CN218582054U - Folding apparatus - Google Patents

Abstract

A folding device comprises a first shell, a second shell, a back cover, a hinge mechanism and a flexible screen assembly, wherein the hinge mechanism is fixed in the back cover, the two transverse sides of the hinge mechanism are respectively hinged with the first shell and the second shell, the first shell and the second shell respectively comprise a supporting part and an installation part positioned on the inner side of the supporting part, and the hinge mechanism comprises a fixed seat fixed in the back cover, a connecting seat fixed on the installation part of the first shell and the second shell, a connecting rod and a hinge movably hinged on the fixed seat and the connecting seat, and a screen protection plate movably interfered with the fixed seat and the hinge; the folding equipment space of this application utilizes rationally, and the equipment is easy.

Description

Folding apparatus

Technical Field

The present application relates to the field of communications electronics, and more particularly, to a folding device.

Background

The folding mobile phone is a current hot product, and various manufacturers have released folding mobile phone products, but the folding mobile phone has the problems of easy screen damage and short service life due to the flexible screen performance and the hinge performance. The technical development of the flexible screen at present is not enough to fold at will, but the flexible screen needs to be kept to fold with a certain radian, and the flexible screen is kept to the same length as the folding state in the unfolding state, so that the water drop-shaped folding state appears, but the prior art does not have effective holding support to the water drop-shaped folding flexible screen, and the problem of easy damage also exists.

Moreover, the hinge structure is very complicated, and there are many components, which results in high cost and poor performance stability.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a folding apparatus that is stable in performance, easy to assemble, and can effectively protect a flexible screen.

In order to solve the above technical problems, the present application provides a folding device, which comprises a first housing, a second housing, a back cover, a hinge mechanism fixed in the back cover and having two lateral sides hinged to the first housing and the second housing respectively, and a flexible screen assembly, the first casing and the second casing both comprise a supporting part and a mounting part positioned on the inner side of the supporting part, the hinge mechanism comprises a fixed seat fixed in the back cover, a connecting seat fixed on the mounting parts of the first shell and the second shell, a connecting rod and a hinge which are movably hinged on the fixed seat and the connecting seat, and a screen protection plate movably interfered with the fixed seat and the hinge, the upper side surface of the screen protection plate is a supporting surface for fixing the flexible screen assembly, the screen protection plate also comprises at least one pair of first convex shaft parts formed by downwards protruding from the outer end of the lower side surface of the screen protection plate and a third convex shaft part formed by downwards protruding from the inner side of the lower side surface of the screen protection plate, the third convex shaft part is positioned between the pair of first convex shaft parts, the first convex shaft parts are provided with a pair of first track grooves, a third track groove is arranged on the third convex shaft part, the two first track grooves are coupled with the connecting seat, the third track groove is connected with the hinge through a bolt strip, a limit edge is formed at the edge of the outer end of the hinge, the connecting seat comprises a first connecting seat and a second connecting seat, a limiting groove coupled with the limiting edge is arranged at the position of the first connecting seat opposite to the second connecting seat, the supporting surface of the screen protection plate is in a horizontal supporting state, and when the hinge is folded, the hinge outwards pulls the lower side of the screen protection plate so that the pair of screen protection plates are in a shape of being wide at the bottom and narrow at the top.

Preferably, the first housing and the second housing further include an outer edge wall located outside the support portion and the mounting portion, and a pressing groove formed downward between the outer edge wall and an edge of an upper surface of the support portion, and the folding apparatus further includes an adhesive tape pressed into the pressing groove, and the adhesive tape at least partially covers an edge portion of the flexible screen assembly.

Preferably, the installation department is certainly the supporting part undercut forms, the cavity of installation electronic components is seted up to the supporting part downside, the horizontal both sides part of flexible screen subassembly is fixed in the supporting part upper surface, flexible screen subassembly middle part hug closely in the articulated mechanism upside is but unfixed, during the expansion state, back of the body lid and articulated mechanism accept in the installation department, the installation department of first shell and second shell hugs closely together, during fold condition, back of the body lid exposes in the external world, the articulated mechanism forms under the wide narrow space in the top, flexible screen subassembly middle part is folded into the water droplet form.

Preferably, the installation department includes the installation face, locates along vertical concave recess on the installation face and locate the arch in the recess ditch outside, the back of the body lid is including back of the body lid diapire, certainly back of the body lid diapire upwards extends the periphery wall that forms and passes through back of the body lid diapire and the cavity of acceping that the periphery wall encloses and establishes, back of the body lid diapire mid portion is sunken upwards, during the expansion state, the mid portion correspondence of back of the body lid diapire is located the protruding top of first shell and second shell, the both sides part of back of the body lid diapire is held in the recess ditch of first shell and second shell.

Preferably, when folding equipment is in fold condition, flexible screen assembly including fixed laminating in the supporting part is surperficial on the plane screen section, be located the big arcwall screen section of bending position department and certainly big arcwall screen section rounding off extremely the shrink screen section of plane screen section, hinge mechanism is still including supporting the screen protection board that shrink screen section extends or deforms according to predetermined orbit.

Preferably, the first connecting seat and the second connecting seat are respectively provided with a track arc with the same orientation, the first track groove of the screen protection plate accommodates the track arc so that the track arc can rotate in the first track groove, the first track arc is arranged at the outer edge of the first longitudinal end of the first connecting seat, the second track arc is arranged at the inner side of the second longitudinal end of the second connecting seat, the inner side of the second longitudinal end of the second connecting seat is provided with a rotation avoiding space, and the second track arc is arranged on the longitudinal outer side wall of the rotation avoiding space.

