CN112727906B

CN112727906B - Display device and hinge mechanism thereof

Info

Publication number: CN112727906B
Application number: CN201911036442.0A
Authority: CN
Inventors: 林君翰; 戴伟翰; 黎禹婕; 堀越正太
Original assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Current assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2024-04-26
Anticipated expiration: 2039-10-29
Also published as: CN112727906A

Abstract

A display device comprises two bodies, a hinge mechanism and a flexible screen. The hinge mechanism comprises a plurality of linkage units. Each linkage unit comprises a base rod and two rotating member groups. The rotating member sets are symmetrically arranged on the base rod and are provided with friction connecting plates, the friction connecting plates are provided with pressing parts and first plate body parts, and the pressing parts are provided with first inclined sections connected to the first plate body parts and second inclined sections extending outwards from the first inclined sections. The rotating member set is pivotable relative to the base shaft between a deployed position and a stowed position. When the friction connecting plate is in the unfolding position, the first inclined sections of the friction connecting plate are respectively pressed against the second plate body parts of the torsion connecting plates of the rotating member groups, the second inclined sections are not overlapped with the second plate body parts, and the second inclined sections are gradually overlapped and are pressed against the second plate body parts by pivoting the rotating member groups from the unfolding position to the folding position, so that the torsion value is continuously and stably increased.

Description

Display device and hinge mechanism thereof

Technical Field

The present invention relates to a display device, and more particularly, to a display device and a hinge mechanism thereof.

Background

Hinge mechanisms are commonly used in consumer electronics such as smartphones, tablet computers, notebook computers, etc., to enable two components (e.g., the screen and keyboard of a notebook computer, and the support stand and screen of a tablet computer) to pivot relative to each other, or even to enable the screen of a tablet computer or smartphone itself to fold. However, in the pivoting process, the existing hinge mechanism sometimes has discontinuous torsion, which results in insufficient and smooth pivoting feeling, or the electronic device has completed folding, but the two components are not completely fixed and loose because of insufficient torsion in the folded state. Accordingly, there is room for improvement in the existing hinge mechanisms.

Disclosure of Invention

It is therefore an object of the present invention to provide a hinge mechanism in which the torque force value steadily increases or steadily decreases during pivoting.

Thus, in some embodiments, the hinge mechanism of the present invention includes a plurality of interlocking units arranged closely in the inner and outer directions. Each linkage unit comprises a base rod and two rotating member groups. The base rod is provided with two integrally connected bearing sections, each bearing section is provided with a central joint part and an end pin joint part which are positioned at the left end and the right end, and the central joint parts of the bearing sections are integrally connected with each other. The rotating piece groups are symmetrically arranged on the bearing section in a left-right mode and are pivoted on the end pivoting part and the central connecting part. Each rotating member set is provided with a synchronous connecting rod, a friction connecting plate and a torsion connecting plate. The synchronous connecting rod is provided with a toothed end part and a linkage end part which are positioned at the opposite ends, and the toothed end part is pivoted with the corresponding central connecting part. The friction connecting plate is provided with a rotating end part and a movable end part which are positioned at opposite ends, a first plate body part connected between the rotating end part and the movable end part, and a pressing part which extends outwards from one side of the first plate body part along the inner and outer direction in an inclined manner and is not coplanar with the first plate body part. The rotating end part is pivoted with the corresponding end pivoting part. The pressing part is provided with a first inclined section connected with the first plate body part and a second inclined section extending outwards from the first inclined section. The torsion connecting plate is arranged on the opposite outer sides of the friction connecting plate and the synchronous connecting rod, and is provided with a second plate body part and a pivoting end part connected with one end of the second plate body part, the second plate body part is pivoted with the movable end part of the friction connecting plate, and the pivoting end part is pivoted with the linkage end part of the synchronous connecting rod. The toothed end parts of the synchronous connecting rods of the rotating member group are meshed with each other, so that the torsion connecting plates of the rotating member group can synchronously pivot, the rotating member group can pivot relative to the base rod between an unfolding position and a folding position, in the unfolding position, the torsion connecting plates extend along the left and right directions, the first inclined sections of the pressing parts of the friction connecting plates press against the second plate body parts of the torsion connecting plates to generate torsion values, the second inclined sections are not overlapped with the second plate body parts in the inner and outer directions, the second inclined sections gradually overlap and press against the second plate body parts through the pivoting member group from the unfolding position to the folding position, so that the torsion values continuously and stably increase, in the folding position, the torsion connecting plates extend along the up and down directions and are spaced in the left and right directions, and the torsion connecting plates and the base rod jointly define bending space.

