Rotating shaft structure of soft screen

Abstract

The utility model relates to a rotating shaft structure of a flexible screen, which is characterized in that a first arc-shaped part and a second arc-shaped part of a base are respectively connected with a first arc-shaped connecting part and a second arc-shaped connecting part of a first rotating piece and a second rotating piece in an arc-shaped swinging manner, and one end face of the base is provided with a first pivoting part, a first connecting part and a second pivoting part; one end of the first connecting rod and one end of the second connecting rod are respectively pivoted with the first pivoting part and the second pivoting part, and the other end of the first connecting rod and the other end of the second connecting rod are respectively provided with a first guide rail and a second guide rail; the first guide rail and the second guide rail are respectively connected with the first guide part and the second guide part on one side of the first rotating piece and the second rotating piece in a linear movement manner; one end of the first synchronous moving connecting rod module is provided with a second connecting part, and the second connecting part is connected with the first connecting part so as to be in butt joint with the first synchronous moving connecting rod module and the base.

Description

Technical Field

[0001] The utility model relates to a hinge, in particular to a rotating shaft structure of a flexible screen of a foldable electronic device. Background Art

[0002] In traditional foldable electronic devices, such as the display and base of a notebook computer, a single-core shaft hinge is mainly used to connect the side of the display and the base respectively to form a pivot, so that the display can be flipped up or closed relative to the base. In the existing "flexible screen foldable device", different rotating shaft structure designs are matched according to the curvature of the flexible screen after being folded inward or outward and the bending part, so as to avoid hindering the folding action of the flexible screen and causing pulling. Among them, the foldable device with the flexible screen folded inward mainly follows the traditional foldable device in the opening and closing actions. After folding, the flexible screen can be protected inside, and it is closer to the user's habit and is easier to be accepted. However, the structure design of the rotating shaft structure of such products is limited by the type of flexible screen used, and it is also necessary to consider that the bending part after the flexible screen is folded inward will present one of the states of a water droplet shape or a horseshoe shape, resulting in differences.

[0003] Among them, as shown in the patent case of "Water Drop Shape Synchronous Rotation Mechanism for Realizing In-Screen Folding" of CN209514482U, it mainly includes a structural body, which is composed of a packaging body and rotating shafts on both sides. The rotating shafts are composed of sliders on both sides and multiple groups of movable blocks in the middle. The movable blocks include a central movable block, a positioning connection movable block, a damping torsion movable block and a chute sliding movable block. The sliders include a first slider and a second slider for realizing screen compensation buffering and connection positioning. The chute sliding movable block includes a first chute movable block and a second chute movable block for semi-circular tube position connection to complete synchronous rotation. The first chute movable block and the second chute movable block are respectively provided with chutes, and sliding is realized through the chutes to complete screen compensation buffering; and the central movable block includes four groups of support columns, and positioning and synchronous rotation connection are realized through the up and down movement of the support columns.

[0004] The structure of the "double virtual rotation center mechanism" and the "double crank and connecting rod mechanism" disclosed in the above patent case is relatively complex in the manufacturing and assembly of the "crank and connecting rod mechanism", and has higher specifications and quality requirements. For example: in the assembly of each part of the crank and connecting rod mechanism, due to the unconventional structural shape of the "connecting rod mechanism", the angle during assembly is relatively special, making the assembly requirements more stringent and more difficult. Moreover, there is a complex connection relationship between the "double virtual rotation center mechanism" and the "double crank and connecting rod mechanism", which not only requires more components to be assembled, making it unfavorable for manufacturing and assembly, but also affects the service life of the product. Summary of the Utility Model

[0005] In view of this, in order to provide a structure different from the prior art and improve the above-mentioned disadvantages, the inventor has accumulated years of experience and continuously carried out R & D and improvement, and thus this utility model has been created.

[0006] An object of this utility model is to provide a rotating shaft structure for a flexible screen, so as to solve the problems in the prior art that the structure shape of the connecting rod mechanism is complex and not easy to assemble, and there is a complex connection relationship between the "double virtual rotation center mechanism" and the "double crank connecting rod mechanism", which not only requires more components to be formed and is not conducive to manufacturing and assembly, but also affects the service life of the product.