Preferably, the first end of indulging of first connecting seat is equipped with and holds the space is kept away in the rotation of connecting rod one end, and first indulging the end rotate and keep away the vertical both sides in space and seted up the keyhole, connecting rod one end pass through the gib be spacing in the keyhole, the gib is followed the first end outside of indulging of first connecting seat inserts, first connecting seat is formed with perpendicular roof beam along horizontal inboard extension, the second connecting seat is formed with another perpendicular roof beam along horizontal inboard extension, and is a pair of spacing groove is seted up on two perpendicular roof beams, the spacing limit of hinge inserts the spacing inslot removes.

Preferably, the hinge includes a fixed shaft end rotatably limited on one side of the fixed seat, a matching plate formed by extending from the fixed shaft end, the limiting edges formed on two longitudinal sides of the matching plate, an opening formed in the middle of the matching plate, a convex hull formed by inward protruding from the matching plate on two sides of the opening, and a rotating hole formed by longitudinally penetrating through the convex hull.

Preferably, the limiting edges on two sides of the matching plate are inserted into the limiting grooves of the first connecting seat and the second connecting seat, the first connecting seat and the second connecting seat further comprise matching parts and matched parts, and the matching parts and the matched parts are locked and fixed through bolts.

Preferably, third protruding shaft portion card on the screen protection board is gone into in the opening of cooperation board, will through the gib block third track groove combine in the rotation hole on the convex closure, third track inslot side position with distance between the screen protection board inboard surface is less than third track groove outside position with distance between the screen protection board inboard surface.

This application folding equipment's first shell sets up the supporting part with the second shell at horizontal outside internal surface, is less than in horizontal inboard setting the installation department on supporting part surface, and the downside of supporting part is then processed into the cavity that loads components and parts, during the expansion, the direct rising that makes progress of hinge mechanism gets into in the installation department, effectively solved hinge mechanism and back of the body lid accomodate the problem.

The connecting seat is designed into a first connecting seat and a second connecting seat in a split mode, the screen protection plate, the hinge and the connecting rod are assembled on the connecting seat, the hinge and the screen protection plate are easy to assemble with the connecting seat and the screen protection plate, and if track arcs corresponding to a pair of first track grooves of the screen protection plate are arranged on the first connecting seat and the second connecting seat respectively, pushing is simple; the bolt strip between the hinge and the third rail groove of the screen protection plate is inserted more easily.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

FIG. 1 is a perspective view of a folding apparatus of the present application in an open position;

FIG. 2 is a perspective view of the folding apparatus of the present application in a closed position;

FIG. 3 is an exploded perspective view of the folding apparatus of the present application in an open position;

FIG. 4 is a perspective view of the housing of the folding apparatus of the present application;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 6 is an enlarged partial view of the dotted circle shown in FIG. 5;

FIG. 7 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 8 is an enlarged partial view of the dotted circle shown in FIG. 7;

FIG. 9 is a perspective view of the hinge mechanism of the present application in a folded state and an enlarged view of a portion thereof;

FIG. 10 is a perspective view of the back cover of the folding apparatus of the present application;

FIG. 11 is a perspective view of the hinge mechanism of the present application in an open position;

FIG. 12 is an exploded perspective view of the hinge mechanism of the present application in an open position;

FIG. 13 is a perspective view of a support plate of the hinge mechanism of the present application;

FIG. 14 is a perspective assembly view of the hinge and damping mechanism of the hinge mechanism of the present application;

FIG. 15 is an exploded perspective view of the hinge and damping mechanism of the hinge mechanism of the present application;

FIG. 16 is an exploded perspective view of the hinge of the present application;

figure 17 is a perspective view of a hinge portion component part of the present application;

figure 18 is a perspective view of another angle of the hinge portion components of the present application;

FIG. 19 is a perspective view of the mounting block of the hinge of the present application;

FIG. 20 is a perspective view of another angle of the mounting block of the hinge of the present application;

FIG. 21 is a perspective assembly view of the damping mechanism of the present application;

FIG. 22 is an exploded perspective view of the damping mechanism of the present application;

fig. 23 to 25 are sectional views taken along the dotted lines C-C, D-D, E-E of fig. 9, respectively.

Description of the figures

A flexible screen assembly-10; a planar screen segment-11; a large arc screen section-12; contracting the screen section-13; -a housing-20; a first housing-201; a second housing-202; a third housing-203; a support portion-21; a support surface-211; an outer peripheral wall-212; a pressure groove-213; a cavity-214; a barrier-215; a mounting portion-22; mounting surface-221; indentation trench-222; a projection-223; a fixing hole-224; avoidance slot-225; a limiting groove-226; a back cover-23; a back cover bottom wall-231; an outer peripheral wall-232; a containing cavity-233; a cable channel-234; -a fixation hole-235; a cover plate-30; adhesive tape-40; an articulation mechanism-A; a screen protection panel-50; a plate body-51; a support cambered surface-511; bevel-515; a first boss portion-52; a first track groove-521; a second camshaft portion-53; a second track groove-531; a third camshaft portion-54; a third track groove-541; a first notch-512; a second notch-513; a third notch-514; a hinge-60; a lower fixed seat-61; a lower arc surface-611; a middle boss-612; screw-613, 614,623,624; pilot hole-615; a first shaft hole-616; second shaft hole-617; an upper fixed seat-62; a middle recess-621; upper cambered surface-622; a positioning column-625; a convex column-626; a connecting rod-63; a rotating arc piece-631; a swivel arm-632; shaft end-633; a through-hole-634; a bending part-635; a bolt-636; a first connection seat-64; a second connecting seat-65; connecting seat body-641,651; locator post-642, 652; fixing holes-643, 653; a rotation avoidance space-644, 655; orbital arc-645, 656; keyhole-646; fitting part-647; beam-6471; vertical beam-6472; a first limiting groove-6473; a limiting wall-6474; lockhole-6475; a mated portion-654; a second limit groove-6541; mating top-6542; slotting-6543; keyhole-6544; a damping mechanism-70; a main shaft-71; shaft body-711, 721; a clamp spring mounting end-712; a latch-713; a limiting rotation end-714; gear-715, 722; a secondary shaft-72; a fixed plate-73; plate body-731; a first projection-732; shaft holes-733, 734; a hinge-74; a fixed shaft end-741; a fixed shaft hole-742; bending the connecting part-743; a mating plate-744; an opening-745; convex hull-746; rotating hole-747; a limiting edge-748; spacing fixed blocks-75; spacer block-76; partitions-751, 761; shaft hole-752, 762; a spacer-753; screw hole-754; cam teeth-763, 772,748; a fixed sleeve-77; keyhole-771; a spring-78; a clamp spring-79; middle hinge-80.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the present application, the X direction shown in fig. 1 is taken as the lateral direction, and the Y direction is taken as the longitudinal direction.

