CN217061308U

CN217061308U - Flexible screen pivot mechanism of infolding gear connecting rod formula

Info

Publication number: CN217061308U
Application number: CN202123261392.1U
Authority: CN
Inventors: 陳威仲; 万鹏程; 董小慧
Original assignee: Kunshan Kersen Science and Technology Co Ltd
Current assignee: Kunshan Kersen Science and Technology Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-26
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a flexible screen pivot mechanism of infolding gear connecting rod formula, its pivot unit includes: the supporting seat with set up respectively in the first swinging boom of supporting seat both sides, the second swinging boom, first swinging boom, the respective one end of second swinging boom is rotationally installed on the supporting seat, its respective other end extends to the direction of keeping away from the supporting seat, still have with first swinging boom, the first connecting rod gear that the second swinging boom corresponds the setting, the second connecting rod gear, first connecting rod gear, connect through at least two intermeshing's gear drive between the respective gear end of second connecting rod gear, the gear end of first connecting rod gear and the gear ratio of the gear are 1, the gear end of second connecting rod gear and the gear ratio of the gear are less than 1. The utility model discloses on realizing that 0 ~180 fixed point expandes and carry out the basis that well supported to the flexible screen, the opening of the flexible screen equipment of being convenient for promotes user experience.

Description

Internal folding gear connecting rod type flexible screen rotating shaft mechanism

Technical Field

The utility model relates to a flexible screen pivot mechanism of infolding gear connecting rod formula belongs to electronic product technical field.

Background

With the development of science and technology, portable devices such as mobile phones, electronic paper screens and notebook computers gradually enter people's lives, great convenience is provided for work, study, communication and entertainment of people, styles of the portable devices are increasingly abundant, the use requirements of users on electronic products are increasingly high, functions of the electronic products are increasingly diversified, and many new forms of electronic products are produced, for example, the electronic devices with flexible screens: two side ends of the flexible screen are respectively connected to two parts of the electronic equipment, which can rotate relatively.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible screen pivot mechanism of infolding gear connecting rod formula, this flexible screen pivot mechanism of infolding gear connecting rod formula is realizing 0 ~180 fixed point expansion and carrying out good basis that supports to flexible screen, and the flexible screen equipment of being convenient for opens, promotes user experience.

In order to achieve the purpose, the utility model adopts the technical proposal that: an interior flexible screen pivot mechanism of gear connecting rod formula that rolls over includes: pivot unit and well door plant, 2 the pivot unit is that the axial symmetry interval sets up and passes through between its respective supporting seat well door plant is connected, the pivot unit includes: the first connecting rod gear and the second connecting rod gear are arranged corresponding to the first rotating arm and the second rotating arm, the respective gear ends of the first connecting rod gear and the second connecting rod gear are rotatably arranged on the supporting seat, and the respective connecting rod ends of the first connecting rod gear and the second connecting rod gear extend towards the direction far away from the supporting seat;

the first rotating arm and the first connecting rod gear which are positioned on the same side of the supporting seat are arranged in parallel at intervals and are connected through a first movable block, the second rotating arm and the second connecting rod gear which are positioned on the other side of the supporting seat are arranged in parallel at intervals and are connected through a second movable block, the first movable block and the second movable block are correspondingly and rotatably connected with the first rotating arm and the second rotating arm and are in sliding fit with the first connecting rod gear and the second connecting rod gear, the gear ends of the first connecting rod gear and the second connecting rod gear are in transmission connection through at least two gears which are meshed with each other, and the outer side of one end of each gear is provided with a damping module;

