A rotating shaft mechanism, a supporting device and a folding screen device

Abstract

The present application provides a hinge mechanism, a supporting device and a folding screen device, which relates to the technical field of folding screen devices, and is used to solve the problem of how to improve the supporting performance of the supporting device of the folding screen device on the folding screen. Specifically, the hinge mechanism includes a base, a first swing arm, a first support member and an elastic support member. The first swing arm is rotatably connected to the base, and the first swing arm can rotate relative to the base to make the hinge mechanism move between the unfolded state and the folded state. The first support member is located on the front side of the first swing arm; the end of the first support member away from the base is rotatably connected to the first swing arm. The elastic support member includes a first supporting portion, the first supporting portion is stacked on the front side of the first support member and the base, and the first supporting portion is fixed to the first support member. The hinge mechanism provided in the present application is used to realize the folding of the folding screen.

Description

Technical Field

[0001] The present application relates to the technical field of folding screen devices, and in particular to a hinge mechanism, a supporting device and a folding screen device. Background Art

[0002] With the advancement of technology, large-screen devices are becoming more and more popular among consumers. In order to solve the problem that traditional tablet devices are large in size and inconvenient to carry, foldable screen devices came into being. The foldable screen device includes a supporting device for supporting the foldable screen, and the supporting device includes two side shells and a hinge mechanism connected between the two side shells. Among them, the hinge mechanism is used to support the bendable part of the foldable screen. Since the rotation radius of the foldable screen is smaller than the rotation radius of the hinge mechanism during the bending process of the foldable screen device, the hinge mechanism needs to be able to extend, that is, the base of the hinge mechanism needs to move relative to the two side shells in a direction away from the foldable screen to avoid the bendable part of the foldable screen.

[0003] In the related art, in order to allow the hinge mechanism to extend and shorten so as to accommodate the bendable part of the folding screen when the folding screen device is in a folded state, and to support the folding screen when the folding screen device is in an unfolded state, the elastic support member on the hinge mechanism for supporting the folding screen has a fixed end relatively fixed to the folding screen and a freely suspended end. During the unfolding and folding movement of the folding screen device, the freely suspended end of the elastic support member may scratch other components and cause damage to other components and produce abnormal noises, thereby reducing the reliability of the hinge mechanism and affecting the user experience. Summary of the invention

[0004] The embodiments of the present application provide a hinge mechanism, a supporting device and a folding screen device, which are used to solve the problem of how to improve the reliability of the hinge mechanism.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a pivot mechanism, which includes a base, a first swing arm, a first support member, and an elastic support member. The first swing arm is rotatably connected to the base, and the first swing arm can rotate relative to the base to enable the pivot mechanism to move between an unfolded state and a folded state. The first support member is located at the front side of the first swing arm; an end of the first support member away from the base is rotatably connected to the first swing arm. The elastic support member includes a first support portion, the first support portion is stacked on the front side of the first support member and the base, and the first support portion is fixed to the first support member.

[0007] The hinge mechanism provided in the embodiment of the present application has an end of the first support member away from the base that is rotatably connected to the first swing arm, and the first swing arm is rotatably connected to the base, so that when the first swing arm rotates relative to the base to move the hinge mechanism from an unfolded state to a folded state, the distance between the end of the first support member away from the base and the rotation axis of the first swing arm and the base remains unchanged. When the folding screen is bent and the hinge mechanism is extended, the first support member can slide relative to the folding screen toward the base. Therefore, the two ends of the elastic support member can be respectively fixed to the first support member and other components, thereby preventing the free end of the elastic support member from scratching the folding screen or other components of the hinge mechanism and generating abnormal noise, thereby improving the reliability of the hinge mechanism and the user experience.

[0008] In some possible implementations of the first aspect, the rotation axis of the first swing arm and the base is the first axis. The hinge mechanism also includes a second swing arm, which is rotatably connected to the base, and the rotation axis of the second swing arm and the base is the second axis, and the second axis is parallel to the first axis; the second swing arm is slidably connected to the first support member in a direction perpendicular to the first axis. In this way, the second swing arm can control the inclination angle of the first support member relative to the front side surface of the base, so as to avoid the bent portion of the folding screen when the hinge mechanism is in a folded state, and support the bendable portion of the folding screen when the hinge mechanism is in an unfolded state.

[0009] In some possible implementations of the first aspect, when the first swing arm rotates relative to the base to move the rotating shaft mechanism from the unfolded state to the folded state, the second swing arm drives the end of the first support member close to the base to tilt toward the back side of the first swing arm relative to the end of the first support member away from the base, and the elastic support member bends. In this way, the first support member and the base can form a screen-accommodating space that is approximately in the shape of a partial water drop, and then the elastic support member can be bent to form a screen-accommodating space that is approximately in the shape of a water drop, and the bendable part of the foldable screen can be folded into a water drop shape to reduce the inner folding angle of the bendable part, reduce the probability of creases on the foldable screen, ensure the display effect of the foldable screen, and extend the service life of the foldable screen.

[0010] In some possible implementations of the first aspect, the hinge mechanism further includes a first connecting member. The first connecting member is rotatably connected to one of the second swing arm and the first swing arm, and is slidably connected to the other of the second swing arm and the first swing arm. When the first swing arm rotates relative to the base so that the hinge mechanism moves from the unfolded state to the folded state, the end of the first connecting member away from the base moves in a direction perpendicular to the first axis in a direction away from the base, and when the first swing arm rotates relative to the base so that the hinge mechanism moves from the folded state to the unfolded state, the end of the first connecting member away from the base moves in a direction perpendicular to the first axis in a direction close to the base. In this way, when the hinge mechanism moves from the unfolded state to the folded state, the length of the hinge mechanism increases, and when the hinge mechanism moves from the folded state to the unfolded state, the length of the hinge mechanism decreases. Therefore, the hinge mechanism will not cause stretching, compression and other forces to the folding screen during the folding and unfolding process, thereby extending the service life of the folding screen.

[0011] In some possible implementations of the first aspect, the rotating shaft mechanism further includes a first rotating shaft, the first rotating shaft is disposed on one of the second swing arm and the first connecting member, the other of the second swing arm and the first connecting member has a first mounting hole, and the first rotating shaft is passed through the first mounting hole to achieve a rotatable connection between the first connecting member and the second swing arm. In this way, the first connecting member and the second swing arm are rotatably connected via the rotating shaft, and the connection is reliable and easy to assemble.

[0012] In some possible implementations of the first aspect, the first support member has a first slide groove. A portion of the first rotating shaft is slidably disposed in the first slide groove. In this way, the first rotating shaft can be used to realize the rotatable connection between the first connecting member and the second swing arm, and can also be used to realize the slidable connection between the first supporting member and the second swing arm, which simplifies the connection structure, makes the structure of the rotating shaft mechanism more compact, and facilitates the assembly of the rotating shaft mechanism.

[0013] In some possible implementations of the first aspect, the rotating shaft mechanism further includes a third swing arm and a second support member. The third swing arm and the first swing arm are respectively disposed on opposite sides of the base, and the third swing arm is rotatably connected to the base; the third swing arm can rotate relative to the base to enable the rotating shaft mechanism to move between an unfolded state and a folded state. The second support member is located at the front side of the third swing arm, and an end of the second support member away from the base is rotatably connected to the third swing arm; the elastic support member further includes a second support portion, which is stacked and disposed on the front side of the second support member and fixed to the second support member.

[0014] In this way, since the end of the second support member away from the base can be rotatably connected to the third swing arm, and the third swing arm can be rotatably connected to the base, when the third swing arm rotates relative to the base to move the shaft mechanism from the unfolded state to the folded state, the distance between the end of the second support member away from the base and the rotation axis of the third swing arm and the base remains unchanged, and when the folding screen is bent and the shaft mechanism is extended, the second support member can slide relative to the folding screen toward the base. Therefore, the two ends of the elastic support member can be fixed to the first support member and the second support member respectively, thereby providing a continuous and complete support surface for the folding screen, improving the support performance of the support device for the folding screen, and further improving the impact resistance of the folding screen.

[0015] In some possible implementations of the first aspect, the pivot mechanism further includes a third swing arm, a second connecting member, and a second supporting member. The third swing arm and the first swing arm are respectively disposed on opposite sides of the base, and the third swing arm is rotatably connected to the base; the third swing arm can rotate relative to the base to enable the pivot mechanism to move between an unfolded state and a folded state. The second connecting member is rotatably connected to the third swing arm. The second supporting member is located at the front side of the third swing arm, and an end of the second supporting member away from the base is rotatably connected to the second connecting member; the elastic supporting member further includes a second supporting portion, which is stacked and disposed on the front side of the second supporting member and fixed to the second supporting member.

[0016] In this way, since the end of the second support member away from the base can be rotatably connected to the second connecting member, the second connecting member can be rotatably connected to the third swing arm, and the third swing arm can be rotatably connected to the base, when the third swing arm rotates relative to the base to move the shaft mechanism from the unfolded state to the folded state, when the second connecting member is relatively fixed to the folding screen, the second support member is also relatively fixed to the folding screen, thereby making the end of the elastic support member away from the first supporting member relatively fixed to the folding screen. Therefore, the elastic support member can provide a continuous and complete supporting surface for the folding screen, and can also provide the folding screen with the largest possible supporting area, thereby improving the supporting performance of the supporting device for the folding screen, thereby improving the impact resistance of the folding screen.

