A mobile terminal with an outward-folding flexible screen

Abstract

The present invention discloses an outward-folding flexible screen mobile terminal, comprising a shell, a hinge mechanism and a flexible screen. The shell consists of a left shell and a right shell, and a hinge mechanism is installed between the left shell and the right shell for synchronously folding and rotating the two shells and realizing the installation of the flexible screen. The hinge mechanism consists of five parallel-arranged first shrimp shell members, a second shrimp shell member, a third shrimp shell member, a fourth shrimp shell member and a fifth shrimp shell member, and a motion concentric mechanism, a torsion mechanism and a synchronous motion structure for realizing synchronous rotation of the five shrimp shell members and mirror-arranged. The left shell and the right shell of the present invention can be synchronously rotated and connected through the hinge mechanism. The total length of the position where each shrimp shell member is attached to the flexible screen after being unfolded and closed is unchanged by the cooperation of the multiple shrimp shell members with the motion concentric mechanism, the torsion mechanism and the synchronous motion structure, so that the flexible screen is smoothly supported during the opening and closing process of the mobile terminal to avoid damage to the flexible screen due to the strong stress generated by the rotation of the hinge mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to an outward-folding flexible screen mobile terminal. Background Art

[0002] Flexible screen is a new type of screen. For mobile terminals with external flexible screens, the length change caused by the closing and opening of the hinge needs to be dealt with. For the middle part of the hinge, some hinges use a structure with multiple supports to achieve support and shape change when bending and flattening.

[0003] 1) However, the hinge rotation structure of traditional foldable flexible screen mobile terminals is generally too complicated and difficult to process. At the same time, the rotation structure has poor linkage with the connected shrimp shell parts during rotation, forcing the shrimp shell hinge to generate greater stress during rotation. Long-term use will most likely damage the flexible screen placed on the outside of the shrimp shell hinge.

[0004] 2) When the traditional hinge structure rotates, the required Z-direction space inside the hinge is relatively large, which cannot make the equipment thinner and lighter. In addition, the hinge structure for the transmission flexible screen does not have an angle limiting function, and gradually cannot meet the needs of the industry. Summary of the invention

[0005] The purpose of the present invention is to provide an outward-folding flexible screen mobile terminal to solve the problem that the rotating structure of the hinge of the traditional foldable flexible screen mobile terminal proposed in the above background technology is generally too complicated and difficult to process, and the rotating structure has poor linkage with the connected shrimp shell parts during rotation, and the required internal Z-direction space of the hinge is large, which cannot make the device light and thin, and the hinge structure for the transmission flexible screen does not have an angle limiting function.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outward-folding flexible screen mobile terminal, comprising a housing, a hinge mechanism and a flexible screen, wherein the housing is composed of a left housing and a right housing, and a hinge mechanism for synchronously folding and rotating the left housing and realizing the installation of the flexible screen is installed between the left housing and the right housing, and the hinge mechanism is composed of five parallel first shrimp shell members, a second shrimp shell member, a third shrimp shell member, a fourth shrimp shell member and a fifth shrimp shell member, and a motion concentric mechanism, a torsion mechanism and a synchronous motion structure for realizing synchronous rotation of the five shrimp shell members and mirror-setting;

[0007] The motion concentric mechanism includes a synchronization mechanism A and two synchronization mechanisms B. The synchronization mechanism A is installed on the second shrimp shell member, the third shrimp shell member and the fourth shrimp shell member, one synchronization mechanism B is installed on the first shrimp shell member and the second shrimp shell member, and the other synchronization mechanism B is installed on the fourth shrimp shell member and the fifth shrimp shell member. The synchronization mechanism A cooperates with the synchronization mechanism B to realize the synchronous rotation of the five shrimp shell members around their respective axes.

[0008] The torque mechanism is installed on the third shrimp shell member to provide torque during rotation, and cooperates with the first synchronous motion mechanism installed on the left shell and the right shell to realize the limited synchronous rotation of the shrimp shell member and the shell;

[0009] The second synchronous motion mechanism is also installed on the left shell and the right shell, and cooperates with the first synchronous motion mechanism to realize the outward folding and synchronous rotation of the left shell and the right shell.

