Rotating mechanism and foldable electronic device

Abstract

Provided in the embodiments of the present application are a rotating mechanism and a foldable electronic device, which are used for realizing the bending of a flexible screen in a foldable electronic device. Provided in the embodiments of the present application is a rotating mechanism, comprising a main shaft, a first rotating shaft assembly, a second rotating shaft assembly and supporting door panels. The first rotating shaft assembly comprises a first rotating member and a first fixing frame, with a first end of the first rotating member being rotationally connected to the main shaft, and a second end of the first rotating member being movably connected to the first fixing frame. The second rotating shaft assembly comprises a second rotating member and a second fixing frame, with a first end of the second rotating member being rotationally connected to the main shaft, and a second end of the second rotating member being movably connected to the second fixing frame. A first supporting plate is connected to the first fixing frame, a second supporting plate is rotationally connected to the first rotating member, a third supporting plate is rotationally connected to the second rotating member, and a fourth supporting plate is connected to the second fixing frame. With the above arrangement, the rotating mechanism enables the flexible screen to switch between an unfolded state and a folded state.

Description

Rotating mechanism and folding electronic device

[0001] This application claims priority to the Chinese Patent Application No. 202411247918.6, filed on September 5, 2024, and entitled "Rotating mechanism and folding electronic device", the content of which is incorporated herein by reference in its entirety;

[0002] This application claims priority to the Chinese Patent Application No. 202411523263.0, filed on October 28, 2024, and entitled "Rotating mechanism and folding electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] Embodiments of the present application relate to the technical field of foldable electronic products, and in particular to a rotating mechanism and a folding electronic device. BACKGROUND

[0004] With the continuous development of display technology, folding display terminals are gradually becoming a development trend of future mobile electronic products.

[0005] In order to realize folding of an electronic device, a folding electronic device can at least include a flexible screen. In an unfolded state, the flexible screen is in a flat state, so that the electronic device can obtain a larger display area and improve the viewing effect. In a folded state, the flexible screen is in a folded state, so that the electronic device can obtain a smaller volume and be convenient for users to carry. In the related art, the folding electronic device further includes a shell device carrying the flexible screen, and at least part of the structure in the shell device needs to realize the bending function of the flexible screen. SUMMARY

[0006] Embodiments of the present application provide a rotating mechanism and a folding electronic device for realizing the bending of a flexible screen in the folding electronic device.

[0007] To achieve the above-mentioned purpose, embodiments of the present application provide the following solutions:

[0008] In one aspect, a rotating mechanism is provided, including a main shaft, a first rotating shaft assembly, a second rotating shaft assembly, and a support door plate.

[0009] The main shaft extends along a first direction. The first rotating shaft assembly includes a first rotating member and a first fixed frame, a first end of the first rotating member is rotationally connected with the main shaft, a second end of the first rotating member is movably connected with the first fixed frame, and an extension direction of the first fixed frame is parallel to the first direction. The second rotating shaft assembly includes a second rotating member and a second fixed frame, a first end of the second rotating member is rotationally connected with the main shaft, a second end of the second rotating member is movably connected with the second fixed frame, and an extension direction of the second fixed frame is parallel to the first direction.

[0010] The support door plate comprises a first support plate, a second support plate, a third support plate and a fourth support plate, the first support plate is connected with the first fixed frame, the second support plate is rotationally connected with the first rotating member, the second support plate is a first axis relative to the rotating axis of the first rotating member, the third support plate is rotationally connected with the second rotating member, the third support plate is a second axis relative to the rotating axis of the second rotating member, and the fourth support plate is connected with the second fixed frame.

[0011] When the rotating mechanism is in the unfolded state: the first support plate, the second support plate, the third support plate and the fourth support plate are arranged in the second direction in turn, the second end of the first rotating member, the first end of the first rotating member, the first end of the second rotating member and the second end of the second rotating member are arranged in the second direction in turn; the first support plate, the second support plate, the third support plate and the fourth support plate jointly constitute a support plane; the first axis and the second axis both intersect the second direction, and the first axis and the second axis both intersect the direction perpendicular to the support plane; the second direction is perpendicular to the first direction.

[0012] In the process of converting the rotating mechanism from the unfolded state to the folded state, the first support plate, the second support plate, the third support plate and the fourth support plate are all rotated relative to the main shaft.

[0013] When the rotating mechanism is in the folded state: the support door plate and the main shaft jointly constitute a containing space.

[0014] In summary, when the rotating mechanism is in the unfolded state, the support door plate can support the flexible screen and improve the flatness of the flexible screen. Since the first support plate can be connected with the first fixed frame, the second support plate can be rotationally connected with the first rotating member, the third support plate can be rotationally connected with the second rotating member, and the fourth support plate can be connected with the second fixed frame, the support door plate can be rotated relative to the main shaft in the process of converting the rotating mechanism from the unfolded state to the folded state. When the rotating mechanism is in the folded state, the support door plate can jointly constitute a containing space with the main shaft to accommodate the bent part of the flexible screen. Through the above arrangement, the rotating mechanism can realize the conversion of the flexible screen between the unfolded state and the folded state.

[0015] In some embodiments, the first rotating member and the second support plate are rotationally connected through a first matching shaft and a first matching hole; the first rotating member comprises the first matching shaft, and the second support plate comprises the first matching hole, or the second support plate comprises the first matching shaft, and the first rotating member comprises the first matching hole. The second rotating member and the third support plate are rotationally connected through a second matching shaft and a second matching hole; the second rotating member comprises the second matching shaft, and the third support plate comprises the second matching hole, or the third support plate comprises the second matching shaft, and the second rotating member comprises the second matching hole. Through the above arrangement, in the process of converting the rotating mechanism between the unfolded state and the folded state, the first rotating member can drive the second support plate to rotate relative to the main shaft while the first rotating member rotates relative to the main shaft, and the second rotating member can drive the third support plate to rotate relative to the main shaft while the second rotating member rotates relative to the main shaft.

[0016] In some embodiments, the extension direction of the first matching shaft and the extension direction of the second matching shaft are both parallel to the first direction. Through the above arrangement, it is beneficial to reduce the occupied space of the first matching shaft and the second matching shaft in the second direction and the third direction, and it is beneficial to reduce the size of the rotating mechanism.

[0017] In some embodiments, the rotation axis of the first rotating member relative to the main shaft is a third axis, and the rotation axis of the second rotating member relative to the main shaft is a fourth axis. In the process of converting the rotating mechanism from the unfolded state to the folded state, the first rotating member rotates relative to the third axis in a first rotating direction, and the first matching shaft rotates relative to the third axis in the first rotating direction; the second rotating member rotates relative to the fourth axis in a second rotating direction, and the second matching shaft rotates relative to the fourth axis in the second rotating direction. In the process of converting the rotating mechanism from the folded state to the unfolded state, the first rotating member rotates relative to the third axis in a third rotating direction, and the first matching shaft rotates relative to the third axis in the third rotating direction, the third rotating direction being opposite to the first rotating direction; the second rotating member rotates relative to the fourth axis in a fourth rotating direction, and the second matching shaft rotates relative to the fourth axis in the fourth rotating direction, the fourth rotating direction being opposite to the second rotating direction. Through the above arrangement, the rotating directions of the first rotating member and the first matching shaft relative to the third axis are the same, and the rotating directions of the second rotating member and the second matching shaft relative to the fourth axis are the same.

[0018] In some embodiments, the third end of the first rotating member and the fourth end of the first rotating member are arranged along the first direction, and the third end of the second rotating member and the fourth end of the second rotating member are arranged along the first direction. When the rotating mechanism is in the unfolded state: the orthographic projection of the third end of the first rotating member on the first reference surface, the orthographic projection of the first cooperating shaft on the first reference surface, and the orthographic projection of the fourth end of the first rotating member on the first reference surface are sequentially arranged along the first direction. The orthographic projection of the third end of the second rotating member on the first reference surface, the orthographic projection of the second cooperating shaft on the first reference surface, and the orthographic projection of the fourth end of the second rotating member on the first reference surface are sequentially arranged along the first direction. The first reference surface is perpendicular to the support plane, and the first reference surface is also perpendicular to the second direction. Through the above arrangement, it is beneficial to further avoid the occupation of the first cooperating shaft and the second cooperating shaft in the first direction being too large, thereby facilitating the reduction of the size of the rotating mechanism in the first direction.

[0019] In some embodiments, when the rotating mechanism is in the unfolded state: the orthographic projection of the first end of the first rotating member on the second reference surface at least partially overlaps with the orthographic projection of the first cooperating shaft on the second reference surface, and the orthographic projection of the first end of the second rotating member on the second reference surface at least partially overlaps with the orthographic projection of the second cooperating shaft on the second reference surface. The second reference surface is perpendicular to the support plane, and the second reference surface is also perpendicular to the first direction. Through the above arrangement, it is beneficial to further avoid the occupation of the first cooperating shaft and the second cooperating shaft in the second direction being too large, thereby facilitating the reduction of the size of the rotating mechanism in the second direction.

[0020] In some embodiments, when the rotating mechanism is in the unfolded state: in the second direction, the first end of the first support plate, the second end of the first support plate, the first end of the second support plate, the second end of the second support plate, the first end of the third support plate, the second end of the third support plate, the first end of the fourth support plate, and the second end of the fourth support plate are sequentially arranged; the distance between the second end of the second support plate and the first end of the third support plate in the second direction is a first distance. When the rotating mechanism is in the folded state: in the second direction, the distance between the first end of the first support plate and the second end of the fourth support plate is greater than the distance between the second end of the first support plate and the first end of the fourth support plate, in the second direction, the distance between the first end of the second support plate and the second end of the third support plate is greater than the distance between the second end of the second support plate and the first end of the third support plate, the distance between the second end of the second support plate and the first end of the third support plate in the second direction is a second distance, and the second distance is greater than the first distance. Through the above arrangement, the first support plate, the second support plate, the third support plate, the fourth support plate, and the main shaft can make the flexible screen bend into a water drop type or an approximate water drop type, avoid excessive extrusion of the rotating mechanism on the flexible screen, thereby reducing the stress on the flexible screen and improving the reliability of the flexible screen.

[0021] In some embodiments, the second end of the second support plate comprises a first matching surface, the first end of the first rotating member comprises a first limiting surface; the first end of the third support plate comprises a second matching surface, the first end of the second rotating member comprises a second limiting surface. When the rotating mechanism is in the unfolded state: the first limiting surface and the first matching surface are in contact, and the second limiting surface and the second matching surface are in contact. Through the above arrangement, when the rotating mechanism is in the unfolded state, the second support plate is prevented from continuing to rotate relative to the first rotating member, thereby preventing the first end of the second support plate from being raised towards the flexible screen, which is conducive to improving the supporting effect of the second support plate on the flexible screen; the third support plate is prevented from continuing to rotate relative to the second rotating member, thereby preventing the second end of the third support plate from being raised towards the flexible screen, which is conducive to improving the supporting effect of the third support plate on the flexible screen.

[0022] In some embodiments, the first rotating member comprises a first limiting groove, the first limiting groove being located between the first end of the first rotating member and the second end of the second rotating member, the second rotating member comprises a second limiting groove, the first limiting groove being located between the first end of the first rotating member and the second end of the second rotating member; the first end of the second support plate comprises a third matching surface, the second end of the third support plate comprises a fourth matching surface. When the rotating mechanism is in the folded state, the third matching surface is in contact with the groove bottom of the first limiting groove, and the fourth matching surface is in contact with the groove bottom of the second limiting groove. Through the above arrangement, when the rotating mechanism is in the folded state, the second support plate is prevented from continuing to rotate relative to the first rotating member, thereby preventing the second end of the second support plate from rotating towards the flexible screen, which is conducive to preventing the second support plate from excessively pressing the flexible screen. The third support plate is prevented from continuing to rotate relative to the second rotating member, thereby preventing the first end of the third support plate from rotating towards the flexible screen, which is conducive to preventing the third support plate from excessively pressing the flexible screen.

[0023] In some embodiments, the main shaft comprises a main shaft body and a first protrusion and a second protrusion arranged on the main shaft body, the first protrusion and the second protrusion are arranged in the second direction, the first protrusion comprises a first sub-face and a second sub-face, the second protrusion comprises a third sub-face and a fourth sub-face, the first sub-face and the third sub-face are arranged in the second direction, the second sub-face and the fourth sub-face are located between the first sub-face and the third sub-face, and the second sub-face, the fourth sub-face and the main shaft body jointly form a groove. When the rotating mechanism is in the unfolded state, the first end of the second support plate is in contact with the first sub-face, and the second end of the third support plate is in contact with the third sub-face. When the rotating mechanism is in the folded state, the second end of the second support plate is in contact with the second sub-face, and the first end of the third support plate is in contact with the fourth sub-face. Through the above arrangement, when the rotating mechanism is in the unfolded state, the second support plate and the third support plate are prevented from continuing to rotate relative to the main shaft, which is conducive to improving the supporting effect of the second support plate and the third support plate on the flexible screen. Through the above arrangement, when the rotating mechanism is in the folded state, the second support plate and the third support plate are prevented from continuing to rotate relative to the main shaft, thereby preventing the second support plate and the third support plate from excessively pressing the flexible screen.

[0024] In some embodiments, the second support plate and the main shaft are connected through a first pin shaft and a first guide slot, the extension direction of the first pin shaft is parallel to the first direction; wherein the main shaft comprises the first pin shaft, and the second support plate comprises the first guide slot, or the main shaft comprises the first guide slot, and the second support plate comprises the first pin shaft. The third support plate and the main shaft are connected through a second pin shaft and a second guide slot, the extension direction of the second pin shaft is parallel to the first direction; wherein the main shaft comprises the second pin shaft, and the third support plate comprises the second guide slot, or the main shaft comprises the second guide slot, and the third support plate comprises the second pin shaft. Through the above arrangement, when the first pin shaft moves in the first guide slot, the second support plate can slide relative to the main shaft; similarly, when the second pin shaft moves in the second guide slot, the third support plate can slide relative to the main shaft.

[0025] In some embodiments, when the rotating mechanism is in the unfolded state: in the second direction, the orthographic projection of the first end of the first guide slot on the support plane, the orthographic projection of the second end of the first guide slot on the support plane, the orthographic projection of the second end of the second guide slot on the support plane and the orthographic projection of the first end of the second guide slot on the support plane are arranged in sequence. The distance between the first end of the first guide slot and the support plane is less than the distance between the second end of the first guide slot and the support plane, and the distance between the first end of the second guide slot and the support plane is less than the distance between the second end of the second guide slot and the support plane. Through the above arrangement, the first end of the first guide slot points to the direction of the second end of the first guide slot, which can be inclined in the direction away from the support plane, and the first end of the second guide slot points to the direction of the second end of the second guide slot, which can be inclined in the direction close to the support plane.

[0026] In some embodiments, during the process of converting the rotating mechanism from the unfolded state to the folded state, the first pin shaft moves relative to the first guide slot from the first end of the first guide slot to the second end of the first guide slot, and the second pin shaft moves relative to the second guide slot from the first end of the second guide slot to the second end of the second guide slot. During the process of converting the rotating mechanism from the folded state to the unfolded state, the first pin shaft moves relative to the first guide slot from the second end of the first guide slot to the first end of the first guide slot, and the second pin shaft moves relative to the second guide slot from the second end of the second guide slot to the first end of the second guide slot. Through the above arrangement, when the rotating mechanism is in the unfolded state, the second support plate and the third support plate are prevented from continuing to rotate relative to the main shaft, which is conducive to improving the supporting effect of the second support plate and the third support plate on the flexible screen. Through the above arrangement, when the rotating mechanism is in the folded state, the second support plate and the third support plate are prevented from continuing to rotate relative to the main shaft, thereby preventing the second support plate and the third support plate from excessively pressing the flexible screen.

[0027] In some embodiments, the first end of the first rotating member and the main shaft are rotatably connected through a first arc-shaped sliding block and a first arc-shaped sliding slot, wherein the first end of the first rotating member comprises the first arc-shaped sliding block, and the main shaft comprises the first arc-shaped sliding slot; or the first end of the first rotating member comprises the first arc-shaped sliding slot, and the main shaft comprises the first arc-shaped sliding block. The first end of the second rotating member and the main shaft are rotatably connected through a second arc-shaped sliding block and a second arc-shaped sliding slot, wherein the first end of the second rotating member comprises the second arc-shaped sliding block, and the main shaft comprises the second arc-shaped sliding slot; or the first end of the second rotating member comprises the second arc-shaped sliding slot, and the main shaft comprises the second arc-shaped sliding block. Through the above arrangement, the first rotating member and the second rotating member are rotatably connected to the main shaft through a virtual shaft.

[0028] In some embodiments, the second end of the first rotating member and the first fixed frame are rotatably connected through a first connecting shaft, and the second end of the second rotating member and the second fixed frame are rotatably connected through a second connecting shaft. When the rotating mechanism is in the unfolded state, the first connecting shaft and the second connecting shaft both intersect the second direction, and the first connecting shaft and the second connecting shaft both intersect the direction perpendicular to the support plane. Through the above arrangement, the first rotating member and the first fixed frame, and the second rotating member and the second fixed frame are rotatably connected through a physical shaft.

[0029] In some embodiments, the first fixed frame and the first support plate are rotationally connected through a third arc-shaped sliding block and a third arc-shaped sliding groove, wherein the first fixed frame comprises the third arc-shaped sliding block, the first support plate comprises the third arc-shaped sliding groove, or the first fixed frame comprises the third arc-shaped sliding groove, and the first support plate comprises the third arc-shaped sliding block. The second fixed frame and the fourth support plate are rotationally connected through a fourth arc-shaped sliding block and a fourth arc-shaped sliding groove, wherein the second fixed frame comprises the fourth arc-shaped sliding block, the fourth support plate comprises the fourth arc-shaped sliding groove, or the second fixed frame comprises the fourth arc-shaped sliding groove, and the fourth support plate comprises the fourth arc-shaped sliding block. Through the above arrangement, the first support plate and the first fixed frame, and the fourth support plate and the second fixed frame are rotationally connected through a solid shaft.

