Flexible screen folding electronic terminal and hinge

Abstract

The utility model provides a kind of applied to flexible screen folding electronic terminal and hinge, the flexible screen folding electronic terminal includes left side shell, right side shell, flexible screen and hinge;Flexible screen is arranged in the inside of flexible screen folding electronic terminal, is connected with left side shell, right side shell respectively, left side shell, right side shell and the hinge connection can fold and flatten flexible screen;Flexible screen folding electronic terminal is also provided with elastic mechanism, the utility model can flatten when flexible screen, outward tension flexible screen makes it have certain prestress, can have better reaction force to touch control operation so that operator is not easy to feel the part of flexible screen back without support, improve the experience of touch control operation, and also help to eliminate the residual crease in flexible screen middle;And, this outward tension movement, do not interfere with the folding and flattening movement of flexible screen folding electronic terminal, and can eliminate the clearance between its own parts, improve precision.

Description

Technical Field

[0001] This utility model relates to a flexible screen folding electronic terminal and a hinge. The flexible screen folding electronic terminal can be a mobile phone, a laptop computer, etc. Background Technology

[0002] In flexible foldable electronic devices, the increasing demand for thinness inevitably leads to interference between the central flexible screen support plate and hinge components, necessitating the creation of openings in the central support plate. Furthermore, in some structures using two movable support plates to support the central flexible screen, gaps also exist between the two plates. All of these factors negatively impact the user experience of touching the central flexible screen.

[0003] Furthermore, after a period of use, the flexible screen in flexible foldable electronic terminals will generally have residual creases in the middle. When the flexible screen is unfolded, these residual creases have a significant impact on improving the user experience. Utility Model Content

[0004] The first objective of this invention is to provide a flexible folding electronic terminal that can at least partially improve the user experience of touch operation in the center of the flexible screen and at least alleviate the problem of creases in the center. To this end, this invention adopts the following technical solution:

[0005] A flexible screen folding electronic terminal includes a left shell, a right shell, a flexible screen, and a hinge; the flexible screen is disposed on the inner side of the flexible screen folding electronic terminal and is connected to the left shell and the right shell respectively; the left shell, the right shell, and the hinge are connected to enable the flexible screen to be folded and unfolded; characterized in that the flexible screen folding electronic terminal is further provided with an elastic mechanism that can tension the flexible screen to both sides when the flexible screen folding electronic terminal is unfolded.

[0006] The hinge of the flexible screen folding electronic terminal can be any of the following types of hinges.

[0007] According to the second objective of this utility model, it provides a hinge for a flexible screen folding electronic terminal, which can tension the flexible screen when the flexible screen folding electronic terminal is in a flattened state, thereby at least partially improving the user experience of touch operation in the middle of the flexible screen, and can be applied to the aforementioned flexible screen folding electronic terminal. To this end, this utility model adopts the following technical solution:

[0008] A hinge for a flexible folding electronic terminal includes a left connecting arm and a right connecting arm, as well as a left sliding frame and a right sliding frame. The left and right connecting arms are rotatably mounted on both sides of a central support. The left and right sliding frames are slidably connected to the left and right connecting arms, respectively. The left and right sliding frames can slide along rotation axes perpendicular to the left and right connecting arms, respectively, when the flexible folding electronic terminal is opened and folded. The left and right sliding frames are respectively provided with connection points to the left and right shells of the flexible folding electronic terminal. The hinge is characterized by having elastic top sliding frame mechanisms on the left and right sides as elastic mechanisms. When the flexible folding electronic terminal is in a flattened state, the elastic top sliding frame mechanisms on the left and right sides respectively push the left and right sliding frames away from the central support.

[0009] Based on the above technical solution, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0010] The mechanism of the elastic top sliding frame is located between the left connecting arm and the left sliding frame, and between the right connecting arm and the right sliding frame.

[0011] The hinge is also provided with a left push-pull link and a right push-pull link, which are rotatably mounted on both sides of the central support. The left sliding frame and the right sliding frame are movably connected to the second end of the left push-pull link and the right push-pull link, respectively. The connection structure of the movable connection adopts the fit of an oblong hole and a shaft. The oblong hole is provided on the left sliding frame and the right sliding frame. The length direction of the oblong hole of the left sliding frame and the right sliding frame is consistent with the sliding direction of the left sliding frame and the right sliding frame, respectively.

