CN211901259U - Pivot device and electronic device using same - Google Patents

Abstract

A pivot device comprises a first shaft, a second shaft, a third shaft, a first bracket, a switching mechanism and a linkage mechanism. The first shaft, the second shaft and the third shaft are arranged in parallel. The first shaft and the second shaft are pivoted on the first bracket. The switching mechanism is arranged between the first shaft and the second shaft, so that the first shaft and the second shaft rotate in a segmented manner in the opening and closing action of the pivot device. The linkage mechanism is arranged between the second shaft and the third shaft, so that the first support and the third shaft rotate simultaneously in opposite rotating directions. An electronic device comprises the hinge device, a first plate, a second plate and an auxiliary plate, wherein a main screen and an auxiliary screen can be arranged on the first plate and the auxiliary plate respectively, and more information can be displayed. When the first plate and the second plate are unfolded through the hinge device, the hinge device can also lift the auxiliary plate, so that the user can watch the auxiliary screen at a better angle. In addition, the pivot device has segmented rotation in the opening and closing action through the switching mechanism, so that the opening and closing action of the first plate and the second plate is smooth.

Description

Pivot device and electronic device using same

Technical Field

The present invention relates to a hinge device and an electronic device using the same, and more particularly, to a hinge device with an auxiliary screen and an electronic device using the same.

Background

An existing foldable electronic device includes a hinge, a first plate and a second plate. The hinge device is connected between the first plate and the second plate. Through the hinge, the first plate and the second plate can be opened and closed (unfolded or closed), so that the included angle between the first plate and the second plate is, for example, any angle from 0 to 130 degrees. The electronic device is, for example, a notebook computer, and comprises components such as a screen, a mainboard, a hard disk, a keyboard and the like; the screen can be arranged on the first plate, and the main board, the hard disk and the keyboard can be arranged on the second plate. However, such a foldable electronic device is provided with a screen only at the first plate member, so that information that can be displayed is insufficient in some applications. Although another foldable electronic device is provided with an auxiliary screen at a portion of the second plate, the screen (main screen) of the first plate and the auxiliary screen of the second plate can display more information, but the auxiliary screen flatly disposed on the second plate makes the angle at which the user views the auxiliary screen not good, which affects the image quality of the auxiliary screen viewed by the user.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pivot ware and use its electron device, can show more information, and let the user watch the angle of auxiliary screen better, improve the image quality of the auxiliary screen that the user saw.

In order to achieve the above object, the present invention provides a pivot device, which includes a first shaft, a second shaft, a third shaft, a first bracket, a switching mechanism and a linkage mechanism. The first shaft, the second shaft and the third shaft are arranged in parallel. The first shaft and the second shaft are pivoted on the first bracket. The switching mechanism is arranged between the first shaft and the second shaft, so that the first shaft and the second shaft rotate in a segmented manner in the opening and closing action of the pivot device. The linkage mechanism is arranged between the second shaft and the third shaft, so that the first support and the third shaft rotate simultaneously in opposite rotating directions.

In an embodiment of the present invention, the switching mechanism is disposed corresponding to a side of the first bracket. The switching mechanism comprises a first cam, a second cam, a sliding block, a first limiting block and a second limiting block. The first cam is fixedly arranged on the first shaft, and the second cam is fixedly arranged on the second shaft. The sliding block is slidably arranged between the first cam and the second cam. The first limiting block and the second limiting block are fixedly arranged on the first support. The rotating track of the first cam is interfered by the first limiting block and the sliding block, and the rotating track of the second cam is interfered by the second limiting block and the sliding block, so that the first shaft and the second shaft rotate in a segmented mode in the opening and closing action of the hinge device.

In an embodiment of the present invention, the sliding block has a first contact surface and a second contact surface corresponding to the first cam and the second cam, respectively. The first cam is provided with a first convex part and a first concave part corresponding to the first contact surface, and the first concave part is provided with a first end and a second end which are respectively connected with two ends of the first convex part. The second cam is provided with a second convex part and a second concave part corresponding to the second contact surface, and the second concave part is provided with a first end and a second end which are respectively connected with two ends of the second convex part. The first limiting block and the second limiting block are both provided with a first blocking part and a second blocking part.

