CN209959699U - Rotating shaft module of folding device - Google Patents

Abstract

The utility model discloses a rotary shaft module of a folding device comprises a first rotating part, wherein a first base of the first rotating part is connected with a first supporting part, a second base of a second rotating part is connected with a second supporting part, and the first base and the second base are respectively coaxially pivoted with a semicircular arc rotary shaft group so as to ensure that the first supporting part and the second supporting part are relatively turned over; the first tooth-shaped element of the first torsion transmission element is meshed with the second tooth-shaped element of the second torsion transmission element, and the at least one first sliding rod of the first torsion transmission element slides relatively in the first clamping part of the first rod sleeve, and the at least one second sliding rod of the second torsion transmission element slides relatively in the second clamping part of the second rod sleeve, so that stable torsion can be formed when a flexible display or two displays are folded or unfolded.

Description

Rotating shaft module of folding device

Technical Field

The present invention relates to a hinge module, and more particularly to a hinge module for a foldable device that can be unfolded or turned over relatively.

Background

The display and the base of a conventional foldable electronic device, such as a notebook computer, are respectively connected to the side of the display and the base through a single-axis hinge to form a pivot, so that the display can be turned over and opened or closed relative to the base. Since the flexible display device developed in recent years can be used with a foldable handheld electronic device, such a product becomes one of the items that the various tradesmen are interested in investing in development. For example, a foldable display device disclosed in patent application publication No. CN106205385A (hereinafter referred to as "front case 1") includes a flexible display panel, a first support member, a second support member, a first rotating plate, and a second rotating plate. Wherein the flexible display panel comprises first and second display regions and a curved display region between the two display regions, with first and second support members respectively underlying the two display regions and extending below first and second portions of the curved display region, respectively, with first and second rotating plates mounted for rotation about first and second axes, respectively, parallel to each other and extending towards edges of the first and second support members, respectively; in this way, in the unfolded state of the foldable display device, the two portions of the curved display region are respectively supported by the two support members, and the edges of the two support members are formed to be separated by a predetermined distance under the curved display region, and the two rotation plates respectively support a portion of the two support members and bend the curved display region with a predetermined curvature by the combination of the two rotation plates.

In the above prior art 1, the two rotating plates/supporting members are each pivotally connected at one end, and since the rotation center is the axis of the pivotal connection and is the basis for the rotation of the two rotating plates/supporting members, the overall thickness is not easily changed in practice and is easily limited by the diameter of the components such as the shaft and the pin, and thus the overall thickness cannot be effectively reduced; moreover, the first and second hinge components of the previous case 1 belong to a "dual-axis hinge/hinge" and have two rotation centers respectively, so that a certain distance needs to be maintained between the two axes for other structures of the two axes, such as the tooth-like structure disclosed in the previous case 1 to generate relative motion, and therefore, not only the overall size is not easily reduced, but also the bending curvature of the bending and folding portion of the flexible display device is not easily reduced after the foldable display device of the previous case 1 is folded in half.

In order to improve the above disadvantage of the prior art 1, the applicant proposed an improvement scheme, such as a "pivot module of a foldable device" (hereinafter referred to as the prior art 2) disclosed in the chinese utility model with application publication No. CN109488681A, wherein one end of a first rotating member is connected to a first supporting member, and the other end of the first rotating member has a first semicircular arc space, so as to pivotally connect a semicircular arc pivot set, and the first rotating member has a first rotating space and a first limiting space inside, so that a first supporting portion and the other end of the first oscillating member respectively limit the middle position of the first oscillating member, and the other end of the first oscillating member is pressed against a first elastic member, and one end of the first oscillating member is connected to the first rotating member; the second rotating part is internally provided with a second rotating space and a second limiting space, so that a second supporting part and the other end of the second swinging part which limit the middle position of the second swinging part respectively are limited, the other end of the second swinging part is pressed against a second elastic part, and one end of the second swinging part is connected with the second rotating part. Borrow this, can make first rotation piece, second rotation piece and semicircle pivot group sharing same center of rotation at whole exhibition ordinary times, effectively reduce the interval when closing between two organisms to reduce whole volume and make and be favorable to the design, and satisfy the market demand of whole volume slimming. And by adopting a structure similar to a seesaw, when the whole body is bent, the accommodating space can be made to accommodate the bent middle part of the flexible display device, and when the whole body is unfolded, the flat middle part of the flexible display device can be supported.

However, in the structure disclosed in the "hinge module of a foldable device" of the prior art 2, during the process of the two rotating members being turned over to open or close, the spring pins can generate enough torque to provide a supporting function, but the control means for keeping the torque within the predetermined range is absent during the continuous turning, so that the torque generated by each rotating member is not easy to be kept within the predetermined range during the continuous turning (for example, the torque generated by each turning angle is inconsistent or out of the predetermined range).

