CN114251349B

CN114251349B - Folding device and folding display equipment with flexible screen

Info

Publication number: CN114251349B
Application number: CN202011023945.7A
Authority: CN
Inventors: 周子航; 汤海舰; 周虎
Original assignee: BYD Co Ltd; Shanwei BYD Electronics Co Ltd
Current assignee: BYD Co Ltd; Shanwei BYD Electronics Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2023-05-05
Anticipated expiration: 2040-09-25
Also published as: CN114251349A

Abstract

The invention is suitable for the field of folding display equipment, and discloses a folding device and folding display equipment with a flexible screen, wherein the folding device comprises a first supporting plate, a second supporting plate, a synchronous rotating mechanism, a supporting component and a middle shell, wherein the synchronous rotating mechanism is arranged on the middle shell and is used for driving the first supporting plate and the second supporting plate to synchronously rotate relative to the middle shell so as to realize folding or unfolding; in the process of switching the unfolding state to the folding state, the first supporting plate and the second supporting plate drive the supporting assembly to move away from the first supporting plate and the second supporting plate to provide the avoiding space. The folding mode is used for meeting the use requirements of a user on the large-screen display of the display equipment and is convenient to carry.

Description

Folding device and folding display equipment with flexible screen

Technical Field

The invention belongs to the field of folding display equipment, and particularly relates to a folding device and folding display equipment with a flexible screen.

Background

With the continuous development of portable electronic devices, display screens of mobile terminals such as mobile phones and tablet computers become larger and larger, and although large-screen display can simultaneously display more contents for users, the large-screen devices have the problems of large volume, large occupied space, inconvenient carrying and the like, so that the development of the large-screen portable electronic devices is restricted, and the folding-screen electronic products are generated for simultaneously considering the portability of each electronic device and the dual attribute of the large screen. However, in the use process of the folding screen electronic product, folds are easy to appear on the screen, so that the use experience of consumers can be affected.

Disclosure of Invention

The invention aims to at least solve one of the technical problems, and provides a folding device and folding display equipment with a flexible screen, which can generate larger area difference in a folding and unfolding mode, meet the use requirements of users on large-screen display and portability of the display equipment, and bring good use experience to the users.

The technical scheme of the invention is as follows: the folding device comprises a first supporting plate, a second supporting plate, a synchronous rotating mechanism, a supporting component and an intermediate shell, wherein the synchronous rotating mechanism is installed in the intermediate shell and is used for driving the first supporting plate and the second supporting plate to synchronously rotate relative to the intermediate shell so as to realize folding or unfolding, the supporting component is arranged between the first supporting plate and the second supporting plate, and in the process of switching a folding state into an unfolding state, the first supporting plate and the second supporting plate drive the supporting component to move close to the first supporting plate and the second supporting plate, so that the supporting component is supported between the first supporting plate and the second supporting plate; and in the process of switching the unfolding state into the folding state, the first supporting plate and the second supporting plate drive the supporting component to move away from the first supporting plate and the second supporting plate to provide an avoidance space.

Optionally, the support assembly includes a first support assembly and a second support assembly, the first support assembly includes a first sliding support plate and a first movement assembly, the second support assembly includes a second sliding support plate and a second movement assembly, the first sliding support plate and the second sliding support plate are arranged along a first direction interval of the middle shell, the first movement assembly is used for driving the first sliding support plate to rotate along with the first support plate to be close to or far away from the first support plate and the second support plate, and the second movement assembly is used for driving the second sliding support plate to rotate along with the second support plate to be close to or far away from the first support plate and the second support plate, wherein the first direction of the middle shell is located on a horizontal plane.

Optionally, the first motion assembly includes a first driving connecting rod, a first bearing part and a first installation block, one end of the first sliding supporting plate facing the second sliding supporting plate is connected with the first bearing part, the first driving connecting rod is located between the first sliding supporting plate and the second sliding supporting plate, the first driving connecting rod is close to the first bearing part, one end of the first driving connecting rod is connected with the first supporting plate, the other end of the first driving connecting rod is connected with a first branch end, the first branch end is provided with a first sliding groove, the first bearing part is connected with a first sliding piece, the first sliding piece is connected with the first sliding groove in a sliding way, the first sliding piece can rotate relative to the first sliding groove, the first installation block is installed in the middle shell, the first installation block is provided with a first inclined sliding groove which inclines relative to the second direction of the middle shell, the first bearing part is also connected with a first inclined sliding piece, the first inclined sliding piece is connected with the first supporting plate in a sliding way, and the first sliding piece is driven by the first sliding piece and the first sliding piece along with the first sliding supporting plate in a sliding way, and the first sliding piece is driven by the first sliding piece to move along with the first sliding groove;

The second motion assembly comprises a second driving connecting rod, a second bearing part and a second installation block, wherein the second sliding supporting plate faces one end of the first sliding supporting plate and is connected with the second bearing part, the second driving connecting rod is located between the first sliding supporting plate and the second sliding supporting plate, the second driving connecting rod is close to the second bearing part, one end of the second driving connecting rod is connected with the second supporting plate, the other end of the second driving connecting rod is connected with a second branch end, the second branch end is provided with a second sliding groove, the second bearing part is connected with a second sliding piece, the second sliding piece is connected with the second sliding groove in a sliding mode, the second sliding piece can rotate relative to the second sliding groove, the second installation block is installed in the middle shell, the second installation block is provided with a second inclined sliding groove which inclines relative to the second direction of the middle shell, the second bearing part is also connected with a second inclined sliding piece, the second inclined sliding piece is connected with the second inclined sliding piece in a sliding mode, the second supporting plate is driven by the second sliding piece and moves along with the second sliding piece in a sliding mode, and the second sliding piece is matched with the second sliding supporting plate in a horizontal plane.

Optionally, a first arc section is formed in the middle of the first driving connecting rod towards the middle shell in a recessed mode, and a second arc section is formed in the middle of the second driving connecting rod towards the middle shell in a recessed mode.

Optionally, one end of the first sliding support plate far away from the second sliding support plate is connected with a first installation part, the first installation part is provided with a first guide groove, the middle shell is provided with a first guide rod, the first guide rod is parallel to the first inclined chute, and the first guide groove is connected with the first guide rod in a sliding way;

the second sliding support plate is connected with a second installation part at one end far away from the first sliding support plate, the second installation part is provided with a second guide groove, the middle shell is provided with a second guide rod, the second guide rod is parallel to the second inclined chute, and the second guide groove is connected with the second guide rod in a sliding mode.

Optionally, the synchronous rotating mechanism includes a rotating assembly and a synchronizing assembly, the synchronizing assembly is disposed between the first support plate and the second support plate, the synchronizing assembly is used for controlling the first support plate and the second support plate to rotate synchronously, the rotating assembly is used for guiding the first support plate and the second support plate to rotate along a set track, and in the process of switching the folding state into the unfolding state, one ends of the first support plate and the second support plate, which are close to the middle shell, are close to each other; in the process of switching the unfolding state into the folding state, one end, close to the middle shell, of the first supporting plate and one end, close to the middle shell, of the second supporting plate are far away from each other.

Optionally, the rotating assembly includes first connecting piece, second connecting piece, first arc slider and second arc slider, is following at the first direction of intermediate casing, first backup pad is being close to the one end of first slip layer board is connected with first connecting piece, the second backup pad is being close to the one end of second slip layer board is connected with the second connecting piece, first connecting piece is dorsad first slip layer board's one side is connected with first arc slider, the second connecting piece is dorsad second slip layer board's one side is connected with second arc slider, intermediate casing is provided with first arc spout and second arc spout in opposite directions respectively along the relative both sides wall of first direction, first arc slider sliding connection in first arc spout, second arc slider sliding connection in second arc spout.