In an embodiment of the present invention, when the hinge device is at 0 degree, the first end of the first concave portion abuts against the first contact surface, and the second convex portion abuts against the second contact surface, so that the sliding block cannot slide, and the first shaft cannot rotate relative to the first bracket along the first rotation direction; the second end of the first concave part is abutted against the first blocking part of the first limiting block, so that the first shaft cannot rotate relative to the first support along a second rotating direction opposite to the first rotating direction; the first end of the second concave part is abutted against the first blocking part of the second limiting block, so that the second shaft cannot rotate relative to the first support along the first rotating direction.

In an embodiment of the invention, when the first support rotates in the first direction of rotation, i.e. the second shaft rotates in the second direction of rotation relative to the first support, the third shaft rotates simultaneously in the second direction of rotation. When the second shaft rotates relative to the first bracket along the second rotation direction and the hinge device changes from 0 degree to the first angle, the second end of the second concave part is abutted against the second blocking part of the second limiting block, so that the second shaft cannot rotate relative to the first bracket along the second rotation direction, namely the first bracket cannot rotate along the first rotation direction; the second cam is changed into a second concave part facing the second contact surface and having a distance from the second convex part abutting against the second contact surface, so that the first cam can push the sliding block to slide, and the first shaft can start to rotate relative to the first bracket along the first rotation direction.

In an embodiment of the present invention, when the first shaft rotates along the first rotation direction relative to the first bracket and the hinge device changes from being in the first angle to the second angle, the first cam changes from the first concave portion to the first convex portion abutting against the first contact surface, the first end of the second concave portion abuts against the second contact surface, so that the sliding block cannot slide, and the second shaft cannot rotate along the first rotation direction relative to the first bracket. When the first shaft rotates relative to the first support along the first rotating direction and the hinge device changes from the second angle to the third angle, the first convex part is kept to abut against the first contact surface, and the first end of the first concave part is abutted against the second blocking part of the first limiting block, so that the first shaft cannot rotate relative to the first support along the first rotating direction.

In an embodiment of the present invention, the first angle is 60 degrees, the second angle is 90 degrees, and the third angle is 130 degrees.

In an embodiment of the present invention, the linking mechanism includes a second bracket, a first gear, a second gear and two idle gears. The second support is fixedly arranged on the first support, and the first shaft and the second shaft are pivoted on the second support. The first gear is pivoted on the second shaft and is fixedly arranged on the second bracket. The second gear is fixedly arranged on the third shaft. The two idle gears are respectively meshed with the first gear and the second gear, and the two idle gears are mutually meshed.

In an embodiment of the present invention, the hinge device further includes a first torsion member, a second torsion member and a third torsion member. The first torsion piece, the second torsion piece and the third torsion piece are respectively arranged on the first shaft, the second shaft and the third shaft.

The utility model discloses provide an electron device in addition, it includes as before pivot ware, first plate, second plate and supplementary plate. The pivot device also comprises a foot rest. The second plate is provided with a groove, and a track is arranged in the groove. The auxiliary plate can be accommodated in the groove. One side of the first plate is fixedly connected with the first shaft, one side of the auxiliary plate is fixedly connected with the second shaft, the other side, opposite to the auxiliary plate, is pivoted to one side of the groove, one end of the foot rest is fixedly connected with the third shaft, and the other end, opposite to the foot rest, of the foot rest is slidably connected with the track.

In an embodiment of the present invention, the hinge device further includes a first support frame and a second support frame. The first bearing frame is fixedly connected with the first shaft, and the second bearing frame is fixedly connected with the second shaft. The first plate is fixedly connected with the first shaft through fixedly connecting the first bearing frame, and the auxiliary plate is fixedly connected with the second shaft through fixedly connecting the second bearing frame.

In summary, according to the present invention, the hinge device and the electronic device using the same, the electronic device is further provided with an auxiliary plate on the second plate except the first plate and the second plate, the main screen can be set on the first plate, and the auxiliary screen can be set on the auxiliary plate, and the main screen and the auxiliary screen can display more information. When the first plate and the second plate are unfolded through the hinge device, the hinge device can also lift the auxiliary plate, so that the angle for a user to watch the auxiliary screen is better, and the image quality of the auxiliary screen seen by the user is improved. In addition, because the first plate and the second plate are respectively fixedly connected with the first shaft and the second shaft of the pivot device, and the switching mechanism enables the first shaft and the second shaft to rotate in a segmented manner in the opening and closing action of the pivot device, the first plate and the second plate can be opened and closed in a segmented manner, so that the opening and closing action of the first plate and the second plate is smooth.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic view of an electronic device according to an embodiment of the present invention.

