A folding hinge for a mobile terminal

Abstract

The present invention discloses a folding hinge for a mobile terminal, comprising a hinge structure, wherein the hinge structure comprises: an intermediate arc-shaped shell, two synchronous linkage mechanisms, two locking mechanisms, and a plurality of movable plate lifting and supporting mechanisms for ensuring that the movable plate supports and avoids a flexible screen when a terminal shell is unfolded and closed, wherein the movable plate lifting and supporting mechanisms are respectively fixedly connected to a sliding panel and a U-shaped fixed plate through a sliding portion provided with a folding distance compensation, and the U-shaped fixed plate is fixedly connected to the terminal shell and cooperates with the sliding of the sliding panel to form a motion closed loop; the present invention discloses a folding hinge for a mobile terminal, wherein the two synchronous linkage mechanisms, two locking mechanisms and four movable plate lifting and supporting mechanisms constituting the hinge action mechanism inside the hinge all adopt the same structure and a symmetrical installation method, thereby greatly simplifying the structural complexity of the hinge, and can be better adapted to a variety of mobile terminals.

Description

Technical Field

[0001] The present invention relates to a hinge, and in particular to a folding hinge for a mobile terminal. Background Art

[0002] Flexible screen is a kind of flexible screen, which refers to flexible OLED. The successful mass production of flexible screen is not only limited to the manufacturing of the new generation of high-end smartphones, but also has a profound impact on the application of wearable devices due to its low power consumption and bendable characteristics.

[0003] Folding hinges are common accessories for flexible screen devices, but they usually have multiple and complex hinge action mechanisms, unstable structural connections, and occupy a large space in the mobile terminal. The hinges are not compatible with different mobile terminals. Therefore, it is of great significance to study an internal folding hinge that has a small space occupancy rate, a simple and efficient action mechanism, and can be adapted to a variety of mobile terminals. Summary of the invention

[0004] The purpose of the present invention is to provide a folding hinge for a mobile terminal to solve the problems of the existing folding hinges proposed in the above background technology, such as multiple and complex hinge action mechanisms, unstable structural connections, large space occupation ratio in the mobile terminal, and poor compatibility of the hinges with different mobile terminals.

[0005] To achieve the above object, the present invention provides the following technical solution: A folding hinge for a mobile terminal, comprising a hinge structure, wherein the hinge structure comprises:

[0006] The middle arc-shaped shell is provided with multiple mounting holes;

[0007] Two synchronous linkage mechanisms are symmetrically installed inside the middle arc-shaped housing through screws and mounting holes, and the synchronous linkage mechanisms each include two rotating ends, which are respectively rotatably connected to two sliding panels for screen support;

[0008] Two locking mechanisms are symmetrically arranged on one side of the two synchronization mechanisms and are installed inside the middle arc-shaped housing by screws and mounting holes, and the locking mechanism includes two movable frames for connecting the terminal housing and realizing locking of the terminal housing when it is fully extended and fully closed, and the two movable frames are provided with at least three positioning surfaces for locking with springs and positioning columns;

[0009] A plurality of movable plate lifting support mechanisms for ensuring that the movable plate supports and avoids the flexible screen when the terminal shell is unfolded and closed, the movable plate lifting support mechanisms are respectively fixedly connected to the sliding panel and the U-shaped fixed plate through a sliding portion for folding distance compensation, and the U-shaped fixed plate is fixedly connected to the terminal shell and cooperates with the sliding of the sliding panel to form a motion closed loop;

[0010] It also includes an arc-shaped shell support plate, which is installed at the middle of the top end of the middle arc-shaped shell through screws and mounting holes.

[0011] As a preferred technical solution of the present invention, the synchronous linkage mechanism includes a first fixed seat and a second fixed seat which are symmetrically installed inside the middle arc-shaped shell by screws and mounting holes, and six openings are opened on the inner sides of the first fixed seat and the second fixed seat, wherein four transmission gears that mesh with each other and rotate synchronously are installed between four pairs of openings in opposite positions, wherein two transmission gears located on the side are respectively meshed and connected with a left gear wing plate and a right gear wing plate forming a rotating end, and the toothed ends of the left gear wing plate and the right gear wing plate are respectively rotatably connected to the remaining two pairs of openings, and the other ends of the left gear wing plate and the right gear wing plate are rotatably connected to the left sliding panel and the right sliding panel forming the sliding panel.

[0012] As a preferred technical solution of the present invention, the positioning surface of the locking mechanism is a symmetrically arranged spherical groove structure, and the locking mechanism includes a fixed seat A installed inside the middle arc-shaped shell by screws and mounting holes, a rectangular cavity is arranged in the middle of the fixed seat A, and two I-shaped positioning columns A are arranged inside the rectangular cavity, and two spherical lock heads passing through the cavity are fixedly installed on one side of the I-shaped positioning column A, and the spherical lock head located on one side of the fixed seat A contacts the positioning surface with a spherical groove structure at one end of the left movable frame A, and the spherical lock head located on the other side of the fixed seat A contacts the positioning surface with a spherical groove structure at one end of the left movable frame A, and the spherical lock head located on the other side of the fixed seat A contacts the positioning surface with a spherical groove structure at the right movable frame A. One end of the frame A is in contact with a positioning surface with a spherical groove structure. The left movable frame A and the right movable frame A are rotatably connected to the perforated ear pieces on both sides of the fixed seat A through the connecting shaft A that is inserted and connected. Three springs A are arranged inside the rectangular cavity. The three springs A are respectively sleeved with the protrusions on the other side of the two I-shaped positioning columns A. When the left movable frame A and the right movable frame A form an angle of 0° and 180°, the elastic supporting force of the spherical lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame. The left movable frame A and the right movable frame A are rotatably connected to the left shell and the right shell that constitute the terminal shell.