Optionally, the synchronization component is provided with one, two or more groups; when at least two groups of synchronous components exist, the synchronous components of at least two groups are arranged at intervals along the first direction of the middle shell.

Optionally, the synchronization assembly includes first connecting rod, second connecting rod, third connecting rod and fourth connecting rod, first connecting rod with the second connecting rod is followed the interval sets up in the first direction interval of intermediate casing, the one end of third connecting rod pass through first connecting axle respectively with first connecting rod with the second connecting rod rotates to be connected, the other end of third connecting rod with first backup pad is connected, the one end of fourth connecting rod pass through the second connecting axle respectively with first connecting rod with the second connecting rod rotates to be connected, the other end of fourth connecting rod with the second backup pad is connected, the third connecting rod with the fourth connecting rod is followed the third direction interval of intermediate casing sets up, just first connecting rod with the second connecting rod can be followed the second direction of intermediate casing slides, wherein, the third direction of intermediate casing is on the horizontal plane, just the third direction of intermediate casing is perpendicular to the first direction of intermediate casing.

Optionally, the folding device further includes a first rack, a first gear shaft, a second rack, a second gear and a second gear shaft, where the first gear is disposed between the first mounting portion and the first connecting piece, the first mounting portion is provided with a first gear shaft hole, the first connecting piece is provided with a third chute, the first gear shaft passes through the first gear, one end of the first gear shaft is rotationally connected to the first gear shaft hole, the other end of the first gear shaft is slidingly connected to the third chute, the first gear shaft can also rotate relative to the third chute, the first rack is mounted in the intermediate housing, the first rack is obliquely disposed relative to the second direction of the intermediate housing, the first gear and the first rack are in meshed connection, and through the cooperation of the first gear shaft and the third chute, the first gear rolls along the first rack when the first sliding motion;

the second gear is arranged between the second installation part and the second connecting piece, the second installation part is provided with a second gear shaft hole, the second connecting piece is provided with a fourth chute, the second gear shaft penetrates through the second gear, one end of the second gear shaft is rotationally connected with the second gear shaft hole, the other end of the second gear shaft is in sliding connection with the fourth chute, the second gear shaft can also rotate relative to the fourth chute, the second rack is arranged in the middle shell, the second rack is obliquely arranged relative to the second direction of the middle shell, the second gear is in meshed connection with the second rack, and through the cooperation of the second gear shaft and the fourth chute, and when the second sliding support plate moves, the second gear rolls along the second rack.

Optionally, the first support assembly further comprises a first flexible plate mounted to the first sliding pallet; the second support assembly further includes a second flexible plate mounted to the second slip blade.

Optionally, the first flexible board is provided with a first limiting chute, the first sliding supporting plate is provided with a first clamping block, the first clamping block is clamped in the first limiting chute, and the first clamping block can slide relative to the first limiting chute;

the second flexible board is provided with a second limiting chute, the second sliding supporting plate is provided with a second clamping block, the second clamping block is clamped in the second limiting chute, and the second clamping block can slide relative to the second limiting chute.

Optionally, the first flexible board and the second flexible board are respectively provided with an arch surface at two opposite sides along the third direction of the middle shell, and the arch surfaces are concave towards the direction deviating from the middle shell.

Optionally, the first support plate is connected with a first accommodating portion near one end of the middle shell, the second support plate is connected with a second accommodating portion near one end of the middle shell, and the first accommodating portion and the second accommodating portion are arc-shaped plates.

The invention also provides folding display equipment with the flexible screen, which comprises a first shell, a second shell, the flexible screen and the folding device, wherein a first supporting plate of the folding device is connected with the first shell, a second supporting plate of the folding device is connected with the second shell, and the first shell and the second shell are used for bearing the flexible screen.

Optionally, the first casing is being close to one side of folding device is provided with first mounting groove, first mounting groove is being provided with first supporting shoe and second supporting shoe respectively along the opposite both ends of middle casing first direction, first backup pad respectively with first supporting shoe the second supporting shoe is connected, the second casing is being close to one side of folding device is provided with the second mounting groove, the second mounting groove is being provided with third supporting shoe and fourth supporting shoe respectively along the opposite both ends of middle casing first direction, the second backup pad respectively with the third supporting shoe the fourth supporting shoe is connected, first supporting shoe with folding device's second connecting piece is adjacent, first supporting shoe is connected with the third arc slider, folding device's middle casing still is being provided with the third arc spout at the lateral wall that is provided with the second arc spout, third arc slider sliding connection in the third arc spout, the fourth supporting shoe with folding device's first connecting piece is adjacent, the fourth supporting shoe is provided with the fourth arc slider, the fourth arc slider is still provided with the fourth arc slider.

According to the folding device and the folding display equipment with the flexible screen, the supporting component moves to be close to the first supporting plate and the second supporting plate in the process of switching the first supporting plate and the second supporting plate from the folding state to the unfolding state, so that the supporting component can support and fill a gap between the first supporting plate and the second supporting plate, and in the process of switching the first supporting plate and the second supporting plate from the unfolding state to the folding state, the supporting component moves relatively to be far away from the first supporting plate and the second supporting plate to provide an avoidance space, and the supporting component is prevented from interfering the first supporting plate and the second supporting plate to rotate oppositely; when the folding device is applied to folding display equipment with the flexible screen, the support component can support the part of the flexible screen between the first shell and the second shell when the display equipment is in an unfolding state, and the flexible screen is prevented from sinking into a gap between the first support plate and the second support plate when a user touches the flexible screen; when the display device is in a folded state, the bending part of the flexible screen is contained in the space formed by the first support plate, the second support plate and the support component, so that folds of the flexible screen caused by folding can be effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a folding device according to an embodiment of the present invention;

FIG. 2 is an exploded view of a folding device according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic view of a portion of a first support assembly and a second support assembly of a folding device according to an embodiment of the present invention;

FIG. 5 is another schematic view of a first support assembly and a second support assembly of a folding device according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view at B in FIG. 4;

FIG. 7 is an enlarged schematic view at C in FIG. 4;

FIG. 8 is an enlarged schematic view at D in FIG. 5;

FIG. 9 is a schematic view of the position structures of a first transmission assembly and a second transmission assembly in a folding device according to an embodiment of the present invention;

Fig. 10 is a schematic structural view of a first support plate and a second support plate in a folding device according to an embodiment of the present invention;

FIG. 11 is a schematic view of the position structures of a first driving link and a second driving rail in a folding device according to an embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view taken at E-E of FIG. 9;

FIG. 13 is a schematic cross-sectional view taken at F-F in FIG. 9;

fig. 14 is a schematic view of a structure in which part of the components are omitted in a folded state of the folding device according to the embodiment of the present invention;

FIG. 15 is a schematic view showing a folding device in a folded state according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a synchronizing assembly in a folding device according to an embodiment of the present invention;

FIG. 17 is a schematic diagram of a synchronization assembly in a folding device according to an embodiment of the present invention;

FIG. 18 is a schematic view of the movement of a synchronizing assembly in a folding device according to an embodiment of the present invention;

fig. 19 is an expanded schematic view of a folding display device according to an embodiment of the present invention, in which a flexible screen is omitted;

fig. 20 is an exploded view of a folding display device according to an embodiment of the present invention, in which a flexible screen is omitted;

fig. 21 is a schematic folding view of a folding display device according to an embodiment of the present invention;

FIG. 22 is a schematic cross-sectional view of a folded state of a folding display device according to an embodiment of the present invention;

fig. 23 is a schematic view showing an unfolded state structure of a folding display device according to an embodiment of the present invention, in which part of the components are omitted;

FIG. 24 is an enlarged schematic view at G in FIG. 23;

fig. 25 is a schematic view of the structure of fig. 24 with parts omitted.