Fig. 2 is a schematic view of an electronic device according to an embodiment of the present invention at another viewing angle.

Fig. 3 is a schematic view of a hinge according to an embodiment of the present invention.

Fig. 4 is an exploded view of a hinge according to an embodiment of the present invention.

Fig. 5 is an opening/closing schematic view of an electronic device according to an embodiment of the present invention.

Fig. 6 is an opening and closing schematic view of a hinge according to an embodiment of the present invention.

Fig. 7 is a side view of the switching mechanism with the pivotal device at 0 degree according to an embodiment of the present invention.

Fig. 8 is a side view of the switching mechanism with the hinge device at 60 degrees according to an embodiment of the present invention.

Fig. 9 is a side view of the switching mechanism with the hinge device at 90 degrees according to an embodiment of the present invention.

Fig. 10 is a side view of a switching mechanism with a 130 degree pivot according to an embodiment of the present invention.

Description of the reference symbols

100: pivot device

10: first shaft

20: second shaft

30: third shaft

40: first support

41: first side

42: second surface

43: first through hole

44: second through hole

45: retaining wall

50: switching mechanism

51: first cam

511: first convex part

512: first concave part

512 a: first end

512 b: second end

52: second cam

521: second convex part

522: second concave part

522 a: first end

522 b: second end

53: sliding block

531: first contact surface

532: second contact surface

54: first limiting block

541: the first blocking part

542: second stop part

55: second limiting block

551: the first blocking part

552: second stop part

60: linkage mechanism

61: second support

611: clamping groove

612: third through hole

613: fourth through hole

62: first gear

621: clamping part

622: fifth through hole

63: second gear

64: idler wheel

65: third support

71: first bearing frame

72: second bearing frame

80: foot stool

80 a: first end

80 b: second end

91: first torsion member

92: second torsion member

93: third torsion member

200: electronic device

210: first plate

220: second plate

221: groove

222: track

230: auxiliary plate

A: pin joint

R1: first direction of rotation

R2: second direction of rotation

D1: distance.

Detailed Description

In the following embodiments, the same or similar reference numerals denote the same or similar components. In addition, directional terms referred to in the following examples, for example: upper, lower, left, right, front, rear, etc. are directions with reference to the drawings, and thus, the directional terms used are intended to be illustrative, and not restrictive.

Referring to fig. 1 and fig. 2, fig. 1 and fig. 2 are schematic diagrams of an electronic device 200 according to an embodiment of the present invention at different viewing angles, respectively. The electronic device 200 is a foldable electronic device, and includes a hinge 100, a first plate 210, a second plate 220 and an auxiliary plate 230; wherein, the second plate 220 is provided with a groove 221, a rail 222 is arranged in the groove 221, and the auxiliary plate 230 can be accommodated in the groove 221 and lifted up from the groove 221. The hinge device 100 is connected between the first plate 210, the second plate 220 and the auxiliary plate 230. The first plate 210 and the second plate 220 can be opened and closed (opened or closed) by the hinge 100, so that the included angle between the first plate 210 and the second plate 220 is, for example, any angle of 0 to 130 degrees, and the auxiliary plate 230 can be lifted when the first plate 210 and the second plate 220 are opened, which will be described in detail later. The electronic device 200 is, for example, a notebook computer, and includes a main screen, an auxiliary screen, a main board, a hard disk, a keyboard, and other components; the main screen may be disposed on the first board 210, the auxiliary screen may be disposed on the auxiliary board 230, and the main board, the hard disk and the keyboard may be disposed on the second board 220. In the present embodiment, the electronic device 200 employs two hinge devices 100, but is not limited thereto.