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a rotating shaft module of a foldable device, so as to solve the problem of the prior art 1 that the whole volume is large and is not beneficial to the whole design, so as to effectively reduce the whole thickness to be beneficial to the design and reduce the influence caused by the sizes of other components; the problems that effective synchronous linkage is lacked, the torsion is maintained, and a control means for supporting the torsion in a coordinated and stable manner is used for solving the problems that the effective synchronous linkage is lacked, the torsion is maintained, the torsion is supported in a coordinated and stable manner and the like in the prior art 2 are solved, synchronous actuation is formed through a gear, a sliding rod is driven to slide relative to a rod sleeve to form the torsion, so that the supporting effect of the torsion in the coordinated and stable manner is continued, the load can be shared together, and after multiple; after the rotating shaft is opened, a good positioning effect can be provided, so that the display turned and opened cannot naturally fall under the action of the gravity of the display.

The present invention has two embodiments, the first embodiment is to connect the rotating shaft module of the folding device to the first supporting member and the second supporting member respectively, so as to link the first supporting member and the second supporting member, so that the first supporting member and the second supporting member are relatively turned over, and the first supporting member and the second supporting member are connected to a flexible display at the same time; the rotating shaft module comprises a first rotating member, a second rotating member, a semicircular arc rotating shaft group, at least one first torsion transmission member and at least one second torsion transmission member. The first rotating part comprises a first base and a first cover plate, one end of the first base is connected with the first supporting part, and the first cover plate is connected with the first base in a relatively arc-shaped swinging mode; the second rotating part comprises a second base and a second cover plate, one end of the second base is connected with the second supporting part, and the second cover plate is connected with the second base in a relatively arc-shaped swinging mode; the semi-arc rotating shaft group is coaxially pivoted with the first base and the second base respectively to position the first rotating part and the second rotating part to turn over relatively; the first torsion transmission piece comprises a first tooth-shaped piece, at least one first sliding rod and a first rod sleeve, wherein one end of the first tooth-shaped piece is provided with a first tooth-shaped part, the other end of the first tooth-shaped piece is pivoted with the at least one first sliding rod, the first rod sleeve is connected with the first base, and the first rod sleeve is provided with a first clamping part, so that the at least one first sliding rod can slide relatively after penetrating through the first clamping part to form torsion; the second torsion transmission part comprises a second tooth-shaped part, at least one second sliding rod and a second rod sleeve, wherein one end of the second tooth-shaped part is provided with a second tooth-shaped part, the second tooth-shaped part is meshed with the first tooth-shaped part, the other end of the second tooth-shaped part is pivoted with the at least one second sliding rod, the second rod sleeve is connected with the second base, and the second rod sleeve is provided with a second clamping part, so that the at least one second sliding rod slides relatively after penetrating through the second clamping part to form torsion.

When the device is implemented, the first base comprises a first end part and a first body, one end of the first end part is connected with the first supporting piece, and a first rotating space and a first limiting space which are communicated are arranged in the first end part; one end of the first swinging piece is connected with the first cover plate, the other end of the first swinging piece is limited in the first limiting space and abuts against the first elastic piece, a first supporting part is arranged in the middle of the first swinging piece, and the first supporting part is positioned in the first rotating space so that two ends of the first swinging piece reversely swing.

When the first rotating space is used, the first supporting part is a lug with an outer arc surface, and the first rotating space is a space with an inner arc surface so as to support the outer arc surface.

When the device is implemented, the second base comprises a second end part and a second body, one end of the second end part is connected with the second supporting piece, and a second rotating space and a second limiting space which are communicated are arranged in the second end part; one end of the second swinging piece is connected with the second cover plate, the other end of the second swinging piece is limited in the second limiting space and abuts against the second elastic piece, a second supporting part is arranged in the middle of the second swinging piece, and the second supporting part is positioned in the second rotating space so that two ends of the second swinging piece swing reversely.

When the second support part is used, the second support part is a lug with an outer arc surface, and the second rotating space is a space with an inner arc surface so as to support the outer arc surface.

When the first rod sleeve is implemented, the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is a bending plate which extends outwards from the plate surface of the first base plate and has flexibility, and the first clamping part is parallel to the first base plate and forms a first space. When the clamping device is applied, the opposite surfaces of the first clamping part and the first substrate are respectively provided with a first upper limiting groove and a first lower limiting groove, so that the first clamping part and the first substrate are respectively abutted against and limit the first sliding rod.

When the first rod sleeve is implemented, the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is two flexible bending plates which extend outwards from the plate surface of the first base plate, and the two bending plates are parallel to the first base plate and form a first space.