[0007] To achieve the above object of the utility model, the rotating shaft structure of the flexible screen provided by this utility model includes a base, a first rotating member, a second rotating member, and a first synchronous connecting rod module. The base has a first side and a second side arranged in parallel with a gap therebetween, and there is a first arc portion and a second arc portion with opposite directions between the first side and the second side; one end face of the base has a first pivot portion, a first connection portion, and a second pivot portion. One end of the first rotating member has a first arc connection portion, and the first arc connection portion is connected to the first arc portion in a relatively arc-swinging manner, and one side of the first rotating member has a first guiding portion; one end of the second rotating member has a second arc connection portion, and the second arc connection portion is connected to the second arc portion in a relatively arc-swinging manner, and one side of the second rotating member has a second guiding portion; the first synchronous connecting rod module has a first connecting rod and a second connecting rod that rotate in opposite directions. One end of the first connecting rod is pivotally connected to the first pivot portion of the base, and the other end of the first connecting rod has a first guide rail, and the first guide rail is connected to the first guiding portion in a relatively linear movement manner; one end of the second connecting rod is pivotally connected to the second pivot portion of the base, and the other end of the second connecting rod has a second guide rail, and the second guide rail is connected to the second guiding portion in a relatively linear movement manner; one end of the first synchronous connecting rod module has a second connection portion, and the second connection portion is connected to the first connection portion for docking the first synchronous connecting rod module and the base.

[0008] During implementation, the first connection portion of the base has a first card slot, and the second connection portion of the first synchronous connecting rod module has a first card block, and the first card block is connected to the first card slot.

[0009] During implementation, the first connection portion of the base has a first tab, and the second connection portion of the first synchronous connecting rod module has a second tab, the second tab overlaps the first tab, and the second tab and the first tab simultaneously lock a fifth connection portion at the top of a long bottom shell.

[0010] During implementation, the first connecting rod has a plurality of first plates stacked horizontally, and the second connecting rod has a plurality of second plates stacked horizontally.

[0011] During implementation, the first guiding portion includes a first stop portion and a first guide post, the first guide rail includes a first long slot, the first stop portion presses against the first connecting rod, and the first guide post is limited in the first long slot in a relatively linearly movable manner.

[0012] During implementation, the second guiding portion includes a second stop portion and a second guide post, the second guide rail includes a second long slot, the second stop portion presses against the second connecting rod, and the second guide post is limited in the second long slot in a relatively linearly movable manner.

[0013] During implementation, the first synchronous connecting rod module has a first side plate, and the first side plate has a second connecting portion.

[0014] During implementation, the first synchronous connecting rod module further includes a first shaft rod and a second shaft rod. One end of the first shaft rod passes through one end of the first connecting rod and the first side plate to pivotally connect to the first pivoting portion of the base. The other end of the first shaft rod passes through a first torsional positioning component, and the other end of the first shaft rod is locked with a first end seal. One end of the second shaft rod passes through one end of the second connecting rod and the first side plate to pivotally connect to the second pivoting portion of the base. The other end of the second shaft rod passes through a second torsional positioning component, and the other end of the second shaft rod is locked with a second end seal.

[0015] During implementation, the present utility model further includes a second synchronous connecting rod module. The other end face of the base has a third pivoting portion, a third connecting portion, and a fourth pivoting portion. The other side of the first rotating member has a third guiding portion, and the other side of the second rotating member has a fourth guiding portion. The second synchronous connecting rod module has a third connecting rod and a fourth connecting rod that rotate in opposite directions. One end of the third connecting rod pivotally connects to the third pivoting portion of the base, and the other end of the third connecting rod has a third guide rail, and the third guide rail is connected to the third guiding portion in a relatively linearly movable manner. One end of the fourth connecting rod pivotally connects to the fourth pivoting portion of the base, and the other end of the fourth connecting rod has a fourth guide rail, and the fourth guide rail is connected to the fourth guiding portion in a relatively linearly movable manner. One end of the second synchronous connecting rod module has a fourth connecting portion, and the fourth connecting portion connects to the third connecting portion for docking the second synchronous connecting rod module and the base.

[0016] During implementation, the third connecting portion of the base has a second card slot, and the fourth connecting portion of the second synchronous connecting rod module has a second card block, and the second card block connects to the second card slot.

[0017] During implementation, the third connecting portion of the base has a third tab, and the fourth connecting portion of the second synchronous connecting rod module has a fourth tab. The fourth tab overlaps the third tab, and the fourth tab and the third tab simultaneously lock a sixth connecting portion at the top of a long bottom shell.