Referring to fig. 1 to 9, the folding apparatus of the present application includes a housing 20 having a first housing 201 and a second housing 202, a hinge mechanism a for hinge-connecting the first housing 201 and the second housing 202, and a flexible screen assembly 10 disposed on inner surfaces of the first housing 201 and the second housing 202. When the first shell 201 and the second shell 202 are in an open state of being parallel to each other by 180 degrees, the flexible screen assembly 10 is unfolded to display; when the first housing 201 and the second housing 202 are folded, the flexible screen assembly 10 is in a folded state.

The flexible screen assembly 10 comprises a flexible screen and a gasket, at least part of the flexible screen assembly 10 is fixed on the surfaces of the first shell 201 and the second shell 202, and the flexible screen assembly 10 is in a separation unfixed state at the hinged position of the first shell 201 and the second shell 202.

The housing 20 includes the first housing 201 and the second housing 202 which are symmetrically designed and a third housing 203 (back cover 23) for fixedly loading the hinge mechanism a. The first housing 201 and the second housing 202 each include a supporting portion 21 and a mounting portion 22 located at one lateral side of the supporting portion 21. The first housing 201 is adjacent to the mounting portion 22 of the second housing 202, and is attached to the second housing 202 in a parallel expanded state of the first housing 201. The supporting portion 21 includes a supporting surface 211 located at an upper side, a cavity 214 opened at a lower side of the supporting surface 211, and outer edge walls 212 surrounding the outer periphery of the supporting portion 21 and the two longitudinal ends of the mounting portion 22. The inner side of the outer edge wall 212 is downwardly provided with a pressing groove 213. The rubber strip 40 is inserted into the pressing groove 213, and the rubber strip 40 is at least partially pressed against the edge of the flexible screen assembly 10 to prevent the edge of the flexible screen assembly 10 from cracking.

The supporting surface 211 is a planar structure, and the pressing groove 213 is opened between the supporting surface 211 and the outer edge wall 212. The outer side of the cavity 214 is open, and the cavity 214 is used for mounting electronic components, such as a mobile phone motherboard. The cavity 214 is covered with the cover plate 30, the cover plate 30 closes the cavity 214 and the outer surface of the cover plate 30 is flush with the outer side surfaces of the first shell 201 and the second shell 202.

The inner side surface of the mounting portion 22 is recessed compared to the supporting surface 211, and the cavity 214 and the upper side space of the mounting portion 22 at least partially overlap in the transverse direction. A partition 215 is formed between the mounting portion 22 and the cavity 214, and the supporting portion 21 and the mounting portion 22 are connected into a whole through the partition 215. The mounting portion 22 includes a mounting surface 221 located at the inner side, a recessed groove 222 longitudinally formed at the outer edge of the mounting surface 221, and a protrusion 223 longitudinally formed at the outer side of the recessed groove 222. The partition 215 is further provided with a plurality of connecting holes for connecting the installation part 22 and the cavity 214 for laying cables and the like. The installation face 221 has transversely seted up at least three groove 225 of dodging along transversely, still seted up a plurality of fixed orificess 224 on the installation face 221, jube 215 exposes installation portion 22 one side has still seted up a plurality of spacing grooves 226.

As shown in fig. 10, the third housing 203 (back cover 23) is used for assembling and fixing the hinge mechanism a and the middle hinge 80, and the mounting portions 22 of the first housing 201 and the second housing 202 are respectively hinged with the hinge mechanism a fixed in the back cover 23. The back cover 23 includes a back cover bottom wall 231, an outer peripheral wall 232 formed by extending the outer periphery of the back cover bottom wall 231 in an arc shape, and a containing cavity 233 formed by enclosing the back cover bottom wall 231 and the outer peripheral wall 232. The bottom wall 231 of the back cover protrudes out of the receiving cavity 233 to form a plurality of fixing holes 235, and the middle portion of the back cover 23 is further provided with a cable channel 234.

The back cover 23 is exposed to the outside when the first and second housings 201 and 202 are in the folded state; when the first housing 201 and the second housing 202 are in the expanded state, the back cover 23 is accommodated in the mounting portion 22. The back of the body lid diapire 231 has the arc structure so that it with the sunken ditch 222 and the arch 223 of installation department 22 match each other, promptly the middle upwards sunken of back of the body lid diapire 231, both sides are the arcwall face, and the arc part in back of the body lid diapire 231 both sides is held in sunken ditch 222, middle upwards sunken part corresponding to arch 223.

Referring to fig. 11 and 12, the hinge mechanism a of the folding apparatus of the present application includes a pair of screen protection panels 50, a hinge 60 for hinge-connecting the pair of screen protection panels 50, a damping mechanism 70, and an intermediate hinge 80. The hinge 60 is integrated with the damping mechanism 70 into a unitary structure. A hinge 60 and a damping mechanism are respectively connected to both ends in the longitudinal direction of a pair of screen protection panels 50 of a folding apparatus, and a middle hinge is connected to the middle of the pair of screen protection panels 50. The hinge mechanism a is fixed in the receiving cavity 233 of the back cover 23. The other end of the hinge mechanism a is fixed to the mounting portions 22 of the first and second housings 201 and 202.