When the second rod sleeve is implemented, the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is a bending plate which extends outwards from the plate surface of the second base plate and has flexibility, and the second clamping part is parallel to the second base plate and forms a second space.

When the clamping device is applied, the opposite surfaces of the second clamping part and the second substrate are respectively provided with a second upper limiting groove and a second lower limiting groove, so that the second sliding rod is respectively abutted and limited.

When the second rod sleeve is implemented, the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is two flexible bending plates which extend outwards from the plate surface of the second base plate, and the two bending plates are parallel to the second base plate and form a second space.

The second embodiment of the present invention is provided with a hinge module of another foldable device, which is connected to the first supporting member and the second supporting member respectively, so as to link the first supporting member and the second supporting member, so that the first supporting member and the second supporting member are relatively turned over, and the first supporting member and the second supporting member are connected to a display respectively; the rotating shaft module comprises a first rotating member, a second rotating member, a semicircular arc rotating shaft group, at least one first torsion transmission member and at least one second torsion transmission member. The first rotating part comprises a first base, and one end of the first base is connected with the first supporting part; the second rotating part comprises a second base, and one end of the second base is connected with the second supporting part; the semi-arc rotating shaft group is coaxially pivoted with the first base and the second base respectively to position the first rotating part and the second rotating part to turn over relatively; the first torsion transmission piece comprises a first tooth-shaped piece, at least one first sliding rod and a first rod sleeve, wherein one end of the first tooth-shaped piece is provided with a first tooth-shaped part, the other end of the first tooth-shaped piece is pivoted with the at least one first sliding rod, the first rod sleeve is connected with the first base, and the first rod sleeve is provided with a first clamping part, so that the at least one first sliding rod can slide relatively after penetrating through the first clamping part to form torsion; the second torsion transmission part comprises a second tooth-shaped part, at least one second sliding rod and a second rod sleeve, wherein one end of the second tooth-shaped part is provided with a second tooth-shaped part, the second tooth-shaped part is meshed with the first tooth-shaped part, the other end of the second tooth-shaped part is pivoted with the at least one second sliding rod, the second rod sleeve is connected with the second base, and the second rod sleeve is provided with a second clamping part, so that the at least one second sliding rod slides relatively after penetrating through the second clamping part to form torsion.

When the first rod sleeve is implemented, the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping portion is a bending plate which extends outwards from the plate surface of the first base plate and has flexibility, and the first clamping portion is parallel to the first base plate and forms a first space.

When the clamping device is applied, the opposite surfaces of the first clamping part and the first substrate are respectively provided with a first upper limiting groove and a first lower limiting groove, so that the first clamping part and the first substrate are respectively abutted against and limit the first sliding rod.

When the first rod sleeve is implemented, the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is two flexible bending plates which extend outwards from the plate surface of the first base plate, and the two bending plates are parallel to the first base plate and form a first space.

When the second rod sleeve is implemented, the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is a bending plate which extends outwards from the plate surface of the second base plate and has flexibility, and the second clamping part is parallel to the second base plate and forms a second space.

When the clamping device is applied, the opposite surfaces of the second clamping part and the second substrate are respectively provided with a second upper limiting groove and a second lower limiting groove, so that the second sliding rod is respectively pressed and limited.

When the second rod sleeve is implemented, the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is two flexible bending plates which extend outwards from the plate surface of the second base plate, and the two bending plates are parallel to the second base plate and form a second space.

The following is directed to the two embodiments described above, with additional features in common being further defined:

when the device is implemented, one end of the semicircular arc rotating shaft group is provided with a first semicircular arc space, and one end of the second base, which is opposite to the second supporting piece, is provided with a semicircular arc piece which is coaxially pivoted and positioned in the first semicircular arc space; the opposite end of the semi-arc rotary shaft group is provided with a second semi-arc space, and one end of the first base, which is opposite to the first supporting piece, is provided with an arc guide sheet which is coaxially pivoted and positioned in the second semi-arc space.

When the device is implemented, the first rod sleeve and the second rod sleeve are formed by stacking and connecting a plurality of plate sheets respectively.

The utility model has the advantages that:

1. the utility model discloses can make first rotation piece, second rotate and the same center of rotation of semicircle pivot group sharing at ordinary times at whole exhibition, consequently, can effectively reduce the interval when closed between first support piece and the second support piece to reduce whole volume and make and be favorable to the design, and satisfy the slim market demand of whole volume.

2. The utility model discloses a first swing piece and second swing piece can produce the free swing effect of similar seesaw when whole is buckled and is opened flat, and need not to pin joint any end like prior art, consequently, when whole is buckled, can give out a accommodation space in order to hold flexible display's crooked form middle part, and when whole exhibition, then can form stable support to flexible display's exhibition form middle part.