[0017] In some possible implementations of the first aspect, the rotation axis of the third swing arm and the base is the third axis. The hinge mechanism also includes a fourth swing arm, which is rotatably connected to the base; the rotation axis of the fourth swing arm and the base is the fourth axis, and the fourth axis is parallel to the third axis; the fourth swing arm or the third swing arm is slidably connected to the second support member in a direction perpendicular to the fourth axis. In this way, the fourth swing arm or the third swing arm can control the inclination angle of the second support member relative to the front side surface of the base, so as to avoid the bent portion of the folding screen when the hinge mechanism is in the folded state, and support the bendable portion of the folding screen when the hinge mechanism is in the unfolded state.

[0018] In some possible implementations of the first aspect, when the third swing arm rotates relative to the base to move the rotating shaft mechanism from the unfolded state to the folded state, the fourth swing arm or the third swing arm drives the end of the second support member close to the base to tilt toward the back side of the third swing arm relative to the end of the second support member away from the base. In this way, the first support member, the second support member and the base can form a screen-accommodating space similar to a water droplet shape, and then the elastic support member can be bent to form a screen-accommodating space similar to a water droplet shape, and the bendable part of the foldable screen can be folded into a water droplet shape to reduce the inner folding angle of the bendable part, reduce the probability of creases on the foldable screen, ensure the display effect of the foldable screen, and extend the service life of the foldable screen.

[0019] In some possible implementations of the first aspect, when the first swing arm and the third swing arm rotate relative to the base so that the rotating shaft mechanism is in an unfolded state, the first support member and the second support member are located in the same plane, and the elastic support member is flattened to form a support surface. In this way, the first support member and the second support member can form a reliable support for the elastic support member, which is conducive to improving the flatness of the elastic support member, and further, the elastic support member can form a reliable support for the bendable part of the folding screen, thereby improving the flatness of the folding screen.

[0020] In some possible implementations of the first aspect, the fourth swing arm is also slidably connected to the second connecting member. When the third swing arm rotates relative to the base so that the rotating shaft mechanism moves from the unfolded state to the folded state, the end of the second connecting member away from the base moves in a direction perpendicular to the third axis in a direction away from the base. When the third swing arm rotates relative to the base so that the rotating shaft mechanism moves from the folded state to the unfolded state, the end of the second connecting member away from the base moves in a direction perpendicular to the third axis in a direction close to the base. In this way, when the rotating shaft mechanism moves from the unfolded state to the folded state, the length of the rotating shaft mechanism increases, and when the rotating shaft mechanism moves from the folded state to the unfolded state, the length of the rotating shaft mechanism decreases. Therefore, the rotating shaft mechanism will not cause stretching, compression and other forces to the folding screen during the folding and unfolding process, thereby extending the service life of the folding screen.

[0021] In some possible implementations of the first aspect, the second connecting member has a second slide groove. The fourth swing arm has a first sliding portion, and the first sliding portion is slidably connected to the second slide groove. The second support member has a third slide groove. The shaft mechanism also includes a second shaft, which is disposed on the first sliding portion, and a portion of the second shaft is slidably disposed in the third slide groove. In this way, the connection structure between the fourth swing arm and the second connecting member and the second support member is simplified, so that the structure of the shaft mechanism is more compact and the shaft mechanism is easy to assemble.

[0022] In some possible implementations of the first aspect, the elastic support member is a metal sheet or a carbon fiber sheet. In this way, the structural strength of these materials is relatively good, which helps to reduce the thickness of the elastic support member while ensuring the supporting strength of the elastic support member, so as to facilitate the thinning of the folding screen device. At the same time, these materials are elastic-plastic materials. When the elastic support member is in a sheet shape, the elastic support member is elastic and can be bent together with the folding screen.

[0023] In some possible implementations of the first aspect, along the extension direction of the rotation axis of the first swing arm and the base, the two ends of the elastic support member are flush with the two ends of the first support member. In this way, the support surface of the elastic support member can be as large as possible, so that when the rotating shaft mechanism is in the unfolded state, the support surface of the rotating shaft mechanism has good flatness, ensuring the supporting performance of the supporting device for the folding screen, and also facilitating the fixing of the elastic support member to the first support member and the second support member.

[0024] In a second aspect, an embodiment of the present application provides a support device, which includes a first housing and a shaft mechanism. The shaft mechanism is the shaft mechanism described in any of the above embodiments, and the first swing arm is connected to the first housing.

[0025] Since the supporting device provided in the embodiment of the present application includes the rotating shaft mechanism as described in the above embodiment, the two can solve the same problem and achieve the same effect, which will not be described in detail here.

[0026] In a third aspect, an embodiment of the present application provides a folding screen device, which includes a folding screen and a supporting device. The folding screen includes a first part and a second part connected to each other. The supporting device is the supporting device described in the above embodiment, the first part is fixed on the first shell, and the second part is supported on the rotating shaft mechanism.

[0027] Since the folding screen device provided in the embodiment of the present application includes the supporting device described in the above embodiment, the two can solve the same problem and achieve the same effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of a folding screen device in an unfolded state provided by some embodiments of the present application;

[0029] Figure 2 for Figure 1 A schematic diagram of a partial exploded structure of a folding screen device shown;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the folding screen device shown in the figure when it is in a folded state;

[0031] Figure 4 for Figure 1 A three-dimensional image of the foldable screen device shown in a folded state;

[0032] Figure 5 A partial structural schematic diagram of a rotating shaft mechanism provided in some embodiments of the present application when in an expanded state;

[0033] Figure 6 for Figure 5 A partial structural schematic diagram of the rotating shaft mechanism shown;

[0034] Figure 7 for Figure 5 A schematic diagram of the structure when the rotating shaft mechanism is in a folded state;

[0035] Figure 8 for Figure 5 A schematic diagram of an assembly structure of the first support member, the second support member and the elastic support member of the rotating shaft mechanism;

[0036] Fig. 9 for Figure 8 The assembly diagram of the rotating shaft mechanism and the folding screen is shown;

[0037] Fig.10 for Figure 5 A schematic diagram of another assembly structure of the first support member, the second support member and the elastic support member of the rotating shaft mechanism;

[0038] Fig.11 for Fig.10 The assembly diagram of the rotating shaft mechanism and the folding screen is shown;

[0039] Fig.12 A three-dimensional diagram of a rotating shaft mechanism in an unfolded state provided in some other embodiments of the present application;

[0040] Fig.13 for Fig.12 Schematic diagram of the exploded structure of the rotating shaft mechanism shown;

[0041] Fig.14 for Fig.12 A partial structural schematic diagram of the rotating shaft mechanism shown;

[0042] Fig.15 for Fig.14 The cross-sectional structure diagram at the AA line;

[0043] Fig.16 for Fig.14 A three-dimensional diagram of the rotating shaft mechanism when it is in a folded state;

[0044] Fig.17 for Fig.14 A schematic diagram of the assembly of a partial structure of the rotating shaft mechanism and the first support member and the second support member;

[0045] Fig.18 for Fig.17 A three-dimensional view of the first support member of the rotating shaft mechanism;

[0046] Fig.19 for Fig.17 A three-dimensional diagram of the rotating shaft mechanism when it is in a folded state;

[0047] Fig. 20 for Fig.17 A three-dimensional view of the second support member of the rotating shaft mechanism;

[0048] Fig.21 for Fig.19 A three-dimensional view of the rotating shaft mechanism shown when viewed from another perspective;

[0049] Fig. 22 for Fig.12 A schematic diagram of the structure when the rotating shaft mechanism is in a folded state;

[0050] Fig.23 for Fig. 22 The assembly diagram of the rotating shaft mechanism and the folding screen is shown;

[0051] Fig.24 A three-dimensional diagram of a partial structure of a rotating shaft mechanism provided in some other embodiments of the present application;

[0052] Fig.25 for Fig.24 A schematic diagram of the assembly of a partial structure of the rotating shaft mechanism and the first support member and the second support member;

[0053] Fig.26 for Fig.25 A schematic diagram showing a partial structure of the rotating shaft mechanism and an assembly structure of the elastic support member in a folded state;

[0054] Fig. 27 for Fig.26 Schematic diagram of the assembly of the hinge mechanism and the folding screen.

[0055] Reference numerals:

[0056] 100-Folding screen devices;

[0057] 10-folding screen; 11-first part; 12-second part; 121-first transition section; 122-second transition section; 123-arc section; 13-third part;

[0058] 20-support device; 21-first shell; 22-second shell; 23-rotating shaft mechanism; 231-base; 2311-first arc groove; 232-first swing arm; 232a-first part; 232b-second part; 2321-first shaft hole; 2322-sixth mounting hole; 233-second swing arm; 2331-first arc protrusion; 2332-first mounting hole; 234-third swing arm; 2341-third mounting hole; 235-fourth swing arm; 2351-second shaft hole; 2352-first sliding part; 236-first connecting member; 2361-second mounting hole; 2362-fourth slide groove; 237-second connecting member; 2371-fourth mounting hole; 2372-second slide groove; 2373-second Arc-shaped protrusion; 2374-avoidance groove; 238-first support member; 2381-first extension portion; 2381a-fifth mounting hole; 2382-first protrusion; 2382a-first slide groove; 239-elastic support member; 2391-first support portion; 2392-second support portion; 240-second support member; 2401-second protrusion; 2401a-second arc-shaped groove; 2402-third protrusion; 2402a-third slide groove; 241-third rotating shaft; 242-fourth rotating shaft; 243-first rotating shaft; 244-fifth rotating shaft; 245-sixth rotating shaft; 246-second rotating shaft; 247-synchronizing mechanism; 2471-first gear; 2472-second gear; 2473-transmission gear. DETAILED DESCRIPTION

[0059] In the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0060] In the embodiments of the present application, it should be understood that the directional terms mentioned, such as "up", "down", "left", "right", "inside", "outside", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0061] In the embodiments of the present application, the terms "first", "second", "third", "fourth", "fifth", and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", and "sixth" may explicitly or implicitly include one or more of the features.

