CN113383172A - Hinge, hinge device and electronic device - Google Patents

Abstract

An electronic device (100) comprises a flexible screen (30), a shell (20) and a hinge device (24), wherein the shell (20) comprises a first frame body (21) and a second frame body (23), the hinge device (24) is arranged between the first frame body (21) and the second frame body (23), the flexible screen (30) is arranged on the shell (20), the hinge device (24) comprises a hinge main body (25), at least one linkage mechanism (26) and a connecting mechanism (27) connected between the linkage mechanism (26) and the hinge main body (25), the hinge main body (25) comprises connecting hinges (251) positioned on two opposite sides of the hinge main body and rotating hinges (253) positioned between the two connecting hinges (251), the two connecting hinges (251) are respectively connected to the first frame body (21) and the second frame body (23), the linkage mechanism (26) comprises connecting rod pieces (261) respectively connected to the two connecting hinges (251), when one of the link members (261) rotates towards one side, the linkage mechanism (26) drives the other link member (261) to rotate towards the same side, the other link member (261) drives the other connecting hinge (251) to rotate towards the same side, and the connecting mechanism (27) drives the rotating hinge (253) to rotate towards the same side, so that the first frame body (21) and the second frame body (23) can be conveniently drawn together or flattened, and the hinge device (24) can adapt to a supporting structure with the bending requirement of the flexible screen (30).

Description

Hinge, hinge device and electronic device Technical Field

The application relates to the field of flexible screen support, in particular to a hinge for supporting a flexible screen, a hinge device provided with the hinge, and an electronic device provided with the hinge device.

Background

With the development of display devices, a bendable ultrathin electronic display screen, i.e., a flexible display screen, has appeared. Compared with the traditional display device, the flexible display screen has the advantages of being foldable, transparent, curved, flexible, stretchable and the like, and is widely favored by consumers. Because the foldable flexible display screen needs to be bent, the existing flat plate type supporting structure obviously cannot meet the requirement, and therefore, a supporting structure capable of meeting the bending requirement of the flexible display screen is needed to be provided.

Disclosure of Invention

The application provides a can satisfy flexible display screen bending demand the hinge, be provided with the hinge means of hinge, and be provided with hinge means's electron device.

The application provides a hinge, including link gear and connect in link gear's coupling mechanism, link gear includes a plurality of linkage pieces that rotate the connection, and coupling mechanism includes a plurality of connecting pieces that rotate the connection, and when adjacent linkage piece rotated relatively, link gear drive adjacent connecting piece rotated relatively and made the hinge buckle.

The application still provides a hinge means, include the hinge main part, be located the link gear of the at least one end of hinge main part, and connect in link gear with coupling mechanism between the hinge main part, the hinge main part is including the connecting hinge festival that is located its relative both sides and being located two rotation hinge festival between the connecting hinge festival, link gear is including connecting respectively in two the connecting rod piece of connecting the hinge festival, when one of them connecting rod piece rotates towards one side along with the connecting hinge festival that corresponds, link gear drives another connecting rod piece and also rotates towards the homonymy, another connecting rod piece drives another connecting hinge festival and also rotates towards the homonymy, link gear passes through coupling mechanism drives and rotates the hinge festival and also rotates towards the homonymy.

The application also provides an electronic device, which comprises a flexible screen, a shell and a hinge device, wherein the shell comprises a first frame body and a second frame body, the hinge device is arranged between the first frame body and the second frame body, the flexible screen is arranged on the shell and the hinge device, the hinge device comprises a hinge main body, a linkage mechanism positioned at least one end of the hinge main body, and a connecting mechanism connected between the linkage mechanism and the hinge main body, the hinge main body comprises connecting hinges positioned at two opposite sides of the hinge main body and rotating hinges positioned between the two connecting hinges, the two connecting hinges are respectively connected with the first frame body and the second frame body, the linkage mechanism comprises connecting rod pieces respectively connected with the two connecting hinges, when one connecting rod piece rotates towards one side along with the corresponding first frame body or the corresponding second frame body, the linkage mechanism drives the other connecting rod piece to rotate towards the same side, the other connecting rod piece drives the other connecting hinge joint to rotate towards the same side, and the linkage mechanism drives the rotating hinge joint to rotate towards the same side through the connecting mechanism, so that the first frame body and the second frame body are mutually closed or unfolded, and the flexible screen is bent or unfolded.

The hinge device of the electronic device comprises a hinge main body, a linkage mechanism connected to the hinge main body and a connecting mechanism connected between the linkage mechanism and the hinge main body. The connecting hinge joint of the hinge main body is connected to the connecting rod piece of the linkage mechanism, and the rotating hinge joint of the hinge main body is connected to the linkage mechanism through the connecting mechanism. When one of them link member of link gear rotates towards one side along with the connection hinge that corresponds, link gear drives another link member and also rotates towards the homonymy, another link member drives another connection hinge and also rotates towards the homonymy, link gear drives and rotates the hinge and also rotates towards the homonymy to make things convenient for bending and the exhibition of hinge means, so that hinge means can adapt to the bearing structure of flexible screen bending requirement.

Drawings

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

Fig. 1 is a schematic perspective view of an electronic device in an embodiment of the present application.

Fig. 2 is an exploded perspective view of the flexible display and the housing of the electronic device in fig. 1.

Fig. 3 is an exploded schematic view of the housing of fig. 2.

Fig. 4 is a partially exploded perspective view of the hinge assembly of the housing of fig. 3.

Fig. 5 is a perspective view of the hinge device of fig. 4 from another perspective.

Fig. 6 is a further exploded perspective view of the hinge assembly of fig. 4.

Fig. 7 is a further exploded perspective view of the hinge assembly of fig. 5.

Fig. 8 is an enlarged perspective view of one of the linkages of the hinge device of fig. 6.

Fig. 9 is an enlarged perspective view from another perspective of the linkage mechanism of fig. 8.

Fig. 10 is a partially exploded perspective view of the linkage of fig. 8.

Fig. 11 is a perspective view from another perspective of the linkage mechanism of fig. 10.

Fig. 12 is a further exploded perspective view of the linkage mechanism of fig. 10.

Fig. 13 is a further exploded perspective view of the linkage mechanism of fig. 11.

Fig. 14 is an enlarged view of a portion of the components at one end of the hinge body of fig. 6.

Fig. 15 is an enlarged view of a portion of the element at the other end of the hinge body of fig. 6.

Fig. 16 is a perspective cross-sectional view of the first mount of fig. 14.

Fig. 17 is a perspective cross-sectional view of the second mount of fig. 14.

Fig. 18 is a perspective assembly structure diagram of fig. 14.

Fig. 19 is a perspective assembly view of fig. 15.

Fig. 20 is a sectional view taken along line XX-XX in fig. 4.

Fig. 21 is a sectional view taken along line XXI-XXI in fig. 4.

Fig. 22 is a sectional view taken along line XXII-XXII in fig. 3.

Fig. 23 is a perspective view illustrating a bent state of the hinge device of the electronic device in fig. 1.

Fig. 24 is a perspective view illustrating a bent state of the hinge device of the electronic device according to the present application.

Fig. 25 is a sectional view taken along line XXV-XXV in fig. 24.

Fig. 26 is a sectional view taken along line XXVI-XXVI in fig. 24.

Fig. 27 is a sectional view taken along line XXVII-XXVII in fig. 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Referring to fig. 1 to 7, an electronic device 100 according to an embodiment of the present disclosure includes a housing 20 and a flexible screen 30 disposed on the housing 20. The housing 20 includes a first frame 21, a second frame 23, and a hinge device 24 connected between the first frame 21 and the second frame 23. The flexible panel 30 is provided on the first housing 21, the second housing 23, and the hinge device 24. The flexible screen 30 is provided with a bendable region 31 corresponding to the hinge means 24 and two non-bendable regions 33 connected to opposite sides of the bendable region 31. The hinge assembly 24 is for supporting a bendable region 31 of a flexible screen 30, the hinge assembly 24 including a hinge body 25, a linkage 26 at least one end of the hinge body 25, and a connection 27 connected between the linkage 26 and the hinge body 25. The hinge body 25 includes a connecting hinge 251 at opposite sides thereof and a rotating hinge 253 between the two connecting hinges. The linkage mechanism 26 includes two link members 261 respectively connected to the two connecting hinges 251, when one link member 261 rotates toward one side along with the corresponding connecting hinge 251, the linkage mechanism 26 drives the other link member 261 to rotate toward the same side, the rotation of the other link member 261 drives the other connecting hinge 251 to rotate toward the same side, and the connecting mechanism 27 drives the rotating hinge 253 to rotate toward the same side.

Specifically, when one of the connecting hinges 251 rotates towards the side away from the light-emitting surface of the flexible screen 30, the corresponding connecting rod 261 is driven to rotate towards the side away from the light-emitting surface of the flexible screen 30, the linkage mechanism 26 drives the other connecting rod 261 to rotate towards the side away from the light-emitting surface of the flexible screen 30, the other connecting rod 261 drives the other connecting hinge 251 to rotate towards the side away from the light-emitting surface of the flexible screen 30, and the connecting mechanism 27 can drive the rotating hinge 253 to rotate towards the side away from the light-emitting surface of the flexible screen 30, so that the hinge devices 24 are synchronously bent, and the bending of the bendable region 31 of the flexible screen 30 is realized. When one of the connecting hinges 251 rotates towards one side of the light-emitting surface of the flexible screen 30, the corresponding connecting rod 261 is driven to rotate towards one side of the light-emitting surface of the flexible screen 30, the linkage mechanism 26 drives the other connecting rod 261 to rotate towards one side of the light-emitting surface of the flexible screen 30, the other connecting rod 261 drives the other connecting hinge 251 to rotate towards one side of the light-emitting surface of the flexible screen 30, and the connecting mechanism 27 drives the rotating hinge 253 to rotate towards one side of the light-emitting surface of the flexible screen 30, so that the hinge device 24 is synchronously flattened, and the bendable region 31 of the flexible screen 30 is flattened.