3. The utility model discloses form synchronous reverse action with the first profile of tooth portion of first profile of tooth and the second profile of tooth portion of second profile of tooth, drive an at least slide bar respectively and slide for the rod cover and form torsion, not only can make first, the second of same rotation center rotate the piece and form synchronous relative upset, also can make first, second support piece can stabilize and freely stagnate when rotating on certain angle.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1: the utility model discloses a schematic three-dimensional appearance diagram of a first embodiment;

FIG. 2: section A-A' of FIG. 1;

FIG. 3: FIG. 1 is a sectional view taken along line B-B';

FIG. 4: the element of the first embodiment of the present invention is exploded;

FIG. 5: the first and second torsion driving parts are exploded;

FIG. 6: a schematic perspective view of another structure of the first and second torque transmission members;

FIG. 7: the section schematic diagram of the first embodiment of the utility model when folded;

FIG. 8: the section schematic diagram of the first embodiment of the utility model when folded;

FIG. 9: the utility model discloses a three-dimensional appearance sketch map of second embodiment

FIG. 10: FIG. 9 is a cross-sectional view taken along line C-C';

FIG. 11: FIG. 9 is a cross-sectional view taken along line D-D';

FIG. 12: the section schematic diagram of the second embodiment of the utility model when folded;

FIG. 13: the second embodiment of the present invention is a schematic cross-sectional view in the folded state.

Description of the reference numerals

1 Pivot module of a folding device

2 first rotating member

21 first base

22 first cover plate

23 first end portion

231 first rotation space

232 first limit space

233 first elastic member

24 first body

241 guiding piece

25 first oscillating member

251 first supporting part

3 second rotating member

31 second base

32 second cover plate

33 second end portion

331 second rotating space

332 second limit space

333 second elastic member

334 semi-arc sheet

34 second body

35 second oscillating member

351 second supporting part

4 semicircular arc rotating shaft group

41 semi-annular body

42 first semicircular arc space

43 second semi-circular arc space

5 first torsion Transmission element

51 first tooth profile

511 first tooth profile part

52 first slide bar

53 first rod sleeve

531 first substrate

532 first clamping part

533. 534, 633, 634 bending plate

535 first space

536 a first upper limiting groove

537 first lower limiting groove

538. 638 sheet

6 second torsion driving member

61 second toothed element

611 second tooth-shaped part

62 second slide bar

63 second rod sleeve

631 second substrate

632 second clamping part

635 second space

636 second upper limiting groove

637 second lower limiting groove

9 first support

91 second support

92 flexible display

93. 94 display

95 accommodating space.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1 and 2, a hinge module 1 of the foldable device of the present invention includes a first rotating member 2, a second rotating member 3, a semicircular arc-shaped hinge set 4, at least one first torque transmission member 5 and at least one second torque transmission member 6. One end of the first base 21 of the first rotating member 2 is connected to a side edge of a first supporting member 9 of a display of an electronic device, and one end of the second base 31 of the second rotating member 3 is connected to a side edge of a second supporting member 91 of a base of the electronic device, so that when the first rotating member 2 and the second rotating member 3 rotate relatively around the semi-arc rotating shaft group 4, respectively, the display and the base are turned over relatively, and a flexible display 92 or two displays (93, 94) as shown in fig. 10, which are combined on the first supporting member 9 and the second supporting member 91, are folded or unfolded.

As shown in fig. 2 to 5, it is a first embodiment of the hinge module 1 of the folding device of the present invention, which comprises a first rotating member 2, a second rotating member 3, a semicircular arc rotating shaft set 4, two first torque transmission members 5 and two second torque transmission members 6.

The first rotating member 2 includes a first base 21 and a first cover 22, the first base 21 includes two symmetrical first end portions 23 and a first body 24, for example, the first end portion 23 is an end of the first end portion 23 locked to the first supporting member 9; first end 23 is provided with a first rotation space 231 and a first spacing space 232 therein, first rotation space 231 is a space with an inner arc-shaped surface, a groove is provided in first spacing space 232 for accommodating and positioning a compression spring, the compression spring is used as a first elastic member 233, and first spacing space 232 and first rotation space 231 are communicated with each other through an arc-shaped channel. The first body 24 is overlapped and connected to one end of the first end portion 23, and two spaced arc-shaped guide pieces 241 are arranged in the middle of the first body 24. The first cover 22 is disposed opposite to the first base 21, so that one surface of the first cover 22 and one surface of the first base 21 are on the same plane to connect a portion of the flexible display 92. A first swinging member 25 is a plate, one end of the first swinging member 25 is connected to the other side of the first cover plate 22, and the other end of the first swinging member 25 is limited in the first limiting space 232 and presses against the first elastic member 233; a projection with an outer arc surface is disposed at the middle position of the first swinging member 25, and the projection is used as a first supporting portion 251, is accommodated in the first rotating space 231 of the first end portion 23, and correspondingly presses against the inner arc surface of the first rotating space 231, so that the first cover plate 22 can be connected to the first base 21 in a relatively arc-shaped swinging manner.