[0062] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0063] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0064] In the embodiments of the present application, it should be noted that the descriptions "vertical" and "parallel" respectively represent approximately vertical and approximately parallel within a certain error range, and the error range may be a range in which the deviation angle is less than or equal to 5°, 8° or 10° relative to absolute vertical and absolute parallel, respectively, and no specific limitation is made here.

[0065] The present application provides a folding screen device, which can be a type of electronic device with a folding screen. The folding screen device includes but is not limited to mobile phones, tablet personal computers, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices, vehicle-mounted devices, wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and other mobile terminals or fixed terminals. The form of the folding screen device is not specifically limited in the embodiments of the present application.

[0066] See also Figure 1 and Figure 2 , Figure 1A three-dimensional diagram of a folding screen device 100 in an unfolded state provided in some embodiments of the present application, Figure 2 for Figure 1 A schematic diagram of a partial decomposition structure of the folding screen device 100 is shown. This embodiment and the following embodiments are exemplified by taking the folding screen device 100 as a handheld device with a wireless communication function, which can be, for example, a mobile phone. The folding screen device 100 is approximately in the shape of a rectangular flat plate in the unfolded state. In order to facilitate the description of the embodiments below, an XYZ coordinate system is established for the folding screen device 100 in the unfolded state, and the length direction of the folding screen device 100 is defined as the X-axis direction, the width direction of the folding screen device 100 is defined as the Y-axis direction, and the thickness direction of the folding screen device 100 is defined as the Z-axis direction. It can be understood that the coordinate system setting of the folding screen device 100 can be flexibly set according to actual needs, and no specific limitation is made here. In some other embodiments, the shape of the folding screen device 100 can also be a square flat plate, a circular flat plate, an elliptical flat plate, and the like.

[0067] The folding screen device 100 includes a folding screen 10 and a supporting device 20 .

[0068] The foldable screen 10 is used to display information such as images and videos. The foldable screen 10 can be an organic light-emitting diode (OLED) screen, a micro organic light-emitting diode (micro organic light-emitting diode) screen, a quantum dot light emitting diode (QLED) screen, a liquid crystal display (LCD), and the like.

[0069] The folding screen 10 has a display area for displaying image information, and the display area of ​​the folding screen 10 is exposed to present images, videos and other information to the user. The folding screen 10 includes a first part 11, a second part 12 and a third part 13 connected in sequence, that is, the second part 12 is connected between the first part 11 and the third part 13. Figure 1 and Figure 2 In the illustrated embodiment, the folding screen 10 is in an unfolded state, and the first part 11, the second part 12, and the third part 13 are arranged in sequence along the X-axis direction, so that the folding screen device 100 is folded in the horizontal direction. In some other embodiments, when the folding screen 10 is in an unfolded state, the first part 11, the second part 12, and the third part 13 can also be arranged in sequence along the Y-axis direction. In this way, the folding screen device 100 is folded in the longitudinal direction. When the folding screen 10 is in an unfolded state, a large screen display can be achieved to provide users with richer information and bring users a better user experience.

[0070] At least the second portion 12 of the folding screen 10 is a flexible screen structure. In this way, the second portion 12 can be bent and deformed after being subjected to an external force, so that the folding screen 10 is Figure 1 The first part 11 and the third part 13 of the folding screen 10 can be a flexible screen structure, a hard screen structure, or a partially flexible screen structure and a partially hard screen structure, which is not specifically limited here.

[0071] See also Figure 3 , Figure 3 for Figure 1 The schematic diagram of the structure of the folding screen device 100 when it is in a folded state, the folding screen 10 in the folding screen device 100 is also in a folded state. Specifically, when the folding screen 10 is in a folded state, the first part 11 and the third part 13 of the folding screen 10 are approximately parallel and opposite. It should be noted that the angle between the first part 11 and the third part 13 is within 30°, and the first part 11 and the third part 13 can be considered to be approximately parallel. The first part 11 and the third part 13 are opposite to each other means that the display surface of the first part 11 faces the display surface of the third part 13.

[0072] When the foldable screen 10 is in the folded state, please continue to refer to Figure 3 , the second part 12 is folded into a water drop shape, in which the second part 12 includes an arc segment 123, a first transition segment 121 and a second transition segment 122. The first transition segment 121 is connected between the arc segment 123 and the first part 11. The second transition segment 122 is connected between the arc segment 123 and the third part 13. The distance between one end of the first transition segment 121 connected to the first part 11 and one end of the second transition segment 122 connected to the third part 13 is the first distance, and the distance between one end of the first transition segment 121 connected to the arc segment 123 and one end of the second transition segment 122 connected to the arc segment 123 is the second distance, and the second distance is greater than the first distance. It can be understood that when the folding screen device is in a folded state, the second part 12 of the folding screen 10 can also be folded into other shapes according to actual needs, and the present application does not limit this.

[0073] When the folding screen device 100 is in the folded state, refer to Figure 3 and Figure 4 , Figure 4 for Figure 1 The folding screen device 100 is shown in a three-dimensional view when it is in a folded state. The support device 20 is protected outside the folding screen 10, and the folding screen 10 is invisible to the user, which can prevent the folding screen 10 from being scratched by hard objects. The folding screen device 100 is an inward folding folding screen device, and the size of the folding screen device 100 is reduced, which is convenient to carry.

[0074] The support device 20 is used to carry the folding screen 10. The support device 20 includes a first shell 21, a second shell 22 and a hinge mechanism 23. The first shell 21 carries the first part 11, and the second shell 22 carries the third part 13. The hinge mechanism 23 is connected between the first shell 21 and the second shell 22, and carries the second part 12, that is, the second part 12 of the folding screen 10 is supported on the hinge mechanism 23. The hinge mechanism 23 is used to realize the rotation between the second shell 22 and the first shell 21, so as to support the folding of the folding screen 10 between the unfolded state and the folded state.

[0075] In some embodiments, the first shell 21 may include a middle frame and a back cover connected together, and the first part 11 of the folding screen 10 is carried on the middle frame of the first shell 21. Specifically, the first part 11 can be adhesively fixed to the middle frame of the first shell 21, and the back cover is located on the side of the middle frame away from the first part 11, and the back cover can be replaced with a display screen (such as an LCD display screen). A accommodating cavity is formed between the middle frame and the back cover, which is used to accommodate electronic components such as a motherboard, a camera module, and a battery. On this basis, the first shell 21 can be connected to the hinge mechanism 23 with the help of the middle frame, and can also be connected to the hinge mechanism 23 with the help of the back cover. The following embodiments are described as an example of the first shell 21 being connected to the hinge mechanism 23 with the help of the middle frame.

[0076] Similarly, the second shell 22 may also include a middle frame and a back cover connected together, and the third part 13 of the folding screen 10 is carried on the middle frame of the second shell 22. Specifically, the third part 13 can be adhesively fixed to the middle frame of the second shell 22, and the back cover is located on the side of the middle frame away from the third part 13, and the back cover can also be replaced by a display screen (such as an LCD display screen). A accommodating cavity is formed between the middle frame and the back cover, and the accommodating cavity is used to accommodate electronic components such as sub-boards, speaker modules, arrays, batteries, etc. On this basis, the second shell 22 can be connected to the hinge mechanism 23 with the help of the middle frame, and can also be connected to the hinge mechanism 23 with the help of the back cover. The following embodiments are explained by taking the connection of the second shell 22 with the hinge mechanism 23 with the help of the middle frame as an example.

[0077] Since the rotation radius of the folding screen 10 is smaller than the rotation radius of the hinge mechanism 23 when the folding screen device 100 is folded from the unfolded state to the folded state, the hinge mechanism 23 needs to be able to extend and shorten to accommodate the second part 12 of the folding screen 10 when the folding screen device 100 is in the folded state, and to support the second part 12 of the folding screen 10 when the folding screen device 100 is in the unfolded state. Based on this, please refer to Figure 5 and Figure 6 , Figure 5 This is a partial structural schematic diagram of the rotating shaft mechanism 23 provided in some embodiments of the present application when it is in an expanded state. Figure 6 for Figure 5The schematic diagram of the partial structure of the rotating shaft mechanism 23 is shown. The rotating shaft mechanism 23 includes a base 231, a first swing arm 232, a second swing arm 233, a third swing arm 234, a fourth swing arm 235, a first connecting member 236, a second connecting member 237, a first supporting member 238 and a second supporting member 240.

[0078] The base 231 provides a position reference in the rotating shaft mechanism 23. The base 231 can have various shapes, and the base 231 can be a whole structure or assembled from multiple parts. The material of the base 231 includes but is not limited to metal and plastic.

[0079] One end of the second swing arm 233 is rotatably connected to the base 231, and the other end is rotatably connected to the first connecting member 236; one end of the first swing arm 232 is rotatably connected to the base 231, and the other end is slidably connected to the first connecting member 236; the first support member 238 is rotatably connected to the first connecting member 236 and slidably connected to the first swing arm 232. One end of the third swing arm 234 is rotatably connected to the base 231, and the other end is rotatably connected to the second connecting member 237; one end of the fourth swing arm 235 is rotatably connected to the base 231, and the other end is slidably connected to the second connecting member 237; the second support member 240 is rotatably connected to the second connecting member 237 and slidably connected to the fourth swing arm 235. The first connecting member 236 is used to be fixedly connected to the middle frame of the first shell 21 by means of screws, clamping, etc., and the second connecting member 237 is used to be fixedly connected to the middle frame of the second shell 22 by means of screws, clamping, etc.