[0012] The mechanism of the elastic top sliding frame is set between the left push-pull link and the left sliding frame, and between the right push-pull link and the right sliding frame.

[0013] The left and right push-pull links are each equipped with a cam, which acts on the elastic mechanism when the left and right push-pull links rotate.

[0014] The elastic mechanism employs an elastic element, or is a mechanism consisting of an elastic element and a mechanical connection structure. The range of elastic elements includes wire springs, sheet springs, disc springs, and rubber blocks. The wire spring is configured as a compression spring or a torsion spring.

[0015] The second ends of the left and right push-pull linkages are provided with cams, so that the cams rotate synchronously with the push-pull linkages connected to them about the rotation axis of the second end of the push-pull linkage. The left and right sliding frames are provided with receiving parts of the elastic mechanism. The receiving parts are provided with the elastic mechanism action parts facing the cam surface. The elastic mechanism is located between the action parts and the cam surface.

[0016] The central support includes a fixed support and a left movable support and a right movable support located to the left and right of the fixed support, respectively. The left movable support and the right movable support are slidably connected to the fixed support. The sliding paths of the left movable support and the right movable support are perpendicular to the rotation axis of the left connecting arm and the rotation axis of the right connecting arm, respectively. The left connecting arm and the right connecting arm are rotatably mounted on the left movable support and the right movable support, respectively. The left push-pull linkage and the right push-pull linkage are rotatably mounted on the left movable support and the right movable support, respectively. The mechanism of the elastic top sliding frame is arranged between the fixed support and the left movable support and between the fixed support and the right movable support.

[0017] The fixed support is respectively provided with the guide rail and limiting structure of the left movable support and the guide rail and limiting structure of the right movable support.

[0018] The first end and the middle support of the push-pull linkage are connected by a virtual circular center rotation connection structure of a circular arc slider and a circular arc guide groove.

[0019] The left connecting arm and the right connecting arm are connected by a synchronous reverse rotation connection structure;

[0020] During the rotation of the flexible screen foldable electronic terminal from folding to unfolding, the left sliding frame and the right sliding frame slide towards the rotation axis of the left connecting arm and the rotation axis of the right connecting arm, respectively. During the rotation of the flexible screen foldable electronic terminal from unfolding to folding, the left sliding frame and the right sliding frame slide away from the rotation axis of the left connecting arm and the rotation axis of the right connecting arm, respectively.

[0021] The left sliding frame and the left connecting arm are movably connected to the left movable support plate in the middle of the flexible screen, and the right sliding frame and the right connecting arm are movably connected to the right movable support plate in the middle of the flexible screen.

[0022] By adopting the technical solution of this utility model, the flexible screen can be stretched outwards to give it a certain prestress when it is unfolded, which can provide better reaction force for touch operation and make it less likely for the operator to feel the unsupported part on the back of the flexible screen, thus improving the touch operation experience. It also helps to eliminate residual creases in the middle of the flexible screen. Furthermore, this outward stretching movement does not interfere with the folding and unfolding movement of the flexible screen folding electronic terminal, and can eliminate the gaps between its own parts, thus improving precision. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the flexible screen folding electronic terminal embodiment of this utility model viewed from the back in its flattened state.

[0024] Figure 2 This is an exploded view of the structure of an embodiment of the flexible screen folding electronic terminal of this utility model.

[0025] Figure 3 This is a cross-sectional view of the flexible screen folding electronic terminal embodiment of this utility model in its unfolded state.

[0026] Figure 4 This is an exploded view of the structure of the flexible screen folding electronic terminal hinge of this utility model.

[0027] Figure 5 This is a cross-sectional view of the flexible screen folding electronic terminal hinge of this utility model in its flattened state.

[0028] Figures 6 to 9 These are schematic diagrams of the back of the flexible screen folding electronic terminal hinge of this utility model, showing different implementations of the hinge with different elastic elements, in their respective flattened states.

[0029] Figure 10 This is a cross-sectional view of the folded state of an embodiment of the flexible screen foldable electronic terminal of this utility model.

[0030] Figure 11 This is an exploded view of another embodiment of the flexible screen folding electronic terminal hinge of this utility model.

[0031] Figure 12 and Figure 13 They are respectively Figure 11 The hinge shown is implemented using different elastic elements, and is shown as a rear view in a flattened state.