The second rotating member 3 includes a second base 31 and a second cover 32, the second base 31 includes two symmetrically disposed second ends 33 and a second body 34, for example, a second end 33, one end of the second end 33 is locked to the second supporting member 91; the second end 33 has a second rotation space 331 and a second limiting space 332 therein, the second rotation space 331 is a space having an inner arc-shaped surface, the second limiting space 332 has a groove therein for accommodating and positioning a compression spring, the compression spring is used as a second elastic member 333, and the second limiting space 332 and the second rotation space 331 are communicated with each other through an arc-shaped channel; one side end of the second end portion 33 has a semicircular arc piece 334 to be mounted on the end edge of the first end portion 23 of the first base 21. The second body 34 overlaps and is connected to one end of the second end portion 33, and two arc-shaped guiding pieces 241 (as shown in fig. 1) of the first base 21 can be correspondingly installed on the corresponding side end edges of the second body 34. The second cover 32 is disposed opposite to the second base 31, so that one surface of the second cover 32 and one surface of the second base 31 are on the same plane to connect another portion of the flexible display 92. A second swinging member 35 is a plate, one end of the second swinging member 35 is connected to the other side of the second cover plate 32, and the other end of the second swinging member 35 is limited in the second limiting space 332 and abuts against the second elastic member 333; a projection with an outer arc surface is disposed at the middle position of the second swinging member 35, and the projection is used as a second supporting portion 351 to be accommodated in the second rotating space 331 of the second end portion 33 and to correspondingly press against the inner arc surface of the second rotating space 331, so that the second cover plate 32 can be connected to the second base 31 in a relatively arc swinging manner.

The two ends of the semi-circular arc rotating shaft group 4 are respectively provided with a semi-circular ring 41, so that the semi-circular arc rotating shaft group 4 is in bridge connection with the two arc guiding sheets 241 of the first body 24, the two opposite ends of each semi-circular ring 41 are respectively provided with a first semi-circular space 42 and a second semi-circular space 43, the two semi-circular rings 41 are symmetrically arranged, the semi-circular sheets 334 of each second base 31 are respectively axially extended and inserted into the first semi-circular spaces 42 of each semi-circular ring 41, and then the two arc guiding sheets 241 of the first body 24 are respectively axially extended and inserted into the second semi-circular spaces 43 of each semi-circular ring 41, so that the semi-circular arc rotating shaft group 4 is respectively coaxially pivoted to position the first base 21 and the second base 31, and the first rotating member 2 and the second rotating member 3 can be stably and relatively turned over.

The two first torque transmission members 5 are connected to the first body 24 at intervals, each first torque transmission member 5 includes a first tooth member 51, at least one first sliding rod 52 and a first rod sleeve 53, in this embodiment, two first sliding rods 52 are provided. One end of the first tooth-shaped member 51 is provided with a first tooth-shaped part 511, and the other end of the first tooth-shaped member 511 is pivoted with two first sliding rods 52 which are parallel and have intervals; the first lever sleeve 53 includes a first base plate 531, the first base plate 531 is locked to the first body 24 of the first base 21, the first base plate 531 has a first clamping portion 532, and the first clamping portion 532 is composed of two bending plates (533, 534). The two bending plates (533, 534) extend outwards from the plate surface of the first substrate 531 and are parallel to the first substrate 531, a first space 535 is formed between the two bending plates (533, 534) and the first substrate 531, and free ends of the two bending plates (533, 534) are linearly opposite to each other and form a space, so that the two bending plates (533, 534) are flexible respectively; in addition, the opposite surfaces of the two bending plates (533, 534) and the first base plate 531 respectively have two first upper limiting grooves 536 and two first lower limiting grooves 537, so that the two first sliding rods 52 respectively pass through and respectively press and limit the two first sliding rods 52. In practice, the first slide rod 52 can be one, the first clamping portion 532 is a flexible bending plate 533, and the opposing surfaces of the bending plate 533 and the first base plate 531 respectively have a first upper limiting groove 536 and a first lower limiting groove 537, which can also press and limit the first slide rod 52, so as to form a resistance force when the first slide rod 52 slides relatively.