[0030] In some embodiments, the first rotating member and the first support plate are slidingly connected through a third connecting shaft and a third guide groove, wherein the first rotating member comprises the third connecting shaft, the first support plate comprises the third guide groove, or the first rotating member comprises the third guide groove, and the first support plate comprises the third connecting shaft. The second rotating member and the fourth support plate are slidingly connected through a fourth connecting shaft and a fourth guide groove, wherein the second rotating member comprises the fourth connecting shaft, the fourth support plate comprises the fourth guide groove, or the second rotating member comprises the fourth guide groove, and the fourth support plate comprises the fourth connecting shaft. Through the above arrangement, the first support plate and the first rotating member, and the fourth support plate and the second rotating member are slidingly connected.

[0031] In some embodiments, when the rotating mechanism is in the unfolded state: in the second direction, the distance between the first end of the third guide groove and the main shaft is greater than the distance between the second end of the third guide groove and the main shaft, and in the direction perpendicular to the support plane, the distance between the first end of the third guide groove and the support plane is greater than the distance between the second end of the third guide groove and the support plane. In the second direction, the distance between the first end of the fourth guide groove and the main shaft is greater than the distance between the second end of the fourth guide groove and the main shaft, and in the direction perpendicular to the support plane, the distance between the first end of the fourth guide groove and the support plane is greater than the distance between the second end of the fourth guide groove and the support plane. Through the above arrangement, in the second direction, the third guide groove can be inclined towards the direction close to the support plane. In the second direction, the fourth guide groove can be inclined away from the support plane.

[0032] In some embodiments, during the process of converting the rotating mechanism from the unfolded state to the folded state, the third connecting shaft moves relative to the third guide slot in a direction from the first end of the third guide slot to the second end of the third guide slot, and the fourth connecting shaft moves relative to the fourth guide slot in a direction from the first end of the fourth guide slot to the second end of the fourth guide slot. During the process of converting the rotating mechanism from the folded state to the unfolded state, the third connecting shaft moves relative to the third guide slot in a direction from the second end of the third guide slot to the first end of the third guide slot, and the fourth connecting shaft moves relative to the fourth guide slot in a direction from the second end of the fourth guide slot to the first end of the fourth guide slot. Through the above arrangement, when the rotating mechanism is in the unfolded state, the first support plate and the fourth support plate are prevented from continuing to rotate, which is conducive to improving the supporting effect of the first support plate and the fourth support plate on the flexible screen. Through the above arrangement, when the rotating mechanism is in the folded state, the first support plate and the fourth support plate are prevented from continuing to rotate, and thus the first support plate and the fourth support plate are prevented from excessively pressing the flexible screen.

[0033] In some embodiments, the first rotating shaft assembly further comprises a first swing arm, a first end of the first swing arm is rotationally connected with the main shaft, the first swing arm is parallel to the first direction relative to the rotation axis of the main shaft, a second end of the first swing arm is slidably connected with the first fixed frame, and the sliding direction of the first swing arm relative to the first fixed frame intersects with the extension direction of the first fixed frame. The second rotating shaft assembly further comprises a second swing arm, a first end of the second swing arm is rotationally connected with the main shaft, the second swing arm is parallel to the first direction relative to the rotation axis of the main shaft, a second end of the second swing arm is slidably connected with the second fixed frame, and the sliding direction of the second swing arm relative to the second fixed frame intersects with the extension direction of the second fixed frame. Through the above arrangement, the first swing arm can move relative to the first fixed frame, and the second swing arm can move relative to the second fixed frame.

[0034] In some embodiments, the first swing arm and the first support plate are slidably connected through a third matching shaft and a third matching slot, and the extension direction of the third matching shaft is parallel to the first direction; wherein the first swing arm comprises the third matching shaft, the first support plate comprises the third matching slot, or the first swing arm comprises the third matching slot, and the first support plate comprises the third matching shaft. The second swing arm and the fourth support plate are slidably connected through a fourth matching shaft and a fourth matching slot, and the extension direction of the fourth matching shaft is parallel to the first direction; wherein the second swing arm comprises the fourth matching shaft, the fourth support plate comprises the fourth matching slot, or the second swing arm comprises the fourth matching slot, and the first support plate comprises the fourth matching shaft. Through the above arrangement, the first swing arm can move relative to the first support plate, and the second swing arm can move relative to the fourth support plate.

[0035] In some embodiments: in the direction perpendicular to the support plane, the third matching groove comprises a first surface and a second surface arranged in sequence, the second surface is between the first surface and the support plane, and the fourth matching groove comprises a third surface and a fourth surface arranged in sequence, the fourth surface is between the third surface and the support plane.

[0036] In the second direction, the distance between the first end of the first surface and the main shaft is greater than the distance between the second end of the first surface and the main shaft, and in the direction perpendicular to the support plane, the distance between the first end of the first surface and the support plane is greater than the distance between the second end of the first surface and the support plane. In the second direction, the distance between the first end of the third surface and the main shaft is greater than the distance between the second end of the third surface and the main shaft, and in the direction perpendicular to the support plane, the distance between the first end of the third surface and the support plane is greater than the distance between the second end of the third surface and the support plane. Through the above arrangement, the third matching groove can guide the third matching shaft during the conversion of the rotating mechanism between the unfolded state and the folded state, thereby limiting the relative movement between the first swing arm and the first support plate. Similarly, the fourth matching groove can guide the fourth matching shaft, thereby limiting the relative movement between the second swing arm and the second support plate.

[0037] On the other hand, a folding electronic device is provided, comprising: a flexible screen, a first structural member, a second structural member, and a rotating mechanism in any of the above embodiments. The first structural member and the second structural member are connected to the two sides of the rotating mechanism, the flexible screen is located on the same side of the first structural member and the second structural member, and is connected with the first structural member and the second structural member; when the folding electronic device is in the unfolded state, the support plane of the rotating mechanism is used to support the flexible screen; when the folding electronic device is in the folded state, the support door plate of the rotating mechanism and the main shaft jointly constitute a containing space, and part of the flexible screen is located in the containing space. The folding electronic device in the embodiments of the present application comprises the rotating mechanism in any of the above embodiments, and therefore has all the beneficial effects described above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0038] FIG. 1 is a structural diagram of a folding electronic device in an unfolded state according to an embodiment of the present application;

[0039] FIG. 2 is a structural diagram of a folding electronic device in a transition state between the unfolded state and the folded state according to an embodiment of the present application;

[0040] FIG. 3 is a structural diagram of a folding electronic device in a folded state according to an embodiment of the present application;

[0041] FIG. 4 is a structural diagram of a rotating mechanism in an unfolded state according to an embodiment of the present application;

[0042] Figure 5 is a structural diagram of a rotating mechanism provided by an embodiment of the present application in a state of conversion between an unfolded state and a folded state;

[0043] Figure 6 is a structural diagram of a rotating mechanism provided by an embodiment of the present application in a folded state;

[0044] Figure 7 is an exploded structural diagram of a rotating mechanism provided by an embodiment of the present application in an unfolded state;

[0045] Figure 8A is an exploded structural diagram of a rotating mechanism provided by an embodiment of the present application at M in Figure 7;

[0046] Figure 8B is an exploded structural diagram of a rotating mechanism provided by an embodiment of the present application at M in Figure 7 from another perspective;

[0047] Figure 9 is a structural diagram of a rotating mechanism provided by an embodiment of the present application at M in Figure 7 in a folded state;

[0048] Figure 10 is a sectional view of a rotating mechanism provided by an embodiment of the present application in Figure 9 along an A-A sectional plane in an unfolded state;

[0049] Figure 11 is a sectional view of a rotating mechanism provided by an embodiment of the present application in Figure 9 along an A-A sectional plane in a state of conversion between an unfolded state and a folded state;

[0050] Figure 12 is a sectional view of a rotating mechanism provided by an embodiment of the present application in Figure 9 along an A-A sectional plane in a folded state;

[0051] Figure 13 is an exploded structural diagram of a first rotating member, a second support plate, a main shaft, a third support plate and a second rotating member in a rotating mechanism provided by an embodiment of the present application;

[0052] Figure 14 is a structural diagram of a main shaft provided by an embodiment of the present application;

[0053] Figure 15 is an exploded structural diagram of a main shaft provided by an embodiment of the present application;

[0054] Figure 16 is a structural diagram of a main inner shaft provided by an embodiment of the present application;

[0055] Figure 17 is a structural diagram of a first rotating member and a second rotating member provided by an embodiment of the present application in an unfolded state;

[0056] Figure 18 is a structural diagram of a first rotating member and a second rotating member provided by an embodiment of the present application in an unfolded state from another perspective;

[0057] Figure 19 is a sectional view of a rotating mechanism provided by an embodiment of the present application in Figure 9 along a B-B sectional plane in an unfolded state;

[0058] Figure 20 is a sectional view of a rotating mechanism provided by an embodiment of the present application in Figure 9 along a B-B sectional plane in a state of conversion between an unfolded state and a folded state;

[0059] Fig. 21 is a sectional view along the section line B-B of the rotating mechanism in Fig. 9 in a folded state;

[0060] Fig. 22A is an assembly view of the structure between a first fixed frame and a first rotating member, a second fixed frame and a second rotating member according to an embodiment of the present application;

[0061] Fig. 22B is an exploded view of the structure between a first fixed frame and a first rotating member, a second fixed frame and a second rotating member according to an embodiment of the present application;

[0062] Fig. 23 is a structural view of a first fixed frame and a second fixed frame according to an embodiment of the present application;

[0063] Fig. 24 is a structural view of a second support plate and a third support plate according to an embodiment of the present application;

[0064] Fig. 25 is a front view of a second support plate and a third support plate in an unfolded state according to an embodiment of the present application;

[0065] Fig. 26 is a sectional view along the section line C-C of the rotating mechanism in Fig. 9 in an unfolded state;

[0066] Fig. 27 is a sectional view along the section line C-C of the rotating mechanism in Fig. 9 in a state of transition between the unfolded state and the folded state;

[0067] Fig. 28 is a sectional view along the section line C-C of the rotating mechanism in Fig. 9 in a folded state;

[0068] Fig. 29 is a structural view of another rotating mechanism in a folded state at M according to an embodiment of the present application;

[0069] Fig. 30 is an exploded view of a first rotating member, a second support plate, a main shaft, a third support plate and a second rotating member in another rotating mechanism according to an embodiment of the present application;

[0070] Fig. 31 is a structural view of another second support plate and a third support plate according to an embodiment of the present application;

[0071] Fig. 32 is a structural view of another main shaft according to an embodiment of the present application;

[0072] Fig. 33 is a structural view of another main inner shaft according to an embodiment of the present application;

[0073] Fig. 34 is a structural view of another main inner shaft according to an embodiment of the present application from another perspective;

[0074] Fig. 35 is a sectional view along the section line G-G of the rotating mechanism in Fig. 29 in an unfolded state;

[0075] Figure 36 is a sectional view along the section line G-G of the rotating mechanism in Figure 29 in a transition between the unfolded state and the folded state;

[0076] Figure 37 is a sectional view along the section line G-G of the rotating mechanism in Figure 29 in the folded state;

[0077] Figure 38 is an exploded view of the partial structure of the first rotating shaft assembly and the second rotating shaft assembly in a rotating mechanism according to an embodiment of the present application;

[0078] Figure 39 is a sectional view along the section line D-D of the rotating mechanism in Figure 9 in the unfolded state;

[0079] Figure 40 is a sectional view along the section line D-D of the rotating mechanism in Figure 9 in a transition between the unfolded state and the folded state;

[0080] Figure 41 is a sectional view along the section line D-D of the rotating mechanism in Figure 9 in the folded state;

[0081] Figure 42 is an exploded view of the structure of the first fixed frame, the first swing arm, the main shaft, the second swing arm and the second fixed frame in a rotating mechanism according to an embodiment of the present application;

[0082] Figure 43 is a sectional view along the section line E-E of the rotating mechanism in Figure 9 in the unfolded state;

[0083] Figure 44 is a sectional view along the section line E-E of the rotating mechanism in Figure 9 in a transition between the unfolded state and the folded state;

[0084] Figure 45 is a sectional view along the section line E-E of the rotating mechanism in Figure 9 in the folded state;

[0085] Figure 46 is an exploded view of the structure of the first fixed frame, the first swing arm, the second swing arm and the second fixed frame according to an embodiment of the present application;

[0086] Figure 47 is a structural view of a first swing arm and a second swing arm according to an embodiment of the present application;

[0087] Figure 48 is a structural view of another first swing arm and another second swing arm according to an embodiment of the present application;

[0088] Figure 49 is a sectional view along the section line F-F of the rotating mechanism in Figure 9 in the unfolded state;

[0089] Figure 50 is a sectional view along the section line F-F of the rotating mechanism in Figure 9 in a transition between the unfolded state and the folded state;

[0090] Figure 51 is a sectional view along the section line F-F of the rotating mechanism in Figure 9 in the folded state;

[0091] FIG. 52 is a structural diagram of a damping sliding block according to an embodiment of the present application;

[0092] FIG. 53 is a structural diagram of a synchronous sliding block according to an embodiment of the present application. DETAILED DESCRIPTION

[0093] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them.

[0094] Hereinafter, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0095] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0096] In the embodiments of the present application, for example, the directions of the structure and movement of different components in the present application are relative. When the components are in the positions shown in the drawings, these directions are appropriate. However, if the position of the components changes, these directions will also change accordingly.

[0097] The embodiments of the present application provide a foldable electronic device. The foldable electronic device can be a mobile phone, a pad, a television, a smart wearable product (for example, a smart watch, a smart bracelet), and the like terminal product.

[0098] In order to facilitate the understanding of the foldable electronic device 1 provided by the embodiments of the present application, FIG. 1 is a structural diagram of a foldable electronic device 1 in an unfolded state according to an embodiment of the present application; FIG. 2 is a structural diagram of a foldable electronic device in a transition state between an unfolded state and a folded state according to an embodiment of the present application; and FIG. 3 is a structural diagram of a foldable electronic device 1 in a folded state according to an embodiment of the present application. The foldable electronic device 1 will be introduced as follows by combining FIG. 1, FIG. 2 and FIG. 3.

[0099] The folding electronic device 1 comprises a flexible screen. The position of the dashed line block in FIG. 1 can be the position where the flexible screen 30 is placed. The flexible screen 30 can be an active matrix organic light emitting diode (AMOLED) display screen.

[0100] The AMOLED display screen is a self-luminous display screen, and does not need to be provided with a back light module (BLM). Therefore, when a substrate substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable characteristic.

[0101] In addition, the folding electronic device 1 further comprises a first structural member 21 and a second structural member 22 for carrying the flexible screen 30. The first structural member 21 and the second structural member 22 are used to carry the flexible screen 30, so that the flexible screen 30 can be kept as flat as possible during use, and the non-display surface of the flexible screen 30 is protected.

[0102] The embodiments of the present application only briefly illustrate the partial structures of the first structural member 21 and the second structural member 22, and the drawings are also simplified and illustrated. The embodiments of the present application do not strictly limit the specific structures of the first structural member 21 and the second structural member 22.

[0103] The first structural member 21 and the second structural member 22 can each comprise a middle frame structure, and other components for mounting and fixing the folding electronic device 1, such as a camera, an earphone, a receiver, a key, a battery, etc. The embodiments of the present application do not limit other electronic elements provided on the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 can each further comprise a decorative cover plate for protecting the devices inside the middle frame structure, and also for presenting part of the appearance of the folding electronic device 1.

[0104] To realize the bending function of the flexible screen, the embodiments of the present application provide a rotating mechanism 10. The rotating mechanism 10 can be connected between the first structural member 21 and the second structural member 22.

[0105] For example, a part of the flexible screen 30 can be fixed to the first structural member 21 through a glue layer, and a part can be fixed to the second structural member 22 through a glue layer. In addition, a part of the flexible screen 30 can also be fixed to the rotating mechanism 10. The glue layer can be a thin film layer formed after glue is applied. The embodiments of the present application do not limit the specific form of the glue layer. For example, the glue layer can be an intermittent thin film layer, or the glue layer can also be an integral thin film layer.

[0106] FIG. 4 is a structural diagram of a rotating mechanism in an unfolded state according to an embodiment of the present application; FIG. 5 is a structural diagram of a rotating mechanism in a state of switching between an unfolded state and a folded state according to an embodiment of the present application; FIG. 6 is a structural diagram of a rotating mechanism in a folded state according to an embodiment of the present application; and FIG. 7 is an exploded structural diagram of a rotating mechanism in an unfolded state according to an embodiment of the present application. In combination with FIGS. 4, 5, 6 and 7, the rotating mechanism 10 can include a main shaft 100, a first rotating shaft assembly 10A and a second rotating shaft assembly 10B.

[0107] For the purpose of illustration, the length extension direction of the main shaft 100 is defined as a first direction X, the arrangement direction of the first rotating shaft assembly 10A and the second rotating shaft assembly 10B when the folding electronic device 1 is in an unfolded state is defined as a second direction Y, and the second direction Y is perpendicular to the first direction X. The third direction Z is perpendicular to the plane in which the first direction X and the second direction Y lie.

[0108] For example, the first rotating shaft assembly 10A can be rotationally connected with the main shaft 100, and the first rotating shaft assembly 10A is further connected with the first structural member 21. The second rotating shaft assembly 10B can be rotationally connected with the main shaft 100, and the second rotating shaft assembly 10B is further connected with the second structural member 22. The rotation axis of the first rotating shaft assembly 10A relative to the main shaft 100 and the rotation axis of the second rotating shaft assembly 10B relative to the main shaft 100 are both parallel to the first direction X.

[0109] In combination with FIGS. 1 and 4, when the folding electronic device 1 is in an unfolded state, the included angle between the first structural member 21 and the second structural member 22 can be substantially 180° (it can be understood that the included angle between the first structural member 21 and the second structural member 22 can also allow a small deviation, for example, the included angle can be 165°, 177° or 185°). At this time, the rotating mechanism 10 is also in an unfolded state. When the rotating mechanism 10 is in an unfolded state, the first rotating shaft assembly 10A and the second rotating shaft assembly 10B are arranged along the second direction Y.