In some embodiments, each torsion connecting plate further has a side protrusion extending from one side of the second plate body, the side protrusion is not coplanar with the second plate body at a terminal end, and the side protrusions are respectively pressed against the first plate body of the friction connecting rod by the rotating member set at the folding position.

In some embodiments, each bearing section further has an arc-shaped supporting portion located between the central connection portion and the end pivoting portion, the arc-shaped supporting portion has an upper side edge with an arc-shaped concave shape, and the side protrusions respectively move along the upper side edge during the pivoting process of the torsion connecting plate.

In some embodiments, the hinge mechanism is suitable for being disposed between two machine bodies, and further comprises two connection seats, the connection seats are suitable for being respectively disposed on the machine bodies and correspondingly connected to the torsion connection plates of the linkage unit, each connection seat defines a plurality of butt joint grooves which are arranged in the inner and outer directions and extend in the upper and lower directions, and a plurality of inserting grooves which are arranged in the inner and outer directions and extend downwards along the upper and lower directions, each torsion connection plate further comprises a butt joint plate portion connected to the other end of the second plate body portion, and a plug joint plate portion extending downwards from the butt joint plate portion, the butt joint plate portions of the torsion connection plates are used for being in butt joint with the butt joint grooves, and the plug joint plate portions of the torsion connection plates are used for being inserted into the inserting grooves.

In some embodiments, each torsion connecting plate further has a positioning slot between the second plate body and the butt plate and recessed upward from the lower edge of the torsion connecting plate, and the end pivot portion of the base rod is accommodated in the positioning slot of the torsion connecting plate in a shape-matched manner by the rotating member set in the unfolding position.

In some embodiments, the hinge mechanism further includes a dust-proof seat disposed on the linkage unit, where the dust-proof seat includes a bottom cover portion disposed on a bottom side of the base rod, and a side cover portion bent from one side of the bottom cover portion and extending to cover an outer side of the rotating member set.

Another object of the present invention is to provide a display device using the hinge mechanism.

Thus, in some embodiments, the display device of the present invention includes two bodies, two hinge mechanisms, and a flexible screen. Each hinge mechanism further comprises two connecting seats, wherein the connecting seats are respectively arranged on the machine body and are respectively connected with the torsion connecting plates of the linkage units. The flexible screen is arranged on the machine body. The flexible screen is bent through the torsion connecting plate at the folding position, and the bent part of the flexible screen is accommodated in the accommodating space separated by the machine body.

In some embodiments, each body includes a base wall and two first side walls extending upwards from two sides of the base wall, the base wall and the first side walls together define an installation space for the flexible screen to be arranged, one end of each first side wall is concave to form an installation groove, the installation grooves of the first side walls of the body correspond to each other in the left-right direction, and each hinge mechanism is arranged in the corresponding installation groove in the left-right direction.

In some embodiments, each mounting groove has a first groove portion and a second groove portion, each body has two positioning posts respectively disposed in the second groove portion, each connecting seat has a butt joint block and a positioning plate connected to the butt joint block, the butt joint block is disposed in the first groove portion, and has a plurality of butt joint grooves arranged in the inner and outer directions and extending in the up and down directions, and a plurality of inserting grooves arranged in the inner and outer directions and extending in the up and down directions, each torsion connecting plate further has a butt joint plate portion connected to the other end of the second plate body portion and used for being in butt joint with the butt joint grooves, and a plug joint plate portion extending downwards from the butt joint plate portion and used for being inserted into the inserting grooves, and the positioning plate is disposed in the second groove portion and has a positioning hole for the positioning posts to penetrate.