2 first rotating arms of the rotating shaft units are connected through a first door plate, second door plates are installed between second rotating arms of the rotating shaft units, the lower surfaces of the first door plates and the second door plates are respectively provided with 2 connecting blocks with strip-shaped holes and 2 arc-shaped sliding blocks, the strip-shaped holes which are obliquely arranged are connected with the middle parts of the corresponding first rotating arms or the corresponding second rotating arms through a stop pin, and the arc-shaped sliding blocks are in sliding fit with arc-shaped sliding grooves which are correspondingly formed in the first movable blocks or the second movable blocks;

the gear end of the first connecting rod gear is 1 in gear ratio, the gear end of the second connecting rod gear is less than 1 in gear ratio, so that when the first rotating arm and the second rotating arm which are connected through the first movable block, the second movable block, the first connecting rod gear and the second connecting rod gear are rotated by 180 degrees to a folded state from a 0-degree flattening state, the rotating angle of the first rotating arm is less than the rotating angle of the second rotating arm.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the first link gear and the second link gear are respectively mounted on the support base through a support shaft, at least two gear shafts for mounting the gears are arranged between 2 support shafts which are arranged in parallel, one end of each support shaft and one end of each gear shaft correspondingly penetrate through the gear ends of the first link gear and the second link gear and the gears and are embedded into the support base, and the other ends of the support shafts and the other ends of the gear shafts are connected through a buckle piece.

2. In the above scheme, the support shaft and the gear shaft are respectively sleeved with a spring, one end of the spring in a compressed state is in contact with the buckle piece, and the other end of the spring is in contact with the gear end or the end face of the gear of the corresponding first connecting rod gear and the second connecting rod gear, so as to form the damping module.

3. In the above scheme, the supporting seat further comprises: the supporting plate and install in the apron of backup pad top, first swinging boom, second swinging boom rotate to be installed in the backup pad, have a bellied bar lug downwards on the lower surface of apron one end, back shaft, gear shaft imbed in this bar lug respectively.

4. In the above scheme, the gear ratio between the gear end of the first link gear, the gear and the gear end of the second link gear is 5: 5: 4.

5. in the above scheme, the upper surfaces of the first door panel and the second door panel are used for contacting with the lower surface of the flexible screen.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model discloses an inward-folding gear connecting rod type flexible screen rotating shaft mechanism, which realizes the fixed-point expansion of 0-180 degrees and well supports the flexible screen, the gear ratio of the gear end of the first connecting rod gear to the gear of the first connecting rod gear is 1, the gear ratio of the gear end of the second connecting rod gear to the gear of the second connecting rod gear is less than 1, when the first rotating arm and the second rotating arm which are connected with the first connecting rod gear and the second connecting rod gear through the first movable block and the second movable block rotate 180 degrees from a 0-degree flattening state to a folding state, the rotating angle of the first rotating arm is smaller than that of the second rotating arm, by the asymmetrical arrangement of the gear teeth which are mutually meshed for transmission, when the flexible screen device adopting the rotating shaft component is in a folded state, form the dislocation step between two rotation portions of equipment, the opening of the flexible screen equipment of being convenient for promotes user experience.

Drawings

FIG. 1 is a schematic view of the whole structure of the internal-folding gear connecting rod type flexible screen rotating shaft mechanism of the present invention;

FIG. 2 is an exploded view of the internal folding gear connecting rod type flexible screen rotating shaft mechanism of the present invention;

fig. 3 is a front view of the structure of the utility model in a folded state;

fig. 4 is a front view of the present invention in the unfolded state.

In the above drawings: 1. a supporting seat; 101. a support plate; 102. a cover plate; 103. a bar-shaped bump; 2. a first rotating arm; 3. a second rotating arm; 4. a first link gear; 41. a gear end; 42. a connecting rod end; 5. a second link gear; 51. a gear end; 52. a connecting rod end; 6. a first movable block; 7. a second movable block; 8. a gear; 9. a damping module; 10. a support shaft; 11. a gear shaft; 12. buckling pieces; 13. a spring; 14. a middle door panel; 27. a first door panel; 28. a second door panel; 29. a strip-shaped hole; 30. connecting blocks; 31. an arc-shaped sliding block; 32. a stop pin; 33. an arc chute.