With continuing reference to fig. 6, 9, 13, 17 and 18, and with particular reference to fig. 6, when folded, the flexible panel assembly 10 includes a flat panel section 11 disposed parallel to each other, a large arc panel section 12 at a bent position, and a contracting panel section 13 connecting the flat panel section 11 and the large arc panel section 12. Big cambered surface screen section 12R angle of bending great in order to avoid losing the screen, and its horizontal width has the maximum width, shrink screen section 13 certainly big cambered surface screen section 12 wide position department is contract until two plane screen sections 11 are parallel relatively gradually, 13 middle zone sections of shrink screen section are the plane, and both sides have certain radian of bending. The screen protection plate 50 is used for supporting the bending state of the flexible screen assembly 10 and keeping the flexible screen assembly 10 in a drop-shaped bending state (as shown in fig. 6). The screen protection plate 50 includes a plate body 51 and a plurality of protruding shaft portions protruding from an outer side surface of the plate body 51. The two opposite inner sides of the plate bodies 51 of the pair of screen protection plates 50 in the folded state are support surfaces for supporting the retracted screen section 13 of the flexible screen assembly 10.

The upper edge of the supporting surface of the plate body 51 is provided with a supporting arc 511 which is bent outwards to correspond to the transition position of the contracted screen section 13 and the flat screen section 11, so as to realize smooth transition. The lower side of the outer side surface of the plate body 51 is provided with a slope 515 to play a role of avoiding. Two pairs of first protruding shaft portions 52, a pair of second protruding shaft portions 53, and a pair of third protruding shaft portions 54 are formed on the outer side surface of the plate body 51 in a protruding manner, a first track groove 521 is formed on the inner side of the first protruding shaft portion 52, second track grooves 531 are formed on two opposite side surfaces of the pair of second protruding shaft portions 53, and third track grooves 541 are formed in the pair of third protruding shaft portions 54 in a penetrating manner. The first protruding shaft portion 52 with the upper end of second protruding shaft portion 53 surpasss the upper end of plate body 51, and the first protruding shaft portion 52 with the second protruding shaft portion 53 surpasss the plate body 51 upside part is the state of outwards inclining so that the portion of surpassing can not surpass support cambered surface 511 and contact flexible screen subassembly 10. A pair of first protruding shaft portions 52 is respectively disposed at two longitudinal ends of the plate body 51, the first rail groove 521 is formed on the same surface of each pair of first protruding shaft portions 52, and the first rail groove 521 is an arc-shaped groove and is not open in the extending direction. The pair of second protruding shaft portions 53 is located between the two pairs of first protruding shaft portions 52, and the second protruding shaft portions 53 are located on the plate body 51 at positions substantially overlapping the first protruding shaft portions 52 in a projection in the longitudinal direction. The upper end of the second track groove 531 on the second protruding shaft portion 53 is opened to facilitate the installation of the intermediate hinge 80, and a pair of the second track grooves 531 on the second protruding shaft portion 53 are oppositely disposed. The third protruding shaft 54 protrudes outward to a height greater than the first protruding shaft 52 and the second protruding shaft 53, and the third track groove 541 longitudinally penetrates through the third protruding shaft 54 and has a track stroke greater than the first track groove 521. The two third protruding shaft portions 54 are respectively located between the two pairs of first protruding shaft portions 52, and the third protruding shaft portions 54 are close to the lower side of the plate body 51.

The lower side of the plate body 51 is further provided with a first notch 512 between each pair of first protruding shaft portions 52, a third notch 514 corresponding to the third protruding shaft portion 54, and a second notch 513 corresponding to the second protruding shaft portion 53. The notch structure is mainly used for avoiding positions.

As shown in fig. 14 to fig. 20, the hinge 60 includes a lower fixing seat 61, an upper fixing seat 62, a connecting seat (the connecting seat includes a first connecting seat 64 and a second connecting seat 65 combined together) fixed in the mounting portion 22 of the first housing 201 or the second housing 202, a connecting rod 63 with two ends respectively hinged between the connecting seat 64, the lower fixing seat 64 and the upper fixing seat 65, the screen protection plate 50, and a hinge 74 hinged between the screen protection plate 50 and the back plate 23.

The lower fixing base 61 includes a pair of lower arc surfaces 611, a middle boss 612 located between the two pairs of lower arc surfaces 611 and separating the two pairs of lower arc surfaces 611, and a plurality of screw holes 613,614 penetrating through the lower fixing base 64. The screw holes 613,614 include four corners of the lower fixing base 61, a longitudinal middle outer position, and the like. Meanwhile, the lower fixing seat 61 is further provided with positioning holes 615 in the middle of the two longitudinal ends. The inner side of the lower arc surface 611 is flush with the middle boss 612, and the outer side of the lower arc surface 611 protrudes out of the outer edge of the lower fixed seat 61, so that an arc structure is formed. The lower fixing base 61 has a pair of first shaft holes 616 on a side facing the damping mechanism 70 and a pair of second shaft holes 617 on both sides of the first shaft holes 616, respectively, and the outer sides of the second shaft holes 617 are opened to be in an open state.

The upper fixing base 62 includes a middle concave portion 621 matching with the middle boss 612, a convex column 626 located at two lateral sides of the middle concave portion 621, an upper arc surface 622 formed on the convex column 626 and matching with the lower arc surface 611, screw holes 623 and 624, and a positioning column 625 corresponding to the positioning hole 615. The upper fixing seat 62 and the lower fixing seat 61 are matched with each other and fixed together by bolts, and after assembly, the lower arc surface 611 and the upper arc surface 622 are matched with each other to form an arc groove structure for rotating one end of the connecting rod 63. The upper fixing base 62 and the lower fixing base 61 are fixed in the fixing hole 235 of the back cover 23 by bolts, and the back cover 23 is also provided with positioning posts (not numbered) corresponding to the positioning holes 615 for positioning.

