CN120819572A

CN120819572A - Hinge mechanism and folding screen device

Info

Publication number: CN120819572A
Application number: CN202410398141.7A
Authority: CN
Inventors: 苏帅; 金开放; 陈瑞豪; 董绍洪; 孟刚
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2024-04-02
Filing date: 2024-04-02
Publication date: 2025-10-21
Also published as: CN121358962A; WO2025208948A1

Abstract

The present application provides a hinge mechanism and a folding screen device, which relate to the technical field of folding screen devices and can improve the impact resistance of folding screen devices. Among them, the hinge mechanism includes a hinge base, a first support member, a first connecting member and a first sliding swing arm. The first support member is rotatably connected to the hinge base. The first connecting member is rotatably connected to the first support member, and the first connecting member is provided with a first circular arc slide rail and one of the first sliding parts. The first sliding swing arm is rotatably connected to the hinge base, and the first sliding swing arm is provided with the above-mentioned first circular arc slide rail and the other of the above-mentioned first sliding parts, and the first sliding part is slidably connected to the first circular arc slide rail. The hinge mechanism is used to realize the rotatable connection of the two shells.

Description

Rotating shaft mechanism and folding screen device

Technical Field

The application relates to the technical field of folding screen equipment, in particular to a rotating shaft mechanism and folding screen equipment.

Background

The folding screen device such as a folding screen mobile phone and a folding screen flat plate is internally provided with a rotating shaft mechanism which is used for supporting the complete machine to switch between an unfolding state and a folding state. The number of movable parts in the rotating shaft mechanism is large, and under the scenes of falling of the whole machine and the like, certain movable parts are easy to generate relative movement, so that the parts are broken or extruded and damage the folding screen, and the shock resistance of the whole machine is low.

Disclosure of Invention

The application provides a rotating shaft mechanism and folding screen equipment, which can improve the shock resistance of the folding screen equipment.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:

In a first aspect, a hinge mechanism is provided for a folding screen apparatus, the hinge mechanism including a hinge base, a first support, a first connector, and a first sliding swing arm, the first support rotatably connected to the hinge base. The first connecting piece is rotatably connected to the first supporting piece, the first connecting piece is provided with one of a first circular arc-shaped sliding rail and a first sliding part, the first sliding swing arm is rotatably connected to the rotating shaft base, the first sliding swing arm is provided with the other of the first circular arc-shaped sliding rail and the first sliding part, and the first sliding part is slidably connected to the first circular arc-shaped sliding rail.

Therefore, the first sliding part is matched with the first circular arc-shaped sliding rail to form a virtual rotating shaft structure, when the first connecting piece rotates between the unfolding state and the folding state, the first supporting piece rotates relative to the rotating shaft base, the first supporting piece simultaneously rotates relative to the first connecting piece, the first sliding swing arm rotates relative to the rotating shaft base, and the first sliding swing arm simultaneously also rotates relative to the first connecting piece. The hinge four-bar mechanism is formed by the rotating shaft base, the first supporting piece, the first connecting piece and the first sliding swing arm, the degree of freedom of the hinge four-bar mechanism is 1, the movement mode is unique, the structural stability is better, and the shock resistance of the folding screen equipment can be improved.

Optionally, the first circular arc-shaped sliding rail may be a sliding groove type sliding rail, and the first sliding portion is slidably accommodated in the first circular arc-shaped sliding rail. The structure is simple, the first arc-shaped sliding rail can be prevented from protruding outwards, and the structure compactness is improved.

Optionally, a surface of the first connector facing the folding screen in the folding screen device is the first surface. The first circular arc-shaped sliding rail is arranged on the first connecting piece. The first circular arc-shaped sliding rail comprises a first circular arc-shaped sliding rail section and a second circular arc-shaped sliding rail section. The two ends of the first circular arc-shaped sliding rail section in the length direction are a first end and a second end respectively, and the second end is located at one side of the first end, which is away from the rotating shaft base. The two ends of the second circular arc-shaped sliding rail section in the length direction are a third end and a fourth end respectively, the third end is connected with the second end, and the fourth end is positioned on one side of the third end, which is away from the first end. The distance from the first circular arc-shaped sliding rail section to the first surface is gradually reduced from the first end to the second end, and the distance from the second circular arc-shaped sliding rail section to the first surface is gradually increased from the third end to the fourth end. Or from the first end to the second end, the distance from the first circular arc-shaped sliding rail section to the first surface is gradually increased, and from the third end to the fourth end, the distance from the second circular arc-shaped sliding rail section to the first surface is gradually reduced. Therefore, on the premise that the radius of the first circular arc-shaped sliding rail is certain, the occupied height of the first circular arc-shaped sliding rail along the thickness direction of the whole machine in the unfolded state can be reduced, the thickness of the first connecting piece along the whole machine in the unfolded state can be reduced, and the thinning of the whole machine can be facilitated. Meanwhile, on the premise that the thickness of the first connecting piece is certain, the thickness of solid materials on the upper side and the lower side of the first circular arc-shaped sliding rail on the first connecting piece can be ensured, and the structural strength is ensured.

Optionally, when the rotating shaft mechanism rotates from the unfolded state to the folded state, the first sliding part slides from the first circular arc-shaped sliding rail section to the second circular arc-shaped sliding rail section.

Optionally, the rotating shaft mechanism further comprises a first decorative door plate, the first decorative door plate is arranged on one side of the first connecting piece, which is opposite to the folding screen in the folding screen device, and the first decorative door plate is fixedly connected with the first sliding swing arm. The first supporting piece, the first connecting piece and the first sliding swing arm can be shielded and protected by the aid of the first decorative door plate, and the neat consistency of appearance is guaranteed. In addition, in the process that the first sliding swing arm slides along the first circular arc-shaped sliding rail by means of the first sliding part, the first decorative door plate also swings along the circular arc-shaped extending path, and in the process, the height of the movable space of the first decorative door plate along the thickness direction of the whole machine is smaller, so that the thinning of the whole machine is facilitated. Under the certain prerequisite of complete machine thickness, because the activity space of first decoration door plant is along the ascending height of complete machine thickness direction less, consequently can increase the first connecting piece and follow the ascending height of complete machine thickness direction, can guarantee the structural strength of first connecting piece.

Optionally, the first connecting piece is provided with a via hole, and the first decorative door plate is provided with a threaded hole. The rotating shaft mechanism further comprises a threaded fastener, the head of the threaded fastener is arranged on one side, opposite to the first decorative door plate, of the first connecting piece, a part of the rod portion of the threaded fastener is contained in the through hole, and the other part of the rod portion of the threaded fastener is connected in the threaded hole in a threaded mode. The first decorative door plate and the first sliding swing arm are fixed together by means of the threaded fastener, the connecting mode is convenient to operate, the connecting stability is better, and the dismounting and the maintenance are convenient.

Optionally, the first sliding portion is disposed on the first sliding swing arm, and the first sliding portion forms a cam portion along at least one end of the length direction of the rotating shaft base. The spindle mechanism further includes a first off-axis damping structure including a first slider, a first contact member, and at least one first resilient member. The first sliding piece is connected to the first connecting piece in a sliding mode along the length direction of the rotating shaft base, the first contact piece is connected to the first sliding piece, the first elastic piece is arranged on one side, opposite to the cam portion, of the first sliding piece, and the first elastic piece is used for applying elastic force pointing to the cam portion to the first sliding piece so that the first contact piece can be in contact with the cam portion. Thus, when the spindle mechanism is switched between the extended and collapsed states, the first contact rolls along the cam portion, which includes at least one lobe and at least one recess, and illustratively includes one lobe and two recesses on opposite sides of the lobe, respectively. The first contact member is easily moved from the convex portion to the concave portion and is not easily moved from the concave portion to the convex portion under the action of the first elastic member, so that the first contact member can be stably held in at least one concave portion, and the rotating shaft mechanism can be maintained in one or more stable states.

Optionally, the first off-axis damping structure further comprises a first guide rod and a first bypass member. The first guide rod is arranged in the first elastic piece in a penetrating mode, one end of the first guide rod is fixed to the first sliding piece, the first avoiding piece is located on one side, opposite to the first sliding piece, of the first elastic piece, a sliding hole is formed in the first avoiding piece, the axial direction of the sliding hole is parallel to the sliding direction of the first sliding piece relative to the first connecting piece, and the other end of the first guide rod is slidably contained in the sliding hole. The first elastic piece can be limited by the aid of the first guide rod, and dislocation of the first elastic piece in the stretching process is prevented. The movable end part of the first guide rod can be accommodated by the first avoiding member, so that the first guide rod is prevented from interfering with other parts in the moving process.

Optionally, the rotating shaft mechanism further includes a first in-shaft damping structure, and the first in-shaft damping structure includes a first damping swing arm, a first cam, a second cam, and a second elastic member. One end of the first damping swing arm is rotatably connected to the rotating shaft base, the other end of the first damping swing arm is slidably connected to the first connecting piece, the first cam is arranged at the one end of the first damping swing arm and is provided with a first cam surface, and the first cam surface extends around the rotating shaft of the first damping swing arm relative to the rotating shaft base. The second cam is provided on a side facing the first cam surface, and has a second cam surface facing the first cam surface. The second elastic piece is arranged on one side of the second cam, which is opposite to the first cam, and is used for applying elastic force directed to the first cam to the second cam so as to enable the second cam surface to be in contact with the first cam surface. When the first damping swing arm rotates relative to the rotating shaft base, the first cam surface and the second cam surface rotate relatively. The pivot mechanism is switched between the extended state and the collapsed state, the second cam surface rotates relative to the first cam surface, the first cam surface includes at least one protrusion and at least one recess, the second cam surface includes at least one protrusion and at least one recess, and when the protrusion of the first cam surface engages with the recess of the second cam surface, the recess of the first cam surface engages with the protrusion of the second cam surface, the first damping swing arm can remain stable, so that the pivot mechanism can remain in one or more stable states.

Optionally, the rotating shaft mechanism further includes a synchronization assembly, and the synchronization assembly includes a first synchronization swing arm and a second synchronization swing arm. One end of the first synchronous swing arm is rotatably connected with the rotating shaft base, the other end of the first synchronous swing arm is slidably connected with the first connecting piece, one end of the second synchronous swing arm is rotatably connected with the rotating shaft base, the other end of the second synchronous swing arm is slidably connected with the second connecting piece, and the one end of the first synchronous swing arm and the one end of the second synchronous swing arm can synchronously and reversely rotate. Each synchronous swing arm can carry out reverse synchronous rotation for can carry out synchronous rotation between each connecting piece of pivot mechanism, promote user's use experience.

Optionally, the first support is an integrally formed structure. In this way, the first supporting piece comprises fewer parts, the assembly efficiency of the whole machine is higher, and the flatness of the surface used for supporting the folding screen on the first supporting piece can be ensured

Optionally, the material of the first support is amorphous.

