Folding hinge and folding screen

Abstract

The application relates to the technical field of folding screens, and specifically discloses a folding hinge and a folding screen. The folding hinge comprises a mounting plate, two groups of turnover pieces and a linkage piece. The two groups of turnover pieces are symmetrically connected to opposite sides of the mounting plate. Each group of turnover pieces comprises a driving plate, an adjusting piece and a connecting plate. One end of the driving plate is rotationally connected to the mounting plate, and the other end of the driving plate is slidingly connected to the connecting plate. The connecting plate is used for connecting a hard screen. The adjusting piece is located on one side of the driving plate along the length direction of the mounting plate. One end of the adjusting piece is fixedly connected to the connecting plate, and the other end of the adjusting piece is rotationally connected to the mounting plate. The rotating shaft center of the adjusting piece is closer to the central axis of the length direction of the mounting plate than the rotating shaft center of the driving plate. The linkage piece is located between the two driving plates and is used for linking the two driving plates to realize synchronous and symmetric turnover actions. The application has the effect of improving the overall flatness of the folding screen, thereby improving the aesthetic appearance of the folding screen.

Description

Technical Field

[0001] This application relates to the technical field of foldable screens, and in particular to a folding hinge and a foldable screen. Background Technology

[0002] Foldable screens are an innovative display technology that allows screens to fold or unfold while maintaining a certain degree of flexibility. This technology is mainly used in electronic devices such as smartphones and tablets, bringing users a more convenient and diverse user experience.

[0003] With continuous technological advancements and cost reductions, a folding technology using two rigid screens has been developed. This involves installing a hinge between the two screens to prevent bending. However, since both screens have thickness, a hinge design means each screen has its own axis of rotation. The hinge position changes during the folding process, resulting in unevenness and affecting the aesthetics of the folded screen. This problem urgently needs to be solved. Summary of the Invention

[0004] In order to improve the overall flatness of the foldable screen and thus enhance its aesthetics, this application provides a folding hinge and a foldable screen.

[0005] This application provides a folding hinge and a folding screen, which adopt the following technical solution: A folding hinge, comprising: Mounting plate; Two sets of flipping components are symmetrically flipped and connected to opposite sides of the mounting plate. Each set of flipping components includes a drive plate, an adjusting component, and a connecting plate. One end of the drive plate is rotatably connected to the mounting plate, and the other end of the drive plate is slidably connected to the connecting plate. The connecting plate is used to connect the rigid screen. The adjusting component is located on one side of the drive plate along the length direction of the mounting plate. One end of the adjusting component is connected to the connecting plate, and the other end of the adjusting component is rotatably connected to the mounting plate. The rotation axis of the adjusting component is closer to the central axis of the mounting plate along its length direction than the rotation axis of the drive plate. A linkage component, located between the two drive plates, is used to synchronize the symmetrical flipping motion of the two drive plates.

[0006] By adopting the above technical solution, both sets of flipping components and linkage components are installed on the mounting plate. One drive plate performs a flipping action, which drives the other drive plate to perform a symmetrical flipping action synchronously through the linkage component. The symmetrical flipping action of the two drive plates drives the two hard screens to perform a symmetrical folding action through the connecting plate. During this process, the adjusting component adjusts the position of the two connecting plates so that the two hard screens are always in close contact, which helps to improve the overall flatness of the folding screen and thus improves the aesthetics of the folding screen. The rotation axis of the adjusting component is closer to the central axis of the mounting plate than the rotation axis of the drive plate, which avoids the arrangement of the linkage component and helps to reduce the gap between the two hard screens.

[0007] Preferably, the linkage is configured as two meshing gears, the two gears are located between the two drive plates, and the two drive plates are rotatably connected to one end of the mounting plate and respectively mesh with the two gears.

[0008] By adopting the above technical solution, the two-way meshing arrangement enables one drive plate to rotate, and the rotating drive plate drives the other drive plate to rotate synchronously and symmetrically through two meshing gears. The structure is simple and convenient, and the synchronization of the two drive plates is strong.