In this embodiment, the hinge body 25 is provided with a linkage 26 and a connection 27 connected between each linkage 26 and the end of the hinge body 25 at opposite ends thereof. The number of the connecting hinge 251 and the rotational hinge 253 is two.

In this embodiment, the electronic device 100 is, for example, but not limited to, a mobile phone, a tablet computer, a display, a liquid crystal panel, an OLED panel, a television, a smart watch, a VR head-mounted display, a vehicle-mounted display, and any other products and components with display functions.

The hinge device 24 of the electronic device 100 of the present application includes a hinge main body 25, a linkage 26 connected to the hinge main body 25, and a connection 27 connected between the linkage and the hinge main body 25. The connecting hinge 251 of the hinge main body 25 is connected to the link member 261 of the link mechanism 26, and the rotating hinge 253 of the hinge main body 25 is connected to the link mechanism 26 through the connecting mechanism 27. When one of the link members 261 of the link mechanism 26 rotates toward one side along with the corresponding connecting hinge 251, the link mechanism 26 drives the other link member 261 to rotate toward the same side, the other link member 261 drives the other connecting hinge 251 to rotate toward the same side, and the link mechanism 27 drives the rotating hinge 253 to rotate toward the same side, so that the hinge device 24 can be conveniently bent and flattened, and the hinge device 24 can adapt to a supporting structure required by the bending of the flexible screen 30.

As shown in fig. 4 to 7, the hinge body 25 includes two connecting hinges 251 and two rotating hinges 253 between the two connecting hinges 251, and the two connecting hinges 251 and the two rotating hinges 253 are hinged by the connecting mechanism 27 and the positioning assembly 28. Specifically, two rotating hinges 253 are rotatably connected to each other, and two connecting hinges 251 are rotatably connected to the corresponding rotating hinges 253, respectively.

Two opposite ends of each connecting hinge 251 are respectively provided with a connecting block 2511 in a protruding way, and each connecting block 2511 is provided with a connecting hole 2512. A receiving groove 2514 is formed on one side of the connecting hinge 251 facing the rotating hinge 253, and the receiving groove 2514 extends along the length direction of the connecting hinge 251 and penetrates through two opposite end surfaces. Each relative both ends of rotation hinge joint 253 are seted up joint groove 2530 respectively, and rotation hinge joint 253 sets up the connecting hole 2531 that passes joint groove 2530, and joint hole 2532 is seted up respectively to the relative both ends face of rotation hinge joint 253, and spread groove 2533 has been seted up to one side of rotation hinge joint 253, and the other side that rotation hinge joint 253 deviates from spread groove 2533 is protruding to establish connecting strip 2535, and the length direction that rotation hinge joint 253 was all followed to spread groove 2533 and switching strip 2535 extends. The connecting bar 2535 of one of the rotating hinges 253 is rotatably received in the connecting groove 2533 of the other rotating hinge 253, and the connecting bar 2535 of the rotating hinge 253 is rotatably received in the receiving groove 2514 of the connecting hinge 251, so that the two connecting hinges 251 and the two rotating hinges 253 are hinged into a whole.

As shown in fig. 5, each linkage 26 further includes a fixed member 262 located between the two link members 261, and a transmission assembly connected between the link members 261 and the fixed member 262, the transmission assembly includes two transmission members 264 rotatably connected between the two link members 261 and the fixed member, specifically, one transmission member 264 is disposed between each link member 261 and the fixed member 262, each link member 261 and the fixed member 262 are connected by a first gear assembly 266, and the two transmission members 264 are connected by a second gear assembly 267.

The two link members 261 are respectively connected to two opposite sides of the fixed member 262 through a first gear assembly 266, each transmission member 264 is rotatably connected between the corresponding link member 261 and the fixed member 262, and the two transmission members 264 are connected through a second gear assembly 267. Therefore, when one of the link members 261 rotates towards one side relative to the fixed member 262, the link member 261 drives the corresponding transmission member 264 to rotate towards the same side, the transmission member 264 drives the other transmission member 264 to rotate towards the same side through the second gear assembly 267, and the other transmission member 264 drives the other link member 261 to rotate towards the same side.

Referring to fig. 8 to 13, each link 261 includes a first connecting shaft 2610 and a link 2611 disposed at one side of the first connecting shaft 2610, and the link 2611 is configured to be slidably connected to the corresponding connecting hinge 251; each of the first gear assemblies 266 includes a first gear 2661 disposed on the first connecting shaft 2610 and a second gear 2663 disposed on the fixing member 262 and engaged with the first gear 2661, and an axis of the first gear 2661 coincides with an axis of the first connecting shaft 2610. In this embodiment, the first gear 2661 and the second gear 2663 are both spur gears.

Specifically, the connecting rod 2611 of each connecting rod 261 is disposed at a middle portion of the first connecting shaft 2610 near one end portion thereof, the connecting rod 2611 includes a fixing portion 2613 fixedly secured to the connecting rod 2611 and a rod body 2614 connected to the fixing portion 2613, and the first gear 2661 is disposed on an outer peripheral surface of the fixing portion 2613. The first gear 2661 may be a whole gear or a partial gear, in this embodiment, the first gear 2661 is a partial gear, that is, the first gear 2661 includes a plurality of teeth annularly arrayed along an axial line of the first gear 2661, and the teeth surround the outer side surface of the fixing portion 2613 in a circular arc shape. Two opposite ends of the first connecting shaft 2610 are respectively provided with a clamping groove 2615 in the circumferential direction. The extending direction of the connecting rod 2611 is perpendicular to the axial line of the first connecting shaft 2610, and a guide post 2616 is arranged at one end of the connecting rod 2611 far away from the first connecting shaft 2610 along the axial direction of the first connecting shaft 2610.

The fixing member 262 includes a fixing block 2621 and two second connecting shafts 2620 arranged at intervals in parallel on the fixing block 2621, the second connecting shafts 2620 being parallel to the first connecting shaft 2610 at intervals; the transmission member 264 is rotatably connected between the first connecting shaft 2610 and the corresponding second connecting shaft 2620.

Specifically, the fixed block 2621 is a rectangular block approximately, and the outside at the relative both ends of fixed block 2621 sets up second gear 2663 respectively, and two second gears 2663 are symmetrical along the middle part of fixed block 2621. Each second gear 2663 may be configured as a whole gear or as a partial gear, in this embodiment, the second gear 2663 is configured as a partial gear, that is, the second gear 2663 includes a plurality of teeth annularly arrayed along an axial line of the second gear 2663. The two second connecting shafts 2620 are respectively fixed at two ends of the fixing block 2621, and a shaft axis of each second connecting shaft 2620 coincides with a shaft axis of the corresponding second gear 2663. The fixing block 2621 is located at a middle portion of the two second connecting shafts 2620 near one end thereof. The opposite ends of each second connecting shaft 2620 are provided with a clamping groove 2625 in a circumferential direction, and two opposite positioning surfaces 2624 are arranged on the outer circumferential surface of the end of each second connecting shaft 2620 away from the fixed block 2621, and each positioning surface 2624 extends along the length direction of the second connecting shaft 2620.

Each transmission member 264 includes a transmission plate 2641, the transmission plate 2641 is provided with two shaft holes 2642, wherein a first connection shaft 2610 and a second connection shaft 2620 adjacent to the first connection shaft are respectively inserted into the two shaft holes 2642.

Specifically, the driving plate 2641 is a substantially kidney-shaped plate, the two shaft holes 2642 are respectively opened at two opposite ends of the driving plate 2641, and the diameters of the two shaft holes 2642 are slightly larger than the diameters of the first connecting shaft 2610 and the second connecting shaft 2620, so that the first connecting shaft 2610 and the second connecting shaft 2620 can rotate in the corresponding shaft holes 2642. A driving post 2644 is disposed between the two shaft holes 2642 on one side of the driving plate 2641, and the driving post 2644 is used for pushing the corresponding connecting mechanism 27 to rotate.

The second gear assembly 267 includes a third gear 2670 disposed at an end of each transmission member 264 close to the corresponding second connecting shaft 2620, wherein the third gears 2670 of the two transmission members 264 are engaged with each other. In this embodiment, the third gear 2670 is a spur gear.

Specifically, a third gear 2670 is disposed on an outer periphery of one end of each driving plate 2641 of the driving assembly, which is close to the other driving plate 2641, and the third gears 2670 of the two driving plates 2641 are engaged with each other. Third gear 2670 may be a full circle of teeth disposed along the axis of corresponding axial bore 2642, or may be a plurality of teeth annularly arrayed along the axis of corresponding axial bore 2642.

In this embodiment, the linkage mechanism 26 includes two transmission components, which are respectively disposed at two opposite ends of the fixing member 262.

The linkage mechanism 26 further includes a damping member 268 disposed between each first connecting shaft 2610 and the corresponding second connecting shaft 2620, and the damping member 268 is used for providing resistance to the rotation of the hinge device 20.

Specifically, the damping member 268 includes a plurality of stacked damping plates 2681, each damping plate 2681 is provided with two damping holes 2683 having an elastically stretchable aperture, and the first connecting shaft 2610 and the second connecting shaft 2620 are respectively inserted into the two damping holes 2683 in an interference fit manner.

Each of the damping pieces 2681 includes two hole circlips 2684 and a connecting portion 2685 connected between the two hole circlips 2684, that is, the two hole circlips 2684 are respectively located at opposite sides of the connecting portion 2685. Each of the hole circlips 2684 includes a first elastic shoulder 2686 protruding from one end of the connecting portion 2685, and a second elastic shoulder 2687 protruding from the other end of the connecting portion 2685. The damping hole 2683 is defined between the first elastic shoulder 2686 and the second elastic shoulder 2687. The damping hole 2683 has a diameter slightly smaller than the diameters of the first and second connection shafts 2610 and 2620.