[0080] See also Figure 7 , Figure 7 for Figure 5 The structure diagram of the rotating shaft mechanism 23 is shown in the folded state. When the first connecting member 236 and the second connecting member 237 rotate toward each other, the first connecting member 236 drives the first swing arm 232 to rotate synchronously, and the first connecting member 236 and the second swing arm 233 stretch relative to the first swing arm 232, and the second connecting member 237 drives the fourth swing arm 235 to rotate synchronously, and the second connecting member 237 and the third swing arm 234 stretch relative to the fourth swing arm 235, so as to increase the length of the rotating shaft mechanism 23. The first swing arm 232 slidably connected to the first support member 238 drives the first support member 238 to rotate relative to the first connecting member 236, and the fourth swing arm 235 slidably connected to the second support member 240 drives the second support member 240 to rotate relative to the second connecting member 237. The direction in which the first support member 238 rotates relative to the first connecting member 236 is the same as the direction in which the first connecting member 236 rotates relative to the base 231, and the direction in which the second support member 240 rotates relative to the second connecting member 237 is the same as the direction in which the second connecting member 237 rotates relative to the base 231, so that the first support member 238, the second support member 240 and the base 231 enclose a space to accommodate the second part 12 of the folding screen 10.

[0081] Please return to Figure 5 When the first connecting member 236 and the second connecting member 237 rotate away from each other, the first connecting member 236 drives the first swing arm 232 to rotate synchronously, and the first connecting member 236 and the second swing arm 233 shrink relative to the first swing arm 232, and the second connecting member 237 drives the fourth swing arm 235 to rotate synchronously, and the second connecting member 237 and the third swing arm 234 shrink relative to the fourth swing arm 235 to reduce the length of the rotating shaft mechanism 23. The first swing arm 232 slidably connected to the first support member 238 drives the first support member 238 to rotate relative to the first connecting member 236, and the fourth swing arm 235 slidably connected to the second support member 240 drives the second support member 240 to rotate relative to the second connecting member 237. The direction in which the first support member 238 rotates relative to the first connecting member 236 is the same as the direction in which the first connecting member 236 rotates relative to the base 231, and the direction in which the second support member 240 rotates relative to the second connecting member 237 is the same as the direction in which the second connecting member 237 rotates relative to the base 231, so that the first support member 238 and the second support member 240 are flattened into a support surface.

[0082] See also Figure 8 and Fig. 9 , Figure 8 for Figure 5 The schematic diagram of an assembly structure of the first support member 238, the second support member 240 and the elastic support member 239 of the rotating shaft mechanism 23 is shown. Fig. 9 for Figure 8 The assembly diagram of the hinge mechanism 23 and the folding screen 10 is shown. The hinge mechanism 23 also includes an elastic support member 239, which is stacked on the front side of the first support member 238, the base 231 and the second support member 240. It should be noted that the front side of the first support member 238, the base 231 and the second support member 240 refers to the side of the first support member 238, the base 231 and the second support member 240 facing the folding screen 10. The "front side" used in the following embodiments to describe other components in the hinge mechanism 23 refers to the side of the described component facing the folding screen 10, and the "back side" used in other components in the hinge mechanism 23 refers to the side of the described component away from the folding screen 10, which will not be repeated in the following embodiments.

[0083] Specifically, the elastic support member 239 can be a bendable metal sheet, and the two sides of one end of the elastic support member 239 are fixed to the first support member 238 and the first transition section 121 of the second part 12 of the folding screen 10 by bonding, and the two sides of the other end of the elastic support member 239 are fixed to the second support member 240 and the second transition section 122 of the second part 12 of the folding screen 10 by gluing.

[0084] When the folding screen device 100 is bent, the length of the hinge mechanism 23 will increase, and the elastic support member 239 cannot be elastically stretched and deformed. Therefore, in order to prevent the folding screen device 100 from pulling the elastic support member 239 when it is bent, causing the elastic support member 239 to separate from the parts bonded thereto, the elastic support member 239 is spliced ​​from two parts, one part is fixed on the first support member 238, and the other part is fixed on the second support member 240. As a result, when the folding screen device 100 moves between the unfolded state and the folded state, the free suspended ends of the two parts of the elastic support member 239 facing each other will scratch the base 231, causing damage to the base 231 and generating abnormal noise, and there is a gap between the two parts of the elastic support member 239, which makes the reliability of the hinge mechanism 23 and the supporting performance of the folding screen 10 poor, reduces the impact resistance of the folding screen 10, and makes the folding screen 10 prone to creases and impact broken bright spots, thereby reducing the reliability of the whole machine and affecting the user experience.

[0085] See also Fig.10 and Fig.11 , Fig.10 for Figure 5 Another schematic diagram of the assembly structure of the first support member 238, the second support member 240 and the elastic support member 239 of the rotating shaft mechanism 23 is shown. Fig.11 for Fig.10 The schematic diagram of the assembly of the rotating shaft mechanism 23 and the folding screen 10 is shown. Fig.10 and Fig.11 The embodiment shown is Figure 8 and Fig. 9 The difference of the illustrated embodiment is that the elastic support member 239 is a bendable one-piece metal sheet, and the two sides of one end of the elastic support member 239 are respectively fixed to the second support member 240 and the second transition section 122 of the second part 12 of the folding screen 10 by bonding, and the other end is a free end, that is, the other end is not connected to other components. In this way, the elastic support member 239 can provide a continuous and complete support surface for the second part 12 of the folding screen 10, improve the support performance of the elastic support member 239 on the folding screen 10, and further improve the impact resistance of the folding screen 10. However, during the folding and unfolding process of the folding screen device 100, the free end of the elastic support member 239 will also scratch the folding screen 10, causing the folding screen 10 to be damaged and fail, and it is also easy to produce abnormal noise, which also affects the user experience.

[0086] To solve the above problems, see Fig.12 and Fig.13 , Fig.12 A three-dimensional diagram of the rotating shaft mechanism 23 in the unfolded state provided in some other embodiments of the present application, Fig.13 for Fig.12The exploded structural diagram of the rotating shaft mechanism 23 is shown. The rotating shaft mechanism 23 includes a base 231, a first swing arm 232, a second swing arm 233, a third swing arm 234, a fourth swing arm 235, a first connecting member 236, a second connecting member 237, a first supporting member 238, an elastic supporting member 239 and a second supporting member 240.

[0087] Fig.12 and Fig.13 In the illustrated embodiment, the first swing arm 232 and the fourth swing arm 235 may be referred to as auxiliary swing arms, and the second swing arm 233 and the third swing arm 234 may be referred to as main swing arms. The first swing arm 232 and the fourth swing arm 235 may be disposed on opposite sides of the base 231, and the second swing arm 233 and the third swing arm 234 may be disposed on opposite sides of the base 231, that is, the first swing arm 232 and the fourth swing arm 235 may be disposed on opposite sides of the base 231 along the X-axis direction, and the second swing arm 233 and the third swing arm 234 may be disposed on opposite sides of the base 231 along the X-axis direction. Among them, the first swing arm 232 and the second swing arm 233 are disposed on the same side of the base 231, that is, the first swing arm 232 and the second swing arm 233 may be arranged along the Y-axis direction, and the third swing arm 234 and the fourth swing arm 235 may be arranged along the Y-axis direction. In some other embodiments, the first swing arm 232 and the fourth swing arm 235 may also be referred to as main swing arms, and the second swing arm 233 and the third swing arm 234 may also be referred to as auxiliary swing arms. In some other embodiments, the first swing arm 232 and the third swing arm 234 may also be referred to as auxiliary swing arms, and the second swing arm 233 and the fourth swing arm 235 may also be referred to as main swing arms.

[0088] See also Fig.13 and Fig.14 , Fig.14 for Fig.12 The partial structural diagram of the rotating shaft mechanism 23 is shown in FIG. Fig.14 The elastic support member 239, the first support member 238 and the second support member 240 are hidden in the structure. The first swing arm 232 is rotatably connected to the base 231, and the rotation axis of the first swing arm 232 and the base 231 is the first axis, and the extension direction of the first axis is parallel to the Y axis. Specifically, the end of the first swing arm 232 close to the base 231 has a first shaft hole 2321, and the shaft mechanism 23 also includes a third shaft 241, which is arranged on the base 231. The third shaft 241 is passed through the first shaft hole 2321 to realize the rotatable connection between the first swing arm 232 and the base 231, and the axis of the third shaft 241 is the first axis. In some examples, the first swing arm 232 can be relatively fixed to the third shaft 241, and the third shaft 241 is rotatably connected to the base 231. In some other examples, the first swing arm 232 may also be rotatably connected to the third rotating shaft 241 , and the third rotating shaft 241 is fixed on the base 231 .

[0089] In some other embodiments, one of the first swing arm 232 and the base 231 may have an arc-shaped groove, and the other may be provided with an arc-shaped protrusion, which is adapted to the arc-shaped groove. The arc-shaped protrusion can be slidably arranged in the arc-shaped groove to realize a rotatable connection between the first swing arm 232 and the base 231, and the axis of the arc-shaped groove is the first axis.