The two second torque transmission members 6 are connected to the second body 34 at intervals, and each second torque transmission member 6 includes a second tooth 61, at least one second sliding rod 62 and a second rod sleeve 63, in this embodiment, there are two second sliding rods 62. One end of the second toothed element 61 is provided with a second toothed portion 611, the second toothed portion 611 is engaged with the corresponding first toothed portion 511, and the other end of the second toothed portion 611 is pivoted with two second sliding rods 62 which are parallel and spaced; the second rod sleeve 63 includes a second base plate 631, the second base plate 631 is locked to the second body 34 of the second base 31, the second base plate 631 has a second clamping portion 632, and the second clamping portion 632 is composed of two bending plates (633, 634). The two bending plates (633, 634) extend outward from the plate surface of the second substrate 631 and are parallel to the second substrate 631, a second space 635 is formed between the two bending plates (633, 634) and the second substrate 631, and free ends of the two bending plates (633, 634) are linearly opposite to each other and form a gap, so that the two bending plates (633, 634) are flexible; in addition, the opposite surfaces of the two bending plates (633, 634) and the second base plate 631 respectively have two second upper limiting grooves 636 and two second lower limiting grooves 637, so that the two second sliding bars 62 respectively press and limit the two second sliding bars 62 after passing through the two second sliding bars 62 respectively. In practice, the second sliding rod 62 may be one, the second clamping portion 632 is a flexible bending plate 633, and the opposing surface of the bending plate 633 and the second base plate 631 respectively has a second upper limiting groove 636 and a second lower limiting groove 637, which can also press against the limiting second sliding rod 62 to form a resistance when the second sliding rod 62 slides relatively. The first rod sleeve 53 and the second rod sleeve 63 may be formed by stacking and connecting a plurality of plates (538, 638) as shown in fig. 6.

Therefore, as shown in fig. 1, fig. 2, fig. 7 and fig. 8, when the first supporting member 9 and the second supporting member 92 are turned relatively, the first base 21 and the second base 31 are respectively and coaxially pivoted and positioned by the semi-arc rotating shaft group 4, the arc-shaped guiding piece 241 of the first body 24 is limited in the second semi-arc space 43 of the semi-arc rotating shaft group 4, and the semi-arc piece 334 of the second base 31 is limited in the first semi-arc space 42 of the semi-arc rotating shaft group 4, so that the first rotating member 2 and the second rotating member 3 can be stably turned and bent relatively; in the process of relative rotation, besides the first tooth-shaped part 511 of the first tooth-shaped part 51 and the second tooth-shaped part 611 of the second tooth-shaped part 61 are engaged with each other to form synchronous motion, when the two first slide bars 52 relatively slide in the first clamping part 532 of the first bar sleeve 53 and the two second slide bars 62 relatively slide in the second clamping part 632 of the second bar sleeve 63, resistance is respectively formed to provide friction torque, so that the first support 9 and the second support 91 can freely stop at a certain angle during rotation. The seesaw-like effect generated by the first and second swinging members 25 and 35 can make a space 95 between the first and second rotating members 2 and 3 to accommodate the curved middle portion of the flexible display 92 when the whole body is bent.

Please refer to fig. 9 to 12, which are second embodiments of the hinge module 1 of the foldable device of the present invention, and the differences from the first embodiment are: the first supporting member 9 and the second supporting member 91 are respectively connected with a display (93, 94); the first rotating member 2 includes a first base 21, one end of the first base 21 is connected to the first supporting member 9, the second rotating member 3 includes a second base 31, one end of the second base 31 is connected to the second supporting member 91, the semi-circular rotating shaft group 4 is respectively and coaxially pivoted to position the first base 21 and the second base 31, the arc guiding piece 241 of the first body 24 is limited in the second semi-circular space 43 of the semi-circular rotating shaft group 4, and the semi-circular piece 334 of the second base 31 is limited in the first semi-circular space 42 of the semi-circular rotating shaft group 4, so that the first rotating member 2 and the second rotating member 3 are stably and relatively turned. The first tooth-shaped portion 511 of the first tooth-shaped member 51 and the second tooth-shaped portion 611 of the second tooth-shaped member 61 are engaged with each other to form a synchronous operation, and the two first sliding rods 52 slide relatively in the first clamping portion 532 of the first rod sleeve 53, and the two second sliding rods 62 slide relatively in the second clamping portion 632 of the second rod sleeve 63, which can also form resistance forces, respectively, so as to increase the friction torque force, so that the first supporting member 9 and the second supporting member 91 can freely stop at a certain angle during rotation.