[0009] Preferably, the adjusting component includes a first adjusting plate, a second adjusting plate, and a third adjusting plate. One end of the first adjusting plate is rotatably connected to the mounting plate. One end of the second adjusting plate and the third adjusting plate are coaxially rotatably connected to the other end of the first adjusting plate. The side wall of the other end of the first adjusting plate is rotatably connected to the side wall of the driving plate. The other end of the second adjusting plate is fixedly connected to the connecting plate. The other end of the third adjusting plate is rotatably connected to the connecting plate. The third adjusting plate is located between the second adjusting plate and the connecting plate. The rotation axis of the first adjusting plate is set as the rotation axis of the adjusting component as a whole.

[0010] By adopting the above technical solution, when one connecting plate rotates, the rotation of the connecting plate drives the drive plate to rotate. The rotation of the drive plate drives another set of flipping parts to rotate symmetrically in sync through meshing gears. At the same time, the rotation of the drive plate drives the first adjusting plate to rotate. The rotating first adjusting plate pushes the third adjusting plate, which in turn pushes the connecting plate. The moving connecting plate then cooperates to push the second adjusting plate to rotate, thus forming a closed loop of flipping action. The bending length can be adjusted by adjusting the rotation axis positions of the drive plate, the first adjusting plate, the second adjusting plate, and the third adjusting plate. At the same time, it can also provide clearance space for the support of the rigid screen and the bending action. The structure is ingenious and reasonable.

[0011] Preferably, the connecting plate has a movable groove for the drive plate to slide through, and the movable groove is arranged in a through groove shape.

[0012] By adopting the above technical solution, when the connecting plate is flipped under the drive of the drive plate, the hard screen is adjusted under the adjustment of the adjustment component. In order to avoid interference between the two actions of driving and adjustment, the drive plate slides in the corresponding movable slot.

[0013] Preferably, the number of drive plates is set to two, and the two drive plates are symmetrically arranged on both sides of the adjusting member, and two corresponding movable slots are opened.

[0014] By adopting the above technical solution, the structure of these two drive plates surrounding an adjustment component helps to improve the stability of the flipping action.

[0015] Preferably, the mounting plate is provided with a cover plate, which covers the end of the adjusting member that is rotatably connected to the mounting plate, and the cover plate is provided with an arc-shaped groove for the adjusting member to rotate.

[0016] By adopting the above technical solution, the cover plate supports the end of the adjusting component that is rotatably connected to the mounting plate, and the end of the adjusting component rotates in the arc groove, which helps to improve the stability of the adjusting function of the adjusting component.

[0017] Preferably, the wall of the arc-shaped groove is provided with a limiting block, and the side wall of the adjusting member is provided with a limiting groove for the limiting block to be inserted and moved. When the two sets of adjusting members are located on the same plane, the limiting block abuts against the wall of the limiting groove.

[0018] By adopting the above technical solution, when the adjusting component is adjusting, the limiting block slides in the limiting groove. When the two sets of adjusting components are rotated to be on the same plane, the two hard screens are in an open state. The limiting block abuts against the groove wall of the limiting groove to limit the movement and prevent the two hard screens from over-folding.

[0019] Preferably, the cover plate has several mounting grooves on both sides along its length.

[0020] By adopting the above technical solution, the mounting slot not only facilitates the rotational connection of the drive plate on the mounting plate, but also reduces weight, making the folding hinge lighter.

[0021] Preferably, it further includes a damping element, which includes a damping spring and a damping block. One end of the damping block abuts against the damping spring, and the other end of the damping block abuts against the drive plate. The damping block and the drive plate are engaged in a sawtooth pattern.

[0022] By adopting the above technical solution, the cooperation of the damping spring, damping block and drive plate is beneficial to improving the stability of the connecting plate when it rotates, and also beneficial to improving the stability of the hinge in maintaining a stationary state.

[0023] A folding screen includes the aforementioned folding hinge and two rigid screens, the two rigid screens being respectively fixedly connected to two connecting plates.

