CN114962435A

CN114962435A - Damping mechanism and folding equipment

Info

Publication number: CN114962435A
Application number: CN202210609022.2A
Authority: CN
Inventors: 刘明生; 陈小硕; 韦光东; 刘建军
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-30

Abstract

A damping mechanism comprises a pair of main shafts, a pair of hinges, a first spacing block, a pair of first springs, a first spacing fixing block, a fixing sleeve, a second spacing block, a pair of second springs, a second spacing fixing block and a clamp spring, wherein one end of each hinge is fixed on the pair of main shafts, the first spacing block, the pair of first springs, the first spacing fixing block, the fixing sleeve, the second spacing block, the pair of second springs, the second spacing fixing block and the clamp spring are sequentially sleeved on the pair of main shafts in a sleeved mode, the hinge is adjacent to the first spacing block and is provided with mutually matched cam teeth, the first spacing fixing block and the second spacing fixing block are fixed on an object to be immovable, the fixing sleeve is adjacent to the second spacing block and is provided with mutually matched cam teeth, the fixing sleeve is fixed on the main shafts to be immovable, and the main shafts can rotate on the object; the present application further provides a folding apparatus.

Description

Damping mechanism and folding equipment

Technical Field

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

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. At present, the technical development of the flexible screen is not enough to be folded at will, but the flexible screen is required to be kept to be folded at a certain radian, and the flexible screen is ensured to keep the same length as the folded state in the unfolding state, so that the water drop-shaped folded state is generated, but the prior art lacks effective keeping support for the water drop-shaped folded flexible screen, and the problem of easy damage also exists.

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

Disclosure of Invention

Accordingly, there is a need for a damping mechanism and a folding apparatus that can effectively enhance the folding force.

In order to solve the technical problem, the application provides a damping mechanism, be fixed in a pair of including a pair of main shaft, one end epaxial a pair of hinge, overlap in proper order and locate a pair of epaxial first spacer block, a pair of first spring, first interval fixed block, fixed cover, second spacer block, a pair of second spring, second interval fixed block and card in a pair of the terminal jump ring of main shaft, the hinge with first spacer block is adjacent and all is equipped with the cam tooth of mutually supporting, first interval fixed block and second interval fixed block are fixed in on the object unmovable, fixed cover with the second spacer block is adjacent and all is equipped with the cam tooth of mutually supporting, fixed cover is fixed in unmovable on the main shaft, the main shaft can in rotate on the object, when a pair of hinge during the rotation each other, the hinge with the cam tooth of first spacer block, the cam tooth of mutually supporting, The fixed sleeve is in rotating fit with the cam teeth of the second spacing block, and the first spring and the second spring are pushed to be compressed longitudinally respectively to provide rotating resistance.

Preferably, the first spring and the second spring provide dual rotation resistance, and the longitudinal outer end of the hinge is limited on the main shaft and cannot move along the longitudinal outer side.

Preferably, the hinge includes a fixed shaft end fixed to the main shaft, a matching plate formed by extending from the fixed shaft end, and a fixed shaft hole formed through the fixed shaft end, the hinge is fixed to the main shaft through the fixed shaft hole, when the hinge rotates, the main shaft rotates simultaneously, and the fixed shaft end is provided with the cam teeth toward the first spacer.

Preferably, the first spacer block comprises a partition plate, a shaft hole penetrating through two transverse ends of the partition plate for the spindle to penetrate through, and cam teeth formed by protruding from the periphery of the shaft hole along the longitudinal direction, the spindle rotates in the shaft hole of the first spacer block, and the cam teeth of the first spacer block are opposite to and matched with the cam teeth of the hinge.

Preferably, the first spring is sleeved on the main shaft, two ends of the first spring are respectively abutted to the first spacer block and the first spacing fixed block, the first spacing fixed block comprises a partition plate, shaft holes penetrating through two transverse ends of the partition plate and a spacing block extending from the middle of the partition plate towards the first spacer block, screw holes are formed in the spacing block in a vertically penetrating mode, and the damping mechanism is fixed on the object through the screw holes of the spacing block.

Preferably, the fixing sleeve is sleeved on the main shaft, a bolt hole is formed in the fixing sleeve in a penetrating mode, a lock bolt is arranged at the position corresponding to the main shaft, the lock bolt is inserted into the bolt hole to be fixed, so that the relative position of the fixing sleeve and the main shaft is fixed, the first interval fixing block is limited by the fixing sleeve in the longitudinal direction, the fixing sleeve rotates along with the main shaft, and the main shaft rotates in the peripheral hole of the first interval fixing block.

Preferably, the second spacer block comprises a partition plate, a shaft hole penetrating through two transverse ends of the partition plate for the main shaft to pass through, and the cam teeth formed by protruding from the periphery of the shaft hole along the longitudinal direction, the main shaft rotates in the shaft hole of the second spacer block, and the cam teeth of the second spacer block are opposite to and matched with the cam teeth of the fixed sleeve.