The linkage mechanism 26 further includes at least one positioning piece 2626, a plurality of connecting pads 2627 and a plurality of clasps 2628, waist-shaped through holes 2626a are respectively formed at two opposite ends of the positioning piece 2626, the through holes 2626a include two opposite clamping fixing surfaces 2626b, two second connecting shafts 2620 can be respectively inserted into the two through holes 2626a of the positioning piece 2626, and two positioning surfaces 2624 of each second connecting shaft 2620 respectively correspond to the two clamping fixing surfaces 2626 b. Each connecting pad 2627 is a substantially kidney-shaped plate, and two opposite ends of the connecting pad 2627 are respectively provided with a through hole. Each snap ring 2628 is a C-shaped snap ring defined by a resilient strip.

When the linkage mechanism 26 is assembled, the two link members 261 are respectively placed on two opposite sides of the fixing member 262, so that the first gear 2661 of each link member 261 is engaged with the corresponding second gear 2663; specifically, the third gears 2670 of the two transmission members 264 of one of the transmission assemblies are engaged with each other, one end of the first connecting shaft 2610 of each of the connection members 261 is rotatably inserted into the shaft hole 2642 of the corresponding transmission member 264 far from the third gear 2670, and the ends of the two second connecting shafts 2620 of the fixing member 262 close to the fixing block 2621 are rotatably inserted into the shaft holes 2642 of the two transmission members 264 close to the third gears 2670, respectively; then, the snap rings 2628 are respectively clamped into the clamping grooves 2625 at the ends of the first connecting shaft 2610 and the second connecting shaft 2620 close to the fixed block 2621 to position the two transmission pieces 264, so that the two connecting rod pieces 261 and the fixed piece 262 can be connected in a linkage manner; connecting the connecting pads 2627 between each first connecting shaft 2610 and the adjacent second connecting shaft 2620 and between the two second connecting shafts 2620, specifically, inserting the connecting shafts 2610 and the ends of the adjacent second connecting shafts 2620 far away from the fixed block 2621 into the through holes of the two stacked connecting pads 2627 in a rotatable manner, and inserting the ends of the two second connecting shafts 2620 far away from the fixed block 2621 into the through holes of the two stacked connecting pads 2627; connecting two damping members 268 between each first connecting shaft 2610 and the adjacent second connecting shaft 2620, specifically, inserting the ends of each connecting shaft 2610 and the adjacent second connecting shaft 2620 away from the fixed block 2621 into the damping holes 2683 of the stacked damping plates 2681 in a rotatable manner; the positioning plates 2626 are connected to the two second connecting shafts 2620, specifically, the ends of the two second connecting shafts 2620, which are far away from the fixing block 2621, are respectively inserted into the through holes 2626a of the positioning plates 2626, so that the two positioning surfaces 2624 of each second connecting shaft 2620 are respectively clamped to the clamping surfaces 2626b of the corresponding through hole 2626 a. Connecting the two transmission members 264 of the other transmission assembly between the two link members 261 and the fixing member 262, specifically, engaging the third gears 2670 of the two transmission members 264 of the other transmission assembly with each other, inserting the end of the first connecting shaft 2610 of each link member 261 away from the fixing member 262 into the shaft hole 2642 of the corresponding transmission member 264 away from the third gear 2670 in a rotatable manner, and inserting the end portions of the two second connecting shafts 2620 of the fixing member 262 away from the fixing member 262 into the shaft holes 2642 of the two transmission members 264 close to the third gears 2670 in a rotatable manner; then, a plurality of snap rings 2628 are snapped into snap grooves 2625 at the ends of the first connecting shaft 2610 and the second connecting shaft 2620 away from the fixing member 262, respectively, to position the two driving members 264.

When the linkage mechanism 26 bends, the one link member 261 is rotated toward the other link member 261, and the first gear 2661 of the one link member 261 rotates along the corresponding second gear 2663; because the fixing block 2621 of the fixing member 262 and the second connecting shaft 2620 are relatively fixed, and the second gear 2663 is fixed on the fixing block 2621, the second gear 2663 is fixed and cannot rotate, and the first gear 2661 can only rotate around the corresponding second gear 2663, so that the one link member 261 rotates along the corresponding second gear 2663, and thus the two transmission members 264 connected to the one link member 261 are driven to rotate along the corresponding second connecting shaft 2620 and the corresponding damping member 268 is driven to rotate along the corresponding second connecting shaft 2620; the two transmission members 264 drive the other two transmission members 264 to rotate along the corresponding second connecting shafts 2620 through the second gear assembly 267, and the other two transmission members 264 drive the other connecting rod 261 to rotate around the corresponding second gear 2663, so that the two connecting rod 261 approach each other and are bent at the same time. In the linkage process, each of the first connecting shaft 2610 and the second connecting shaft 2620 is in interference fit with the corresponding damping hole 2683 of the damping plate 2681, so that the damping member 268 can rotate and position the two link members 261 at any angle.

In other usage manners, the two link members 261 can be rotated together in opposite directions, the first gears 2661 of the two link members 261 rotate around the corresponding second gears 2663 to drive the transmission members 264 to rotate in opposite directions along the corresponding second connecting shafts 2620, and also drive the two damping members 268 to rotate in opposite directions along the corresponding second connecting shafts 2620, so that the two link members 261 are simultaneously moved close to each other and bent.

When the linkage 26 is flattened from the bent state, the one link 261 is rotated away from the other link 261, and the first gear 2661 of the one link 261 rotates along the corresponding second gear 2663; because the fixing block 2621 of the fixing member 262 and the second connecting shaft 2620 are relatively fixed, and the second gear 2663 is fixed on the fixing block 2621, the second gear 2663 is fixed and cannot rotate, and the first gear 2661 can only rotate around the corresponding second gear 2663, so that the one of the connecting rod pieces 261 rotates away from the other connecting rod 261 along the corresponding second gear 2663, so as to drive the two transmission members 264 connected to the one of the connecting rod pieces 261 to rotate away from each other along the corresponding second connecting shaft 2620 and drive the corresponding damping member 268 to rotate away from each other along the corresponding second connecting shaft 2620; the two transmission members 264 drive the other two transmission members 264 to rotate along the corresponding second connecting shafts 2620 through the second gear assemblies 267, and the other two transmission members 264 drive the other connecting rod 261 to rotate around the corresponding second gears 2663 toward the direction away from the one of the connecting rods 261, so that the two connecting rod 261 are simultaneously away from each other to be flattened. In the linkage process, each of the first connecting shaft 2610 and the second connecting shaft 2620 is in interference fit with the corresponding damping hole 2683 of the damping plate 2681, so that the damping member 268 can rotate and position the two link members 261 at any angle.

In other usage manners, the two link members 261 can be rotated together in opposite directions to change from the bent state to the flattened state, specifically, the first gears 2661 of the two link members 261 rotate around the corresponding second gears 2663 to drive the transmission members 264 to rotate in opposite directions along the corresponding second connection shafts 2620, and drive the two damping members 268 to rotate in opposite directions along the corresponding second connection shafts 2620, so that the two link members 261 are simultaneously separated from each other and flattened.

In other embodiments, the second connection shaft 2620 and the fixed block 2621 may not be fixedly connected, and the two second connection shafts 2620 are relatively fixed by the positioning plate 2626, so that the fixed block 2621 and the two second connection shafts 2620 are also relatively fixed.

Referring to fig. 4-7 and fig. 14 and 15, each connecting rod 2611 is connected to the corresponding connecting hinge 251 through the positioning assembly 28, the connecting rod 2611 is movably connected to the positioning assembly 28, and the connecting hinge 251 can be driven by the positioning assembly 28 to rotate the connecting rod 2611 relative to the fixing member 262 along the first gear assembly 266.

Specifically, the two opposite ends of one of the connecting hinges 251 are respectively provided with a first positioning component 28a, and the two opposite ends of the other connecting hinge 251 are respectively provided with a second positioning component 28 b. Each first positioning member 28a includes a first mounting part 281 and a first snap member 283 connected between the first mounting part 281 and the corresponding connecting hinge 251. The first mounting element 281 comprises a generally rectangular mounting bar 2811, a slide rail 2813 protruding from the mounting bar 2811 and facing away from the linkage 26, and an arc-shaped guide block 2814 protruding from the mounting bar 2811 and facing toward the linkage 26. One end of the mounting bar 2811 facing the first clamping piece 283 is provided with a clamping groove 2815, the mounting bar 2811 is provided with a through hole penetrating through the clamping groove 2815, and the clamping groove 2815 is used for connecting the first clamping piece 283. A sliding groove 2816 is formed in the middle of the mounting bar 2811 along the extending direction of the sliding rail 2813, and two opposite ends of the sliding groove 2816 respectively penetrate through two opposite side surfaces of the mounting bar 2811. The slide slots 2816 are for slidably inserting the corresponding links 2611.

As shown in fig. 16, the mounting bar 2811 has an arc-shaped receiving groove 2817 formed on an inner surface of the sliding slot 2816, and the receiving groove 2817 is used for receiving the guide post 2616 of the corresponding connecting rod 2611. An arc-shaped guide sliding bar 2818 is convexly arranged on one side of the arc-shaped guide block 2814, which is far away from the sliding groove 2816, and the axial line of the arc surface of the arc-shaped guide block 2814 is overlapped with the axial line of the guide sliding bar 2818. An arc-shaped receiving groove 2819 is formed in one end, away from the sliding groove 2816, of the side surface of the mounting bar 2811 where the arc-shaped guide block 2814 is provided.