In some embodiments, each first side wall further has a wall body, and a step portion located at an inner side opposite to the wall body and having a height lower than that of the wall body, each body further has a plurality of receiving posts disposed on the base wall, the bottom surface of the flexible screen abuts against the step portion of the first side wall and the receiving posts, and the top surface of the flexible screen is level with the wall body of the first side wall.

The invention has the beneficial effects that: the two rotating piece groups which are symmetrically arranged on the left and right of each linkage unit are mutually meshed through the toothed end parts of the synchronous connecting rods, so that the two torsion connecting plates synchronously rotate during pivoting, the flexible screen is prevented from being damaged by unequal external force pulling, the two torsion connecting plates and the base rod are pivoted to the folding position, bending space is jointly defined by the torsion connecting plates and the base rod, and meanwhile, the two machine bodies are linked to form an accommodating space at intervals, so that the bending part of the flexible screen can be correspondingly accommodated; in addition, when each torsion link plate is in the unfolding position, the first inclined section of the pressing part of each friction link plate is pressed against the second plate body part of the corresponding torsion link plate, so that the torsion link plate generates a torsion value, and in the process of pivoting the torsion link plate from the unfolding position to the folding position, the second inclined section is gradually overlapped and pressed against the second plate body part, so that the torsion value is continuously and stably increased, and the phenomenon of discontinuous torsion when the existing hinge mechanism pivots is overcome.

Drawings

FIG. 1 is a perspective view of one embodiment of a display device of the present invention, illustrating the display device in a flattened position;

FIG. 2 is an exploded perspective view of the embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a perspective view illustrating a hinge mechanism of the embodiment;

FIG. 5 is an exploded perspective view of the hinge mechanism;

FIG. 6 is a perspective view illustrating a connection base of the hinge mechanism;

FIG. 7 is a perspective view illustrating a rotation module of the hinge mechanism;

FIG. 8 is an exploded perspective view of the rotary module;

FIG. 9 is a perspective view illustrating a linkage unit of the rotary module;

FIG. 10 is a front view illustrating a base lever of a rotating member set of the linkage unit;

FIG. 11 is a front view illustrating a friction link plate of the rotor set;

FIG. 12 is a side view illustrating a pressing portion of the friction link plate not being coplanar with a first plate body portion of the friction link plate;

FIG. 13 is a front view illustrating a torsion bar of the rotor set;

FIG. 14 is a side view illustrating a side lobe of the torsion bar not being coplanar with a second body portion of the torsion bar;

FIG. 15 is a schematic view of the linkage unit with two rotating member sets in a deployed position;

FIG. 16 is a schematic view of the display device during pivoting;

FIG. 17 is a schematic view of the rotor set during pivoting;

FIG. 18 is a schematic view of the display device pivoted to a folded position;

FIG. 19 is a schematic view of the rotor assembly pivoted to a retracted position; and

Fig. 20 is a partial perspective view illustrating that when the display device is in the folded position, two bodies of the display device are separated by an accommodating space, so that a bent portion of a flexible screen of the display device can be correspondingly accommodated.

Detailed Description

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

Referring to fig. 1, the display device 100 of the present invention is an foldable tablet computer in the present embodiment. The display device 100 comprises two main bodies 1, a flexible screen 2 and two hinge mechanisms 3.

Referring to fig. 2, each body 1 includes a base wall 11, two first side walls 12, a second side wall 13, two positioning posts 14, and a plurality of receiving posts 15. In this embodiment, the base wall 11 is rectangular. The first side walls 12 extend upward from both short sides of the base wall 11, respectively. The second side wall 13 extends upward from one long side of the base wall 11 and is connected to the first side wall 12. The base wall 11, the first side wall 12 and the second side wall 13 together define an installation space 16. When assembled, the fuselage 1 is each closed with its other long side and connected by means of the hinge mechanism 3.