In the figure, the 1-folding device, 2-first support plate, 20-receiving space, 21-first receiving portion, 3-second support plate, 31-second receiving portion, 4-intermediate housing, 5-rotating member, 51 a-first connecting member, 511 a-third sliding groove, 52 a-first arc sliding block, 51 b-second connecting member, 511 b-fourth sliding groove, 52 b-second arc sliding block 53 b-second arc sliding groove, 6-synchronizing member, 61-first connecting rod, 62-second connecting rod, 63-third connecting rod, 64-fourth connecting rod, 65-first connecting shaft, 66-second connecting shaft, 7-first supporting member, 71-first sliding supporting plate, 711-first clamping block, 72-first driving connecting rod, 721-first supporting end, 722-first slide, 723-first arcuate segment, 724-first slide, 73-first carrier, 731-first mounting hole, 732-first diagonal slide, 74-first mounting portion, 741-first tooth shaft hole, 742-first guide slot, 743-first guide bar, 7431-second boss, 75-first gear, 76-first rack, 761-first boss, 77-first mounting block, 771-first diagonal slide, 78-first flexible plate, 781-first limit slide, 782-arch, 79-first gear shaft, 8-second support assembly, 81-second slide pallet, 811-second detent block, 82-second drive link, 821-second branch end, 822-second slide, 823-second arc-shaped section, 83-second bearing part, 831-second mounting hole, 832-second inclined slide block, 84-second mounting part, 841-second gear shaft hole, 842-second guide groove, 843-second guide rod, 8431-third boss, 85-second gear, 86-second rack, 861-fourth boss, 87-second mounting block, 871-second inclined slide groove, 88-second flexible board, 881-second limit slide groove, 89-second gear shaft, 100-bent part, 101-first shell, 102-second shell, 103-first support block, 104-second support block, 105-third supporting block, 106-fourth supporting block, 107-third arc slider, 107 a-third arc chute, 1011-first mounting groove, 1021-second mounting groove, X-axis of first connecting shaft, Y-axis of second connecting shaft, Z-center of rotation of first supporting plate around first arc chute, W-center of rotation of second supporting plate around second arc chute, segment XZ-represents first crank length, segment YW-represents second crank length, segment XY-represents connecting rod, segment ZW-represents frame, L-first direction, J-second direction, G-third direction.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It should be noted that the terms "disposed" and "connected" should be construed broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through a central element or a central structure; the terms "parallel", "perpendicular", "flush" are to be understood in a broad sense, e.g. the actual angle between the two parts may be 89 ° or 91 ° due to assembly errors or tolerances of the parts themselves, and unless specified otherwise the two parts are to be understood as perpendicular.

In addition, in the embodiments of the present invention, terms of directions or positional relationships indicated by "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are directions or positional relationships based on the directions or positional relationships shown in the drawings or the conventional placement state or use state, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structures, features, devices or elements to be referred to must have specific directions or positional relationships nor must be constructed and operated in specific directions, and thus should not be construed as limiting the present invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by different combinations of features/embodiments, where not contradictory, and various possible combinations of features/embodiments in the present invention are not described further in order to avoid unnecessary repetition.

In the invention, the middle shell is taken as a reference object, the horizontal plane is determined according to the azimuth of the middle shell, and the following is defined: the first direction L is on the horizontal plane and is parallel to the direction of the longest side of the intermediate housing 4, the second direction J is perpendicular to the horizontal plane, the third direction G is on the horizontal plane and is perpendicular to the first direction L.

As shown in fig. 1 and fig. 2, the folding device 1 provided by the embodiment of the invention can be applied to electronic display devices such as smart phones and tablet computers, and solves the problem that a large-screen display device is inconvenient to carry due to large size by folding or unfolding. The folding device 1 comprises a first support plate 2, a second support plate 3, a synchronous rotating mechanism, a support assembly and an intermediate shell 4, wherein the synchronous rotating mechanism is arranged on the intermediate shell 4, the synchronous rotating mechanism is used for driving the first support plate 2 and the second support plate 3 to synchronously rotate relative to the intermediate shell 4 so as to realize folding or unfolding, the support assembly is arranged between the first support plate 2 and the second support plate 3, and in the process of switching the folding state into the unfolding state, the first support plate 2 and the second support plate 3 drive the support assembly to move (ascend along a second direction J) to approach the first support plate 2 and the second support plate 3, so that the support assembly supports and fills a gap between the first support plate 2 and the second support plate 3, namely the unfolding state, the first support plate 2, the second support plate 3 and the support assembly are positioned on the same plane (the same plane referred to in the invention is not an absolute concept, in practical application, due to assembly errors or part tolerances, the support assembly can be slightly lower than or slightly higher than the plane), and the reasons of the support assembly errors such as flexible objects on the first support plate 2 and the second support plate 3 are prevented from being tiled between the first support plate 2 and the second support plate 3; and in the process of switching the unfolding state into the folding state, the first support plate 2 and the second support plate 3 drive the support component to move (sink along the second direction J) away from the first support plate 2 and the second support plate 3 so as to provide a space for avoiding, and the support component is prevented from being clamped between the first support plate 2 and the second support plate 3 to influence the opposite rotation of the first support plate 2 and the second support plate 3.

Alternatively, as shown in fig. 4 and 5, the support assembly includes a first support assembly 7 and a second support assembly 8, the first support assembly 7 includes a first sliding supporting plate 71 and a first moving assembly, the second support assembly 8 includes a second sliding supporting plate 81 and a second moving assembly, the first sliding supporting plate 71 and the second sliding supporting plate 81 are disposed at intervals along a first direction L of the intermediate housing 4, the first moving assembly is used for driving the first sliding supporting plate 71 to rotate with the first supporting plate 2 to approach or separate from the first supporting plate 2 and the second supporting plate 3, and the second moving assembly is used for driving the second sliding supporting plate 81 to rotate with the second supporting plate 3 to approach or separate from the first supporting plate 2 and the second supporting plate 3, wherein the first direction L of the intermediate housing 4 is located on a horizontal plane.

Specifically, in the process of switching the folded state to the unfolded state, the first sliding supporting plate 71 gradually approaches the first supporting plate 2 and the second supporting plate 3 along with the rotation of the first supporting plate 2, and the second sliding supporting plate 81 gradually approaches the first supporting plate 2 and the second supporting plate 3 along with the rotation of the second moving component; in the process of switching the unfolding state to the folding state, under the action of the first moving component, the first sliding supporting plate 71 is gradually far away from the first supporting plate 2 and the second supporting plate 3 along with the rotation of the first supporting plate 2, and under the action of the second moving component, the second sliding supporting plate 81 is far away from and close to the first supporting plate 2 and the second supporting plate 3 along with the rotation of the second supporting plate 3.

The first moving assembly includes a first drive link 72, a first bearing 73 and a first mounting block 77, and the second moving assembly includes a second drive link 82, a second bearing 83 and a second mounting block 87.

As shown in fig. 4 and 5, the first sliding supporting plate 71 is connected with the first bearing portion 73 at one end facing the second sliding supporting plate 81, the first driving connecting rod 72 is located between the first sliding supporting plate 71 and the second sliding supporting plate 81, the first driving connecting rod 72 is close to the first bearing portion 73, one end of the first driving connecting rod 72 is fixedly connected with the first supporting plate 2, the other end of the first driving connecting rod 72 is connected with the first supporting end 721, the middle part of the first driving connecting rod 72 is concavely formed with the first arc-shaped section 723 towards the middle shell 4, the first supporting end 721 is provided with the first sliding groove 722, the first bearing portion 73 is connected with the first sliding piece 724, the first sliding piece 724 is slidingly connected with the first sliding groove 722, the first sliding piece 724 can rotate relative to the first sliding groove 722, the first mounting block 77 is fixedly mounted on the middle shell 4, the first mounting block 77 is provided with the first inclined sliding groove 771 inclined relative to the second direction J of the middle shell 4, the first inclined sliding groove 732 is also connected with the first inclined sliding groove 771. The first driving link 72 rotates with the first supporting plate 2, and the first sliding piece 724 and the first sliding groove 722 cooperate, so that the first driving link 72 drives the first sliding supporting plate 71 to move along the first inclined sliding groove 771.

