CN113915228A

CN113915228A - Folding mechanism and inward-folding flexible screen mobile terminal

Info

Publication number: CN113915228A
Application number: CN202111237567.7A
Authority: CN
Inventors: 何晓强; 杨志鹏
Original assignee: Suzhou Lingye Intelligent Technology Co ltd
Current assignee: Suzhou Lingye Intelligent Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-01-11

Abstract

The utility model provides a folding mechanism, including the intermediate strut and with intermediate strut rotatable coupling's left rotating part and right rotating part, the intermediate strut can make left rotating part and right rotating part synchronous counter rotation through synchronous counter rotation mechanism, be provided with on the intermediate strut with synchronous counter rotation mechanism matched with elasticity cam hold-down mechanism, synchronous counter rotation mechanism, left rotating part and right rotating part can dodge the department of bending of flexible screen, an interior flexible screen mobile terminal of rolling over that uses above-mentioned folding mechanism is provided simultaneously. This openly can make the department of bending of flexible screen form the water droplet form, and the flexible screen overall length can not change, and the flexible screen can not collide with bearing structure, avoids causing damage etc. to the screen, can not cause tensile force and pressure on the screen length direction simultaneously, can guarantee that the roughness in the use is opened to the flexible screen, has improved the life of product.

Description

Folding mechanism and inward-folding flexible screen mobile terminal

Technical Field

The present disclosure relates to a flexible screen electronic device, and more particularly, to a folding mechanism for a foldable flexible screen mobile terminal and a foldable flexible screen mobile terminal.

Background

With the continuous progress of society and the rapid development of science and technology, electronic products are updated very rapidly, the use requirements of users on the electronic products are higher and higher, so that the functions of the electronic products are more and more diversified, and many new electronic products come up at the same time, for example, mobile terminals such as smart phones and tablet computers with flexible screens become current heat points and new trends. For a mobile terminal, the flexible screen is an ideal and emerging screen, the mobile terminal is folded when being carried, and is unfolded to obtain double display when being used, so that the requirement on large-screen display is met, and the sense of containing, maturity, stability and the like can be given to people. At present, for a flexible screen mobile terminal, how to design a folding mechanism to support, fold and the like the flexible screen is required to be solved, so that the damage of the bending part of the flexible screen is reduced, the service life is prolonged, and the flexible screen can be better applied to the mobile terminal.

Disclosure of Invention

The purpose of the present disclosure is to provide a folding mechanism and a foldable flexible screen mobile terminal, which can solve at least one of the above technical problems, and the technical scheme of the present disclosure is as follows:

the utility model provides a folding mechanism, including the intermediate support and with intermediate support rotatable coupling's left rotating part and right rotating part, the intermediate support can make the synchronous antiport of left rotating part and right rotating part through synchronous counter-rotating mechanism, the axis of left rotating part and the axis of right rotating part are parallel and all are located corresponding flexible screen, be provided with on the intermediate support with synchronous counter-rotating mechanism matched with elastic cam hold-down mechanism, elastic cam hold-down mechanism can provide torsion for synchronous counter-rotating mechanism, it is closed along with the flexible screen infolding, synchronous counter-rotating mechanism, left rotating part and right rotating part can dodge the department of bending of flexible screen.

In some embodiments, the left rotating component comprises a left sliding arm, the right rotating component comprises a right sliding arm, and the middle bracket is provided with a first arc-shaped track matched with the left sliding arm and a second arc-shaped track matched with the right sliding arm.

In some embodiments, the middle support includes a first base, a first fixing block is disposed on the first base, the first arc-shaped rail and the second arc-shaped rail are disposed on the first fixing block, and a first cover plate matched with the first arc-shaped rail and the second arc-shaped rail is disposed on the first fixing block.

In some embodiments, the left sliding arm has a first arc-shaped sliding portion, the right sliding arm has two second arc-shaped sliding portions symmetrically arranged, and the first arc-shaped sliding portion is located between the two second arc-shaped sliding portions.

In some embodiments, the middle bracket is provided at both ends thereof with a left rotating part, a right rotating part, a synchronous counter-rotating mechanism and an elastic cam pressing mechanism, respectively, and the middle part thereof is provided with a first connecting plate.