Therefore, the utility model has the advantages of it is following:

1. the utility model discloses can make first rotation piece, second rotate and the same center of rotation of semicircle pivot group sharing at ordinary times at whole exhibition, consequently, can effectively reduce the interval when closed between first support piece and the second support piece to reduce whole volume and make and be favorable to the design, and satisfy the slim market demand of whole volume.

2. The utility model discloses a first swing piece and second swing piece can produce the free swing effect of similar seesaw when whole is buckled and is opened flat, and need not to pin joint any end like prior art, consequently, when whole is buckled, can give out a accommodation space in order to hold flexible display's crooked form middle part, and when whole exhibition, then can form stable support to flexible display's exhibition form middle part.

3. The utility model discloses form synchronous reverse action with the first profile of tooth portion of first profile of tooth and the second profile of tooth portion of second profile of tooth, drive an at least slide bar respectively and slide for the rod cover and form torsion, not only can make first, the second of same rotation center rotate the piece and form synchronous relative upset, also can make first, second support piece can stabilize and freely stagnate when rotating on certain angle.

The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims (22)

1. A rotating shaft module of a folding device is respectively connected with a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are simultaneously connected with a flexible display; it is characterized in that the rotating shaft module comprises: the first rotating part comprises a first base and a first cover plate, one end of the first base is connected with the first supporting part, and the first cover plate is connected with the first base in a relatively arc-shaped swinging mode;

the second rotating part comprises a second base and a second cover plate, one end of the second base is connected with the second supporting part, and the second cover plate is connected with the second base in a relatively arc-shaped swinging mode;

a semicircular arc rotating shaft group which is respectively and coaxially pivoted and positioned with the first base and the second base;

the first torsion transmission piece comprises a first tooth-shaped piece, at least one first sliding rod and a first rod sleeve, wherein one end of the first tooth-shaped piece is provided with a first tooth-shaped part, the other end of the first tooth-shaped piece is pivoted with the at least one first sliding rod, the first rod sleeve is connected with the first base, and the first rod sleeve is provided with a first clamping part which enables the first sliding rod to relatively slide after penetrating through the first clamping part so as to form torsion; and

the second torsion transmission part comprises a second tooth-shaped part, at least one second sliding rod and a second rod sleeve, one end of the second tooth-shaped part is provided with a second tooth-shaped part, the second tooth-shaped part is meshed with the first tooth-shaped part, the other end of the second tooth-shaped part is pivoted with the at least one second sliding rod, the second rod sleeve is connected with the second base, and the second rod sleeve is provided with a second clamping part which enables the second sliding rod to relatively slide after penetrating through the second clamping part so as to form torsion.

2. A hinge module of a folding device according to claim 1, characterized in that: the first base comprises a first end part and a first body, one end of the first end part is connected with the first supporting part, and a first rotating space and a first limiting space which are communicated are arranged in the first end part; one end of a first swinging piece is connected with the first cover plate, the other end of the first swinging piece is limited in the first limiting space and is pressed against a first elastic piece, a first supporting part which enables the two ends of the first swinging piece to swing reversely is arranged in the middle of the first swinging piece, and the first supporting part is positioned in the first rotating space.

3. A hinge module of a folding device according to claim 2, characterized in that: the first supporting part is a lug with an outer arc surface, and the first rotating space is a space with an inner arc surface for supporting the outer arc surface.

4. A hinge module of a folding device according to claim 1, characterized in that: the second base comprises a second end part and a second body, one end of the second end part is connected with the second supporting part, and a second rotating space and a second limiting space which are communicated are arranged in the second end part; one end of a second swinging piece is connected with the second cover plate, the other end of the second swinging piece is limited in the second limiting space and is pressed against a second elastic piece, a second supporting part of the second swinging piece, the two ends of which swing reversely, is arranged in the middle of the second swinging piece, and the second supporting part is positioned in the second rotating space.

5. The hinge module of a folding device of claim 4, further comprising: the second supporting portion is a projection having an outer arc surface, and the second rotating space is a space having an inner arc surface supporting the outer arc surface.

6. A hinge module of a folding device according to any one of claims 1 to 5, characterized in that: the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is a bending plate which extends outwards from the plate surface of the first base plate and has flexibility, and the first clamping part is parallel to the first base plate and forms a first space.

7. The hinge module of a folding device of claim 6, further comprising: the opposite surfaces of the first clamping part and the first substrate are respectively provided with a first upper limit groove and a first lower limit groove which are used for abutting against and limiting the first slide bar.

8. A hinge module of a folding device according to any one of claims 1 to 5, characterized in that: the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is two flexible bending plates which extend outwards from the plate surface of the first base plate, and the two bending plates are parallel to the first base plate and form a first space.