[0018] During implementation, the third link has multiple laterally stacked third plates, and the fourth link has multiple laterally stacked fourth plates; the third guiding part includes a third stop part and a third guide post, the third guide rail includes a third long slot, the third stop part presses against the third link, and the third guide post is limited in the third long slot in a relatively linearly moving manner; the fourth guiding part includes a fourth stop part and a fourth guide post, the fourth guide rail includes a fourth long slot, the fourth stop part presses against the fourth link, and the fourth guide post is limited in the fourth long slot in a relatively linearly moving manner; the second synchronous link module has a second side plate, and the second side plate has a fourth connecting part.

[0019] During implementation, the second synchronous link module further includes a third shaft rod and a fourth shaft rod. One end of the third shaft rod passes through one end of the third link and the second side plate to pivotally connect to the third pivotal part of the base. The other end of the third shaft rod passes through a third torsional positioning component, and the other end of the third shaft rod is locked with a third end seal; one end of the fourth shaft rod passes through one end of the fourth link and the second side plate to pivotally connect to the fourth pivotal part of the base. The other end of the fourth shaft rod passes through a fourth torsional positioning component, and the other end of the fourth shaft rod is locked with a fourth end seal.

[0020] The beneficial effects of the present utility model are as follows: Through the shape improvement and structure dispersion of each link mechanism, it is designed into a detachable and composite structure, combined with modular parts, to enhance the convenience during assembly, and further make the relative sliding between the links stable and smooth, and contribute to reducing the influence of abnormal noise.

[0021] For a more in-depth understanding of the present utility model, it is described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional external view schematic diagram of the first embodiment of the present utility model;

[0023] Figure 2 is a three-dimensional component exploded view of the first embodiment of the present utility model;

[0024] Figure 3 is an element exploded view of the first synchronous link module of the first embodiment of the present utility model;

[0025] Figure 4 is a partial element exploded view of the first embodiment of the present utility model;

[0026] Figure 5 is a top view of the first embodiment of the present utility model when unfolded;

[0027] Figure 6 is Figure 5 a sectional view taken along line A-A' of

[0028] Figure 7 isFigure 5 Sectional view taken along line B-B'

[0029] Figure 8 Exploded perspective view of the three-dimensional component of the second embodiment of the present utility model

[0030] Figure 9 Exploded view of the components of the first interlocking link module of the second embodiment of the present utility model

[0031] Figure 10 Exploded perspective view of the three-dimensional component of the second embodiment of the present utility model

[0032] Explanation of reference numerals in the drawings

[0033] 1: Rotating shaft structure of the flexible screen

[0034] 2: Base

[0035] 21: First side

[0036] 22: Second side

[0037] 23: First arcuate portion

[0038] 231: First notch

[0039] 232, 232': First arcuate block

[0040] 24: Second arcuate portion

[0041] 241: Second notch

[0042] 242, 242': Second arcuate block

[0043] 25: First connecting portion

[0044] 251: First card slot

[0045] 252: First tab

[0046] 26: First pivot portion

[0047] 261: Second pivot portion

[0048] 27: Third connecting portion

[0049] 271: Second card slot

[0050] 272: Third tab

[0051] 28: Third pivot portion

[0052] 281: Fourth pivot portion

[0053] 3: First rotating member

[0054] 31: first connecting plate;

[0055] 311: first positioning hole;

[0056] 312: third positioning hole;

[0057] 32: first arc connection;

[0058] 33,33': first arc groove;

[0059] 34: first guide portion;

[0060] 341: first guide post;

[0061] 342: first stopper;

[0062] 343: first positioning column;

[0063] 35: third guide portion;

[0064] 351: third guide post;

[0065] 352: third stopper;

[0066] 353: third positioning column;

[0067] 4: second rotating member;

[0068] 41: second connecting plate;

[0069] 411: second positioning hole;

[0070] 412: fourth positioning hole;

[0071] 42: second arc connection;

[0072] 43, 43': second arc groove;

[0073] 44: second guide portion;

[0074] 441: second guide post;

[0075] 442: second stopper;

[0076] 443: second positioning column;

[0077] 45: fourth guide portion;

[0078] 451: fourth guide post;

[0079] 452: fourth stopper;

[0080] 453: fourth positioning column;

[0081] 5: The first synchronous connecting rod module;

[0082] 51: first side panel;

[0083] 511: first perforation;

[0084] 512: Second perforation;

[0085] 513: second connecting portion;

[0086] 514: first card block;

[0087] 515: second protrusion;

[0088] 52: first connecting rod;

[0089] 520: gear set;

[0090] 521: first toothed portion;

[0091] 522: first shaft hole;

[0092] 523: first shaft;

[0093] 524: first guide rail;