The method comprises the following steps: the first supporting plate 2 rotates to further drive the first driving link 72 to rotate, and since the first bearing portion 73 is rotationally connected with the first chute 722 of the first support end 721 through the first sliding piece 724, and through the guiding cooperation of the first inclined sliding block 732 and the first inclined chute 771, when the first driving link 72 rotates, the first bearing portion 73 is driven to slide along the first inclined chute 771, and meanwhile, the first sliding supporting plate 71 moves along with the first bearing portion 73, so that the first sliding supporting plate 71 moves up or down along the first inclined chute 771. Specifically, the first sliding supporting plate 71 moves upward along the first inclined sliding groove 771 while the first supporting plate 2 rotates away from the second supporting plate 3, and the first sliding supporting plate 71 moves downward along the first inclined sliding groove 771 while the first supporting plate 2 rotates toward the second supporting plate 3.

At the same time, by the sliding fit of the first slider 724 with the first runner 722. Thus, in the initial stage of the rotation of the first support plate 2 toward the second support plate 3, the first slide supporting plate 71 rotates with the first driving link 72 to move downward along the first inclined sliding groove 771 of the first mounting block 77. When the first driving link 72 rotates to a certain angle, the first slider 724 is no longer constrained by the first sliding slot 722, and at this time, the first sliding support plate 71 remains stationary, and the first support end 721 slides relative to the first sliding support plate 71 through the first sliding slot 722. That is, only the sinking distance of the first sliding supporting plate 71 needs to be ensured to meet the requirement, and the first sliding supporting plate 71 does not need to be caused to sink along with the rotation of the first supporting plate 2 in the whole process, so that the dimension of the middle shell 4 in the vertical direction (i.e. the thickness of the middle shell 4) can be reduced, which is beneficial to realizing the light and thin design of the folding device 1. Wherein the first arcuate segment 723 of the first drive link 72 is configured to provide clearance for the sinking motion of the first slip pallet 71.

As shown in fig. 4, fig. 5 and fig. 7, one end of the second sliding supporting plate 81 facing the first sliding supporting plate 71 is connected with a second bearing portion 83, the second driving connecting rod 82 is located between the first sliding supporting plate 71 and the second sliding supporting plate 81, the second driving connecting rod 82 is close to the second bearing portion 83, one end of the second driving connecting rod 82 is connected with the second supporting plate 3, the other end of the second driving connecting rod 82 is connected with a second branch end 824, the middle part of the second driving connecting rod 82 is concavely formed with a second arc-shaped section 823 toward the middle housing 4, the second branch end 824 is provided with a second sliding groove 822, the second bearing portion 83 is connected with a second sliding piece 824, the second sliding piece 824 is slidably connected with the second sliding groove 822, the second sliding piece 824 can rotate relative to the second sliding groove 822, a second mounting block 87 is mounted on the middle housing 4, the second mounting block 87 is provided with a second inclined sliding groove 871 inclined relative to the second direction J of the middle housing 4, the second bearing portion 83 is also connected with a second inclined sliding piece 832, the second inclined sliding piece 871 is slidably connected with the second inclined sliding groove 871, the second supporting plate 82 is slidably matched with the second sliding piece 824 through the second driving connecting rod 82, and the second sliding piece 81 is slidably matched with the second sliding piece 81. The working principle of the second supporting component 8 is the same as that of the first supporting component 7, and for avoiding redundancy, please refer to the above description of the first supporting component 7.

In some embodiments, the groove lengths of the first and second sliding

grooves

722 and 822 point to the third direction G when the first and

second support plates

2 and 3 are in the unfolded state, and the groove lengths of the first and second sliding

grooves

722 and 822 point to the second direction J when the first and

second support plates

2 and 3 are in the folded state.

Specifically, as shown in fig. 7, the cross-sections of the first diagonal slider 732 and the second diagonal slider 832 may be cross-shaped or T-shaped, and accordingly, the cross-sectional shapes of the first diagonal slider 771 and the first diagonal slider 871 are similar to the cross-sectional shapes of the first diagonal slider 732 and the second diagonal slider 832, respectively, and by this arrangement, the stability of the movement of the first diagonal slider 732 and the second diagonal slider 832 can be further ensured.

Specifically, as shown in fig. 4 and 7, the first bearing part 73 is provided with a first mounting hole 731, and the first slider 724 may be a shaft pin mounted in the first mounting hole 731; the second bearing portion 73 is provided with a second mounting hole 831, and the second slider 824 may be a shaft pin mounted in the second mounting hole 831.

Alternatively, as shown in fig. 4 to 6, the first sliding support plate 71 is connected with the first mounting portion 74 at an end far from the second sliding support plate 81, the first mounting portion 74 is provided with the first guide groove 742, the intermediate housing 4 is provided with the first guide rod 743, and the first guide rod 743 is obliquely disposed with respect to the second direction J of the intermediate housing 4 such that the first guide rod 743 is parallel to the first inclined slide groove 771, that is, an angle between the first guide rod 743 and the second direction J is equal to an angle between the first inclined slide groove 771 and the second direction J, and the first guide groove 742 is slidably connected to the first guide rod 743 such that the first mounting portion 74 can slide along the first guide rod 743. By the guiding action of the first guide rod 743 and the first guide groove 742, the cooperation of the first inclined slide block 732 and the first inclined slide groove 771 further ensures that the two ends of the first sliding support plate 71 can synchronously rise or sink, and the movement stability is good.

The second sliding support plate 81 is connected with a second mounting portion 84 at an end far from the first sliding support plate 71, the second mounting portion 84 is provided with a second guiding groove 842, the middle housing 4 is provided with a second guiding rod 843, the second guiding rod 843 is obliquely arranged relative to the second direction J of the middle housing 4, so that the second guiding rod 843 is parallel to the second inclined chute 871, that is, an included angle between the second guiding rod 843 and the second direction J is equal to an included angle between the second inclined chute 871 and the second direction J, and the second guiding groove 842 is slidably connected to the second guiding rod 843, so that the second mounting portion 84 can slide along the second guiding rod 843. By the guiding action of the second guiding rod 843 and the second guiding groove 842, the combination of the second inclined sliding block 832 and the second inclined sliding groove 871 further ensures that the two ends of the second sliding supporting plate 81 can synchronously ascend or descend, and the movement stability is good.

Alternatively, as shown in fig. 1, 2 and 7, the synchronous rotation mechanism includes a rotation assembly 5 and a synchronization assembly 6, the synchronization assembly 6 is used for controlling the first support plate 2 and the second support plate 3 to realize synchronous rotation, the synchronization assembly 6 is located between the first support plate 2 and the second support plate 3, and the rotation assembly 5 is used for guiding the first support plate 2 and the second support plate 3 to rotate according to a set track. And in the process of switching the folded state to the unfolded state, one ends of the first support plate 2 and the second support plate 3 close to the intermediate housing 4 are close to each other. In this way, the distance between the first support plate 2 and the second support plate 3 can be effectively reduced; in the process of switching the unfolding state to the folding state, one ends of the first support plate 2 and the second support plate 3, which are close to the middle shell 4, are far away from each other, so that an accommodating space 20 is formed between the first support plate 2 and the second support plate 3 in combination with the support assembly, and when the folding display device with the flexible screen is applied to the folding display device with the flexible screen, the accommodating space 20 can be used for accommodating the bending part 100 of the flexible screen.