First joint spare 283 includes the joint strip 2831 of rectangle, protruding first joint piece 2832 of locating joint strip 2831 one end to and protruding second joint piece 2835 of locating the relative other end of joint strip 2831. The first clamping block 2832 is provided with a through hole, and the second clamping block 2835 is provided with a through hole. One side of the first clamping member 283 is convexly provided with a circular arc-shaped connecting block 2836 and a circular arc-shaped cover plate 2837 adjacent to the connecting block 2836, and a gap is arranged between the connecting block 2836 and the cover plate 2837. One side of the connecting block 2836 facing the cover plate 2837 is provided with a circular arc-shaped guide groove 2838, and the axial lead of the circular arc surface of the connecting block 2836 coincides with the axial lead of the guide groove 2835.

Each second positioning member 28b includes a second mounting member 285 and a second snap 286 connected between the second mounting member 285 and the corresponding connecting hinge 251. The first mounting member 285 includes a generally rectangular mounting bar 2851, a connecting tab 2853 protruding from the linkage 26 from the mounting bar 2851, and an arcuate guide 2854 protruding from the mounting bar 2851 toward the linkage 26. Clamping groove 2855 has been seted up towards the one end of second joint spare 286 to mounting bar 2851, and mounting bar 2851 sets up the break-through the through-hole of clamping groove 2855, clamping groove 2855 is used for connecting second joint spare 286. The middle part of the mounting bar 2851 is provided with a sliding groove 2856 along the direction vertical to the length direction, two opposite ends of the sliding groove 2856 respectively penetrate through two opposite side surfaces of the mounting bar 2851, and the sliding groove 2856 is used for being inserted into the corresponding connecting rod 2611 in a sliding manner.

As shown in fig. 17, the mounting bar 2851 has an arc-shaped receiving groove 2857 formed on an inner surface of the slide slot 2856, and the receiving groove 2857 is used for receiving the guide post 2616 on the corresponding connecting rod 2611. One side of the arc guide block 2854 facing the chute 2856 is provided with an arc guide chute 2858, and the axial lead of the arc surface of the arc guide block 2854 coincides with the axial lead of the guide chute 2858. The side of the mounting bar 2851 provided with the arc-shaped guide block 2854 is provided with an arc-shaped accommodating groove 2859 adjacent to the arc-shaped guide block 2854.

The structure of second joint piece 286 is similar with the structure of first joint piece 283, and second joint piece 286 includes the joint strip 2861 of rectangle, protruding first joint piece 2862 of locating joint strip 2861 one end to and protruding second joint piece 2865 of locating the relative other end of joint strip 2831. The first clamping block 2862 is provided with a through hole, and the second clamping block 2865 is also provided with a through hole. One side of the second clamping member 286 facing the linkage mechanism 26 is convexly provided with a circular arc-shaped connecting block 2866, one side of the connecting block 2866 is convexly provided with a circular arc-shaped sliding guide bar 2868, and the axial lead of the circular arc surface of the connecting block 2866 is coincided with the axial lead of the sliding guide bar 2828. The side of the second clip 286 adjacent to the connecting block 2866 has a receiving groove 2869.

As shown in fig. 6 and 7, and fig. 14 and 15, a connection mechanism 27 is disposed between each linkage 26 and the connection hinge 251, the connection mechanism 27 includes a first transmission assembly 271 and a second transmission assembly 274 respectively connected between the two transmission members 264 and the two rotation hinges 253, and the rotation of the two transmission members 264 can respectively drive the first transmission assembly 271 and the second transmission assembly 274 to rotate, so that the first transmission assembly 271 and the second transmission assembly 274 drive the two rotation hinges 253 to rotate.

Specifically, the first transmission assembly 271 includes a first transmission member 272 and a first connecting member 273 connected to the first transmission member 272. The first transmission member 272 includes a transmission block 2721 having a sector cross section, that is, the front surface of the transmission block 2721 is a circular arc surface, and the back surface of the transmission block 2721 is a flat surface. The two opposite ends of the transmission block 2721 are provided with a first clamping piece 2723 and a second clamping piece 2724 in a protruding manner near the arc surface. The end face of the transmission block 2721 provided with the first clamping piece 2723 is provided with a fixture block 2725 in a protruding manner near the back, and the end face of the transmission block 2721 departing from the first connecting piece 273 is provided with a circular arc-shaped stirring groove 2726 between the first clamping piece 2723 and the fixture block 2725. The transmission block 2721 faces the end face of the first connecting piece 273 and is provided with a bayonet 2727 close to the back, and a clamping hole 2728 is formed in the end face between the second clamping piece 2724 and the bayonet 2727.

The first connector 273 includes a first connection block 2731, and a front surface of the first connection block 2731 is a circular arc surface. A clamping block 2732 and a clamping column 2733 corresponding to the bayonet 2727 and the clamping hole 2728 are convexly arranged on the end surface of the first connecting block 2731 facing the first transmission piece 272; the end surface of the first connecting block 2731, which faces away from the first transmission member 272, is convexly provided with a connecting piece 2734 and a clamping column, and the connecting piece 2734 is provided with a connecting hole 2735. A connecting block 2736 is convexly arranged on one side of the first connecting block 2731, the connecting block 2736 is provided with a circular arc-shaped guide surface, an accommodating groove 2737 is formed in the position, adjacent to the connecting block 2736, of the first connecting block 2731, and the circular arc-shaped guide surface is arranged in the accommodating groove 2737; the side surface of the connecting block 2736 facing the accommodating groove 2737 is convexly provided with a circular arc-shaped sliding guide bar 2736a, and the axis of the sliding guide bar 2736a coincides with the axis of the circular arc-shaped guide surface of the connecting block 2736. A connecting block 2738 is also convexly arranged on the other side, away from the connecting block 2736, of the first connecting block 2731, a circular arc-shaped guide surface is arranged on the connecting block 2738, an accommodating groove 2739 is formed in the position, close to the connecting block 2738, of the first connecting block 2731, a circular arc-shaped guide surface is arranged in the accommodating groove 2739, a circular arc-shaped guide groove 2738a is formed in the side surface, facing the accommodating groove 2739, of the connecting block 2738, and the axis of the guide groove 2738a coincides with the axis of the circular arc-shaped guide surface of the connecting block 2738.

The second transmission assembly 274 includes a second transmission member 275 and a second connecting member 276 coupled to the second transmission member 275. The structure of the second transmission member 275 is similar to that of the first transmission member 272, and the second transmission member 275 includes a transmission block 2751 with a sector-shaped cross section, that is, the front surface of the transmission block 2751 is a circular arc surface, and the back surface of the transmission block 2751 is a flat surface. The opposite ends of the driving block 2751 near the front are provided with a first clamping tab 2753 and a second clamping tab 2754. The end face of the transmission block 2751 provided with the first clamping piece 2753 is provided with a clamping block 2755 in a protruding manner near the back face, and the end face of the transmission block 2751 departing from the second connecting piece 276 is provided with a circular arc-shaped toggle groove 2756 between the first clamping piece 2753 and the clamping block 2755. The end surface of the transmission block 2751 facing the second connector 276 and close to the back surface is provided with a bayonet 2757, and the end surface is provided with a clamping hole 2758 between the second clamping piece 2754 and the bayonet 2757.

The structure of the second connecting member 276 is similar to that of the first connecting member 273, the second connecting member 276 includes a second connecting block 2761, and the front surface of the second connecting block 2761 is a circular arc surface. A clamping block 2762 and a clamping column 2763 corresponding to the bayonet 2757 and the clamping hole 2758 are convexly arranged on the end surface, facing the second transmission piece 275, of the second connecting block 2761; the end surface of the second connecting block 2761, which is away from the second transmission member 275, is convexly provided with a connecting sheet 2764 and a clamping column, and the connecting sheet 2764 is provided with a connecting hole 2765. A connecting block 2766 is convexly arranged on one side of the second connecting block 2761, an arc-shaped guide surface is arranged on the connecting block 2766, an accommodating groove 2767 is formed in the position, adjacent to the connecting block 2766, of the second connecting block 2761, and an arc-shaped guide surface is arranged in the accommodating groove 2767; the side surface of the connecting block 2766 facing the accommodating groove 2767 is convexly provided with a circular arc-shaped sliding guide bar 2766a, and the axis of the sliding guide bar 2766a is overlapped with the axis of the guide surface of the connecting block 2766. A connecting block 2768 is also convexly arranged on the other side, away from the connecting block 2766, of the second connecting block 2761, the connecting block 2768 is provided with a circular arc-shaped guide surface, a containing groove 2769 is formed in the position, close to the connecting block 2768, of the second connecting block 2761, a circular arc-shaped guide surface is arranged in the containing groove 2769, a circular arc-shaped guide groove 2768a is formed in the side surface, facing the containing groove 2769, of the connecting block 2768, and the axis of the guide groove 2768a coincides with the axis of the connecting block 2768.

Each linkage mechanism 26 is further provided with two third transmission assemblies 277 at an end away from the hinge main body 25, the two third transmission assemblies 277 are respectively connected to the other two transmission members 264 far away from the hinge main body 25, and the rotation of the other two transmission members 264 can respectively drive the two third transmission assemblies 277 to rotate.

The third transmission assembly 277 includes a third transmission 278 and a third connecting member 279 connected to the third transmission 278. The third transmission member 278 includes a transmission block 2781 with a sector-shaped cross section, that is, the front surface of the transmission block 2781 is a circular arc surface, and the back surface of the transmission block 2781 is a flat surface. The two opposite ends of the transmission block 2781 are provided with a first clamping piece 2783 and a second clamping piece 2784 in a protruding manner near the arc surface. The end face of the transmission block 2781 provided with the first clamping piece 2783 is provided with a clamping block 2785 in a protruding manner near the back face, and a circular arc-shaped toggle groove 2786 is formed between the first clamping piece 2783 and the clamping block 2785 on the end face of the transmission block 2781 departing from the third connecting piece 279. The end surface of the transmission block 2781 facing the third connecting piece 279 close to the back surface is provided with a bayonet 2787, and the end surface is provided with a clamping hole 2788 between the second clamping piece 2784 and the bayonet 2787.