[0013] As a preferred technical solution of the present invention, the positioning surface of the locking mechanism is a wedge-shaped groove structure, and the locking mechanism includes a fixed seat B installed inside the middle arc-shaped shell by screws and mounting holes, a rectangular cavity is provided in the middle of the fixed seat B, and two straight-line positioning columns B are provided inside the rectangular cavity, and two wedge-shaped lock heads passing through the cavity are fixedly installed on one side of the straight-line positioning column B, and the wedge-shaped lock head located on one side of the fixed seat B contacts the positioning surface with a wedge-shaped groove structure at one end of the left movable frame B, and the wedge-shaped lock head located on the other side of the fixed seat B contacts the positioning surface with a wedge-shaped groove structure at one end of the right movable frame B. The end is in contact with a positioning surface with a wedge-shaped groove structure. The left movable frame B and the right movable frame B are rotatably connected to the perforated ear pieces on both sides of the fixed seat B through the connecting shaft B that is inserted and connected. Three springs B are arranged inside the rectangular cavity. The three springs B are respectively sleeved with the protrusions on the other side of the two I-shaped positioning columns B. When the left movable frame B and the right movable frame B are at an angle of 0° and 180°, the elastic supporting force of the wedge-shaped lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame. The left movable frame B and the right movable frame B are rotatably connected to the left shell and the right shell that constitute the terminal shell.

[0014] As a preferred technical solution of the present invention, the positioning surface of the locking mechanism is a sloped structure, and the locking mechanism includes a fixed seat C installed inside the middle arc-shaped shell by screws and mounting holes, a Z-shaped cavity is arranged in the middle of the fixed seat C, and two I-shaped positioning columns C are symmetrically arranged inside the Z-shaped cavity, and two spherical locks passing through the cavity are fixedly installed on one side of the I-shaped positioning column C, the spherical lock located on one side of the fixed seat C is in contact with the positioning surface with a sloped groove structure at one end of the left movable frame C, and the spherical lock located on the other side of the fixed seat C is in contact with the positioning surface with a sloped groove structure at one end of the right movable frame C. The left movable frame C and the right movable frame C are rotatably connected to the U-shaped openings on both sides of the fixed seat C through the connecting shafts C that are inserted and connected. Four springs C are arranged inside the Z-shaped cavity. One end of the spring C is sleeved with the protrusion on the other side of the corresponding I-shaped positioning column C. The other end of the spring C is inserted and connected with the groove arranged on the cavity wall of the Z-shaped cavity. When the left movable frame C and the right movable frame C are at an angle of 0° and 180°, the elastic supporting force of the spherical lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame. The left movable frame C and the right movable frame C are rotatably connected to the left shell and the right shell that constitute the terminal shell respectively.

[0015] As a preferred technical solution of the present invention, the movable plate lifting support mechanism is provided with four, and the movable plate lifting support mechanism includes a U-shaped connecting plate, and a connecting sliding shaft is inserted and connected at the notch of the U-shaped connecting plate, and the connecting sliding shaft is placed in the sloped groove of the wedge-shaped fixing seat and contacts with the surface of the wedge-shaped movable frame placed in the wedge-shaped fixing seat, and a plurality of supporting springs are arranged between one end of the wedge-shaped movable frame and the wedge-shaped fixing seat, and one end of the wedge-shaped fixing seat is fixedly installed with a blocking piece for resisting the supporting spring by screws; the U-shaped fixing plates are provided with four, and the four U-shaped fixing plates are two left U-shaped fixing plates fixedly installed on the top of the left shell body, respectively, and two right U-shaped fixing plates fixedly installed on the top of the right shell body, wherein the two U-shaped connecting plates are fixedly connected to the bottom of the left shell body, wherein the bottoms of the two wedge fixing seats are fixedly connected to the left U-shaped fixing plate, and the bottoms of the other two wedge fixing seats are fixedly connected to the right U-shaped fixing plate.

[0016] As a preferred technical solution of the present invention, a left screen support plate and a right screen support plate are fixedly installed on the inner side of the left shell body and the inner side of the right shell body respectively, and when the left screen support plate and the right screen support plate form an angle of 180°, they remain flush with the arc shell support plate.

[0017] As a preferred technical solution of the present invention, during the rotation of the left shell and the right shell, the left screen support plate and the right screen support plate always smoothly support the flexible screen.

[0018] As a preferred technical solution of the present invention, the ends of the connecting shaft A, the connecting shaft B, the connecting shaft C and the connecting sliding shaft are all engaged and connected with retaining springs.