Alternatively, as shown in fig. 2 and 9 to 14, the rotating assembly 5 includes a first connecting member 51a, a second connecting member 51b, a first arc-shaped slider 52a and a second arc-shaped slider 52b, in a first direction L along the intermediate housing 4, the first supporting plate 2 is connected with the first connecting member 51a at an end near the first sliding support plate 71, the second supporting plate 3 is connected with the second connecting member 51b at an end near the second sliding support plate 81, the first connecting member 51a is connected with the first arc-shaped slider 52a at a side facing away from the first sliding support plate 71, the second connecting member 51b is connected with the second arc-shaped slider 52b at a side facing away from the second sliding support plate 81, the intermediate housing 4 is provided with a first arc-shaped chute (not shown in the figure) and a second arc-shaped chute 53b on opposite side walls along the first direction L, the first arc-shaped chute 52a is slidably connected with the first arc-shaped slider 52a, and the second arc-shaped slider 52b is slidably connected with the second arc-shaped chute 53b. Specifically, the first and second arc chute 53b are each disposed along the third direction G of the intermediate housing 4. In this way, by the sliding fit of the first arc-shaped sliding block 52a and the first arc-shaped sliding groove and the sliding fit of the second arc-shaped sliding block 52b and the second arc-shaped sliding groove 53b, in the process of switching the unfolding state into the folding state, the contact areas of the first arc-shaped sliding block 52a and the first arc-shaped sliding groove, the second arc-shaped sliding block 52b and the second arc-shaped sliding groove 53b are gradually reduced, namely, the first arc-shaped sliding block 52a partially retreats from the first arc-shaped sliding groove, and the second arc-shaped sliding block 52b partially retreats from the second arc-shaped sliding groove 53b, so that one sides of the first support plate 2 and the second support plate 3 close to the middle shell 4 are mutually far away; in the process of switching the folding state to the unfolding state, the contact areas of the first arc-shaped sliding block 52a and the first arc-shaped sliding groove, and the contact areas of the second arc-shaped sliding block 52b and the second arc-shaped sliding groove 53b become larger gradually, namely, the length of the first arc-shaped sliding block 52a extending into the first arc-shaped sliding groove becomes longer, and the length of the second arc-shaped sliding block 52b extending into the second arc-shaped sliding groove 53b becomes longer, so that one sides of the first support plate 2 and the second support plate 3, which are close to the middle shell 4, are close to each other.

Specifically, the first connection member 51a and the first arc slider 52a, and the second connection member 51b and the second arc slider 52b may be an integrally formed structure.

Alternatively, the synchronizing assembly 6 may be provided with one, two or more sets; when there are at least two sets of synchronizing assemblies 6, at least two sets of synchronizing assemblies 6 are arranged at intervals along the first direction L of the intermediate housing 4. By providing more than two sets of synchronizing assemblies 6, stability of the synchronized movement of the first support plate 2 and the second support plate 3 is ensured.

Alternatively, as shown in fig. 16, the synchronizing assembly 6 includes a first link 61, a second link 62, a third link 63, and a fourth link 64, the first link 61 and the second link 62 being disposed at intervals along a first direction L of the intermediate housing 4, one end of the third link 63 being rotatably connected with the first link 61 and the second link 62, respectively, through a first connecting shaft 65, the other end of the third link 63 being fixedly connected with the first support plate 2, one end of the fourth link 64 being rotatably connected with the first link 61 and the second link 62, respectively, through a second connecting shaft 66, the other end of the fourth link 64 being fixedly connected with the second support plate 3, such that the third link 63 and the fourth link 64 are rotated with the first support plate 2 and the second support plate 3, respectively. The third link 63 and the fourth link 64 are disposed at intervals along the second direction J of the intermediate housing 4, and the first link 61 and the second link 62 are slidable along the third direction G of the intermediate housing 4 (the first link 61 and the second link 62 are integrally formed), specifically, the first link 61 and the second link 62 are slid in the intermediate housing 4 and simultaneously toward one side of the first support plate 2 or the second support plate 3 with respect to the intermediate housing 4. As shown in fig. 17, the operation mode of the synchronization assembly 6 is equivalent to a set of anti-parallelogram mechanisms, wherein the projection distance from the center Z of rotation of the first support plate 2 around the first arc chute to the center of rotation of the third link 63 (the axis X of the first connecting shaft 65) is regarded as a first crank length XZ, the projection distance from the center W of rotation of the second support plate 3 around the second arc chute 53b to the center of rotation of the fourth link 64 (the axis Y of the second connecting shaft 66) is regarded as a second crank length YW, the center distance between the first connecting shaft 65 and the second connecting shaft 66 is regarded as a link XY, the projection distance between the center of rotation of the first support plate 2 around the first arc chute and the center of rotation of the second support plate 3 around the second arc chute 53b is regarded as the movement of the anti-parallelogram mechanism formed by the frame ZW. synchronization assembly 6, the third link 63 rotates with the first support plate 2, the fourth link 64 rotates with the second support plate 3, and the third link 63 and the fourth link 64 rotates with the second support plate 3, due to the constraint of the first link 61 and the second link 64, that the third link 63 and the fourth link 64 realize synchronous rotation, namely, when the third link 63 and the fourth link 64 rotate in the opposite directions clockwise or counterclockwise direction when the third link 63 and the fourth link 64 rotate in opposite directions, and the clockwise direction and the opposite directions when the third link 63 rotates in the opposite directions. The synchronous component 6 adopts the design of a connecting rod mechanism, utilizes the characteristic of movement of the connecting rod mechanism, reduces the compression of unit contact surface, increases the contact area, is convenient for lubrication, can effectively reduce the noise generated in the folding process, and brings better sensory experience to users compared with the design of adopting synchronous rotation of gears in the traditional scheme.

In some embodiments, the range of motion angle of the synchronizing assembly 6 is 45-135 within the range of polar angles.

Optionally, as shown in fig. 2, 3, 9, 12 and 15, the folding device 1 further includes a first rack 76, a first gear 75, a first gear shaft 79, a second rack 86, a second gear 85 and a second gear shaft 89. The first gear 75 is disposed between the first mounting portion 74 and the first connecting member 51a, the first mounting portion 74 is provided with a first gear shaft hole 741, the first connecting member 51a is provided with a third sliding groove 511a, the first gear 75 has a shaft hole, the first gear shaft 79 passes through the shaft hole to be connected with the first gear 75, one end of the first gear shaft 79 is connected with the first gear shaft hole 741, the other end of the first gear shaft 79 is slidably connected with the third sliding groove 511a, the first gear shaft 79 can also rotate relative to the third sliding groove 511a, the first rack 76 is obliquely disposed in the intermediate housing 4 relative to the second direction J, the first gear 75 is engaged with the first rack 76, and the first gear 75 rolls along the first rack 76 through the cooperation of the first gear shaft 79 and the third sliding groove 511a when the first sliding support plate 71 moves. The specific movement process is as follows: when the first sliding support plate 71 moves up, the first sliding support plate 71 drives the first gear 75 to slide upwards along the first rack 76, when the first sliding support plate 71 moves down, the first sliding support plate 71 drives the first gear 75 to slide downwards along the first rack 76, and the first sliding support plate 71 moves stably through the cooperation of the gear and the rack.