Referring to fig. 3 and 4, fig. 3 and 4 are a schematic view and an exploded view of a hinge 100 according to an embodiment of the present invention, respectively. The hinge device 100 includes a first shaft 10, a second shaft 20, a third shaft 30, a first bracket 40, a switching mechanism 50 and a linkage mechanism 60. The first, second and third shafts 10, 20, 30 are arranged parallel to each other. The first shaft 10 and the second shaft 20 are pivotally disposed on the first bracket 40. The switching mechanism 50 is disposed between the first shaft 10 and the second shaft 20, and causes the first shaft 10 and the second shaft 20 to rotate in stages during the opening and closing operations of the hinge 100. The interlocking mechanism 60 is provided between the second shaft 20 and the third shaft 30, and rotates the first bracket 40 and the third shaft 30 in opposite rotational directions simultaneously. The structure and arrangement of the components of the hinge 100 will be described in detail below.

The first bracket 40 has a first face 41 and a second face 42 opposite to each other, and is formed with a first circular through hole 43 and a second circular through hole 44. The first shaft 10 is rotatably disposed through the first through hole 43, and the second shaft 20 is rotatably disposed through the second through hole 44, such that the first shaft 10 and the second shaft 20 are pivotally disposed on the first bracket 40. In addition, retaining walls 45 are formed on both sides of the first surface 41 of the first bracket 40 between the first through hole 43 and the second through hole 44, respectively.

The switching mechanism 50 is disposed corresponding to the first face 41 of the first bracket 40. The switching mechanism 50 includes a first cam 51, a second cam 52, a slide block 53, a first stopper 54, and a second stopper 55. As shown in fig. 4, the first shaft 10 is a special-shaped shaft, and the first cam 51 also has a corresponding special-shaped hole, so the first cam 51 is slidably disposed on the first shaft 10, that is, the first cam 51 is fixedly disposed on the first shaft 10 by a snap-fit manner, so the first cam 51 and the first shaft 10 rotate together. The second cam 52 is also fixed to the second shaft 20 by an engaging method in the same manner as the first cam 51, and therefore the second cam 52 rotates together with the second shaft 20. The sliding block 53 is slidably disposed between the first cam 51 and the second cam 52, and the sliding block 53 is limited by the two retaining walls 45 and can only slide linearly between the first cam 51 and the second cam 52. The first stopper 54 and the second stopper 55 are fixed to the first surface 41 of the first bracket 40. The rotation track of the first cam 51 is interfered by the first stopper 54 and the sliding block 53, and the rotation track of the second cam 52 is interfered by the second stopper 55 and the sliding block 53, so that the first shaft 10 and the second shaft 20 rotate in stages during the opening and closing operation of the hinge 100. In one embodiment, the first cam 51 is integrally formed on the first shaft 10, the second cam 52 is integrally formed on the second shaft 20, and the first stopper 54 and the second stopper 55 are integrally formed on the first bracket 40. The following will describe how the switching mechanism 50 rotates the first shaft 10 and the second shaft 20 in a segmented manner during the opening and closing operation of the hinge 100.

The linkage mechanism 60 includes a second bracket 61, a first gear 62, a second gear 63, two idle gears 64, and two third brackets 65. The second bracket 61 is fixedly arranged on the first bracket 40, and the first shaft 10 and the second shaft 20 are pivoted on the second bracket 61. Specifically, the second bracket 61 is formed with two locking slots 611 corresponding to the retaining walls 45 at two sides thereof, and the second bracket 61 is formed with a circular third through hole 612 and a non-circular fourth through hole 613. The second bracket 61 is fixed to the first bracket 40 by the engagement between the engaging groove 611 and the retaining wall 45, so that the second bracket 61 and the first bracket 40 rotate together. The first shaft 10 is rotatably disposed through the third through hole 612, and the second shaft 20 is rotatably disposed through the fourth through hole 613, so that the first shaft 10 and the second shaft 20 are pivotally disposed on the second bracket 61. Therefore, the first shaft 10 and the second shaft 20 are pivoted to the first bracket 40 and the second bracket 61.