[0090] See also Figure 13-Figure 15 , Fig.15 for Fig.14 The cross-sectional structure diagram at the AA line in the figure. It should be noted that, in the present embodiment, "at the AA line" refers to the plane where the AA line and the arrows at both ends of the AA line are located. The description of similar figures in the following text should be understood in the same way and will not be repeated in the following text. The second swing arm 233 is rotatably connected to the base 231. The rotation axis of the second swing arm 233 and the base 231 is the second axis. The second axis is parallel to the first axis, that is, the extension direction of the second axis is parallel to the Y axis, and the second axis is not colinear with the first axis. Specifically, a first arc-shaped protrusion 2331 is provided at one end of the second swing arm 233 close to the base 231. The base 231 has a first arc-shaped groove 2311 adapted to the first arc-shaped protrusion 2331. The first arc-shaped protrusion 2331 can be slidably arranged in the first arc-shaped groove 2311 to realize the rotatable connection between the second swing arm 233 and the base 231. The axis of the first arc-shaped groove 2311 is the second axis. There are two first arc-shaped protrusions 2331, which are respectively disposed on two surfaces of the second swing arm 233 arranged along the extension direction of the second axis. In some other embodiments, there may be one first arc-shaped protrusion 2331, which is not limited in the present application.

[0091] In some other embodiments, the second swing arm 233 is provided with a first arc groove 2311, and the base 231 is provided with a first arc protrusion 2331, and the first arc protrusion 2331 can be slidably disposed in the first arc groove 2311. In some other embodiments, the second swing arm 233 and the base 231 can also be rotatably connected by a rotating shaft hinge.

[0092] Please continue reading Figure 13-Figure 15 The third swing arm 234 is rotatably connected to the base 231. The rotation axis of the third swing arm 234 and the base 231 is the third axis. The third axis is parallel to the first axis, that is, the extension direction of the third axis is parallel to the Y axis. The structure of the third swing arm 234 and the connection structure with the base 231 can be the same as that of the second swing arm 233, and will not be repeated here.

[0093] Please continue reading Fig.13 and Fig.14, the fourth swing arm 235 is rotatably connected to the base 231, the rotation axis of the fourth swing arm 235 and the base 231 is the fourth axis, the fourth axis is parallel to the third axis, that is, the extension direction of the fourth axis is parallel to the Y axis, and the fourth axis is not colinear with the third axis. Specifically, the end of the fourth swing arm 235 close to the base 231 has a second shaft hole 2351, and the shaft mechanism 23 also includes a fourth shaft 242, the fourth shaft 242 is arranged on the base 231, the fourth shaft 242 is penetrated in the second shaft hole 2351 to realize the rotatable connection between the fourth swing arm 235 and the base 231, and the axis of the fourth shaft 242 is the fourth axis. In some examples, the fourth swing arm 235 can be relatively fixed with the fourth shaft 242, and the fourth shaft 242 is rotatably connected to the base 231. In other examples, the fourth swing arm 235 can also be rotatably connected with the fourth shaft 242, and the fourth shaft 242 is fixed to the base 231.

[0094] In some other embodiments, one of the fourth swing arm 235 and the base 231 may have an arc-shaped groove, and the other may be provided with an arc-shaped protrusion, which is adapted to the arc-shaped groove. The arc-shaped protrusion can be slidably arranged in the arc-shaped groove to realize a rotatable connection between the fourth swing arm 235 and the base 231, and the axis of the arc-shaped groove is the fourth axis.

[0095] The first connecting member 236 and the second connecting member 237 are used to be fixedly connected to the first shell 21 and the second shell 22, respectively, that is, the first connecting member 236 is relatively fixed to the first part 11 of the folding screen 10, and the second connecting member 237 is relatively fixed to the third part 13 of the folding screen 10. Figure 13-Figure 15 , the first connecting member 236 is rotatably connected to the second swing arm 233, and is slidably connected to the first swing arm 232. Specifically, the end of the second swing arm 233 away from the base 231 has a first mounting hole 2332, and the end of the first connecting member 236 close to the base 231 has a second mounting hole 2361. The rotating shaft mechanism 23 also includes a first rotating shaft 243, which is inserted into the first mounting hole 2332 and the second mounting hole 2361 to realize the rotatable connection between the first connecting member 236 and the second swing arm 233, and the axis of the first rotating shaft 243 is parallel to the first axis. The first rotating shaft 243 can be fixed to the second swing arm 233, and can also rotate relative to the second swing arm 233, that is, the first rotating shaft 243 is set on the second swing arm 233.

[0096] In some other embodiments, the second swing arm 233 may not include the second mounting hole 2361, and the first rotating shaft 243 is arranged on the end face of the second swing arm 233 arranged along the extension direction of the first axis. In some other embodiments, the first mounting hole 2332 may also be opened in the second swing arm 233, the first rotating shaft 243 is arranged on the first connecting member 236, and the first rotating shaft 243 is penetrated in the first mounting hole 2332. In this way, the first connecting member 236 and the second swing arm 233 are rotatably connected through the rotating shaft, and the connection is reliable and easy to assemble. On this basis, the surface of the first connecting member 236 facing the base 231 has a fourth slide groove 2362, and the fourth slide groove 2362 extends in a direction perpendicular to the first axis, and the end of the first swing arm 232 away from the base 231 can be slidably arranged in the fourth slide groove 2362. In some other embodiments, the first connecting member 236 may also be rotatably connected to the first swing arm 232 and slidably connected to the second swing arm 233.

[0097] Please continue reading Figure 13-Figure 15 , the second connecting member 237 is rotatably connected to the third swing arm 234, and is slidably connected to the fourth swing arm 235. Specifically, the end of the third swing arm 234 away from the base 231 has a third mounting hole 2341, and the end of the second connecting member 237 close to the base 231 has a fourth mounting hole 2371. The rotating shaft mechanism 23 also includes a fifth rotating shaft 244, which is penetrated through the third mounting hole 2341 and the fourth mounting hole 2371 to realize the rotatable connection between the second connecting member 237 and the third swing arm 234, and the axis of the fifth rotating shaft 244 is parallel to the third axis. In this way, the second connecting member 237 and the third swing arm 234 are rotatably connected through the rotating shaft, and the connection is reliable and easy to assemble. On this basis, the surface of the second connecting member 237 facing the base 231 has a second slide groove 2372, and the second slide groove 2372 extends in a direction perpendicular to the third axis. The end of the fourth swing arm 235 away from the base 231 forms a first sliding portion 2352, and the first sliding portion 2352 can be slidably disposed in the second slide groove 2372.

[0098] Based on the above, please refer to Fig.14 and Fig.16 , Fig.16 for Fig.14 The three-dimensional view of the rotating shaft mechanism 23 in the folded state is shown. The first swing arm 232 and the third swing arm 234 can rotate relative to the base 231 to enable the rotating shaft mechanism 23 to move between the unfolded state and the folded state.

[0099] When the first swing arm 232 and the third swing arm 234 rotate relative to the base 231 to move the hinge mechanism 23 from the unfolded state to the folded state, the first connecting member 236 rotates synchronously with the first swing arm 232, and moves relative to the first swing arm 232 in a direction perpendicular to the first axis in a direction away from the base 231, and the distance between the end of the first connecting member 236 away from the base 231 and the second axis increases, that is, the end of the first connecting member 236 away from the base 231 moves in a direction perpendicular to the first axis in a direction away from the base 231, and the second connecting member 237 rotates synchronously with the fourth swing arm 235, and moves relative to the fourth swing arm 235 in a direction perpendicular to the third axis in a direction away from the base 231, and the distance between the end of the second connecting member 237 away from the base 231 and the third axis increases, that is, the end of the second connecting member 237 away from the base 231 moves in a direction perpendicular to the third axis in a direction away from the base 231, so as to increase the length of the hinge mechanism 23 to adapt to the change in the shape of the second part 12 of the folding screen 10.

[0100] When the first swing arm 232 and the third swing arm 234 rotate relative to the base 231 to move the hinge mechanism 23 from a folded state to an unfolded state, the first connecting member 236 rotates synchronously with the first swing arm 232, and moves relative to the first swing arm 232 in a direction perpendicular to the first axis toward a direction close to the base 231, and the distance between the end of the first connecting member 236 away from the base 231 and the second axis is reduced, that is, the end of the first connecting member 236 away from the base 231 moves in a direction perpendicular to the first axis toward a direction close to the base 231, and the second connecting member 237 rotates synchronously with the fourth swing arm 235, and moves relative to the fourth swing arm 235 in a direction perpendicular to the third axis toward a direction close to the base 231, and the distance between the end of the second connecting member 237 away from the base 231 and the third axis is reduced, that is, the end of the second connecting member 237 away from the base 231 moves in a direction perpendicular to the third axis toward a direction close to the base 231, so as to reduce the length of the hinge mechanism 23 and adapt to the change in the shape of the second part 12 of the folding screen 10. In this way, the hinge mechanism 23 can provide accommodation space and reliable support for the second part 12 of the folding screen 10.

[0101] In the above embodiment, the first swing arm 232 and the second swing arm 233 are connected to the first housing 21 through the first connecting member 236, and the third swing arm 234 and the fourth swing arm 235 are connected to the second housing 22 through the second connecting member 237. In some other embodiments, the rotating shaft mechanism 23 may not include the first connecting member 236 and the second connecting member 237, and the middle frame of the first housing 21 may be directly connected to one of the first swing arm 232 and the second swing arm 233 in rotation and connected to the other in sliding. The middle frame of the second housing 22 may be directly connected to one of the third swing arm 234 and the fourth swing arm 235 in rotation and connected to the other in sliding.