Optionally, the material of the first support is a zirconium-based liquid metal.

Optionally, the hinge mechanism further comprises a shutter covering and secured to a surface of the hinge base facing the folding screen in the folding screen device. The hole on the rotating shaft base can be shielded by the shielding piece, and the support flatness of the folding screen can be improved.

Optionally, the shielding member is sheet-shaped, and the thickness of the shielding member is greater than or equal to 0.03mm and less than or equal to 0.05mm. Thus, the thickness of the shielding piece is thinner, and the influence on the thickness of the whole machine is smaller.

In a second aspect, there is also provided a folding screen apparatus comprising a folding screen, a first housing and a spindle mechanism according to any of the above aspects. The first connecting piece of pivot mechanism is connected in first casing, and a part of folding screen sets up in first casing, and another part sets up in pivot base, first support piece and the first connecting piece of pivot mechanism.

The folding screen device provided by the application comprises the rotating shaft mechanism according to any technical scheme, so that the folding screen device and the rotating shaft mechanism can solve the same technical problems and achieve the same effects.

Optionally, the rotating shaft mechanism further comprises a first decorative door plate, the first decorative door plate is arranged on one side of the first connecting piece, which is opposite to the folding screen in the folding screen device, and the first decorative door plate is fixedly connected with the first sliding swing arm. The first shell comprises a first back cover, the first back cover comprises a first back cover part, the first back cover part is positioned on one side of the first connecting piece, which is opposite to the folding screen, a first gap is formed between the first back cover part and the first connecting piece, and one end, far away from the rotating shaft base, of the first decorative door plate is accommodated in the first gap. Therefore, a certain overlap joint amount is arranged between the first decorative door plate and the first back cover, so that the internal structure of the rotating shaft mechanism can be prevented from being exposed, and the appearance consistency is guaranteed.

Optionally, when the rotating shaft mechanism is in the unfolded state, the first decorative door plate is inclined towards the first connecting piece from one end facing the rotating shaft base to one end far away from the rotating shaft base. Therefore, the back surface of the rotating shaft base is approximately flush with the first back cover, and the flatness of the whole machine in the unfolded state can be improved.

Drawings

Fig. 1 is a perspective view of a folding screen apparatus according to some embodiments of the present application in an unfolded state;

FIG. 2 is a perspective view of the folding screen apparatus of FIG. 1 in a folded state;

FIG. 3 is a perspective view of the folding screen apparatus of FIG. 1 in a semi-folded state;

fig. 4a is a top view of the support means of the folding screen apparatus of fig. 1-3;

fig. 4b is a bottom view of the support means in the folding screen apparatus of fig. 1-3;

FIG. 5a is a schematic view of a rotation mechanism in the supporting device from the perspective shown in FIG. 4 a;

FIG. 5b is a schematic view of the rotation mechanism in the supporting device from the view angle shown in FIG. 4 b;

FIG. 5c is a schematic view of a portion of the spindle mechanism shown in FIG. 5 b;

FIG. 5d is a perspective view of the spindle mechanism shown in FIG. 5 b;

FIG. 5e is a perspective view of the spindle mechanism shown in FIG. 5 c;

FIG. 5f is an exploded view of the spindle mechanism shown in FIG. 5 d;

FIG. 5g is a perspective view of the spindle mechanism of FIG. 5f from the bottom view;

FIG. 6 is a schematic cross-sectional view of the spindle mechanism shown in FIG. 5d along the direction A-A;

FIG. 7 is a schematic cross-sectional view of the spindle mechanism shown in FIG. 5d along the direction B-B;

FIG. 8a is a top view of the first support member of the spindle mechanism shown in FIGS. 5 a-5 g;

FIG. 8b is a bottom view of the first support shown in FIG. 8 a;

FIG. 9a is a schematic cross-sectional view of the spindle mechanism shown in FIG. 5d along the direction C-C;

FIG. 9b is a schematic view of the hinge mechanism shown in FIG. 9a in a folded state;

FIG. 10 is a schematic view of the assembly of the spindle base, first support member, first link and first slide swing arm of the spindle mechanism of FIGS. 5 a-5 g;

FIG. 11a is a schematic diagram illustrating an assembly structure of a rotation shaft mechanism, a first housing and a second housing according to still other embodiments of the present application;

FIG. 11b is a schematic view of the hinge mechanism in a folded state in the assembled configuration of FIG. 11 a;

FIG. 12 is a schematic view of an assembly of a spindle base, a first support, a first link and a first sliding swing arm of the spindle mechanism of FIGS. 11a and 11 b;

FIG. 13a is a view of a folding screen apparatus including the spindle mechanism of FIGS. 11a and 11b when it is dropped to the ground;

FIG. 13b is a force analysis diagram of the internal spindle mechanism of the folding screen apparatus of FIG. 13a when it is dropped to the ground;

FIG. 14a is a schematic diagram illustrating a connection structure between the spindle mechanism shown in FIG. 9a and the first and second housings;

FIG. 14b is a schematic diagram illustrating a connection structure between the rotating shaft mechanism shown in FIG. 9b and the first and second housings;

FIG. 15 is an exploded view of a portion of the structure of the spindle mechanism shown in FIG. 5 f;

FIG. 16 is an exploded view of the first and second in-shaft damping structures of the spindle mechanism of FIG. 15;

FIG. 17a is a top view of a spindle mechanism according to still other embodiments of the present application;

FIG. 17b is a schematic diagram of an exploded view of the first and second in-shaft damping structures in the spindle mechanism shown in FIG. 17 a.

Reference numerals:

100. a folding screen device;

10. A support device;

101. 1011, 1011a, the first back cover part;

102. 1021, a second back cover, 1021a, a second back cover portion;

103. A spindle mechanism;

1. The device comprises a rotating shaft base, an upper base, a lower base, 00, screws, 13, a circular arc chute, 14, a circular arc chute, 15, a circular arc chute, 16 and a circular arc chute;

2A, a first supporting piece, 21A, a first sliding piece, 22A, a third sliding piece, 2B, a second supporting piece, 21B, a second sliding piece, 22B and a fourth sliding piece;

3A, a first connecting piece, 31A, a first fixing block, 311A, a circular arc chute, 32A, a first circular arc sliding rail, 32A', a first linear chute, S1, a first surface, 321A, a first circular arc sliding rail section, d1, a first end, d2, a second end, 322A, a second circular arc sliding rail section, d3, a third end, d4, a fourth end, 33A, a first accommodating groove, 34A, a first chute, 35A, a first guiding groove, 36A, a cover body, 37A, a second accommodating groove, 371A, a first accommodating groove unit, 372A, a second accommodating groove unit, 38A, a second chute, 381A, a first chute unit, 382A, a second chute unit;

3B, a second connecting piece, 31B, a second fixing block, 311B, a circular arc chute, 32B, a second circular arc slide rail, 32B', a second linear chute, S2, a second surface, 321B, a third circular arc slide rail section, d5, a fifth end, d6, a sixth end, 322B, a fourth circular arc slide rail section, d7, a seventh end, d8 and an eighth end;

4A, a first sliding swing arm, 41A, a circular arc sliding sheet, 42A, a first sliding part, 4B, a second sliding swing arm, 41B, a circular arc sliding sheet, 42B, a second sliding part, 43A, a sinking groove, 44A and a containing groove;

5A, a first decorative door plate, 51A, a threaded hole, 52A, a door plate main body, 53A, a boss, 5B, a second decorative door plate, g1, a first gap, g2 and a second gap;

6. a threaded fastener;

7. The device comprises a synchronous component, a first synchronous swing arm, a first gear tooth, a third sliding part, a second synchronous swing arm, a first gear tooth, a second gear tooth, a third sliding part, a second gear tooth and a third gear tooth, wherein the first gear tooth is matched with the second gear tooth;

8. Damping assembly, 81, off-axis damping structure, 81A, first off-axis damping structure, 811A, first slider, 812A, first contact, 813A, first spring, 814A, first guide rod, 815A, first bypass, 81B, off-axis damping structure, 82, on-axis damping structure, 82A, first on-axis damping structure, 821A, first damping swing arm, 8211A, first extension, 8212A, second extension, 8213A, third extension, 822A, first cam, 823A, second cam, 824A, second spring, 825A, friction assembly, 8251A, rotational friction, 8252A, fixed friction, 826A, rotational shaft, 827A, sleeve 828A, fourth slider, 8281A, first slider, 8282A, second slider, 829A, stopper, 830A, spacer, 82B, and on-axis damping structure;

9. A shield;

20. Folding screen, 201, first part, 202, second part, 203, third part.

Detailed Description

In embodiments of the present application, the terms "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth" may explicitly or implicitly include one or more such features.

In embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The present application provides a folding screen device including, but not limited to, a user equipment (user equ ipment, UE) or a terminal device (termina l) and the like, for example, the folding screen device may be a tablet computer (portab le android device, PAD), a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device and the like mobile terminal or fixed terminal. The present application is illustratively described in terms of a folding screen device as a handheld device having wireless communication capabilities, such as a cell phone.

Referring to fig. 1-3, fig. 1 is a perspective view of a folding screen apparatus 100 in an unfolded state, fig. 2 is a perspective view of the folding screen apparatus 100 in a folded state shown in fig. 1, and fig. 3 is a perspective view of the folding screen apparatus 100 in a semi-folded state shown in fig. 1 according to some embodiments of the present application. In this embodiment, the folding screen apparatus 100 may be an out-folded folding screen apparatus. Of course, in other embodiments, the folding screen apparatus 100 may be an inwardly folded folding screen apparatus, and the present application is illustrated by using the folding screen apparatus 100 as an outwardly folded folding screen apparatus, which should not be construed as a particular limitation of the present application.

The folding screen apparatus 100 includes a support device 10 and a folding screen 20.

Referring to fig. 1-3 in combination with fig. 4a and 4b, fig. 4a is a top view of the support device 10 in the folding screen apparatus 100 shown in fig. 1-3, and fig. 4b is a bottom view of the support device 10 in the folding screen apparatus 100 shown in fig. 1-3. The support device 10 includes a first housing 101, a second housing 102, and a rotation shaft mechanism 103 connected between the first housing 101 and the second housing 102. The rotation shaft mechanism 103 is used to realize relative rotation between the second housing 102 and the first housing 101 to support the folding screen apparatus 100 to switch between the unfolded state, the semi-folded state, and the folded state.

Referring to fig. 1-3, the folding screen 20 is supported on the first housing 101, the second housing 102 and the rotating shaft mechanism 103, the portion of the folding screen 20 supported on the first housing 101 is a first portion 201, the portion supported on the second housing 102 is a second portion 202, and the portion supported on the rotating shaft mechanism 103 is a third portion 203. The folding screen 20 may be an organic light emitting diode (organ ic l ight-EMITT ING D iode, OLED) screen, a micro organic light emitting diode (micro organ ic l ight-EMITT ING D iode) screen, a quantum dot L IGHT EMITT ING D iode (QLED) screen, a liquid crystal display (l iqu ID CRYSTA L D I SP L AY, LCD), or the like.