In detail, each first sidewall 12 has a wall body 121 and a step 122 located at the opposite inner side of the wall body 121 and having a lower height than the wall body 121. The wall body 121 is recessed from an end remote from the second side wall 13 to form a mounting groove 121a. Referring to fig. 3, each mounting groove 121a has a first groove 1211 and a second groove 1212 closer to the second sidewall 13 than the first groove 1211. The positioning posts 14 are respectively disposed in the second groove 1212. The mounting grooves 121a of the first side wall 12 of the body 1 correspond to each other in a left-right direction D1, and each hinge mechanism 3 is disposed in the corresponding mounting groove 121a in the left-right direction D1 and is penetrated by the positioning column 14 to be positioned in the mounting groove 121a. The receiving post 15 is disposed upright on the top surface of the base wall 11. The flexible screen 2 is disposed in the installation space 16 of the main body 1, and the bottom surface of the flexible screen 2 abuts against the step portion 122 of the first side wall 12 and the receiving post 15, so that the flexible screen 2 and the receiving post 15 are mutually fixed by a plurality of locking members (not shown). Four sides of the flexible screen 2 are abutted outwards against the wall body 121 and the second side wall 13. The top surface of the flexible screen 2 is level with the top surface of the wall body 121 of the first side wall 12.

Referring to fig. 3 to 5, each hinge mechanism 3 includes two connection seats 4, and a rotation module 5. The connection seats 4 are respectively disposed in the corresponding mounting grooves 121a in the left-right direction D1, and are correspondingly connected to the left and right ends of the rotation module 5. Referring to fig. 6, each of the connection seats 4 is integrally formed and has a pair of connection blocks 41 and a positioning plate 42. The docking block 41 is docked to the rotation module 5 and mounted to the first groove 1211. Further, the docking block 41 has a base portion 411, two side plate portions 412 extending upward from opposite sides of the base portion 411, respectively, and a baffle portion 413 connected between the side plate portions 412. The base portion 411 defines a plurality of insertion slots 411a aligned in an inner-outer direction D2 and extending downward in an up-down direction D3. In this embodiment, the base portion 411 has a plurality of first limiting posts 411b, the inserting slots 411a are formed by spacing the first limiting posts 411b disposed in an elongated groove of the base portion 411, and the inserting slots 411a are mutually communicated in this embodiment. In a variant embodiment, the plugging slots 411a may be formed on the base portion 411 independently and not in communication with each other, which is not limited to the present embodiment. Each side plate portion 412 has two through holes 412a. The baffle portion 413 defines a plurality of abutting grooves 413a arranged in the inner and outer direction D2 and extending in the up and down direction D3. In this embodiment, the baffle portion 413 has a plurality of second stopper posts 413b, and the abutting grooves 413a are separated by the second stopper posts 413b arranged at intervals. The positioning plate 42 is integrally connected to the docking block 41 and disposed in the second groove 1212. The positioning plate 42 has a positioning hole 421 and a locking hole 422, wherein the positioning hole 421 is used for the positioning post 14 to be inserted and fixed correspondingly, and a locking member (not shown) such as a screw is inserted through the locking hole 422 to be locked to the body 1.

Referring to fig. 7 and 8, the rotation module 5 includes a plurality of linkage units 6 and a plurality of pins 7. The linkage units 6 are arranged in close proximity in the inner and outer direction D2 and are connected in series and fixed by the bolts 7. Referring to fig. 9 and 10, each linkage unit 6 includes a base rod 61 and two rotating member sets 62. The base rod 61 is elongate and has two bearing segments 611 which are symmetrically arranged and integrally connected. Each carrying section 611 has an end pivoting portion 611a and a middle pivoting portion 611b at opposite left and right ends, and an arc-shaped supporting portion 611c between the end pivoting portion 611a and the middle pivoting portion 611 b. The carrier segments 611 are integrally connected to each other with the hub connection 611 b. Each arc-shaped supporting portion 611c has an upper side edge 6111 recessed in an arc shape. The upper skirt 6111 defines a undercut space 6112.

Referring to fig. 8 to 10, the rotating member sets 62 are symmetrically disposed on the supporting section 611 and pivotally connected to the end pivot portion 611a and the central pivot portion 611b through the pins 7. Specifically, each rotating member 62 has a synchronization link 621, a friction link 622, and a torsion link 623. The synchronizing link 621 has a toothed end 621a and a link end 621b at opposite ends. The toothed end portions 621a are pivotally connected to the corresponding pivot portion 611b, and the toothed end portions 621a of the synchronizing links 621 of the two rotating member sets 62 are engaged with each other. The synchronization link 621 is operable to pivot about the toothed end 621 a.