[0019] As a preferred technical solution of the present invention, a left shell bottom plate and a right shell bottom plate are fixedly mounted on the bottom of the left shell and the right shell, respectively.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) By adopting the same structure and symmetrical installation method for the two synchronous linkage mechanisms, two locking mechanisms and four movable plate lifting support mechanisms constituting the hinge action mechanism inside the hinge, the structural complexity of the hinge is greatly simplified, while also ensuring the stability of the hinge when opening and closing, and the hinge of this structure can be better adapted to a variety of mobile terminals (mobile phones, laptops and tablet computers, etc.);

[0022] 2) The synchronous rotation of the mobile terminal is achieved through the synchronous linkage mechanism, and the multiple transmission gears arranged in the synchronous linkage mechanism can provide a good mechanical feedback when rotating. When cooperating with the gear wing plate, the synchronous rotation of the terminal shell can be ensured. Through the locking mechanism, the locking head of the I-shaped positioning column is used in conjunction with the positioning surface of the movable frame to achieve rapid locking of the terminal at angles of 0° and 180°. The movable plate lifting support mechanism structure allows the hinge to avoid and support the flexible screen during closing and unfolding to prevent damage to the flexible screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 It is a disassembled schematic diagram of the synchronous linkage mechanism of the present invention;

[0026] Figure 4 It is a disassembled schematic diagram of the movable plate lifting support mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the expanded structure of the locking mechanism of Example 1 of the present invention;

[0028] Figure 6 This is a schematic diagram of the closed structure of the locking mechanism of Example 1 of the present invention;

[0029] Figure 7 It is a cross-sectional view of the locking mechanism of Example 1 of the present invention;

[0030] Figure 8 A closed cross-sectional view of the locking mechanism of Example 1 of the present invention;

[0031] Fig. 9 An exploded view of the locking mechanism of Example 1 of the present invention;

[0032] Fig.10 This is a schematic diagram of the expanded structure of the locking mechanism of Example 2 of the present invention;

[0033] Fig.11 This is a schematic diagram of the closed structure of the locking mechanism of Example 2 of the present invention;

[0034] Fig.12 It is a cross-sectional view of the locking mechanism of Embodiment 2 of the present invention;

[0035] Fig.13 A closed cross-sectional view of the locking mechanism of Embodiment 2 of the present invention;

[0036] Fig.14An exploded view of the locking mechanism of Example 2 of the present invention;

[0037] Fig.15 This is a schematic diagram of the expanded structure of the locking mechanism of Example 3 of the present invention;

[0038] Fig.16 This is a schematic diagram of the closed structure of the locking mechanism of Example 3 of the present invention;

[0039] Fig.17 It is a cross-sectional view of the locking mechanism of Embodiment 3 of the present invention;

[0040] Fig.18 A closed cross-sectional view of the locking mechanism of Embodiment 3 of the present invention;

[0041] Fig.19 An exploded view of the locking mechanism of Example 3 of the present invention;

[0042] Fig. 20 It is an exploded view of the present invention.

[0043] In the figure: 1, hinge structure; 11, middle arc-shaped shell; 12, synchronous linkage mechanism; 121, first fixed seat; 122, second fixed seat; 123, transmission gear; 124, left gear wing plate; 125, right gear wing plate; 13, locking mechanism; 131a, fixed seat A; 132a, straight-line positioning column A; 133a, spring A; 134a, left movable frame A; 135a, right movable frame A; 136a, connecting shaft A; 131b, fixed seat B; 132b, straight-line positioning column B; 133b, spring B; 134b, left movable frame B; 135b, right movable frame B; 136b, connecting shaft B; 131c, fixed seat C ; 132c, I-shaped positioning column C; 133c, spring C; 134c, left movable frame C; 135c, right movable frame C; 136c, connecting shaft C; 14, movable plate lifting support mechanism; 141, U-shaped connecting plate; 142, connecting sliding shaft; 143, wedge-shaped fixing seat; 144, wedge-shaped movable frame; 145, supporting spring; 146, baffle; 15, arc-shaped shell support plate; 2, left shell body; 21, left screen support plate; 22, left sliding panel; 23, left shell bottom plate; 24, left U-shaped fixing plate; 3, right shell body; 31, right screen support plate; 32, right sliding panel; 33, right shell bottom plate; 34, right U-shaped fixing plate; 4, flexible screen. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example 1

[0046] See also Figure 1-9 The present invention provides a folding hinge for a mobile terminal, including a hinge structure 1, wherein the hinge structure 1 includes:

[0047] The middle arc-shaped housing 11 is provided with a plurality of mounting holes;

[0048] Two synchronous linkage mechanisms 12 are symmetrically installed inside the middle arc-shaped housing 11 through screws and mounting holes. The synchronous linkage mechanisms 12 each include two rotating ends, which are respectively rotatably connected to two sliding panels for supporting the screen;

[0049] Two locking mechanisms 13 are symmetrically arranged on one side of the two synchronization mechanisms and are installed inside the middle arc-shaped housing 11 by screws and mounting holes. The locking mechanism 13 includes two movable frames for connecting the terminal housing and realizing locking of the terminal housing when it is fully extended and fully closed, and the two movable frames are provided with at least three positioning surfaces for locking with springs and positioning columns;

[0050] A plurality of movable plate lifting support mechanisms 14 for ensuring that the movable plate supports and avoids the flexible screen 4 when the terminal housing is unfolded and closed. The movable plate lifting support mechanisms 14 are respectively fixedly connected to the sliding panel and the U-shaped fixed plate through a sliding portion for folding distance compensation, and the U-shaped fixed plate is fixedly connected to the terminal housing and cooperates with the sliding of the sliding panel to form a motion closed loop;

[0051] It also includes an arc-shaped shell support plate 15, which is installed at the middle of the top end of the middle arc-shaped shell 11 through screws and mounting holes.