[0094] 525: first long groove;

[0095] 526: first plate;

[0096] 53: second connecting rod;

[0097] 531: second tooth-shaped portion;

[0098] 532: second shaft hole;

[0099] 533: second shaft;

[0100] 534: Second guide rail;

[0101] 535: second long groove;

[0102] 536: second plate;

[0103] 54: first torsion positioning assembly;

[0104] 541: first end seal;

[0105] 55: second torsion positioning assembly;

[0106] 551: second end seal;

[0107] 56: support seat;

[0108] 57,57': lugs;

[0109] 6: Second synchronous connecting rod module;

[0110] 61: Second side plate;

[0111] 62: Fourth connecting part;

[0112] 621: Second clamping block;

[0113] 622: Fourth tab;

[0114] 63: Third connecting rod;

[0115] 631: Third guide rail;

[0116] 632: Third long slot;

[0117] 633: Third plate;

[0118] 64: Fourth connecting rod;

[0119] 641: Fourth guide rail;

[0120] 642: Fourth long slot;

[0121] 643: Fourth plate;

[0122] 65: Third shaft rod;

[0123] 651: Fourth shaft rod;

[0124] 66: Third torsional positioning component;

[0125] 661: Third end seal;

[0126] 67: Fourth torsional positioning component;

[0127] 671: Fourth end seal;

[0128] 7: Long bottom shell;

[0129] 71: Fifth connecting part;

[0130] 72: Sixth connecting part. Detailed implementation mode

[0131] The rotating shaft structure of the flexible screen of the present utility model includes a base 2. The base 3 has a first side 21 and a second side 22 arranged in parallel with a space therebetween. There are a first arc portion 23 and a second arc portion 24 in opposite directions between the first side 21 and the second side 22; one end face of the base 2 has a first pivot portion 26, a first connection portion 25 and a second pivot portion 261. One end of the first rotating member 3 has a first arc connection portion 32, and the first arc connection portion 32 is connected to the first arc portion 23 in a relatively arc-swinging manner. One side of the first rotating member 3 has a first guiding portion 34; one end of the second rotating member 4 has a second arc connection portion 42, and the second arc connection portion 42 is connected to the second arc portion 24 in a relatively arc-swinging manner. One side of the second rotating member 4 has a second guiding portion 44; the first synchronous link module 5 has a first link 52 and a second link 53 that rotate in opposite directions. One end of the first link 52 is pivotally connected to the first pivot portion 26 of the base 2, and the other end of the first link 52 has a first guide rail 524, and the first guide rail 524 is connected to the first guiding portion 34 in a relatively linear movement manner; one end of the second link 53 is pivotally connected to the second pivot portion 261 of the base 2, and the other end of the second link 53 has a second guide rail 534, and the second guide rail 534 is connected to the second guiding portion 44 in a relatively linear movement manner; one end of the first synchronous link module 5 has a second connection portion 513, and the second connection portion 513 is connected to the first connection portion 25, so that the first synchronous link module 5 and the base 2 are mutually docked.

[0132] Please refer to Figures 1 to 7 As shown in the figure, it is the first embodiment of the rotating shaft structure 1 of the flexible screen of the present utility model, including a base 2, a first rotating member 3, a second rotating member 4, a first synchronous link module 5 and a second synchronous link module 6. The base 2 is a long plate body, which is fixed in the top groove of a long bottom shell 7 (as Figure 10 shown); the base 2 has a first side 21 and a second side 22 arranged in parallel with a space therebetween. There are a first arc portion 23 and a second arc portion 24 that are mutually staggered and in opposite directions between the first side 21 and the second side 22; the first arc portion 23 includes a first notch 231 with an opening on the first side 21, and two parallel and spaced first arc blocks 232, 232' in the first notch 231; the second arc portion 24 includes a second notch 241 with an opening on the second side 22, and two parallel and spaced second arc blocks 242, 242' in the second notch 241; one end face of the base 2 has a pivot hole, a first connection portion 25 and another pivot hole arranged at intervals in sequence. During implementation, this pivot hole serves as the first pivot portion 26, the first connection portion 25 has a first card slot 251, and this other pivot hole serves as the second pivot portion 261; the other end face of the base 2 has a round hole, a third connection portion 27 and another round hole arranged at intervals in sequence. During implementation, this round hole serves as the third pivot portion 28, the third connection portion 27 has a second card slot 271, and this other round hole serves as the fourth pivot portion 281.