[0010] As a preferred technical solution of the present invention, the synchronization mechanism includes a Y-shaped crescent boss fixedly installed on the third shrimp shell member, the crescent protrusions on both sides of the Y-shaped crescent boss are relatively slidably connected with the first crescent groove member, the two first crescent groove members are respectively installed on the second shrimp shell member and the fourth shrimp shell member, and cooperate with the Y-shaped crescent boss to achieve a stable rotation relationship and rotation path between the above three shrimp shell members.

[0011] As a preferred technical solution of the present invention, the two synchronization mechanisms B are both composed of a second crescent groove member and a crescent member that rotates with it. The second crescent groove member of one synchronization mechanism B is installed on the second shrimp shell member, and the first shrimp shell member and the second shrimp shell member are maintained in a stable rotation relationship and rotation path by cooperating with the crescent member installed on the first shrimp shell member. The second crescent groove member of the other synchronization mechanism B is installed on the fourth shrimp shell member, and the fourth shrimp shell member and the fifth shrimp shell member are maintained in a stable rotation relationship and rotation path by cooperating with the crescent member installed on the fifth shrimp shell member.

[0012] As a preferred technical solution of the present invention, the torque mechanism includes a Y-shaped fixed boss installed on the third shrimp shell member, and two toothed sleeves are sleeved on the top of the Y-shaped fixed boss through two fixedly connected pins. The two toothed sleeves are provided with tooth grooves that mesh with each other and rotate synchronously on opposite sides. One end of the two pins is also sleeved with a torsion plate that cooperates with the toothed sleeves to rotate to provide torque for the hinge mechanism. A gasket sleeved on the outside of the pin is provided between the torque plate and the toothed sleeve, and the ends of the two pins are also buckled with E buckles to prevent the torque plate from falling off.

[0013] As a preferred technical solution of the present invention, the first synchronous motion mechanism includes two wing pieces fixedly connected to two toothed sleeves respectively, and sliding protrusions are fixedly provided on both sides of the end of the wing piece, and the sliding protrusions slide in cooperation with the arc-shaped groove inside the slide seat, one of the slide seats is installed in the corresponding workpiece groove on the inner side of the left shell body, and the other slide seat is installed in the corresponding workpiece groove on the inner side of the right shell body, and a cover body is fixedly installed on the top of the slide seat, and when the left shell body and the right shell body are fully closed, the sliding protrusion slides to the bottom of the arc-shaped groove.

[0014] As a preferred technical solution of the present invention, the two second synchronous motion mechanisms each include a U-shaped part and an end plate, a bendable elastic sheet is fixedly installed between the U-shaped part and the end plate by screws, two springs are fixedly installed on the inner side of the U-shaped part, and limiting sliding grooves are provided on both sides of the U-shaped part. The U-shaped part and the end plate of one second synchronous motion mechanism are respectively fixedly connected to the slot on the inner side of the left shell body and the inner side of the right shell body, and two positioning pins A slidably connected to the limiting sliding grooves on both sides of the corresponding U-shaped part are fixedly installed in the slot of the left shell body, and a positioning pin B fixedly connected to the corresponding two springs is also fixedly installed in one end of the slot. The U-shaped part and the end plate of the other second synchronous motion mechanism are respectively fixedly connected to the slot on the inner side of the right shell body and the inner side of the left shell body, and two positioning pins A slidably connected to the limiting sliding grooves on both sides of the corresponding U-shaped part are also fixedly installed in the slot of the right shell body, and a positioning pin B fixedly connected to the corresponding two springs is also fixedly installed in one end of the slot.

[0015] As a preferred technical solution of the present invention, when the left shell and the right shell form an angle of 180°, the five shrimp shell members are spread out in a straight line and are parallel to the horizontal wing pieces and elastic pieces.