In some embodiments, the synchronous counter-rotating mechanism at least comprises a left gear and a right gear, the left gear and the right gear can synchronously counter-rotate, one axial end of the left gear and one axial end of the right gear are respectively provided with a first cam matched with the elastic cam pressing mechanism, and the two first cams synchronously rotate along with the left gear and the right gear respectively.

In some embodiments, the elastic cam pressing mechanism includes a second cam and a first elastic member, the second cam is matched with the first cam in a one-to-one correspondence manner, the second cam is fixed in the circumferential direction and can move axially, and the first elastic member enables the second cam to be matched with the first cam in an elastic manner.

In some embodiments, the synchronous counter-rotating mechanism further includes a left mounting plate and a right mounting plate, the left gear is provided with a first sliding portion extending out, the right gear is provided with a second sliding portion extending out, the left mounting plate is provided with a first sliding way matched with the first sliding portion, and the right mounting plate is provided with a second sliding way matched with the second sliding portion.

In some embodiments, two transition gears are arranged between the left side gear and the right side gear, the left side gear, the two transition gears and the right side gear are sequentially in transmission connection, the left side gear, the two transition gears and the right side gear are respectively and rotatably connected to four first rotating shafts, first cams are respectively arranged at two axial ends of the left side gear, two axial ends of each transition gear and two axial ends of the right side gear, two second cams in one-to-one correspondence with the two first cams are arranged on each first rotating shaft, at least one first elastic piece matched with one of the two second cams is arranged on each first rotating shaft, the first cams are springs sleeved on the first rotating shafts, and the two second cams are respectively and elastically matched with the two first cams.

The utility model provides an use flexible screen mobile terminal of infolding of above-mentioned folding mechanism, including flexible screen and the left side casing and the right side casing of settling the flexible screen, the intermediate support is located between left side casing and the right side casing, the left hand member of rotating is connected with the left side casing, the right hand member of rotating is connected with the right side casing, synchronous counter-rotating mechanism is connected with left side casing and right side casing respectively, the right hand member of rotating and synchronous counter-rotating mechanism can make the synchronous counter-rotating of left side casing and right side casing so that the flexible screen opens the exhibition flat and infolding closed.

The beneficial effects of this disclosure are: the synchronous reverse rotation mechanism of the folding mechanism can enable the left rotation part and the right rotation part to synchronously and reversely rotate, so that the left casing and the right casing synchronously and reversely rotate to realize the unfolding and folding-in closing of the flexible screen, the elastic cam pressing mechanism can provide torsion force for the synchronous reverse rotation mechanism to enable the flexible screen to be more stable in the unfolding state and the folding-in closing state, so that the axis of the left rotation part and the axis of the right rotation part are parallel and are positioned on the corresponding flexible screen along with the folding-in closing of the flexible screen, the synchronous reverse rotation mechanism, the left rotation part and the right rotation part can avoid the bending part of the flexible screen, the bending part of the flexible screen forms a water drop shape, the flexible screen cannot rise or fall, the total length of the flexible screen cannot change, the flexible screen cannot collide with a supporting structure, the damage to the screen is avoided, and the like, and meanwhile, the tension and pressure in the length direction of the screen cannot be caused, the flatness of the flexible screen in the use process can be guaranteed, the flexible screen is convenient to operate in the opening and folding processes, stability and reliability are high, the service life of a product is prolonged, the flexible screen can be better applied to various mobile terminals such as mobile phones and tablet computers, and application and development of the product are expanded.

In addition, in the technical solutions of the present disclosure, the technical solutions can be implemented by adopting conventional means in the art, unless otherwise specified.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an exploded view of a folding mechanism according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a left rotating member according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural view of a right rotating member according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of a first fixing block according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a folding mechanism according to an embodiment of the present disclosure.

Fig. 6 is a sectional view of an unfolded and flattened state of the fold-in flexible screen mobile terminal according to an embodiment of the present disclosure.

Fig. 7 is a sectional view of an unfolded and flattened state of the fold-in flexible screen mobile terminal according to an embodiment of the present disclosure.

Fig. 8 is a sectional view of a folded-in closed state of a mobile terminal having a folded-in flexible screen according to an embodiment of the present disclosure.

Fig. 9 is a sectional view of a folded-in closed state of a mobile terminal having a folded-in flexible screen according to an embodiment of the present disclosure.

Fig. 10 is a schematic structural diagram of an unfolded and flattened state of the fold-in flexible screen mobile terminal according to an embodiment of the present disclosure.

