10 and the mating part 11.

[0057] A blind hole is provided on the lower side of panel 2 away from the flip structure, and a first sliding hole 13 and a second sliding hole 14 are provided vertically from top to bottom on the lower side wall surface of panel 2. The first sliding hole 13 and the second sliding hole 14 are connected to the blind hole. A spring 15 is provided in the blind hole. The operating element is a push-button switch that is at least partially provided in the blind hole. One end of the push-button switch is connected to the spring 15, and the other end extends out of the blind hole through the second sliding hole 14. The locking element 10 is a locking tongue fixed on the push-button switch. The locking tongue includes a connecting part and a locking part. The connecting part is connected to the push-button switch and extends out of the blind hole through the first sliding hole 13. The locking part is located at the end of the connecting part and includes an inclined surface and a straight surface. The mating part 11 is a locking tongue retainer fixed on the protective plate.

[0058] When the protective cover 1 is engaged with the panel 2, pressing the protective cover 1 towards the panel 2 causes the latch pin to abut against the inclined surface of the latch, compressing the spring 15. Once the latch pin reaches the end of the inclined surface of the latch and abuts against the straight surface, the latch tends to return to its original position under the action of the spring 15, thus locking the protective cover 1. To unlock the protective cover 1, pushing the push-button switch compresses the spring 15, separating the straight surface of the engaging part from the latch pin. The protective cover 1 then moves to the unlocked position under the action of the torsion spring. This latching structure, using the above-described configuration, allows for easy locking and unlocking of the protective cover 1 and panel 2, facilitating the opening and closing of the protective cover 1.

[0059] When assembling the snap-fit ​​structure, first insert the spring 15 into the corresponding blind hole on the panel 2, then insert the button switch into the blind hole to press down the spring 15, insert the locking tongue into the preset hole on the button switch through the first sliding hole 13, and finally screw the screw 16 into the bottom of the button switch. The screw 16 passes through the inside of the button switch and pushes into the groove pre-opened on the connecting part of the locking tongue, so as to realize the connection and fixation of the locking tongue and the button switch. Insert the locking tongue retainer into the corresponding position inside the protective cover 1 to complete the snap-fit ​​structure assembly.

[0060] Thirdly, an electronic device is provided, including the flipping mechanism as described above, or including the protective cover assembly as described above. The electronic device has a display screen, operating surface, or operating interface that requires protection.

[0061] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A turnover mechanism, characterized in that The protection cover can be flipped relative to the panel and switched between a locked position and an unlocked position, comprising: a resilient member arranged between the panel and the protection cover and capable of driving the protection cover to move from the locked position to the unlocked position; a limiting structure arranged on the protection cover and the panel, capable of limiting the movement of the protection cover and keeping the protection cover in the unlocked position.

2. The turnover mechanism according to claim 1, characterized in that Further comprising a buffer structure arranged at the rotating contact position of the panel and the protection cover.

3. The turnover mechanism according to claim 2, wherein The panel is provided with a first contact surface, and the protection cover is provided with a second contact surface, the first contact surface and the second contact surface cooperate to form the rotating contact position; The second contact surface can rotate relative to the first contact surface, and the buffer structure is located between the first contact surface and the second contact surface and contacts both the first contact surface and the second contact surface.

4. The turnover mechanism according to claim 3, wherein The buffer structure comprises a damping sleeve fixed on the first contact surface, and the damping sleeve and the second contact surface are in rotating cooperation.

5. Turnover mechanism according to any of claims 1-4, characterized in that Further comprising a central shaft, the central shaft passes through the panel and the protection cover, the protection cover can be flipped relative to the panel with the central shaft as the axis, the resilient member is sleeved on the central shaft, and the limiting structure is arranged on one side of the central shaft.

6. The turnover mechanism according to claim 5, wherein At least one end of the central shaft is provided with an end cover, and the end cover is detachably connected with the panel.

7. The turnover mechanism according to claim 3, wherein The limiting structure comprises a protruding portion arranged on one of the buffer structure and the second contact surface, and a recessed portion arranged on the other, the recessed portion can limit the protruding portion to keep the protection cover in the unlocked position.

8. A protective cover assembly characterized by, The panel, the protection cover and the flipping mechanism of any one of claims 1-7 are comprised, and the panel is provided with a buckle structure matched with the protection cover.

9. The protective cover assembly of claim 8, wherein, The resilient member is arranged at the middle position of the panel, the limiting structure is arranged at both sides of the resilient member, the middle position of the panel is aligned with the buckle structure, and the buckle structure comprises: a locking member movably arranged on the panel; a matching portion arranged on the protection cover, the locking member is connected and clamped with the matching portion when the protection cover is in the locked position, and the locking member is separated from the matching portion when the protection cover is in the unlocked position; an operating member connected with the locking member and capable of driving the locking member to move relative to the panel to separate the locking member from the matching portion.

10. An electronic device, comprising: The flipping mechanism of any one of claims 1-7 or the protection cover assembly of any one of claims 8-9 is comprised.

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