[0016] As a preferred technical solution of the present invention, when the left shell body and the right shell body form an angle of 0°, the five shrimp shell parts rotate and bend around their respective axes, the sliding protrusions of the wing pieces completely slide into the bottom of the arc-shaped groove inside the slide seat, the limiting groove of the U-shaped part and the positioning pin A slide, and at the same time the elastic sheet bends toward one side of the shrimp shell part, and when the left shell body and the right shell body rotate 0-180°, the outer sides of the synchronously rotating left shell body, shrimp shell part and right shell body are always in contact with the flexible screen and support the flexible screen.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the outward folding flexible screen mobile terminal of the present invention has the following beneficial effects:

[0018] 1) The left shell and the right shell can be connected to each other in synchronous rotation through a hinge mechanism. The plurality of shrimp shell members cooperate with the motion concentric mechanism, the torque mechanism and the synchronous motion structure so that the total length of the position where each shrimp shell member is attached to the flexible screen remains unchanged after being unfolded and closed. The flexible screen is smoothly supported during the opening and closing process of the mobile terminal, thereby preventing the flexible screen from being damaged by the strong stress generated by the rotation of the hinge mechanism.

[0019] 2) The synchronization mechanism A and the synchronization mechanism B form a motion concentric mechanism, so that the five shrimp shells maintain a stable rotation relationship and rotation path, ensuring that the rotation center lines of the multiple shrimp shells of the hinge mechanism also coincide with their corresponding center lines, while also ensuring the smoothness of the hinge mechanism during rotation. When the two toothed sleeves engaged by the torsion mechanism rotate with their respective pins as the turning points, the torsion plate is used to cooperate with the tooth grooves of the two toothed sleeves to provide torque when the left and right shells rotate, and provide mechanical rotation feedback to the user's hand, thereby avoiding damage to the flexible screen, and achieving the left and right shells to stop as they fold, which plays a certain limiting role;

[0020] 3) The arc-shaped groove inside the slide seat can limit and guide the sliding path of the sliding protrusions of the two wings, and also play a role in compensating the distance, so that the two wings can move relative to each other and synchronously drive the left shell and the right shell to rotate synchronously; the spring has a certain elastic pulling force on the U-shaped part to prevent the elastic sheet from causing the left shell and the right shell to bounce open quickly, thereby preventing damage to the flexible screen, and when the hinge mechanism is closed, the internal structure requires a small Z-direction space, so that the mobile terminal can be made thin and light. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is one of the internal structure schematic diagrams of the present invention;

[0023] Figure 3 This is the second schematic diagram of the internal structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure located at part A;

[0025] Figure 5 For the present invention Figure 3 An enlarged schematic diagram of the structure located in part B;

[0026] Figure 6 It is a schematic diagram of the connection structure between the torque mechanism and the first synchronous motion mechanism of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the second synchronous motion mechanism in the unfolded state of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the second synchronous motion mechanism in the closed rotation state of the present invention;

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the present invention in a closed rotation state.

[0030] In the figure: 1, housing; 11, left housing; 12, right housing; 13, slot; 131, positioning pin A; 132, positioning pin B; 2, hinge mechanism; 21, first shrimp shell member; 22, second shrimp shell member; 23, third shrimp shell member; 24, fourth shrimp shell member; 25, fifth shrimp shell member; 2a, synchronization mechanism A; 2a1, Y-shaped crescent boss; 2a2, first crescent groove member; 2b, synchronization mechanism B; 2b1, second crescent boss Socket part; 2b2, crescent part; 2c, torque mechanism; 2c1, Y-shaped fixed boss; 2c2, toothed sleeve; 2c3, torque plate; 2c4, E buckle; 2d, first synchronous motion mechanism; 2d1, wing; 2d2, cover body; 2d3, slide seat; 2e, second synchronous motion mechanism; 2e1, elastic sheet; 2e2, U-shaped part; 2e21, limit slide groove; 2e3, spring; 2e4, end plate; 3, flexible screen. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-9 The present invention provides an outward-folding flexible screen mobile terminal, including a housing 1, a hinge mechanism 2 and a flexible screen 3. The housing 1 is composed of a left housing 11 and a right housing 12. A hinge mechanism 2 is installed between the left housing 11 and the right housing 12 for synchronously folding and rotating the two and realizing the installation of the flexible screen 3. The hinge mechanism 2 is composed of five parallel first shrimp shell members 21, second shrimp shell members 22, third shrimp shell members 23, fourth shrimp shell members 24 and fifth shrimp shell members 25, as well as a motion concentric mechanism for realizing synchronous rotation of the five shrimp shell members and mirror-setting, a torsion mechanism 2c and a synchronous motion structure;

[0033] The motion concentric mechanism includes a synchronization mechanism A2a and two synchronization mechanisms B2b. The synchronization mechanism A2a is installed on the second shrimp shell member 22, the third shrimp shell member 23 and the fourth shrimp shell member 24, one synchronization mechanism B2b is installed on the first shrimp shell member 21 and the second shrimp shell member 22, and the other synchronization mechanism B2b is installed on the fourth shrimp shell member 24 and the fifth shrimp shell member 25. The synchronization mechanism A2a cooperates with the synchronization mechanism B2b to realize the synchronous rotation of the five shrimp shell members around their respective axes.