The first gear 62 is pivoted to the second shaft 20 and is fixedly disposed on the second bracket 61. The second gear 63 is fixedly provided to the third shaft 30. The two idle gears 64 are respectively meshed with the first gear 62 and the second gear 63, and the two idle gears 64 are mutually meshed. Specifically, the first gear 62 further has a fastening portion 621 formed by protruding along the axial direction thereof, and a circular fifth through hole 622 penetrating through the first gear 62 and the fastening portion 621; the first gear 62 is rotatably sleeved on the second shaft 20 through the fifth through hole 622, so that the first gear 62 is pivotally arranged on the second shaft 20; the first gear 62 is engaged with the fourth through hole 613 of the second bracket 61 through the engaging portion 621, so that the first gear 62 is fixedly disposed on the second bracket 61. As shown in fig. 4, the third shaft 30 is a special-shaped shaft, and the second gear 63 has a special-shaped hole in cooperation with the special-shaped shaft of the third shaft 30, so that the second gear 63 is fixed to the third shaft 30 by a snap fit. The first gear 62, the second gear 63 and the two idle gears 64 are clamped between the two third brackets 65 and are all pivoted on the third brackets 65; the first gear 62 and the second gear 63 are respectively pivoted to the third bracket 65 through the second shaft 20 and the third shaft 30.

Since the first gear 62 is fixedly arranged on the second bracket 61 and the second bracket 61 is fixedly arranged on the first bracket 40, the first gear 62 and the first bracket 40 rotate together; in addition, since the second gear 63 is fixedly provided to the third shaft 30, the second gear 63 rotates together with the third shaft 30. Through the two idle gears 64, the first gear 62 and the second gear 63 rotate simultaneously in opposite rotation directions, so that the first bracket 40 and the third shaft 30 rotate simultaneously in opposite rotation directions, and the linkage mechanism 60 rotates the first bracket 40 and the third shaft 30 simultaneously in opposite rotation directions.

The hinge device 100 further comprises a first frame 71 and a second frame 72. The first bracket 71 is fixedly connected to the first shaft 10 by an engaging method, and the second bracket 72 is fixedly connected to the second shaft 20 by an engaging method. As shown in fig. 1 and fig. 2, one side of the first plate 210 of the electronic device 200 is fixedly connected to the first bracket 71 by a locking manner to indirectly fixedly connect the first shaft 10, and one side of the auxiliary plate 230 is fixedly connected to the second bracket 72 by a locking manner to indirectly fixedly connect the second shaft 20; in addition, the opposite side of the auxiliary plate 230 is pivoted to one side of the groove 221 (i.e., the pivoting point a in fig. 5). When the first shaft 10 rotates, the first bracket 71 and the first plate 210 rotate along with the first shaft 10; when the second shaft 20 rotates, the second bracket 72 and the auxiliary plate 230 rotate along with the second shaft 20. However, the present invention is not limited thereto, for example, the first plate and the auxiliary plate may be directly and fixedly connected to the first shaft and the second shaft, respectively.

The hinge 100 further comprises a foot rest 80. The foot rest 80 has opposite first and second ends 80a, 80 b. The first end 80a of the foot rest 80 is fixedly connected with the third shaft 30 in a clamping manner; as shown in fig. 1 and 2, the second end 80b of the foot rest 80 is slidably connected to the rail 222.

The hinge device 100 further includes a first torsion member 91, a second torsion member 92 and a third torsion member 93. The first torsion member 91, the second torsion member 92 and the third torsion member 93 are respectively disposed on the first shaft 10, the second shaft 20 and the third shaft 30, and can generate torsion when the first shaft 10, the second shaft 20 and the third shaft 30 rotate, so that the first plate 210, the auxiliary plate 230 and the second plate 220 respectively connected to the first shaft 10, the second shaft 20 and the third shaft 30 can be stopped at any angle. In the present embodiment, the first torsion member 91, the second torsion member 92 and the third torsion member 93 are all spring-type torsion members composed of a washer, a spring and a packing member, but not limited thereto.

Referring to fig. 5 and fig. 6, fig. 5 and fig. 6 are schematic diagrams illustrating the electronic device 200 and the hinge 100 used therein. When the first plate 210 and the second plate 220 of the electronic device 200 are opened and closed to make the included angle between the first plate 210 and the second plate 220 a specific angle, the electronic device 200 and the hinge 100 are said to be at the specific angle. As shown in fig. 5, a side view of the electronic device 200 at 0 degrees, 15 degrees, 60 degrees, 90 degrees, and 130 degrees is shown. As shown in fig. 6, a side view of the hinge 100 at 0, 60, 90 and 130 degrees is shown.