[0024] By adopting the above technical solution, the two hard screens are fixedly connected to the two connecting plates respectively. When the two hard screens are flipped, the side edges of the two hard screens always remain in contact, reducing the gap during the flipping process and thus improving the aesthetics.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a drive plate, an adjusting component, and a connecting plate, with the rotation axis of the adjusting component being closer to the central axis of the mounting plate along its length than the rotation axis of the drive plate, one drive plate performs a flipping action, which drives the other drive plate to perform a symmetrical flipping action synchronously through the linkage component. The symmetrical flipping action of the two drive plates drives the two hard screens to perform a symmetrical folding action through the connecting plate. During this process, the adjusting component adjusts the position of the two connecting plates, so that the two hard screens are always in close contact, which helps to improve the overall flatness of the folding screen, thereby improving the aesthetics of the folding screen. The rotation axis of the adjusting component is closer to the central axis of the mounting plate than the rotation axis of the drive plate, which allows for the arrangement of the linkage component and helps to reduce the gap between the two hard screens.

[0026] 2. By setting the linkage as two meshing gears, and the two drive plates rotatably connected to one end of the mounting plate and meshing with the two gears respectively, this pairwise meshing setting allows one drive plate to rotate synchronously and symmetrically when the other drive plate rotates, through the two meshing gears. The structure is simple and convenient, and the synchronization of the two drive plates is strong.

[0027] 3. By setting up a first adjustment plate, a second adjustment plate, and a third adjustment plate, when one connecting plate rotates, the rotation of the connecting plate drives the drive plate to rotate. The rotation of the drive plate drives another set of flipping parts to rotate symmetrically in sync through meshing gears. At the same time, the rotation of the drive plate drives the first adjustment plate to rotate. The rotating first adjustment plate pushes the third adjustment plate, which in turn pushes the connecting plate. The rotating connecting plate then pushes the second adjustment plate to rotate, thus forming a closed loop of flipping action. The bending length can be adjusted by adjusting the rotation axis positions of the drive plate, the first adjustment plate, the second adjustment plate, and the third adjustment plate. At the same time, it can also provide clearance space for the support of the rigid screen and the bending action. The structure is ingenious and reasonable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the folding hinge in an embodiment of this application.

[0029] Figure 2 This is a structural schematic diagram of the folding hinge from another perspective in an embodiment of this application.

[0030] Figure 3 This is an exploded view of the folding hinge in an embodiment of this application.

[0031] Figure 4 This is a schematic diagram of the structure of the two sets of flipping components in the embodiments of this application.

[0032] Figure 5 This is a structural schematic diagram of the two sets of flipping components from another perspective in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram of the structure of the adjusting component in the embodiments of this application.

[0034] Figure 7 This is a schematic diagram showing the cooperation relationship between the drive board and the first adjustment board in an embodiment of this application.

[0035] Figure 8 This is a schematic diagram of the cover plate in an embodiment of this application.

[0036] Figure 9 This is a schematic diagram showing the connection relationship between the cover plate and the adjusting member in an embodiment of this application.

[0037] Figure 10 This is a schematic diagram of the structure of the folding screen in the open state in the embodiment of this application.

[0038] Figure 11 This is a schematic diagram of the folding screen in a semi-folded state in an embodiment of this application.

[0039] Figure 12 This is a schematic diagram of the foldable screen in a folded state in an embodiment of this application.

[0040] Explanation of reference numerals in the attached figures: 1. Mounting plate; 2. Flipping component; 21. Drive plate; 22. Adjusting component; 221. First adjusting plate; 222. Second adjusting plate; 223. Third adjusting plate; 23. Connecting plate; 3. Gear; 4. Movable groove; 5. Cover plate; 6. Arc groove; 7. Limiting block; 8. Limiting groove; 9. Mounting groove; 10. Damping component; 101. Damping spring; 102. Damping block; 11. Hard screen; 12. Pin; 13. Slide groove. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0042] This application discloses a folding hinge, as shown in the embodiments below. Figure 1 and Figure 2It includes a mounting plate 1, two sets of flipping parts 2, and a linkage part. The two sets of flipping parts 2 are symmetrically flipped and connected to opposite sides of the mounting plate 1. The linkage part is located between the two sets of flipping parts 2 and is used to link the two sets of flipping parts 2 to rotate synchronously and symmetrically, thereby realizing the folding function.