[0052] Further, the synchronous linkage mechanism 12 includes a first fixed seat 121 and a second fixed seat 122 which are symmetrically installed inside the middle arc-shaped housing 11 through screws and mounting holes. Six openings are provided on the inner sides of the first fixed seat 121 and the second fixed seat 122, wherein four transmission gears 123 which mesh with each other and rotate synchronously are installed between four pairs of openings which are opposite to each other, wherein two transmission gears 123 located on the side are respectively meshed and connected with a left gear wing plate 124 and a right gear wing plate 125 which form a rotating end, and one end of the left gear wing plate 124 and the right gear wing plate 125 with teeth are respectively rotatably connected with the remaining two pairs of openings, and the other ends of the left gear wing plate 124 and the right gear wing plate 125 are rotatably connected with the left sliding panel 22 and the right sliding panel 32 which form a sliding panel;

[0053] Specifically, when the mobile terminal is opened, the left housing 2 and the right housing 3 cause the left gear wing plate 124 connected to the left sliding panel 22 to rotate counterclockwise about the rotating shaft in the corresponding opening, and drive the transmission gear 123 to mesh and drive the right gear wing plate 125 to move clockwise, drive the right sliding panel 32 to move clockwise, and drive the right housing 3 to rotate clockwise, thereby realizing the synchronous opening movement of the left and right housings;

[0054] When the mobile terminal is closed, under the action of the left shell 2 and the right shell 3, the left gear wing 124 connected to the left sliding panel 22 rotates clockwise about the rotating shaft in the corresponding opening, and drives the transmission gear 123 to engage and drive the right gear wing 125 to move counterclockwise, drives the right sliding panel 32 to move counterclockwise, and drives the right shell 3 to rotate counterclockwise, thereby realizing the synchronous opening movement of the left and right shells.

[0055] Furthermore, the positioning surface of the locking mechanism 13 is a symmetrically arranged spherical groove structure. The locking mechanism 13 includes a fixed seat A131a installed in the middle arc-shaped shell 11 through a screw matching the mounting hole. A rectangular cavity is arranged in the middle of the fixed seat A131a. Two straight-line positioning columns A132a are arranged inside the rectangular cavity. Two spherical locks passing through the cavity are fixedly installed on one side of the straight-line positioning column A132a. The spherical lock located on one side of the fixed seat A131a contacts the positioning surface with a spherical groove structure at one end of the left movable frame A134a. The spherical lock located on the other side of the fixed seat A131a contacts the positioning surface with a spherical groove structure at one end of the right movable frame A135a. The left movable frame A134a and the right movable frame A135a are respectively rotatably connected with the ear pieces with holes on both sides of the fixed seat A131a through the connecting shaft A136a connected through the insertion, and three springs A133a are arranged inside the rectangular cavity, and the three springs A133a are respectively sleeved with the protrusions on the other side of the two I-shaped positioning columns A132a, and when the left movable frame A134a and the right movable frame A135a form an angle of 0° and 180°, the elastic supporting force of the spherical lock head on the movable frame positioning surface is greater than the gravity received by the movable frame, and the left movable frame A134a and the right movable frame A135a are respectively rotatably connected with the left shell 2 and the right shell 3 constituting the terminal shell;

[0056] Specifically, when the mobile terminal is opened, the counterclockwise rotating left shell 2 acts on the positioning surface of the left movable frame A134a, and the clockwise rotating right shell 3 acts on the positioning surface of the right movable frame A135a, and makes the left movable frame A134a and the right movable frame A135a rotate about their respective connecting axes A136a. When the left and right shells are fully opened, the spring A133a is used in conjunction with the I-shaped positioning column A132a, and the spherical lock on one side is inserted into one of the rows of spherical grooves at one end of the left movable frame A134a, and the spherical lock on the other side is inserted into one of the rows of spherical grooves at one end of the right movable frame A135a, and the elastic supporting force of the spherical lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame, thereby achieving the locking of the left movable frame A134a and the right movable frame A135a, and then achieving the locking of the left shell 2 and the right shell 3 when they are opened.

[0057] When the mobile terminal is closed, the clockwise rotating left shell 2 acts on the positioning surface of the left movable frame A134a, and the counterclockwise rotating right shell 3 acts on the positioning surface of the right movable frame A135a, and makes the left movable frame A134a and the right movable frame A135a also rotate about their respective connecting axes A136a. When the left and right shells are completely closed, the spring A133a is used in conjunction with the I-shaped positioning column A132a, and the spherical lock on one side is inserted into another row of spherical grooves at one end of the left movable frame A134a, and the spherical lock on the other side is inserted into another row of spherical grooves at one end of the right movable frame A135a. At this time, the elastic supporting force of the spherical lock on the positioning surface of the movable frame is also greater than the gravity exerted on the movable frame, thereby realizing the locking of the left movable frame A134a and the right movable frame A135a, and then realizing the locking of the left shell 2 and the right shell 3 when they are closed.

[0058] Furthermore, the movable plate lifting support mechanism 14 is provided with four, and the movable plate lifting support mechanism 14 includes a U-shaped connecting plate 141, and a connecting sliding shaft 142 is inserted and connected at the notch of the U-shaped connecting plate 141, and the connecting sliding shaft 142 is placed in the slope groove of the wedge-shaped fixing seat 143 and contacts the surface of the wedge-shaped movable frame 144 placed in the wedge-shaped fixing seat 143, and a plurality of supporting springs 145 are arranged between one end of the wedge-shaped movable frame 144 and the wedge-shaped fixing seat 143, and one end of the wedge-shaped fixing seat 143 is screwed. The nail is fixedly installed with a baffle 146 for resisting the support spring 145; four U-shaped fixing plates are provided, and the four U-shaped fixing plates are two left U-shaped fixing plates 24 fixed to the top of the left shell 2 and two right U-shaped fixing plates 34 fixedly installed to the top of the right shell 3, wherein two U-shaped connecting plates 141 are fixedly connected to the bottom of the left shell 2, wherein the bottoms of two wedge-shaped fixing seats 143 are fixedly connected to the left U-shaped fixing plate 24, and the bottoms of the other two wedge-shaped fixing seats 143 are fixedly connected to the right U-shaped fixing plate 34;