Fig. 11 is a schematic structural diagram of a folded-in closed state of a mobile terminal with a folded-in flexible screen according to an embodiment of the present disclosure.

Fig. 12 is a right housing of a left housing and a right housing of an embodiment of the present disclosure.

The reference numerals in the drawings indicate that the middle bracket 1, the first arc-shaped rail 101, the second arc-shaped rail 102, the first base 11, the first fixed block 12, the first cover plate 13, the first connecting plate 14, the left rotating part 2, the left sliding arm 21, the first arc-shaped sliding part 211, the right rotating part 3, the right sliding arm 31, the second arc-shaped sliding part 311, the synchronous counter rotating mechanism 4, the left gear 41, the first sliding part 411, the right gear 42, the second sliding part 421, the first cam 43, the left mounting plate 44, the first slideway 441, the right mounting plate 45, the second slideway 451, the transition gear 46, the elastic cam pressing mechanism 5, the second cam 51, the first elastic part 52, the first rotating shaft 53, the first limit block 531, the flexible screen 6, the left casing 7, and the right casing 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of some, but not all, embodiments of the disclosure and are not to be considered as limiting the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "both ends", "both sides", "bottom", "top", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," "upper," "lower," "primary," "secondary," and the like are used for descriptive purposes only and may be used for purposes of simplicity in more clearly distinguishing between various components and not to indicate or imply relative importance.

In the description of the present disclosure, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are used in a broad sense and can be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected through the inside of two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

Referring to fig. 1-12, a folding mechanism and a fold-in flexible screen 6 mobile terminal according to the present disclosure are schematically shown. This folding mechanism includes middle support 1, synchronous counter-rotating mechanism 4, left rotating member 2 and right rotating member 3 and middle support 1 rotatable coupling, middle support 1 can guarantee through synchronous counter-rotating mechanism 4 that left rotating member 2 and right rotating member 3 are synchronous counter-rotating, the axis of left rotating member 2 and the axis of right rotating member 3 are parallel, the axis of left rotating member 2 and the axis of right rotating member 3 all are located corresponding flexible screen 6, the axis of left rotating member 2 and the axis of right rotating member 3 are located the plane that flexible screen 6 was located promptly, make rotation in-process flexible screen 6 can not rise or descend, flexible screen 6 total length can not change etc.. The middle support 1 is provided with an elastic cam pressing mechanism 5 matched with the synchronous reverse rotation mechanism 4, and the elastic cam pressing mechanism 5 can provide torque force for the synchronous reverse rotation mechanism 4.

In the use, the left rotating part 2 and the right rotating part 3 rotate reversely, and the left rotating part 2 and the right rotating part 3 rotate synchronously and reversely through the synchronous reverse rotating mechanism 4, so that the flexible screen 6 can be opened and folded in a closed manner, the elastic cam pressing mechanism 5 can provide torsion for the synchronous reverse rotating mechanism 4, and the flexible screen 6 is more stable in an opened and folded state and a folded closed state. Along with the flexible screen 6 is folded inwards and closed, the axis of the left rotating component 2 and the axis of the right rotating component 3 are parallel and are positioned on the corresponding flexible screen 6, the synchronous reverse rotating mechanism 4, the left rotating component 2 and the right rotating component 3 can avoid the bending part of the flexible screen 6, the bending part of the flexible screen 6 is made to form a water drop shape, the bending part of the water drop-shaped flexible screen 6 is hidden in the folding mechanism, the flexible screen 6 cannot rise or fall, the total length of the flexible screen 6 cannot change, the flexible screen 6 cannot collide with the supporting structure, damage to the screen and the like is avoided, meanwhile, tension and pressure in the length direction of the screen cannot be caused, the flatness of the flexible screen 6 in the using process can be guaranteed, the flexible screen is opened, folding and the like are very convenient, and the stability and the reliability are high.