When the folding screen apparatus 100 is in the unfolded state, referring to fig. 1, the first portion 201 and the second portion 202 may form a first angle, and the first angle may be 180 °. It will be appreciated by those skilled in the art that the first angle may also be 90 °, 120 °, 210 °, etc., and that the application is not limited thereto and that the angles illustrated by the application allow for a few deviations. For example, the first angle may be 180 °, or may be about 180 °, such as 170 °, 175 °, 185 °, 190 °, etc., as will be understood in the following. When the folding screen device 100 is in the unfolded state, a large screen display can be implemented to provide the user with richer information, leading to a better use experience for the user.

When the folding screen apparatus 100 is in the folded state, referring to fig. 2, the first housing 101 and the second housing 102 can be completely folded to a state of being substantially parallel to each other (allowing a slight deviation) and being disposed in a stacked state, and the first housing 101 and the second housing 102 can be regarded as approximately 0 ° therebetween. The first portion 201 is located on a side of the first housing 101 facing away from the second housing 102, the second portion 202 is located on a side of the second housing 102 facing away from the first housing 101, and an included angle between the first portion 201 and the second portion 202 is a second angle, which may be 360 °. It will be appreciated by those skilled in the art that the second angle may also be 270 °, 300 °, 340 °, etc. when the folding screen apparatus 100 is in the folded state, as the application is not limited in this regard. When the folding screen apparatus 100 is in the folded state, the folding screen apparatus 100 is reduced in size, convenient to carry, and simultaneously the folding screen 20 is exposed, so that video and image information can be displayed.

When the folding screen apparatus 100 is in the semi-folded state, referring to fig. 3, the included angle between the first portion 201 and the second portion 202 is a third angle, and the third angle may be any angle value between the first angle and the second angle.

Referring to fig. 5 a-5 g, fig. 5a is a schematic structural diagram of the rotating mechanism 103 in the supporting device 10 under the view angle shown in fig. 4a, fig. 5b is a schematic structural diagram of the rotating mechanism 103 in the supporting device 10 under the view angle shown in fig. 4b, fig. 5c is a schematic structural diagram of a part of the rotating mechanism 103 shown in fig. 5b, fig. 5d is a perspective view of the rotating mechanism 103 shown in fig. 5b, fig. 5e is a perspective view of the rotating mechanism 103 shown in fig. 5c, fig. 5f is a schematic exploded structural diagram of the rotating mechanism 103 shown in fig. 5d, and fig. 5g is a perspective view of the rotating mechanism 103 under the bottom view shown in fig. 5 f.

The spindle mechanism 103 may include a spindle base 1, a first support 2A, a second support 2B, a first link 3A, a second link 3B, a first slide swing arm 4A, and a second slide swing arm 4B.

It should be noted that, in the following embodiments, unless otherwise specified, "front side" used to describe each component in the spindle mechanism 103 refers to a side of the component to be described facing the folding screen 20, "front end face" refers to a surface of the component to be described facing the folding screen 20, "back side" refers to a side of the component to be described facing away from the folding screen 20, and "back side" refers to a surface of the component to be described facing away from the folding screen 20.

The spindle base 1 may be referred to as a center sill for providing a positional reference datum within the spindle mechanism 103. The spindle base 1 may be a single structural member or may be assembled from a plurality of components. The spindle base 1 is elongated, and based on this, an XYZ coordinate system is established for convenience of description. For example, referring to fig. 5a to 5g, the width direction of the spindle base 1 is defined as the X-axis direction, the length direction is defined as the Y-axis direction, and the thickness direction is defined as the Z-axis direction. It can be understood that the coordinate system of the spindle base 1 can be flexibly set according to actual needs, which is not specifically limited herein.

Referring to fig. 6, and referring to fig. 5f and 5g in combination, fig. 6 is a schematic cross-sectional structure of the spindle mechanism 103 shown in fig. 5d along A-A. The spindle base 1 may include an upper base 11 and a lower base 12. The upper base 11 is located at the front side of the lower base 12, and the upper base 11 and the lower base 12 may be fixedly connected using at least one screw 00. In other embodiments, the upper base 11 and the lower base 12 may be fixedly connected by welding, clamping, or the like, which is not particularly limited in the present application.

In this way, the rotating shaft base 1 is formed by at least assembling the upper base 11 and the lower base 12, which is convenient for assembling the support and the sliding swing arm on the rotating shaft base 1.

In some embodiments, referring to fig. 5a, 5f, 5g and 6, the spindle mechanism 103 further comprises a shutter 9. The shielding member 9 is covered and fixed on the front end surface of the spindle base 1, specifically, the shielding member 9 is covered and fixed on the surface of the upper base 11 facing away from the lower base 12, alternatively, the shielding member 9 may be adhesively fixed on the surface of the upper base 11 facing away from the lower base 12, or may be welded and fixed on the surface of the upper base 11 facing away from the lower base 12, which is not particularly limited in the present application. The hole on the rotating shaft base 1 can be shielded by the shielding piece 9, so that the support flatness of the folding screen can be improved.

In some embodiments, a glue layer (not shown) is provided between the shutter 9 and the spindle base 1, by means of which glue layer the shutter 9 is glued to the spindle base 1. The uniformity of the adhesive layer is better, the bonding effect can be ensured, and better crease and light and shadow effects can be realized.

In some embodiments, the shield 9 is sheet-like and the material of the shield 9 is a metal including, but not limited to, stainless steel, copper alloy, aluminum alloy, titanium alloy, and the like. Thus, the thickness of the shielding piece 9 can be reduced on the premise of ensuring the structural strength of the shielding piece 9, and the influence on the whole thickness is small.

In some embodiments, the thickness of the shield 9 is greater than or equal to 0.03mm and less than or equal to 0.05mm. Alternatively, the thickness of the shield 9 may be 0.03mm, 0.04mm or 0.05mm. In this way, the thickness of the shield 9 is thinner, with less impact on the overall thickness.

Referring to fig. 5 a-5 g, the first supporting member 2A and the second supporting member 2B are respectively disposed on two sides of the rotating shaft base 1 in the width direction, and the front end surface of the first supporting member 2A and the front end surface of the second supporting member 2B are used for being fixed with the folding screen so as to support the folding screen. The first support 2A is rotatably connected to the spindle base 1. For example, referring to fig. 7 in combination with fig. 5f and fig. 5g, fig. 7 is a schematic cross-sectional structure of the rotating shaft mechanism 103 shown in fig. 5d along the direction B-B, and one side of the first support member 2A in the width direction may be rotatably connected to the circular arc chute 13 of the rotating shaft base 1 by means of the first sliding member 21A, so that the first support member 2A may rotate relative to the rotating shaft base 1 about the center line of the circular arc chute 13.

Likewise, the second support 2B is rotatably connected to the spindle base 1. For example, referring to fig. 5f and 5g, one side of the second support member 2B in the width direction may be rotatably connected to the circular arc chute 14 of the rotation shaft base 1 by the second slider 21B, so that the second support member 2B is rotatably connected to the rotation shaft base 1. In this way, the first support 2A and the second support 2B are rotatable with respect to the spindle base 1, respectively.

In the above embodiment, the first support 2A and the second support 2B may be integrally formed, or may be formed by multi-stage connection. In some embodiments, referring to fig. 8a and 8b, fig. 8a is a top view of the first support 2A in the spindle mechanism 103 shown in fig. 5 a-5 g, and fig. 8b is a bottom view of the first support 2A shown in fig. 8a, where the first support 2A may be an integrally formed structure. Like this, the first support piece 2A includes fewer spare part, and the assembly efficiency of complete machine is higher, can guarantee simultaneously that the roughness of the surface that is used for supporting the folding screen on the first support piece 2A. Likewise, the second supporting member 2B may be an integrally formed structure, so as to improve the assembly efficiency of the complete machine, and ensure the flatness of the surface of the second supporting member 2B for supporting the folding screen.

In some embodiments, the material of the first support 2A and the second support 2B may be amorphous (also referred to as liquid metal). The amorphous phase may be a zirconium-based liquid metal. The first support 2A and the second support 2B may be integrally formed by die casting. In this way, the first support 2A and the second support 2B have high structural strength and high dimensional accuracy. Of course, in other embodiments, the materials of the first support 2A and the second support 2B may be conventional metals such as stainless steel, aluminum alloy, and the application is not limited thereto.

With continued reference to fig. 5 a-5 g, the first connecting piece 3A and the second connecting piece 3B are also disposed on two sides of the rotating shaft base 1 in the width direction, and the first connecting piece 3A and the first supporting piece 2A are disposed on the same side of the rotating shaft base 1 in the width direction, and the second connecting piece 3B and the second supporting piece 2B are disposed on the same side of the rotating shaft base 1 in the width direction.

The first link 3A is rotatably connected to the first support 2A. For example, referring to fig. 5f and fig. 5g, the rotation shaft mechanism 103 further includes a first fixing block 31A, where the first fixing block 31A is fixed to the first connecting member 3A, alternatively, the first fixing block 31A may be fixed to the first connecting member 3A by using a threaded fastener, and before the first fixing block 31A is fixedly connected to the first connecting member 3A, a positioning column and a positioning hole may be used between the first fixing block 31A and the first connecting member 3A to match to achieve the predetermined positioning. The first fixing block 31A is provided with a circular arc chute 311A, and the circular arc chute 311A is rotatably connected to the third sliding member 22A of the first supporting member 2A, so that the first connecting member 3A can rotate relative to the first supporting member 2A about the center line of the circular arc chute 311A.

Likewise, the second connecting member 3B is rotatably connected to the second supporting member 2B. For example, referring to fig. 5f and fig. 5g, the rotation shaft mechanism 103 further includes a second fixing block 31B, where the second fixing block 31B is fixed on the second connecting member 3B, alternatively, the second fixing block 31B may be fixed on the second connecting member 3B by using a threaded fastener, and before the second fixing block 31B is fixedly connected to the second connecting member 3B, a positioning column and a positioning hole may also be matched between the second fixing block 31B and the second connecting member 3B to achieve the predetermined positioning. The second fixing block 31B is provided with a circular arc chute 311B, and the circular arc chute 311B is rotatably connected to the fourth sliding member 22B of the second supporting member 2B, so that the second connecting member 3B can rotate relative to the second supporting member 2B about the center line of the circular arc chute 311B.