The third connecting member 279 includes a third connecting block 2791, and the front surface of the third connecting block 2791 is a circular arc surface. The end surface of the third connecting block 2791 facing the third transmission member 278 is provided with a clamping block 2792 and a clamping column 2793 corresponding to the bayonet 2787 and the clamping hole 2788. A connecting block 2796 is convexly arranged on one side of the third connecting block 2791, an arc-shaped guide surface is arranged on the connecting block 2796, an accommodating groove 2797 is formed in the position, adjacent to the connecting block 2796, of the third connecting block 2791, and an arc-shaped guide surface is arranged in the accommodating groove 2797; the side surface of the connecting block 2796 facing the accommodating groove 2797 is provided with a circular arc-shaped guide groove 2796a, and the axis of the guide groove 2796a coincides with the axis of the circular arc-shaped guide surface of the connecting block 2796. A connecting block 2798 is also convexly arranged on the other side of the third connecting block 2791, which is away from the connecting block 2796, a circular arc-shaped guide surface is arranged on the connecting block 2798, an accommodating groove 2799 is formed in the position, which is close to the connecting block 2798, of the first connecting block 2781, a circular arc-shaped guide surface is arranged in the accommodating groove 2799, a circular arc-shaped sliding guide bar 2798a is convexly arranged on the side surface, facing the accommodating groove 2799, of the connecting block 2798, and the axis of the sliding guide bar 2798a coincides with the axis of the circular arc-shaped guide surface of the connecting block 2798.

The connecting mechanism 27 further includes two connecting covers 270, each connecting cover 270 includes an arc-shaped cover plate 2701 and positioning plates 2702 disposed at two opposite ends of the cover plate 2701. The intersection of each positioning plate 2702 and the cover plate 2701 is provided with a clamping hole 2704. Each positioning plate 2702 is provided with a guide groove 2705 corresponding to the transmission post 2644 of the transmission member 264 and a through groove 2706 communicating the guide groove 2705 with the end of the positioning plate 2702 away from the cover plate 2701.

Referring to fig. 4 to fig. 22, when assembling the hinge device 24, two first positioning elements 28a are assembled, specifically, the first clamping block 2832 of each first clamping member 283 is clamped into the corresponding clamping groove 2815 of the first mounting member 281, and the locking members respectively pass through the through hole of the mounting bar 2811 and the through hole of the first clamping block 2832, so as to lock the first clamping member 283 and the first mounting member 281 into a whole. In other embodiments, each first snap-fit member 283 and the corresponding first mounting member 281 can be integrally formed or connected by gluing, welding or other fixing methods. Assembling two second positioning assemblies 28b, specifically, clamping the first clamping block 2862 of each second clamping piece 286 into the corresponding clamping groove 2855 of the second mounting piece 285, and respectively passing through the through hole of the mounting bar 2851 and the through hole of the first clamping block 2862 by a locking piece, so as to lock the second clamping piece 286 and the second mounting piece 285 into a whole; in other embodiments, each second mounting element 285 and the corresponding second mounting element 285 may be integrally formed or connected by gluing, welding, or other fastening means. Assembling each first transmission assembly 271, specifically, clamping the clamping block 2732 and the clamping column 2733 of the first connecting piece 273 in the clamping opening 2727 and the clamping hole 2728 of the first transmission piece 272, and clamping the second clamping piece 2724 on the first connecting block 2731, so that the first transmission piece 272 and the first connecting piece 273 are fixedly connected into a whole; in other embodiments, the first transmission member 272 and the first connecting member 273 may be fixed together by gluing, screwing, or welding, or may be integrally formed together. Assembling each second transmission assembly 274, namely, respectively clamping the clamping block 2762 and the clamping column 2763 of the second transmission member 276 in the clamping port 2757 and the clamping hole 2758 of the second transmission member 275, and clamping the second clamping sheet 2754 on the second connection block 2761, so that the second transmission member 275 and the second transmission member 276 are fixedly connected into a whole; in other embodiments, the second transmission member 275 and the second connection member 276 can be fixed together by gluing, screwing, welding, or the like, or can be integrally formed together. Assembling each third transmission component 277, specifically, clamping the clamping block 2792 and the clamping column 2793 of the third connecting piece 279 in the clamping opening 2787 and the clamping hole 2788 of the third transmission piece 278 respectively, and clamping the second clamping piece 2784 on the third connecting block 2791, so that the third connecting piece 279 and the third transmission piece 278 are fixedly connected into a whole; in other embodiments, the third transmission member 278 and the third connecting member 279 may be fixed together by gluing, screwing, welding, or the like, or may be integrally formed together.

The link mechanism 26, the connecting mechanism 27 and the positioning member 28 are integrally assembled, and specifically, the two connecting rods 2611 of the integrally assembled link mechanism 26 are respectively inserted into the corresponding slide grooves 2816 of the first positioning member 28a and 2856 of the second positioning member 28b, so that the two guide posts 2616 are respectively and slidably accommodated in the accommodating grooves 2817 and 2857 of the first and second mounting members 281 and 285. The two connecting covers 270 are respectively covered on the linkage 26, and specifically, the transmission posts 2644 of the two transmission members 264 on the same side respectively penetrate through the through grooves 2706 of the two positioning plates 2702 of the corresponding connecting covers 270 to be inserted into the corresponding guide grooves 2705. A first clamping piece 2723 and a clamping block 2725 of the first transmission piece 272 of the first transmission assembly 271 are clamped in the corresponding clamping hole 2704 and the corresponding through groove 2706 of the connecting cover 270 respectively, so that the transmission column 2644 is inserted into the shifting groove 2726; the connecting block 2836 is inserted into the receiving groove 2737 of the first connecting block 2731, the connecting block 2736 is inserted under the cover plate 2837, and the slide bar 2736a is inserted into the guide groove 2838. In other embodiments, the first transmission assembly 271 and the corresponding connecting cover 270 may be fixed by screwing, gluing, or the like. The first clamping piece 2753 and the clamping block 2755 of the second transmission piece 275 of the second transmission assembly 274 are clamped in the corresponding clamping hole 2704 and the corresponding through groove 2706 of the connection cover 270, so that the transmission post 2644 is inserted into the toggle groove 2756; the connecting block 2768 is inserted into the receiving groove 2869, the connecting block 2866 is slidably inserted into the receiving groove 2769, the slide bar 2868 is slidably inserted into the guide groove 2768a, the connecting block 2738 is slidably inserted into the receiving groove 2767, the connecting block 2766 is slidably inserted into the receiving groove 2739, and the slide bar 2766a is slidably inserted into the guide groove 2738 a. In other embodiments, the second transmission assembly 274 and the corresponding connection cover 270 may be fastened by screwing, gluing, or the like. The first clamping piece 2783 and the clamping block 2785 of the third transmission piece 278 of the third transmission component 277 are clamped in the clamping hole 2704 and the through groove 2706 of the connection cover 270 at the end away from the first transmission component 271, so that the transmission column 2644 is inserted into the toggle groove 2786; slidably inserting the connecting block 2798 of one of the third connecting members 279 into the receiving groove 2797 of the other third connecting member 279, slidably inserting the connecting block 2796 of the other third connecting member 279 into the receiving groove 2799 of the one of the third connecting members 279, and slidably inserting the guide bar 2798a of the one of the third connecting members 279 into the guide groove 2796a of the other third connecting member 279; the arc-shaped guide block 2814 is slidably inserted into the corresponding receiving groove 2797 of the third connecting piece 279, the connecting block 2796 is slidably inserted into the receiving groove 2819, and the slide guide bar 2818 is slidably inserted into the slide guide groove 2796 a; the arc-shaped guide 2854 is slidably inserted into the receiving groove 2799 of the corresponding third connecting member 279, the connecting block 2798 is slidably inserted into the receiving groove 2859, and the slide bar 2798a is slidably inserted into the slide groove of the arc-shaped guide 2854. In other embodiments, the third transmission assembly 277 and the corresponding connection cover 270 may be fixed by screwing, gluing, or the like.

The second clamping blocks 2835 of the first positioning component 28a and the second clamping blocks 2865 of the second positioning component 28b are respectively lapped on the connecting blocks 2511 of the two connecting hinges 251 at the same end of the hinge main body 25, so that the through holes of the second clamping blocks 2835 and 2865 are opposite to the connecting holes 2512 of the corresponding connecting blocks 2511; the connecting sheet 2734 and the clamping column of the first transmission component 271 are respectively clamped in the clamping groove 2530 and the clamping hole 2532 of the corresponding rotary hinge 253, so that the connecting hole 2735 of the connecting sheet 2734 is opposite to the connecting hole 2531 of the rotary hinge 253; the connecting sheet 2764 and the clamping column of the second transmission assembly 274 are clamped in the clamping groove 2530 and the clamping hole 2532 of the corresponding rotary hinge 253 respectively, so that the connecting hole 2765 of the connecting sheet 2764 is opposite to the connecting hole 2531 of the rotary hinge 253; the plurality of locking members pass through the through holes of the second clamping blocks 2835 and 2865, the connecting hole 2735 of the connecting piece 2734 and the connecting hole 2765 of the connecting piece 2764 and are locked in the corresponding connecting hole 2512 of the connecting hinge 251 and the connecting holes 2531 of the two rotating hinges 253, so that the hinge device 24 is assembled.