[0034] The torque mechanism 2c is installed on the third shrimp shell member 23 to provide torque during rotation, and cooperates with the first synchronous motion mechanism 2d installed on the left shell 11 and the right shell 12 to realize the limited synchronous rotation of the shrimp shell member and the shell 1;

[0035] The second synchronous motion mechanism 2e is also installed on the left shell 11 and the right shell 12, and cooperates with the first synchronous motion mechanism 2d to realize the outward folding and synchronous rotation of the left shell 11 and the right shell 12.

[0036] Furthermore, the synchronization mechanism 2a includes a Y-shaped crescent boss 2a1 fixedly mounted on the third shrimp shell member 23, and the crescent bosses on both sides of the Y-shaped crescent boss 2a1 are relatively slidably connected with the first crescent groove member 2a2, and the two first crescent groove members 2a2 are respectively mounted on the second shrimp shell member 22 and the fourth shrimp shell member 24, and cooperate with the Y-shaped crescent boss 2a1 to achieve a stable rotation relationship and rotation path between the above-mentioned three shrimp shell members, and the crescent bosses on both sides of the Y-shaped crescent boss 2a1 slide in a specific path within the two first crescent groove members 2a2, ensuring that the three shrimp shell members can smoothly and synchronously rotate around their respective centers.

[0037] Furthermore, the two synchronization mechanisms B2b are each composed of a second crescent groove member 2b1 and a crescent member 2b2 that rotates therewith. The second crescent groove member 2b1 of one synchronization mechanism B2b is installed on the second shrimp shell member 22, and a stable rotation relationship and rotation path are maintained between the first shrimp shell member 21 and the second shrimp shell member 22 by cooperating with the crescent member 2b2 installed on the first shrimp shell member 21. The second crescent groove member 2b1 of the other synchronization mechanism B2b is installed on the fourth shrimp shell member 24, and a stable rotation relationship and rotation path are maintained between the fourth shrimp shell member 24 and the fifth shrimp shell member 25 by cooperating with the crescent member 2b2 installed on the fifth shrimp shell member 25. The crescent member 2b2 slides along a specific path in the second crescent groove member 2b1, ensuring that the two shrimp shell members on the side of the hinge mechanism 2 can also rotate smoothly and synchronously around their respective centers.

[0038] Furthermore, the torque mechanism 2c includes a Y-shaped fixed boss 2c1 installed on the third shrimp shell member 23, and two toothed sleeves 2c2 are sleeved on the top of the Y-shaped fixed boss 2c1 through two fixedly connected pins. The two toothed sleeves 2c2 are provided with tooth grooves that mesh with each other and rotate synchronously on opposite sides. One end of the two pins is also sleeved with a torsion plate 2c3 that cooperates with the toothed sleeve 2c2 to rotate to provide torque for the hinge mechanism 2. A gasket sleeved on the outside of the pin is provided between the torque plate 2c3 and the toothed sleeve 2c2. The ends of the two pins are also buckled with E buckles 2c4 to prevent the torque plate 2c3 from falling off. The torque mechanism 2c can provide torque for the rotation of the left shell 11 and the right shell 12, and provide mechanical feedback to the hands of the personnel to avoid excessive force and damage to the flexible screen 3.

[0039] Furthermore, the first synchronous motion mechanism 2d includes two wing pieces 2d1 respectively fixedly connected to the two toothed sleeves 2c2, and sliding bosses are fixedly provided on both sides of the end of the wing piece 2d1, and the sliding bosses slide in cooperation with the arc-shaped groove inside the slide seat 2d3, one of the slide seats 2d3 is installed in the corresponding workpiece groove on the inner side of the left shell body 11, and the other slide seat 2d3 is installed in the corresponding workpiece groove on the inner side of the right shell body 12, and a cover body 2d2 is fixedly installed on the top of the slide seat 2d3, when the left shell body 11 and the right shell body 12 are fully closed, the sliding boss slides to the bottom of the arc-shaped groove, and when the sliding boss of the wing piece 2d1 slides in the arc-shaped groove inside the corresponding slide seat 2d3, the arc-shaped groove limits and guides the sliding path of the wing piece 2d1, and also plays a role in compensating the distance.