[0043] Reference Figures 2-5 Each set of flipping components 2 includes a drive plate 21, an adjusting component 22, and a connecting plate 23. One end of the drive plate 21 is rotatably connected to the mounting plate 1, and the other end is slidably connected to the connecting plate 23. The connecting plate 23 is used to connect the rigid screen 11. The adjusting component 22 is located on one side of the drive plate 21 along the length direction of the mounting plate 1. One end of the adjusting component 22 is connected to the connecting plate 23, and the other end is rotatably connected to the mounting plate 1. The rotation axis of the adjusting component 22 is closer to the central axis of the mounting plate 1 along its length direction than the rotation axis of the drive plate 21. When the connecting plate 23 is folded, the connecting plate 23 drives the drive plate 21 to rotate. During this process, the adjusting component 22 adjusts the state of the connecting plate 23 so that the two rigid screens 11 connected by the two connecting plates 23 are always in close contact, thereby improving the overall flatness of the folding screen and thus improving its aesthetics. It is worth mentioning that the rotation axis of the adjusting component 22 is closer to the central axis of the mounting plate 1 than the rotation axis of the drive plate 21, which avoids the arrangement of the linkage components and helps to reduce the gap between the two hard screens 11.

[0044] Reference Figure 3 , Figure 4 as well as Figure 5 The connecting plate 23 has a movable groove 4 for the drive plate 21 to slide through. The movable groove 4 is a through groove, allowing the drive plate 21 to pass through and enabling the drive plate 21 to drive the connecting plate 23 to perform a folding action. In this embodiment, there are two drive plates 21, which are symmetrically arranged on both sides of the adjusting member 22. There are two movable grooves 4 corresponding to each drive plate 21 to improve the stability of the folding action of the connecting plate 23.

[0045] Reference Figures 4-7The adjusting component 22 includes a first adjusting plate 221, a second adjusting plate 222, and a third adjusting plate 223. One end of the first adjusting plate 221 is rotatably connected to the mounting plate 1. One end of the second adjusting plate 222 and the third adjusting plate 223 are coaxially rotatably connected to the other end of the first adjusting plate 221. The side wall of the other end of the first adjusting plate 221 is rotatably connected to the side wall of the drive plate 21. The other end of the second adjusting plate 222 is fixedly connected to the connecting plate 23. The other end of the third adjusting plate 223 is rotatably connected to the connecting plate 23. The third adjusting plate 223 is located between the second adjusting plate 222 and the connecting plate 23. The rotation axis of the first adjusting plate 221 is set as the rotation axis of the adjusting component 22 as a whole. In this embodiment, when a connecting plate 23 rotates, the rotation of the connecting plate 23 drives the driving plate 21 to rotate through the sliding engagement of the movable groove 4 and the driving plate 21. The rotation of the driving plate 21 drives another set of flipping parts 2 to rotate symmetrically in sync through the meshing gear 3. At the same time, the rotation of the driving plate 21 drives the first adjusting plate 221 to rotate through the engagement of the side wall and the nail groove of the first adjusting plate 221. In this embodiment, the nail groove engagement adopts the method of pin shaft 12-slide groove 13 engagement to achieve linkage. When the action occurs, the pin shaft 12 slides in the slide groove 13. In other embodiments, the pin-arc groove engagement can also be adopted, as long as the linkage function is achieved, it is not limited here. The rotating first adjusting plate 221 pushes the third adjusting plate 223 through cylindrical rotation. The third adjusting plate 223 then pushes the connecting plate 23 through cylindrical rotation. The moving connecting plate 23 then pushes the second adjusting plate 222 to rotate through cylindrical rotation, thus forming a closed loop of flipping action. In this embodiment, the cylindrical rotation is achieved by a pin hinge. Other structures that can achieve cylindrical rotation can also be substituted, and are not limited here. The bending length can be adjusted by adjusting the pivot positions of the driving plate 21, the first adjusting plate 221, the second adjusting plate 222, and the third adjusting plate 223, while also providing clearance for the rigid screen support and bending action. The structure is ingenious and reasonable.