[0102] Based on the above, please refer to Fig.17 and Fig.18 , Fig.17 for Fig.14 The schematic diagram of the assembly of the partial structure of the rotating shaft mechanism 23 and the first support member 238 and the second support member 240 is shown. Fig.18 for Fig.17 The three-dimensional diagram of the first support member 238 of the rotating shaft mechanism 23 is shown. The first support member 238 is approximately in the shape of a rectangular flat plate, and the long side of the first support member 238 extends in the direction parallel to the Y axis. The first support member 238 is located at the front side of the first swing arm 232; the end of the first support member 238 away from the base 231 is rotatably connected to the first swing arm 232. Specifically, the end of the first support member 238 away from the base 231 is provided with a first extension portion 2381, and the first extension portion 2381 has a fifth mounting hole 2381a, and the end of the first swing arm 232 away from the base 231 has a sixth mounting hole 2322, and the rotating shaft mechanism also includes a sixth rotating shaft 245, and the sixth rotating shaft 245 is penetrated through the fifth mounting hole 2381a and the sixth mounting hole 2322 to realize the rotatable connection between the first support member 238 and the first swing arm 232.

[0103] For some examples, see Fig.19 , Fig.19 for Fig.17The three-dimensional diagram of the rotating shaft mechanism 23 when it is in a folded state is shown. The end of the second swing arm 233 away from the base 231 may include a first part 232a and a second part 232b spaced apart from each other along the extension direction of the first axis, the first part 232a is slidably disposed in the fourth slide groove 2362 of the first connecting member 236, and the sixth mounting hole 2322 is located on the second part 232b. In this way, it can be achieved that the end of the first swing arm 232 away from the base 231 is not only slidably connected with the first connecting member 236 so that the inclination angle of the first connecting member 236 relative to the front side surface of the base 231 is the same as the inclination angle of the first part 232a relative to the front side surface of the base 231, but also rotatably connected with the first support member 238 to control the rotation angle of the first support member 238 as a whole relative to the base 231, and the structure is simple and easy to implement. In some other embodiments, an arc-shaped protrusion may be provided on one of the first extension portion 2381 and the first swing arm 232, and an arc-shaped groove matching the arc-shaped protrusion may be opened on the other, and the arc-shaped protrusion can be slidably set in the arc-shaped groove to realize the rotatable connection between the first support member 238 and the first swing arm 232.

[0104] On this basis, see Figure 17-Figure 19 , the first support member 238 is also slidably connected to the second swing arm 233 in a direction perpendicular to the first axis. In this way, the second swing arm 233 can control the inclination angle of the first support member 238 relative to the front surface of the base 231, so as to avoid the second part 12 of the folding screen 10 when the hinge mechanism 23 is in the folded state, and support the second part 12 of the folding screen 10 when the hinge mechanism 23 is in the unfolded state. Specifically, the back side of the first support member 238 has a first protrusion 2382, and the first protrusion 2382 has a first slide groove 2382a, and a part of the first shaft 243 is slidably disposed in the first slide groove 2382a.

[0105] In this way, the first rotating shaft 243 can be used to realize the rotatable connection between the first connecting member 236 and the second swing arm 233, and can also be used to realize the slidable connection between the first supporting member 238 and the second swing arm 233, which simplifies the connection structure, makes the structure of the rotating shaft mechanism 23 more compact, and facilitates the assembly of the rotating shaft mechanism 23. Figure 17-Figure 19In the illustrated embodiment, the number of the first slide grooves 2382a is two, and the two ends of the first rotating shaft 243 are respectively slidably disposed in the two first slide grooves 2382a. In some other embodiments, the number of the first slide groove 2382a may also be one, and one end of the first rotating shaft 243 is slidably disposed in the first slide groove 2382a, which is not limited in the present application. In some other embodiments, the first slide groove 2382a may also be disposed on the second swing arm 233, and a slide bar is disposed on the first protrusion 2382, and the slide bar is slidably disposed in the first slide groove 2382a, so as to realize the slidable connection between the first support member 238 and the second swing arm 233.

[0106] It should be noted that the aforementioned first support member 238 is located at the front side of the first swing arm 232 , which means that the portion of the first support member 238 other than the first extension portion 2381 and the first protrusion 2382 is located at the front side of the first swing arm 232 .

[0107] See also Fig. 20 and Fig.21 , Fig. 20 for Fig.17 The three-dimensional view of the second support member 240 of the rotating shaft mechanism 23 is shown. Fig.21 for Fig.19 The third embodiment is a three-dimensional diagram of the rotating shaft mechanism 23 when viewed from another perspective. The second support member 240 is approximately in the shape of a rectangular flat plate, and the long side of the second support member 240 extends in parallel with the Y axis. The second support member 240 is located in front of the third swing arm 234, and the second support member 240 is also located in front of the second connecting member 237. One end of the second support member 240 away from the base 231 is rotatably connected to the second connecting member 237, that is, the end of the second support member 240 away from the base 231 is indirectly rotatably connected to the third swing arm 234 through the second connecting member 237. Specifically, a second protrusion 2401 is provided on the back surface of the end of the second support member 240 away from the base 231, and a second arc-shaped groove 2401a is provided on the second protrusion 2401. A second arc-shaped protrusion 2373 is provided on the end of the second connecting member 237 away from the base 231, and the second arc-shaped protrusion 2373 is adapted to the second arc-shaped groove 2401a. The second arc-shaped protrusion 2373 can be slidably arranged in the second arc-shaped groove 2401a to realize the rotatable connection between the second support member 240 and the second connecting member 237.

[0108] Fig. 20 and Fig.21In the embodiment shown, the number of the second arc-shaped protrusions 2373 is two, and the two second arc-shaped protrusions 2373 are respectively arranged at the two ends of the second connecting member 237 along the extension direction of the third axis. Correspondingly, the number of the second arc-shaped grooves 2401a is also two, and the two second arc-shaped protrusions 2373 correspond to the two second arc-shaped grooves 2401a one by one. In some other embodiments, the number of the second arc-shaped protrusions 2373 and the second arc-shaped grooves 2401a can also be one. In some other embodiments, the second connecting member 237 can have a second arc-shaped groove 2401a, and the second support member 240 can be provided with a second arc-shaped protrusion 2373, and the second arc-shaped protrusion 2373 can be slidably arranged in the second arc-shaped groove 2401a to realize the rotatable connection between the second connecting member 237 and the second support member 240. In some other embodiments, the second support member 240 and the second connecting member 237 can also be hinged by a rotating shaft to realize the rotation connection.

[0109] On this basis, the second support member 240 is also slidably connected with the fourth swing arm 235 or the third swing arm 234 in a direction perpendicular to the third axis. In this way, the fourth swing arm 235 or the third swing arm 234 can control the inclination angle of the second support member 240 relative to the front surface of the base 231, so as to avoid the second part 12 of the folding screen 10 when the hinge mechanism 23 is in the folded state, and support the second part 12 of the folding screen 10 when the hinge mechanism 23 is in the unfolded state. Fig.16 , Fig. 20 and Fig.21 Specifically, the back surface of the second support member 240 has a third protrusion 2402, and the third protrusion 2402 has a third slide groove 2402a. The shaft mechanism 23 also includes a second shaft 246, which is disposed at the end of the fourth swing arm 235 away from the base 231, and a part of the second shaft 246 is slidably disposed in the third slide groove 2402a. In this way, the connection structure between the fourth swing arm 235, the second connecting member 237 and the second support member 240 is simplified, making the structure of the shaft mechanism 23 more compact and convenient for assembling the shaft mechanism 23.

[0110] Fig.16 , Fig. 20 and Fig.21In the illustrated embodiment, the second connecting member 237 has an avoidance groove 2374 that runs through the front side surface and the back side surface thereof, and a portion of the third protrusion 2402 is located in the avoidance groove 2374. The end of the fourth swing arm 235 away from the base 231 includes first sliding parts 2352 that are arranged at intervals along the extension direction of the fourth axis, and the second rotating shaft 246 is arranged on the surface of the first sliding part 2352 facing the avoidance groove 2374. The number of the second rotating shaft 246 and the third sliding groove 2402a are both two, and the two second rotating shafts 246 are respectively arranged on the surfaces of the two first sliding parts 2352 that are opposite to each other, and the two third sliding grooves 2402a are respectively arranged on the two opposite surfaces of the third protrusion 2402, and the two second rotating shafts 246 are slidably arranged in the third sliding grooves 2402a in a one-to-one correspondence. In some other embodiments, the number of the second rotating shaft 246 can be one, the second rotating shaft 246 is connected between the two first sliding parts 2352, the third sliding groove 2402a passes through the two opposite surfaces of the third protrusion 2402, and the second rotating shaft 246 is inserted into the third sliding groove 2402a.

[0111] In some other embodiments, the third slide groove 2402a may also be provided on the fourth swing arm 235, and the third protrusion 2402 is provided with a second shaft 246, which is slidably provided in the third slide groove 2402a to achieve a slidable connection between the second support member 240 and the fourth swing arm 235. In some other embodiments, one of the third swing arm 234 and the second support member 240 has a slide groove, and the other has a slide bar, which is slidably provided in the slide groove to achieve a slidable connection between the third swing arm 234 and the second support member 240.

[0112] It should be noted that the aforementioned second support member 240 is located at the front side of the third swing arm 234 , which means that the part of the second support member 240 except the second protrusion 2401 and the third protrusion 2402 is located at the front side of the third swing arm 234 .