[0133] The first rotating member 3 has a first connecting plate 31 for locking one of the two casings of an electronic device. The top surface of the first rotating member 3 upwardly supports one of the two halves of the flexible screen. One end of the first connecting plate 31 has a first arc connecting portion 32, and first arc-shaped grooves 33, 33' are respectively provided on both side surfaces of the first arc connecting portion 32. The first arc connecting portion 32 is received in the first notch 231, and the two first arc-shaped grooves 33, 33' respectively receive and limit the two first arc-shaped blocks 232, 232', so that the first arc connecting portion 32 is connected to the first arc portion 23 of the base 2 in a relatively arc-swinging manner.

[0134] One side of the first connecting plate 31 has a first guiding portion 34. The first guiding portion 34 includes a coaxial first guiding column 341, a first stopping portion 342 and a first positioning column 343. The first stopping portion 342 is an outwardly convex ring. A first positioning hole 311 is provided on one end surface of the first connecting plate 31 for receiving and positioning the first positioning column 343. The other side of the first connecting plate 31 has a third guiding portion 35. The third guiding portion 35 includes a coaxial third guiding column 351, a third stopping portion 352 and a third positioning column 353. The third stopping portion 352 is an outwardly convex ring. A third positioning hole 312 is provided on the other end surface of the first connecting plate 31 for receiving and positioning the third positioning column 353.

[0135] The second rotating member 4 has the same shape and structure as the first rotating member 3 and is correspondingly arranged on two parallel sides, that is, two opposite sides of the base 2. The second rotating member 4 has a second connecting plate 41 for locking the other of the two casings, and the top surface of the second rotating member 4 upwardly supports the other half of the two halves of the flexible screen. One end of the second connecting plate 41 has a second arc connecting portion 42, and second arc-shaped grooves 43, 43' are respectively provided on both side surfaces of the second arc connecting portion 42. The second arc connecting portion 42 is received in the second notch 241, and the two second arc-shaped grooves 43, 43' respectively receive and limit the two second arc-shaped blocks 242, 242', so that the second arc connecting portion 42 is connected to the second arc portion 24 of the base 2 in a relatively arc-swinging manner. By the reverse arc swinging of the first arc connecting portion 32 and the second arc connecting portion 42, the two halves of the flexible screen can be driven to relatively flip and open.

[0136] One side of the second connecting plate 41 has a second guiding portion 44. The second guiding portion 44 includes a coaxial second guide post 441, a second stop portion 442 and a second positioning post 443. The second stop portion 442 is an outwardly convex ring. A second positioning hole 411 is provided on one end face of the second connecting plate 41 for receiving and positioning the second positioning post 443. The other side of the second connecting plate 41 has a fourth guiding portion 45. The fourth guiding portion 45 includes a coaxial fourth guide post 451, a fourth stop portion 452 and a fourth positioning post 453. The fourth stop portion 452 is an outwardly convex ring. A fourth positioning hole 412 is provided on the other end face of the second connecting plate 41 for receiving and positioning the fourth positioning post 453.

[0137] The first synchronous linkage module 5 includes a first side plate 51, a first connecting rod 52, a second connecting rod 53, a first torsion positioning component 54 and a second torsion positioning component 55. The first side plate 51 is a long plate. One side of the first side plate 51 has a first through hole 511, and the other side of the first side plate 51 has a second through hole 512. One end face of the first side plate 51 has a second connecting portion 513. The second connecting portion 513 has a first clamping block 514, and the first clamping block 514 is located between the first through hole 511 and the second through hole 512.

[0138] One end of the first connecting rod 52 has a first toothed portion 521 and a first shaft hole 522 with the same center. The first toothed portion 521 meshes with a gear set 520. One end of a first shaft rod 523 passes through the first shaft hole 522 and then through the first through hole 511, so that the first connecting rod 52 and the first shaft rod 523 rotate synchronously, and one end of the first connecting rod 52 is pivotally connected to the first pivoting portion 26 of the base 2. The other end of the first connecting rod 52 has a first guide rail 524. The first guide rail 524 includes a long first slot 525. The first guide post 341 of the first guiding portion 34 is received and limited in the first slot 525, and the first stop portion 342 presses against the side surface of the first connecting rod 52, so that the first guide rail 524 is connected to the first guiding portion 34 in a relatively straight-line moving manner and prevents the first connecting rod 52 from rubbing against the first connecting plate 31. During implementation, the first slot 525 can also be provided on the plate surface of the first connecting plate 31, and the first connecting rod 52 can be provided with the first guide post 341, and the first guide rail 524 can also be connected to the first guiding portion 34 in a relatively straight-line moving manner.