[0040] Furthermore, the two second synchronous motion mechanisms 2e each include a U-shaped member 2e2 and an end plate 2e4, a bendable elastic sheet 2e1 is fixedly installed between the U-shaped member 2e2 and the end plate 2e4 by screws, two springs 2e3 are fixedly installed on the inner side of the U-shaped member 2e2, and limiting slide grooves 2e21 are provided on both sides of the U-shaped member 2e2, the U-shaped member 2e2 and the end plate 2e4 of one of the second synchronous motion mechanisms 2e are respectively fixedly connected to the inner side of the slot 13 on the left shell 11 and the inner side of the right shell 12, and two positioning pins A131 slidably connected to the limiting slide grooves 2e21 on both sides of the corresponding U-shaped member 2e2 are fixedly installed in the slot 13 of the left shell 11, and one end of the slot 13 is also fixedly installed in the slot There is a positioning pin B132 fixedly connected to the corresponding two springs 2e3, and the U-shaped part 2e2 and the end plate 2e4 of another second synchronous motion mechanism 2e are respectively fixedly connected to the inner groove 13 on the right shell 12 and the inner side of the left shell 11, and two positioning pins A131 slidingly connected to the limiting slide grooves 2e21 on both sides of the corresponding U-shaped part 2e2 are also fixedly installed in the groove 13 of the right shell 12, and a positioning pin B132 fixedly connected to the corresponding two springs 2e3 is also fixedly installed at one end of the groove 13. During the opening process of the mobile terminal of the second synchronous motion mechanism 2e, the limiting slide grooves 2e21 on both sides of the U-shaped part 2e2 slide with the positioning pin A131, and the distance is also compensated.

[0041] Furthermore, when the left shell 11 and the right shell 12 form an angle of 180°, the five shrimp shell members are spread out in a line and are parallel to the horizontal wing 2d1 and the elastic sheet 2e1, ensuring that the left shell 11 and the right shell 12 can be spread out horizontally.

[0042] Furthermore, when the left shell 11 and the right shell 12 form an angle of 0°, the five shrimp shell parts rotate and bend around their respective axes, the sliding protrusion of the wing 2d1 completely slides into the bottom of the arc-shaped groove inside the slide seat 2d3, the limiting groove 2e21 of the U-shaped part 2e2 slides with the positioning pin A131, and at the same time, the elastic sheet 2e1 bends toward one side of the shrimp shell part, and when the left shell 11 and the right shell 12 rotate 0-180°, the outer sides of the synchronously rotating left shell 11, shrimp shell part and right shell 12 are always in contact with the flexible screen 3 and support the flexible screen 3, ensuring that when the left shell 11 and the right shell 12 are fully closed, the outer side of the hinge mechanism 2 can smoothly support the flexible screen 3.

[0043] Specifically, when the mobile terminal needs to be opened, the left shell 11 and the right shell 12 are first pulled, the left shell 11 rotates counterclockwise, and the right shell 12 rotates clockwise. Under the action of the first synchronous motion mechanism 2d, the two toothed sleeves 2c2 engaged by the torsion mechanism 2c also rotate with their respective pins as the turning points, and cooperate with the torsion plate 2c3, so that the tooth grooves of the two toothed sleeves 2c2 engaged provide the torque when the left shell 11 and the right shell 12 rotate, and the mechanical rotation feedback is provided to the user's hand to avoid damage to the flexible screen, so that the left shell 11 and the right shell 12 can be stopped as they are folded, and a certain limiting effect is played; in the process of opening the mobile terminal, the force acts on the hinge mechanism 2, and the Y-shaped crescent boss 2a1 installed on the third shrimp shell member 23 in the synchronization mechanism A2a is respectively connected to the Y-shaped crescent boss 2a1 installed on the second shrimp shell member 22 and the fourth The first crescent groove member 2a2 on the shrimp shell member 24 is slidably matched, and plays a certain role in limiting and synchronizing the second shrimp shell member 22, the third shrimp shell member 23 and the fourth shrimp shell member 24, ensuring that the rotation center lines of the three shrimp shell members coincide with their corresponding center lines. The synchronization mechanism B2b is installed on the second crescent groove member 2b1 installed on the second shrimp shell member 22 and the fourth shrimp shell member 24, and is slidably matched with the crescent member 2b2 installed on the first shrimp shell member 21 and the fifth shrimp shell member 25, and plays a certain role in limiting and synchronizing the first shrimp shell member 21 and the second shrimp shell member 22 and the fourth shrimp shell member 24 and the fifth shrimp shell member 25, ensuring that the rotation center lines of the two shrimp shell members on both sides of the hinge mechanism 2 also coincide with their corresponding center lines. The synchronization mechanism A2a and the synchronization mechanism B2b form a motion concentric mechanism, so that the five shrimp shell members maintain a stable rotation relationship and rotation path;