[0059] Specifically, when the mobile terminal is opened, the counterclockwise rotating left housing 2 and the clockwise rotating right housing 3 act on the corresponding U-shaped connecting plate 141 respectively, and make the U-shaped connecting plate 141 and the connecting sliding shaft 142 slide upward along the slope groove, driving the left sliding panel 22 and the right sliding panel 32 to rotate and rise, and the supporting spring 145 presses the wedge-shaped movable frame 144 tightly to prevent it from loosening when pushing the connecting sliding shaft 142, and ensures that the left sliding panel 22 and the right sliding panel 32 are parallel to the surfaces of the two wedge-shaped fixing seats 143, and ensures that the fixing surface of the flexible screen 4 is level;

[0060] When the mobile terminal is closed, the U-shaped connecting plate 141 and the connecting sliding shaft 142 slide downward along the sloped groove, driving the left sliding panel 22 and the right sliding panel 32 to rotate and sink, and the supporting spring 145 presses the wedge-shaped movable frame 144 to prevent it from loosening when pushing the connecting sliding shaft 142, ensuring that the left sliding panel 22 and the right sliding panel 32 make room for the flexible screen 4 to ensure non-interference.

[0061] Furthermore, a left screen support plate 21 and a right screen support plate 31 are fixedly installed on the inner side of the left shell 2 and the inner side of the right shell 3, respectively, and when the left screen support plate 21 and the right screen support plate 31 form an angle of 180°, they remain flush with the arc shell support plate 15. The left screen support plate 21 and the right screen support plate 31 are used in conjunction with the arc shell support plate 15 to ensure that the flexible screen 4 is supported.

[0062] Furthermore, during the rotation of the right shell 3 and the right shell 3, the left screen support plate 21 and the right screen support plate 31 always smoothly support the flexible screen 4 to avoid stress on the flexible screen 4 and damage.

[0063] Furthermore, the ends of the connecting shaft A136a, the connecting shaft B136b, the connecting shaft C136c and the connecting sliding shaft 142 are all engaged with retaining springs to prevent the connecting shaft A136a, the connecting shaft B136b, the connecting shaft C136c and the connecting sliding shaft 142 from detaching during rotation.

[0064] Example 2

[0065] See also Figure 10-14 The present invention provides a folding hinge for a mobile terminal, including a hinge structure 1, wherein the hinge structure 1 includes:

[0066] The middle arc-shaped housing 11 is provided with a plurality of mounting holes;

[0067] Two synchronous linkage mechanisms 12 are symmetrically installed inside the middle arc-shaped housing 11 through screws and mounting holes. The synchronous linkage mechanisms 12 each include two rotating ends, which are respectively rotatably connected to two sliding panels for supporting the screen;

[0068] Two locking mechanisms 13 are symmetrically arranged on one side of the two synchronization mechanisms and are installed inside the middle arc-shaped housing 11 by screws and mounting holes. The locking mechanism 13 includes two movable frames for connecting the terminal housing and realizing locking of the terminal housing when it is fully extended and fully closed, and the two movable frames are provided with at least three positioning surfaces for locking with springs and positioning columns;

[0069] A plurality of movable plate lifting support mechanisms 14 for ensuring that the movable plate supports and avoids the flexible screen 4 when the terminal housing is unfolded and closed. The movable plate lifting support mechanisms 14 are respectively fixedly connected to the sliding panel and the U-shaped fixed plate through a sliding portion for folding distance compensation, and the U-shaped fixed plate is fixedly connected to the terminal housing and cooperates with the sliding of the sliding panel to form a motion closed loop;

[0070] It also includes an arc-shaped shell support plate 15, which is installed in the middle of the top end of the middle arc-shaped shell 11 by screws and mounting holes; wherein the positioning surface of the locking mechanism 13 is a wedge-shaped groove structure, and the locking mechanism 13 includes a fixing seat B131b installed inside the middle arc-shaped shell 11 by screws and mounting holes, and a rectangular cavity is provided in the middle of the fixing seat B131b, and two straight-line positioning columns B132b are provided inside the rectangular cavity, and two wedge-shaped locks passing through the cavity are fixedly installed on one side of the straight-line positioning column B132b, and the wedge-shaped lock located on one side of the fixing seat B131b contacts with the positioning surface with a wedge-shaped groove structure at one end of the left movable frame B134b, and the wedge-shaped lock located on the other side of the fixing seat B131b It contacts with a positioning surface with a wedge-shaped groove structure at one end of the right movable frame B135b, and the left movable frame B134b and the right movable frame B135b are respectively rotatably connected with the perforated ear pieces on both sides of the fixed seat B131b through the connecting shaft B136b connected through the insertion, and three springs B133b are arranged inside the rectangular cavity, and the three springs B133B are respectively sleeved with the protrusions on the other side of the two I-shaped positioning columns B132b, and when the left movable frame B134b and the right movable frame B135b form an angle of 0° and 180°, the elastic supporting force of the wedge-shaped lock head on the positioning surface of the movable frame is greater than the gravity on the movable frame, and the left movable frame B134b and the right movable frame B135b are respectively rotatably connected with the left shell 2 and the right shell 3 constituting the terminal shell;