[0139] The second connecting rod 53 has the same outer shape and structure as the first connecting rod 52. One end of the second connecting rod 53 has a second toothed portion 531 and a second shaft hole 532 with the same center of the circle. The second toothed portion 531 meshes with the gear set 520, so that the first connecting rod 52 and the second connecting rod 53 rotate in opposite directions. One end of a second shaft rod 533 passes through the second shaft hole 532 and then through the second through hole 512, so that the second connecting rod 53 and the second shaft rod 533 rotate synchronously, and one end of the second connecting rod 53 is pivotally connected to the second pivoting portion 261 of the base 2. The other end of the second connecting rod 53 has a second guide rail 534, and the second guide rail 534 includes a second long groove 535 in a strip shape. The second guide post 441 of the second guiding portion 44 is received in the second long groove 535, and the second stopping portion 442 presses against the side surface of the second connecting rod 53, so that the second guide rail 534 is connected to the second guiding portion 44 in a relatively linearly moving manner, and the second connecting rod 53 and the second connecting plate 41 are prevented from rubbing against each other. During implementation, a second long groove 535 can also be provided on the plate surface of the second connecting plate 41, and the second connecting rod 53 is provided with the second guide post 441 and the first guide post 341. Similarly, the second guide post 441 can be connected to the second guiding portion 44 in a relatively linearly moving manner.

[0140] The other ends of the first shaft rod 523 and the second shaft rod 533 respectively pass through two lugs 57, 57' of a support seat 56, so that the support seat 56 positions the first shaft rod 523 and the second shaft rod 533 in a rotatable manner. After the first shaft rod 523 and the second shaft rod 533 respectively pass through the two lugs 57, 57', they respectively pass through the first torsional positioning assembly 54 and the second torsional positioning assembly 55, and a first end seal 541 and a second end seal 551 are respectively used to lock the first shaft rod 523 and the second shaft rod 533, so as to respectively fix and compress the first torsional positioning assembly 54 and the second torsional positioning assembly 55. Furthermore, during the process of the relatively bent two halves of the flexible screen being flipped to be closed or fully unfolded, they can rotate stably and freely stop at a certain angle during rotation.

[0141] The second synchronous connecting rod module 6 has the same outer shape and structure as the first synchronous connecting rod module 5, and is connected to the two end faces of the base 2 in the opposite direction. One end of the second synchronous connecting rod module 6 has a second side plate 61, and a fourth connecting portion 62 is provided on the second side plate 61. The fourth connecting portion 62 has a second clamping block 621, and the second clamping block 621 is clamped and connected to the second clamping groove 271 of the third connecting portion 27, so that the second synchronous connecting rod module 6 and the base 2 are mutually butted.

[0142] The second synchronous linkage module 6 has a third link 63 and a fourth link 64 that rotate in opposite directions. One end of the third link 63 is pivotally connected to the third pivoting portion 28 of the base 2. The other end of the third link 63 has a third guide rail 631, and the third guide rail 631 includes a third elongated slot 632. The third guide post 351 of the third guiding portion 35 is received and limited within the third elongated slot 632, and the third stop portion 352 presses against the side surface of the third link 63, so that the third guide rail 631 is connected to the third guiding portion 35 in a relatively linear movement manner and prevents the third link 63 from rubbing against the first connecting plate 31 of the first rotating member 3. Additionally, one end of the fourth link 64 is pivotally connected to the fourth pivoting portion 281 of the base 2. The other end of the fourth link 64 has a fourth guide rail 641, and the fourth guide rail 641 has a fourth elongated slot 642. The fourth guide post 451 of the fourth guiding portion 45 is received and limited within the fourth elongated slot 642, and the fourth stop portion 452 presses against the side surface of the fourth link 64, so that the fourth guide rail 641 is connected to the fourth guiding portion 45 in a relatively linear movement manner and prevents the fourth link 64 from rubbing against the second connecting plate 41 of the second rotating member 4. During implementation, the second synchronous linkage module 6 further has a third shaft rod 65 and a fourth shaft rod 651. One end of the third shaft rod 65 passes through the second side plate 61 to pivotally connect to the third pivoting portion 28 of the base 2. The other end of the third shaft rod 65 passes through a third torsional positioning assembly 66 and is locked to the other end of the third shaft rod 65 with a third end seal 661. One end of the fourth shaft rod 651 passes through the second side plate 61 to pivotally connect to the fourth pivoting portion 281 of the base 2. The other end of the fourth shaft rod 651 passes through a fourth torsional positioning assembly 67 and is locked to the other end of the fourth shaft rod 651 with a fourth end seal 671.