[0044] The sliding protrusions of the two wing pieces 2d1 of the first synchronous motion mechanism 2d slide in cooperation with the arc-shaped slide grooves inside the corresponding slide seat 2d3. The arc-shaped slide grooves limit and guide the sliding path of the wing pieces 2d1 and also play a role in compensating the distance, so that the two wing pieces 2d1 can move relative to each other and synchronously drive the left housing 11 and the right housing 12 to rotate.

[0045] During the opening process of the mobile terminal, the limiting slide grooves 2e21 on both sides of the U-shaped part 2e2 of the second synchronous motion mechanism 2e slide with the positioning pin A131, and the distance is also compensated. Since the end plate 2e4 fixes one end of the elastic sheet 2e1, and the elastic sheet 2e1 has a certain elastic potential energy, the left shell 11 and the right shell 12 are synchronously rotated and opened. The spring 2e3 exerts a certain elastic pulling force on the U-shaped part 2e2, preventing the elastic sheet 2e1 from quickly popping open the left shell 11 and the right shell 12, thereby preventing damage to the flexible screen 3.

[0046] It should be supplemented that: when the mobile phone is opened or closed, the total length of the outer sides of the first shrimp shell member 21, the second shrimp shell member 22, the third shrimp shell member 23, the fourth shrimp shell member 24 and the fifth shrimp shell member 25 remains unchanged, and always remains smooth, and supports the flexible screen 3.

[0047] 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.

[0048] 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.

[0049] 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. An outward-folding flexible screen mobile terminal, comprising a housing, a hinge mechanism and a flexible screen, characterized in that: The shell is composed of a left shell and a right shell, and a hinge mechanism is installed between the left shell and the right shell for synchronously folding and rotating the two and realizing the installation of a flexible screen. The hinge mechanism is composed of five parallel first shrimp shell members, second shrimp shell members, third shrimp shell members, fourth shrimp shell members and fifth shrimp shell members, as well as a motion concentric mechanism, a torsion mechanism and a synchronous motion structure for realizing synchronous rotation of the five shrimp shell members and mirror-setting; The motion concentric mechanism includes a synchronization mechanism A and two synchronization mechanisms B. The synchronization mechanism A is installed on the second shrimp shell member, the third shrimp shell member and the fourth shrimp shell member, one synchronization mechanism B is installed on the first shrimp shell member and the second shrimp shell member, and the other synchronization mechanism B is installed on the fourth shrimp shell member and the fifth shrimp shell member. The synchronization mechanism A cooperates with the synchronization mechanism B to realize the synchronous rotation of the five shrimp shell members around their respective axes. The torsion mechanism is installed on the third shrimp shell member to provide the torsion force during rotation, and cooperates with the first synchronous motion mechanism installed on the left shell member and the right shell member to realize the limited synchronous rotation of the shrimp shell member and the shell member; The second synchronous motion mechanism is also installed on the left shell and the right shell, and cooperates with the first synchronous motion mechanism to realize the outward folding and synchronous rotation of the left shell and the right shell; The synchronization mechanism includes a Y-shaped crescent boss fixedly mounted on the third shrimp shell member, the crescent protrusions on both sides of the Y-shaped crescent boss are relatively slidably connected with the first crescent groove member, the two first crescent groove members are respectively mounted on the second shrimp shell member and the fourth shrimp shell member, and cooperate with the Y-shaped crescent boss to achieve a stable rotation relationship and rotation path between the above three shrimp shell members; The two synchronization mechanisms B are both composed of a second crescent groove member and a crescent member that rotates with it. The second crescent groove member of one synchronization mechanism B is installed on the second shrimp shell member, and a stable rotation relationship and rotation path are maintained between the first shrimp shell member and the second shrimp shell member by cooperating with the crescent member installed on the first shrimp shell member. The second crescent groove member of the other synchronization mechanism B is installed on the fourth shrimp shell member, and a stable rotation relationship and rotation path are maintained between the fourth shrimp shell member and the fifth shrimp shell member by cooperating with the crescent member installed on the fifth shrimp shell member.