[0110] In combination with FIGS. 3 and 6, when the folding electronic device 1 is in a folded state, the included angle between the first structural member 21 and the second structural member 22 can be substantially 0° (it can be understood that the included angle between the first structural member 21 and the second structural member 22 can also allow a small deviation, for example, the included angle can be 1°, 3° or 5°). At this time, the flexible screen 30 is in a folded state, the first rotating shaft assembly 10A and the second rotating shaft assembly 10B are also in a folded state, that is, the rotating mechanism 10 is in a folded state. When the rotating mechanism 10 is in a folded state, the first rotating shaft assembly 10A and the second rotating shaft assembly 10B are located on the same side of the main shaft 100.

[0111] In some embodiments, when the folding electronic device 1 is in the folded state, the first structural member 21 and the second structural member 22 can be in contact with each other to achieve positioning. Alternatively, the first structural member 21 and the second structural member 22 can be close to each other with a small gap therebetween, which is not specifically limited in the embodiments of the present application.

[0112] Through the above arrangement, the first structural member 21 can drive the first rotating shaft assembly 10A to rotate relative to the main shaft 100, and the second structural member 22 can drive the second rotating shaft assembly 10B to rotate relative to the main shaft 100, so as to achieve folding or unfolding of the flexible screen in the folding electronic device.

[0113] In the embodiments of the present application, the rotating mechanism 10 further includes a support door plate 200, which includes a first support plate 210, a second support plate 220, a third support plate 230, and a fourth support plate 240. The support door plate 200 can be installed on the first rotating shaft assembly 10A and the second rotating shaft assembly 10B.

[0114] FIG. 8A is an exploded view of the structure at M of the rotating mechanism 10 in FIG. 7, and FIG. 8B is an exploded view of the structure at M of the rotating mechanism 10 in FIG. 7 from another perspective. Referring to FIGS. 8A and 8B, the first rotating shaft assembly 10A can include a first rotating member 410 and a first fixing frame 310. A first end 410A of the first rotating member is rotationally connected to the main shaft 100, and a second end 410B of the first rotating member is movably connected to the first fixing frame 310. Herein, the connection manner between the second end 410B of the first rotating member and the first fixing frame 310 is not specifically limited in the embodiments of the present application. For example, the second end 410B of the first rotating member can be slidingly connected to the first fixing frame 310, or the second end 410B of the first rotating member can be rotationally connected to the first fixing frame 310.

[0115] The extension direction of the first fixing frame 310 can be parallel to the first direction X. The first fixing frame 310 can be fixedly connected to the first structural member 21. Through the above arrangement, the first structural member 21 can be connected to the main shaft 100 through the first fixing frame 310 and the first rotating member 410, and the first structural member 21 can rotate relative to the main shaft 100.

[0116] Further, the first support plate 210 can be connected to the first fixing frame 310. The connection manner between the first support plate 210 and the first fixing frame 310 is not limited in the embodiments of the present application. For example, the first support plate 210 can be fixedly connected to the first fixing frame 310, or the first support plate 210 can be movably connected to the first fixing frame 310. Through the connection between the first support plate 210 and the first fixing frame 310, the first fixing frame 310 can drive the first support plate 210 to rotate relative to the main shaft 100.

[0117] In addition, the second support plate 220 can be rotationally connected with the first rotating member 410, and the rotation axis of the second support plate 220 relative to the first rotating member 410 is the first axis L1. In the embodiment of the present application, since the second support plate 220 is rotationally connected with the first rotating member 410, and the first rotating member 410 is rotationally connected with the main shaft 100, the first rotating member 410 can drive the second support plate 220 to rotate relative to the main shaft 100. Since the first rotating member 410 rotates relative to the main shaft 100, the position of the first axis L1 relative to the main shaft 100 changes in the process of converting the rotating mechanism 10 from the unfolded state to the folded state.

[0118] The second rotating shaft assembly 10B can include a second rotating member 420 and a second fixed frame 320. The first end 420A of the second rotating member is rotationally connected with the main shaft 100, and the second end 420B of the second rotating member is movably connected with the second fixed frame 320. Here, the embodiment of the present application does not make specific limitation on the connection mode between the second end 420B of the second rotating member and the second fixed frame 320. For example, the second end 420B of the second rotating member can be slidingly connected with the second fixed frame 320, or the second end 420B of the second rotating member can be rotationally connected with the second fixed frame 320.

[0119] The extension direction of the second fixed frame 320 can be parallel to the first direction X. The second fixed frame 320 can be fixedly connected with the second structural member 22. Through the above arrangement, the second structural member 22 can be connected with the main shaft 100 through the second fixed frame 320 and the second rotating member 420, and the second structural member 22 can rotate relative to the main shaft 100.

[0120] Further, the fourth support plate 240 can be connected with the second fixed frame 320. Here, the embodiment of the present application does not make limitation on the connection mode between the fourth support plate 240 and the second fixed frame 320. For example, the fourth support plate 240 can be fixedly connected with the second fixed frame 320, or the fourth support plate 240 can also be movably connected with the second fixed frame 320. Through the connection between the fourth support plate 240 and the second fixed frame 320, the second fixed frame 320 can drive the fourth support plate 240 to rotate relative to the main shaft 100.

[0121] Further, the third support plate 230 can be rotationally connected with the second rotating member 420, and the rotation axis of the third support plate 230 relative to the second rotating member 420 is the second axis L2. In the embodiment of the present application, since the third support plate 230 is rotationally connected with the second rotating member 420, and the second rotating member 420 is rotationally connected with the main shaft 100, the second rotating member 420 can drive the third support plate 230 to rotate relative to the main shaft 100. Since the second rotating member 420 rotates relative to the main shaft 100, the position of the second axis L2 relative to the main shaft 100 changes in the process of the rotating mechanism 10 transforming from the unfolded state to the folded state.

[0122] In some embodiments, at least one of the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240 can be connected with the flexible screen 30, so that the flexible screen 30 can be fixed on the support door plate 200.

[0123] In some embodiments, the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240 can not be fixedly connected with the flexible screen 30, so that the flexible screen 30 can be in a free bending form. Here, the "free bending form" can be understood as that the bending form of the flexible screen 30 is independent of the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240.

[0124] When the rotating mechanism 10 is in the unfolded state: the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240 are arranged in the second direction Y in sequence, and the second end 410B of the first rotating member, the first end 410A of the first rotating member, the first end 420A of the second rotating member and the second end 420B of the second rotating member are arranged in the second direction Y in sequence.

[0125] Further, the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240 together constitute a support plane S. The support plane S can be used to support the flexible screen 30, and improve the flatness of the flexible screen 30 in the unfolded state. For example, the support plane S can be perpendicular to the third direction Z.

[0126] Here, the "support plane S" can be understood as a plane or an approximate plane, wherein the plane can be a surface parallel to the first direction X and the second direction Y, and the approximate plane can be a slightly undulating surface, and the acceptable deviation range of the approximate plane can be, for example, a deviation within 5%.

[0127] In some embodiments, the flexible screen 30 can be fixed on the first rotating shaft assembly 10A and the second rotating shaft assembly 10B by a glue layer, and the supporting effect of the rotating mechanism 10 on the flexible screen 30 can be adjusted by adjusting the thickness of the glue layer, so as to ensure that the flexible screen 30 is in the unfolded state. At this time, the "together constitute the support plane S" can also be understood as adjusting the thickness of the glue layer between the flexible screen 30 and the first rotating shaft assembly 10A, the flexible screen 30 and the second rotating shaft assembly 10B, so that the first rotating shaft assembly 10A, the main shaft 100 and the second rotating shaft assembly 10B together constitute the support plane S, thereby ensuring the unfolded state of the flexible screen 30 when it is unfolded.

[0128] In the process of converting the rotating mechanism 10 from the unfolded state to the folded state, the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240 rotate relative to the main shaft 100.

[0129] As described in the above embodiments, in the process of converting the rotating mechanism 10 from the unfolded state to the folded state, the first rotating shaft assembly 10A rotates relative to the main shaft 100, and the second rotating shaft assembly 10B rotates relative to the main shaft 100. Since the first support plate 210 and the second support plate 220 are connected to the first rotating shaft assembly 10A, and the third support plate 230 and the fourth support plate 240 are connected to the second rotating shaft assembly 10B, the first support plate 210, the second support plate 220, the third support plate 230 and the fourth support plate 240 can all rotate relative to the main shaft 100.

[0130] FIG. 9 is a structural view of the rotating mechanism 10 in the folded state at position M in FIG. 7. FIG. 10 is a sectional view along the A-A sectional line of the rotating mechanism 10 in FIG. 9 in the unfolded state. FIG. 11 is a sectional view along the A-A sectional line of the rotating mechanism 10 in FIG. 9 in the process of converting between the unfolded state and the folded state. FIG. 12 is a sectional view along the A-A sectional line of the rotating mechanism 10 in FIG. 9 in the folded state.

[0131] As shown in FIGS. 9 and 12, when the rotating mechanism 10 is in the folded state, the support door plate 200 and the main shaft 100 together constitute the accommodating space P. For example, the support door plate 200 can be located on the same side of the main shaft 100, and the two support plates can have a certain angle therebetween. For example, the included angle between the first support plate 210 and the second support plate 220 can be an obtuse angle, and the included angle between the third support plate 230 and the fourth support plate 240 can be an obtuse angle. The support plates and the main shaft 100 can also have a certain angle therebetween. For example, the included angle between the second support plate 220 and the main shaft 100 can be an obtuse angle, and the included angle between the third support plate 230 and the main shaft 100 can be an obtuse angle.

[0132] Through the above arrangement, the first support plate 210, the second support plate 220, the third support plate 230, the fourth support plate 240 and the main shaft 100 can collectively enclose a containing space P, and the partial flexible screen 30 can be located in the containing space P. The containing space P can make the flexible screen 30 inside it fold into a water drop type or an approximate water drop type, so as to avoid excessive extrusion of the flexible screen 30 by the rotating mechanism 10, thereby reducing the stress on the flexible screen 30 and improving the reliability of the flexible screen 30.

[0133] In summary, when the rotating mechanism 10 is in the unfolded state, the support door plate 200 can support the flexible screen 30 and improve the flatness of the flexible screen 30. Since the first support plate 210 can be connected with the first fixed frame 310, the second support plate 220 can be rotationally connected with the first rotating member 410, the third support plate 230 can be rotationally connected with the second rotating member 420, and the fourth support plate 240 can be connected with the second fixed frame 320, the support door plate 200 can rotate relative to the main shaft 100 during the conversion of the rotating mechanism 10 from the unfolded state to the folded state. When the rotating mechanism 10 is in the folded state, the support door plate 200 can form the containing space P together with the main shaft 100 to contain the folded part of the flexible screen 30. Through the above arrangement, the rotating mechanism 10 can realize the conversion of the flexible screen 30 between the unfolded state and the folded state.

[0134] In some embodiments, referring to FIG. 10, when the rotating mechanism 10 is in the unfolded state: in the second direction Y, the first end 218 of the first support plate, the second end 219 of the first support plate, the first end 228 of the second support plate, the second end 229 of the second support plate, the first end 238 of the third support plate, the second end 239 of the third support plate, the first end 248 of the fourth support plate and the second end 249 of the fourth support plate are arranged in sequence. The distance between the second end 229 of the second support plate and the first end 238 of the third support plate in the second direction Y is a first distance D1.

[0135] In some examples, the second end 229 of the second support plate and the first end 238 of the third support plate can be in contact with each other, that is, the first distance D1 is zero. In some other examples, there can be a small gap between the second end 229 of the second support plate and the first end 238 of the third support plate, and the width of the gap in the second direction Y is the first distance D1.

[0136] Further, referring to FIG. 12, when the rotating mechanism 10 is in the folded state: in the second direction Y, the distance between the first end 218 of the first support plate and the second end 249 of the fourth support plate is less than the distance between the second end 219 of the first support plate and the first end 248 of the fourth support plate, and in the second direction Y, the distance between the first end 228 of the second support plate and the second end 239 of the third support plate is greater than the distance between the second end 229 of the second support plate and the first end 238 of the third support plate.

[0137] When the rotating mechanism 10 is in the folded state: in the second direction Y, the distance between the first end 218 of the first support plate and the second end 249 of the fourth support plate is less than the distance between the second end 219 of the first support plate and the first end 248 of the fourth support plate, the following implementations can be included: in some embodiments, in the direction close to the main shaft 100, the distance between the first support plate 210 and the fourth support plate 240 in the second direction Y gradually increases. Here, the "direction close to the main shaft 100" can be a direction parallel to the third direction Z and pointing to the main shaft 100.

[0138] Alternatively, in other embodiments, in the direction close to the main shaft 100, the distance between the first support plate 210 and the fourth support plate 240 in the second direction Y first decreases and then increases. Alternatively, in other embodiments, in the direction close to the main shaft 100, the distance between the first support plate 210 and the fourth support plate 240 in the second direction Y first increases and then decreases.

[0139] Similarly, when the rotating mechanism 10 is in the folded state: in the second direction Y, the distance between the first end 228 of the second support plate and the second end 239 of the third support plate is greater than the distance between the second end 229 of the second support plate and the first end 238 of the third support plate, the following implementations can also be included: in some embodiments, in the direction close to the main shaft 100, the distance between the second support plate 220 and the third support plate 230 in the second direction Y gradually decreases. Here, the "direction close to the main shaft 100" can be a direction parallel to the third direction Z and pointing to the main shaft 100.

[0140] Alternatively, in other embodiments, in the direction close to the main shaft 100, the distance between the second support plate 220 and the third support plate 230 in the second direction Y first increases and then decreases. Alternatively, in other embodiments, in the direction close to the main shaft 100, the distance between the second support plate 220 and the third support plate 230 in the second direction Y first decreases and then increases.

[0141] Through the above arrangement, the first support plate 210, the second support plate 220, the third support plate 230, the fourth support plate 240 and the main shaft 100 can make the flexible screen 30 fold into a water drop type or a similar water drop type, avoid excessive extrusion of the flexible screen 30 by the rotating mechanism 10, thereby reducing the stress on the flexible screen 30 and improving the reliability of the flexible screen 30.

[0142] Further, when the rotating mechanism 10 is in the folded state, the distance between the second end 229 of the second support plate and the first end 238 of the third support plate in the second direction Y is a second distance D2, and the second distance D2 is greater than the first distance D1.

[0143] Since the second distance D2 is greater than the first distance D1, when the rotating mechanism 10 is in the unfolded state, the distance between the second end 229 of the second support plate and the first end 238 of the third support plate is reduced, which is beneficial to improve the supporting effect of the flexible screen 30. When the rotating mechanism 10 is in the folded state, the distance between the second end 229 of the second support plate and the first end 238 of the third support plate is increased, which is beneficial to further increase the screen space surrounded by the first support plate 210, the second support plate 220, the third support plate 230, the fourth support plate 240 and the main shaft 100, thereby further improving the reliability of the flexible screen 30.

[0144] FIG. 13 is an exploded view of the structure of the first rotating member 410, the second support plate 220, the main shaft 100, the third support plate 230 and the second rotating member 420 in the rotating mechanism 10 provided by an embodiment of the present application.

[0145] Referring to FIG. 13, in some embodiments, the first end 410A of the first rotating member and the main shaft 100 can be rotatably connected through a first arc-shaped sliding block 413 and a first arc-shaped sliding groove 111. The first end 410A of the first rotating member can include the first arc-shaped sliding block 413, and the main shaft 100 can include the first arc-shaped sliding groove 111. Similarly, the first end 420A of the second rotating member and the main shaft 100 are rotatably connected through a second arc-shaped sliding block 423 and a second arc-shaped sliding groove 112, wherein the first end 420A of the second rotating member includes the second arc-shaped sliding block 423, and the main shaft 100 includes the second arc-shaped sliding groove 112.

[0146] FIG. 14 is a structural view of the main shaft 100 provided by an embodiment of the present application, FIG. 15 is an exploded view of the structure of the main shaft 100 provided by an embodiment of the present application, and FIG. 16 is a structural view of a main inner shaft 102 provided by an embodiment of the present application.

[0147] For example, referring to FIG. 14, FIG. 15 and FIG. 16, the main shaft 100 can include a main inner shaft 102 and a main outer shaft 101 stacked along the third direction Z, wherein the main inner shaft 102 is closer to the flexible screen 30 than the main outer shaft 101. The main inner shaft 102 can include a main shaft body 1021, and a first shaft block 1022 and a second shaft block 1023 disposed on the main shaft body 1021, the first shaft block 1022 and the second shaft block 1023 being closer to the flexible screen 30 than the main shaft body 1021, the first shaft block 1022 and the main shaft body 1021 collectively enclosing a first arc-shaped sliding groove 111, and the second shaft block 1023 and the main shaft body 1021 collectively enclosing a second arc-shaped sliding groove 112. The first shaft block 1022 and the second shaft block 1023 can be spaced apart along the second direction Y, so that the first arc-shaped sliding groove 111 and the second arc-shaped sliding groove 112 can be spaced apart along the second direction Y.

[0148] In combination with FIG. 13, the first arc-shaped sliding block 413 is in sliding connection with the first arc-shaped sliding groove 111, so that the first end 410A of the first rotating member and the main shaft 100 can be rotatably connected through the virtual shaft. The second arc-shaped sliding block 423 is in sliding connection with the second arc-shaped sliding groove 112, so that the first end 420A of the second rotating member and the main shaft 100 can be rotatably connected through the virtual shaft.

[0149] In addition, the first end 410A of the first rotating member can be a third axis L3 relative to the rotation axis of the main shaft 100, and the first end 420A of the second rotating member can be a fourth axis L4 relative to the rotation axis of the main shaft 100.

[0150] FIG. 17 is a structural diagram of a first rotating member 410 and a second rotating member 420 provided by an embodiment of the present application; and FIG. 18 is a structural diagram of the first rotating member 410 and the second rotating member 420 from another perspective provided by an embodiment of the present application.