Detailed Description

Example 1: the utility model provides a flexible screen pivot mechanism of infolding gear connecting rod formula, includes: pivot unit and well

door plant

14, 2 the pivot unit is the axisymmetric interval and sets up and its respective supporting seat 1 between through well door plant 14 is connected, the pivot unit includes: the device comprises a supporting seat 1, a first rotating arm 2 and a second rotating arm 3 which are respectively arranged at two sides of the supporting seat 1, wherein one end of each of the first rotating arm 2 and the second rotating arm 3 is rotatably arranged on the supporting seat 1, the other end of each of the first rotating arm 2 and the second rotating arm 3 extends towards the direction far away from the supporting seat 1, the device also comprises a first connecting rod gear 4 and a second connecting rod gear 5 which are arranged corresponding to the first rotating arm 2 and the second rotating arm 3, the gear ends 41 and 51 of the first connecting rod gear 4 and the second connecting rod gear 5 are rotatably arranged on the supporting seat 1, and the connecting

rod ends

42 and 52 of the first connecting rod gear and the second connecting rod gear extend towards the direction far away from the supporting seat 1;

the first rotating arm 2 and the first connecting rod gear 4 which are positioned on the same side of the supporting seat 1 are arranged in parallel at intervals and are connected through a first movable block 6, the second rotating arm 3 and the second connecting rod gear 5 which are positioned on the other side of the supporting seat 1 are arranged in parallel at intervals and are connected through a second movable block 7, the first movable block 6 and the second movable block 7 are correspondingly and rotatably connected with the first rotating arm 2 and the second rotating arm 3 and are in sliding fit with the first connecting rod gear 4 and the second connecting rod gear 5, the

respective gear ends

41 and 51 of the first connecting rod gear 4 and the second connecting rod gear 5 are in transmission connection through at least two gears 8 which are meshed with each other, and the damping module 9 is arranged outside one end of each gear 8;

a first door panel 27 is installed between the respective first rotating arms 2 of the 2 rotating shaft units for connection, a second door panel 28 is installed between the respective second rotating arms 3 of the rotating shaft units, the respective lower surfaces of the first door panel 27 and the second door panel 28 are respectively provided with 2 connecting blocks 30 with strip-

shaped holes

29 and 2 arc-shaped sliding blocks 31, the obliquely arranged strip-shaped holes 29 are connected with the middle parts of the corresponding first rotating arms 2 or the corresponding second rotating arms 3 through stop pins 32, and the arc-shaped sliding blocks 31 are in sliding fit with arc-shaped sliding chutes 33 correspondingly arranged on the first movable blocks 6 or the second movable blocks 7;

the gear ratio of the gear end 41 of the first connecting rod gear 4 to the gear 8 is 1, the gear ratio of the gear end 51 of the second connecting rod gear 5 to the gear 8 is less than 1, so that when the first rotating arm 2 and the second rotating arm 3 which are connected with the first connecting rod gear 4 and the second connecting rod gear 5 through the first movable block 6 and the second movable block 7 rotate 180 degrees to a folded state through a 0-degree flattening state, the rotating angle of the first rotating arm 2 is less than that of the second rotating arm 3.

The first connecting rod gear 4 and the second connecting rod gear 5 are respectively installed on the supporting seat 1 through a supporting shaft 10, at least two gear shafts 11 for installing the gear 8 are arranged between 2 parallel supporting shafts 10, one ends of the supporting shafts 10 and the gear shafts 11 correspondingly penetrate through the

gear ends

41 and 51 of the first connecting rod gear 4 and the second connecting rod gear 5 and the gear 8 and are embedded into the supporting seat 1, and the other ends are connected through a buckle piece 12, so that the front and back movement of the rotating shaft when the rotating shaft is assembled on a finished product can be prevented.