[0032] Figure 14 This is an exploded view of the structure of the third embodiment of the flexible screen folding electronic terminal hinge of this utility model.

[0033] Figure 15 This is a schematic diagram of a flexible screen folding electronic terminal example using the third embodiment of the hinge of this utility model, viewed from the front in a flattened state.

[0034] Figure 16 and Figure 17 They are respectively Figure 15 AA section view and BB section view.

[0035] Figure 18 This is a cross-sectional view of the fixed support and the movable support of the third embodiment of the flexible screen folding electronic terminal hinge of this utility model.

[0036] Figure 19 This is a schematic diagram of a flexible screen folding electronic terminal using the third embodiment of the hinge of this utility model, viewed from the back in a flattened state. Detailed Implementation

[0037] Example 1, referring to Figures 1-10 The hinge of the flexible screen folding electronic terminal provided by this utility model includes a left connecting arm 11 and a right connecting arm 12, as well as a left sliding frame 21 and a right sliding frame 22. The left connecting arm 11 and the right connecting arm 12 are rotatably mounted on both sides of a central support 200, which is fixed in the middle shell of the flexible screen folding electronic terminal. The flexible screen folding electronic terminal includes a left shell 201, a right shell 202, a flexible screen 300, and the hinge. The left shell 201 and the right shell 202 contain flexible screen support plates. The flexible screen 300 is disposed on the inner side of the flexible screen folding electronic terminal and is connected to the left shell 201 and the right shell 202 respectively. The left shell 201 and the right shell 202 are connected to the hinge of this utility model, enabling the flexible screen to be folded and flattened. The left sliding bracket 21 and the right sliding bracket 22 are respectively provided with parts that connect to the left housing 201 and the right housing 202, such as screw connection parts 210 and 220, which are connected to the left housing 201 and the right housing 202.

[0038] The left sliding frame 21 and the right sliding frame 22 are slidably connected to the left connecting arm 11 and the right connecting arm 12, respectively. The left sliding frame 21 and the right sliding frame 22 are respectively provided with slide rails 211 and 221 that cooperate with the left connecting arm 11 and the right connecting arm 12. The left sliding frame 21 and the right sliding frame 22 can slide along the rotation axis perpendicular to the left connecting arm 11 and the rotation axis perpendicular to the right connecting arm 12, respectively, when the flexible screen folding electronic terminal is opened and folded. The reference numerals 110 and 120 are the axes of the left connecting arm 11 and the right connecting arm 12, respectively.

[0039] The hinge has elastic mechanisms on the left and right sides as elastic top sliding frame mechanisms. When the flexible screen folding electronic terminal is in the flattened state, the elastic top sliding frame mechanisms on the left and right sides press the left sliding frame 21 and the right sliding frame 22 away from the central support 200, respectively. This causes the left shell 201 and the right shell 202 to move away from each other, thus tensioning the flexible screen and giving it a certain prestress. This provides better reaction force for touch operation, making it less likely for the operator to feel the unsupported part on the back of the flexible screen, thereby improving the touch operation experience.

[0040] The hinge is also provided with a left push-pull link 41 and a right push-pull link 42. The left push-pull link 41 and the right push-pull link 42 are rotatably installed on both sides of the central support 200. The left sliding frame 21 and the right sliding frame 22 are respectively movably connected to the second end of the left push-pull link 41 and the right push-pull link 42. The connection structure of the movable connection adopts the matching relationship of the waist-shaped hole 24 and the shaft 43. The left sliding frame 21 and the right sliding frame 22 are respectively provided with the waist-shaped hole 24, which can give full play to the tensioning effect of the elastic top sliding frame mechanism on the flexible screen 300. The width of the waist-shaped hole 24 of the left sliding frame 21 and the right sliding frame 22 matches the diameter of the shaft 43, and the length direction of the waist-shaped hole 24 is consistent with the sliding direction of the left sliding frame 21 and the right sliding frame 22, respectively. The left push-pull link 41 and the right push-pull link 42 are connected to the middle support 200 through a virtual center rotation connection structure 40 composed of an arc slider and an arc guide groove. The rotation center is located above the support surface height of the flexible screen 300 when the flexible screen folding electronic terminal is unfolded.