[0151] For example, in combination with FIG. 17 and FIG. 18, the groove wall of the first arc-shaped sliding groove 111 can be a circular arc surface, the central axis of the circular arc surface of the first arc-shaped sliding groove 111 being the third axis L3, which can be parallel to the first direction X. And the third axis L3 is located outside the main shaft 100 and the first rotating member 410. The groove wall of the second arc-shaped sliding groove 112 can also be a circular arc surface, the central axis of the circular arc surface of the second arc-shaped sliding groove 112 being the fourth axis L4, which can also be parallel to the first direction X. And the fourth axis L4 is located outside the main shaft 100 and the second rotating member 420, and the third axis L3 and the fourth axis L4 are arranged along the second direction Y.

[0152] Through the above arrangement, the rotation axis of the first rotating member 410 relative to the main shaft 100 and the rotation axis of the second rotating member 420 relative to the main shaft 100 are both parallel to the first direction X and do not coincide, that is, the third axis L3 and the fourth axis L4 are both parallel to the first direction X and do not coincide.

[0153] Further, the number of the first arc-shaped sliding grooves 111 and the first arc-shaped sliding blocks 413 can be multiple, and the number of the second arc-shaped sliding grooves 112 and the second arc-shaped sliding blocks 423 can also be multiple, so as to further improve the connection reliability between the first rotating member 410 and the main shaft 100 and between the second rotating member 420 and the main shaft 100.

[0154] For example, referring to FIG. 18, the number of the first arc-shaped sliding grooves 111 and the second arc-shaped sliding grooves 112 can both be two, and the two first arc-shaped sliding grooves 111 are arranged at intervals along the first direction X, and the two second arc-shaped sliding grooves 112 are arranged at intervals along the first direction X. Correspondingly, the number of the first arc-shaped sliding blocks 413 and the second arc-shaped sliding blocks 423 can both be two. The two first arc-shaped sliding blocks 413 can be arranged along the first direction X, and the two second arc-shaped sliding blocks 423 can be arranged along the first direction X.

[0155] FIG. 19 is a sectional view along the B-B sectional line of the rotating mechanism 10 in FIG. 9 in an unfolded state; FIG. 20 is a sectional view along the B-B sectional line of the rotating mechanism 10 in FIG. 9 in a state of being converted between the unfolded state and the folded state; and FIG. 21 is a sectional view along the B-B sectional line of the rotating mechanism 10 in FIG. 9 in a folded state.

[0156] In combination with FIGS. 19, 20 and 21, during the conversion of the rotating mechanism 10 from the unfolded state to the folded state, the first rotating member 410 rotates relative to the third axis L3 along the first rotation direction F1, and the second rotating member 420 rotates relative to the fourth axis L4 along the second rotation direction F2, and the first rotation direction F1 is opposite to the second rotation direction F2.

[0157] For example, the first arc-shaped sliding blocks 413 slide in the first arc-shaped sliding grooves 111 in a direction away from the second arc-shaped sliding grooves 112, and the portion of the first arc-shaped sliding blocks 413 located in the first arc-shaped sliding grooves 111 gradually decreases, and the second arc-shaped sliding blocks 423 slide in the second arc-shaped sliding grooves 112 in a direction away from the first arc-shaped sliding grooves 111, and the portion of the second arc-shaped sliding blocks 423 located in the second arc-shaped sliding grooves 112 gradually decreases. Through the above arrangement, it is beneficial to enclose a space for accommodating the flexible screen 30 by the first rotating member 410, the main shaft 100 and the second rotating member 420 when the rotating mechanism 10 is in the folded state.

[0158] When the rotating mechanism 10 is converted from the folded state to the unfolded state, the first rotating member 410 rotates relative to the third axis L3 in a third rotating direction F3, the second rotating member 420 rotates relative to the fourth axis L4 in a fourth rotating direction F4, and the third rotating direction F3 is opposite to the first rotating direction F1, and the fourth rotating direction F4 is opposite to the second rotating direction F2.

[0159] For example, the first arc-shaped sliding block 413 slides in the first arc-shaped sliding groove 111 towards the second arc-shaped sliding groove 112, and the portion of the first arc-shaped sliding block 413 in the first arc-shaped sliding groove 111 gradually increases, and the second arc-shaped sliding block 423 slides in the second arc-shaped sliding groove 112 towards the first arc-shaped sliding groove 111, and the portion of the second arc-shaped sliding block 423 in the second arc-shaped sliding groove 112 gradually increases. Through the above arrangement, it is beneficial to support the flexible screen 30 by the first rotating member 410, the main shaft 100 and the second rotating member 420 when the rotating mechanism 10 is in the unfolded state.

[0160] In addition, in some other embodiments, the first end 410A of the first rotating member can include the first arc-shaped sliding groove 111, and the main shaft 100 can include the first arc-shaped sliding block 413, so that the first rotating member 410 and the main shaft 100 can be rotatably connected through the first arc-shaped sliding groove 111 and the first arc-shaped sliding block 413. The first end 420A of the second rotating member includes the second arc-shaped sliding groove 112, and the main shaft 100 includes the second arc-shaped sliding block 423, so that the second rotating member 420 and the main shaft 100 can be rotatably connected through the second arc-shaped sliding groove 112 and the second arc-shaped sliding block 423.

[0161] FIG. 22A is a structural assembly view of the first fixed frame 310 and the first rotating member 410, and the second fixed frame 320 and the second rotating member 420 provided by an embodiment of the present application; FIG. 22B is a structural explosion view of the first fixed frame 310 and the first rotating member 410, and the second fixed frame 320 and the second rotating member 420 provided by an embodiment of the present application; and FIG. 23 is a structural view of the first fixed frame 310 and the second fixed frame 320 provided by an embodiment of the present application.

[0162] In combination with FIG. 9, FIG. 22A, FIG. 22B and FIG. 23, in some embodiments, the second end 410B of the first rotating member and the first fixed frame 310 are rotatably connected through the first connecting shaft 411, and the second end 420B of the second rotating member and the second fixed frame 320 are rotatably connected through the second connecting shaft 421.

[0163] Exemplarily, the second end 410B of the first rotating member is provided with a first connecting hole 415, the first fixing frame 310 is provided with a second connecting hole 315, and the first connecting shaft 411 is arranged in the first connecting hole 415 and the second connecting hole 315, so that the second end 410B of the first rotating member and the first fixing frame 310 are rotationally connected by the solid shaft. The number of the first connecting holes 415 can be multiple, and the multiple first connecting holes 415 are arranged along the first direction X at intervals. The number of the second connecting holes 315 can also be multiple, and the multiple second connecting holes 315 are arranged along the first direction X at intervals.

[0164] Similarly, the second end 420B of the second rotating member is provided with a third connecting hole 425, the second fixing frame 320 is provided with a fourth connecting hole 325, and the second connecting shaft 421 is arranged in the third connecting hole 425 and the fourth connecting hole 325, so that the second end 420B of the second rotating member and the second fixing frame 320 are rotationally connected by the solid shaft. The number of the third connecting holes 425 can be multiple, and the multiple third connecting holes 425 are arranged along the first direction X at intervals. The number of the fourth connecting holes 325 can also be multiple, and the multiple fourth connecting holes 325 are arranged along the first direction X at intervals. Through the above arrangement, it is beneficial to improve the assembly compactness between the first rotating member 410 and the first fixing frame 310 and between the second rotating member 420 and the second fixing frame 320, and thus it is beneficial to reduce the size of the rotating mechanism 10.

[0165] Further, as shown in FIG. 19, when the rotating mechanism 10 is in the unfolded state, the first connecting shaft 411 and the second connecting shaft 421 both intersect the second direction Y, and the first connecting shaft 411 and the second connecting shaft 421 both intersect the direction perpendicular to the support plane S. For example, the first connecting shaft 411 and the second connecting shaft 421 can both be parallel to the first direction X. That is, the rotation axis of the second end 410B of the first rotating member relative to the first fixing frame 310 can be parallel to the first direction X, and the rotation axis of the second end 420B of the second rotating member relative to the second fixing frame 320 can be parallel to the first direction X. Through the above arrangement, it is beneficial to reduce the occupied space of the first connecting shaft 411 and the second connecting shaft 421 in the second direction Y and the third direction Z, and thus it is beneficial to reduce the size of the rotating mechanism 10.

[0166] Of course, in some other embodiments, the first fixing frame 310 and the first rotating member 410, and the second fixing frame 320 and the second rotating member 420 can also be rotationally connected by a virtual shaft. For example, the first fixing frame 310 and the first rotating member 410 can be rotationally connected by an arc-shaped sliding block and an arc-shaped sliding groove, and the second fixing frame 320 and the second rotating member 420 can be rotationally connected by an arc-shaped sliding block and an arc-shaped sliding groove.

[0167] In addition, the first fixed frame 310 and the first rotating member 410 can be movably connected in other ways. For example, the first fixed frame 310 and the second end 410B of the first rotating member can be slidably connected, and the second fixed frame 320 and the second end 420B of the second rotating member can be slidably connected.

[0168] Referring to FIG. 13, in some embodiments, the second support plate 220 and the first rotating member 410 are rotatably connected, which can include that the first rotating member 410 and the second support plate 220 are rotatably connected through the first matching shaft 412 and the first matching hole 221. The first rotating member 410 includes the first matching shaft 412, and the second support plate 220 includes the first matching hole 221.

[0169] FIG. 24 is a structural diagram of a second support plate 220 and a third support plate 230 provided by an embodiment of the present application. In combination with FIG. 13, FIG. 14, and FIG. 24, the first matching protrusion 223 is provided on the side of the second support plate 220 away from the flexible screen 30, and the first matching hole 221 is provided on the first matching protrusion 223. Correspondingly, in combination with FIG. 17 and FIG. 18, the first rotating member 410 can include the first rotating body 419 and the first matching shaft 412, and the first rotating body 419 and the first matching shaft 412 can be an integral structure. The first rotating body 419 can have the first avoiding slot 418, and the first matching shaft 412 can be arranged in the first avoiding slot 418. The first matching shaft 412 can be arranged in the first matching hole 221, and the first matching shaft 412 and the first matching hole 221 can be gap-fitted.

[0170] Through the above arrangement, the second support plate 220 and the first rotating member 410 can be rotatably connected through the solid shaft. In the process of converting the rotating mechanism 10 between the unfolded state and the folded state, the first rotating member 410 rotates relative to the main shaft 100, and at the same time, the first rotating member 410 can drive the second support plate 220 to rotate relative to the main shaft 100. Moreover, it is beneficial to improve the assembly compactness between the second support plate 220 and the first rotating member 410, and thus it is beneficial to reduce the size of the rotating mechanism 10.

[0171] Similarly, the third support plate 230 and the second rotating member 420 are rotatably connected, which can include that the second rotating member 420 and the third support plate 230 are rotatably connected through the second matching shaft 422 and the second matching hole 231. The second rotating member 420 includes the second matching shaft 422, and the third support plate 230 includes the second matching hole 231.

[0172] For example, referring to FIGS. 13 and 14, the third support plate 230 can be provided with a second engaging protrusion 233 on a side facing away from the flexible screen 30, and the second engaging protrusion 233 can be provided with a second engaging hole 231. Correspondingly, referring to FIGS. 17 and 18, the second rotating member 420 can include a second rotating body 429 and a second engaging shaft 422, and the second rotating body 429 and the second engaging shaft 422 can be an integral structure. The second rotating body 429 can be provided with a second avoiding slot 428, and the second engaging shaft 422 can be arranged in the second avoiding slot 428. The second engaging shaft 422 can be arranged in the second engaging hole 231, and the second engaging shaft 422 and the second engaging hole 231 can be clearance fit.

[0173] Through the above arrangement, the third support plate 230 and the second rotating member 420 can be rotationally connected through the solid shaft. During the conversion of the rotating mechanism 10 between the unfolded state and the folded state, the second rotating member 420 can rotate relative to the main shaft 100, and at the same time, the second rotating member 420 can drive the third support plate 230 to rotate relative to the main shaft 100. Moreover, the assembly compactness between the third support plate 230 and the second rotating member 420 can be improved, and thus the size of the rotating mechanism 10 can be reduced.

[0174] Since FIGS. 19, 20 and 21 are sectional views along the B-B sectional line, the first engaging shaft 412 and the second engaging shaft 422 are not visible structures, and the positions of the first engaging shaft 412 and the second engaging shaft 422 that are blocked are shown by the dashed line frame in FIGS. 19, 20 and 21.

[0175] Referring to FIGS. 19, 20 and 21, during the conversion of the rotating mechanism 10 from the unfolded state to the folded state, the first engaging shaft 412 rotates relative to the third axis L3 along the first rotating direction F1, and the second engaging shaft 422 rotates relative to the fourth axis L4 along the second rotating direction F2. As described in the above embodiment, the rotating direction of the first rotating member 410 and the first engaging shaft 412 relative to the third axis L3 is the same, and the rotating direction of the second rotating member 420 and the second engaging shaft 422 relative to the fourth axis L4 is the same.

[0176] For example, when the first rotating member 410 rotates relative to the third axis L3 along the first rotating direction F1, the first arc-shaped sliding block 413 slides in the first arc-shaped sliding groove 111 away from the second arc-shaped sliding groove 112. When the second rotating member 420 rotates relative to the fourth axis L4 along the second rotating direction F2, the second arc-shaped sliding block 423 slides in the second arc-shaped sliding groove 112 away from the first arc-shaped sliding groove 111. Meanwhile, the first matching shaft 412 rotates relative to the third axis L3 along the first rotating direction F1, and the second matching shaft 422 rotates relative to the fourth axis L4 along the second rotating direction F2, so that the distance between the first matching shaft 412 and the main shaft 100 along the third direction Z increases, and the distance between the second matching shaft 422 and the main shaft 100 along the third direction Z increases. Through the above arrangement, when the rotating mechanism 10 is in the folded state, the second support plate 220 and the third support plate 230 can avoid the flexible screen 30, and avoid excessive extrusion of the flexible screen 30.

[0177] During the conversion of the rotating mechanism 10 from the folded state to the unfolded state, the first matching shaft 412 rotates relative to the third axis L3 along the third rotating direction F3, and the second matching shaft 422 rotates relative to the fourth axis L4 along the fourth rotating direction F4. As described in the above embodiment, the rotating direction of the first rotating member 410 and the first matching shaft 412 relative to the third axis L3 is the same, and the rotating direction of the second rotating member 420 and the second matching shaft 422 relative to the fourth axis L4 is the same.

[0178] For example, when the first rotating member 410 rotates relative to the third axis L3 along the third rotating direction F3, the first arc-shaped sliding block 413 slides in the first arc-shaped sliding groove 111 towards the second arc-shaped sliding groove 112. When the second rotating member 420 rotates relative to the fourth axis L4 along the fourth rotating direction F4, the second arc-shaped sliding block 423 slides in the second arc-shaped sliding groove 112 towards the first arc-shaped sliding groove 111. Meanwhile, the first matching shaft 412 rotates relative to the third axis L3 along the third rotating direction F3, and the second matching shaft 422 rotates relative to the fourth axis L4 along the fourth rotating direction F4, so that the distance between the first matching shaft 412 and the main shaft 100 along the third direction Z decreases, and the distance between the second matching shaft 422 and the main shaft 100 along the third direction Z decreases. Through the above arrangement, when the rotating mechanism 10 is in the unfolded state, the second support plate 220 and the third support plate 230 can support the flexible screen 30.

[0179] In some other embodiments, the second support plate 220 can include a first matching shaft 412, and the first rotating member 410 can include a first matching hole 221, so that the first rotating member 410 and the second support plate 220 are rotatably connected through the first matching shaft 412 and the first matching hole 221. The third support plate 230 can include a second matching shaft 422, and the second rotating member 420 can include a second matching hole 231, so that the second rotating member 420 and the third support plate 230 are rotatably connected through the second matching shaft 422 and the second matching hole 231.

[0180] In some embodiments, continuing to refer to FIGS. 17 and 18, the extending direction of the first matching shaft 412 and the extending direction of the second matching shaft 422 can both be parallel to the first direction X. Here, the second support plate 220 is parallel to the first direction X relative to the rotating axis of the first rotating member 410, that is, the extending direction of the first axis L1 is parallel to the first direction X. The third support plate 230 is parallel to the second direction Y relative to the rotating axis of the second rotating member 420, that is, the extending direction of the second axis L2 is parallel to the first direction X. Through the above arrangement, it is beneficial to reduce the occupied space of the first matching shaft 412 and the second matching shaft 422 in the second direction Y and the third direction Z, and it is beneficial to reduce the size of the rotating mechanism 10.

[0181] Further, continuing to refer to FIG. 18, when the rotating mechanism 10 is in the unfolded state: the orthographic projection of the third end 410C of the first rotating member on the first reference surface, the orthographic projection of the first matching shaft 412 on the first reference surface, and the orthographic projection of the fourth end 410D of the first rotating member on the first reference surface can be arranged in the first direction X in sequence. Here, the first reference surface can be perpendicular to the second direction Y, and the first reference surface can also be perpendicular to the support plane S.

[0182] Illustratively, the first avoiding slot 418 can be located between the third end 410C of the first rotating member and the fourth end 410D of the first rotating member, so that the first matching shaft 412 is arranged between the third end 410C of the first rotating member and the fourth end 410D of the first rotating member.

[0183] Similarly, when the rotating mechanism 10 is in the unfolded state: the orthographic projection of the third end 420C of the second rotating member on the first reference surface, the orthographic projection of the second matching shaft 422 on the first reference surface, and the orthographic projection of the fourth end 420D of the second rotating member on the first reference surface are arranged in the first direction X in sequence.

[0184] Illustratively, the second avoiding slot 428 can be located between the third end 420C of the second rotating member and the fourth end 420D of the second rotating member, so that the second matching shaft 422 is arranged between the third end 420C of the second rotating member and the fourth end 420D of the second rotating member.

[0185] With the above arrangement, in the first direction X, the first fitting shaft 412 can be arranged in the space between the third end 410C of the first rotating member and the fourth end 410D of the first rotating member, and the second fitting shaft 422 can be arranged in the space between the third end 420C of the second rotating member and the fourth end 420D of the second rotating member, which is conducive to further avoiding the first fitting shaft 412 and the second fitting shaft 422 occupying too much space in the first direction X, and thus is conducive to reducing the size of the rotating mechanism 10 in the first direction X.