[0071] Specifically, when the mobile terminal is opened, the counterclockwise rotating left shell 2 acts on the positioning surface of the left movable frame B134b, and the clockwise rotating right shell 3 acts on the positioning surface of the right movable frame B135b, and makes the left movable frame B134b and the right movable frame B135b rotate about their respective connecting axes B136b. When the left and right shells are fully opened, the spring B133b is used in conjunction with the I-shaped positioning column B132b, and the wedge-shaped lock on one side is inserted into one of the rows of wedge-shaped grooves at one end of the left movable frame B134b, and the spherical lock on the other side is inserted into one of the rows of wedge-shaped grooves at one end of the right movable frame B135b, and the elastic supporting force of the wedge-shaped lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame, thereby achieving the locking of the left movable frame B134b and the right movable frame B135b, and then achieving the locking of the left shell 2 and the right shell 3 when they are opened.

[0072] When the mobile terminal is closed, the clockwise rotating left shell 2 acts on the positioning surface of the left movable frame B134b, and the counterclockwise rotating right shell 3 acts on the positioning surface of the right movable frame B135b, and makes the left movable frame B134b and the right movable frame B135b also rotate about their respective connecting shafts B136b. When the left and right shells are completely closed, the spring B133b is used in conjunction with the I-shaped positioning column B132b, and the wedge-shaped lock on one side is inserted into another row of wedge-shaped grooves at one end of the left movable frame B134b, and the wedge-shaped lock on the other side is inserted into another row of wedge-shaped grooves at one end of the right movable frame B135b. At this time, the elastic supporting force of the wedge-shaped lock on the positioning surface of the movable frame is also greater than the gravity exerted on the movable frame, thereby realizing the locking of the left movable frame B134b and the right movable frame B135b, and then realizing the locking of the left shell 2 and the right shell 3 when they are closed.

[0073] Example 3

[0074] See also Figure 15-19 The present invention provides a folding hinge for a mobile terminal, including a hinge structure 1, wherein the hinge structure 1 includes:

[0075] The middle arc-shaped housing 11 is provided with a plurality of mounting holes;

[0076] Two synchronous linkage mechanisms 12 are symmetrically installed inside the middle arc-shaped housing 11 through screws and mounting holes. The synchronous linkage mechanisms 12 each include two rotating ends, which are respectively rotatably connected to two sliding panels for supporting the screen;

[0077] Two locking mechanisms 13 are symmetrically arranged on one side of the two synchronization mechanisms and are installed inside the middle arc-shaped housing 11 by screws and mounting holes. The locking mechanism 13 includes two movable frames for connecting the terminal housing and realizing locking of the terminal housing when it is fully extended and fully closed, and the two movable frames are provided with at least three positioning surfaces for locking with springs and positioning columns;

[0078] A plurality of movable plate lifting support mechanisms 14 for ensuring that the movable plate supports and avoids the flexible screen 4 when the terminal housing is unfolded and closed. The movable plate lifting support mechanisms 14 are respectively fixedly connected to the sliding panel and the U-shaped fixed plate through a sliding portion for folding distance compensation, and the U-shaped fixed plate is fixedly connected to the terminal housing and cooperates with the sliding of the sliding panel to form a motion closed loop;

[0079] It also includes an arc-shaped shell support plate 15, which is installed in the middle of the top end of the middle arc-shaped shell 11 by screws and mounting holes; the positioning surface of the locking mechanism 13 is an inclined structure, and the locking mechanism 13 includes a fixed seat C131c installed in the middle arc-shaped shell 11 by screws and mounting holes, and a Z-shaped cavity is arranged in the middle of the fixed seat C131c, and two I-shaped positioning columns C132c are symmetrically arranged inside the Z-shaped cavity, and two spherical locks passing through the cavity are fixedly installed on one side of the I-shaped positioning column C132c, and the spherical lock located on one side of the fixed seat C131c contacts with the positioning surface with an inclined groove structure at one end of the left movable frame C134c, and the spherical lock located on the other side of the fixed seat C131c contacts with the positioning surface of the bevel groove structure at one end of the right movable frame C135c The positioning surfaces with the inclined groove structure are in contact, the left movable frame C134c and the right movable frame C135c are rotatably connected with the U-shaped openings on both sides of the fixed seat C131c through the interlaced connecting shaft C136c, and four springs C133c are arranged inside the Z-shaped cavity, one end of the spring C133c is sleeved with the protrusion on the other side of the corresponding I-shaped positioning column C132c, and the other end of the spring C133c is interlaced with the groove arranged on the cavity wall of the Z-shaped cavity, and when the left movable frame C134c and the right movable frame C135c are at an angle of 0° and 180°, the elastic supporting force of the spherical lock head on the positioning surface of the movable frame is greater than the gravity received by the movable frame, and the left movable frame C134c and the right movable frame C135c are rotatably connected with the left shell 2 and the right shell 3 constituting the terminal shell respectively;

[0080] Specifically, when the mobile terminal is opened, the counterclockwise rotating left shell 2 acts on the positioning surface of the left movable frame C134c, and the clockwise rotating right shell 3 acts on the positioning surface of the right movable frame C135c, and makes the left movable frame C134c and the right movable frame C135c rotate about their respective connecting axes C136c. When the left and right shells are fully opened, the spring C133c cooperates with the I-shaped positioning column C132c, and the spherical lock on one side acts on one side of the inclined surface of one end of the left movable frame C134c, and the spherical lock on the other side is inserted into one side of the inclined surface of one end of the right movable frame C135c, and the elastic supporting force of the spherical lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame, thereby realizing the locking of the left movable frame C134c and the right movable frame C135c, and then realizing the locking of the left shell 2 and the right shell 3 when they are opened.