[0041] In this embodiment, the mechanism of the elastic top sliding frame is set between the left push-pull link 41 and the left sliding frame 21 and between the right push-pull link 42 and the right sliding frame 22. It can not only tension the flexible screen 300, but also eliminate the gap between the parts from the middle support 200 to the left sliding frame 21 and the right sliding frame 22, reduce shaking, and improve quality.

[0042] The left push-pull link 41 and the right push-pull link 42 are respectively provided with cams 6, which act on the elastic mechanism when the left push-pull link 41 and the right push-pull link 42 rotate.

[0043] In this embodiment, the second ends of the left push-pull link 41 and the right push-pull link 42 are provided with the cam 6, so that the cam 6 rotates synchronously with the push-pull link connected to it about the rotation axis of the second end of the push-pull link (i.e., the shaft 43). The left sliding frame 21 and the right sliding frame 22 are provided with accommodating portions 211 and 221 of the elastic mechanism. The accommodating portions are provided with elastic mechanism action portions 23 corresponding to the cam surface. The elastic mechanism is located between the action portion 23 and the cam surface.

[0044] like Figure 6-9 As shown, the elastic mechanism can employ elastic elements, including wire spring 3b, spring sheet 3a, disc spring 3d, and rubber block 3c. The wire spring can be a compression spring or a torsion spring. Alternatively, the elastic mechanism can also be a mechanism with elastic elements, such as an elastic arm.

[0045] The left connecting arm 11 and the right connecting arm 12 are connected by a synchronous reverse rotation connection structure 10, which can be a gear meshing connection structure, so that the housings 201 and 202 on both sides rotate synchronously in opposite directions.

[0046] The left sliding frame 21 and the left connecting arm 11 are movably connected to the left movable support plate 51 in the middle of the flexible screen, and the right sliding frame 22 and the right connecting arm 12 are movably connected to the right movable support plate 52 in the middle of the flexible screen. When the flexible screen folding electronic terminal is unfolded, the left movable support plate 51 and the right movable support plate 52 in the middle of the flexible screen rotate to the position supporting the flexible screen 300, as shown below. Figure 3 As shown, when the flexible screen folding electronic terminal is folded, it rotates at a greater angle than the left shell 201 and the right shell 202, thus creating a clearance space for the central bulge portion 301 when the flexible screen is folded.

[0047] Example 2, refer to Figures 11-14 Please also refer to Figures 1-10 .

[0048] In this embodiment, the mechanism of the elastic top sliding frame is disposed between the left connecting arm 11 and the left sliding frame 21, and between the right connecting arm 12 and the right sliding frame 22. The left sliding frame 21 and the right sliding frame 22 are provided with receiving portions 211 and 221 of the mechanism of the elastic top sliding frame. The left sliding frame 21 and the right sliding frame 22 are respectively provided with rearward-opening portions 213 and 223, and the slide rails 212 and 222 and the receiving portions 211 and 221 are disposed at the open portions 213 and 223. The receiving portions 211 and 221 are provided with corresponding action portions at the ends 13 of the connecting arms. The mechanism of the elastic top sliding frame is located between the action portions and the ends 13 of the connecting arms, which not only tensions the flexible screen but also eliminates the gap between the parts from the central support 200 to the sliding frame, reducing swaying and improving quality.

[0049] The hinge is also provided with a left push-pull link 41 and a right push-pull link 42. The left push-pull link 41 and the right push-pull link 42 are rotatably installed on both sides of the central support 200. The left sliding frame 21 and the right sliding frame 22 are respectively movably connected to the second end of the left push-pull link 41 and the right push-pull link 42. The connection structure of the movable connection adopts the matching relationship of the waist-shaped hole 24 and the shaft 43. The left sliding frame 21 and the right sliding frame 22 are respectively provided with the waist-shaped hole 24, which can give full play to the tensioning effect of the elastic top sliding frame mechanism on the flexible screen 300. The width of the waist-shaped hole 24 of the left sliding frame 21 and the right sliding frame 22 matches the diameter of the shaft 43, and the length direction of the waist-shaped hole 24 is consistent with the sliding direction of the left sliding frame 21 and the right sliding frame 22, respectively. The left push-pull link 41 and the right push-pull link 42 are connected to the central support 200 through a virtual center rotation connection structure composed of an arc slider and an arc guide groove. The rotation center is located above the height of the support surface of the flexible screen when the flexible screen folding electronic terminal is unfolded.