The supporting shaft 10 and the gear shaft 11 are respectively sleeved with a spring 13, one end of the spring 13 in a compressed state is in contact with the buckle piece 12, and the other end of the spring 13 is in contact with the

gear ends

41 and 51 of the corresponding first connecting rod gear 4 and the second connecting rod gear 5 or the end face of the gear 8, so that the damping module 9 is formed, a screen tightening mechanism is added, and meanwhile, the screen is always in a tightened state, so that the rotating shaft has good use experience.

The gear ratio between the gear end 41 of the first link gear 4, the gear 8, and the gear end 51 of the second link gear 5 is 5: 5: 4; the upper surfaces of the first and

second door panels

27 and 28 are adapted to contact the lower surface of the flexible screen.

Example 2: the utility model provides a flexible screen pivot mechanism of infolding gear connecting rod formula, includes: pivot unit and well door plant 14, 2 the pivot unit is the axisymmetric interval and sets up and its respective supporting seat 1 between through well door plant 14 is connected, the pivot unit includes: the supporting seat comprises a supporting seat 1, a first rotating arm 2 and a second rotating arm 3 which are respectively arranged at two sides of the supporting seat 1, wherein one end of each of the first rotating arm 2 and the second rotating arm 3 is rotatably arranged on the supporting seat 1, the other end of each of the first rotating arm 2 and the second rotating arm 3 extends towards the direction far away from the supporting seat 1, the supporting seat is also provided with a first connecting rod gear 4 and a second connecting rod gear 5 which are correspondingly arranged with the first rotating arm 2 and the second rotating arm 3, the gear ends 41 and 51 of each of the first connecting rod gear 4 and the second connecting rod gear 5 are rotatably arranged on the supporting seat 1, and the connecting rod ends 42 and 52 of each of the first connecting rod gear 4 and the second connecting rod gear 5 extend towards the direction far away from the supporting seat 1;

the first rotating arm 2 and the first connecting rod gear 4 which are positioned on the same side of the supporting seat 1 are arranged in parallel at intervals and are connected through a first movable block 6, the second rotating arm 3 and the second connecting rod gear 5 which are positioned on the other side of the supporting seat 1 are arranged in parallel at intervals and are connected through a second movable block 7, the first movable block 6 and the second movable block 7 are correspondingly and rotatably connected with the first rotating arm 2 and the second rotating arm 3 and are in sliding fit with the first connecting rod gear 4 and the second connecting rod gear 5, the respective gear ends 41 and 51 of the first connecting rod gear 4 and the second connecting rod gear 5 are in transmission connection through at least two gears 8 which are meshed with each other, and the damping module 9 is arranged outside one end of each gear 8;

a first door panel 27 is installed between the respective first rotating arms 2 of the 2 rotating shaft units for connection, a second door panel 28 is installed between the respective second rotating arms 3 of the rotating shaft units, the respective lower surfaces of the first door panel 27 and the second door panel 28 are respectively provided with 2 connecting blocks 30 with strip-shaped

holes

29 and 2 arc-shaped sliding blocks 31, the obliquely arranged strip-shaped holes 29 are connected with the middle parts of the corresponding first rotating arms 2 or second rotating arms 3 through a stop pin 32, and the arc-shaped sliding blocks 31 are in sliding fit with arc-shaped sliding grooves 33 correspondingly formed in the first movable blocks 6 or the second movable blocks 7;

the gear ratio of the gear end 41 of the first connecting rod gear 4 to the gear 8 is 1, the gear ratio of the gear end 51 of the second connecting rod gear 5 to the gear 8 is less than 1, so that when the first rotating arm 2 and the second rotating arm 3 are rotated by 180 degrees to a folded state from a 0-degree flattening state through the first movable block 6, the second movable block 7, the first connecting rod gear 4 and the second connecting rod gear 5, the sum of the rotating angles of the first rotating arm and the second rotating arm is 180 degrees, and the rotating angle of the first rotating arm is less than that of the second rotating arm, for example, the first rotating arm 2 rotates 80 degrees, the second rotating arm 3 rotates 100 degrees or the first rotating arm 2 rotates 60 degrees, and the second rotating arm 3 rotates 120 degrees.