[0113] Please return to Fig.12 and Fig.13, the elastic support member 239 is approximately in the shape of a rectangular sheet, and the long side of the elastic support member 239 extends in parallel with the Y axis. The elastic support member 239 includes a first support portion 2391 and a second support portion 2392 connected to each other. When the rotating shaft mechanism 23 is in the unfolded state, the first support portion 2391 is stacked on the front side of the first support member 238 and the base 231, and the second support portion 2392 is stacked on the front side of the second support member 240. The first support portion 2391 of the elastic support member 239 is fixed to the first support member 238, and the second support portion 2392 is fixed to the second support member 240. In some examples, the first support portion 2391 of the elastic support member 239 is bonded to the front side surface of the first support member 238, and the second support portion 2392 of the elastic support member 239 is bonded to the front side surface of the second support member 240. In other examples, the first support portion 2391 of the elastic support member 239 can also be fixed to the front side surface of the first support member 238 by means of threaded connection, riveting, welding, etc., and the second support portion 2392 of the elastic support member 239 can also be fixed to the front side surface of the second support member 240 by means of threaded connection, riveting, welding, etc.

[0114] Based on the above, please refer to Fig. 22 , Fig. 22 for Fig.12 The structural schematic diagram of the rotating shaft mechanism 23 shown is in the folded state. When the first swing arm 232 rotates relative to the base 231 to move the rotating shaft mechanism 23 from the unfolded state to the folded state, the second swing arm 233 drives the end of the first support member 238 close to the base 231 to tilt toward the back side of the first swing arm 232 relative to the end of the first support member 238 away from the base 231; when the third swing arm 234 rotates relative to the base 231 to move the rotating shaft mechanism 23 from the unfolded state to the folded state, the fourth swing arm 235 or the third swing arm 234 slidably connected to the second support member 240 drives the end of the second support member 240 close to the base 231 to tilt toward the back side of the third swing arm 234 relative to the end of the second support member 240 away from the base 231; the elastic support member 239 is bent. In this way, the first support member 238, the base 231 and the second support member 240 can form a screen-holding space that is approximately in the shape of a water droplet, and the elastic support member 239 can be bent to form a screen-holding space that is approximately in the shape of a water droplet. The second part 12 of the folding screen 10 can be folded into a water drop shape to reduce the inner folding angle of the second part 12, reduce the probability of creases on the folding screen 10, ensure the display effect of the folding screen 10, and extend the service life of the folding screen 10.

[0115] Please return to Fig.12When the first swing arm 232 and the third swing arm 234 rotate relative to the base 231 to move the rotating shaft mechanism 23 from the folded state to the unfolded state, the second swing arm 233 drives the end of the first support member 238 close to the base 231 to rotate toward the front side of the first swing arm 232 relative to the end of the first support member 238 away from the base 231, and the fourth swing arm 235 or the third swing arm 234 slidingly connected to the second support member 240 drives the end of the second support member 240 close to the base 231 to rotate toward the front side of the third swing arm 234 relative to the end of the second support member 240 away from the base 231, so that the first support member 238 and the second support member 240 are located in the same plane, and the elastic support member 239 is flattened to form a support surface. In this way, the first support member 238 and the second support member 240 can form a reliable support for the elastic support member 239, which is beneficial to improving the flatness of the elastic support member 239, and further enable the elastic support member 239 to form a reliable support for the second part 12 of the folding screen 10, thereby improving the flatness of the folding screen 10.

[0116] Based on the above, please refer to Fig.23 , Fig.23 for Fig. 22 The schematic diagram of the assembly of the rotating shaft mechanism 23 and the folding screen 10 is shown. Since the end of the first support member 238 away from the base 231 is rotatably connected to the first swing arm 232, and the first swing arm 232 is rotatably connected to the base 231, when the first swing arm 232 rotates relative to the base 231 to move the hinge mechanism 23 from the unfolded state to the folded state, the distance between the end of the first support member 238 away from the base 231 and the rotation axis (first axis) of the first swing arm 232 and the base 231 remains unchanged. When the second part 12 of the folding screen 10 is bent and the hinge mechanism 23 is extended, the first support member 238 can slide relative to the folding screen 10 toward the base 231. Therefore, there is no need for the elastic support member 239 to be a split structure. The two ends of the elastic support member 239 can be fixed on the first support member 238 and the second support member 240 respectively, thereby providing a continuous and complete support surface for the second part 12 of the folding screen 10, improving the supporting performance of the support device 20 on the folding screen 10, and further improving the impact resistance of the folding screen 10. In addition, since the two ends of the elastic support member 239 are respectively fixed to the first support member 238 and the second support member 240, the end of the elastic support member 239 can be prevented from scratching the folding screen 10 and generating abnormal noise.

[0117] The material of the elastic support member 239 includes, but is not limited to, metals such as steel and titanium alloy, and composite materials containing fiber materials such as glass fiber, carbon fiber, and aramid fiber. In some embodiments, the elastic support member 239 is a metal sheet or a carbon fiber sheet. Among them, steel is an iron-carbon alloy with a carbon content of between 0.02% and 2.11% by mass. These materials have better structural strength, which is beneficial to reduce the thickness of the elastic support member 239 while ensuring the supporting strength of the elastic support member 239, so as to facilitate the thinning of the folding screen device 100. At the same time, these materials are elastoplastic materials. When the elastic support member 239 is in sheet form, the elastic support member 239 is elastic, and the elastic support member 239 can be bent together with the folding screen 10.

[0118] In some embodiments, the thickness of the elastic support member 239 may be greater than or equal to 0.02 millimeters (mm) and less than or equal to 0.10 mm. Specifically, the thickness of the elastic support member 239 may be 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm or 0.1 mm. In this way, the thickness of the elastic support member 239 is moderate, while ensuring the structural strength of the elastic support member 239, it can also take into account the thickness of the hinge mechanism 23 in the Z-axis direction, which is conducive to realizing the thin design of the folding screen device 100 in the unfolded state or the folded state.

[0119] Please return to Fig.12 , along the extension direction of the rotation axis (first axis) of the first swing arm 232 and the base 231, the two ends of the elastic support member 239 are respectively flush with the two ends of the first support member 238, and the two ends of the elastic support member 239 are respectively flush with the two ends of the second support member 240. Along the direction perpendicular to the rotation axis (first axis) of the first swing arm 232 and the base 231, one end of the elastic support member 239 is flush with the end of the first support member 238 away from the base 231, and the other end of the elastic support member 239 is flush with the end of the second support member 240 away from the base 231. In this way, the support surface of the elastic support member 239 can be as large as possible, so that when the rotating shaft mechanism 23 is in the unfolded state, the support surface of the rotating shaft mechanism 23 has good flatness, ensuring the supporting performance of the supporting device 20 on the folding screen 10. In addition, it is also convenient to fix the elastic support member 239 on the first support member 238 and the second support member 240. In some other embodiments, when the hinge mechanism 23 is in the unfolded state, the elastic support member 239 may not completely cover the first support member 238 and the second support member 240 , and the elastic support member 239 only needs to cover the gap between the first support member 238 and the second support member 240 .

[0120] See also Fig.13 and Fig.14The shaft mechanism 23 further includes a synchronization mechanism 247, which includes a first gear 2471, a second gear 2472, and N transmission gears 2473. The first gear 2471 is fixed to the first swing arm 232, and the central axis of the first gear 2471 is collinear with the first axis. Specifically, the first gear 2471 is fixed to the third rotating shaft 241, that is, the first gear 2471 is indirectly fixed to the first swing arm 232 through the third rotating shaft 241. The second gear 2472 is fixed to the fourth swing arm 235, and the central axis of the second gear 2472 is collinear with the fourth axis. Specifically, the second gear 2472 is fixed to the fourth rotating shaft 242, that is, the second gear 2472 is indirectly fixed to the fourth swing arm 235 through the fourth rotating shaft 242. The N transmission gears 2473 are arranged on the base 231 and can rotate relative to the base 231. The N transmission gears 2473 are located between the first gear 2471 and the second gear 2472; the N transmission gears 2473 are arranged in sequence from the first gear 2471 to the second gear 2472; the first gear 2471, the N transmission gears 2473 and the second gear 2472 are meshed with each other. N is greater than or equal to 2, and N is an even number. For example, N can be 2 or 4 or 6 or 8, etc.

[0121] In this way, when one of the first swing arm 232 and the fourth swing arm 235 rotates relative to the base 231 so that the shaft mechanism 23 moves from the unfolded state to the folded state, the synchronization mechanism 247 can be used to drive the other to rotate synchronously relative to the base 231. Similarly, when one of the first swing arm 232 and the fourth swing arm 235 rotates relative to the base 231 so that the shaft mechanism 23 moves from the folded state to the unfolded state, the synchronization mechanism 247 can be used to drive the other to rotate synchronously relative to the base 231. Therefore, through the synchronization mechanism 247, the first swing arm 232 and the fourth swing arm 235 can be synchronously rotated at the same angle to reduce the difficulty of folding and unfolding the folding screen device 100.

[0122] See also Fig.24 and Fig.25 , Fig.24 This is a three-dimensional diagram of a partial structure of the rotating shaft mechanism 23 provided in some embodiments of the present application. Fig.25 for Fig.24 The diagram shows an assembly diagram of a partial structure of the rotating shaft mechanism 23 and the first supporting member 238 and the second supporting member 240 . Fig.24 and Fig.25 The embodiment shown is Fig.12 The difference of the illustrated embodiment is that the end of the second support member 240 away from the base 231 is directly rotatably connected to the third swing arm 234 . Fig.24 and Fig.25In the illustrated embodiment, the first swing arm 232 and the third swing arm 234 are symmetrically arranged on opposite sides of the base 231, the second swing arm 233 and the fourth swing arm 235 are symmetrically arranged on opposite sides of the base 231, the first connecting member 236 and the second connecting member 237 are symmetrically arranged on opposite sides of the base 231, and the first supporting member 238 and the second supporting member 240 are symmetrically arranged on both sides of the base 231, that is, the rotating shaft mechanism 23 is a symmetrical structure. The connection structure between the base 231, the third swing arm 234, the fourth swing arm 235, the second connecting member 237, and the second supporting member 240 is the same as the connection structure between the base 231, the first swing arm 232, the second swing arm 233, the first connecting member 236, and the first supporting member 238, and will not be repeated here.