Referring to fig. 5 to 10, fig. 7 to 10 are side views of the switching mechanism 50 with the hinge device 100 at 0 degree, 60 degrees, 90 degrees and 130 degrees, respectively. First, as shown in fig. 7, the slide block 53 has a first contact surface 531 and a second contact surface 532 corresponding to the first cam 51 and the second cam 52, respectively. The first cam 51 has a first convex portion 511 and a first concave portion 512 corresponding to the first contact surface 531, and the first concave portion 512 has a first end 512a and a second end 512b and is connected to two ends of the first convex portion 511 respectively. The second cam 52 has a second convex portion 521 and a second concave portion 522 corresponding to the second contact surface 532, and the second concave portion 522 has a first end 522a and a second end 522b and is respectively connected to two ends of the second convex portion 521. The first stopper 54 has a first blocking portion 541 and a second blocking portion 542. The second stopper 55 has a first blocking portion 551 and a second blocking portion 552.

When the hinge 100 is at 0 degree, as shown in fig. 6 and 7, the first end 512a of the first concave portion 512 abuts against the first contact surface 531, and the second convex portion 521 abuts against the second contact surface 532, so that the slide block 53 cannot slide, and the first shaft 10 cannot rotate relative to the first bracket 40 in the first rotation direction R1; the second end 512b of the first recess 512 abuts against the first stopper 541 of the first stopper 54, so that the first shaft 10 cannot rotate in a second rotation direction R2 opposite to the first rotation direction R1 with respect to the first bracket 40; the first end 522a of the second recess 522 abuts the first stopper 551 of the second stopper 55, so that the second shaft 20 cannot rotate in the first rotational direction R1 with respect to the first bracket 40. In short, when the hinge 100 is at 0 degree, the first shaft 10 cannot rotate in the first rotation direction R1 or the second rotation direction R2 relative to the first bracket 40, so the first shaft 10 is in a locked (non-rotatable) state; the second shaft 20 is not rotatable relative to the first bracket 40 in the first rotational direction R1 but is rotatable in the second rotational direction R2. At this time, as shown in fig. 5, the foot stand 80 and the auxiliary plate 230 of the hinge device 100 are received in the groove 221.

When the hinge device 100 is at 0 degree, the second shaft 20 can rotate along the second rotation direction R2 relative to the first bracket 40, that is, the first bracket 40 can rotate along the first rotation direction R1 with the second shaft 20 as a center, and the third shaft 30 can rotate along the second rotation direction R2 through the linking mechanism 60. When the first bracket 40 rotates in the first rotation direction R1 (i.e. the second shaft 20 rotates in the second rotation direction R2 relative to the first bracket 40) and the hinge 100 changes from 0 degrees to 60 degrees, as shown in fig. 6 and 8, the second end 522b of the second recess 522 abuts against the second stopper 552 of the second stopper 55, so that the second shaft 20 cannot rotate in the second rotation direction R2 relative to the first bracket 40, i.e. the first bracket 40 cannot rotate any more in the first rotation direction R1; the second cam 52 is changed from the second convex portion 521 abutting the second contact surface 532 to the second concave portion 522 facing the second contact surface 532 and separated by a distance D1, and the distance D1 allows the first cam 51 to push the sliding block 53 to slide, so that the first shaft 10 can start rotating relative to the first bracket 40 in the first rotation direction R1. In short, when the hinge 100 is at 60 degrees, the first shaft 10 cannot rotate in the second rotation direction R2 but can rotate in the first rotation direction R1 relative to the first bracket 40; the second shaft 20 cannot rotate in the second rotational direction R2 but can rotate in the first rotational direction R1 relative to the first bracket 40, i.e., the first bracket 40 cannot rotate in the first rotational direction R1 but can rotate in the second rotational direction R2. At this time, as shown in fig. 5, since the first end 80a of the foot stand 80 of the hinge device 100 is fixedly connected to the third shaft 30, and the second end 80b is slidably connected to the rail 222, the simultaneous rotation of the first bracket 40 and the third shaft 30 in opposite rotation directions will rotate the first end 80a of the foot stand 80, thereby forcing the second end 80b of the foot stand 80 to slide in the rail 222 to lift the auxiliary plate 230.