Referring to fig. 11 and 12, the friction connecting plate 622 is disposed at the end pivot 611a of the base rod 61, and has a rotating end 622a and a movable end 622b at opposite ends, a first plate body 622c connected between the rotating end 622a and the movable end 622b, and a pressing portion 622D extending obliquely outward (i.e. toward the direction approaching the torsion connecting plate 623) from one side of the first plate body 622c along the inner and outer direction D2 and not coplanar with the first plate body 622c. The rotating end 622a is pivotally connected to the corresponding end pivot 611a. The pressing portion 622d has a first inclined section 6221 connected to the first plate body 622c, and a second inclined section 6222 extending outwardly from the first inclined section 6221. The second sloped section 6222 is integrally connected to the first sloped section 6221 and has the same slope as the first sloped section 6221. The second inclined section 6222 is farther from the first plate body 622c than the first inclined section 6221 in the inward-outward direction D2. The friction link 622 is operable to pivot about the rotational end 622 a.

Referring to fig. 13, the torsion bar 623 is disposed on an opposite outer side of the friction bar 622 and the synchronization link 621. Specifically, the torsion connecting plate 623 has a second plate body 623a, a pivot end 623b connected to one end of the second plate body 623a, an abutting plate 623c connected to the other end of the second plate body 623a, a plug plate 623d extending downward from the abutting plate 623c, a side projection 623e extending from the lower side of the second plate body 623a, and a positioning groove 623f between the second plate body 623a and the abutting plate 623c and recessed upward from the lower edge of the torsion connecting plate 623. The second plate body 623a is pivotally connected to the movable end 622b of the friction plate 622, and has a notch 6231 located on the upper side. The pivot end 623b is pivotally connected to the link end 621b of the synchronization link 621. The abutment plate portion 623c has two perforations 6233. Referring to fig. 6, the abutting plate portion 623c of the torsion connecting plate 623 of the linking unit 6 is configured to abut against and be welded to the corresponding abutting slot 413a in the up-down direction D3, and is configured to be inserted downward in the up-down direction D3 and be welded to the corresponding inserting slot 411a by the pin 7 passing through the through hole 412a and the through hole 6233 aligned with each other.

Referring to fig. 13 and 14, the side protrusion 623e extends downward from the lower side of the second plate body 623a for a small length, and then bends and extends toward the pivoting end 623 b. In this embodiment, the profile of the side protrusion 623e corresponds to the profile of the pressing portion 622D of the friction plate 622 (see fig. 11), and has a tail portion 6232 at the end, and the tail portion 6232 extends slightly inward (i.e., toward the friction plate 622) along the inner and outer directions D2, but is not coplanar with the second plate body 623 a. Referring to fig. 9, the torsion link plate 623 is operable to pivot along the upper side edge 6111 of the bearing segment 611 and to link the synchronization link 621 to rotate with the friction link 622 in a direction opposite to the pivoting direction of the torsion link plate 623, and the torsion link plate 623 of the rotation element group 62 is synchronously pivoted when pivoting due to the toothed end 621a of the synchronization link 621 of the rotation element group 62 engaging with each other.

Referring to fig. 1, 15, 18 and 19, the display device 100 is pivotable between a flattened position as shown in fig. 1 and a folded position as shown in fig. 18, and the rotating member group 62 of each linkage unit 6 of each hinge mechanism 3 is correspondingly positioned in an unfolded position as shown in fig. 15 by the display device 100 being positioned in the flattened position, and the rotating member group 62 is correspondingly positioned in a folded position as shown in fig. 19 by the display device 100 being positioned in the folded position.