The first sliding swing arm 4A is rotatably connected to the spindle base 1. In some embodiments, referring to fig. 5f and 5g, the first sliding swing arm 4A has a circular arc sliding piece 41A, the rotating shaft base 1 is provided with a circular arc sliding groove 15, and the circular arc sliding piece 41A is slidably accommodated in the circular arc sliding groove 15, so that the first sliding swing arm 4A can rotate relative to the rotating shaft base 1 around a circle center line of the circular arc sliding groove 15. Similarly, the second sliding swing arm 4B is rotatably connected to the spindle base 1. In some embodiments, referring to fig. 5f and 5g, the second sliding swing arm 4B has a circular arc sliding piece 41B, the rotating shaft base 1 is provided with a circular arc sliding groove 16, and the circular arc sliding piece 41B is slidably received in the circular arc sliding groove 16, so that the second sliding swing arm 4B can rotate relative to the rotating shaft base 1 around a center line of the circular arc sliding groove 16.

Referring to fig. 5f and fig. 5g in combination with fig. 9a and fig. 9b, fig. 9a is a schematic cross-sectional structure of the rotating shaft mechanism 103 along the C-C direction shown in fig. 5d, the rotating shaft mechanism 103 shown in fig. 9a is in an unfolded state, and fig. 9b is a schematic structural view of the rotating shaft mechanism 103 shown in fig. 9a in a folded state. The first connecting piece 3A may be provided with a first circular arc-shaped sliding rail 32A, where a circular line corresponding to the first circular arc-shaped sliding rail 32A is a first circular line (not shown in the figure), and the first circular line is parallel to the Y-axis direction. The first sliding swing arm 4A may further include a first sliding portion 42A, where the first sliding portion 42A is slidably connected to the first circular arc-shaped sliding rail 32A.

In other embodiments, the arrangement positions of the first circular arc-shaped sliding rail 32A and the first sliding portion 42A may be interchanged, that is, the first circular arc-shaped sliding rail 32A is disposed on the first sliding swing arm 4A, and the first sliding portion 42A is disposed on the first connecting member 3A. The present embodiment and the following embodiments are further described on the basis that the first circular arc slide rail 32A is provided to the first link 3A and the first sliding portion 42A is provided to the first sliding swing arm 4A, and this should not be construed as a particular limitation of the configuration of the present application. When the first circular arc-shaped sliding rail 32A is disposed on the first connecting piece 3A and the first sliding portion 42A is disposed on the first sliding swing arm 4A, the layout of the rotating shaft mechanism 103 is more reasonable.

The first circular arc-shaped sliding rail 32A can be a sliding chute type sliding rail or a sliding rod type sliding rail, and the application is exemplified by taking the first circular arc-shaped sliding rail 32A as a sliding chute type sliding rail, based on which, the first sliding part 42A can be slidably accommodated in the first circular arc-shaped sliding rail 32A, so that the structure is simple, the first circular arc-shaped sliding rail 32A can be prevented from protruding outwards, and the structure compactness is improved.

Similarly, the second connecting piece 3B is provided with a second circular arc-shaped sliding rail 32B, and a circular axis corresponding to the second circular arc-shaped sliding rail 32B is a second circular axis (not shown in the figure), and the second circular axis is parallel to the Y-axis direction. The second sliding swing arm 4B further includes a second sliding portion 42B, and the second sliding portion 42B is slidably connected to the second circular arc-shaped sliding rail 32B.

In other embodiments, the setting positions of the second circular arc-shaped sliding rail 32B and the second sliding portion 42B may be interchanged, that is, the second circular arc-shaped sliding rail 32B is disposed on the second sliding swing arm 4B, and the second sliding portion 42B is disposed on the second connecting member 3B. The present embodiment and the following embodiments are further described on the basis that the second circular arc slide rail 32B is provided to the second connector 3B and the second sliding portion 42B is provided to the second sliding swing arm 4B, and this should not be construed as a particular limitation of the configuration of the present application. When the second circular arc-shaped sliding rail 32B is disposed on the second connecting piece 3B and the second sliding portion 42B is disposed on the second sliding swing arm 4B, the layout of the rotating shaft mechanism 103 is more reasonable.

The second circular arc-shaped sliding rail 32B can be a sliding chute type sliding rail or a sliding rod type sliding rail, and the application is exemplified by taking the second circular arc-shaped sliding rail 32B as a sliding chute type sliding rail, based on which the second sliding part 42B can be slidably accommodated in the second circular arc-shaped sliding rail 32B, and the structure is simple, so that the second circular arc-shaped sliding rail 32B can be prevented from protruding outwards, and the structure compactness is improved.

Thus, the first sliding portion 42A cooperates with the first circular arc-shaped sliding rail 32A to form a virtual rotating shaft structure, and the second sliding portion 42B cooperates with the second circular arc-shaped sliding rail 32B to form a virtual rotating shaft structure. When the first link 3A and the second link 3B are rotated between the unfolded state and the folded state, the first support 2A is rotated with respect to the rotation shaft base 1 while the first support 2A is rotated with respect to the first link 3A, the first sliding swing arm 4A is rotated with respect to the rotation shaft base 1 while the first sliding swing arm 4A is also rotated with respect to the first link 3A, the second support 2B is rotated with respect to the rotation shaft base 1 while the second support 2B is rotated with respect to the second link 3B, and the second sliding swing arm 4B is rotated with respect to the rotation shaft base 1 while the second sliding swing arm 4B is also rotated with respect to the second link 3B.

Referring to fig. 10, fig. 10 is a schematic structural diagram of an assembly of the rotating shaft mechanism 103 shown in fig. 5 a-5 g, which is a four-bar hinge mechanism, wherein the four-bar hinge mechanism has a degree of freedom of 1, a unique movement mode, a better structural stability and a better impact resistance, and is composed of the rotating shaft base 1, the first supporting member 2A, the first connecting member 3A and the first sliding swing arm 4A. The assembly composed of the rotating shaft base 1, the second supporting member 2B, the second connecting member 3B and the second sliding swing arm 4B is also a hinge four-bar mechanism, and the structure diagram of the hinge four-bar mechanism is the same as that shown in fig. 10, and is not described herein.

To further illustrate the above technical effects, as a comparative example, referring to fig. 11a and 11b, fig. 11a is a schematic diagram illustrating an assembly structure of a rotating shaft mechanism 103 and a first housing 101 and a second housing 102 according to still another embodiment of the present application, the rotating shaft mechanism 103 shown in fig. 11a is in an unfolded state, and fig. 11b is a schematic diagram illustrating a structure of the rotating shaft mechanism 103 in a folded state in the assembly structure shown in fig. 11a, in which the first connecting member 3A is provided with a first linear chute 32A ', and the first sliding portion 42A is slidably received in the first linear chute 32A'. The second connecting piece 3B is provided with a second linear chute 32B ', and the second sliding portion 42B is slidably accommodated in the second linear chute 32B'. Thus, referring to fig. 12, fig. 12 is a schematic structural diagram of an assembly composed of the rotating base 1, the first supporting member 2A, the first connecting member 3A and the first sliding swing arm 4A in the rotating shaft mechanism 103 shown in fig. 11a and 11b, wherein the degree of freedom of the assembly is also 1, the movement mode is also unique, and the movement stability of the rotating shaft mechanism 103 in the switching process between the unfolded state and the folded state can be ensured. The structural diagram of the assembly composed of the rotating shaft base 1, the second supporting member 2B, the second connecting member 3B and the second sliding swing arm 4B is the same as that shown in fig. 12, and a detailed description thereof is omitted.

In some scenarios, for example, when the folding screen apparatus 100 is in a folded state and is dropped onto the ground, please refer to fig. 13a and 13b, fig. 13a is a view of the folding screen apparatus 100 including the hinge mechanism 103 shown in fig. 11a and 11b when it is dropped onto the ground, and fig. 13b is a force analysis view of the inner hinge mechanism 103 of the folding screen apparatus 100 shown in fig. 13a when it is dropped onto the ground. At the moment when the folding screen apparatus 100 lands, the hinge base 1 receives the impact force F from the ground, and the first and second housings 101 and 102 continue to move downward by inertia and apply the impact forces F1 and F2 to the first and second links 3A and 3B, respectively. Because the first connecting piece 3A and the first sliding swing arm 4A and the second connecting piece 3B and the second sliding swing arm 4B are slidably connected by adopting the linear sliding pair, the stability of the linear sliding pair is lower, and the sliding pair can relatively slide under the action of the impact forces F1 and F2, so that the part of the first connecting piece 3A connected with the first sliding swing arm 4A and the part of the second connecting piece 3B connected with the second sliding swing arm 4B can continuously move downwards, thereby downwards extruding the third part 203 of the folding screen 20, forcing the third part 203 to deform or even damage to a greater extent, and leading to lower impact resistance of the folding screen device 100.

Compared with the embodiment shown in fig. 11a and 11B, since the first connecting member 3A and the first sliding swing arm 4A and the second connecting member 3B and the second sliding swing arm 4B in the rotating shaft mechanism 103 shown in fig. 9a and 9B are slidably connected by using the circular arc sliding pair, the stability of the circular arc sliding pair is higher, the possibility that the rotating pair slides relatively due to the impact forces F1 and F2 in the above-mentioned scene is smaller, and the third portion 203 is not easily pressed, so that the impact resistance of the folding screen apparatus 100 is higher.

In some embodiments, please refer to fig. 9a with emphasis, the front surface of the first connecting member 3A is defined as the first surface S1. Based on this, the first circular arc slide rail 32A includes a first circular arc slide rail section 321A and a second circular arc slide rail section 322A. The two ends of the first circular arc-shaped sliding rail section 321A in the length direction are a first end d1 and a second end d2 respectively, and the second end d2 is located at one side of the first end d1, which is away from the rotating shaft base 1. The two ends of the second circular arc-shaped sliding rail section 322A in the length direction are a third end d3 and a fourth end d4 respectively, the third end d3 is connected with the second end d2, and the fourth end d4 is located at one side of the third end d3, which is far away from the first end d 1.

The distance from the first circular arc-shaped sliding rail section 321A to the first surface S1 is gradually reduced from the first end d1 to the second end d2, and the distance from the second circular arc-shaped sliding rail section 322A to the first surface S1 is gradually increased from the third end d3 to the fourth end d 4. That is, the first circular arc shaped slide rail 32A arches toward the first surface S1.

In this way, on the premise that the radius of the first circular arc-shaped sliding rail 32A is fixed, the occupied height of the first circular arc-shaped sliding rail 32A along the Z-axis direction in the unfolded state can be reduced, which is beneficial to reducing the thickness of the first connecting piece 3A along the Z-axis direction in the unfolded state, thereby being beneficial to the thinning of the whole machine. Meanwhile, on the premise that the thickness of the first connecting piece 3A along the Z-axis direction is certain, the thickness of solid materials on the upper side and the lower side of the first circular arc-shaped sliding rail 32A on the first connecting piece 3A can be ensured, and the structural strength is ensured.