[0143] As Figures 8 to 10 shown, it is the second embodiment of the rotating shaft structure 1 of the flexible screen of the present utility model. The difference from the first embodiment is that: the first connecting portion 25 of the base 2 has a first tab 252 extending horizontally, the third connecting portion 27 of the base 2 has a third tab 272 extending horizontally, the second connecting portion 513 of the first synchronous linkage module 5 has a second tab 515 extending horizontally, the fourth connecting portion 62 of the second synchronous linkage module 6 has a fourth tab 622 extending horizontally. The second tab 515 overlaps the first tab 252, and the fourth tab 622 overlaps the third tab 272, and they are respectively fixed by screwing to a fifth connecting portion 71 and a sixth connecting portion 72 inside the top of the elongated bottom shell 7, and can also respectively dock the first synchronous linkage module 5 and the second synchronous linkage module 6 to both end faces of the base 2. Additionally, the first link 52 and the second link 53 are respectively composed of a plurality of first plate pieces 526 and a plurality of second plate pieces 536 stacked horizontally, and the third link 63 and the fourth link 64 are respectively formed by a plurality of third plate pieces 633 and a plurality of fourth plate pieces 643 stacked at intervals.

[0144] In summary, the present utility model can not only improve the appearance and disperse the structure of the first synchronous link module 5, the second synchronous link module 6 and the base 2, and be designed into a detachable and combinable composite structure to enhance the convenience during assembly, but also adopt different types of synchronous link modules as needed by replacing different combination modules and common modules. It is not only more flexible in product application, but also can effectively use common components to save costs. By the respective guide posts sliding relatively back and forth on the respective guide rails, not only can the tolerance generated when the two opposite rotating parts are folded be effectively filled, but also the smoothness during use can be increased, the influence of abnormal noise can be reduced, and the service life of the components can be extended. Moreover, each torsion unit (the first torsion positioning component 54 and the second torsion positioning component 55) can not only be integrally formed respectively, but also be composed of a plurality of plates (the third plate 633 and the fourth plate 643) stacked together. Thus, the overall thickness can be increased or decreased according to the specifications, and then the torsion force can be adjusted. This not only helps to reduce the volume and does not occupy space, is beneficial to the overall design of the electronic device to meet the market demand for the overall light and thin volume, but also can conveniently adjust the structural strength and be implemented correspondingly according to the actual situation to increase the flexibility in use.

[0145] Although the present utility model discloses preferred specific embodiments for achieving the above purposes, it does not limit the structural features of the present utility model. Any person skilled in the art of this technology should know that under the technical spirit of the present utility model, any easily conceived changes or modifications are possible and are all covered by the scope of the patent application of the present utility model.

Claims

1. A rotating shaft structure for a flexible screen, characterized in that, Comprising: A base having a first side and a second side arranged in parallel with a gap therebetween, with a first arc portion and a second arc portion in opposite directions between the first side and the second side; one end face of the base has a first pivot portion, a first connection portion and a second pivot portion; A first rotating member having a first arc connection portion at one end, the first arc connection portion connecting the first arc portion in a relatively arcuate swinging manner, and a first guiding portion on one side of the first rotating member; A second rotating member having a second arc connection portion at one end, the second arc connection portion connecting the second arc portion in a relatively arcuate swinging manner, and a second guiding portion on one side of the second rotating member; and A first synchronous linkage module having a first link and a second link that rotate in opposite directions, one end of the first link is pivotally connected to the first pivot portion of the base, the other end of the first link has a first guide rail, the first guide rail connects the first guiding portion in a relatively linear moving manner; one end of the second link is pivotally connected to the second pivot portion of the base, the other end of the second link has a second guide rail, the second guide rail connects the second guiding portion in a relatively linear moving manner; one end of the first synchronous linkage module has a second connection portion, the second connection portion connects the first connection portion for docking the first synchronous linkage module and the base.

2. The rotating shaft structure of the flexible screen according to claim 1, characterized in that The first connection portion of the base has a first card slot, and the second connection portion of the first synchronous linkage module has a first card block, the first card block connecting the first card slot.

3. The rotating shaft structure of the flexible screen according to claim 1, characterized in that The first connection portion of the base has a first tab, and the second connection portion of the first synchronous linkage module has a second tab, the second tab overlapping the first tab, and the second tab and the first tab simultaneously lock a fifth connection portion at the top of a long bottom case.