The connecting rod 63 includes a rotating arc piece 631 limited in an arc groove structure between the upper arc surface 622 and the lower arc surface 611, a bending portion 635 formed by bending the end of the rotating arc piece 631 outwards, a rotating arm 632 formed by extending the bending portion 635 outwards, a shaft end 633 formed at the free end of the rotating arm 632, and a through hole 634 longitudinally passing through the shaft end 633. A bolt 636 is inserted into the through hole 634, the shaft end 633 rotates around the bolt 636, and two ends of the bolt 636 are limited on the connecting seat 64. The rotating arc 631 rotates in the arc groove structure to unfold or fold the pair of screen protection panels and the first and second housings 201 and 202. Each link 63 includes two rotating arc tabs 631 at a first end and corresponds to a pair of arc slot configurations located on the same lateral side.

The connecting seat includes a first connecting seat 64 and a second connecting seat 65 that are independent of each other, the first connecting seat 64 includes a connecting seat body 641 fixed on the mounting portion 22, a positioning post 642 matched with the positioning hole on the mounting portion 22, a fixing hole 643 penetrating the connecting seat body 641 and locked with the fixing hole 224 on the mounting portion 22 by a bolt, a rotation avoiding space 644 opened on the inner side of one longitudinal end of the connecting seat body 641, a bolt hole 646 penetrating two longitudinal side walls of the rotation avoiding space 644, a track arc 645 formed by extending from the outer longitudinal end of the connecting seat body 641, and a matching portion 647 located at the other longitudinal end of the connecting seat body 641. The fitting part 647 includes a cross beam 6471 formed by longitudinally extending from a top wall of the connecting seat body 641, a vertical beam 6472 formed by longitudinally extending from one side of the connecting seat body 641 along a vertical direction, a first limiting groove 6473 formed on a wall surface of the vertical beam 6472, limiting walls 6474 formed by downwardly extending from two transverse sides of the cross beam 6471, and locking holes 6475 vertically penetrating through the cross beam 6471.

The second connecting seat 65 includes a connecting seat body 651 fixed on the mounting portion 22, a positioning post 6452 matched with the positioning hole on the mounting portion 22, a fixing hole 653 penetrating through the connecting seat body 651 and locked with the fixing hole 224 on the mounting portion 22 by a bolt, a rotating clearance space 655 provided on the inner side of the longitudinal end of the connecting seat body 651, a to-be-fitted portion 654 fitted with the fitting portion 647 of the first connecting seat 64, and a track arc 656 extending from one side wall surface of the longitudinal direction of the rotating clearance space 655 into the rotating clearance space 655. The engaged portion 654 includes a vertical beam 6545 opposed to the vertical beam 6472 of the first connecting seat 64, a second limit groove-6541 opened in the wall surface of the vertical beam 6545, and an engaging top portion 6542 located at the top and engaged with one longitudinal end of the cross beam 6471. A locking hole 6544 is formed in the matching top 6542, and the locking hole 6544 is locked with the locking hole 6475 on the cross beam 6471 through a bolt. A slot 6543 is provided between the mating top 6542 and the upright beam 6545 so that the retaining wall 6474 receives the mating top 6542 for positioning.

The hinge 74 is rotatably retained in the back cover 23 by a main shaft 71, and the hinge 74 includes a fixed shaft end 741 fixed to the main shaft 71, a bent connecting portion 743 bent outward from the fixed shaft end 741, a mating plate 744 formed by extending from the bent connecting portion 743, an opening 745 formed in the mating plate 744, a convex protrusion 746 formed by protruding from the inner side of the mating plate 744 on both sides of the opening 745 in the longitudinal direction, a rotation hole 747 formed by penetrating the two convex protrusions 746 in the longitudinal direction, and retaining edges 748 formed on both sides of the mating plate 744 in the longitudinal direction.

The hinge 60 assembly process of the present application is as follows:

the shaft end 633 of the connecting rod 63 is limited in bolt holes 646 at two longitudinal sides of the rotation avoiding space 644 through a bolt strip 636, and the bolt strip 636 is inserted into one bolt hole 646, the shaft end 633 and the other bolt hole 646 from one longitudinal side; inserting the limit edge 748 of the hinge 74 into the first limit groove 6473 of the first connecting seat 64; the first track groove 521 of the first protruding shaft part 52 of the screen protection plate 50 is sleeved outside the track arc 645 of the longitudinal outer side of the first connecting seat 61, the third protruding shaft part 54 of the screen protection plate 50 is accommodated in the opening 745 of the hinge 74, and the bolt 636 is inserted from the rotating hole 747 of the protruding hull 746 of the hinge 74 and passes through the third track groove 541 of the third protruding shaft part 54; the second connecting seat 65 is pushed to the lower side of the fitting part 647 of the first connecting seat 64 along the longitudinal direction, at this time, the other first protruding shaft part 52 of the screen protection plate 50 is accommodated in the rotation avoiding space 655, the first rail groove 521 is clamped outside the rail arc 656, the limiting wall 6474 of the first connecting seat 64 clamps the fitting top part 6542 of the second connecting seat 65, and is locked with the locking holes 6475 and 6544 of the fitted part 6542 through the locking of the bolt, and the two sides of the bolt hole 636 on the hinge 74 are limited by the first connecting seat 64 and the second connecting seat 65. The assembly of the intermediate hinge 80 to the hinge 60 is consistent with the assembly principle and is simpler and not described here. The lower fixing seat 61 and the upper fixing seat 62 are collectively referred to as a fixing seat, the fixing seat is fixed on the back cover 23 and is immovable, and the spindle 71 can be rotationally limited in the back cover 23 or on the fixing seat. The rotating arc 631 of the connecting rod 63 is clamped in the arc groove structure between the lower arc 611 of the lower fixing seat 61 and the upper arc 622 of the upper fixing seat 62, the fixing seat is locked in the accommodating cavity 233 of the back cover 23 through a bolt, the main shaft 71 is rotationally limited on the fixing seat, and the fixing shaft end 741 of the hinge 74 is fixed outside the main shaft 71; each of the screen protection plates 50 is assembled with a hinge 60 at both longitudinal ends thereof and with the middle hinge 80 at the middle thereof.