The structural relationship between the hinge mechanism 3 and the display device 100 when pivoted to different positions and the operation process when pivoted will be described in detail with reference to the accompanying drawings. Referring to fig. 15, when the rotating member 62 is in the extended position, the end pivot 611a of the base rod 61 is accommodated in the positioning groove 623f of the torsion connecting plate 623 in a shape-fit manner. The length direction of the torsion connecting plate 623 extends along the left-right direction D1, and in this embodiment, the torsion connecting plate 623 extends horizontally, the pivot ends 623b are close to each other, the upper sides of the torsion connecting plate 623 are horizontally aligned, and the side protrusions 623e are respectively located in the side concave space 6112 of the carrying segment 611 in a shape-matching manner. The synchronizing links 621 are disposed immediately adjacent to each other and upright on the side of the base rod 61. The first inclined section 6221 of the pressing portion 622D of the friction plate 622 presses outward against the second plate body portion 623a of the torsion plate 623 along the inner-outer direction D2, so that the torsion plate 623 generates a torsion force, and the body 1 is positioned by the torsion force and is not easy to loosen when the display device 100 is in the flattened position. The second inclined sections 6222 of the pressing portion 622D respectively correspond to the notches 6231 of the torsion connecting plate 623, and do not overlap the second plate body portion 623a in the inner-outer direction D2.

Referring to fig. 16 and 17, by moving the display device 100 from the flattened position to the folded position, the body 1 is pivoted in opposite directions, the torsion link plate 623 is driven by the body 1 to be respectively displaced along the upper side edges 6111 of the base rods 61, and simultaneously the torsion link plate 623 drives the synchronization link 621 to pivot with the friction link plate 622. The synchronization link 621 is driven by the pivoting end portion 623b of the torsion link plate 623 to pivot reversely about the respective toothed end portions 621a, so that the interlocking end portions 621b are moved away from each other and toward the undercut space 6112, respectively. The friction link plate 622 is driven by the second plate body portion 623a of the torsion link plate 623, and is pivoted in opposite directions about the respective rotation end portions 622a, so that the movable end portions 622b are moved obliquely upward of the interlocking end portions 621b, respectively. The synchronous link 621 and the friction link 622 simultaneously drive the torsion link 623, so that the side protrusion 623e of the torsion link 623 is brought out of the undercut space 6112 obliquely upward. The second inclined section 6222 of the pressing portion 622d gradually overlaps the second plate body portion 623a. It should be noted that the second inclined section 6222 is gradually overlapped in the inner and outer direction D2 to press against the second plate body portion 623a, so that the torque force value is continuously and stably increased. That is, the torsion value sensed by the user is smoothly increased and uninterrupted during the pivoting of the body 1 of the display device 100. In addition, the tail portion 6232 of the side protrusion 623e also gradually overlaps the first plate body 622c, thereby increasing the torque value.

Referring to fig. 18 to 20, the flexible screen 2 is bent by rotating the display device 100 to the folded position. The rotating member 62 rotates to the folding position, the extension direction of the torsion connecting plate 623 extends upward along the up-down direction D3, and the torsion connecting plate 623 extends vertically in the present embodiment. The pivot end portions 623b are screwed into the undercut spaces 6112, respectively, to be away from each other, and space the torsion link plates 623 apart in the left-right direction D1. The torsion bar 623 and the base bar 61 together define a bending space 63. By means of the torsion connecting plate 623 rotating to the folding position, the torsion connecting plate 623 and the base bar 61 together define a bending space 63, so that the machine body 1 is separated by an accommodating space 17, and the bending position of the flexible screen 2 can be retracted into and accommodated in the accommodating space 17. With reference to fig. 19, the pressing portion 622d of the friction plate 622 completely overlaps and presses against the second plate body portion 623a of the torsion plate 623, and the side protrusion 623e of the torsion plate 623 also completely overlaps and presses against the first plate body portion 622c and the pressing portion 622d of the friction plate 622, so that the torsion value of the display device 100 when the cover is closed is increased, and the machine body 1 is not easy to loosen.

Referring to fig. 4 and 5, each hinge mechanism 3 further includes a dust-proof seat 8, and two cover plates 9. The dust-proof seat 8 is disposed on the linkage unit 6, and has a bottom cover portion 81 disposed on the bottom side of the base rod 61, and a side cover portion 82 bent and extended from the outer side of the bottom cover portion 81 and covering the outer side of the rotating member set 62. By means of the dust-proof seat 8, the hinge mechanism 3 is not exposed out of the body 1 during the pivoting process of the display device 100, so that the hinge mechanism 3 is prevented from being polluted by dust. The cover plate 9 is respectively provided with the side plate portions 412 of the connecting seat 4 and presses against the abutting plate portions 623c of the torsion connecting plate 623, so that the hinge mechanism 3 can be further prevented from being polluted by dust, except for assisting in firmly arranging the torsion connecting plate 623 on the connecting seat 4.