At this time, as shown in fig. 22, the two connecting hinges 251 are respectively hinged to the two corresponding rotating hinges 253, and the two rotating hinges 253 are hinged to each other, specifically, each connecting hinge 251 and the corresponding rotating hinge 253 rotate through a first virtual axis a1, the two rotating hinges 253 rotate through a second virtual axis a2, the second virtual axis a2 is located between the two first virtual axes a1, and the two first virtual axes a1 are respectively at the same distance from the second virtual axis a 2. The two connecting hinges 251 rotate around the corresponding first virtual axes a1, and the first positioning component 28a and the second positioning component 28b also rotate around the first virtual axis a1 along with the corresponding connecting hinges 251; the two rotating hinges 253 rotate around the second virtual axis a2, the first transmission assembly 271, the corresponding connecting cover 270 and the third transmission assembly 277 rotate around the second virtual axis a2 along with the corresponding rotating hinge 253, and the second transmission assembly 274, the corresponding connecting cover 270 and the third transmission assembly 277 rotate around the second virtual axis a2 along with the corresponding rotating hinge 253. Specifically, since the first transmission assembly 271, the corresponding connecting cover 270, the third transmission assembly 277 connected to the connecting cover 270, and the corresponding rotating hinge 253 are connected to a unitary structure, the unitary structure rotates about the second virtual axis a 2; since the second driving unit 274, the corresponding connection cover 270, the third driving unit 277 connected to the connection cover 270, and the corresponding rotation hinge 253 are connected to a unitary structure, the unitary structure is also rotated about the second virtual axis a 2. Each first virtual axis A1 is spaced parallel to the second virtual axis A2, and the first virtual axis A1 has the same axis radius as the second virtual axis A2. In the flattened state, the distance between two opposite side surfaces of the two connecting hinges 251 is L, that is, the straight line distance between two side surfaces of the two connecting hinges 251 at the bending outer sides in the flattened state is L. In this embodiment, the distance between two opposite sides of the two connecting hinges 251 is equal to the width of the bendable region 31, i.e. the length of the bendable region 31 extending in a direction perpendicular to the first virtual axis a1 is equal to L. The first virtual axis a1 and the second virtual axis a2 are located outside the hinge main body 25, and preferably, the first virtual axis a1 and the second virtual axis a2 are located on the flexible screen 30 covering the hinge main body 25, so that the bending resistance of the flexible screen 30 can be improved, and the flexible screen 30 can be prevented from being damaged to the maximum extent. Further, a1 and a2 may also be located on the neutral layer of the flexible screen.

The neutral layer is that the outer layer of the flexible screen 30 is stretched, the inner layer of the flexible screen 30 is extruded, a transition layer which is not stretched, not extruded or stretched or extruded has relatively small acting force is arranged on the section of the transition layer, the stress of the transition layer is little, and the transition layer is the neutral layer.

Each virtual axis is defined by a corresponding structure. Specifically, the virtual axis a1 may be defined by the axis of the arc of the bottom of the receiving slot 2737 or by the axis of the arc of the bottom of the link 2836; the virtual axis a2 may be defined by the axis of the arc-shaped guide surface at the bottom of the connecting block 2738 or the axis of the arc-shaped guide surface at the inner wall of the receiving groove 2767.

The flexible screen 30 is attached to the top of the curved face of each articulation/swivel/locating assembly/linkage in the deployed condition and is spaced from the other regions of the curved face beyond the top of each curved face. By the above-mentioned virtual axis scheme, the flexible screen 30 can keep the length substantially unchanged when being bent.

Because the inner surface of the sliding slot 2816 of the first mounting element 281 is provided with the circular arc-shaped receiving slot 2817 and the inner surface of the sliding slot 2856 of the second mounting element 285 is provided with the circular arc-shaped receiving slot 2857, in the process of bending or flattening the hinge device 24, the guide posts 2616 of the two connecting rods 2611 can respectively slide in the receiving slots 2817 and 2857, so that the opening thicknesses of the sliding slots 2816 and 2856 can be reduced, and further the thicknesses of the first mounting element 281 and the second mounting element 285 can be reduced, so that the thickness of the whole electronic device 100 can be reduced.

Because the straight rack and the straight gear are meshed for linkage, compared with the mode of meshing and linking by the bevel gear, the method does not need high manufacturing precision, can effectively reduce the production cost and improve the production efficiency.

It is understood that the spur rack in each of the first gear assembly 266 and the second gear assembly 267 can be replaced by a helical gear or a spur gear, the spur gear can be replaced by a helical gear, or the spur rack in each gear assembly can be omitted, and the spur rack can be directly engaged by two spur gears, which can also achieve the purpose of linkage.

The hinge device 24 is placed between the first frame 21 and the second frame 23, that is, the slide rail 2813 of the first positioning unit 28a and the connecting piece 2853 of the second positioning unit 28b of the two connecting links 251 are connected to the first frame 21 and the second frame 23, respectively. The back surfaces of the two non-bent regions 33 of the flexible panel 30 are respectively attached to the first frame 21 and the second frame 23, and the back surface of the bendable region 31 of the flexible panel 30 is attached to the front surface of the hinge device 24. At this time, the first snap member 283 and the second snap member 286 of the hinge device 24 are fixed relative to the back surface of the flexible screen 30, and the bendable region 31 of the flexible screen 30 can be bent along with the bending of the hinge device 24.

Referring to fig. 23 to 27, when the electronic device 100 is bent, a bending force is applied to at least one of the first frame 21 and the second frame 23 of the electronic device 100, so that the connecting links 251 connected to the first frame 21 and the second frame 23 rotate in a direction adjacent to each other, and the first positioning assemblies 28a and the corresponding second positioning assemblies 28b rotate in a direction adjacent to each other. Specifically, if a bending force is applied to the first frame body 21, the first frame body 21 drives the corresponding connecting hinge 251 and the first positioning assemblies 28a at the two ends of the connecting hinge 251 to rotate relative to the rotating hinge 253 along the first virtual axis a1 toward the side away from the flexible screen 30; the two first positioning assemblies 28a drive the first gears 2661 of the two link members 261 to rotate along the corresponding second gears 2663, respectively, because the fixing block 2621 of the fixing member 262 and the second connecting shaft 2620 are relatively fixed, and the second gears 2663 are fixed on the fixing block 2621, the second gears 2663 and the second connecting shaft 2620 are both fixed and do not rotate, the first gears 2661 can only rotate around the corresponding second gears 2663 towards the side far away from the flexible screen 30, so that the link members 261 rotate along the second gears 2663 towards the side far away from the flexible screen 30, and the connecting rods 2611 and the guide posts 2616 of the link members 261 slide in the corresponding sliding slots 2816 and receiving slots 2817 of the first mounting member 281; meanwhile, the link 261 drives the two corresponding transmission members 264 and the corresponding damping members 268 to rotate along the corresponding second connecting shaft 2620 toward the side away from the flexible screen 30, the transmission posts 2644 of the two transmission members 264 slide in the corresponding toggle grooves 2726 and 2786 respectively, so as to drive the first transmission assembly 271 and the corresponding third transmission assembly 277 to rotate along the second virtual shaft a2 toward the side away from the flexible screen 30, and the first transmission assembly 271 drives the corresponding rotating hinge 253 to rotate along the second virtual shaft a2 toward the side away from the flexible screen 30; the two transmission members 264 drive the other two transmission members 264 to rotate along the corresponding second connecting shafts 2620 towards the side away from the flexible screen 30 through the second gear assemblies 267, the other two transmission members 264 drive the other connecting rod 261 and the other damping member 268 to rotate towards the side away from the flexible screen 30, and as the fixing block 2621 of the fixing member 262 and the second connecting shaft 2620 are relatively fixed and the second gear 2663 is fixed on the fixing block 2621, the second gear 2663 is fixed and cannot rotate, the first gear 2661 of the other connecting rod 261 can only rotate around the corresponding second gear 2663 towards the side away from the flexible screen 30, so that the connecting rod 2611 of the other connecting rod 261 rotates along the second gear 2663 towards the side away from the flexible screen 30; the link 2611 and the guide post 2616 of the other link 261 slidably push the corresponding slide slot 2856 and the corresponding accommodating slot 2857 of the second mounting element 285, so that the second positioning assembly 28b and the second frame 23 rotate along the corresponding first virtual axis toward a side a1 away from the flexible screen 30; meanwhile, the driving posts 2644 of the other two driving members 264 slide in the corresponding toggle slots 2756, 2786 respectively, so as to drive the second driving component 274 and the corresponding third driving component 277 to rotate towards the side away from the flexible screen 30, and the second driving component 274 drives the corresponding rotating hinge 253 to rotate towards the side away from the flexible screen 30 along the second virtual axis a 2. The bendable region 31 of the flexible screen 30 bends with the hinge assembly 24 until the first frame 21 abuts the back of the second frame 23.

At this time, the hinge device 24 is bent, and the flexible screen 30 is bent along with the hinge device 24, so that the front surface of the connection hinge 251, the front surface of the rotation hinge 253, the front surface of the first transmission component 271, the front surface of the second transmission component 274, and the front surface of the third transmission component 277 are connected to each other to form an arched surface, so as to facilitate the attachment of the flexible screen 30. As shown in fig. 27, the distance between the two opposite sides of the connecting hinge 251 of the hinge body 25 in the bent state along the bending outer side of the hinge body 25 is also L, that is, the straight line distance between the two connecting hinge 251 of the hinge body 25 located on the bending outer side in the unfolded state is equal to the distance along the bending outer side of the hinge body 25 in the folded state, so that the width of the bendable region 31 of the flexible screen 30 covering the hinge body 25 in the bent state is equal to the width in the unfolded state, and the flexible screen 30 can be prevented from being damaged by being extruded or stretched. When the hinge body 25 is in the bent state, the first virtual axis a1 and the second virtual axis a2 are both located outside the hinge body 25, and preferably, the first virtual axis a1 and the second virtual axis a2 are located on a neutral layer of the flexible screen 30 that covers the hinge body 25. The first virtual axis a1 and the second virtual axis a2 of the hinge main body 25 of the present invention are both located on the neutral layer when the electronic device 100 is bent or flattened, so as to ensure that the flexible screen 30 is not damaged to the maximum extent.