The left rotating part 2 comprises a left sliding arm 21, the right rotating part 3 comprises a right sliding arm 31, a first arc-shaped track 101 and a second arc-shaped track 102 are arranged on the middle support 1, the first arc-shaped track 101 is matched with the left sliding arm 21, the second arc-shaped track 102 is matched with the right sliding arm 31, the corresponding part of the left sliding arm 21 rotates along the first arc-shaped track 101, and the corresponding part of the right sliding arm 31 rotates along the second arc-shaped track 102. Left slide arm 21 has the first arc sliding part 211 with first arc track 101 matched with, right slide arm 31 has the second arc sliding part 311 with second arc track 102 matched with, second arc sliding part 311 can be two that the symmetry set up, first arc sliding part 211 is located between two second arc sliding parts 311, first arc track 101 also is located between two second arc tracks 102 that the symmetry set up, the atress is more even, and is more stable, reliable.

Middle support 1 includes first base 11, is provided with first fixed block 12 on the first base 11, and first fixed block 12 can adopt buckle connection, adhesive bonding, welded connection, screw connection etc. with first base 11, and first arc track 101 and second arc track 102 set up on first fixed block 12, and first arc track 101 and second arc track 102 integrated into one piece are on first fixed block 12 usually, and the structure is more firm, firm. Still be provided with the first apron 13 with first arc track 101 and second arc track 102 matched with on the first fixed block 12, first apron 13 can press the corresponding position of left slider arm 21 on first arc track 101 and press the corresponding position of right slider arm 31 on second arc track 102, can carry on spacingly to left slider arm 21 and right slider arm 31, it is more stable to guarantee left slider arm 21 and right slider arm 31, rotate reliably etc., first apron 13 can also support the flexible screen 6 of opening the exhibition flat state, cover and limit etc. to synchronous reverse slewing mechanism 4 and elastic cam hold-down mechanism 5.

The two ends of the middle bracket 1 are respectively provided with a left rotating part 2, a right rotating part 3, a synchronous reverse rotating mechanism 4 and an elastic cam pressing mechanism 5, namely the left rotating part 2, the right rotating part 3, the synchronous reverse rotating mechanism 4 and the elastic cam pressing mechanism 5 are symmetrically arranged in two sets, so that the structure is more stable and reliable. The middle part of middle support 1 is provided with first connecting plate 14, and the both ends of first connecting plate 14 cooperate with the one end of two elastic cam hold-down mechanism 5 respectively and are connected, limit etc. usually, and it is more convenient to operate, and the structure is more firm, reliable, and first connecting plate 14 also can support etc. to the flexible screen 6 of opening the exhibition flat state.

Synchronous counter-rotating mechanism 4 adopts gear mechanism, at least including left side gear 41 and right side gear 42, left side gear 41 can synchronous counter-rotation with right side gear 42, the axial one end setting of left side gear 41 and the axial one end of right side gear 42 are provided with respectively with the first cam 43 of elastic cam hold-down mechanism 5 matched with, two first cams 43 are along with left side gear 41 and right side gear 42 synchronous revolution respectively, first cam 43 can be integrated into one piece respectively on left side gear 41 and right side gear 42, the structure is more firm. The elastic cam pressing mechanism 5 includes a second cam 51 corresponding to the first cam 43 and a first elastic member 52 corresponding to the second cam 51, the second cam 51 is fixed in the circumferential direction and can move axially, and the first elastic member 52 can enable the second cam 51 to be elastically matched with the first cam 43. The first elastic member 52 may be a spring, or other suitable elastic blocks known in the art. In the using process, the left side gear 41 and the right side gear 42 synchronously and reversely rotate, the first elastic piece 52 enables the second cam 51 and the first cam 43 to be always in elastic fit, so that torsion is provided for the left side gear 41 and the right side gear 42, the flexible screen 6 is more stable in an opening and flattening state and a folding-in closing state, for example, under the opening and flattening state and the folding-in closing state, a certain external force needs to be applied to open and close, and the stability and the reliability are higher.

The synchronous counter-rotating mechanism 4 further comprises a left mounting plate 44 and a right mounting plate 45, a first extending sliding portion 411 is arranged on the left gear 41, a second extending sliding portion 421 is arranged on the right gear 42, a first sliding channel 441 matched with the first sliding portion 411 is arranged on the left mounting plate 44, the first sliding portion 411 is located in the first sliding channel 441 and can slide along the first sliding channel 441, a second sliding channel 451 matched with the second sliding portion 421 is arranged on the right mounting plate 45, and the second sliding portion 421 is located in the second sliding channel 451 and can slide along the second sliding channel 451. In the use process, left side gear 41 and right side gear 42 synchronous counter-rotation, first sliding part 411 slides along first slide 441 and second sliding part 421 slides along second slide 451 simultaneously, thereby make left side gear 41 slide and right side gear 42 slide for right mounting panel 44, be convenient for dodge the department of bending of flexible screen 6 in the folding closed state, support flexible screen 6 under opening the flat state of exhibition etc, left side gear 41 and right side gear 42 also can set up the optional position at middle support 1 length direction, it is more convenient to operate, the structure is compacter, and is stable, and the volume is littleer.