[0186] In addition, when the rotating mechanism 10 is in the unfolded state: the orthographic projection of the first end 410A of the first rotating member on the second reference plane can at least partially overlap with the orthographic projection of the first fitting shaft 412 on the second reference plane. Wherein, the second reference plane can also be perpendicular to the first direction X, and the second reference plane can be perpendicular to the support plane S.

[0187] Similarly, the orthographic projection of the first end 420A of the second rotating member on the second reference plane at least partially overlaps with the orthographic projection of the second fitting shaft 422 on the second reference plane.

[0188] For example, the first end 410A of the first rotating member can include two first arc-shaped sliding blocks 413, and the first avoiding slot 418 can be located between the two first arc-shaped sliding blocks 413, that is, the first fitting shaft 412 is located between the two first arc-shaped sliding blocks 413; the first end 420A of the second rotating member can include two second arc-shaped sliding blocks 423, and the second avoiding slot 428 can be located between the two second arc-shaped sliding blocks 423, that is, the second fitting shaft 422 is located between the two second arc-shaped sliding blocks 423.

[0189] With the above arrangement, it is conducive to further avoiding the first fitting shaft 412 and the second fitting shaft 422 occupying too much space in the second direction Y and the third direction Z, and thus is conducive to reducing the size of the rotating mechanism 10 in the second direction Y and the third direction Z.

[0190] Continuing to refer to FIG. 13, in some embodiments, the second end 229 of the second support plate can include a first fitting surface 225, and the first end 410A of the first rotating member can include a first limiting surface 416.

[0191] Exemplarily, as shown in FIGS. 17 and 18, the first rotating body 419 can further include a first limiting surface 416, which can be located on the side of the first rotating body 419 close to the flexible screen 30, and which can be adjacent to the first avoiding slot 418 and can be located on the first end 410A of the first rotating member. Correspondingly, as shown in FIG. 24, the first end 228 of the second supporting plate can include a first matching surface 225, which can be located on the side of the second supporting plate 220 away from the flexible screen 30, and which can be adjacent to the first matching bump 223.

[0192] Similarly, continuing to refer to FIG. 13, the first end 238 of the third supporting plate can include a second matching surface 235, and the first end 420A of the second rotating member can include a second limiting surface 426.

[0193] Exemplarily, as shown in FIGS. 17 and 18, the second rotating body 429 can further include a second limiting surface 426, which can be located on the side of the second rotating body 429 close to the flexible screen 30, and which can be adjacent to the second avoiding slot 428 and can be located on the first end 420A of the second rotating member. Correspondingly, as shown in FIG. 24, the first end 238 of the third supporting plate can include a second matching surface 235, which can be located on the side of the third supporting plate 230 away from the flexible screen 30, and which can be adjacent to the second matching bump 233.

[0194] Further, continuing to refer to FIG. 10, when the rotating mechanism 10 is in the unfolded state: the first limiting surface 416 can be in contact with the first matching surface 225, and the second limiting surface 426 can be in contact with the second matching surface 235. Through the above arrangement, the first limiting surface 416 and the first matching surface 225 can achieve a limiting effect, so as to avoid the second supporting plate 220 from continuing to rotate relative to the first rotating member 410 when the rotating mechanism 10 is in the unfolded state, and thus avoid the first end 228 of the second supporting plate from being warped towards the direction close to the flexible screen 30, which is conducive to improving the supporting effect of the second supporting plate 220 on the flexible screen 30.

[0195] Similarly, the second limiting surface 426 and the second matching surface 235 can also achieve a limiting effect, so as to avoid the third supporting plate 230 from continuing to rotate relative to the second rotating member 420 when the rotating mechanism 10 is in the unfolded state, and thus avoid the second end 239 of the third supporting plate from being warped towards the direction close to the flexible screen 30, which is conducive to improving the supporting effect of the third supporting plate 230 on the flexible screen 30.

[0196] In some embodiments, with continued reference to FIGS. 13, 17 and 18, the first rotating member 410 can include a first limiting slot 417, which can be located between the first end 410A of the first rotating member and the second end 410B of the first rotating member. Accordingly, as shown in FIG. 24, the first end 228 of the second support plate can include a third mating surface 227.

[0197] For example, with continued reference to FIGS. 17 and 18, the first rotating body 419 can include the first limiting slot 417, the first limiting slot 417, the first avoiding slot 418 and the first limiting surface 416 can be arranged in the second direction Y in sequence, wherein the distance between the first limiting slot 417 and the first end 410A of the first rotating member is greater than the distance between the first limiting surface 416 and the first end 410A of the first rotating member. Accordingly, as shown in FIG. 24, the first end 228 of the second support plate can include the third mating surface 227, which can be located on the side of the second support plate 220 away from the flexible screen 30, and the third mating surface 227 can be adjacent to the first mating protrusion 223.

[0198] Similarly, with continued reference to FIGS. 13, 17 and 18, the second rotating member 420 can include a second limiting slot 427, which can be located between the first end 420A of the second rotating member and the second end 420B of the second rotating member. Accordingly, as shown in FIG. 24, the second end 239 of the third support plate can include a fourth mating surface 237.

[0199] For example, with continued reference to FIGS. 17 and 18, the second rotating body 429 can include the second limiting slot 427, the second limiting slot 427, the second avoiding slot 428 and the second limiting surface 426 can be arranged in the second direction Y in sequence, wherein the distance between the second limiting slot 427 and the first end 420A of the second rotating member is greater than the distance between the second limiting surface 426 and the first end 420A of the second rotating member. Accordingly, as shown in FIG. 24, the second end 239 of the third support plate can include the fourth mating surface 237, which can be located on the side of the second support plate 220 away from the flexible screen 30, and the fourth mating surface 237 can be adjacent to the second mating protrusion 233.

[0200] FIG. 25 is a front view of a second support plate 220 and a third support plate 230 in an unfolded state according to an embodiment of the present application. Further, referring to FIG. 25, the first end 2271 of the third cooperating surface, the second end 2272 of the third cooperating surface, the first end 2371 of the fourth cooperating surface, and the second end 2372 of the fourth cooperating surface are sequentially arranged along the second direction Y when the rotating mechanism 10 is in the unfolded state. The third cooperating surface 227 and the fourth cooperating surface 237 can each be an inclined surface. For example, the first end 2271 of the third cooperating surface is farther from the support plane S than the second end 2272 of the third cooperating surface, and the second end 2372 of the fourth cooperating surface is farther from the support plane S than the first end 2371 of the fourth cooperating surface.

[0201] Further, referring to FIGS. 17 and 18, the plane in which the bottom of the first limiting groove 417 lies can be parallel to the plane in which the second direction Y and the first direction X lie, and the plane in which the bottom of the second limiting groove 427 lies can be parallel to the plane in which the second direction Y and the first direction X lie when the rotating mechanism 10 is in the unfolded state.

[0202] In combination with FIG. 11, the above arrangement avoids interference between the third cooperating surface 227 and the bottom of the first limiting groove 417 and interference between the fourth cooperating surface 237 and the bottom of the second limiting groove 427 during the process of converting the rotating mechanism 10 from the unfolded state to the folded state.

[0203] In combination with FIG. 12, the third cooperating surface 227 is in contact with the bottom of the first limiting groove 417, and the fourth cooperating surface 237 is in contact with the bottom of the second limiting groove 427 when the rotating mechanism 10 is in the folded state. The above arrangement allows the third cooperating surface 227 and the bottom of the first limiting groove 417 to limit the rotation of the second support plate 220 relative to the first rotating member 410 when the rotating mechanism 10 is in the folded state, thereby preventing the second end 229 of the second support plate from rotating toward the flexible screen 30, which is conducive to preventing the second support plate 220 from excessively pressing the flexible screen 30.

[0204] Similarly, the fourth cooperating surface 237 and the bottom of the second limiting groove 427 can also limit the rotation of the third support plate 230 relative to the second rotating member 420 when the rotating mechanism 10 is in the folded state, thereby preventing the first end 238 of the third support plate from rotating toward the flexible screen 30, which is conducive to preventing the third support plate 230 from excessively pressing the flexible screen 30.

[0205] In some embodiments, continuing to refer to FIG. 14 and FIG. 16, the main inner shaft 102 can further include a first protrusion 121 and a second protrusion 122 disposed on the main shaft body 1021, the first protrusion 121 and the second protrusion 122 being spaced apart along the second direction Y. For example, the at least one first shaft block 1022 can be connected with the first protrusion 121, and the at least one second shaft block 1023 can be connected with the second protrusion 122.

[0206] Continuing to refer to FIG. 16, the first protrusion 121 can include a first sub-face 1213 and a second sub-face 1215, and the second protrusion 122 can include a third sub-face 1223 and a fourth sub-face 1225. The first sub-face 1213 and the third sub-face 1223 are arranged along the second direction Y, and the second sub-face 1215 and the fourth sub-face 1225 are located between the first sub-face 1213 and the third sub-face 1223, and the second sub-face 1215, the fourth sub-face 1225 and the main shaft body 1021 collectively enclose a recess 1029.

[0207] For example, the first sub-face 1213 can be a top surface of the first protrusion 121, the second sub-face 1215 can be a right surface of the first protrusion 121, the third sub-face 1223 can be a top surface of the second protrusion 122, and the fourth sub-face 1225 can be a left surface of the second protrusion 122. Part of the main shaft body 1021 can be connected between the first protrusion 121 and the second protrusion 122, so that the second sub-face 1215, the fourth sub-face 1225 and the main shaft body 1021 collectively enclose the recess 1029.

[0208] As shown in FIG. 24, further, the second support plate 220 can include a first body portion 2201 and a first limiting block 222, at least part of the first limiting block 222 can be located at the second end 229 of the second support plate. For example, the first body portion 2201 can be substantially in a plate structure, the first limiting block 222 is located at a side of the first body portion 2201 away from the flexible screen 30, and a surface of the first limiting block 222 away from the flexible screen 30 can include a curved surface.

[0209] Similarly, the third support plate 230 can include a second body portion 2301 and a second limiting block 232, at least part of the second limiting block 232 can be located at the first end 238 of the third support plate. For example, the second body portion 2301 can be substantially in a plate structure, the second limiting block 232 is located at a side of the second body portion 2301 away from the flexible screen 30, and a surface of the second limiting block 232 away from the flexible screen 30 can include a curved surface.

[0210] FIG. 26 is a sectional view along the C-C sectional line of the rotating mechanism 10 in the unfolded state in FIG. 9; FIG. 27 is a sectional view along the C-C sectional line of the rotating mechanism 10 in the transition between the unfolded state and the folded state in FIG. 9; and FIG. 28 is a sectional view along the C-C sectional line of the rotating mechanism 10 in the folded state in FIG. 9.

[0211] Referring to FIG. 26, when the rotating mechanism 10 is in the unfolded state, the first end 228 of the second support plate is in contact with the first sub-face 1213, and the second end 239 of the third support plate is in contact with the third sub-face 1223. For example, the first sub-face 1213 and the third sub-face 1223 can both be parallel to the plane in which the first direction X and the second direction Y lie. Through the above arrangement, the first sub-face 1213 can limit the second support plate 220, and when the rotating mechanism 10 is in the unfolded state, the first sub-face 1213 can prevent the second support plate 220 from continuing to rotate relative to the main shaft 100, thereby preventing the second end 229 of the second support plate from being raised toward the flexible screen 30, which is conducive to improving the supporting effect of the second support plate 220 on the flexible screen 30. Similarly, the third sub-face 1223 can also limit the third support plate 230, and when the rotating mechanism 10 is in the unfolded state, the third sub-face 1223 can prevent the third support plate 230 from continuing to rotate relative to the main shaft 100, thereby preventing the first end 238 of the third support plate from being raised toward the flexible screen 30, which is conducive to improving the supporting effect of the third support plate 230 on the flexible screen 30.

[0212] In addition, when the rotating mechanism 10 is in the unfolded state, at least part of the first limiting block 222 and at least part of the second limiting block 232 can be located in the groove 1029. Through the above arrangement, the space in the groove 1029 can be used to accommodate at least part of the first limiting block 222 and at least part of the second limiting block 232, which is conducive to reducing the occupied space of the second support plate 220 and the third support plate 230 in the third direction Z, thereby facilitating the reduction of the size of the rotating mechanism 10 in the third direction Z.

[0213] Referring to FIG. 28, when the rotating mechanism 10 is in the folded state, the second end 229 of the second support plate is in contact with the second sub-surface 1215, and the first end 238 of the third support plate is in contact with the fourth sub-surface 1225. For example, the second sub-surface 1215 and the fourth sub-surface 1225 can both be curved surfaces. The first limiting block 222 is in contact with the second sub-surface 1215, and the second limiting block 232 is in contact with the fourth sub-surface 1225. Through the above arrangement, the second sub-surface 1215 can limit the second support plate 220, and when the rotating mechanism 10 is in the folded state, the second sub-surface 1215 can prevent the second support plate 220 from rotating counterclockwise relative to the main shaft 100, thereby preventing the first end 228 of the second support plate from tilting towards the flexible screen 30, and further preventing the second support plate 220 from excessively pressing the flexible screen 30. Similarly, the fourth sub-surface 1225 can also limit the third support plate 230, and when the rotating mechanism 10 is in the folded state, the fourth sub-surface 1225 can prevent the third support plate 230 from rotating clockwise relative to the main shaft 100, thereby preventing the second end 239 of the third support plate from tilting towards the flexible screen 30, and further preventing the third support plate 230 from excessively pressing the flexible screen 30.

[0214] In some other embodiments, the second support plate 220 and the main shaft 100 can also be limited by other limiting structures, and the third support plate 230 and the main shaft 100 can also be limited by other limiting structures.

[0215] FIG. 29 is a structural diagram of the rotating mechanism 10 at position M in a folded state according to another embodiment of the present application; FIG. 30 is an exploded view of the first rotating member 410, the second support plate 220, the main shaft 100, the third support plate 230, and the second rotating member 420 in the rotating mechanism 10 according to another embodiment of the present application; and FIG. 31 is a structural diagram of the second support plate 220 and the third support plate 230 according to another embodiment of the present application.

[0216] For example, referring to FIGS. 29, 30, and 31, the second support plate 220 and the main shaft 100 can be connected by sliding through the first pin shaft 171 and the first guide groove 224, and the extension direction of the first pin shaft 171 can be parallel to the first direction X. The main shaft 100 can include the first pin shaft 171, and the second support plate 220 can include the first guide groove 224.

[0217] Similarly, the third support plate 230 and the main shaft 100 can be connected by sliding through the second pin shaft 172 and the second guide groove 234, and the extension direction of the second pin shaft 172 can be parallel to the first direction X. The main shaft 100 can include the second pin shaft 172, and the third support plate 230 can include the second guide groove 234.

[0218] FIG. 32 is a structural diagram of another spindle 100 according to an embodiment of the present application; FIG. 33 is a structural diagram of another main inner shaft 102 according to an embodiment of the present application; and FIG. 34 is a structural diagram of another main inner shaft 102 according to an embodiment of the present application, viewed from another angle.

[0219] For example, in combination with FIG. 32, FIG. 33 and FIG. 34, the main shaft body 1021 can include a first pin shaft 171 and a second pin shaft 172, wherein the first pin shaft 171 can be connected between the first shaft block 1022 and the first protrusion 121, and the second pin shaft 172 can be connected between the second shaft block 1023 and the second protrusion 122. Correspondingly, the first guide slot 224 can be located on the side of the second support plate 220 away from the flexible screen 30, and the first pin shaft 171 can be arranged in the first guide slot 224. The second guide slot 234 can be located on the side of the third support plate 230 away from the flexible screen 30, and the second pin shaft 172 can be arranged in the second guide slot 234.

[0220] Through the above arrangement, when the first pin shaft 171 moves in the first guide slot 224, the second support plate 220 can slide relative to the spindle 100, and through the cooperation of the first pin shaft 171 and the first guide slot 224, the limiting between the second support plate 220 and the spindle 100 can be achieved. Similarly, when the second pin shaft 172 moves in the second guide slot 234, the third support plate 230 can slide relative to the spindle 100, and through the cooperation of the second pin shaft 172 and the second guide slot 234, the limiting between the third support plate 230 and the spindle 100 can be achieved.

[0221] In addition, in some other embodiments, the spindle 100 can include the first guide slot 224, and the second support plate 220 can include the first pin shaft 171, so that the second support plate 220 and the spindle 100 can be connected through the first pin shaft 171 and the first guide slot 224. Similarly, the spindle 100 can include the second guide slot 234, and the third support plate 230 can include the second pin shaft 172, so that the third support plate 230 and the spindle 100 can be connected through the second pin shaft 172 and the second guide slot 234.

[0222] FIG. 35 is a sectional view along the G-G sectional line of the rotation mechanism 10 in the unfolded state according to FIG. 29; FIG. 36 is a sectional view along the G-G sectional line of the rotation mechanism 10 in the transition between the unfolded state and the folded state according to FIG. 29; and FIG. 37 is a sectional view along the G-G sectional line of the rotation mechanism 10 in the folded state according to FIG. 29.

[0223] Further, referring to FIG. 35, when the rotating mechanism 10 is in the unfolded state: in the second direction Y, the orthographic projection of the first end 2241 of the first guide slot on the support plane S, the orthographic projection of the second end 2242 of the first guide slot on the support plane S, the orthographic projection of the second end 2342 of the second guide slot on the support plane S, and the orthographic projection of the first end 2341 of the second guide slot on the support plane S can be arranged in sequence. For example, the first end 2241 of the first guide slot can be the left end of the first guide slot 224 in FIG. 35, the second end 2242 of the first guide slot can be the right end of the first guide slot 224 in FIG. 35, the first end 2341 of the second guide slot can be the right end of the second guide slot 234 in FIG. 35, and the second end 2342 of the second guide slot can be the left end of the second guide slot 234 in FIG. 35.