[0050] like Figure 12 , 13 In this embodiment, the elastic mechanism employs a torsion spring 3e and a compression spring 3f. When configured as a compression spring, spring mounting posts can be provided at the ends of the left connecting arm 11 and the right connecting arm 12, or at the actuating part 23. When configured as a torsion spring, the torsion spring can be mounted on the actuating part 23 (e.g., mounting post 23e), with the two torsion spring legs engaging with the ends 13 of the connecting arms.

[0051] The other parts of this utility model are the same as those in Embodiment 1.

[0052] Example 3, referring to Figures 15-19 Please also refer to Figures 1-14 .

[0053] In this embodiment, the central support includes a fixed support 203 and a left movable support 2031 and a right movable support 2032 located to the left and right of the fixed support, respectively. The left movable support 2031 and the right movable support 2032 are slidably connected to the fixed support 203, and the left movable support 2031 and the right movable support 2032 are respectively supported on the fixed support 203. The sliding paths of the left movable support 2031 and the right movable support 2032 are perpendicular to the rotation axis of the left connecting arm 11 and the rotation axis of the right connecting arm 12, respectively. The side connecting arms 12 are rotatably mounted on the left movable support 2031 and the right movable support 2032, respectively. Their rotatable connection structure is the same as that in Embodiment 1. Reference numerals 110 and 120 are the shafts of the left connecting arm 11 and the right connecting arm 12, respectively. The first ends of the left push-pull linkage 41 and the right push-pull linkage 42 are rotatably mounted on the left movable support 2031 and the right movable support 2032, respectively, and are connected by a virtual center rotational connection structure 40 formed by an arc-shaped slider and an arc-shaped guide groove. The rotation center is located above the height of the support surface of the flexible screen when the flexible screen folding electronic terminal is unfolded. Reference numerals 2033 and 2034 are cover plates fixed to the left movable support 2031 and the right movable support 2032, respectively. They can also be used to limit the first ends of the left push-pull linkage 41 and the right push-pull linkage 42. Cover plates 2033 and 2034 can be connected to the left movable support 2031 and the right movable support 2032, respectively, by screws.

[0054] The left sliding frame 21 and the right sliding frame 22 are movably connected to the second ends of the left push-pull link 41 and the right push-pull link 42, respectively. The connection structure of the movable connection can be a rotating connection structure with a hole and a shaft 45.

[0055] A mechanism for the elastic top sliding bracket is provided between the fixed support 203 and the left movable support 2031, and between the fixed support 203 and the right movable support 2032. This mechanism slides by pushing the movable support, which in turn pushes the push-pull linkage and the sliding bracket as a whole. Accommodation spaces 204 for the mechanism of the elastic top sliding bracket can be provided on the left and right sides of the fixed support 203, or on the left movable support 2031 and the right push-pull linkage 42. The fixed support 203 is fixed within the middle shell of the flexible screen folding electronic terminal.

[0056] The mechanism of the elastic top sliding frame uses an elastic element; in this embodiment, a 3g spring sheet is used.

[0057] The fixed support 203 is respectively provided with the guide rail 2051 and the limiting structure of the left movable support 2031 and the guide rail 2052 and the limiting structure of the right movable support 2032. The limiting structure includes a rear support and limiting structure 2061, a lower support and limiting structure 2062 and a front limiting structure 2063.

[0058] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0059] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A flexible screen folding electronic terminal, comprising a left shell, a right shell, a flexible screen, and a hinge; the flexible screen is disposed inside the flexible screen folding electronic terminal and connected to the left shell and the right shell respectively, the left shell, the right shell, and the hinge are connected to enable folding and unfolding of the flexible screen; characterized in that, The flexible screen folding electronic terminal is also equipped with an elastic mechanism that can stretch the flexible screen to both sides when the flexible screen folding electronic terminal is unfolded.

2. A hinge for a flexible folding electronic terminal, comprising a left connecting arm and a right connecting arm, as well as a left sliding frame and a right sliding frame, wherein the left and right connecting arms are rotatably mounted on both sides of a central support, and the left and right sliding frames are slidably connected to the left and right connecting arms respectively, and the left and right sliding frames can slide along rotation axes perpendicular to the left and right connecting arms respectively when the flexible folding electronic terminal is opened and folded; the left and right sliding frames are respectively provided with connection points to the left and right shells of the flexible folding electronic terminal; characterized in that... The hinge is provided with elastic top sliding frame mechanisms on the left and right sides as the elastic mechanism described in claim 1. When the flexible screen folding electronic terminal is in a flattened state, the elastic top sliding frame mechanisms on the left and right sides respectively press the left sliding frame and the right sliding frame away from the central support.