In other embodiments, the distance from the first end d1 to the second end d2, the first circular arc shaped rail segment 321A to the first surface S1 may also gradually increase, and the distance from the third end d3 to the fourth end d4, the second circular arc shaped rail segment 322A to the first surface S1 may also gradually decrease. That is, the first circular arc shaped slide rail 32A arches in a direction away from the first surface S1. The occupied height of the first circular arc-shaped sliding rail 32A along the Z-axis direction can be reduced, the thinning of the whole machine is facilitated, and the structural strength of the first connecting piece 3A is ensured.

Similarly, with continued reference to fig. 9a, the front end surface of the second connecting member 3B is defined as the second surface S2. Based on this, the second circular arc slide rail 32B includes a third circular arc slide rail section 321B and a fourth circular arc slide rail section 322B. The two ends of the third circular arc-shaped sliding rail section 321B in the length direction are a fifth end d5 and a sixth end d6 respectively, and the sixth end d6 is located at one side of the fifth end d5, which is away from the rotating shaft base 1. The two ends of the fourth circular arc-shaped sliding rail segment 322B in the length direction are a seventh end d7 and an eighth end d8, the seventh end d7 is connected with the sixth end d6, and the eighth end d8 is located at one side of the seventh end d7, which is away from the fifth end d 5.

The distance from the third circular arc-shaped sliding rail section 321B to the second surface S2 gradually decreases from the fifth end d5 to the sixth end d6, and the distance from the seventh end d7 to the eighth end d8, and the distance from the fourth circular arc-shaped sliding rail section 322B to the second surface S2 gradually increases. That is, the second circular arc shaped slide rail 32B arches toward the second surface S2.

In this way, on the premise that the radius of the second circular arc-shaped sliding rail 32B is fixed, the occupied height of the second circular arc-shaped sliding rail 32B along the Z-axis direction in the unfolded state can be reduced, which is beneficial to reducing the thickness of the second connecting piece 3B along the Z-axis direction in the unfolded state, thereby being beneficial to the thinning of the whole machine. Meanwhile, on the premise that the thickness of the second connecting piece 3B along the Z-axis direction is certain, the thickness of solid materials on the upper side and the lower side of the second circular arc-shaped sliding rail 32B on the second connecting piece 3B can be ensured, and the structural strength is ensured.

In other embodiments, the distance from the fifth end d5 to the sixth end d6, the third circular arc shaped sliding rail segment 321B to the second surface S2 is gradually increased, and the distance from the seventh end d7 to the eighth end d8, the fourth circular arc shaped sliding rail segment 322B to the second surface S2 is gradually decreased. That is, the second circular arc shaped slide rail 32B arches in a direction away from the second surface S2. The occupied height of the second circular arc-shaped sliding rail 32B along the Z-axis direction can be reduced, the thinning of the whole machine is facilitated, and the structural strength of the second connecting piece 3B is ensured.

In some embodiments, referring to fig. 9a and 9b in combination, when the spindle mechanism 103 rotates from the unfolded state to the folded state on the basis of the first circular arc-shaped sliding rail 32A arching towards the first surface S1, the first sliding portion 42A slides from the first circular arc-shaped sliding rail section 321A towards the second circular arc-shaped sliding rail section 322A. Thus, in the unfolded state to the folded state, the first link 3A is rotated by 90 °, the first sliding swing arm 4A is rotated with respect to the first link 3A, and the angle by which the first sliding swing arm 4A is rotated from the unfolded state to the folded state is greater than 90 °.

Similarly, with continued reference to fig. 9a and 9B, when the rotation shaft mechanism 103 rotates from the unfolded state to the folded state on the basis of the second circular arc shaped slide rail 32B arching to the second surface S2, the second sliding portion 42B slides from the third circular arc shaped slide rail section 321B to the fourth circular arc shaped slide rail section 322B. Thus, the second link 3B rotates by 90 ° from the unfolded state to the folded state, the second slide swing arm 4B rotates with respect to the second link 3B, and the angle by which the second slide swing arm 4B rotates from the unfolded state to the folded state is greater than 90 °.

In other embodiments, the first sliding portion 42A slides from the first circular arc shaped rail section 321A to the second circular arc shaped rail section 322A when the spindle mechanism 103 rotates from the unfolded state to the folded state on the basis of the first circular arc shaped rail 32A arching away from the first surface S1. Thus, in the unfolded state to the folded state, the first link 3A is rotated by 90 °, the first sliding swing arm 4A is rotated with respect to the first link 3A, and the first sliding swing arm 4A is rotated by an angle smaller than 90 ° from the unfolded state to the folded state.

When the rotation shaft mechanism 103 rotates from the unfolded state to the folded state, the second sliding portion 42B slides from the third circular arc slide rail section 321B to the fourth circular arc slide rail section 322B on the basis of the second circular arc slide rail 32B arching in a direction away from the second surface S2. Thus, the second link 3B rotates by 90 ° from the unfolded state to the folded state, the second slide swing arm 4B rotates with respect to the second link 3B, and the second slide swing arm 4B rotates by an angle smaller than 90 ° from the unfolded state to the folded state.

In some embodiments, referring to fig. 9a and 9B with emphasis, referring to fig. 5B, 5d, 5f, and 5g in combination, the rotation shaft mechanism 103 may further include a first decorative door panel 5A and a second decorative door panel 5B.

The first decorative door panel 5A is disposed on the back side of the first connecting member 3A, and the first decorative door panel 5A is fixedly connected with the first sliding swing arm 4A. By means of the first decorative door panel 5A, the first supporting member 2A, the first connecting member 3A and the first sliding swing arm 4A can be shielded and protected, and the neat consistency of the appearance is ensured. In addition, in the process that the first sliding swing arm 4A slides along the first circular arc sliding rail 32A by means of the first sliding part 42A, the first decorative door panel 5A also swings along the circular arc extending path, and in the process, the height of the movable space of the first decorative door panel 5A along the thickness direction of the whole machine is smaller, so that the thinning of the whole machine is facilitated. On the premise of a certain thickness of the whole machine, the movable space of the first decorative door plate 5A is smaller along the thickness direction of the whole machine, so that the height of the first connecting piece 3A along the thickness direction of the whole machine can be increased, and the structural strength of the first connecting piece 3A can be ensured.

In some embodiments, referring to fig. 14a and fig. 14b, fig. 14a is a schematic diagram illustrating a connection structure between the rotating shaft mechanism 103 and the first housing 101 and the second housing 102 shown in fig. 9a, and fig. 14b is a schematic diagram illustrating a connection structure between the rotating shaft mechanism 103 and the first housing 101 and the second housing 102 shown in fig. 9 b. In the present embodiment, the first housing 101 includes the first back cover 1011, the first back cover 1011 includes the first back cover portion 1011a, the first back cover portion 1011a is located at the back side of the first connection member 3A, and the first back cover portion 1011a has the first gap g1 with the first connection member 3A. One end of the first decorative door panel 5A far away from the rotating shaft base 1 is accommodated in the first gap g1, and when the first sliding swing arm 4A slides along the first circular arc sliding rail 32A, one end of the first decorative door panel 5A far away from the rotating shaft base 1 moves along the first gap g1. In this way, a certain overlap is provided between the first decorative door panel 5A and the first back cover 1011, which can prevent the internal structure of the rotation shaft mechanism 103 from being exposed, thereby being beneficial to ensuring the consistency of the appearance.

In some embodiments, referring to fig. 14a, in the unfolded state of the hinge mechanism 103, the first decorative door panel 5A is inclined toward the first connector 3A from the end toward the hinge base 1 to the end away from the hinge base 1. Thus, the back surface of the rotating shaft base 1 is substantially flush with the first back cover 1011, and the flatness of the whole machine in the unfolded state can be increased.

In order to illustrate the technical effect of combining the above-mentioned features, in the comparative example, referring to fig. 11a, the first linear chute 32A' is inclined to the front side from the end facing the hinge base 1 to the end far away from the hinge base 1, so as to avoid the first decorative door panel 5A from interfering with the first back cover 1011 during the movement of the first decorative door panel in the unfolded state and the folded state. Based on this, in order to avoid interference between the first decorative door panel 5A and the first connector 3A, the area Q needs to be eliminated on the first connector 3A to avoid the first decorative door panel 5A, resulting in lower structural strength of the first connector 3A, and difficulty in thinning the whole machine. Under the condition that the first circular arc-shaped sliding rail 32A arches towards the first surface S1, when the rotating shaft mechanism 103 rotates from the unfolded state to the folded state, the first sliding part 42A slides from the first circular arc-shaped sliding rail section 321A to the second circular arc-shaped sliding rail section 322A, and drives one end, far away from the rotating shaft base 1, of the first decorative door panel 5A to swing towards the first back cover portion 1011A relative to one end, facing the rotating shaft base 1, of the first decorative door panel 5A, so as to avoid interference with the first connecting piece 3A in the process of moving the first decorative door panel 5A between the unfolded state and the folded state, thereby ensuring the structural strength of the first connecting piece 3A and being beneficial to the thinning of the whole machine.

Similarly, the second decorative door panel 5B is disposed on the back side of the second connecting member 3B, and the second decorative door panel 5B is fixedly connected with the second sliding swing arm 4B. The second supporting piece 2B, the second connecting piece 3B and the second sliding swing arm 4B can be shielded and protected by the second decorative door plate 5B, so that the neat consistency of the appearance is ensured. In addition, in the process that the second sliding swing arm 4B slides along the second circular arc sliding rail 32B by means of the second sliding part 42B, the second decorative door panel 5B also swings along the circular arc extending path, and in the process, the height of the movable space of the second decorative door panel 5B along the thickness direction of the whole machine is smaller, so that the thinning of the whole machine is facilitated. On the premise of a certain thickness of the whole machine, the movable space of the second decorative door plate 5B is smaller along the thickness direction of the whole machine, so that the height of the second connecting piece 3B along the Z-axis direction can be increased, and the structural strength of the second connecting piece 3B can be ensured.

In some embodiments, referring to fig. 11a, the second housing 102 includes a second back cover 1021, the second back cover 1021 includes a second back cover portion 1021a, the second back cover portion 1021a is located on the back side of the second connecting member 3B, and a second gap g2 is provided between the second back cover portion 1021a and the second connecting member 3B. One end of the second decorative door panel 5B far away from the rotating shaft base 1 is accommodated in the second gap g2, and when the second sliding swing arm 4B slides along the second circular arc sliding rail 32B, one end of the second decorative door panel 5B far away from the rotating shaft base 1 moves along the second gap g2. In this way, a certain overlap is provided between the second decorative door panel 5B and the second back cover 1021, so that the internal structure of the rotation shaft mechanism 103 can be prevented from being exposed, which is beneficial to ensuring the consistency of the appearance.