The synchronous counter-rotating mechanism 4 includes a plurality of transition gears 46, for example, two transition gears 46 are disposed between the left side gear 41 and the right side gear 42, the left side gear 41, the two transition gears 46 and the right side gear 42 are sequentially in transmission connection, that is, four gears are sequentially engaged, the two transition gears 46 are engaged, the left side gear 41 is engaged with the transition gear 46 close to the left side gear, the right side gear 42 is engaged with the transition gear 46 close to the right side gear, the first cams 43 may be disposed at two axial ends of the left side gear 41, two axial ends of each transition gear 46 and two axial ends of the right side gear 42, the left side gear 41, the two transition gears 46 and the right side gear 42 are respectively and rotatably connected to four first rotating shafts 53, the four first rotating shafts 53 are disposed in parallel, each first rotating shaft 53 is provided with two second cams 51 corresponding to the two first cams 43 one by one, and at least one first elastic member 52 matched with one of the second cams 51, the first cam 43 is a spring, the spring is sleeved on the first rotating shaft 53, and the two second cams 51 are respectively matched with the two first cams 43 in an elastic manner. The four second cams 51 can be integrated into one piece or be connected as an organic whole, form the cam group promptly, and the second cam 51 of being convenient for is fixed with first pivot 53 circumferencial direction, and two cam groups cooperate with the first cam 43 at four gear both ends respectively, and the structure is simpler, stable, and the effect is better. The first cover plate 13 can also cover and limit the synchronous counter-rotating mechanism 4 and the elastic cam pressing mechanism 5.

Taking a first rotating shaft 53 rotationally connected with the left side gear 41 as an example, the first elastic member 52, one of the second cams 51, the left side gear 41 and the other second cam 51 are sequentially arranged along the axial direction of the first rotating shaft 53, the first cams 43 at two ends of the left side gear 41 are respectively matched with the two second cams 51, one end of the first elastic member 52 is pressed against one end of the second cam 51 close to the first elastic member, the other end of the first elastic member 52 is pressed against the first limit block 531, the first limit block 531 can be fixed by using a shaft retaining ring, one end of the other second cam 51 far from the left side gear 41 is pressed against a shaft shoulder of the first rotating shaft 53, two ends of the first rotating shaft 53 are respectively connected with the first connecting plate 14 and the first cover plate 13, and the first connecting plate 14 and the first cover plate 13 are respectively provided with a hole body matched with the first rotating shaft 53. When the left gear 41 rotates, the first cams 43 at the two ends of the left gear 41 rotate synchronously, the first cams 43 interact with the second cams 51, the moving directions of the two second cams 51 are opposite, one of the second cams 51 moves axially and compresses the first elastic part 52 at the same time, the other second cam 51 drives the first rotating shaft 53 to move axially together through a shaft shoulder on the first rotating shaft 53, and meanwhile, the first elastic part 52 can also be compressed, the first elastic part 52 always has corresponding pressure on the two second cams 51, so that double torsion can be provided for the left gear 41, the stress is more uniform, and the effect is better. In addition, each first rotating shaft 53 may also be provided with two first elastic members 52, the first elastic members 52 are correspondingly engaged with the second cams 51, and the first limit blocks 531 on the four first rotating shafts 53 may also be integrally formed or connected as a whole, referring to the second cams 51.