In the bending process of the hinge device 24, the two first connecting shafts 2610 respectively rotate in the damping holes 2683 of the two damping members 268, each damping member 268 is far away from the elastic retainer ring 2684 of the corresponding first connecting shaft 2610 and is rotatably sleeved on the corresponding second connecting shaft 2610, and because the first connecting shaft 2610 and the second connecting shaft 2620 are respectively inserted in the corresponding damping member 268 in an interference fit manner, the hinge device 24 can be positioned at any angle in the bending process, the distance between two opposite side surfaces of the two connecting hinge joints 251 of the hinge main body 25 bent at any angle cannot be changed, that is, the width of the bendable region 31 of the flexible screen 30 bent at any angle cannot be changed, the screen 30 is prevented from being damaged due to the protrusion or stretching of the flexible screen 30 in the bending or flattening process, and the flexible screen 30 can be ensured not to be damaged to the maximum extent.

In other bending manners of the electronic device 100, only a bending force may be applied to the second frame 23, and the second frame 23 drives the corresponding connection hinge 251 and the second positioning assemblies 28b at two ends of the connection hinge 251 to rotate along the first virtual axis relative to the rotation hinge 253 toward a side away from the flexible screen 30; the second positioning assembly 28b drives the first gears 2661 of the two link members 261 to rotate around the corresponding second gears 2663 respectively towards the side away from the flexible screen 30, so that the link members 261 rotate towards the side away from the flexible screen 30 along the second gears 2663, and the link 2611 and the guide post 2616 of the link member 261 slide in the corresponding slide slot 2856 and the corresponding accommodating slot 2857 of the second mounting member 28; meanwhile, the link 261 drives the two corresponding transmission members 264 and the corresponding damping members 268 to rotate along the corresponding second connection shafts 2620 toward the side away from the flexible screen 30, the transmission posts 2644 of the two transmission members 264 drive the second transmission assembly 274 and the corresponding third transmission assembly 277 to rotate toward the side away from the flexible screen 30, and the second transmission assembly 274 drives the corresponding rotation hinge 253 to rotate along the second virtual shaft toward the side away from the flexible screen 30; the two transmission members 264 drive the other two transmission members 264 to rotate along the corresponding second connecting shafts 2620 together to a side away from the flexible screen 30 through the second gear assembly 267, the other two transmission members 264 drive the first gear 2661 of the other connecting rod 261 to rotate around the corresponding second gear 2663 to a side away from the flexible screen 30, and the other damping member 268 rotates along the corresponding second connecting shaft 2620 to a side away from the flexible screen 30; the connecting rod 2611 and the guide post 2616 of the other connecting rod 261 slidably push the corresponding sliding slot 2816 and receiving slot 2817 of the first mounting part 281, so that the first positioning assembly 28a and the first frame 21 rotate along the first virtual axis towards the side away from the flexible screen 30; meanwhile, the transmission posts 2644 of the other two transmission members 264 respectively slide in the corresponding toggle grooves 2726 and 2786 to drive the first transmission assembly 271 and the corresponding third transmission assembly 277 to rotate towards the side away from the flexible screen 30, and the first transmission assembly 271 drives the corresponding rotation hinge 253 to rotate towards the side away from the flexible screen 30 along the second virtual axis. The bendable region 31 of the flexible screen 30 bends with the hinge assembly 24 until the first frame 21 abuts the back of the second frame 23. In the bending process of the hinge device 24, the two first connecting shafts 2610 respectively rotate in the damping holes 2683 of the two damping members 268, each damping member 268 is far away from the corresponding elastic retainer ring 2684 of the first connecting shaft 2610 and is rotatably sleeved on the corresponding second connecting shaft 2610, and the first connecting shaft 2610 and the second connecting shaft 2620 are respectively inserted into the corresponding damping members 268 in an interference fit manner, so that the hinge device 24 can be positioned at any angle in the bending process.

In other bending manners of the electronic device 100, a bending force may be applied to the first frame 21 and the second frame 23 at the same time, and the first frame 21 and the second frame 23 respectively drive the corresponding connection hinge 251 to rotate towards a side away from the flexible screen 30 relative to the rotation hinge 253, so as to realize bending of the electronic device 100.

When the electronic device 100 needs to be flattened, the first frame 21 or the second frame 23 is pulled outward, and the connecting links 251 connected to the first frame 21 and the second frame 23 are rotated in a direction away from each other. Specifically, a force that pulls at least one of the first frame 21 and the second frame 23 of the electronic device 100 outward is applied, so that the connecting links 251 connected to the first frame 21 and the second frame 23 rotate in a direction away from each other, and the first positioning assemblies 28a and the corresponding second positioning assemblies 28b rotate in a direction away from each other. If a force pulling outward is applied to the first frame body 21, the first frame body 21 drives the corresponding connecting hinge 251 and the first positioning components 28a at the two ends of the connecting hinge 251 to rotate relative to the rotating hinge 253 towards one side of the flexible screen 30; the two first positioning assemblies 28a drive the first gears 2661 of the two link members 261 to rotate along the corresponding second gears 2663, respectively, because the fixing block 2621 of the fixing member 262 and the second connecting shaft 2620 are relatively fixed, and the second gears 2663 are fixed on the fixing block 2621, the second gears 2663 are fixed and do not rotate, the first gears 2661 can only rotate around the corresponding second gears 2663 towards one side of the flexible screen 30, so that the link members 261 rotate along one side of the flexible screen 30 along the second gears 2663, and the connecting rods 2611 and the guide posts 2616 of the link members 261 slide in the corresponding sliding slots 2816 and receiving slots 2817 of the first mounting member 281; meanwhile, the link 261 drives the two corresponding transmission members 264 and the corresponding damping members 268 to rotate towards one side of the flexible screen 30 along the corresponding second connecting shafts 2620, the transmission posts 2644 of the two transmission members 264 slide in the corresponding toggle grooves 2726 and 2786 respectively to drive the first transmission assembly 271 and the corresponding third transmission assembly 277 to rotate towards one side of the flexible screen 30, and the first transmission assembly 271 drives the corresponding rotating hinge 253 to rotate towards one side of the flexible screen 30 along the second virtual shaft; the two transmission members 264 drive the other two transmission members 264 to rotate along the corresponding second connecting shafts 2620 toward one side of the flexible screen 30 through the second gear assemblies 267, the other two transmission members 264 drive the other connecting rod 261 and the other damping member 268 to rotate along the corresponding second connecting shafts 2620 toward one side of the flexible screen 30, and since the fixing block 2621 of the fixing member 262 and the second connecting shafts 2620 are relatively fixed and the second gear 2663 is fixed on the fixing block 2621, the second gear 2663 is fixed and cannot rotate, the first gear 2661 of the other connecting rod 261 can only rotate around the corresponding second gear 2663 toward one side of the flexible screen 30, so that the connecting rod 2611 of the other connecting rod 261 rotates along the second gear 2663 toward one side of the flexible screen 30; the connecting rod 2611 and the guide post 2616 of the other connecting rod 261 slidably push the corresponding slide slot 2856 and accommodating slot 2857 of the second mounting member 285, so that the second positioning assembly 28b and the second frame 23 rotate along the first virtual axis toward one side of the flexible screen 30; the driving posts 2644 of the other two driving members 264 slide in the corresponding toggle slots 2756, 2786 respectively, so as to drive the second driving component 274 and the corresponding third driving component 277 to rotate along the second virtual axis toward one side of the flexible screen 30, and the second driving component 274 drives the corresponding rotating hinge 253 to rotate along the second virtual axis toward one side of the flexible screen 30. The bendable region 31 of the flexible screen 30 flattens with the hinge arrangement 24. In the process of flattening the hinge device 24, the two first connecting shafts 2610 rotate in the damping holes 2683 of the two damping members 268, the elastic retainer rings 2684 of each damping member 268, which are far away from the corresponding first connecting shaft 2610, are rotatably sleeved on the corresponding second connecting shaft 2610, and the first connecting shaft 2610 and the second connecting shaft 2620 are respectively inserted into the corresponding damping members 268 in an interference fit manner, so that the hinge device 24 can be positioned at any angle in the process of flattening. Because the distance between the two opposite side surfaces of the two connecting hinge joints 251 bent or unfolded to any angle of the hinge main body 25 is not changed, that is, the width of the bendable region 31 of the flexible screen 30 bent or unfolded to any angle is not changed, the screen can be prevented from being damaged due to the protrusion or stretching of the flexible screen 30 in the bending or unfolding process of the flexible screen 30, and the flexible screen 30 can be ensured not to be damaged to the maximum extent.