The first connecting rod gear 4 and the second connecting rod gear 5 are respectively installed on the supporting seat 1 through a supporting shaft 10, at least two gear shafts 11 for installing the gear 8 are arranged between 2 parallel supporting shafts 10, one ends of the supporting shafts 10 and the gear shafts 11 correspondingly penetrate through the gear ends 41 and 51 of the first connecting rod gear 4 and the second connecting rod gear 5 and the gear 8 and are embedded into the supporting seat 1, and the other ends are connected through a buckle piece 12, so that the front and back movement of the rotating shaft when the rotating shaft is assembled on a finished product can be prevented.

The support base 1 further comprises: the first rotating arm 2 and the second rotating arm 3 are rotatably mounted on the supporting plate 101, a downward-protruding bar-shaped protrusion 103 is provided on the lower surface of one end of the cover plate 102, and the supporting shaft 10 and the gear shaft 11 are respectively embedded in the bar-shaped protrusion 103.

The gear ratio between the gear end 41 of the first link gear 4, the gear 8, and the gear end 51 of the second link gear 5 is 5: 5: 4.

when the inward folding gear connecting rod type flexible screen rotating shaft mechanism is adopted, a first rotating arm and a first connecting rod gear which are positioned on the same side of a supporting seat are arranged in parallel at intervals and are connected through a first movable block, a second rotating arm and a second connecting rod gear which are positioned on the other side of the supporting seat are arranged in parallel at intervals and are connected through a second movable block, the first movable block and the second movable block are correspondingly and rotatably connected with the first rotating arm and the second rotating arm and are in sliding fit with the first connecting rod gear and the second connecting rod gear, on the basis of realizing 0-180-degree fixed-point unfolding and well supporting a flexible screen, the gear ratio of the gear end of the first connecting rod gear to the gear of the first connecting rod gear is 1, and the gear ratio of the gear end of the second connecting rod gear to the gear of the second connecting rod gear is less than 1, so that when the first rotating arm, the second rotating arm, the first connecting rod gear and the second connecting rod gear are connected through the first movable block, the second movable block, When rotating 180 to fold condition by 0 exhibition flat state between the second swinging boom, first swinging boom pivoted angle is less than second swinging boom pivoted angle, through the asymmetric setting to the driven gear tooth number of intermeshing, can be when the flexible screen equipment that adopts this patent pivot subassembly is in fold condition, forms the dislocation step between two rotation portions of equipment, the opening of the flexible screen equipment of being convenient for promotes user experience.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a flexible screen pivot mechanism of infolding gear connecting rod formula, includes: pivot unit and well door plant (14), 2 the pivot unit is axisymmetric interval setting and passes through between its respective supporting seat (1) well door plant (14) connect its characterized in that: the rotation shaft unit includes: the supporting seat comprises a supporting seat (1), a first rotating arm (2) and a second rotating arm (3) which are respectively arranged on two sides of the supporting seat (1), wherein one end of each of the first rotating arm (2) and the second rotating arm (3) is rotatably arranged on the supporting seat (1), the other end of each of the first rotating arm (2) and the second rotating arm (3) extends towards the direction far away from the supporting seat (1), the supporting seat further comprises a first connecting rod gear (4) and a second connecting rod gear (5) which are correspondingly arranged with the first rotating arm (2) and the second rotating arm (3), gear ends (41 and 51) of each of the first connecting rod gear (4) and the second connecting rod gear (5) are rotatably arranged on the supporting seat (1), and connecting rod ends (42 and 52) of each of the first connecting rod gear and the second connecting rod gear (51) extend towards the direction far away from the supporting seat (1);