[0081] When the mobile terminal is closed, the clockwise rotating left shell 2 acts on the positioning surface of the left movable frame C134c, and the counterclockwise rotating right shell 3 acts on the positioning surface of the right movable frame C135c, and the left movable frame C134c and the right movable frame C135c are also rotated about their respective connecting axes C136c. When the left and right shells are completely closed, the spring C133c is used in conjunction with the I-shaped positioning column C132c, and the spherical lock on one side is inserted into the other side inclined surface of one end of the left movable frame C134c, and the spherical lock on the other side is inserted into the other side inclined surface of one end of the right movable frame C135c. At this time, the elastic supporting force of the spherical lock on the positioning surface of the movable frame is also greater than the gravity exerted on the movable frame, thereby achieving the locking of the left movable frame C134c and the right movable frame C135c, and then achieving the locking of the left shell 2 and the right shell 3 when closed.

[0082] Furthermore, a left shell bottom plate 23 and a right shell bottom plate 33 are fixedly installed on the bottom of the left shell 2 and the right shell 3, respectively. The left shell bottom plate 23 and the right shell bottom plate 33 are arranged to ensure the flatness of the back of the left and right shells and increase the strength and stability of the structure.

[0083] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0084] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding hinge for a mobile terminal, comprising a hinge structure (1), characterized in that: The hinge structure (1) comprises: The middle arc-shaped housing (11) is provided with a plurality of mounting holes; Two synchronous linkage mechanisms (12) are symmetrically installed inside the middle arc-shaped housing (11) through screws and mounting holes, and the synchronous linkage mechanisms (12) each include two rotating ends, and the two rotating ends are respectively rotatably connected to two sliding panels for supporting the screen; Two locking mechanisms (13) are symmetrically arranged on one side of the two synchronization mechanisms and are installed inside the middle arc-shaped housing (11) by means of screws and mounting holes, wherein the locking mechanism (13) comprises two movable frames for connecting the terminal housing and realizing locking of the terminal housing when the terminal housing is fully extended or fully closed, and the two movable frames are provided with at least three positioning surfaces for locking in cooperation with springs and positioning columns; A plurality of movable panel lifting support mechanisms (14) for ensuring that the movable panel supports and avoids the flexible screen (4) when the terminal shell is unfolded and closed, the movable panel lifting support mechanisms (14) being fixedly connected to the sliding panel and the U-shaped fixing plate respectively through a sliding portion for folding distance compensation, and the U-shaped fixing plate being fixedly connected to the terminal shell and cooperating with the sliding of the sliding panel to form a closed motion loop; It also includes an arc-shaped shell support plate (15), wherein the arc-shaped shell support plate (15) is installed at the middle of the top end of the middle arc-shaped shell (11) by means of screws and mounting holes; The synchronous linkage mechanism (12) comprises a first fixed seat (121) and a second fixed seat (122) which are symmetrically mounted inside the middle arc-shaped housing (11) by means of screws and mounting holes. Six openings are provided on the inner sides of the first fixed seat (121) and the second fixed seat (122), wherein four transmission gears (123) which mesh with each other and rotate synchronously are installed between four pairs of openings which are located opposite to each other, wherein two transmission gears (123) located on the side are respectively meshed and connected with a left gear wing plate (124) and a right gear wing plate (125) which form a rotating end, and the toothed ends of the left gear wing plate (124) and the right gear wing plate (125) are respectively rotatably connected with the remaining two pairs of openings, and the other ends of the left gear wing plate (124) and the right gear wing plate (125) are rotatably connected with a left sliding panel (22) and a right sliding panel (32) which form a sliding panel; The positioning surface of the locking mechanism (13) is a symmetrically arranged spherical groove structure. The locking mechanism (13) comprises a fixed seat A (131a) installed inside the middle arc-shaped housing (11) by means of screws and mounting holes. A rectangular cavity is arranged in the middle of the fixed seat A (131a). Two straight-line positioning columns A (132a) are arranged inside the rectangular cavity. Two spherical locks passing through the cavity are fixedly installed on one side of the straight-line positioning columns A (132a). The spherical lock located on one side of the fixed seat A (131a) contacts the positioning surface with the spherical groove structure at one end of the left movable frame A (134a). The spherical lock located on the other side of the fixed seat A (131a) contacts the positioning surface with the spherical groove structure at one end of the right movable frame A (135a). The left movable frame A (134a) and the right movable frame A (135a) are respectively connected to the ear pieces with holes on both sides of the fixed seat A (131a) through the connecting shaft A (136a) connected through the connection. Three springs A (133a) are arranged inside the rectangular cavity. The three springs A (133a) are respectively connected to the protrusions on the other side of the two straight-line positioning columns A (132a). When the left movable frame A (134a) and the right movable frame A (135a) are at an angle of 0° and 180°, the elastic supporting force of the spherical lock on the positioning surface of the movable frame is greater than the gravity on the movable frame. The left movable frame A (134a) and the right movable frame A (135a) are respectively connected to the left shell (2) and the right shell (3) constituting the terminal shell.