The utility model provides an use 6 mobile terminal of flexible screen of infolding of above-mentioned folding mechanism, includes flexible screen 6 and settles the left side casing 7 and the right side casing 8 of flexible screen 6, and middle support 1 is located between left side casing 7 and the right side casing 8, and the inboard of left side casing 7 and the inboard of right side casing 8 are provided with respectively and flexibly screen 6 matched with cell body, and flexible screen 6's two halves are fixed respectively in the cell body of left side casing 7 and right side casing 8 through modes such as gluing. The left rotating component 2 is connected with the left casing 7, the left sliding arm 21 can be connected with the left casing 7 by adopting fasteners such as screws, the right rotating component 3 is connected with the right casing 8, the right sliding arm 31 can be connected with the right casing 8 by adopting fasteners such as screws, the synchronous reverse rotating mechanism 4 is respectively connected with the left casing 7 and the right casing 8, the left mounting plate 44 can be connected with the right casing 8 by adopting fasteners such as screws, and the right mounting plate 45 can be connected with the right casing 8 by adopting fasteners such as screws. The synchronous reverse rotation mechanism 4 of the folding mechanism can enable the left rotation part 2 and the right rotation part 3 to synchronously and reversely rotate, so that the left casing 7 and the right casing 8 synchronously and reversely rotate, and the flexible screen 6 can be unfolded and folded inwards to be closed.

The inboard of left side casing 7 and the inboard of right side casing 8 are provided with respectively with folding mechanism matched with cell body, and folding mechanism is located the below of flexible screen 6, and when opening the exhibition flat use, folding mechanism hides inside the product completely, and when the infolding is closed back, only left side casing 7, right side casing 8 and middle support 1's first base 11 expose, and is safer, stable, reliable.

Compared with the prior art, the advantage of this disclosure has: the synchronous reverse rotation mechanism 4 of the folding mechanism can enable the left rotation part 2 and the right rotation part 3 to synchronously and reversely rotate, so that the left casing 7 and the right casing 8 synchronously and reversely rotate, and the flexible screen 6 can be opened and flattened and folded inwards to be closed; the left gear 41 slides relative to the left mounting plate 44 and the right gear 42 slides relative to the right mounting plate 45, so that the bent part of the flexible screen 6 is convenient to avoid in the inward-folded closed state, the flexible screen 6 is convenient to support in the opened and flattened state, and the like, and the left gear 41 and the right gear 42 can also be arranged at any position of the middle bracket 1 in the length direction, so that the structure is more compact and stable, and the volume is smaller; the elastic cam pressing mechanism 5 can provide double torsion for the left gear 41 through the first elastic piece 52 and the second cam 51 positioned at two ends of the gear, so that the stress is more uniform, and the flexible screen 6 is more stable in an opening and flattening state and a folding and closing state; along with the inward folding and closing of the flexible screen 6, the axis of the left rotating part 2 and the axis of the right rotating part 3 are parallel and are positioned on the corresponding flexible screen 6, the synchronous reverse rotating mechanism 4, the left rotating part 2 and the right rotating part 3 can avoid the bending part of the flexible screen 6, so that the bending part of the flexible screen 6 is in a water droplet shape, the flexible screen 6 cannot rise or fall, the total length of the flexible screen 6 cannot change, the flexible screen 6 cannot collide with a supporting structure, the damage to the screen and the like are avoided, meanwhile, the tensile force and the pressure in the length direction of the screen cannot be caused, and the flatness of the flexible screen 6 in the opening and using process can be ensured; therefore, the operation of opening, folding and the like is convenient, the stability and the reliability are high, the service life of the product is prolonged, the flexible screen 6 can be better applied to various mobile terminals such as mobile phones and tablet computers, and the application and the development of the product are expanded.

The foregoing is directed to embodiments of the present disclosure, which are provided for illustration only and not for limitation, and it is understood that modifications and substitutions may be made by those skilled in the art without departing from the spirit of the disclosure and all such modifications and substitutions are to be considered within the scope of the appended claims. In this case all the details may be replaced with equivalent elements, and the materials, shapes and dimensions may be any.

Claims

1. Folding mechanism, its characterized in that, including middle support (1) and with middle support (1) rotatable connection's left side rotating member (2) and right rotating member (3), middle support (1) can make through synchronous counter rotating mechanism (4) left side rotating member (2) with right side rotating member (3) synchronous counter rotating, the axis of left side rotating member (2) with the axis of right side rotating member (3) is parallel and all is located corresponding flexible screen (6), be provided with on middle support (1) with synchronous counter rotating mechanism (4) matched with elasticity cam hold-down mechanism (5), elasticity cam hold-down mechanism (5) can for synchronous counter rotating mechanism (4) provide torsion, along with flexible screen (6) infolding is closed, synchronous counter rotating mechanism (4), The left rotating component (2) and the right rotating component (3) can avoid the bending part of the flexible screen (6).