When the auxiliary plate 230 is completely lifted and the hinge 100 is at 60 degrees at this time, the first plate 210 is continuously applied with a force to open the hinge at a larger angle, that is, when the first shaft 10 rotates in the first rotation direction R1 relative to the first bracket 40 and the hinge 100 changes from 60 degrees to 90 degrees, as shown in fig. 6 and 9, the first cam 51 changes from the first concave portion 512 to the first convex portion 511 to abut against the first contact surface 531, and the first end 522a of the second concave portion 522 abuts against the second contact surface 532, so that the sliding block 53 cannot slide, and the second shaft 20 cannot rotate in the first rotation direction R1 relative to the first bracket 40. In short, when the hinge device 100 is at 90 degrees, the first shaft 10 can rotate in the first rotation direction R1 and the second rotation direction R2 relative to the first bracket 40; the second shaft 20 cannot rotate in the first rotation direction R1 and the second rotation direction R2 relative to the first bracket 40, and the second shaft 20 is in a locked (non-rotatable) state, i.e., the first bracket 40 cannot rotate in the first rotation direction R1 and cannot rotate in the second rotation direction R2.

When the first shaft 10 rotates relative to the first bracket 40 in the first rotation direction R1 and the hinge 100 changes from 90 degrees to 130 degrees, the first convex portion 511 keeps abutting against the first contact surface 531, the first end 512a of the first concave portion 512 abuts against the second stopping portion 542 of the first stopper 54, and the first shaft 10 cannot rotate relative to the first bracket 40 in the first rotation direction R1. In short, when the hinge 100 is at 130 degrees, the first shaft 10 cannot rotate in the first rotation direction R1 but can rotate in the second rotation direction R2 relative to the first bracket 40; the second shaft 20 cannot rotate relative to the first bracket 40 in the first and second rotational directions R1 and R2, and the second shaft 20 is in a locked (non-rotatable) state, i.e., the first bracket 40 cannot rotate in the first and second rotational directions R1 and R2.

In the present embodiment, the hinge device 100 has a segmented rotation of 0 to 60, 60 to 90 and 90 to 130 degrees in the opening and closing actions through the switching mechanism 50, but is not limited thereto; for example, by changing the design of the first cam, the second cam, the first stopper and the second stopper, other segmental rotations, such as 0-70, 70-100 and 100-120 degrees segmental rotation, can be designed.

In summary, according to the present invention, the hinge device and the electronic device using the same, the electronic device is further provided with an auxiliary plate on the second plate except the first plate and the second plate, the main screen can be set on the first plate, and the auxiliary screen can be set on the auxiliary plate, and the main screen and the auxiliary screen can display more information. When the first plate and the second plate are unfolded through the hinge device, the hinge device can also lift the auxiliary plate, so that the angle for a user to watch the auxiliary screen is better, and the image quality of the auxiliary screen seen by the user is improved. In addition, because the first plate and the second plate are respectively fixedly connected with the first shaft and the second shaft of the pivot device, and the switching mechanism enables the first shaft and the second shaft to rotate in a segmented manner in the opening and closing action of the pivot device, the first plate and the second plate can be opened and closed in a segmented manner through the pivot device, so that the opening and closing action of the first plate and the second plate is smooth.

Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of other modifications and variations within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A hinge device, comprising:

the first shaft, the second shaft and the third shaft are arranged in parallel;

the first support, wherein the first shaft and the second shaft are pivoted on the first support;

the switching mechanism is arranged between the first shaft and the second shaft and enables the first shaft and the second shaft to rotate in a segmented manner in the opening and closing action of the pivot device; and

and the linkage mechanism is arranged between the second shaft and the third shaft and enables the first support and the third shaft to rotate simultaneously in opposite rotating directions.

2. The hinge device of claim 1, wherein the switching mechanism is disposed corresponding to a surface of the first bracket, the switching mechanism comprises a first cam, a second cam, a sliding block, a first stopper and a second stopper, the first cam is fixedly disposed on the first shaft, the second cam is fixedly disposed on the second shaft, the sliding block is slidably disposed between the first cam and the second cam, and the first stopper and the second stopper are fixedly disposed on the first bracket; the rotating track of the first cam is interfered by the first limiting block and the sliding block, and the rotating track of the second cam is interfered by the second limiting block and the sliding block, so that the first shaft and the second shaft rotate in a segmented mode in the opening and closing action of the hinge device.