[0123] In this way, please refer to Fig.26 and Fig. 27 , Fig.26 for Fig.25 The schematic diagram of the assembly structure of the partial structure of the rotating shaft mechanism 23 and the elastic support member 239 when they are in a folded state, Fig. 27 for Fig.26 The assembly diagram of the rotating shaft mechanism 23 and the folding screen 10 is shown. Since the end of the first support member 238 away from the base 231 is rotatably connected to the first swing arm 232, the first swing arm 232 is rotatably connected to the base 231, and the end of the second support member 240 away from the base 231 is rotatably connected to the third swing arm 234, and the third swing arm 234 is rotatably connected to the base 231, so that when the first swing arm 232 and the third swing arm 234 rotate relative to the base 231 to move the rotating shaft mechanism 23 from the unfolded state to the folded state, the end of the first support member 238 away from the base 231 is rotatably connected to the third swing arm 234. The distance between the end and the rotation axis (first axis) of the first swing arm 232 and the base 231 remains unchanged, and the distance between the end of the second support member 240 away from the base 231 and the rotation axis (third axis) of the third swing arm 234 and the base 231 remains unchanged. When the second part 12 of the folding screen 10 is bent and the hinge mechanism 23 is extended, the first support member 238 can slide relative to the folding screen 10 in a direction close to the base 231, and the second support member 240 can slide relative to the folding screen 10 in a direction close to the base 231.

[0124] Therefore, the elastic support member 239 does not need to be a split structure, and the two ends of the elastic support member 239 can be fixed to the first support member 238 and the second support member 240 respectively, thereby providing a continuous and complete support surface for the folding screen 10, improving the supporting performance of the support device 20 on the folding screen 10, and further improving the impact resistance of the folding screen 10. In addition, since the two ends of the elastic support member 239 are respectively fixed to the first support member 238 and the second support member 240, the end of the elastic support member 239 can be prevented from scratching the folding screen 10 and generating abnormal noise.

[0125] In some other embodiments, the elastic support member 239 may also be a split structure, with a portion of the elastic support member 239 (i.e., the first support portion) being stacked on the front side of the first support member 238 and the base 231, and another portion (i.e., the second support portion) being stacked on the front side of the second support member 240 and the base 231. The two ends of a portion of the elastic support member 239 are respectively fixed to the first support member 238 and the base 231, and the two ends of the other portion are respectively fixed to the second support member 240 and the base 231, and the surfaces of the two portions of the elastic support member 239 facing each other are in contact. In this way, the impact resistance of the folding screen 10 can also be improved, and the end of the elastic support member 239 can be prevented from scratching the folding screen 10 or the base 231 to produce abnormal noise.

[0126] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotating shaft mechanism, characterized in that: Used for a folding screen device, the folding screen device includes a folding screen, the folding screen includes a second part, the second part is supported by the rotating shaft mechanism, and the rotating shaft mechanism includes: Pedestal; a first swing arm, the first swing arm being rotatably connected to the base, and the first swing arm being rotatable relative to the base to enable the rotating shaft mechanism to move between an unfolded state and a folded state; A first support member, the first support member is located at the front side of the first swing arm; one end of the first support member away from the base is rotatably connected to the first swing arm; An elastic support member, the elastic support member includes a first support portion, the first support portion is stacked on the front side of the first support member and the base, the first support portion is fixed to the first support member, when the first swing arm rotates relative to the base to move the hinge mechanism from the unfolded state to the folded state, the portion of the first support portion fixed to the first support member can slide relative to the folding screen in a direction close to the base.

2. The rotating shaft mechanism according to claim 1, characterized in that: The rotation axis of the first swing arm and the base is a first axis; The pivot mechanism also includes a second swing arm, which is rotatably connected to the base. The rotation axis of the second swing arm and the base is a second axis, and the second axis is parallel to the first axis. The second swing arm is slidably connected to the first support member along a direction perpendicular to the first axis.

3. The rotating shaft mechanism according to claim 2, characterized in that: When the first swing arm rotates relative to the base to move the pivot mechanism from the unfolded state to the folded state, the second swing arm drives the end of the first support member close to the base to tilt toward the back side of the first swing arm relative to the end of the first support member away from the base, and the elastic support member bends.

4. The rotating shaft mechanism according to claim 2, characterized in that: The rotating shaft mechanism also includes: a first connecting member, wherein the first connecting member is rotatably connected to one of the second swing arm and the first swing arm, and is slidably connected to the other of the second swing arm and the first swing arm; When the first swing arm rotates relative to the base to move the pivot mechanism from the expanded state to the folded state, the end of the first connecting member away from the base moves in a direction perpendicular to the first axis toward a direction away from the base. When the first swing arm rotates relative to the base to move the pivot mechanism from the folded state to the expanded state, the end of the first connecting member away from the base moves in a direction perpendicular to the first axis toward a direction close to the base.

5. The rotating shaft mechanism according to claim 4, characterized in that: The rotating shaft mechanism also includes a first rotating shaft, which is arranged on one of the second swing arm and the first connecting member, and the other of the second swing arm and the first connecting member has a first mounting hole, and the first rotating shaft is passed through the first mounting hole.

6. The rotating shaft mechanism according to claim 5, characterized in that: The first support member has a first sliding groove; A portion of the first rotating shaft is slidably disposed in the first sliding groove.

7. The rotating shaft mechanism according to any one of claims 1 to 6, characterized in that: The rotating shaft mechanism also includes: a third swing arm, the third swing arm and the first swing arm are respectively arranged on opposite sides of the base, the third swing arm is rotatably connected to the base; the third swing arm can rotate relative to the base to enable the rotating shaft mechanism to move between an unfolded state and a folded state; A second support member, the second support member is located on the front side of the third swing arm, and one end of the second support member away from the base is rotatably connected to the third swing arm; the elastic support member also includes a second support part, the second support part is stacked on the front side of the second support member, and is fixed to the second support member.

8. The rotating shaft mechanism according to any one of claims 1 to 6, characterized in that: The rotating shaft mechanism also includes: a third swing arm, the third swing arm and the first swing arm are respectively arranged on opposite sides of the base, the third swing arm is rotatably connected to the base; the third swing arm can rotate relative to the base to enable the rotating shaft mechanism to move between an unfolded state and a folded state; a second connecting member, the second connecting member being rotatably connected to the third swing arm; A second support member, the second support member is located on the front side of the third swing arm, and one end of the second support member away from the base can be rotatably connected to the second connecting member; the elastic support member also includes a second supporting part, the second supporting part is stacked on the front side of the second support member, and is fixed to the second support member.

9. The rotating shaft mechanism according to claim 8, characterized in that: The rotation axis of the third swing arm and the base is a third axis; The rotating shaft mechanism also includes a fourth swing arm, which is rotatably connected to the base; the rotation axis of the fourth swing arm and the base is a fourth axis, and the fourth axis is parallel to the third axis; the fourth swing arm or the third swing arm is slidably connected to the second support member along a direction perpendicular to the fourth axis.

10. The rotating shaft mechanism according to claim 9, characterized in that: When the third swing arm rotates relative to the base to move the pivot mechanism from the unfolded state to the folded state, the fourth swing arm or the third swing arm drives the end of the second support member close to the base to tilt toward the back side of the third swing arm relative to the end of the second support member away from the base.

11. The rotating shaft mechanism according to claim 9, characterized in that: The fourth swing arm is also slidably connected to the second connecting member; When the third swing arm rotates relative to the base to move the pivot mechanism from the expanded state to the folded state, the end of the second connecting member away from the base moves in a direction perpendicular to the third axis toward a direction away from the base. When the third swing arm rotates relative to the base to move the pivot mechanism from the folded state to the expanded state, the end of the second connecting member away from the base moves in a direction perpendicular to the third axis toward a direction close to the base.

12. The rotating shaft mechanism according to claim 11, characterized in that: The second connecting member has a second sliding groove; The fourth swing arm has a first sliding portion, and the first sliding portion is slidably connected to the second sliding groove; The second support member has a third sliding groove; The rotating shaft mechanism further includes a second rotating shaft, which is disposed on the first sliding portion, and a portion of the second rotating shaft is slidably disposed in the third sliding groove.

13. The rotating shaft mechanism according to any one of claims 1 to 6, characterized in that: The elastic supporting member is a metal sheet or a carbon fiber sheet.

14. The rotating shaft mechanism according to any one of claims 1 to 6, characterized in that: Along the extension direction of the rotation axis of the first swing arm and the base, two ends of the elastic support member are respectively flush with two ends of the first support member.

15. A supporting device, characterized in that: include: a first shell; A rotating shaft mechanism, wherein the rotating shaft mechanism is the rotating shaft mechanism described in any one of claims 1 to 14, and the first swing arm is connected to the first shell.

16. A folding screen device, characterized in that: include: A folding screen, the folding screen comprising a first part and a second part connected to each other; A supporting device, wherein the supporting device is the supporting device according to claim 15, wherein the first part is fixed on the first shell, and the second part is supported on the rotating shaft mechanism.

Images