9. A hinge module of a folding device according to any one of claims 1 to 5, characterized in that: the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is a bending plate which extends outwards from the plate surface of the second base plate and has flexibility, and the second clamping part is parallel to the second base plate and forms a second space.

10. The hinge module of a folding device of claim 9, further comprising: the opposite surfaces of the second clamping part and the second substrate are respectively provided with a second upper limit groove and a second lower limit groove which are used for abutting against and limiting the second slide bar.

11. A hinge module of a folding device according to any one of claims 1 to 5, characterized in that: the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is two flexible bending plates which extend outwards from the plate surface of the second base plate, and the two bending plates are parallel to the second base plate and form a second space.

12. A hinge module of a folding device according to claim 1, characterized in that: one end of the semicircular arc rotating shaft group is provided with a first semicircular arc space, and one end of the second base, which is opposite to the second supporting piece, is provided with a semicircular arc piece which is coaxially pivoted and positioned in the first semicircular arc space; the opposite end of the semi-arc rotary shaft group is provided with a second semi-arc space, and one end of the first base, which is opposite to the first supporting piece, is provided with an arc guide sheet which is coaxially pivoted and positioned in the second semi-arc space.

13. A hinge module of a folding device according to claim 1, characterized in that: the first rod sleeve and the second rod sleeve are formed by stacking and connecting a plurality of plates respectively.

14. A rotating shaft module of a folding device is respectively connected with a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are respectively connected with a display; it is characterized in that the rotating shaft module comprises:

a first rotating member including a first base, one end of the first base being connected to the first supporting member;

a second rotating part including a second base, one end of the second base being connected to the second supporting part;

a semicircular arc rotating shaft group which is respectively and coaxially pivoted and positioned with the first base and the second base;

the first torsion transmission piece comprises a first tooth-shaped piece, at least one first sliding rod and a first rod sleeve, wherein one end of the first tooth-shaped piece is provided with a first tooth-shaped part, the other end of the first tooth-shaped piece is pivoted with the at least one first sliding rod, the first rod sleeve is connected with the first base, and the first rod sleeve is provided with a first clamping part which enables the first sliding rod to relatively slide after penetrating through the first clamping part so as to form torsion; and

the second torsion transmission part comprises a second tooth-shaped part, at least one second sliding rod and a second rod sleeve, one end of the second tooth-shaped part is provided with a second tooth-shaped part, the second tooth-shaped part is meshed with the first tooth-shaped part, the other end of the second tooth-shaped part is pivoted with the at least one second sliding rod, the second rod sleeve is connected with the second base, and the second rod sleeve is provided with a second clamping part which enables the second sliding rod to relatively slide after penetrating through the second clamping part so as to form torsion.

15. The hinge module of a folding device of claim 14, further comprising: one end of the semicircular arc rotating shaft group is provided with a first semicircular arc space, and one end of the second base, which is opposite to the second supporting piece, is provided with a semicircular arc piece which is coaxially pivoted and positioned in the first semicircular arc space; the opposite end of the semi-arc rotary shaft group is provided with a second semi-arc space, and one end of the first base, which is opposite to the first supporting piece, is provided with an arc guide sheet which is coaxially pivoted and positioned in the second semi-arc space.

16. The hinge module of a folding device of claim 14, further comprising: the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is a bending plate which extends outwards from the plate surface of the first base plate and has flexibility, and the first clamping part is parallel to the first base plate and forms a first space.

17. The hinge module of a folding device of claim 16, further comprising: the opposite surfaces of the first clamping part and the first substrate are respectively provided with a first upper limit groove and a first lower limit groove which are used for abutting against and limiting the first slide bar.

18. The hinge module of a folding device of claim 14, further comprising: the first rod sleeve comprises a first base plate, the first base plate is connected with the first base, the first clamping part is two flexible bending plates which extend outwards from the plate surface of the first base plate, and the two bending plates are parallel to the first base plate and form a first space.

19. The hinge module of a folding device of claim 14, further comprising: the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is a bending plate which extends outwards from the plate surface of the second base plate and has flexibility, and the second clamping part is parallel to the second base plate and forms a second space.

20. The hinge module of a folding device of claim 19, further comprising: the opposite surfaces of the second clamping part and the second substrate are respectively provided with a second upper limit groove and a second lower limit groove which are used for abutting against and limiting the second slide bar.

21. The hinge module of a folding device of claim 14, further comprising: the second rod sleeve comprises a second base plate, the second base plate is connected with the second base, the second clamping part is two flexible bending plates which extend outwards from the plate surface of the second base plate, and the two bending plates are parallel to the second base plate and form a second space.

22. The hinge module of a folding device of claim 14, further comprising: the first rod sleeve and the second rod sleeve are formed by stacking and connecting a plurality of plates respectively.

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