[0046] Reference Figure 1 Mounting plate 1 is equipped with a cover plate 5, and then refer to... Figure 6 and Figure 7 The cover plate 5 presses down on the end of the adjusting member 22, which is rotatably connected to the mounting plate 1. In this embodiment, the cover plate 5 presses down on the first adjusting plate 221. At the same time, the cover plate 5 is provided with an arc-shaped groove 6 for the first adjusting plate 221 to rotate, and the first adjusting plate 221 rotates in the arc-shaped groove 6.

[0047] Reference Figure 8 and Figure 9Each of the two opposing walls of the arc-shaped groove 6 is provided with a limiting block 7, located at one end of the arc-shaped groove 6. Simultaneously, each of the two side walls of the first adjusting plate 221 has a limiting groove 8 for the limiting block 7 to insert and move. When the first adjusting plate 221 rotates within the arc-shaped groove 6, the limiting block 7 slides within the limiting groove 8. It should be noted that when the two sets of first adjusting plates 221 rotate to the same plane, the two rigid screens 11 connected to the connecting plate 23 are in an open state. At this time, the limiting block 7 abuts against the groove wall of the limiting groove 8 to prevent the first adjusting plate 221 from continuing to rotate, thereby preventing the two rigid screens 11 from excessively folding.

[0048] Reference Figure 8 and Figure 9 The cover plate 5 has several mounting slots 9 on both sides along its length. The mounting slots 9 not only facilitate the connection of the drive plate 21 to the mounting plate 1, but also reduce the weight, making the folding hinge lighter.

[0049] Reference Figure 1 , Figure 2 as well as Figure 3 The linkage is configured as two meshing gears 3, located between two drive plates 21. The two drive plates 21 are rotatably connected to one end of the mounting plate 1 and mesh with the two gears 3 respectively. In this embodiment, the end of the drive plate 21 near the mounting plate is integrally formed with a sector-shaped tooth, which meshes with the corresponding gear 3. When one drive plate 21 rotates, it drives the meshing gear 3 to rotate via the sector-shaped tooth. The rotating gear 3 drives the other meshing gear 3 to rotate, and the other gear 3 then drives the other drive plate 21 to rotate. The rotation directions of the two drive plates 21 are opposite, thus achieving synchronous and symmetrical flipping of the two drive plates 21. The simple structure and strong transmission of the two meshing gears 3 result in strong synchronous flipping of the two drive plates 21.

[0050] Reference Figure 1 and Figure 2 The folding hinge also includes a damping element 10, which includes a damping spring 101 and a damping block 102. One end of the damping block 102 abuts against the damping spring 101, and the other end of the damping block 102 abuts against the drive plate 21. The damping block 102 and the drive plate 21 are engaged in a sawtooth pattern to improve the stability of the drive plate 21 when it rotates. This is a conventional setting for damping structures and will not be described in detail here.

[0051] The implementation principle of the folding hinge in this embodiment is as follows: When one connecting plate 23 rotates, the connecting plate 23 drives the driving plate 21 to rotate. The driving plate 21 drives the other driving plate 21 to rotate synchronously and symmetrically through two meshing gears 3, causing the rigid screen 11 connected to the two connecting plates 23 to fold. During the rotation of the driving plate 21, the rotation of the driving plate 21 drives the first adjusting plate 221 to rotate. The rotating first adjusting plate 221 pushes the third adjusting plate 223, and the third adjusting plate 223 pushes the connecting plate 23. The moving connecting plate 23 then cooperates to push... The second adjustment plate 222 rotates, forming a closed loop of flipping action. The bending length can be adjusted by adjusting the pivot positions of the drive plate 21, the first adjustment plate 221, the second adjustment plate 222, and the third adjustment plate 223. At the same time, it can also provide clearance for the support of the rigid screen and the bending action. The structure is ingenious and reasonable. Meanwhile, the drive plate 21 slides through the connecting plate 23, so that the driving action and the adjustment action do not interfere with each other. The two rigid screens 11 connected by the two connecting plates 23 are always in close contact to improve the overall flatness of the folding screen, thereby improving the aesthetics of the folding screen.