In some embodiments, referring to fig. 14a, in the unfolded state of the hinge mechanism 103, the second decorative door panel 5B is inclined toward the second connector 3B from the end toward the hinge base 1 to the end away from the hinge base 1. Thus, the back surface of the rotating shaft base 1 is approximately flush with the second back cover 1021, and the flatness of the whole machine in the unfolded state can be increased. Moreover, in the case where the second circular arc slide rail 32B arches toward the second surface S2, when the rotation shaft mechanism 103 rotates from the unfolded state to the folded state, the second sliding portion 42B slides from the third circular arc slide rail section 321B toward the fourth circular arc slide rail section 322B, driving the end of the second decorative door panel 5B away from the rotation shaft base 1 to swing toward the second back cover portion 1021a with respect to the end of the second decorative door panel 5B toward the rotation shaft base 1, so as to avoid interference with the second connecting piece 3B during movement of the second decorative door panel 5B between the unfolded state and the folded state, thereby ensuring structural strength of the second connecting piece 3B, and being beneficial to thinning of the whole machine.

In any of the above embodiments, the first decorative door panel 5A and the first sliding swing arm 4A, and the second decorative door panel 5B and the second sliding swing arm 4B may be fixedly connected by means of welding, clamping, bonding, or threaded connection.

In some embodiments, referring back to fig. 5f and 5g, the first sliding swing arm 4A is provided with a via hole, and the first decorative door panel 5A is provided with a threaded hole 51A (as in fig. 5 g). The spindle mechanism 103 further includes a threaded fastener 6, alternatively, the threaded fastener 6 may be a screw. The threaded fastener 6 includes a head portion and a shank portion, the head portion of the threaded fastener 6 is located on the front side of the first sliding swing arm 4A, a part of the shank portion of the threaded fastener 6 is accommodated in the through hole, and the other part is screwed into the threaded hole 51A. The first decorative door panel 5A and the first sliding swing arm 4A are fixed together by the aid of the threaded fastener 6, and the connecting mode is convenient to operate, has better connecting stability and is convenient to detach and maintain.

In some embodiments, referring to fig. 5g with emphasis, the front end surface of the first sliding swing arm 4A is provided with a countersink 43A, the via hole is disposed on the bottom surface of the countersink 43A, and the head of the threaded fastener 6 is accommodated in the countersink 43A. Thereby, the height of the head of the threaded fastener 6 protruding from the surface of the first sliding swing arm 4A can be reduced, which is advantageous for the thinning of the whole machine.

In some embodiments, referring to fig. 5g in combination, the first decorative door panel 5A includes a door panel body 52A and a boss 53A. The boss 53A is provided on a surface of the door panel main body 52A facing the first slide swing arm 4A. The screw hole 51A is provided at least on the boss 53A. Thus, the thickness of the door panel main body 52A can be reduced, which is advantageous for the thickness reduction of the whole machine, and the connection strength of the threaded fastener 6 in the threaded hole 51A can be also considered.

In some embodiments, referring to fig. 5f, a receiving groove 44A is formed on a surface of the first sliding swing arm 4A facing the door panel body 52A, and the boss 53A is received in the receiving groove 44A, so that thickness superposition is avoided, and the thickness of the whole machine is reduced.

The second decorative door panel 5B and the second sliding swing arm 4B may also be connected by a threaded fastener, and the connection manner between the second decorative door panel 5B and the second sliding swing arm 4B by the threaded fastener may be implemented by referring to the connection manner between the first decorative door panel 5A and the first sliding swing arm 4A by the threaded fastener 6, which is not described herein in detail.

In the process of rotating the spindle mechanism 103, the first connecting member 3A and the second connecting member 3B may rotate synchronously with respect to the spindle base 1, or may rotate synchronously with respect to the spindle base 1. The present application is exemplified by the synchronous rotation of the first link 3A and the second link 3B with respect to the spindle base 1, which is not to be construed as a particular limitation of the constitution of the present application.

In some embodiments, referring to fig. 5f and 5g, the spindle mechanism 103 may include at least one synchronization component 7, and as an example, the number of synchronization components 7 may be two. The synchronizing assembly 7 is used for driving the first connecting piece 3A and the second connecting piece 3B to synchronously rotate relative to the spindle base 1.

The specific structure of the synchronizing assembly 7 is not limited. In some embodiments, referring to fig. 5f and 5g, the synchronization assembly 7 may include a first synchronization swing arm 7A and a second synchronization swing arm 7B, where one end of the first synchronization swing arm 7A is rotatably connected to the spindle base 1, and the other end is slidably connected to the first connecting member 3A. One end of the second synchronous swing arm 7B is rotatably connected to the rotating shaft base 1, and the other end is slidably connected to the second connecting piece 3B. Wherein the one end of the first synchronization swing arm 7A and the one end of the second synchronization swing arm 7B can synchronously and reversely rotate. Each synchronous swing arm can carry out reverse synchronous rotation for can carry out synchronous rotation between each connecting piece of pivot mechanism 103, promote user's use experience.

In some embodiments, referring to fig. 5f and 5g, the one end of the first synchronization swing arm 7A is provided with a first gear tooth 71A, the one end of the second synchronization swing arm 7B is provided with a second gear tooth 71B, the first gear tooth 71A is directly meshed with the second gear tooth 71B, or an even number of intermediate gears are arranged between the first gear tooth 71A and the second gear tooth 71B, and the first gear tooth 71A, the even number of intermediate gears and the second gear tooth 71B are sequentially meshed. Therefore, the synchronous rotation among the connecting pieces is realized in a gear transmission mode, and the structure is simple and easy to realize. In other embodiments, the above-mentioned one end of the first synchronization swing arm 7A and the above-mentioned one end of the second synchronization swing arm 7B may also use a screw driving assembly and a sliding block to realize the synchronous rotation between the connectors, which is not particularly limited in the present application.

In some embodiments, referring to fig. 5f and 5g, the other end of the first swing arm 7A is provided with a third sliding portion 72A. Alternatively, the number of the third sliding portions 72A may be two, and the two third sliding portions 72A may be provided at both ends of the other end of the first synchronization swing arm 7A aligned in the Y-axis direction, respectively. The first connecting member 3A is provided with a first accommodating groove 33A, and two inner wall surfaces of the first accommodating groove 33A arranged along the Y-axis direction are respectively provided with a first chute 34A, and the first chute 34A may be a circular arc chute or a linear chute. The other end of the first synchronization swing arm 7A is slidably received in the first receiving groove 33A, and the two third sliding portions 72A are slidably received in the two first sliding grooves 34A, respectively, thereby realizing slidable connection of the other end of the first synchronization swing arm 7A with the first connecting member 3A. The structure is simple and the implementation is convenient.

The slidable connection between the other end of the second synchronization swing arm 7B and the second connector 3B may be implemented by referring to the slidable connection between the other end of the first synchronization swing arm 7A and the first connector 3A, which is not described herein.

With the development of technology, when the user operates the folding screen device 100 to rotate the spindle mechanism 103, a force feedback is needed to generate a damping hand feeling, so as to enhance the use experience of the user. At the same time, the folding screen apparatus 100 needs to have the ability to remain in one or more stable states to enhance the smoothness and reliability of the folding screen apparatus 100 when in use. Wherein the steady state may be an unfolded state, a folded state, or at least one semi-folded state.

To achieve the above objective, referring to fig. 5f and 5g, the spindle mechanism 103 further includes a damping assembly 8. Alternatively, the damping assembly 8 may include an off-axis damping structure 81 and an on-axis damping structure 82.

The off-axis damping structure 81 may include at least one first off-axis damping structure 81A and at least one second off-axis damping structure 81B. The first external shaft damping structure 81A is disposed on the first connecting member 3A, and the second external shaft damping structure 81B is disposed on the second connecting member 3B. The in-shaft damping structure 82 may include at least one first in-shaft damping structure 82A and at least one second in-shaft damping structure 82B.

Referring to fig. 15 in combination with fig. 5f, fig. 15 is an exploded view of a part of the structure of the spindle mechanism 103 shown in fig. 5f, and at least one end of the first sliding portion 42A along the Y-axis direction forms a cam portion. Alternatively, both ends of the first sliding portion 42A in the Y-axis direction form cam portions.

The number of the first off-axis damping structures 81A corresponding to the first sliding portion 42A may be one or two. The present embodiment and the following embodiments are exemplified with the number of the first off-axis damping structures 81A corresponding to the first sliding portion 42A as two, and this should not be construed as a particular limitation to the constitution of the present application.

The above-described two first off-axis damping structures 81A are respectively engaged with the two cam portions of the first sliding portion 42A to generate damping forces.

Referring to fig. 15 with emphasis, the first off-axis damping structure 81A may include a first slider 811A, a first contact 812A, and at least one first resilient member 813A.

The first slider 811A is slidably connected to the first link 3A in the Y-axis direction. In some embodiments, referring to fig. 15, the first connecting member 3A is provided with a first guiding groove 35A extending along the Y-axis direction, and the first sliding member 811A is slidably received in the first guiding groove 35A. The first guide chute 35A is provided with a cover 36A, and the cover 36A covers the opening of the first guide chute 35A and is fixed to the first connector 3A. The cover 36A can stop the first slider 811A, preventing the first slider 811A from falling out.

The first contact piece 812A is configured to contact the cam portion, the first contact piece 812A is connected to the first slider 811A, and optionally, the first contact piece 812A is rotatably connected to the first slider 811A. Thus, the first contact 812A is a rolling member, and the shape of the first contact 812A includes, but is not limited to, a roller shape, etc., and the present application is exemplified with the shape of the first contact 812A as a roller shape. Rolling contact may reduce frictional losses between the first contact 812A and the cam portion. In other embodiments, the first contact 812A may be fixedly connected, slidably connected, or rotatably and slidably connected to the first slider 811A, which is not particularly limited in the present application.

The first elastic member 813A is provided at a side of the first slider 811A opposite to the cam portion, and the first elastic member 813A is for applying an elastic force directed toward the cam portion to the first slider 811A so that the first contact piece 812A contacts the cam portion. The number of the first elastic members 813A may be one or more. The number of the first elastic members 813A is three, for example. The first elastic member 813A may be a cylindrical coil spring, a disc spring, a coil spring, rubber, silicone, or the like, and the present application is exemplified by the first elastic member 813A as a cylindrical coil spring, which is not to be construed as a particular limitation of the constitution of the present application.

When the rotation shaft mechanism 103 is switched between the unfolded state and the folded state, the first contact piece 812A rolls along the cam portion including at least one convex portion and at least one concave portion, and the cam portion includes one convex portion and two concave portions respectively located on opposite sides of the convex portion, for example. Under the action of the first elastic member 813A, the first contact piece 812A is easily moved from the convex portion to the concave portion, and is not easily moved from the concave portion to the convex portion, so that the first contact piece 812A can be stably held in at least one concave portion, thereby holding the rotation shaft mechanism 103 in one or more stable states.