3. The hinge of a flexible screen folding electronic terminal as described in claim 2, characterized in that, The mechanism of the elastic top sliding frame is located between the left connecting arm and the left sliding frame, and between the right connecting arm and the right sliding frame.

4. The hinge of a flexible screen folding electronic terminal as described in claim 2, characterized in that, The hinge is also provided with a left push-pull link and a right push-pull link, which are rotatably mounted on both sides of the central support. The left sliding frame and the right sliding frame are movably connected to the second end of the left push-pull link and the right push-pull link, respectively. The connection structure of the movable connection adopts the fit of an oblong hole and a shaft. The oblong hole is provided on the left sliding frame and the right sliding frame. The length direction of the oblong hole of the left sliding frame and the right sliding frame is consistent with the sliding direction of the left sliding frame and the right sliding frame, respectively.

5. The hinge of a flexible screen folding electronic terminal as described in claim 4, characterized in that, The mechanism of the elastic top sliding frame is set between the left push-pull link and the left sliding frame, and between the right push-pull link and the right sliding frame.

6. The hinge of a flexible screen folding electronic terminal as described in claim 5, characterized in that, The left and right push-pull links are each equipped with a cam, which acts on the elastic mechanism when the left and right push-pull links rotate.

7. The hinge of a flexible screen folding electronic terminal as described in claim 2, characterized in that, The elastic mechanism employs an elastic element, or is a mechanism consisting of an elastic element and a mechanical connection structure. The range of elastic elements includes wire springs, sheet springs, disc springs, and rubber blocks. The wire spring is configured as a compression spring or a torsion spring.

8. The hinge of a flexible screen folding electronic terminal as described in claim 6, characterized in that, The second ends of the left and right push-pull linkages are provided with cams, so that the cams rotate synchronously with the push-pull linkages connected to them about the rotation axis of the second end of the push-pull linkage. The left and right sliding frames are provided with receiving parts of the elastic mechanism. The receiving parts are provided with the elastic mechanism action parts corresponding to the cam surface. The elastic mechanism is located between the action parts and the cam surface.

9. The hinge of a flexible screen folding electronic terminal as described in claim 4, characterized in that, The central support includes a fixed support and a left movable support and a right movable support located to the left and right of the fixed support, respectively. The left movable support and the right movable support are slidably connected to the fixed support. The sliding paths of the left movable support and the right movable support are perpendicular to the rotation axis of the left connecting arm and the rotation axis of the right connecting arm, respectively. The left connecting arm and the right connecting arm are rotatably mounted on the left movable support and the right movable support, respectively. The left push-pull linkage and the right push-pull linkage are rotatably mounted on the left movable support and the right movable support, respectively. The mechanism of the elastic top sliding frame is located between the fixed support and the left movable support, and between the fixed support and the right movable support.

10. The hinge of a flexible screen folding electronic terminal as described in claim 4, characterized in that, The first end and the middle support of the push-pull linkage are connected by a virtual circular center rotation connection structure of a circular arc slider and a circular arc guide groove.

11. The hinge of a flexible screen folding electronic terminal as described in claim 2, characterized in that, The left and right connecting arms are connected by a synchronous reverse rotation connection structure.

12. The hinge of a flexible screen folding electronic terminal as described in claim 2, characterized in that, During the rotation of the flexible screen foldable electronic terminal from folding to unfolding, the left sliding frame and the right sliding frame slide towards the rotation axis of the left connecting arm and the rotation axis of the right connecting arm, respectively. During the rotation of the flexible screen foldable electronic terminal from unfolding to folding, the left sliding frame and the right sliding frame slide away from the rotation axis of the left connecting arm and the rotation axis of the right connecting arm, respectively.

13. The hinge of a flexible screen folding electronic terminal as described in claim 2, characterized in that, The left sliding frame and the left connecting arm are movably connected to the left movable support plate in the middle of the flexible screen, and the right sliding frame and the right connecting arm are movably connected to the right movable support plate in the middle of the flexible screen.

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