[0052] This application also discloses a foldable screen, see embodiments thereof. Figure 10 , Figure 11 as well as Figure 12 Including the aforementioned folding hinge, it also includes two hard screens 11, which are fixedly connected to two connecting plates 23 respectively. When the two hard screens 11 are flipped, the side edges of the two hard screens 11 always remain in contact, reducing the gaps during the flipping process and thus improving the aesthetics.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A folding hinge, characterized in that, include: Mounting plate (1); Two sets of flipping components (2) are symmetrically flipped and connected to opposite sides of the mounting plate (1). Each set of flipping components (2) includes a drive plate (21), an adjusting component (22), and a connecting plate (23). One end of the drive plate (21) is rotatably connected to the mounting plate (1), and the other end of the drive plate (21) is slidably connected to the connecting plate (23). The connecting plate (23) is used to connect the hard screen (11). The adjusting component (22) is located on one side of the drive plate (21) along the length direction of the mounting plate (1). One end of the adjusting component (22) is connected to the connecting plate (23), and the other end of the adjusting component (22) is rotatably connected to the mounting plate (1). The rotation axis of the adjusting component (22) is closer to the central axis of the length direction of the mounting plate (1) than the rotation axis of the drive plate (21). The linkage component is located between the two drive plates (21) and is used to link the two drive plates (21) to synchronously and symmetrically rotate.

2. A folding hinge according to claim 1, characterized in that: The linkage is configured as two meshing gears (3), which are located between the two drive plates (21). The two drive plates (21) are rotatably connected to one end of the mounting plate (1) and mesh with the two gears (3) respectively.

3. A folding hinge according to claim 1, characterized in that: The adjusting component (22) includes a first adjusting plate (221), a second adjusting plate (222), and a third adjusting plate (223). One end of the first adjusting plate (221) is rotatably connected to the mounting plate (1). One end of the second adjusting plate (222) and the third adjusting plate (223) are coaxially rotatably connected to the other end of the first adjusting plate (221). The side wall of the other end of the first adjusting plate (221) is rotatably connected to the side wall of the driving plate (21). The other end of the second adjusting plate (222) is fixedly connected to the connecting plate (23). The other end of the third adjusting plate (223) is rotatably connected to the connecting plate (23). The third adjusting plate (223) is located between the second adjusting plate (222) and the connecting plate (23). The rotation axis of the first adjusting plate (221) is set as the rotation axis of the entire adjusting component (22).

4. A folding hinge according to claim 1, characterized in that: The connecting plate (23) has a movable groove (4) through which the driving plate (21) slides. The movable groove (4) is a through groove.

5. A folding hinge according to claim 4, characterized in that: The number of drive plates (21) is set to two, and the two drive plates (21) are symmetrically arranged on both sides of the adjusting member (22), and two corresponding movable slots (4) are opened.

6. A folding hinge according to claim 1, characterized in that: The mounting plate (1) is provided with a cover plate (5), which covers the end of the adjusting member (22) and is rotatably connected to the mounting plate (1). The cover plate (5) is provided with an arc-shaped groove (6) for the adjusting member (22) to rotate.

7. A folding hinge according to claim 6, characterized in that: The arc-shaped groove (6) has a limiting block (7) on its groove wall, and the side wall of the adjusting member (22) has a limiting groove (8) for the limiting block (7) to be inserted and moved. When the two sets of adjusting members (22) are located on the same plane, the limiting block (7) abuts against the groove wall of the limiting groove (8).

8. A folding hinge according to claim 6, characterized in that: The cover plate (5) has several mounting grooves (9) on both sides along its length.

9. A folding hinge according to claim 1, characterized in that: It also includes a damping element (10), which includes a damping spring (101) and a damping block (102). One end of the damping block (102) abuts against the damping spring (101), and the other end of the damping block (102) abuts against the drive plate (21). The damping block (102) and the drive plate (21) are engaged in a sawtooth pattern.

10. A folding screen, comprising the folding hinge according to any one of claims 1-9, characterized in that: It also includes two hard screens (11), which are fixedly connected to the two connecting plates (23) respectively.

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