Preferably, the second spring is sleeved on the main shaft, two ends of the second spring respectively abut against the second spacing block and the second spacing fixed block, the second spacing fixed block comprises a partition plate, shaft holes penetrating through two transverse ends of the partition plate and a spacing block extending from the middle of the partition plate towards the first spacing block, screw holes are formed in the spacing block in a vertically penetrating mode, and the damping mechanism is fixed on the object through the screw holes of the spacing block.

Preferably, the damping mechanism further comprises a pair of auxiliary shafts located between the pair of main shafts, gears are fixed on the main shafts and the auxiliary shafts, the gears on the pair of main shafts are meshed with the gears on the adjacent auxiliary shafts, and the gears on the pair of auxiliary shafts are meshed with each other, so that the hinges on the pair of main shafts are synchronous in rotation.

Preferably, the main shaft is further provided with a fixing plate, and the fixing plate is located between the hinge and the gear.

In order to solve the technical problem, the application further provides folding equipment, which comprises the damping mechanism, the first shell, the second shell, the back cover and the flexible screen assembly, wherein the flexible screen assembly is supported on the inner surface of the first shell and the inner surface of the second shell, and a pair of hinges of the damping mechanism are respectively hinged on the first shell and the second shell.

This application damping mechanism and folding equipment through two-stage damping mechanism, has increased the damping effect, promptly passes through the fixed axle head of hinge with first order damping effect is realized to first spacer block, through fixed cover with second level damping effect is realized to the second spacer block, has effectively strengthened the resistance, has promoted user experience.

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 the line B-B in FIG. 2;

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

FIG. 7 is 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 condition 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 broken line 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; barrier-215; a mounting portion-22; mounting surface-221; indentation trench-222; a bump-223; a fixing hole-224; avoidance slot-225; a limiting groove-226; a back cover-23; back cover bottom wall-231; an outer peripheral wall-232; a containing cavity-233; a cable channel-234; a fixing hole-235; a cover plate-30; adhesive tape-40; an articulation mechanism-A; a screen protection panel-50; a plate body-51; a support arc 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 gap-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 hole-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 camber-622; a positioning post-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 tie-bar-636; a first connecting seat-64; a second connecting seat-65; a connecting seat body-641,651; locator post-642, 652; fixing hole-643,653; rotating the avoiding space-644,655; orbital arc-645, 656; keyhole-646; a fitting portion-647; beam-6471; a vertical beam-6472; a first limiting groove-6473; a limiting wall-6474; keyhole-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; a shaft hole-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 securing sleeve-77; keyhole-771; 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 a few embodiments of the present application, and not all 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 side of the supporting portion 21 in the transverse direction. 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 adhesive tape 40 is inserted into the pressing groove 213, and the adhesive tape 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 outside of the cavity 214 is covered with a cover plate 30, the cover plate 30 seals 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 part 22 and the cavity 214, and the supporting part 21 and the mounting part 22 are connected into a whole through the partition 215. The mounting portion 22 includes a mounting surface 221 located at an inner side, a recessed groove 222 longitudinally formed at an outer edge of the mounting surface 221, and a protrusion 223 longitudinally formed at an 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 to assemble and fix 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 to 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. A plurality of fixing holes 235 are formed on the bottom wall 231 of the back cover protruding out of the accommodating cavity 233, and a cable channel 234 is further formed in the middle portion of the back cover 23.

The back cover 23 is exposed to the outside when the first housing 201 and the second housing 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 cover bottom wall 231 is provided with an arc structure so that the back cover bottom wall 231 can be matched with the concave groove 222 and the bulge 223 of the installation part 22, namely, the middle of the back cover bottom wall 231 is concave upwards, the two sides of the back cover bottom wall 231 are arc surfaces, the arc parts at the two sides of the back cover bottom wall 231 are contained in the concave groove 222, and the middle of the back cover bottom wall is concave upwards corresponding to the bulge 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 fixedly installed 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 is 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 widest position department shrinks relatively gradually until two plane screen sections 11 are parallel, shrink screen section 13 middle zone section is the plane, and both sides have certain radian of bending. The screen protection plate 50 is used to support the bent state of the flexible screen assembly 10 and maintain the flexible screen assembly 10 in a drop-shaped bent 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 an outward curved supporting arc surface 511 to correspond to the transition position of the shrinking 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 in the inner side of the first protruding shaft portion 52, second track grooves 531 are formed in 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 that surpasses 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 outward protruding height of the third protruding shaft portion 54 is greater than that of the first protruding shaft portion 52 and the second protruding shaft portion 53, and the third track groove 541 longitudinally penetrates through the third protruding shaft portion 54 and has a track stroke greater than that of 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, and a longitudinal middle outer side position. 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 and a pair of second shaft holes 617 on both sides of the first shaft holes 616 on a side surface facing the damping mechanism 70, and the second shaft holes 617 are opened to be open.