In some embodiments, the first off-axis damping structure 81A may further include at least one first guide rod 814A and a first bypass member 815A. The number of the first guide bars 814A may be the same as that of the first elastic members 813A and correspond one to one. Of course, in other embodiments, the number of the first guide rods 814A may be different from the number of the first elastic members 813A, and the plurality of first guide rods 814A corresponds to one first elastic member 813A. Each first guide rod 814A is disposed through the corresponding first elastic member 813A, and one end of the first guide rod 814A is fixed to the first sliding member 811A, and the other end is slidably disposed through the first avoiding member 815A. The first bypass member 815A is positioned on a side of the at least one first resilient member 813A opposite the first slider member 811A and the first bypass member 815A is received and secured within the first guide channel 35A. The first bypass member 815A has a slide hole formed therein, an axial direction of the slide hole is parallel to a slidable direction of the first slider 811A with respect to the first link 3A, and the other end of the first guide rod 814A is accommodated in the slide hole. The other end of the first guide rod 814A is slidable in the slide hole when the first contact piece 812A rolls along the cam portion. The structure is simple, and the first elastic piece 813A can be prevented from being misplaced in the compression process, so that the stability and the reliability are high.

In other embodiments, the first off-axis damping structure 81A may not include the at least one first guide rod 814A and the first bypass member 815A.

It should be noted that the second external shaft damping structure 81B may have the same structural form as the first external shaft damping structure 81A, and the specific structure of the second external shaft damping structure 81B is not described in detail in the present application.

With continued reference to fig. 15, and with combined reference to fig. 5f, the number of the first in-shaft damping structures 82A and the second in-shaft damping structures 82B may be one or more. In the present embodiment, the number of the first in-shaft damping structures 82A and the second in-shaft damping structures 82B is one.

Referring to fig. 15 and 16 in combination, fig. 16 is an exploded view of the first and second in-shaft damping structures 82A and 82B in the spindle mechanism 103 shown in fig. 15. The first in-shaft damping structure 82A may include a first damping swing arm 821A, at least one first cam 822A, at least one second cam 823A, and at least one second elastic member 824A.

One end of the first damping swing arm 821A is rotatably connected to the rotation shaft base 1, and the other end is slidably connected to the first connecting member 3A. In some embodiments, the first in-shaft damping structure 82A may further include a shaft 826A and a sleeve 827A, and the shaft 826A may be rotatably connected to the shaft base 1 about a central axis of the shaft 826A. The shaft sleeve 827A is disposed at the one end of the first damping swing arm 821A, and the shaft sleeve 827A is sleeved on the rotating shaft 826A and is not rotatable relative to the rotating shaft 826A. For example, the shaft 826A may be a flat shaft, the shaft sleeve 827A is provided with a flat hole, and the shaft sleeve 827A is sleeved on the shaft 826A by means of the flat hole, so as to prevent the shaft sleeve 827A from rotating relative to the shaft 826A. Thereby, the rotatable connection between the one end of the first damping swing arm 821A and the rotating shaft base 1 is realized, and the structure is simple, and the connection stability is better.

In some embodiments, the other end of the first damping swing arm 821A may be provided with a fourth sliding portion 828A. Alternatively, referring to fig. 16 with emphasis, the first damping swing arm 821A may include a first extension 8211A, a second extension 8212A, and a third extension 8213A. The first extension portion 8211A extends in the Y-axis direction, and the second extension portion 8212A and the third extension portion 8213A extend from both ends of the first extension portion 8211A toward the first connection portion 3A, respectively. Based on this, the fourth sliding portion 828A may include two first sliding units 8281A and two second sliding units 8282A. The two first sliding units 8281A are respectively disposed at an end of the second extension portion 8212A opposite to the third extension portion 8213A and an end of the third extension portion 8213A opposite to the second extension portion 8212A. The two second sliding units 8282A are respectively disposed at an end of the second extension portion 8212A facing the third extension portion 8213A and an end of the third extension portion 8213A facing the second extension portion 8212A.

Referring to fig. 15, the first connecting member 3A is provided with a second accommodating groove 37A, at least one inner wall surface of the second accommodating groove 37A is provided with a second sliding groove 38A, and the second sliding groove 38A may be a circular arc sliding groove or a linear sliding groove. The other end of the first damping swing arm 821A is slidably received in the second slide groove 38A, and the fourth sliding portions 828A are slidably received in the second slide groove 38A, respectively, thereby realizing slidable connection of the other end of the first damping swing arm 821A with the first connecting member 3A. The structure is simple and the implementation is convenient.

Alternatively, referring to fig. 15, the second receiving groove 37A may include a first receiving groove unit 371A and a second receiving groove unit 372A. The second chute 38A includes two first chute units 381A and two second chute units 382A. The first chute unit 381A and the second chute unit 382A may be circular arc-shaped chutes or straight-line-shaped chutes. The two first chute units 381A are respectively disposed on an inner wall surface facing the second receiving groove unit 372A in the first receiving groove unit 371A and an inner wall surface facing the first receiving groove unit 371A in the second receiving groove unit 372A. The two second chute units 382A are respectively disposed on an inner wall surface of the first accommodating groove unit 371A facing away from the second accommodating groove unit 372A, and an inner wall surface of the second accommodating groove unit 372A facing away from the first accommodating groove unit 371A. One end of the second extension portion 8212A facing away from the first extension portion 8211A and one end of the third extension portion 8213A facing away from the first extension portion 8211A form the aforementioned other end of the first damping swing arm 821A. One end of the second extension portion 8212A facing away from the first extension portion 8211A is slidably received in the first receiving groove unit 371A, and one end of the third extension portion 8213A facing away from the first extension portion 8211A is slidably received in the second receiving groove unit 372A. The two first sliding units 8281A are slidably received in the two first sliding groove units 381A, respectively, and the two second sliding units 8282A are slidably received in the two second sliding groove units 382A, respectively. In this way, the force stability of the first damping swing arm 821A in the Y-axis direction can be improved.

A low-side mating of the first sliding unit 8281A and the first chute unit 381A with surface-to-surface contact may be adopted to realize smooth sliding, and a high-side mating of the second sliding unit 8282A and the second chute unit 382A with line-to-surface contact may be adopted to prevent jamming. In contrast, a high-side fit may be adopted between the first sliding unit 8281A and the first chute unit 381A, and a low-side fit may be adopted between the second sliding unit 8282A and the second chute unit 382A, which is not particularly limited in the present application.

Referring to fig. 16, a first cam 822A may be disposed at the one end of the first damping swing arm 821A. The number of the first cams 822A may be one or a plurality. In some embodiments, the number of first cams 822A is two, and the two first cams 822A are respectively disposed on two opposite sides of the sleeve 827A aligned along the Y-axis direction. Alternatively, the first cam 822A may be fixedly connected to the shaft sleeve 827A, and, for example, the first cam 822A may be integrally formed with the shaft sleeve 827A, and in other examples, the first cam 822A may be separately formed from the shaft sleeve 827A and fixedly connected thereto by welding, bonding, screwing, or clamping, which is not specifically limited herein. The first cam 822A has a first cam surface 8221A extending around the first damping swing arm 821A with respect to the rotation axis of the spindle base 1.

The second cam 823A is provided on a side facing the first cam surface, and the second cam 823A has a second cam surface facing the first cam surface.

Alternatively, the number of the second cams 823A is also two, the two second cams 823A are respectively disposed on the sides facing the first cam surfaces of the two first cams 822A, and the second cam surfaces of the two second cams 823A are respectively facing the first cam surfaces of the two first cams 822A.

In some embodiments, referring to fig. 16, the second cam 823A is slidably sleeved on the rotating shaft 826A, so as to perform a limiting guiding function on the second cam 823A and prevent the second cam 823A from being dislocated. In some embodiments, the second cam 823A may rotate relative to the spindle 826A but may not rotate relative to the spindle base 1. Thus, during rotation of the first cam 822A with the rotation shaft 826A, the first cam 822A may be driven to rotate relative to the second cam 823A.

The second elastic member 824A is disposed on a side of the second cam 823A facing away from the first cam 822A, and the second elastic member 824A is configured to apply an elastic force directed toward the first cam 822A to the second cam 823A so as to bring the second cam surface 8231A into contact with the first cam surface 8221A.

Optionally, the number of the second elastic members 824A is two, and the two second elastic members 824A are respectively located on a side of the two second cams 823A opposite to the corresponding first cams 822A, so as to respectively apply elastic forces directed to the corresponding first cams 822A to the two second cams 823A.

The second elastic member 824A may be a cylindrical coil spring, a disc spring, a tower spring, rubber, silica gel, etc., and the present application is exemplified by the second elastic member 824A as a cylindrical coil spring, which should not be construed as a specific limitation of the constitution of the present application.

The second elastic member 824A is sleeved outside the rotating shaft 826A, so as to guide the second elastic member 824A by means of the rotating shaft 826A, and prevent the second elastic member 824A from being dislocated during the compression process.

The second cam surface rotates relative to the first cam surface when the rotation shaft mechanism 103 is switched between the extended state and the collapsed state, the first cam surface includes at least one convex portion and at least one concave portion, the second cam surface includes at least one convex portion and at least one concave portion, and when the convex portion of the first cam surface is engaged with the concave portion of the second cam surface, the first damping swing arm 821A can be kept stable when the concave portion of the first cam surface is engaged with the convex portion of the second cam surface, so that the rotation shaft mechanism 103 can be kept in one or more stable states.

In some embodiments, referring to FIG. 16, the first in-shaft damping structure 82A further includes at least one friction assembly 825A. The friction assembly 825A is disposed on a side of the second resilient member 824A opposite the corresponding second cam 823A. In some embodiments, the number of friction assemblies 825A is plural, and by way of example, the number of friction assemblies 825A is two, and two friction assemblies 825A are respectively disposed on the sides of the two second elastic members 824A facing away from the corresponding second cams 823A.

Referring to fig. 16, each friction assembly 825A includes at least one rotating friction member 8251A and at least one stationary friction member 8252A. The at least one rotating friction member 8251A and the at least one fixed friction member 8252A are slidably sleeved outside the rotating shaft 826A, and are sequentially and alternately arranged along the length direction of the rotating shaft 826A. The rotation friction member 8251A is not rotatable with respect to the rotation shaft 826A, but is rotatable with respect to the rotation shaft base 1 along with the rotation shaft 826A. Optionally, the rotating friction member 8251A is provided with a flat hole, and the rotating friction member 8251A is sleeved on the rotating shaft 826A by means of the flat hole, so that the rotating friction member 8251A can be prevented from rotating relative to the rotating shaft 826A. The fixed friction member 8252A may rotate relative to the rotation shaft 826A, but may not rotate relative to the rotation shaft base 1. Optionally, the fixed friction member 8252A is provided with a circular hole, and the fixed friction member 8252A is sleeved on the rotating shaft 826A by means of the circular hole, so that the fixed friction member 8252A can rotate relative to the rotating shaft 826A. In this way, when the first damping swing arm 821A rotates between the unfolded state and the folded state, the rotating friction member 8251A and the fixed friction member 8252A rotate relatively to generate a friction damping force, so that the whole machine can be kept at any unfolded angle position.