2. The folding mechanism according to claim 1, characterized in that said left rotating part (2) comprises a left sliding arm (21) and said right rotating part (3) comprises a right sliding arm (31), said intermediate support (1) being provided with a first arched track (101) cooperating with said left sliding arm (21) and a second arched track (102) cooperating with said right sliding arm (31).

3. The folding mechanism according to claim 2, characterized in that the intermediate bracket (1) comprises a first base (11), a first fixing block (12) is arranged on the first base (11), the first arc-shaped rail (101) and the second arc-shaped rail (102) are arranged on the first fixing block (12), and a first cover plate (13) which is matched with the first arc-shaped rail (101) and the second arc-shaped rail (102) is arranged on the first fixing block (12).

4. A folding mechanism according to claim 3, characterized in that said left sliding arm (21) has a first arc-shaped sliding portion (211) and said right sliding arm (31) has two second arc-shaped sliding portions (311) symmetrically arranged, said first arc-shaped sliding portion (211) being located between said two second arc-shaped sliding portions (311).

5. The folding mechanism according to claim 1, characterized in that the two ends of the middle bracket (1) are respectively provided with the left rotating part (2), the right rotating part (3), the synchronous reverse rotating mechanism (4) and the elastic cam pressing mechanism (5), and the middle part of the middle bracket (1) is provided with a first connecting plate (14).

6. The folding mechanism according to any of claims 1 to 5, characterized in that said synchronous counter-rotation mechanism (4) comprises at least a left gear (41) and a right gear (42), said left gear (41) and said right gear (42) being capable of synchronous counter-rotation, one axial end of said left gear (41) and one axial end of said right gear (42) being respectively provided with a first cam (43) cooperating with said elastic cam pressing mechanism (5), two of said first cams (43) rotating synchronously with said left gear (41) and said right gear (42), respectively.

7. The folding mechanism according to claim 6, characterized in that the elastic cam pressing mechanism (5) comprises a second cam (51) corresponding to and cooperating with the first cam (43) and a first elastic member (52) corresponding to and cooperating with the second cam (51), the second cam (51) is fixed in the circumferential direction and can move axially, and the first elastic member (52) can enable the second cam (51) to be elastically engaged with the first cam (43).

8. The folding mechanism according to claim 7, characterized in that the synchronous counter-rotating mechanism (4) further comprises a left mounting plate (44) and a right mounting plate (45), wherein a first extending sliding portion (411) is provided on the left side gear (41), a second extending sliding portion (421) is provided on the right side gear (42), a first sliding channel (441) matched with the first sliding portion (411) is provided on the left mounting plate (44), and a second sliding channel (451) matched with the second sliding portion (421) is provided on the right mounting plate (45).

9. The folding mechanism according to claim 8, wherein two transition gears (46) are disposed between the left side gear (41) and the right side gear (42), the left side gear (41), the two transition gears (46) and the right side gear (42) are sequentially connected in a transmission manner, the left side gear (41), the two transition gears (46) and the right side gear (42) are respectively connected to four first rotating shafts (53) in a rotating manner, the first cams (43) are respectively disposed at two axial ends of the left side gear (41), two axial ends of each transition gear (46) and two axial ends of the right side gear (42), two second cams (51) corresponding to the two first cams (43) one to one are disposed on each first rotating shaft (53), and the first elastic members (52) are at least matched with one of the second cams (51), the first elastic piece (52) is a spring sleeved on the first rotating shaft (53), and the two second cams (51) are respectively in elastic fit with the two first cams (43).

10. A folding-in flexible screen mobile terminal applying the folding mechanism of any one of the above claims 1 to 9, it is characterized by comprising the flexible screen (6), a left casing (7) and a right casing (8) for arranging the flexible screen (6), the middle bracket (1) is positioned between the left casing (7) and the right casing (8), the left rotating part (2) is connected with the left casing (7), the right rotating part (3) is connected with the right casing (8), the synchronous reverse rotation mechanism (4) is respectively connected with the left casing (7) and the right casing (8), the right rotating part (3), the right rotating part (3) and the synchronous reverse rotating mechanism (4) can enable the left casing (7) and the right casing (8) to synchronously rotate reversely so that the flexible screen (6) can be opened, flattened and folded inwards to be closed.