As shown in fig. 2 and 3, the second gear 85 is disposed between the second mounting portion 84 and the second connecting member 51b, the second mounting portion 84 is provided with a second gear shaft hole 841, the second connecting member 51b is provided with a fourth sliding groove 511b, the second gear 85 has a shaft hole, the second gear shaft 89 passes through the shaft hole to be connected with the second gear 85, one end of the second gear shaft 89 is connected with the second gear shaft hole 841, the other end of the second gear shaft 89 is slidably connected with the fourth sliding groove 511b, the second gear shaft 89 is rotatable relative to the fourth sliding groove 511b, the second rack 86 is disposed in the intermediate housing 4 obliquely relative to the second direction J, the second gear 85 and the second rack 86 are engaged and connected, and the second gear 85 rolls along the second rack 86 when the second sliding pallet 81 moves by cooperation of the second gear shaft 89 and the fourth sliding groove 511 b. The specific movement process is as follows: when the second sliding supporting plate 81 moves upwards, the second sliding supporting plate 81 drives the second gear 85 to slide upwards along the second rack 86, when the second sliding supporting plate 81 moves downwards, the second sliding supporting plate 81 drives the first gear 75 to slide downwards along the second rack 86, and the second sliding supporting plate 81 moves stably through the cooperation of the gears and the racks.

Meanwhile, when the sinking distance of the first sliding supporting plate 71 and the second sliding supporting plate 81 meets the requirement, the first connecting piece 51a can slide continuously relative to the first gear shaft 79 through the third sliding groove 511a, and the second connecting piece 51b can slide continuously relative to the second gear shaft 89 through the fourth sliding groove 511b, so that the first supporting plate 2 and the second supporting plate 3 can be ensured to rotate continuously in opposite directions until being in a folded state.

In some embodiments, the first rack 76 may be angled with respect to the second direction J by an angle equal to the angle of the first guide rod 743 with respect to the second direction J, and the second rack 86 may be angled with respect to the second direction J by an angle equal to the angle of the second guide rod 843 with respect to the second direction J.

In some embodiments, the groove lengths of the third and fourth sliding

grooves

511a and 511b are directed in the third direction G when the first and

second support plates

2 and 3 are in the unfolded state, and the groove lengths of the third and fourth sliding

grooves

511a and 511b are directed in the second direction J when the first and

second support plates

2 and 3 are in the folded state.

Specifically, as shown in fig. 2, a first boss 761 and a second boss 7431 may be disposed in the intermediate housing 4, the first boss 761 being used for supporting and fixing the first rack 76, and the second boss 7431 being used for supporting and fixing the first guide rod 743. A third boss 8431 and a fourth boss 861 are further disposed in the middle housing 4, the third boss 8431 is used for supporting and fixing the second rack 86, and the fourth boss 861 is used for supporting and fixing the second guide rod 843.

In some embodiments, the second boss 7431 and the first guide rod 743 may be an integrally formed structure, and the fourth boss 861 and the second guide rod 843 may be an integrally formed structure.

Optionally, as shown in fig. 2, 4 and 5, the first support assembly 7 further includes a first flexible plate 78 mounted to the first sliding tray 71; the second support assembly 8 further includes a second flexible plate 88 mounted to the second slip blade 81. When the first support plate 2 and the second support plate 3 are in the unfolded state, the plane in which the first sliding support plate 71 and the second sliding support plate 81 are located is lower than the plane in which the first support plate 2 and the second support plate 3 are unfolded, and the difference in height between the plane in which the first sliding support plate 71 and the second sliding support plate 81 are located and the plane in which the first support plate 2 and the second support plate 3 are unfolded is equal to the thickness of the first flexible plate 78 or the second flexible support plate. By providing the first and second

flexible plates

78 and 88, the first and second

flexible plates

78 and 88 can effectively conceal the gap between the first and

second support plates

2 and 3 when the first and

second support plates

2 and 3 are unfolded.

Further, the flexible plate is adopted, and the characteristics of bending deformation of the flexible plate are utilized, so that the first support plate 2 and the second support plate 3 cannot be interfered to rotate on the premise that the first flexible plate 78 and the second flexible plate 88 effectively shield the gap between the first support plate 2 and the second support plate 3.

Alternatively, as shown in fig. 5 and 8, the first flexible board 78 is provided with a first limiting chute 781, the first sliding supporting board 71 is provided with a first clamping block 711, the first clamping block 711 may be clamped in the first limiting chute 781, and the first clamping block 711 may slide along the third direction G relative to the first limiting chute 781;

the second flexible board 88 is provided with a second limiting chute 881, the second sliding supporting board 81 is provided with a second clamping block 811, the second clamping block 811 can be clamped in the second limiting chute 881, and the second clamping block 811 can slide along the third direction G relative to the second limiting chute 881. Through the cooperation of spacing spout and screens piece, ensure that first flexible board 78 can rise or sink along with first slip layer board 71, second flexible board 88 can be along with first slip layer board 71 is synchronous, simultaneously, because first slip layer board 71 plays the supporting role to first flexible board 78, second slip layer board 81 is to second flexible board 88, when first flexible board 78 and second flexible board 88 receive first backup pad 2 and second backup pad 3 extrusion respectively along the both sides of third direction G, take place the protruding deformation that makes, through making first flexible board 78 and second flexible board 88 have the gliding space with first slip layer board 71 and second slip layer board 81 respectively, thereby realize that first flexible board 78 and second flexible board 88 are protruding deformation upwards.

Specifically, the materials of the first flexible board 78 and the second flexible board 88 may be silica gel strips, flexible resin or elastic steel, so that the first flexible board 78 and the second flexible board 88 have good elastic deformation performance, the problem of fracture caused by stress fatigue in the using process is avoided, and the reliability of the equipment is ensured.

Alternatively, as shown in fig. 22, the first flexible board 78 and the second flexible board 88 are provided with arch surfaces 782 on opposite sides in the third direction G of the intermediate housing 4, respectively, and the arch surfaces 782 are concave in a direction away from the intermediate housing 4. In this way, when the first flexible board 78 and the second flexible board 88 are pressed by the first support board 2 and the second support board 3, the first flexible board 78 and the second flexible board 88 are more facilitated to be deformed convexly upward.

Alternatively, as shown in fig. 2, 9, and 10 to 12, the first support plate 2 is connected to the first accommodating portion 21 at an end near the middle housing 4, and the second support plate 3 is connected to the second accommodating portion 31 at an end near the middle housing 4, and the first accommodating portion 21 and the second accommodating portion 31 may be arc plates. When the first support plate 2 and the second support plate 3 are in the folded state, the accommodating space 20 formed by the first support plate 2, the second support plate 3 and the support assembly has a cross section in a drop shape. By providing the first accommodating portion 21 and the second accommodating portion 31, on the one hand, in order to further enlarge the accommodating space 20, when the bending portion 100 of the flexible screen is accommodated in the accommodating space 20, the first accommodating portion 21 and the second accommodating portion 31 are in curved surface contact with the bending portion 100 of the flexible screen, so that the bending portion of the flexible screen is not extruded, and crease generated by folding the flexible screen is effectively reduced; on the other hand, through setting up the acceptors, after first backup pad 2 and second backup pad 3 draw close mutually for first backup pad 2 and second backup pad 3 keep parallel state as far as possible, overall structure pleasing to the eye.