The upper fixing seat 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 seat 62 and the lower fixing seat 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 columns (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 pivoting arc segments 631 at a first end and corresponds to a pair of arc slot arrangements 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, second limit grooves-6541 opened on 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 in the cross beam 6471 through a bolt. A slot 6543 is provided between the mating top 6542 and the upstanding beam 6545 to allow the retaining wall 6474 to receive 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 portion 647 of the first connecting seat 64 along the longitudinal direction, at this time, the other first protruding shaft portion 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 portion 6542 of the second connecting seat 65, the fitting portion 647 is locked with the locking hole 6475,6544 of the fitted portion 6542 through the bolt, and both 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 panels 50 is assembled with a hinge 60 at both longitudinal ends and the middle hinge 80 at the middle.

With reference to fig. 21 and 22, the damping mechanism 70 of the present disclosure 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 on the pair of main shafts 71 and the auxiliary shafts 72, hinges 74 sleeved on the pair of main shafts 71, first spacing blocks 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 abutted against the first spacing blocks 76, first spacing fixing blocks 75 sleeved on the pair of main shafts 71 and having the other ends abutted against the 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 spacing blocks 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 abutted against the second spacing blocks 76, a first spring 78, a second spring, a third spring, a fourth spring, and a fourth spring, and a fourth spring, a fourth spring, a fourth, and a fourth, and a fourth spring, a fourth, and a fourth, and a fourth, a, A second spacing fixed block 76 sleeved on the pair of main shafts 77 and abutted against the other end of the second spring 78, a snap spring 79 fastened on the pair of main shafts 71 and locking the second spacing fixed block 76, and a fixed plate 73 sleeved on the pair of main shafts 71 and spacing the hinge 74 and the gear 715,722.

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 and rotates. 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 731, shaft holes 733 and 734 formed 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 extending from the middle of the upper side of the plate 731 in the longitudinal direction, and a second protrusion 735 extending from the outer side of the shaft hole 733 in the longitudinal direction. The plate 731 has a planar structure on the side facing the gear 711,722 and supports the main shaft 71 and the auxiliary shaft 72 for rotation through the shaft hole 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 engage the cam teeth 763 of the first spacer 76. The cam teeth are of a prior art structure, and the operation principle of the cam teeth is not described in detail herein.

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 has a screw hole 754 formed vertically therethrough, and the spacing fixing block 75 is locked to 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 comprises a bolt hole 771 and is fixed on the main shaft 71 immovably through the lock bolt 713, and a cam tooth 772 is formed on one side of the fixing sleeve 77 away from the first interval fixing block 75. In one embodiment, the fixing sleeve 77 may be integrated with the first spacer fixing block 75.

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

the gear 715,722 is fixed on the first ends of the pair of main shafts 71 and the pair of auxiliary shafts 72; the fixed plate 73 is sleeved on one side of the gear 715,722 from the second ends of the main shafts 71, and the second ends of the shaft bodies 721 of the auxiliary shafts 72 are accommodated in a pair of shaft holes 734 in the middle of the fixed 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 the fixed shaft end 741 of the hinge 74 to enable the cam teeth 763 and 749 of the first spacer and the fixed shaft end 741 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 clamp spring mounting end 712 at the second end of the main shaft 71 is clamped into the clamp 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 fixed seat 61.

Referring to fig. 3 and 23 to 25, the first housing 201 and the second housing 202 of the folding device of the present application are hinged together by a hinge mechanism a fixed in the back cover 23, specifically, the hinge mechanism a includes a hinge 60 connecting the first housing 201 and the second housing 202 at two longitudinal ends and a middle hinge 80 connecting the two at a middle position. The damping mechanism 70 is combined with the hinge 60, and the damping mechanism 70 has a synchronous function, namely, the gears 715 on the pair of main shafts 71 rotate in a linked manner through the gears 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 theory of operation of this application folding equipment is as follows, it is shown with emphatic reference to fig. 23 to 25 that the key, connecting

seat

64,65 are fixed in first shell 201 and the second shell 202, right 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 of the connecting

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 sides 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 side portion of the screen protection plate 50 outwards, so that enough space is left below 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 for protection, so as to protect the flexible screen assembly 10 from being damaged. 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 to control the outer side of the screen protection plate 50 to be folded to smoothly transition the contracted screen section 12 to the flat 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, promptly passes through 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 assembled between the connecting base and the screen protection plate 50 easily, and if the 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, 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 good folding performance is achieved.

The first shell 201 and the second shell 202 of the folding equipment are provided with the supporting part 21 on the inner surface of the transverse outer side, the installation part 22 lower than the surface of the supporting part 21 is arranged on the transverse inner side, the lower side of the supporting part 21 is processed into the cavity 214 for loading components, and the storage problem of the hinge 60 and the back cover 23 is effectively solved.