[0224] Further, the distance between the first end 2241 of the first guide slot and the support plane S can be less than the distance between the second end 2242 of the first guide slot and the support plane S, and the distance between the first end 2341 of the second guide slot and the support plane S can be less than the distance between the second end 2342 of the second guide slot and the support plane S. For example, the first end 2241 of the first guide slot can be inclined in a direction away from the support plane S in the direction of the second end 2242 of the first guide slot, and the first end 2341 of the second guide slot can be inclined in a direction away from the support plane S in the direction of the second end 2342 of the second guide slot.

[0225] In some embodiments, in combination with FIGS. 35, 36, and 37, during the process of converting the rotating mechanism 10 from the unfolded state to the folded state, the first pin shaft 171 can move relative to the first guide slot 224 in the direction from the first end 2241 of the first guide slot to the second end 2242 of the first guide slot, and the second pin shaft 172 can move relative to the second guide slot 234 in the direction from the first end 2341 of the second guide slot to the second end 2342 of the second guide slot.

[0226] Similarly, during the process of converting the rotating mechanism 10 from the folded state to the unfolded state, the first pin shaft 171 can move relative to the first guide slot 224 in the direction from the second end 2242 of the first guide slot to the first end 2241 of the first guide slot, and the second pin shaft 172 can move relative to the second guide slot in the direction from the second end 2342 of the second guide slot to the first end 2341 of the second guide slot.

[0227] For example, during the process of converting the rotating mechanism 10 between the unfolded state and the folded state, the first pin shaft 171 can move between the first end 2241 of the first guide slot and the second end 2242 of the first guide slot, and the second pin shaft 172 can move between the first end 2341 of the second guide slot and the second end 2342 of the second guide slot.

[0228] Referring to FIG. 35, when the rotating mechanism 10 is in the unfolded state, the first pin shaft 171 can be located at the first end 2241 of the first guide slot, and the second pin shaft 172 can be located at the first end 2341 of the second guide slot. The first pin shaft 171 can limit the second support plate 220, and the first pin shaft 171 can prevent the first end 228 of the second support plate from rotating relative to the main shaft 100, which is conducive to improving the supporting effect of the second support plate 220 on the flexible screen 30. Similarly, the second pin shaft 172 can also limit the third support plate 230, and the second pin shaft 172 can prevent the second end 239 of the third support plate from rotating relative to the main shaft 100, which is conducive to improving the supporting effect of the third support plate 230 on the flexible screen 30.

[0229] Referring to FIG. 37, when the rotating mechanism 10 is in the folded state, the first pin shaft 171 can be located at the second end 2242 of the first guide slot, and the second pin shaft 172 can be located at the second end 2342 of the second guide slot. The first pin shaft 171 can limit the second support plate 220, and the first pin shaft 171 can prevent the second end 229 of the second support plate from rotating relative to the main shaft 100, which is conducive to preventing the second support plate 220 from pressing the flexible screen 30. Similarly, the second pin shaft 172 can also limit the third support plate 230, and the second pin shaft 172 can prevent the first end 238 of the third support plate from rotating relative to the main shaft 100, which is conducive to preventing the third support plate 230 from pressing the flexible screen 30.

[0230] FIG. 38 is a partial exploded view of the first rotating shaft assembly 10A and the second rotating shaft assembly 10B in the rotating mechanism 10 according to an embodiment of the present application. In some embodiments, referring to FIG. 38, the first fixed frame 310 and the first support plate 210 can be rotatably connected through the third arc-shaped sliding block 311 and the third arc-shaped sliding groove 213. The first fixed frame 310 can include the third arc-shaped sliding block 311, and the first support plate 210 can include the third arc-shaped sliding groove 213.

[0231] For example, the first fixed frame 310 can include the first fixed body 3109 and the third arc-shaped sliding block 311, and the third arc-shaped sliding block 311 can be arranged at one end of the first fixed body 3109 along the first direction X. Correspondingly, the third arc-shaped sliding block 311 can be slidably arranged in the third arc-shaped sliding groove 213, so as to rotatably connect the first fixed frame 310 and the first support plate 210.

[0232] Similarly, the second fixed frame 320 and the fourth support plate 240 can be rotatably connected through the fourth arc-shaped sliding block 321 and the fourth arc-shaped sliding groove 243. The second fixed frame 320 can include the fourth arc-shaped sliding block 321, and the fourth support plate 240 can include the fourth arc-shaped sliding groove 243.

[0233] Exemplarily, the second fixing frame 320 can include a second fixing body 3209 and a third arc-shaped sliding block 311, and the third arc-shaped sliding block 311 can be arranged at one end of the second fixing body 3209 along the first direction X. Correspondingly, the third arc-shaped sliding block 311 can be slidingly arranged in the third arc-shaped sliding groove 213, so that the second fixing frame 320 and the first support plate 210 are rotationally connected.

[0234] In addition, in some other embodiments, the first fixing frame 310 can include the third arc-shaped sliding groove 213, and the first support plate 210 can include the third arc-shaped sliding block 311. The second fixing frame 320 can include the fourth arc-shaped sliding groove 243, and the fourth support plate 240 can include the fourth arc-shaped sliding block 321.

[0235] In some embodiments, the third arc-shaped sliding groove 213 and the fourth arc-shaped sliding groove 243 can be closed sliding grooves. Here, the “closed sliding groove” can be understood as that, in the plane where the second direction Y and the third direction Z are located, the cross-sectional shape of the sliding groove is a closed figure, and the size of the part of the sliding block located in the sliding groove does not change during the sliding of the sliding block in the sliding groove.

[0236] In the embodiments of the present application, the third arc-shaped sliding groove 213 and the fourth arc-shaped sliding groove 243 can also be non-closed sliding grooves. Here, the “non-closed sliding groove” can be understood as that, in the plane where the second direction Y and the third direction Z are located, the cross-sectional shape of the sliding groove is a non-closed figure, and the size of the part of the sliding block located in the sliding groove changes during the sliding of the sliding block in the sliding groove.

[0237] FIG. 39 is a sectional view along the D-D sectional line of the rotating mechanism 10 in FIG. 9 in the unfolded state; FIG. 40 is a sectional view along the D-D sectional line of the rotating mechanism 10 in FIG. 9 during the transition between the unfolded state and the folded state; and FIG. 41 is a sectional view along the D-D sectional line of the rotating mechanism 10 in FIG. 9 in the folded state.

[0238] As shown in FIG. 39, FIG. 40 and FIG. 41, during the transition of the rotating mechanism 10 from the unfolded state to the folded state, the third arc-shaped sliding block 311 slides in the third arc-shaped sliding groove 213 towards the second end 219 of the first support plate, and the part of the third arc-shaped sliding block 311 located in the third arc-shaped sliding groove 213 gradually increases. Similarly, the fourth arc-shaped sliding block 321 slides in the fourth arc-shaped sliding groove 243 towards the first end 248 of the fourth support plate, and the part of the fourth arc-shaped sliding block 321 located in the fourth arc-shaped sliding groove 243 gradually increases.

[0239] During the process of rotating mechanism 10 from the folded state to the unfolded state, third arc-shaped slider 311 slides in third arc-shaped sliding groove 213 in a direction away from second end 219 of first support plate, and the portion of third arc-shaped slider 311 in third arc-shaped sliding groove 213 gradually decreases. Similarly, fourth arc-shaped slider 321 slides in fourth arc-shaped sliding groove 243 in a direction away from first end 248 of fourth support plate, and the portion of fourth arc-shaped slider 321 in fourth arc-shaped sliding groove 243 gradually decreases.

[0240] With reference back to FIG. 38, and in combination with FIG. 18, in some embodiments, first rotating member 410 and first support plate 210 can be slidingly connected through third connecting shaft 431 and third guide slot 215. In this case, first rotating member 410 can include third connecting shaft 431, and first support plate 210 can include third guide slot 215.

[0241] For example, third end 410C of first rotating member 410 can include third connecting shaft 431. Third end 410C of first rotating member 410 can have a through hole 4109, and third connecting shaft 431 can be disposed in through hole 4109. In this case, third connecting shaft 431 can rotate relative to through hole 4109, or third connecting shaft 431 can be in interference fit with through hole 4109, so that third connecting shaft 431 is fixedly connected with through hole 4109. Correspondingly, third connecting shaft 431 can be slidingly disposed in third guide slot 215, so that first rotating member 410 and first support plate 210 can be slidingly connected.

[0242] Similarly, second rotating member 420 and fourth support plate 240 are slidingly connected through fourth connecting shaft 451 and fourth guide slot 245, in which second rotating member 420 includes fourth connecting shaft 451, and fourth support plate 240 includes fourth guide slot 245.

[0243] For example, third end 420C of second rotating member 420 can include fourth connecting shaft 451. Third end 420C of second rotating member 420 can have a through hole 4209, and fourth connecting shaft 451 can be disposed in through hole 4209. In this case, fourth connecting shaft 451 can rotate relative to through hole 4209, or fourth connecting shaft 451 can be in interference fit with through hole 4209, so that fourth connecting shaft 451 is fixedly connected with through hole 4209. Correspondingly, fourth connecting shaft 451 can be slidingly disposed in fourth guide slot 245, so that second rotating member 420 and second support plate 220 can be slidingly connected.

[0244] Further, the extending direction of the third connecting shaft 431 and the extending direction of the fourth connecting shaft 451 can be both parallel to the first direction X, thereby facilitating to reduce the occupied space of the third connecting shaft 431 in the second direction Y and the third direction Z, and also to reduce the occupied space of the fourth connecting shaft 451 in the second direction Y and the third direction Z, thereby facilitating to realize the thinning of the rotating mechanism 10.

[0245] In addition, in some other embodiments, the first rotating member 410 can include a third guide slot 215, and the first support plate 210 can include a third connecting shaft 431; the second rotating member 420 can include a fourth guide slot 245, and the second support plate 220 can include a fourth connecting shaft 451.

[0246] Referring to FIG. 39, when the rotating mechanism 10 is in the unfolded state: in the second direction Y, the distance between the first end 2151 of the third guide slot and the main shaft 100 can be greater than the distance between the second end 2153 of the third guide slot and the main shaft 100, and in the direction perpendicular to the support plane S, the distance between the first end 2151 of the third guide slot and the support plane S can be greater than the distance between the second end 2153 of the third guide slot and the support plane S.

[0247] For example, in combination with FIG. 38, in the embodiment in which the first support plate 210 includes the third arc-shaped sliding groove 213 and the third guide slot 215, the third arc-shaped sliding groove 213 and the third guide slot 215 can be arranged along the second direction Y, and the third guide slot 215 can be closer to the second end 219 of the first support plate than the third arc-shaped sliding block 311. Wherein the third guide slot 215 can be a strip-shaped slot, the first end 2151 of the third guide slot can be the left end of the third guide slot 215 in FIG. 39, and the second end 2153 of the third guide slot can be the right end of the third guide slot 215 in FIG. 39. In the second direction Y, the third guide slot 215 can be inclined towards the direction close to the support plane S.

[0248] Referring to FIG. 39, when the rotating mechanism 10 is in the unfolded state: in the second direction Y, the distance between the first end 2451 of the fourth guide slot and the main shaft 100 can be greater than the distance between the second end 2453 of the fourth guide slot and the main shaft 100, and in the direction perpendicular to the support plane S, the distance between the first end 2451 of the fourth guide slot and the support plane S can be greater than the distance between the second end 2453 of the fourth guide slot and the support plane S.

[0249] For example, as shown in FIG. 38, in the embodiment where the fourth support plate 240 comprises the fourth arc-shaped sliding groove 243 and the fourth guide slot 245, the fourth arc-shaped sliding groove 243 and the fourth guide slot 245 can be arranged along the second direction Y, and the fourth guide slot 245 can be closer to the first end 248 of the fourth support plate than the fourth arc-shaped sliding block 321. The fourth guide slot 245 can be a strip-shaped slot, the first end 2451 of the fourth guide slot can be the right end of the fourth guide slot 245 in FIG. 39, and the second end 2453 of the fourth guide slot can be the left end of the fourth guide slot 245 in FIG. 39. In the second direction Y, the fourth guide slot 245 can be inclined away from the support plane S.

[0250] Alternatively, in some other embodiments, the third guide slot 215 and the fourth guide slot 245 can also have other shapes. For example, the third guide slot 215 can also be an arc-shaped slot, and the fourth guide slot 245 can also be an arc-shaped slot.

[0251] As shown in FIGS. 39, 40 and 41, during the process of converting the rotating mechanism 10 from the unfolded state to the folded state, the third connecting shaft 431 can move relative to the third guide slot 215 from the first end 2151 of the third guide slot to the second end 2153 of the third guide slot, and the fourth connecting shaft 451 can move relative to the fourth guide slot 245 from the first end 2451 of the fourth guide slot to the second end 2453 of the fourth guide slot.

[0252] Similarly, during the process of converting the rotating mechanism 10 from the folded state to the unfolded state, the third connecting shaft 431 can move relative to the third guide slot 215 from the second end 2153 of the third guide slot to the first end 2151 of the third guide slot, and the fourth connecting shaft 451 can move relative to the fourth guide slot 245 from the second end 2453 of the fourth guide slot to the first end 2451 of the fourth guide slot.

[0253] For example, when the rotating mechanism 10 is in the unfolded state, the third connecting shaft 431 can be located at the first end 2151 of the third guide slot, and the fourth connecting shaft 451 can be located at the first end 2451 of the fourth guide slot. The third connecting shaft 431 can limit the first support plate 210, so as to avoid the second end 219 of the first support plate from rotating relative to the second fixed frame 320 towards the support plane S, which is conducive to improving the supporting effect of the first support plate 210 on the flexible screen 30. Similarly, the fourth connecting shaft 451 can also limit the fourth support plate 240, so as to avoid the first end 248 of the fourth support plate from rotating relative to the second fixed frame 320 towards the support plane S, which is conducive to improving the supporting effect of the fourth support plate 240 on the flexible screen 30.

[0254] When the rotating mechanism 10 is in the folded state, the third connecting shaft 431 can be located at the second end 2153 of the third guide slot, and the fourth connecting shaft 451 can be located at the second end 2453 of the fourth guide slot. The third connecting shaft 431 can limit the first support plate 210, and the third connecting shaft 431 can prevent the second end 219 of the first support plate from rotating away from the flexible screen 30 relative to the first fixed frame 310, which is beneficial to prevent the first support plate 210 from pressing the flexible screen 30. Similarly, the fourth connecting shaft 451 can also limit the fourth support plate 240, and the fourth connecting shaft 451 can prevent the first end 248 of the fourth support plate from rotating away from the flexible screen 30 relative to the second fixed frame 320, which is beneficial to prevent the fourth support plate 240 from pressing the flexible screen 30.

[0255] FIG. 42 is an exploded view of the structure of the first fixed frame 310, the first swing arm 510, the main shaft 100, the second swing arm 520, and the second fixed frame 320 in the rotating mechanism 10 provided in the embodiments of the present application. Still referring to FIG. 38, and in combination with FIG. 42, the first rotating shaft assembly 10A can further include the first swing arm 510. The first end 510A of the first swing arm can be rotationally connected with the main shaft 100, and the rotation axis of the first swing arm 510 relative to the main shaft 100 can be parallel to the first direction X. The second end 510B of the first swing arm 510 can be slidingly connected with the first fixed frame 310, and the sliding direction of the first swing arm 510 relative to the first fixed frame 310 can intersect the extension direction of the first fixed frame 310.

[0256] For example, the first fixed frame 310 can include the first sliding groove 313, and the extension direction of the first sliding groove 313 can be perpendicular to the extension direction of the first fixed frame 310. The second end 510B of the first swing arm 510 can include the first sliding block 513, and the first sliding block 513 can be slidingly connected with the first sliding groove 313. Through the above arrangement, the first swing arm 510 can move relative to the first fixed frame 310, and the sliding direction of the first swing arm 510 relative to the first fixed frame 310 is perpendicular to the length extension direction of the first fixed frame 310.

[0257] Similarly, the second rotating shaft assembly 10B can further include the second swing arm 520. The first end 520A of the second swing arm can be rotationally connected with the main shaft 100, and the rotation axis of the second swing arm 520 relative to the main shaft 100 can be parallel to the first direction X. The second end 520B of the second swing arm 520 can be slidingly connected with the second fixed frame 320, and the sliding direction of the second swing arm 520 relative to the second fixed frame 320 can intersect the extension direction of the second fixed frame 320.

[0258] Exemplarily, the second fixing frame 320 can include a second sliding groove 323, and an extending direction of the second sliding groove 323 can be perpendicular to an extending direction of the second fixing frame 320. The second end 520B of the second swing arm can include a second sliding block 523, and the second sliding block 523 is in sliding connection with the second sliding groove 323. Through the above arrangement, the second swing arm 520 can move relative to the second fixing frame 320, and a sliding direction of the second swing arm 520 relative to the second fixing frame 320 is perpendicular to the length extending direction of the second fixing frame 320.

[0259] FIG. 43 is a sectional view along the E-E sectional line of the rotating mechanism 10 in FIG. 9 in the unfolded state; FIG. 44 is a sectional view along the E-E sectional line of the rotating mechanism 10 in FIG. 9 in the transition between the unfolded state and the folded state; and FIG. 45 is a sectional view along the E-E sectional line of the rotating mechanism 10 in FIG. 9 in the folded state.

[0260] In combination with FIGS. 43, 44 and 45, during the transition of the rotating mechanism 10 from the unfolded state to the folded state, the first fixing frame 310 slides relative to the second end 510B of the first swing arm in a direction away from the main shaft 100, and the second fixing frame 320 slides relative to the second end 520B of the second swing arm in a direction away from the main shaft 100. Through the above arrangement, it is beneficial to adjust the length between the first fixing frame 310 and the second fixing frame 320, and it is beneficial to ensure that the length of the flexible screen 30 does not change during the transition of the rotating mechanism 10 from the unfolded state to the folded state, and to improve the phenomenon of extrusion or stretching of the flexible screen 30 by the rotating mechanism 10.

[0261] In some other embodiments, the first swing arm 510 can also be in sliding connection with the first support plate 210, and the second swing arm 520 can also be in sliding connection with the fourth support plate 240.