In the process of switching the unfolding state to the folding state, the first accommodating part 21 and the second accommodating part 31 rotate to gradually contact with the arched surfaces 782 on two sides of the first flexible plate 78 and the second flexible plate 88, respectively squeeze the arched surfaces 782 of the first flexible plate 78 and the second flexible plate 88, the first flexible plate 78 and the second flexible plate 88 are squeezed, the first limiting sliding chute 781 slides relative to the first clamping block 711 and the second limiting sliding chute 881 relative to the second clamping block 811, so that the first flexible plate 78 and the second flexible plate 88 are convexly deformed upwards (downwards concave does not occur due to the fact that the flexible plate is supported by the sliding support plate), and the first accommodating part 21 and the second accommodating part 31 are separated from the arched surfaces 782 after the first flexible plate 78 and the second flexible plate 88 sink to a preset position along with the second sliding support plate 81, and the first flexible plate 78 and the second flexible plate 88 are restored to the original state; in the process of switching the folded state to the unfolded state, the first accommodating part 21 and the second accommodating part 31 gradually contact with the arched surfaces 782 on two sides of the first flexible plate 78 and the second flexible plate 88 due to rotation, respectively squeeze the arched surfaces 782 of the first flexible plate 78 and the second flexible plate 88, the first flexible plate 78 and the second flexible plate 88 are squeezed, the first limiting sliding chute 781 slides relative to the first clamping block 711 and the second limiting sliding chute 881 relative to the second clamping block 811, so that the first flexible plate 78 and the second flexible plate 88 are convexly deformed upwards until the first flexible plate 78 rises to a preset position along with the first sliding supporting plate 71 and the second flexible plate 88 along with the second sliding supporting plate 81, and then the first accommodating part 21 and the second accommodating part 31 are separated from the arched surfaces 782, and the first flexible plate 78 and the second flexible plate 88 are restored to the original state.

The invention also provides folding display equipment with the flexible screen, and the display equipment can be a smart phone, a tablet personal computer and the like. The embodiment is illustrated by taking a smart phone as an example, as shown in fig. 19 to 22, and includes a first housing 101, a second housing 102, a flexible screen (not shown in the drawings) and the above-mentioned folding device 1, where a first support plate 2 of the folding device 1 is fixedly connected to the first housing 101, and a second support plate 3 of the folding device 1 is fixedly connected to the second housing 102, so that the first housing 101 and the second housing 102 can synchronously rotate to realize folding or unfolding, and the first housing 101 and the second housing 102 are used for carrying the flexible screen. Through folding mode, satisfy the user simultaneously to the user demand of display device large screen demonstration and portable. Meanwhile, when the folding display device is unfolded, the support component of the folding device 1 moves upwards along the second direction J to support the part of the flexible screen between the first shell 101 and the second shell 102, so that the flexible screen is prevented from sinking into a gap between the first support plate 2 and the second support plate 3 when a user touches the flexible screen; when the folding display device is folded, the bending portion 100 of the flexible screen between the first housing 101 and the second housing 102 is accommodated in the accommodating space 20 of the folding device 1, so that the bending portion 100 of the flexible screen can be naturally bent to effectively fade the crease generated by the screen. And brings good use experience to users. Among them, various functional devices, such as a battery, a main board, a speaker, a receiver, a camera module, an antenna, a memory, a power connector, an earphone connector, and the like, are mounted in the first and

second cases

101 and 102 for realizing various functions of the folding display device.

Alternatively, the first support plate 2 is laid on the surface of the first housing 101, and the second support plate 3 is laid on the surface of the second housing 102. As shown in fig. 23, specifically: the first housing 101 may be provided with a first mounting groove 1011 at one side near the folding device 1, the first mounting groove 1011 is provided with a first supporting block 103 and a second supporting block 104 at opposite ends in the first direction L of the intermediate housing 4, respectively, the first supporting plate 2 is connected with the first supporting block 103 and the second supporting block 104, respectively, that is, the first supporting block 103 and the second supporting block 104 are used for supporting and fixing the first supporting plate 2, and the distance from the first supporting block 103 and the second supporting block 104 to the upper surface of the first housing 101 is equal to the thickness of the first supporting plate 2. The second housing 102 is provided with a second mounting groove 1021 at a side close to the folding device 1, the second mounting groove 1021 is provided with a third support block 105 and a fourth support block 106 at opposite ends in the first direction L of the intermediate housing 4, respectively, the second support plate 3 is connected with the third support block 105 and the fourth support block 106, respectively, that is, the third support block 105 and the fourth support block 106 are used for supporting and fixing the second support plate 3, and the distance from the third support block 105 and the fourth support block 106 to the upper surface of the second housing 102 is equal to the thickness of the second support plate 3. As shown in fig. 24 and 25, the first supporting block 103 is adjacent to the second connecting piece 51b of the folding device 1, the first supporting block 103 is connected with a third arc-shaped sliding block 107, the third arc-shaped sliding block 107 points to the second arc-shaped sliding block 52b, the middle housing 4 of the folding device 1 is further provided with a third arc-shaped sliding groove 107a on the side wall provided with the second arc-shaped sliding groove 53b, the third arc-shaped sliding groove 107a and the second arc-shaped sliding groove 53b are located on the same plane, the third arc-shaped sliding block 107 is slidably connected to the third arc-shaped sliding groove 107a, and the sliding fit between the first arc-shaped sliding block 52a and the first arc-shaped sliding groove, and between the third arc-shaped sliding block 107 and the third arc-shaped sliding groove 107a further ensures the rotation stability of the first housing 101. The fourth supporting block 106 is adjacent to the first connecting piece 51a of the folding device 1, the fourth supporting block 106 is connected with a fourth arc-shaped sliding block, the fourth arc-shaped sliding block points to the first arc-shaped sliding block 52a, a fourth arc-shaped sliding groove (not shown in the figure) is further formed in the side wall of the middle shell 4 of the folding device 1, which is provided with the first arc-shaped sliding groove, the first arc-shaped sliding groove and the fourth arc-shaped sliding groove are located on the same plane, the fourth arc-shaped sliding block is slidably connected to the fourth arc-shaped sliding groove, and the sliding fit of the second arc-shaped sliding block 52b and the second arc-shaped sliding groove 53b and the fourth arc-shaped sliding block and the fourth arc-shaped sliding groove further ensures the rotating stability of the second shell 102. The movement principle of the second arc-shaped sliding block 52b and the second arc-shaped sliding groove 53b, and the movement principle of the fourth arc-shaped sliding block and the fourth arc-shaped sliding groove are the same as the principle of the first arc-shaped sliding block 52a and the first arc-shaped sliding groove. And the third arc-shaped sliding block 107 is connected to the first supporting block 103, and the fourth arc-shaped sliding block is connected to the fourth supporting block 106, so that the folding device 1 has a compact structure, and is beneficial to realizing the light and thin display equipment.

The folding device 1 and the folding display equipment with the flexible screen provided by the embodiment of the invention have the following advantages:

1. the folding device 1 of the invention realizes folding and unfolding of the display equipment, can meet the use requirements of a user on large screen display and is convenient to carry, meanwhile, after the folding display equipment is folded, the bending part 100 of the flexible screen is contained in the containing space 20 of the folding device 1, so that the bending part 100 of the flexible screen can be naturally bent to effectively fade the formation of screen folds, after the folding display equipment is unfolded, the supporting component can support the part of the flexible screen between the first shell 101 and the second shell 102, the flexible screen is prevented from sinking into the gap between the first shell 101 and the second shell 102 when the user touches the display equipment, and the user experience is improved;

2. the synchronous rotation of the first support plate 2 and the second support plate 3 is realized by adopting the connecting rod mechanism, compared with the traditional mode of adopting the synchronous gear, the unit contact surface compression is reduced, the contact area is increased, the lubrication is convenient, and the noise generated in the folding process of the folding display device is effectively reduced.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.

Claims

1. The folding device is characterized by comprising a first supporting plate, a second supporting plate, a synchronous rotating mechanism, a supporting component and an intermediate shell, wherein the synchronous rotating mechanism is arranged in the intermediate shell and is used for driving the first supporting plate and the second supporting plate to synchronously rotate relative to the intermediate shell so as to realize folding or unfolding, the supporting component is arranged between the first supporting plate and the second supporting plate, and in the process of switching a folding state into an unfolding state, the first supporting plate and the second supporting plate drive the supporting component to move close to the first supporting plate and the second supporting plate, so that the supporting component is supported between the first supporting plate and the second supporting plate; in the process of switching the unfolding state into the folding state, the first supporting plate and the second supporting plate drive the supporting assembly to move away from the first supporting plate and the second supporting plate to provide an avoidance space;

the first support plate is connected with a first accommodating part at one end close to the middle shell, the second support plate is connected with a second accommodating part at one end close to the middle shell, and the first accommodating part and the second accommodating part are arc plates.