As shown in fig. 21 and 22, the damping mechanism 70 of the present application includes a pair of main shafts 71, a pair of auxiliary shafts 72 located between the pair of main shafts 71, gears 715 and 722 fixed to the pair of main shafts 71 and the auxiliary shafts 72, hinges 74 sleeved on the pair of main shafts 71, first spacers 76 sleeved on the pair of main shafts 71 and engaged with the hinges 74, a pair of first springs 78 sleeved on the pair of main shafts 71 and having one ends thereof abutted against the first spacers 76, first spacing fixed blocks 75 sleeved on the pair of main shafts 71 and having the other ends thereof abutted against the pair of first springs 78, fixing sleeves 77 respectively sleeved on the pair of main shafts 71 and fixed on the main shafts 71 by bolts, second spacers 76 sleeved on the pair of main shafts 71 and engaged with the fixing sleeves 77, a pair of second springs 78 sleeved on the pair of main shafts 77 and having one ends thereof abutted against the second spacers 76, a pair of second spacing fixed blocks 76 sleeved on the pair of main shafts 722 and having the other ends thereof abutted against the pair of second springs 78, a pair of second spacing fixed blocks 76, a pair of springs 71 and a pair of springs 73 and a pair of snap springs 73, and a pair of the gears 71 and a pair of the fixing springs 73, and a pair of the gears 79, and a pair of the fixing springs 73, a pair of the fixing plates 71, a pair of the fixing springs.

The spindle 71 includes a shaft body 711, a circlip mounting end 712 located at one end of the shaft body 711, a limiting rotation end 714 located at the other end of the shaft body 711 and limited in the second shaft hole 617 of the lower fixing seat 61, and a lock bolt 713 penetrating through the shaft body 711 and passing through and fixing the fixing sleeve 77. The auxiliary shaft 72 includes a shaft body 721, the gear 715 is fixed to the main shaft 71 and is not rotatable, the gear 722 is fixed to the shaft body 721 and is not rotatable, and one end of the shaft body 721 of the auxiliary shaft 72 is inserted into the first shaft hole 616 of the lower fixing base 61 for rotation. The gears 715 of the pair of main shafts 71 are engaged with the gears 722 of the adjacent auxiliary shafts 72, and the gears 722 of the pair of auxiliary shafts 72 are engaged with each other, so that the pair of hinges 74 rotate synchronously.

The fixing plate 73 includes a plate body 731, shaft holes 733 and 734 opened in the fixing plate 731 for the shaft bodies 711 and 721 of the main shaft 71 and the auxiliary shaft 72 to pass through, a protrusion 732 formed by extending from the middle of the upper side of the plate body 731 in the longitudinal direction, and a second protrusion 735 formed by extending from the outer side of the shaft hole 733 in the longitudinal direction. The plate 731 is planar toward the gears 711,722 and supports the main shaft 71 and the auxiliary shaft 72 for rotation through the shaft holes 733, 734. The second projection 735 abuts against a fixed shaft end 741 of the hinge 74, and the first projection 732 is spaced between the fixed shaft ends 741 of the pair of hinges 74.

The first and second spacers 76 include a partition 761, a shaft hole 762 longitudinally penetrating through both lateral sides of the partition 761, and a cam tooth 763 formed by protruding from the partition 761 along a peripheral edge of the shaft hole 762.

The hinge 74 further includes a fixing shaft hole 742 penetrating the fixing shaft end 741, and a cam tooth 749 formed on an edge of the fixing shaft hole 742. The cam teeth 749 on the fixed shaft end 741 side of the hinge 74 are engaged with the cam teeth 763 of the first spacer 76. The cam teeth are of a prior art structure, and the action principle of the cam teeth is not described in detail here.

The first and second spacing fixing blocks 75 include a partition plate 751, a shaft hole 752 penetrating both lateral sides of the partition plate 751 to fit the main shaft 71, and a spacing block 753 longitudinally extending from the middle of the partition plate 751. The spacing block 753 is vertically penetrated with a screw hole 754, and the spacing fixing block 75 is locked on the back cover 23 through the screw hole 754. The spacer 753 is positioned between a pair of the first springs or a pair of the second springs 78. The fixing sleeve 77 includes a bolt hole 771 and is immovably fixed on the main shaft 71 by the lock 713, and a cam tooth 772 is formed at one side of the fixing sleeve 77, which is far away from the first interval fixing block 75. In an embodiment, the fixing sleeve 77 may also be integrated with the first spacer fixing block 75.

The assembly process of the damping mechanism 70 described herein is as follows:

the gears 715 and 722 are respectively fixed on the first ends of the pair of main shafts 71 and the pair of auxiliary shafts 72; the fixing plate 73 is sleeved on one side of the gears 715 and 722 from the second end of the pair of the main shafts 71, and the second end of the shaft body 721 of the auxiliary shaft 72 is accommodated in a pair of shaft holes 734 in the middle of the fixing plate 73; sleeving the fixing shaft holes 742 of the fixing shaft ends 741 of the hinges 74 from the second end of the main shaft 71 and pushing the fixing shaft ends 741 to one side of the fixing plate 73, wherein the fixing shaft ends 741 abut against the second protruding portion 735 of the fixing plate 73; sleeving the first spacer 76 from the second end of the main shaft 71 and pushing the first spacer to a fixed shaft end 741 of the hinge 74 to enable cam teeth 763 and 749 of the first spacer and the fixed shaft end to be matched; sleeving a pair of first springs 78 on the main shaft 71, sleeving the first interval fixing block 75 on the main shaft 71 from the second end of the main shaft 71 and pushing towards the first end, wherein two ends of the first springs 78 respectively abut against the first spacing block 76 and the first interval fixing block 75, and the spacing block 753 of the first interval fixing block 75 is positioned between the pair of first springs 78 and locked in the accommodating cavity 233 of the back cover 23; a pair of the fixing sleeves 77 are sleeved outside a pair of the spindles 71 and fixed with the spindles 71 through the lock bolts 713; then the second spacing block 76, the pair of second springs 78 and the second spacing fixing block 75 are sequentially sleeved from the second end of the main shaft 71, the second spacing block 76 is matched with the cam teeth 763, 772 of the fixing sleeve 77, and the spacing block 753 of the second spacing fixing block 75 is positioned between the pair of second springs 78 and locked in the back cover 23 through bolts; finally, a snap spring mounting end 712 at the second end of the main shaft 71 is snapped into the snap spring 79 to lock the second spacer fixing block 75. The limit rotation end 714 of the main shaft 71 and the first end of the shaft body 721 of the auxiliary shaft 72 of the assembled damping mechanism 70 are inserted into the first shaft hole 616 and the second shaft hole 617 of the lower fixing base 61.

Referring to fig. 3 and 23 to 25, the first housing 201 and the second housing 202 of the folding apparatus of the present application are hinged together by the hinge mechanism a fixed in the back cover 23, and specifically, the hinge mechanism a includes a hinge 60 connecting the first housing 201 and the second housing 202 at two longitudinal ends and an intermediate hinge 80 connecting the first housing 201 and the second housing 202 at an intermediate position. The damping mechanism 70 is combined with the hinge 60, and the damping mechanism 70 has a synchronous function, that is, the gear 715 on the pair of main shafts 71 rotates through the gear 722 on the pair of auxiliary shafts 72, so that the hinge 60 or the pair of hinges 74 of the damping mechanism 70 rotate synchronously.

The operating principle of this application folding equipment is as follows, it is shown with great reference to fig. 23 to 25 that the connecting seat 64,65 is fixed in first shell 201 and the second shell 202, to screen protection board 50's control, through hinge 60 controls, specifically, when the expansion state, screen protection board 50 is the parallel state in order to support flexible screen subassembly 10, at this moment, bolt 636 of hinge 74 is located the outside of third track groove 541 of third protruding axle portion 54 is in order to raise screen protection board 50, promptly third track groove outside 541 distance the distance of the inboard holding surface of screen protection board 50 is greater than the inboard distance of third track groove 541 the distance of the inboard holding surface of screen protection board 50. Meanwhile, the rail arcs 645,656 on the connection bases 64,65 are fitted into the first rail groove 521 of the first boss portion 52 of the screen protection plate 50, and the rail arcs 645,656 are also located at the outermost side of the first rail groove 521 in the unfolded state. At this time, the back cover 23 is accommodated in the mounting portion 22 of the first housing 201 and the second housing 202.

When the flexible screen assembly 10 is folded, the first housing 201 and the second housing 202 rotate relatively, the hinge 74 and the connecting rod 63 are driven to rotate, at this time, the limiting edge 748 of the hinge 74 moves from inside to outside between the first limiting groove 6473 and the second limiting groove 6541 of the connecting seats 64 and 65, the bolt 636 connected to the third rail groove 541 rotates to the inner point of the third rail groove 541 to stretch the inner part of the screen protection plate 50 outwards, so that enough space is left at the lower side to accommodate the folded large arc screen section 13 of the flexible screen assembly 10, and the inner supporting surface of the screen protection plate 50 is inclined and supported on the retracted screen section 13 to provide protection, so as to protect the flexible screen assembly 10 from being damaged. And the track arcs 645,656 on the connecting bases 64,65 are matched with the first track groove 521 of the first protruding shaft portion 52, so as to control the outer side of the screen protection plate 50 to fold and make the shrinking screen section 12 smoothly transit to the plane screen section 11. The inner side and the outer side of the screen protection plate 50 can be stably controlled to rotate according to the correct track.

This application damping mechanism 70 has combined the synchronizing function, simultaneously, realizes the two-stage damping effect, has increased the damping effect, passes through promptly hinge 74's fixed axle head 741 with first spacer 76 realizes first order damping effect, through fixed cover 77 with second spacer 76 realizes second level damping effect, has effectively strengthened the resistance, has promoted user experience.

The connecting base is designed into the first connecting base 64 and the second connecting base 65 in a split manner, and then the screen protection plate 50, the hinge 74 and the connecting rod are assembled on the connecting base, the hinge 74 and the screen protection plate 50 are easily assembled with the screen protection plate 50, for example, track arcs 645,656 corresponding to a pair of first track grooves of the screen protection plate 50 are respectively arranged on the first connecting base 64 and the second connecting base 65, and the pushing is simple; the insertion of the latch between the hinge 74 and the third rail groove 541 of the screen protection plate 50 is easier.

This application hinge 60 acts on respectively through hinge 74 and fixing base 64 through ingenious design the inside and outside both sides of screen protection board 50, effective control screen protection board 50 is in the horizontal support state when expanding, when folding, in the interior wide narrow structure in order to support the flexible screen subassembly 10 after the protection is folding and leave bigger confession flexible screen subassembly 10 bends the space.

The hinge mechanism A integrates the hinge 60 and the damping mechanism 70, and achieves good folding performance.