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

1. A damping mechanism is characterized by comprising a pair of main shafts, a pair of hinges, a first spacing block, a pair of first springs, a first spacing fixing block, a fixing sleeve, a second spacing block, a pair of second springs, a second spacing fixing block and a clamp spring, wherein one end of each hinge is fixed on the pair of main shafts, the first spacing block, the pair of first springs, the first spacing fixing block, the fixing sleeve, the second spacing block, the second spacing fixing block and the clamp spring are sequentially sleeved on the pair of main shafts in a sleeved mode, the hinge is adjacent to the first spacing block and is provided with mutually matched cam teeth, the first spacing fixing block and the second spacing fixing block are fixed on an object in an immovable mode, the fixing sleeve is adjacent to the second spacing block and is provided with mutually matched cam teeth, the fixing sleeve is fixed on the main shafts in an immovable mode, the main shafts can rotate on the object, when the pair of hinges rotate mutually, the hinge is in rotary fit with the cam teeth of the first spacing block and the cam teeth of the fixing sleeve and the second spacing block, the first spring and the second spring are pushed to compress along the longitudinal direction respectively to provide rotation resistance.

2. The damper mechanism of claim 1, wherein said first and second springs provide dual rotational resistance, and wherein said hinge is longitudinally outwardly restrained from longitudinal movement on said spindle.

3. The damper mechanism according to claim 2, wherein the hinge includes a fixed shaft end fixed to the main shaft, an engagement plate extending from the fixed shaft end, and a fixed shaft hole formed through the fixed shaft end, the hinge is fixed to the main shaft through the fixed shaft hole, the main shaft rotates simultaneously when the hinge rotates, and the fixed shaft end is provided with the cam teeth toward the first spacer.

4. The damper mechanism according to claim 3, wherein said first spacer includes a partition plate, a shaft hole penetrating both lateral ends of said partition plate for said spindle to pass through, and said cam teeth formed to protrude longitudinally from a periphery of said shaft hole, said spindle rotates in said shaft hole of said first spacer, and said cam teeth of said first spacer are opposed to and engaged with said cam teeth of said hinge.

5. The damping mechanism of claim 4, wherein the first spring is sleeved on the main shaft, two ends of the first spring respectively abut against the first spacer block and the first spacing fixed block, the first spacing fixed block comprises a partition plate, shaft holes penetrating through two transverse ends of the partition plate, and a spacer block extending from the middle of the partition plate toward the first spacer block, screw holes are formed in the spacer block in a vertically penetrating manner, and the damping mechanism is fixed on the object through the screw holes of the spacer block.

6. The damping mechanism as claimed in claim 2, wherein said fixing sleeve is sleeved on a main shaft, said fixing sleeve is formed with a bolt hole through it, a lock bolt is provided at a position corresponding to said main shaft, said lock bolt is inserted into said bolt hole to fix the relative position of said fixing sleeve and said main shaft, said first fixed spacer block is longitudinally restrained by said fixing sleeve, said fixing sleeve rotates with said main shaft, and said main shaft rotates in the peripheral hole of said first fixed spacer block.

7. The damping mechanism as claimed in claim 6, wherein said second spacer includes a partition plate, a shaft hole extending through both lateral ends of said partition plate for said spindle to pass through, and said cam teeth formed to protrude longitudinally from the periphery of said shaft hole, said spindle being rotatable in said shaft hole of said second spacer, said cam teeth of said second spacer being opposed to and cooperating with said cam teeth of said stationary sleeve.

8. The damping mechanism as claimed in claim 7, wherein the second spring is sleeved on the main shaft and two ends of the second spring respectively abut against the second spacer block and the second spacer block, the second spacer block includes a partition plate, shaft holes penetrating through two lateral ends of the partition plate, and spacer blocks extending from a middle of the partition plate toward the first spacer block, the spacer blocks are vertically penetrated to form screw holes, and the damping mechanism is fixed on the object through the screw holes of the spacer blocks.

9. The damping mechanism of claim 1, further comprising a pair of countershafts between the pair of main shafts, the gears being fixed to both the main shafts and the countershafts, the gears on one pair of main shafts meshing with the gears on an adjacent countershaft, and the gears on one pair of countershafts meshing with each other to synchronize the rotation of the hinges on one pair of main shafts.

10. The damper mechanism of claim 9, wherein said spindle further includes a mounting plate disposed between said hinge and said gear.

11. A folding apparatus comprising a damping mechanism according to any one of claims 1 to 10, a first housing, a second housing, a back cover and a flexible screen assembly supported on the inner surfaces of the first and second housings, the damping mechanism having a pair of hinges hingedly connected to the first and second housings respectively.