2. The folding apparatus of claim 1, wherein the support assembly comprises a first support assembly and a second support assembly, the first support assembly comprising a first sliding tray and a first moving assembly, the second support assembly comprising a second sliding tray and a second moving assembly, the first sliding tray and the second sliding tray being spaced apart along a first direction of the intermediate housing, the first moving assembly being configured to move the first sliding tray toward or away from the first support plate and the second support plate as the first support plate rotates, the second moving assembly being configured to move the second sliding tray toward or away from the first support plate and the second support plate as the second support plate rotates, wherein the first direction of the intermediate housing is oriented in a horizontal plane.

3. The folding device according to claim 2, wherein the first moving assembly comprises a first driving connecting rod, a first bearing part and a first mounting block, one end of the first sliding supporting plate facing the second sliding supporting plate is connected with the first bearing part, the first driving connecting rod is positioned between the first sliding supporting plate and the second sliding supporting plate, the first driving connecting rod is close to the first bearing part, one end of the first driving connecting rod is connected with the first supporting plate, the other end of the first driving connecting rod is connected with a first branch end, the first branch end is provided with a first sliding groove, the first bearing part is connected with a first sliding piece, the first sliding piece is connected with the first sliding groove in a sliding manner, the first sliding piece can rotate relative to the first sliding groove, the first mounting block is mounted on the middle shell, the first mounting block is provided with a first inclined sliding groove which inclines relative to the second direction of the middle shell, the first bearing part is also connected with a first supporting plate, the first sliding piece is connected with a first sliding groove, and the first sliding piece is connected with the first sliding supporting plate in a sliding manner, and the first sliding piece is driven by the first sliding piece and the first sliding supporting plate along the first sliding groove in a sliding manner;

4. A folding apparatus according to claim 3, wherein a first arcuate section is formed in a central portion of the first drive link recessed toward the intermediate housing, and a second arcuate section is formed in a central portion of the second drive link recessed toward the intermediate housing.

5. A folding device according to claim 3, wherein the first sliding support plate is connected to a first mounting portion at an end remote from the second sliding support plate, the first mounting portion is provided with a first guide groove, the intermediate housing is provided with a first guide bar, the first guide bar is parallel to the first inclined chute, and the first guide groove is slidably connected to the first guide bar;

6. The folding apparatus according to claim 5, wherein the synchronous rotation mechanism includes a rotation member and a synchronization member, the synchronization member is provided between the first support plate and the second support plate, the synchronization member is configured to control the first support plate and the second support plate to rotate synchronously, the rotation member is configured to guide the first support plate and the second support plate to rotate along a set trajectory, and during switching from the folded state to the unfolded state, one ends of the first support plate and the second support plate, which are adjacent to the intermediate housing, are adjacent to each other; in the process of switching the unfolding state into the folding state, one end, close to the middle shell, of the first supporting plate and one end, close to the middle shell, of the second supporting plate are far away from each other.

7. The folding apparatus according to claim 6, wherein the rotating assembly includes a first connecting member, a second connecting member, a first arc-shaped slider and a second arc-shaped slider, the first supporting plate is connected with the first connecting member at one end near the first sliding support plate in a first direction along the intermediate housing, the second supporting plate is connected with the second connecting member at one end near the second sliding support plate, the first connecting member is connected with the first arc-shaped slider at one side facing away from the first sliding support plate, the second connecting member is connected with the second arc-shaped slider at one side facing away from the second sliding support plate, the intermediate housing is respectively provided with a first arc-shaped chute and a second arc-shaped chute in opposite directions along opposite side walls of the first direction, the first arc-shaped slider is slidably connected with the first arc-shaped chute, and the second arc-shaped slider is slidably connected with the second arc-shaped chute.

8. A folding apparatus according to claim 6, wherein the synchronizing assembly is provided with one, two or more sets; when at least two groups of synchronous components exist, the synchronous components of at least two groups are arranged at intervals along the first direction of the middle shell.

9. The folding apparatus according to claim 8, wherein the synchronizing assembly includes a first link, a second link, a third link, and a fourth link, the first link and the second link being disposed at intervals in a first direction of the intermediate housing, one end of the third link being rotatably connected to the first link and the second link, respectively, through a first connecting shaft, the other end of the third link being rotatably connected to the first support plate, one end of the fourth link being rotatably connected to the first link and the second link, respectively, through a second connecting shaft, the other end of the fourth link being connected to the second support plate, the third link and the fourth link being disposed at intervals in a third direction of the intermediate housing, and the first link and the second link being slidable in a second direction of the intermediate housing, wherein the third direction of the intermediate housing is on a horizontal plane, and the third direction of the intermediate housing is perpendicular to the first direction of the intermediate housing.

10. The folding apparatus according to claim 7, further comprising a first rack, a first gear shaft, a second rack, a second gear and a second gear shaft, wherein the first gear is provided between the first mounting portion and the first connecting member, the first mounting portion is provided with a first gear shaft hole, the first connecting member is provided with a third slide groove, the first gear shaft passes through the first gear, one end of the first gear shaft is rotatably connected to the first gear shaft hole, the other end of the first gear shaft is slidably connected to the third slide groove, the first gear shaft is further rotatable relative to the third slide groove, the first rack is mounted in the intermediate housing, the first rack is obliquely arranged relative to the second direction of the intermediate housing, the first gear and the first rack are engaged and connected, and the first gear rolls along the first rack upon the first sliding movement by the cooperation of the first gear shaft and the third slide groove;

11. The folding apparatus of claim 2, wherein said first support assembly further comprises a first flexible plate mounted to said first slide pallet; the second support assembly further includes a second flexible plate mounted to the second slip blade.

12. The folding device of claim 11, wherein the first flexible board is provided with a first limiting chute, the first sliding support plate is provided with a first clamping block, the first clamping block is clamped in the first limiting chute, and the first clamping block can slide relative to the first limiting chute;

13. A folding device according to claim 12, wherein the first flexible sheet and the second flexible sheet are each provided with an arch on opposite sides in a third direction of the intermediate housing, the arch being concave in a direction away from the intermediate housing.

14. A folding display device with a flexible screen, characterized in that it comprises a first housing, a second housing, a flexible screen and a folding apparatus according to any of claims 1 to 13, a first support plate of the folding apparatus being connected to the first housing, a second support plate of the folding apparatus being connected to the second housing, the first housing and the second housing being adapted to carry the flexible screen.

15. The folding display device with a flexible screen according to claim 14, wherein the first housing is provided with a first mounting groove at one side close to the folding device, the first mounting groove is provided with a first supporting block and a second supporting block at opposite ends along a first direction of the intermediate housing, the first supporting plate is respectively connected with the first supporting block the second supporting block, the second housing is provided with a second mounting groove at one side close to the folding device, the second mounting groove is respectively provided with a third supporting block and a fourth supporting block at opposite ends along a first direction of the intermediate housing, the second supporting plate is respectively connected with the third supporting block the fourth supporting block, the first supporting block is adjacent to a second connecting piece of the folding device, the first supporting block is connected with a third arc sliding block, the intermediate housing of the folding device is further provided with a third arc sliding groove at a side wall provided with a second arc sliding groove, the third arc sliding block is slidably connected with the third supporting block, the fourth supporting block is further connected with a fourth arc sliding groove at a side wall provided with a fourth arc sliding groove, and the fourth arc sliding block is further connected with the fourth arc sliding groove.