In summary, in the display device 100 of the present invention, the two left and right symmetrically disposed rotating element groups 62 of each linkage unit 6 are engaged with each other by the toothed end portions 621a of the synchronous connecting rods 621, so that the two torsion connecting plates 623 rotate synchronously during pivoting to avoid the flexible screen 2 from being damaged by being pulled by unequal external force, and the two torsion connecting plates 623 pivot to the folding position, the torsion connecting plates 623 and the base rod 61 together define a bending space 63, and simultaneously link the two machine bodies 1 to form an accommodating space 17 for corresponding accommodating the bending position of the flexible screen 2; in addition, when each torsion connecting plate 623 is in the unfolded position, the first inclined section 6221 of the pressing portion 622d of each friction connecting plate 622 is pressed against the second plate body portion 623a of the corresponding torsion connecting plate 623, so that the torsion connecting plate 623 generates a torsion value, and in the process of pivoting the torsion connecting plate 623 from the unfolded position to the folded position, the second inclined section 6222 is gradually overlapped and pressed against the second plate body portion 623a, so that the torsion value is continuously and stably increased, and the phenomenon of discontinuous torsion when the conventional hinge mechanism 3 pivots is overcome, so that the purpose of the invention can be truly achieved.

However, the foregoing is merely illustrative of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. A hinge mechanism, characterized in that: the hinge mechanism comprises a rotating module, wherein the rotating module comprises a plurality of linkage units:

the multiple linkage units are arranged in close proximity in the inner and outer directions, each linkage unit comprises

The base rod is provided with two integrally connected bearing sections, each bearing section is provided with a central joint part and an end pin joint part which are positioned at the left end and the right end, and the central joint parts of the bearing sections are integrally connected with each other; and

Two rotating member sets which are symmetrically arranged on the bearing section and pivoted on the end pivoting part and the central pivoting part, each rotating member set is provided with a synchronous connecting rod and a toothed end part and a linkage end part which are positioned at the opposite ends, the toothed end parts are pivoted on the corresponding central pivoting parts,

The friction connecting plate is provided with a rotating end part and a movable end part which are positioned at opposite ends, a first plate body part connected between the rotating end part and the movable end part, and a pressing part which extends outwards from one side of the first plate body part along the inner and outer directions and is not coplanar with the first plate body part, wherein the rotating end part is pivoted with the corresponding end pivoting part, the pressing part is provided with a first inclined section connected with the first plate body part,

And a second inclined section extending outwardly from the first inclined section, and

The torsion connecting plate is arranged on the opposite outer sides of the friction connecting plate and the synchronous connecting rod, and is provided with a second plate body part and a pivoting end part connected with one end of the second plate body part, the second plate body part is pivoted with the movable end part of the friction connecting plate, and the pivoting end part is pivoted with the linkage end part of the synchronous connecting rod;

wherein the toothed ends of the synchronous connecting rods of the rotating member group are meshed with each other,

The torsion connecting plates of the rotating member group are synchronously pivoted, the rotating member group can pivot relative to the base rod between an unfolding position and a folding position, in the unfolding position, the torsion connecting plates extend along the left-right direction, the first inclined sections of the pressing parts of the friction connecting plates respectively press against the second plate body parts of the torsion connecting plates to enable the torsion connecting plates to generate torsion values, the second inclined sections are not overlapped with the second plate body parts in the inner-outer direction, the second inclined sections are gradually overlapped and pressed against the second plate body parts through the pivoting member group from the unfolding position to the folding position, so that the torsion values continuously and stably increase, in the folding position, the torsion connecting plates extend along the up-down direction and are spaced in the left-right direction, and the torsion connecting plates and the base rod jointly define a bending space.