First shell 201 and second shell 202 of this application folding equipment set up supporting part 21 at horizontal outside internal surface, are less than in horizontal inboard setting the installation department 22 on supporting part 21 surface, and the downside of supporting part 21 is then processed into the cavity 214 of loading components and parts, has effectively solved the problem of accomodating of hinge 60 and back lid 23.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A folding device is characterized by comprising a first shell, a second shell, a back cover, a hinge mechanism and a flexible screen component, wherein the hinge mechanism is fixed in the back cover, the two transverse sides of the hinge mechanism are respectively hinged with the first shell and the second shell, the first shell and the second shell respectively comprise a supporting part and a mounting part positioned on the inner side of the supporting part, the hinge mechanism comprises a fixed seat fixed in the back cover, a connecting seat fixed on the mounting parts of the first shell and the second shell, a connecting rod and a hinge which are movably hinged on the fixed seat and the connecting seat, and a screen protection plate movably interfered with the fixed seat and the hinge, the upper side of the screen protection board is a supporting surface for fixing the flexible screen component, the screen protection board also comprises at least one pair of first protruding shaft parts which are formed by downward protruding from the outer end of the lower side surface of the screen protection board and a third protruding shaft part which is formed by downward protruding from one side of the lower side surface of the screen protection board close to the inner side, the third convex shaft part is positioned between the pair of first convex shaft parts, the first convex shaft parts are provided with a pair of first track grooves, a third track groove is arranged on the third convex shaft part, the two first track grooves are coupled with the connecting seat, the third track groove is connected with the hinge through a bolt strip, a limit edge is formed at the edge of the outer end of the hinge, the connecting seat comprises a first connecting seat and a second connecting seat, a limiting groove coupled with the limiting edge is arranged at the position of the first connecting seat opposite to the second connecting seat, the supporting surface of the screen protection plate is in a horizontal supporting state, and when the hinge is folded, the hinge outwards pulls the lower side of the screen protection plate so that the pair of screen protection plates are in a shape of being wide at the bottom and narrow at the top.

2. The folding apparatus of claim 1, wherein said first and second housings further include a peripheral wall outside said support portion and said mounting portion, a channel extending downwardly between said peripheral wall and an upper surface edge of said support portion, said folding apparatus further including a strip of adhesive pressed into said channel, said strip of adhesive at least partially covering an edge portion of said flexible screen assembly.

3. The folding apparatus as claimed in claim 2, wherein the mounting portion is formed by recessing downward from the supporting portion, a cavity for mounting an electronic component is provided at a lower side of the supporting portion, both lateral side portions of the flexible screen assembly are fixed to an upper surface of the supporting portion, a middle portion of the flexible screen assembly is tightly attached to an upper side of the hinge mechanism but is not fixed, the back cover and the hinge mechanism are accommodated in the mounting portion in an unfolded state, the mounting portions of the first and second housings are tightly attached together, the back cover is exposed to the outside in a folded state, the hinge mechanism forms a space with a width at a lower end and a width at a higher end, and the middle portion of the flexible screen assembly is folded into a water drop shape.

4. The folding apparatus of claim 1, wherein said mounting portion includes a mounting surface, a recessed groove recessed in said mounting surface along a longitudinal direction, and a protrusion disposed outside said recessed groove, said back cover includes a back cover bottom wall, a peripheral wall extending upward from said back cover bottom wall, and a receiving cavity defined by said back cover bottom wall and said peripheral wall, a middle portion of said back cover bottom wall is recessed upward, when in an unfolded state, a middle portion of said back cover bottom wall is correspondingly located above said protrusion of said first housing and said second housing, and two side portions of said back cover bottom wall are received in said recessed groove of said first housing and said second housing.

5. The folding apparatus of claim 4, wherein said flexible panel assembly includes a flat panel section fixedly attached to a surface of said support portion, a large arc panel section at a folded position, and a retractable panel section smoothly transitioning from said large arc panel section to said flat panel section when said folding apparatus is in a folded state, said hinge mechanism further comprising a screen protection panel supporting said retractable panel section to extend or deform along a predetermined trajectory.

6. The folding apparatus of claim 5, wherein the first connecting seat and the second connecting seat are respectively provided with rail arcs facing in the same direction, the first rail groove of the screen protection plate receives the rail arcs such that the rail arcs can rotate in the first rail groove, wherein a first rail arc is provided at an outer edge of a first longitudinal end of the first connecting seat, a second rail arc is provided inside a second longitudinal end of the second connecting seat, the second longitudinal end of the second connecting seat is provided with a rotation avoiding space inside, and the second rail arc is provided on a longitudinal outer side wall of the rotation avoiding space.

7. The folding apparatus as claimed in claim 6, wherein the first longitudinal end of the first connecting seat is provided with a rotation space for accommodating one end of the connecting rod, the first longitudinal end of the first connecting seat is provided with bolt holes at both longitudinal sides of the rotation space, one end of the connecting rod is limited in the bolt hole by a bolt, the bolt is inserted from the outside of the first longitudinal end of the first connecting seat, the first connecting seat extends along the transverse inner side to form a vertical beam, the second connecting seat extends along the transverse inner side to form another vertical beam, a pair of limiting grooves are formed on the two vertical beams, and the limiting edge of the hinge is inserted into the limiting groove to move.

8. The folding apparatus of claim 7, wherein said hinge includes a fixed shaft end rotatably retained at one side of said fixed base, a fitting plate extending from said fixed shaft end, said retaining edge formed at both longitudinal sides of said fitting plate, an opening opened at a middle of said fitting plate, a convex hull formed by protruding inward from said fitting plate at both longitudinal sides of said opening, and a rotation hole formed longitudinally through said convex hull.

9. The folding apparatus of claim 8, wherein the limiting edges of the two sides of the engaging plate are inserted into the limiting grooves of the first connecting seat and the second connecting seat, the first connecting seat and the second connecting seat further comprise an engaging portion and an engaged portion, and the engaging portion and the engaged portion are locked by bolts.

10. The folding apparatus of claim 9, wherein the third shaft portion of the screen protection plate is engaged with the opening of the engagement plate, and the third track groove is engaged with the rotation hole of the convex hull by a latch, and a distance between an inner side position of the third track groove and an inner side surface of the screen protection plate is smaller than a distance between an outer side position of the third track groove and the inner side surface of the screen protection plate.

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