3. The hinge of claim 2, wherein the sliding block has a first contact surface and a second contact surface corresponding to the first cam and the second cam, respectively, the first cam has a first convex portion and a first concave portion corresponding to the first contact surface, the first concave portion has a first end and a second end and connects two ends of the first convex portion, respectively, the second cam has a second convex portion and a second concave portion corresponding to the second contact surface, the second concave portion has a first end and a second end and connects two ends of the second convex portion, respectively; the first limiting block and the second limiting block are provided with a first blocking part and a second blocking part.

4. A hinge as claimed in claim 3, wherein when the hinge is at 0 degrees, the first end of the first concave portion abuts the first contact surface and the second convex portion abuts the second contact surface, so that the sliding block cannot slide and the first shaft cannot rotate relative to the first bracket in a first rotation direction; a second end of the first concave part is abutted against a first blocking part of the first limiting block, so that the first shaft cannot rotate relative to the first bracket along a second rotating direction opposite to the first rotating direction; the first end of the second concave portion abuts against the first blocking portion of the second limiting block, so that the second shaft cannot rotate relative to the first support along the first rotating direction.

5. A hub according to claim 4, wherein when the first bracket is rotated in the first rotational direction, i.e. the second shaft is rotated in the second rotational direction relative to the first bracket, the third shaft is simultaneously rotated in the second rotational direction; when the second shaft rotates relative to the first bracket along the second rotation direction and the hinge device changes from 0 degree to a first angle, the second end of the second concave part abuts against the second blocking part of the second limiting block, so that the second shaft cannot rotate relative to the first bracket along the second rotation direction, namely the first bracket cannot rotate along the first rotation direction; the second cam is changed from the second convex part abutting against the second contact surface to the second concave part facing the second contact surface and being at a distance, so that the first cam can push the sliding block to slide, and the first shaft can start to rotate relative to the first bracket along the first rotation direction.

6. The hinge of claim 5, wherein when the first shaft rotates relative to the first bracket in the first rotation direction and the hinge changes from the first angle to a second angle, the first cam changes from the first concave portion to the first convex portion to abut against the first contact surface, and a first end of the second concave portion abuts against the second contact surface, so that the sliding block cannot slide, and the second shaft cannot rotate relative to the first bracket in the first rotation direction; when the first shaft rotates relative to the first bracket along the first rotating direction and the hinge device changes from the second angle to a third angle, the first convex part is kept in contact with the first contact surface, and the first end of the first concave part is in contact with the second stopping part of the first limiting block, so that the first shaft cannot rotate relative to the first bracket along the first rotating direction.

7. The hub of claim 1, wherein the linkage mechanism comprises a second bracket, a first gear, a second gear and two idle gears, the second bracket is fixed on the first bracket, the first shaft and the second shaft are pivoted on the second bracket, the first gear is pivoted on the second shaft and is fixed on the second bracket, the second gear is fixed on the third shaft, the two idle gears are respectively engaged with the first gear and the second gear, and the two idle gears are engaged with each other.

8. The hinge of claim 1, further comprising a first torsion member, a second torsion member and a third torsion member, wherein the first torsion member, the second torsion member and the third torsion member are respectively disposed on the first shaft, the second shaft and the third shaft.

9. An electronic device, comprising:

a hub as claimed in any one of claims 1 to 8, wherein the hub further comprises a foot rest;

a first plate member;

the second plate is provided with a groove, and a track is arranged in the groove; and

the auxiliary plate can be accommodated in the groove;

one side of the first plate is fixedly connected with the first shaft, one side of the auxiliary plate is fixedly connected with the second shaft, the other side, opposite to the auxiliary plate, is pivoted to one side of the groove, one end of the foot rest is fixedly connected with the third shaft, and the other end, opposite to the foot rest, of the foot rest is slidably connected with the track.

10. The electronic device of claim 9, wherein the hinge assembly further comprises a first bracket and a second bracket, the first bracket being fixedly connected to the first shaft, the second bracket being fixedly connected to the second shaft; the first plate is fixedly connected with the first shaft by fixedly connecting the first bearing frame, and the auxiliary plate is fixedly connected with the second shaft by fixedly connecting the second bearing frame.

Images