4. The rotating shaft structure of the flexible screen according to claim 1, characterized in that The first link has a plurality of first plate pieces stacked horizontally, and the second link has a plurality of second plate pieces stacked horizontally.

5. The rotating shaft structure of the flexible screen according to claim 1, characterized in that, The first guiding portion includes a first stop portion and a first guide post, the first guide rail includes a first long slot, the first stop portion presses against the first link, and the first guide post is limited in the first long slot in a relatively linear moving manner.

6. The rotating shaft structure of the flexible screen according to claim 1, characterized in that, The second guiding portion includes a second stop portion and a second guide post, the second guide rail includes a second long slot, the second stop portion presses against the second link, and the second guide post is limited in the second long slot in a relatively linear moving manner.

7. The rotating shaft structure of the flexible screen according to claim 1, characterized in that, The first synchronous linkage module has a first side plate, and the second connection portion is on the first side plate.

8. The rotating shaft structure of the flexible screen according to claim 7, characterized in that, The first synchronous linkage module further includes a first shaft rod and a second shaft rod, one end of the first shaft rod passes through one end of the first link and the first side plate to pivotally connect the first pivot portion of the base, the other end of the first shaft rod passes through a first torsional positioning component, and the other end of the first shaft rod is locked with a first end seal; one end of the second shaft rod passes through one end of the second link and the first side plate to pivotally connect the second pivot portion of the base, the other end of the second shaft rod passes through a second torsional positioning component, and the other end of the second shaft rod is locked with a second end seal.

9. The rotating shaft structure of the flexible screen according to claim 1, characterized in that, It further includes a second synchronous link module. The other end face of the base has a third pivoting portion, a third connecting portion, and a fourth pivoting portion; the other side of the first rotating member has a third guiding portion, and the other side of the second rotating member has a fourth guiding portion; the second synchronous link module has a third link and a fourth link that rotate in opposite directions. One end of the third link is pivotally connected to the third pivoting portion of the base. The other end of the third link has a third guide rail, and the third guide rail is connected to the third guiding portion in a relatively linearly moving manner; one end of the fourth link is pivotally connected to the fourth pivoting portion of the base. The other end of the fourth link has a fourth guide rail, and the fourth guide rail is connected to the fourth guiding portion in a relatively linearly moving manner; one end of the second synchronous link module has a fourth connecting portion, and the fourth connecting portion is connected to the third connecting portion for docking the second synchronous link module and the base.

10. The rotating shaft structure of the flexible screen according to claim 9, characterized in that, The third connecting portion of the base has a second card slot, and the fourth connecting portion of the second synchronous link module has a second card block, and the second card block is connected to the second card slot.

11. The rotating shaft structure of the flexible screen according to claim 9, characterized in that, The third connecting portion of the base has a third tab, and the fourth connecting portion of the second synchronous link module has a fourth tab. The fourth tab overlaps the third tab, and the fourth tab and the third tab simultaneously lock a sixth connecting portion at the top of an elongated bottom case.

12. The rotating shaft structure of the flexible screen according to claim 10 or 11, characterized in that, The third link has a plurality of third plates stacked horizontally, and the fourth link has a plurality of fourth plates stacked horizontally; the third guiding portion includes a third stopping portion and a third guide post, the third guide rail includes a third long slot, the third stopping portion presses against the third link, and the third guide post is limited in the third long slot in a relatively linearly moving manner; the fourth guiding portion includes a fourth stopping portion and a fourth guide post, the fourth guide rail includes a fourth long slot, the fourth stopping portion presses against the fourth link, and the fourth guide post is limited in the fourth long slot in a relatively linearly moving manner; the second synchronous link module has a second side plate, and the fourth connecting portion is provided on the second side plate.

13. The rotating shaft structure of the flexible screen according to claim 12, characterized in that, The second synchronous link module further includes a third shaft rod and a fourth shaft rod. One end of the third shaft rod passes through one end of the third link and the second side plate to pivotally connect to the third pivoting portion of the base. The other end of the third shaft rod passes through a third torsion positioning assembly, and the other end of the third shaft rod is locked with a third end seal; one end of the fourth shaft rod passes through one end of the fourth link and the second side plate to pivotally connect to the fourth pivoting portion of the base. The other end of the fourth shaft rod passes through a fourth torsion positioning assembly, and the other end of the fourth shaft rod is locked with a fourth end seal.

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