2. The outward folding flexible screen mobile terminal according to claim 1, characterized in that: The torque mechanism includes a Y-shaped fixed boss installed on the third shrimp shell member, and two toothed sleeves are sleeved on the top of the Y-shaped fixed boss through two fixedly connected pins. The two toothed sleeves are provided with tooth grooves that mesh with each other and rotate synchronously on opposite sides. One end of the two pins is also sleeved with a torsion plate that cooperates with the toothed sleeves to rotate and provide torque for the hinge mechanism. A gasket sleeved on the outside of the pin is provided between the torque plate and the toothed sleeve, and the ends of the two pins are also buckled with E buckles to prevent the torque plate from falling off.

3. The outward folding flexible screen mobile terminal according to claim 2, characterized in that: The first synchronous motion mechanism includes two wing pieces fixedly connected to two toothed sleeves respectively, and sliding protrusions are fixedly provided on both sides of the end of the wing piece, and the sliding protrusions slide in cooperation with the arc-shaped slide groove inside the slide seat, one of the slide seats is installed in the corresponding workpiece groove on the inner side of the left shell body, and the other slide seat is installed in the corresponding workpiece groove on the inner side of the right shell body, and a cover body is fixedly installed on the top of the slide seat, and when the left shell body and the right shell body are fully closed, the sliding protrusion slides to the bottom of the arc-shaped slide groove.

4. The outward folding flexible screen mobile terminal according to claim 3, characterized in that: The two second synchronous motion mechanisms each include a U-shaped part and an end plate, a bendable elastic sheet is fixedly installed between the U-shaped part and the end plate by screws, two springs are fixedly installed on the inner side of the U-shaped part, and limiting sliding grooves are provided on both sides of the U-shaped part. The U-shaped part and the end plate of one second synchronous motion mechanism are respectively fixedly connected to the slot on the inner side of the left shell body and the inner side of the right shell body, and two positioning pins A slidably connected to the limiting sliding grooves on both sides of the corresponding U-shaped part are fixedly installed in the slot of the left shell body, and a positioning pin B fixedly connected to the corresponding two springs is also fixedly installed in one end of the slot. The U-shaped part and the end plate of the other second synchronous motion mechanism are respectively fixedly connected to the slot on the inner side of the right shell body and the inner side of the left shell body, and two positioning pins A slidably connected to the limiting sliding grooves on both sides of the corresponding U-shaped part are also fixedly installed in the slot of the right shell body, and a positioning pin B fixedly connected to the corresponding two springs is also fixedly installed in one end of the slot.

5. The outward folding flexible screen mobile terminal according to claim 4, characterized in that: When the left shell body and the right shell body form an included angle of 180 degrees, the five shrimp shell members are spread out in a straight line and are parallel to the wing pieces and the elastic pieces in a horizontal state.

6. The outward folding flexible screen mobile terminal according to claim 4, characterized in that: When the left shell body and the right shell body form an angle of 0°, the five shrimp shell parts rotate and bend around their respective axes, the sliding protrusion of the wing piece completely slides into the bottom of the arc-shaped slide groove inside the slide seat, the limiting slide groove and the positioning pin A of the U-shaped part slide, and at the same time the elastic sheet bends toward one side of the shrimp shell part, and when the left shell body and the right shell body rotate 0-180°, the outer sides of the synchronously rotating left shell body, shrimp shell part and right shell body are always in contact with the flexible screen and support the flexible screen.

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