[0262] For example, the first support plate 210 and the first swing arm 510 can be in sliding connection through a rotating shaft and a strip-shaped hole, the extending direction of the rotating shaft is parallel to the first direction X, the first support plate 210 can include the strip-shaped hole, the rotating shaft can be in rotating connection or fixed connection with the first swing arm 510, the rotating shaft is arranged in the strip-shaped hole, and the rotating shaft moves along the extending direction of the strip-shaped hole to make the first support plate 210 and the first swing arm 510 slide relative to each other. For another example, the first support plate 210 and the first swing arm 510 can be in sliding connection through a rotating shaft and a guide groove, and the guide groove can be linear or arc-shaped. For another example, the first support plate 210 and the first swing arm 510 can be in sliding connection through a virtual shaft.

[0263] Similarly, the fourth support plate 240 and the second swing arm 520 can be connected through a rotating shaft and a strip-shaped hole, the extending direction of the rotating shaft is parallel to the first direction X, the fourth support plate 240 can include the strip-shaped hole, the rotating shaft can be rotatably connected or fixedly connected with the second swing arm 520, the rotating shaft is arranged in the strip-shaped hole, and the rotating shaft moves along the extending direction of the strip-shaped hole, so that the fourth support plate 240 and the second swing arm 520 slide relative to each other. Alternatively, the fourth support plate 240 and the second swing arm 520 can be connected through a rotating shaft and a guide groove, and the guide groove can be linear or arc-shaped. Alternatively, the fourth support plate 240 and the second swing arm 520 can be connected through a virtual shaft.

[0264] FIG. 46 is an exploded view of the structure of the first fixed frame 310, the first swing arm 510, the second swing arm 520 and the second fixed frame 320 provided in the embodiments of the present application. Referring to FIG. 46, further, the first swing arm 510 and the first support plate 210 can be connected through a third matching shaft 514 and a third matching groove 216, and the extending direction of the third matching shaft 514 can be parallel to the first direction X. Among them, the first swing arm 510 can include the third matching shaft 514, and the first support plate 210 can include the third matching groove 216.

[0265] Similarly, the second swing arm 520 and the fourth support plate 240 can be connected through a fourth matching shaft 524 and a fourth matching groove 246, and the extending direction of the fourth matching shaft 524 can be parallel to the first direction X. Among them, the second swing arm 520 can include the fourth matching shaft 524, and the fourth support plate 240 can include the fourth matching groove 246.

[0266] FIG. 47 is a structural view of the first swing arm 510 and the second swing arm 520 provided in the embodiments of the present application. FIG. 48 is another structural view of the first swing arm 510 and the second swing arm 520 provided in the embodiments of the present application.

[0267] As shown in FIGS. 47 and 48, the first swing arm 510 and the second swing arm 520 together constitute a group of swing arms. In some embodiments, the rotating mechanism 10 can include two groups of swing arms, and the structures of the two groups of swing arms can be different. For example, in one group of swing arms: the first swing arm 510 can have the third matching shaft 514, and the second swing arm 520 can have the fourth matching shaft 524. In another group of swing arms: the first swing arm 510 can omit the third matching shaft 514, and the second swing arm 520 can omit the fourth matching shaft 524.

[0268] For the sake of distinction, the following will refer to the swing arm group with the third matching shaft 514 and the fourth matching shaft 524 as the first group 50A, and the swing arm group without the third matching shaft 514 and the fourth matching shaft 524 as the second group 50B.

[0269] With reference to FIG. 47, exemplary, in the first group 50A, the third matching shaft 514 and the first slider 513 can be arranged along the first direction X, and the second end 510B of the first swing arm can have two first sliders 513, and the third matching shaft 514 can be located between the two first sliders 513. Through the above arrangement, it is beneficial to reduce the occupation space of the third matching shaft 514 in the first direction X. Correspondingly, the third matching groove 216 and the third guide groove 215 can be arranged along the first direction X. Exemplary, the first support plate 210 can have two third guide grooves 215, and the third matching groove 216 can be located between the two third guide grooves 215. Through the above arrangement, the third matching shaft 514 can slide in the third matching groove 216, so as to slide-connect the first swing arm 510 and the first support plate 210.

[0270] Exemplary, in the first group 50A, the fourth matching shaft 524 and the second slider 523 can be arranged along the first direction X, and the second end 520B of the second swing arm can have two second sliders 523, and the fourth matching shaft 524 can be located between the two second sliders 523. Through the above arrangement, it is beneficial to reduce the occupation space of the fourth matching shaft 524 in the first direction X. Correspondingly, the fourth matching groove 246 and the fourth guide groove 245 can be arranged along the first direction X. Exemplary, the second support plate 220 can have two fourth guide grooves 245, and the fourth matching groove 246 can be located between the two fourth guide grooves 245. Through the above arrangement, the fourth matching shaft 524 can slide in the fourth matching groove 246, so as to slide-connect the second swing arm 520 and the second support plate 220.

[0271] In addition, in some other embodiments, the first swing arm 510 comprises the third matching groove 216, and the first support plate 210 comprises the third matching shaft 514; the second swing arm 520 comprises the fourth matching groove 246, and the first support plate 210 comprises the fourth matching shaft 524.

[0272] FIG. 49 is a sectional view along the F-F sectional line of the rotating mechanism 10 in FIG. 9 in the unfolded state; FIG. 50 is a sectional view along the F-F sectional line of the rotating mechanism 10 in FIG. 9 in the transition between the unfolded state and the folded state; and FIG. 51 is a sectional view along the F-F sectional line of the rotating mechanism 10 in FIG. 9 in the folded state.

[0273] Further, referring to FIG. 49, when the rotating mechanism 10 is in the unfolded state: in the direction perpendicular to the support plane S (i.e., the third direction Z), the third matching groove 216 can include a first surface 2161 and a second surface 2162 arranged in sequence, and the second surface 2162 can be located between the first surface 2161 and the support plane S. For example, in the third direction Z, the first surface 2161 can be the lower groove wall of the third matching groove 216 in FIG. 49, and the second surface 2162 can be the upper groove wall of the third matching groove 216 in FIG. 49.

[0274] In the second direction Y, the distance between the first end 2163 of the first surface and the main shaft 100 can be greater than the distance between the second end 2165 of the first surface and the main shaft 100, and in the direction perpendicular to the support plane S, the distance between the first end 2163 of the first surface and the support plane S can be greater than the distance between the second end 2165 of the first surface and the support plane S. For example, the first end 2163 of the first surface can be the left end of the first surface 2161 in FIG. 49, and the second end 2165 of the first surface can be the right end of the first surface 2161 in FIG. 49. In the second direction Y, the first surface 2161 can be inclined toward the support plane S.

[0275] Similarly, when the rotating mechanism 10 is in the unfolded state: in the direction perpendicular to the support plane S (i.e., the third direction Z), the fourth matching groove 246 includes a third surface 2461 and a fourth surface 2462 arranged in sequence, and the fourth surface 2462 is located between the third surface 2461 and the support plane S. For example, in the third direction Z, the third surface 2461 can be the lower groove wall of the fourth matching groove 246 in FIG. 49, and the fourth surface 2462 can be the upper groove wall of the fourth matching groove 246 in FIG. 49.

[0276] In the second direction Y, the distance between the first end 2463 of the third surface and the main shaft 100 can be greater than the distance between the second end 2465 of the third surface and the main shaft 100, and in the direction perpendicular to the support plane S, the distance between the first end 2463 of the third surface and the support plane S can be greater than the distance between the second end 2465 of the third surface and the support plane S. For example, the first end 2463 of the third surface can be the right end of the third surface 2461 in FIG. 49, and the second end 2465 of the third surface can be the left end of the third surface 2461 in FIG. 49. In the second direction Y, the third surface 2461 can be inclined away from the support plane S.

[0277] With the above arrangement, referring to FIGS. 49, 50 and 51, in the process of the rotating mechanism 10 converting between the unfolded state and the folded state, the third matching groove 216 can play a guiding role on the third matching shaft 514, thereby limiting the relative movement between the first swing arm 510 and the first support plate 210. Similarly, the fourth matching groove 246 can play a guiding role on the fourth matching shaft 524, thereby limiting the relative movement between the second swing arm 520 and the second support plate 220.

[0278] In some embodiments, continuing to refer to FIGS. 15 and 16, the main shaft 100 can include a first fixed rod 141 and a second fixed rod 142 arranged in sequence along the second direction Y, wherein the first fixed rod 141 and the second fixed rod 142 both extend along the first direction X. The first end 510A of the first swing arm can be sleeved outside the first fixed rod 141, so that the first end 510A of the first swing arm can be rotatably connected with the main shaft 100, and the first end 520A of the second swing arm can be sleeved outside the second fixed rod 142, so that the first end 520A of the second swing arm can be rotatably connected with the main shaft 100.

[0279] Based on the above structure, the main shaft 100 can further include elastic members and a damping sliding block 150. The elastic members can be arranged on the main shaft 100 along the first direction X, and the damping sliding block 150 can be slidingly connected with the main shaft 100 along the first direction X. For example, the number of elastic members can be two. For example, the elastic members can include a first elastic body 131 and a second elastic body 132, the first elastic body 131 can be sleeved on the first fixed rod 141, and the second elastic body 132 can be sleeved on the second fixed rod 142.

[0280] The first fixed rod 141 and the second fixed rod 142 can both be slidingly connected with the damping sliding block 150. The number of damping sliding blocks 150 can be two, and the two damping sliding blocks 150 can be arranged along the first direction X. The first end of the elastic member is connected with one of the damping sliding blocks 150, and the second end of the elastic member is connected with the other damping sliding block 150. As shown in FIGS. 42 and 7, the first group 50A is located on one side of the damping sliding block 150 away from the first end of the elastic member, and the second group 50B is located on one side of the damping sliding block 150 away from the second end of the elastic member.

[0281] Alternatively, in some other examples, the number of damping sliding blocks 150 can also be one, the first end of the elastic member can be connected with the main outer shaft 101, and the second end of the elastic member can be connected with the damping sliding block 150.

[0282] Further, as shown in FIG. 52 and FIG. 48, the damping slider 150 can include a first concave-convex surface 151, the first end 510A of the first swing arm can include a second concave-convex surface 519 cooperating with the first concave-convex surface 151, the damping slider 150 can include a third concave-convex surface 152, and the first end 520A of the second swing arm can include a fourth concave-convex surface 529 cooperating with the third concave-convex surface 152.

[0283] For example, the first concave-convex surface 151 is adjacent to the through hole of the damping slider 150, and in the direction around the central axis of the through hole of the damping slider 150, the first concave-convex surface 151 can include alternating convex and concave surfaces. The second concave-convex surface 519 can be adjacent to the through hole of the first swing arm 510, and in the direction around the central axis of the through hole of the first swing arm 510, the second concave-convex surface 519 can include alternating convex and concave surfaces. Further, part of the second concave-convex surface 519 can be located in the first swing arm 510 of the first group 50A, and part of the second concave-convex surface 519 can also be located in the first swing arm 510 of the second group 50B.

[0284] Similarly, the third concave-convex surface 152 is adjacent to the through hole of the damping slider 150, and in the direction around the central axis of the second through hole of the damping slider 150, the third concave-convex surface 152 can include alternating convex and concave surfaces. The fourth concave-convex surface 529 can be adjacent to the through hole of the second swing arm 520, and in the direction around the central axis of the through hole of the second swing arm 520, the fourth concave-convex surface 529 can include alternating convex and concave surfaces. Further, part of the fourth concave-convex surface 529 can be located in the first swing arm 510 of the first group 50A, and part of the fourth concave-convex surface 529 can also be located in the first swing arm 510 of the second group 50B.

[0285] When the rotating mechanism 10 rotates to the first position, the elastic body is in the first compression state. When the rotating mechanism 10 rotates to the second position, the elastic body is in the second compression state. In some examples, during the rotation of the rotating mechanism 10 from the first position to the second position, the rotating mechanism 10 can be in a state of transition from the unfolded state to the folded state. At this time, the length of the elastic member in the first compression state is greater than the length of the elastic member in the second compression state.

[0286] During the rotation of the rotation mechanism 10 from the first position to the second position, the first swing arm 510 rotates relative to the main shaft 100, and the first swing arm 510 rotates relative to the first fixed rod 141. Since the first concave-convex surface 151 of the damping slider 150 cooperates with the second concave-convex surface 519 of the first swing arm 510, the first swing arm 510 drives the damping slider 150 to slide relative to the first fixed rod 141 in the first direction X, and the damping slider 150 drives the first elastic body 131 to compress and deform. The elastic restoring force of the first elastic body 131 acts as a damping force, so that the first swing arm 510 has a damping effect when rotating relative to the main shaft 100.

[0287] At the same time, when the second swing arm 520 rotates relative to the main shaft 100, the second swing arm 520 rotates relative to the fourth fixed rod. Since the third concave-convex surface 152 of the damping slider 150 cooperates with the fourth concave-convex surface 529 of the second swing arm 520, the second swing arm 520 drives the damping slider 150 to slide relative to the second fixed rod 142 in the first direction X, and the damping slider 150 drives the second elastic body 132 to compress and deform. The elastic restoring force of the second elastic body 132 acts as a damping force, so that the second swing arm 520 has a damping effect when rotating relative to the main shaft 100.

[0288] In some embodiments, as shown in FIG. 53, the main shaft 100 can further include a synchronous slider 160, which can be connected with the main shaft 100 to slide in the first direction X. The synchronous slider 160 can be located between the two through holes of the first end 510A of the first swing arm, and between the two through holes of the first end 520A of the second swing arm.

[0289] For example, the synchronous slider 160 can be sleeved on the first fixed rod 141 and the second fixed rod 142, so that the synchronous slider 160 can slide relative to the first fixed rod 141 and the second fixed rod 142. In the first group 50A, one end of the synchronous slider 160 can be located between the two through holes of the first end 510A of the first swing arm, and the other end of the synchronous slider 160 can be located between the two through holes of the first end 520A of the second swing arm.

[0290] Further, the synchronous slider 160 can further include a first helical surface 161, and the first end 510A of the first swing arm can further include a second helical surface 518 cooperating with the first helical surface 161. Similarly, the synchronous slider 160 can further include a third helical surface 162, and the first end 520A of the second swing arm can further include a fourth helical surface 528 cooperating with the third helical surface 162.

[0291] Through the above arrangement, when the first swing arm 510 rotates relative to the main shaft 100, the first end 510A of the first swing arm can drive the synchronous slider 160 to slide relative to the main shaft 100 along the first direction X due to the cooperation between the first helical surface 161 and the second helical surface 518, and the synchronous slider 160 can drive the first end 520A of the second swing arm to rotate relative to the main shaft 100 due to the cooperation between the third helical surface 162 and the fourth helical surface 528, so as to realize the synchronous movement of the first swing arm 510 and the second swing arm 520.

[0292] Of course, in some other embodiments, the first swing arm 510 and the second swing arm 520 can also realize synchronous movement through other structures, which are not limited in the embodiments of the present application.

[0293] For example, the first end 510A of the first swing arm can further include a first gear, and the main shaft 100 can further include a second gear engaged with the first gear. The first end 520A of the second swing arm can further include a third gear, and the main shaft 100 can further include a fourth gear engaged with the third gear. The second gear is further engaged with the fourth gear.

[0294] For example, the main shaft 100 can further include a third fixed rod and a fourth fixed rod arranged between the first fixed rod 141 and the second fixed rod 142, and the extending directions of the third fixed rod and the fourth fixed rod are both parallel to the first direction X. The first gear, the second gear, the fourth gear and the third gear can be sequentially sleeved outside the first fixed rod 141, the third fixed rod, the fourth fixed rod and the second fixed rod 142, so as to arrange the first gear, the second gear, the fourth gear and the third gear along the second direction Y in sequence.

[0295] When the first swing arm 510 rotates relative to the main shaft 100, the first gear drives the second gear to rotate, so that the second gear drives the fourth gear to rotate, and the fourth gear drives the third gear to rotate, so as to rotate the second swing arm 520 relative to the main shaft 100. Through the above arrangement, when the first swing arm 510 rotates relative to the main shaft 100, the second swing arm 520 can be rotated relative to the main shaft 100, so as to realize the synchronous movement of the first swing arm 510 and the second swing arm 520.

[0296] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotating mechanism, characterized by comprising: The utility model relates to a rotating mechanism (10) and a door (1) comprising the rotating mechanism (10), the rotating mechanism (10) comprises: a main shaft (100) extending along a first direction (X); a first rotating shaft assembly (10A) comprising a first rotating member (410) and a first fixed frame (310), a first end (410A) of the first rotating member being rotatably connected to the main shaft (100), a second end (410B) of the first rotating member being movably connected to the first fixed frame (310), the first fixed frame (310) extending in a direction parallel to the first direction (X); a second rotating shaft assembly (10B) comprising a second rotating member (420) and a second fixed frame (320), a first end (420A) of the second rotating member being rotatably connected to the main shaft (100), a second end (420B) of the second rotating member being movably connected to the second fixed frame (320), the second fixed frame (320) extending in a direction parallel to the first direction (X); a support door panel (200) comprising a first support plate (210), a second support plate (220), a third support plate (230) and a fourth support plate (240), the first support plate (210) being connected to the first fixed frame (310), the second support plate (220) being rotatably connected to the first rotating member (410), the second support plate (220) having a first axis (L1) relative to an axis of rotation of the first rotating member (410), the third support plate (230) being rotatably connected to the second rotating member (420), the third support plate (230) having a second axis (L2) relative to an axis of rotation of the second rotating member (420), the fourth support plate (240) being connected to the second fixed frame (320); when the rotating mechanism (10) is in an unfolded state, the first support plate (210), the second support plate (220), the third support plate (230) and the fourth support plate (240) are arranged in sequence along a second direction (Y), the second end (410B) of the first rotating member, the first end (410A) of the first rotating member, the first end (420A) of the second rotating member and the second end (420B) of the second rotating member are arranged in sequence along the second direction (Y), the first support plate (210), the second support plate (220), the third support plate (230) and the fourth support plate (240) jointly form a support plane (S), the first axis (L1) and the second axis (L2) both intersect the second direction (Y), the first axis (L1) and the second axis (L2) both intersect a direction perpendicular to the support plane (S), and the second direction (Y) is perpendicular to the first direction (X); during a transition of the rotating mechanism (10) from the unfolded state to a folded state, the first support plate (210), the second support plate (220), the third support plate (230) and the fourth support plate (240) all rotate relative to the main shaft (100). The rotating mechanism (10) is in the folded state: the support door plate (200) and the main shaft (100) together constitute a containing space (P).