In some embodiments, referring still to fig. 16, the first in-shaft damping structure 82A further includes at least one stop 829A, and the stop 829A may be a snap spring, or the stop 829A may be a shoulder, a dowel pin, or the like, in other examples. For example, the number of the stoppers 829A is two, the two stoppers 829A are respectively disposed on the sides of the two friction assemblies opposite to the corresponding second elastic members 824A, and the stoppers 829A are disposed on the rotation shaft 826A and are not slidable along the rotation shaft 826A. In this way, the friction member 825A, the second elastic member 824A, and the sleeve 827A are prevented from being separated from one end of the rotation shaft 826A by the stopper 829A.

The structure of the second axial damping structure 82B may be the same as the structure of the first axial damping structure 82A, which is not described in detail in this embodiment. And the fixed friction member in the second axial damping structure 82B may be integrally connected with the fixed friction member 8252A in the first axial damping structure 82A to prevent the fixed friction member 8252A from rotating relative to the spindle base 1. The structure is simple and easy to realize.

The first in-shaft damping structure 82A and the second in-shaft damping structure 82B may not be limited to the structure shown in fig. 16. In other embodiments, referring to fig. 17a and 17B, fig. 17a is a top view of a spindle mechanism 103 according to still other embodiments of the present application, and fig. 17B is an exploded schematic view of a first in-spindle damping structure 82A and a second in-spindle damping structure 82B in the spindle mechanism 103 shown in fig. 17 a. In the rotary shaft mechanism 103 according to the present embodiment, the first in-shaft damping structure 82A is different from the first in-shaft damping structure 82A in the rotary shaft mechanism 103 shown in fig. 16 in that in the present embodiment, the number of the shaft sleeves 827A is two, and the two shaft sleeves 827A are respectively a first shaft sleeve 8271A and a second shaft sleeve 8272A, and the first shaft sleeve 8271A and the second shaft sleeve 8272A are arranged at intervals along the Y-axis direction. The number of the first cams 822A is one, the first cams 822A are disposed at a side of the first shaft housing 8271A facing the second shaft housing 8272A, and the first cams 822A may be integrally formed with the first shaft housing 8271A. The second cam 823A, the second resilient member 824A, and the friction assembly 825A are located between the first sleeve 8271A and the second sleeve 8272A. The first in-shaft damping structure 82A further includes a spacer 830A, the spacer 830A being disposed between the friction assembly 825A and the second shaft sleeve 8272A to prevent relative rotation between the friction assembly 825A and the second shaft sleeve 8272A from wearing the second shaft sleeve 8272A. The structure is simple and convenient to assemble.

The off-axis damping structure occupies the space on the connecting piece, and the in-axis damping structure occupies the space of the rotating shaft base. The rotating shaft mechanism 103 provided by the application is provided with the external damping structure and the internal damping structure, so that the damping force can be ensured, meanwhile, the structural strength of the rotating shaft base and the connecting piece can be ensured, and the phenomenon that one of the rotating shaft base and the connecting piece is too low in structural strength due to too many accommodated damping structures is prevented.

In other embodiments, the second supporting member 2B, the second connecting member 3B, the second sliding swing arm 4B, the second decorative door panel 5B, the synchronization assembly 7, the second external damping structure 81B and the second internal damping structure 82B may be omitted from the rotating shaft mechanism 103, and the second housing 102 may be directly connected to the rotating shaft base 1.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present application.

Claims

1. A hinge mechanism for a folding screen device, comprising:

Rotating shaft base;

a first support member, the first support member being rotatably connected to the rotating shaft base;

a first connecting member rotatably connected to the first supporting member, the first connecting member being provided with one of a first arc-shaped sliding rail and a first sliding portion;

A first sliding swing arm is rotatably connected to the rotating shaft base, and the first sliding swing arm is provided with the other of the first arc-shaped slide rail and the first sliding part, and the first sliding part is slidably connected to the first arc-shaped slide rail.

2 . The rotating shaft mechanism according to claim 1 , wherein the first arc-shaped slide rail is a slide groove type slide rail, and the first sliding portion is slidably accommodated in the first arc-shaped slide rail.

3. The hinge mechanism according to claim 2, wherein a surface of the first connecting member facing the folding screen in the folding screen device is a first surface; the first arc-shaped slide rail is provided on the first connecting member; and the first arc-shaped slide rail includes a first arc-shaped slide rail segment and a second arc-shaped slide rail segment;

The first arc-shaped slide rail section has a first end and a second end in its length direction, the second end being located on a side of the first end away from the shaft base; the second arc-shaped slide rail section has a third end and a fourth end in its length direction, the third end being connected to the second end, and the fourth end being located on a side of the third end away from the first end;

From the first end to the second end, the distance from the first circular arc slide rail section to the first surface gradually decreases, and from the third end to the fourth end, the distance from the second circular arc slide rail section to the first surface gradually increases; or, from the first end to the second end, the distance from the first circular arc slide rail section to the first surface gradually increases, and from the third end to the fourth end, the distance from the second circular arc slide rail section to the first surface gradually decreases.

4 . The hinge mechanism according to claim 3 , wherein when the hinge mechanism rotates from an unfolded state to a folded state, the first sliding portion slides from the first arc-shaped slide rail segment to the second arc-shaped slide rail segment.

5. The hinge mechanism according to any one of claims 1-4 is characterized in that the hinge mechanism also includes a first decorative door panel, which is arranged on the side of the first connecting member facing away from the folding screen in the folding screen device, and the first decorative door panel is fixedly connected to the first sliding swing arm.

6. The hinge mechanism according to claim 5, wherein the first connecting member is provided with a through hole, and the first decorative door panel is provided with a threaded hole;

The rotating shaft mechanism also includes:

A threaded fastener, wherein the head of the threaded fastener is arranged on the side of the first connecting member facing away from the first decorative door panel, a portion of the rod of the threaded fastener is accommodated in the through hole, and the other portion of the rod of the threaded fastener is threadedly connected to the threaded hole.

7. The rotating shaft mechanism according to any one of claims 1 to 6, wherein the first sliding portion is provided on the first sliding swing arm, and a cam portion is formed on at least one end of the first sliding portion along the length direction of the rotating shaft base;

The rotating shaft mechanism also includes:

A first off-axis damping structure, the first off-axis damping structure includes a first sliding member, a first contact member and at least one first elastic member, the first sliding member is slidably connected to the first connecting member along the length direction of the rotating shaft base, the first contact member is connected to the first sliding member, the first elastic member is arranged on the side of the first sliding member facing away from the cam portion, and the first elastic member is used to apply an elastic force directed to the cam portion to the first sliding member so that the first contact member contacts the cam portion.

8. The rotating shaft mechanism according to claim 7, wherein the first off-axis damping structure further comprises a first guide rod and a first avoidance member;

The first guide rod is passed through the first elastic member, and one end of the first guide rod is fixed to the first sliding member. The first avoidance member is located on the side of the first elastic member facing away from the first sliding member, and a sliding hole is provided in the first avoidance member. The axial direction of the sliding hole is parallel to the sliding direction of the first sliding member relative to the first connecting member, and the other end of the first guide rod can be slidably accommodated in the sliding hole.

9. The rotating shaft mechanism according to any one of claims 1 to 8, characterized in that the rotating shaft mechanism further comprises:

a first in-shaft damping structure, comprising a first damping swing arm, a first cam, a second cam, and a second elastic member; one end of the first damping swing arm is rotatably connected to the rotating shaft base, and the other end is slidably connected to the first connecting member; the first cam is disposed at the one end of the first damping swing arm, and the first cam has a first cam surface, which extends around the rotation axis of the first damping swing arm relative to the rotating shaft base;

The second cam is arranged on the side facing the first cam surface, and the second cam has a second cam surface, and the second cam surface faces the first cam surface;

The second elastic member is provided on a side of the second cam facing away from the first cam, and the second elastic member is used to apply an elastic force directed toward the first cam to the second cam, so that the second cam surface contacts the first cam surface;

When the first damping swing arm rotates relative to the rotating shaft base, the first cam surface and the second cam surface rotate relative to each other.

10. The rotating shaft mechanism according to any one of claims 1 to 9, further comprising:

A synchronization component, the synchronization component includes a first synchronization swing arm and a second synchronization swing arm, one end of the first synchronization swing arm can be rotatably connected to the rotating shaft base, and the other end can be slidably connected to the first connecting member; one end of the second synchronization swing arm can be rotatably connected to the rotating shaft base, and the other end can be slidably connected to the second connecting member, the one end of the first synchronization swing arm and the one end of the second synchronization swing arm can rotate synchronously and in opposite directions.

11. The rotating shaft mechanism according to any one of claims 1 to 10, wherein the first support member is an integrally formed structure.

12 . The rotating shaft mechanism according to claim 11 , wherein the material of the first supporting member is amorphous.

13 . The rotating shaft mechanism according to claim 12 , wherein the material of the first supporting member is zirconium-based liquid metal.

14. The rotating shaft mechanism according to any one of claims 1 to 13, further comprising:

A shielding member covers and is fixed to the surface of the hinge base facing the folding screen in the folding screen device.

15 . The rotating shaft mechanism according to claim 14 , wherein the shielding member is in a sheet shape, and a thickness of the shielding member is greater than or equal to 0.03 mm and less than or equal to 0.05 mm.

16. A foldable screen device, comprising:

Folding screen;

a first shell;

The hinge mechanism according to any one of claims 1 to 15, wherein the first connecting member of the hinge mechanism is connected to the first shell, a portion of the folding screen is arranged on the first shell, and another portion is arranged on the hinge base, the first support member and the first connecting member of the hinge mechanism.

17. The folding screen device according to claim 16, wherein the hinge mechanism further comprises a first decorative door panel, the first decorative door panel being disposed on a side of the first connecting member facing away from the folding screen inside the folding screen device, and the first decorative door panel being fixedly connected to the first sliding swing arm;

The first shell includes a first back cover, the first back cover includes a first back cover part, the first back cover part is located on the side of the first connecting member facing away from the folding screen, and there is a first gap between the first back cover part and the first connecting member, and the end of the first decorative door panel away from the rotating shaft base is accommodated in the first gap.

18. The folding screen device according to claim 17 is characterized in that, when the hinge mechanism is in the unfolded state, the first decorative door panel is inclined toward the first connecting member from an end facing the hinge base to an end away from the hinge base.