2. A folding hinge for a mobile terminal according to claim 1, characterized in that: The positioning surface of the locking mechanism (13) is a wedge-shaped groove structure. The locking mechanism (13) includes a fixing seat B (131b) installed inside the middle arc-shaped housing (11) by screws and mounting holes. A rectangular cavity is arranged in the middle of the fixing seat B (131b). Two straight-line positioning columns B (132b) are arranged inside the rectangular cavity. Two wedge-shaped lock heads passing through the cavity are fixedly installed on one side of the straight-line positioning columns B (132b). The wedge-shaped lock head located on one side of the fixing seat B (131b) contacts the positioning surface with the wedge-shaped groove structure at one end of the left movable frame B (134b). The wedge-shaped lock head located on the other side of the fixing seat B (131b) contacts the positioning surface with the wedge-shaped groove structure at one end of the right movable frame B (135b). The left movable frame B (134b) and the right movable frame B (135b) are respectively rotatably connected to the ear pieces with holes on both sides of the fixed seat B (131b) through the connecting shaft B (136b) connected through the insertion. Three springs B (133b) are arranged inside the rectangular cavity. The three springs B (133b) are respectively sleeved with the protrusions on the other side of the two straight-line positioning columns B (132b). When the left movable frame B (134b) and the right movable frame B (135b) are at an angle of 0° and 180°, the elastic supporting force of the wedge-shaped lock on the positioning surface of the movable frame is greater than the gravity exerted on the movable frame. The left movable frame B (134b) and the right movable frame B (135b) are respectively rotatably connected to the left shell (2) and the right shell (3) constituting the terminal shell.

3. A folding hinge for a mobile terminal according to claim 2, characterized in that: The positioning surface of the locking mechanism (13) is an inclined surface structure. The locking mechanism (13) comprises a fixing seat C (131c) installed inside the middle arc-shaped housing (11) by means of screws and mounting holes. A Z-shaped cavity is arranged in the middle of the fixing seat C (131c). Two straight-line positioning columns C (132c) are symmetrically arranged inside the Z-shaped cavity. Two spherical locks passing through the cavity are fixedly installed on one side of the straight-line positioning columns C (132c). The spherical lock located on one side of the fixing seat C (131c) contacts a positioning surface with an inclined surface groove structure at one end of the left movable frame C (134c). The spherical lock located on the other side of the fixing seat C (131c) contacts a positioning surface with an inclined surface groove structure at one end of the right movable frame C (135c). The left movable frame C (134 c) and the right movable frame C (135c) are respectively rotatably connected to the U-shaped openings on both sides of the fixed seat C (131c) through the connecting shaft C (136c) connected through the insertion, and four springs C (133c) are arranged inside the Z-shaped cavity, one end of the spring C (133c) is sleeved with the protrusion on the other side of the corresponding I-shaped positioning column C (132c), and the other end of the spring C (133c) is inserted and connected with the groove arranged on the cavity wall of the Z-shaped cavity, and when the left movable frame C (134c) and the right movable frame C (135c) are at an angle of 0° and 180°, the elastic supporting force of the spherical lock head on the positioning surface of the movable frame is greater than the gravity received by the movable frame, and the left movable frame C (134c) and the right movable frame C (135c) are respectively rotatably connected to the left shell (2) and the right shell (3) constituting the terminal shell.

4. A folding hinge for a mobile terminal according to claim 3, characterized in that: The movable plate lifting support mechanism (14) is provided with four, and the movable plate lifting support mechanism (14) comprises a U-shaped connecting plate (141), and a connecting sliding shaft (142) is inserted and connected at the notch of the U-shaped connecting plate (141), and the connecting sliding shaft (142) is placed in the slope groove of the wedge-shaped fixing seat (143) and contacts with the surface of the wedge-shaped movable frame (144) placed in the wedge-shaped fixing seat (143), and a plurality of supporting springs (145) are arranged between one end of the wedge-shaped movable frame (144) and the wedge-shaped fixing seat (143), and one end of the wedge-shaped fixing seat (143) is provided with a plurality of supporting springs (145). A blocking piece (146) for resisting a supporting spring (145) is fixedly installed by screws; four U-shaped fixing plates are provided, and the four U-shaped fixing plates are two left U-shaped fixing plates (24) fixed to the top of the left shell (2) and two right U-shaped fixing plates (34) fixedly installed to the top of the right shell (3), wherein two U-shaped connecting plates (141) are fixedly connected to the bottom of the left shell (2), wherein the bottoms of two wedge-shaped fixing seats (143) are fixedly connected to the left U-shaped fixing plate (24), and the bottoms of the other two wedge-shaped fixing seats (143) are fixedly connected to the right U-shaped fixing plate (34).

5. A folding hinge for a mobile terminal according to claim 4, characterized in that: A left screen support plate (21) and a right screen support plate (31) are fixedly mounted on the inner side of the left shell (2) and the inner side of the right shell (3), respectively. When the left screen support plate (21) and the right screen support plate (31) form an angle of 180°, they remain flush with the arc shell support plate (15).

6. A folding hinge for a mobile terminal according to claim 5, characterized in that: During the rotation of the right housing (3) and the right housing (3), the left screen support plate (21) and the right screen support plate (31) always smoothly support the flexible screen (4).

7. A folding hinge for a mobile terminal according to claim 6, characterized in that: The ends of the connecting shaft A (136a), the connecting shaft B (136b), the connecting shaft C (136c) and the connecting sliding shaft (142) are all engaged with a retaining spring.

8. The folding hinge for a mobile terminal according to claim 1, characterized in that: A left shell bottom plate (23) and a right shell bottom plate (33) are fixedly mounted on the bottom of the left shell (2) and the right shell (3), respectively.

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