the device comprises a support seat (1), a first rotating arm (2) and a second rotating arm (3), wherein the first rotating arm (2) and the first connecting rod gear (4) are arranged at the same side of the support seat (1) in parallel at intervals and are connected through a first movable block (6), the second rotating arm (3) and the second connecting rod gear (5) are arranged at the other side of the support seat (1) in parallel at intervals and are connected through a second movable block (7), the first movable block (6) and the second movable block (7) are correspondingly and rotatably connected with the first rotating arm (2) and the second rotating arm (3) and are in sliding fit with the first connecting rod gear (4) and the second connecting rod gear (5), the gear ends (41 and 51) of the first connecting rod gear (4) and the second connecting rod gear (5) are in transmission connection through at least two gears (8) which are meshed with each other, and a damping module (9) is arranged outside one end of each gear (8);

a first door plate (27) is installed between the respective first rotating arms (2) of the 2 rotating shaft units for connection, a second door plate (28) is installed between the respective second rotating arms (3), the respective lower surfaces of the first door plate (27) and the second door plate (28) are respectively provided with 2 connecting blocks (30) provided with strip-shaped holes (29) and 2 arc-shaped sliding blocks (31), the obliquely arranged strip-shaped holes (29) are connected with the middle parts of the corresponding first rotating arms (2) or second rotating arms (3) through a stop pin (32), and the arc-shaped sliding blocks (31) are in sliding fit with arc-shaped sliding grooves (33) correspondingly arranged on the first movable blocks (6) or second movable blocks (7);

the gear ratio of gear end (41) and gear (8) of first connecting rod gear (4) is 1, the gear ratio of gear end (51) and gear (8) of second connecting rod gear (5) is less than 1 for when rotating 180 to fold condition by 0 flat state of exhibition between first swinging boom (2), second swinging boom (3) through first movable block (6), second movable block (7) and first connecting rod gear (4), second connecting rod gear (5) is connected, first swinging boom (2) pivoted angle is less than second swinging boom (3) pivoted angle.

2. The internal folding gear link type flexible screen rotating shaft mechanism according to claim 1, characterized in that: first connecting rod gear (4), second connecting rod gear (5) are respectively installed on supporting seat (1) through a supporting shaft (10), 2 of parallel arrangement be provided with at least two gear shafts (11) that are used for installing gear (8) between supporting shaft (10), support shaft (10), gear shaft (11) respective one end correspondingly pass gear end (41, 51) and gear (8) and embedding supporting seat (1) of first connecting rod gear (4), second connecting rod gear (5) in, connect through a cramp (12) between its respective other end.

3. The internal folding gear link type flexible screen rotating shaft mechanism according to claim 2, characterized in that: the supporting shaft (10) and the gear shaft (11) are respectively sleeved with a spring (13), one end of the spring (13) in a compressed state is in contact with the buckle piece (12), and the other end of the spring is in contact with the gear ends (41, 51) or the end faces of the gears (8) of the corresponding first connecting rod gear (4) and the second connecting rod gear (5), so that the damping module (9) is formed.

4. The internal folding gear link type flexible screen rotating shaft mechanism according to claim 2, characterized in that: the support seat (1) further comprises: the supporting plate comprises a supporting plate (101) and a cover plate (102) arranged above the supporting plate (101), wherein the first rotating arm (2) and the second rotating arm (3) are rotatably arranged on the supporting plate (101), a downward convex strip-shaped convex block (103) is arranged on the lower surface of one end of the cover plate (102), and the supporting shaft (10) and the gear shaft (11) are respectively embedded into the strip-shaped convex block (103).

5. The internal folding gear link type flexible screen rotating shaft mechanism according to claim 1, characterized in that: the gear ratio among the gear end (41) of the first link gear (4), the gear (8) and the gear end (51) of the second link gear (5) is 5: 5: 4.

6. the internal folding gear link type flexible screen rotating shaft mechanism according to claim 1, characterized in that: the upper surfaces of the first door panel (27) and the second door panel (28) are used for being in contact with the lower surface of the flexible screen.