2. The swivel mechanism of claim 1, wherein The first rotating part (410) and the second support plate (220) are rotatably connected through a first matching shaft (412) and a first matching hole (221); wherein, the first rotating part (410) comprises the first matching shaft (412), and the second support plate (220) comprises the first matching hole (221), or the second support plate (220) comprises the first matching shaft (412), and the first rotating part (410) comprises the first matching hole (221); The second rotating part (420) and the third support plate (230) are rotatably connected through a second matching shaft (422) and a second matching hole (231); wherein, the second rotating part (420) comprises the second matching shaft (422), and the third support plate (230) comprises the second matching hole (231), or the third support plate (230) comprises the second matching shaft (422), and the second rotating part (420) comprises the second matching hole (231).

3. The swivel mechanism of claim 2, wherein, The extension direction of the first matching shaft (412) and the extension direction of the second matching shaft (422) are both parallel to the first direction (X).

4. A swivel mechanism according to claim 2 or 3, characterized in that The rotation axis of the first rotating part (410) relative to the main shaft (100) is a third axis (L3), and the rotation axis of the second rotating part (420) relative to the main shaft (100) is a fourth axis (L4); During the conversion of the rotating mechanism (10) from the unfolded state to the folded state, the first rotating part (410) rotates relative to the third axis (L3) along a first rotation direction (F1), and the first matching shaft (412) rotates relative to the third axis (L3) along the first rotation direction (F1); the second rotating part (420) rotates relative to the fourth axis (L4) along a second rotation direction (F2), and the second matching shaft (422) rotates relative to the fourth axis (L4) along the second rotation direction (F2); During the conversion of the rotating mechanism (10) from the folded state to the unfolded state, the first rotating part (410) rotates relative to the third axis (L3) along a third rotation direction (F3), and the first matching shaft (412) rotates relative to the third axis (L3) along the third rotation direction (F3), the third rotation direction (F3) being opposite to the first rotation direction (F1); the second rotating part (420) rotates relative to the fourth axis (L4) along a fourth rotation direction (F4), and the second matching shaft (422) rotates relative to the fourth axis (L4) along the fourth rotation direction (F4), the fourth rotation direction (F4) being opposite to the second rotation direction (F2).

5. A swivel mechanism according to any one of claims 2-4, characterized in that the third end (410C) of the first rotating member and the fourth end (410D) of the first rotating member are arranged along the first direction (X), and the third end (420C) of the second rotating member and the fourth end (420D) of the second rotating member are arranged along the first direction (X); when the rotating mechanism (10) is in the unfolded state: the orthographic projection of the third end (410C) of the first rotating member on a first reference plane, the orthographic projection of the first cooperating shaft (412) on the first reference plane, and the orthographic projection of the fourth end (410D) of the first rotating member on the first reference plane are sequentially arranged along the first direction (X); the orthographic projection of the third end (420C) of the second rotating member on the first reference plane, the orthographic projection of the second cooperating shaft (422) on the first reference plane, and the orthographic projection of the fourth end (420D) of the second rotating member on the first reference plane are sequentially arranged along the first direction (X); the first reference plane is perpendicular to the support plane (S), and the first reference plane is also perpendicular to the second direction (Y).

6. The rotating mechanism according to any one of claims 2-5, characterized in that, when the rotating mechanism (10) is in the unfolded state: the orthographic projection of the first end (410A) of the first rotating member on a second reference plane at least partially overlaps with the orthographic projection of the first cooperating shaft (412) on the second reference plane, and the orthographic projection of the first end (420A) of the second rotating member on the second reference plane at least partially overlaps with the orthographic projection of the second cooperating shaft (422) on the second reference plane; the second reference plane is perpendicular to the support plane (S), and the second reference plane is also perpendicular to the first direction (X).

7. The rotating mechanism according to any one of claims 1-6, characterized in that, when the rotating mechanism (10) is in the unfolded state: in the second direction (Y), the first end (218) of the first support plate, the second end (219) of the first support plate, the first end (228) of the second support plate, the second end (229) of the second support plate, the first end (238) of the third support plate, the second end (239) of the third support plate, the first end (248) of the fourth support plate, and the second end (249) of the fourth support plate are sequentially arranged; the distance between the second end (229) of the second support plate and the first end (238) of the third support plate along the second direction (Y) is a first distance (D1). When the rotating mechanism (10) is in the folded state: in the second direction (Y), the distance between the first end (218) of the first support plate and the second end (249) of the fourth support plate is greater than the distance between the second end (219) of the first support plate and the first end (248) of the fourth support plate, in the second direction (Y), the distance between the first end (228) of the second support plate and the second end (239) of the third support plate is greater than the distance between the second end (229) of the second support plate and the first end (238) of the third support plate, the distance between the second end (229) of the second support plate and the first end (238) of the third support plate in the second direction (Y) is a second distance (D2), and the second distance (D2) is greater than the first distance (D1).

8. The swivel mechanism of claim 7, wherein, The second end (229) of the second support plate comprises a first matching surface (225), the first end (410A) of the first rotating piece comprises a first limiting surface (416), the first end (238) of the third support plate comprises a second matching surface (235), and the first end (420A) of the second rotating piece comprises a second limiting surface (426). When the rotating mechanism (10) is in the unfolded state: the first limiting surface (416) and the first matching surface (225) are in contact, and the second limiting surface (426) and the second matching surface (235) are in contact.

9. The rotating mechanism according to claim 7 or 8, wherein, The first rotating piece (410) comprises a first limiting groove (417) located between the first end (410A) of the first rotating piece and the second end (420B) of the second rotating piece, and the second rotating piece (420) comprises a second limiting groove (427) located between the first end (410A) of the first rotating piece and the second end (420B) of the second rotating piece; the first end (228) of the second support plate comprises a third matching surface (227), and the second end (239) of the third support plate comprises a fourth matching surface (237). When the rotating mechanism (10) is in the folded state: the third matching surface (227) is in contact with the groove bottom of the first limiting groove (417), and the fourth matching surface (237) is in contact with the groove bottom of the second limiting groove (427).

10. A swivel mechanism according to any one of claims 7-9, characterized in that The main shaft (100) comprises a main shaft body (1021) and a first protrusion (121) and a second protrusion (122) arranged on the main shaft body (1021), the first protrusion (121) and the second protrusion (122) are arranged at intervals along the second direction (Y), the first protrusion (121) comprises a first sub-face (1213) and a second sub-face (1215), the second protrusion (122) comprises a third sub-face (1223) and a fourth sub-face (1225), the first sub-face (1213) and the third sub-face (1223) are arranged along the second direction (Y), the second sub-face (1215) and the fourth sub-face (1225) are located between the first sub-face (1213) and the third sub-face (1223), and the second sub-face (1215), the fourth sub-face (1225) and the main shaft body (1021) jointly form a groove (1029); When the rotating mechanism (10) is in the unfolded state, the first end (228) of the second support plate is in contact with the first sub-face (1213), and the second end (239) of the third support plate is in contact with the third sub-face (1223); When the rotating mechanism (10) is in the folded state, the second end (229) of the second support plate is in contact with the second sub-face (1215), and the first end (238) of the third support plate is in contact with the fourth sub-face (1225).

11. The rotating mechanism according to any one of claims 1-10, wherein: The second support plate (220) and the main shaft (100) are connected by sliding through a first pin shaft (171) and a first guide groove (224), the extension direction of the first pin shaft (171) is parallel to the first direction (X); wherein the main shaft (100) comprises the first pin shaft (171), and the second support plate (220) comprises the first guide groove (224), or the main shaft (100) comprises the first guide groove (224), and the second support plate (220) comprises the first pin shaft (171); The third support plate (230) and the main shaft (100) are connected by sliding through a second pin shaft (172) and a second guide groove (234), the extension direction of the second pin shaft (172) is parallel to the first direction (X); wherein the main shaft (100) comprises the second pin shaft (172), and the third support plate (230) comprises the second guide groove (234), or the main shaft (100) comprises the second guide groove (234), and the third support plate (230) comprises the second pin shaft (172).

12. The swivel mechanism of claim 11, wherein, When the rotating mechanism 10 is in the unfolded state: In the second direction (Y), the first end (2241) of the first guide slot, the second end (2242) of the first guide slot, the second end (2342) of the second guide slot and the first end (2341) of the second guide slot are sequentially arranged in the orthographic projection on the support plane (S); The distance between the first end (2241) of the first guide slot and the support plane (S) is less than the distance between the second end (2242) of the first guide slot and the support plane (S), and the distance between the first end (2341) of the second guide slot and the support plane (S) is less than the distance between the second end (2342) of the second guide slot and the support plane (S).

13. The rotating mechanism according to claim 12, wherein, During the process of converting the rotating mechanism (10) from the unfolded state to the folded state, the first pin shaft (171) moves relative to the first guide slot (224) from the first end (2241) of the first guide slot to the second end (2242) of the first guide slot, and the second pin shaft (172) moves relative to the second guide slot (234) from the first end (2341) of the second guide slot to the second end (2342) of the second guide slot; During the process of converting the rotating mechanism (10) from the folded state to the unfolded state, the first pin shaft (171) moves relative to the first guide slot (224) from the second end (2242) of the first guide slot to the first end (2241) of the first guide slot, and the second pin shaft (172) moves relative to the second guide slot (234) from the second end (2342) of the second guide slot to the first end (2341) of the second guide slot.

14. The rotating mechanism according to any one of claims 1-13, wherein, The first end (410A) of the first rotating member and the main shaft (100) are rotatably connected through a first arc-shaped sliding block (413) and a first arc-shaped sliding slot (111), wherein the first end (410A) of the first rotating member comprises the first arc-shaped sliding block (413), and the main shaft (100) comprises the first arc-shaped sliding slot (111); or the first end (410A) of the first rotating member comprises the first arc-shaped sliding slot (111), and the main shaft (100) comprises the first arc-shaped sliding block (413). The first end (420A) of the second rotating member is rotatably connected with the main shaft (100) through a second arc-shaped sliding block (423) and a second arc-shaped sliding groove (112), wherein the first end (420A) of the second rotating member comprises the second arc-shaped sliding block (423), and the main shaft (100) comprises the second arc-shaped sliding groove (112); or the first end (420A) of the second rotating member comprises the second arc-shaped sliding groove (112), and the main shaft (100) comprises the second arc-shaped sliding block (423).

15. The rotating mechanism according to any one of claims 1-14, wherein, the second end (410B) of the first rotating member is rotatably connected with the first fixed frame (310) through a first connecting shaft (411), and the second end (420B) of the second rotating member is rotatably connected with the second fixed frame (320) through a second connecting shaft (421); when the rotating mechanism (10) is in the unfolded state, the first connecting shaft (411) and the second connecting shaft (421) are both intersected with the second direction (Y), and the first connecting shaft (411) and the second connecting shaft (421) are both intersected with a direction perpendicular to the support plane (S).

16. The swivel mechanism according to any one of claims 1-15, characterized in that the first fixed frame (310) and the first support plate (210) are rotatably connected through a third arc-shaped sliding block (311) and a third arc-shaped sliding groove (213), wherein the first fixed frame (310) comprises the third arc-shaped sliding block (311), and the first support plate (210) comprises the third arc-shaped sliding groove (213), or the first fixed frame (310) comprises the third arc-shaped sliding groove (213), and the first support plate (210) comprises the third arc-shaped sliding block (311); the second fixed frame (320) and the fourth support plate (240) are rotatably connected through a fourth arc-shaped sliding block (321) and a fourth arc-shaped sliding groove (243), wherein the second fixed frame (320) comprises the fourth arc-shaped sliding block (321), and the fourth support plate (240) comprises the fourth arc-shaped sliding groove (243), or the second fixed frame (320) comprises the fourth arc-shaped sliding groove (243), and the fourth support plate (240) comprises the fourth arc-shaped sliding block (321).

17. The rotating mechanism according to any one of claims 1-16, wherein, the first rotating member (410) and the first support plate (210) are slidably connected through a third connecting shaft (431) and a third guide groove (215), wherein the first rotating member (410) comprises the third connecting shaft (431), and the first support plate (210) comprises the third guide groove (215), or the first rotating member (410) comprises the third guide groove (215), and the first support plate (210) comprises the third connecting shaft (431). The second rotating member (420) and the fourth support plate (240) are slidingly connected through a fourth connecting shaft (451) and a fourth guide slot (245), wherein the second rotating member (420) comprises the fourth connecting shaft (451), the fourth support plate (240) comprises the fourth guide slot (245), or the second rotating member (420) comprises the fourth guide slot (245) and the fourth support plate (240) comprises the fourth connecting shaft (451).

18. The swivel mechanism of claim 17, wherein, When the rotating mechanism 10 is in the unfolded state: In the second direction (Y), the distance between the first end (2151) of the third guide slot and the main shaft (100) is greater than the distance between the second end (2153) of the third guide slot and the main shaft (100), and in the direction perpendicular to the support plane (S), the distance between the first end (2151) of the third guide slot and the support plane (S) is greater than the distance between the second end (2153) of the third guide slot and the support plane (S); In the second direction (Y), the distance between the first end (2451) of the fourth guide slot and the main shaft (100) is greater than the distance between the second end (2453) of the fourth guide slot and the main shaft (100), and in the direction perpendicular to the support plane (S), the distance between the first end (2451) of the fourth guide slot and the support plane (S) is greater than the distance between the second end (2453) of the fourth guide slot and the support plane (S).

19. The rotating mechanism according to claim 18, wherein, During the process of converting the rotating mechanism (10) from the unfolded state to the folded state, the third connecting shaft (431) moves relative to the third guide slot (215) from the first end (2151) of the third guide slot to the second end (2153) of the third guide slot, and the fourth connecting shaft (451) moves relative to the fourth guide slot (245) from the first end (2451) of the fourth guide slot to the second end (2453) of the fourth guide slot. During the process of converting the rotating mechanism (10) from the folded state to the unfolded state, the third connecting shaft (431) moves relative to the third guide slot (215) from the second end (2153) of the third guide slot to the first end (2151) of the third guide slot, and the fourth connecting shaft (451) moves relative to the fourth guide slot (245) from the second end (2453) of the fourth guide slot to the first end (2451) of the fourth guide slot.

20. The rotating mechanism according to any one of claims 1-19, wherein, The first rotating shaft assembly (10A) further comprises a first swing arm (510), a first end (510A) of the first swing arm is rotationally connected with the main shaft (100), the first swing arm (510) is parallel to the first direction (X) relative to the rotation axis of the main shaft (100), a second end (510B) of the first swing arm is slidingly connected with the first fixed frame (310), and the sliding direction of the first swing arm (510) relative to the first fixed frame (310) intersects with the extending direction of the first fixed frame (310); The second rotating shaft assembly (10B) further comprises a second swing arm (520), a first end (520A) of the second swing arm is rotationally connected with the main shaft (100), the second swing arm (520) is parallel to the first direction (X) relative to the rotation axis of the main shaft (100), a second end (520B) of the second swing arm is slidingly connected with the second fixed frame (320), and the sliding direction of the second swing arm (520) relative to the second fixed frame (320) intersects with the extending direction of the second fixed frame (320).

21. The rotating mechanism according to claim 20, wherein The first swing arm (510) and the first support plate (210) are slidingly connected through a third matching shaft (514) and a third matching groove (216), the extending direction of the third matching shaft (514) is parallel to the first direction (X); wherein the first swing arm (510) comprises the third matching shaft (514), the first support plate (210) comprises the third matching groove (216), or the first swing arm (510) comprises the third matching groove (216) and the first support plate (210) comprises the third matching shaft (514); The second swing arm (520) and the fourth support plate (240) are slidingly connected through a fourth matching shaft (524) and a fourth matching groove (246), the extending direction of the fourth matching shaft (524) is parallel to the first direction (X); wherein the second swing arm (520) comprises the fourth matching shaft (524), the fourth support plate (240) comprises the fourth matching groove (246), or the second swing arm (520) comprises the fourth matching groove (246) and the first support plate (210) comprises the fourth matching shaft (524).

22. The swivel mechanism of claim 21, wherein, When the rotating mechanism (10) is in the unfolded state: In the direction perpendicular to the support plane (S), the third matching groove (216) comprises a first surface (2161) and a second surface (2162) arranged in sequence, the second surface (2162) is located between the first surface (2161) and the support plane (S), the fourth matching groove (246) comprises a third surface (2461) and a fourth surface (2462) arranged in sequence, and the fourth surface (2462) is located between the third surface (2461) and the support plane (S); In the second direction (Y), a first end (2163) of the first surface is farther from the main shaft (100) than a second end (2165) of the first surface, and in a direction perpendicular to the support plane (S), a distance between the first end (2163) of the first surface and the support plane (S) is greater than a distance between the second end (2165) of the first surface and the support plane (S); In the second direction (Y), a first end (2463) of the third surface is farther from the main shaft (100) than a second end (2465) of the third surface, and in a direction perpendicular to the support plane (S), a distance between the first end (2463) of the third surface and the support plane (S) is greater than a distance between the second end (2465) of the third surface and the support plane (S).

23. A foldable electronic device, characterized by The folding electronic device (1) comprises: a flexible screen (30), a first structural member (21), a second structural member (22), and the rotating mechanism (10) according to any one of claims 1-22; the first structural member (21) and the second structural member (22) are connected to two sides of the rotating mechanism (10), the flexible screen (30) is located on the same side of the first structural member (21) and the second structural member (22), and is connected to the first structural member (21) and the second structural member (22); when the folding electronic device (1) is in the unfolded state, a support plane (S) of the rotating mechanism (10) is used to support the flexible screen (30); when the folding electronic device (1) is in the folded state, a support door plate (200) of the rotating mechanism (10) and a main shaft (100) jointly form an accommodation space (P), and part of the flexible screen (30) is located in the accommodation space (P).

Images