In other flattening manners of the electronic device 100, only the second frame 23 may be pulled outward, and the second frame 23 drives the corresponding connecting hinge 251 and the second positioning assemblies 28b at two ends of the connecting hinge 251 to rotate relative to the rotating hinge 253 toward one side of the flexible screen 30; the second positioning assembly 28b drives the first gears 2661 of the two link members 261 to rotate around the corresponding second gears 2663 toward one side of the flexible screen 30, so that the link members 261 rotate along the second gears 2663 toward the side of the flexible screen 30, and the link 2611 and the guide post 2616 of the link member 261 slide in the corresponding slide slot 2856 and the receiving slot 2857 of the second mounting member 28; meanwhile, the link 261 drives the two corresponding transmission members 264 and the corresponding damping members 268 to rotate along the corresponding second connection shafts 2620 toward one side of the flexible screen 30, the transmission posts 2644 of the two transmission members 264 drive the second transmission assembly 274 and the corresponding third transmission assembly 277 to rotate along the second virtual shaft toward one side of the flexible screen 30, and the second transmission assembly 274 drives the corresponding rotation hinge 253 to rotate along the second virtual shaft toward one side of the flexible screen 30; the two rotating transmission members 264 drive the other two transmission members 264 to rotate along the corresponding second connecting shafts 2620 towards one side of the flexible screen 30 through the second gear assemblies 267, the other two transmission members 264 drive the first gear 2661 of the other connecting rod 261 to rotate around the corresponding second gear 2663 towards one side of the flexible screen 30, and the other damping member 268 rotates along the corresponding second connecting shaft 2620 towards one side of the flexible screen 30; the connecting rod 2611 and the guide post 2616 of the other connecting rod 261 slidably push the corresponding sliding slot 2816 and receiving slot 2817 of the first mounting part 281 to make the first positioning assembly 28a and the first frame 21 rotate along the first virtual axis toward one side of the flexible screen 30; meanwhile, the transmission posts 2644 of the other two transmission members 264 slide in the corresponding toggle slots 2726 and 2786 respectively to drive the first transmission assembly 271 and the corresponding third transmission assembly 277 to rotate along the second virtual axis toward one side of the flexible screen 30, and the first transmission assembly 271 drives the corresponding rotation hinge 253 to rotate along the second virtual axis toward one side of the flexible screen 30. The bendable region 31 of the flexible screen 30 flattens with the hinge arrangement 24. In the process of flattening the hinge device 24, the two first connecting shafts 2610 rotate in the damping holes 2683 of the two damping members 268, the elastic retainer rings 2684 of each damping member 268, which are far away from the corresponding first connecting shaft 2610, are rotatably sleeved on the corresponding second connecting shaft 2610, and the first connecting shaft 2610 and the second connecting shaft 2620 are respectively inserted into the corresponding damping members 268 in an interference fit manner, so that the hinge device 24 can be positioned at any angle in the process of flattening.

In other bending modes of the electronic device 100, a force for pulling the first frame 21 and the second frame 23 outward may be applied to the first frame 21 and the second frame 23 simultaneously, and the first frame 21 and the second frame 23 respectively drive the corresponding connecting hinge 251 to rotate towards one side of the flexible screen 30 relative to the rotating hinge 253, so as to flatten the electronic device 100.

The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.

Claims (29)

1. The utility model provides a hinge device, its characterized in that includes the hinge main part, is located the link gear of the at least one end of hinge main part, and connect in link gear with coupling mechanism between the hinge main part, the hinge main part is including the connecting hinge section that is located its relative both sides and being located two rotation hinge sections between the connecting hinge section, link gear is including connecting respectively in two the connecting rod spare of connecting the hinge section, when one of them connecting rod spare rotates towards one side along with the connecting hinge section that corresponds, link gear drives another connecting rod spare and also rotates towards the homonymy, another connecting rod spare drives another connecting hinge section and also transmits towards the homonymy, link gear passes through coupling mechanism drives and rotates the hinge section and also rotates towards the homonymy.
2. The hinge device as claimed in claim 1, wherein the linkage mechanism further comprises a fixing member between the two link members and a transmission assembly connected between the link members and the fixing member, the transmission assembly comprising two transmission members rotatably connected between the two link members and the fixing member, each link member being connected to the fixing member by a first gear assembly, and the two transmission members being connected to each other by a second gear assembly.
3. The hinge device as claimed in claim 2, wherein each link member includes a first connecting shaft and a link disposed at one side of the first connecting shaft, the link being connected to the corresponding connecting hinge, and the first gear assembly includes a first gear disposed at the first connecting shaft and a second gear disposed at the fixing member and engaged with the first gear.
4. The hinge assembly as claimed in claim 3, wherein the fixing member includes a fixing block and two parallel spaced second connecting shafts provided to the fixing block, the first connecting shaft and the second connecting shaft being spaced apart and parallel, each of the driving members being rotatably connected between the first connecting shaft and the corresponding second connecting shaft.
5. The hinge device as claimed in claim 4, wherein each of the transmission members includes a transmission plate, the transmission plate is provided with two shaft holes, and the first connecting shaft and the second connecting shaft adjacent to the first connecting shaft are respectively inserted into the two shaft holes.
6. The hinge device as claimed in claim 4, wherein the second gear assembly includes a third gear provided at an end of each of the transmission members adjacent to the corresponding second connecting shaft, the third gears of the two transmission members being engaged with each other.
7. The hinge assembly as claimed in claim 4, wherein a damping member is provided between each first connecting shaft and the corresponding second connecting shaft, the damping member being adapted to provide a resistance to rotation of the hinge assembly.
8. The hinge device as claimed in claim 7, wherein the damping member comprises a plurality of stacked damping plates, each of the damping plates is provided with two damping holes having an elastically stretchable aperture, and the first connecting shaft and the second connecting shaft are respectively inserted into the two damping holes in an interference fit manner.
9. The hinge assembly of claim 4, wherein each connecting rod is connected to a corresponding connecting joint by a positioning assembly, the connecting rod being movably connected to the positioning assembly, rotation of the connecting joint via the positioning assembly causing the connecting rod to rotate relative to the stationary member along the first gear assembly.
10. The hinge assembly of claim 1 wherein each connecting hinge is pivotable about a first virtual axis with respect to its associated pivot joint and two of said pivot joints are pivotable about a second virtual axis, said first virtual axis being spaced parallel to said second virtual axis.
11. The hinge apparatus of claim 10, wherein the second virtual axis is located between two first virtual axes, the first virtual axes having the same axis radius as the second virtual axes.
12. Hinge device as claimed in claim 10, characterized in that the straight distance between the two sides of the two connecting articulations on the outside of the bend in the flattened state is equal to the distance along the outside of the bend of the hinge body in the folded state.
13. The hinge assembly of claim 10, wherein the first virtual axis and the second virtual axis are both located on a flexible screen overlaying the hinge body.
14. The hinge assembly as claimed in claim 10, wherein a connection mechanism is disposed between the linkage mechanism and the hinge joint body, the connection mechanism includes a first transmission component and a second transmission component respectively connected between two transmission members and two rotating hinge joints, the rotation of the two transmission members can respectively drive the first transmission component and the second transmission component to rotate along the second virtual axis, and the first transmission component and the second transmission component drive the two rotating hinge joints to rotate along the second virtual axis.
15. The hinge device as claimed in claim 14, wherein the first transmission assembly comprises a first transmission member and a first connecting member connected to the first transmission member, one end of the first connecting member facing away from the first transmission member is connected to the corresponding rotating hinge joint, an end surface of the first transmission member facing the linkage mechanism is provided with a circular arc-shaped toggle groove, and the transmission member is provided with a transmission post inserted into the toggle groove so as to drive the first transmission member to rotate along the second virtual axis through the toggle groove; the second transmission assembly comprises a second transmission piece and a second connecting piece connected to the second transmission piece, one end, away from the second transmission piece, of the second connecting piece is connected to the corresponding rotating hinge joint, the end face, facing the linkage mechanism, of the second transmission piece is provided with a circular arc-shaped shifting groove, and the transmission piece is provided with a transmission column inserted in the shifting groove so as to drive the second transmission piece to rotate along the second virtual shaft through the shifting groove.
16. The hinge assembly of claim 15, wherein the connecting mechanism further comprises two connecting covers, each of the two connecting covers covering the linkage mechanism, the two connecting covers being connected to the first transmission assembly and the second transmission assembly, respectively.
17. The hinge assembly of claim 9, wherein the positioning members include mounting members and engaging members connected between the mounting members and the corresponding connecting joints, the connecting rods are movably connected to the mounting members, and the engaging members of the two positioning members are rotatably connected to the first connecting member and the second connecting member, respectively.
18. The hinge assembly of claim 17, wherein the first connecting member is slidably connected to the corresponding engaging member through an arc-shaped connecting block, and the second connecting member is slidably connected to the corresponding engaging member through an arc-shaped connecting block.
19. The hinge assembly of claim 17, wherein the first connecting member is slidably coupled to the second connecting member by a circular guide slider and a circular guide slot.
20. The hinge assembly as claimed in claim 17, wherein each of the mounting members has a sliding groove corresponding to the connecting rod, an inner surface of the sliding groove is provided with an arc-shaped receiving groove adjacent to the linkage mechanism, one side of the connecting rod is provided with a sliding guide pillar away from the first connecting shaft, and the sliding guide pillar is slidably received in the receiving groove when the connecting rod slides along the sliding groove.
21. An electronic device comprising a flexible screen, a housing and a hinge device according to any one of claims 1-20, the housing comprising a first frame and a second frame, the hinge device being disposed between the first frame and the second frame, the flexible screen being disposed on the housing and the hinge device.
22. A hinge is characterized by comprising a linkage mechanism and a connecting mechanism connected to the linkage mechanism, wherein the linkage mechanism comprises a plurality of linkage pieces connected in a rotating mode, the connecting mechanism comprises a plurality of connecting pieces connected in a rotating mode, and when adjacent linkage pieces rotate relatively, the linkage mechanism drives the adjacent connecting pieces to rotate relatively to enable the hinge to be bent.
23. A hinge as claimed in claim 22, wherein adjacent linkage members are relatively rotatable about respective solid axes and adjacent link members are relatively rotatable about respective virtual axes.
24. The hinge of claim 23, wherein the virtual axis is located between adjacent links.
25. The hinge of claim 23, wherein the virtual axis is located outside of adjacent links.
26. The hinge according to claim 22, wherein each connecting member is slidably and rotatably connected to the corresponding link member by a rotating shaft.
27. The hinge according to claim 22, wherein the connecting member comprises a first transmission member and a first connecting member, the first transmission member defines a toggle slot for the rotation shaft to pass through, and the first transmission member is connected between the first connecting member and the linkage member.
28. The hinge according to claim 27, wherein the first transmission member is pivotally connected to the first link member.
29. The hinge of claim 27, wherein the toggle slot is arcuate, the arcuate being curved in the same direction as the hinge.

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