2. The hinge mechanism of claim 1, wherein: each torsion connecting plate is further provided with a side protruding part extending from one side of the second plate body part, the side protruding part is not coplanar with the second plate body part at the tail end, and the side protruding parts are respectively pressed against the first plate body part of the friction connecting plate through the rotating piece group at the folding position.

3. The hinge mechanism of claim 2, wherein: each bearing section is also provided with an arc-shaped supporting part positioned between the central connecting part and the end pivoting part, the arc-shaped supporting part is provided with an upper side edge which is concaved inwards in an arc shape, and the side convex parts respectively move along the upper side edge in the pivoting process of the torsion connecting plate.

4. The hinge mechanism of claim 1, wherein: the hinge mechanism is suitable for being arranged between two machine bodies, the hinge mechanism further comprises two connecting seats, the connecting seats are suitable for being respectively arranged on the machine bodies and correspondingly connected with torsion connecting plates of the linkage units, each connecting seat is provided with a plurality of butt joint grooves which are arranged in the inner and outer directions and extend in the upper and lower directions, a plurality of inserting grooves which are arranged in the inner and outer directions and extend downwards along the upper and lower directions, each torsion connecting plate is further provided with a butt joint plate part connected with the other end of the second plate body part and a inserting plate part which extends downwards from the butt joint plate part, the butt joint plate parts of the torsion connecting plates are used for being in butt joint with the butt joint grooves, and the inserting plate parts of the torsion connecting plates are used for being inserted into the inserting grooves.

5. The hinge mechanism of claim 4, wherein: each torsion connecting plate is further provided with a positioning groove which is positioned between the second plate body part and the butt plate part and is concaved upwards from the lower edge of the torsion connecting plate, the rotation piece group is arranged at the unfolding position, and the end pivoting part of the base rod is accommodated in the positioning groove of the torsion connecting plate in a shape-fit manner.

6. The hinge mechanism of claim 1, wherein: the hinge mechanism further comprises a dustproof seat arranged on the linkage unit, wherein the dustproof seat comprises a bottom cover part arranged on the bottom side of the base rod and a side cover part bent and extended from one side of the bottom cover part and covering the outer side of the rotating part group.

7. A display device, characterized in that: the display device includes:

two fuselages;

The two hinge mechanisms according to claim 1, each hinge mechanism further comprising two connecting seats respectively provided on the body and respectively connected to the torsion connecting plates of the linkage unit; and

The flexible screen is arranged on the machine body;

The flexible screen is bent through the torsion connecting plate at the folding position, and the bent part of the flexible screen is accommodated in the accommodating space separated by the machine body.

8. The display device according to claim 7, wherein: each machine body comprises a base wall and two first side walls which extend upwards from two sides of the base wall respectively, the base wall and the first side walls jointly define an installation space for the flexible screen to be arranged, one end of each first side wall is concave inwards to form an installation groove, the installation grooves of the first side walls of the machine body correspond to each other in the left-right direction, and each hinge mechanism is arranged in the corresponding installation groove in the left-right direction.

9. The display device according to claim 8, wherein: each mounting groove is provided with a first groove part and a second groove part, each machine body is provided with two positioning columns respectively arranged in the second groove part, each connecting seat is provided with a butt joint block and a positioning plate connected with the butt joint block, the butt joint block is arranged in the first groove part, is provided with a plurality of butt joint grooves which are arranged in the inside-outside direction and extend in the up-down direction, and a plurality of inserting grooves which are arranged in the inside-outside direction and extend in the up-down direction, each torsion connecting plate is also provided with a butt joint plate part connected with the other end of the second plate body part and used for being in butt joint with the butt joint grooves, and a plugboard part which downwards extends from the butt joint plate part and is used for being inserted into the inserting grooves, and the positioning plate is arranged in the second groove part and is provided with a positioning hole for the positioning columns to pass through.

10. The display device according to claim 8, wherein: each first side wall is further provided with a wall body and a step part which is positioned on the inner side opposite to the wall body and is lower than the wall body in height, each machine body is further provided with a plurality of bearing posts which are arranged on the base wall, the bottom surface of the flexible screen is abutted against the step part of the first side wall and the bearing posts, and the top surface of the flexible screen is even with the wall body of the first side wall.